Laser pipe cutting machine for scaffold machining

Abstract

The invention relates to the technical field of laser cutting, in particular to a laser pipe cutting machine for scaffold machining. Comprising a support; the number of the rotating clamps is two, the rotating clamps are both installed on the support, and the driving ends of the rotating clamps are fixedly connected with first gears; the spline shaft is rotationally connected to the support, the spline shaft is in spline connection with a sliding cylinder, and the sliding cylinder is fixedly connected with two second gears; the fixing frame is fixedly connected to the support, the fixing frame is provided with a laser head, and the laser head is located between the two rotating clamps; the conveying device is arranged on the support and used for conveying the pipe to a cutting position; and the driving detection assembly is arranged on the bracket and is used for driving the spline shaft to rotate. The two sides of a pipeline cutting part are clamped and fixed and rotate synchronously, so that the rotating torque of the pipeline cutting part is reduced, the pipeline deformation probability is reduced, and the preparation quality of a scaffold is improved.

Description

Technical Field

[0001] The invention relates to the technical field of laser cutting, and in particular to a laser tube cutting machine for scaffolding processing. Background Art

[0002] Laser tube cutting machine is a kind of equipment specially used for cutting various types of metal pipes. It is widely used in aerospace, automobile manufacturing, mechanical processing, building decoration and other industries. It uses high-energy laser beams to locally heat the material, so that the material quickly melts or vaporizes, thereby achieving cutting. Scaffolding is a temporary structure composed of steel pipes, wooden boards and other components. A large number of steel pipes of the same length are required in the preparation process of scaffolding, so a laser tube cutting machine is needed to cut the long steel pipe into several steel pipes of the same length. When the laser tube cutting machine cuts the steel pipe, the cutting position of the steel pipe gradually melts, so that the two ends of the cutting are gradually separated, and the steel pipe needs to be in a rotating state during this process. However, since the existing laser tube cutting machine only clamps and rotates one side of the cutting position, as the connection of the steel pipe cutting position gradually decreases, the rotational force of the steel pipe is difficult to drive the other side to rotate synchronously, resulting in misalignment and twisting, causing the steel pipe to deform and reduce the preparation quality of the scaffolding. Summary of the invention

[0003] In order to overcome the shortcomings mentioned in the above background technology, the present invention provides a laser tube cutting machine for scaffolding processing.

[0004] The technical solution of the present invention is: a laser tube cutting machine for scaffolding processing, comprising: Bracket; There are two rotating clamps, both mounted on the bracket, and the driving end of the rotating clamp is fixedly connected with the first gear; A spline shaft is rotatably connected to the bracket, the spline shaft is spline-connected to a sliding cylinder, the sliding cylinder is fixedly connected to two second gears, and the two second gears are respectively meshed with adjacent first gears; A fixed frame, fixedly connected to the bracket, the fixed frame is provided with a laser head, and the laser head is located between the two rotating clamps; A conveying device, disposed on the support, for conveying the pipe to the cutting position; A driving detection component is arranged on the bracket and is used to drive the spline shaft to rotate.

[0005] Preferably, the drive detection component comprises: A first motor is fixedly connected to the bracket, and an output shaft of the first motor is fixedly connected to a fixing plate rotatably connected to the spline shaft; A connecting rod is fixedly connected to the fixed plate, the spline shaft is fixedly connected to a connecting cylinder which is slidably connected to the connecting rod, an oil bag is arranged in the connecting cylinder, and the connecting rod is used to squeeze the oil bag; A transmission assembly, disposed on the bracket, for transmitting the rotational force of the first motor; A positioning assembly is disposed on the sliding cylinder and is used to put the second gear and the first gear into a meshing state.

[0006] Preferably, the transmission assembly comprises: A sealing shell is fixedly connected to the bracket, the sealing shell is sealingly rotatably connected to a sealing ring, the two cooperate to form a closed cavity, a connecting pipe is fixedly connected between the connecting tube and the sealing ring, and the closed cavity formed by the sealing shell and the sealing ring is connected to the oil bag through the connecting pipe; The elastic push rod is fixedly connected to the bracket, a flow tube is fixedly connected between the fixed part of the elastic push rod and the sealing shell, and the closed cavity formed by the sealing shell and the sealing ring is communicated with the fixed part of the elastic push rod through the flow tube.

