CN207937296U - A kind of single abrasive grain pendulum model scratching rig for testing of ultrasonic wave added - Google Patents
A kind of single abrasive grain pendulum model scratching rig for testing of ultrasonic wave added Download PDFInfo
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- CN207937296U CN207937296U CN201820203287.1U CN201820203287U CN207937296U CN 207937296 U CN207937296 U CN 207937296U CN 201820203287 U CN201820203287 U CN 201820203287U CN 207937296 U CN207937296 U CN 207937296U
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Abstract
The utility model discloses a kind of single abrasive grain pendulum models of ultrasonic wave added to scratch rig for testing, X is installed in straight-line motion mechanism between lathe bed and Z-direction straight-line motion mechanism, Z-direction straight-line motion mechanism is installed in X between straight-line motion mechanism and pinboard, angle vernier device is installed between pinboard and holder, ultrasonic transducer links together and is fixed on holder with amplitude transformer, and test specimen does high frequency period vibration together with amplitude transformer；Spindle motor drives rotary disk to be rotated around Z-direction, is turned round outside rotary disk on peripheral wall and is installed with tool heads, single abrasive grain is installed in the tool heads.It has the following advantages that：X is to feeding for controlling scratching depth; angle vernier device is parallel with Z-direction direction of feed for adjusting test specimen scratching surface; Z-direction feeds the cut for forming the cutting-ins equal length such as several in surface of test piece; the interference scratching of single abrasive grain and non-interfering scratching may be implemented, can be used for studying the Material Removal Mechanism of single abrasive grain scratching process of ultrasonic wave added.
Description
Technical field
The utility model is related to single abrasive grain pendulum model scratchings of a kind of scratching rig for testing more particularly to a kind of ultrasonic wave added
Rig for testing.
Background technology
Demand with the development of science and technology to hard brittle material, difficult-to-machine material and novel advanced material is increasing, right
More stringent requirements are proposed for processing efficiency, processing quality and the machining accuracy of vital part.Traditional method for grinding is because inevitable
The larger grinding force and grinding heat of generation, cause surface of test piece, sub-surface damage and wheel life be low etc. a series of asks
Topic.Especially in precise and ultraprecise machining field, the presence of these manufacturing deficiencies seriously restricts part processing precision and processing
The raising of efficiency.To solve these problems, ultrasonic vibration is introduced in grinding.Research confirms that ultrasound is shaken extensively both at home and abroad
Dynamic grinding is improving material removing rate, raising machined surface quality and machining accuracy, reduces surface of test piece damage and is extending sand
Taking turns service life etc. has significant advantage.It is irregular that grinding process regards that abrasive surface largely arranges as, and distribution is irregular
The cutting process that different abrasive grain is completed jointly.In scientific research, complicated phenomenon is often abstracted into a kind of mould of simplification
Formula, to inquire into some most essential problems.The shear action for constituting the tiny abrasive grain of grinding wheel is the basis of grinding, single mill
Basic model of the grain cutting as grinding, becomes a kind of important means of the complicated ablation of understanding.It is therefore desirable to open
Exhibition ultrasonic wave added condition places an order the cutting mechanisms of abrasive grain scratching process material.
Related patents are retrieved to find：
Application No. is 201410241159.2 patent applications to disclose a kind of lower grinding test device of ultrasonic vibration auxiliary
And method, it is the periphery in test specimen that this method, which is formed by cut, and the depth of cut is constant.Wheel grinding process abrasive grain
Then incision test specimen is cut out, be variation in the scratching depth of this process abrasive grain.
Application No. is 201511015483.3 patent application and application No. is 201521125261.2 utility model is special
Profit also discloses a kind of novel ultrasonic vibration single abrasive grain groove experimental rig of auxiliary and method.Above-mentioned experimental rig and method
In implementation process by ultrasonic vibration attachment between test specimen and dynamometer, while Vltrasonic device is not fixed on dynamometer
But it is connected with the external world.It can be obtained according to basic mechanical analysis, the power that dynamometer measures is that single abrasive grain acts on test specimen
Power acts on the reasonable of the power in tooling with amplitude transformer, is not true scratching power, therefore the experimental rig and method exist
Principle mistake.
