Vertical spin welding device

Abstract

A vertical rotary welding device comprises a workbench and a chuck, a motor is fixedly installed at the bottom of the workbench, a rotating shaft of the motor vertically and upwards penetrates through the workbench, the top end of the rotating shaft of the motor is sleeved with a first belt wheel, a first through hole and a second through hole are formed in the top of the workbench at intervals, and a first rotating rod is rotatably installed in the first through hole; a second rotating rod is rotatably mounted in the second through hole, the top of the first rotating rod is sleeved with a second belt wheel, the bottom of the first rotating rod is sleeved with a third belt wheel, the bottom of the second rotating rod is sleeved with a fourth belt wheel, the top of the second rotating rod is sleeved with an expansion sleeve, and the chuck is fixedly connected with the top end of the second rotating rod through the expansion sleeve; the first belt wheel and the second belt wheel are in transmission connection through a first transmission belt, and the second belt wheel and the third belt wheel are in transmission connection through a second transmission belt. According to the circumferential fillet welding device, the vertically-erected roller set is clamped and fixed through the chuck, the problem that in the circumferential fillet welding process, welding liquid will drop down along the gravity is solved, and the welding quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to a vertical rotary welding device. Background Art

[0002] The horizontal cylinder girth welding station consists of a welding manipulator, a welding rotary roller mechanism, supporting guide rails, a welding system, and a control system. The welding manipulator is a device specifically designed for automatic welding of horizontal cylinders, featuring electric travel and floating automatic tracking control for fillet welds. In conjunction with the rotary drive mechanism, it enables automatic rotary welding of the workpiece, and can complete the automatic welding of butt girth and fillet seams. Currently, the welding of roller assembly rotating bodies mostly uses a horizontal clamp coupled with motor rotation. The tooling generally occupies a large area, resulting in a waste of factory resources. There are also insufficient compatibility with the length and size of the rotating body. During horizontal welding, gravity can easily cause the welding solution to drip onto the ground, resulting in uneven weld thickness. Utility Model Content

[0003] The purpose of the utility model is to provide a vertical rotary welding device to solve the problems existing in the above-mentioned prior art.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions:

[0005] A vertical rotary welding device comprises a workbench and a chuck, wherein a motor is fixedly mounted on the bottom of the workbench, a rotating shaft of the motor vertically passes through the workbench, a first pulley is sleeved on the top end of the rotating shaft of the motor, and a first through hole and a second through hole are spaced apart on the top of the workbench;

[0006] A first rotating rod is rotatably installed in the first through hole, and a second rotating rod is rotatably installed in the second through hole, and both the first rotating rod and the second rotating rod are perpendicular to the top of the workbench;

[0007] The top of the first rotating rod and the top of the second rotating rod are both higher than the top of the workbench, the top of the second rotating rod and the bottom of the second rotating rod are both lower than the bottom of the workbench, the top of the first rotating rod is provided with a second pulley, the bottom of the first rotating rod is provided with a third pulley, the bottom of the second rotating rod is provided with a fourth pulley, the top of the second rotating rod is provided with an expansion sleeve, and the chuck is fixedly connected to the top of the second rotating rod through the expansion sleeve;

[0008] The first pulley and the second pulley are connected to each other through a first transmission belt, and the second pulley and the third pulley are connected to each other through a second transmission belt.

[0009] By adopting the above technical solution, the speed-adjustable motor drives the chuck to rotate through the transmission mechanism composed of the first rotating rod and the second rotating rod, and the roller group to be welded is vertically fixed on the chuck. There is an annular operating space at the bottom of the roller group. During circular fillet welding, the welding liquid is always placed horizontally in the annular operating space, which is more conducive to stable operation and ensures that the weld is neat and uniform in strength. At the same time, unlike horizontal rotary welding, vertical rotary welding does not require fixing both ends of the roller group, so it can adapt to roller groups of different lengths.

