A U-shaped groove rotary welding tool

Abstract

The utility model discloses a kind of U-shaped groove rotary welding tool, including three structures identical, and equidistantly placed support mechanism, and the workpiece placing rack supported by three support mechanisms, and the angle of rotation is adjusted using three support mechanisms, support mechanism includes steel sheet, first locating seat, first support gear, driven gear, servo motor, driving gear, second locating seat, second support gear and two anti-deviation guide roller;The utility model can adjust the welding position of heavy workpiece, change from heavy, inefficient, manual operation with security risk to a kind of efficient, accurate, stable and safe automation process, improve welding quality, production efficiency and operation safety.

Description

Technical Field

[0001] This utility model specifically relates to a U-shaped groove rotary welding fixture. Background Technology

[0002] A crane is a multi-action lifting machine that vertically lifts and horizontally moves heavy objects within a certain range. It is also known as an overhead crane, gantry crane, or hoist.

[0003] During the production and assembly process of cranes, precision welding is required on different parts. Taking the crane's load-bearing beam as an example, different surfaces need to be welded. However, due to the large size and heavy weight of the traditional crane load-bearing beam, multiple hoisting and turning operations are usually required when welding welds in different positions. This method is not only inefficient and requires frequent interruptions to welding, but the turning process is also very dangerous. The workpiece swaying can easily collide with equipment or personnel, posing a huge safety hazard. Moreover, because the workpiece is difficult to turn, welders often have to weld in undesirable positions, such as overhead welding and vertical welding, which are difficult to operate and whose quality is hard to guarantee. Welding in these positions is not only labor-intensive, but also prone to defects such as slag inclusions, incomplete penetration, and poor forming. In addition, simple supports on the platform are not effective in preventing deformation of large workpieces due to thermal stress and other factors during welding, and realignment is required after each hoisting, which is time-consuming and labor-intensive. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a U-shaped groove rotary welding fixture.

[0005] The technical solution adopted by this utility model to solve its technical problem is: A U-shaped groove rotary welding fixture includes three identical and equidistantly placed support mechanisms, and a workpiece placement rack supported by the three support mechanisms and used for rotational angle adjustment. Each support mechanism includes a steel plate fixed to the ground with bolts, a first positioning seat welded to one end of the steel plate, a first support gear mounted inside the first positioning seat via a fixed shaft and integrally formed with anti-detachment edges on both sides, a driven gear integrally formed on one side of the first support gear, a servo motor fixed to the outside of the first positioning seat with bolts and its output end penetrating the first positioning seat, a drive gear located inside the first positioning seat meshing with the driven gear and fixedly installed with the output end of the servo motor, a second positioning seat welded to the other end of the steel plate, a second support gear mounted inside the second positioning seat via a fixed shaft and integrally formed with anti-detachment edges on both sides, and two anti-deviation guide wheels symmetrically mounted in the middle of the steel plate via a fixed shaft.

[0006] Preferably, the first support gear and the second support gear are on the same straight line.

[0007] Preferably, a gap is provided between the two symmetrical anti-deviation guide wheels.

[0008] Preferably, the workpiece placement rack includes rotating wheels supported by three support mechanisms, a connecting steel frame welded between two adjacent rotating wheels, inclined support angle steel welded to the side of the rotating wheels at the upper end and welded to the connecting steel frame at the lower end, and limiting angle steel welded vertically to both sides of the middle part of the connecting steel frame.

[0009] Furthermore, the rotating wheel has equidistant protrusions formed on it.

[0010] Furthermore, a U-shaped groove is also provided on the rotating wheel.

