CN110715634B - Goniometer based on differential program-controlled multi-tooth indexing table - Google Patents
Goniometer based on differential program-controlled multi-tooth indexing table Download PDFInfo
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- CN110715634B CN110715634B CN201911004734.6A CN201911004734A CN110715634B CN 110715634 B CN110715634 B CN 110715634B CN 201911004734 A CN201911004734 A CN 201911004734A CN 110715634 B CN110715634 B CN 110715634B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/22—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
- G01M11/0207—Details of measuring devices
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Abstract
The invention discloses a goniometer based on a differential program-controlled multi-tooth dividing table, which comprises a photoelectric auto-collimator, an angle measuring platform, a differential program-controlled multi-tooth dividing table, a connecting cable and a control electric box, wherein the differential program-controlled multi-tooth dividing table and the photoelectric auto-collimator are arranged on the angle measuring platform, and the differential program-controlled multi-tooth dividing table and the photoelectric auto-collimator are respectively connected with the control electric box through the connecting cable; the differential program-controlled multi-tooth indexing table consists of a table top, a first multi-tooth indexing table, a first rotating motor bracket, a first rotating transmission piece, a first rotating motor, a second multi-tooth indexing table, a second rotating motor bracket, a second rotating motor, a conductive slip ring, a first lifting rocking handle, a first lifting motor bracket, a first lifting transmission piece, a second lifting rocking handle, a second lifting motor bracket and a second lifting transmission piece. The invention has the advantages of high angle measurement precision and repeated positioning precision, small angle resolution, long service life and convenient operation.
Description
Technical Field
The invention relates to an angle measuring device, in particular to an angle measuring instrument based on a differential program-controlled multi-tooth indexing table.
Background
The angle meter is an important device applied to high-precision angle optical devices such as angle measuring block gauges, polyhedrons, optical prisms and the like.
In the processing process of optical angle parts (such as prisms, polygonal mirrors, pentaprisms and the like), the included angles among all the surfaces need to be known, if the precision requirement on the angles is high, the high precision requirement on a detection instrument is also required, the foreign high-precision angle measuring instrument (such as German MOLLER and the like) is basically realized by adopting a precise optical dial to be matched with a self-aligning tube, the more the number of the scribing lines of the optical dial is, the greater the processing difficulty is, the more the indexing precision of the scribing lines is, so that the precision of the angle measuring instrument is limited (such as MOLLER provides the highest precision single measurement error 2 ', and the average error 6').
Disclosure of Invention
The invention aims to provide an angle measuring instrument which has high angle measuring precision and repeated positioning precision, small angle resolution, long service life and convenient operation, the angle measuring instrument is based on two sets of multi-tooth indexing tables, the two sets of multi-tooth indexing tables can provide very high angle precision and repeated positioning precision, the two sets of multi-tooth indexing tables obtain very high angle resolution through difference, and the tooth surface abrasion does not influence the precision due to the structural characteristics of an end fluted disc, so that the service life of the angle measuring instrument is long, and the lifting and the transposition of the multi-tooth indexing tables are realized by utilizing a motor, so that the operation is convenient.
The purpose of the invention is realized in the following way:
The utility model provides a goniometer based on differential program control multidentate graduation platform, includes photoelectric auto-collimator, angle measurement platform, differential program control multidentate graduation platform, connecting cable and control box, characterized by: the differential program-controlled multi-tooth dividing table and the photoelectric auto-collimator are arranged on the angle measuring platform, the height of a light pipe of the photoelectric auto-collimator is larger than the table top height of the differential program-controlled multi-tooth dividing table, and the differential program-controlled multi-tooth dividing table and the photoelectric auto-collimator are respectively connected with the control electric box through connecting cables;
The differential program-controlled multi-tooth indexing table consists of a table top, a first multi-tooth indexing table, a first rotating transmission piece, a first rotating motor bracket, a first rotating motor, a second multi-tooth indexing table, a second rotating transmission piece, a second rotating motor bracket, a second rotating motor, a conductive slip ring, a first lifting rocking handle, a first lifting motor bracket, a first lifting transmission piece, a second lifting rocking handle, a second lifting motor bracket and a second lifting transmission piece, wherein the table top is arranged on the upper end surface of the first multi-tooth indexing table through screws, the first multi-tooth indexing table is arranged on the upper end surface of the second multi-tooth indexing table, the outer circle of the upper end surface of the first multi-tooth indexing table is aligned to the outer circle of the upper end surface of the second multi-tooth indexing table, so that the coaxiality of the two is not more than 0.008mm, the position of the first multi-tooth indexing table is fixed by using glue solution, then the position of the first multi-tooth indexing table is fastened through screws, and the conductive slip ring is arranged in the middle hole of the second multi-tooth indexing table; the screw passes through the vertical plate of the L-shaped first rotating position motor bracket to mount the first rotating position motor bracket on the side wall of the first multi-tooth indexing table, the first rotating position motor is mounted on the bottom of the transverse plate of the first rotating position motor bracket through the screw, the output shaft of the first rotating position motor upwards passes through the transverse plate of the first rotating position motor bracket, the first rotating position transmission piece is mounted on the output shaft of the first rotating position motor, the first rotating position motor and the first multi-tooth indexing table are transmitted through the first rotating position transmission piece, the first lifting motor is mounted on the side wall of the first multi-tooth indexing table axially opposite to the first rotating position motor through the first lifting motor bracket, the first lifting rocking handle is mounted at the tail end of the first lifting motor, the first lifting transmission piece is mounted on the output shaft of the first lifting motor, and the first multi-tooth indexing table are transmitted through the first lifting transmission piece; the screw passes through the vertical plate of the L-shaped second indexing motor bracket to mount the second indexing motor bracket on the side wall of the second multi-tooth indexing table, the second indexing motor is mounted at the bottom of the transverse plate of the second indexing motor bracket through the screw, the output shaft of the second indexing motor passes upwards through the transverse plate of the second indexing motor bracket, the second indexing transmission piece is mounted on the output shaft of the second indexing motor, the second indexing motor and the second multi-tooth indexing table are transmitted through the second indexing transmission piece, the second lifting motor is mounted on the side wall of the second multi-tooth indexing table axially opposite to the second indexing motor through the second lifting motor bracket, the second lifting rocking handle is mounted at the tail end of the second lifting motor, the second lifting transmission piece is mounted on the output shaft of the second lifting motor, and the second lifting motor and the second multi-tooth indexing table are transmitted through the second lifting transmission piece; wherein: the wiring of the first transposition motor and the wiring of the first lifting motor are connected to the second multi-tooth indexing table through the conductive slip ring, and the wiring of the first transposition motor, the wiring of the first lifting motor, the wiring of the second transposition motor and the wiring of the second lifting motor are welded to an external connector together and are connected with a connecting cable through the connector.
The first multi-tooth indexing table has 391 teeth and the second multi-tooth indexing table has 720 teeth, and the rigid straight tooth end fluted disc is used for surface hardening and rust prevention. The two are made into a whole to form a differential program-controlled multi-tooth indexing table, and the equivalent 281520-tooth program-controlled multi-tooth indexing table can provide an angle standard as small as 4.6', and the small angles of the two are corresponding to the positions of 720 and 391 multi-tooth indexing tables as shown in the table 1 below.
The invention is formed by photoelectric auto-collimator, angle measurement platform, differential program-controlled multi-tooth indexing table, connecting cable, control electric box, the differential program-controlled multi-tooth indexing table drives the upper fluted disc of the first multi-tooth indexing table to lift and descend through the first lifting motor, the first inversion motor drives the upper fluted disc of the first multi-tooth indexing table to rotate to the appointed angle position, and simultaneously drives the upper fluted disc of the second multi-tooth indexing table to lift and descend through the second lifting motor, and the second inversion motor drives the upper fluted disc of the second multi-tooth indexing table to rotate to the appointed angle position, thus having convenient and accurate rotation angle function; the photoelectric autocollimator and the differential program-controlled multi-tooth indexing table are both arranged on the angle measurement platform, the control electric box directly completes the functions of angle control and angle measurement, and the angle optical device can be directly input into the control electric box without disassembly and assembly after one-time installation, so that the measurement of the angle optical device is completed. When in use, the rotating angle of the differential program-controlled multi-tooth indexing table is controlled by controlling the electric box, the photoelectric auto-collimator obtains the angle value of the measured object by emitting light and receiving light, and the angle value is displayed by controlling the display screen of the electric box
Therefore, the invention has the following advantages:
1. The angle measurement precision and the repeated positioning precision are high: the conventional first multi-tooth indexing table and the second multi-tooth indexing table are both provided with the end fluted disc, and the corresponding average effect enables the angle precision of the first multi-tooth indexing table and the second multi-tooth indexing table to be less than or equal to 0.2 ', and the repeated positioning precision to be less than or equal to 0.05';
2. The angular resolution is small: the 391 teeth first multi-tooth indexing table and the 720 teeth second multi-tooth indexing table are equivalent to 281520 multi-tooth indexing tables after being differentiated, and can provide a minimum angle of 4.6';
3. The service life is long: the main moving parts are a first multi-tooth indexing table and a second multi-tooth indexing table, and the fluted disc used by the first multi-tooth indexing table and the second multi-tooth indexing table can not reduce the precision under the condition of straight tooth abrasion, can still be normally used and has high reliability;
4. the operation is convenient: the invention controls the angle difference and the measurement of the angle optical device by controlling the electric box, and the result can be obtained by directly inputting the angle required to rotate on the control electric box, thereby having simple operation.
The invention is suitable for the angle measurement and detection of optical devices in the experiment, instrument and machinery manufacturing industries of scientific research and measurement departments.
Drawings
FIG. 1 is a block diagram of the present invention;
FIG. 2 is a cross-sectional view of a differential programmable multiple tooth indexing table;
Wherein: 1-an electro-optical autocollimator; 2-an angle measurement platform; 3-differential program-controlled multi-tooth indexing table; 4-connecting the cable; 5-controlling an electric box; 301—a mesa; 302—a first multi-tooth indexing table; 303—a first transfer drive; 304-a first indexing motor mount; 305—a first inversion motor; 306-a second multi-tooth indexing table; 307-second indexing drive; 308-a second indexing motor mount; 309-a second indexing motor; 310-conductive slip ring; 311-a second lifting rocking handle; 312-a second lift motor; 313-a second lift motor bracket; 314—a second lifting drive; 315—a first lifting rocker; 316—a first lift motor; 317—a first lift motor bracket; 318-first lifting transmission member.
Detailed Description
The invention will be described in further detail below with reference to examples and with reference to the accompanying drawings.
The angle meter based on the differential program-controlled multi-tooth indexing table comprises a photoelectric auto-collimator 1, an angle measuring platform 2, a differential program-controlled multi-tooth indexing table 3, a connecting cable 4 and a control electric box 5, wherein the differential program-controlled multi-tooth indexing table 3 and the photoelectric auto-collimator 1 are arranged on the angle measuring platform 2, the light pipe height of the photoelectric auto-collimator 1 is larger than the table top height of the differential program-controlled multi-tooth indexing table 3, and the dynamic program-controlled multi-tooth indexing table 3 and the photoelectric auto-collimator 1 are respectively connected with the control electric box 5 through the connecting cable 4;
the differential program-controlled multi-tooth indexing table consists of a table top 301, a first multi-tooth indexing table 302, a first rotating transmission member 303, a first rotating motor bracket 304, a first rotating motor 305, a second multi-tooth indexing table 306, a second rotating transmission member 307, a second rotating motor bracket 308, a second rotating motor 309, a conductive slip ring 310, a second lifting rocking handle 311, a second lifting motor 312, a second lifting motor bracket 313, a second lifting transmission member 314, a first lifting rocking handle 315, a first lifting motor 316, a first lifting motor bracket 317 and a first lifting transmission member 318, wherein the table top 301 is arranged on the upper end surface of the first multi-tooth indexing table 302 through screws, The first multi-tooth indexing table 302 is mounted on the upper end face of the second multi-tooth indexing table 306, the outer circle of the upper end face of the first multi-tooth indexing table 302 is aligned to be coaxial with the outer circle of the upper end face of the second multi-tooth indexing table 306, so that coaxiality of the two is not more than 0.008mm, a glue solution is used for fixing the position of the first multi-tooth indexing table 302 at the moment, then the position of the first multi-tooth indexing table 302 is fastened through a screw, and a conductive slip ring 310 is mounted in a middle hole of the second multi-tooth indexing table 305; Screws pass through the vertical plates of the L-shaped first rotating position motor bracket 304 to mount the first rotating position motor bracket 304 on the side wall of the first multi-tooth indexing table 302, the first rotating position motor 305 is mounted on the bottom of the transverse plate of the first rotating position motor bracket 304 through screws, the output shaft of the first rotating position motor 305 passes upwards through the transverse plate of the first rotating position motor bracket 304, the first rotating position transmission member 303 is mounted on the output shaft of the first rotating position motor 304, the first rotating position motor 304 and the first multi-tooth indexing table 302 are transmitted through the first rotating position transmission member 303, the first lifting motor 316 is mounted on the side wall of the first multi-tooth indexing table 302 opposite to the first rotating position motor 305 through the first lifting motor bracket 317, A first lifting rocking handle 315 is arranged at the tail end of the first lifting motor 316, a first lifting transmission member 318 is arranged on the output shaft of the first lifting motor 316, and the first lifting motor 316 and the first multi-tooth indexing table 302 are transmitted through the first lifting transmission member 314; Screws pass through the vertical plates of the L-shaped second indexing motor bracket 308 to mount the second indexing motor bracket 308 on the side wall of the second multi-tooth indexing table 306, the second indexing motor 309 is mounted on the bottom of the transverse plate of the second indexing motor bracket 308 through screws, the output shaft of the second indexing motor 309 passes upwards through the transverse plate of the second indexing motor bracket 308, a second indexing transmission piece 307 is mounted on the output shaft of the second indexing motor 309, the second indexing motor 309 and the second multi-tooth indexing table 306 are transmitted through the second indexing transmission piece 307, a second lifting motor 312 is mounted on the side wall of the second multi-tooth indexing table 306 axially opposite to the second indexing motor 309 through a second lifting motor bracket 313, A second lifting rocking handle 311 is arranged at the tail end of the second lifting motor 312, a second lifting transmission piece 314 is arranged on the output shaft of the second lifting motor 312, and the second lifting motor 312 and the second multi-tooth indexing table 306 are transmitted through the second lifting transmission piece 314; Wherein: the wiring of the first indexing motor 305 and the wiring of the first lifting motor 316 are connected to the second multi-tooth indexing table 306 through the conductive slip ring 310, the wiring of the first indexing motor 305 and the wiring of the first lifting motor 316 are welded to an external connector together with the wiring of the second indexing motor 309 and the wiring of the second lifting motor 312, and are connected with the connecting cable 4 through the connector.
The first multi-tooth indexing table has 391 teeth and the second multi-tooth indexing table has 720 teeth, and the rigid straight tooth end fluted disc is used for surface hardening and rust prevention. The first index motor 305, the second index motor 309, the first lift motor 316, and the second lift motor 312 are all dc stepper motors.
When in use, the electric box 5 is controlled to control the rotation angle of the differential program-controlled multi-tooth indexing table 3, and the photoelectric auto-collimator 1 obtains the angle value of the measured object by emitting light and receiving light and displays the angle value through the display screen of the control electric box 5.
After the upper structure of the first multi-tooth indexing table 302 rises and reaches a designated height, the first rotation motor 305 drives the upper structure of the first multi-tooth indexing table 302 to rotate through the first rotation transmission member 303, and the first lifting motor 316 drives the upper structure of the first multi-tooth indexing table 302 to rise and fall through the first lifting transmission member 317; after the upper structure of the second multi-tooth indexing table 306 is lifted up and reaches the designated position, the second indexing motor 309 drives the upper structure of the second multi-tooth indexing table 305 to rotate through the second indexing transmission member 307, and the second lifting motor 312 drives the upper structure of the second multi-tooth indexing table 306 to lift up and down through the second lifting transmission member 311.
Working principle: the optical angle part (such as a prism, a polygon mirror, a pentaprism and the like) to be measured is placed on the table top 301, the angle position of the measured optical angle part is adjusted through the photoelectric autocollimator 1 until the angle position of the first measured surface is within the range of 0 DEG + -20', at this time, the display value of the control electric box 5 is M, the angle value X is input on the control electric box 5, the differential program-controlled multi-tooth indexing table 3 is driven by the first indexing motor 305, the second indexing motor 309, the first lifting motor 316 and the second lifting motor 312 to rotate to the designated angle X, the photoelectric autocollimator 1 measures the angle of the second measured surface of the optical angle part at this time, the display value of the control electric box is N, then the angle value between the first measured surface and the second measured surface is X+N-M, the steps are continued, other measured surfaces of the measured optical angle part are measured until all required angle values between the measured surfaces are obtained, and the angle measurement work is completed.
Claims (1)
1. The utility model provides a goniometer based on differential program control multidentate graduation platform, includes photoelectric auto-collimator, angle measurement platform, differential program control multidentate graduation platform, connecting cable and control box, its characterized in that: the differential program-controlled multi-tooth dividing table and the photoelectric auto-collimator are arranged on the angle measuring platform, the height of a light pipe of the photoelectric auto-collimator is larger than the table top height of the differential program-controlled multi-tooth dividing table, and the differential program-controlled multi-tooth dividing table and the photoelectric auto-collimator are respectively connected with the control electric box through connecting cables;
The differential program-controlled multi-tooth indexing table consists of a table top, a first multi-tooth indexing table, a first rotating transmission piece, a first rotating motor bracket, a first rotating motor, a second multi-tooth indexing table, a second rotating transmission piece, a second rotating motor bracket, a second rotating motor, a conductive slip ring, a first lifting rocking handle, a first lifting motor bracket, a first lifting transmission piece, a second lifting rocking handle, a second lifting motor bracket and a second lifting transmission piece, wherein the table top is arranged on the upper end surface of the first multi-tooth indexing table through screws, the first multi-tooth indexing table is arranged on the upper end surface of the second multi-tooth indexing table, the outer circle of the upper end surface of the first multi-tooth indexing table is aligned to the outer circle of the upper end surface of the second multi-tooth indexing table, so that the coaxiality of the two is not more than 0.008mm, the position of the first multi-tooth indexing table is fixed by using glue solution, then the position of the first multi-tooth indexing table is fastened through screws, and the conductive slip ring is arranged in the middle hole of the second multi-tooth indexing table; the screw passes through the vertical plate of the L-shaped first rotating position motor bracket to mount the first rotating position motor bracket on the side wall of the first multi-tooth indexing table, the first rotating position motor is mounted on the bottom of the transverse plate of the first rotating position motor bracket through the screw, the output shaft of the first rotating position motor upwards passes through the transverse plate of the first rotating position motor bracket, the first rotating position transmission piece is mounted on the output shaft of the first