A large-volume steel seamless gas cylinder neck thread processing device

Abstract

The utility model discloses a large capacity steel seamless gas cylinder neck thread processing device, including base, the top one side symmetry fixed of base is equipped with two support column, and the upper end fixed of two support column is equipped with same support board, the first hydraulic cylinder is fixedly arranged on the support board, the piston rod end fixed of first hydraulic cylinder is equipped with mounting plate, the lower surface fixed of mounting plate is equipped with motor, and the output fixed of motor is equipped with thread tool, the lower surface elasticity of mounting plate is equipped with the protection cylinder, and the thread tool passes through setting inside protection cylinder. The utility model discloses through the cooperation of U -shaped guide rail and arc clamping plate, realizes gas cylinder vertical clamping and automatic centering, does not need manual repeated adjustment tool position, promotes thread processing precision, and the protection cylinder and smoke dust mechanism can block the flying scrap splashing and inhale smoke dust in time, guarantees the safe operation of personnel and processing environment clean, improves production efficiency, reduces processing loss and security risk.

Description

Technical Field

[0001] This utility model relates to the field of gas cylinder processing technology, specifically to a device for processing the neck thread of a large-capacity seamless steel gas cylinder. Background Technology

[0002] In the field of natural gas energy storage, large-capacity seamless steel gas cylinders are the core components of gas cylinders such as LNG (liquefied natural gas) and CNG (compressed natural gas). The machining accuracy of the bottleneck threads of these cylinders is directly related to their sealing performance and safety. In the existing technology, the thread machining of the bottleneck part of such gas cylinders is usually carried out by horizontally clamping and fixing the large-capacity seamless steel gas cylinder and then cutting it with a thread cutting tool.

[0003] However, this traditional processing method has significant drawbacks in practical applications: when dealing with large-capacity seamless steel gas cylinders of different diameters, aligning the threading tool with the cylinder opening is complex and difficult, often requiring repeated adjustments to the tool's position. Even after multiple adjustments, it is still difficult to avoid reduced threading accuracy due to misalignment, which in turn affects the tightness and sealing reliability of the cylinder threads and valve assembly, increasing the risk of leakage during natural gas storage. Furthermore, during threading, the cutting action of the tool on the steel easily generates a large amount of flying debris. This debris not only poses a threat to the safety of operators, such as causing skin abrasions or getting into the eyes, but also poses other safety risks.

[0004] To address this, a device for machining the neck threads of large-capacity seamless steel gas cylinders is proposed. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a device for machining the neck thread of a large-capacity seamless steel gas cylinder, so as to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution.

[0007] This utility model provides a device for machining the neck thread of a large-capacity seamless steel gas cylinder, including a base. Two support columns are symmetrically fixed on one side of the top of the base. The upper ends of the two support columns are fixed with the same support plate. A first hydraulic cylinder is fixed on the support plate. An mounting plate is fixed at the end of the piston rod of the first hydraulic cylinder. A motor is fixed on the lower surface of the mounting plate. A thread cutting tool is fixed at the output end of the motor.

[0008] The lower surface of the mounting plate is elastically provided with a protective cylinder, and the threaded cutter passes through and is disposed inside the protective cylinder;

[0009] The lower surface of the support plate is provided with a dust extraction mechanism, and the suction end of the dust extraction mechanism is connected to the protective cylinder.

[0010] A U-shaped guide rail is horizontally fixed on the top of the base and below the threaded cutter. Openings are provided on both sides of the middle part of the U-shaped guide rail, and clamping mechanisms are provided at the openings.

[0011] Preferably, both sides of the mounting plate are vertically slidably provided with sliding rods, the lower ends of the two sliding rods are fixedly connected to the top of the protective cylinder, and the rod walls of the two sliding rods are sleeved with springs, and the two ends of the springs are fixedly connected to the mounting plate and the protective cylinder respectively.

[0012] Preferably, the upper end of the slide bar is fixedly provided with an anti-fall-off block.

