TW201801844A - Clamp holder - Google Patents

Abstract

A clamp mold base includes a first mold base, a second mold base, and a clamping structure. The first mold base includes a workpiece base plate and a tie rod, and the tie rod is combined with the workpiece base plate; the second die base; The base includes a base, a top cover and a shaft sleeve; the base has a first perforation, the top cover is coupled to the top of the base and has a second perforation communicating with the first perforation, and the shaft sleeve passes through the first In the perforation and the second perforation, the bottom of the sleeve is combined with the base, the sleeve has a shaft hole and a plurality of side holes; the clip structure includes a moving member and a plurality of balls, and the moving member is disposed on the base. Between the seat and the upper cover; the balls are located in corresponding side holes. The foregoing structure allows the combined clamp mold base to form a good close configuration relationship to improve the stability.

Description

Fixture mold base

The invention relates to a fixture mold base; in particular, it relates to a fixture mold base which can prolong the service life.

The conventional mold holder 1 shown in FIG. 1 includes a first mold holder 2 and a second mold holder 3. The first mold holder 2 includes a workpiece holder plate 4 and a tie rod 5 disposed on the workpiece holder plate 4. ; The second mold base 3 includes a base 6, a shaft sleeve 7, a bottom plate 8 and a clip structure 9.

The shaft sleeve 7 is located inside the base 6, and the top of the shaft sleeve 7 is screwed to the top of the base 6. The shaft sleeve 7 has a shaft hole 7 a and a plurality of side holes 7 b. 7 is a wall surface, and the shaft hole 7a is used to provide the insertion of the tie rod 5 of the first mold base 2. The bottom plate 8 is coupled below the base 6; the clip structure 9 is disposed between the bottom plate 8 and the base 6 and includes a plurality of balls 9a, a moving member 9b, and a plurality of pushing members 9c, among which The balls 9a are respectively located in the corresponding one of the side holes 7b; the moving member 9b is controlled to move up and down; the pushing members 9c are used to push the moving member 9b to drive the moving member 9b toward Move down.

When the first mold base 2 is coupled to the second mold base 3, the tie rod 5 is embedded in the shaft hole 7a of the shaft sleeve 7, and then, the controlled moving member 9b pushes the balls 9a to drive the balls 9a is displaced and abuts against 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 assembly of the clamp die base 1.

In order for the tie rod 5 to be surely pinched by the pinch structure 9, the pinch structure 9 is usually driven to exert a large pinch force on the tie rod 5. However, as shown in FIG. 2, in the process of forcing the pull rod 5 to move downward, the aforementioned pinching force is likely to cause the workpiece seat plate 4 to be affected and deformed. Secondly, under the influence of the reaction force of the pull rod 5, The reaction force will be transferred to the shaft sleeve 7 through the balls 9a. Since the top of the shaft sleeve 7 is screwed with the top of the base 6, the base is squeezed when the shaft 7 is pushed upward by the balls 9a. The top part 6 also deforms upwards, adding that the second mold base 3 cannot contact the bottom surface of the first mold base 3 with a flat top surface, which seriously affects the stability of the clamp mold base 1 after assembly.

In view of this, an object of the present invention is to provide a clamp mold base, which is to make a good close configuration relationship between the combined first mold base and the second mold base, and to improve the stability after assembly.

In order to achieve the above object, a clamp mold base provided by the present invention includes a first mold base, a second mold base, and a clamp structure. The first die seat includes a workpiece seat plate and a tie rod, the tie rod is coupled to the workpiece seat plate and has an annular groove; the second die seat includes a base, an upper cover and a shaft sleeve; the base has a A first perforation, the upper cover is coupled to the top of the base and has a second perforation communicating with the first perforation; the sleeve is inserted through the first and second perforations; the bottom of the sleeve is connected to the base And the shaft sleeve has a shaft hole and a plurality of side holes, and the side holes communicate with the shaft hole; the clamp structure includes a moving member and a plurality of balls, and the moving member is movably disposed on the base and Between the upper cover, the moving part has a pushing part; the balls are respectively located in a corresponding side hole; thereby, the draw rod of the first mold base passes through the shaft hole, and the moving part is controlled to move and The ball is pushed by the pushing part, and the ball part falls into the annular groove of the tie rod, so that the first mold base is combined with the second mold base.

