Large-tonnage frame machining process and device

Abstract

The invention discloses a large-tonnage vehicle frame machining process and device, and relates to the technical field of vehicle frame machining, the large-tonnage vehicle frame machining device comprises a bearing frame and a vehicle frame part, the top of the bearing frame is rotationally connected with a supporting frame, the top of the supporting frame is provided with a placing frame, and the vehicle frame part is installed on the vehicle frame part; control assemblies used for adjusting the welding angle of the frame part are arranged on the two sides of the supporting frame. According to the large-tonnage frame machining process and the large-tonnage frame machining device, the welding angle of the frame part is accurately controlled, and the angle is kept stable in the welding process, so that the deformation of the frame part caused by non-uniform distribution of thermal stress in the welding process can be effectively reduced; the uniform welding angle and the stable welding position are beneficial to more uniform distribution of heat on the frame part, and the risks of local overheating and deformation are reduced, so that the welding quality is improved, and the size precision and the shape precision of the frame part are ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of frame processing, and specifically provides a processing technology and a processing device for large-tonnage frames. Background Art

[0002] In the field of large-scale machinery manufacturing, as a key load-bearing component, the processing quality of large-tonnage frames is directly related to the performance, safety, and service life of the entire mechanical equipment. With the continuous development of industrial technology, higher requirements are put forward for the processing accuracy and efficiency of large-tonnage frames. Especially in the welding process, it is necessary to precisely control the welding angle of frame parts to ensure the welding quality and the overall structural strength of the frame.

[0003] Currently, some existing processing devices for large-tonnage frames have made certain progress in welding angle adjustment. Some devices use simple mechanical structures, such as manually adjustable rotating shafts or bolt fastening devices, to change the welding angle of frame parts. However, these devices have many significant defects.

[0004] In terms of the flexibility of welding angle adjustment, the adjustment methods of existing devices lack flexibility and versatility. They often cannot achieve synchronous height adjustment at both ends of the frame parts, resulting in difficult adjustment of the left and right angles of the frame parts and making it difficult to meet the welding requirements of frame parts with different sizes and shapes. For some large-tonnage frames with complex shapes and large sizes, existing devices are difficult to adjust them to the optimal welding position, increasing the difficulty of operation for welders, reducing the welding quality and efficiency, and easily generating welding defects caused by improper angles, such as uneven welds, pores, slag inclusions, etc., seriously affecting the strength and reliability of the frame. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a processing technology and a processing device for large-tonnage frames, which solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: A processing device for large-tonnage frames includes a load-bearing frame and a frame part. A support frame is rotatably connected to the top of the load-bearing frame. A placement frame is arranged on the top of the support frame, and the frame part is installed on the placement frame. Control components for adjusting the welding angle of the frame part are arranged on both sides of the support frame.

[0007] The control component includes positioning shafts rotatably installed on both sides of the inner cavity of the support frame. The other ends of the positioning shafts are fixedly connected to the placement frame. The outer wall of the fixed disk is fixedly connected to the fixed disk. A number of mounting blocks are arranged in a circumferential array on the side wall of the fixed disk. A positioning block fixedly installed on the support frame is arranged outside the fixed disk. A U-shaped frame is fixedly connected to the positioning block. Arc-shaped plates are symmetrically connected to the centers of both sides of the U-shaped frame. A rectangular block is rotatably connected to the outer wall of the U-shaped frame. A mounting shaft is fixedly connected to the surface of the rectangular block. Push rods are arranged in a staggered manner on the outer wall of the mounting shaft, and the ends of the push rods correspond to the positions of the mounting blocks.

[0008] As a further preference of this technical solution, a cross plate is fixedly installed on the surface of the rectangular block. First damping springs are arranged on both sides of the bottom end of the cross plate, and the other ends of the first damping springs are fixedly connected to the surface of the push rod.

[0009] As a further preference of this technical solution, L-shaped fixing rods are fixedly connected to both sides of the positioning block. A return spring is movably arranged at the end of the L-shaped fixing rod, and the other end of the return spring is movably connected to the rectangular block.

