Downpipe welding bead laser cleaning device

Abstract

The utility model discloses a downpipe welding bead laser cleaning device which is characterized by comprising a rack, a workpiece clamping mechanism and a laser cleaning mechanism, wherein the workpiece clamping mechanism and the laser cleaning mechanism are mounted on the rack; the workpiece clamping mechanism comprises a left side positioning piece, a right side positioning piece, a left side driving piece and a right side driving piece, the left side positioning piece is rotationally installed on the rack, and the left side driving piece drives the left side positioning piece to rotate; the right side positioning piece is transversely and movably arranged on the right side of the left side positioning piece, the right side driving piece drives the right side positioning piece to be close to or away from the left side positioning piece, and a clamping space is formed between the left side positioning piece and the right side positioning piece; the laser cleaning mechanism is arranged on the rear side of the clamping space and comprises a laser cleaning head and a driving mechanism, and the driving mechanism drives the laser cleaning head to move transversely, vertically and longitudinally. According to the utility model, the cleaning cost is effectively reduced, and the device is more environment-friendly.

Description

Technical Field

[0001] This utility model relates to the field of downpipe manufacturing and processing, and in particular to a laser cleaning device for downpipe welds. Background Technology

[0002] Metal drain pipes undergo welding during production, resulting in surface oxide layers, rust, oil stains, and welding residue at the weld points. To ensure product aesthetics and quality, electrolytic cleaning is a common treatment method. The core principle is that electric current drives ion migration in the electrolyte, causing an oxidation-reduction reaction on the workpiece surface, decomposing, peeling off, or dissolving contaminants. However, this method has the following drawbacks:

[0003] 1. High energy consumption: The electrolysis process requires continuous power supply, and the current density directly affects the cleaning speed. Large-scale production results in significant energy consumption and increased costs.

[0004] 2. Material compatibility limitations: Reactive metals such as aluminum and magnesium are easily over-corroded in the electrolyte;

[0005] 3. Complex electrolyte management: Metal ions and organic matter gradually accumulate in the electrolyte, requiring regular replacement to maintain efficiency. Waste liquid treatment costs are high, and waste liquid containing heavy metals or acids and alkalis requires professional treatment, which poses a problem of environmental protection.

[0006] 4. High equipment and maintenance costs: Due to the complexity of the equipment and the use of electrolysis, both equipment and maintenance costs are high.

[0007] 5. Safety hazards exist: There is a risk of gas release, which poses an explosion hazard. In addition, the electrolyte is a chemical solution, which also poses a safety hazard for workers who come into contact with it. Summary of the Invention

[0008] The purpose of this invention is to provide a laser cleaning device for welded seams of downpipes. By using this structure, energy consumption is saved, costs are reduced, and safety hazards are also reduced.

[0009] To achieve the above objectives, the technical solution adopted by this utility model is: a laser cleaning device for downpipe welds, comprising a frame, a workpiece clamping mechanism mounted on the frame, and a laser cleaning mechanism;

[0010] The workpiece clamping mechanism includes a left positioning component, a right positioning component, a left driving component, and a right driving component. The left positioning component is rotatably mounted on the frame, and the left driving component is configured to drive the left positioning component to rotate. The right positioning component is laterally moved to the right of the left positioning component, and the right driving component is configured to drive the right positioning component to move closer to or away from the left positioning component. There is a clamping space between the left and right positioning components.

[0011] The laser cleaning mechanism is located on the rear side of the clamping space. The laser cleaning mechanism includes a laser cleaning head and a driving mechanism. The driving mechanism drives the laser cleaning head to move laterally, vertically, and longitudinally.

[0012] In the above technical solution, the frame is provided with a left fixed seat, the left side of the left positioning member is rotatably connected to the left fixed seat, and the left driving member is installed on the left fixed seat.

[0013] In the above technical solution, multiple positioning pins are provided on the right side of the left positioning component.

[0014] In the above technical solution, the right side of the left positioning member is provided with a plurality of mounting holes, and the left end of each positioning pin is respectively installed in one of the mounting holes;

[0015] And / or, the number of mounting holes is greater than the number of limiting pins.

[0016] In the above technical solution, the right positioning component includes a slider, a conical top block, and a right fixed seat. The top of the right fixed seat is provided with a first transverse slide rail. The right driving component is installed on the right fixed seat. The bottom of the slider is slidably disposed on the first transverse slide rail. The right driving component drives the slider to move on the first transverse slide rail. The right end of the conical top block is rotatably connected to the left side of the slider.

