Self-adaptive roller carrier

Abstract

The utility model discloses a self-adaptive roller carrier, which particularly relates to the technical field of roller carriers and comprises a bottom frame, a plurality of limiting plates are fixedly connected to the bottom of the bottom frame, a positioning seat is fixedly connected to the inner side of the bottom frame, and two support mechanisms are arranged on the outer side of the bottom frame. The support mechanism comprises two first rotating seats, the outer sides of the first rotating seats are rotationally connected with the outer sides of the positioning seats, first supports are rotationally connected with the outer sides of the first rotating seats, first rotating shafts are fixedly connected with the inner sides of the first supports, and rotating cylinders are rotationally connected with the outer sides of the first rotating shafts. The multi-roller rotatable design is adopted, when a single roller is damaged, rapid replacement and adjustment can be achieved, the number of supporting points at the bottom of a workpiece is increased through the opposite roller sets, and supporting stability in the welding process is guaranteed; the number of turns of rotation of the rotary table is displayed in real time by combining a high-precision counter and a bevel gear, rapid configuration is achieved through preset parameters, the downtime is shortened, meanwhile, precise adjustment of the distance between the roller carriers is achieved through thread transmission, and the use efficiency of the self-adaptive roller carriers is improved.

Description

Technical Field

[0001] This utility model relates to the field of roller frame technology, and more specifically, to an adaptive roller frame. Background Technology

[0002] Welding roller frames are devices that use the friction between the weldment and the drive roller to rotate cylindrical (or conical) weldments. They are mainly used on a series of large machines in heavy industry. Adjustable welding roller frames can adjust the center distance of the rollers through reserved screw holes or lead screws to adapt to changes in workpiece diameter. The drive uses a cycloidal pinwheel reducer or a worm gear reducer, with dual motor drive.

[0003] The existing welding roller frame does not have a lifting device. When welding objects with small radii, a crane is needed to place the roller frame on a higher platform for welding, which is time-consuming and labor-intensive. It is also difficult to adjust the height and relies on forklifts or special moving tools for movement, which wastes a lot of time and reduces work efficiency.

[0004] A search revealed a Chinese patent (CN214868249U) disclosing a welding roller frame. This utility model incorporates a lifting device. When the lifting switch is turned on and the control panel is adjusted, the hydraulic cylinder extends, causing the second fixed rod to rise under pressure. This causes the second sliding rod to slide to the right on the surface of the load-bearing plate, raising the second lifting rod. The rise of the second lifting rod drives the rotation of the connecting column, simultaneously raising the first lifting rod. The first lifting rod then slides to the right on the surface of the lifting base plate, raising the load-bearing plate and consequently the roller frame. Traditional welding roller frames lack a lifting device. When welding objects with small radii, a crane is needed to place the roller frame on a high platform for welding, which is time-consuming, labor-intensive, and difficult to adjust the height, resulting in low work efficiency. This new device effectively avoids these problems and improves usability.

[0005] However, in actual use, the roller frame can be damaged due to the heavy weight of some workpieces. This can cause the rollers to be subjected to significant pressure while supporting the workpieces, requiring the welding of the workpieces to be stopped and the roller frame to be repaired or replaced. This process takes time and significantly affects the processing efficiency of the workpieces. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides an adaptive roller frame to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An adaptive roller frame includes a base frame. Multiple limiting plates are fixedly connected to the bottom of the base frame. A positioning seat is fixedly connected to the inner side of the base frame. Two support mechanisms are provided on the outer side of the base frame. Each support mechanism includes two rotating seats, the outer sides of which are rotatably connected to the outer sides of the positioning seats. A support is rotatably connected to the outer side of each rotating seat. A rotating shaft is fixedly connected to the inner side of each support. A rotating cylinder is rotatably connected to the outer side of the rotating shaft. Two triangular frames are fixedly connected to the outer side of the rotating cylinder. Multiple limiting holes are provided on the outer side of each triangular frame. Three rollers are rotatably connected to the outer side of each triangular frame. An outer cylinder is fixedly connected to the outer side of a bracket. A spring is fixedly connected to the inner side of the outer cylinder. An insert rod is sleeved on the inner side of the spring. A push block is fixedly connected to the outer side of the insert rod. The outer side of the push block is slidably connected to the inner side of the outer cylinder. One end of the insert rod is inserted into the inner side of a limiting hole. A rotating shaft is fixedly connected to the inner side of the first bracket. Two second brackets are rotatably connected to the outer side of the second rotating shaft. A second rotating seat is rotatably connected to the inner side of the second bracket. A guide block is fixedly connected to one side of the second rotating seat. The outer side of the guide block is slidably connected to the inner side of the base frame. A roller is rotatably connected to the bottom of the guide block. An adjustment mechanism is provided on the inner side of the base frame.

