CN107486794B - A kind of ceramics grooving-is turned a millstone composite wheel and its processing method - Google Patents
A kind of ceramics grooving-is turned a millstone composite wheel and its processing method Download PDFInfo
- Publication number
- CN107486794B CN107486794B CN201710975829.7A CN201710975829A CN107486794B CN 107486794 B CN107486794 B CN 107486794B CN 201710975829 A CN201710975829 A CN 201710975829A CN 107486794 B CN107486794 B CN 107486794B
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- China
- Prior art keywords
- grooving
- millstone
- grinding wheel
- wheel
- flange
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
- B24D7/18—Wheels of special form
-
- 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
- B24B27/00—Other grinding machines or devices
- B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
Abstract
A kind of ceramic grooving-proposed by the present invention is turned a millstone composite wheel and its processing method, and composite wheel includes two parts, and first part is grooving grinding wheel, and second part is grinding wheel of turning a millstone.Grooving-big surplus the plane of combined type of turning a millstone, which is carried out, the present invention be directed to hard brittle materials such as engineering ceramics efficiently removes processing, used machining tool, its by turn a millstone grinding wheel during feeding to the push effect of flange, the characteristics of easily being extended using the hard brittle materials crackle such as ceramics, the thing that degenerates is good thing, has the characteristics that be simple to manufacture, is low in cost, high in machining efficiency.
Description
Technical field
The present invention proposes that a kind of ceramic grooving-is turned a millstone composite wheel and its processing method, is related specifically to expand based on crackle
The grooving-of exhibition effect is turned a millstone combined type plane engineering ceramics (such as SiC, AL2O3、Si3N4、ZrO2, mullite etc.) etc. hard brittle materials
The method of big surplus removal material.
Background technique
Currently, it is used to be ground in the market or the grinding wheel of the hard brittle materials such as grooving engineering ceramics is many kinds of, it is big by bonding agent
Cause can be divided into vitrified abrasive, metal wheel, resin wheel and electroplating abrasion wheel etc., and for entirety, these grinding wheel functions are more single
One, or to be exclusively used in the grinding wheel of grooving, or to be exclusively used in skive, cubic boron nitride abrasive wheel of grinding etc.；And it uses
Range is wider, both can be used for the processing of cylindrical surface ceramic stones etc., can be used for the processing of plane ceramic etc..Currently, tree
The hot spot of rouge binding agent sand wheel, which concentrates on, develops novel phenolic resins to improve the heat resistance of such grinding wheel, metallic bond sand
The research hotspot of wheel is then concentrated on by improving technique to improve metallic bond to the holding power of diamond abrasive and finishing energy
Power, compared to two kinds of grinding wheels above-mentioned, vitrified bonded grinding wheel performance is the most superior, and research hotspot is to improve technique to reduce
Oxidative phenomena in sintering process, and further increase service performance etc..
Ceramic grooving-based on crack propagation effect turn a millstone combined type plane machining technology be rose in recent years one kind it is low
The efficient Ceramic manufacturing mode of cost.Armored force engineering institute Tian Xinli, Wang Long seminar expands further investigation to this.It should
Method using the ceramic material characteristic that crackle easily extends under external load function realize material removal process, have it is low at
The features such as sheet, high efficiency, equipment is simple, strong operability, mainly uses this method processing ceramic outer circle early period, rear to develop into one again
The coarse working techniques of kind ceramic flat surface.Using the technology processing ceramic need first grooving, after turn a millstone, there is no on Vehicles Collected from Market can be same
The grinding wheel of both functions of Shi Shixian.
Summary of the invention
The purpose of the invention is to overcome the shortcoming of prior art, propose that a kind of ceramic grooving-is turned a millstone complex sand
Wheel and its processing method, such composite wheel for integrating grooving, two kinds of functions of turning a millstone realize grooving-and turn a millstone twice work
Sequence is combined into one, and is had the characteristics that reduce abrasion of grinding wheel, is reduced processing cost, improve processing efficiency, be easily achieved, can be into one
Step pushes the practical implementation of engineering ceramics.
