Multi-split type follow-up material supporting mechanism and method

Abstract

The invention relates to the technical field of laser pipe cutting machine follow-up material supporting, and discloses a multi-split follow-up material supporting mechanism and method, a plurality of follow-up mechanisms are characterized in that the front side face of a mounting base is in sliding fit with a follow-up plate through a follow-up lifting guide rail pair, and a follow-up roller is arranged at the top of the follow-up plate; a centering mechanism is arranged on the front side of the follow-up plate in a sliding manner so as to center the pipe; the front side of the mounting seat is matched with the synchronous belt through a driving synchronous belt wheel and a steering belt wheel support; a clutch air cylinder is transversely arranged on the rear side of the follower plate, a fixing plate is arranged on the side edge of the follower plate, and the output end of the clutch air cylinder extends out and can clamp the vertical part of the synchronous belt together with the fixing plate. The output end of the driving mechanism is matched with driving belt wheels of the follow-up mechanisms through transmission shafts, the transmission shafts drive the vertical parts of the synchronous belts to ascend and descend by driving the synchronous belt wheels, then the synchronous belts drive the follow-up plates to ascend and descend through the clutch air cylinders, and follow-up idler wheels and the centering mechanisms can achieve follow-up. And a group of driving mechanisms can synchronously drive a plurality of groups of follow-up mechanisms to act.

Description

Technical Field

[0001] The present invention relates to the technical field of follow-up material supporting for laser pipe cutting machines, and in particular to a one-drive-multiple follow-up material supporting mechanism and method. Background Art

[0002] Laser pipe cutting machines have the advantages of energy conservation and high cutting accuracy. However, during the laser cutting process, due to the excessive length of the pipe, the pipe will sag downward due to its own weight, thereby affecting the processing accuracy. Therefore, a follow-up material supporting mechanism has emerged on the market to lift the sagging pipe. The follow-up material supporting mechanism can rotate with the pipe and lift the material following the shape of the pipe.

[0003] Due to the long length of the pipe itself, multiple follow-up mechanisms need to be configured on each machine tool, and multiple follow-up mechanisms are evenly distributed along the length direction of the machine tool to follow the pipe. The existing follow-up mechanism drives adopt the method of servo motor + reducer, or the driving method of servo motor + rolling resistance screw. However, no matter which driving method is used, each follow-up mechanism is individually equipped with a motor, a driver, and the corresponding transmission mechanism. This is also the main reason for the high use cost of the follow-up mechanism. For example, the invention patent with the application number CN116329791A discloses a follow-up material supporting pipe centering device for a laser pipe cutting machine, and each group of follow-up mechanisms is individually equipped with a group of follow-up material supporting driving components, with a relatively high use cost. Summary of the Invention

[0004] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a one-drive-multiple follow-up material supporting mechanism and method, which can drive multiple groups of follow-up mechanisms to act through a group of driving mechanisms, and solve the problems of high operation cost and inconvenient popularization of the follow-up mechanism of the laser pipe cutting machine.

[0005] To achieve the above purpose, the present invention is realized through the following technical solutions:

[0006] In the first aspect, a one-drive-multiple follow-up material supporting mechanism includes:

[0007] A number of follow-up mechanisms, including that the front side of the mounting seat is slidably matched with a follow-up plate through a follow-up lifting guide rail pair, and a follow-up roller is provided at the top of the follow-up plate; a centering mechanism is slidably provided on the front side of the follow-up plate to achieve centering of the pipe; the front side of the mounting seat is also supported by a driving synchronous pulley and a steering pulley and is matched with a synchronous belt; a clutch cylinder is transversely provided at the rear side of the follow-up plate, and a fixing plate is provided at the side position. The output end of the clutch cylinder extends out and can clamp the vertical part of the synchronous belt with the fixing plate;

[0008] A driving mechanism, the output end of which is matched with the driving belt pulley of a number of follow-up mechanisms through a transmission shaft. The transmission shaft drives the vertical part of the synchronous belt to rise and fall through the driving synchronous pulley, so as to realize the rise and fall of the synchronous belt driving the follow-up plate through the clutch cylinder, and the follow-up roller and the centering mechanism can realize following.

