CN210996069U

CN210996069U - Symmetrical multi-step bending one-step forming die

Info

Publication number: CN210996069U
Application number: CN201921263043.3U
Authority: CN
Inventors: 魏忠; 李波
Original assignee: Haoxin Auto Parts Manufacturing Wuxi Co ltd
Current assignee: Haoxin Auto Parts Manufacturing Wuxi Co ltd
Priority date: 2019-08-06
Filing date: 2019-08-06
Publication date: 2020-07-14
Anticipated expiration: 2029-08-06

Abstract

The utility model provides a symmetry multi-step one shot forming die that bends, it relates to the stamping die field, aims at solving and generally bends the processing that needs the multiple operation to this kind of symmetry multi-step, the problem that manufacturing cost is high and finished piece precision is low. Including the terrace die of bending, pressing the material piece, the pivot of taking shape, the pivot reset spring that takes shape, cope match-plate pattern, lower bolster, bottom plate, lower mounting panel, the pivot fixed plate that takes shape, the terrace die of bending passes through fastener fixed connection on the cope match-plate pattern, the pivot quantity that takes shape is two and controls and be central symmetric distribution, the pivot of taking shape is located the pivot fixed seat that takes shape and can rotate in a flexible way, the pivot fixed plate that takes shape is located the below of the pivot of taking shape, pivot reset spring one end fixed connection that takes shape is in the pivot of taking shape other end fixed connection on the bottom plate, pivot fixed plate, lower bolster and lower bolster pass through bottom plate fixed connection under on the mounting panel.

Description

Symmetrical multi-step bending one-step forming die

Technical Field

The utility model relates to a stamping die field, concretely relates to many steps of symmetry one shot forming die that bends.

Background

The prior art stamping parts with symmetric multi-step bending characteristics generally have higher requirements on symmetry and opening tolerance. The conventional method for the part structure comprises the steps of sequentially forming a plurality of steps by using bending dies from outside to inside, and finally bending the steps into a U-shaped structure by using the dies. The scheme has the disadvantages of long stamping process, high die cost and high stamping production cost, in addition, the final part symmetry and opening tolerance are larger due to the difference of the positioning and processing precision of a plurality of sets of dies, and meanwhile, the size adjustment needs to be carried out on the plurality of sets of dies separately, so that the time and the labor are consumed, and the rectification difficulty is large.

SUMMERY OF THE UTILITY MODEL

The utility model provides a symmetry multi-step one shot forming die that bends to solve the processing that generally needs the multiple operation to this kind of symmetry multi-step that prior art exists, the high and poor problem of finished piece quality of manufacturing cost.

In order to solve the technical problem, the utility model provides a symmetrical multi-step bending one-time forming die, which comprises a bending male die, a material pressing block, a forming rotating shaft return spring, an upper template, a lower backing plate, a lower support plate, a lower mounting plate, a forming rotating shaft fixing plate, a lower bottom plate and a forming rotating shaft fixing seat, the bending male dies are fixedly connected on the upper die plate through fasteners, the number of the forming rotating shafts is two, the forming rotating shafts are distributed in a central symmetry manner from left to right, the forming rotating shaft is positioned in the forming rotating shaft fixing seat and can flexibly rotate, the forming rotating shaft fixing plate is positioned below the forming rotating shaft, one end of the forming rotating shaft return spring is fixedly connected to the forming rotating shaft, the other end of the forming rotating shaft return spring is fixedly connected to the lower backing plate, the material pressing block is positioned above a workpiece, the upper template is fixedly connected to the die carrier, and the forming rotating shaft fixing plate, the lower backing plate and the lower backing plate are fixedly connected to the lower mounting plate through the lower supporting plate.

Preferably, a nitrogen spring is mounted in the lower mounting plate of the symmetrical multi-step bending one-step forming die through a fastener.

Preferably, the forming rotating shaft fixing plate, the forming rotating shaft fixing seat and the forming rotating shaft are all precisely processed by adopting slow-moving threads.

Preferably, the material pressing block is positioned right above the workpiece, and the material pressing block is guided by the rotating shaft fixing plate.

The utility model discloses the beneficial effect who brings:

(1) the utility model can realize the rapid adjustment of the width of the opening and reduce the production cost;

(2) the utility model overcomes multiple operation positioning error has shortened production process and has improved production efficiency.

Drawings

Fig. 1 is an overall structural view in the mold open state according to the present invention;

fig. 2 is an overall structural view of the mold according to the present invention in a bottom dead center state;

the forming device comprises a bending male die 1, a pressing block 2, a forming rotating shaft 3, a nitrogen spring 4, a forming rotating shaft return spring 5, an upper die plate 6, a lower backing plate 7, a lower supporting plate 8, a lower mounting plate 9, a forming rotating shaft fixing plate 10, a lower bottom plate 11 and a forming rotating shaft fixing seat 12.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to specific embodiments.

