A flat automatic laser engraving device

Abstract

The utility model belongs to the field of laser carving technology, especially relates to a flat plate automatic laser carving equipment. A kind of flat plate automatic laser carving equipment, transfer module, feeding and discharging module, laser module and positioning jig, transfer module includes rack and conveyor belt assembly;Feeding and discharging module includes manipulator, the end of the two groups of vacuum chuck assemblies of fixed setting in the manipulator;Laser module includes the machine table being set in the side of feeding and discharging module, the laser machine being set on the machine table;Positioning jig is set on the machine table below the head of laser machine and it includes limiting block and the positioning cylinder being set opposite to the limiting block;The feeding and discharging module can transfer the product to be processed on the transfer module to positioning jig and can transfer the processed product in the positioning jig to feeding and discharging module.The quality consistency of the utility model's laser carving, production efficiency and production yield are high, and can meet the demand of large-scale batch production.

Description

Technical Field

[0001] This utility model belongs to the field of laser engraving technology, and in particular relates to an automatic laser engraving device for flat panels. Background Technology

[0002] In the manufacturing process of metal casings for products such as laptops and tablets, laser engraving of the logo is a crucial visual identification process, currently predominantly performed manually. In this existing technology, operators must manually place the product on the laser engraving machine's worktable, complete the engraving, and then manually remove it; the entire process relies on manual labor.

[0003] For example, Chinese utility model patent CN221435316U discloses an automatic laser engraving machine for tablet computer accessories, including a housing with legs installed on both sides of the bottom of the housing, a worktable installed on the top of the housing, a display screen installed on the top of the control board, a bracket installed on the top of the worktable, a connecting rod installed on one side of the bracket, and a lifting structure installed inside the bracket. This utility model utilizes a threaded rod installed on the top of the worktable, which, together with a screwing block, forms a threaded connection. The screwing block can rotate, causing it to rise and fall along the threaded rod. This movement of the screwing block, in turn, causes a limiting plate to rise and fall, clamping the computer accessory between the limiting plate and the worktable. The limiting plate effectively restricts the movement of the computer accessory, and the anti-slip texture enhances the friction of the limiting plate. A guide rod passes through the limiting plate, guiding it and thus achieving the purpose of facilitating the limiting of the accessory in the automatic laser engraving machine for tablet computer accessories.

[0004] In existing technologies, laptops, tablets, and other metal casings are manually placed into a fixture used with laser engraving equipment. After positioning and securing the product, the laser engraving equipment performs the engraving, and the product is then manually removed. This process is susceptible to fluctuations in laser engraving yield due to factors such as human fatigue, mood, and skill level, making it difficult to guarantee consistent logo quality. Furthermore, manual operation is inefficient and cannot meet the demands of large-scale, mass production. With large order volumes, this often leads to extended production cycles and delivery delays, hindering companies' capacity expansion and market competitiveness. Utility Model Content

[0005] To address the technical problems of low efficiency, unstable yield, and difficulty in meeting the needs of mass production in existing manual laser engraving operations, this application provides a flatbed automatic laser engraving equipment with high quality consistency, high production efficiency and yield, and the ability to meet the needs of large-scale mass production.

[0006] To achieve the above objectives, this utility model provides the following technical solution: An automatic laser engraving device for flat panels, comprising: Transfer module: includes a frame and a conveyor belt assembly mounted on the frame; Loading and unloading module: includes a robotic arm disposed on one side of the transfer module and two sets of vacuum suction cup assemblies fixedly disposed at the end of the robotic arm; Laser module: including a machine base set on the side of the loading and unloading module, and a laser machine set on the machine base; Positioning fixture: disposed on the machine platform below the head of the laser machine and including a limiting block and a positioning cylinder disposed opposite to the limiting block; The loading and unloading module can transfer the products to be processed on the transfer module to the positioning fixture, and can also transfer the processed products in the positioning fixture to the loading and unloading module.

