Pipe auxiliary butt-clamping device and laser pipe cutting machine

Abstract

The utility model provides a pipe auxiliary butt-clamping device and a laser pipe cutting machine, the pipe auxiliary butt-clamping device comprises a mounting base, the mounting base is provided with a through guide groove, and the guide groove extends in the first direction; the butt-clamping assembly comprises two butt-clamping pieces, one end of each butt-clamping piece is a shaft end inserted into the corresponding guide groove, and the other end of each butt-clamping piece is located outside the corresponding guide groove; the driving assembly comprises a first driver and a connecting rod assembly, and the first driver is connected with the two pairs of clamping pieces through the connecting rod assembly so as to drive the two pairs of clamping pieces to get close to each other in the first direction to clamp the pipe or get away from each other to loosen the pipe. The pipe auxiliary butt-clamping device is simple in structure and not prone to faults, and the machining precision is ensured.

Description

Technical Field

[0001] The present application belongs to the field of laser processing technology, and more specifically, relates to a pipe auxiliary clamping device and a laser pipe cutting machine. Background Art

[0002] Laser tube cutting machines often encounter smaller tubes. When feeding small tubes between the front and rear chucks, the center is often suspended, causing the tube to collapse. Furthermore, during processing, the tube will swing significantly when rotating, reducing cutting accuracy.

[0003] In the prior art, rollers are symmetrically placed on either side of the pipe, and a rack-and-pinion mechanism driven by a cylinder drives the rollers to move symmetrically to clamp the pipe. This solution is not only complex but also prone to jamming when dust enters, affecting machining accuracy. Utility Model Content

[0004] The embodiment of the present application provides a pipe auxiliary clamping device with a simple structure, not prone to failure, and ensuring processing accuracy.

[0005] The technical solution adopted in the embodiment of the present application is to provide a pipe auxiliary clamping device, comprising:

[0006] A mounting seat, wherein the mounting seat is provided with a through guide groove, and the guide groove extends along a first direction;

[0007] A clamping assembly, the clamping assembly comprising two pairs of clamping members, one end of each clamping member being an axial end inserted into the guide groove, and the other end being located outside the guide groove; and

[0008] The driving assembly includes a first driver and a connecting rod assembly. The first driver connects the two clamping members through the connecting rod assembly to drive the two clamping members to move closer to each other along the first direction to clamp the pipe, or move away from each other to loosen the pipe.

[0009] Furthermore, the first driver includes a driver body and a first output end, the driver body is disposed on the mounting seat, and the first output end is movable along a second direction, the second direction being perpendicular to the first direction;

[0010] The connecting rod assembly includes two connecting rods, each of which corresponds to the clamping parts one by one. One end of the connecting rod is hinged to the corresponding clamping part, and the other end is hinged to the first output end.

[0011] Furthermore, the first driver also includes a connecting head and a pin shaft, the connecting head includes a first fixed part and two hinged parts, one end of the first fixed part is connected to the first output end, and the other end is connected to the two hinged parts, the two hinged parts are arranged opposite to each other, the pin shaft passes through the two hinged parts, and the end of the connecting rod away from the clamping member is hinged to the pin shaft and is located between the two hinged parts.

[0012] Furthermore, the guide groove includes two opposite groove walls, and the clamping member also includes two rollers, one of the rollers is rotatably arranged at one end of the shaft, the roller is located in the guide groove and the circumference of the roller is in rolling contact with the two groove walls.

[0013] Furthermore, the clamping member includes a shaft rod and a roller, one end of the shaft rod is the shaft end, and the roller is rotatably mounted on the end of the shaft rod located outside the guide groove.

[0014] Furthermore, there are two guide grooves, which are spaced apart along the first direction, and the two shaft ends are respectively corresponding to one guide groove.

[0015] Furthermore, the mounting seat is provided with a receiving groove, a raised step is provided in the receiving groove, the guide groove is provided on the end surface of the step, and the first driver and the connecting rod assembly are both located in the receiving groove.

[0016] Furthermore, the pipe auxiliary clamping device also includes a cover plate, which covers the accommodating groove, and is provided with a through hole extending along the first direction for the clamping member to move.

