Multi-station laser etching preparation with automatic feeding and discharging mechanism

Abstract

The utility model discloses a multi -position laser carving preparation with automatic feeding and discharging mechanism, including laser carving operation subassembly, feeding and discharging mechanical arm subassembly and material frame subassembly, laser carving operation subassembly includes laser carving machine, the top of laser carving machine is provided with two groups of laser carving operation station, and each group laser carving operation station includes the workstation board, the top one side of workstation board is provided with two groups of electric adjusting mechanism respectively, feeding and discharging mechanical arm subassembly includes the fixed leg of laser carving operation subassembly one side, the top of fixed leg is provided with mechanical arm, material frame subassembly includes the material frame of feeding and discharging mechanical arm subassembly one side. Through the setting of laser carving operation subassembly, feeding and discharging mechanical arm subassembly and material frame subassembly cooperation can carry out multi -position feeding and discharging laser carving operation to workpiece, has improved the stability and consistency of product quality, has greatly shortened the processing time to workpiece.

Description

Technical Field

[0001] This utility model relates to the field of laser engraving equipment technology, specifically to a multi-station laser engraving preparation method with an automatic loading and unloading mechanism. Background Technology

[0002] Laser engraving technology is widely used in modern manufacturing. It uses lasers to carve material surfaces, achieving high-precision and high-efficiency processing. Traditional laser engraving equipment mostly relies on manual loading and unloading, which is inefficient, labor-intensive, and prone to product quality inconsistencies due to human error. Furthermore, existing automated loading and unloading laser engraving equipment is often complex in structure, expensive, and suffers from poor coordination between multiple stations, hindering overall production efficiency. Therefore, we propose a multi-station laser engraving process with an automated loading and unloading mechanism. Utility Model Content

[0003] The purpose of this invention is to provide a multi-station laser engraving manufacturing process with an automatic loading and unloading mechanism to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: It includes a laser engraving assembly, a loading / unloading robotic arm assembly, and a material rack assembly. The laser engraving assembly includes a laser engraving machine. Two sets of laser engraving workstations are arranged above the laser engraving machine. Each set of laser engraving workstations includes a workstation plate. Two sets of electric adjustment mechanisms are respectively arranged on one side of the workstation plate. A mounting plate is arranged on one side of each set of electric adjustment mechanisms on the workstation plate. A drive motor is arranged on one side of the mounting plate. A lead screw is arranged at the output end of the drive motor. A movable push plate is arranged around the outer ring of the lead screw. A placement plate is arranged at the upper position on one side of the movable push plate. Multiple sets of guide strips are arranged on the lower side of the placement plate. Support columns are provided at each of the four corner positions. Laser engraving heads are provided at the two sets of laser engraving workstations on one side of the upper part of the laser engraving machine. A central control box is provided on one side of the laser engraving machine. The loading and unloading robotic arm assembly includes a fixed leg located on one side of the laser engraving work assembly. A robotic arm is provided above the fixed leg. An assembly plate is provided at the end of the robotic arm away from the fixed leg. Multiple sets of pneumatic suction nozzles are provided on the assembly plate. The material rack assembly includes a material rack located on one side of the loading and unloading robotic arm assembly. A manual adjustment mechanism is provided on one side of the bottom of the inner wall of the material rack. A movable material rack is provided above the manual adjustment mechanism. Fixed material racks are provided on both sides of the inner wall of the material rack. Casters are provided at each of the four corner positions below the material rack.

[0005] Preferably, the mounting end of the workstation plate is installed corresponding to the upper side of the laser engraving machine, the mounting end of the mounting plate is installed corresponding to the upper side of the workstation plate, the mounting end of the drive motor is installed corresponding to one side of the mounting plate, the mounting end of the lead screw passes through the mounting plate and is installed corresponding to the output end of the drive motor, the mounting end of the movable push plate is installed corresponding to the outer ring of the lead screw, the mounting end of the guide strip is installed corresponding to the lower side of the placement plate, the guide strip is installed corresponding to the inner walls of both ends of the movable push plate, and U-shaped grooves are provided on both sides of the placement plate, with the upper side of the movable push plate corresponding to the U-shaped grooves.

