Laser cleaning method and device for spectacle lens coating mold and cleaning head movement assembly

Abstract

The invention relates to the technical field of laser cleaning, in particular to a laser cleaning method and equipment for a spectacle lens coating mold and a cleaning head movement assembly. The laser cleaning equipment comprises a base, the base is used for supporting a workpiece body to be cleaned, the laser cleaning equipment further comprises a scraping assembly, the scraping assembly is installed on the base and comprises a scraping plate, and the scraping plate is attached to the surface of the workpiece body; an air outlet box is arranged on one side of the scraping plate, and one end of the air outlet box outputs airflow to form an air knife; a guide part is arranged on the side, away from the air outlet box, of the scraper blade. According to the laser cleaning equipment, the guiding part blows the air flow towards the air suction pipe head, the air suction pipe head sucks the air flow blown out by the guiding part, the guiding air flow with particles is formed between the guiding part and the air suction pipe head, and the guiding air flow carries a large number of particles blown by the air knife, so that the particles can be directly sucked by the air suction pipe head without being influenced by rotation of a workpiece; therefore, the recovery efficiency of the particles on the surface of the workpiece is improved.

Description

Technical Field

[0001] The invention relates to the technical field of laser cleaning, and in particular to a laser cleaning method and equipment for a coating mold of a spectacle lens, and a cleaning head motion component. Background Art

[0002] The eyeglass lens coating mold is a disc-shaped structure with a lens groove on its periphery. The lens to be processed is placed on the top of the arc-shaped mold so that the lens and the lens groove are opposite each other up and down. The lens is then coated by a coating device. After coating, the side of the mold facing the coating device needs to be cleaned. The cleaning method currently used is laser cleaning.

[0003] When cleaning the above-mentioned disc-shaped workpiece (i.e., the eyeglass lens coating mold), the workpiece itself is rotated for cleaning. For example, Chinese Patent Publication No. CN211938241U discloses a laser cleaning system, including a rotating motor, which is used to drive the workpiece to be cleaned to rotate, and a laser cleaning device is arranged above the workpiece to be cleaned, and the laser cleaning device is used to output laser to clean the cleaning position of the workpiece to be cleaned.

[0004] After laser cleaning is completed, the particles on the workpiece surface need to be recovered. However, due to the influence of the rotating workpiece, the particles are dispersed over a wide range, and it is difficult for a single suction pipe head to effectively recover the particles comprehensively. In addition, during the rotation of the workpiece, the particles will move to the dead corner of the suction pipe head, resulting in some particles being unable to be recovered. Summary of the invention

[0005] Based on the above background, the problem of the present invention is that there will be particles on the surface of the workpiece after laser beam treatment. If the particles cannot be separated from the workpiece surface in time, the particles will rotate with the workpiece, causing the particles to diffuse over a wide range, reducing the recovery efficiency of the suction pipe head, and inevitably resulting in particle leakage.

[0006] Based on this, one of the purposes of the present invention is to provide a laser cleaning device, which includes a base, the base is used to support the workpiece body to be cleaned, the base is provided with a cleaning head, the cleaning head is used to emit a high-energy laser beam to process the rotating workpiece body, and also includes a scraper assembly, the scraper assembly is installed on the base, the scraper assembly includes a scraper, and the scraper is in contact with the surface of the workpiece body; An air outlet box is provided on one side of the scraper, and one end of the air outlet box outputs airflow to form an air knife; A guide portion is provided on one side of the scraper away from the air outlet box; Among them, the workpiece body is rotated toward the air outlet box by the scraper, and the scraper and the wind knife work together to blow the particles on the surface of the workpiece body to the guide part. A suction pipe head is provided on the side of the guide part close to the center of the workpiece body. The guide part blows out air to the suction pipe head, and the suction pipe head sucks in the air flow blown out by the guide part, forming a guided airflow with particles between the two to reduce the diffusion range of the particles, because more particles are directly sucked into the suction pipe head along with the guided airflow, and then stored in the dust collecting box, and a small number of particles also fall at a position closer to the suction pipe head under the action of the guided airflow, but these particles will be absorbed by the suction pipe head after moving within a small range.

