A laser cutting device for bicycle frame pipes

Abstract

The present invention relates to the technical field of laser cutting devices, and in particular to a laser cutting device for bicycle frame pipe fittings, comprising a frame, the frame comprising a horizontally arranged mounting plate, the top surface of the mounting plate being provided with a control console for controlling the rotation of the pipe fitting and a moving component for driving the movement of the pipe fitting, a side surface of the control console being provided with a clamping through hole for passing the pipe fitting, a laser cutting head being provided on the control console, a moving block being slidably mounted on the frame along its own length direction, a pushing component being fixed on the frame for pushing the moving block to move in a direction close to the control console, a horizontally arranged moving rod being rotatably mounted on the side surface of the moving block close to the control console, a moving circular tube being fixed on the end of the moving rod away from the moving block, the moving circular tube being capable of being inserted into the pipe fitting, and the outer circumferential surface of the moving circular tube being capable of being fitted with the inner circumferential surface of the pipe fitting; the present invention can reduce the possibility of scraping slag from the inner wall of the pipe fitting.

Description

Technical Field

[0001] The invention relates to the technical field of laser cutting devices, and in particular to a laser cutting device for a bicycle frame pipe. Background Art

[0002] The bicycle frame structure is usually composed of various tubular components such as the main triangle tube, secondary triangle tube, handlebar tube, front fork tube, etc. These tubes are assembled together through welding, bolting, etc. to form the skeleton structure of the bicycle, which supports and connects various components such as wheels, pedals, and seats.

[0003] During the manufacturing and assembly of bicycle frames, pipes need to be cut to meet different connection requirements. Common cutting methods include mechanical cutting and laser cutting. When using laser to cut pipes, the high-energy laser beam will melt and evaporate the material instantly. During the cutting process, the melted metal will form slag, resulting in scraping of the inner wall of the pipe, which is difficult to clean. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a laser cutting device for a bicycle frame pipe.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is as follows: it includes a frame, the frame includes a horizontally arranged mounting plate, the top surface of the mounting plate is provided with a control console for controlling the rotation of the pipe fitting and a moving component for driving the pipe fitting to move, the side of the control console is provided with a clamping through hole for passing the pipe fitting, the control console is provided with a laser cutting head, a moving block is slidably installed on the frame along its own length direction, a pushing component for pushing the moving block to move toward the direction close to the control console is fixed on the frame, a horizontally arranged moving rod is rotatably installed on the side of the moving block close to the control console, a moving round tube is fixed on the end of the moving rod away from the moving block, the moving round tube can be inserted into the pipe fitting, and the outer circumferential surface of the moving round tube can fit with the inner circumferential surface of the pipe fitting;

[0006] During operation, the moving component drives the pipe fitting to move toward the direction close to the moving circular tube, so that the pipe fitting is sleeved on the outer circumference of the moving circular tube, and then the laser cutting head is controlled to cut the pipe fitting. The control console can drive the pipe fitting to rotate to facilitate the laser cutting head to cut the pipe fitting. During the cutting process, the outer circumference of the moving circular tube fits with the inner circumference of the pipe fitting, so that the molten metal is not easy to hang on the inner circumference of the pipe fitting, thereby reducing the possibility of scraping slag on the inner wall of the pipe fitting.

[0007] Preferably, a fixing plate and two connecting plates are fixed to the top surface of the mounting plate, the pushing assembly comprises a bidirectional screw rod rotatably mounted between the connecting plate and the fixing plate, the bidirectional screw rod is horizontally arranged, pushing blocks are respectively fixed on both sides of the moving block, the pushing blocks are sleeved on the outer periphery of the bidirectional screw rod, the pushing blocks are matched with the bidirectional screw rod threaded transmission, a driving motor is installed on the frame, the output end of the driving motor is fixedly connected to the end of one of the bidirectional screw rods, a synchronous sprocket is sleeved and fixed on the outer periphery of the bidirectional screw rod, a chain is arranged around the outer periphery of the two synchronous sprocket wheels, and the chain is meshed with the synchronous sprocket wheels;

[0008] When working, start the driving motor, which drives two bidirectional screws to rotate synchronously through a chain and two synchronous sprockets. The bidirectional screws drive the push block to move toward the direction close to the console, thereby inserting the movable round tube into the pipe fitting.

