High-pressure gas cylinder inner container forced rotation pipe saw cutting device

By designing a high-pressure gas cylinder inner liner strong spinning tube sawing device, which utilizes a moving support and distance measuring mechanism to achieve automated positioning and precise sawing, the problem of low sawing efficiency and poor precision in the strong spinning thinning forming process is solved, thereby improving production efficiency and product quality.

CN224222848UActive Publication Date: 2026-05-12JIANGSU AOSHENG COMPOSITE HYDROGEN ENERGY TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU AOSHENG COMPOSITE HYDROGEN ENERGY TECHNOLOGY CO LTD
Filing Date
2025-06-06
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

In the existing technology, the high-power spinning thinning forming process has problems such as low sawing efficiency, complicated operation, and poor workpiece symmetry, making it difficult to achieve automation and mass production. In addition, ordinary sawing machines cannot guarantee the perpendicularity of the sawing end face to the workpiece axis, which affects the quality and safety of the gas cylinder neck.

Method used

A high-pressure gas cylinder inner liner strong rotating tube sawing device was designed, including a moving support mechanism, a ranging mechanism and a sawing mechanism. The device achieves precise positioning and automated conveying of the strong rotating tube through the cooperation of support blocks, positioning blocks and clamping cylinders. The sawing position is measured in real time using a ranging device and a PLC system to ensure sawing accuracy. The clamping mechanism prevents displacement and scratches, realizing unmanned automated sawing.

Benefits of technology

It improves the precision of the sawing position and production efficiency, ensures the performance consistency and symmetrical aesthetics of the two ends of the gas cylinder liner, reduces the defect rate, meets the quality requirements of high-pressure gas cylinders for the end of the liner, and improves production efficiency and product reliability.

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Abstract

The utility model discloses a high-pressure gas cylinder liner forced coil pipe saw cutting device which comprises a movable supporting mechanism which is movably arranged on a base, a forced coil pipe is supported on the movable supporting mechanism, and the movable supporting mechanism can be driven by a front-back movement driving mechanism to move front and back. The forced rotation pipe moves back and forth; the distance measuring mechanism is located above the forced coil pipe and used for measuring the sawing position according to the length of the forced coil pipe; and the sawing mechanism is arranged above the forced coil pipe and is used for sawing the forced coil pipe according to the sawing position. The saw cutting device can solve the problems of low saw cutting efficiency, complex operation, poor workpiece symmetry and the like of the gas cylinder liner forced coil pipe, effectively improves the accuracy of the saw cutting position, realizes unmanned automatic saw cutting, and greatly improves the production efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of gas cylinder production technology, and in particular to a high-pressure gas cylinder inner liner strong rotary tube sawing device. Background Technology

[0002] Aluminum liners for high-pressure gas cylinders in vehicles are key components of new energy vehicles (such as hydrogen fuel cell vehicles and CNG vehicles). They are primarily used to store high-pressure gases (such as hydrogen and natural gas) and are crucial for ensuring the normal operation of the vehicle. In recent years, with the rapid development of the new energy vehicle industry, the market demand for aluminum liners for high-pressure gas cylinders has been continuously increasing, and the requirements for their performance and quality have also been rising.

[0003] The manufacturing process of aluminum inner liner for automotive high-pressure gas cylinders involves a variety of complex processes, mainly including two methods: stamping and stretching thinning forming and high-pressure spinning thinning forming.

[0004] The stamping and stretching thinning forming method uses multiple stamping and stretching processes to gradually shape an aluminum sheet into the form of a gas cylinder liner. This method offers advantages such as high product quality, high dimensional accuracy, and good surface finish, meeting the stringent requirements of high-pressure gas cylinders for strength, sealing, and durability. However, the stamping and stretching thinning forming process is complex, requiring multiple sets of expensive molds and high-precision stamping equipment, resulting in high equipment and mold investment and relatively high production costs.

[0005] The high-pressure spinning thinning forming method utilizes a spinning machine to forcefully spin seamless aluminum tubes, gradually thinning the tubes and forming them into the inner liner of gas cylinders. This method has advantages such as simple processes, low equipment investment, and low cost, making it particularly suitable for producing large-diameter, large-volume gas cylinders. The high-pressure spinning thinning forming process achieves uniform material deformation, improves material utilization, and reduces processing steps, thereby lowering production costs. Therefore, the high-pressure spinning thinning forming method has gradually become the mainstream manufacturing process for aluminum inner liners of automotive high-pressure gas cylinders.