[0007] Preferably, the positioning assembly comprises: A limiting ring, which is rotationally connected to the sliding cylinder; The insert shaft, the bracket is fixedly connected with a support frame slidably connected to the limit ring, the insert shaft is slidably connected to the support frame of the bracket, the insert shaft and the limit ring are through-slidably connected, and a first elastic member is provided between the insert shaft and the support frame of the bracket; A separation component, arranged on the insertion shaft, used to separate the insertion shaft from the limiting ring; A feedback component is arranged on the support frame of the bracket and is used to detect the position of the limit ring.

[0008] Preferably, the separation component comprises: A first push block, fixedly connected to the insertion shaft; A second push block, fixedly connected to the telescopic end of the elastic push rod, the second push block being used to squeeze the first push block; The second elastic member is arranged between the spline shaft and the sliding cylinder.

[0009] Preferably, the feedback component comprises: A sliding rod is slidably connected to the support frame of the bracket, and the limiting ring is in contact with the sliding rod; The pressure sensor is fixedly connected to the support frame of the bracket, and a third elastic member is arranged between the sliding rod and the pressure sensor.

[0010] As a preferred embodiment, it also includes: The swing assembly is arranged on the bracket and is used to drive the cut pipe to swing and discharge. The swing assembly includes: A second motor is fixedly connected to the fixing frame, and an output shaft of the second motor passes through the fixing frame; A rotating frame, rotatably connected to the output shaft of the second motor; There are two sliding sleeves, both of which are slidably connected to the rotating frame, and the two rotating clamps are located between the two sliding sleeves; A pushing assembly, disposed on the fixed frame, and used for driving the sliding sleeve to slide along the rotating frame; The idle component is arranged on the fixed frame and is used to make the second motor rotate in an offset manner with the rotating frame.

[0011] Preferably, the sliding sleeve is composed of a supporting frame and four rollers. The supporting frame is slidably connected to the rotating frame. The four rollers are rotatably connected to the supporting frame in a U-shaped manner to reduce the movement resistance of the pipe.

[0012] Preferably, the pushing assembly comprises: The transposition plates are provided with two, both of which are fixedly connected to the fixing frame, the transposition plates are provided with slide grooves, the support frame is fixedly connected with the clamping blocks, and the clamping blocks slide in the adjacent slide grooves.

[0013] Preferably, the idling assembly comprises: A connecting ring, fixedly connected to the rotating frame; A bracket is slidably connected to the output shaft of the second motor, the bracket is used to limit the connection ring, and a fourth elastic member is arranged between the bracket and the fixing frame.

[0014] The beneficial effects are: 1. The present invention clamps and fixes both sides of the pipe cutting part and rotates synchronously, thereby reducing the rotation torque of the pipe cutting part, reducing the probability of pipe deformation, and improving the preparation quality of the scaffold.

[0015] 2. When the rotating fixture is stuck, the second gear is driven to separate from the adjacent first gear, and the output shaft of the first motor drives the spline shaft to idle, thereby preventing the rotating fixture from getting stuck, resulting in an increase in the load on the output shaft of the first motor, and damage due to increased temperature.

[0016] 3. By driving the conveying pipeline to swing in multiple directions in the adjacent rotating clamps, the contact position between the pipeline and the rotating clamp is continuously switched, so that the stuck position of the pipeline is separated from the rotating clamp, reducing the probability of the pipeline getting stuck.

[0017] 4. When the pipeline is limited by the two rotating clamps and cannot swing completely, the bracket is rotated along the connecting ring to release the rotational force of the output shaft of the second motor, thereby preventing the support frame from being unable to swing, resulting in increased load on the second motor and damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a three-dimensional structural schematic diagram of the sliding cylinder and the second gear of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the first motor and the fixed disk of the present invention; Figure 4 It is a three-dimensional structural schematic diagram of the connecting tube and the oil bag of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the first push block and the second push block of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the sliding rod and the third elastic member of the present invention; Figure 7 It is a three-dimensional structural schematic diagram of the rotating frame and the sliding sleeve of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the support frame and the rotating roller of the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the connecting ring and the bracket of the present invention.

