TW201801847A - Processing jig (1) capable of replacing component to prolong the service life - Google Patents

Abstract

This invention relates to a processing jig, comprising a first mold seat and a second mold seat. The first mold seat has a pulling rod. The second mold seat comprises a base and a sleeve, wherein the base has a through hole; the sleeve can be detachably combined to the base and located in the through hole; and the sleeve has a through hole for the pulling rod to penetrate. Accordingly, if the detachment and installation action of the pulling rod relative to the through hole of the sleeve causes the outer surface of the sleeve or the hole wall of the through hole generating abrasion to affect the alignment stability between the first mold seat and the second mold seat, then a new sleeve can be replaced to continue using, so as to prolong the service life of the processing jig, thereby avoiding cost waste caused by re-purchase processing jig.

Description

Processing jigs (1)

The invention relates to processing jigs; in particular, it refers to a processing jig that can prolong the service life.

Fig. 1 is a schematic diagram of a conventional processing jig. The processing jig 1 includes a first mold base 2 and a second mold base 3. The first mold base 2 includes a workpiece base plate 4 and the workpiece base. A pull rod 5 on the board 4. The second mold base 3 includes a base 6 and a bottom plate 7 coupled below the base 6; wherein, the base 6 is provided with a plurality of balls 8 which are controlled to move, and the base 6 further has A perforation 6a provides the insertion of the tie rod 5 of the first die base 2.

When the first mold base 2 is coupled to the second mold base 3, the tie rod 5 is embedded in the perforation 6a of the base 6, and then the balls 8 controlled and displaced will abut the annular groove 5a of the tie rod 5. So that the tie rod 5 cannot be separated from the second die base 3 to complete the assembling process of the processing jig 1. Conversely, if the assembled processing jig 1 is to be detached, the balls 8 can be controlled away from the tie rods 5 so that the tie rods 5 that are no longer restrained by the balls 8 can be separated from the perforations 6a, thereby achieving separation of the The purpose of a mold base 2 and the second mold base 3.

However, in the process of assembling or disassembling the processing jig 1, it is inevitable that the alignment error between the tie rod 5 and the perforation 6a will occur due to the accuracy error of the machine equipment or human factors, causing the tie rod 5 to rub against the The outer surface of the base 6 or the hole wall of the perforation 6a causes abrasion and reduces the stability between the first mold base 2 and the second mold base 3. The foregoing situation will lead to situations where it is unstable to maintain good positioning. As a result, the processing jigs need to be replaced again, resulting in increased costs.

In view of this, an object of the present invention is to provide a processing jig, which is a replaceable component to extend the service life.

In order to achieve the above object, a processing jig provided by the present invention includes a first die base and a second die base; the first die base has a draw bar, and the second die base has a perforation for the draw bar to pass through; It is characterized in that the second mold base includes a base and a shaft sleeve, wherein the base has a through hole, the shaft sleeve is detachably coupled to the base and is located in the through hole, and the shaft sleeve has the perforation.

The effect of the present invention is to improve the structure of the second mold base so that the shaft sleeve is detachably coupled to the base, and once the shaft sleeve generates a loss, the first mold base and the second mold base are reduced. When it is stable, the new sleeve can be replaced immediately to extend the service life of the processing jig.

In order to explain the present invention more clearly, several preferred embodiments are described in detail below with reference to the drawings. Please refer to FIG. 2 and FIG. 3, a processing jig 100 according to a first preferred embodiment of the present invention. It includes a first mold base 10 and a second mold base 20; the first mold base 10 includes a workpiece seat plate 12 and a tie rod 14, the tie rod 14 is coupled to the workpiece seat plate 12, and The outer annular surface is recessed to form an annular groove 14a. The second die base 20 includes a base 21, a plurality of pushing members 22, a shaft sleeve 23, a plurality of balls 24, a chassis 25, and a piston 26.

The base 21 has a through hole 211. The through hole 211 is recessed along the axial direction from the top surface to the bottom surface of the base 21 to form a reaming section 211a, and a first retaining wall 211b is formed protruding from the hole wall below the reaming section 211a. An annular surface of the first retaining wall 211b is formed with an internal thread section 211c.

