A tray positioning and clamping fixture based on laser cutting equipment

Abstract

This invention discloses a tray positioning and clamping fixture based on a laser cutting equipment, relating to the field of laser cutting equipment. It includes a laser cutting equipment and a rotating platform located outside the laser cutting equipment. A drive motor is located at the center of the bottom of the rotating platform, and the output of the drive motor drives the rotating platform to rotate intermittently. The position of the drive motor relative to the laser cutting equipment is fixed. A laser cutting platform is located below the laser beam of the laser cutting equipment. Each time the tray is placed above the limiting recess, the invention can limit the tray within the limiting recess through the limiting clamping unit, and the limiting position is fixed. This allows the first mechanical displacement arm, carrying the first clamping plate, to accurately clamp and transfer the tray, precisely placing it at the center of the laser cutting platform, allowing the laser beam of the laser cutting equipment to perform deburring on a batch of small workpieces above the tray.

Description

Technical Field

[0001] This invention relates to the field of laser cutting equipment, specifically to a tray positioning and clamping fixture based on laser cutting equipment. Background Technology

[0002] For small workpieces produced in batches using additive manufacturing or compression molding, the burrs on their surfaces need to be trimmed in batches using laser cutting equipment. A first robotic arm places a tray carrying a batch of workpieces sequentially onto a rotatable platform. The platform rotates intermittently, bringing multiple trays one by one closer to the laser cutting equipment. Then, a second robotic arm transfers the trays from the platform to the processing position of the laser cutting equipment for laser trimming.

[0003] During the intermittent rotation and displacement of the stage carrying multiple pallets, the stage on the pallets is prone to slippage and deviation. In addition, there are certain errors when the first and second robotic arms clamp and transfer the pallets. As a result, when the pallets enter the processing position of the laser cutting equipment, their placement position deviates greatly from the optimal processing position, and the laser beam cannot effectively perform burr cutting on all the workpieces on the pallets. Summary of the Invention

[0004] The purpose of this invention is to provide a tray positioning and clamping fixture based on a laser cutting equipment to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a tray positioning and clamping fixture based on a laser cutting equipment, comprising: a laser cutting equipment and a rotating platform located outside the laser cutting equipment; a drive motor is disposed at the bottom center of the rotating platform; the output end of the drive motor drives the rotating platform to rotate intermittently; the position of the drive motor relative to the laser cutting equipment is fixed; a laser cutting platform is disposed below the laser beam of the laser cutting equipment; and a plurality of circumferentially equidistant limiting recesses are fixedly embedded on the upper surface of the rotating platform, and each limiting recess... A tray is placed on top of each recessed platform. A second mechanical displacement arm and a first mechanical displacement arm are respectively mounted on the outer side of the turntable and the laser cutting equipment. The movable end of the second mechanical displacement arm is provided with two second clamping plates that move synchronously in opposite directions. The movable end of the first mechanical displacement arm is provided with two first clamping plates that move synchronously in opposite directions. The second mechanical displacement arm drives the two second clamping plates to clamp and transfer the tray on the shelf to the limiting recessed platform. The first mechanical displacement arm drives the two first clamping plates to clamp and transfer the tray on the limiting recessed platform to the laser cutting platform.

[0006] It also includes: a limiting clamping unit for limiting the tray to the upper surface of the limiting recess, the number of the limiting clamping units is two, and the two limiting clamping units are at an acute angle to the pushing direction of the tray. The limiting clamping unit includes a limiting clamping block, and the interior of the limiting recess is provided with a slot for the movement of the limiting clamping block. The bottom of the limiting recess is also provided with a triggering component for driving the limiting clamping block to move.

[0007] Preferably, the limiting clamping unit further includes a slide rail fixed inside each slot, and a sliding sleeve block is slidably sleeved on the outside of the slide rail. A sliding plate is fixedly disposed between the sliding sleeve block and the limiting clamping block, and the bottom of the sliding plate extends to the bottom of the cargo turntable. An mounting block is placed below each slide rail, and the mounting block is fixed to the bottom of the cargo turntable. A horizontal positioning rod is fixedly disposed inside the mounting block, and the sliding plate is slidably sleeved on the outer surface of the positioning rod. A first spring is sleeved on the outside of the positioning rod, and the two ends of the first spring are fixed to the mounting block and the sliding plate, respectively.

