CN107796618A - A kind of measuring method of main shaft dynamic characteristic - Google Patents
A kind of measuring method of main shaft dynamic characteristic Download PDFInfo
- Publication number
- CN107796618A CN107796618A CN201610787972.9A CN201610787972A CN107796618A CN 107796618 A CN107796618 A CN 107796618A CN 201610787972 A CN201610787972 A CN 201610787972A CN 107796618 A CN107796618 A CN 107796618A
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- CN
- China
- Prior art keywords
- displacement sensor
- high accuracy
- hydrostatic spindle
- dynamic characteristic
- accuracy displacement
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/025—Test-benches with rotational drive means and loading means; Load or drive simulation
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The invention provides a kind of measuring method of main shaft dynamic characteristic.Comprise the following steps：The 1st, measuring basis is installed；The 2nd, high accuracy displacement sensor is installed；3rd, regulation measurement primary clearance；4th, measure：Run the close direct-drive type hydrostatic spindle system of vertical superfinishing, turn-on data acquisition system, collection the distance between high accuracy displacement sensor and measuring basis ball situation of change in real time, data are stored in computer in case processing and analysis, are operated so as to complete the dynamic characteristic on-line checking of ultraprecise hydrostatic spindle.The beneficial effects of the invention are as follows：Eliminate alignment error influences to caused by measurement result, it is possible to achieve carries out real-time online measuring to the dynamic characteristic of the ultraprecise hydrostatic spindle under actual processing state, does not influence the process of ultra-precision machine tool.
Description
Technical field
The present invention relates to main shaft fields of measurement, more particularly, to a kind of measuring method of main shaft dynamic characteristic.
Background technology
The experimental rig of (rotating speed is more than 10000r/min) dynamic characteristics of spindle system test has the disadvantage that at a high speed at present：
1st, existing high-speed main spindle dynamic performance testing platform can only often test a certain item performance of high-speed main spindle, and function is excessively
Single, its integrated level has much room for improvement；
2nd, data acquisition is complicated, and data processing is excessively coarse, and can not online handle, show, improves main shaft dynamic
The automaticity of Performance Test System is the task of top priority；
3rd, dynamic characteristics of spindle system test platform architecture design imperfection, the multi-faceted installation of main shaft can not be realized, and tested
Different installation lower main axis dynamic property, main-shaft side edge vibration experiment can not be completed, and platform precision is inadequate, introduce error compared with
Greatly.
4th, for one of main shaft most critical performance parameter orbit of shaft center test, conventional method is by high-precision test base
The limitation of accurate (accurate axle, standard ball etc.), is not particularly suited for the test of high-precision main shaft, and reverse method and multistep processes equal error
Isolation technics (Error Separation Technique, i.e. EST) can only test the turn error in one direction of main shaft, and it is grasped
Make the main shaft that process is also not particularly suited under revolution at a high speed.
The content of the invention
The present invention provides a kind of measuring method of main shaft dynamic characteristic.
To realize above-mentioned goal of the invention, the embodiment that the present invention takes is as follows：
A kind of measuring method of main shaft dynamic characteristic, comprises the following steps：1) measuring basis is installed：Standard ball is arranged on
Hydrostatic spindle System Back-end portion, the lower end of detection bar are fixed on the input part of direct-drive type ultraprecise hydrostatic spindle by nut
It is internal；2), high accuracy displacement sensor, the installation site of one of high accuracy displacement sensor and the level of reference sphere are installed
Axis is consistent, and the installation site of another high accuracy displacement sensor is consistent with the vertical axis of reference sphere；3), regulation measurement is first
Beginning gap：Direct-drive type ultraprecise hydrostatic spindle is slowly rotated with hand, adjustment high accuracy displacement sensor is first with measuring basis ball
Beginning gap, clearance control when rotating main shaft between high accuracy displacement sensor and measuring basis ball senses in high precision displacement
In the range of the measuring range of device；4), measure：The operation close direct-drive type hydrostatic spindle system of vertical superfinishing, turn-on data acquisition system,
Collection the distance between high accuracy displacement sensor and measuring basis ball situation of change in real time, data are stored in computer in case place
Reason and analysis, so as to complete the operation of the dynamic characteristic on-line checking of ultraprecise hydrostatic spindle.
The beneficial effects of the invention are as follows：Eliminate alignment error influences to caused by measurement result, can realize in
The dynamic characteristic of ultraprecise hydrostatic spindle under actual processing state carries out real-time online measuring, does not influence adding for ultra-precision machine tool
Work process.
