Laser cutting mechanism for plastic part machining

Abstract

The invention relates to the technical field of plastic part machining, in particular to a laser cutting mechanism for plastic part machining, which comprises a base, and two groups of vertical plates I and two groups of vertical plates II which are fixedly connected to the top of the base, and a feeding plate I and a feeding plate II are arranged between the tops of the two groups of vertical plates I; clamping assemblies for self-adaptive scratch-proof fixing of plastic parts are arranged at the tops of the first feeding plate and the second feeding plate correspondingly, each clamping assembly comprises a material placing base, and an L-shaped clamping plate and a special-shaped clamping plate are arranged at the opposite angles of the top of each material placing base correspondingly; plastic parts are supported in a surface type anti-skid mode through the material placing base, and the falling risk in the conveying process is avoided; then multi-point type rolling supporting is automatically switched in a cutting area, the positioning and moving smoothness of the plastic part is improved, and surface scratching is avoided; and then the linkage special-shaped clamping plate and the L-shaped clamping plate are cooperatively matched, so that four-side precise positioning of the plastic parts with different sizes is automatically realized, and the laser cutting precision and the product yield are improved.

Description

Technical Field

[0001] This invention relates to the field of plastic parts processing technology, and in particular to a laser cutting mechanism for processing plastic parts. Background Technology

[0002] Plastics are a class of polymeric compounds formed by polymerization of monomers through addition or condensation reactions. They possess outstanding properties such as light weight, corrosion resistance, and excellent moldability. Their resistance to deformation is between that of fibers and rubber, classifying them as medium-strength materials. In the manufacturing process of plastic parts, laser cutting has become a core processing method for key steps such as contour cutting and hole machining due to its advantages of high cutting precision and smooth cut edges. Therefore, specialized laser cutting mechanisms are required to achieve precise processing of plastic parts.

[0003] Existing laser cutting equipment for plastic parts has a single workstation, with only an independent cutting station. The loading and cutting processes are sequential, and the cutting device is idle during loading. During the cutting process, it is necessary to wait for the previous workpiece to be completed before the next workpiece can be loaded. There is a significant interruption in the process connection, which leads to a longer workpiece turnaround time and greatly limits the processing efficiency during mass production, making it difficult to meet the needs of large-scale production. In addition, the adaptability and protection of the positioning and clamping mechanism are poor. For plastic parts with different length and width dimensions, it is necessary to manually disassemble and reassemble the fixture or repeatedly calibrate the clamping parameters. The operation is cumbersome and time-consuming, and the friction during positioning and movement can easily cause scratches on the surface of high-gloss plastic parts.

[0004] To address the aforementioned technical deficiencies, a solution is proposed: first, a surface-mounted anti-slip support is provided for the plastic parts via a material placement seat to avoid the risk of them falling during transport; then, a multi-point rolling support is automatically switched in the cutting area to improve the smoothness of the plastic parts' positioning and movement and prevent surface scratches; subsequently, the irregularly shaped clamping plate and the L-shaped clamping plate work together to automatically achieve precise positioning of plastic parts of different sizes on all four sides, improving laser cutting accuracy and product yield. Summary of the Invention

[0005] The purpose of this invention is to provide a laser cutting mechanism for processing plastic parts, in order to solve the aforementioned technical defects.

[0006] The objective of this invention can be achieved through the following technical solution: A laser cutting mechanism for processing plastic parts includes a base, and two sets of vertical plates 1 and 2 sets of vertical plates 2 fixedly connected to the top of the base. A loading plate 1 and a loading plate 2 are arranged between the tops of the two sets of vertical plates 1, and the tops of the loading plate 1 and the loading plate 2 are each provided with a clamping assembly for self-adaptive anti-scratch fixing of the plastic parts. The clamping assembly includes a material placement seat, and an L-shaped clamping plate and an irregular clamping plate are respectively arranged at the diagonal top of the material placement seat. The bottom of the material placement seat has a movable cavity, and a movable plate is slidably connected inside the movable cavity. Multiple universal ball bearings are installed on the top of the movable plate, and a clearance groove is opened through the top of the movable cavity for the corresponding universal ball bearings to pass through.