[0010] As a further preference of this technical solution, a positioning rod is fixedly connected to the inner cavity of the rectangular block. A lifting rod is slidably connected to the top of the positioning rod. A connecting plate is arranged at the top of the lifting rod. A first cylinder is movably arranged on the side wall of the connecting plate, and the first cylinder is movably installed on the support frame. A mounting frame is fixedly connected to the outer wall of the lifting rod, and the mounting frame is slidably installed on the rectangular block in the vertical direction.

[0011] As a further preference of this technical solution, a second damping spring sleeved on the positioning rod and the lifting rod is arranged between the mounting frame and the inner wall of the rectangular block. A third cylinder is fixedly installed on the top of the connecting plate, and the output end of the third cylinder is fixedly connected to the lifting rod.

[0012] As a further preference of this technical solution, a disk fixedly installed on the support frame is sleeved on the outer wall of the positioning shaft. A number of card slots are opened on the outer wall of the disk. A cross bar is fixedly connected to the bottom end of the mounting frame. A card block adapted to the card slots is fixedly connected to the surface of the cross bar. A vertical rod fixedly installed on the support frame is slidably connected to the cross bar. A limiting block is fixedly connected to the top of the vertical rod. A third damping spring sleeved on the vertical rod is arranged between the cross bar and the support frame.

[0013] As a further preference of this technical solution, arc-shaped rods are fixedly connected to both sides of the load-bearing frame. A movable plate is slidably connected to the arc-shaped rods, and the movable plate is fixedly connected to the support frame. Second cylinders are fixedly connected to the tops of both sides of the load-bearing frame, and the output ends of the second cylinders are movably connected to a movable frame connected to the movable plate.

[0014] The present invention also discloses a processing technology for a large-tonnage vehicle frame processing device, which specifically includes the following steps:

[0015] Step 1: When the left - right angle adjustment of the frame member is required, the second cylinders on both sides of the load - bearing frame are activated. In cooperation with the moving frame, the movable plate slides on the arc - shaped rod and rises and falls, so that the movable plate drives the support frame, the placement frame and the two ends of the frame member to rise and fall, thereby enabling the left - right angle of the frame member to be adjusted;

[0016] Step 2: When the front - back angle adjustment of the frame member is required, the third cylinder is activated to drive the lifting rod and the mounting frame to move downward and compress the second damping spring, so that the mounting frame drives the cross - bar and the clamping block to move downward synchronously and compress the third damping spring, so that the clamping block no longer engages with the card slot of the disc;

[0017] Then, the first cylinder is activated to drive the connecting plate to move forward or backward, so that the connecting plate drives the third cylinder, the lifting rod, the positioning rod, the rectangular block and the mounting frame to rotate forward or backward. When the rectangular block rotates forward or backward, the rectangular block can drive the mounting shaft and the push rod to move synchronously, so that the push rod cooperates with the mounting block to drive the fixed disc, the positioning shaft, the placement frame and the frame member to rotate forward or backward, thereby enabling the front - back angle of the subsequent welding of the frame member to be adjusted. At the same time, the rectangular block can stretch and compress the two reset springs on both sides. Through the elastic force of its own, the reset spring can assist the subsequent reset of the rectangular block, and then the rectangular block drives the push rod to reset through the mounting shaft. At this time, under the elastic force of the first damping spring, the push rod maintains its position corresponding to the mounting block, which is convenient for the next rotation adjustment of the placement frame and the frame member;

[0018] Step 3: At this time, after the front - back welding angle adjustment of the subsequent frame member is completed, the third cylinder is activated to drive the lifting rod, the mounting frame, the cross - bar and the clamping block to move upward, so that the clamping block engages with the card slot of the disc, thereby preventing the subsequent placement frame and the frame member from rotating during welding.

[0019] Compared with the prior art, the following beneficial effects are achieved:

[0020] Driving related components through the first cylinder can drive the placement rack and the vehicle frame component to rotate back and forth, realizing flexible adjustment of the front and rear angles of the vehicle frame component for subsequent welding, meeting different welding requirements. When the rectangular block rotates, one of the two reset springs on both sides is stretched and the other is compressed. The reset spring uses its own elastic force to assist the rectangular block in resetting, thereby driving the push rod to reset. Moreover, the push rod maintains its position corresponding to the mounting block under the action of the first damping spring, facilitating the next rotation adjustment; The L-shaped fixed rod limits the reset spring to improve its stability. When the rectangular block drives the two push rods to move, one push rod pushes the mounting block and the fixed disk to rotate, and the other push rod rotates upward and compresses itself under the action of the U-shaped frame, enabling the two push rods to adapt to another mounting block when the subsequent rectangular block moves and resets, facilitating the next welding angle adjustment. Driving the mounting rack and related components to move through the third cylinder can separate or engage the clamping block with the disk slot. When engaged, it prevents the placement rack and the vehicle frame component from rotating during welding, ensuring welding precision. By precisely controlling the welding angle of the vehicle frame component and maintaining the angle stability during welding, it can effectively reduce the deformation of the vehicle frame component caused by uneven distribution of thermal stress during welding. The uniform welding angle and stable welding position contribute to more uniform heat distribution on the vehicle frame component, reducing the risk of local overheating and deformation, thereby improving the welding quality and ensuring the dimensional accuracy and shape accuracy of the vehicle frame component; Controlling the expansion and contraction of the cylinder can easily separate and engage the clamping block with the slot, with simple and quick operation. Due to the precise engagement design of the clamping block and the disk slot, after each adjustment of the angle of the vehicle frame component, it can ensure the height consistency of the placement rack and the vehicle frame component at the welding position, greatly improving the welding repeatability, enabling the welding quality of each vehicle frame component to be effectively guaranteed during mass production, reducing welding defects caused by position deviation, and enhancing the overall quality stability of the product.

[0021] By driving the movable plate to slide on the arc-shaped rod and achieving one up and one down movement, the two ends of the support frame, the placement rack, and the vehicle frame component can be adjusted in height synchronously, thereby flexibly adjusting the left and right angles of the vehicle frame component to meet the requirements of different welding angles. The flexible adjustment of the angle can ensure that the vehicle frame component is in the best position during welding, which is beneficial for welders to perform precise operations, improve the welding quality and efficiency, and reduce welding defects caused by improper angles. This adjustment method can adapt to vehicle frame components of different sizes and shapes, and can meet the welding requirements of different vehicle frame components through simple adjustment, enhancing the versatility and adaptability of the equipment. Brief Description of the Drawings

[0022] Figure 1 is the overall structural schematic diagram of the present invention;

[0023] Figure 2 is the partial structural schematic diagram of the load-bearing frame, support frame, placement rack, movable plate, and arc-shaped rod in the present invention;

[0024] Figure 3 Structural schematic diagram of the support frame, positioning shaft, fixed disk, U-shaped frame and arc plate in the present invention;

[0025] Figure 4 Structural schematic diagram of the rectangular block, mounting shaft and push rod in the present invention;

[0026] Figure 5 Structural schematic diagram of the U-shaped frame, push rod and mounting block in the present invention;

[0027] Figure 6 Structural schematic diagram of the rectangular block, positioning rod, lifting rod and mounting rack in the present invention;

[0028] Figure 7 Structural schematic diagram of the cross plate, push rod, fixed disk and mounting block in the present invention;

[0029] Figure 8 Structural schematic diagram of the support frame, positioning shaft, mounting rack and disc in the present invention;

[0030] Figure 9 is Figure 8 The enlarged view of part A in

[0031] In the figure: 1, load-bearing frame; 2, support frame; 3, placement frame; 4, control component; 5, vehicle frame component; 41, positioning shaft; 42, fixed disk; 43, mounting block; 44, positioning block; 45, U-shaped frame; 46, arc plate; 47, rectangular block; 48, cross plate; 49, mounting shaft; 410, push rod; 411, first damping spring; 412, L-shaped fixing rod; 413, return spring; 414, lifting rod; 415, connecting plate; 416, first cylinder; 417, positioning rod; 418, mounting rack; 419, second damping spring; 422, disc; 423, cross bar; 424, vertical rod; 425, limiting block; 426, third damping spring; 427, clamping block; 428, movable plate; 429, arc rod; 430, second cylinder; 431, moving rack; 432, third cylinder. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings of the specification. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] Embodiment 1: In combination with Figures 1 - 9As shown in the figure, the present invention provides a technical solution: a large-tonnage vehicle frame processing device, including a load-bearing frame 1 and a vehicle frame member 5. During the welding process of the vehicle frame member 5, large deformation is likely to occur. Therefore, with the assistance of the welding fixture, we have pre-calculated and reserved the welding reverse deformation amount. To ensure the welding quality, we have rigidly fixed the vehicle frame member 5. In addition, some large components on the vehicle frame member 5 have been heat-treated before welding to eliminate the internal stress generated during the welding process, thereby ensuring the dimensional accuracy after welding. The top of the load-bearing frame 1 is rotationally connected to a support frame 2, and a placement frame 3 is provided at the top of the support frame 2. The vehicle frame member 5 is installed on the placement frame 3 to ensure its stability and functionality. To precisely control the welding angle of the vehicle frame member 5, control components 4 for adjusting the welding angle are particularly provided on both sides of the support frame 2;