[0009] By adopting the above technical solution, the rotation of two sets of tripods and three rollers can be used to adjust the rotation of damaged tripods in a timely manner, thereby improving the practicality of the self-adaptive roller frame, increasing the support points for the workpiece, and enhancing the welding stability of the workpiece.

[0010] As a further description of the above technical solution: the adjustment mechanism includes a high-precision counter, the bottom of which is fixedly connected to the top of the base frame, a bevel gear fixedly connected to one end of the high-precision counter, a rotating rod rotatably connected to the inner side of the base frame, two threads on the outer side of the rotating rod, the outer threads being threadedly connected to the inner side of the guide block, a servo motor fixedly connected to one end of the rotating rod, a turntable fixedly connected to the other end of the rotating rod, multiple toothed grooves on one side of the turntable, and a handle rotatably connected to one side of the turntable.

[0011] By adopting the above technical solution, the roller is driven manually and electrically using a turntable and a servo motor. A high-precision counter and bevel gear are used to record the number of rotations of the turntable, and the transmission distance of the rotating rod and thread to the guide block is recorded, so as to support different workpieces in the future.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] By setting up a support mechanism, compared with the existing technology, multiple rollers can be rotated and repositioned, so that if one roller is damaged, it can be adjusted in time to maintain continuous support for the workpiece. Furthermore, two opposing sets of rollers support the bottom of the workpiece, increasing the support force points at the bottom of the workpiece and maintaining the stability of the support during the welding process.

[0014] By setting up an adjustment mechanism, compared with existing technologies, a high-precision counter and bevel gear are used to record and display the number of rotations of the turntable. This allows for rapid equipment configuration through preset parameters, reducing downtime. Furthermore, the use of threaded transmission makes the spacing adjustment of the roller frame more precise, improving the efficiency of the adaptive roller frame. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the left side structure of this utility model.

[0017] Figure 3 This is a partial schematic diagram of the connection between bracket one and bracket two of this utility model.

[0018] Figure 4 This is a partial schematic diagram of the connection between the rotating drum and the tripod of this utility model.

[0019] Figure 5 This is a partial schematic diagram of the connection between the base frame and the positioning seat of this utility model.

[0020] Figure 6 This is a partial schematic diagram of the connection between the rotating rod and the turntable of this utility model.