[0007] Preferably, a material-stopping assembly is provided on the frame of the transfer module. The material-stopping assembly includes a baffle horizontally fixedly connected to the frame above the conveyor belt assembly, two guide blocks fixedly connected to the end face of the baffle near the product receiving side, a mounting bracket fixedly connected to the frame on one side of the guide block, and a photoelectric sensor fixedly connected to the mounting bracket. The photoelectric sensor is electrically connected to a controller. The product can be conveyed by the conveyor belt assembly between the two guide blocks and stopped by the baffle.

[0008] Preferably, two sets of waist-shaped connecting through holes are provided on the baffle along its length direction. Each set of connecting through holes is arranged parallel to each other vertically. Fastening bolts are inserted into the connecting through holes and threaded into the guide block to fix the guide block to the baffle.

[0009] Preferably, a guide notch is provided on the opposite end faces of the two guide blocks facing the material feeding direction. The product to be processed enters between the two guide blocks through the guide notch and is stopped by the baffle.

[0010] Preferably, a flange is fixedly connected to the rotating end of the robot, and a fixing plate is horizontally fixedly connected to the lower end of the flange. Two sets of vacuum suction cup assemblies are arranged in parallel on the fixing plate. Each set of vacuum suction cup assemblies includes two parallel mounting plates, two sets of suction nozzles fixedly connected to the mounting plates, and a vacuum generating assembly connected to the suction nozzles.

[0011] Preferably, an oblong adjustment through hole is provided on the mounting plate along its length, one set of the suction nozzles is fixedly connected to the end of the mounting plate and another set of the suction nozzles is fixedly connected in the adjustment through hole.

[0012] Preferably, a reinforcing plate is fixedly connected to the two mounting plates in each group.

[0013] Preferably, a connecting block is provided below each of the mounting plates, and a boss extends upward from the upper end of the connecting block. The boss is embedded in the adjustment through hole, and an adjustment bolt passes through the reinforcing plate and is threaded into the boss to fix the reinforcing plate and the connecting block to the mounting plate.

[0014] Preferably, the positioning fixture further includes a support plate fixedly connected to the upper surface of the machine platform, two sets of limiting blocks are arranged perpendicularly to each other on the support plate, a positioning cylinder is arranged opposite to each set of limiting blocks, a push plate is fixedly connected to the telescopic rod of the positioning cylinder, and a buffer pad is fixedly connected to the inner end face of the push plate.

[0015] Preferably, a photoelectric switch is embedded in the support plate, a pad is fixedly connected to the upper surface of the support plate, a pad through hole is opened on the pad, and the photoelectric switch is disposed in the support plate below the pad through hole.

[0016] Compared with the prior art, the beneficial effects of this utility model are: This utility model integrates a transfer module, a loading / unloading module, a positioning fixture, and a laser engraving module into a complete automated operation process. The loading / unloading module uses a dual vacuum suction cup assembly controlled by a robotic arm to improve material handling efficiency. Combined with the continuous operation of the production line, this significantly enhances the production efficiency of the entire laser engraving process, effectively shortening the production cycle and meeting customer requirements for product delivery time. The material handling mechanism, with its baffle and photoelectric sensors, precisely controls product flow. The positioning fixture uses cylinders to clamp the product, achieving accurate positioning. This automated line effectively solves the instability of manual operation, improves the consistency and yield of laser-engraved logos, increases production efficiency, meets the needs of large-scale mass production, and enhances the company's competitiveness in the market. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention in its working state.

[0018] Figure 2 This is a top view of the structure of the present invention in its working state.

[0019] Figure 3 This is a schematic diagram of the loading and unloading module according to an embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of the material blocking assembly according to an embodiment of the present utility model.

[0021] Figure 5 This is a schematic diagram of the structure of the laser module according to an embodiment of the present invention.

[0022] Figure 6This is a schematic diagram of the positioning fixture according to an embodiment of the present utility model.

[0023] Figure 7 This is a schematic diagram of the loading and unloading module according to an embodiment of the present invention.

[0024] Figure 8 This is a schematic diagram of the structure of the vacuum suction cup assembly according to an embodiment of the present invention.

[0025] Figure 9 This is an exploded structural diagram of the vacuum suction cup assembly according to an embodiment of the present invention.

