CN205384042U - Encoder reliability test device - Google Patents
Encoder reliability test device Download PDFInfo
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- CN205384042U CN205384042U CN201620123745.1U CN201620123745U CN205384042U CN 205384042 U CN205384042 U CN 205384042U CN 201620123745 U CN201620123745 U CN 201620123745U CN 205384042 U CN205384042 U CN 205384042U
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Abstract
The utility model relates to an encoder reliability test device has overcome encoder reliability test device and can not simulate the problem of operating condition, and test device includes encoder installation device, simulated condition device and detection and control system, encoder installation device includes supporting seat, transmission step shaft and encoder, and the transmission step shaft passes through the bearing to be installed in the supporting seat through -hole, and it is rotatory partly rotatory that the transmission step shaft can drive the encoder, and the encoder is fixed partly to be fixed on the supporting seat, the simulated condition device is including temperature humid test case, shaking table, band pulley, servo motor, two -layer about the inside of temperature humid test case box is equipped with, the upper strata be inclosed space, and upper space is used for simulating the reliability test of actual ambient temperature, humidity operating mode, lower floor's space installation shaking table, and warm humid test case is equipped with warm humid test box controller, and the shaking table is equipped with the shaking table controller.
Description
Technical field
This utility model relates to a kind of assay device being applied to mechanical field, or rather, this utility model relates to a kind of encoder applying three direction vibrations of simulated condition, temperature, the reliability test of humidity even load and test method, the system simultaneously can also the signal of encoder being monitored.
Background technology
Encoder is the device of the digital measurement angle collecting light, mechanical, electrical one, and the physical quantitys such as spin angular position, angle displacement and angular velocity change into the displacement transducer of the signal of telecommunication.It has the advantages such as volume is little, precision is high, digital interface, is widely used in the equipment that Digit Control Machine Tool, rotary table, robot, radar etc. need detection angles.Along with the development of science and technology, especially the demand of the High Definition Systems such as high-grade, digitally controlled machine tools, Aeronautics and Astronautics and laser weapon, has higher requirement to the angle measurement accuracy of encoder, resolving power and reliability.But current encoder device is by the impact of the interference using the external worlds such as ambient temperature, humidity, vibration, and the defect that mounting condition exists, cause that encoder fault takes place frequently.Therefore research and development encoder reliability test and parameter detecting system have important practical significance.The detection of reliability test and parameter can for encoder fault analysis, reliability improved design, manufacturing process Reliability Assurance etc. important basic data is provided.
For the research of encoder reliability test, China starts late, and only has the simple assay device of some functions at present, for instance, carry out dry run test for encoder, it does not have it is simulated actual condition test.At present domestic coder parameters context of detection is had some research, but be substantially all confined under normal temperature environment to its detection, also without simulation actual condition environment under detect.Therefore, for the actual condition of abundant analog encoder, the utility model proposes a kind of reliability test that encoder can be applied analog vibration, temperature, humidity, voltage even load, encoder can also be carried out the detection of performance parameter simultaneously.
Summary of the invention
Technical problem to be solved in the utility model is to overcome current encoder device reliability test and problem that detection system can not simulate actual condition, it is provided that a kind of encoder reliability test with simulation actual condition and method.
For solving above-mentioned technical problem, this utility model adopts the following technical scheme that realization:
A kind of encoder reliability test, including coder installing device, simulated condition device and detection and control system；
Described coder installing device includes supporting seat 12, transmission multidiameter 13 and encoder, transmission multidiameter 13 is arranged in the through hole of supporting seat 12 by bearing, transmission multidiameter 13 can drive encoder to rotate part rotation, and encoder fixed part is fixed on supporting seat 12；
Described simulated condition device includes humiture test box 1, vibration table 2, belt wheel 10, servomotor 21；
The inside of described humiture test box 1 casing is provided with upper and lower two-layer, upper strata is airtight space, upper sheaf space is for being simulated the reliability test of actual environment temperature, psychrometric condition, lower layer space installs vibration table 2, described humiture test box 1 is provided with humiture test box controller, and described vibration table 2 is provided with vibration table controller；
Supporting seat 12 in described coder installing device is fixed on the table top of the vibration table 2 in simulated condition device；Described transmission multidiameter 13 is connected by keying surely with described belt wheel 10；
Described detection and control system include industrial computer, detector 7, data collecting card, Programmable Logic Controller, servo-driver；
Described Programmable Logic Controller carries out serial communication with humiture test box controller and vibration table controller respectively by RS232C, the signal of described encoder feeds back to industrial computer by detector 7 or data collecting card, and the code device signal of servomotor 21 feeds back to industrial computer by servo-driver and Programmable Logic Controller.
Encoder described in technical scheme is No. 1 encoder 161；
Described coder installing device also includes No. 1 support 141, shaft coupling 151；
The described encoder that No. 1 encoder 161 is disengaging coupling built-in bearing, the connection axle of No. 1 encoder 161 is connected by shaft coupling 151 and transmission multidiameter 13 right-hand member are fixing；
Fix with supporting seat 12 on the left of described No. 1 support 141 and be connected, fix with the outer ring of No. 1 encoder 161 on the right side of No. 1 support 141 and be connected；
Described supporting seat 12 is provided with three through holes, and pair of bearings and spacer are arranged on the left end of transmission multidiameter 13 shaft shoulder, and spacer is arranged on the centre of pair of bearings, is assembled in three through holes of supporting seat 12 by the transmission multidiameter 13 being provided with bearing and spacer；
Described transmission multidiameter 13 is provided with 3, and No. 1 support 141 is provided with 3, and shaft coupling 151 is provided with 3, and No. 1 encoder 161 is provided with 3.
