CN103712646A - Performance testing device for main-shaft servo system - Google Patents
Performance testing device for main-shaft servo system Download PDFInfo
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- CN103712646A CN103712646A CN201210373433.2A CN201210373433A CN103712646A CN 103712646 A CN103712646 A CN 103712646A CN 201210373433 A CN201210373433 A CN 201210373433A CN 103712646 A CN103712646 A CN 103712646A
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Abstract
The invention discloses a performance testing device for a main-shaft servo system. The performance testing device includes a test computer, a machine-tool main shaft, a motor, a torque control interface board, a torque measurement interface board, a photoelectric-encoder interface board, a speed-detector interface board, a torque gauge, a torque controller, a torque sensor, a magnetic-powder brake, a photoelectric encoder and a rotor speed detector. The performance testing device for the main-shaft servo system adopts the incremental photoelectric encoder as the speed detector and is capable of applying adjustable simulating machine-tool inertia and cutting torque load to a test stand so that static and dynamic characteristics of the servo system under light-load and heavy-load conditions are detected and thus quantitative evaluation on the static and dynamic performance can be performed on the servo system and resources of a digital signal processor are used sufficiently and thus accurate measurement of rotor flux-linkage position angle and rotating speed is realized, cost is reduced and promotion is facilitated.
Description
Technical field
The present invention relates to a kind of mechanical test auxiliary equipment, relate in particular to a kind of spindle servo system performance testing device.
Background technology
Servo-drive system is the key link of manufacturing industry numerically-controlled machine, and it directly affects the performance of lathe.Development along with robotization process technology, people constantly increase the demand of high-performance servo-drive system, because asynchronous machine has firm, reliable, cheap, efficient advantage, asynchronous ac motor servo-drive system has obtained a large amount of application in the robotization processing of numerically-controlled machine; Position detecting device is as the important component part of numerically-controlled machine, its effect is exactly to detect displacement, and send the command signal that feedback signal sends with numerical control device and compare, if there is deviation, after amplifying, controlling execution unit makes it towards the direction motion of eliminating deviation, until deviation equals zero.Therefore, the precision that speed detects has directly limited serve system of machine-tool spindle performance, and then has affected the precision of robotization processing.
Summary of the invention
Object of the present invention provides a kind of spindle servo system performance testing device with regard to being in order to address the above problem.
The present invention is achieved through the following technical solutions above-mentioned purpose:
The present invention includes test computer, machine tool chief axis, motor, torque control interface plate, torque measurement interface board, photoelectric encoder interface board, speed detector interface board, torque measurer, torque controller, torque sensor, magnetic powder brake, photoelectric encoder and spinner velocity detector, described machine tool chief axis is all connected with the main shaft of described motor with described magnetic powder brake, described torque sensor is installed on the position corresponding with described electric machine main shaft and for measuring the torque of described motor, the signal output part of described torque sensor is connected with the signal input part of described torque measurer, the signal output part of described torque measurer is connected with the dtc signal input end of described test computer by described torque measurement interface board, described photoelectric encoder is installed on the position corresponding with described electric machine main shaft and for measuring the drive displacement of described motor, the signal output part of described photoelectric encoder is connected with the position displacement signal input part of described test computer by described photoelectric encoder interface board, described spinner velocity detector is installed on the position corresponding with described machine shaft and for detection of the speed of described motor, the signal output part of described spinner velocity detector is connected with the rate signal input end of described test computer by described speed detector interface board, the torque control signal output terminal of described test computer is connected with the control signal input end of described torque controller by described torque control interface plate, the control signal output terminal of described torque controller is connected with the control signal input end of described magnetic powder brake.
Beneficial effect of the present invention is:
The present invention adopts incremental optical-electricity encoder as speed detector, can on testing table, apply adjustable simulated machine tool inertia and cutting moment load, thereby record the quiet dynamic perfromance of servo-drive system under the condition of underloading, heavy duty, can carry out quantitative evaluation to the static and dynamic performance of servo-drive system, and the present invention takes full advantage of the resource of digital signal processor, realize the accurate measurement of flux linkage position of the rotor angle and rotating speed, reduced cost, be beneficial to popularization.
Accompanying drawing explanation
Fig. 1 is structural principle block diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
As shown in Figure 1: comprise test computer, machine tool chief axis, motor, torque control interface plate, torque measurement interface board, photoelectric encoder interface board, speed detector interface board, torque measurer, torque controller, torque sensor, magnetic powder brake, photoelectric encoder and spinner velocity detector, machine tool chief axis is all connected with the main shaft of motor with magnetic powder brake, torque sensor is installed on the position corresponding with electric machine main shaft and for measuring the torque of motor, the signal output part of torque sensor is connected with the signal input part of torque measurer, the signal output part of torque measurer is connected with the dtc signal input end of test computer by torque measurement interface board, photoelectric encoder is installed on the position corresponding with electric machine main shaft and for measuring the drive displacement of motor, the signal output part of photoelectric encoder is connected with the position displacement signal input part of test computer by photoelectric encoder interface board, spinner velocity detector is installed on the position corresponding with machine shaft and for detection of the speed of motor, the signal output part Negotiation speed detector interface board of spinner velocity detector is connected with the rate signal input end of test computer, the torque control signal output terminal of test computer is connected with the control signal input end of torque controller by torque control interface plate, the control signal output terminal of torque controller is connected with the control signal input end of magnetic powder brake.