In addition, the base 21 is further provided with a plurality of grooves 212 and a first channel 213, and each of the grooves 212 is recessed from the bottom surface of the base 21, and a corresponding pushing member 22 is provided for accommodation. The first channel 213 is recessed from the side wall of the base 21 and communicates with an external pressure source A1. In this embodiment, the external pressure source A1 is an air compressor but is not limited thereto.

The shaft sleeve 23 is detachably coupled to the base 21 and is located in the through hole 211. The shaft sleeve 23 has a through hole 231 and a plurality of side holes 232. The perforations 231 communicate with the top surface and the bottom surface of the sleeve 23 to provide the rod 14 of the first mold base 10 to pass through. The side holes 232 are annularly formed on the ring wall of the sleeve 23 and communicate with the perforations. 231, and a corresponding one of the balls 24 is provided.

In addition, in this embodiment, the shaft sleeve 23 further has a second retaining wall 233 and an external thread segment 234 which are sequentially formed from the top surface toward the bottom surface; the second retaining wall 233 is from the shaft sleeve 23 The top edge is formed outward in the radial direction; the externally threaded section 234 is disposed on the outer annular surface of the sleeve 23 and is located below the second retaining wall 233 for screwing the internally threaded section of the base 21 211c. After the shaft sleeve 23 is assembled on the base 21, the second retaining wall 233 is located in the reaming section 211a of the base 21, and the bottom surface of the second retaining wall 233 abuts against the top of the first retaining wall 211b. surface. With the foregoing structural relationship, after the shaft sleeve 23 is coupled to the base 21, the top surface of the base 21 and the top surface of the shaft sleeve 23 are flush with each other, so that the first mold base 10 and the second mold The seats 20 form a good close configuration relationship.

The chassis 25 is coupled to the bottom of the base 21 and provides one end of the pushing members 22 to abut. The chassis 25 is provided with a second channel 251 to communicate with the external pressure source A1. The piston 26 is disposed in the base 21 and is movable between a first position P1 (see FIG. 2) and a second position P2 (see FIGS. 3 and 4). The piston 26 has a shaft hole 261 for the The shaft sleeve 23 passes through, and the piston 26 receives the thrust force of the thrust members 22 and is maintained to move to the first position P1. The piston 26 is controlled by the high-pressure gas from the external pressure source A1 to be injected from the first channel 213 or the second channel 251 to be squeezed and changed position, as shown in Figs. The second passage 251 introduces and pushes the piston 26 to move to the second position P2; as shown in FIG. 5, it shows that the introduction of high-pressure gas from the first passage 213 pushes the piston 26 to move to the first position P1.

In addition, the piston 26 further has a convex portion 262 protruding from the hole wall of the shaft hole 261 and a concave portion 263 formed by being recessed from the wall of the shaft hole 261; when the piston 26 is located at the first position P1, its convexity The portion 262 pushes the balls 24 back into the side holes 232 of the shaft sleeve 23. When the piston 26 is located at the second position P2, the balls 24 will move in the direction of the piston 26 to make each piston The part 26 falls into the recess 263 of the piston 26.

The above is the structural description of the components in the processing jig 100. The following describes the assembly steps of combining the first mold base 10 with the second mold base 20.

First, as shown in FIG. 3, the high-pressure gas injected from the second channel 251 will squeeze and push the piston 26 to the second position P2; the balls 24 can no longer be blocked by the convex portion 262 of the piston 26 Moves in the recess 263 and the side hole 232 of the piston 26. As shown in FIG. 4, when the tie rod 14 of the first mold base 10 penetrates the through hole 231 of the sleeve 23, the freely moving ball 24 will not hinder the tie rod 14, so that the tie rod 14 enters the hole smoothly. In the perforation 231 of the sleeve 23.

FIG. 5 further reveals that the high pressure gas is injected into the first channel 213 by controlling the external pressure source A1, thereby forcing the piston 26 to move to the first position P1; at the same time, the convex portion 262 of the piston 26 will be pushed up The balls 24 are retracted into the side holes 232, so that the balls 24 are pressed against the groove surfaces of the annular groove 14a of the tie rod 14, respectively, thereby fixing the position of the tie rod 14, and completing the combination of the first mold base 10 The assembling operation of the second mold base 20.

