A laser scale cleaning device

Abstract

This application relates to the field of metal surface treatment technology, and in particular to a laser oxide scale removal device, comprising a laser removal assembly and a support assembly. The laser removal assembly includes a cleaning robotic arm and a laser head, with the laser head mounted at the end of the cleaning robotic arm. The support assembly includes a support frame and two rotating rollers, which are inclined and located on the same horizontal plane. Both rotating rollers are rotatably connected to the support frame, and several support rings are equidistantly arranged on the two rotating rollers along their length. A pin is placed above the two rotating rollers, supported by the support rings. The laser head is moved by the cleaning robotic arm, allowing the laser head to perform laser polishing on the pin surface, chamfers, edges, and holes, avoiding mechanical impact on the pin substrate. This completely preserves the original dimensional accuracy and surface roughness of the pin, without affecting its performance or appearance.

Description

Technical Field

[0001] This application relates to the field of metal surface treatment technology, and in particular to a laser device for removing oxide scale. Background Technology

[0002] A pin is a standardized mechanical connecting part, mainly used in hinged structures to achieve relative rotation or oscillation between two components, while also serving positioning and load-bearing functions. It is widely used in engineering machinery, agricultural machinery, automobiles, and ships. Laser oxide scale removal of pins aims to remove the surface oxide layer and improve surface quality, thereby enhancing the pin's adaptability to subsequent processing, its performance, and its service life.

[0003] For related technologies, please refer to Chinese invention patent with announcement number CN114749400B, which discloses a forging oxide scale cleaning device, including a fixed part and a rotating part arranged around the fixed part; the front end of the fixed part is provided with a striking device for striking oxide scale, and the fixed part is also provided with a high-pressure air blowing oxide scale device; the front end of the rotating part is provided with a scraping device for rotating around the fixed part to scrape off the oxide scale.

[0004] Regarding the aforementioned technologies, impact cleaning relies on the impact of high-speed abrasive particles or steel shot, or the hammering of a hammer, to remove oxide scale. The impact force can cause plastic deformation on the pin surface, which may result in slight deviations in the pin diameter, increased surface roughness, dust, noise, etc. Summary of the Invention

[0005] In order to avoid mechanical impact on the pin base and to fully preserve the original dimensional accuracy and surface roughness of the pin, this application provides a laser oxide scale removal device.

[0006] This application provides a laser oxide scale removal device, which adopts the following technical solution: A laser oxide scale removal device includes a laser removal assembly and a support assembly. The laser removal assembly includes a cleaning robotic arm and a laser head, with the laser head mounted at the end of the cleaning robotic arm. The support assembly includes a support frame and two rotating rollers. The two rotating rollers are inclined and located on the same horizontal plane, and both rotating rollers are rotatably connected to the support frame. A drive motor is mounted on the support frame, and the output shaft of the drive motor is coaxially and fixedly connected to one of the rotating rollers. Several support rings are equidistantly spaced along the length of the two rotating rollers. An end-face positioning assembly is mounted on the support frame for supporting and positioning the end of a pin.

[0007] Furthermore, the end face positioning assembly includes a mounting block, a protective cover, and positioning rollers. The mounting block is fixedly installed on the support frame near the lower side of the rotating roller. The protective cover is installed on the mounting block near the rotating roller. A mounting seat is provided inside the protective cover. The positioning rollers are installed on the mounting seat and rotatably connected to the mounting seat.

[0008] Furthermore, the end face positioning assembly also includes a movable slide rail, a movable slider, and a positioning block. The movable slide rail is mounted on the support frame along the length of the rotating roller. The movable slider is mounted on the movable slide rail and can move along the movable slide rail. The positioning block is mounted on the side of the movable slider near the positioning roller.

[0009] Furthermore, a detection switch is installed on the support frame, the detection switch is located between the two rotating rollers, and the detection switch is located on the side of the positioning roller closer to the rotating roller.

[0010] Furthermore, two support components are provided, and a temporary storage station is provided on the same side of the two support components. The temporary storage station includes a fixed frame and several support plates. The several support plates are equidistantly spaced along the length direction of the fixed frame, and each of the several support plates is provided with a V-shaped support groove.