[0021] The attached diagram is labeled as follows: 1. Base frame; 2. Limiting plate; 3. Positioning seat; 4. Rotary seat one; 5. Support one; 6. Rotating shaft one; 7. Rotating cylinder; 8. Tripod; 9. Limiting hole; 10. Roller; 11. Spring; 12. Insert rod; 13. Rotating shaft two; 14. Support two; 15. Rotary seat two; 16. Guide block; 17. Roller; 18. High-precision counter; 19. Bevel gear; 20. Rotating rod; 21. Thread; 22. Servo motor; 23. Turntable; 24. Gear groove; 25. Handle; 26. Outer cylinder; 27. Push block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] The embodiments disclosed in this application are as follows: Figure 1-6 The adaptive roller frame shown includes a base frame 1. Multiple limiting plates 2 are fixedly connected to the bottom of the base frame 1. A positioning seat 3 is fixedly connected to the inner side of the base frame 1. Two support mechanisms are provided on the outer side of the base frame 1. Each support mechanism includes two rotating seats 4, whose outer sides are rotatably connected to the outer sides of the positioning seats 3. A support 5 is rotatably connected to the outer side of the rotating seats 4. A rotating shaft 6 is fixedly connected to the inner side of the support 5. A rotating cylinder 7 is rotatably connected to the outer side of the rotating shaft 6. Two triangular frames 8 are fixedly connected to the outer side of the rotating cylinder 7. Multiple limiting holes 9 are provided on the outer side of the triangular frames 8. Three rollers 10 are rotatably connected to the outer side of the triangular frames 8. An outer cylinder 26 is fixedly connected to the outer side of the support 5. A spring 11 is fixedly connected to the inner side of the outer cylinder 26. A plug rod 12 is sleeved inside the spring 11. A push block 27 is fixedly connected to the outer side of the plug rod 12. The outer side of block 27 is slidably connected to the inner side of outer cylinder 26. One end of the insertion rod 12 is inserted into the inner side of the limiting hole 9. The inner side of bracket 15 is fixedly connected to the rotating shaft 23. The outer side of the rotating shaft 23 is rotatably connected to two brackets 24. The inner side of brackets 24 is rotatably connected to the rotating seat 25. One side of the rotating seat 215 is fixedly connected to the guide block 16. The outer side of the guide block 16 is slidably connected to the inner side of the base frame 1. The bottom of the guide block 16 is rotatably connected to the roller 17. An adjustment mechanism is provided on the inner side of the base frame 1. Pulling the insertion rod 12 causes the spring 11 to be compressed, so that one end of the insertion rod 12 can be separated from the limiting hole 9 on one side of the tripod 8, thereby rotating the tripod 8 and the rotating cylinder 7 to rotate and change the position of the three rollers 10, and using multiple rollers 10 to provide multi-point support for the bottom of the workpiece.

[0024] Reference Figure 1 , Figure 5 and Figure 6As shown, the adjustment mechanism includes a high-precision counter 18, the bottom of which is fixedly connected to the top of the base frame 1. One end of the high-precision counter 18 is fixedly connected to a bevel gear 19. A rotating rod 20 is rotatably connected to the inner side of the base frame 1. Two threads 21 are provided on the outer side of the rotating rod 20. The outer side of the threads 21 is threadedly connected to the inner side of the guide block 16. A servo motor 22 is fixedly connected to one end of the rotating rod 20, and a turntable 23 is fixedly connected to the other end of the rotating rod 20. Multiple toothed grooves 24 are provided on one side of the turntable 23. A handle 25 is rotatably connected to one side of the turntable 23. The toothed grooves 24 on one side of the turntable 23 mesh with the bevel gear 19 to enable the high-precision counter 18 to record the number of rotations of the turntable 23. This allows the rotating rod 20 and the threads 21 to perform threaded transmission to the two guide blocks 16. The servo motor 22 can drive the rotating rod 20 and the threads 21 to quickly reach the preset number of rotations according to the number of rotations of the turntable 23, thereby adjusting the distance between the two sets of rollers 10 in a timely manner.

[0025] The working principle of this utility model is as follows: Before welding workpieces of different diameters, multiple adaptive roller frames with multiple parameters are selected according to the length of the workpiece, and multiple base frames 1 are fixed by multiple limiting plates 2 at the bottom of the base frame 1. Then, according to the diameter of the workpiece, the handle 25 is pushed to drive the turntable 23 and the rotating rod 20 to rotate. Then, the two threads 21 on the outer side of the rotating rod 20 drive the two guide blocks 16 to move in opposite directions on the inner side of the base frame 1. The multiple tooth grooves 24 on one side of the turntable 23 mesh with the bevel gear 19 at the bottom of the high-precision counter 18. Then, through the rotation of the bevel gear 19, the high-precision counter is driven to rotate. 18 can record the number of rotations of turntable 23 and display the number of rotations of turntable 23 through high-precision counter 18. Then, the two guide blocks 16 drive the corresponding brackets 14 through the two outer rotating seats 15 to push the rotating shaft 13 and the two brackets 5. Then, the two brackets 5 can rotate inside the positioning seat 3 through the two bottom rotating seats 4, so that the distance between the rotating shaft 6 and the rotating cylinder 7 at the top of the two brackets 5 can be adjusted. Then, the two triangular frames 8 and multiple rollers 10 on the outer side of the two rotating cylinders 7 can form a support. Then, the workpiece is placed in the middle of the multiple rollers 10, so that the multiple rollers 10 can form multi-point support for the bottom of the workpiece.

