Punching machine for forming automobile fender

By introducing hydraulic, buffering, and ejection mechanisms into the stamping press for forming automobile fenders, the problem of workpiece misalignment was solved, achieving high-precision forming and efficient production.

CN223718094UActive Publication Date: 2025-12-26TIANJIN HUATAO PLASTIC AUTO TRIMS CO LTD
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Patent Information

Application Number
CN202423118510.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-17
Publication Date
2025-12-26
Estimated Expiration
2034-12-17

AI Technical Summary

Technical Problem

When the mold is close to the workpiece, the existing stamping press for forming automobile fenders is prone to workpiece displacement, resulting in forming errors and mold wear, which increases production costs and time consumption.

Method used

A stamping press for forming automobile fenders was designed, comprising a hydraulic mechanism, a buffer mechanism, an ejection mechanism, and a shifting mechanism. Through structures such as a positioning plate and a rotating column, the stability and accuracy of the workpiece during processing are ensured, deviation is prevented, and the workpiece is easily shifted after processing.

Benefits of technology

It effectively prevents workpieces from shifting position during processing, ensures forming accuracy, reduces mold wear, improves production efficiency and output rate, and saves time and costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of production and processing of automobile parts, and discloses a punching machine for forming an automobile fender, which comprises an ejection mechanism, the ejection mechanism comprises two stress plates, the interiors of the two stress plates are rotatably connected with rotating columns, the exteriors of the rotating columns are rotatably connected to the two sides of the interior of a lower die plate, and the two sides of the interior of the lower die plate are connected with the lower die plate. And a sliding plate is slidably connected to the interior of the lower mold plate, an adjusting assembly used for adjusting is slidably connected to the exterior of the sliding plate, rectangular grooves are formed in the two sides of the top of the lower mold plate, and the interiors of the rectangular grooves are matched with the exterior of the alignment plate. According to the utility model, pressure is applied to the stress plate through the alignment plate, so that the stress plate can jack up the sliding plate, the design is convenient for positioning a processed object during processing, the accuracy of the processed object during processing is ensured, processing errors caused by position offset are prevented, and meanwhile, the processed object can be prevented from generating sputtering to cause harm.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile accessory production and processing, especially relates to a stamping machine for automobile fender forming. BACKGROUND

[0002] When the automobile fender is formed, a stamping machine for automobile fender forming is often used, which is a kind of industrial equipment specially designed for manufacturing automobile fender. The fender is a part of the automobile exterior, located around the front and rear wheels of the vehicle body, and plays a role in protecting the vehicle body and wheels, and also has an impact on the appearance and aerodynamic performance of the vehicle.

[0003] Usually, when the device is in use, the metal plate is placed on the lower die plate, the hydraulic mechanism is started, and the upper die plate is pressed down by the hydraulic cylinder to press the metal plate into the die. In the stamping process, the shape of the die forms the profile of the automobile fender, and after the forming is completed, the ejection mechanism acts to push the fender out of the die.

[0004] However, during the use of the device, many stamping machines often cause the workpiece to deviate during the process of moving the two dies closer to each other, as the stability of the processed object under the pressing force is not fully considered. This deviation not only affects the forming effect, but also causes size errors and shape inconsistencies in the finished product, and also causes wear and damage to the die, increasing production costs and time consumption. Therefore, a stamping machine for automobile fender forming is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a stamping machine for automobile fender forming, which aims to improve the problem of deviation of the processed object when the two dies are moved closer to each other in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A stamping machine for automobile fender forming, comprising a processing table, the top of the processing table is provided with a hydraulic mechanism, the bottom of the hydraulic mechanism is fixedly connected with an upper die plate, the inside of the processing table is provided with a buffer mechanism, the inner bottom wall of the processing table is fixedly connected with a lower die plate, the outside of the lower die plate is provided with a hollow groove, the inside of the hollow groove is provided with an ejection mechanism, the bottom of the upper die plate is fixedly connected with a positioning plate on both sides, and the outside of the positioning plate is fixedly connected with a pulling mechanism.

