A double-head laser paint stripping machine

Abstract

The present invention relates to a double-head laser paint stripping machine, which mainly includes a frame, a working platform, a positioning fixture, an upper laser paint stripping device, a lower laser paint stripping device, an XY axis moving device and an electric control device. The overall structure of the present invention is simple and reliable. The synchronous paint stripping process is realized by synchronously moving the upper laser paint stripping device and the lower laser paint stripping device, and the workpiece to be processed is fixed on the working platform, so that the accuracy of the paint stripping process is improved from both the processing end and the processed end. The upper laser paint stripping device and the lower laser paint stripping device can be processed simultaneously by setting the processing window, which provides a basis for synchronous processing.

Description

Technical Field

[0001] The invention relates to the technical field of laser processing, in particular to a double-head laser paint stripping machine for synchronously stripping paint on both sides of a paint-coated conductor. Background Art

[0002] At present, laser paint stripping has been widely used in the paint stripping processing of painted conductors in the electronics industry. The commonly used paint stripping processing equipment generally uses a single laser head device in conjunction with a flip or rotation device to achieve multi-faceted paint stripping processing. Although a single laser head device can save costs, the positioning accuracy of the flip or rotation device on the painted conductor is unstable, which can easily lead to deviations in processing and increase the defective rate. For example, it is necessary to perform precise symmetrical paint stripping processing on the upper and lower surfaces of the painted conductor. The existing equipment cannot accurately complete the processing, resulting in asymmetry between the paint stripping positions on the upper surface and the paint stripping positions on the lower surface, causing defects. In addition, the applicability of the equipment is poor and it cannot be applied to the processing of painted conductors of different specifications.

[0003] As in the prior art, the Chinese utility model patent with publication number CN102861987A discloses a laser head device for a laser paint stripping machine, which includes a support plate, an upper mounting plate, a lower mounting plate, an upper laser radiating gun and a lower laser radiating gun. The support plate is vertically fixed on the frame of the laser paint stripping machine, and one side of the support plate is provided with two threaded bosses distributed up and down, each threaded boss is provided with an adjustment screw that can move up and down, the upper mounting plate and the lower mounting plate are respectively connected to the adjustment screws on the upper and lower threaded bosses, and a pin is fixed on the upper mounting plate and the lower mounting plate, and the upper laser radiating gun and the lower laser radiating gun are respectively connected to the pins on the upper mounting plate and the lower mounting plate and can rotate around the pin. This prior art mainly realizes the adjustment of the paint stripping height and angle through the adjustable laser head device, and does not provide a positioning solution for the workpiece to be processed. In addition, the upper laser radiating gun and the lower laser radiating gun both have separate moving operations, lack synchronization, and cannot synchronously complete the processing of the workpiece, so that the processing surfaces do not correspond.

[0004] Therefore, it is necessary to develop a laser paint stripping machine which has a simple structure and high reliability, or can accurately position the workpiece to be processed, or can perform double-sided synchronous processing, or has strong applicability. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a double-head laser paint stripping machine in view of the deficiencies of the above-mentioned prior art.

[0006] The embodiment of the present invention provides a double-head laser paint stripping machine, which includes a frame, a working platform is installed on the frame, a positioning fixture is installed on the surface of the working platform, the working platform is used to place the workpiece to be processed and fix the workpiece to be processed by the positioning fixture, an upper laser paint stripping device is installed above the working platform, and a lower laser paint stripping device is installed below the working platform. The upper laser paint stripping device and the lower laser paint stripping device are jointly installed on an XY axis moving device and move synchronously. The working platform has a processing window and the lower surface to be processed of the workpiece to be processed is exposed through the processing window. The lower laser paint stripping device is used to strip the paint on the lower surface to be processed, and the upper laser paint stripping device is used to strip the paint on the upper surface to be processed of the workpiece to be processed. Its beneficial effects: the overall structure is simple and reliable, the synchronous paint stripping processing is realized by the synchronous movement of the upper laser paint stripping device and the lower laser paint stripping device, and the workpiece to be processed is fixed on the working platform, the accuracy of the paint stripping processing is improved from both the processing end and the processed end, and the upper laser paint stripping device and the lower laser paint stripping device can be processed simultaneously through the setting of the processing window, which is the basis for synchronous processing.