[0010] In a further embodiment, the chuck includes a disc body, a driving mechanism and a plurality of movable claws. The driving mechanism is fixedly mounted on the bottom of the workbench. A mounting groove is provided at the bottom of the disc body. The mounting groove is bolted and fixed to the expansion sleeve. The plurality of movable claws are axially slidably mounted at equal intervals on the top of the disc body. The plurality of movable claws are connected to the driving mechanism through an air pipe.

[0011] By adopting the above technical solution, the chuck is pneumatic, with fast and stable clamping speed. The operator only needs to press a button to fix and release it. The air pump pushes the wedge block at the bottom to move, and the clamping claws sliding on the wedge block will also move accordingly, with a faster response speed and higher work efficiency compared to manual chucks.

[0012] In a further embodiment, a threaded hole is provided at the bottom of the rotating rod, a spring washer is provided at the bottom of the first rotating rod and the bottom of the second rotating rod, the third pulley is bolted to the bottom of the first rotating rod, the fourth pulley is bolted to the bottom of the second rotating rod, a spring washer is provided at the top of the rotating rod in the first through hole, and the second pulley is bolted to the top of the first rotating rod.

[0013] By adopting the above technical solution, the spring washer can prevent the pulley fixed on the rotating rod from loosening during operation.

[0014] In a further embodiment, keyways are provided on the inner sides of the first pulley, the second pulley, the third pulley and the fourth pulley, and gear teeth are provided on the outer sides thereof at equal intervals.

[0015] By adopting the above technical solution, the precision of the synchronous pulley is higher and more stable than that of ordinary pulleys, which can make the rotation of the roller group more stable and is more suitable for welding occasions that require improved precision.

[0016] In a further embodiment, the inner sides of the first transmission belt and the second transmission belt are both provided with belt teeth that mesh with the gear teeth.

[0017] By adopting the above technical solution, the synchronous pulley can cooperate with the synchronous belt more accurately.

[0018] In a further embodiment, the top of the workbench is L-shaped.

[0019] By adopting the above technical solution, the motor and the first rotating rod are accommodated on one side of the L-shaped workbench, and the first rotating rod and the second rotating rod are accommodated on the other side, and the welders work at the angle of the L-shaped workbench.

[0020] In summary, the present invention has the following beneficial effects:

[0021] 1. The chuck, in conjunction with the first and second rotating rods, transforms the previously horizontal rotary welding device into a vertical one. This prevents the welding fluid from flowing due to gravity during welding, which in turn affects the welding quality. The upright roller assembly keeps the welding fluid within the annular operating area at the bottom of the roller assembly during circumferential fillet welding, effectively improving welding quality.

[0022] 2. Through the setting of the motor, the first rotating rod and the second rotating rod, it can cooperate with the L-shaped workbench to maximize the visualization range and operating space. In addition, it cooperates with the chuck to greatly shorten the clamping time and improve the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is an overall schematic diagram of a vertical rotary welding device of the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of a vertical rotary welding device used to embody the transmission connection of multiple pulleys in the utility model;

[0025] Figure 3 It is a schematic structural diagram for reflecting the interior of a chuck in a vertical rotary welding device of the utility model.

[0026] In the figure, 1. chuck; 11. disc body; 12. driving mechanism; 13. movable claw; 2. motor; 3. first rotating rod; 4. second rotating rod; 5. first pulley; 6. second pulley; 7. third pulley; 8. fourth pulley; 9. first transmission belt; 10. second transmission belt. DETAILED DESCRIPTION

[0027] The present invention will be described in further detail below with reference to the accompanying drawings.

[0028] The same parts are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the attached Figure 1In the description, the terms "bottom" and "top," "inner" and "outer" refer to directions toward or away from a particular component geometry, respectively. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this specification, "plurality" means two or more, unless otherwise specifically defined in terms of the center's direction.

