CN112834852A - Modularized servo drive unit comprehensive test platform based on bus control - Google Patents
Modularized servo drive unit comprehensive test platform based on bus control Download PDFInfo
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- CN112834852A CN112834852A CN202110019846.XA CN202110019846A CN112834852A CN 112834852 A CN112834852 A CN 112834852A CN 202110019846 A CN202110019846 A CN 202110019846A CN 112834852 A CN112834852 A CN 112834852A
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- 238000012360 testing method Methods 0.000 title claims abstract description 32
- 238000001514 detection method Methods 0.000 claims abstract description 89
- 238000007639 printing Methods 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
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- 238000011161 development Methods 0.000 description 2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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Abstract
The invention discloses a modularized servo drive unit comprehensive test platform based on bus control, which comprises a base, wherein the test platform comprises a fixed mounting unit, a control unit, a speed detection unit and a torque detection unit, the output end of the fixed mounting unit is electrically connected with the input end of the control unit, and the output end of the control unit is electrically connected with the input ends of the speed detection unit and the torque detection unit respectively. This modularization servo drive unit comprehensive test platform based on bus control has solved tradition and when carrying out comprehensive detection to servo drive, because of receiving ambient temperature, the power size of servo drive self and the size of rotational speed, leads to the inaccurate of final detection data, and when tradition was carried out comprehensive detection to servo drive in addition, adopt a servo drive unit to correspond a servo motor's single-machine test mode many, can't realize a plurality of problems that detect simultaneously.
Description
Technical Field
The invention relates to the technical field of servo drive test, in particular to a modularized servo drive unit comprehensive test platform based on bus control.
Background
The servo drive technology is one of the key technologies for controlling numerical control machines, industrial robots and other industrial machines, and is generally concerned at home and abroad. In the last 10 years of the 20 th century, the development of microprocessor (especially digital signal processor — DSP) technology, power electronic technology, network technology, and control technology lays a good foundation for the further development of servo-driven technology. If the 20 th century 80 s is the ac servo drive technology instead of the dc servo drive technology, then the 20 th century 90 s is 10 s in which the servo drive system is fully digital, intelligent and networked. This is particularly evident in developed industrial countries, where the servo drives are divided into a position loop, a speed loop and a current loop from outside to inside according to their control objects, and the corresponding servo drives can also operate in a position control mode, a speed control mode and a torque control mode. When the servo driver operates in any mode, its corresponding mode can be given by three ways: 1. using analog quantity to give; 2. internal setting of parameter settings; 3. and (4) communication is given. The internal settings of the parameters are given fewer applications and are limited in step adjustments. The advantage of using analog quantity is quick response, and is applied to many occasions with high precision and high response, and the disadvantage is that zero drift exists, which brings difficulty to debugging, and this mode is mostly adopted by the servo of the European system and the American system. The pulse control is compatible with the common signal mode: CW/CCW (forward and reverse pulse), pulse/direction, a/B phase signals. The disadvantage is slow response.
By the retrieval of a patent number CN211401244U, the comprehensive test platform for the modular servo drive unit at least comprises a control rack, wherein the control rack comprises a support frame, an installation surface is arranged on the support frame, and a slide way is arranged on the installation surface; the servo driving unit assembly comprises a plurality of servo driving units and a mounting plate, and the plurality of servo driving units are mounted on the mounting plate; wherein the servo drive unit assembly is mounted on the mounting surface in a manner of being capable of being pushed and pulled from one side of the support frame through the slideway. The utility model discloses a make servo drive unit subassembly is followed but install on one side of the support frame push-and-pull, can realize servo drive unit subassembly's quick replacement. And further through will the inclination angle of support frame sets up to horizontal plane 75 + -5 degrees contained angle more accords with human engineering, makes things convenient for operating personnel to operate.
