Method for processing bearing seat cylinder surface on variable housing of plunger pump

Abstract

The invention provides a method for processing a bearing seat cylinder surface on a variable housing of a plunger pump. The method is characterized in that an angle head is mounted on a main shaft of a machine tool; a circular cutter is mounted on a transmission shaft of the angle head; a bearing seat is mounted on a clamp which is mounted on four horizontal axles; the angle head and the circular cutter can extend into an inner chamber of the bearing seat to process together; the main shaft of the machine tool rotates to drive the transmission shaft of the angle head to rotate so as to drive the circular cutter to rotate, and a workbench moves left and right to realize cutting and feeding, thus the cylinder surface on one side of the bearing seat can be processed; and when the four axles rotate at 180 degrees together with the bearing seat and the clamp, the cylinder surface on the other side of the bearing seat can be processed. According to the method, the angle head and the circular cutter extend into the inner chamber of the bearing seat to process; a small cylinder surface for process of the variable housing is removed; and the process is reduced, so that the production efficiency and product reliability can be improved.

Description

technical field [0001] The invention relates to a method for processing a cylindrical surface of a bearing bush seat on a variable displacement housing of a plunger pump. Background technique [0002] The cylindrical surface of the bearing pad seat on the variable housing of the existing CY14-1B series swash plate axial piston pump is processed by a three-sided milling cutter on a horizontal milling machine, such as figure 1 As shown, the three-sided edge milling cutter 4 is installed on the main shaft 5 of the horizontal milling machine 1, and is locked with the compression sleeve 3 and the nuts 2 at both ends, and the other end of the main shaft 5 is supported on the tailstock 6 of the milling machine. The bearing pad seat 7 is installed in the fixture 9 on the workbench, and the milling cutter 4 is fed by the left and right movement of the workbench, thereby processing the cylindrical surface of the bearing pad seat. The main shaft 5 is overhanging and elongated. Due to ...

AI Technical Summary

Problems solved by technology

[0003] The existing technology has the following problems: Not only is the time for processing the small cylindrical surface wasted, but also the small cylindrical surface used for the process is just right next to the sealing groove of the variable body shell, just to mill the sealing groove and the inner cavity, which not only affects the sealing performance of the product, Serious and even cause product failure

The cost of the tool is high, in order to solve the problem of too fast tool wear, the size of the cylindrical surface of the bearing seat had to be enlarged to 0.054mm, which caused poor dimensional stability

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