CN103499324A - Assisted testing system of three-wire set - Google Patents
Assisted testing system of three-wire set Download PDFInfo
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- CN103499324A CN103499324A CN201310468862.2A CN201310468862A CN103499324A CN 103499324 A CN103499324 A CN 103499324A CN 201310468862 A CN201310468862 A CN 201310468862A CN 103499324 A CN103499324 A CN 103499324A
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Abstract
The invention relates to an assisted testing system of a three-wire set. The assisted testing system comprises a length gauge, a length gauge force measurement adjuster and a three-wire set calibrating device, wherein the three-wire set calibrating device comprises a measuring head and a three-wire set measuring worktable; the three-wire set measuring worktable is a single-rib worktable; the measuring head is arranged on the end part of the length gauge and is an axe-shaped measuring head; a three-wire set to be detected is arranged between the measuring head and the single-rib worktable; and the length gauge force measurement adjuster controls the length gauge and drives the measuring head to carry out assisted testing by the length gauge. The invention provides the assisted testing system of the three-wire set, which is small in measurement errors and controllable in force measurement.
Description
Technical field
The invention belongs to field of measuring technique, relate to a kind of three pin auxiliary testing systems.
Background technology
While at present three pins being tested, common system is gauging machine or optics meter and gauge block, the combined system of worktable.
When native system is tested three pins, need length gauge and three pin calibration operation platforms to assist.
Length gauge used is the C2500 length gauge, it is a length of the raster pattern with the scalable gauge head force cell of being produced by HEIDENHAIN company, the flexible survey process of touching of its gauge head is by circuit, automatically to be controlled fully, and two buttons and three sections switches are arranged on its control instrument;
Wherein:
The syllogic switch is used for selecting dynamometry, according to it, is to use instructions, the dynamometry of syllogic switch difference corresponding 0.75N, 1N and 1.5N.
The left button function is to regain measuring staff (the sensor side head being removed from the measured piece surface place or mobile measured part).Right keypress function, stretch out measuring staff, until its gauge head and tested part Surface Contact, and keep selected dynamometry.Now gauge head and measured piece Surface Contact, the length of stretching out according to measuring staff, read the position data of measured point.
Be not difficult to find, original control instrument has three dynamometry gears, is respectively 0.75N, 1N and 1.5N; In other words, the continuous regulating power of C2500 length gauge dynamometry is poor.And according to the associated materials requirement, while for the part of unlike material, carrying out contact type measurement, its dynamometry size is that there are strict requirements, simultaneously when measuring the part of different geometries, for example during very thin thin-wall part, the control of its measurement is also very important (dynamometry is crossed large deformation and become large).This just requires to have a kind of instrument that can adjust as required required dynamometry when measuring.And the Heidenhain length gauge appearance time is not long, its original controller is directly provided with length gauge by the said firm in addition, current understanding and consulting by all means, no matter be the said firm or other groups or individual, all the unactual instrument that has the continuous regulating power with this kind of length gauge dynamometry.
The instrument that existing three pin calibratings commonly used adopt mostly is gauging machine, there is no special-purpose gauge head and worktable, and existing designing in order to examine and determine the extraordinary gauge block of flatness with the muscle worktable for gauge block measurement, and all for vertical optical meter, the band muscle worktable of calibration instrument for gauge block etc. has the materials such as metal and pottery, and shape has square and circular.And be with the muscle worktable to divide, there isd dividing of single reinforcement and many muscle; The spheric probe of several worktable and outfit thereof and plane gauge head all design in order to complete gauge block measurement, and its function is to reduce the gauge block measurement error that the gauge block distortion causes as far as possible.Therefore all adopt many multiple operation muscle to form a plane with the carrying gauge block, " single reinforcement worktable " wherein not only has single muscle, and refers to that intermediate ribs exceeds the worktable of other muscle 20um left and right, purpose is to prevent the impact of gauge block distortion on gauge block measurement.
But, in three pin calibratings, above these worktable are all inapplicable, three pins, as a kind of pitch diameter of thread calibrating measurer, have cylindrical structure; Known according to its use-pattern and inspection rule again, its cylindricity, diameter is had relatively high expectations, and linearity requires lower.
Use existing band muscle worktable that two problems are arranged:
At first, the uncertainty of measurement of being introduced by the straightness error of three pins own is excessive, is about to more straightness error and has been incorporated in the diameter measurement result.Due to structure and the use-pattern of three pins, cause the bad situation of three pin ubiquity linearitys.When using traditional band muscle worktable to be measured, because the several frequently seen distortion of three pins causes measuring error.For example, three pin middle parts are arch, when there is the carrying muscle both sides, easily form space, and particularly some become to reverse three pins of shape, even survey on seat in tradition three pins that overturn, can not eliminate the error caused due to built on stilts.
