CN102032846B - Pressure calibration device for coil caliper rule of motor - Google Patents
Pressure calibration device for coil caliper rule of motor Download PDFInfo
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- CN102032846B CN102032846B CN2011100001496A CN201110000149A CN102032846B CN 102032846 B CN102032846 B CN 102032846B CN 2011100001496 A CN2011100001496 A CN 2011100001496A CN 201110000149 A CN201110000149 A CN 201110000149A CN 102032846 B CN102032846 B CN 102032846B
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- coil
- pressure
- force sensor
- signal
- calliper rule
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Abstract
The invention provides a pressure calibration device for a coil caliper rule of a motor, comprising a test stand, a strain type force sensor, a pressure signal collection module, a signal processor and a display, wherein a bracket is arranged on the test stand; the coil caliper rule is fixed on the bracket; the strain type force sensor is arranged in a measurement space of the coil caliper rule and used for detecting the clamping force of the coil caliper rule; the pressure signal collection module converts a pressure signal detected by the strain type force sensor into a digital signal and sends the digital signal to the signal processor to be processed; and an output signal of the signal processor is sent to the display to be displayed. The device can precisely calibrate the preset pressure of the coil caliper rule and ensure that the thickness detection value of the coil insulating layer is real and believable.
Description
Technical field
The present invention relates to a kind of measurement instrument, be specifically related to a kind of pressure calibrating installation of motor coil slide calliper rule.
Background technology
The winding of large-size machine adopts formed coil, produces in batches by the coil workshop is specialized, is sent to the making-up shop again; Pack in the wire casing of motor, the coil insulation layer thickness is a key parameter, must accurately measure the thickness of insulating layer value under certain pressure; Sectional dimension is big; The wire casing of can not packing into, size is little, can in wire casing, become flexible again.In order to guarantee the quality of coil, will test to the sectional dimension of coil in the coil workshop, and method is the sectional dimension with the kind of calliper coil; Because the insulation course of coil surface is an organic material; Flexible, during with kind of calliper coil section size, energy measurement goes out the size in a certain specific holding force state lower coil only; So the coil slide calliper rule are a kind of special-purpose slide calliper rule, have boosting mechanism.
The coil slide calliper rule that two kinds of structures are arranged at present, a kind of is on the movable measuring jaw of slide calliper rule, to be provided with afterburning cylinder and displacement transducer, by cylinder holding force is provided, by displacement transducer magnetic test coil size.
Another kind is the pressure vernier caliper, and its vernier scale is provided with energizing spring; By spring holding force is provided, through vernier read coil size.
When above-mentioned coil slide calliper rule use, to examine and determine with calibrating installation earlier, demarcate the preset pressure of cylinder or spring.Method is through the aperture of adjustment cylinder charge valve, demarcates cylinder pressure; Through the initial length of screw adjustment spring, demarcate spring pressure.
The pressure calibrating installation of existing coil pressure slide calliper rule is as shown in Figure 4; It is made up of worktable 1, tensimeter 2, and during calibrating, the movable measuring jaw 4 of coil slide calliper rule 3 is lived on the dynamometry crown of tensimeter 2; Energizing spring by slide calliper rule is afterburning, comes nominal pressure through manometric reading.The problem that this device exists is:
1. the precision of mechanical compression table is limited, causes coil interface dimensions measuring accuracy low;
2. can only examine and determine the coil vernier caliper of spring-loaded;
3. this device volume is huge, inconvenient operation.
Summary of the invention
The object of the invention provides a kind of motor coil caliper pressure calibrating installation, the preset pressure that can accurately demarcate slide calliper rule.
Technical scheme of the present invention is:
A kind of motor coil caliper pressure calibrating installation comprises testing table, strain force sensor, pressure signal acquisition module, signal processor, display; Said testing table is provided with support, and the coil slide calliper rule are fixed on this support; Said strain force sensor is arranged in the measurement space of coil slide calliper rule; The holding force that is used for the magnetic test coil slide calliper rule; The pressure signal acquisition module converts the detected pressure signal of strain force sensor to digital signal; Send into signal processor processes, the output signal of signal processor is sent into display and is shown.
Said strain force sensor is made up of mount pad, resistance strain gage and lead-in wire thereof, and said mount pad has the dynamometry workplace of pair of parallel, and said resistance strain gage is arranged on this dynamometry workplace.
Said resistance strain gage is the bridge-type foil gauge, and in dynamometry scope 0～60N, 0～40 ℃ of scope of environment temperature, its resolution is 0.1N.
Beneficial effect of the present invention:
Because the force transducer precision of this device is high, accurately the preset pressure of calibration coil pressure slide calliper rule makes to coil section size detection value genuine and believable.Device volume is little, and is easy to operate.Versatility is arranged, can examine and determine the coil slide calliper rule of any boosting mechanism.
Description of drawings
Fig. 1 is the structural representation of this calibrating installation;
Fig. 2 is the force transducer structural representation;
Fig. 3 is the topology diagram of this calibrating installation;
Fig. 4 is the structural representation of existing calibrating installation.
Embodiment
Referring to Fig. 1, Fig. 2, Fig. 3.
