• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    CUTTING TOOL, E, CUTTING TOOL REFRIGERANT OUTPUT A cutting tool (10, 36, 43) comprising a refrigerant channel (22) having a refrigerant outlet (24) formed with an elongated shape, in which a line medial (A), extending longitudinally along the refrigerant outlet (24), comprises a flexion (60).
    公开号:BR112012028048B1
    申请号:R112012028048-1
    申请日:2011-05-25
    公开日:2020-10-20
    发明作者:Grigori Neiman；Leonid Amstibovitsky
    申请人:Iscar Ltd.；
    IPC主号:
    专利说明:

    FIELD
    [001] The purpose of the present invention relates to cutting tools having shaped refrigerant outlets configured to dispense refrigerant to a cutting edge of a cutting element. FUNDAMENTALS
    [002] A method of cooling a cutting edge of a cutting element is to dispense pressurized refrigerant of high concentration in it. Such refrigerant can be dispensed via refrigerant channels formed with conformed refrigerant outlets.
    [003] US patents US 6,045,300 and US 5,775,854 describe shaped refrigerant outlets.
    [004] It is an objective of the present invention to provide a new and improved refrigerant outlet for a cutting tool. SUMMARY
    [005] According to a first aspect of the subject of the present invention, a cutting tool is provided comprising a refrigerant channel having a refrigerant outlet formed with an elongated shape, in which a medial line, extending longitudinally along the refrigerant outlet, comprises bending.
    [006] It will be noted that the refrigerant outlet can be formed in any appropriate part of the cutting tool.
    [007] To add details, the cutting tool may comprise a cutting tool body formed with the refrigerant outlet.
    [008] Alternatively, the cutting tool body may comprise a refrigerant dispensing housing mounted thereon. In such a case, the refrigerant housing may comprise an outlet end formed with the refrigerant outlet.
    [009] Another alternative is that the cutting tool body may comprise a refrigerant dispensing housing mounted on it and an elongated cutting tool nozzle retained by the refrigerant dispensing housing. In such a case, the cutting tool nozzle may comprise an outlet end formed with the refrigerant outlet.
    [0010] The refrigerant outlet may comprise first and second ends and an elongated intermediate part extending between them. The medial line can extend between midpoints of the first and second ends. The medial line, when extending between the first and second ends, is except a straight line. It will be understood that the medial line, as well as planes and geometric axes mentioned in the descriptions and claims, refer to imaginary geometric lines and axes. A medial line of an elongated coolant outlet can be determined by measuring points that are an equal distance from the opposite longitudinal edges of the outlet.
    [0011] Flexion can have a V-shape or U-shape. One or more parts of the medial line can be straight. The entire medial line can be curved. In the latter case, the flexion may consist of at least part of the curve.
    [0012] The refrigerant outlet is defined by a peripheral edge. The peripheral edge can be formed at an outlet end of the cutting tool, housing or coolant dispensing nozzle. The peripheral edge can comprise at least one curved edge. The peripheral edge can comprise only curved edges. Differently mentioned, the peripheral edge may have a non-polygonal shape. The peripheral edge of the refrigerant outlet may have a closed shape. Unlike mentioned, the refrigerant outlet can be defined within a continuous edge.
    [0013] According to another aspect of the subject of the present invention, a cutting tool nozzle is provided for dispensing refrigerant, having a refrigerant outlet with any of the details of the first aspect.
    [0014] The cutting tool nozzle may additionally comprise inlet and outlet ends and a coolant channel extending from the inlet end to the outlet end. The refrigerant channel can comprise a refrigerant inlet formed at its inlet end and a refrigerant outlet formed at its outlet end.
    [0015] In accordance with another aspect of the subject of the present invention, a cutting tool refrigerant dispensing system is provided comprising a refrigerant dispensing housing and a cutting tool nozzle thus contained and formed with an output of refrigerant, the refrigerant outlet having any of the details of the first aspect.
    [0016] According to any of the above aspects, the cutting tool may comprise a cutting element having a cutting edge. The flexure curvature can be configured to match the curvature of the cutting edge of a cutting element. At least the curve of the medial line can be configured to correspond to the curvature of a cutting edge forming the exit shape, so that its resulting flexion corresponds to a projection of the cutting edge. The cutting element can be a cutting insert.
    [0017] According to another aspect of the subject of the present invention, a cutting tool, coolant dispensing system or cutting tool nozzle, can have a plurality of elongated coolant outlets. For example, one of the refrigerant outlets can be elongated in shape having a medial line comprising a flexion, and a second refrigerant outlet can be elongated in shape, or at least two refrigerant outlets can be elongated in shape.
    [0018] The refrigerant outlets can have any of the details mentioned in combination with other aspects or descriptions below.
    [0019] The cutting tool may have at least one refrigerant outlet directed at a cutting edge, through a first face of a cutting element, and at least one refrigerant outlet directed at the cutting edge, through a second face of a cutting element. The first face can be an inclined surface. The first face can be perpendicular to the second face of the cutting element. The second face can be a raised surface. The at least one refrigerant outlet directed to the first face may be elongated in shape with a medial line comprising a flexion, and the at least one refrigerant outlet directed to the second face may be in an elongated linear shape, i.e., a straight elongated shape , although it can have one or more curved edges (for example, it can be oval).
    [0020] According to any of the above, a cutting tool, coolant dispensing system or cutting tool nozzle, can comprise only a single coolant outlet. The single refrigerant outlet can be configured to dispense fluid on a cutting element surface. The surface can be an inclined surface. In a case where a cutting tool is configured to dispense refrigerant along two sides of a cutting element, the cutting tool may comprise an additional elongated refrigerant outlet configured to direct refrigerant to the other face of a cutting element.