[0006] By adopting the above technical solution, the placement position of the workpiece placed on the placement plate can be adjusted.

[0007] Preferably, the two sets of laser engraving workstations are arranged symmetrically, and a baffle is provided between the two sets of laser engraving workstations on the laser engraving machine. Each set of placement plates is provided with a baffle strip. Multiple sets of displacement sensors are provided on one side below the placement plate. One set of electric adjustment mechanisms is arranged horizontally on the workstation plate, and the other set of electric adjustment mechanisms is arranged vertically on the workstation plate. The two sets of electric adjustment mechanisms are arranged in a plane perpendicular to each other on the workstation plate.

[0008] By adopting the above technical solution, the workpiece can be stably clamped in conjunction with the electric adjustment mechanism, thereby making the laser engraving operation of the workpiece more stable.

[0009] Preferably, the mounting end of the laser engraving head is installed corresponding to the upper side of the laser engraving machine, the laser engraving points of the two sets of laser engraving heads correspond to the positions of the two sets of electric adjustment mechanisms, the mounting end of the support column is installed corresponding to the upper side of the workstation plate, the top of the support column is installed corresponding to the lower side of the placement plate, and the mounting end of the central control box is installed corresponding to the side of the laser engraving machine.

[0010] By adopting the above technical solutions, multi-station laser engraving operations can be made more stable and synchronized.

[0011] Preferably, the mounting end of the robotic arm is installed corresponding to the top end of the fixed leg, the robotic arm can rotate in all directions, the mounting end of the assembly plate is installed corresponding to the top end of the robotic arm, the assembly plate has multiple sets of adjustment slots, and the mounting end of the pneumatic nozzle is installed corresponding to the adjustment slots.

[0012] By adopting the above technical solution, loading and unloading operations for workpieces of different specifications can be adapted.

[0013] Preferably, the material rack is arranged in a "C"-shaped open frame, the manual adjustment mechanism includes a base plate, the base plate is arranged in an "L" shape, a screw is arranged through the base plate, a handwheel is provided at one end of the screw, a slider is sleeved on the outer ring of the screw, guide rails are provided on both sides above the base plate, the two ends of the slider are installed corresponding to the guide rails, and the mounting end of the movable material rack is installed corresponding to the upper side of the slider;

[0014] By adopting the above technical solution, the workpiece to be laser-engraved can be transferred, improving work efficiency.

[0015] Preferably, the mounting end of the fixed material rack is installed corresponding to the inner side of the material rack, the mounting end of the movable wheel is installed corresponding to the four corner positions on the lower side of the material rack, and a push handle is provided on the side of the material rack away from the opening;

[0016] By adopting the above technical solution, it is easy for operators to adjust the position of the material rack and to move it.

[0017] Preferably, the mounting end of the central control box is installed corresponding to one side of the laser engraving machine, and the laser engraving head, electric adjustment mechanism, guide strip, robotic arm, pneumatic suction nozzle and displacement sensor are all electrically connected to the central control box;

[0018] By adopting the above technical solution, it is convenient for operators to adjust parameters according to different operational requirements of workpieces of different specifications.

[0019] Compared with the prior art, the beneficial effects of this application are:

[0020] This utility model features a rational overall structural design. The coordinated arrangement of the laser engraving assembly, the loading / unloading robotic arm assembly, and the material rack assembly enables multi-station laser engraving operations, significantly shortening processing time and improving overall production efficiency. The two sets of electric adjustment mechanisms in each laser engraving station ensure stable placement of workpieces of different specifications, maintaining consistent position and state during the laser engraving process, thus improving product quality stability and consistency. The robotic arm assembly facilitates loading and unloading of workpieces from the material rack assembly and laser engraving stations, adapting to different shapes and sizes and enhancing the equipment's versatility and applicability. The material rack assembly allows operators to neatly place and transport workpieces requiring laser engraving, further improving the loading / unloading efficiency of the robotic arm assembly and significantly reducing processing time. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a multi-station laser engraving manufacturing process with an automatic loading and unloading mechanism according to the present invention.