Encoder described in technical scheme is No. 2 encoders 162；
Described coder installing device also includes No. 2 supports 142, sleeve 152 and fixing nut 17；
No. 2 described encoders are the encoder with built-in bearing and stator coupler, are made up of inner ring and outer ring；
Fix with supporting seat 12 on the left of No. 2 described supports 142 and be connected, fix with the outer ring of No. 2 encoders 162 on the right side of No. 2 described supports 142 and be connected；
Described sleeve 152 left end is fixing with transmission multidiameter 13 shaft shoulder right side to be connected, and sleeve 152 right-hand member, through No. 2 encoder endoporus, is fixed with fixing nut 17；
Described supporting seat 12 is provided with three through holes, and pair of bearings and spacer are arranged on the left end of transmission multidiameter 13 shaft shoulder, and spacer is arranged on the centre of pair of bearings, is assembled in three through holes of supporting seat 12 by the transmission multidiameter 13 being provided with bearing and spacer；
Transmission multidiameter 13 is provided with 3, and No. 2 supports 142 are provided with 3, and sleeve 152 is provided with 3, and No. 2 encoders 162 are provided with 3, and fixing nut 17 is provided with 3.
Encoder described in technical scheme is No. 3 encoders 163；
Described coder installing device also includes No. 2 supports 142, backing plate 153 and protective cover 18；
No. 3 described encoders are the encoder without built-in bearing, are made up of magnetic grid drum and read head；
Fix with supporting seat 12 on the left of No. 2 described supports 142 and be connected, fix with protective cover on the right side of No. 2 described supports 142.
Described backing plate 153 one end is fixing with the magnetic grid drum in No. 3 encoders to be connected, and the other end is fixing with transmission multidiameter 13 shaft shoulder right side to be connected, and described protective cover 18 is fixed on No. 2 supports 142；
Described supporting seat 12 is provided with three through holes, and pair of bearings and spacer are arranged on the left end of transmission multidiameter 13 shaft shoulder, and spacer is arranged on the centre of pair of bearings, is assembled in three through holes of supporting seat 12 by the transmission multidiameter 13 being provided with bearing and spacer；
Transmission multidiameter 13 is provided with 3, and No. 2 supports 142 are provided with 3, and backing plate 153 is provided with 3, and No. 3 encoders 163 are provided with 3, and protective cover 18 is provided with 3；
Simulated condition device described in technical scheme also includes servomotor bearing 20, driving pulley 19, Timing Belt 9 and tensioner
Wheel 11；Described belt wheel 10 is provided with 3；
Described servomotor bearing 20 is fixed to the side of supporting seat 12, servomotor 21 is fixed on servomotor bearing 20, the output shaft of servomotor 21 is fixing with driving pulley 19 to be connected, driving pulley 19, belt wheel 10 engages with the inner ring of Timing Belt 9 respectively, expansion tightening wheel 11 engages with Timing Belt 9 outer ring, power is passed to belt wheel 10 by Timing Belt 9 by driving pulley 19, the identical expansion tightening wheel 11 of two structures is for tensioner Timing Belt 9 in transmission process, belt wheel 10 is fixing with transmission multidiameter 13 to be connected, and impart power to tested encoder, drive the rotation of tested encoder.
The up direction of the Programmable Logic Controller described in technical scheme and upper industrial computer communication, down direction connects with humiture test box controller, vibration table controller, servo-driver and power supply 8 respectively, humiture test box controller is connected with humiture test box, vibration table controller is connected with vibration table, servo-driver is connected with power interface and the encoder interfaces of servomotor, and power supply 8 provides power supply for tested encoder；
Upper industrial computer controls interface and is worked out by VB, after setting the amplitude frequency parameter of the temperature of reliability test, humidity, vibration, carries out serial communication with the next Programmable Logic Controller by RS232C on control interface；
Programmable Logic Controller output signal instruction gives humiture test box controller and vibration table controller respectively, it is adjusted temperature, humidity and vibration according to the parameter set, control interface sets the rotating speed of servomotor and after magnitude of voltage parameter that power supply 8 is supplied to tested encoder simultaneously, carry out serial communication with the next Programmable Logic Controller by RS232C, control servo-driver and power supply respectively；
The test method of a kind of encoder reliability test, comprises the following steps:
(1) model and the number of units of tested encoder are determined, it is determined that the requirement of tested coder models loading condition and needs detection
Performance parameter；
(2) model according to tested encoder, is installed to tested encoder on coder installing device；
(3) requirement of simulation loading operating mode is needed to be divided into according to tested encoder: the test of temperature and humidity simulation loading, tri-direction vibration load tests of XYZ, the change of tested encoder supply voltage are on the test of certainty of measurement impact and the detection to tested encoder output；The signal of tested encoder is uploaded to upper industrial computer by detector 7, or is uploaded to upper industrial computer by capture card, and the signal of servomotor 21 feeds back to upper industrial computer by servo-driver and PLC technology；
(4) requirement according to tested coder models loading condition, it is determined that the test parameters of the total testing time of reliability test, experiment process and often step test needs setting and test period.
Temperature and humidity simulation loading described in technical scheme is tested, and comprises the steps:
1) operating mode of simulation loading is needed according to tested encoder, determine the test period of the scope of temperature and humidity simulation loading test temperature, the speed of variations in temperature and correspondence, determine the test period of the temperature and humidity simulation loading test scope of humidity, the speed of humidity change and correspondence simultaneously；
2) on the man machine operation interface of upper industrial computer, set step 1) described in temperature and humidity simulation loading test parameter；
3) start humiture test box, start servomotor 21 and drive tested encoder to operate, tested code device signal and servomotor 21 signal are monitored simultaneously；
4) food preservation test data, test data includes the signal of temperature value, humidity value, the signal of servomotor 21 and tested encoder；Process of the test to be shut down when the signal monitored has sudden change or other abnormal conditions in time when finding, the signal according to monitoring, tested encoder or assay device be checked, analyzes the reason or fault that may be present that produce abnormal signal sudden change；Every time to often organizing test data after test, carry out taxonomic revision and storage including test period, signal data, fault data.
XYZ tri-described in technical scheme direction vibration load test, comprises the steps:
1) operating mode of simulation loading is needed according to tested encoder, it is determined that the vibration average in each direction, tri-directions of X, Y, Z, amplitude, frequency and test period in vibration load test；
2) on the man machine operation interface of upper industrial computer, set step 1) described in the parameter of vibration simulation load test；
3) Vibration on Start-up platform, starts servomotor 21 and drives tested encoder to operate, tested code device signal and servomotor 21 signal are monitored simultaneously；
4) food preservation test data, test data includes the average of each direction vibration of tri-directions of X, Y, Z in process of the test, amplitude, frequency, the signal of servomotor 21 and the output signal of tested encoder；Process of the test to be shut down when the signal monitored has sudden change or other abnormal conditions in time when finding, the signal according to monitoring, tested encoder or assay device be checked, analyzes the position or fault that may be present that produce abnormal signal sudden change；Every time to often organizing test data after test, carry out taxonomic revision and storage including test period, signal data, fault data.
The change of tested encoder supply voltage described in the technical scheme test on certainty of measurement impact, comprises the steps:
1) according to the tested encoder supply voltage change requirement on certainty of measurement impact test, it is determined that the test period of the excursion of supply voltage in process of the test, the speed of change in voltage and correspondence；
2) on the man machine operation interface of upper industrial computer, set step 1) described in tested encoder supply voltage change on precision impact test parameter；
3) start power supply 8, start servomotor 21 and drive tested encoder to operate, tested code device signal and servomotor 21 signal are monitored simultaneously；
4) food preservation test data, test data includes the output signal of the voltage value in process of the test, the signal of servomotor 21 and tested encoder；Process of the test to be shut down when the signal monitored has sudden change or other abnormal conditions in time when finding, the signal according to monitoring, tested encoder or assay device be checked, analyzes the position or fault that may be present that produce abnormal signal sudden change；Every time to often organizing test data after test, including test period, signal data, fault data etc., carry out taxonomic revision and storage.
Compared with prior art the beneficial effects of the utility model are:
1. encoder reliability test described in the utility model adopts humiture test box and vibration table that encoder is simulated the reliability test that the temperature of environment, humidity and vibration load, change the voltage value of tested encoder to test the supply voltage impact on tested encoder accuracy simultaneously, adopt detector or data collecting card to detect the signal of tested encoder.Encoder is carried out the simulation loading of temperature, humidity and vibration even load simultaneously, can the actual condition of analog encoder, under these conditions, tested encoder is simulated environment and the reliability test of vibration loading, can the ratio weak link and the incipient fault that more comprehensively expose and excite tested encoder, provide full and accurate basic data for the reliability growth of encoder, reliability assessment and accident analysis etc..
2. the analog vibration of encoder reliability test described in the utility model loads and can tested encoder be carried out at different frequencies, the vibration in three directions of X, Y, Z axis of adjustable amplitude loads reliability test, and the parameter such as the frequency of vibration, amplitude, direction and test period can be able to be adjusted according to different actual conditions.
3. tested encoder can be simulated the reliability test of ambient temperature and humidity by encoder reliability test described in the utility model, and the parameter such as the temperature of test and rate of temperature change, humidity and humidity rate of change, test period can be able to be adjusted according to different actual conditions.
4. encoder reliability test described in the utility model can test the supply voltage impact on tested encoder measurement accuracy, the magnitude of voltage of power supply is adjusted according to needing in reliability test process, by the signal of the tested encoder that detector or capture card detect, and feed back to upper industrial computer, for analyzing the basic data that the supply voltage impact on encoder measurement accuracy provides full and accurate.
