Automatic edge folding device for automobile sheet metal part
By combining a three-axis gantry robot and a suction cup manipulator, the precise folding of large metal sheets is achieved automatically, solving the problem of inconvenience in manual operation and improving processing efficiency and accuracy.
Patent Information
- Application Number
- CN202520187937.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-06
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-02-06
AI Technical Summary
Existing bending machines are inconvenient to operate because manual handling is cumbersome and precise feeding is difficult when processing large metal sheets.
A three-axis gantry robot drives a suction cup manipulator to grasp and rotate the sheet metal, automatically feeding it into a bending machine for processing. Combined with a PLC logic controller, intelligent edge bending operation is achieved.
It enables automated folding of large metal sheets, improving operational efficiency and accuracy while reducing the tediousness and errors of manual handling.
Smart Images

Figure CN223789312U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bending machine technology, specifically to an automatic bending device for automotive sheet metal parts. Background Technology
[0002] A bending machine is a type of metal processing machinery primarily used to plastically deform metal sheets, strips, tubes, or other metal profiles under pressure, thereby forming specific angles and shapes. Bending machines are widely used in manufacturing, particularly in metal structures, shipbuilding, automotive, aerospace, construction, furniture, and many other industries, where they are indispensable equipment.
[0003] Most existing bending machines perform edge bending manually. This method is frequently used for bending small sheet metal parts, but when the sheet metal is large, manual handling becomes cumbersome. Furthermore, since the sheet metal is typically metal, longer sheets have good flexibility, and manual handling only allows the hands to grasp a portion of the edge, easily leading to bending. The bending operation is also inconsistent with the accuracy of the bending machine's feed inlet. Therefore, we propose an automatic edge bending device for automotive sheet metal parts. Utility Model Content
[0004] This utility model provides an automatic bending device for automotive sheet metal parts, which has the advantage of using a three-axis gantry robot to drive the sheet metal into the bending machine in sequence, so that the sheet metal is automatically bent, thus solving the problems mentioned in the background art.
[0005] The technical solution of this utility model is implemented as follows: an automatic bending device for automotive sheet metal parts is designed, including a three-axis gantry robot. A bending machine is located on one side of the three-axis gantry robot. A processing platform is horizontally provided on one side of the bending machine. The processing platform corresponds to the feed port of the bending machine. A mounting platform is horizontally provided at the bottom of the free end of the three-axis gantry robot. A drive device is provided at the top of the mounting platform. A suction cup manipulator connected to the drive device is provided below the mounting platform. The drive device drives the suction cup manipulator to rotate.
[0006] Preferably, the drive device includes a motor bracket mounted on the top of the mounting platform, a vertically downward drive motor mounted on the motor bracket, the drive motor shaft being coaxially connected to the drive shaft, the drive shaft extending below the mounting platform and being rotatably connected to the mounting platform, and a suction cup robot arm mounted below the drive shaft.
[0007] Preferably, one end of the three-axis truss robot extends outside the bending machine, and a plate stacking area and a palletizing area are provided below the three-axis truss robot outside the bending machine.
[0008] Preferably, the bending machine includes a machine body. A vertically downward first telescopic mechanism is installed on the top of the machine body facing the processing platform. The bottom of the first telescopic mechanism is vertically connected to a first horizontal frame. An upper clamping seat is provided below the first horizontal frame. A corresponding lower clamping seat is provided parallel below the upper clamping seat. The lower clamping seat is installed on the machine body, and the top of the lower clamping seat is flush with the top of the processing platform. A bending cutter is provided parallel to the side of the lower clamping seat away from the processing platform. The bottom of the bending cutter is installed on a second horizontal frame. The second horizontal frame is parallel to the first horizontal frame. The bottom of the second horizontal frame is connected to the second telescopic mechanism. The second telescopic mechanism is perpendicular to the second horizontal frame, and its lower end is installed on a support frame. Both ends of the support frame are installed inside the machine body. The second telescopic mechanism drives the bending cutter to move upward. In the initial state, the height of the top surface of the bending cutter does not exceed the height of the top surface of the lower clamping seat.
[0009] Preferably, the two ends of the first horizontal frame are slidably mounted on the first guide rail via sliders, and the first guide rail is perpendicular to the lower clamping seat and is respectively installed on both sides of the machine body.
[0010] Preferably, the two ends of the second horizontal frame are slidably mounted on the second guide rail by sliders, and the second guide rail is perpendicular to the second horizontal frame and is installed on both sides inside the machine body.
