TWI587952B - Improvement of a coupling device of a jig - Google Patents

Description

Processing fixture connection device improvement

The present invention relates to a connecting device for a processing machine, and more particularly to an improved processing tool connecting device which can perform a simple detecting operation after the processing jig is assembled to ensure processing precision and improve processing safety.

According to the general processing machine, a processing jig for fixing the workpiece is provided to facilitate the processing of the workpiece, and the processing jig has many kinds of structural forms due to different processing methods and uses. The "coupling device for the electric discharge machining fixture" shown in the invention patent No. I318149 is a conventional processing jig connecting device, and the jig for fixing the workpiece is provided with a pulling bolt, which is a hollow pipe of the base. Entering the hollow action portion of the piston seat, introducing the pressurized air through the first air pressure pipe and the second air pressure pipe to cause axial movement of the piston seat against the spring. When the piston seat moves up, the bead body of the air acting portion is The concave arc ring groove located in the ring seat is guided by the arc guide portion, and is pushed by the inner side wall of the ring seat to directly clamp the action position of the pull bolt, when the piston seat is under the piston seat When moving, the bead of the hollow action portion returns to the concave arc ring groove of the corresponding ring seat, so that the limited range of the bead body has a movable space between the concave arc ring groove, so that the pull bolt can be separated from the hollow action portion. The clamping of the beads. Therefore, after the workpiece is processed, it is convenient to remove the workpiece and the finished workpiece, and replace and fix another workpiece to be processed, so as to shorten the time for the machine to stop waiting for the workpiece to be replaced, and improve the processing machine. Plus Work efficiency.

However, the conventional processing tool connecting device has a ring seat embedded in the stage ring groove of the base, and is fastened by a buckle ring on the side wall of the stage ring groove, so that the pull bolt is hollowed from the base. When the hollow action portion inserted into the piston seat is clamped and connected by the beads, the detection action of whether the pull bolt is actually inserted into the positioning cannot be performed. If the pull bolt is not completely inserted into the positioning, the machining precision is not only affected, but also the machining process is easy. In the middle, the pull bolt and the coupling device are separated, and there are safety concerns.

The inventors have in view of the conventional processing jig connecting device that when the pull pin is inserted into the coupling device, the detecting action cannot be performed, and thus the pulling pin is not completely inserted into the positioning state, which affects the processing precision and existence. The safety concerns are based on the idea of design and design, after many discussions and trial sample tests, and many corrections and improvements, the invention is finally introduced.

The invention provides an improvement of a processing jig connecting device, comprising: a processing jig and a connecting device, wherein the processing jig is used for fixing a workpiece, and the center position is provided with a pull bolt, the connecting device comprises: a body, a piston and a ring seat, wherein the seat body has opposite first and second faces, a hollow pipe is disposed at a center of the first face, and the hollow pipe is provided with a ring groove in a direction of the first face, the ring groove having a diameter larger than the hollow pipe The diameter of the second side of the seat body is provided with a sipe-shaped sliding groove, and the bottom of the groove of the 滑-shaped chute is provided with a plurality of first concave holes, the plurality of first concave holes are for arranging one end of the plurality of springs, and one end of the piston is formed a wide head portion, a hollow action portion at the center of the wide head portion for inserting a pull bolt for processing the jig, and the hollow action portion is provided with a plurality of limit holes at a radial position for the plurality of beads to be accommodated therebetween And preventing the beads from falling toward the hollow action portion, and the piston Providing a plurality of second recessed holes for positioning the spring struts at the first recessed holes of the corresponding seat body, the ring seat is sleeved in the ring groove of the seat body, and between the ring seat and the piston An elastic member is disposed such that the ring seat is normally biased by the elastic member toward the first surface of the seat body, and the card is abutted against one side end of the ring groove, and the inner diameter side wall of the ring seat is provided with a concave arc ring groove In order to allow the bead to move in; thereby, the piston can be axially moved to cooperate with the ring seat that is elastically biased by the elastic member, and the bead of the hollow action portion is forced to be clamped and coupled.

The main purpose of the invention is that the ring seat movable sleeve is placed in the ring groove of the seat body, and is elastically biased toward the first surface of the seat body, so that the pull bolt is inserted into the hollow of the piston by the hollow pipe of the seat body. When the inside of the part is clamped and connected by the bead, the weight of the processing jig and the workpiece itself or the force of the workpiece can be used to drive the pull bolt away from the seat body, and whether the pull bolt is actually inserted into the positioning detection action, such as the pull bolt is not completely confirmed. When inserted into the positioning, the pull bolt will be disengaged from the connecting device, thereby ensuring the positioning between the pull bolt and the connecting device, and improving the processing precision and the safety of the processing.