[0017] Furthermore, the pipe auxiliary clamping device also includes a second driving mechanism, and the second driving mechanism is used to drive the mounting seat to move along the third direction.

[0018] An embodiment of the present application further provides a laser tube cutting machine, comprising the tube auxiliary clamping device as described above.

[0019] The beneficial effect of the pipe auxiliary clamping device provided in the embodiment of the present application is that: in the pipe auxiliary clamping device in the embodiment of the present application, a through guide groove is provided on the fixed seat and extends along a first direction perpendicular to the axis of the pipe, and the two opposite groove walls are prepared to provide guidance for the movement of subsequent components. When the first driver drives the two clamping parts to approach each other through the connecting rod assembly, the pipe located between the two clamping parts can be clamped to prevent the pipe from swinging during subsequent processing, thus preparing for subsequent processing. Compared with the solution in the related art that uses a cylinder to drive the gear and rack mechanism to drive the symmetrical movement of the rollers on both sides, the structure of the present pipe auxiliary clamping device is simpler, and the transmission of the guide groove, the shaft end and the connecting rod assembly is used to realize the clamping function, which reduces the complex gear rack and other structures and reduces the complexity of the device. The processing debris generated during the pipe processing, when the processing debris falls into the guide groove, the debris can be discharged from the guide groove along the through structure of the guide groove. The processing debris is not easy to accumulate in the guide groove, thereby effectively avoiding the jamming caused by excessive accumulation of debris, so that the pipe auxiliary clamping device can maintain a good operating state, stably perform auxiliary clamping operations on the pipe, and ensure the processing accuracy of the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0021] Figure 1 A schematic diagram of the three-dimensional structure of the pipe auxiliary clamping device provided in an embodiment of the present application;

[0022] Figure 2 A partial cross-sectional view of the pipe auxiliary clamping device provided in an embodiment of the present application;

[0023] Figure 3 A schematic diagram of the disassembly of the clamping assembly and the driving assembly provided in an embodiment of the present application;

[0024] Figure 4 An exploded schematic diagram of the clamping assembly and the driving assembly provided in an embodiment of the present application;

[0025] Figure 5 A schematic diagram of the three-dimensional structure of the mounting base provided in an embodiment of the present application;

[0026] Figure 6 An exploded schematic diagram of the pipe auxiliary clamping device provided in an embodiment of the present application.

[0027] Among them, the reference numerals in the figures are:

[0028] 1. Mounting seat; 11. Guide groove; 111. Groove wall; 12. Accommodating groove; 13. Step;

[0029] 2. Clamping assembly; 21. Clamping piece; 211. Shaft end; 212. Shaft rod; 213. Roller; 214. Roller;

[0030] 3. Drive assembly; 31. First drive; 311. Drive body; 312. First output terminal; 313. Connector; 3131. First fixing portion; 3132. Hinge portion; 314. Pin; 32. Connecting rod assembly; 321. Connecting rod;

[0031] 4. Cover plate; 41. Through hole;

[0032] 5. Second driving mechanism;

[0033] 6. Guide assembly; 61. Fixed seat; 62. Guide rail; 63. Slider. DETAILED DESCRIPTION

[0034] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0035] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0036] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0038] See also Figure 1 , the pipe auxiliary clamping device provided in the embodiment of the present application is now described.

[0039] Reference Figure 1 and Figure 2 The pipe auxiliary clamping device provided in an embodiment of the present application includes a mounting seat 1, a clamping assembly 2 and a driving assembly 3.

[0040] The mounting base 1 is provided with a through guide groove 11 , and the guide groove 11 extends along a first direction.

[0041] Mounting base 1 is the foundational component of the entire pipe-assisted clamping device, supporting and securing the other components. Mounting base 1 includes a guide slot 11 extending along a first direction. This first direction can be perpendicular to the pipe axis during use. For example, if the pipe axis is along the front-to-back direction, the first direction can be vertical or horizontal.

[0042] The clamping assembly 2 includes two pairs of clamping members 21 , one end of each clamping member 21 is an axial end 211 inserted into the guide groove 11 , and the other end is located outside the guide groove 11 .

