CN106289768A - Leading screw, guide rail application system simulated condition laboratory table - Google Patents

Leading screw, guide rail application system simulated condition laboratory table Download PDF

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Publication number
CN106289768A
CN106289768A CN201610835384.8A CN201610835384A CN106289768A CN 106289768 A CN106289768 A CN 106289768A CN 201610835384 A CN201610835384 A CN 201610835384A CN 106289768 A CN106289768 A CN 106289768A
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CN
China
Prior art keywords
leading screw
guide rail
supporting plate
hydraulic
simulated condition
Prior art date
Application number
CN201610835384.8A
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Chinese (zh)
Inventor
荣伯松
王兆坦
宋现春
李保民
张承瑞
白云方
Original Assignee
山东博特精工股份有限公司
山东大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by 山东博特精工股份有限公司, 山东大学 filed Critical 山东博特精工股份有限公司
Priority to CN201610835384.8A priority Critical patent/CN106289768A/en
Publication of CN106289768A publication Critical patent/CN106289768A/en

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00Testing of machine parts
    • G01M13/02Gearings; Transmission mechanisms
    • G01M13/025Test-benches with rotational drive means and loading means; Load or drive simulation

Abstract

The invention discloses leading screw, guide rail application system simulated condition laboratory table, including lathe bed, the guide rail of parallel arranged, leading screw, the servomotor of driving screw turns, guide rail is arranged on lathe bed by clamp body, also includes that supporting plate, supporting plate load hydraulic system, the axially loaded hydraulic system of leading screw.The present invention can simulate under different actual condition easily, guide rail and leading screw performance element are tested, load simulating device uses servo hydraulic system, multiple regular load and the simulation of inclined square can be set according to actual requirement, screw travel error measuring means uses grating scale, encoder ratio mode, ball-screw journey error situation of change when measuring load test, slide block is provided with vibration detecting unit, for monitoring slide block state, slider wear and pretightning force situation of change can be reacted, system uses driven by servomotor, the kinestate of performance element can be adjusted in real time, to meet simulation experiment.

