CN104501830A - Automatic coded disk component testing platform and operation method thereof - Google Patents
Automatic coded disk component testing platform and operation method thereof Download PDFInfo
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- CN104501830A CN104501830A CN201410704643.4A CN201410704643A CN104501830A CN 104501830 A CN104501830 A CN 104501830A CN 201410704643 A CN201410704643 A CN 201410704643A CN 104501830 A CN104501830 A CN 104501830A
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- code
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C25/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
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- Physics & Mathematics (AREA)
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses an automatic coded disk component testing platform and an operation method thereof. The left side of a base of the platform is provided with a stepper motor, the right side of the base of the platform is provided with a detection device for detecting a coded disc dirty spot, and the detection device consists of a fixed shaft, a transmission shaft, a coded disc component positioning hole, a CCD (Charge Coupled Device) plate group and a coded disc component positioning pressing buckle, wherein the stepper motor is provided with a belt pulley connected with the transmission shaft of the detection device by virtue of a drive belt. The coded disc is uniformly driven to rotate by virtue of the motor, a waveform and an angle value are displayed by virtue of bundled software, the accuracy rate of checking disc is high, the location of the dirty spot is rapidly positioned, an operation of synchronously detecting whether undesirable phenomena such as dirty spots and scratch exist on a CCD is realized, so that the detection efficiency and the detection accuracy are improved.
Description
Technical field
The present invention relates to the detection platform of a kind of total powerstation, electronic theodolite angle measurement code-disc assembly, especially can realize the test platform of detection automatically to code-disc assembly.
Background technology
Electronic theodolite or total powerstation all have the angle measurement module realizing its basic angle measurement function.Angle measurement module is made up of code-disc, CCD (CCD is the English word of charge-coupled image sensor: the abbreviation of Charge Coupled Device), axle system, its principle of work is: CCD is arranged on the stationary shaft of axle system, code-disc is arranged on the rotation axis of axle system, when instrument rotates, code-disc follows rotation axis synchronous axial system.CCD constantly reads the grating signal on code-disc, by software process, can obtain the angle value that instrument rotates.If code-disc grating region and CCD surface exist dirty point or have the situations such as scuffing, instrument angle measurement just there will be mistake.For avoiding bad code-disc assembling components on instrument, need to test it before the installation of code-disc assembly.The dish mode of looking into generally adopted at present for the naked eye to observe code-disc under light.This artificial subjectivity of dish mode of looking into is strong, and the small dirty point being difficult to find code-disc exists, scuffing, look into dish weak effect, and can not detect on CCD whether have the situations such as dirty point, scuffing.
Summary of the invention
The object of the invention is the shortcoming in order to overcome above-mentioned background technology, providing a kind of test platform, this platform not only can drive the uniform rotation of code-disc assembly to carry out looking into dish, and looks into dish software in conjunction with supporting, can easily observe code-disc waveform, the position of dirty point.
Technical scheme of the present invention is: a kind of code-disc assembly automatically testing platform, it comprises: base, stepper motor, driving belt, pick-up unit, communication interface, power switch, DC supply socket, described chassis left side is provided with stepper motor, right side is provided with the pick-up unit for detecting the dirty point of code-disc, the left side of described stepper motor is provided with the power switch controlling power supply, the top of power switch is provided with DC supply socket, described pick-up unit comprises: stationary shaft, transmission shaft, code-disc assembly pilot hole, CCD plate group, the location clinching of code-disc assembly, described stationary shaft and transmission shaft form axle system, driving sleeve is on stationary shaft, code-disc to be measured is fixed on transmission shaft, described CCD plate group is fixed on stationary shaft, four stationary shaft pilot holes are provided with bottom described stationary shaft, this stationary shaft pilot hole aligns with code-disc assembly pilot hole, described code-disc assembly location clinching is provided with two and is separately fixed at above and below on the right side of base, described stepper motor is provided with belt pulley and is connected on the transmission shaft in pick-up unit by driving belt.
The top of described pick-up unit and below are respectively equipped with two group communication interfaces; Above the left side of stepper motor and below be respectively equipped with a group communication interface, be provided with circuit control panel at chassis interior, this circuit control panel is connected with communication interface.
Described CCD plate group leader and wide size are respectively: 52mm × 93mm, and described code-disc outside dimension is 74mm, and internal diameter size is 50mm, stationary shaft diameter 20mm, rotation axis diameter 24mm.
