CN216461179U

CN216461179U - Terminal stamping die

Info

Publication number: CN216461179U
Application number: CN202122858912.0U
Authority: CN
Inventors: 胥骁; 耿义林; 贺芳; 汪美美
Original assignee: Suzhou Goutech Precision Technology Co ltd
Current assignee: Suzhou Goutech Precision Technology Co ltd
Priority date: 2021-11-19
Filing date: 2021-11-19
Publication date: 2022-05-10
Anticipated expiration: 2031-11-19

Abstract

The utility model discloses a terminal stamping die, which is applied to the field of stamping dies and solves the technical problem that when the existing stamping die is used for stamping a workpiece with a thin material, the workpiece is broken and torn; the terminal die assembly comprises a pre-processing punch and a forming punch arranged behind the pre-processing punch; the bracket die assembly comprises a first bracket punch and a second bracket punch which are arranged side by side along the moving direction of the workpiece; the connecting die assembly comprises a first connecting punch and a second connecting punch; a half-shearing die is fixed on the upper template; the technical effect that the terminal die assembly, the support die assembly and the connecting die assembly are sequentially arranged, the two sides of the workpiece are firstly stamped and then connected, and the workpiece is prevented from being locally torn due to continuous accumulation of stress of the pressed edge of the workpiece.

Description

Terminal stamping die

Technical Field

The utility model relates to the field of stamping dies, in particular to a terminal stamping die.

Background

Stamping is a press working method in which a die mounted on a press is used to apply pressure to a material at room temperature to cause separation or plastic deformation of the material, thereby obtaining a desired part.

At present, chinese patent with publication number CN104014659B discloses a connecting terminal progressive stamping die, which includes an upper die plate, a lower die plate, and a guide pillar and guide sleeve structure arranged in the upper die plate and the lower die plate bracket, wherein a leveling station and a punching and cutting station are sequentially arranged between the upper die plate and the lower die plate along a horizontal direction, a first upper movable die, a first upper punch die and a second upper movable die are sequentially arranged on a lower end surface of the upper die plate at the leveling station from front to back, and a first lower punch die, a lower movable die and a second lower punch die are arranged on an upper end surface of the corresponding lower die plate; and a third upper movable die is arranged on the lower end face of the upper template of the punching and cutting station, and a third lower punching die is arranged on the upper end face of the lower template.

Although the progressive stamping die for the wiring terminal realizes stamping of the terminal, the terminal has the characteristics of thin material, complex shape, high precision requirement and slender appearance, in the actual stamping process, a gap between the terminals is stamped by adopting a one-time stamping mode, and then the terminals are cut off from a workpiece, but the problems of terminal fracture, tearing and the like caused by the material and the shape of the terminal are often caused by the mode.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a terminal stamping die which has the advantages that gaps among terminals are stamped step by step, and the influence of the stamping die on the terminals is reduced.

The technical purpose of the utility model is realized by the following technical scheme: a terminal stamping die comprises an upper die plate, a lower die plate and a guide pillar and guide sleeve structure arranged between the upper die plate and the lower die plate;

a terminal die stamping component, a bracket die stamping component and a connecting die stamping component are sequentially arranged between the upper template and the lower template; the lower template is provided with a female die matched with the terminal die assembly, the bracket die assembly and the connecting die assembly;

the terminal stamping die assembly comprises a preprocessing stamping head arranged at the feed end of the die and a forming stamping head arranged behind the preprocessing stamping head;

the support die assembly comprises a first support punch and a second support punch which are arranged side by side along the moving direction of the workpiece;

the connecting die assembly includes a first connecting punch and a second connecting punch that separate adjacent terminals; and a half-shearing die for stamping a workpiece is also fixed on the upper template.

Through the technical scheme, the terminal die assembly, the bracket die assembly and the connecting die assembly are sequentially arranged, so that a workpiece is processed step by step, and the workpiece is prevented from being torn due to one-time stamping; the terminal die assembly and the support die assembly punch two sides of a workpiece to punch out the approximate shape of the product, the product is punched by the connection die assembly, the support and the terminal of the product are connected, the two sides are punched firstly, the two sides are connected at the middle position of punching, and the phenomenon that when the workpiece is punched, the deformation of the workpiece caused by punching is accumulated continuously to cause the appearance of the extruded product to be unsatisfactory, and the stress of the pressed edge of the workpiece is accumulated continuously to cause the local tearing of the workpiece is prevented.

