A laser tube cutting machine with fast clamping and ventilation double-sided chuck

Abstract

The present invention belongs to the technical field of chucks for laser cutting machines, and in particular, is a double-sided chuck for fast clamping and ventilation of laser tube cutting machines, comprising a machine base, a side box is fixedly installed on one side of the machine base, an adjusting mechanism is rotatably installed on the side of the machine base away from the side box, a rotating mechanism for driving the adjusting mechanism to rotate is installed on the side box, four clamping mechanisms distributed in a rectangular shape are installed on the adjusting mechanism, the adjusting mechanism is used to drive the four clamping mechanisms to approach or move away from each other, and the clamping mechanism comprises a fixed column, two frames are fixedly installed on the fixed column, and swing arms are rotatably installed on both sides of the two frames. When the present invention clamps the workpiece by rollers on the four clamping mechanisms, the workpiece can also be pushed and pulled to move it, and when processing the workpiece, the workpiece can be clamped by a clamping plate installed on the clamping mechanism to prevent the workpiece from moving or loosening during processing.

Description

Technical Field

[0001] The invention relates to the technical field of chucks for laser cutting machines, and in particular to a fast-clamping and normally ventilated double-sided chuck for laser tube cutting machines. Background Art

[0002] In the prior art of laser cutting machines, generally, a clamping claw is set on the chuck body, and the clamping claw is driven by the clamping motor on the chuck body to clamp the pipe. In the process of cutting the pipe, the pipe to be cut is clamped by the clamping claw, and then the chuck body drives the pipe to be cut to rotate, and then the pipe to be cut is cut by laser. For example, patent number CN202323033572.3 discloses a double-linkage laser cutting machine square hole front chuck, in which a clamping claw with a guide roller is used to clamp the workpiece.

[0003] However, in the above patent and similar structures, the contact area between the workpiece and the guide roller is small due to the contact between the jaws with guide rollers and the workpiece. Under the weight of the workpiece itself and the heat expansion caused by laser cutting, it is easy to cause deformation at the connection between the workpiece and the guide roller. In addition, since the guide roller and the workpiece are connected in a rolling manner, another fixed chuck is required to fix the workpiece during the processing. For this reason, a laser tube cutting machine quick clamping and normally ventilated double-sided chuck is proposed. Summary of the invention

[0004] In order to solve the shortcomings in the prior art, the present invention provides a double-sided chuck for fast clamping and normally ventilated laser tube cutting machine.

[0005] In order to achieve the above-mentioned objectives, the present invention adopts the following technical scheme: a laser tube cutting machine quickly clamps a normally ventilated double-sided chuck, comprising a machine base, a side box is fixedly installed on one side of the machine base, an adjusting mechanism is rotatably installed on the side of the machine base away from the side box, a rotating mechanism for driving the adjusting mechanism to rotate is installed on the side box, four clamping mechanisms distributed in a rectangular shape are installed on the adjusting mechanism, and the adjusting mechanism is used to drive the four clamping mechanisms to approach or move away from each other, the clamping mechanism comprises a fixed column, two frames are fixedly installed on the fixed column, swing arms are rotatably installed on both sides of the two frames, a roller is rotatably installed between two swing arms located on the same frame, a cross plate is fixedly installed between the two frames, a clamping plate is provided on the side of the cross plate away from the fixed column, and two pushing mechanisms and two driven mechanisms are provided on the side of the cross plate away from the clamping plate, and the spacing between the clamping plate and the cross plate and the spacing between the two rollers can be adjusted by the two pushing mechanisms and the two driven mechanisms.

[0006] Preferably, the adjustment mechanism includes a rotating cylinder that passes through the machine base and is rotatably connected to the machine base, an annular frame is fixedly installed on the end of the rotating cylinder away from the rotating mechanism, and the annular frame is rotatably connected to the machine base, the rotating mechanism includes a ring gear that is fixedly sleeved on the rotating cylinder and a motor that is fixedly connected to the side box, a gear is fixedly installed on the output shaft of the motor, and the gear is meshingly connected to the ring gear.

