• 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:
    The invention relates to a machine tool industry, can be used for machining products with rotary tools, such as grinding, milling, and allows increasing productivity and precision of processing. For this, in a known machine for processing with rotary tools, the support is made in the form of a turret 18, installed with
    公开号:SU1716959A3
    申请号:SU884356313
    申请日:1988-08-29
    公开日:1992-02-28
    发明作者:Мюллер Ханс
    申请人:Гюринг Аутоматион Гмбх Унд Ко (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to a machine tool industry and can be used to process products with rotary tools, such as grinding, milling and
    DR-
    The purpose of the invention is to increase the productivity and accuracy of processing.
    Figure 1 shows the proposed machine, a general view; Figure 2 is the same, Top View (for simplicity, only one unified power head is shown); Fig. 3-unified power head, front view; in fig. 4-7 - various unified power solovki; Fig. 8 shows the power supply system; 9 shows a device for clamping an article on an enlarged scale; in fig. 10 shows a second variant of the device for clamping the product; Fig. 11 is the third option for clamping the article.
    The machine contains a node 1 carrying the product, and a node 2 carrying the tool. Each of these units has a frame 3 and 4, respectively. On frame 3 of node 1, the first movable caliper 5 is installed with the ability to move in a horizontal plane along the first main axis X. On the first movable caliper 5 there is a rotary table 6 of the product with a corresponding vertical axis of rotation A On the rotary table 6 of the product there is a cross table 7, including a longitudinal support 8 and a transverse support 9 with corresponding axes of movement U and V. On the cross table 7 there is a fixture 10 for clamping the product, removing bzhennoe clamping device. In Fig. 1, the device 10 for clamping an article is provided with a clamping device 11, which can be mounted around a vertical axis F. This vertical axis F is a software-controlled degree of freedom that can be implemented as a software-controlled executive axis or the form of the axis programmed simultaneously with other axes independently of them. The clamping cams 12 clamp the product 13 in the form of a cutting punch.
    The clamping device 11 (Fig.9) is fixed on the device 10, preferably with the ability to change so that you can handle as many as possible a wide variety of products. Processed on a multi-machine tool product 13 is shown in more detail in Fig.9. In this case we are talking about the product, which can be processed in rough and clean in one set-up with program control.
    The assembly 2 includes a vertical support post 14 mounted on the base 4 and located in a horizontal plane at a certain distance from the turntable 6 of the article. At the upper end of the support post 14, a guide member 15 is provided for the second movable support 16. The guide member 15 is mounted for movement from a drive (not shown) along the vertical second main axis Y. The support 16 has due to the presence of the guide member 15 movement along the third main axis of movement Z, perpendicular to the first and second main axes.
    On the second movable slide 16, a table 17 is installed to place a turret 18 with a vertical axis of rotation C on it. This vertical axis of the rotation C is a program-controlled actuating axis that serves to separate the shoulders 19-22 of the turret 18 could be brought with time control to the working position corresponding to the working position of the product 13.
    On each shoulder of the turret, an instrument rotary table 23 is installed, with the axis of rotation. In these rotary tables, the vertical axis of rotation C is crossed at a right angle. From the revolver head 18. In FIG. 1, the revolver head has four rotary tables 23, the axes of rotation In which they intersect at one point on the vertical axis of rotation C of the turret.
    On each turntable 23 of the tool, one separate element 24 is preferably fixed, detachably, for various standardized power heads 25, for example, pintles and / or other power heads, for example gauges, manipulators, and the like. In the embodiment of the device shown in Fig. 1, all the unified power heads are quill bearing the milling cutter 26, the measuring probe 27, the grinding wheel 28 and the drill bit 29. The tools of the various unified power heads are designed and selected in such a way that Different power heads could be used to perform various technological operations on the product 13. The grinding wheel 28 may be, for example, a grinding wheel with a variable profile, consisting of a metal substrate and boron nitride layer carried on it with a cubic lattice.
    The base elements 24 have an identical shape and are installed in the guides 30. For example, the mounting spindles 31 serve to move the clamping elements 24 in the guides 30.
