A laser cutting device for mobile phone camera glass cover plate

Abstract

The application relates to the technical field of laser cutting, and discloses a laser cutting device for a mobile phone camera glass cover plate, which comprises a base frame, a ceramic base plate is arranged at the top end of the base frame, a longitudinal mounting frame is arranged at the top end of the ceramic base plate, a plate-type conveying belt is arranged at the top end of the longitudinal mounting frame, transverse mounting frames are arranged at the two sides of the longitudinal mounting frame, and displacement auxiliary belts are arranged between the transverse mounting frames. Through cooperation of a reflection assembly and a light splitting assembly, a single laser beam is split into multiple parallel laser beams, multiple cutting focal points are formed, multiple curved sections of the glass cover plate can be processed at the same time, the cutting time is significantly shortened, the plate-type conveying belt is used in cooperation with the displacement auxiliary belts to realize accurate positioning in a two-dimensional plane, stress concentration and micro-cracks generated by traditional clamping positioning are avoided, and the product yield is improved.

Description

Technical Field

[0001] This invention relates to the field of laser cutting technology, specifically to a laser cutting device for mobile phone camera glass covers. Background Technology

[0002] In the processing of mobile phone camera glass covers, laser cutting has become the mainstream cutting process due to its advantages such as high precision, non-contact operation, and small heat-affected zone. However, most existing laser cutting equipment is a single-path, single-focus structure, meaning that one laser generator can only provide one cutting point, resulting in low cutting efficiency. For workpieces like camera glass covers that require multi-segment curves or circular cutting, a single-path requires multiple reciprocating scans, leading to long processing times and difficulty in meeting the needs of mass production. Traditional devices often use clamping positioning, which can easily cause stress concentration or even micro-cracks on the glass surface. Relying solely on conveyor belt positioning can cause glass displacement during cutting, affecting cutting accuracy. During the cutting process, if the laser focus position shifts or the lens assembly drifts due to heat, it cannot be detected and corrected in time, resulting in unstable cutting quality and an increased scrap rate. Summary of the Invention

[0003] The purpose of this invention is to provide a laser cutting device for mobile phone camera glass covers, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A base frame is included, a ceramic pad is connected to the top of the base frame, a longitudinal mounting frame is connected to the top of the ceramic pad, a plate conveyor belt is connected to the top of the longitudinal mounting frame, transverse mounting frames are connected to both sides of the longitudinal mounting frame, a displacement auxiliary belt is connected between the transverse mounting frames, a set of diffuse reflection sensors is connected to both sides of the plate conveyor belt at the top of the longitudinal mounting frame, a cutting chamber is connected to the top of the ceramic pad, a transverse frame is connected to the inner side of the cutting chamber, and one side of the transverse frame slides. Multiple sets of photoelectric detectors are provided. Multiple sets of adjustment components are connected to both sides of the inside of the cutting chamber. A reflection component, a beam splitting component, and a guide cutting component are respectively connected to one side of each adjustment component. A laser head assembly is connected to one side of the inner wall of the cutting chamber. A laser generator is connected to the top of the cutting chamber. An observation window is provided at the top of the cutting chamber. A bridge is connected to the top of the cutting chamber above the observation window. An industrial camera is connected to one side of the bridge. A feeding component is connected to the top of the ceramic pad at the tail of the plate conveyor belt. A control box is connected to one side of the base frame.

[0005] Preferably, a drive unit is connected to one side of both the transverse mounting frame and the longitudinal mounting frame. The two sets of drive units are respectively connected to the corresponding plate conveyor belt and the displacement auxiliary belt. The drive unit includes a fixed plate. A servo motor is connected to one side of the fixed plate. A timing wheel is connected to the output end of the servo motor and the transmission roller of the corresponding displacement auxiliary belt and the plate conveyor belt. A timing belt is sleeved between the timing wheels.

