Welding protection equipment for industrial welding robot

Abstract

The utility model provides welding protection equipment for an industrial welding robot, which relates to the technical field of welding robot protection and comprises a pipe clamp, the bottom of the pipe clamp is connected with a fixed hinge through a connecting part, a connecting pin rod is inserted into the fixed hinge, and a positioning tooth piece is arranged at the tail end of the connecting pin rod. A spring is installed on the side, close to the connecting pin rod, of the positioning tooth piece, the outer side of the connecting pin rod is sleeved with a movable hinge, a protective surrounding plate is installed at the other end of the movable hinge, a balance weight strip is arranged on the surface of the protective surrounding plate, and an electromagnet is installed on the side, away from the fixed hinge, of the movable hinge. When the robot starts to work, the electromagnet releases magnetic force under the action of a signal to attract the connecting pin rod to one end of the movable hinge, and at the moment, the positioning tooth piece is meshed with the inner wall of the movable hinge to fix the movable hinge, so that the movable hinge and the fixed hinge cannot rotate freely; welding slag firstly contacts with the protective coaming during splashing.

Description

Technical Field

[0001] The utility model relates to the technical field of welding robot protection, in particular to welding protection equipment for an industrial welding robot. Background Art

[0002] An industrial robot is a multi-purpose, reprogrammable automatic control manipulator with three or more programmable axes. It is used in the field of industrial automation and can be connected to welding tongs or welding and cutting guns through the end-shaft flange at its end, so that it can perform welding, cutting or thermal spraying.

[0003] When existing industrial robots are performing welding work, the welding slag splashes and causes the welding slag to adhere to the joints of the robot or the exposed surface of the power line. The welding slag temperature is extremely high and becomes relatively hard after cooling. The joints of the robot are easily clumsy or stuck due to the adhesion of the welding slag. In addition, the external insulation of the exposed power line melts when it comes into contact with the high-temperature welding slag, and the exposure of the internal line is prone to short circuit, posing a major safety hazard. Utility Model Content

[0004] The purpose of the utility model is to solve the following problems existing in the prior art:

[0005] When existing industrial robots are performing welding work, the welding slag splashes and causes the welding slag to adhere to the joints of the robot or the exposed surface of the power line. The welding slag temperature is extremely high and becomes relatively hard after cooling. The joints of the robot are easily clumsy or stuck due to the adhesion of the welding slag. In addition, the external insulation of the exposed power line melts when it comes into contact with the high-temperature welding slag, and the exposure of the internal line is prone to short circuit, posing a major safety hazard.

[0006] In order to solve the problems existing in the prior art, the utility model provides an industrial welding robot welding protection device, including a pipe clamp, the bottom of the pipe clamp is connected to a fixed hinge through a connecting part, a connecting pin is inserted inside the fixed hinge, a positioning tooth is provided at the end of the connecting pin, a spring is installed on the side of the positioning tooth close to the connecting pin, a movable hinge is sleeved on the outer side of the connecting pin, a protective enclosure is installed on the other end of the movable hinge, a counterweight bar is provided on the surface of the protective enclosure, and an electromagnet is installed on the side of the movable hinge away from the fixed hinge.

[0007] The utility model provides a welding protection device for an industrial welding robot.

[0008] Furthermore, the fixed hinge and the movable hinge are both L-shaped, and the parts facing each other are cylindrical, and the connecting pin is located on the side of the cylindrical part of the fixed hinge close to the movable hinge.

[0009] Furthermore, a tooth hole adapted to the positioning tooth piece is arranged in the movable hinge, and the surface of the positioning tooth piece is convex in a conical shape, and a smooth part is arranged at the end.

[0010] Furthermore, one end of the spring is connected to the positioning tooth plate and the other end is connected to the fixed hinge, and the spring always remains in a contracted state.

[0011] Furthermore, the protective enclosure is an arc-shaped plate structure as a whole, with its opening direction facing the processing end of the welding robot, and a counterweight bar is arranged opposite to the processing end of the welding robot.

[0012] Furthermore, the counterweight bar is located on the side of the protective enclosure close to the bottom, and the overall weight is one third of the weight of the protective enclosure.

[0013] Furthermore, the electromagnet is composed of an output end and a control end, wherein the control end is mounted on the surface of the fixed hinge and the output end is mounted on the end of the cylindrical part of the movable hinge.

[0014] Furthermore, the control end of the electromagnet is connected to the start-stop power supply of the welding robot, and the magnetic pulling force of the output end of the electromagnet is greater than the pulling force of the spring.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The utility model is connected with the welding gun part of the welding robot through a pipe clamp, and the bottom protective enclosure is always kept in a drooping state under the action of the counterweight bar, shielding between the welding gun and the robot body, and the movable hinge and the fixed hinge can rotate freely at this time. When the robot starts to work, the electromagnet releases the magnetic force to attract the connecting pin to one end of the movable hinge after receiving the signal, and the positioning tooth piece at the end of the movable hinge engages with the inner wall of the movable hinge to fix the movable hinge, so that the position between the movable hinge and the fixed hinge is fixed and cannot rotate freely. At this time, the protective enclosure between the robot and the welding gun is fixed in a vertical state to shield the welding gun. The welding slag generated by the welding gun during work will first contact the protective enclosure when splashing, and will not contact the robot, thereby reducing the overall failure probability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the protective enclosure of the utility model;

[0019] Figure 3 This is a schematic diagram of a fixed hinge of the utility model;

[0020] Figure 4 It is a schematic diagram of the link pin rod of the utility model;

[0021] Figure numerals: 1. pipe clamp; 2. fixed hinge; 3. connecting pin; 4. positioning tooth plate; 5. spring; 6. movable hinge; 7. protective enclosure; 8. counterweight bar; 9. electromagnet. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects of the utility model easy to understand, the utility model is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0023] The specific embodiments of the present utility model are described below in conjunction with the accompanying drawings.

