CN214391860U

CN214391860U - Sprocket punching press blanking mould

Info

Publication number: CN214391860U
Application number: CN202120392869.0U
Authority: CN
Inventors: 何斌
Original assignee: Shanghai Hantong Automobile Parts Co ltd
Current assignee: Shanghai Hantong Automobile Parts Co ltd
Priority date: 2021-02-22
Filing date: 2021-02-22
Publication date: 2021-10-15
Anticipated expiration: 2031-02-22

Abstract

The application relates to a sprocket punching press blanking mould belongs to mould processing technology field, and it includes: a lower die; and set up and be in lower mould top and with the last mould of lower mould looks adaptation, wherein, the lower mould is including: a base plate; the lower fixed block is arranged at the top of the bottom plate; and set up and be in the lower formed part at lower stator top, go up the mould including: a top plate; the upper fixed block is arranged at the bottom of the top plate; and the movable block is slidably sleeved on the lower forming part. The application provides a sprocket punching press blanking mould can make the peripheral clout of steel sheet increase by the angle of buckling of punching press time through the movable block of cover on the lower mould formed part and install the spring in the movable block bottom to improve the separation efficiency of clout and model, improve the quality of sprocket.

Description

Sprocket punching press blanking mould

Technical Field

The application relates to the field of die machining, in particular to a sprocket stamping and blanking die.

Background

The mold refers to a tool for molding an article, and generally refers to various molds and tools for obtaining a desired product by injection molding, blow molding, extrusion, die casting, forging, smelting, stamping, stretching, and the like.

At present in the use of sprocket mould, often adopt hydraulic drive to go up the mould and carry out the punching press to the steel sheet on the lower mould, wherein go up the mould and be the terrace die, the lower mould is the die, treats that the punched steel sheet is the strip, and the conveyer belt through intermittent type start passes through the machining region between last mould and the lower mould in proper order, utilizes the cooperation of terrace die and die to carry out machine-shaping to the steel sheet to obtain the sprocket of preliminary working. In the stamping process of the sprocket die, the steel plate sometimes has fatigue fracture.

In view of the related art in the above, the inventors consider that there are drawbacks in that: the existing die is applied to the stamping process of a steel plate, and because the processing area is connected with the non-processing area steel plate, the separation difficulty of the steel plate in the processing area is increased when the edge is stamped and broken, so that the incomplete breakage condition is easy to occur in the stamping process, a large number of sawteeth are arranged around the formed chain wheel, and inconvenience is brought to the use of the chain wheel stamping die.

SUMMERY OF THE UTILITY MODEL

In order to reduce the cracked condition of steel sheet that present stamping die appears in the use, this application provides a sprocket punching press blanking mould, can make the peripheral clout of steel sheet increase by the angle of buckling of punching press through the movable block of cover on the lower mould formed part and install the spring in the movable block bottom to improve the separation efficiency of clout and model, improve the quality of sprocket.

The application provides a pair of sprocket punching press blanking mould adopts following technical scheme:

a sprocket punching blanking die, includes: a lower die; and set up and be in lower mould top and with the last mould of lower mould looks adaptation, wherein, the lower mould is including: a base plate; the lower fixed block is arranged at the top of the bottom plate; and set up and be in the lower formed part at lower stator top, go up the mould including: a top plate; the upper fixed block is arranged at the bottom of the top plate; and the movable block is slidably sleeved on the lower forming part.

Through adopting above-mentioned technical scheme, the steel sheet that the processing can be treated in the cooperation of going up mould and lower mould is punched, and simultaneously, the bottom plate can be fixed on the workstation, and the roof can be connected with external drive spare, goes up the stator and is used for installing formed part and lower formed part respectively with lower stator to make the sprocket take shape, simultaneously, the elastic component can make the movable block relative lower formed part slide with the movable block, and the angle of buckling of the peripheral clout of steel sheet when being punched increases, thereby improves the shaping effect of sprocket.

Preferably, the elastic member includes: a blind hole formed in the top of the lower fixed block; and the spring is arranged at the bottom of the blind hole, wherein the movable block is arranged at the top of the spring.

Through adopting above-mentioned technical scheme, when the movable block received the punching press of mould, the movable block can be at the effect of spring downstream down, and the spring is compressed simultaneously to make the steel sheet be located the partial follow-up block on the movable block and remove, thereby increase the angle of buckling of steel sheet, the deformation of steel sheet on the increase movable block, thereby improve the separation efficiency of model and clout. In addition, the blind hole can be used for accommodating a compressed spring, and the maximum sliding stroke of the movable block is increased.

