An optical system integrating laser paint stripping and welding

Abstract

The present invention relates to an optical system for integrated laser paint stripping and welding, comprising a mounting base, a reflective assembly, and two lasers for stripping paint and welding welded parts, respectively. The mounting base is hollow, with a lower through-hole provided at its lower end. One side of the mounting base is provided with a first input port in the vertical direction, and the other side is provided with a second input port in the horizontal direction. The two lasers are fixedly mounted at the first input port and the second input port, respectively, for emitting laser beams. The reflective assembly is fixedly mounted within the mounting base and is used to reflect the laser beams emitted by the two lasers, so that either laser beam is emitted from the lower through-hole. The present invention has the beneficial effects of a compact structure, integrating laser paint stripping and welding, enabling paint stripping and welding of inductor coils, and ensuring the quality of the paint stripping and welding of the inductor coils.

Description

Technical Field

[0001] The invention relates to the technical field of laser welding, and in particular to an optical system integrating laser paint stripping and welding. Background Art

[0002] Paint stripping equipment is often used in the production processes of inductor coils and other related processes. The traditional method is to use tin immersion to melt the paint at high temperature to achieve the purpose of paint stripping. However, this method can easily damage the coil, has a low yield rate, and cannot guarantee the quality of paint stripping. Others use highly corrosive chemicals to corrode the paint to achieve the purpose of paint stripping. This method also causes certain damage to the inductor coil and has a low yield rate. There is also a physical paint stripping method that uses mechanical props to cut and strip the paint, but this method can only strip the paint of coils with a wire diameter greater than 0.15mm. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an optical system integrating laser paint stripping and welding, aiming to solve the above technical problems.

[0004] The technical solution of the present invention to solve the above technical problems is as follows:

[0005] An optical system for integrated laser paint stripping and welding comprises a mounting base, a reflective assembly, and two lasers for respectively stripping paint and welding welded parts. The mounting base is hollow inside and has a lower through hole at its lower end. One side of the mounting base is provided with a first input port in the vertical direction, and the other side is provided with a second input port in the horizontal direction. The two lasers are fixedly mounted at the first input port and the second input port, respectively, and are respectively used to emit laser beams. The reflective assembly is fixedly mounted in the mounting base and is used to reflect the laser beams emitted by the two lasers so that any one laser beam is emitted from the lower through hole.

[0006] The present invention has the following beneficial effects: during use, a laser beam emitted by any laser enters the mounting base through the corresponding input port, is then reflected by the reflective assembly and exits through the lower through-hole to perform paint stripping or welding operations on welded parts. The present invention has a compact structure, integrates laser paint stripping and welding, and can achieve paint stripping and welding of inductor coils, ensuring the quality of the paint stripping and welding operations.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, the reflection assembly includes a total reflection lens, a reflection lens and a light combining mirror. The total reflection lens is fixedly installed at an angle in the mounting seat at a position corresponding to the position below the input port 1, and is used to reflect the laser beam input from the input port 1; the reflection lens is fixedly installed at an angle in the mounting seat near the upper end of the mounting seat, and is used to reflect the laser beam input from the input port 2; the light combining mirror is fixedly installed at an angle in the mounting seat near the lower end of the mounting seat, and is parallel to the total reflection lens, and is used to respectively receive the laser beams reflected by the total reflection lens and the reflection lens, and emit any one of the received laser beams from the lower through hole.

[0009] The beneficial effect of adopting the above-mentioned further scheme is that when in use, the laser beam input from input port one is reflected from the lower through hole through the total reflection lens and the light combining mirror to perform welding processing on the welded part; or the laser beam input from input port two is reflected from the lower through hole through the reflection lens and the light combining mirror to perform paint stripping processing on the welded part, which can realize paint stripping and welding of the welded part, with a simple structure and diverse functions.

[0010] Furthermore, the mounting seat is an L-shaped seat, the lower end of its vertical part is fixedly connected to one end of the horizontal part, and the lower through hole is located at the lower end of the vertical part; the input port 1 is located on the upper side of the other end of the horizontal part, and the input port 2 is located on one side of the upper end of the vertical part.

[0011] The beneficial effects of adopting the above further solution are simple structure, reasonable design, convenient installation of various components without mutual interference, and easy use.

[0012] Furthermore, the lower side of the other end of the horizontal portion is sloped and open, and the total reflection lens is fixedly installed at the open portion of the horizontal portion.

