Spherical surface grinding fixture applied to ca6140 lathe

Abstract

The invention discloses a spherical surface grinding clamp applied to a CA6140 lathe. The spherical surface grinding clamp comprises a base. The base is provided with a sliding base matched with the base in a sliding manner, and a drive mechanism used for driving the sliding base to slide. The sliding base is provided with a clamp main shaft and a power mechanism. The power mechanism is in transmission connection with the clamp main shaft. One end of the clamp main shaft is connected with a clamping mechanism, and the end face of the other end of the clamp main shaft is provided with an eccentric column. The center line of the eccentric column and the center line of the clamp main shaft are parallel. The distance between the center line of the eccentric column and the center line of the clamp main shaft is larger than 0. The eccentric column is connected with a crank and rocker mechanism. The end, close to the clamping mechanism, of the base is provided with an installing structure which can be matched with the lathe in a rotating manner. The spherical surface grinding clamp can be used in the CA6140 lathe, a grinding machine does not need to be customized, and the grinding cost isreduced beneficially.

Description

technical field [0001] The invention relates to the field of machining equipment, in particular to a spherical grinding fixture applied to a CA6140 lathe. Background technique [0002] In recent years, the high pressure trend of positive displacement hydraulic transmission has made the use of plunger pumps more and more widely. The leakage of the oil distribution mechanism of the plunger pump and the wear of the sliding surface are very important to the life of the plunger pump. From the use experience of the end face seal, it can be concluded that the method of using mechanical end face seal in the oil distribution mechanism is not good, and the seal must be designed according to the hydraulic principle. In this way, an oil film of a certain thickness must be formed between the cylinder block and the plane of the oil distribution plate to prevent direct metal contact, so that the cylinder block has a certain floating ability, which requires a flexible connection, and the c...

AI Technical Summary

Problems solved by technology

At present, the spherical surface grinding process requires the use of grinding machines. The existing spherical grinding machine tools process a spherical surface with a diameter of about 20mm, while the diameter of the plunger pump cylinder block oil concave spherical surface is 200mm. It requires a customized grinding machine, which costs a lot and increases the burden on the enterprise. The CA6140 lathe is a very common machine tool in various mechanical processing plants, and the cost of purchase and use is low. If a process that can be used for spherical grinding on the CA6140 lathe can be designed, the processing cost can be greatly reduced and the competitiveness of the enterprise can be improved.

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