[0026] In the diagram: 1. Transfer module; 11. Frame; 111. Support leg; 112. Drive belt fixing frame; 12. Conveyor belt. 2. Loading and unloading module; 21. Loading section; 22. Unloading section; 23. Robotic arm; 24. Vacuum suction cup assembly; 241. Mounting plate; 242. Suction nozzle; 243. Adjustment through hole; 25. Flange cylinder; 26. Fixing plate; 27. Reinforcing plate; 28. Connecting block; 281. Boss; 29. ​​Adjusting bolt. 3. Laser module; 31. Machine base; 32. Laser machine; 321. Machine head. 4. Positioning fixture; 41. Limiting block; 42. Positioning cylinder; 43. Support plate; 431. Positioning cavity; 44. Push plate; 45. Buffer pad; 46. Pad plate; 461. Pad plate through hole; 47. Photoelectric switch. 5. Products awaiting processing 6. Processed products, 7. Material stop assembly; 71. Baffle; 711. Connecting through hole; 72. Guide block; 721. Guide notch; 73. Mounting bracket; 74. Photoelectric sensor. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0028] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Example

[0029] See appendix Figure 1 , 2 As shown, an automatic laser engraving device for flat panels includes a transfer module 1, a loading / unloading module 2, a laser module 3, and a positioning fixture 4. The transfer module 1 is used to transport the product to be processed 5 and the processed product 6. The loading / unloading module 2 is used to transfer the product to be processed 5 from the transfer module 1 to the positioning fixture 4 and to transfer the processed product 6 from the positioning fixture 4 back to the transfer module 1. The positioning fixture 4 is used to position and fix the product to be processed 5. The laser module 3 is used to perform laser engraving operations on the positioned and fixed product to be processed 5 (such as laser engraving the logo on a tablet or laptop shell). Furthermore, this invention also includes a blocking component 7, which blocks the product to be processed 5 transported by the transfer module 1, facilitating the transfer of the product to be processed 5 by the loading / unloading module 2. Additionally, by setting the blocking component 7, the loading / unloading module 2 can also be divided into a loading section 21 and a unloading section 22. The loading section 21 is used to transport the product to be processed 5, and the unloading section 22 is used to transport the processed product 6.

[0030] See Figure 3 As shown, the transfer module 1 includes a frame 11 made of profiles and a conveyor belt assembly mounted on the frame 11. The frame 11 specifically includes multiple support legs 111 and a transmission belt fixing frame 112 horizontally fixedly connected to the support legs 111. The conveyor belt assembly is prior art, which includes a conveyor belt 12 driven by a drive motor (not shown in the figure). The product to be processed 5 and the processed product 6 are driven forward by the conveyor belt 12.

[0031] See Figure 4 As shown, a baffle assembly 7 is provided on the transmission belt fixing frame 112 of the transfer module. The baffle assembly 7 includes a baffle 71 that is horizontally fixed to the transmission belt fixing frame 112 above the transmission belt 12 of the transmission belt assembly by bolts, two guide blocks 72 that are fixedly connected to the end face of the baffle 71 facing the side of the product 5 to be processed, a mounting bracket 73 that is fixedly connected to the transmission belt fixing frame 112 on one side of the guide block 72 by bolts, and a photoelectric sensor 74 that is fixedly connected to the mounting bracket 73. The photoelectric sensor 74 is electrically connected to a controller (not shown in the drawing). The controller can be an existing PLC controller.

[0032] Specifically, two guide blocks 72 are arranged opposite each other. In order to facilitate the product to be processed 5 to enter between the two guide blocks 72 and be blocked by the baffle 71, thereby positioning the product to be processed 5 so that the loading and unloading module 2 can pick up the material. A guide notch 721 is provided on the opposite end face of the two guide blocks 72 facing the material direction. The product to be processed 5 is conveyed by the conveyor belt 12 and enters between the two guide blocks 72 through the guide notch 721 and is stopped by the baffle 71. When the product to be processed 5 is stopped between the two guide blocks 72, the photoelectric sensor 74 is triggered and transmits the signal to the controller. The controller controls the loading and unloading module 2 to pick up the stopped product to be processed 5.

