• 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, namely to devices for automatic tool changing in universal vertical boring machines. The purpose of the invention is to reduce overall dimensions by performing a kinematic connection of the gripper 13 of an automatic changer with a drive in the form of a chain transmission, enclosed within and connected with the hollow swivel bracket 9, and a power cylinder, the rod of which is connected to the end of the bracket on column 7. The gripper 13 is mounted on the driven sprocket 16 of the chain transmission and rotates in the direction opposite to the direction of rotation of the spindle to ensure tool change between the spindle head 2 and the tool magazine. nsteyna 9. Column 7 has a drive and is fixed to the console on the desktop 6 of the machine. 4 il. (L
    公开号:SU1727524A3
    申请号:SU884356463
    申请日:1988-09-16
    公开日:1992-04-15
    发明作者:Хоппе Герд
    申请人:Махо Аг (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to devices for automatic tool changing in universal vertical boring machines with programmed control.
    The purpose of the invention is to reduce the size of the device.
    FIG. Figure 1 shows a diagram of a device for changing a tool with paths of movement of a pivot arm and a catch; FIG. 2 is the same side view (sectional bracket); in fig. 3 - the same, in a perspective view when installing the tool in a vertical spindle head; in fig. 4 - installation diagram of the spent tool in the store.
    The device for automatic tool changer is intended for a vertical boring machine, horizontally moving the headstock 1 of which carries at its end a vertical spindle head 2 with a working spindle 3 rotating in it 3. At the end vertical guides 4 of the machine base 5 the worktable 6 with a vertical column cantilever mounted on it 7. On the central pin 8 of the column 7 a hollow horizontal bracket 9 is U-shaped with a bearing assembly 10 .. Bracket 9 have the other side of the same bearing unit 11, in which the horizontal grip 13 is fixed centrally with the trunnion 12. At the upper thin end of the bearing axle 8 rigidly connected to the column 7. there is a chain sprocket 14, around which an endless transmission chain 15 passes. Goal 15 goes around
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    driven sprocket 16, fixed, on the thin end of the pin 12, associated with the grip 13.
    The gripper 13 contains two movable jaws 17 and 18 loaded with a spring 19 in the direction of closing the jaws, this spring extends inside the gripper 13, and there are sloped surfaces on the jaws that, when the tool cone approaches, move the jaws apart, overcoming the action of the spring 19.
    A horizontal console 20 is rigidly fixed to column 7, to which a servo-cylinder 21 is hingedly attached by a rear end, the piston rod 22 of which is pivotally adjacent to the radial one. the protrusion 23, rigidly connected with the possibility of rotation with the bearing node 10 of the bracket 9.
    Next to the spindle head, a tool magazine 25 is horizontally placed on the stand 24, the chain 26 of which, enveloping the driven sprocket 27, carries hollow cylindrical sleeves 28 into which the tool 29 is inserted into the bottom, the tapered shank of which is held in the clamp. The intermediate positions of the bracket 9 are labeled 30-32, the movement path of the trunnion 12 is arc 33, and the tool 29 is arc 34.
    The tool change is performed as follows.
    In each shift operation, the column 7 moves to the shift position, in which the pivotal movements of the parts of the changer do not interfere with other parts of the machine. In this case, the bracket 9 is in the position indicated in FIG. 1 at position 30, for placing the tool into the spindle 3, the bracket 9 is rotated to position 31 by means of a predetermined retraction of the piston rod 22, while the moving jaws 17 and 18 are centered along the central axis of the tool 29 located in the front slot of the magazine laterally, the tapered shank of the corresponding tool 29. Due to the vertical movement downwards of the table 6 with the tool console 29, it is removed from the protective sleeve 28 of the magazine. As soon as the tool shank is completely released from the sleeve 28, a new pivotal movement of the bracket 9 to position 32 (Fig. 1) occurs, and the axle of the trunnion 12 moves along a circular arc 33. This pivotal movement of the bracket 9 is transformed by the chain drive 15 into the pro-posterior pivoting movement of the gripper 13 in which the tool 29 moves with its vertical axis along the arc path 34. The lengths of the bracket 9 and the gripper 13, as well as the parameters of the chain transmission, are chosen so that the jaws 17 and 18
    The tool 29 is guided radially to the axis of the working spindle 3. By vertically moving the column 7 upward, the tool 29 is loaded into the spindle and clamped in it by a tapered shank. Thereafter
    the bracket 9 returns to its original position 30, in which the jaws 17 and 18 are again closed by a spring after they come out of contact with the tool on the beveled surfaces.
    Removing the machined tool from the spindle, placing it in a free space in the tool magazine, as well as installing the new tool from the magazine into the spindle, is similar.
    The invention is not limited to the embodiment described. For example, column 7 can rotate on the console and be connected to bracket 9, which allows you to hide the servo 21 in the console, which
    also reduces the size. However, in this case, in order to obtain a pivotal movement of the gripper 13 when the bracket 9 is rotated, another transmission is required. You can also use another one instead of servo 21
    a drive unit, such as an electric motor or hydraulic motor.
    权利要求:
    Claims (1)
    [1]
    The invention The device for automatic tool change in universal vertical boring machines with PU, containing a vertical spindle head, a horizontal tool magazine, located on the side of the spindle head, a work table with a mounted cantilever drive column with a horizontal bracket, made compatible with the column vertical movement and rotation about the vertical axis, and
    the bracket is provided with a gripper, kinematically connected with the drive for moving the latter, characterized in that, in order to reduce the dimensions, the horizontal bracket is hollow and Shape-shaped, and the kinematic connection of the gripper with the drive is made in the form of a chain transmission mounted inside the bracket and connected to him and the power cylinder attached to the end of the bracket connected to the column, with the grip mounted on a chain driven sprocket with the possibility of rotation in the direction opposite to the direction of rotation ronshteyna.
    类似技术:
    公开号 | 公开日 | 专利标题
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    US4122597A|1978-10-31|Tool utilization mechanism
    US4329770A|1982-05-18|Automatic tool changer
    KR810001768B1|1981-11-13|Machine tool with arm automatic tool changer
    同族专利:
    公开号 | 公开日
    CN1031957A|1989-03-29|
    DE3863412D1|1991-08-01|
    US4837919A|1989-06-13|
    DE3731280A1|1989-03-30|
    DE3731280C2|1989-06-29|
    EP0307691A1|1989-03-22|
    EP0307691B1|1991-06-26|
    JPH01109046A|1989-04-26|
    CN1012347B|1991-04-17|
    JPH07112656B2|1995-12-06|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE3731280A|DE3731280C2|1987-09-17|1987-09-17|
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