A processing system and processing method for a rolled bush

Abstract

The invention discloses a machining system of a rolled bush. The machining system comprises a punching machine, a shaping machine, a milling machine and a conveying belt connected among the punching machine, the shaping machine and the milling machine. A progressive die is arranged in the punching machine in a matched manner, and an assembling die is arranged in the shaping machine in a matched manner. According to the machining system and the machining method of the rolled bush, automatic machining equipment is adopted, and high-precision machining of the rolled bush can be achieved in cooperation with three machining procedures.

Description

technical field [0001] The invention relates to a processing method, in particular to a processing system and a processing method for a rolled bush. Background technique [0002] In the production and assembly of automobile parts, inserts are an indispensable part. In the automobile power transmission system, there is a carbon steel supported insert, also known as a rolled bush, which is injection molded in the shell for Later riveting. [0003] The existing rolled bushes are all cylindrical C-shaped structures, which are curled into a cylindrical body by the plate, and the two ends are in contact with each other but there is a certain gap. The existing processing method of the rolled bush is to pass the curled plate through a punching machine. Stamping to form a roughly round rough product, and then insert a cylindrical rod inside the rough product, the processor manually beats the outside of the bush to make it round, and the inner diameter value is close to the processin...

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Problems solved by technology

[0003] The existing rolled bushes are all cylindrical C-shaped structures, which are curled into a cylindrical body by the plate, and the two ends are in contact with each other but there is a certain gap. The existing processing method of the rolled bush is to pass the curled plate through a punching machine. Stamping to form a roughly round rough product, and then insert a cylindrical rod inside the rough product, the processor manually beats the outside of the bush to make it round, and the inner diameter value is close to the processing requirements, and finally the two ends of the bush are turned by a lathe The processing makes the height of the bushing approximate to the processing value. This method is still traditional manual processing. Let alone the processing efficiency is very low. The bushing precision processed by this processing method is very low, and its inner and outer diameter values, roundness, roughness, It is difficult to precisely control the verticality and levelness of the cut surface, and it is only suitable for customers who do not require high processing precision, but for customers with high processing precision requirements, this method cannot meet the requirements at all.

[0004] Aiming at the defects of manual processing in the domestic market, Germany BIHLER and Japan TPS Company have developed a processing equipment and processing method. Firstly, the plate is cut to size to form a rectangular workpiece to be processed, and then the rectangular workpiece to be processed is cut from different parts by special processing equipment. The direction is pressed to the middle cylindrical rod, and finally a cylindrical bush is formed. Through this kind of processing equipment, the processing speed can be greatly improved, and the processing accuracy can be effectively controlled by the machine. However, this kind of equipment is unique to these two companies. If the cost is very high, and although the processing accuracy has been improved, it still cannot meet the processing requirements of high-precision bushings on the market.

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