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Radially adjustable indexing disc and adjusting method for same

An indexing plate and adjustable technology, which is applied in the direction of gear teeth, gear cutting machines, belts/chains/gears, etc., can solve the problems affecting the machining accuracy of gears and gear tools, and achieve the improvement of cumulative total deviation of tooth pitch, convenient adjustment, The effect that the error compensation effect is obvious

Inactive Publication Date: 2012-06-20
DALIAN UNIV OF TECH
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the installation eccentric error of the index plate is reflected in the cumulative deviation of the pitch of the processed gear at a ratio of 1:2, which affects the machining accuracy of the gear and gear cutter

Method used

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  • Radially adjustable indexing disc and adjusting method for same
  • Radially adjustable indexing disc and adjusting method for same
  • Radially adjustable indexing disc and adjusting method for same

Examples

Experimental program
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Embodiment Construction

[0013] First, adjust the radial direction of the adjustable indexing plate, and then fix it on the precision angle measuring device through the indexing plate measuring accessory, measure and record the indexing cumulative error curve of the indexing plate in this state, and record the indexing plate diameter at the same time Radial runout error relative to the axis of rotation of the precision angle measuring device relative to the reference datum.

[0014] Perform data processing on the indexing cumulative error curve of the indexing plate, convert the angular error of the indexing plate into the displacement error at the contact line between the positioning claw and the indexing plate, and use the least square method to separate the first-order sinusoidal harmonic in the error curve wave component. The radial position of the indexing plate is adjusted according to the magnitude and azimuth of this sine harmonic component. The size of the adjustment amount is theoretically ...

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Abstract

The invention discloses a radially adjustable indexing disc and an adjusting method for the same. The radially adjustable indexing disc is characterized in that: a radial reference datum and four uniformly distributed screw holes are arranged on a mounting hub of the radially adjustable indexing disc, roundness of the radial reference datum is not greater than 1 micron, and a radial gap (around 1mm) is arranged between a mounting aperture and an axial diameter of the indexing disc. The adjusting method comprises the following steps of: measuring an indexing error curve of the indexing disc by using an indexing error measuring device of the indexing disc, and adjusting the radial position of the indexing disc, wherein the adjustment amount is the magnitude of a primary harmonic component in total cumulative pitch error of a processed gear or total accumulative indexing error of the indexing disc; adjusting an azimuth angle to lag behind the maximum value (90 degrees) of the primary harmonic component; and using an end-face screw to fix the indexing disc on a shaft of the indexing disc after the radial position of the indexing disc is adjusted in place. In the invention, the radial position of the adjustable indexing disc is adjusted to compensate the primary harmonic component in the total cumulative pitch error of the grinded gear and improve the total cumulative pitch error of the same; and the adjusting method disclosed by the invention has the advantages of convenience for adjustment and obvious error compensating effect.

Description

technical field [0001] The invention belongs to the technical field of precision manufacturing of gears and gear cutters, and relates to a radially adjustable indexing plate and an adjustment method thereof for improving the cumulative deviation of the tooth pitch of processed gears or gear cutters. Background technique [0002] The indexing plate indexing system has the advantages of simple structure, high indexing accuracy and stable indexing, and is widely used in precision gear grinding machines for high-precision gears and gear cutters. Most of the indexing plate indexing system adopts the positioning claw-indexing plate indexing system, and the indexing accuracy of the machine tool mainly depends on the machining accuracy of the tooth groove of the indexing plate. The cumulative manufacturing deviation of the tooth groove of the indexing plate is usually 10″~30″, and the deviation of the adjacent tooth pitch is about 3″~5″. Such an indexing plate is only suitable for g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23F23/08
Inventor 凌四营王立鼎马勇娄志峰
Owner DALIAN UNIV OF TECH
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