[0011] Furthermore, the laser oxide scale removal device also includes a handling robotic arm and several loading racks, the loading racks being used to place the pins to be processed; the end of the handling robotic arm is provided with a clamp for gripping the pins, the clamp is provided with an electromagnet, the electromagnet is connected in parallel to an external control power supply and is used to achieve adsorption and gripping of the workpiece.

[0012] Furthermore, the laser oxide scale removal device also includes a laser marking component, which includes a mounting frame, a movable frame, and a laser marking machine. The movable frame is mounted on the mounting frame via a movable guide rail, and two support rollers are provided on the movable frame. A lifting guide rail is vertically mounted on the mounting frame, and the laser marking machine is mounted on the lifting guide rail and can move along the lifting guide rail.

[0013] Furthermore, the mounting frame is provided with a connecting frame, and a working electric cylinder located above the support roller is mounted on the connecting frame. The piston rod end of the working electric cylinder is provided with a fixing component for fixing the pin.

[0014] In summary, this application includes at least one of the following beneficial technical effects: 1. Place the pin on top of two rotating rollers, with the support ring supporting the pin. Move the laser head by the cleaning robot arm to laser polish the pin surface, chamfer, edge, and holes, avoiding mechanical impact on the pin base. This completely preserves the original dimensional accuracy and surface roughness of the pin, without affecting its performance and appearance. 2. The pin is positioned by the end face positioning component. The pin is then moved to the top of the rotating drum by the transport robot arm. The moving slider is activated to move along the moving slide rail, pushing the pin to move on the rotating drum. Due to the tilt setting of the rotating drum, one end of the pin abuts against the positioning roller under the action of gravity, which improves the stability of the pin in the oxide scale removal process. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a laser oxide removal device provided by the present invention; Figure 2 This is a schematic diagram illustrating the structure of the laser removal component in this invention; Figure 3 yes Figure 2 An enlarged schematic diagram of part A in the middle; Figure 4 This is a schematic diagram illustrating the structure of the handling robotic arm in this invention; Figure 5 This is a schematic diagram illustrating the structure of the temporary storage station in this invention; Figure 6 This is a schematic diagram illustrating the structure of the laser marking component in this invention.

[0016] Explanation of reference numerals in the attached drawings: 1. Laser cleaning assembly; 11. Cleaning robotic arm; 12. Laser head; 2. Support assembly; 21. Support frame; 22. Rotating roller; 23. Support ring; 24. Drive motor; 3. End face positioning assembly; 31. Mounting block; 32. Protective cover; 33. Positioning roller; 34. Moving slide rail; 35. Moving slider; 36. Positioning block; 37. Detection switch; 4. Loading rack; 5. Laser marking assembly; 51. Mounting frame; 52. Moving frame; 53. Laser marking machine; 54. Moving guide rail; 55. Support roller; 56. Lifting guide rail; 6. Connecting frame; 61. Working electric cylinder; 62. Fixture; 7. Temporary storage station; 71. Fixed frame; 72. Support plate; 8. Handling robotic arm; 81. Fixture. Detailed Implementation

[0017] The present application will be further described in detail below with reference to all the accompanying drawings.

[0018] Example Reference Figures 1-6A laser oxide scale removal device includes a laser removal component 1 and a support component 2. The laser removal component 1 includes a cleaning robotic arm 11 and a laser head 12, which is mounted at the end of the cleaning robotic arm 11. The laser head 12 is a JPT pulsed fiber laser, employing a power amplifier with a master oscillator. The master oscillator uses a semiconductor laser as a seed source, and the power amplifier is implemented through a traveling-wave fiber amplifier. The laser head 12 can perform laser polishing on the surface, chamfers, edges, and channels of pins, avoiding mechanical impact on the pin substrate. It completely preserves the original dimensional accuracy and surface roughness of the pin, without affecting its performance or appearance. Specific parameters of the laser head are shown in Table 1.

[0019] Table 1 Specific parameters of the laser head

[0020] The support assembly 2 includes a support frame 21 and two rotating rollers 22. The two rotating rollers 22 are located on the same horizontal plane and are rotatably connected to the support frame 21. The two rotating rollers 22 are inclined, and a number of support rings 23 are equidistantly arranged on the two rotating rollers 22 along their length direction. A drive motor 24 for driving one of the rotating rollers 22 is mounted on the support frame 21.

