Integrated focusing and moving device applied to miniaturized laser cleaning head

Abstract

The utility model discloses an integrated fixed focus moving device applied to miniaturized laser cleaning head, including fixed focus main part, moving mechanism and connecting frock, the fixed focus main part is detachably connected in the laser emission side of laser cleaning head through connecting frock, the surface of the side of fixed focus main part close to the workpiece to be cleaned is provided with moving mechanism, and the moving side of moving mechanism is contacted with the surface of the workpiece to be cleaned to make the distance between the lens of laser cleaning head and the workpiece to be cleaned remain unchanged. Advantages are: through the cooperation of fixed focus main part and moving mechanism, realize the fixed focus cleaning of laser cleaning head in the moving process, and the stability of cleaning effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of laser cleaning technology, and in particular to an integrated fixed-focus moving device applied to a miniaturized laser cleaning head. Background Technology

[0002] Laser cleaning equipment, as a highly efficient and environmentally friendly cleaning tool, has been widely used in various industrial cleaning fields. However, traditional laser cleaning heads are often bulky, significantly limiting their application in confined or complex working environments. Existing small laser cleaning heads, due to space constraints during movement, limit the operator's line of sight and operating space, making it difficult to maintain a fixed focal length during operation. This often results in inconsistent cleaning effects (the workpiece can be cleaned within the depth of focus, but the surface cannot be completely cleaned after defocusing). Conventional fixed-focus fixtures are typically independent of the laser cleaning head, increasing its weight and installation complexity, and causing inconvenience for operators during long-term use. Therefore, developing a device that allows a miniaturized laser cleaning head to maintain focus during movement is particularly important. Utility Model Content

[0003] The purpose of this invention is to provide an integrated fixed-focus moving device for use in miniaturized laser cleaning heads, thereby solving the aforementioned problems existing in the prior art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] An integrated fixed-focus moving device for use in miniaturized laser cleaning heads includes a fixed-focus body, a moving mechanism, and a connecting fixture; the fixed-focus body is detachably connected to the laser emission side of the laser cleaning head via the connecting fixture; the moving mechanism is provided on the side surface of the fixed-focus body near the workpiece to be cleaned, and the moving side of the moving mechanism contacts the surface of the workpiece to be cleaned so that the distance between the lens of the laser cleaning head and the workpiece to be cleaned remains unchanged.

[0006] Preferably, the moving mechanism includes at least three rolling wheels, which are spaced apart and staggered on the surface of the fixed-focus body near the workpiece to be cleaned, and the rolling surface of the rolling wheels is in contact with the surface of the workpiece to be cleaned.

[0007] Preferably, the rolling wheel includes a wheel seat and a ball bearing. The wheel seat is fixed to the surface of the fixed-focus body near the workpiece to be cleaned. Part of the ball bearing extends into the wheel seat and is in contact with the wheel seat. The other part of the ball bearing protrudes from the wheel seat and is in contact with the surface of the workpiece to be cleaned.

[0008] Preferably, the connecting fixture includes a fixture body and fasteners, and the fixture body has multiple elongated holes penetrating its opposite sides at both ends.

[0009] Multiple sets of first connecting holes are evenly spaced along the vertical direction on one side of the outer wall of the fixed focus body. Each set of first connecting holes includes multiple first connecting holes evenly spaced along the horizontal direction. Fasteners pass through the elongated hole and the corresponding first connecting hole at one end of the tooling body in sequence to fix the fixed focus body to the tooling body.

[0010] Multiple sets of second connection holes are evenly spaced along the vertical direction on one side of the outer wall of the laser cleaning head. Each set of second connection holes includes multiple second connection holes evenly spaced along the horizontal direction. Fasteners pass through the elongated hole and the corresponding second connection hole at the other end of the fixture body in sequence to fix the laser cleaning head to the fixture body.

[0011] Preferably, the fixed-focus body is further provided with a lens protection device for protecting the laser cleaning head lens, and the lens protection device is integrated with the fixed-focus moving device.

