Pipe supporting mechanism for a pipe cutting machine

Abstract

The utility model discloses a kind of pipe material supporting mechanism for laser pipe cutting machine discharging rack, including lifting platform assembly, adjusting pedestal assembly is provided on lifting platform assembly, two groups of support roller assemblies are provided with on adjusting pedestal assembly in inclination, two groups of support roller assemblies are arranged in the form of "V", pipe fitting stable assembly is provided on adjusting pedestal assembly;The utility model drives the support roller assembly arranged in the form of "V" by adjusting pedestal assembly, can adapt to the supporting needs of different diameter pipe material, wide adaptation range, in addition, with the aid of pipe fitting stable assembly, can effectively reduce the shaking feeling of pipe material in the process of laser pipe cutting work, improve pipe material placing stability.

Description

Technical Field

[0001] This utility model belongs to the field of laser tube cutting machine technology, and in particular relates to a tube support mechanism for a material feeding rack of a laser tube cutting machine. Background Technology

[0002] In the field of laser tube cutting, the feeding rack, as a core auxiliary equipment for tube conveying and positioning, directly affects the cutting accuracy, work efficiency, and tube safety through the performance of its tube support mechanism. With the diversification of tube processing demands in the manufacturing industry, tubes of different diameters and materials (such as stainless steel, carbon steel, and aluminum alloy tubes) are increasingly widely used in laser tube cutting operations. This places higher demands on the adaptability and stability of the feeding rack's support mechanism.

[0003] Currently, most laser tube cutting machines on the market use fixed-structure tube support mechanisms in their feeding racks. The core problems with this design are as follows: First, limited adaptability. The spacing between the support components in existing support mechanisms is mostly fixed, only suitable for tubes of a single or small diameter range. When processing tubes of different diameters, the entire support assembly must be replaced or the overall structure of the feeding rack adjusted. This operation is cumbersome and time-consuming, severely impacting production efficiency and making it difficult to meet the continuous processing needs of multiple tube specifications.

[0004] Secondly, the support stability is insufficient. Although some support mechanisms use simple roller support structures, the rollers are mostly arranged horizontally or at a fixed angle, failing to form a circumferential restraint on the pipe. During the laser pipe cutting process, the pipe will resonate along with the working process, especially at the end of the pipe away from the laser pipe cutting machine chuck, thus producing certain abnormal noises and further reducing the support stability.

[0005] In summary, existing tube support mechanisms for laser tube cutting machines have significant shortcomings in adaptability and stability, making it difficult to meet the diverse and high-precision requirements of laser tube cutting. Therefore, researchers have developed a tube support mechanism for the feeding rack of laser tube cutting machines. Utility Model Content

[0006] The purpose of this utility model is to solve the problems of existing tube support mechanisms for laser tube cutting machine feed racks, which are mostly fixed structures with limited adaptability, and the rollers are mostly arranged horizontally or at fixed angles without forming a circumferential limiting, and the tubes are prone to resonance and abnormal noise. Therefore, this utility model provides a tube support mechanism for laser tube cutting machine feed racks.

[0007] The present invention achieves the above objectives through the following technical solution: a tube support mechanism for a feeding rack of a laser tube cutting machine, comprising a lifting platform assembly, an adjusting base assembly provided on the lifting platform assembly, two sets of support roller assemblies provided at an incline on the adjusting base assembly, the two sets of support roller assemblies being arranged in a "V" shape, and a tube stabilizing assembly provided on the adjusting base assembly.

[0008] The adjusting base assembly includes an adjusting base plate, bearings are provided on both side walls of the adjusting base plate, a bidirectional threaded rod is rotatably arranged between the two sets of bearings, two sets of ball nut seats are provided on the bidirectional threaded rod, two sets of support roller assemblies are respectively arranged on the two sets of ball nut seats, an adjusting motor for driving the bidirectional threaded rod to rotate is provided on the outer side wall of one end of the adjusting base plate, a guide rail is provided on the upper surface of the adjusting base plate, two sets of guide sliders are provided on the guide rail, and the two sets of guide sliders are respectively fixedly connected to the ball nut seats on the same side;

[0009] The pipe fitting stabilizing assembly includes two sets of stabilizing support base plates respectively disposed on the two side walls of the adjusting base plate. A tightening motor is disposed on the upper surface of one of the stabilizing support base plates. A tightening groove wheel is disposed on the rotating shaft of the tightening motor. A tightening belt is wound on the tightening groove wheel. A hook is disposed at the end of the tightening belt. A hanging ring is disposed on the upper surface of the other stabilizing support base plate. The hook and the hanging ring cooperate with each other.