[0006] Preferably, the plate conveyor belt is composed of multiple sets of alumina and other ceramic plates interlocked together, and an air extraction chamber is connected to the inner side of the longitudinal mounting frame between the plate conveyor belts, with an external vacuum pump connected to one side of the air extraction chamber.

[0007] Preferably, the adjustment assembly includes an adjustment motor and a guide rail fixedly mounted on the inner wall of the cutting chamber. A movable plate is slidably mounted on one side of the guide rail, and a connecting kit is connected to one side of the movable plate. A lead screw is connected to the output end of the guide rail, and the lead screw is threadedly connected to the connecting kit. Holding arms are connected to both sides of the movable plate, and the reflection assembly, beam splitting assembly, and guide cutting assembly are connected to the corresponding holding arms.

[0008] Preferably, the reflective component includes a connecting frame, with multiple sets of movable frames slidably arranged inside the connecting frame. Each movable frame has a set of reflective mirrors connected to its top. A sliding hole is provided on one side of the connecting frame, and an adjusting bolt is connected to one side of the movable frame through the sliding hole. The beam splitting component is located below the reflective component.

[0009] Preferably, the beam splitting assembly includes a second connecting frame, on both sides of the top of the second connecting frame are beam splitter groups, a guide frame is slidably arranged between the beam splitter groups, and plugs are connected to both sides of the guide frame. The plugs are interference-fitted with the beam splitter groups, and the guide cutting assembly is located below the beam splitting assembly.

[0010] Preferably, the guide cutting assembly includes a connecting frame three, a receiving frame is slidably arranged inside the connecting frame three, a steering mirror assembly is connected to the top of the receiving frame, and a focusing lens is connected to the bottom of the receiving frame. The focusing lens is located directly below the steering mirror assembly. A sliding hole two is opened on one side of the connecting frame three, and an adjusting bolt two is connected to one side of the receiving frame through the sliding hole two.

[0011] Preferably, the displacement auxiliary belt includes an adjustment belt, the top of which has a cutting opening, and the inner side of the adjustment belt below the cutting opening has a pushing edge, and one side of the pushing edge has a guide wall.

[0012] Preferably, the control box includes a mounting base, a servo motor 2 and a support arm are connected to the top of the mounting base, a receiving platform is rotatably provided at the top of the support arm, a timing wheel 2 is connected to the output end of the servo motor 2 and one end of the bottom rotating shaft of the receiving platform, and a timing belt 2 is sleeved between the timing wheels 2.

[0013] Preferably, two sets of infrared sensors are connected to the top of the mounting base, and a driven arm is connected to one side of the receiving platform.

[0014] In summary, the beneficial effects of this invention are: This application utilizes a combination of a reflective component and a beam splitter to divide a single laser beam into multiple parallel laser beams, forming multiple cutting focal points. This allows for simultaneous processing of multiple curved sections of a glass cover plate, significantly shortening the cutting time. A plate conveyor belt, combined with a displacement auxiliary belt, achieves precise positioning within a two-dimensional plane, avoiding stress concentration and micro-cracks caused by traditional clamping positioning, thus improving product yield. An air extraction chamber, in conjunction with an external vacuum pump, creates negative pressure to adhere the glass cover plate flat to the conveyor belt surface, effectively preventing displacement during cutting and ensuring cutting accuracy. Each set of reflective, beam splitting, and guiding cutting components is equipped with independent adjustment components, allowing for independent height adjustment along the Z-direction. This precisely controls the optical path difference and focusing position of each optical path branch. An industrial camera, along with a photodetector, monitors the laser power and spot position of each branch in real time, ensuring stable cutting quality and meeting the needs of mass automated production. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a laser cutting device for mobile phone camera glass cover plates according to the present invention. Figure 2 This is a side cross-sectional view of a laser cutting device for mobile phone camera glass cover plate according to the present invention. Figure 3 This is a cross-sectional schematic diagram of a laser cutting device for mobile phone camera glass cover plate according to the present invention. Figure 4 for Figure 3 Schematic diagram of Part B in the middle section; Figure 5 This is a partial structural schematic diagram of a laser cutting device for mobile phone camera glass cover plates according to the present invention. Figure 6 for Figure 3 Schematic diagram of the structure of part C; Figure 7 This is a schematic diagram of the displacement auxiliary belt in a laser cutting device for mobile phone camera glass cover of the present invention; Figure 8 This is a schematic diagram of each lens group in the overall laser cutting device for mobile phone camera glass cover of the present invention; Figure 9 This is a schematic diagram of the material feeding component in a laser cutting device for mobile phone camera glass covers according to the present invention.

