Upper tooth pitch measuring instrument for large gear hobbing machine

A technology of gear hobbing machine and measuring instrument, which is applied in the direction of mechanical clearance measurement, etc., which can solve problems such as time-consuming and labor-intensive, affecting production efficiency, and existing errors

Pending Publication Date: 2018-06-12
CHONGQING MACHINE TOOL GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

The traditional method is to measure directly with a ruler, and there will be errors in manual measurement, which is time-consuming and labor-intensive, which affects production efficiency

Method used

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  • Upper tooth pitch measuring instrument for large gear hobbing machine
  • Upper tooth pitch measuring instrument for large gear hobbing machine
  • Upper tooth pitch measuring instrument for large gear hobbing machine

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Embodiment Construction

[0030] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0031] like figure 1 As shown, the measuring instrument of the present invention realizes the automatic collection of the tooth pitch error data of the measured gear and all the logic actions of the control instrument through the sensor. The sensor is the key of the instrument, and it will directly affect the accuracy of the measurement work. For this reason, this embodiment adopts double probes for measurement, wherein the inductive probe is the reading probe, and the fixed probe is the positioning probe.

[0032] When the tooth surface of the gear under test touches the two probes, the change in the arc length of the tooth pitch of the gear under test causes the distance between the reading probe and the positioning probe to change accordingly, and is converted into an amplitude modulation signal by the reading probe, and the two probes ...

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Abstract

The invention belongs to the technical field of gear detection and relates to an upper tooth pitch measuring instrument for a large gear hobbing machine. By adoption of an upper relative measurement method, relative measurement of tooth pitch errors of straight gears, bevel gears and worm gears machined on a gear machine tool is carried out. The measurement method is free of any indexing standards, tooth pitches of tested gears are subjected to one-by-one own tooth pitch comparison according to the circumference closed principle, and an industrial controller is used as a data processing systemfor calculating single tooth pitch deviation, N tooth pitch cumulative deviations and total tooth pitch cumulative deviation. The upper tooth pitch measuring instrument has advantages that online detection of the single tooth pitch deviation, the tooth pitch cumulative deviation and the total tooth pitch cumulative deviation of the tested gears can be realized, machining conditions are adjusted according to deviation values, and time of workpiece moving, lifting and recalibration in testing can be saved.

Description

technical field [0001] The invention belongs to the technical field of gear detection and relates to an upper-mounted tooth pitch measuring instrument for a large gear hobbing machine. Background technique [0002] A gear is a mechanical element with teeth on the rim that can continuously mesh to transmit motion and power. Usually, gears are processed by hobbing machines, milling machines, slotting machines, gear planers, etc. After processing, the gears need to measure the pitch between the teeth. To determine whether the processed gear meets the process requirements, the tooth pitch is the arc length between the tooth profiles of two adjacent teeth on the same side measured on any circumference. The traditional method is to measure directly with a ruler, and there will be errors in manual measurement, which is time-consuming and labor-intensive, which affects production efficiency. Contents of the invention [0003] In view of this, the purpose of the present invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/16
CPCG01B5/16
Inventor 李先广杨灿辉廖承渝张良
Owner CHONGQING MACHINE TOOL GROUP
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