The utility model is further configured to: and a material guide plate is fixed on one side of the lower template, which is close to the upper template, and is arranged at the feed end of the die.

Through the technical scheme, the material guide plate is arranged at the feeding end of the die and guides the workpiece to enable the workpiece to be parallel to the die.

The utility model is further configured to: the lower template is fixed with a stop block on one side of a workpiece, a plurality of floating blocks are arranged on the other side of the workpiece side by side, and a sliding groove for the workpiece to slide is formed in each floating block.

Through the technical scheme, the sliding groove is formed in the floating material block, the floating material block is arranged on the lower template in a floating mode, and the floating material block is used for driving the workpiece to move up and down; the stop block is arranged on the other side of the workpiece and is abutted against the workpiece to prevent the workpiece from sliding out of the sliding groove.

The utility model is further configured to: and the upper template is fixedly provided with a positioning punch die which is arranged at the feed end of the workpiece.

Through the technical scheme, the positioning punching die is fixed at the feed end of the workpiece, so that the workpiece is conveniently positioned, and meanwhile, the subsequent punching die component is conveniently positioned during punching.

The utility model is further configured to: and a material cutting and punching die is arranged at the discharge end of the die.

Through the technical scheme, the blanking punch die is fixed at the discharge end of the die and used for cutting and scattering the punched products.

The utility model is further configured to: and a lower die base is arranged below the lower die plate, and a positioning pin is arranged between the lower die base and the lower die plate.

Through above-mentioned technical scheme, the locating pin setting is between lower bolster and die holder for connect lower bolster and die holder, guarantee both connection accuracy nature.

The utility model is further configured to: lower bolster below is provided with the lower bolster, the lower bolster is provided with the polylith along the moving direction of work piece, be equipped with the slope slide of the garbage collection of being convenient for between the adjacent lower bolster.

Through above-mentioned technical scheme, the slope slide setting is between adjacent lower bolster, transports the waste material of stamping die assembly extrusion, and then the collection of the waste material of being convenient for.

The utility model is further configured to: and a photoelectric sensor for detecting the ejection of the waste material from the female die is arranged on the lower template.

Through above-mentioned technical scheme, photoelectric sensing ware sets up on the lower bolster, detects the lower bolster surface, and when the waste material did not flow into the slope slide but pop out the die, the die closing is suspended, prevents that work piece and die assembly's drift is impaired.

In conclusion, the utility model has the following beneficial effects:

1. the terminal die assembly, the bracket die assembly and the connecting die assembly are sequentially arranged, so that two sides of a workpiece are stamped firstly and then connected, and the problems that the shape of a stamped product is not satisfactory due to continuous accumulation of workpiece deformation caused by stamping and the local tearing of the workpiece due to continuous accumulation of stress of a pressed edge of the workpiece when the workpiece is stamped are prevented;

2. through setting up photoelectric sensing ware, be convenient for detect the waste material, the mould compound die when preventing that the waste material from popping out the die.

Drawings

Fig. 1 is an overall configuration diagram of the present embodiment;

FIG. 2 is a schematic view of a fitting structure of the lower template and the workpiece in this embodiment;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;

FIG. 4 is a schematic structural view of the lower template of the present embodiment;

fig. 5 is a schematic view of a matching structure of the lower template and the lower die holder in the embodiment.

Reference numerals: 1. an upper die holder; 2. mounting a template; 3. a lower template; 4. a lower die holder; 5. a terminal die assembly; 6. a bracket die assembly; 7. connecting the die assembly; 8. a terminal; 9. a connecting portion; 10. a support; 11. a guide sleeve; 12. an upper base plate; 13. a stopper plate; 14. a material removing plate; 15. positioning a stamping die; 16. semi-shearing and punching; 17. cutting and punching; 18. pre-processing a punch; 19. forming a punch; 20. a first cradle punch; 21. a second bracket punch; 22. a first connecting punch; 23. a second connecting punch; 24. a material guide plate; 25. a float block; 26. a stopper; 27. a lower base plate; 28. positioning pins; 29. a lower foot pad; 30. inclining the slideway; 31. and (6) a guide pillar.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b):

referring to fig. 1 and 4, a terminal stamping die comprises an upper die holder 1, an upper die plate 2, a lower die plate 3 and a lower die holder 4 which are sequentially arranged, wherein a terminal stamping die assembly 5, a bracket stamping die assembly 6 and a connecting stamping die assembly 7 are fixed on the upper die plate 2, and a female die matched with the terminal stamping die assembly 5, the bracket stamping die assembly 6 and the connecting stamping die assembly 7 is installed on the lower die plate 3; the upper die holder 1 and the lower die holder 4 are used for mounting and fixing various parts, the upper die plate 2 and the lower die plate 3 are used for mounting a stamping die and a female die, and the terminal stamping die assembly 5 is arranged at the feed end of the die and used for stamping one side of a workpiece; the bracket die assembly 6 is arranged behind the terminal stamping assembly and used for stamping the other side of the workpiece; and connecting the discharge end of the punch die assembly 7 close to the die, and punching the workpiece to form the middle position of the workpiece.

