CN218946069U

CN218946069U - Punching needle assembly of punching die

Info

Publication number: CN218946069U
Application number: CN202223250055.7U
Authority: CN
Inventors: 戴林峰; 马云飞
Original assignee: Wuxi Pugao Precision Machinery Technology Co ltd
Current assignee: Wuxi Pugao Precision Machinery Technology Co ltd
Priority date: 2022-12-06
Filing date: 2022-12-06
Publication date: 2023-05-02
Anticipated expiration: 2032-12-06

Abstract

The utility model discloses a punching needle assembly of a punching die, which comprises a punching needle and a fixing piece; an embedded groove is formed in the middle of the bottom of the fixing piece; the top end of the punching needle is inserted into the embedded groove; the fixing piece is provided with a containing groove; the accommodating groove is communicated with the embedded groove; a push ring is movably arranged in the accommodating groove; the push ring is provided with a limiting block through an elastic piece, and forms a combined structure with the fixing piece; the side wall of the top end of the punching needle is provided with a match; the cooperation groove corresponds to the holding tank position, rotates the push ring drives the stopper and rotates, the protruding holding tank embedding cooperation inslot of stopper, the thrust needle is spacing. The utility model provides a punching needle component of a punching die, wherein a set limiting block and a fixing piece are of a combined structure and are arranged in a non-separated mode, so that the situation that the limiting block is lost or damaged and is difficult to be embedded into a matching groove to limit and fix a punching needle is avoided.

Description

Punching needle assembly of punching die

Technical Field

The utility model relates to the field of punching pin assemblies of punching dies.

Background

The punching needle is an important component part in the processing mould and plays a role in punching parts, so that the punching needle is required to be firmly fixed on the processing mould through a fixing structure; the fixed structure of a general punch needle is that a fixed block is sleeved on the punch needle, corresponding through holes are formed in the fixed block and the punch needle, and then the fixed block is inserted into the through holes through an inserting block, so that the punch needle is fixed, but the inserting block which is arranged in a split and separated mode is easy to lose or damage, and the phenomenon that the inserting block cannot be inserted into the through holes is caused.

Disclosure of Invention

The utility model aims to: in order to overcome the defects in the prior art, the utility model provides the punching needle component of the punching die, and the arranged limiting block and the fixed piece are of a combined structure and are in a non-separated arrangement mode, so that the situation that the limiting block is lost or damaged and is difficult to be embedded into the matching groove to limit and fix the punching needle is avoided.

The technical scheme is as follows: in order to achieve the above purpose, the technical scheme of the utility model is as follows:

a punching needle assembly of a punching die comprises a punching needle and a fixing piece; an embedded groove is formed in the middle of the bottom of the fixing piece; the top end of the punching needle is inserted into the embedded groove; a containing groove is formed in the fixing piece; the accommodating groove is communicated with the embedded groove; a push ring is movably arranged in the accommodating groove; the push ring is provided with a limiting block through an elastic piece, and forms a combined structure with the fixing piece; the side wall of the top end of the punching needle is provided with a match; the cooperation groove corresponds to the holding tank position, rotates the push ring drives the stopper and rotates, the protruding holding tank embedding cooperation inslot of stopper, the thrust needle is spacing.

Further, the containing groove comprises an annular groove with an open bottom and a communicating groove; the annular groove is communicated with the embedded groove through the communicating groove; the push ring is movably arranged in the annular groove; the convex ring on the push ring is matched with the guide groove on the inner wall of the ring groove; the bottom of the push ring protrudes out of the ring groove.

Further, the limiting block is positioned in the communication groove; the limiting block is fixed on the side wall of the push ring through an elastic piece; a baffle plate is fixedly arranged at the opening of the communication groove; the baffle plate is arranged corresponding to the embedded groove.

Further, the baffle is arc-shaped; the limiting block rotates to slide along the side wall of the baffle plate, and the limiting block extrudes the elastic piece.

