CN211866948U

CN211866948U - Automobile body spot welding mechanical arm

Info

Publication number: CN211866948U
Application number: CN202020274603.1U
Authority: CN
Inventors: 杨唯巍
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-09
Filing date: 2020-03-09
Publication date: 2020-11-06
Anticipated expiration: 2030-03-09

Abstract

The utility model discloses an automobile body spot welding mechanical arm belongs to the car welding field. An automotive body spot welding robot arm comprising: the welding device comprises a base, a rotating arm, a plurality of welding guns, a driving mechanism and a rack; the rotating arm is rotatably connected with the base; the rack is fixedly arranged on the rotating arm; a sliding block is fixedly connected to the welding gun and is connected with the rack in a sliding manner, and the driving mechanism can drive the sliding block to move up and down; a check ring is fixedly connected to the side wall of the welding gun; a limiting plate is arranged below the welding gun and fixedly connected to the sliding block; the limiting plate is provided with a feeding channel, and the working end of the welding gun can pass through the feeding channel and extend out of the lower end of the limiting plate; and a vertically arranged elastic piece is connected between the limiting plate and the rack. Compared with the prior art, the automobile body spot welding mechanical arm can be adapted to various automobile body curves through simple adjustment.

Description

Automobile body spot welding mechanical arm

Technical Field

The utility model relates to an automobile welding field, concretely relates to car body spot welding arm.

Background

Welding is a process in which workpieces are joined to one another by the action of a filler material, either by heating or pressing, or both. In automobile manufacturing, different parts are welded in different processes, wherein seams among body parts such as a top cover, a door, a side wall and the like are mainly formed through spot welding.

Aiming at the existing welding process of the vehicle body, the welding rotating arm is mostly adopted in the existing manufacturing process for welding, but the existing rotating arm can not be automatically adjusted according to the arc line of the vehicle body, and the rotating arm needs to be manually adjusted or the control program of the rotating arm needs to be changed after different parts or vehicle types are changed.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides an automobile spot welding machinery solves the different automobile body pitch arc of spot welding arm can not automatically regulated adaptation in the prior art.

The purpose of the utility model can be realized by the following technical scheme:

an automotive body spot welding robot arm comprising: the welding device comprises a base, a rotating arm, a plurality of welding guns, a driving mechanism and a rack; the rotating arm is rotatably connected with the base; the rack is fixedly arranged on the rotating arm; a sliding block is fixedly connected to the welding gun and is connected with the rack in a sliding manner, and the driving mechanism can drive the sliding block to move up and down; a check ring is fixedly connected to the side wall of the welding gun;

a limiting plate is arranged below the welding gun and fixedly connected to the sliding block; the limiting plate is provided with a feeding channel, and the working end of the welding gun can pass through the feeding channel and extend out of the lower end of the limiting plate; and an elastic piece which is vertically arranged is connected between the limiting plate and the sliding block.

Further, still include temperature sensor and treater, temperature sensor fixed mounting in on the limiting plate, temperature sensor, welder and actuating mechanism all with treater electric connection.

Furthermore, the retainer ring comprises a first ring body, a second ring body and an adjusting screw, and the first ring body is fixedly connected with the welding gun; threaded holes are formed in the second ring body and the first ring body, the adjusting screws are matched with the threaded holes, and the adjusting screws are connected with the first ring body and the second ring body.

Furthermore, an elastic supporting block is fixedly connected below the limiting plate.

Further, the elastic member is a pneumatic spring.

Further, still include treater and distance sensor, distance sensor fixed mounting in on the slider, distance sensor and actuating mechanism all with treater electric connection.

Furthermore, an arc gathering ring is fixedly connected to the inner wall of the feeding channel.

The utility model has the advantages that:

the utility model discloses a spot welding arm is through setting up limiting plate, slider, frame and elastic component, and the interval between limiting plate and the slider is changeable, uses when a plurality of welder welding points are located the not welding seam of co-altitude, and the limiting plate that every welder corresponds all can press on the welding seam, provides location and direction for welder, improves welding efficiency and precision.

Drawings

The present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a schematic perspective view of a spot welding robot arm according to the present application;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

FIG. 3 is a schematic view showing the connection relationship between the components on the rack in the present application;

fig. 4 is a schematic diagram of electrical connection in the present application.

The parts corresponding to the reference numerals in the figures are as follows:

1. a base; 2. a rotating arm; 3. a welding gun; 4. a frame; 5. a slider; 6. a retainer ring; 61. a first ring body; 62. a second ring body; 7. a limiting plate; 8. a feed channel; 9. an elastic member; 10. a temperature sensor; 11. a processor; 12. an adjusting screw; 13. a distance sensor; 14. a convergent arc ring; 15. a drive mechanism.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "open hole", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", and the like, indicate positional or positional relationships, are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Referring to fig. 1 to 4, an automotive body spot welding robot is characterized by comprising: the welding device comprises a base 1, a rotating arm 2, a plurality of welding guns 3, a driving mechanism 15 and a rack 4; the rotating arm 2 is rotatably connected with the base 1; the frame 4 is fixedly arranged on the rotating arm 2; a sliding block 5 is fixedly connected to the welding gun 3, the sliding block 5 is connected with the rack 4 in a sliding mode, and the driving mechanism 15 can drive the sliding block 5 to move up and down; the side wall of the welding gun 3 is fixedly connected with a retainer ring 6. A limiting plate 7 is arranged below the welding gun 3, and the limiting plate 7 is fixedly connected to the sliding block 5; the limiting plate 7 is provided with a feeding channel 8, and the working end of the welding gun 3 can pass through the feeding channel 8 and extend out of the lower end of the limiting plate 7; an elastic piece 9 which is vertically arranged is connected between the limiting plate 7 and the sliding block 5.