[0043] The clamping assembly 2 is used to clamp and release the pipe to stabilize it. The axial end 211 of the clamping member 21 is inserted into the guide groove 11. This axial end 211, similar to a small cylinder, can move flexibly within the guide groove 11. The other end of the clamping member 21 is located outside the guide groove 11, facilitating operations such as connecting with other components and applying clamping force.

[0044] Reference Figure 1 and Figure 2 The driving assembly 3 includes a first driver 31 and a connecting rod assembly 32. The first driver 31 connects the two clamping members 21 through the connecting rod assembly to drive the two clamping members 21 to move closer to each other along the first direction to clamp the pipe, or move away from each other to loosen the pipe.

[0045] The driving assembly 3 provides power to the clamping assembly 2 so that it can complete the action of clamping and loosening the pipe.

[0046] The first actuator 31 acts as a power generator and can be a linear drive device such as an electric push rod or a hydraulic push rod. The connecting rod assembly 32 connects the first actuator 31 and the clamping member 21, acting as a power transmission device. The connecting rod assembly 32 stably transmits the power generated by the first actuator 31 to the clamping member 21, ensuring that the clamping member 21 moves in the desired direction and amplitude.

[0047] The pipe is positioned between the two pairs of clamps 21. During pipe processing, when the pipe needs to be clamped, the first driver 31 is activated, transmitting power to the two pairs of clamps 21 via the connecting rod assembly 32. Under the power, the two pairs of clamps 21 approach each other in a first direction (perpendicular to the pipe axis), and their axial ends 211 move within the guide groove 11 until the clamps 21 firmly clamp the pipe.

[0048] When the pipe is processed and needs to be loosened, the first driver 31 runs in the reverse direction, and drives the two pairs of clamps 21 away from each other in the opposite direction of clamping through the connecting rod assembly 32, so that the clamps 21 return to the initial loosened state, thereby facilitating the removal of the pipe.

[0049] Through the coordinated cooperation of the above components, the pipe auxiliary clamping device can effectively solve the stability problem in the processing of small pipes, improve cutting accuracy, and meet the high quality requirements of laser pipe cutting machines for pipe processing.

[0050] Reference Figure 2 and Figure 3 The first driver 31 includes a driver body 311 and a first output end 312. The driver body 311 is arranged on the mounting seat 1. The first output end 312 can move along a second direction, and the second direction is perpendicular to the first direction.

[0051] The first driver 31, serving as the key power supply unit in the drive assembly 3, comprises a driver body 311 and a first output end 312. The driver body 311 is securely mounted on the mounting base 1 and functions as a power source for the entire driving process. The first output end 312 can move in a second direction, which can be a forward and backward direction.

[0052] Reference Figure 2 and Figure 3 The connecting rod assembly 32 includes two connecting rods 321, and the connecting rods 321 correspond to the clamping members 21 one by one. One end of the connecting rod 321 is hinged to the corresponding clamping member 21, and the other end is hinged to the first output end 312.

[0053] One end of the connecting rod 321 is hingedly connected to the corresponding clamping member 21. This hinged connection allows the clamping member 21 to rotate within a certain range relative to the connecting rod 321 to accommodate angle changes that may occur during the clamping and loosening of the pipe. The other end of the connecting rod 321 is also hingedly connected to the first output end 312. Through this dual-hinged connection, the connecting rod assembly 32 can effectively convert the linear motion of the first output end 312 of the first actuator 31 into relative movement of the clamping member 21 along the first direction, thereby achieving the clamping or loosening operation of the pipe.

[0054] When the pipe needs to be clamped, the first output end 312 moves linearly along the second direction toward the direction away from the guide groove 11, driving the two connecting rods 321, and the connecting rods 321 pull the clamping parts 21. The shaft ends 211 slide close to each other along the first direction in the guide groove 11, so that the clamping parts 21 as a whole are close to the pipe and tightly clamp the pipe to achieve clamping, providing stable and fixed conditions for pipe processing.

[0055] When the pipe needs to be loosened, the first output end 312 moves linearly along the second direction toward the direction close to the guide groove 11, driving the two connecting rods 321 hinged thereto, and the connecting rods 321 push the clamping member 21, and the shaft ends 211 slide away from each other in the guide groove 11 along the first direction (perpendicular to the axis direction of the pipe), so that the clamping member 21 as a whole is away from the pipe, thereby achieving loosening.

