CN218362563U - Five robot laser welding structures - Google Patents

Abstract

The utility model provides a five-axis robot laser welding structure, which comprises a five-axis robot, wherein the tail end of the five-axis robot is provided with a wrist part which is annular and is provided with a laser welding gun by penetrating through the wrist part; the wrist is provided with a driving element or a transmission element in transmission connection with a fifth shaft of the five-shaft robot so that the wrist can do rotary motion; the wrist part is provided with a wire feeding mechanism towards the working end of the laser welding gun so that the wire feeding mechanism can rotate around the laser welding gun under the driving of the wrist part; a six-axis robot or a five-axis robot additionally provided with a sixth axis is taken as a prototype, the sixth axis rotary execution end of the robot is used for installing a wire feeding mechanism, and the fifth axis of the robot is provided with a laser welding gun, so that the wire feeding mechanism of the utility model can rotate 360 degrees around the laser welding gun; the control command of cooperation control center can independently adjust wire feeding mechanism's a silk angle and gesture, compares in prior art follow-up operating condition more nimble adjustable, and application scope is wider and the interference risk is little.

Description

Five robot laser welding structures

Technical Field

The utility model belongs to the technical field of the robot laser welding technique and specifically relates to a five robot laser welding structures.

Background

With the increasing development of laser welding technology, the laser welding technology has the advantages of simple operation, small deformation, high welding speed, high efficiency, smooth and attractive welding line, no need of treatment or simple treatment after welding and the like, and is widely applied to the welding process industry; in order to further improve the laser welding efficiency, most welding robot manufacturers install a laser welding gun at the tail end of a robot for use, namely, the robot is matched with the robot to work in multiple postures in space, and efficient welding is carried out to replace manual handheld laser welding.

However, for an application scenario requiring wire-filling welding, most manufacturers generally install a laser welding gun at the end of a robot for use, and a wire feeding rod for performing a wire feeding function can only be installed on the laser welding gun because of no proper installation position, and the wire feeding rod and the laser welding gun are synchronously followed, and the wire feeding rod cannot rotate independently in an actual welding process, so that the wire feeding angle is single, and in order to find a better wire feeding angle, the posture of the laser welding gun needs to be controlled to drive the wire feeding angle, so that the risk of interference between the laser welding gun and the workpiece and the wire feeding rod need to be avoided at the same time, and the operation difficulty is increased accordingly.

SUMMERY OF THE UTILITY MODEL

This application provides a five-axis robot laser welding structure rational in infrastructure to shortcoming among the above-mentioned prior art to when five-axis robot end execution end installation laser welder, avoid sending a pole follow-up in laser welder's work orbit, make send a pole to carry out 360 degrees rotations around laser welder and send a.

The utility model discloses the technical scheme who adopts as follows:

a laser welding structure of a five-axis robot comprises the five-axis robot, wherein the tail end of the five-axis robot is provided with a wrist part, the wrist part is annular, and a laser welding gun is arranged on the wrist part in a penetrating mode; the wrist is provided with a driving element or a transmission element connected with the fifth shaft transmission of the five-shaft robot so that the wrist can do rotary motion; the wrist is provided with a wire feeding mechanism towards the working end of the laser welding gun so that the wire feeding mechanism can rotate around the laser welding gun under the driving of the wrist.

Furthermore, the wire feeding mechanism comprises an installation part fixedly arranged on the surface of the wrist part, the surface of the installation part is connected with a first clamping part for increasing the axial distance, an extension part for increasing the longitudinal distance is arranged below the first clamping part, the tail end of the extension part is movably connected with a second clamping part through an adjusting block, the second clamping part is provided with a through hole, and a wire feeding rod is fixedly arranged in the through hole.

Furthermore, the screw feeding rod is obliquely arranged, and the screw outlet end of the screw feeding rod is intersected with the welding end of the laser welding gun at one point.

Further, the mounting member is a flange.

Furthermore, the laser welding gun is connected with the wrist through a mounting disc arranged on the back of the wrist.

