CN218395567U

CN218395567U - Blanking die

Info

Publication number: CN218395567U
Application number: CN202222442257.5U
Authority: CN
Inventors: 陈宥融; 史政
Original assignee: Zhejiang Taitan Co ltd
Current assignee: Zhejiang Taitan Co ltd
Priority date: 2022-09-15
Filing date: 2022-09-15
Publication date: 2023-01-31
Anticipated expiration: 2032-09-15

Abstract

A blanking die belongs to the technical field of cold stamping. The utility model discloses an upper die plate, backing plate, an upper fixed plate, mould, blanking lower mould, die shank and lower bolster in the blanking, an upper fixed plate passes through the backing plate and installs on the upper die plate, and the mould is installed in one side of an upper fixed plate in the blanking, and the drift that punches a hole is installed to an upper fixed plate's opposite side to can dismantle the connection through the drift fastening screw fastening that punches a hole, the lower mould that punches a hole is installed to the blanking lower mould, and can dismantle the connection through the lower mould fixed block fastening that punches a hole, the lower mould that punches a hole is corresponding with the drift that punches a hole. The utility model discloses increased the drift that punches a hole and the convertibility of the lower mould that punches a hole on the basis of mould upgrades at present, not only can accomplish punching a hole and the blanking of gasket, realize that the gasket that can drop into next specification after the completion of punching of a specification gasket is punched and is made, realize the serialization production of gasket, and punch a hole the drift and the whole change process of the lower mould that punches a hole, labour saving and time saving, the operation is swift convenient, has improved production efficiency.

Description

Blanking die

Technical Field

The utility model belongs to the technical field of cold stamping, specifically relate to a blanking die.

Background

The blanking is a stamping process for separating part of materials or process parts from another part of materials, process parts or waste materials by using a die, the blanking is to make the plate generate shearing deformation and separation along a certain contour line by using the cutting edge of the die, and the proportion of the blanking in the stamping production is the largest.

Chinese patent CN213703701U discloses a blanking compound die for gaskets, which comprises a lower die plate, wherein the lower die plate is connected with a male die and a female die, a movable stop pin is arranged on a fixing plate, a discharging plate is connected on the movable stop pin, a large hole punching male die and a small hole punching male die are arranged on the male die and connected with an upper die base, the upper die base is connected with a transmission device for driving the upper die base to drive the large hole punching male die and the small hole punching male die to open and close the die, and a mechanism for pushing and blanking rear parts is arranged in the upper die base; the punching die can automatically feed materials during punching, an upper die base descends during working, blanking and punching are completed by a male die, a female blanking die, a male hole punching die and a female hole punching die, a workpiece is formed, the upper die base ascends after the working is completed, when a jacking piece block touches a top dead center, a striking rod and a push plate start to work, the workpiece is pushed out from the female blanking die and falls, and punching waste materials directly fall. The die realizes that the punching and blanking of the gasket can be finished in one process, and combines two sets of dies into one, thereby reducing the cost of die manufacturing.

Although the punching and blanking of the gasket can be completed in one process, when the serial gaskets with the same punching outer diameter and the same punching inner diameter are produced in batch, as shown in fig. 7, the situation of inconvenient operation can occur, specifically: the upper die base is connected with the blanking female die, the large-hole punching male die and the small-hole punching male die through the male die fixing plate, the male die fixing plate is connected with the upper die base through the inner hexagon screw a7, the small-hole punching male die needs to be disassembled and is matched with the replacement when a gasket with a new specification is punched each time, but the male die fixing plate, the blanking female die and the large-hole punching male die can be disassembled together when the small-hole punching male die is replaced each time, the disassembled male die fixing plate, the blanking female die and the large-hole punching male die are installed during installation, the disassembly and the installation are complex, and the male die fixing plate, the blanking female die and the large-hole punching male die which do not need to be disassembled are repeatedly disassembled, so that the production efficiency is reduced; meanwhile, the punch and die are integrated and only suitable for punching gaskets of the current specification, if a gasket of another specification is punched, the punch and die need to be integrally replaced, and when the gasket serialization specification is multiple, the corresponding number of punch and die need to be prepared, so that the storage capacity is large and the manufacturing cost is increased.