Specifically, during welding, the rotating arm 2 rotates to move the frame 4 above the seam of the welded member, and the direction of the frame 4 is adjusted so that the stopper plate 7 of the frame 4 faces the seam. Then drive rotor arm 2 for each limiting plate 7 is successively pressed on the seam, because set up elastic component 9 between limiting plate 7 and the slider 5, consequently the interval between limiting plate 7 and the slider 5 is changeable, when using a plurality of welder 3 welding spot to be located the not welding seam of co-altitude, every welder 3 corresponding limiting plate 7 all can press on the seam, provides location and direction for welder 3, improves welding efficiency and precision.

The spot welding mechanical arm further comprises a temperature sensor 10 and a processor 11, the temperature sensor 10 is fixedly installed on the limiting plate 7, and the temperature sensor 10, the welding gun 3 and the driving mechanism 15 are all electrically connected with the processor 11. That is, the temperature sensor 10 can detect the temperature of the welding point, and when the temperature is higher than the preset value of the processor 11, the processor 11 turns off the welding gun 3 of the welding point, so as to prevent the welding point from overheating.

The retainer ring 6 comprises a first ring body 61, a second ring body 62 and an adjusting screw 12, wherein the first ring body 61 is fixedly connected with the welding gun 3; threaded holes are formed in the second ring body 62 and the first ring body 61, the adjusting screw 12 is matched with the threaded holes, and the adjusting screw 12 is connected with the first ring body 61 and the second ring body 62. Through the arrangement, an operator can adjust the height of the retainer ring 6 by rotating the adjusting screw 12.

The spot welding mechanical arm further comprises a processor 11 and a distance sensor 13, the distance sensor 13 is fixedly installed on the sliding block 5, and the distance sensor 13 and the driving mechanism 15 are both electrically connected with the processor 11. Through setting up distance sensor 13 and treater 11, distance sensor 13 measures the distance between slider 5 and the limiting plate 7 to export to treater 11, when the detected value is less than the predetermined distance in treater 11, treater 11 starts actuating mechanism 15, makes slider 5 upwards move, increases the distance between slider 5 and the limiting plate 7, makes limiting plate 7 have the space of further rising.

In addition, limiting plate 7 below fixed connection has the elasticity supporting shoe for limiting plate 7 bottom can more stably laminate and treat the machined surface. The elastic member 9 may be a pneumatic spring. Fixedly connected with arc gathering ring 14 on the inner wall of feed channel 8, through arc gathering ring 14, can further concentrate the arc that welder 3 exported, improve welding temperature.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims

1. A car body spot welding arm which characterized in that includes: the welding device comprises a base (1), a rotating arm (2), a plurality of welding guns (3), a driving mechanism (15) and a rack (4); the rotating arm (2) is rotatably connected with the base (1); the rack (4) is fixedly arranged on the rotating arm (2); a sliding block (5) is fixedly connected to the welding gun (3), the sliding block (5) is connected with the rack (4) in a sliding mode, and the driving mechanism (15) can drive the sliding block (5) to move up and down; a check ring (6) is fixedly connected to the side wall of the welding gun (3);

a limiting plate (7) is arranged below the welding gun (3), and the limiting plate (7) is fixedly connected to the sliding block (5); a feeding channel (8) is formed in the limiting plate (7), and the working end of the welding gun (3) can penetrate through the feeding channel (8) and extend out of the lower end of the limiting plate (7); and an elastic piece (9) which is vertically arranged is connected between the limiting plate (7) and the sliding block (5).

2. The automobile body spot welding mechanical arm is characterized by further comprising a temperature sensor (10) and a processor (11), wherein the temperature sensor (10) is fixedly installed on the limiting plate (7), and the temperature sensor (10), the welding gun (3) and the driving mechanism (15) are electrically connected with the processor (11).

3. The automotive body spot welding mechanical arm is characterized in that the retainer ring (6) comprises a first ring body (61), a second ring body (62) and an adjusting screw (12), wherein the first ring body (61) is fixedly connected with the welding gun (3); threaded holes are formed in the second ring body (62) and the first ring body (61), the adjusting screw (12) is matched with the threaded holes, and the adjusting screw (12) is connected with the first ring body (61) and the second ring body (62).

4. The automobile body spot welding mechanical arm is characterized in that an elastic supporting block is fixedly connected below the limiting plate (7).

5. A spot welding robot arm for car bodies according to claim 1, characterized in that said elastic member (9) is a pneumatic spring.

6. The automotive body spot welding mechanical arm is characterized by further comprising a processor (11) and a distance sensor (13), wherein the distance sensor (13) is fixedly installed on the sliding block (5), and the distance sensor (13) and the driving mechanism (15) are electrically connected with the processor (11).

7. A spot welding robot arm for car bodies according to claim 1, characterized in that a focus ring (14) is fixedly connected to the inner wall of said feed channel (8).