[0007] More specifically, a triangular head is provided at the front end of the air outlet box, and an air supply pipe is connected to one side of the air outlet box, and the air supply pipe is used to provide airflow into the air outlet box; The airflow blown out from the flat port at the front end of the triangular head forms an air knife. The airflow velocity of the air knife is 5-15m / s. Usually, the airflow velocity of the air knife is 10-20m / s, so that the attached particles on the surface of the workpiece can be effectively blown up. However, in the above scheme, the attached particles are scraped off by a scraper, so the airflow velocity can be appropriately reduced to reduce the splash range of the particles after being acted on by the air knife, so that more particles can be recovered by the suction pipe head along with the guided airflow; The distance between the position where the wind knife acts on the surface of the workpiece body and the end point of the scraper is between 0.5 cm and 1 cm, ensuring that the wind knife maintains a certain degree of concentration before reaching the scraper, thereby effectively blowing the particles to the scraper surface, reducing the diffusion loss of the airflow, and keeping the airflow speed at a stable level, ensuring that the particles can be blown to the scraper at an appropriate speed, thereby improving the starting and suspension efficiency of the particles; The inclination angle of the wind knife is smaller than the inclination angle of the scraper.

[0008] Among them, the angle between the wind knife and the surface of the workpiece body is usually set between 15° and 30°, and the angle between the scraper and the surface of the workpiece body is usually set between 30° and 45°. The inclination angle of the wind knife is small, so that the airflow can flow more parallel to the surface of the workpiece body, reducing the lateral diffusion of the airflow, so as to ensure that the airflow acts more directly on the workpiece surface, thereby enhancing the blowing effect of the particles, ensuring that the particles can be effectively guided to the scraper, and improving the conveying efficiency.

[0009] The angle between the wind knife and the surface of the workpiece is usually set between 15° and 30°, and the angle between the scraper and the surface of the workpiece is usually set between 30° and 45°. The smaller the inclination angle of the wind knife, the more parallel the airflow can flow to the surface of the workpiece, reducing the lateral diffusion of the airflow. This ensures that the airflow acts more directly on the workpiece surface, thereby enhancing the blowing effect of the particles, ensuring that the particles can be effectively guided to the scraper, and improving the conveying efficiency.

[0010] As a further improvement of the technical solution, the high-energy laser beam is located in the direction in which the scraper is facing the workpiece body, and the high-energy laser beam is arranged adjacent to the air outlet box.

[0011] The second object of the present invention is to provide a laser cleaning method for a spectacle lens coating mold, wherein the method uses the above-mentioned laser cleaning equipment to clean the spectacle lens coating mold, and the specific steps are as follows: S1. Place the mold on the base; S2, the cleaning head operates to form a high-energy laser beam to process the rotating mold surface; When the mold surface treated by the high-energy laser beam reaches the scraper, the air knife formed by the air flow output by the air outlet box blows the particles on the mold surface toward the scraper; Then, under the action of the guiding part, air flow is blown toward the air suction pipe head, and at the same time, the air duct head sucks the air flow to form a guided air flow, and the guided air flow drives the particles to flow toward the air suction pipe head, and the particles are sucked into and stored by the air suction pipe head.

[0012] The above-mentioned mold is a mold for coating eyeglass lenses, so a plurality of lens grooves are arranged in a circular array on the periphery of the mold. Then, supported by the bottom plate, particles cannot fall into the lens grooves and can only flow with the guided airflow, thereby effectively avoiding the lens grooves and reducing the possibility of particles leaking through the lens grooves.