[0029] Example:

[0030] like Figure 1-Figure 3 As shown, a vertical rotary welding device includes a workbench and a chuck 1. The top of the workbench is L-shaped, and a motor 2 is fixedly installed at the bottom of the workbench. The rotating shaft of the motor 2 passes through the workbench vertically upward, and the top of the rotating shaft of the motor 2 is sleeved with a first pulley 5. The top of the workbench is spaced apart with a first through hole and a second through hole. A first rotating rod 3 is rotatably installed in the first through hole, and a second rotating rod 4 is rotatably installed in the second through hole. The first rotating rod 3 and the second rotating rod 4 are both perpendicular to the top of the workbench, the top of the first rotating rod 3 and the top of the second rotating rod 4 are both higher than the top of the workbench, and the top of the second rotating rod 4 and the bottom of the second rotating rod 4 are both lower than the bottom of the workbench, the top of the first rotating rod 3 is sleeved with a second pulley 6, the bottom of the first rotating rod 3 is sleeved with a third pulley 7, the bottom of the second rotating rod 4 is sleeved with a fourth pulley 8, and the top of the second rotating rod 4 is sleeved with a The expansion sleeve is used, and the chuck 1 is fixedly connected to the top end of the second rotating rod 4 through the expansion sleeve. The first pulley 5 and the second pulley 6 are connected by the first transmission belt 9, and the second pulley 6 and the third pulley 7 are connected by the second transmission belt 10. Through the expansion sleeve, while the second rotating shaft and the chuck 1 are fixedly connected, there is no need for such high precision requirements as interference connection. In addition, multiple pulleys are sleeved on the first rotating rod 3, the second rotating rod 4 and the rotating shaft of the motor 2, so that the motor 2 can drive the chuck 1 after deceleration. The L-shaped workbench can allow the operator to obtain sufficient operating space and observation space. The workbench is also provided with a button for controlling the fixing and release of the clamping claw. Through vertical welding, the welding liquid will stay in the annular operating area at the bottom of the roller group during circular corner welding, and will not flow directly to the ground, thereby greatly improving the welding quality and further improving the welding efficiency.

[0031] like Figure 1-Figure 3As shown, the chuck 1 includes a disc body 11, a driving mechanism 12 and a plurality of movable claws 13. The driving mechanism 12 is fixedly mounted on the bottom of the workbench. The bottom of the disc body 11 is provided with a mounting groove, which is bolted to the expansion sleeve. A plurality of movable claws 13 are axially slidably mounted on the top of the disc body 11 at equal intervals. The plurality of movable claws 13 are connected to the driving mechanism 12 through an air pipe. The bottom of the rotating rod is provided with a threaded hole. The bottom of the first rotating rod 3 and the bottom of the second rotating rod 4 are provided with a spring washer. The third pulley 7 is bolted to the bottom of the first rotating rod 3, the fourth pulley 8 is bolted to the bottom of the second rotating rod 4, the top of the rotating rod in the first through hole is provided with a spring washer, the second pulley 6 is bolted to the top of the first rotating rod 3, the first pulley 5, the second pulley The inner sides of the pulley 6, the third pulley 7 and the fourth pulley 8 are all provided with keyways, and the outer sides of the first pulley 5, the second pulley 6, the third pulley 7 and the fourth pulley 8 are evenly spaced with gear teeth. The inner sides of the first transmission belt 9 and the second transmission belt 10 are both provided with belt teeth that mesh with the gear teeth. Through the air pump as the driving mechanism 12, multiple movable claws 13 can firmly fix the roller group on the chuck 1. The overall clamping speed of the pneumatic chuck 1 is fast and stable. The operator only needs to press a button to achieve fixing and loosening. The air pump pushes the wedge block at the bottom to move, and the claws slidingly mounted on the wedge block will also move accordingly. It has a faster response speed and higher working efficiency than the manual chuck 1. The transmission distance of the mutually meshing synchronous belt and synchronous pulley is also more precise.