[0007] Preferably, the first feeding plate is slidably connected to two sets of vertical plates, a movable plate is slidably connected between the tops of the two sets of vertical plates, a plurality of sliding rods slidably connected to the bottom of the second feeding plate are fixedly connected to the bottom of the second feeding plate, a guide plate is fixedly connected to the top of the base, and a V-shaped groove is provided on one side of the guide plate, and horizontal grooves are provided on both sides of the V-shaped groove. A guide pin slidably connected to the horizontal groove is installed at the bottom of the second feeding plate through the vertical plate.

[0008] Preferably, one side of one of the vertical plates is rotatably mounted with multiple synchronous pulleys, and the multiple synchronous pulleys are connected by a synchronous belt drive. Both the feeding plate and the moving plate are fixedly connected to the synchronous belt, and a motor that drives the corresponding synchronous pulley to rotate is installed on the vertical plate by bolts.

[0009] Preferably, the L-shaped clamp is fixedly connected to the top of the material placement seat, the top of the material placement seat is provided with an I-shaped groove, and an I-shaped block is slidably connected in the I-shaped groove. A vertical rod that is movably installed with the irregular clamp is fixedly connected to the I-shaped block. The inside of the material placement seat is provided with a push plate that pushes the I-shaped block to move horizontally, and an inclined groove that is slidably connected to the vertical rod is provided on the push plate.

[0010] Preferably, a pushing block is fixedly installed on one side of the pushing plate, and a lifting bar is fixedly connected to the bottom of the movable plate, with inclined surfaces provided on both the bottom side of the lifting bar and the top side of the pushing block.

[0011] Preferably, an I-shaped plate is slidably connected inside the I-shaped groove, and a crossbar is fixedly connected inside the I-shaped groove and slidably connected to the I-shaped plate and the I-shaped block. A return spring is fixedly connected between the side of the I-shaped plate away from the I-shaped block and the I-shaped groove and located outside the crossbar.

[0012] Preferably, the irregular clamping plate includes a cam block rotatably connected to the vertical rod, and a Z-shaped plate and a U-shaped plate fixedly connected to both sides of the cam block. The free side of the U-shaped plate has a columnar structure, the bend of the Z-shaped plate has a smooth transition, and the top of the I-shaped plate is fixedly connected to an arc-shaped plate that abuts against the cam block.

[0013] Preferably, the push plate is fixedly connected to two sets of support rods that movably pass through the material placement seat, and a connecting plate is fixedly connected between the ends of the two sets of support rods. A push sleeve is rotatably connected to the connecting plate, and a spiral cut surface is opened on the side wall of the push sleeve. Several slots are equally spaced on the spiral cut surface. A column is fixedly connected between the vertical plates through a T-shaped plate, and a locking rod is installed on the annular outer wall of the column. A spring pin is installed on the connecting plate, and a number of limiting grooves equal to the number of slots are opened on the end face of the push sleeve.

[0014] Preferably, a U-shaped frame is installed between the vertical plates via an electric slide rail, and a linear electric cylinder module is installed on the U-shaped frame. An electric push rod is installed on the slide of the linear electric cylinder module via a support plate, and a laser cutter is installed on the telescopic rod of the electric push rod.

[0015] The beneficial effects of this invention are as follows: (1) The present invention adopts a staged support treatment of surface anti-slip support and multi-point rolling support to take into account both conveying stability and positioning fixation: First, the surface anti-slip support of the plastic parts is achieved by using the material placement seat to effectively avoid the risk of falling during the conveying process; when the plastic parts move to the cutting area with the loading plate, the multi-point rolling support is automatically triggered to replace the surface support, which not only improves the smoothness of the movement of the plastic parts during the positioning and clamping stage, but also avoids scratches on the surface of the plastic parts during the positioning and movement process; at the same time, the irregular clamping plate is driven to move and cooperate with the fixed L-shaped clamping plate to automatically adapt to plastic parts of different length and width dimensions and complete the four-sided precise positioning, ensuring that the clamping reference of all plastic parts to be processed is uniform, laying a solid foundation for the path accuracy of subsequent laser cutting, thereby improving the dimensional consistency and surface integrity of the plastic parts after cutting.