[0012] Preferably, the lens protection device includes a splash isolation plate, which is vertically disposed on the side of the fixed-focus body away from the laser cleaning head. The upper end of the splash isolation plate is located above the fixed-focus body and extends into the laser emission path of the laser cleaning head. A narrow slit is provided on the splash isolation plate facing the laser emission path to allow the laser to pass through. The moving mechanism is disposed on the side of the splash isolation plate away from the laser cleaning head, avoiding the narrow slit.

[0013] The beneficial effects of this utility model are: 1. By cooperating with the fixed-focus body and the moving mechanism, the laser cleaning head achieves fixed-focus cleaning during the moving process, improving the stability of the cleaning effect. 2. The fixed-focus moving device and the lens protection device are integrated and detachably connected to the laser cleaning head, making the overall cleaning equipment simpler and lighter, simplifying the actual installation process, improving the flexibility and practicality of the laser cleaning head, and making it more convenient for operators to use handheld for long periods of time. Attached Figure Description

[0014] Figure 1 This is a structural diagram of the fixed-focus moving device in an embodiment of this utility model;

[0015] Figure 2 This is a side view of the fixed-focus moving device in an embodiment of this utility model;

[0016] Figure 3 This is a cross-sectional view of the fixed-focus moving device in an embodiment of this utility model;

[0017] Figure 4This is a schematic diagram of the connecting tooling in an embodiment of this utility model;

[0018] Figure 5 This is a schematic diagram showing the connection between the fixed-focus moving device and the laser cleaning head in an embodiment of this utility model;

[0019] Figure 6 This is a schematic diagram showing the positions of the fixed-focus moving device and the workpiece to be cleaned in an embodiment of this utility model.

[0020] In the diagram: 1. Fixed-focus body; 2. Laser cleaning head; 3. Wheel seat; 4. Ball bearing; 5. Tooling body; 6. Fastener; 7. Long slot; 8. First connecting hole; 9. Second connecting hole; 10. Splash isolation plate; 11. Narrow slit; 12. Air duct; 13. Lens protection power mechanism; 14. Dust collection port; 15. Smoke and dust diversion plate; 16. Workpiece to be cleaned; 17. Potential dust accumulation area; 18. Potential dust diffusion area; 19. Laser cleaning action area. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0022] like Figures 1 to 6 As shown, in this embodiment, an integrated fixed-focus moving device for use in a miniaturized laser cleaning head is provided, including a fixed-focus body 1, a moving mechanism and a connecting fixture; the fixed-focus body 1 is detachably connected to the laser emission side of the laser cleaning head 2 via the connecting fixture; the fixed-focus body 1 is provided with a moving mechanism on the side surface of the fixed-focus body 1 near the workpiece 16 to be cleaned, and the moving side of the moving mechanism contacts the surface of the workpiece 16 to be cleaned so that the distance between the lens of the laser cleaning head 2 and the workpiece 16 to be cleaned remains unchanged.

[0023] The fixed-focus body 1 is mainly used to maintain the distance between the emitting end of the laser cleaning head 2 and the surface of the workpiece 16 to be cleaned (i.e., the focal length of the laser cleaning head 2, see Appendix). Figure 1 The lateral distance d) shown remains unchanged. The fixed-focus body 1 is connected to the laser cleaning head 2 through a connecting fixture. By fixing the fixed-focus body 1 to the laser cleaning head 2, during use, it is only necessary to place the side of the fixed-focus body 1 away from the laser cleaning head 2 against the surface of the workpiece 16 to be cleaned, so as to ensure that the distance between the lens of the laser cleaning head 2 and the workpiece 16 to be cleaned is the focal length.

[0024] In order to enable the fixed-focus body 1 to be compatible with different laser cleaning heads 2, and to enable laser cleaning heads 2 with different focal lengths to clean the workpiece 16 to be cleaned, the connecting fixture is designed so that the distance between the fixed-focus body 1 and the laser cleaning head 2 can be changed according to the actual situation.