[0017] In the above technical solution, the frame is further provided with a second transverse slide rail, the bottom of the right fixed seat is slidably disposed on the second transverse slide rail, and the right fixed seat is provided with a locking component, which locks and limits the right fixed seat to the second transverse slide rail.

[0018] In the above technical solution, the conical top block is positioned directly opposite the left positioning member, and the axis of the left positioning member at the rotatable connection with the frame is coaxial with the conical top block.

[0019] In the above technical solution, the driving mechanism includes a bracket, a horizontal driving mechanism, a vertical driving mechanism and a longitudinal driving mechanism mounted on the bracket. The bracket is mounted on the frame, and a base frame slides horizontally on the bracket. The horizontal driving mechanism is mounted on the bracket and drives the base frame to move horizontally on the bracket. The longitudinal driving mechanism is mounted on the base frame, and a vertical frame slides longitudinally on the base frame. The longitudinal driving mechanism drives the vertical frame to move longitudinally on the base frame.

[0020] The vertical drive mechanism is mounted on the stand, and the laser cleaning head is vertically slidably mounted on the stand. The vertical drive mechanism drives the laser cleaning head to move vertically on the stand.

[0021] In the above technical solution, a mounting bracket is slidably mounted on the upright frame, the laser cleaning head is mounted on the mounting bracket, and the vertical drive mechanism drives the mounting bracket to move vertically along the upright frame.

[0022] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0023] 1. In this utility model, a workpiece clamping mechanism is used to clamp the product, and then a laser cleaning head is used to clean the parts of the product that need to be cleaned. Compared with the previous electrolytic cleaning method, the equipment cost and cleaning cost are lower, it is more environmentally friendly, and it can also effectively reduce safety hazards.

[0024] 2. The workpiece clamping mechanism in this utility model can clamp products of different models, effectively ensuring the scope of application and reducing costs. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure in Embodiment 1 of this utility model;

[0026] Figure 2 yes Figure 1 A schematic diagram of the three-dimensional structure;

[0027] Figure 3 This is a schematic diagram of the downpipe structure in Embodiment 1 of this utility model;

[0028] Figure 4 This is a schematic diagram of the workpiece clamping mechanism in the state of clamping the downpipe in Embodiment 1 of this utility model;

[0029] Figure 5 yes Figure 4 A schematic diagram of the three-dimensional structure;

[0030] Figure 6 yes Figure 4 A sectional view;

[0031] Figure 7 This is a schematic diagram of the laser cleaning mechanism in Embodiment 1 of this utility model.

[0032] The components include: 1. Frame; 2. Workpiece clamping mechanism; 3. Laser cleaning mechanism; 4. Left positioning component; 5. Right positioning component; 6. Left driving component; 7. Right driving component; 8. Clamping space; 9. Laser cleaning head; 10. Drive mechanism; 11. Downpipe; 12. Pipe body; 13. Flange plate; 14. Left fixed seat; 15. Positioning pin; 16. Hole; 17. Slider; 18. Conical top block; 19. Right fixed seat; 20. First transverse slide rail; 21. Second transverse slide rail; 22. Locking component; 23. Bracket; 24. Transverse drive mechanism; 25. Vertical drive mechanism; 26. Longitudinal drive mechanism; 27. Base frame; 28. Stand; 29. ​​Mounting frame. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0034] Example 1: See Figure 1-7 As shown, a laser cleaning device for weld seams of downpipes includes a frame 1, a workpiece clamping mechanism 2 and a laser cleaning mechanism 3 mounted on the frame 1.

[0035] The workpiece clamping mechanism 2 includes a left positioning member 4, a right positioning member 5, a left driving member 6, and a right driving member 7. The left positioning member 4 is rotatably mounted on the frame 1, and the left driving member 6 is configured to drive the left positioning member 4 to rotate. The right positioning member 5 is laterally moved to the right of the left positioning member 4, and the right driving member 7 is configured to drive the right positioning member 5 to move closer to or away from the left positioning member 4. There is a clamping space 8 between the left positioning member 4 and the right positioning member 5.

[0036] The laser cleaning mechanism 3 is located on the rear side of the clamping space 8. The laser cleaning mechanism 3 includes a laser cleaning head 9 and a driving mechanism 10. The driving mechanism 10 drives the laser cleaning head 9 to move laterally, vertically, and longitudinally, and the working end of the laser cleaning head is positioned facing forward.