Secondly, original worktable is used inconvenience.The length of three pins is commonly the 50mm left and right, according to the requirement of inspection rule, its calibrating during diameter in order to reduce the impact of deviation from circular from measurement result, need tested three pins of rotated several times vertically to be measured, when use has the band muscle worktable of large loading end, three pins can be paid worktable by note, and rotating operation is more difficult, three pins are whole to be carried on worktable, can only carry out turning operation with tweezers.
Summary of the invention
In order to solve the above-mentioned technical matters existed in background technology, the invention provides the three pin auxiliary testing systems that a kind of measuring error is little and dynamometry is controlled.
Technical solution of the present invention is: the invention provides a kind of three pin auxiliary testing systems, comprise length gauge, length gauge dynamometry regulator and three pin calibrating installations, its special character is: described three pin calibrating installations comprise gauge head and three pin surveying work platforms; Described three pin surveying work platforms are single reinforcement worktable; Described gauge head is arranged on the end of length gauge; Described gauge head is axe type gauge head; Three pins to be measured are placed between gauge head and single reinforcement worktable; Described length gauge dynamometry regulator is controlled length gauge and is driven gauge head by length gauge and carries out subtest.
Above-mentioned single reinforcement worktable comprises fundamental plane and is arranged on the fin on fundamental plane; Described fin forms the single reinforcement structure on fundamental plane; Three pins to be measured axially and the fin place be axially nonparallel, and three pins to be measured are placed between gauge head and fin.
Distance between the highest of above-mentioned fin top and fundamental plane, not higher than 0.3mm, is not less than 0.25mm; The flatness error of described fundamental plane is not higher than 0.1um.
Above-mentioned single reinforcement worktable also comprise be arranged on the fin one or both sides for preventing the auxiliary plummer of three pin landings.
Above-mentioned axe type gauge head is provided with strip with the position contacted of three pins to be measured and measures face or banded measurement face.
The length of above-mentioned strip measurement face or banded measurement face is not less than the diameter of three pins; The width that described strip is measured face or banded measurement face is not more than 0.2mm.
Above-mentioned length gauge dynamometry regulator is the length dynamometry regulator with continuous regulating power.
Above-mentioned length gauge dynamometry regulator comprises control chip, voltage follower and rotary encoder; Described rotary encoder accesses voltage follower by control chip; Described voltage follower drives gauge head by length gauge and carries out subtest.
Above-mentioned voltage follower comprises integrating circuit and pulse-width modulator; Described control chip is connected with length gauge by integrating circuit and pulse-width modulator successively; Described control chip is single-chip microcomputer or CPU.
The invention provides a kind of three pin auxiliary testing systems, this system in terms of existing technologies, has following improvement:
The first, independent research a set of three pin calibrating installations, this device comprises axe type gauge head and single reinforcement worktable; Axe type gauge head has the band shape of width 0.2mm length 5mm and measures face, and the convenient single reinforcement worktable that coordinates detects columned three pins; The single reinforcement worktable be by with measurement face be the ribbon measurement range that the single reinforcement splendid by flatness and axe type gauge head form, when contacting with column type three pins, can guarantee the minimal-contact face, and guarantee when three pins move forward and backward not affect measurement result; Owing to only there being a work muscle, the straightness error of its three pin can't affect diameter measurement; While using single muscle worktable provided by the present invention, because single reinforcement worktable itself is narrow, can be with hand very easily from the both sides direct control.
The second, independent research a set of nonrated length dynamometry regulator with continuous regulating power.This length dynamometry regulator is the controlled voltage follower that the PWM ripple coordinates integrating circuit to form, and its master control adopts singlechip chip, by two buttons and a rotary encoder access chip; Directly processed the input of button and rotary encoder by single-chip microcomputer; The transformational relation of contrast dynamometry-voltage-PWM ripple dutycycle, by required dynamometry, the PWM ripple of corresponding specific duty outputs to length gauge, and the conversion of direction directly realizes by the conversion output polarity.When using the Heidenhain length gauge to carry out surveying work, measurement requirement according to tested part, this length dynamometry regulator, control length gauge provided by the present invention touches survey with specific dynamometry, thereby obtain more accurate measurement result, rotary encoder wherein can adjust arbitrarily with the step pitch that is not more than 0.05N the dynamometry oneself needed from 0.3N to 5N, upwards pull while controlling rocking bar, length gauge gauge head retraction, pull downwards while controlling rocking bar, the length gauge gauge head stretches out with the dynamometry of setting, the impact of the measurement result accuracy of part length being measured by the dynamometry of Single-chip Controlling output, measurement different materials that can be more accurate and safe, the part of different geometrical size.
