Automatic straightening, bending and cutting-off equipment for vehicle frame accessories

Abstract

The automatic straightening, bending and cutting-off equipment comprises a rack, the rack is provided with a straightening mechanism for driving a coil stock to move and straightening the coil stock, a stamping mechanism for punching and cutting off the coil stock and a bending mechanism for bending the coil stock, the stamping mechanism comprises a stamping head, a die holder and a first driving part, the die holder is arranged on the rack, and the first driving part is arranged on the die holder; the die holder is located on a moving path of a coil stock, the punching head penetrates through and is slidably connected to the die holder, a plurality of punching parts and a cutting part are arranged on the punching head, the punching parts are located on the two sides of the cutting part respectively, and the first driving piece is used for driving the punching head to slide. After the straightening mechanism drives the coil stock to move and straightens the coil stock, the front half section of a workpiece is punched through the stamping mechanism, then the workpiece is bent through the bending mechanism, finally, the rear half section of the workpiece is punched through the stamping mechanism, and the workpiece is cut off. And meanwhile, the upper half section of the next workpiece is punched, and the production efficiency of the frame accessories is improved.

Description

Technical Field

[0001] The utility model relates to the field of frame accessory processing, in particular to an automatic straightening, bending and cutting device for frame accessories. Background Art

[0002] Figure 6 As shown in the figure, the frame accessory is usually made by processing procedures such as straightening, cutting, punching and bending of a coil material. In the prior art, the coil material is usually straightened and cut into sheets by a wire drawing machine, and then the sheets are manually transported to a punching machine for punching operations on both ends of the sheets respectively. After punching, the semi-finished products after punching are manually transported to a bending machine for bending operations.

[0003] However, in the above technical solution, the processing of the frame accessory needs to be carried out by three devices, namely a wire drawing machine, a punching machine and a bending machine, in sequence to complete the production of the frame accessory, and the semi-finished products need to be transported manually according to the processing sequence, with a large number of transportation times. When the time of the front and back processes is not equal, it causes equipment interruption and the semi-finished products are in a state of waiting for processing or waiting for transportation, resulting in a long production cycle and low production efficiency of the frame accessory. Content of the Utility Model

[0004] In order to improve the production efficiency of frame accessories, the present application provides an automatic straightening, bending and cutting device for frame accessories.

[0005] The automatic straightening, bending and cutting device for frame accessories provided by the present application adopts the following technical solution:

[0006] An automatic straightening, bending and cutting device for frame accessories includes a frame. A straightening mechanism for driving the movement and straightening of the coil material, a stamping mechanism for punching and cutting the coil material, and a bending mechanism for bending the coil material are respectively arranged on the frame. The stamping mechanism includes a stamping head, a die base and a first driving member. The die base is arranged on the frame and is located on the moving path of the coil material. The stamping head passes through and is slidably connected to the die base. A plurality of punching parts and a cutting part are respectively arranged on the stamping head. The plurality of punching parts are respectively located on both sides of the cutting part. The first driving member is used for driving the sliding of the stamping head.

[0007] By adopting the above technical solution, the first driving member drives the punching head to slide, simultaneously punching and cutting the coiled material to improve production efficiency; meanwhile, several punching parts are respectively located on both sides of the cutting part, so that the punching parts on both sides of the cutting part respectively punch the first half of the next workpiece and the second half of the previous workpiece, and cut the upper and lower two workpieces to improve production efficiency; that is, after the straightening mechanism drives the coiled material to move and stretches and straightens the coiled material, the punching mechanism punches the first half of the workpiece, then the bending mechanism bends the workpiece, and finally the punching mechanism punches the second half of the workpiece and cuts the workpiece to complete the processing of the frame fitting. During the process of the punching mechanism cutting the workpiece, the punching operation of the upper half of the next workpiece is completed simultaneously, improving the production efficiency of the frame fitting.