[0007] Preferably, the adjustment mechanism also includes a rotating cylinder 2 fixed to the side of the annular frame away from the machine base, an annular block is fixedly installed on the side of the rotating cylinder 2 away from the annular frame, a cylinder cover is fixedly installed between the annular frame and the annular block, two gear rings 2 are fixedly sleeved on the rotating cylinder 2, four cylinders 1 distributed in a circular array are hinged on the side of the annular frame close to the annular block, connecting arms are fixedly installed on the ends of the piston rods of the four cylinders 1, two connecting arms are fixedly connected to one of the gear rings 2, and the other two connecting arms are fixedly connected to the other gear ring 2, and four rectangularly distributed ones are opened on the side of the annular block away from the annular frame. A slide groove, limit blocks are fixedly installed on the inner walls of both sides of the slide groove, a displacement block is slidably installed between the two limit blocks, a rack 1 is fixedly installed on one side of the displacement block, a gear 2 is meshedly connected to the rack 1, a rotating shaft is fixedly installed on one side of the gear 2, the rotating shaft passes through the annular block and is rotatably connected to the annular block, a fixed seat is rotatably installed on the end of the rotating shaft away from the gear 2, the fixed seat is fixedly connected to the side of the annular block close to the annular frame, a gear 3 is also fixedly sleeved on the rotating shaft, two of the four gears 3 are meshedly connected to one of the gear rings 2, and the other two gears 3 are meshedly connected to the other gear ring 2.

[0008] Preferably, a rotating column is rotatably installed on the swing arm, one end of the rotating column is fixedly connected to the frame, the pushing mechanism includes a second cylinder fixedly installed on the side of the horizontal plate away from the clamping plate and two fixed rods, the two fixed rods are fixedly installed on the same guide rail at one end away from the horizontal plate, two sliders are slidingly sleeved on the guide rail, the same L-shaped plate is fixedly installed on the two sliders, the piston rod end of the second cylinder is fixedly connected to the L-shaped plate, a connecting plate is fixedly installed on the side of the L-shaped plate away from the horizontal plate, a rectangular plate is fixedly installed on the side of the connecting plate away from the L-shaped plate, and a slope is provided on the rectangular plate.

[0009] Preferably, the pushing mechanism also includes two push-pull rods that pass through the horizontal plate and are slidably connected to the horizontal plate. The ends of the two push-pull rods close to the clamping plate are fixedly connected to the clamping plate, and the ends of the two push-pull rods away from the clamping plate are rotatably installed on the same optical axis. A spring is provided on the sliding sleeve of the push-pull rod, and the two ends of the spring are respectively fixedly connected to the clamping plate and the horizontal plate.

[0010] Preferably, the driven mechanism includes two fixing frames one fixedly mounted on a side of the transverse plate away from the clamping plate, the same sleeve being rotatably mounted on the two fixing frames one, two screws being connected by inner threads of the sleeve, the ends of the two screws away from each other extending outside the sleeve and being fixedly mounted with ball heads, the two ball heads being wrapped with ball covers, the two ball covers being fixedly connected to corresponding swing arms respectively, a gear four being fixedly sleeved on the fixing frame one, a rack two being meshingly connected to the gear four, and the rack two being fixedly connected to the L-shaped plate.

[0011] Preferably, the interior of the sleeve is provided with two sections of threads with opposite rotation directions, and the two screws are respectively adapted to the threads with corresponding rotation directions.

[0012] Preferably, a second fixing frame is provided on the sliding sleeve of the screw rod, one end of the second fixing frame is fixedly connected to the cross plate, two limiting grooves are provided on the screw rod, two limiting strips are fixedly installed on the inner wall of the second fixing frame, and the two limiting strips are respectively slidably installed in the corresponding limiting grooves.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. When the present invention clamps the workpiece by rollers on the four clamping mechanisms, the workpiece can be pushed and pulled to move. When the workpiece is processed, the workpiece can be clamped by a clamping plate installed on the clamping mechanism to prevent the workpiece from moving or loosening during processing.

