CN108645616A - The random abrasion test method of ball screw assembly, based on preload with feeding rotating speed - Google Patents
The random abrasion test method of ball screw assembly, based on preload with feeding rotating speed Download PDFInfo
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- CN108645616A CN108645616A CN201810665676.0A CN201810665676A CN108645616A CN 108645616 A CN108645616 A CN 108645616A CN 201810665676 A CN201810665676 A CN 201810665676A CN 108645616 A CN108645616 A CN 108645616A
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- screw assembly
- ball screw
- rotating speed
- ball
- feeding rotating
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/025—Test-benches with rotational drive means and loading means; Load or drive simulation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/027—Test-benches with force-applying means, e.g. loading of drive shafts along several directions
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Abstract
The present invention provides the random abrasion test methods of ball screw assembly, based on preload with feeding rotating speed, belong to the accuracy detection technical field of machine tool feed unit.By feeding rotating speed simulated loading system and preload simulated loading system, speed and load change suffered by ball screw assembly, in actual condition are simulated.Force cylinder body is controlled using program, and random load is applied to simulate its practical stand under load operating mode during military service to ball screw assembly,；Random rotating speed is applied to ball screw assembly, to simulate its actual operating mode during military service using program control AC servo motor.By the trueness error of the device measurings such as laser interferometer, grating scale ball screw assembly, in the process of running, and then study abrasion condition of two kinds of random operating modes to ball screw assembly,.
Description
Technical field
The present invention provides a kind of test methods probed into ball screw assembly, and worn at random, and in particular to one kind being based on pre-add
The random abrasion test method of ball screw assembly, of load and the feeding controllable rig for testing of rotating speed, belongs to the essence of machine tool feed unit
Spend detection technique field.
Background technology
Ball screw assembly, is a kind of screw transmission system, by leading screw, nut, ball, pre- tabletting, reverser, dust excluder etc.
Structural elements form.It is using ball as intermediate transmission body, the closed circuit that is constituted between leading screw and nut screw slot
Middle cycle, to complete the transmission of rotation-linear motion.Since ball screw assembly, has transmission efficiency, high sensitivity, biography
It is dynamic steady, axial gap can be eliminated, improve the advantages that axial rigidity, be therefore widely used in numerically-controlled machine tool, servo manipulator,
The various fields such as food processing and packaging.Especially in accurate digital control equipment, ball screw assembly, feed system has become it
Important component part.
Ball screw assembly, is as precision transmission system, and during military service, shadow is fluctuated by the feeding speed dynamic of leading screw
It rings, while the time-varying contact load between by leading screw raceway and ball and between nut rolling way and ball is influenced.These operating modes
Factor makes the precision stability of ball screw assembly, that time-varying fade characteristics be presented.It is embodied in：In feeding rotating speed, the raceway of leading screw
Between ball under the multifactor dynamic fluctuation duty parameter joint effect such as contact load, lead to the kinematic error of ball screw assembly,
With real-time fluctuations, dynamic time-varying characteristics are presented in precision stability.
Invention content
The present invention proposes the test method worn at random for probing into ball screw assembly,.Force cylinder body is controlled using program
Random load is applied to simulate its practical stand under load operating mode during military service to ball screw assembly,；It is watched using program control exchange
It takes motor and random rotating speed is applied to ball screw assembly, to simulate its actual operating mode during military service.By laser interference
The trueness error of the device measurings such as instrument, grating scale ball screw assembly, in the process of running, and then two kinds of random operating modes are studied to rolling
The abrasion condition of ballscrew pair.
The object of the present invention is to provide a kind of based on preload and feeds the ball-screw of the controllable rig for testing of rotating speed
Secondary random abrasion test method.By simulation to two kinds of actual conditions and using the measurement of high precision apparatus, ball is obtained
The random abrasion condition of lead screw pair.
