Spin welding tool

Abstract

The utility model relates to a rotary welding tool which comprises a vertically-arranged stand column, the stand column is coaxially and rotationally connected with a horizontally-arranged bearing disc, the bearing disc is rotationally connected with a plurality of rotating shafts vertically penetrating through the bearing disc, and the rotating shafts are distributed in an annular array mode in the circumferential direction of the bearing disc and located outside the stand column. One rotating shaft is in transmission connection with a first driving device installed on the bearing disc, the top end of each rotating shaft penetrates through the bearing disc and then is coaxially provided with a tray, the bottom end of each rotating shaft penetrates through the bearing disc and then is provided with a chain wheel in a sleeved mode, and the multiple chain wheels are jointly provided with an annular chain in an engaged mode. And a plurality of workpieces can be driven to rotate synchronously to turn over, so that the welding efficiency of the workpieces can be improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of welding equipment, and in particular relates to a rotary welding fixture. Background Technology

[0002] Currently, when welding workpieces, sometimes the workpiece to be welded is placed on a workbench, and after welding one side of the workpiece, the workpiece is rotated so that the other side of the welding position faces the welder, and then the other side of the workpiece is welded. However, in the existing technology, only one workpiece can be rotated at a time, so the welding efficiency of the workpiece needs to be improved. Therefore, there are still shortcomings and deficiencies in the existing technology. Utility Model Content

[0003] The purpose of this invention is to provide a rotary welding fixture to solve the problems mentioned in the background art.

[0004] The technical solution adopted by this utility model to solve the above problems is as follows:

[0005] A rotary welding fixture includes a vertically arranged column, a horizontally arranged support plate rotatably connected to the column along a coaxial axis, and a plurality of vertically extending shafts rotatably connected to the support plate. The shafts are arranged in a circular array along the circumference of the support plate and are located outside the column. One of the shafts is driven by a first drive device mounted on the support plate. The top end of each shaft passes through the support plate and is coaxially mounted with a tray. The bottom end of each shaft passes through the support plate and is fitted with a sprocket. A ring chain is fitted and meshed between the sprockets.

[0006] Furthermore, a second drive device is installed on one side of the column, located below the bearing plate. The second drive device is a vertically distributed geared motor, and a gear is fitted on the output shaft of the second drive device. A slewing bearing with an external gear ring is fitted on the top of the column. The bearing plate is installed on the top surface of the external gear ring, and the external gear ring meshes with the gear.

[0007] Furthermore, the bearing plate and the external gear ring are connected by a first bolt connection pair.

[0008] Furthermore, a tension adjustment mechanism is installed on the bearing plate located outside the ring chain. The tension adjustment mechanism includes a U-shaped plate horizontally installed below the bearing plate. The U-shaped opening of the U-shaped plate faces the ring chain, and two horizontally opposite slide rails are provided on the U-shaped plate. Two movable plates parallel to the slide rails are slidably connected inside the U-shaped plate. One end of each movable plate is located outside the U-shaped plate and is rotatably connected to a tension sprocket that meshes with the ring chain. The other end of each movable plate is connected to the U-shaped plate by a second bolt connection pair, which passes through the U-shaped plate through the slide rails.

[0009] Furthermore, the first drive device is a vertically distributed geared motor. The first drive device is located below the support plate and is mounted on the support plate through a bracket structure. The output shaft of the first drive device is coaxially arranged with one of the rotating shafts and connected through a coupling.

[0010] Furthermore, each tray has a receiving slot on its top surface.

[0011] Furthermore, the tray and the rotating shaft are both detachably fixed connections.

[0012] The beneficial effects of this utility model by adopting the above technical solution are as follows:

[0013] This invention utilizes a rotating support plate connected to a column. During use, as the support plate rotates around the column, it facilitates the sequential rotation of the tray to the position of the welder. This allows the welder to easily place, weld, and retrieve workpieces on the tray even when the welder's position remains stationary. Secondly, by installing sprockets on each rotating shaft and assembling a ring chain between several sprockets, the first drive device can be activated after welding one side of a workpiece. The sprockets and ring chain work together to drive several rotating shafts to rotate synchronously, causing the tray to rotate simultaneously and flip several workpieces. As the support plate rotates, the other side of the workpiece at the welding position faces the welder, allowing the welder to weld the other side of the workpiece sequentially. In short, this invention can simultaneously drive multiple workpieces to rotate and flip, thereby improving welding efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 for Figure 1 A magnified structural diagram of part A in the middle;

[0016] Figure 3 for Figure 1 A bottom view of the middle section of the device;

[0017] Figure 4 for Figure 3 A magnified structural diagram of section B in the middle.