[0056] Reference Figure 2 and Figure 3 The first driver 31 also includes a connecting head 313 and a pin shaft 314. The connecting head 313 includes a first fixed part 3131 and two hinged parts 3132. One end of the first fixed part 3131 is connected to the first output end 312, and the other end is connected to the two hinged parts 3132. The two hinged parts 3132 are arranged opposite to each other. The pin shaft 314 is passed through the two hinged parts 3132. The end of the connecting rod 321 away from the clamping member 21 is hinged to the pin shaft 314 and is located between the two hinged parts 3132.

[0057] The first fixing portion 3131 functions as a connector. One end of the fixing portion is tightly connected to the first output end 312, allowing the connector 313 to move synchronously with the movement of the first output end 312. The other end is connected to two opposing hinged portions 3132, forming a single integrated structure. The two hinged portions 3132 are positioned to provide a hinged connection with the connecting rod 321. They are positioned opposite each other, with space between them reserved for the subsequent insertion of the pin 314.

[0058] The pin 314 passes through the two hinged portions 3132 , providing a rotation axis for subsequent hinge connection with the connecting rod 321 .

[0059] The end of the connecting rod 321 away from the clamping member 21 is hinged to the pin 314, and this hinge point is located between the two hinge portions 3132, allowing the connecting rod 321 to rotate relative to the pin 314. When the first output end 312 moves, the connecting rod 321 can rotate in accordance with the direction of movement of the first output end 312 through the transmission of the connector 313 and the pin 314, thereby driving the clamping member 21 to clamp or release the pipe.

[0060] The guide groove 11 includes two opposite groove walls 111. The two groove walls 111 are like two sides of a track, providing a limited channel for the movement of other components, ensuring that they can move accurately in a predetermined direction.

[0061] The clamping member 21 further includes two rollers 214 . One roller 214 is rotatably disposed on one of the shaft ends 211 . The roller 214 is located in the guide groove 11 and the circumference of the roller 214 is in rolling contact with the two groove walls 111 .

[0062] The two rollers 214 are respectively rotatably arranged on the shaft ends 211 of the clamping member 21, and the rollers 214 are located in the guide groove 11, and their circumferences are in rolling contact with the two groove walls 111, which can not only ensure that the clamping member 21 moves accurately along the guide groove 11, but also reduce friction and make the movement smoother.

[0063] In some embodiments, the roller 214 is made of a wear-resistant rubber material wrapped around a metal core. The rubber material provides good friction, ensuring a close fit with the groove wall 111. At the same time, the metal core ensures the strength of the roller 214, allowing it to withstand a certain amount of pressure and friction without being easily damaged. In other embodiments, the roller 214 is a bearing.

[0064] Due to the rolling contact relationship between the roller 214 and the groove wall 111 of the guide groove 11 , when the shaft end 211 moves in the guide groove 11 via the roller 214 , movement friction is effectively reduced.

[0065] Reference Figure 4 The clamping member 21 includes a shaft rod 212 and a roller 213 , one end of the shaft rod 212 is the shaft end 211 , and the roller 213 is rotatably mounted on the end of the shaft rod 212 outside the guide groove 11 .

[0066] One end of the shaft 212 is a shaft end 211, which is inserted into the guide groove 11 of the mounting base 1 and moves in the guide groove 11 through the roller 214 installed thereon. The shaft 212 can be cylindrical.

[0067] The roller 213 is rotatably mounted on the end of the shaft 212 outside the guide groove 11. During the clamping process of the pipe, the roller 213 can rotate accordingly with the rotation of the pipe, which can effectively reduce the friction between the pipe and the clamping member 21, preventing scratches and other damage to the pipe surface caused by excessive friction. It also reduces wear on the clamping member 21 itself and extends its service life.

[0068] Reference Figure 1 and Figure 5There are two guide grooves 11, and the two guide grooves 11 are arranged at intervals along the first direction. The two shaft ends 211 are respectively corresponding to one guide groove 11.