[0010] Furthermore, the lifting platform assembly includes a mounting base plate, on the upper surface of which two sets of guide channel steels are arranged opposite each other. A lifting arm is slidably sleeved on the two sets of guide channel steels. The adjusting base assembly is fixed to the top of the lifting arm. Guide wheels are slidably arranged inside the two sets of guide channel steels. A linkage rod is arranged between the two sets of guide wheels. Several sets of lifting cylinders are arranged between the linkage rod and the mounting base plate. Two sets of connecting plates are fixedly arranged on the linkage rod. The two sets of connecting plates are fixedly connected to the lifting arm.

[0011] Furthermore, the inner diameter of the guide channel steel matches the outer diameter of the guide wheel, and the height of the lifting arm is greater than the travel of the telescopic rod of the lifting cylinder.

[0012] Furthermore, the threads at both ends of the bidirectional threaded rod have opposite directions, and a clearance portion is provided in the middle of the bidirectional threaded rod.

[0013] Furthermore, the support roller assembly includes a roller support frame disposed on the ball nut seat, and the support roller is rotatably disposed on the roller support frame.

[0014] Beneficial effects: This utility model has a reasonable design, simple and stable structure, and strong practicality, and has the following beneficial effects:

[0015] 1. Wide adaptability to meet the needs of multiple pipe specifications: By adjusting the cooperation between the bidirectional threaded rod and the ball nut seat in the base assembly, the two sets of support roller assemblies can be driven to move closer or further away synchronously. Combined with the "V"-shaped arrangement of the support roller shaft, it can flexibly adapt to pipes of different diameters without replacing the entire set of support components. This effectively solves the problem that the existing mechanism can only adapt to a single or small range of pipe diameters, and meets the needs of continuous processing of multiple pipe specifications.

[0016] 2. Stable support and reduced pipe resonance noise: The two sets of support roller assemblies are arranged in an inclined "V" shape to form a ring-shaped limit on the pipe. Combined with the tightening and fixing effect of the tightening belt in the pipe fitting stabilizing assembly, it can effectively limit the radial displacement of the pipe during the support process, greatly reduce the abnormal noise caused by pipe resonance, improve support stability, and ensure pipe cutting accuracy.

[0017] 3. Precise and stable height adjustment for more efficient connection with the tube cutting machine: In the lifting platform assembly, the matching and cooperation of the guide channel steel and the guide wheel provide stable guidance for the lifting arm. The lifting cylinder drives the linkage rod to smoothly raise and lower the lifting arm. Moreover, the height of the lifting arm is greater than the stroke of the lifting cylinder extension rod, which can precisely adjust the height of the support mechanism to ensure accurate connection with the feeding height of the laser tube cutting machine. This avoids the impact of height deviation on the continuity of processing and improves work efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the lifting platform assembly of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the adjusting base assembly of this utility model.

[0021] In the diagram: 1-Lifting platform assembly, 2-Adjusting base assembly, 3-Support roller assembly, 4-Pipe stabilizing assembly;

[0022] 101-Mounting base plate, 102-Guide channel steel, 103-Lifting arm, 104-Guide wheel, 105-Linkage rod, 106-Lifting cylinder, 107-Connecting plate, 201-Adjusting base plate, 202-Bearing, 203-Double threaded rod, 204-Ball nut seat, 205-Adjusting motor, 206-Guide rail, 207-Guide slider, 301-Roller support frame, 302-Supporting roller, 401-Stable support base plate, 402-Tightening motor, 403-Tightening groove wheel, 404-Tightening belt, 405-Hook, 406-Hanging ring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Example 1:

[0025] Combination Figure 1-3 The illustrated tube support mechanism for a laser tube cutting machine's feeding rack has the core function of providing stable support and flexible adjustment for the tubes during the feeding process. The specific structure includes a lifting platform assembly 1, an adjusting base assembly 2, a support roller assembly 3, and a tube stabilizing assembly 4. These components work together precisely to achieve height adjustment, spacing adaptation, and stable positioning of the supported tubes. The overall structure and working logic are as follows:

[0026] The lifting platform assembly 1 serves as the basic support and height adjustment unit of the entire support mechanism. Its top is fixedly connected to the adjusting base assembly 2. Through its own lifting action, it can drive the adjusting base assembly 2 and the support roller assembly 3 and pipe stabilizing assembly 4 above it to lift synchronously, thereby adapting to the material feeding requirements of laser tube cutting machines at different heights. The adjusting base assembly 2 is installed on the top of the lifting platform assembly 1 and is the core structure for realizing the spacing adjustment of the support roller assembly 3. Through the cooperation of the drive component and the transmission structure, it can drive the two sets of support roller assemblies 3 to move synchronously closer or further apart. There are two sets of support roller assemblies 3 in total. The pipe is installed at an angle on the adjusting base assembly 2, and the two sets of support roller assemblies 3 are arranged in a "V" shape. This arrangement can form a ring-shaped support for the pipe by using the inclined structure. The contact between the roller surface of the two sets of support roller assemblies 3 and the outer wall of the pipe provides stable support and limit for the pipe. At the same time, the rotation characteristics of the support roller assemblies 3 can reduce the frictional resistance when the pipe moves axially. The pipe stabilizing assembly 4 is set on the adjusting base assembly 2 and located on the side of the two sets of support roller assemblies 3. It is used to further reinforce the pipe after it is placed on the support roller assemblies 3 to prevent the pipe from moving during processing.

[0027] The specific structure and fit of the adjusting base assembly 2 are as follows: It includes an adjusting base plate 201 for supporting various components. A set of bearings 202 are fixedly installed on each of the two end side walls of the adjusting base plate 201. The inner rings of the two sets of bearings 202 are interference-fitted with the outer rings of the two ends of the bidirectional threaded rod 203. Through the support of the bearings 202, the bidirectional threaded rod 203 can rotate flexibly between the two ends of the adjusting base plate 201. Two sets of ball nut seats 204 are sleeved on the bidirectional threaded rod 203. The inner rings of the ball nut seats 204... The threaded rod 203 and the external thread of the bidirectional threaded rod 203 form a helical drive engagement. When the bidirectional threaded rod 203 rotates, the two sets of ball nut seats 204 can move synchronously (closer or further away) along the axial direction of the bidirectional threaded rod 203. The two sets of support roller assemblies 3 are respectively fixedly installed on the upper surface of the two sets of ball nut seats 204 by bolts, so that the movement of the ball nut seats 204 can directly drive the support roller assemblies 3 to synchronously adjust the spacing, thereby adapting to pipes of different diameters. To drive the bidirectional threaded rod 203 to rotate, the base plate 2 is adjusted. An adjusting motor 205 is fixedly mounted on the outer wall of one end of the 01 via a motor mounting bracket. The output shaft of the adjusting motor 205 is coaxially connected to one end of the bidirectional threaded rod 203 via a coupling. When the adjusting motor 205 is powered on, its output torque can be transmitted to the bidirectional threaded rod 203 via the coupling, causing the bidirectional threaded rod 203 to rotate around its own axis. In addition, to prevent the ball nut seat 204 from shifting circumferentially with the rotation of the bidirectional threaded rod 203 and to ensure that it only moves axially, a guide rail 206 is fixedly mounted on the upper surface of the adjusting base plate 201 via bolts. The extension direction of the guide rail 206 is parallel to the axial direction of the bidirectional threaded rod 203. Two sets of guide sliders 207 are slidably sleeved on the guide rail 206. The upper surfaces of the two sets of guide sliders 207 are welded and fixed to the lower surface of the ball nut seat 204 on the same side. Through the sliding cooperation between the guide rail 206 and the guide sliders 207, the movement of the ball nut seat 204 is guided and limited, ensuring that the spacing adjustment of the support roller assembly 3 is accurate and stable.

[0028] The structure and engagement logic of the pipe fitting stabilizing assembly 4 are as follows: It includes two sets of stabilizing support base plates 401 for supporting components. The two sets of stabilizing support base plates 401 are respectively fixed to the two side walls of the adjusting base plate 201 by welding. A tightening motor 402 is fixedly mounted on the upper surface of one of the stabilizing support base plates 401 by bolts. The end of the rotating shaft of the tightening motor 402 is fixedly fitted with a tightening groove wheel 403 by a key connection. An annular groove is opened at the rim of the tightening groove wheel 403 to accommodate and limit the tightening belt 404. One end of the tightening belt 404 is fixedly wound in the annular groove of the tightening groove wheel 403, and the other end is fixedly connected to a hook 405. The upper surface of the other stabilizing support base plate 401... The support roller assembly 3 is fixed with a hanging ring 406 by bolts. The position of the hanging ring 406 corresponds to the position of the hook 405. When it is necessary to stabilize the pipe on the support roller assembly 3, the hook 405 can be hooked onto the hanging ring 406. Then, the tightening motor 402 is started. The tightening motor 402 drives the tightening groove wheel 403 to rotate. The rotation of the tightening groove wheel 403 winds and tightens the tightening belt 404, so that the tightening belt 404 is close to the outer wall of the pipe, forming a lateral binding and limiting of the pipe, preventing the pipe from radially moving during processing. At the same time, when the pipe needs to be processed, transported or removed, simply start the tightening motor 402 in the opposite direction to loosen the tightening belt 404. The operation is convenient and the stabilizing effect is reliable.