[0022] Figure 2 This is an exploded view of a partial area of ​​the laser engraving assembly with an automatic loading and unloading mechanism in a multi-station laser engraving process according to the present invention.

[0023] Figure 3 This is a schematic diagram of the structure of a multi-station laser engraving preparation robotic arm assembly with an automatic loading and unloading mechanism according to the present invention.

[0024] Figure 4 This is a partial structural cross-sectional view of a material rack assembly with an automatic loading and unloading mechanism in a multi-station laser engraving manufacturing process according to the present invention.

[0025] Figure 5 This is a schematic diagram of the structure of a placement plate in a multi-station laser engraving preparation process with an automatic loading and unloading mechanism according to this utility model.

[0026] In the diagram: 1. Laser engraving assembly; 11. Laser engraving machine; 12. Laser engraving station; 121. Station plate; 122. Electric adjustment mechanism; 1221. Mounting plate; 1222. Drive motor; 1223. Lead screw; 1224. Moving push plate; 123. Placement plate; 124. Guide bar; 125. Support column; 13. Laser engraving head; 14. Central control box; 2. Loading and unloading robotic arm assembly; 21. Fixed leg; 22. Robotic arm; 23. Assembly plate; 24. Pneumatic suction nozzle; 3. Material rack assembly; 31. Material rack; 32. Manual adjustment mechanism; 321. Base plate; 322. Screw; 323. Handwheel; 324. Slider; 325. Guide rail; 33. Movable material rack; 34. Fixed material rack; 35. Moving wheel; 36. Push handle; 4. U-shaped channel; 5. Baffle; 6. Stop bar; 7. Displacement 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, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-4This utility model provides a technical solution: including a laser engraving operation component 1, a loading and unloading robotic arm component 2, and a material rack component 3. The laser engraving operation component 1 includes a laser engraving machine 11, and two sets of laser engraving operation stations 12 are arranged above the laser engraving machine 11. The two sets of laser engraving operation stations 12 are arranged symmetrically, which facilitates the operator to perform multi-station laser engraving operations on the workpiece. A laser engraving head 13 is provided on one side of the upper part of the laser engraving machine 11, corresponding to the position of the two sets of laser engraving operation stations 12. The mounting end of the laser engraving head 13 is installed corresponding to the upper part of the laser engraving machine 11. The arrangement of the two sets of laser engraving heads 13, the two sets of laser engraving operation stations 12, and the laser engraving machine 11 in cooperation with each other can perform multi-station laser engraving operations on the workpiece.

