TWI619574B - Clamp holder - Google Patents

Abstract

A clamp mold base includes a first mold base, a second mold base and a clamp structure, the first mold base includes a workpiece seat plate and a pull rod, the pull rod is coupled to the workpiece seat plate; the second mold base The base includes a base, the base has a first through hole, and the upper cover is coupled to the top of the base and has a second through hole communicating with the first through hole, the sleeve is disposed on the first In the through hole and the second through hole, the bottom of the sleeve is coupled to the base, the sleeve has a shaft hole and a plurality of side holes; the clamping 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 the corresponding side holes. The foregoing structure allows the combined clamp mold base to form a good close arrangement relationship to improve the stability.

Description

Clamp holder

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

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

The sleeve 7 is located inside the base 6, and the top of the sleeve 7 is screwed to the top of the base 6. The sleeve 7 has a shaft hole 7a and a plurality of side holes 7b are annularly disposed on the sleeve. The wall of the hole 7a is used to provide the tie rod 5 of the first mold base 2 to be embedded. The bottom plate 8 is coupled to the bottom of the base 6; the clamping 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, wherein 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 for pushing the moving member 9b, thereby driving the moving member 9b toward Move in the direction below.

When the first die holder 2 is coupled to the second die holder 3, the pull rod 5 is embedded in the shaft hole 7a of the sleeve 7, and then the controlled moving member 9b pushes the balls 9a to drive the balls. The 9a is displaced and abuts against the annular groove 5a of the pull rod 5, so that the pull rod 5 cannot be separated from the second mold base 3 to complete the assembly of the clamp mold base 1.

In order for the tie rod 5 to be firmly clamped by the clamping structure 9, the clamping structure 9 is usually driven to exert a large clamping force on the tie rod 5. However, as shown in FIG. 2, the aforementioned squeezing force tends to cause the workpiece seat plate 4 to be affected and deformed in the process of forcing the pull rod 5 to move downward; secondly, under the influence of the reaction force of the pull rod 5, The reaction force will be transferred to the sleeve 7 through the balls 9a. Since the top of the sleeve 7 is screwed to the top of the base 6, the base 7 is pushed upward by the balls 9a. The top portion of the 6 is also deformed upwards, and the second mold base 3 cannot be brought into contact with the bottom surface of the first mold base 3 by a flat top surface, which seriously affects the stability of the assembled mold base 1 after assembly.

In view of the above, an object of the present invention is to provide a clamp mold base which is capable of forming a good close arrangement between the combined first mold base and the second mold base to improve the stability after assembly.

In order to achieve the above object, a clamp mold base provided by the present invention comprises a first mold base, a second mold base and a clamp structure. The first mold base includes a workpiece seat plate and a pull rod, the pull rod is coupled to the workpiece seat plate and has an annular groove; the second mold base includes a base, an upper cover and a sleeve; the base has a a first through hole, the upper cover is coupled to the top of the base and has a second through hole communicating with the first through hole, the sleeve is disposed in the first through hole and the second through hole, the bottom of the sleeve and the base The sleeve has a shaft hole and a plurality of side holes, the side holes are in communication with the shaft hole; the clamping structure comprises a moving member and a plurality of balls, and the moving member is movably disposed on the base Between the upper covers, the moving member has a pushing portion; the balls are respectively located in a corresponding side holes; thereby, the pull rod of the first mold base passes through the shaft hole, and the moving member is controlled to be displaced The balls are pushed by the ejector portion, and the ball portion is dropped in the annular groove of the pull rod to bond the first mold base and the second mold base.

The invention has the effect of forming a good close arrangement relationship between the combined first mold base and the second mold base, thereby improving the stability of the clamp mold base after assembly and prolonging the service life.

In order to explain the present invention more clearly, several preferred embodiments are described in detail with reference to the drawings. Please refer to FIG. 3 and FIG. 4, which are the 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 coupled to the second mold base 20; the first mold base 10 includes a workpiece seat plate 12 and a a pull rod 14 is coupled to the workpiece seat plate 12, and the outer surface of the pull rod 14 is recessed to form an annular groove 141. The second mold base 20 includes a base 22, an upper cover 24 and a sleeve 26 .

The base 22 includes a chassis 221, a side wall 222 and a mask 223. The chassis 221 has a first through hole 221a and an internal threaded portion 221b disposed on the hole wall of the first through hole 221a, and the chassis 221 is further A first channel 221c and a second channel 221d are respectively connected to an external pressure source. In this embodiment, the external pressure source is an air compressor, but is not limited thereto. The side wall 222 and the chassis 221 are integrally formed, and the side wall 222 is coupled to the upper cover 24.

