Blanking dies for automobile chassis parts

Abstract

The present invention discloses a punching die for automobile chassis parts, including an upper template and a lower template, wherein the lower template is provided with a floating mounting seat for mounting a connecting rod to be processed, and the upper template is correspondingly provided with two punches, and the outer periphery of the floating mounting seat is provided with a first slider, a second slider, a third slider and a fourth slider, and the first slider and the second slider can be respectively floated and arranged on two front base blocks through elastic members, and the upper template is pressed downward to drive the first slider, the second slider and the floating mounting seat to move downward, and the upper template is pressed downward to drive the first slider and the third slider moving to the bottom to move and extend into the left opening of the connecting rod, and the upper template is pressed downward to drive the second slider and the fourth slider to move and extend into the right opening of the connecting rod. Two holes are formed synchronously, and the obtained product has high precision.

Description

Technical Field

[0001] The invention relates to a cold stamping forming die, in particular to a blanking die for automobile chassis parts. Background Art

[0002] At present, most chassis parts of automobiles have the process of drilling holes, but the shapes of parts are more complex and more difficult to process, so the problem of shape accuracy of parts after forming becomes prominent. Figure 1 As shown in the figure, the connecting rod structure to be formed by the present invention has two openings at both ends and is a hollow structure. Now two holes need to be formed at both ends of the connecting rod, and the center distance of the two holes is required to have a high precision. The existing method is to form the hole structures one by one, that is, two hole forming processes.

[0003] However, the two-step punching process requires a large number of equipment and molds, which is costly, and even requires manual operation to achieve the overall operation process. Moreover, the precision of parts formed by this punching method is not high, especially the center distance accuracy cannot meet the required standards. Based on the above problems, engineers in the industry will naturally consider punching holes on both sides at the same time to ensure the center distance of parts, but there are difficulties in demolding the parts after forming. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a punching die for automobile chassis parts, which can simultaneously form two holes and obtain a product with high precision.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a blanking die for automobile chassis parts, including an upper template and a lower template, the lower template is provided with a floating mounting seat for installing a connecting rod to be processed, the upper template is correspondingly provided with two punches, the outer periphery of the floating mounting seat is provided with a first slider, a second slider, a third slider and a fourth slider, the first slider and the second slider can be floated on two front base blocks respectively through elastic parts, the upper template is pressed down to drive the first slider, the second slider and the floating mounting seat to move downward, the upper template is pressed down to drive the first slider and the third slider to move to the bottom to extend into the left opening of the connecting rod, and the upper template is pressed down to drive the second slider and the fourth slider to move into the right opening of the connecting rod.

[0006] A further preferred embodiment of the present invention is as follows: the first slider and the second slider are located on the front side of the floating mounting seat, the third slider and the fourth slider are located on the rear side of the floating mounting seat, the first slider and the third slider move on the same straight line, and the second slider and the fourth slider move on the same straight line.

[0007] A further preferred embodiment of the present invention: the first slider and the third slider lock the opening of the left end of the connecting rod in the front and rear directions of the connecting rod, and the third slider and the fourth slider lock the opening of the right end of the connecting rod in the front and rear directions of the connecting rod. The ends of the first slider, the second slider, the third slider and the fourth slider are all provided with mutually matching bite textures and semicircular grooves, and the ends of the first slider and the third slider can be spliced ​​to form a closed circular groove, and the ends of the second slider and the fourth slider can be spliced ​​to form a closed circular groove.

[0008] The upper template is provided with a first pressing block, and the two front base blocks are respectively located on the two sides of the first slider. The top of the front base block close to the first pressing block is an inclined surface, and the bottom of the first pressing block close to the two front base blocks are inclined surfaces. The first pressing block acts on the two front base blocks to push the first slider and the second slider to move.

[0009] A further preferred embodiment of the present invention is as follows: the front base block is provided with a groove for installing the first slider or the second slider, the first slider or the second slider can move up and down in the groove, and the elastic member acts on the first slider or the second slider so that the first slider or the second slider is located at the top of the groove.

[0010] A further preferred solution of the present invention is as follows: a guide seat is provided on the lower template, a slide groove is provided on the surface of the guide seat, and the front base block is installed in the slide groove and can move along the length direction of the slide groove.

[0011] A further preferred solution of the present invention is that the lower template is fixedly provided with a limit block, the limit block is wrapped around the outer periphery of the first pressing block, and the first pressing block can move up and down along the inner side of the limit block.

[0012] A further preferred embodiment of the present invention is that the first slider end and the third slider end can be spliced ​​to form a closed structure adapted to the inner wall of the connecting rod end, and the second slider end and the fourth slider end can be spliced ​​to form a closed structure adapted to the inner wall of the connecting rod end.