Although make things convenient for operating personnel to operate in above-mentioned patent, when tradition is synthesizing the detection to servo drive, because of receiving ambient temperature, servo drive self power size and the size of rotational speed, lead to finally detecting inaccurate of data, when tradition synthesizes the detection to servo drive in addition, adopt a servo drive unit to correspond a servo motor's single-machine test mode more, can't realize a plurality of while measuring.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a bus control-based modularized servo drive unit comprehensive test platform, which solves the problems that the final detection data is inaccurate due to the fact that the external temperature, the power of the servo drive and the rotating speed are received when the servo drive is comprehensively detected in the prior art, and in addition, when the servo drive is comprehensively detected in the prior art, one servo drive unit is mostly adopted to correspond to a single machine test mode of a servo motor, and a plurality of simultaneous detections cannot be realized.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a modularization servo drive unit integrated test platform based on bus control, includes the base, the top of base is provided with testing platform and total controller respectively.
The utility model discloses a speed detection device, including detection platform, fixed mounting unit, control unit, speed detecting element, moment detecting element, data display element, data upload unit and data print unit, the output of fixed mounting unit and the input electric connection of control unit, the output of control unit respectively with speed detecting element and moment detecting element's input electric connection, speed detecting element and moment detecting element's output all with data display element's input electric connection, the output of data display element and the input electric connection of data upload unit, the output of data upload unit and the input electric connection of data print unit.
Preferably, the speed detection unit comprises a first temperature control unit, an automatic clamping unit, a tacho starting unit, a first speed control unit and a first power level unit.
Preferably, the output end of the first temperature control unit is electrically connected with the input end of the automatic clamping unit, the output end of the automatic clamping unit is electrically connected with the input end of the tacho starting unit, the output end of the tacho starting unit is electrically connected with the input end of the first speed control unit, and the output end of the first speed control unit is electrically connected with the input end of the first power control unit.
Preferably, the data display unit displays all data of the speed detection unit.
Preferably, the torque detection unit includes a second temperature control unit, a second rotation speed control unit, a second power level unit, a current detection unit, and an electromagnetic torque detection unit.
Preferably, the output end of the second temperature control unit is electrically connected with the input end of the second rotation speed control unit, the output end of the second rotation speed control unit is electrically connected with the input end of the second power size unit, the output end of the second power size unit is electrically connected with the input end of the current detection unit, and the output end of the current detection unit is electrically connected with the input end of the electromagnetic torque detection unit.
Preferably, the data display unit displays all data of the torque detection unit.
Preferably, the output end of the master controller is electrically connected with the input end of the detection platform
(III) advantageous effects
The invention provides a modularized servo drive unit comprehensive test platform based on bus control. Compared with the prior art, the method has the following beneficial effects:
1. the modularized servo driving unit comprehensive test platform based on bus control controls the temperature on the test platform through a first temperature control unit to keep the temperature at a designated value, clamps the output end of a servo drive through an automatic clamping unit, then starts a speed changer starting unit to enable a speed changer starting unit to drive the output end of the servo drive to rotate, controls the size of the rotation speed of the servo drive through the first rotation speed control unit in the process of rotation, controls the servo drive power through a first power size unit to keep consistent, ensures the accuracy of speed detection units of all servo drives under the same environment and the designated value, and keeps the designated value unchanged through a second temperature control unit, a second rotation speed control unit and a second power size unit to enable the servo drive efficiency to be the designated value, the current detection unit detects the current of the servo drive, and data of the electromagnetic torque detection unit are obtained while detection is carried out, so that the problem that the final detection data is inaccurate due to the fact that the external temperature, the power of the servo drive and the rotating speed are received when the servo drive is comprehensively detected in the prior art is solved.
2. This modularization servo drive unit comprehensive test platform based on bus control, through the output of total controller and testing platform's input electric connection make testing platform and total controller can carry out comprehensive detection through a plurality of servo drives of bus simultaneous control, and when the tradition was synthesized servo drive and is examined, adopt a servo drive unit to correspond a servo motor's unit test mode more, can't realize a plurality of problems that carry out the detection simultaneously.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a block diagram of the general controller and detection platform of the present invention;
FIG. 3 is a block diagram of the detection platform of the present invention;
FIG. 4 is a block diagram of a speed detection unit according to the present invention;
fig. 5 is a block diagram of the torque detection unit of the present invention.
