Multi-bearing welding device

Abstract

The utility model discloses a multi-bearing welding device, which relates to the technical field of welding equipment, and comprises a fixing assembly and a plurality of bearings, the fixing assembly comprises a fixing cylinder and a rotating cylinder, and the rotating cylinder is positioned in the fixing cylinder. The multiple bearings are located between the fixed cylinder and the rotating cylinder, outer rings of the multiple bearings are connected to the inner wall of the fixed cylinder, and inner rings of the multiple bearings are connected to the outer wall of the rotating cylinder, so that the rotating cylinder is rotationally connected to the fixed cylinder through the multiple bearings. The laser assembly comprises a laser head which is connected with the rotary drum. The laser head is arranged on the rotary drum, and the rotary drum is rotationally connected to the fixed drum through the bearings, so that the laser head can rotate through the bearings to adjust the laser emission angle, and welding work with high difficulty is completed. Due to the fact that the multiple bearings can bear the weight of the laser head together, the bearings are not prone to deformation after being used for a long time, and work of the laser head is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of welding equipment, and particularly relates to a multi-bearing welding device. Background Art

[0002] With the rapid development of the automotive industry, the styles and shapes of automobiles are becoming more and more diverse and personalized, and the product replacement of sedans is getting faster and faster. Therefore, the shapes of automotive outer panels are also complex and changeable, resulting in complex manufacturing processes, high precision requirements, and continuous innovation in technical details. Automotive outer panels are usually composed of multiple components connected by welding. For different types of automobiles, the sizes of automotive outer panels and the number of components are inconsistent.

[0003] The prior art with the publication number of CN209936113U discloses a laser welding mechanism, including a stepping motor. The output shaft of the stepping motor is fixedly connected to a first spur gear. The first spur gear meshes with a second spur gear. The second spur gear is rotationally connected to a fixed shaft. Above the second spur gear, a connection component is fixed. Above the connection component, a first connecting arm is key-connected to the fixed shaft. The other end of the connection component is rotationally connected to a rotating shaft. At the bottom of the rotating shaft, a connection block is key-connected. A thin cylinder is fixed on the connection block. The bottom of the thin cylinder is connected to a laser welding head. Above the rotating shaft, a second connecting arm is key-connected. The first connecting arm is rotationally connected to a first joint bearing. The second connecting arm is rotationally connected to a second joint bearing. The first joint bearing and the second joint bearing are threadedly connected to both ends of a connecting rod.

[0004] However, the laser welding equipment in the prior art still has defects. For example, the laser head can usually only be driven to move in three-dimensional space by a three-dimensional mechanism and cannot be driven to rotate, resulting in limited movement range of the laser head. Even for the prior art that can rotate the laser head, usually only a simple rotating shaft is used to connect the laser head. After long-term use, the rotating shaft is prone to deformation and offset, affecting the operation of the laser head. Summary of the Utility Model

[0005] The purpose of the utility model is to overcome the above technical deficiencies, and provide a multi-bearing welding device to solve the technical problems in the prior art that the laser head can usually only be driven to move in three-dimensional space by a three-dimensional mechanism and cannot be driven to rotate, resulting in limited movement range of the laser head. Even for the prior art that can rotate the laser head, usually only a simple rotating shaft is used to connect the laser head. After long-term use, the rotating shaft is prone to deformation and offset, affecting the operation of the laser head.

[0006] To achieve the above technical purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a multi-bearing welding device, including:

[0008] A fixing component, including a fixing cylinder and a rotating cylinder, the rotating cylinder is located inside the fixing cylinder;

[0009] A plurality of bearings are located between the fixing cylinder and the rotating cylinder. The outer rings of the plurality of bearings are all connected to the inner wall of the fixing cylinder, and the inner rings of the plurality of bearings are connected to the outer wall of the rotating cylinder, so that the rotating cylinder is rotationally connected to the fixing cylinder through the plurality of bearings; and

[0010] A laser component, including a laser head, the laser head is connected to the rotating cylinder.