[0016] In the diagram: 1. Base frame; 2. Ceramic pad; 3. Longitudinal mounting frame; 4. Plate conveyor belt; 5. Transverse mounting frame; 6. Displacement auxiliary belt; 61. Adjusting belt; 62. Cutting notch; 63. Pushing edge; 64. Guide wall; 7. Drive unit; 71. Fixed plate; 72. Servo motor 1; 73. Timing wheel 1; 74. Timing belt; 8. Diffuse reflection sensor; 9. Evacuation chamber; 10. Cutting chamber; 11. Transverse frame; 12. Photodetector; 13. Adjustment assembly; 131. Adjusting motor; 132. Guide rail; 133. Moving plate; 134. Connecting kit; 135. Lead screw; 136. Connecting arm; 14. Reflection assembly; 141. Connecting frame 1; 142. Moving frame; 1 43. Reflector assembly; 144. Adjusting bolt one; 15. Beam splitter assembly; 151. Connecting frame two; 152. Guide frame; 153. Beam splitter assembly; 154. Plug; 16. Guide cutting assembly; 161. Connecting frame three; 162. Receiving frame; 163. Steering mirror assembly; 164. Focusing lens; 165. Adjusting bolt two; 17. Laser head assembly; 18. Laser generator; 19. Observation window; 20. Cable tray; 21. Industrial camera; 22. Unloading assembly; 231. Mounting base; 232. Servo motor two; 233. Support arm; 234. Receiving platform; 235. Timing wheel two; 236. Timing belt two; 23. Control box; 24. Driven arm; 25. Infrared sensor. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figure 1-9This invention provides a technical solution comprising a base frame 1, which serves as the supporting base for the entire device. A ceramic pad 2 is fixedly connected to the top of the base frame 1. The ceramic pad 2 is made of alumina or silicon nitride ceramic material, possessing good thermal conductivity and insulation properties, and effectively absorbing stray light generated during laser cutting. A longitudinal mounting frame 3 is fixedly connected to the top of the ceramic pad 2, extending along the length of the device. A plate conveyor belt 4 is connected to the top of the longitudinal mounting frame 3. The plate conveyor belt 4 is composed of multiple sets of alumina ceramic plates hinged together, with a smooth surface and good heat resistance, used for bearing... The device longitudinally conveys the glass cover plate to be cut. Transverse mounting frames 5 are connected to both sides of the longitudinal mounting frame 3. The transverse mounting frames 5 extend along the width direction of the device. Displacement auxiliary belts 6 are connected between the transverse mounting frames 5 to assist in the precise positioning and fine adjustment of the glass cover plate in the transverse direction. A drive unit 7 is connected to one side of both the longitudinal mounting frame 3 and the transverse mounting frame 5. The two sets of drive units 7 are respectively connected to the corresponding plate conveyor belt 4 and displacement auxiliary belt 6. The servo motor 72 drives the corresponding transmission roller to rotate through the timing wheel 73 and the timing belt 74, thereby driving the plate conveyor belt 4 or the displacement auxiliary belt 6 to operate.