    Common to all standardized power heads, regardless of whether they are quilts or other power heads, such as gauges, manipulators, devices for processing a laser beam, etc., is that they can be oriented along the fourth translation axis W in the corresponding base element 24 and / or by moving to. the corresponding guide 30, and the fourth translation axis W intersects at a right angle the corresponding rotation axis B of the corresponding turntable 23 of the tool. The fourth translation axis W can be performed either as an axis that serves only for adjustment, or as a software-controlled executive axis or an axis that is software-controlled simultaneously with other axes independently of them, due to which for example, drilling processes using quill 25.
    In addition, an additional software-controlled rotation axis E (Figures 1 and 4) can be provided in the area of one or more pintles, which can function as an actuating axis or axis that is controlled simultaneously with other axes independently of them. In the latter case, even the cutting of the internal
    threads using an appropriate unified power head.
    The above machine design with linear axes X, Y, and Z, with axes A, B, and C and linear axes U, V, and W, which are exclusively software-controlled axes, represents the possibility processing of products of any configuration from the blank to the finished product controlled by the program without re-fixing them. At the same time, the number is simultaneously independent of one another of software-controlled axes and their spatial coordination contributes to a considerable simplification of programming.
    In Figures 2 and 3, the turret 18 is depicted in a simplified form, and only the tool that is currently in operation is shown. In FIG. 2, the turret 18 is in the position shown in FIG. 3, the turret 18 is rotated 90 ° clockwise. A feature of the invention is that due to the presence of the translation axis W and the specific location of this axis, the tool, for example the milling cutter 26, can be positioned so that the point of engagement P of the tool with the product can be positioned on one side on the axis of rotation of the turntable 23 tool, and on the other hand, on the vertical axis of rotation A of the turntable 6 of the article. This positioning is also facilitated by the fact that the second movable caliper 16 is mounted on the support post 14 so that there is enough free space in relation to the cross table 7 to displace the engagement point P of the milling cutter 26 from the article 13 to the axis A and position the engagement point P on this axis. It turned out that the programming of the machine can be greatly simplified and the machining accuracy can be further increased if the programming of the individual drive devices aligned with the above axes starts from the so-called zero point, which is the intersection point of the A and B axes and at the same time the engagement P of the tool with the correspondingly oriented product. The special feature of npeMMyiMectso is that when the unified power head 25 rotates around the rotation axis B, the engagement point P with the cutter 26 does not change its position. As a result, not only the complex steps of the program fall away.
    to accurately determine the position of the engagement point P relative to other axes, thereby significantly reducing programming costs, but it is also possible to program a unified power head provided for the next operation, starting from the same starting point or zero point, thereby improving machining accuracy .
    This connection is visible from FIG. 3, in which the turret 18 is shown in a different position. The tool engagement point P, namely the drill 29 with the product, can be shifted due to the presence of an additional degree of freedom — along the fourth translation axis W until the intersection point of the axes A and B is reached so that to program the drilling tool 29 put into operation after using the milling tool 26, the same starting point or zero point can be used, so that when the unified power head 25 rotates around the axis B, no complex coordinate transformation is necessary.
    The processing accuracy is enhanced by the fact that for individual power heads inserted sequentially in engagement with the product, you can use the same initial engagement point with the product as the initial programming point. This created the condition for equipping the turret also with gauges and / or manipulators and also presented the possibility of a corrective effect on the processing process by creating feedback between the gauge and the unified power head and, thus, the possibility of machining the product one programmed cycle before achieve the desired tolerance area. The accuracy of processing is further enhanced by the fact that the presence of a large number of software-controlled axes, independently of each other at the same time, for a certain technological operation allows one to choose from a large number of axes of motion the most advantageous axes, i.e. axes with which you can control as few axes as possible with mutual agreement.
    The head depicted in Fig. 6 includes a probe 27, which moves toward the article 13 for the purpose of a size check or after performing each individual operation, or performing all operations. To program the measurement system again
    the point of engagement (in this case, the point of contact) of the probe with the surface of the product being machined to achieve the desired dimensions. For programming the movement of the probe, the point of engagement is transferred to the above-mentioned initial or zero point of programming.