[0019] In the figure, 1-bracket, 2-rotating fixture, 3-first gear, 4-spline shaft, 5-sliding cylinder, 6-second gear, 7-fixed frame, 8-laser head, 9-transport device, 201-first motor, 202-fixed plate, 203-connecting rod, 204-connecting cylinder, 205-oil bag, 301-sealing shell, 302-sealing ring, 303-elastic push rod, 304-circulation pipe, 401-limiting ring, 402-insertion shaft, 40 3-first elastic member, 404-first push block, 405-second push block, 406-second elastic member, 407-sliding rod, 408-pressure sensor, 409-third elastic member, 501-second motor, 502-rotating frame, 503-sliding sleeve, 5031-support frame, 5032-roller, 504-transposition plate, 505-slide groove, 506-block, 601-connecting ring, 602-card frame, 603-fourth elastic member. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings.

[0021] In the operation of existing laser pipe cutting machines, only one side close to the cutting position is clamped and driven to rotate during pipe cutting. As the cutting process progresses, the connection area of ​​the steel pipes on both sides gradually decreases, resulting in the rotational force of this part of the steel pipe being insufficient to drive the other end to rotate synchronously. As a result, the steel pipe is prone to misalignment and twisting, which may eventually cause the steel pipe to deform, affecting its straightness and dimensional accuracy, thereby reducing its quality as a scaffolding component.

[0022] A laser tube cutting machine for scaffolding processing, such as Figure 1 and Figure 2 As shown, it includes: a bracket 1; two rotating clamps 2, both of which are installed on the bracket 1, and the driving end of the rotating clamp 2 is fixedly connected to the first gear 3; a spline shaft 4, rotatably connected to the bracket 1, the spline shaft 4 is spline-connected to a sliding cylinder 5, and the sliding cylinder 5 is fixedly connected to two second gears 6, and the two second gears 6 are respectively engaged with adjacent first gears 3; a fixed frame 7, fixedly connected to the bracket 1, and the fixed frame 7 is provided with a laser head 8, and the laser head 8 is located between the two rotating clamps 2; a conveying device 9, which is arranged on the bracket 1 and is used to convey the pipe to the cutting position; a driving detection component, which is arranged on the bracket 1 and is used to drive the spline shaft 4 to rotate.

[0023] In the above scheme, a control terminal is provided on the bracket 1, and the rotating clamp 2 is a pneumatic clamp with fast response speed, clean and environmentally friendly, and is connected to an external gas injection device, and the external gas injection device is electrically connected to the control terminal. The laser head 8 consists of a power system, a nozzle and a gas supply device (which is the prior art and will not be described in detail here). The power system can drive the laser head 8 to change its position, and then cut pipes with different docking ports to adapt to the preparation of different scaffolds. The conveying device 9 is a pulley conveying device with the advantages of strong adaptability, smooth start-up and easy control. The present invention clamps and fixes both sides of the pipe cutting part, and makes the two sides of the pipe cutting part rotate synchronously, thereby reducing the rotational torque of the pipe cutting part, reducing the probability of pipe deformation, and improving the preparation quality of the scaffolding.

[0024] Specifically, Figure 3 and Figure 4 As shown, the drive detection component includes: a first motor 201, fixedly connected to the bracket 1, the output shaft of the first motor 201 is fixedly connected to a fixed plate 202 rotatably connected to the spline shaft 4; a connecting rod 203, fixedly connected to the fixed plate 202, the spline shaft 4 is fixedly connected to a connecting cylinder 204 slidably connected to the connecting rod 203, an oil bag 205 is arranged in the connecting cylinder 204, and the connecting rod 203 is used to squeeze the oil bag 205; a transmission component, arranged on the bracket 1, for transmitting the rotational force of the first motor 201; a positioning component, arranged on the sliding cylinder 5, for making the second gear 6 and the first gear 3 in a meshing state.

[0025] In the above scheme, the first motor 201 is electrically connected to the control terminal, the connecting rod 203 and the connecting cylinder 204 are both arc-shaped, and the connecting rod 203 and the connecting cylinder 204 have the same bending degree, and the bending centers of the two coincide with the central axis of the fixed disk 202. The connecting rod 203 and the connecting cylinder 204 are both made of high-strength steel, which has good structural strength and is easy to transmit torque. The oil bag 205 is filled with hydraulic oil. The hydraulic oil in the oil bag 205 is squeezed by the connecting rod 203 to detect the relative rotation distance of the connecting rod 203 and the connecting cylinder 204.