[0011] In some embodiments, the number of the bearings is two, and the two bearings are respectively arranged near both ends of the fixing cylinder.

[0012] In some embodiments, the fixing cylinder includes a cylinder body, a first mounting ring and a second mounting ring. The first mounting ring and the second mounting ring are respectively detachably connected to both ends of the cylinder body by screws, and the first mounting ring and the second mounting ring are respectively connected to the outer rings of the two bearings.

[0013] In some embodiments, the fixing component further includes a fixing plate, the fixing plate is located between the first mounting ring and the cylinder body. The multi-bearing welding device further includes a driving component arranged on the fixing plate, and the driving component is connected to the rotating cylinder and used to drive the rotating cylinder to rotate.

[0014] In some embodiments, the driving component includes a driving motor, a transmission chain and a passive gear. The passive gear is fixedly sleeved on the rotating cylinder, and the transmission chain is simultaneously connected to the driving motor and the passive gear, so that the driving motor can drive the passive gear to rotate through the transmission chain.

[0015] In some embodiments, the laser component includes a fixing bracket and a driving motor, a lead screw, a slide rail and a slider arranged on the fixing bracket. The slider is slidably arranged on the slide rail, the laser head is connected to the slider, the lead screw is threadedly penetrated through the slider, the driving motor is connected to the lead screw and used to drive the lead screw to rotate, and the fixing bracket is connected to the rotating cylinder.

[0016] In some embodiments, the laser component further includes a wire feeding member arranged on the fixing bracket, and an outlet of the wire feeding member is located on a laser irradiation path of the laser head.

[0017] In some embodiments, the laser component further includes a suction pipe and a suction pump arranged on the fixing bracket. An inlet of the suction pipe is arranged near the laser head, and an outlet of the suction pipe is connected to the suction pump.

[0018] In some embodiments, the multi-bearing welding device further includes a first slideway mechanism and a second slideway mechanism, and two sides of the fixing plate are respectively slidably connected to the first slideway mechanism and the second slideway mechanism.

[0019] In some embodiments, the multi-bearing welding device further includes a sliding motor and a movable block. The first slideway mechanism includes a track and a fixed rack. The fixed rack is arranged on the track and is parallel to the track. The movable block is slidably arranged on the track and is connected to the fixing plate. The sliding motor is arranged on the fixing plate. The sliding motor includes a driving gear and meshes with the fixed rack through the driving gear.

[0020] Compared with the prior art, in the multi-bearing welding device provided by the present utility model, the laser head is arranged on the rotating cylinder, and the rotating cylinder is rotatably connected to the fixed cylinder through a plurality of bearings, so that the laser head can rotate through the plurality of bearings to adjust the laser emission angle, thereby completing some welding work with higher difficulty. Since the plurality of bearings can jointly bear the weight of the laser head, the bearings are not easily deformed after being used for a long time, which affects the work of the laser head. Moreover, the laser head can rotate smoothly through the plurality of bearings, and the working accuracy is high. Description of the Drawings

[0021] Figure 1 is a schematic structural diagram of the multi-bearing welding device provided by an embodiment of the present utility model from one perspective;

[0022] Figure 2 is a schematic structural diagram of the multi-bearing welding device provided by an embodiment of the present utility model from another perspective;

[0023] Figure 3 is a schematic structural diagram of the laser assembly provided by an embodiment of the present utility model;

[0024] Figure 4 is an exploded schematic diagram of the laser assembly provided by an embodiment of the present utility model. Detailed Embodiments

[0025] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model, and are not used to limit the present utility model.

[0026] In order to solve the technical problem that in the prior art, a laser head can usually only be driven to move in a three-dimensional space through a three-dimensional mechanism and cannot be driven to rotate, resulting in limited movement range of the laser head. Even in the prior art that can rotate the laser head, usually only a simple rotating shaft is used to connect the laser head. After a long time of use, the rotating shaft is prone to deformation and offset, affecting the work of the laser head, the present utility model provides a multi-bearing welding device, which can realize the installation of the laser head through multiple bearings and can rotate through multiple bearings. Even after a long time of use, the bearings are not prone to deformation, and the laser head can maintain stable and high-precision work.