[0016] (2) This invention improves processing efficiency and adaptability to multiple specifications by using dual-station linkage and benchmark unification: With the help of the transmission cooperation of synchronous pulley and synchronous belt and the guide structure of V-groove, the alternating dual-station switching of loading plate one and loading plate two is realized, so that the loading process and the cutting process can be carried out simultaneously, shortening the processing waiting time and improving the overall production efficiency; at the same time, relying on the slot adjustment structure of the push sleeve and the insert, the clamping calibration benchmark of different sizes of plastic parts can be quickly unified to the corner point inside the L-shaped clamping plate, and the cutting path can be quickly edited without repeated benchmark calibration, thereby reducing the switching processing time of multi-specification plastic parts and enhancing the adaptability of mass production. Attached Figure Description

[0017] The invention will now be further described with reference to the accompanying drawings; Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the installation of the second feeding plate of the present invention; Figure 3 This is a schematic diagram of the structure of the clamping component of the present invention; Figure 4 This is a schematic diagram illustrating the cooperation between the push plate and the movable plate of the present invention; Figure 5 This is a schematic diagram of the material placement seat of the present invention; Figure 6 This is a schematic diagram showing the disassembly of the I-shaped block and the irregular clamping plate of the present invention; Figure 7 This is a schematic diagram of the insert of the present invention; Figure 8 This is a schematic diagram of the structure of the push sleeve of the present invention.

[0018] Legend: 1. Base; 11. Vertical plate one; 12. Vertical plate two; 13. Feeding plate one; 14. Feeding plate two; 15. Moving plate; 16. Slide rod; 17. Guide plate; 18. V-groove; 19. Horizontal groove; 110. Guide pin; 111. Synchronous pulley; 112. Synchronous belt; 113. Motor; 2. Material placement seat; 21. L-shaped clamping plate; 22. Irregular clamping plate; 23. Movable plate; 24. Universal ball bearing; 25. I-shaped groove; 26. I-shaped block; 27. Vertical rod; 28. Push plate; 29. ​​Inclined groove; 210. Push block; 211. Lifting bar; 212. I-shaped plate; 213. Return spring; 214. Support rod; 3. Connecting plate; 31. Push sleeve; 32. Slot; 33. Insert post; 34. Locking rod; 35. Spring pin; 36. Limiting groove; 4. U-shaped frame; 41. Linear electric cylinder module; 42. Electric push rod; 43. Laser cutter. Detailed Implementation

[0019] 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 of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1: Please refer to Figures 1-6 As shown, the problem of having only a separate cutting station, where the cutting device is idle during material loading, resulting in significant interruptions in process connections, extended workpiece turnaround time, and greatly limited processing efficiency for mass production can be solved by the following solutions: This embodiment of a laser cutting mechanism for processing plastic parts includes a base 1, and two sets of vertical plates 11 and two sets of vertical plates 12 fixedly connected to the top of the base 1. A loading plate 13 and a loading plate 14 are provided between the tops of the two sets of vertical plates 11, and the tops of the loading plate 13 and the loading plate 14 are both provided with clamping components for self-adaptive anti-scratch fixing of plastic parts. By switching between the loading plate 13 and the loading plate 14 in an alternating dual-station manner, the loading process and the cutting process can be carried out simultaneously, shortening the processing waiting time and improving the overall production efficiency. The clamping assembly includes a material placement base 2, and an L-shaped clamping plate 21 and an irregular clamping plate 22 are respectively provided at the top diagonal of the material placement base 2. The L-shaped clamping plate 21 and the irregular clamping plate 22 respectively abut against a set of long and wide sides of the plastic part to achieve four-sided clamping and fixing. The bottom of the material placement base 2 has a movable cavity, and a movable plate 23 is slidably connected inside the movable cavity. Multiple universal balls 24 are installed on the top of the movable plate 23. A clearance groove is provided through the top of the movable cavity for the corresponding universal balls 24 to pass through. After the plastic part moves to the cutting area, it rises via the movable plate 23. Multiple universal balls 24 pass through the corresponding clearance grooves, replacing the material seat 2 to provide multi-point rolling support for the plastic part. This not only improves the smoothness of the movement of the plastic part during the positioning and clamping stage, but also avoids scratches on the surface of the plastic part during the positioning and movement process, and quickly achieves cooling treatment after cutting in the cutting area.