[0013] The third object of the present invention is to provide a motion assembly for the above-mentioned laser cleaning equipment, which includes a Z-axis assembly and a W-axis assembly connected to a cleaning head, wherein: The Z-axis assembly is used to drive the cleaning head to perform linear motion along the Z-axis; The W-axis assembly is used to drive the cleaning head to rotate along the W-axis; The suction pipe head is fixed on the Z-axis assembly and moves synchronously with the cleaning head on the Z-axis. When the cleaning head rotates along the W-axis, it has no effect on the suction pipe head.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The laser cleaning method, equipment and cleaning head motion assembly for eyeglass lens coating molds are as follows: a guide part in the laser cleaning equipment blows out an airflow toward a suction pipe head, and the suction pipe head sucks in the airflow blown out by the guide part, so that a guide airflow with particles is formed between the two, and the guide airflow carries a large amount of particles blown up by the wind knife, so that the particles can be directly sucked into the suction pipe head without being affected by the rotation of the workpiece, thereby improving the recovery efficiency of particles on the surface of the workpiece.

[0015] On the whole, the airflow is guided to provide power for the particles, the impact of the rotating workpiece on the particles is reduced, the diffusion range of the particles is reduced, and the recovery of the particles by the suction pipe head is facilitated.

[0016] On this basis, the laser cleaning method for eyeglass lens coating molds can allow particles to avoid the lens grooves, reducing the possibility of particles leaking through the lens grooves.

[0017] In addition, the cleaning head motion assembly is used to make the suction pipe head move synchronously with the cleaning head on the Z axis, without the need to use other driving devices to drive the suction pipe head to move, thereby reducing the cost of equipment use, and the movement along the Z axis has a relatively small impact on the pipe components connected to the suction pipe head. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the composition structure of the laser cleaning equipment of the present invention; Figure 3 It is a schematic diagram of the workpiece body and the positioning column structure of the present invention; Figure 4 It is a schematic diagram of the structure of the scraper assembly of the present invention; Figure 5 It is a schematic diagram of the side structure of the scraper assembly of the present invention; Figure 6 It is a schematic diagram of the side structure of the laser cleaning equipment of the present invention; Figure 7 A top view of the laser cleaning device of the present invention; Figure 8 It is a schematic diagram of the structure of the air outlet box, the scraper and the air guide plate of the present invention; Fig. 9 It is a schematic diagram of the side structure of the air outlet box, the scraper and the air guide plate of the present invention; Fig.10 A top view of the air outlet box, scraper and air guide plate structure of the second embodiment of the present invention; Fig.11 A top view of the air outlet box, scraper and air guide plate structure of the third embodiment of the present invention; Fig.12 It is a schematic diagram of the side structure of the air outlet box, the scraper and the air guide plate of the third embodiment of the present invention. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] At present, when a disc-shaped workpiece is cleaned by laser, a simple rotating table is used to drive the workpiece to rotate, so as to achieve uniform cleaning of the workpiece surface. For this purpose, a first embodiment provides a laser cleaning device suitable for disc-shaped workpieces, see Figure 1 As shown, Figure 1 The middle number 100 is the outer shell, 110 is the workstation space, 120 is the dust collecting box, and 200 is the cleaning station; the workstation space 110 is obtained by enclosing the outer shell 100, and the cleaning station 200 equipped with a laser cleaning device is arranged in the workstation space 110. A door body that can be opened and closed is provided on one side of the outer shell 100 adjacent to the cleaning station 200. After the door body is opened, the disc-shaped workpiece to be cleaned is placed on the laser cleaning equipment to prepare for cleaning, and the door body is kept in a closed state during cleaning.

[0021] First embodiment, Figure 2 A laser cleaning device is disclosed, and specifically the following structure of the laser cleaning device is disclosed: 210, cleaning head; 220, scraper assembly; 230, suction pipe head; 240, positioning column; 250, workpiece body; 260, base.

