Fool-proof progressive die for large-size stamping workpiece and automobile part forming equipment

Abstract

The utility model provides a fool-proof progressive die for a large-size stamping workpiece and automobile part forming equipment. The fool-proof progressive die for the large-size stamping workpiece comprises an upper pressing die base, a lower pressing die base, a material belt, a mounting support and at least one fool-proof assembly, the mounting support is arranged on the upper pressing die base, and a fixing groove and a first stroke groove which are communicated are formed in the mounting support; the fool-proof assembly comprises a hook part, a hanging pin and a fixed limiting seat, at least part of the fixed limiting seat is embedded in the fixed groove, a second stroke groove is formed in the fixed limiting seat, the first stroke groove, the fixed groove and the second stroke groove are communicated in sequence, and the two ends of the hanging pin are fixedly connected to the two opposite inner walls of the second stroke groove respectively; the hook component sequentially penetrates through the first stroke groove, the fixing groove and the second stroke groove, the connecting end of the hook component is arranged on the hanging pin in a swinging and sleeving mode, and the hooking-out end of the hook component is used for being connected with a to-be-hung area of the large-size stamping workpiece. According to the fool-proof progressive die for the large-size stamping workpieces, adhesion between the workpieces is prevented, and the stamping efficiency is improved.

Description

Technical Field

[0001] This disclosure relates to the technical field of molds, and in particular to a foolproof progressive die for large-size stamped workpieces and an automotive parts forming equipment. Background Technology

[0002] Currently, with the development of technology, automotive design concepts are constantly being updated. In particular, the stamping production of new energy vehicle parts emphasizes integrated stamping, and the size of the parts is getting larger and larger. Traditional technology requires that after stamping a single part, it is removed by a robot or a person.

[0003] However, for progressive die stamping production, continuous stamping operation is required and high efficiency is required. Generally, the workpiece is conveyed by a material strip. When the workpiece is stamped and leaves the material strip, due to the large size and weight of the workpiece, the workpiece may not fall into the finished product area according to the predetermined path. It is easy for the workpiece to stick to the material strip, the next workpiece, or the die body (i.e., contact between structures), which will affect the stamping efficiency of the workpiece. Utility Model Content

[0004] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a large-size stamping workpiece error-proof progressive die and automotive parts forming equipment that prevents workpieces from sticking together and improves stamping efficiency.

[0005] The purpose of this disclosure is achieved through the following technical solution:

[0006] A progressive die for preventing mistakes in stamping large-size workpieces includes an upper die holder, a lower die holder, and a strip material. The upper die holder and the lower die holder are correspondingly arranged. The strip material is movably disposed between the upper die holder and the lower die holder for conveying the large-size stamping workpiece and the raw materials required for the large-size stamping workpiece. The progressive die for preventing mistakes in stamping large-size workpieces also includes a mounting support and at least one mistake-proof component. The mounting support is disposed on the upper die holder and has a connecting fixing groove and a first stroke groove.

[0007] The foolproof component includes a hook component, a hanging pin, and a fixed limiting seat. At least a portion of the fixed limiting seat is embedded in the fixed groove. The fixed limiting seat forms a second stroke groove. The first stroke groove, the fixed groove, and the second stroke groove are sequentially connected. The two ends of the hanging pin are respectively fixedly connected to two opposite inner walls of the second stroke groove. The hook component is sequentially inserted through the first stroke groove, the fixed groove, and the second stroke groove. The connecting end of the hook component is swung and sleeved on the hanging pin. The hook-out end of the hook component is used to connect with the hanging area of ​​the large-sized stamped workpiece.

[0008] In one embodiment, the hook component includes a hook body and a hook-out bend connected together. The hook body has a swing hole, and the hanging pin passes through the swing hole. The hook-out bend is arranged in the direction of the material conveyor belt and is used to connect with the hanging area to hook out the large-sized stamped workpiece.

[0009] In one embodiment, the foolproof component further includes an elastic reset member, one end of which is connected to the hook body and the other end of which is connected to the inner wall of the first stroke groove, for automatically resetting the hook-out bend block to the hanging area when the hook body swings down.

[0010] In one embodiment, the side of the hook-out bend that contacts the large-sized stamped workpiece has a first smooth transition portion.

[0011] In one embodiment, a second smooth transition portion is formed at the connection between the side wall of the hook body and the side wall of the hook-out bend, and the second smooth transition portion is engaged with the area to be hung.

