A continuous stamping die for producing a wave-shaped dog

Abstract

This utility model relates to a continuous stamping die for producing wave-shaped chucks, belonging to the field of stamping die technology. It solves the problems of existing dies requiring numerous molds, occupying a large area, having dimensional errors, and reducing production quality. The lower die plate includes a trimming die, a pre-punching die, a bending die I, a bending die II, a punching die, a stepping die, a wave-shaped punching die, and a blanking die. A wave-shaped punching component is provided on the upper die plate at a position corresponding to the wave-shaped punching die. The wave-shaped punching component includes a punch base and multiple punch blocks. A punch pad is detachably mounted on the bottom end face of each punch block. The wave-shaped punching die includes a forming base and a positioning boss mounted on the upper end face of the forming base. The positioning boss is disc-shaped. The forming base has a groove that mates with the punch pad. This design reduces the number of processes, reduces the number of equipment and dies required, improves production efficiency, increases output per shift, provides more stable dimensions, and reduces deformation.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, and in particular to a continuous stamping die for producing wave-shaped chuck claws. Background Technology

[0002] refer to Figure 1 The existing process for processing this type of wave-shaped chuck is usually carried out by step-by-step stamping, with single-die production: blanking - hook bending - bending - wave-forming. This requires four sets of dies and four machines, which occupies a lot of equipment and molds, and the cycle time is slow. Moreover, during the processing, when stamping wave-shaped chucks from different batches of material strips or material strips of different materials, the size of the wave ring in the stamped wave-shaped chuck will have errors, which reduces the production quality. Utility Model Content

[0003] The purpose of this invention is to provide a continuous stamping die for producing wave-shaped chucks, which solves the problems of existing stamping processes for wave-shaped chucks requiring numerous dies, occupying a large area, and producing wave-shaped chucks with dimensional errors, thus reducing production quality.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] This utility model provides a continuous stamping die for producing wave-shaped chucks, including an upper die assembly and a lower die assembly that cooperates with the upper die assembly. The upper die assembly includes an upper template, and the lower die assembly includes a lower template. The lower template includes a trimming module, a pre-punching module, a bending module I, a bending module II, a punching module, a step-through module, a wave-shaped punching module, and a blanking module arranged sequentially along the feeding direction. A wave-shaped punching component is provided on the upper template at a position corresponding to the wave-shaped punching module. The wave-shaped punching component includes a punch base and a plurality of punch blocks disposed on the punch base and evenly distributed circumferentially. A punch pad is detachably provided on the bottom end face of each punch block. The wave-shaped punching module includes a forming base and a positioning boss disposed on the upper end face of the forming base. The positioning boss is disc-shaped. A groove is provided on the forming base at a position corresponding to the punch block to cooperate with the punch pad. The shape and size of the groove are adapted to the shape and size of the punch pad.

[0006] Furthermore, a material guide I is provided on one side of the feeding end of the cutting module. The material guide I includes a guide base and limiting plates disposed on both sides of the upper surface of the guide base in the width direction. The two limiting plates and the guide base cooperate to form a guiding and limiting channel for guiding and limiting the material conveying.

[0007] Furthermore, the upper surfaces of the trimming module, the pre-punching module, the bending module I, the bending module II, the punching module, the idle step module, the wave punching module, and the blanking module are all provided with guide grooves on both sides along the feeding direction. A strip guide II is longitudinally slidably disposed in the guide groove. The strip guide II includes a guide post and a reset spring disposed at the bottom end of the guide post. On the opposite sides of the guide post on both sides of the feeding direction, there are snap-fit ​​limiting grooves for snapping the strip.

[0008] Furthermore, the punching module, the stepping module, the wave punching module, and the blanking module are all provided with a limiting part for placing the connecting material head. The limiting part is provided with a buffer groove, and the buffer part on the connecting material head is embedded in the buffer groove.

[0009] Furthermore, a position positioning detector for detecting the position of the gripper is provided in the upper mold assembly at the position corresponding to the step module.

[0010] Furthermore, there are two trimming modules, each including a trimming base on the lower template and a trimming punch on the upper template that cooperates with the trimming base.

[0011] Furthermore, the bending module I is used to punch and bend a semi-circular hook at the end of the claw, and the bending includes a pre-punching bending module and a forming bending module.