[0022] The base 260 drives the positioning column 240 to rotate by a servo motor, and the positioning column 240 is set at the exact center of the base 260. The workpiece body 250 (i.e., the disc-shaped workpiece mentioned above) is placed on the base 260, and the base 260 is used to support the workpiece body 250. After being positioned by the positioning column 240, the center of the workpiece body 250 will coincide with the axis 240a of the positioning column 240 ( Figure 2 In this embodiment, as shown in Figure 3 As shown, a positioning hole 251 is provided at the center of the workpiece body 250, a limiting groove 2511 is provided on one side of the positioning hole 251, and a limiting plate 241 is provided on one side of the corresponding positioning column 240. When the workpiece body 250 is placed, the positioning hole 251 is plugged into the positioning column 240, and after the plugging, the limiting plate 241 and the limiting groove 2511 are engaged, so that the positioning column 240 can drive the workpiece body 250 to rotate around the axis 240a of the positioning column 240 under the drive of the servo motor.

[0023] Figure 2 In the embodiment, a scraper assembly 220 is arranged above the base 260, which includes Figure 4 The air outlet box 221, the scraper 222 and the air guide plate 224 in the air outlet box 221 are the main structure of the scraper assembly 220. The air outlet box 221 is connected to a hanging piece 227 for fixing it. One end of the hanging piece 227 is fixedly connected to the housing 100, and the other end is connected to the air outlet box 221, so that the air outlet box 221 can be close to the workpiece body 250 placed on the base 260, but not in contact with the workpiece body 250; Figure 4It can be seen from the structural diagram of the middle back side (the dotted part in the figure, with the view of the air outlet box 221 facing us as the front side) that an air supply pipe 2213 is connected to one side of the air outlet box 221. When the air supply pipe 2213 provides airflow to the air outlet box 221, since the air outlet box 221 is sealed on all sides, an air outlet is formed only on the side close to the workpiece body 250, and a triangular head 2211 is provided at the front end of the air outlet. The airflow blown out through the flat opening 2212 at the front end of the triangular head 2211 forms a wind knife 2214, and the airflow velocity of the wind knife 2214 is 5-15m / s.

[0024] In addition, the scraper 222 is arranged opposite to the flat opening 2212, see Fig. 9 As shown, the horizontal distance between the end point B of the scraper 222 close to the flat mouth 2212 and the flat mouth 2212 is L1, 1cm≤L1≤2cm; and the extension line of the wind knife 2214 intersects with the surface of the workpiece body 250 to obtain the intersection A (that is, the position where the wind knife 2214 acts on the surface of the workpiece body 250), and the horizontal distance between the intersection A and the end point B is L2, 0.5cm≤L2≤1cm. First, 1cm≤L1≤2cm is to ensure that the wind knife 2214 can act on the surface of the workpiece body 250. According to the Bernoulli principle, the air flow velocity is inversely proportional to the pressure. Selecting a distance of 1cm-2cm can ensure that the air flow maintains a relatively stable speed and pressure distribution after passing through the flat mouth, avoiding eddy currents and instability caused by excessive concentration of air flow, so that the wind knife 2214 formed by the air flow maintains a laminar state, which can effectively reduce the disturbance of the air flow, enhance the control ability of non-attached particles, and avoid the wind knife 2214 becoming turbulent due to excessive distance, making the blowing effect of non-attached particles unpredictable.

[0025] The attached particles are blown up by the scraper 222, and the wind knife 2214 is guided by the scraper 222 to drive the non-attached particles and attached particles (hereinafter referred to as: particles) to flow. Secondly, 0.5cm≤L2≤1cm can ensure that the wind knife 2214 maintains a certain concentration before reaching the scraper 222, thereby effectively blowing the particles to the surface of the scraper 222, reducing the diffusion loss of the airflow, and keeping the airflow speed at a stable level, ensuring that the particles can be blown to the scraper 222 at an appropriate speed, thereby improving the starting and suspension efficiency of the particles.

[0026] Preferably, the angle between the wind knife 2214 and the surface of the workpiece body 250 is usually set between 15° and 30°, and the angle between the scraper 222 and the surface of the workpiece body 250 is usually set between 30° and 45°. The inclination angle of the wind knife 2214 is smaller, so that the airflow can flow more parallel to the surface of the workpiece body 250, reducing the lateral diffusion of the airflow, which can ensure that the airflow acts more directly on the workpiece surface, thereby enhancing the blowing effect of the particles, ensuring that the particles can be effectively guided to the scraper 222, and improving the conveying efficiency.

