Rotary laser welding equipment

Abstract

The invention discloses a rotary laser welding device which comprises a mounting seat in transmission connection with the output end of a rotary motor, and further comprises a wire feeding assembly mounted on the mounting seat, a wire feeding assembly mounted on the mounting seat and a wire feeding assembly mounted on the wire feeding assembly, the wire feeding assembly comprises a pressing head and a pipe clamp structure used for clamping a stand column, and the pressing head is arranged above the stand column and used for pressing the stand column to a cover plate; the welding assembly is arranged close to the wire feeding assembly and comprises a laser welding head installed on an installation base, the laser welding head faces the welding position of the stand column and the cover plate, and a certain angle is formed between the laser welding head and the stand column; and the positioning tool is located below the wire feeding assembly and comprises a material placing plate used for placing the cover plate and a clamping part used for clamping the cover plate. The problems that an existing OBC shell cover plate adopts a front face step angle welding technology, manual preassembling and predispensing are needed, the machining takt is long, and the machining efficiency is not high are solved.

Description

Technical Field

[0001] This invention belongs to the field of laser welding equipment technology, and specifically relates to a rotary 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. The welding head collimates and focuses the laser beam to form a strong laser energy point, which acts on the workpiece surface according to the set welding pattern and laser power. The workpiece absorbs the heat energy of the high-energy-density laser beam, and the temperature of the workpiece material rapidly rises, causing melting. After cooling, a weld joint or weld spot is formed, achieving the welding requirements.

[0003] Laser welding equipment is used for laser welding of OBC shell cover plates. OBC shell cover plates include a base plate and long, medium and short columns. The long, medium and short columns need to be welded vertically to the base plate. Existing technology generally uses front step angle welding technology for OBC shell cover plates. Its drawback is that it requires manual pre-assembly and pre-spotting, and the processing cycle is long (300s), which leads to low processing efficiency. Summary of the Invention

[0004] To address the problems of existing technologies that require manual pre-assembly and pre-marking of welding base plates and long, medium, and short columns, resulting in long processing cycles and low processing efficiency, this invention discloses a rotary laser welding device, including a mounting base. The mounting base is connected to the output end of a rotary motor. The laser welding head of the rotary laser welding device of this invention has an angle with the pipe clamp structure and the horizontal plane. Driven by the rotary motor, it rotates to realize the welding function of the column base and the base plate. By repeating the process multiple times, all rotary motors are welded to the cover plate to complete the finished plate.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A rotary laser welding device includes a mounting base, the mounting base being drivenly connected to the output end of a rotary motor, and further includes: The wire feeding assembly installed on the mounting base includes a pressure head and a clamping structure for holding the column. The pressure head is disposed above the column and is used to press the column against the cover plate. A welding assembly is disposed near the wire feeding assembly, the welding assembly including a laser welding head mounted on a mounting base, the laser welding head facing the welding point between the column and the cover plate, the laser welding head and the column being clamped at a certain angle; and The positioning fixture located below the wire feeding assembly includes a material placement plate for placing the cover plate and a clamping component for holding the cover plate.

[0006] Furthermore, the pipe clamp structure includes a pipe clamp cylinder and a clamping head, the output end of which is connected to the clamping head, which is used to clamp the column.

[0007] Furthermore, the mounting base includes a wire feeding mounting plate and a welding mounting plate. The welding assembly is mounted on the welding mounting plate, and a connecting plate is fixed to one side of the welding mounting plate. The connecting plate is fixedly connected to the wire feeding mounting plate, and the pipe clamp cylinder is mounted on the wire feeding mounting plate.

[0008] Furthermore, the pressure head includes a clamping cylinder and a pressure column fixed at the output end of the clamping cylinder. After the clamping cylinder is working, it can press the column against the cover plate through the pressure column.

[0009] Furthermore, the clamping component includes a rotating pressing component and a side-clamping component. The pressing component is used to press the cover plate against the material placement plate, and the side-clamping component is disposed on the side of the cover plate to restrict the cover plate from moving in the horizontal plane.

[0010] Furthermore, there are four clamping components, which are arranged in pairs at the ends of the cover plate. Each clamping component includes a rotary cylinder and an "L"-shaped clamping plate installed at the output end of the rotary cylinder. After the rotary cylinder is working, it can clamp the "L"-shaped clamping plate onto the upper surface of the cover plate.

