CN202877599U - Drill point - Google Patents
Drill point Download PDFInfo
- Publication number
- CN202877599U CN202877599U CN 201220491113 CN201220491113U CN202877599U CN 202877599 U CN202877599 U CN 202877599U CN 201220491113 CN201220491113 CN 201220491113 CN 201220491113 U CN201220491113 U CN 201220491113U CN 202877599 U CN202877599 U CN 202877599U
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- Prior art keywords
- drill
- point
- blade
- blade part
- groove
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- Expired - Fee Related
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- 241001074085 Scophthalmus aquosus Species 0.000 claims description 6
- 239000000463 material Substances 0.000 abstract description 11
- 238000005299 abrasion Methods 0.000 abstract description 4
- 230000007774 longterm Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 16
- 230000000694 effects Effects 0.000 description 9
- 238000012545 processing Methods 0.000 description 6
- 239000000758 substrate Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Drilling Tools (AREA)
Abstract
The utility model discloses a drill point which comprises a drill handle and a drill lip, wherein the drill lip is arranged on one side of the drill handle and is formed by the extending of a connection portion. The tail end of the drill lip is a blade face portion with a drill tip. The blade face portion is provided with tow first blade faces and two second blade faces, wherein the two first blade faces and the two second blade faces are symmetrically arranged with the drill tip as a center. Cross blades are formed at the junction of the first blade faces and the second blade faces on the upper portion and the lower portion, the outer edges on the connection portions of two ends of the cross blades with the blade face portion form blade chiseling points, and one ends, close to the connection portion, of the drill blades extend toward the tail end of the drill to form chip grooves. The side edge portion on or over one side of the blade face portion with the blade chiseling points is provided with a thinning groove arranged inward, the thinning groove extends towards the drill handle direction from the tail end of the drill blades with the length from 0.1 mm to 50%-length of the chip grooves, the thinning groove enables the contact friction area between the blade face portion and plate materials to be reduced so as to reduce the heat generated by friction, and when the blade face portion is carried out regrinding after abrasion, the blade face portion of a new drill point is still provided with one or more than one thinning groove, and therefore the purposes of increasing hole limit and hole position precision and improving the quality of a hole wall for a long term are achieved.
Description
Technical field
This creation provides a kind of drill point, espespecially the blade part of drill lip is in a side of tool chisel edge point or the lateral margin place more than the side, be concaved with the groove that thins to the connecting portion extension inwardly, and the length that thins groove is that 0.1mm is to 50% of chip area length, allow blade part contact the area reducing of friction with sheet material, and then reduce the heat that friction produces.
Background technology
Electronic product is under compact designer trends now, so that various electronic products become less for volume requirement, therefore the manufacturing processing of the inner various electronic components of electronic product will become more and more meticulousr, and but the printed circuit plate bulk of electronic component group setting position in the electronic product also must be dwindled thereupon, so in the processing procedure of printed circuit board (PCB), mostly can utilize drill point to carry out the machine drilling processing procedure of circuit substrate processing, form and be electrically connected and solid welding is provided after can providing a plurality of pins of electronic component to intert again.
This drill point is served as reasons and is run through the contact of circuit substrate layer and interlayer, produce point-to-point path, be communicated with serial connection for each electronic component on the circuit substrate, yet, drill point is provided with in the one side can be for the drillstock of board clamping, be provided with again the drill lip of rotatable boring in other side, the drillstock that utilizes board to drive clamping carries out High Rotation Speed, allow drill lip one end rotating contact circuit substrate, the apex point of its drill lip and sword face contact circuit substrate rub and cut, because the apex point of drill lip and sword face are positioned at whole forefront, so position and the size of contact and friction in apex point and the sword face, just can have influence on the size of resistance and frictional heat, when yet the heat that produces during because hole is larger, because thermal stress and high temperature smear metal heat melt the glue slag of generation and multilager base plate not the copper that causes of driving fit appear suddenly and resemble, not only can allow drill point produce easily the situation of broken needle and allow hole limit (every hole number that drill point can bore) reduce, more can allow position, hole precision and hole wall quality reduce, and cause the yield of circuit substrate boring processing procedure to reduce.