[0008] Preferably, the actuating component includes a lifting cylinder suspended at the bottom of each of the limiting recesses, the output end of the lifting cylinder facing upward, and a lifting block fixedly provided at the output end of the lifting cylinder. Rollers are rotatably mounted on the bottom outer side of each of the sliding plates, and a triangular inclined plate for pushing the rollers is fixedly provided on the upper surface of the lifting block.

[0009] Preferably, the lifting cylinder is an electric cylinder, specifically an SFA170 folding servo electric cylinder, which can automatically drive the lifting block to move up and down.

[0010] Preferably, the lifting cylinder is a sealed cylinder, and a piston block is slidably mounted inside the sealed cylinder. A piston rod is fixedly disposed between the top of the piston block and the lifting block. A first port and a second port, distributed vertically, are fixedly mounted on the side wall of the lifting cylinder. The first port and the second port are located above and below the piston block, respectively. When air enters through the first port and exits through the second port, the lifting block descends; when air exits through the first port and enters through the second port, the lifting block rises. A sealing cylinder is fixedly mounted on the side wall of the lifting cylinder, and a piston disc is slidably mounted inside the sealing cylinder. The sealing cylinder is connected to the first port and... The second port is connected to a first air pipe and a second air pipe respectively, and the connection ports of the first air pipe and the second air pipe to the sealing cylinder are located above and below the piston disc. A pressure block is also placed inside the sealing cylinder, and the pressure block is located above the piston disc. A light shaft that slides through the sealing cylinder and the turntable is fixedly provided on the top of the pressure block. The outer diameter of the pressure block is smaller than the inner diameter of the sealing cylinder. A third spring and a second spring are fixedly provided between the upper and lower ends of the piston disc and the pressure block and the sealing cylinder respectively. Push blocks are fixedly provided on the side walls of the second clamping plate and the first clamping plate.

[0011] Preferably, the elastic stiffness of the third spring is greater than the elastic stiffness of the pressure block.

[0012] Preferably, an air blowing unit is also provided on the outer side of the limiting recess. The air blowing unit is used to remove fixed impurities on the upper surface of the limiting recess. The air blowing unit includes a right-angle air tube located on the side of the limiting recess away from the optical axis. A through groove is opened inside the rotating platform to accommodate the right-angle air tube. A straight groove is also opened on the side wall of the limiting recess near the right-angle air tube. The outer diameter of the right-angle air tube is smaller than the width of the straight groove. A limiting sleeve is fixedly installed inside the through groove. The right-angle air tube is coaxially mounted with the bottom of the right-angle air tube, which is rotatably mounted inside the limiting sleeve. The bottom of the limiting sleeve has a vent hole. A gear differential is also fixedly suspended at the bottom of the turntable. The output end of the gear differential is rotatably mounted inside the bottom of the limiting sleeve. A fan wheel is also fixedly mounted on the output end of the gear differential. A swinging component is provided between the gear differential and the right-angle air tube. A driving component is provided between the gear differential and the optical axis.

[0013] Preferably, the rocking component includes a first rotating shaft rotatably mounted on the outside of the limiting sleeve, and the axis of the first rotating shaft is parallel to the axis of the limiting sleeve. Synchronous gears are fixedly mounted on the output end of the gear differential and the outer surface of the first rotating shaft, and a synchronous toothed belt is connected between the two synchronous gears. The outer diameter of the synchronous gear located on the outer surface of the output end of the gear differential is larger than the outer diameter of the synchronous gear located on the outer surface of the first rotating shaft. A first toothed gear is fixedly mounted on the outer surface of the right-angle air tube, and an annular groove is formed on the inner side of the first toothed gear. A fourth spring is distributed inside the annular groove, and a first stop block and a second stop block are fixedly mounted on both ends of the fourth spring. The first stop block and the second stop block are fixed to the first toothed gear and the cargo turntable, respectively. A second toothed gear is also fixedly mounted on the outer surface of the first rotating shaft, and the second toothed gear meshes with the first toothed gear.