[0011] Preferably, it also includes a control cabinet, which contains a controller that is connected to the three-axis gantry robot, the suction cup manipulator, the drive motor, the first telescopic mechanism, and the second telescopic mechanism.
[0012] Compared with the prior art, this utility model allows a three-axis gantry robot to drive a suction cup manipulator to grasp the sheet metal and transport it to the processing platform. The suction cup manipulator can rotate 360 degrees under the drive of the motor, allowing the sheet metal to be easily rotated. Moreover, the three-axis gantry robot can drive the suction cup manipulator to move into the bending machine, thereby bending the sheet metal into shape according to the bending sequence. The operation is simple and convenient. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a structural schematic diagram of one side of the present invention.
[0015] Figure 2 This is a schematic diagram of the structure on the other side of this utility model.
[0016] Figure 3 This is a schematic diagram of the front structure of the folding machine of this utility model.
[0017] Figure 4 This is a schematic diagram of the rear structure of the folding machine of this utility model.
[0018] Figure 5 This is a schematic diagram of the structure of the drive device of this utility model. Figure 1 .
[0019] Figure 6 This is a schematic diagram of the structure of the drive device of this utility model. Figure 2 .
[0020] Figure 7 This is the front view of the present utility model.
[0021] In the diagram: 1. Three-axis gantry robot; 2. Drive motor; 3. Motor bracket; 4. Suction cup manipulator; 5. Mounting platform; 6. Reinforcing legs; 7. Processing platform; 8. Second telescopic mechanism; 9. Support frame; 10. Body; 11. Upper clamping seat; 12. Bending cutter; 13. Lower clamping seat; 14. First guide rail; 15. First horizontal frame; 16. First telescopic mechanism; 17. Second guide rail; 18. Second horizontal frame; 19. Ventilation slip ring; 20. Drive shaft; 21. Base; 22. Sheet metal stacking area; 23. Palletizing area; 24. Control cabinet. Detailed Implementation
[0022] The technical solution of this utility model will be clearly and completely described below with reference to its embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0023] Reference Figures 1 to 7 This utility model provides a technical solution: an automatic folding device for automotive sheet metal parts, including a three-axis gantry robot 1. The three-axis gantry robot 1 is in the shape of a rectangular frame, and its bottom is mounted on a base 21.
[0024] This application also includes a folding machine located on one side of the three-axis gantry robot 1, such as... Figure 1 and Figure 2 As shown, a processing platform 7 is horizontally provided on one side of the bending machine, and the processing platform 7 is used to place the sheet metal to be bent.
[0025] like Figure 3 and Figure 4As shown, the specific structure of the folding machine includes a body 10. The bottom of the body 10 is set on a base. The body 10 is also connected to the frame of the three-axis gantry robot 1, which makes the body more stable. A vertically downward first telescopic mechanism 16 is installed on the top of the side of the body 10 facing the processing platform 7. The bottom of the first telescopic mechanism 16 is vertically connected to the first horizontal frame 15. An upper pressing seat 11 is provided below the first horizontal frame 15. The two ends of the first horizontal frame 15 are slidably set on the first guide rail 14 by sliders. The first guide rail 14 is perpendicular to the lower pressing seat 13 and is installed on both sides of the body 10. When the first telescopic mechanism 16 extends and retracts, it can drive the first horizontal frame 15 and the upper pressing seat 11 to move up and down.
[0026] Next, a corresponding lower pressure seat 13 is provided parallel below the upper pressure seat 11. The lower pressure seat 13 is installed on the machine body 10. When the upper pressure seat 11 descends, it is finally placed on the lower pressure seat 13, and the two are seamlessly stacked together.
[0027] It should be noted that the feed inlet of the bending machine is between the lower clamping seat 13 and the upper clamping seat 11. The processing platform 7 corresponds to the feed inlet of the bending machine. Specifically, the top of the lower clamping seat 13 is flush with the top of the processing platform 7. During processing, the top of the processing platform is used to place the board, and the edge of the board must be placed on the top of the lower clamping seat 13 and then pressed by the upper clamping seat 11.