Therefore, how to solve problem and the disappearance of existing drill point, be the relevant manufacturer that is engaged in the industry and desire most ardently the direction place that research improves.
Summary of the invention
The main purpose of this creation is, this drill lip is concaved with inwardly in a side of blade part tool chisel edge point or the lateral margin place more than the side and thins groove, allow blade part contact the area reducing of friction with sheet material, reduce thus the heat that friction produces, and then reach the purpose that increases hole limit, position, hole precision, improves the hole wall quality.
The secondary objective of this creation is, this thins groove and is extended towards the connecting portion direction of drillstock by the drill lip end and be 0.1mm to 50% of chip area length, then when blade part abrasion and after grinding again, its new pin blade part still has the one or more groove that thins, contact the effect of area that rubs with sheet material so still have the reduction blade part when using, and then the purpose of temperature when reaching long-term reduction drill point use.
Another purpose of this creation is, when this drill lip only is provided with chip area, 2 first sword faces of blade part and the upper and lower lateral margin of the second sword face just can just can flush to form in the external diameter of drill lip and bore the back of the body, thinning groove is that the brill back of the body place that extends to the first sword face top forms the measurement mouth, allow instrument conveniently stretch into by the measurement mouth and measure, and then can reach the effect of accelerating the QC detection.
A kind of drill point, it comprises drillstock and drill lip, this drillstock one side is for being extended with connecting portion; This drill lip is towards extending away from drillstock one side by connecting portion, its drill lip is terminal for being formed with subuliferous blade part, blade part has 2 first sword faces and the 2 second sword faces that are symmetrical shape centered by apex point, arbitrary the first sword face is adjacent to 2 second sword faces, the intersection of top the first sword face and the second sword face and another the second sword face of below and another the first sword face is chisel edge, its chisel edge two ends connect blade part outer rim place for being formed with the chisel edge point, be formed with chip area by contiguous connecting portion one end of drill lip towards terminal spiral extension again, and be concaved with inwardly by a side of blade part tool chisel edge point or the lateral margin place more than the side and thin groove, it thins groove for being extended towards the connecting portion direction of drillstock by the drill lip end, and the length that thins groove is that 0.1mm is to 50% of chip area length.
Contiguous connecting portion one end of this drill lip is formed with towards terminal spiral extension escapes the crack groove adjacent to chip area.
This tool thins the thick thick 40%-80% of the whole blade part heart of being of the blade part heart of groove.
The junction that thins groove below and blade part lateral border of this drill lip is the first intersection point, and the distance between its first intersection point and the chisel edge point is the 0%-30% of drill lip external diameter.
This junction that thins groove top and blade part lateral border is the second intersection point, and the distance between the second intersection point and the chisel edge point is the 30%-65% of drill lip external diameter.
2 first sword faces of this drill lip blade part flush with the upper and lower lateral margin of the second sword face to form in the external diameter of drill lip and bore the back of the body, thin brill back of the body place that groove extends to the first sword face top and form and measure mouthful.
This drill lip is single-blade or twolip pattern.
The utility model reduces the heat that friction produces, and then reaches the useful technique effect that increases hole limit, position, hole precision, improves the hole wall quality.
Description of drawings
Fig. 1 creates the side elevational schematic view of the first embodiment for this.
Fig. 2 creates the front view of the first embodiment for this.
Fig. 3 creates the front-view schematic diagram of the second embodiment for this.
Fig. 4 creates the front-view schematic diagram of the 3rd embodiment for this.
Fig. 5 creates the front-view schematic diagram of the 4th embodiment for this.
Fig. 6 creates the front-view schematic diagram of the 5th embodiment for this.
Fig. 7 creates the front-view schematic diagram of the 6th embodiment for this.
Fig. 8 creates the front-view schematic diagram of the 7th embodiment for this.
Description of reference numerals
The 1-drillstock; The 11-connecting portion; The 2-drill lip; The 21-blade part; The 22-chip area; The 211-apex point; 23-escapes the crack groove; 212-the first sword face; 24-thins groove; 213-the second sword face; 241-the first intersection point; The 214-chisel edge; 242-the second intersection point; 215-chisel edge point; 243-measures mouth; 216-bores the back of the body.
