Liquefied gas bottle welding positioning device

Abstract

The utility model belongs to the technical field of liquefied gas bottles, and particularly relates to a liquefied gas bottle welding positioning device which comprises a rotary table, a positioning assembly used for positioning an upper sealing head is arranged on the rotary table and comprises a plurality of positioning wheels, and the positioning wheels move towards the two sides at the same time and abut against the inner side wall of the upper sealing head to position the upper sealing head. The welding positioning device comprises a positioning assembly, the top of the positioning assembly is provided with a fixing assembly, the fixing assembly comprises a pressing roller, the pressing roller presses a lifting handle to the top of an upper sealing head, one side of the upper sealing head is provided with a limiting claw, and the limiting claw abuts against a stand column on the lifting handle. The welding accuracy and the welding efficiency of the upper sealing head and the lifting handle can be achieved, liquefied gas bottles of different sizes can be welded through the device, and the applicability of the device is high.

Description

Technical Field

[0001] This utility model relates to the field of liquefied gas cylinder technology, specifically to a welding positioning device for liquefied gas cylinders. Background Technology

[0002] Liquefied petroleum gas (LPG) cylinders are storage tanks used to store LPG. When they contain LPG, the pressure inside is very high, and even slight improper operation can cause an explosion. They are classified as special equipment. During the production of LPG cylinders, the upper and lower end caps are produced first. The upper end cap is then welded to the handle, and the lower end cap is connected to the base. The upper and lower end caps are sealed together using circumferential welding technology. However, during the welding process between the upper end cap and the handle, there is a lack of a positioning mechanism, which makes welding troublesome and results in low welding efficiency. Utility Model Content

[0003] In order to overcome the above-mentioned defects in the prior art, this utility model provides a liquefied gas cylinder welding positioning device.

[0004] A liquefied gas cylinder welding positioning device includes a turntable. The turntable is provided with a positioning component for positioning an upper end cap. The positioning component includes a plurality of positioning wheels. The plurality of positioning wheels move simultaneously to both sides to abut against the inner sidewall of the upper end cap. A fixing component is provided at the top of the positioning component. The fixing component includes a pressure roller. The pressure roller presses the handle against the top of the upper end cap. A limiting claw is provided on one side of the upper end cap. The limiting claw abuts against the column on the handle.

[0005] Furthermore, the positioning wheels are arranged in pairs on the crossbars, with the two crossbars facing each other. Each crossbar is fixedly connected to a rack, and the two racks are respectively connected to the two sides of the rotating gear. The racks are slidably connected to the turntable, and the rotating gear is rotatably mounted on the turntable and connected to a drive motor fixedly mounted on the turntable.

[0006] Furthermore, the bottom of the turntable is provided with an internal gear ring, which meshes with a drive gear. The drive gear is connected to a transmission motor fixedly mounted on the base, and the base is rotatably connected to the turntable.

[0007] Furthermore, the fixing assembly also includes a rotating shaft with several rollers evenly distributed circumferentially on the rotating shaft. The pressure roller is rotatably mounted on the rollers in an inclined turntable. The top of the rotating shaft is rotatably connected to the lifting column. The lifting column is mounted on the lifting plate. The lifting plate is connected to the output end of the lifting cylinder. The end of the lifting plate away from the lifting cylinder is connected to the support column through a guide rod. The support column is mounted on the turntable.

[0008] Furthermore, the limiting claw has a U-shaped structure, the limiting claw is connected to the output end of the limiting cylinder, the limiting cylinder is mounted on the lifting frame, the lifting frame is slidably connected to the guide rod, the lifting frame is connected to the lifting screw, the top of the lifting screw is connected to the rotary motor, and the rotary motor is fixedly mounted on the support frame.

[0009] Due to the adoption of the above technical solutions, the beneficial technical effects of this utility model are as follows: In this utility model, the positioning component is used to achieve the positioning of the upper end cap. After the upper end cap is positioned, the operator places the handle on top of the upper end cap, and the handle's column abuts against the limiting claw, thereby achieving accurate positioning of the handle. The pressure roller presses on the handle from top to bottom, and then the limiting claw is removed. The turntable rotates, driving the upper end cap and the handle to rotate, thereby achieving circumferential welding of the upper end cap and the handle. Through this welding positioning device, the accuracy and efficiency of welding the upper end cap and the handle can be achieved. Moreover, this device can weld liquefied gas cylinders of different sizes, and the device has strong applicability. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of a welding positioning device for liquefied gas cylinders according to the present invention. Figure 1 ;