[0069] The two guide grooves 11 are arranged along a first direction, and the guide grooves 11 themselves extend along the first direction. Each guide groove 11 is provided with an axial end 211, meaning that each guide groove 11 corresponds to one clamping member 21. When the two clamping members 21 approach each other, the ends of the two guide grooves 11 that approach each other limit the minimum spacing between the two clamping members 21. Similarly, when the two clamping members 21 move away from each other, the ends of the two guide grooves 11 that move away from each other limit the maximum spacing between the two clamping members 21. In other words, the two guide grooves 11 limit the range within which the clamping members 21 can be clamped or opened.

[0070] Reference Figure 2 and Figure 5 The mounting seat 1 is provided with a receiving groove 12 , a raised step 13 is provided in the receiving groove 12 , the guide groove 11 is provided on the end surface of the step 13 , and the first driver 31 and the connecting rod assembly 32 are both located in the receiving groove 12 .

[0071] The accommodating groove 12 is an area opened up within the mounting base 1. It has a specific shape and size, such as a rectangle, and is capable of accommodating relevant components, such as the first driver 31 and the connecting rod assembly 32. Placing the first driver 31 and the connecting rod assembly 32 within the accommodating groove 12 reduces the overall space occupied by the device, making the structure of the pipe auxiliary clamping device more compact.

[0072] The step 13 is raised, and its end surface becomes the reference surface for providing the guide groove 11 , ensuring that the installation positions of these components on the mounting base 1 are accurate and uniform, which is beneficial to the precise assembly and normal operation of the entire device.

[0073] Reference Figure 1 and Figure 6 The pipe auxiliary clamping device also includes a cover plate 4, which covers the accommodating groove 12. The cover plate 4 is provided with a through hole 41 extending along the first direction for the clamping member 21 to move.

[0074] The cover plate 4 mainly serves to seal the receiving groove 12 on the mounting base 1 to prevent external dust, debris, etc. from entering the receiving groove 12, thereby ensuring that the first driver 31 and connecting rod assembly 32 and other components in the receiving groove 12 can operate in a clean and stable environment, thereby ensuring the reliability and stability of the entire device.

[0075] It can be understood that the size and shape of the cover plate 4 match the size and shape of the opening of the accommodating groove 12 to ensure that it can be tightly sealed on the accommodating groove 12 to isolate the internal components from the external environment.

[0076] A through hole 41 extending along the first direction is provided on the cover plate 4, which matches the movement trajectory of the clamping member 21. The clamping member 21 moves along the first direction during operation. The through hole 41 provided on the cover plate 4 can provide the necessary spatial channel for the movement of the clamping member 21.

[0077] Reference Figure 1 and Figure 6 The pipe auxiliary clamping device also includes a second driving mechanism 5, which is used to drive the mounting seat 1 to move along the third direction.

[0078] In the pipe auxiliary clamping device, the second driving mechanism 5 is responsible for driving the mounting base 1 to move in a third direction (eg, up and down direction).

[0079] During the pipe loading phase, when the pipe auxiliary clamping device is not needed to clamp the pipe, if the mounting base 1 is in a high position, it is likely to obstruct the normal pipe loading path. At this time, the second driving mechanism 5 can drive the mounting base 1 to move downward, greatly facilitating the pipe loading process.

[0080] When the pipe needs to be clamped for subsequent processing operations, the second driving mechanism 5 drives the mounting seat 1 to move along the third direction, so that the pipe is located between the two clamping members 21 .

[0081] When the mounting base 1 rises to a suitable position, the first driver 31 and the clamping assembly 2 can clamp the pipe.

[0082] Reference Figure 1 and Figure 6 The pipe auxiliary clamping device also includes a guide assembly 6, which includes a fixed seat 61, a guide rail 62 and a slider 63. The guide rail 62 extends along the third direction and is arranged on the mounting seat 1. The slider 63 is arranged on the fixed seat 61 and is slidably connected to the guide rail 62.

[0083] The fixing seat 61 is a basic supporting component in the guide assembly 6 , and the fixing seat 61 can be fixed on a stable plane such as a floor.

[0084] The guide rail 62 is a component extending along a third direction (e.g., up and down) on the mounting base 1. The guide rail 62 provides a precise sliding track for the slider 63 slidably connected thereto, allowing the slider 63 to slide smoothly and stably along the up and down direction defined by the guide rail 62, thereby indirectly guiding the movement of the mounting base 1.