In the processing jig 100 of the aforementioned first preferred embodiment, the base 21 and the sleeve 23 of the second mold base 20 are detachably combined, whereby if the tie rod 14 is opposite to the shaft The assembly and disassembly of the through hole 231 of the sleeve 23 causes wear on the top surface of the sleeve 23 or the hole wall of the through hole 231, which affects the alignment effect of the first mold base 10 and the second mold base 20 and the assembled During stability, the worn-out shaft sleeve 23 can be removed and replaced with a new shaft sleeve, thereby avoiding the cost waste caused by the replacement of the entire set of processing jigs, and making the first mold base 10 and the first mold base 10 The two mold bases 20 maintain a good close configuration relationship to extend the service life of the processing jig 100.

It is further explained that the state in which the shaft sleeve 23 is detachably coupled to the base 21 is not limited to the above. As shown in FIG. 6, the processing fixture of the second preferred embodiment has a composition structure The processing jig 100 is the same as that of the first preferred embodiment, except that the base 31 of the processing jig of the second preferred embodiment is provided with a hole wall surface of a through-hole reaming section 311a of the second preferred embodiment. There is an internal thread section 311b; and an external thread section 321a is formed on the outer ring surface of the second retaining ring 321 of the sleeve 32. The external thread section 321a is also used to screw the internal thread section 311b in the through hole 311, thereby The effect of detachable coupling between the sleeve 32 and the base 31 is achieved. In addition, in the foregoing second embodiment, in a manner that the internal thread section 311b of the through hole 311 is provided on the hole wall of the enlarged hole section 311a, the base 41 shown in FIG. 7 (third embodiment) can also be used for implementation. The difference between this example and the second embodiment is that the length of the internally threaded section 411 and the externally threaded section 421 in this embodiment is longer than the length of the internally threaded section 311b and the externally threaded section 321a in the second embodiment, which can improve the shaft sleeve. 42 is screwed to the bonding strength of the base 41.

The processing jig of the fourth preferred embodiment shown in FIG. 8 has the same structure as the processing jig 100 of the first preferred embodiment, except that the processing jig of the fourth preferred embodiment is different. In the base 51, an internal thread 511b is formed on the hole wall of the enlarged hole section 511a of the through hole 511. In addition, in this embodiment, the shaft sleeve 52 is composed of a set of body 521 and an end plug 522. The sleeve body 521 is located in the through hole 511 of the base 51, and the ring wall of the sleeve body 521 protrudes to form a second retaining wall 521a. The second retaining wall 521a is located between the top surface and the bottom surface of the sleeve body 521. . The outer ring surface of the end plug 522 is provided with an external thread section 522a for screwing the internal thread section 511b. The bottom surface of the end plug 522 abuts the top surface of the second stop 521a. The top surface of the end plug 522 is connected with The top surfaces of the base 51 are flush with each other. The purpose of the end plug 522 is to fix the position of the sleeve body 521. The processing fixture of the third preferred embodiment also obtains the effect of reducing the cost and extending the service life of the processing fixture through the structural design of the removable shaft sleeve 52.

The processing jig of the fifth preferred embodiment shown in FIG. 9 has the same structure and structure as the processing jig 100 of the first preferred embodiment, except that this embodiment further includes a C-shaped buckle as In addition, the wall surface of the through hole 611 of the base 61 is more concavely provided with an annular groove 612, and the groove diameter of the annular groove 612 is larger than the diameter of the enlarged hole section 613, and the annular groove 612 is located at the first stop. 614 above; the restricting member 60 is embedded in the annular groove 612 and presses against the top surface of the second retaining wall 621 of the sleeve 62 to restrict the position of the sleeve 62 and prevent the sleeve 62 from opposing the base 61 Break away.