Embodiment
With reference to embodiments, to according to embodiment provided by the invention, details are as follows：
Embodiment 1
A kind of measuring method of main shaft dynamic characteristic, comprises the following steps：
1) measuring basis is installed：Standard ball is arranged on hydrostatic spindle System Back-end portion, the lower end of detection bar passes through nut
It is fixed on the input components interior of direct-drive type ultraprecise hydrostatic spindle；
2), high accuracy displacement sensor is installed, the installation site of one of high accuracy displacement sensor and reference sphere
Horizontal axis is consistent, and the installation site of another high accuracy displacement sensor is consistent with the vertical axis of reference sphere；
3), regulation measurement primary clearance：Direct-drive type ultraprecise hydrostatic spindle is slowly rotated with hand, adjustment high precision displacement passes
The primary clearance of sensor and measuring basis ball, gap when rotating main shaft between high accuracy displacement sensor and measuring basis ball
Control is in the range of the measuring range of high accuracy displacement sensor；
4), measure：The close direct-drive type hydrostatic spindle system of vertical superfinishing is run, turn-on data acquisition system, collection is high in real time
The distance between Accuracy Displacement sensor and measuring basis ball situation of change, data are stored in computer in case handling and analyzing,
So as to complete the operation of the dynamic characteristic on-line checking of ultraprecise hydrostatic spindle.
The beneficial effects of the invention are as follows：Eliminate alignment error influences to caused by measurement result, can realize in
The dynamic characteristic of ultraprecise hydrostatic spindle under actual processing state carries out real-time online measuring, does not influence adding for ultra-precision machine tool
Work process.
One embodiment of the present of invention is described in detail above, but the content is only the preferable implementation of the present invention
Example, it is impossible to be considered as the practical range for limiting the present invention.All equivalent changes made according to the present patent application scope and improvement
Deng, all should still belong to the present invention patent covering scope within.
Claims (1)
- A kind of 1. measuring method of main shaft dynamic characteristic, it is characterized in that comprising the following steps：1) measuring basis is installed：Standard ball is arranged on hydrostatic spindle System Back-end portion, the lower end of detection bar is fixed by nut In the input components interior of direct-drive type ultraprecise hydrostatic spindle；2), high accuracy displacement sensor, the installation site of one of high accuracy displacement sensor and the level of reference sphere are installed Axis is consistent, and the installation site of another high accuracy displacement sensor is consistent with the vertical axis of reference sphere；3), regulation measurement primary clearance：Direct-drive type ultraprecise hydrostatic spindle is slowly rotated with hand, adjusts high accuracy displacement sensor With the primary clearance of measuring basis ball, clearance control when rotating main shaft between high accuracy displacement sensor and measuring basis ball In the range of the measuring range of high accuracy displacement sensor；4), measure：The close direct-drive type hydrostatic spindle system of vertical superfinishing is run, turn-on data acquisition system, collection is high-precision in real time The distance between displacement transducer and measuring basis ball situation of change, data are stored in computer in case handling and analyzing, so as to Complete the dynamic characteristic on-line checking operation of ultraprecise hydrostatic spindle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610787972.9A CN107796618A (en) | 2016-08-31 | 2016-08-31 | A kind of measuring method of main shaft dynamic characteristic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610787972.9A CN107796618A (en) | 2016-08-31 | 2016-08-31 | A kind of measuring method of main shaft dynamic characteristic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107796618A true CN107796618A (en) | 2018-03-13 |
Family
ID=61528482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610787972.9A Pending CN107796618A (en) | 2016-08-31 | 2016-08-31 | A kind of measuring method of main shaft dynamic characteristic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107796618A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103341788A (en) * | 2013-06-28 | 2013-10-09 | 哈尔滨工业大学 | Ultra-precise static-pressure main shaft dynamic characteristic online testing method capable of eliminating measuring basis installation error |
| CN103344425A (en) * | 2013-06-28 | 2013-10-09 | 哈尔滨工业大学 | Standard plane type ultra-precise direct-drive hydrostatic spindle dynamic property on-line testing method |
| CN103335833B (en) * | 2013-07-02 | 2015-05-13 | 哈尔滨工业大学 | Device for online measuring dynamic performance of ultra-precision hydrostatic spindle and method for measuring dynamic performance of hydrostatic spindle by using same |
-
2016
- 2016-08-31 CN CN201610787972.9A patent/CN107796618A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103341788A (en) * | 2013-06-28 | 2013-10-09 | 哈尔滨工业大学 | Ultra-precise static-pressure main shaft dynamic characteristic online testing method capable of eliminating measuring basis installation error |
| CN103344425A (en) * | 2013-06-28 | 2013-10-09 | 哈尔滨工业大学 | Standard plane type ultra-precise direct-drive hydrostatic spindle dynamic property on-line testing method |
| CN103335833B (en) * | 2013-07-02 | 2015-05-13 | 哈尔滨工业大学 | Device for online measuring dynamic performance of ultra-precision hydrostatic spindle and method for measuring dynamic performance of hydrostatic spindle by using same |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180313 |
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| RJ01 | Rejection of invention patent application after publication |