Welding robots can replace manual labor to complete welding independently. Nowadays, welding robots are more and more widely used. This is a major trend in the future development of the welding manufacturing industry. It can improve welding quality, productivity and labor costs. The emergence of welding robots is good news for the manufacturing industry, and as time goes by, welding robots will gain more applications and recognition, becoming the general trend in the future.

A. What is a robot laser welding machine?

Welding robot is an automated laser welding equipment used for welding operations. As the name suggests, welding robots can achieve intelligent welding of welding parts without human intervention. Its intelligent control system is equivalent to the reaction of a skilled welder and can be flexibly applied to weldments of different specifications. Robotic laser welding machines use lasers as the welding heat source. The robot laser welding machine can irradiate high-energy-density laser beams on two parts of materials, causing local heating and melting, and then cooling and solidification to form a whole.

B. Characteristics of robot laser welding machine

1. Stabilize welding quality and improve product qualification rate.

Before welding different welding workpieces, the robot automatically identifies the welding seam and puts down the welding material to fill the welding seam. The welds are beautiful and firm, and the weldments have high consistency, which improves the product qualification rate.

2. Reduce the labor intensity of workers.

Welding robots with auxiliary equipment can automatically turn over thick plate weldments and perform repeated production, helping to free workers from heavy welding tasks.

3. Improve production efficiency.

Traditional welding will be affected by the welding environment and human factors during operation, which will slow down the work process and is not conducive to the reasonable arrangement of production by enterprises. Songle's intelligent welding robot has a high degree of automation and can perform continuous operations and long-term welding tasks, helping companies improve production efficiency.

4. Reduce costs.

In traditional welding, welding defects such as under-welding, partial welding, over-welding, etc. It will happen and will increase the company's material costs. The welding robot can lay down the welding material according to the weld seam, making full use of the welding material while welding accurately. One operator can operate two to three welding robots at the same time, reducing the company's labor costs.

C. Basic performance requirements of robotic laser welding machines

1.Welding speed.

The welding speed needs to match the welding quality. Excessive welding speed will affect the welding quality and easily cause welding defects such as welding deviation, missing welds, and missing welds. If the welding speed is too slow, it will affect the product production process. Welding speed is an important indicator that determines welding efficiency.

2. Rated load of the wrist.

Refers to the load that the end of the robot laser welding machine can bear. The rated load of the wrist determines its arm distance and welding workpiece specifications. Its load includes welding guns, cables, vision sensors, wire feed tubes, etc.

3. Number of axles.

Refers to the joints of the robot laser welding machine. The flexibility of robotic laser welding machines varies with the number of axes. Robotic laser welding machines with a large number of joints have better flexibility, more specifications of welding parts, and wider welding applications.

4. Wingspan.

It reflects the welding radius of the robot laser welding machine. The longer the arm span, the larger the welding radius, and the larger the specifications of the weldment. Users can choose the arm distance of the robot laser welding machine according to their own welding space, weldment specifications and welding requirements.

5. Body weight.

The weight of robotic laser welding machines varies with specifications, and also varies with arm distance and welding range.

6. Repeatable positioning accuracy.

It reflects the welding accuracy maintained by the robot laser welding machine during repeated movements. Only a robot laser welding machine with qualified quality can maintain the welding accuracy without deviation.

The moving speed of the robot laser welding machine is an important indicator, which requires the rapid completion of multi-point positioning with small spacing (for example, positioning after moving 30-50mm spacing every 0.3-0.4 seconds). In order to ensure the welding quality, high positioning accuracy is required (generally 0.25mm); it has a large carrying capacity (50 ~ 100 kg) to carry the welding clamp with built-in transformer.

D. Application fields of robot laser welding machine

1. Engineering machinery manufacturing field

With the intensification of welding tasks in the machinery manufacturing industry, welding is inherently a dangerous occupation with poor working conditions and high heat radiation. Mechanical manufacturing also has a lot of large-scale equipment, which also increases the difficulty of welding. Robotic welding equipment is an automated mechanical equipment engaged in welding, which liberates workers' labor intensity and helps improve the automation level in the machinery manufacturing field.

2.Automobile manufacturing field

In recent years, in order to meet the needs of the public, the automobile industry has shown diversified development. Traditional welding can no longer meet the high welding requirements of automobiles and auto parts manufacturing. Songle's intelligent robot welding equipment can achieve precise welding of the welding seam and put down just the right amount of welding material to make the welding seam beautiful and firm. In many modern automobile production workshops, automated welding equipment assembly lines have been formed.

3. Electronic equipment field

The field of electronic equipment has high requirements on welding quality. As society's demand for electronic equipment continues to increase, electronic equipment is developing rapidly, but it also faces severe challenges. Robotic welding equipment can ensure production efficiency while stabilizing welding quality, and achieve precise welding of electronic equipment, which is three to four times more efficient than manual welding.

4. Shipbuilding field

In the ship structure, there are nearly a thousand welded components of the ship, involving nearly ten thousand parts. Most of the important load-bearing components of ships are welded components. The hull bears a lot of pressure during operation, and the welding requirements are strict. Robotic welding equipment flexibly sets welding parameters through automatic welding seam tracking technology to accurately weld various parts of the ship.