    [0021] The cutting tool, the coolant dispensing system, and the cutting tool nozzle, according to any of the above aspects, can have any of the aspects mentioned in combination with any other aspect or description below.
    [0022] In accordance with another aspect of the subject of the present invention, a cutting tool nozzle is provided which includes a refrigerant channel having a refrigerant channel geometric axis C. A cross section of the refrigerant channel, taken perpendicular to the geometric axis of channel C, has an elongated curved shape with two ends. The cross section has a periphery and a medial line A passing through the ends. At least three circles, two outer circles and an inner circle, can be inscribed in the cross section, the center of each circle being located on the medial line A. Each outer circle contacts the periphery at a respective end along an arc of the circle, the arch being centered at an intersection of the medial line A and the respective end. The inner circle contacts the periphery at points on opposite sides of the medial line A, and the center of the inner circle is located between the centers of the outer circles; and where the centers of the inscribed circles are non-collinear.
    [0023] In accordance with yet another aspect of the subject of the present invention, a cutting tool is provided which includes a cutting edge located on a cutting part of the cutting tool, and a refrigerant dispensing system, the cooling system. Refrigerant dispensing includes at least the aforementioned nozzle.
    [0024] According to any of the above, a possible advantage of the elongated shape of the refrigerant outlet is that it can be configured to provide a uniform supply of refrigerant along an elongated cutting edge of a cutting element. Such an area can also include a docking area with a workpiece. For example, such a shaped refrigerant outlet can be configured to provide a uniform supply of refrigerant along a cutting edge comprising an apex and at least one elongated edge extending from the apex to a predetermined distance from the apex. The coolant supply being applied evenly from the apex to a distal end of at least one elongated edge. Such a design can possibly extend the life of the cutting element.
    [0025] Another possible advantage of the elongated shape of the refrigerant outlet is that it can be configured to provide refrigerant along the different shaped elongated cutting edges (for example, a cutting edge comprising an apex having two lateral edges extending from it and forming a first angle between them, and a second cutting edge where the side edges form a different angle between them). Thus, a single outlet opening shape can be used to cool more than one shaped cutting edge.
    [0026] Another possible advantage of the elongated shape comprising a medial line with a flexion is that the cutting tool can only comprise a single outlet opening. Such a construction may allow the exit area to be devoid of a support area spaced between adjacent openings, to allow cracking between the openings. The possible advantages of such a construction can be: the provision of a compact cutting tool for a given refrigerant supply rate; and a production process in which only one refrigerant outlet needs to be formed.
    [0027] Yet another possible advantage of an elongated shape comprising a bend is that such shape is configured to direct coolant only to a cutting edge of a cutting element, for example, a part of a cutting element away from its edge cutting. Consequently, less refrigerant can possibly be used than would otherwise be the case.
    [0028] It should be understood that an alternative way of defining the characteristic of a refrigerant outlet formed with an elongated shape, in which a medial line extending longitudinally along the refrigerant outlet comprises a flexion, may be one in which the The refrigerant outlet comprises an elongated shape, at least part of the elongated shape being formed with a curved path or flexion part. Another way to define such an aspect is that in which the refrigerant outlet comprises an elongated shape, with first and second ends and elongated opposite edges extending between them, the elongated opposite edges comprising at least one flexion. BRIEF DESCRIPTION OF THE DRAWINGS
    [0029] For a better understanding of the subject of the present invention, and to show how it can be done in practice, reference will be made to the attached drawings, in which: Fig. 1 is an isometric top view of part of a tool cutting; Fig. 2 is an isometric bottom view of part of the cutting tool shown in Fig. 1; Fig. 3 is a top view of part of the cutting tool of Figs. 1 and 2; Fig. 4 is a side view of part of the cutting tool of Figs. 1 to 3, including a partial cross section taken along line IV-IV in Fig. 3; Fig. 5 is an isometric view of a cutting tool nozzle of the cutting tool of Figs. 1 to 4; Fig. 6 is a schematic side view of the cutting tool nozzle of Figs. 1 to 5; Fig. 7 is a schematic cross section taken along line VII-VII in Fig. 6; Figs. 8A to 8D are schematic front views of refrigerant outlets of the cutting tool, and cutting elements with cutting edges correspondingly in the shape of the respective refrigerant outlets; Fig. 9 is a schematic front view of another outlet of the cutting tool; Fig. 10 is an isometric top view of another cutting tool; and Fig. 11 is an isometric top view of part of yet another cutting tool.
    [0030] Where considered appropriate, reference numerals can be repeated between figures to indicate corresponding or similar elements. DETAILED DESCRIPTION
    [0031] In the following description, various aspects of the subject of the present invention will be described. For purposes of explanation, specific configurations and details are provided in sufficient detail to provide a complete understanding of the subject of the present invention. However, it will also be noted by a person skilled in the art that the subject of the present invention can be practiced without the specific details presented here. Reference is made to Figs. 1 to 4, showing a cutting tool 10. The cutting tool 10 of this example is a cutting tool configured to rotate, and comprises a cutting tool body 12, a refrigerant dispensing system 14, and can comprise an insert cutting 16.
    [0032] The cutting tool body 12 may comprise a cutting section 12A and a shank section 12B extending therefrom.
    [0033] The cutting section 12a can be formed with a refrigerant channel 12A1 (Fig. 4), to supply refrigerant to the refrigerant dispensing system 14, and can comprise a cutting insert assembly part 12C and a part of 12D housing assembly.
    [0034] The cutting insert assembly part 12C can be formed with an insert cavity 12E in which the cutting insert 16 can be secured.