[0008] The ejection mechanism comprises two force plates, rotating columns are rotatably connected to the interiors of the two force plates, the rotating columns are rotatably connected to the interiors of the lower mold plate on both sides, a sliding plate is slidably connected to the interior of the lower mold plate, an adjusting assembly is slidably connected to the exterior of the sliding plate, rectangular grooves are formed in the top of the lower mold plate on both sides, and the interiors of the rectangular grooves are matched with the exterior of the alignment plate.

[0009] As a further description of the above technical solution:

[0010] The adjusting assembly comprises a torsion column, the torsion column is rotatably connected to the interior of the sliding plate, the exterior of the sliding plate is rotatably connected to the interior of the lower mold plate on both sides, sliding grooves are formed in the exterior of the sliding plate on both sides, and the exterior of the torsion column is slidably connected to the interior of the sliding groove.

[0011] As a further description of the above technical solution:

[0012] The hydraulic mechanism comprises a hydraulic cylinder, the exterior of the hydraulic cylinder is on the top of the machining table, a fixed frame is fixedly connected to the top of the machining table, the exterior of the hydraulic cylinder is in the interior of the fixed frame, and the bottom of the hydraulic cylinder is fixedly connected to the top of the upper mold plate.

[0013] As a further description of the above technical solution:

[0014] The buffer mechanism comprises a plurality of support columns, the exteriors of the plurality of support columns are fixedly connected to the inner bottom wall of the machining table, sliding blocks are slidably connected to the exteriors of the support columns, and the exteriors of the sliding blocks are fixedly connected to the exterior of the upper mold plate.

[0015] As a further description of the above technical solution:

[0016] The left and right sides of the upper mold plate are fixedly connected with expansion plates, the bottoms of the expansion plates are fixedly connected with connecting columns respectively, and the exteriors of the connecting columns are sleeved with buffer springs respectively.

[0017] As a further description of the above technical solution:

[0018] The pushing mechanism comprises two movable columns, the exteriors of the two movable columns are rotatably connected to the interior of the alignment plate, the exteriors of the two movable columns are fixedly connected with connecting plates respectively, a rotating plate is rotatably connected to the bottom of the connecting plate, and a fixed plate is rotatably connected to the bottom of the rotating plate.

[0019] As a further description of the above technical solution:

[0020] The bottom of the fixed plate is fixedly connected with a top plate, the inside of the top plate is rotationally connected with a limiting column, and the outside of the limiting column is rotationally connected with the inside of the alignment plate.

[0021] As further description of the above technical solution:

[0022] The two alignment plates are driven by the upper die plate to press down and press the stress plate through the inside of the rectangular groove, and under the action of the rotating column, the sliding plate can be lifted and slid out.

[0023] The utility model has the advantages of the following beneficial effects:

[0024] 1、The utility model discloses a stress plate is pressed by alignment plate, and the stress plate can lift the sliding plate, and the design is convenient for the positioning of the machined object during processing, ensures the accuracy during processing, prevents the processing error caused by position deviation, and can prevent the machined object from splashing and causing harm.

[0025] 2、The utility model discloses that the object after processing is moved by the top plate, can effectively avoid the workpiece after processing to adhere to the inside of equipment, improves the overall output rate of workpiece, and the design is convenient for the object after processing to move to the next procedure rapidly, further improves the efficiency of production flow, saves time cost. DRAWINGS

[0026] Figure 1 A three-dimensional schematic view of a punch press for automobile fender forming is provided for the utility model;

[0027] Figure 2 A structure schematic view of a hollow groove of a punch press for automobile fender forming is provided for the utility model;

[0028] Figure 3 A structure schematic view of a supporting column of a punch press for automobile fender forming is provided for the utility model;

[0029] Figure 4 A structure schematic view of a torsion column of a punch press for automobile fender forming is provided for the utility model;

[0030] Figure 5 A structure schematic view of a top plate of a punch press for automobile fender forming is provided for the utility model.