The processing jig of the sixth preferred embodiment shown in FIG. 10 has the same structure as the processing jig 100 of the first preferred embodiment, except that this embodiment further includes a plurality of bolts 70; Among them, the first stop 711 of the base 71 has a plurality of screw holes 712; the second stop 721 of the sleeve 72 has a plurality of through holes 722 corresponding to one of the screw holes 712, and each of the bolts 70 passes through the corresponding One of the through holes 722 is locked into one of the screw holes 712, so that the shaft sleeve 72 is combined with the base 71.

To sum up, the processing jig of the present invention is detachably coupled to the base through a shaft sleeve and has a structure design perforated by the tie rod so that when the tie rod faces the shaft sleeve When the perforating and disassembling action causes abrasion on the outer surface of the shaft sleeve or the wall of the perforated hole and affects the alignment stability between the first mold base and the second mold base, a new one can be replaced. The shaft sleeve is continued to be used, avoiding the cost waste caused by replacing the entire set of processing jigs, and maintaining a good close configuration relationship between the first mold base and the second mold base, and prolonging the service life of the processing jigs.

The above descriptions are only the preferred and feasible embodiments of the present invention, and any equivalent changes made by applying the description of the present invention and the scope of patent application should be included in the patent scope of the present invention.

[this invention]
100‧‧‧Processing fixture
10‧‧‧The first mold base
12‧‧‧ Workpiece seat plate
14‧‧‧Trolley
14a‧‧‧Ring groove
20‧‧‧Second mold base
21, 31, 41, 51, 61, 71‧‧‧ base
211, 311, 511, 611‧‧‧ through hole
211a, 311a, 511a, 613‧‧‧reaming section
211c, 311b, 411, 511b
211b, 614, 711‧‧‧ the first barrier
212‧‧‧groove
213‧‧‧First channel
22‧‧‧ Pusher
231‧‧‧perforation
232‧‧‧Side hole
23, 32, 42, 52, 62, 72‧‧‧ bushings
233, 321, 521a, 621, 721‧‧‧ Second stop
234, 321a, 421, 522a
24‧‧‧ball
25‧‧‧Chassis
251‧‧‧Second Channel
26‧‧‧ Pistons
261‧‧‧shaft hole
262‧‧‧ convex
263‧‧‧concave
521‧‧‧set of body
522‧‧‧End plug
612‧‧‧Circular groove
60‧‧‧Restrictions
70‧‧‧ Bolt
711‧‧‧First stop
712‧‧‧Thread hole
722‧‧‧through hole
P1‧‧‧First position
P2‧‧‧Second position
A1‧‧‧External pressure source

Figure 1 is a schematic diagram of a conventional processing jig. FIG. 2 is a schematic diagram of a second mold base of the processing jig of the first preferred embodiment of the present invention. FIG. 3 is a schematic diagram of a processing jig according to a first preferred embodiment of the present invention, revealing that the shaft sleeve is coupled to the base, the first mold base has not been coupled to the second mold base, and the piston moves to the second position. FIG. 4 is a schematic view similar to FIG. 3, which reveals that the pull rod penetrates into the perforation of the sleeve of the second mold base. Figure 5 is a schematic diagram similar to Figure 3, revealing that the piston moves to the first position, forcing the ball to press against the outside of the tie rod. FIG. 6 is a schematic diagram of a second mold base of a processing jig according to a second preferred embodiment of the present invention. FIG. 7 is a schematic diagram of a second mold base of a processing jig according to a third preferred embodiment of the present invention. FIG. 8 is a schematic diagram of a second mold base of a processing jig according to a fourth preferred embodiment of the present invention. FIG. 9 is a schematic diagram of a second mold base of a processing jig according to a fifth preferred embodiment of the present invention. FIG. 10 is a schematic diagram of a second mold base of a processing jig according to a sixth preferred embodiment of the present invention.

