Welding cylinder weld inspection aid for assembly line

Abstract

The utility model relates to the field of welding gas cylinder production, concretely relates to a welding gas cylinder weld inspection auxiliary device for assembly line. A welding gas cylinder weld inspection auxiliary device for assembly line, including conveying wheel conveyor, conveying wheel conveyor includes first conveyor belt, second conveyor belt and third conveyor belt, and conveying wheel conveyor is equipped with a plurality of conveying wheel groups, and each conveying wheel group includes conveying wheel that is oppositely arranged left and right and is used for supporting the gas cylinder to be detected, and is equipped with the space for giving room between first conveyor belt and second conveyor belt, and between second conveyor belt and third conveyor belt, and is equipped with lifting frame at two space for giving room, and is equipped with at least two high overturning cylinders and two low overturning cylinders on lifting frame, and the distance of space for giving room along the direction of conveying wheel conveyor circulation is less than the diameter of conveying wheel. The utility model has the advantages of efficient and nondestructive transfer of gas cylinder, seamless butt joint weld detection station and convenient detection.

Description

Technical Field

[0001] This utility model relates to the field of welded gas cylinder production, specifically to an auxiliary device for inspecting weld seams of welded gas cylinders used in assembly lines. Background Technology

[0002] After welding the cylinder body using the welding device disclosed in patents such as 2019200427607, or welding the cylinder body to the handle and base, the cylinder needs to be transferred to a weld inspection device for weld inspection. If a crane is used to transport the welded cylinder, a lifting device needs to hook onto the protective cover or handle, and the hook needs to be inserted into the cover or handle. Pulling the cylinder up with the hook can easily damage the protective cover or handle. If a forklift is used, the forks need to be used to lift the cylinder from the ground, which can easily damage the cylinder body. Furthermore, both lifting devices and forklifts suffer from poor positioning accuracy and difficulty in connecting to automated weld inspection devices. Utility Model Content

[0003] The purpose of this invention is to provide an auxiliary device for inspecting welded gas cylinder welds on a production line, which facilitates the transfer of welded gas cylinders from the welding station to the weld inspection station without causing damage to the surface of the gas cylinder.

[0004] To achieve the above objectives, this utility model employs an auxiliary device for inspecting weld seams of welded gas cylinders on a production line. The device includes a conveyor belt comprising a first conveyor belt, a second conveyor belt, and a third conveyor belt with the same rotation direction. Each of the first, second, and third conveyor belts is equipped with multiple conveyor wheel sets. Each conveyor wheel set includes conveyor wheels arranged opposite each other to support the gas cylinder to be inspected. When the gas cylinder is completely positioned on the conveyor belt, at least three conveyor wheel sets are located under the cylinder body. Clearance spaces are provided between the first and second conveyor belts, and between the second and third conveyor belts. Lifting frames are provided at both clearance spaces. The lifting frames are fixed to the output end of a lifting drive mechanism. At least two high-tilting rollers and two low-tilting rollers are provided on the lifting frames. The high-tilting rollers or low-tilting rollers rotate under the action of the tilting drive mechanism. The low-tilting rollers are located between the two high-tilting rollers and are lower than the high-tilting rollers. The distance of the clearance space along the rotation direction of the conveyor belt is less than the diameter of the conveyor wheel.

[0005] One end of the first conveyor belt of this invention can extend directly to the welding device. The welded gas cylinder falls onto the first conveyor belt through the lifting mechanism of the welding device itself, and then moves to the second conveyor belt. Subsequently, the lifting frame of this invention rises and lifts the gas cylinder, supporting it on the high-turning roller and the low-turning roller. The turning drive mechanism is activated to make the gas cylinder rotate, thereby cooperating with the weld inspection device located at the second conveyor belt to perform weld inspection. After the inspection is completed, the lifting frame is reset, so that the gas cylinder falls back onto the conveyor wheel set of the second conveyor belt, and then enters the third conveyor belt along the second conveyor belt to move away from the inspection station.

[0006] By setting up first, second, and third conveyor belts, the gas cylinders can be transferred continuously and smoothly from the welding station to the testing station, avoiding surface scratches, bumps, or structural damage caused by traditional hoisting or forklift transportation. The segmented design allows for clearance space between adjacent segments, providing integrated space for the lifting frame while maintaining the continuity of the overall conveying.

[0007] The clearance space is narrower than the diameter of the conveyor wheel, ensuring the structural continuity of the conveyor belt. Simultaneously, the vertical movement of the lifting frame avoids interference issues that might arise from horizontal movement. Eight rotating rollers—two high-tilting rollers and two low-tilting rollers—support the gas cylinder. The cylinder's own weight keeps it axially aligned during rotation, preventing radial runout or end-face wobble and ensuring the accuracy of weld inspection.

[0008] This utility model device achieves efficient and non-destructive transfer of gas cylinders with high surface quality requirements through a coordinated design of segmented conveying, vertical lifting, gravity self-centering, and friction rotation, and can seamlessly connect with the weld inspection station.

[0009] Preferably, the high-tilting roller is located on the outer side of the conveyor wheel of the conveyor wheel assembly, and the low-tilting roller is located on the inner side of the conveyor wheel of the conveyor wheel assembly. That is, the left high-tilting roller is located on the left side of the conveyor wheel, the right high-tilting roller is located on the right side of the conveyor wheel, the left low-tilting roller is located on the right side of the left conveyor wheel, and the right low-tilting roller is located on the left side of the right conveyor wheel.