[0014] Preferably, the driving component includes a ratchet bar located outside the optical axis, and the optical axis is fixed together with the top of the ratchet bar. The ratchet bar slides through the cargo turntable, and a second rotating shaft is rotatably suspended at the bottom of the cargo turntable. A movable ratchet gear that meshes with the ratchet bar is fixedly sleeved on the outer surface of the second rotating shaft, and the other end of the second rotating shaft is fixedly assembled with the input end of the gear differential.

[0015] Preferably, the second missing tooth gear has the same number of teeth as the first missing tooth gear, and the angle by which the first missing tooth gear rotates with the right-angle trachea each time is 120°.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] Each time the pallet is placed above the limiting recess, the limiting clamping unit can confine the pallet inside the limiting recess, and the position of the confinement is fixed. This allows the first mechanical displacement arm, carrying the first clamping plate, to accurately clamp and transfer the pallet, so that it can be accurately placed in the center of the laser cutting platform, allowing the laser beam of the laser cutting equipment to perform burr cutting on the batch of small workpieces above the pallet. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a top view of the platform of the present invention;

[0020] Figure 3 This is a schematic diagram of the position distribution structure of the lifting cylinder of the present invention;

[0021] Figure 4 This is a schematic diagram of the triangular inclined plate and roller structure of the present invention;

[0022] Figure 5 This is a schematic diagram of the internal structure of the sealing cylinder of the present invention;

[0023] Figure 6 This is a schematic diagram of the gear differential structure of the present invention;

[0024] Figure 7 This is a schematic diagram of the ratchet rod structure of the present invention;

[0025] Figure 8 For the present invention Figure 7 Enlarged view of point A in the middle;

[0026] Figure 9 This is a cross-sectional view of the first toothed gear of the present invention.

[0027] In the diagram: 1. Turntable; 2. Laser cutting equipment; 3. Laser cutting platform; 4. First mechanical displacement arm; 5. First clamping plate; 6. Second mechanical displacement arm; 7. Second clamping plate; 8. Limiting recess; 9. Pallet; 10. Lifting cylinder; 11. Lifting block; 12. Triangular inclined plate; 13. Positioning rod; 14. Sliding plate; 15. First spring; 16. Limiting clamping block; 17. Mounting block; 18. Slide rail; 19. Sliding sleeve block; 20. Roller; 21. Sealing cylinder; 22. First 23. Second air tube; 24. Piston disc; 25. Second spring; 26. Third spring; 27. Pressure block; 28. Optical shaft; 29. ​​Racket rod; 30. Push block; 31. Straight groove; 32. Right-angle air tube; 33. First toothed gear; 34. First stop block; 35. Second stop block; 36. Fourth spring; 37. Second toothed gear; 38. First rotating shaft; 39. Limiting sleeve; 40. Fan wheel; 41. Gear differential; 42. Second rotating shaft; 43. Movable ratchet. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Example 1: Please refer to Figures 1-4The figure shows a tray positioning and clamping fixture based on a laser cutting equipment, including: a laser cutting equipment 2 and a rotating platform 1 located outside the laser cutting equipment 2. A drive motor is set at the bottom center of the rotating platform 1, and the output end of the drive motor drives the rotating platform 1 to rotate intermittently. The position of the drive motor and the laser cutting equipment 2 is relatively fixed. A laser cutting platform 3 is set below the laser beam of the laser cutting equipment 2. Several circumferentially equidistant limiting recesses 8 are fixedly embedded on the upper surface of the rotating platform 1, and each limiting recess 8 is topped with a... A second mechanical displacement arm 6 and a first mechanical displacement arm 4 are respectively mounted on the outside of the pallet 9, the turntable 1, and the laser cutting equipment 2. The movable end of the second mechanical displacement arm 6 is provided with two second clamping plates 7 that move synchronously in opposite directions. The movable end of the first mechanical displacement arm 4 is provided with two first clamping plates 5 that move synchronously in opposite directions. The second mechanical displacement arm 6 drives the two second clamping plates 7 to clamp and transfer the pallet 9 on the shelf to the limiting recess 8. The first mechanical displacement arm 4 drives the two first clamping plates 5 to clamp and transfer the pallet 9 on the limiting recess 8 to the laser cutting platform 3.

