Laser pipe cutting machine

Abstract

The utility model relates to the technical field of mechanical automation, in particular to a laser pipe cutting machine which comprises a machine frame, a movable support arranged on the machine frame, a laser pipe cutting assembly arranged on the movable support and a feeding chuck arranged at the center of a disc body and on a raw material pipe fitting moving path. The movable support is movably arranged on the rack in the conveying direction of the raw material pipe fitting, and the feeding chuck can clamp the raw material pipe fitting and drive the raw material pipe fitting to rotate; the machining station of the feeding chuck is arranged corresponding to the middle area of the moving path of the moving support on the rack, and the moving support can drive the laser pipe cutting assembly to move to the upstream and the downstream of the feeding direction of the feeding chuck. According to the scheme, the laser pipe cutting assembly can be moved to the upstream position of the feeding chuck to machine the last section of pipe fitting unit firstly, so that a section of tailing does not need to be reserved at the tail end of a raw material pipe fitting for clamping, the utilization rate of the raw material pipe fitting is increased, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical automation, in particular to a laser tube cutting machine. Background Art

[0002] Metal pipes are a commonly used metal profile that are widely used in various fields of production and life. To facilitate material transportation, the raw material pipes for metal pipe processing generally use long pipes of 2-6 meters. Therefore, during application, not only detailed processing but also cutting is required. Existing technology uses laser pipe cutting machines to cut pipes using laser technology. It irradiates the surface of the pipe with a high-energy-density laser beam, causing the pipe to heat up rapidly and melt and vaporize, thereby achieving precise cutting of the pipe. Laser pipe cutting machines have the advantages of high cutting accuracy, smooth incisions, fast cutting speeds, and a small heat-affected zone. They can process pipes of various shapes and sizes.

[0003] With the continuous advancement of technology, new metal tube laser cutting machines can perform four-axis motion. For example, a laser tube cutting machine described in the Chinese utility model patent with the announcement number "CN213969533U" includes a frame, a three-axis movable bracket arranged on the frame, and a laser tube cutting assembly arranged on the three-axis movable bracket, and a tube clamping mechanism. The tube clamping mechanism can fix the tube and drive the tube to rotate. The laser tube cutting machine also includes a clamping mechanism. The clamping mechanism is arranged on the output path of the tube clamping mechanism and can achieve lateral movement. The utility model sets a clamping mechanism on the output path of the tube clamping mechanism, and realizes the transfer of the material by grabbing the material through the clamping mechanism and moving it in the lateral direction, thereby avoiding damage to the material and improving the efficiency of material transmission.

[0004] However, the above solution still has the following problems: when cutting the last section of the raw pipe, a section of tail material must be left on the raw pipe for clamping by the pipe clamping mechanism, which will increase the waste of the raw pipe and reduce the utilization rate of the raw material. Summary of the Invention

[0005] In order to solve the above problems, the purpose of the present invention is to provide a laser tube cutting machine. This solution can use the laser tube cutting assembly to move to the upstream position of the feed chuck to process the last section of the pipe unit first, so that there is no need to leave a section of tail material at the end of the raw pipe for clamping, thereby increasing the utilization rate of the raw pipe and reducing costs.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0007] A laser tube cutting machine comprises a frame, a movable bracket arranged on the frame, a laser tube cutting assembly arranged on the movable bracket, and a feed chuck arranged at the center of the disk body on the moving path of the raw material tube; the movable bracket is arranged on the frame and moves along the conveying direction of the raw material tube, and the feed chuck can clamp the raw material tube and drive the raw material tube to rotate; it is characterized in that: the processing station of the feed chuck is arranged corresponding to the middle area of ​​the moving path of the movable bracket on the frame, and the movable bracket can drive the laser tube cutting assembly to move to the upstream and downstream of the feed direction of the feed chuck.

[0008] The present invention adopts the above-mentioned technical solution, which relates to a laser tube cutting machine. The laser tube cutting assembly in the laser tube cutting machine is mounted on a movable bracket. Based on the movable bracket, the laser tube cutting assembly can move on the frame along the moving path of the raw tube, so as to process different axial positions of the raw tube. During the processing of the raw tube, the feed chuck clamps the raw tube and drives the raw tube to rotate, so that laser processing, such as hole cutting, can be performed at any axial position. After the tube is processed, the laser tube cutting assembly can be used to cut it from the raw tube. This process requires the feed chuck to drive the raw tube to rotate one circle.

