CN108061565B - Positioning device for testing linearity of angular displacement sensor - Google Patents
Positioning device for testing linearity of angular displacement sensor Download PDFInfo
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- CN108061565B CN108061565B CN201711118187.5A CN201711118187A CN108061565B CN 108061565 B CN108061565 B CN 108061565B CN 201711118187 A CN201711118187 A CN 201711118187A CN 108061565 B CN108061565 B CN 108061565B
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- angular displacement
- displacement sensor
- horizontal
- adjusting rod
- horizontal bar
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D18/00—Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
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- General Physics & Mathematics (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The invention belongs to an angular displacement sensor testing technology, and particularly relates to a positioning device for testing the linearity of an angular displacement sensor. According to the invention, the horizontal bubble is arranged on the horizontal bar, the height-adjustable adjusting rod arranged below the horizontal bar is used for supporting the horizontal bar, the mounting stress is reduced to the maximum extent, the horizontal bubble is in a horizontal state by rotating the adjusting rod, the accurate positioning of the shell of the angular displacement sensor is realized, and the performance of the sensor can be accurately tested.
Description
The technical field is as follows: the invention belongs to an angular displacement sensor testing technology, and particularly relates to a positioning device for testing the linearity of an angular displacement sensor.
Background art: the angular displacement sensor has many kinds, generally comprises a shell and a rotating shaft, wherein the rotating shaft rotates relative to the shell to output an electric signal proportional to a rotation angle, when a linearity test is carried out, the rotating shaft is connected and fixed with a spring chuck on a main shaft of a dividing device (such as an optical dividing head) to rotate together, the shell is fixed by a clamp, and the fixing method is various, and generally adopts a mechanical fastening position, such as clamping by a clamp-type chuck, installation by an L-shaped bracket and the like; or the shell and the indexing device are connected for rotation, and the rotating shaft is fixed.
The angular displacement sensor is characterized in that a bearing is adopted for supporting between a shell and a rotating shaft of the angular displacement sensor, the bearing has an axial gap and a radial gap, the change of the gap has an influence on the performance of the angular displacement sensor, when the linear degree is tested, a mechanical fastening and positioning method is adopted, the installation stress is easily caused, the gap of the sensor is forcibly changed, the test result is influenced, particularly, some high-precision angular displacement sensors are sensitive to the installation stress, the repeatability of the test data is poor after multiple times of installation, and the real performance of the sensor cannot be reflected.
The invention content is as follows:
the purpose of the invention is as follows: the positioning device for testing the linearity of the angular displacement sensor is provided, the problem of installation stress during testing is solved, and accurate positioning is realized.
The technical scheme is as follows: the utility model provides a positioner for angle displacement type sensor linearity test, includes horizontal bar 1, the ring 2 fixed with horizontal bar 1 to and support at the regulation pole 3 of horizontal bar 1 below, be provided with on the ring 2 and be no less than a screw 4, screw up screw 4 after the casing of angle displacement sensor 5 embolias ring 2 and fix, horizontal bubble 7 has been placed in the casing groove 6 of horizontal bar 1.
The adjusting rod 3 comprises an upper adjusting rod 201 and a lower adjusting rod 202 which are in threaded fit, the upper adjusting rod 201 can move up and down by rotating, the height of the supporting horizontal bar 1 is adjusted, and then the horizontal bubble 7 is adjusted to be in a horizontal state.
The sensitivity of the horizontal bubble 7 is not lower than 1'.
The number of the screws 4 is two, and the screws are arranged on the circular ring 2 at intervals of 90 degrees.
Has the advantages that: according to the invention, the horizontal bubble is arranged on the horizontal bar, the height-adjustable adjusting rod arranged below the horizontal bar is used for supporting the horizontal bar, the mounting stress is reduced to the maximum extent, the horizontal bubble is in a horizontal state by rotating the adjusting rod, the accurate positioning of the shell of the angular displacement sensor is realized, and the performance of the sensor can be accurately tested.
Description of the drawings:
FIG. 1 is a schematic view of the structure of the present invention.
Fig. 2 is an exploded schematic view of the present invention.
The device comprises a horizontal bar 1, a circular ring 2, an adjusting rod 3, an upper adjusting rod 301, a lower adjusting rod 302, a 4-screw, an angular displacement sensor 5, a shell groove 6 and a horizontal bubble 7.
The specific implementation mode is as follows: the present invention will be described in further detail with reference to the accompanying drawings, which refer to fig. 1 to 2. A positioning device for testing the linearity of an angular displacement sensor comprises a horizontal bar 1, a ring 2 fixed with the horizontal bar 1 and an adjusting rod 3 supported below the horizontal bar 1, wherein at least one screw 4 is arranged on the ring 2, the screw 4 is used for fixing the angular displacement sensor, a shell of the angular displacement sensor 5 is sleeved in the ring 2 and then is screwed up by the screw 4 for fixing, a shaft of the angular displacement sensor 5 is connected with a spring chuck on a main shaft of a dividing device and rotates along with the main shaft of the dividing device according to a set angle, and the shell of the angular displacement sensor 5 is connected with the horizontal bar 1 and then is suspended and can rotate randomly with the horizontal bar 1; horizontal bubbles 7 are placed in a shell groove 6 of the horizontal bar 1, the horizontal bar 1 is leveled at the moment, and the adjusting rod 3 is propped below the horizontal bar 1, so that the levelness of the horizontal bar 1 can be adjusted.