[0012] In one embodiment, the hook body and the hook-out bend are integrally formed.

[0013] In one embodiment, the foolproof component further includes a stop and limit block disposed on the side of the second stroke groove facing the hook-out bend, for stopping the hook body when the hook body swings down, so that the hook-out bend is engaged in the hanging area.

[0014] In one embodiment, the large-size stamping workpiece error-proof progressive die further includes an anti-collision damping plate, which is disposed on the stop limiting block to prevent the hook body from directly colliding with the stop limiting block when it swings down.

[0015] In one embodiment, there are two error-proof components, both of which are mounted on the mounting bracket to jointly hook out the large-sized stamped workpiece.

[0016] An automotive parts forming apparatus includes a large-size stamping workpiece error-proof progressive die as described in any of the above embodiments.

[0017] Compared with the prior art, this disclosure has at least the following advantages:

[0018] 1) The large-size stamping workpiece error-proof progressive die of this disclosure, with the cooperation of the upper and lower die holders, progressively stamps the raw material to form a large-size stamping workpiece. Since the large-size stamping workpiece is provided with a hanging area, when the large-size stamping workpiece needs to be removed from the material strip, the upper die holder moves downward, and the material strip conveying the large-size stamping workpiece has forward inertia, causing the hook end of the hook component to slide along the outer surface of the large-size stamping workpiece along a predetermined sliding trajectory under the forward inertia of the large-size stamping workpiece and gradually swing upward to a preset limit position. After passing the preset limit position, since there is no large-sized stamping workpiece to block it, the hook end of the hook component automatically swings down under its own weight and connects with the waiting area of ​​the large-sized stamping workpiece. This ensures that when the upper pressure die holder moves upward, it can hook up the large-sized stamping workpiece and drop it into the finished product area. This operation is repeated to avoid the large-sized stamping workpiece from sticking to the strip, the next large-sized stamping workpiece, the upper pressure die holder, and the lower pressure die holder before falling into the finished product area. This ensures the stamping efficiency of the error-proof progressive die for large-sized stamping workpieces.

[0019] 2) The large-size stamping workpiece anti-foolproof progressive die of this disclosure uses the hook component of the anti-foolproof component to hook the large-size stamping workpiece into the finished product area. The hook component has a simple structure and improves the efficiency of the large-size stamping workpiece falling into the finished product area, thereby improving the stamping efficiency of the large-size stamping workpiece anti-foolproof progressive die. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a large-size stamping workpiece error-proof progressive die according to an embodiment of the present disclosure;

[0022] Figure 2 for Figure 1 A schematic diagram of the upper pressing die base in one direction of the progressive die for preventing mistaken stamping of large-sized stamping workpieces;

[0023] Figure 3 for Figure 2 A cross-sectional view of the upper pressure mold base in one direction;

[0024] Figure 4 for Figure 3 The enlarged view shown at point A in the middle;

[0025] Figure 5 for Figure 2The diagram shows the structure of the anti-foolproof component in the upper pressure mold clamping base;

[0026] Figure 6 for Figure 5 The diagram shows the structure of the hook component in the foolproof assembly and the first large-size stamped workpiece in one state.

[0027] Figure 7 for Figure 5 The diagram shows a structural schematic of the hook component in the foolproof assembly and another state of the first large-size stamped workpiece.

[0028] Figure 8 for Figure 5 The diagram shows a structural schematic of the hook component in the foolproof assembly in another state with the first large-sized stamped workpiece.

[0029] Reference numerals: 10. Large-size stamping workpiece anti-foolproof progressive die; 100. Upper die holder; 200. Lower die holder; 300. Mounting support; 310. Fixing groove; 320. First stroke groove; 321. First preset fillet radius; 400. Anti-foolproof component; 410. Hook component; 411. Hook body; 411a. Swing hole; 412. Hook extension block; 412a. First smooth transition section; 412b. Second smooth transition section; 4 20. Hanging pin; 430. Fixed limit seat; 431. Second stroke groove; 431a. Second preset fillet; 440. Elastic reset component; 450. Blocking limit block; 500. Anti-collision damping sheet; 600. Reinforced locking block; 610. Locking groove; 700. Material strip; 20. First large-size stamped workpiece; 21. First hanging area; 22. Preset limit position; 23. First placement plate; 24. Middle connecting plate; 25. Second placement plate. Detailed Implementation

[0030] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.

