CN210999091U - Trimming and finishing jig - Google Patents

Abstract

A trimming and trimming jig is characterized in that an upper template is arranged at the upper end of a fixed plate, positioning guide sleeves and guide sleeves which are vertically and downwards arranged are arranged on two sides of the upper template, the positioning guide sleeves and the guide sleeves penetrate through the fixed plate, a reserved interval is reserved between the fixed plate and the upper template, the upper end faces of the positioning guide sleeves and the guide sleeves are flush with the upper end face of the upper template, high-precision production of materials made of flexible materials is realized in a secondary blanking mode, when the materials are cut for the first time, the materials are cut into blank materials larger than the products, then the edges of the blank materials are pressed for secondary cutting, the size of the blank materials is smaller when the blank materials are cut for the second time, the stored edges are also pressed due to easy deformation, so that the blank materials can be effectively prevented from being deformed, meanwhile, the two-time blanking production can be realized by single-time stamping, the production efficiency is improved to the maximum extent, and the labor cost is reduced.

Description

A trimming tool

technical field

The utility model relates to the field of molds, in particular to a trimming and trimming fixture.

Background technique

Blanking is a stamping process that uses a die to separate some materials or process parts from another part of materials, process (process) parts or waste, and separates parts or blanks of the required shape and size from the sheet. Blanking is to use the cutting edge of the die to make the sheet material shear deform and separate along a certain contour line. Blanking occupies the largest proportion in stamping production.

However, at present, when punching some flexible materials, the punch is easy to cause deformation of the material when punching the material. Although this deformation will rebound after the punching is completed, it will not affect the shape, but There is an impact on the size. When producing some high-precision products, it is necessary to trim the edges according to the size after production. At the same time, it is easy to produce a drape after punching. These problems require secondary processing, which improves the production. cost and processing time.

Utility model content

In order to overcome the above-mentioned shortcomings, the present invention aims to provide a technical solution that can solve the above-mentioned problems.

An edge trimming and trimming fixture comprises: an upper die base and a lower die base, the upper die base is composed of an upper template and a fixed plate, the upper template is arranged on the upper end of the fixed plate, and vertical vertical plates are arranged on both sides of the upper template. The positioning guide sleeve and the guide guide sleeve are arranged straight down, and both the positioning guide sleeve and the guide guide sleeve pass through the fixing plate, and the fixing plate and the upper formwork are matched and set into one body, and there is also reserved space between the fixing plate and the upper formwork. Leave space, the fixed plate and the upper template are in sliding fit with the positioning guide sleeve and the guide guide sleeve. The lower end face of the sleeve is flush with the lower end face of the fixing plate;

A rebound spring is arranged in the reserved interval, the upper end of the rebound spring is in contact with the upper template, and the lower end is in contact with the fixing plate;

The lower end surface of the fixing plate is provided with a punch, and the punch is provided with a sharp convex punch cutting edge along the edge, and the inner end of the punch cutting edge is also provided with a punch that has the same shape as the punch and penetrates the punch. Avoidance groove, and the fixed plate is provided with a through groove with the same shape and the same shape as the avoidance groove, the lower end of the upper template is also provided with a trimming cutting edge, the trimming cutting edge has the same shape as the punch, and the trimming cutting edge penetrates into the hole. avoid the groove;

Both sides of the lower die seat are provided with guide guide posts and positioning guide posts, wherein the guide guide posts on the same side can extend into the guide guide sleeves on the same side, and the positioning guide posts on the same side can extend into the guide guide posts on the same side. in the positioning guide post;

A spring is nested on the positioning guide post;

The middle part of the upper end face of the lower die base is provided with a downwardly concave cutting hole, the shape of the cutting hole is the same as that of the punch, the punch can extend into the cutting hole, and the middle of the cutting hole is concentrically provided with a blanking hole. The shape and size of the blanking hole is the same as that of the trimming cutting edge, and the blanking hole penetrates the lower die seat, and the cutting hole and the blanking hole are in a stepped structure.

As a further solution of the present invention, the upper and lower end faces of the positioning guide sleeve and the guiding guide sleeve are provided with edge pieces protruding to the side edges, and the edge pieces can prevent the upper template and the fixing plate from falling out.

