A laser welding device

Abstract

This invention provides a laser welding device, including a laser welding module. The laser welding module includes a laser head and a fixed-rotation module. The laser head is disposed on one side of the fixed-rotation module. The fixed-rotation module includes a first mounting frame, a second mounting frame, a first slide rail, a first drive unit, a fixing block, a support shaft, and a second drive unit. The first and second mounting frames are arranged along a first direction. The first mounting frame is disposed on the first slide rail and can reciprocate along the first slide rail under the drive of the first drive unit. The extension direction of the first slide rail is the same as the first direction. A fixing block is disposed on the first mounting frame, and a support shaft is disposed on the second mounting frame. The fixing block and the support shaft are coaxially opposite each other and can rotate under the drive of the second drive unit. The laser welding device of this invention can automatically fix the workpiece to be welded and can automatically change the welding position.

Description

Technical Field

[0001] This utility model relates to the field of mechanical welding technology, specifically to a laser welding device. Background Technology

[0002] Laser welding is a highly efficient and precise welding method that uses a high-energy-density laser beam as a heat source. It is widely used in the precision welding of micro and small parts. However, existing laser welding equipment can usually only perform fixed-point welding. In cases requiring circumferential welding, manual rotation is required, and the workpiece must be manually fixed by a worker, resulting in low welding efficiency and inconsistent quality. Therefore, it is necessary to invent a welding device that can automatically fix the workpiece to be welded and automatically change the welding position. Utility Model Content

[0003] The purpose of this invention is to provide a laser welding device that solves the problem that existing laser welding devices cannot automatically fix the workpiece to be welded and cannot automatically change the welding position.

[0004] To achieve the purpose of this utility model, this utility model provides a laser welding device, including a laser welding module. The laser welding module includes a laser head and a fixed rotation module. The laser head is disposed on one side of the fixed rotation module. The fixed rotation module includes a first mounting frame, a second mounting frame, a first slide rail, a first drive unit, a fixing block, a support shaft, and a second drive unit. The first mounting frame and the second mounting frame are arranged along a first direction. The first mounting frame is disposed on the first slide rail and can reciprocate along the first slide rail under the drive of the first drive unit. The extension direction of the first slide rail is the same as the first direction. A fixing block is disposed on the first mounting frame, and a support shaft is disposed on the second mounting frame. The fixing block and the support shaft are coaxially opposite each other and can rotate under the drive of the second drive unit.

[0005] As can be seen from the above scheme, the laser welding equipment of this utility model includes a fixed rotation module, which includes a first mounting frame and a second mounting frame. The workpiece to be welded is clamped between the two. The first mounting frame is movable to automatically fix workpieces of different sizes and shapes. The fixing block and the support shaft clamp the workpiece. At the same time, under the action of the second driving unit, the workpiece is driven to rotate to complete the automatic ring welding.

[0006] A further embodiment is that a connecting block is provided on the first mounting bracket, and one side of the first drive unit is fixedly connected to the connecting block; the fixed rotation module also includes a mounting plate, and the other side of the first drive unit is mounted on the mounting plate.

[0007] As can be seen from the above scheme, the first drive unit is a cylinder. The cylinder is fixed by the mounting plate and connected to the first mounting bracket by the connecting block, which ensures the stable operation of the cylinder. While the structure is simple, it realizes the stable reciprocating motion of the first mounting bracket on the first slide rail.

[0008] A further embodiment is that the fixed rotation module also includes a first slider, which is connected to the bottom surface of the first mounting bracket, and the first slider can reciprocate along the first slide rail.

[0009] As can be seen from the above scheme, the setting of the first slider enables the first mounting plate to move stably and smoothly on the first slide rail.

[0010] A further option is to install a bearing on the second mounting bracket, with the support shaft passing through the bearing and fixed to the second mounting bracket, and the bearing and support shaft being coaxially connected.