[0026] When welding heavier workpieces, if a single roller 10 fails to rotate, the two insert rods 12 on the outer side of the corresponding bracket 5 can be pulled, thereby causing the corresponding push block 27 to compress the spring 11. This allows one end of the insert rod 12 to separate from the inner side of the limiting hole 9 on the outer side of the two tripods 8. Then, the corresponding tripods 8 and the rotating drum 7 can be pushed to rotate on the outer side of the rotating shaft 6, causing the two rollers 10 to rotate to one side. After that, the pull on the insert rod 12 is released again, and under the push of the spring 11, one end of the insert rod 12 is re-inserted into the limiting hole 9, allowing the two tripods 8 to be repositioned. Finally, the servo motor 22 can drive the rotating rod 20 to rotate quickly, thereby achieving rapid adaptive adjustment of the two brackets and completing the rolling support for workpieces of different diameters.

[0027] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are not shown in the figures because they are existing technologies, and will not be described here.

[0028] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An adaptive roller frame, including a base frame (1), characterized in that: The bottom of the base frame (1) is fixedly connected to multiple limiting plates (2), the inner side of the base frame (1) is fixedly connected to a positioning seat (3), and the outer side of the base frame (1) is provided with two support mechanisms; The support mechanism includes two rotating seats (4), the outer side of the rotating seat (4) is rotatably connected to the outer side of the positioning seat (3), the outer side of the rotating seat (4) is rotatably connected to a support (5), the inner side of the support (5) is fixedly connected to a rotating shaft (6), the outer side of the rotating shaft (6) is rotatably connected to a rotating cylinder (7), the outer side of the rotating cylinder (7) is fixedly connected to two tripods (8), the outer side of the tripods (8) is provided with multiple limiting holes (9), and the outer side of the tripods (8) is rotatably connected to three rollers (10). An adjustment mechanism is provided on the inner side of the base frame (1).

2. The adaptive roller frame according to claim 1, characterized in that: An outer cylinder (26) is fixedly connected to the outside of the bracket (5), and a spring (11) is fixedly connected to the inside of the outer cylinder (26). A plug rod (12) is sleeved on the inside of the spring (11).

3. The adaptive roller frame according to claim 2, characterized in that: A push block (27) is fixedly connected to the outside of the insertion rod (12). The outside of the push block (27) is slidably connected to the inside of the outer cylinder (26). One end of the insertion rod (12) is inserted into the inside of the limiting hole (9).

4. The adaptive roller frame according to claim 1, characterized in that: The inner side of the bracket 1 (5) is fixedly connected to the rotating shaft 2 (13), and the outer side of the rotating shaft 2 (13) is rotatably connected to two brackets 2 (14). The inner side of the bracket 2 (14) is rotatably connected to the rotating seat 2 (15), and the side of the rotating seat 2 (15) is fixedly connected to the guide block (16). The outer side of the guide block (16) is slidably connected to the inner side of the base frame (1), and the bottom of the guide block (16) is rotatably connected to the roller (17).

5. The adaptive roller frame according to claim 1, characterized in that: The adjustment mechanism includes a high-precision counter (18), the bottom of which is fixedly connected to the top of the base frame (1), and a bevel gear (19) is fixedly connected to one end of the high-precision counter (18).

6. The adaptive roller frame according to claim 1, characterized in that: The base frame (1) is rotatably connected to a rotating rod (20). The rotating rod (20) has two threads (21) on its outer side. The outer side of the threads (21) is threaded to the inner side of the guide block (16). One end of the rotating rod (20) is fixedly connected to a servo motor (22).

7. The adaptive roller frame according to claim 6, characterized in that: The other end of the rotating rod (20) is fixedly connected to a turntable (23). The turntable (23) has multiple toothed grooves (24) on one side and a handle (25) is rotatably connected to one side of the turntable (23).

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