Preferably, the upper molding member includes: the central block is embedded at the bottom of the upper fixed block; and the upper bending block is annularly arranged at the bottom of the central block, an upper bending part is annularly arranged at the outer edge of the upper bending block, upper wavy teeth are annularly arranged at the outer edge of the upper bending part, and the central block protrudes out of the upper bending block.

Through adopting above-mentioned technical scheme, center block and last wave tooth can extrude the steel sheet that receives the punching press with specific shape, and simultaneously, the portion of bending can extrude the steel sheet that receives the punching press to make the steel sheet take shape tentatively, with the user demand who satisfies the sprocket.

Preferably, the lower molding member includes: the lower bending block is embedded in the top of the lower fixed block, a lower bending portion matched with the upper bending portion is arranged on the outer edge of the top of the lower bending block, lower wavy teeth matched with the upper wavy teeth are annularly arranged on the outer edge of the lower bending portion, a blanking hole matched with the bottom surface of the central block is formed in the top of the lower bending block, and the moving block is sleeved on the lower bending block.

Through adopting above-mentioned technical scheme, go up the portion of bending and can make when the portion of bending cooperates with the portion of bending down and generate annular bending on the steel sheet that receives the punching press, go up the wave tooth and can make and be surely go out the profile of wave tooth shape on the steel sheet that receives the punching press with the cooperation of wave tooth down, simultaneously, the steel sheet that the center block was amputated can fall into in the blanking hole to satisfy the user demand of sprocket.

Preferably, the bottom of the blind hole is provided with a limiting rod, the spring is sleeved on the limiting rod, and the limiting rod penetrates through the movable block in a sliding mode.

Through adopting above-mentioned technical scheme, the gag lever post can effectively restrict the motion of spring horizontal direction. Meanwhile, the guide function is realized on the moving block, and the verticality of the moving track of the moving block in the moving process of the moving block along the vertical direction is improved.

Preferably, the bottom of the limiting rod is provided with a stop block.

Through adopting above-mentioned technical scheme, the dog can effectively restrict the longitudinal movement trend of gag lever post to improve the structural stability of gag lever post in stamping process.

Preferably, the top of the upper bending block is provided with a cushion block, and the cushion block is embedded in the upper fixing block.

Through adopting above-mentioned technical scheme, the cushion can adopt withstand voltage material to make, can effectively reduce the impact that the piece received of bending on, the life of the piece of bending on the extension.

Preferably, the outer edge of the upper bending block is annularly provided with a pressing block, the pressing block is embedded in the upper fixed block, and the pressing block protrudes out of the upper fixed block.

Through adopting above-mentioned technical scheme, the briquetting can reduce the stamping process of going up mould and lower mould, and the steel sheet that receives the punching press leads to the whole condition that produces the motion of steel sheet because of deformation to effectively improve forming die's quality.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through the blind hole formed in the lower fixed block, the limiting rod arranged in the blind hole and the spring sleeved on the limiting rod, the movable block sleeved on the limiting rod in a sliding mode can slide along the limiting rod, the movable block can move a steel plate on the movable block downwards in the stamping process, and meanwhile the position of the steel plate on the lower bending block is unchanged, so that the bending angle of the model and the excess material is increased, and the separation effect of the model and the excess material is improved;

2. the steel plate cut by the center block can be collected through the blanking hole, so that secondary recovery and post-recovery utilization of the steel plate are facilitated, and waste materials generated in machining are effectively utilized.

Drawings

Fig. 1 is a schematic overall structure diagram of a stamping and blanking die in an embodiment of the present application.

Fig. 2 is a schematic structural diagram of an upper mold in the embodiment of the present application.

Fig. 3 is a schematic view of a lower die structure in the embodiment of the present application.

Description of reference numerals: 1. an upper die; 11. a top plate; 12. fixing the block; 13. a center block; 14. briquetting; 15. cushion blocks; 16. an upper bending block; 2. a lower die; 21. a lower bending block; 22. a blanking hole; 23. a base plate; 24. a moving block; 25. positioning holes; 3. a lower fixed block; 31. blind holes; 32. a spring; 33. a limiting rod; 34. and a stop block.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses sprocket punching press blanking mould.

