CN103264359B - Micro-drill lip half fine grinding resin wheel and preparation method thereof - Google Patents
Micro-drill lip half fine grinding resin wheel and preparation method thereof Download PDFInfo
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- CN103264359B CN103264359B CN201310162107.1A CN201310162107A CN103264359B CN 103264359 B CN103264359 B CN 103264359B CN 201310162107 A CN201310162107 A CN 201310162107A CN 103264359 B CN103264359 B CN 103264359B
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Abstract
The invention belongs to micro-brill manufacture field, particularly relate to and a kind of the micro-brill drill lip used man-hour micro-drill lip half fine grinding resin wheel carrying out grinding and preparation method thereof is added to PCB, a kind of micro-drill lip half fine grinding resin wheel, comprise the abrasive material be arranged on matrix, described abrasive material is prepared from by the raw material of following weight percentage: phenol-formaldehyde resin powder 13.21% ~ 19.05%, diamond 45% ~ 54%, copper powder 28.33% ~ 35.95%, phenolic resins wetting agent 2% ~ 5%, cryolite powder 3% ~ 8%, make the present invention only need when using first by slight for surface reconditioning, reconditioning quality can be reduced, save consumptive material, reduce the deformation extent of emery wheel, improve the service life of emery wheel, make operator can reduce finishing number of times to emery wheel in use, enhance productivity, reduce work fatigue intensity.
Description
Technical field
The invention belongs to micro-brill manufacture field, particularly relate to and a kind of the micro-brill drill lip used man-hour micro-drill lip half fine grinding resin wheel carrying out grinding and preparation method thereof is added to PCB.
Background technology
Produce the enterprise of PCB carbide alloy micro drill, the consumptive material of its capital equipment is emery wheel, emery wheel in operation process its abrasive particle because continue can be progressively broken and come off with machined material friction, therefore real-time feed compensation will be carried out to it man-hour adding, the instability of product surface quality and machining accuracy is caused with without cutting increase, waste a large amount of manpowers in this process, add employee's work fatigue intensity, and be easier to produce defective products, and due to the particularity of micro-brill drill lip grinding process, when using emery wheel common on market to produce, often some the grinding-wheel grinder bed of material utilize less than, emery wheel just cannot employ, make the service life of emery wheel short, waste is serious, cause the increase of production cost.
Summary of the invention
The object of the present invention is to provide and a kind of the micro-brill drill lip used man-hour micro-drill lip half fine grinding resin wheel carrying out grinding and preparation method thereof is added to PCB, to solve the existing deficiency for carrying out abrasive material material and basal body structure in the emery wheel technology of grinding to micro-brill drill lip of processing PCB, and the problem that the emery wheel service life caused is short, grinding force is weak.
The technical solution adopted in the present invention is:
A kind of micro-drill lip half fine grinding resin wheel, comprise the abrasive material be arranged on matrix, described abrasive material is prepared from by the raw material of following weight percentage: phenol-formaldehyde resin powder 13.21% ~ 19.05%, diamond 45% ~ 54%, copper powder 28.33% ~ 35.95%, phenolic resins wetting agent 2% ~ 5%, cryolite powder 3% ~ 8%.
A preparation method for micro-drill lip half fine grinding resin wheel is as follows:
Step 1), grinding wheel base body is carried out turning and Drilling operation by drawing on lathe, during turning by base circumferential facing at interval depth difference be three stairsteppings of 0.2mm, after turning and drilling operating complete with alcohol by clear for matrix surface totally great, use oven for drying for subsequent use;
Step 2), first, by be the phenol-formaldehyde resin powder of 13.21% ~ 19.05% according to shared percetage by weight, the diamond of 45% ~ 54% and 28.33% ~ 35.95% copper powder mix and put into batch mixer and stir, mixing time is 120 ~ 170 minutes, then by according to shared percetage by weight be 2% ~ 5% phenolic resins wetting agent and 3% ~ 8% cryolite powder to join in the mixture of above-mentioned phenol-formaldehyde resin powder, diamond powder and copper powder again stir about 50 ~ 100 minutes;
Step 3), hydraulic press is heated to 280 DEG C, debugging hydraulic press parameter, cleaning mold simultaneously, the place of contact material in mould is made to keep clean, by the grinding wheel base body of dry for standby in step 1) and step 2) in the grinding-wheel grinder bed of material material that mixes put into mould, mould is pushed in the middle of press heating plate and loads onto thermocouple, allow heating plate slowly be pressed on mould, the temperature regulating heating plate is 260 DEG C ~ 290 DEG C, pressing cycle about 60 minutes;
Step 4), with lathe, finish turning is carried out to the shake out aluminium step of circle, end face, endoporus of the height heating the emery wheel suppressed, make corresponding mark on grinding wheel base body surface simultaneously;
Step 5), the finished product emery wheel machined in step 4) put into baking oven baking 8 ~ 10 hours, oven temperature controls at 150 DEG C ~ 170 DEG C, use of can installing after having toasted.
