A punching die for automobile parts
By introducing positioning and buffering mechanisms into the punching die for automotive parts, the problem of parts moving during the punching process is solved, achieving stable clamping and protection, and improving processing quality and the safety of parts.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN TONGBEN AUTO PARTS CO LTD
- Filing Date
- 2025-08-12
- Publication Date
- 2026-07-10
AI Technical Summary
In the current process of punching automotive parts, the parts are prone to move during punching, which affects the processing quality.
The system employs a positioning mechanism and a buffer mechanism, using the cooperation of an electric telescopic rod and a lifting cylinder to achieve stable clamping and positioning of the parts. During the punching process, the buffer mechanism protects the parts from damage.
It effectively prevents parts from moving during the punching process, ensures processing quality, and protects parts from impact damage.
Smart Images

Figure CN224475501U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts processing technology, and in particular to a punching die for automotive parts. Background Technology
[0002] Automotive parts refer to individual components or parts that make up the various systems and parts of a car. They are the basic building blocks of a car, performing different functions to enable the whole vehicle to operate and be used normally. During the production and processing of automotive parts, punching is required, and molds are needed to position and punch the automotive parts.
[0003] A Chinese patent discloses a punching die for automotive parts (publication number CN218555309U). This patented technology fixes the movable plate by tightening the fixing screws, and the guide post of the top plate fits into the guide post hole to achieve the effect of die positioning.
[0004] However, most existing methods for punching automotive parts involve directly placing the parts on a mounting base without positioning, which makes them prone to movement during punching and affects quality. For example, the aforementioned prior art uses this method of directly placing the automotive parts. In practical applications, when punching automotive parts directly on a mounting base, vibration and displacement during punching can easily occur, affecting processing quality. Therefore, those skilled in the art provide a punching die for automotive parts to solve the problems mentioned in the background art. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a punching die for automotive parts, which solves the problems mentioned in the background.
[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a punching die for automotive parts, comprising a base, connecting rods symmetrically arranged on the upper surface of the base, and a top plate installed on the upper end of the connecting rods. A lifting cylinder is installed on the upper surface of the top plate, a lifting plate is connected to the lower end of the lifting cylinder, and punching rods are symmetrically arranged on the lower surface of the lifting plate.
[0007] The upper surface of the base is provided with a placement seat, and the upper surface of the placement seat is provided with a positioning mechanism. The positioning mechanism includes a positioning frame installed at one end of the upper surface of the placement seat. Guide rods are provided through both sides of the positioning frame. One end of the guide rod is connected to a positioning plate above the placement seat, and the other end of the guide rod is connected to a connecting plate. An electric telescopic rod is also provided on one side of the positioning frame.
[0008] The placement seat is also provided with a buffer mechanism. The buffer mechanism includes a mounting plate that is bolted to the front and rear surfaces of the placement seat. A buffer rod is provided through the upper surface of the mounting plate. A buffer plate is provided at the upper end of the buffer rod. A buffer spring is sleeved on the outside of the buffer rod. A buffer pad is also provided on the upper surface of the buffer plate.
[0009] As a further technical solution of this utility model, the fixed end of the lifting cylinder is installed on the upper surface of the top plate, and the telescopic end of the lifting cylinder is connected to the upper surface of the lifting plate.
[0010] As a further technical solution of this utility model, a recycling groove is provided on one side of the base, a recycling box is slidably installed inside the recycling groove, guide rails are symmetrically arranged on the outer side of the recycling box, and a guide groove that slides against the guide rails is provided on the inner side of the recycling groove.
[0011] As a further technical solution of this utility model, the fixed end of the electric telescopic rod is installed on one side of the positioning frame, and the telescopic end of the electric telescopic rod is connected to the middle position of one side of the connecting plate.
[0012] As a further technical solution of this utility model, the positioning frame is U-shaped, and two guide rods are symmetrically arranged on the side of the positioning frame.
[0013] As a further technical solution of this utility model, the buffer rod is slidably installed inside the mounting plate, and two buffer rods are symmetrically arranged on the upper surface of the mounting plate, and the buffer pad is made of sponge.
[0014] As a further technical solution of this utility model, the upper end of the buffer spring is fixed to the lower surface of the buffer plate, and the lower end of the buffer spring is fixed to the upper surface of the mounting plate.
[0015] This utility model provides a punching die for automotive parts, which has the following advantages compared with the prior art:
[0016] 1. This design is for a punching die for automotive parts. The operation of the electric telescopic rod in the positioning mechanism causes the connecting plate to move, which in turn drives the guide rod to move. During the movement, the positioning plate moves towards the positioning frame, thus positioning and clamping the automotive parts placed on the placement seat, ensuring their stability and preventing them from moving and affecting the punching operation.