The mask 223 is coupled to the side wall 222, and a space S is formed between the mask 223 and the side wall 222 and the chassis 221, and the space S provides the clamping structure 30 to be disposed and communicates with the first passage 221c. And the second passage 221d, wherein the clamping 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 the external pressure is derived from the first passage 221c or Is the high pressure gas injected by the second passage 221d, and moves between a first position P1 and a second position P2, as shown in FIG. 3, that is, the high pressure gas is introduced from the second passage 221d and pushes the movement. The member 32 moves to the second position P2; as shown in FIG. 4, it indicates that the high pressure gas is injected from the first passage 221c to push the moving member 32 to move to the first position P1; further, the moving member 32 has an pushing Part 321. The pushing members 34 are received in a plurality of recesses 223a recessed from the bottom surface of the mask 223, and provide a pushing force to urge the moving member 32 to move toward 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 221a. The sleeve 26 is detachably coupled to the base 22 and penetrates the first through hole 221a 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 extends through the constricted portion 263 and the body portion 264 to provide the first portion. The shank structure of the shank 10 further includes a plurality of balls 36. The side holes 262 are annularly disposed on the body 264 of the sleeve 26 and communicate with the shaft holes 261, respectively. A corresponding one of the balls 36 is provided. In addition, the surface of the constricted portion 263 is provided with an externally threaded portion 263a, and an abutting surface 264a is formed between the body portion 264 and the constricted portion 263. When the sleeve 26 is assembled to the base 22, the abutting surface 264a will be in contact with the top surface of the chassis 221, and the externally threaded section 263a is threadedly coupled to the internally threaded section 221b of the chassis 221.

The foregoing structural relationship is such that the sleeve 26 is screwed to the bottom plate 221 of the base 22 with its bottom portion instead of being fixed to the top position of the base 22 (ie, the upper cover 24). Therefore, when the pull rod 14 of the first mold base 10 is disposed in the shaft hole 261, the moving member 32 is controlled to be displaced and pushes the balls 36 with the pushing portion 321 thereof, forcing a portion of the ball 36 to fall thereon. When the annular groove 141 of the pull rod 14 drives the pull rod 14 to move downward, the reaction force of the pull rod 14 is transferred to the sleeve 26 through the balls 36. However, as shown in FIG. 4, even the pull rod 14 is provided. The reaction force forces the sleeve 26 to move upwards, and only affects the joint of the sleeve 26 fixed to the chassis 221 (ie, the bottom position of the base 22), and the top surface of the base 21 ( That is, the top surface of the upper cover still maintains 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 are assembled. Form a good tight configuration.

In other words, the clamp die holder 100 of the first preferred embodiment is configured to transmit a fixed position between the sleeve 26 and the base 22 to prevent the first die holder 10 from being coupled to the second die holder 20 . The base 22 and the top of the sleeve 26 are deformed to avoid affecting the stability of the first mold base 10 and the second mold base 20 after assembly.

It is to be noted that the sleeve 26 is fixed to the bottom of the base 22 with its bottom portion not limited to the above, and the clamp mold base of the second preferred embodiment shown in FIG. 5 has a structure. The same as the clamp die holder 100 of the first preferred embodiment, the chassis 42 of the second preferred embodiment has a first dam 421a protruding from the hole wall of the first through hole 421, and the The first dam 421a is located above the inner threaded portion 421b of the first through hole 421; in addition, the sleeve 44 in this embodiment has a second dam 441 formed radially outward, and the sleeve 44 is The outer threaded portion 442 is formed on the outer surface of the second dam 441. When the sleeve 44 is inserted into the first through hole 421 of the chassis 42, the top surface of the second dam 441 will abut the The bottom surface of the first dam 421a. Therefore, a good close arrangement between the first mold base and the second mold base which is the same as that of the first embodiment is formed to improve the stability of the clamp mold base after assembly.

