CN211386580U - Negative angle shaping mould structure of bending - Google Patents

Abstract

The utility model provides a negative-angle bending and shaping mold structure, which includes an upper mold assembly and a lower mold assembly. The bending punch and the rotating shaft, the upper die seat, the upper backing plate and the upper fixing plate are fixed in sequence from top to bottom, and become the upper half section that can move in time with the press; the nitrogen gas spring is installed in the upper die seat, and the bending punch is installed In the upper backing plate and the upper fixing plate, the rotating shaft is arranged in the upper fixing plate and mounted on the bending punch; the lower die assembly is located just below the upper die assembly, and the lower die assembly from top to bottom includes: Fixed installation between the template, the lower fixing plate, the lower backing plate and the lower die base; the lower template has a built-in bending die set corresponding to the bending punch, and the two sides of the bending die are provided with wedge fixing blocks in the lower fixing plate , wedge fixed block. The utility model stably realizes the downward bending and shaping of the parts, and can be fine-tuned, and the mold structure is simple and the cost is low.

Description

A negative angle bending and shaping die structure

technical field

The utility model mainly relates to the field of stamping dies, in particular to a negative-angle bending and shaping die structure.

Background technique

In the stamping processing industry, with negative-angle metal stamping parts, it is difficult to control the size of the product using traditional forming methods. , resulting in low production efficiency of parts, unstable parts size, and inability to mass-produce in a short time. In view of this situation, there is an urgent need for a mold structure that can ensure product accuracy and improve production efficiency.

Chinese utility model patent has been published, application number CN201620820818.2, patent name: product negative angle bending die, application date: 2016-08-01, the utility model relates to a product negative angle bending die, including an upper die set and a lower die The upper module includes an upper die base, an upper backing plate, an upper clamping plate, a stripping pad and a stripping plate, and the lower module includes a lower template, a lower backing plate and a lower die base, and the upper clamping plate is provided with a bending punch , the bending punch goes down through the stripping pad and the stripping plate, the stripping plate is provided with a stripping sub, the lower template is provided with a lower mold in Mouth, the bending mouth has a bending vertical surface for bending the product, the lower surface of the stripper and the upper surface of the lower die are parallel to each other, and the lower surface of the stripper and the lower surface of the lower die are parallel to each other. The upper surface is inclined, and the product is placed on the lower die feeder. The lower surface of the stripping feeder and the upper surface of the lower die feeder clamp the product. After the bending punch is pressed down, the product is bent at a negative angle. The utility model can bend the product with a negative angle in place at one time, compensate the bending springback, ensure the qualified product, and reduce the frequency of mold repair and the production cost.

Utility model content

The utility model provides a negative-angle bending and shaping mold structure, aiming at the above-mentioned defects of the prior art, provides a negative-angle bending and shaping mold structure, which includes an upper mold assembly and a lower mold assembly, and is characterized in that the The upper die assembly includes an upper die holder 1, an upper backing plate 2, an upper fixing plate 3, a nitrogen gas spring 8, a bending punch 9 and a rotating shaft 10. The upper die holder 1, the upper backing plate 2 and the upper fixing plate 3 are from top to The bottom is fixed in sequence, and it becomes the top half that can move in time with the press;

The nitrogen gas spring 8 is installed in the upper die base 1, the bending punch 9 is installed in the upper backing plate 2 and the upper fixing plate 3, the rotating shaft is arranged in the upper fixing plate 3 and installed on the bending punch 9 on;

The lower mold assembly is located just below the upper mold assembly, and the lower mold assembly includes from top to bottom: a lower template, a lower fixing plate, a lower backing plate and a lower mold seat, the lower template and the lower fixing plate , Fixed installation between the bottom plate and the lower die base;

The lower template has a built-in bending die corresponding to the bending punch 9, and two sides of the bending die are provided with wedge fixing blocks 12 in the lower fixing plate.

Preferably, the bottom of the wedge fixing block 12 is locked and fixed with the bottom plate by screws.

Preferably, a guide post 14 is installed on the side of the upper fixing plate 3 close to the lower formwork, and a guide post hole 15 is provided on the side of the lower formwork close to the upper fixing plate 3 corresponding to the guide post 14 .

Preferably, a pair of bending punches 9 are arranged opposite to each other, and are respectively arranged on both sides of the bending die.

Preferably, the bottom of the bending die is fixedly connected to the lower template through screws.

Preferably, the upper die base 1 , the upper backing plate 2 and the upper fixing plate 3 are fixed by screws.

Preferably, the lower template, the lower fixing plate, the lower backing plate and the lower mold base are fixed by screws.

The beneficial effects of the utility model are as follows: the downward bending and shaping of the workpiece can be stably realized, and fine adjustment is possible, and the mold structure is simple and the cost is low.

Description of drawings

Fig. 1 is the structural diagram of the utility model in the closed state;

Fig. 2 is the structural diagram of the utility model in the state of mold opening;

In the figure,

1. Upper die base; 2. Upper backing plate; 3. Upper fixing plate; 4. Lower template; 5. Lower fixing plate; 6. Lower backing plate; 7. Lower die holder; 8. Gas spring; 9. Bending Punch; 10, shaft; 11, bending die; 12, wedge fixing block; 13, part; 14, guide post; 15, guide post hole.

