Supporting short pipe positioning tool for gas cylinder

Abstract

The invention relates to the technical field of gas cylinder processing, in particular to a supporting short pipe positioning tool for a gas cylinder, which comprises a base, a side plate fixedly connected to one side wall of the base, a top plate fixedly connected to the top of the side plate, a first cylinder fixedly connected to the lower surface of the top plate, and a lower pressing plate fixedly connected to the bottom of the first cylinder. A first metal rod is fixedly connected to the upper surface of the lower pressing plate, a first metal ring is fixedly connected to the upper surface of the top plate, a fixing plate is fixedly connected to the other side wall of the base, a moving groove is formed in the fixing plate, a moving frame is movably installed in the moving groove, and a motor is fixedly connected to the outer surface of the fixing plate; the output end of the motor is fixedly connected with a lead screw, the moving frame is installed on the lead screw, the bottom of the fixing plate is fixedly connected with a second metal rod, and the surface of the moving frame is fixedly connected with a second metal ring. The invention provides tooling equipment capable of positioning during welding of the gas cylinder supporting short pipe.

Description

Technical Field

[0001] This invention relates to the field of gas cylinder processing, and in particular to a positioning fixture for a short support tube for gas cylinders. Background Technology

[0002] The support pipe of the gas cylinder is the core force-bearing and positioning structure connecting the gas cylinder body with external components (such as pipelines, positioning fixtures, and mounting brackets). Its main functions are to fix the position of the short pipe, transfer loads, and ensure sealing (for media conveying short pipes). Its structure needs to be designed in combination with the type of gas cylinder (low temperature, high pressure, vehicle use) and the function of the short pipe (positioning, media conveying, load bearing). The core consists of three parts: the connecting section, the main body section, and the reinforcing section.

[0003] The gas cylinder support tube positioning fixture is a device used to accurately position the support tube on the gas cylinder to ensure that the support tube is installed in the correct position on the gas cylinder, thus ensuring the stability and safety of the gas cylinder.

[0004] When welding the support tube for gas cylinders, it is necessary to determine the position of the support tube so that it can be accurately welded in the predetermined position, avoiding errors during welding that could lead to misalignment of the support tube. Summary of the Invention

[0005] In view of this, the present invention provides a positioning fixture for a gas cylinder support short tube. The main technical problem to be solved is to provide a fixture that can be positioned during the welding of the gas cylinder support short tube.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a positioning fixture for a gas cylinder support short tube, comprising a base, a side plate fixedly connected to one side wall of the base, a top plate fixedly connected to the top of the side plate, a first cylinder fixedly connected to the lower surface of the top plate, a lower pressure plate fixedly connected to the bottom of the first cylinder, a first metal rod fixedly connected to the upper surface of the lower pressure plate, the end of the first metal rod away from the lower pressure plate extending above the top plate, a first metal ring fixedly connected to the upper surface of the top plate, the inner surface of the first metal ring fitting against the outer surface of the first metal rod, and a first detector fixedly connected to the upper surface of the top plate, the first detector being connected to the top of the first metal rod via a wire. The base is connected to a first metal ring. A fixed plate is fixedly connected to the other side wall of the base. A movable groove is opened inside the fixed plate. A movable frame is movably installed inside the movable groove. A motor is fixedly connected to the outer surface of the fixed plate. A lead screw is fixedly connected to the output end of the motor. The movable frame is installed on the lead screw. A second metal rod is fixedly connected to the bottom of the fixed plate. A second metal ring is fixedly connected to the surface of the movable frame. The top of the second metal rod passes through the second metal ring. The outer surface of the second metal rod is in contact with the inner surface of the second metal ring. A second detector is fixedly connected to the upper surface of the movable frame. The second detector is connected to the top of the second metal rod and the second metal ring through a wire.