[0030] It also includes: a limiting clamping unit for limiting the tray 9 to the upper surface of the limiting recess 8. There are two limiting clamping units, and the two limiting clamping units are at an acute angle to the pushing direction of the tray 9. The limiting clamping unit includes a limiting clamping block 16, and the interior of the limiting recess 8 is provided with a slot for the limiting clamping block 16 to move. The bottom of the limiting recess 8 is also provided with a triggering component for driving the limiting clamping block 16 to move.

[0031] The limiting clamping unit also includes a slide rail 18 fixed inside each slot, and a sliding sleeve block 19 is slidably sleeved on the outside of the slide rail 18. A sliding plate 14 is fixed between the sliding sleeve block 19 and the limiting clamping block 16, and the bottom of the sliding plate 14 extends to the bottom of the cargo turntable 1. A mounting block 17 is placed below each slide rail 18, and the mounting block 17 is fixed to the bottom of the cargo turntable 1. A horizontal positioning rod 13 is fixed inside the mounting block 17, and the sliding plate 14 is slidably sleeved on the outer surface of the positioning rod 13. A first spring 15 is sleeved on the outside of the positioning rod 13, and the two ends of the first spring 15 are fixed to the mounting block 17 and the sliding plate 14 respectively. Under the elastic pressure of the first spring 15, the two limiting clamping blocks 16 can simultaneously push the tray 9 elastically, thereby fixing the tray 9 to the upper surface of the limiting recess 8.

[0032] The actuating components include a lifting cylinder 10 suspended at the bottom of each limiting recess 8. The output end of the lifting cylinder 10 faces upward, and a lifting block 11 is fixedly installed at the output end of the lifting cylinder 10. A roller 20 is rotatably mounted on the outer bottom of each sliding plate 14, and a triangular inclined plate 12 that pushes the roller 20 is fixedly installed on the upper surface of the lifting block 11. When the lifting cylinder 10 drives the output end to move upward with the lifting block 11, the roller 20 can be pushed by the inclined surface of the triangular inclined plate 12, so that the sliding plate 14 moves with the limiting clamp 16 and compresses the first spring 15, so that the limiting clamp 16 will not obstruct the tray 9 from falling smoothly into the recess of the limiting recess 8.

[0033] The lifting cylinder 10 is an electric cylinder, specifically an SFA170 folding servo electric cylinder. The lifting cylinder 10 can automatically drive the lifting block 11 to move up and down.

[0034] Example 2: Please refer to Figures 1-5 This embodiment is a further explanation of other embodiments. The lifting cylinder 10 is a sealed cylinder, and a piston block is slidably assembled inside the sealed cylinder. A piston rod is fixedly arranged between the top of the piston block and the lifting block 11. The side wall of the lifting cylinder 10 is fixedly connected to a first port and a second port distributed vertically. The first port and the second port are located above and below the piston block, respectively. When air enters through the first port and exits through the second port, the lifting block 11 descends; when air exits through the first port and enters through the second port, the lifting block 11 rises. A sealing cylinder 21 is fixedly mounted on the side wall of the lifting cylinder 10, and a piston disc 24 is slidably assembled inside the sealing cylinder 21. A first air pipe 22 and a second air pipe 23 are respectively connected between the sealing cylinder 21 and the first port and the second port, and the first air pipe 22 and the second air pipe 23 are connected to the sealing cylinder 21. The port is located above and below the piston disc 24. Inside the sealing cylinder 21, there is also a pressure block 27, which is located above the piston disc 24. The top of the pressure block 27 is fixedly provided with a light shaft 28 that slides through the sealing cylinder 21 and the turntable 1. The outer diameter of the pressure block 27 is smaller than the inner diameter of the sealing cylinder 21. The upper and lower ends of the piston disc 24 are respectively fixedly provided with a third spring 26 and a second spring 25 between the pressure block 27 and the sealing cylinder 21. The side walls of the second clamping plate 7 and the first clamping plate 5 are both fixedly provided with push blocks 30. When the first clamping plate 5 and the second clamping plate 7 move from top to bottom toward the tray 9, they will press the light shaft 28 down in advance through the push blocks 30. The pressure block 27 presses down through the piston disc 24, so that the gas below the piston disc 24 enters the second port through the second air pipe 23, thereby causing the lifting block 11 to move upward.