[0027] Further, such as Figure 2 and Figure 4 As shown, Figure 4 A wind guide plate 224 is provided on the side of the scraper 222 away from the flat opening 2212. The wind guide plate 224 is used to guide the airflow. Then, the particles blown up by the scraper 222 are guided to one side by the airflow to obtain a particle outlet. Figure 2 Zhongzheng sets a suction pipe head 230 at the particle outlet, combined with Figure 1 As shown, the suction pipe head 230 is connected to the dust collecting box 120 arranged at the bottom of the shell 100. Under the action of the negative pressure pump, the suction pipe head 230 generates a suction force of 100 to 300 Pa, so that a guiding airflow a is formed between the particle outlet and the suction pipe head 230. The guiding airflow a drives the particles to flow above the surface of the workpiece body 250. In this way, the rotating workpiece body 250 will not affect the flow direction of the particles. The particles can be efficiently collected by the suction pipe head 230 and stored in the dust collecting box 120. The dust collecting box 120 adopts a detachable setting, and the stored particles can be dumped later.

[0028] like Figure 1-Figure 4 As shown, when in use, in order to facilitate the disassembly and assembly of the workpiece body 250, the cleaning head 210 is fixed in the outer shell 100 and can be raised and lowered, and the suction pipe head 230 is raised and lowered synchronously with the cleaning head 210, and the hanging piece 227 adopts a foldable design. It should be noted that the scraper 222 and the air guide plate 224 are connected to the air outlet box 221 to form an integral structure, so that the overall structure is driven to be folded through the hanging piece 227.

[0029] The cleaning head 210 and the suction pipe head 230 are synchronously moved upward, and the overall structure is folded to make room for the workpiece body 250, and then the workpiece body 250 is placed on the base 260, and the cleaning head 210, the suction pipe head 230 and the overall structure begin to reset. After the reset, the positioning column 240 is used to drive the workpiece body 250 to rotate around the axis 240a. At the same time, the cleaning head 210 runs to form a high-energy laser beam, such as Figure 6 and Figure 7 As shown, the high-energy laser beam is located in the direction in which the scraper 222 rotates toward the workpiece body 250. Preferably, see Figure 7and Figure 8 As shown, Figure 8 The middle arrow c indicates the movement direction of the workpiece body 250. The high-energy laser beam is arranged near the air outlet box 221, so that the surface treated by the high-energy laser beam is at position 1. As the workpiece body 250 rotates, it quickly reaches position 2, and position 2 is exactly where the scraper 222 is located. After reaching the scraper 222, under the joint action of the scraper 222 and the wind knife 2214, the particles on the surface treated by the laser beam flow along the scraper 222 with the air flow, and then under the guidance of the air guide plate 224, the air flow with particles is output from the particle outlet to the suction pipe head 230. Here, the particle outlet end of the air guide plate 224 is offset to the side away from the scraper 222, so that the air guide plate 224 is inclined to reduce the vortex, so that the particle flow rate out of the particle outlet is guaranteed. However, since the angle between the air guide plate 224 and the wind knife 2214 is too large, it is inevitable that particles will sink. Figure 4 and Figure 8 As shown, a bottom plate 225 is provided at the bottom of the air guide plate 224, and a step is formed between the bottom plate 225 and the scraper plate 222, so that the sinking particles will be received by the bottom plate 225. Moreover, a top plate 223 is provided at the top of the air guide plate 224, and one side of the top plate 223 is provided in contact with the triangular head 2211 to seal the top, and a side plate 226 is provided at the end of the scraper plate 222 away from the particle outlet, and the side plate 226 is fixedly connected to the triangular head 2211 through a fixing plate 2261 on the outside of the side plate 226, and then the side away from the particle outlet is blocked by the side plate 226, so that under the action of the top plate 223 and the side plate 226, the particles are prevented from diffusing outward, and finally, with the suction action of the suction pipe head 230, the particles are stored in the dust collecting box 120 after being guided by the suction pipe head 230 along with the air flow a.