[0021] The support frame 21 is equipped with an end face positioning assembly 3, which includes a mounting block 31, a protective cover 32, and a positioning roller 33. The mounting block 31 is fixedly installed on the support frame 21 near the lower side of the rotating roller 22. The protective cover 32 is installed on the mounting block 31 near the rotating roller 22, and a mounting seat is installed inside the protective cover 32. The positioning roller 33 is installed on the mounting seat and rotatably connected to the mounting seat. The end face positioning assembly 3 also includes a sliding rail 34, a sliding slider 35, and a positioning block 36. The sliding rail 34 is installed on the support frame 21 along the length of the rotating roller 22. The sliding slider 35 is installed on the sliding rail 34 and can move along the sliding rail 34. The positioning block 36 is installed on the sliding slider 35 near the positioning roller 33. A detection switch 37 is installed on the support frame 21, located between the two rotating rollers 22, and the detection switch 37 is located on the positioning roller 33 near the rotating roller 22.

[0022] In use, the pin is placed above the two rotating rollers 22, and the support ring 23 supports the pin. The pin is located between the positioning block 36 and the positioning roller 33. The moving slider 35 moves along the moving slide rail 34. The positioning block 36 contacts the end of the pin and pushes the pin towards the positioning roller 33, so that the other end of the pin contacts the positioning roller 33. Since the rotating rollers 22 are inclined, under the action of gravity, one end of the pin abuts against the positioning roller 33, completing the positioning of the pin. Then, the moving slide rail 34 is activated, causing the moving slider 35 to move away from the pin, improving the stability of the pin during the oxide scale removal process. During the contact between the pin and the positioning roller 33, the end of the pin will touch the detection switch 37 to detect whether the pin has been positioned.

[0023] Among them, there are two support components 2. On the same side of the support components 2, there is a temporary storage station 7. The temporary storage station 7 includes a fixed frame 71 and several support plates 72. The several support plates 72 are equidistantly spaced along the length direction of the fixed frame 71. Each of the several support plates 72 has a V-shaped support groove.

[0024] Four loading racks 4 are installed on the side of the temporary storage station 7 away from the support component 2. A handling robot arm 8 is installed in the middle of the four loading racks 4. The loading racks 4 are equipped with RGV trolleys, which place the pins on the loading racks 4. The end of the handling robot arm 8 is equipped with a clamp 81 for gripping the pins. The clamp 81 is equipped with an electromagnet, which is connected in parallel to an external control power supply and is used to achieve workpiece adsorption and gripping. The electromagnet has the function of demagnetizing the workpiece. The handling robot arm 8 places the pins on the temporary storage station 7, and the handling robot arm 8 realizes the loading and unloading action between the two support components 2. The handling robot performs loading and unloading on one support component 2, while the laser cleaning component 1 cleans the oxide scale on the other support component 2, realizing dual-station operation and improving efficiency.

[0025] Two laser marking components 5 are installed on the side of the handling robotic arm 8 away from the laser cleaning component. The laser marking component 5 includes a mounting frame 51, a moving frame 52, and a laser marking machine 53. The moving frame 52 is mounted on the mounting frame 51 via a moving guide rail 54. Two support rollers 55 are mounted on the moving frame 52. A lifting guide rail 56 is vertically mounted on the mounting frame 51. The laser marking machine 53 is mounted on the lifting guide rail 56 and can move along the lifting guide rail 56. A connecting frame 6 is provided on the mounting frame 51. A working electric cylinder 61 located above the support rollers 55 is mounted on the connecting frame 6. A fixing part 62 for fixing the pin is provided at the end of the piston rod of the working electric cylinder 61.

[0026] After the surface oxide scale is cleaned, the pin is transported to two support rollers 55 by a handling robot. The moving frame 52 is then moved closer to the laser marking machine 53 via the moving guide rail 54, bringing the pin end closer to the machine. The working electric cylinder 61 is activated, causing the fixing component 62 to move downwards and secure the pin on the support rollers 55. The height of the laser marking machine 53 is adjusted via the lifting guide rail 56, and the laser marking machine 53 then marks the end of the pin. The implementation principle of this invention is as follows: the pin is transported by the handling robot arm 8 and placed above two rotating rollers 22. The support ring 23 supports the pin, and the positioning rollers 33 and positioning blocks 36 are clamped at both ends of the pin. The cleaning robot arm 11 moves the laser head 12 so that the laser head 12 can perform laser polishing on the surface, chamfer, edge, and hole of the pin, avoiding mechanical impact on the pin base. It can completely preserve the original dimensional accuracy and surface roughness of the pin and does not affect the performance and appearance of the pin itself.