[0037] In this embodiment, the product is a downpipe 11, which includes a pipe body 12 and a flange plate 13 connected to the left side of the pipe body. The left side of the pipe body and the right side of the flange plate are welded and fixed in the middle. The weld joint where the pipe body and the flange plate are connected is the area that needs to be cleaned. Of course, if the outer surface of the pipe body also has a weld, the weld joint can also be used as a cleaning area (after bending a piece of sheet metal, the two ends of the sheet metal are welded. If the weld joint is set parallel to the axis of the pipe body, then during installation, the weld joint is directly opposite the laser cleaning head. After the laser cleaning head is moved to the cleaning position directly opposite the weld joint, the drive mechanism drives the laser cleaning head to move laterally for cleaning). In this utility model, the pipe body can be a pure cylindrical structure, a pure square structure, or a combination of square and circular. In this embodiment, the pipe body includes a cylindrical pipe body on the right side and a square pipe body on the left side. The left side of the cylindrical pipe body is connected to the right side of the square pipe body, and the left side of the square pipe body is welded and fixed to the flange plate. When cleaning the welded joint (the connection between the pipe body and the flange), the left side of the flange plate rests against the left-side positioning piece, and the right end of the pipe body faces the right-side positioning piece. The right-side drive unit then moves the right-side positioning piece to the left, pressing the product onto the left and right-side positioning pieces, thus confining the product within the clamping space. The left end of the right-side positioning piece is rotatable. The left-side drive unit then rotates the left-side positioning piece, synchronously rotating the product. The drive mechanism then moves the laser head along three axes (horizontal, vertical, and longitudinal), moving the laser head to the area requiring cleaning. Alternatively, the right side of the product can first rest against the right-side positioning piece, and then the right-side positioning piece moves to the left, placing the left side of the product against the left-side positioning piece. A controller is installed on the frame to control the drive mechanism, the left-side drive piece, the right-side drive piece, and the laser cleaning head. Because the welded joints of the product are square, the laser head moves longitudinally back and forth while cleaning the area. This ensures the laser cleaning head won't be damaged by the product and maintains the optimal distance between the laser cleaning head and the area to be cleaned, guaranteeing cleaning effectiveness. After cleaning, the drive mechanism moves the laser cleaning head away from the product, ready for replacement. When replacing the product, the left drive component stops working, and then the right drive component moves the right positioning component to the right, ensuring the distance between the left and right positioning components is greater than the product's length. This allows for easy disassembly and replacement of the product.

[0038] See Figure 4-6 As shown, the frame 1 is provided with a left fixed seat 14, the left side of the left positioning member 4 is rotatably connected to the left fixed seat 14, and the left driving member 6 is installed on the left fixed seat 14.

[0039] In this embodiment, the left driving component is a motor, and the left positioning component and the left fixed base are rotatably connected. The left driving component can drive the left positioning component to rotate.

[0040] See Figure 4-6 As shown, a plurality of positioning pins 15 are provided on the right side of the left positioning component 4.

[0041] The product's flange plate has holes 16 for subsequent installation. Locating pins are set directly opposite the holes on the flange plate. Preferably, there are at least two locating pins. Therefore, when positioning the left side of the product, the left side of the flange plate is directly pressed against the right side of the left locating component, and the locating pins are inserted into the holes of the flange plate. Thus, the product is clamped by the right and left locating components. When the left locating plate rotates, it can ensure that the product rotates stably with the product and will not fall out between the left and right locating components, thus ensuring the quality of laser cleaning.

[0042] In another embodiment, the right side of the left positioning member 4 is provided with multiple mounting holes, and the left end of each positioning pin is installed in one of the mounting holes; the number of mounting holes is greater than the number of limiting pins. Multiple mounting holes are provided, and these holes can be screw holes. Since the drain pipes have different models, such as 110, 90, 70, and 50 pipes (the numbers represent the pipe diameter in mm), the mounting holes of the positioning pins can be adjusted to different positions depending on the product, thus making it suitable for products of different sizes and improving its applicability.

[0043] See Figure 4-6 As shown, the right positioning component 5 includes a slider 17, a conical top block 18, and a right fixing seat 19. The top of the right fixing seat 19 is provided with a first transverse slide rail 20. The right driving component 7 is mounted on the right fixing seat 19. The bottom of the slider 17 is slidably disposed on the first transverse slide rail 20. The right driving component 7 drives the slider 17 to move on the first transverse slide rail 20. The right end of the conical top block 18 is rotatably connected to the left side of the slider 17.

