Quick assembling clamp for CNG vehicle-mounted gas cylinder

Abstract

The utility model discloses a CNG vehicle-mounted gas cylinder quick assembly clamp relates to gas cylinder assembly technical field, and its technical key points include base, the base upper end face is fixedly installed with prism slide through moving groove, the prism slide outer wall slidingly installed with two sliding blocks, two the sliding block upper end face all are fixedly installed with fixed frame, two the fixed frame inner bottom wall all are fixedly installed with lower clamping plate through support mechanism, two the fixed frame upper end face all are rotatably installed with screw rod through lifting frame, two the lifting frame upper end face respectively fixedly installed with the motor of same side screw rod connection, the utility model discloses a cylinder drive sliding block along the prism slide, can adjust the interval between two clamping assemblies flexibly, to adapt to the CNG vehicle-mounted gas cylinder of different length, simultaneously, the motor drive screw rod drives upper clamping plate to go up and down, can adjust the distance between upper and lower clamping plate, adapts the gas cylinder of different diameter, need not to replace the fixture main body, greatly improved the versatility of clamp.

Description

Technical Field

[0001] This utility model relates to the field of gas cylinder assembly technology, specifically a CNG vehicle-mounted gas cylinder quick assembly fixture. Background Technology

[0002] CNG (Compressed Natural Gas) vehicle cylinders are high-pressure containers used to store compressed natural gas, and their core function is to provide fuel storage for natural gas vehicles.

[0003] In the production and manufacturing process of CNG vehicles, the assembly of CNG vehicle-mounted gas cylinders is one of the key processes. The positioning and clamping effect during cylinder assembly directly affects the assembly accuracy, efficiency, and subsequent safety. Currently, the fixtures used for CNG vehicle-mounted gas cylinder assembly on the market have poor adaptability. Traditional fixtures are mostly fixed structures that can only clamp cylinders of a single specification. When it is necessary to assemble CNG vehicle-mounted gas cylinders of different lengths and diameters, the entire set of fixtures must be replaced, which not only increases equipment costs but also consumes a lot of changeover time, seriously affecting production efficiency and lacking practicality. Therefore, it is necessary to redesign a rapid assembly fixture for CNG vehicle-mounted gas cylinders to address the above problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a quick assembly fixture for CNG vehicle-mounted gas cylinders. This solves the problem of poor adaptability of fixtures used for CNG vehicle-mounted gas cylinder assembly on the market. Traditional fixtures are mostly fixed structures and can only clamp gas cylinders of a single specification. When it is necessary to assemble CNG vehicle-mounted gas cylinders of different lengths and diameters, the entire set of fixtures must be replaced, which not only increases equipment costs but also consumes a lot of changeover time, seriously affecting production efficiency.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A CNG vehicle-mounted gas cylinder quick assembly fixture includes a base. A prismatic slide rod is fixedly installed on the upper surface of the base via a movable groove. Two sliders are slidably installed on the outer wall of the prismatic slide rod. A fixed frame is fixedly installed on the upper surface of each slider. A lower clamping plate is fixedly installed on the bottom wall of each fixed frame via a support mechanism. A screw is rotatably installed on the upper surface of each fixed frame via a lifting frame. A motor connected to the screw on the same side is fixedly installed on the upper surface of each lifting frame. A limit rod is fixedly installed inside each lifting frame. A movable plate is threaded onto the outer wall of each screw. The two limit rods slide through the movable plate on the same side. An upper clamping plate is fixedly installed on the bottom wall of each movable plate via a connecting mechanism. A fixed plate is fixedly installed on the upper surface of the base. Connecting blocks are fixedly installed on both sides of the fixed plate via a telescopic mechanism. The outer walls of the two connecting blocks are fixedly connected to the outer walls of the sliders on the same side via connecting rods.

[0009] Preferably, the support mechanism includes a support rod fixedly installed on the bottom wall of the fixed frame, and the end of the support rod is fixedly connected to the outer wall of the lower clamping plate.

[0010] Preferably, the connecting mechanism includes two connecting rods fixedly installed on the bottom wall of the movable plate, and the ends of the two connecting rods are fixedly connected to the outer wall of the upper clamping plate.

[0011] Preferably, the telescopic mechanism includes cylinders fixedly installed on both sides of the fixed plate, and the telescopic ends of the two cylinders are respectively fixedly connected to the outer wall of the connecting block on the same side.

