A laser cleaning device for the insulation skin of flat copper wire

Abstract

The present application relates to the technical field of laser cleaning, and particularly relates to a kind of flat copper wire insulation skin laser cleaning device, including fixed base, fixed base is opened with the transport port for flat copper wire body to pass through, transport port front side is provided with the connecting frame connected with fixed base, connecting frame is provided with two front and rear settings, and both are coaxially arranged with transport port and set up sheath, sheath is provided with air cavity, sheath outer wall is provided with multiple gas inlets, sheath inner wall is opened with multiple exhaust holes communicated with air cavity, the region between two sheaths is processing area, and processing area is surrounded by multiple laser scanning heads connected with fixed base;The laser beam emitted by laser scanning head is used for laser cleaning on the cleaning area of flat copper wire body in processing area, protective gas enters the air cavity of sheath through gas inlet, and is blown to cleaning area from non-cleaning section of flat copper wire body through exhaust hole, so that non-cleaning section is not polluted by stain and cleaning area is cleaned, and production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of laser cleaning, in particular to a kind of copper wire insulation skin laser cleaning device. BACKGROUND

[0002] The existing automobile new energy industry breaks out, and new energy vehicles generally use flat copper wire to manufacture motor winding, so the demand for flat copper wire motor is growing rapidly.

[0003] The insulation layer at both ends of the flat copper wire needs to be removed before welding. Currently, laser cleaning technology is commonly used to remove the insulation layer. When the insulation layer is cleaned by laser, there will be a large amount of pollutants at the boundary of the cleaning area. These pollutants are harmful to the subsequent welding process, reducing the yield of good welding, and thus affecting the production efficiency.

[0004] On August 26, 2022, a patent with publication number CN217289624U and name of a device for cleaning the paint layer of flat copper wire in flat wire motor was disclosed. The device includes a flat copper transport line for transporting flat copper wire during cleaning. A pair of fixed rotating components for changing the angle of the flat copper wire are arranged in front of and behind the flat copper transport line. Cleaning assemblies for cleaning the flat copper wire are arranged on the left and right sides of the flat copper transport line. The cleaning assemblies on the left and right sides are oppositely arranged. The angle of the flat copper wire is changed before cleaning, so that the cleaning device on each side can cover two surfaces at a time during cleaning, thereby improving the cleaning efficiency. However, the applicant found that the device does not effectively handle the pollutants at the boundary of the cleaning area, resulting in low production efficiency of the flat copper wire. SUMMARY

[0005] In view of the above, the purpose of the present application is to provide a kind of copper wire insulation skin laser cleaning device to solve the problem of low production efficiency of flat copper wire.

[0006] To achieve the above purpose, the present application provides a kind of copper wire insulation skin laser cleaning device, which includes a fixed base, the fixed base is provided with a transport port for the flat copper wire body, the transport port front side is provided with a connecting frame connected with the fixed base, the connecting frame is provided with two front and rear arranged sheaths coaxially arranged with the transport port, the sheath is provided with a gas cavity, the outer wall of the sheath is provided with a plurality of gas inlets at equal angles, the gas inlet is communicated with a gas inlet for conveying protective gas, the inner wall of the sheath is uniformly provided with a plurality of exhaust holes communicated with the gas cavity, the area between the two sheaths is a processing area, and the processing area is surrounded by a plurality of laser scanning heads connected with the fixed base.

[0007] The laser beam emitted by the laser scanning head performs laser cleaning on the cleaning area of ​​the flat copper wire body in the processing area. Protective gas enters the air chamber of the sheath through the air inlet pipe and is blown from the uncleaned section of the flat copper wire body to the cleaning area through the exhaust hole, protecting the uncleaned section from contamination and cleaning the cleaning area.

[0008] Optionally, an annular air knife is connected to the connecting frame and is coaxially arranged with the transport port, and the sheath passes through the annular air knife.

