Recently, in 2018 China automobile Automatic Transmission Industrialization International symposium and China Gear Transmission Industry Development Forum, Wuhan Chinese laborers laser Intelligent Equipment Business Group deputy general manager Li Xiang, said: ' Laser welding technology has become the gear industry application of welding technology the best choice. We have successfully developed a full automatic welding production line autogear (OK) in China, has provided 38 welding lines for auto industry.
'
Laser welding is the laser irradiation to the welding part of the joint heating, so that the workpiece material to achieve the combination of atoms and form a permanent connection process. Laser welding has the following characteristics: High energy density, small line energy, thermal deformation small, heat-affected zone small, large depth and width ratio, strong welding; non-physical contact high-speed connection process, welding conventional method is difficult to weld the materials and parts, can be small, complex for simple, small collage, simple to fight for complex, can realize dissimilar metal connection;
Weld surface is well formed, can be used directly, light weight, simple processing and assembly.
At present, the gear laser welding equipment faces the strict laser protection standard and the competitive market environment.
Department of the United States, Germany, Japanese enterprises new transmission double gear processing lines are using a new type of laser welding technology to meet the near-harsh labor cost control and welding technical requirements.
In the world, the existing multi-electron beam welding and laser welding technology for gear welding.
Compared with the electron beam welding equipment, the same level of laser welding equipment is simple, no vacuum environment, high production efficiency, low processing cost, durable, low maintenance costs.
Autogear (OK) automatic gear laser welding production line actual operating costs in addition to labor costs and depreciation costs about 30 yuan/hour, according to the minimum 24 seconds automatic production of 1 gear calculation, each production of a gear hard cost of about 0.2 yuan. ' If the enterprise developed a set of automatic gear laser welding production line, high-precision machine Automatic identification gear type, the system immediately replace the corresponding processing procedures, without human intervention, can complete six kinds of gears of laser welding operations and the work of the upstream and downstream operations tasks. If the enterprise develops and designs a set of automatic gear laser welding flexible fixture, it will be able to strictly protect gears from laser welding high temperature spatter burns, but also to achieve a minute rapid change gear processing type needs. If the enterprise development and design of a set of fully automatic gear pressing process, with load sensors and displacement sensors, can accurately control the quality of gear, gear processing precision can reach 0.02mm, the highest production efficiency of up to 19 seconds/pieces, far higher than the international similar equipment 25 seconds/pieces; Greatly reduce the labor costs and labor intensity, the number of personnel from the previous two to 0.3 two digits.