    The described machine design not only facilitates the programming of individual technological operations and thus contributes to the increase of the profitability of the machining process, but creates conditions for the use of superpowerful tools, such as milling and high-speed grinding, during the use of which the machine must take considerable effort, as the cutting forces act inside machine guides, and the main components of the cutting forces are directed toward the axis of the turret.
    For a large number of standardized power heads of the machine, it is necessary to use a complex power system, i.e. hydraulic system pipelines and electrical system lines. For this, a central power supply system is provided above the turret head, some parts of which are depicted in FIG. Reference numeral 32 denotes a support ring mounted on the body 33 of the machining center, shown only in outline. A slide plate 34 is supported on the support ring 32, from the upper side of which the wires to the cables (not shown) extend. Sliding plate 34 is provided with holes for control power lines 35. A coaxial extension 36 is provided on the underside of the skid plate 34, serving as a distributor of hydraulic piping 37. Radial support arms 38 are further provided for directing control power lines 35 and hydraulic piping 37 to separate unified power heads of the machine.
    A sliding plate 34 with a coaxial extension 36 is connected to a turret 18. A telescopic connecting shaft 39 is provided for this, including a universal joint (not shown) for gripping the sliding plate 34 regardless of the position of the second movable support 16. This energy supply provides the possibility of simultaneous use of the rotational movement of the sliding plate 34 to control the hydraulic travel valve of the hydraulic pipelines 37.
    For example, the rotational movement of the turret 18 can be used to control only the hydraulic pipe 37 corresponding to the arm of the turret facing the product.
    The individual switching steps of the turret preferably take place in such a way that the revolving head turns first step by step in one direction only by 270 °, and then step by step in the opposite direction by more than 270 °, entering into engagement with the product and the rest unified power heads. This eliminates the need for using slip rings, which in the case of indirect software control from the computer are sources of error.
    In order to maximize the positioning accuracy of all the power heads that are sequentially in / into engagement with the product, it is advantageous to equip the turret head with an additional swivel mechanism (not shown). This further provides the advantage that the turret servo can be used independently of the maximum cutting forces that occur.
    FIG. 10 shows another variant of the device 10 for clamping the product, which can be mounted on the back table 7 with the possibility of being removed. To install this device, a main plate 40 is provided on the crescent table 7, a rotary plate 41 with an axis of rotation F is installed on the rotary plate 41. A clamp 42 is mounted on the rotary plate 41 for clamping the article. The clamping device is the clamp 43. Thus, the device for clamping the product (FIG. 10), as well as the devices for clamping the product shown in FIGS. 1 and 9, has an additional software-controlled degree of freedom rotation axis F, which can be oriented in space and in another direction. However, the axis of rotation F must be oriented in space so that this axis can be brought to the position in which it runs parallel4 with respect to one of the major axes X, Y or Z.
    Another variant of the device for clamping the product is shown in FIG. 11. The product in the form of a block, which should be provided with a relief structure, is pressed by the clamping cams 44 to the clamping block 45, on both sides of which are supporting blocks 46 for the rotation axis D, fixedly mounted on the supporting walls 47. Supporting walls 47 are mounted on the support block 48 The D axis, which may be a quotation axis, or a programmed-controlled actuating axis, or an axis that is software-controlled simultaneously with other axes independently of them, is oriented in such a way that it passes in the middle of the product, example along the main axis of symmetry. The carrier block 48 is mounted on the cross table 7 so that the axis of rotation D can coincide with one of the software-controlled axes of the machine (in the embodiment shown in FIG. 11 with the main axis Z) so that the programmed cycle can be simplified when working on working surfaces complex configuration and reduce the number of tools.
    The invention is not limited to the examples shown in the figures. Thus, the product can be processed with other tools, such as finger grinding wheels, thread-cutting tools, or laser beam processing tools. In addition, the turret can be equipped with other standardized power heads, such as tools for loading and unloading the product, tools for changing the position of the workpiece or manipulators. Finally, the clamping members 24 can be equipped with adapters to facilitate the attachment of various power heads.
