Double-eccentric fixture and machining method for double-eccentric shaft

A double eccentric and fixture technology is applied in metal processing equipment, metal processing machinery parts, clamping, etc., which can solve the problems of high processing cost of double eccentric shafts, large equipment investment, and large loss of guide rails and screw screws of machine tools. Reduce processing costs, save costs, and facilitate adjustments

Active Publication Date: 2017-08-11
YANTAI AIDI PRECISION MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the processing of the eccentric circle of the double eccentric shaft of the workpiece to be processed mostly needs to be completed by the linkage between the turret and the spindle of the multi-axis machine tool. The multi-axis linkage machine tool is usually imported equipment. Linkage, the loss of the guide rail and screw of the machine tool is relatively large, resulting in high processing costs for double eccentric shafts

Method used

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  • Double-eccentric fixture and machining method for double-eccentric shaft
  • Double-eccentric fixture and machining method for double-eccentric shaft
  • Double-eccentric fixture and machining method for double-eccentric shaft

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Embodiment 1

[0039] Example 1, such as Figure 4-Figure 10 Shown, a kind of processing method of double eccentric shaft comprises lathe and above-mentioned double eccentric fixture, and described lathe comprises three-jaw chuck and turning mechanism, and the number of teeth of the inner spline on the described eccentric inner spline through hole is an even number, the maximum eccentric radius of the eccentric circle is the maximum value from the axis center of the workpiece axis to be processed to the outer contour of the eccentric circle, and the maximum eccentric radius of the first eccentric circle on the workpiece axis to be processed is R1, and the second eccentric circle The maximum eccentric radius of the double eccentric fixture is R2; the maximum value from the center of the eccentric inner spline through hole of the double eccentric fixture to the outer contour is the maximum eccentric radius R0, and the double eccentric fixture is also provided with a reference black dot mark, an...

Embodiment 2

[0045] Example 2, such as Figure 11-Figure 14 Shown, a kind of processing method of double eccentric shaft comprises lathe and above-mentioned double eccentric fixture, and described lathe comprises three-jaw chuck and turning mechanism, and the number of teeth of the inner spline on the described eccentric inner spline through hole is an even number, taking the number of external spline teeth of the double eccentric shaft to be processed as 12 as an example, set the maximum eccentric radius of the eccentric circle to be the maximum value from the axis center of the workpiece shaft to be processed to the outer contour of the eccentric circle, and set The maximum eccentric radius of the first eccentric circle is R1, and the maximum eccentric radius of the second eccentric circle is R2; if the maximum value from the center of the eccentric inner spline through hole of the double eccentric clamp to the outer contour is the maximum eccentric radius R0, the double eccentric clamp ...

Embodiment 3

[0051] Embodiment 3, a processing method of a double eccentric shaft, including a lathe and the above-mentioned double eccentric fixture, the lathe includes a three-jaw chuck and a turning mechanism, the inner spline on the eccentric inner spline through hole The number of teeth is an even number, and the maximum eccentric radius of the eccentric circle is set to be the maximum value from the axis center of the workpiece axis to be processed to the outer contour of the eccentric circle, and the maximum eccentric radius of the first eccentric circle on the workpiece axis to be processed is R1, and the second eccentric radius The maximum eccentric radius of the circle is R2; the maximum value from the center of the eccentric inner spline through hole of the double eccentric fixture to the outer contour is the maximum eccentric radius R0, and the double eccentric fixture is also provided with a reference black dot mark, and the reference The black dot mark is set on the double ecc...

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Abstract

The invention discloses a double-eccentric fixture and a machining method for a double-eccentric shaft. The double-eccentric fixture comprises a fixture body. The fixture body is of a cylinder structure and is provided with an eccentric inner spline through hole. The eccentric distance between the center line of the eccentric inner spline through hole and the axis of the fixture body is equal to the distance between the center line of the eccentric circle of the to-be-machined workpiece shaft and the axis of the to-be-machined workpiece shaft. The machining method for the double-eccentric shaft comprises the following steps that the fixture is installed, and the workpiece shaft is matched with a fixture spline; the first eccentric circle body is machined through a turning mechanism, and the straight line where R0 is located and the straight line where R1 is located after turning are located in the same plane and are corresponding in eccentric direction; and the double-eccentric fixture is rotated, the second eccentric circle body is machined through the turning mechanism, and the straight line where R0 is located and the straight line where R2 is located after turning are located in the same plane and are corresponding in eccentric direction. The double-eccentric fixture is simple in structure and convenient to operate, can be matched with an ordinary lathe to conduct machining on an eccentric part of the double-eccentric shaft without other auxiliary components, and reduces the machining cost of the double-eccentric shaft.

Description

technical field [0001] The invention relates to a processing method for a double eccentric fixture and a double eccentric shaft, and belongs to the technical field of transmission component processing. Background technique [0002] Such as figure 1 As shown, the double eccentric shaft 5 includes a shaft body and two eccentric circles arranged on the shaft body, which are respectively the first eccentric circle 6 and the second eccentric circle 7. The end of the shaft body is provided with an external flower, 8, and the second eccentric circle 1. The second eccentric circles are all cylindrical structures, the phase difference between the first eccentric circle and the second eccentric circle is 60-180 degrees, the eccentric distance between the center line of the first eccentric circle and the axis of the shaft body is the same as the second The eccentric distance between the centerline of the eccentric circle and the axis of the shaft body is the same. [0003] At present...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q3/00
CPCB23Q3/00B23Q2703/10
Inventor 任平川刘远志隋安东高启光
Owner YANTAI AIDI PRECISION MASCH CO LTD
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