CN1500588A - Drill bit holding unit for tool edge processing device of the front end of a drill bit - Google Patents
Drill bit holding unit for tool edge processing device of the front end of a drill bit Download PDFInfo
- Publication number
- CN1500588A CN1500588A CNA021506477A CN02150647A CN1500588A CN 1500588 A CN1500588 A CN 1500588A CN A021506477 A CNA021506477 A CN A021506477A CN 02150647 A CN02150647 A CN 02150647A CN 1500588 A CN1500588 A CN 1500588A
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- China
- Prior art keywords
- drill bit
- driven shaft
- relative position
- rotation driven
- position adjustment
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- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The drilling bit holding unit for front edge machining device includes two pairs of regulating screws for relative position regulation and hammer part, which is closer to the rotation driving shaft than regulating screws in the driven rotation shaft. The present invention may be used in machining the front edge of drilling bit with small diameter and high length/diameter ratio in high size precision.
Description
Technical field
The present invention relates to chisel edge blade processing unit (plant), be specifically related to a kind of being fit to being used for the drill bit holding unit of the chisel edge blade processing unit (plant) that terminal knife edge is processed before the tellite of printed chassis (below be called tellite) boring processing carries out with the minor diameter drill bit of drill bit etc.
Background technology
Tellite generally is that the Copper Foil of the thin slice of varnished insulation resin on paper or the glass fibre and conductor is long-pending folded and be heated pressurization and make its gluing composite together.Holing at this tellite adds man-hour, in general stacks the processing of holing again in order to consider to lower manufacturing cost with a plurality of tellite is long-pending.Though the drill bit that tellite is used is to use the superhard alloy manufacturing of hard, but owing to adopt above-mentioned too harsh method on the tellite of above-mentioned composite, the lasting use of drill bit can make bit wear, can make the quality deterioration of machining hole unavoidably or drill bit is lost.Therefore the device of terminal knife edge carries out the drill bit of wearing and tearing grinding again and the life-span of drill bit is prolonged before requiring exploitation to process.
In the preceding terminal knife edge processing unit (plant) of in the past drill bit, comprise as the maintaining body of drill bit the drill bit maintaining part of rotatable collet etc., near chisel edge, being provided with supporting member usually in order to prevent to add the vibrations that produce man-hour at front end.Add man-hour at front end, make drill bit rotate needed angle (during two blades is 180 °) after usually terminal knife edge before one of them being processed and reprocess another blade, so the drill bit maintaining part must be able to be rotated drill bit.
And in the minor diameter drill bit, the eccentric error of the chisel edge when clamping (so-called deflection) can have very big influence to the form accuracy of the drill bit after the front end processing, so in order will to suppress deflection less, and be provided with the drill bit maintaining body that at one end has the rotation driven shaft that is provided with the drill bit maintaining part, is provided with the relative position adjustment part of this diaxon at the between centers of rotating driveshaft and above-mentioned rotation driven shaft.
In recent years, high performance, miniaturization along with e-machine require high-density installation on tellite day by day.Along with this requirement, printed circuit basal orientation thin plateization, high multiple stratification, high density distribution direction are developed, and be arranged in the above-mentioned through hole acceleration minor diameterization of tellite, therefore, employed drill bit is also wanted minor diameterization.
As mentioned above, in order to improve operating efficiency and to lower manufacturing cost, wear being processed as of through hole at tellite long-pending the gathering into folds of a plurality of tellites processed again.The draw ratio of through hole (thickness of slab is for the ratio of the diameter in hole) can become very big, and needs long drill bit.Thereby need to implement this minor diameter and long drill bit with the form accuracy of height the chisel edge blade processing unit (plant) of grinding again.