[0009] Preferably, the moving assembly includes a positioning block sleeved on the outer periphery of the bidirectional screw, the positioning block is in threaded transmission cooperation with the bidirectional screw, a guide rod parallel to the bidirectional screw is installed between the fixing plate and the mounting plate, the guide rod passes through the positioning block, the positioning block is slidably installed with a clamping plate along its own length direction, the clamping plate can fit with the outer peripheral surface of the pipe fitting, a cylinder 1 is installed on the positioning block, and the piston rod end of the cylinder 1 is fixedly connected to the outer arc surface of the clamping plate away from the pipe fitting;

[0010] During operation, start cylinder 1, which drives the clamping plate to move toward the direction close to the pipe fitting. The two clamping plates clamp and fix the pipe fitting. The bidirectional screw drives the positioning block to move toward the direction close to the moving block, so that the pipe fitting is sleeved on the outer circumference of the moving circular tube, so that the laser cutting head can cut the pipe fitting.

[0011] Preferably, two limit blocks are fixed on the top surface of the mounting plate, the limit blocks are located between the moving block and the positioning block, a slide groove is provided on the side of the limit block close to the moving circular tube, the limit block is slidably installed with a slider along its own length direction through the slide groove, and an arc-shaped scraper is fixed on the side of the slider close to the moving circular tube, and the arc-shaped scraper can fit with the outer circumferential surface of the moving circular tube;

[0012] During operation, after the laser cutting head completes cutting of the pipe fitting, the clamping plate separates from the pipe fitting, and the moving round tube moves in a direction away from the control console. The moving round tube enters between two arc-shaped scrapers, and the pipe fitting is separated from the moving round tube. The arc-shaped scrapers grind the residue on the outer circumference of the moving round tube to facilitate the moving round tube to be inserted into the pipe fitting again.

[0013] Preferably, a reset block is fixed on both sides of the slider, a reset groove is provided on the inner wall of the slide groove, the reset block is slidably matched with the limit block along the length direction of the limit block through the reset groove, a reset spring is fixed on the side of the reset block away from the arc scraper, one end of the reset spring away from the reset block is fixedly connected to the inner wall of the reset groove, an iron block is fixed on the side of the slider away from the arc scraper, an electromagnetic block is fixed on the inner wall of the slide groove away from the arc scraper, and the electromagnetic block can attract the iron block after being energized, a support rod is fixed on the side of the limit block, and a blowing fan is installed on the support rod, and the blowing fan can blow air to the inner wall of the arc scraper;

[0014] During operation, when the electromagnetic block is energized, it attracts the iron block, and the limit block drives the arc scraper to move away from the moving circular tube. The arc scraper moves to a position close to the air blowing fan, and the air blowing fan blows away the residue on the arc scraper, thereby completing the cleaning of the arc scraper.

[0015] Preferably, a control groove is provided on the side of the fixed plate close to the moving block, and a control block is slidably installed on the fixed plate along the length direction of the mounting plate through the control groove, and abutment blocks are respectively fixed on both sides of the control block, and an abutment groove is provided on the inner wall of the control groove, and the abutment block is slidably matched with the fixed plate along the length direction of the mounting plate through the abutment groove, and an abutment spring is fixed on the side of the abutment block away from the moving block, and one end of the abutment spring away from the abutment block is fixedly connected to the inner wall of the abutment groove, a trigger block 1 is fixed on the side of the control block away from the moving block, and a trigger block 2 is fixed on the inner wall of the control groove away from the moving block, the trigger block 2 can be electrically contacted with the trigger block 1, the trigger block 2 is electrically connected to a power supply, and the trigger block 1 is electrically connected to the electromagnetic block;

[0016] During operation, when the moving block drives the moving circular tube to move toward the direction close to the fixed plate, the electromagnetic block is powered off, and the two arc-shaped scrapers abut against each other under the elastic force of the reset spring, so that when the moving circular tube passes through the two arc-shaped scrapers, the arc-shaped scrapers grind the outer circumferential surface of the moving circular tube; when the moving block abuts against the fixed plate, the moving block abuts against the control block and pushes the control block to move toward the direction close to the trigger block two, so that the trigger block one is in electrical contact with the trigger block two, and the electromagnetic block is powered on to work.

