Automobile sheet metal part edge folding device

By introducing adsorption holes and roller grooves into the sheet metal bending device, combined with an air pump and roller assembly, the problem of sheet metal parts shifting during processing is solved, enabling multi-specification adaptive clamping and high-precision bending, while reducing equipment costs.

CN224114940UActive Publication Date: 2026-04-14GAOJIN TIANJIN AUTOMOTIVE EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GAOJIN TIANJIN AUTOMOTIVE EQUIP CO LTD
Filing Date
2025-03-13
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing sheet metal bending devices suffer from reduced processing accuracy due to vibration or sheet metal part posture deviation during processing, and cannot adapt to the processing of sheet metal parts of various specifications.

Method used

The design incorporates suction holes and roller grooves on the bearing plate, combined with an air pump and roller assembly. It fixes sheet metal parts through negative and positive pressure, and uses an adjusting plate and slide to achieve adaptive clamping and positioning for different specifications. It also works with a stamping assembly to complete the folding operation.

Benefits of technology

It improves the precision and applicability of sheet metal processing, reduces equipment costs, and realizes the integrated design of sheet metal parts fixing and off-bed operation, avoiding sheet metal parts offset and damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an automobile sheet metal part edge folding device which comprises a bearing plate, an edge folding device and an edge folding device. The two sides of the bearing plate are provided with adjusting plates. The stamping assembly is located above the bearing assembly; a stabilizing block of the stamping assembly is fixedly arranged on a supporting frame, and a clamping position used for clamping a sheet metal part is formed between the stabilizing block and a bearing plate. A stamping block of the stamping assembly is movably arranged on the supporting frame, and a working position used for bending the sheet metal part is formed between the stamping block and the adjusting plate. The stamping device has the advantages that machining of sheet metal parts of different specifications is achieved through the adjusting plate, fixing and edge folding machining of the sheet metal parts are completed through the stamping assembly, deviation of the sheet metal parts to be subjected to edge folding is avoided, machining precision is improved, and the stamping device can adapt to machining scenes of the sheet metal parts of various specifications.
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Description

Technical Field

[0001] This utility model belongs to the field of sheet metal processing, and in particular relates to a bending device for automotive sheet metal parts. Background Technology

[0002] Folding devices for automotive sheet metal parts are widely used in the sheet metal processing stage of automobile manufacturing, especially in the production of parts such as body, doors, and roof. Their main function is to ensure that sheet metal parts fit tightly during assembly through folding operations, thereby improving the strength and stability of the structure.

[0003] In existing sheet metal bending devices, manual feeding and control of the position of the sheet metal part to be bent are often required. During the processing, due to the vibration of the device itself or the posture and shape of the sheet metal part to be bent, the sheet metal part to be bent may shift during the bending process, which will affect the processing accuracy. Furthermore, the existing device cannot adapt to the processing scenarios of sheet metal parts of various specifications. Utility Model Content

[0004] In view of this, the present invention aims to provide an edge-folding device for automotive sheet metal parts, in order to solve at least one of the above-mentioned technical problems.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0006] An edge-folding device for automotive sheet metal parts, comprising:

[0007] A support plate, on both sides of which are equipped with adjustment plates;

[0008] A stamping assembly, located above a load-bearing assembly;

[0009] The stabilizing block of the stamping assembly is fixed on the support frame, and a clamping position for clamping sheet metal parts is formed between the stabilizing block and the bearing plate.

[0010] The stamping block of the stamping assembly is movably mounted on the support frame, and a working position for bending sheet metal parts is formed between the stamping block and the adjusting plate.

[0011] Furthermore, the bearing plate has multiple adsorption holes on its end face near the stamping assembly, and a gas channel communicating with the adsorption holes is opened inside the bearing plate, and the gas channel is connected to an air pump.

[0012] Furthermore, the bearing plate has multiple roller grooves on its end face near the stamping assembly, and roller assemblies are disposed in the roller grooves. The roller assemblies include:

[0013] The roller base has an outer sidewall that fits against the inner sidewall of the roller groove, and an air cavity is formed between the bottom surface of the roller base and the inner wall of the roller groove.

[0014] A roller, which is rotatably connected to the end face of the roller base away from the roller groove.

[0015] Furthermore, the air cavity is connected to the gas channel, and a support column is fixedly provided on the bottom surface of the roller groove. The support column is pressed against the roller base, and the sum of the height of the roller assembly and the height of the support column is equal to the height of the roller groove.

[0016] Furthermore, the adjusting plate has a countersunk hole, and the bearing plate has a threaded hole corresponding to the countersunk hole. A countersunk bolt is provided in the countersunk hole, and one end of the countersunk bolt passes through the countersunk hole and is threaded to the inside of the threaded hole.