[0026] Specifically, Figure 3 and Figure 4 As shown, the transmission assembly includes: a sealing shell 301, which is fixedly connected to the bracket 1, and the sealing shell 301 is sealingly and rotatably connected to the sealing ring 302, and the two cooperate to form a closed cavity, a connecting tube is fixedly connected between the connecting cylinder 204 and the sealing ring 302, and the closed cavity formed by the sealing shell 301 and the sealing ring 302 is connected to the oil bag 205 through the connecting tube; an elastic push rod 303, which is fixedly connected to the bracket 1, and a flow tube 304 is fixedly connected between the fixed part of the elastic push rod 303 and the sealing shell 301, and the closed cavity formed by the sealing shell 301 and the sealing ring 302 is connected to the fixed part of the elastic push rod 303 through the flow tube 304.

[0027] In the above scheme, the central axis of the sealing shell 301 and the sealing ring 302 is the same as the central axis of the fixed disk 202. The closed cavity formed by the sealing shell 301 and the sealing ring 302, the connecting tube, the flow tube 304 and the fixed part of the elastic push rod 303 are all filled with hydraulic oil, which converts the relative rotation distance between the connecting rod 203 and the connecting tube 204 into the protruding distance of the telescopic end of the elastic push rod 303.

[0028] Specifically, Figure 5 and Figure 6 As shown, the positioning assembly includes: a limit ring 401, which is rotationally connected to the sliding cylinder 5 for limiting positioning; an insert shaft 402, the bracket 1 is fixedly connected to a support frame which is slidably connected to the limit ring 401, the insert shaft 402 is slidably connected to the support frame of the bracket 1, the insert shaft 402 is slidably connected to the limit ring 401, and a first elastic member 403 is arranged between the insert shaft 402 and the support frame of the bracket 1; a separation assembly, which is arranged on the insert shaft 402, and is used to separate the insert shaft 402 from the limit ring 401; a feedback assembly, which is arranged on the support frame of the bracket 1, and is used to detect the position of the limit ring 401.

[0029] In the above scheme, a through hole is provided on the limiting ring 401, and the insertion shaft 402 is made of high-strength low-alloy steel with a certain structural strength. The insertion shaft 402 limits the sliding cylinder 5 through the through hole on the limiting ring 401, and the first elastic member 403 is a spring for driving the insertion shaft 402 to reset.

[0030] Specifically, Figure 5 As shown, the separation assembly includes: a first push block 404, fixedly connected to the plug shaft 402; a second push block 405, fixedly connected to the telescopic end of the elastic push rod 303, the second push block 405 is used to squeeze the first push block 404; a second elastic member 406, arranged between the spline shaft 4 and the sliding cylinder 5.

[0031] In the above scheme, the first push block 404 and the second push block 405 are both right-angled triangle plates, and the inclined surfaces of the two are in contact with each other. The inclined surface of the first push block 404 squeezes the inclined surface of the second push block 405, so that the plug-in shaft 402 slides along the support frame on the bracket 1. The second elastic member 406 is a spring, and is initially in a compressed state, which is used to push the sliding cylinder 5 to slide along the spline shaft 4, so that the second gear 6 is separated from the adjacent first gear 3. When the rotating fixture 2 is stuck, the output shaft of the first motor 201 drives the spline shaft 4 to idle, thereby avoiding the rotating fixture 2 from getting stuck, resulting in an increase in the load on the output shaft of the first motor 201 and damage caused by increased temperature.

[0032] Specifically, Figure 5 and Figure 6 As shown, the feedback component includes: a sliding rod 407, which is slidably connected to the support frame of the bracket 1, and a limiting ring 401 is in contact with the sliding rod 407; a pressure sensor 408, which is fixedly connected to the support frame of the bracket 1, and a third elastic member 409 is arranged between the sliding rod 407 and the pressure sensor 408.

[0033] In the above scheme, the sliding rod 407 is fitted with the limiting ring 401, so that the limiting ring 401 drives the sliding rod 407 to move synchronously, the pressure sensor 408 is electrically connected to the control terminal, and the third elastic member 409 is a spring, which is used to apply force to the pressure sensor 408, so that the pressure sensor 408 feeds back the stuck state of the rotating clamp 2 to the control terminal.