[0017] Preferably, a vertical plate is fixed to the top surface of the console, a horizontal plate is sleeved on the outer periphery of the vertical plate, a second cylinder is fixed to the vertical plate, the bottom end of the piston rod of the second cylinder is fixedly connected to the top surface of the horizontal plate, a sliding block is sleeved on the outer periphery of the horizontal plate, the laser cutting head is mounted on the bottom of the sliding block, a third cylinder is fixed to the horizontal plate, the end of the piston rod of the third cylinder is fixedly connected to the sliding block;

[0018] During operation, by controlling cylinder two and cylinder three, the height and horizontal position of the sliding block can be adjusted, and then the position of the laser cutting head can be adjusted, so that the laser cutting head can cut the pipe fittings.

[0019] Preferably, a fixing block is fixed on the top surface of the mounting plate, a fixing ring is sleeved on the outer periphery of the moving rod, the top surface of the fixing block is fixedly connected to the outer periphery of the fixing ring, a spiral groove is provided on the outer periphery of the moving rod, the spiral groove is arranged along the length direction of the moving rod, a limiting cylinder is fixed on the inner periphery of the fixing ring, and the limiting cylinder can move in the spiral groove.

[0020] During operation, the limiting cylinder is inserted in the spiral groove. When the moving rod moves in the fixed ring, the moving rod rotates under the restriction of the limiting cylinder, thereby driving the moving circular tube to rotate, so that the outer circumference of the moving circular tube and the inner circumference of the arc-shaped scraper are fully contacted and polished, thereby improving the cleaning effect of the moving circular tube.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The moving component drives the pipe fitting to move towards the direction close to the moving circular tube, so that the pipe fitting is sleeved on the outer circumference of the moving circular tube, and then the laser cutting head is controlled to cut the pipe fitting. The control console can drive the pipe fitting to rotate so that the laser cutting head can cut the pipe fitting. During the cutting process, the outer circumference of the moving circular tube fits the inner circumference of the pipe fitting, so that the molten metal is not easy to hang on the inner circumference of the pipe fitting, thereby reducing the possibility of scraping slag on the inner wall of the pipe fitting.

[0023] 2. Start cylinder 1, which drives the clamping plate to move toward the direction close to the pipe fitting. The two clamping plates clamp and fix the pipe fitting. The bidirectional screw drives the positioning block to move toward the direction close to the moving block, so that the pipe fitting is sleeved on the outer circumference of the moving round tube, so that the laser cutting head can cut the pipe fitting.

[0024] 3. After the laser cutting head completes cutting of the pipe fitting, the clamping plate separates from the pipe fitting, and the moving round tube moves in the direction away from the console. The moving round tube enters between two arc-shaped scrapers, and the pipe fitting is separated from the moving round tube. The arc-shaped scrapers grind the residue on the outer circumference of the moving round tube to facilitate the moving round tube to be inserted into the pipe fitting again.

[0025] 4. When the electromagnetic block is powered on, it attracts the iron block, and the limit block drives the arc scraper to move away from the moving circular tube. The arc scraper moves to a position close to the air blowing fan, and the air blowing fan blows away the residue on the arc scraper, thereby completing the cleaning of the arc scraper. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a structural schematic diagram of the pushing assembly of the present invention;

[0028] Figure 3 is a cross-sectional view of a limit block of the present invention;

[0029] Figure 4 For the present invention Figure 2 A magnified schematic diagram of the structure in the middle.

[0030] Figure 5 It is a schematic structural diagram of the fixing ring and the moving rod of the present invention.

[0031] In the figure: 1, frame; 11, mounting plate; 12, fixing plate; 13, connecting plate; 2, control console; 21, clamping through hole; 22, vertical plate; 23, horizontal plate; 24, cylinder 2; 25, sliding block; 26, cylinder 3; 27, laser cutting head; 3, moving block; 31, moving rod; 32, moving round tube; 33, pushing block; 34, fixing block; 35, fixing ring; 36, spiral groove; 37, limiting cylinder; 4, pushing assembly; 41, bidirectional screw rod; 42, driving motor; 43, Synchronous sprocket; 44, chain; 5, moving assembly; 51, positioning block; 52, guide rod; 53, clamping plate; 54, cylinder one; 6, limit block; 61, slide groove; 62, slider; 63, arc scraper; 64, reset block; 65, reset groove; 66, reset spring; 67, iron block; 68, electromagnetic block; 7, support rod; 71, blowing fan; 8, control block; 81, control groove; 82, abutment block; 83, abutment groove; 84, abutment spring; 85, trigger block one; 86, trigger block two. DETAILED DESCRIPTION