[0006] However, the high-strength spinning and thinning forming process also has some limitations. Due to differences in tube blank dimensions (such as diameter, wall thickness, and length) and material properties, the length of the formed cylinder varies considerably, resulting in poor consistency. This poses a challenge to subsequent sawing processes. Ordinary saws are difficult to automate and mass-produce, requiring manual measurement, marking, and feeding to control the symmetry of the aluminum inner tube and the consistency of the end caps. Manual operation is not only inefficient but also prone to introducing errors, affecting product quality stability and making it difficult to meet the needs of large-scale production.

[0007] Furthermore, high-pressure gas cylinders have extremely high performance requirements for their necking ends, especially bottomless double-ended cylinders. To ensure the consistency and symmetrical aesthetics of the cylinder necking performance, the high-pressure spinning tube (high-pressure spinning cylinder tube) typically adopts a variable-diameter irregular cylindrical structure that is thick at both ends and thin in the middle. While this structure effectively improves the performance of the necking end, the symmetry of the thickened sections at both ends must be ensured during sawing; otherwise, the quality and safety of the gas cylinder will be affected. Simultaneously, a safety distance of 5-10mm is usually left at the end of the tube blank to prevent collision between the spinning wheel and the spinning die, which would result in a 5-10mm boss at the end of the high-pressure spinning tube. Ordinary sawing machines use roller and roller conveyor systems, which cause interference between the boss and the roller or roller conveyor, making automated conveying impossible. Moreover, the perpendicularity of the sawn end face to the workpiece axis cannot be guaranteed during sawing, thus compromising the quality of the cylinder necking end.

[0008] Currently, there is an increasingly urgent need within the industry to improve the automation level and cutting precision of high-strength spinning and thinning forming processes. Developing equipment capable of automatic conveying and precise sawing is of great significance for improving production efficiency, reducing production costs, and ensuring product quality. Utility Model Content

[0009] To address the aforementioned technical problems, the purpose of this utility model is to provide a high-pressure gas cylinder inner liner sawing device. This sawing device can solve problems such as low sawing efficiency, complex operation, and poor workpiece symmetry in high-pressure gas cylinder inner liner sawing, effectively improving sawing position accuracy, realizing unmanned automated sawing, and greatly improving production efficiency.

[0010] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution:

[0011] This utility model provides a high-pressure gas cylinder inner liner strong rotary tube sawing device, which includes:

[0012] A movable support mechanism is movably mounted on a base, and a powerful rotating tube is supported on the movable support mechanism. The movable support mechanism can move back and forth under the drive of a front and rear moving drive mechanism, so that the powerful rotating tube can move back and forth.

[0013] A ranging mechanism, located above the high-speed rotating tube, is used to determine the sawing position based on the length of the high-speed rotating tube;

[0014] A sawing mechanism is disposed above the high-speed rotating tube and is used to saw the high-speed rotating tube according to the sawing position.

[0015] Furthermore, the mobile support mechanism includes a mobile platform and two support blocks respectively disposed on the front and rear sides of the mobile platform; the mobile platform is connected to the front and rear moving drive mechanism, and the strong rotating tube is supported on the two support blocks.

[0016] Furthermore, the mobile support mechanism also includes a positioning block disposed at one end of the mobile platform and a clamping cylinder disposed at the other end of the mobile platform; the clamping cylinder cooperates with the positioning block to clamp and position the powerful rotating tube.

[0017] This invention ensures precise positioning of the spun tube through the cooperation of the support block, positioning block, and clamping cylinder in the moving support mechanism, and realizes automated forward and backward conveying of the spun tube by using the forward and backward moving drive mechanism to drive the moving support mechanism, effectively solving the positioning and conveying problems caused by the difference in tube blank size in the powerful spinning and thinning forming process.

[0018] Furthermore, the sawing device also includes a clamping mechanism, which includes a clamping support frame, a clamping cylinder, and a movable clamping frame; the clamping cylinder is mounted on the clamping support frame, the movable clamping frame is slidably fitted on the clamping support frame, and the movable clamping frame is connected to the clamping cylinder; the clamping cylinder drives the movable clamping frame to descend, so as to clamp the rotary tube.