[0034] When preparing the scaffold, the round tube needs to be cut into several sections for welding preparation. When cutting the round tube, the external feeding device places the cut round tube on the conveying device 9, and then the conveying device 9 is opened to convey the round tube to the left, so that the round tube to be cut passes through the two rotating clamps 2 and reaches the required position, and then the conveying device 9 is closed, and the two rotating clamps 2 are opened to clamp and fix the pipe to be cut. After the pipe to be cut is fixed, the first motor 201 is turned on, and the output shaft of the first motor 201 drives the spline shaft 4 to rotate through the fixed disk 202, the connecting rod 203, the connecting cylinder 204 and the oil bag 205, so that the spline shaft 4 The sliding cylinder 5 thereon is driven to rotate synchronously, and the sliding cylinder 5 drives the two second gears 6 to rotate, so that the two second gears 6 respectively drive the adjacent first gears 3 to rotate, and the first gear 3 drives the rotating end of the adjacent rotating fixture 2 to rotate, so that the rotating end of the rotating fixture 2 drives the clamped and fixed pipe to be fixed, and at the same time, the laser head 8 is turned on, and the laser head 8 starts to cut the pipe, and this is carried out until the pipe cutting is completed. During the cutting process, by clamping and fixing both sides of the pipe cutting position, and making the pipes on both sides of the cutting position rotate synchronously, the rotation torque of the pipe cutting position is reduced, the probability of pipe deformation is reduced, and the preparation quality of the scaffolding is improved.

[0035] When the cutting is completed, turn off the laser head 8, turn off the first motor 201, stop the rotation of the pipe, and then turn off the two rotating clamps 2 to release the clamping of the pipe. At this time, the cut pipe is located in the rotating clamp 2 on the left, and then turn on the conveying device 9, so that the conveying device 9 drives the pipe to be cut to continue to move to the left, and pushes the pipe that has been cut in the left rotating clamp 2 to move synchronously to the left until the pipe to be cut moves to the cutting position again. At this time, the cut pipe is separated from the rotating clamp 2 on the left, and then the above steps are repeated again until the pipe to be cut is completely divided into several sections of equidistant pipes, and then the external loading device places the pipe to be cut on the conveying device 9 again, and repeats the above steps.

[0036] After the rotating clamp 2 has been used for a long time, due to the vibration generated during operation and wear and aging, the fixing bolts between the fixed part and the driving end of the rotating clamp 2 become loose, and asymmetric tightening occurs. The driving end of the rotating clamp 2 may be subjected to uneven force during rotation, resulting in additional resistance, and eventually it becomes stuck and cannot rotate. The rotating end of the rotating clamp 2 cannot drive the pipeline to rotate. At this time, the output shaft of the first motor 201 cannot drive the first gear 3 to rotate through the spline shaft 4, the sliding cylinder 5 and the two second gears 6. The output shaft of the first motor 201 drives the fixed disk 202 to rotate, so that the fixed disk 202 drives the connecting rod 203 thereon to rotate synchronously. At this time, the connecting rod 203 squeezes the oil bag 205 inside the connecting cylinder 204. The oil bag 205 is squeezed by the connecting rod 203, so that the hydraulic oil inside the oil bag 205 enters the closed cavity formed by the sealing shell 301 and the sealing ring 302 along the connecting pipe. The sealing shell 301 and the sealing ring 302 cooperate to form a closed cavity. The hydraulic oil in the closed cavity enters the fixed part of the elastic push rod 303 along the circulation pipe 304. The hydraulic oil in the fixed part of the elastic push rod 303 pushes its telescopic end to extend outward, and the telescopic end of the elastic push rod 303 drives the second push block 405 to squeeze the first push block 404, so that the first push block 404 drives the plug shaft 402 to slide along the support frame on the bracket 1, and the first elastic member 403 is compressed at the same time, until the plug shaft 402 is separated from the limit ring 401. At this time, the plug shaft 402 releases the limit on the limit ring 401, and the elastic force accumulated in the second elastic member 406 drives the sliding cylinder 5 to slide along the spline shaft 4, so that the sliding cylinder 5 drives the two second gears 6 to move synchronously, and the second gear 6 is separated from the adjacent first gear 3, so that the output shaft of the first motor 201 drives the spline shaft 4 to idle, to avoid the rotating fixture 2 from getting stuck, resulting in an increase in the load of the first motor 201 and damage caused by increased temperature.

[0037] When the second elastic member 406 drives the sliding cylinder 5 to slide along the spline shaft 4, the sliding cylinder 5 drives the limit ring 401 thereon to slide synchronously. At this time, the limit ring 401 pushes the sliding rod 407 to move synchronously, so that the sliding rod 407 slides along the support frame on the bracket 1. At the same time, the third elastic member 409 is compressed. At this time, the pressure sensor 408 detects the pressure change, so that the control terminal controls the device to shut down and alarm, waiting for the staff to repair and restore the sliding cylinder 5 to its initial state. The sliding cylinder 5 drives the limit ring 401 to reset synchronously, and controls the plug shaft 402 to limit the limit ring 401 again. The second gear 6 is meshed with the corresponding first gear 3, and at the same time, the second elastic member 406 accumulates elastic force, and then the pipeline cutting work continues. When the above problem occurs again, repeat the above steps.

