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An arc welding method and the special automatic welding machine

An arc welding method and automatic welding machine technology, applied in arc welding equipment, welding equipment, manufacturing tools, etc., can solve the problem that the welding process cannot be effectively controlled in sections, the thermal deformation of the processed parts cannot be controlled, and the processing quality is stable Poor performance and other problems, to achieve the effect of good controllability of thermal deformation, remarkable technical effect, and low labor intensity

Inactive Publication Date: 2007-09-26
武汉长江融达电子有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

For example, there are disadvantages such as poor processing quality stability, uneven weld surface, inability to control the thermal deformation of the processed parts, especially cracks at both ends of the weld, low work efficiency, and high labor intensity.
The existing arc welding is usually manual, which fails to solve the above problems. Automatic or semi-automatic welding equipment cannot effectively control the welding process in sections, and thus cannot solve the above problems well.

Method used

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  • An arc welding method and the special automatic welding machine
  • An arc welding method and the special automatic welding machine
  • An arc welding method and the special automatic welding machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Described a kind of electric arc welding method, its steps are as follows:

[0042] a. Gas supply: the protective gas to be transported is selected from argon;

[0043] b. Arcing preheating: Preheat the welding joint of the processed part with an electric arc, the preheating time is 0.5 seconds to 1.5 seconds, and this embodiment is 0.8 seconds;

[0044] c. Initial fast wire filling: when the processed parts are not moving, quickly fill the initial welding port with welding wire under the condition of arc heating. The wire filling speed is 5-20 mm / s, and this embodiment is 10 mm / s;

[0045] d. Moving welding at a constant speed: the workpiece to be processed keeps moving at a constant speed relative to the welding wire in the forward direction, and the moving speed is 1 to 8 mm / s, which is 4 mm / s in this embodiment;

[0046] e. Fast wire filling at the end point: when the processed part moves close to the end point of the welding joint, it is quickly filled with weldin...

Embodiment 2

[0049] Embodiment 2. The difference from the above embodiment is that the arc starting preheating time is 1.5 seconds, the initial fast wire filling speed is 20 mm / s, the moving speed of uniform moving welding is 1 mm / s, and the end point is fast The wire filling speed of the wire filling is 5 mm / s.

Embodiment 3

[0050] Embodiment 3. The difference from the above embodiment is that the arc starting preheating time is 0.5 seconds, the wire filling speed of initial fast wire filling is 5 mm / s, the moving speed of uniform moving welding is 8 mm / s, and the end point is fast The wire filling speed of the wire filling is 20 mm / s.

[0051] Two, as shown in Figure 2, 3, 4, 5, 6, be the embodiment of the special-purpose automatic welding machine of implementing aforementioned a kind of arc welding method of the present invention:

[0052]Taking the welding process of BS15 gearbox shift fork as an example, the special automatic welding machine implementing the aforementioned arc welding method has a frame 6, and the components installed on it are: an electric control cabinet 1, the electric control cabinet 1 has A Chinese character display (selected from 128X64 dot matrix with backlight liquid crystal display), a programmable control unit, keyboard input, manual start button, a pedal start switc...

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Abstract

The invention relates to an electrical arc welding method and the special automatic welding machine, belonging to the electrical arc welding technology field. It is especially suitable for the welding of auto parts. The electrical arc welding method comprises a. sending air; b. preheating by arc striking; c. filling wire rapidly at starting point; d. movably welding in uniform speed; e. filling wire rapidly at ending point; f. retreating arc; and g. stopping air. The special automatic welding machine for implementing said electrical arc welding method has a frame, on which an electrical cabinet, a face movable actuating mechanism for machined part, a lifting mechanism, a wire feeding mechanism and an arc welding machine are set. The merit of invention is that automatic control for all welding process of face path is realized and it is provided with high stability for welding processing quality, flat and uniform welding surface, good controllability for thermal deformation of machined part, high working efficiency, low labor intensity and decreased producing cost.

Description

technical field [0001] The invention relates to an arc welding method and a special automatic welding machine thereof, which belong to the technical field of arc welding and are especially suitable for welding auto parts. Background technique [0002] In the precision manufacturing of equipment parts, the traditional methods use a large number of die casting, forging, or stamping, etc., and then carry out metal machining. This method can ensure product quality, but the process is complicated, the efficiency is low, and the material is wasted. Larger and higher overall cost. In view of the above problems, there is an existing arc welding method to manufacture product parts, but for parts with high welding quality requirements, such as the gearbox shift fork in the automotive operating system, the existing arc welding method cannot solve it well Product quality and production efficiency issues. For example, there are disadvantages such as poor processing quality stability, u...

Claims

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Application Information

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IPC IPC(8): B23K9/00B23K9/16B23K9/095B23K9/12B23K9/133
Inventor 付畅李创
Owner 武汉长江融达电子有限公司
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