[0018] Reference numerals: 1. Ring chain; 2. Sprocket; 3. First drive device; 4. Bearing plate; 5. Rotating shaft; 6. Tension adjustment mechanism; 61. U-shaped plate; 62. Slide rail; 63. Movable plate; 64. Tension sprocket; 65. Second connecting bolt; 66. Second locking nut; 7. Column; 8. First bolt connection pair; 81. First connecting bolt; 82. First locking nut; 9. Slewing bearing; 91. External gear ring; 10. Gear; 11. Second drive device; 12. Support structure; 13. Pallet; 14. Third bolt connection pair; 15. Mounting ring; 16. Workpiece. Detailed Implementation

[0019] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0020] like Figures 1 to 4 As shown, this utility model provides a rotary welding fixture, including a vertically arranged column 7, the position of which is fixed during use; a horizontally arranged support plate 4 is rotatably connected to the column 7 along a coaxial axis, and the support plate 4 can rotate around the column 7; several vertically inserted rotating shafts 5 are rotatably connected to the support plate 4, and the rotating shafts 5 can rotate on the support plate 4; the several rotating shafts 5 are arranged in a circular array along the circumference of the support plate 4 and are located outside the column 7, and one of the rotating shafts 5 is drively connected to a first driving device 3 installed on the support plate 4, the first driving device 3 being used to drive the rotating shaft 5 to rotate. Each shaft 5 has a tray 13 coaxially mounted after passing through the bearing plate 4 at its top end. In use, the workpiece 16 can be placed on the tray 13 with one side of the workpiece 16 facing the welder. Each shaft 5 has a sprocket 2 fitted after passing through the bearing plate 4 at its bottom end. Several sprockets 2 are meshed with a ring chain 1. In use, when the first drive device 3 is started, the shaft 5 connected to the first drive device 3 can be driven to rotate. Then, with the cooperation of the sprocket 2 and the ring chain 1, several shafts 5 can be driven to rotate synchronously, so that the tray 13 can rotate simultaneously.

[0021] Specifically, when the support plate 4 rotates around the column 7, it facilitates the sequential rotation of the tray 13 to the position of the welder. This allows the welder to place, weld, and retrieve workpieces 16 sequentially on the tray 13 when the welder's position remains stationary. Secondly, after welding one side of the workpiece 16, the first drive device 3 is activated. When the tray 13 rotates simultaneously, it drives several workpieces 16 to rotate synchronously and flip over. Then, when the support plate 4 rotates, the other side of the workpiece 16 at the welding position faces the welder, allowing the welder to weld the other side of the workpiece 16 sequentially. In other words, this invention can simultaneously drive multiple workpieces 16 to rotate synchronously and flip over, thereby improving the welding efficiency of the workpieces 16.

[0022] In addition, the bearing plate 4 or the tray 13 rotates slowly, so that the workpiece 16 will not slip off the tray 13 under its own weight; or a limiting structure such as a slot can be set on the top surface of the tray 13 to help position the workpiece 16 on the tray 13.

[0023] The specific arrangement of the rotatable connection between the bearing plate 4 and the column 7 is as follows: Figure 1 As shown, a second drive device 11 is installed on one side of the column 7, located below the bearing plate 4. The second drive device 11 is a vertically distributed geared motor, and a gear 10 is fitted on the output shaft of the second drive device 11. A slewing bearing 9 with an external gear ring 91 is fitted on the top of the column 7. The slewing bearing 9 is existing technology and also includes an inner ring and rolling elements. During installation, an mounting ring 15 can be fixedly fitted on the top of the column 7, and the inner ring of the slewing bearing 9 and the mounting ring 15 can be connected by a third bolt connection pair 14, which facilitates the installation and removal of the slewing bearing 9 on the column 7. The bearing plate 4 is installed on the top surface of the external gear ring 91, and the external gear ring 91 meshes with the gear 10. Specifically, when the second drive device 11 is started, the bearing plate 4 can be automatically rotated around the column 7 under the cooperation of the gear 10 and the external gear ring 91, which makes it easier to rotate the tray 13 to the position of the welding personnel.

[0024] Furthermore, such as Figure 1As shown, the bearing plate 4 and the outer gear ring 91 are connected by a first bolt connection pair 8. Specifically, there are multiple sets of first bolt connection pairs 8, and these sets are equidistantly distributed along the circumference of the bearing plate 4. Each set of first bolt connection pairs 8 includes a first connecting bolt 81 and a first locking nut 82. In use, when the bearing plate 4 and the outer gear ring 91 are connected, the threaded end of the first connecting bolt 81 is passed through the bearing plate 4 and the outer gear ring 91 in sequence, and then the first locking nut 82 is fitted on it. After the heads of the first locking nut 82 and the first connecting bolt 81 are respectively abutted against the bearing plate 4 and the outer gear ring 91, the bearing plate 4 and the outer gear ring 91 can be connected. This facilitates the installation and removal of the bearing plate 4 on the slewing bearing 9.