[0031] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] This disclosure provides a progressive die for preventing mistakes in large-size stamping workpieces, including an upper die-clamping base, a lower die-clamping base, a strip material, a mounting bracket, and at least one mistake-proof component. The upper die-clamping base and the lower die-clamping base are correspondingly arranged. The strip material is movably disposed between the upper die-clamping base and the lower die-clamping base for conveying the large-size stamping workpiece and the raw materials required for the large-size stamping workpiece. The mounting bracket is disposed on the upper die-clamping base and forms a connected fixed groove and a first stroke groove. The mistake-proof component includes a hook component, a hanging pin, and a fixed limiting seat. At least a portion of the fixed limiting seat is embedded in the fixed groove. The fixed limiting seat forms a second stroke groove. The first stroke groove, the fixed groove, and the second stroke groove are sequentially connected. The two ends of the hanging pin are respectively fixedly connected to two opposite inner walls of the second stroke groove. The hook component is sequentially inserted through the first stroke groove, the fixed groove, and the second stroke groove, and the connecting end of the hook component is oscillatingly sleeved on the hanging pin. The hook-out end of the hook component is used to connect with the hanging area of ​​the large-size stamping workpiece.

[0034] The aforementioned large-size stamping workpiece error-proof progressive die, with the cooperation of the upper and lower die holders, progressively stamps the raw material to form a large-size stamping workpiece. Because the large-size stamping workpiece has a hanging area, when the large-size stamping workpiece needs to detach from the strip, the upper die holder moves downwards. The strip conveying the large-size stamping workpiece has forward inertia, causing the hook end of the hook component to slide along the outer surface of the large-size stamping workpiece along a predetermined sliding trajectory under the forward inertia of the large-size stamping workpiece, gradually swinging upwards to a preset limit position. After passing the preset limit position, since there is no resistance from the large-size stamping workpiece, the hook end of the hook component... Under its own weight, the automatic swing arm connects to the hanging area of ​​the large-sized stamping workpiece, ensuring that when the upper die holder moves upward, it can hook up the large-sized stamping workpiece and drop it into the finished product area. This process is repeated to avoid the large-sized stamping workpiece sticking to the strip, the next large-sized stamping workpiece, the upper die holder, and the lower die holder before falling into the finished product area. Furthermore, the large-sized stamping workpiece anti-foolproof progressive die of this disclosure uses the hook component of the anti-foolproof component to hook the large-sized stamping workpiece into the finished product area. The hook component has a simple structure, which improves the efficiency of the large-sized stamping workpiece falling into the finished product area, thereby improving the stamping efficiency of the large-sized stamping workpiece anti-foolproof progressive die.

[0035] To better understand the technical solutions and beneficial effects of this disclosure, the following detailed description is provided in conjunction with specific embodiments:

[0036] Please refer to the following: Figures 1 to 8 An embodiment of a large-size stamping workpiece anti-mistake progressive die 10 includes an upper die-clamping base 100, a lower die-clamping base 200, a strip 700, a mounting support 300, and at least one anti-mistake component 400. The upper die-clamping base 100 and the lower die-clamping base 200 are correspondingly arranged. The strip 700 is movably disposed between the upper die-clamping base 100 and the lower die-clamping base 200 for conveying the large-size stamping workpiece and the raw materials required for the large-size stamping workpiece. The mounting support 300 is disposed on the upper die-clamping base 100, and the mounting support 300 forms a connected fixing groove 310 and a first stroke groove 320. The anti-mistake component 400 includes a hook component 410, a hanging pin 420, and a fixed limiting seat 430. At least a portion of the fixed limiting seat 430 is embedded in the fixing groove 310, and the fixed limiting seat is fixed. The seat 430 has a second stroke groove 431. The first stroke groove 320, the fixing groove 310 and the second stroke groove 431 are connected in sequence. The two ends of the hanging pin 420 are fixedly connected to the two opposite inner side walls of the second stroke groove 431. The hook component 410 is sequentially inserted through the first stroke groove 320, the fixing groove 310 and the second stroke groove 431. The connecting end of the hook component 410 is swung and sleeved on the hanging pin 420. The hook-out end of the hook component 410 is used to connect with the hanging area of ​​the large-sized stamped workpiece. When the upper pressing mold seat 100 moves downward, the hook-out end moves upward along the predetermined sliding trajectory to the preset limit position 22. After passing the preset limit position 22, the hook-out end moves downward and connects with the hanging area. When the upper pressing mold seat 100 moves upward, it hooks the large-sized stamped workpiece into the finished product area.