Description

Leading screw, guide rail application system simulated condition laboratory table
Technical field
The present invention relates to a kind of simulated condition laboratory table, especially leading screw, guide rail application system simulated condition laboratory table.
Background technology
It is excellent that rolling linear guide and ball-screw have positioning precision height, little, stable movement, the transmission efficiency height of frictional force etc. Point, is widely used on numerical control device, has become as the critical component of accurate digital control equipment.Machine Tool design person can by leading screw or The independent sample of guide rail, handbook select satisfactory product, but the effect that can reach time the most actually used after being assemblied together Fruit cannot obtain, and these affect the key of product design success or not exactly.
Test currently for functional part is individually analyzed in the majority with evaluation system, it is impossible to the application of effectively simulation reality is System, is particularly particularly short of in terms of simulation loading power.The blank of this respect has been filled up in the exploitation of this device, can be easily and effectively The stressing conditions of simulation actual condition, but also the actual working state of critical component can be monitored in real time, for Machine Tool design person Selected components provides basic data.
Summary of the invention
In order to solve the deficiencies in the prior art, the invention provides a kind of leading screw, the experiment of guide rail application system simulated condition Platform, can the stressing conditions of simulation actual condition easily and effectively, but also the real work shape of critical component can be monitored in real time State, provides basic data for Machine Tool design person's selected components.
The present invention adopts the following technical scheme that
Leading screw, guide rail application system simulated condition laboratory table, including lathe bed, the guide rail of parallel arranged, leading screw, driving leading screw The servomotor rotated, guide rail is arranged on lathe bed by clamp body, it is characterised in that also include that supporting plate, supporting plate add load hydraulic The axially loaded hydraulic system of system, leading screw;
Described supporting plate is arranged on guide rail, and supporting plate connects leading screw, driven by servomotor screw turns, and leading screw drives supporting plate edge Guide rail moves back and forth;
Described supporting plate loads hydraulic system and is connected to supporting plate top by loading gripper shoe, and supporting plate loads hydraulic system and will add Load power is delivered on supporting plate, and loading force is delivered on guide rail by supporting plate;
The axially loaded hydraulic system of described leading screw is connected to supporting plate side by positioning seat, the axially loaded hydraulic system of leading screw Being delivered on supporting plate by loading force, loading force is delivered on leading screw by supporting plate.
Further, being provided with the supporting guide of parallel arranged inside described guide rail, supporting guide is arranged on lathe bed, supports Portal frame is installed on guide rail;
Described supporting plate loads hydraulic system and is arranged on portal frame, and portal frame is connected with supporting plate by vacuum line.
Further, being provided with nut seat bottom described supporting plate, nut seat is provided with quick change nut, quick change nut sleeve is connected on On leading screw.
Further, leading screw, guide rail application system simulated condition laboratory table also include that monitoring system, monitoring system include using Load the pressure transducer of hydraulic system loading force size in detection supporting plate, be used for detecting the applying of leading screw axially loaded hydraulic system The pulling force sensor of axial force size, export the torque sensor to leading screw torsional forces size, be used for for detecting servomotor The grating scale of detection screw travel error and encoder.
Further, described pressure transducer is arranged on supporting plate and loads hydraulic system and load between gripper shoe, and pressure passes Sensor is connected with loading gripper shoe by connecting plate.
Further, described pulling force sensor is arranged on leading screw axially loaded hydraulic system end, and pulling force sensor passes through Positioning seat is connected with supporting plate.
Further, described torque sensor is arranged between servomotor and leading screw, and torque sensor passes through shaft coupling I Being connected with servomotor, torque sensor is connected with leading screw by shaft coupling II.
Further, described lathe bed being provided with by support I main scale of grating scale, the read head of grating scale passes through support II is fixed on the bottom surface of supporting plate, and the read head of grating scale can move reciprocatingly along with supporting plate, and grating scale is for detecting supporting plate Straight-line displacement;
The swing offset of described leading screw is recorded by encoder, and encoder is arranged on encoder seat, and encoder seat is installed On lathe bed, encoder is connected with leading screw by shaft coupling III simultaneously;