To achieve the above object, the technical solution adopted by the present invention is the ball-screw based on preload with feeding rotating speed
Secondary random abrasion test method realizes that the testing stand of this method includes feeding rotating speed simulated loading system 1, ball-screw 2, work
Platform 3, No. 1 oil cylinder 4 of Z-direction, No. 2 oil cylinders 5 of Z-direction, preload simulated loading system 6, base station 7 and X are to No. 1 oil cylinder 8；Ball-screw
2 one end is connect with feeding rotating speed simulated loading system 1, and the other end of ball-screw 2 is connect with workbench 3, No. 1 oil cylinder of Z-direction
4, No. 2 oil cylinders 5 of Z-direction are disposed side by side on workbench 3；The side of workbench 3 is equipped with X to No. 1 oil cylinder 8, and preload simulation adds
Loading system 6 is arranged in the end of base station 7, and feeding rotating speed simulated loading system 1, ball-screw 2, workbench 3 are installed in base station 7
On.
Concrete operation step of the present invention is as follows：
Step 1：Testing stand inspection.Overall inspection is carried out to testing stand, it is ensured that testing stand does not influence to use and precision
Open defect, working face do not have corrosion, damage, influence factors, the protective coating of non-working surface such as foreign matter do not destroy, it is ensured that
Testing stand carries out progress of the unloaded running-in in favor of subsequent step；
Step 2：Unloaded running-in.Coating lubricating oil is carried out to ball screw assembly, to ensure to be driven in unloaded runing condensation procedure
Component is in Optimum Lubrication.Start feeding rotating speed simulated loading system, testing stand is made to run in the unloaded state, leads to simultaneously
Cross the adjusting that user interface carries out feeding rotating speed.It after being fully warmed-up, moves back and forth, it is ensured that testing stand each section is just
Often stop after operating and normal program operation；
Step 3：Initial precision measure.The initial linear error of ball screw assembly, is measured using laser interferometer,
Ensure that measurement ball screw assembly, meets the accuracy standard of accuracy class, to ensure the data reliability of subsequent experimental；
Step 4：Control variable experiment.The rotating speed that AC servo motor is controlled using program is changed in certain section with mould
The practical feeding speed conditions of quasi- ball screw assembly,.Load that force cylinder body applies testing stand is controlled certain using program
Variation is to simulate the actual loading operating mode of ball screw assembly, in section.Run time is set as 1000h, during which need to ensure ball wire
Temperature, lubrication, operating condition of thick stick pair etc. are in plateau.At interval of 10h, using laser interferometer to its linearity error into
Row measures, and record data are in case subsequent processing；
Step 5：The data of acquisition are handled, effect of attrition knot of two kinds of random operating modes to ball screw assembly, is obtained
Fruit.
Compared with the existing technology compared with the present invention is beneficial in that：
1) apparatus of the present invention can enable the preload of simulation loading using microcontroller, servo motor cooperation force cylinder body
Time-varying variation is carried out according to program, and the cylinder body that exerts a force can carry out workbench tri- directions X, Y, Z totally five load click-through
The simulation loading of row preload realizes the simulation to actual condition preload；
2) apparatus of the present invention coordinate servo motor using microcontroller, and the feeding rotating speed of simulation loading can be enabled to be carried out according to program
Time-varying changes, and realizes the simulation that rotating speed is fed to actual condition；
3) present invention ensures that preload and feeding rotating speed can be according to programs in experimentation using the method monitored in real time
Normal load.
Description of the drawings
Fig. 1 is testing stand overall schematic；
Fig. 2 is that ball screw assembly, feeds rotation speed change figure；
Fig. 3 is ball screw assembly, preload variation diagram.
In figure, 1 is feeding rotating speed simulated loading system；2 be ball-screw；3 be workbench；4 be No. 1 oil cylinder of Z-direction；5 be Z
To No. 2 oil cylinders；6 be preload simulated loading system；7 be base station；8 be X to No. 1 oil cylinder.
