Double-clamping type laser pipe cutting machine with automatic feeding and discharging functions

Abstract

The invention provides a double-clamping type laser pipe cutting machine capable of achieving automatic feeding and discharging, belongs to the technical field of laser cutting equipment, and solves the technical problems that an existing pipe cutting machine is low in feeding and discharging automation degree, cannot conduct zero-tailing cutting and the like. Comprising a second auxiliary discharging mechanism, a slag collecting trolley and a pipe cutting rack mechanism, the pipe cutting rack mechanism comprises a horizontal base and a vertical plate frame, a front chuck mechanism and a plurality of auxiliary feeding mechanisms are arranged at the upper end of the horizontal base, a movable laser head mechanism is arranged on the front side of the upper end of the vertical plate frame, and a rear chuck mechanism is slidably arranged on the vertical plate frame; a rear chuck mechanism, a dust hood and a first auxiliary discharging mechanism are arranged on the left end face of the vertical plate frame. The pipe cutting device can be used for clamping and limiting pipes, assisting in feeding and automatically feeding and discharging, is efficient, convenient and fast to use, high in automation degree, compatible with various pipe specifications, wide in application range and capable of automatically positioning and cutting the pipes and efficiently producing the pipes, and the rear chuck mechanism is installed in a side hanging mode, the cutting position is accurately controlled, and zero-tailing cutting is achieved.

Description

Technical Field

[0001] This invention belongs to the field of laser cutting equipment technology, and relates to a dual-card tube cutting machine, particularly a dual-card laser tube cutting machine with automatic loading and unloading. Background Technology

[0002] Laser tube cutting machines are efficient and precise tube processing equipment widely used in metal processing, automotive manufacturing, aerospace, and construction engineering. In actual production, the tube feeding method directly affects production efficiency and processing accuracy. Traditional feeding methods typically rely on manual or semi-automatic feeding racks, resulting in low feeding efficiency, high labor intensity, uneven tube placement, and problems such as tube stacking or misalignment, thus affecting cutting accuracy, low automation, and low processing efficiency.

[0003] Existing pipe cutting machines typically employ a single chuck structure or use a cylinder to move the front chuck, which leads to several problems: low cutting accuracy, which affects processing efficiency; the single chuck structure cannot effectively cut the tail material of the pipe, resulting in pipe waste; and when tail material cutting is required, it usually needs to be done manually, which increases labor costs and material waste.

[0004] Therefore, we propose an automatic loading and unloading dual-clamp laser tube cutting machine. This machine can clamp and limit the tubes, and automatically load them with a rear chuck mechanism. It is highly efficient, convenient, and automated. By side-mounting the rear chuck mechanism, the cutting position can be precisely controlled, improving material utilization, reducing consumable costs, and achieving zero-tail cutting. In conjunction with the front chuck mechanism, it is compatible with various tube specifications and has a wide range of applications. It can automatically position and cut tubes, achieving high-efficiency production. It also sucks up the fumes generated during cutting and collects the molten slag, ensuring a clean working environment. It can automatically transport the cut tubes and complete the automatic unloading. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing an automatic loading and unloading dual-cassette laser tube cutting machine. The technical problem this invention aims to solve is: how to achieve fully automatic, zero-tail-material-constrained, rapid cutting of various specifications of tubes using an automatic loading and unloading dual-cassette laser tube cutting machine.

[0006] The objective of this invention can be achieved through the following technical solutions: An automatic loading and unloading dual-card laser tube cutting machine includes an auxiliary unloading mechanism two, a slag collection trolley, and a tube cutting frame mechanism arranged sequentially from front to back. The tube cutting frame mechanism includes a horizontal base and a vertical plate frame. The upper end of the horizontal base is provided with a front chuck mechanism and several equidistantly distributed auxiliary loading mechanisms arranged sequentially from front to back. The upper front side of the vertical plate frame is provided with a moving laser head mechanism. The left end of the vertical plate frame is provided with a rear chuck mechanism that slides in the front-back direction. The left end face of the vertical plate frame is provided with a rear chuck mechanism, a dust suction hood, and an auxiliary unloading mechanism one arranged sequentially from back to front. The rear chuck mechanism slides in the front-back direction. The auxiliary unloading mechanism one is located between the slag collection trolley and the auxiliary unloading mechanism two. The dust suction hood is connected to an external vacuum cleaner and is directly opposite the lower end of the moving laser head mechanism.

[0007] The working principle of this invention is as follows: When cutting pipes, the pipes are conveyed to a number of auxiliary feeding mechanisms. The auxiliary feeding mechanisms then clamp and limit the pipes. Next, the rear chuck mechanism slides on the pipe cutting frame mechanism and moves to the end of the pipe. Then, the auxiliary feeding mechanisms move synchronously to lift the pipes so that they face the rear chuck mechanism. The jaws of the rear chuck mechanism then extend into the pipe, supporting the pipes from the inside out and driving the pipes forward. During the movement of the pipes, the auxiliary feeding mechanisms return to their initial positions in sequence to avoid the rear chuck mechanism, allowing the pipes to pass through the front chuck mechanism. The timing of clamping by the front chuck mechanism is adjusted according to the size of the pipes to be cut, automatically positioning and clamping the pipes to achieve fully automatic feeding, which facilitates subsequent cutting. Through the double chuck structure, it is compatible with various pipe specifications, and multiple sections can be cut in a single feeding, improving processing efficiency. During cutting, the moving laser head mechanism moves above the pipe cutting point and emits a laser cutting line. Simultaneously, the rear and front chuck mechanisms rotate synchronously to cooperate with the moving laser head mechanism for cutting. Molten slag falls into the slag collection cart and is collected. The dust generated during cutting is sucked away by an external vacuum cleaner through a dust hood, ensuring a clean working environment. The cut pipe falls onto the upper part of the auxiliary unloading mechanism and the auxiliary loading mechanism. Then, the auxiliary unloading mechanism and the auxiliary loading mechanism move synchronously to transport the cut pipe out. The rear chuck mechanism is installed in a side-mounted manner to improve accuracy. In cooperation with the moving laser head mechanism, "zero tail material" cutting is achieved. The entire process realizes fully automatic loading and unloading, zero tail material cutting, and high-efficiency production.