While experimental rig and method disclosed above is realized on the basis of on precision grinder, and precision grinder
Various aspects precision scratches the Material Removal Mechanism of process far from place an order abrasive grain of research ultrasonic wave added condition is met.
Utility model content
The utility model provides a kind of single abrasive grain pendulum model scratching rig for testing of ultrasonic wave added, and which overcome background skills
Deficiency in art present in precision grinder.
The used technical solution that the utility model solves its technical problem is：
A kind of single abrasive grain pendulum model of ultrasonic wave added scratches rig for testing, including lathe bed (1), X are to straight-line motion mechanism
(2), Z-direction straight-line motion mechanism (3), pinboard (5), angle vernier device (6), holder (7), ultrasonic transducer (8), amplitude transformer
(9), test specimen (10), tool heads (11), rotary disk (12) and spindle motor (14)；
The X is installed between lathe bed (1) and Z-direction straight-line motion mechanism (3) to straight-line motion mechanism (2) and Z-direction straight line
Motion (3) can be along X to linear motion, which is installed in X to straight-line motion mechanism (2) and turns
Between fishplate bar (5) and pinboard (5) can move along a straight line along Z-direction, which is installed in pinboard (5) and holder
(7) between and holder (7) can be rotated along Y-axis, which links together with amplitude transformer (9) and be fixed on holder
(7) on, which does high frequency period vibration together in amplitude transformer (9) and with amplitude transformer (9)；
The spindle motor (14) is installed on lathe bed (1), and spindle motor (14) the drive connection rotary disk (12) is to drive
Rotary disk (12) is rotated around Z-direction, which turns round on peripheral wall and be installed with tool heads (11) outside, solid in the tool heads (11)
Equipped with single abrasive grain.
Further include dynamometer (4), which is installed between pinboard (5) and angle vernier device (6).
Further include main shaft (13), main shaft (13) the drive connection spindle motor (14) and rotary disk (12) and main shaft (13) axis
Line is arranged along Z-direction.
Further include control system, which connects X to straight-line motion mechanism (2), Z-direction straight-line motion mechanism (3), angle
Spend micromatic setting (6) and spindle motor (14).
There are two tool heads (11) number includes, two tool heads (11) quality are equal and axially and symmetrically are installed in
On the revolution peripheral wall of the rotary disk (12), has on two tool heads (11) and only there are one attachings in tool heads (11) single
Abrasive grain.
Compared with the background art, it has the following advantages that the technical program：
X is to feeding for controlling scratching depth, and angle vernier device is for adjusting test specimen scratching surface and Z-direction direction of feed
Parallel, Z-direction feeds the cut for forming the cutting-ins equal length such as several in surface of test piece, first, by matching Z-direction feeding
The rotating speed of feed speed and rotary disk (single abrasive grain) can control the spacing of cut, when cut spacing is smaller, phase between cut
It mutually overlaps, therefore the interference scratching of single abrasive grain and non-interfering scratching may be implemented in the rig for testing, can be used for studying ultrasound
Assist the Material Removal Mechanism of single abrasive grain scratching process；Second, being equipped with angle vernier device so that obtained by primary experiment
Multiple cuts depth and length have higher uniformity；Third, ultrasonic transducer links together and consolidates with amplitude transformer
Be scheduled on holder, test specimen clamping does high frequency period vibration in amplitude transformer and together with amplitude transformer, the abrasive grain of pendulum model scratching with
The relative motion of test specimen with it is most like in practical grinding process, true grinding process can be simulated.
Description of the drawings
The utility model is described in further detail with present embodiment below in conjunction with the accompanying drawings.