[0007] In some embodiments, an upper smoke extractor for absorbing smoke generated by the upper laser paint stripping device is installed above the working platform, and a lower smoke extractor for absorbing smoke generated by the lower laser paint stripping device is installed below the working platform. The beneficial effect is that the smoke generated by the upper laser paint stripping device and the lower laser paint stripping device during processing can be absorbed by the upper smoke extractor and the lower smoke extractor, respectively, to ensure the environmental protection and cleanliness of the processing environment, thereby improving the reliability of the equipment operation.

[0008] In some embodiments, the work platform is equipped with a limiter, the limiter is located above the processing window, the limiter has a through hole and communicates with the processing window, and the limiter is used to pre-position the workpiece to be processed on the work platform and expose the upper processing surface of the workpiece to be processed. Its beneficial effect: the workpiece to be processed is pre-positioned by the limiter, the positioning accuracy of the workpiece to be processed is improved, and it lays a foundation for replacing the limiter to adapt to the current processing window.

[0009] In some embodiments, the working platform has a plurality of countersunk holes, a processing window is formed in the middle of the countersunk hole, locking holes are arranged around the processing window, and the limiter is embedded in the countersunk hole and fixed on the locking hole by the locking piece. Its beneficial effect: by replacing the limiter, it can be applied to different workpieces to be processed, thereby improving the applicability of the equipment.

[0010] In some embodiments, the working platform includes a mounting frame, on which a working plate is detachably mounted, the working plate having a processing window and a positioning fixture detachably mounted. The beneficial effect is that by replacing the working plate with a processing window at a fixed position, a working platform with a processing window at a different position can be replaced to be suitable for workpieces of different shapes to be processed, thereby improving the applicability of the device.

[0011] In some embodiments, the XY axis moving device includes an X axis moving device mounted on a frame, and the Y axis moving device is mounted on the X axis moving device through a mounting plate, and the Y axis moving device is mounted with an upper laser paint stripping device and a lower laser paint stripping device through synchronous connecting plates extending above and below the working platform, respectively. Its beneficial effects: through a structure in which a simple synchronous connecting plate synchronously drives the upper laser paint stripping device and the lower laser paint stripping device to move along the XY axis, the upper laser paint stripping device and the lower laser paint stripping device are synchronously driven, and the structure is simple and reliable.

[0012] In some embodiments, a first laser generator and a second laser generator are mounted on the frame, the first laser generator emits laser light to the upper laser paint stripping device through the upper reflector device, and the second laser generator emits laser light to the lower laser paint stripping device through the lower reflector device. Its beneficial effect: by synchronously transferring the laser light through the upper reflector device and the lower reflector device and synchronously providing the laser light to the upper laser paint stripping device and the lower laser paint stripping device, reliable support is provided for the synchronous processing of the upper laser paint stripping device and the lower laser paint stripping device, thereby improving the reliability of the equipment.

[0013] In some embodiments, the upper reflector device includes a fixed upper reflector assembly and a movable upper reflector assembly, the lower reflector device includes a fixed lower reflector assembly and a movable lower reflector assembly, and the movable upper reflector assembly and the movable lower reflector assembly are assembled to the mounting plate. Its beneficial effect is that the fixed lower reflector assembly and the fixed upper reflector assembly receive the laser generator and continuously reflect to the movable upper reflector assembly and the movable lower reflector assembly, further providing reliable support for the synchronous processing of the upper laser paint stripping device and the lower laser paint stripping device, thereby improving the reliability of the equipment.

[0014] In some embodiments, the synchronous connection plate is equipped with an upper universal blowing device and a lower universal blowing device, the upper universal blowing device is used to blow and clean the waste residue generated by the upper laser paint stripping device, and the lower universal blowing device is used to blow and clean the waste residue generated by the lower laser paint stripping device. Its beneficial effects: through the arrangement of the upper universal blowing device and the lower universal blowing device, the influence of the waste residue on the processing is avoided, and the upper universal blowing device and the lower universal blowing device have a universal adjustment function, which can adjust the position according to the processing position, and can be applied to the blowing and cleaning operations of different processing positions, thereby improving the applicability of the equipment.