[0033] Furthermore, in order to facilitate the adjustment of the distance between the two guide blocks 72 and thus adapt to different sizes of products to be processed 5, such as tablet shells and notebook shells, in this embodiment, two sets of waist-shaped connecting through holes 711 are provided on the baffle 71 along its length direction. Each set of connecting through holes 711 has two holes and is arranged vertically and horizontally. Fastening bolts (not shown in the figure) are inserted into the connecting through holes 711 and threaded into the guide blocks 72 to fix the guide blocks 72 to the baffle 71.

[0034] join Figure 5 As shown, the laser module 3 includes a machine base 31 disposed on the side of the loading and unloading module 2, and an existing laser machine 32 fixedly mounted on the machine base 31. The positioning fixture 4 is disposed on the machine base 31 below the head 321 of the laser machine 32 and includes a limit block 41 and a positioning cylinder 42 disposed opposite to the limit block 41.

[0035] See Figure 6 As shown, specifically, the positioning fixture 4 includes a support plate 43 horizontally fixedly connected to the upper end face of the machine base 31. Two sets of limiting blocks 41 are perpendicularly arranged on the support plate 43, with two blocks in each set arranged in parallel. Each set of limiting blocks 41 has a corresponding positioning cylinder 42 positioned opposite to it, and both positioning cylinders 42 are fixedly connected to the support plate 43. A push plate 44 is vertically fixedly connected to the telescopic rod of the positioning cylinder 42, and an elastic buffer pad 45 is fixedly connected to the inner end face of the push plate 44.

[0036] Thus, the area between the two sets of limiting blocks 41 and the buffer pads 45 on the two positioning cylinders 42 forms a positioning cavity 431. The loading and unloading module 2 places the product to be processed 5 into the positioning cavity 431. The telescopic rods of the two positioning cylinders 42 extend, thereby driving the buffer pads 45 to move toward the corresponding limiting blocks 41, so that the four sides of the product to be processed 5 abut against the inner end faces of the corresponding limiting blocks 41 and buffer pads 45, thereby completing the positioning and fixing of the product to be processed 5.

[0037] Furthermore, a pad 46 is bolted to the upper surface of the support plate 43. When the inner cavity of the product to be processed 5 is placed on the pad 46, the inner cavity end face of the product to be processed 5 abuts against the upper surface of the pad 46, preventing the product to be processed 5 from being deformed by pressure. To achieve automated detection of whether there is material in the positioning cavity 431, a pad through hole 461 is provided on the pad 46. A photoelectric switch 47 is embedded in the support plate directly below the pad through hole 461. The photoelectric switch 47 can be an existing Omron E3T-FL12 type photoelectric switch. The photoelectric switch 47 is electrically connected to the controller. When there is material in the positioning cavity 431, the photoelectric switch 47 is blocked; when there is no material in the positioning cavity 431, the photoelectric switch 47 is not blocked.

[0038] See Figure 7 As shown, the loading / unloading module 2 includes a robotic arm 23 mounted on one side of the transfer module 1, and two sets of vacuum suction cup assemblies 24 fixedly mounted at the end of the robotic arm 23. The robotic arm 23 is existing technology; for example, the existing Detaida LR Mate200ID industrial robot can be used. The end of the robotic arm 23 is rotatable. A flange cylinder 25 is bolted to the rotating end of the robotic arm 23. A fixing plate 26 is horizontally fixed to the lower end of the flange cylinder 25. Two sets of vacuum suction cup assemblies 24 are arranged parallel to each other on both ends of the fixing plate 26. The two sets of vacuum suction cup assemblies 24 can be used for loading materials into the positioning fixture 4 and unloading materials from the positioning fixture 4, respectively.

[0039] See Figure 8 As shown, each vacuum suction cup assembly 24 includes two parallel mounting plates 241. The mounting plates 241 can be vertically fixed to the plate 26. Two sets of existing suction nozzles 242, arranged front and rear, are fixedly connected to the mounting plates 241. In addition, it should be noted that a necessary existing vacuum generating assembly (not shown in the figure) is also provided to connect to the suction nozzles 242. The vacuum generating assembly is prior art, and includes necessary structures such as a gas source, vacuum generator, solenoid valve, and gas path.