[0028] Furthermore, such as Figure 4 and Figure 7 As shown, a bending cutter 12 is arranged parallel to the side of the lower clamping seat 13 away from the processing platform 7. The bottom of the bending cutter 12 is mounted on the second horizontal frame 18, which is parallel to the first horizontal frame 15. The bottom of the second horizontal frame 18 is connected to the second telescopic mechanism 8, which is perpendicular to the second horizontal frame 18 and whose lower end is mounted on the support frame 9. Both ends of the support frame 9 are installed inside the machine body 10. Figure 4 As shown, the two ends of the second horizontal frame 18 are respectively slidably mounted on the second guide rail 17 by sliders. The second guide rail 17 is perpendicular to the second horizontal frame 18 and is respectively installed on both sides inside the machine body 10. When the second telescopic mechanism 8 extends and retracts, it drives the bending cutter 12 to move upward. In the initial state, the height of the top surface of the bending cutter 12 does not exceed the height of the top surface of the lower pressing seat 13.
[0029] It should also be noted that there is a certain gap between the bending cutter 12 and the lower clamping seat 13. This gap is sufficient to bend the edge of the plate clamped between the upper clamping seat 11 and the lower clamping seat 13, so as to avoid the bending cutter 12 and the lower clamping seat 13 being in close contact, which would cause the bending cutter 12 to cut the plate.
[0030] Furthermore, such as Figure 1As shown, a mounting platform 5 is horizontally positioned at the bottom of the free end of the three-axis gantry robot 1, and a drive unit is located on the top of the mounting platform 5. Figure 5 and Figure 6 As shown, the drive unit includes a motor bracket 3 mounted on the top of the mounting platform 5. A vertically downward drive motor 2 is mounted on the motor bracket 3. The rotating shaft of the drive motor 2 is coaxially connected to a drive shaft 20. The drive shaft 20 extends below the mounting platform 5 and is rotatably connected to the mounting platform 5.
[0031] Below the mounting platform 5 is a suction cup robot 4 connected to a drive unit. The drive unit rotates the suction cup robot 4, such as... Figure 5 As shown, specifically, the suction cup robotic arm 4 is mounted below the drive shaft 20.
[0032] The suction cup robot 4 is cross-shaped or star-shaped, which increases the gripping area of the suction cup robot 4. Because the suction cup robot 4 rotates 360 degrees under the drive motor 2 during operation, in order to supply air to the suction cup robot 4, a ventilation slip ring 19 is coaxially provided below the drive shaft 20. Specifically, the stator of the ventilation slip ring 19 is fixed below the mounting platform 5, and the rotor of the ventilation slip ring 19 is coaxially mounted on the drive shaft 20, so that it rotates with the drive shaft 20. Then, the interface on the stator is connected to the external air source, and the interface on the rotor is connected to the suction cup robot 4 through a conduit.
[0033] Based on the above embodiments, this application also includes a control cabinet 24, which is equipped with a controller. The controller is a PLC logic controller or a host. The controller is connected to the three-axis gantry robot 1, the suction cup manipulator 4, the drive motor 2, the first telescopic mechanism 16, and the second telescopic mechanism 8 respectively. The controller can control each component to operate according to the set route, so that the whole device can achieve intelligent control.
[0034] like Figure 1 and Figure 2 As shown, one end of the three-axis gantry robot 1 extends outside the bending machine. Below the three-axis gantry robot 1 outside the bending machine, there is a sheet metal stacking area 22 and a stacking area 23. The sheet metal to be bent is stacked at the sheet metal stacking area 22, and the stacking area 23 is used to stack the finished products. The specific operation process is as follows:
[0035] 1. First, stack the boards at the board stacking point 22. The three-axis gantry robot 1 drives the suction cup robot 4 to move above the boards, and then the suction cup robot 4 descends to grab the boards.
[0036] 2. The sheet material is transported to the processing platform 7. At this time, the suction cup robot 4 is not separated from the sheet material. Since the three-axis gantry robot 1 has degrees of freedom in the up-down, forward-backward, and left-right directions, the robot can reach any position on the processing platform 7. Therefore, the three-axis gantry robot 1 can drive the suction cup robot 4 to grasp the sheet material and move it between the upper clamping seat 11 and the lower clamping seat 13. In addition, the drive motor 2 can drive the suction cup robot to rotate 360 degrees, giving the sheet material an additional degree of freedom of horizontal rotation.
[0037] 3. When the plate is moved towards the upper clamping seat 11 and the lower clamping seat 13, the length of the plate that is exposed outside the lower clamping seat 13 is the folding length. Therefore, after the upper clamping seat 11 and the lower clamping seat 13 clamp the edge of the plate, the second telescopic mechanism 8 can drive the bending cutter 12 to fold the edge of the plate.