[0038] In a further embodiment, Figure 7-Figure 9As shown, it also includes: a swing component, which is arranged on the bracket 1 and is used to drive the cut pipe to swing and discharge, and the swing component includes: a second motor 501, which is fixedly connected to the fixed frame 7, and the output shaft of the second motor 501 passes through the fixed frame 7; a rotating frame 502, which is rotatably connected to the output shaft of the second motor 501; a sliding sleeve 503, which has two, both of which are slidably connected to the rotating frame 502, and the two rotating clamps 2 are located between the two sliding sleeves 503; a pushing component, which is arranged on the fixed frame 7, and is used to drive the sliding sleeve 503 to slide along the rotating frame 502; an idle component, which is arranged on the fixed frame 7, and is used to make the second motor 501 and the rotating frame 502 rotate in an offset manner; the sliding sleeve 503 is composed of a supporting frame 5031 and four rollers 5032, the supporting frame 5031 is slidably connected to the rotating frame 502, and the four rollers 5032 are rotatably connected to the supporting frame 5031 in a square shape, so as to reduce the movement resistance of the pipe.

[0039] In the above scheme, the second motor 501 is electrically connected to the control terminal, and the two support frames 5031 are respectively located on the feed side and the discharge side of the pipe to be cut, and are used to control the synchronous swinging of the two pipes. The outside of the roller 5032 is set to a smooth plane to reduce the friction between the pipe and the pipe, thereby facilitating the transportation of the pipe.

[0040] Specifically, Figure 7-Figure 9 As shown, the pushing assembly includes: two transposition plates 504 , both fixedly connected to the fixing frame 7 , a slide groove 505 is provided on the transposition plate 504 , and a clamping block 506 is fixedly connected to the supporting frame 5031 , and the clamping block 506 slides in the adjacent slide groove 505 .

[0041] In the above scheme, the transposition plate 504 is an arc-shaped plate, and the center of the transposition plate 504 coincides with the rotation axis of the rotating frame 502. The slide groove 505 is an inclined groove. The initial block 506 is located in the middle of the adjacent slide groove 505, which is used to make the support frame 5031 slide back and forth along the rotating frame 502, and drive the transported pipeline to swing in multiple directions in the adjacent rotating clamp 2, and continuously switch the contact position of the pipeline and the rotating clamp 2, so that the stuck position of the pipeline is separated from the rotating clamp 2, thereby reducing the probability of the pipeline being stuck.

[0042] Specifically, Figure 7-Figure 9 As shown, the idle assembly includes: a connecting ring 601, fixedly connected to the rotating frame 502; a clamping frame 602, slidably connected to the output shaft of the second motor 501, the clamping frame 602 is used to limit the connecting ring 601, and a fourth elastic member 603 is arranged between the clamping frame 602 and the fixed frame 7.

[0043] In the above scheme, the connecting ring 601 is composed of a circular ring and a number of protrusions distributed at equal intervals in the circumferential direction. The bracket 602 is located between the protrusions on the connecting ring 601, and the fourth elastic member 603 is a spring, which is initially in a compressed state, thereby increasing the force between the bracket 602 and the connecting ring 601, so that the output shaft of the second motor 501 can drive the rotating frame 502 to rotate synchronously under low load. When the pipeline is completely stuck, the bracket 602 is rotated along the connecting ring 601 in an offset manner to release part of the rotational force of the output shaft of the second motor 501, thereby preventing the support frame 5031 from being unable to swing, resulting in increased load and damage to the second motor 501.