[0027] Please refer to Figures 1 to 4 , Figure 1 and Figure 2 which are the structural schematic diagrams of the multi-bearing welding device in an embodiment of the present utility model. The multi-bearing welding device includes a fixing component 1, multiple bearings 2 and a laser component 3. The fixing component 1 includes a fixing cylinder 11 and a rotating cylinder 12. The rotating cylinder 12 is located inside the fixing cylinder 11, and both ends of the rotating cylinder 12 extend from both ends of the fixing cylinder 11. Multiple bearings 2 are located between the fixing cylinder 11 and the rotating cylinder 12. The outer rings of the multiple bearings 2 are all connected to the inner wall of the fixing cylinder 11, and the inner rings of the multiple bearings 2 are connected to the outer wall of the rotating cylinder 12, so that the rotating cylinder 12 is rotationally connected to the fixing cylinder 11 through the multiple bearings 2. The laser component 3 includes a laser head 31, which is used to emit laser to weld a target workpiece. The laser head 31 is connected to the rotating cylinder 12, and the rotating cylinder 12 is rotationally connected to the fixing cylinder 11 through the multiple bearings 2. It can be understood that the laser head 31 is rotationally connected to the fixing cylinder 11 through the multiple bearings 2. The multiple bearings 2 can jointly bear the weight of the laser head 31, so that even after a long time of use, a single bearing 2 is not prone to deformation and affect the work of the laser head 31. In addition, the laser head 31 can rotate smoothly through the multiple bearings 2, and the work is stable.

[0028] In one of the embodiments, please refer to Figure 4 , the number of bearings 2 is two, and the two bearings 2 are respectively arranged near both ends of the fixing cylinder 11. In this embodiment, only setting two bearings 2 can help save costs. In addition, setting the two bearings 2 at both ends of the fixing cylinder 11 makes the bearing force on the laser head 31 more dispersed and can support the laser head 31 more stably. In other embodiments, the number of bearings 2 is not limited. For example, the bearings 2 can also be set to three or more, and the multiple bearings 2 can be arranged at intervals along the axial direction of the rotating cylinder 12.

[0029] In one of the embodiments, please refer to Figure 4, the fixing cylinder 11 includes a cylinder body 111, a first mounting ring 112 and a second mounting ring 113. The first mounting ring 112 and the second mounting ring 113 are respectively detachably connected to both ends of the cylinder body 111 by screws, and the first mounting ring 112 and the second mounting ring 113 are respectively connected to the outer rings of the two bearings 2. In this embodiment, the two bearings 2 can be disassembled and assembled through the first mounting ring 112 and the second mounting ring 113. When disassembling, only one of the first mounting ring 112 and the second mounting ring 113 needs to be disassembled, so as to facilitate the replacement of the bearing 2 and the operation is convenient.

[0030] In one embodiment, please refer to Figure 3 , the fixing assembly 1 further includes a fixing plate 13. The fixing plate 13 is located between the first mounting ring 112 and the cylinder body 111. A through hole is formed through the fixing plate 13 along its thickness direction. The screw sequentially passes through the first mounting ring 112 and the through hole and is threadedly connected to the cylinder body 111, thereby mounting and fixing the fixing plate 13. The multi-bearing welding device further includes a driving assembly 4 provided on the fixing plate 13. The driving assembly 4 is connected to the rotating cylinder 12 and is used to drive the rotating cylinder 12 to rotate. When the rotating cylinder 12 rotates, it can drive the laser head 31 to rotate. In this embodiment, the laser head 31 is not located at the rotation center of the rotating cylinder 12, so the laser head 31 can perform eccentric rotation, so that the movement range of the laser head 31 is larger and welding at multiple positions can be performed.