[0008] Preferably, the straightening mechanism includes two groups of straightening wheels, two groups of driving wheels and a driving assembly. The two groups of straightening wheels and the two groups of driving wheels are respectively rotatably connected to the machine frame. The driving assembly is used to simultaneously drive the rotation of the two groups of straightening wheels and the two groups of driving wheels. When the equipment is in the working state, the two groups of straightening wheels are respectively located on both sides of the coiled material in the thickness direction, and the two groups of driving wheels are respectively located on both sides of the coiled material in the thickness direction.

[0009] By adopting the above technical solution, the driving assembly simultaneously drives the rotation of the two groups of straightening wheels and the two groups of driving wheels, so that the two groups of driving wheels pull the coiled material and move the coiled material on the equipment, facilitating subsequent processing. The two groups of straightening wheels perform stretching and straightening operations on the coiled material, improving the production efficiency of the frame fitting.

[0010] Preferably, an adjusting assembly is further included. The two groups of straightening wheels respectively include a plurality of upper pressing wheels and a plurality of lower pressing wheels. The adjusting assembly is used to adjust the distance between the upper pressing wheels and the lower pressing wheels. The adjusting assembly includes a plurality of sliding blocks, and the plurality of sliding blocks are respectively slidably connected to the machine frame. A threaded rod is respectively rotatably connected to the plurality of sliding blocks. The ends of the plurality of threaded rods away from the sliding blocks respectively penetrate and are threadedly connected to the machine frame. The plurality of upper pressing wheels respectively correspond to the plurality of sliding blocks, and the plurality of upper pressing wheels are respectively rotatably connected to the corresponding sliding blocks along the direction perpendicular to the sliding direction of the sliding blocks.

[0011] By adopting the above technical solution, rotate the threaded rod. Through the threaded connection between the threaded rod and the machine frame, the threaded rod moves along its axis direction, thereby driving the sliding block to move along the axis direction of the threaded rod to adjust the position of the sliding block on the machine frame, and thus adjusting the position of the corresponding upper pressing wheel on the machine. By adjusting the distance between the upper pressing wheel and the lower pressing wheel, the equipment can adapt to the use of coiled materials with different thicknesses, and at the same time adjust the straightening degree of the coiled material by the upper pressing wheel and the lower pressing wheel, reducing the possibility that the coiled material is still in a bent state.

[0012] Preferably, the bending mechanism includes a plurality of limiting blocks, a rotating seat, and a second driving member. The rotating seat is rotatably connected to the frame. A bending block is provided on the rotating seat. The coiled material is located on the moving path of the bending block. The plurality of limiting blocks are respectively fixedly connected to the frame. The second driving member is used to drive the rotation of the rotating seat. The plurality of limiting blocks are respectively located on both sides of the coiled material in the thickness direction.

[0013] By adopting the above technical solution, the positions of the coiled material are limited by a plurality of limiting blocks, and the bending process of the coiled material is supported; the rotation of the rotating seat is driven by the second driving member, so that the bending block moves and abuts against the coiled material to perform bending operation on the coiled material, which is convenient for bending the coiled material and improves the production efficiency of the frame accessories.

[0014] Preferably, a sliding frame is slidably connected to the frame. The rotating seat is rotatably connected to the sliding frame. The plurality of limiting blocks are respectively fixedly connected to the sliding frame. When the sliding frame slides towards the coiled material side to the extreme position, the coiled material is located on the moving path of the bending block. The plurality of limiting blocks are respectively located on both sides of the coiled material in the thickness direction.

[0015] By adopting the above technical solution, when the coiled material needs to be bent, the sliding frame is slid towards the coiled material side, so that the driving wheel drives the coiled material to move between a plurality of limiting blocks to limit the position of the coiled material; after the coiled material is bent, the sliding frame is slid towards the side away from the coiled material to make the limiting blocks separate from the coiled material, which is convenient for the cut coiled material to fall, so as to improve the production efficiency of the frame accessories.

[0016] Preferably, the plurality of limiting blocks together form a limiting channel. The end of the limiting channel close to the bending block to the end far from the bending block is arranged in a gradually expanding shape. When the coiled material is bent, the coiled material is located in the limiting channel.

