A rotary positioning device for robot welding stopper

Abstract

The present invention relates to a rotation positioning device for a robot welding stopper, comprising a rotationally connected chassis and a bottom plate vertically connected to the rotationally connected chassis and rotating with the rotationally connected chassis, the bottom plate, the projection of the bottom plate on the rotationally connected chassis passing through the center of the rotating shaft of the rotationally connected chassis, and clamps for fixing the stopper to be welded and the welded parts are provided on both sides of the bottom plate. Compared with the prior art, the present invention can move the stopper to be welded originally installed on both sides to a processing station by rotation through the rotation of the rotationally connected chassis, thereby reducing the requirements for the robot and improving the processing efficiency.

Description

Technical Field

[0001] The invention relates to a positioning device, in particular to a rotation positioning device used for a robot welding stopper. Background Art

[0002] In the past, welding technology has long been based on manual soldering, which uses low heat source temperature and unconcentrated energy, and cannot be used for welding large-section and long weld workpieces. In addition, due to work needs, people are often harmed by factors such as high temperature, corrosion and toxic gases, which increases the labor intensity of workers and even endangers their lives.

[0003] Since the advent of the fully automatic soldering machine, the corresponding various problems have been solved. The automatic soldering machine can have a larger space for full-scale adjustment, so that the soldering iron and solder wire do not need the operator's hands. It completely replaces human hands, and the arm can be adjusted to any welding position you want.

[0004] However, this method places too high demands on the robot arm, which needs to have multiple degrees of freedom. Such robots are technically demanding and expensive. If such robots are deployed on a large scale, the strategic safety is poor. In addition, the robot's back-and-forth movement in multiple degrees of freedom will also lead to low welding efficiency. Summary of the invention

[0005] The purpose of the present invention is to provide a rotation positioning device for a robot welding block. By rotating the rotating connecting chassis, the blocks to be welded originally installed on both sides can be moved to the processing station by rotation, thereby reducing the requirements for the robot and improving the processing efficiency.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] A rotation positioning device for a robot welding block comprises a rotating connection chassis and a bottom plate vertically connected to the rotating connection chassis and rotating with the rotating connection chassis, the projection of the bottom plate on the rotating connection chassis passes through the center of the rotating shaft of the rotating connection chassis, and clamps for fixing the block to be welded and the welded part are provided on both sides of the bottom plate.

[0008] Further, the fixture includes a first fixture unit for positioning and limiting the stopper to be welded and a second fixture unit for fixing the weldment;

[0009] The first fixture unit comprises:

[0010] A positioning block used to fix the stopper to be welded on the base plate.

[0011] A sliding column is used for supporting the sliding of the positioning base block. The sliding column passes through the positioning base block and has one end connected to the bottom plate. The other end is provided with a flat pad for limiting the positioning base block.

[0012] Furthermore, the positioning base block is also provided with a handle.

[0013] Furthermore, the first fixture unit also includes a circular gasket for raising one end of the stopper to be welded, and the circular gasket is located between the bottom plate and the stopper to be welded.

[0014] Furthermore, a positioning column is provided at one end of the stopper to be welded, and a first locking bolt and a positioning hole cooperating with the positioning column are provided on the positioning base block. After the positioning column is inserted into the positioning hole, it is locked by the first locking bolt.

[0015] Furthermore, the positioning hole is a square hole.

[0016] Furthermore, the second clamp unit includes a limit seat, the limit seat is fixed on the bottom plate, and the welding piece is installed on the limit seat.

[0017] Furthermore, a spacer ring is provided between the limit seat and the welding part.

[0018] Furthermore, the limiting seat is also provided with a second locking bolt for fixing the stopper to be welded.

[0019] Furthermore, two clamps are respectively provided on both sides of the bottom plate.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1) By rotating the rotary connection chassis, the blocks to be welded originally installed on both sides can be moved to the processing station by rotation, thereby reducing the requirements for the robot and improving the processing efficiency.

[0022] 2) Good stability and high processing accuracy. After improvement, the welding processing device can position the welded product more accurately.

[0023] 3) The slide column can provide height adjustment of the positioning base block within a certain degree of freedom, which is convenient for clamping the stopper.

[0024] 4) The handle can facilitate the lifting and pressing operations of the positioning base block.

[0025] 5) The positioning hole is a square hole, which can avoid rotation and achieve better positioning effect.

[0026] 6) A spacer ring is provided between the limit seat and the weldment to separate the weldment and improve the accuracy of the positioning of the weldment.

[0027] 7) The limit seat fixes the stopper and the weldment at the same time, which can improve the position accuracy of the stopper and the weldment.

[0028] 8) The round gasket can put the product in a balanced position during the welding arrangement of the device. When the two ends of the block are at different heights, the stability can be improved, thus expanding the application range of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the present invention;

[0030] Figure 2 A schematic diagram showing the angle of one side of the bottom plate;

[0031] Figure 3 It is a schematic diagram of the three-dimensional structure of the rotating connection chassis in a horizontal state;

[0032] Among them: 1. Rotating connecting chassis, 2. Bottom plate, 3. Positioning base block, 4. Spacer ring, 5. Welding part, 6. Sliding column, 7. Flat washer, 8. Handle, 9. Limit seat, 10. Round gasket, 11. Second locking bolt, 12. First locking bolt, 13. Stopper to be welded, 14. Positioning hole. DETAILED DESCRIPTION

[0033] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0034] A rotary positioning device for a robot welding stopper, such as Figure 1 As shown, it includes a rotating connection chassis 1 and a base plate 2 which is vertically connected to the rotating connection chassis 1 and rotates with the rotating connection chassis 1. The base plate 2 is connected to the rotating connection chassis 1 through countersunk bolts. The projection of the base plate 2 on the rotating connection chassis 1 passes through the center of the rotating shaft of the rotating connection chassis 1. Both sides of the base plate 2 are provided with clamps for fixing the block 13 to be welded and the weldment 5. In this embodiment, two clamps are provided on each side of the base plate 2.