; the chisel edge blade processing unit (plant) in the past that only is provided with drill bit holding device and supporting member just can't not suppress the deflection of drill bit; when clamping, also be difficult to keep accurately the relative positional accuracy of chisel edge and supporting member, be not suitable for carrying out the front end processing of minor diameter drill bit.Though and the aforesaid device that can suppress drill bit maintaining body bit deflection, that comprise the relative position adjustment part that is provided with rotating driveshaft and rotation driven shaft when clamping is processed also very effective to the front end of minor diameter drill bit, owing to comprise that the weight of the rotation driven shaft of drill bit maintaining part is affixed near the chisel edge that is supported by tool rest, with this bearing position is the drill bit meeting bending of fulcrum, and the drill bit after the front end processing is difficult to obtain high form accuracy.For fear of this situation, adopt near the drill bit that is pressed onto tool rest the front end with drill bit to press member, and as brute force press can make drill bit impaired, lose.And the more weak bending that can't suppress drill bit of the strength of pressing, be difficult to give front end processing after drill bit with high form accuracy.The diameter of drill bit is more little or length is long more, and this tendency is just strong more, so will become the very problem of difficulty with the preceding terminal knife edge that high form accuracy is processed the drill bit of the minor diameter that requires in recent years, high length-diameter ratio.
In sum,, then need to maintain drill bit, must try one's best and reduce the deflection of chisel edge when clamping, reduce the bending of the drill bit that adds man-hour as far as possible, and want to suppress to add the vibrations in man-hour in order to process the preceding terminal knife edge of minor diameter drill bit with high form accuracy.
The present invention is in view of above-mentioned requirement, and its purpose is to process with high form accuracy the preceding terminal knife edge of the drill bit of minor diameter, high length-diameter ratio.
Content of the present invention
Technical scheme 1 of the present invention provides a kind of drill bit holding unit of chisel edge blade processing unit (plant), described chisel edge blade processing unit (plant) comprises: the end at rotation driven shaft 3 has the drill bit maintaining part 2 that drill bit 1 is installed, between rotating driveshaft 4 and described rotation driven shaft 3, be provided with the relative position adjustment part 5 of this diaxon, be provided with two pairs in described relative position adjustment part 5 and adjust bolt 6b, 6c, the composition member 5b of a side the described relative position of a pair of adjustment bolt 6b rotatably support adjustment part 5 wherein, the opposing party's a pair of adjustment bolt 6c rotatably support is being connected with the drill bit maintaining body 7 of composition member 5c of the above-mentioned relative position adjustment part 5 of described rotation driven shaft 3; Support the tool rest 8 of the cutter portion of described drill bit 1; The grinding attachment of the front end face of the described drill bit of grinding is characterized in that: also comprise along the extending direction of the described rotation driven shaft 3 described two pairs of hammer portions 9 that adjust bolt 6b, more approaching described rotating driveshaft 4 sides of 6c than described relative position adjustment part 5.
In the drill bit holding unit of technical scheme 1, the weight of described hammer portion 9 is set for: around the central shaft of described a pair of adjustment bolt 6c of composition member 5c of the described relative position adjustment part 5 that is connected with described rotation driven shaft 3 equalising torque that the weight of moment that the deadweight of described rotation driven shaft 3 causes and described hammer portion 9 is caused for rotatably support.
In the drill bit holding unit of technical scheme 1 or 2, above-mentioned hammer portion 9 is along the removable adjustment of the direction of principal axis of above-mentioned rotation driven shaft 3.
In the drill bit holding unit of technical scheme 1,2 or 3, comprise that also drill bit presses member 10.
As mentioned above, the present invention has the drill bit maintaining part 2 that drill bit 1 is installed at an end that rotates driven shaft 3, be provided with the relative position adjustment part 5 of this diaxon at rotating driveshaft 4 and 3 of above-mentioned rotation driven shafts, and comprise along the extension of above-mentioned rotation driven shaft 3 and adjust bolt 6b than above-mentioned two pairs of above-mentioned relative position adjustment part 5, the hammer portion 9 of more approaching above-mentioned rotating driveshaft 4 sides of 6c, owing to be to make the cutter portion of supporting above-mentioned drill bit 1 by tool rest 8, can adjust the deflection of the front end that as far as possible reduces above-mentioned drill bit 1 by above-mentioned relative position adjustment part 5, set the weight of above-mentioned hammer portion 9 by the balance of considering above-mentioned moment, can not have to keep drill bit 1 under the crooked state.
