Double-station welding robot

Abstract

The utility model provides a double-station welding robot, which relates to the technical field of welding robots and comprises a frame and a support, two ends of the support are respectively connected with two rotary tables through limiting devices, limiting grooves are arranged on two sides of the middle of each rotary table, accommodating grooves are arranged on two sides of the support, each limiting device comprises a connecting plate, and the connecting plates are connected with the connecting plates. Limiting pieces are fixedly connected to the two ends of the connecting plate and comprise fixing columns and drawing rods, the fixing columns are fixedly arranged in the containing grooves, the drawing rods are arranged in the fixing columns in a sliding mode, elastic pieces and blocking discs are arranged on the drawing rods, one ends of the drawing rods are fixedly connected with the connecting plate, and the other ends of the drawing rods are fixedly connected with limiting blocks. When the support needs to be replaced, the connecting plate is pulled, the connecting plate drives the drawing rod and the limiting block to leave the limiting groove till the limiting block stretches into the containing groove and moves towards one side or the upper portion, then the support can be taken down and replaced, and the support is convenient to disassemble and replace through the device.

Description

Technical Field

[0001] The utility model relates to the technical field of welding robots, in particular to a double-station welding robot. Background Art

[0002] Welding robots are industrial robots that perform welding (including cutting and spraying). According to the International Organization for Standardization's standard definition of industrial robots, they are multi-purpose, reprogrammable, automatically controlled manipulators with three or more programmable axes, used in industrial automation. A dual-station welding robot is a technology that simultaneously operates two welding stations on a single piece of welding equipment. Through intelligent robotic operation, the robot independently controls the power supply, gas source, filler material, and welding parameters for each station, enabling alternating or parallel welding.

[0003] Existing dual-station welding robots usually include a frame, a six-axis robot and a positioner. The six-axis robot and the positioner are arranged on the frame, and a bracket is arranged between the positioners. The workpiece to be welded is set on the bracket. In the above device, the bracket is usually welded to the rotary table inside the positioner. However, during the welding process, the bracket will also be worn out and needs to be replaced after wear and tear. The welding connection method is not convenient for disassembly and replacement.

[0004] Therefore, it is necessary to provide a new dual-station welding robot to solve the above-mentioned technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a dual-station welding robot.

[0006] The utility model provides a double-station welding robot comprising a frame and a bracket, wherein two six-axis robots are provided at two corners of one end of the frame, and two positioners are provided at two corners of the other end of the frame, wherein a driving member is provided in each of the two positioners, and the output shaft of the driving member is connected to a rotating table via a coupling. The utility model is characterized in that the two ends of the bracket are respectively connected to the two rotating tables via a limiting device;

[0007] Limiting grooves are provided on both sides of the middle part of the rotating table, and accommodating grooves are provided on both sides of the bracket. The limiting device includes a connecting plate, and both ends of the connecting plate are fixedly connected to the limiting parts. The limiting parts include a fixed column and a pull-out rod. The fixed column is fixedly set in the accommodating groove, and the pull-out rod is slidably set in the fixed column. An elastic part and a blocking disk are provided on the pull-out rod, and the two ends of the elastic part are respectively fixedly connected to one end of the inner cavity of the fixed column and the blocking disk. One end of the pull-out rod is fixedly connected to the connecting plate, and the other end of the pull-out rod is fixedly connected to the limiting block. The limiting block can extend into the limiting groove and the accommodating groove.

[0008] Preferably, the driving member is a motor, and the elastic member is a spring.

[0009] Preferably, the accommodating groove is configured to be wider on one side and narrower on the other side, and the accommodating groove is adapted to the fixing column and the pull rod.

[0010] Preferably, the output ends of the two six-axis robots are both provided with welding guns.

[0011] Preferably, each of the six-axis robots is elevated from the frame by a first mounting column, and each of the positioners is elevated from the bracket by a second mounting column.