[0008] The pipe cutting frame mechanism has an L-shaped structure. The vertical plate frame is fixed on the upper right side of the horizontal base. The length of the horizontal base is less than the length of the vertical plate frame. Two clearance openings are opened on the front side of the left end of the vertical plate frame. The dust suction hood is fixed in the clearance opening on the rear side. A slide rail seat and a rack are provided in the front-rear direction on the left end face of the vertical plate frame. Both clearance openings are located on the front side of the rack.

[0009] With the above structure, the vertical plate frame and horizontal base are used to install other components, the rear clearance opening is used to install the dust hood, and the front clearance opening is used to install the auxiliary feeding mechanism, slide rail seat, and rack to facilitate the movement of the rear chuck mechanism.

[0010] The rear chuck mechanism includes a movable seat, which is slidably mounted on a slide rail seat. A movable motor is fixed on the movable seat, and a drive gear is fixed on the output shaft of the movable motor. The drive gear meshes with a rack. A mounting seat is fixed on the movable seat, and a fixed seat is fixed on the mounting seat. A drive motor is fixed on the rear side of the fixed seat, and a rotating seat is rotatably mounted on the front side of the fixed seat. A four-corner electric chuck is mounted on the front side of the rotating seat. The output shaft of the drive motor is connected to the rotating shaft of the rotating seat.

[0011] With the above structure, the output shaft of the moving motor drives the drive gear to rotate. The drive gear meshes with the rack and pinion, and the reaction force drives the moving seat to slide on the slide rail seat. When cutting, the output shaft of the drive motor drives the rotating shaft of the rotating seat to rotate. The rotating seat drives the four corner electric chucks to rotate, thereby performing rotary cutting. The fixed seat facilitates the installation of the rotating seat and the drive motor.

[0012] The mobile laser head mechanism includes a slide rail base two, which is fixed to the upper front side of the vertical plate frame. A rack two is fixed on the slide rail base two. A movable seat two is slidably mounted on the upper end of the slide rail base two. A movable motor two is fixed on the upper end of the movable seat two. A drive gear two is fixed on the output shaft of the movable motor two and meshes with the rack two. A slide rail base three is fixed on the left side of the movable seat two. The axis of the movable seat two is perpendicular to the axis of the slide rail base three. A rack three is fixed on the upper end of the slide rail base three. A movable seat three is slidably mounted on the upper end of the slide rail base three. A movable motor three is fixed on the upper end of the movable seat three. A drive gear three is fixed on the output shaft of the movable motor three and meshes with the rack three. A vertically arranged electric lead screw is fixed on the front side of the slide rail base three. A laser cutting head is detachably mounted on the lead screw slide of the electric lead screw.

[0013] Using the above structure, the output shaft of the second moving motor drives the second driving gear to rotate. The second driving gear meshes with the second rack, and in turn, drives the second moving seat to slide on the second slide rail. The output shaft of the third moving motor drives the third driving gear to rotate. The third driving gear meshes with the third rack, and in turn, drives the third moving seat to slide on the third slide rail. At the same time, the third moving seat drives the electric lead screw to move. The lead screw slide of the electric lead screw drives the laser cutting head to move, thereby adjusting the cutting position.

[0014] The auxiliary feeding mechanism includes a slide rail seat four, which is fixed on the left end face of the vertical plate frame. The slide rail seat four is located on the left side of the clearance opening on the front side. A movable seat four is slidably mounted on the slide rail seat four. A vertically arranged rack four is fixed on the right end face of the movable seat four. A movable motor four is fixed on the rear side of the slide rail seat four. The movable motor four is located inside the clearance opening. A drive gear four is fixed on the output shaft of the movable motor four. The drive gear four meshes with the rack four. A feeding plate one is rotatably mounted at the middle position on the left side of the movable seat four. Two electric push rods one, which are symmetrically arranged front and rear, are hinged between the feeding plate one and the movable seat four.

[0015] With the above structure, the cut pipe falls onto the feed plate 1. The output shaft of the moving motor 4 drives the drive gear 4 to rotate. The drive gear 4 meshes with the rack 4, and the reaction force drives the moving seat 4 to slide on the slide rail seat 4. Then the telescopic end of the electric push rod 1 retracts, causing the feed plate 1 to rotate, thereby conveying the cut pipe out.

[0016] The front chuck mechanism includes a fixed base 2 and a four-corner electric chuck 2. The four-corner electric chuck 2 is hollow in the middle. The fixed base 2 is fixed to the front side of the upper end of the horizontal base, and the fixed base 2 corresponds to the position of the rear clearance opening. The axis of the four-corner electric chuck 2 is collinear with the axis of the four-corner electric chuck 1. The rotating shaft of the four-corner electric chuck 2 is rotatably set inside the fixed base 2. The rotating shaft of the four-corner electric chuck 2 is hollow. A driven gear is fixed on the rotating shaft of the four-corner electric chuck 2. The driven gear is located inside the fixed base 2. A drive motor 2 is fixed to the rear side of the fixed base 2. A drive gear 7 is fixed on the output shaft of the drive motor 2. The drive gear 7 meshes with the driven gear. The jaws of the four-corner electric chuck 2 are detachably equipped with clamping brackets. The clamping brackets in the vertical direction and the horizontal direction are symmetrically arranged. The two clamping brackets in the horizontal direction are located in front of the clamping brackets in the vertical direction. Several clamping rollers are rotatably provided at the ends of the clamping brackets. The clamping rollers on the four clamping brackets cooperate with each other to form a clamping cavity.