[0021] The feeding plate 13 is slidably connected to two sets of vertical plates 11. A movable plate 15 is slidably connected between the tops of the two sets of vertical plates 12. Multiple sliding rods 16 that are slidably connected to the movable plate 15 are fixedly connected to the bottom of the feeding plate 14. A guide plate 17 is fixedly connected to the top of the base 1. A V-groove 18 is provided on one side of the guide plate 17. Horizontal grooves 19 are provided on both sides of the V-groove 18. A guide pin 110 that is slidably connected to the horizontal groove 19 is installed at the bottom of the feeding plate 14 through the vertical plate. The first loading plate 13 and the moving plate 15 move relative to each other. The guide pin 110 slides in the horizontal groove 19 on one side and enters the V-groove 18, driving the second loading plate 14 to descend synchronously. After the guide pin 110 moves to the lowest point of the V-groove 18, it drives the second loading plate 14 to rise synchronously. During this process, the second loading plate 14 passes under the first loading plate 13 to avoid it. The first loading plate 13 and the second loading plate 14 then move away from each other. Then the guide pin 110 enters the horizontal groove 19 on the other side. The second loading plate 14 moves only horizontally. The second loading plate 14 carries the placed plastic parts to the laser cutting area, and the first loading plate 13 moves to the loading area.

[0022] One of the vertical plates 11 has multiple synchronous pulleys 111 rotatably mounted on one side, and the multiple synchronous pulleys 111 are connected by a synchronous belt 112. The loading plate 13 and the moving plate 15 are both fixedly connected to the synchronous belt 112. The vertical plate 11 is bolted with a motor 113 that drives the corresponding synchronous pulley 111 to rotate. The motor 113 drives the corresponding synchronous pulley 111 to rotate, causing the synchronous belt 112 to carry the loading plate 13 and the moving plate 15 to move in opposite directions, so as to realize the alternating synchronous operation of the dual-station loading and cutting station.

[0023] L-shaped clamp 21 is fixedly connected to the top of the material placement base 2. The top of the material placement base 2 has a through-hole groove 25, and an I-shaped block 26 is slidably connected in the I-shaped groove 25. A vertical rod 27, which is movably installed with the irregular clamp 22, is fixedly connected to the I-shaped block 26. The inside of the material placement base 2 is provided with a push plate 28 that pushes the I-shaped block 26 to move horizontally. An inclined groove 29, which is slidably connected to the vertical rod 27, is opened on the push plate 28. The plastic part is placed on the top of the material placement base 2, and the push plate 28 is located at the bottom of the material placement base 2 and moves relative to it. Combined with the guidance of the vertical rod 27 by the inclined groove 29, the I-shaped block 26 is pushed to move in the I-shaped groove 25, causing the irregular clamp 22 to move towards the plastic part, and cooperate with the L-shaped clamp 21 for positioning and clamping.

[0024] A push block 210 is fixedly installed on one side of the push plate 28, and a lifting bar 211 is fixedly connected to the bottom of the movable plate 23. When the push plate 28 moves, the push block 210 first abuts against the lifting bar 211, and then pushes the movable plate 23 to rise, causing multiple universal balls 24 to pass through the corresponding clearance grooves. The bottom side of the lifting bar 211 and the top side of the push block 210 are both provided with inclined surfaces to improve the smoothness of the lifting of the movable plate 23, thereby reducing the moving force of the push plate 28.

[0025] An I-shaped plate 212 is slidably connected inside the I-shaped groove 25. A crossbar is fixedly connected inside the I-shaped groove 25 and slidably connected to the I-shaped plate 212 and the I-shaped block 26. This crossbar is used to limit the problem of reducing the reverse reset thrust of the I-shaped block 26 when the reset spring 213 bends laterally. A reset spring 213 is fixedly connected on the side of the I-shaped plate 212 away from the I-shaped block 26 between the I-shaped groove 25 and the crossbar.