Fig. 1 is that a kind of single abrasive grain pendulum model of ultrasonic wave added of present embodiment scratches the schematic diagram of rig for testing.
Specific implementation mode
A kind of single abrasive grain pendulum model scratching rig for testing of ultrasonic wave added, please refers to Fig. 1, including lathe bed 1, X are transported to straight line
Motivation structure 2, Z-direction straight-line motion mechanism 3, dynamometer 4, pinboard 5, angle vernier device 6, holder 7, ultrasonic transducer 8, luffing
Bar 9, test specimen 10, tool heads 11, rotary disk 12, main shaft 13, spindle motor 14 and control system etc..The ultrasonic vibration can be
Axial ultrasonic vibration, radial ultrasonic vibration and elliptical ultrasonic vibration.
The X is installed between lathe bed 1 and Z-direction straight-line motion mechanism 3 machine so that Z-direction moves along a straight line to straight-line motion mechanism 2
Structure 3 can be along X to linear motion, in concrete structure：The X is to straight-line motion mechanism 2 as included being located at X on lathe bed 1 to straight-line electric
Machine and the X drive the X can be along X to linear motion, the Z to mover to the X that linear motor is arranged to mover, by X to linear motor
X is installed in on mover to straight-line motion mechanism 3, therefore Z-direction straight-line motion mechanism 3 can be along X to linear motion.
The Z-direction straight-line motion mechanism 3 be installed in X between straight-line motion mechanism 2 and dynamometer 4 so that dynamometer 4 can be along Z
To linear motion, in concrete structure：The Z-direction straight-line motion mechanism 3 is as included being located at Z-direction linear motors and the Z of the X on mover
The Z-direction mover being arranged to linear motor, is driven the Z-direction mover that can move along a straight line along Z-direction, the dynamometer 4 by Z-direction linear motor
It is installed on Z-direction mover, therefore dynamometer 4 can be along Z to linear motion.
The pinboard 5 is fixed on dynamometer 4；The angle vernier device 6 be installed between pinboard 5 and holder 7 so that
Holder 7 can be rotated along Y-axis, in concrete structure：The angle vernier device 6 as include be installed in pinboard 5 Y-axis electric rotating machine and
The Y-axis that the Y-axis electric rotating machine is arranged rotates mover, which rotates mover and can be rotated along Y-axis by the effect of Y-axis electric rotating machine, the branch
Frame 7 is installed on Y-axis rotation mover, therefore holder 7 can be rotated along Y-axis.
The ultrasonic transducer 8 links together and is fixed on holder 7 with amplitude transformer 9, and 10 clamping of test specimen is in amplitude transformer 9
Above and with amplitude transformer 9 high frequency period vibration is done together.
The ultrasound on holder 7 and the holder 7 can be controlled to straight-line motion mechanism 2, Z-direction straight-line motion mechanism 3 by the X
Energy converter 8, amplitude transformer 9, test specimen 10, to, Z-direction linear motion, can control holder 7 by the angle vernier device 6 and be revolved around Y-axis along X
Turn, so that holder 7, ultrasonic transducer 8, amplitude transformer 9, test specimen 10 is done fine motion beat along direction shown in Fig. 1 (being rotated around Y-axis), make
The scratching surface of test specimen 10 is parallel to Z to direction of feed.
The spindle motor 14 is fixed on lathe bed 1, the spindle motor 14 by 13 lower end of shaft coupling drive connection main shaft with
Main shaft 13 is driven to rotate, which arranges that 13 upper end of main shaft is connected with rotary disk 12, so that spindle motor along Z-direction
14 drive rotary disk 12 to be rotated around Z-direction.
Fixed there are two tool heads 11 on the outer revolution peripheral wall of the rotary disk 12, two 11 mass of tool heads are equal and two
The axisymmetrical arrangement of the relatively outer revolution peripheral wall of a tool heads 11, if two tool heads 11 can play the work of balance eccentric mass
With.There are one single abrasive grain is installed in tool heads 11 in two tool heads 11, another does not set single abrasive grain, then rotary disk
12 rotations only have single abrasive grain in tool heads 11 to be contacted with test specimen when realizing scratching.