[0032] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0033] like Figures 1 to 5A bicycle frame tube laser cutting device shown in the figure comprises a frame 1, the frame 1 comprises a horizontally arranged mounting plate 11, the top surface of the mounting plate 11 is provided with a control console 2 for controlling the rotation of the tube and a moving assembly 5 for driving the tube to move, a side surface of the control console 2 is provided with a clamping through hole 21 for passing the tube, a laser cutting head 27 is provided on the control console 2, a moving block 3 is slidably installed on the frame 1 along its length direction, a pushing assembly 4 for pushing the moving block 3 to move toward the control console 2 is fixed on the frame 1, a horizontally arranged moving rod 31 is rotatably installed on the side surface of the moving block 3 close to the control console 2, a moving circular tube 32 is fixed to the end of the moving rod 31 away from the moving block 3, the moving circular tube 32 can be inserted into the tube, and the outer circumference of the moving circular tube 32 can fit with the inner circumference of the tube;

[0034] During operation, the moving component 5 drives the pipe to move toward the direction close to the moving circular tube 32, so that the pipe is sleeved on the outer circumference of the moving circular tube 32, and then the laser cutting head 27 is controlled to cut the pipe. The control console 2 can drive the pipe to rotate to facilitate the laser cutting head 27 to cut the pipe. During the cutting process, the outer circumference of the moving circular tube 32 fits with the inner circumference of the pipe, so that the molten metal is not easy to hang on the inner circumference of the pipe, thereby reducing the possibility of scraping slag on the inner wall of the pipe.

[0035] As a further embodiment of the present invention, a vertical plate 22 is fixed to the top surface of the console 2, and a horizontal plate 23 is horizontally arranged on the outer periphery of the vertical plate 22. A cylinder 24 is fixed to the vertical plate 22, and the bottom end of the piston rod of the cylinder 24 is fixedly connected to the top surface of the horizontal plate 23. A sliding block 25 is provided on the outer periphery of the horizontal plate 23, and a laser cutting head 27 is installed at the bottom of the sliding block 25. A cylinder 3 26 is fixed to the horizontal plate 23, and the end of the piston rod of the cylinder 3 26 is fixedly connected to the sliding block 25.

[0036] During operation, by controlling the second cylinder 24 and the third cylinder 26, the height and the horizontal position of the sliding block 25 can be adjusted, and then the position of the laser cutting head 27 can be adjusted, so that the laser cutting head 27 can cut the pipe.

[0037] As a further embodiment of the present invention, a fixing plate 12 and two connecting plates 13 are fixed to the top surface of the mounting plate 11, and the pushing assembly 4 includes a bidirectional screw 41 rotatably mounted between the connecting plate 13 and the fixing plate 12, the bidirectional screw 41 is horizontally arranged, and pushing blocks 33 are respectively fixed on both sides of the moving block 3, the pushing blocks 33 are sleeved on the outer periphery of the bidirectional screw 41, and the pushing blocks 33 and the bidirectional screw 41 are threadedly matched, and a driving motor 42 is installed on the frame 1, and the output end of the driving motor 42 is fixedly connected to the end of one of the bidirectional screws 41, and the outer periphery of the bidirectional screw 41 is sleeved and fixed with a synchronous sprocket 43, and the outer periphery of the two synchronous sprockets 43 is surrounded by a chain 44, and the chain 44 and the synchronous sprocket 43 are meshed with each other;

[0038] During operation, the driving motor 42 is started, and the driving motor 42 drives the two bidirectional screws 41 to rotate synchronously through the chain 44 and two synchronous sprockets 43. The bidirectional screws 41 drive the pushing block 33 to move toward the direction close to the console 2, thereby inserting the movable round tube 32 into the pipe fitting.

[0039] As a further embodiment of the present invention, the moving assembly 5 includes a positioning block 51 sleeved on the outer periphery of the bidirectional screw 41, the positioning block 51 and the bidirectional screw 41 are threadedly matched, a guide rod 52 parallel to the bidirectional screw 41 is installed between the fixed plate 12 and the mounting plate 11, the guide rod 52 passes through the positioning block 51, and the positioning block 51 is slidably installed with a clamping plate 53 along its own length direction, and the clamping plate 53 can fit with the outer peripheral surface of the pipe fitting, and a cylinder 54 is installed on the positioning block 51, and the piston rod end of the cylinder 54 is fixedly connected to the outer arc surface of the clamping plate 53 away from the pipe fitting;

[0040] During operation, cylinder 1 54 is started, and cylinder 1 54 drives the clamping plate 53 to move toward the direction close to the pipe fitting. The two clamping plates 53 clamp and fix the pipe fitting, and the bidirectional screw rod 41 drives the positioning block 51 to move toward the direction close to the moving block 3, so that the pipe fitting is sleeved on the outer circumference of the moving circular tube 32, so that the laser cutting head 27 can cut the pipe fitting.