The effect of the present invention is to form a good close configuration relationship between the combined first mold base and the second mold base, thereby improving the stability of the clamp mold base after assembly and extending the service life.

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. 3 and FIG. 4, which is a clamp mold base 100 of the first preferred embodiment of the present invention. The clamp mold base 100 includes a first mold base 10, a second mold base 20, and a clamping structure 30 combined with the second mold base 20. The first mold base 10 includes a workpiece base plate 12 and a A tie rod 14 is coupled to the workpiece seat plate 12, and an outer circumferential surface of the tie rod 14 is recessed to form an annular groove 141. The second die seat 20 includes a base 22, an upper cover 24 and a shaft sleeve 26. .

The base 22 includes a base plate 221, a side wall 222, and a cover 223. The base plate 221 has a first perforation 221a and an internally threaded section 221b provided in a hole wall of the first perforation 221a. A first channel 221c and a second channel 221d are respectively provided to communicate with an external pressure source. In this embodiment, the external pressure source is an air compressor but is not limited thereto. The side wall 222 is integrated with the chassis 221, and the side wall 222 is connected to the upper cover 24.

The cover 223 is coupled to the side wall 222, and a space S is formed between the cover 223, the side wall 222, and the chassis 221, and the space S provides the clip structure 30 to set and communicate with the first channel 221c. And the second channel 221d, wherein the clip structure 30 includes a moving member 32 and a plurality of pushing members 34, the moving member 32 is located in the space S and is subjected to the external pressure from the first channel 221c or It is the effect of the high-pressure gas injected by the second channel 221d, and moves between a first position P1 and a second position P2, as shown in FIG. 3, which means that the high-pressure gas is introduced from the second channel 221d and promotes the movement The member 32 moves to the second position P2; as shown in FIG. 4, it indicates that high pressure gas is injected from the first channel 221c to push the moving member 32 to move to the first position P1. In addition, the moving member 32 has a pusher部 321. The pushing members 34 are received in a plurality of grooves 223a recessed from the bottom surface of the cover 223, and provide a pushing force to urge the moving member 32 to move to the first position P1.

The upper cover 24 is detachably coupled to the top of the base 22 (ie, the side wall 222), and the upper cover 24 has a second through hole 241 communicating with the first through hole 221 a. The shaft sleeve 26 is detachably coupled to the base 22 and penetrates the first through hole 221 a and the second through hole 241. The sleeve 26 has a shaft hole 261, a plurality of side holes 262, and a constricted portion 263 and a body portion 264. The shaft hole 261 penetrates the constricted portion 263 and the body portion 264, and is used to provide the first The tie rod 14 of the mold base 10 is penetrated; the clamping structure 30 further includes a plurality of balls 36, and the side holes 262 are ringed on the body 264 of the sleeve 26 and communicate with the shaft holes 261 respectively, and are provided separately. A corresponding one of the balls 36 is provided. In addition, an external thread segment 263a is provided on the surface of the shrinkage portion 263, and an abutment surface 264a is formed between the body portion 264 and the shrinkage portion 263. When the sleeve 26 is assembled on the base 22, the abutment surface 264a will be in contact with the top surface of the chassis 221, and the externally threaded section 263a is screwed with the internally threaded section 221b of the chassis 221.

The aforementioned structural relationship enables the shaft sleeve 26 to be screwed to the bottom plate 221 of the base 22 instead of being fixed to the top position of the base 22 (ie, the upper cover 24). Therefore, when the tie rod 14 of the first die base 10 is penetrated through the shaft hole 261, the moving member 32 is controlled to move and pushes the balls 36 with its pushing portion 321, forcing a part of the balls 36 to fall on the When the annular groove 141 of the tie rod 14 drives the tie rod 14 to move downward, the reaction force of the tie rod 14 is passed on to the shaft sleeve 26 through the balls 36. However, as shown in FIG. The reaction force forces the shaft sleeve 26 to move upwards, and only affects the joint where the shaft sleeve 26 is fixed to the chassis 221 (that is, the bottom position of the base 22), and the top surface of the base 21 ( That is, the top surface of the upper cover) will still maintain a flush relationship with the top surface of the sleeve 26, so that after the clamp mold base 100 is assembled, the first mold base 10 and the second mold base 20 Form a good tight configuration.

