CN110181404A - A kind of hard grinding wheel precise dressing method - Google Patents
A kind of hard grinding wheel precise dressing method Download PDFInfo
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- CN110181404A CN110181404A CN201910648835.0A CN201910648835A CN110181404A CN 110181404 A CN110181404 A CN 110181404A CN 201910648835 A CN201910648835 A CN 201910648835A CN 110181404 A CN110181404 A CN 110181404A
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- grinding wheel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/06—Dust extraction equipment on grinding or polishing machines
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Abstract
A kind of hard grinding wheel precise dressing method, comprising the following steps: preparation, analysis processing, micro finishing, quality evaluation, shutdown；The hard grinding wheel precise dressing method has formulated single layer of abrasive particles grinding wheel precise dressing step, the relationship distinguished the application range of grinding wheel, quantified precise dressing and grinding wheel abrasive grain；The yield rate that single layer of super hard grinding wheel is not only increased using the present invention improves the grinding wheel accuracy of form and position, and finishing is at low cost, operation is practical, efficient, is the hard grinding wheel a being worth promoting sorting and precise dressing method.
Description
Technical field
The invention belongs to grinding wheel manufacture and grinding applied technical field, in particular to a kind of hard grinding wheel accurate repair perfect squares
Method.
Background technique
Electroplating abrasion wheel and brazed abrasive wheel have manufacture craft simple, and bonding agent holding power is big, abrasive grain exposure is high, chip space
Greatly, the series of advantages such as good, long service life of grinding performance.Such wheel grinding working lining usually only single layer of abrasive particles, both body
The high intensity of bonding agent is showed, and has played the advantage of super hard abrasive (diamond, CBN), particularly suitable for high speed, efficiently, by force
Power grinding and form grinding.But due to its manufacturing process, wheel face abrasive grain is uneven, contour is poor, it is difficult to
Reach accurate grinding requirement, is currently used primarily in corase grinding processing.
Finishing is to obtain the processing of wheel face grinding performance and perfect form, in order to realize the precision of such grinding wheel
Grinding, grinding wheel must be modified.However, the finishing about single layer of abrasive particles grinding wheel, currently without feasible practical dressing technique
Or trim process, and relevant crushing document also primarily focuses on correcting mechanism, principle, method, can not support such
The further expansion and application of hard grinding wheel.
Chinese invention patent " a kind of grinding wheel precise dressing automatic tool preset method and device " (publication number: CN106041740B)
A kind of grinding wheel precise dressing automatic tool preset method and device is disclosed, grinding wheel precise dressing automatic tool preset method includes following step
Rapid: step 1 acquires height of each point relative to sensor zero point on the surface of grinding wheel to be trimmed with sensor, to be repaired with determination
Highest point on whole wheel face；Step 2 turns to the highest point of grinding wheel to be trimmed opposite with trimmer in direction of feed
Position；Step 3 moves grinding wheel to be trimmed along direction of feed, until the highest point of grinding wheel to be trimmed and trimmer are in feeding side
Distance on axis is zero, and using this position as feed starting point；The invention is actually directly with the highest point of grinding wheel to be trimmed
It is the entire grinding wheel to be trimmed of basic point progress to knife, is a kind of pair of knife mode, improves grinding wheel to be trimmed to the precision of knife, but simultaneously
Without reference to the dressing method of grinding wheel.
Chinese invention patent " big abrasive grain diamond abrasive wheel dressing device and method " (publication number: CN102785167B) is open
A kind of big abrasive grain diamond abrasive wheel dressing device and method, it is related to a kind of wheel dresser and method, with solve due to
Big abrasive grain skive Radial mixing is larger and cannot be directly used to accurate grinding, it is necessary to replace fine grit grinding wheel and come in fact
The problem of existing subsequent accurate grinding, it includes two disks, two sleeve clamps, two shaft couplings, two sets of retarders and two motors,
A disk, the axis of disk and the axis perpendicular of grinding wheel are respectively arranged with positioned at the two sides of the axis of grinding wheel, and disk
The grinding face contact of end face and grinding wheel, each disk are mounted on a fixture, and each fixture is connect with a shaft coupling, each
Shaft coupling is connect with the output end of a retarder, and the input terminal of each retarder is connect with the output end of a motor；Method
Step are as follows: one, installation；Two, the Radial mixing for detecting big abrasive grain skive modifies completion after reaching requirement；However
The invention is used for the precise dressing of big abrasive grain skive, is not particularly suited for the application single layer of abrasive particles hard grinding wheel accurate repair
It is whole.