[0019] Furthermore, the clamping mechanism is provided in two sets, which are used to clamp the front and rear of the strong vortex tube respectively.

[0020] This invention uses a clamping mechanism to press the vortex tube, which not only effectively prevents the vortex tube from shifting during sawing and ensures sawing accuracy, but also avoids scratches on the surface of the vortex tube, thus ensuring product quality.

[0021] Furthermore, the ranging mechanism includes a ranging device and a ranging lifting mechanism that drives the ranging device to rise and fall.

[0022] Furthermore, the ranging device is a proximity sensor, laser sensor, photoelectric sensor, ultrasonic sensor, or industrial camera.

[0023] Furthermore, the ranging lifting mechanism includes a ranging support frame, a ranging lifting cylinder mounted on the ranging support frame, and a movable guide frame slidably fitted on the ranging support frame. The movable guide frame is connected to the ranging lifting cylinder, and the ranging device is mounted on the movable guide frame. The ranging lifting cylinder drives the movable guide frame to rise and fall, so as to raise and fall the ranging device.

[0024] During the movement of the rotary tube, the ranging device monitors and measures the distance to the tube surface in real time. An external PLC system connected to the ranging device reads the distance data in real time with a millisecond-level response speed. Based on extensive experimental data and intelligent algorithms, the system automatically calculates the sawing position of the rotary tube, achieving high-precision determination of the sawing position. This ranging mechanism of the present invention achieves a sawing position accuracy of ±0.2mm, effectively solving the error problem caused by manual measurement and marking in ordinary sawing machines, realizing truly unmanned automated sawing, and significantly improving production efficiency.

[0025] Furthermore, the sawing mechanism includes a sawing lifting mechanism, a saw blade, and a saw blade rotating mechanism. The saw blade rotating mechanism is slidably mounted on the sawing support frame, and the saw blade is connected to the saw blade rotating mechanism. The sawing lifting mechanism drives the saw blade rotating mechanism to rise and fall, and the saw blade cuts the rotary tube according to the sawing position.

[0026] The sawing method of this high-pressure gas cylinder inner liner strong rotary tube sawing device includes the following steps:

[0027] S1, Place the strong rotating tube on the moving support mechanism and tighten and position the strong rotating tube;

[0028] S2, the forward and backward movement drive mechanism drives the mobile support mechanism to move forward and backward, and the distance measuring mechanism measures in real time and calculates the sawing position;

[0029] S3, the forward and backward moving drive mechanism moves the strong rotating tube through the moving support mechanism so that the sawing position at one end of the strong rotating tube reaches below the sawing mechanism, and the sawing mechanism saws the strong rotating tube according to the sawing position.

[0030] S4. Following step S3, complete the sawing of the other end of the strong vortex tube.

[0031] The technical effects of this utility model are as follows:

[0032] This invention utilizes a mobile support mechanism to support and position the spun tube. Driven by a forward and backward movement mechanism, the mobile support mechanism moves back and forth, enabling the spun tube to be automatically transported and positioned without frequent manual intervention. This effectively solves the positioning and transport problems caused by differences in tube blank size in the spun thinning forming process, improves production efficiency, and reduces labor costs.

[0033] The distance measuring mechanism in this invention can accurately measure the sawing position based on the actual length of the rotary tube, avoiding errors that may occur with manual measurement and ensuring the accuracy of the sawing position.

[0034] The sawing mechanism in this invention saws the powerful rotating tube according to the precise position determined by the distance measuring mechanism, which effectively improves the sawing accuracy and ensures the consistency of the performance and the symmetrical aesthetics of the two ends of the gas cylinder liner.

[0035] The device of this invention is applicable to high-strength spinning and thinning forming of high-strength spinning tubes, especially for high-strength spinning tubes with thick ends and thin middle, as well as high-strength spinning tubes with bosses at the ends. It can effectively realize automated conveying and precise sawing, and has good adaptability to high-strength spinning tubes of different lengths, diameters and wall thicknesses. It effectively solves the problems of difficulty in ensuring perpendicularity and inability to automatically convey when ordinary sawing machines are sawing such special structure tubes.