[0015] 2. In addition, since the workpiece will expand due to heat during the laser cutting process, if rollers are continued to be used to clamp it, the contact area between the rollers and the workpiece is small, which can easily cause deformation at the connection between the workpiece and the rollers. By increasing the contact area between the clamping plate and the workpiece, the workpiece is less likely to deform due to temperature changes during processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a laser tube cutting machine fast clamping normally ventilated double-sided chuck proposed by the present invention;

[0017] Figure 2 A side cross-sectional view of a laser tube cutting machine for quickly clamping a normally ventilated double-sided chuck proposed by the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of a laser tube cutting machine proposed by the present invention for quickly clamping a normally ventilated double-sided chuck, excluding the barrel cover;

[0019] Figure 4 A partial exploded view of a laser tube cutting machine for quickly clamping a normally ventilated double-sided chuck proposed by the present invention;

[0020] Figure 5 A schematic diagram of the structure of a clamping mechanism, a clamping plate, a cross plate and a pushing mechanism in a double-sided chuck for fast clamping and normal ventilation of a laser tube cutting machine proposed by the present invention;

[0021] Figure 6 A schematic diagram of the structure of a middle clamping plate and a cross plate for quickly clamping a normally ventilated double-sided chuck of a laser tube cutting machine proposed by the present invention, as well as two pairs of pushing mechanisms and driven mechanisms;

[0022] Figure 7 for Figure 6 A schematic diagram of the enlarged structure of part A;

[0023] Figure 8 A schematic diagram of the structure of a driven mechanism in a fast clamping normally ventilated double-sided chuck of a laser tube cutting machine proposed by the present invention;

[0024] Fig. 9 A schematic diagram of the partial structure of a driven mechanism in a laser tube cutting machine fast clamping normally ventilated double-sided chuck proposed by the present invention.

[0025] In the figure: 1, base; 2, side box; 3, rotating mechanism; 31, motor; 32, gear 1; 33, gear ring 1; 4, adjustment mechanism; 41, annular frame; 42, cylinder cover; 43, annular block; 44, rotating cylinder 1; 45, rotating cylinder 2; 46, gear ring 2; 47, cylinder 1; 48, connecting arm; 49, limit block; 410, displacement block; 411, rack 1; 412, gear 2; 413, rotating shaft; 414, gear 3; 415, slideway; 416, fixed seat; 5, clamping mechanism; 51, fixed column; 52, frame; 5 3. Swing arm; 54. Rotating column; 55. Roller; 6. Clamping plate; 7. Horizontal plate; 8. Pushing mechanism; 81. Fixed rod; 82. Guide rail; 83. Slider; 84. L-shaped plate; 85. Cylinder 2; 86. Connecting plate; 87. Rectangular plate; 871. Slope; 88. Push-pull rod; 89. Optical axis; 810. Spring; 9. Follower mechanism; 91. Fixed frame 1; 92. Sleeve; 93. Screw; 931. Limiting groove; 94. Ball head; 95. Ball cover; 96. Fixed frame 2; 961. Limiting strip; 97. Rack 2; 98. Gear 4. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Please refer to Figure 1-Figure 9The present invention provides a technical solution: a laser tube cutting machine quickly clamps a normally ventilated double-sided chuck, comprising a machine base 1, a side box 2 is fixedly installed on one side of the machine base 1, an adjusting mechanism 4 is rotatably installed on the side of the machine base 1 away from the side box 2, a rotating mechanism 3 for driving the adjusting mechanism 4 to rotate is installed on the side box 2, four clamping mechanisms 5 distributed in a rectangular shape are installed on the adjusting mechanism 4, the adjusting mechanism 4 is used to drive the four clamping mechanisms 5 to approach or move away from each other, the clamping mechanism 5 comprises a fixed column 51, two frames 52 are fixedly installed on the fixed column 51, swing arms 53 are rotatably installed on both sides of the two frames 52, a roller 55 is rotatably installed between the two swing arms 53 located on the same frame 52, a cross plate 7 is fixedly installed between the two frames 52, a clamping plate 6 is provided on the side of the cross plate 7 away from the fixed column 51, and two pushing mechanisms 8 and two driven mechanisms 9 are provided on the side of the cross plate 7 away from the clamping plate 6, and the distance between the clamping plate 6 and the cross plate 7 and the distance between the two rollers 55 can be adjusted by the two pushing mechanisms 8 and the two driven mechanisms 9.

[0028] The adjusting mechanism 4 includes a rotating cylinder 44 that passes through the machine base 1 and is rotatably connected to the machine base 1. An annular frame 41 is fixedly installed on the end of the rotating cylinder 44 away from the rotating mechanism 3. The annular frame 41 is rotatably connected to the machine base 1. The rotating mechanism 3 includes a ring gear 33 fixedly sleeved on the rotating cylinder 44 and a motor 31 fixedly connected to the side box 2. A gear 32 is fixedly installed on the output shaft of the motor 31, and the gear 32 is meshingly connected to the ring gear 33.