Specific implementation mode
Feeding rotating speed simulated loading system is connected with ball screw assembly, by shaft coupling, by inputting different rotating speeds control rolling
Ballscrew secondary motion drives workbench to make straight-line displacement.Preload simulated loading system and X are to No. 1 oil cylinder, X to No. 2 oil
No. 2 cylinder, Y-direction oil cylinder, No. 1 oil cylinder of Z-direction, Z-direction oil cylinders are connected, and pass through load of 5 oil cylinders on workbench application different directions.
Simulation loading rotating speed is SIN function formula in Fig. 2, can be changed to the function of other forms as needed；
Simulation loading load is SIN function formula in Fig. 3, can be changed to the function of other forms as needed.
The random abrasion test method of ball screw assembly, based on preload with feeding rotating speed, realizes the testing stand of this method
Including feeding rotating speed simulated loading system 1, ball-screw 2, workbench 3, No. 1 oil cylinder 4 of Z-direction, Z-direction No. 2 oil cylinders 5, preloads
Simulated loading system 6, base station 7 and X are to No. 1 oil cylinder 8；One end of ball-screw 2 is connect with feeding rotating speed simulated loading system 1,
The other end of ball-screw 2 is connect with workbench 3, and No. 2 No. 1 oil cylinder 4 of Z-direction, Z-direction oil cylinders 5 are disposed side by side on workbench 3；Work
The side for making platform 3 is equipped with X to No. 1 oil cylinder 8, and preload simulated loading system 6 is arranged in the end of base station 7, feeds rotating speed mould
Quasi- loading system 1, ball-screw 2, workbench 3 are installed on base station 7.
Concrete operation step of the present invention is as follows：
Step 1：Testing stand inspection.Overall inspection is carried out to testing stand, it is ensured that testing stand does not influence to use and precision
Open defect, working face do not have corrosion, damage, influence factors, the protective coating of non-working surface such as foreign matter do not destroy, it is ensured that
Testing stand carries out progress of the unloaded running-in in favor of subsequent step；
Step 2：Unloaded running-in.Coating lubricating oil is carried out to ball screw assembly, to ensure to be driven in unloaded runing condensation procedure
Component is in Optimum Lubrication.Start feeding rotating speed simulated loading system, testing stand is made to run in the unloaded state, leads to simultaneously
Cross the adjusting that user interface carries out feeding rotating speed.It after being fully warmed-up, moves back and forth, it is ensured that testing stand each section is just
Often stop after operating and normal program operation；
Step 3：Initial precision measure.The initial linear error of ball screw assembly, is measured using laser interferometer,
Ensure that measurement ball screw assembly, meets the accuracy standard of accuracy class, to ensure the data reliability of subsequent experimental；
Step 4：Control variable experiment.The rotating speed that AC servo motor is controlled using program is changed in certain section with mould
The practical feeding speed conditions of quasi- ball screw assembly,.Load that force cylinder body applies testing stand is controlled certain using program
Variation is to simulate the actual loading operating mode of ball screw assembly, in section.Run time is set as 1000h, during which need to ensure ball wire
Temperature, lubrication, operating condition of thick stick pair etc. are in plateau.At interval of 10h, using laser interferometer to its linearity error into
Row measures, and record data are in case subsequent processing；
Step 5：The data of acquisition are handled, effect of attrition knot of two kinds of random operating modes to ball screw assembly, is obtained
Fruit.
