Scratch-proof precision automobile part stamping die

Abstract

The utility model relates to the technical field of automobile parts stamping die, and disclose a precise automobile parts stamping die of scratchproof, including base, the top surface of base is installed with lower mould. The precise automobile parts stamping die of scratchproof, the elastic column that can provide elastic support has been installed to the top surface front and back both ends of lower mould, reduces the scratch, the anti -scratch pad is still arranged to the middle part of lower mould, and the anti -scratch pad reduces the contact friction of upper mould and lower mould, and then slows down the scratch, and the positioning post of the top surface both sides of lower mould is inserted inside upper mould when die stamping, keeps the stable stamping position, reduces the scratch of stamping deviation again, realizes the rigid contact that can be reduced through elastic buffer, and wear -resistant material can also be used to reduce the friction damage, thereby guaranteeing the part surface quality and die service life, avoiding the scratch of collision or friction, leading to the top surface precision of lower mould to drop, influence part surface quality.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts stamping die technology, and in particular to a scratch-resistant precision automotive parts stamping die. Background Technology

[0002] In the vast and complex system of the automobile manufacturing industry, stamping dies for automobile parts occupy a pivotal position and can be regarded as the core equipment of automobile production. Automobile manufacturing is an industry that is highly dependent on dies. An ordinary car consists of more than 20,000 parts, all of which are the work of stamping dies. Moreover, stamping dies have a decisive influence on the quality of automobile manufacturing. Therefore, it is necessary to design a precision stamping die for automobile parts that is scratch-resistant.

[0003] A scratch-resistant precision automotive parts stamping die disclosed in CN220837494U includes a worktable. An inverted L-shaped support arm is fixedly installed on the rear side wall of the worktable. A hydraulic cylinder is fixedly installed on the support arm. The telescopic rod end of the hydraulic cylinder passes through the upper surface of the support arm and extends downward, and is fixedly connected to a connecting block that is slidably connected to the inner side wall of the support arm. A stamping frame is fixedly connected to one side of the connecting block. By setting the stamping frame and setting multiple sets of springs in the stamping frame, the scrap material is prevented from springing back during sheet metal stamping and punching. By setting a clamping assembly, the device can clamp sheets of different specifications and lengths, greatly increasing its versatility and practicality.

[0004] The aforementioned patent achieves the goal of preventing waste material from rebounding during the stamping and punching of sheet metal by setting a stamping frame and multiple sets of springs inside the stamping frame; by setting a clamping component, the device can clamp sheet metal of different specifications and lengths, greatly increasing its versatility and practicality.

[0005] However, this device lacks a scraping device on the top surface of the lower die. During the stamping separation process, it is prone to scratches due to rigid collisions or friction, which leads to a decrease in the precision of the top surface of the lower die, affecting the surface quality of the parts and the consistency of subsequent forming. Installing a flexible anti-scratch structure can reduce rigid contact through elastic buffering and reduce friction damage through wear-resistant materials, thereby ensuring the surface quality of the parts and the service life of the die. In addition, this equipment lacks a device to change the die to fit different part models. Installing this device can realize the quick change and reliable fixation of the die, thereby improving production changeover efficiency and ensuring stamping accuracy and die service life. Utility Model Content

[0006] The purpose of this invention is to provide a scratch-resistant precision automotive parts stamping die, which solves the problem mentioned in the background art of lacking a device to prevent scratches on the top surface of the lower die. This results in scratches caused by rigid collisions or friction during the stamping separation process, leading to a decrease in the precision of the lower die's top surface, affecting the surface quality of the parts and the consistency of subsequent forming. Installing an elastic scratch-resistant structure reduces rigid contact through elastic buffering and reduces frictional damage using wear-resistant materials, thereby ensuring the surface quality of the parts and the service life of the die. Furthermore, this invention addresses the lack of a device for changing the die to fit different part models. Installing this device enables rapid die replacement and reliable fixation, thereby improving production changeover efficiency and ensuring stamping accuracy and die life.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a precision automotive parts stamping die with scratch resistance, comprising a base, a lower die mounted on the top surface of the base, anti-scratch mechanisms provided on both sides of the top surface of the lower die, an upper die mounted above the lower die, and replacement mechanisms fixedly connected to the left and right sides of the upper die. The anti-scratch mechanism includes positioning posts on both sides of the top surface of the lower die, elastic posts mounted at the front and rear ends of the top surface of the lower die, and anti-scratch pads mounted around the top center of the lower die. The replacement mechanism includes connecting rods fixedly connected to the left and right sides of the upper die, and a fixing frame snapped around the bottom surface of the upper die, with fixing bolts penetrating through the inside of both sides of the fixing frame.

