CN215467390U

CN215467390U - Structure capable of reducing scrap generated in trimming process of cold stamping die

Info

Publication number: CN215467390U
Application number: CN202023034297.3U
Authority: CN
Inventors: 刘颖良
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2022-01-11
Anticipated expiration: 2030-12-16

Abstract

The utility model relates to the technical field of cold stamping dies and discloses a structure capable of reducing scraps generated in a trimming process of a cold stamping die. The utility model discloses a, cut into the clastic production of mould deburring through the control that the sheet metal component chronogenesis was cut into to the tool setting mouth to solved the problem that the deburring mould piece frequently crushed the sheet metal component, reduced because of the mould shut down of wiping that piece impression caused, can also reduce the maintenance use cost of mould.

Description

Structure capable of reducing scrap generated in trimming process of cold stamping die

Technical Field

The utility model relates to the technical field of cold stamping dies, in particular to a structure capable of reducing scraps generated in a trimming process of a cold stamping die.

Background

Cold stamping is the most common processing mode in processing metal materials, and particularly has a large proportion in some parts which bear main stress and appearance, wherein stamping parts in the automobile industry are more important parts of automobile bodies, trimming process chips are generally generated at two parts, namely a waste material cutter and two different stamping direction cross cutters, when products are stamped and formed, and have a large influence on the surface quality of the stamping parts, in the production process, a large amount of chips generated by the trimming cutters are brought to the surfaces of the stamping parts, so that the surfaces of the die parts and the stamping parts are crushed by the chips, the appearance quality of the parts is influenced, the appearance quality problem is difficult to be processed by simple grinding and polishing, the repair difficulty is large, the parts can be seriously or even can not be repaired, the production cost is increased, and the generated chips can seriously influence the normal service life of the die when falling into movable parts of the die, the maintenance and use cost of the die is increased.

The problem of chipping of the cold stamping industry is always a difficult problem which puzzles die practitioners, at present, although a large amount of researches are carried out on the problem of chipping trimming in the die industry at home and abroad, and a large number of solutions are provided, the solutions do not increase the manufacturing difficulty of the die and the debugging cost of the die maintenance cost, the effect is not obvious, and the generation of chipping is not fundamentally solved. The method can be designed according to the time sequence requirements of the graph in the mold design period, does not need to increase mechanism increase and mold manufacturing cost, has the characteristics of low cost and great benefit improvement, has great progress compared with the existing chip reducing technical scheme, does not increase the structural cost, and has the characteristics of obvious economic benefit.

Therefore, a structure capable of reducing scraps generated in the trimming process of the cold stamping die is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a structure capable of reducing scraps generated in a trimming process of a cold stamping die, which is capable of eliminating the generation of die trimming scraps by utilizing the control of a time sequence of cutting a cutter opening into a sheet metal part, thereby solving the problem that the scrap of the trimming die frequently crushes the sheet metal part, reducing the die wiping shutdown caused by scrap stamping, and reducing the maintenance and use cost of the die.

(II) technical scheme

In order to realize the purpose of eliminating the generation of trimming scraps of the die by controlling the time sequence of cutting the notch into the sheet metal part, thereby solving the problem of stamping the trimming scraps of the trimming die and reducing the maintenance and use cost of the die, the utility model provides the following technical scheme: a structure capable of reducing scraps generated in a trimming process of a cold stamping die comprises an upper die assembly and a lower die assembly, wherein a sheet metal part is arranged between the upper die assembly and the lower die assembly, the bottom of the upper die assembly is fixedly connected with an upper die waste material cutter and a material pressing plate respectively, the top of the lower die assembly is fixedly connected with a lower die waste material cutter, and a trimming cutter is arranged between the upper die assembly and the lower die assembly; the trimming knife comprises a lower die trimming knife and an upper die trimming knife, the upper die trimming knife is fixedly connected to the bottom of the upper die assembly, and the lower die trimming knife is fixedly connected to the lower die assembly; the bottom of going up the mould subassembly all is provided with the tapered wedge with the top of lower mould subassembly, it is provided with mould sword piece and last mould tapered wedge sword piece to go up the mould subassembly.

Preferably, the time sequence B size of the upper die waste knife and the trimming knife is 0.2-5 MM.

Preferably, the time sequence A of the upper die waste knife and the trimming knife is 5-300 MM in size.