[0029] The adjustment mechanism 4 also includes a rotating cylinder 45 fixed on the side of the annular frame 41 away from the machine base 1, a ring block 43 is fixedly installed on the side of the rotating cylinder 45 away from the annular frame 41, a cylinder cover 42 is fixedly installed between the annular frame 41 and the annular block 43, two gear rings 46 are fixedly sleeved on the rotating cylinder 45, four cylinders 47 distributed in a circular array are hinged on the side of the annular frame 41 close to the annular block 43, and connecting arms 48 are fixedly installed on the ends of the piston rods of the four cylinders 47, two of which are fixedly connected to one of the gear rings 46, and the other two connecting arms 48 are fixedly connected to the other gear ring 46. Four sliding grooves 415 distributed in a rectangular shape are opened on the side of the annular block 43 away from the annular frame 41, and limit blocks 49 are fixedly installed on the inner walls of both sides of the sliding grooves 415. A displacement block 410 is slidably installed between the two limit blocks 49, and the fixed columns 51 on the four clamping mechanisms 5 are fixedly connected to the corresponding displacement blocks 410 respectively. A rack 1 411 is fixedly installed on one side of the displacement block 410, and a gear 2 412 is meshedly connected to the rack 1 411. A rotating shaft 413 is fixedly installed on one side of the gear 2 412. The rotating shaft 413 penetrates the annular block 43 and is rotatably connected to the annular block 43. A fixed seat 416 is rotatably installed on the end of the rotating shaft 413 away from the gear 2 412, and the fixed seat 416 is fixedly connected to a side of the annular block 43 close to the annular frame 41. A gear 3 414 is also fixedly sleeved on the rotating shaft 413. Two of the four gears 3 414 are meshedly connected to one of the gear rings 46, and the other two gears 3 414 are meshedly connected to the other gear ring 2 46.

[0030] Furthermore, by starting the motor 31, the gear 32 is driven to rotate, the gear 32 in turn drives the ring gear 33 to rotate, the ring gear 33 in turn drives the rotating cylinder 44 to rotate, and the rotation of the rotating cylinder 44 can drive the entire adjusting mechanism 4 and the four clamping mechanisms 5 and the components installed on the clamping mechanisms 5 to rotate. Therefore, when the four clamping mechanisms 5 clamp the workpiece, the starting motor 31 can drive the workpiece to rotate.

[0031] A rotating column 54 is rotatably installed on the swing arm 53, and one end of the rotating column 54 is fixedly connected to the frame 52. The pushing mechanism 8 includes a cylinder 2 85 fixedly installed on the side of the horizontal plate 7 away from the clamping plate 6 and two fixed rods 81. The two fixed rods 81 are fixedly installed with the same guide rail 82 at one end away from the horizontal plate 7. Two sliders 83 are slidably sleeved on the guide rail 82. The same L-shaped plate 84 is fixedly installed on the two sliders 83. The piston rod end of the cylinder 2 85 is fixedly connected to the L-shaped plate 84. A connecting plate 86 is fixedly installed on the side of the L-shaped plate 84 away from the horizontal plate 7. A rectangular plate 87 is fixedly installed on the side of the connecting plate 86 away from the L-shaped plate 84. A slope 871 is provided on the rectangular plate 87.

[0032] The pushing mechanism 8 also includes two push-pull rods 88 that pass through the horizontal plate 7 and are slidably connected to the horizontal plate 7. The ends of the two push-pull rods 88 close to the clamping plate 6 are fixedly connected to the clamping plate 6, and the ends of the two push-pull rods 88 away from the clamping plate 6 are rotatably installed with the same optical axis 89. A spring 810 is provided on the sliding sleeve of the push-pull rod 88, and the two ends of the spring 810 are respectively fixedly connected to the clamping plate 6 and the horizontal plate 7.

