CN102778347B - Mechanical loading device for main shaft or servo shaft of digital control system - Google Patents

Mechanical loading device for main shaft or servo shaft of digital control system Download PDF

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Publication number
CN102778347B
CN102778347B CN201210237388.8A CN201210237388A CN102778347B CN 102778347 B CN102778347 B CN 102778347B CN 201210237388 A CN201210237388 A CN 201210237388A CN 102778347 B CN102778347 B CN 102778347B
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China
Prior art keywords
main shaft
tie
axis servomotor
plate
inertia
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Expired - Fee Related
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CN201210237388.8A
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Chinese (zh)
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CN102778347A (en
Inventor
刘强
吕斗攀
彭翀
夏继强
高连生
王云庆
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Beihang University
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Beihang University
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Abstract

The invention discloses a mechanical loading device for a main shaft or a servo shaft of a digital control system. The mechanical loading device mainly consists of the main shaft or the servo shaft, an inertia disc, a connecting disc, a fastening screw, a socket head cap screw, a hex head screw and other parts; the mechanical loading device can design required load inertia according to parameters of different models of motors and accordingly realizes that a motor is loaded with constant torque in the startup stage, and the motor is enabled to be normal and reliable in the high-speed operating state. The mechanical loading device can be applicable to the field test of the main shaft and the servo shaft of the digital control system under load condition in large amount, after the main shafts and servo shafts of different digital control systems are loaded, a servo amplifier still can be guaranteed to operate normally, and the motor still has higher sensitivity and good dynamic response characteristic; meanwhile, the mechanical loading device is convenient to machine and mount, and is easy to disassemble, and further, the mechanical loading device can be applicable to a large number of system loading tests on the premise that the requirement on load condition is not high.