[0015] In some embodiments, a photoelectric safety protection device is installed on the frame, and the photoelectric safety protection device includes a photoelectric transmitter and a photoelectric receiver. The photoelectric transmitter is installed on one side of the feeding end of the frame, and the photoelectric receiver is installed on the other side of the feeding end of the frame. The photoelectric transmitter emits multiple infrared rays to cover the vertical surface of the feeding end, and the infrared rays are received by the photoelectric receiver. Its beneficial effect: the protection processing position can be controlled to stop at any time when it is disturbed by the feeding end, thereby avoiding safety problems and improving the safety of the equipment.

[0016] The details of one or more embodiments of the invention are set forth in the following drawings and description so that other features, objects, and advantages of the invention are more readily apparent. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 It is an overall structural diagram of a paint stripping machine according to an embodiment of the present invention.

[0019] Figure 2 1 is a structural diagram of a workpiece to be processed according to an embodiment of the present invention.

[0020] Figure 3 It is an internal structure diagram of a paint stripping machine according to an embodiment of the present invention.

[0021] Figure 4 The assembly structure of the XY axis moving device of the embodiment of the present invention is Figure 1 .

[0022] Figure 5 The assembly structure of the XY axis moving device of the embodiment of the present invention is Figure 2 .

[0023] Figure 6 It is an assembly structure diagram of an upper laser paint stripping device and a lower laser paint stripping device according to an embodiment of the present invention.

[0024] Figure 7 It is a loading structure diagram of a working platform according to an embodiment of the present invention.

[0025] Figure 8 It is an overall structural diagram of the working platform of an embodiment of the present invention.

[0026] Fig. 9 It is a decomposition structure diagram of the working platform of the embodiment of the present invention.

[0027] Fig.10 4 is a structural diagram of a limiter according to an embodiment of the present invention.

[0028] In the figure, 1, frame; 2, working platform; 3, positioning fixture; 4, upper laser paint stripping device; 5, lower laser paint stripping device; 6, XY axis moving device; 7, electric control device; 8, workpiece to be processed; 9, upper surface to be processed; 10, lower surface to be processed; 11, mounting frame; 12, working plate; 13, processing window; 15, limiter; 16, through hole; 17, countersunk hole; 18, locking hole; 19, convex edge; 20, X axis moving device; 21, Y axis moving device; 22, mounting plate; 23, synchronous connecting plate; 24, X axis support beam; 25, X axis motor; 26, X axis lead screw; 27, X axis lead screw nut; 28, X axis guide rail; 29, Y axis support beam; 30, Y axis motor; 31, Y axis lead screw; 32, Y axis lead screw nut; 33, Y axis guide rail; 34, upper connecting plate; 35, lower Connecting plate; 36, upper universal blowing device; 37, lower universal blowing device; 38, upper universal blowing pipe; 39, upper valve; 40, upper air nozzle; 41, lower universal blowing pipe; 42, lower valve; 43, lower air nozzle; 44, upper smoking device; 45, lower smoking device; 46, upper smoking hood; 47, upper air inlet mesh; 48, upper air outlet; 49, lower smoking hood; 50, lower air inlet mesh; 51, lower air outlet; 52, upper air guide inclined hood wall; 53, lower air guide inclined hood wall; 54, first laser generator; 55, second laser generator; 56, upper reflector device; 57, lower reflector device; 58, fixed upper reflector assembly; 59, movable upper reflector assembly; 60, fixed lower reflector assembly; 61, movable lower reflector assembly; 62, photoelectric transmitter; 63, photoelectric receiver. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is described and illustrated in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention. In addition, it can also be understood that although the efforts made in this development process may be complex and lengthy, for ordinary technicians in the field related to the contents disclosed by the present invention, some changes such as design, manufacturing or production based on the technical contents disclosed by the present invention are only conventional technical means, and should not be understood as insufficient contents disclosed by the present invention.

[0030] Reference to "embodiments" in the present invention means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those of ordinary skill in the art that the embodiments described in the present invention may be combined with other embodiments without conflict.

[0031] Unless otherwise defined, the technical terms or scientific terms involved in the present invention shall have the usual meanings understood by persons with ordinary skills in the technical field to which the present invention belongs. The words "one", "a", "a", "the" and the like involved in the present invention do not indicate a quantity limitation and may indicate the singular or plural. The terms "include", "comprise", "have" and any of their variations involved in the present invention are intended to cover non-exclusive inclusions; for example, a process, method, system, product or device that includes a series of steps or modules (units) is not limited to the listed steps or units, but may also include steps or units that are not listed, or may also include other steps or units inherent to these processes, methods, products or devices. The words "connect", "connected", "coupled" and the like involved in the present invention are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The "multiple" involved in the present invention refers to greater than or equal to two. "And / or" describes the association relationship of associated objects, indicating that there may be three relationships. For example, "A and / or B" may indicate: A exists alone, A and B exist at the same time, and B exists alone. The terms "first", "second", "third" and the like involved in the present invention are merely used to distinguish similar objects and do not represent a specific ordering of the objects.

