An automatic folding device for automobile sheet metal parts
By designing an automatic folding device for automotive sheet metal parts with supporting, driving, and pushing mechanisms, the problem of poor material conveying convenience in existing devices has been solved, realizing automated loading and unloading of sheet metal parts and improving work efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG PRAISE AUTOMOBILE TECHNOLOGY CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-07-07
AI Technical Summary
Existing automotive sheet metal folding devices are inconvenient in terms of automatic material conveying, requiring manual loading and unloading, which increases labor intensity and reduces work efficiency and ease of use.
An automatic folding device is designed, comprising a support device, a drive device, a push device, an upper folding mold, and a lower folding mold. The drive device moves the support plate upward to transport the sheet metal part, the push device pushes the sheet metal part between the lower folding mold and the upper folding mold, the support device drives the upper mold to descend for folding processing, and the push device realizes automatic unloading. Combined with a conveyor belt and a guide trough, the material conveying convenience is improved.
It improves the convenience of automatic loading and unloading of sheet metal parts, reduces the labor intensity of personnel, and increases work efficiency.
Smart Images

Figure CN224463506U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of sheet metal bending devices, and in particular to an automatic bending device for automotive sheet metal parts. Background Technology
[0002] Automotive sheet metal parts are a major component of a car body, encompassing numerous parts such as the body shell, doors, hood, trunk lid, and fenders. In the manufacturing process of automotive sheet metal parts, the folding process is a crucial step. The quality of the folding directly affects the appearance quality and assembly precision of the sheet metal parts.
[0003] Currently, among existing folding devices, such as the patent with announcement number CN217941489U, this utility model discloses an automatic folding device for automotive sheet metal parts, including a support plate, a folding mechanism, a fixed frame, and clamping components. The support plate is located at the lower end of the inner wall of the fixed frame, the folding mechanism is located at the lower end of the upper inner wall of the fixed frame, and the clamping components are evenly distributed on the support plate and are symmetrically arranged.
[0004] However, it has been found in the use of existing folding devices that they are not very convenient for automatic material conveying, requiring manual loading and unloading operations, which increases labor intensity and reduces work efficiency and ease of use. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides an automatic folding device for automotive sheet metal parts that improves the convenience of automatic loading and unloading of sheet metal parts, increases work efficiency, and reduces the labor intensity of personnel.
[0006] This utility model discloses an automatic bending device for automotive sheet metal parts, comprising a base and a lower bending die, the lower bending die being mounted on the top of the base; it also includes a support device, a drive device, a push device, an upper bending die, a housing, and a support plate. The upper bending die is mounted on the support device, which drives the upper bending die to move up and down. The housing is located on the side of the base, and the top of the housing is flush with the top of the lower bending die. The support plate is slidably mounted inside the housing via the drive device. The push device is located on the housing and is used to push and convey the sheet metal parts. The sheet metal parts to be bent are stacked on the top of the support plate inside the housing, and driven by the drive device... The moving support plate moves upward, causing the stacked sheet metal parts to be conveyed upward. After the top sheet metal part moves out of the top of the box, the pushing device pushes the top sheet metal part towards the lower folding mold, thus moving it between the lower folding mold and the upper folding mold. Then, the support device drives the upper folding mold to move downward, so that the upper folding mold and the lower folding mold cooperate to fold the sheet metal part. After the sheet metal part is folded, the pushing device continues to push it to unload it. Then, the drive device drives the support plate to move upward one station, so that the next sheet metal part enters the pushing position for conveying and processing, improving the convenience of automatic loading and unloading of sheet metal parts and improving work efficiency.
[0007] Preferably, the driving device includes a support base, lead screws, a first motor, a first pulley, a second pulley, and belts. The support base is located at the bottom of the housing. Two sets of lead screws are rotatably mounted on the housing and the support base. A support plate is screwed onto the two sets of lead screws. The first motor is mounted on the outer wall of the support base. The first pulley is located on the output end of the first motor. Two sets of second pulleys are respectively mounted on the two sets of lead screws. Two belts are respectively fitted between the two sets of second pulleys and the first pulley. The first motor drives the first pulley to rotate, which in turn drives the two sets of lead screws to rotate via the two sets of second pulleys and the two sets of belts. This causes the two sets of lead screws to drive the support plate to move up and down, improving the convenience of conveying sheet metal parts by the support plate.