The beneficial effects of the utility model are as follows:

1. the utility model arranges the sixth shaft at the end executing end of the five-shaft robot, or uses the fifth shaft of the six-shaft robot as the executing end; the laser welding gun is arranged on the fifth shaft wrist, the wire feeding rod is arranged on a six-shaft end flange of the robot, and the wire feeding rod rotates 360 degrees around the laser welding gun head to feed wires, so that the problems that the posture is difficult to adjust and the interference risk is large due to the follow-up of the wire feeding rod and the welding gun in the prior art are solved;

2. the interference risk is little, application range is wide: therefore, the wire feeding rod can rotate 360 degrees around the laser welding gun head to feed wires, when a plurality of workpieces in small space are welded, the wire feeding angle is large, interference points can be effectively avoided, the interference risk is small, and the application range is wide;

3. small-angle continuous welding: when the corner points of some small-angle workpieces are welded, the laser welding gun does not need to stop to change a better wire feeding posture, and the design structure of the rotatable wire feeding rod can independently finish the wire feeding more quickly, so that the wire feeding angle can be better obtained for wire feeding, and the small-angle continuous welding can be realized;

4. the work efficiency is high: the designed wire feeding rod rotating structure can change more effective angles around the laser welding gun head to feed wires and avoid interference during welding, so that continuous welding can be realized in the welding process, and the working efficiency is improved.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

fig. 3 is a perspective view of the internal structure of the wrist part in fig. 1.

Wherein: 1. a five-axis robot; 2. a wrist portion; 3. a laser welding gun; 4. a wire feeder; 41. a mounting member; 42. a first clamping member; 43. an extension member; 44. a regulating block; 45. a second clamping member; 46. a screw feeding rod; 5. and (7) mounting a disc.

Detailed Description

In order to make the purpose, technical scheme and advantage of the technical scheme of the utility model clearer, will combine the drawings of the specific embodiment of the utility model hereafter, it is right that the technical scheme of the embodiment of the utility model is clear, completely described. Like reference symbols in the various drawings indicate like elements; it should be noted that the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.

The following describes embodiments of the present invention with reference to the drawings.

Please refer to fig. 1, fig. 2 and fig. 3:

example 1: the embodiment provides an implementation mode of a laser welding structure of a five-axis robot, which comprises a five-axis robot 1, wherein a wrist part 2 is arranged at the tail end of the five-axis robot 1, the wrist part 2 is annular, and a laser welding gun 3 is arranged on the wrist part 2 in a penetrating manner; the wrist 2 is provided with a driving element or a transmission element in transmission connection with a fifth shaft of the five-shaft robot 1 so as to enable the wrist 2 to do rotary motion; in other words, the sixth shaft can be obtained by providing a servo motor and a speed reducer on the fifth shaft without the rotation motion of the sixth shaft so as to have the sixth shaft, and by providing a transmission component such as a worm gear and a worm to be in transmission connection with the driving component at the end of the small arm;

the wrist 2 is provided with a wire feeder 4 towards the working end of the laser torch 3 so that the wire feeder 4 is driven by the wrist 2 to perform a rotational movement around the laser torch 3.

The wire feeding mechanism 4 comprises a mounting part 41 fixedly arranged on the surface of the wrist part 2, a first clamping part 42 for increasing the axial distance is connected to the surface of the mounting part 41, an extension part 43 for extending the longitudinal distance is arranged below the first clamping part 42, the tail end of the extension part 43 is movably connected with a second clamping part 45 through an adjusting block 44, the second clamping part 45 is provided with a through hole, and a wire feeding rod 46 is fixedly arranged in the through hole.

The feed screw 46 is arranged obliquely and the screw outlet end of the feed screw intersects the welding end of the laser welding gun 3 at a point.

The mounting member 41 is a flange fixedly provided below the wrist portion 2 for mounting the wire feeding mechanism 4.

The laser welding gun 3 is connected with the wrist 2 through a mounting disc 5 arranged on the back of the wrist 2.

Example 2:

the structure for laser welding of the five-axis robot 1 based on the six-axis robot is provided; the robot comprises a six-axis robot, wherein the sixth axis tail end of the six-axis robot is a wrist part 2, the wrist part 2 is annular, and a laser welding gun 3 is arranged on the wrist part 2 in a penetrating manner; the wrist 2 is provided with a wire feeder 4 facing the working end of the laser welding torch 3 so that the wire feeder 4 can perform a rotational movement around the laser welding torch 3 by the rotational driving of the wrist 2.

