Stamping die and stamping equipment

Abstract

The utility model relates to a stamping die and stamping equipment, the stamping die comprises a lower die assembly and an upper die assembly, the lower die assembly comprises a lower base, a forming die, a floating plate, a lower stretching punch and a first wedge block; the upper die assembly comprises an upper base, a material pressing plate and an upper stretching punch. According to the stamping die, the upper stretching punch and the lower stretching punch which are used for clamping and stretching a plate for forming are arranged to be of a structure capable of transversely sliding, so that when the upper stretching punch and the lower stretching punch carry out stretching action, stretching forming can be gradually carried out from the near end to the far end of the forming inclined surface of the forming die; therefore, the material pressing area is increased, enough material pressing force is provided, the stretching effect of a product is improved, wrinkling of the stretching position is avoided, and the final quality of the product is ensured.

Description

Technical Field

[0001] This utility model relates to the field of stamping equipment technology, and in particular to a stamping die and stamping equipment. Background Technology

[0002] like Figure 10 The product shown includes a sidewall structure with bevels obtained by stretching.

[0003] The existing stretching die structure for processing this product has a stretching punch that can only move up and down. Therefore, it uses the far end of the inclined plane as a reference, resulting in a small contact area between the stretching punch and the material plate when pressing the material, and insufficient pressing force. This leads to poor final stretching effect and easy wrinkling of the product. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is to overcome the fact that in the prior art, the stretching punch of the stretching die structure used for stretching products can only move up and down. As a result, it takes the far end of the inclined plane as the reference, which leads to a small contact area between the stretching punch and the material plate when pressing the material, and insufficient pressing force, resulting in poor final stretching effect and easy wrinkling of the product.

[0005] To solve the above-mentioned technical problems, this utility model provides a stamping die, comprising,

[0006] The lower die assembly includes a lower base, a forming die, a floating plate, a lower drawing punch, and a first wedge block. The forming die is disposed on the top of the lower base. Two sets of floating plates are provided, which are floatingly connected to the top of the lower base and symmetrically disposed on both sides of the forming die. Two sets of lower drawing punches are symmetrically disposed and slidably connected to the two sets of floating plates respectively. The lower base is provided with two first wedge blocks located at the same end of the two sets of lower drawing punches. The first wedge blocks are provided with a first inclined surface and a second inclined surface on the side near the lower drawing punch, and the lower drawing punch is provided with a third inclined surface parallel to the first inclined surface on the end near the first wedge block.

[0007] The upper die assembly includes an upper base, a pressure plate, and an upper drawing punch. The upper base is located directly above the lower base. The pressure plate is floatingly connected to the bottom of the upper base and corresponds to the position of the forming die. Two sets of upper drawing punches are provided. The two sets of upper drawing punches are slidably connected to the bottom of the upper base and symmetrically arranged on both sides of the pressure plate. The ends of the two sets of upper drawing punches corresponding to the first wedge block are connected to a second wedge block. The second wedge block is provided with a fourth inclined surface parallel to the second inclined surface.

[0008] In one embodiment of this utility model, a first reset assembly is included. The first reset assembly includes two cylinders, which are connected to the lower base and located at the ends of the two lower stretching punches away from the first wedge block, respectively. The output end of each cylinder is rotatably connected to a guide wheel. A groove is provided on the lower stretching punch, and the guide wheel is movably connected in the groove.

[0009] In one embodiment of the present invention, a second reset component is included. The second reset component includes a stop block and an elastic element. Two stops block are provided. The two stops block are connected to the bottom of the upper base and are respectively located at the ends of the two upper stretching punches away from the second wedge block. A plurality of elastic elements are respectively provided between the two stops block and the two upper stretching punches.

[0010] In one embodiment of the present invention, a material carrier rod is included, which is floatingly connected to the lower base and located above the molding die, and the top of the molding die is provided with a through groove that matches the shape of the material carrier rod.

[0011] In one embodiment of the present invention, the bottom of the pressure plate is provided with at least two positioning members arranged at intervals along its length, and the material carrier is provided with positioning holes coaxial with each of the positioning members.

[0012] In one embodiment of this utility model, the floating plate and the pressure plate are respectively floatingly connected to the lower base and the upper base by multiple nitrogen springs.