[0041] As a further embodiment of the present invention, two limit blocks 6 are fixed on the top surface of the mounting plate 11, and the limit blocks 6 are located between the moving block 3 and the positioning block 51. A slide groove 61 is provided on the side of the limit block 6 close to the moving circular tube 32, and a slider 62 is installed on the limit block 6 to slide along its own length direction through the slide groove 61. An arc-shaped scraper 63 is fixed on the side of the slider 62 close to the moving circular tube 32, and the arc-shaped scraper 63 can fit the outer circumferential surface of the moving circular tube 32;

[0042] During operation, after the laser cutting head 27 completes cutting of the pipe, the clamping plate 53 separates from the pipe, and the movable circular tube 32 moves in a direction away from the control console 2. The movable circular tube 32 enters between two arc-shaped scrapers 63, and the pipe is separated from the movable circular tube 32. The arc-shaped scrapers 63 grind the residue on the outer peripheral surface of the movable circular tube 32 to facilitate the movable circular tube 32 to be inserted into the pipe again.

[0043] As a further embodiment of the present invention, reset blocks 64 are fixed on both sides of the slider 62, a reset groove 65 is provided on the inner wall of the slide groove 61, the reset block 64 slides and cooperates with the limit block 6 along the length direction of the limit block 6 through the reset groove 65, a reset spring 66 is fixed on the side of the reset block 64 away from the arc scraper 63, one end of the reset spring 66 away from the reset block 64 is fixedly connected to the inner wall of the reset groove 65, an iron block 67 is fixed on the side of the slider 62 away from the arc scraper 63, an electromagnetic block 68 is fixed on the inner wall of the slide groove 61 away from the arc scraper 63, and the electromagnetic block 68 can attract the iron block 67 after being energized, a support rod 7 is fixed on the side of the limit block 6, and a blowing fan 71 is installed on the support rod 7, and the blowing fan 71 can blow air to the inner wall of the arc scraper 63;

[0044] During operation, when the electromagnetic block 68 is energized, the electromagnetic block 68 attracts the iron block 67, and the limit block 6 drives the arc scraper 63 to move in the direction away from the movable circular tube 32. The arc scraper 63 moves to a position close to the blowing fan 71, and the blowing fan 71 blows away the residue on the arc scraper 63, thereby completing the cleaning of the arc scraper 63.

[0045] As a further embodiment of the present invention, a control groove 81 is provided on the side of the fixed plate 12 close to the moving block 3, and the fixed plate 12 is slidably installed with the control block 8 along the length direction of the mounting plate 11 through the control groove 81, and abutment blocks 82 are fixed on both sides of the control block 8, and an abutment groove 83 is provided on the inner wall of the control groove 81, and the abutment block 82 is slidably matched with the fixed plate 12 along the length direction of the mounting plate 11 through the abutment groove 83, and an abutment spring 84 is fixed on the side of the abutment block 82 away from the moving block 3, and one end of the abutment spring 84 away from the abutment block 82 is fixedly connected to the inner wall of the abutment groove 83, and a trigger block 1 85 is fixed on the side of the control block 8 away from the moving block 3, and a trigger block 2 86 is fixed on the inner wall of the control groove 81 away from the moving block 3, and the trigger block 2 86 can be electrically contacted with the trigger block 1 85, and the trigger block 2 86 is electrically connected to the power supply, and the trigger block 1 85 is electrically connected to the electromagnetic block 68;

[0046] During operation, when the moving block 3 drives the moving circular tube 32 to move toward the direction close to the fixed plate 12, the electromagnetic block 68 is de-energized, and the two arc-shaped scrapers 63 abut against each other under the elastic force of the return spring 66, so that when the moving circular tube 32 passes through the two arc-shaped scrapers 63, the arc-shaped scrapers 63 grind the outer circumferential surface of the moving circular tube 32. When the moving block 3 abuts against the fixed plate 12, the moving block 3 abuts against the control block 8 and pushes the control block 8 to move toward the direction close to the trigger block 2 86, so that the trigger block 1 85 is in electrical contact with the trigger block 2 86, and the electromagnetic block 68 is energized to work.