Referring to fig. 1, a sprocket punching press blanking mould, including lower mould 2 and with the last mould 1 of lower mould 2 looks adaptation, can treat the steel sheet of punching press through the cooperation of last mould 1 with lower mould 2 and carry out machine-shaping

Referring to fig. 1 and 2, the upper die 1 includes an upper fixed block 12, and the upper fixed block 12 is connected to an external driving member (not shown), in this embodiment, the driving member is a cylinder, so that the upper fixed block 12 can be driven by the cylinder to periodically ascend and descend, thereby punching the steel plate on the lower die 2. Meanwhile, a center block 13 is embedded in the center of the bottom of the upper stator block 12, and in the present embodiment, the bottom surface of the center block 13 is circular, so that a circular through hole is formed in the middle of the sprocket.

Meanwhile, cushion blocks 15 are arranged on the periphery of the central block 13 in a surrounding mode, the cushion blocks 15 are embedded in the upper fixing block 12, an upper bending block 16 is attached to the bottom of the cushion blocks 15, an upper bending portion is arranged on the outer edge of the bottom of the upper bending block 16, the outer edge of the upper bending block 16 is bent in a circle in an uneven mode, and upper wavy teeth are arranged on the outer edge of the upper bending portion. Specifically, the outer edge of the upper bending block 16 is higher than the non-outer edge portion of the upper bending block 16 in the vertical direction, the bottom of the central block 13 protrudes from the upper bending block 16, and the bottom of the upper bending block 16 protrudes from the bottom of the lower fixed block 3.

In addition, in this embodiment, the material of the cushion block 15 is cast iron, and the cast iron has a good anti-extrusion capability, so that the maximum bearing pressure of the upper bending block 16 is enhanced, and the service life of the upper bending block 16 is effectively prolonged.

Referring to fig. 1 and 3, the lower die 2 further includes a bottom plate 23, a lower fixed block 3 and a movable block 24, wherein the bottom plate 23 is fixed on a machine table (not shown in the figure), the lower fixed block 3 is installed at the top of the bottom plate 23, a lower bending block 21 is installed at the center of the top of the lower fixed block 3, a lower bending portion is provided at the outer edge of the lower bending block 21, the lower bending portion is engaged with the upper bending portion, and a lower wave tooth matched with the upper wave tooth is provided at the outer edge of the lower bending portion. The center of the top of the lower bending block 21 is provided with a blanking hole 22, the shape and the size of the blanking hole 22 are matched with the central hole, and the blanking hole 22 extends to the top surface of the lower fixed block 3.

When the upper die 1 punches the steel plate on the lower die 2, the central block 13 firstly contacts with the steel plate, then the central block 13 punches the steel plate to form a round hole, waste materials generated by cutting the round hole fall on the top of the lower fixed block 3 through the blanking hole 22, and then the upper bending block 16 interacts with the lower bending block 21 to enable the outer edge of the round hole to be bent for one circle. And a circle of wavy teeth are punched on the outer edge of the bent part, so that the appearance use requirement of the chain wheel is met.

In the actual use process of the sprocket stamping and blanking die, the situation that the steel plates on the periphery of the die cannot be completely broken and separated sometimes occurs. Through the analysis, this is because the steel sheet of treating the punching press is a strip whole board, and the strip steel sheet passes the machining area between last mould 1 and the lower mould 2 through the conveyer belt of intermittent type start-up in proper order, and in stamping process, go up stator 12 and exert the punching press force to the steel sheet on 3 surfaces of lower stator simultaneously, buckle the deformation through the punching press force with the steel sheet to make model and clout separation, and the strip whole board has increased the cracked degree of difficulty of steel sheet bending, thereby the clout that has not yet separated at model outer fringe residual part easily.

To solve this problem. In this embodiment, two blind holes 31 have been seted up at the top of lower fixed block 3, and the quantity of blind hole 31 is two, and two blind holes 31 are located the both sides of bending piece 21 down respectively, and at the vertical stopper 33 that is fixed in the bottom center of blind hole 31, slide the cover at the top of stopper 33 and be equipped with movable block 24, and simultaneously, movable block 24 overlaps and establishes under on bending piece 21, in addition, the cover is equipped with spring 32 on stopper 33, and the top of spring 32 and the bottom butt of movable block 24.

During the stamping of the upper and lower dies 1, 2, the steel plate is placed on the moving block 24.

In the process that the upper fixed block 12 is pressed downwards, the bottom of the upper fixed block 12 is abutted to the top of the movable block 24, the movable block 24 moves downwards along the limiting rod 33, and the spring 32 is compressed, so that the displacement of the steel plate in the non-processing area is driven, the bending angle of the steel plate is increased, and the bending and breaking efficiency of the steel plate is improved.