Beneficial effect of the present invention is:
The present invention uses new component formula processing abrasive material, by reducing compacting pore, reduce slag inclusion so that resin-oatmeal adheres to the surface of abrasive particle well, be beneficial to shaping, and keep the intensity of abrasive material to reach the abrasion resistance and hardness object that improve emery wheel, thus the finishing number of times of operator to emery wheel can be reduced when using of the present invention, enhance productivity, reduce work fatigue intensity, improve the service life of emery wheel, the present invention, owing to improve abrasion resistance and hardness, decreases coming off of abrasive particle, makes converted products precision improvement 0.005mm.
The present invention designs and grinding wheel base body periphery of the present invention turning is gone out three stairsteppings that gap depth difference is 0.2mm, and the external diameter of grinding wheel base body is reduced when used abrasive material thickness is constant, make the present invention only need when using first by slight for surface reconditioning, reconditioning quality can be reduced, save consumptive material, reduce the deformation extent of emery wheel, improve the service life of emery wheel.
Make compared with the emery wheel produced with using prior art, the present invention is by adopting new abrasive material material formula and processing method and new grinding wheel base body structure, make the emery wheel produced when the micro-brill drill lip used PCB machining carries out grinding, average life increases by 15%, consumables cost saves 8%, and the finishing number of times effectively reduced emery wheel, the service life of emery wheel in the single finishing cycle is doubled, namely former finishing emery wheel can process more than 2000 micro-drill bits, now use crushing provided by the invention once can process 4000 ~ 5000 micro-drill bits.
Accompanying drawing explanation
Fig. 1 is front view structural representation of the present invention.
Fig. 2 is rearview structural representation of the present invention.
Fig. 3 is A-A cross-sectional view of the present invention.
In figure: 1, matrix; 2, abrasive material; 3, the first cascaded surface; 4, second-order tread; 5, the 3rd cascaded surface.
Detailed description of the invention
Embodiment 1, gets phenol-formaldehyde resin powder 132.1g, diamond powder 540g, copper powder 277.9g, phenolic resins wetting agent 20g, cryolite powder 30g, and makes by the following method:
Step 1), grinding wheel base body 1 is carried out turning and Drilling operation by drawing on lathe, during turning, matrix 1 periphery is lathed three stairsteppings that gap depth difference is 0.2mm, after turning and drilling operating complete with alcohol by clear for matrix surface totally great, use oven for drying for subsequent use;
Step 2), 132.1g phenol-formaldehyde resin powder, 540g diamond powder, 277.9g copper powder mixed and put into batch mixer stir, mixing time is 120 ~ 170 minutes, then 20g phenolic resins wetting agent, 30g cryolite powder to be joined in the mixture of above-mentioned phenol-formaldehyde resin powder, diamond powder and copper powder again stir about 50 ~ 100 minutes;
Step 3), hydraulic press is heated to 280 DEG C, debugging hydraulic press parameter, cleaning mold simultaneously, the place of contact material in mould is made to keep clean, by the grinding wheel base body 1 of dry for standby in step 1) and step 2) in the grinding-wheel grinder bed of material 2 material that mixes put into mould, mould is pushed in the middle of press heating plate and loads onto thermocouple, allow heating plate slowly be pressed on mould, the temperature regulating heating plate is 260 DEG C ~ 290 DEG C, pressing cycle about 60 minutes;
Step 4), using lathe to carry out finish turning according to be shaked out by the height aluminium step of circle, end face, endoporus of drawing by heating the emery wheel that suppresses, making corresponding mark on grinding wheel base body 1 surface simultaneously;
Step 5), the finished product emery wheel machined in step 4) put into baking oven baking 8 ~ 10 hours, oven temperature controls at 150 DEG C ~ 170 DEG C, use of can installing after having toasted.
