CN109696286A - A kind of high-speed electric main shaft dynamically load vibration measurement device - Google Patents
A kind of high-speed electric main shaft dynamically load vibration measurement device Download PDFInfo
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- CN109696286A CN109696286A CN201910186493.5A CN201910186493A CN109696286A CN 109696286 A CN109696286 A CN 109696286A CN 201910186493 A CN201910186493 A CN 201910186493A CN 109696286 A CN109696286 A CN 109696286A
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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
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
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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
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/025—Measuring arrangements
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
A kind of high-speed electric main shaft dynamically load vibration measurement device belongs to electro spindle performance measurement field.Experimental bench is connect with mobile platform, main shaft fixture is installed on mobile platform, tested main shaft is installed on main shaft fixture, tested main shaft is connect by connecting shaft B with shaft coupling, two vibration acceleration sensors are installed on tested main shaft bearing position, temperature testing organization, speed detecting mechanism, two vibration acceleration sensors, temperature testing organization, speed detecting mechanism is electrically connected with PC control mechanism, shaft coupling is connect with connecting shaft A, connecting shaft A right end is connect with magnetic powder brake in tangential force mechanisms, magnetic powder brake is mounted on above radial force mechanisms, axial force mechanism is installed on the right side of magnetic powder brake, simulate external force suffered when work, it solves existing experimental bench to be difficult to simulate true stress condition, radial force, pressure sensor is installed on axial force top plate, measured signal is transmitted back to PC control mechanism, form closed-loop control, this Invention is for measuring electro spindle vibration performance.
Description
Technical field
The present invention relates to a kind of high-speed electric main shaft dynamically load vibration measurement devices, belong to high-speed electric main shaft performance measurement neck
Domain.
Background technique
High-speed electric main shaft is widely used in field of machining, applied to the processing of various components, improves existing add
Work precision and processing efficiency.But it in order to guarantee the precision and its stability of high-speed electric main shaft, needs to carry out high-speed electric main shaft
Working condition experimenting simulation, measures its vibration performance, is used to improve and optimize high-speed electric main shaft structure and parameter later.
Vibration-testing is sensor to be embedded on electric mainshaft bearing seat, such as vibrating sensor, displacement pass under normal circumstances
Sensor etc., to test the vibration characteristics of electro spindle.In the test process of high-speed rotary main shaft dynamic characteristic, how to main shaft
It is loaded, is the largest difficult point.For existing electro spindle loading experiment platform mostly based on zero load, minority can apply radial force, axial direction
Power and tangential force, but the cantilever position with cutter when electro spindle works cannot be simulated, the power size of application is not accurate enough, causes
It is not accurate enough to test obtained data.Therefore, now need it is a kind of can accurate simulation real working condition, improve the accurate of applied force
Degree improves measurement accuracy, reduces the loading experiment platform of error to measure electro spindle vibration performance.
Summary of the invention
The object of the present invention is to provide a kind of high-speed electric main shaft dynamically load vibration measurement device, vibration acceleration sensors
Front end has magnet, can be adsorbed on main shaft, and the real working condition, raising when experimental bench used can simulate electro spindle work are applied
The precision of reinforcing improves measurement accuracy, reduces error to measure electro spindle vibration performance, which has
Easy for installation, the advantages that measurement accuracy is high, strong antijamming capability.
The purpose of the present invention is what is be achieved through the following technical solutions:
1. a kind of high-speed electric main shaft dynamically load vibration measurement device, it is characterised in that: install mobile platform, institute on the left of experimental bench
Main shaft fixture is installed on the mobile platform stated, tested main shaft, the tested front-end of spindle axis are installed on the main shaft fixture
It holds position and two vibration acceleration sensors is installed, the tested main shaft is connect by broaching tool with connecting shaft B, described
Connecting shaft B is connect with shaft coupling, and the shaft coupling is connect with connecting shaft A, installs tachometer disk on the connecting shaft A, described
Connecting shaft A on the right side of connect with magnetic powder brake in tangential force mechanisms, the in-house installation radial direction force mechanisms of the tangential force,
The right side of the tangential force mechanisms is installed by axial force mechanism.