The clamp mold base of the third preferred embodiment shown in FIG. 6 has the same structural structure as the first preferred embodiment, except that the base 52 of the base 51 of the third preferred embodiment is in the chassis 52. The first through hole 521 includes a reaming portion 521a formed from the bottom surface of the chassis 52 and located below the internal thread segment 521b. Further, the bottom edge of the sleeve 54 has a convex ring 541 formed radially outward, the convex ring The 541 abuts the outer threaded section 542 and is located below the outer threaded section 542. When the sleeve 54 is coupled with the base 51, the convex ring 541 is located in the reaming section 521a, so that the bottom of the sleeve 54 is fixed to the bottom. The bottom of the base 51 prevents the top of the base 51 from being deformed with the top of the sleeve 54 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 that of the clamp mold base 100 of the first preferred embodiment, except that in the chassis 62 of the base 61 of the present embodiment, The first dam 621 is located above the internal thread segment 622. The sleeve 64 includes a body 641 and an end plug 642. The sleeve body 641 is disposed in the first through hole 623 of the chassis 62 and the second through hole 631 of the upper cover 63. a second dam 641a is formed on the outer ring surface of the sleeve body 641, and a top surface of the second dam 641a abuts against a bottom surface of the first dam 621; the end plug 642 has The outer thread segment 642a, and the top surface of the end plug 642 abuts the bottom surface of the second dam 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 structure of the chassis 62 through the sleeve 64, and the top of the base 61 and the top of the sleeve 64 can be assembled in the first mold base and the second mold base. The process is deformed to improve the stability of the clamp mold base after bonding.

The clamp mold base of the fifth preferred embodiment shown in FIG. 8 has the same structure as the clamp mold base 100 of the first preferred embodiment. The difference is that the embodiment further includes a C-shaped buckle. In addition, the chassis 73 of the base 72 of the present embodiment has an annular groove 731 located below the first dam 732, and the limiting member 71 is embedded in the annular groove 732 and resists the second block of the sleeve 74. The bottom surface of the dam 741 is used to limit the position of the sleeve 74 to prevent the sleeve 74 from being disengaged from the base 72, and the top surface of the second dam 741 is abutted against the bottom surface of the first dam 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 the present embodiment are It is integrally formed, and the sleeve 82 is connected to the chassis 84 with its bottom.

The above is only a preferred embodiment of the present invention, and equivalent changes to the scope of the present invention and the scope of the patent application are intended to be included in the scope of the present invention.

[The invention] 100 clamp mold base 10 first mold base 12 workpiece seat plate 14 tie rod 141 annular groove 20 second mold base 22 base 221 chassis 221a first perforation 221b inner thread segment 221c first passage 221d second passage 222 side Wall 223 Cover 223a Groove 24 Upper Cover 241 Second Perforation 26 Bushing 261 Shaft Hole 262 Side Hole 263 Shrinking Portion 263a Externally Threaded Section 264 Body 264a Abutment Surface 30 Clamping Structure 32 Moving Member 321 Pushing Section 34 Pushing Piece 36 Ball 42 Chassis 421 First Perforation 421a First 垣 421b Internal Thread Section 44 Bushing 441 Second 垣 442 External Thread Section 51 Base 52 Chassis 521 First Perforation 521a Reaming Section 521b Internal Thread Section 54 Bushing 541 convex ring 542 external thread segment 61 base 62 chassis 623 first perforation 621 first dam 622 inner thread segment 63 upper cover 631 second perforation 64 sleeve 641 sleeve body 642 end plug 642a external thread segment 641a second dam 71 restrictor 72 base 73 chassis 731 annular groove 732 first 垣 74 sleeve 741 second 垣 82 chassis 84 bushing

Figure 1 is a schematic view of a conventional clamp mold base. 2 is a schematic view of a conventional clamp mold base. FIG. 3 is a schematic view of a clamp mold base according to a first preferred embodiment of the present invention, showing that the first mold base is not coupled to the second mold base, and the moving member is moved to the second position. . Figure 4 is a schematic view similar to Figure 3, showing that the first mold base is coupled to the second mold base, and the deformed position is at the junction of the chassis and the bottom of the sleeve. FIG. 5 is a schematic view of a second mold base of a clamp mold base according to a second preferred embodiment of the present invention. 6 is a schematic view of a second mold base of a clamp mold base according to a third preferred embodiment of the present invention. 7 is a schematic view 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 view of a second mold base of a clamp mold base according to a fifth preferred embodiment of the present invention. 9 is a schematic view of a second mold base of a clamp mold base according to a sixth preferred embodiment of the present invention.