[0032] like Figure 1-10As shown, a double-head laser paint stripping machine provided by an embodiment of the present invention mainly includes a frame 1, a working platform 2, a positioning fixture 3, an upper laser paint stripping device 4, a lower laser paint stripping device 5, an XY axis moving device 6 and an electronic control device 7. The overall structure of this embodiment is simple, but the reliability is strong. The synchronous paint stripping process is realized by synchronously moving the upper laser paint stripping device 4 and the lower laser paint stripping device 5, and the workpiece 8 to be processed is fixed on the working platform 2, so as to improve the accuracy of the paint stripping process from both the processing end and the processed end. Among them, the electronic control device 7 is an electronic control system device based on PLC control.

[0033] like Figure 2 As shown, the structure of the workpiece 8 to be processed in the embodiment of the present invention is specifically a lacquered conductor (wire) for new energy power batteries, whose cross section is flat. In the embodiment of the present invention, the upper surface and the lower surface at both ends of the lacquered conductor need to be processed into symmetrical paint stripping to expose copper surfaces of the same area and symmetrical positions. The upper surface is used as the upper surface to be processed 9, and the lower surface is used as the lower surface to be processed 10.

[0034] like Figure 1 As shown, the rack 1 of this embodiment is arranged as a processing part at the front end, an electric control part at the rear end, a smoking part located above and below the processing part, and a laser part located at the side of the rear end. Each part is separated by a partition.

[0035] like Figure 7-10 As shown, the working platform 2 of this embodiment is used to place the workpiece 8 to be processed and fix the workpiece 8 to be processed by the positioning fixture 3, and is assembled at the front end of the frame 1. The working platform 2 includes a mounting frame 11 erected at the front end of the frame 1, and a working plate 12 is detachably mounted on the mounting frame 11. The working plate 12 has processing windows 13 at preset positions and preset numbers, and is detachably mounted with the positioning fixture 3. The working platform 2 exposes the lower processing surface 10 of the workpiece 8 to be processed through the processing window 13. In this embodiment, by replacing the working plate 12 with the processing window 13 at a fixed position, it can be replaced with a working platform 2 with a processing window 13 at a different position, so as to be suitable for workpieces 8 to be processed of different shapes, thereby improving the applicability of the equipment.

[0036] like Figure 7-10As shown, on the basis of the structure of the above-mentioned working platform 2, the working flat plate 12 is equipped with a limiting member 15. The limiting member 15 is located above the processing window 13. The limiting member 15 has a through hole 16 and communicates with the processing window 13. The limiting member 15 is used for pre-positioning the workpiece 8 to be processed on the working flat plate 12 and exposing the upper surface 9 to be processed of the workpiece 8 to be processed. In this embodiment, the limiting member 15 is used to pre-position the workpiece 8 to be processed, improving the positioning accuracy of the workpiece 8 to be processed and laying a foundation for adapting to the current processing window 13 by replacing the limiting member 15. Specifically, there are several counterbores 17 on the working flat plate 12. The above-mentioned processing window 13 is formed in the middle of the counterbore 17. Locking holes 18 are arranged around the processing window 13. The limiting member 15 is fitted into the counterbore 17 and fixed to the locking holes 18 by locking members. In this embodiment, the equipment applicability is improved by replacing the limiting member 15 to adapt to different workpieces 8 to be processed. The positioning fixture 3 is fixed by a chuck. The limiting member 15 of this embodiment adopts a U-shaped structure, limits the workpiece 8 to be processed through the only opening, and has a convex edge 19 on the inner wall to support the end of the workpiece 8 to be processed, improving the reliability of positioning.