[0007] By adopting the above technical solution, during use, first open the door, send the gas cylinder to be processed into the placement slot on the base, and place the support short tube into the limiting slot on the moving frame. At this time, the welding part of the support short tube and the gas cylinder is outside the moving frame, waiting to be welded to the gas cylinder, while the part that does not need to be welded is inside the moving frame, which serves to fix the support short tube. Then close the door, start the second cylinder to control the limiting frame to move towards the side plate, push the gas cylinder, so that the tail of the gas cylinder can be tightly attached to the surface of the door. Then start the first cylinder to control the lower pressure plate to move downward, and fix the gas cylinder by the lower pressure plate to achieve the effect of determining the position of the gas cylinder. During the downward movement of the lower pressure plate, the first metal rod will move downward. At this time, the length between the top of the first metal rod and the first metal ring will change, and the current will flow through the top of the first metal rod and the... The resistance of the first metal ring changes. By detecting the changes in current and voltage between the top of the first metal rod and the first metal ring using the first detector, the moving distance of the first metal rod can be determined. Then, the motor is started to control the lead screw to rotate, causing the moving frame on the lead screw to move up and down. When the moving frame moves up and down, the length between the top of the second metal rod and the second metal ring changes, causing the resistance between the top of the second metal rod and the second metal ring to change. By detecting the changes in current and voltage between the top of the second metal rod and the second metal ring using the second detector, and combining the data detected by the first detector, the working state of the motor can be accurately controlled, thereby controlling the moving length of the moving frame. This ensures that the support short tube placed on the moving frame can be precisely aligned with the welding joint on the gas cylinder, achieving the effect of welding and positioning the support short tube.

[0008] As a further description of the above technical solution:

[0009] The upper surface of the base is provided with a placement groove, and the lower surface of the pressure plate is provided with an arc-shaped groove, the position of which corresponds to the position of the placement groove.

[0010] By adopting the above technical solution, the gas cylinder can be placed stably in the placement slot.

[0011] As a further description of the above technical solution:

[0012] A guide post is fixedly connected to the top of the lower pressure plate, and the top of the guide post is installed on the lower surface of the top plate.

[0013] By adopting the above technical solution, the guide column can stabilize the up-and-down movement of the lower pressure plate and prevent the lower pressure plate from deflecting during the up-and-down movement.

[0014] As a further description of the above technical solution:

[0015] A spring is fixedly connected inside the movable frame, and a push plate is movably connected inside the movable frame. The end of the spring is fixedly connected to the outer surface of the push plate.

[0016] By adopting the above technical solution, the spring and push plate, together with the limiting groove, can limit and fix the supporting short pipe.

[0017] As a further description of the above technical solution:

[0018] The side wall of the mobile frame has a limiting groove.

[0019] By adopting the above technical solution, it is easy to place the support short tube inside the mobile frame.

[0020] As a further description of the above technical solution:

[0021] A second cylinder is fixedly connected to the inner surface of the fixed plate, and a limit frame is fixedly connected to the end of the second cylinder away from the fixed plate.

[0022] By adopting the above technical solution, the movement of the limit frame can be controlled by the second cylinder, thereby pushing the gas cylinder so that the tail of the gas cylinder can be tightly attached to the door, which facilitates the fixing and positioning of the gas cylinder.

[0023] As a further description of the above technical solution:

[0024] The side panel is internally connected to a door, and a latch is provided between the door and the side panel.

[0025] By adopting the above technical solution, the gas cylinder can be installed and removed by opening the latch and opening the door. When the door is closed and the latch is locked, the limit frame can push the gas cylinder to move towards the door to fix and position the gas cylinder.

[0026] By employing the above technical solution, the gas cylinder support short tube positioning fixture of the present invention has at least the following beneficial effects:

[0027] 1. Compared with the prior art, the positioning fixture for the support short tube of the gas cylinder can accurately align the position of the support short tube and the gas cylinder through the cooperation of the first cylinder, the lower pressure plate, the first metal rod, the first metal ring, the first detector, the motor, the lead screw, the moving frame, the second metal rod, the second metal ring and the second detector, thereby improving the accuracy of the welding positioning of the support short tube and ensuring that the welding joint on the support short tube and the gas cylinder are accurately aligned. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure from a first-view perspective proposed in this invention;

[0029] Figure 2 This is a schematic diagram of the overall structure from the second perspective proposed in this invention;

[0030] Figure 3 This is a first-view sectional view of the internal structure proposed in this invention;

[0031] Figure 4 This is a cross-sectional view of the internal structure from the second perspective proposed in this invention;

[0032] Figure 5 This is a third-view sectional view of the internal structure proposed in this invention;

[0033] Figure 6 This is a schematic diagram of the overall structure of the invention during use.