    [0035] The refrigerant dispensing system 14 may comprise a refrigerant dispensing housing 14A and a cutting tool nozzle 14B mounted to the refrigerant dispensing housing 14A and configured to dispense refrigerant (not shown) by it.
    [0036] Referring now only to Fig. 4, the refrigerant dispensing housing 14A can be attached to the housing assembly part 12D. The refrigerant dispensing housing 14A may have a base wall 15A, an upper wall 15B and a peripheral wall 15C extending between them, each of which comprises respective internal and external housing surfaces (15A1, 15A2, 15B1, 15B2, 15C1, 15C2).
    [0037] The outer housing surface 15A2 of the base wall 15A and an upper surface 12D1 can be found along an intersection plane P0.
    [0038] The peripheral wall 15C can be formed with a cutting nozzle mounting opening 15C3 in which the cutting tool nozzle 14B can be mounted, and a shoulder stop 15C4 extending into the base walls and higher (15 A. 15B).
    [0039] The internal housing surfaces (15A1, 15B1, 15C1) can define a housing chamber 17 there.
    [0040] A first plane Pl, away from and parallel to the intersection plane P0, can extend through the medium of the refrigerant dispensing housing 14A.
    [0041] The internal nozzle surface of the base wall 15Al and / or the internal nozzle surface of the upper wall (15B1) can be inclined in relation to the foreground Pl, and can form an acute angle βl with it. The purpose of which will be explained below.
    [0042] When the cutting tool 10 is held in a vertical orientation, as shown in Fig. 4, at least a part 14C of the cutting tool nozzle 14B can be arranged above the insert cavity 12E. In this example, the cutting tool nozzle 14B can be arranged above the surface 16E of the cutting insert 16, which is an inclined surface.
    [0043] The cutting insert 16 comprises a cutting edge 16A, that is, an edge configured to fit a workpiece (not shown) when mounted to the cutting tool body 12, as shown.
    [0044] Referring now to Fig. 3, the cutting edge 16A can have first and second cutting edge side surfaces (16B, 16C) meeting at an apex 16D. Similarly, the curved cutting edge 16A is seen from a different view in Fig. 2.
    [0045] We draw your attention to Figs. 5 and 6. The cutting tool nozzle 14B may comprise an elongated shape. The nozzle 14B may have a first nozzle tube section 18 and a second nozzle tube section 20 extending therefrom.
    [0046] The first nozzle tube section 18 can be cylindrical in shape with a diameter D1 and can comprise a first tube inlet end 18A, a first front end of tube 18B, and a first peripheral wall of tube section 18C extending between them.
    [0047] The first nozzle tube section 18 can be formed with an inclined cut in the first tube section 18D, extending from the inlet end of the first tube section 18 A to the peripheral wall of the first tube section 18C.
    [0048] The front end of the first tube section 18B can be formed with the tapered edge of the first tube section 18E, which decreases in diameter in one direction away from the inlet end of the first tube section 18 A.
    [0049] The second nozzle tube section 20 may be cylindrical in shape with a diameter D2 and may comprise a rear end of the second tube section 20A, an outlet end of the second tube section 20B, and a peripheral wall of the second tube section 20C extending between them.
    [0050] As best seen in Fig. 7, the peripheral wall of the second section of tube 20C cannot be circular, and can have straight sections 20E arranged between round sections 20F.
    [0051] The second tube section of the nozzle 20 may have a middle part 20G equally spaced from the rear end of the second tube section 20A and the outlet end of the second tube section 20B.
    [0052] The diameter Dl is larger than the diameter D2, so when the cutting tool nozzle 14B is mounted on the coolant dispensing housing 14A, the cutting tool nozzle 14B can slide backward into the refrigerant dispensing housing 14A, for example, if impacted by a splinter or workpiece, and can telescopically project forward when the refrigerant flows along the FP flow path, such forward movement being interrupted by plugging the tapered edge 18E of the first pipe section with the raised stop part 15C4. Another possible advantage of such a construction may be that it allows for easy insertion and removal of the cutting insert 16 from the cutting tool body 12, when the cutting tool nozzle 14B is partially retracted into the coolant dispensing housing 14 THE.
    [0053] A longitudinal nozzle plane P2 can extend through the half of the cutting tool nozzle 14B. The P2 plane can intersect the PI plane along an intersection line II and be inclined with respect to it.
    [0054] The cutting tool nozzle 14B is formed with a coolant channel 22 extending from the inlet end of the first tube section 18A to the outlet end of the second tube section 20B. The refrigerant channel 22 may comprise first, second and third subchannels (22a, 22B, 22C).
    [0055] The first subchannel 22A can have a cylindrical shape and can extend from the inlet end 18A to the extreme part of the first subchannel 22A1. The extreme part of the first sub-channel 22A1 can be arranged in the second nozzle tube section 20. The extreme part of the first sub-channel 22A1 can be arranged adjacent to the middle part 20G of the second nozzle tube section 20, closest to the rear end of the second tube section 20A than the outlet end of the second tube section 20B.
    [0056] The second subchannel 22B may have a frustoconical shape and may extend from the extreme part of the first subchannel 22A1 to the extreme part of the second subchannel 22B1, with the peripheral surface of the second subchannel 22B2 extending between them. The second subchannel 22B may decrease in diameter in one direction away from the inlet end of the first 18A tube section.
    [0057] The third subchannel 22C may extend from a third rear portion of subchannel 22C1 to the outlet end of the second section of pipe 20B, and may comprise a third peripheral surface of subchannel 22C2.
