CN215614445U - Anti-fracture punch structure for punching large hole - Google Patents

Abstract

The utility model relates to the technical field of part processing, and discloses a large hole punching anti-fracture punch structure, which solves the problems that a punch is in full-face contact with the surface of a part, and an axial guide groove of the punch is easy to fracture under stress; in the utility model, in the work, the bottom groove is arranged in a circular truncated cone shape, so that the bottom end of the punch block is in a circular ring shape, and then when the punch block is used for punching a part, the bottom end of the punch block is firstly contacted with the part, thereby reducing the contact area, further reducing the deflection phenomenon and prolonging the service life of the punch block.

Description

Anti-fracture punch structure for punching large hole

Technical Field

The utility model belongs to the technical field of part processing, and particularly relates to a large hole punching anti-fracture punch structure.

Background

The punching technique is commonly used in the manufacturing process of various metal components, and a punch is used to impact a metal plate at a high speed during operation, so as to form a through hole in the metal plate. Compared with laser processing, electron beam processing or etching processing, the punching processing technology has the characteristics of low equipment cost, high productivity, mass production and the like.

And the surface of the punch contacting the part is in full-surface contact during punching, so that the punch deflects due to uneven stress, and the axial guide groove of the punch is broken under stress.

SUMMERY OF THE UTILITY MODEL

Aiming at the situation, in order to overcome the defects of the prior art, the utility model provides a large-hole punching anti-fracture punch structure which effectively solves the problem that the axial guide groove of a punch is easy to fracture under stress because the punch is in full-face contact with the surface of a part.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a dash big hole and prevent drift structure that splits, includes the kicking block, the movable groove has been seted up on the top of kicking block, and the guide way has been seted up to the bottom in movable groove, and the internally mounted of movable groove has the punching press subassembly.

Preferably, the punching press subassembly is including installing in the inside roof of activity groove, and the connecting rod is installed to the bottom of roof, and the connecting rod is located the inside of guide way, and the side guide pole is still installed to the angle such as the bottom of roof, and the mid-mounting of side guide pole has the briquetting, and the spring is installed to the bottom of briquetting, and inside spring mounting was led the hole to the side, angle such as the side guide hole was seted up on the diapire of activity groove.

Preferably, the top end of the ejector block is provided with an air cylinder, and a push rod of the air cylinder is fixedly connected with the top end of the ejector plate.

Preferably, the bottom of connecting rod runs through to the bottom of kicking block, and the axial guide way has been seted up to the bottom of connecting rod, and the diameter of connecting rod sets up to 140mm, and the drift subassembly is installed to the bottom of connecting rod.

Preferably, the punch assembly comprises a punch block clamped at the bottom end of the axial guide groove, a bottom groove is formed in the bottom end of the punch block, screw holes are formed in the inner portion of the punch block and the bottom end of the connecting rod at equal angles, and fixing bolts are connected to the inner portion of the screw holes.

Preferably, the bottom groove is round table-shaped, and the bottom end of the fixing bolt is flush with the top wall of the bottom groove.

Preferably, the number of the fixing bolts is three, and the distance from the center of the fixing bolt to the center of the punch block is 90 mm.

Compared with the prior art, the utility model has the beneficial effects that:

1) in the work, the bottom groove is arranged to be in a round table shape, so that the bottom end of the punch block is in a circular ring shape, and then when the punch block is used for punching a part, the bottom end of the punch block is firstly contacted with the part, so that the contact area is reduced, the deflection phenomenon is reduced, and the service life of the punch block is prolonged;

2) in operation, fix through three fixing bolt through the connecting rod that sets up and drift piece on 90 mm's circle diameter to strengthen bolt shear strength, then strengthen the joint strength of connecting rod and drift piece, thereby make the drift piece can use not fracture for a long time, guarantee that production is smooth and easy and the continuity.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model.

In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the top block structure of the present invention;

FIG. 3 is a schematic view of the punch assembly of the present invention;

fig. 4 is a schematic structural view of the punch assembly of the present invention.

In the figure: 1. a top block; 2. a movable groove; 3. a guide groove; 4. a stamping assembly; 401. a top plate; 402. a connecting rod; 403. a side guide bar; 404. briquetting; 405. a spring; 406. a side guide hole; 407. a cylinder; 5. a punch assembly; 501. a punch block; 502. a bottom groove; 503. a screw hole; 504. and (5) fixing the bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the first embodiment, as shown in fig. 1 to 4, the utility model includes a top block 1, a movable groove 2 is formed at the top end of the top block 1, a guide groove 3 is formed at the bottom end of the movable groove 2, and a stamping assembly 4 is installed inside the movable groove 2.

In the second embodiment, on the basis of the first embodiment, the punching assembly 4 includes a top plate 401 installed inside the movable slot 2, a connecting rod 402 is installed at the bottom end of the top plate 401, the connecting rod 402 is located inside the guide slot 3, a side guide rod 403 is further installed at the bottom end of the top plate 401 at an equal angle, a pressing block 404 is installed in the middle of the side guide rod 403, a spring 405 is installed at the bottom end of the pressing block 404, the spring 405 is installed inside a side guide hole 406, the side guide hole 406 is opened on the bottom wall of the movable slot 2 at an equal angle, an air cylinder 407 is installed at the top end of the top block 1, a push rod of the air cylinder 407 is fixedly connected with the top end of the top plate 401, the bottom end of the connecting rod 402 penetrates through to the bottom end of the top block 1, an axial guide slot is formed at the bottom end of the connecting rod 402, the diameter of the connecting rod is set to be 140mm, and a punch assembly 5 is installed at the bottom end of the connecting rod 402;

after the cylinder 407 is started, the push rod of the cylinder 407 is pushed out quickly, so that the push rod presses the top plate 401 downwards quickly, the side guide rod 403 enters the side guide hole 406, the spring 405 is compressed, and the connecting rod 402 is fixedly connected with the top plate 401, so that the top plate 401 moves downwards and then drives the connecting rod 402 to move downwards along the guide groove 3, and then the punch block 501 is pushed to approach to a part below continuously.