[0040] In order to reasonably set the installation positions of the two sets of suction nozzles 242 according to the size of the product to be processed 5, so that the product to be processed 5 is subjected to uniform force and the product to be processed 5 is not easy to fall off the suction nozzles 242 during adsorption, in this embodiment, a waist-shaped adjustment through hole 243 is provided on the mounting plate 241 along its length direction. One set of suction nozzles 242 is fixedly connected to the end of the mounting plate 241 away from the fixed plate 26 and the other set of suction nozzles 242 is fixedly connected in the adjustment through hole 243.

[0041] See Figure 9As shown, to improve the connection stability between the two mounting plates 241 and the fixed plate 26, a reinforcing plate 27 is fixedly connected to each of the two mounting plates 241 in each group. A connecting block 28 is provided below each mounting plate 241, and a boss 281 matching the adjustment through hole 243 is formed on the upper end surface of the connecting block 28. The boss 281 is embedded in the adjustment through hole 243, and the adjusting bolt 29 passes through the reinforcing plate 27 and is threaded into the boss 281 to fix both ends of the reinforcing plate 27 and the connecting block 28 to the mounting plate 27.

[0042] The working principle and process of this embodiment are as follows: like Figure 1 , 2 As shown, in order to improve the processing efficiency of the product 5 to be processed, in this embodiment, a set of transfer modules 1 is set in the middle, and a set of loading and unloading modules 2 are set on both sides of the transfer modules 1. Multiple sets of laser modules 3 and positioning fixtures 4 are set on both sides of each set of loading and unloading modules 2. For example, a set of laser modules 3 and positioning fixtures 4 are set on one side of each set of loading and unloading modules 2, and two sets of laser modules 3 and positioning fixtures 4 are set side by side on the other side of each set of loading and unloading modules 2. This specification describes the working process of one side of the transfer module 1, and the working process of the other side is the same.

[0043] 1. The product 5 to be processed is driven forward by the conveyor belt 12. It enters between the two guide blocks 72 and is stopped by the baffle 71. The photoelectric sensor 74 is triggered, the conveyor belt 12 stops rotating, and the controller controls the robot arm 23 to drive the suction nozzle 242 of a set of vacuum suction cup assembly 24 to suck up the stopped product 5. After that, the conveyor belt 12 continues to drive the product 5 to be processed forward so that the next product 5 to be processed is stopped by the baffle 71. 2. During initial operation, since there is no product 5 to be processed on the positioning fixture 4, the robot arm 23 drives the suction nozzle 242 of a set of vacuum suction cup assemblies 24 to place the stopped product 5 directly into the positioning cavity 431 on the corresponding machine 31. After continuous operation, the photoelectric switch 47 determines whether there is material in the positioning cavity 431. When there is a processed product 6 in the positioning cavity 431, the robot arm 23 drives the suction nozzle 242 of a set of vacuum suction cup assemblies 24 to pick up the stopped product 5 and transfer it to the vicinity of the corresponding positioning fixture 4. First, the robot arm 23 drives the suction nozzle 242 of another set of vacuum suction cup assemblies 24 to remove the processed product 6 from the positioning cavity 431. Then, the robot arm 23 drives the suction nozzle 242 to place the unprocessed product 5 into the positioning cavity 431. After that, the processed product 6 is transferred by the robot arm to the unloading section 12 of the conveyor belt 12 and conveyed forward. One set of robots 23 performs loading and unloading operations on the three sets of laser modules 3 and the positioning fixture 4 respectively. 3. When the product to be processed 5 is not positioned, the telescopic rod of the positioning cylinder 42 is in the retracted state. When the robot arm 23 places the product to be processed 5 into the positioning cavity 431, the telescopic rod of the positioning cylinder 42 extends, thereby completing the positioning and fixing of the product to be processed 5. Then, the controller controls the laser machine 32 to start, and performs laser processing on the corresponding position of the product to be processed 5 through the laser head 321. After the product laser processing is completed, the telescopic rod of the positioning cylinder 42 is retracted again, so that the robot arm 23 can drive the suction nozzle 242 to unload the processed product 6.

[0044] Repeat the above process to achieve automated laser processing and loading / unloading of products in an assembly line manner.

