CN102248485A - Clearance magnetic adsorption type two-dimensional grinding force test system - Google Patents
Clearance magnetic adsorption type two-dimensional grinding force test system Download PDFInfo
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- CN102248485A CN102248485A CN2011100236129A CN201110023612A CN102248485A CN 102248485 A CN102248485 A CN 102248485A CN 2011100236129 A CN2011100236129 A CN 2011100236129A CN 201110023612 A CN201110023612 A CN 201110023612A CN 102248485 A CN102248485 A CN 102248485A
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Abstract
The invention provides a clearance magnetic adsorption type two-dimensional grinding force test system, relating to an experimental facility for testing a grinding force in a machining process. The test system comprises a traction device, a magnetic-conducting rail platform, a lifting processing device, a magnetic adsorption moving mechanism and a data acquisition system. The traditional grinding force measuring equipment is usually realized by adopting a grinding machine and a two-dimensional or multi-dimensional force testing sensor, the experimental facility is complex and cost is high. The clearance magnetic adsorption type two-dimensional grinding force test system provided by the invention can be used for carrying out grinding and data acquisition and processing simultaneously, has the advantages of compact structure, small volume, convenience for dismounting and regulating and lower cost, and is applicable to a grinding force testing experiment.
Description
Technical field
The present invention relates to the test macro of grinding force in a kind of mechanical processing process, belong to the power field of measuring technique.
Background technology
In order to design grinding equipment, especially the grinding robot needs to understand grinding force (normal pressure and the tangential force) scope under different removing materials, different emery wheel and the different technical parameters.The grinding force measurement device adopts traditional grinding machine and two dimension or multidimensional force cell to realize experimental facilities complexity, cost costliness usually.
Can be used for device (open as Chinese invention patent: CN101524818, CN101526406 and the CN101131335) force cells that adopt that power is measured in the prior art in a large number more, there is no suitable grinding attachment, can not be directly used in grinding force measures, can only be used with large-scale grinding machine, also need the suitable auxiliary mould of otherwise designed, it is loaded down with trivial details to work, and experimental cost is higher.
Summary of the invention
The objective of the invention is in order to solve the problem of existing grinding force testing equipment complex structure, cost costliness, a kind of gap magnetic adsorption type two dimension grinding force test macro is provided, can be used for grinding and data acquisition and processing simultaneously, compact conformation, volume are little, and cost is lower.
The present invention adopts following technical scheme:
Gap of the present invention magnetic adsorption type two dimension grinding force test macro is characterized in that: comprise draw-gear, magnetic conduction track platform, lifting processing unit (plant), magnetic adsorption type travel mechanism and data collecting system;
Described draw-gear comprises traction electric machine, traction wheel and pull rope;
Described data collecting system comprises that at least three are measured stressed power sensor, power sensor, capture card and the computer that the measured X direction is stressed of Z direction;
Magnetic absorbing unit and universal ball are contained in described magnetic adsorption type travel mechanism, and magnetic absorbing unit comprises yoke and magnet, and yoke and magnet are formed magnetic circuit; Magnetic absorbing unit by universal ball along the orbital motion on the track platform; Leave the gap between magnetic absorbing unit and the magnetic conduction platform;
Measure the stressed power sensor of Z direction and be installed in lifting processing unit (plant) bottom, and affixed with magnetic absorbing unit;
The stressed power sensor of measured X direction is fixed on the lifting processing unit (plant), and is connected with pull rope one end, the parallel track on pull rope and the magnetic conduction track platform; The other end of pull rope is fixed on the circumference of traction wheel, and traction wheel links to each other with the output shaft of motor;
Described lifting processing unit (plant) comprises frame, emery wheel, emery wheel elevating mechanism, vertically-guided device, horizontally-guided device, terminal slide block and grinding motor; The output shaft of grinding motor links to each other with emery wheel by transmission mechanism, and emery wheel is installed on the described terminal slide block; Described emery wheel elevating mechanism comprises a lifting linking member group, and lifting linking member group one end and terminal slide block are hinged, and the other end and horizontally-guided device are hinged; Described horizontally-guided device comprises horizontally-guided motor, leading screw, be arranged on first nut block on the leading screw and second nut block, horizontally-guided spare, first moves horizontally piece and second and moves horizontally piece; Described first moves horizontally the end that piece and second moves horizontally piece is connected with horizontally-guided spare respectively, and the other end is connected with second nut block with described first nut block, and first nut block is opposite with the second nut block rotation direction; Described vertically-guided device comprises a vertically-guided spare at least, and vertically-guided spare is fixed on the frame; Described terminal slide block slides up and down along vertically-guided spare.