2. a kind of high-speed electric main shaft dynamically load vibration measurement device, it is characterised in that: the vibration acceleration sensing
Device angle in 90 ° is mounted at tested front-end of spindle bearing, and the vibration acceleration sensor is electrically connected with signal conditioner, institute
The signal conditioner stated is electrically connected with data acquisition card, and the data acquisition card is electrically connected with PC control mechanism.
3. mounting bracket on mobile platform described in, the bracket upper mounting rail install sliding block on the guide rail,
Servo motor is installed in left end on the bracket, and the servo motor is connect by shaft coupling with lead screw, on the lead screw
Installation bearing is fixed in bearing block, and the bearing block installs bearing cover fixing bearing, installs silk on the lead screw
Thick stick nut, the feed screw nut are fixed by bolts on ground plate, and the ground plate is mounted on sliding block.
4. temperature-detecting device, infrared temperature sensor pair in the temperature-detecting device are installed on the experimental bench described in
The tested front-end of spindle position of bearings of standard.
Installation speed testing agency on experimental bench described in 5., speed probe and revolving speed in the speed detecting mechanism
Disk is with the use of the measurement speed of mainshaft.
6. the beneficial effects of the present invention are: the present invention is intended to provide a kind of high-speed electric main shaft dynamically load vibration measurement fills
It sets, working principle of the present invention, mobile platform can realize side-to-side movement, and when beginning, mobile platform is moved to left position, concedes electricity
Tested main shaft is installed on main shaft fixture by main shaft installation site, by the comprehensive function of system and sensor, automatically with dock
Axis B docking adjusts tested main shaft, abutment shaft B, docking after the power supply, Inlet and outlet water and compressed gas mouth for connecting tested main shaft
The concentricity of axis A, magnetic powder brake and axial force mechanism, by coaxiality error control in the range of allowance, adjustment temperature inspection
Mechanism position is surveyed, so that infrared temperature sensor is directed at electro spindle front end position of bearings, tangential force is by the magnetic powder in tangential force mechanisms
Brake provides, and radial force acts on magnetic powder brake fixture by radial force plate by the hydraulic cylinder in radial force mechanisms and above mentions
For axial force is acted on magnetic powder brake by axial force collar by the axial force hydraulic cylinder in axial force mechanism and provided, diameter
It is fitted with pressure sensor to power plate and axial force collar surface, feeds back to system at any time, closed-loop control is carried out, entire
During vibration experiment, as all data such as radial force, axial force, tangential force, vibration, temperature, revolving speed, time are all deposited automatically
Storage, for abnormal conditions, system can signal an alert；The configuration of the present invention is simple, can by adjusting the length of abutment shaft B,
Carry out real simulation and be tested the length for installing different cutters when main shaft work, can be realized and simulate what tested main shaft worked with cutter
The power size of cantilever position, application is accurate, and two vibration acceleration sensor angles in 90 ° are mounted on tested main shaft bearing leading portion
Position keeps testing result more accurate, and temperature sensor and speed probe do not contact with tested electro spindle, improves its measurement
Precision, reduce the error of measurement, keep experimental data more accurate, be the improvement of later electric main shaft structure and parameter and excellent
Change and strong foundation is provided.
Detailed description of the invention
Fig. 1 is the structure chart of dynamically load vibration measurement device experimental bench of the present invention；
Fig. 2 is the structure chart of spindle vibration measuring device of the present invention；
Fig. 3 is the structure chart of mobile platform of the present invention；
Parts title and label in attached drawing is as follows:
1, experimental bench, 2, mobile platform, 3, main shaft fixture, 4, tested main shaft, 5, temperature testing organization, 6, shaft coupling, 7, revolving speed
Disk, 8, connecting shaft A, 9, tangential force mechanisms, 10, axial force mechanism, 11, PC control mechanism, 12, radial force mechanisms, 13, connecting shaft
B, 14, vibration acceleration sensor, 15, speed detecting mechanism, 16, signal conditioner, 17, data acquisition card, 201, servo electricity
Machine, 202, bracket, 203, guide rail, 204, bearing block, 205, lead screw, 206, plate, 207, bearing cover, 208, sliding block.