rotating position motor, the first rotating position motor and the first multi-tooth indexing table are transmitted through the first rotating position transmission piece, the first lifting motor is mounted on the side wall of the first multi-tooth indexing table axially opposite to the first rotating position motor through the first lifting motor bracket, the first lifting rocking handle is mounted at the tail end of the first lifting motor, the first lifting transmission piece is mounted on the output shaft of the first lifting motor, and the first multi-tooth indexing table are transmitted through the first lifting transmission piece; the screw passes through the vertical plate of the L-shaped second indexing motor bracket to mount the second indexing motor bracket on the side wall of the second multi-tooth indexing table, the second indexing motor is mounted at the bottom of the transverse plate of the second indexing motor bracket through the screw, the output shaft of the second indexing motor passes upwards through the transverse plate of the second indexing motor bracket, the second indexing transmission piece is mounted on the output shaft of the second indexing motor, the second indexing motor and the second multi-tooth indexing table are transmitted through the second indexing transmission piece, the second lifting motor is mounted on the side wall of the second multi-tooth indexing table axially opposite to the second indexing motor through the second lifting motor bracket, the second lifting rocking handle is mounted at the tail end of the second lifting motor, the second lifting transmission piece is mounted on the output shaft of the second lifting motor, and the second lifting motor and the second multi-tooth indexing table are transmitted through the second lifting transmission piece; wherein: the wiring of the first transposition motor and the wiring of the first lifting motor are connected to the second multi-tooth indexing table through the conductive slip ring, and the wiring of the first transposition motor, the wiring of the first lifting motor, the wiring of the second transposition motor and the wiring of the second lifting motor are welded to an external connector together and are connected with a connecting cable through the connector;
the number of teeth of the first multi-tooth indexing table is 391 teeth, and the number of teeth of the second multi-tooth indexing table is 720 teeth;
The first indexing motor, the second indexing motor, the first lifting motor and the second lifting motor are all direct current stepping motors.
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| CN201911004734.6A CN110715634B (en) | 2019-10-22 | 2019-10-22 | Goniometer based on differential program-controlled multi-tooth indexing table |
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| CN201911004734.6A CN110715634B (en) | 2019-10-22 | 2019-10-22 | Goniometer based on differential program-controlled multi-tooth indexing table |
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| CN112129198A (en) * | 2020-10-19 | 2020-12-25 | 通用技术集团大连机床有限责任公司 | Fluted disc precision detection device |
| CN112518310B (en) * | 2020-12-07 | 2024-11-08 | 中船九江精达科技股份有限公司 | A device and method for realizing high-precision coaxiality calibration of toothed disc |
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| CN211042166U (en) * | 2019-10-22 | 2020-07-17 | 中船九江精达科技股份有限公司 | Goniometer based on differential program-controlled multi-tooth dividing table |
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| CN101514906B (en) * | 2009-04-07 | 2011-09-28 | 中国科学院长春光学精密机械与物理研究所 | Detecting method for measurement accuracy of angle measuring apparatus |
| CN101561265B (en) * | 2009-05-22 | 2011-06-15 | 成都工具研究所 | Multi-tooth indexing table device without lifting table-board |
| CN103673930B (en) * | 2012-09-21 | 2017-01-25 | 北京航天计量测试技术研究所 | Ultra-high-precision automated multi-tooth indexing table |
| CN203875688U (en) * | 2014-05-19 | 2014-10-15 | 九江精达检测技术有限公司 | Inversion device for automatic control of multi-tooth division table |
| CN104061895B (en) * | 2014-07-02 | 2017-01-18 | 中国科学院长春光学精密机械与物理研究所 | Precision detection method of high-precision angle measurement instrument |
| CN109870121B (en) * | 2019-04-01 | 2021-01-08 | 长春理工大学 | Angular displacement sensor angle detection method based on program-controlled multi-tooth dividing table |
| CN109870122B (en) * | 2019-04-01 | 2020-12-01 | 长春理工大学 | Angle detection device of angular displacement sensor based on program-controlled multi-tooth indexing table |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN211042166U (en) * | 2019-10-22 | 2020-07-17 | 中船九江精达科技股份有限公司 | Goniometer based on differential program-controlled multi-tooth dividing table |
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