[0037] In this embodiment, since the material strip 700 is movably disposed between the upper die-closing base 100 and the lower die-closing base 200, the conveying of the material strip 700 ensures that the raw material is ultimately formed into a large-sized stamped workpiece under the gradual die-closing of the upper die-closing base 100 and the lower die-closing base 200. The fixing groove 310 opened on the mounting support 300 provides a mounting position for the fixing limit seat 430. Since the fixing limit seat 430 is at least partially embedded in the fixing groove 310, it ensures that the fixing limit seat 430 is prevented from shifting when the hook component 410 swings or hooks out the large-sized stamped workpiece, thus ensuring the reliable installation of the fixing limit seat 430. Furthermore, since the mounting support 300 forms a connected fixing... The groove 310 and the first stroke groove 320, the fixed limiting seat 430 forms a second stroke groove 431, and the first stroke groove 320, the fixed groove 310 and the second stroke groove 431 are connected in sequence to ensure that the hook component 410 can pass through the first stroke groove 320, the fixed groove 310 and the second stroke groove 431 in sequence. On the one hand, this ensures that the hook component 410 can be swung and installed on the hanging pin 420 of the second stroke groove 431. On the other hand, it ensures that the hook component 410 has sufficient swing space in the first stroke groove 320, the fixed groove 310 and the second stroke groove 431, and ensures the reliability of the swing stroke when the hook component 410 hooks out a large-sized stamped workpiece, thereby improving the stamping efficiency of the large-sized stamped workpiece.

[0038] It is understood that the large-size stamping workpiece error-proof progressive die 10 of this disclosure, with the cooperation of the upper die holder 100 and the lower die holder 200, gradually stamps the raw material to form a large-size stamping workpiece. Since the large-size stamping workpiece is provided with a hanging area, when the large-size stamping workpiece needs to be removed from the material strip 700, the upper die holder 100 moves downward, and the material strip 700 has forward inertia in conveying the large-size stamping workpiece, so that the hook end of the hook component 410, under the push of the forward inertia of the large-size stamping workpiece, slides along the outer surface of the large-size stamping workpiece along a predetermined sliding trajectory and gradually swings upward to the preset limit position. After passing the preset limit position 22, since there is no large-sized stamping workpiece to block it, the hook end of the hook component 410 automatically swings down under its own weight and connects with the waiting area of ​​the large-sized stamping workpiece. This ensures that when the upper pressure die holder 100 moves upward, it can hook up the large-sized stamping workpiece and drop it into the finished product area. This operation is repeated to avoid the large-sized stamping workpiece from sticking to the strip 700, the next large-sized stamping workpiece, the upper pressure die holder 100 and the lower pressure die holder 200 before falling into the finished product area. This ensures the stamping efficiency of the large-sized stamping workpiece error-proof progressive die 10.

[0039] It can also be understood that the large-size stamping workpiece anti-foolproof progressive die 10 disclosed herein uses the hook component 410 of the anti-foolproof component 400 to hook the large-size stamping workpiece into the finished product area. The hook component 410 has a simple structure and improves the efficiency of the large-size stamping workpiece falling into the finished product area, thereby improving the stamping efficiency of the large-size stamping workpiece anti-foolproof progressive die 10.

[0040] Furthermore, please refer to the following: Figures 1 to 8 In one embodiment, the mistake-proofing method for a progressive die for large-size stamped workpieces includes the following steps:

[0041] S110 controls the conveyor belt 700 to transport the required raw materials; it can be understood that the conveyor belt 700 gradually transports the raw materials to the corresponding stamping positions.

[0042] S120: Control the upper pressure mold holder 100 to gradually press the raw material towards the lower pressure mold holder 200; it can be understood that the cooperating mold closing action of the upper pressure mold holder 100 and the lower pressure mold holder 200 allows the raw material to be formed after being pressed at various positions.

[0043] S130. After stamping is completed, the cutting blade is controlled to cut and separate the first large-size stamped workpiece 20 from the material strip 700. The first large-size stamped workpiece 20 is provided with a first hanging area 21. It can be understood that after the first stamping is completed, the first large-size stamped workpiece 20 needs to be cut from the raw material to ensure that the first large-size stamped workpiece 20 can be separated from the raw material so that it can fall into the finished product area later.

