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Seam welding robot

A technology of robots and robot arms, applied in the field of seam welding robots, can solve the problems of complicated robot motion control and so on

Active Publication Date: 2014-03-26
YASKAWA DENKI KK +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the motion control of the robot is complicated

Method used

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Examples

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no. 1 approach ）

[0023] figure 1 It is a perspective schematic explanatory drawing which shows the seam welding robot 1 which concerns on 1st Embodiment. Such as figure 1 As shown, the seam welding robot 1 includes a robot arm 2 , a welding unit 3 and a robot controller 4 . The welding part 3 is connected to the front end side of the robot arm 2 . The welding part 3 performs seam welding on the object to be welded (object to be welded).

[0024] Although in figure 1 It is omitted in , but the seam welding robot 1 also includes a welding power source for supplying welding current to the welding part 3 . In addition to the welding unit 3 , the welding power source is also connected to the robot controller 4 . When performing seam welding, the welding power source supplies welding current to the welding part 3 according to an instruction from the robot controller 4 . This welding current is supplied based on welding conditions previously set and stored in the welding power source.

[0025]...

no. 2 approach ）

[0070] Next, refer to Image 6 and Figure 7 A seam welding robot 1a according to a second embodiment will be described. In this embodiment, for Image 6 and Figure 7 Among the components shown in the image 3 or Figure 5 Constituents that are the same as those shown are given the same image 3 or Figure 5 The symbols shown are the same symbols, and descriptions thereof are omitted.

[0071] Image 6 It is a schematic explanatory drawing which shows the front-end|tip part of the robot arm 2 in the seam welding robot 1a of 2nd Embodiment. also, Image 6 The side surface of the welding part 3 viewed from the rear in the welding advancing direction is schematically shown. Figure 7 It is a top schematic explanatory drawing which shows the operation|movement of the seam welding robot 1a of 2nd Embodiment.

[0072] Such as Image 6As shown, the seam welding robot 1a of the second embodiment includes a welding unit 3 almost the same as that of the first embodiment. H...

no. 3 approach ）

[0082] Below, refer to Figure 8 and Figure 9 A seam welding robot 1b according to a third embodiment will be described. In this embodiment, for Figure 8 and Figure 9 Among the components shown in the figure 2 or Figure 5 Constituents that are the same as those shown are given the same figure 2 or Figure 5 The symbols shown are the same symbols, and descriptions thereof are omitted.

[0083] Figure 8 It is a schematic explanatory drawing which shows the front-end|tip part of the robot arm 2 in the seam welding robot 1b of 3rd Embodiment. also, Figure 8 It schematically shows the front of the welding part 3 viewed from the left side in the welding advancing direction. Figure 9 It is a top schematic explanatory drawing which shows the operation|movement of the seam welding robot 1b of 3rd Embodiment.

[0084] Such as Figure 8 As shown, the seam welding robot 1b of the third embodiment is equipped with the welding part 3 which is almost the same as that of ...

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Abstract

The present invention provides a seam welding robot including a robot arm and a welding unit that is coupled to the robot arm. The welding unit includes a pair of roller electrodes. The pair of roller electrodes rotates following motion of the robot arm while sandwiching and pressurizing welding targets. The welding unit passes a welding electric current between the pair of roller electrodes to seam-weld the welding targets.

Description

[0001] Cross References to Related Applications [0002] This application is based on Japanese Patent Application No. 2012-196465 submitted to the Japan Patent Office on September 06, 2012, and therefore the entire content of said Japanese Patent Application is incorporated herein by reference. technical field [0003] The invention relates to a seam welding robot. Background technique [0004] In the seam welding robot system, a welding device is provided on the front end side of the robot arm. This welding device performs seam welding on an object to be welded (object to be welded) (for example, refer to JP-A-2007-167896). Such a welding device includes: two disc-shaped roller electrodes; and a motor that rotates each roller electrode. [0005] The welding device pressurizes the object to be welded while clamping the peripheral parts of the two roller electrodes. In this state, the two roller electrodes are rotated by the motor. The welding device performs seam welding...

Claims

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Application Information

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IPC IPC(8): B23K11/06
CPCB23K11/063B23K11/061
Inventor 中仓雅美园田哲平冈久学
Owner YASKAWA DENKI KK
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