[0017] Using the above structure, the output shaft of the second drive motor drives the seventh drive gear to rotate, the seventh drive gear drives the driven gear to rotate, and the driven gear drives the shaft of the second four-corner electric chuck to rotate inside the second fixed base, thereby driving the second four-corner electric chuck to rotate. During clamping, the pipe passes through the rotating shaft of the fixed base 2 and the four-corner electric chuck 2 and the inside of the clamping cavity. The four jaws of the four-corner electric chuck 2 move towards the center of the chuck at the same time. The clamping roller drives the corresponding clamping bracket to move, and the clamping bracket drives the corresponding clamping roller to move until the clamping roller abuts against the pipe. All the clamping rollers cooperate to clamp the pipe.

[0018] The auxiliary feeding mechanism 2 includes a feeding frame, which has an L-shaped structure. A vertically arranged rack 5 and a slide rail seat 5 are fixed on the left side of the upright frame of the feeding frame. A movable seat 5 is slidably arranged on the slide rail seat 5. A movable motor 5 is fixed on the movable seat 5. A drive gear 5 is fixed on the output shaft of the movable motor 5. The drive gear 5 meshes with the rack 5. A support frame is hinged to the upper end of the movable seat 5. Two electric push rods 2 are hinged between the support frame and the movable seat 5 and are arranged symmetrically in front and behind.

[0019] Using the above structure, the output shaft of the moving motor five drives the drive gear five to move. The drive gear five meshes with the rack five, and the reaction force drives the moving seat five to slide on the slide rail seat five. During unloading, the telescopic ends of the two electric push rods two retract, driving the support frame to rotate, thereby conveying the cut pipes on the support frame out.

[0020] The auxiliary feeding mechanism includes a movable seat 6, which is fixed to the upper end of a horizontal base. A movable motor 6 is fixed to the rear side of the movable seat 6, and a drive gear 6 is fixed to the output shaft of the movable motor 6. A slide rail seat 6 is slidably provided on the front side of the movable seat 6, and a vertically arranged rack 6 is provided on the rear side of the slide rail seat 6. The rack 6 meshes with the drive gear 6. Two symmetrically arranged mounting plates are slidably provided on the front side of the slide rail seat 6. Each mounting plate is hinged with a fixing block. An electric push rod 4 is hinged between the fixing block and the lower front end of the mounting plate. A limit roller is rotatably provided on each fixing block. A vertically sliding seat is slidably provided on the front side of the slide rail seat 6. A connecting rod is hinged between the upper front end of the two mounting plates and the sliding seat. An electric push rod 3 is fixed to the lower front end of the slide rail seat 6. The telescopic end of the electric push rod 3 is fixedly connected to one of the mounting plates. A guide roller is rotatably provided on the upper end of the slide rail seat 6.

[0021] Using the above structure, the pipe is conveyed to several auxiliary feeding mechanisms, where guide rollers support it. Then, the telescopic ends of two electric push rods extend, driving corresponding fixed blocks to rotate. These fixed blocks then rotate corresponding limiting rollers to a vertical position, limiting the pipe between the two limiting rollers. Next, the telescopic end of electric push rod three drives the right-side mounting plate to slide to the left. The right-side mounting plate then moves the connecting rod on the same side, which in turn moves the sliding seat. The slide rail seat 6 slides downwards, driving the connecting rod on the left side to move. The connecting rod on the left side drives the mounting plate on the left side to move to the right, thereby driving the two limiting rollers to move synchronously towards the middle, clamping the pipe. During feeding, the output shaft of the moving motor 6 drives the drive gear 6 to rotate. The drive gear 6 meshes with the rack 6, and the reaction force drives the rack 6 to move. The rack 6 drives the slide rail seat 6 to slide on the moving seat 6, thereby driving the two limiting rollers and the pipe in the middle to move upwards, so that the pipe is aligned with the four corner electric chucks 1, which facilitates feeding.

[0022] Compared with existing technologies, this automatic loading and unloading dual-card laser tube cutting machine has the following advantages: 1. The pipes are clamped and limited by several auxiliary feeding mechanisms, and automatically fed by the rear chuck mechanism, which is efficient, convenient and highly automated.

[0023] 2. By side-mounting the rear chuck mechanism, the cutting position can be precisely controlled, improving material utilization, reducing material costs, achieving zero-tail cutting, and cooperating with the front chuck mechanism to be compatible with various pipe specifications and have a wide range of applications.

[0024] 3. The tube is automatically positioned and cut using a moving laser head mechanism, resulting in high-efficiency production.

[0025] 4. The dust generated during cutting is sucked up by connecting an external vacuum cleaner through a dust hood, and the molten slag generated during cutting is collected by a slag collection cart to ensure a clean working environment.

[0026] 5. Through the cooperation of the auxiliary feeding mechanism and the auxiliary unloading mechanism, the cut pipe is automatically conveyed to complete the automatic unloading. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the present invention.

[0028] Figure 2 This is a schematic diagram of the frame mechanism in this invention.

[0029] Figure 3 This is a schematic diagram of the moving laser head mechanism in this invention.

[0030] Figure 4 This is a schematic diagram of the rear chuck mechanism in this invention.

[0031] Figure 5 This is a schematic diagram of the auxiliary feeding mechanism 1 in this invention.

[0032] Figure 6 This is a schematic diagram of the front chuck mechanism in this invention.

[0033] Figure 7 This is a schematic diagram of the auxiliary feeding mechanism 2 in this invention.

[0034] Figure 8 This is a schematic diagram of the rear three-dimensional structure of the auxiliary feeding mechanism in this invention.

[0035] Figure 9 This is a schematic diagram of the front three-dimensional structure of the auxiliary feeding mechanism in this invention.

[0036] In the diagram: 1. Pipe cutting frame mechanism; 2. Auxiliary feeding mechanism; 3. Rear chuck mechanism; 4. Front chuck mechanism; 5. Slag collection trolley; 6. Auxiliary unloading mechanism two; 7. Auxiliary unloading mechanism one; 8. Dust hood; 9. Moving laser head mechanism; 10. Vertical plate frame; 11. Horizontal base; 12. Clearance opening; 13. Rack one; 14. Moving motor one; 15. Drive motor one; 16. Fixed seat one; 17. Rotating seat; 18. Four-corner electric chuck one; 19. Mounting seat; 20. Moving seat one; 21. Slide rail seat two; 22. Moving motor three; 23. Electric lead screw; 24. Moving seat two; 25. Rack two; 26. Laser cutting head; 27. Slide rail seat three; 28. 29. Rack and pinion; 30. Moving seat; 31. Slide rail seat; 32. Moving motor; 33. Unloading plate; 34. Electric push rod; 35. Drive motor; 36. Fixed seat; 37. Clamping bracket; 38. Clamping roller; 39. Driven gear; 40. Unloading rack; 41. Support frame; 42. Electric push rod; 43. Moving motor; 44. Rack and pinion; 45. Moving seat; 46. Moving seat; 47. Electric push rod; 48. Electric push rod; 49. Limiting roller; 50. Slide rail seat; 51. Sliding seat; 52. Mounting plate; 53. Fixed block; 54. Guide roller; 55. Connecting rod; 56. Four-corner electric chuck. Detailed Implementation

[0037] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0038] like Figures 1-9 As shown, this automatic loading and unloading dual-card laser tube cutting machine includes an auxiliary unloading mechanism 2 6, a slag collection cart 5, and a tube cutting frame mechanism 1 arranged sequentially from front to back. The tube cutting frame mechanism 1 includes a horizontal base 11 and a vertical plate frame 10. The upper end of the horizontal base 11 is provided with a front chuck mechanism 4 and several equidistantly distributed auxiliary loading mechanisms 2 arranged sequentially from front to back. The upper front side of the vertical plate frame 10 is provided with a moving laser head mechanism 9. The left end of the vertical plate frame 10 is provided with a rear chuck mechanism 3 that slides in the front-back direction. The left end of the vertical plate frame 10 is provided with a rear chuck mechanism 3, a dust suction hood 8, and an auxiliary unloading mechanism 1 7 arranged sequentially from back to front. The rear chuck mechanism 3 slides in the front-back direction. The auxiliary unloading mechanism 1 7 is located between the slag collection cart 5 and the auxiliary unloading mechanism 2 6. The dust suction hood 8 is connected to an external vacuum cleaner and is directly opposite the lower end of the moving laser head mechanism 9.

[0039] In this embodiment, during pipe cutting, the pipe is fed above several auxiliary feeding mechanisms 2, which then clamp and limit the pipe. Next, the rear chuck mechanism 3 slides on the pipe cutting frame mechanism 1 and moves to the end of the pipe. Then, the auxiliary feeding mechanisms 2 move synchronously to lift the pipe so that it faces the rear chuck mechanism 3. The jaws of the rear chuck mechanism 3 then extend into the pipe, supporting it from the inside out and moving it forward. During the movement of the pipe, the auxiliary feeding mechanisms 2 return to their initial positions in sequence to avoid the rear chuck mechanism 3, allowing the pipe to pass through the front chuck mechanism 4. The front chuck mechanism 4 is adjusted according to the size of the pipe to be cut to automatically position and clamp the pipe, achieving fully automatic feeding and facilitating subsequent cutting. The double chuck structure is compatible with various pipe specifications, and multiple sections can be cut in a single feeding, improving processing efficiency. During cutting, the moving laser head mechanism 9 moves above the pipe cutting point and emits a laser cutting line. At the same time, the rear chuck mechanism 3 and the front chuck mechanism 4 rotate synchronously to cooperate with the moving laser head mechanism 9 for cutting. The molten slag falls into the slag collection cart 5 and is collected. The dust generated during cutting is sucked away by the external vacuum cleaner through the dust suction hood 8 to ensure a clean working environment. The cut pipe falls onto the upper end of the auxiliary unloading mechanism 7 and the auxiliary loading mechanism 2. Then, the auxiliary unloading mechanism 7 and the auxiliary loading mechanism 2 move synchronously to transport the cut pipe out. The rear chuck mechanism 3 is installed in a side-mounted manner to improve accuracy. By cooperating with the moving laser head mechanism 9, "zero tail material" cutting is achieved. The whole process realizes fully automatic loading and unloading, zero tail material cutting, and high-efficiency production.

[0040] The pipe cutting frame mechanism 1 has an L-shaped structure. The vertical plate frame 10 is fixed on the upper right side of the horizontal base 11. The length of the horizontal base 11 is less than the length of the vertical plate frame 10. Two clearance openings 12 are opened on the front side of the left end of the vertical plate frame 10. The dust suction hood 8 is fixed in the clearance opening 12 on the rear side. A slide rail seat 1 and a rack 13 are provided in the front-back direction on the left end face of the vertical plate frame 10. Both clearance openings 12 are located on the front side of the rack 13.

[0041] In this embodiment, the vertical plate frame 10 and the horizontal base 11 are used to install other components, the rear clearance opening 12 is used to install the dust suction hood 8, the front clearance opening 12 is used to install the auxiliary feeding mechanism 7, and the slide rail seat 1 and the rack 13 facilitate the movement of the rear chuck mechanism 3.

[0042] The rear chuck mechanism 3 includes a movable seat 20, which is slidably mounted on a slide rail seat 1. A movable motor 14 is fixed on the movable seat 20. A drive gear 1 is fixed on the output shaft of the movable motor 14. The drive gear 1 meshes with a rack 13. A mounting seat 19 is fixed on the movable seat 20. A fixed seat 16 is fixed on the mounting seat 19. A drive motor 15 is fixed on the rear side of the fixed seat 16. A rotating seat 17 is rotatably mounted on the front side of the fixed seat 16. A four-corner electric chuck 18 is mounted on the front side of the rotating seat 17. The output shaft of the drive motor 15 is connected to the rotating shaft of the rotating seat 17.