[0012] Preferably, a first anti-slip pad is fixedly installed on the inner wall of both lower clamping plates, and a second anti-slip pad is fixedly installed on the inner wall of both upper clamping plates. Both the first and second anti-slip pads are made of rubber.

[0013] Preferably, a PLC controller is fixedly installed on the outer wall of the base, and the PLC controller is electrically connected to the motor and the cylinder respectively.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a quick assembly fixture for CNG vehicle-mounted gas cylinders, which has the following advantages:

[0016] This invention features a cylinder-driven slider that slides along a prismatic slide bar, allowing for flexible adjustment of the distance between the two clamping components to accommodate CNG vehicle-mounted gas cylinders of different lengths. Simultaneously, a motor-driven screw raises and lowers the upper clamping plate, adjusting the distance between the upper and lower clamping plates to accommodate gas cylinders of different diameters. This eliminates the need to replace the main clamping body, greatly improving the versatility of the clamp. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the CNG vehicle-mounted gas cylinder quick assembly fixture proposed in this utility model;

[0018] Figure 2 This is a side view of the CNG vehicle-mounted gas cylinder quick assembly fixture proposed in this utility model.

[0019] Figure 3 for Figure 1 A schematic diagram of the vertical section structure;

[0020] Figure 4 for Figure 1 Enlarged schematic diagram of the structure at point A in the diagram;

[0021] Figure 5 for Figure 3 Enlarged schematic diagram of the structure at point B in the diagram.

[0022] In the diagram: 1. Base, 2. Prism-shaped slide bar, 3. Slider, 4. Fixed frame, 5. Support rod, 6. Lower clamping plate, 7. First anti-slip pad, 8. Lifting frame, 9. Screw, 10. Motor, 11. Limiting rod, 12. Moving plate, 13. Connecting rod, 14. Upper clamping plate, 15. Second anti-slip pad, 16. Fixed plate, 17. Cylinder, 18. Connecting block, 19. Connecting rod, 20. PLC controller. Detailed Implementation

[0023] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0024] This utility model provides a technical solution for a rapid assembly fixture for CNG vehicle-mounted gas cylinders:

[0025] Please see Figures 1-5A CNG vehicle-mounted gas cylinder quick assembly fixture includes a base 1. A rhomboid slide rod 2 is fixedly installed on the upper surface of the base 1 via a moving groove. Two sliders 3 are slidably installed on the outer wall of the rhomboid slide rod 2. A fixed frame 4 is fixedly installed on the upper surface of each slider 3. A lower clamping plate 6 is fixedly installed on the inner bottom wall of each fixed frame 4 via a support mechanism. A screw 9 is rotatably installed on the upper surface of each fixed frame 4 via a lifting frame 8. A motor 10 connected to the screw 9 on the same side is fixedly installed on the upper surface of each lifting frame 8. A limit rod 11 is fixedly installed inside each lifting frame 8. A moving plate 12 is threadedly installed on the outer wall of each screw 9. The two limit rods 11 slide through the moving plate 12 on the same side. An upper clamping plate 14 is fixedly installed on the bottom wall of each moving plate 12 via a connecting mechanism. A fixed plate 16 is fixedly installed on the upper surface of the base 1. Connecting blocks 18 are fixedly installed on both sides of the fixed plate 16 via a telescopic mechanism. The outer walls of the two connecting blocks 18 are fixedly connected to the outer walls of the sliders 3 on the same side via connecting rods 19.

[0026] Furthermore, the support mechanism includes a support rod 5 fixedly installed on the bottom wall of the fixed frame 4, and the end of the support rod 5 is fixedly connected to the outer wall of the lower clamping plate 6.

[0027] Furthermore, the connecting mechanism includes two connecting rods 13 fixedly installed on the bottom wall of the movable plate 12. The ends of the two connecting rods 13 are fixedly connected to the outer wall of the upper clamping plate 14. The two connecting rods 13 are symmetrically distributed to ensure that the force of the movable plate 12 is evenly transmitted to the upper clamping plate 14, preventing the upper clamping plate 14 from tilting due to uneven force, and ensuring precise cooperation with the lower clamping plate 6.