Based on above content, the present invention can significantly improve efficiency and the precision of three pin calibration operations.
The accompanying drawing explanation
Fig. 1 is the structural representation of facing of single reinforcement worktable of the present invention;
Fig. 2 is the structural representation of gauge head of the present invention;
Fig. 3 is schematic diagram when in prior art, gauge head assists to coordinate with three pin calibration operation platforms;
Fig. 4 is the schematic diagram of the present invention while adopting gauge head to assist to coordinate with the single reinforcement worktable;
Fig. 5 is the circuit frame schematic diagram of length gauge dynamometry regulator of the present invention;
Wherein:
The 1-fin; The 2-fundamental plane; The 3-gauge head; The 4-length gauge; 5-three pins to be measured; The 6-control chip; The 7-rotary encoder; The 8-voltage follower; The 81-integrating circuit; The 82-pulse-width modulator.
Embodiment
Referring to Fig. 1 and Fig. 2, the invention provides a kind of three pin auxiliary testing systems, comprise length gauge 4, length gauge dynamometry regulator and three pin calibrating installations, this three pins calibrating installation comprises gauge head 3 and three pin surveying work platforms; Three pin surveying work platforms are single reinforcement worktable; Gauge head 3 is arranged on the end of length gauge 4; Gauge head 3 is axe type gauge heads of difference and traditional spheroidal gauge head and plane gauge head; Three pins 5 to be measured are placed between gauge head 3 and single reinforcement worktable; Length gauge dynamometry regulator is controlled length gauge 4 and is driven gauge head 3 by length gauge 4 and carries out subtest.
The single reinforcement worktable comprises fundamental plane 2 and is arranged on the fin 1 on fundamental plane 2; Fin 1 forms the single reinforcement structure on fundamental plane 2; Three pins 5 to be measured axially and fin 1 place be axially nonparallel, and three pins 5 to be measured are placed between gauge head 3 and fin 1.
Distance between the highest of fin 1 top and fundamental plane 2 is not higher than 0.3mm; The flatness of fundamental plane 2 is not less than 0.1um.
The single reinforcement worktable also comprise be arranged on fin 1 one or both sides for preventing the auxiliary plummer of three pin landings.
Gauge head 3 is axe type gauge heads 3, and axe type gauge head 3 is provided with strip with the position contacted of three pins 5 to be measured and measures face or banded measurement face.
The length of strip measurement face or banded measurement face is not less than the diameter of three pins; The width that strip is measured face or banded measurement face is not more than 0.2mm.
Length gauge dynamometry regulator is the length dynamometry regulator with continuous regulating power.
Referring to Fig. 3, be while using existing band muscle worktable to be measured, the error schematic diagram caused due to the several frequently seen distortion of three pins.
Referring to Fig. 4, during the single reinforcement worktable by with measurement face be the ribbon measurement range that the single reinforcement splendid by flatness and axe type gauge head form, while being column type three pins contact, can guaranteeing the minimal-contact face, and guarantee when three pins move forward and backward not affect measurement result.Owing to only there being a work muscle, the straightness error of its three pin can't affect diameter measurement.
Referring to Fig. 5, length gauge dynamometry regulator comprises control chip 6, voltage follower 8 and rotary encoder 7; Rotary encoder 7 is by control chip 6 access voltage followers 8; Voltage follower 8 drives gauge head 3 by length gauge 4 and carries out subtest.
Voltage follower 8 comprises integrating circuit 81 and pulse-width modulator 82; Control chip 6 is connected with length gauge 4 by integrating circuit 81 and pulse-width modulator 82 successively; Control chip 6 is single-chip microcomputer or CPU; Integrating circuit 81 is various integrating circuit 81 that electricity field is commonly used.
Claims (9)
1. a pin auxiliary testing system, comprise length gauge, length gauge dynamometry regulator and three pin calibrating installations, it is characterized in that: described three pin calibrating installations comprise gauge head and three pin surveying work platforms; Described three pin surveying work platforms are single reinforcement worktable; Described gauge head is arranged on the end of length gauge; Described gauge head is axe type gauge head; Three pins to be measured are placed between gauge head and single reinforcement worktable; Described length gauge dynamometry regulator is controlled length gauge and is driven gauge head by length gauge and carries out subtest.