Therefore, the utility model aims to provide a through quick replacement drift that punches a hole and the lower mould that punches a hole in order to realize the blanking external diameter the same, punch a hole the batch production's of the serial gasket of internal diameter change blanking mould.

Disclosure of Invention

The utility model discloses solve the technical problem that above-mentioned prior art exists, provide a blanking mould.

The above technical problem of the present invention can be solved by the following technical solutions: the utility model provides a blanking die, includes cope match-plate pattern, backing plate, an upper fixing plate, mould, blanking lower mould, die shank and lower bolster in the blanking, an upper fixing plate passes through the backing plate and installs on the cope match-plate pattern, the mould is installed in one side of an upper fixing plate in the blanking, the blanking lower mould is installed on the lower bolster to it is corresponding with the mould on the blanking, the die shank is installed on the cope match-plate pattern, the drift that punches a hole is installed to an upper fixing plate's opposite side to can dismantle the connection through the drift fastening screw fastening that punches a hole, the blanking lower mould is installed the lower mould that punches a hole to can dismantle the connection through the lower mould fixed block fastening that punches a hole, the lower mould that punches a hole is corresponding with the drift that punches a hole, the lower mould circumference external diameter that punches a hole is the same, the internal diameter that punches a hole changes.

Preferably, the other side of the upper die fixing plate is provided with a punching head mounting hole and a first fastening screw mounting hole communicated with the punching head mounting hole, the punching head fastening screw is in threaded connection with the first fastening screw mounting hole, the end part of the punching head fastening screw extends into the punching head mounting hole, and the punching head in the punching head mounting hole is abutted and fixed.

Preferably, the handle part of the punching punch extends into the punching punch mounting hole, the handle part of the punching punch is provided with an annular fixed limiting groove, and the end part of the fastening screw of the punching punch is abutted against the fixed limiting groove; the head of the punching punch extends out of the upper die fixing plate, and elastic discharging rubber is sleeved at the head of the punching punch.

Preferably, a first mounting groove is formed in the blanking lower die, a second mounting groove is formed in the punching lower die fixing block, the first mounting groove and the second mounting groove are combined to form a punching lower die mounting hole for mounting the punching lower die, the blanking lower die and the punching lower die fixing block are fixed in the punching lower die mounting hole through clamping matching of the first mounting groove and the second mounting groove, and the punching lower die fixing block is mounted on the blanking lower die through fixing block fastening screws.

Preferably, fixing block mounting holes are formed in two sides of the punching lower die fixing block, second fastening screw mounting holes corresponding to the fixing block mounting holes are formed in the blanking lower die, the fixing block fastening screws penetrate through the fixing block mounting holes and then are in threaded connection with the second fastening screw mounting holes, and the punching lower die fixing block is fixedly mounted on the blanking lower die.

Preferably, the two sides of the punching lower die fixing block are provided with concave surfaces, the blanking lower die is provided with convex surfaces corresponding to the concave surfaces, and the convex surfaces on the two sides of the blanking lower die are in H7/H6 clearance fit with the concave surfaces on the two sides of the punching lower die fixing block.

Preferably, the fixed block fastening screw is a 12.9-grade screw.

Preferably, the punch fastening screw is a 12.9 grade screw.

The utility model discloses beneficial effect who has: the utility model discloses increased the replaceability of the drift that punches a hole and the lower mould that punches a hole on the basis of mould upgrades at present, not only can accomplish punching a hole and the blanking of gasket, realize that the gasket that can drop into next specification after the completion of punching of a specification gasket is punched and is made, realize the serialization production of gasket, practiced thrift equipment resource and mould cost of manufacture, and the drift that punches a hole and the whole change process of the lower mould that punches a hole, it is laborsaving time-saving, the operation is swift convenient, production efficiency has been improved.

Drawings

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

FIG. 2 is a schematic view of a connection structure of the blanking lower die and the punching lower die of the present invention;

fig. 3 is a schematic structural view of the punching punch of the present invention;

fig. 4 is a schematic structural view of the blanking lower die of the present invention;

fig. 5 is a schematic view of a cross-sectional structure of the fixing block of the lower punching die of the present invention;

fig. 6 is a schematic structural view of the fixing block of the lower punching die of the present invention;

FIG. 7 is a schematic view of a prior art series shim with the same outside diameter and varying inside diameter of the punch.