Gap of the present invention magnetic adsorption type two dimension grinding force test macro is characterized in that: three magnetic absorbing units and three universal balls are contained in described magnetic adsorption type travel mechanism; Each magnetic absorbing unit passes through a universal ball along the orbital motion on the track platform; Three universal balls are equilateral triangle to be arranged, and intersects vertically through the normal and the pull rope direction at equilateral triangle center.
Gap of the present invention magnetic adsorption type two dimension grinding force test macro, it is characterized in that: described draw-gear also contains transmission mechanism, and the power shaft of this transmission mechanism links to each other with the output shaft of traction electric machine, and output shaft links to each other with traction wheel; Described transmission mechanism adopts gear drive, turbine and worm transmission, belt gear or chain drive.
Gap of the present invention magnetic adsorption type two dimension grinding force test macro, it is characterized in that: described lifting linking member group adopts the X-shaped connecting rod, the X-shaped connecting rod comprises two rod members that are hinged to X-shaped, one end of two rod members is fixedlyed connected with terminal slide block respectively, the other end of two rod members respectively with the horizontally-guided device in first move horizontally piece and second to move horizontally piece hinged.
Gap of the present invention magnetic adsorption type two dimension grinding force test macro, it is characterized in that: described lifting linking member group adopts the V-arrangement connecting rod, the V-arrangement connecting rod comprises the rod member of two hinged forming V-shapes, the end of two rod members is fixedlyed connected with terminal slide block, the other end of two rod members respectively with the horizontally-guided device in first move horizontally piece and second to move horizontally piece hinged.
Gap of the present invention magnetic adsorption type two dimension grinding force test macro, it is characterized in that: described lifting linking member group adopts X+V shape connecting rod, X+V shape connecting rod comprises that two are hinged to the rod member of X-shaped and the rod member of two hinged forming V-shapes, in the upper end of rod member and the horizontally-guided device to move horizontally piece hinged, the lower end of rod member is connected with terminal slide block; The rod member of X-shaped is on the rod member of V-arrangement or below the rod member of V-arrangement.
Gap of the present invention magnetic adsorption type two dimension grinding force test macro, it is characterized in that: described power sensor comprises resistance-type and piezoelectric type one dimension or two-dimentional force cell.
The present invention compared with prior art has the following advantages and the high-lighting effect:
This invention not only can be carried out grinding and data acquisition and processing simultaneously, and compact conformation, volume are little, are convenient to installing/dismounting and adjustment, with low cost, is fit to very much grinding dynamometry examination experiment; Be generalized to simultaneously other application easily, as milling, cutting dynamometry etc.
Description of drawings
Fig. 1 is a gap provided by the invention magnetic adsorption type two dimension grinding force test macro example structure principle schematic.
Fig. 2 is the side view of Fig. 1.
Fig. 3 is the magnetic adsorption type travel mechanism structural representation that present embodiment provides.
Fig. 4 is the magnetic adsorption type travel mechanism and the scheme of installation of Z direction power sensor on the lifting processing unit (plant) of present embodiment.
Fig. 5 is that the emery wheel of present embodiment is installed in the schematic diagram on the terminal slide block.