[0031] LEGEND:

[0032] 1, processing platform; 2, hydraulic cylinder; 3, fixed frame; 4, upper die plate; 5, support column; 6, sliding block; 7, expansion plate; 8, connecting column; 9, buffer spring; 10, lower die plate; 11, rectangular groove; 12, sliding plate; 13, stress plate; 14, rotating column; 15, hollow groove; 16, sliding groove; 17, torsion column; 18, alignment plate; 19, movable column; 20, connecting plate; 21, rotating plate; 22, fixed plate; 23, limiting column; 24, top plate. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0034] Referring to Figure 1 , Figure 2 and Figure 4The utility model provides an embodiment: a kind of stamping machine for automobile wing board forming, including processing table 1, the top of processing table 1 is provided with hydraulic mechanism, hydraulic mechanism includes hydraulic cylinder 2, provide stable telescoping by the pressure change of hydraulic oil, the outside of hydraulic cylinder 2 is in the top of processing table 1, the top of processing table 1 is fixedly connected with fixed frame 3, so that it keeps stable during operation, avoid structural failure due to vibration or impact, the outside of hydraulic cylinder 2 is in the inside of fixed frame 3, the bottom of hydraulic cylinder 2 is fixedly connected in the top of upper die plate 4, the bottom of hydraulic mechanism is fixedly connected with upper die plate 4, the bottom of upper die plate 4 is simultaneously provided with recess on both sides, upper die plate 4 is the component that directly exerts pressure during stamping process, to realize the accurate forming of material to be processed, the inside of processing table 1 is provided with buffer mechanism, buffer mechanism includes multiple support columns 5, the outside of multiple support columns 5 is fixedly connected in the inner bottom wall of processing table 1, the outside of support column 5 is slidably connected with sliding block 6, support column 5 and sliding block 6 constitute, for slow down mechanical impact and vibration caused during buffering process, the outside of sliding block 6 is fixedly connected in the outside of upper die plate 4, the left and right sides of upper die plate 4 are fixedly connected with expansion plate 7, provide additional connecting space, the bottom of expansion plate 7 is fixedly connected with connecting column 8 respectively, the outside of connecting column 8 is respectively sleeved with buffer spring 9, the design of connecting column 8 makes that in stamping process, the pressure of upper die plate 4 can be effectively spread on buffer spring 9, buffer spring 9 can absorb some excess energy, avoid mechanical damage, the inner bottom wall of processing table 1 is fixedly connected with lower die plate 10, and the role is to form die together with upper die plate 4, for forming raw material, the outside of lower die plate 10 is provided with hollow groove 15 on both sides, to better make other structures work, the inside of hollow groove 15 is provided with ejection mechanism, the outside of alignment plate 18 is fixedly connected with actuating mechanism;

[0035] The ejection mechanism comprises two force plates 13, the inside of which is rotatably connected with a rotating column 14, which prevents the force plate 13 from deviating when rotating, and the bottom of the upper die plate 4 is fixedly connected with a positioning plate 18 on both sides, which can change the angle of the force plate 13 by pressing down, the outside of the rotating column 14 is rotatably connected with the inside of the lower die plate 10 on both sides, the inside of the lower die plate 10 is slidably connected with a sliding plate 12, which can slide out under the action of the force plate 13, the outside of the sliding plate 12 is slidably connected with an adjusting assembly for adjusting, which comprises a torsion column 17, the outside of which is rotatably connected with the inside of the sliding plate 12, the outside of the sliding plate 12 is rotatably connected with the inside of the lower die plate 10 on both sides, the outside of the sliding plate 12 is provided with a sliding groove 16 on both sides, which can prevent the 12 from deviating when sliding under the action of the torsion column 17, and the sliding groove 16 can provide good sliding performance for the rotating column 14, the outside of the torsion column 17 is slidably connected with the inside of the sliding groove 16, the top of the lower die plate 10 is provided with a rectangular groove 11 on both sides, the inside of which is matched with the outside of the positioning plate 18, the two positioning plates 18 can be pressed through the inside of the rectangular groove 11 under the action of the upper die plate 4, and the force plate 13 can be pressed, and the sliding plate 12 can be lifted and slid out under the action of the rotating column 14.