Described grating scale and encoder measured data are transmitted separately to data processing unit and are analyzed calculating, it is thus achieved that leading screw Journey error data.
Further, equipped with slide block on described guide rail, each slide block being mounted on vibration monitoring device, vibration monitoring fills Putting for detecting slide block movement Vibration Condition, slide block movement Vibration Condition is used for characterizing slider wear situation.
Further, described monitoring system also includes multiple temperature detecting point, comprehensive detection leading screw, guide rail application system The ruuning situation of simulated condition laboratory table.
The Advantageous Effects using as above technical scheme to obtain is:
The present invention can simulate under different actual condition easily, tests guide rail and leading screw performance element, loads mould Intend device and use servo hydraulic system, multiple regular load and the simulation of inclined square, screw travel can be set according to actual requirement Error measuring means uses grating scale, encoder ratio mode, ball-screw journey error situation of change when measuring load test, Slide block is provided with vibration detecting unit, is used for monitoring slide block state, can react slider wear and pretightning force situation of change, and system is adopted By driven by servomotor, the kinestate of performance element can be adjusted in real time, to meet simulation experiment.
Accompanying drawing explanation
Fig. 1 is leading screw of the present invention, guide rail application system simulated condition laboratory table overall construction drawing.
Fig. 2 is guide rail loading system structure chart of the present invention.
Fig. 3 is leading screw loading system structure chart of the present invention.
Fig. 4 is screw drive system structure chart of the present invention.
Fig. 5 is screw travel error-detecting grating scale system construction drawing of the present invention.
Fig. 6 is screw travel error detection code device system construction drawing of the present invention.
In figure, 1, servomotor, 2, clamp body, 3, torque sensor, 4, guide rail, 5, supporting guide, 6, grating scale, 7, silk Thick stick, 8, supporting plate, 9, vacuum line, 10, load gripper shoe, 11, supporting plate load hydraulic system, 12, portal frame, 13, front and back support, 14, encoder, 15, front-end bearing pedestal, 16, the axially loaded hydraulic system of leading screw, 17, lathe bed, 18, rear bearing block, 19, positioning seat;
1a, motor cabinet, 3a, shaft coupling I, 3b, shaft coupling II, 6a, support I, 6b, support II, 10a, connecting plate, 11a, pressure Force transducer, 13a, bearing spider, 14a, shaft coupling III, 14b, encoder seat, 16a, pulling force sensor.
Detailed description of the invention
Detailed description of the invention in conjunction with 1 to 6 couple of present invention of accompanying drawing is described further:
Leading screw, guide rail simulated condition laboratory table mainly include that lathe bed 17, servomotor 1, guide rail 4, leading screw 7, supporting plate load The axially loaded hydraulic system of hydraulic system 11, leading screw 16.The axially loaded hydraulic system of leading screw 16 be arranged on front-end bearing pedestal 15 and after Between bearing block 18.Guide rail 4 is arranged on clamp body 2, and clamp body 2 can be replaced according to test products difference, and clamp body 2 is pacified Being contained on lathe bed 17, supporting plate 8 is arranged on guide rail 4, loads gripper shoe 10 and is arranged on supporting plate 8, and supporting plate loads hydraulic system 11 Being arranged on portal frame 12, portal frame 12 is installed above supporting guide 5, and supporting guide 5 is arranged on lathe bed 17, and portal frame 12 leads to Cross vacuum line 9 to be connected with supporting plate 8.
Servomotor 1 drives test ball-screw 7, and driving moment is recorded by torque sensor 3, ball-screw 7 and supporting plate 8 Being connected, and drive supporting plate 8 to move along test guide rail 4, supporting plate 8 drags portal frame 12 by vacuum line 9 and is synchronized with the movement, leading screw 7 are arranged in nut seat by quick change nut sleeve, and nut seat and supporting plate 8 are fixed by screw and be connected.
Supporting plate loads and arranges pressure transducer 11a between hydraulic system 11 and loading gripper shoe 10, is used for detecting loading system The loading force size of system, pressure transducer 11a is connected with loading gripper shoe 10 by connecting plate 10a, loads gripper shoe 10 and torr Plate 8 is fixed connection by screw, and the loading force that supporting plate loads hydraulic system 11 is delivered on supporting plate 8, thus realizes quilt Survey the loading of the power of guide rail 4.
Leading screw, guide rail application system simulated condition laboratory table also include that monitoring system, monitoring system include for detecting torr Plate loads the pressure transducer of hydraulic system loading force size, being used for detecting the axially loaded hydraulic system of leading screw, to apply axial force big Little pulling force sensor, export the torque sensor to leading screw torsional forces size, for detecting leading screw for detecting servomotor The grating scale of journey error and encoder.