[0013] In one embodiment of this utility model, a plurality of guide holes are symmetrically arranged on the lower base, and a guide sleeve is coaxially arranged in each guide hole. A plurality of guide shafts are arranged on the upper base, each coaxial with each guide sleeve.

[0014] In one embodiment of this utility model, the two lower drawing punches have a first forming surface mirrored on their sides that are close to each other, and the two upper drawing punches have a second forming surface mirrored on their sides that are close to each other.

[0015] In one embodiment of the present invention, the first inclined surface and the second inclined surface are staggered in the sliding direction of the lower stretching punch or the upper stretching punch, and the first inclined surface is located below the second inclined surface.

[0016] A stamping apparatus comprising a stamping die as described in any of the preceding claims.

[0017] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0018] The present invention discloses a stamping die and stamping equipment, wherein the upper and lower stretching punches used for clamping and stretching sheet metal are configured as sliding structures that can slide laterally. This allows the upper and lower stretching punches to gradually stretch and form from the near end to the far end of the forming slope of the forming die during the stretching action. This increases the pressure area and provides sufficient pressure force, thereby improving the stretching effect of the product and preventing wrinkling at the stretching position, ensuring the final quality of the product. Attached Figure Description

[0019] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0020] Figure 1 This is a perspective view (open state) of a stamping die according to a preferred embodiment of the present invention.

[0021] Figure 2 This is a schematic diagram of the upper die assembly of a stamping die according to a preferred embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the lower die assembly of a stamping die according to a preferred embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the first wedge block of the stamping die according to a preferred embodiment of the present invention;

[0024] Figure 5 This is a perspective view (closed state) of a stamping die according to a preferred embodiment of the present invention.

[0025] Figure 6 This is a schematic diagram of the forming die of a preferred embodiment of the stamping die of this utility model;

[0026] Figure 7 This is a schematic diagram of the structure of the lower drawing punch of the stamping die according to a preferred embodiment of the present invention;

[0027] Figure 8 This is a schematic diagram of the upper drawing punch of the stamping die according to a preferred embodiment of the present invention;

[0028] Figure 9 This is a schematic diagram of the structure of the first reset component of the stamping die according to a preferred embodiment of the present invention;

[0029] Figure 10 It is a 3D model of the product.

[0030] Explanation of reference numerals in the accompanying drawings: 1. Lower die assembly; 11. Lower base; 12. Forming die; 13. Floating plate; 14. Lower drawing punch; 141. Third inclined surface; 142. Groove; 15. First wedge block; 151. First inclined surface; 152. Second inclined surface; 2. Upper die assembly; 21. Upper base; 22. Pressure plate; 221. Positioning element; 23. Upper drawing punch; 24. Second wedge block; 241. Fourth inclined surface; 3. First reset assembly; 31. Cylinder; 32. Guide wheel; 4. Second reset assembly; 41. Stop block; 42. Elastic element; 5. Loading rod. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0032] Example 1: Refer to Figures 1-9 As shown, this utility model provides a stamping die, comprising:

[0033] The lower die assembly 1 includes a lower base 11, a forming die 12, a floating plate 13, a lower drawing punch 14, and a first wedge block 15. The forming die 12 is disposed on the top of the lower base 11. Two sets of floating plates 13 are provided, which are floatingly connected to the top of the lower base 11 and symmetrically disposed on both sides of the forming die 12. Two sets of lower drawing punches 14 are symmetrically disposed and slidably connected to the two sets of floating plates 13 respectively. Two first wedge blocks 15 are provided on the lower base 11, which are located at the same end of the two sets of lower drawing punches 14 respectively. The first wedge block 15 is provided with a first inclined surface 151 and a second inclined surface 152 on the side of the first wedge block 15 near the lower drawing punch 14 respectively. The lower drawing punch 14 is provided with a third inclined surface 141 parallel to the first inclined surface 151 on the end of the lower wedge block 15 near the first wedge block 15.

[0034] The upper mold assembly 2 includes an upper base 21, a pressure plate 22, and an upper stretching punch 23. The upper base 21 is located directly above the lower base 11. The pressure plate 22 is floatingly connected to the bottom of the upper base 21 and corresponds to the position of the forming mold 12. Two sets of upper stretching punches 23 are provided. The two sets of upper stretching punches 23 are slidably connected to the bottom of the upper base 21 and symmetrically arranged on both sides of the pressure plate 22. The ends of the two sets of upper stretching punches 23 corresponding to the first wedge block 15 are each connected to a second wedge block 24. The second wedge block 24 is provided with a fourth inclined surface 241 parallel to the second inclined surface 152.