[0035] The elastic stiffness of the third spring 26 is greater than that of the pressure block 27. When the optical axis 28 moves downward, the second spring 25 is compressed first. After the second spring 25 is compressed to its maximum value, the third spring 26 will undergo elastic compression deformation under continuous pressure. This allows the two limiting clamps 16 to unfold in advance before the tray 9 contacts the limiting recess 8, so that the tray 9 can be placed smoothly on the limiting recess 8. When the first clamp 5 or the second clamp 7 is reset upward, the reset of the optical axis 28 will also allow the two limiting clamps 16 to elastically clamp and limit the tray 9.

[0036] Example 3: Please refer to Figures 6-9 This embodiment is a further explanation of other embodiments. An air blowing unit is also provided on the outer side of the limiting recess 8. The air blowing unit is used to remove fixed impurities from the upper surface of the limiting recess 8, thereby ensuring that the tray 9 can be placed stably on the limiting recess 8. The air blowing unit includes a right-angle air pipe 32 located on the side of the limiting recess 8 away from the optical axis 28. A through groove for accommodating the right-angle air pipe 32 is provided inside the rotating platform 1. A straight groove 31 is also provided on the side wall of the limiting recess 8 near the right-angle air pipe 32. The outer diameter of the right-angle air pipe 32 is smaller than the width of the straight groove 31. A limiting sleeve 39 is fixedly installed inside the through groove, and the limiting sleeve 39 and the right-angle air pipe 32 are coaxially assembled. The bottom of the right-angle air pipe 32 is rotatably mounted inside the limiting sleeve 39. Ventilation holes are provided at the bottom of 9. A gear differential 41 is fixedly suspended at the bottom of the turntable 1. The output end of the gear differential 41 is rotatably mounted on the inner side of the bottom of the limiting sleeve 39. A fan wheel 40 is also fixedly fitted at the output end of the gear differential 41. A swinging component is provided between the gear differential 41 and the right-angle air tube 32. A driving component is provided between the gear differential 41 and the optical shaft 28. Each time the optical shaft 28 moves downward, it can rotate the input end of the gear differential 41, thereby causing the fan wheel 40 to rotate at high speed and inject high-speed airflow into the inside of the right-angle air tube 32. Under the action of the swinging component, the right-angle air tube 32 can swing back and forth, so that the port of the right-angle air tube 32 blows the high-speed airflow evenly onto the upper surface of the limiting recess 8.

[0037] The rocking component includes a first rotating shaft 38 rotatably mounted on the outside of the limiting sleeve 39, with the axis of the first rotating shaft 38 parallel to the axis of the limiting sleeve 39. Synchronous gears are fixedly fitted onto the output end of the gear differential 41 and the outer surface of the first rotating shaft 38, and a synchronous toothed belt is connected between the two synchronous gears. The outer diameter of the synchronous gear located on the outer surface of the output end of the gear differential 41 is larger than the outer diameter of the synchronous gear located on the outer surface of the first rotating shaft 38. A first toothed gear 33 is fixedly fitted onto the outer surface of the right-angle air pipe 32, and an annular groove is formed on the inner side of the first toothed gear 33. A fourth spring 36 is distributed inside the annular groove. The first stop 34 and the second stop 35 are fixedly installed at both ends of the fourth spring 36. The first stop 34 and the second stop 35 are fixed to the first toothed gear 33 and the turntable 1, respectively. The outer surface of the first rotating shaft 38 is also fixedly fitted with the second toothed gear 37. The second toothed gear 37 meshes with the first toothed gear 33. When the fan wheel 40 rotates, the first rotating shaft 38 can also rotate the second toothed gear 37 at a slower speed. Through the meshing of the second toothed gear 37 with the first toothed gear 33 and the elastic pressure of the fourth spring 36, the right-angle air tube 32 can be moved to swing back and forth.