In the figure: 1. a detection platform; 11. a fixed mounting unit; 12. a control unit; 13. a speed detection unit; 131. a first temperature control unit; 132. an automatic clamping unit; 133. a tacho initiating unit; 134. a first rotational speed control unit; 135. a first power magnitude unit; 14. a torque detection unit; 141. a second temperature control unit; 142. a second rotational speed control unit; 143. a second power magnitude unit; 144. a current detection unit; 145. an electromagnetic torque detection unit; 15. a data display unit; 16. a data uploading unit; 17. a data printing unit; 2. a base; 3. and a master controller.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, an embodiment of the present invention provides a technical solution: the utility model provides a modularization servo drive unit comprehensive test platform based on bus control, includes base 2, and the top of base 2 is provided with testing platform 1 and total controller 3 respectively, and the output of total controller 3 and testing platform 1's input electric connection.
Referring to fig. 3, the detecting platform 1 includes a fixing and mounting unit 11, a control unit 12, and a speed detecting unit 13, the torque detection unit 14, the data display unit 15, the data uploading unit 16 and the data printing unit 17, the output end of the fixed mounting unit 11 is electrically connected with the input end of the control unit 12, the output end of the control unit 12 is electrically connected with the input ends of the speed detection unit 13 and the torque detection unit 14 respectively, the output ends of the speed detection unit 13 and the torque detection unit 14 are electrically connected with the input end of the data display unit 15, the output end of the data display unit 15 is electrically connected with the input end of the data uploading unit 16, the output end of the data uploading unit 16 is electrically connected with the input end of the data printing unit 17, the data display unit 15 displays all data of the torque detection unit 14, and the data display unit 15 displays all data of the speed detection unit 13.
Referring to fig. 4, the speed detecting unit 13 includes a first temperature control unit 131, an automatic clamping unit 132, a tacho starting unit 133, a first speed control unit 134, and a first power level unit 135, an output end of the first temperature control unit 131 is electrically connected to an input end of the automatic clamping unit 132, an output end of the automatic clamping unit 132 is electrically connected to an input end of the tacho starting unit 133, an output end of the tacho starting unit 133 is electrically connected to an input end of the first speed control unit 134, and an output end of the first speed control unit 134 is electrically connected to an input end of the first power level unit 135.
Referring to fig. 5, the torque detection unit 14 includes a second temperature control unit 141, a second rotation speed control unit 142, a second power level control unit 143, a current detection unit 144, and an electromagnetic torque detection unit 145, an output end of the second temperature control unit 141 is electrically connected to an input end of the second rotation speed control unit 142, an output end of the second rotation speed control unit 142 is electrically connected to an input end of the second power level control unit 143, an output end of the second power level control unit 143 is electrically connected to an input end of the current detection unit 144, and an output end of the current detection unit 144 is electrically connected to an input end of the electromagnetic torque detection unit 145.
When the device is used, the device is fixed through the base 2, the detection platform 1 is started in the starting master controller 3, the servo driving device is fixedly clamped through the fixed mounting unit 11, and the control unit 12 is started to respectively detect the speed detection unit 13 and the moment detection unit 14;
when the first speed detection unit 13 performs detection, firstly, the surface of the detection platform 1 is covered by using an outer cover, the temperature on the detection platform 1 is controlled by using the first temperature control unit 131, the temperature is kept at a specified value, the output end of the servo drive is clamped by using the automatic clamping unit 132, the tacho starting unit 133 is started again, the tacho starting unit 133 drives the output end of the servo drive to rotate, the size of the servo drive rotating speed is controlled by using the first rotating speed control unit 134 in the process of rotation, and the servo drive power is controlled by using the first power size unit 135 to keep consistent, so that the accuracy of the speed detection unit 13 under the same environment and the specified value of all the servo drives is ensured;
during the detection operation of the second torque detection unit 14, after the detection of the speed detection unit 13 is finished, the servo driving efficiency is kept constant by the second temperature control unit 141, the second rotating speed control unit 142 and the second power magnitude unit 143, the servo driving current is detected by the current detection unit 144, and the data of the electromagnetic torque detection unit 145 is obtained while the detection is performed;
the data detected by the speed detection unit 13 and the torque detection unit 14 are displayed by the data display unit 15, the data uploading unit 16 and the data printing unit 17, the data are uploaded and printed, and the data of the electromagnetic torque detection unit 145 is multiplied by the data of the servo driving efficiency to finally obtain the value of the torque detection unit 14.