[0012] Furthermore, the pre-bending module includes a pre-bending base and a pre-bending pad insert disposed on the pre-bending base. A pre-bending punch that cooperates with the pre-bending pad insert is disposed on the upper template at a position corresponding to the pre-bending module.

[0013] Furthermore, the forming and bending module includes a forming and bending base and a forming and bending pad insert disposed on the forming and bending base. A forming and bending punch that cooperates with the forming and bending pad insert is disposed on the upper template at a position corresponding to the forming and bending module.

[0014] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0015] This utility model provides a continuous stamping die for producing wave-shaped grippers, including an upper die assembly and a lower die assembly that cooperates with the upper die assembly. The upper die assembly includes an upper template, and the lower die assembly includes a lower template. The lower template includes a trimming module, a pre-punching module, a bending module I, a bending module II, a punching module, a step-through module, a wave-shaped punching module, and a blanking module arranged sequentially along the feeding direction. A wave-shaped punching component is provided on the upper template at a position corresponding to the wave-shaped punching module. The wave-shaped punching component includes a punch base and a plurality of punch blocks arranged on the punch base and evenly distributed circumferentially. A punch pad is detachably provided on the bottom end face of each punch block. The wave-shaped punching module includes a forming base and a positioning boss arranged on the upper end face of the forming base. The positioning boss is disc-shaped. A groove that cooperates with the punch pad is provided on the forming base at a position corresponding to the punch block. The shape and size of the groove are adapted to the shape and size of the punch pad. The continuous stamping die used in the production of wave-shaped chucks has a compact structure, reducing the floor space required. It enables continuous processing of wave-shaped chucks, improving processing efficiency. In addition, different types of punch shims can be adjusted according to the actual processing conditions. During the wave-forming process, the dimensions of the wave-shaped chucks can be finely adjusted to meet the actual dimensional requirements of the wave-shaped chucks, ensuring more stable dimensions of the processed wave-shaped chucks and improving the forming quality of the wave-shaped chucks. Attached Figure Description

[0016] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0017] Figure 1 This is a schematic diagram of the waveform claw in a preferred embodiment of the present invention;

[0018] Figure 2 This is a top view of the lower mold assembly in a preferred embodiment of the present invention;

[0019] Figure 3 This is an enlarged view of the edge-cutting component in a preferred embodiment of the present invention;

[0020] Figure 4 This is a cross-sectional view of the bending module I in a preferred embodiment of the present invention;

[0021] Figure 5 This is a cross-sectional view of the bending module II in a preferred embodiment of this utility model;

[0022] Figure 6 This is an enlarged view of the punching module and the wave-shaped punching module in the preferred embodiment of this utility model;

[0023] Figure 7 This is a schematic diagram of the structure of the punched wave-shaped chuck blank in a preferred embodiment of the present invention;

[0024] Figure 8 This is a schematic diagram of the structure of the positioning detector in a preferred embodiment of the present invention;

[0025] Figure 9 This is a schematic diagram of the structure of the wave-shaped component in a preferred embodiment of the present invention;

[0026] Figure 10 This is a cross-sectional view of the material guide II in a preferred embodiment of this utility model.

[0027] The reference numerals in the attached figures are explained as follows:

[0028] 1. Wave ring; 2. Bending claw; 3. Hook;

[0029] 4. Lower mold assembly;

[0030] 41. Edge trimming module; 411. Edge trimming base;

[0031] 42. Pre-punching module;

[0032] 43. Bending module I; 431. Pre-bending module; 4311. Pre-bending base; 4312. Pre-bending pad insert; 4313. Pre-bending punch;

[0033] 432. Forming and bending module; 4321. Forming and bending base; 4322. Forming and bending pad insert; 4323. Forming and bending punch;

[0034] 44. Bending Module II;

[0035] 45. Punching module;

[0036] 46. ​​Idle step module;

[0037] 47. Waveform module; 471. Forming base; 472. Positioning boss; 473. Groove;

[0038] 48. Blanking module;

[0039] 5. Positioning detector;

[0040] 6. Stamped wave-shaped parts; 61. Punch base; 62. Punch block; 63. Punch pad;