Claims (9)

A clamp mold base includes: a first mold base including a workpiece seat plate and a pull rod, the pull rod is coupled to the workpiece seat plate and has an annular groove; and a second mold base includes a base and a An upper cover and a sleeve; the base has a first through hole, and the first perforated hole wall is provided with an internal thread segment, the upper cover is coupled to the top of the base and has a second through hole communicating with the first through hole, a sleeve is disposed in the first through hole and the second through hole, and an outer threaded surface of the sleeve is provided with an outer threaded portion and the inner threaded portion are screwed together, the bottom of the sleeve is coupled with the base, and the shaft is coupled to the base The sleeve has a shaft hole and a plurality of side holes, the side holes communicate with the shaft hole; and a clamping structure includes a moving member and a plurality of balls, the moving member is movably disposed on the base and the upper cover The moving member has a pushing portion; the balls are respectively located in a corresponding side hole; thereby, the pull rod of the first mold base passes through the shaft hole, and the moving member is controlled to be displaced and topped The push portion pushes the balls, and the ball portion falls on the ring of the pull rod Slot, so that the first block is combined with the second block. The clamp mold base of claim 1, wherein the base comprises a side wall and a chassis, the side wall is coupled to the base and coupled to the upper cover, the chassis has the first through hole; the sleeve has a connection a constricted portion and a body portion, the constricted portion is provided with the external thread segment and the internal thread segment of the first perforation is screwed, and an abutting surface and a top surface of the chassis are formed between the body portion and the constricted portion contact. The clamp mold base of claim 1, wherein the first through hole of the base has a reaming section formed from the bottom surface of the base and adjacent to the internal thread section; the bottom edge of the sleeve has a convex ring formed radially outward, the external thread segment abutting the convex ring, and the convex ring is located in the reaming segment. The clamp mold base of claim 1, wherein the base has a first dam protruding from the first perforated hole wall and located above the internal thread segment; the sleeve includes a set of body and one end plug The sleeve body has a second dam formed radially outward, the second dam abuts the first dam; the end plug has the external thread segment, and the top surface of the end plug abuts the first The bottom of the second block. A clamp mold base includes: a first mold base including a workpiece seat plate and a pull rod, the pull rod is coupled to the workpiece seat plate and has an annular groove; and a second mold base includes a base and a An upper cover and a sleeve; the base has a first through hole, the upper cover is coupled to the top of the base and has a second through hole communicating with the first through hole, the sleeve being disposed through the first through hole and the second through hole The bottom of the sleeve is coupled to 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; the base has a first stop from the first through hole a wall protrudingly, the sleeve has a second dam formed radially outward, and a top surface of the second dam abuts a bottom surface of the first dam; and a clamping structure includes a moving member And a plurality of balls, the moving member is movably disposed between the base and the upper cover, the moving member has a pushing portion; the balls are respectively located in a corresponding side holes; thereby, the first mold The lever of the seat passes through the shaft hole, and the moving member is controlled to be displaced and pushed by Pushing the plurality of balls, the balls fall in the portion of the annular groove of the rod, so that the first block is combined with the second block. The clamp mold base of claim 5, comprising a limiting member; wherein the base has an annular groove under the first dam; the limiting member is embedded in the annular groove and presses the second of the sleeve The bottom surface of the dam. The clamp mold base of claim 5, wherein the first perforated hole wall of the base is provided with an internal thread segment that abuts the first dam; the outer surface of the sleeve is provided with an externally threaded section The external thread segment abuts the second dam and is screwed to the internal thread segment. A clamp mold base includes: a first mold base including a workpiece seat plate and a pull rod, the pull rod is coupled to the workpiece seat plate and has an annular groove; and a second mold base includes a base and a An upper cover and a sleeve; the base has a first through hole, the upper cover is coupled to the top of the base and has a second through hole communicating with the first through hole, the sleeve being disposed through the first through hole and the second through hole The bottom of the sleeve is integrally formed 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 clamping structure includes a moving member and a plurality of a ball, the moving member is movably disposed between the base and the upper cover, the moving member has a pushing portion; the balls are respectively located in a corresponding side hole; thereby, the first die holder The pull rod is disposed through the shaft hole, and the moving member is controlled to be displaced and pushes the balls with the pushing portion thereof, and the ball portion falls in the annular groove of the pull rod to combine the first mold base and the second mold base . The clamp mold base of claim 1, 5 or 8, wherein the base is provided with a first passage and a second passage, and the first passage and the second passage are respectively connected to an external pressure source, wherein the introduction The pressure of the first passage causes the moving member to be in the first position, and the pressure introduced into the second passage causes the moving member to be in the second position.