[0085] The slider 63 is disposed on the fixing seat 61 and is in sliding connection with the guide rail 62 .

[0086] When the second drive mechanism 5 drives the mounting base 1 to move in the third direction (vertical direction), the guide rail 62 on the mounting base 1 moves along with the mounting base 1. Because the slider 63 is disposed on the fixed base 61 and is slidably connected to the guide rail 62, the guide rail 62 and the slider 63 slide relative to each other during the movement of the mounting base 1. The sliding cooperation between the slide rail and the slider 63 restricts the movement of the mounting base 1 to the third direction determined by the guide rail 62, preventing the mounting base 1 from deflecting, shaking, or other instabilities during movement. This ensures the stability and accuracy of the vertical movement of the mounting base 1, providing reliable protection for the pipe auxiliary clamping device during operations such as pipe loading and clamping.

[0087] An embodiment of the present application further provides a laser pipe cutting machine, comprising the pipe auxiliary clamping device in any of the above embodiments.

[0088] The laser tube cutting machine of the embodiment of the present application includes the tube auxiliary clamping device in any of the above embodiments, and thus has the beneficial effects brought by the tube auxiliary clamping device in any of the above embodiments, which will not be described in detail here.

[0089] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A pipe auxiliary clamping device, characterized in that: include: A mounting seat, wherein the mounting seat is provided with a through guide groove, and the guide groove extends along a first direction; A clamping assembly, the clamping assembly comprising two pairs of clamping members, one end of each clamping member being an axial end inserted into the guide groove, and the other end being located outside the guide groove; and The driving assembly includes a first driver and a connecting rod assembly. The first driver connects the two clamping members through the connecting rod assembly to drive the two clamping members to move closer to each other along the first direction to clamp the pipe, or move away from each other to loosen the pipe.

2. The pipe auxiliary clamping device according to claim 1, characterized in that: The first driver includes a driver body and a first output end, the driver body is arranged on the mounting seat, and the first output end is movable along a second direction, the second direction being perpendicular to the first direction; The connecting rod assembly includes two connecting rods, each of which corresponds to the clamping parts one by one. One end of the connecting rod is hinged to the corresponding clamping part, and the other end is hinged to the first output end.

3. The pipe auxiliary clamping device according to claim 2, characterized in that: The first driver also includes a connecting head and a pin shaft, the connecting head includes a first fixed part and two hinged parts, one end of the first fixed part is connected to the first output end, and the other end is connected to the two hinged parts, the two hinged parts are arranged opposite to each other, the pin shaft passes through the two hinged parts, and the end of the connecting rod away from the clamping member is hinged to the pin shaft and is located between the two hinged parts.

4. The pipe auxiliary clamping device according to claim 1, characterized in that: The guide groove includes two opposite groove walls, and the clamping member also includes two rollers. One of the rollers is rotatably arranged on one end of the shaft. The roller is located in the guide groove and the circumference of the roller is in rolling contact with the two groove walls.

5. The pipe auxiliary clamping device according to claim 1, characterized in that: The clamping member further comprises a shaft rod and a roller, one end of the shaft rod is the shaft end, and the roller is rotatably sleeved on the end of the shaft rod located outside the guide groove.

6. The pipe auxiliary clamping device according to claim 1, characterized in that: There are two guide grooves, which are spaced apart along the first direction, and the two shaft ends are respectively corresponding to one guide groove.

7. The pipe auxiliary clamping device according to claim 1, characterized in that: The mounting seat is provided with a receiving groove, a raised step is provided in the receiving groove, the guide groove is provided on the end surface of the step, and the first driver and the connecting rod assembly are both located in the receiving groove.

8. The pipe auxiliary clamping device according to claim 7, characterized in that: The pipe auxiliary clamping device further includes a cover plate, which covers the accommodating groove. A through hole extending along the first direction is formed on the cover plate to allow the clamping member to move.

9. The pipe auxiliary clamping device according to claim 1, characterized in that: The pipe auxiliary clamping device further includes a second driving mechanism, which is used to drive the mounting seat to move along a third direction.

10. A laser tube cutting machine, characterized in that: It comprises the pipe auxiliary clamping device according to any one of claims 1 to 9.

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