The specific embodiment
For reaching above-mentioned purpose and effect, the technological means that this creation is adopted and structure thereof, the preferred embodiment of hereby drawing with regard to this creation illustrates that in detail its features and functions is as follows, understands fully in order to do profit.
See also shown in Fig. 1,2,3,4,5, for this side elevational schematic view, front view, the front-view schematic diagram of the second embodiment, the front-view schematic diagram of the 3rd embodiment, the front-view schematic diagram of the 4th embodiment of creating the first embodiment, find out that by knowing shown in the figure this drill point comprises drillstock 1, drill lip 2; Wherein:
These drillstock 1 one sides are for being extended with connecting portion 11.
This drill lip 2 is towards extending away from drillstock 1 one sides by connecting portion 11, its drill lip 2 is terminal for being formed with the blade part 21 of tool apex point 211, blade part 21 has 2 first sword faces 212 and the 2 second sword faces 213 that are symmetrical shape centered by apex point 211, its arbitrary first sword face 212 is adjacent to 2 second sword faces 213, top the first sword face 212 and the second sword face 213 are chisel edge (Chisel Edge) 214 with the intersection of another the second sword face 213 of below and another the first sword face 212, its chisel edge 214 2 ends connect blade part 21 outer rim places for being formed with chisel edge point 215, are formed with adjacent chip area 22 and escape crack groove 23 towards terminal spiral extension by drill lip 2 contiguous connecting portion 11 1 ends again.
And be concaved with inwardly by a side of blade part 21 tool chisel edge points 215 or the lateral margin place more than the side and thin groove 24, it thins groove 24 for being extended towards connecting portion 11 directions of drillstock 1 by drill lip 2 ends, and the length l that thins groove 24 is that 0.1mm is to 50% of chip area 22 length L, and the thick T of blade part 21 hearts that tool thins groove 24 is the 40%-80% of the thick W of whole blade part 21 hearts, its junction that thins groove 24 belows and blade part 21 lateral borders is the first intersection point 241, the junction that thins groove 24 tops and blade part 21 lateral borders is the second intersection point 242, between its first intersection point 241 and the chisel edge point 215 is the 0%-30% of drill lip 2 external diameters apart from x, and the distance y between the second intersection point 242 and the chisel edge point 215 is the 30%-65% of drill lip 2 external diameters.
Above-mentioned drillstock 1 and connecting portion 11 be can with drill lip 2 tool same outer diameter as, or allow drillstock 1 external diameter greater than drill lip 2, and allow connecting portion 11 be gradually-reducing shape downlink connection drill lip, however relevant drillstock 1 is existing technology, and this thin section consists of non-this case creation main points, hereby repeats no more.
Above-mentioned groove 24 major functions that thin are when allowing drill lip 2 carry out the sheet material bore operation, its blade part 21 contacts the area reducing of friction with sheet material, reduce thus the heat that friction produces, and then reach and increase hole limit (hitcount), position, hole precision (hole accuracy), improve the purpose of hole wall quality (hole quality), because high heat can allow apex point 211 strength decreased and produce thermal deformation, apex point 211 is just easily because shearing stress, compression or bending stress produce the situation of broken needle, cause the friction loss degree of apex point 211 to increase, reduction of service life and affect precision, thin the service time that groove 24 just can prolong drill point by one or more, and when apex point 211 abrasion are holed effect to impact, just can grind again (repoint) to drill point and produce new pin, because grinding the processing meeting again grinds away drill lip 2 ends, just can allow the contraction in length of drill lip 2 of new pin, yet, be that 0.1mm is to 50% of chip area 22 length because thin the length of groove 24, still has the one or more groove 24 that thins so grind again rear blade part 21, so, still has reduction blade part 21 contacts the friction area with sheet material effect, the purpose of temperature when reaching thus long-term reduction drill point use.