[0017] By adopting the above technical solution, when the driving wheel drives the coiled material to move towards the bending block side, the end of the limiting channel close to the bending block to the end far from the bending block is arranged in a gradually expanding shape, which plays a role in guiding and limiting the movement of the coiled material.

[0018] Preferably, a plurality of limiting wheels are rotatably connected to the frame. The circumferential sides of the plurality of limiting wheels respectively abut against both side surfaces of the coiled material in the width direction.

[0019] By adopting the above technical solution, the arrangement of the limiting wheels limits both sides of the coiled material in the width direction, reduces the possibility of the coiled material deviating during the movement, and by rotating the limiting wheels, reduces the possibility of deviation in the moving distance of the coiled material due to large friction when the limiting wheels abut against the coiled material.

[0020] Preferably, a plurality of sliders are slidably connected to the frame, the plurality of sliders respectively correspond to a plurality of limiting wheels, the plurality of limiting wheels are respectively rotatably connected to the corresponding sliders, and a screw rod is rotatably connected to each of the plurality of sliders, and the plurality of screw rods respectively penetrate and are threadedly connected to the frame.

[0021] By adopting the above technical solution, rotate the screw rod. Due to the threaded connection between the screw rod and the frame, the screw rod moves along its axial direction, thereby driving the slider to move along the axial direction of the screw rod to adjust the position of the corresponding limiting wheel on the frame, facilitating the equipment to process coiled materials of different widths.

[0022] The technical effects of the present utility model are mainly reflected in the following aspects:

[0023] 1. In the present utility model, by arranging several punching parts on both sides of the cutting part, the first driving member drives the punching head to slide, simultaneously realizing punching and cutting of the coiled material to improve production efficiency; at the same time, by arranging several punching parts on both sides of the cutting part respectively, the punching parts on both sides of the cutting part punch the first half of the next workpiece and the second half of the previous workpiece respectively, and cut the upper and lower two workpieces to improve production efficiency;

[0024] 2. In the present utility model, by arranging several limiting blocks, the position of the coiled material is limited by the several limiting blocks, and the coiled material is supported during the bending process; by driving the rotation of the rotating seat by the second driving member, the bending block moves and abuts against the coiled material, performing a bending operation on the coiled material, facilitating the bending of the coiled material, and improving the production efficiency of the vehicle frame accessories;

[0025] 3. In the present utility model, by arranging a sliding frame, when it is necessary to bend the coiled material, the sliding frame is slid towards the coiled material side, so that the driving wheel drives the coiled material to move between several limiting blocks to limit the position of the coiled material; after the coiled material is bent, the sliding frame is moved towards the side away from the coiled material, so that the limiting blocks are separated from the coiled material, facilitating the dropping after cutting, and improving the production efficiency of the vehicle frame accessories. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application.

[0027] Figure 2 is a schematic diagram of the straightening mechanism structure of the embodiment of the present application.

[0028] Figure 3 is a schematic diagram of the bending mechanism structure of the embodiment of the present application.

[0029] Figure 4 is a schematic diagram of the driving component structure of the embodiment of the present application.

[0030] Figure 5It is a schematic diagram of the stamping mechanism in the embodiment of the present application.

[0031] Figure 6 It is a schematic diagram of the structure of the frame fitting in the embodiment of the present application.

[0032] Explanation of reference numerals: 1. Frame; 11. Sliding frame; 12. Second hydraulic cylinder; 13. Slide block; 14. Limiting wheel; 15. Screw; 2. Straightening mechanism; 21. Straightening wheel; 211. Upper pressing wheel; 212. Lower pressing wheel; 22. Driving wheel; 23. Driving assembly; 231. First motor; 232. Transmission belt; 233. First gear; 234. Second gear; 235. Belt pulley; 24. Adjusting assembly; 241. Sliding block; 242. Threaded rod; 3. Stamping mechanism; 31. Stamping head; 311. Punching part; 312. Cutting part; 32. Die base; 33. First driving member; 331. First hydraulic cylinder; 4. Bending mechanism; 41. Limiting block; 411. Limiting channel; 42. Rotating seat; 43. Second driving member; 431. Second motor; 432. Third gear; 433. Fourth gear; 44. Bending block; 5. Frame fitting; 6. Coiled material; 7. Controller. Detailed implementation manners

[0033] The following will Figure 1-6 further elaborate on the present application in detail to make the technical solution of the present application easier to understand and master.