[0043] In this embodiment, the output shaft of the moving motor 14 drives the drive gear 1 to rotate. The drive gear 1 meshes with the rack 13 and reacts to drive the moving seat 20 to slide on the slide rail seat 1. When cutting, the output shaft of the drive motor 15 drives the rotating shaft of the rotating seat 17 to rotate. The rotating seat 17 drives the four-corner electric chuck 18 to rotate, thereby performing rotary cutting. The fixed seat 16 facilitates the installation of the rotating seat 17 and the drive motor 15.

[0044] The movable laser head mechanism 9 includes a slide rail base 21, which is fixed to the upper front side of the vertical plate frame 10. A rack 25 is fixed on the slide rail base 21. A movable seat 24 is slidably mounted on the upper end of the slide rail base 21. A movable motor 2 is fixed on the upper end of the movable seat 24. A drive gear 2 is fixed on the output shaft of the movable motor 2, and the drive gear 2 meshes with the rack 25. A slide rail base 3 27 is fixed on the left side of the movable seat 24. The axis of the movable seat 24 is parallel to the slide rail. The axis of the slide rail seat 27 is perpendicular to each other. A rack 28 is fixed on the upper end of the slide rail seat 27. A movable seat 29 is slidably provided on the upper end of the slide rail seat 27. A movable motor 22 is fixed on the upper end of the movable seat 29. A drive gear 3 is fixed on the output shaft of the movable motor 22. The drive gear 3 meshes with the rack 28. A vertically arranged electric lead screw 23 is fixed on the front side of the slide rail seat 27. A laser cutting head 26 is detachably provided on the lead screw slide of the electric lead screw 23.

[0045] In this embodiment, the output shaft of the second moving motor drives the second driving gear to rotate. The second driving gear meshes with the second rack 25, and in turn drives the second moving seat 24 to slide on the second slide rail seat 21. The output shaft of the third moving motor 22 drives the third driving gear to rotate. The third driving gear meshes with the third rack 28, and in turn drives the third moving seat 29 to slide on the third slide rail seat 27. At the same time, the third moving seat 29 drives the electric lead screw 23 to move. The lead screw slide of the electric lead screw 23 drives the laser cutting head 26 to move, thereby adjusting the cutting position.

[0046] The auxiliary feeding mechanism 7 includes a slide rail seat 4 30, which is fixed on the left end face of the vertical plate frame 10. The slide rail seat 4 30 is located on the left side of the clearance opening 12 on the front side. A movable seat 4 is slidably mounted on the slide rail seat 4 30. A vertically arranged rack 4 is fixed on the right end face of the movable seat 4. A movable motor 4 31 is fixed on the rear side of the slide rail seat 4 30. The movable motor 4 31 is located inside the clearance opening 12. A drive gear 4 is fixed on the output shaft of the movable motor 4 31. The drive gear 4 meshes with the rack 4. A feeding plate 1 32 is rotatably mounted at the middle position on the left side of the movable seat 4. Two electric push rods 1 33 are hinged between the feeding plate 1 32 and the movable seat 4 and are arranged symmetrically in front and behind.

[0047] In this embodiment, the cut pipe falls onto the feed plate 32. The output shaft of the moving motor 31 drives the drive gear 4 to rotate. The drive gear 4 meshes with the rack 4, and the reaction force drives the moving seat 4 to slide on the slide rail seat 30. Then the telescopic end of the electric push rod 33 retracts, causing the feed plate 32 to rotate, thereby conveying the cut pipe out.

[0048] The front chuck mechanism 4 includes a fixed base 35 and a four-corner electric chuck 56. The shaft of the four-corner electric chuck 56 is hollow in the middle. The fixed base 35 is fixed to the front side of the upper end of the horizontal base 11, and the fixed base 35 corresponds to the position of the rear clearance opening 12. The axis of the four-corner electric chuck 56 is collinear with the axis of the four-corner electric chuck 18. The shaft of the four-corner electric chuck 56 is rotatably mounted inside the fixed base 35. The shaft of the four-corner electric chuck 56 is hollow, and a driven gear 38 is fixed on the shaft of the four-corner electric chuck 56. The driven gear 38 is located on the fixed base. Inside the second 35, a drive motor 34 is fixed to the rear side of the fixed base 35. A drive gear 7 is fixed on the output shaft of the drive motor 34. The drive gear 7 meshes with the driven gear 38. The jaws of the four-corner electric chuck 256 are detachably equipped with clamping brackets 36. The clamping brackets 36 in the vertical and horizontal directions are symmetrically arranged, and the two clamping brackets 36 in the horizontal direction are located in front of the clamping brackets 36 in the vertical direction. Several clamping rollers 37 are rotatably provided at the ends of the clamping brackets 36. The clamping rollers 37 on the four clamping brackets 36 cooperate with each other to form a clamping cavity.

[0049] In this embodiment, during cutting, the output shaft of the second drive motor 34 drives the seventh drive gear to rotate, the seventh drive gear drives the driven gear 38 to rotate, and the driven gear 38 drives the rotating shaft of the second four-corner electric chuck 56 to rotate inside the fixed base 35, thereby driving the second four-corner electric chuck 56 to rotate. During clamping, the pipe passes through the shaft of the fixed base 2 35, the four-corner electric chuck 2 56 and the inside of the clamping cavity. The four jaws of the four-corner electric chuck 2 56 move towards the center of the chuck at the same time. The clamping roller 37 drives the corresponding clamping bracket 36 to move. The clamping bracket 36 drives the corresponding clamping roller 37 to move until the clamping roller 37 abuts against the pipe. All the clamping rollers 37 cooperate to clamp the pipe.

[0050] The auxiliary unloading mechanism 26 includes an unloading frame 39, which has an L-shaped structure. A vertically arranged rack 5 43 and a slide rail seat 5 are fixed on the left side of the upright frame of the unloading frame 39. A movable seat 5 44 is slidably arranged on the slide rail seat 5. A movable motor 5 42 is fixed on the movable seat 5 44. A drive gear 5 is fixed on the output shaft of the movable motor 5 42. The drive gear 5 meshes with the rack 5 43. A support frame 40 is hinged to the upper end of the movable seat 5 44. Two electric push rods 2 41 are hinged between the support frame 40 and the movable seat 5 44.