[0017] Furthermore, a shim is provided between the adjusting plate and the bearing plate, and the thickness of the shim corresponds to the processing specifications of the sheet metal part.

[0018] Furthermore, the support plate is fixed on the base, and the base has a pair of sliding grooves;

[0019] The two slides are located on the same side of the support plate. A slider is provided in the slide, and a threaded hole is opened on the slider. A fixing bolt is threaded into the threaded hole and the fixing bolt is pressed against the bottom surface of the slide.

[0020] A rotating shaft is fixed on the end face of the slider away from the slide groove, and a guide wheel corresponding to the bearing plate is rotatably connected to the rotating shaft.

[0021] Furthermore, the support frame includes uprights and horizontal columns, the uprights being fixed around the bearing plate, and the horizontal columns being fixedly connected to the end of the uprights away from the bearing plate.

[0022] The stabilizing block is fixedly connected to the power output end of the cylinder, and the cylinder housing is fixedly connected to the cross column.

[0023] Furthermore, the stamping block is fixedly connected to the power output end of the drive assembly, the drive assembly is fixedly connected to the end face of the moving plate near the bearing plate, and the moving plate is movably disposed on the end face of the cross column near the bearing plate.

[0024] Furthermore, sliding tracks are provided on both sides of the horizontal column, and the two sides of the movable plate are bent away from the bearing plate to form hooks corresponding to the sliding tracks, and the hooks are located inside the sliding tracks.

[0025] Compared with the prior art, the automotive sheet metal folding device of this utility model has the following advantages:

[0026] The adjustment plate enables the processing of sheet metal parts of different specifications. The stamping assembly is used to fix and fold the sheet metal parts, and the suction holes are used for auxiliary fixation. When the sheet metal parts are irregularly shaped and cannot be fixed by the stabilizing blocks, they can be fixed by the suction holes. The air intake channel connects the suction holes and the roller groove, realizing the integrated design of fixing and removing the sheet metal parts from the bed, reducing the cost of the equipment, and enabling the synchronous operation of the two functions without the need for electrical control. Attached Figure Description

[0027] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0028] Figure 1 This is a schematic diagram of the overall structure of the automotive sheet metal folding device according to an embodiment of the present utility model;

[0029] Figure 2 As described in the embodiments of this utility model Figure 1 Schematic diagram of the structure at point A in the middle;

[0030] Figure 3 This is a schematic diagram of the internal structure of the bearing plate according to an embodiment of the present utility model;

[0031] Figure 4 This is a partial structural diagram of the folding device described in an embodiment of the present utility model;

[0032] Figure 5 This is a partial structural diagram of the bearing plate described in an embodiment of the present utility model;

[0033] Figure 6 This is a schematic diagram of the slider structure described in an embodiment of the present utility model;

[0034] Figure 7 This is a schematic diagram of the roller assembly structure according to an embodiment of the present utility model;

[0035] Figure 8 This is a schematic diagram of the movable plate structure according to an embodiment of the present utility model.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1. Support plate; 101. Adsorption hole; 102. Gas channel; 103. Roller groove; 104. Support column; 105. Slide groove; 2. Adjusting plate; 3. Stamping assembly; 301. Stabilizing block; 302. Stamping block; 4. Support frame; 401. Vertical column; 402. Horizontal column; 403. Sliding track; 5. Roller assembly; 501. Roller base; 502. Roller; 6. Shim; 7. Slider; 701. Rotating shaft; 702. Guide wheel; 8. Moving plate. Detailed Implementation

[0038] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0039] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0042] An edge-folding device for automotive sheet metal parts, comprising:

[0043] A support plate 1, with adjusting plates 2 installed on both sides of the support plate 1;

[0044] The stamping assembly 3 is located above the bearing assembly;

[0045] The stabilizing block 301 of the stamping assembly 3 is fixed on the support frame 4, and a clamping position for clamping sheet metal parts is formed between the stabilizing block 301 and the bearing plate 1.

[0046] The stamping block 302 of the stamping assembly 3 is movably mounted on the support frame 4, and a working position for bending sheet metal parts is formed between the stamping block 302 and the adjusting plate 2.

[0047] The bearing plate 1 has multiple adsorption holes 101 on its end face near the stamping assembly 3. The bearing plate 1 has a gas channel 102 that communicates with the adsorption holes 101 and is connected to an air pump.