[0033] The driven mechanism 9 includes two fixing frames 91 fixedly mounted on the side of the transverse plate 7 away from the clamping plate 6, the same sleeve 92 is rotatably mounted on the two fixing frames 91, two screws 93 are connected to the inner thread of the sleeve 92, the ends of the two screws 93 away from each other extend to the outside of the sleeve 92 and are fixedly mounted with ball heads 94, the two ball heads 94 are wrapped with ball covers 95, and the two ball covers 95 are respectively fixedly connected to the corresponding swing arms 53, a gear 98 is fixedly sleeved on the fixing frame 91, a rack 97 is meshingly connected to the gear 98, and the rack 97 is fixedly connected to the L-shaped plate 84.

[0034] Furthermore, rack 2 97 is away from the teeth at one end of cylinder 2 85, thereby ensuring that rack 2 97 will not drive gear 4 98 to rotate before the clamping plate 6 contacts the workpiece, and at the same time ensuring that the teeth on rack 2 97 will mesh with gear 4 98 only when the position of the clamping plate 6 no longer changes.

[0035] The interior of the sleeve 92 is provided with two sections of threads with opposite rotation directions, and the two screw rods 93 are respectively adapted to the threads with corresponding rotation directions.

[0036] Furthermore, by providing two sections of threads with opposite rotation directions inside the sleeve 92, the two screw rods 93 can move in opposite directions when the sleeve 92 rotates.

[0037] A second fixing frame 96 is slidably sleeved on the screw rod 93, one end of which is fixedly connected to the cross plate 7, two limiting grooves 931 are provided on the screw rod 93, and two limiting strips 961 are fixedly installed on the inner wall of the second fixing frame 96, and the two limiting strips 961 are slidably installed in the corresponding limiting grooves 931 respectively.

[0038] Furthermore, through the cooperation of the two sets of limiting strips 961 and the limiting grooves 931, the screw rod 93 can only move along the axis and will not rotate.

[0039] In this embodiment: when clamping a workpiece, the workpiece is passed through the side box 2 and the adjustment mechanism 4 and is located between the four clamping mechanisms 5, and then the four cylinders 1 47 are controlled to extend, and the four cylinders 1 47 drive the two gear rings 2 46 to rotate through the four connecting arms 48, and the two gear rings 2 46 respectively drive the corresponding gear 3 414 to rotate, and the four gear 3 414 then drive the corresponding gear 2 412 to rotate through the corresponding rotating shaft 413, and the rotation of the four gear 2 412 will drive the four racks 1 411 to move simultaneously and approach each other, and the four racks 1 411 then drive the four clamping mechanisms 5 to approach each other through the corresponding displacement blocks 410 to complete the purpose of clamping the workpiece;

[0040] When the clamping mechanism 5 clamps the workpiece, first the two rollers 55 contact the workpiece, and then the cylinder 2 85 in the two pushing mechanisms 8 on the clamping mechanism 5 is controlled to extend, and the cylinder 2 85 drives the L-shaped plate 84 to move, and the L-shaped plate 84 then drives the connecting plate 86 and the rectangular plate 87 to move and make the rectangular plate 87 close to the optical axis 89, and then during the movement of the rectangular plate 87, the optical axis 89 rolls on the slope 871 and is pushed toward the cross plate 7 by the slope 871, and the optical axis 89 then pushes the clamping plate 6 away from the cross plate 7 and moves toward the workpiece through the two push-pull rods 88. In this process, the clamping plate 6 and the cross plate 7 will stretch the four springs 810 to deform them, and when the cross plate 7 is in close contact with the workpiece, the optical axis 89 also crosses the slope 871 and contacts the side of the rectangular plate 87 close to the connecting plate 86, and then when the cylinder 2 85 continues to lengthen, the position height of the optical axis 89 will not change;

[0041] After the optical axis 89 passes over the slope 871, when the cylinder 2 85 continues to extend, the L-shaped plate 84 will drive the teeth on the rack 2 97 to mesh with the gear 4 98. Then, when the cylinder 2 85 continues to extend and drives the rack 2 97 to move, it will drive the gear 4 98 to rotate. The rotation of the gear 4 98 will drive the sleeve 92 to rotate. The rotation of the sleeve 92 will drive the two screws 93 to move away from each other. The two screws 93 will then drive the two ball heads 94 to drive the two ball covers 95 to move away from each other. During the process of the two ball covers 95 moving away from each other, the two swing arms 53 will be driven to rotate with the corresponding rotating column 54 as the center of the circle, so that the two rollers 55 move away from each other and do not contact the workpiece. At this time, the four clamping mechanisms 5 clamp the workpiece through the four clamping plates 6 installed thereon, thereby preventing the workpiece from moving or loosening.