[0009] Optionally, each of the two sheaths is provided with a bracket for supporting the flat copper wire body on one side of the opposite arrangement, and the bracket is connected to the connecting frame.

[0010] Optionally, the bracket is provided with two transport wheels arranged vertically, the flat copper wire body passes between the two transport wheels, and the flat copper wire body abuts against the two transport wheels.

[0011] Optionally, the bracket is provided with two transmission wheels that respectively contact the two sides of the flat copper wire body.

[0012] Optionally, the inner walls of the opposite ends of the two sheaths are each provided with an annular airbag communicating with the air cavity.

[0013] Optionally, the side of the air inlet near the cleaning zone is connected to an annular inclined baffle located inside the air chamber, and the inner side of the inclined baffle is located near the annular airbag.

[0014] Optionally, an inclined conduit is provided in the inner wall of the sheath, and the air chamber and the exhaust port are connected through the inclined conduit. The end of the inclined conduit away from the cleaning area is connected to the exhaust port opened on the inner wall of the air chamber. The end of the inclined conduit closer to the cleaning area is closer to the flat copper wire body than the exhaust port. The outlet of the exhaust port is inclined towards the cleaning area.

[0015] Optionally, the protective gas is compressed air, nitrogen, argon, or helium.

[0016] The beneficial effects of this invention are as follows: The laser cleaning device for flat copper wire insulation provided by this invention allows for the cleaning of the flat copper wire body by inserting the flat copper wire body into two sheaths and moving the cleaning area on the flat copper wire body between the two sheaths. The laser beam emitted by the laser scanning head performs laser cleaning on the cleaning area on the flat copper wire body. In addition, protective gas enters the air chamber of the sheath through the air inlet pipe, disperses into an airflow, enters the exhaust port, and is blown from the uncleaned section of the flat copper wire body to the cleaning area, protecting the uncleaned section from contamination and cleaning the cleaning area, thereby improving the production efficiency of the flat copper wire body. Attached Figure Description

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only show the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without any creative effort.

[0018] Figure 1 It is a structural schematic diagram of the present application;

[0019] Figure 2 It is a structural schematic diagram of the present application;

[0020] Figure 3 It is a partial main view structural schematic diagram of the present application;

[0021] Figure 4 It is a side view structural schematic diagram of the present application; Figure 3

[0022] Figure 5 It is an internal structural schematic diagram of the present application;

[0023] Figure 6 It is a partial structural schematic diagram of the present application;

[0024] Figure 7 It is a structural schematic diagram of the inclined guide pipe of the present application.

[0025] In the figure: 1, fixed base; 2, transport port; 3, connecting frame; 4, support; 5, transport wheel; 6, flat copper wire body; 7, cleaning area; 8, sheath; 9, air cavity; 10, air inlet; 11, exhaust hole; 12, air inlet pipe; 13, protective gas; 14, air flow; 15, laser scanning head; 16, laser beam; 17, annular air bag; 18, annular air knife; 19, inclined guide pipe; 20, guide pipe section; 21, curved communication pipe. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present application more clear, the following will further describe the present application in combination with specific embodiments and with reference to the drawings.

[0027] ​It should be noted that the technical terms or scientific terms used in the embodiments of the present application should be understood as the general meaning understood by those skilled in the art to which the present application belongs, unless otherwise defined. The "first", "second" and similar words used in the present application do not represent any order, quantity or importance, but are only used to distinguish different components. "Include" or "contain" and similar words mean that the elements or objects before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connected" or "connected" and similar words are not limited to physical or mechanical connection, but can include electrical connection, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0028] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 5 A kind of copper wire insulation skin laser cleaning device, including fixed base 1, the fixed base 1 is opened on the transport port 2 for flat copper wire body 6 to pass through, the transport port 2 front side is provided with the connecting frame 3 connected with the fixed base 1, the connecting frame 3 is provided with two front and rear settings, and the sheath 8 is coaxially arranged with the transport port 2, the sheath 8 is provided with air cavity 9 in, the sheath 8 outer side wall is provided with multiple air inlets 10 at equal angles, the air inlet 10 is communicated with the air inlet 10 for conveying protective gas 13, the sheath 8 inner side wall is evenly provided with multiple exhaust holes 11 communicated with the air cavity 9, the area between two sheaths 8 is processing area, the processing area is surrounded by multiple laser scanning heads 15 connected with the fixed base 1;

