CN106363493B - A method of reducing processing sapphire product rejection rate - Google Patents
A method of reducing processing sapphire product rejection rate Download PDFInfo
- Publication number
- CN106363493B CN106363493B CN201510434027.6A CN201510434027A CN106363493B CN 106363493 B CN106363493 B CN 106363493B CN 201510434027 A CN201510434027 A CN 201510434027A CN 106363493 B CN106363493 B CN 106363493B
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- CN
- China
- Prior art keywords
- grinding wheel
- sapphire
- stick
- knife
- abrasion
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Classifications
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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
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/02—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements
-
- 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
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/16—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation taking regard of the load
- B24B49/165—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation taking regard of the load for grinding tyres
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
The present invention provides a kind of method for reducing processing sapphire product rejection rate, including using the stick point of grinding wheel stick to carry out grinding to the groove on sapphire on numerically-controlled machine tool, the method includes realizing the wear monitoring to grinding wheel stick after every a piece of sapphire product of processing by the method for comparing the long data of knife.The long difference of initial knife when specifically using the knife length compared after processing every sapphire and undressed sapphire and the size between the abrasion permissible level being previously set determine whether to continue using a piece of sapphire under grinding wheel stick processing come automatic.Using the method in the present invention, sapphire product can be down to 0 because of scrappage caused by the bad problem of grinding wheel stick.
Description
Technical field
The present invention relates to a kind of methods of the scrappage of reduction CNC (numerically-controlled machine tool) processing product of sapphire containing groove.
Background technique
The product of sapphire containing groove refers to that, containing reeded sapphire panel in its plate face, the groove is combined by CNC
The grinding of grinding wheel stick is processed.The length of grinding wheel stick substantially 30~40mm, shape are approximately that the pencil after pencil sharpener is cut is made
Type, wherein taper tip part be grinding wheel stick stick point, for directly with sapphire Grinding Contact.In the prior art, it is all made of
The method of artificial monitoring grinding wheel rod milling damage finds and replaces grinding wheel in time, but has multiple stations (such as 8 on every numerically-controlled machine tool
It is a), and each worker needs while monitoring several (such as 10~20) machines, and the indigo plant that every grinding wheel stick can be processed is precious
The piece number of stone panel is limited (for example, more than ten), because artificial control lacks timeliness and validity, every a piece of sapphire of processing
Grinding wheel will appear different degrees of abrasion after product, thus the grinding wheel stick (cutter) of inordinate wear is easily caused to process sapphire
Critical dimensions when panel in processing cannot be guaranteed, and resulting sapphire product can only scrap processing.This is also manually to supervise
The reason of scrappage of the sapphire panel of control grinding wheel rod milling damage is up to 10~20%.This is bound to cause artificial waste and machine
The waste in working hour, and increase the cost input of raw material (sapphire material is expensive).In addition, this method is not only to cause
Sapphire product rejection rate is high, and the labor intensity of worker is high, and recruitment cost is big.
Therefore, there is a need in the field to provide a kind of methods for solving the problems, such as the processing high scrappage of the product of sapphire containing groove.
Summary of the invention
The present invention provides a kind of method for solving the problems, such as the processing high scrappage of the product of sapphire containing groove, specifically a kind of to make
Sapphire product because of scrappage can minimize caused by the bad problem of grinding wheel stick method.
Therefore, the present invention provides a kind of method for reducing processing sapphire product rejection rate, including adopts on numerically-controlled machine tool
Grinding is carried out to the groove on sapphire with the stick point of grinding wheel stick, the method includes after every a piece of sapphire product of processing
The wear monitoring to grinding wheel stick is realized by the method for comparing the long data of knife.
In a kind of specific embodiment, a length of 80~200mm of knife.It is preferred that a length of 100~150mm of knife.
In the present invention, the long move distance for referring to grinding wheel stick Z-direction on numerically-controlled machine tool of knife.When the undressed any one piece of indigo plant of grinding wheel stick
When gem products, the initial long data of knife be minimum, when using its process sapphire product after, because grinding wheel stick grinding thus it is every
Knife length after processing one piece of sapphire is gradually elongated.Therefore, in the present invention, the long data of knife of used grinding wheel stick are all larger than original
The long data of beginning knife.
In a kind of specific embodiment, the method includes typings to wear permissible level；Record undressed sapphire
When initial knife it is long, re-record processing every sapphire after knife it is long, compare the latter and the former difference and the abrasion permission
Size between numerical value；The grinding wheel stick is stopped using if the difference is greater than abrasion permissible level, if the difference is less than abrasion and permits
Perhaps numerical value then continues to use a piece of sapphire under grinding wheel stick processing.