Detailed ways

As shown in Figures 1-2, the utility model includes: an upper die assembly and a lower die assembly, characterized in that the upper die assembly includes an upper die base 1, an upper backing plate 2, and an upper fixing plate 3 , nitrogen gas spring 8, bending punch 9 and rotating shaft 10, upper die base 1, upper backing plate 2 and upper fixing plate 3 are fixed in sequence from top to bottom, becoming the upper half section that can move in time with the press;

The nitrogen gas spring 8 is installed in the upper die base 1, the bending punch 9 is installed in the upper backing plate 2 and the upper fixing plate 3, and the rotating shaft 10 is arranged in the upper fixing plate 3 and installed in the bending punch. head 9;

The lower mold assembly is located just below the upper mold assembly, and the lower mold assembly includes from top to bottom: a lower template, a lower fixing plate, a lower backing plate and a lower mold seat, the lower template and the lower fixing plate , Fixed installation between the bottom plate and the lower die base;

The lower template has a built-in bending die corresponding to the bending punch 9, and two sides of the bending die are provided with wedge fixing blocks 12 in the lower fixing plate.

In use, the workpiece 13 (semi-finished product is placed on the bending die; the punch press works, the upper die base 1, the upper backing plate 2, the upper fixing plate 3, and the bending punch 9 start to descend, and the bending punch 9 is in In the process of continuing to descend, it first comes into contact with the inclined surface of the wedge fixing block 12, the bending punch 9 continues to descend, the wedge fixing block 12 adjusts the punch to press the workpiece 13, the nitrogen gas spring 8 compresses upward, and the mold continues to descend until the mold is closed. , the part 13 is bent and formed.

After the punching operation is completed, the punch slider starts to move upward, and the upper die base 1, the upper backing plate 2, and the upper fixing plate 3 also start to move upward. At this time, the wedge fixing block 12 adjusts the bending punch 9 to rotate the shaft outward. Rotate, about 3°), the stroke of the nitrogen gas spring 8 is reset, the bending punch 9 avoids the negative angle of the workpiece 13, the mold opening ends, and the workpiece 13 is taken out.

In this embodiment, preferably, the bottom of the wedge fixing block 12 is locked and fixed with the lower backing plate by screws.

With the above structure, the wedge fixing block 12 and the lower backing plate are fixed by screws to prevent them from shaking and play a role of stability.

Preferably in this implementation, a guide post 14 is installed on the side of the upper fixing plate 3 close to the lower formwork, and a guide post hole 15 is provided on the side of the lower formwork close to the upper fixing plate 3 corresponding to the guide post 14.

With the above structure, the lower die assembly is located just below the upper die assembly, and the guide posts 14 are provided to play a positioning role.

In this embodiment, preferably, a pair of bending punches 9 are arranged opposite to each other, and are respectively arranged on both sides of the bending die.

The above structure is provided according to the actual situation of the product, so as to ensure the bending effect of the product 13 and improve the work efficiency.

Preferably in this implementation, the bottom of the bending die is fixedly connected to the lower template through screws.

The above structure is provided, and the bending die is fixed by screws to prevent it from shaking and play a role of stability.

In this implementation, preferably, the upper die base 1 , the upper backing plate 2 and the upper fixing plate 3 are fixed by screws.

Preferably in this implementation, the lower template, the lower fixing plate, the lower backing plate and the lower die base are fixed by screws.

With the above structure, the stability of the upper die assembly and the lower die assembly itself is ensured through the use of bolts, and the work efficiency is improved.

The above-mentioned embodiments merely illustrate the principles and effects of the present patent application, but are not intended to limit the present patent application. Anyone skilled in the art can make modifications or changes to the above embodiments without departing from the spirit and scope of the present patent application. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed in this patent application shall still be covered by the claims of this patent application.

Claims (7)

1. The negative-angle bending and shaping die structure is characterized by comprising an upper die assembly and a lower die assembly, wherein the upper die assembly comprises an upper die base (1), an upper base plate (2), an upper fixing plate (3), a nitrogen spring (8), a bending punch (9) and a rotating shaft (10), and the upper die base (1), the upper base plate (2) and the upper fixing plate (3) are sequentially fixed from top to bottom to form an upper half section capable of moving in time along with a press;

the nitrogen spring (8) is arranged in the upper die holder (1), the bending punch (9) is arranged in the upper base plate (2) and the upper fixing plate (3), and the rotating shaft (10) is arranged in the upper fixing plate (3) and arranged on the bending punch (9);

the lower mould subassembly is located the mould subassembly under, lower mould subassembly from the top down includes: the lower die plate (4), the lower fixing plate (5), the lower cushion plate (6) and the lower die seat (7) are fixedly mounted among the lower die plate (4), the lower fixing plate (5), the lower cushion plate (6) and the lower die seat (7);

the lower die plate (4) is internally provided with a bending female die (11) corresponding to the bending punch (9), and wedge fixing blocks (12) are arranged on two sides of the bending female die (11) in the lower fixing plate (5).

2. The negative angle bend reshaping mold structure of claim 1, wherein: the bottom of the wedge fixing block (12) is locked and fixed with the lower backing plate (6) through screws.

3. The negative angle bend reshaping die structure of claim 2, wherein: and a guide post (14) is arranged on one side of the upper fixing plate (3) close to the lower template (4), and a guide post hole (15) is arranged on one side of the lower template (4) close to the upper fixing plate (3) corresponding to the guide post (14).

4. The negative angle bend reshaping mold structure of claim 3, wherein: the bending punch heads (9) are oppositely arranged and are respectively arranged on two sides of the bending female die (11).

5. The negative angle bend reshaping mold structure of claim 4, wherein: the bottom of the bending female die (11) is fixedly connected with the lower template (4) through screws.

6. The negative angle bend reshaping mold structure of claim 5, wherein: the upper die holder (1), the upper backing plate (2) and the upper fixing plate (3) are fixed through screws.

7. The negative angle bend reshaping mold structure of claim 6, wherein: the lower die plate (4), the lower fixing plate (5), the lower backing plate (6) and the lower die seat (7) are fixed through screws.

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