Description

A kind of mechanical type charger for digital control system main shaft or axis servomotor
Technical field
The present invention relates to a kind of charger of simulating required load, specifically a kind of for the inertia disc type charger run normal under digital control system main shaft or axis servomotor loading condition, this charger meets motor load Inertia Matching principle, can the simple load environment of analog variation rule, process easy installation and reliable, belong to mechanical hook-up simple and practical in loading equipemtn field tests.
Background technology
The reliability level of digital control system and numerically-controlled machine, for numerical control equipment normally run with numerical control production firm improve product competitiveness have vital effect.Reliability of numerical control system experimental test is under reliability engineering theoretical direction, by relevant national standard and specification, combining with digital control machine tool applications feature, obtains the data such as mean time between failures MTBF, failure message and the running status reflecting reliability of numerical control system level by actual tests test.In order to fully test and Experimental Comparison, except running under normal idle condition, test under laboratory simulation actual working environment carries out loading environment to digital control system.
Load application is varied, internal forces distribution for making structure or model obtain expection in civil engineering structure tests and analysis, by loading equipemtn or device, various effect is applied to tested object, then measurement data is analyzed and then the load-bearing capacity of evaluation structure or model, thus perfect frame and the theory of computation.The loading method commonly used has weight loading, mechanical tool loading, hydraulic-pneumatic loading, inertial force loading, electromagnetism loading and excited vibration loading etc.In addition, in vehicle flight control system l-G simulation test, loading system and load simulator are widely used equally.For acting on the aerodynamic moment on rudder face aloft when simulated flight device flies, the loading spectrum that load simulator needs accurate reproduction control system to provide, thus proposes high requirement to loading accuracy and rapidity.Load simulator successively experienced by the stages such as elementary mechanical type inertia load, the load control system of mimic channel structure and the digital load simulator of computer utility.
Early stage mechanical load method is simple, but can only the simple load of analog variation rule, and can not continuously adjustabe; Electro-hydraulic Loading Servo System has been tending towards ripe, can load continuously, far distance controlled etc.; Due to the continuous lifting of motor performance, add the application of Computer Control Technology, based on torque motor, dynamometer machine and based on the electric loading system of exciting electromagnet damper also at development.
For the digital control system performance test reaching 30 different model spindle motors and axis servomotor motor, consider that demand is simple in earlier stage, the factors such as electro-hydraulic loading and electric loading system volume power consumption is large, installation complicated operation, adopt mechanical type loading method, the load inertia needed for a loading disk simulation is designed according to Inertia Matching principle, and reliably install, ensure required load-up condition.
Summary of the invention
The object of the invention is to be widely used in the on-the-spot test under digital control system main shaft or axis servomotor bringing onto load condition, after guarantee loads different NC system main shaft or axis servomotor, servoamplifier still can normally work, and motor still has higher sensitivity and good dynamic response characteristic; Process easy for installation simultaneously, be easy to dismounting, under the less demanding prerequisite of loading condition, be applied to the system loads test that quantity is large.
The technical solution used in the present invention is: a kind of mechanical type charger for digital control system main shaft or axis servomotor, and this device comprises: main shaft or axis servomotor, inertia disc, holding screw, tie-plate, socket head cap screw and hex screw; Described inertia disc is connected by the socket head cap screw be distributed in described in this tie-plate end face with described tie-plate, then circumference location is carried out by being distributed in holding screw described in described tie-plate periphery and described main shaft or axis servomotor, be threaded at described tie-plate end face described hex screw and described main shaft or axis servomotor end face, make described tie-plate axial location more firm.
Wherein, be clearance fit between described inertia disc and described main shaft or axis servomotor, be interference fit between described tie-plate and described main shaft or axis servomotor, realize the radial location of this charger.
Wherein, according to the concrete condition of described main shaft and axis servomotor, if containing keyway on described main shaft and axis servomotor, described inertia disc and described tie-plate mill out keyway, utilize key to connect and make this charger more reliable in the situation of running up.
Wherein, when described tie-plate end face is threaded with described hex screw and described main shaft or axis servomotor end face, if described main shaft or axis servomotor end face there is no threaded hole or very little time omit and connect herein.
Wherein, according to Inertia Matching principle, the moment of inertia choosing described inertia disc is described main shaft or axis servomotor respective motor rotor moment of inertia 2 times.
Wherein, choosing described inertia disc is steel material, by the moment of inertia formula J=0.77D of right cylinder steel 4h × 10 -12kgm 2self-defined inertia disc diameter and then obtain inertia disc thickness H.
Wherein, described self-defined inertia disc diameter gets D=200mm.
Wherein, be interference fit between described tie-plate inner circular aperture and described main shaft or axis servomotor, the magnitude of interference controls 0.005-between 0.01mm, ensure good radial location.
The present invention has compared following advantage with other electro-hydraulic loading with electronic, electromagnetism loading system:
1, the feature that this device is the most outstanding is the actual loading conditions that can realize digital control system main shaft or axis servomotor simply and easily, and according to the inertia disc of different NC system spindle motor or the load of axis servomotor motor design parameter design, processing is installed
2, when this device can realize electric motor starting, permanent torque loads, meet under loading condition simple to operate compared with other loading systems, without the need to considering that such as power consumption noise is excessive, saturation effects, hysteresis effect, low speed cannot load, the factors such as loading moment and current non-linear relation;
3, this device belongs to " Zero-drive Chain " type Direct Driving System, eliminates the impact of conventional ADS driving mode backlash nonlinearity factor, ensures dynamic property and the stability of system;
4, this device is low compared with cost that other loading systems consume, economic and practical, and is easy to dismounting, when needs be loaded number of devices large application convenient.
Accompanying drawing explanation
Fig. 1 is a kind of mechanical type charger wiring layout for digital control system main shaft or axis servomotor of the present invention;
Fig. 2 is inertia disc three-dimensional plot of the present invention;
Fig. 3 is tie-plate three-dimensional plot of the present invention.
Label declaration in accompanying drawing is as follows:
1, main shaft (or axis servomotor); 2, inertia disc; 3, holding screw;
4, tie-plate; 5, socket head cap screw; 6, hex screw.
Embodiment
The present invention is a kind of mechanical type charger for digital control system main shaft or axis servomotor, refers to Fig. 1, Fig. 2, Fig. 3, comprises main shaft or axis servomotor 1, inertia disc 2, holding screw 3, tie-plate 4, socket head cap screw 5, part such as hex screw 6 grade.According to Inertia Matching principle, the moment of inertia choosing inertia disc 2 is main shaft or axis servomotor 1 respective motor rotor moment of inertia 2 times, chooses inertia disc 2 for steel material, by the moment of inertia formula J=0.77D of right cylinder steel 4h × 10 -12kgm 2can self-defined inertia disc diameter (such as getting D=200mm) and then obtain inertia disc thickness H.Due to during assembling containing tie-plate 4 part, so the impact of the moment of inertia that inertia disc center hole cuts can be ignored when calculating, the moment of inertia being obtained total assembly by three-dimensional wiring layout data compared to required load inertia error within 0.5%.
Be interference fit between tie-plate 4 inner circular aperture and main shaft or axis servomotor 1, the magnitude of interference controls 0.005-between 0.01mm, ensure good radial location.According to main shaft or axis servomotor diameter of axle size determination tie-plate 4 inner circular aperture size, tie-plate inner face is taken as about 10mm to the thickness of outer face.The size of connection socket head cap screw 5, holding screw 3 is determined according to Machine Design position components principle, and then the circumferential size of foundation socket head cap screw 5 and diameter of axle size determination tie-plate 4; After selected holding screw 3, reserve the gross thickness that the suitable space size thickness of adding between interior outer face just can determine tie-plate, if the tie-plate determined 4 thickness is greater than inertia disc 2 thickness, hexagon head bolt should be selected to connect herein.According to main shaft or axis servomotor end-face helical hole dimension determination tie-plate 4 central through hole size, so far the concrete size of tie-plate is determined.
To knock with mallet during assembling or copper rod touches loading disk 2 and tie-plate 4 loads main shaft or axis servomotor 1, then to correspond on axle at tie-plate periphery with power drill and get out small rut, load holding screw 3; Loading disk is connected with tie-plate socket head cap screw 5 or hexagon head bolt; Be threaded at tie-plate end face hex screw 6 and axial end, load normal reliable when ensureing to run up and do not produce loosening.
The part that the present invention does not elaborate belongs to techniques well known.