[0011] Figure 2 This is a schematic diagram of the structure of a welding positioning device for liquefied gas cylinders according to the present invention. Figure 2 ;

[0012] Figure 3 This is a front view of a welding positioning device for liquefied gas cylinders according to this utility model;

[0013] Figure 4 This is a top view of a welding positioning device for liquefied gas cylinders according to the present invention;

[0014] Figure 5 This utility model Figure 4 Schematic diagram of the cross-sectional structure along the AA direction;

[0015] Figure 6 This is a schematic diagram of the limiting component in this utility model;

[0016] Figure 7 This is a schematic diagram of the installation structure of the positioning component in this utility model;

[0017] Figure 8 This is a schematic diagram of the positioning component in this utility model;

[0018] Figure 9 This is a partial structural schematic diagram of a welding positioning device for liquefied gas cylinders according to the present invention.

[0019] In the diagram: 1. Turntable; 2. Positioning wheel; 3. Upper end cap; 4. Pressure roller; 5. Handle; 6. Limiting claw; 7. Column; 8. Crossbar; 9. Rack; 10. Rotary gear; 11. Drive motor; 12. Internal gear ring; 13. Drive gear; 14. Transmission motor; 15. Rotating shaft; 16. Roller shaft; 17. Lifting column; 18. Lifting plate; 19. Lifting cylinder; 20. Guide rod; 21. Support column; 22. Limiting cylinder; 23. Lifting frame; 24. Guide rod; 25. Lifting screw; 26. Rotary motor; 27. Support frame; 28. Base. Detailed Implementation

[0020] To more clearly illustrate the technical solution of this utility model, the following description is made in conjunction with the accompanying drawings. Obviously, the drawings described below are only one embodiment of this utility model. For those skilled in the art, other embodiments can be obtained based on these drawings and embodiments without creative effort, and all of them fall within the protection scope of this utility model.

[0021] according to Figure 1-9 As shown, a liquefied gas cylinder welding positioning device includes a turntable 1. The turntable 1 is provided with a positioning component for positioning an upper end cap 3. The positioning component includes a plurality of positioning wheels 2. The plurality of positioning wheels 2 move simultaneously to both sides to abut against the inner sidewall of the upper end cap 3. The top of the positioning component is provided with a fixing component. The fixing component includes a pressure roller 4. The pressure roller 4 presses a handle 5 against the top of the upper end cap 3. A limiting claw 6 is provided on one side of the upper end cap 3. The limiting claw 6 abuts against a column 7 on the handle 5.

[0022] In the above specific technical solution, the upper end cap 3 is positioned by a positioning component. After the upper end cap 3 is positioned, the operator places the handle 5 above the upper end cap 3. The column 7 of the handle 5 abuts against the limiting claw 6, thereby achieving accurate positioning of the handle 5. The pressure roller 4 presses down on the handle 5 from top to bottom. Then the limiting claw 6 is removed, the turntable 1 rotates, driving the upper end cap 3 and the handle 5 to rotate, thereby achieving circumferential welding of the upper end cap 3 and the handle 5. Through this welding positioning device, the accuracy and efficiency of welding the upper end cap 3 and the handle 5 can be achieved. Moreover, this device can weld liquefied gas cylinders of different sizes, and the device has strong applicability.

[0023] The positioning wheels 2 are arranged in pairs on the crossbars 8. The two crossbars 8 stand opposite each other. The crossbars 8 are fixedly connected to the racks 9. The two racks 9 are respectively connected to the two sides of the rotating gear 10. The racks 9 are slidably connected to the turntable 1. The rotating gear 10 is rotatably mounted on the turntable 1 and connected to the drive motor 11 fixedly mounted on the turntable 1.

[0024] In the above specific technical solution, the drive motor 11 is started, which drives the rotating gear 10 to rotate. The rotating gear 10 is connected with the rack 9, so that the positioning wheel 2 abuts against the inner wall of the upper end cap 3, thereby achieving the positioning of the upper end cap 3.

[0025] The bottom of the turntable 1 is provided with an internal gear ring 12, which meshes with a drive gear 13. The drive gear 13 is connected to a transmission motor 14 fixedly mounted on a base 28. The base 28 is rotatably connected to the turntable 1. When the transmission motor 14 is started, it drives the drive gear 13 to rotate, thereby rotating the turntable 1, which is beneficial for achieving the ring welding of the liquefied gas cylinder.