[0024] Example 1

[0025] like Figure 1-4 As shown, an industrial welding robot welding protection device comprises a pipe clamp 1, the bottom of the pipe clamp 1 is connected to the fixed hinge 2 through a connecting part, a connecting pin rod 3 is inserted inside the fixed hinge 2, a positioning tooth piece 4 is arranged at the end of the connecting pin rod 3, a spring 5 is installed on the side of the positioning tooth piece 4 close to the connecting pin rod 3, one end of the spring 5 is connected to the positioning tooth piece 4 and the other end is connected to the fixed hinge 2, and the spring 5 always keeps a contracted state, a movable hinge 6 is sleeved on the outer side of the connecting pin rod 3, the fixed hinge 2 and the movable hinge 6 are both L-shaped, and the opposite side parts thereof are cylindrical, the connecting pin rod 3 is located on the side of the cylindrical part of the fixed hinge 2 close to the movable hinge 6, a tooth hole matched with the positioning tooth piece 4 is avoided in the movable hinge 6, and the surface protrusion of the positioning tooth piece 4 is conical, and the end A smooth part is provided at the end, and a protective panel 7 is installed at the other end of the movable hinge 6. A counterweight bar 8 is provided on the surface of the protective panel 7. The protective panel 7 is an arc-shaped plate structure as a whole, and its opening direction is toward the processing end of the welding robot, and a counterweight bar 8 is provided away from the processing end of the welding robot. The counterweight bar 8 is located on the side of the protective panel 7 close to the bottom, and the overall weight is one third of the weight of the protective panel 7. An electromagnet 9 is installed on the side of the movable hinge 6 away from the fixed hinge 2. The electromagnet 9 consists of an output end and a control end, wherein the control end is installed on the surface of the fixed hinge 2 and the output end is installed at the end of the cylindrical part of the movable hinge 6. The control end of the electromagnet 9 is connected to the start-stop power supply of the welding robot, and the magnetic pulling force of the output end of the electromagnet 9 is greater than the pulling force of the spring 5.

[0026] Working principle description: First, when in use, the pipe clamp 1 is connected to the welding gun part of the welding robot. The bottom protective enclosure 7 is always kept in a drooping state under the action of the counterweight bar 8, shielding between the welding gun and the robot body, and the movable hinge 6 and the fixed hinge 2 can rotate freely at this time. When the robot starts working, the electromagnet 9 receives a signal to release the magnetic force to attract the connecting pin 3 to one end of the movable hinge 6. The positioning tooth piece 4 at the end of the movable hinge 6 engages with the inner wall of the movable hinge 6 to fix the movable hinge 6, so that the position between the movable hinge 6 and the fixed hinge 2 is fixed and cannot rotate freely. At this time, the protective enclosure 7 between the robot and the welding gun is fixed and kept in a vertical state to shield the welding gun;

[0027] After the welding work is completed, the electromagnet 9 loses its signal magnetic force, the positioning tooth piece 4 loses the electromagnet 9 and the limiting spring 5 pulls the positioning tooth piece 4 back to its original position, and the movable hinge 6 loses its fixation and can rotate.

[0028] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A welding protection device for an industrial welding robot, comprising a pipe clamp (1), characterized in that: The bottom of the pipe clamp (1) is connected to the fixed hinge (2) through a connecting part, a connecting pin (3) is inserted into the fixed hinge (2), a positioning tooth piece (4) is arranged at the end of the connecting pin (3), a spring (5) is installed on the side of the positioning tooth piece (4) close to the connecting pin (3), a movable hinge (6) is sleeved on the outside of the connecting pin (3), a protective enclosure (7) is installed on the other end of the movable hinge (6), a counterweight bar (8) is arranged on the surface of the protective enclosure (7), and an electromagnet (9) is installed on the side of the movable hinge (6) away from the fixed hinge (2).

2. The welding protection device for an industrial welding robot according to claim 1, characterized in that: The fixed hinge (2) and the movable hinge (6) are both L-shaped, and the parts facing each other are cylindrical. The connecting pin (3) is located on the side of the cylindrical part of the fixed hinge (2) close to the movable hinge (6).

3. The welding protection device for an industrial welding robot according to claim 1, characterized in that: The movable hinge (6) is provided with a tooth hole adapted to the positioning tooth piece (4), and the surface of the positioning tooth piece (4) is convex in a conical shape, and a smooth portion is provided at the end.

4. The welding protection device for an industrial welding robot according to claim 1, characterized in that: One end of the spring (5) is connected to the positioning tooth plate (4) and the other end is connected to the fixed hinge (2), and the spring (5) always remains in a contracted state.

5. The welding protection device for an industrial welding robot according to claim 1, characterized in that: The protective enclosure (7) is an arc-shaped plate structure as a whole, with its opening direction facing the processing end of the welding robot, and a counterweight bar (8) is arranged facing away from the processing end of the welding robot.

6. The welding protection device for an industrial welding robot according to claim 1, characterized in that: The counterweight bar (8) is located on one side of the protective enclosure (7) close to the bottom, and its overall weight is one third of the weight of the protective enclosure (7).

7. The welding protection device for an industrial welding robot according to claim 2, characterized in that: The electromagnet (9) consists of an output end and a control end, wherein the control end is mounted on the surface of the fixed hinge (2) and the output end is mounted on the end of the cylindrical part of the movable hinge (6).

8. The welding protection device for an industrial welding robot according to claim 7, characterized in that: The control end of the electromagnet (9) is connected to the start / stop power supply of the welding robot, and the magnetic pulling force of the output end of the electromagnet (9) is greater than the pulling force of the spring (5).

Images