As a further solution of the present invention, a downwardly concave anti-collision groove is provided on the edge position of the lower end face of the cutting hole. When the punch is pressed into the cutting hole, the cutting edge of the punch extends into the anti-collision groove. inside, to avoid the collision between the cutting hole and the cutting edge of the punch.

Compared with the prior art, the beneficial effect of the present utility model is that the high-precision production of the material of the flexible material is realized by means of secondary punching, and in the first cutting, it is cut into a larger size than the product itself. Rough blank, and then press the edge of the blank for secondary cutting, because the volume of the blank is small during the second cutting, and the edge that is easy to deform and affect the storage is also pressed, which can effectively avoid the occurrence of the blank. Deformation, at the same time, two punching production can be achieved in a single punching, without secondary processing and production, maximizing production efficiency and reducing labor costs.

Additional aspects and advantages of the invention will be set forth, in part, from the following description, and in part will be apparent from the following description, or learned by practice of the invention.

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are just some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

FIG. 1 is a schematic structural diagram of the present utility model.

Figure 2 is a schematic structural diagram of the punch in the present invention.

FIG. 3 is a schematic view of the structure of the edge piece in the present invention.

In the picture: 1. Upper template, 2. Fixed plate, 3. Positioning guide sleeve, 4. Rebound spring, 5. Guide guide sleeve, 6. Spring, 7. Positioning guide post, 8. Blanking hole, 9. Cut Material hole, 10, lower die seat, 11, guide guide post, 12, punch, 121, avoidance groove, 122, punch cutting edge, 13, trimming cutting edge, 14, reserved space, 15, anti-collision groove , 351, along the edge of the film.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to FIGS. 1 to 3. In the embodiment of the present invention, a trimming and trimming fixture includes: an upper die base and a lower die base 10, the upper die base is composed of an upper template 1 and a fixing plate 2, and the upper template 1 is arranged on the upper end of the fixed plate 2, both sides of the upper formwork 1 are provided with a positioning guide sleeve 3 and a guide guide sleeve 5 arranged vertically downward, and both the positioning guide sleeve 3 and the guide guide sleeve 5 pass through the fixed plate 2. , the fixing plate 2 and the upper template 1 are arranged in one, and a reserved space 14 is reserved between the fixing plate 2 and the upper template 1. The fixing plate 2 and the upper template 1 are connected with the positioning guide sleeve 3, the guide The guide sleeve 5 is a sliding fit, the upper end surface of the positioning guide sleeve 3 and the guide guide sleeve 5 is flush with the upper end surface of the upper template 1, the lower end surface of the positioning guide sleeve 3 and the guide guide sleeve 5 and the lower end surface of the fixed plate 2 flush;

The reserved interval 14 is provided with a rebound spring 4, the upper end of the rebound spring 4 is in contact with the upper template 1, and the lower end is in contact with the fixing plate 2;

The lower end surface of the fixing plate 2 is provided with a punch 12, and the punch 12 is provided with a sharply raised punch cutting edge 122 along the edge. The shape of the punch 12 is set according to the shape of the product, and the size of the punch 12 is larger than that of the product. The size of the actual product, the inner end of the punch cutting edge 122 is also provided with an escape groove 121 that has the same shape as the punch 12 and penetrates the punch 12, and the fixing plate 2 is provided with the same shape as the escape groove 121. Slot, the lower end of the upper template 1 is also provided with a trimming cutting edge 13, the trimming cutting edge 13 has the same shape as the punch 12, and the size of the trimming cutting edge 13 is equal to the size of the actual product, and the trimming cutting edge 13 penetrates into the avoidance groove 121;

Both sides of the lower die base 10 are provided with guide guide posts 11 and positioning guide posts 7 , wherein the guide guide posts 11 on the same side can extend into the guide guide sleeve 5 on the same side, and the positioning guide posts 7 on the same side can be inserted into the guide guide sleeve 5 on the same side. Extend into the positioning guide post 7 on the same side;

A spring 6 is nested on the positioning guide post 7;

The middle of the upper end face of the lower die base 10 is provided with a downwardly concave cutting hole 9, the shape of the cutting hole 9 is the same as that of the punch 12, the punch 12 can extend into the cutting hole 9, and the cutting hole 9 A blanking hole 8 is arranged concentrically in the middle of the die. The shape and size of the blanking hole 8 is the same as that of the trimming cutting edge 13, and the blanking hole 8 penetrates the lower die base 10.