[0009] On this basis, the feed chuck processing station in this solution is set in the middle area of ​​the feed chuck's movement path corresponding to the movable bracket on the frame. In this way, the movable bracket can drive the laser tube cutting assembly to move upstream and downstream in the feed direction of the feed chuck. The feed chuck processing station emphasized in the above solution refers to the position of the feed chuck when it clamps the raw material tube and drives it to rotate to cooperate with laser processing.

[0010] Based on this, during the normal pipe processing as described above, the laser tube cutting assembly can process the raw pipe downstream of the feed chuck. The innovation of this case is that it allows the laser tube cutting assembly to move to the upstream position of the feed chuck. On the one hand, the end waste of the raw pipe can be cut off, and on the other hand, the last section of the pipe unit can be laser processed first; the processing position of the above-mentioned end waste and pipe unit is calculated based on the original length of the raw pipe and the length of the pipe unit. At this time, this part of the raw pipe is on the outside of the feed chuck, so it will not be interfered with by the feed chuck during processing. Then, the raw pipe continues to be conveyed forward, and the laser tube cutting assembly cooperates with the feed chuck to process and cut the penultimate section of the pipe unit on the raw pipe, obtaining the last two sections of the processed pipe unit.

[0011] In this way, this solution can use the laser tube cutting assembly to move to the upstream position of the feed chuck to process the last section of the pipe unit first. In this way, there is no need to leave a section of tail material at the end of the raw pipe for clamping, which can achieve shorter tail material, increase the utilization rate of the raw pipe fittings, and reduce costs.

[0012] The upstream and downstream described in the above scheme are based on the feeding direction of the raw material pipe fittings, and the feeding direction of the raw material pipe fittings is the process of being transported from upstream to downstream.

[0013] In a specific embodiment, the movable support includes a support body movably mounted on a frame, and a radial movable pair movably mounted on a transverse movable pair on the support body. The laser tube cutting assembly is mounted on the radial movable pair. The transverse movable pair drives the laser tube cutting assembly to move horizontally perpendicular to the raw tube conveying direction, and the radial movable pair drives the laser tube cutting assembly to move vertically or diagonally perpendicular to the raw tube conveying direction. In this solution, the support body is constructed as a three-axis movable support. First, the support body can move relative to the frame along the raw tube conveying direction; second, the transverse movable pair drives the laser tube cutting assembly to move horizontally perpendicular to the raw tube conveying direction; and third, the radial movable pair drives the laser tube cutting assembly to move vertically or diagonally perpendicular to the raw tube conveying direction.

[0014] In this way, the laser tube cutting assembly can be allowed to perform laser processing on any position of the raw tube.

[0015] In a further embodiment, a rotating pair is provided on the transverse moving pair, the rotating pair comprising a swing arm rotatably mounted on the transverse moving pair; the radial moving pair is provided on the swing arm of the rotating pair, and the laser cutting assembly is capable of rotating with the swing arm relative to the axis and, under the side effect of radial movement, is capable of radially moving relative to the swing arm along the axis. This laser cutting device has a rotating pair provided on the transverse moving pair, and the laser cutting assembly is provided on the swing arm, capable of rotating with the swing arm relative to the axis; thus, the rotation of the rotating pair can be controlled to adjust the cutting angle of the laser cutting device, allowing for beveling of raw pipe fittings.

[0016] In one embodiment, a traction mechanism for pulling the raw pipe is installed on the frame downstream of the feed chuck. The traction mechanism includes a traction manipulator for gripping the raw pipe; the traction manipulator is mounted on the frame and moves along the direction of feed. This solution can refer to the solution in CN213969533U, which uses a gripper mechanism on the rear side of the chuck to grip the raw pipe for traction.

[0017] In another embodiment, a clamping assembly is provided on the frame downstream of the feed chuck, and the clamping assembly includes a group of clamping arms for clamping the raw pipe fittings; the feed chuck is arranged on the frame for movement along the conveying direction of the raw pipe fittings; the feed chuck cooperates with the clamping assembly to drive the feeding of the raw pipe fittings; the movable bracket can at least drive the laser tube cutting assembly to move to the upstream and downstream of the feed chuck in the processing station in the feeding direction.

