CN204736439U - Elasticity pressure equipment anchor clamps - Google Patents

Abstract

The utility model discloses an elastic press-fitting fixture. When in use, the fixture is firstly put into the formwork, and then the workpiece to be assembled is placed above the supporting part of the lower clamping part. The positioning part is installed through the cooperation of the first guiding structure and the second guiding structure. On the lower clamp, the positioning protrusion of the positioning piece positions the corresponding part of the belt assembly workpiece, the upper die presses down on the upper clamp, the force application part of the upper clamp applies force to the workpiece to be assembled, the spring is compressed by force, and the positioning piece moves toward Move in the cavity, after the workpiece is assembled and formed, the pressure of the upper clamp disappears, the spring returns, and the positioning part moves downward to eject the workpiece. Through the above-mentioned optimally designed elastic press-fitting fixture, through the process of pressing in and popping out, it replaces the original pressing in and pressing out twice, which is convenient to use, reduces energy consumption, and reduces the increase in machining accuracy and the cost caused by the ejector pin. When the product is scrapped, elastic parts are used to play a buffer role, so that the fixture will not be crushed due to excessive instantaneous pressure, thereby prolonging the service life of the fixture.

Description

A kind of elastic pressing fixture

technical field

The utility model relates to the technical field of rubber processing, in particular to an elastic pressing fixture.

Background technique

With the increasing complexity of rubber products, some products need to be vulcanized and then press-fitted. The traditional press-fit fixture relies on the pressure of the press to press the product into a fixed cavity for press-fit molding; then use the ejector pin to eject the product. The use of the ejector pin will lead to the improvement of the precision requirements of the fixture and the improvement of the processing difficulty; it will also cause the product to be damaged due to the unbalanced force of the ejector. Therefore, there is a need for a press-fitting fixture, which is simple in processing, long in service life, and capable of improving the qualified rate of products.

Utility model content

In order to solve the technical problems existing in the background technology, the utility model proposes an elastic press-fitting fixture.

The utility model proposes an elastic press-fitting fixture, comprising: an upper clamping piece, a positioning piece, an elastic piece, and a lower clamping piece;

The inside of the upper clamp has a cavity extending from one end to the middle. The bottom of the cavity has an opening. The upper clamp is provided with a force application part at one end of the opening. The positioning part is located in the cavity, and the positioning part can move along the cavity. Move in the extension direction so that one end protrudes from the opening, the elastic member is located in the cavity, one end is against the upper clamping part, the other end is against the positioning part, and the end of the positioning part away from the elastic part is provided with a positioning part that cooperates with the workpiece a protrusion and a first guide structure;

The lower clamping part is located under the positioning part, and the top of the lower clamping part is provided with a second guiding structure and a supporting part, the supporting part is located under the positioning protrusion, and the second guiding structure is located under the first guiding structure and cooperates with the first guiding structure.

Preferably, the bottom of the upper clip cavity is provided with a first installation groove, and the positioning member is provided with a second installation groove on the side close to the elastic member. The elastic member is vertically arranged with one end in the first installation groove and the other end in the second installation groove. in the slot.

Preferably, a first limiting portion is provided on the inner wall of the cavity of the upper clip, a second limiting portion is provided on the outer edge of one end of the positioning member close to the elastic member, and the first limiting portion is located at a side of the second limiting portion away from the elastic member. side, and the outer diameter of the second limiting part is larger than the inner diameter of the first limiting part.

Preferably, the outer edge of the second limiting portion abuts against the inner wall of the cavity.

Preferably, the upper clamp includes a first mold part and a second mold part, and the first mold part and the second mold part are detachably connected.

Preferably, the first installation groove is located on a side of the first mold part facing the positioning member, and the force application part is located at an end of the second mold part away from the first mold part.

Preferably, the top end of the positioning protrusion has a smooth transition.

In the utility model, when using the proposed elastic press-fitting fixture, first put the fixture into the formwork, and then put the workpiece to be assembled above the supporting part of the lower clamping part, and the positioning part cooperates with the first guiding structure and the second guiding structure Installed on the lower clamping piece, the positioning protrusion of the positioning piece positions the corresponding part of the belt assembly workpiece, the upper mold presses down on the upper clamping piece, the force application part of the upper clamping piece applies force to the workpiece to be assembled, the spring is compressed by force, and the positioning piece Move into the cavity, after the workpiece is assembled and formed, the pressure of the upper clamp disappears, the spring returns, and the positioning part moves downward to push the workpiece out. Through the above-mentioned optimally designed elastic press-fitting fixture, through the process of pressing in and popping out, it replaces the original pressing in and pressing out twice, which is convenient to use, reduces energy consumption, and reduces the increase in machining accuracy and the cost caused by the ejector pin. When the product is scrapped, elastic parts are used to play a buffer role, so that the fixture will not be crushed due to excessive instantaneous pressure, thereby prolonging the service life of the fixture.

Description of drawings

Fig. 1 is a structural schematic diagram of an elastic press-fitting fixture proposed by the utility model.

Detailed ways

As shown in FIG. 1 , FIG. 1 is a structural schematic diagram of an elastic press-fitting fixture proposed by the utility model.