Among present embodiment：1, it is the precision of guarantee test, it is micro- that the circular runout of the main shaft 13 is preferable over 1
Rice can further be better than 0.5 μm, be preferably equipped with the main shaft of hydrodynamic journal liquid polymers；14 rotating speed of spindle motor should have higher
Stability, as speed error is less than the 0.5% of setting value；X and the position error of Z-direction feeding are preferable over 1 μm, further may be used
Better than 0.5 μm, preferred high accuracy linear motor；Angle vernier device should have higher resolution ratio, as resolution ratio is better than 0.1 °；
2, test specimen scratching surface and Z-direction direction of feed parallelism error are more preferably less than 0.5 μm/10mm；3, the surface in test specimen scratching face is thick
Rugosity Ra is preferable over 0.1；And the flatness for scratching face is preferable over 0.5 μm/10mm.
A kind of test method of single abrasive grain pendulum model scratching rig for testing of ultrasonic wave added, including：
Step 1, by 10 clamping of test specimen in amplitude transformer 9, the material of test specimen is as being sapphire；
Step 2, scratching surface (right side of test specimen 10 in figure) and the Z of test specimen 10 are made by adjusting angle vernier device 6
There is the higher depth of parallelism to direction of feed, as parallelism error is better than 0.2 μm/10mm；
Step 3, rotary disk rotation is driven by control system driving spindle 13, tool heads 11 is driven to move in a circle, it should
13 rotating speed of main shaft is 600~700rpm, is such as 682rpm, the radius of gyration on 11 top of tool heads is (with respect to 13 axis of main shaft
Spacing) it is 120~160mm, it is such as 140mm, it is 5m/s that linear velocity is scratched when selecting 682rpm and 140mm；
Step 4, drive X to make to straight-line motion mechanism 2 by control system " Z-direction straight-line motion mechanism 3, turns dynamometer 4
Fishplate bar 5, angle vernier device 6, holder 7, ultrasonic transducer 8, amplitude transformer 9 and test specimen 10 " are moved along X positive directions, drive " holder
7 and the ultrasonic transducer 8 on the holder 7, amplitude transformer 9 and test specimen 10 " moved along X positive directions；The movement is further as wrapped
It includes：
First fast feed, feed speed such as select 2mm/s as being 1.5~5.5mm/s；
When the 11 top limit of tool heads close to test specimen 10 scratch surface when, be changed to inching feed, every time feed 0.1~
0.3 μm, 0.2 μm is such as selected, until tool heads 11 are contacted with the scratching of test specimen 10 surface, contacts and is otherwise by dynamometer 4
No powerful signal judges, is completed to knife when powerful signal occurs.
Step 5, ultrasonic transducer is opened, so that test specimen 10 is done high frequency ultrasound vibration together with amplitude transformer 9, the frequency of vibration is such as
For 25~30kHz, further such as 27kHz.
Step 6, X is driven to continue the drive " ultrasound on holder 7 and the holder 7 to straight-line motion mechanism by control system
Energy converter 8, amplitude transformer 9 and test specimen 10 " are fed along X positive directions, and feeding distance is 8~12 μm, such as selects 10 μm, confirms the secondary experiment
Scratching depth be 10 μm, and scratch depth error be less than 0.2 μm.
Step 7, the feed speed of Z-direction straight-line motion mechanism 3 is set as 5~6m/s, feeding distance is 2.5~3.5mm,
5.68m/s, feeding distance 3mm are such as selected, and Z-direction straight-line motion mechanism is driven to realize feeding, forms 7 theoretical spacing at this time
0.5mm etc. cutting-ins equal length cut.