As shown in Figure 1: maximum load torque of the present invention is 50N.Applying of load torque adopts magnetic powders brake device and torque controller automatically to control by test computer.Due to the torque of its transmission and the size of exciting curent substantially linear after nonlinear compensation.By current closed-loop, control the size of exciting curent, just can be in approximately 5%～100% nominal torque controlling torque size stably.Under the constant condition of exciting curent size, magnetic powders brake device can stable transmission slippage torque and be not subject to the impact of slip speed.In addition, magnetic powders brake device is provided with complete heat abstractor, can long time running, and sliding friction part can too not generated heat yet continuously, causes scaling loss, and Durability is long, therefore, has met preferably the requirement of testing.
The present invention, by 5000 lines/photoelectric encoder turning and the torque sensor of maximum detection torque 50Nm are installed on test board, can test position, speed and three key elements of torque of servomotor output.All control signals and torque sensor, photoelectric encoder signals collecting interface adopt photoelectric isolation technology, and peak signal frequency can reach 1MHz, adopt level Four hardware digital filtering, have increased the antijamming capability of test signal.The test of whole proving installation and control procedure all automatically complete under the control of test computer.
Claims (1)
1. a spindle servo system performance testing device, it is characterized in that: comprise test computer, machine tool chief axis, motor, torque control interface plate, torque measurement interface board, photoelectric encoder interface board, speed detector interface board, torque measurer, torque controller, torque sensor, magnetic powder brake, photoelectric encoder and spinner velocity detector, described machine tool chief axis is all connected with the main shaft of described motor with described magnetic powder brake, described torque sensor is installed on the position corresponding with described electric machine main shaft and for measuring the torque of described motor, the signal output part of described torque sensor is connected with the signal input part of described torque measurer, the signal output part of described torque measurer is connected with the dtc signal input end of described test computer by described torque measurement interface board, described photoelectric encoder is installed on the position corresponding with described electric machine main shaft and for measuring the drive displacement of described motor, the signal output part of described photoelectric encoder is connected with the position displacement signal input part of described test computer by described photoelectric encoder interface board, described spinner velocity detector is installed on the position corresponding with described machine shaft and for detection of the speed of described motor, the signal output part of described spinner velocity detector is connected with the rate signal input end of described test computer by described speed detector interface board, the torque control signal output terminal of described test computer is connected with the control signal input end of described torque controller by described torque control interface plate, the control signal output terminal of described torque controller is connected with the control signal input end of described magnetic powder brake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210373433.2A CN103712646A (en) | 2012-09-29 | 2012-09-29 | Performance testing device for main-shaft servo system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210373433.2A CN103712646A (en) | 2012-09-29 | 2012-09-29 | Performance testing device for main-shaft servo system |
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| Publication Number | Publication Date |
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| CN103712646A true CN103712646A (en) | 2014-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210373433.2A Pending CN103712646A (en) | 2012-09-29 | 2012-09-29 | Performance testing device for main-shaft servo system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106909125A (en) * | 2016-12-26 | 2017-06-30 | 武汉华中数控股份有限公司 | A kind of monitoring system and method for motor processability index |
| CN109556660A (en) * | 2018-12-29 | 2019-04-02 | 浙江方德机器人系统技术有限公司 | A kind of small machine comprehensive performance automatic checkout system |
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| CN201110888Y (en) * | 2007-12-14 | 2008-09-03 | 大庆供电电器设备有限公司 | Self-starting rare-earth permanent magnet rotor type electric motor microcomputer integrated test apparatus |
| CN201638082U (en) * | 2010-03-23 | 2010-11-17 | 南京工程学院 | Performance test bed for servo system |
| CN102353538A (en) * | 2011-10-11 | 2012-02-15 | 华中科技大学 | Device for testing drive shaft |
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2012
- 2012-09-29 CN CN201210373433.2A patent/CN103712646A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201110888Y (en) * | 2007-12-14 | 2008-09-03 | 大庆供电电器设备有限公司 | Self-starting rare-earth permanent magnet rotor type electric motor microcomputer integrated test apparatus |
| CN201638082U (en) * | 2010-03-23 | 2010-11-17 | 南京工程学院 | Performance test bed for servo system |
| CN102353538A (en) * | 2011-10-11 | 2012-02-15 | 华中科技大学 | Device for testing drive shaft |
Non-Patent Citations (1)
| Title |
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| 王晓冬: "低转速大功率电机微机自动测试系统", 《微电机》, vol. 29, no. 3, 31 December 1996 (1996-12-31), pages 31 - 34 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106909125A (en) * | 2016-12-26 | 2017-06-30 | 武汉华中数控股份有限公司 | A kind of monitoring system and method for motor processability index |
| CN109556660A (en) * | 2018-12-29 | 2019-04-02 | 浙江方德机器人系统技术有限公司 | A kind of small machine comprehensive performance automatic checkout system |
| CN109556660B (en) * | 2018-12-29 | 2024-04-12 | 浙江方德机器人系统技术有限公司 | Automatic detection system for comprehensive performance of small motor |
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Application publication date: 20140409 |