[0013] Preferably, the smoke extraction mechanism includes a smoke extraction machine fixedly disposed on the lower surface of the support plate, wherein the inlet of the smoke extraction machine is fixedly provided with a smoke extraction pipe and a protective sleeve, and the end of the smoke extraction pipe away from the smoke extraction machine is fixedly connected to the smoke extraction hole.

[0014] Preferably, the smoking tube is made of soft, high-temperature resistant rubber.

[0015] Preferably, a through hole is provided at the center of the top of the protective cylinder, and the wall of the threaded cutter passes through the interior of the through hole.

[0016] Preferably, the clamping mechanism includes a fixed seat fixedly disposed on the top of the base, a second hydraulic cylinder fixedly disposed on the fixed seat, and an arc-shaped clamping plate extending into the interior of the U-shaped guide rail fixedly disposed at the end of the piston rod of the second hydraulic cylinder.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. By cooperating with the U-shaped guide rail and clamping mechanism, the gas cylinder is placed vertically in the U-shaped guide rail and pushed into the clamping area. After the second hydraulic cylinder is activated, its piston rod pushes the arc-shaped clamping plate to move along the arc-shaped surface of the outer wall of the gas cylinder. The arc-shaped guiding action automatically corrects the position of the gas cylinder, so that the center of the cylinder mouth is precisely aligned with the axis of the thread cutter above. The first hydraulic cylinder drives the mounting plate to move the thread cutter up and down to adjust the processing position. After the motor is started, the cutter rotates to cut, realizing the neck thread processing. This vertical clamping method eliminates the need for manual repeated adjustment of the position of the cutter and the gas cylinder, significantly improving the accuracy and efficiency of thread processing.

[0019] 2. The protective cylinder automatically covers the gas cylinder opening as the threaded cutter moves down, forming a closed space to prevent flying debris from splashing outwards. At the same time, the fumigation machine connects to the fumigation hole on the side wall of the protective cylinder through the fumigation pipe, which promptly sucks in and treats the flying debris and dust generated during cutting inside the protective cylinder. This not only prevents flying debris from scratching the operators, but also purifies the processing environment, ensuring production safety and cleanliness. Attached Figure Description

[0020] Figure 1 This is a first-person perspective view of the present invention.

[0021] Figure 2 This is a perspective view of the present invention from a second perspective;

[0022] Figure 3 This is a first-view perspective perspective view of the components on the support plate of this utility model;

[0023] Figure 4 This is a perspective view of the components on the support plate of this utility model from a second angle.

[0024] In the diagram: 1. Base; 2. Support column; 3. Support plate; 4. First hydraulic cylinder; 5. Mounting plate; 6. Motor; 7. Thread cutter; 8. Protective cylinder; 9. U-shaped guide rail; 10. Slide rod; 11. Spring; 12. Anti-falling block; 13. Smoke machine; 14. Smoke pipe; 15. Smoke hole; 16. Fixed seat; 17. Second hydraulic cylinder; 18. Arc-shaped clamp. Detailed Implementation

[0025] A device for machining the neck threads of large-capacity seamless steel gas cylinders, such as... Figure 1-4 As shown, the system includes a base 1, with two support columns 2 symmetrically fixed on one side of the top of the base 1. The upper ends of the two support columns 2 are fixed with the same support plate 3. A first hydraulic cylinder 4 is fixed on the support plate 3. An mounting plate 5 is fixed to the end of the piston rod of the first hydraulic cylinder 4. A motor 6 is fixed to the lower surface of the mounting plate 5. A thread cutter 7 is fixed to the output end of the motor 6. The first hydraulic cylinder 4 extends and can drive the motor 6 and the thread cutter 7 upward, so that the thread cutter 7 contacts the mouth of the gas cylinder. At the same time, the motor 6 can drive the thread cutter 7 to rotate and complete the threading of the neck of the gas cylinder.