[0047] As a further embodiment of the present invention, a fixing block 34 is fixed on the top surface of the mounting plate 11, a fixing ring 35 is sleeved on the outer periphery of the moving rod 31, the top surface of the fixing block 34 is fixedly connected to the outer periphery of the fixing ring 35, a spiral groove 36 is provided on the outer periphery of the moving rod 31, and the spiral groove 36 is arranged along the length direction of the moving rod 31. A limiting cylinder 37 is fixed on the inner periphery of the fixing ring 35, and the limiting cylinder 37 can move in the spiral groove 36.

[0048] During operation, the limiting cylinder 37 is inserted in the spiral groove 36. When the moving rod 31 moves in the fixing ring 35, the moving rod 31 rotates under the restriction of the limiting cylinder 37, thereby driving the moving circular tube 32 to rotate, so that the outer circumference of the moving circular tube 32 and the inner circumference of the arc-shaped scraper 63 are fully contacted and polished, thereby improving the cleaning effect of the moving circular tube 32.

[0049] The working principle of the present invention is as follows: the driving motor 42 is started, the moving block 3 and the pushing block 33 move in a direction approaching each other, so that the moving circular tube 32 is inserted into the pipe fitting, and then the laser cutting head 27 is controlled to cut the pipe fitting; after the cutting is completed, the moving block 3 and the pushing block 33 move in a direction away from each other, the moving circular tube 32 is separated from the pipe fitting and enters between two arc scrapers 63, and the arc scrapers 63 grind the residue on the outer peripheral surface of the moving circular tube 32; the moving block 3 continues to move and abuts against the control block 8 and pushes the control block 8 to move, so that the trigger block 1 85 is in electrical contact with the trigger block 2 86, the electromagnetic block 68 is energized to work, the arc scraper 63 moves in a direction close to the limit block 6, and the blowing fan 71 cleans the residue on the arc scraper 63.

[0050] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may have various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention to be protected, and the scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A laser cutting device for bicycle frame pipes, characterized in that: The machine comprises a frame (1), wherein the frame (1) comprises a horizontally arranged mounting plate (11), the top surface of the mounting plate (11) is provided with a control console (2) for controlling the rotation of a pipe fitting and a moving assembly (5) for driving the pipe fitting to move, the side surface of the control console (2) is provided with a clamping through hole (21) for passing the pipe fitting, the control console (2) is provided with a laser cutting head (27), a moving block (3) is slidably mounted on the frame (1) along its length direction, a pushing assembly (4) is fixed on the frame (1) for pushing the moving block (3) to move in a direction close to the control console (2), a horizontally arranged moving rod (31) is rotatably mounted on the side surface of the moving block (3) close to the control console (2), a moving circular tube (32) is fixed to the end of the moving rod (31) away from the moving block (3), the moving circular tube (32) can be inserted into the pipe fitting, and the outer peripheral surface of the moving circular tube (32) can fit with the inner peripheral surface of the pipe fitting; A fixing plate (12) and two connecting plates (13) are fixed on the top surface of the mounting plate (11); the pushing assembly (4) comprises a bidirectional screw rod (41) rotatably mounted between the connecting plate (13) and the fixing plate (12); the bidirectional screw rod (41) is arranged horizontally; pushing blocks (33) are respectively fixed on both sides of the moving block (3); the pushing blocks (33) are sleeved on the outer periphery of the bidirectional screw rod (41); the pushing blocks (33) and the bidirectional screw rod (41) are threadedly matched; a driving motor (42) is installed on the frame (1); the output end of the driving motor (42) is fixedly connected to the end of one of the bidirectional screw rods (41); a synchronous sprocket (43) is sleeved and fixed on the outer periphery of the bidirectional screw rod (41); a chain (44) is wound around the outer periphery of the two synchronous sprockets (43); the chain (44) and the synchronous sprocket (43) are meshed with each other; The moving assembly (5) comprises a positioning block (51) sleeved on the outer periphery of the bidirectional screw (41), the positioning block (51) and the bidirectional screw (41) are threadedly matched, a guide rod (52) parallel to the bidirectional screw (41) is installed between the fixing plate (12) and the mounting plate (11), the guide rod (52) passes through the positioning block (51), the positioning block (51) is slidably installed with a clamping plate (53) along its own length direction, the clamping plate (53) can fit with the outer peripheral surface of the pipe fitting, the positioning block (51) is installed with a cylinder (54), and the piston rod end of the cylinder (54) is fixedly connected to the outer arc surface of the clamping plate (53) away from the pipe fitting; Two limit blocks (6) are fixed on the top surface of the mounting plate (11), and the limit blocks (6) are located between the moving block (3) and the positioning block (51). A sliding groove (61) is provided on the side of the limit block (6) close to the moving circular tube (32). The limit block (6) is slidably installed with a slider (62) along its own length direction through the sliding groove (61). An arc-shaped scraper (63) is fixed on the side of the slider (62) close to the moving circular tube (32), and the arc-shaped scraper (63) can fit with the outer peripheral surface of the moving circular tube (32); A reset block (64) is fixed on both sides of the slide block (62), a reset groove (65) is provided on the inner wall of the slide groove (61), the reset block (64) is slidably matched with the limit block (6) along the length direction of the limit block (6) through the reset groove (65), a reset spring (66) is fixed on the side of the reset block (64) away from the arc-shaped scraper (63), and one end of the reset spring (66) away from the reset block (64) is fixed to the inner wall of the reset groove (65). The sliding block (62) is fixedly connected to the arc-shaped scraper (63), and an iron block (67) is fixed to the side of the sliding block (62) away from the arc-shaped scraper (63). The inner wall of the sliding groove (61) away from the arc-shaped scraper (63) is fixed with an electromagnetic block (68). The electromagnetic block (68) can attract the iron block (67) after being energized. The side of the limit block (6) is fixed with a support rod (7). The support rod (7) is equipped with a blowing fan (71). The blowing fan (71) can blow air to the inner wall of the arc-shaped scraper (63).