[0038] The drive component includes a ratchet 29 located outside the optical axis 28, and the top of the optical axis 28 and the ratchet 29 are fixed together. The ratchet 29 slides through the cargo turntable 1. A second rotating shaft 42 is rotatably suspended at the bottom of the cargo turntable 1. A movable ratchet 43 that meshes with the ratchet 29 is fixedly sleeved on the outer surface of the second rotating shaft 42. The other end of the second rotating shaft 42 is fixedly assembled with the input end of the gear differential 41. The ratchet 29 will only mesh with the movable ratchet 43 and rotate when it moves downward. When the ratchet 29 returns to its original position, the movable ratchet 43 will not rotate.

[0039] The second missing tooth gear 37 has the same number of teeth as the first missing tooth gear 33, and each time the first missing tooth gear 33 is driven to rotate the right-angle air tube 32 by an angle of 120°, which is just enough to allow the high-speed airflow blown out from the upper end of the right-angle air tube 32 to completely sweep the upper surface of the limiting recess 8.

[0040] Working principle: In the initial state, the tops of several limiting recesses 8 above the loading turntable 1 are not occupied by trays 9. Through the cooperation of the second mechanical displacement arm 6 and the loading turntable 1, multiple trays 9 can be placed in sequence above the limiting recesses 8. Each time the second clamping plate 7 holds the tray 9 and moves downward above the limiting recesses 8, the push block 30 on the outside of the second clamping plate 7 will first press down on the optical axis 28. Through the pressure block 27 and the third spring 26, the piston disc 24 compresses the second spring 25. At the same time, the gas below the piston disc 24 enters the lifting cylinder 10 through the second air pipe 23 to push the lifting block 11 upward. When the lifting block 11 moves upward to the maximum value, and the second spring 25 can no longer be compressed, the continuous downward movement of the optical axis 28 will cause the third spring 26 to start compressing, and bring the tray 9 held by the second clamping plate 7 closer to the limiting recesses 8.

[0041] When the lifting block 11 moves upward with the triangular inclined plate 12, the inclined surface of the triangular inclined plate 12 pushes the roller 20, causing the sliding plate 14 to slide with the limiting clamp 16. This prevents the limiting clamp 16 from obstructing the contact between the lower end of the tray 9 and the upper end of the limiting recess 8. At this time, the second clamp 7 can also release the tray 9, allowing it to fall onto the upper end of the limiting recess 8. When the second clamp 7 moves upward to reset, the second spring 25 and the third spring 26 will also begin to reset. After the roller 20 is no longer pushed, the reaction force of the first spring 15 will cause the two sliding plates 14, along with the two limiting clamps 16, to elastically clamp and restrict the tray 9 onto the limiting recess 8. This prevents the tray 9 from shifting or sliding on the upper end of the limiting recess 8 when the turntable 1 rotates intermittently.

[0042] When the turntable 1, carrying the tray 9 on the limiting recess 8, moves to directly below the first clamping plate 5, the first mechanical displacement arm 4 drives the first clamping plate 5 downward. At this time, the push block 30 on the outer side of the first clamping plate 5 also presses downward against the optical axis 28. As described above, this causes the two limiting clamping blocks 16 to open again until the first clamping plate 5 can clamp and move the tray 9 upward. Only then will the limiting clamping blocks 16 return to their original position. This ensures that the position of the first clamping plate 5 clamping each tray 9 is fixed, thus ensuring the accuracy of clamping the tray 9. It also allows the first clamping plate 5 to place each tray 9 on the laser cutting surface. Since the positions on the platform 3 are all the same, the laser cutting equipment 2 can ensure the accuracy and integrity of laser cutting the small workpieces on the tray 9. After the small workpieces on the tray 9 are laser cut, the cut tray 9 can be placed on the limiting recess 8 again by the first clamping plate 5 for transfer to the next station. When the processed tray 9 on the limiting recess 8 is transferred out, it can also be processed by a robotic arm similar to the first mechanical displacement arm 4 or the second mechanical displacement arm 6. The first mechanical displacement arm 4 and the second mechanical displacement arm 6 are also very practical and widely used existing technology products.