[0041] 7. Limiting part;

[0042] 8. Buffer groove;

[0043] 9. Material guide component I; 91. Guide base; 92. Limiting plate;

[0044] 10. Material strip guide component II; 101. Guide column; 102. Return spring; 103. Snap-fit ​​limiting groove;

[0045] 11. Connect the material head;

[0046] 12. Guide groove;

[0047] 40. Apply the template. Detailed Implementation

[0048] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0049] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0050] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0051] refer to Figure 1 This utility model provides a continuous stamping die for producing wave-shaped claws. The wave-shaped claws include a wave ring 1 and a plurality of bent claws 2 evenly distributed along the circumference of the wave ring 1. One end of the bent claw 2 away from the wave ring 1 is provided with a semi-circular hook 3, and the other end of the bent claw 2 is connected to the wave ring 1.

[0052] refer to Figure 2 The continuous stamping die includes an upper die assembly (not marked in the figure) and a lower die assembly 4 that cooperates with the upper die assembly. The upper die assembly includes an upper template 40, and the lower die assembly 4 includes a lower template. The lower template includes a trimming module 41, a pre-punching module 42, a bending module I 43, a bending module II 44, a punching module 45, a step-by-step module 46, a wave-shaped punching module 47, and a blanking module 48 arranged sequentially along the feeding direction.

[0053] refer to Figure 2 and Figure 3 There are two trimming modules 41. Each trimming module 41 includes a trimming base 411 on the lower template and a trimming punch (not shown in the figure) on the upper template 40 that cooperates with the trimming base 411. The excess part on the strip is removed through two trimming processes, forming a corrugated claw blank. This corrugated claw blank includes a disc, multiple claw blanks arranged circumferentially on the radial outer edge of the disc, and a connecting head 11 connecting the disc and the strip. The claw blanks extend radially outward along the disc, and the connecting head 11 is arranged in a cross shape.

[0054] refer to Figure 2 , Figure 4 and Figure 5 The bending module I 43 is used to punch and bend the end of the bending claw 2 to form a semi-circular hook 3. The bending module I 43 includes a pre-bending module 431 and a forming bending module 432. The pre-bending module 431 includes a pre-bending base 4311 and a pre-bending pad insert 4312 disposed on the pre-bending base 4311. A pre-bending punch 4313 is disposed on the upper template 40 at a position corresponding to the pre-bending module 431 to cooperate with the pre-bending pad insert 4312. The forming bending module 432 includes a forming bending base 4321 and a forming bending pad insert 4322 disposed on the forming bending base 4321. A forming bending punch 4323 is disposed on the upper template 40 at a position corresponding to the forming bending module 432 to cooperate with the forming bending pad insert 4322. The semi-circular hook 3 on the jaw is formed by two stamping and bending processes. During the stamping and bending process, the semi-circular hook 3 is not easily deformed or broken, which can improve the stamping accuracy and stamping quality.

[0055] refer to Figures 4-6 The bending module II 44 is used to press and bend the jaw blank at the connection position with the circular disk, thereby forming the bent jaw 2. After the bent jaw 2 is formed by pressing and bending, the punching module 45 punches holes in the circular disk, thereby punching and cutting off the middle part of the circular disk to form a ring, and punching holes at the cross connection position of the connecting head 11 (see reference). Figure 8 ).

[0056] refer to Figure 2 , Figure 6 and Figure 8Afterwards, the corrugated claw blank of this structure enters the idle step module 46. In the upper die assembly, a position positioning detector 5 is set at the position corresponding to the idle step module 46 to detect the position of the claw. Several positioning through holes that cooperate with the positioning detector 5 are evenly arranged on both sides of the width direction of the strip and along the length of the strip. When the upper die assembly and the lower die assembly 4 are closed, if the detection end of the positioning detector 5 is just inserted into the positioning through hole, it is determined that the corrugated claw blank is accurately positioned and can proceed to the next stamping and bending process into a corrugated shape; if the detection positioning is not accurate, the machine is stopped for inspection.