[0031] In one embodiment, please refer to Figure 3 , the driving assembly 4 includes a driving motor 41, a transmission chain (not shown in the figure) and a passive gear 42. The passive gear 42 is fixedly sleeved on the rotating cylinder 12 and can be specifically connected to the rotating cylinder 12 by screws. The transmission chain is connected to the driving motor 41 and the passive gear 42 at the same time, so that when the driving motor 41 works, it can drive the transmission chain to rotate. The transmission chain drives the passive gear 42 to rotate. When the passive gear 42 rotates, it can drive the laser assembly 3 to rotate to adjust the laser emission angle of the laser head 31.

[0032] In one embodiment, please refer to Figure 4 , the laser assembly 3 includes a fixing bracket 36 and a driving motor 32, a lead screw 33, a slide rail 34 and a slider 35 provided on the fixing bracket 36. The slider 35 is slidably arranged on the slide rail 34. The laser head 31 is connected to the slider 35. The lead screw 33 is threadedly passed through the slider 35. The driving motor 32 is connected to the lead screw 33 and is used to drive the lead screw 33 to rotate. The fixing bracket 36 is connected to the rotating cylinder 12. In this embodiment, the driving motor 32 can drive the lead screw 33 to rotate, so that the lead screw 33 drives the slider 35 to move up and down through thread fit, so that the slider 35 drives the laser head 31 to move up and down to adjust the height of the laser head 31.

[0033] In one embodiment, please refer to Figure 3, the laser assembly 3 further includes a wire feeder 37 disposed on the fixed bracket 36. The wire feeder 37 is disposed obliquely downward, and the outlet of the wire feeder 37 is located on the laser irradiation path of the laser head 31. In this embodiment, the wire feeder 37 can output a welding wire to the part of the workpiece to be welded, for example, output a welding wire to the gap between two parts. While the welding wire is being output, the laser head 31 also irradiates the welding wire, so that the welding wire connects the two parts to complete the welding work.

[0034] In one embodiment, please refer to Figure 3 , the laser assembly 3 further includes a suction pipe 38 disposed on the fixed bracket 36 and a suction pump (not shown in the figure). The inlet of the suction pipe 38 is disposed close to the laser head 31, and the outlet of the suction pipe 38 is connected to the suction pump. In this embodiment, when the laser head 31 emits laser for welding the workpiece, it will cause the workpiece to generate smoke. The suction pump can be turned on to drive the suction pipe 38 to adsorb the smoke near the laser head 31 and perform centralized treatment to avoid smoke polluting the environment.

[0035] In one embodiment, please refer to Figure 1 , the multi-bearing welding device further includes a first slideway mechanism 5 and a second slideway mechanism 6 with the same structure. Both sides of the fixing plate 13 are slidably connected to the first slideway mechanism 5 and the second slideway mechanism 6 respectively. The laser assembly 3 can slide along the first slideway mechanism 5 and the second slideway mechanism 6 through the fixing plate 13 to adjust the position of the laser head 31. The laser assembly 3 of this embodiment can slide on the slideway mechanisms 6 on both sides at the same time. Compared with the embodiment that only slides on one slideway mechanism 6, this embodiment is not easy to cause the slideway mechanism 6 to deform after long-term use.

[0036] In one embodiment, please refer to Figure 2 , the multi-bearing welding device further includes a sliding motor 7 and a movable block 8. The first slideway mechanism 5 includes a track 51 and a fixed rack 52. The fixed rack 52 is disposed on the track 51 and is parallel to the track 51. The movable block 8 is slidably disposed on the track 51 and is connected to the fixing plate 13. The sliding motor 7 is disposed on the fixing plate 13. The sliding motor 7 includes a driving gear 71 and meshes with the fixed rack 52 through the driving gear 71. In this embodiment, when the sliding motor 7 is working, it can drive the driving gear 71 to rotate. The driving gear 71 reciprocates relative to the fixed rack 52 through meshing to drive the fixing plate 13 and the laser assembly 3 located on the fixing plate 13 to reciprocate, so as to adjust the position of the laser head 31.