[0018] In this solution, the clamping assembly is used only to clamp and release the raw material tube, while the feed chuck is designed to be movable. Thus, while the feed chuck is rotating to hold the raw material tube for laser processing, the clamping assembly releases the raw material tube. The clamping assembly only holds the raw material tube when the feed chuck retreats to the loading station, preventing the raw material tube from synchronously retreating. The feed chuck then clamps the raw material tube, the clamping assembly releases the raw material tube, and the feed chuck moves from the loading station to the processing station, thus conveying the raw material tube forward.

[0019] In a specific embodiment, the feed chuck is mounted on a mobile base, which is mounted on a frame along the path of movement of the raw material pipe. A drive mechanism is provided on the mobile base or the frame for driving the mobile base relative to the frame. In this embodiment, a drive motor is used to drive the mobile base, which in turn drives the feed chuck. In a further embodiment, the drive mechanism is mounted on the mobile base and includes a drive motor and a drive gear connected to the output of the drive motor. The frame is provided with a rack, and the drive gear engages with the rack. The drive motor rotates the drive gear through a reduction gearbox. The drive gear engages with the rack, thereby driving the mobile base along the rack.

[0020] Preferably, it also includes an end chuck, which is located on a frame downstream of the feed chuck in the feeding direction; the center of the end chuck is axially opposite to the center of the feed chuck; the feed chuck and the end chuck can clamp the raw pipe and rotate synchronously. The solution here specifies that the laser tube cutting machine uses a feed chuck and an end chuck to simultaneously position the raw pipe. Compared with the single chuck solution, this solution has a higher axial positioning accuracy for the raw pipe, can provide a more stable clamping effect, reduce the shaking and deformation of the pipe during the cutting process, thereby improving the cutting accuracy, and can more effectively maintain the stability of the pipe, avoiding deviation and deformation during the cutting process.

[0021] Preferably, a clamping mechanism is further provided on the frame upstream of the feed chuck in the feeding direction, with the raw material tube moving through the center of the clamping mechanism; the clamping end of the clamping mechanism is used to roll and clamp the raw material tube in position. In this solution, the clamping end of the clamping mechanism at the feed end of the frame is used to roll and clamp the raw material tube in position, thereby clamping and positioning the raw material tube during feeding. This effectively maintains the stability of the tube and avoids deviation and deformation during the cutting process.

[0022] In a specific embodiment, a mounting bracket is provided on a frame upstream of the feed chuck in the feed direction. A through-hole is provided on a mounting plate on the mounting bracket, through which the raw material tube moves. The clamping mechanism includes two sets of clamping assemblies located on either side of the mounting plate. The two sets of clamping assemblies include clamping rollers located on the upper and lower sides and left and right sides of the through-hole, respectively, to clamp and position the raw material tube. In this embodiment, the two sets of clamping assemblies on the opposite side of the mounting plate position the raw material tube in the vertical and left and right directions, respectively, thereby preventing the raw material tube from deforming to either side.

[0023] Preferably, the clamping assembly further includes a driving component and a quadrilateral linkage component connected to the output end of the driving component; the two clamping rollers located on the upper and lower sides or the left and right sides of the through hole are located on the quadrilateral linkage component, and the driving component drives the two clamping rollers to move relatively closer or farther away through the quadrilateral linkage component; in a specific solution, the quadrilateral linkage component includes a transverse slide rail and a longitudinal slide rail provided on a mounting plate at the edge of the through hole, a transverse slider provided on the transverse slide rail, and a longitudinal slider provided on the longitudinal slide rail, as well as a connecting rod hinged at both ends to the adjacent transverse slider and longitudinal slider; the output end of the driving component is connected to the transverse slider or the longitudinal slider. The above solution adopts a quadrilateral linkage component to realize synchronous operation of a relative set of clamping rollers and control of clamping and releasing. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural diagram of a laser tube cutting machine.

[0025] Figure 2 Schematic diagram of the hidden frame status of the laser tube cutting machine Figure 1 .

[0026] Figure 3 Schematic diagram of the hidden frame status of the laser tube cutting machine Figure 2 .

[0027] Figure 4 Schematic diagram of the structure of the mobile bracket.

[0028] Figure 5 Schematic diagram of the feed chuck structure Figure 1 .

[0029] Figure 6 Schematic diagram of the feed chuck structure Figure 2 .

[0030] Figure 7 Schematic diagram of the structure of the end chuck and clamping assembly.

[0031] Figure 8 Schematic diagram of the structure of the clamping mechanism Figure 1 .