[0030] When the workpiece body 250 rotates one circle, the cleaning is completed. At this time, the cleaning head 210 and the suction pipe head 230 move upward synchronously, and the overall structure is folded to make room for the workpiece body 250, and then the workpiece body 250 is removed from the base 260.

[0031] like Figure 8 As shown, in this embodiment, the surface of the workpiece body 250 is in an inclined state, with an inclination angle of ∠1, and the scraper 222 also needs to be inclined to fit the surface of the workpiece body 250, such as Figure 4 and 5 As shown, the hanging member 227 includes a hanger 2271, a cross plate 2272 and a hydraulic rod 2273, wherein: the top of the hanger 2271 is fixed on the housing 100, the cross plate 2272 is rotatably connected to the bottom of the hanger 2271, and then the two are folded or unfolded by the drive of the hydraulic rod 2273. Specifically, as shown in FIG. Figure 5As shown, the vertical distance between the rotation point 2274 between the horizontal plate 2272 and the hanger 2271 and the surface of the workpiece body 250 is H, and H is slightly smaller than the vertical distance between the scraper 222 and the rotation point 2274, and the scraper 222 is made of a flexible material. In this way, when the horizontal plate 2272 is unfolded, the scraper 222 can fit tightly with the surface of the workpiece body 250, thereby improving the scraper 222's ability to scrape off attached particles. At the same time, the flexible material can also protect the surface of the workpiece body 250.

[0032] It should be noted that if Figure 7 As shown, the suction pipe head 230 is disposed adjacent to the positioning column 240. On the one hand, the suction pipe head 230 is kept away from the particle outlet to reduce interference with the wind knife 2214. On the other hand, the suction coverage of the suction pipe head 230 is expanded ( Figure 7 The shaded part in the figure (because the workpiece body 250 in this embodiment is rotating, a fan-shaped surface is used as an example for explanation). Because the guided airflow a is relatively diffuse compared to the wind knife 2214, it is inevitable that particles will fall on the workpiece body 250. At this time, due to the support of the bottom plate 225, the distance for the particles to roll down is shortened. Therefore, even if the workpiece body 250 rotates, the particles can be within the coverage of the suction force of the suction pipe head 230, ensuring full recovery of the particles. It should be noted here that because the surface of the workpiece body 250 is inclined toward the center of the circle, even if the workpiece body 250 is rotating, the particles within the coverage range will roll along the surface of the workpiece body 250 toward the suction pipe head 230. The closer the distance to the suction pipe head 230, the greater the suction force, and the easier it is to be sucked into the suction pipe head 230.

[0033] For ease of understanding, Figure 7 For example, suppose a particle weighing 2g falls on the surface of the workpiece body 250 at k1, the time is t1, and the particle is sucked into the suction pipe head 230 at k2, the time is t2; suppose a particle weighing 1g falls on the surface of the workpiece body 250 at k1, the time is t1, and the particle is sucked into the suction pipe head 230 at k3, the time is t3, where: t3-t1=t2-t1; The distance between k2 and the air suction pipe head 230 is closer than the distance between k3 and the air suction pipe head 230 .

[0034] It can be seen that because the suction force is greater near the suction pipe head 230, heavier particles can be sucked in at a position closer to the suction pipe head 230, and lighter particles can also be sucked in within the suction coverage range of the suction pipe head 230. The lighter particles will not fall on the workpiece body 250, but will directly enter the suction pipe head 230 along with the guided airflow a.

[0035] It should be noted that, because the above structure is mainly used in the mold for coating eyeglass lenses, a plurality of lens grooves are arranged in a circular array on the periphery of the workpiece body 250 (i.e., the mold), which makes it easy for the wind knife 2214 to blow particles into the lens grooves. Fig. 9 As shown, in this embodiment, by controlling the distance between the intersection A and the end point B, as well as the angle of the wind knife 2214 and the scraper 222, the particles can be effectively blown onto the scraper 222 and then flow with the airflow. In addition, with the support of the bottom plate 225, the particles cannot fall into the lens groove and can only flow with the guided airflow a.