[0044] It can also be understood that after stamping, the first large-size stamped workpiece 20 is placed on the material strip 700 in an arch shape for transmission. Specifically, the first large-size stamped workpiece 20 includes a first placement plate 23, a middle connecting plate 24 and a second placement plate 25 connected in sequence. One end of the first placement plate 23 and one end of the second placement plate 25 are respectively inclinedly connected to the two ends of the middle connecting plate 24, and the other ends of the first placement plate 23 and the second placement plate 25 are both placed on the material strip 700 so that the middle connecting plate 24 is away from the material strip 700. The other end of the first placement plate 23 is provided with a first hanging area 21, and the other end of the second placement plate 25 is located close to the finished product area.

[0045] S140, continue to control the material belt 700 to move forward so that the hook component 410 is positioned above the first large-size stamped workpiece 20; it can be understood that since the hook component 410 is positioned above the first large-size stamped workpiece 20, it ensures that the subsequent hook component 410 can slide along the predetermined sliding trajectory along the outer surface of the first large-size stamped workpiece 20 and gradually swing upward.

[0046] It should be noted that the outer surface of the first large-size stamped workpiece 20 is along the side of the first placement plate 23 away from the strip 700.

[0047] S150, continue to control the upper pressure mold base 100 to move downward; it can be understood that the upper pressure mold base 100 continues to move downward to ensure that the hook component 410 can gradually swing upward according to the predetermined sliding trajectory.

[0048] S160, based on the forward inertia of the conveyor belt 700 transporting the first large-size stamped workpiece 20, the hook end of the hook component 410 is pushed along a predetermined sliding trajectory to a preset limit position 22. After passing the preset limit position 22, as... Figure 7 and Figure 8 As shown, the hook component 410 swings down and connects to the first hanging area 21 under its own weight, and the upper pressing mold base 100 continues to move upward. It can be understood that because the material belt 700 conveys the first large-size stamped workpiece 20 with forward inertia, the hook end of the hook component 410 slides along the outer surface of the first large-size stamped workpiece 20 along a predetermined sliding trajectory under the forward inertia of the first large-size stamped workpiece 20 and gradually swings up to the preset limit position 22. After passing the preset limit position 22, since there is no first large-size stamped workpiece 20 to block it, the hook end of the hook component 410 automatically swings down and connects to the first hanging area 21 under its own weight. As the upper pressing mold base 100 continues to move upward, the first large-size stamped workpiece 20 is hooked by the upper pressing mold base 100.

[0049] Furthermore, such as Figures 6 to 8 As shown, the preset limit position 22 is adjacent to the first hanging area 21, and in the conveying direction of the material belt 700, the first hanging area 21 and the preset limit position 22 are sequentially distributed on the other end of the first placement plate 23. Specifically, the preset limit position 22 is the edge of the first hanging area 21.

[0050] S170: The first large-size stamped workpiece 20 falls into the finished product area. Continue to control the material strip 700 to move forward, and control the upper pressure die holder 100 and the lower pressure die holder 200 to continue stamping. Separate to obtain the second large-size stamped workpiece. Repeat steps S130-S170.

[0051] It is understood that the large-size stamping workpiece error-proof progressive die 10 of this disclosure adopts continuous and rapid stamping to ensure that the large-size stamping workpiece can be stamped sequentially, and to prevent the large-size stamping workpiece from sticking to the strip 700, the next large-size stamping workpiece, the upper die holder 100 and the lower die holder 200 before falling into the finished product area, thereby ensuring the stamping efficiency of the large-size stamping workpiece error-proof progressive die 10.

[0052] It should be noted that the large-size stamped workpiece, the first large-size stamped workpiece 20 and the second large-size stamped workpiece refer to the formed workpiece after the upper pressing die 100 and the lower pressing die 200 have been stamped step by step.

[0053] It should also be noted that the conveyor belt 700 moves along the position where the large stamping workpiece is set by the foolproof component 400.

[0054] Furthermore, such as Figure 3 and Figure 4 As shown, in one embodiment, the large-size stamping workpiece error-proof progressive die 10 further includes a reinforcing locking block 600. The reinforcing locking block 600 is disposed between the upper pressing die base 100 and the mounting support 300, and is fixedly connected to the upper pressing die base 100. A groove 610 is formed at one end of the reinforcing locking block 600 facing the fixed limiting seat 430, and at least a portion of the fixed limiting seat 430 is accommodated within the groove 610. In this embodiment, since at least a portion of the fixed limiting seat 430 is accommodated within the groove 610 and at least a portion is embedded within the fixed groove 310, the stability of the fixed limiting seat 430's installation position is further enhanced, thereby ensuring the reliability of the hook component 410's installation.

