Workpiece feeding and discharging device of laser cutting machine

Abstract

The utility model discloses a laser cutting machine workpiece feeding and discharging device, which relates to the field of laser cutting machine auxiliary equipment, and comprises a machine tool main body, a frame and a mounting rack, the top of the machine tool main body is fixedly provided with a placing plate, a plurality of rolling shafts are arranged above the placing plate, the placing plate is provided with a fixed seat along the length direction, and the rolling shafts are arranged on the fixed seat. The fixing seats are arranged on the two sides of the rolling shaft, a main lifting lead screw is rotationally connected to the middle of the inner wall of the left end of the frame, main lifting guide columns are arranged on the two sides of the main lifting lead screw, a base is mounted at the bottom of the mounting frame, and a sliding groove is formed in the top of the base. According to the scheme, the position of a workpiece is determined through the combined action of the visual system above the universal suction cup, the air cylinder and the baffle, the position of the frame is determined by fixing the bolt device at the right end of the frame and the machine tool body, and the accuracy of the position of the workpiece is greatly guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment for laser cutting machines, and in particular to a loading and unloading device for laser cutting machines. Background Technology

[0002] The working principle of laser cutting technology is to use a high-energy-density laser beam to irradiate the surface of a workpiece, causing the workpiece to locally melt or vaporize. Simultaneously, high-pressure gas coaxial with the laser beam blows away the molten or vaporized material, thus achieving cutting. Currently, laser cutters are widely used in sheet metal processing, machinery manufacturing, automobile manufacturing, aerospace, electronics, advertising, and decoration industries, becoming an important processing equipment.

[0003] In traditional cutting machine processing, the loading and unloading of sheet metal largely relies on manual operation. Workers need to move the sheet metal to be processed onto the cutting machine's worktable, and after cutting, remove the finished sheet metal from the worktable. This manual loading and unloading method is not only time-consuming but also prone to errors during frequent handling, leading to low processing efficiency. Furthermore, the varying weights and sizes of workpieces can easily cause worker fatigue and high labor intensity. Manual loading and unloading also poses certain safety hazards; significant positional deviations when the sheet metal is placed on the processing equipment can result in inaccurate cutting or processing paths. Displacement of the sheet metal during processing makes it difficult to ensure precise positioning of the workpiece on the worktable, thus affecting cutting accuracy. Utility Model Content

[0004] To solve the above-mentioned technical problems, a workpiece loading and unloading device for laser cutting machines is provided. This technical solution solves the problems of high labor intensity, certain safety hazards, and difficulty in ensuring accurate positioning of workpieces on the worktable due to limitations in operational precision during manual loading and unloading.

[0005] To achieve the above objectives, the technical solution adopted by the utility model is as follows: a workpiece loading and unloading device for a laser cutting machine, comprising a machine tool body, a frame, and a mounting bracket. A placement plate is fixedly installed on the top of the machine tool body. A fixed seat is provided on the placement plate along the length direction. The fixed seat is located on both sides of the worktable. A cylinder is fixedly installed in the middle of the fixed seat. A sliding seat is snapped into the top of the fixed seat. The sliding seat slides along the length direction of the fixed seat. A baffle is fixedly connected to the output end of the cylinder. A sliding frame is fixedly connected above the two sliding seats. A cutting head is slidably connected inside the sliding frame. The cutting head slides along the sliding frame. Multiple support legs are fixedly installed at the bottom of the machine tool body.

[0006] The frame is located on one side of the machine tool body. A stripper plate is placed at the center of the frame. A main lifting screw is rotatably connected to the middle of the inner walls at both ends of the frame. A main lifting guide column is provided on both sides of the main lifting screw. A lifting seat is threadedly connected to the surface of the main lifting screw. The interior of the lifting seat is slidably connected to the main lifting guide column. A buffer block is provided below the stripper plate. The stripper plate is fixedly connected to the lifting seats on both sides. A motor is fixedly installed on both sides of the frame. The output end of the motor is fixedly connected to the main lifting screw. The right end of the frame is connected to the machine tool body through a pin device.

[0007] The mounting bracket has a base at its bottom and a sliding groove at its top. The sliding groove is slidably connected to the mounting bracket via a slider 1 located therein. The inner wall of the mounting bracket has two limiting grooves, and limiting blocks are provided inside the two limiting grooves. The limiting grooves are connected to the limiting blocks via slider 2 located inside. Both limiting blocks are fixedly connected to the top of the suction cup assembly. The other end of the frame is fixedly mounted with the same mounting bracket, and both limiting blocks are fixedly connected to the other side of the top of the suction cup assembly.

[0008] Preferably, multiple auxiliary wheels are fixedly installed at the bottom of the frame, and gears are connected between the output ends of the motor.