[0036] Therefore, even with the existence of the lens groove, most of the particles can be absorbed by the suction pipe head 230.

[0037] The second embodiment, as Fig.10 As shown, in this embodiment, there is an angle ∠2 between the wind knife 2214 blown out by the flat opening 2212 at the front end of the triangular head 2211 and the wind guide plate 224, 120°≤∠2≤160°, which can increase the strength of the guided airflow a formed after the wind knife 2214 contacts the wind guide plate 224.

[0038] The third embodiment, as Fig.11 and Fig.12 As shown, a plurality of spoilers 2251 are arranged above the bottom plate 225. After the wind knife 2241 passes through the spoiler 2251, the particles will sink. At this time, an air flow fan 2252 is arranged on the side of the top of the bottom plate 225 away from the particle outlet. Under the action of the air flow fan 2252, air flow is blown toward the suction pipe head 230.

[0039] In summary, a guide portion is provided on the side of the scraper 222 away from the triangular head 2211, and the guide portion has a particle outlet toward the suction pipe head 230, and outputs a guiding airflow a to the suction pipe head 230 through the particle outlet to drive the particles to flow toward the suction pipe head 230, and are sucked into the suction pipe head 230 and stored in the dust collecting box 120.

[0040] The present invention also provides a cleaning method, which uses the above-mentioned laser cleaning device to clean the eyeglass lens coating mold, and the specific steps are as follows: S1, placing the mold on the base 260; S1.1. Connect the positioning hole 251 on the mold with the positioning column 240 on the base 260, wherein: A limiting plate 241 is provided on one side of the positioning column 240, and a limiting groove 2511 is provided on one side of the positioning hole 251; After the positioning hole 251 is plugged into the positioning column 240, the limiting plate 241 is engaged with the limiting groove 2511; S1.2, the positioning column 240 drives the mold to rotate around the positioning column 240 under the drive of the servo motor; S2, the cleaning head 210 operates to form a high-energy laser beam to process the mold surface; When the mold surface processed by the high-energy laser beam reaches the scraper 222, the air knife 2214 formed by the air flow output by the air outlet box 221 blows the particles on the mold surface toward the scraper 222; Then, under the action of the guiding part, air flow is blown toward the suction pipe head 230, and at the same time, the air duct head 230 sucks the air flow to form a guided air flow a, which drives the particles to flow toward the suction pipe head 230. After being sucked by the suction pipe head 230, the particles are stored in the dust collecting box 120.

[0041] The present invention also provides a motion assembly, which includes a Z-axis assembly and a W-axis assembly connected to the cleaning head 210, such as Figure 2 As shown, where: The Z-axis assembly is used to drive the cleaning head 210 to perform linear motion along the Z-axis; The W-axis assembly is used to drive the cleaning head 210 to rotate along the W-axis; The suction pipe head 230 is fixed on the Z-axis assembly so that it can move synchronously with the cleaning head 210 on the Z-axis. When the cleaning head 210 rotates along the W-axis, it has no effect on the suction pipe head 230.

[0042] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A laser cleaning device, comprising a base (260), the base (260) being used to support a workpiece body (250) to be cleaned, a cleaning head (210) being arranged on the base (260), the cleaning head (210) being used to emit a high-energy laser beam to process the rotating workpiece body (250), and further comprising a scraper assembly (220), the scraper assembly (220) being mounted on the base (260), characterized in that: The scraper assembly (220) comprises a scraper (222), and the scraper (222) is in contact with the surface of the workpiece body (250); An air outlet box (221) is provided on one side of the scraper (222), and an end of the air outlet box (221) outputs airflow to form an air knife (2214); A guide portion is provided on a side of the scraper (222) away from the air outlet box (221); The workpiece body (250) is rotated toward the air outlet box (221) by the scraper (222), and the scraper (222) and the wind knife (2214) work together to blow particles on the surface of the workpiece body (250) to the guide part. A suction pipe head (230) is provided on one side of the guide part close to the center of the workpiece body (250). The guide part blows air toward the suction pipe head (230), and the suction pipe head (230) sucks the airflow blown out by the guide part, so that a guided airflow with particles is formed between the two to reduce the diffusion range of the particles.