5. encoder reliability test described in the utility model is capable of the encoder of different model being installed and carrying out reliability test, model according to tested encoder, selecting rational mounting means to install from the first mounting means, the second mounting means or chapter 3 mounting means, this has fully demonstrated the universal and practicality of encoder reliability test described in the utility model.
6. encoder reliability test method described in the utility model is the encoder reliability test method of complete set, first tested encoder is arranged on encoder reliability test, then the actual condition of simulation is needed according to tested encoder, temperature and humidity simulation loading test can be carried out, tri-direction vibration load tests of XYZ, tested encoder supply voltage changes the test on certainty of measurement impact and in above process of the test, the signal of tested encoder is detected, in process of the test, the temperature that tested encoder is applied, humidity, vibration, the parameter such as voltage value and test period can be adjusted according to the actual condition of simulation.
Accompanying drawing explanation
Fig. 1 is the axonometric projection graph of encoder reliability test described in the utility model；
Fig. 2 is the breakdown axonometric projection graph of the first mounting means axle survey of coder installing device in encoder reliability test described in the utility model；
Fig. 3 is the breakdown axonometric projection graph of the second mounting means axle survey of coder installing device in encoder reliability test described in the utility model；
Fig. 4 is the breakdown axonometric projection graph of the third mounting means axle survey of coder installing device in encoder reliability test described in the utility model；
Fig. 5 is the structural principle block diagram of detection and control system in encoder reliability test described in the utility model；
Fig. 6 is the enforcement flow chart of steps of encoder reliability test method described in the utility model.
In figure: 1. humiture test box, 2. vibration table, 3. the first mounting means, 4. the second mounting means, 5. the third mounting means, 6. switch board, 7. detector, 8. power supply, 9. Timing Belt, 10. belt wheel, 11. expansion tightening wheels, 12. supporting seats, 13. transmission multidiameter, No. 141.1 supports, No. 142.2 supports, 151. shaft coupling, 152. sleeves, 153. backing plates, 161.1 number encoder, 162.2 number encoder, No. 163.3 encoders, 17. fixing nuts, 18. protective cover, 19. driving pulley, 20. servomotor bearings, 21. servomotors.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is explained in detail:
Encoder reliability test described in the utility model and method are mainly made up of two large divisions, i.e. encoder reliability test part and encoder reliability test method part.
One, encoder reliability test part
Consulting Fig. 1, described encoder reliability test part is made up of coder installing device, simulated condition device and detection and control system.
1. coder installing device
Consulting Fig. 2, Fig. 3 and Fig. 4, described coder installing device is divided into three kinds according to the fixed installation mode of tested encoder, is the first mounting means 3, the second mounting means 4 and the third mounting means 5 respectively.
Described the first mounting means 3, the second mounting means 4 and the third mounting means 5 can realize multiple stage encoder is carried out simultaneously reliability test, and for the ease of narration, every kind of mounting means this utility model patent all adopts 3 encoders to describe.
The first described mounting means 3 includes supporting seat 12, transmission multidiameter 13 (3), No. 1 support 141 (3), shaft coupling 151 (3) and No. 1 encoder 161 (3)；
The described encoder that No. 1 encoder 161 is disengaging coupling built-in bearing, the connection axle of No. 1 encoder 161 is connected by shaft coupling 151 and transmission multidiameter 13 right-hand member are fixing；Described transmission multidiameter 13 is ladder profile shaft quasi-structure component, has a shaft shoulder, and the shaft shoulder is near the right-hand member of axle, and the right-hand member of transmission multidiameter 13 is connected with shaft coupling 15, and the left end of transmission multidiameter 13 is connected by keying surely with belt wheel；Described No. 1 support 141 is U-shaped, welded by the two of the left and right sides risers and base plate or the fixing connection of mechanical system, through hole is had in the middle of the riser of the left and right sides, screwed hole it is evenly equipped with around through hole, the screwed hole of bolt No. 1 support 141 left side vertical plate of traverse is fixing with bearing 12 right flank to be connected, on the right side of No. 1 support 141, the screwed hole of riser is for fixing the outer ring of No. 1 encoder 161, described No. 1 support 141 be a series of right sides riser screwed hole from through-bore axis apart from No. 1 different supports, the right side riser screwed hole distance from through-bore axis selects No. 1 corresponding support according to the model of No. 1 encoder；Described supporting seat 12 is T-shaped in what stand upside down, welded by riser and base plate or the fixing connection of mechanical system, the base plate left and right sides is evenly equipped with U-shaped opening, it is bolted on the vibration table of vibration table 2, riser right flank is uniform has three through holes, pair of bearings and spacer are arranged on the left end of transmission multidiameter 13 shaft shoulder, spacer is arranged on the centre of pair of bearings, then it is assembled to together again in three through holes of bearing 12 riser right flank, the surrounding of supporting seat 12 three through holes of riser right flank is evenly equipped with screwed hole respectively, is used for fixing No. 1 support 141.
Described the second mounting means 4 includes supporting seat 12, transmission multidiameter 13 (3), No. 2 supports 142 (3), sleeve 152 (3), No. 2 encoders 162 (3) and fixing nut 17 (3).
