A turning device for guide rail welding

Abstract

The present invention discloses a turnover device for guide rail welding, which relates to the technical field of guide rail processing. It includes a bottom plate, and a frame body is fixedly connected to the bottom plate. A turnover unit is arranged on the frame body; the turnover unit includes a support plate, and a differential assembly is arranged on the support plate. The differential assembly includes a driven gear that can rotate. An eccentric connecting plate is respectively arranged on both sides of the driven gear. Each connecting plate is respectively connected with a first bevel gear through a second rotating shaft, and the first bevel gear is meshed and connected with a second bevel gear. In the present invention, through the setting of the differential assembly, it is allowed to quickly and synchronously turnover two sections of guide rails when needed, improving the welding efficiency. It can also separately control a group of electric push rods for fine adjustment when there is a deviation in the alignment of the welding surfaces of the guide rails, ensuring precise docking.

Description

Technical Field

[0001] The present invention belongs to the technical field of guide rail processing, and specifically relates to a turnover device for guide rail welding. Background Technique

[0002] Guide rails are key components in mechanical systems used to support and guide moving parts along specific paths for linear or curved motion. They are widely used in fields such as industrial automation, robotics, transportation vehicles, and precision machinery. The accuracy, stiffness, and wear resistance of guide rails have an important impact on the operating stability and service life of the system. With the progress of technology, the design and manufacturing techniques of guide rails are continuously optimized to meet the increasing accuracy requirements and the needs of complex application scenarios.

[0003] In the welding operation of guide rails, there are many problems to be solved urgently in traditional turnover devices. First of all, for the welding of large or heavy guide rails, the existing turnover devices cannot simultaneously take into account both the ability to turn two guide rails at the same time and, when the two sections of guide rails are not aligned, the ability to individually turn one guide rail to adjust the welding surface, making the operation complex and time-consuming when the two sections of guide rails need to be turned synchronously to ensure the alignment of the welding surfaces. This seriously affects the welding efficiency. At the same time, when there are slight deviations in the alignment of the guide rail welding surfaces, traditional devices often cannot provide a fine-tuning function, resulting in difficulty in ensuring welding accuracy. In addition, during the turnover process, the guide rail may cause a rotation tendency of the rotating ring due to unstable center of gravity, thereby increasing the burden on the internal tooth grooves and transmission gears and easily causing damage. At the same time, when the drive shaft is subjected to a large torque, it may also exert too much pressure on the output shaft of the AC motor, affecting the stability and durability of the motor. Summary of the Invention

[0004] To solve the problems raised in the above background technique, the present invention proposes a turnover device for guide rail welding.

[0005] The object of the present invention can be achieved through the following technical solutions: A turnover device for guide rail welding, including a bottom plate, a frame body fixedly connected to the bottom plate, and a turnover unit provided on the frame body;

[0006] The turnover unit includes a support plate, a differential assembly is provided on the support plate, the differential assembly includes a driven gear capable of rotating, a connecting plate is eccentrically provided on each side of the driven gear, a first bevel gear is respectively connected to each connecting plate through a second rotating shaft, and the first bevel gear is meshed with a second bevel gear;

[0007] The turnover unit further includes a drive shaft capable of rotating, and each second bevel gear is fixedly connected to the corresponding drive shaft.

[0008] As a further preference of this technical solution: The flipping unit further includes two groups of first locking and braking components arranged on the frame body;

[0009] Each group of the first locking and braking components includes a second transmission gear rotatably connected to the frame body. On both sides of the second transmission gear, a rack is meshed and connected respectively, and a connecting slider is fixedly connected to each rack. A caliper is fixedly connected to the lower end of each connecting slider.

[0010] As a further preference of this technical solution: The flipping unit further includes two groups of flipping components;

[0011] Each group of the flipping components includes an arc-shaped support platform fixedly connected to the bottom plate. A second annular sliding groove is arranged on the arc-shaped support platform. A rotating ring is slidably connected inside the second annular sliding groove. An internal tooth groove is arranged on the inner wall of the rotating ring;

[0012] A first transmission gear meshing with the internal tooth groove is arranged on each driving shaft.

[0013] As a further preference of this technical solution: A brake pad is arranged on the outer wall of each rotating ring, and each brake pad is respectively arranged between two calipers.

[0014] As a further preference of this technical solution: Each group of the first locking and braking components further includes a first connecting rod slidably connected to two symmetrically arranged calipers, and a first spring arranged between the two calipers is sleeved outside the first connecting rod.