[0029] Each laser engraving workstation 12 includes a workstation plate 121. The mounting end of the workstation plate 121 is installed corresponding to the upper side of the laser engraving machine 11 and is fixedly connected to the upper side of the laser engraving machine 11. A baffle 5 is provided between the two laser engraving workstations 12 on the laser engraving machine 11. The mounting end of the baffle 5 is fixedly connected to the laser engraving machine 11. The baffle 5 is set so that the two laser engraving workstations 12 can be moved closer to each other to block each other. Two sets of electric adjustment mechanisms 122 are respectively provided on the upper side of the workstation plate 121. The mounting end of the electric adjustment mechanism 122 is fixedly connected to the upper side of the workstation plate 121. The laser engraving points of the two sets of laser engraving heads 13 correspond to the positions of the two sets of electric adjustment mechanisms 122 respectively. Mounting plates 1221 are provided on one side of the workstation plate 121. The mounting end of the mounting plate 1221 is installed corresponding to the upper side of the workstation plate 121 and is fixedly connected to the upper side of one end of the workstation plate 121. A drive motor 1222 is provided on one side of the mounting plate 1221. The mounting end of the drive motor 1222 is installed corresponding to the side of the mounting plate 1221 and is fixedly connected to the side of the mounting plate 1221. A lead screw 1223 is provided at the output end of the drive motor 1222. The mounting end of the lead screw 1223 passes through the mounting plate 1221 and is installed corresponding to the output end of the drive motor 1222. One end of the lead screw 1223 is fixedly connected to the output end of the drive motor 1222. One end of the lead screw 1223 away from the drive motor 1222 is rotatably connected to a bearing on the workstation plate 121. A movable push plate 1224 is provided on the outer ring of the lead screw 1223. The mounting end of the movable push plate 1224 is installed corresponding to the outer ring of the lead screw 1223. A threaded hole is provided in the middle of the movable push plate 1224, which is threadedly connected to the lead screw 1223. The drive motor 1222, through the lead screw 1223, can guide the movable push plate 1224 to slide. Support columns 125 are provided at each of the four corners of the workstation plate 121. The mounting end of the support column 125 is installed corresponding to the upper side of the workstation plate 121, and the support columns 125 are fixedly connected to the workstation plate 121. The movable push plate 1224... A placement plate 123 is provided on one side of the upper part of the 224. The top of the supporting column 125 is installed correspondingly to the lower side of the placement plate 123. The top of the supporting column 125 is fixedly connected to the four corner positions of the placement plate 123. The supporting column 125 can provide stable support for the placement plate 123, thereby making the workpiece more stable when placed on the placement plate 123. Multiple sets of guide bars 124 are provided on the lower side of the placement plate 123. The mounting ends of the guide bars 124 are installed correspondingly to the lower side of the placement plate 123. The guide bars 124 are fixedly connected to the placement plate 123. The guide bars 124 are installed correspondingly to the inner walls of both ends of the movable push plate 1224. The movable push plate 1224 is slidably connected to the guide bars 124.U-shaped grooves 4 are provided on both sides of the placement plate 123. The upper side of the movable push plate 1224 is installed corresponding to the U-shaped groove 4, and the upper side of the movable push plate 1224 is slidably connected to the inner wall of the U-shaped groove 4. The cooperative arrangement of the movable push plate 1224 and the U-shaped groove 4 allows for the pushing and adjustment of the workpiece placed on the placement plate 123 according to its specifications. Each set of placement plates 123 is provided with a stop bar 6, the mounting end of which is fixedly connected to the placement plate 123. The cooperative arrangement of the stop bar 6 and the baffle 5 can block the side of the placement plate 123 away from the U-shaped groove 4, thereby facilitating the positioning and placement of workpieces of different specifications. Multiple sets of displacement sensors 7 are provided on the lower side of the placement plate 123. The mounting end of the displacement sensor 7 is fixedly connected to the placement plate 123. The displacement sensor 7 can monitor the moving distance of the movable push plate 1224 in real time, thereby better controlling the movement of the movable push plate. The 1224 mechanism, in conjunction with the stop bar 6 and the baffle 5, is adapted to stably clamp workpieces of different shapes and sizes. One set of electric adjustment mechanisms 122 is horizontally arranged on the workstation plate 121, and this horizontal arrangement works with the baffle 5 to clamp the workpiece from both sides. Another set of electric adjustment mechanisms 122 is vertically arranged on the workstation plate 121, and this vertical arrangement works with the stop bar 6 to clamp the other two sides of the workpiece. The two sets of electric adjustment mechanisms 122 are vertically aligned on the workstation plate 121. Through their interaction with the baffle 5 and the stop bar 6, these two sets of electric adjustment mechanisms stably clamp the workpieces placed on the workstation plate 121, ensuring that the position and state of each workpiece remain consistent during the laser engraving process, thereby improving the stability and consistency of product quality.