[0036] This invention effectively ensures the perpendicularity of the sawing end face to the workpiece axis through reasonable support, positioning, and conveying of the powerful rotating tube, as well as precise sawing position positioning. This ensures the quality of the gas cylinder's necking end, meets the stringent requirements of high-pressure gas cylinders for necking end performance, improves the overall quality and reliability of the product, and reduces the defect rate caused by sawing accuracy issues. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the high-pressure gas cylinder inner liner strong rotary tube sawing device of this utility model.

[0038] Figure 2 This is a partial structural schematic diagram of the high-pressure gas cylinder inner liner strong rotary tube sawing device of this utility model.

[0039] Figure 3 This is a schematic diagram showing the cooperation between the mobile support mechanism and the front and rear moving drive mechanism in this utility model.

[0040] Figure 4 This is a schematic diagram of the pressing mechanism in this utility model.

[0041] Figure 5 This is a schematic diagram of the distance measuring mechanism in this utility model.

[0042] Figure 6 This is a flowchart illustrating the sawing method implemented by the sawing device of this utility model.

[0043] Figure 7 This is a schematic diagram of the structure of the strong vortex tube in the embodiment of this utility model.

[0044] In the diagram, 1: base, 2: moving platform, 3: support block, 4: positioning block, 5: clamping cylinder, 6: front and rear drive servo motor, 7: lead screw, 8: ranging device, 9: ranging support frame, 901: positioning hole, 10: moving guide frame, 11: ranging lifting cylinder, 12: positioning pin, 13: saw blade, 14: saw blade rotation motor, 15: saw blade adjustment mechanism, 16: sawing support frame, 17: clamping support frame, 18: clamping cylinder, 19: moving clamping frame, 20: strong rotating tube, 201: thickened section, 202: middle section. Detailed Implementation

[0045] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0046] like Figures 1 to 7 As shown, this utility model provides a high-pressure gas cylinder inner liner sawing device, wherein the strong rotating tube 20 is a variable diameter irregular cylindrical structure with thick ends and thin middle, including a middle section 202 located in the middle and thickened sections 201 located at both ends. The sawing device includes a moving support mechanism, a ranging mechanism, a clamping mechanism, and a sawing mechanism.

[0047] The movable support mechanism is movably mounted on the base 1 via a slide rail and slider. The powerful rotating tube 20 is supported on the movable support mechanism, which can move back and forth under the drive of a front-to-back moving drive mechanism, thereby enabling the powerful rotating tube 20 to move back and forth. The front-to-back moving drive mechanism is controlled by a servo motor control system. The movable support mechanism includes a movable platform 2 and two support blocks 3 respectively located on the front and rear sides of the movable platform 2. The movable platform 2 is connected to the front-to-back moving drive mechanism, and the powerful rotating tube 20 is supported on the two support blocks 3. Specifically, the upper side of the two support blocks 3 has a V-shaped structure, and the two support blocks 3 respectively cooperate with the thickened sections 201 at both ends of the powerful rotating tube 20 for support. The support blocks 3 are made of 6061 aluminum alloy or nylon, brass, or other materials with a hardness not exceeding that of 6061 aluminum alloy, or the main body is made of steel, with the support surface made of nylon, rubber, or other materials to effectively prevent scratches on the workpiece surface. The mobile support mechanism also includes a positioning block 4 located at one end of the mobile platform 2 and a clamping cylinder 5 located at the other end of the mobile platform 2. The clamping cylinder 5 cooperates with the positioning block 4 to clamp and position the strong rotating tube 20.

[0048] The forward and backward movement drive mechanism includes a forward and backward drive servo motor 6 and a lead screw 7 mounted on the base 1. The moving platform 2 in the moving support mechanism is movably connected to the lead screw 7. The forward and backward drive servo motor drives the lead screw 7 to rotate, thereby driving the moving support mechanism to move forward and backward.

[0049] The positions of the two support blocks 3 and the positioning block 4 on the moving platform 2 are adjustable to accommodate high-speed rotating tube workpieces of different sizes.