The adjusting rod 3 comprises an upper adjusting rod 301 and a lower adjusting rod 302 which are in threaded fit, the upper adjusting rod 301 can move up and down by rotating, the height of the supporting horizontal bar 1 is adjusted, and then the horizontal bubble 7 is adjusted to be in a horizontal state.
The sensitivity of the horizontal bubble 7 is not lower than 1'.
The number of the screws 4 is two, and the screws are arranged on the circular ring 2 at intervals of 90 degrees.
After the shaft of the angular displacement sensor 5 is clamped on the main shaft of the indexing device, the center of the main shaft of the indexing device cannot be completely coaxial with the shaft of the angular displacement sensor 5, so that when the main shaft is rotated, the shaft of the angular displacement sensor 5 circularly jumps due to eccentricity with the main shaft, and is reflected on the horizontal strip 1 to show that the horizontal bubble 7 deviates, and at the moment, the horizontal bubble 7 can be adjusted through adjusting the height of the adjusting rod 3 to be always horizontal, so that the influence of eccentricity is eliminated, and the rotating angle of the main shaft is accurately transmitted to the rotating angle of the shaft of the angular displacement sensor 5 relative to the shell.
According to the invention, the horizontal bubble is arranged on the horizontal bar, the height-adjustable adjusting rod arranged below the horizontal bar is used for reducing the mounting stress to the maximum extent, the horizontal bubble is in a horizontal state by rotating the adjusting rod, and the accurate positioning of the angular displacement sensor shell is realized, so that the performance of the sensor can be accurately tested.
Claims (3)
1. A positioning device for linearity test of an angular displacement sensor is characterized by comprising a horizontal bar [1], a ring [2] fixed with the horizontal bar [1], and an adjusting rod [3] supported below the horizontal bar [1], wherein the ring [2] is provided with two screws [4], the two screws [4] are arranged on the ring [2] at intervals of 90 degrees, the ring [2] is vertical to the horizontal direction, a shell of the angular displacement sensor [5] is sleeved into the ring [2] and then is screwed with the screws [4] for fixing, a horizontal bubble [7] is arranged in a shell groove [6] of the horizontal bar [1], after a shaft of the angular displacement sensor [5] is clamped on a main shaft of a dividing device, the center of the main shaft of the dividing device can not be completely ensured to be coaxial with the shaft of the angular displacement sensor [5], so that when the main shaft rotates, the shaft of the angular displacement sensor [5] has circular runout due to eccentricity with the main shaft, the phenomenon that the horizontal bubble [7] deviates on the horizontal bar [1] is reflected, and the horizontal bubble [7] can be adjusted to be always kept horizontal by adjusting the height of the adjusting rod [3], so that the influence of eccentricity is eliminated, and the rotating angle of the main shaft is accurately transmitted to the rotating angle of the shaft of the angular displacement sensor [5] relative to the shell.
2. The positioning device for the linearity test of the angular displacement sensor according to claim 1, wherein the adjusting rod [3] comprises an upper adjusting rod [301] and a lower adjusting rod [302], the upper adjusting rod [301] and the lower adjusting rod are in threaded fit, the upper adjusting rod [301] can be rotated to move up and down, the height of the supporting horizontal bar [1] is adjusted, and the horizontal bubble [7] is further adjusted to be in a horizontal state.
3. The positioning device for linearity test of angular displacement sensor according to claim 2, wherein the sensitivity of the level bubble [7] is not lower than 1'.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711118187.5A CN108061565B (en) | 2017-11-08 | 2017-11-08 | Positioning device for testing linearity of angular displacement sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711118187.5A CN108061565B (en) | 2017-11-08 | 2017-11-08 | Positioning device for testing linearity of angular displacement sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108061565A CN108061565A (en) | 2018-05-22 |
| CN108061565B true CN108061565B (en) | 2021-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711118187.5A Active CN108061565B (en) | 2017-11-08 | 2017-11-08 | Positioning device for testing linearity of angular displacement sensor |
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| CN (1) | CN108061565B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203615922U (en) * | 2013-12-10 | 2014-05-28 | 中国航空工业第六一八研究所 | Demountable angular displacement sensor positioning tool |
| CN203837651U (en) * | 2014-04-29 | 2014-09-17 | 哈尔滨工程大学 | Angle displacement sensor testing device |
| CN203908559U (en) * | 2014-01-12 | 2014-10-29 | 郭平 | Equipment for correcting round bubble of measuring centering rod |
| CN204301715U (en) * | 2014-11-19 | 2015-04-29 | 中国航空工业第六一八研究所 | A kind of dismountable angular displacement sensor orientation tool |
| CN205915258U (en) * | 2016-08-26 | 2017-02-01 | 肯发精密零部件制造（无锡）有限公司 | Frock clamp |
-
2017
- 2017-11-08 CN CN201711118187.5A patent/CN108061565B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203615922U (en) * | 2013-12-10 | 2014-05-28 | 中国航空工业第六一八研究所 | Demountable angular displacement sensor positioning tool |
| CN203908559U (en) * | 2014-01-12 | 2014-10-29 | 郭平 | Equipment for correcting round bubble of measuring centering rod |
| CN203837651U (en) * | 2014-04-29 | 2014-09-17 | 哈尔滨工程大学 | Angle displacement sensor testing device |
| CN204301715U (en) * | 2014-11-19 | 2015-04-29 | 中国航空工业第六一八研究所 | A kind of dismountable angular displacement sensor orientation tool |
| CN205915258U (en) * | 2016-08-26 | 2017-02-01 | 肯发精密零部件制造（无锡）有限公司 | Frock clamp |
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| Publication number | Publication date |
|---|---|
| CN108061565A (en) | 2018-05-22 |
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