Double-handpiece column roller overlaying welding machine tool

A column-type, double-head technology, applied in the field of surfacing welding machine tools, can solve the problems of high heat source temperature, uneven weld bead width, small bed size, etc., achieve uniform weld width, improve surfacing welding quality, and machine The effect of smooth head walking

Inactive Publication Date: 2009-04-15
DALIAN XINZHONG GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are technical problems in the process of use. First, the traveling system of the welding machine is relatively close to the heat source. Due to the high heat generated by submerged arc welding and the high temperature around the heat source, the traveling system is prone to failure; the second is that the rubber wheels of the trolley are on the guide rails. When walking, it will slip due to the influence of temperature, and the flux used for welding will inevitably splash on the guide rail, causing the trolley to jam or "jump", resulting in unstable walking of the welding trolley and uneven width of the weld bead. In severe cases, it will affect Welding quality, the third is the small size of the bed, which limits the size of the processing rollers

Method used

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  • Double-handpiece column roller overlaying welding machine tool
  • Double-handpiece column roller overlaying welding machine tool
  • Double-handpiece column roller overlaying welding machine tool

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0020] Roller size: Φ350mm×3200mm; stainless steel surfacing is applied to the roller surface, and the hardness requirement is 52-56HRC. GY256 welding wire is selected, and the welding parameters are as follows:

[0021]

[0022] The double-head column-type surfacing welding machine tool and the original surfacing welding machine tool were respectively selected for surfacing welding. The welding parameters are exactly the same, and the original surfacing welding machine tool also uses two trolleys for operation.

[0023] The comparison results are as follows:

[0024] ① The working efficiency of the double-head column type surfacing machine is significantly higher than that of the original surfacing machine: the double-head column type surfacing machine takes 10.5 hours, and the original surfacing machine takes 12.25 hours. The original surfacing welding machine spent a lot of time dealing with slipping and jamming of the trolley.

[0025] ②The quality of the surfa...

example 2

[0029] Roller size: Φ500mm×2870mm; stainless steel surfacing is applied to the roller surface, and the hardness requirement is 42-48HRC. 0Cr13Ni4MoN welding wire is selected, and the welding parameters are as follows:

[0030] Current (A)

[0031] The surfacing welding is carried out on the double-head column type surfacing welding machine tool and the original surfacing welding machine tool respectively. The welding parameters are exactly the same, and the original machine tool also uses two trolleys for operation.

[0032] The comparison results are as follows:

[0033] 1. It took 22.5 hours for the double-head column type surfacing machine tool, and 28 hours for the original surfacing machine tool. With the prolongation of surfacing welding time, the probability of slipping and jamming of the surfacing welding trolley of the original surfacing welding machine increases.

[0034] 2. The quality of the surfacing rollers of the double head column type surfacing mac...

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PUM

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Abstract

The invention discloses a double machine head upright post type roll resurfacing machine tool, which solves the technical defects existing in the prior resurfacing machine tool. The lower part of the machine tool is a horizontal rotating machine body; one end of the machine body is provided with a chuck, while the other end is provided with a roller wheel; and a guide rail groove is arranged between the chuck and the roller wheel. The side surface of the machine body consists of two upright posts and a crossbeam on the upper parts of the upright posts, the side surface of the crossbeam is provided with two V-shaped guide rails which are suspended with a T-shaped lining board in a parallel mode, and a rack is welded along the length direction above the crossbeam; and a cable stand at the back of the crossbeam is suspended with a cable. The crossbeam at the upper parts of the upright posts is provided with a resurfacing machine head, a running mechanism is fixed at the outer side surface of the T-shaped lining board, and the lifting adopts a screw rod and handwheel mode; the height of the resurfacing machine head can be finely adjusted; and a variable frequency speed regulation motor is arranged a horizontal panel which is arranged on the T-shaped lining board and is higher than the crossbeam. The motor of the machine tool has no thermal dead halt, and the phenomena of jamming and shutdown are excluded; the transmission is accurate, the machine head has steady running, and the widths of welding seams are uniform; and the diameter of a maximum welding roll part can reach 800mm, and the length of a roll body can reach 3.5m.

Description

technical field [0001] The invention belongs to the field of surfacing welding machine tools, and more specifically, the invention relates to a double-head column type roller surfacing welding machine tool. Background technique [0002] At present, the welding industry mostly uses a trolley-type automatic submerged arc welding machine and a surfacing machine tool composed of a horizontal bed to surfacing the rollers. The advantage of this combination machine tool is that the structure is simple, the automatic submerged arc welding machine is a finished product, which is easy to purchase, and it can be replaced quickly if there is a problem with the welding machine. However, there are technical problems in the process of use. First, the traveling system of the welding machine is relatively close to the heat source. Due to the high heat generated by submerged arc welding and the high temperature around the heat source, the traveling system is prone to failure; the second is th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/04B23K9/12B23K9/32B23Q1/01B23Q1/30
CPCY02P70/10
Inventor 于景远张健高伟周霞刘宇
Owner DALIAN XINZHONG GRP
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