No. 2 described encoders are the encoder with built-in bearing and stator coupler, are made up of inner ring and outer ring；Described No. 2 supports 142 are circular ring type structural member, it is evenly equipped with two circle screwed holes around No. 2 support 142 endoporus, outer ring screwed hole is connected for fixing with bearing 12 right flank, inner ring screwed hole is connected for fixing with the outer ring of No. 2 encoders, described No. 2 supports 142 are a series of inner ring screwed hole from through-bore axis apart from No. 2 different supports, and the inner ring screwed hole distance from through-bore axis selects No. 2 corresponding supports according to the model of No. 2 encoders；Described sleeve 152 is in stepped ramp type, there is central blind hole left side (large end face), screwed hole it is evenly equipped with around central blind hole, it is connected for fixing with transmission multidiameter 13 shaft shoulder right side, sleeve 152 right-hand member has external screw thread, and sleeve 152 right-hand member, through No. 2 encoder endoporus, is fixed with fixing nut 17, the sleeve that the described diameter that sleeve 152 is a series of right-hand member is different, the diameter of sleeve right-hand member selects corresponding sleeve according to the diameter of bore of No. 2 encoders；Described supporting seat 12 is identical with the structure of the supporting seat in the first mounting means and transmission multidiameter and mounting means with transmission multidiameter 13；The right-hand axis of transmission multidiameter 13 shaft shoulder is inserted in the central blind hole of sleeve 152 left side, and interfixed by bolt, sleeve 152 right-hand member inserts in the endoporus of No. 2 encoders 162, fixing nut 17 is arranged on the external screw thread of sleeve 152 right-hand member, and the outer ring withstanding 162, No. 2 encoders 162 of No. 2 encoders is bolted on No. 2 supports 142.
The third described mounting means 5 includes supporting seat 12, transmission multidiameter 13 (3), No. 2 supports 142 (3), backing plate 153 (3), No. 3 encoders 163 (3) and protective cover 18 (3)；
No. 3 described encoders are the encoder without built-in bearing, are made up of magnetic grid drum and read head；Described No. 2 supports 142, supporting seat 12 are identical with structure and the mounting means of No. 2 supports in the second mounting means, supporting seat and transmission multidiameter with transmission multidiameter 13；Described backing plate 153 is in circular ring type structural member, two circle screwed holes it are evenly equipped with around backing plate 153 endoporus, outer ring screwed hole is connected for fixing with the magnetic grid drum in No. 3 encoders, inner ring screwed hole is connected for fixing with transmission multidiameter 13 shaft shoulder right side, described backing plate 153 is a series of outer rings screwed hole from through-bore axis apart from different backing plates, and the screwed hole distance from through-bore axis in outer ring selects corresponding backing plate according to the model of No. 3 encoders；Described protective cover is bolted on the inner ring screwed hole of No. 2 supports 142.
2. simulated condition device
Consulting Fig. 1 to Fig. 4, described simulated condition device includes humiture test box 1, vibration table 2, power supply 8, servomotor 21 (3), servomotor bearing 20 (3), driving pulley 19, Timing Belt 9 (3), belt wheel 10 (9) and expansion tightening wheel 11 (6) etc..
(this utility model is for THV-600 type humiture test box for described humiture test box 1, its adjustable temperature range is-40 DEG C～150 DEG C, humidity adjustable extent is 20～98%RH) can to the reliability test of the temperature and humidity of tested encoder simulation environment, this humiture test box is with humiture test box controller, the inside of humiture test box 1 casing is provided with upper and lower two-layer, upper strata is airtight space, upper sheaf space is for being simulated the reliability test of actual environment temperature, psychrometric condition, and lower layer space is used for installing vibration table 2；
(this utility model is for MAV-1000-4H type vibration table for described vibration table 2, its frequency of vibration range of accommodation is 1～2000HZ, peak acceleration is 1m/s) mainly it is made up of adnexaes such as test piece worktable and three vibration machines, vibration table 2 can realize tested encoder is carried out at different frequencies, the vibration of adjustable amplitude loads reliability test, direction of vibration can be X, Y, three directions of Z axis, this vibration table is with vibration table controller, vibration table 2 is arranged on the lower layer space in humiture test box 1, lower layer space in the test piece worktable traverse humiture test box 1 of vibration table 2, it is in the upper sheaf space in humiture test box 1, T-slot is had above test piece worktable, for installing the supporting seat 12 in regular coding device erecting device.
Described power supply 8 is for providing power supply to tested encoders such as No. 1 encoder, No. 2 encoders and No. 3 encoders, in order to test the supply voltage impact on tested encoder measurement accuracy, power supply 8 according to the needs in reliability test process, can change its voltage value to tested encoder；
Described servomotor bearing 20 is bolted the side of supporting seat 12, servomotor 21 is arranged on servomotor bearing 20 by bolt, the output shaft of servomotor 21 is connected by key is fixing with driving pulley 19, driving pulley 19, belt wheel 10 engages with the inner ring of Timing Belt 9 respectively, expansion tightening wheel 11 engages with Timing Belt 9 outer ring, power is passed to each belt wheel 10 by Timing Belt 9 by driving pulley 19, the identical expansion tightening wheel 11 of 2 structures is for tensioner Timing Belt 9 in transmission process, belt wheel 10 is connected by key is fixing with transmission multidiameter 13, and give tested encoder by powered rotation, drive the rotation of tested encoder.