And those not described in detail in this specification are well within the skill of those in the art.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a modularization servo drive unit comprehensive test platform based on bus control, includes base (2), its characterized in that: the top of the base (2) is respectively provided with a detection platform (1) and a master controller (3);
the detection platform (1) comprises a fixed mounting unit (11), a control unit (12), a speed detection unit (13), a moment detection unit (14), a data display unit (15), a data uploading unit (16) and a data printing unit (17), the output end of the fixed mounting unit (11) is electrically connected with the input end of the control unit (12), the output end of the control unit (12) is respectively and electrically connected with the input ends of the speed detection unit (13) and the moment detection unit (14), the output ends of the speed detection unit (13) and the moment detection unit (14) are electrically connected with the input end of the data display unit (15), the output end of the data display unit (15) is electrically connected with the input end of the data uploading unit (16), the output end of the data uploading unit (16) is electrically connected with the input end of the data printing unit (17).
2. The integrated test platform for modular servo drive units based on bus control as claimed in claim 1, wherein: the speed detection unit (13) comprises a first temperature control unit (131), an automatic clamping unit (132), a tacho starting unit (133), a first speed control unit (134) and a first power level unit (135).
3. The integrated test platform for modular servo drive units based on bus control as claimed in claim 12, wherein: the output end of the first temperature control unit (131) is electrically connected with the input end of the automatic clamping unit (132), the output end of the automatic clamping unit (132) is electrically connected with the input end of the tachometer starting unit (133), the output end of the tachometer starting unit (133) is electrically connected with the input end of the first speed control unit (134), and the output end of the first speed control unit (134) is electrically connected with the input end of the first power size unit (135).
4. The integrated test platform for the modular servo drive unit based on bus control as claimed in claim 2, wherein: the data display unit (15) displays all the data of the speed detection unit (13).
5. The integrated test platform for modular servo drive units based on bus control as claimed in claim 1, wherein: the torque detection unit (14) comprises a second temperature control unit (141), a second rotating speed control unit (142), a second power magnitude unit (143), a current detection unit (144) and an electromagnetic torque detection unit (145).
6. The integrated test platform for modular servo drive units based on bus control as claimed in claim 5, wherein: the output end of the second temperature control unit (141) is electrically connected with the input end of the second rotating speed control unit (142), the output end of the second rotating speed control unit (142) is electrically connected with the input end of the second power size unit (143), the output end of the second power size unit (143) is electrically connected with the input end of the current detection unit (144), and the output end of the current detection unit (144) is electrically connected with the input end of the electromagnetic torque detection unit (145).
7. The integrated test platform for modular servo drive units based on bus control as claimed in claim 5, wherein: the data display unit (15) displays all the data of the torque detection unit (14).
8. The integrated test platform for modular servo drive units based on bus control as claimed in claim 1, wherein: the output end of the master controller (3) is electrically connected with the input end of the detection platform (1).