[0026] The irregular clamping plate 22 includes a cam block rotatably connected to the vertical rod 27, and a Z-shaped plate and a U-shaped plate fixedly connected to both sides of the cam block. In the initial state, the protrusion of the cam block is located on the side of the I-shaped groove 25 away from the L-shaped clamping plate 21. The protrusion of the U-shaped plate and the cam block are located on the same side, and the Z-shaped plate is located on the opposite side. The free side of the U-shaped plate has a columnar structure, and the bending point of the Z-shaped plate is smoothly transitioned. The top of the I-shaped plate 212 is fixedly connected to an arc-shaped plate that abuts against the cam block. When the push plate 28 moves in conjunction with the I-shaped block 26, the Z-shaped plate of the irregular clamping plate 22 abuts against the wide edge of the plastic part, and combined with the multi-point rolling support, pushes the plastic part to move, causing the other wide edge of the plastic part to abut against the inner wall of one side of the L-shaped clamping plate 21. At this time, the movement of the plastic part along the length direction of the I-shaped groove 25 is restricted. Combined with the continuous movement of the I-shaped block 26, the irregular clamping plate 22 is deflected. The Z-shaped plate bends against one wide edge of the plastic part to provide a continuous abutting force, and the cam block's protrusion deflects against the arc plate, causing the I-shaped plate 212 to move away from the I-shaped block 26. The cylindrical end on the U-shaped plate deflects against one long edge of the plastic part, thereby pushing the plastic part to move a second time, causing the other long edge of the plastic part to abut against the inner wall of the L-shaped clamping plate 21, clamping and fixing the plastic part on all four sides. Then, when the push plate 28 moves in the reverse reset direction, the compression force of the reset spring 213 causes the I-shaped block 26 to reset and move, and the irregular clamping plate 22 to reset and deflect.

[0027] A U-shaped frame 4 is installed between the vertical plates 11 via an electric slide rail, and a linear electric cylinder module 41 is installed on the U-shaped frame 4. An electric push rod 42 is installed on the slide table of the linear electric cylinder module 41 via a support plate, and a laser cutter 43 is installed on the telescopic rod of the electric push rod 42. The electric slide rail pushes the U-shaped frame 4 to move, the linear electric cylinder module 41 pushes the support plate to move in the vertical direction of the U-shaped frame 4's moving path, and the electric push rod 42 drives the laser cutter 43 to move up and down, completing the hole cutting process of the plastic plate.

[0028] Example 2: Please refer to Figure 2 , Figure 7 and Figure 8 As shown, the inconsistent clamping calibration reference points for plastic parts of different sizes necessitate repeated reference calibrations, thus increasing the processing time for switching between multiple specifications of plastic parts. This problem can be solved by the following solution: In this embodiment, two sets of movable support rods 214 that pass through the material placement seat 2 are fixedly connected to the push plate 28, and a connecting plate 3 is fixedly connected between the ends of the two sets of support rods 214. A push sleeve 31 is rotatably connected to the connecting plate 3, and a spiral cut surface is opened on the side wall of the push sleeve 31. Several slots 32 are equally spaced on the spiral cut surface. A column 33 is fixedly connected between the vertical plates 11 through a T-shaped plate, and a locking rod 34 is installed on the annular outer wall of the column 33. After the material placement seat 2 moves horizontally to the cutting area, the push sleeve 31 contacts the insertion post 33, and the locking rod 34 on the insertion post 33 engages with the corresponding locking groove 32 on the spiral cutting surface. As the loading plate 2 14 continues to move horizontally, and the locking rod 34 and the locking groove 32 limit the position of the push sleeve 31, the push plate 28 moves relatively inside the material placement seat 2, thereby pushing the I-shaped block 26 to move and clamp and fix the plastic part on all four sides. When clamping plastic parts of different lengths and widths, rotate the push sleeve 31 and use the slots 32 with different spacings from the connecting plate 3 to cooperate with the clamping rod 34 to achieve a unified stopping position of the clamped and fixed material seat 2. Using the inner corner point of the L-shaped clamping plate 21 as the coordinate base point, the cutting path of the hole position of plastic plates of different sizes can be quickly edited. A spring pin 35 is installed on the connecting plate 3. The end face of the push sleeve 31 is provided with a number of limiting grooves 36 equal to the number of slots 32. During the horizontal movement of the push sleeve 31, the end of the spring pin 35 engages with the corresponding limiting groove 36 to achieve elastic limiting of the rotation of the push sleeve 31, thereby maintaining the smooth engagement of the corresponding required slot 32 and the locking rod 34.