In other words, the clamp mold base 100 of the aforementioned first preferred embodiment is to change the fixed position between the sleeve 26 and the base 22 to prevent the first mold base 10 from being combined with the second mold base 20 The top of the base 22 and the shaft sleeve 26 is deformed, so as to avoid affecting the stability of the first mold base 10 and the second mold base 20 after assembly.

It is further explained that the state in which the bottom of the sleeve 26 is fixed to the bottom of the base 22 is not limited to the above. As shown in FIG. 5, the clamp mold base of the second preferred embodiment has a composition structure Similar to the clamp mold base 100 of the first preferred embodiment, except that the chassis 42 of the second preferred embodiment has a first retaining wall 421a protruding from the wall of the first through hole 421, and the The first retaining wall 421a is located above the internally threaded section 421b of the first perforation 421. In addition, the sleeve 44 in this embodiment has a second retaining wall 441 formed radially outward. The external thread segment 442 is formed on the outer surface of the second retaining wall 441. When the sleeve 44 is inserted into the first hole 421 of the chassis 42, the top surface of the second retaining wall 441 will abut against the The bottom surface of the first retaining wall 421a. Thereby, a good tight configuration relationship is formed between the first mold base and the second mold base after the same combination as the first embodiment, so as to improve the efficacy of the stability of the clamp mold base after assembly.

The clamp mold base of the third preferred embodiment shown in FIG. 6 is similar in structure to the first preferred embodiment, except that in the chassis 52 of the base 51 of the third preferred embodiment The first perforation 521 includes a reaming section 521a recessed from the bottom surface of the chassis 52 and located below the internal thread section 521b. In addition, the bottom edge of the sleeve 54 has a convex ring 541 formed radially outward, and the convex ring 541 is adjacent to the externally threaded section 542 and is located below the externally threaded section 542. When the shaft sleeve 54 is combined with the base 51, the convex ring 541 is located in the reaming section 521a, so that the bottom of the shaft sleeve 54 is fixed to The bottom of the base 51 prevents the top of the base 51 and the top of the sleeve 54 from deforming to avoid affecting the stability of the first mold base and the second mold base after assembly.

The clamp mold base of the fourth preferred embodiment shown in FIG. 7 has the same structure as the clamp mold base 100 of the first preferred embodiment, except that in the chassis 62 of the base 61 of this embodiment, The first stop 621 is located above the internally threaded section 622. The sleeve 64 includes a set of body 641 and an end plug 642, wherein the set of body 641 passes through the first hole 623 of the chassis 62 and the second hole 631 of the upper cover 63. The outer ring surface of the sleeve body 641 is formed with a second retaining wall 641a radially outward. The top surface of the second retaining wall 641a abuts the bottom surface of the first retaining wall 621. The end plug 642 has The external thread segment 642a, and the top surface of the end plug 642 abuts the bottom surface of the second retaining wall 641a. The purpose of the end plug 642 is to fix the position of the sleeve body 641. The clamp mold base of the fourth preferred embodiment can also be fixed to the chassis 62 through the shaft sleeve 64 at its bottom, preventing the top of the base 61 and the top of the shaft sleeve 64 from being assembled on the first mold base and the second mold base. Deformation occurs in the process to improve the stability of the clamp mold base after the combination.

The clamp mold base of the fifth preferred embodiment shown in FIG. 8 has the same structure and structure as the clamp mold base 100 of the first preferred embodiment, except that this embodiment further includes a C-shaped buckle as In addition, the limiting member 71 of the base 72 of this embodiment has an annular groove 731 located below the first stop 732. The restricting member 71 is embedded in the annular groove 732 and presses against the second stop of the shaft sleeve 74. The bottom surface of the flange 741 is used to restrict the position of the shaft sleeve 74, prevent the shaft sleeve 74 from detaching from the base 72, and make the top surface of the second flange 741 abut against the bottom surface of the first flange 732.