[0037] As Figure 3-6 shown, the upper laser paint stripping device 4 and the lower laser paint stripping device 5 of this embodiment. The lower laser paint stripping device 5 is used for paint stripping of the lower surface 10 (lower surface) to be processed, and the upper laser paint stripping device 4 is used for paint stripping of the upper surface 9 (upper surface) to be processed of the workpiece 8 to be processed. The upper laser paint stripping device 4 is assembled above the working platform 2, and the lower laser paint stripping device 5 is assembled below the working platform 2. The upper laser paint stripping device 4 and the lower laser paint stripping device 5 are jointly assembled on the XY-axis moving device 6 and move synchronously.

[0038] As Figure 3-6As shown, the XY axis moving device 6 of this embodiment includes an X axis moving device 20 mounted on the frame 1, and the Y axis moving device 21 is mounted on the X axis moving device 20 through a mounting plate 22, and the Y axis moving device 21 is mounted with an upper laser paint stripping device 4 and a lower laser paint stripping device 5 through synchronous connecting plates 23 extending to the upper and lower sides of the working platform 2, respectively. This embodiment uses a structure in which a simple synchronous connecting plate 23 synchronously drives the upper laser paint stripping device 4 and the lower laser paint stripping device 5 to move along the XY axis, thereby realizing synchronous driving of the upper laser paint stripping device 4 and the lower laser paint stripping device 5, and the structure is simple and reliable. Specifically, the X-axis moving device 20 includes an X-axis support beam 24 fixedly mounted on the frame 1, on which an X-axis motor 25, an X-axis screw 26, an X-axis screw nut 27 and an X-axis guide rail 28 are mounted, and the mounting plate 22 is mounted on the X-axis screw nut 27. The X-axis motor 25 drives the X-axis screw 26 to rotate, thereby driving the X-axis screw nut 27 and the mounting plate 22 to move along the X-axis direction of the X-axis guide rail 28. The Y-axis moving device 21 includes a Y-axis support beam 29 fixedly mounted on the mounting plate 22, on which a Y-axis motor 30, a Y-axis screw rod 31, a Y-axis screw rod nut 32 and a Y-axis guide rail 33 are mounted, and the synchronous connecting plate 23 is mounted on the Y-axis screw rod nut 32. The Y-axis motor 30 drives the Y-axis screw rod 31 to rotate, thereby driving the Y-axis screw rod nut 32 and the synchronous connecting plate 23 to move along the Y-axis direction of the Y-axis guide rail 33, and then drives the upper laser paint stripping device 4 and the lower laser paint stripping device 5 mounted on the synchronous connecting plate 23 to move synchronously. The synchronous connecting plate 23 has an upper connecting plate 34 extending above the working platform 2 and a lower connecting plate 35 extending below the working platform 2, the upper laser paint stripping device 4 is mounted on the upper connecting plate 34, and the lower laser paint stripping device 5 is mounted on the lower connecting plate. The synchronous connecting plate 23 has a simple structure and high reliability.

[0039] like Figure 3-6As shown, in this embodiment, the above-mentioned synchronous connection plate 23 is equipped with an upper universal blowing device 36 and a lower universal blowing device 37. The upper universal blowing device 36 is used to blow and clean the waste residue generated by the upper laser paint stripping device 4, and the lower universal blowing device 37 is used to blow and clean the waste residue generated by the lower laser paint stripping device 5. Specifically, the upper universal blowing device 36 has an upper universal blowing pipe 38, an upper valve 39 and an upper air nozzle 40. The air source supply device is connected and docked with the upper air nozzle 40 through the upper valve 39 and the upper universal blowing pipe 38, and the lower universal blowing device 37 has a lower universal blowing pipe 41, a lower valve 42 and a lower air nozzle 43. The air source supply device is connected and docked with the lower air nozzle 43 through the lower valve 42 and the lower universal blowing pipe 41. This embodiment avoids the influence of waste slag on processing by setting up the upper universal blowing device 36 and the lower universal blowing device 37, and the upper universal blowing tube 38 and the lower universal blowing tube 41 have a universal adjustment function, which can adjust the position according to the processing position, and can be suitable for blowing and cleaning operations at different processing positions, thereby improving the applicability of the equipment.