[0034] Legend:

[0035] 1. Base; 2. Placement slot; 3. Side plate; 4. Top plate; 5. First cylinder; 6. Lower pressure plate; 7. Arc groove; 8. Guide column; 9. First metal rod; 10. First metal ring; 11. First detector; 12. Fixing plate; 13. Motor; 14. Lead screw; 15. Moving frame; 16. Second metal rod; 17. Second metal ring; 18. Second detector; 19. Spring; 20. Push plate; 21. Limiting groove; 22. Moving groove; 23. Second cylinder; 24. Limiting frame; 25. Door body. Detailed Implementation

[0036] Reference Figure 1-6This invention provides a positioning fixture for a gas cylinder support tube: It includes a base 1, a side plate 3 fixedly connected to one side wall of the base 1, a top plate 4 fixedly connected to the top of the side plate 3, a first cylinder 5 fixedly connected to the lower surface of the top plate 4, a lower pressure plate 6 fixedly connected to the bottom of the first cylinder 5, a first metal rod 9 fixedly connected to the upper surface of the lower pressure plate 6, the end of the first metal rod 9 away from the lower pressure plate 6 extending above the top plate 4, a first metal ring 10 fixedly connected to the upper surface of the top plate 4, the inner surface of the first metal ring 10 fitting against the outer surface of the first metal rod 9, a first detector 11 fixedly connected to the upper surface of the top plate 4, and the first detector 11 connected to the top of the first metal rod 9 and the first metal ring 10 via wires. The other side of the base 1... A fixed plate 12 is fixedly connected to one side wall. A movable slot 22 is formed inside the fixed plate 12, and a movable frame 15 is movably installed inside the movable slot 22. A motor 13 is fixedly connected to the outer surface of the fixed plate 12. The motor 13 is a servo motor, and its start and stop can be precisely controlled by a PLC program. A lead screw 14 is fixedly connected to the output end of the motor 13, and the movable frame 15 is mounted on the lead screw 14. A second metal rod 16 is fixedly connected to the bottom of the fixed plate 12. A second metal ring 17 is fixedly connected to the surface of the movable frame 15. The top of the second metal rod 16 passes through the second metal ring 17, and the outer surface of the second metal rod 16 is in contact with the inner surface of the second metal ring 17. A second detector 1 is fixedly connected to the upper surface of the movable frame 15. 8. The second detector 18 is connected to the top of the second metal rod 16 and the second metal ring 17 via wires. The first detector 11 and the second detector 18 include components such as voltmeters, ammeters, power supplies, PCB boards, and data interfaces. They can detect the current and voltage in their respective circuits and transmit the current and voltage data to the computer for analysis, thereby controlling the working state of the motor 13. In use, first open the door 25, send the gas cylinder to be processed into the placement slot 2 on the base 1, and put the support short tube into the limiting slot 21 on the moving frame 15. At this time, the welding part of the support short tube and the gas cylinder is located outside the moving frame 15, waiting to be welded to the gas cylinder. The part that does not need to be welded is located inside the moving frame 15 to support the support short tube. After securing the cylinder, the door 25 is closed, and the second cylinder 23 is activated to move the limit bracket 24 towards the side plate 3, pushing the gas cylinder so that its tail is flush with the surface of the door 25. Then, the first cylinder 5 is activated to move the lower pressure plate 6 downwards, securing the gas cylinder and determining its position. Since different gas cylinders have different diameters, the lower pressure plate 6 moves the first metal rod 9 downwards. During this downward movement, the length between the top of the first metal rod 9 and the first metal ring 10 changes, causing a change in the resistance of the current flowing through this area. The longer the lower pressure plate 6 moves downwards, the smaller the resistance, and the greater the current detected by the first detector 11.By detecting the changes in current and voltage between the top of the first metal rod 9 and the first metal ring 10 using the first detector 11, the moving distance of the first metal rod 9 can be determined as L1 = V1 / R1I1 (where L1 is the length between the top of the first metal rod 9 and the first metal ring 10, V1 is the internal power supply voltage of the first detector 11, R1 is the resistance per unit length of the first metal rod 9, and I1 is the magnitude of the current passing through the length between the top of the first metal rod 9 and the first metal ring 10). Then, the motor 13 is started to control the lead screw 14 to rotate, causing the moving frame 15 on the lead screw 14 to move up and down. When the moving frame 15 moves up and down, the length between the top of the second metal rod 16 and the second metal ring 17 changes, causing a change in the resistance between the top of the second metal rod 16 and the second metal ring 17. The further down the moving frame 15 moves, the greater the resistance, and the smaller the current detected by the second detector 18. The moving distance, L2 = V2 / R2I2 = n(V1 / R1I1), (where L2 is the length between the top of the second metal rod 16 and the second metal ring 17, V2 is the internal power supply voltage of the second detector 18, R2 is the resistance per unit length of the second metal rod 16, I2 is the current through the length between the top of the second metal rod 16 and the second metal ring 17, and n is the ratio coefficient between the length of the first metal rod 9 and the length of the second metal rod 16), can be obtained as I2 = (V2R1I1) / n(R2V1). By detecting the changes in current and voltage between the top of the second metal rod 16 and the second metal ring 17 through the second detector 18, and combining the data detected by the first detector 11, the working state of the motor 13 can be accurately controlled, thereby controlling the moving length of the moving frame 15, so that the support short tube placed on the moving frame 15 can be precisely aligned with the welding port on the gas cylinder, achieving the effect of welding and positioning the support short tube.