[0044] When cutting a round tube, thermal deformation during the laser cutting process and defects on the outside of the tube itself (partial depressions and protrusions on the outer wall of the tube) cause the tube to be stuck in the rotating fixture 2 during transportation and cannot be transported to a specific position. When the conveying device 9 drives the tube to be transported, when the infrared sensor in the conveying device 9 detects that the tube cannot be transported any further, the second motor 501 is turned on, so that the output shaft of the second motor 501 drives the rotating frame 502 to swing back and forth (swing back and forth 3 to 5 times) through the connecting ring 601 and the bracket 602, and the rotating frame 502 drives the two supporting frames 5031 to reciprocate up and down, so that the supporting frame 5031 drives the adjacent tubes to swing up and down in the rotating fixture 2 through the rollers 5032 thereon, and switches the contact position between the tube and the rotating fixture 2. At the same time, when the two sliding sleeves 503 swing up and down, the supporting frame 5031 drives the clamping block 50 thereon to swing back and forth. 6 synchronous movement, so that the card block 506 slides along the adjacent slide groove 505, so that the card block 506 drives the support frame 5031 to slide back and forth along the rotating frame 502, and the support frame 5031 drives the adjacent pipe to swing back and forth through the roller 5032 thereon, and drives the transported pipe to swing in multiple directions in the adjacent rotating clamp 2, and continuously switches the contact position of the pipe and the rotating clamp 2, so that the stuck position of the pipe is separated from the rotating clamp 2. After the pipe is unstuck, when it is stuck again, repeat the above steps until the conveying device 9 drives the pipe to complete the conveying. If the infrared sensor in the conveying device 9 detects that the pipe is still in a stuck state, the second motor 501 is triggered again to drive the rotating frame 502 to swing back and forth. After three consecutive times, it is still in a stuck state. The infrared sensor sends a signal to the control terminal to stop processing and wait for the staff to process. When the pipe is stuck again, repeat the above steps.

[0045] The pipeline will pass through the two rotating clamps 2 during transportation. When the pipeline is stuck in the two rotating clamps 2, due to the certain distance between the two rotating clamps 2, the two rotating clamps 2 limit the swing amplitude of the pipeline, resulting in a reduction in the swing angle of the pipeline. At this time, the support frame 5031 cannot drive the pipeline to swing up and down completely. During the process of the support frame 5031 driving the pipeline to swing, the pipeline is limited by the two rotating clamps 2 and cannot swing completely. The output shaft of the second motor 501 is still in a rotating state, that is, the output shaft of the second motor 501 cannot drive the rotating frame 502 to rotate. The output shaft of the second motor 501 continues to rotate. The output shaft of the second motor 501 drives the bracket 602 thereon to rotate, so that the bracket 602 rotates along the connecting ring 601, and the fourth elastic member 603 is compressed at the same time. This is done until the output shaft of the second motor 501 completes the reciprocating swing. By making the bracket 602 rotate along the connecting ring 601 in an offset manner, the rotational force of the output shaft of the second motor 501 is released, thereby preventing the support frame 5031 from being unable to swing, resulting in an increase in the load of the second motor 501 and damage.

[0046] The above description is only an example of the present invention and is not intended to limit the present invention. Any equivalent substitutions made within the principles of the present invention should be included in the protection scope of the present invention. The contents not elaborated in detail in the present invention belong to the existing technologies known to those skilled in the art.

Claims

1. A laser tube cutting machine for scaffolding processing, characterized in that: Included are: Bracket (1); The rotating clamps (2) are provided with two pieces, both of which are mounted on the bracket (1); the driving end of the rotating clamps (2) is fixedly connected to the first gear (3); A spline shaft (4) is rotatably connected to the bracket (1); the spline shaft (4) is spline-connected to a sliding cylinder (5); the sliding cylinder (5) is fixedly connected to two second gears (6); the two second gears (6) are respectively meshed with adjacent first gears (3); A fixed frame (7) fixedly connected to the bracket (1), the fixed frame (7) being provided with a laser head (8), the laser head (8) being located between the two rotating clamps (2); A conveying device (9), arranged on the support (1), and used for conveying the pipe to a cutting position; A drive detection component is arranged on the bracket (1) and is used to drive the spline shaft (4) to rotate.

2. A laser tube cutting machine for scaffolding processing according to claim 1, characterized in that: The drive detection component includes: A first motor (201) fixedly connected to the bracket (1), wherein an output shaft of the first motor (201) is fixedly connected to a fixed plate (202) rotatably connected to the spline shaft (4); A connecting rod (203) is fixedly connected to the fixed plate (202); the spline shaft (4) is fixedly connected to a connecting cylinder (204) slidably connected to the connecting rod (203); an oil bag (205) is provided in the connecting cylinder (204); and the connecting rod (203) is used to squeeze the oil bag (205); A transmission assembly, arranged on the bracket (1) and used for transmitting the rotational force of the first motor (201); A locking assembly is arranged on the sliding cylinder (5) and is used to put the second gear (6) and the first gear (3) into a meshing state.