[0011] Furthermore, the "L"-shaped clamping plate includes a horizontal plate fixed to the output end of the rotary cylinder and a clamping wheel rotatably connected to the horizontal plate, wherein the clamping wheel is located at the end of the horizontal plate away from the output end of the rotary cylinder.

[0012] Furthermore, there are two side-clamping components, which are respectively disposed at one end and one side of the cover plate. Each side-clamping component includes a side cylinder and a clamping block fixed at the output end of the side cylinder. The clamping block can abut against the side of the cover plate.

[0013] Furthermore, it also includes a vision component, which is mounted on the mounting base and detects the welding status of the cover plate and the column after welding is completed.

[0014] Compared with existing technologies, the beneficial effects of this solution are: This invention provides a rotary laser welding device, including a mounting base connected to the output end of a rotary motor, and further comprising: a wire feeding assembly mounted on the mounting base, including a pressure head and a clamping structure for holding a column, the pressure head being disposed above the column and used to press the column against a cover plate; a welding assembly disposed near the wire feeding assembly, the welding assembly including a laser welding head mounted on the mounting base, the laser welding head facing the welding point between the column and the cover plate, the laser welding head and the column being clamped at a certain angle; and a positioning fixture located below the wire feeding assembly, the positioning fixture including a material placement plate for placing the cover plate and a clamping component for holding the cover plate.

[0015] The laser welding head of the rotating mechanism laser welding equipment of this invention has an angle with the pipe clamp structure and the horizontal plane. Driven by a rotating motor, it rotates to achieve the welding function of the column base and the bottom plate. By repeating the process multiple times, all rotating motors are welded to the cover plate to complete the finished plate. After welding, a vision component is used to check for any omissions, and finally, the plate is automatically discharged for manual unloading. This invention solves the problems of existing OBC shell cover plates using front step angle welding technology, which requires manual pre-assembly and pre-spotting, resulting in a long processing cycle and low processing efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the rotary laser welding equipment; Figure 2 This is another structural schematic diagram of the rotary laser welding equipment; Figure 3 for Figure 2 Enlarged view of point A; Figure 4 This is the front view of the rotary laser welding equipment; Figure 5 This is a top view of the rotary laser welding equipment.

[0017] Mounting base 1, wire feeding mounting plate 11, welding base plate 12, connecting plate 13, wire feeding assembly 2, pressure head 21, clamping cylinder 211, pressure column 212, pipe clamping structure 22, pipe clamping cylinder 221, clamping head 222, welding assembly 3, laser welding head 31, positioning fixture 4, material placement plate 41, rotating cylinder 42, pressing plate 421, side cylinder 43, abutting block 431, cover plate 5, column 51. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings.

[0019] A rotating laser welding device, such as Figure 1 and Figure 2 As shown, it includes a mounting base 1, which is connected to the output end of a rotary motor (not visible in the diagram), and also includes: The wire feeding assembly 2 installed on the mounting base 1 includes a pressure head 21 and a tube clamp structure 22 for clamping the column 51. The pressure head 21 is disposed above the column 51 and is used to press the column 51 against the cover plate 5. A welding assembly 3 is disposed near the wire feeding assembly 2. The welding assembly 3 includes a laser welding head 31 mounted on the mounting base 1. The laser welding head 31 faces the welding point between the column 51 and the cover plate 5, and the laser welding head 31 and the column 51 are positioned at a certain angle. The positioning fixture 4 is located below the wire feeding assembly 2. The positioning fixture 4 includes a material placement plate 41 for placing the cover plate 5 and a clamping component for clamping the cover plate 5.

[0020] According to a specific embodiment of the present invention, the laser welding head 31 of the rotating mechanism laser welding equipment and the column 51 clamped by the pipe clamp structure 22 are clamped at a certain angle. The rotating motor is a servo motor. The pipe clamp structure 22 is used to clamp and fix the column 51, moving the column 51 from the material platform to the positioning fixture 4 for fixation. Then, the pressure head 21 presses the column 51 onto the cover plate 5 to prevent the column 51 from moving. At this time, the pipe clamp structure 22 releases the column 51, and the mounting base 1 rotates under the action of the rotating motor, driving the welding assembly 3 to rotate. The laser welding head 31 works to weld the column 51 and the cover plate 5 into one piece. The present invention solves the problems of existing OBC shell cover plates using front step angle welding technology, which requires manual pre-assembly and pre-spotting, resulting in a long processing cycle and low processing efficiency.