2. A bicycle frame tube laser cutting device according to claim 1, characterized in that: A control groove (81) is provided on the side of the fixed plate (12) close to the movable block (3); the fixed plate (12) is slidably mounted with a control block (8) along the length direction of the mounting plate (11) through the control groove (81); abutment blocks (82) are respectively fixed on both sides of the control block (8); an abutment groove (83) is provided on the inner wall of the control groove (81); the abutment block (82) is slidably matched with the fixed plate (12) along the length direction of the mounting plate (11) through the abutment groove (83); the abutment block (82) is away from the movable block ( A contact spring (84) is fixed on the side of the control block (81), one end of the contact spring (84) away from the contact block (82) is fixedly connected to the inner wall of the contact groove (83), a trigger block 1 (85) is fixed on the side of the control block (81) away from the moving block (3), a trigger block 2 (86) is fixed on the inner wall of the control groove (81) away from the moving block (3), the trigger block 2 (86) can be in electrical contact with the trigger block 1 (85), the trigger block 2 (86) is electrically connected to a power supply, and the trigger block 1 (85) is electrically connected to the electromagnetic block (68).

3. The bicycle frame tube laser cutting device according to claim 1, characterized in that: A vertical plate (22) is fixed on the top surface of the control console (2), and a horizontal plate (23) is horizontally arranged on the outer periphery of the vertical plate (22). Cylinder two (24) is fixed on the vertical plate (22), and the bottom end of the piston rod of cylinder two (24) is fixedly connected to the top surface of the horizontal plate (23). A sliding block (25) is provided on the outer periphery of the horizontal plate (23), and the laser cutting head (27) is installed at the bottom of the sliding block (25). Cylinder three (26) is fixed on the horizontal plate (23), and the end of the piston rod of cylinder three (26) is fixedly connected to the sliding block (25).

4. A bicycle frame tube laser cutting device according to claim 1, characterized in that: A fixing block (34) is fixed on the top surface of the mounting plate (11); a fixing ring (35) is sleeved on the outer periphery of the moving rod (31); the top surface of the fixing block (34) is fixedly connected to the outer periphery of the fixing ring (35); a spiral groove (36) is provided on the outer periphery of the moving rod (31); the spiral groove (36) is arranged along the length direction of the moving rod (31); a limiting cylinder (37) is fixed on the inner periphery of the fixing ring (35); and the limiting cylinder (37) is capable of moving in the spiral groove (36).

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