3. detection and control system
Described detection and control system include: industrial computer, detector 7, data collecting card, Programmable Logic Controller, humiture test box controller, vibration table controller, servo-driver, power supply 8 and switch board 6 etc..
The up direction of described Programmable Logic Controller and upper industrial computer communication, down direction connects with humiture test box controller, vibration table controller, servo-driver and power supply 8 respectively, humiture test box controller is connected with humiture test box, and humiture test box and vibration table controller are adjusted temperature, humidity and vibration according to the parameter set；Vibration table controller is connected with vibration table, and servo-driver is connected with power interface and the encoder interfaces of servomotor, and power supply 8 provides power supply for tested encoder.
Upper industrial computer controls interface and is worked out by VB, after the parameter such as amplitude frequency controlling to set on interface the temperature of reliability test, humidity, vibration, serial communication is carried out by RS232C with the next Programmable Logic Controller, Programmable Logic Controller output signal instruction gives humiture test box controller and vibration table controller respectively, is adjusted temperature, humidity and vibration according to the parameter set；Control interface can also set the rotating speed of servomotor simultaneously and after the parameter such as magnitude of voltage that power supply 8 is supplied to tested encoder, carry out serial communication with the next Programmable Logic Controller by RS232C, respectively control servo-driver and power supply；In process of the test, the signal of tested encoder feeds back to upper industrial computer by detector 7 or capture card, and the code device signal of servomotor 21 feeds back to upper industrial computer also by servo-driver and Programmable Logic Controller simultaneously.
Two, encoder reliability test method part
This utility model patent proposes a set of reliability test method for tested encoder, reliability test method is to carry out on the basis of foregoing encoder reliability test, encoder reliability test can install the tested encoder of different model, the tested encoder of multiple stage can be carried out reliability test simultaneously simultaneously, the actual condition of simulation is needed according to tested encoder, temperature and humidity simulation loading test can be carried out, tri-direction vibration load tests of XYZ, tested encoder supply voltage changes the test on certainty of measurement impact and in above process of the test, the signal of tested encoder is detected.
Participating in Fig. 6, the idiographic flow of encoder reliability test method is as follows:
1. determine model and the number of units of tested encoder, it is determined that the performance parameter of the requirement of tested coder models loading condition and needs detection；
2. the model according to tested encoder, consults Fig. 2, Fig. 3 and Fig. 4, is installed on coder installing device by tested encoder；
3. need the requirement of simulation loading operating mode to be divided into according to tested encoder: the test of temperature and humidity simulation loading, tri-direction vibration load tests of XYZ, the change of tested encoder supply voltage are on the test of certainty of measurement impact and the detection to tested code device signal；
4. the requirement according to tested coder models loading condition, it is determined that the test parameters of the total testing time of reliability test, experiment process and often step test needs setting and test period；
Introduce the step of every kind of test separately below:
4.1 temperature and humidity simulation loading tests
1) operating mode of simulation loading is needed according to tested encoder, determine the test period of the scope of temperature and humidity simulation loading test temperature, the speed of variations in temperature and correspondence, be also required to determine the test period of the temperature and humidity simulation loading test scope of humidity, the speed of humidity change and correspondence simultaneously；
2) on the man machine operation interface of upper industrial computer, set step 1) described in temperature and humidity simulation loading test parameter；
3) after testing equipment no problem to be checked, start humiture test box, start servomotor 21 and drive tested encoder to operate, the signal of tested encoder and servomotor 21 signal are monitored simultaneously；
4) test data monitored is shown in people's circle operation interface in real time; and food preservation test data; the test data gathered includes the signal of the temperature value in process of the test, humidity value, the signal of servomotor 21 and tested encoder; process of the test to be shut down when the signal monitored has sudden change or other abnormal conditions in time when finding; according to monitor signal; tested encoder or assay device are checked, analyzes the reason or fault that may be present that produce abnormal signal sudden change；Every time to often organizing test data after test, including test period, signal data, fault data etc., carry out taxonomic revision and storage.
Tri-direction vibration load tests of 4.2XYZ
5) operating mode of simulation loading is needed according to tested encoder, it is determined that the vibration average in each direction, tri-directions of X, Y, Z, amplitude, frequency and test period in vibration load test；
6) on the man machine operation interface of upper industrial computer, set step 1) described in the parameter of vibration simulation load test；
7) after testing equipment no problem to be checked, Vibration on Start-up platform, start servomotor 21 and drive tested encoder to operate, the signal of tested encoder and servomotor 21 signal are monitored simultaneously；
8) test data monitored is shown in people's circle operation interface in real time; and food preservation test data; the test data gathered includes the average of each direction vibration of tri-directions of X, Y, Z in process of the test, amplitude, frequency; the signal of servomotor 21 and the signal of tested encoder; process of the test to be shut down when the signal monitored has sudden change or other abnormal conditions in time when finding; according to detection signal; tested encoder or assay device are checked, analyzes the position or fault that may be present that produce abnormal signal sudden change；Every time to often organizing test data after test, including test period, signal data, fault data etc., carry out taxonomic revision and storage.