Referring to Fig. 1, the utility model proposes an elastic press fitting fixture, comprising: an upper clamping piece 1, a positioning piece 2, an elastic piece 3, and a lower clamping piece 4;

The upper clamp 1 includes a first mold part 11 and a second mold part 12, the first mold part 11 and the second mold part 12 are detachably connected, and the inside of the upper clamp 1 has a One end extends to the cavity of the first mold part 11, the cavity has an opening at one end of the second mold part 12, and the end of the second mold part 12 away from the first mold part 11 is provided with a force application part, and the first mold part 11 faces the second mold part 12. One side of the mold part 12 is provided with a first installation groove, and the inner wall of the second mold part 12 is provided with a first limiting part;

The positioning part 2 is located in the cavity, the side of the positioning part 2 facing the first mounting groove is provided with a second mounting groove, and the end of the positioning part 2 away from the elastic part 3 is provided with a positioning protrusion 21 and a second A guide structure 22, the top end of the positioning protrusion 21 is smoothly transitioned, and the outer edge of the positioning member 2 is provided with a second limiter, the first limiter is located on the side of the second limiter away from the elastic member 3, and the second limiter The outer edge of the upper portion is against the inner wall of the cavity, and the positioning member 2 can move along the extending direction of the cavity so that one end thereof can protrude from the opening;

The elastic member 3 is located in the cavity, one end of which is located in the first installation groove and abuts against the first mold part 11, and the other end is located in the second installation groove and abuts against the positioning member 2;

The lower clamping part 4 is located below the positioning part 2, and the top of the lower clamping part 4 is provided with a second guide structure 41 and a support part, the support part is located below the positioning protrusion 21, and the second guide structure 41 is located below the first guide structure 22 and is connected to the first guide structure 22. A guiding structure 22 cooperates.

The elastic press fitting fixture in this embodiment, when in use, first install the fixture into the formwork, and then put the workpiece to be assembled above the support part of the lower clamp, and the positioning part is installed through the cooperation of the first guide structure and the second guide structure On the lower clamp, the positioning protrusion of the positioning piece positions the corresponding part of the belt assembly workpiece, the upper die presses down on the upper clamp, the force application part of the upper clamp applies force to the workpiece to be assembled, the spring is compressed by force, and the positioning piece moves toward Move in the cavity, after the workpiece is assembled and formed, the pressure of the upper clamp disappears, the spring returns, and the positioning part moves downward to eject the workpiece.

In this embodiment, the proposed elastic press-fitting fixture replaces the original press-in and press-out twice through the press-in and pop-up process, which is convenient to use, reduces energy consumption, and reduces the processing cost caused by the ejector pin. The improvement of precision and the scrapping of products, at the same time, elastic parts are used to play a buffer role, so that the fixture will not be crushed due to excessive instantaneous pressure, thereby prolonging the service life of the fixture.

In a specific embodiment, the upper clamping part 1 includes a first mold part and a second mold part, and the first mold part and the second mold part are detachably connected, which is convenient for processing, and at the same time, it is convenient for the positioning part and the elastic part to be installed in the cavity.

The top end of the positioning protrusion 21 has a smooth transition to avoid damage to the workpiece when positioning the workpiece.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. Any equivalent replacement or change of the new technical solution and the concept of the utility model shall be covered by the protection scope of the utility model.

Claims (7)

1. An elastic press-fit fixture, characterized in that it comprises: an upper clamp (1), a positioning component (2), an elastic component (3), and a lower clamp (4); The upper clamp (1) has a cavity extending from one end to the middle inside, the bottom of the cavity has an opening, the upper clamp (1) is provided with a force application part at one end of the opening, and the positioning member (2) is located in the cavity , the positioning member (2) can move along the extending direction of the cavity, so that one end thereof can protrude from the opening, the elastic member (3) is located in the cavity, and one end thereof abuts against the upper clamping member (1), The other end is against the positioning piece (2), and the end of the positioning piece (2) away from the elastic piece (3) is provided with a positioning protrusion (21) and a first guide structure (22) that cooperate with the workpiece to be processed; The lower clip (4) is located below the positioning part (2), the top of the lower clip (4) is provided with a second guide structure (41) and a support part, the support part is located below the positioning protrusion (21), and the second guide structure ( 41) Located below the first guiding structure (22) and cooperating with the first guiding structure (22). 2. The elastic press-fitting fixture according to claim 1, characterized in that a first installation groove is provided at the bottom of the cavity of the upper clamp (1), and a second installation groove is provided on the side of the positioning member (2) close to the elastic member , the elastic member (3) is arranged vertically and one end is located in the first installation groove, and the other end is located in the second installation groove. 3. The elastic press-fitting fixture according to claim 1, characterized in that, the inner wall of the cavity of the upper clamping piece (1) is provided with a first limiting portion, and the positioning piece (2) is close to one end of the elastic piece (3). The edge has a second limiting part, the first limiting part is located on the side of the second limiting part away from the elastic part (3), and the outer diameter of the second limiting part is larger than the inner diameter of the first limiting part. 4 . The elastic press-fitting fixture according to claim 1 , wherein the outer edge of the second limiting portion abuts against the inner wall of the cavity. 5 . 5. The elastic press-fitting fixture according to claim 2, characterized in that, the upper clamp (1) comprises a first mold portion (11) and a second mold portion (12), and the first mold portion (11) and the second mold portion The second mold part (12) is detachably connected. 6. The elastic press-fitting fixture according to claim 5, characterized in that, the first installation groove is located on the side of the first mold part (11) facing the positioning part (3), and the force application part is located on the second mold part ( 12) One end away from the first mold part (11). 7. The elastic press-fitting fixture according to claim 1, characterized in that the top end of the positioning protrusion (21) has a smooth transition.