[0028] Furthermore, the telescopic mechanism includes cylinders 17 fixedly installed on both sides of the fixed plate 16. The telescopic ends of the two cylinders 17 are respectively fixedly connected to the outer wall of the connecting block 18 on the same side. The cylinders 17 serve as a power source, and drive the connecting block 18 to move through the reciprocating motion of the telescopic ends. In turn, the connecting rod 19 drives the slider 3 to slide along the prism-shaped sliding rod 2, thereby realizing the rapid adjustment of the distance between the two clamping components to adapt to gas cylinders of different lengths.

[0029] Furthermore, a first anti-slip pad 7 is fixedly installed on the inner wall of both lower clamping plates 6, and a second anti-slip pad 15 is fixedly installed on the inner wall of both upper clamping plates 14. Both the first anti-slip pad 7 and the second anti-slip pad 15 are made of rubber. The rubber anti-slip pads can not only increase the friction with the outer wall of the gas cylinder and prevent the gas cylinder from sliding during clamping, but also buffer the clamping force through their own elasticity to avoid the gas cylinder surface being hard-crushed, thus playing a protective role.

[0030] Furthermore, a PLC controller 20 is fixedly installed on the outer wall of the base 1, and the PLC controller 20 is electrically connected to the motor 10 and the cylinder 17 respectively.

[0031] In practical use, the working principle of this utility model is as follows:

[0032] When using this utility model, the operator places the CNG vehicle-mounted gas cylinder stably on the two lower clamping plates 6. At this time, the outer wall of the gas cylinder is completely in contact with the first anti-slip pad 7 on the inner wall of the lower clamping plate 6. The rubber first anti-slip pad 7 tightly wraps the bottom of the gas cylinder through its own elastic deformation, which can not only prevent the gas cylinder from sliding laterally in subsequent operations, but also buffer the impact force when the gas cylinder is placed, and prevent the outer wall of the gas cylinder from being scratched or dented due to rigid contact. After placement, the operator selects a preset program that matches the current gas cylinder specifications through the operation panel of the PLC controller 20 on the outer wall of the base 1, or manually inputs the diameter and length parameters of the gas cylinder to ensure that the parameter settings are accurate and efficient.

[0033] Subsequently, the PLC controller 20 first sends instructions to the cylinders 17 on both sides of the fixed plate 16. The telescopic ends of the cylinders 17 begin to extend and retract precisely according to the parameter settings: when the gas cylinder is long, the telescopic ends of the cylinders 17 extend outward, driving the slider 3 to slide away from the fixed plate 16 along the prismatic slide bar 2 through the connecting block 18 and connecting rod 19, increasing the distance between the two lower clamping plates 6. When the gas cylinder is short, the telescopic ends of the cylinders 17 retract inward, pulling the slider 3 to move closer to the fixed plate 16, reducing the distance between the two lower clamping plates 6. During the entire adjustment process, the prismatic fit structure between the prismatic slide bar 2 and the slider 3 plays a key role, completely avoiding rotational deviation when the slider 3 slides, ensuring that the two lower clamping plates 6 are always on the same straight line, so that the two ends of the gas cylinder can be evenly stressed, ensuring positioning accuracy. After the cylinders 17 drive the slider 3 to the preset position, the cylinders 17 automatically lock, maintaining the current distance stability.

[0034] Next, the PLC controller 20 sends a start signal to the motors 10 at the top of the two lifting frames 8. The motors 10 start running according to the preset speed and direction, driving the screws 9 connected to them to rotate synchronously. Since the moving plate 12 is connected to the screws 9 by threads, and the limiting rod 11 inside the lifting frame 8 slides through the moving plate 12, the limiting rod 11 restricts the tendency of the moving plate 12 to rotate with the screws 9, so that the moving plate 12 can only move smoothly downward along the axial direction of the screws 9. During the downward movement of the moving plate 12, the bottom... The two connecting rods 13 drive the upper clamping plate 14 to move down synchronously. The second anti-slip pad 15 on the inner wall of the upper clamping plate 14 gradually approaches the outer wall of the top of the gas cylinder. When the second anti-slip pad 15 contacts the outer wall of the gas cylinder, the PLC controller 20 monitors the clamping force in real time through the current feedback of the motor 10. When the force reaches the preset threshold, the PLC controller 20 immediately controls the motor 10 to stop running. At the same time, the braking function of the motor 10 is activated to prevent the moving plate 12 from sliding down due to gravity, ensuring that the upper clamping plate 14 is stably maintained in the current clamping position.