[0036] Referring to Figure 3 and Figure 5 , the dial mechanism comprises two movable columns 19, the outside of which is rotatably connected with the inside of the positioning plate 18, the outside of the two movable columns 19 is fixedly connected with a connecting plate 20, the movable column 19 is mainly used for connecting the connecting plate 20 and allowing rotation, the bottom of the connecting plate 20 is rotatably connected with a rotating plate 21, which can rotate while providing good support effect, the bottom of the fixed plate 22 is fixedly connected with a top plate 24, which is designed to facilitate the dialing of the object that has been punched to prevent sticking to the top of the lower die plate 10, the bottom of the rotating plate 21 is rotatably connected with a fixed plate 22, which facilitates the connection of the top plate 24 with other structures, the inside of the top plate 24 is rotatably connected with a limiting column 23, which facilitates the rotation of the top plate 24, the outside of the limiting column 23 is rotatably connected with the inside of the positioning plate 18, which can be closed and slid into the inside of the rectangular groove 11 when matched with the rectangular groove 11 under the action of the limiting column 23.

[0037] Working principle: first, the hydraulic cylinder 2 on the top of the processing platform 1 by the pressure change of hydraulic oil retraction, exert necessary pressure on the upper die plate 4. At this time, the upper die plate 4 and the lower die plate 10 constitute a set of mold, the gap between the two provides a forming space for the material to be processed. With the lower pressure of the upper die plate 4, the material to be processed is clamped and gradually deformed, and the precise forming is realized through the corresponding processing technology. In the stamping process, the combination of support column 5 and sliding block 6 constitutes a buffer mechanism, which can effectively slow down the mechanical impact and vibration caused by stamping, and protect the stability of the equipment. The sliding block 6 is fixed outside the upper die plate 4, which ensures that the upper die plate 4 is well guided and supported when moving. At the same time, the design of the expansion plate 7 and the connecting column 8 provides additional support and connection space for the workpiece, so that the pressure of the upper die plate 4 can be effectively transmitted to the connecting column 8, and the excess energy can be absorbed by the buffer spring 9 set, avoiding damage to the overall structure. When the ejection mechanism starts to work, the two force plates 13 are inclined by pressing the alignment plate 18, combined with the action of the rotating column 14, gradually pushing the sliding plate 12 out. The sliding plate 12 slides in the lower die plate 10, ensuring the correct movement of the force plate 13. The sliding plate 12 can position the workpiece being processed, prevent the workpiece from splashing during processing, and adjust the torsion column 17 in the adjusting assembly to ensure that it does not deviate. The design of the rectangular groove 11 ensures that the alignment plate 18 is pressed correctly, so that the stability and accuracy of the force plate 13 during the entire directional movement can be maintained.

[0038] When the hydraulic mechanism starts to rise after the pressing is completed, the rotating plate 21 starts to rotate with the rotation of the bottom of the connecting plate 20, providing stable support to make the subsequent movement of the fixed plate 22 and the top plate 24 more smooth. The bottom of the fixed plate 22 is fixedly connected with the top plate 24, ensuring that the top plate 24 does not shift during work, thereby effectively performing the subsequent actuation action. The top plate 24 is designed to be adaptable, which can actuate the formed workpiece after stamping to prevent it from adhering to the top of the lower die plate 10.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features, as long as they are within the spirit and principles of the present application. Any modification, equivalent substitution, improvement, etc. made within the scope of the present application shall be included in the protection scope of the present application.