In the figure: 1. mounting a template; 2. a base plate; 3. an upper die fixing plate; 4. blanking and upper die; 5. blanking lower die; 6. a lower template; 7. fastening screws by using the punching punches; 8. punching a punch; 9. punching a lower die fixing block; 10. punching a lower die; 11. punching a punch mounting hole; 12. a first fastening screw mounting hole; 13. fixing a limit groove; 14. elastic unloading rubber; 15. a first mounting groove; 16. a second mounting groove; 17. a fixed block mounting hole; 18. a second fastening screw mounting hole; 19. a fixing block is fastened with a screw; 20. a die shank; 21. a concave surface; 22. a convex surface.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Example (b): a blanking die is shown in figures 1-6 and comprises an upper die plate 1, a backing plate 2, an upper die fixing plate 3, a blanking upper die 4, a blanking lower die 5, a die shank 20 and a lower die plate 6 of the existing progressive die, and also comprises a replaceable punching punch 8 and a punching lower die 10; the upper die fixing plate 3 is mounted on the upper die plate 1 through a backing plate 2, namely the upper die plate 1 fixedly connects the upper die plate 1, the backing plate 2 and the upper die fixing plate 3 through threaded connecting screws, the die handle 20 is mounted on the upper die plate 1, the blanking upper die 4 is mounted on one side of the upper die fixing plate 3, the blanking lower die 5 is fixedly connected with the lower die plate 6 through screws and pins and corresponds to the blanking upper die 4, and the blanking upper die 4 is matched with the blanking lower die 5 for blanking the gasket; the punching head 8 is detachably mounted on the other side of the upper die fixing plate 3 through fastening of a punching head fastening screw 7, the punching lower die 10 is detachably mounted on the blanking lower die 5 through fastening of a punching lower die fixing block 9 and corresponds to the punching head 8, and the punching head 8 is matched with the punching lower die 10 and used for punching the gasket. The whole set of die is connected with a press sliding block through a die shank 20, the lower die plate 6 is fixed on the working table surface of the press through a pressing plate, and the press sliding block drives the upper die plate 1 to move up and down through the die shank 20 so as to complete blanking processing of the gasket.

The blanking die is improved on the basis of the existing progressive die, the punching punch 8 and the lower punching die 10 which can be replaced quickly are added, blanking and punching of the gasket can be completed in one process, the gasket of the next specification can be punched after the gasket of one specification is punched, and batch production of serialized gaskets with the same blanking outer diameter and the same punching inner diameter is realized. The punching punches 8 are arranged in a plurality according to the specification of the gasket, the punch size of each punching punch 8 is different, and the punch size of each punching punch 8 corresponds to the specification of the inner diameter of one punched hole of the gasket; the lower mould 10 that punches a hole is provided with a plurality ofly according to the gasket specification, and every lower mould 10 that punches a hole's blanking external diameter is the same, but the internal diameter diverse that punches a hole, and every lower mould 10 that punches a hole all corresponds a gasket specification, and the external diameter of each specification gasket is the same, but the internal diameter diverse.

The opposite side of upper die fixing plate 3 is seted up punch mounting hole 11 and is reached the first fastening screw mounting hole 12 that is linked together with punch mounting hole 11, and punch mounting hole 11 vertically sets up, and first fastening screw mounting hole 12 transversely sets up, the first fastening screw mounting hole 12 of punch fastening screw 7 threaded connection that punches a hole, the tip of punch fastening screw 7 that punches a hole extends to in the punch mounting hole 11 that punches a hole to firmly the butt in the one side of the drift 8 that punches a hole of installing in punch mounting hole 11, the tip of punch fastening screw 7 and the drift mounting hole 11 that punches a hole keep away from one side inner wall of punch fastening screw 7 and cooperate, and 8 centre gripping of the drift that will punch a hole are spacing fixed.