Matrix 1 periphery being processed into three stairsteppings be made up of the first cascaded surface 3, second-order tread 4 and the 3rd cascaded surface 5, is to make full use of abrasive material 2.Concrete first the grinding-wheel grinder bed of material 2 reconditioning of that side relative with three ladders of matrix 1 periphery is gone out an inclined-plane consistent with the gradient of three ladders in use, then with the micro-drill lip of this angular surface grinding, evenly abrasive material 2 can be used downwards along this inclined-plane, till being used by abrasive material 2 and appearing basic material during grinding.And the plain wheel using prior art to manufacture first also will go out an inclined-plane in the side reconditioning of abrasive material, but because its base circumferential face section is straight line, so this inclined-plane that reconditioning goes out on plain wheel in use can be very fast crossing with base circumferential face, emery wheel is caused to be scrapped, the micro-drill lip of grinding can not be continued, this fashion has larger a part of abrasive material not used, and causes waste.Compared with the plain wheel using prior art to manufacture, when using the abrasive material 2 materials processing emery wheel of identical weight, micro-drill lip provided by the present invention half fine grinding resin wheel structure is more reasonable, abrasive material 2 utilization rate of emery wheel is improved greatly, reach saving consumptive material, improve the object in emery wheel service life.
Micro-drill lip half fine grinding resin wheel matrix 1 periphery provided by the present invention adopts the design of three stairsteppings with compared with the scheme of direct for base circumferential face beveling, what combine between abrasive material 2 and matrix 1 is more firm, and can reduce the difficulty of matrix processing.
Micro-drill lip half fine grinding resin wheel matrix 1 periphery provided by the present invention adopts the design of three stairsteppings, can constant at used abrasive material thickness reduce the external diameter of emery wheel, can reconditioning quality be reduced during use, also play the effect of saving consumptive material.
Micro-drill lip half fine grinding resin wheel matrix 1 periphery provided by the present invention adopts the design of three stairsteppings, used inclined-plane when making operator only need trim abrasive material 2 at the micro-drill lip of grinding before first use, reduce operator in use to the finishing number of times of emery wheel, improve production efficiency.
Better by the fill a prescription abrasive material wearability manufactured out of the abrasive material 2 of micro-drill lip half fine grinding resin wheel provided by the present invention in addition, grinding force is stronger, reduces operator to the finishing number of times of emery wheel, enhances productivity, and reduces operator work fatigue intensity.
Embodiment 2, gets phenol-formaldehyde resin powder 132.1g, diamond powder 450g, copper powder 359.5g, phenolic resins wetting agent 20g, cryolite powder 38.4g.Follow-up concrete preparation method is consistent with embodiment 1, no longer repeats.
Embodiment 3, gets phenol-formaldehyde resin powder 190.5g, diamond powder 450g, copper powder 283.3g, phenolic resins wetting agent 46.2g, cryolite powder 30g.Follow-up concrete preparation method is consistent with embodiment 1, no longer repeats.
Embodiment 4, gets phenol-formaldehyde resin powder 186.7g, diamond powder 450g, copper powder 359.5g, phenolic resins wetting agent 50g, cryolite powder 30g.Follow-up concrete preparation method is consistent with embodiment 1, no longer repeats.
Embodiment 5, gets phenol-formaldehyde resin powder 132.1g, diamond powder 484.6g, copper powder 283.3g, phenolic resins wetting agent 20g, cryolite powder 80g.Follow-up concrete preparation method is consistent with embodiment 1, no longer repeats.
Embodiment 6, gets phenol-formaldehyde resin powder 150g, diamond powder 480g, copper powder 300g, phenolic resins wetting agent 30g, cryolite powder 40g.Follow-up concrete preparation method is consistent with embodiment 1, no longer repeats.
