CN102393267A - Cutting torque measuring method and cutting torque measuring device - Google Patents
Cutting torque measuring method and cutting torque measuring device Download PDFInfo
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- CN102393267A CN102393267A CN2011103507052A CN201110350705A CN102393267A CN 102393267 A CN102393267 A CN 102393267A CN 2011103507052 A CN2011103507052 A CN 2011103507052A CN 201110350705 A CN201110350705 A CN 201110350705A CN 102393267 A CN102393267 A CN 102393267A
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Abstract
The invention relates to the field of detection technology, in particular to a cutting torque measuring method and a cutting torque measuring device. The cutting torque measuring method comprises the following steps: first, measuring the mechanical torque performance curve family of a main shaft motor through a dynamometer according to the performance of the main shaft motor; second, detecting the rotational speed or the current of the main shaft motor through a revolution speed transducer or a current sensor; and third, looking up corresponding output torque through application software. The cutting torque measuring device comprises the current sensor, the revolution speed transducer, a signal processing and collecting system, and a computer processing system, wherein the current sensor and the revolution speed transducer send collected signals to the computer processing system through the signal processing and collecting system; and the computer processing system comprises the cutting torque measuring device software in which the mechanical torque performance curve family of the main shaft motor is stored. The invention has the advantages that the measuring procedure is simplified; the operation is simple; the measuring cost is low; and the practicability is high.
Description
Technical field
The present invention relates to the detection technique field, particularly a kind of cutting moment of torque measuring method and device.
Background technology
In the machine tooling process; Through measurement to the spindle motor of machine tool cutting moment of torque that cutter bears; The loading condition that not only can reflect lathe; And can both provide data refer and direction to instruct to lathe, spindle motor and tool structures research and performance evaluation, therefore spindle motor being carried out the cutting moment of torque measurements is necessity very.
The cutting moment of torque measuring method that generally adopts at present is contactless torque sensor method or strain gauge method, the non-contact torque sensor method, and complex structure, and also it is high to measure cost, in practical application, is very limited; And strain gauge method is very high, affected by environment in addition bigger owing to operator's level is required, and practicality also has very big limitation.Therefore need research a kind of new cutting moment of torque measuring method and device,, low, the practical requirement of measurement cost simple to operate to satisfy.
Summary of the invention
The invention provides a kind of cutting moment of torque measuring method and device that is different from traditional measurement method, realized simple to operate, low, the practical requirement of measurement cost.
In order to solve the problems of the technologies described above, the present invention realizes through following technical scheme:
A kind of cutting moment of torque measuring method comprises the steps:
A. according to the spindle motor self performance, measure the mechanical torque performance curve bunch of spindle motor by dynamometer machine, comprise " rotating speed and moment of torsion " or " electric current and moment of torsion " relation curve bunch;
B. processing is opened, and is gone out the rotating speed or the electric current of spindle motor by speed probe or current sensor senses;
C. find out and rotating speed that records or the corresponding output torque of current data from the mechanical torque performance curve of spindle motor bunch through application software.
Preferably, the mechanical torque performance curve described in the said method bunch, according to the motor self performance, the asynchronous machine of divided ring control can be measured the relation curve bunch of " rotating speed and moment of torsion " or " electric current and moment of torsion "; The synchronous motor of divided ring control, closed-loop control synchronously and asynchronous machine can measure the relation curve bunch of " electric current and moment of torsion ".
Preferably, after step C, also comprise in the said method:
D. draw the test result curve, comprise " cutting moment of torque-speed curves " or " cutting moment of torque-current curve " and " cutting moment of torque-time curve ".
A kind of cutting moment of torque measurement mechanism is made up of current sensor, speed probe, signal Processing and acquisition system, computer processing system, and current sensor is corresponding to the spindle motor of system under test (SUT) and the circuit between the motor driver; Speed probe is corresponding to the rotating part of spindle motor; Current sensor and speed probe are connected in computer processing system through signal Processing and acquisition system; Computer processing system includes application software.
Beneficial effect of the present invention is: electric current or the rotating speed that in the actual measurement process, only need measure motor; The electromechanics torsional performance curve family of measuring when utilizing zero load; Can obtain the cutting moment of torque; Promptly under the condition that does not need expensive torque sensor, just obtain the cutting moment of torque in the process, simplified process of measurement greatly, simple to operate, to measure cost low, practical.
Description of drawings
Fig. 1 is the schematic diagram of cutting moment of torque measuring method of the present invention and device.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:
As shown in Figure 1, a kind of cutting moment of torque measurement mechanism of the present invention is made up of with acquisition system 5, computer processing system 6 current sensor 3, speed probe 4, signal Processing, and motor driver 1, spindle motor 2, cutter 7 and workpiece 8 belong to system under test (SUT).Wherein, Current sensor 3 is corresponding to the circuit setting between motor driver 1 and the spindle motor 2; Speed probe 4 is corresponding to the rotating part of spindle motor 2; And current sensor 3 is connected with computer processing system 6 through signal Processing and acquisition system 5 with speed probe 4, and the application software that is used for handling measurement data is equipped with in the inside of computer processing system 6.
Embodiment 1: the method for measuring the asynchronous spindle motor cutting moment of torque of open loop control.