The clamp mold base of the sixth preferred embodiment shown in FIG. 9 has the same structure as the clamp mold base 100 of the first preferred embodiment, except that the sleeve 82 and the chassis 84 of this embodiment are different. It is integrally formed, and the sleeve 82 is connected to the chassis 84 by its bottom.

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‧‧‧ Fixture mold base
10‧‧‧The first mold base
12‧‧‧ Workpiece seat plate
14‧‧‧Trolley
141‧‧‧Circular groove
20‧‧‧Second mold base
22‧‧‧ base
221‧‧‧Chassis
221a‧‧‧first perforation
221b‧‧‧Internal thread section
221c‧‧‧First channel
221d‧‧‧Second Channel
222‧‧‧Side wall
223‧‧‧Mask
223a‧‧‧groove
24‧‧‧ Upper cover
241‧‧‧second perforation
26‧‧‧Shaft sleeve
261‧‧‧shaft hole
262‧‧‧Side hole
263‧‧‧Constriction
263a‧‧‧External thread section
264‧‧‧body
264a‧‧‧ abutting surface
30‧‧‧ Clip structure
32‧‧‧ moving parts
321‧‧‧ Pushing Department
34‧‧‧ Pusher
36‧‧‧ball
42‧‧‧Chassis
421‧‧‧first perforation
421a‧‧‧First Retainer
421b‧‧‧Internal thread section
44‧‧‧ shaft sleeve
441‧‧‧Second stop
442‧‧‧External thread section
51‧‧‧ base
52‧‧‧Chassis
521‧‧‧first perforation
521a‧‧‧reaming section
521b‧‧‧Internal thread section
54‧‧‧ shaft sleeve
541‧‧‧ convex ring
542‧‧‧External thread section
61‧‧‧ base
62‧‧‧Chassis
623‧‧‧first perforation
621‧‧‧First stop
622‧‧‧Internal thread section
63‧‧‧ Upper cover
631‧‧‧second perforation
64‧‧‧ shaft sleeve
641‧‧‧set of body
642‧‧‧End plug
642a‧‧‧External thread section
641a‧‧‧Second stop
71‧‧‧Restrictions
72‧‧‧ base
73‧‧‧Chassis
731‧‧‧Circular groove
732‧‧‧First stop
74‧‧‧ shaft sleeve
741‧‧‧Second stop
82‧‧‧Chassis
84‧‧‧ shaft sleeve

Figure 1 is a schematic diagram of a conventional fixture mold base. Figure 2 is a schematic diagram of a conventional fixture mold base. Figure 3 is a schematic diagram of a fixture mold base of the first preferred embodiment of the present invention, revealing that the first mold base is not yet combined with the second mold base, and the moving part moves to the second position . Figure 4 is a schematic diagram similar to Figure 3, revealing that the first mold base is combined with the second mold base, and the deformation position is located at the joint of the chassis and the bottom of the shaft sleeve. FIG. 5 is a schematic diagram of a second mold base of a clamp mold base according to a second preferred embodiment of the present invention. FIG. 6 is a schematic diagram of a second mold base of a fixture mold base according to a third preferred embodiment of the present invention. FIG. 7 is a schematic diagram of a second mold base of a clamp mold base according to a fourth preferred embodiment of the present invention. FIG. 8 is a schematic diagram of a second mold base of a clamp mold base according to a fifth preferred embodiment of the present invention. FIG. 9 is a schematic diagram of a second mold base of a clamp mold base of a sixth preferred embodiment of the present invention.

