CN112893629A

CN112893629A - Cold stamping die capable of being continuously processed

Info

Publication number: CN112893629A
Application number: CN202110205636.XA
Authority: CN
Inventors: 李荣平; 王贤烟
Original assignee: Shanghai Complee Instrument Co ltd
Current assignee: Shanghai Complee Instrument Co ltd
Priority date: 2021-02-24
Filing date: 2021-02-24
Publication date: 2021-06-04

Abstract

The utility model provides a but cold stamping die of continuous processing, including the upper die base, the downside of upper die base is provided with the fixed backing plate of drift, the downside of the fixed backing plate of drift is provided with the drift fixed plate, drift fixed plate downside is provided with the backing plate of unloading, the backing plate downside of unloading is provided with the stripper, the stripper below is provided with the die board, the die board downside is provided with the die holder, be provided with side sword blank module on the die board, lead the positive hole, punch a hole, tensile hole, the blanking module, the shaping module, the side direction shaping negative angle shaping module and cut off the module, the side direction shaping negative angle shaping module includes the side slider, the side slider is worn to locate between drift fixed plate. The blanking, the hole stretching, the forming and the lateral forming negative angle forming can be automatically and synchronously carried out and can be finished at one time, the equipment utilization rate is improved, the integral matching precision and the production efficiency of parts are greatly improved, and the labor cost and the rejection rate of products are reduced.

Description

Cold stamping die capable of being continuously processed

Technical Field

The invention relates to the field of machinery, in particular to a stamping die, and particularly relates to a cold stamping die capable of being continuously processed.

Background

The utility model provides a product that needs frequent processing production is including four kinks and have a through-hole, adopts the cold stamping die among the prior art to add man-hour, and every action all needs to do a cold punching die alone, and the processing link is many, comprehensive error is big, equipment utilization is rateed lowly, the cost of labor is big, the whole cooperation error between spare part is big, can't satisfy the high accuracy processing requirement of current engineering automation equipment core part.

Disclosure of Invention

The invention aims to provide a cold stamping die capable of being continuously processed, and aims to solve the technical problems that the cold stamping die in the prior art is low in production efficiency and low in overall matching precision of parts.

The invention relates to a cold stamping die capable of being continuously processed, which comprises an upper die base, wherein a punch fixing base plate is arranged at the lower side of the upper die base, a punch fixing plate is arranged at the lower side of the punch fixing base plate, a plurality of punches are arranged at the lower side of the punch fixing plate, the upper die base is mutually positioned with the punch fixing base plate and the punch fixing plate through first positioning pins and is fixed through first screws,

a discharging base plate is arranged at the lower side of the punch fixing plate, a discharging plate is arranged at the lower side of the discharging base plate, the discharging base plate and the discharging plate are mutually positioned through a second positioning pin and fixed through a second screw,

a concave mould plate is arranged below the stripper plate, a lower mould seat is arranged at the lower side of the concave mould plate, the concave mould plate and the lower mould seat are mutually positioned by a third positioning pin and are fixed by a third screw, a side edge blanking module, a pilot hole, a punching hole, a stretching hole, a blanking module, a forming module, a side forming negative angle forming module and a cutting module are arranged on the concave mould plate, the side forming negative angle forming module comprises a side slide block, the side slide block is arranged between the punch fixing plate and the stripper plate in a penetrating way,

the upper die base, the punch fixing base plate, the punch fixing plate, the discharging base plate and the discharging plate are movably connected through equal-height screws, through holes are formed in the punch fixing plate and the discharging base plate, springs are arranged in the through holes, the upper ends of the springs are connected with the punch fixing base plate, the lower ends of the springs are connected with the discharging plate, and the punch fixing plate, the discharging base plate, the discharging plate, the concave die plate and the lower die base are mutually positioned through guide pillars.

Further, the number of the punches is thirteen.

Furthermore, the number of the first screws, the number of the second screws and the number of the third screws are two.

Furthermore, the number of the guide posts is two.

Further, the number of the springs is three.

Compared with the prior art, the invention has positive and obvious effect. The continuously-processing cold stamping die is based on the traditional cold stamping die, the expansion size of a product is obtained through accurate calculation, the precision of the formed product meets the requirement of a drawing, the product and waste materials are automatically separated after cutting off the connecting edge materials of the material belt through hole cutting, shape cutting, stretching, side forming negative angle forming and cutting off, the blanking, the stretching, the forming and the side forming negative angle forming can be automatically and synchronously performed and can be completed at one time, a plurality of processing links are not needed, the utilization rate of equipment is improved, the integral matching precision and the production efficiency of parts are greatly improved, and the labor cost and the rejection rate of the product are reduced.

Drawings

Fig. 1 is a schematic top view of a continuously workable cold stamping die according to the present invention.

FIG. 2 is a schematic sectional view of A-A in FIG. 1.

FIG. 3 is a schematic sectional view of B-B in FIG. 1.

Fig. 4 is a schematic structural view of a punch fixing plate and a punch according to the present invention.