[0032] Figure 9 Schematic diagram of the structure of the clamping mechanism Figure 2 . DETAILED DESCRIPTION

[0033] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0035] 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 specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, unless otherwise specified, "plurality" means two or more, unless expressly limited otherwise.

[0036] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0037] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0038] like Figures 1 to 9 The laser tube cutting machine 100 shown in FIG. 1 includes a frame 11, a movable support 2 mounted on the frame 11, a laser tube cutting assembly 3 mounted on the movable support 2, and a feed chuck 4 positioned at the center of the machine body, along the path of a raw tube a. The movable support 2 is mounted on the frame 11 and moves along the direction of the raw tube a's transport. The feed chuck 4 is capable of gripping the raw tube a and driving its rotation. The laser tube cutting assembly 3 in the laser tube cutting machine 100 is mounted on the movable support 2 and can move along the frame 11 along the path of the raw tube a, allowing processing at various axial positions of the raw tube a. During processing, the feed chuck 4 grips the raw tube a and drives its rotation, enabling laser processing, such as hole cutting, at any axial position. After processing, the tube can be cut from the raw tube a using the laser tube cutting assembly 3. This process requires the feed chuck 4 to rotate the raw tube a one revolution.

[0039] On this basis, the processing station of the feed chuck 4 in this solution is set in the middle area of ​​the moving path of the feed chuck 4 corresponding to the movable bracket 2 on the frame 11, so that the movable bracket 2 can drive the laser tube cutting assembly 3 to move to the upstream and downstream of the feed direction of the feed chuck 4. The processing station of the feed chuck 4 emphasized in the above solution refers to the position when the feed chuck 4 clamps the raw material pipe a and drives it to rotate to cooperate with the laser processing. The upstream and downstream recorded in the above solution are based on the feeding direction of the raw material pipe a, and the feeding direction of the raw material pipe a is the process of transporting from upstream to downstream.

[0040] Based on this, in the normal pipe processing process as described above, the laser tube cutting assembly 3 can process the raw pipe a downstream of the feed chuck 4. The innovation of this case is that it allows the laser tube cutting assembly 3 to move to the upstream position of the feed chuck 4. On the one hand, the end waste of the raw pipe a can be cut off, and on the other hand, the last section of the pipe unit can be laser processed first. The processing position of the above-mentioned end waste and pipe unit is calculated based on the original length of the raw pipe a and the length of the pipe unit. At this time, this part of the raw pipe a is on the outside of the feed chuck 4, so it will not be interfered with by the feed chuck 4 during processing. Then, the raw pipe a continues to be conveyed forward, and the laser tube cutting assembly 3 cooperates with the feed chuck 4 to process and cut the penultimate section of the pipe unit on the raw pipe a, and obtain the last two sections of the processed pipe unit.

[0041] In this way, this solution can use the laser tube cutting assembly 3 to move to the upstream position of the feed chuck 4 to process the last section of the pipe unit first. In this way, there is no need to leave a section of tail material at the end of the raw material pipe a for clamping, which can achieve a shorter tail material, increase the utilization rate of the raw material pipe a, and reduce costs.

[0042] exist Figure 2 and 4In the illustrated embodiment, the movable support 2 comprises a support body 21 movably mounted on the frame 11, a transverse movable joint 22 movably mounted on the support body 21, and a radial movable joint 23 mounted on the transverse movable joint 22. The laser tube cutting assembly 3 is mounted on the radial movable joint 23. The transverse movable joint 22 drives the laser tube cutting assembly 3 to move horizontally perpendicular to the feed direction of the raw material tube a, while the radial movable joint 23 drives the laser tube cutting assembly 3 to move vertically or diagonally perpendicular to the feed direction of the raw material tube a. In this embodiment, the support body 21 is constructed as a three-axis movable support 2. First, the support body 21 can move relative to the frame 11 along the feed direction of the raw material tube a. Second, the transverse movable joint 22 drives the laser tube cutting assembly 3 to move horizontally perpendicular to the feed direction of the raw material tube a. Third, the radial movable joint 23 drives the laser tube cutting assembly 3 to move vertically or diagonally perpendicular to the feed direction of the raw material tube a. This allows the laser tube cutting assembly 3 to perform laser processing on any position of the raw material tube a. In a further embodiment, the transverse moving pair 22 is provided with a rotating pair 24, which includes a swing arm 241 rotatably mounted on the transverse moving pair 22. The radial moving pair 23 is mounted on the swing arm 241 of the rotating pair 24, and the laser cutting assembly is capable of rotating relative to the axis with the swing arm 241 and moving radially relative to the swing arm 241 along the axis under the action of the radial moving pair 23. This laser cutting device has a rotating pair 24 mounted on the transverse moving pair 22, and the laser cutting assembly is mounted on the swing arm 241, capable of rotating relative to the axis with the swing arm 241. This allows the rotation of the rotating pair 24 to be controlled, thereby adjusting the cutting angle of the laser cutting device, allowing for beveling of the raw material pipe a.