[0021] The process for using the rotating mechanism laser welding equipment of the present invention is as follows: The laser welding head 31 is at an angle to the pipe clamp structure 22 and the horizontal plane. Driven by the rotary motor, it rotates to realize the welding function of the root of the column 51 and the base plate. Repeatedly welding all the rotary motors to the cover plate 5 completes the finished plate. After welding, the visual component is used to check for omissions. Finally, the plate is automatically discharged and manually unloaded.

[0022] Furthermore, such as Figures 3-5 As shown, the pipe clamp structure 22 includes a pipe clamp cylinder 221 and a clamping head 222. The output end of the pipe clamp cylinder 221 is connected to the clamping head 222, which is used to clamp the column 51.

[0023] According to a specific embodiment of the present invention, there are two pipe clamping cylinders 221, which are installed on the pipe clamping plate. The pipe clamping plate is fixed to the clamping cylinder 211. The pipe clamping cylinders 221 and the clamping head 222 are installed in a vertical direction. The clamping head 222 includes two parallel elongated plate-shaped structures and a clamping head 222 cylinder. An elongated plate-shaped structure is installed at the output end of the clamping head 222 cylinder. A strip-shaped groove is provided on the opposite side of the elongated plate-shaped structure near the column 51. The strip-shaped groove is used to accommodate the column 51. After the clamping head 222 cylinder is working, the elongated plate-shaped structure can move horizontally, thereby clamping and fixing the column 51 in the strip-shaped groove.

[0024] Further, the mounting base 1 includes a wire feeding mounting plate 11 and a welding base plate 12. The welding assembly 3 is mounted on the welding base plate 12. A connecting plate 13 is fixed to one side of the welding base plate 12. The connecting plate 13 is fixedly connected to the wire feeding mounting plate 11. The pipe clamp cylinder 221 is mounted on the wire feeding mounting plate 11. Specifically, the mounting base 1 includes a vertically arranged wire feeding mounting plate 11 and a welding base plate 12. One edge of the welding base plate 12 is fixed to the connecting plate 13, and the connecting plate 13 is perpendicular to the welding base plate 12. The wire feeding mounting plate 11 is fixed to the side of the connecting plate 13 facing away from the welding base plate 12.

[0025] Furthermore, the pressure head 21 includes a clamping cylinder 211 and a pressure column 212 fixed at the output end of the clamping cylinder 211. After the clamping cylinder 211 is working, it can press the column 51 against the cover plate 5 through the pressure column 212.

[0026] Furthermore, the clamping component includes a rotating pressing component and a side pressing component. The pressing component is used to press the cover plate 5 onto the material placement plate 41, and the side pressing component is disposed on the side of the cover plate 5. The side pressing component is used to restrict the cover plate 5 from moving in the horizontal plane.

[0027] Furthermore, there are four clamping components, which are arranged in pairs at the ends of the cover plate 5. Each clamping component includes a rotary cylinder 42 and an "L"-shaped clamping plate 421 installed at the output end of the rotary cylinder 42. After the rotary cylinder 42 is working, it can press the "L"-shaped clamping plate 421 onto the upper surface of the cover plate 5.

[0028] Furthermore, the "L"-shaped clamping plate 421 includes a horizontal plate fixed to the output end of the rotary cylinder 42 and a clamping wheel rotatably connected to the horizontal plate, wherein the clamping wheel is located at the end of the horizontal plate away from the output end of the rotary cylinder 42.

[0029] Furthermore, there are two side-clamping components, and the side-clamping components are respectively disposed at one end and one side of the cover plate 5. The side-clamping component includes a side cylinder 43 and a clamping block 431 fixed at the output end of the side cylinder 43. The clamping block 431 can abut against the side of the cover plate 5.