[0034] The control component 4 consists of multiple parts, including positioning shafts 41 rotatably installed on both sides of the inner cavity of the support frame 2. The other end of the positioning shaft 41 is fixedly connected to the placement frame 3. The outer wall of the fixed disk 42 is fixedly connected to the positioning shaft 41. A number of mounting blocks 43 are arranged in a circumferential array on the side wall of the fixed disk 42. A positioning block 44 fixedly installed on the support frame 2 is provided outside the fixed disk 42. A U-shaped frame 45 is fixedly connected to the positioning block 44. Arc-shaped plates 46 are symmetrically connected to the two sides of the U-shaped frame 45 at the center. A rectangular block 47 is rotatably connected to the outer wall of the U-shaped frame 45. A mounting shaft 49 is fixedly connected to the surface of the rectangular block 47. Push rods 410 are arranged in a staggered manner on the outer wall of the mounting shaft 49. The end of the push rod 410 corresponds to the position of the mounting block 43. When the rectangular block 47 and the mounting shaft 49 are moved forward or backward, the mounting shaft 49 can drive the push rod 410 to move forward or backward synchronously. In this way, the end of the push rod 410 can push the mounting block 43, the fixed disk 42, and the positioning shaft 41 to rotate forward or backward, and further drive the placement frame 3 and the vehicle frame member 5 to rotate forward or backward, thereby realizing the precise control of the welding angle of the vehicle frame member 5;

[0035] A cross plate 48 is fixedly installed on the surface of the rectangular block 47. First damping springs 411 are arranged on both sides at the bottom end of the cross plate 48. The other end of the first damping spring 411 is fixedly connected to the surface of the push rod 410. Under the elastic action of the first damping spring 411, the push rod 410 can be pushed to rotate downward, so that the end of the push rod 410 corresponds to the position of the mounting block 43;

[0036] On both sides of the positioning block 44, there are fixedly connected L-shaped fixing rods 412. At the end of the L-shaped fixing rod 412, a return spring 413 is movably arranged. The other end of the return spring 413 is movably connected to the rectangular block 47. When the rectangular block 47 rotates forward or backward, one of the return springs 413 on both sides can be stretched and the other can be compressed. Through its own elastic force, the return spring 413 can assist the subsequent reset of the rectangular block 47, so that the rectangular block 47 drives the push rod 410 to reset through the mounting shaft 49. At this time, under the elastic force of the first damping spring 411, the push rod 410 maintains a corresponding position with the mounting block 43, which is convenient for the next rotation adjustment of the placement rack 3 and the vehicle frame part 5. The setting of the L-shaped fixing rod 412 can limit the return spring 413 and prevent the return spring 413 from shifting during the stretching or compressing process, improving the stability of the return spring 413;

[0037] In the inner cavity of the rectangular block 47, a positioning rod 417 is fixedly connected. The top of the positioning rod 417 is connected to the lifting rod 414 in a sliding manner. The top of the lifting rod 414 is provided with a connecting plate 415. A first cylinder 416 is movably arranged on the side wall of the connecting plate 415. The cylinder is movably installed on the support frame 2. An installation frame 418 is fixedly connected to the outer wall of the lifting rod 414. The installation frame 418 is slidably installed on the rectangular block 47 in the vertical direction. Between the installation frame 418 and the inner wall of the rectangular block 47, a second damping spring 419 sleeved on the positioning rod 417 and the lifting rod 414 is provided. The top of the connecting plate 415 is fixedly installed with a third cylinder 432. The output end of the third cylinder 432 is fixedly connected to the lifting rod 414. When it is necessary to control the forward and backward movement of the rectangular block 47, by turning on the first cylinder 416, the connecting plate 415 is driven to move forward or backward, so that the connecting plate 415 drives the third cylinder 432, the lifting rod 414, the positioning rod 417, the rectangular block 47 and the installation frame 418 to rotate forward or backward together. The rectangular block 47 can drive the mounting shaft 49 and the push rod 410 to move synchronously, so that the push rod 410 cooperates with the mounting block 43 to drive the fixed disk 42, the positioning shaft 41 and the placement rack 3 and the vehicle frame part 5 to rotate forward or backward. In this way, the subsequent front and back welding angles of the vehicle frame part 5 can be accurately adjusted;

