CN210358774U

CN210358774U - Stamping and trimming die structure

Info

Publication number: CN210358774U
Application number: CN201920406280.4U
Authority: CN
Inventors: 刘强; 苏传义; 牛恒仁; 李建军; 王力; 邰伟彬; 王强; 尹永波; 赵锋; 杨庆波
Original assignee: FAW Bestune Car Co Ltd
Current assignee: FAW Bestune Car Co Ltd
Priority date: 2019-03-28
Filing date: 2019-03-28
Publication date: 2020-04-21
Anticipated expiration: 2029-03-28

Abstract

A stamping and trimming die structure, comprising a first trimming die for an upper die, a piercing knife for the upper die, a second trimming die for the upper die, a scrap knife for the lower die and a trimming die for the lower die; the piercing knife for the upper die can be disassembled and replaced , the upper mold piercing knife is installed in the first trimming mold of the upper mold when working, the lower mold scrap knife is lower than the lower mold trimming mold, and the lower mold scrap knife and the lower mold trimming mold are spaced apart. The utility model adopts a stamping and trimming die structure that can replace the piercing knife, which is not only conducive to the daily maintenance and maintenance of the piercing knife edge, but also can independently select the material and heat treatment process of the piercing knife, and at the same time, it can also As a similar standard part, the puncture knife is applied to different molds for standardized management, thereby reducing processing and manufacturing costs. In addition, the trimming die structure solves the problem of generating scrap at the scrap knife position during the production process.

Description

Stamping and trimming die structure

Technical Field

The utility model belongs to the technical field of the punching press and specifically relates to a punching press deburring die structure of sword is punctureed in area, especially a can tear punching press deburring die structure who trades the sword of puncturing open.

Background

In the stamping production process of the automobile outer covering part, waste scraps are easily generated in the trimming process, the surface quality of the covering part is affected, and the production stop is caused. The position of waste scrap generation is mainly concentrated at the position of a waste cutter, and the main reason of the waste scrap generation is that a waste cutting mechanism is unreasonable, so that the upper die trimming die, the lower die trimming die and the lower die waste cutter tear the plate firstly in the trimming process and then carry out secondary shearing, and waste scrap is generated.

In order to optimize a waste cutting mechanism, at present, a sharp bulge, namely a piercing cutter, is arranged at the matching position of an upper die trimming die, a lower die trimming die and a lower die waste cutter, as shown in fig. 1, so that a plate is firstly pierced instead of torn in the trimming process, secondary shearing of the plate is eliminated, and the problem of waste scraps generated at the position of the waste cutter is solved.

The piercing knife and the upper die trimming die mentioned in the above patent are integrated, and have the following disadvantages: firstly, when the cutting edge of the puncture knife is maintained, the whole upper die trimming die needs to be detached; and secondly, the material of the piercing knife is the same as that of the trimming die.

Disclosure of Invention

The utility model aims at eliminating the waste scrap problem generated by secondary shearing, and providing a replaceable piercing cutter structure which is beneficial to the maintenance and cost control of subsequent dies.

A stamping trimming die structure comprises an upper die first trimming die, an upper die piercing cutter, an upper die second trimming die, a lower die waste cutter and a lower die trimming die; the upper die puncture knife can be detached and replaced, the upper die puncture knife is mounted in the first trimming die of the upper die during working, the lower die waste knife is lower than the lower die trimming die, and a distance is reserved between the lower die waste knife and the lower die trimming die.

The upper die piercing cutter is connected to the upper die first trimming die through a bolt and a key.

The tool point angle of the matching surface of the upper die piercing cutter and the lower die waste cutter is α, and the value range of α is 60-80 degrees.

The tool nose angle of the matching surface of the upper die puncture knife and the lower die trimming die is β, and the value range of β is 60-80 degrees.

The height of the upper die puncture knife is h, and the value range of h is 2mm-6 mm.

And a gap a is formed between the lower die scrap cutter and the lower die trimming die in the vertical direction, and the value range of the gap a is 3-8 mm.

And a gap b is formed between the lower die waste cutter and the lower die trimming die in the horizontal direction, and the value range of b is 3-8 mm.

The utility model has the advantages that:

the utility model discloses a can tear punching press deburring die structure that trades puncture sword open, existing daily maintenance that does benefit to the puncture sword blade also can select the material and the thermal treatment technology of puncture sword alone, simultaneously, also can regard as similar standard component the same to puncture the sword, use in the middle of the different moulds, carry out standardized management to can reduce the processing manufacturing cost. In addition, the trimming die structure solves the problem of waste scrap generation at the waste knife position in the production process.