[0008] As a further embodiment of this utility model, baffles are fixedly connected to the front and rear ends of the fixed frame, and through holes are provided on the left and right sides of the baffles. The baffles serve to limit the front and rear movement of the components inside the fixed frame, preventing them from falling off or shifting. The through holes on both sides provide a passage for the connecting parts, facilitating the assembly and fixing of the fixed frame with other structures.

[0009] As a further embodiment of this utility model, a front fastener passes through the interior of the perforation, and a handle is fixedly connected to the middle part of the two front fasteners. The front fasteners enable the fixing frame to be locked and fixed to other structures, and the middle handle facilitates manual and quick installation and removal of the front fasteners without the need for additional tools, thereby improving the efficiency of disassembly and assembly.

[0010] As a further embodiment of this utility model, the top surface of the connecting rod is fitted with a slot, and a stamping plate is provided outside the slot. The slot and the connecting rod are fitted together to achieve precise alignment between the stamping plate and the structure below, while providing a stable connection base for both, facilitating rapid assembly and force transmission.

[0011] As a further embodiment of this utility model, a stamping hydraulic rod is installed inside each of the four corners of the stamping plate. A base is fixedly connected to the bottom surface of the stamping hydraulic rod. The setting of the stamping hydraulic rod provides power to the stamping plate to realize the stamping action. The base fixes the bottom of the hydraulic rod, ensuring stability and force balance during stamping and improving stamping accuracy.

[0012] As a further embodiment of this utility model, the base is fixedly connected to two sides with clamping plates. The inside of the clamping plates is clamped to the outside of the bottom end of the lower mold. The inside of each clamping plate is threaded with a mounting bolt. The clamping plates provide lateral positioning of the bottom end of the lower mold. The threaded locking of the mounting bolts further strengthens the fixation, ensuring a stable connection between the lower mold and the base and preventing displacement during stamping.

[0013] As a further embodiment of this utility model, limiting posts are fixedly connected to both sides of the top surface of the base. A sleeve post is sleeved on the outside of the limiting post. The top surface of the sleeve post is fixedly connected to both sides of the bottom surface of the stamping plate. The setting of the limiting post and the sleeve post sleeved together provides precise guidance for the lifting and lowering of the stamping plate, limits the deviation, and enhances the structural stability during the stamping process, thus ensuring the stamping accuracy.

[0014] This utility model provides a scratch-resistant precision stamping die for automotive parts, which has the following beneficial effects: 1. This scratch-resistant precision automotive parts stamping die features an anti-scratch mechanism. During stamping, elastic pillars at both ends of the lower die's top surface provide elastic support, reducing scratches. An anti-scratch pad is also installed in the middle of the lower die. This pad reduces friction between the upper and lower dies, thus mitigating scratches. Positioning pillars on both sides of the lower die's top surface insert into the upper die during stamping, maintaining a stable stamping position and further reducing scratches caused by stamping deviations. This design achieves both elastic buffering to reduce rigid contact and wear-resistant materials to reduce frictional damage, thereby ensuring the surface quality of the parts and the lifespan of the die. It also prevents scratches caused by collisions or friction, which could lead to a decrease in the precision of the lower die's top surface and affect the surface quality of the parts.