[0038] A disc 422 fixedly installed on the support frame 2 is sleeved on the outer wall of the positioning shaft 41. A plurality of card slots are provided on the outer wall of the disc 422. The bottom end of the mounting frame 418 is fixedly connected to a cross bar 423. A card block 427 adapted to the card slots is fixedly connected to the surface of the cross bar 423. A vertical rod 424 fixedly installed on the support frame 2 is slidably connected to the cross bar 423. The top of the vertical rod 424 is fixedly connected to a limiting block 425. A third damping spring 426 sleeved on the vertical rod 424 is provided between the cross bar 423 and the support frame 2. During the process of adjusting the front-back welding angle of the vehicle frame member 5, by activating the third cylinder 432, the lifting rod 414 and the mounting frame 418 are driven to move downward and compress the second damping spring 419. In this way, the mounting frame 418 drives the cross bar 423 and the card block 427 to move downward synchronously and compress the third damping spring 426, so that the card block 427 no longer engages with the card slots of the disc 422. After completing the subsequent adjustment of the front-back welding angle of the vehicle frame member 5, by activating the third cylinder 432, the lifting rod 414, the mounting frame 418, the cross bar 423 and the card block 427 are driven to move upward, so that the card block 427 engages with the card slots of the disc 422. This can prevent the subsequent placement rack 3 and the vehicle frame member 5 from rotating during welding, thereby ensuring the welding accuracy. At the same time, when it is necessary to adjust the angles of the placement rack 3 and the vehicle frame member 5, only by controlling the expansion and contraction of the cylinder, the separation and engagement of the card block 427 and the card slots can be easily achieved, and the operation is simple and fast. In addition, this design also fully considers stability and safety. The setting of the third damping spring 426 can provide a certain buffer when the card block 427 engages with the card slots, reduce the wear caused by hard contact, and extend the service life. The existence of the limiting block 425 effectively prevents the cross bar 423 from sliding excessively on the vertical rod 424, ensuring the stability of the entire structure.

[0039] In an embodiment of the present invention, when adjusting the front - rear angle of the frame member 5, we first need to start the first cylinder 416. This action causes the connecting plate 415 to move forward or backward. The movement of the connecting plate 415 further drives the third cylinder 432, the lifting rod 414, the positioning rod 417, the rectangular block 47, and the mounting bracket 418 to rotate forward or backward accordingly. When the rectangular block 47 rotates forward or backward, it drives the mounting shaft 49 and the push rod 410 to move synchronously. The push rod 410, in cooperation with the mounting block 43, can push the fixed disk 42, the positioning shaft 41, and the placement rack 3 to rotate forward or backward correspondingly with the frame member 5. Such a design allows us to precisely adjust the front - rear angle of the subsequent welding of the frame member 5. At the same time, during the rotation of the rectangular block 47, it stretches and compresses the reset springs 413 on both sides. The reset springs 413 utilize their own elastic force to assist the rectangular block 47 in resetting. Subsequently, the rectangular block 47 drives the push rod 410 to reset through the mounting shaft 49. During this process, the push rod 410 maintains its corresponding position with the mounting block 43 under the elastic force of the first damping spring 411, facilitating the next rotation adjustment of the placement rack 3 and the frame member 5. The setting of the L - shaped fixing rod 412 can limit the reset springs 413, preventing them from shifting during stretching or compression, thereby improving the stability of the reset springs 413;

[0040] In addition, during the process of the rectangular block 47 driving the two push rods 410 to move to one side, one push rod 410 will push the mounting block 43 and the fixed disk 42 to rotate, while the other push rod 410 will rotate upward and compress the push rod 410 under the action of the U - shaped frame 45. Such a design ensures that when the rectangular block 47 moves and resets, the two push rods 410 can be adapted to another mounting block 43, facilitating the next welding angle adjustment;