[0025] like Figure 4 and Figure 5 As shown, the connecting fixture includes a fixture body 5 and fasteners 6. The fixture body 5 has multiple elongated holes 7 penetrating its opposite sides at both ends. On one side of the outer wall of the focusing body 1, multiple sets of first connecting holes are evenly spaced along the vertical direction. Each first connecting hole set includes multiple first connecting holes 8 evenly spaced along the horizontal direction. The fasteners 6 pass through the elongated holes 7 and corresponding first connecting holes 8 at one end of the fixture body 5 to fix the focusing body 1 to the fixture body 5. On one side of the outer wall of the laser cleaning head 2, multiple sets of second connecting holes are evenly spaced along the vertical direction. Each second connecting hole set includes multiple second connecting holes 9 evenly spaced along the horizontal direction. The fasteners 6 pass through the elongated holes 7 and corresponding second connecting holes 9 at the other end of the fixture body 5 to fix the laser cleaning head 2 to the fixture body 5.

[0026] During installation, the fixture body 5 is placed tightly against the outer wall of the laser cleaning head 2 and the fixed-focus body 1. The distance and vertical height between the laser cleaning head 2 and the fixed-focus body 1 are adjusted according to actual needs, aligning the elongated hole 7 with the appropriate first connecting hole 8 and second connecting hole 9. Fasteners 6 are then passed through the connecting holes and elongated holes 7 to securely connect the laser cleaning head 2 and the fixed-focus body 1 to the fixture body 5, thus achieving the connection between them. When it is necessary to adjust the installation distance and / or installation height between the laser cleaning head 2 and the fixed-focus body 1, the fasteners 6 are removed, the elongated hole 7 is re-aligned with the appropriate connecting hole, and then fastened again using the fasteners 6. Specifically, the number of elongated holes 7, the first connecting hole group, the first connecting hole 8, the second connecting hole group, and the second connecting hole 9 can be selected according to actual needs to better meet specific requirements.

[0027] In order to reduce the friction between the fixed-focus body 1 and the surface of the workpiece 16 to be cleaned, and to avoid damage to the surface of the workpiece 16 to be cleaned by the fixed-focus body 1, and in order to ensure that the laser cleaning head 2 always maintains a certain distance from the workpiece 16 to be cleaned during the cleaning process to achieve the best cleaning effect, a moving mechanism is set on the side of the fixed-focus body 1 away from the laser cleaning head 2.

[0028] like Figure 2As shown, the moving mechanism includes three rolling wheels, which are spaced and staggered on the surface of the focusing body 1 near the workpiece 16 to be cleaned, and the rolling surfaces of the rolling wheels are in contact with the surface of the workpiece 16. Each rolling wheel includes a wheel seat 3 and ball bearings 4. The wheel seat 3 is fixed to the surface of the focusing body 1 near the workpiece 16 to be cleaned. Part of the ball bearing 4 extends into the wheel seat 3 and is in contact with it, while the other part of the ball bearing 4 protrudes from the wheel seat 3 and is in contact with the surface of the workpiece 16 to be cleaned.

[0029] By having the ball bearing 4 contact the surface of the workpiece 16 to be cleaned, the contact area between the fixed-focus body 1 and the surface of the workpiece 16 to be cleaned is reduced, ensuring a smoother cleaning process and ensuring that the focal length of the laser cleaning head 2 remains unchanged during the cleaning process, thus achieving a stable cleaning effect.

[0030] like Figures 1 to 3 As shown, in this embodiment, the fixed-focus body 1 is also provided with a lens protection device for protecting the lens of the laser cleaning head 2. The lens protection device is integrated with the fixed-focus moving device. The lens protection device includes a splash isolation plate 10, which is vertically disposed on the side of the fixed-focus body 1 away from the laser cleaning head 2. The upper end of the splash isolation plate 10 is located above the fixed-focus body 1 and extends into the laser emission path of the laser cleaning head 2. A narrow slit 11 for the laser to pass through is provided on the position of the splash isolation plate 10 facing the laser emission path. The moving mechanism is disposed on the side of the splash isolation plate 10 away from the laser cleaning head 2, avoiding the narrow slit 11. By integrating the splash isolation plate 10 onto the fixed-focus body 1, the laser beam path of the laser cleaning head 2 is not affected, and a large amount of smoke and dust generated during the cleaning process can be blocked to prevent it from contaminating the lens. At the same time, the splash isolation plate 10 provides an installation position for the moving mechanism, thereby ensuring that the distance between the laser cleaning head 2 and the workpiece 16 to be cleaned remains constant during the cleaning process, achieving a stable cleaning effect.