[0012] Preferably, the coupling model is SERVO FLEX, and the six-axis robot model is BRTIRWD1506A.

[0013] Compared with the related technology, the double-station welding robot provided by the utility model has the following beneficial effects: the two ends of the double-station welding robot are respectively connected to the two rotating tables through the limit devices. After long-term use, the bracket will be worn out. When it reaches a certain level, the bracket needs to be replaced. Pull the connecting plates at both ends of the bracket, and the connecting plates drive the pull-out rod and the limit block to leave the limit groove until the limit block extends into the accommodating groove. The bracket can be removed and replaced by moving to one side or upward. The above device is relatively easy to operate and is convenient for disassembling and replacing the bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural diagram of a double-station welding robot provided by the utility model;

[0015] Figure 2 for Figure 1 Exploded view of the positioner and bracket shown;

[0016] Figure 3 for Figure 2 The structural diagram of A shown;

[0017] Figure 4 for Figure 3 A cutaway view of the stopper is shown.

[0018] Numbers in the figure: 1. Frame; 2. Six-axis robot; 3. Welding gun; 4. First mounting column; 5. Second mounting column; 6. Positioner; 7. Coupling; 8. Driving member; 9. Rotating table; 10. Connecting plate; 11. Bracket; 12. Limiting groove; 13. Accommodating groove; 14. Fixed column; 15. Pull rod; 16. Limiting block; 17. Blocking disk; 18. Elastic member. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0020] Please refer to Figures 1-4 ,in, Figure 1 This is a structural diagram of a double-station welding robot provided by the utility model; Figure 2 for Figure 1 Exploded view of the positioner and bracket shown; Figure 3 for Figure 2 The structural diagram of A shown; Figure 4 for Figure 3 A cutaway view of the stopper is shown.

[0021] In the specific implementation process, Figures 1-4 As shown, a dual-station welding robot includes a frame 1 and a bracket 11. Two six-axis robots 2 are provided at the two corners of one end of the frame 1, and two positioners 6 are provided at the two corners of the other end of the frame 1. A driving member 8 is provided in each of the two positioners 6. The output shaft of the driving member 8 is connected to a rotating table 9 through a coupling 7. The characteristic is that the two ends of the bracket 11 are respectively connected to the two rotating tables 9 through a limit device;

[0022] A limiting groove 12 is provided on both sides of the middle of the rotating table 9, and a receiving groove 13 is provided on both sides of the bracket 11. The limiting device includes a connecting plate 10, and the two ends of the connecting plate 10 are fixedly connected to the limiting member. The limiting member includes a fixed column 14 and a pull rod 15. The fixed column 14 is fixedly set in the receiving groove 13, and the pull rod 15 is slidably set in the fixed column 14. An elastic member 18 and a blocking disk 17 are provided on the pulling rod 15. The two ends of the elastic member 18 are respectively fixed to one end of the inner cavity of the fixed column 14 and the blocking disk 17 Connection, one end of the pull rod 15 is fixedly connected to the connecting plate 10, and the other end of the pull rod 15 is fixedly connected to the limit block 16. The limit block 16 can extend into the limit groove 12 and the accommodating groove 13. When the bracket 11 needs to be replaced, pull the connecting plates 10 at both ends of the bracket 11, and the connecting plates 10 drive the pull rod 15 and the limit block 16 to leave the limit groove 12. At this time, the spring is compressed until the limit block 16 extends into the accommodating groove 13, and then the bracket 11 is taken out to the side or upward to replace the bracket 11.

[0023] The driving member 8 is a motor, and a control instruction is sent to the motor through the peripheral control module, thereby realizing the flipping control of the workpiece on the positioner 6. The elastic member 18 is a spring.