[0029] The laser beam 16 emitted by the laser scanning head 15 performs laser cleaning on the cleaning area 7 on the flat copper wire body 6 in the processing area, the protective gas 13 enters the air cavity 9 of the sheath 8 through the air inlet pipe 12, and is blown to the cleaning area 7 from the non-cleaning section of the flat copper wire body 6 through the exhaust hole 11, to protect the non-cleaning section from being contaminated by stains and clean the cleaning area 7.

[0030] When the flat copper wire body 6 needs to be cleaned, the flat copper wire body 6 is inserted into the two sheaths 8, the cleaning area 7 on the flat copper wire body 6 is moved between the two sheaths 8, the laser beam 16 emitted by the laser scanning head 15 performs laser cleaning on the cleaning area 7 on the flat copper wire body 6, in addition, the protective gas 13 enters the air cavity 9 of the sheath 8 through the gas inlet pipe 12, the protective gas 13 is dispersed into the gas flow 14 entering the exhaust hole 11, and the non-cleaning section of the flat copper wire body 6 is blown to the cleaning area 7 to prevent the non-cleaning section from being contaminated by stains and to clean the cleaning area 7, thereby improving the production efficiency of the flat copper wire body 6, and the high-pressure protective gas 13 blows away the pollutants generated during cleaning, so that the pollutants cannot adhere to the non-cleaning section.

[0031] The protective gas 13 can be compressed air, nitrogen, argon, helium, etc., and the input pressure of the protective gas 13 is generally 0.1 bar-10 bar, and the flow rate of the protective gas 13 is 1-1000 L / min.

[0032] As shown in Figure 2 The connecting frame 3 is connected with an annular air knife 18 coaxially arranged with the conveying port 2, and the sheath 8 passes through the annular air knife 18, so that the annular air knife 18 can clean the outer side wall of the sheath 8.

[0033] The opposite sides of the two sheaths 8 are provided with supports 4 for supporting the flat copper wire body 6, and the supports 4 are connected with the connecting frame 3, so that the supports 4 can support the flat copper wire body 6 and make the flat copper wire body 6 be located in the middle of the sheath 8.

[0034] As shown in Figure 4 and Figure 5 The supports 4 are provided with two upper and lower conveying wheels 5, the flat copper wire body 6 passes between the two conveying wheels 5, and the flat copper wire body 6 abuts against the two conveying wheels 5, the axis of the conveying wheel 5 is horizontally arranged and vertically arranged with the moving direction of the flat copper wire body 6, on the one hand, the end of the conveying wheel 5 is drivingly connected with a driving motor, the driving motor drives the conveying wheel 5 to rotate, thereby conveying the flat copper wire body 6, on the other hand, the two upper and lower conveying wheels 5 can also fix the flat copper wire body 6, so as to keep the rigidity of the flat copper wire body 6 in the radial direction and prevent the flat copper wire body 6 from vibrating.

[0035] The supports 4 are provided with two transmission wheels respectively contacting the two side surfaces of the flat copper wire body 6, the axis of the transmission wheel is vertically arranged and vertically arranged with the moving direction of the flat copper wire body 6, the transmission wheel is arranged to facilitate the transportation of the flat copper wire body 6, in addition, the transmission wheel also limits the transportation direction of the flat copper wire body 6 to prevent the flat copper wire body 6 from deflecting.