[0009] Preferably, a positioning baffle is fixedly installed at the top right end of the machine tool body.

[0010] Preferably, the suction cup assembly includes a suction cup bracket and a universal suction cup. The top of the suction cup bracket is fixedly connected to a limiting block, and several universal suction cups are fixedly connected to the bottom of the suction cup bracket. A vacuum generator is fixedly installed at the top center of the suction cup bracket, and the vacuum generator is connected to the universal suction cups through an air pipe.

[0011] Preferably, the frame has a through hole at the right end, which corresponds to the pin device. The inner wall of the left side of the machine tool body has a groove corresponding to the size of the right end of the frame. The right end of the frame is engaged with the groove. The pin devices are respectively installed on both sides of the left end of the machine tool body.

[0012] Preferably, the pin device includes a pin body, a pin head, a pin tail, a second limiting block, and a damping spring. The pin head is provided at the bottom of the pin body, the pin tail is fixedly connected to the top of the pin body, the second limiting block is fixedly installed below the pin tail, and the damping spring is sleeved at the lower end of the second limiting block.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: using thickened steel plates and aluminum alloy profiles reduces vibration and deformation during the feeding process; the devices on the inner walls at both ends and the buffer blocks on the inner side absorb the impact force during feeding, making the feeding more stable and improving work efficiency; this solution determines the position of the workpiece through the vision system above the universal suction cup and the combined action of the cylinder and the baffle; and the frame is fixed to the machine tool body through the pin device on the right end of the frame, thus determining the position of the frame and greatly ensuring the accuracy of the workpiece position. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a structural schematic diagram of the present invention from another perspective;

[0016] Figure 3 This is a schematic diagram of the mounting bracket in this utility model;

[0017] Figure 4 for Figure 1 Enlarged view of point A in the middle;

[0018] Figure 5 for Figure 2 Enlarged view of point B in the middle;

[0019] Figure 6 A schematic diagram of the pin device.

[0020] The components in the diagram are labeled as follows: 1. Machine tool body; 2. Frame; 3. Mounting bracket; 4. Placement plate; 5. Worktable; 6. Fixed base; 7. Cylinder; 8. Sliding seat; 9. Baffle; 10. Sliding frame; 11. Cutting head.

[0021] 12. Support leg; 13. Stripper plate; 14. Main lifting screw; 15. Main lifting guide column; 16. Lifting seat; 17. Buffer block; 18. Motor; 19. Pin device; 20. Base; 21. Slide groove; 22. Slider 1;

[0022] 23. Limiting groove; 24. Limiting block; 25. Slider II; 26. Suction cup assembly; 27. Auxiliary wheel; 28. Positioning baffle; 29. ​​Suction cup bracket; 30. Universal suction cup; 31. Vacuum generator; 32. Air pipe; 33. Through hole; 34. Groove; 35. Pin body; 36. Pin head; 37. Pin tail; 38. Limiting block II; 39. Damping spring. Detailed Implementation

[0023] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0024] Reference Figure 1-6 As shown, a workpiece loading and unloading device for a laser cutting machine includes a machine body 1, a frame 2, and a mounting bracket 3. A placement plate 4 is fixedly installed on the top of the machine body 1. A fixed seat 6 is provided along the length of the placement plate 4. The fixed seat 6 is located on both sides of the worktable 5. A cylinder 7 is fixedly installed in the middle of the fixed seat 6. A sliding seat 8 is snapped onto the top of the fixed seat 6. The sliding seat 8 slides along the length of the fixed seat 6. A baffle 9 is fixedly connected to the output end of the cylinder 7. A sliding frame 10 is fixedly connected above the two sliding seats 8. A cutting head 11 is slidably connected inside the sliding frame 10. The cutting head 11 slides along the sliding frame 10. Multiple support legs 12 are fixedly installed at the bottom of the machine body 1. A positioning baffle 28 is fixedly installed at the top right end of the machine body 1. A servo motor drives the cutting head 11 and the sliding frame 10 to cooperate in cutting operations. Then, a suction cup assembly 26 places the cut material on the right side of the placement plate 4. The positioning baffle 28 prevents the material from falling.