[0044] The right-side fixed base can be directly mounted on the frame. The right-side drive component is a cylinder, an electric cylinder, or a combination of a motor and a lead screw. In this embodiment, the right-side drive component is a cylinder, which is installed inside the right-side fixed base. The top of the right-side fixed base has a transverse through groove parallel to the first transverse slide rail. The bottom center of the slider is inserted into the transverse through groove and connected to the output shaft of the cylinder. By extending and retracting the cylinder output shaft, the slider is driven to move laterally along the first transverse slide rail, causing the conical top block to move closer to or further away from the left-side positioning component.

[0045] The conical top block is positioned directly opposite the left-side positioning member, and the axis of the rotatable connection between the left-side positioning member and the frame is coaxial with the conical top block. The left diameter of the conical top block is smaller than the right diameter; therefore, the left end of the conical top block is inserted into the right end of the product, and the right side of the product rests against the outer surface of the conical top block, thus positioning the product and preventing it from falling. This design is also suitable for products of different diameters.

[0046] See Figure 4-6 As shown, the frame 1 is also provided with a second transverse slide rail 21, the bottom of the right side fixed seat 19 is slidably disposed on the second transverse slide rail 21, and the right side fixed seat 19 is provided with a locking component 22, which locks and limits the right side fixed seat 19 to the second transverse slide rail 21.

[0047] In this embodiment, to reduce the length of the right-side fixed seat and the first transverse slide rail, a cylinder with a shorter stroke is used to reduce the cost of the right-side fixed seat and the cylinder. Therefore, in this embodiment, a second transverse slide rail is also provided, and the locking component uses a limit bolt or a ratchet locking screw, which allows adjustment of the distance between the right-side positioning component and the left-side positioning component in the initial state. For example, if the right-side drive component can only drive the conical top block to move left and right by 30cm, without the second transverse slide rail, the right-side fixed seat would be directly fixed to the frame, and it could only be used for limiting products of a certain length, such as 100cm-130cm. Products shorter than 100cm or longer than 130cm could not be limited. Therefore, a second transverse slide rail is provided, and the right-side fixed seat is locked onto the second transverse slide rail by the locking component. If the product length is less than 100cm or greater than 130cm, loosen the locking parts, then slide the right-side fixing seat, adjust the distance between the right-side positioning part and the left-side positioning part, and then tighten the locking parts to fix the right-side fixing seat. This can be adjusted according to different product lengths, thereby increasing the applicability and reducing cleaning costs.

[0048] See Figure 1 , 7 As shown, the drive mechanism 10 includes a bracket 23, a transverse drive mechanism 24, a vertical drive mechanism 25, and a longitudinal drive mechanism 26 mounted on the bracket 23. The bracket 23 is mounted on the frame 1, and a base frame 27 slides laterally on the bracket 23. The transverse drive mechanism 24 is mounted on the bracket 23 and drives the base frame 27 to move laterally on the bracket 23. The longitudinal drive mechanism 26 is mounted on the base frame 27, and a vertical frame 28 slides longitudinally on the base frame 27. The longitudinal drive mechanism 26 drives the vertical frame 28 to move longitudinally on the base frame 27.

[0049] The vertical drive mechanism 25 is mounted on the stand 28, and the laser cleaning head 9 is vertically slidably mounted on the stand 28. The vertical drive mechanism 25 drives the laser cleaning head 9 to move vertically on the stand 28.

[0050] A mounting bracket 29 is slidably mounted on the upright frame 28, and the laser cleaning head 9 is mounted on the mounting bracket 29. The vertical drive mechanism 25 drives the mounting bracket 29 to move vertically along the upright frame 28.