[0015] 2. This scratch-resistant precision automotive parts stamping die, through the design of the replacement mechanism, allows for die replacement when the device needs to be used for stamping. On both sides of the bottom surface of the stamping plate, there are slots that allow the connecting rod to carry the upper die inside. Furthermore, a fixing frame is attached below the upper die, resting against the bottom surface of the upper die. Front and rear baffles are secured to the front and rear surfaces of the upper die. Then, fixing bolts and front fixing bolts are tightened from all four sides using threads, allowing for die replacement and disassembly. This device enables the replacement of suitable dies according to different part models, increasing the flexibility and practicality of the device, thereby improving production changeover efficiency and ensuring stamping accuracy and die lifespan. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the anti-scratch mechanism of this utility model; Figure 3 This is a schematic diagram of the replacement mechanism of this utility model; Figure 4 This is a schematic diagram of the left side of the device of this utility model.

[0017] In the diagram: 1. Base; 2. Lower mold; 3. Anti-scratch mechanism; 301. Positioning post; 302. Elastic post; 303. Anti-scratch pad; 4. Upper mold; 5. Replacement mechanism; 501. Connecting rod; 502. Fixing frame; 503. Fixing bolt; 6. Baffle; 7. Through hole; 8. Front fixing bolt; 9. Handle; 10. Slot; 11. Stamping plate; 12. Stamping hydraulic rod; 13. Base; 14. Clamping plate; 15. Mounting bolt; 16. Limiting post; 17. Sleeve post. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the 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 scope of protection of the present utility model. Example

[0019] Please see Figures 1 to 4This utility model provides a technical solution: a scratch-resistant precision automotive parts stamping die, including a base 1, with clamping plates 14 fixedly connected to both sides of the base 1. The interior of the clamping plates 14 is clamped to the outside of the bottom end of the lower die 2. The interior of each clamping plate 14 is threaded with mounting bolts 15. The clamping plates 14 provide lateral limiting for the bottom end of the lower die 2, and the threaded locking of the mounting bolts 15 further strengthens the fixation, ensuring a stable connection between the lower die 2 and the base 1 and preventing displacement during stamping. The lower die 2 is mounted on the top surface of the base 1, and anti-scratch mechanisms 3 are provided on both sides of the top surface of the lower die 2. An upper die 4 is mounted above the lower die 2, and replacement mechanisms 5 are fixedly connected to the left and right sides of the upper die 4. The anti-scratch mechanism 3 includes positioning pins 301 on both sides of the top surface of the lower die 2, elastic pins 302 installed at the front and rear ends of the top surface of the lower die 2, and mounting bolts 302 around the top center of the lower die 2. Equipped with anti-scratch pads 303, the replacement mechanism 5 includes connecting rods 501 fixedly connected to the left and right sides of the upper mold 4. The top surface of the connecting rods 501 is fitted with a slot 10, and a stamping plate 11 is provided on the outside of the slot 10. The connection between the slot 10 and the connecting rods 501 achieves precise alignment between the stamping plate 11 and the structure below, and provides a stable connection base for both, facilitating quick assembly and force transmission. The bottom surface of the upper mold 4 is fitted with a fixing frame 502 around its perimeter. Fixing bolts 503 penetrate through the inside of both sides of the fixing frame 502. The front and rear ends of the fixing frame 502 are fixedly connected with baffles 6. The left and right sides of the baffles 6 have through holes 7. The baffles 6 limit the front and rear movement of the internal components of the fixing frame 502, preventing them from falling off or shifting. The through holes 7 on both sides provide a passage for the connecting parts, facilitating the assembly and fixing of the fixing frame 502 with other structures. Furthermore, a front fastener 8 runs through the inside of the perforation 7, and a handle 9 is fixedly connected to the middle part of the two front fasteners 8. The front fasteners 8 are used to lock the fixing frame 502 to other structures. The middle handle 9 facilitates the manual and quick installation and removal of the front fasteners 8 without the need for additional tools, thus improving the efficiency of disassembly and assembly. Furthermore, a stamping hydraulic rod 12 is installed inside each of the four corners of the stamping plate 11. A base 13 is fixedly connected to the bottom surface of the stamping hydraulic rod 12. The stamping hydraulic rod 12 provides power to the stamping plate 11 to realize the stamping action. The base 13 is fixed to the bottom of the stamping hydraulic rod 12 to ensure the stability and force balance during stamping and improve the stamping accuracy. Furthermore, limit posts 16 are fixedly connected to both sides of the top surface of the base 13. A sleeve post 17 is sleeved on the outside of the limit post 16. The top surface of the sleeve post 17 is fixedly connected to both sides of the bottom surface of the stamping plate 11. The setting of the limit post 16 and the sleeve post 17 sleeved together provides precise guidance for the lifting and lowering of the stamping plate 11, limits the deviation, and enhances the structural stability during the stamping process, thus ensuring the stamping accuracy.