[0025] A stripper plate 13 is placed at the center of frame 2. The frame design utilizes thickened steel plates and aluminum alloy profiles to reduce vibration and deformation during loading. Multiple auxiliary wheels 27 are fixedly installed at the bottom of frame 2 to facilitate frame movement, position determination, and material transport. Main lifting screws 14 are rotatably connected to the middle of the inner walls at both ends of frame 2. Main lifting guide columns 15 are provided on both sides of the main lifting screws 14. Lifting seats 16 are threaded onto the surface of the main lifting screws 14, and the interior of the lifting seats 16 is slidably connected to the main lifting guide columns 15. A buffer block 1 is provided on the inner side below the stripper plate 13. 7. The stripper plate 13 is fixedly connected to the lifting seats 16 on both sides. Motors 18 are fixedly installed on both sides of the frame 2. Gears are connected between the output ends of the motors 18. A pair of meshing gears connects the drive ends of the two main lifting screws 14. When one screw rotates, the other screw will also rotate synchronously through the gears. The motors 18 on the frame 2 drive the main lifting screws 14 to rotate. The main lifting screws 14, through cooperation with the nuts on the lifting seats 16, convert the rotational motion of the main lifting screws 14 into the linear motion of the lifting seats 16. The linear motion is then transmitted through the slidingly connected lifting seats 16 from the lifting seats 16. The stripper plate 13 is moved, and the right end of the frame 2 is connected to the machine tool body 1 via a pin device 19. The pin device 19 includes a pin body 35, a pin head 36, a pin tail 37, a second limiting block 38, and a damping spring 39. The pin head 36 is provided at the bottom of the pin body 35, and the pin tail 37 is fixedly connected to the top of the pin body 35. The pin tail 37 can be designed with a threaded structure to connect with the pull rod, facilitating the insertion and removal of the pin. The second limiting block 38 is fixedly installed below the pin tail 37, and the damping spring 39 is sleeved on the lower end of the second limiting block 38. A through hole 33 is opened at the right end of the frame 2, and the through hole 33 connects to the pin. The pin device 19 is correspondingly set, and the inner wall of the left side of the machine tool body 1 has a groove 34 that corresponds to the size of the right end of the frame 2. The right end of the frame 2 is engaged with the groove 34. The pin device 19 is installed on both sides of the left end of the machine tool body 1. The right end of the frame 2 is close to and firmly attached to the groove 34 on the inner wall of the left side of the machine tool body 1. The pin head 36 is then engaged in the through hole 33 through the hole on the left side of the machine tool body 1 that connects to the through hole 33. The pin tail 37 and the limiting block 38 are controlled to fix it. The impact force during feeding is absorbed by the devices on the inner walls of both ends and the buffer block on the inner side, making the feeding more stable and improving the working efficiency.

[0026] A base 20 is fixedly mounted on the bottom of the mounting bracket 3. A sliding groove 21 is provided on the top of the base 20. The sliding groove 21 is slidably connected to the mounting bracket 3 via a slider 22. Two limiting grooves 23 are formed on the inner wall of the mounting bracket 3. Limiting blocks 24 are provided inside the two limiting grooves 23. The limiting grooves 23 are slidably connected to the limiting blocks 24 via sliders 25 installed inside. Both limiting blocks 24 are fixedly connected to the top of the suction cup assembly 26. A similar mounting bracket 3 is fixedly mounted on the other end of the frame 2. Both limiting blocks 24 are fixedly connected to the other side of the top of the suction cup assembly 26. Identical drive motors are mounted on both mounting brackets 3. A synchronous shaft connects the two drive motors to ensure that the movements on both sides are completely synchronized. The suction cup assembly 26 includes a suction cup bracket 29 and a universal suction cup 30. The top of the suction cup bracket 29 is fixedly connected to the limiting block 24. Several universal suction cups 30 are fixedly connected to the bottom of the suction cup bracket 29. The sliding control of the second slider 25 in the limiting groove 23 by the drive motor controls the suction cup device 26 to adsorb the plate. The sliding control of the first slider 22 by the drive motor on both sides of the base 20 controls the mounting frame 3 to move towards the machine tool body 1. The position of the plate is determined by the vision system on the top of the universal suction cup 30 and the control of the baffle 9 by the cylinder 7. The vision system is located above the universal suction cup. This solution determines the position of the workpiece by the combined action of the vision system above the universal suction cup, the cylinder and the baffle, which greatly ensures the accuracy of the workpiece position. A vacuum generator 31 is fixedly installed at the top center of the suction cup bracket 29. The vacuum generator 31 is connected to the universal suction cup 30 through the air pipe 32.

[0027] Working principle: When the workpiece loading and unloading device of the laser cutting machine is in use, the right end of the frame 2 approaches and firmly fits into the groove 34 on the inner wall of the left side of the machine body 1. The pin head 36 is then engaged in the through hole 33 through the hole on the left side of the machine body 1, and the pin tail 37 and the limit block 38 are controlled to fix it. The motor 18 on the frame 2 drives the main lifting screw 14 to rotate. The main lifting screw 14, through its engagement with the nut on the lifting seat 16, converts the rotational motion of the main lifting screw 14 into the linear motion of the lifting seat 16. This linear motion is then achieved through the lifting mechanism slidably connected to the lifting seat 16. The seat 16 drives the stripper plate 13 to move. The sliding control of the slider 25 in the limiting groove 23 by the drive motor controls the suction cup assembly 26 to pick up the plate. The slider 22 driven by the drive motors on both sides of the base 20 controls the mounting frame 3 to move towards the machine tool body 1. The vision system and cylinder 7 at the top of the universal suction cup 30 control the baffle 9 to determine the position. After the position is determined, the servo motor drives the cutting head 11 and the sliding frame 10 to cooperate in the cutting operation. Then the suction cup assembly 26 places the cut plate on the right side of the placement plate 4. The positioning baffle 28 prevents the plate from falling.

