1 Introduction Next page Panel Door,Flush Wood Doors ,Wooden Doors Design Jiekai Industrial And Trading Co., Ltd. , http://www.gosdoors.com
Since the establishment of the welding auxiliary equipment and appliance manufacturing industry, it has played an important role in the entire welding industry and has been highly valued by the industry. In the past fifteen years, China's welding auxiliary equipment and appliance manufacturing industry has developed rapidly on the basis of the original. The welding auxiliary equipment has been expanded from the traditional three major machines - welding machine, positioner and roller frame to various welding special. Complete sets of equipment, robot workstation supporting equipment, welding production lines and flexible welding production systems. The scale of enterprises engaged in the design and production of welding equipment is constantly expanding, and the technical level and product quality are continuously improved.
2. Development history of China's welding auxiliary equipment and appliance manufacturing industry
The exact name of the welding aid should be the welding process equipment. All processing equipment and devices for producing welded structures belong to welding process equipment, including preparation equipment, welding assembly fixtures, welding displacement machines, and post-weld processing equipment. The welding process equipment directly related to the welding process mainly includes groove processing equipment, welding assembly fixture, welding positioner, welding operation machine, special complete welding equipment, robot workstation and welding production line.
China's welding process equipment manufacturing industry started late, and it was not until the early 1970s that a number of manufacturing plants specializing in the production of welding process equipment were built in Shanghai, Chengdu, and Changchun. In the 1980s, with the increasing demand for domestic welding process equipment, a number of small and medium-sized welding equipment manufacturers were established. Recently, a new welding equipment manufacturer with a certain scale has been newly built or rebuilt. So far, there are 24 welding equipment manufacturers in China, and there are more than 10 with an annual output of more than 20 million yuan. Some enterprises have developed at a faster rate and have a larger scale, and some welding equipment has been mass-produced. For example, Wuxi Yangtong Machinery Equipment Co., Ltd. has reached a total sales volume of 120 million in 2001, ranking first in the industry. The total annual sales of the whole industry has reached 500 million.
In terms of the variety and technical characteristics of welding equipment, most of the welding equipment produced in China in the early 1980s was a relatively simple welding operation machine, roller frame, positioner, turning machine and rotary platform. The complete set was poor and the degree of automation was low. Can only be counted as mechanized welding equipment. In the late 1980s, due to the introduction of a large number of foreign advanced sets of welding equipment, the technological progress of domestic welding equipment was promoted, and the completeness of the equipment, the degree of automation, and the accuracy and manufacturing quality of the equipment were improved to varying degrees. At present, China has been able to produce 8m×10m heavy-duty column beam type operation machine, equipped with advanced narrow gap submerged arc welding machine head gantry type longitudinal seam welder and column beam type narrow gap ring seam welder. The heavy tonnage welding roller frame has a maximum tonnage of 400t. Heavy-duty container ring gap narrow gap submerged arc welding and large-area surfacing welding must be equipped with the necessary equipment - automatic anti-smashing roller frame has been successfully developed and put into operation for many years, the anti-smashing accuracy is ± 1.5mm. The welding positioner has been serially produced with a maximum load capacity of 100t. Every year, large, medium-sized single-sided rotary and double-sided rotary turning machines for various automotive, locomotive and engineering machinery parts are put into operation. Large-scale production of automotive and motorcycle parts special arc welding machine and solder mask, large and medium-sized roll surfacing machine, large diameter pipe welding production line; h-shaped steel and box beam welding production line. In the driving and control system of welding equipment, the more advanced AC motor frequency conversion speed regulation, DC motor thyristor speed regulation, PLC programmable controller, servo motor and its drive system, microcomputer and industrial computer control, etc. are widely used. . The degree of automation of welding equipment has been greatly improved. The welding machine can be equipped with automatic seam tracking system and industrial TV monitoring system according to users' needs.
In the welding robot workstation supporting equipment, China has established Shougang Motoman Robot Co., Ltd. and Shenyang Xinsong Robot Automation Co., Ltd., and has been able to produce more than 100 sets of small and medium-sized robot workstations for domestic users every year.
The production of domestic welding equipment and accessories has formed a certain scale, and the product quality is close to the international level. According to recent statistics, there are 34 professional production enterprises producing wire feeders, various welding torches, contact nozzles, pressure reducers, flow meters, jigs, welding rods, flux drying equipment, ceramic nozzles, etc., with an annual output value of more than 100 million yuan. It is worth mentioning that Guangzhou Abitec Welding Technology Co., Ltd. has formed a group company with a number of domestic welding torch accessories manufacturers, and the production scale has expanded rapidly. In 2001, the total output of welding torch has reached 90 million yuan.