In Fig. 1 to Fig. 3:
The 1-draw-gear, 2-magnetic conduction track platform, 3-lifting processing unit (plant), 4-magnetic adsorption type travel mechanism,
The 5-data collecting system, the 11-traction electric machine, the 12-traction wheel, the 13-pull rope,
The 14-turbine and worm, the 15-towing bracket, the 31-frame, the 32-emery wheel,
33-emery wheel elevating mechanism, 331-lifting linking member group, 34-vertically-guided device, 341-vertically-guided spare,
35-horizontally-guided device, the 351-leading screw, 352a-first nut block, 352b-second nut block,
353-horizontally-guided spare, 354a-first moves horizontally piece, and 354b-second moves horizontally piece,
The terminal slide block of 36-, 361-emery wheel first semiaxis, 362-emery wheel second semiaxis, the 37-grinding motor,
38-horizontally-guided motor, the 41-magnetic absorbing unit, the 411-yoke, the 412-magnet,
The universal ball of 42-, 51-power sensor, the 52-capture card, the 53-computer,
The 54-adjusting bracket, the 6-work piece holder.
The specific embodiment
Be described in further detail concrete structure of the present invention and operation principle below in conjunction with drawings and Examples.
Fig. 1, the 2nd, magnetic adsorption type two dimension grinding force test macro example structure principle schematic provided by the invention comprises draw-gear 1, magnetic conduction track platform 2, lifting processing unit (plant) 3, magnetic adsorption type travel mechanism 4 and data collecting system 5.
In the magnetic adsorption type two dimension grinding force test macro of gap of the present invention, draw-gear comprises traction electric machine 11, traction wheel 12 and pull rope 13; Draw-gear also contains transmission mechanism in the present embodiment, and the power shaft of this transmission mechanism links to each other with the output shaft of motor, and output shaft links to each other with traction wheel; Described transmission mechanism can adopt gear drive, turbine and worm transmission, belt gear or chain drive, adopts turbine and worm 14 transmissions in the present embodiment.
In the gap of the present invention magnetic adsorption type two dimension grinding force test macro, data collecting system comprises that three are measured the stressed power sensor of Z direction 51, the power sensor that the measured X direction is stressed, capture card 52 and a computer 53.
Fig. 3 is the magnetic adsorption type travel mechanism structural representation that present embodiment provides.Magnetic adsorption type travel mechanism comprises three magnetic absorbing units 41 and three universal balls 42, and magnetic absorbing unit comprises yoke 411 and magnet 412, and yoke and magnet are formed magnetic circuit; Each magnetic absorbing unit passes through a universal ball along the orbital motion on the track platform; Gapped between magnetic absorbing unit and the magnetic conduction platform; Three universal balls are equilateral triangle to be arranged, and intersects vertically through the normal and the pull rope direction at equilateral triangle center.
Fig. 4 is the magnetic adsorption type travel mechanism and the scheme of installation of three Z direction power sensors on the lifting processing unit (plant) of present embodiment, measures the stressed power sensor of Z direction and is installed in lifting processing unit (plant) bottom, and affixed with magnetic absorbing unit.
In the magnetic adsorption type two dimension grinding force test macro of gap of the present invention, the stressed power sensor of measured X direction is fixed on the lifting processing unit (plant), and is connected with pull rope one end, the parallel track on pull rope and the magnetic conduction track platform; The other end of pull rope is fixed on the circumference of traction wheel, and traction wheel links to each other with the output shaft of traction electric machine.