[0030] According to a specific embodiment of the present invention, the clamping component includes a rotating pressing component and a side pressing component. The pressing component is used to press the cover plate 5 onto the material placement plate 41, and the side pressing component is disposed on the side of the cover plate 5.

[0031] Furthermore, it also includes a vision component (not visible in the figure), which is mounted on the mounting base 1. The vision component can be an existing industrial camera, and it detects the welding status of the cover plate 5 and the column 51 after welding is completed. Specifically, the overall welding process is as follows: 1. The long, medium and short columns are manually placed on three vibratory feeders, which then transport them to the central X-axis and then to the material pick-up point (the length of the columns is checked before the material pick-up point). 2. The base plate is manually placed onto the tooling fixture, and then automatically transported to the welding position by the Y-axis; 3. The welding platform moves to the column material handling position, picks up the material through the pipe clamp structure, and moves the column above the cover plate; 4. The welding laser head can rotate around the base of the column to weld the column and the base plate together; 5. Each cover plate is welded with 11 columns repeatedly, with columns 1, 2, 7, 8, 9, 10, and 11 forming a full circle, and columns 3, 4, 5, and 6 forming 80% of the circumference. 6. After welding is completed, the material is automatically discharged, and then manually unloaded.

[0032] Finally, it should be noted that in the description of this invention, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0033] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0034] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A rotary laser welding device, comprising a mounting base, wherein the mounting base is connected to the output end of a rotary motor, characterized in that, Also includes: The wire feeding assembly installed on the mounting base includes a pressure head and a clamping structure for holding the column. The pressure head is disposed above the column and is used to press the column against the cover plate. A welding assembly is disposed near the wire feeding assembly, the welding assembly including a laser welding head mounted on a mounting base, the laser welding head facing the welding point between the column and the cover plate, the laser welding head and the column being clamped at a certain angle; and The positioning fixture located below the wire feeding assembly includes a material placement plate for placing the cover plate and a clamping component for holding the cover plate.

2. The rotary laser welding equipment according to claim 1, characterized in that: The pipe clamp structure includes a pipe clamp cylinder and a clamping head. The output end of the pipe clamp cylinder is connected to the clamping head, which is used to clamp the column.

3. The rotary laser welding equipment according to claim 2, characterized in that: The mounting base includes a wire feeding mounting plate and a welding mounting plate. The welding assembly is mounted on the welding mounting plate. A connecting plate is fixed to one side of the welding mounting plate. The connecting plate is fixedly connected to the wire feeding mounting plate. The pipe clamp cylinder is mounted on the wire feeding mounting plate.

4. The rotary laser welding equipment according to claim 3, characterized in that: The pressure head includes a clamping cylinder and a pressure column fixed at the output end of the clamping cylinder. After the clamping cylinder is working, it can press the column against the cover plate through the pressure column.

5. The rotary laser welding equipment according to claim 4, characterized in that: The clamping component includes a rotating pressing component and a side pressing component. The pressing component is used to press the cover plate against the material placement plate, and the side pressing component is disposed on the side of the cover plate to restrict the cover plate from moving in the horizontal plane.

6. The rotary laser welding equipment according to claim 5, characterized in that: There are four clamping components, which are arranged in pairs at the ends of the cover plate. Each clamping component includes a rotary cylinder and an "L"-shaped clamping plate installed at the output end of the rotary cylinder. After the rotary cylinder is working, it can press the "L"-shaped clamping plate onto the upper surface of the cover plate.

7. A rotary laser welding device according to claim 6, characterized in that: The "L"-shaped clamping plate includes a horizontal plate fixed to the output end of the rotary cylinder and a clamping wheel rotatably connected to the horizontal plate. The clamping wheel is located at the end of the horizontal plate away from the output end of the rotary cylinder.

8. The rotary laser welding equipment according to claim 7, characterized in that: There are two side-clamping components, which are respectively located at one end and one side of the cover plate. Each side-clamping component includes a side cylinder and a clamping block fixed at the output end of the side cylinder. The clamping block can abut against the side of the cover plate.

9. A rotary laser welding device according to any one of claims 1-8, further comprising a vision component, the vision component being mounted on the mounting base, the vision component detecting the welding status of the cover plate and the column after welding is completed.

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