[0019] A set of diffuse reflection sensors 8 are connected to the top of the longitudinal mounting frame 3 on both sides of the plate conveyor belt 4 to detect whether the glass cover has reached the cutting position. An air extraction chamber 9 is connected to the inner side of the longitudinal mounting frame 3 between the plate conveyor belts 4. The top surface of the air extraction chamber 9 has evenly distributed air extraction holes, and an external vacuum pump is connected to one side. When the glass cover is transported to the cutting position, the external vacuum pump is started. Through the gap between the air extraction chamber 9 and the ceramic plate on the plate conveyor belt 4, a negative pressure is generated to adsorb the glass cover, which is then fixed flat on the surface of the plate conveyor belt 4 to prevent displacement during the cutting process.

[0020] A cutting chamber 10 is fixedly connected to the top of the ceramic pad 2. The cutting chamber 10 is a closed box structure with openings on its front and rear sides for the plate conveyor belt 4 to pass through. A transverse frame 11 is connected to the inside of the cutting chamber 10. Multiple photodetectors 12 are damped and slidably installed on one side of the frame to monitor the laser power and spot position of each optical path branch in real time. An observation window 19 is provided at the top of the cutting chamber 10. The observation window 19 is a transparent quartz glass window located in the center of the top of the cutting chamber 10. A bridge 20 is connected above the observation window 19 at the top of the cutting chamber 10. An industrial camera 21 is connected to one side of the bridge 20. The industrial camera 21 performs real-time imaging of the glass cover plate inside the cutting chamber 10 through the observation window 19 to identify the edge contour and mark point position of the glass cover plate and transmits the image information to the control box 23. The control system calculates the cutting path and determines whether the glass is accurately positioned.

[0021] A laser head assembly 17 is connected to one side of the inner wall of the cutting chamber 10. The laser head assembly 17 includes a laser head beam expander and an acousto-optic modulator connected sequentially along the optical path. A laser generator 18 is connected to the top of the cutting chamber 10. The original laser beam generated by the laser generator 18 is transmitted to the laser head assembly 17 through an optical fiber or optical path. The laser head beam expander is used to expand and collimate the laser beam, and the acousto-optic modulator is used to perform high-frequency switching modulation on the laser beam to control the on / off state and power output of the laser.

[0022] Multiple sets of adjustment components 13 are connected to both sides inside the cutting chamber 10. The three sets of adjustment components 13 correspond to the reflection component 14, the beam splitting component 15, and the guide cutting component 16, respectively. Each set of adjustment components 13 includes an adjustment motor 131 and a guide rail 132 fixedly installed on the inner wall of the cutting chamber 10. The adjustment motor 131 is a stepper motor or a servo motor, and its output end is connected to a lead screw 135. The guide rail 132 is fixedly installed in the vertical direction. A moving plate 133 is slidably installed on one side of the guide rail 132. The moving plate 133 can slide up and down along the guide rail 132. One side of the moving plate 133 is fixedly connected to... There is a connecting kit 134, and the lead screw 135 is threadedly connected to the connecting kit 134. When the adjusting motor 131 drives the lead screw 135 to rotate, the lead screw 135 drives the connecting kit 134 through the thread to drive the moving plate 133 to move up and down along the guide rail 132. Both sides of the moving plate 133 are fixedly connected to the mounting arms 136. The reflection component 14, the beam splitting component 15 and the guide cutting component 16 are respectively fixedly connected to the corresponding mounting arms 136. Through the adjusting component 13, each group of optical components can be independently adjusted up and down along the Z direction, thereby accurately controlling the optical path difference and focusing position of each optical path branch.

[0023] The reflective assembly 14 includes a connecting frame 141, which is a rectangular frame structure. Its two sides are fixedly connected to the corresponding mounting arms 136. Multiple sets of movable frames 142 are slidably arranged on the inner side of the connecting frame 141. Each set of movable frames 142 can slide independently along the length of the connecting frame 141. A reflector group 143 is fixedly connected to the top of each set of movable frames 142. The reflector group 143 is a high reflectivity dielectric film reflector and is equipped with an optical mount for reflecting the incident laser beam to the next optical path element. A sliding hole is opened on one side of the connecting frame 141. An adjusting bolt 144 is connected to one side of the movable frame 142 through the sliding hole. After loosening the adjusting bolt 144, the movable frame 142 can slide freely in the connecting frame 141. After adjustment, the adjusting bolt 144 is tightened to fix the movable frame 142.