[0048] When the sheet metal part to be folded is fed into the device, the air pump starts to draw air. At this time, under the action of negative pressure, the sheet metal part is adsorbed onto the support plate 1, which realizes the initial fixation of the sheet metal part and avoids the displacement of the sheet metal part caused by slight vibration, thus improving the processing accuracy. Furthermore, when the sheet metal part is an irregular shape, it is not possible to clamp and fix the sheet metal part with the stabilizing block. In this case, it is necessary to increase the air volume so that the adsorption hole fixes the sheet metal part, thereby improving the processing applicability of the device.

[0049] The bearing plate 1 has multiple roller 502 grooves 103 on its end face near the stamping assembly 3. Roller 502 assemblies 5 are disposed within the roller 502 grooves 103, and each roller 502 assembly 5 includes:

[0050] The roller 502 base 501 has an outer side wall that fits against the inner side wall of the roller 502 groove 103, and an air cavity is formed between the bottom surface of the roller 502 base 501 and the inner wall of the roller 502 groove 103.

[0051] Roller 502 is rotatably connected to the end face of roller 502 base 501 away from roller 502 groove 103.

[0052] The air cavity is connected to the gas channel 102. A support column 104 is fixed on the bottom surface of the roller 502 groove 103. The support column 104 is pressed against the roller 502 base 501. The sum of the height of the roller 502 assembly 5 and the height of the support column 104 is equal to the height of the roller 502 groove 103.

[0053] After processing is completed, the air pump blows air. Under the action of positive pressure, the sheet metal part is no longer adsorbed on the support plate 1. Furthermore, the gas flows into the air cavity, providing upward pressure to the roller 502 base 501. At this time, under the action of pressure, the roller 502 base 501 moves upward, and the roller 502 lifts the sheet metal part. Under the action of the roller 502, the sheet metal part can be moved out more easily.

[0054] Furthermore, the height of roller 502 component 5 and the height of support column 104 are set to be equal to the height of roller 502 groove 103, ensuring that roller 502 will not squeeze the sheet metal part during processing, thus avoiding damage to the sheet metal part.

[0055] In some embodiments, a one-way valve is provided in the adsorption hole 101 to control the flow of air from the adsorption hole 101 to the gas channel 102. When the air pump draws in air, the one-way valve opens and the sheet metal part is adsorbed onto the support plate 1. When the air pump blows air, the one-way valve closes, the adsorption hole 101 no longer provides negative pressure, and at this time air flows into the air cavity, providing upward pressure to the roller 502 base 501.

[0056] The adjusting plate 2 has a countersunk hole, and the bearing plate 1 has a threaded hole corresponding to the countersunk hole. A countersunk bolt is provided in the countersunk hole, and one end of the countersunk bolt passes through the countersunk hole and is threaded to the inside of the threaded hole.

[0057] A shim 6 is provided between the adjusting plate 2 and the bearing plate 1, and the thickness of the shim 6 corresponds to the processing specifications of the sheet metal part.

[0058] The processing of sheet metal parts of different specifications was achieved by using shim 6.

[0059] The support plate 1 is fixed on the base, and the base has a pair of sliding grooves 105.

[0060] The two slides 105 are located on the same side of the bearing plate 1. A slider 7 is provided in the slide 105. The slider 7 has a threaded hole. A fixing bolt is threaded into the threaded hole. The fixing bolt is pressed against the bottom surface of the slide 105.

[0061] A rotating shaft 701 is fixed on the end face of the slider 7 away from the slide groove 105, and a guide wheel 702 corresponding to the bearing plate 1 is rotatably connected to the rotating shaft 701.

[0062] The two guide wheels 702 serve to position the sheet metal parts to be processed. The sheet metal parts move under the clamping of the guide wheels 702, ensuring the accuracy of processing. In addition, a scale is provided on the outside of the slide groove 105. The position of the guide wheels 702 is adjusted according to the scale, realizing precise control of the position of the sheet metal parts when entering the device.

[0063] The support frame 4 includes uprights 401 and horizontal columns 402. The uprights 401 are fixed around the bearing plate 1, and the horizontal columns 402 are fixedly connected to the end of the uprights 401 away from the bearing plate 1.

[0064] The stabilizing block 301 is fixedly connected to the power output end of the cylinder, and the cylinder housing is fixedly connected to the cross column 402.

[0065] During processing, the stabilizing block 301 presses down to fix the sheet metal part onto the bearing plate 1.

[0066] The stamping block 302 is fixedly connected to the power output end of the drive assembly, the drive assembly is fixedly connected to the end face of the movable plate 8 near the bearing plate 1, and the movable plate 8 is movably disposed on the end face of the cross column 402 near the bearing plate 1.