Step 8, it drives X to be fed to straight-line motion mechanism 2 to negative direction along X by control system, tool heads is made to exit examination
Part closes ultrasonic transducer.
The above, only the utility model preferred embodiment, therefore the utility model implementation cannot be limited according to this
It is new all should still to belong to this practicality that is, according to equivalent changes and modifications made by the utility model patent range and description for range
In the range of type covers.
Claims (5)
1. a kind of single abrasive grain pendulum model of ultrasonic wave added scratches rig for testing, it is characterised in that：
Including lathe bed (1), X to straight-line motion mechanism (2), Z-direction straight-line motion mechanism (3), pinboard (5), angle vernier device
(6), holder (7), ultrasonic transducer (8), amplitude transformer (9), test specimen (10), tool heads (11), rotary disk (12) and spindle motor
(14)；
The X is installed in straight-line motion mechanism (2) between lathe bed (1) and Z-direction straight-line motion mechanism (3) and Z-direction moves along a straight line
Mechanism (3) can be along X to linear motion, which is installed in X to straight-line motion mechanism (2) and pinboard
(5) between and pinboard (5) can move along a straight line along Z-direction, the angle vernier device (6) be installed in pinboard (5) and holder (7) it
Between and holder (7) can be rotated along Y-axis, the ultrasonic transducer (8) and amplitude transformer (9) link together and are fixed on holder (7),
Test specimen (10) clamping does high frequency period vibration together in amplitude transformer (9) and with amplitude transformer (9)；
The spindle motor (14) is installed on lathe bed (1), and spindle motor (14) the drive connection rotary disk (12) is to drive revolution
Disk (12) is rotated around Z-direction, which turns round on peripheral wall and be installed with tool heads (11), be installed in the tool heads (11) outside
Single abrasive grain.
2. single abrasive grain pendulum model of a kind of ultrasonic wave added according to claim 1 scratches rig for testing, it is characterised in that：Also
Including dynamometer (4), which is installed between pinboard (5) and angle vernier device (6).
3. single abrasive grain pendulum model of a kind of ultrasonic wave added according to claim 1 scratches rig for testing, it is characterised in that：Also
Including main shaft (13), main shaft (13) the drive connection spindle motor (14) and rotary disk (12) and main shaft (13) axis are along Z-direction cloth
It sets.
4. single abrasive grain pendulum model of a kind of ultrasonic wave added according to claim 1 scratches rig for testing, it is characterised in that：Also
Including control system, which connects X to straight-line motion mechanism (2), Z-direction straight-line motion mechanism (3), angle vernier device
(6) and spindle motor (14).
5. single abrasive grain pendulum model of a kind of ultrasonic wave added according to claim 1 or 2 or 3 or 4 scratches rig for testing, special
Sign is：There are two tool heads (11) number includes, two tool heads (11) quality are equal and axially and symmetrically are installed in
On the revolution peripheral wall of the rotary disk (12), has on two tool heads (11) and only there are one attachings in tool heads (11) single
Abrasive grain.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820203287.1U CN207937296U (en) | 2018-02-06 | 2018-02-06 | A kind of single abrasive grain pendulum model scratching rig for testing of ultrasonic wave added |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820203287.1U CN207937296U (en) | 2018-02-06 | 2018-02-06 | A kind of single abrasive grain pendulum model scratching rig for testing of ultrasonic wave added |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108387474A (en) * | 2018-02-06 | 2018-08-10 | 华侨大学 | Single abrasive grain pendulum model of ultrasonic wave added scratches rig for testing |
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2018
- 2018-02-06 CN CN201820203287.1U patent/CN207937296U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108387474A (en) * | 2018-02-06 | 2018-08-10 | 华侨大学 | Single abrasive grain pendulum model of ultrasonic wave added scratches rig for testing |
| CN108387474B (en) * | 2018-02-06 | 2023-12-29 | 华侨大学 | Ultrasonic-assisted single abrasive particle pendulum type scratching test equipment |
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