Specific embodiment
A specific embodiment of the invention is further described with reference to the accompanying drawing:
As shown in Figure 1, a kind of high-speed electric main shaft dynamically load vibration measurement device, it is characterised in that: installation on the left of experimental bench (1)
Mobile platform (2) installs main shaft fixture (3) on the mobile platform (2), the tested master of installation on the main shaft fixture (3)
Two vibration acceleration sensors (14), the tested master are installed in axis (4), tested main shaft (4) the front end position of bearings
Axis (4) is connect by broaching tool with connecting shaft B(13), the connecting shaft B(13) it is connect with shaft coupling (6), the connection
Axis device (6) is connect with connecting shaft A(8), the connecting shaft A(8) on install tachometer disk (7), the connecting shaft A(8) right side
It is connect with magnetic powder brake in tangential force mechanisms (9), radial force mechanisms (12), institute is installed inside the tangential force mechanisms (9)
The right side for the tangential force mechanisms (9) stated is installed by axial force mechanism (10).
As shown in Fig. 2, a kind of high-speed electric main shaft dynamically load vibration measurement device, it is characterised in that: the vibration adds
Velocity sensor (14) angle in 90 ° is mounted at tested front-end of spindle bearing, the vibration acceleration sensor (14) with
Signal conditioner (16) is electrically connected, and the signal conditioner (16) is electrically connected with data acquisition card (17), the data acquisition card
(17) it is electrically connected with PC control mechanism (11).
As shown in figure 3, a kind of high-speed electric main shaft dynamically load vibration measurement device, it is characterised in that: the movement is flat
Mounting bracket (202) on platform (2), the bracket (202) upper mounting rail (203), the guide rail install sliding block on (203)
(208), on the bracket (202) left end installation servo motor (201), the servo motor (201) by shaft coupling with
Lead screw (205) connects, and installation bearing is fixed in bearing block (204) on the lead screw (205), the bearing block (204)
Bearing cover (207) fixing bearing is installed, feed screw nut, the feed screw nut spiral shell are installed on the lead screw (205)
Bolt is fixed on ground plate (206), and the ground plate (206) is mounted on sliding block (208).
As shown in Figure 1, a kind of high-speed electric main shaft dynamically load vibration measurement device, it is characterised in that: the experimental bench
(1) temperature-detecting device (5) are installed on, infrared temperature sensor is directed at tested main shaft (4) in the temperature-detecting device (5)
Front end position of bearings.
As shown in Figure 1, a kind of high-speed electric main shaft dynamically load vibration measurement device, it is characterised in that: the experimental bench
(1) installation speed testing agency (15) on, speed probe makes with tachometer disk (7) cooperation in the speed detecting mechanism (15)
With the measurement speed of mainshaft.
The above is only basic structure of the invention, working principle and advantage, not does any technology to the present invention
It limits, is not departing from the technology of the present invention to any modification, equivalent variations and modification made by embodiment, still falling within skill of the present invention
In art aspects.
Claims (5)
1. a kind of high-speed electric main shaft dynamically load vibration measurement device, it is characterised in that: install mobile platform on the left of experimental bench (1)
(2), main shaft fixture (3) are installed on the mobile platform (2), tested main shaft (4), institute is installed on the main shaft fixture (3)
Two vibration acceleration sensors (14) are installed in tested main shaft (4) the front end position of bearings stated, and the tested main shaft (4) passes through
Broaching tool is connect with connecting shaft B(13), the connecting shaft B(13) connect with shaft coupling (6), the shaft coupling (6) with
Connecting shaft A(8) connection, the connecting shaft A(8) on install tachometer disk (7), the connecting shaft A(8) right side with tangential force machine
Magnetic powder brake connects in structure (9), and radial force mechanisms (12), the tangential force are installed inside the tangential force mechanisms (9)
The right side of mechanism (9) is installed by axial force mechanism (10).
2. a kind of high-speed electric main shaft dynamically load vibration measurement device, it is characterised in that: two vibration accelerations sensing
Device (14) angle in 90 ° is mounted at tested front-end of spindle bearing, the vibration acceleration sensor (14) and signal condition
Device (16) is electrically connected, and the signal conditioner (16) is electrically connected with data acquisition card (17), the data acquisition card (17) and PC
Control mechanism (11) is electrically connected.