[0041] Before adjusting the front-back welding angle of the frame member 5, we need to start the third cylinder 432, which drives the lifting rod 414 and the mounting bracket 418 to move downward and compress the second damping spring 419. As the mounting bracket 418 moves, the cross bar 423 and the locking block 427 also move downward synchronously and compress the third damping spring 426. This action causes the locking block 427 to no longer engage with the card slot of the disc 422. After adjusting the front-back welding angle of the frame member 5, we start the third cylinder 432 again to drive the lifting rod 414, the mounting bracket 418, the cross bar 423, and the locking block 427 to move upward. In this way, the locking block 427 can engage with the card slot of the disc 422 to prevent the placement rack 3 and the frame member 5 from rotating during the welding process, thereby ensuring the welding accuracy. In addition, when it is necessary to adjust the angles of the placement rack 3 and the frame member 5, we only need to control the expansion and contraction of the cylinder to easily achieve the separation and engagement of the locking block 427 and the card slot. The operation is simple and fast. This design also fully considers stability and safety. The setting of the third damping spring 426 can provide a certain buffer when the locking block 427 engages with the card slot, reduce the wear caused by hard contact, and extend the service life. The presence of the limit block 425 effectively prevents the cross bar 423 from sliding excessively on the vertical rod 424, ensuring the stability of the entire structure. Due to the precise engagement design of the locking block 427 and the card slot of the disc 422, after each adjustment of the angle of the frame member 5, the height consistency of the placement rack 3 and the frame member 5 at the welding position can be ensured, greatly improving the welding repeatability. This enables the welding quality of each frame member 5 to be effectively guaranteed during mass production, reduces welding defects caused by position deviation, and improves the overall quality stability of the product.

[0042] Embodiment 2: Combining Figure 2 As shown, on the basis of Embodiment 1, arc-shaped rods 429 are fixedly connected to both sides of the load-bearing frame 1. A movable plate 428 is slidably connected to the arc-shaped rods 429, and the movable plate 428 is fixedly connected to the support frame 2. Second cylinders 430 are fixedly connected to the tops of both sides of the load-bearing frame 1, and the output ends of the second cylinders 430 are movably connected to a movable frame 431 that is movably connected to the movable plate 428.

[0043] In an embodiment of the present invention, when it is necessary to adjust the left - right angle of the frame member 5, by activating the second cylinders 430 on both sides of the load - bearing frame 1, the moving frame 431 is coordinated to drive the movable plate 428 to slide on the arc - shaped rod 429 and move up and down, so that the movable plate 428 drives the support frame 2, the placement frame 3 and the two ends of the frame member 5 to move up and down, thereby enabling the adjustment of the left - right angle of the frame member 5. Thus, it is convenient for the subsequent welding work of the frame member 5. By driving the moving frame 431 with the second cylinder 430, the movable plate 428 slides on the arc - shaped rod 429 and moves up and down, enabling the support frame 2, the placement frame 3 and the two ends of the frame member 5 to synchronously adjust their heights, thereby flexibly adjusting the left - right angle of the frame member 5 to meet the requirements of different welding angles. The flexible adjustment of the angle can ensure that the frame member 5 is in the best position during welding, which is beneficial for welders to perform precise operations, improve the welding quality and efficiency, and reduce welding defects caused by improper angles. This adjustment method can adapt to frame members 5 of different sizes and shapes, and can meet the welding requirements of different frame members 5 through simple adjustment, enhancing the versatility and adaptability of the equipment.

[0044] The present invention also discloses a processing technology of a large - tonnage frame processing device, which specifically includes the following steps:

[0045] Step 1: When it is necessary to adjust the left - right angle of the frame member 5, by activating the second cylinders 430 on both sides of the load - bearing frame 1, the moving frame 431 is coordinated to drive the movable plate 428 to slide on the arc - shaped rod 429 and move up and down, so that the movable plate 428 drives the support frame 2, the placement frame 3 and the two ends of the frame member 5 to move up and down, thereby enabling the adjustment of the left - right angle of the frame member 5;