Can select during measurement in current sensor 3 or the speed probe 4 one of come work, in the present embodiment, select with speed probe 4 work, detailed process is following:
1) before measuring the cutting moment of torque, measures the relation curve bunch of " rotating speed and the moment of torsion " of spindle motor 2 earlier with dynamometer machine, and it is write in the application software;
2) start processing and measure, detect the rotating speed of spindle motor, after signal Processing and acquisition system 5 processing, send data to computer processing system 6 by speed probe 4;
3) in the relation curve of existing " rotating speed and moment of torsion " bunch, find out the output torque corresponding by application software with the rotary speed data of measuring;
4) draw out " cutting moment of torque-speed curves " and " cutting moment of torque-time curve " of spindle motor.
Embodiment 2: the method for measuring the asynchronous spindle motor cutting moment of torque of closed-loop control.
In the present embodiment, can only select current sensor 3 to work, so speed probe 4 can cut out, detailed process is following:
1) before measuring the cutting moment of torque, measures the relation curve bunch of " electric current and the moment of torsion " of spindle motor 2 earlier with dynamometer machine, and it is write in the application software;
2) start processing and measure, detect the electric current of spindle motor, after signal Processing and acquisition system 5 processing, send data to computer processing system 6 by current sensor 3;
3) in the relation curve of existing " electric current and moment of torsion " bunch, find out the output torque corresponding by application software with measured current data;
4) draw out " cutting moment of torque-current curve " and " cutting moment of torque-time curve " of spindle motor.
The main performance index of above embodiment is following:
The mechanical torque performance curve bunch precision that dynamometer machine tests out spindle motor is ± 0.5%;
Mechanical rotation tachometric survey precision is ± 1%;
Electric system current measurement precision is ± 1%.
Claims (4)
1. a cutting moment of torque measuring method is characterized in that: comprise the steps:
A. according to the spindle motor self performance, measure the mechanical torque performance curve bunch of spindle motor by dynamometer machine, comprise " rotating speed and moment of torsion " or " electric current and moment of torsion " relation curve bunch;
B. processing is opened, and is gone out the rotating speed or the electric current of spindle motor by speed probe or current sensor senses;
C. find out and rotating speed that records or the corresponding output torque of current data from the mechanical torque performance curve of spindle motor bunch through application software.
2. a kind of cutting moment of torque measuring method according to claim 1 is characterized in that: the mechanical torque performance curve of measuring in the steps A bunch comprises following situation:
The asynchronous machine of divided ring control can be measured the relation curve bunch of " rotating speed and moment of torsion " or " electric current and moment of torsion ";
The synchronous motor of divided ring control, closed-loop control synchronously and asynchronous machine can measure the relation curve bunch of " electric current and moment of torsion ".
3. a kind of cutting moment of torque measuring method according to claim 1 and 2 is characterized in that: after step C, also comprise:
D. draw out the test result curve, comprise " cutting moment of torque-speed curves " or " cutting moment of torque-current curve " and " cutting moment of torque-time curve ".
4. cutting moment of torque measurement mechanism; It is characterized in that: it is made up of current sensor, speed probe, signal Processing and acquisition system, computer processing system, and current sensor is corresponding to the spindle motor of system under test (SUT) and the circuit between the motor driver; Speed probe is corresponding to the rotating part of spindle motor; Current sensor and speed probe are connected in computer processing system through signal Processing and acquisition system; Computer processing system includes application software.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103507052A CN102393267A (en) | 2011-11-09 | 2011-11-09 | Cutting torque measuring method and cutting torque measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103507052A CN102393267A (en) | 2011-11-09 | 2011-11-09 | Cutting torque measuring method and cutting torque measuring device |
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| CN102393267A true CN102393267A (en) | 2012-03-28 |
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| CN2011103507052A Pending CN102393267A (en) | 2011-11-09 | 2011-11-09 | Cutting torque measuring method and cutting torque measuring device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3333671A1 (en) * | 1983-09-17 | 1985-04-18 | System Elektronik Ihlemann GmbH, 3300 Braunschweig | Method and device for determining the r.p.m./torque characteristic of an engine of a motor vehicle |
| US6008605A (en) * | 1997-08-13 | 1999-12-28 | Dbt Deutsche Bergbau-Technik Gmbh | Method for determining the active power of asynchronous electric motors |
| CN102109401A (en) * | 2009-12-27 | 2011-06-29 | 娄甫君 | Torsion tester for pencil sharpener |
| CN202329887U (en) * | 2011-11-09 | 2012-07-11 | 北京精雕精密机械制造有限公司 | Device for measuring cutting torque |
-
2011
- 2011-11-09 CN CN2011103507052A patent/CN102393267A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3333671A1 (en) * | 1983-09-17 | 1985-04-18 | System Elektronik Ihlemann GmbH, 3300 Braunschweig | Method and device for determining the r.p.m./torque characteristic of an engine of a motor vehicle |
| US6008605A (en) * | 1997-08-13 | 1999-12-28 | Dbt Deutsche Bergbau-Technik Gmbh | Method for determining the active power of asynchronous electric motors |
| CN102109401A (en) * | 2009-12-27 | 2011-06-29 | 娄甫君 | Torsion tester for pencil sharpener |
| CN202329887U (en) * | 2011-11-09 | 2012-07-11 | 北京精雕精密机械制造有限公司 | Device for measuring cutting torque |
Non-Patent Citations (2)
| Title |
|---|
| 徐培德: "车床切削主分力、切削扭矩、切削功率的近似测量方法", 《机床》 * |
| 高为宫: "轧机扭矩监测中的数据采集与无线数传技术研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
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Application publication date: 20120328 |