[0011] The beneficial effects of this utility model are as follows: 1. By using synchronous servo motors on three support mechanisms to drive the workpiece placement frame to rotate in place, the load-bearing beam can be adjusted steplessly 360°. Welders can adjust the workpiece to the ideal position for welding from a fixed workstation using control buttons, completely avoiding the risks of frequent hoisting and manual flipping, greatly improving safety and continuity. 2. This fixture can easily rotate any weld seam to the most favorable flat welding position. Flat welding is the position with the highest welding quality, the fastest speed, and the least effort required for operation. This ensures the uniformity of weld formation and the reliability of internal quality, thus guaranteeing the welding quality of the crane's load-bearing beam, a key load-bearing structural component, from a process perspective. 3. The U-shaped channel and the limiting angle steel together form a dedicated positioning and clamping mechanism, which can firmly clamp the load-bearing beam in the predetermined position, effectively resist welding heat deformation, and ensure the consistency of placement each time. The three equidistant support mechanisms provide stable static support to prevent the beam from sagging due to its own weight. The anti-deviation guide wheel, like a track, constrains the axial movement of the rotating wheel, ensuring the smoothness and accuracy of the rotation process and avoiding workpiece deviation or vibration. Attached Figure Description

[0012] Figure 1 This is a structural diagram of a U-shaped groove rotary welding fixture according to the present invention; Figure 2 for Figure 1 Exploded view; Figure 3 for Figure 2 Structural diagram of the central support mechanism; Figure 4 for Figure 3 Top view. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0014] Example like Figure 1-4 As shown, a U-shaped groove rotary welding fixture includes three identical support mechanisms 1 placed at equal intervals, and a workpiece placement rack 2 supported by the three support mechanisms 1 and whose angle can be adjusted by rotation using the three support mechanisms 1.

[0015] The support mechanism 1 includes a steel plate 11 fixed to the ground with bolts, a first positioning seat 12 welded to one end of the steel plate 11, a first support gear 13 installed inside the first positioning seat 12 by a fixed shaft and integrally formed with anti-detachment edges on both sides, a driven gear 14 integrally formed on one side of the first support gear 13, a servo motor 15 fixed to the outside of the first positioning seat 12 by bolts and with its output end penetrating through the first positioning seat 12, a drive gear 16 located inside the first positioning seat 12 meshing with the driven gear 14 and fixedly installed with the output end of the servo motor 15, a second positioning seat 17 welded to the other end of the steel plate 11, a second support gear 18 installed inside the second positioning seat 17 by a fixed shaft and integrally formed with anti-detachment edges on both sides, and two anti-deviation guide wheels 19 symmetrically installed in the middle of the steel plate 11 by a fixed shaft.

[0016] The first support gear 13 and the second support gear 18 are on the same straight line. Specifically, this allows the rotating wheel 21 to simultaneously contact both the first support gear 13 and the second support gear 18, and through the support of the first support gear 13 and the second support gear 18, ensures that the rotating wheel 21 is in contact with both the first support gear 13 and the second support gear 18 at the same time, providing uniform support force, preventing the rotating wheel 21 from deforming or wearing due to uneven force, and extending the service life of the equipment. Furthermore, through the support of the gears arranged in a straight line, the rotation axis of the rotating wheel 21 remains consistent, reducing vibration, making angle adjustment more precise, and welding position more accurate.

[0017] A gap is provided between the two symmetrical anti-deviation guide wheels 19. Specifically, this allows the two sides of the rotating wheel 21 to contact the anti-deviation guide wheels 19, and the anti-deviation guide wheels 19 prevent the rotating wheel 21 from swaying during rotation, effectively preventing the rotating wheel 21 from deviating. The gap design allows the two sides of the rotating wheel 21 to contact the anti-deviation guide wheels 19, which play a guiding role during rotation, preventing the rotating wheel 21 from swaying left and right or deviating from the track, ensuring the smooth rotation of the workpiece placement rack 2. In addition, it reduces welding errors caused by swaying and improves welding accuracy, which is especially important when welding the load-bearing beam of a crane.

[0018] It should be further explained that the servo motors in the three support mechanisms 1 are synchronous servo motors. Therefore, during the actual welding operation, the servo motors in the three support mechanisms 1 rotate synchronously, so that the workpiece placement rack 2 rotates smoothly, avoiding the twisting or vibration of the crane load-bearing beam caused by asynchrony, ensuring consistent welding angles, and improving welding quality and safety.