Drawings

FIG. 1 is a schematic view of an upper mold piercing cutter and an upper mold first trimming mold in the prior art as an integral structure.

Fig. 2 is the schematic view of the split structure of the middle upper die piercing cutter and the upper die trimming die.

Fig. 3 is a front view of the structure of the trimming mold of the present invention.

Fig. 4 is an axial view of the trimming mold structure of the present invention.

Fig. 5 is a schematic view of the piercing knife of the present invention.

Figure 6 is the utility model discloses the axle view of lower mould deburring mould and lower mould waste material sword.

Fig. 7 is a schematic view of the trimming mold structure of the present invention in the trimming process.

Detailed Description

As shown in fig. 2, 3 and 4, the utility model discloses a go up first deburring mould 1, go up mould puncture sword 2, go up mould second deburring mould 3, lower mould waste material sword 4 and lower mould deburring mould 5, it can dismantle the change to go up mould puncture sword 2, it installs to go up mould puncture sword 2 during operation go up in the first deburring mould 1 of mould, lower mould waste material sword 4 is less than lower mould deburring mould 5, lower mould waste material sword 4 with lower mould deburring mould 5 has the interval.

The upper die piercing cutter 2 is an independent die and is connected to the upper die first trimming die 1 through a bolt and a key. The upper die puncture knife 2 is an independent die, which is beneficial to daily maintenance of the cutting edge of the puncture knife on the one hand, and can also independently select the material and the heat treatment process of the puncture knife on the other hand.

As shown in fig. 5, the tip angle of the mating surface of the upper die puncture knife 2 and the lower die waste knife 4 is α, the value range of α is 60 ° -80 °, the tip angle of the mating surface of the upper die puncture knife 2 and the lower die trimming die 5 is β, the value range of β is 60 ° -80 °, the height of the upper die puncture knife 2 is h, and the value range of h is 2mm-6 mm.

As shown in fig. 3, a gap a is formed between the lower die scrap cutter 4 and the lower die trimming die 5 in the vertical direction, and the value range of a is 3mm-8 mm.

As shown in fig. 6, a gap b is formed between the lower die scrap cutter 4 and the lower die trimming die 5 in the horizontal direction, and the value range of b is 3mm to 8 mm.

As shown in fig. 7, in operation, the upper die piercing knife 2 first contacts and pierces the sheet 6, rather than tearing the sheet 6; the upper die first trimming die 1, the upper die second trimming die 3 and the upper die piercing cutter 2 continue to move downwards, the upper die first trimming die 2, the upper die second trimming die 3 and the lower die trimming die 5 are matched to finish separation of a finished piece and waste materials, and the upper die first trimming die 1 and the lower die waste material cutter are matched to finish cutting off the waste materials.

The stamping trimming die structure with the replaceable piercing knife ensures that the plate is firstly pierced instead of torn in the trimming process, eliminates secondary shearing of the plate, and solves the problem of waste scraps generated at the position of the waste knife.

Claims

1. The utility model provides a punching press deburring die structure which characterized in that: the trimming die comprises an upper die first trimming die (1), an upper die puncture knife (2), an upper die second trimming die (3), a lower die waste material knife (4) and a lower die trimming die (5), wherein the upper die puncture knife (2) can be detached and replaced, the upper die puncture knife (2) is installed in the upper die first trimming die (1), the lower die waste material knife (4) is lower than the lower die trimming die (5), and the lower die waste material knife (4) and the lower die trimming die (5) have a distance.

2. The stamping and trimming die structure as defined in claim 1, wherein: the upper die puncture knife (2) is an independent die and is connected to the upper die first trimming die (1) through a bolt and a key.

3. The stamping and trimming die structure according to claim 1, wherein the nose angle of the matching surface of the upper die piercing cutter (2) and the lower die waste cutter (4) is α, the value range of α is 60-80 degrees, the nose angle of the matching surface of the upper die piercing cutter (2) and the lower die trimming die (5) is β, the value range of β is 60-80 degrees, the height of the upper die piercing cutter (2) is h, and the value range of h is 2-6 mm;

a gap a is arranged between the lower die waste cutter (4) and the lower die trimming die (5) in the vertical direction, and the value range of a is 3-8 mm;

and a gap b is formed between the lower die waste cutter (4) and the lower die trimming die (5) in the horizontal direction, and the value range of b is 3-8 mm.