1‧‧‧Processing fixture

1A‧‧‧ pull bolt

2‧‧‧Linking device

10‧‧‧ body

11‧‧‧ first side

12‧‧‧ second side

13‧‧‧ hollow pipe

14‧‧‧ Ring groove

15‧‧‧Chute

16‧‧‧First recessed hole

17‧‧‧ Spring

20‧‧‧Piston

21‧‧‧ wide head

22‧‧‧ hollow action department

23‧‧‧Limited holes

24‧‧‧ beads

25‧‧‧Second recessed hole

30‧‧‧ ring seat

31‧‧‧Flexible parts

32‧‧‧ concave arc ring groove

The first figure is a perspective view of the appearance of the present invention.

The second drawing is a perspective exploded view of the present invention.

The third figure is a cross-sectional view of the plug of the present invention inserted into the connecting device.

The fourth figure is a cross-sectional view of the clamp connection of the pull bolt of the present invention inserted into the joint device.

Fig. 5 is a cross-sectional view showing the plug of the present invention not inserted into the joint device.

Fig. 6 is a schematic view showing the operation of the piston of the present invention in which the pull bolt is not actually inserted into the joint device.

The seventh figure shows that the piston of the present invention is not inserted into the connecting device and the piston is moved by the seat to indicate Figure.

The eighth figure is a schematic view of the action of the last plug of the present invention when it is inserted into the connecting device and is separated from the connecting device.

Referring to the first, second, third and fourth figures, the present invention is a modification of a processing jig connecting device, comprising: a processing jig 1 and a connecting device 2, wherein the processing jig 1 is used for The first workpiece 11 and the second surface 12 are provided. A hollow duct 13 is disposed in the center of the surface 11. The hollow duct 13 is provided with a ring groove 14 in the direction of the first surface 11. The diameter of the ring groove 14 is larger than the diameter of the hollow pipe 13, and the second surface 12 of the block body 10 is provided with a a hollow chute 13 and a ring-shaped slot 14 are connected to each other. The bottom of the slot of the serpentine chute 15 is provided with a plurality of first recessed holes 16 for receiving one end of the plurality of springs 17. The piston 20 is disposed in the trunk-shaped chute 15 and the hollow duct 13 of the seat body 10, and is movable and axially movable. The piston 20 has a wide head portion 21 at one end and a hollow action portion 22 at the center of the wide head portion 21. The sleeve 1 is inserted into the hollow pipe 13 of the seat body 10 for inserting the pull bolt 1A of the processing jig 1 into the hollow portion A plurality of limiting holes 23 are provided in the radial position for receiving the plurality of beads 24 and preventing the beads 24 from falling toward the hollow action portion 22, and the piston 20 is first recessed in the corresponding body 10. The hole 16 is provided with a plurality of second recessed holes 25 for positioning the other ends of the springs 17. The outer diameter of the ring seats 30 is smaller than the inner diameter of the ring groove 14 of the base 10. The inner diameter of the ring seat 30 is larger than the diameter. The outer diameter of the hollow portion 22 of the piston 20 is disposed in the ring groove 14 of the seat body 10, and an elastic member 31 is disposed between the ring seat 30 and the piston 20 to make the ring seat 30 In the normal state, the elastic member 31 is elastically biased toward the first surface 11 of the seat body 10, and the card is abutted against one end portion of the annular groove 14. The inner diameter side wall of the ring seat 30 is provided with a concave arc. The ring groove 32 is provided to allow the beads 24 to move in.

In the implementation, please refer to the third figure and the fourth figure, the processing jig 1 is connected with the connecting device 2, so that the pulling bolt 1A of the processing jig 1 is inserted into the hollow function of the piston 20 by the hollow pipe 13 of the seat 10. The portion 22 is positioned, and the piston 20 is driven by the external force with the spring 17 to be displaced toward the second surface 12 of the seat body 10. At this time, the bead body 24 of the hollow action portion 22 is guided along the concave arc ring groove 32 of the ring seat 30. Sliding, the limiting hole 23 of the hollow acting portion 22 is protruded inwardly, and then the inner side wall of the ring seat 30 is resisted, and the connecting position of the pulling bolt 1A is directly connected to the workpiece to perform precision clamping. machining. When the pull bolt 1A is to be detached, the elastic force of the anti-spring 17 is displaced by the external force of the piston 20 to the first surface 11 of the seat body 10, so that the limiting hole 23 of the hollow action portion 22 and the concave arc of the ring seat 30 are closed. The ring grooves 32 are aligned, so that the beads 24 can be moved to the concave arc ring grooves 32 of the ring seat 30, and the clamping of the pull bolts 1A is released, so that the pull bolts 1A can be pulled outward, and the processing jig 1 is connected. The device 2 is disassembled.