[0017] 2. This design is for a punching die for automotive parts. Through the arrangement of a mounting plate, buffer plate, buffer pad, buffer spring, and buffer rod in the buffer mechanism, the lifting plate will contact the buffer pad on the buffer plate to achieve the purpose of buffering when it rises and falls. At the same time, the buffer rod will move inside the mounting plate, and the buffer spring will be compressed and deformed. This achieves the purpose of efficient buffering and avoids direct contact between the lifting plate and the automotive parts, thus preventing damage. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of a punching die for automotive parts.
[0019] Figure 2 This is a schematic diagram of a positioning mechanism in a punching die for automotive parts.
[0020] Figure 3 This is a schematic diagram of a recycling bin in a punching die for automotive parts.
[0021] Figure 4 This is a schematic diagram of a buffer mechanism in a punching die for automotive parts.
[0022] In the diagram: 1. Base; 11. Connecting rod; 2. Recycling bin; 21. Recycling trough; 3. Placement seat; 4. Top plate; 5. Lifting cylinder; 51. Lifting plate; 52. Punching rod; 6. Positioning mechanism; 61. Positioning frame; 62. Positioning plate; 63. Guide rod; 64. Connecting plate; 65. Electric telescopic rod; 7. Buffer mechanism; 71. Mounting plate; 72. Buffer plate; 73. Buffer pad; 74. Buffer spring; 75. Buffer rod. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0024] Please see Figure 1-4This utility model provides a technical solution for a punching die for automotive parts: it includes a base 1, connecting rods 11 symmetrically arranged on the upper surface of the base 1, and a top plate 4 installed on the upper end of the connecting rods 11. A lifting cylinder 5 is installed on the upper surface of the top plate 4, and a lifting plate 51 is connected to the lower end of the lifting cylinder 5. Punching rods 52 are symmetrically arranged on the lower surface of the lifting plate 51. This arrangement uses the operation of the lifting cylinder 5 to make the lifting plate 51 rise and fall, thereby enabling the lifting plate 51 to rise and fall to punch the automotive parts on the placement seat 3 through the punching rods 52.
[0025] A placement seat 3 is provided on the upper surface of the base 1, and a positioning mechanism 6 is provided on the upper surface of the placement seat 3. The positioning mechanism 6 includes a positioning frame 61 installed at one end of the upper surface of the placement seat 3. Guide rods 63 are provided through both sides of the positioning frame 61. One end of the guide rod 63 is connected to a positioning plate 62 above the placement seat 3, and the other end of the guide rod 63 is connected to a connecting plate 64. An electric telescopic rod 65 is also provided on one side of the positioning frame 61. The operation of the electric telescopic rod 65 will cause the connecting plate 64 to move, and during the movement, the positioning plate 62 connected to the guide rod 63 will move. This achieves the purpose of clamping and positioning the automotive parts placed on the placement seat 3.
[0026] A buffer mechanism 7 is also provided on the outside of the placement seat 3. The buffer mechanism 7 includes a mounting plate 71 that is bolted to the front and rear surfaces of the placement seat 3. A buffer rod 75 is provided through the upper surface of the mounting plate 71. A buffer plate 72 is provided at the upper end of the buffer rod 75. A buffer spring 74 is sleeved on the outside of the buffer rod 75. A buffer pad 73 is also provided on the upper surface of the buffer plate 72. This arrangement, using the buffer mechanism 7, can protect the automotive parts when the lifting plate 51 is raised and lowered to punch holes, avoiding damage caused by excessive impact.
[0027] like Figure 3 As shown, the fixed end of the lifting cylinder 5 is installed on the upper surface of the top plate 4, and the telescopic end of the lifting cylinder 5 is connected to the upper surface of the lifting plate 51. This arrangement uses the operation of the lifting cylinder 5 to make the lifting plate 51 rise and fall, thereby using the punching rod 52 on the lower surface of the lifting plate 51 to punch the automotive parts downwards.
[0028] like Figure 3 As shown, a recycling trough 21 is provided on one side of the base 1. A recycling box 2 is slidably installed inside the recycling trough 21. Guide rails are symmetrically arranged on the outer side of the recycling box 2. A guide groove is provided on the inner side of the recycling trough 21 that slides against the guide rails. This arrangement allows the recycling box 2 to slide inside the recycling trough 21, that is, to be guided and moved inside the guide groove by the guide rails. In this way, the recycling box 2 can be installed and disassembled to achieve the purpose of recycling the waste inside it.
[0029] like Figure 2 As shown, the fixed end of the electric telescopic rod 65 is installed on one side of the positioning frame 61, and the telescopic end of the electric telescopic rod 65 is connected to the middle position of one side of the connecting plate 64. The positioning frame 61 is U-shaped, and two guide rods 63 are symmetrically arranged on the side of the positioning frame 61. This arrangement uses the operation of the electric telescopic rod 65 to move the connecting plate 64, and when moving, the guide rods 63 can move the positioning plate 62 to clamp and position the automotive parts placed on the placement seat 3, so as to ensure its stability.
