Squitter pulse welding method

A pulse welding and post-welding technology, used in welding equipment, arc welding equipment, manufacturing tools, etc., can solve the problems of burn-through of base metal and increase of line energy, and achieve the effect of improving appearance and suppressing line energy.

Active Publication Date: 2009-06-24
DAIHEN CORP
View PDF6 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, in order to form a wide weld seam, it is necessary to weld with a large welding current or a long welding time, but in this case, the base metal of the thin plate burns through due to the increase in the input energy.
That is, there is a problem that a wide weld seam cannot be formed in intermittent pulse welding

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Squitter pulse welding method
  • Squitter pulse welding method
  • Squitter pulse welding method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0126] Hereinafter, embodiments of the invention will be described based on examples with reference to the drawings.

[0127] figure 1 It is a block diagram of the intermittent pulse welding device 1 to which the intermittent pulse welding method according to the present invention is applied. In this figure, with the prior art Figure 13 The difference lies in the robot controller RC and the teaching operation panel TP as the operating unit. The other manipulator M, welding power source AP, wire spool 56, gas tank 58, etc., which have been described in the prior art, are not shown and omitted. Hereinafter, the robot controller RC and the teaching operation panel TP constituting the main parts of the present invention will be described.

[0128] The robot control device RC is used to control the welding operation of the manipulator M, and is provided with: a main control unit 3 serving as a central pivot, an operation control unit that performs orbit calculations of the manipulat...

Embodiment approach 2

[0160] Next, the second embodiment of the present invention will be described. In the first embodiment, the welding track is generated on the work line direction side of the work position Pn, but in the second embodiment, the welding track is generated around the work position Pn.

[0161] Figure 6 This is a diagram showing how a circular welding track is generated around the work position Pn in the second embodiment. In this figure, and Figure 4 The difference is that the working position Pn is used as the center position Cc' of the circular welding track Kc'. Others are the same as the first embodiment, so the description is omitted.

[0162] The circular welding track Kc' is generated as follows. First, using the work position Pn as the center position Cc', a circular orbit having a circle radius value Cr in the YZ plane is calculated. After that, on the circular orbit, the welding start and end position Wp' is calculated at a position away from the circle radius value Cr fr...

Embodiment approach 3

[0178] Next, the third embodiment of the present invention will be described. In the first and second embodiments, the circular welding track Kc (Kc') or the elliptical welding track Kd (Kd') is generated on the work line direction side of the work position Pn or around the work position Pn. However, in the third embodiment, the following The working position Pn is a spiral welding track that spirally rotates toward the outside.

[0179] Picture 9 This is a diagram used to illustrate the spiral welding track. This figure is a view of the YZ plane of the welding line coordinate system described in Embodiment 1 viewed from the X+ direction, and shows how the spiral welding track Kr is drawn on the YZ plane. In this figure, the working position Pn, the working line L, the working line direction Dr, and the rotation direction Rd are related to Figure 4 The parts assigned with the same symbols are the same, so the description is omitted.

[0180] The spiral welding track Kr shown in...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The present invention provides an interrupting pulse welding method capable of forming wide welding seam. According to the method, an arc welding torch (T) welds again at next operation position away from preset move distance after the torch (T) is moved and weld at an operation position on work line (L), such that welding marks formed at each operation position overlap and the welding marks are formed on the work piece (W), welding tracks (Kc) are formed in preset area including operation position (Pn) and having preset width in operation lien direction (Dr) and direction orthorhombic to theoperation line (L), a front end of the arc welding torch (T) moves along the welding tracks (Kc) at same time of welding. The welding tracks (Kc) are round or elliptical or spiral welding tracks, andare generated according to patterns selected from preset track patterns. Wide welding marks may be obtained by forming welding marks with the welding tracks (Kc) at each operation position.

Description

Technical field [0001] The present invention relates to a stitch pulse (stitch pulse, ステツチパルス) welding method for welding while suppressing the thermal influence on the base material of a thin plate to a minimum. Background technique [0002] The so-called intermittent pulse welding refers to a welding method that controls the heat input and cooling during welding to minimize the thermal effect on the base material. This is a welding method for the purpose of automating thin plate welding. Compared with the conventional thin plate welding, the welding appearance can be improved and the amount of welding deformation can be reduced (for example, refer to Patent Document 1). [0003] Patent Document 1 discloses that the arc is generated for a predetermined time while the arc welding torch is stopped and the base material is melted. After the set time has elapsed, the arc is stopped and the arc welding torch is moved to the outer peripheral side of the melting part. The method of sta...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/09
Inventor 广田周吾上园敏郎中津川勇二
Owner DAIHEN CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap