• 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:
    In a modification to the cutter disclosed in UK Patent application No. 20 80 162A, the back-off surface (56) and therefore the inner and intermediate cutting edges (34, 36) are inclined radially inwardly and axially rearwardly at an angle (ab) between +10 DEG (Figure 10) and -3 DEG (Figure 14). In the case of a rapid feed rate producing thick chips which do not bend easily, these angles cause the chips to be directed closer to the vertical to facilitate their entry into the flutes (22). An additional back-off surface (86) on the outer cutting edge (38) is inclined upwardly and rearwardly at a high inclination angle (c) of 40 DEG to 45 DEG to assist in directing the chip cut by the outer edge (38) away from the wall of the hole being cut and reduce the risk of chipping of the cutting edge. <IMAGE>
    公开号:SU1454239A3
    申请号:SU823408190
    申请日:1982-03-25
    公开日:1989-01-23
    发明作者:Дуглас Хоуген Эверетт
    申请人:Эверетт Дуглас Хоуген (US)；
    IPC主号:
    专利说明:

    YU
    Od sb
    The invention relates to the processing of materials by cutting, in particular to cutting tools.
    The aim of the invention is to improve the quality of processing the product and increase the service life of the cutter due to better chip breaking.
    FIG. 1 image: Ken cutter, general view; fig 2 is the same section; in fig. 3 shows section A-A in FIG. 1j in FIG. 4 — the incisor tooth, a partial section in FIG. 5 is a cutter, another variant на in FIG. 6, the same, a cut in FIG. 7 is a tooth, a partial cut; in fig. 8 - lower part of the tool, interacting with the part, section; .on FIG. 9 is a cutter, another variant j in FIG., 10 is a section of the cutter, vertical to the cut in FIG. 11 is the same general view in FIG. 12 cutter area; Fig, 13 - end portion of the cutter; Fig, 14 is a section of the cutter, vertical incision; Fig, 15 - section cutter with detail.
    Q: | The chisel consists of a body 1 and a shank 2, the body has the shape of an inverted cup with side 3 and top 4 walls. On the lower edge of the side wall, a series of cutting teeth 5 are formed, spaced at regular intervals. Spiral grooves 6, adjoining each tooth 5, pass along the outer circumference of the cutter body 1. The grooves from each other are separated by a flat, section 7,
    The sides of the cutter side wall between adjacent teeth 5 form interstices 8. The outer surface 9 of each bridge 8 forms the inner wall of each of the grooves 6. Each groove 6 has a front side wall 10 and a rear side wall 1 1.
    Each tooth 5 (FIGS. 1-4) has three cutting edges 12-14, the cutting edge 12 is spaced some distance from the cutting edge 13 and lies forward in the direction of rotation, and the cutting edge 13 is spaced some distance from the cutting edge: its edge 14 in the direction of rotation. The cutting edge 12 is located at the lower end of the rear surface 15 of the recess 16, the upper edge 17 of the recess 16 is located with a radial tilt outward and upward. The cutting edge 13 is located on the lower edge of the rear surface 18 of the additional recess 19,
    five
    0
    with
    50

    40
    45
    50
    55
    formed in the lintel 8 and adjacent directly to the upper edge 17 of the recess 16,
    The upper edge of the additional recess 19 has a radial bend 20 directed upwards and outwards above the recess 16. The cutting edges 12 and 13 are separated by a protrusion 21 circumferentially circumferentially at the lower edge of the radially inner surface 22 of the additional recess 19. The cutting edge 14 is located on the lower edge the rear side wall 11 of the spiral groove 6 and is separated from the cutting edge 1 3 by a protrusion 23 at the lower edge of the spiral groove 6.