Leading screw axially loaded hydraulic system 16 end is provided with pulling force sensor 16a, for detecting the axial force of applying, pulling force Sensor 16a is connected with supporting plate 8 by positioning seat 19, by supporting plate 8, loading force passes to leading screw 7, it is achieved the axle to leading screw To the loading of power.
Leading screw 7 is arranged between front and back support 13, and end is arranged on motor cabinet 1a equipped with bearing spider 13a, servomotor 1 On, it being provided with torque sensor 3 between servomotor 1 and leading screw 7, torque sensor 3 is electric with servo respectively by shaft coupling 3a, 3b Machine 1 and leading screw 7 connect, and export the size of the torsional forces to leading screw 7 for detecting servomotor 1.
Grating scale 6 main scale is arranged on lathe bed 17 by support I 6a, and grating scale 6 read head is fixed on by support II 6b On the bottom surface of supporting plate 8, and can move reciprocatingly along with supporting plate 8, the straight-line displacement of detection supporting plate 8, leading screw 7 swing offset is by compiling Code device 14 records;Encoder 14 is arranged on encoder seat 14b, and encoder seat 14b is arranged on lathe bed 17, encoder 14 simultaneously It is connected with leading screw 7 by shaft coupling III 14a, it is achieved leading screw swing offset detects;Measured data is transmitted separately to data and processes single Unit is analyzed calculating, it is thus achieved that leading screw forms error information.
Slider oscillation detector unit, each slide block of guide rail 4 is provided with vibration monitoring device, is used for detecting slide block movement and shakes Emotionally condition, is used for characterizing slider wear situation.
The temperature detecting unit of each key component, each revolute pair in leading screw, guide rail simulated condition laboratory table, moving sets and Joint is equipped with temperature detecting point, comprehensive test experience plant running situation, it is achieved abnormal conditions obtain in time.
Pressure transducer, pulling force sensor, torque sensor, grating scale, encoder, slider oscillation detector unit temperature are examined Survey unit and all connect computer by data processing unit, it is simple to obtain data in real time.
The present invention can simulate under different actual condition easily, tests guide rail 4 and leading screw 7 performance element, experiment Platform includes load and the torque analog in 3 directions of guide rail load carrier, i.e. leading screw axial load charger, screw travel Error real-time measurement apparatus, slider oscillation detection device.Load simulating device uses servo hydraulic system, i.e. supporting plate to add load hydraulic The axially loaded hydraulic system of system, leading screw, can arrange multiple regular load and the simulation of inclined square according to actual requirement.Leading screw row Journey error measuring means uses grating scale 6, encoder 14 ratio mode, and when measuring load test, ball-screw 7 journey error becomes Change situation.Slide block is provided with vibration detecting unit, is used for monitoring slide block state, can react slider wear and pretightning force change feelings Condition.System uses servomotor 1 to drive, and can adjust the kinestate of performance element in real time, to meet simulation experiment.Load gantry Frame 12 is arranged on a set of supporting guide 5, is connected with laboratory table supporting plate 8 by vacuum line 9, and can move therewith.By with Upper device realizes guide rail 4 and leading screw 7 application system simulation experiment.
Set after simulating a certain actual condition, first pass through digital control system numerical programming program, control servomotor 1 and drive Leading screw 7 drags whole system motion.Set supporting plate loading hydraulic system 11 and system is applied carrying parameter, and passed by pressure Setup parameter is checked by sensor 11a, and enters computer processing system and contrast, determine theoretical and actual be consistent after, if Fixed thread thick stick axially loaded hydraulic system 16 parameter, is in like manner checked system by pulling force sensor 16a.Slider oscillation is examined Surveying device to be installed on each slide block to be measured, temperature sensor is seated to each monitoring position.
Start laboratory table, gather grating scale 6 and detect data with encoder 14, the Error of leadscrew pitch in experimentation is entered Row is measured, and imports data handling system and is analyzed, thus Error of leadscrew pitch situation of change in obtaining whole experimental period.
Servosystem and servomotor use state-of-the-art system, can simulate the motion conditions of various complexity, meet various The needs of experiment.
Certainly, only presently preferred embodiments of the present invention described above, the present invention is not limited to enumerate above-described embodiment, should When explanation, any those of ordinary skill in the art under the guidance of this specification, made all equivalent substitute, bright Aobvious variant, within all falling within the essential scope of this specification, ought to be protected by the present invention.