A kind of ceramics grooving-is turned a millstone composite wheel comprising turn a millstone grinding wheel and grooving grinding wheel；
Wherein, the grinding wheel of turning a millstone is integrally formed by tapered segment and columnar part, and the top of tapered segment is disc, and
The coning angle of cone is 45 °；The outer surface of tapered segment and columnar part is coated with diamond particles, granularity 90-110
Mesh；Grooving grinding wheel outer surface is coated with diamond particles；
The disc of the grinding wheel tapered segment of turning a millstone is connect with grooving grinding wheel by handle, and the diameter of handle is greater than 13mm, and pushes away
Grinding abrasive disk, handle and grooving grinding wheel three are fixed by hex bolts.
Further, it is processed using above-mentioned ceramic grooving-composite wheel of turning a millstone, content are as follows: pass through grooving grinding wheel
Grooving, the flange for forming grooving crack propagation under the subsequent push effect of grinding wheel of turning a millstone are final to drive crackle networking broken
Remove flange.
Further, the above-mentioned ceramic grooving-based on crack propagation effect is turned a millstone composite wheel processing method comprising with
Lower step:
Step 1, hard brittle material plate is fixed, is needed using grooving grinding wheel by processing along the side X on hard brittle material plate
To first of flange of self-assembling formation after groove is processed, set flange height as h, flange wall thickness be b；
Step 2, composite wheel feeds a slot pitch l along Y-direction, then processes groove in X direction and form second flange；
Continuation is advanced along Y-direction again to a slot pitch l, and forms third road flange to groove is processed along X, is persistently walked according to this path
Knife continues to complete remaining grooving and flange processing, until completing final processing.
Effect is preferable, l=s- (n+1) b-n* ω (n=0,1,2), and in formula, s is that composite wheel cylinder and circular conical surface are handed over
To the distance of grooving grinding wheel at boundary, ω is groove width, n 0,1 or 2.
Effect is preferable, and b is 2~5mm, and h is 1.5~6mm.
Effect is preferable, and the ceramics grooving-is turned a millstone linear velocity > 20m/ second of composite wheel, and feed speed v is 1.5mm/
Min~16mm/min.
The beneficial effects of the present invention are:
The present invention be the ceramic grooving-based on crack propagation effect turn a millstone combined type plane surface processing method specific implementation sand
Wheel tool proposes a kind of composite wheel for integrating grooving, two kinds of functions of turning a millstone, and having reduces abrasion of grinding wheel, reduces processing
Cost, the characteristics of improving processing efficiency, being easily achieved.
By turn a millstone grinding wheel during feeding to the push effect of flange, easily expanded using the hard brittle materials such as ceramics crackle
The characteristics of exhibition, the thing that degenerates are good thing, use composite wheel slot portion grooving groove first, grooving is in the process in ledge surface and bottom
Portion forms many micro-cracks, and the grinding wheel conical surface for being then within middle part makes crack propagation in the case where feeding push effect, final to drive
Crackle networking is broken to remove flange, is eventually positioned at the periphery grinding residual surface at grinding wheel rear portion.To reduce grinding wheel mill
Damage reduces processing cost.
Detailed description of the invention
Fig. 1 is turn a millstone grinding wheel grooving grinding wheel and turn a millstone grinding wheel upper surface distance s, groove width schematic diagram；
Fig. 2 is thickness of flange h and width b schematic diagram；
Fig. 3 pictorial diagram of the present invention；
Fig. 4 a-c is processing method schematic illustration of the invention；
Specific embodiment
Below by specific embodiment and attached drawing 1-3 and Fig. 4 a-c, technical solution of the present invention is made further
It is described in detail.
The present invention proposes a kind of flat applied to the big surplus of combined type of turning a millstone of the engineering ceramics grooving-based on crack propagation effect
Face removes the composite wheel of processing method, is the larger surplus rough machining method processing for hard brittle materials such as engineering ceramics
Tool, which is characterized in that realize that grooving-two procedures of turning a millstone are combined into one, front grinding wheel is responsible for grooving, and rear portion grinding wheel is being pushed
Make crack propagation under effect, final to drive crackle networking is broken to remove flange, circumferential surface and grinding positioned at grinding wheel rear portion
Residual surface.