Claims (2)
1. micro-drill lip half fine grinding resin wheel, comprise the abrasive material (2) be arranged on matrix (1), it is characterized in that, described abrasive material (2) is prepared from by the raw material of following weight percentage: phenol-formaldehyde resin powder 13.21% ~ 19.05%, diamond powder 45% ~ 54%, copper powder 28.33% ~ 35.95%, phenolic resins wetting agent 2% ~ 5%, cryolite powder 3% ~ 8%, each constituent content sum is 100%, and preparation method is as follows:
Step 1), grinding wheel base body (1) is carried out turning and Drilling operation by drawing on lathe, during turning, matrix (1) periphery is lathed three stairsteppings that gap depth difference is 0.2mm, after turning and drilling operating complete with alcohol by clear for matrix surface totally great, use oven for drying for subsequent use;
Step 2), by be the phenol-formaldehyde resin powder of 13.21% ~ 19.05% according to shared percetage by weight, the diamond of 45% ~ 54% and 28.33% ~ 35.95% copper powder mix and put into batch mixer and stir, mixing time is 120 ~ 170 minutes, then by according to shared percetage by weight be 2% ~ 5% phenolic resins wetting agent and 3% ~ 8% cryolite powder join in the mixture of above-mentioned phenol-formaldehyde resin powder, diamond powder and copper powder and again stir 50 ~ 100 minutes;
Step 3), hydraulic press is heated to 280 DEG C, debugging hydraulic press parameter, cleaning mold simultaneously, the place of contact material in mould is made to keep clean, by the grinding wheel base body (1) of dry for standby in step 1) and step 2) in the grinding-wheel grinder bed of material (2) material that mixes put into mould, mould is pushed in the middle of press heating plate and loads onto thermocouple, allow heating plate slowly be pressed on mould, the temperature regulating heating plate is 260 DEG C ~ 290 DEG C, pressing cycle about 60 minutes;
Step 4), using lathe to carry out finish turning according to be shaked out by the height aluminium step of circle, end face, endoporus of drawing by heating the emery wheel that suppresses, making corresponding mark on grinding wheel base body surface simultaneously;
Step 5), the finished product emery wheel machined in step 4) put into baking oven baking 8 ~ 10 hours, oven temperature controls at 150 DEG C ~ 170 DEG C, use of can installing after having toasted.
2. a preparation method for micro-drill lip half fine grinding resin wheel, it is characterized in that, preparation method is as follows:
Step 1), grinding wheel base body (1) is carried out turning and Drilling operation by drawing on lathe, during turning, matrix (1) periphery is lathed three stairsteppings that gap depth difference is 0.2mm, after turning and drilling operating complete with alcohol by clear for matrix surface totally great, use oven for drying for subsequent use;
Step 2), by be the phenol-formaldehyde resin powder of 13.21% ~ 19.05% according to shared percetage by weight, the diamond of 45% ~ 54% and 28.33% ~ 35.95% copper powder mix and put into batch mixer and stir, mixing time is 120 ~ 170 minutes, again by according to shared percetage by weight be 2% ~ 5% phenolic resins wetting agent and 3% ~ 8% cryolite powder join in the mixture of above-mentioned phenol-formaldehyde resin powder, diamond powder and copper powder and again stir 50 ~ 100 minutes, each constituent content sum is 100%;
Step 3), hydraulic press is heated to 280 DEG C, debugging hydraulic press parameter, cleaning mold simultaneously, the place of contact material in mould is made to keep clean, by the grinding wheel base body (1) of dry for standby in step 1) and step 2) in the grinding-wheel grinder bed of material (2) material that mixes put into mould, mould is pushed in the middle of press heating plate and loads onto thermocouple, allow heating plate slowly be pressed on mould, the temperature regulating heating plate is 260 DEG C ~ 290 DEG C, pressing cycle about 60 minutes;
Step 4), using lathe to carry out finish turning according to be shaked out by the height aluminium step of circle, end face, endoporus of drawing by heating the emery wheel that suppresses, making corresponding mark on grinding wheel base body surface simultaneously;
Step 5), the finished product emery wheel machined in step 4) put into baking oven baking 8 ~ 10 hours, oven temperature controls at 150 DEG C ~ 170 DEG C, use of can installing after having toasted.
