CN115592015A - Punching die capable of punching multiple long round holes - Google Patents

Abstract

The invention discloses a punching die capable of punching various oblong holes, which includes an upper die and a lower die. The material plate, guide sleeve, stripping screw and punch are composed; the lower die is composed of lower template, die fixing plate, guide post and die; the die is used on a mechanical press, and the punch and die It can be used to punch long round holes. By changing the punch and die of different specifications, one die can be used for multiple purposes. It can punch a variety of long round holes. When the upper die moves up and down, it is guided by the guide sleeve and the guide post. , The center of the mold is always on the center line of the pressing force, which ensures the structural strength of the mold, and at the same time makes the pressing force accurate and without deviation, and the mold has a long service life.

Description

A punching die capable of punching various oblong holes

technical field

The invention relates to the technical field of machinery and stamping dies, in particular to a punching die capable of punching various oblong holes. By replacing punches and dies of different specifications, the punching process of various oblong holes can be realized.

Background technique

The round holes on the parts can be processed by drilling and cutting with a drilling machine, but the long round holes cannot be drilled with a drilling machine. At present, it is more common to use a punching die to punch various shapes on a press. The high efficiency of long round holes The processing method is mold punching; due to the large number of oblong holes, each set of molds only processes one type of oblong hole, which will increase the number of molds too much, thereby increasing the manufacturing cost and bringing a certain impact on the capital and management of the enterprise.

Contents of the invention

The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a punching die capable of punching various oblong holes.

The technical solution provided by the present invention is: a punching die capable of punching a variety of oblong holes, including an upper die and a lower die; , polyurethane elastomer, stripping plate, guide sleeve, punch and stripping screw; the mold handle is fixed on the mechanical press, the mold handle is fixedly connected with the upper template and the punch fixing plate, and the The punch fixing plate is provided with a polyurethane elastomer, and the stripping screw passes through the upper template, the punch fixing plate and the polyurethane elastomer, and is connected with the stripping plate; the punch is embedded in the punch fixing plate, Polyurethane elastomer, stripping plate; described upper template is provided with guide sleeve; described lower mold is made up of lower template, die fixing plate, guide post and die; described lower template and die fixing plate Fixed connection; the die is embedded in the die fixing plate and fixed by a set bolt, and the die is matched with the punch; a guide post is set on the lower template, and the guide post and the guide sleeve position of the upper template Correspondingly, the guide post moves up and down in the guide sleeve.

Further, the mold shank, the upper template and the punch fixing plate are connected by punch screws, and the punch is positioned by a cylindrical pin.

Further, the lower formwork and the die fixing plate are connected by die screws, and the die is positioned with cylindrical pins.

Beneficial effects of the present invention: 1. Multiple oblong holes share a set of moulds, and it is only necessary to be equipped with oblong hole punches and dies of different specifications. By replacing the punches and dies of different specifications, one mold can be used for multiple purposes. A variety of oblong holes are used for punching; 2. When replacing the punch, only the ejection screw is removed to replace the punch of other specifications; 3. When changing the die, only the fastening bolts need to be loosened, and the die can be taken out The die of other specifications can be replaced; 4. When the upper die moves up and down, it is guided by the guide sleeve and the guide post, and the center of the die is always on the center line of the downward force, which ensures the structural strength of the die and at the same time makes the downward force The force is accurate and without deviation, the service life of the mold is long, and it can play a more efficient and greater use value.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a structural schematic diagram of the lower mold of the present invention.

In the figure: 1 upper mold, 2 lower mold, 3 mold handle, 4 upper mold plate, 5 punch fixing plate, 6 polyurethane elastomer, 7 stripping plate, 8 guide sleeve, 9 punch, 10 stripping screw, 11 bottom Template, 12 die fixing plates, 13 guide posts, 14 dies, 15 set bolts, 16 punch screws, 17 punch pins, 18 die screws, 19 die straight pins.

detailed description

For better understanding and implementation, the present invention will be further described in detail below in conjunction with the accompanying drawings.