Claims (1)

1. the mechanical type charger for digital control system main shaft or axis servomotor, it is characterized in that: this mechanical type charger comprises: main shaft or axis servomotor (1), inertia disc (2), holding screw (3), tie-plate (4), socket head cap screw (5) and hex screw (6), described inertia disc (2) is connected by the described socket head cap screw (5) being distributed in this tie-plate (4) end face with described tie-plate (4), holding screw (3) is distributed in described tie-plate (4) periphery, then tie-plate passes through described holding screw (3) and described main shaft or axis servomotor (1) and carries out circumference location, be threaded at described tie-plate (4) end face described hex screw (6) and described main shaft or axis servomotor (1) end face, make described tie-plate (4) axial location more firm,
Be clearance fit between described inertia disc (2) and described main shaft or axis servomotor (1), be interference fit between described tie-plate (4) and described main shaft or axis servomotor (1), realize the radial location of this charger;
According to the concrete condition of described main shaft or axis servomotor (1), if described main shaft or axis servomotor (1) are above containing keyway, described inertia disc (2) and described tie-plate (4) mill out keyway, utilizes key to connect and make this mechanical type charger reliable in the situation of running up;
When being threaded with described hex screw (6) and described main shaft or axis servomotor (1) end face for described tie-plate (4) end face, if described main shaft or axis servomotor (1) end face do not have to omit during threaded hole to connect herein;
According to Inertia Matching principle, the moment of inertia choosing described inertia disc (2) is described main shaft or axis servomotor (1) respective motor rotor moment of inertia 2 times;
Choosing described inertia disc (2) is steel material, by the moment of inertia formula J=0.77D of right cylinder steel 4h × 10 -12kgm 2self-defined inertia disc diameter and then obtain inertia disc thickness H;
Described self-defined inertia disc diameter gets D=200mm;
Be interference fit between described tie-plate (4) inner circular aperture and described main shaft or axis servomotor (1), the magnitude of interference controls 0.005-between 0.01mm, ensure good radial location.
CN201210237388.8A 2012-07-09 2012-07-09 Mechanical loading device for main shaft or servo shaft of digital control system Expired - Fee Related CN102778347B (en)

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CN102778347B true CN102778347B (en) 2015-06-17

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103837339B (en) * 2014-03-26 2016-03-09 中国工程物理研究院机械制造工艺研究所 A kind of dynamic servo power-driven system
CN104155608B (en) * 2014-09-04 2017-05-31 上海航天电子通讯设备研究所 One kind rotates load simulating device
CN111331154A (en) * 2020-04-14 2020-06-26 陕西诺贝特自动化科技有限公司 Load automatic lathe that has truss manipulator

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06331497A (en) * 1993-05-18 1994-12-02 Kanzaki Kokyukoki Mfg Co Ltd Load testing device
CN2839999Y (en) * 2005-03-31 2006-11-22 江苏大学 Adjustable rotary inertia rotor disc apparatus of electric eddy current retarder test table
CN202403900U (en) * 2011-12-20 2012-08-29 中国飞机强度研究所 Loading device for brake test for aircraft wheel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06331497A (en) * 1993-05-18 1994-12-02 Kanzaki Kokyukoki Mfg Co Ltd Load testing device
CN2839999Y (en) * 2005-03-31 2006-11-22 江苏大学 Adjustable rotary inertia rotor disc apparatus of electric eddy current retarder test table
CN202403900U (en) * 2011-12-20 2012-08-29 中国飞机强度研究所 Loading device for brake test for aircraft wheel

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
《对几种刚体转动惯量的研究》;周瑞雪;《贵阳学院学报》;20110930;第6卷(第3期);第10-17页 *

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