Make above-mentioned moment complete equipilibrium though be difficult to set closely the weight of above-mentioned hammer portion 9, but above-mentioned hammer of the present invention portion 9 is to be mounted to move towards the direction of principal axis adjustment of above-mentioned rotation driven shaft 3, so can adjust the equilbrium position of moment according to its axial position.
And, press member 10 by drill bit and be pressed into tool rest 8 by the above-mentioned drill bit 1 that will be in the state that does not have deflection and bending, can suppress the vibrations that front end adds man-hour.
Therefore, the present invention can provide the drill bit holding unit of the very good chisel edge blade processing unit (plant) of practicality, can process the preceding terminal knife edge of the drill bit of minor diameter, high length-diameter ratio with high form accuracy.
The accompanying drawing simple declaration
Fig. 1 is the plane of explanation embodiments of the invention.
Fig. 2 is the front elevation of explanation embodiments of the invention.
Fig. 3 is the right hand view of the tool rest portion of key diagram 2.
The specific embodiment
Embodiments of the present invention below are described with reference to the accompanying drawings.
The structure of the drill bit holding unit of chisel edge blade processing unit (plant) at first is described, mainly comprises as shown in Figure 2: rotary driving source (can use any drive source, in the present embodiment, only with stepper motor as making use-case.) (said here rotating driveshaft is a motor drive shaft of directly using stepper motor, but also can the axial region of the composition member 5a of relative position adjustment part 5 for example be installed by the drive source of the reality of motor etc. via contextures such as gears for S, rotating driveshaft 4.), relative position adjustment part 5, the rotation driven shaft 3, drill bit maintaining part 2 and drill bit 1, in addition, be provided with below the above-mentioned stepper motor S make above-mentioned drill bit 1 can about the micrometer head that moves around, and be provided with the stepper motor main body and be connected integratedly, and the sliding stand T of above-mentioned relative position adjustment part 5 and above-mentioned rotation driven shaft 3 can be installed on pedestal B slidably.
The drill bit holding unit of chisel edge blade processing unit (plant) of the present invention comprises: an end of rotation driven shaft 3 have drill bit maintaining part 2 that drill bit 1 is installed (though the application employed be collet, also can adopt side chain fixed pattern chuck.), be provided with the relative position adjustment part 5 of this diaxon at rotating driveshaft 4 and 3 of above-mentioned rotation driven shafts, be provided with two pairs in this relative position adjustment part 5 and adjust bolt 6b, 6c, the composition member 5b of a side the above-mentioned relative position of a pair of adjustment bolt 6b rotatably support adjustment part 5 wherein, the opposing party's a pair of adjustment bolt 6c rotatably support the drill bit maintaining body 7 of the composition member 5c of the above-mentioned relative position adjustment part 5 that is connected with above-mentioned rotation driven shaft 3, support the tool rest 8 of the cutter portion of above-mentioned drill bit 1, the grinding attachment of the front end face of the above-mentioned drill bit of grinding, and push to above-mentioned tool rest 8 and suppress the lateral support mode that front end adds the vibrations in man-hour by being in the drill bit 1 that does not have deflection and crooked state, or the drill bit of pushing support pattern of above-below direction presses member 10.And comprise along the extension of above-mentioned rotation driven shaft 3 and adjust bolt 6b than above-mentioned two pairs of above-mentioned relative position adjustment part 5, the hammer portion 9 of more approaching above-mentioned rotating driveshaft 4 sides of 6c, can adjust this one and reduce the deflection of the front end of above-mentioned drill bit 1 as far as possible, and consider the equalising torque of above-mentioned power, the weight of above-mentioned hammer portion 9 is set for: around the central shaft of above-mentioned a pair of adjustment bolt 6c of composition member 5c of the relative position adjustment part 5 that is connected with rotation driven shaft 3 equalising torque that the weight of moment that the deadweight of above-mentioned rotation driven shaft 3 causes and above-mentioned hammer portion 9 is caused at rotatably support.