The wire feeding mechanism 4 comprises a mounting part 41 fixedly arranged on the surface of the wrist part 2, the mounting part 41 is a flange, the lower surface of the flange is connected with a first clamping part 42 for increasing the axial distance, an extension part 43 for extending the longitudinal distance is arranged below the first clamping part 42, the tail end of the extension part 43 is movably connected with a second clamping part 45 through an adjusting block 44, the second clamping part 45 is provided with a through hole, and a wire feeding rod 46 is fixedly arranged in the through hole.

The wire feeding rod 46 is obliquely arranged, and the wire outlet end of the wire feeding rod intersects with the welding end of the laser welding gun 3 at one point, so that the wire can be fed around the laser welding gun 3360 degrees in the laser welding work.

The laser welding gun 3 is connected with the wrist 2 through a mounting disc 5 arranged on the back surface of the wrist 2.

It should be noted that: in the above embodiment, the first clamping member 42 and the second clamping member 45 each include, but are not limited to, a clamping block, and the extension member 43 includes, but is not limited to, an extension rod.

The utility model discloses a theory of operation:

the six-axis robot or the five-axis robot 1 additionally provided with the sixth axis is taken as a prototype, the sixth axis rotary execution end of the six-axis robot is used for installing the wire feeding mechanism 4, and the fifth axis of the six-axis robot is provided with the laser welding gun 3, so that the wire feeding mechanism 4 of the utility model can rotate around the laser welding gun 3360 degrees; the wire feeding angle and the wire feeding posture of the wire feeding mechanism 4 can be independently adjusted by matching with a control instruction of a control center, and the follow-up working state is more flexible compared with the follow-up working state in the prior art; therefore, the wire feeding rod 46 can be changed more quickly and effectively to feed wires, so that the process requirement of continuous welding at small angles can be met without changing the posture of the laser welding gun 3 when welding workpieces with too small angles, the product qualification rate is improved, and the working efficiency is also improved. And when the welding operation in the work piece that the space is narrow, send a multi-angle rotating of wire rod 46 to send and also can reduce by a wide margin and interfere the risk for application range is wider, and the result of use is better.

The above description is for the purpose of explanation and not limitation of the invention, which is defined in the claims, and any modifications may be made within the scope of the invention.

Claims (5)

1. The utility model provides a five-axis robot laser welding structure, includes five-axis robot (1), its characterized in that: the tail end of the five-axis robot (1) is provided with a wrist part (2), the wrist part (2) is annular, and a laser welding gun (3) is arranged on the wrist part (2) in a penetrating mode; the wrist (2) is provided with a driving element or a transmission element in transmission connection with a fifth shaft of the five-shaft robot (1) so that the wrist (2) can rotate; the wrist (2) is provided with a wire feeding mechanism (4) towards the working end of the laser welding gun (3) so that the wire feeding mechanism (4) can rotate around the laser welding gun (3) under the driving of the wrist (2).

2. The five-axis robot laser welding structure according to claim 1, characterized in that: wire feeder (4) including setting firmly installed part (41) on wrist (2) surface, installed part (41) surface connection sets up first holder (42) of extension axial distance, the below of first holder (42) sets up extension piece (43) of extension longitudinal distance, the end of extension piece (43) is through regulating block (44) swing joint second holder (45), second holder (45) have the through-hole, lead screw (46) are sent to the through-hole internal setting.

3. The five-axis robot laser welding structure according to claim 2, characterized in that: the screw feeding rod (46) is obliquely arranged, and the screw outlet end of the screw feeding rod and the welding end of the laser welding gun (3) are intersected at one point.

4. The five-axis robot laser welding structure of claim 2, wherein: the mounting piece (41) is a flange.

5. The five-axis robot laser welding structure according to claim 1, characterized in that: the laser welding gun (3) is connected with the wrist (2) through a mounting disc (5) arranged on the back of the wrist (2).

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