[0008] Preferably, the pushing device includes a guide seat, a cross arm, a rack, a gear, and a second motor. The guide seat is installed on the outer wall of the housing, the cross arm is slidably installed on the guide seat, the rack is set on the cross arm, the gear is rotatably installed on the guide seat and meshes with the rack, and the second motor is installed on the guide seat and connected to the gear. The second motor drives the gear to rotate, so that the gear drives the cross arm to slide through meshing with the rack, thereby pushing the uppermost sheet metal part to move and be conveyed.
[0009] Preferably, the support device includes a lifting frame and a cylinder. The lifting frame is mounted on the base, and the cylinder is mounted on the top of the lifting frame. The upper folding mold is slidably mounted on the lifting frame, and the moving end of the cylinder is connected to the upper folding mold. The cylinder drives the upper folding mold to move up and down, so that the upper folding mold and the lower folding mold cooperate to fold the sheet metal part.
[0010] Preferably, it also includes a conveyor belt, which is set at the top of the base on the side of the lower folding mold; the cross arm pushes the sheet metal parts processed on the lower folding mold onto the conveyor belt, so that the conveyor belt continues to transport the sheet metal parts, improving the convenience of unloading the sheet metal parts.
[0011] Preferably, it also includes a guide channel, which is set on the outer wall of the base; the guide channel collects and guides the sheet metal parts conveyed by the conveyor belt, improving the convenience of sheet metal part discharge.
[0012] Preferably, it also includes a limiting plate, which is set on the lower mold of the folding edge; the limiting plate guides and limits the conveyed sheet metal parts, thereby improving the accuracy of the conveying position of the sheet metal parts.
[0013] Preferably, it also includes a push plate, which is set at the end of the cross arm; by setting the push plate, the contact area between the cross arm and the sheet metal part is increased, thereby improving the effect of the cross arm in smoothly pushing the sheet metal part.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: Sheet metal parts that need to be folded are stacked on the top of the support plate inside the box. The support plate is driven to move upward by the drive device, so that the support plate moves and transports the stacked sheet metal parts upward. After the top sheet metal part moves out of the top of the box, the push device pushes the top sheet metal part toward the lower folding mold, so that it moves between the lower folding mold and the upper folding mold. Then, the support device drives the upper folding mold to move downward, so that the upper folding mold and the lower folding mold cooperate to fold the sheet metal part. After the sheet metal part is folded, the push device continues to push it to unload it. Then, the drive device drives the support plate to move upward one station, so that the next sheet metal part enters the push position for conveying and processing. This improves the convenience of automatic loading and unloading of sheet metal parts and improves work efficiency. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the isometric structure of this utility model;
[0016] Figure 2 This is a partial isometric structural diagram of the connection between the cross arm and the push plate, etc.
[0017] Figure 3 This is a partial isometric structural diagram of the connection between the guide seat and the cross arm, etc.
[0018] Figure 4 This is a partial isometric structural diagram showing the connection between the base and the lower folding mold, etc.
[0019] Figure 5 This is an isometric structural diagram showing the connection between the base and the conveyor belt, etc.
[0020] The following are labels in the attached diagram: 1. Base; 2. Lower folding mold; 3. Upper folding mold; 4. Box body; 5. Support plate; 6. Support seat; 7. Lead screw; 8. First motor; 9. First pulley; 10. Second pulley; 11. Belt; 12. Guide seat; 13. Cross arm; 14. Rack; 15. Gear; 16. Second motor; 17. Lifting frame; 18. Cylinder; 19. Guide channel; 20. Limiting plate; 21. Conveyor belt; 22. Push plate. Detailed Implementation
[0021] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.
[0022] Example 1
[0023] like Figures 1 to 5 As shown, this utility model discloses an automatic folding device for automotive sheet metal parts, including a base 1 and a lower folding mold 2, the lower folding mold 2 being mounted on the top of the base 1; it also includes a support device, a drive device, a push device, an upper folding mold 3, a housing 4, and a support plate 5. The upper folding mold 3 is mounted on the support device, which is used to drive the upper folding mold 3 to move up and down. The housing 4 is located on the side of the base 1, and the top of the housing 4 is flush with the top of the lower folding mold 2. The support plate 5 is slidably mounted inside the housing 4 via the drive device. The push device is located on the housing 4 and is used to push and transport the sheet metal parts.
[0024] like Figure 2 As shown, the drive device includes a support base 6, a lead screw 7, a first motor 8, a first pulley 9, a second pulley 10, and a belt 11. The support base 6 is located at the bottom of the housing 4. Two sets of lead screws 7 are rotatably mounted on the housing 4 and the support base 6. The support plate 5 is screwed onto the two sets of lead screws 7. The first motor 8 is mounted on the outer wall of the support base 6. The first pulley 9 is located on the output end of the first motor 8. Two sets of second pulleys 10 are respectively mounted on the two sets of lead screws 7. Two sets of belts 11 are respectively fitted between the two sets of second pulleys 10 and the first pulley 9.
[0025] In this embodiment, the sheet metal parts requiring folding are stacked on top of the support plate 5 inside the housing 4. The support plate 5 is moved upward by the drive device, which transports the stacked sheet metal parts upward. After the top sheet metal part moves out of the top of the housing 4, the push device pushes the top sheet metal part toward the lower folding mold 2, so that it moves between the lower folding mold 2 and the upper folding mold 3. Then, the support device drives the upper folding mold 3 downward, so that the upper folding mold 3 and the lower folding mold 2 cooperate to fold the sheet metal part. After the sheet metal part is folded, the push device continues to push it to unload it. Then, the drive device moves the support plate 5 upward by one station, so that the next sheet metal part enters the push position for conveying and processing, which improves the convenience of automatic loading and unloading of sheet metal parts and improves work efficiency.
[0026] Example 2
[0027] Based on Example 1, such as Figure 2 As shown, this utility model discloses an automatic folding device for automotive sheet metal parts. The pushing device includes a guide seat 12, a horizontal arm 13, a rack 14, a gear 15, and a second motor 16. The guide seat 12 is installed on the outer wall of the housing 4. The horizontal arm 13 is slidably installed on the guide seat 12. The rack 14 is disposed on the horizontal arm 13. The gear 15 is rotatably installed on the guide seat 12 and meshes with the rack 14. The second motor 16 is installed on the guide seat 12 and connected to the gear 15.
[0028] like Figure 4 As shown, the support device includes a lifting frame 17 and a cylinder 18. The lifting frame 17 is mounted on the base 1, the cylinder 18 is mounted on the top of the lifting frame 17, and the folding mold 3 is slidably mounted on the lifting frame 17. The moving end of the cylinder 18 is connected to the folding mold 3.
[0029] like Figure 1 As shown, it also includes a conveyor belt 21, which is disposed on the top of the base 1 on the side of the lower folding mold 2;
[0030] like Figure 1 As shown, it also includes a flow guide groove 19, which is disposed on the outer side wall of the base 1;
[0031] like Figure 1 As shown, it also includes a limiting plate 20, which is disposed on the lower folding mold 2;
[0032] like Figure 2 As shown, it also includes a push plate 22, which is disposed at the end of the cross arm 13;
[0033] In this embodiment, the first motor 8 drives the first pulley 9 to rotate, which in turn drives the two sets of lead screws 7 to rotate via two sets of second pulleys 10 and two sets of belts 11. The two sets of lead screws 7 drive the support plate 5 to move up and down, improving the convenience of the support plate 5 for conveying sheet metal parts. The second motor 16 drives the gear 15 to rotate, which in turn drives the cross arm 13 to slide through meshing with the rack 14. This allows the cross arm 13 to push the uppermost sheet metal part to move and be conveyed.
[0034] This utility model discloses an automatic folding device for automotive sheet metal parts. During operation, the sheet metal parts requiring folding are stacked on top of a support plate 5 inside a housing 4. A drive device moves the support plate 5 upwards, conveying the stacked sheet metal parts. Once the top sheet metal part is removed from the top of the housing 4, a pusher pushes it towards the lower folding mold 2, positioning it between the lower folding mold 2 and the upper folding mold 3. The support device then moves the upper folding mold 3 downwards, allowing it to cooperate with the lower folding mold 2 to fold the sheet metal part. After folding, the pusher continues to push the part out of the housing. The drive device then moves the support plate 5 upwards by one station, allowing the next sheet metal part to enter the pusher position for conveying and processing.
[0035] The first motor 8, the second motor 16, the cylinder 18, and the conveyor belt 21 of the automatic folding device for automotive sheet metal parts of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.
[0036] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. An automatic bending device for automotive sheet metal parts, comprising a base (1) and a bending lower mold (2), wherein the bending lower mold (2) is mounted on the top of the base (1); characterized in that, It also includes a support device, a drive device, a push device, an upper folding mold (3), a box body (4), and a support plate (5). The upper folding mold (3) is installed on the support device, which is used to drive the upper folding mold (3) to move up and down. The box body (4) is located on the side of the base (1), and the top of the box body (4) is flush with the top of the lower folding mold (2). The support plate (5) is installed inside the box body (4) by sliding up and down through the drive device. The push device is located on the box body (4) and is used to push and transport the sheet metal parts.
2. The automatic bending device for automotive sheet metal parts as described in claim 1, characterized in that, The drive device includes a support base (6), a lead screw (7), a first motor (8), a first pulley (9), a second pulley (10), and a belt (11). The support base (6) is located at the bottom of the housing (4). Two sets of lead screws (7) are rotatably mounted on the housing (4) and the support base (6). The support plate (5) is screwed onto the two sets of lead screws (7). The first motor (8) is mounted on the outer wall of the support base (6). The first pulley (9) is located on the output end of the first motor (8). Two sets of second pulleys (10) are respectively mounted on the two sets of lead screws (7). Two sets of belts (11) are respectively fitted between the two sets of second pulleys (10) and the first pulley (9).
3. The automatic bending device for automotive sheet metal parts as described in claim 1, characterized in that, The pushing device includes a guide seat (12), a cross arm (13), a rack (14), a gear (15), and a second motor (16). The guide seat (12) is installed on the outer wall of the housing (4). The cross arm (13) is slidably installed on the guide seat (12). The rack (14) is set on the cross arm (13). The gear (15) is rotatably installed on the guide seat (12) and meshes with the rack (14). The second motor (16) is installed on the guide seat (12) and connected to the gear (15).
4. The automatic bending device for automotive sheet metal parts as described in claim 1, characterized in that, The support device includes a lifting frame (17) and a cylinder (18). The lifting frame (17) is mounted on the base (1), and the cylinder (18) is mounted on the top of the lifting frame (17). The folding mold (3) is slidably mounted on the lifting frame (17), and the moving end of the cylinder (18) is connected to the folding mold (3).
5. The automatic bending device for automotive sheet metal parts as described in claim 1, characterized in that, It also includes a conveyor belt (21), which is set on the top of the base (1) on the side of the folding mold (2).
6. The automatic bending device for automotive sheet metal parts as described in claim 1, characterized in that, It also includes a flow guide groove (19), which is set on the outer wall of the base (1).
7. The automatic bending device for automotive sheet metal parts as described in claim 1, characterized in that, It also includes a limiting plate (20), which is set on the lower folding mold (2).
8. The automatic bending device for automotive sheet metal parts as described in claim 3, characterized in that, It also includes a push plate (22), which is located at the end of the cross arm (13).
Citation Information
Patent Citations
Automatic edge folding device for automobile sheet metal part
CN217941489U