[0055] like Figure 1 , Figure 4 and Figure 6 As shown, in one embodiment, the hook component 410 includes a hook body 411 and a hook-out bend 412 connected together. The hook body 411 has a swing hole 411a, and a hanging pin 420 passes through the swing hole 411a. The hook-out bend 412 is arranged in the direction of conveying the material belt 700 and is used to connect with the area to be hung in order to hook out large-sized stamped workpieces. In this embodiment, since the hook body 411 has a swing hole 411a, which cooperates with the hanging pin 420, the hook body 411 swings up and down around the hanging pin 420. The hook-out bending block 412 has a certain degree of bending and is set in the direction of conveying the material strip 700, ensuring that the hook-out bending block 412 can be connected to the hanging area of ​​the large-size stamping workpiece. This ensures the reliability of the hook-out bending block 412 in hooking out the large-size stamping workpiece into the finished product area, thereby avoiding the situation where the large-size stamping workpiece sticks to the material strip 700, the next large-size stamping workpiece, the upper pressure mold base 100 and the lower pressure mold base 200 before falling into the finished product area.

[0056] Furthermore, such as Figures 4 to 6As shown, in one embodiment, the foolproof component 400 further includes an elastic reset member 440, one end of which is connected to the hook body 411 and the other end of which is connected to the inner wall of the first stroke groove 320, for automatically resetting the hooked bend 412 to the hanging area when the hook body 411 swings down. It is understood that when the hook body 411 does not swing, the elastic reset member 440 is in its original state, that is, the elastic reset member 440 does not undergo elastic deformation. When the hook body 411 swings up along the predetermined sliding trajectory to the preset limit position 22, the elastic reset member 440 elastically elongates. After passing the preset limit position 22, under the combined action of the hook body 411's own weight and the elastic rebound force of the elastic reset member 440, it is ensured that the hook body 411 can swing down in time, ensuring that the hook-out bend 412 is engaged with the hanging area of ​​the large-sized stamped workpiece, so that the large-sized stamped workpiece can fall into the finished product area in time. The added elastic reset member 440 can more effectively improve the reliability of the connection between the hook-out bend 412 and the hanging area of ​​the large-sized stamped workpiece. In this embodiment, the elastic reset member 440 is a tension spring. When the tension spring is subjected to axial tension, it undergoes elastic deformation, that is, elastic elongation. When the external force is removed, the tension spring shortens and resets itself.

[0057] Please refer to the following: Figures 5 to 7 In one embodiment, a first smooth transition portion 412a is formed on the side of the hook-out bend 412 that contacts the large-sized stamped workpiece. This added first smooth transition portion 412a ensures direct contact between the hook-out bend 412 and the outer surface of the large-sized stamped workpiece. This prevents wear on the outer surface of the large-sized stamped workpiece, thus avoiding impact on its forming effect. It also prevents the hook-out bend 412 from getting stuck on the outer surface of the large-sized stamped workpiece as it gradually swings down, thereby affecting the overall stamping efficiency. In this embodiment, the hook-out bend 412 is made of metal. Furthermore, in one embodiment, the first smooth transition portion 412a undergoes surface heat treatment to ensure that it is not easily stuck when in contact with the outer surface of the large-sized stamped workpiece and to reduce wear on the large-sized stamped workpiece.

[0058] like Figures 5 to 8 As shown, in one embodiment, a second smooth transition portion 412b is formed at the connection between the side wall of the hook body 411 and the side wall of the hook-out bend 412, and the second smooth transition portion 412b is engaged with the hanging area. In this embodiment, since the connection between the side wall of the hook body 411 and the side wall of the hook-out bend 412 is engaged with the hanging area, the added second smooth transition portion 412b avoids wear on the edges of large-sized stamped workpieces, thereby improving the forming effect of large-sized stamped workpieces.

[0059] Furthermore, in one embodiment, the foolproof component 400 also includes an elastic telescopic slider (not shown), and the first smooth transition portion 412a is formed with a mounting clearance hole (not shown). At least a portion of the elastic telescopic slider is accommodated in the mounting clearance hole so that the elastic telescopic slider elastically contracts when it comes into contact with the outer surface of the large-sized stamped workpiece, and automatically elastically extends and resets when it leaves the outer surface of the large-sized stamped workpiece, while ensuring the firmness of the elastic telescopic slider in the hanging area of ​​the large-sized stamped workpiece.