[0051] In this embodiment, the output shaft of the moving motor 42 drives the drive gear 5 to move. The drive gear 5 meshes with the rack 43 and reacts to drive the moving seat 44 to slide on the slide rail seat 5. During unloading, the telescopic ends of the two electric push rods 41 retract, driving the support frame 40 to rotate, thereby conveying the cut pipe on the support frame 40 out.

[0052] The auxiliary feeding mechanism 2 includes a movable seat 46, which is fixed to the upper end of the horizontal base 11. A movable motor 45 is fixed to the rear side of the movable seat 46, and a drive gear 6 is fixed to the output shaft of the movable motor 45. A slide rail 50 is slidably provided on the front side of the movable seat 46. A vertically arranged rack 6 is provided on the rear side of the slide rail 50, and the rack 6 meshes with the drive gear 6. Two symmetrically arranged mounting plates 52 are slidably provided on the front side of the slide rail 50, and each mounting plate 52 is hinged with a fixing block 53. Electric push rods 48 are hinged between the fixed block 53 and the lower front end of the mounting plate 52. Limiting rollers 49 are rotatably provided on the fixed block 53. A sliding seat 51 that slides vertically is slidably provided on the front side of the slide rail seat 50. A connecting rod 55 is hinged between the upper front end of the two mounting plates 52 and the sliding seat 51. An electric push rod 47 is fixed to the lower front end of the slide rail seat 50. The telescopic end of the electric push rod 47 is fixedly connected to one of the mounting plates 52. A guide roller 54 is rotatably provided on the upper end of the slide rail seat 50.

[0053] In this embodiment, the pipe is conveyed to several auxiliary feeding mechanisms 2, where it is supported by guide rollers 54. Then, the telescopic ends of two electric push rods 48 extend, driving the corresponding fixed blocks 53 to rotate. The fixed blocks then drive the corresponding limiting rollers 49 to rotate to a vertical position, limiting the pipe between the two limiting rollers 49. Subsequently, the telescopic end of electric push rod 47 drives the right-side mounting plate 52 to slide to the left. The right-side mounting plate 52 drives the connecting rod 55 on the same side to move, and the right-side connecting rod 55 drives the sliding seat 5... 1. The slide rail seat 50 slides downwards, and the slide seat 51 drives the left connecting rod 55 to move. The left connecting rod 55 drives the left mounting plate 52 to move to the right, thereby driving the two limiting rollers 49 to move synchronously towards the middle to clamp the pipe. When feeding, the output shaft of the moving motor 45 drives the drive gear 6 to rotate. The drive gear 6 meshes with the rack 6 and drives the rack 6 to move. The rack 6 drives the slide rail seat 50 to slide on the moving seat 46, thereby driving the two limiting rollers 49 and the pipe in the middle to move upwards, so that the pipe is aligned with the four corner electric chucks 18, which facilitates feeding.

[0054] The working principle of this invention is as follows: During pipe cutting, the pipe is conveyed above several auxiliary feeding mechanisms 2. These mechanisms then clamp and limit the pipe, specifically by the guide rollers 54 supporting it. Next, the telescopic ends of two electric push rods 48 extend, driving the corresponding fixed blocks 53 to rotate. These fixed blocks then rotate the corresponding limiting rollers 49 to a vertical position, limiting the pipe between the two limiting rollers 49. Finally, the telescopic end of an electric push rod 47 drives the right-side mounting plate 52 to slide to the left. The right-side mounting plate 52 then drives the connecting rod 55 on the same side to move... The right-side connecting rod 55 drives the sliding seat 51 to slide downwards on the slide rail seat 6 50. The sliding seat 51 drives the left-side connecting rod 55 to move, and the left-side connecting rod 55 drives the left-side mounting plate 52 to move to the right, thereby driving the two limit rollers 49 to move synchronously towards the center to clamp the pipe. Then, the rear chuck mechanism 3 slides on the pipe cutting frame mechanism 1, that is, the output shaft of the moving motor 14 drives the drive gear 1 to rotate. The drive gear 1 meshes with the rack 13, and the reaction force drives the moving seat 20 to slide on the slide rail seat 1, so that the four-corner electric chuck 18 moves to the end position of the pipe. Subsequently, several auxiliary feeding mechanisms 2 move synchronously to lift the pipe, so that the pipe is straight. The output shaft of the rear chuck mechanism 3, i.e., the moving motor 45, drives the drive gear 6 to rotate. The drive gear 6 meshes with the rack 6, and the reaction force drives the rack 6 to move. The rack 6 drives the slide rail seat 50 to slide on the moving seat 46, thereby driving the two limit rollers 49 and the tube in the middle to move upward, so that the tube is facing the four-corner electric chuck 18. Then, the jaws of the rear chuck mechanism 3 extend into the tube, supporting the tube from the inside out, and driving the tube to move forward. During the movement of the tube, several auxiliary feeding mechanisms 2 return to their initial positions in sequence to avoid the rear chuck mechanism 3, so that the tube passes through the front chuck mechanism 4 and is cut as needed. The size of the pipe is used to adjust when the front chuck mechanism 4 clamps, automatically positioning and clamping the pipe. That is, when clamping, the pipe passes through the rotating shaft of the fixed seat 2 35, the four-corner electric chuck 2 56 and the inside of the clamping cavity. The four jaws of the four-corner electric chuck 2 56 move towards the center of the chuck at the same time. The clamping roller 37 drives the corresponding clamping bracket 36 to move. The clamping bracket 36 drives the corresponding clamping roller 37 to move until the clamping roller 37 abuts against the pipe. All the clamping rollers 37 cooperate to clamp the pipe, realizing fully automatic feeding, which is convenient for subsequent cutting. Through the double chuck structure, it is compatible with a variety of pipe specifications. Multiple sections can be cut in a single feeding, improving processing efficiency. During cutting, the moving laser head mechanism 9 moves above the pipe cutting point, meaning the output shaft of the second moving motor drives the second drive gear to rotate. The second drive gear meshes with the second rack 25, and in turn, drives the second moving seat 24 to slide on the second slide rail 21. The output shaft of the third moving motor 22 drives the third drive gear to rotate. The third drive gear meshes with the third rack 28, and in turn, drives the third moving seat 29 to slide on the third slide rail 27. Simultaneously, the third moving seat 29 drives the electric lead screw 23 to move, and the lead screw slide of the electric lead screw 23... The moving laser cutting head 26 moves to adjust the cutting position and emit a laser cutting line. Simultaneously, the rear chuck mechanism 3 and the front chuck mechanism 4 rotate synchronously to cooperate with the moving laser head mechanism 9 for cutting. Specifically, the output shaft of drive motor 15 drives the rotating shaft of rotating seat 17 to rotate, which in turn drives the four-corner electric chuck 18 to rotate. Subsequently, the output shaft of drive motor 2 34 drives drive gear 7 to rotate, which in turn drives driven gear 38 to rotate. Driven gear 38 then drives the rotating shaft of the four-corner electric chuck 2 56 within the fixed seat 2 35. The rotating part drives the four-corner electric chuck 2 56 and the four-corner electric chuck 1 18 to rotate synchronously. The molten slag falls into the slag collection cart 5 and is collected. The dust generated during cutting is sucked away by the external vacuum cleaner through the dust suction hood 8, ensuring a clean working environment. The cut pipe falls onto the upper end of the auxiliary unloading mechanism 1 7 and the auxiliary loading mechanism 2. Then, the auxiliary unloading mechanism 1 7 and the auxiliary loading mechanism 2 move synchronously to transport the cut pipe out. That is, the cut pipe falls onto the unloading plate 1 32. The output shaft of the moving motor 4 31 drives the drive Gear 4 rotates, driving gear 4 to mesh with rack 4, which in turn drives moving seat 4 to slide on slide rail seat 4 30. Subsequently, the telescopic end of electric push rod 1 33 retracts, causing unloading plate 1 32 to rotate. The output shaft of moving motor 5 42 drives drive gear 5 to move. Drive gear 5 meshes with rack 5 43, which in turn drives moving seat 5 44 to slide on slide rail seat 5. During unloading, the telescopic ends of the two electric push rods 2 41 retract, causing support frame 40 and unloading plate 1 32 to rotate synchronously, conveying the cut pipe out. The chuck mechanism 3 is installed in a side-mounted manner to improve accuracy, and "zero tail material" cutting is achieved by cooperating with moving laser head mechanism 9. The entire process realizes fully automatic loading and unloading, zero tail material cutting, and high-efficiency production.