[0013] The beneficial effects of adopting the above further solution are simple structure, reasonable design, and convenient installation of various components.

[0014] Furthermore, a beam shaping lens assembly for shaping the laser beam emitted by the corresponding laser into a set light spot is fixedly installed at one of the input ports, and the beam shaping lens assembly is located below the corresponding laser.

[0015] The beneficial effect of adopting the above further solution is that after the laser beam is shaped by the beam shaping lens assembly, a light spot of a desired shape can be obtained to complete the paint stripping and welding work of the welded parts.

[0016] It should be noted that during use, the user can replace the beam shaping lens assembly according to the type of welded parts to obtain light spots of different shapes to complete the paint stripping and welding work of different welded parts.

[0017] Furthermore, an upper through hole is provided at the lower end of the mounting seat, and an achromatic lens assembly is fixedly mounted at the upper through hole.

[0018] The beneficial effect of adopting the above further solution is that the light of different wavelengths is converged to the same point through the achromatic lens group through the achromatic lens assembly, so that the entire optical system will not produce the target point offset due to chromatic aberration when working.

[0019] Furthermore, a camera for detecting whether the position of the welding part is correct is fixedly installed at the upper through hole.

[0020] The beneficial effect of adopting the above further solution is to detect whether the position of the welded part corresponds to the through hole at the lower end of the mounting seat by a camera, so as to ensure the quality of welding and paint stripping of the welded part.

[0021] Furthermore, the camera is a CCD camera.

[0022] The beneficial effect of adopting the above further solution is that the accuracy is greatly improved and the detection effect is better.

[0023] Furthermore, a camera imaging combination lens for filtering stray light generated by laser processing is fixedly installed at the upper through hole, and the camera imaging combination lens is located below the camera.

[0024] The beneficial effect of adopting the above further solution is that in the optical system, not only high-definition imaging is achieved through the camera imaging combination lens, but also the stray light generated by laser processing is filtered out to prevent camera blinding and ensure the effect of camera detection.

[0025] Furthermore, input connectors for connecting the two lasers are fixedly installed at the input port 1 and the input port 2 respectively.

[0026] The beneficial effects of adopting the above further solution are simple structure, convenient assembly and disassembly of the laser, and time and labor saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the present invention.

[0028] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0029] 1. Mounting base, 2. Laser, 3. Beam shaping lens assembly, 4. Total reflection lens, 5. Reflection lens, 6. Light combiner, 7. Achromatic lens assembly, 8. CCD camera, 9. Camera imaging combination lens, 10. Input connector. DETAILED DESCRIPTION

[0030] The principles and features of the present invention are described below with reference to the accompanying drawings and specific embodiments. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0031] like Figure 1 As shown, the present invention provides an optical system for integrated laser paint stripping and welding, comprising a mounting base 1, a reflective assembly, and two lasers 2 for stripping paint and welding welded parts, respectively. The mounting base 1 is hollow, and its lower end is provided with a lower through hole; one side of the mounting base 1 is provided with an input port 1 in the vertical direction, and the other side is provided with an input port 2 in the horizontal direction; the two lasers 2 are fixedly mounted at input port 1 and input port 2, respectively, for emitting laser beams; the reflective assembly is fixedly mounted in the mounting base 1, for reflecting the laser beams emitted by the two lasers 2, so that any laser beam is emitted from the lower through hole. During use, any laser 2 emits a laser beam, which enters the mounting base 1 from the corresponding input port, and is then reflected from the lower through hole by the reflective assembly to perform paint stripping or welding operations on welded parts. The present invention has a compact structure, integrates laser paint stripping and welding, can realize paint stripping and welding of inductor coils, and ensures the quality of paint stripping and welding of inductor coils.

[0032] It should be noted that the two lasers 2 are an infrared semiconductor laser and an ultraviolet fiber laser, respectively. The infrared semiconductor laser and the ultraviolet fiber laser are fixedly installed at input port 1 and input port 2, respectively, to emit laser beams for welding and paint stripping of the welded parts.

[0033] In addition, the installation of the two lasers 2 in the figure is just a simple illustration, and the two lasers 2 can also be connected to the input port 1 and the input port 2 through optical fibers.