[0032] Specific implementation process: Motor 2 drives the first pulley 5 to rotate, the first pulley 5 drives the second pulley 6 to rotate through the V-belt transmission, and the reduction ratio is formed by the outer diameter size of the second pulley 6, the second pulley 6 drives the third pulley 7 at the bottom end of the first rotating shaft to rotate through the first rotating shaft, the third pulley 7 drives the fourth pulley 8 to rotate through the transmission belt, the fourth pulley 8 drives the chuck 1 to rotate through the second rotating shaft, the chuck 1 tightens the roller group that needs to be welded, and finally realizes the drive of motor 2, and drives the roller group to rotate after deceleration.

[0033] In the embodiments disclosed in this utility model, the terms "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; "connected" can mean a direct connection or an indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments disclosed in this utility model based on specific circumstances.

[0034] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A vertical rotary welding device, comprising a workbench and a chuck (1), characterized in that: A motor (2) is fixedly mounted on the bottom of the workbench, a rotating shaft of the motor (2) vertically passes through the workbench upward, a first pulley (5) is sleeved on the top end of the rotating shaft of the motor (2), and a first through hole and a second through hole are spaced apart at the top of the workbench; A first rotating rod (3) is rotatably mounted in the first through hole, and a second rotating rod (4) is rotatably mounted in the second through hole. Both the first rotating rod (3) and the second rotating rod (4) are perpendicular to the top of the workbench. The top of the first rotating rod (3) and the top of the second rotating rod (4) are both higher than the top of the workbench, and the top of the second rotating rod (4) and the bottom of the second rotating rod (4) are both lower than the bottom of the workbench. The top of the first rotating rod (3) is provided with a second pulley (6), the bottom of the first rotating rod (3) is provided with a third pulley (7), the bottom of the second rotating rod (4) is provided with a fourth pulley (8), the top of the second rotating rod (4) is provided with an expansion sleeve, and the chuck (1) is fixedly connected to the top of the second rotating rod (4) through the expansion sleeve. The first pulley (5) and the second pulley (6) are connected in transmission via a first transmission belt (9), and the second pulley (6) and the third pulley (7) are connected in transmission via a second transmission belt (10).

2. The vertical rotary welding device according to claim 1, characterized in that: The chuck (1) comprises a chuck body (11), a driving mechanism (12) and a plurality of movable claws (13); the driving mechanism (12) is fixedly mounted on the bottom of a workbench; a mounting groove is provided at the bottom of the chuck body (11); the mounting groove is bolted and fixed to a tightening sleeve; the plurality of movable claws (13) are axially slidably mounted at equal intervals on the top of the chuck body (11); and the plurality of movable claws (13) are all connected to the driving mechanism (12) via an air pipe.

3. The vertical rotary welding device according to claim 1, characterized in that: The bottom of each rotating rod is provided with a threaded hole, the bottom of each of the first rotating rod (3) and the bottom of each of the second rotating rod (4) are provided with a spring washer, the third pulley (7) is bolted to the bottom of the first rotating rod (3), the fourth pulley (8) is bolted to the bottom of the second rotating rod (4), the top of the rotating rod in the first through hole is provided with a spring washer, and the second pulley (6) is bolted to the top of the first rotating rod (3).

4. The vertical rotary welding device according to claim 1, characterized in that: The inner sides of the first pulley (5), the second pulley (6), the third pulley (7) and the fourth pulley (8) are all provided with keyways, and the outer sides of the first pulley (5), the second pulley (6), the third pulley (7) and the fourth pulley (8) are evenly spaced with gear teeth.

5. The vertical rotary welding device according to claim 1, characterized in that: The inner sides of the first transmission belt (9) and the second transmission belt (10) are both provided with belt teeth that mesh with the gear teeth.

6. The vertical rotary welding device according to claim 1, characterized in that: The top of the workbench is arranged in an L shape.

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