[0043] In one embodiment, a traction mechanism for pulling the raw material tube a is installed on the frame 11 downstream of the feed chuck 4. The traction mechanism includes a traction manipulator for gripping the raw material tube a. The traction manipulator is mounted on the frame 11 and moves along the conveying direction of the raw material tube a. This solution, referring to the solution in CN213969533U, utilizes a clamping mechanism behind the chuck to grip the raw material tube a for traction. Based on this solution, in steps 2 and 5, the raw material tube a is conveyed forward by the length of one tube unit by gripping the raw material tube a in the traction mechanism downstream of the feed chuck 4.

[0044] exist Figures 1 to 3In another embodiment shown in Figure 7, a clamping assembly 5 is provided on the frame 11 downstream of the feed chuck 4, and the clamping assembly 5 includes a group of clamping arms 51 for clamping the raw material pipe a. The feed chuck 4 is arranged on the frame 11 to move along the conveying direction of the raw material pipe a. The feed chuck 4 cooperates with the clamping assembly 5 to drive the feeding of the raw material pipe a. The movable bracket 2 can at least drive the laser tube cutting assembly 3 to move to the upstream and downstream of the feed chuck 4 in the processing station in the feeding direction. In the scheme here, the clamping assembly 5 is only used to clamp or release the raw material pipe a, and the feed chuck 4 is constructed to be movable. In this way, when the feed chuck 4 clamps the raw material pipe a and rotates for laser processing, the clamping assembly 5 releases the raw material pipe a. Only when the feed chuck 4 retreats to the loading station does the clamping assembly 5 clamp the raw tube a to prevent the raw tube a from synchronously retreating. Then, the feed chuck 4 clamps the raw tube a, the clamping assembly 5 releases the raw tube a, and the feed chuck 4 moves from the loading station to the processing station, thus conveying the raw tube a forward. Therefore, in steps 2 and 5 of the above-mentioned laser tube cutting method, the raw tube a is conveyed forward by the length of one tube unit as follows: the feed chuck 4 is moved along the conveying direction of the raw tube a and is set on the frame 11. The clamping assembly 5 is set on the frame 11 downstream of the feed chuck 4; the feed chuck 4 and the clamping assembly 5 alternately clamp the raw tube a, and the feed chuck 4 drives the tube to be fed by the reciprocating motion.

[0045] Figure 5 and 6 In the specific embodiment shown, the feed chuck 4 is arranged on a mobile base 41, and the mobile base 41 is arranged on the frame 11 along the moving path of the raw material pipe a. The mobile base 41 or the frame 11 is provided with a driving mechanism for driving the mobile base 41 to move relative to the frame 11. This solution uses a driving motor to drive the mobile base 41 to move, thereby driving the feed chuck 4 to move. In a further solution, the driving mechanism is arranged on the mobile base 41, and the driving mechanism includes a driving motor 42 and a driving gear 43 connected to the output end of the driving motor 42. A rack 44 is provided on the frame 11, and the driving gear 43 is engaged with the rack 44. The driving motor 42 drives the driving gear 43 to rotate through the reduction gear box. Since the driving gear 43 is engaged with the rack 44, the mobile base 41 is driven to move along the rack 44.

[0046] In addition, as shown in 1 to 3 and 7, the scheme also includes an end chuck 6, which is located on the frame 11 downstream of the feed chuck 4 in the feeding direction. The center of the disk body of the end chuck 6 is axially opposite to the center of the disk body of the feed chuck 4. The feed chuck 4 and the end chuck 6 can clamp the raw material pipe a and rotate synchronously. The scheme here specifies that the feed chuck 4 and the end chuck 6 are used on the laser tube cutting machine 100 to simultaneously position the raw material pipe a. Compared with the single chuck scheme, this scheme has a higher axial positioning degree for the raw material pipe a, can provide a more stable clamping effect, reduce the shaking and deformation of the pipe during the cutting process, thereby improving the cutting accuracy, and can more effectively maintain the stability of the pipe, avoiding deviations and deformation during the cutting process. By adopting this scheme, in steps two, four and five of the above-mentioned laser tube cutting method, the end chuck 6 can be used to assist the feed chuck 4 in simultaneously clamping the raw tube a and driving the tube to rotate. The laser tube cutting assembly 3 processes and cuts the starting end of the raw tube a between the feed chuck 4 and the end chuck 6 to obtain a tube unit.