The ceramic grooving-based on crack propagation effect is turned a millstone combined type plane surface processing method, is specifically included following
Step:
(1) it needs to process parallel ditch along a direction X using skive piece by processing on plane ceramic workpiece
Slot forms flange, and flange height h, flange wall thickness are b, as shown in Figure 1；To guarantee that processing effect, flange height h should be greater than
1.5mm, when groove depth is larger, the mode that the feeding of multiple grooving can be used is processed, to avoid cutting abrasive wheel excessive wear
Scrap and consider that construction safety, single cutting groove depth h ' are necessarily less than 6mm, and groove depth is too small will affect processing efficiency, because
H ' optimum value should be between 1.5mm~6mm when this single grooving；Flange wall thickness b should be between 2mm-5mm；The cutting sand
Wheel is conventional general plated diamond grinding wheel piece, and when use is mounted directly on composite wheel；
After (2) first knives (refer to grinding wheel setting in motion to cut out first of slot completely) are covered, composite wheel is along grinding wheel spindle
To one distance l of feeding, then groove is processed in reverse direction and is formed first.After second knife is covered, along grinding wheel axial feed
One distance l, then process groove along former direction and form second, continue feed according to this path.
(3) turning a millstone and (doing radial feed movement) for single track flange is carried out with grinding wheel of turning a millstone；When turning a millstone, for the company for guaranteeing processing
Continuous property, grinding wheel of turning a millstone is with revolving speed n (r/min) rotation, and grinding wheel conical end face contact flange, grinding wheel of turning a millstone pushes flange, to flange
Active force can be decomposed into the power F perpendicular to flangevAnd Fh, remove flange and rely primarily on FvIt turns a millstone employed in the step sand
Wheel is the column grinding wheel that middle part is equipped with handle, and not enough the trembling for the grinding wheel that causes to turn a millstone of handle radial rigidity, described when to avoid turning a millstone
Shank diameter should be greater than 13mm；The cylinder of the grinding wheel of turning a millstone and circular cone end face are coated with diamond particles, and granularity is 100 mesh or so,
The diameter of grinding wheel of turning a millstone is 100mm or so, to guarantee that removal effect, the rotation linear velocity for grinding wheel circumference abrasive grain of turning a millstone should reach
20m/s or more；Meanwhile consider to turn a millstone wheel life and safety, and guarantee processing effect, the speed v be 1.5mm/min~
16mm/min；In the process, flange largely removes under the grinding and push effect for grinding wheel of turning a millstone, simultaneously because abrasive wheel end face and
Outer round surface has sand grains, so excircle part is ground to surface has been pushed, and makes workpiece while flange is pushed in end face
Surface quality meets basic demand, overall processing process as shown in figure 4, include grooving as shown in fig. 4 a, cone face process such as Fig. 4 b
Shown, cylinder is processed as illustrated in fig. 4 c；Wherein, ceramic wafer to be processed is marked labeled as 1, grooving grinding wheel labeled as 2, grinding wheel of turning a millstone
It is 3.
(4) removal of flange is completed by rationally setting l and b, to guarantee removal effect, l and b should meet: l=s- (n+
1) b-n* ω (n=0,1,2), in formula, s is composite wheel cylinder at a distance from circular conical surface intersection to grooving grinding wheel, and ω is slot
Width, n as shown in Figure 1 are positive integer, consider that practical b and s, n only take 0,1,2.
(5) continue to continue to complete grooving and processing flange according to step (2).Until completing final processing.The work
Journey ceramic workpiece material may include silicon nitride, aluminium oxide, zirconium oxide, silicon carbide and mullite.
Cardinal principle of the invention is:
The tool is substantially that grooving grinding wheel and grinding wheel of turning a millstone are installed on a handle.Utilize micro-crack defect in secret
For ceramic flange in the push effect by circular conical surface, easily generation crackle, which interweaves, extends the material removal for realizing major part,
While the diamond abrasive grain on cylindrical surface of turning a millstone realizes grinding removal to flange nubbin, so as to improve suface processing quality.
Claims (6)
- The composite wheel 1. a kind of ceramics grooving-is turned a millstone, which is characterized in that including grinding wheel and the grooving grinding wheel of turning a millstone；Wherein, the grinding wheel of turning a millstone is integrally formed by tapered segment and columnar part, and the top of tapered segment is disc, and circular cone The coning angle of body is 45 °；The outer surface of tapered segment and columnar part is coated with diamond particles, and granularity is 90-110 mesh；Institute It states grooving grinding wheel outer surface and is coated with diamond particles；The disc of the grinding wheel tapered segment of turning a millstone is connect with grooving grinding wheel by handle, and the diameter of handle is greater than 13mm, and sand of turning a millstone Wheel, handle and grooving grinding wheel three are fixed by hex bolts.