[0036] The inner side wall of one end of the two opposite setting sheaths 8 is provided with an annular air bag 17 communicated with the air cavity 9, the protective gas 13 enters the annular air bag 17 through the air cavity 9, the annular air bag 17 expands and abuts against the outer side wall of the flat copper wire body 6, the annular air bag 17 blocks one end of the passage between the sheath 8 and the flat copper wire body 6, so that the protective gas 13 can only blow to the cleaning area 7, and the utilization rate of the protective gas 13 is improved.

[0037] The side of the air inlet 10 close to the cleaning area 7 is connected with an annular inclined baffle located in the air cavity 9, the inner side of the inclined baffle is close to the annular air bag 17, and the outer side of the inclined baffle is closer to the cleaning area 7 than the inner side of the inclined baffle, the setting of the inclined baffle facilitates the protective gas 13 to flow to the side far away from the cleaning area 7 first, the exhaust hole 11 far away from the cleaning area 7 first flows the protective gas 13 to the cleaning area 7, the exhaust hole 11 close to the cleaning area 7 flows the protective gas 13 to the cleaning area 7 later, the movement of the protective gas 13 flowing out of the exhaust hole 11 to the annular air bag 17 is reduced, and the flow efficiency of the protective gas 13 is improved.

[0038] As shown in Figure 6 and Figure 7 , the side wall of the inner side wall of the sheath 8 is provided with an inclined pipe 19, the inclined pipe 19 includes a plurality of pipe sections 20 arranged at equal intervals and matched with a plurality of the exhaust holes 11 one by one, two adjacent pipe sections 20 are communicated through a curved communication pipe 21, the setting of the curved communication pipe 21 prolongs the stay time of the protective gas 13 in the inclined pipe 19, so that the protective gas 13 flowing out of the exhaust hole 11 far away from the cleaning area 7 reaches the cleaning area 7 faster than the protective gas 13 flowing out of the exhaust hole 11 close to the cleaning area 7, in addition, the protective gas 13 flowing out of the exhaust hole 11 far away from the cleaning area 7 also drives the protective gas 13 flowing out of the exhaust hole 11 later to move to the cleaning area 7, the air cavity 9 and the exhaust hole 11 are communicated through the inclined pipe 19, one end of the inclined pipe 19 far away from the cleaning area 7 is communicated with an exhaust port arranged on the inner side wall of the air cavity 9, one end of the inclined pipe 19 close to the cleaning area 7 is arranged closer to the flat copper wire body 6 than the exhaust port, and the outlet of the exhaust hole 11 is inclined and arranged towards the cleaning area 7, so as to facilitate the protective gas 13 to directly move to the cleaning area 7, and reduce the flow of the protective gas 13 to the direction where the annular air bag 17 is arranged.

[0039] Those skilled in the art should understand that the above discussion of any embodiment is merely exemplary in nature and is not intended to imply that the present application is limited to these examples; any of the above embodiments or technical features between different embodiments can be combined, and steps can be implemented in any order, and there are many other variations of the different aspects of the present application as described above, which are not provided in detail for the sake of brevity. It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application cover modifications and variations of this application provided they come within the scope of the appended claims and their equivalents.

[0040] It is intended that the embodiments of the present application cover all such alternatives, modifications and variations as come within the scope of the broadest possible interpretation of the appended claims. Accordingly, all such modifications and variations are intended to be included herein within the scope of the present application. The terms "comprise", "comprising", "include", "including", "have" and "having" and variants thereof are used herein to indicate non- limitation.