Summary of the invention
It is right the purpose of the present invention is in view of the above shortcomings of the prior art, providing a kind of hard grinding wheel precise dressing method
Monolayer superabrasive grinding wheel carries out efficient, accurate, practical finishing.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
A kind of hard grinding wheel precise dressing method, comprising the following steps:
1) preparation:
The relevant information of hard grinding wheel to be trimmed, including abrasive material, granularity are collected, and is searched corresponding to grinding wheel graininess according to national standard
Abrasive grain full-size D；
According to wheel grinding processed and applied demand, the expected circular runout target value A of grinding wheel is set；
Hard grinding wheel to be trimmed is installed on corresponding grinding machine, acquires wheel face circularity curve with displacement sensor.
2) analysis is handled:
The wheel face circularity curve that step 1) obtains is denoised, smoothing processing, extracts grinding wheel initial radial jitter values Y1；
If initial radial jitter values Y1 > D*40%, directly eliminate；
If initial radial jitter values Y1≤D*40%, first adjusts grinding wheel eccentricity, followed by double measurement wheel face circularity
Curve, and extract the secondary circular runout value Y2 of grinding wheel；
If secondary circular runout value Y2 > D*20%, grinding wheel, which does not have to be modified to can be directly used for roughly grinding, cuts use；If secondary
3) circular runout value Y2≤D*20%, then enter step.
3) micro finishing:
According to hard grinding wheel to be trimmed, suitable dressing tool is selected, and total trim amount is chosen between [Y2-A, Y2], every time
The amount of feeding is 1 ~ 5 μm, and is sequentially reduced.
4) quality evaluation:
When the accumulative finishing amount of feeding reaches Y2-A, wheel face circular runout value is tested, Y3 is denoted as,
If surface circular runout value Y3 < A, finishing terminates；
If surface circular runout value Y3 >=A, continues step 3).
5) it shuts down.
Dressing tool described in step 3) is dressing diamond or point wheel dressing tool.
CBN grinding wheel is ground when carrying out inner circle, dressing tool carries out static finishing using dressing diamond；
When carrying out outer circle and flat stone mill CBN grinding wheel or skive, dressing tool carries out dynamic using point wheel dressing tool and repairs
It is whole.
The beneficial effects of the present invention are:
The hard grinding wheel precise dressing method has formulated single layer of abrasive particles grinding wheel precise dressing step, and that has distinguished grinding wheel applies model
Enclose, quantified the relationship of precise dressing and grinding wheel abrasive grain；The finished product of single layer of super hard grinding wheel is not only increased using the present invention
Rate improves the grinding wheel accuracy of form and position, and finishing is at low cost, operation is practical, efficient, is the superhard sand being worth promoting
Wheel sorting and precise dressing method.
Detailed description of the invention
Fig. 1 is flow chart of the invention.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily.
The present invention provides a kind of hard grinding wheel precise dressing methods, as shown in Fig. 1 flow chart.
The hard grinding wheel precise dressing method, comprising the following steps:
1) preparation:
The relevant informations such as abrasive material, the granularity of hard grinding wheel to be trimmed are collected, and search mill corresponding to grinding wheel graininess according to national standard
Grain full-size D；
According to wheel grinding processed and applied demand, the expected circular runout target value A of grinding wheel is set；
Hard grinding wheel to be trimmed is installed on corresponding grinding machine, acquires wheel face circularity curve with displacement sensor.
2) analysis is handled:
The wheel face circularity curve that step 1) obtains is denoised, smoothing processing, extracts grinding wheel initial radial jitter values Y1；
If initial radial jitter values Y1 > D*40%, directly eliminate；
If initial radial jitter values Y1≤D*40%, first adjusts grinding wheel eccentricity, followed by double measurement wheel face circularity
Curve, and extract the secondary circular runout value Y2 of grinding wheel；
If secondary circular runout value Y2 > D*20%, grinding wheel, which does not have to be modified to can be directly used for roughly grinding, cuts use；If secondary
3) circular runout value Y2≤D*20%, then enter step.