[0051] The lateral, vertical, and longitudinal drive mechanisms can all employ a combination of a motor and a lead screw, or a combination of a motor, a belt, and pulleys, or a cylinder. In this embodiment, all three mechanisms use a combination of a motor and a lead screw. For example, the lateral drive mechanism includes a lateral motor and a lateral lead screw, both mounted on a support. The lateral motor drives the lead screw to rotate, and the middle of the lead screw is screwed to the base frame. The rotation of the lead screw causes the base frame to move laterally (left-right) along the support. The longitudinal drive mechanism includes a longitudinal motor and a longitudinal lead screw, both mounted on the base frame. The longitudinal motor drives the lead screw to rotate, and the middle of the lead screw is screwed to the upright frame. When the lead screw rotates, it causes the upright frame to move longitudinally (back-forward). The vertical drive mechanism includes a vertical motor and a vertical lead screw. The vertical motor and the vertical lead screw are mounted on the upright frame. The vertical motor drives the vertical lead screw to rotate. The middle part of the vertical lead screw is screwed to the mounting frame. When the vertical lead screw rotates, it drives the mounting frame and the laser cleaning head to move vertically (up and down).

[0052] In the description of this utility model, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the 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, and therefore should not be construed as a limitation of the invention. In the description of the invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0053] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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. For instance, the two components can be mechanically connected by contact or abutting; they can also be directly hooked or connected by an intermediate medium; or they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

Claims

1. A laser cleaning device for weld seams in downpipes, characterized in that: Includes a frame, a workpiece clamping mechanism mounted on the frame, and a laser cleaning mechanism; The workpiece clamping mechanism includes a left positioning component, a right positioning component, a left driving component, and a right driving component. The left positioning component is rotatably mounted on the frame, and the left driving component is configured to drive the left positioning component to rotate. The right positioning component is laterally moved to the right of the left positioning component, and the right driving component is configured to drive the right positioning component to move closer to or away from the left positioning component. There is a clamping space between the left and right positioning components. The laser cleaning mechanism is located on the rear side of the clamping space. The laser cleaning mechanism includes a laser cleaning head and a driving mechanism. The driving mechanism drives the laser cleaning head to move laterally, vertically, and longitudinally.

2. The laser cleaning device for downpipe welds according to claim 1, characterized in that: The frame is provided with a left fixed seat, the left side of the left positioning component is rotatably connected to the left fixed seat, and the left driving component is installed on the left fixed seat.

3. The laser cleaning device for downpipe welds according to claim 1, characterized in that: Multiple positioning pins are provided on the right side of the left positioning component.

4. The laser cleaning device for downpipe welds according to claim 3, characterized in that: The right side of the left positioning member is provided with a plurality of mounting holes, and the left end of each positioning pin is respectively installed in one of the mounting holes; And / or, the number of mounting holes is greater than the number of limiting pins.

5. The laser cleaning device for downpipe welds according to claim 1, characterized in that: The right-side positioning component includes a slider, a conical top block, and a right-side fixed base. The top of the right-side fixed base is provided with a first transverse slide rail. The right-side driving component is mounted on the right-side fixed base. The bottom of the slider is slidably disposed on the first transverse slide rail. The right-side driving component drives the slider to move on the first transverse slide rail. The right end of the conical top block is rotatably connected to the left side of the slider.

6. The laser cleaning device for downpipe welds according to claim 5, characterized in that: The frame is also provided with a second transverse slide rail, the bottom of the right-side fixed seat is slidably disposed on the second transverse slide rail, and the right-side fixed seat is provided with a locking component, which locks and limits the right-side fixed seat to the second transverse slide rail.

7. The laser cleaning device for downpipe welds according to claim 5, characterized in that: The conical top block is positioned directly opposite the left-side positioning member, and the axis of the left-side positioning member at the rotatable connection with the frame is coaxial with the conical top block.

8. The laser cleaning device for downpipe welds according to claim 1, characterized in that: The drive mechanism includes a bracket, a horizontal drive mechanism, a vertical drive mechanism, and a longitudinal drive mechanism mounted on the bracket. The bracket is mounted on the frame, and a base frame slides horizontally on the bracket. The horizontal drive mechanism is mounted on the bracket and drives the base frame to move horizontally on the bracket. The longitudinal drive mechanism is mounted on the base frame, and a vertical frame slides longitudinally on the base frame. The longitudinal drive mechanism drives the vertical frame to move longitudinally on the base frame. The vertical drive mechanism is mounted on the stand, and the laser cleaning head is vertically slidably mounted on the stand. The vertical drive mechanism drives the laser cleaning head to move vertically on the stand.

9. The laser cleaning device for downpipe welds according to claim 8, characterized in that: A mounting bracket is slidably mounted on the upright frame, the laser cleaning head is mounted on the mounting bracket, and the vertical drive mechanism drives the mounting bracket to move vertically along the upright frame.

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