Further, a groove is formed in the side wall of the punching needle; the grooves are formed along the length direction of the punching needle; the grooves and the matching grooves are crisscrossed; the inner wall of the embedded groove is fixedly provided with a convex edge matched with the concave; the position of the convex rib corresponding to the communicating groove is provided with a notch.

Further, the matching groove is semicircular; the limiting block is in a blade shape, and the protruding portion of the limiting block is correspondingly matched with the matching groove.

Further, one side of the limiting block, which is back to the matching groove, is fixedly provided with a plurality of elastic pieces; the elastic pieces are inclined at intervals.

The beneficial effects are that: when the top end of the punching needle is inserted into the embedded groove of the fixing piece, the matching groove on the punching needle corresponds to the accommodating groove, the push ring is rotated at the moment, the push ring drives the limiting block to move, the limiting block protrudes out of the accommodating groove to be embedded into the matching groove under the elastic action of the elastic piece, and therefore the limiting block limits and fixes the punching needle, and further the fixing and limiting effects are achieved.

Drawings

FIG. 1 is a block diagram of a punch pin assembly;

FIG. 2 is a diagram of the structure of the fixing member;

FIG. 3 is a cross-sectional view of the fastener;

fig. 4 is a drawing of the structure of the punch pin.

Detailed Description

The utility model will be further described with reference to the accompanying drawings.

As shown in fig. 1-4: a punching needle assembly of a punching die comprises a punching needle 1 and a fixing piece 2; an embedded groove 21 is formed in the middle of the bottom of the fixing piece 2; the top end of the punch pin 1 is inserted into the embedded groove 21; the fixing piece 2 is internally provided with a containing groove 22; the accommodating groove 22 is communicated with the embedding groove 21; a push ring 3 is movably arranged in the accommodating groove 22; the push ring 3 is provided with a limiting block 32 through an elastic piece 31, and forms a combined structure with the fixing piece 2; the side wall of the top end of the punching needle 1 is provided with a matching groove 11; the matching groove 11 corresponds to the position of the accommodating groove 22, the push ring 3 is rotated to drive the limiting block 32 to rotate, the limiting block 32 protrudes out of the opening of the accommodating groove 22 and is embedded into the matching groove 11, and the punching needle 1 is limited. When the top end of the punching needle is inserted into the embedded groove of the fixing piece, the matching groove on the punching needle corresponds to the position of the accommodating groove, the push ring is rotated at the moment, the push ring drives the limiting block to move, the limiting block is protruded out of the accommodating groove under the elastic action of the elastic piece and is embedded into the matching groove, and therefore the limiting block limits and fixes the punching needle, and further the limiting effect is achieved.

The receiving groove 22 includes a ring groove 221 with an open bottom and a communication groove 222; the ring groove 221 communicates with the embedded groove 21 through a communication groove 222; the push ring 3 is movably arranged in the ring groove 221; the convex ring on the push ring 3 is matched with the guide groove on the inner wall of the ring groove 221; the bottom of the push ring 3 protrudes out of the ring groove 221. The part of the push ring protruding out of the annular groove is clamped by hands or the clamp, then the push ring is driven to rotate, the push ring drives the limiting block to rotate through the elastic piece, the limiting block protrudes out of the opening of the accommodating groove and is embedded into the matching groove, and therefore the limiting effect of the opposite punching needle is achieved.

The limiting block 32 is positioned in the communication groove 222; the limiting block 32 is fixed on the side wall of the push ring 3 through an elastic piece 31; a baffle 223 is fixedly arranged at the opening of the communication groove 222; the blocking piece 223 is arranged corresponding to the embedded groove 21. The baffle 223 is arc-shaped; the limiting block 32 rotates to slide along the side wall of the baffle, and the limiting block 32 presses the elastic piece 31. The intercommunication groove opening part sets up the separation blade, and the stopper rotates the intercommunication groove open position at the rotation in-process, and stopper protrusion intercommunication inslot is embedded to the cooperation inslot, and when the stopper rotated the separation blade position, the stopper received the shielding effect of separation blade, and stopper compression elastic component, the stopper returned to the intercommunication inslot.