The 4.3 tested encoder supply voltage changes test on certainty of measurement impact
5) according to the tested encoder supply voltage change requirement on certainty of measurement impact test, it is determined that the test period of the excursion of supply voltage in process of the test, the speed of change in voltage and correspondence；
6) on the man machine operation interface of upper industrial computer, set step 1) described in tested encoder supply voltage change on precision impact test parameter；
7) after testing equipment no problem to be checked, start power supply 8, start servomotor 21 and drive tested encoder to operate, the signal of tested encoder and servomotor 21 signal are monitored simultaneously；
8) test data monitored is shown in people's circle operation interface in real time; and food preservation test data; the test data gathered includes the signal of the voltage value in process of the test, the signal of servomotor 21 and tested encoder; process of the test to be shut down when the signal monitored has sudden change or other abnormal conditions in time when finding; according to detection signal; tested encoder or assay device are checked, analyzes the position or fault that may be present that produce abnormal signal sudden change；Every time to often organizing test data after test, including test period, signal data, fault data etc., carry out taxonomic revision and storage.
The detection of 4.4 pairs of tested code device signals；
The signal being required for the signal to tested encoder and servomotor 21 in (4.3) these three process of the test is tested in certainty of measurement impact detect carrying out temperature and humidity simulation loading test (4.1), tri-directions of XYZ vibration load test (4.2) and the change of tested encoder supply voltage, the signal of tested encoder can pass through detector 7 and be uploaded to upper industrial computer, can also being uploaded to upper industrial computer by capture card, the signal of servomotor 21 feeds back to upper industrial computer by servo-driver and PLC technology；
5. the encoder reliability test demand according to test simulation operating mode, temperature and humidity simulation loading test (4.1), tri-directions vibration load test (4.2) of XYZ and the change of tested encoder supply voltage can be carried out on certainty of measurement impact test simultaneously, certain order can also be installed carry out these three test, the order of test and time respectively and can change according to the requirement of reliability test.
Embodiment described in this utility model be for the ease of these those skilled in the art it will be appreciated that and application this utility model, this utility model is the embodiment of a kind of optimization, or perhaps a kind of preferably concrete technical scheme.If relevant technical staff makes the equivalent structure change or various amendment that need not move through creative work in protection domain of the present utility model when adhering to this utility model basic technical scheme.
Claims (6)
1. an encoder reliability test, including coder installing device, simulated condition device and detection and control system；It is characterized in that:
Described coder installing device includes supporting seat (12), transmission multidiameter (13) and encoder, transmission multidiameter (13) is arranged in the through hole of supporting seat (12) by bearing, transmission multidiameter (13) can drive encoder to rotate part rotation, and encoder fixed part is fixed on supporting seat (12)；
Described simulated condition device includes humiture test box (1), vibration table (2), belt wheel (10), servomotor (21)；
The inside of described humiture test box (1) casing is provided with upper and lower two-layer, upper strata is airtight space, upper sheaf space is for being simulated the reliability test of actual environment temperature, psychrometric condition, lower layer space installs vibration table (2), described humiture test box (1) is provided with humiture test box controller, and described vibration table (2) is provided with vibration table controller；
Supporting seat (12) in described coder installing device is fixed on the table top of the vibration table (2) in simulated condition device；Described transmission multidiameter (13) is connected by keying surely with described belt wheel (10)；
Described detection and control system include industrial computer, detector (7), data collecting card, Programmable Logic Controller, servo-driver；
Described Programmable Logic Controller carries out serial communication with humiture test box controller and vibration table controller respectively by RS232C, the signal of described encoder feeds back to industrial computer by detector (7) or data collecting card, and the code device signal of servomotor (21) feeds back to industrial computer by servo-driver and Programmable Logic Controller.
2. a kind of encoder reliability test according to claim 1, it is characterised in that:
Described encoder is No. 1 encoder (161)；
Described coder installing device also includes No. 1 support (141), shaft coupling (151)；
The encoder that No. 1 described encoder (161) is disengaging coupling built-in bearing, the connection axle of No. 1 encoder (161) is connected by shaft coupling (151) and transmission multidiameter (13) right-hand member are fixing；
Described No. 1 support (141) left side is fixing with supporting seat (12) to be connected, and No. 1 support (141) right side is fixed with the outer ring of No. 1 encoder (161) and is connected；
Described supporting seat (12) is provided with three through holes, pair of bearings and spacer are arranged on the left end of transmission multidiameter (13) shaft shoulder, spacer is arranged on the centre of pair of bearings, is assembled in three through holes of supporting seat (12) by the transmission multidiameter (13) being provided with bearing and spacer；
Described transmission multidiameter (13) is provided with 3, and No. 1 support (141) is provided with 3, and shaft coupling (151) is provided with 3, and No. 1 encoder (161) is provided with 3.