The present inventor considers the abrasion condition by monitoring grinding wheel stick automatically first to solve the problems, such as this, but sand
The length of wheel stick point is inconvenient directly to be measured, and the degree of wear for processing every sapphire grinding wheel stick is not identical,
Even if thus direct monitoring processing is every a piece of sapphire when time abrasion loss, it can not conclude whether the grinding wheel stick can also continue to make
With.Inventor considers that (it is a conversion relevant to the length of grinding wheel stick and grinding wheel rod milling damage by measurement knife length in turn
Data afterwards) and the relatively size pass between the long difference long with initial knife of knife after grinding and " wearing permissible level " every time
System, comparison and judgement after being processed by every sapphire determine whether the grinding wheel stick should continue to use, to solve completely
Determined because grinding wheel rod milling consume it is excessive due to cause its process sapphire scrap of the product the technical issues of.
In a kind of specific embodiment, the abrasion permissible level is 0.03~0.08mm.Preferably, the abrasion
Permissible level is 0.05mm.
In a kind of specific embodiment, when which is greater than abrasion permissible level, the grinding wheel stick and police are stopped using
Show and operator is reminded to replace grinding wheel stick.In this way, can play the role of monitoring in time to grinding wheel stick on CNC, it is also prevented from some on CNC
Station can not work for a long time because grinding wheel is not replaced in time.
In a kind of specific embodiment, the long data of knife are detected by machine tool setting gauge.
In a kind of specific embodiment, the method also includes recording the sapphire product of the every grinding wheel stick processing longevity
It orders, its life value increases by 1 after same root grinding wheel stick one piece of sapphire of every processing.
Specific steps involved in the method for the present invention include: to be automatically saved by the long data of the initial knife of machine tool setting gauge inspection
Grinding wheel stick service life, the long initial value of knife and attrition value calculation are set in the case where setting variable, in system, abrasion loss monitors number
Value (abrasion permissible level), grinding wheel stick life counter mode.One flake products of every production detect abrasion of grinding wheel value, mill using tool setting gauge
Damage value is compared with initial value, and when attrition value > abrasion loss monitoring data, system prompt grinding wheel stick serious wear please replace sand
Take turns stick, caused by avoiding because of abrasion of grinding wheel workpiece scrap with it is bad.
By the above variate-value and calculation, it is every processing one product knife is once determined grinding wheel abrasion loss whether
It within normal range (NR), less than the abrasion permissible level then normal process of setting, is greater than the set value, lathe, which stops processing, simultaneously alarms
Prompt needs to change grinding wheel.
Abrasion of grinding wheel amount of the present invention monitoring after primary setting can effective monitoring abrasion of grinding wheel amount, including:
1: the initial long record (#551) of knife
2: the long numerical value of knife (#552) after abrasion is updated after one flake products of every processing
3: calculating the long difference (#552-#551=#553) long with initial knife of abrasion knife
4: numerical value judgement calculates (=IF (ABS#553GE0.04)) GOTO66, wherein 0.04 is some specific embodiment
The abrasion permissible level of middle setting
5: prompting mode #553LT 0.04, grinding wheel rod milling damage normally continues to process sapphire product with it
N66#553 GE 0.04, grinding wheel rod milling damage is exceeded, prompts replacement grinding wheel stick
By the above variate-value and calculation, it is every processing one product knife is once determined grinding wheel abrasion loss whether
Within normal range (NR), it is less than setting attrition value then normal process, is greater than the set value then lathe and stops processing and warning note replacement
Grinding wheel.
Using the method in the present invention, sapphire product can be down to because of scrappage caused by the bad problem of grinding wheel stick
0。
Specific embodiment
The present invention is illustrated by following embodiment, but protection scope of the present invention is not limited in following embodiments,
Its protection scope is subject to claims.
Embodiment 1
In the present embodiment, for the sapphire wafer processed having a size of 20 × 20 × 1.5mm, one plate face is plane, but
Four periphery adjacent locations of plane are provided with the U-type groove of indent, the U that these top widths are 2mm, bottom width is 0.4mm
Type groove is exactly to be obtained using CNC and grinding wheel stick grinding.The shape of medium plain emery wheel stick of the present invention is after being cut using pencil sharpener
Pencil-type, be boart boart in the lowermost tip location, for directly being contacted with sapphire wafer, and grinding wheel stick
Upper end is fixed on CNC.
Machine differentiates that result is grinding wheel stick " normal wear " in the present embodiment, a piece of blue precious under the grinding wheel stick can be used to process
Stone.
Specific steps are as follows:
1, new grinding wheel stick is on lathe, service life value zero, and the long abrasion of land-value model, abrasion reduced value are zeroed
Example: grinding wheel service life record: #601=0；Land-value model length/processing knife is long: #551=0, #552=0；Abrasion pair
Ratio, #553=0；
2, tool setting gauge records initial knife length and abrasion knife is long
Example: #551=Z126.68, #552=Z126.68
3, it processes after 1 flake products to knife, it is long to update abrasion knife, and record grinding wheel access times
Example: #552=Z126.695, #601=1；
4, the judgement of abrasion numerical value calculates
Example: #553=#552-#551, calculated result: 0.015=126.695-126.68；
5, numerical value is worn after judgement processing
Example: IF [ABS#553 > 0.05] GOTO 66；
6, prompting mode
Example: attrition value within the allowable range, can continue to process.