3) micro finishing:
According to hard grinding wheel to be trimmed, suitable dressing tool is selected, and total trim amount is chosen between [Y2-A, Y2], every time
The amount of feeding is 1 ~ 5 μm, and the amount of feeding is sequentially reduced when choosing every time.
In the present embodiment, dressing tool is dressing diamond or point wheel dressing tool.CBN grinding wheel is ground when carrying out inner circle,
Dressing tool carries out static finishing using dressing diamond；When carrying out outer circle and flat stone mill CBN grinding wheel or skive, repair
Whole tool carries out dynamic trimming using point wheel dressing tool.
4) quality evaluation:
When the accumulative finishing amount of feeding reaches Y2-A, wheel face circular runout value is tested, Y3 is denoted as,
If surface circular runout value Y3 < A, finishing terminates；
If surface circular runout value Y3 >=A, continues step 3).
5) it shuts down.
It is described in detail by taking 1A1-400*10*127mm plated diamond grinding wheel as an example below.
1) preparation.
Hard grinding wheel to be trimmed is 1A1-400*10*127mm plated diamond grinding wheel, granularity 60/70#, according to national standard
(GB/T6406-1996) searches maximum grit size D=250 μm corresponding to diamond grit 60/70#；According to wheel grinding
Application requirement, the expected diameter of setting grinding wheel jump target value A=5 μm；Grinding wheel is installed on cylindrical grinder (M1420), laser displacement is used
Sensor measurement wheel face circularity curve.
2) analysis is handled.
Wheel face circularity curve is denoised, smoothing processing, obtains grinding wheel initial radial jitter values Y1=68.0 μm,
D*20%=50 μm D*40%=100 μm < Y1 <, and it was found that wheel face circularity curve is in single spikes/low- points, illustrates the sand
Wheel abrasive material is in obvious eccentric state；Grinding wheel eccentricity is then adjusted, followed by double measurement wheel face circularity curve, and
Detection grinding wheel secondary circular runout value Y2=45 μm are then transferred to next step step 3) due to 250*20%=50 μm the < of Y2=45 again
Carry out micro finishing.
3) micro finishing.
Since the present embodiment is outer circle and flat stone mill skive, then dressing tool is moved using point wheel dressing tool
State finishing.It is modified using D125*2mm diamond point wheel dressing tool, total trim amount control is in Y2-A=40 μm, Y2=45 μm
Between, each amount of feeding chooses 3,2,1 μm, is sequentially reduced finishing；
4) quality evaluation.
When the accumulative finishing amount of feeding reaches 40 μm, test grinding wheel diameter jumps Y3=5.2 μm, the not up to expected diameter of wheel face
Jump target value A=5 μm；And then carry out the micro finishing of step 3) again, and by the minimum amount of feeding 1 μm continue the sand modified, then surveyed
Wheel surface circular runout value Y3 is 4.3 μm of A=5 μm <, and finishing terminates.
5) it shuts down.
It is observed after shutdown, discovery wheel face dressing accuracy, pattern are good.
The hard grinding wheel precise dressing method has formulated single layer of abrasive particles grinding wheel precise dressing step, has distinguished grinding wheel
Application range, the relationship for having quantified precise dressing and grinding wheel abrasive grain；Single layer of super hard grinding wheel is not only increased using the present invention
Yield rate, improve the grinding wheel accuracy of form and position, and modify that at low cost, operation is practical, efficient, be one and be worth promoting
Hard grinding wheel sorting and precise dressing method.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, various changes and improvements may be made to the invention without departing from the spirit and scope of the present invention, these changes
Change and improvement is both fallen within the scope of claimed invention.The claimed scope of the invention is by appended claims and is equal
Object defines.