    [0058] The third rear part of subchannel 22C1 may, along its length, extend in a linear manner into the second subchannel 22B of the second extreme part of subchannel 22B1. The third rear part of sub-channel 22C1 is shown in Fig. 6 extending to a part of the second sub-channel 22B, disposed between the first extreme part of sub-channel 22A1 and the second extreme part of sub-channel 22B1, since the dimension of the third sub-channel 22C , which is parallel to the longitudinal nozzle plane P2, has a greater magnitude than the parallel dimension of the second subchannel 22B. The cutting tool 10 may comprise side wall edges 22D projecting into the coolant channel (22). The side wall edges 22D can be arranged between the peripheral surface of the second subchannel 22B2 and the peripheral surface of the third subchannel 22C2.
    [0059] The geometric axis of the third longitudinal subchannel C, which passes through a central point of the third subchannel 22C, can form an acute angle α with the nozzle plane P2.
    [0060] Referring now to Figs. 4 and 6, it can be seen that the cutting tool can be formed with a flow path FP extending from the refrigerant channel 12A1 of the cutting section 12A to the cutting edges 16A, via the refrigerant dispensing system 14, for dispense soda (not shown) by the same.
    [0061] The flow path FP enters the housing chamber 17 in a direction parallel to the refrigerant channel 12A1 and perpendicular to the external nozzle surface of the base wall 15A2. The inclination of the internal nozzle surface to the base wall 15 Al and / or the internal nozzle surface to the upper wall (15bl) can direct the flow path FP to flex (Bl) and extend in a direction parallel to the plane of nozzle P2. The flow path FP can flex (B2) again when entering the rear of the third subchannel 22C1, to extend in a direction parallel to the geometric axis of the third subchannel C.
    [0062] It will be noted that each flexion of the FP flow path can be advantageous, in that it can allow the refrigerant to be directed to a cutting edge of the cutting tool at an upcoming refrigerant outlet. Such bending can allow an effective focused coolant flow to reach the cutting edge. Such bending can also allow a compact cutting tool to be used. Note that such bending can allow a desired flow rate angle (which in this example is shown by angle a) to be within a range of 10 ° to 25 °. Such an angle can provide more effective cooling at the cutting edge than other angles, for example, by lubricating the edge to allow chips to slide along it.
    [0063] With reference to Fig. 5, the third subchannel 22C is shown to comprise a refrigerant outlet 24 formed at the outlet end of the second tube section 20B. The refrigerant outlet 24 is formed with an elongated shape comprising a flexion 24E. The refrigerant outlet 24 can be formed with a continuous edge. Differently mentioned, the refrigerant outlet is arranged in an internal part of the outlet end of the second section of pipe 20B and not along a peripheral part thereof.
    [0064] The refrigerant outlet 24 comprises ends formed by concave-shaped side edges (24A, 24B), each having first and second extreme points (24A1, 24A2, 24B1, 24B2), a convex shaped lower edge 24C extending between the first end points (24A1, 24B1) of the concave side edges (24A, 24B), and a concave top edge 24D extending between the second end points (24A2, 24B2) of the concave side edges (24A , 24B).
    [0065] With reference to Fig. 7, it will be understood that the refrigerant outlet 24 has an elongated shape, since the dimension of the refrigerant outlet 24, extending between central points (24A3, 24B3, Fig. 7) of the edges concave sides (24a, 24B) along a medial line A, is larger than the dimension perpendicular to the medial line A that extends between the convex shaped lower edge 24C and the concave shaped upper edge 24D. Note that the shape of the cross section of the refrigerant channel 22, shown in Fig. 7, is identical to the shape of the refrigerant outlet 24. The view of the cross section and, therefore, the description provided with respect to Fig. 7, corresponds to a description of the refrigerant outlet 24.
    [0066] The refrigerant outlet 24 is asymmetrical around a plane extending between central points (24A3, 24B3) at the two ends (24a, 24B), consequently, the medial line A comprises flexion 60. Flexion 60 of the line medial can correspond to a 24E flexion in the refrigerant outlet format.
    [0067] Angle 0 can be 152 °.
    [0068] A refrigerant outlet can be configured with an elongated shape comprising a flexion that corresponds to a cutting edge of a cutting element. For example, as best seen in Fig. 2, the elongation and curvature of the refrigerant outlet 24 correspond to the elongation of the curvature of the cutting edge 16A. For example, it can be seen that the curvature gradient of the upper edge in concave shape 24D corresponds to that of the cutting edge 16A. It will be understood that the projection of the refrigerant outlet 24 can be slightly above the cutting edge 16A (and therefore the refrigerant outlet 24 can be partially seen in Fig. 2), to allow the fluid path to also be directed towards a docking area of a workpiece to be engaged by the cutting edge 16A, as well as the cutting edge 16A itself.
    [0069] With reference to Figs. 8A to 8D, other examples of refrigerant outlets (26A, 28A, 30A, 32A) configured to correspond to the respective cutting edges (26B, 28B, 30B, 32B) are shown.
    [0070] The medial lines (26C, 28C, 30C, 32C) of the refrigerant outlets (26A, 28A, 30A, 32A) are shown for understanding of correspondence with the cutting edges (26B, 28B, 30B, 32B). Each medial line (26C, 28C, 30C, 32C) comprises at least one flexion (26C, 28G, 30D, 30E, 30F, 32F, 32G).
    [0071] The elongated shapes can be U-shaped or arc-shaped 26A corresponding to a circular cutting edge 26B, a V-shaped refrigerant outlet 28A corresponding to a V-shaped shaped cutting edge 28B, an M-shaped refrigerant outlet 30A corresponding to an M 30B shaped cutting edge, and an S 32A shaped refrigerant outlet corresponding to an S 30B shaped cutting edge.