Claims (4)
1. the drill bit holding unit of a chisel edge blade processing unit (plant), described chisel edge blade processing unit (plant) comprises: the end at rotation driven shaft (3) has the drill bit maintaining part (2) of installation drill bit (1), between rotating driveshaft (4) and described rotation driven shaft (3), be provided with the relative position adjustment part (5) of this diaxon, be provided with two pairs in described relative position adjustment part (5) and adjust bolt (6b), (6c), the composition member (5b) of a side a pair of adjustment bolt (6b) rotatably support described relative position adjustment part (5) wherein, the opposing party's a pair of adjustment bolt (6c) rotatably support is being connected with the drill bit maintaining body (7) of composition member (5c) of the above-mentioned relative position adjustment part (5) of described rotation driven shaft (3); Support the tool rest (8) of the cutter portion of described drill bit (1); The grinding attachment of the front end face of the described drill bit of grinding is characterized in that: also comprise along the extending direction of described rotation driven shaft (3) the described two pairs of hammer portions (9) that adjust bolts (6b), (6c) more approaching described rotating driveshaft (4) side than described relative position adjustment part (5).
2. the drill bit holding unit of chisel edge blade processing unit (plant) as claimed in claim 1, it is characterized in that: the weight of described hammer portion (9) is set for: around the central shaft of described a pair of adjustment bolt (6c) of composition member (5c) of the described relative position adjustment part (5) that is connected with described rotation driven shaft (3) equalising torque that the weight of moment that the deadweight of described rotation driven shaft (3) causes and described hammer portion (9) is caused for rotatably support.
3. the drill bit holding unit of chisel edge blade processing unit (plant) as claimed in claim 1 or 2 is characterized in that: described hammer portion (9) is the removable adjustment of direction of principal axis along described rotation driven shaft (3).
4. as the drill bit holding unit of claim 1,2 or 3 described chisel edge blade processing unit (plant)s, it is characterized in that: comprise that also drill bit presses member (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021506477A CN1315614C (en) | 2002-11-12 | 2002-11-12 | Drill bit holding unit for tool edge processing device of the front end of a drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021506477A CN1315614C (en) | 2002-11-12 | 2002-11-12 | Drill bit holding unit for tool edge processing device of the front end of a drill bit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1500588A true CN1500588A (en) | 2004-06-02 |
| CN1315614C CN1315614C (en) | 2007-05-16 |
Family
ID=34234001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021506477A Expired - Fee Related CN1315614C (en) | 2002-11-12 | 2002-11-12 | Drill bit holding unit for tool edge processing device of the front end of a drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1315614C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101508109B (en) * | 2009-03-27 | 2011-05-25 | 东北大学 | Double parallel-connection superposition multifunctional robot |
| CN102922377A (en) * | 2011-08-08 | 2013-02-13 | 姚福来 | Method for automatically grinding micro drill blade |
| CN102922378A (en) * | 2011-08-08 | 2013-02-13 | 姚福来 | Drill placing module of micro drill blade grinding machine |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3916570A (en) * | 1973-12-21 | 1975-11-04 | Boeing Co | Centerpoint drill grinding machine |
| CN2158766Y (en) * | 1992-10-31 | 1994-03-16 | 西南石油学院 | Hand-driven cutter grinding device for group drills |
| CN2190002Y (en) * | 1993-12-17 | 1995-02-22 | 陈良浩 | Grinding machine for fluted twist drill |
| CN2244454Y (en) * | 1995-11-20 | 1997-01-08 | 张文奇 | Drill grinding machine |
| JP2739312B1 (en) * | 1997-02-06 | 1998-04-15 | 株式会社ビック．ツール | Automatic drill polishing machine |
-
2002
- 2002-11-12 CN CNB021506477A patent/CN1315614C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101508109B (en) * | 2009-03-27 | 2011-05-25 | 东北大学 | Double parallel-connection superposition multifunctional robot |
| CN102922377A (en) * | 2011-08-08 | 2013-02-13 | 姚福来 | Method for automatically grinding micro drill blade |
| CN102922378A (en) * | 2011-08-08 | 2013-02-13 | 姚福来 | Drill placing module of micro drill blade grinding machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1315614C (en) | 2007-05-16 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070516 Termination date: 20201112 |
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| CF01 | Termination of patent right due to non-payment of annual fee |