[0038] 4. Because the folding process must be carried out in a specific manner, under the control of the controller, the sheet metal is placed between the upper clamping seat 11 and the lower clamping seat 13 in sequence, and then the bending cutter 12 is controlled to fold the sheet metal in sequence.
[0039] 5. After a set of folding processes is completed, it is confirmed that the board material held by the suction cup robot 4 has been formed. Then, driven by the three-axis gantry robot 1, the three-axis gantry robot 1 transports the finished board material to the stacking area 23 for stacking, and then the next folding operation can be performed.
[0040] Based on the above embodiments, further optimization can be made. In order to avoid friction between the sheet metal and the processing platform 7, several universal ball bearings can be installed on the surface of the processing platform 7, that is, the universal ball bearings cover the entire surface of the processing platform 7.
[0041] Based on the above embodiments, further optimizations can be made. The edges of the processing platform 7 are connected to the body 10 and the frame of the three-axis gantry robot 1, respectively. Furthermore, the processing platform 7 is connected to the base by reinforced legs 6 in places away from both of them, so that the processing platform 7 remains stable.
[0042] 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. An automatic flanging device for an automobile sheet metal part, comprising a three-axis gantry robot (1), characterized in that, Also includes a folding machine, which is located on one side of the three-axis truss robot (1); One side of the folding machine is horizontally provided with a processing platform (7), and the processing platform (7) corresponds to the feeding port of the folding machine; The bottom of the free end of the three-axis truss robot (1) is horizontally provided with a mounting platform (5), and the top of the mounting platform (5) is provided with a driving device.
2. The automatic flanging device for automobile sheet metal parts according to claim 1, wherein The driving device includes a motor bracket (3) mounted on the top of the mounting platform (5), and a vertical downward driving motor (2) is mounted on the motor bracket (3); The driving shaft (20) is coaxially connected with the rotating shaft of the driving motor (2), the driving shaft (20) extends below the mounting platform (5), and the driving shaft (20) is rotatably connected with the mounting platform (5), and the suction cup manipulator (4) is installed below the driving shaft (20).
3. The automatic flanging device for automobile sheet metal parts according to claim 2, wherein One end of the three-axis truss robot (1) extends to the outside of the folding machine, and a plate stacking place (22) and a stacking area (23) are arranged below the three-axis truss robot (1) outside the folding machine.
4. The automatic flanging device for automobile sheet metal parts according to claim 3, wherein The folding machine includes a machine body (10), and a vertical downward first telescopic mechanism (16) is mounted on the top of the side of the machine body (10) facing the processing platform (7); A first horizontal frame body (15) is vertically connected with the bottom of the first telescopic mechanism (16); A bending tool (12) is arranged in parallel on the side of the lower pressing seat (13) away from the processing platform (7), the bottom of the bending tool (12) is mounted on a second horizontal frame body (18), the second horizontal frame body (18) is parallel to the first horizontal frame body (15), the bottom of the second horizontal frame body (18) is connected with a second telescopic mechanism (8), the second telescopic mechanism (8) is vertical to the second horizontal frame body (18) and the lower end thereof is mounted on a support frame body (9), and the two ends of the support frame body (9) are mounted in the machine body (10); The second telescopic mechanism (8) drives the bending tool (12) to move upward, and in the initial state, the top surface height of the bending tool (12) does not exceed the top surface height of the lower pressing seat (13).
5. The automatic flanging device for automobile sheet metal parts according to claim 4, wherein The two ends of the first horizontal frame body (15) are slidably arranged on the first guide rail (14) through sliding blocks, and the first guide rail (14) is vertical to the lower pressing seat (13) and is mounted on the two sides of the machine body (10) respectively.
6. The automatic flanging device for automobile sheet metal parts according to claim 4, wherein The two ends of the second horizontal frame body (18) are slidably arranged on the second guide rail (17) through sliding blocks respectively, and the second guide rail (17) is vertical to the second horizontal frame body (18) and is mounted on the two sides inside the machine body (10) respectively.
7. The automatic flanging device for automobile sheet metal parts according to claim 3, wherein The control cabinet (24) is also provided, and the control cabinet (24) is provided with a controller, and the controller is connected with the three-axis truss robot (1), the suction cup manipulator (4), the driving motor (2), the first telescopic mechanism (16) and the second telescopic mechanism (8) respectively.