[0029] In this embodiment, the lifting platform assembly 1 serves as the core unit for height adjustment of the entire pipe support mechanism. It includes a mounting base plate 101 for fixing to the base of the laser pipe cutting machine's unloading rack. The mounting base plate 101 is made of high-strength steel plate and is fixed to the ground or the unloading rack frame using expansion bolts, providing a stable mounting foundation for the entire lifting platform assembly 1. Two sets of guide channel steels 102 are arranged parallel to each other on the upper surface of the mounting base plate 101. The two sets of guide channel steels 102 are fixedly connected to the mounting base plate 101 by welding, and the openings of the two sets of guide channel steels 102 face each other, forming symmetrical guide channels. Lifting arms 103 are slidably mounted on two sets of guide channel steels 102. The lifting arms 103 are hollow steel tubes, with their inner wall cross-sectional dimensions matching the outer diameter cross-sectional dimensions of the two sets of guide channel steels 102. The lifting arms 103 can slide up and down along the length (vertical direction) of the guide channel steels 102. To reduce sliding friction between the lifting arms 103 and the guide channel steels 102 and ensure smooth and stable lifting, guide wheels 104 are slidably mounted inside each set of guide channel steels 102. A linkage rod 105 is transversely mounted between the axles of the two sets of guide wheels 104. The linkage rod 105 is a seamless steel tube structure, with both ends rotatably connected to the axles of the guide wheels 104 via bearings. This allows the two sets of guide wheels 104 to rotate synchronously under the linkage of the linkage rod 105, preventing the lifting arms 103 from tilting due to jamming on one side of the guide wheel 104, thus providing lifting power to the lifting platform assembly 1. To reduce power, several sets of lifting cylinders 106 are evenly arranged between the linkage rod 105 and the mounting base plate 101. The bottom of the cylinder body of the lifting cylinder 106 is hinged to the cylinder support on the upper surface of the mounting base plate 101. The piston rod end of the lifting cylinder 106 is connected to the linkage rod 105 through a joint. In order to realize the power transmission between the linkage rod 105 and the lifting arm 103, two sets of connecting plates 107 are welded and fixed on the linkage rod 105. The two sets of connecting plates 107 are located at both ends of the linkage rod 105, and the top of the two sets of connecting plates 107 are fixedly connected to the lower surface of the lifting arm 103 by bolts. When the linkage rod 105 moves up and down under the drive of the lifting cylinder 106, it will drive the lifting arm 103 to move up and down synchronously along the guide channel steel 102 through the connecting plates 107, and finally realize the height adjustment to ensure that the pipe can accurately align with the feeding height of the laser pipe cutting machine.

[0030] In this embodiment, to ensure the accuracy and stability of the lifting action of the lifting platform assembly 1, the inner diameter of the two sets of guide channel steels 102 and the outer diameter of the guide wheel 104 must be strictly matched. This makes the lifting arm 103 drive the adjusting base assembly 2 to lift more smoothly, avoiding the impact of shaking on the stability of the pipe support. At the same time, the height of the lifting arm 103 must be designed to be greater than the travel of the telescopic rod of the lifting cylinder 106. When the telescopic rod of the lifting cylinder 106 reaches its maximum travel, the top of the lifting arm 103 can still maintain effective sliding contact with the guide channel steel 102, and the bottom does not leave the constraint range of the guide channel steel 102. This avoids the situation where the lifting arm 103 tilts or falls out of the guide when the telescopic rod of the lifting cylinder 106 is fully extended due to insufficient height, thus ensuring the safety and reliability of the lifting action.