[0020] In this invention, the working steps of the device are as follows: First step: When the mold is stamping, elastic pillars 302 that provide elastic support and reduce scratches are installed at both ends of the top face of the lower mold 2. Anti-scratch pads 303 are also set in the middle of the lower mold 2. The anti-scratch pads 303 reduce the contact friction between the upper mold 4 and the lower mold 2, thereby reducing scratches. The positioning pillars 301 on both sides of the top surface of the lower mold 2 are inserted into the interior of the upper mold 4 during the stamping process to keep the stamping position stable and further reduce scratches caused by stamping deviation. The second step: When the device needs to change the mold for stamping, the bottom surface of the stamping plate 11 is provided with slots 10 on both sides, which allow the connecting rod 501 to carry the upper mold 4 in the middle to be installed inside. However, a fixing frame 502 is also attached to the bottom of the upper mold 4. The fixing frame 502 is pressed against the bottom surface of the upper mold 4, and the baffles 6 on the front and rear sides are attached to the front and rear sides of the upper mold 4. Then, the fixing bolts 503 and the front fixing bolts 8 are tightened from the threads around the perimeter, and the mold can be replaced and disassembled.

[0021] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming. All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A scratch-resistant precision automotive parts stamping die, comprising a base (1), characterized in that: The base (1) has a lower mold (2) installed on its top surface. The lower mold (2) has anti-scratch mechanisms (3) on both sides of its top surface. The lower mold (2) has an upper mold (4) installed above it. The upper mold (4) has replacement mechanisms (5) fixedly connected to its left and right sides. The anti-scratch mechanism (3) includes positioning columns (301) on both sides of the top surface of the lower mold (2), elastic columns (302) are installed at the front and rear ends of the top surface of the lower mold (2), and anti-scratch pads (303) are installed around the top center of the lower mold (2). The replacement mechanism (5) includes connecting rods (501) fixedly connected to the left and right sides of the upper mold (4), and a fixing frame (502) is snapped around the bottom surface of the upper mold (4). Fixing bolts (503) pass through the inside of both sides of the fixing frame (502).

2. The anti-scratch precision automotive parts stamping die according to claim 1, characterized in that: The front and rear ends of the fixed frame (502) are fixedly connected with baffles (6), and the left and right sides of the baffles (6) are provided with through holes (7).

3. The anti-scratch precision automotive parts stamping die according to claim 2, characterized in that: The perforation (7) has a front fastener (8) running through it, and a handle (9) is fixedly connected to the middle part of the two front fasteners (8).

4. The anti-scratch precision automotive parts stamping die according to claim 1, characterized in that: The top surface of the connecting rod (501) is fitted with a slot (10), and a stamping plate (11) is provided on the outside of the slot (10).

5. A scratch-resistant precision automotive parts stamping die according to claim 4, characterized in that: The stamping plate (11) has four corners with internal stamping hydraulic rods (12), and the bottom surface of the stamping hydraulic rods (12) is fixedly connected to a base (13).

6. The anti-scratch precision automotive parts stamping die according to claim 1, characterized in that: The base (1) is fixedly connected to two sides of a clamping plate (14). The inside of the clamping plate (14) is clamped to the outside of the bottom end of the lower mold (2). The inside of the clamping plate (14) is threaded with a mounting bolt (15).

7. A scratch-resistant precision automotive parts stamping die according to claim 5, characterized in that: Limiting posts (16) are fixedly connected to both sides of the top surface of the base (13). A sleeve post (17) is sleeved on the outside of the limiting post (16). The top surface of the sleeve post (17) is fixedly connected to both sides of the bottom surface of the stamping plate (11).

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