[0024] The beam splitter assembly 15 is located directly below the reflector assembly 14. The beam splitter assembly 15 includes a second connecting frame 151, which is a rectangular frame structure. Its two sides are fixedly connected to the corresponding mounting arms 136. The top two sides of the second connecting frame 151 are fixedly connected to guide frames 152. The beam splitter group 153 is a semi-transparent and semi-reflective mirror or a beam splitter prism, and is equipped with a corresponding mirror mount. Its beam splitting ratio can be selected as needed. The two sides of the beam splitter group 153 are fixedly connected to plugs 154. The plugs 154 are interference-fitted with the inner side of the guide frame 152. By sliding the guide frame 152, the relative distance and angle between the beam splitter groups 153 can be changed, thereby adjusting the propagation path and spacing of the two laser beams after beam splitting.

[0025] The guiding and cutting assembly 16 is located directly below the beam splitting assembly 15. The guiding and cutting assembly 16 includes a connecting frame 161, which is a rectangular frame structure. Both sides of the connecting frame 161 are fixedly connected to corresponding receiving arms 136. A receiving frame 162 is slidably disposed on the inner side of the connecting frame 161, and the receiving frame 162 can slide along the length of the connecting frame 161. A steering mirror assembly 163 is fixedly connected to the top of the receiving frame 162. The steering mirror assembly 163 is used to vertically deflect the incident laser beam downwards and receive... A focusing lens 164 is fixedly connected to the bottom of the frame 162. The focusing lens 164 is located directly below the turning mirror group 163 and is used to focus the folded laser beam onto the surface of the glass cover plate. A sliding hole 2 is provided on one side of the connecting frame 3 161. An adjusting bolt 2 165 is connected to one side of the receiving frame 162 through the sliding hole 2. After loosening the adjusting bolt 2 165, the receiving frame 162 can slide freely in the connecting frame 3 161. After adjustment, tighten the adjusting bolt 2 165 to fix the receiving frame 162.

[0026] The displacement auxiliary belt 6 includes an adjustment belt 61. The top of the adjustment belt 61 has a cutting opening 62, which is a strip-shaped opening extending along the length of the adjustment belt 61. This opening allows the laser beam output from the focusing lens 164 to pass through and act on the glass cover plate on the lower plate conveyor belt 4. The inner side of the adjustment belt 61, below the cutting opening 62, has a pushing edge 63. The pushing edge 63 is a laterally extending plate-like structure with a guide wall 64 on one side. When the drive unit 7 drives the displacement auxiliary belt 6 to operate, the adjustment belt 61 drives the pushing edge 63 to move synchronously. During the movement, the pushing edge 63 contacts the edge of the glass cover plate through the guide wall 64, pushing the glass cover plate to move along the X direction on the surface of the plate conveyor belt 4. The operation of the plate conveyor belt 4 itself can drive the glass cover plate to move along the Y direction. The combination of the two makes the glass cover plate form a two-dimensional motion platform in the X and Y planes, which, together with the laser cutting head, completes the cutting of complex paths without moving the laser optical path system.