Claims

1. A laser cleaning device for the insulation sheath of flat copper wire, comprising a fixed base (1), characterized in that, The fixed base (1) is provided with a transport port (2) for the flat copper wire body (6) to pass through, the front side of the transport port (2) is provided with a connecting frame (3) connected with the fixed base (1), the connecting frame (3) is provided with two sheaths (8) arranged front and back and coaxially arranged with the transport port (2), the sheath (8) is provided with an air cavity (9) inside, the outer side wall of the sheath (8) is provided with a plurality of air inlets (10) at equal angles, the air inlets (10) are communicated with a gas inlet for conveying protective gas (13), the inner side wall of the sheath (8) is uniformly provided with a plurality of air exhaust holes (11) communicated with the air cavity (9), the area between the two sheaths (8) is a processing area, the processing area is surrounded by a plurality of laser scanning heads (15) connected with the fixed base (1); the laser beam (16) emitted by the laser scanning head (15) performs laser cleaning on the cleaning area (7) on the flat copper wire body (6) in the processing area, the protective gas (13) enters the air cavity (9) of the sheath (8) through the air inlet pipe (12), and is blown to the cleaning area (7) from the non-cleaning section of the flat copper wire body (6) through the air exhaust hole (11), so as to protect the non-cleaning section from being polluted by stains and clean the cleaning area (7); the inner side wall of one end of the two sheaths (8) arranged oppositely is provided with an annular air bag (17) communicated with the air cavity (9); one side of the air inlet (10) close to the cleaning area (7) is connected with an annular inclined baffle located in the air cavity (9), the inner side of the inclined baffle is close to the annular air bag (17); an inclined guide pipe (19) is arranged in the side wall of the inner side wall of the sheath (8), the air cavity (9) and the air exhaust hole (11) are communicated through the inclined guide pipe (19), one end of the inclined guide pipe (19) away from the cleaning area (7) is communicated with an air outlet arranged on the inner side wall of the air cavity (9), one end of the inclined guide pipe (19) close to the cleaning area (7) is arranged closer to the flat copper wire body (6) than the air outlet, and the outlet of the air exhaust hole (11) is inclined and arranged towards the cleaning area (7).The inclined conduit comprises a plurality of conduit segments arranged at equal intervals and matched with the plurality of exhaust holes one by one, and two adjacent conduit segments are communicated through a curved communication pipe, the arrangement of the curved communication pipe prolongs the residence time of the protective gas in the inclined conduit, so that the protective gas discharged from the exhaust hole far away from the cleaning zone reaches the cleaning zone faster than the protective gas discharged from the exhaust hole close to the cleaning zone, and in addition, the protective gas discharged from the exhaust hole far away from the cleaning zone also drives the protective gas discharged later from the exhaust hole to move towards the cleaning zone, the gas cavity and the exhaust hole are communicated through the inclined conduit, one end of the inclined conduit arranged far away from the cleaning zone is communicated with the exhaust port arranged on the inner side wall of the gas cavity, one end of the inclined conduit arranged close to the cleaning zone is arranged closer to the flat copper wire body than the exhaust port, and the outlet of the exhaust hole is arranged obliquely towards the cleaning zone, so as to facilitate the direct movement of the protective gas towards the cleaning zone and reduce the flow of the protective gas towards the direction in which the annular air bag is arranged.

2. The laser cleaning apparatus for the insulation coating of flat copper wire according to claim 1, wherein The connecting frame (3) is connected with an annular air knife (18) coaxially arranged with the conveying port (2), and the sheath (8) passes through the annular air knife (18).

3. The laser cleaning apparatus for insulating coating of flat copper wire according to claim 1, wherein The opposite sides of the two sheaths (8) are both provided with a support (4) for supporting the flat copper wire body (6), and the support (4) is connected with the connecting frame (3).

4. The laser cleaning apparatus for the insulation coating of flat copper wire according to claim 3, wherein The support (4) is provided with two conveying wheels (5) arranged in an up-down mode, the flat copper wire body (6) passes between the two conveying wheels (5), and the flat copper wire body (6) abuts against the two conveying wheels (5).

5. The laser cleaning apparatus for insulating coating of flat copper wire according to claim 4, wherein The support (4) is provided with two conveying wheels (5) respectively in contact with the two side surfaces of the flat copper wire body (6).

6. The laser cleaning apparatus for the insulation coating of flat copper wire according to claim 1, wherein The protective gas (13) is compressed air, nitrogen, argon or helium.

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