[0025] Furthermore, such as Figures 1 to 4 As shown, a tension adjustment mechanism 6 is installed on the bearing plate 4 located outside the ring chain 1. The tension adjustment mechanism 6 includes a U-shaped plate 61 horizontally installed below the bearing plate 4. The U-shaped opening of the U-shaped plate 61 faces the ring chain 1, and two horizontally opposite slide rails 62 are provided on the U-shaped plate 61. Two movable plates 63 are slidably connected inside the U-shaped plate 61 and are arranged parallel to the slide rails 62. One end of each of the two movable plates 63 is located outside the U-shaped plate 61 and is rotatably connected to a tension chain that meshes with the ring chain 1. The wheel 64, and the other end of each movable plate 63 are connected to the U-shaped plate 61 by a second bolt connection pair. The second bolt connection pair passes through the U-shaped plate 61 through the slide rail 62. Specifically, the second bolt connection pair includes a second connecting bolt 65 and a second locking nut 66. During installation, the screw end of the second connecting bolt 65 can be passed through the movable plate 63 and then through the slide rail 62 through the U-shaped plate 61. Then the second locking nut 66 is installed on the second connecting bolt 65 located outside the U-shaped plate 61.

[0026] In use, the position of the tension sprocket 64 in the horizontal direction can be adjusted by sliding the movable plate 63. At the same time, the second connecting bolt 65 can slide along the slide rail 62. After the position of the tension sprocket 64 is adjusted to the correct position, the head of the second connecting bolt 65 and the second locking nut 66 can be pressed against the U-shaped plate 61 respectively. This fixes the position of the movable plate 63. Thus, in use, the tension of the ring chain 1 can be adjusted by adjusting the position of the tension sprocket 64 in the horizontal direction to ensure the appropriate tightness of the ring chain 1 and stable operation.

[0027] The specific configuration of the first drive device 3 is as follows: (e.g.) Figure 1As shown, the first drive device 3 is a vertically distributed geared motor. The first drive device 3 is located below the support plate 4 and is mounted on the support plate 4 through the bracket structure 12. The output shaft of the first drive device 3 is coaxially arranged with one of the rotating shafts 5 and connected through a coupling. Specifically, when the first drive device 3 is started, it can drive the rotating shaft 5 connected to the output shaft of the first drive device 3 to rotate. Then, with the cooperation of the sprocket 2 and the ring chain 1, it can drive several rotating shafts 5 to rotate synchronously, so that the pallet 13 can rotate simultaneously.

[0028] Furthermore, the tray 13 and the rotating shaft 5 are detachably fixedly connected. Specifically, the tray 13 and the rotating shaft 5 can be set as a threaded connection, that is, a threaded hole is opened on the bottom surface of the tray 13, and an external thread that matches the threaded hole is opened on the top of the rotating shaft 5. This makes it easy to disassemble and replace the tray 13 on the rotating shaft 5.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A rotary welding fixture, comprising a vertically arranged column, characterized in that: A horizontally arranged support plate is rotatably connected to the column along a coaxial axis. Several vertically penetrating shafts are rotatably connected to the support plate. The shafts are arranged in a circular array along the circumference of the support plate and are located outside the column. One of the shafts is connected to a first drive device mounted on the support plate. The top of each shaft passes through the support plate and is coaxially mounted with a tray. The bottom of each shaft passes through the support plate and is fitted with a sprocket. Several sprockets are meshed together by a ring chain.

2. The rotary welding fixture according to claim 1, characterized in that: A second drive device is installed on one side of the column, located below the bearing plate. The second drive device is a vertically distributed geared motor, and a gear is fitted on the output shaft of the second drive device. A slewing bearing with an external gear ring is fitted on the top of the column. The bearing plate is installed on the top surface of the external gear ring, and the external gear ring meshes with the gear.

3. The rotary welding fixture according to claim 2, characterized in that: The bearing plate and the external gear ring are connected by a first bolt connection pair.

4. The rotary welding fixture according to claim 1, characterized in that: A tension adjustment mechanism is installed on the bearing plate located outside the ring chain. The tension adjustment mechanism includes a U-shaped plate horizontally installed below the bearing plate. The U-shaped opening of the U-shaped plate faces the ring chain, and two horizontally opposite slide rails are provided on the U-shaped plate. Two movable plates parallel to the slide rails are slidably connected inside the U-shaped plate. One end of each movable plate is located outside the U-shaped plate and is rotatably connected to a tension sprocket that meshes with the ring chain. The other end of each movable plate is connected to the U-shaped plate by a second bolt connection pair, which passes through the U-shaped plate through the slide rails.

5. The rotary welding fixture according to claim 1, characterized in that: The first drive device is a vertically distributed geared motor. The first drive device is located below the support plate and is mounted on the support plate through a bracket structure. The output shaft of the first drive device is coaxially arranged with one of the rotating shafts and connected to it through a coupling.

6. The rotary welding fixture according to claim 1, characterized in that: The tray and the rotating shaft are both detachably fixed.

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