[0027] A feeding assembly 22 is connected to the top of the ceramic pad 2 at the tail of the plate conveyor belt 4. The feeding assembly 22 includes a mounting base 231, which is fixedly connected to the top of the ceramic pad 2. A servo motor 232 and a support arm 233 are fixedly connected to the top of the ceramic pad 2. A receiving platform 234 is rotatably mounted on the top of the support arm 233. The receiving platform 234 is a flat structure used to receive the glass cover after cutting. A timing wheel 235 is fixedly connected to the output end of the servo motor 232 and one end of the bottom shaft of the receiving platform 234. A timing belt 236 is sleeved between the timing wheels 235. When the servo motor 232 starts, it drives the receiving platform 234 to rotate around the support arm 233 via the timing belt 236. The rotating shaft at the top of the 33 rotates to realize the flipping and unloading of the receiving platform 234. Two sets of infrared sensors 25 are connected to the top of the mounting base 231 to detect whether there is a workpiece in place on the receiving platform 234 and the flipping angle of the receiving platform 234. A driven arm 24 is connected to one side of the receiving platform 234. The position of the driven arm 24 is monitored by the infrared sensor 25 to determine whether the rotation is in place. The cut glass cover is sent to the receiving platform 234 by the plate conveyor belt 4. After the infrared sensor 25 detects that the workpiece is in place, the servo motor 232 drives the receiving platform 234 to flip at a certain angle, so that the glass cover slides down along the driven arm 24 to the collection box below or the conveyor belt of the next process, realizing automatic unloading.

[0028] The raw laser beam generated by the laser generator 18 is transmitted to the laser head assembly 17 via optical fiber. After being expanded and collimated by the laser head beam expander and modulated by the acousto-optic modulator, it is emitted horizontally from the output end of the laser head assembly 17. The first laser beam is the main optical path and first enters the first beam splitter group 152 of the beam splitter assembly 15. The beam splitter group 152 splits the incident laser into two beams. One part of the laser passes directly through the first beam splitter group 152 and continues to advance, entering the steering mirror group 163 of the first guide cutting assembly 16. The other part of the laser is reflected upward by the first beam splitter group 152 and enters the first reflector group 143 of the reflector assembly 14. The laser reflected to the first reflector group 143 is then folded downward after being reflected by the reflector group 143 and enters the second beam splitter group 152 of the beam splitter assembly 15. 152 again splits the laser into two beams. One part of the transmitted light continues to be incident downwards onto the turning mirror group 163 of the second set of guide cutting components 16, and the other part of the reflected light is reflected upwards onto the second set of reflector group 143. And so on, each set of reflector group 143 reflects the laser downwards to the next set of beam splitter group 152 or guide cutting component 16, thereby splitting one incident laser beam into multiple parallel outgoing laser beams. The last set of reflector group 143 reflects the laser directly downwards onto the turning mirror group 163 of the last set of guide cutting components 16, without further beam splitting. In each set of guide cutting components 16, the laser is deflected downwards by the turning mirror group 163 and incident vertically onto the focusing lens 164. After being focused by the focusing lens 164, it passes through the cutting opening 62 on the adjusting belt 61 and finally irradiates the surface of the glass cover plate on the plate conveyor belt 4, forming a cutting focal point.

[0029] The control box 23 is fixedly connected to one side of the base frame 1. It integrates a PLC controller, motion control card, laser power supply and image processing module, and is used to coordinate and control servo motor 1 72, servo motor 232, adjustment motor 131, laser generator 18, acousto-optic modulator, external vacuum pump and industrial camera 21 and other components.