[0029] Example 3: Please refer to Figures 1-8 As shown, the present invention also proposes a method for using a laser cutting mechanism for processing plastic parts, comprising the following steps: Step 1: The plastic part is placed on the top of the material seat 2 on the second feeding plate 14. The motor 113 drives the corresponding synchronous wheel 111 to rotate, causing the synchronous belt 112 to carry the first feeding plate 13 and the moving plate 15 to move relative to each other. The guide pin 110 slides in the horizontal groove 19 on one side and enters the V-groove 18, driving the second feeding plate 14 to descend synchronously until the guide pin 110 moves to the lowest point of the V-groove 18, driving the second feeding plate 14 to rise synchronously. During this process, the second feeding plate 14 passes under the first feeding plate 13 to avoid it. The first feeding plate 13 and the second feeding plate 14 then move away from each other. Then the guide pin 110 enters the other horizontal groove 19, and the second feeding plate 14 moves only horizontally. The second feeding plate 14 carries the placed plastic part to the laser cutting area, and the first feeding plate 13 moves to the feeding area. Step 2: The push sleeve 31 on the feeding plate 2 14 contacts the insertion post 33, and the locking rod 34 on the insertion post 33 engages with the corresponding locking groove 32 on the spiral cut surface. As the feeding plate 2 14 continues to move horizontally, and the locking rod 34, combined with the locking groove 32, limits the position of the push sleeve 31, causing the push plate 28 to move relative to the bottom of the material placement seat 2. Combined with the guidance of the inclined groove 29 on the vertical rod 27, the push block 26 abuts against the I-shaped plate 212 to compress the return spring 213 and move, causing the special-shaped clamping plate 22 to move towards the plastic part. The push block 210 on the push plate 28 abuts against the lifting bar 211, thereby pushing the movable plate 23 upward, causing multiple universal balls 24 to pass through the corresponding clearance grooves, replacing the material seat 2 to provide multi-point rolling support for the plastic part. Subsequently, the Z-shaped plate of the irregular clamping plate 22 abuts against the wide side of the plastic part, and combined with the multi-point rolling support, pushes the plastic part to move, causing the other wide side of the plastic part to abut against the inner wall of one side of the L-shaped clamping plate 21. At this time, the movement of the plastic part along the length direction of the I-shaped groove 25 is restricted. Combined with the continuous movement of the I-shaped block 26, the irregular clamping plate 22 is deflected. The Z-shaped plate bends against one wide side of the plastic part, and the cam block protrusion deflects against the arc plate, causing the I-shaped plate 212 to move away from the I-shaped block 26. The cylindrical end of the U-shaped plate deflects against one long side of the plastic part, thereby pushing the plastic part to move a second time, causing the other long side of the plastic part to abut against the inner wall of the L-shaped clamping plate 21, thus clamping and fixing the plastic part on four sides. Step 3: The electric slide rail pushes the U-shaped frame 4 to move, the linear electric cylinder module 41 pushes the support plate to move in the vertical direction of the U-shaped frame 4's moving path, and the electric push rod 42 drives the laser cutter 43 to move up and down, completing the hole cutting process of the plastic plate. Combined with multi-point support, it quickly achieves the cooling process after the cutting area is cut. Step 4: When clamping plastic parts of different lengths and widths, rotate the push sleeve 31 and use the slots 32 with different spacings from the connecting plate 3 to cooperate with the clamping rod 34 to achieve uniformity of the stopping position of the clamped and fixed material seat 2. Using the inner corner point of the L-shaped clamping plate 21 as the coordinate base point, quickly edit the cutting path of the hole position of plastic plates of different sizes.

[0030] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A laser cutting mechanism for processing plastic parts, comprising a base (1), and two sets of vertical plates (11) and two sets of vertical plates (12) fixedly connected to the top of the base (1), characterized in that, Between the top of the two sets of vertical plates (11), there is a first feeding plate (13) and a second feeding plate (14). The top of the first feeding plate (13) and the second feeding plate (14) are both provided with a clamping assembly for self-adaptive anti-scratch fixing of plastic parts. The clamping assembly includes a material placement seat (2). At the top diagonal of the material placement seat (2), there are L-shaped clamps (21) and irregular clamps (22). The bottom of the material placement seat (2) is provided with a movable cavity. The movable cavity is slidably connected with a movable plate (23). The top of the movable plate (23) is equipped with multiple universal balls (24). The top of the movable cavity is provided with a clearance groove for the corresponding universal balls (24) to pass through.