[0030] The material rack assembly 3 includes a material rack 31 located on one side of the loading / unloading robotic arm assembly 2. The material rack 31 is arranged in a "C"-shaped open frame. A manual adjustment mechanism 32 is provided on one side of the bottom inner wall of the material rack 31. The manual adjustment mechanism 32 includes a base plate 321, which is arranged in an "L" shape. The mounting end of the base plate 321 is fixedly connected to one side of the bottom inner wall of the material rack 31. A screw 322 is threaded through the base plate 321. Both ends of the screw 322 are rotatably connected to the bearings on the base plate 321. A handwheel 323 is provided at one end of the screw 322. The mounting end of the handwheel 323 is connected to the screw 322. One end of the screw 322 is fixedly connected to the outer ring of the screw 322, and a slider 324 is fitted on the outer ring of the screw 322. A shaft hole is opened at the middle position of the slider 324, and an internal thread is provided on the inner wall of the shaft hole. The screw 322 is threadedly connected to the slider 324 through the shaft hole. Guide rails 325 are provided on both sides of the base plate 321. The mounting end of the guide rail 325 is fixedly connected to the base plate 321. The two ends of the slider 324 are installed correspondingly to the guide rails 325. The lower side of the two ends of the slider 324 is slidably connected to the guide rails 325. A movable material rack 33 is provided above the manual adjustment mechanism 32. The movable material rack 33 is installed on the upper side of the manual adjustment mechanism 32. The mounting end of the movable material rack 33 is installed corresponding to the upper side of the slider 324. The mounting end of the movable material rack 33 is fixedly connected to the upper side of the slider 324. The manual adjustment mechanism 32 can drive the movable material rack 33 to move and adjust. Fixed material racks 34 are provided on both sides of the inner wall of the material rack 31. The mounting end of the fixed material rack 34 is installed corresponding to the inner side of the material rack 31 and is fixedly connected to the inner side of the material rack 31. Multiple sets of placement strips are provided on both the movable material rack 33 and the fixed material rack 34 at equal intervals. The movable material rack 33 and the two sets of fixed material racks 34 can cooperate with each other. The workpieces to be laser-engraved are placed neatly. The material rack 31 is equipped with four moving wheels 35 at the four corners below. The mounting ends of the moving wheels 35 are installed corresponding to the four corners on the lower side of the material rack 31. The mounting ends of the moving wheels 35 are fixedly connected to the material rack 31. The moving wheels 35 facilitate the operator to move the material rack 31. A pusher 36 is provided on the side of the material rack 31 away from the opening. The mounting ends of the pusher 36 are fixedly connected to the material rack 31. The pusher 36 facilitates the operator to push the material rack 31, thereby facilitating the operator to move and transfer the workpieces.

[0031] The loading / unloading robotic arm assembly 2 includes a fixed leg 21 located on one side of the laser engraving work assembly 1. The mounting end of the fixed leg 21 is fixedly installed on the ground corresponding to one side of the laser engraving work assembly 1. A robotic arm 22 is arranged above the fixed leg 21, and the mounting end of the robotic arm 22 is installed corresponding to the top of the fixed leg 21. The mounting end of the robotic arm 22 is fixedly connected to the top of the fixed leg 21. The fixed leg 21 allows for stable installation of the robotic arm 22 and also allows the height of the robotic arm 22 to be adapted to the laser engraving work station 12. The robotic arm 22 can rotate in all directions. The robotic arm 22 is a conventional omnidirectional robotic arm, so it will not be described in detail in this application. An assembly plate 23 is arranged on the end of the robotic arm 22 away from the fixed leg 21. The mounting end of the assembly plate 23 is installed corresponding to the top of the robotic arm 22. The assembly plate 23 is fixedly connected to the top of the robotic arm 22. It is equipped with multiple sets of pneumatic suction nozzles 24 and multiple sets of adjustment slots. The mounting ends of the pneumatic suction nozzles 24 are installed in accordance with the adjustment slots and are fastened to the back side of the assembly plate 23. The adjustment slots allow the pneumatic suction nozzles 24 to be adjusted according to the specifications of the workpiece, so as to better adapt and adsorb workpieces of different specifications. The loading and unloading robotic arm assembly 2 facilitates the loading and unloading of workpieces on the material rack assembly 3 and the laser engraving station 12, reducing the manual involvement in loading and unloading, reducing labor intensity, and also reducing labor costs. This reduces the impact of human factors on product quality and ensures that the position and state of each workpiece remain consistent during the laser engraving process, thereby improving the stability and consistency of product quality.

[0032] A central control box 14 is provided on one side of the laser engraving machine 11. The mounting end of the central control box 14 is installed corresponding to one side of the laser engraving machine 11 and is fixedly connected to the laser engraving machine 11. The laser engraving head 13, electric adjustment mechanism 122, guide bar 124, robotic arm 22, pneumatic suction nozzle 24 and displacement sensor 7 are all electrically connected to the central control box 14. The central control box 14 can intelligently control the laser engraving process and provide stable power to the electrical components in the process.