2. The laser cleaning device according to claim 1, characterized in that: A triangular head (2211) is provided at the front end of the air outlet box (221); an air supply pipe (2213) is connected to one side of the air outlet box (221); the air supply pipe (2213) is used to provide airflow into the air outlet box (221); The airflow blown out through the flat opening (2212) at the front end of the triangular head (2211) forms a wind knife (2214); The distance between the position where the wind knife (2214) acts on the surface of the workpiece body (250) and the end point of the scraper (222) is between 0.5 cm and 1 cm; The inclination angle of the wind knife (2214) is smaller than the inclination angle of the scraper (222).

3. The laser cleaning device according to claim 2, characterized in that: The high-energy laser beam is located in the direction in which the scraper (222) rotates towards the workpiece body (250), and the high-energy laser beam is arranged adjacent to the air outlet box (221).

4. The laser cleaning device according to claim 1, characterized in that: The guide portion comprises an air guide plate (224), wherein the air guide plate (224) guides the airflow forming the wind knife (2214) to one side to obtain a particle outlet; The particle outlet is directly opposite to the suction pipe head (230); The air suction pipe head (230) is arranged adjacent to the center of the workpiece body (250).

5. The laser cleaning device according to claim 4, characterized in that: A bottom plate (225) is provided at the bottom of the air guide plate (224), and a step is formed between the bottom plate (225) and the scraper (222) for receiving the sinking particles.

6. The laser cleaning device according to claim 4 or 5, characterized in that: The included angle between the wind knife (2214) and the wind guide plate (224) is between 120° and 160°.

7. The laser cleaning device according to claim 5, characterized in that: The particle outlet end of the air guide plate (224) is offset toward a side away from the scraper plate (222); A top plate (223) is provided on the top of the air guide plate (224), and the top plate (223) is used to seal the top. A side plate 226 is provided at an end of the scraper 222 away from the particle outlet. The side plate 226 is fixedly connected to the triangular head 2211 via a fixing plate 2261, and then the side away from the particle outlet is sealed by the side plate 226.

8. The laser cleaning device according to claim 5, characterized in that: A plurality of spoilers (2251) are arranged above the bottom plate (225), and an airflow fan (2252) is arranged on a side of the top of the bottom plate (225) away from the particle outlet, and the airflow fan (2252) blows airflow toward the suction pipe head (230) when in operation.

9. A laser cleaning method for eyeglass lens coating molds, characterized in that: The laser cleaning device according to any one of claims 1 to 4 is used to clean the eyeglass lens coating mold, and the specific steps are as follows: S1, placing the mold on a base (260); S2, the cleaning head (210) operates to generate a high-energy laser beam to process the rotating mold surface; When the mold surface processed by the high-energy laser beam reaches the scraper (222), the air knife (2214) formed by the air flow output by the air outlet box (221) blows the particles on the mold surface toward the scraper (222); Then, under the action of the guide portion, an airflow is blown toward the air suction pipe head (230), and at the same time, the air duct head (230) sucks the airflow to form a guided airflow, and the guided airflow drives the particles to flow toward the air suction pipe head (230), and the particles are sucked into and stored by the air suction pipe head (230).

10. A motion assembly for a laser cleaning device according to any one of claims 1 to 4, characterized in that: It comprises a Z-axis assembly and a W-axis assembly connected to a cleaning head (210), wherein: The Z-axis assembly is used to drive the cleaning head (210) to perform linear motion along the Z-axis; The W-axis assembly is used to drive the cleaning head (210) to rotate along the W-axis; The suction pipe head (230) is fixed on the Z-axis assembly and moves synchronously with the cleaning head (210) on the Z-axis.

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