CN207937333U - A kind of grinding wheel abrasive grain bond strength test equipment - Google Patents
A kind of grinding wheel abrasive grain bond strength test equipment Download PDFInfo
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- CN207937333U CN207937333U CN201820204192.1U CN201820204192U CN207937333U CN 207937333 U CN207937333 U CN 207937333U CN 201820204192 U CN201820204192 U CN 201820204192U CN 207937333 U CN207937333 U CN 207937333U
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- abrasive grain
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- tool heads
- motion mechanism
- bond strength
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Abstract
The utility model discloses a kind of grinding wheel abrasive grain bond strength test equipments,Single abrasive grain is fixedly arranged at by way of being brazed or being electroplated in tool heads,Tool heads are driven to do circle rotation movement by spindle motor,It is parallel with Z-direction that workpiece scratching surface is adjusted by angle vernier device,It is fed to the linkage of straight-line motion mechanism by Z-direction straight-line motion mechanism and X in test process,The cut that several depth become larger is scratched out in workpiece surface,With the increase of scratching depth,The power acted on single abrasive grain is increasing,Until single Grain Falling Off,Judge whether to fall off by dynamometer,It is obtained by dynamometer when falling off and records the normal force and tangential force that act on single abrasive grain,Using the bond strength of single abrasive grain of the tangential force and normal force overall merit,Using the interaction course between the test mode energy real simulation wheel grinding process abrasive grain and the relative motion form and abrasive grain and workpiece of workpiece,The bond strength of abrasive grain in grinding process can accurately be measured.
Description
Technical field
The utility model is related to a kind of test equipment more particularly to a kind of grinding wheel abrasive grain bond strength test equipments.
Background technology
Grinding is one of common processing method in mechanical processing, and the binding performance of abrasive grain is to influence grinding quality, grinding
An important factor for efficiency and grinding tool service life.Abrasive grain binding performance is poor to reduce grinding efficiency, while can seriously affect
The service life of grinding tool.It is irregular that grinding process regards that abrasive surface largely arranges as, is distributed irregular different abrasive grain
The cutting process completed jointly.Study the combination that single abrasive grain and matrix bond strength is the abrasive grain on the entire grinding wheel of research
The basis of intensity.It is therefore desirable to carry out the correlative study of the bond strength of single abrasive grain.
The related patents for retrieving the art are found：
It discloses a kind of super-hard abrasive dynamic application No. is 201410753906.0 application and holds force test system and side
Method, test method abrasive grain in implementation process is relatively low relative to the movement velocity of workpiece, thus can not accurate simulation be ground
The percussion between the abrasive grain and workpiece of high speed circular motion is done in journey, therefore can not accurately be tested out true abrasive grain and be held
Power；
A kind of super-hard abrasive disclosed in application application No. is 201420775529.6 holds force test system, application number
For a kind of diamond matrix disclosed in 201610642782.8 application and the application application No. is 201620850232.0
Test device and method to diamond hold carry out under the conditions of quasi-static in implementation process, can not simulate mill
The percussion between process abrasive grain and workpiece is cut, while the relative motion form of abrasive grain and workpiece is linear motion, it is even more impossible to
The interaction between abrasive grain and workpiece is simulated, therefore theoretically also can not accurately test out true abrasive grain hold.
Utility model content
The utility model provides a kind of grinding wheel abrasive grain bond strength test equipment, and which overcome background technology medium plain emery wheel mills
Burl closes the existing deficiency of strength test equipment.
The used technical solution that the utility model solves its technical problem is：
A kind of grinding wheel abrasive grain bond strength test equipment, including lathe bed (1), X are transported to straight-line motion mechanism (2), Z-direction straight line
Motivation structure (3), dynamometer (4), pinboard (5), angle vernier device (6), fixture (7), workpiece (8), tool heads (9), revolution
Disk (10) and spindle motor (12)；The X to straight-line motion mechanism (2) be installed in lathe bed (1) and Z-direction straight-line motion mechanism (3) it
Between and Z-direction straight-line motion mechanism (3) along X to linear motion；The Z-direction straight-line motion mechanism (3) is installed in X to straight-line motion mechanism
(2) between dynamometer (4) and dynamometer (4) moves along a straight line along Z-direction, which is fixed on dynamometer (4)；The angle
Degree micromatic setting (6) is installed between pinboard (5) and fixture (7) and fixture (7) is rotated along Y-axis, and workpiece (8) clamping is at this
On fixture (7)；The spindle motor (12) is fixed on lathe bed (1), spindle motor (12) the drive connection rotary disk (10) and band
Dynamic rotary disk (10) is rotated around Z-direction, which turns round fixed tool heads (9) on peripheral wall outside, fixed in the tool heads (9)
There is single abrasive grain, this is fixed by the way of soldering or plating；By Z-direction straight-line motion mechanism (3) and X to linear motion machine
The linkage feeding of structure (2) and rotary disk (10) drive the circular motion of single abrasive grain in tool heads (9) to be drawn on workpiece (8) surface
It wipes, which judges whether single abrasive grain falls off and normal force and tangential force when falling off suffered by record abrasive grain,
Using the bond strength of the tangential force and normal force overall merit abrasive grain.
Further include main shaft (11), main shaft (11) axis is along Z-direction arrangement and drive connection spindle motor (12) and rotary disk
(10)。
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 (12).
Fixed there are two tool heads (9) on the outer revolution peripheral wall of the rotary disk (10), two tool heads (9) quality are equal
And the axisymmetrical of the relatively outer revolution peripheral wall of two tool heads (9) arranges have in two tool heads (9) and only there are one tools
It is installed with single abrasive grain on head (9).
Compared with the background art, it has the following advantages that the technical program：
Single abrasive grain is fixedly arranged at by way of being brazed or being electroplated in tool heads, drives tool heads to do by spindle motor
Circle rotation moves, parallel with Z-direction by angle vernier device adjustment workpiece scratching surface, passes through Z-direction straight line in test process
Motion and X are fed to the linkage of straight-line motion mechanism, and the cut that several depth become larger is scratched out in workpiece surface,
With the increase of scratching depth, the power acted on single abrasive grain is increasing, until single Grain Falling Off, is sentenced by dynamometer
It is disconnected whether to fall off, it is obtained by dynamometer when falling off and records the normal force and tangential force that act on single abrasive grain, using this
The bond strength of single abrasive grain of tangential force and normal force overall merit, using the test mode energy real simulation wheel grinding process
Interaction course between abrasive grain and the relative motion form and abrasive grain and workpiece of workpiece can accurately measure mill
The bond strength of abrasive grain during cutting.
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 a kind of schematic diagram of grinding wheel abrasive grain bond strength test equipment of present embodiment.
Specific implementation mode
A kind of grinding wheel abrasive grain bond strength test equipment, please refers to Fig. 1, including lathe bed 1, X are to straight-line motion mechanism 2, Z-direction
Straight-line motion mechanism 3, dynamometer 4, pinboard 5, angle vernier device 6, fixture 7, workpiece 8, tool heads 9, rotary disk 10, main shaft
11, spindle motor 12 and control system.
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 by Z-direction linear motor, the dynamometer 4 dress
It is located on Z-direction mover, therefore dynamometer 4 can move along a straight line along Z-direction.
The pinboard 5 is fixed on dynamometer 4；The angle vernier device 6 be installed between pinboard 5 and fixture 7 so that
Fixture 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 folder
Tool 7 is installed on Y-axis rotation mover, therefore fixture 7 can be rotated along Y-axis.8 clamping of workpiece is on the fixture 7.
The workpiece 8 on fixture 7 and the fixture 7 can be controlled to straight-line motion mechanism 2, Z-direction straight-line motion mechanism 3 by the X
Along X to, Z-direction linear motion, fixture 7 can be controlled by the angle vernier device 6 and rotated around Y-axis, make fixture 7 and workpiece 8 along Fig. 1
Shown in direction (being rotated around Y-axis) do fine motion beat, in pendulum model move, so that the scratching surface of workpiece 8 is parallel to Z-direction feeding side
To.
The spindle motor 12 is fixed on lathe bed 1, the spindle motor 12 by 11 lower end of shaft coupling drive connection main shaft with
Main shaft 11 is driven to rotate, which arranges that 11 upper end of main shaft is connected with rotary disk 10, so that rotary disk 10 along Z-direction
It is rotated around Z-direction.
Fixed there are two tool heads 9 on the outer revolution peripheral wall of the rotary disk 10, two 9 mass of tool heads are equal and two
The axisymmetrical arrangement of the relatively outer revolution peripheral wall of tool heads 9, if two tool heads 9 can play the role of balancing eccentric mass.It should
There are one single abrasive grain is installed in tool heads 9 in two tool heads 9, this is fixed by the way of soldering or plating, single
Abrasive grain is fixed on by the way of soldering or plating in tool heads 9, another does not set single abrasive grain, then rotary disk 10 rotates reality
Only have single abrasive grain in tool heads 9 to be contacted with workpiece when now scratching.
Among present embodiment：After the micromatic setting adjusts, it is parallel with Z-direction direction of feed that workpiece scratches surface
Degree error is more preferably less than 0.5 μm/10mm；The surface roughness Ra in workpiece scratching face is preferable over 0.1, and scratches the plane in face
Degree is preferable over 0.5 μm/10mm.
A kind of test method of grinding wheel abrasive grain bond strength test equipment, including：
Step 1, by 8 clamping of workpiece on fixture 7, the material of workpiece 8 is as being stainless steel；
Step 2, scratching surface and the Z-direction depth of parallelism of workpiece 8 are made by adjusting angle vernier device 6, parallelism error is most
It is better than 0.2 μm/10mm well；
Step 3, tool heads 9 are driven to move in a circle by control system driving spindle 11, the rotating speed of main shaft is such as
1200rpm, the top radius of gyration of tool heads 9 is as being 140mm, then scratching linear velocity at this time is 8.8m/s；
Step 4, X is driven to drive fixture 7 and workpiece 8 to be moved along X positive directions to straight-line motion mechanism by control system, it should
Step 4 includes further：
Fast feed, the speed of feeding is as being 2mm/s, when the top limit of tool heads 9 is close to the scratching surface of workpiece 8
When, it is changed to the mode of inching feed, such as 0.2 μm of feeding, until tool heads are contacted with the scratching surface of workpiece 8, connects every time
By dynamometer, whether powerful signal judges whether touching, and is completed to knife when powerful signal occurs.