[0050] This utility model ensures the precise positioning of the strong spinning tube 20 on the moving support mechanism through the cooperation of the support block 3, positioning block 4 and clamping cylinder 5 in the moving support mechanism, and realizes the automatic forward and backward conveying of the strong spinning tube 20 by using the forward and backward moving drive mechanism to drive the moving support mechanism, effectively solving the positioning and conveying problems caused by the difference in tube blank size in the strong spinning thinning forming process.

[0051] The ranging mechanism is located above the high-speed rotating tube 20 and is used to determine the cutting position based on the length of the high-speed rotating tube. The ranging mechanism includes a ranging device 8 and a ranging lifting mechanism that drives the ranging device 8 to move up and down. The ranging device 8 can be selected from a proximity sensor, laser sensor, photoelectric sensor, ultrasonic sensor, or industrial camera.

[0052] The ranging lifting mechanism includes a ranging support frame 9, a ranging lifting cylinder 11 mounted on the ranging support frame 9, and a movable guide frame 10 slidably mounted on the ranging support frame 9 through the cooperation of a slide rail and a slider. The movable guide frame 10 is connected to the ranging lifting cylinder 11, and the ranging device 8 is mounted on the movable guide frame 10. The ranging lifting cylinder 11 drives the movable guide frame 10 to rise and fall, so that the ranging device 8 rises and falls.

[0053] The ranging support frame 9 is also provided with multiple positioning holes 901 along the height direction. Positioning pins 12 can be inserted into the positioning holes 901. By adjusting the position of the positioning pins 12, the lifting height range of the ranging device 8 can be adjusted.

[0054] As the powerful rotating tube 20 moves with the mobile support mechanism, the ranging device 8 monitors and measures the distance from the surface of the powerful rotating tube in real time. The external PLC system connected to the ranging device reads the distance data in real time with a millisecond-level response speed. Based on a large amount of experimental data and intelligent algorithms, the system automatically calculates the sawing position of the powerful rotating tube 20, achieving high-precision determination of the sawing position.

[0055] A sawing mechanism is positioned above the high-powered rotary tube 20 and is used to saw the high-powered rotary tube 20 according to the sawing position. The sawing mechanism includes a sawing lifting mechanism (not shown in the figure), a saw blade 13, and a saw blade rotation mechanism. The sawing lifting mechanism can drive the saw blade rotation mechanism to move up and down with the cooperation of a slide rail and a slider. This sawing lifting mechanism can be a cylinder lifting mechanism or a motor lifting mechanism. The saw blade rotation mechanism is slidably mounted on the sawing support frame 16. The saw blade rotation mechanism includes a saw blade rotation motor and two turntables. The saw blade 13 is wound around the two turntables. The saw blade rotation motor drives the turntables to rotate through a synchronous belt transmission mechanism. The saw blade 13 moves with the turntables, and during the movement, it saws the high-powered rotary tube 20 below.

[0056] In addition, the sawing mechanism also includes a saw blade adjustment mechanism 15, which acts on the saw blade 13 located above the strong rotary tube 20 to make its sawing surface vertical, so as to achieve vertical sawing.

[0057] The clamping mechanism is located above the powerful rotating tube 20 and includes a clamping support frame 17, a clamping cylinder 18, and a movable clamping frame 19. The clamping cylinder 18 is mounted on the clamping support frame 17, and the movable clamping frame 19 is slidably mounted on the clamping support frame 17 via a slide rail and a slider, and the movable clamping frame 19 is connected to the clamping cylinder 18. The lower side of the movable clamping frame 19 has a V-shaped clamping surface, on which anti-scratch nylon blocks or rubber blocks are provided. The clamping cylinder 18 drives the movable clamping frame 19 to descend, so as to clamp the powerful rotating tube 20 through the V-shaped clamping surface.

[0058] Furthermore, the clamping mechanism is provided in two sets, which are used to clamp the front and rear parts of the strong vortex tube 20 respectively.

[0059] This invention uses a clamping mechanism to press the vortex tube, which not only effectively prevents the vortex tube from shifting during sawing and ensures sawing accuracy, but also avoids scratches on the surface of the vortex tube, thus ensuring product quality.

[0060] Figure 6 As shown, the sawing method of this high-pressure gas cylinder inner liner strong rotary tube sawing device includes the following steps:

[0061] S1, Loading: Place the strong swivel tube 20 on the two support blocks 3 of the moving support mechanism, wherein the thickened section 201 of the strong swivel tube 20 cooperates with the support block 3, and the strong swivel tube is clamped and positioned by the clamping cylinder 5 and the positioning block 4.

