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Arc welding system and wire-feeding device

An arc welding and feeding device technology, applied in arc welding equipment, welding equipment, manufacturing tools, etc., can solve the problems of increasing the feeding load and unable to feed the welding wire, and achieve the effect of suppressing fluctuations

Active Publication Date: 2018-10-23
DAIHEN CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, depending on the distance and arrangement between the welding wire supply source and the welding torch, the feed load such as feed resistance and inertia applied to the welding wire during feeding becomes larger. The problem of high-speed and stable feeding of welding wire to the welding torch

Method used

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  • Arc welding system and wire-feeding device
  • Arc welding system and wire-feeding device
  • Arc welding system and wire-feeding device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0060] figure 1 is a schematic diagram showing a configuration example of the arc welding system according to Embodiment 1, figure 2 It is a schematic diagram showing a configuration example of the intermediate wire supply source 41 according to the first embodiment. The arc welding system according to this embodiment is a consumable electrode type gas-shielded arc welding machine capable of butt welding a base material A having a plate thickness of 9 mm to 30 mm in a single pass, and includes a welding robot 1 and a robot control device 2 , a welding wire supply source 3 , a welding wire feeding device 4 and a power supply device 5 .

[0061] The welding robot 1 automatically performs arc welding of the base material A. The welding robot 1 includes a base 11 fixed to a suitable place on the ground. A plurality of arms 12 are rotatably coupled to the base portion 11 via a not-shown shaft portion. A welding torch 13 is held at a front end portion of an arm 12 connected to ...

Embodiment approach 2

[0122] Another example of the intermediate wire supply source 141 suitable for high-speed feeding of the welding wire W will be described.

[0123] Figure 8 It is a schematic diagram showing a configuration example of the intermediate wire supply source 141 according to the second embodiment. The intermediate welding wire supply source 141 according to the second embodiment has the same casing 141a as that in the first embodiment, and an inlet for introducing the welding wire W supplied from the welding wire supply source 3 from the horizontal direction (first direction) is formed on the side surface of the casing 141a. In the portion 141b, an outlet portion 141c is formed on the upper surface of the case 141a to feed the welding wire W accommodated inside the case 141a vertically upward intersecting the horizontal direction. The welding wire W pulled into the casing 141a is accommodated in a state of being bent in an arc shape between the inlet portion 141b and the outlet p...

Embodiment approach 3

[0128] A suitable configuration example of the power supply device 5 capable of outputting a large current will be described.

[0129] Figure 9 It is a block diagram showing a configuration example of the power supply device 5 according to the third embodiment. The power supply device 5 according to Embodiment 3 includes a plurality of power supplies 8 connected in parallel to a common load related to arc welding, and supplying power to the load. The respective power sources 8 are connected by communication lines. The plurality of power supplies 8 are isolated switching power supplies, which convert alternating current AC / DC into required direct current, and supply the converted direct current to the load.

[0130] One power supply 8 among the plurality of power supplies 8 functions as a main power supply that controls the output of each power supply 8 by transmitting PWM control information to the other power supplies 8 via a communication line. The other power supply 8 f...

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Abstract

A consumable-electrode-type arc welding system is provided with a wire-feeding device (4) for feeding a welding wire (W) from a wire supply source (3) to a welding torch (13), and a power source device (5) for supplying electric power between the welding wire (W) fed to the welding torch (13) and a parent material (A). The parent material (A) is welded by an arc generated by the supplied electricpower. The wire-feeding device (4) is provided with: a central wire supply source (41) disposed between the wire supply source (3) and the welding torch (13), the central wire supply source (41) temporarily accommodating the welding wire (W) supplied from the wire supply source (3) and supplying the accommodated welding wire (W) to the welding torch (13); a drawing feeding unit (41d) for feeding the welding wire (W) of the wire supply source (3) to the central wire supply source (41); and an extruding feeding unit (42) for feeding the welding wire (W) accommodated by the central wire supply source (41) to the welding torch (13).

Description

technical field [0001] The invention relates to a consumable electrode arc welding system and a welding wire feeding device. Background technique [0002] A consumable electrode type arc welding system includes: a wire feeding device that feeds a welding wire from a wire supply source to a welding torch; and a power supply device. The welding wire feeding device includes: a pull-out feed roller for drawing welding wire from a welding wire supply source such as a wire drum or a packaged wire; Push out the feed roller. The pull-out feed roller and the push-out feed roller are connected by a guide wire through which the fed welding wire is inserted, and the welding wire is guided to the guide wire and fed to the welding torch. The arc welding system feeds the welding wire to the welding torch by controlling the rotation of the pull-out feed roller and the push-out feed roller, and generates an arc by supplying electric power between the welding wire and the base metal, and we...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/12B23K9/073B23K9/133
CPCB23K9/092B23K9/1062B23K9/1075B23K9/133B23K9/125B23K9/073B23K9/124B23K9/0732B23K9/1336
Inventor 井上雅博森田幸也宫原寿朗河合宏和候松杰马场勇人盐崎秀男惠良哲生上山智之
Owner DAIHEN CORP