In the magnetic adsorption type two dimension grinding force test macro of gap of the present invention, the lifting processing unit (plant) comprises frame 31, emery wheel 32, emery wheel elevating mechanism 33, vertically-guided device 34, horizontally-guided device 35, terminal slide block 36 and grinding motor 37; The output shaft of grinding motor links to each other with emery wheel by transmission mechanism, and emery wheel is installed on the described terminal slide block; Described emery wheel elevating mechanism comprises a lifting linking member group 331, and lifting linking member group one end and terminal slide block are hinged, and the other end and horizontally-guided device are hinged; Described horizontally-guided device comprises horizontally-guided motor 38, leading screw 351, be arranged on the first nut block 352a on the leading screw and the second nut block 352b, horizontally-guided spare 353, first moves horizontally piece 354a and second and moves horizontally piece 354b; Described first moves horizontally the end that piece and second moves horizontally piece is connected with horizontally-guided spare respectively, and the other end is connected with second nut block with described first nut block, and first nut block is opposite with the second nut block rotation direction; Described vertically-guided device comprises a vertically-guided spare 341 at least, and vertically-guided spare is fixed on the frame; Described terminal slide block slides up and down along vertically-guided spare.
Workpiece to be processed is by work piece holder 6 clampings.
In the magnetic adsorption type two dimension grinding force test macro of gap of the present invention, contain emery wheel first semiaxis 361 and emery wheel second semiaxis 362 in the terminal slide block, emery wheel first semiaxis and emery wheel second semiaxis are located with the hole axle, internal and external threads connects the clamping emery wheel, the rolling bearing of first, second semiaxis and end is connected on the terminal slide block, and emery wheel only need unclamp to be threaded when changing and get final product.Fig. 5 is that it forms schematic diagram.
In the magnetic adsorption type two dimension grinding force test macro of gap of the present invention, the lifting linking member group can adopt the X-shaped connecting rod, the X-shaped connecting rod comprises two rod members that are hinged to X-shaped, one end of two rod members is fixedlyed connected with terminal slide block respectively, the other end of two rod members respectively with the horizontally-guided device in first move horizontally piece and second to move horizontally piece hinged.
In the magnetic adsorption type two dimension grinding force test macro of gap of the present invention, the lifting linking member group can adopt the V-arrangement connecting rod, the V-arrangement connecting rod comprises the rod member of two hinged forming V-shapes, the end of two rod members is fixedlyed connected with terminal slide block, the other end of two rod members respectively with the horizontally-guided device in first move horizontally piece and second to move horizontally piece hinged.
In the magnetic adsorption type two dimension grinding force test macro of gap of the present invention, the lifting linking member group can adopt X+V shape connecting rod, X+V shape connecting rod comprises that two are hinged to the rod member of X-shaped and the rod member of two hinged forming V-shapes, in the upper end of rod member and the horizontally-guided device to move horizontally piece hinged, the lower end of rod member is connected with terminal slide block; The rod member of X-shaped is on the rod member of V-arrangement or below the rod member of V-arrangement.
Adopt X+V shape connecting rod in the present embodiment.
In the magnetic adsorption type two dimension grinding force test macro of gap of the present invention, described power sensor comprises resistance-type and piezoelectric type one dimension or two-dimentional force cell, adopts one dimension S type pull pressure sensor in the present embodiment.
Operation principle is described below:
The lifting processing unit (plant) by magnetic absorbing unit with certain absorption affinity F
InhaleBe adsorbed on the magnetic conduction track platform, to guarantee that processing unit (plant) does not break away from magnetic conduction track platform in the processing test process.
When this system works, traction electric machine 11 rotates by the traction wheel that drives on the turbine and worm output shaft, and an end of pull rope is fixed in the groove on the traction wheel, and is wrapped in the groove of traction wheel when motion; The stressed power sensor 51 of the other end of pull rope and measured X direction links to each other, this power sensor is fixed on the lifting processing unit (plant) by adjusting bracket 54, and traction lifting processing unit (plant) moves by magnetic adsorption type travel mechanism edge and the parallel track direction on the magnetic conduction track platform; Can control the feed speed of emery wheel by the traction electric machine rotating speed on the control draw-gear.
Cutting linear velocity and the workpiece grinding depth that can control emery wheel respectively by grinding motor on the control lifting processing unit (plant) and horizontally-guided motor.