[0027] The aforementioned movable slide rail 34, movable guide rail 54 and lifting guide rail 56 all adopt existing linear motion modules, thereby driving the corresponding movable slider 35, movable frame 52 and laser marking machine 53 to move, and the details will not be elaborated further.

[0028] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A laser oxide scale removal device, comprising a laser removal component (1) and a support component (2), characterized in that, The laser cleaning assembly (1) includes a cleaning robotic arm (11) and a laser head (12), the laser head (12) being installed at the end of the cleaning robotic arm (11); the support assembly (2) includes a support frame (21) and two rotating rollers (22), the two rotating rollers (22) being inclined and located on the same horizontal plane, both rotating rollers (22) being rotatably connected to the support frame (21), a drive motor (24) being provided on the support frame (21), the output shaft of the drive motor (24) being coaxially fixedly connected to one of the rotating rollers (22), a plurality of support rings (23) being equidistantly spaced along the length direction on the two rotating rollers (22), and an end face positioning assembly (3) being provided on the support frame (21), the end face positioning assembly (3) being used to support and position the end of the pin shaft.

2. The laser oxide scale removal device according to claim 1, characterized in that, The end face positioning assembly (3) includes a mounting block (31), a protective cover (32), and a positioning roller (33). The mounting block (31) is fixedly installed on the support frame (21) on the lower side near the rotating roller (22). The protective cover (32) is installed on the mounting block (31) on the side near the rotating roller (22). A mounting seat is provided inside the protective cover (32). The positioning roller (33) is installed on the mounting seat and is rotatably connected to the mounting seat.

3. The laser oxide scale removal device according to claim 2, characterized in that, The end face positioning assembly (3) further includes a movable slide rail (34), a movable slider (35), and a positioning block (36). The movable slide rail (34) is mounted on the support frame (21) along the length of the rotating roller (22). The movable slider (35) is mounted on the movable slide rail (34) and can move along the movable slide rail (34). The positioning block (36) is mounted on the side of the movable slider (35) near the positioning roller (33).

4. The laser oxide scale removal device according to claim 2, characterized in that, A detection switch (37) is installed on the support frame (21). The detection switch (37) is located between the two rotating rollers (22) and is located on the side of the positioning roller (33) near the rotating roller (22).

5. The laser oxide scale removal device according to claim 1, characterized in that, There are two support components (2), and a temporary storage station (7) is provided on the same side of the two support components (2). The temporary storage station (7) includes a fixed frame (71) and several support plates (72). The several support plates (72) are equidistantly spaced along the length direction of the fixed frame (71), and each of the several support plates (72) has a V-shaped support groove.

6. The laser oxide scale removal device according to claim 1, characterized in that, The laser oxide scale removal device also includes a handling robotic arm (8) and several loading racks (4), the loading racks (4) being used to place the pins to be processed; the end of the handling robotic arm (8) is provided with a clamp (81) for gripping the pins, the clamp (81) being provided with an electromagnet, the electromagnet being connected in parallel to an external control power supply and being used to achieve adsorption and gripping of the workpiece.

7. The laser oxide scale removal device according to claim 1, characterized in that, The laser oxide scale removal device also includes a laser marking component (5), which includes a mounting frame (51), a movable frame (52), and a laser marking machine (53). The movable frame (52) is mounted on the mounting frame (51) via a movable guide rail (54). Two support rollers (55) are provided on the movable frame (52). A lifting guide rail (56) is vertically mounted on the mounting frame (51). The laser marking machine (53) is mounted on the lifting guide rail (56) and can move along the lifting guide rail (56).

8. The laser oxide scale removal device according to claim 7, characterized in that, The mounting bracket (51) is provided with a connecting bracket (6), and a working electric cylinder (61) located above the support roller (55) is installed on the connecting bracket (6). The piston rod end of the working electric cylinder (61) is provided with a fixing member (62) for fixing the pin.

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