[0009] As a further implementation method, the driving synchronous pulley and the steering pulley are arranged on one side of the follower lifting guide rail pair, and the driving synchronous pulley and several steering pulleys stretch the synchronous belt so that the synchronous belt has a vertical part and is arranged close to the side of the mounting seat.

[0010] As a further implementation method, the piston rod at the output end of the clutch cylinder is arranged horizontally, and the piston rod is connected to the clamping plate. The length direction of the clamping plate is in the same direction as the vertical part of the synchronous belt. A fixed plate is provided on the rear side of the follower plate outside the vertical part of the synchronous belt, and the inner side of the synchronous belt is used to engage with the outer side of the clamping plate.

[0011] As a further implementation method, the driving mechanism includes a matching servo motor and a reducer, the output end of the reducer is connected to a transmission shaft, the transmission shaft passes through the mounting seat and is connected to the driving synchronous pulley through a clamping sleeve; different transmission shafts are coaxially arranged and connected through a coupling, so that one group of driving mechanisms drags multiple groups of driving synchronous pulleys of the follower mechanisms to move.

[0012] As a further implementation method, the follower lifting guide rail pair is vertically arranged to realize the lifting of the follower plate. The follower lifting guide rail pair is provided with two parallel tracks. A group of first limit blocks are provided between the two follower lifting guide rail pairs near the top and bottom ends. A second limit block is correspondingly provided on the rear side surface of the follower plate. The first limit block is used to limit the up and down movement position of the second limit block.

[0013] As a further implementation method, a group of vertical centering guide rails are provided on the front side of the follower plate, and the centering cylinder mounting plate slides with the follower plate through the vertical centering guide rails. A centering lifting cylinder is also provided on the front side of the follower plate, and the output end of the centering lifting cylinder is connected to the centering cylinder mounting plate to realize its lifting.

[0014] As a further implementation method, the centering mechanism is arranged on the centering cylinder mounting plate, a centering cylinder is provided at the bottom position of the front side of the centering cylinder mounting plate, a group of centering guide rail pairs are horizontally provided at the top position, and a pair of centering clamping assemblies are provided on the horizontal centering guide rail pairs. The bottom of the centering clamping assembly is hinged to the output end of the centering cylinder through a connecting rod, and the lifting of the centering cylinder can realize the reverse operation of the two groups of centering clamping assemblies on the horizontal centering guide rail pairs.

[0015] As a further implementation, the centering clamping assembly includes a clamping support block and a roller, wherein the roller is mounted on opposite sides of the two clamping support blocks, and the clamping position corresponds to the middle position of the follower roller.

[0016] As a further implementation, each set of follower mechanisms is configured with a proximity switch, and the control unit can control the operation of the clutch cylinder according to the processing process, so that when the chuck approaches the corresponding follower mechanism, the output end of the corresponding clutch cylinder retracts, releasing the clamping action on the synchronous belt.

[0017] In a second aspect, a working method of a one-drive-multiple follower stock support mechanism uses the one-drive-multiple follower stock support mechanism described in any one of the above, and includes the following steps:

[0018] Before the pipe blanking, the centering mechanism is in an open state. After the pipe falls onto the follower rollers, the centering mechanism centers the pipe. The clutch cylinder extends to press against the synchronous belt, so that the follower plate can move up and down along with the vertical part of the synchronous belt; the driving mechanism rotates according to the cross-section of the pipe through the system control unit, so that several groups of driving synchronous belt pulleys cooperating with the transmission shaft drive the vertical part of the synchronous belt to move up and down. Furthermore, the synchronous belt drives the follower plate to move up and down through the clutch cylinder, so that all the follower rollers and the centering mechanism can achieve following; when the chuck approaches one of the follower mechanisms, the clutch cylinder on the corresponding follower plate retracts, releasing the following function.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. By setting the synchronous belt, the driving synchronous belt pulley and the steering belt pulley, the follower plate can clamp the vertical part of the synchronous belt through the clutch cylinder, and the transmission shaft drives the vertical part of the synchronous belt to move up and down through the driving synchronous belt pulley. Furthermore, the synchronous belt drives the follower plate to move up and down through the clutch cylinder, so that the follower rollers and the centering mechanism can achieve following, and one driving mechanism can synchronously drive multiple groups of follower mechanisms to operate.