[0057] refer to Figure 2 , Figure 6 and Figure 9 A wave-shaped component 6 is provided on the upper template 40 at a position corresponding to the wave-shaped module 47. The wave-shaped component 6 includes a punch base 61 and multiple punch blocks 62 evenly distributed circumferentially on the punch base 61. A punch pad 63 is detachably provided on the bottom end face of each punch block 62. The wave-shaped module 47 includes a forming base 471 and a positioning boss 472 provided on the upper end face of the forming base 471. The positioning boss 472 is disc-shaped. Grooves 473 that mate with the punch pads 63 are provided on the forming base 471 at positions corresponding to the punch blocks 62. The shape and size of the grooves 473 are adapted to the shape and size of the punch pads 63. When the wave-shaped claw blank enters the wave-shaped module 47, the punch holes in the wave-shaped claw are fitted onto the positioning boss 472. The positioning boss 472 plays a positioning role, making it difficult for the wave-shaped claw to move, deviate, or deform during the wave-shaped process. When the material of the corrugated jaws is changed or when different batches of strip are processed into corrugated jaws, there will be dimensional errors before the corrugated shape is punched. At this time, different models of punch pads 63 can be adjusted according to the actual processing conditions. During the corrugation process, the size of the corrugated jaws can be finely adjusted to meet the actual size requirements of the corrugated jaws. After the corrugation process is completed, the excess material head is cut off by the blanking module 48, and the formed corrugated jaws are discharged through the blanking hole in the blanking module 48.

[0058] refer to Figure 2 , Figure 6 and Figure 7Throughout the entire stamping, cutting, and bending process, each of the punching module 45, the idle step module 46, the corrugated wire punching module 47, and the blanking module 48 is equipped with a limiting part 7 for placing the connecting material head 11. A buffer groove 8 is provided in the limiting part 7 at a position corresponding to the cross-shaped material head. The through hole of the connecting material head is just stuck in the buffer groove 8. This can play a positioning role in the punching, corrugating, and blanking processes of the corrugated chuck blank. When a radial force is applied to the corrugated chuck during punching, corrugating, or material head cutting and blanking, the connecting material head with the through hole deforms and absorbs this force, ensuring that the corrugated chuck is not easily deformed. The size of the buffer groove 8 is larger than the size of the cross connection position of the connecting material head. This buffer groove 8 can accommodate the deformation of the connecting material head.

[0059] refer to Figure 2 and Figure 3 A strip guide I9 is ​​provided on one side of the feed end of the trimming module 41. The strip guide I9 includes a guide base 91 and limiting plates 92 disposed on both sides of the upper surface of the guide base 91 in the width direction. The two limiting plates 92 and the base cooperate to form a guide and limiting channel for guiding and limiting the conveying of the strip. The strip guide I9 can guide the strip into the continuous stamping die, making it less prone to deflection during movement and improving processing accuracy.

[0060] refer to Figure 3 and Figure 10 The upper surfaces of the trimming module 41, the pre-punching module 42, the bending module I 43, the bending module II 44, the punching module 45, the stepping module 46, the wave punching module 47, and the blanking module 48 are all provided with guide grooves 12 on both sides along the feeding direction. A strip guide II 10 is longitudinally slidably arranged in the guide groove 12. The strip guide II 10 includes a guide post 101 and a reset spring 102 arranged at the bottom of the guide post 101. On the opposite sides of the guide post 101 on both sides of the feeding direction, there are snap-fit ​​limiting grooves 103 for snapping the strip. When the strip enters each module, the edge of the strip is engaged in the corresponding locking and limiting groove 103. The locking and limiting groove 103 also guides the strip, ensuring that it does not deviate during movement and improving positioning accuracy. In addition, when the mold is closed, the guide column 101 moves downward to place the strip on each module. After each module completes the stamping process, the return spring 102 drives the guide column 101 and the strip engaged on the guide column 101 to move upward and disengage from the lower mold assembly 4, ensuring that the strip can be transported normally and is not easily stuck in each module.

[0061] In summary, this structure of continuous stamping die for producing wave-shaped chucks is compact, reducing floor space and enabling continuous processing of wave-shaped chucks, thus improving processing efficiency. Furthermore, different types of punch pads 63 can be adjusted according to actual processing conditions, allowing for fine-tuning of the wave-shaped chuck dimensions during the stamping process. This meets the actual dimensional requirements of the wave-shaped chucks, ensuring more stable dimensions and improving the forming quality of the produced wave-shaped chucks.