[0047] like Figure 1 and 2As shown in Figures 8 and 9, a clamping mechanism 7 is also provided on the frame 11 upstream of the feed direction of the feed chuck 4, and the moving path of the raw material pipe a passes through the center of the clamping mechanism 7. The clamping end of the clamping mechanism 7 is used for rolling clamping and positioning the raw material pipe a. In the scheme here, on the feed end of the frame 11, since the clamping end of the clamping mechanism 7 is used for rolling clamping and positioning the raw material pipe a, the raw material pipe a can also be clamped and positioned during the feeding process, which can more effectively maintain the stability of the pipe and avoid deviation and deformation during the cutting process. In a specific embodiment, a mounting frame 71 is provided on the frame 11 upstream of the feed direction of the feed chuck 4, and a through hole is provided on the mounting plate 72 on the mounting frame 71, and the moving path of the raw material pipe a passes through the through hole. The clamping mechanism 7 includes two groups of clamping assemblies 70 respectively located on the end faces on both sides of the mounting plate 72. The two sets of clamping assemblies 70 include clamping rollers 79 located on the upper and lower sides and the left and right sides of the through-hole, respectively. These clamping rollers 79 respectively clamp and position the raw material tube a. In this solution, the two sets of clamping assemblies 70 on the end surfaces of the mounting plate 72 respectively position the raw material tube a from the upper and lower directions and the left and right directions, thereby preventing the raw material tube a from deforming to either side. The clamping assemblies 70 also include a drive component 73 and a quadrilateral linkage assembly connected to the output end of the drive component 73. The two clamping rollers 79 located on the upper and lower sides or the left and right sides of the through-hole are located on the quadrilateral linkage assembly. The drive component 73 drives the two clamping rollers 79 to move closer or farther away from each other via the quadrilateral linkage assembly. Specifically, the quadrilateral linkage assembly includes a transverse rail 74 and a longitudinal rail 75 mounted on a mounting plate 72 at the edge of the through-hole, a transverse slider 76 mounted on the transverse rail 74, a longitudinal slider 77 mounted on the longitudinal rail 75, and a connecting rod 78 hinged at both ends to the adjacent transverse sliders 76 and 77. The output end of the drive component 73 is connected to either the transverse slider 76 or the longitudinal slider 77. The quadrilateral linkage assembly employed in this embodiment enables the synchronous operation of a pair of opposing clamping rollers 79, enabling controlled clamping and release.

[0048] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0049] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention.

Claims

1. A laser tube cutting machine, comprising a frame (11), a movable bracket (2) arranged on the frame (11), a laser tube cutting assembly (3) arranged on the movable bracket (2), and a feed chuck (4) arranged at the center of the disc body on the moving path of the raw material tube a; the movable bracket (2) is arranged on the frame (11) to move along the conveying direction of the raw material tube a, and the feed chuck (4) can clamp the raw material tube a and drive the raw material tube a to rotate; characterized in that: The processing station of the feed chuck (4) is arranged corresponding to the middle area of ​​the moving path of the movable bracket (2) on the frame (11), and the movable bracket (2) can drive the laser tube cutting assembly (3) to move to the upstream and downstream of the feed chuck (4) in the feeding direction.

2. The laser tube cutting machine according to claim 1, characterized in that: The movable bracket (2) comprises a bracket body (21) movably arranged on the frame (11), a transverse moving pair (22) movably arranged on the bracket body (21), and a radial moving pair (23) arranged on the transverse moving pair (22); the laser tube cutting assembly (3) is arranged on the radial moving pair (23), the transverse moving pair (22) drives the laser tube cutting assembly (3) to move horizontally in a direction perpendicular to the conveying direction of the raw material tube a, and the radial moving pair (23) drives the laser tube cutting assembly (3) to move vertically or in an inclined direction perpendicular to the conveying direction of the raw material tube a.