[0021] 2. The centering and clamping assembly of the present invention is slidably arranged on the follower plate. During the process of the follower plate moving up and down along with the vertical part of the synchronous belt, it can simultaneously drive the centering and clamping assembly to perform the centering work on the pipe.

[0022] 3. The setting of the limit block of the present invention can limit the up and down movement position of the follower plate; the setting of the buffer can buffer the descending follower plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The specification drawings forming a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0024] Figure 1 is a schematic structural diagram of the follower mechanism in an embodiment of the present invention;

[0025] Figure 2 is a partial structural diagram of the follower mechanism in an embodiment of the present invention;

[0026] Figure 3 This is a schematic structural view of a one-drive-multiple-follow-up material supporting mechanism in an embodiment of the present invention.

[0027] In the figure: The distances or dimensions between each part are exaggerated for showing the positions of each part, and the schematic view is only for illustration.

[0028] Wherein: 1. Centering and clamping assembly; 2. Mounting seat; 3. Connecting rod; 4. Follow-up lifting guide rail pair; 5. Centering cylinder; 6. Follow-up plate; 7. Centering cylinder mounting plate; 8. Centering lifting cylinder; 9. Y-shaped joint; 10. Centering guide rail pair; 11. First steering pulley; 12. Clutch cylinder; 13. Synchronous belt; 14. Clamping plate; 15. Fixed plate; 16. Driving synchronous pulley; 17. Expansion sleeve; 18. Second steering pulley; 19. First limit block; 20. Second limit block; 21. Follow-up roller; 22. Idler pulley; 23. Reducer mounting seat; 24. Reducer; 25. Servo motor; 26. Synchronous pulley; 27. First transmission shaft I; 28. Coupling; 29. Second transmission shaft; 201. Buffer. Detailed implementation manners

[0029] It should be noted that the following detailed descriptions are all illustrative and are intended to provide further explanations of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those of ordinary skill in the technical field to which the present invention belongs.

[0030] Embodiment 1

[0031] In a typical implementation manner of the present invention, referring to Figure 1 as shown, a one-drive-multiple-follow-up material supporting mechanism includes multiple groups of follow-up mechanisms and a group of driving mechanisms. The output end of the driving mechanism is connected in series with multiple groups of follow-up mechanisms through a transmission shaft, so as to realize that only one group of driving mechanisms drives multiple groups of follow-up mechanisms to work synchronously.

[0032] The structures of multiple groups of follow-up mechanisms are the same. Each group of follow-up mechanisms is configured with liftable follow-up rollers and a centering and clamping assembly to realize the follow-up support and centering functions for the pipe.

[0033] As Figure 1 shown, each group of follow-up mechanisms includes a mounting seat 2. A vertical follow-up lifting guide rail pair 4 is provided on the front side of the mounting seat 2. In this embodiment, two parallel follow-up lifting guide rail pairs 4 are provided on the mounting seat 2. One side of the follow-up plate 6 is slidably matched with the follow-up lifting guide rail pair 4 on the mounting seat through a slider, so as to realize that the follow-up plate 6 can slide up and down on the front side of the mounting seat.

[0034] At the middle position of the top of the follower plate 6, a horizontal follower roller 21 is connected through a bracket structure. The follower roller 21 is used to support the pipe. During the rotation of the pipe, the follower plate moves up and down relative to the mounting seat 2, so as to realize the follower support of the pipe by the follower roller 21.

[0035] As Figure 1 shown, a centering mechanism is slidably arranged on the front side of the follower plate 6, and the centering mechanism is installed on the centering cylinder mounting plate 7.