[0055] In summary, the pipes are clamped and limited by several auxiliary feeding mechanisms 2, and automatically fed by the rear chuck mechanism 3, which is efficient, convenient and highly automated. By side-mounting the rear chuck mechanism 3, the cutting position can be precisely controlled, improving material utilization, reducing material costs, achieving zero tail material cutting, and cooperating with the front chuck mechanism 4 to be compatible with various pipe specifications and have a wide range of applications. The moving laser head mechanism 9 automatically positions and cuts the pipes, enabling efficient production. The dust generated during cutting is sucked up by an external vacuum cleaner connected to the dust hood 8, and the molten slag collected during cutting is collected by the slag collection cart 5 to ensure a clean working environment. The auxiliary feeding mechanism 7 and the auxiliary feeding mechanism 2 work together to automatically convey the cut pipe and complete the automatic feeding.

[0056] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. An automatic loading and unloading dual-card laser tube cutting machine, comprising an auxiliary unloading mechanism two (6), a slag collection trolley (5), and a tube cutting frame mechanism (1) arranged sequentially from front to back, characterized in that, The pipe cutting frame mechanism (1) includes a horizontal base (11) and a vertical plate frame (10). The upper end of the horizontal base (11) is provided with a front chuck mechanism (4) and several equidistant auxiliary feeding mechanisms (2) arranged from front to back. The upper front side of the vertical plate frame (10) is provided with a moving laser head mechanism (9). The left end of the vertical plate frame (10) is provided with a rear chuck mechanism (3) that slides in the front-back direction. The left end of the vertical plate frame (10) is provided with a rear chuck mechanism (3), a dust hood (8) and an auxiliary unloading mechanism (7) arranged from back to front. The rear chuck mechanism (3) slides in the front-back direction. The auxiliary unloading mechanism (7) is located between the slag collection cart (5) and the auxiliary unloading mechanism (6). The dust hood (8) is connected to an external vacuum cleaner and is directly opposite the lower end of the moving laser head mechanism (9).

2. The automatic loading and unloading dual-card laser tube cutting machine according to claim 1, characterized in that, The pipe cutting frame mechanism (1) has an L-shaped structure. The vertical plate frame (10) is fixed on the upper right side of the horizontal base (11). The length of the horizontal base (11) is less than the length of the vertical plate frame (10). Two clearance openings (12) are opened on the front side of the left end of the vertical plate frame (10). The dust hood (8) is fixed in the clearance opening (12) on the rear side. A slide rail seat and a rack (13) are provided on the front and rear sides of the left end of the vertical plate frame (10). Both clearance openings (12) are located on the front side of the rack (13).

3. The automatic loading and unloading dual-card laser tube cutting machine according to claim 2, characterized in that, The rear chuck mechanism (3) includes a movable seat (20), which is slidably mounted on a slide rail seat. A movable motor (14) is fixed on the movable seat (20). A drive gear is fixed on the output shaft of the movable motor (14). The drive gear meshes with a rack (13). A mounting seat (19) is fixed on the movable seat (20). A fixed seat (16) is fixed on the mounting seat (19). A drive motor (15) is fixed on the rear side of the fixed seat (16). A rotating seat (17) is rotatably mounted on the front side of the fixed seat (16). A four-corner electric chuck (18) is mounted on the front side of the rotating seat (17). The output shaft of the drive motor (15) is connected to the rotating shaft of the rotating seat (17).