[0015] As a further preference of this technical solution: A connecting frame is fixedly connected to the caliper, and a second locking and braking component is arranged on the connecting frame;

[0016] The second locking and braking component includes a sliding sleeve slidably connected to the driving shaft, and an annular platform-shaped push block is fixedly connected to the sliding sleeve.

[0017] As a further preference of this technical solution: The second locking and braking component further includes a circular plate fixedly connected to the frame body through a fixing frame. Grooves arranged in an annular array are arranged on the circular plate. A sliding shaft is fixedly connected to the inside of each groove, and a sliding rod is slidably connected to each sliding shaft. A rubber block is fixedly connected to one end of each sliding rod away from the sliding shaft;

[0018] A second spring is sleeved outside each sliding shaft.

[0019] As a further preference of this technical solution: A second connecting rod is fixedly connected to the circular plate, and an annular frame is fixedly connected to the second connecting rod.

[0020] As a further preference of this technical solution: a clamping jaw is provided on each of the rotating rings.

[0021] As a further preference of this technical solution: the two drive shafts are connected by a sleeve column, and the sleeve column is fixedly connected to the driven gear.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. In the present invention, through the setting of the differential assembly, it is allowed to quickly synchronously flip two sections of guide rails when needed, improving the welding efficiency. It can also, when there is a deviation in the alignment of the welding surfaces of the guide rails, separately control a set of electric push rods for fine adjustment to ensure precise docking.

[0024] 2. In the present invention, through the linkage of the electric push rod, the rack, the second transmission gear and the caliper, the clamping and holding of the brake pads are realized, effectively restricting their speed during rotation and being able to lock them, avoiding welding misalignment or safety hazards, thus significantly improving the quality and stability of the welding operation.

[0025] 3. In the present invention, through the simultaneous locking of the first locking brake assembly and the second locking brake assembly, the locking of the first locking brake assembly on the brake pads can avoid the problem that the rotating ring has a tendency to rotate due to the unstable center of gravity of the guide rail to be welded, which further increases the burden on the internal tooth groove and the first transmission gear and causes damage. At the same time, under the linkage of the first locking brake assembly, the second locking brake assembly locks the drive shaft, reducing the pressure on the output shaft of the AC motor from the source and providing additional locking for the drive shaft, further improving the safety and durability. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0027] Figure 2 is Figure 1 the enlarged schematic diagram at A in

[0028] Figure 3 is a partial structural schematic Figure 1 ;

[0029] Figure 4 is Figure 3 the enlarged schematic diagram at B in

[0030] Figure 5 is a partial structural schematic Figure 2 ;

[0031] Figure 6 is an exploded view of a partial structure of the present invention;

[0032] Figure 7 is Figure 6Enlarged schematic diagram at position C in the figure.

[0033] Legend: 1. Bottom plate; 2. Frame body; 3. Flipping unit; 31. First motor frame; 32. Driving motor; 33. Support plate; 34. Differential assembly; 341. First rotating shaft; 342. Driving gear; 343. Driven gear; 344. First annular chute; 345. Connecting plate; 346. Second rotating shaft; 347. First bevel gear; 348. Second bevel gear; 35. Sleeve column; 36. Driving shaft; 37. Second motor frame; 38. AC motor; 39. Flipping assembly; 391. Arc-shaped support platform; 392. Second annular chute; 393. Rotating ring; 394. Inner tooth groove; 395. First transmission gear; 396. Claw; 310. Brake pad; 311. Electric push rod; 312. First brake locking assembly; 3121. Connecting slider; 3122. Second transmission gear; 3123. Rack; 3124. Caliper; 3125. First connecting rod; 3126. First spring; 313. Connecting frame; 314. Fixed frame; 315. Second brake locking assembly; 3151. Sliding sleeve; 3152. Ring-shaped push block; 3153. Annular frame; 3154. Second connecting rod; 3155. Circular plate; 3156. Slide bar; 3157. Rubber block; 3158. Slide shaft; 3159. Second spring. Detailed implementation mode

[0034] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0035] Embodiment 1:

[0036] Please refer to Figures 1-7, this application provides a flipping device for rail welding, including a bottom plate 1, a frame 2 fixedly connected to the bottom plate 1, and a flipping unit 3 arranged on the frame 2; the flipping unit 3 includes a support plate 33, a differential assembly 34 is arranged on the support plate 33, the differential assembly 34 includes a driven gear 343 that can rotate, which can drive two drive shafts 36 to rotate simultaneously, facilitating the simultaneous flipping of two sections of rails. On both sides of the driven gear 343, there is respectively an eccentrically arranged connecting plate 345. Each connecting plate 345 is respectively connected to a first bevel gear 347 through a second rotating shaft 346. The self-rotation of the first bevel gear 347 will not be affected during the rotation of a single section of the drive shaft 36. The first bevel gear 347 is meshed with a second bevel gear 348. The flipping unit 3 further includes a rotatable drive shaft 36. A support frame is fixedly connected to the frame 2, and the drive shaft 36 is rotatably connected to the support frame to provide support for the drive shaft 36. And the frame 2 is connected to an AC motor 38 through a second motor bracket 37, and there are two AC motors 38. The output end of each AC motor 38 is fixedly connected to the corresponding drive shaft 36 to drive the drive shaft 36 to rotate. Each second bevel gear 348 is respectively fixedly connected to the corresponding drive shaft 36. The flipping unit 3 further includes a drive motor 32 connected to the frame 2 through a first motor bracket 31. The output end of the drive motor 32 is fixedly connected to a first rotating shaft 341, and a driving gear 342 is fixedly connected to the first rotating shaft 341 to drive the driven gear 343 to rotate. A support plate 33 is fixedly connected to the frame 2. A first annular chute 344 is arranged on the driven gear 343, and the lower end of the support plate 33 is slidably connected to the inside of the first annular chute 344. Here, it should be noted that the purpose of setting the support plate 33 and the first annular chute 344 is to provide support for the driven gear 343 while ensuring the rotation of the driven gear 343.

[0037] In this embodiment, the flipping unit 3 further includes two groups of flipping components 39; each group of flipping components 39 includes an arc-shaped support platform 391 fixedly connected to the bottom plate 1, which plays a supporting role. A second annular chute 392 is arranged on the arc-shaped support platform 391. A rotating ring 393 is slidably connected to the inside of the second annular chute 392, which can drive the rail to flip. An internal tooth groove 394 is arranged on the inner wall of the rotating ring 393; a first transmission gear 395 that meshes with the internal tooth groove 394 is arranged on each drive shaft 36 to drive the rotating ring 393 to slide and rotate inside the second annular chute 392.

[0038] In this embodiment, a clamping jaw 396 is arranged on each rotating ring 393 to clamp and fix the rail, facilitating ensuring its stability during the welding process.

[0039] Specifically, starting the drive motor 32 can drive the first rotating shaft 341 to rotate. The first rotating shaft 341 drives the driving gear 342 to rotate, thereby causing the driven gear 343 to rotate. The driven gear 343 drives the connecting plates 345 on both sides thereof to rotate. Each connecting plate 345 drives the first bevel gear 347 to rotate around the second bevel gear 348 through the second rotating shaft 346, thereby driving the two second bevel gears 348 to rotate respectively. The second bevel gear 348 drives the drive shaft 36 to rotate, thereby realizing that the flipping assembly 39 equipped with two sections of guide rails drives the guide rails to rotate simultaneously. Moreover, a single AC motor 38 can be driven to drive the drive shaft 36 at its output end to rotate, thereby driving the corresponding flipping assembly 39 to rotate a single section of the guide rail. Thus, it can be realized that the flipping adjustment of a single section of the guide rail to be welded can be carried out separately, which is convenient for separate adjustment when the welding surfaces of the two sections of guide rails are not aligned during installation. And during the welding process, the two sections of guide rails can be flipped simultaneously and synchronously, effectively avoiding the inefficient process of repeated disassembly and multiple repositioning of the traditional flipping device during the installation of the guide rails. At the same time, the dual-section synchronous flipping ability can complete the operation of multiple welding surfaces at one time on the basis of ensuring the stable alignment of the two sections of guide rails, not only greatly shortening the welding cycle, but also reducing the stress concentration and deformation risk during the welding process through synchronous flipping, ensuring the welding quality and structural strength.

[0040] Embodiment 2:

[0041] On the basis of Embodiment 1, the flipping unit 3 further includes two groups of first locking brake assemblies 312 arranged on the frame 2. Each group of the first locking brake assemblies 312 includes a second transmission gear 3122 rotatably connected to the frame 2. One rack 3123 is meshed and connected to each side of the second transmission gear 3122, and a connecting slider 3121 is fixedly connected to each rack 3123. It should be noted here that a groove for the connecting slider 3121 to slide is provided on the frame 2. A caliper 3124 is fixedly connected to the lower end of each connecting slider 3121. It should be noted here that the contact surface between the caliper 3124 and the brake pad 310 can be made of a material with a large coefficient of friction to make the locking effect better, and the material of this solution is not restricted. The two calipers 3124 are symmetrically arranged to clamp the brake pad 310 to stop its rotation. And an electric push rod 311 is provided on the frame 2. The output end of the electric push rod 311 is fixedly connected to one of the connecting sliders 3121 to drive it to slide along the groove on the frame 2.