    [0072] Fig. 9 shows another refrigerant outlet conformed to M 34A, having a magnitude of varying dimension along its length, that is, in a direction transversal to a medial line 34B. For example, the output has a dimension of lesser magnitude M1 in its first section 34C than a magnitude of dimension M2 in its second section 34D. Such a design can be advantageous where a cutting tool is configured to cut materials from different wires, causing non-uniform heating of the parts of a cutting edge of a cutting tool that requires non-uniform amounts of refrigerant to be applied to the different parts. The medial line (34B) can have flexions (34E, 34F, 34G).
    [0073] It will be understood that a magnitude of varying dimension along an elongated refrigerant outlet can be applied to any shape according to the subject of the present invention and not just to an M shaped refrigerant outlet.
    [0074] Returning to Fig. 8, for the purpose of explanation only, it is observed that the curvature of the refrigerant outlet 28A can result in a solid surface 28D between two ends (28E, 28F), which is part of the extreme face of outlet where the refrigerant outlet 28A is formed. It will be noted that if the refrigerant outlet 28A were a triangular shaped void in which the two ends (28E, 28F) were connected by a straight edge, the refrigerant fluid would also be projected onto a part of the cutting element 28 which is away from its cutting edge 28B. A possible advantage of a refrigerant outlet, according to the subject of the present invention, may be that the refrigerant fluid is not directed to the parts of a cutting element that are away from its cutting edge and are therefore less needed.
    [0075] Reference is made to Fig. 10, showing a cutting tool 36 comprising a cutting insert 32, and a cutting tool body 38.
    [0076] The cutting tool body 38 may comprise a cutting section 38A and a shank section 38B extending therefrom.
    [0077] The cutting section 36 is formed with a refrigerant outlet shaped in S, 32A, on its extreme outlet surface 40. The cutting section 36 can also be formed with an oval shaped refrigerant outlet 42, having curved edges (42A, 42B) in a part protruding 44 out of the cutting section 38A.
    [0078] The S-shaped refrigerant outlet, 32A, can be configured to dispense refrigerant (not shown) through a face 32D of the cutting insert 32 that can apply refrigerant to the cutting edge 32B. The oval shaped refrigerant outlet 42 can be configured to dispense refrigerant (not shown) through another face 32E of the cutting insert 32 that can apply refrigerant to the cutting edge 32B. In this example, face 32D is an inclined surface and face 32E is an embossed surface.
    [0079] It should be understood that the refrigerant outlets can be of any suitable shape, according to the subject of the present invention.
    [0080] Reference is made to Fig. 11, showing a cutting tool 43 comprising a cutting insert 43 A, and a cutting tool body 43B.
    [0081] The cutting tool body 43B may comprise a cutting section 43B1, a shank section 43B2, a coolant dispensing housing 43C mounted on the cutting section 43B1, and a coolant channel (not shown) extending cutting section 43B1 and coolant dispensing housing 43C.
    [0082] Refrigerant dispensing housing 43C is formed with an arc shaped refrigerant outlet 26A at the end of the refrigerant channel on its extreme outlet surface 43D.
    [0083] Drawing attention to Figs. 1 and 11, it will be understood that a flexing portion of the refrigerant outlet may have a downward curvature. In other words, an apex 26D of the refrigerant outlet may be further away from a cutting section 12A than the edges 26E of the refrigerant outlet adjacent to apex 26D. It will be appreciated that such an orientation corresponding to a refrigerant outlet can provide a possible advantage when configured to cool a cutting edge.
    [0084] Fig. 7 shows a cross section of the refrigerant channel 22 taken perpendicular to the geometric axis of the third subchannel C. The cross section is taken along line VII-VII in Fig. 6 and defines a plane of cross section P3 of the refrigerant channel 22. Such a cross section of the refrigerant channel 22 has the periphery 44 and the medial line A. The periphery 44 is a closed, non-polygonal shape, which may be in the form of an elongated curved shape provided with two ends 50. Each end 50 constitutes a region of the arched, concave periphery 44, outside the inner circle 54, the inner circle of which is discussed further below. According to some embodiments, the periphery 44 has at least one convex section 46 and at least one concave section 48 which are located on opposite sides of the medial line A, at least one concave section 48 being located between the two ends 50 .
    [0085] At least three circles, two outer circles 52 and an inner circle 54, can be inscribed in the cross section of the refrigerant channel 22. The outer circles 52 may have different radii R1, R2. Each outer circle 52 touches the periphery 44 along an arc of that outer circle 52. The arc can be centered at an intersection (24A3, 24B3) of the medial line A and the respective end 50. The inner circle 54 can have a radius R3 different from the radii of the outer circles 52. The inner circle 54 can contact the periphery 44 on opposite sides of the medial line A. The inner circle 54 can contact the periphery 44 along an arc of the concave section 48. The inner circle 54 can contact the periphery 44 at a point 44A of the convex section 46, the point of which can be diametrically opposite a point 44B of the arc of the convex section 48. The point 44A can be a central point of the concave section 46. The point 44B can be a central point of the convex section 48.
    [0086] The first distance between the centers Ql, Q2 of the two outer circles 52 can be greater than the distances between the center Q3 of the inner circle 54 and the centers Ql, Q2 of any of the outer circles 52. A center P3 of the circle inner 54 can be located between the centers P1, P2 of the outer circles 52. The centers Q1, Q2, Q3 of the three inscribed circles 52, 54 are non-collinear. The radii R1, R2, R3 of the three inscribed circles 52, 54 may be different from each other or may be the same. The external inscribed circles 52 may overlap or be spaced apart. Also, the inner circle 54 can be located midway between the ends 50.
    [0087] Angle 0 can be in the range of 91 ° to 179 °.