In the lifting process of the upper fixed block 12, the spring 32 naturally extends, meanwhile, the movable block 24 is driven to reset, then the conveyor belt is started, the steel plate which is punched is conveyed out of the punching area, and the subsequent steel plate enters the punching area so as to be punched for the next time.

In addition, in order to improve the fracture effect, the pressing block 14 is arranged on the periphery of the upper bending block in a surrounding mode, and the pressing block 14 slightly protrudes out of the upper fixed block 12, so that the pressing block 14 contacts the movable block 24 in advance of the upper fixed block 12 in the stamping process, and the bottom surface of the pressing block 14 is smaller than the original upper fixed block 12, so that the pressure applied to the movable block 24 by the unit area of the bottom surface of the pressing block 14 can be increased when the stamping force is constant, the deformation degree of the steel plate is effectively increased, and the fracture efficiency of the steel plate is improved.

The implementation principle of the sprocket stamping and blanking die in the embodiment of the application is as follows:

when the upper die 1 punches, the upper die 1 moves downwards as a whole, then the pressing block 14 contacts with the surface of the steel plate to be punched, and the steel plate follower block 24 on the outer edge of the top of the lower die 2 moves downwards through the spring 32 and the moving block 24 connected to the limiting rod 33 in a sliding manner.

Then the central block 13 and the upper bending block are respectively matched with the blanking hole 22 and the lower bending block, so that the steel plate in the middle processing area of the lower die 2 is formed into a chain wheel shape.

Meanwhile, the outer edge of the chain wheel is bent, so that the outer edge of the chain wheel is bent and broken, and the model is separated from the excess material.

And finally, the upper die 1 is reset integrally, and the conveyor belt sends out the die and simultaneously moves the unmachined steel plate into a machining area so as to carry out next stamping.

The above are all preferred embodiments of the present application, and the present embodiment is only explained for the present application, and the protection scope of the present application is not limited by this, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A sprocket punching blanking die, includes: a lower die (2); and set up lower mould (2) top and with last mould (1) of lower mould (2) looks adaptation, wherein, lower mould (2) including: a bottom plate (23); the lower fixed block (3) is arranged at the top of the bottom plate (23); and set up and be in the lower formed part at lower stator (3) top, go up mould (1) including: a top plate (11); an upper fixed block (12) arranged at the bottom of the top plate (11); and set up last formed part on last stator (12), characterized in that, the top of lower stator (3) is provided with the elastic component, the top of elastic component is provided with movable block (24), wherein, movable block (24) slip cover is established under on the formed part.

2. The sprocket stamping and blanking die as claimed in claim 1, wherein the elastic member comprises: a blind hole (31) arranged at the top of the lower fixed block (3); and a spring (32) arranged at the bottom of the blind hole (31), wherein the movable block (24) is arranged at the top of the spring (32).

3. The sprocket stamping and blanking die as claimed in claim 1, wherein the upper forming member comprises: a central block (13) embedded at the bottom of the upper fixed block (12); and an upper bending block (16) annularly arranged at the bottom of the central block (13), wherein an upper bending part is annularly arranged at the outer edge of the upper bending block (16), upper wavy teeth are annularly arranged at the outer edge of the upper bending part, and the central block (13) protrudes out of the upper bending block (16).

4. The sprocket stamping and blanking die according to claim 3, wherein the lower forming member comprises: the lower bending block (21) is embedded at the top of the lower fixed block (3), a lower bending portion matched with the upper bending portion is arranged at the outer edge of the top of the lower bending block (21), lower wavy teeth matched with the upper wavy teeth are annularly arranged at the outer edge of the lower bending portion, a blanking hole (22) matched with the bottom surface of the central block (13) is formed in the top of the lower bending block (21), and the movable block (24) is sleeved on the lower bending block (21).

5. The sprocket stamping and blanking die as claimed in claim 2, wherein a limiting rod (33) is disposed at the bottom of the blind hole (31), the spring (32) is sleeved on the limiting rod (33), and the limiting rod (33) is slidably disposed on the movable block (24).

6. The sprocket stamping and blanking die according to claim 5, wherein a stopper (34) is arranged at the bottom of the limiting rod (33).

7. The sprocket stamping and blanking die as claimed in claim 3, wherein a cushion block (15) is arranged on the top of the upper bending block (16), and the cushion block (15) is embedded in the upper fixed block (12).

8. The sprocket stamping and blanking die as claimed in claim 3, wherein the outer edge of the upper bending block (16) is provided with a pressing block (14), the pressing block (14) is embedded in the upper fixed block (12), and the pressing block (14) protrudes from the upper fixed block (12).