100‧‧‧ Fixture mold base

10‧‧‧The first mold base

12‧‧‧ Workpiece seat plate

14‧‧‧Trolley

141‧‧‧Circular groove

20‧‧‧Second mold base

22‧‧‧ base

221‧‧‧Chassis

221a‧‧‧first perforation

221b‧‧‧Internal thread section

221c‧‧‧First channel

221d‧‧‧Second Channel

222‧‧‧Side wall

223‧‧‧Mask

223a‧‧‧groove

24‧‧‧ Upper cover

241‧‧‧second perforation

26‧‧‧Shaft sleeve

261‧‧‧shaft hole

262‧‧‧Side hole

263‧‧‧Constriction

263a‧‧‧External thread section

264‧‧‧body

264a‧‧‧ abutting surface

30‧‧‧ Clip structure

32‧‧‧ moving parts

321‧‧‧ Pushing Department

34‧‧‧ Pusher

36‧‧‧ball

P2‧‧‧Second position

S‧‧‧ space

Claims (10)

A clamp mold base includes: a first mold base including a workpiece base plate and a tie rod, the tie rod being combined with the workpiece base plate and having an annular groove; a second die base including a base, a An upper cover and a shaft sleeve; the base has a first perforation, the upper cover is coupled to the top of the base and has a second perforation communicating with the first perforation, and the shaft sleeve passes through the first and second perforations; The bottom of the sleeve is combined with the base, and the sleeve has a shaft hole and a plurality of side holes, the side holes are in communication with the shaft hole; and a clip structure, which includes a moving member and a plurality of balls, The moving member is movably disposed between the base and the upper cover, and the moving member has a pushing portion; the balls are respectively located in a corresponding side hole; thereby, the tie rod of the first mold base passes through The shaft hole is provided, and the moving part is controlled to displace and push the balls with its pushing part, and the ball part falls into the annular groove of the tie rod, so that the first mold base is combined with the second mold base. The fixture mold base according to claim 1, wherein the first perforated hole wall of the base is provided with an internally threaded section, and the outer surface of the sleeve is provided with an externally threaded section, and the externally threaded section and the internally threaded section are mutually Spiral. The fixture mold base according to claim 2, wherein the base includes a side wall and a chassis, the side wall is connected to the chassis and is connected to the upper cover, the chassis has the first perforation, and the shaft sleeve has a connection A shrinkage part and a body part, the shrinkage part is provided with the external thread segment screwing with the internal thread segment of the first perforation, and an abutment surface and a top surface of the chassis are formed between the body part and the shrinkage part contact. The fixture mold base according to claim 2, wherein the first perforation of the base has a reaming section formed from the bottom surface of the base and is adjacent to the internally threaded section; the bottom edge of the sleeve has a radially outward direction A convex ring is formed, the externally threaded section is adjacent to the convex ring, and the convex ring is located in the reamer section. The fixture mold base according to claim 2, wherein the base has a first stop protruding from the wall of the first perforation hole and is located above the internally threaded section; the sleeve includes a set of body and an end plug , The sleeve body has a second retaining wall formed radially outward, the second retaining wall abutting the first retaining wall; the end plug has the external thread section, and the top surface of the end plug abuts the first retaining wall; The bottom of the second block. The fixture mold base according to claim 1, wherein the base has a first retaining wall protruding from the wall of the first perforated hole, the shaft sleeve has a second retaining wall formed radially outward, and the The top surface of the second retaining wall abuts the bottom surface of the first retaining wall. The clamp mold base according to claim 6, comprising a restricting member; wherein the base has an annular groove located below the first retaining wall; the restricting member is embedded in the annular groove and presses against the second of the shaft sleeve The underside of the wall. The fixture mold base according to claim 6, wherein the first perforated hole wall of the base is provided with an internally threaded section, the internally threaded section is adjacent to the first retaining wall; the outer surface of the sleeve is provided with an externally threaded section The external thread segment is adjacent to the second stop and is screwed with the internal thread segment. The fixture mold base according to claim 1, wherein the shaft sleeve and the base are integrally formed. The fixture mold base according to claim 1, wherein the base is provided with a first channel and a second channel, and the first channel and the second channel are respectively connected to an external pressure source, wherein the first channel is The pressure causes the moving member to be located in the first position, and the pressure introduced into the second channel causes the moving member to be located in the second position.