Preferably, the angle between the blade surface D of the trimming knife and the stamping direction is 55-85 degrees.

Preferably, the size of a knife edge C at the intersection of the upper die straight knife and the oblique wedge knife block is the thickness of the sheet metal part.

Preferably, the cutter crossing part E of the upper die oblique wedge cutter block is a 0.5-2 mm round angle.

Preferably, the upper die cutter block and the upper die inclined wedge cutter face E are cut into the sheet metal part by 0.5-3 MM deeper than the cutter face F.

(III) advantageous effects

Compared with the prior art, the structure capable of reducing scraps generated in the trimming process of the cold stamping die provided by the utility model has the following beneficial effects:

1. according to the structure capable of reducing scrap generation in the trimming process of the cold stamping die, the scrap generation of the die trimming is eliminated by controlling the time sequence of cutting the cutter opening into the sheet metal part, so that the problem that the scrap of the trimming die is frequently crushed to the sheet metal part is solved, the die wiping shutdown caused by scrap imprinting is reduced, and the maintenance, maintenance and use cost of the die can be reduced.

Drawings

FIG. 1 is a front partial schematic view of an upper die scrap cutter and sheet metal part structure of the present invention;

FIG. 2 is a front perspective view of the upper die cutter block and the upper die tapered wedge cutter block of the utility model;

FIG. 3 is a perspective view of the mold structure;

FIG. 4 is a perspective view of the upper die assembly;

fig. 5 is a perspective view of the lower die assembly.

In the figure: 1. an upper die assembly; 2. a lower die assembly; 3. trimming a cutter of the lower die; 4. a lower die scrap cutter; 5. a material pressing plate; 6. an upper die inclined wedge trimming cutter; 7. an upper die scrap cutter; 8. oblique wedge; 9. an upper die cutter block; 10. an upper die oblique wedge cutter block; 11. sheet metal parts.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, a structure capable of reducing scraps generated in a trimming process of a cold stamping die comprises an upper die assembly 1 and a lower die assembly 2, wherein a sheet metal part 11 is arranged between the upper die assembly 1 and the lower die assembly 2, the bottom of the upper die assembly 1 is fixedly connected with an upper die scrap cutter 7 and a pressure plate 5 respectively, the bottom of the lower die assembly 2 is fixedly connected with a lower die scrap cutter 4, and a trimming cutter is arranged between the upper die assembly 1 and the lower die assembly 2;

the trimming knife comprises a lower die trimming knife 3 and an upper die trimming knife 6, the upper die trimming knife 6 is fixedly connected to the bottom of the upper die assembly 1, and the lower die trimming knife 3 is fixedly connected to the top of the lower die assembly 2;

the bottom of the upper die assembly 1 and the top of the lower die assembly 2 are both provided with a wedge 8, an upper die cutter block 9 and an upper die wedge cutter block 10 are arranged in the upper die assembly 1, when the upper die assembly 1 continues to move downwards, the upper die waste cutter 7 firstly contacts the sheet metal part 11 from the cutter point to the left A, the cutter point of the lower upper die waste cutter 7 along with the upper die assembly 1 contacts the sheet metal part 11, a bypass cutter point is not cut in, at the moment, the waste material area of the sheet metal part 11 continues to move downwards along with the whole die, the waste material area can be torn in the 45-degree direction along with the waste cutter or can not be torn completely, all the sheet metal parts 11 in the two states are punched and finished by the upper die cutter point and the lower die cutter point, and no secondary shearing exists, so that no forming chips are generated.

Further, when the upper die assembly 1 continues to move downwards, the upper die oblique wedge 8 drives the oblique wedge 8 to move along the parallel direction of the sliding guide surface under the action of the lower die sliding guide surface until the upper die cutter block 9 contacts the sheet metal part 11, the sheet metal part 11 pierces through a waste material area of the sheet metal part 11 under the action that the knife surface D of the upper die cutter block 9 and the stamping direction form 55-85 degrees, the sheet metal part 11 is not torn along the trimming line, the oblique wedge cutter block 10 continues to move downwards along with the die to contact the sheet metal part 11, and the following three time sequences are carried out: the overlapping amount of the edge C at the intersection of the upper straight cutter and the oblique wedge cutter block is the thickness of the sheet metal part, the E at the intersection of the oblique wedge cutter 10 is inverted to a 0.5-2 MM fillet, and the E at the intersection is deeper than the F by 0.5-3 MM and is smooth, so that under the common influence, the sheet metal part is completely punched by the edge without generating fragments.