3. The laser tube cutting machine according to claim 2, characterized in that: The transverse moving pair (22) is provided with a rotating pair (24), and the rotating pair (24) includes a swing arm (241) rotatably provided on the transverse moving pair (22); the radial moving pair (23) is provided on the swing arm (241) of the rotating pair (24), and the laser cutting assembly can rotate relative to the axis point along with the swing arm (241), and can move radially along the axis point relative to the swing arm (241) under the action of the radial moving pair (23).

4. The laser tube cutting machine according to claim 1, characterized in that: A traction mechanism for pulling the raw material pipe a to move is provided on the frame (11) downstream of the feed chuck (4), and the traction mechanism includes a traction manipulator for clamping the raw material pipe a; the traction manipulator is arranged on the frame (11) and moves along the conveying direction of the raw material pipe a.

5. The laser tube cutting machine according to claim 1, characterized in that: A clamping assembly (5) is provided on the frame (11) downstream of the feed chuck (4), and the clamping assembly (5) includes a group of clamping arms (51) for clamping the raw material pipe a; the feed chuck (4) is arranged on the frame (11) in a movable manner along the conveying direction of the raw material pipe a; the feed chuck (4) cooperates with the clamping assembly (5) to drive the raw material pipe a to feed; the movable bracket (2) is at least capable of driving the laser tube cutting assembly (3) to move to the upstream and downstream of the feed chuck (4) in the processing station in the feeding direction.

6. The laser tube cutting machine according to claim 5, characterized in that: The feed chuck (4) is arranged on a movable base (41), and the movable base (41) is arranged on a frame (11) along a moving path of the raw material pipe a; a driving mechanism for driving the movable base (41) to move relative to the frame (11) is arranged on the movable base (41) or the frame (11); the driving mechanism is arranged on the movable base (41), and the driving mechanism includes a driving motor (42) and a driving gear (43) connected to the output end of the driving motor (42); a rack (44) is arranged on the frame (11), and the driving gear (43) is engaged with the rack (44).

7. The laser tube cutting machine according to claim 1, characterized in that: The invention also includes an end chuck (6), which is located on a frame (11) downstream of the feed chuck (4) in the feeding direction; the center of the disk body of the end chuck (6) is axially opposite to the center of the disk body of the feed chuck (4); the feed chuck (4) and the end chuck (6) can clamp the raw material pipe a and rotate synchronously.

8. The laser tube cutting machine according to claim 1, characterized in that: A clamping mechanism (7) is also provided on the frame (11) upstream of the feed chuck (4) in the feeding direction, and the moving path of the raw material pipe a passes through the center of the clamping mechanism (7); the clamping end of the clamping mechanism (7) is used for rolling clamping and positioning the raw material pipe a.

9. The laser tube cutting machine according to claim 8, characterized in that: A mounting frame (71) is provided on the frame (11) upstream of the feed chuck (4) in the feeding direction, and a through hole is provided on the mounting plate (72) on the mounting frame (71), and the moving path of the raw material pipe fitting a passes through the through hole; the clamping mechanism (7) includes two groups of clamping jaw assemblies (70) respectively located on the end surfaces of both sides of the mounting plate (72); the two groups of clamping jaw assemblies (70) respectively include clamping rollers (79) located on the upper and lower sides and the left and right sides of the through hole, and the clamping rollers (79) located on the upper and lower sides and the left and right sides of the through hole respectively clamp and position the raw material pipe fitting a.

10. The laser tube cutting machine according to claim 9, characterized in that: The clamping jaw assembly (70) further includes a driving component (73) and a quadrilateral linkage assembly connected to an output end of the driving component (73); two clamping rollers (79) located on the upper and lower sides or the left and right sides of the through hole are located on the quadrilateral linkage assembly, and the driving component (73) drives the two clamping rollers (79) to move relatively closer or farther away via the quadrilateral linkage assembly; The quadrilateral linkage assembly comprises a transverse slide rail (74) and a longitudinal slide rail (75) arranged on a mounting plate (72) at the edge of a through hole, a transverse slider (76) arranged on the transverse slide rail (74), a longitudinal slider (77) arranged on the longitudinal slide rail (75), and a connecting rod (78) whose two ends are hinged to adjacent transverse sliders (76) and longitudinal sliders (77); the output end of the driving component (73) is connected to the transverse slider (76) or the longitudinal slider (77).

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