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Machining method for improving ultra-accurate split spindle accuracy

A processing method and a split-type technology are applied in the processing field of improving the accuracy of ultra-high-precision split-type spindles, which can solve the problems of difficult spindle replacement and high processing costs, and achieve the effects of improving accuracy, ensuring production requirements, and ensuring accuracy.

Inactive Publication Date: 2014-12-24
南京紫薇精密机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Due to the difficulty in replacing the integral spindle and high processing costs, we have adopted a split-type solution to solve this problem, but how to make a combined-type solution to achieve ultra-high-precision processing requirements is what we must solve now question

Method used

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  • Machining method for improving ultra-accurate split spindle accuracy
  • Machining method for improving ultra-accurate split spindle accuracy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Spindle blanking, annealing, the processed workpiece is raised for turning, milling and clamping, then heat treatment, and then grinding.

[0022] The grinding steps are as follows:

[0023] (1) Roughly grind the outer circles of the two first, and put 0.45 margin

[0024] (2) Clamp and polish the outer circle, set up the center frame, and grind the positioning datum at both ends

[0025] (3) Coarsely grind the outer circle and inner cone of each part with 0.09 coarse grinding amount

[0026] (4) Aging stress relief treatment

[0027] (5) Intensively study the positioning datum at both ends to ensure that the out-of-roundness of the positioning datum at both ends is within 0.001

[0028] (6) Finely grind the outer circles of each part to the size, after grinding, the concentricity of each outer circle is 0.001, and the cylindricity is 0.001

[0029] (7) The outer circle is used as the reference, and the runout between the inner cone and the outer circle is detected ...

Embodiment 2

[0035] Spindle blanking, annealing, the processed workpiece is raised for turning, milling and clamping, then heat treatment, and then grinding.

[0036] The grinding steps are as follows:

[0037] (1) Roughly grind the outer circles of the two first, and put 0.46 allowance

[0038] (2) Clamp and polish the outer circle, set up the center frame, and grind the positioning datum at both ends

[0039] (3) Coarsely grind the outer circle and inner cone of each part with 0.1 coarse grinding amount

[0040] (4) Aging stress relief treatment

[0041] (5) Intensively study the positioning datum at both ends to ensure that the out-of-roundness of the positioning datum at both ends is within 0.001

[0042] (6) Finely grind the outer circles of each part to the size, after grinding, the concentricity of each outer circle is 0.001, and the cylindricity is 0.001

[0043] (7) The outer circle is used as the reference, and the runout between the inner cone and the outer circle is detecte...

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Abstract

The invention discloses a machining method for improving the ultra-accurate split spindle accuracy. The method includes blanking, annealing, turning a machined workpiece, milling, performing clamping machining, quenching, and grinding. According to the method, rough machining is performed on the two outer circles of a spindle for central frame erection, then the central frame is erected for performing fine machining on two-end positioning references fractionally, the accurate positioning during grinding is guaranteed, the accuracy required by design on the outer circles during outer circle grinding is guaranteed, a hole is machined firstly during sleeve machining, a special mandrel of 1: 10000 is used, the concentricities of outer circles and outer cones are guaranteed by grinding the outer circles and outer cones, the design requirements can be completely met after the split spindle matches with a sleeve, and the cost is reduced greatly.

Description

technical field [0001] The invention relates to a processing method, in particular to a processing method of a spindle. Background technique [0002] Due to the difficulty in replacing the integral spindle and high processing costs, we have adopted a split-type solution to solve this problem, but how to make a combined-type solution to achieve ultra-high-precision processing requirements is what we must solve now question. Contents of the invention [0003] The object of the present invention is to provide a split-type spindle processing method with high stability, long service life and ultra-high precision in view of the deficiencies in the prior art. [0004] In order to achieve the purpose of the above invention, the technical solution adopted in the present invention is a processing method for improving the precision of the ultra-high-precision spindle, including the following steps: [0005] Spindle blanking, annealing, turning, milling and clamping of the workpiece...

Claims

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Application Information

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IPC IPC(8): B24B1/00
CPCB24B1/00
Inventor 不公告发明人
Owner 南京紫薇精密机械有限公司
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