2. three pin auxiliary testing systems according to claim 1, it is characterized in that: described single reinforcement worktable comprises fundamental plane and is arranged on the fin on fundamental plane; Described fin forms the single reinforcement structure on fundamental plane; Three pins to be measured axially and the fin place be axially nonparallel, and three pins to be measured are placed between gauge head and fin.
3. three pin auxiliary testing systems according to claim 2 is characterized in that: the distance between the highest of described fin top and fundamental plane, not higher than 0.3mm, is not less than 0.25mm; The flatness error of described fundamental plane is not higher than 0.1um.
4. three pin auxiliary testing systems according to claim 3 is characterized in that: described single reinforcement worktable also comprise be arranged on the fin one or both sides for preventing the auxiliary plummer of three pin landings.
5. according to claim 1 or 2 or 3 or 4 described three pin auxiliary testing systems, it is characterized in that: described axe type gauge head is provided with strip with the position contacted of three pins to be measured and measures face or banded measurement face.
6. three pin auxiliary testing systems according to claim 5 is characterized in that: the length that described strip is measured face or banded measurement face is not less than the diameter of three pins; The width that described strip is measured face or banded measurement face is not more than 0.2mm.
7. three pin auxiliary testing systems according to claim 6, it is characterized in that: described length gauge dynamometry regulator is the length dynamometry regulator with continuous regulating power.
8. three pin auxiliary testing systems according to claim 7, it is characterized in that: described length gauge dynamometry regulator comprises control chip, voltage follower and rotary encoder; Described rotary encoder accesses voltage follower by control chip; Described voltage follower drives gauge head by length gauge and carries out subtest.
9. three pin auxiliary testing systems according to claim 8, it is characterized in that: described voltage follower comprises integrating circuit and pulse-width modulator; Described control chip is connected with length gauge by integrating circuit and pulse-width modulator successively; Described control chip is single-chip microcomputer or CPU.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310468862.2A CN103499324B (en) | 2013-09-30 | 2013-09-30 | Assisted testing system of three-wire set |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310468862.2A CN103499324B (en) | 2013-09-30 | 2013-09-30 | Assisted testing system of three-wire set |
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| CN103499324A true CN103499324A (en) | 2014-01-08 |
| CN103499324B CN103499324B (en) | 2016-08-31 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3623362A1 (en) * | 1986-07-11 | 1988-01-21 | Opel Adam Ag | Measuring and testing device for determining the arc length of semicircular bearing shells (bushes) |
| CN2771812Y (en) * | 2005-03-18 | 2006-04-12 | 许晓华 | Assisting tool set for three-needle method measuring worm distance |
| CN101476873A (en) * | 2009-01-05 | 2009-07-08 | 哈尔滨东安发动机（集团）有限公司 | Taper thread measuring instrument |
| CN102109311A (en) * | 2010-12-02 | 2011-06-29 | 贵州航太精密制造有限公司 | Device for measuring pitch diameter |
| CN202204502U (en) * | 2011-09-19 | 2012-04-25 | 贵州航太精密制造有限公司 | Device for measuring pitch diameter of external thread |
-
2013
- 2013-09-30 CN CN201310468862.2A patent/CN103499324B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3623362A1 (en) * | 1986-07-11 | 1988-01-21 | Opel Adam Ag | Measuring and testing device for determining the arc length of semicircular bearing shells (bushes) |
| CN2771812Y (en) * | 2005-03-18 | 2006-04-12 | 许晓华 | Assisting tool set for three-needle method measuring worm distance |
| CN101476873A (en) * | 2009-01-05 | 2009-07-08 | 哈尔滨东安发动机（集团）有限公司 | Taper thread measuring instrument |
| CN102109311A (en) * | 2010-12-02 | 2011-06-29 | 贵州航太精密制造有限公司 | Device for measuring pitch diameter |
| CN202204502U (en) * | 2011-09-19 | 2012-04-25 | 贵州航太精密制造有限公司 | Device for measuring pitch diameter of external thread |
Non-Patent Citations (1)
| Title |
|---|
| 江玮 等: "基于CPLD和长度计的数字化微小位移检测的设计", 《机械与电子》, no. 1, 31 January 2010 (2010-01-31), pages 46 - 48 * |
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| CN103499324B (en) | 2016-08-31 |
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