As shown in fig. 1-2, the utility model provides a symmetrical multi-step bending one-step forming die, which comprises a bending male die 1, a pressing block 2, a forming rotating shaft 3, a forming rotating shaft reset spring 5, an upper die plate 6, a lower backing plate 7, a lower backing plate 8, a lower mounting plate 9, a forming rotating shaft fixing plate 10, a lower backing plate 11 and a forming rotating shaft fixing seat 12, wherein the bending male die 1 is fixedly connected to the upper die plate 6 through a fastening piece, the forming rotating shafts 3 are two and are distributed in central symmetry at the left and right sides, the forming rotating shafts 3 are positioned in the forming rotating shaft fixing seat 12 and can flexibly rotate, the forming rotating shaft fixing plate 10 is positioned below the forming rotating shaft 3, one end of the forming rotating shaft reset spring 5 is fixedly connected to the forming rotating shaft 3, the other end of the forming rotating shaft is fixedly connected to the lower backing plate 7, the pressing block 2 is positioned above a workpiece, the, the forming rotating shaft fixing plate 10, the lower backing plate 7 and the lower bottom plate 11 are fixedly connected on the lower mounting plate 9 through the lower support plate 8.

Further, a nitrogen spring 4 is installed in a lower installation plate 9 in the symmetrical multi-step bending one-step forming die through a fastener and is used for providing a pressing force for the pressing plate 2.

Further, the forming rotating shaft fixing plate 10, the forming rotating shaft fixing seat 12 and the forming rotating shaft 3 are precisely processed by slow-moving threads, so that the whole forming rotating shaft 3 can slide smoothly without blockage.

Furthermore, the material pressing block 2 is located right above the workpiece, and the material pressing block 2 is guided by the rotating shaft fixing plate 10, so that the precision of the whole die is ensured.

The working principle of the die is as follows: when the bending male die 1 moves downwards, the short arm of the forming rotating shaft 3 is pressed by a part, the long arm is driven to rotate reversely around the rotating center, and meanwhile, the part is bent. When the mould is in the bottom dead center state, the long arm of the forming rotating shaft 3 enables the shape of the part to reach a bending state. At this time, considering that the size of the opening of the part is out of tolerance due to springback, the forming profile of the bending male die 1 is designed with a springback negative angle, and the part can be driven to be further bent and formed towards the inner side of the opening only by properly adjusting the closing height of the die to enable the forming rotating shaft 3 to generate corresponding corner change, so that the purpose of adjusting the size of the opening of the part is achieved.

To sum up, the utility model discloses realize opening width size fast speed adjusting reduction in production cost, overcome multiple operation positioning error, shortened production processes and improved production efficiency.

It should be noted that, the utility model discloses the multiple standard component that uses all can be obtained from the market, and nonstandard component then can customize very much, the utility model discloses the connected mode that adopts such as bolted connection, welding etc. also are very common means in the mechanical field, and the inventor is no longer repeated here.

The above description is only an example of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A symmetrical multi-step bending one-step forming die comprises a bending male die (1), a pressing block (2), a forming rotating shaft (3), a forming rotating shaft reset spring (5), an upper die plate (6), a lower backing plate (7), a lower supporting plate (8), a lower mounting plate (9), a forming rotating shaft fixing plate (10), a lower backing plate (11) and a forming rotating shaft fixing seat (12), and is characterized in that the bending male die (1) is fixedly connected to the upper die plate (6) through a fastener, the two forming rotating shafts (3) are distributed in a central symmetry manner from left to right, the forming rotating shafts (3) are positioned in the forming rotating shaft fixing seat (12) and can flexibly rotate, the forming rotating shaft fixing plate (10) is positioned below the forming rotating shaft (3), one end of the forming rotating shaft reset spring (5) is fixedly connected to the forming rotating shaft (3), and the other end of the forming rotating shaft reset spring is fixedly connected to the, the pressing block (2) is located above a workpiece, the upper template (6) is fixedly connected to the die carrier, and the forming rotating shaft fixing plate (10), the lower backing plate (7) and the lower base plate (11) are fixedly connected to the lower mounting plate (9) through the lower supporting plate (8).

2. The symmetrical multi-step bending one-shot forming die of claim 1, wherein the nitrogen spring (4) is mounted in the lower mounting plate (9) of the symmetrical multi-step bending one-shot forming die by a fastener.

3. The symmetrical multi-step bending one-step forming die as claimed in claim 1, wherein the forming rotating shaft fixing plate (10), the forming rotating shaft fixing seat (12) and the forming rotating shaft (3) are all precisely machined by slow-speed wire feeding.

4. The symmetrical multi-step bending one-time forming die as claimed in claim 1, wherein the material pressing block (2) is positioned right above the workpiece and is guided by the moving direction of the rotating shaft fixing plate (10).