[0013] A further preferred embodiment of the present invention: the upper template is provided with a second pressure block, the third slider is installed on the lower template through the first rear base block, the first rear base block is located on the front side of the second pressure block, the top of the first rear base block close to the second pressure block is an inclined surface, the bottom of the second pressure block close to the first rear base block is an inclined surface, the second pressure block acts on the first rear base block to push the third slider to move, the lower template is fixedly provided with a limit seat, the limit seat is wrapped around the outer periphery of the second pressure block, and the second pressure block can move up and down along the inner side of the limit block seat.

[0014] A further preferred embodiment of the present invention: the upper template is provided with a third pressure block, the fourth sliding block is installed on the lower template through the second rear base block, the second rear base block is located on the front side of the third pressure block, the top of the second rear base block close to the third pressure block is an inclined surface, the bottom of the third pressure block close to the second rear base block is an inclined surface, the third pressure block acts on the second rear base block to push the fourth sliding block to move, the lower template is fixedly provided with a limit seat, the limit seat is wrapped around the outer periphery of the third pressure block, and the third pressure block can move up and down along the inner side of the limit block seat.

[0015] Compared with the prior art, the advantage of the present invention is that a floating mounting seat is provided for mounting the connecting rod to be processed, and two punches are provided on the corresponding upper template for forming the two holes of the connecting rod. The downward pressure of the upper template will drive the two punches to move downward synchronously, thereby realizing the synchronous forming of the two holes. In order to improve the forming accuracy of the product, the present invention is provided with a first slider, a second slider, a third slider and a fourth slider on the periphery of the floating mounting seat. The upper template is pressed downward to drive the first slider and the third slider to move to the bottom and extend into the left opening of the connecting rod. The first slider and the third slider extend into the connecting rod from two directions, locking the structure at the position of the connecting rod to be processed and supporting the structure of this part. Similarly, the second slider and the fourth slider will lock the structure at another position of the connecting rod to be processed and support the structure of this part. It is effectively ensured that the punch moves downward along a predetermined straight line, and no position deviation occurs during the entire stamping process, thereby ensuring the precision of product forming.

[0016] In addition, the present invention designs a floating mounting seat, and the first slider and the second slider can be respectively floated and set on the two front base blocks through elastic members. That is, after the punching and forming of the holes, the upper template moves upward. On the one hand, the floating mounting seat itself will apply an upward force to the connecting rod; on the other hand, when the upper template initially moves upward, the first slider and the second slider are still located in the opening at the end of the connecting rod. The first slider and the second slider will apply an upward force to the connecting rod, and then the first slider and the second slider will withdraw from the opening at the end of the connecting rod to realize the demoulding of the connecting rod. In summary, the present invention can simultaneously form two punching holes and demould to obtain the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments, but those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be used as a limitation on the scope of the present invention. In addition, unless otherwise specified, the drawings are only schematically representing the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0018] Figure 1 is a schematic diagram of the structure of the connecting rod;

[0019] Figure 2 It is a structural schematic diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the template of the present invention.

[0021] Figure 4 It is a structural schematic diagram of the first sliding block part of the present invention;

[0022] Figure 5 It is a schematic diagram of the internal structure of the present invention. DETAILED DESCRIPTION

[0023] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0024] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0025] like Figures 1 to 5 As shown: the punching die of automobile chassis parts includes an upper template 1 and a lower template 2. The lower template 2 is provided with a floating mounting seat 3 for mounting a connecting rod 10 to be processed. The upper template 1 is correspondingly provided with two punches. The outer periphery of the floating mounting seat 3 is provided with a first slider 4, a second slider 5, a third slider 6 and a fourth slider 7. The first slider 4 and the second slider 5 can be respectively floated on two front base blocks 8 through an elastic member 11. The upper template 1 is pressed down to drive the first slider 4, the second slider 5 and the floating mounting seat 3 to move downward. The upper template 1 is pressed down to drive the first slider 4 and the third slider 6 moving to the bottom to move into the left opening of the connecting rod 10. The upper template 1 is pressed down to drive the second slider 5 and the fourth slider 7 to move into the right opening of the connecting rod 10. The floating mounting seat 3 involved in the present invention, that is, an elastic member 12 is provided on the surface of the mounting seat to support the connecting rod 10 to be processed to be suspended relative to the mounting bottom surface of the floating mounting seat 3. When the upper template 1 is pressed down, it will act on the connecting rod 10 to be processed or the elastic member 12, so that the connecting rod 10 to be processed is pressed down into place. Correspondingly, when the upper mold plate 1 moves upward and separates from the lower mold plate 2 , the finished connecting rod 10 will float upward again due to the force of the elastic member 12 , which helps the demoulding of the connecting rod 10 .