    [0088] The center Q3 of the inner circle 54 does not have to be equidistant from the centers Q1 and Q2 of the outer circles 52, or from the ends 50 at opposite ends of the medial line A. Therefore, the first and second medial line sections A1, A2 they don't have to be the same.
    [0089] As described above, there can be three inscribed circles 52, 54. The inscribed circles 52, 54 can be cross sections of holes formed in the nozzle 22 and defined in the cross section plane P3. The holes can be formed by drilling. According to some embodiments, the holes forming the inscribed circles 52, 54 can be joined together to form the refrigerant channel 22 by making other holes between them. According to some embodiments, the holes forming the inscribed circles 52, 54 can be joined together to form the refrigerant channel 22 by other methods.
    [0090] The coolant channel 22 of the nozzle can be formed by techniques, such as machining a nozzle blank or injection molding.
    [0091] According to some embodiments involving machining, a nozzle blank can be provided first. An initial hole is then drilled / milled, the initial hole can have a geometric axis of rotation perpendicular to the plane of cross section P3.
    [0092] The three inscribed circles can be the same size (IR = R2 = R3) after the initial hole is drilled, a milling tool inside the initial hole moves laterally along one of the two medial line sections Al , A2 of the medial line A, to form a first part of the refrigerant channel, and then along another of the two medial line sections, to form a second part of the refrigerant channel. In general, milling is typically conducted with the milling axis being parallel to the axis of rotation of the initial hole.
    [0093] When the inscribed circles have different sizes, drilling / milling of different diameters can be used to form at least the first and second holes. After each hole is formed, or after both holes are formed, one can move a milling tool laterally from a hole formed along at least one of the midline sections A1, A2. If two holes have already been formed, one can move the milling tool in one direction along one of the medial line sections to mill the material between the two holes. Again, milling is typically conducted with the milling geometry axis being parallel to the geometry axis of rotation of one or both holes. It should be understood that a third hole can also be formed and still laterally driven by milling.
    [0094] The medial line A can be a projection of the cutting edge 24. The projection can be projected on the plane of cross section P3.
    [0095] It should be understood that the flexure curvature of a refrigerant outlet can be configured to correspond to the curvature of a cutting edge, using a projection of a cutting edge to form a medial line of the refrigerant outlet .
    [0096] Although the subject of the present invention has been described with reference to one or more specific embodiments, the limiting description of the subject of the present invention of the embodiments shown. It is noted that various modifications may occur for those skilled in the art that, although not specifically shown here, are nevertheless within the scope of the subject of the present invention.
    权利要求:
    Claims (17)
    [0001]
    1. Cutting tool (10, 36, 43) comprising a refrigerant channel (22) having at a front end, a refrigerant outlet (24, 26A, 28A, 30A, 32A, 34A) formed with an elongated shape, in that a medial line (A, 26C, 28C, 30C, 32C, 34C), extending longitudinally along the refrigerant outlet (24, 26A, 28A, 30A, 32A, 34A), comprises a flexion (60, 26C, 28G , 30D, 30E, 30F, 32F, 32G); wherein the cutting tool (10) additionally comprises a cutting element (16) having a cutting edge (16A), characterized by the fact that: in a front view, the flexion curvature (60) of the medial line (A ) is configured to match the curvature of the cutting edge (16A).
    [0002]
    Cutting tool (36) according to claim 1, characterized in that the cutting tool (36) additionally comprises a cutting tool body (38) formed with the refrigerant outlet (32A).
    [0003]
    Cutting tool (43) according to claim 1, characterized in that the cutting tool (43) additionally comprises a cutting tool body (43B), having a coolant dispensing housing (43C) mounted on the same; the refrigerant dispensing housing (43C) comprising an extreme outlet surface (43D) formed with the refrigerant outlet (26A).
    [0004]
    Cutting tool (10) according to claim 1, characterized in that the cutting tool (10) additionally comprises a cutting tool body (12), having a coolant dispensing housing (14A) mounted on the same, and an elongated cutting tool nozzle (14B) retained by the coolant dispensing housing (14A); the cutting tool nozzle (14B) comprising an outlet end (20B) formed with the refrigerant outlet (24).
    [0005]
    Cutting tool (10, 36, 43) according to any one of claims 1 to 4, characterized in that the apex (26D) of the refrigerant outlet (26A) is further away from a cutting section (43B1) than the edges 26E of the refrigerant outlet (26A) adjacent to the apex (26D).
    [0006]
    6. Cutting tool (10, 36, 43) according to claim 1, characterized in that the coolant outlet (24) of the middle line (A) is configured to correspond to the curvature of the cutting edge (16A), wherein a projection of the cutting edge (16A) corresponds in shape to at least the flexion (60) of the medial line (A).
    [0007]
    7. Cutting tool (10, 36, 43) according to claim 1, characterized in that the cutting tool (10) comprises only a single refrigerant outlet (24) configured to dispense fluid on an inclined surface (32D ) of the cutting element (16).
    [0008]
    Cutting tool (10, 36, 43) according to any one of claims 1 to 7, characterized in that it additionally comprises an additional refrigerant outlet (42) having an elongated shape.
    [0009]
    Cutting tool (10, 36, 43) according to any one of claims 1 to 7, characterized in that the cutting tool (10) only comprises a single refrigerant outlet (24).
    [0010]
    Cutting tool (10, 36, 43) according to any one of claims 1 to 9, characterized in that a flow path (FP) through the coolant channel (22) comprises at least one bending (Bl, B2).
    [0011]
    Cutting tool (10, 36, 43) according to any one of claims 1 to 10, characterized in that the cutting tool (10) comprises side wall edges (22D) projecting into the coolant channel (22).