Claims

1. A workpiece loading and unloading device for a laser cutting machine, comprising a machine tool body (1), a frame (2), and a mounting bracket (3), characterized in that: A placement plate (4) is fixedly installed on the top of the machine tool body (1). A fixed seat (6) is provided on the placement plate (4) along the length direction. The fixed seat (6) is located on both sides of the worktable (5). A cylinder (7) is fixedly installed in the middle of the fixed seat (6). A sliding seat (8) is snapped into the top of the fixed seat (6). The sliding seat (8) slides along the length direction of the fixed seat (6). A baffle (9) is fixedly connected to the output end of the cylinder (7). A sliding frame (10) is fixedly connected above the two sliding seats (8). A cutting head (11) is slidably connected inside the sliding frame (10). The cutting head (11) slides along the sliding frame (10). Multiple support legs (12) are fixedly installed at the bottom of the machine tool body (1). The frame (2) is located on one side of the machine tool body (1). A stripper plate (13) is placed at the center of the frame (2). A main lifting screw (14) is rotatably connected to the middle of the inner wall of both ends of the frame (2). A main lifting guide column (15) is provided on both sides of the main lifting screw (14). A lifting seat (16) is threadedly connected to the surface of the main lifting screw (14). The interior of the lifting seat (16) is slidably connected to the main lifting guide column (15). A buffer block (17) is provided below the stripper plate (13). The stripper plate (13) is fixedly connected to the lifting seats (16) on both sides. A motor (18) is fixedly installed on both sides of the frame (2). The output end of the motor (18) is fixedly connected to the main lifting screw (14). The right end of the frame (2) is connected to the machine tool body (1) through a pin device (19). The mounting bracket (3) has a base (20) installed at its bottom. The base (20) has a sliding groove (21) at its top. The sliding groove (21) is slidably connected to the mounting bracket (3) by a slider (22) installed inside it. The inner wall of the mounting bracket (3) has two limiting grooves (23). The two limiting grooves (23) have limiting blocks (24) installed inside them. The limiting grooves (23) are slidably connected to the limiting blocks (24) by a slider (25) installed inside them. The two limiting blocks (24) are fixedly connected to the top of the suction cup assembly (26). The other end of the frame (2) is fixedly mounted with the same mounting bracket (3). The two limiting blocks (24) are fixedly connected to the other side of the top of the suction cup assembly (26).

2. The workpiece loading and unloading device for a laser cutting machine according to claim 1, characterized in that, The frame (2) has multiple auxiliary wheels (27) fixedly installed at the bottom, and gears are connected between the output ends of the two motors (18).

3. The workpiece loading and unloading device for a laser cutting machine according to claim 1, characterized in that, A positioning baffle (28) is fixedly installed on the top right end of the machine tool body (1).

4. The workpiece loading and unloading device for a laser cutting machine according to claim 1, characterized in that, The suction cup assembly (26) includes a suction cup bracket (29) and a universal suction cup (30). The top of the suction cup bracket (29) is fixedly connected to a limiting block (24). Several universal suction cups (30) are fixedly connected to the bottom of the suction cup bracket (29). A vacuum generator (31) is fixedly installed at the top center of the suction cup bracket (29). The vacuum generator (31) is connected to the universal suction cup (30) through an air pipe (32).

5. The workpiece loading and unloading device for a laser cutting machine according to claim 1, characterized in that, The frame (2) has a through hole (33) at the right end, and the through hole (33) is correspondingly set with the pin device (19). The inner wall of the left side of the machine tool body (1) has a groove (34) corresponding to the size of the right end of the frame (2). The right end of the frame (2) is engaged with the groove (34). The pin device (19) is installed on both sides of the left end of the machine tool body (1).

6. The workpiece loading and unloading device for a laser cutting machine according to claim 1, characterized in that, The pin device (19) includes a pin body (35), a pin head (36), a pin tail (37), a second limiting block (38), and a damping spring (39). The pin head (36) is provided at the bottom of the pin body (35), and the pin tail (37) is fixedly connected to the top of the pin body (35). The second limiting block (38) is fixedly installed below the pin tail (37), and the damping spring (39) is sleeved at the lower end of the second limiting block (38).

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