A groove 12 is formed in the side wall of the punch needle 1; the groove 12 is arranged along the length direction of the punch pin 1; the groove 12 and the matching groove 11 are in a crisscross shape; the inner wall of the embedded groove 21 is fixedly provided with a convex rib 211 matched with the groove 12; the convex edge 211 is provided with a notch corresponding to the position of the communication groove 222, which is beneficial to the movement of the limiting block. The grooves are arranged to be matched with the ribs, so that the punching needle can be conveniently clamped on the ribs through the grooves, a guiding effect is achieved, and the ribs can limit the punching needle in the circumferential direction.

The matching groove 11 is semicircular; the limiting block 32 is in a blade shape, and the protruding part of the limiting block 32 is correspondingly matched with the matching groove 11; the side wall of the limiting block is a curved surface, so that the sliding of the limiting block is facilitated; a plurality of elastic pieces 31 are fixedly arranged on one side of the limiting block 32, which is opposite to the matching groove 11; the elastic pieces 31 are inclined at intervals, so that the elastic action of the elastic pieces on the limiting block is guaranteed, and meanwhile, the bending of a single elastic piece is avoided, and the limiting block is influenced to retract into the communicating groove.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the utility model described above, and such modifications and adaptations are intended to be comprehended within the scope of the utility model.

Claims

1. A die-cut mould's towards needle subassembly, its characterized in that: comprises a punch needle (1) and a fixing piece (2); an embedded groove (21) is formed in the middle of the bottom of the fixing piece (2); the top end of the punching needle (1) is inserted into the embedded groove (21); an accommodating groove (22) is formed in the fixing piece (2); the accommodating groove (22) is communicated with the embedding groove (21); a push ring (3) is movably arranged in the accommodating groove (22); a limiting block (32) is arranged on the push ring (3) through an elastic piece (31), and a combined structure is formed between the limiting block and the fixing piece (2); the side wall of the top end of the punching needle (1) is provided with a matching groove (11); the cooperation groove (11) corresponds to holding tank (22) position, rotates push ring (3) drive stopper (32) rotation, stopper (32) are outstanding holding tank (22) imbed in cooperation groove (11), and is spacing to punching needle (1).

2. A punch pin assembly of a punching die according to claim 1, wherein: the containing groove (22) comprises an annular groove (221) with an open bottom and a communicating groove (222); the ring groove (221) is communicated with the embedded groove (21) through a communication groove (222); the push ring (3) is movably arranged in the annular groove (221); the convex ring on the push ring (3) is matched with the guide groove on the inner wall of the ring groove (221); the bottom of the push ring (3) protrudes out of the annular groove (221).

3. A punch pin assembly of a punching die according to claim 2, wherein: the limiting block (32) is positioned in the communication groove (222); the limiting block (32) is fixed on the side wall of the push ring (3) through an elastic piece (31); a baffle (223) is fixedly arranged at the opening of the communication groove (222); the baffle piece (223) is arranged corresponding to the embedded groove (21).

4. A punch pin assembly of a punching die according to claim 3, wherein: the baffle (223) is arc-shaped; the limiting block (32) rotates to slide along the side wall of the baffle, and the limiting block (32) extrudes the elastic piece (31).

5. The die-cutting die punch pin assembly of claim 4, wherein: a groove (12) is formed in the side wall of the punching needle (1); the groove (12) is arranged along the length direction of the punching needle (1); the groove (12) and the matching groove (11) are in a crisscross shape; a convex rib (211) matched with the groove (12) is fixedly arranged on the inner wall of the embedded groove (21); the position of the convex edge (211) corresponding to the communication groove (222) is provided with a notch.

6. The die-cutting die punch pin assembly of claim 5, wherein: the matching groove (11) is semicircular; the limiting block (32) is in a blade shape, and the protruding part of the limiting block (32) is correspondingly matched with the matching groove (11).

7. The die-cutting die punch pin assembly of claim 6, wherein: a plurality of elastic pieces (31) are fixedly arranged on one side of the limiting block (32) back to the matching groove (11); the elastic members (31) are inclined at intervals.