[0036] Specifically, a set of vertically arranged centering guide rail pairs 10 are provided on the side surface of the follower plate 6 close to the centering cylinder mounting plate 7, and the centering guide rail pairs 10 are arranged in parallel with the follower lifting guide rail pairs 4. The centering cylinder mounting plate 7 is slidably matched with the vertically arranged centering guide rail pairs 10 through a slider structure, so as to realize the lifting movement of the centering cylinder mounting plate 7 relative to the follower plate 6 in the vertical direction.

[0037] A centering lifting cylinder 8 is vertically arranged on the follower plate 6 on one side of the centering cylinder mounting plate 7. The top end of the centering lifting cylinder 8 is the output end, and is connected to the fixed block at the rear side position of the centering cylinder mounting plate 7 through a Y-shaped joint 9. Therefore, the centering lifting cylinder 8 can drive the centering cylinder mounting plate 7 to lift along the centering guide rail pairs 10 on the front side surface of the follower plate 6 through the Y-shaped joint 9 and the fixed block, so as to realize the height adjustment of the centering mechanism.

[0038] As Figure 1 shown, the centering mechanism includes a vertically arranged centering cylinder 5 and a centering clamping assembly 1. The centering cylinder 5 is fixed at the middle position of the bottom of the front side surface of the centering cylinder mounting plate 7. The top output end of the centering cylinder 5 is hinged to the bottom ends of two groups of connecting rods 3 through a connecting block. The top ends of the two groups of connecting rods 3 are hinged to the centering clamping assembly 1. The centering clamping assembly includes a clamping support block and a roller. The top of each group of connecting rods 3 is correspondingly hinged to the bottom position of a group of clamping support blocks, and rollers are installed at the relative side positions of the two groups of clamping support blocks.

[0039] In order to realize the centering and clamping work, a set of horizontal centering guide rail pairs are provided at the top position of the front side surface of the centering cylinder mounting plate 7. The sides of the two groups of clamping support blocks are slidably matched with the horizontal centering guide rail pairs 10 through sliders. As Figure 1 shown, the lifting of the output end of the centering cylinder 5 can drive the centering clamping assembly 1 to reciprocate along the centering guide rail pairs 10 through the connecting rods 3, so as to realize the centering and clamping function of the pipe.

[0040] A pulley assembly is provided on the side surface of the mounting seat close to the follower plate 6, and the pulley assembly is arranged on one side of the follower lifting guide rail pairs 4.

[0041] To Figure 2Taking the perspective as an example, the pulley assembly includes a driving synchronous pulley 16 provided at the lower left corner of the front side of the mounting base 2 and a first steering pulley 11 at the upper left corner. A second steering pulley 18 is provided on one side of the driving synchronous pulley 16, and a third steering pulley is also provided on one side of the first steering pulley 11. An idler pulley 22 is provided at a position slightly above between the first steering pulley 11 and the third steering pulley. The synchronous belt 13 can be pre-tensioned through the idler pulley 22, and the installation position of the idler pulley 22 is adjustable, which is an existing technology as long as the synchronous belt can be pre-tensioned. The synchronous belt wraps around the outside of the driving synchronous pulley 16 and the three groups of steering pulleys, and the synchronous belt 13 also closely adheres to the lower side of the idler pulley 22.

[0042] A part of the synchronous belt 13 between the first steering pulley 11 and the driving synchronous pulley 16 is vertically arranged. Under the action of each pulley, the rotation of the driving synchronous pulley 16 can drive this part of the synchronous belt 13 to move up and down.

[0043] On the vertical side of the rear side of the follower plate 6 outside the synchronous belt 13, a fixing plate 15 is provided. A transverse clutch cylinder 12 is provided at the corresponding position on the rear side of the follower plate 6. The piston rod at the output end of the clutch cylinder 12 faces the fixing plate 15, and the piston rod is connected to the clamping plate 14. The clutch cylinder 12 is correspondingly located in the inner area of the synchronous belt 13, while the fixing plate 15 is located in the outer area of the synchronous belt and is arranged opposite to the clamping plate 14. When the output end of the clutch cylinder 12 extends, the clamping plate 14 and the fixing plate 15 can clamp the synchronous belt 13. Specifically, teeth are provided on the inner side of the synchronous belt, and the clamping surface of the clamping plate 14 is a rack structure for meshing with the vertical part of the synchronous belt 13. The driving synchronous pulley 16 and each steering pulley are all gear structures.