[0043] In this scheme, each time the first clamping plate 5 or the second clamping plate 7 moves downward, the push block 30 can press the optical shaft 28 and the ratchet 29 downward, thereby causing the second rotating shaft 42 to contact the input end of the gear differential 41 to rotate, and the output end of the gear differential 41 to simultaneously drive the fan wheel 40 and the first rotating shaft 38 to rotate. The high-speed rotation of the fan wheel 40 can inject high-speed airflow into the inside of the right-angle air tube 32. When the first rotating shaft 38 drives the second toothed gear 37 to rotate, through the elastic cooperation of the fourth spring 36, the right-angle air tube 32 can swing back and forth against the straight groove 31, so that the high-speed airflow can be blown evenly on the upper surface of the limiting recess 8.

[0044] When the tray 9 is not placed on the upper surface of the limiting recess 8, it can blow away the particulate matter attached to the upper surface of the limiting recess 8 to avoid the influence of solid matter and prevent the tray 9 from being able to fit stably with the limiting recess 8.

[0045] When the tray 9 is placed on the upper surface of the limiting recess 8, and the optical axis 28 moves downward to make the right-angle air pipe 32 swing and blow air, it can blow air onto the surface of the small workpiece on the upper surface of the tray 9. If the small workpiece is subjected to laser deburring, it can also blow away the dust and powder on the surface of the small workpiece; if the small workpiece has not yet been subjected to laser deburring, it can blow away the small impurities adhering to the surface of the small workpiece.

[0046] 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.

[0047] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tray positioning and clamping tool based on a laser cutting device, characterized by, Include: The laser cutting equipment (2) and the object carrier turntable (1) outside the laser cutting equipment (2), the bottom center of the object carrier turntable (1) is provided with a driving motor, the laser beam below the laser cutting equipment (2) is provided with a laser cutting platform (3), the upper end surface of the object carrier turntable (1) is fixedly embedded with a plurality of limit concave tables (8) distributed in a circle equidistantly, and the upper side of each limit concave table (8) is placed with a tray (9), the outer side of the object carrier turntable (1) and the laser cutting equipment (2) is respectively provided with a second mechanical displacement arm (6) and a first mechanical displacement arm (4), the movable end of the second mechanical displacement arm (6) is provided with two second clamping plates (7) moving synchronously and reversely, the movable end of the first mechanical displacement arm (4) is provided with two first clamping plates (5) moving synchronously and reversely. Also include: The limit clamping unit is used for limiting the tray (9) on the upper end surface of the limit concave table (8), the number of the limit clamping unit is two, and the two limit clamping units are acute-angled to the pushing direction of the tray (9), the limit clamping unit comprises a limit clamping block (16), and the inside of the limit concave table (8) is provided with a slot for the movement of the limit clamping block (16), and the bottom of the limit concave table (8) is further provided with a touch component for driving the limit clamping block (16) to move. The limit clamping unit further comprises a slide rail (18) fixed in each slot, and the outside of the slide rail (18) is slidably sleeved with a slide sleeve block (19), the slide sleeve block (19) and the limit clamping block (16) are fixedly provided with a sliding plate (14), the lower side of each slide rail (18) is placed with a mounting block (17), the inside of the mounting block (17) is fixedly provided with a positioning rod (13), and the sliding plate (14) is slidably sleeved on the outer surface of the positioning rod (13), the outside of the positioning rod (13) is sleeved with a first spring (15), and the two ends of the first spring (15) are respectively fixed with the mounting block (17) and the sliding plate (14).

2. The tray positioning and clamping tool based on a laser cutting device according to claim 1, characterized in that: The touch component comprises a lifting cylinder (10) suspended on the bottom of each limit concave table (8), and the output end of the lifting cylinder (10) is fixedly provided with a lifting block (11), the bottom outer side of each sliding plate (14) is rotatably assembled with a roller (20), and the upper end surface of the lifting block (11) is further fixedly provided with a triangular inclined plate (12) for pushing the roller (20).