    [0012]
    Cutting tool (10, 36, 43) according to any one of claims 1 to 11, characterized in that the refrigerant outlet (24) comprises concave side edges (24A, 24B), each having first and according to extreme points (24A1, 24A2, 24B1, 24B2), a convex shaped lower edge (24C) extending between the first extreme points (24A1, 24B1) of the concave shaped lateral edges (24A, 24B), and an edge concave shape upper part (24D) extending between the second extreme points (24A2, 24B2) of the concave shape side edges (24A, 24B).
    [0013]
    13. Cutting tool (10, 36, 43) according to any one of claims 1 to 11, characterized in that the shape of the refrigerant outlet (24) is selected from the group including an arc shape (26A), a V-shape (28A), M-shape (30A), or S-shape (32A).
    [0014]
    Cutting tool (10, 36, 43) according to any one of claims 1 to 13, characterized in that the refrigerant outlet (24) comprises at least one curved edge (24A, 24B, 24C, 24D).
    [0015]
    Cutting tool (10, 36, 43) according to claim 13, characterized in that the refrigerant outlet (24) comprises only curved edges (24A, 24B, 24C, 24D).
    [0016]
    16. Cutting tool (10, 36, 43) according to any one of claims 1 to 15, characterized in that the refrigerant outlet (34A) has a varying magnitude (Ml, M2) along its length length.
    [0017]
    17. Cutting tool (10, 36, 43) according to any one of claims 1 to 16, characterized in that the refrigerant outlet (24, 26A, 28A, 30A, 32A, 34A) is defined within an edge to be continued.
    类似技术:
    公开号 | 公开日 | 专利标题
    BR112012028048B1|2020-10-20|snipping tool
    BR102015011228B1|2021-02-17|turning tool holder and cutting tool insert
    BR112013006947B1|2020-07-28|removable cutting insert and cutting tool
    BR112014014283B1|2021-03-30|CUTTING INSERT, AND, CUTTING TOOL
    CN105212802B|2019-11-01|Knife rest with the delivering of improved internal coolant
    EP2952278A1|2015-12-09|Drill
    BRPI0813304B1|2020-10-13|DRILL HEAD
    BR102012029725A2|2015-01-06|CUTTING ASSEMBLY WITH IMPROVED COOL DELIVERY
    KR20130133141A|2013-12-06|An indexable drill insert
    JP2014172167A|2014-09-22|Rotary cutting tool, replaceable cutting insert, and method of manufacturing replaceable cutting insert
    BRPI0922831B1|2021-01-19|ball nose end mill and cutting insert for ball nose end mill
    BR112014023764B1|2020-07-07|cutting insert
    WO2011132686A1|2011-10-27|Gun drill
    BR112014018321B1|2021-07-13|CUTTING TOOL HAVING A FLUID DISPENSING SYSTEM, AND METHOD OF PROVIDING COOLING FLUID IN A CUTTING TOOL
    KR102307031B1|2021-10-05|Cutting tool having a cooling chamber and tool body with integrally formed coolant deflection
    EP3632648A1|2020-04-08|Injection molding die, resin member, and method for producing resin article
    US10710165B2|2020-07-14|Metal cutting tool holder comprising fluid passages
    BRPI0715836A2|2013-07-23|flow block
    ES2657459T3|2018-03-05|Closing device
    BR112019015347A2|2020-03-10|INTERCHANGEABLE, UNILATERAL CUTTING INSERT AND CUTTING TOOL
    JP6874292B2|2021-05-19|Part-Time Job
    JP2012206205A|2012-10-25|Drill holder, and cutting-edge replaceable drill
    EP3632649A1|2020-04-08|Injection molding die, resin member, and method for producing resin article
    CN206066250U|2017-04-05|A kind of edge emery wheel
    US20200114559A1|2020-04-16|Injection mold, resin member, and method for producing resin product
    同族专利:
    公开号 | 公开日
    PL2580011T3|2017-10-31|
    US20110305531A1|2011-12-15|
    WO2011154933A1|2011-12-15|
    IL222905A|2016-09-29|
    KR101774614B1|2017-09-04|
    EP2580011B1|2017-05-24|
    CN102933340B|2016-01-06|
    KR20130080012A|2013-07-11|
    RU2012157220A|2014-07-20|
    CN102933340A|2013-02-13|
    IL206283D0|2010-11-30|
    US8696253B2|2014-04-15|
    ES2636933T3|2017-10-10|
    JP5746332B2|2015-07-08|
    CA2802001A1|2011-12-15|
    BR112012028048A2|2016-08-02|
    JP2013528123A|2013-07-08|
    CA2802001C|2018-02-13|
    PT2580011T|2017-07-07|
    EP2580011A1|2013-04-17|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2405298A|1944-04-20|1946-08-06|Fleischer John|Twist drill|
    BE509890A|1951-05-29|1900-01-01|
    US3313186A|1964-07-02|1967-04-11|Utd Corp|Method of affixing a tube to a tool body|
    US3606560A|1970-07-01|1971-09-20|Morton Mcclennan|Drill|
    JPS57189701U|1981-05-29|1982-12-01|
    US4621547A|1983-02-28|1986-11-11|Yankoff Gerald K|Method and apparatus for machining|
    US5775854A|1991-09-27|1998-07-07|Iscar Ltd.|Metal cutting tool|
    US6045300A|1997-06-05|2000-04-04|Antoun; Gregory S.|Tool holder with integral coolant passage and replaceable nozzle|
    US6299388B1|2000-02-03|2001-10-09|Slabe Machine Products Company|Universal tool holder collant delivery adapters|