[0034] The embodiment of the present application discloses an automatic straightening, bending and cutting device for a frame fitting 5.

[0035] Referring to Figure 1-Figure 5 , an automatic straightening, bending and cutting device for a frame fitting 5 in this embodiment includes a frame 1, and a straightening mechanism 2 for driving the coiled material 6 to move and straightening the coiled material 6, a stamping mechanism 3 for punching and cutting the coiled material 6, and a bending mechanism 4 for bending the coiled material 6 are respectively arranged on the frame 1.

[0036] Referring to Figure 1 and Figure 2 , the straightening mechanism 2 includes two groups of straightening wheels 21, two groups of driving wheels 22 and a driving assembly 23. The two groups of straightening wheels 21 and the two groups of driving wheels 22 are respectively rotatably connected to the frame 1. The driving assembly 23 is used to simultaneously drive the rotation of the two groups of straightening wheels 21 and the two groups of driving wheels 22. When the device is in the working state, the two groups of straightening wheels 21 are respectively located on both sides of the coiled material 6 in the thickness direction, and the two groups of driving wheels 22 are respectively located on both sides of the coiled material 6 in the thickness direction. By simultaneously driving the rotation of the two groups of straightening wheels 21 and the two groups of driving wheels 22 through the driving assembly 23, the two groups of driving wheels 22 pull the coiled material 6 and make the coiled material 6 move on the device, facilitating subsequent processing. Through the two groups of straightening wheels 21, stretching and straightening operations are performed on the coiled material 6, improving the production efficiency of the frame fitting 5.

[0037] Referring to Figure 1-Figure 5 , the stamping mechanism 3 includes a stamping head 31, a die holder 32 and a first driving member 33. The die holder 32 is provided on the frame 1. The die holder 32 is located on the moving path of the coil stock 6. The stamping head 31 is inserted through and slidably connected to the die holder 32. Two punching portions 311 and a cutting portion 312 are respectively provided on the stamping head 31. The two punching portions 311 are respectively located on both sides in the thickness direction of the cutting portion 312. The first driving member 33 is used to drive the sliding of the stamping head 31. The first driving member 33 is a first hydraulic cylinder 331. The first hydraulic cylinder 331 is fixedly connected to the frame 1. One end of the piston rod of the first hydraulic cylinder 331 is fixedly connected to the stamping head 31. The first driving member 33 drives the stamping head 31 to slide, and at the same time realizes punching and cutting of the coil stock 6 to improve production efficiency; at the same time, a plurality of punching portions 311 are respectively located on both sides of the cutting portion 312, so that the punching portions 311 on both sides of the cutting portion 312 respectively punch the front half of the next workpiece and the rear half of the previous workpiece, and cut the upper and lower two workpieces to improve production efficiency.

[0038] Referring to Figure 1-Figure 4 , the bending mechanism 4 includes two limiting blocks 41, a rotating seat 42 and a second driving member 43. A sliding frame 11 is slidably connected to the frame 1. A second hydraulic cylinder 12 is fixedly connected to the frame 1. One end of the piston rod of the second hydraulic cylinder 12 is fixedly connected to the sliding frame 11 to drive the sliding of the sliding frame 11. The rotating seat 42 is rotatably connected to the sliding frame 11. A bending block 44 is fixedly connected to the rotating seat 42. The coil stock 6 is located on the moving path of the bending block 44. The two limiting blocks 41 are respectively fixedly connected to the sliding frame 11. When the sliding frame 11 slides to the limit position toward the side of the coil stock 6, the coil stock 6 is located on the moving path of the bending block 44. The two limiting blocks 41 are respectively located on both sides in the thickness direction of the coil stock 6. The two limiting blocks 41 together form a limiting channel 411. The end of the limiting channel 411 close to the bending block 44 is arranged in a gradually expanding shape from the end far from the bending block 44. When bending the coil stock 6, the coil stock 6 is located in the limiting channel 411. The second driving member 43 is used to drive the rotation of the rotating seat 42.