[0044] As Figure 3 shown, only one set of driving mechanisms is provided to achieve one-driving-multiple-following type of follower material support. The driving mechanism includes a servo motor 25. The output end of the servo motor is connected to a speed reducer 24 on the speed reducer mounting base 23. The speed reducer mounting base 23 is located on the bed. The output end of the speed reducer 24 is connected to a synchronous pulley 26 through a synchronous belt. The synchronous pulley is fixed on the circumference of the first transmission shaft 27, so that the synchronous pulley 26 can drive the transmission shaft 27 to rotate. One end of the first transmission shaft 27 is connected to the second transmission shaft 29 through a coupling 28, and the other end can penetrate through the driving synchronous pulley 16 and is connected to the driving synchronous pulley 16 through a shrink disc 17, so as to realize the rotation of the transmission shaft driving the driving synchronous pulley 16 to rotate, and further realize the movement of the pulley assembly.

[0045] It can be understood that the following mechanism of this embodiment is provided with four groups, so it can be considered that two groups of following mechanisms are arranged on the front and rear sides of the driving mechanism, and the following mechanism structures on the front and rear sides of the driving mechanism are symmetrically arranged. The driving mechanism of this embodiment is arranged between the second group of following mechanisms and the third group of following mechanisms, so the front end of the first transmission shaft 27 passes through the driving synchronous pulley 16 on the second group of following mechanisms and cooperates with the driving synchronous pulley 16 on the first group of following mechanisms; similarly, the end and middle position of the second transmission shaft 29 cooperate with the driving synchronous pulley 16 on the third group of following mechanisms and the fourth group of following mechanisms, thereby realizing one driving mechanism to four following mechanisms. In other examples, the length or number of the transmission shaft can be adjusted according to the number of following mechanism groups, so that one to multiple can be achieved.

[0046] When the system control unit controls the output end of the clutch cylinder 12 on the rear side of the follower plate to extend so that the clamping plate 14 and the fixed plate 15 clamp the synchronous belt 13, as the driving mechanism drives the transmission shaft to rotate, the transmission shaft drives the vertical part of the synchronous belt 13 to rise and fall by driving the synchronous belt pulley 16. Since the synchronous belt 13 is clamped, the synchronous belt 13 can drive the follower plate 6 to rise and fall relative to the mounting seat 2 along the follower lifting guide rail pair 4 through the clutch cylinder, thereby realizing the follower lifting function.

[0047] The follower lifting guide pair 4 is provided with two parallel tracks, and a group of first limit blocks 19 are provided on the mounting seats between the top and bottom ends of the two follower lifting guide pairs 4, and a second limit block 20 is correspondingly provided on the rear side of the follower plate. The first limit block 19 is used to limit the up and down movement position of the second limit block 20, thereby realizing the limitation of the up and down movement position of the follower plate 6 by the mounting seat 2.

[0048] Therefore, this embodiment can realize a group of driving forces to drive the follower plates on multiple groups of follower mechanisms to rise and fall through the transmission shaft and the pulley assembly, so that the follower roller 21 always effectively supports the pipe. As the pipe rotates, the centering function can be achieved through the centering lifting cylinder 8, the centering cylinder 5, the centering cylinder mounting plate 7, the centering clamping assembly 1 and other structures on the follower plate 6.

[0049] When the chuck moves to the corresponding follower mechanism position, the system control unit controls the clutch cylinder on the follower mechanism to retract, releases the clamping of the synchronous belt, and under the action of gravity, the follower plate descends to avoid the moving position of the chuck. In order to buffer the descent of the follower plate 6, a buffer 201 is provided on one side of the mounting seat, and the top of the buffer is used to support the protruding part of the edge of the follower plate 6, thereby achieving buffering when the follower plate 6 descends and preventing it from falling directly and causing damage. The buffer can be a support frame with a spring structure, or a buffer cylinder or other buffer structure, which is not specifically limited.