[0042] In the above example, a brake pad 310 is provided on the outer wall of each rotating ring 393, and each brake pad 310 is respectively arranged between the two calipers 3124.

[0043] In this embodiment, the two drive shafts 36 are connected by a sleeve column 35. It should be noted here that the drive shafts 36 are rotatably connected inside the sleeve column 35 to connect the two sections of drive shafts 36 together, and the sleeve column 35 is fixedly connected to the driven gear 343.

[0044] In this embodiment, each set of the first lock brake assemblies 312 further includes a first connecting rod 3125 slidably connected to two symmetrically arranged calipers 3124, and a first spring 3126 is sleeved outside the first connecting rod 3125 and arranged between the two calipers 3124. The first spring 3126 is used to push the two connecting sliders 3121 to reset, reducing the power output by the electric push rod 311 and facilitating the reset of the connecting sliders 3121.

[0045] Specifically, the two electric push rods 311 can be driven simultaneously or separately, facilitating locking the two sets of flipping assemblies 39 at the same time or locking one set individually. When the electric push rod 311 pushes one of the connecting sliders 3121 to slide in the groove of the frame body 2, it drives the rack 3123 connected thereto to slide, and then rotates the second transmission gear 3122 to drive the other rack 3123 to rotate in the opposite direction, that is, drives the caliper 3124 to fit and clamp the brake pad 310. Moreover, the clamping force can be adjusted, which can limit the rotation speed of the brake pad 310, ensuring the stability of the brake pad 310 during rotation, preventing welding misalignment or safety hazards caused by excessive rotation. At the same time, it can cooperate with the above-mentioned flipping assembly 39 to enable one of the drive shafts 36 to rotate individually and be locked simultaneously to ensure its stability.

[0046] Embodiment Three:

[0047] On the basis of the second embodiment, a connecting frame 313 is fixedly connected to the caliper 3124, and a second brake locking assembly 315 is arranged on the connecting frame 313; the second brake locking assembly 315 includes a sliding sleeve 3151 slidably connected to the driving shaft 36. The sliding sleeve 3151 is connected to the caliper 3124 through the connecting frame 313. A ring-shaped push block 3152 is fixedly connected to the sliding sleeve 3151. The opening size of one end of the ring-shaped push block 3152 close to the rubber block 3157 is larger than the opening size of the end far from the rubber block 3157. The second brake locking assembly 315 further includes a circular plate 3155 fixedly connected to the frame body 2 through a fixing frame 314 to provide support. The driving shaft 36 passes through the circular plate 3155 and can rotate with the circular plate 3155. The circular plate 3155 is provided with grooves arranged in an annular array for installing sliding shafts 3158. A sliding shaft 3158 is fixedly connected to the inside of each groove, and a sliding rod 3156 is slidably connected to each sliding shaft 3158. A rubber block 3157 is fixedly connected to one end of each sliding rod 3156 far from the sliding shaft 3158. The rubber block 3157 is an arc-shaped block and is also made of a material with a large coefficient of friction for locking the driving shaft 36. A plurality of the rubber blocks 3157 form a ring and are sleeved on the outside of the driving shaft 36. The contact point between the rubber block 3157 and the ring-shaped push block 3152 is set as a smooth arc surface to reduce the coefficient of friction during the process of the ring-shaped push block 3152 pushing the rubber block 3157. A second spring 3159 is sleeved on the outside of each sliding shaft 3158. The second spring 3159 is arranged between the sliding rod 3156 and the circular plate 3155 to facilitate the reset of the sliding rod 3156.

[0048] In this embodiment, a second connecting rod 3154 is fixedly connected to the circular plate 3155, and an annular frame 3153 is fixedly connected to the second connecting rod 3154 to play a role in limiting.

[0049] Specifically, during the process of the caliper 3124 clamping the brake pad 310, it can drive the connecting frame 313 to move. The connecting frame 313 drives the sliding sleeve 3151 to slide on the drive shaft 36. The sliding sleeve 3151 drives the annular table-shaped push block 3152 to push a plurality of rubber blocks 3157 to gather and clamp towards the drive shaft 36. During this process, the sliding rod 3156 slides along the sliding shaft 3158, and the second spring 3159 is stretched. When the locking state is released, it can be driven to reset under the pulling force of the second spring 3159. Thus, while the caliper 3124 clamps the brake pad 310 to ensure that the rotating ring 393 stops rotating, the drive shaft 36 can be locked by a plurality of rubber blocks 3157, providing double guarantee to prevent the uneven distribution of the center of gravity of the welded guide rail, resulting in a tendency for the brake pad 310 to rotate. Furthermore, the locking of the brake pad 310 by the caliper 3124 can reduce the force on the internal tooth groove 394 and the first transmission gear 395, preventing the first transmission gear 395 and the internal tooth groove 394 from being damaged. At the same time, the drive shaft 36 is locked by the rubber blocks 3157 to protect the AC motor 38 from being damaged.

