Sichuan Chengbang Haoran Measurement and Control Technology Co., Ltd.
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EOL4000 - Precision reducer (RV/ Harmonic/planet) factory on-line test system

At present, the competition of industrial robots has risen to the level of national industrial strategy, and its key components precision reducer manufacturing factory inspection. In order to ensure the high rigidity and positioning accuracy of industrial robots, RV reducer should have the characteristics of short transmission chain, small physical examination, large power and high accuracy, and high requirements for manufacturing and testing. At present, the precision reducer (RV/ harmonic/planet) manufacturer's production demand, the entire production beat and detection beat time and process, production line production completed direct docking with the test. Precision reducer (RV/ harmonic/planet) must ensure the performance and quality of reducer products in factory detection, so it is particularly important to strictly test and analyze the performance of reducer. The system is based on the GB/T 35089-2018 precision gear transmission test method for robots and the comprehensive performance test of each reducer according to the requirements of other national standards.

Case Presentation

EOL4000 -- Precision reducer (RV/ Harmonic/planet) factory online test system -- product background

Summary:

At present, the competition of industrial robots has risen to the level of national industrial strategy, and its key components precision reducer manufacturing factory inspection. In order to ensure the high rigidity and positioning accuracy of industrial robots, RV reducer should have the characteristics of short transmission chain, small physical examination, large power and high accuracy, and high requirements for manufacturing and testing. At present, the precision reducer (RV/ harmonic/planet) manufacturer's production demand, the entire production beat and detection beat time and process, production line production completed direct docking with the test. Precision reducer (RV/ harmonic/planet) must ensure the performance and quality of reducer products in factory detection, so it is particularly important to strictly test and analyze the performance of reducer. The system is based on the GB/T 35089-2018 precision gear transmission test method for robots and the comprehensive performance test of each reducer according to the requirements of other national standards.

Bench pictures

Reference standards:

Test Methods for precision gear Transmissions for Robots, GB/T 35089-2018

Precision cycloid pin-wheel reducer for robots

Harmonic gear reducer for robot

L GB/T 14118-1993 Harmonic drive reducer

L GBT 11281-2009 General technical conditions for gear reducers for micromotors

L JB/T 5558-2015 Speed reducer Test Method

L Sample of foreign famous reducer products

EOL4000 -- Precision reducer (RV/ Harmonic/planet) factory on-line test system -- Topology

EOL4000 -- Precision reducer (RV/ harmonic/planet) is manufactured with modular, integrated design, ergonomic operation, manual/automatic mode control. It is composed of mechanical system, automatic aligning system, electrical system and upper computer software system.

Mechanical system: the whole mechanical platform, driving unit, loading unit, shafting connection part and other equipment.

L Automatic centering system: it is composed of docking and pressing system of tested parts, driving and locking system, load and locking device, etc.

L Electrical system: drive, load control, sensor (torque, speed, vibration, temperature, Angle) real-time data acquisition system, data acquisition, alarm system, noise, serial scanning system and other equipment composition.

L Software system: Upper computer test software is divided into data acquisition and communication module, data acquisition and setting module, data real-time exchange and control module, and data processing module according to the system. The whole process control program is adopted to complete the product qualification evaluation through data acquisition, control and processing, and the data link of the entire production system is complete through the matching between the EOL4000 production line workstation system and the production management system, so that the original data of the production inspection system can be traceable.

EOL4000 -- Precision reducer (RV/ Harmonic/planet) factory online test system -- System functions

Basic range and accuracy:

● Driving power range: 100W~50KW power level, supporting customization of other power levels;

● Driving speed range: 0~9000rpm; (depending on the power);

● Driving torque range: 0-500n. m;

● Speed measurement accuracy: ±1r/min;

● Torque measurement accuracy: ±0.05%F.S;

● Angle measurement range: 0-360°;

● Precision: ±1";

● Load power range: 100W~50KW power level, supporting customization of other power levels;

● Load speed range: 0~200rpm; (depending on the power);

● Load torque range: 0-10000N.m;

● Speed measurement accuracy: ±1r/min;

● Torque measurement accuracy: ±0.05%F.S;

● Angle measurement range: 0-360°;

● Precision: ±1";

● Other parameters: noise, etc

Experimental items:

No-load friction torque, start torque, reverse start torque, transmission efficiency test, overload test, hysteresis curve (gap and gap), torsional stiffness, backslip test, transmission error, life test, noise test, temperature rise test, vibration test (vibration test), bending stiffness

And so on.

EOL4000 - Precision reducer (RV/ Harmonic/planet) factory on-line test system - main features

01 Functional Modularization

All the platforms are modularized by function, which is concentrated in one test system in the form of module combination.

02 Advanced means of measurement

Advanced real-time measurement and control system is adopted, including input Angle test, rotational speed torque test, etc., and high-sampling module, which can meet the requirements of high precision and rapid response of the test system. Besides, transient data and eigenvalue data are provided to facilitate the comprehensive analysis of the test process data by the software in the later stage.

The test items are complete

According to the test requirements stipulated by national standards, the test items can be increased or decreased according to the configuration module, which can meet the test items for various types of tests

04 Driver/load mode

Driven by servo motor as the subjects/load, internal adopts common dc bus models, change the traditional way of load and improve the system of dynamic measurement of torque and rotational speed range and precision, improve load (is/reverse, the drag), shorten the response time of load, which can realize arbitrary load curve of load, high simulation using real-time operation condition on the site.

05 Humanized design

Adopt professional precision reducer test bench, adopt quick aligning system in fixture, easy to load and unload and coaxial adjustment, can adapt to the installation of different tested parts, the system operation adopts piano platform/cabinet + computer desk control mode, can complete the unit set complete all test operation layout.

Customized test software

The test system test software developed by Sichuan Chengbang software research and development team categorizes the software interface and process according to the national standard test items to reduce repeated tests and greatly improve the work efficiency of test personnel. It also has the functions of real-time curve drawing, transient value capture, trend curve drawing and analysis, multi-parameter combination display, qualification determination, report export and so on.

EOL4000 - Precision reducer (RV/ harmonic/planet) factory on-line test system - main applications

L Various RV/ harmonic/planetary reducers

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