[0037] The upper surface of the base 1 is provided with a placement groove 2, and the lower surface of the pressure plate 6 is provided with an arc-shaped groove 7. The position of the arc-shaped groove 7 corresponds to the position of the placement groove 2, so that the gas cylinder can be stably placed in the placement groove 2.

[0038] A guide post 8 is fixedly connected to the top of the lower pressure plate 6. The top of the guide post 8 is installed on the lower surface of the top plate 4. The guide post 8 can stabilize the up and down movement of the lower pressure plate 6 and prevent the lower pressure plate 6 from deflecting during the up and down movement.

[0039] A spring 19 is fixedly connected inside the movable frame 15, and a push plate 20 is movably connected inside the movable frame 15. The end of the spring 19 is fixedly connected to the outer surface of the push plate 20. The spring 19 and the push plate 20 cooperate with the limiting groove 21 to limit and fix the supporting short tube. The side wall of the movable frame 15 is provided with a limiting groove 21 to facilitate the placement of the supporting short tube inside the movable frame 15.

[0040] A second cylinder 23 is fixedly connected to the inner surface of the fixing plate 12. A limit frame 24 is fixedly connected to the end of the second cylinder 23 away from the fixing plate 12. The second cylinder 23 can control the movement of the limit frame 24, thereby pushing the gas cylinder so that the tail of the gas cylinder can be tightly attached to the door 25, which is convenient for fixing and positioning the gas cylinder.

[0041] The side panel 3 is internally connected to a door 25. A latch is provided between the door 25 and the side panel 3. The latch controls the opening and closing of the door 25. Opening the latch allows the door 25 to be opened for the installation and removal of the gas cylinder. Closing the door and locking the latch allows the limit frame 24 to push the gas cylinder towards the door 25 for fixing and positioning.

[0042] Working Principle: When positioning the gas cylinder for welding the supporting short tube, first open the door on the side panel and place the gas cylinder in the placement slot of the base, ensuring stable placement. Then, place the supporting short tube into the limiting slot on the side wall of the moving frame. At this point, the welding area between the supporting short tube and the gas cylinder is outside the moving frame, facilitating subsequent welding operations, while the areas not requiring welding are inside the moving frame, providing initial fixation for the supporting short tube. Next, close the door and lock the latch. Activate the second cylinder, which pushes the limiting frame towards the side panel. The limiting frame contacts the gas cylinder and pushes it, ensuring the tail of the gas cylinder fits tightly against the door surface, completing the initial horizontal positioning of the gas cylinder. Then, activate the first cylinder, which moves the lower pressure plate downwards. The arc-shaped groove on the lower surface of the lower pressure plate contacts the gas cylinder surface, vertically fixing the gas cylinder and further confirming its position. As the lower pressure plate moves downward, the first metal rod fixed to it also moves downward. The length between the top of the first metal rod and the first metal ring on the top plate changes, causing a change in the resistance between the top of the first metal rod and the first metal ring. The first detector detects this change in current and voltage and calculates the moving distance of the first metal rod according to a preset formula, thus determining the moving distance of the lower pressure plate and the vertical position of the gas cylinder. Then, the motor is started, driving the lead screw to rotate, and the moving frame on the lead screw begins to move up and down. During the movement of the moving frame, the length between the second metal rod fixed to the bottom of the fixed plate and the second metal ring on the moving frame changes, and the resistance between the top of the second metal rod and the second metal ring changes accordingly. The second detector detects these changes and, combined with the data detected by the first detector, accurately controls the motor's operating state through a preset program, thereby precisely controlling the moving length of the moving frame. This ensures that the support short tube placed on the moving frame is precisely aligned with the welding joint on the gas cylinder, ultimately achieving the welding positioning of the support short tube and providing precise positional assurance for subsequent welding work.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A support short pipe positioning tool for gas cylinders, comprising a base (1), characterized in that: The side wall of the base (1) is fixedly connected with a side plate (3), the top of the side plate (3) is fixedly connected with a top plate (4), the lower surface of the top plate (4) is fixedly connected with a first air cylinder (5), the bottom of the first air cylinder (5) is fixedly connected with a lower pressing plate (6), the upper surface of the lower pressing plate (6) is fixedly connected with a first metal rod (9), the end, away from the lower pressing plate (6), of the first metal rod (9) extends above the top plate (4), the upper surface of the top plate (4) is fixedly connected with a first metal ring (10), the inner surface of the first metal ring (10) is attached to the outer surface of the first metal rod (9), the upper surface of the top plate (4) is fixedly connected with a first detector (11), the first detector (11) is connected with the top of the first metal rod (9) and the first metal ring (10) through wires, the other side wall of the base (1) is fixedly connected with a fixed plate (12), the inside of the fixed plate (12) is provided with a moving groove (22), the inside of the moving groove (22) is movably installed with a moving frame (15), the outer surface of the fixed plate (12) is fixedly connected with a motor (13), the output end of the motor (13) is fixedly connected with a lead screw (14), the moving frame (15) is installed on the lead screw (14), the bottom of the fixed plate (12) is fixedly connected with a second metal rod (16), the surface of the moving frame (15) is fixedly connected with a second metal ring (17), the top of the second metal rod (16) penetrates through the second metal ring (17), the outer surface of the second metal rod (16) is attached to the inner surface of the second metal ring (17), the upper surface of the moving frame (15) is fixedly connected with a second detector (18), the second detector (18) is connected with the top of the second metal rod (16) and the second metal ring (17) through wires.

2. The support pipe positioning tool for a gas cylinder according to claim 1, characterized in that: The upper surface of the base (1) is provided with a placing groove (2), the lower surface of the lower pressing plate (6) is provided with an arc-shaped groove (7), the position of the arc-shaped groove (7) corresponds to the position of the placing groove (2).

3. The support pipe positioning tool for a gas cylinder according to claim 1, characterized in that: The top of the lower pressing plate (6) is fixedly connected with a guide column (8), the top of the guide column (8) is installed on the lower surface of the top plate (4).

4. The support pipe positioning tool for a gas cylinder according to claim 1, characterized in that: The inside of the moving frame (15) is fixedly connected with a spring (19), the inside of the moving frame (15) is movably connected with a push plate (20), the end of the spring (19) is fixedly connected with the outer surface of the push plate (20).

5. The support pipe positioning tool for a gas cylinder according to claim 1, characterized in that: The side wall of the moving frame (15) is provided with a limiting groove (21).

6. The support pipe positioning tool for a gas cylinder according to claim 1, characterized in that: The inner surface of the fixed plate (12) is fixedly connected with a second air cylinder (23), one end, away from the fixed plate (12), of the second air cylinder (23) is fixedly connected with a limiting frame (24).

7. The support pipe positioning tool for a gas cylinder according to claim 1, characterized in that: The inside of the side plate (3) is movably connected with a door body (25), a lock catch is arranged between the door body (25) and the side plate (3).

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