The working principle is as follows: when the upper die assembly 1 continues to move downwards, the upper die waste cutter 7 firstly contacts the sheet metal part 11 from the distance of the cutter point to the left A, the bypass cutter point is not cut into along with the cutter point of the lower upper die waste cutter 7 of the upper die assembly 1 contacting the sheet metal part 11, at the moment, the waste material area of the sheet metal part 11 continuously moves downwards along with the whole die, the waste material area can be torn along the direction of 45 degrees of the waste cutter or can not be torn at all, all the sheet metal parts 11 in the two states are cut by the upper and lower die cutter points, no secondary cutting exists, no debris is generated, when the upper die assembly 1 continues to move downwards, the upper die oblique wedge 8 drives the oblique wedge 8 to move along the direction of the sliding guide surface under the action of the lower die sliding guide surface, until the upper die cutter block 9 contacts the sheet metal part 11, the sheet metal part 11 pierces through the waste material area of the sheet metal part 11 under the action that the cutter surface D of the upper die cutter block 9 forms 55-85 degrees with the stamping direction, the sheet metal part 11 is not torn along the trimming line direction, the oblique wedge knife block 10 continuously moves downwards along with the die to contact the sheet metal part 11, and the three time sequences are as follows: the overlapping amount of the edge C at the intersection of the upper straight cutter and the oblique wedge cutter block is the thickness of the sheet metal part, the E at the intersection of the oblique wedge cutter 10 is inverted to a 0.5-2 MM fillet, and the E at the intersection is deeper than the F by 0.5-3 MM and is smooth, so that under the common influence, the sheet metal part is completely punched by the edge without generating fragments. The whole device eliminates the generation of trimming scraps of the die by controlling the time sequence of cutting the cutting edge into the sheet metal part 11, thereby solving the problem that the scraps of the trimming die frequently crush the sheet metal part, reducing the die wiping shutdown caused by the stamping of the scraps and reducing the maintenance and use cost of the die.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a can reduce cold stamping die deburring process and produce clastic structure, includes mould subassembly (1) and lower mould subassembly (2), its characterized in that: a sheet metal part (11) is arranged between the upper die assembly (1) and the lower die assembly (2), the bottom of the upper die assembly (1) is fixedly connected with an upper die waste material cutter (7) and a pressure plate (5) respectively, the top of the lower die assembly (2) is fixedly connected with a lower die waste material cutter (4), and a trimming cutter is arranged between the upper die assembly (1) and the lower die assembly (2);

the trimming knife comprises a lower die trimming knife (3) and an upper die trimming knife (6), the upper die trimming knife (6) is fixedly connected to the bottom of the upper die assembly (1), and the lower die trimming knife (3) is fixedly connected to the lower die assembly (2);

the bottom of the upper die assembly (1) and the top of the lower die assembly (2) are both provided with an oblique wedge (8), and the upper die assembly (1) is provided with an upper die cutter block (9) and an upper die oblique wedge cutter block (10).

2. The structure for reducing the generation of scraps in the trimming process of the cold stamping die as claimed in claim 1, wherein: the time sequence B of the upper die waste cutter (7) and the trimming cutter is 0.2-5 mm in size.

3. The structure for reducing the generation of scraps in the trimming process of the cold stamping die as claimed in claim 1, wherein: the time sequence A of the upper die waste cutter (7) and the trimming cutter is 5-300 mm in size.

4. The structure for reducing the generation of scraps in the trimming process of the cold stamping die as claimed in claim 1, wherein: the knife face D of the trimming knife and the stamping direction form an angle of 55-85 degrees.

5. The structure for reducing the generation of scraps in the trimming process of the cold stamping die as claimed in claim 1, wherein: and the cutter crossing part E of the upper die oblique wedge cutter block (10) is a 0.5-2 mm round angle.

6. The structure for reducing the generation of scraps in the trimming process of the cold stamping die as claimed in claim 1, wherein: the crossing position E of the upper die cutter block (9) and the upper die oblique wedge cutter block (10) is 0.5-3 mm deeper than the cutting position F into the sheet metal part (11).