[0035] Specifically, the upper base 21 is driven by an external drive mechanism to move vertically. When the drive mechanism drives the upper base 21 to move towards the lower base 11, the two upper stretching punches 23 gradually approach the lower stretching punch 14 corresponding to their positions below, while the pressure plate 22 gradually approaches the forming mold 12. After the pressure plate 22 contacts the forming mold 12, the pressure plate 22 is forced to move upward. After the upper stretching punches 23 contact the lower stretching punches 14, the upper stretching punches 23 push the lower stretching punches 14 and the floating plate 13 downward as a whole. During the process of the upper stretching punches 23 gradually moving downward, the fourth inclined surface 241 of the second wedge block 24 connected to the upper stretching punches 23 gradually contacts the second inclined surface 152 and... Under the guidance of the inclined plane, the two upper drawing punches 23 slide horizontally in sync. At the same time, as the lower drawing punch 14 moves downward, the third inclined plane 141 of the lower drawing punch 14 gradually contacts the first inclined plane 151 and slides against each other. Under the guidance of the inclined plane, the two lower drawing punches 14 and the upper drawing punches 23 slide horizontally in sync. In this way, when the upper drawing punches 23 and the lower drawing punches 14 hold the material plate for drawing, they can gradually draw and form from the near end to the far end of the forming inclined plane of the forming die 12, thereby increasing the pressure area and providing sufficient pressure force. Ultimately, this improves the drawing effect of the product and avoids wrinkling at the drawing position, ensuring the final quality of the product.

[0036] Reference Figure 2 , Figure 4 and Figure 9 As shown, further, it includes a first reset assembly 3, which includes two cylinders 31. The two cylinders 31 are connected to the lower base 11 and are respectively located at the ends of the two lower drawing punches 14 away from the first wedge block 15. The output end of each cylinder 31 is rotatably connected to a guide wheel 32. The lower drawing punch 14 has a groove 142, and the guide wheel 32 is movably connected in the groove 142. Specifically, the lower drawing punch 14 has a groove 142 extending in the vertical direction, and the guide wheel 32 can slide along the groove 142. Specifically, when the upper mold assembly 2 moves to the position for reset, the floating plate 13 and the lower drawing punch 14 rise under the elastic force of the nitrogen spring, and during the rising process of the lower drawing punch 14, the output shaft of the cylinder 31 extends to push the lower drawing punch 14 to reset laterally.

[0037] Reference Figure 3As shown, further, a second reset assembly 4 is included. The second reset assembly 4 includes a stop block 41 and elastic elements 42. Two stop blocks 41 are provided, which are connected to the bottom of the upper base 21 and are respectively located at the ends of the two upper stretching punches 23 away from the second wedge block 24. Multiple elastic elements 42 are respectively provided between the two stop blocks 41 and the two upper stretching punches 23. Specifically, when the upper stretching punches 23 are reset as the upper base 21 rises, the upper stretching punches 23 are reset laterally under the elastic force of the compressed elastic elements 42 (the elastic elements 42 are gradually compressed when the upper stretching punches 23 move laterally during the downward pressing process).

[0038] Furthermore, a material carrier 5 is included, which is floatingly connected to the lower base 11 and located above the forming mold 12. The top of the forming mold 12 has a through groove that matches the shape of the material carrier 5. Specifically, during forming, the material plate for product forming is placed on the material carrier 5. When the pressure plate 22 moves downward and gradually approaches the forming mold 12, the positioning member 221 on the pressure plate 22 positions the material plate through the positioning hole on the material plate and the through hole on the material carrier 5, ensuring the accuracy of the material plate position and facilitating accurate stretching and forming of the product.

[0039] Furthermore, the bottom of the pressure plate 22 is provided with at least two positioning elements 221 arranged at intervals along its length, and the material carrying rod 5 is provided with positioning holes coaxial with each positioning element 221. Specifically, the positioning element 221 is a cylindrical structure, and its free end has a certain taper.

[0040] Furthermore, the floating plate 13 and the pressure plate 22 are respectively floatingly connected to the lower base 11 and the upper base 21 by multiple nitrogen springs.