[0050] The above embodiments are only used to illustrate the technical method of the present invention and not to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical method of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A turnover device for guide rail welding, comprising a bottom plate (1), wherein a frame body (2) is fixedly connected to the bottom plate (1), and it is characterized in that: A turning unit (3) is provided on the frame body (2); The turning unit (3) includes a support plate (33). A differential assembly (34) is provided on the support plate (33). The differential assembly (34) includes a rotatable driven gear (343). A connecting plate (345) is eccentrically provided on each side of the driven gear (343). Each connecting plate (345) is connected to a first bevel gear (347) through a second rotating shaft (346). The first bevel gear (347) is meshed and connected to a second bevel gear (348); The turning unit (3) further includes a rotatable drive shaft (36). Each second bevel gear (348) is fixedly connected to the corresponding drive shaft (36); The turning unit (3) further includes two groups of first brake locking assemblies (312) provided on the frame body (2); Each group of the first brake locking assemblies (312) includes a second transmission gear (3122) rotatably connected to the frame body (2). A rack (3123) is meshed and connected to each side of the second transmission gear (3122). A connecting slider (3121) is fixedly connected to each rack (3123). A caliper (3124) is fixedly connected to the lower end of each connecting slider (3121); The turning unit (3) further includes two groups of turning assemblies (39); Each group of the turning assemblies (39) includes an arc-shaped support platform (391) fixedly connected to the bottom plate (1). A second annular sliding groove (392) is provided on the arc-shaped support platform (391). A rotating ring (393) is slidably connected inside the second annular sliding groove (392). An internal tooth groove (394) is provided on the inner wall of the rotating ring (393); A first transmission gear (395) meshed with the internal tooth groove (394) is provided on each drive shaft (36); The turning unit (3) further includes a drive motor (32) connected to the frame body (2) through a first motor bracket (31). The output end of the drive motor (32) is fixedly connected to a first rotating shaft (341). A driving gear (342) is fixedly connected to the first rotating shaft (341) for driving the driven gear (343) to rotate; The frame body (2) is connected to an AC motor (38) through a second motor bracket (37). And there are two AC motors (38). The output end of each AC motor (38) is fixedly connected to the corresponding drive shaft (36).

2. The turnover device for guide rail welding according to claim 1, wherein, A brake pad (310) is provided on the outer wall of each rotating ring (393). And each brake pad (310) is respectively arranged between two calipers (3124).

3. The flipping device for rail welding according to claim 2, wherein, Each group of the first brake locking assemblies (312) further includes a first connecting rod (3125) slidably connected to two symmetrically arranged calipers (3124). And a first spring (3126) arranged between the two calipers (3124) is sleeved outside the first connecting rod (3125).

4. A turnover device for guide rail welding according to claim 3, characterized in that, A connecting frame (313) is fixedly connected to the caliper (3124), and a second brake locking assembly (315) is arranged on the connecting frame (313); The second brake locking assembly (315) includes a sliding sleeve (3151) slidably connected to the drive shaft (36), and an annular platform-shaped push block (3152) is fixedly connected to the sliding sleeve (3151).

5. A turnover device for rail welding according to claim 4, characterized in that, The second brake locking assembly (315) further includes a circular plate (3155) fixedly connected to the frame body (2) through a fixing frame (314). Grooves arranged in an annular array are provided on the circular plate (3155). A sliding shaft (3158) is fixedly connected to the inside of each groove, and a sliding rod (3156) is slidably connected to each sliding shaft (3158). A rubber block (3157) is fixedly connected to one end of each sliding rod (3156) away from the sliding shaft (3158); A second spring (3159) is sleeved outside each sliding shaft (3158).

6. The turnover device for rail welding according to claim 5, wherein, A second connecting rod (3154) is fixedly connected to the circular plate (3155), and an annular frame (3153) is fixedly connected to the second connecting rod (3154).

7. A turnover device for guide rail welding according to claim 3, characterized in that, A clamping jaw (396) is arranged on each rotating ring (393).

8. A turnover device for guide rail welding according to claim 1, characterized in that, The two drive shafts (36) are connected by a sleeve column (35), and the sleeve column (35) is fixedly connected to the driven gear (343).

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