[0030] like Figure 4 As shown, the buffer rod 75 is slidably installed inside the mounting plate 71, and two buffer rods 75 are symmetrically arranged on the upper surface of the mounting plate 71. The buffer pad 73 is made of sponge. The upper end of the buffer spring 74 is fixed to the lower surface of the buffer plate 72, and the lower end of the buffer spring 74 is fixed to the upper surface of the mounting plate 71. This arrangement uses the buffer pad 73 to buffer the lifting plate 51 when it is raised and lowered. The buffering effect can be improved by the compression deformation of the buffer spring 74 outside the buffer rod 75. This can prevent the lifting plate 51 from directly contacting the automotive parts and causing damage.
[0031] The working principle of this utility model is as follows: When using the punching die for automotive parts, the automotive part (plate) to be punched is first placed on the placement seat 3. After placement, the electric telescopic rod 65 is activated by an external power source. When the electric telescopic rod 65 is working, the connecting plate 64 moves away from the positioning frame 61, and the guide rod 63 moves inside the positioning frame 61. During its movement, the positioning plate 62 moves towards the positioning frame 61 to clamp and position the automotive part, ensuring its stability.
[0032] After positioning, activating the lifting cylinder 5 causes the lifting plate 51 to move downwards, and the punching rod 52 to move downwards to punch holes in the automotive parts. When the lifting plate 51 punches downwards, its lower surface contacts the buffer pad 73 on the buffer plate 72, which serves as a buffer. Furthermore, when moving downwards, the buffer rod 75 slides inside the mounting plate 71, causing the buffer spring 74 outside the buffer rod 75 to be compressed and deformed. This prevents damage caused by the impact force of the lifting plate 51 contacting the automotive parts, making it highly practical.
[0033] All electrical devices used in this invention are existing and known, and are connected to an external main controller and power supply. The main controller can be a conventional and known device such as a computer, and can be purchased and used directly on the market. Its structure, circuit and control principle are all existing and known technologies. Therefore, the structure, circuit and control principle of the device are not described in detail here.
[0034] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the art.
Claims
1. A punching die for automotive parts, characterized in that, It includes a base (1), connecting rods (11) symmetrically arranged on the upper surface of the base (1), and a top plate (4) installed on the upper end of the connecting rods (11). A lifting cylinder (5) is installed on the upper surface of the top plate (4), and a lifting plate (51) is connected to the lower end of the lifting cylinder (5). A punching rod (52) is symmetrically arranged on the lower surface of the lifting plate (51). The upper surface of the base (1) is provided with a placement seat (3), and the upper surface of the placement seat (3) is provided with a positioning mechanism (6). The positioning mechanism (6) includes a positioning frame (61) installed at one end of the upper surface of the placement seat (3). Guide rods (63) are provided through both sides of the positioning frame (61). One end of the guide rod (63) is connected to a positioning plate (62) above the placement seat (3), and the other end of the guide rod (63) is connected to a connecting plate (64). An electric telescopic rod (65) is also provided on one side of the positioning frame (61). The placement seat (3) is also provided with a buffer mechanism (7). The buffer mechanism (7) includes a mounting plate (71) that is bolted to the front and rear surfaces of the placement seat (3). A buffer rod (75) is provided through the upper surface of the mounting plate (71). A buffer plate (72) is provided at the upper end of the buffer rod (75). A buffer spring (74) is sleeved on the outside of the buffer rod (75). A buffer pad (73) is also provided on the upper surface of the buffer plate (72).
2. The punching die for automotive parts according to claim 1, characterized in that, The fixed end of the lifting cylinder (5) is installed on the upper surface of the top plate (4), and the telescopic end of the lifting cylinder (5) is connected to the upper surface of the lifting plate (51).
3. The punching die for automotive parts according to claim 1, characterized in that, A recycling groove (21) is provided on one side of the base (1). A recycling box (2) is slidably installed inside the recycling groove (21). Guide rails are symmetrically arranged on the outer side of the recycling box (2). A guide groove that slides with the guide rails is provided on the inner side of the recycling groove (21).
4. The punching die for automotive parts according to claim 1, characterized in that, The fixed end of the electric telescopic rod (65) is installed on one side of the positioning frame (61), and the telescopic end of the electric telescopic rod (65) is connected to the middle position of one side of the connecting plate (64).
5. A punching die for automotive parts according to claim 1, characterized in that, The positioning frame (61) is U-shaped, and two guide rods (63) are symmetrically arranged on the side of the positioning frame (61).
6. A punching die for automotive parts according to claim 1, characterized in that, The buffer rod (75) is slidably installed inside the mounting plate (71), and two buffer rods (75) are symmetrically arranged on the upper surface of the mounting plate (71). The buffer pad (73) is made of sponge.
7. A punching die for automotive parts according to claim 1, characterized in that, The upper end of the buffer spring (74) is fixed to the lower surface of the buffer plate (72), and the lower end of the buffer spring (74) is fixed to the upper surface of the mounting plate (71).