[0040] like Figure 1-3 As shown, in this embodiment, an upper smoke extraction device 44 for absorbing smoke generated by the upper laser paint stripping device 4 is installed above the working platform 2, and a lower smoke extraction device 45 for absorbing smoke generated by the lower laser paint stripping device 5 is installed below the working platform 2. In this embodiment, the smoke generated by the upper laser paint stripping device 4 and the lower laser paint stripping device 5 during processing is respectively absorbed by the upper smoke extraction device 44 and the lower smoke extraction device 45, so as to ensure the environmental protection and cleanliness of the processing environment, thereby improving the reliability of the equipment operation. Specifically, the upper smoke extraction device 44 has an upper smoke extraction cover body 46, and the upper smoke extraction cover body 46 has an upper air inlet mesh port 47 connected to the upper side of the working platform 2 and an upper air outlet port 48 connected to the fan, while the lower smoke extraction device 45 has a lower smoke extraction cover body 49, and the lower smoke extraction cover body 49 has a lower air inlet mesh port 50 connected to the lower side of the working platform 2 and a lower air outlet port 51 connected to the fan. The upper smoking hood 46 has an upper wind-guiding inclined hood wall 52, and the lower smoking hood 49 has a lower wind-guiding inclined hood wall 53, which improves the exhaust efficiency.

[0041] like Figure 3As shown, in this embodiment, the frame 1 is equipped with a first laser generator 54 and a second laser generator 55. The first laser generator 54 emits laser light to the upper laser paint stripping device 4 through the upper reflector device 56, and the second laser generator 55 emits laser light to the lower laser paint stripping device 5 through the lower reflector device 57. In this embodiment, the upper reflector device 56 and the lower reflector device 57 synchronously transfer the laser light and synchronously provide it to the upper laser paint stripping device 4 and the lower laser paint stripping device 5, thereby providing reliable support for the synchronous processing of the upper laser paint stripping device 4 and the lower laser paint stripping device 5, thereby improving the reliability of the equipment. Specifically, the upper reflector device 56 includes a fixed upper reflector assembly 58 and a movable upper reflector assembly 59, and the lower reflector device 57 includes a fixed lower reflector assembly 60 and a movable lower reflector assembly 61, and the movable upper reflector assembly 59 and the movable lower reflector assembly 61 are assembled to the mounting plate 22. This embodiment further provides reliable support for the synchronous processing of the upper laser paint stripping device 4 and the lower laser paint stripping device 5 by fixing the lower reflector assembly 60 and the upper reflector assembly 58 to receive the laser generator and continuously reflect to the movable upper reflector assembly 59 and the movable lower reflector assembly 61, thereby improving the reliability of the equipment.

[0042] like Figure 1 As shown, in this embodiment, a photoelectric safety protection device is installed on the frame 1, and the photoelectric safety protection device includes a photoelectric transmitter 62 and a photoelectric receiver 63. The photoelectric transmitter 62 is installed on one side of the feeding end of the frame 1, and the photoelectric receiver 63 is installed on the other side of the feeding end of the frame 1. The photoelectric transmitter 62 emits multiple infrared rays to cover the vertical surface of the feeding end, and the infrared rays are received by the photoelectric receiver 63. In this embodiment, the processing position can be controlled to stop at any time when it is disturbed by the feeding end, thereby avoiding safety problems and improving the safety of the equipment.

[0043] The working principle of the embodiment of the present invention is as follows: prepare a working plate 12 and a limiter 15 matching the workpiece 8 to be processed, install the limiter 15 on the working plate 12 in advance and then assemble them together on the mounting frame 11, and input the processing parameters into the electronic control device 7. The workpiece 8 to be processed is aligned with the limiter 15 and pre-positioned on the work platform 2, the workpiece 8 to be processed is fixed by the positioning fixture 3, the equipment is started, the photoelectric safety protection device is started, the electronic control device 7 drives the XY axis moving device 6 to drive the upper laser paint stripping device 4 and the lower laser paint stripping device 5 to move synchronously to the corresponding processing position, the first laser generator 54 and the second laser generator 55 emit lasers and send the lasers to the upper laser paint stripping device 4 and the lower laser paint stripping device 5 through the upper reflector assembly and the lower reflector assembly respectively, the upper laser paint stripping device 4 and the lower laser paint stripping device 5 synchronously output lasers to the workpiece 8 to be processed and are controlled to move by the XY axis moving device 6 according to the preset paint stripping path, after a single processing position is processed, the upper laser paint stripping device 4 and the lower laser paint stripping device 5 are automatically controlled by the XY axis moving device 6 to move to the next processing position to continue processing until the processing is completed, after the processing is completed, the photoelectric safety protection device stops, and the workpiece after processing is unloaded manually or by a robot.