[0026] The first slider 4 and the second slider 5 are located at the front side of the floating mounting seat 3, and the third slider 6 and the fourth slider 7 are located at the rear side of the floating mounting seat 3. The first slider 4 and the third slider 6 move on the same straight line, and the second slider 5 and the fourth slider 7 move on the same straight line. The first slider 4 and the third slider 6 abut against each other, and the second slider 5 and the fourth slider 7 abut against each other, locking the position of the end of the connecting rod 10.

[0027] The first slider 4 and the third slider 6 lock the opening of the left end of the connecting rod 10 in the front and rear directions of the connecting rod 10, and the third slider 6 and the fourth slider 7 lock the opening of the right end of the connecting rod 10 in the front and rear directions of the connecting rod 10. The ends of the first slider 4, the second slider 5, the third slider 6, and the fourth slider 7 are all provided with mutually matching bite textures 9 and semicircular notches, and the ends of the first slider 4 and the third slider 6 can be spliced ​​to form a closed circular notch, and the ends of the second slider 5 and the fourth slider 7 can be spliced ​​to form a closed circular notch. The ends of the first slider 4 and the third slider 6 can be spliced ​​to form a closed structure adapted to the inner wall of the end of the connecting rod 10, and the ends of the second slider 5 and the fourth slider 7 can be spliced ​​to form a closed structure adapted to the inner wall of the end of the connecting rod 10. That is, the first slider 4 and the third slider 6 of the present invention are locked by the bite texture 9 after moving, and the stress of the outward expansion when the hole is turned is controlled. The second slider 5 and the fourth slider 7 are the same. The present invention can effectively improve the precision of product molding.

[0028] The upper template 1 is provided with a first pressing block 21, and two front base blocks 8 are respectively located on two sides of the first slider 4. The top of the front base block 8 close to the first pressing block 21 is an inclined surface, and the bottom of the first pressing block 21 close to the two front base blocks 8 is an inclined surface. The first pressing block 21 acts on the two front base blocks 8 to push the first slider 4 and the second slider 5 to move. The structural arrangement of the first pressing block 21 and the front base block 8 enables the first slider 4 and the second slider 5 to move along a predetermined direction.

[0029] The front base block 8 is provided with a groove for installing the first slider 4 or the second slider 5. The first slider 4 or the second slider 5 can move up and down in the groove. The elastic member acts on the first slider 4 or the second slider 5 so that the first slider 4 or the second slider 5 is located at the top of the groove. The upper template 1 presses down to act on the elastic member 11, and the elastic member 11 applies force to drive the first slider 4 and the second slider 5 to move downward. Of course, when the upper template 1 is separated from the lower template 2, the force on the elastic member is reduced or no longer applied, and the first slider 4 and the second slider 5 will naturally be subjected to the force of the elastic member again, driving them to move upward.

[0030] The lower template 2 is provided with a guide seat 22, and a slide groove is provided on the surface of the guide seat 22. The front base block 8 is installed in the slide groove and can move along the length direction of the slide groove. The guide seat 22 is provided to control the moving track of the front base block 8.

[0031] The lower mold plate 2 is fixedly provided with a limit block 23, which is wrapped around the outer periphery of the first pressing block 21, and the first pressing block 21 can move up and down along the inner side of the limit block 23. The first pressing block 21 is restricted from the side, and the first slider 4 and the second slider 5 are placed to move laterally due to the force, thereby offsetting the lateral force.

[0032] The upper template 1 is provided with a second pressing block 24, and the third slider 6 is installed on the lower template through the first rear base block 25. The first rear base block 25 is located on the front side of the second pressing block 24. The top of the first rear base block 25 close to the second pressing block 24 is an inclined surface, and the bottom of the second pressing block 24 close to the first rear base block 25 is an inclined surface. The second pressing block 24 acts on the first rear base block 25 to push the third slider 6 to move. The lower template 2 is fixedly provided with a limiting seat 27, which is wrapped around the outer periphery of the second pressing block 24. The second pressing block 24 can move up and down along the inner side of the limiting block 23 seat. Similarly, the structural setting of the second pressing block 24 and the first rear base block 25 enables the third slider 6 to move in a predetermined direction. The limiting seat 27 limits the second pressing block 24 from the side to offset the lateral force.

[0033] The upper template 1 is provided with a third pressing block 28, and the fourth slider 7 is installed on the lower template through the second rear base block 26. The second rear base block 26 is located on the front side of the third pressing block 28. The top of the second rear base block 26 close to the third pressing block 28 is an inclined surface, and the bottom of the third pressing block 28 close to the second rear base block 26 is an inclined surface. The third pressing block 28 acts on the second rear base block 26 to push the fourth slider 7 to move. The lower template 2 is fixedly provided with a limiting seat 27, which is wrapped around the outer periphery of the third pressing block 28. The third pressing block 28 can move up and down along the inner side of the limiting block 23 seat. Similarly, the structural setting of the third pressing block 28 and the second rear base block 26 enables the fourth slider 7 to move in a predetermined direction. The limiting seat 27 limits the third pressing block 28 from the side to offset the lateral force.