A method of operating for code-disc assembly automatically testing platform, the method is as follows:
(1) before detecting, first code-disc is fixed on the rotating shaft, CCD plate group is fixed on stationary shaft, driving sleeve is on stationary shaft, four pilot holes are had bottom stationary shaft, the effect of this pilot hole is when being placed on by code-disc to be measured on pick-up unit on test platform, four code-disc assembly pilot holes on pick-up unit just in time align in four stationary shaft positioning through hole of stationary shaft, code-disc to be measured and stationary shaft are just fixed together with pick-up unit, after pick-up unit fixes, one end of driving belt is enclosed within the belt pulley of stepper motor, other end cover on the rotating shaft, 7.4V DC power source adapter is connected in the DC supply socket on test platform, turn on the power switch, now circuit control panel can rotate by preset sequence Driving Stepping Motor, and stepper motor drives rotation axis to rotate by driving belt, thus realizes code-disc uniform rotation to be measured,
(2) connecting line of CCD plate group on pick-up unit is inserted in the communication interface on test platform, have 2 route roads, by 2 road ccd signals, be called passage 0 and passage 1 signal, be sent to look into dish communicator total powerstation mainboard on, data-signal is passed to PC by after the signal rough handling received by serial communication line by mainboard; Software on PC analyzes data by reading, and is shown by the signal of each channel C CD, and demonstrate angle value in real time with the form of waveform, by the passage bridge button on software, and can the waveform situation of real time inspection two channel C CD signal;
(3) when automatically looking into dish, click " looking into dish " action button of software, beginning is carried out looking into dish by software automatically, look into the ccd signal of first sense channel 0 during dish, then the ccd signal of sense channel 1, if there is mistake, then can provide error information in "----just at sense channel 0----" below, and angle position, this information can save as document for consulting, because code-disc carries out uniform rotation slowly by test platform drive, when automatically looking into dish, software can travel through each the grating scale position on code-disc, i.e. each angle position of code-disc, and every road CCD all looks into once, code-disc assembly is totally 2 road CCD, be equivalent to check code-disc 2 times, thus realize all standing of looking into dish, zero omits, meanwhile, the dirty point that code-disc exists or scuffing place software all can carry out the prompting that reports an error, and can indicate the position of makeing mistakes with the angle value at this place, accurate positioning.
The invention has the beneficial effects as follows: the present invention at the uniform velocity drives code-disc to rotate by motor, and by software kit display waveform, angle value, look into dish accuracy rate high, dirty some position quick position, whether synchronous detection CCD exists the bad phenomenon such as dirty point, scuffing simultaneously, substantially increase detection efficiency and degree of accuracy.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the stereographic map of Fig. 1;
Fig. 3 is the stereographic map of pick-up unit of the present invention;
Fig. 4 is the vertical view of Fig. 3;
Fig. 5 is circuit connecting relation figure of the present invention;
Fig. 6 is that the present invention utilizes software to carry out looking into logic judgment module figure when dish detects;
Wherein: 1, base, 2, stepper motor, 3, driving belt, 4, pick-up unit, 41, stationary shaft, 42, transmission shaft, 43, code-disc to be measured, 44, code-disc assembly pilot hole, 45, CCD plate group, 46, stationary shaft pilot hole, 5, code-disc assembly location clinching, 6, communication interface, 7, power switch, 8, DC supply socket.
Embodiment
The present embodiment is a kind of code-disc assembly automatically testing platform, and it comprises: base (1), stepper motor (2), driving belt (3), pick-up unit (4), communication interface (6), power switch (7), DC supply socket (8).
As Fig. 1, shown in Fig. 2, described base (1) left side is provided with stepper motor (2), right side is provided with the pick-up unit (4) for detecting the dirty point of code-disc, described pick-up unit (4) comprising: stationary shaft (41), transmission shaft (42), code-disc assembly pilot hole (44), CCD plate group (45), code-disc assembly location clinching (5), described stationary shaft (41) and transmission shaft (42) form axle system, transmission shaft (42) is enclosed within stationary shaft (41), code-disc to be measured (43) is fixed on transmission shaft (42), described CCD plate group (45) is fixed on stationary shaft (41), described stationary shaft (41) bottom is provided with four stationary shaft pilot holes (46), this stationary shaft pilot hole (46) aligns with code-disc assembly pilot hole (44), described code-disc assembly location clinching (5) is provided with two and is separately fixed at above and below base (1) right side, described stepper motor (2) is provided with belt pulley and connects on the transmission shaft (42) in pick-up unit (4) by driving belt (3), the top of described pick-up unit (4) and below are respectively equipped with two group communication interfaces (6), above the left side of stepper motor (2) and below be respectively equipped with a group communication interface (6), be provided with circuit control panel in base (1) inside, as shown in Figure 5, this circuit control panel is connected with communication interface (6) circuit relationships figure, the left side of described stepper motor (2) is provided with the power switch (7) controlling power supply, and the top of power switch (7) is provided with DC supply socket (8).