[0062] S2, Distance Measurement: The forward and backward movement drive mechanism drives the moving support mechanism to move forward and backward, and the strong rotating tube 20 moves forward and backward accordingly. The distance measurement mechanism measures the distance from the surface of the strong rotating tube in real time and calculates the sawing position; after distance measurement, the moving platform 2 returns to its original position.

[0063] S3, Sawing: The forward and backward moving drive mechanism moves the strong rotating tube 20 through the moving support mechanism so that the sawing position at one end of the strong rotating tube 20 reaches below the sawing mechanism, and the sawing mechanism saws the strong rotating tube 20 according to the sawing position.

[0064] S4. Following step S3, complete the sawing of the other end of the strong vortex tube 20; after sawing, the moving platform 2 returns to its original position.

[0065] Example

[0066] Taking the aluminum inner liner of a 450L hydrogen cylinder as an example, this invention illustrates the device and its sawing method. The ranging device is a laser sensor.

[0067] 1) Adjust the position of the positioning block 4 and the two support blocks 3 on the moving platform 2 according to the length of the strong vortex tube 20 so that the strong vortex tube is supported and stressed in the thickened section 201; and input the nominal length of the strong vortex tube into the PLC system.

[0068] 2) Select manual control mode; activate the clamping cylinder 5 to push the powerful rotating tube 20 into contact with the positioning block 4; move the moving support mechanism forward until the middle of the first thickened section of the powerful rotating tube 20 is below the ranging device 8, and input this servo coordinate position (i.e., the starting coordinate of the ranging) into the PLC system (e.g., ...). Figure 7 As shown, this is denoted as point A. Adjust the position of the positioning pin 12 in the ranging mechanism according to the diameter, so that the distance from the ranging device 8 to the surface of the strong rotating tube is within the effective range of the ranging device 8. Continue moving the moving platform 2 to the middle position of the second thickened section of the strong rotating tube 20, and input this servo coordinate position (range endpoint coordinates) into the PLC system (denoted as point B). Then, the moving platform 2 returns to the zero point.

[0069] 3) Switch the control mode to automatic mode; the front and rear drive servo motors 6 work, driving the moving platform 2 forward to point A and stopping; after a 5-second delay, the distance measuring lifting cylinder 11 presses downward; after a 5-second delay, the front and rear drive servo motors 6 and the distance measuring device 8 work simultaneously, and the moving platform 2 moves forward to point B and stops. During the movement, the distance measuring device 8 measures the distance in real time. The PLC system identifies the coordinates of points C and D based on the measured distance data, calculates the length L of the middle section of the strong rotating tube (coordinates of point D minus coordinates of point C), and calculates the servo coordinates of the sawing positions E and F based on the length L0 of the strong rotating tube; PLC calculation formula: E=C-(L0-L) / 2, F=D+(L0-L) / 2. The ranging lifting cylinder 11 retracts upwards, and the ranging device 8 rises to a safe position; after a 5-second delay, the front and rear drive servo motors 6 operate, and the moving platform 2 retracts to the coordinate position of point E; after a 5-second delay, the front clamping mechanism is activated, the clamping cylinder 18 descends, and the moving clamping frame 19 clamps the strong rotating tube 20; after a 5-second delay, the top clamping cylinder 5 retracts; the saw blade 13 descends to cut the first end, and after cutting, the saw blade 13 rises to the highest point; after a 5-second delay, the front clamping cylinder 18 rises, releasing the strong rotating tube 20; after a 5-second delay, the front and rear drive servo motors 6 operate, and the moving platform 2 advances to the coordinate position of point F; after a 5-second delay, the rear clamping mechanism is activated, the clamping cylinder 18 descends, and clamps the strong rotating tube 20; the saw blade 13 descends to cut the second end, and after cutting, the saw blade 13 rises to the highest point; after a 5-second delay, the rear clamping cylinder 18 rises, releasing the strong rotating tube 20; after a 5-second delay, the front and rear drive servo motors 6 operate, and the moving platform 2 returns to the zero point.