20‧‧‧Second mold base

21‧‧‧ base

211‧‧‧through hole

211a‧‧‧reaming section

211b‧‧‧First stop

211c‧‧‧Internal thread section

212‧‧‧groove

213‧‧‧First channel

23‧‧‧ shaft sleeve

22‧‧‧ Pusher

231‧‧‧perforation

232‧‧‧Side hole

233‧‧‧Second stop

234‧‧‧External thread section

24‧‧‧ball

25‧‧‧Chassis

251‧‧‧Second Channel

26‧‧‧ Pistons

261‧‧‧shaft hole

262‧‧‧ convex

263‧‧‧concave

P1‧‧‧First position

A1‧‧‧External pressure source

Claims (12)

A processing jig includes a first mold base and a second mold base; the first mold base has a tie rod, the second mold base has a perforation for the tie rod to pass through; and the feature is: the second mold base It includes a base and a shaft sleeve, wherein the base has a through hole, the shaft sleeve is detachably coupled to the base and is located in the through hole, and the shaft sleeve has the perforation. The processing jig according to claim 1, wherein the base has a first retaining wall protruding from the wall of the through hole, the shaft sleeve has a second retaining wall formed radially outward, and the first retaining wall is formed radially outward. The bottom surface of the second retaining wall abuts the top surface of the first retaining wall. The processing jig according to claim 2, wherein the through hole wall of the base is provided with an internally threaded section, and the surface of the sleeve is provided with an externally threaded section, and the externally threaded section is screwed with the internally threaded section. The processing jig according to claim 3, wherein the first retaining wall of the base is protruded and formed along the circumference of the through hole, and the internal thread section is formed on the annular surface of the first retaining wall ; The second stop of the sleeve is formed radially outward from the top edge of the sleeve, and the external thread section is located below the second stop. The processing jig as described in claim 4, wherein the through hole of the base includes a reaming section recessed from the top surface of the base, and the diameter of the reaming section is larger than that of the internally threaded section of the through hole. The retaining wall is located below the reaming section; the second retaining wall of the sleeve is located in the reaming section. The processing jig according to claim 3, wherein the through hole of the base includes a reaming section recessed from the top surface of the base, the hole diameter of the reaming section is larger than that of the through hole, and the internal thread section is formed in the expanding In the hole wall of the hole section, the first retaining wall is protruded along the circumference of the through hole, and is located below the enlarged hole section; the second retaining wall of the sleeve is from the top edge of the sleeve It is formed outward in the radial direction, and the external thread segment is formed on the outer ring surface of the second stop. The processing jig according to claim 3, wherein the through hole of the base includes a reaming section recessed from the top surface of the base, the hole diameter of the reaming section is larger than that of the through hole, and the internal thread section is formed in the expanding The hole wall of the hole section, the first retaining wall is protruded along the circumference of the through hole and is located below the enlarged hole section; the shaft sleeve includes a set of body and an end plug, wherein the set of body is located in the through hole The second retaining wall is formed in the hole and the outer ring surface faces radially outward. The end plug has the external thread segment, and the bottom surface of the end plug abuts the top surface of the second retaining wall. The processing jig according to claim 2, comprising a restricting member; wherein the base has an annular groove above the first retaining wall; the restricting member is embedded in the annular groove and presses against the second of the shaft sleeve The top surface of the retaining wall. The processing jig according to claim 2, comprising at least one bolt; wherein the first stop of the base has at least one screw hole, and the second stop of the sleeve has at least one through hole, and the bolt passes through Pass the through hole and lock into the screw hole, so that the shaft sleeve is combined with the base. The processing jig according to claim 1, wherein the second die base includes a piston and a plurality of balls; the piston is disposed in the base and is movable between a first position and a second position, the piston A shaft hole is provided for the shaft sleeve to pass through, and the piston has a convex portion protruding from the wall of the shaft hole hole and a recess formed from the wall of the shaft hole hole; the shaft sleeve has a plurality of side holes. The balls are respectively arranged in a corresponding side hole; when the piston is located in the first position, the convex portion pushes the balls to retreat into the side holes, and when the piston is located in the second position, the A portion of the ball falls into the recess. The processing jig according to claim 10, wherein the second mold base further includes a chassis coupled to the bottom of the base, the base is provided with a first channel, the chassis is provided with a second channel, and the first channel and The second channels are respectively connected to an external pressure source, wherein the pressure introduced into the first channel causes the piston to be located in the first position, and the pressure introduced into the second channel causes the piston to be located in the second position. The processing jig according to claim 10 or 11, wherein the second die base includes at least one pushing member, and the pushing member provides a pushing force to urge the piston to move to the first position.