[0034] Example 1

[0035] On the basis of the above structure, in this embodiment, the reflection assembly includes a total reflection lens 4, a reflection lens 5 and a light combining mirror 6. The total reflection lens 4 is tilted and installed in a position below the corresponding input port 1 in the mounting base 1 by a method that can be thought of by a person skilled in the art, such as gluing or bolting, and is used to reflect the laser beam input from the input port 1; the reflection lens 5 is tilted and installed in a position close to the upper end of the mounting base 1 in the mounting base 1 by a method that can be thought of by a person skilled in the art, such as gluing or bolting, and is used to reflect the laser beam input from the input port 2; the light combining mirror 6 is tilted and installed in a position close to the lower end of the mounting base 1 in the mounting base 1 by a method that can be thought of by a person skilled in the art, such as gluing or bolting, and is parallel to the total reflection lens 4, and is used to receive the laser beams reflected by the total reflection lens 4 and the reflection lens 5 respectively, and emit any one of the laser beams from the lower through hole. When in use, the laser beam input from input port 1 is reflected from the lower through hole through the total reflection lens 4 and the light combining mirror 6 to perform welding processing on the welded parts; or the laser beam input from input port 2 is reflected from the lower through hole through the reflection lens 5 and the light combining mirror 6 to perform paint stripping processing on the welded parts. It can realize paint stripping and welding of welded parts with simple structure and diverse functions.

[0036] Example 2

[0037] Building on the first embodiment, this embodiment features an L-shaped mounting base 1, with the lower end of its vertical portion fixedly connected and communicating with one end of the horizontal portion. A lower through-hole is located at the lower end of the vertical portion; the vertical and horizontal portions are integrally formed. Input port 1 is located above the other end of the horizontal portion, while input port 2 is located to one side of the upper end of the vertical portion. This solution offers a simple structure and rational design, allowing for easy installation of the various components without interfering with each other, and is therefore user-friendly.

[0038] Example 3

[0039] On the basis of the second embodiment, in this embodiment, the lower side of the other end of the horizontal portion is sloped and open, and the total reflection lens 4 is fixedly installed at the open portion of the horizontal portion, which has a simple structure, reasonable design, and is convenient for installing various components.

[0040] The reflective lens 5 and the light combining lens 6 are respectively located in the upper end and the lower end of the vertical portion.

[0041] Example 4

[0042] Based on the above structure, in this embodiment, a beam shaping lens assembly 3 is bolted to one of the input ports. This assembly is used to shape the laser beam emitted by the corresponding laser 2 into a predetermined spot. This assembly is located below the corresponding laser 2. During use, the laser beam is shaped by the beam shaping lens assembly 3 to obtain a desired spot shape, enabling paint stripping and welding operations.

[0043] It should be noted that, during use, the user can replace the beam shaping lens assembly 3 according to the type of welded parts, so as to obtain light spots of different shapes to complete the paint stripping and welding work of different welded parts.

[0044] Example 5

[0045] Building on the above structure, in this embodiment, the lower end of mounting base 1 is provided with an upper through-hole, to which an achromatic lens assembly 7 is fixedly mounted via bolts. During operation, a laser beam is first reflected from the through-hole at the lower end of mounting base 1. Achromatic lens assembly 7 then converges light of different wavelengths to a single point through the achromatic lens group. This prevents the entire optical system from shifting the target point due to chromatic aberration during operation.

[0046] Example 6

[0047] Based on the above structure, in this embodiment, a camera for detecting whether the position of the welded part is correct is fixedly mounted by bolts at the upper through hole. When in use, the camera detects whether the position of the welded part corresponds to the through hole at the lower end of the mounting base 1, thereby ensuring the quality of welding and paint stripping of the welded part.

[0048] Preferably, in this embodiment, the camera is a CCD camera 8, which greatly improves the accuracy and has a better detection effect.

[0049] Example 7

[0050] In this embodiment, based on the sixth embodiment, a camera imaging lens assembly 9 is bolted into the through-hole at the upper end of the mounting base 1. This lens assembly 9 is located below the camera. During use, the optical system not only achieves high-definition imaging through the lens assembly 9, but also filters out stray light generated by the laser processing, preventing camera blindness and ensuring effective camera detection.

[0051] Example 8

[0052] On the basis of the above structure, in this embodiment, input connectors 10 for connecting two lasers 2 are fixedly installed at input port 1 and input port 2 respectively by welding or bolt connection. The two lasers 2 are fixed to the two input connectors 10 respectively by bolts. The structure is simple, and the lasers 2 are easy to disassemble and assemble, saving time and effort.

[0053] When in use, the entire device is installed on the machine tool through horizontal movement of the mechanical structure, so as to perform paint stripping and welding processing on different inductor coils on the machine tool; the above mechanical structure adopts existing technology, and its structure will not be described in detail here.