Step 5, feed speeds of the X to straight-line motion mechanism is set, is such as 20 μm/s, setting Z-direction straight-line motion mechanism
Feed speed is such as 10mm/s.
Step 6, control X is then scratched out in workpiece surface to straight-line motion mechanism and the linkage feeding of Z-direction straight-line motion mechanism
The cut that depth gradually increases, specifically such as：The distance between two neighboring scratching is 0.5mm, drawing between adjacent two cut
It is 1 micron to wipe depth difference.
Step 7, the force signal obtained by dynamometer 4 judges whether single abrasive grain falls off, and record acts on list when falling off
Normal force and tangential force on abrasive grain, among present embodiment, single abrasive grain scratches out at the 27th to fall off, normal force
It is 61.5N and 52.7N respectively with tangential force, suffered tangential force and normal force overall merit abrasive grain when using single Grain Falling Off
Bond strength.
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 (4)
1. a kind of grinding wheel abrasive grain bond strength test equipment, it is characterised in that：Including lathe bed (1), X to straight-line motion mechanism (2),
Z-direction straight-line motion mechanism (3), dynamometer (4), pinboard (5), angle vernier device (6), fixture (7), workpiece (8), tool heads
(9), rotary disk (10) and spindle motor (12)；The X is installed in lathe bed (1) and Z-direction linear motion machine to straight-line motion mechanism (2)
Between structure (3) and Z-direction straight-line motion mechanism (3) along X to linear motion；The Z-direction straight-line motion mechanism (3) is installed in X to straight line
Between motion (2) and dynamometer (4) and dynamometer (4) moves along a straight line along Z-direction, which is fixed on dynamometer (4)
On；The angle vernier device (6) is installed between pinboard (5) and fixture (7) and fixture (7) is rotated along Y-axis, the workpiece (8)
Clamping is on the fixture (7)；The spindle motor (12) is fixed on lathe bed (1), spindle motor (12) the drive connection rotary disk
(10) and rotary disk (10) is driven to be rotated around Z-direction, which turns round fixed tool heads (9), tool heads on peripheral wall outside
(9) single abrasive grain is installed on, this is fixed by the way of soldering or plating；By Z-direction straight-line motion mechanism (3) and X to
The linkage feeding of straight-line motion mechanism (2) and rotary disk (10) drive the circular motion of single abrasive grain in tool heads (9) in work
Part (8) surface is scratched, which judges whether single abrasive grain falls off and the normal direction when falling off suffered by record abrasive grain
Power and tangential force, using the bond strength of the tangential force and normal force overall merit abrasive grain.
2. a kind of grinding wheel abrasive grain bond strength test equipment according to claim 1, it is characterised in that：It further include main shaft
(11), main shaft (11) axis is along Z-direction arrangement and drive connection spindle motor (12) and rotary disk (10).
3. a kind of grinding wheel abrasive grain bond strength test equipment according to claim 1, it is characterised in that：It further include control system
System, the control system connect X to straight-line motion mechanism (2), Z-direction straight-line motion mechanism (3), angle vernier device (6) and main shaft
Motor (12).
4. a kind of grinding wheel abrasive grain bond strength test equipment according to claim 1 or 2 or 3, it is characterised in that：The revolution
Fixed there are two tool heads (9) on the outer revolution peripheral wall of disk (10), two tool heads (9) quality are equal and two tool heads
(9) axisymmetrical of relatively outer revolution peripheral wall arranges have in two tool heads (9) and only there are one fixed in tool heads (9)
There is single abrasive grain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820204192.1U CN207937333U (en) | 2018-02-06 | 2018-02-06 | A kind of grinding wheel abrasive grain bond strength test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820204192.1U CN207937333U (en) | 2018-02-06 | 2018-02-06 | A kind of grinding wheel abrasive grain bond strength test equipment |
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| Publication Number | Publication Date |
|---|---|
| CN207937333U true CN207937333U (en) | 2018-10-02 |
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ID=63651703
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820204192.1U Active CN207937333U (en) | 2018-02-06 | 2018-02-06 | A kind of grinding wheel abrasive grain bond strength test equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108344684A (en) * | 2018-02-06 | 2018-07-31 | 华侨大学 | Grinding wheel abrasive grain bond strength test equipment |
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2018
- 2018-02-06 CN CN201820204192.1U patent/CN207937333U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108344684A (en) * | 2018-02-06 | 2018-07-31 | 华侨大学 | Grinding wheel abrasive grain bond strength test equipment |
| CN108344684B (en) * | 2018-02-06 | 2023-12-29 | 华侨大学 | Grinding wheel abrasive grain bonding strength test equipment |
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