Fig. 5 is a schematic diagram of the working process of the present invention.

Fig. 6 is a schematic top view of the structure of fig. 5.

FIG. 7 is a schematic diagram of step five of the present invention.

FIG. 8 is a schematic diagram of step six of the present invention.

FIG. 9 is a schematic diagram of step eight of the present invention.

FIG. 10 is a diagram illustrating step nine of the present invention.

Fig. 11 is a schematic diagram of step ten of the present invention.

FIG. 12 is a schematic representation of step eleven of the present invention.

Fig. 13 is a partially enlarged structural diagram of a in fig. 12.

FIG. 14 is a schematic diagram of step twelve in accordance with the present invention.

Fig. 15 is a schematic structural view of a processed product.

Fig. 16 is a front view schematic of a processed product.

Fig. 17 is a schematic diagram of a right-view structure of a processed product.

Fig. 18 is a schematic top view of a processed product.

Detailed Description

The present invention will be further described with reference to the drawings and examples, but the present invention is not limited to the examples, and all similar structures and similar variations using the present invention shall fall within the scope of the present invention.

As shown in fig. 1 to 18, the cold stamping die capable of continuous processing of the present invention comprises an upper die holder 1, a punch fixing plate 2 is disposed on the lower side of the upper die holder 1, a punch fixing plate 3 is disposed on the lower side of the punch fixing plate 2, a plurality of punches 19 are disposed on the lower side of the punch fixing plate 3, the upper die holder 1 is mutually positioned with the punch fixing plate 2 and the punch fixing plate 3 by a first positioning pin 9 and fixed by a first screw,

a discharging backing plate 4 is arranged at the lower side of the punch fixing plate 3, a discharging plate 5 is arranged at the lower side of the discharging backing plate 4, the discharging backing plate 4 and the discharging plate 5 are mutually positioned by a second positioning pin 16 and fixed by a second screw 17,

a concave template 6 is arranged below the discharging plate 5, a lower die holder 7 is arranged at the lower side of the concave template 6, the concave template 6 and the lower die holder 7 are mutually positioned by a third positioning pin 36 and are fixed by a third screw 12, a side edge blanking module, a pilot hole, a punching hole, a stretching hole, a blanking module, a forming module, a side forming negative angle forming module and a cutting module are arranged on the concave template 6, the side forming negative angle forming module comprises a side slide block 20, the side slide block 20 is arranged between the punch fixing plate 3 and the discharging plate 5 in a penetrating way,

the punching die is characterized in that the upper die base 1, the punch fixing base plate 2, the punch fixing plate 3, the discharging base plate 4 and the discharging plate 5 are movably connected through equal-height screws 14, through holes are formed in the punch fixing plate 3 and the discharging base plate 4, springs 13 are arranged in the through holes, the upper ends of the springs 13 are connected with the punch fixing base plate 2, the lower ends of the springs 13 are connected with the discharging plate 5, and the punch fixing plate 3, the discharging base plate 4, the discharging plate 5, the concave die plate 6 and the lower die base 7 are mutually positioned through guide pillars 10.

Further, the number of the punches 19 is thirteen.

Furthermore, the number of the first screw, the second screw 17 and the third screw 12 is two.

Further, the number of the guide posts 10 is two.

Further, the number of the springs 13 is three.

Specifically, the upper die base 1, the punch fixing pad plate 2, the punch fixing plate 3, the punch 19, the screws, the discharging pad plate 4, the discharging plate 5, the positioning pins, the cavity plate 6, the lower die base 7, the side edge blanking module, the forming module, the cutting module, the equal-height screws 14, the guide pillars 10, and the like in this embodiment all adopt known schemes in the prior art, and those skilled in the art know the schemes and are not described herein again.

The working principle of the invention is as follows:

the invention is used for processing a sheet metal product 18, and the product 18 comprises four bent parts and a through hole.

The upper die holder 1 is fixed on the upper part of the machine table through a fixing device, the upper part of the machine table can move up and down, the lower die holder 7 is fixed on the lower part of the machine table through the fixing device, the lower part of the machine table is a working table surface, and the upper part of the machine table drives the upper die holder 1 to perform repeated stamping up and down. After the punch 19 finishes processing the strip, the strip is separated from the punch 19 rapidly by the action of the spring 13. When the mould is opened, the stripper plate 5 and the upper mould base 1 are flicked to unload materials.

The upper part of the machine table drives the die to open and close, the product 18 is separated from the female die and the punch 19 through the buoyancy lifting pin and the discharging plate 5, the automatic feeding machine smoothly and accurately feeds the material belt to the next station, and the process is repeatedly operated.