[0062] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the protection scope of this utility model.

Claims

1. A continuous stamping die for producing wave-shaped chuck claws, comprising an upper die assembly and a lower die assembly (4) cooperating with the upper die assembly, the upper die assembly including an upper template (40), and the lower die assembly (4) including a lower template, characterized in that, The lower template includes a trimming module (41), a pre-punching module (42), a bending module I (43), a bending module II (44), a punching module (45), a step-through module (46), a wave-shaped punching module (47), and a blanking module (48) arranged sequentially along the feeding direction. The upper template (40) has wave-shaped components (6) positioned corresponding to the wave-shaped punching module (47). Each wave-shaped component (6) includes a punch base (61) and multiple punch blocks (62) evenly distributed circumferentially on the punch base (61). The bottom end face of the punch block (62) can be detachably provided with a punch pad (63). The punch wave module (47) includes a forming base (471) and a positioning boss (472) provided on the upper end face of the forming base (471). The positioning boss (472) is disc-shaped. The forming base (471) is provided with a groove (473) that cooperates with the punch pad (63) at the position corresponding to the punch block (62). The shape and size of the groove (473) are adapted to the shape and size of the punch pad (63).

2. The continuous stamping die for producing wave-shaped chuck jaws according to claim 1, characterized in that, The feed end of the cutting module (41) is provided with a material belt guide I (9). The material belt guide I (9) includes a guide base (91) and limiting plates (92) on both sides of the upper surface of the guide base (91) in the width direction. The two limiting plates (92) and the guide base (91) cooperate to form a guiding and limiting channel for guiding and limiting the material belt.

3. The continuous stamping die for producing wave-shaped chuck jaws according to claim 1 or 2, characterized in that, The upper surfaces of the trimming module (41), the pre-punching module (42), the bending module I (43), the bending module II (44), the punching module (45), the step-out module (46), the wave-shaped module (47), and the blanking module (48) are all provided with guide grooves (12) on both sides along the feeding direction. A strip guide II (10) is longitudinally slidably arranged in the guide groove (12). The strip guide II (10) includes a guide post (101) and a reset spring (102) arranged at the bottom of the guide post (101). A snap-fit ​​limiting groove (103) for snapping the strip is arranged on the opposite sides of the guide post (101) on both sides of the feeding direction.

4. The continuous stamping die for producing wave-shaped chuck jaws according to claim 3, characterized in that, The punching module (45), the stepping module (46), the punching wave module (47) and the blanking module (48) are all provided with a limiting part (7) for placing the connecting head (11). The limiting part (7) is provided with a buffer groove (8), and the buffer part on the connecting head (11) is embedded in the buffer groove (8).

5. The continuous stamping die for producing wave-shaped chuck jaws according to claim 4, characterized in that, The upper mold assembly is provided with a position positioning detector (5) for detecting the position of the claw at the position corresponding to the step module (46).

6. The continuous stamping die for producing wave-shaped chuck jaws according to claim 1 or 4, characterized in that, There are two trimming modules (41). Each trimming module (41) includes a trimming base (411) on the lower template and a trimming punch on the upper template (40) that cooperates with the trimming base (411).

7. The continuous stamping die for producing wave-shaped chuck jaws according to claim 6, characterized in that, The bending module I (43) is used to punch and bend a semi-circular hook at the end of the claw. The bending includes a pre-bending module (431) and a forming bending module (432).

8. The continuous stamping die for producing wave-shaped chuck jaws according to claim 7, characterized in that, The pre-bending module (431) includes a pre-bending base (4311) and a pre-bending pad insert (4312) disposed on the pre-bending base (4311). A pre-bending punch (4313) is disposed on the upper template (40) at a position corresponding to the pre-bending module (431) to cooperate with the pre-bending pad insert (4312).

9. The continuous stamping die for producing wave-shaped chuck jaws according to claim 7 or 8, characterized in that, The forming and bending module (432) includes a forming and bending base (4321) and a forming and bending pad insert (4322) disposed on the forming and bending base (4321). A forming and bending punch (4323) is disposed on the upper template (40) at a position corresponding to the forming and bending module (432) and cooperates with the forming and bending pad insert (4322).

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