[0010] After the gas cylinder is lifted, eight rotating rollers immediately form a V-shaped support with the outer edge higher than the inner edge, automatically centering the cylinder using its own weight to eliminate axial and radial runout and ensure weld inspection accuracy. During the return process, the cylinder first detaches from the V-shaped support and is then supported by the original conveyor wheel. The switching process is zero-impact and zero-collision, achieving truly lossless transfer. Preferably, the two lifting frames are connected by a connecting frame located at the output end of the lifting drive mechanism.

[0011] One drive system can synchronize the lifting and lowering of the two sets of supporting high and low tilting rollers, eliminating the risk of cylinder tilting, jamming or secondary slippage caused by asynchrony; at the same time, it makes the space below more open, which is convenient for arranging cable trays, air pipes or vision probes.

[0012] Preferably, the conveyor wheel is an angled, irregularly shaped wheel. That is, the conveyor wheel has a conical surface or a sloping shoulder, with a certain inclination angle. The contact surface is not large, but the contact is very sufficient, making it less likely to slip or damage the surface of the cylinder.

[0013] This invention has the advantages of efficient and non-destructive transfer of gas cylinders, seamless connection to weld inspection stations, and ease of inspection. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of the door body, roller assembly, guide rail and transmission mechanism of the sensor door according to this utility model.

[0015] Figure 2 This is a structural schematic diagram of the lifting frame of this utility model. Detailed Implementation

[0016] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

[0017] Depend on Figure 1 As shown, this embodiment discloses an auxiliary device for inspecting weld seams of welded gas cylinders in a production line. It includes a conveyor belt comprising a first conveyor belt 11, a second conveyor belt 12, and a third conveyor belt 13, all rotating in the same direction. Each of the three conveyor belts has multiple conveyor wheel sets. Each conveyor wheel set includes a conveyor wheel 10 arranged opposite each other to support the gas cylinder 100 to be inspected. The conveyor wheel 10 is an irregularly shaped wheel with an inclination angle. In this embodiment, the circumferential surface of the conveyor wheel forms a conical surface. When the gas cylinder 100 is completely positioned on the conveyor belt, i.e., after the gas cylinder 100 has moved from the welding station to the conveyor belt, and the gas cylinder 100 does not need to be moved to any other station besides the inspection station, three conveyor wheel sets are located under the cylinder body of the gas cylinder 100. In this embodiment, the conveyor belt uses a chain drive assembly to achieve synchronous linkage of multiple conveyor wheel sets, powered by a motor.

[0018] Depend on Figure 1 and Figure 2As shown, clearance spaces are provided between the first conveyor belt 11 and the second conveyor belt 12, and between the second conveyor belt 12 and the third conveyor belt 13. Lifting frames 21 are provided at both clearance spaces. The two lifting frames 21 are connected by a connecting frame 22, which is located at the output end of the lifting drive mechanism 23. Each lifting frame 21 is provided with two high-turning rollers 24 and two low-turning rollers 25. The low-turning rollers 25 rotate under the action of the turning drive mechanism (not shown in the figure). The low-turning rollers 25 are located between the two high-turning rollers 24, and the low-turning rollers 25 are lower than the high-turning rollers 24. The distance of the clearance space along the flow direction of the conveyor belt is less than the diameter of the conveyor wheel 10 to ensure the continuity of the conveyor wheel's support for the gas cylinder. In this embodiment, the high-tilting roller 24 is located on the outer side of the conveyor wheel of the conveyor wheel assembly, and the low-tilting roller 24 is located on the inner side of the conveyor wheel of the conveyor wheel assembly; that is, the left high-tilting roller is located on the left side of the conveyor wheel, the right high-tilting roller is located on the right side of the conveyor wheel, the left low-tilting roller is located on the right side of the left conveyor wheel, and the right low-tilting roller is located on the left side of the right conveyor wheel. The tilting drive mechanism in this embodiment includes a transmission belt assembly for transmitting power and a servo motor for outputting power.

Claims

1. An auxiliary device for inspecting weld seams of welded gas cylinders in an assembly line, comprising a conveyor belt and a conveyor wheel, characterized in that: The conveyor belt includes a first conveyor belt, a second conveyor belt, and a third conveyor belt with the same direction of rotation. Each of the first, second, and third conveyor belts is equipped with multiple conveyor wheel sets. Each conveyor wheel set includes conveyor wheels arranged opposite each other to support the gas cylinder to be tested. When the gas cylinder is located on the conveyor belt, at least three conveyor wheel sets are located under the cylinder body. There are clearance spaces between the first and second conveyor belts and between the second and third conveyor belts. A lifting frame is provided at each of the clearance spaces. The lifting frame is fixed to the output end of the lifting drive mechanism. The lifting frame is equipped with at least two high-turning rollers and two low-turning rollers. The high-turning rollers or low-turning rollers rotate under the action of the turning drive mechanism. The low-turning rollers are located between the two high-turning rollers and are lower than the high-turning rollers. The distance of the clearance space along the direction of rotation of the conveyor belt is less than the diameter of the conveyor wheel.

2. The auxiliary device for inspecting weld seams of welding gas cylinders for assembly lines according to claim 1, characterized in that: The high-tilt roller is located on the outside of the conveyor wheel of the conveyor wheel assembly, and the low-tilt roller is located on the inside of the conveyor wheel of the conveyor wheel assembly.

3. The auxiliary device for inspecting weld seams of welding gas cylinders for production lines according to claim 1, characterized in that: The two lifting frames are connected by a connecting frame, which is located at the output end of the lifting drive mechanism.

4. The auxiliary device for inspecting weld seams of welding gas cylinders for assembly lines according to claim 1, characterized in that: The conveyor wheel is an irregularly shaped wheel with an inclination angle.

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