[0042] When it is necessary to move the workpiece, it is only necessary to control the cylinders 2 85 on the four clamping mechanisms 5 to shorten. Then, under the elastic force of the stretched spring 810, the clamping plate 6 on the clamping mechanism 5 will move toward the cross plate 7 and away from the workpiece. At the same time, the driven mechanism 9 will drive the two swing arms 53 to reset, so that the two rollers 55 on the clamping mechanism 5 will return to their original positions and be in close contact with the workpiece. At this time, there is no obstruction from the clamping plate 6, and since the rollers 55 and the workpiece are in rolling connection, the workpiece can be pushed or pulled to move between the four clamping mechanisms 5. If you want to release the workpiece, it is only necessary to control the four cylinders 1 47 to shorten, so that the four displacement blocks 410 drive the four clamping mechanisms 5 to move away from the workpiece synchronously.

[0043] A main air pipe for providing compressed air to the four cylinders 47 is installed on the machine base 1, and an air slip ring for distributing compressed air is installed in the side box 2. Bronchial pipes are provided on the four cylinders 47, and the main air pipe is connected to the four bronchial pipes through air slip rings. After the four clamping mechanisms 5 clamp the workpiece, as the rotating mechanism 3 drives the adjusting mechanism 4 and the four clamping mechanisms 5 as well as the workpiece to rotate, the four cylinders 47 will also rotate. Under the connection of the air slip ring, the main air pipe and the bronchial pipes on the four cylinders 47 can be kept in a normally connected state, so that the four cylinders 47 and the main air pipe are kept in a normally connected state, ensuring that the telescopic length of the four cylinders 47 is not affected during the rotation of the workpiece.

[0044] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A laser tube cutting machine fast clamping normally ventilated double-sided chuck, comprising a machine base (1), characterized in that: A side box (2) is fixedly mounted on one side of the machine base (1); an adjustment mechanism (4) is rotatably mounted on a side of the machine base (1) away from the side box (2); a rotation mechanism (3) for driving the adjustment mechanism (4) to rotate is mounted on the side box (2); four clamping mechanisms (5) distributed in a rectangular shape are mounted on the adjustment mechanism (4); the adjustment mechanism (4) is used to drive the four clamping mechanisms (5) to move closer to or farther away from each other; the clamping mechanism (5) comprises a fixed column (51); two frames (52) are fixedly mounted on the fixed column (51); two ends of the two frames (52) are A swing arm (53) is rotatably mounted on each side, a roller (55) is rotatably mounted between two swing arms (53) located on the same frame (52), a transverse plate (7) is fixedly mounted between the two frames (52), a clamping plate (6) is provided on the side of the transverse plate (7) away from the fixed column (51), and two pushing mechanisms (8) and two driven mechanisms (9) are provided on the side of the transverse plate (7) away from the clamping plate (6), and the spacing between the clamping plate (6) and the transverse plate (7) and the spacing between the two rollers (55) can be adjusted by the two pushing mechanisms (8) and the two driven mechanisms (9); A rotating column (54) is rotatably mounted on the swing arm (53), one end of the rotating column (54) is fixedly connected to the frame (52), the pushing mechanism (8) comprises a second cylinder (85) fixedly mounted on the side of the horizontal plate (7) away from the clamping plate (6) and two fixed rods (81), one end of the two fixed rods (81) away from the horizontal plate (7) is fixedly mounted with a same guide rail (82), two sliders (83) are slidably sleeved on the guide rail (82), the two sliders (83) are fixedly mounted with a same L-shaped plate (84), the piston rod end of the second cylinder (85) is fixedly connected to the L-shaped plate (84), a connecting plate (86) is fixedly mounted on the side of the L-shaped plate (84) away from the horizontal plate (7), a rectangular plate (87) is fixedly mounted on the side of the connecting plate (86) away from the L-shaped plate (84), and a slope (871) is provided on the rectangular plate (87); The pushing mechanism (8) further comprises two push-pull rods (88) penetrating the horizontal plate (7) and being slidably connected to the horizontal plate (7), the ends of the two push-pull rods (88) close to the clamping plate (6) being fixedly connected to the clamping plate (6), the ends of the two push-pull rods (88) away from the clamping plate (6) being rotatably mounted on the same optical axis (89), the sliding sleeve on the push-pull rod (88) being provided with a spring (810), the two ends of the spring (810) being fixedly connected to the clamping plate (6) and the horizontal plate (7) respectively; The driven mechanism (9) comprises two fixing frames (91) fixedly mounted on a side of the transverse plate (7) away from the clamping plate (6); a same sleeve (92) is rotatably mounted on the two fixing frames (91); two screw rods (93) are internally threadedly connected to the sleeve (92); ends of the two screw rods (93) away from each other extend outside the sleeve (92) and are fixedly mounted with ball heads (94); the two ball heads (94) are wrapped with ball covers (95); the two ball covers (95) are respectively fixedly connected to corresponding swing arms (53); a gear (98) is fixedly sleeved on the fixing frame (91); a rack (97) is meshingly connected to the gear (98); the rack (97) is fixedly connected to the L-shaped plate (84).

