Introduction to the Characteristics, Performance and Applications of Robotic Laser Welding

Introduction to the Characteristics, Performance and Applications of Robotic Laser Welding

I. What is a Robotic Laser Welding Machine?

A welding robot is an automated welding device for welding operations. As the name implies, a welding robot can realize intelligent welding of workpieces without manual intervention. Its intelligent control system is equivalent to the response of a skilled welder and can be flexibly applied to workpieces of different specifications. A robotic laser welding machine uses laser as the welding heat source. It can irradiate a high-energy-density laser beam on two parts of the material, causing local heating and melting, which then cools and solidifies to form an integrated whole.

II. Characteristics of Robotic Laser Welding Machines

  1. Stabilize welding quality and improve product qualification rate

     

    Before welding different workpieces, the robot will automatically identify the weld seam and feed welding materials to fill it. The weld seams are aesthetically pleasing and firm, and the workpieces have high consistency, which improves the product qualification rate.

  2. Reduce workers’ labor intensity

     

    Welding robots equipped with auxiliary equipment can realize automatic flipping of thick-plate workpieces and perform repetitive production, helping workers free themselves from heavy welding tasks.

  3. Improve production efficiency

     

    Traditional welding is affected by welding environment and human factors during operation, which slows down the work progress and is not conducive to enterprises’ rational arrangement of production. Songle intelligent welding robots feature high automation, capable of continuous operation and long-time welding tasks, helping enterprises improve production efficiency.

  4. Lower costs

     

    In traditional welding, welding defects such as incomplete welding, deviation welding, and over-welding may occur, increasing enterprises’ material costs. Welding robots can feed welding materials according to the weld seam, making full use of the materials while ensuring precise welding. One operator can operate two to three welding robots simultaneously, reducing enterprises’ labor costs.

III. Basic Performance Requirements of Robotic Laser Welding Machines

  1. Welding speed

     

    Welding speed needs to match welding quality. Excessively fast welding speed will affect welding quality and easily cause defects like welding deviation, insufficient welding, and missing welding. If the welding speed is too slow, it will affect the product production process. Welding speed is an important indicator determining welding efficiency.

  2. Rated wrist load

     

    It refers to the load that the end of the robotic laser welding machine can bear. The rated wrist load determines its arm span and the specifications of welded workpieces, and the load includes welding torch, cables, visual sensors, wire feeding tubes, etc.

  3. Number of axes

     

    It refers to the joints of the robotic laser welding machine. The flexibility of the robotic laser welding machine varies with the number of axes. Robots with more joints have better flexibility, can handle more workpiece specifications, and have wider welding applications.

  4. Arm span

     

    It reflects the welding radius of the robotic laser welding machine. The longer the arm span, the larger the welding radius and the larger the specifications of welded workpieces. Users can select the arm span of the robotic laser welding machine according to their welding space, workpiece specifications, and welding requirements.

  5. Body weight

     

    The weight of the robotic laser welding machine varies with specifications, and also differs according to arm span and welding range.

  6. Repeat positioning accuracy

     

    It reflects the welding accuracy maintained by the robotic laser welding machine during repetitive movements. Only robotic laser welding machines of qualified quality can maintain welding accuracy without deviation.

 
The moving speed of a robotic laser welding machine is an important indicator, which requires fast completion of multi-point positioning with small spacing (e.g., positioning after moving a 30-50mm spacing every 0.3-0.4 seconds). To ensure welding quality, high positioning accuracy (generally ±0.25mm) is required; it should have a large load-bearing capacity (50-100kg) to support welding tongs with built-in transformers.

IV. Application Fields of Robotic Laser Welding Machines

  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 strong thermal radiation. Machinery manufacturing also involves many large-scale equipment, which increases the difficulty of welding. Robotic welding equipment is an automated mechanical device for welding, which reduces workers’ labor intensity and helps improve the automation level in the machinery manufacturing field.

  2. Automobile manufacturing field

     

    In recent years, to meet public demand, the automobile industry has shown diversified development, and traditional welding can no longer meet the high welding requirements of automobile and auto parts manufacturing. Songle intelligent robotic welding equipment can achieve precise welding of weld seams and feed just the right amount of welding materials for filling, resulting in aesthetically pleasing and firm weld seams. In many modern automobile production workshops, automated welding equipment assembly lines have been formed.

  3. Electronic equipment field

     

    The electronic equipment field has high requirements for welding quality. With the continuous increase of social demand for electronic equipment, the electronic equipment industry has developed rapidly, but it also faces severe challenges. Robotic welding equipment can ensure production efficiency while stabilizing welding quality, realize precise welding of electronic equipment, and its efficiency is three to four times higher than that of manual welding.

  4. Shipbuilding field

     

    In ship structures, there are nearly a thousand welded components and tens of thousands of related parts. Most of the important load-bearing components of ships adopt welded structures, and the hull bears great pressure during operation, so welding requirements are strict. Robotic welding equipment can flexibly set welding parameters through automatic weld seam tracking technology to achieve precise welding of various parts of the ship.


Post time: Dec-10-2025