[0035] At this point, the CNG vehicle-mounted gas cylinder is firmly fixed between the upper clamping plate 14 and the lower clamping plate 6. The first anti-slip pad 7 and the second anti-slip pad 15 form a wrap-around clamping effect on the gas cylinder from the upper and lower sides, which not only further improves the anti-slip effect, but also compensates for the slight unevenness of the outer wall of the gas cylinder through the elasticity of the rubber material, ensuring the sealing and stability of the clamping. The staff can then begin the assembly process such as gas cylinder valve installation, pipeline welding, or airtightness testing. During the operation, even if a slight external force is applied to the gas cylinder, the stable clamping structure of the clamp can ensure that the gas cylinder does not shift, effectively ensuring the assembly accuracy. After the assembly process is completed, the staff only needs to issue a release command through the PLC controller 20. The motor 10 first rotates in the reverse direction, driving the upper clamping plate 14 to move upward to the initial position. Then, the extension end of the cylinder 17 resets, pulling the slider 3 back to the initial distance. The staff can then easily remove the assembled gas cylinder from the lower clamping plate 6. The entire clamping and release process is short and convenient, greatly improving the assembly efficiency of CNG vehicle-mounted gas cylinders.

[0036] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A CNG vehicle-mounted gas cylinder quick assembly fixture, comprising a base (1), characterized in that, The upper surface of the base (1) is fixedly installed with a prismatic slide rod (2) through a moving groove. Two sliders (3) are slidably installed on the outer wall of the prismatic slide rod (2). A fixed frame (4) is fixedly installed on the upper surface of each of the two sliders (3). A lower clamping plate (6) is fixedly installed on the inner bottom wall of each of the two fixed frames (4) through a support mechanism. A screw (9) is rotatably installed on the upper surface of each of the two fixed frames (4) through a lifting frame (8). A motor (10) connected to the screw (9) on the same side is fixedly installed on the upper surface of each of the two lifting frames (8). A limit rod (11) is fixedly installed inside each of the two lifting frames (8). A moving plate (12) is threadedly installed on the outer wall of each of the two screws (9). The two limit rods (11) slide through the moving plate (12) on the same side respectively. An upper clamping plate (14) is fixedly installed on the bottom wall of each of the two moving plates (12) through a connecting mechanism. A fixing plate (16) is fixedly installed on the upper surface of the base (1). Connecting blocks (18) are fixedly installed on both sides of the fixing plate (16) through a telescopic mechanism. The outer walls of the two connecting blocks (18) are fixedly connected to the outer wall of the slider (3) on the same side through connecting rods (19).

2. The CNG vehicle-mounted gas cylinder quick assembly fixture according to claim 1, characterized in that, The support mechanism includes a support rod (5) fixedly installed on the bottom wall of the fixed frame (4), and the end of the support rod (5) is fixedly connected to the outer wall of the lower clamping plate (6).

3. The CNG vehicle-mounted gas cylinder quick assembly fixture according to claim 2, characterized in that, The connecting mechanism includes two connecting rods (13) fixedly installed on the bottom wall of the movable plate (12), and the ends of the two connecting rods (13) are fixedly connected to the outer wall of the upper clamping plate (14).

4. The CNG vehicle-mounted gas cylinder quick assembly fixture according to claim 3, characterized in that, The telescopic mechanism includes cylinders (17) fixedly installed on both sides of the fixed plate (16), and the telescopic ends of the two cylinders (17) are respectively fixedly connected to the outer wall of the connecting block (18) on the same side.

5. The CNG vehicle-mounted gas cylinder quick assembly fixture according to claim 4, characterized in that, The inner walls of the two lower clamping plates (6) are fixedly equipped with a first anti-slip pad (7), and the inner walls of the two upper clamping plates (14) are fixedly equipped with a second anti-slip pad (15). Both the first anti-slip pad (7) and the second anti-slip pad (15) are made of rubber.

6. The CNG vehicle-mounted gas cylinder quick assembly fixture according to claim 5, characterized in that, A PLC controller (20) is fixedly installed on the outer wall of the base (1), and the PLC controller (20) is electrically connected to the motor (10) and the cylinder (17).

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