In order to improve the clamping and fixing effects of the punching punch 8, a fixed limiting groove 13 is formed in the outer surface of the handle part of the punching punch 8, the fixed limiting groove 13 is of an annular structure, during installation, the handle part of the punching punch 8 is installed in the punching punch installation hole 11, and the end part of the punching punch fastening screw 7 extends into the punching punch installation hole 11 and is firmly abutted against the fixed limiting groove 13; the head of the punching punch 8 extends out of the upper die fixing plate 3, and the elastic discharging rubber 14 is sleeved at the head of the punching punch 8. The end part of the fastening screw 7 of the punching punch extends into the fixed limiting groove 13 and abuts against the fixed limiting groove 13, so that the punching punch 8 can be limited, and the punching punch 8 is prevented from being separated from the punching punch mounting hole 11 under the unloading force in the blanking process. The punch fastening screw 7 adopts a 12.9-grade screw to ensure the stability of connection.

The blanking lower die 5 is provided with a first mounting groove 15 matched with the punching lower die 10, the punching lower die fixing block 9 is provided with a second mounting groove 16 matched with the punching lower die 10, the first mounting groove 15 and the second mounting groove 16 are combined to form a punching lower die mounting hole matched with the appearance of the punching lower die 10, the punching lower die mounting hole is of a circular truncated cone hole structure, the aperture of the upper end of the punching lower die mounting hole is slightly smaller than that of the lower end of the punching lower die mounting hole, during installation, the punching lower die fixing block 9 is installed on the blanking lower die 5 through a fixing block fastening screw 19, so that the first mounting groove 15 and the second mounting groove 16 are spliced to form a lower die mounting hole, and the punching lower die 10 is fixed in the formed lower die mounting hole through clamping.

The lower punching die fixing block 9 is made of 45# steel, is integrally quenched, and has surface roughness of Ra1.6mm except for two sides (locking ends). Fixing block mounting holes 17 are formed in two sides (locking ends) of the punching lower die fixing block 9, second fastening screw mounting holes 18 corresponding to the fixing block mounting holes 17 are formed in the blanking lower die 5, the second fastening screw mounting holes 18 are matched with the fixing block fastening screws 19, the fixing block fastening screws 19 penetrate through the fixing block mounting holes 17 and then are in threaded connection with the second fastening screw mounting holes 18, and the punching lower die fixing block 9 is fixedly mounted on the blanking lower die 5. Concave surfaces 21 are arranged on two sides of the punching lower die fixing block 9, convex surfaces 22 corresponding to the concave surfaces 21 are arranged on the blanking lower die 5, and the convex surfaces 22 on the two sides of the blanking lower die 5 are in clearance fit with the concave surfaces 21 on the two sides of the punching lower die fixing block 9 by H7/H6, so that the punching lower die fixing block 9 is accurately positioned.

As shown in fig. 7, when the gasket of one specification is punched and the gasket of the other specification is punched, the fastening screw 7 of the punching punch is unscrewed, the punching punch 8 can be separated from the mounting hole 11 of the punching punch for replacement, after the corresponding punching punch 8 is replaced, a new punching punch 8 is installed in the mounting hole 11 of the punching punch, and the fastening screw 7 of the punching punch is screwed to complete the installation and fixation of the new punching punch 8, so that the quick replacement, the disassembly and the installation of the punching punch 8 can be realized to match the punched gasket of the corresponding specification; through unscrewing fixed block fastening screw 19, make lower mould fixed block 9 and blanking lower mould 5 phase separation punch a hole, the lower mould 10 that will punch a hole takes out from the lower mould mounting hole and changes, change corresponding lower mould 10 that punches a hole after, put into the lower mould mounting hole with new lower mould 10 that punches a hole, and it is fixed mutually with blanking lower mould 5 through screwing up fixed block fastening screw 19 to lower mould fixed block 9 that will punch a hole, thereby to punch a hole lower mould 10 fixed mounting in the lower mould mounting hole, adopt above-mentioned mode, can realize the quick replacement of lower mould 10 that punches a hole, dismantle and install, in order to match to punch corresponding gasket. Through the quick replacement of punch 8 and the lower mould 10 that punches a hole, can realize that the gasket punching of next specification can be put into after the completion punching of a specification gasket to realize that the blanking external diameter is the same, the batch production of the serial gasket of the internal diameter change that punches a hole, and in the change process of punch 8 and the lower mould 10 that punches a hole, need not to dismantle current mould that upgrades, need not to dismantle current backing plate 2, upper fixing plate 3, mould 4 and the lower mould 5 of blanking that upgrades the mould promptly.