[0045] It should be noted that the connection and control principle between the controller and components such as the transfer module 1, loading and unloading module 2, laser module 3, positioning fixture 4 and stop assembly 7 are existing technologies, as long as the above process can be achieved; in addition, there are necessary components such as solenoid valves and air sources that cooperate with the positioning cylinder 42, which are all existing technologies and will not be described in detail here.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flatbed automatic laser engraving machine, characterized in that: include: Transfer module: includes a frame and a conveyor belt assembly mounted on the frame; Loading and unloading module: includes a robotic arm disposed on one side of the transfer module and two sets of vacuum suction cup assemblies fixedly disposed at the end of the robotic arm; Laser module: including a machine base set on the side of the loading and unloading module, and a laser machine set on the machine base; Positioning fixture: disposed on the machine platform below the head of the laser machine and including a limiting block and a positioning cylinder disposed opposite to the limiting block; The loading and unloading module can transfer the products to be processed on the transfer module to the positioning fixture, and can also transfer the processed products in the positioning fixture to the loading and unloading module.

2. The automatic laser engraving equipment for flat panels according to claim 1, characterized in that: A material blocking assembly is provided on the frame of the transfer module. The material blocking assembly includes a baffle plate horizontally fixedly connected to the frame above the conveyor belt assembly, two guide blocks fixedly connected to the end face of the baffle plate near the side of the product to be processed, a mounting bracket fixedly connected to the frame on one side of the guide block, and a photoelectric sensor fixedly connected to the mounting bracket. The photoelectric sensor is electrically connected to a controller. The product can be conveyed by the conveyor belt assembly to the space between the two guide blocks and stopped by the baffle plate.

3. The automatic laser engraving equipment for flat panels according to claim 2, characterized in that: Two sets of waist-shaped connecting through holes are provided along the length of the baffle. Each set of connecting through holes is arranged parallel to each other vertically. Fastening bolts are inserted into the connecting through holes and threaded into the guide block to fix the guide block to the baffle.

4. The automatic laser engraving equipment for flat panels according to claim 2, characterized in that: A guide notch is provided on the opposite end face of the two guide blocks facing the material feeding direction. The product to be processed enters between the two guide blocks through the guide notch and is stopped by the baffle.

5. The automatic laser engraving equipment for flat panels according to claim 1, characterized in that: A flange cylinder is fixedly connected to the rotating end of the robot arm, and a fixing plate is horizontally fixedly connected to the lower end of the flange cylinder. Two sets of vacuum suction cup assemblies are arranged in parallel on the fixing plate. Each set of vacuum suction cup assemblies includes two parallel mounting plates, two sets of suction nozzles fixedly connected to the mounting plates, and a vacuum generating assembly connected to the suction nozzles.

6. The automatic laser engraving equipment for flat panels according to claim 5, characterized in that: An oblong adjustment through hole is provided along the length of the mounting plate. One set of the suction nozzles is fixedly connected to the end of the mounting plate, and another set of the suction nozzles is fixedly connected inside the adjustment through hole.

7. The automatic laser engraving equipment for flat panels according to claim 5, characterized in that: A reinforcing plate is fixedly connected to the two mounting plates in each group.

8. The automatic laser engraving equipment for flat panels according to claim 7, characterized in that: A connecting block is provided below each of the mounting plates. A boss extends upward from the upper end of the connecting block and is embedded in the adjustment through hole. An adjustment bolt passes through the reinforcing plate and is threaded into the boss to fix the reinforcing plate and the connecting block to the mounting plate.

9. The automatic laser engraving equipment for flat panels according to claim 1, characterized in that: The positioning fixture also includes a support plate fixedly connected to the upper surface of the machine platform. Two sets of limiting blocks are arranged perpendicularly to each other on the support plate. A positioning cylinder is arranged opposite to each set of limiting blocks. A push plate is fixedly connected to the telescopic rod of the positioning cylinder. A buffer pad is fixedly connected to the inner end face of the push plate.

10. The automatic laser engraving equipment for flat panels according to claim 9, characterized in that: A photoelectric switch is embedded in the support plate, a pad is fixedly connected to the upper surface of the support plate, a pad through hole is opened on the pad, and the photoelectric switch is located in the support plate below the pad through hole.

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