Suppose that universal ball and raceway surface coefficient of friction are μ, trade shape is a V-type, and angle is θ, and lifting processing unit (plant) weight is G, and the normal direction grinding force is Fn under certain technological parameter, and tangential grinding force is Ft.Then the grinding force measuring process is as follows:
At first carry out no load movement during one, grinding dynamometry and demarcate, that is: grinding work piece not, only draw the lifting processing unit (plant) with certain speed along the orbital motion on the magnetic conduction track platform.Then: the unloaded pulling force that directions X power sensor records is F
Draw, the gross pressure that three Y direction power sensors record is G.
Two, during grinding, gross pressure and the pulling force that record this moment are respectively:
F
Press'=G-Fn
F
Draw'=F
Draw-Fng μ/cos ((π-θ)/2)+Ft
Can find the solution by above two formulas and to draw normal direction and tangential grinding force:
Fn=G-F
Press'
Claims (7)
1. a gap magnetic adsorption type two dimension grinding force test macro is characterized in that: comprise draw-gear (1), magnetic conduction track platform (2), lifting processing unit (plant) (3), magnetic adsorption type travel mechanism (4) and data collecting system (5);
Described draw-gear comprises traction electric machine (11), traction wheel (12) and pull rope (13);
Described data collecting system comprises that at least three are measured stressed power sensor (51), power sensor, capture card (52) and the computer (53) that the measured X direction is stressed of Z direction;
Magnetic absorbing unit (41) and universal ball (42) are contained in described magnetic adsorption type travel mechanism, and magnetic absorbing unit comprises yoke (411) and magnet (412), and yoke and magnet are formed magnetic circuit; Magnetic absorbing unit by universal ball along the orbital motion on the track platform; Leave the gap between magnetic absorbing unit and the magnetic conduction platform;
Measure the stressed power sensor of Z direction and be installed in lifting processing unit (plant) bottom, and affixed with magnetic absorbing unit;
The stressed power sensor of measured X direction is fixed on the lifting processing unit (plant), and is connected with pull rope one end, the parallel track on pull rope and the magnetic conduction track platform; The other end of pull rope is fixed on the circumference of traction wheel, and traction wheel links to each other with the output shaft of motor;
Described lifting processing unit (plant) comprises frame (31), emery wheel (32), emery wheel elevating mechanism (33), vertically-guided device (34), horizontally-guided device (35), terminal slide block (36) and grinding motor (37); The output shaft of grinding motor links to each other with emery wheel by transmission mechanism, and emery wheel is installed on the described terminal slide block; Described emery wheel elevating mechanism comprises a lifting linking member group (331), and lifting linking member group one end and terminal slide block are hinged, and the other end and horizontally-guided device are hinged; Described horizontally-guided device comprises horizontally-guided motor (38), leading screw (351), be arranged on first nut block (352a) on the leading screw and second nut block (352b), horizontally-guided spare (353), first moves horizontally piece (354a) and second and moves horizontally piece (354b); Described first moves horizontally the end that piece and second moves horizontally piece is connected with horizontally-guided spare respectively, and the other end is connected with second nut block with described first nut block, and first nut block is opposite with the second nut block rotation direction; Described vertically-guided device comprises a vertically-guided spare (341) at least, and vertically-guided spare is fixed on the frame; Described terminal slide block slides up and down along vertically-guided spare.
2. gap as claimed in claim 1 magnetic adsorption type two dimension grinding force test macro is characterized in that: three magnetic absorbing units (41) and three universal balls (42) are contained in described magnetic adsorption type travel mechanism; Each magnetic absorbing unit passes through a universal ball along the orbital motion on the track platform; Three universal balls are equilateral triangle to be arranged, and intersects vertically through the normal and the pull rope direction at equilateral triangle center.