Claims (3)
1. a kind of hard grinding wheel precise dressing method, which comprises the following steps:
1) preparation:
The relevant information of hard grinding wheel to be trimmed, including abrasive material, granularity are collected, and is searched corresponding to grinding wheel graininess according to national standard
Abrasive grain full-size D；
According to wheel grinding processed and applied demand, the expected circular runout target value A of grinding wheel is set；
Hard grinding wheel to be trimmed is installed on corresponding grinding machine, acquires wheel face circularity curve with displacement sensor；
2) analysis is handled:
The wheel face circularity curve that step 1) obtains is denoised, smoothing processing, extracts grinding wheel initial radial jitter values Y1；
If initial radial jitter values Y1 > D*40%, directly eliminate；
If initial radial jitter values Y1≤D*40%, first adjusts grinding wheel eccentricity, followed by double measurement wheel face circularity
Curve, and extract the secondary circular runout value Y2 of grinding wheel；
If secondary circular runout value Y2 > D*20%, grinding wheel, which does not have to be modified to can be directly used for roughly grinding, cuts use；If secondary
3) circular runout value Y2≤D*20%, then enter step；
3) micro finishing:
According to hard grinding wheel to be trimmed, suitable dressing tool is selected, and total trim amount is chosen between [Y2-A, Y2], every time
The amount of feeding is 1 ~ 5 μm, and is sequentially reduced；
4) quality evaluation:
When the accumulative finishing amount of feeding reaches Y2-A, wheel face circular runout value is tested, Y3 is denoted as,
If surface circular runout value Y3 < A, finishing terminates；
If surface circular runout value Y3 >=A, continues step 3)；
5) it shuts down.
2. a kind of hard grinding wheel precise dressing method according to claim 1, it is characterised in that: repaired described in step 3)
Whole tool is dressing diamond or point wheel dressing tool.
3. a kind of hard grinding wheel precise dressing method according to claim 2, it is characterised in that: grind CBN when carrying out inner circle
Grinding wheel, dressing tool carry out static finishing using dressing diamond；
When carrying out outer circle and flat stone mill CBN grinding wheel or skive, dressing tool carries out dynamic using point wheel dressing tool and repairs
It is whole.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910648835.0A CN110181404B (en) | 2019-07-18 | 2019-07-18 | Precise dressing method for superhard grinding wheel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910648835.0A CN110181404B (en) | 2019-07-18 | 2019-07-18 | Precise dressing method for superhard grinding wheel |
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| CN110181404B CN110181404B (en) | 2020-07-31 |
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Citations (7)
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| US5472371A (en) * | 1991-07-09 | 1995-12-05 | Hitachi, Ltd. | Method and apparatus for truing and trued grinding tool |
| JP2004174640A (en) * | 2002-11-26 | 2004-06-24 | Nissan Motor Co Ltd | Grinding wheel for superfinishing and grinding method |
| CN104990503A (en) * | 2015-07-16 | 2015-10-21 | 郑州磨料磨具磨削研究所有限公司 | Grinding wheel external circle run-out detection method based on laser displacement sensor |
| CN106002633A (en) * | 2016-05-24 | 2016-10-12 | 东北大学 | Composite finishing method for ceramic bond CBN grinding wheel |
| CN107756252A (en) * | 2017-10-18 | 2018-03-06 | 郑州磨料磨具磨削研究所有限公司 | A kind of grinding wheel dressing method and device based on hydrodynamic driving |
| CN108747824A (en) * | 2018-06-19 | 2018-11-06 | 湖南大学 | A kind of full-automatic compound finishing integrated control method of omnipotent abrasive wheel |
| CN108838890A (en) * | 2018-06-19 | 2018-11-20 | 郑州磨料磨具磨削研究所有限公司 | A kind of diamond grinding wheel dressing method |
-
2019
- 2019-07-18 CN CN201910648835.0A patent/CN110181404B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5472371A (en) * | 1991-07-09 | 1995-12-05 | Hitachi, Ltd. | Method and apparatus for truing and trued grinding tool |
| JP2004174640A (en) * | 2002-11-26 | 2004-06-24 | Nissan Motor Co Ltd | Grinding wheel for superfinishing and grinding method |
| CN104990503A (en) * | 2015-07-16 | 2015-10-21 | 郑州磨料磨具磨削研究所有限公司 | Grinding wheel external circle run-out detection method based on laser displacement sensor |
| CN106002633A (en) * | 2016-05-24 | 2016-10-12 | 东北大学 | Composite finishing method for ceramic bond CBN grinding wheel |
| CN107756252A (en) * | 2017-10-18 | 2018-03-06 | 郑州磨料磨具磨削研究所有限公司 | A kind of grinding wheel dressing method and device based on hydrodynamic driving |
| CN108747824A (en) * | 2018-06-19 | 2018-11-06 | 湖南大学 | A kind of full-automatic compound finishing integrated control method of omnipotent abrasive wheel |
| CN108838890A (en) * | 2018-06-19 | 2018-11-20 | 郑州磨料磨具磨削研究所有限公司 | A kind of diamond grinding wheel dressing method |
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