[0030] Working principle: In use, the mobile phone camera glass cover to be cut is first placed on the plate conveyor belt 4. The drive unit 7 drives the plate conveyor belt 4 to rotate, conveying the glass cover longitudinally to the cutting station. After the glass cover is in place, the control box 23 controls the external vacuum pump to start, generating negative pressure to adsorb the glass cover through the air extraction chamber 9, flattening and fixing it on the surface of the plate conveyor belt 4. Then, the drive unit 7 on the transverse mounting frame 5 drives the displacement auxiliary belt 6 to rotate. The pushing edge 63 on the inner side of the adjusting belt 61 pushes the glass cover laterally on the surface of the plate conveyor belt 4 through the guide wall 64, combined with the plate conveyor belt... The longitudinal movement of component 4 moves the glass cover plate to the preset cutting starting position in a two-dimensional plane. Simultaneously with the glass cover plate's transport and positioning, the laser generator 18 generates a raw laser beam, which is transmitted via optical fiber to the laser head assembly 17. After sequentially undergoing beam expansion, collimation, and acousto-optic modulation, the beam exits horizontally. The laser beam is incident on the first beam splitter group 152 of the beam splitter assembly 15. Part of the laser beam passes directly through and is incident on the steering mirror group 163 of the first guide cutting assembly 16, while the other part is reflected to the first reflector group 143 of the reflector assembly 14. After reflection, it is deflected downwards and incident on the second beam splitter group 152, and so on. Similarly, the single laser beam is divided into multiple parallel laser beams, which are deflected downwards by corresponding turning mirror groups 163 and focused by focusing lens 164 before passing through the cutting opening 62 on the adjusting belt 61, forming multiple cutting focal points that simultaneously illuminate different cutting positions on the glass cover surface. During the cutting process, the industrial camera 21 acquires real-time images of the glass cover through the observation window 19, identifying the edge contours and marker point positions. The control box 23 dynamically adjusts the movement trajectory of the plate conveyor belt 4 and the displacement auxiliary belt 6 based on image feedback to ensure that the cutting path accurately matches the actual workpiece position. At the same time, multiple sets of photodetectors 12 monitor each optical path support in real time. The control box 23 adjusts the laser power and spot position of the optical path. When a laser power deviation or spot shift is detected, the control box 23 drives the corresponding reflection component 14, beam splitting component 15 or guide cutting component 16 to make fine adjustments along the Z direction through the adjustment component 13 to correct the optical path parameters. After the cutting is completed, the external vacuum pump stops working and releases the negative pressure adsorption. The plate conveyor belt 4 continues to transport the cut glass cover to the tail end and sends it to the receiving platform 234 of the unloading component 22. The servo motor 232 drives the receiving platform 234 to rotate at a certain angle through the timing belt 236. The glass cover slides down the driven arm 24 into the collection box, completing the automatic unloading.

Claims

1. A laser cutting device for mobile phone camera glass cover plates, comprising a base frame (1), characterized in that: A ceramic pad (2) is connected to the top of the base frame (1). A longitudinal mounting frame (3) is connected to the top of the ceramic pad (2). A plate conveyor belt (4) is connected to the top of the longitudinal mounting frame (3). Transverse mounting frames (5) are connected to both sides of the longitudinal mounting frame (3). A displacement auxiliary belt (6) is connected between the transverse mounting frames (5). A set of diffuse reflection sensors (8) is connected to both sides of the plate conveyor belt (4) at the top of the longitudinal mounting frame (3). A cutting chamber (10) is connected to the top of the ceramic pad (2). A transverse frame (11) is connected to the inside of the cutting chamber (10). Multiple sets of photodetectors (12) are slidably arranged on one side of the transverse frame (11). Both sides of the inside of the cutting chamber (10) are... The connection is provided with multiple sets of adjustment components (13). Each set of adjustment components (13) is connected to a reflection component (14), a beam splitting component (15), and a guide cutting component (16) on one side. A laser head assembly (17) is connected to one side of the inner wall of the cutting chamber (10). A laser generator (18) is connected to the top of the cutting chamber (10). An observation window (19) is provided at the top of the cutting chamber (10). A bridge frame (20) is connected to the top of the cutting chamber (10) above the observation window (19). An industrial camera (21) is connected to one side of the bridge frame (20). A feeding component (22) is connected to the top of the ceramic pad (2) at the tail of the plate conveyor belt (4). A control box (23) is connected to one side of the base frame (1).

2. The laser cutting device for mobile phone camera glass cover plate according to claim 1, characterized in that: A drive unit (7) is connected to one side of both the transverse mounting frame (5) and the longitudinal mounting frame (3). The two sets of drive units (7) are respectively connected to the corresponding plate conveyor belt (4) and displacement auxiliary belt (6). The drive unit (7) includes a fixed plate (71). A servo motor (72) is connected to one side of the fixed plate (71). A timing wheel (73) is connected to the output end of the servo motor (72) and the transmission roller in the corresponding displacement auxiliary belt (6) and plate conveyor belt (4). A timing belt (74) is sleeved between the timing wheels (73).