4. The automatic loading and unloading dual-card laser tube cutting machine according to claim 3, characterized in that, The movable laser head mechanism (9) includes a slide rail seat two (21), which is fixed to the upper front side of the vertical plate frame (10). A rack two (25) is fixed on the slide rail seat two (21). A movable seat two (24) is slidably provided on the upper end of the slide rail seat two (21). A movable motor two is fixed on the upper end of the movable seat two (24). A drive gear two is fixed on the output shaft of the movable motor two. The drive gear two meshes with the rack two (25). A slide rail seat three (27) is fixed on the left side of the movable seat two (24). The axis of the movable seat two (24) is parallel to the slide rail seat three (27). The axis of the slide rail seat three (27) is perpendicular to each other. The upper end of the slide rail seat three (27) is fixed with a rack three (28). The upper end of the slide rail seat three (27) is slidably provided with a moving seat three (29). The upper end of the moving seat three (29) is fixed with a moving motor three (22). The output shaft of the moving motor three (22) is fixed with a drive gear three. The drive gear three meshes with the rack three (28). The front side of the slide rail seat three (27) is fixed with a vertically arranged electric lead screw (23). The lead screw slide of the electric lead screw (23) is detachably provided with a laser cutting head (26).

5. The automatic loading and unloading dual-card laser tube cutting machine according to claim 4, characterized in that, The auxiliary feeding mechanism 1 (7) includes a slide rail seat 4 (30), which is fixed on the left end face of the vertical plate frame (10). The slide rail seat 4 (30) is located on the left side of the clearance opening (12) on the front side. A movable seat 4 is slidably provided on the slide rail seat 4 (30). A vertically arranged rack 4 is fixed on the right end face of the movable seat 4. A movable motor 4 (31) is fixed on the rear side of the slide rail seat 4 (30). The movable motor 4 (3) is located inside the clearance opening (12). A drive gear 4 is fixed on the output shaft of the movable motor 4 (31). The drive gear 4 meshes with the rack 4. A feeding plate 1 (32) is rotatably provided at the middle position on the left side of the movable seat 4. Two electric push rods 1 (33) are hinged between the feeding plate 1 (32) and the movable seat 4 and are arranged symmetrically in front and behind.

6. The automatic loading and unloading dual-card laser tube cutting machine according to claim 5, characterized in that, The front chuck mechanism (4) includes a fixed base two (35) and a four-corner electric chuck two (56). The shaft of the four-corner electric chuck two (56) is hollow in the middle. The fixed base two (35) is fixed on the front side of the upper end of the horizontal base (11), and the fixed base two (35) corresponds to the rear clearance opening (12). The axis of the four-corner electric chuck two (56) is collinear with the axis of the four-corner electric chuck one (18). The shaft of the four-corner electric chuck two (56) is rotatably set inside the fixed base two (35). The shaft of the four-corner electric chuck two (56) is hollow. A driven gear (38) is fixed on the shaft of the four-corner electric chuck two (56). The driven gear (38) is located at Inside the fixed base 2 (35), a drive motor 2 (34) is fixed on the rear side of the fixed base 2 (35). A drive gear 7 is fixed on the output shaft of the drive motor 2 (34). The drive gear 7 meshes with the driven gear (38). The claws of the four-corner electric chuck 2 (56) are detachably provided with clamping brackets (36). The clamping brackets (36) in the up-down direction and the left-right direction are symmetrically arranged. The two clamping brackets (36) in the left-right direction are located in front of the clamping brackets (36) in the up-down direction. Several clamping rollers (37) are rotatably provided at the ends of the clamping brackets (36). The clamping rollers (37) on the four clamping brackets (36) cooperate with each other to form a clamping cavity.

7. The automatic loading and unloading dual-card laser tube cutting machine according to claim 6, characterized in that, The auxiliary feeding mechanism 2 (6) includes a feeding frame (39), which has an L-shaped structure. A vertically arranged rack 5 (43) and a slide rail seat 5 are fixed on the left side of the upright frame of the feeding frame (39). A movable seat 5 (44) is slidably arranged on the slide rail seat 5. A movable motor 5 (42) is fixed on the movable seat 5 (44). A drive gear 5 is fixed on the output shaft of the movable motor 5 (42). The drive gear 5 meshes with the rack 5 (43). A support frame (40) is hinged to the upper end of the movable seat 5 (44). Two electric push rods 2 (41) are hinged between the support frame (40) and the movable seat 5 (44).

8. The automatic loading and unloading dual-card laser tube cutting machine according to claim 7, characterized in that, The auxiliary feeding mechanism (2) includes a movable seat six (46), which is fixed to the upper end of the horizontal base (11). A movable motor six (45) is fixed to the rear side of the movable seat six (46), and a drive gear six is ​​fixed to the output shaft of the movable motor six (45). A slide rail seat six (50) is slidably provided on the front side of the movable seat six (46), and a vertically arranged rack six is ​​provided on the rear side of the slide rail seat six (50). The rack six meshes with the drive gear six. Two mounting plates (52) are slidably arranged on the front side of the slide rail seat six (50), and each mounting plate (52) is hinged with a fixing block (53). Electric push rod four (48) is hinged between the lower front end of the fixed block (53) and the mounting plate (52). The fixed block (53) is rotatably equipped with a limiting roller (49). The front side of the slide rail seat six (50) is slidably equipped with a sliding seat (51) that slides vertically. The upper front end of the two mounting plates (52) is hinged with a connecting rod (55) to the sliding seat (51). The lower front end of the slide rail seat six (50) is fixed with an electric push rod three (47). The telescopic end of the electric push rod three (47) is fixedly connected to one of the mounting plates (52). The upper end of the slide rail seat six (50) is rotatably equipped with a guide roller (54).

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