The working process of the invention is as follows:

step one 21: and cutting the material belt. The material belt is cut through the side edge cutting module, so that the feeding width is ensured;

step two 22: and (6) punching. The material belt is guided and positioned through the guide holes, the stability of a punched product 18 and the accuracy of step pitch of each station are guaranteed, and hole positions and bottom holes of stretching holes of the product 18 are pre-punched through the hole cutting punch 19;

step three 23: and (4) performing 18-hole secondary processing on the hole flanging product. When the stretching punch 19 descends, firstly, a small step of the stretching punch 19 is inserted into the pre-punched hole for positioning to ensure the concentricity of the product 18, and then, the stretching punch continues to descend to the stretching step for stretching;

step four 24: and cutting the material belt. Blanking through a blanking module to generate the external dimension of the lower end of the product 18;

step five 25: and (5) bending for one time. Bending and primarily forming the shape of the lower end of the product 18 through a punch 19;

step six 26: and (5) bending for the second time. Bending and shaping the shape of the lower end of the product 18 through a punch 19;

step seven 27: cutting the material belt, and blanking through a blanking module to generate the external dimension of the upper end of the product 18;

step eight 28: and primary bending, namely primary bending and forming the upper end shape of the product 18 by a punch 19.

Step nine 29: and (5) secondary bending, namely, secondary bending and shaping the shape of the upper end of the product 18 through a punch 19.

Step ten 30: and (5) bending for the third time, and primarily bending and forming another bending point of the upper end shape of the product 18 through a punch 19.

Step eleven 31: and (4) bending for four times, and performing secondary bending and shaping on another bending point of the upper end shape of the product 18 through the punch 19 and the bulge 34 to enable the side length 35 to shrink by 0.5 mm.

Step twelve 32: bending for five times, and bending another bending point of the upper end shape of the product 18 for three times through a punch 19 and a side slide block 20 to form a negative angle for shaping;

step thirteen 33: the strip of material is cut, the strip of material is cut by a blanking module, the products 18 are separated from the strip of material, and waste is collected.

The method is based on the traditional cold punching die, the unfolding size of the product 18 is obtained through accurate calculation, the precision of the formed product 18 meets the requirement of a drawing, the product 18 is automatically separated from waste materials after hole cutting, shape cutting, hole stretching, negative angle forming of lateral forming and material belt connection edge material cutting, blanking (step one 21, step four 24, step seven 27 and step thirteen 33), hole stretching (step two 22 and step three 23), forming (step five 25, step six 26, step eight 28, step nine 29, step ten 30 and step eleven 31) and negative angle forming of lateral forming (step twelve 32) can be automatically and synchronously carried out, and the method can be completed at one time without a plurality of processing links, so that the utilization rate of equipment is improved, the integral matching precision and the production efficiency of parts are greatly improved, and the labor cost and the rejection rate of the product 18 are reduced.

Claims

1. The utility model provides a but cold stamping die of continuous processing which characterized in that: comprises an upper die holder (1), a punch fixing backing plate (2) is arranged on the lower side of the upper die holder (1), a punch fixing plate (3) is arranged on the lower side of the punch fixing backing plate (2), a plurality of punches (19) are arranged on the lower side of the punch fixing plate (3), the upper die holder (1) is mutually positioned with the punch fixing backing plate (2) and the punch fixing plate (3) through a first positioning pin (9) and is fixed through a first screw,

a discharging backing plate (4) is arranged at the lower side of the punch fixing plate (3), a discharging plate (5) is arranged at the lower side of the discharging backing plate (4), the discharging backing plate (4) and the discharging plate (5) are mutually positioned by a second positioning pin (16) and fixed by a second screw (17),

a concave mould plate (6) is arranged below the stripper plate (5), a lower mould seat (7) is arranged at the lower side of the concave mould plate (6), the concave mould plate (6) and the lower mould seat (7) are mutually positioned by a third positioning pin (36) and are fixed by a third screw (12), a side edge blanking module, a guide positive hole, a punching hole, a stretching hole, a blanking module, a forming module, a side forming negative angle forming module and a cutting module are arranged on the concave mould plate (6), the side forming negative angle forming module comprises a side slide block (20), the side slide block (20) is arranged between the punch fixing plate (3) and the stripper plate (5) in a penetrating way,

the punching die is characterized in that the upper die base (1), the punch fixing base plate (2), the punch fixing plate (3), the discharging base plate (4) and the discharging plate (5) are movably connected through equal-height screws (14), through holes are formed in the punch fixing plate (3) and the discharging base plate (4), springs (13) are arranged in the through holes, the upper ends of the springs (13) are connected with the punch fixing base plate (2), the lower ends of the springs (13) are connected with the discharging plate (5), and the punch fixing plate (3), the discharging base plate (4), the discharging plate (5), the concave die plate (6) and the lower die base (7) are mutually positioned through guide pillars (10).

2. A continuously workable cold stamping die according to claim 1, wherein: the number of the punches (19) is thirteen.

3. A continuously workable cold stamping die according to claim 1, wherein: the number of the first screws, the number of the second screws (17) and the number of the third screws (12) are two.

4. A continuously workable cold stamping die according to claim 1, wherein: the number of the guide posts (10) is two.

5. A continuously workable cold stamping die according to claim 1, wherein: the number of the springs (13) is three.