In the third embodiment, on the basis of the second embodiment, the punch assembly 5 includes a punch block 501 clamped at the bottom end of the axial guide groove, a bottom groove 502 is formed in the bottom end of the punch block 501, screw holes 503 are formed in the punch block 501 and the bottom end of the connecting rod 402 at equal angles, a fixing bolt 504 is connected to the inside of each screw hole 503, the bottom groove 502 is in a circular truncated cone shape, the bottom end of the fixing bolt 504 is flush with the top wall of the bottom groove 502, three fixing bolts 504 are arranged, and the distance from the center of each fixing bolt 504 to the center of the punch block 501 is 90 mm;

when the bottom of the punch block 501 contacts with a part, the bottom groove 502 is formed in the bottom of the punch block 501, and the bottom groove 502 is in a circular truncated cone shape, so that the contact area of the punch block 501 is small when the punch block 501 contacts with the part, the deflection phenomenon is reduced, and the part is perforated when the punch block 501 is pressed down quickly.

The working principle is as follows: when the punch press works, firstly the top plate 401 is arranged in the movable groove 2, the bottom end of the side guide rod 403 arranged at the bottom end of the top plate 401 is inserted into the corresponding side guide hole 406, at the moment, the spring 405 is in contact with the side guide hole 406, the bottom end of the spring 405 is blocked, at the moment, the bottom end of the connecting rod 402 penetrates through the bottom end of the top block 1, the screw hole 503 on the punch block 501 is corresponding to the screw hole 503 at the bottom end of the connecting rod 402, then the fixing bolt 504 is screwed into the screw hole 503, so that the bottom end of the fixing bolt 504 is flush with the top wall of the bottom groove 502, the punch block 501 can be fixed after the fixing is finished, a part needing to be punched is fixed below the punch block 501, the air cylinder 407 is started, as the push rod of the air cylinder 407 is fixedly connected with the top plate 401, after the air cylinder is started, the push rod quickly pushes the top plate 407 downwards, so that the side guide rod 403 enters the side guide hole 406, and compresses the spring 405, because connecting rod 402 and roof 401 fixed connection, thereby make roof 401 drive connecting rod 402 after the lapse and move down along guide way 3 downstream, promote the part that drift piece 501 is constantly close the below then, when drift piece 501 bottom and part contact, because the kerve 502 has been seted up to drift piece 501 bottom, the kerve 502 is the round platform form, thereby area of contact is less when making drift piece 501 and part contact, thereby reduce the beat phenomenon, when drift piece 501 pushes down fast, carry out the trompil with the part.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a dash big hole and prevent drift structure that splits, includes kicking block (1), its characterized in that: the top of kicking block (1) has seted up movable groove (2), and guide way (3) have been seted up to the bottom in movable groove (2), and the internally mounted of movable groove (2) has punching press subassembly (4).

2. The punching large hole breakage-proof punch structure of claim 1, wherein: punching press subassembly (4) are including installing in roof (401) inside movable groove (2), connecting rod (402) are installed to the bottom of roof (401), connecting rod (402) are located the inside of guide way (3), side guide pole (403) are still installed to the bottom of roof (401) equiangular, the mid-mounting of side guide pole (403) has briquetting (404), spring (405) is installed to the bottom of briquetting (404), spring (405) are installed inside side guide hole (406), side guide hole (406) equiangular are seted up on the diapire of movable groove (2).

3. The punching large hole breakage-proof punch structure of claim 2, wherein: and the top end of the ejector block (1) is provided with an air cylinder (407), and a push rod of the air cylinder (407) is fixedly connected with the top end of the ejector plate (401).

4. The punching large hole breakage-proof punch structure of claim 2, wherein: the bottom of connecting rod (402) runs through to the bottom of kicking block (1), and the axial guide way has been seted up to the bottom of connecting rod (402), and the diameter of connecting rod (402) sets up to 140mm, and drift subassembly (5) are installed to the bottom of connecting rod (402).

5. The structure of punching large hole and preventing breakage of the punch head as claimed in claim 4, wherein: the punch assembly (5) comprises a punch block (501) clamped at the bottom end of the axial guide groove, a bottom groove (502) is formed in the bottom end of the punch block (501), screw holes (503) are formed in the inner portion of the punch block (501) and the bottom end of the connecting rod (402) at equal angles, and a fixing bolt (504) is connected to the inner portion of each screw hole (503).

6. The structure of punching large hole and preventing breakage of the punch head as claimed in claim 5, wherein: the bottom groove (502) is in a circular truncated cone shape, and the bottom end of the fixing bolt (504) is flush with the top wall of the bottom groove (502).

7. The structure of punching large hole and preventing breakage of the punch head as claimed in claim 5, wherein: the number of the fixing bolts (504) is three, and the distance from the center of the fixing bolt (504) to the center of the punch block (501) is 90 mm.

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