[0060] In one embodiment, the hook body 411 and the hook-out bend 412 are integrally formed. It is understood that the hook body 411 and the hook-out bend 412 need to work together to hook large-sized stamped workpieces into the finished product area. Since large-sized stamped workpieces have high weight, the hook body 411 and the hook-out bend 412 need to have high structural strength to ensure a firm connection between them and to prevent the hook-out bend 412 from breaking when hooking the large-sized stamped workpiece. In this embodiment, the hook body 411 and the hook-out bend 412 are integrally die-cast to provide high strength.

[0061] Furthermore, please refer to the following: Figures 4 to 6 In one embodiment, the foolproof component 400 further includes a stop and limit block 450, which is disposed on the side of the second stroke groove 431 facing the hook-out bend 412. The stop and limit block 450 is used to stop the hook body 411 when it swings down, so that the hook-out bend 412 is engaged in the hanging area. In this embodiment, since the stop and limit block 450 is provided on the side of the second stroke groove 431 facing the hook-out bend 412, when the hook body 411 swings down, it prevents direct collision between the hook body 411 and the edge of the second stroke groove 431, and also prevents the hook body 411 from swinging down excessively, affecting the reliability of the hook-out bend 412 engaging in the hanging area of ​​the large-sized stamped workpiece.

[0062] Furthermore, such as Figure 4 As shown, in one embodiment, the large-size stamping workpiece error-proof progressive die 10 further includes an anti-collision damping plate 500. The anti-collision damping plate 500 is disposed on the stop limiting block 450 to prevent the hook body 411 from directly colliding with the stop limiting block 450 when it swings down. In this embodiment, the added anti-collision damping plate 500 prevents the hook body 411 from directly colliding with the stop limiting block 450 when it swings down, avoiding contact wear between the hook body 411 and the stop limiting block 450, and also has a certain buffering and shock absorption effect.

[0063] like Figure 4As shown, in one embodiment, the lateral width of the first stroke groove 320 is greater than the lateral width of the second stroke groove 431. In this embodiment, because the lateral width of the first stroke groove 320 is greater than the lateral width of the second stroke groove 431, when the hook body 411 swings upward along a predetermined sliding trajectory, the hook body 411 first contacts the lower edge of the second stroke groove 431, and then contacts the lower edge of the first stroke groove 320. Further, in one embodiment, the lower edge of the first stroke groove 320 is formed with a first preset rounded corner 321, and the lower edge of the second stroke groove 431 is formed with a second preset rounded corner 431a. In this embodiment, the added first preset rounded corner 321 and second preset rounded corner 431a prevent wear when the hook body 411 collides with the lower edges of the first stroke groove 320 and the lower edges of the second stroke groove 431, and at the same time improve the service life of the fixed limiting seat 430 and the mounting support 300.

[0064] like Figure 1 , Figure 5 As shown, in one embodiment, there are two foolproof components 400, both of which are mounted on the mounting bracket 300 to jointly hook out large-sized stamped workpieces. In this embodiment, both foolproof components 400 are mounted on the bracket 300, so that the two hook components 410 can simultaneously hook the hanging area of ​​the large-sized stamped workpiece, ensuring that the force is more uniform when hooking out the large-sized stamped workpiece, improving the efficiency of hooking out the large-sized stamped workpiece, thereby improving the stamping efficiency of the foolproof progressive die 10 for large-sized stamped workpieces.

[0065] This disclosure also provides an automotive parts forming apparatus, including the large-size stamping workpiece error-proof progressive die 10 described in any of the above embodiments.

[0066] Compared with the prior art, this disclosure has at least the following advantages:

[0067] 1) The large-size stamping workpiece anti-foolproof progressive die 10 of this disclosure, with the cooperation of the upper die holder 100 and the lower die holder 200, gradually stamps the raw material to form a large-size stamping workpiece. Since the large-size stamping workpiece is provided with a hanging area, when the large-size stamping workpiece needs to be removed from the material strip 700, the upper die holder 100 moves downward, and the material strip 700 has forward inertia in conveying the large-size stamping workpiece, so that the hook end of the hook component 410, under the push of the forward inertia of the large-size stamping workpiece, slides along the outer surface of the large-size stamping workpiece along a predetermined sliding trajectory and gradually swings up to the preset limit position 2. 2. After passing the preset limit position 22, since there is no large-sized stamping workpiece to block it, the hook end of the hook component 410 automatically swings down under its own weight and connects with the waiting area of ​​the large-sized stamping workpiece. This ensures that when the upper pressure die holder 100 moves upward, it can hook up the large-sized stamping workpiece and drop it into the finished product area. This operation is repeated to avoid the large-sized stamping workpiece from sticking to the strip 700, the next large-sized stamping workpiece, the upper pressure die holder 100 and the lower pressure die holder 200 before falling into the finished product area. This ensures the stamping efficiency of the large-sized stamping workpiece error-proof progressive die 10.