3. A laser tube cutting machine for scaffolding processing according to claim 2, characterized in that: The transmission assembly comprises: A sealing shell (301) is fixedly connected to the bracket (1); the sealing shell (301) is sealingly rotatably connected to a sealing ring (302); the two cooperate to form a closed cavity; a connecting pipe is fixedly connected between the connecting cylinder (204) and the sealing ring (302); the closed cavity formed by the sealing shell (301) and the sealing ring (302) is connected to the oil bag (205) via the connecting pipe; An elastic push rod (303) is fixedly connected to the bracket (1); a flow tube (304) is fixedly connected between a fixed portion of the elastic push rod (303) and the sealing shell (301); and a closed cavity formed by the sealing shell (301) and the sealing ring (302) is connected to the fixed portion of the elastic push rod (303) via the flow tube (304).

4. A laser tube cutting machine for scaffolding processing according to claim 3, characterized in that: The positioning assembly includes: A limiting ring (401) is rotationally connected to the sliding cylinder (5); The insert shaft (402) is fixedly connected to a support frame slidably connected to the limiting ring (401) by the bracket (1); the insert shaft (402) is slidably connected to the support frame of the bracket (1); the insert shaft (402) and the limiting ring (401) are slidably connected in a through-type connection; a first elastic member (403) is provided between the insert shaft (402) and the support frame of the bracket (1); A separation component, arranged on the insertion shaft (402), and used for separating the insertion shaft (402) from the limiting ring (401); A feedback component is arranged on a support frame of the bracket (1) and is used to detect the position of the limit ring (401).

5. The laser tube cutting machine for scaffolding processing according to claim 4 is characterized in that: The separation component comprises: A first pushing block (404) fixedly connected to the insertion shaft (402); A second push block (405) is fixedly connected to the telescopic end of the elastic push rod (303), and the second push block (405) is used to squeeze the first push block (404); The second elastic member (406) is arranged between the spline shaft (4) and the sliding cylinder (5).

6. The laser tube cutting machine for scaffolding processing according to claim 4, characterized in that: The feedback component includes: A sliding rod (407) is slidably connected to a support frame of the bracket (1), and the limiting ring (401) is in close contact with the sliding rod (407); The pressure sensor (408) is fixedly connected to the support frame of the bracket (1), and a third elastic member (409) is provided between the sliding rod (407) and the pressure sensor (408).

7. A laser tube cutting machine for scaffolding processing according to claim 6, characterized in that: Also included are: The swing assembly is arranged on the support (1) and is used to drive the cut pipe to swing and discharge. The swing assembly comprises: A second motor (501) is fixedly connected to the fixing frame (7), and an output shaft of the second motor (501) passes through the fixing frame (7); A rotating frame (502) rotatably connected to an output shaft of the second motor (501); There are two sliding sleeves (503), both of which are slidably connected to the rotating frame (502), and the two rotating clamps (2) are located between the two sliding sleeves (503); A pushing component, disposed on the fixed frame (7), and used for driving the sliding sleeve (503) to slide along the rotating frame (502); An idle component is arranged on the fixed frame (7) and is used to enable the second motor (501) and the rotating frame (502) to rotate in an offset manner.

8. The laser tube cutting machine for scaffolding processing according to claim 7, characterized in that: The sliding sleeve (503) is composed of a supporting frame (5031) and four rollers (5032); the supporting frame (5031) is slidably connected to the rotating frame (502); the four rollers (5032) are rotatably connected to the supporting frame (5031) in a square shape, and are used to reduce the movement resistance of the pipe.

9. The laser tube cutting machine for scaffolding processing according to claim 8, characterized in that: The pushing component comprises: The transposition plates (504) have two portions, both of which are fixedly connected to the fixing frame (7); a slide groove (505) is provided on the transposition plate (504); the support frame (5031) is fixedly connected to the clamping block (506); and the clamping block (506) slides in an adjacent slide groove (505).

10. The laser tube cutting machine for scaffolding processing according to claim 9, characterized in that: The idling assembly comprises: A connecting ring (601) fixedly connected to the rotating frame (502); The clamping frame (602) is slidably connected to the output shaft of the second motor (501), the clamping frame (602) is used to limit the position of the connecting ring (601), and a fourth elastic member (603) is provided between the clamping frame (602) and the fixing frame (7).

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