[0024] The accommodating groove 13 is configured to be wide on one side and narrow on the other side, and the accommodating groove 13 is adapted to the fixing column 14 and the pull-out rod 15. The narrow side accommodating groove 13 is adapted to the pull-out rod 15, and the wide side accommodating groove 13 is adapted to the fixing column 14 and the limit block 16, which makes it easy to remove the bracket 11.

[0025] The output ends of the two six-axis robots 2 are both provided with welding guns 3, so that the automated welding work of the welded parts can be performed under the drive of the six-degree-of-freedom robotic arms.

[0026] Each six-axis robot 2 is raised from the frame 1 by a first mounting column 4 to avoid interference with the welding at the lowest position of the six-axis robot 2. Each positioner 6 is raised from the bracket 11 by a second mounting column 5 to avoid interference with the rotation of the bracket 11.

[0027] The model of the coupling 7 is SERVO FLEX, and the model of the six-axis robot 2 is BRTIRWD1506A.

[0028] The working principle provided by the present invention is as follows: during the specific implementation of the double-station welding robot, the workpiece to be welded is set on the bracket 11, the six-axis robot 2 is started, and the welding gun 3 connected to the output end of the six-axis robot 2 is used to weld it. During the welding process, the positioner 6 is started, and the control instruction is sent to the motor through the peripheral control module, so as to flip the workpiece to be welded on the bracket 11. After long-term use, when it is found that the bracket 11 is damaged and needs to be replaced, the connecting plates 10 at both ends of the bracket 11 are pulled, and the connecting plates 10 drive the pulling rod 15 and the limit block 16 to leave the limit groove 12. At this time, the spring is compressed until the limit block 16 extends into the accommodating groove 13, and then the bracket 11 is taken out to the side or upward to replace the bracket 11.

[0029] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0030] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A double-station welding robot, comprising a frame (1) and a bracket (11), wherein two six-axis robots (2) are provided at two corners of one end of the frame (1), and two positioners (6) are provided at two corners of the other end of the frame (1), and a driving member (8) is provided in each of the two positioners (6), and the output shaft of the driving member (8) is connected to a rotating table (9) through a coupling (7), characterized in that: The two ends of the bracket (11) are respectively connected to the two rotating platforms (9) through limiting devices; The rotating table (9) is provided with limiting grooves (12) on both sides of the middle part, and the bracket (11) is provided with accommodating grooves (13) on both sides. The limiting device includes a connecting plate (10), and the two ends of the connecting plate (10) are fixedly connected to the limiting member. The limiting member includes a fixed column (14) and a pull-out rod (15). The fixed column (14) is fixedly arranged in the accommodating groove (13), and the pull-out rod (15) is slidably arranged in the fixed column (14). An elastic member (18) and a blocking disk (17) are provided on the pull-out rod (15). The two ends of the elastic member (18) are fixedly connected to one end of the inner cavity of the fixed column (14) and the blocking disk (17) respectively. One end of the pull-out rod (15) is fixedly connected to the connecting plate (10), and the other end of the pull-out rod (15) is fixedly connected to the limiting block (16). The limiting block (16) can extend into the limiting groove (12) and the accommodating groove (13).

2. A dual-station welding robot according to claim 1, characterized in that: The driving member (8) is a motor, and the elastic member (18) is a spring.

3. A dual-station welding robot according to claim 2, characterized in that: The accommodating groove (13) is configured to be wider on one side and narrower on the other side, and the accommodating groove (13) is adapted to the fixing column (14) and the pulling rod (15).

4. A dual-station welding robot according to claim 3, characterized in that: The output ends of the two six-axis robots (2) are both provided with welding guns (3).

5. A dual-station welding robot according to claim 4, characterized in that: The height between each six-axis robot (2) and the frame (1) is increased by a first mounting column (4), and the height between each positioner (6) and the bracket (11) is increased by a second mounting column (5).

6. A dual-station welding robot according to claim 5, characterized in that: The coupling (7) is of model SERVO FLEX, and the six-axis robot (2) is of model BRTIRWD1506A.

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