- The composite wheel processing method 2. a kind of ceramic grooving-based on crack propagation effect is turned a millstone, which is characterized in that utilize right It is required that ceramic grooving-described in 1 is turned a millstone, composite wheel is processed, content are as follows: by grooving grinding wheel grooving, forms grooving Flange crack propagation under the subsequent push effect of grinding wheel of turning a millstone, it is final to drive crackle networking is broken to remove flange.
- 3. the ceramic grooving-based on crack propagation effect is turned a millstone composite wheel processing method as claimed in claim 2, feature It is, comprising the following steps:Step 1, hard brittle material plate is fixed, needs to add in X direction using grooving grinding wheel by processing on hard brittle material plate Work goes out first of flange of self-assembling formation after groove, set flange height as h, flange wall thickness be b；Step 2, composite wheel feeds a slot pitch l along Y-direction, then processes groove in X direction and form second flange；Continue It is advanced again along Y-direction to a slot pitch l, and processes groove in X direction and form third road flange, persistently walked according to this path Knife continues to complete remaining grooving and flange processing, until completing final processing.
- 4. the ceramic grooving-based on crack propagation effect is turned a millstone composite wheel processing method as claimed in claim 3, feature Be, l=s- (n+1) b-n* ω, in formula, s be turn a millstone grinding wheel columnar part and tapered segment intersection to grooving grinding wheel Distance, ω are groove width, n 0,1 or 2.
- 5. the ceramic grooving-based on crack propagation effect is turned a millstone composite wheel processing method as claimed in claim 3, feature It is, b is 2~5mm, and h is 1.5~6mm.
- 6. the ceramic grooving-based on crack propagation effect is turned a millstone composite wheel processing method as claimed in claim 2, feature It is, the ceramics grooving-is turned a millstone linear velocity > 20m/s of composite wheel, and feed speed v is 1.5mm/min~16mm/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710975829.7A CN107486794B (en) | 2017-10-19 | 2017-10-19 | A kind of ceramics grooving-is turned a millstone composite wheel and its processing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710975829.7A CN107486794B (en) | 2017-10-19 | 2017-10-19 | A kind of ceramics grooving-is turned a millstone composite wheel and its processing method |
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| Publication Number | Publication Date |
|---|---|
| CN107486794A CN107486794A (en) | 2017-12-19 |
| CN107486794B true CN107486794B (en) | 2019-03-19 |
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| CN201710975829.7A Expired - Fee Related CN107486794B (en) | 2017-10-19 | 2017-10-19 | A kind of ceramics grooving-is turned a millstone composite wheel and its processing method |
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| CN115847198B (en) * | 2023-02-28 | 2023-05-26 | 山东硅元新型材料股份有限公司 | Method for machining inner cavity of square, hollow and open ultraprecise ceramic guide rail |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003326465A (en) * | 2002-05-09 | 2003-11-18 | Nakano Seisakusho:Kk | Grooving grinding wheel and composite grinding wheel with the same |
| CN201940872U (en) * | 2010-09-03 | 2011-08-24 | 天津市泽宝水泥制品有限公司 | Combined cutter for first-phase prestressed concrete pipe mouthing |
| CN103551949B (en) * | 2013-09-30 | 2015-12-02 | 田欣利 | A kind of method utilizing edges broken and sharp angle effect squash type processing ceramic cylindrical |
| CN103692364B (en) * | 2013-12-10 | 2016-02-10 | 浙江恒成硬质合金有限公司 | A kind of top hammer composite wheel |
| CN203875749U (en) * | 2014-05-29 | 2014-10-15 | 绵阳市东辰磁性材料有限公司 | Combined grinding wheel device for composite grinding |
| GB201521706D0 (en) * | 2015-12-09 | 2016-01-20 | Univ Northumbria Newcastle | Composite machining tool |
| CN106799665B (en) * | 2016-11-30 | 2018-08-28 | 田欣利 | Ceramics based on crack propagation effect cut-turn a millstone combined type plane surface processing method |
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