2. The laser cutting mechanism for processing plastic parts according to claim 1, characterized in that, The first feeding plate (13) is slidably connected to the two sets of vertical plates (11). A movable plate (15) is slidably connected between the tops of the two sets of vertical plates (12). The bottom of the second feeding plate (14) is fixedly connected to a plurality of sliding rods (16) that are slidably connected to the movable plate (15). The top of the base (1) is fixedly connected to a guide plate (17), and a V-groove (18) is provided on one side of the guide plate (17). Horizontal grooves (19) are provided on both sides of the V-groove (18). The bottom of the second feeding plate (14) is equipped with a guide pin (110) that is slidably connected to the horizontal groove (19) through the vertical plate.

3. The laser cutting mechanism for processing plastic parts according to claim 2, characterized in that, One of the vertical plates (11) has multiple synchronous pulleys (111) rotatably mounted on one side, and the multiple synchronous pulleys (111) are connected by a synchronous belt (112). The feeding plate (13) and the moving plate (15) are both fixedly connected to the synchronous belt (112). The vertical plate (11) is equipped with a motor (113) that drives the corresponding synchronous pulley (111) to rotate by bolts.

4. The laser cutting mechanism for processing plastic parts according to claim 1, characterized in that, The L-shaped clamp (21) is fixedly connected to the top of the material placement seat (2). The top of the material placement seat (2) is provided with an I-shaped groove (25), and an I-shaped block (26) is slidably connected in the I-shaped groove (25). A vertical rod (27) is fixedly connected to the I-shaped block (26) and is movably installed with the irregular clamp (22). The inside of the material placement seat (2) is provided with a push plate (28) for pushing the I-shaped block (26) to move horizontally, and an inclined groove (29) is provided on the push plate (28) and is slidably connected to the vertical rod (27).

5. The laser cutting mechanism for processing plastic parts according to claim 4, characterized in that, A push block (210) is fixedly installed on one side of the push plate (28), and a lifting bar (211) is fixedly connected to the bottom of the movable plate (23). An inclined surface is provided on the bottom side of the lifting bar (211) and the top side of the push block (210).

6. The laser cutting mechanism for processing plastic parts according to claim 4, characterized in that, An I-shaped plate (212) is slidably connected inside the I-shaped groove (25). A crossbar is fixedly connected inside the I-shaped groove (25) and slidably connected to the I-shaped plate (212) and the I-shaped block (26). A return spring (213) is fixedly connected on the side of the I-shaped plate (212) away from the I-shaped block (26) between the I-shaped groove (25) and the crossbar.

7. A laser cutting mechanism for processing plastic parts according to claim 6, characterized in that, The irregular clamp (22) includes a cam block rotatably connected to the vertical rod (27), and a Z-shaped plate and a U-shaped plate fixedly connected on both sides of the cam block. The free side of the U-shaped plate has a columnar structure, the bend of the Z-shaped plate is smoothly transitioned, and the top of the I-shaped plate (212) is fixedly connected to an arc-shaped plate that abuts against the cam block.

8. A laser cutting mechanism for processing plastic parts according to claim 4, characterized in that, Two sets of movable support rods (214) that pass through the material placement seat (2) are fixedly connected to the push plate (28), and a connecting plate (3) is fixedly connected between the ends of the two sets of support rods (214). A push sleeve (31) is rotatably connected to the connecting plate (3), and a spiral cut surface is opened on the side wall of the push sleeve (31). Several slots (32) are equally spaced on the spiral cut surface. A column (33) is fixedly connected between the vertical plates (11) through a T-shaped plate, and a locking rod (34) is installed on the annular outer wall of the column (33). A spring pin (35) is installed on the connecting plate (3), and a number of limiting slots (36) equal to the number of slots (32) are opened on the end face of the push sleeve (31).

9. A laser cutting mechanism for processing plastic parts according to claim 1, characterized in that, A U-shaped frame (4) is installed between the vertical plates (11) via an electric slide rail, and a linear electric cylinder module (41) is installed on the U-shaped frame (4). An electric push rod (42) is installed on the slide of the linear electric cylinder module (41) via a support plate, and a laser cutter (43) is installed on the telescopic rod of the electric push rod (42).

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