[0044] Those skilled in the art should understand that the technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A double-head laser paint stripping machine, characterized in that: The invention comprises a frame (1), a working platform (2) is mounted on the frame (1), a positioning fixture (3) is mounted on the surface of the working platform (2), the working platform (2) is used to place a workpiece (8) to be processed and fix the workpiece (8) to be processed by the positioning fixture (3), an upper laser paint stripping device (4) is mounted above the working platform (2), and a lower laser paint stripping device (5) is mounted below the working platform (2), the upper laser paint stripping device (4) and the lower laser paint stripping device (5) are mounted together on an XY axis moving device (6) and move synchronously, the working platform (2) has a processing window (13) and a lower surface (10) to be processed of the workpiece (8) to be processed is exposed through the processing window (13), the lower laser paint stripping device (5) is used to strip the paint on the lower surface (10) to be processed, and the upper laser paint stripping device (4) is used to strip the paint on the upper surface (9) to be processed of the workpiece (8) to be processed; An upper smoke extraction device (44) for absorbing smoke generated by the upper laser paint stripping device (4) is installed above the working platform (2), and a lower smoke extraction device (45) for absorbing smoke generated by the lower laser paint stripping device (5) is installed below the working platform (2); The working platform (2) is equipped with a limiting member (15), the limiting member (15) is located above the processing window (13), the limiting member (15) has a through hole (16) and communicates with the processing window (13), the limiting member (15) is used to pre-position the workpiece (8) to be processed on the working platform (2) and expose the upper processing surface (9) of the workpiece (8) to be processed; The XY-axis moving device (6) comprises an X-axis moving device (20) mounted on the frame (1), and a Y-axis moving device (21) is mounted on the X-axis moving device (20) via a mounting plate (22), and the Y-axis moving device (21) is mounted on the upper laser paint stripping device (4) and the lower laser paint stripping device (5) via synchronous connecting plates (23) extending respectively to the upper and lower parts of the working platform (2).

2. A double-head laser paint stripping machine according to claim 1, characterized in that: The working platform (2) has a plurality of countersunk holes (17), the processing window (13) is formed in the middle of the countersunk hole (17), locking holes (18) are arranged around the processing window (13), and the limiting member (15) is embedded in the countersunk hole (17) and fixed to the locking hole (18) by a locking member.

3. A double-head laser paint stripping machine according to claim 1, characterized in that: The working platform (2) comprises a mounting frame (11), on which a working plate (12) is detachably mounted, the working plate (12) having the processing window (13) and detachably mounted with the positioning fixture (3).

4. A double-head laser paint stripping machine according to claim 1, characterized in that: The frame (1) is equipped with a first laser generator (54) and a second laser generator (55); the first laser generator (54) emits laser light to the upper laser paint stripping device (4) via an upper reflector device (56) mounted on the frame (1); and the second laser generator (55) emits laser light to the lower laser paint stripping device (5) via a lower reflector device (57) mounted on the frame (1).

5. A double-head laser paint stripping machine according to claim 4, characterized in that: The upper reflector device (56) comprises a fixed upper reflector assembly (58) and a movable upper reflector assembly (59), the lower reflector device (57) comprises a fixed lower reflector assembly (60) and a movable lower reflector assembly (61), and the movable upper reflector assembly (59) and the movable lower reflector assembly (61) are assembled onto the mounting plate (22).

6. A double-head laser paint stripping machine according to claim 1, characterized in that: The synchronous connection plate (23) is equipped with an upper universal blowing device (36) and a lower universal blowing device (37); the upper universal blowing device (36) is used to blow away the waste residue generated by the upper laser paint stripping device (4); and the lower universal blowing device (37) is used to blow away the waste residue generated by the lower laser paint stripping device (5).

7. A double-head laser paint stripping machine according to claim 1, characterized in that: The frame (1) is equipped with a photoelectric safety protection device, the photoelectric safety protection device comprising a photoelectric transmitter (62) and a photoelectric receiver (63), the photoelectric transmitter (62) being installed on one side of a feeding end of the frame (1), and the photoelectric receiver (63) being installed on the other side of the feeding end of the frame (1), the photoelectric transmitter (62) emitting a plurality of infrared rays to cover a vertical surface of the feeding end, and the infrared rays are received by the photoelectric receiver (63).

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