[0031] In this embodiment, the lens protection device further includes a lens protection power mechanism 13 and an air duct 12. The fixed-focus body 1 has an air duct 12 extending through its upper and lower ends, and the lens protection power mechanism 13 is housed within the air duct 12. The lens protection device also includes a dust diversion plate 15 located between the splash isolation plate 10 and the laser cleaning head 2. The upper end of the dust diversion plate 15 is fixedly connected to the splash isolation plate 10, and the lower end of the dust diversion plate 15 is inclined downwards and extends to the upper end of the air duct 12. The fixed-focus body 1 has two parallel air ducts 12, each containing a lens protection power mechanism 13. The lower end of the fixed-focus body 1 has a dust collection port 14 communicating with the air duct 12, and at least one air duct 12 is connected to the dust collection port 14. The lens protection device also includes a smoke purifier, and the dust collection port 14 is connected to the smoke purifier via a dust collection pipe.

[0032] When the laser cleaning head 2 emits laser light to clean the workpiece 16, it generates a large amount of smoke and dust. This smoke and dust not only pollutes the environment and the workpiece 16, but also contaminates the lenses of the laser cleaning head 2, thus affecting its cleaning effect. Therefore, in actual use, two lens protection channels can be set up simultaneously according to actual needs, or one of the lens protection channels can be used in conjunction with the dust collection port 14 and the fume purifier. For routine paint and rust removal of the workpiece, a combination of lens protection channel and dust collection fume purification can be used. For situations where the workpiece is highly viscous and has high splash kinetic energy after degreasing and cleaning, two lens protection channels can be used simultaneously to enhance the lens protection effect.

[0033] A splash isolation plate 10 is provided between the fixed-focus body 1 and the laser cleaning head 2. The splash isolation plate 10 is located between the workpiece 16 to be cleaned and the laser cleaning head 2. The splash isolation plate 10 is provided with a narrow elliptical slit 11, so as to ensure that the laser emitted by the laser cleaning head 2 can pass through the narrow slit 11 and reach the cleaning position of the workpiece 16 to be cleaned (i.e., Figure 6 In the laser cleaning area 19), when the laser cleaning head 2 cleans the workpiece 16, most of the generated fumes can be blocked by the spatter isolation plate 10. Figure 6 In the potential dust accumulation area 17), a small amount of dust may enter between the splash isolation plate 10 and the laser cleaning head 2 through the narrow slit 11. Figure 6The potential diffusion area of ​​smoke and dust is 18). To prevent a small amount of smoke and dust from entering the space between the splash isolation plate 10 and the laser cleaning head 2 through the narrow slit 11 and contaminating the lens, the fixed-focus body 1 is equipped with an air duct 12 and a lens protection power mechanism 13. The lens protection power mechanism 13 draws the smoke and dust into the air duct 12 and discharges it, thus preventing the smoke and dust from spreading between the splash isolation plate 10 and the laser cleaning head 2. The smoke and dust blocked outside settles towards the dust collection port 14 under its own gravity, is collected by the huge suction generated by the smoke purifier, and is discharged after filtration, reducing environmental pollution.

[0034] In this embodiment, in order to ensure that the dust entering between the splash isolation plate 10 and the laser cleaning head 2 through the narrow slit 11 can smoothly enter the air duct 12, a dust diversion plate 15 is provided between the splash isolation plate 10 and the laser cleaning head 2. The dust diversion plate 15 is inclined and its lower end extends to the upper end of the air duct 12. When the lens protection power mechanism 13 is working, the wind force is concentrated to cut off the movement of dust and directly suck the dust into the air duct 12, so as to prevent it from moving to the lens and contaminating the lens.