3. a kind of encoder reliability test according to claim 1, it is characterised in that:
Described encoder is No. 2 encoders (162)；
Described coder installing device also includes No. 2 supports (142), sleeve (152) and fixing nut (17)；
No. 2 described encoders are the encoder with built-in bearing and stator coupler, are made up of inner ring and outer ring；
No. 2 described support (142) left sides are fixing with supporting seat (12) to be connected, and No. 2 described support (142) right sides are fixing with the outer ring of No. 2 encoders (162) to be connected；
Described sleeve (152) left end is fixing with transmission multidiameter (13) shaft shoulder right side to be connected, and sleeve (152) right-hand member, through No. 2 encoder endoporus, is fixed with fixing nut (17)；
Described supporting seat (12) is provided with three through holes, pair of bearings and spacer are arranged on the left end of transmission multidiameter (13) shaft shoulder, spacer is arranged on the centre of pair of bearings, is assembled in three through holes of supporting seat (12) by the transmission multidiameter (13) being provided with bearing and spacer；
Transmission multidiameter (13) is provided with 3, and No. 2 supports (142) are provided with 3, and sleeve (152) is provided with 3, and No. 2 encoders (162) are provided with 3, and fixing nut (17) is provided with 3.
4. a kind of encoder reliability test according to claim 1, it is characterised in that:
Described encoder is No. 3 encoders (163)；
Described coder installing device also includes No. 2 supports (142), backing plate (153) and protective cover (18)；
No. 3 described encoders are the encoder without built-in bearing, are made up of magnetic grid drum and read head；
No. 2 described support (142) left sides are fixing with supporting seat (12) to be connected, described No. 2；
Described backing plate (153) one end is fixing with the magnetic grid drum in No. 3 encoders to be connected, the other end is fixing with transmission multidiameter (13) shaft shoulder right side to be connected, and described protective cover (18) is fixed on No. 2 supports (142)；
Described supporting seat (12) is provided with three through holes, pair of bearings and spacer are arranged on the left end of transmission multidiameter (13) shaft shoulder, spacer is arranged on the centre of pair of bearings, is assembled in three through holes of supporting seat (12) by the transmission multidiameter (13) being provided with bearing and spacer；
Transmission multidiameter (13) is provided with 3, and No. 2 supports (142) are provided with 3, and backing plate (153) is provided with 3, and No. 3 encoders (163) are provided with 3, and protective cover (18) is provided with 3.
5. a kind of encoder reliability test according to claim 1, it is characterised in that:
Described simulated condition device also includes servomotor bearing (20), driving pulley (19), Timing Belt (9) and expansion tightening wheel (11)；Described belt wheel (10) is provided with 3；
Described servomotor bearing (20) is fixed to the side of supporting seat (12), servomotor (21) is fixed on servomotor bearing (20), the output shaft of servomotor (21) is fixing with driving pulley (19) to be connected, driving pulley (19), belt wheel (10) engages with the inner ring of Timing Belt (9) respectively, expansion tightening wheel (11) engages with Timing Belt (9) outer ring, power is passed to belt wheel (10) by Timing Belt (9) by driving pulley (19), the identical expansion tightening wheel (11) of two structures is for tensioner Timing Belt (9) in transmission process, belt wheel (10) is fixing with transmission multidiameter (13) to be connected, and impart power to tested encoder, drive the rotation of tested encoder.
6. a kind of encoder reliability test according to claim 1, it is characterised in that:
The up direction of described Programmable Logic Controller and upper industrial computer communication, down direction connects with humiture test box controller, vibration table controller, servo-driver and power supply (8) respectively, humiture test box controller is connected with humiture test box, vibration table controller is connected with vibration table, servo-driver is connected with power interface and the encoder interfaces of servomotor, and power supply (8) provides power supply for tested encoder；
Upper industrial computer controls interface and is worked out by VB, after setting the amplitude frequency parameter of the temperature of reliability test, humidity, vibration, carries out serial communication with the next Programmable Logic Controller by RS232C on control interface；
Programmable Logic Controller output signal instruction gives humiture test box controller and vibration table controller respectively, it is adjusted temperature, humidity and vibration according to the parameter set, control interface sets the rotating speed of servomotor and after magnitude of voltage parameter that power supply (8) is supplied to tested encoder simultaneously, carry out serial communication with the next Programmable Logic Controller by RS232C, control servo-driver and power supply respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620123745.1U CN205384042U (en) | 2016-02-17 | 2016-02-17 | Encoder reliability test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620123745.1U CN205384042U (en) | 2016-02-17 | 2016-02-17 | Encoder reliability test device |
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| Publication Number | Publication Date |
|---|---|
| CN205384042U true CN205384042U (en) | 2016-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620123745.1U Withdrawn - After Issue CN205384042U (en) | 2016-02-17 | 2016-02-17 | Encoder reliability test device |
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| CN (1) | CN205384042U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108534817A (en) * | 2018-04-16 | 2018-09-14 | 吉林大学 | Grating encoder reliability test |
| CN112305360A (en) * | 2020-11-02 | 2021-02-02 | 吉林大学 | Reliability test device and method for operation panel of numerical control machine tool |
-
2016
- 2016-02-17 CN CN201620123745.1U patent/CN205384042U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108534817A (en) * | 2018-04-16 | 2018-09-14 | 吉林大学 | Grating encoder reliability test |
| CN108534817B (en) * | 2018-04-16 | 2023-09-01 | 吉林大学 | Grating encoder reliability test device |
| CN112305360A (en) * | 2020-11-02 | 2021-02-02 | 吉林大学 | Reliability test device and method for operation panel of numerical control machine tool |
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