Further, when the pull bolt 1A is not inserted into the hollow action portion 22 of the piston 20 as shown in the fifth figure, the piston 20 is driven by the external force with the spring 17 to be displaced toward the second surface 12 of the seat body 10, The bead body 24 of the hollow action portion 22 is caught between the pull pin 1A and the end edge of the concave arc ring groove 32 of the ring seat 30 as shown in the sixth figure. At this time, the ring seat 30 is positioned by the elastic member 31. Therefore, the bead body 24 of the hollow action portion 22 moves toward the concave arc ring groove 32 of the ring seat 30 as shown in the seventh figure, and pushes the ring seat 30 toward the second surface 12 of the seat body 10 to compress the ring seat 30. The elastic member 31, as shown in the eighth figure, utilizes the weight or force of the processing jig 1 and the workpiece itself to drive the pull bolt 1A away from the seat body 10, and the bead body 24 continues to the concave arc ring of the ring seat 30. The movement of the groove 32 causes the ring seat 30 to continue to push against the second surface 12 of the seat body 10, so that the pull pin 1A and the processing jig 1 are disengaged from the coupling device 2, thereby achieving the detection function.

According to the structure of the above specific embodiment, the following benefits can be obtained: the processing tool connecting device of the present invention is improved, and the ring seat 30 is sleeved in the ring groove 14 of the seat body 10, and is received by the elastic member 31. 10, the first surface 11 is elastically biased, so that the pull bolt 1A can be used when the hollow tube 13 of the base 10 is inserted into the hollow action portion 22 of the piston 20 and is clamped and connected by the bead body 24, and the weight of the processing jig 1 and the workpiece itself can be utilized. Or force the pull bolt 1A to move away from the seat body 10, and perform a simple detection action of whether the pull bolt 1A is actually inserted into the positioning. If the pull bolt 1A is completely inserted into the positioning, the pull bolt 1A remains fixed, and the pull bolt 1A remains When the plug 1A is not completely inserted into the positioning, the pull bolt 1A will be disengaged from the connecting device 2, thereby ensuring the positioning between the pull bolt 1A and the connecting device 2, and improving the processing precision and the safety of the processing.

1‧‧‧Processing fixture

1A‧‧‧ pull bolt

2‧‧‧Linking device

10‧‧‧ body

11‧‧‧ first side

12‧‧‧ second side

13‧‧‧ hollow pipe

14‧‧‧ Ring groove

15‧‧‧Chute

16‧‧‧First recessed hole

17‧‧‧ Spring

20‧‧‧Piston

21‧‧‧ wide head

22‧‧‧ hollow action department

23‧‧‧Limited holes

24‧‧‧ beads

25‧‧‧Second recessed hole

30‧‧‧ ring seat

31‧‧‧Flexible parts

32‧‧‧ concave arc ring groove

Claims (4)

The invention relates to a processing fixture connecting device, comprising: a processing fixture and a connecting device, wherein the processing fixture is used for fixing a workpiece, and the center position is provided with a pulling bolt, the connecting device comprises: a body having a first side opposite to the first side And a second surface of the first surface is provided with a hollow pipe, the hollow pipe is provided with a ring groove in a direction of the first surface, the ring groove has a diameter larger than a diameter of the hollow pipe, and the second surface of the seat body is provided with a hollow pipe and a chute communicating with the ring groove; a piston is disposed in the sliding groove and the hollow pipe of the seat body, and is movable in the axial direction, the piston has a wide head at one end, and a hollow is arranged at the center of the wide head The action part is configured to insert a pull bolt for processing the jig, and the hollow action portion is provided with a plurality of limit holes at a radial position for the plurality of beads to be accommodated therebetween and the bead body is prevented from falling toward the hollow action portion And a ring seat, the movable sleeve is placed in the ring groove of the seat body, and an elastic member is disposed between the ring seat and the piston, so that the ring seat is elastically biased toward the first surface of the seat body when the ring seat is in a normal state. And the card is at the side end of one of the ring grooves The inner diameter of the sidewall of a concave arc of the ring carrier ring groove, to allow for movement into the beads. The processing jig connecting device according to the first aspect of the patent application is improved, wherein the chute of the seat body is a dome shape. The processing jig connecting device according to claim 1 is improved, wherein a bottom of the groove of the sliding groove of the seat body is provided with a plurality of first concave holes, and the plurality of first concave holes are disposed at one end of the plurality of springs, The first recessed hole of the piston corresponding to the seat body is provided with a plurality of second recessed holes for positioning the other end of the spring. The processing fixture connecting device according to claim 1, wherein the outer diameter of the ring seat is smaller than the inner diameter of the ring groove of the base, and the inner diameter of the ring seat is larger than the outer diameter of the hollow acting portion of the piston.