[0035] In this embodiment, by integrating the fixed-focus moving device and the lens protection device into one unit, the integration of the equipment is improved, the size of the device is reduced, and the overall equipment is lighter and easier to operate. This provides more auxiliary functions for the operation of the laser cleaning head 2 and improves the laser cleaning effect.

[0036] By adopting the above-disclosed technical solution of this utility model, the following beneficial effects are obtained:

[0037] This invention provides an integrated fixed-focus moving device for use on miniaturized laser cleaning heads. Through the cooperation of the fixed-focus body and the moving mechanism, the laser cleaning head achieves fixed-focus cleaning during movement, improving the stability of the cleaning effect. The fixed-focus moving device is integrated with the lens protection device and can be detachably connected to the laser cleaning head, making the overall cleaning equipment simpler and lighter, simplifying the actual installation process, improving the flexibility and practicality of the laser cleaning head, and making it easier for operators to use it handheld for extended periods.

[0038] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An integrated fixed-focus moving device for use in miniaturized laser cleaning heads, characterized in that: It includes a fixed-focus body, a moving mechanism, and a connecting fixture; the fixed-focus body is detachably connected to the laser emission side of the laser cleaning head via the connecting fixture; the moving mechanism is provided on the side surface of the fixed-focus body near the workpiece to be cleaned, and the moving side of the moving mechanism contacts the surface of the workpiece to be cleaned so that the distance between the lens of the laser cleaning head and the workpiece to be cleaned remains unchanged.

2. The integrated fixed-focus moving device applied to a miniaturized laser cleaning head according to claim 1, characterized in that: The moving mechanism includes at least three rolling wheels, which are arranged alternately on the side surface of the fixed-focus body near the workpiece to be cleaned, and the rolling surface of the rolling wheels is in contact with the surface of the workpiece to be cleaned.

3. The integrated fixed-focus moving device applied to a miniaturized laser cleaning head according to claim 2, characterized in that: The rolling wheel includes a wheel seat and balls. The wheel seat is fixed to the surface of the fixed-focus body near the workpiece to be cleaned. Part of the balls extend into the wheel seat and are in contact with the wheel seat. The other part of the balls protrudes from the wheel seat and is in contact with the surface of the workpiece to be cleaned.

4. The integrated fixed-focus moving device for use in a miniaturized laser cleaning head according to claim 3, characterized in that: The connecting fixture includes a fixture body and fasteners. The fixture body has multiple elongated holes penetrating its opposite sides at both ends. Multiple sets of first connecting holes are evenly spaced along the vertical direction on one side of the outer wall of the fixed focus body. Each set of first connecting holes includes multiple first connecting holes evenly spaced along the horizontal direction. Fasteners pass through the elongated hole and the corresponding first connecting hole at one end of the tooling body in sequence to fix the fixed focus body to the tooling body. Multiple sets of second connection holes are evenly spaced along the vertical direction on one side of the outer wall of the laser cleaning head. Each set of second connection holes includes multiple second connection holes evenly spaced along the horizontal direction. Fasteners pass through the elongated hole and the corresponding second connection hole at the other end of the fixture body in sequence to fix the laser cleaning head to the fixture body.

5. The integrated fixed-focus moving device for use in a miniaturized laser cleaning head according to any one of claims 1 to 4, characterized in that: The fixed-focus body is also equipped with a lens protection device for protecting the laser cleaning head lens, and the lens protection device is integrated with the fixed-focus moving device.

6. The integrated fixed-focus moving device for use in a miniaturized laser cleaning head according to claim 5, characterized in that: The lens protection device includes a splash isolation plate, which is vertically disposed on the side of the fixed-focus body away from the laser cleaning head. The upper end of the splash isolation plate is located above the fixed-focus body and extends into the laser emission path of the laser cleaning head. A narrow slit is provided on the splash isolation plate facing the laser emission path to allow the laser to pass through. The moving mechanism is disposed on the side of the splash isolation plate away from the laser cleaning head, avoiding the narrow slit.

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