To sum up, the utility model discloses increased the replaceability of the drift that punches a hole and the lower mould that punches a hole on the basis of mould upgrades at present, not only can accomplish punching a hole and the blanking of gasket, realize that the gasket that can drop into next specification after the completion of punching of a specification gasket is punched and is made, realize the serialization production of gasket, practiced thrift equipment resource and mould cost of manufacture, and the drift that punches a hole and the whole change process of the lower mould that punches a hole, labour saving and time saving, the operation is swift convenient, has improved production efficiency.

Finally, it should be noted that the above embodiments are merely representative examples of the present invention. Obviously, the present invention is not limited to the above-described embodiments, and many modifications are possible. Any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should be considered as belonging to the protection scope of the present invention.

Claims

1. The utility model provides a blanking die, includes cope match-plate pattern (1), backing plate (2), cope match-plate pattern (3), blanking go up mould (4), blanking lower mould (5), die shank (20) and lower bolster (6), install on cope match-plate pattern (1) through backing plate (2) in cope match-plate pattern (3), install one side at cope match-plate pattern (3) in blanking last mould (4), install on lower bolster (6) blanking lower mould (5) to it is corresponding with mould (4) in the blanking, install on cope match-plate pattern (1) die shank (20), its characterized in that, punch drift (8) are installed to the opposite side of cope match-plate pattern (3) to can dismantle the connection through the fastening of punch drift fastening screw (7), lower mould (10) of punching a hole are installed to blanking lower mould (5) to can dismantle the connection through the fastening of lower mould fixed block (9) of punching a hole, lower mould (10) of punching a hole are corresponding with punch drift (8), lower mould (10) of punching a hole circumference external diameter is the same, the internal diameter of punching a hole changes.

2. The blanking die of claim 1, wherein the other side of the upper die fixing plate (3) is provided with a piercing punch mounting hole (11) and a first fastening screw mounting hole (12) communicated with the piercing punch mounting hole (11), the piercing punch fastening screw (7) is in threaded connection with the first fastening screw mounting hole (12), and the end of the piercing punch fastening screw (7) extends into the piercing punch mounting hole (11) to abut and fix the piercing punch (8) in the piercing punch mounting hole (11).

3. A blanking die as claimed in claim 2, characterized in that the shank of the piercing punch (8) extends into the piercing punch mounting hole (11), the shank of the piercing punch (8) being provided with an annular fixing and limiting groove (13), the end of the piercing punch fastening screw (7) abutting against the fixing and limiting groove (13); the head of the punching punch (8) extends to the outside of the upper die fixing plate (3), and elastic discharging rubber (14) is sleeved at the head of the punching punch (8).

4. A blanking die according to claim 1, wherein a first mounting groove (15) has been provided in the blanking lower die (5), a second mounting groove (16) has been provided in the punching lower die fixing block (9), the first mounting groove (15) and the second mounting groove (16) combine to form a punching lower die mounting hole for mounting the punching lower die (10), the blanking lower die (5) and the punching lower die fixing block (9) fix the punching lower die (10) in the punching lower die mounting hole by clamping cooperation of the first mounting groove (15) and the second mounting groove (16), respectively, and the punching lower die fixing block (9) is mounted on the blanking lower die (5) by fixing block fastening screws (19).

5. The blanking die of claim 4, wherein fixing block mounting holes (17) are formed in two sides of the lower punching die fixing block (9), second fastening screw mounting holes (18) corresponding to the fixing block mounting holes (17) are formed in the lower blanking die (5), and the lower punching die fixing block (9) is fixedly mounted on the lower blanking die (5) by passing the fixing block fastening screws (19) through the fixing block mounting holes (17) and then being in threaded connection with the second fastening screw mounting holes (18).

6. The blanking die of claim 4, wherein concave surfaces (21) are arranged on two sides of the lower punching die fixing block (9), a convex surface (22) corresponding to the concave surface (21) is arranged on the lower blanking die (5), and the convex surfaces (22) on two sides of the lower blanking die (5) and the concave surfaces (21) on two sides of the lower punching die fixing block (9) are in clearance fit with each other at H7/H6.

7. Blanking die according to claim 4, characterized in that the fixing block fastening screws (19) are 12.9 grade screws.

8. Blanking die according to claim 1, characterized in that the pierce punch fastening screws (7) are 12.9 grade screws.