[0039] Referring to Figure 1-Figure 3, the second driving member 43 includes a second motor 431. The second motor 431 is fixedly connected to the sliding frame 11. One end of the output shaft of the second motor 431 is fixedly connected with a third gear 432. A fourth gear 433 is coaxially and fixedly connected to the rotating seat 42. The fourth gear 433 is meshed with the third gear 432. The second motor 431 drives the third gear 432 to rotate, so that the fourth gear 433 drives the rotating seat 42 to rotate; the positions of the coiled material 6 are limited by two limiting blocks 41, and the end of the limiting channel 411 close to the bending block 44 to the end far from the bending block 44 is arranged in a gradually expanding shape, which plays a role in guiding and limiting the movement of the coiled material 6. And it plays a role in supporting the bending process of the coiled material 6; by driving the rotation of the rotating seat 42 by the second driving member 43, the bending block 44 is moved and abutted against the coiled material 6, and the coiled material 6 is bent, which is convenient for bending the coiled material 6 and improves the production efficiency of the vehicle frame fitting 5.

[0040] Refer to Figure 1-Figure 6 , that is, after the straightening mechanism 2 drives the coiled material 6 to move and stretch and straighten the coiled material 6, the front half of the workpiece is punched by the punching mechanism 3, the workpiece is bent by the bending mechanism 4, and finally the punching operation on the rear half of the workpiece and the cutting of the workpiece are carried out by the punching mechanism 3 to complete the processing of the vehicle frame fitting 5. During the process of cutting the workpiece by the punching mechanism 3, the punching operation on the upper half of the next workpiece is completed at the same time, which improves the production efficiency of the vehicle frame fitting 5.

[0041] Refer to Figure 3 and Figure 4 , the driving assembly 23 includes a first motor 231 and four transmission belts 232. Two sets of straightening wheels 21 and two sets of driving wheels 22 are respectively coaxially and fixedly connected with belt pulleys 235. The four transmission belts 232 are respectively wound around the belt pulleys 235 corresponding to the two sets of straightening wheels 21 and the two sets of driving wheels 22. One belt pulley 235 of any of the two sets of straightening wheels 21 and the two sets of driving wheels 22 is respectively coaxially and fixedly connected with a first gear 233. The first gears 233 located below the two sets of straightening wheels 21 are meshed with each other and are meshed with the first gears 233 located below the two sets of driving wheels 22. The first motor 231 is fixedly connected to the frame 1. One end of the output shaft of the first motor 231 is coaxially and fixedly connected with a second gear 234. The second gear 234 is meshed with any one of the first gears 233 on the two sets of straightening wheels 21 and is meshed with any one of the first gears 233 on the two sets of driving wheels 22;

[0042] Refer to Figure 3When the first motor 231 drives the second gear 234 to rotate, the two first gears 233 meshing with the second gear 234 rotate, and at the same time, the other two first gears 233 rotate together, thereby driving the four pulleys 235 coaxial with the first gears 233 to rotate, and driving the four transmission belts 232 to transmit power, driving the two groups of straightening wheels 21 and the two groups of driving wheels 22 to rotate simultaneously, and the rotation directions of the two groups of straightening wheels 21 are opposite, and the rotation directions of the two groups of driving wheels 22 are opposite.