Referring to fig. 1 and 2, the product includes three terminals 8 arranged side by side, a connecting portion 9 fixedly connected to the terminals 8, and a holder 10 disposed at an end of the connecting portion 9 away from the terminals 8; the connecting part 9 is provided with a groove at the joint with the support 10, and the support 10 is provided with a through hole.

Referring to fig. 1 and 4, the upper die holder 1 is a rectangular plate, and guide sleeves 11 are arranged at four corners of the upper die holder 1; an upper backing plate 12 is arranged between the upper die holder 1 and the upper die plate 2, and the upper backing plate 12 bears the stress yielding of the terminal die assembly 5, the bracket die assembly 6 and the connecting die assembly 7 in the stamping process, so that the upper die holder 1 is prevented from generating concave deformation; the upper die holder 1, the upper backing plate 12 and the upper die plate 2 are fixedly connected; a stop plate 13 is arranged below the upper template 2, and the stop plate 13 is fixedly connected with the upper template 2, moves along with the movement of the upper template 2 and is used for fixing the die assembly; and a stripper plate 14 is connected below the stop plate 13, the stripper plate 14 is abutted against the workpiece, and the die assembly is separated from the workpiece after the punching is finished.

Referring to fig. 2, 3 and 4, the terminal die assembly 5, the bracket die assembly 6 and the connecting die assembly 7 are sequentially arranged on the upper die base 1 along the moving direction of the workpiece, a positioning die 15 is further arranged in front of the terminal die assembly 5, and a half-shearing die 16 and a material cutting die 17 are arranged on one side of one end, close to a die discharge port, of the connecting die assembly 7; the positioning punch die 15 is cylindrical, the positioning punch die 15 is arranged on one side of the workpiece, and a through hole is punched in the workpiece during die assembly; the terminal die assembly 5 comprises a pre-machining punch 18 disposed behind the positioning die 15 and a forming punch 19 disposed behind the pre-machining punch 18, the pre-machining punch 18 punches out the end of the terminal 8 remote from the holder 10 and pre-chamfers the terminal 8, the forming punch 19 punches out the general shape of the terminal 8; the holder die assembly 6 includes a first holder punch 20 and a second holder punch 21 provided behind the forming punch 19, which are arranged in parallel in the moving direction of the workpiece, the first holder punch 20 being provided in front of the second holder punch 21; the connecting punch die assembly 7 comprises a first connecting punch 22 and a second connecting punch 23 which are arranged behind the bracket punch die assembly 6, the first connecting punch 22 is formed by combining two symmetrically arranged punches, the second connecting punch 23 is in a long strip shape, and the second connecting punch 23 is communicated with grooves punched by the bracket punch die assembly 6 and the terminal 8 punch die assembly 5; the half-shearing die 16 is arranged between the first connecting die and the second connecting die, and the half-shearing die 16 is two rectangles which are symmetrically arranged; the blanking punch die 17 is arranged at the discharge end of the die and used for dividing a punched product and a workpiece, and the blanking punch die 17 and the bracket punch die assembly 6 are arranged on the same side; the half shear die 16 is disposed on one side of the workpiece; and the half shear die 16 is disposed on the side of the middle near the blanking die 17.

Referring to fig. 2 and 4, the lower die plate 3 is provided with material guiding plates 24 at the feeding end of the die, the material guiding plates 24 are arranged at two sides of the workpiece, the material guiding plates 24 are abutted against the two sides of the workpiece, the material guiding plates 24 comprise two pieces, one material guiding plate 24 extends to the pre-processing punch 18, and the other material guiding plate 24 extends to the positioning punch die 15; a plurality of baffle blocks 26 are arranged side by side, the floating block 25 is arranged on the other side, a sliding groove is arranged on the floating block 25, one side of the workpiece stamping support 10 is inserted into the sliding groove and is abutted against the floating block 25; the lower template 3 is provided with a photoelectric sensor.