See also Fig. 1,2, shown in 6, for this creates the side elevational schematic view of the first embodiment, front view, the front-view schematic diagram of the 5th embodiment, find out by knowing shown in the figure, this drill lip 2 also can only be provided with chip area 22, do not escape crack groove 23 and be not provided with, thus, on the 2 first sword faces 212 and the second sword face 213 of its blade part 21, lower lip just can flush to form in the external diameter of drill lip 2 bores the back of the body 216, at this moment, the brill that thins groove 24 and extend to the first sword face 212 tops can be carried on the back 216 places forms and measures mouthfuls 243, because measuring mouth 243, it is positioned at the brill back of the body 216 places, so when measurement thins groove 24 size, just can instrument be stretched into measure by measuring mouthfuls 243, and then can reach and accelerate the effect that QC detects.
See also Fig. 1,2,3,4,5,6,7, shown in 8, for this creates the side elevational schematic view of the first embodiment, front view, the front-view schematic diagram of the second embodiment, the front-view schematic diagram of the 3rd embodiment, the front-view schematic diagram of the 4th embodiment, the front-view schematic diagram of the 5th embodiment, the front-view schematic diagram of the 6th embodiment, the front-view schematic diagram of the 7th embodiment, find out by knowing shown in the figure, this drill lip 2 can be single-blade or twolip pattern, its difference is the feed attrition surface quantity number of contact plate surface when boring only, but because the relative position of 2 first sword faces 212 of blade part 21 and 2 second sword faces 213 is constant, so still can be provided with in blade part 21 1 sides or the lateral margin more than the side and thin groove 24, it thins groove 24 can reach still that the reduction heart is thick to reduce blade part 21 contacts the area that rubs with sheet material purpose.
The drill point of above-mentioned creation when reality is used, for can having following advantage, as:
(1) this drill lip 2 is concaved with inwardly in a side of blade part 21 tool chisel edge points 215 or the lateral margin place more than the side and thins groove 24, allows blade part 21 contact the area reducing of friction with sheet material, reduces thus the heat that friction produces.
(2) this thins groove 24 for being extended towards connecting portion 11 directions of drillstock 1 by drill lip 2 ends, and the length that thins groove 24 is that 0.1mm is to 50% of chip area 22 length, then when blade part 21 abrasion hole effect to impact and need grind again after, its new pin blade part 21 still has and one or morely thins groove 24, so still have reduction blade part 21 contacts the area that rubs with sheet material effect.
When (three) this drill lip 2 only is provided with chip area 22,2 first sword faces 212 of blade part 21 and the second sword face 213 upper and lower lateral margins just can just can flush to form in the external diameter of drill lip 2 and bore the back of the body 216, thin groove 24 and carry on the back 216 places for the brill that extends to the first sword face 212 tops and form and measure mouthfuls 243, allow instrument conveniently stretch into to measure by measuring mouthfuls 243.
So; this creation is mainly for drill point; and connecting portion 11 another ends that drillstock 1 one sides are extended can be extended with drill lip 2; drill lip 2 is terminal for being formed with the blade part 21 of tool apex point 211; drill lip 2 contiguous connecting portion 11 1 ends are formed with adjacent chip area 22 towards terminal spiral extension; the above lateral margin place of one side of blade part 21 tool chisel edge points 215 or a side is concaved with inwardly and thins groove 24; the length that thins groove 24 is that 0.1mm is to 50% of chip area 22 length; allow blade part 21 contact the area reducing of friction with sheet material; the heat that is produced to reduce friction, and then reach increase hole limit; position, hole precision; improving the hole wall quality is main key protection point.
More than be illustrative to description of the present utility model; and it is nonrestrictive; those skilled in the art is understood, and can carry out many modifications, variation or equivalence to it in spirit that claim limits and scope, but they will fall in the protection domain of the present utility model all.