[0026] The fixing assembly also includes a rotating shaft 15, on which several rollers 16 are evenly distributed circumferentially. The pressure roller 4 is rotatably mounted on the rollers 16 on an inclined turntable 1. The top of the rotating shaft 15 is rotatably connected to the lifting column 17. The lifting column 17 is mounted on the lifting plate 18. The lifting plate 18 is connected to the output end of the lifting cylinder 19. The end of the lifting plate 18 away from the lifting cylinder 19 is connected to the support column 21 through the guide rod 20. The support column 21 is mounted on the turntable 1.

[0027] In the above specific technical solution, multiple pressure rollers 4 are pressed on the handle 5 in an inclined state, so that the handle 5 is always in close contact with the upper end cap 3 during the welding process. Since the rotating shaft 15 is rotatably connected to the lifting column 17, the upper end cap 3 and the handle 5 can be rotated synchronously during the rotation of the turntable 1. The pressure rollers 4 are raised and lowered by the lifting cylinder 19. When the upper end cap 3 and the handle 5 are welded, the pressure rollers 4 rise, which facilitates the unloading of the welded product.

[0028] The limiting claw 6 has a U-shaped structure and is connected to the output end of the limiting cylinder 22. The limiting cylinder 22 is mounted on the lifting frame 23, which is slidably connected to the guide rod 24. The lifting frame 23 is also connected to the lifting screw 25, and the top of the lifting screw 25 is connected to the rotary motor 26. The rotary motor 26 is fixedly mounted on the support frame 27. This design allows the height of the limiting claw 6 to be adjusted to accommodate handles 5 of different heights. When the pressure roller 4 presses on the handle 5, the limiting claw 6 retracts, preventing interference with the limiting claw 6 during the circumferential welding process.

[0029] The above embodiments are merely exemplary embodiments of the present utility model and are not intended to limit the present utility model. The scope of protection of the present utility model is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to the present utility model within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of the present utility model.

Claims

1. A welding and positioning device for liquefied gas cylinders, comprising a turntable (1), characterized in that, The turntable (1) is provided with a positioning component for positioning the upper end cap (3). The positioning component includes several positioning wheels (2). The several positioning wheels (2) move to both sides at the same time and abut against the inner sidewall of the upper end cap (3). The top of the positioning component is provided with a fixing component. The fixing component includes a pressure roller (4). The pressure roller (4) presses the handle (5) onto the top of the upper end cap (3). A limiting claw (6) is provided on one side of the upper end cap (3). The limiting claw (6) abuts against the column (7) on the handle (5).

2. The liquefied gas cylinder welding positioning device according to claim 1, characterized in that, The positioning wheels (2) are arranged in pairs on the crossbars (8). The two crossbars (8) stand opposite each other. The crossbars (8) are fixedly connected to the racks (9). The two racks (9) are respectively connected to the two sides of the rotating gear (10). The racks (9) are slidably connected to the turntable (1). The rotating gear (10) is rotatably mounted on the turntable (1) and connected to the drive motor (11) fixedly mounted on the turntable (1).

3. The liquefied gas cylinder welding positioning device according to claim 2, characterized in that, The bottom of the turntable (1) is provided with an internal gear ring (12), which meshes with a drive gear (13). The drive gear (13) is connected to a transmission motor (14) fixedly mounted on a base (28). The base (28) is rotatably connected to the turntable (1).

4. The liquefied gas cylinder welding positioning device according to claim 3, characterized in that, The fixing assembly also includes a rotating shaft (15), on which several rollers (16) are evenly distributed in the circumferential direction. The pressure roller (4) is rotatably mounted on the rollers (16) on an inclined turntable (1). The top of the rotating shaft (15) is rotatably connected to the lifting column (17). The lifting column (17) is mounted on the lifting plate (18). The lifting plate (18) is connected to the output end of the lifting cylinder (19). The end of the lifting plate (18) away from the lifting cylinder (19) is connected to the support column (21) through the guide rod (20). The support column (21) is mounted on the turntable (1).

5. The liquefied gas cylinder welding positioning device according to claim 4, characterized in that, The limiting claw (6) has a U-shaped structure. The limiting claw (6) is connected to the output end of the limiting cylinder (22). The limiting cylinder (22) is installed on the lifting frame (23). The lifting frame (23) is slidably connected to the guide rod (24). The lifting frame (23) is connected to the lifting screw (25). The top of the lifting screw (25) is connected to the rotary motor (26). The rotary motor (26) is fixedly installed on the support frame (27).

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