[0011] As can be seen from the above scheme, the bearing arrangement enables the second drive unit to smoothly drive the workpiece and support shaft to rotate, ensuring stable rotation.

[0012] A further embodiment is that the laser welding module also includes a horizontal drive assembly and a vertical drive assembly, with the laser head mounted on the vertical drive assembly and the vertical drive assembly positioned above the horizontal drive assembly.

[0013] As can be seen from the above scheme, the horizontal drive component and the vertical drive component enable the laser head to move, allowing the laser welding equipment of this utility model to perform not only ring welding but also straight welding and spiral welding, thus broadening the application of the laser welding equipment.

[0014] A further embodiment is that the horizontal drive assembly includes a second slide rail and a third drive unit, the second slide rail extending along a first direction, and the third drive unit driving the laser head to move along the second slide rail.

[0015] A further embodiment is that the longitudinal drive assembly includes a third slide rail and a fourth drive unit. The third slide rail extends along the second direction, and the fourth drive unit drives the laser head to move along the third slide rail toward or away from the fixed rotating module.

[0016] As can be seen from the above scheme, the above driving structure is simple and operates stably.

[0017] A further option is that the longitudinal drive assembly also includes a support plate, with the third slide rail and the fourth drive unit both mounted on the support plate, which is mounted on the horizontal drive assembly.

[0018] As can be seen from the above scheme, the setting of the support plate ensures that the horizontal and vertical movements of the laser head do not affect each other, and saves space.

[0019] A further embodiment is that the fixed rotation module also includes at least one support base, which is disposed between the first mounting bracket and the second mounting bracket; the support base is provided with a support groove.

[0020] As can be seen from the above scheme, the support base is used to support the workpiece to be welded, and is suitable for welding longer workpieces, further improving the stability of the fixation.

[0021] A further option is that the laser welding equipment also includes a frame and a control module, with the fixed rotation module, laser welding module, and control module all mounted on the frame; the control module is used to control the fixed rotation module and the laser welding module.

[0022] As can be seen from the above scheme, the control module is used to control the operation of the entire laser welding equipment, with a high degree of automation, and the frame supports and fixes the rotating module and the laser welding module. Attached Figure Description

[0023] Figure 1 This is a structural schematic diagram of the laser welding equipment of this utility model with the workpiece in the first view.

[0024] Figure 2 This is a structural schematic diagram of the laser welding equipment of this utility model from a second perspective.

[0025] Figure 3 This is a structural schematic diagram of the laser welding module of this utility model.

[0026] Figure 4 This is a structural schematic diagram of the fixed rotation module of this utility model from a first-person perspective.

[0027] Figure 5 This is a structural schematic diagram of the fixed rotation module of this utility model from a second perspective.

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments. Detailed Implementation

[0029] See Figures 1 to 5 The laser welding equipment provided in this embodiment includes a laser welding module 1, a fixed-rotation module 2, a control module 3, and a frame 4. The laser welding module 1, the fixed-rotation module 2, and the control module 3 are all mounted on the frame 4. The control module 3 is used to control the fixed-rotation module 1 and the laser welding module 2.

[0030] See Figures 1 to 3The laser welding module 1 includes a laser head 11, a horizontal drive assembly, and a vertical drive assembly. The laser head 11 is mounted on the vertical drive assembly, which is positioned above the horizontal drive assembly. Specifically, the horizontal drive assembly includes a second slide rail 121, a third drive unit 122, a second slider 123, a first lead screw 124, and a first connecting slider 125. The second slide rail 121 extends along a first direction. The third drive unit 122 is located on one side of the second slide rail 121 and is a motor. One end of the third drive unit 122 is connected to the first lead screw 124, which extends along the first direction and is located within the second slide rail 121. The first connecting slider 125 is sleeved on the first lead screw 124, and the second slider 123 is mounted on the second slide rail 121. The vertical drive assembly includes a support plate 134, which is connected to the second slider 123 and the first connecting slider 125. The third drive unit 122 drives the first lead screw 124 to rotate, thereby driving the first connecting slider 125 to move the support plate 134 and the second slider 123 along the second slide rail 121.