[0054] Moreover, when the camera detects that the position of the inductor coil does not correspond to the through hole at the lower end of the mounting base 1, the position of the entire device needs to be adjusted.

[0055] In addition, the entire device can be powered by batteries, but the batteries need to be replaced regularly. An external power supply can also be used, but it is inconvenient to use.

[0056] The working principle of the present invention is as follows:

[0057] During welding, the infrared semiconductor laser emits an infrared laser beam which is input from the input port 1, and the infrared laser beam is reflected from the through hole at the lower end of the mounting base 1 by the total reflection lens 4 and the light combining mirror 6 to perform welding on the welded parts;

[0058] When stripping paint, the ultraviolet fiber laser emits an ultraviolet laser beam from the input port 2, and the ultraviolet laser beam is reflected from the through hole at the lower end of the mounting base 1 through the reflective lens 5 and the light combining mirror 6 to strip paint on the welded parts.

[0059] It should be noted that all electronic components involved in the present invention adopt existing technologies, and the above components are electrically connected to the controller (model TC-SCR), and the control circuits between the controller and the components are existing technologies.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An optical system integrating laser paint stripping and welding, characterized by: The invention comprises a mounting seat (1), a reflective component and two lasers (2) for stripping paint and welding welded parts respectively. The mounting seat (1) is hollow inside and has a lower through hole at its lower end. One side of the mounting seat (1) is provided with an input port 1 in the vertical direction, and the other side is provided with an input port 2 in the horizontal direction. The two lasers (2) are respectively an infrared semiconductor laser and an ultraviolet fiber laser, and are fixedly mounted at the input port 1 and the input port 2, respectively, and are used to emit laser beams respectively. The reflective component is fixedly mounted in the mounting seat (1) and is used to reflect the laser beams emitted by the two lasers (2), so that any one laser beam is emitted from the lower through hole. An upper through hole is provided at the lower end of the mounting seat (1), and an achromatic lens assembly (7) is fixedly mounted at the upper through hole; a camera for detecting whether the position of the welded part is correct is fixedly mounted at the upper through hole, and a camera imaging combination lens (9) for filtering stray light generated by laser processing is also fixedly mounted at the upper through hole, and the camera imaging combination lens (9) is located below the camera.

2. The optical system for integrated laser paint stripping and welding according to claim 1, characterized in that: The reflection assembly comprises a total reflection lens (4), a reflection lens (5) and a light combining mirror (6); the total reflection lens (4) is fixedly installed at an angle in the mounting seat (1) at a position below the input port 1, and is used to reflect the laser beam input from the input port 1; the reflection lens (5) is fixedly installed at an angle in the mounting seat (1) at a position close to the upper end of the mounting seat (1), and is used to reflect the laser beam input from the input port 2; the light combining mirror (6) is fixedly installed at an angle in the mounting seat (1) at a position close to the lower end of the mounting seat (1), and is parallel to the total reflection lens (4), and is used to respectively receive the laser beams reflected by the total reflection lens (4) and the reflection lens (5), and emit any one of the received laser beams from the lower through hole.

3. The optical system for integrated laser paint stripping and welding according to claim 2, characterized in that: The mounting seat (1) is an L-shaped seat, the lower end of the vertical portion of which is fixedly connected and communicated with one end of the horizontal portion, and the lower through hole is located at the lower end of the vertical portion; the first input port is located on the upper side of the other end of the horizontal portion, and the second input port is located on one side of the upper end of the vertical portion.

4. The optical system for integrated laser paint stripping and welding according to claim 3, characterized in that: The lower side of the other end of the horizontal portion is sloped and open, and the total reflection lens (4) is fixedly mounted on the open portion of the horizontal portion.

5. The optical system for integrated laser paint stripping and welding according to any one of claims 1 to 4, characterized in that: A beam shaping lens assembly (3) for shaping the laser beam emitted by the corresponding laser (2) into a set light spot is fixedly installed at one of the input ports. The beam shaping lens assembly (3) is located below the corresponding laser (2).

6. The optical system for integrated laser paint stripping and welding according to claim 1, characterized in that: The camera is a CCD camera (8).

7. The optical system for integrated laser paint stripping and welding according to any one of claims 1 to 4, characterized in that: Input connectors (10) for connecting the two lasers (2) are fixedly installed at the first input port and the second input port respectively.

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