[0026] The lower surface of the mounting plate 5 is elastically provided with a protective cylinder 8. Both sides of the mounting plate 5 are vertically slidably provided with sliding rods 10. The lower ends of the two sliding rods 10 are fixedly connected to the top of the protective cylinder 8. The walls of the two sliding rods 10 are fitted with springs 11, and the two ends of the springs 11 are fixedly connected to the mounting plate 5 and the protective cylinder 8 respectively. The upper end of the sliding rod 10 is fixedly provided with an anti-falling stop block 12. When it is necessary to maintain the thread cutter 7, push the protective cylinder 8 upward to move the sliding rod 10 upward and compress the spring 11. At this time, the thread cutter 7 will be exposed from the inside of the protective cylinder 8. The thread cutter 7 passes through the inside of the protective cylinder 8. A through hole is opened at the center of the top of the protective cylinder 8, and the blade wall of the thread cutter 7 passes through the inside of the through hole.

[0027] The lower surface of the support plate 3 is provided with a dust extraction mechanism, and the suction end of the dust extraction mechanism is connected to the protective cylinder 8. The dust extraction mechanism includes a dust extraction machine 13 fixedly installed on the lower surface of the support plate 3. The suction port of the dust extraction machine 13 is fixedly provided with a dust extraction pipe 14, and the side wall of the protective cylinder 8 is provided with a dust extraction hole 15. The end of the dust extraction pipe 14 away from the dust extraction machine 13 is fixedly connected to the dust extraction hole 15. The dust extraction pipe 14 is made of soft high-temperature resistant rubber tube. When the protective cylinder 8 moves, the soft high-temperature resistant rubber tube will bend, which can ensure that the dust extraction machine 13 continuously extracts dust.

[0028] A U-shaped guide rail 9 is horizontally fixed at the top of the base 1 and below the thread cutter 7. The U-shaped guide rail 9 has openings on both sides of the middle section, and a clamping mechanism is provided at the opening. The clamping mechanism includes a fixed seat 16 fixedly installed at the top of the base 1. A second hydraulic cylinder 17 is fixedly installed on the fixed seat 16. An arc-shaped clamping plate 18 (or a V-shaped clamping plate) extending into the U-shaped guide rail 9 is fixedly installed at the end of the piston rod of the second hydraulic cylinder 17. When the second hydraulic cylinder 17 is activated, its piston rod pushes the arc-shaped clamping plate 18 to move towards the gas cylinder. Since the arc-shaped surface of the arc-shaped clamping plate 18 fits against the outer wall of the gas cylinder and completes the clamping, in order to prevent the two second hydraulic cylinders 17 from not extending synchronously, the extension distance of the two second hydraulic cylinders 17 can be made consistent through precise flow control (such as a flow divider or proportional valve) and closed-loop feedback of displacement sensors (such as a magnetostrictive sensor + servo valve), thereby ensuring that the two arc-shaped clamping plates 18 accurately position the gas cylinder.

[0029] In summary: The operator first places the gas cylinder vertically inside the U-shaped guide rail 9, and pushes the gas cylinder into the clamping mechanism area along the transverse track of the U-shaped guide rail 9. Multiple gas cylinders are placed side by side inside the U-shaped guide rail 9, which can realize continuous feeding of gas cylinders. At this time, the second hydraulic cylinder 17 on the fixed seat 16 is activated, and its piston rod pushes the arc-shaped clamping plate 18 to move towards the gas cylinder. Since the arc-shaped surface of the arc-shaped clamping plate 18 is in contact with the outer wall of the gas cylinder, the position of the gas cylinder is automatically corrected through the arc-shaped guiding effect during the clamping process, so that the center of the gas cylinder mouth is precisely aligned with the axis of the thread cutter 7 above, without the need for manual repeated adjustment of the position of the gas cylinder and the thread cutter 7.

[0030] After clamping and positioning are completed, the first hydraulic cylinder 4 is activated, which drives the mounting plate 5 to move downward, bringing the thread cutter 7 closer to the bottle mouth. At the same time, the protective cylinder 8 is elastically connected by the slide rod 10 and the spring 11, and moves down synchronously with the mounting plate 5 and automatically fits around the bottle mouth. During this process, the protective cylinder 8 does not contact the bottle mouth. When the motor 6 is started to drive the thread cutter 7 to rotate for thread cutting, the protective cylinder 8 forms a protective space to block the flying chips generated by cutting inside, preventing the flying chips from splashing outward and injuring the operator.