[0031] The longitudinal drive assembly also includes a third slide rail 131, a fourth drive unit 132, a third slider 133, a second lead screw 135, and a second connecting slider. The third slide rail 131 extends along a second direction, which in this embodiment is perpendicular to the first direction and is a longitudinal direction perpendicular to the horizontal plane. The third slide rail 131 is fixed to the support plate 134, and the fourth drive unit 132 is disposed on the side of the third slide rail 131 away from the support plate 134. In this embodiment, the fourth drive unit 132 is a rotary handle, which is connected to the second lead screw 135. The second lead screw 135 extends along the second direction and is disposed inside the third slide rail 131. The second lead screw 135 is sleeved with a second connecting slider, which is connected to the third slider 133. The third slider 133 is also connected to the third slide rail 131. The laser head 11 is connected to the third slider 133. When the rotary handle rotates, it drives the second connecting slider to move the third slider 133 and the laser head 11 along the third slide rail 131, thereby moving them closer to or further away from the fixed mounting module 2.

[0032] See Figure 1 , Figure 2 , Figure 4 and Figure 5 The fixed rotation module 2 is disposed on one side of the laser head 11. In this embodiment, the fixed rotation module 2 is disposed below the laser head 11. The fixed rotation module 2 includes a first mounting bracket 211, a second mounting bracket 23, and at least one support base 22.

[0033] The first mounting bracket 211 and the second mounting bracket 23 are arranged along a first direction. The first mounting bracket 211 is mounted on a first slide rail 214 and can reciprocate along the first slide rail 214 under the drive of the first drive unit 212. The extension direction of the first slide rail 214 is the same as the first direction. In this embodiment, the first drive unit 212 is a cylinder. A connecting block 216 is provided on the first mounting bracket 211. One side of the first drive unit 212 is fixedly connected to the connecting block 216. The fixed rotation module 2 also includes a mounting plate 218, which is fixed to the frame 4. The other side of the first drive unit 212 is mounted on the mounting plate 218. By fixing the cylinder with the mounting plate 218 and connecting it to the first mounting bracket 211 with the connecting block 216, the stable operation of the cylinder is ensured. The structure is simple, and the first mounting bracket 211 can achieve stable reciprocating motion on the first slide rail 214. In this embodiment, the fixed rotation module 2 further includes a first slider 215, which is connected to the lower surface of the first mounting bracket 211 and can reciprocate along the first slide rail 214. The first slider 215 enables the first mounting plate 211 to move stably and smoothly on the first slide rail 214. A fixing block 213 is also provided on the first mounting bracket 211, which is located on the side of the first mounting bracket 211 near the second mounting bracket 23.

[0034] The second mounting bracket 23 is equipped with a bearing 231 and a support shaft 232. The support shaft 232 passes through the bearing 231 and is fixed to the second mounting bracket 23. The bearing and the support shaft are coaxially connected. The fixing block 213 is coaxially opposite to the support shaft 232, and the fixing block 213 and the support shaft 232 can rotate under the drive of the second drive unit 217. In this embodiment, the second drive unit 217 is a motor. The bearing 231 enables the second drive unit 217 to smoothly drive the workpiece 5 and the support shaft 232 to rotate, ensuring stable rotation.

[0035] In this embodiment, both the fixing block 213 and the support shaft 232 are hollow cylinders, and the two ends of the workpiece 5 can be fixed by embedding them into the fixing block 213 and the support shaft 232.

[0036] The support base 22 is disposed between the first mounting bracket 211 and the second mounting bracket 23, and the support base 22 is provided with a support groove 221. The support base 22 is used to support the workpiece to be welded, and is suitable for welding longer workpieces, further improving the stability of the fixation.

[0037] The control module 3 includes a control button 31 and a display panel 32, which are used to set welding parameters and control the welding progress.