[0068] 2) The large-size stamping workpiece anti-foolproof progressive die 10 of this disclosure uses the hook component 410 of the anti-foolproof component 400 to hook the large-size stamping workpiece into the finished product area. The hook component 410 has a simple structure and improves the efficiency of the large-size stamping workpiece falling into the finished product area, thereby improving the stamping efficiency of the large-size stamping workpiece anti-foolproof progressive die 10.

[0069] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A progressive die for preventing mistakes in large-size stamping workpieces, comprising an upper die holder, a lower die holder, and a strip material, wherein the upper die holder and the lower die holder are correspondingly arranged, and the strip material is movably disposed between the upper die holder and the lower die holder for conveying the large-size stamping workpiece and the raw materials required for the large-size stamping workpiece, characterized in that... The large-size stamping workpiece anti-foolproof progressive die also includes a mounting support and at least one anti-foolproof component. The mounting support is disposed on the upper pressing die base, and the mounting support forms a connected fixing groove and a first stroke groove. The foolproof component includes a hook component, a hanging pin, and a fixed limiting seat. At least a portion of the fixed limiting seat is embedded in the fixed groove. The fixed limiting seat forms a second stroke groove. The first stroke groove, the fixed groove, and the second stroke groove are sequentially connected. The two ends of the hanging pin are respectively fixedly connected to two opposite inner walls of the second stroke groove. The hook component is sequentially inserted through the first stroke groove, the fixed groove, and the second stroke groove. The connecting end of the hook component is swung and sleeved on the hanging pin. The hook-out end of the hook component is used to connect with the hanging area of ​​the large-sized stamped workpiece.

2. The large-size stamping workpiece error-proof progressive die according to claim 1, characterized in that, The hook component includes a hook body and a hook-out bend block connected to each other. The hook body has a swing hole, and the hanging pin passes through the swing hole. The hook-out bend block is arranged in the direction of the material conveyor belt and is used to connect with the hanging area to hook out the large-sized stamped workpiece.

3. The large-size stamping workpiece error-proof progressive die according to claim 2, characterized in that, The foolproof component also includes an elastic reset member, one end of which is connected to the hook body and the other end of which is connected to the inner wall of the first stroke groove. When the hook body swings down, the hook-out bend automatically resets and connects to the hanging area.

4. The large-size stamping workpiece error-proof progressive die according to claim 2, characterized in that, The side of the hook-out bend that contacts the large-sized stamped workpiece has a first smooth transition portion.

5. The progressive die for preventing mistakes in large-size stamping workpieces according to claim 2, characterized in that, A second smooth transition portion is formed at the connection between the side wall of the hook body and the side wall of the hook-out bend, and the second smooth transition portion is engaged with the area to be hung.

6. The large-size stamping workpiece error-proof progressive die according to claim 2, characterized in that, The hook body and the hook-out bend are integrally formed.

7. The large-size stamping workpiece error-proof progressive die according to claim 2, characterized in that, The foolproof component also includes a stop and limit block, which is disposed on the side of the second stroke groove facing the hook-out bend block. It is used to stop the hook body when the hook body swings down, so that the hook-out bend block is engaged in the hanging area.

8. The large-size stamping workpiece error-proof progressive die according to claim 7, characterized in that, The large-size stamping workpiece anti-foolproof progressive die also includes an anti-collision damping plate, which is disposed on the stop limit block to prevent the hook body from directly colliding with the stop limit block when it swings down.

9. The progressive die for preventing mistakes in large-size stamping workpieces according to claim 1, characterized in that, The number of the error prevention components is two, and both error prevention components are set on the mounting bracket to jointly hook out the large-sized stamped workpiece.

10. An automotive parts forming equipment, characterized in that, The large-size stamping workpiece anti-foolproof progressive die includes any one of claims 1 to 9.

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