[0034] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] The present invention is described in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the present invention and its core ideas. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. The punching die for automobile chassis parts includes an upper die plate and a lower die plate, which is characterized by The lower template is provided with a floating mounting seat for mounting the connecting rod to be processed, and the upper template is correspondingly provided with two punches. The outer periphery of the floating mounting seat is provided with a first slider, a second slider, a third slider and a fourth slider. The first slider and the second slider can be respectively floated on the two front base blocks through elastic members. The upper template is pressed downward to drive the first slider, the second slider and the floating mounting seat to move downward. The upper template is pressed downward to drive the first slider and the third slider to move to the bottom and extend into the left opening of the connecting rod. The upper template is pressed downward to drive the second slider and the fourth slider to move and extend into the right opening of the connecting rod. The ends of the first slider, the second slider, the third slider and the fourth slider are all provided with mutually matching bite textures and semicircular grooves. The end of the first slider and the end of the third slider are spliced ​​to form a closed structure adapted to the inner wall of the connecting rod end. The end of the second slider and the end of the fourth slider are spliced ​​to form a closed structure adapted to the inner wall of the connecting rod end.

2. The punching die for automobile chassis parts according to claim 1, characterized in that The first slider and the second slider are located at the front side of the floating mounting seat, the third slider and the fourth slider are located at the rear side of the floating mounting seat, the first slider and the third slider move on the same straight line, and the second slider and the fourth slider move on the same straight line.

3. The punching die for automobile chassis parts according to claim 2, characterized in that The first slider and the third slider lock the opening at the left end of the connecting rod in the front and rear directions of the connecting rod, and the third slider and the fourth slider lock the opening at the right end of the connecting rod in the front and rear directions of the connecting rod.

4. The punching die for automobile chassis parts according to claim 1, characterized in that The upper template is provided with a first pressing block, and the two front base blocks are respectively located on the two sides of the first slider. The top of the front base block close to the first pressing block is an inclined surface, and the bottom of the first pressing block close to the two front base blocks are inclined surfaces. The first pressing block acts on the two front base blocks to push the first slider and the second slider to move.

5. The punching die for automobile chassis parts according to claim 1, characterized in that The front base block is provided with a groove for installing the first slider or the second slider. The first slider or the second slider can move up and down in the groove. The elastic member acts on the first slider or the second slider so that the first slider or the second slider is located at the top of the groove.

6. The punching die for automobile chassis parts according to claim 1, characterized in that A guide seat is arranged on the lower template, a slide groove is provided on the surface of the guide seat, and the front base block is installed in the slide groove and can move along the length direction of the slide groove.

7. The punching die for automobile chassis parts according to claim 4, characterized in that The lower template is fixedly provided with a limiting block, the limiting block is wrapped around the outer circumference of the first pressing block, and the first pressing block can move up and down along the inner side surface of the limiting block.

8. The punching die for automobile chassis parts according to claim 1, characterized in that The ends of the first slider, the second slider, the third slider and the fourth slider are all provided with mutually matching bite textures. The end of the first slider and the end of the third slider can be spliced ​​to form a closed structure adapted to the inner wall of the connecting rod end. The end of the second slider and the end of the fourth slider can be spliced ​​to form a closed structure adapted to the inner wall of the connecting rod end.

9. The punching die for automobile chassis parts according to claim 1, characterized in that The upper template is provided with a second pressure block, and the third slider is installed on the lower template through the first rear base block. The first rear base block is located on the front side of the second pressure block, the top of the first rear base block close to the second pressure block is an inclined surface, and the bottom of the second pressure block close to the first rear base block is an inclined surface. The second pressure block acts on the first rear base block to push the third slider to move, and the lower template is fixedly provided with a limit seat, which is wrapped around the outer periphery of the second pressure block, and the second pressure block can move up and down along the inner side of the limit block seat.

10. The punching die for automobile chassis parts according to claim 1, characterized in that The upper template is provided with a third pressure block, and the fourth sliding block is installed on the lower template through the second rear base block. The second rear base block is located on the front side of the third pressure block, the top of the second rear base block close to the third pressure block is an inclined surface, and the bottom of the third pressure block close to the second rear base block is an inclined surface. The third pressure block acts on the second rear base block to push the fourth sliding block to move, and the lower template is fixedly provided with a limit seat, the limit seat is wrapped around the outer periphery of the third pressure block, and the third pressure block can move up and down along the inner side of the limit block seat.

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