    The bottom surface of each tooth forms two flakes with a back angle of surfaces 24 and 25. In addition, each of these sealing surfaces has an upward slope angle of, for example, 8-10, relative to the corresponding cutting edges around the circumference, which creates the clearance needed for the cutting edges. The two undercut surfaces 24 and 25 form at the intersection the rib 26, which intersects the radially outward cutting edge 14. If the sewing surfaces 24 and 25 can be made so that the rib 26 intersects any one cutting edge, for most cases the design provides the intersection this edge with an outer cutting edge. These surfaces have a slope that provides the axial direction of the cutting edges 12-14 along the radius, as well as their shift both vertically and circumferentially.
    In addition, at the lower edge of the web 8 of each tooth there are two cutting edges 12 and 13. In FIG. 1-9, the radial dimension of the web is greater than the radial depth of the adjacent spiral groove 6. Since the cutting edges 12-14 are circumferentially shifted, when the tool is rotated and inserted into the part, each cutting edge cuts off individual chips,
    In the tool of FIG. 5-8 section of each tooth, corresponding to the depth of the groove, has two cutting edges
    27 and 28, and not one 14. In this case, the width of each cutting edge 27 and
    28 is 1/2 the depth of the recess.
    3
    The cutting edge 28 is circumferentially positioned with a very small shift relative to the cutting edge of the edge 27, whereby these cutting edges form one chip. When entering the part of the cutter (FIG. 9), the cutting edges 12, 13, 27 and 28 cut off four separate chips.
    The annular incisors (FIGS. 10-15) have insignificant differences from similar incisors in FIG. 1-9, mainly the angle of the two cutting edges 12 and 13.
    In the tool of FIG. 10 the angle of inclination of the edges 12 and 13 is


    ten
    and in the tool of FIG. 14 and 15 this
    the same angle at the same edges is minus 3 °. The angle of inclination of this value allows the cutting of chips to be directed closer to the vertical trajectory, as compared to the tool with an angle of inclination of 25 °. In this case, too, a smaller inclination angle is preferable, since this makes it possible to give these cutting edges a positive radial rake angle relative to the inner circumference of the tool. If the radial rake angle of these edges has the greatest positive value (10 °), then each chip cut by such edges is directed somewhat radially outwards and upwards. Even if the angle of inclination is
    minus 3, the chips are still directed vertically upwards, only with a small degree of deformation.
    The annular cutter works as follows.
    When interacting with the surface to be treated, the cutting edge 12 cuts off chips, which are directed to an additional recess 19,
    1. An annular cutter for cutting holes, comprising means for mounting the cutter on a rotating drive element and its body associated with the cutter, having a cylindrical 4Q annular side wall and a number of circumferentially spaced cutting teeth and a number of grooves located at its lower end spaced apart on the circumferential surface of the side wall when
    and then, in the spiral groove 6, bla 5, each tooth is connected to the adjacent godar by tilting the cutting edge and the top-passing along the circumference of the bridge edge 17 and the bending of 20 recesses 16 and 19 in the radial direction.
    Similarly, immediately after cutting by the cutting edge 13, the chips are directed due to the radial inclination of this cutting edge and the bend 20 of the recess, 19 to the adjacent spiral groove 6. Similarly, the chips cut by the cutting edge 14 are directed upwards into the spiral side of the jumper, the tooth is contained 6. Since each cut is pressed at least three elongated strings is relatively narrow radial cutting edges, each of which has a tendency to twist in some of them is located around its circumference.
    which coincides radially with said grooves, and the jumpers themselves are radially adjacent to the grooves, each groove has circumferentially spaced and radially extended anterior and posterior side walls, and an inner wall that is circumferentially elongated
    0
    axial rather than radial coil, the chips are freely directed along the recesses radially outwards. As the paired chips move from each cutting edge axially upwards and radially outward into the spiral groove 6, they tend to intertwine with each other. As soon as the intertwined spirals of the chips come into contact with the wall of the hole, the friction created by them interferes with the rotation of the chip together with the cutter. In this case, the rear side wall 11
    5 spiral grooves 6, in which
    the chips are caught, picks up the spiral chips and pushes them up from the groove.