Claims (1)
1. the random abrasion test method of ball screw assembly, based on preload with feeding rotating speed, realizes the testing stand packet of this method
Include feeding rotating speed simulated loading system (1), ball-screw (2), workbench (3), No. 1 oil cylinder (4) of Z-direction, No. 2 oil cylinders (5) of Z-direction,
Preload simulated loading system (6), base station (7) and X are to No. 1 oil cylinder (8)；One end of ball-screw (2) and feeding rotating speed mould
Quasi- loading system (1) connection, the other end of ball-screw (2) are connect with workbench (3), No. 2 No. 1 oil cylinder (4) of Z-direction, Z-direction oil cylinders
(5) it is disposed side by side on workbench (3)；The side of workbench (3) is equipped with X to No. 1 oil cylinder (8), preload simulation loading system
(6) setting unite in the end of base station (7), feeding rotating speed simulated loading system (1), ball-screw (2), workbench (3) are respectively mounted
On base station (7)；
It is characterized in that：The concrete operation step of this method is as follows,
Step 1：Testing stand inspection；Overall inspection is carried out to testing stand, it is ensured that testing stand is not influenced using the appearance with precision
Defect, working face do not have corrosion, damage, foreign materials away factor, and the protective coating of non-working surface does not destroy, it is ensured that testing stand into
Row zero load running-in in favor of subsequent step progress；
Step 2：Unloaded running-in；Coating lubricating oil is carried out to ball screw assembly, to ensure the transmission parts in unloaded runing condensation procedure
It is in Optimum Lubrication；Start feeding rotating speed simulated loading system, so that testing stand is run in the unloaded state, while passing through use
Family operation interface carries out the adjusting of feeding rotating speed；It after being fully warmed-up, moves back and forth, it is ensured that testing stand each section is normally transported
Turn and stops after normal program operation；
Step 3：Initial precision measure；The initial linear error of ball screw assembly, is measured using laser interferometer, it is ensured that
Measurement ball screw assembly, meets the accuracy standard of accuracy class, to ensure the data reliability of subsequent experimental；
Step 4：Control variable experiment；The rotating speed that AC servo motor is controlled using program is changed in certain section to simulate rolling
The practical feeding speed conditions of ballscrew pair；Load that force cylinder body applies testing stand is controlled in certain section using program
Interior variation is to simulate the actual loading operating mode of ball screw assembly,；Run time is set as 1000h, during which need to ensure ball screw assembly,
Temperature, lubrication, operating condition be in plateau；At interval of 10h, its linearity error is surveyed using laser interferometer
Amount, record data are in case subsequent processing；
Step 5：The data of acquisition are handled, effect of attrition result of two kinds of random operating modes to ball screw assembly, is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810665676.0A CN108645616A (en) | 2018-06-26 | 2018-06-26 | The random abrasion test method of ball screw assembly, based on preload with feeding rotating speed |
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| CN201810665676.0A CN108645616A (en) | 2018-06-26 | 2018-06-26 | The random abrasion test method of ball screw assembly, based on preload with feeding rotating speed |
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Cited By (4)
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|---|---|---|---|---|
| CN109387363A (en) * | 2018-10-22 | 2019-02-26 | 北京工业大学 | A kind of ball screw assembly, positioning accuracy decline prediction technique |
| CN109556778A (en) * | 2018-12-06 | 2019-04-02 | 北京工业大学 | A kind of ball screw assembly, pretightning force on-line monitoring method based on electric current |
| CN110132575A (en) * | 2019-05-14 | 2019-08-16 | 重庆大学 | A kind of test platform of ball screw system wear-out life |
| CN111521391A (en) * | 2020-05-06 | 2020-08-11 | 北京工业大学 | Ball screw pair thermal deformation and dynamic characteristic testing device |
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| CN109387363A (en) * | 2018-10-22 | 2019-02-26 | 北京工业大学 | A kind of ball screw assembly, positioning accuracy decline prediction technique |
| CN109387363B (en) * | 2018-10-22 | 2020-02-11 | 北京工业大学 | Ball screw pair positioning accuracy recession prediction method |
| CN109556778A (en) * | 2018-12-06 | 2019-04-02 | 北京工业大学 | A kind of ball screw assembly, pretightning force on-line monitoring method based on electric current |
| CN110132575A (en) * | 2019-05-14 | 2019-08-16 | 重庆大学 | A kind of test platform of ball screw system wear-out life |
| CN111521391A (en) * | 2020-05-06 | 2020-08-11 | 北京工业大学 | Ball screw pair thermal deformation and dynamic characteristic testing device |
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Application publication date: 20181012 |