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Automatic flat fillet welding method of heavy arc plate

An automatic welding and circular arc plate technology, applied in welding equipment, metal processing equipment, manufacturing tools, etc., to meet the quality requirements of weld seams, beautiful shape, and less land occupation

Inactive Publication Date: 2018-01-09
SHANGHAI ZPMC ELECTRIC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the welding problems of heavy plates existing in the prior art, the purpose of the present invention is to provide an automatic welding method for flat fillet welding of heavy arc plates

Method used

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  • Automatic flat fillet welding method of heavy arc plate
  • Automatic flat fillet welding method of heavy arc plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] 1. According to the robot welding program command, design a parametric programming program module, and recalibrate the position and shape parameters of the programming module according to the actual workpiece. The position of the point is adjusted and controlled, and the distance between the end of the welding wire of the robot welding gun and the root of the lap fillet weld is 0.5 times the diameter of the welding wire. The gun posture is 45 degrees, and the gun is pushed at 15-20 degrees.

[0034] 2. Process parameter setting:

[0035] According to the thickness requirements of the workpiece, different process parameters are set respectively. The process parameters of the typical single-pass welding leg size of 6mm for medium-thick plate welding are used. The welding speed is 35-40cm / min, the welding current is 190-210A, the welding voltage is 23V, and the pendulum Frequency 3Hz, swing amplitude 1.8mm, stay 0.1s on both sides.

[0036] 3. Workpiece preparation and we...

Embodiment 2

[0044] 1. According to the robot welding program command, design a parametric programming program module, and recalibrate the position and shape parameters of the programming module according to the actual workpiece. The position of the point is adjusted and controlled, and the distance between the end of the welding wire of the robot welding gun and the root of the lap fillet weld is 0.5 times the diameter of the welding wire. The gun posture is 45 degrees, and the gun is pushed at 15-20 degrees.

[0045] 2. Process parameter setting:

[0046] According to the thickness requirements of the workpiece, different process parameters are set respectively. The process parameters of the typical single-pass welding leg size of 8mm for medium-thick plate welding are used. The welding speed is 30-35cm / min, the welding current is 230-250A, the welding voltage is 24V, and the pendulum Frequency 2.5Hz, swing 3mm, stay 0.1s on both sides.

[0047] 3. Workpiece preparation and welding:

...

Embodiment 3

[0055] 1. According to the robot welding program command, design a parametric programming program module, and recalibrate the position and shape parameters of the programming module according to the actual workpiece. The position of the point is adjusted and controlled, and the distance between the end of the welding wire of the robot welding gun and the root of the lap fillet weld is 0.5 times the diameter of the welding wire. The gun posture is 45 degrees, and the gun is pushed at 15-20 degrees.

[0056] 2. Process parameter setting:

[0057] According to the thickness requirements of the workpiece, different process parameters are set respectively. The process parameters of the typical single-pass welding leg size of 10mm for medium-thick plate welding are used. The welding speed is 30-35cm / min, the welding current is 230-250A, the welding voltage is 25V, and the pendulum Frequency 2.2Hz, swing 3mm, stay 0.1s on both sides.

[0058] 3. Workpiece preparation and welding:

...

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Abstract

The invention discloses an automatic flat fillet welding method of a heavy arc plate. The method comprises the steps of (1) path programming and (2) groove treatment and welding, wherein the path programming comprises the following steps: a whole circular plate path is divided into multiple equal parts; the gesture adjustment and control are performed in the position of each equal dividing point;the distance from the end part of a welding wire of a welding gun to the root part of a lap fillet weld is controlled to be 0.5 times of the diameter of the welding wire; the gesture of the gun is 45degrees; the gun is pushed by 15-20 degrees; and the welding gun is pointed to the circle center. The automatic flat fillet welding method of the heavy arc plate is low in investment, few in occupiedlands, liable to operate, good mass consistency, beautiful in shaping and free of welding defects and lap arc pits, saves both time and labors, needs no polishing and repair welding, has no recess andedge engagement phenomenon, is excellent in molding, has no defects of unwelding and cracking, totally meets the welding line quality requirements of bearing components, and greatly improves the working efficiency.

Description

technical field [0001] The invention relates to a welding method, in particular to an automatic welding method for flat fillet welding of heavy-duty circular-arc plates. Background technique [0002] At present, the heavy-duty plate structure is widely used in heavy-duty fields such as ships, port machinery and bridges, and is the main connection force-bearing structure. The heavy-duty structure is usually composed of a bottom plate and two side reinforcement rings. Usually, according to the stress situation, the lap weld between the component reinforcement ring and the bottom plate adopts the form of weld with groove or without groove, and the welding position is flat fillet weld. Since this structure is the main stress-bearing part, the quality of the weld is usually high. Beautifully formed. [0003] However, manual welding cannot guarantee the welding quality, and the shape is not beautiful, requiring a lot of follow-up grinding work. However, the use of special machin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K31/02
Inventor 周军黄蓉蓉贾小磊钱丹黄建鹏
Owner SHANGHAI ZPMC ELECTRIC
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