A method of operating for code-disc assembly automatically testing platform, the method is as follows:
(1), before detecting, first code-disc to be measured (43) is fixed on rotation axis (42), CCD plate group (45) is fixed on stationary shaft (41), transmission shaft (42) is enclosed within stationary shaft (41), four pilot holes are arranged at stationary shaft (41) bottom, the effect of this pilot hole be code-disc to be measured is put (43) put pick-up unit (4) on test platform upper time, four code-disc assembly pilot holes (44) on pick-up unit (4) are just in time alignd in four stationary shaft pilot holes (46) of stationary shaft (41), code-disc to be measured (43) and stationary shaft (41) are just fixed together with pick-up unit (4), after pick-up unit (4) fixes, one end of driving belt (3) is enclosed within the belt pulley of stepper motor (2), on the rotation axis (42) that the other end is enclosed within, 7.4V DC power source adapter be connected in the DC supply socket (8) on test platform, turn on the power switch (7), now circuit control panel can rotate by preset sequence Driving Stepping Motor (2).Stepper motor (2) drives rotation axis (42) to rotate by driving belt (3), thus realizes code-disc to be measured (43) uniform rotation; As shown in Figure 3, Figure 4;
(2), the connecting line of upper for pick-up unit (4) CCD plate group (45) is inserted in the communication interface (6) on test platform, CCD plate group (45) has 2 route roads, by 2 road ccd signals, be called passage 0 and passage 1 signal, be sent to look into dish communicator total powerstation mainboard on, data-signal is passed to PC by after the signal rough handling received by serial communication line by mainboard; Software on PC analyzes data by reading, and is shown by the signal of each channel C CD, and demonstrate angle value in real time with the form of waveform, by the passage bridge button on software, and can the waveform situation of real time inspection two channel C CD signal;
(3) when automatically looking into dish, click " looking into dish " action button of software, beginning is carried out looking into dish by software automatically, look into the ccd signal of first sense channel 0 during dish, then the ccd signal of sense channel 1, if there is mistake, then can provide error information in "----just at sense channel 0----" below, and angle position, this information can save as document for consulting, because code-disc carries out uniform rotation slowly by test platform drive, when automatically looking into dish, software can travel through each the grating scale position on code-disc, i.e. each angle position of code-disc, and every road CCD all looks into once, code-disc assembly is totally 2 road CCD, be equivalent to check code-disc 2 times, thus realize all standing of looking into dish, zero omits, meanwhile, the dirty point that code-disc exists or scuffing place software all can carry out the prompting that reports an error, and can indicate the position of makeing mistakes with the angle value at this place, accurate positioning.
As shown in Figure 5, DC power interface access 7.4V DC power source adapter, for LPC singlechip control panel and driving stepper motor plate power (closure or openness of power switch control to power or power-off); After LPC singlechip control panel and driving stepper motor plate work on power, LPC single-chip microcomputer is according to the rotating speed of program setting, PWM ripple (PWM is the abbreviation of pulse-length modulation English word Pulse Width Modulation) is exported from 4 road I/O ports, by this Signal transmissions to driving stepper motor plate, pwm control signal amplifies by driving stepper motor plate, outputs to drive motor uniform rotation on stepper motor; Be connected to when 2 road connecting lines of CCD plate group after in the communication interface on test platform, its CCD plate group will to obtain on code-disc grating signal this moment, this signal is by communication output interface (2 tunnels, be respectively passage 0, with passage 1) output to look into and coil on the total powerstation mainboard of communicator. the grating signal obtained is treated to the angle signal of current code-disc by the control chip on mainboard, and then this angle signal is sent to the software on PC by mainboard by serial port communication line.During detection, software control receiving cable 0 and wherein 1 tunnel in passage 1 two-way ccd signal, then first check the signal of passage 0 when automatically looking into dish, then the signal of receiving cable 1.