[0043] Referring to Figure 1-Figure 4 It further includes an adjusting component 24. The two groups of straightening wheels 21 respectively include a plurality of upper pressing wheels 211 and a plurality of lower pressing wheels 212. The adjusting component 24 is used to adjust the distance between the upper pressing wheels 211 and the lower pressing wheels 212. The adjusting component 24 includes a plurality of sliding blocks 241. The plurality of sliding blocks 241 are respectively slidably connected to the frame 1. A threaded rod 242 is respectively rotatably connected to the plurality of sliding blocks 241. One end of the plurality of threaded rods 242 away from the sliding blocks 241 respectively passes through and is threadedly connected to the frame 1. The plurality of upper pressing wheels 211 respectively correspond to the plurality of sliding blocks 241, and the plurality of upper pressing wheels 211 are respectively rotatably connected to the corresponding sliding blocks 241 along a direction perpendicular to the sliding direction of the sliding blocks 241.

[0044] Referring to Figure 1-Figure 4 By rotating the threaded rod 242, due to the threaded connection between the threaded rod 242 and the frame 1, the threaded rod 242 moves along its axial direction, thereby driving the sliding block 241 to move along the axial direction of the threaded rod 242, so as to adjust the position of the sliding block 241 on the frame 1, and thus adjust the position of the corresponding upper pressing wheel 211 on the machine; by adjusting the distance between the upper pressing wheel 211 and the lower pressing wheel 212, the device can adapt to the use of coiled materials 6 with different thicknesses, and at the same time adjust the straightening degree of the upper pressing wheel 211 and the lower pressing wheel 212 on the coiled material 6, reducing the possibility that the coiled material 6 is still in a bent state.

[0045] Referring to Figure 1-Figure 5 It further includes a plurality of limiting wheels 14. A plurality of sliders 13 are slidably connected to the frame 1. The plurality of sliders 13 respectively correspond to the plurality of limiting wheels 14. The plurality of limiting wheels 14 are respectively rotatably connected to the corresponding sliders 13. The circumferential sides of the plurality of limiting wheels 14 respectively abut against the two side surfaces in the width direction of the coiled material 6. A threaded rod 242 is respectively rotatably connected to the plurality of sliders 13. The plurality of threaded rods 242 respectively pass through and are threadedly connected to the frame 1.

[0046] Referring to Figure 1-Figure 5, rotate the screw rod 15. Through the threaded connection between the screw rod 15 and the frame 1, the screw rod 15 moves along its axial direction, thereby driving the slider 13 to move along the axial direction of the screw rod 15 to adjust the position of the corresponding limiting wheel 14 on the frame 1, facilitating the processing of the coiled material 6 with different widths by the device. The setting of the limiting wheel 14 limits both sides of the coiled material 6 in the width direction, reducing the possibility of deviation during the movement of the coiled material 6. Moreover, by rotating the limiting wheel 14, the possibility of deviation in the moving distance of the coiled material 6 caused by large friction when the limiting wheel 14 abuts against the coiled material 6 is reduced.

[0047] Refer to Figure 1-Figure 4 , it further includes a controller 7. The controller 7 is used to control the operation of each cylinder and motor, enabling the device to perform coherent processing procedures to improve the production efficiency of the vehicle frame fitting 5.

[0048] Of course, the above are only typical examples of this application. In addition, this application can also have many other specific implementation manners. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by this application.

Claims

1. An automated straightening, bending and cutting device for a vehicle frame fitting, characterized in that: It includes a frame (1), on which there are respectively a straightening mechanism (2) for driving the movement of the coil material (6) and straightening the coil material (6), a stamping mechanism (3) for punching and cutting the coil material (6), and a bending mechanism (4) for bending the coil material (6). The stamping mechanism (3) includes a stamping head (31), a die base (32), and a first driving member (33). The die base (32) is arranged on the frame (1), and the die base (32) is located on the moving path of the coil material (6). The stamping head (31) passes through and is slidably connected to the die base (32). There are respectively a number of punching parts (311) and a cutting part (312) on the stamping head (31). A number of the punching parts (311) are respectively on both sides of the cutting part (312). The first driving member (33) is used to drive the sliding of the stamping head (31).