[0050] This embodiment can achieve one-to-many follow-up. Only a single servo motor needs to be installed on a group of machine tools to drive multiple follow-up mechanisms to operate, effectively reducing the operating cost of the follow-up mechanisms, solving the problems of high cost and inconvenience in popularization of the existing follow-up mechanisms of laser pipe cutting machines, and can be widely promoted and applied.

[0051] Embodiment 2

[0052] In a typical implementation manner of the present invention, refer to Figure 1 As shown, a working method of a one-to-many follow-up material supporting mechanism, using a one-to-many follow-up material supporting mechanism described in Embodiment 1, includes the following steps:

[0053] Before the pipe falls on the blanking rack, first, the output end of the centering lifting cylinder 8 is in the extended state, and the output end of the centering cylinder 5 is also in the extended state. The two centering clamping components 1 are opened to the maximum through the centering guide pair 10. After the pipe falls on the follow-up roller 21, the centering cylinder 5 retracts, and the two centering clamping components 1 clamp the workpiece to achieve centering of the pipe.

[0054] After centering, the piston rod at the output end of the clutch cylinder 12 is pushed out, driving the clamping plate 14 and the fixed plate 15 to clamp the synchronous belt 13, making multiple components into one body.

[0055] The servo motor 25 rotates according to the pipe cross-section under the control of the system control unit. The transmission shaft drives the vertical part of the synchronous belt to lift through the driving synchronous pulley 16. Since the vertical part of the synchronous belt 13 is clamped, the lifting of the vertical part of the synchronous belt 13 can drive the follow-up plates 6 on all follow-up mechanisms to lift, enabling the follow-up roller 21 to support the pipe follow-up. And the centering clamping components can always complete the centering function as they lift with the follow-up plate 6. The synchronous belt 13 in this embodiment can drive all the components on the follow-up plate 6 to move up and down according to the pipe cross-section to achieve follow-up.

[0056] When the chuck approaches one of the follow-up mechanisms, the corresponding clutch cylinder 12 receives a signal from the control unit, and the piston rod retracts, causing the clamping plate 14 and the fixed plate 15 to release the clamping of the synchronous belt 13. Since there is no synchronous belt 13 to drive the follow-up plate 6 to lift, due to gravity, the follow-up plate 6 drives all the structures above it to fall, disengaging from the motor synchronous belt 13, achieving the effect of avoiding the movement trajectory of the chuck. The buffer member buffers the descent of the follow-up plate to protect the follow-up plate. And the other follow-up mechanisms still play a follow-up role, realizing single-motor drive of multiple follow-up structures. Each pipe in this embodiment repeats the above actions to achieve single-motor drive of multiple follow-up mechanisms.

[0057] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A one-to-many follow-up support mechanism, characterized in that: include: Several follower mechanisms, including a front side of the mounting seat slidingly matched with a follower plate through a follower lifting guide pair, and a follower roller is provided on the top of the follower plate; a centering mechanism is provided on the front side of the follower plate to achieve centering of the pipe; the front side of the mounting seat is also supported by a driving synchronous pulley and a steering pulley to match the synchronous belt; a clutch cylinder is provided laterally on the rear side of the follower plate, and a fixed plate is provided on the side, and the output end of the clutch cylinder extends to clamp the vertical part of the synchronous belt with the fixed plate; The output end of the driving mechanism cooperates with the driving pulleys of several follower mechanisms through the transmission shaft. The transmission shaft drives the vertical part of the synchronous belt to rise and fall by driving the synchronous pulley, and then the synchronous belt drives the follower plate to rise and fall through the clutch cylinder. The follower roller and the centering mechanism can realize the following.