[0033] The implementation principle of this application is as follows: First, the operator adjusts the movable material rack 33 according to the specifications of the workpiece to be laser-engraved. The operator rotates the handwheel 323 to drive the screw 322 to rotate. The rotation of the screw 322 drives the movable material rack 33 to move and adjust along the guide rail 325 through the slider 324, so that the distance between the movable material rack 33 and the fixed material rack 34 is adapted to the workpiece to be laser-engraved. Then, the workpieces to be laser-engraved are placed one by one between the movable material rack 33 and the fixed material rack 34. The operator then pushes the material rack 31 to the position of the loading and unloading robotic arm assembly 2 using the pusher 36. Then, the operator adjusts the pneumatic suction nozzle 24 according to the specifications of the workpiece to be laser-engraved. The operator starts the robotic arm 22, pneumatic suction nozzle 24, drive motor 1222 and displacement sensor 7 through the central control box 14. 2. The operation is driven by the rotation of the pneumatic suction nozzle 24 to stably adsorb and feed the workpiece to be laser engraved on the material rack assembly 3. Then, the workpiece to be laser engraved is placed on the placement plate 123. At this time, the drive motor 1222 drives the moving push plate 1224 to slide along the guide bar 124 through the lead screw 1223. At this time, the upper side of the moving push plate 1224 pushes and clamps the workpiece to be laser engraved on the placement plate 123 through the U-shaped groove 4. At the same time, the displacement sensor 7 monitors the adjustment distance of the moving push plate 1224. At this time, the moving push plate 1224, the baffle 5 and the stop bar 6 cooperate with each other to stably clamp and position the workpiece to be laser engraved on the placement plate 123. At this time, the laser engraving head 13 is powered on and the two sets of laser engraving heads 13 begin to perform multi-station laser engraving operations on the two sets of workpieces to be laser engraved on the two sets of placement plates 123.

[0034] When the laser engraving operation is completed and the workpiece needs to be unloaded, the drive motor 1222 is controlled by the central control box 14 to drive the moving push plate 1224 back to its initial state, so that the moving push plate 1224 no longer clamps the workpiece. Then, the unloading robot arm assembly 2 removes the workpiece to complete the unloading operation.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] 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 multi-station laser engraving manufacturing process with an automatic loading and unloading mechanism, comprising a laser engraving operation component (1), a loading and unloading robotic arm component (2), and a material rack component (3), characterized in that: The laser engraving assembly (1) includes a laser engraving machine (11). Two sets of laser engraving workstations (12) are arranged above the laser engraving machine (11). Each set of laser engraving workstations (12) includes a workstation plate (121). Two sets of electric adjustment mechanisms (122) are respectively arranged on one side of the workstation plate (121). Each set of electric adjustment mechanisms (122) has a mounting plate (1221) on one side of the workstation plate (121). One side of the mounting plate (1221)... A drive motor (1222) is provided on the side, and a lead screw (1223) is provided at the output end of the drive motor (1222). A movable push plate (1224) is provided on the outer ring of the lead screw (1223). A placement plate (123) is provided on one side of the movable push plate (1224) at the upper position. Multiple sets of guide strips (124) are provided on the lower side of the placement plate (123). Support columns (125) are provided at the four corner positions on the workstation plate (121). The laser engraving machine (11) has laser engraving heads (13) installed on one side of the upper part corresponding to the positions of two sets of laser engraving work stations (12). A central control box (14) is installed on one side of the laser engraving machine (11). The loading and unloading robotic arm assembly (2) includes a fixed leg (21) located on one side of the laser engraving work assembly (1). A robotic arm (22) is installed above the fixed leg (21). An assembly plate (23) is installed on the end of the robotic arm (22) away from the fixed leg (21). (23) is provided with multiple sets of pneumatic suction nozzles (24). The material rack assembly (3) includes a material rack (31) located on one side of the loading and unloading robotic arm assembly (2). A manual adjustment mechanism (32) is provided on one side of the bottom of the inner wall of the material rack (31). A movable material rack (33) is provided above the manual adjustment mechanism (32). Fixed material racks (34) are provided on both sides of the inner wall of the material rack (31). Moving wheels (35) are provided at the four corners of the bottom of the material rack (31).