3. a kind of high-speed electric main shaft dynamically load vibration measurement device according to claim 1, it is characterised in that: described
Mounting bracket (202) on mobile platform (2), the bracket (202) upper mounting rail (203), the guide rail are pacified on (203)
It fills sliding block (208), left end installation servo motor (201), the servo motor (201) pass through connection on the bracket (202)
Axis device is connect with lead screw (205), and bearing is installed on the lead screw (205) and is fixed in bearing block (204), the bearing block
(204) bearing cover (207) fixing bearing is installed, feed screw nut, the feed screw nut are installed on the lead screw (205)
It is fixed by bolts on ground plate (206), the ground plate (206) is mounted on sliding block (208).
4. a kind of high-speed electric main shaft dynamically load vibration measurement device according to claim 1, it is characterised in that: described
Temperature-detecting device (5) are installed on experimental bench (1), infrared temperature sensor alignment is tested in the temperature-detecting device (5)
Main shaft (4) front end position of bearings.
5. a kind of high-speed electric main shaft dynamically load vibration measurement device according to claim 1, it is characterised in that: described
Installation speed testing agency (15) on experimental bench (1), speed probe and tachometer disk (7) in the speed detecting mechanism (15)
With the use of the measurement speed of mainshaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910186493.5A CN109696286A (en) | 2019-03-13 | 2019-03-13 | A kind of high-speed electric main shaft dynamically load vibration measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910186493.5A CN109696286A (en) | 2019-03-13 | 2019-03-13 | A kind of high-speed electric main shaft dynamically load vibration measurement device |
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| Publication Number | Publication Date |
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| CN109696286A true CN109696286A (en) | 2019-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910186493.5A Pending CN109696286A (en) | 2019-03-13 | 2019-03-13 | A kind of high-speed electric main shaft dynamically load vibration measurement device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112051041A (en) * | 2020-08-03 | 2020-12-08 | 人本股份有限公司 | Rotating shaft compressive strength detection device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS541674A (en) * | 1977-06-06 | 1979-01-08 | Ricoh Co Ltd | Inertia vibration type measuring machine for couping force |
| CN101696901A (en) * | 2009-10-29 | 2010-04-21 | 上海第二工业大学 | System and method for testing and analyzing automobile vibration |
| CN202562760U (en) * | 2012-05-02 | 2012-11-28 | 中国神华能源股份有限公司 | Vibrating screen on-line diagnosis device |
| CN103335703A (en) * | 2013-06-26 | 2013-10-02 | 国家电网公司 | Transformer vibration performance on-line monitoring system based on DSP (digital signal processor) |
| CN105067234A (en) * | 2015-07-17 | 2015-11-18 | 安阳工学院 | High speed electric main shaft comprehensive experiment platform and experiment method |
| CN207487971U (en) * | 2017-12-07 | 2018-06-12 | 北京信息科技大学 | A kind of electro spindle-bearing characteristics experimental rig |
| CN109100135A (en) * | 2018-09-21 | 2018-12-28 | 哈尔滨理工大学 | A kind of testboard measuring high-speed electric main shaft comprehensive performance |
-
2019
- 2019-03-13 CN CN201910186493.5A patent/CN109696286A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS541674A (en) * | 1977-06-06 | 1979-01-08 | Ricoh Co Ltd | Inertia vibration type measuring machine for couping force |
| CN101696901A (en) * | 2009-10-29 | 2010-04-21 | 上海第二工业大学 | System and method for testing and analyzing automobile vibration |
| CN202562760U (en) * | 2012-05-02 | 2012-11-28 | 中国神华能源股份有限公司 | Vibrating screen on-line diagnosis device |
| CN103335703A (en) * | 2013-06-26 | 2013-10-02 | 国家电网公司 | Transformer vibration performance on-line monitoring system based on DSP (digital signal processor) |
| CN105067234A (en) * | 2015-07-17 | 2015-11-18 | 安阳工学院 | High speed electric main shaft comprehensive experiment platform and experiment method |
| CN207487971U (en) * | 2017-12-07 | 2018-06-12 | 北京信息科技大学 | A kind of electro spindle-bearing characteristics experimental rig |
| CN109100135A (en) * | 2018-09-21 | 2018-12-28 | 哈尔滨理工大学 | A kind of testboard measuring high-speed electric main shaft comprehensive performance |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112051041A (en) * | 2020-08-03 | 2020-12-08 | 人本股份有限公司 | Rotating shaft compressive strength detection device |
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Application publication date: 20190430 |