2. The one-to-many follow-up support mechanism according to claim 1 is characterized in that: The driving synchronous pulley and the steering pulley are arranged on one side of the follower lifting guide rail pair. The driving synchronous pulley and the plurality of steering pulleys stretch the synchronous belt so that the synchronous belt has a vertical part and is arranged close to the side of the mounting seat.

3. The one-to-many follow-up supporting mechanism according to claim 2 is characterized in that: The piston rod at the output end of the clutch cylinder is arranged horizontally, and the piston rod is connected to the clamping plate. The length direction of the clamping plate is in the same direction as the vertical part of the synchronous belt. A fixed plate is provided on the rear side of the follower plate outside the vertical part of the synchronous belt, and the inner side of the synchronous belt is used to engage with the outer side of the clamping plate.

4. The one-to-many follow-up supporting mechanism according to claim 1, characterized in that: The driving mechanism includes a matching servo motor and a reducer, the output end of the reducer is connected to a transmission shaft, the transmission shaft passes through a mounting seat and is connected to a driving synchronous pulley through a clamping sleeve; different transmission shafts are coaxially arranged and connected through a coupling, so that one group of driving mechanisms drags multiple groups of driving synchronous pulleys of follower mechanisms to move.

5. The one-to-many follow-up supporting mechanism according to claim 1, characterized in that: The follower lifting guide rail pair is vertically arranged to realize the lifting of the follower plate. The follower lifting guide rail pair is provided with two parallel tracks. A group of first limit blocks are provided between the two follower lifting guide rail pairs near the top and the bottom. A second limit block is correspondingly provided on the rear side surface of the follower plate. The first limit block is used to limit the up and down movement position of the second limit block.

6. The one-to-many follow-up supporting mechanism according to claim 1, characterized in that: A set of vertical centering guide rails are provided on the front side of the follower plate, and the centering cylinder mounting plate slides with the follower plate through the vertical centering guide rails. A centering lifting cylinder is also provided on the front side of the follower plate, and the output end of the centering lifting cylinder is connected to the centering cylinder mounting plate to realize its lifting.

7. The one-to-many follow-up supporting mechanism according to claim 6, characterized in that: The centering mechanism is arranged on the centering cylinder mounting plate, a centering cylinder is provided at the bottom position of the front side of the centering cylinder mounting plate, a group of centering guide rail pairs are horizontally provided at the top position, a pair of centering clamping assemblies are provided on the horizontal centering guide rail pairs, the bottom of the centering clamping assembly is hinged to the output end of the centering cylinder through a connecting rod, and the lifting of the centering cylinder can realize the reverse operation of the two groups of centering clamping assemblies on the horizontal centering guide rail pairs.

8. The one-to-many follow-up supporting mechanism according to claim 7, characterized in that: The centering clamping assembly comprises a clamping support block and a roller. The roller is installed on opposite sides of the two clamping support blocks, and the clamping position corresponds to the middle position of the follower roller.

9. The one-to-many follow-up supporting mechanism according to claim 1, characterized in that: The control unit can control the action of the clutch cylinder according to the machining process, so that when the chuck approaches the corresponding follower mechanism, the corresponding clutch cylinder output end retracts to release the clamping action on the synchronous belt.

10. A working method of a one-to-many follow-up supporting mechanism, characterized in that: The one-to-many follow-up supporting mechanism as claimed in any one of claims 1 to 9 comprises the following steps: Before the pipe is dropped, the centering mechanism is in an open state. After the pipe falls onto the follower roller, the centering mechanism centers the pipe, and the clutch cylinder extends out to tighten the synchronous belt, so that the follower plate can follow the vertical part of the synchronous belt to move up and down; the driving mechanism controls the rotation through the system control unit according to the cross-section of the pipe, so that several groups of driving synchronous pulleys cooperating with the transmission shaft drive the vertical part of the synchronous belt to move up and down, and then the synchronous belt drives the follower plate to move up and down through the clutch cylinder, so that all the follower rollers and the centering mechanism can follow; when the chuck approaches one of the follower mechanisms, the clutch cylinder on the corresponding follower plate retracts to release the follow-up function.

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