Embodiment 2
In the present embodiment, the sapphire wafer size and processing method processed are same as Example 1.The present embodiment
Middle machine differentiates that result is grinding wheel stick " abrasion is exceeded ", and lathe stops using the grinding wheel stick to process sapphire.
Specific steps are as follows:
1, new grinding wheel stick is on lathe, service life value zero, and the long abrasion of land-value model, abrasion reduced value are zeroed
Example: grinding wheel service life record: #601=0；Land-value model length/processing knife is long: #551=0, #552=0；Abrasion pair
Ratio, #553=0；
2, tool setting gauge records initial knife length and abrasion knife is long
Example: #551=Z126.68, #552=Z126.68
3, it processes after 1 flake products to knife, it is long to update abrasion knife, and record grinding wheel access times
Example: #552=Z126.79, #601=1；
4, the judgement of abrasion numerical value calculates
Example: #553=#552-#551, calculated result: 0.11=126.79-126.68；
5, numerical value is worn after judgement processing
Example: IF [ABS#553 > 0.05] GOTO 66；
6, prompting mode
Example: abrasion is exceeded, prompts grinding wheel service life to arrive, buzzer warning please replace grinding wheel.
Skilled person will appreciate that the judging result in above-described embodiment 1 and embodiment 2 is exemplary results, it is existing
In real situation, the sapphire product of above-mentioned size in the processing present invention, the service life of a grinding wheel stick is about 10~20 pieces of indigo plants
Gem products.Certainly, be also not precluded under abnormal condition, grinding wheel rod milling cut after several piece sapphire product its be in it is non-just
Normal state of wear, this is all unrestricted in the present invention, as long as accomplishing that the knife for monitoring the grinding wheel stick after every piece of sapphire processing is long,
Even zero can will be minimized because of the probability that sapphire is scrapped caused by grinding wheel stick excessive wear.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of method for reducing processing sapphire product rejection rate, including using the stick point of grinding wheel stick to indigo plant on numerically-controlled machine tool
Groove on jewel carries out grinding, and the shape of the grinding wheel stick is the pencil moulding after pencil sharpener is cut, wherein taper tip
Part is the stick point of grinding wheel stick, and the method includes the methods after every a piece of sapphire product of processing by comparing the long data of knife
Realize the wear monitoring to grinding wheel stick, the knife length refers to the move distance of grinding wheel stick Z-direction on numerically-controlled machine tool, and described
Method specifically includes typing abrasion permissible level；Initial knife when recording undressed sapphire is long, re-records processing every blue treasured
Knife after stone is long, compares the size between the latter and the former difference and the abrasion permissible level；If the difference is greater than abrasion
Permissible level then stops using the grinding wheel stick, and it is next to continue to use grinding wheel stick processing if the difference is less than abrasion permissible level
Piece sapphire.
2. method according to claim 1, which is characterized in that a length of 80~200mm of knife.
3. method according to claim 2, which is characterized in that a length of 100~150mm of knife.
4. method according to claim 1, which is characterized in that the abrasion permissible level is 0.03~0.08mm.
5. method according to claim 4, which is characterized in that the abrasion permissible level is 0.05mm.
6. method according to claim 1, which is characterized in that when the difference is greater than abrasion permissible level, stop using the sand
It takes turns stick and warning alert operator replaces grinding wheel stick.
7. the method according to claim 1~any one of 3, which is characterized in that detect knife long number by machine tool setting gauge
According to.
8. the method according to claim 1~any one of 3, which is characterized in that the method also includes recording every sand
The sapphire product for taking turns stick is processed the service life, its life value increases by 1 after same root grinding wheel stick one piece of sapphire of every processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510434027.6A CN106363493B (en) | 2015-07-22 | 2015-07-22 | A method of reducing processing sapphire product rejection rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510434027.6A CN106363493B (en) | 2015-07-22 | 2015-07-22 | A method of reducing processing sapphire product rejection rate |
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| Publication Number | Publication Date |
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| CN106363493A CN106363493A (en) | 2017-02-01 |
| CN106363493B true CN106363493B (en) | 2019-01-29 |
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| CN201510434027.6A Active CN106363493B (en) | 2015-07-22 | 2015-07-22 | A method of reducing processing sapphire product rejection rate |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL116667A0 (en) * | 1996-01-03 | 1996-05-14 | Omat Ltd | Apparatus and method for cnc machine tooling |
| JP2706420B2 (en) * | 1993-12-27 | 1998-01-28 | 村田機械株式会社 | Method and apparatus for correcting tool edge position of NC machine tool |
| CN202155778U (en) * | 2011-06-01 | 2012-03-07 | 张文锦 | Automatic grinding wheel abrasion detecting device |
| CN202780831U (en) * | 2012-09-26 | 2013-03-13 | 南阳华祥光电科技有限公司 | Laser detection device based on computerized numerical control (CNC) double cutter head size on-line automatic measurement |
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