Claims (7)
1. drill point, it comprises drillstock and drill lip, it is characterized in that:
This drillstock one side is for being extended with connecting portion;
This drill lip is towards extending away from drillstock one side by connecting portion, its drill lip is terminal for being formed with subuliferous blade part, blade part has 2 first sword faces and the 2 second sword faces that are symmetrical shape centered by apex point, arbitrary the first sword face is adjacent to 2 second sword faces, the intersection of top the first sword face and the second sword face and another the second sword face of below and another the first sword face is chisel edge, its chisel edge two ends connect blade part outer rim place for being formed with the chisel edge point, be formed with chip area by contiguous connecting portion one end of drill lip towards terminal spiral extension again, and be concaved with inwardly by a side of blade part tool chisel edge point or the lateral margin place more than the side and thin groove, it thins groove for being extended towards the connecting portion direction of drillstock by the drill lip end, and the length that thins groove is that 0.1mm is to 50% of chip area length.
2. drill point as claimed in claim 1 is characterized in that, contiguous connecting portion one end of this drill lip is formed with towards terminal spiral extension escapes the crack groove adjacent to chip area.
3. drill point as claimed in claim 1 is characterized in that, this tool thins the thick thick 40%-80% of the whole blade part heart of being of the blade part heart of groove.
4. drill point as claimed in claim 1 is characterized in that, the junction that thins groove below and blade part lateral border of this drill lip is the first intersection point, and the distance between its first intersection point and the chisel edge point is the 0%-30% of drill lip external diameter.
5. drill point as claimed in claim 1 is characterized in that, this junction that thins groove top and blade part lateral border is the second intersection point, and the distance between the second intersection point and the chisel edge point is the 30%-65% of drill lip external diameter.
6. drill point as claimed in claim 1 is characterized in that, 2 first sword faces of this drill lip blade part flush with the upper and lower lateral margin of the second sword face to form in the external diameter of drill lip and bore the back of the body, thins brill back of the body place that groove extends to the first sword face top and forms and measure mouthful.
7. drill point as claimed in claim 1 is characterized in that, this drill lip is single-blade or twolip pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220491113 CN202877599U (en) | 2012-09-24 | 2012-09-24 | Drill point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220491113 CN202877599U (en) | 2012-09-24 | 2012-09-24 | Drill point |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202877599U true CN202877599U (en) | 2013-04-17 |
Family
ID=48069065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220491113 Expired - Fee Related CN202877599U (en) | 2012-09-24 | 2012-09-24 | Drill point |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202877599U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107052408A (en) * | 2017-01-10 | 2017-08-18 | 深圳市金洲精工科技股份有限公司 | Boring bar tool |
| CN107614169A (en) * | 2015-05-28 | 2018-01-19 | 京瓷株式会社 | The manufacture method of drill bit and machining thing |
| CN110709199A (en) * | 2017-05-29 | 2020-01-17 | 博泰克精密钻孔技术有限公司 | Single-side deep hole drill with chamfer rake face |
| CN111250762A (en) * | 2020-03-20 | 2020-06-09 | 常州机电职业技术学院 | Drill bit convenient for detecting turning point of chisel edge during grinding and manufacturing method thereof |
-
2012
- 2012-09-24 CN CN 201220491113 patent/CN202877599U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107614169A (en) * | 2015-05-28 | 2018-01-19 | 京瓷株式会社 | The manufacture method of drill bit and machining thing |
| CN107614169B (en) * | 2015-05-28 | 2019-07-05 | 京瓷株式会社 | The manufacturing method of drill bit and machined object |
| CN107052408A (en) * | 2017-01-10 | 2017-08-18 | 深圳市金洲精工科技股份有限公司 | Boring bar tool |
| CN110709199A (en) * | 2017-05-29 | 2020-01-17 | 博泰克精密钻孔技术有限公司 | Single-side deep hole drill with chamfer rake face |
| CN111250762A (en) * | 2020-03-20 | 2020-06-09 | 常州机电职业技术学院 | Drill bit convenient for detecting turning point of chisel edge during grinding and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI TOPOINT PRECISION TECHNOLOGY COMPANY LIMI Free format text: FORMER OWNER: TOP POINT TECHNOLOGY CO., LTD. Effective date: 20141225 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: TAIWAN, CHINA TO: 201801 JIADING, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20141225 Address after: 201801 Shanghai Fengdeng Jiading District Malu Town Road No. 505 Patentee after: Top point Technology Co., Ltd. Address before: Chinese Taiwan New Taipei City Patentee before: Top point Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20200924 |