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Machine tool main shaft pull broach mechanism reliability testing device

A technology of machine tool spindle and test device, which is applied in the testing of machine/structural components, measuring device, testing of mechanical components, etc., can solve the problems that the performance of the broaching mechanism cannot be fully reflected, and the reliability test of the spindle broaching mechanism cannot be completed. Achieve the effect of eliminating invalid loading force, high reliability, and simple test device

Active Publication Date: 2017-06-30
JILIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is that the prior art cannot conduct a comprehensive reliability test on the main shaft broach mechanism, and the existing broach force detection device cannot fully reflect the performance of the broach mechanism

Method used

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  • Machine tool main shaft pull broach mechanism reliability testing device
  • Machine tool main shaft pull broach mechanism reliability testing device
  • Machine tool main shaft pull broach mechanism reliability testing device

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Embodiment Construction

[0051] The present invention is described in detail below in conjunction with accompanying drawing:

[0052] A reliability test device for a main shaft broaching mechanism according to the present invention is composed of four major parts: a main shaft installation module, a simulated tool handle module, a loading module and an auxiliary module. Its function and composition are described as follows:

[0053] The spindle installation module realizes the installation function of the tested spindle. The module includes a main shaft 3, a main shaft pulling claw 3-1, a main shaft holding clamp 4, a main shaft supporting table 21 and a screw trimmer 29;

[0054] The loading module realizes simulating the action of the tool changing manipulator, provides power for changing the tool handle and provides dynamic cutting force that changes in size and direction. This module includes an electro-hydraulic servo loading mechanism 8, a loading rod 8-1, a loading mechanism base 9, a loading...

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Abstract

The invention belongs to the technical field of machine testing equipment and methods, and relates to a machine tool main shaft pull broach mechanism reliability testing device. The device is composed of a main shaft installation module, a simulation broach handle module, a loading module and an auxiliary module; the main shaft installation module comprises a main shaft and a main shaft clamp; the loading module comprises an electro-hydraulic servo loading mechanism, a servo motor, a small gear, an arc rack, a spherical loading end, a pressure sensor and an electro-hydraulic servo valve; the simulation broach handle module comprises a bearing loading unit, a slide rail, an automatic generating ring and a slide block; the main shaft and the electro-hydraulic servo loading mechanism are connected through the bearing loading unit, and the automatic generating ring is installed between the main shaft and the bearing loading unit; the bearing loading unit is installed on the slide rail through the slide block, and can slide on the slide rail. The machine tool main shaft pull broach mechanism reliability testing device can simulate the broach replacing processes of main shaft broach handles with different types, conduct reliability tests and early running-in tests on the main shaft pull broach mechanism, and achieve a guide effect on accelerating service life tests of the broach mechanism.

Description

technical field [0001] The invention belongs to the technical field of mechanical testing equipment and methods, and relates to a device for performing reliability tests on a main shaft broach mechanism, in particular to a device capable of simulating the working conditions of the main shaft broach mechanism and detecting the performance of the broach mechanism reliability test device. Background technique [0002] As the key functional part of the CNC machine tool, the reliability of the spindle has a great influence on the reliability of the whole machine. According to the statistical law, the broach mechanism in the spindle accounts for a large proportion of failures. Although there is a device for testing the broach mechanism of the main shaft at present, such as CN205352685U, it can only simulate the action of the manipulator on the loose broach, and cannot dynamically simulate the impact of the cutting process on the broach mechanism, and there is no dynamic detection ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/00
CPCG01M13/00
Inventor 陈玮峥陈菲李强李恒旭
Owner JILIN UNIV
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