As shown in Figures 1 and 2, a punching die capable of punching various oblong holes includes an upper die 1 and a lower die 2; Body 6, stripping plate 7, guide sleeve 8, punch 9 and stripping screw 10; one end of mold handle 3 is fixed on the mechanical press, and the other end is connected with upper template 4 and punch fixing plate 5 by screw 16, Use cylindrical pin 17 for positioning; stripping screw 10 passes through upper template 4, punch fixing plate 5, polyurethane elastomer 6, and connects with stripping plate 7; inserts punch 9 into punch fixing plate 5, passes through polyurethane Elastomer 6, stripping plate 7; fixed guide sleeve 8 under upper template 4; lower mold 2 is made up of lower template 11, die fixing plate 12, guide post 13 and die 14; lower template 11 and die fixing plate 12 is connected by screw 18 and positioned by cylindrical pin 19; the die 14 is embedded in the die fixing plate 12 and fixed by the set bolt 15, the die 14 matches the punch 9; the guide post 13 is fixed on the lower template 11, and the guide The column 13 corresponds to the position of the guide sleeve 8 of the upper template 4, and the guide column 13 moves up and down in the guide sleeve 8; when the upper mold 1 moves up and down, it is guided by the guide sleeve 8 and the guide column 13, and the center of the mold is always at the center of the downward force. On the center line, the structural strength of the mold is guaranteed.

A punching die of the present invention capable of punching various oblong holes. When assembling the die, lift the die as a whole onto the working platform of the press, and slowly lower the slide block of the press so that the handle of the upper die falls into the bottom of the press. In the mounting hole of the mold handle, fasten the mold handle of the upper mold with the slider, and use the pressure plate around the upper mold to press it onto the upper mounting surface of the press. At this time, the upper mold as a whole can move up and down with the slider of the press. The installation of the upper mold is completed; the upper mold is raised and lowered slowly, the guide post falls into the guide sleeve, and the peripheral gap between the punch and the die is kept uniform, and the pressure plate around the lower mold is pressed to the working platform of the press After the upper and lower molds are fixed as a whole, the mold installation is completed; when working, step on the pedal, run at low speed for 3-5 minutes and then carry out the punching operation, place the sheet on the designated position on the die fixing plate, step on the pressure machine pedal to realize the punching operation of oblong holes on the sheet metal. When punching oblong holes of other specifications, the mold is removed as a whole, and after replacing the punch and the corresponding die of other specifications, reinstall the mold, which can realize The die is used for punching oblong holes of other specifications.

The above are only some implementations of the present invention, not all implementations; it should be noted that the above-mentioned implementations should not be regarded as limiting the present invention, and the protection scope of the present invention should be based on the scope defined by the claims. All other embodiments obtained by persons of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Claims (3)

1. A punching die capable of punching a plurality of oblong holes comprises an upper die (1) and a lower die (2); the device is characterized in that the upper die (1) consists of a die shank (3), an upper die plate (4), a male die fixing plate (5), a polyurethane elastomer (6), a stripper plate (7), a guide sleeve (8), a male die (9) and a stripper screw (10); the die shank (3) is fixed on a mechanical press, the die shank (3) is fixedly connected with an upper die plate (4) and a male die fixing plate (5), a polyurethane elastomer (6) is arranged below the male die fixing plate (5), and a material returning screw (10) penetrates through the upper die plate (4), the male die fixing plate (5) and the polyurethane elastomer (6) and is connected with a material returning plate (7); the male die (9) is embedded in the male die fixing plate (5) and penetrates through the polyurethane elastomer (6) and the stripper plate (7); a guide sleeve (8) is arranged below the upper template (4); the lower die (2) consists of a lower die plate (11), a female die fixing plate (12), a guide post (13) and a female die (14); the lower template (11) is fixedly connected with the female die fixing plate (12); the female die (14) is embedded into the female die fixing plate (12) and fixed through a fastening bolt (15), and the female die (14) is matched with the male die (9); the lower template (11) is provided with a guide post (13), the guide post (13) corresponds to the guide sleeve (8) of the upper template (4), and the guide post (13) moves up and down in the guide sleeve (8).

2. The punching die capable of punching a plurality of oblong holes according to claim 1, wherein the die shank (3) is connected with the upper die plate (4) and the punch retainer (5) by using punch screws (16), and the punch cylindrical pin (17) is positioned.

3. The punching die capable of punching a plurality of oblong holes according to claim 1, wherein the lower die plate (11) is connected with the die fixing plate (12) by a die screw (18), and a die cylindrical pin (19) is positioned.

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