2. The automatic straightening, bending and cutting equipment for a frame fitting according to claim 1, characterized in that: The straightening mechanism (2) includes two groups of straightening wheels (21), two groups of driving wheels (22), and a driving assembly (23). The two groups of straightening wheels (21) and the two groups of driving wheels (22) are respectively rotatably connected to the frame (1). The driving assembly (23) is used to drive the rotation of the two groups of straightening wheels (21) and the two groups of driving wheels (22) simultaneously. When the device is in the working state, the two groups of straightening wheels (21) are respectively on both sides of the coil material (6) in the thickness direction, and the two groups of driving wheels (22) are respectively on both sides of the coil material (6) in the thickness direction.

3. An automated straightening, bending and cutting device for a vehicle frame fitting according to claim 2, characterized in that: It further includes an adjusting assembly (24). The two groups of straightening wheels (21) respectively include a number of upper pressing wheels (211) and a number of lower pressing wheels (212). The adjusting assembly (24) is used to adjust the distance between the upper pressing wheels (211) and the lower pressing wheels (212). The adjusting assembly (24) includes a number of sliding blocks (241). The number of sliding blocks (241) are respectively slidably connected to the frame (1). A threaded rod (242) is respectively rotatably connected to the number of sliding blocks (241). One end of the number of threaded rods (242) away from the sliding blocks (241) respectively passes through and is threadedly connected to the frame (1). The number of upper pressing wheels (211) respectively correspond to the number of sliding blocks (241). The number of upper pressing wheels (211) are respectively rotatably connected to the corresponding sliding blocks (241) along the direction perpendicular to the sliding direction of the sliding blocks (241).

4. An automatic straightening, bending and cutting device for a vehicle frame fitting according to claim 1, characterized in that: The bending mechanism (4) includes a number of limiting blocks (41), a rotating seat (42), and a second driving member (43). The rotating seat (42) is rotatably connected to the frame (1). A bending block (44) is arranged on the rotating seat (42). The coil material (6) is located on the moving path of the bending block (44). The number of limiting blocks (41) are respectively fixedly connected to the frame (1). The second driving member (43) is used to drive the rotation of the rotating seat (42). The number of limiting blocks (41) are respectively on both sides of the coil material (6) in the thickness direction.

5. An automated straightening, bending and cutting device for a vehicle frame fitting according to claim 4, characterized in that: The frame (1) is slidably connected with a sliding frame (11), the rotating seat (42) is rotatably connected to the sliding frame (11), and a plurality of the limiting blocks (41) are respectively fixedly connected to the sliding frame (11). When the sliding frame (11) slides towards the side of the coil material (6) to the extreme position, the coil material (6) is located on the moving path of the bending block (44), and a plurality of the limiting blocks (41) are respectively located on both sides in the thickness direction of the coil material (6).

6. An automated straightening, bending and cutting device for a vehicle frame fitting according to claim 4, characterized in that: A plurality of the limiting blocks (41) together form a limiting channel (411), and the limiting channel (411) is arranged in a gradually expanding shape from the end close to the bending block (44) to the end far from the bending block (44). When bending the coil material (6), the coil material (6) is located in the limiting channel (411).

7. An automatic straightening, bending and cutting device for a vehicle frame fitting according to claim 1, characterized in that: A plurality of limiting wheels (14) are rotatably connected to the frame (1), and the circumferential sides of the plurality of limiting wheels (14) are respectively abutted against both side surfaces in the width direction of the coil material (6).

8. An automatic straightening, bending and cutting device for a vehicle frame fitting according to claim 6, characterized in that: A plurality of sliders (13) are slidably connected to the frame (1), the plurality of sliders (13) respectively correspond to the plurality of limiting wheels (14), the plurality of limiting wheels (14) are respectively rotatably connected to the corresponding sliders (13), and a screw rod (15) is respectively rotatably connected to the plurality of sliders (13), and the plurality of screw rods (15) respectively pass through and are threadedly connected to the frame (1).

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