[0019] The workpiece placement rack 2 includes rotating wheels 21 supported by three support mechanisms 1, a connecting steel frame 22 welded between adjacent rotating wheels 21, diagonal support angle steel 23 welded to the side of the rotating wheels 21 at the upper end and to the connecting steel frame 22 at the lower end, and limiting angle steel 24 welded vertically to both sides of the middle of the connecting steel frame 22. Specifically, the connecting steel frame 22 and the diagonal support angle steel 23 enhance the overall structural strength, enabling them to withstand the load of the crane's load-bearing beam and prevent deformation. The limiting angle steel 24, vertically welded to the connecting steel frame 22, limits the position of the crane's load-bearing beam, preventing slippage during rotation or welding and improving operational safety. The rotating wheels 21 cooperate with the support mechanisms 1 to rotate the workpiece, allowing welders to complete multi-angle welding without moving, reducing labor intensity.

[0020] The rotating wheel 21 has equidistantly formed protruding teeth 211. Specifically, when the rotating wheel 21 contacts the first support gear 13 and the second support gear 18, the protruding teeth 211 mesh with the teeth of the first support gear 13 and the second support gear 18 to provide more reliable power transmission, prevent slippage, and ensure precise angle control when the workpiece placement rack 2 rotates.

[0021] The rotating wheel 21 is also provided with a U-shaped groove 212. Specifically, the U-shaped groove 212 cooperates with the connecting steel frame 22 and the limiting angle steel 24 to form a dedicated placement area, which is suitable for fixing the crane load-bearing beam, simplifying the clamping process. The design of the U-shaped groove 212 allows the crane load-bearing beam to be installed and adjusted quickly, reducing preparation time, improving welding efficiency, and ensuring that the workpiece remains stable during rotation.

[0022] It should be further explained that the first support gear 13 and the second support gear 18 can not only support the rotating wheel 21, but also drive the rotating wheel 21 to rotate and adjust the angle when the servo motor 15 drives the active gear 16 to transmit the driven gear 14. This allows the crane load-bearing beam placed on the workpiece placement rack 2 to rotate and adjust the angle, making it convenient for welders to perform welding processing on the crane load-bearing beam.

[0023] The above embodiments of this utility model are not intended to limit the scope of protection of this utility model. The implementation of this utility model is not limited thereto. All other modifications, substitutions or alterations made to the above structure of this utility model based on the above content of this utility model and in accordance with the common technical knowledge and conventional means in the field, without departing from the basic technical idea of ​​this utility model, shall fall within the scope of protection of this utility model.

Claims

1. A U-shaped groove rotary welding fixture, comprising three identical and equidistantly placed support mechanisms, and a workpiece placement rack supported by the three support mechanisms and capable of rotating and adjusting its angle using the three support mechanisms, characterized in that, The support mechanism includes a steel plate fixed to the ground with bolts, a first positioning seat welded to one end of the steel plate, a first support gear installed inside the first positioning seat via a fixed shaft and integrally formed with anti-detachment edges on both sides, a driven gear integrally formed on one side of the first support gear, a servo motor fixed to the outside of the first positioning seat with bolts and whose output end passes through the first positioning seat, a drive gear located inside the first positioning seat meshing with the driven gear and fixedly installed with the output end of the servo motor, a second positioning seat welded to the other end of the steel plate, a second support gear installed inside the second positioning seat via a fixed shaft and integrally formed with anti-detachment edges on both sides, and two anti-deviation guide wheels symmetrically installed in the middle of the steel plate via a fixed shaft.

2. The U-shaped groove rotary welding fixture according to claim 1, characterized in that, The first support gear and the second support gear are on the same straight line.

3. The U-shaped groove rotary welding fixture according to claim 1, characterized in that, A gap is provided between the two symmetrical anti-deviation guide wheels.

4. The U-shaped groove rotary welding fixture according to claim 1, characterized in that, The workpiece placement rack includes rotating wheels supported by three support mechanisms, a connecting steel frame welded between two adjacent rotating wheels, inclined support angle steel welded to the side of the rotating wheels at the top and to the connecting steel frame at the bottom, and limiting angle steel welded vertically to both sides of the middle of the connecting steel frame.

5. The U-shaped groove rotary welding fixture according to claim 4, characterized in that, The rotating wheel has equidistant protrusions.

6. The U-shaped groove rotary welding fixture according to claim 4, characterized in that, The rotating wheel also has a U-shaped groove.

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