3. gap as claimed in claim 1 magnetic adsorption type two dimension grinding force test macro, it is characterized in that: described draw-gear also contains transmission mechanism, and the power shaft of this transmission mechanism links to each other with the output shaft of traction electric machine, and output shaft links to each other with traction wheel; Described transmission mechanism adopts gear drive, turbine and worm transmission, belt gear or chain drive.
4. gap as claimed in claim 1 magnetic adsorption type two dimension grinding force test macro, it is characterized in that: described lifting linking member group adopts the X-shaped connecting rod, the X-shaped connecting rod comprises two rod members that are hinged to X-shaped, one end of two rod members is fixedlyed connected with terminal slide block respectively, the other end of two rod members respectively with the horizontally-guided device in first move horizontally piece and second to move horizontally piece hinged.
5. gap as claimed in claim 1 magnetic adsorption type two dimension grinding force test macro, it is characterized in that: described lifting linking member group adopts the V-arrangement connecting rod, the V-arrangement connecting rod comprises the rod member of two hinged forming V-shapes, the end of two rod members is fixedlyed connected with terminal slide block, the other end of two rod members respectively with the horizontally-guided device in first move horizontally piece and second to move horizontally piece hinged.
6. gap as claimed in claim 1 magnetic adsorption type two dimension grinding force test macro, it is characterized in that: described lifting linking member group adopts X+V shape connecting rod, X+V shape connecting rod comprises that two are hinged to the rod member of X-shaped and the rod member of two hinged forming V-shapes, in the upper end of rod member and the horizontally-guided device to move horizontally piece hinged, the lower end of rod member is connected with terminal slide block; The rod member of X-shaped is on the rod member of V-arrangement or below the rod member of V-arrangement.
7. gap as claimed in claim 1 magnetic adsorption type two dimension grinding force test macro, it is characterized in that: described power sensor comprises resistance-type and piezoelectric type one dimension or two-dimentional force cell.
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| CN2011100236129A CN102248485B (en) | 2011-01-21 | 2011-01-21 | Clearance magnetic adsorption type two-dimensional grinding force test system |
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| CN2011100236129A CN102248485B (en) | 2011-01-21 | 2011-01-21 | Clearance magnetic adsorption type two-dimensional grinding force test system |
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| CN102672538A (en) * | 2011-12-31 | 2012-09-19 | 河南科技大学 | Calibrating device and calibrating method by adopting resistance strain type turning dynamometer |
| CN103551923A (en) * | 2013-10-25 | 2014-02-05 | 河南科技大学 | Calibration method and calibration device for calibrating turning dynamometer on lathe |
| CN104128883A (en) * | 2014-07-29 | 2014-11-05 | 北京理工大学 | High precision grinding force measuring device |
| CN107764452A (en) * | 2017-10-16 | 2018-03-06 | 清华大学天津高端装备研究院 | A kind of permanent magnet gap absorption force measuring device and its application |
| CN109434200A (en) * | 2018-10-24 | 2019-03-08 | 武汉理工大学 | A kind of two-dimentional error-compensating apparatus and method for titanium alloy casting circular hole chamber of polishing |
| CN112247741A (en) * | 2020-09-25 | 2021-01-22 | 深圳市裕展精密科技有限公司 | Calibration system, calibration method and calibration device |
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| CN107764452A (en) * | 2017-10-16 | 2018-03-06 | 清华大学天津高端装备研究院 | A kind of permanent magnet gap absorption force measuring device and its application |
| CN109434200A (en) * | 2018-10-24 | 2019-03-08 | 武汉理工大学 | A kind of two-dimentional error-compensating apparatus and method for titanium alloy casting circular hole chamber of polishing |
| CN112247741A (en) * | 2020-09-25 | 2021-01-22 | 深圳市裕展精密科技有限公司 | Calibration system, calibration method and calibration device |
| CN112247741B (en) * | 2020-09-25 | 2022-04-08 | 深圳市裕展精密科技有限公司 | Calibration system, calibration method and calibration device |
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