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Turning method for eccentric circle of crank shaft of RV (Rotary Vector) speed reducer and special eccentric tool

A crankshaft and reducer technology, which is applied to turning equipment, turning equipment, manufacturing tools, etc., can solve the problems of high cost, low efficiency of CNC milling, long processing time, etc., and achieve low production cost, high processing efficiency, and parts high precision effect

Inactive Publication Date: 2019-04-12
天津旗领机电科技有限公司
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Nowadays, many CNC milling processes or follow-up precision lathes are used. The efficiency of NC milling is low and the processing time is long. Although the follow-up lathe can realize one-time clamping and two eccentric circles are processed at the same time, the cost of the equipment itself is high, so the "conventional Lathe + special tooling" has become the first choice

Method used

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  • Turning method for eccentric circle of crank shaft of RV (Rotary Vector) speed reducer and special eccentric tool
  • Turning method for eccentric circle of crank shaft of RV (Rotary Vector) speed reducer and special eccentric tool
  • Turning method for eccentric circle of crank shaft of RV (Rotary Vector) speed reducer and special eccentric tool

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Embodiment Construction

[0019] The embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that the embodiments are illustrative, not restrictive, and cannot limit the protection scope of the present invention.

[0020] In order to facilitate the understanding of the method of the present invention, the structure of the special eccentric tooling used in the method is first introduced in detail:

[0021] Such as figure 2 and image 3 As shown, the inside of the eccentric tooling 5 is provided with an inner spline 6 and a stepped inner hole 9, the inner spline and the stepped inner hole are coaxially arranged and communicated with each other to ensure that the inner spline and the stepped inner hole are concentric. The external shape of the eccentric tooling is a triangle, and the axis of the triangular inscribed circle 7 is not coaxial with the axis of the step inner hole, ensuring that the distance between the axis of ...

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Abstract

The invention relates to a turning method for an eccentric circle of a crank shaft of a RV (Rotary Vector) speed reducer and a special eccentric tool. The turning method adopts a three-claw clamping manner and has the advantages of simple method, concentrated procedures, low production cost, high part precision and the like. A part clamping method is simple, complicated adjustment is not needed and the processing efficiency is high. The same eccentric tool is adopted, so that an angular reference and an eccentric amount are fixed, and furthermore, the consistency of the eccentric amounts of two eccentric circles is good and the precision of eccentric indexing of 180 degrees is high; and the processing requirements of the crank shaft of the RV speed reducer are met.

Description

technical field [0001] The invention relates to the technical field of machine tool processing, in particular to a method for turning an eccentric circle of a crankshaft of an RV reducer and a special eccentric tooling. Background technique [0002] Crankshaft 4 (such as figure 1 (shown) is the force-bearing transmission part of the core of the RV reducer for the robot, and its main structure includes double eccentric circles 2 and 3 opposing 180° and the spline 1 on the left end face. The difficulty in manufacturing this part lies in controlling the dimensional accuracy of the double eccentric outer circle, the machining accuracy of the eccentricity, the indexing accuracy of the two eccentricities of 180°, and the positional accuracy of the eccentric direction and the end face spline. Nowadays, many CNC milling processes or follow-up precision lathes are used. The efficiency of NC milling is low and the processing time is long. Although the follow-up lathe can realize one-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B31/10B23B5/18
CPCB23B5/18B23B31/10
Inventor 常乐张瑞波张磊单新泉韩研研余正权陈鹏孔德杰
Owner 天津旗领机电科技有限公司
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