[0031] At the same time, the fumigation machine 13 is started, and the fumigation pipe 14 is connected to the fumigation hole 15 on the side wall of the protective cylinder 8 to suck up the smoke and dust in the protective cylinder 8 in a timely manner to ensure the safety of the processing environment. Throughout the process, the U-shaped guide rail 9 and the arc-shaped clamping plate 18 of the clamping mechanism cooperate to realize the vertical clamping and automatic centering of the gas cylinder (during the clamping process of the gas cylinder, the arc-shaped clamping plates 18 on both sides automatically center the gas cylinder through the inner arc of the arc-shaped clamping plate 18, thereby automatically achieving centering with the thread cutting tool 7. When clamping gas cylinders of different diameters, automatic centering can also be achieved because the size of the arc-shaped clamping plate 18 is large enough). The protective cylinder 8 and the fumigation mechanism work together to control flying chips and smoke, effectively solving the problems of centering difficulties and the hazards of flying chips and smoke in traditional processing.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for machining the neck thread of a large-capacity seamless steel gas cylinder, comprising a base (1), characterized in that: Two support columns (2) are symmetrically fixed on one side of the top of the base (1). The upper ends of the two support columns (2) are fixed with the same support plate (3). A first hydraulic cylinder (4) is fixed on the support plate (3). An installation plate (5) is fixed at the end of the piston rod of the first hydraulic cylinder (4). A motor (6) is fixed on the lower surface of the installation plate (5). A thread cutter (7) is fixed at the output end of the motor (6). The lower surface of the mounting plate (5) is elastically provided with a protective cylinder (8), and the thread cutter (7) passes through the interior of the protective cylinder (8); The lower surface of the support plate (3) is provided with a dust extraction mechanism, and the suction end of the dust extraction mechanism is connected to the protective cylinder (8); A U-shaped guide rail (9) is horizontally fixed on the top of the base (1) and below the thread cutter (7). The U-shaped guide rail (9) has openings on both sides of the middle part, and a clamping mechanism is provided at the opening.

2. The device for machining the neck thread of a large-capacity seamless steel gas cylinder according to claim 1, characterized in that: Both sides of the mounting plate (5) are vertically slidably provided with sliding rods (10). The lower ends of the two sliding rods (10) are fixedly connected to the top of the protective cylinder (8). The walls of the two sliding rods (10) are fitted with springs (11), and the two ends of the springs (11) are fixedly connected to the mounting plate (5) and the protective cylinder (8) respectively.

3. The device for machining the neck thread of a large-capacity seamless steel gas cylinder according to claim 2, characterized in that: The upper end of the slide bar (10) is fixedly provided with an anti-fall-off block (12).

4. The device for machining the neck thread of a large-capacity seamless steel gas cylinder according to claim 1, characterized in that: The smoke extraction mechanism includes a smoke extractor (13) fixedly installed on the lower surface of the support plate (3). The smoke extractor (13) has a smoke extraction pipe (14) fixedly installed at its inlet, and a smoke extraction hole (15) is opened on the side wall of the protective cylinder (8). The end of the smoke extraction pipe (14) away from the smoke extractor (13) is fixedly connected to the smoke extraction hole (15).

5. The device for machining the neck thread of a large-capacity seamless steel gas cylinder according to claim 4, characterized in that: The smoking tube (14) is made of soft, high-temperature resistant rubber.

6. The device for machining the neck thread of a large-capacity seamless steel gas cylinder according to claim 1, characterized in that: The protective cylinder (8) has a through hole at the top center, and the wall of the thread cutter (7) passes through the inside of the through hole.

7. The device for machining the neck thread of a large-capacity seamless steel gas cylinder according to claim 1, characterized in that: The clamping mechanism includes a fixed seat (16) fixedly disposed on the top of the base (1), and a second hydraulic cylinder (17) fixedly disposed on the fixed seat (16). An arc-shaped clamping plate (18) extending into the U-shaped guide rail (9) is fixedly disposed at the end of the piston rod of the second hydraulic cylinder (17).

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