Claims

1. A press machine for forming a fender of an automobile, comprising a processing table (1), characterized in that: The top of the processing table (1) is provided with a hydraulic mechanism, the bottom of the hydraulic mechanism is fixedly connected with an upper die plate (4), the inside of the processing table (1) is provided with a buffer mechanism, the inner bottom wall of the processing table (1) is fixedly connected with a lower die plate (10), the outside of the lower die plate (10) is provided with a hollow groove (15), the inside of the hollow groove (15) is provided with an ejection mechanism, the bottom of the upper die plate (4) is fixedly connected with a positioning plate (18) on both sides, and the outside of the positioning plate (18) is fixedly connected with a toggle mechanism. The ejection mechanism comprises two stress plates (13), the inside of the two stress plates (13) is rotatably connected with a rotating column (14), the outside of the rotating column (14) is rotatably connected with the inside of the lower die plate (10) on both sides, the inside of the lower die plate (10) is slidably connected with a sliding plate (12), the outside of the sliding plate (12) is slidably connected with an adjusting assembly for adjusting, the top of the lower die plate (10) is provided with a rectangular groove (11) on both sides, and the inside of the rectangular groove (11) is matched with the outside of the positioning plate (18).

2. The press machine for forming a fender of an automobile according to claim 1, characterized in that: The adjusting assembly comprises a torsion column (17), the outside of the torsion column (17) is rotatably connected with the inside of the sliding plate (12), the outside of the sliding plate (12) is rotatably connected with the inside of the lower die plate (10) on both sides, the outside of the sliding plate (12) is provided with a sliding groove (16) on both sides, and the outside of the torsion column (17) is slidably connected with the inside of the sliding groove (16).

3. The press machine for forming a fender of an automobile according to claim 1, characterized in that: The hydraulic mechanism comprises a hydraulic cylinder (2), the outside of the hydraulic cylinder (2) is on the top of the processing table (1), the top of the processing table (1) is fixedly connected with a fixed frame (3), the outside of the hydraulic cylinder (2) is in the inside of the fixed frame (3), and the bottom of the hydraulic cylinder (2) is fixedly connected with the top of the upper die plate (4).

4. The press machine for forming a fender of an automobile according to claim 1, characterized in that: The buffer mechanism comprises a plurality of supporting columns (5), the outside of the plurality of supporting columns (5) is fixedly connected with the inner bottom wall of the processing table (1), the outside of the supporting column (5) is slidably connected with a sliding block (6), and the outside of the sliding block (6) is fixedly connected with the outside of the upper die plate (4).

5. The press machine for forming a fender of an automobile according to claim 1, characterized in that: The left and right sides of the upper die plate (4) are fixedly connected with expansion plates (7), the bottoms of the expansion plates (7) are respectively fixedly connected with connecting columns (8), and the outside of the connecting column (8) is respectively sleeved with a buffer spring (9).

6. The press machine for forming a fender of an automobile according to claim 1, characterized in that: The toggle mechanism comprises two movable columns (19), the outside of the two movable columns (19) is rotatably connected with the inside of the positioning plate (18), the outside of the two movable columns (19) is respectively fixedly connected with a connecting plate (20), the bottom of the connecting plate (20) is rotatably connected with a rotating plate (21), and the bottom of the rotating plate (21) is rotatably connected with a fixed plate (22).

7. The press machine for forming a fender of an automobile according to claim 6, characterized in that: The bottom of the fixed plate (22) is fixedly connected with a top plate (24), the inside of the top plate (24) is rotatably connected with a limiting column (23), and the outside of the limiting column (23) is rotatably connected with the inside of the positioning plate (18).

8. The press machine for forming a fender of an automobile according to claim 1, characterized in that: The upper die plate (4) drives two alignment plates (18) to press the force receiving plate (13) through the rectangular grooves (11), and the rotating column (14) rotates to lift the sliding plate (12) and slide it out.