    JP2002346810A|2001-05-25|2002-12-04|Sumitomo Metal Ind Ltd|Cutting tool|
    US7195428B2|2002-11-11|2007-03-27|Ford Global Technologies, Llc|Gundrill|
    DE20219753U1|2002-12-19|2004-04-22|Gühring, Jörg, Dr.|Gun drills|
    JP2005081459A|2003-09-05|2005-03-31|Tungaloy Corp|Cutting tool with oil hole|
    IL163679A|2004-08-23|2009-02-11|Gil Hecht|Gun-drill|
    US20070283794A1|2006-06-13|2007-12-13|Giannetti Enrico R|Machine tool holder having internal coolant supply and cutter retaining and coolant distribution cutter insert retaining clamp assembly|
    SE530581C2|2006-11-28|2008-07-08|Sandvik Intellectual Property|Chip separation tool and basic body comprising two channels for a fluid|
    US7883299B2|2007-01-18|2011-02-08|Kennametal Inc.|Metal cutting system for effective coolant delivery|
    US8328471B2|2007-01-18|2012-12-11|Kennametal Inc.|Cutting insert with internal coolant delivery and cutting assembly using the same|
    US8439608B2|2007-01-18|2013-05-14|Kennametal Inc.|Shim for a cutting insert and cutting insert-shim assembly with internal coolant delivery|
    US20080276771A1|2007-05-07|2008-11-13|Air Products And Chemicals, Inc.|Method For Hardening A Machined Article|
    IL197095A|2009-02-17|2013-02-28|Iscar Ltd|Cutting tool having a retractable nozzle|US9101985B2|2007-01-18|2015-08-11|Kennametal Inc.|Cutting insert assembly and components thereof|
    US8827599B2|2010-09-02|2014-09-09|Kennametal Inc.|Cutting insert assembly and components thereof|
    US8454274B2|2007-01-18|2013-06-04|Kennametal Inc.|Cutting inserts|
    IL197095A|2009-02-17|2013-02-28|Iscar Ltd|Cutting tool having a retractable nozzle|
    DE102013111771A1|2012-10-31|2014-04-30|Kennametal Inc.|Cutting insert assembly for use during chip forming removal of material from insert-chip interface, has locking pin with pin bore opening to boss bore of plate, so that coolant flows into boss bore and to interior passage of plate|
    US8826786B2|2012-02-23|2014-09-09|Iscar, Ltd.|Cutting tool with internal fluid delivery system|
    US9434011B2|2013-01-25|2016-09-06|Kennametal Inc.|Coolant spray nozzle and cutter with coolant spray nozzle|
    US20140270999A1|2013-03-16|2014-09-18|Hsien-Jen Huang|Coolant delivery device for cutting tools|
    US9387537B2|2014-03-28|2016-07-12|Kennametal Inc.|Wedge clamp with fluid port|
    DE102014119295A1|2014-12-19|2016-06-23|Kennametal Inc.|Tool holder for a cutting insert and method for producing the tool holder|
    JP6550759B2|2015-01-23|2019-07-31|三菱マテリアル株式会社|Part-Time Job|
    WO2017003342A1|2015-06-30|2017-01-05|Seco Tools Ab|A cutting tool with a nozzle with a coolant channel|
    EP3192600B1|2016-01-18|2022-03-09|Sandvik Intellectual Property AB|Metal cutting tool holder comprising fluid passages|
    WO2017129413A1|2016-01-29|2017-08-03|Seco Tools Ab|A cutting tool|
    JP6848160B2|2016-05-19|2021-03-24|住友電工ハードメタル株式会社|Cutting tools|
    JP6874292B2|2016-07-21|2021-05-19|三菱マテリアル株式会社|Part-Time Job|
    CN109641280B|2016-08-19|2020-08-14|京瓷株式会社|Cutting tool and method for manufacturing cut product using same|
    KR101918535B1|2017-05-16|2018-11-14|한국야금 주식회사|Cutting insert cooling apparatus|
    US10300532B2|2017-06-26|2019-05-28|Kennametal Inc.|Clamp for tool holder|
    TWI640376B|2017-06-30|2018-11-11|黃憲仁|Improved structure of a tool holder|
    DE102017115668A1|2017-07-12|2019-01-17|Kennametal Inc.|Method for producing a cutting tool and cutting tool|
    DE102017122054A1|2017-09-22|2019-03-28|Kennametal Inc.|Cutting tool and method for producing a cutting tool|
    US10632548B2|2017-11-20|2020-04-28|Iscar, Ltd.|Triangular-shaped indexable cutting insert having recessed side surfaces and rotary cutting tool|
    JP6433034B1|2017-12-12|2018-12-05|株式会社塩|Nozzle, nozzle module and machine tool equipped with the same|
    KR102169544B1|2018-12-28|2020-10-23|한국야금 주식회사|Cutting tool|
    DE102020102007A1|2020-01-28|2021-07-29|Zcc Cutting Tools Europe Gmbh|Tool holder|
    EP3903973A4|2020-04-27|2021-11-03|Seco Tools Ab|A nozzle for providing coolant fluid to a cutting edge of a metal cutting tool and a metal cutting tool|
    法律状态:
    2018-12-26| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-09-17| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-05-05| B06A| Notification to applicant to reply to the report for non-patentability or inadequacy of the application [chapter 6.1 patent gazette]|
    2020-09-15| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2020-10-20| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 25/05/2011, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    IL206283|2010-06-10|
    IL206283A|IL206283D0|2010-06-10|2010-06-10|Cutting tool and nozzle therefor|
    PCT/IL2011/000406|WO2011154933A1|2010-06-10|2011-05-25|Cutting tool and coolant outlet of special shape|
    [返回顶部]