Claims (10)

1. leading screw, guide rail application system simulated condition laboratory table, including lathe bed (17), the guide rail (4) of parallel arranged, leading screw (7), Driving the servomotor (1) that leading screw (7) rotates, guide rail (4) is arranged on lathe bed (17) by clamp body, it is characterised in that also Hydraulic system (11), the axially loaded hydraulic system of leading screw (16) is loaded including supporting plate (8), supporting plate;
Described supporting plate (8) is arranged on guide rail (4), and supporting plate (8) connects leading screw (7), and servomotor (1) drives leading screw (7) to rotate, Leading screw (7) drives supporting plate (8) to move back and forth along guide rail (4);
Described supporting plate loads hydraulic system (11) and is connected to supporting plate (8) top by loading gripper shoe (10), and supporting plate adds load hydraulic Loading force is delivered on supporting plate (8) by system (11), and loading force is delivered on guide rail (4) by supporting plate (8);
The axially loaded hydraulic system of described leading screw (16) is connected to supporting plate (8) side by positioning seat (19), and leading screw is axially loaded Loading force is delivered on supporting plate (8) by hydraulic system (16), and loading force is delivered on leading screw (7) by supporting plate (8).
Leading screw the most according to claim 1, guide rail application system simulated condition laboratory table, it is characterised in that described guide rail (4) inner side is provided with the supporting guide (5) of parallel arranged, and supporting guide (5) is arranged on lathe bed (17), the upper peace of supporting guide (5) Equipped with portal frame (12);
Described supporting plate loads hydraulic system (11) and is arranged on portal frame (12), and portal frame (12) is by vacuum line (9) and torr Plate (8) connects.
Leading screw the most according to claim 1, guide rail application system simulated condition laboratory table, it is characterised in that described supporting plate (8) bottom is provided with nut seat, and nut seat is provided with quick change nut, and quick change nut sleeve is connected on leading screw (7).
Leading screw the most according to claim 2, guide rail application system simulated condition laboratory table, it is characterised in that also include prison Examining system, monitoring system includes loading the pressure transducer (11a) of hydraulic system (11) loading force size for detecting supporting plate, using Apply the pulling force sensor (16a) of axial force size in the detection axially loaded hydraulic system of leading screw (16), be used for detecting servo electricity Machine (1) exports to the torque sensor (3) of leading screw (7) torsional forces size, is used for detecting the grating scale of leading screw (7) journey error And encoder (14) (6).
Leading screw the most according to claim 4, guide rail application system simulated condition laboratory table, it is characterised in that described pressure Sensor (11a) is arranged on supporting plate and loads hydraulic system (11) and load between gripper shoe (10), and pressure transducer (11a) passes through Connecting plate (10a) is connected with loading gripper shoe (10).
Leading screw the most according to claim 4, guide rail application system simulated condition laboratory table, it is characterised in that described pulling force Sensor (16a) is arranged on leading screw axially loaded hydraulic system (16) end, pulling force sensor (16a) by positioning seat (19) with Supporting plate (8) connects.
Leading screw the most according to claim 4, guide rail application system simulated condition laboratory table, it is characterised in that described moment of torsion Sensor (3) is arranged between servomotor (1) and leading screw (7), and torque sensor (3) is by shaft coupling I (3a) and servo electricity Machine (1) connects, and torque sensor (3) is connected with leading screw (7) by shaft coupling II (3b), and torque sensor (3) is watched for detection Take motor (1) output to the torsional forces size of leading screw (7).
Leading screw the most according to claim 4, guide rail application system simulated condition laboratory table, it is characterised in that described lathe bed (17) installed the main scale of grating scale (6) on by support I (6a), the read head of grating scale (6) is fixed on by support II (6b) On the bottom surface of supporting plate (8), the read head of grating scale (6) can move reciprocatingly along with supporting plate (8), and grating scale (6) is used for detecting torr The straight-line displacement of plate (8);
The swing offset of described leading screw (7) is recorded by encoder (14), and encoder (14) is arranged on encoder seat (14b), Encoder seat (14b) is arranged on lathe bed (17), and encoder (14) is connected with leading screw (7) by shaft coupling III (14a) simultaneously;
Described grating scale (6) and encoder (14) measured data are transmitted separately to data processing unit and are analyzed calculating, it is thus achieved that Leading screw (7) journey error data.
Leading screw the most according to claim 4, guide rail application system simulated condition laboratory table, it is characterised in that described guide rail (4) equipped with slide block on, each slide block being mounted on vibration monitoring device, vibration monitoring device is used for detecting slide block movement vibration Situation, slide block movement Vibration Condition is used for characterizing slider wear situation.
10., according to the leading screw described in claim 4 to 9 Arbitrary Term, guide rail application system simulated condition laboratory table, its feature exists In, described monitoring system also includes multiple temperature detecting point, comprehensive detection leading screw (7), guide rail (4) application system simulated condition The ruuning situation of laboratory table.
CN201610835384.8A 2016-09-20 2016-09-20 Leading screw, guide rail application system simulated condition laboratory table CN106289768A (en)

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Cited By (4)

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Publication number Priority date Publication date Assignee Title
CN109425303A (en) * 2017-08-30 2019-03-05 南京雄豹精密机械有限公司 A kind of ball-screw stress axial deformation detection system
CN109443767A (en) * 2018-10-25 2019-03-08 广东科杰机械自动化有限公司 A kind of measurement method of ball screw assembly, dynamic vibration
CN109540010A (en) * 2018-11-02 2019-03-29 北京卫星制造厂有限公司 A kind of high-precision ultrahigh pressure liquid phase simulation load accumulated error test platform
CN109773588A (en) * 2019-03-01 2019-05-21 山东大学 A kind of twin model performance test method of lathe number and device

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CN109425303A (en) * 2017-08-30 2019-03-05 南京雄豹精密机械有限公司 A kind of ball-screw stress axial deformation detection system
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CN109540010A (en) * 2018-11-02 2019-03-29 北京卫星制造厂有限公司 A kind of high-precision ultrahigh pressure liquid phase simulation load accumulated error test platform
CN109773588A (en) * 2019-03-01 2019-05-21 山东大学 A kind of twin model performance test method of lathe number and device
CN109773588B (en) * 2019-03-01 2021-03-02 山东大学 Method and device for testing performance of digital twin model of machine tool

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