Claims (4)
1. a code-disc assembly automatically testing platform, it is characterized in that it comprises: base, stepper motor, driving belt, pick-up unit, communication interface, power switch, DC supply socket, described chassis left side is provided with stepper motor, right side is provided with the pick-up unit for detecting the dirty point of code-disc, the left side of described stepper motor is provided with the power switch controlling power supply, the top of power switch is provided with DC supply socket, described pick-up unit comprises: stationary shaft, transmission shaft, code-disc assembly pilot hole, CCD plate group, the location clinching of code-disc assembly, described stationary shaft and transmission shaft form axle system, driving sleeve is on stationary shaft, code-disc to be measured is fixed on transmission shaft, described CCD plate group is fixed on stationary shaft, four stationary shaft pilot holes are provided with bottom described stationary shaft, this stationary shaft pilot hole aligns with code-disc assembly pilot hole, described code-disc assembly location clinching is provided with two and is separately fixed at above and below on the right side of base, described stepper motor is provided with belt pulley and is connected on the transmission shaft in pick-up unit by driving belt.
2. code-disc assembly automatically testing platform according to claim 1, is characterized in that the top of described pick-up unit and below are respectively equipped with two group communication interfaces; Above the left side of stepper motor and below be respectively equipped with a group communication interface, be provided with circuit control panel at chassis interior, this circuit control panel is connected with communication interface.
3. code-disc assembly automatically testing platform according to claim 1, it is characterized in that described CCD plate group leader and wide size are respectively: 52mm × 93mm, described code-disc outside dimension is 74mm, and internal diameter size is 50mm, stationary shaft diameter 20mm, rotation axis diameter 24mm.
4. a method of operating for code-disc assembly automatically testing platform, is characterized in that the method is as follows:
(1) before detecting, first code-disc is fixed on the rotating shaft, CCD plate group is fixed on stationary shaft, driving sleeve is on stationary shaft, four pilot holes are had bottom stationary shaft, the effect of this pilot hole is when being placed on by code-disc to be measured on pick-up unit on test platform, four code-disc assembly pilot holes on pick-up unit just in time align in four stationary shaft positioning through hole of stationary shaft, code-disc to be measured and stationary shaft are just fixed together with pick-up unit, after pick-up unit fixes, one end of driving belt is enclosed within the belt pulley of stepper motor, on the rotation axis that the other end is enclosed within, 7.4V DC power source adapter is connected in the DC supply socket on test platform, turn on the power switch, now circuit control panel can rotate by preset sequence Driving Stepping Motor, and stepper motor drives rotation axis to rotate by driving belt, thus realizes code-disc uniform rotation to be measured,
(2) connecting line of CCD plate group on pick-up unit is inserted in the communication interface on test platform, have 2 route roads, by 2 road ccd signals, be called passage 0 and passage 1 signal, be sent to look into dish communicator total powerstation mainboard on, data-signal is passed to PC by after the signal rough handling received by serial communication line by mainboard; Software on PC analyzes data by reading, and is shown by the signal of each channel C CD, and demonstrate angle value in real time with the form of waveform, by the passage bridge button on software, and can the waveform situation of real time inspection two channel C CD signal;
(3) when automatically looking into dish, click " looking into dish " action button of software, beginning is carried out looking into dish by software automatically, look into the ccd signal of first sense channel 0 during dish, then the ccd signal of sense channel 1, if there is mistake, then can provide error information in "----just at sense channel 0----" below, and angle position, this information can save as document for consulting, because code-disc carries out uniform rotation slowly by test platform drive, when automatically looking into dish, software can travel through each the grating scale position on code-disc, i.e. each angle position of code-disc, and every road CCD all looks into once, code-disc assembly is totally 2 road CCD, be equivalent to check code-disc 2 times, thus realize all standing of looking into dish, zero omits, meanwhile, the dirty point that code-disc exists or scuffing place software all can carry out the prompting that reports an error, and can indicate the position of makeing mistakes with the angle value at this place, accurate positioning.
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| CN201410704643.4A CN104501830B (en) | 2014-11-28 | 2014-11-28 | Code-disc component automatically testing platform and its operating method |
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| CN201410704643.4A CN104501830B (en) | 2014-11-28 | 2014-11-28 | Code-disc component automatically testing platform and its operating method |
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| CN104501830B CN104501830B (en) | 2017-06-30 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105973293A (en) * | 2016-07-27 | 2016-09-28 | 东莞星辰智能科技有限公司 | Encoder output waveform tester |
| CN106917865A (en) * | 2015-12-25 | 2017-07-04 | 大连楼兰科技股份有限公司 | A kind of manual-gear vehicle aids in automatic gear shift apparatus and method |
| CN113884007A (en) * | 2021-09-29 | 2022-01-04 | 中元汇吉生物技术股份有限公司 | Position detection assembly, position detection system, analyzer bearing device and analyzer |
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| CN104501830B (en) | 2017-06-30 |
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