This coil caliper pressure calibrating installation comprises testing table 1, strain force sensor 2, pressure signal acquisition module 3, signal processor 4, display 5.Testing table 1 is provided with support 6, is used for fixing coil pressure slide calliper rule 7.
The principal feature of this device is to adopt strain force sensor 2, and it is by mount pad 2.1, resistance strain gage 2.2 and go between and 2.3 form, and mount pad 2.1 has the dynamometry workplace of pair of parallel, and resistance strain gage 2.2 is arranged on this dynamometry workplace.Resistance strain gage 2.2 is the bridge-type foil gauge, dynamometry scope 0～60N, and 0～40 ℃ of environment temperature, best in dynamometry scope 10～60N linearity, its resolution is 0.1N, measuring accuracy is very high.
The method of application of this device:
Earlier coil slide calliper rule 7 are fixed on the support 6, strain force sensor 2 are placed the measurement space of coil slide calliper rule 7 again, two surveying work faces of sensor 2 are the fixedly measuring jaw and the movable measuring jaw of corresponding slide calliper rule respectively; Move movable measuring jaw; Sensor 2 is clamped, adjusted the boosting mechanism of slide calliper rule again, make the power that acts on the force transducer 2 meet design load; Lock boosting mechanism then, promptly accomplish and demarcate.If boosting mechanism is a spring, then, make the elastic force of spring meet design load through the initial length of adjustment screw adjustment spring, if boosting mechanism is a cylinder, then adjust the aperture of charging valve, make the pressure of cylinder meet design load.So this device can be examined and determine the coil slide calliper rule of various boosting mechanisms.
Its measuring principle is:
Pressure signal acquisition module 3 converts strain force sensor 2 detected pressure signals to digital signal, sends into signal processor 4 and handles, and the output signal of signal processor 4 is sent into display 5 and shown.
Claims (3)
1. a motor coil caliper pressure calibrating installation is characterized in that: comprise testing table, strain force sensor, pressure signal acquisition module, signal processor, display; Said testing table is provided with support, and the coil slide calliper rule are fixed on this support; Said strain force sensor is arranged in the measurement space of coil pressure slide calliper rule; The holding force that is used for the magnetic test coil slide calliper rule; The pressure signal acquisition module converts the detected pressure signal of strain force sensor to digital signal; Send into signal processor processes, the output signal of signal processor is sent into display and is shown; Said strain force sensor is made up of mount pad, resistance strain gage and lead-in wire thereof, and said mount pad has the dynamometry workplace of pair of parallel, and said resistance strain gage is arranged on this dynamometry workplace.
2. motor coil caliper pressure calibrating installation according to claim 1 is characterized in that: said resistance strain gage is the bridge-type foil gauge, and its resolution is 0.1N, dynamometry scope 0～60N.
3. motor coil caliper pressure calibrating installation according to claim 2 is characterized in that: said dynamometry scope 10～60N.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100001496A CN102032846B (en) | 2011-01-04 | 2011-01-04 | Pressure calibration device for coil caliper rule of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100001496A CN102032846B (en) | 2011-01-04 | 2011-01-04 | Pressure calibration device for coil caliper rule of motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102032846A CN102032846A (en) | 2011-04-27 |
| CN102032846B true CN102032846B (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100001496A Active CN102032846B (en) | 2011-01-04 | 2011-01-04 | Pressure calibration device for coil caliper rule of motor |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102989840A (en) * | 2012-12-21 | 2013-03-27 | 安徽巨一自动化装备有限公司 | Pressure calibrator for binding robot |
| CN103913263A (en) * | 2014-04-04 | 2014-07-09 | 国网山东桓台县供电公司 | High voltage isolating switch touch finger pressure tester |
| CN105784213A (en) * | 2016-05-04 | 2016-07-20 | 江南大学 | Force measurement device for digital display calliper based on piezoelectric material |
| CN106225663A (en) * | 2016-07-28 | 2016-12-14 | 北京金风科创风电设备有限公司 | Verification device for strain test |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201069402Y (en) * | 2007-07-30 | 2008-06-04 | 伊玛精密电子（苏州）有限公司 | Intelligent pressure sensor |
| CN201945274U (en) * | 2011-01-04 | 2011-08-24 | 东方电气集团东方电机有限公司 | Pressure calibration device for caliper of motor coil |
-
2011
- 2011-01-04 CN CN2011100001496A patent/CN102032846B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201069402Y (en) * | 2007-07-30 | 2008-06-04 | 伊玛精密电子（苏州）有限公司 | Intelligent pressure sensor |
| CN201945274U (en) * | 2011-01-04 | 2011-08-24 | 东方电气集团东方电机有限公司 | Pressure calibration device for caliper of motor coil |
Non-Patent Citations (2)
| Title |
|---|
| 史常明.《电机线圈游标卡尺检定规程的编制》.《东方电机》.1998, * |
| 国家质量监督检验检疫总局.《电机线圈游标卡尺》.《中华人民共和国国家计量检定规程JJG566-2010》.2010, * |
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| CN102032846A (en) | 2011-04-27 |
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