[0046] Step 2: When it is necessary to adjust the front - rear angle of the frame member 5, by activating the third cylinder 432 to drive the lifting rod 414 and the mounting frame 418 to move downward and compress the second damping spring 419, so that the mounting frame 418 drives the cross - bar 423 and the clamping block 427 to move downward synchronously and compress the third damping spring 426, so that the clamping block 427 no longer forms a clamping engagement with the card slot of the disc 422;

[0047] Then, by activating the first cylinder 416, the connecting plate 415 is driven to move forward or backward, causing the connecting plate 415 to drive the third cylinder 432, the lifting rod 414, the positioning rod 417, the rectangular block 47, and the mounting bracket 418 to rotate forward or backward. When the rectangular block 47 rotates forward or backward, the rectangular block 47 can drive the mounting shaft 49 and the push rod 410 to move synchronously, enabling the push rod 410 to cooperate with the mounting block 43 to drive the fixed disk 42, the positioning shaft 41, the placement rack 3, and the vehicle frame member 5 to rotate forward or backward, thereby enabling adjustment of the front and rear angles of the subsequent welding of the vehicle frame member 5. At the same time, the rectangular block 47 can stretch and compress one of the two reset springs 413 on both sides. Through its own elastic force, the reset spring 413 can assist the subsequent reset of the rectangular block 47, and then the rectangular block 47 drives the push rod 410 to reset through the mounting shaft 49. At this time, under the elastic force of the first damping spring 411, the push rod 410 maintains its position corresponding to the mounting block 43, facilitating the next rotation adjustment of the placement rack 3 and the vehicle frame member 5;

[0048] Step 3: At this time, after completing the adjustment of the front and rear welding angles of the subsequent vehicle frame member 5, by activating the third cylinder 432, the lifting rod 414, the mounting bracket 418, the cross bar 423, and the block 427 are driven to move upward, causing the block 427 to engage with the slot of the disk 422, thereby preventing the subsequent placement rack 3 and vehicle frame member 5 from rotating during welding.

[0049] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A large-tonnage vehicle frame processing device, comprising a load-bearing frame (1) and a vehicle frame part (5), characterized in that: The top of the load-bearing frame (1) is rotatably connected to the support frame (2). A placement frame (3) is arranged on the top of the support frame (2), and the vehicle frame member (5) is installed on the vehicle frame member (5). Control components (4) for adjusting the welding angle of the vehicle frame member (5) are arranged on both sides of the support frame (2). The control component (4) includes positioning shafts (41) rotatably installed on both sides of the inner cavity of the support frame (2). The other ends of the positioning shafts (41) are fixedly connected to a fixed disk (42). The outer wall of the fixed disk (42) is fixedly connected with a fixed disk (42). A number of mounting blocks (43) are arranged in a circumferential array on the side wall of the fixed disk (42). A positioning block (44) fixedly installed on the support frame (2) is arranged outside the fixed disk (42). A U-shaped frame (45) is fixedly connected to the positioning block (44). Arc-shaped plates (46) are symmetrically connected to the centers of both sides of the U-shaped frame (45). A rectangular block (47) is rotatably connected to the outer wall of the U-shaped frame (45). A mounting shaft (49) is fixedly connected to the surface of the rectangular block (47). A push rod (410) is arranged in a staggered manner on the outer wall of the mounting shaft (49), and the end of the push rod (410) corresponds to the position of the mounting block (43).

2. The large-tonnage vehicle frame processing device according to claim 1, wherein: A cross plate (48) is fixedly installed on the surface of the rectangular block (47). First damping springs (411) are arranged on both sides of the bottom end of the cross plate (48). The other ends of the first damping springs (411) are fixedly connected to the surface of the push rod (410).

3. The large-tonnage vehicle frame processing device according to claim 2, characterized in that: L-shaped fixing rods (412) are fixedly connected to both sides of the positioning block (44). A return spring (413) is movably arranged at the end of the L-shaped fixing rod (412). The other end of the return spring (413) is movably connected to the rectangular block (47).

4. A large-tonnage vehicle frame processing device according to claim 3, characterized in that: A positioning rod (417) is fixedly connected to the inner cavity of the rectangular block (47). A lifting rod (414) is slidably connected to the top of the positioning rod (417). A connecting plate (415) is arranged at the top of the lifting rod (414). A first cylinder (416) is movably arranged on the side wall of the connecting plate (415), and the first cylinder (416) is movably installed on the support frame (2). A mounting frame (418) is fixedly connected to the outer wall of the lifting rod (414), and the mounting frame (418) is slidably installed on the rectangular block (47) in the vertical direction.