[0067] The stamping block 302 presses down to perform a bending operation on the sheet metal part. The part of the stamping block 302 adjacent to the sheet metal part is arc-shaped to avoid scratching the sheet metal part. The drive component can be a cylinder or any device that can realize axial movement, such as a servo cylinder.

[0068] The horizontal column 402 has sliding rails 403 on both sides. The two sides of the moving plate 8 are bent away from the bearing plate 1 to form hooks corresponding to the sliding rails 403. The hooks are located inside the sliding rails 403.

[0069] The position of the lower pressure block is adjusted according to the actual processing requirements.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

[0071] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bending device for automotive sheet metal parts, characterized in that, include: A support plate (1), on both sides of which adjustment plates (2) are installed; A stamping assembly (3) is located above the bearing assembly; The stabilizing block (301) of the stamping assembly (3) is fixed on the support frame (4), and a clamping position for clamping sheet metal parts is formed between the stabilizing block (301) and the bearing plate (1); The stamping block (302) of the stamping assembly (3) is movably mounted on the support frame (4), and a working position for bending sheet metal parts is formed between the stamping block (302) and the adjusting plate (2).

2. The automotive sheet metal bending device according to claim 1, characterized in that, The bearing plate (1) has multiple adsorption holes (101) on the end face near the stamping assembly (3), and a gas channel (102) communicating with the adsorption holes (101) is opened in the bearing plate (1), and the gas channel (102) is connected to the air pump.

3. The automotive sheet metal folding device according to claim 2, characterized in that, The bearing plate (1) has multiple roller (502) grooves (103) on its end face near the stamping assembly (3). Roller (502) assemblies (5) are disposed within the roller (502) grooves (103). Each roller (502) assembly (5) includes: Roller (502) base (501), the outer side wall of the roller (502) base (501) is in contact with the inner side wall of the roller (502) groove (103), and an air cavity is formed between the bottom surface of the roller (502) base (501) and the inner wall of the roller (502) groove (103); Roller (502) is rotatably connected to the end face of the roller (502) base (501) away from the roller (502) groove (103).

4. The automotive sheet metal bending device according to claim 3, characterized in that, The air cavity is connected to the gas channel (102), and a support column (104) is fixed on the bottom surface of the roller (502) groove (103). The support column (104) presses against the roller (502) base (501). The sum of the height of the roller (502) assembly (5) and the height of the support column (104) is equal to the height of the roller (502) groove (103).

5. The automotive sheet metal bending device according to claim 1, characterized in that, The adjusting plate (2) has a countersunk hole, and the bearing plate (1) has a threaded hole corresponding to the countersunk hole. A countersunk bolt is provided in the countersunk hole, and one end of the countersunk bolt passes through the countersunk hole and is threaded to the inside of the threaded hole.

6. The automotive sheet metal bending device according to claim 1, characterized in that, A gasket (6) is provided between the adjusting plate (2) and the bearing plate (1), and the thickness of the gasket (6) corresponds to the processing specifications of the sheet metal part.

7. The automotive sheet metal folding device according to claim 1, characterized in that, The support plate (1) is fixed on the base, and the base has a pair of sliding grooves (105); The two slides (105) are located on the same side of the bearing plate (1). A slider (7) is provided in the slide (105). A threaded hole is opened on the slider (7). A fixing bolt is threaded in the threaded hole and the fixing bolt is pressed against the bottom surface of the slide (105). A rotating shaft (701) is fixed on the end face of the slider (7) away from the slide groove (105), and a guide wheel (702) corresponding to the bearing plate (1) is rotatably connected to the rotating shaft (701).

8. The automotive sheet metal folding device according to claim 1, characterized in that, The support frame (4) includes uprights (401) and horizontal columns (402). The uprights (401) are fixed around the bearing plate (1), and the horizontal columns (402) are fixedly connected to the end of the uprights (401) away from the bearing plate (1). The stabilizing block (301) is fixedly connected to the power output end of the cylinder, and the cylinder housing is fixedly connected to the cross column (402).

9. The automotive sheet metal bending device according to claim 8, characterized in that, The stamping block (302) is fixedly connected to the power output end of the drive assembly, the drive assembly is fixedly connected to the end face of the moving plate (8) near the bearing plate (1), and the moving plate (8) is movably arranged on the end face of the cross column (402) near the bearing plate (1).

10. A bending device for automotive sheet metal parts according to claim 9, characterized in that, The horizontal column (402) has sliding rails (403) on both sides. The two sides of the moving plate (8) are bent away from the bearing plate (1) to form hooks corresponding to the sliding rails (403). The hooks are located inside the sliding rails (403).