[0031] In this embodiment, the threads at both ends of the bidirectional threaded rod 203 are designed to have opposite directions, specifically, one end uses a right-hand thread and the other end uses a left-hand thread, and the pitch, tooth angle, and thread accuracy of the threads at both ends are consistent. This reverse thread structure forms a precise fit with the two sets of ball nut seats 204, which can ensure that the two sets of support roller assemblies 3 always maintain symmetrical spacing adjustment. At the same time, a clearance part is provided in the middle of the bidirectional threaded rod 203. This clearance part is a smooth cylindrical section without threads in the middle of the bidirectional threaded rod 203. When the two sets of ball nut seats 204 move towards the middle under the drive of the bidirectional threaded rod 203, the clearance part can prevent the two sets of ball nut seats 204 from moving further, ensuring the safety of the adjustment process.

[0032] In this embodiment, the support roller assembly 3 includes a roller support frame 301 for providing rigid support. The roller support frame 301 is fixedly connected to the upper surface of the ball nut seat 204. The top of the roller support frame 301 is inclined. Two sets of deep groove ball bearings are embedded in the inner wall of the top structure. The inner ring of the bearing is provided with a support roller 302 to form a rotational fit relationship. The lateral limiting effect of the inclined surface restricts the radial movement of the pipe and also facilitates the subsequent transportation of the pipe.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A tube support mechanism for a feeding rack of a laser tube cutting machine, characterized in that: The system includes a lifting platform assembly (1), an adjusting base assembly (2) is provided on the lifting platform assembly (1), two sets of support roller assemblies (3) are inclinedly provided on the adjusting base assembly (2), the two sets of support roller assemblies (3) are arranged in a "V" shape, and a pipe fitting stabilizing assembly (4) is provided on the adjusting base assembly (2). The adjusting base assembly (2) includes an adjusting base plate (201). Bearings (202) are provided on both side walls of the adjusting base plate (201). A bidirectional threaded rod (203) is rotatably arranged between the two sets of bearings (202). Two sets of ball nut seats (204) are provided on the bidirectional threaded rod (203). Two sets of support roller assemblies (3) are respectively arranged on the two sets of ball nut seats (204). An adjusting motor (205) for driving the bidirectional threaded rod (203) to rotate is provided on the outer side wall of one end of the adjusting base plate (201). A guide rail (206) is provided on the upper surface of the adjusting base plate (201). Two sets of guide sliders (207) are provided on the guide rail (206). The two sets of guide sliders (207) are respectively fixedly connected to the ball nut seats (204) on the same side. The pipe fitting stabilizing assembly (4) includes two sets of stabilizing support base plates (401) respectively disposed on the two side walls of the adjusting base plate (201). A tightening motor (402) is disposed on the upper surface of one of the stabilizing support base plates (401). A tightening groove wheel (403) is disposed on the rotating shaft of the tightening motor (402). A tightening belt (404) is wound on the tightening groove wheel (403). A hook (405) is disposed at the end of the tightening belt (404). A hanging ring (406) is disposed on the upper surface of the other stabilizing support base plate (401). The hook (405) and the hanging ring (406) form a cooperation.

2. The tube support mechanism for a laser tube cutting machine feeding rack according to claim 1, characterized in that: The lifting platform assembly (1) includes a mounting base plate (101). Two sets of guide channel steels (102) are arranged opposite each other on the upper surface of the mounting base plate (101). Lifting arms (103) are slidably sleeved on the two sets of guide channel steels (102). The adjusting base assembly (2) is fixed to the top of the lifting arm (103). Guide wheels (104) are slidably arranged in both sets of guide channel steels (102). A linkage rod (105) is arranged between the two sets of guide wheels (104). Several sets of lifting cylinders (106) are arranged between the linkage rod (105) and the mounting base plate (101). Two sets of connecting plates (107) are fixedly arranged on the linkage rod (105). The two sets of connecting plates (107) are fixedly connected to the lifting arm (103).

3. The tube support mechanism for a laser tube cutting machine feeding rack according to claim 2, characterized in that: The inner diameter of the guide channel steel (102) matches the outer diameter of the guide wheel (104), and the height of the lifting arm (103) is greater than the travel of the telescopic rod of the lifting cylinder (106).

4. The tube support mechanism for a laser tube cutting machine feeding rack according to claim 3, characterized in that: The threads at both ends of the bidirectional threaded rod (203) are in opposite directions, and a clearance portion is provided in the middle of the bidirectional threaded rod (203).

5. A tube support mechanism for a laser tube cutting machine feeding rack according to claim 4, characterized in that: The support roller assembly (3) includes a roller support frame (301) disposed on the ball nut seat (204), and a support roller (302) is rotatably disposed on the roller support frame (301).

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