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| CN202110019846.XA CN112834852A (en) | 2021-01-07 | 2021-01-07 | Modularized servo drive unit comprehensive test platform based on bus control |
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| CN202110019846.XA CN112834852A (en) | 2021-01-07 | 2021-01-07 | Modularized servo drive unit comprehensive test platform based on bus control |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4125800A (en) * | 1975-09-02 | 1978-11-14 | Contraves Gorez Corporation | Power controller with a modular power output |
| CN204178231U (en) * | 2014-11-13 | 2015-02-25 | 湖南世优电气股份有限公司 | A kind of wind generating set pitch control is apart from control system synthesis test platform |
| CN104460656A (en) * | 2014-11-13 | 2015-03-25 | 湖南世优电气股份有限公司 | Comprehensive testing platform of variable pitch control system of wind generating set and testing method thereof |
| WO2015096796A1 (en) * | 2013-12-26 | 2015-07-02 | 深圳市配天智造装备股份有限公司 | Speed reducer testing device |
| CN204807301U (en) * | 2015-04-20 | 2015-11-25 | 重庆有法数控设备有限责任公司 | Servo driver's real -time online test system |
| CN106441670A (en) * | 2016-08-31 | 2017-02-22 | 杭州威衡科技有限公司 | Servo control driving power measuring system |
| CN209044029U (en) * | 2018-08-28 | 2019-06-28 | 上海翡叶动力科技有限公司 | Motor Measuring System |
| CN110940513A (en) * | 2019-12-26 | 2020-03-31 | 上海臻强实业有限公司 | Automatic gearbox comprehensive performance test bench |
| CN111157893A (en) * | 2020-01-06 | 2020-05-15 | 重庆智能机器人研究院 | Modularized servo drive unit comprehensive test platform based on bus control |
| CN211401244U (en) * | 2020-01-07 | 2020-09-01 | 重庆智能机器人研究院 | Comprehensive test platform for modular servo drive unit |
| CN211576554U (en) * | 2020-01-21 | 2020-09-25 | 昆山艾派科技有限公司 | Performance test platform for speed reducer |
| CN112051830A (en) * | 2020-08-27 | 2020-12-08 | 深圳市显控科技股份有限公司 | Servo driver aging test method, system, device and storage medium |
-
2021
- 2021-01-07 CN CN202110019846.XA patent/CN112834852A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4125800A (en) * | 1975-09-02 | 1978-11-14 | Contraves Gorez Corporation | Power controller with a modular power output |
| WO2015096796A1 (en) * | 2013-12-26 | 2015-07-02 | 深圳市配天智造装备股份有限公司 | Speed reducer testing device |
| CN204178231U (en) * | 2014-11-13 | 2015-02-25 | 湖南世优电气股份有限公司 | A kind of wind generating set pitch control is apart from control system synthesis test platform |
| CN104460656A (en) * | 2014-11-13 | 2015-03-25 | 湖南世优电气股份有限公司 | Comprehensive testing platform of variable pitch control system of wind generating set and testing method thereof |
| CN204807301U (en) * | 2015-04-20 | 2015-11-25 | 重庆有法数控设备有限责任公司 | Servo driver's real -time online test system |
| CN106441670A (en) * | 2016-08-31 | 2017-02-22 | 杭州威衡科技有限公司 | Servo control driving power measuring system |
| CN209044029U (en) * | 2018-08-28 | 2019-06-28 | 上海翡叶动力科技有限公司 | Motor Measuring System |
| CN110940513A (en) * | 2019-12-26 | 2020-03-31 | 上海臻强实业有限公司 | Automatic gearbox comprehensive performance test bench |
| CN111157893A (en) * | 2020-01-06 | 2020-05-15 | 重庆智能机器人研究院 | Modularized servo drive unit comprehensive test platform based on bus control |
| CN211401244U (en) * | 2020-01-07 | 2020-09-01 | 重庆智能机器人研究院 | Comprehensive test platform for modular servo drive unit |
| CN211576554U (en) * | 2020-01-21 | 2020-09-25 | 昆山艾派科技有限公司 | Performance test platform for speed reducer |
| CN112051830A (en) * | 2020-08-27 | 2020-12-08 | 深圳市显控科技股份有限公司 | Servo driver aging test method, system, device and storage medium |
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Application publication date: 20210525 |