5. The large-tonnage vehicle frame processing device according to claim 4, characterized in that: A second damping spring (419) sleeved on the positioning rod (417) and the lifting rod (414) is arranged between the mounting frame (418) and the inner wall of the rectangular block (47). A third cylinder (432) is fixedly installed on the top of the connecting plate (415). The output end of the third cylinder (432) is fixedly connected to the lifting rod (414).

6. The large-tonnage vehicle frame processing device according to claim 5, wherein: A fixing disc (422) fixedly mounted on the support frame (2) is sleeved on the outer wall of the positioning shaft (41). A plurality of card slots are formed in the outer wall of the disc (422). A cross bar (423) is fixedly connected to the bottom end of the mounting frame (418). A clamping block (427) adapted to the card slots is fixedly connected to the surface of the cross bar (423). A vertical rod (424) fixedly mounted on the support frame (2) is slidably connected to the cross bar (423). A limiting block (425) is fixedly connected to the top of the vertical rod (424). A third damping spring (426) sleeved on the vertical rod (424) is arranged between the cross bar (423) and the support frame (2).

7. A large-tonnage vehicle frame processing device according to claim 6, characterized in that: Arc-shaped rods (429) are fixedly connected to both sides of the load-bearing frame (1). A movable plate (428) is slidably connected to the arc-shaped rods (429), and the movable plate (428) is fixedly connected to the support frame (2). Second cylinders (430) are fixedly connected to the tops of both sides of the load-bearing frame (1). The output ends of the second cylinders (430) are movably connected to a movable frame (431) which is movably connected to the movable plate (428).

8. The processing technology of a large-tonnage vehicle frame processing device according to any one of claims 1-7, characterized in that: Specifically, it includes the following steps: Step 1: When it is necessary to adjust the left and right angles of the vehicle frame part (5), by starting the second cylinders (430) on both sides of the load-bearing frame (1), the movable plate (428) is driven by the cooperation of the movable frame (431) to slide on the arc-shaped rods (429) and move up and down, so that the movable plate (428) drives the support frame (2), the placement frame (3) and both ends of the vehicle frame part (5) to move up and down, so as to adjust the left and right angles of the vehicle frame part (5); Step 2: When it is necessary to adjust the front and rear angles of the vehicle frame part (5), by starting the third cylinder (432) to drive the lifting rod (414) and the mounting frame (418) to move downward and compress the second damping spring (419), the mounting frame (418) drives the cross bar (423) and the clamping block (427) to move downward synchronously and compress the third damping spring (426), so that the clamping block (427) no longer forms a snap fit with the card slots of the disc (422); Then, by activating the first cylinder (416) to drive the connecting plate (415) to move forward or backward, the connecting plate (415) drives the third cylinder (432), the lifting rod (414), the positioning rod (417), the rectangular block (47), and the mounting bracket (418) to rotate forward or backward. When the rectangular block (47) rotates forward or backward, the rectangular block (47) can drive the mounting shaft (49) and the push rod (410) to move synchronously, so that the push rod (410) cooperates with the mounting block (43) to drive the fixed disk (42), the positioning shaft (41), the placement rack (3), and the vehicle frame part (5) to rotate forward or backward, thereby enabling the adjustment of the front and rear angles of the subsequent welding of the vehicle frame part (5). At the same time, the rectangular block (47) can stretch and compress one of the two reset springs (413) on both sides. Through its own elastic force, the reset spring (413) can assist the subsequent reset of the rectangular block (47), and then the rectangular block (47) drives the push rod (410) to reset through the mounting shaft (49). At this time, under the elastic force of the first damping spring (411), the push rod (410) maintains its position corresponding to the mounting block (43), facilitating the next rotation adjustment of the placement rack (3) and the vehicle frame part (5). Step 3: At this time, after completing the adjustment of the front and rear welding angles of the subsequent vehicle frame part (5), activate the third cylinder (432) to drive the lifting rod (414), the mounting bracket (418), the cross bar (423), and the clamping block (427) to move upward, so that the clamping block (427) engages with the card slot of the disk (422), thereby preventing the subsequent placement rack (3) and the vehicle frame part (5) from rotating during welding.

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