[0041] Furthermore, the lower base 11 is symmetrically provided with several guide holes, and a guide sleeve is coaxially provided in each guide hole. The upper base 21 is provided with several guide shafts that are coaxial with each guide sleeve. During the downward movement of the upper base 21, each guide shaft will be inserted into a guide sleeve, thereby ensuring that the subsequent pressing process can be more stable and is beneficial to the final quality of the product.

[0042] Reference Figure 7 and Figure 8 As shown, further, the two lower drawing punches 14 are mirror images of each other with a first forming surface, and the two upper drawing punches 23 are mirror images of each other with a second forming surface.

[0043] Reference Figure 4 and Figure 5As shown, the first inclined surface 151 and the second inclined surface 152 are staggered in the sliding direction of the lower drawing punch 14 or the upper drawing punch 23, and the first inclined surface 151 is located below the second inclined surface 152. Specifically, the area below the first inclined surface 151 transitions to a vertical plane, and the section between the second inclined surface 152 and the first inclined surface 151 also transitions to a vertical plane.

[0044] Example 2: This utility model also discloses a stamping device, including a stamping die as described in Example 1.

[0045] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A stamping die, characterized in that: include, The lower die assembly includes a lower base, a forming die, a floating plate, a lower drawing punch, and a first wedge block. The forming die is disposed on the top of the lower base. Two sets of floating plates are provided, which are floatingly connected to the top of the lower base and symmetrically disposed on both sides of the forming die. Two sets of lower drawing punches are symmetrically disposed and slidably connected to the two sets of floating plates respectively. The lower base is provided with two first wedge blocks located at the same end of the two sets of lower drawing punches. The first wedge blocks are provided with a first inclined surface and a second inclined surface on the side near the lower drawing punch, and the lower drawing punch is provided with a third inclined surface parallel to the first inclined surface on the end near the first wedge block. The upper die assembly includes an upper base, a pressure plate, and an upper drawing punch. The upper base is located directly above the lower base. The pressure plate is floatingly connected to the bottom of the upper base and corresponds to the position of the forming die. Two sets of upper drawing punches are provided. The two sets of upper drawing punches are slidably connected to the bottom of the upper base and symmetrically arranged on both sides of the pressure plate. The ends of the two sets of upper drawing punches corresponding to the first wedge block are connected to a second wedge block. The second wedge block is provided with a fourth inclined surface parallel to the second inclined surface.

2. The stamping die according to claim 1, characterized in that: The device includes a first reset assembly, which includes two cylinders connected to the lower base and located at the ends of the two lower stretching punches away from the first wedge block. The output end of each cylinder is rotatably connected to a guide wheel. The lower stretching punch has a groove, and the guide wheel is movably connected in the groove.

3. The stamping die according to claim 1, characterized in that: The system includes a second reset assembly, which includes a stop block and an elastic element. There are two stops block, which are connected to the bottom of the upper base and located at the ends of the two upper stretching punches away from the second wedge block. Multiple elastic elements are respectively provided between the two stops block and the two upper stretching punches.

4. The stamping die according to claim 1, characterized in that: It includes a material carrier rod, which is floatingly connected to the lower base and located above the molding die, and the top of the molding die has a through groove that matches the shape of the material carrier rod.

5. The stamping die according to claim 4, characterized in that: The bottom of the pressure plate is provided with at least two positioning elements arranged at intervals along its length, and the material carrier is provided with positioning holes that are coaxial with each of the positioning elements.

6. The stamping die according to claim 1, characterized in that: The floating plate and the pressure plate are respectively floatingly connected to the lower base and the upper base by multiple nitrogen springs.

7. The stamping die according to claim 1, characterized in that: The lower base is symmetrically provided with a number of guide holes, and a guide sleeve is coaxially provided in each of the guide holes. The upper base is provided with a number of guide shafts that are coaxial with each of the guide sleeves.

8. The stamping die according to claim 1, characterized in that: The two lower drawing punches have a first forming surface mirrored on their sides that are close to each other, and the two upper drawing punches have a second forming surface mirrored on their sides that are close to each other.

9. The stamping die according to claim 1, characterized in that: The first inclined surface and the second inclined surface are staggered in the sliding direction of the lower stretching punch or the upper stretching punch, and the first inclined surface is located below the second inclined surface.

10. A stamping device, characterized in that: Including the stamping die as described in any one of claims 1-9.

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