    The turret head may have more or less than four shoulders. The number of arms of the turret depends on the main task of the machine. If, when processing a product of complex configuration, it is necessary to replace the power heads very often, it is advantageous to limit the number of arms of the turret to three. However, if a multioperational machine is provided for large-scale production, it is advantageous to use the four arms of the turret, since it turned out that with this number of arms it is possible to carry out all the operations in one set with suitable tools. Therefore, it is advantageous to carry out all the arms of the turret of the proposed machine of the same structure so that the temporary use of different power heads is not limited to a specific structure.
    权利要求:
    Claims (15)
    [1]
    1. Machine for processing products rotary tools containing
    the unit carrying the product and made in the form of a first support mounted on the frame with the possibility of moving in the horizontal plane along the main axis X with a table rotatable about the vertical axis arranged on it, carrying a cross table for placing the product whose longitudinal and transverse supports are mounted so that they can be moved along mutually perpendicular axes, as well as the assembly carrying the tool and made in the form of an upright support article located at a distance from the rotary table Ci, on the upper end of which is mounted a second caliper mounted to move along the mutually perpendicular second and third main axes Y and Z, perpendicular to the first main axis X, and intended to accommodate a support, on which the axis can be rotated about an axis, perpendicular a second main axis Y, a turntable for fastening the power head with the tool, all of which said axis of movement is autonomously connected to a programmed control system, characterized in that, in order to increase productivity and accuracy of processing, the support is made in the form of a revolving head mounted rotatably around an axis coinciding with the second main axis Y and associated with a programmed control system, and the machine is equipped with at least one additional rotary axis mounted on the revolver head tool table with the axis of rotation associated with the software control system and the intersecting axis of rotation of the turret and the first tool rotary table at one point, and kzhe fixed on the turntable based elements, and at least; one additional power head, wherein the power heads are mounted in the clamping elements and each of them is mounted for movement along an axis perpendicular to the axis of rotation of the corresponding turntable of the tool.
    [2]
    2. Machine according to claim 1, characterized in that the clamping element is installed with the possibility of a connector.
    [3]
    3. Machine on PP. 1-2, characterized in that the axis of longitudinal movement of the power head is autonomously connected with the program control system. 4. Machine on PP. 1-3, distinguishing
    [4]
    so that at least the axis of rotation of one of the power heads is associated with a software control system.
    [5]
    5. Machine on PP. 1-4, from l and h yushchi y-so that it is supplied with replaceable tightening
    device mounted on the cross table.
    [6]
    6. Machine on PP. 1-5, characterized in that the clamping device is mounted for rotation around an axis coinciding with the main axis of the product and associated with the software control system.
    [7]
    7. Machine on PP. 1-6, characterized by the fact that it is supplied with power supply
    system located above the turret.
    [8]
    8. Machine on PP. 1-7, characterized in that as a power head
    A device for loading and unloading the product is provided.
    [9]
    9. Machine on PP. 1-8, characterized in that a device for rotating the article is provided as a power head.
    [10]
    10. Machine on PP. 1-9, exc and chu yu shchi y- so that the measuring device is provided as a power head.
    [11]
    11. Machine on PP. 1-10, about tl and h and yu shch and with the fact that as a power
    heads provided grinding head, mostly speed.
    [12]
    12. Machine on PP. 1-11, differing from the fact that as power heads
    milling power head and / or drilling power head are provided, and / or. threadbore power head.
    [13]
    13. Machine on PP. 1-12, characterized in that as a power head
    provided by HOLOEKZ for laser beam treatment.
    [14]
    14. Machine on PP. 1-13, characterized in that the turret head has four arms, on each of which
    one base piece is installed for the corresponding power head.
    [15]
    15. Machine on PP. 1-14, characterized in that a device for dressing grinding wheels is provided as a power head.
    9Ј
    No. U
    & py
    / g
    tj-tntf)
     / g
    6969III
    f3
    Schigya
    ten
    9igM
    43
    FIG. eleven
    类似技术:
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    同族专利:
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    EP0305735B1|1993-11-24|
    JPS6471636A|1989-03-16|
    DE3885819D1|1994-01-05|
    ES2047005T3|1994-02-16|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE3729162A|DE3729162C2|1987-09-01|1987-09-01|
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