2. The multi-station laser engraving process with an automatic loading and unloading mechanism according to claim 1, characterized in that: The mounting end of the workstation plate (121) is installed corresponding to the upper side of the laser engraving machine (11). The mounting end of the mounting plate (1221) is installed corresponding to the upper side of the workstation plate (121). The mounting end of the drive motor (1222) is installed corresponding to one side of the mounting plate (1221). The mounting end of the lead screw (1223) passes through the mounting plate (1221) and is installed corresponding to the output end of the drive motor (1222). The mounting end of the movable push plate (1224) is installed corresponding to the outer ring of the lead screw (1223). The mounting end of the guide strip (124) is installed corresponding to the lower side of the placement plate (123). The guide strip (124) is installed corresponding to the inner walls of both ends of the movable push plate (1224). U-shaped grooves (4) are provided on both sides of the placement plate (123). The upper side of the movable push plate (1224) is installed corresponding to the U-shaped grooves (4).

3. The multi-station laser engraving process with an automatic loading and unloading mechanism according to claim 1, characterized in that: The two sets of laser engraving workstations (12) are arranged symmetrically. A baffle (5) is provided between the two sets of laser engraving workstations (12) on the laser engraving machine (11). A baffle (6) is provided on each set of placement plates (123). Multiple sets of displacement sensors (7) are provided on one side below the placement plate (123). One set of electric adjustment mechanisms (122) is arranged horizontally on the workstation plate (121), and the other set of electric adjustment mechanisms (122) is arranged vertically on the workstation plate (121). The two sets of electric adjustment mechanisms (122) are arranged vertically on the workstation plate (121).

4. The multi-station laser engraving process with an automatic loading and unloading mechanism according to claim 1, characterized in that: The mounting end of the laser engraving head (13) is installed corresponding to the upper side of the laser engraving machine (11). The laser engraving points of the two sets of laser engraving heads (13) correspond to the positions of the two sets of electric adjustment mechanisms (122). The mounting end of the support column (125) is installed corresponding to the upper side of the workstation plate (121). The top of the support column (125) is installed corresponding to the lower side of the placement plate (123). The mounting end of the central control box (14) is installed corresponding to one side of the laser engraving machine (11).

5. A multi-station laser engraving process with an automatic loading and unloading mechanism according to claim 1, characterized in that: The mounting end of the robotic arm (22) is installed corresponding to the top of the fixed leg (21). The robotic arm (22) can rotate in all directions. The mounting end of the assembly plate (23) is installed corresponding to the top of the robotic arm (22). Multiple sets of adjustment slots are provided on the assembly plate (23). The mounting end of the pneumatic nozzle (24) is installed corresponding to the adjustment slots.

6. A multi-station laser engraving process with an automatic loading and unloading mechanism according to claim 1, characterized in that: The material rack (31) is arranged in a "C"-shaped open frame. The manual adjustment mechanism (32) includes a base plate (321), which is arranged in an "L" shape. A screw (322) is arranged through the base plate (321). A handwheel (323) is provided at one end of the screw (322). A slider (324) is sleeved on the outer ring of the screw (322). Guide rails (325) are provided on both sides above the base plate (321). The two ends of the slider (324) are installed corresponding to the guide rails (325). The mounting end of the movable material rack (33) is installed corresponding to the upper side of the slider (324).

7. A multi-station laser engraving process with an automatic loading and unloading mechanism according to claim 1, characterized in that: The mounting end of the fixed material rack (34) is installed corresponding to the inner side of the material rack (31), the mounting end of the movable wheel (35) is installed corresponding to the four corner positions on the lower side of the material rack (31), and a pusher (36) is provided on the side of the material rack (31) away from the opening.

8. A multi-station laser engraving process with an automatic loading and unloading mechanism according to claim 1, characterized in that: The mounting end of the central control box (14) is installed corresponding to one side of the laser engraving machine (11). The laser engraving head (13), electric adjustment mechanism (122), guide bar (124), robotic arm (22), pneumatic suction nozzle (24) and displacement sensor (7) are all electrically connected to the central control box (14).

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