Referring to fig. 1 and 5, a lower backing plate 27 is arranged between the lower template 3 and the lower die holder 4, the lower backing plate 27 is fixedly connected with the lower die holder 4, a positioning pin 28 is arranged between the lower template 3 and the lower die holder 4 as well as between the lower backing plate 27, the positioning pin 28 is fixed on the lower backing plate 27, and a through hole for the positioning pin 28 to pass through is formed in the lower template 3; a lower foot pad 29 is arranged below the lower die holder 4, two lower foot pads 29 are arranged side by side, and an inclined slideway 30 is arranged between the two lower foot pads 29; the size of the lower die holder 4 is consistent with that of the upper die holder 1, and guide posts 31 matched with the guide sleeves 11 are arranged at four corners of the lower die holder 4.

Working process and principle of the embodiment

Placing a workpiece between the stripper plate 14 and the lower die plate 3 and between the two material guide plates 24, inserting one end of the workpiece into a sliding groove of a floating material block 25, moving the workpiece to the discharge end of the die, punching a through hole on one side of the workpiece by the positioning punch die 15 when the die is closed for the first time, punching the other side of the workpiece by the pre-processing punch 18, and then opening the die; the second die-closing forming punch 19 punches the workpiece to punch the workpiece into the shape of the terminal 8; then, the die is not closed, and the first bracket punch 20 and the second bracket punch 21 respectively punch the shape of the support 10; the first connecting punch 22 and the second connecting punch 23 punch the redundant parts of the support 10 and the terminal 8 and connect the redundant parts, the half-shearing punch 16 punches a groove, and the blank punch 17 cuts the punched product and the workpiece; the waste material that location die 15, terminal die assembly 5, support die assembly 6 and connection die assembly 7 punched out leaks down by the die of lower bolster 3, and the waste material passes lower bolster 27 and lower bolster 3, drops to slope slide 30 on, and photoelectric detector detects the waste material and whether has dropped, when the waste material jumped out the die, the control mould die sinking.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications without inventive contribution to the present embodiment as required after reading the present specification, but all of them are protected by patent law within the scope of the present invention.

Claims

1. A terminal stamping die comprises an upper template (2), a lower template (3) and a guide post and guide sleeve structure arranged between the upper template (2) and the lower template (3);

the stamping die is characterized in that a terminal stamping die component (5), a support stamping die component (6) and a connecting stamping die component (7) are sequentially arranged on the upper template (2); the lower template (3) is provided with a female die matched with the terminal die assembly (5), the bracket die assembly (6) and the connecting die assembly (7);

the terminal punching die assembly (5) comprises a pre-processing punch (18) arranged at the feeding end of the die and a forming punch (19) arranged behind the pre-processing punch (18);

the support die assembly (6) comprises a first support punch (20) and a second support punch (21) which are arranged side by side along the moving direction of the workpiece;

the connecting die assembly (7) comprises a first connecting punch (22) and a second connecting punch (23) which separate adjacent terminals (8); and a half-shearing die (16) for stamping a workpiece is also fixed on the upper template (2).

2. The terminal stamping die according to claim 1, wherein a material guide plate (24) is fixed on one side of the lower template (3) close to the upper template (2), and the material guide plate (24) is arranged at the feeding end of the die.

3. The terminal stamping die according to claim 2, wherein the lower template (3) is fixed with a stop block (26) on one side of the workpiece, a plurality of floating blocks (25) are arranged on the other side of the workpiece, and the floating blocks (25) are arranged side by side, and a sliding groove for the workpiece to slide is formed in each floating block (25).

4. A terminal stamping die according to claim 3, wherein the upper die plate (2) is fixed with a positioning punch die (15), and the positioning punch die (15) is mounted at the feed end of the workpiece.

5. A terminal stamping die according to any one of claims 1-4, wherein the discharge end of the die is provided with a blanking die (17).

6. The terminal stamping die according to claim 5, wherein a lower die holder (4) is arranged below the lower die plate (3), and a positioning pin (28) is arranged between the lower die holder (4) and the lower die plate (3).

7. The terminal stamping die according to claim 1, wherein a lower bolster (29) is arranged below the lower template (3), a plurality of lower bolsters (29) are arranged along the moving direction of the workpiece, and inclined slideways (30) for facilitating waste collection are arranged between the adjacent lower bolsters (29).

8. The terminal stamping die according to claim 7, wherein the lower template (3) is provided with a photoelectric sensor for detecting the waste ejection die.