The upper and lower end surfaces of the positioning guide sleeve 3 and the guide guide sleeve 5 are provided with edge pieces 351 protruding to the side edges, and the edge pieces 351 can prevent the upper template 1 and the fixing plate 2 from falling out.

An anti-collision groove 15 recessed downward is provided on the edge position of the lower end surface of the cutting hole 9. When the punch 12 is pressed into the cutting hole 9, the punch cutting edge 122 extends into the anti-collision groove 15. The collision between the cutting hole 9 and the punch cutting edge 122 is avoided.

The working principle of the utility model is as follows: when punching some soft materials, the raw materials pass between the fixed plate 2 and the lower die base 10, the upper die plate 1 is pushed by the punching machine to close the die, and the guide posts are positioned during the die clamping process. 7 and the guide guide post 11 are respectively embedded in the positioning guide sleeve 3 and the guide guide sleeve 5 for positioning and guiding, the punch 12 is in contact with the material in advance, and the raw material is cut by the punch cutting edge 122 to be cut into the blank of the workpiece to be formed, Then it is pressed into the cutting hole 9 by the punch 12, and then the upper die plate 1 continues to press down. When the fixing plate 2 and the lower die base 10 are completely assembled together, pressing the upper die plate 1 will squeeze the rebound spring. 4, so that the trimming cutting edge 13 is continuously pressed down, so that the blank is cut for a second time, so as to realize the trimming cutting, and the formed product falls out from the blanking hole 8 .

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments are to be considered in all respects as exemplary and not restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is therefore intended that the All changes within the meaning and range of the required equivalents are embraced within the present invention.

Claims (3)

1. An edge trimming and finishing jig comprising: the die comprises an upper die holder and a lower die holder and is characterized in that the upper die holder consists of an upper die plate and a fixed plate, the upper die plate is arranged at the upper end of the fixed plate, both sides of the upper die plate are provided with a positioning guide sleeve and a guide sleeve which are vertically and downwardly arranged, the positioning guide sleeve and the guide sleeve both penetrate through the fixed plate, the fixed plate and the upper die plate are matched and arranged into a whole, a reserved interval is reserved between the fixed plate and the upper die plate, the fixed plate and the upper die plate are in sliding fit with the positioning guide sleeve and the guide sleeve, the upper end surfaces of the positioning guide sleeve and the guide sleeve are flush with the upper end surface of the upper die plate, and the;

a rebound spring is arranged in the reserved interval, the upper end of the rebound spring is contacted with the upper template, and the lower end of the rebound spring is contacted with the fixed plate;

the lower end surface of the fixed plate is provided with a punch, a sharp raised punch cutting edge is arranged on the edge of the punch, an avoiding groove which has the same shape as the punch and penetrates through the punch is also arranged at the inner side end of the punch cutting edge, a penetrating groove which has the same shape as the avoiding groove is arranged on the fixed plate, a trimming cutting edge is also arranged at the lower end of the upper template, the shape of the trimming cutting edge is the same as that of the punch, and the trimming cutting edge penetrates into the avoiding groove;

the two sides of the lower die base are provided with guide columns and positioning guide columns, wherein the guide columns on the same side can extend into the guide sleeves on the same side, and the positioning guide columns on the same side can extend into the positioning guide columns on the same side;

the positioning guide post is nested with a spring;

the middle part of the upper end face of the lower die base is provided with a blanking hole which is sunken downwards, the shape of the blanking hole is the same as that of the punch, the punch can extend into the blanking hole, the middle part of the blanking hole is concentrically provided with a blanking hole, the shape and the size of the blanking hole are the same as those of the trimming cutting edge, the blanking hole penetrates through the lower die base, and the blanking hole are in a step-shaped structure.

2. The trimming and finishing jig according to claim 1, wherein the upper end surface and the lower end surface of the positioning guide sleeve and the guide sleeve are provided with edge pieces protruding toward the side edges, and the upper die plate and the fixed plate are prevented from falling out by the edge pieces.

3. An edge cutting and trimming jig according to claim 1, wherein the lower end face of the blanking hole is provided at an edge thereof with a downwardly concave anti-collision groove, and when the punch is pressed into the blanking hole, the cutting edge of the punch extends into the anti-collision groove to prevent the blanking hole from colliding with the cutting edge of the punch.

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