3. The tray positioning and clamping tool based on a laser cutting device according to claim 2, characterized in that: The lifting cylinder (10) is an electric cylinder.

4. The tray positioning and clamping tool based on a laser cutting device according to claim 2, characterized in that: The lifting cylinder (10) is a sealed cylinder, and a piston block is slidably arranged in the sealed cylinder, a piston rod is fixedly arranged between the top of the piston block and the lifting block (11), the side wall of the lifting cylinder (10) is provided with a first port and a second port arranged in an up-down distribution, the side wall of the lifting cylinder (10) is fixedly provided with a sealing cylinder (21), a piston disc (24) is slidably arranged in the sealing cylinder (21), the sealing cylinder (21) is respectively communicated with the first port and the second port and is provided with a first air pipe (22) and a second air pipe (23), the inside of the sealing cylinder (21) further places a pressing block (27), the top of the pressing block (27) is fixedly provided with a sliding hole penetrating through the optical axis (28) of the object carrier turntable (1) and the sealing cylinder (21), the upper and lower ends of the piston disc (24) are fixedly provided with a third spring (26) and a second spring (25) between the pressing block (27) and the sealing cylinder (21) respectively, and the side walls of the second clamping plate (7) and the first clamping plate (5) are fixedly provided with a push block (30).

5. The tray positioning and clamping tool based on a laser cutting device according to claim 4, characterized in that: The elastic stiffness of the third spring (26) is greater than the elastic stiffness of the pressing block (27).

6. The tray positioning and clamping tool based on a laser cutting device according to claim 5, characterized in that: The outer side of the limiting concave table (8) is further provided with a blowing unit, the blowing unit comprises a right-angle air pipe (32) located on the side of the limiting concave table (8) away from the optical axis (28), and the inside of the object carrier turntable (1) is provided with a through groove for accommodating the right-angle air pipe (32), the side wall of the limiting concave table (8) close to the right-angle air pipe (32) is further provided with a straight groove (31), the inside of the through groove is fixedly provided with a limiting sleeve (39), the bottom of the right-angle air pipe (32) is rotatably arranged in the inside of the limiting sleeve (39), the bottom of the object carrier turntable (1) is further fixedly provided with a gear differential mechanism (41), the output end of the gear differential mechanism (41) is rotatably arranged in the inside of the bottom of the limiting sleeve (39), the output end of the gear differential mechanism (41) is further fixedly provided with a fan wheel (40), the gear differential mechanism (41) and the right-angle air pipe (32) are provided with a swing component, and the gear differential mechanism (41) and the optical axis (28) are provided with a driving component.

7. The tray positioning and clamping tool based on a laser cutting device according to claim 6, characterized in that: The swing component comprises a first rotating shaft (38) rotatably arranged on the outside of the limiting sleeve (39), the output end of the gear differential mechanism (41) and the outer surface of the first rotating shaft (38) are transmissionally arranged, the outer surface of the right-angle air pipe (32) is fixedly provided with a first missing tooth gear (33), the inside of the first missing tooth gear (33) is provided with an annular groove, the inside of the annular groove is provided with a fourth spring (36), the two ends of the fourth spring (36) are fixedly provided with a first stop block (34) and a second stop block (35) respectively, the first stop block (34) and the second stop block (35) are fixed to the first missing tooth gear (33) and the object carrier turntable (1) respectively, and the outer surface of the first rotating shaft (38) is further fixedly provided with a second missing tooth gear (37).

8. The tray positioning and clamping tool based on a laser cutting device according to claim 6, characterized in that: The driving part comprises a ratchet rod (29) outside the optical axis (28), and the optical axis (28) and the top of the ratchet rod (29) are fixed together, the bottom of the object turntable (1) is hung with a second rotating shaft (42), the outer surface of the second rotating shaft (42) is fixedly sleeved with a movable ratchet gear (43) movably engaged with the ratchet rod (29), and the other end of the second rotating shaft (42) is fixedly assembled with the input end of the gear differential (41).

9. The tray positioning and clamping tool based on a laser cutting device according to claim 7, characterized in that: The second toothless gear (37) is consistent with the number of meshing teeth of the first toothless gear (33).

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