    Similarly, single or divided chips, cut by the cutting edges 12, 13, 27 and 28, are also directed upward into the spiral groove 6. However, practically after cutting the chips by cutting edges 12, 13 and 27
    25 and directing it into the spiral groove 6; the chips come into contact with the side wall of the hole 29, which is extruded into the part. As a result, the chips are immediately captured by the rear side wall 30 of the spiral groove 6 and pushed upward from the groove.
    thirty
    权利要求:
    Claims (4)
    [1]
    1. An annular cutter for cutting holes, comprising means for mounting the cutter on a rotating drive element and its body associated with the cutter, having a cylindrical annular side wall and a number of circumferentially spaced cutting teeth and a series of grooves disposed at its lower end separated by a circular surface of the side wall,
     each tooth is connected to the adjacent bridge passing along the circumference
    By the side of the web, the teeth contain at least three elongated radial cutting edges, each of which is located around its circumference.
    which coincides radially with said grooves, and the jumpers themselves are located radially adjacent to the grooves, each groove has circumferentially spaced and radially extended front and rear side walls, and an inner wall that extends circumferentially including a radial inner edge, an intermediate cutting edge and at least one radially outer cutting edge, while the inner cutting edge is pushed forward relative to the intermediate edge, and outward - backward relative to the latter in the direction of rotation of the cutter, characterized in that, in order to improve the quality of product processing and increase the service life of the cutter, the inner and intermediate cutting edges are radially formed on the webs, and each is provided with a radial extension smaller than the thickness of the bridges in which the grooves are made, extending upward from each of the inner and intermediate edges of the teeth and directed by the upper end radially outwardly into the radially adjacent canan the surface of each groove is made radially recessed into the lintel with an inclination in the radially outer direction, and the outer cutting edges form at least partially the lower edge of the rear side wall of the adjacent groove, the radial size of each of which is not less than the radial size of the inner and intermediate edges, and the size of the groove around the circumference is larger than the size of the radius.
    [2]
    2. Cutter pop., Characterized in that the thickness of the lintel is greater than the radial depth of the groove
    [3]
    3. Cutter pop, 1, characterized in that each inner and intermediate cutting edge is made with an inclination in the radial direction and axially at an angle of 10 - (- 3) to the horizontal,
    [4]
    4. Cutter according to claim 1, about tl and h and y - y and with the fact that each tooth stands out with four radially directed cutting edges, and two. the outer cutting edges form the lower end of the rear side portions of the adjacent groove.
    fig 1
    /five
    26
    261 Z3
    P
    FIG. 6
    te g 13
     13 11 21 guv es Figure 9
    It
    FIG. 7
    77
    ttg
    72 75 24 74 23
    FIG. Yu
    76
    15
    gz 6
    13
    7J
    FIG. n
    Fig.i
    25
    Fig.13
    n / 3
    rs
    Compiled by V. Zolotev Editor G. Volkova Tehred A. KravchukKorrektor I.Muska
    Order 7307/58
    Circulation 831
    VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5
    ........- m ..------- - - --- - - - -
    production and printing company, Uzhgorod, st. Project, 4
    one
    FIG. one
    Fig.15
    Subscription
    类似技术:
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    同族专利:
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    BG47492A3|1990-07-16|
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    JPS5859712A|1983-04-08|
    AU546136B2|1985-08-15|
    AU8104082A|1983-03-31|
    PL236239A1|1983-03-28|
    NL8200883A|1983-04-18|
    GR77678B|1984-09-25|
    FR2513157A2|1983-03-25|
    BR8201938A|1983-11-16|
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    IT1186680B|1987-12-04|
    PL138978B1|1986-11-29|
    RO83662A|1984-07-17|
    CA1176542A|1984-10-23|
    MX156023A|1988-06-16|
    引用文献:
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    CN102947033B|2010-06-18|2014-12-24|日东工器株式会社|Ring-shaped hole cutter|
    CN108024822B|2015-06-17|2021-07-02|史赛克欧洲控股I有限责任公司|Surgical instrument with ultrasonic tip for fibrous tissue removal|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US30385781A| true| 1981-09-21|1981-09-21|
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