[0035] By rotating the rotating connecting chassis 1, the blocks 13 to be welded originally installed on both sides can be moved to the processing station by rotation, thereby reducing the requirements for the manipulator and improving the processing efficiency. The blocks can be rotated at the same station, and the blocks located in four directions can be fully welded by the welding arm relying on only one displacement movement.

[0036] The fixture includes a first fixture unit for positioning and limiting the stopper 13 to be welded and a second fixture unit for fixing the weldment 5;

[0037] The first fixture unit comprises:

[0038] A positioning block 3 for fixing the stopper 13 to be welded on the base plate 2,

[0039] A slide column 6 is used to support the sliding of the positioning base block 3. It passes through the positioning base block 3 and is connected to the bottom plate 2 at one end. A flat pad 7 for limiting the positioning base block 3 is provided on the other end. The slide column 6 can provide height adjustment of the positioning base block 3 within a certain degree of freedom, which is convenient for clamping the stopper.

[0040] A handle 8 is also provided on the positioning base block 3 .

[0041] The first fixture unit also includes a circular gasket 10 for raising one end of the stopper 13 to be welded. The circular gasket 10 is located between the base plate 2 and the stopper 13 to be welded. In order to reduce the size, the circular gasket 10 may not be a complete circle, and the part exceeding the base plate 2 may be cut off.

[0042] A positioning column is provided at one end of the stopper 13 to be welded, and a first locking bolt 12 and a positioning hole 14 cooperating with the positioning column are provided on the positioning base block 3. After the positioning column is inserted into the positioning hole 14, it is locked by the first locking bolt 12. The first locking bolt 1 can specifically be M6x25.

[0043] The positioning hole 14 is a square hole, which can avoid rotation and achieve a better positioning effect.

[0044] The second fixture unit includes a limiting seat 9 , which is fixed on the base plate 2 , and the welding piece 5 is installed on the limiting seat 9 .

[0045] A spacer ring 4 is provided between the limiting seat 9 and the welding piece 5 .

[0046] The limiting seat 9 is also provided with a second locking bolt 11 for fixing the stopper 13 to be welded, which may be a M10x30 bolt.

[0047] The above device uses a rotatable workbench to replace the displacement function of a part of the manipulator, and uses the simplest program to control the automatic welding of the manipulator. While effectively reducing cost expenditure, it can efficiently and stably improve the output and quality of our company's welding blocks.

[0048] When the above device is working, first, the block 5 to be welded is embedded in the circular opening of the positioning base block 3, and the welded blocks and welded sheets are placed at both ends. The positioning base block 3 is closed with the handle 8, and four groups of welded blocks and welding parts 5 are positioned and installed in turn. After all the installation is completed, a robot is used for automatic welding. After all the blocks are welded, they are removed one by one.

Claims

1. A rotation positioning device for a robot welding block, characterized in that: It comprises a rotating connection chassis (1) and a bottom plate (2) vertically connected to the rotating connection chassis (1) and rotating together with the rotating connection chassis (1), the projection of the bottom plate (2) on the rotating connection chassis (1) passes through the center of the rotating shaft of the rotating connection chassis (1), and clamps for fixing the stopper (13) to be welded and the weldment (5) are provided on both sides of the bottom plate (2); The clamp comprises a first clamp unit for positioning and limiting a stopper (13) to be welded and a second clamp unit for fixing a welded part (5); The first fixture unit comprises: A positioning block (3) for fixing the stopper (13) to be welded on the base plate (2), A sliding column (6) for supporting the sliding of the positioning base block (3), which passes through the positioning base block (3) and has one end connected to the bottom plate (2), and the other end is provided with a flat washer (7) for limiting the positioning base block (3); The first fixture unit further comprises a circular gasket (10) for raising one end of the stopper (13) to be welded, wherein the circular gasket (10) is located between the bottom plate (2) and the stopper (13) to be welded; A positioning column is provided at one end of the stopper (13) to be welded, and a first locking bolt (12) and a positioning hole (14) cooperating with the positioning column are provided on the positioning base block (3). After the positioning column is inserted into the positioning hole (14), it is locked by the first locking bolt (12).

2. A rotation positioning device for a robot welding stopper according to claim 1, characterized in that: The positioning base block (3) is also provided with a handle (8).

3. A rotation positioning device for a robot welding block according to claim 1, characterized in that: The positioning hole (14) is a square hole.

4. The rotary positioning device for a robot welding stopper according to claim 1, characterized in that: The second clamp unit comprises a limit seat (9), the limit seat (9) is fixed on the base plate (2), and the welding piece (5) is mounted on the limit seat (9).

5. A rotation positioning device for a robot welding stopper according to claim 4, characterized in that: A spacer ring (4) is provided between the limiting seat (9) and the welding piece (5).

6. A rotation positioning device for a robot welding stopper according to claim 4, characterized in that: The limiting seat (9) is also provided with a second locking bolt (11) for fixing the stopper (13) to be welded.

7. The rotary positioning device for a robot welding stopper according to claim 1, characterized in that: Two clamps are respectively provided on both sides of the bottom plate (2).

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