[0070] The above-mentioned device and method of this utility model can be applied to the high-pressure spinning and thinning forming of high-pressure spinning tubes, especially for high-pressure spinning tubes with variable diameter irregular structures that are thick at both ends and thin in the middle, as well as high-pressure spinning tubes with bosses at the ends. It can effectively realize automated conveying and precise sawing, and has good adaptability to high-pressure spinning tubes of different lengths, diameters and wall thicknesses. It effectively solves the problems of difficulty in ensuring verticality and inability to automatically convey when ordinary sawing machines are sawing such special structure tubes.

[0071] The device and method of this invention, through reasonable support, positioning and conveying of the powerful rotating tube and precise positioning of the sawing position, can effectively ensure the perpendicularity of the sawing end face to the workpiece axis, thereby ensuring the quality of the gas cylinder's closing end, meeting the stringent requirements of high-pressure gas cylinders for the performance of the closing end, improving the overall quality and reliability of the product, and reducing the defect rate caused by sawing accuracy issues.

[0072] 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 exemplary 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.

[0073] 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 high-pressure gas cylinder liner strong rotary tube sawing device, characterized in that, include: A movable support mechanism is movably mounted on a base, and a powerful rotating tube is supported on the movable support mechanism. The movable support mechanism can move back and forth under the drive of a front and rear moving drive mechanism, so that the powerful rotating tube can move back and forth. A ranging mechanism, located above the high-speed rotating tube, is used to determine the sawing position based on the length of the high-speed rotating tube; A sawing mechanism is disposed above the high-speed rotating tube and is used to saw the high-speed rotating tube according to the sawing position.

2. The high-pressure gas cylinder liner strong rotary tube sawing device according to claim 1, characterized in that, The mobile support mechanism includes a mobile platform and two support blocks respectively disposed on the front and rear sides of the mobile platform; the mobile platform is connected to the front and rear moving drive mechanism, and the strong rotating tube is supported on the two support blocks.

3. The high-pressure gas cylinder liner strong rotary tube sawing device according to claim 2, characterized in that, The mobile support mechanism also includes a positioning block disposed at one end of the mobile platform and a clamping cylinder disposed at the other end of the mobile platform; the clamping cylinder cooperates with the positioning block to clamp and position the powerful rotating tube.

4. The high-pressure gas cylinder liner strong rotary tube sawing device according to claim 1, characterized in that, The sawing device also includes a clamping mechanism, which includes a clamping support frame, a clamping cylinder, and a movable clamping frame. The clamping cylinder is mounted on the clamping support frame, and the movable clamping frame is slidably fitted on the clamping support frame and connected to the clamping cylinder. The clamping cylinder drives the movable clamping frame to descend in order to clamp the rotary tube.

5. The high-pressure gas cylinder liner strong rotary tube sawing device according to claim 4, characterized in that, The clamping mechanism is provided in two sets, which are used to clamp the front and rear of the strong vortex tube respectively.

6. The high-pressure gas cylinder liner strong rotary tube sawing device according to claim 1, characterized in that, The ranging mechanism includes a ranging device and a ranging lifting mechanism that drives the ranging device to rise and fall.

7. The high-pressure gas cylinder liner strong rotary tube sawing device according to claim 6, characterized in that, The ranging device is a proximity sensor, laser sensor, photoelectric sensor, ultrasonic sensor, or industrial camera.

8. A high-pressure gas cylinder liner strong rotary tube sawing device according to claim 6, characterized in that, The ranging lifting mechanism includes a ranging support frame, a ranging lifting cylinder mounted on the ranging support frame, and a movable guide frame slidably fitted on the ranging support frame. The movable guide frame is connected to the ranging lifting cylinder, and the ranging device is mounted on the movable guide frame. The ranging lifting cylinder drives the movable guide frame to rise and fall, so as to raise and fall the ranging device.

9. A high-pressure gas cylinder inner liner strong rotary tube sawing device according to claim 1, characterized in that, The sawing mechanism includes a sawing lifting mechanism, a saw blade, and a saw blade rotating mechanism. The saw blade rotating mechanism is slidably mounted on the sawing support frame, and the saw blade is connected to the saw blade rotating mechanism. The sawing lifting mechanism drives the saw blade rotating mechanism to rise and fall, and the saw blade cuts the rotary tube according to the sawing position.