[0037] For a better understanding of the present invention, the following combines Figures 1 to 4 to describe the technical solution of the present invention in detail:

[0038] The laser head 31 of the multi-bearing welding device provided by the utility model is arranged on the rotating cylinder 12. The rotating cylinder 12 is rotatably connected to the fixed cylinder 11 through a plurality of bearings 2, so that the laser head 31 can rotate through the plurality of bearings 2 to adjust the laser emission angle, thereby completing some welding work with higher difficulty. Since the plurality of bearings 2 can jointly bear the weight of the laser head 31, the bearings 2 are not easily deformed even after being used for a long time, which affects the work of the laser head 31. Moreover, the laser head 31 can rotate smoothly through the plurality of bearings 2, and the working accuracy is high.

[0039] The specific embodiments of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and deformations made according to the technical concept of the utility model shall be included in the protection scope of the claims of the utility model.

Claims

1. A multi-bearing welding device, characterized in that, Comprising: A fixing component, including a rotating cylinder and a fixed cylinder, the rotating cylinder being located inside the fixed cylinder; A plurality of bearings, located between the fixed cylinder and the rotating cylinder, the outer rings of the plurality of bearings being connected to the inner wall of the fixed cylinder, and the inner rings of the plurality of bearings being connected to the outer wall of the rotating cylinder, so that the rotating cylinder is rotatably connected to the fixed cylinder through the plurality of bearings; and A laser component, including a laser head, the laser head being connected to the rotating cylinder.

2. The multi-bearing welding device according to claim 1, characterized in that, The number of the bearings is two, and the two bearings are respectively arranged near both ends of the fixed cylinder.

3. The multi-bearing welding device according to claim 2, characterized in that, The fixed cylinder includes a cylinder body, a first mounting ring and a second mounting ring, the first mounting ring and the second mounting ring are respectively detachably connected to both ends of the cylinder body by screws, and the first mounting ring and the second mounting ring are respectively connected to the outer rings of the two bearings.

4. The multi-bearing welding device according to claim 3, characterized in that, The fixing component further includes a fixing plate, the fixing plate is located between the first mounting ring and the cylinder body, and the multi-bearing welding device further includes a driving component arranged on the fixing plate, the driving component being connected to the rotating cylinder and used for driving the rotating cylinder to rotate.

5. The multi-bearing welding device according to claim 4, characterized in that, The driving component includes a driving motor, a transmission chain and a passive gear, the passive gear is fixedly sleeved on the rotating cylinder, and the transmission chain is connected to the driving motor and the passive gear at the same time, so that the driving motor can drive the passive gear to rotate through the transmission chain.

6. The multi-bearing welding device according to claim 1, characterized in that, The laser component includes a fixed bracket and a driving motor, a lead screw, a slide rail and a slider arranged on the fixed bracket, the slider is slidably arranged on the slide rail, the laser head is connected to the slider, the lead screw is threadedly penetrated through the slider, the driving motor is connected to the lead screw and used for driving the lead screw to rotate, and the fixed bracket is connected to the rotating cylinder.

7. The multi-bearing welding device according to claim 6, wherein The laser component further includes a wire feeding member arranged on the fixed bracket, and the outlet of the wire feeding member is located on the laser irradiation path of the laser head.

8. The multi-bearing welding device according to claim 6, characterized in that, The laser component further includes a suction pipe and a suction pump arranged on the fixed bracket, the inlet of the suction pipe is arranged near the laser head, and the outlet of the suction pipe is connected to the suction pump.

9. The multi-bearing welding device according to claim 4, characterized in that, The multi-bearing welding device further includes a first slideway mechanism and a second slideway mechanism, and both sides of the fixing plate are respectively slidably connected to the first slideway mechanism and the second slideway mechanism.

10. The multi-bearing welding device according to claim 9, characterized in that, The multi-bearing welding device further includes a sliding motor and a movable block, the first slideway mechanism includes a track and a fixed rack, the fixed rack is arranged on the track and is arranged parallel to the track, the movable block is slidably arranged on the track and is connected to the fixing plate, the sliding motor is arranged on the fixing plate, and the sliding motor includes a driving gear and meshes with the fixed rack through the driving gear.

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