[0038] The frame 4 is equipped with wheels 41, which allows the laser welding equipment to be moved to any position.

[0039] The laser welding equipment of this embodiment includes a laser welding module 1 and a fixed-rotation module 2. The fixed-rotation module 2 includes a first mounting bracket 211 and a second mounting bracket 23, between which the workpiece 5 to be welded is clamped. The first mounting bracket 211 is movable to automatically fix workpieces of different sizes and shapes. The fixing block 213 and the support shaft 232 clamp the workpiece, and the workpiece 5 is driven to rotate under the action of the second drive unit 217. The horizontal drive component and the vertical drive component make the laser head 11 movable, enabling the laser welding equipment of this embodiment to perform various welding methods such as ring welding, straight welding, and spiral welding, thus broadening the application of the laser welding equipment. The control module 3 is used to control the operation of the entire laser welding equipment, achieving a high degree of automation.

[0040] The above embodiments are merely preferred examples of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles of this utility model patent application should be included within the scope of this utility model patent application.

Claims

1. A laser welding device, comprising a laser welding module, wherein the laser welding module includes a laser head, characterized in that: It also includes a fixed rotation module, with the laser head disposed on one side of the fixed rotation module. The fixed rotation module includes a first mounting bracket, a second mounting bracket, a first slide rail, a first drive unit, a fixing block, a support shaft, and a second drive unit. The first mounting bracket and the second mounting bracket are arranged along a first direction. The first mounting bracket is disposed on the first slide rail, and the first mounting bracket can reciprocate along the first slide rail under the drive of the first drive unit. The extension direction of the first slide rail is the same as the first direction. The first mounting bracket is provided with the fixing block, and the second mounting bracket is provided with the support shaft. The fixing block and the support shaft are coaxially opposite each other, and the fixing block and the support shaft can rotate under the drive of the second driving unit.

2. The laser welding equipment as described in claim 1, characterized in that: The first mounting bracket is provided with a connecting block, and one side of the first drive unit is fixedly connected to the connecting block; The fixed rotation module also includes a mounting plate, on which the other side of the first drive unit is mounted.

3. The laser welding equipment as described in claim 1, characterized in that: The fixed rotation module also includes a first slider, which is connected to the bottom surface of the first mounting bracket, and the first slider can reciprocate along the first slide rail.

4. The laser welding equipment as described in claim 1, characterized in that: The second mounting bracket is also provided with a bearing, and the support shaft passes through the bearing and is fixed on the second mounting bracket. The bearing and the support shaft are coaxially connected.

5. The laser welding equipment as described in claim 1, characterized in that: The laser welding module further includes a horizontal drive component and a vertical drive component, with the laser head disposed on the vertical drive component and the vertical drive component disposed above the horizontal drive component.

6. The laser welding equipment as described in claim 5, characterized in that: The horizontal drive assembly includes a second slide rail and a third drive unit. The second slide rail extends along a first direction, and the third drive unit drives the laser head to move along the second slide rail.

7. The laser welding equipment as described in claim 5, characterized in that: The longitudinal drive assembly includes a third slide rail and a fourth drive unit. The third slide rail extends along a second direction, and the fourth drive unit drives the laser head to move along the third slide rail toward or away from the fixed rotating module.

8. The laser welding equipment as described in claim 7, characterized in that: The longitudinal drive assembly further includes a support plate, on which the third slide rail and the fourth drive unit are both disposed, and the support plate is disposed on the horizontal drive assembly.

9. A laser welding device as described in any one of claims 1-8, characterized in that: The fixed rotation module further includes at least one support base, which is disposed between the first mounting frame and the second mounting frame; The support base is provided with a support groove.

10. A laser welding device as described in any one of claims 1-8, characterized in that: The laser welding equipment also includes a frame and a control module, wherein the fixed rotation module, the laser welding module, and the control module are all mounted on the frame; The control module is used to control the fixed rotation module and the laser welding module.

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