Equally divided eccentric ball socket fine grinding tooling and processing method

Abstract

The invention belongs to the field of mechanical processing, and relates to a fine grinding tooling and processing method for equally divided eccentric ball sockets, including an eccentric sleeve, a positioning ball and a split-type spherical grinder; the axis of the eccentric sleeve coincides with the axis of the split-type spherical grinder; the eccentric There are parts mounting holes on the sleeve; the positioning ball is flexibly connected with the eccentric sleeve; the center of the positioning ball is on the axis of the eccentric sleeve; the parts to be processed are placed on the eccentric sleeve through the part mounting holes, and the position of the parts to be processed is adjusted through the positioning ball The ball socket to be finely processed, so that the center of the ball socket to be finely processed is on the axis of the eccentric sleeve; the split spherical grinder is aligned with the ball socket to be finely processed on the part to be processed and finely ground the ball socket to be finely processed. The invention provides a fine grinding tool and a processing method for equally divided eccentric ball sockets, which reduce the processing difficulty of eccentric ball sockets, improve operability and ensure product quality.

Description

technical field [0001] The invention belongs to the field of machining, and relates to a ball socket processing tool and a processing method, in particular to an equally divided eccentric ball socket fine grinding tool and a processing method applied to a spline shaft of an oblique axis plunger motor. Background technique [0002] For equally divided eccentric ball and socket (structures such as figure 1 There are currently three ways: one is to use a ball-end milling cutter on a vertical machining center to perform semi-finishing through three-axis linkage, and then use a single-hole lathe on an ordinary lathe for alignment or grinding. This method It is difficult to guarantee the position size and surface profile of the ball socket; the second is to use an eccentric combined fixture for precision turning of the ball socket on a CNC lathe. This method has extremely high requirements on the accuracy of the indexing and the dynamic balance of the eccentric fixture. It is dif...

AI Technical Summary

Problems solved by technology

[0002] For equally divided eccentric ball and socket (structure such as figure 1 As shown), there are currently three methods: one is to use a ball end mill on a vertical machining center to perform semi-finishing through three-axis linkage, and then use a single hole alignment grinding or grinding on an ordinary lathe. It is difficult to guarantee the position size and surface profile of the ball socket; the second is to use the eccentric combined fixture on the CNC lathe for precision turning of the ball socket. This method has extremely high requirements for the accuracy of the indexing and the dynamic balance of the eccentric fixture. Manufacturing is difficult, and the position and size are difficult to guarantee; the third is to use a machining center equipped with a U-axis for compound linkage cutting. This method can adjust and control the position, ball diameter, surface profile and surface quality of the ball socket. However, the cost of configuring the U-axis and corresponding accessories is high, and the sharp increase in manufacturing costs has discouraged many companies.

At present, there is no application of grinding processing methods for equally divided eccentric ball sockets

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