3. The laser cutting device for mobile phone camera glass cover plate according to claim 1, characterized in that: The plate conveyor belt (4) is composed of multiple sets of alumina and other ceramic plates interlocked together. The longitudinal mounting frame (3) is connected to the plate conveyor belt (4) with an air extraction chamber (9) on the inner side. An external vacuum pump is connected to one side of the air extraction chamber (9).

4. The laser cutting device for mobile phone camera glass cover plate according to claim 1, characterized in that: The adjustment assembly (13) includes an adjustment motor (131) and a guide rail (132) fixedly installed on the inner wall of the cutting chamber (10). A moving plate (133) is slidably installed on one side of the guide rail (132). A connecting kit (134) is connected to one side of the moving plate (133). A lead screw (135) is connected to the output end of the guide rail (132). The lead screw (135) is threadedly connected to the connecting kit (134). A clamping arm (136) is connected to both sides of the moving plate (133). The reflection assembly (14), the beam splitting assembly (15), and the guide cutting assembly (16) are connected to the corresponding clamping arm (136).

5. The laser cutting device for mobile phone camera glass cover plate according to claim 4, characterized in that: The reflective assembly (14) includes a connecting frame (141), and multiple sets of movable frames (142) are slidably arranged inside the connecting frame (141). Each movable frame (142) has a reflector group (143) connected to its top. A sliding hole is provided on one side of the connecting frame (141), and an adjusting bolt (144) is connected to one side of the movable frame (142) through the sliding hole. The beam splitting assembly (15) is located below the reflective assembly (14).

6. The laser cutting device for mobile phone camera glass cover plate according to claim 5, characterized in that: The beam splitting assembly (15) includes a second connecting frame (151), on both sides of the top of the second connecting frame (151) a beam splitter group (152) is connected and arranged, a guide frame (153) is slidably arranged between the beam splitter groups (152), and plugs (154) are connected and arranged on both sides of the guide frame (153). The plugs (154) are interference-fitted with the beam splitter group (152), and the guide cutting assembly (16) is located below the beam splitting assembly (15).

7. The laser cutting device for mobile phone camera glass cover plate according to claim 6, characterized in that: The guide cutting assembly (16) includes a connecting frame three (161), a receiving frame (162) is slidably arranged inside the connecting frame three (161), a steering mirror assembly (163) is connected to the top of the receiving frame (162), and a focusing lens (164) is connected to the bottom. The focusing lens (164) is located directly below the steering mirror assembly (163). A sliding hole two is opened on one side of the connecting frame three (161), and an adjusting bolt two (165) is connected to one side of the receiving frame (162) through the sliding hole two.

8. The laser cutting device for mobile phone camera glass cover plate according to claim 1, characterized in that: The displacement auxiliary belt (6) includes an adjustment belt (61), the top end of the adjustment belt (61) is provided with a cutting opening (62), the inner side of the adjustment belt (61) is provided with a pushing edge (63) below the cutting opening (62), and a guide wall (64) is provided on one side of the pushing edge (63).

9. A laser cutting device for mobile phone camera glass cover plates according to claim 1, characterized in that: The control box (23) includes a mounting base (231). A servo motor (232) and a support arm (233) are connected to the top of the mounting base (231). A receiving platform (234) is rotatably mounted on the top of the support arm (233). A timing wheel (235) is connected to the output end of the servo motor (232) and one end of the bottom shaft of the receiving platform (234). A timing belt (236) is sleeved between the timing wheels (235).

10. A laser cutting device for mobile phone camera glass cover plate according to claim 9, characterized in that: Two sets of infrared sensors (25) are connected to the top of the mounting base (231), and a driven arm (24) is connected to one side of the receiving platform (234).

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