2. According to claim 1, a laser tube cutting machine fast clamping normally ventilated double-sided chuck is characterized by: The adjusting mechanism (4) comprises a rotating cylinder (44) that passes through the machine base (1) and is rotatably connected to the machine base (1); an annular frame (41) is fixedly mounted on one end of the rotating cylinder (44) away from the rotating mechanism (3); the annular frame (41) is rotatably connected to the machine base (1); the rotating mechanism (3) comprises a gear ring (33) fixedly sleeved on the rotating cylinder (44) and a motor (31) fixedly connected to the side box (2); a gear (32) is fixedly mounted on the output shaft of the motor (31); the gear (32) is meshingly connected to the gear ring (33).

3. According to claim 1, a laser tube cutting machine fast clamping normally ventilated double-sided chuck is characterized by: The regulating mechanism (4) further comprises a rotating cylinder (45) fixed to a side of the annular frame (41) away from the machine base (1); an annular block (43) is fixedly mounted on the side of the rotating cylinder (45) away from the annular frame (41); a cylinder cover (42) is fixedly mounted between the annular frame (41) and the annular block (43); two gear rings (46) are fixedly sleeved on the rotating cylinder (45); four cylinders (47) distributed in a circumferential array are hingedly mounted on a side of the annular frame (41) close to the annular block (43); connecting arms (48) are fixedly mounted on the piston rod ends of the four cylinders (47); two connecting arms (48) are fixedly connected to one of the gear rings (46), and the other two connecting arms (48) are fixedly connected to the other gear ring (46); four slide grooves (415) distributed in a rectangular shape are provided on the side of the annular block (43) away from the annular frame (41); the slide grooves (415) are arranged in a rectangular shape. A limit block (49) is fixedly mounted on the inner walls of both sides, a displacement block (410) is slidably mounted between the two limit blocks (49), a rack 1 (411) is fixedly mounted on one side of the displacement block (410), a gear 2 (412) is meshingly connected to the rack 1 (411), a rotating shaft (413) is fixedly mounted on one side of the gear 2 (412), the rotating shaft (413) passes through the annular block (43) and is rotatably connected to the annular block (43), a fixed seat (416) is rotatably mounted on one end of the rotating shaft (413) away from the gear 2 (412), the fixed seat (416) is fixedly connected to a side of the annular block (43) close to the annular frame (41), and a gear 3 (414) is fixedly sleeved on the rotating shaft (413), two of the four gear 3s (414) are meshingly connected to one of the gear rings 2 (46), and the other two gear 3s (414) are meshingly connected to the other gear rings 2 (46).

4. According to claim 1, a laser tube cutting machine fast clamping normally ventilated double-sided chuck is characterized by: The sleeve (92) is provided with two sections of threads with opposite rotation directions inside, and the two screw rods (93) are respectively adapted to the threads with corresponding rotation directions.

5. According to claim 1, a laser tube cutting machine fast clamping normally ventilated double-sided chuck is characterized by: A second fixing frame (96) is slidably sleeved on the screw rod (93), one end of the second fixing frame (96) is fixedly connected to the horizontal plate (7), two limiting grooves (931) are provided on the screw rod (93), two limiting strips (961) are fixedly mounted on the inner wall of the second fixing frame (96), and the two limiting strips (961) are respectively slidably mounted in the corresponding limiting grooves (931).

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