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| CN201310162107.1A CN103264359B (en) | 2013-05-06 | 2013-05-06 | Micro-drill lip half fine grinding resin wheel and preparation method thereof |
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| CN201310162107.1A CN103264359B (en) | 2013-05-06 | 2013-05-06 | Micro-drill lip half fine grinding resin wheel and preparation method thereof |
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| CN103264359B true CN103264359B (en) | 2015-12-02 |
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| CN104742032A (en) * | 2015-04-24 | 2015-07-01 | 新野鼎泰电子精工科技有限公司 | Resin grinding wheel for slotting micro drill blade and manufacturing method of resin grinding wheel |
| CN105058251A (en) * | 2015-07-07 | 2015-11-18 | 新野鼎泰电子精工科技有限公司 | Twig tungsten steel end face length control resin wheel and preparation method thereof |
| CN114952638B (en) * | 2022-06-09 | 2024-03-19 | 昆山鑫轮超硬磨具有限公司 | Ceramic CBN grinding wheel and self-centering bonding method thereof |
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| DE1816206A1 (en) * | 1967-12-21 | 1969-07-10 | Norton Abrasives Ltd | Electrically conductive abrasive article |
| EP1129824B1 (en) * | 2000-03-02 | 2005-09-14 | Noritake Co., Limited | Resinoid grinding wheel having core portion made of metallic material |
| CN1898039A (en) * | 2003-12-23 | 2007-01-17 | 戴蒙得创新股份有限公司 | Grinding wheel for roll grinding application and method of roll grinding thereof |
| CN101186029A (en) * | 2007-12-17 | 2008-05-28 | 沈阳市盛世磨料磨具有限公司 | Resin reinforced high-speed grinding wheel |
| CN102581778A (en) * | 2012-03-14 | 2012-07-18 | 青岛四砂泰益研磨有限公司 | Medical needle pin grinding wheel and manufacturing method thereof |
| CN102814763A (en) * | 2012-07-31 | 2012-12-12 | 安徽威铭耐磨材料有限公司 | Polyimide resin diamond grinding wheel and preparation method thereof |
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2013
- 2013-05-06 CN CN201310162107.1A patent/CN103264359B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1816206A1 (en) * | 1967-12-21 | 1969-07-10 | Norton Abrasives Ltd | Electrically conductive abrasive article |
| EP1129824B1 (en) * | 2000-03-02 | 2005-09-14 | Noritake Co., Limited | Resinoid grinding wheel having core portion made of metallic material |
| CN1898039A (en) * | 2003-12-23 | 2007-01-17 | 戴蒙得创新股份有限公司 | Grinding wheel for roll grinding application and method of roll grinding thereof |
| CN101186029A (en) * | 2007-12-17 | 2008-05-28 | 沈阳市盛世磨料磨具有限公司 | Resin reinforced high-speed grinding wheel |
| CN102581778A (en) * | 2012-03-14 | 2012-07-18 | 青岛四砂泰益研磨有限公司 | Medical needle pin grinding wheel and manufacturing method thereof |
| CN102814763A (en) * | 2012-07-31 | 2012-12-12 | 安徽威铭耐磨材料有限公司 | Polyimide resin diamond grinding wheel and preparation method thereof |
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Address after: 473500 west side of Tower Road, Xinye County, Henan, Nanyang Patentee after: Xinye Ding hi tech Seiko technology Co., Ltd. Address before: 473500, Nanyang, Henan province Zhongxing Road, Xinye County Xinye Ding Tai Electronic Seiko technology Co., Ltd. Patentee before: Xinye Dingtai Electronic Fine Technology Co.,Ltd. |
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Effective date of registration: 20171220 Address after: 473500 west side of Zhongxing Road, Xinye County, Nanyang City, Henan Patentee after: Nanyang Ding Hi Tech Co., Ltd. Address before: 473500 west side of Tower Road, Xinye County, Henan, Nanyang Patentee before: Xinye Ding hi tech Seiko technology Co., Ltd. |
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Address after: Intersection of Zhongxing Road and Heyuan Road, Xinye County, Nanyang City, Henan Province Patentee after: NANYANG DINGTAI HIGH-TECH Co.,Ltd. Address before: 473500 West Side of Zhongxing Road, Xinye County, Nanyang City, Henan Province Patentee before: NANYANG DINGTAI HIGH-TECH Co.,Ltd. |
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