CN207205354U - A kind of drill point of high-efficient cutting - Google Patents
A kind of drill point of high-efficient cutting Download PDFInfo
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- CN207205354U CN207205354U CN201721105621.1U CN201721105621U CN207205354U CN 207205354 U CN207205354 U CN 207205354U CN 201721105621 U CN201721105621 U CN 201721105621U CN 207205354 U CN207205354 U CN 207205354U
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- groove
- needle body
- knife
- drill point
- efficient cutting
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Abstract
The utility model provides a kind of drill point of high-efficient cutting, including：The needle body：The needle body is provided with spiral helicine groove, and groove along needle body axial direction three U-lags arranged side by side by forming；Knife portion：Knife portion is located at the front end formation edge of a knife on the head of the needle body, knife portion and groove, and the horizontal cross-section of the edge of a knife is continuous curve surface, and the utility model high-efficient cutting drill point area of cut is big, and cutting angle is more, and stock-removing efficiency is high.
Description
Technical field
Drill point is the utility model is related to, more particularly, to a kind of drill point of high-efficient cutting.
Background technology
Electronic product is towards under compact designer trends now so that various electronic products become for volume requirement
Must be smaller, therefore the manufacture processing of various electronic components will become increasingly finer inside electronic product, and make in electronic product
Being available for the printed circuit plate bulk of electric component group setting position must also reduce therewith, so in the processing procedure of printed circuit board (PCB),
The machine drilling processing procedure of circuit substrate processing can be carried out using drill point mostly, and the multiple pins that can provide electronic component intert
Give solid welding again afterwards to be electrically connected.
The drill point is by the contact through circuit substrate layer and interlayer, to produce the path of point-to-point, for circuit
Each electronic component is able to connection concatenation on substrate, however, drill point is provided with the drillstock for being available for board to clamp in its side, then at another side
The edge of a knife provided with rotatable drilling, the drillstock for driving clamping using board carries out high speed rotation, to allow edge of a knife one end rotating contact
Circuit substrate, knife edge contact circuit substrate are rubbed and cut, but the drill point edge cut angle of prior art is single, cuts
Bevel product is small, and processing drilling efficiency is low.
Need that a kind of cutting angle is more badly, the drill point of the big high-efficient cutting of the area of cut.
Utility model content
In view of this, a kind of cutting angle of the utility model offer is more, the drill point of the big high-efficient cutting of the area of cut.
The purpose of this utility model is achieved through the following technical solutions：
A kind of drill point of high-efficient cutting, including：The needle body：The needle body is provided with spiral helicine groove, and groove is by along needle body axial direction side
Formed to three U-lags arranged side by side；Knife portion：Knife portion is located at the front end intersection formation edge of a knife on the head of the needle body, knife portion and groove,
The horizontal cross-section of the edge of a knife is continuous curve surface.
By the edge of a knife of continuous curve surface shape, increase effective area of cut of the edge of a knife, increase the cutting angle of the edge of a knife, so as to
Stock-removing efficiency is improved, groove be three curved surfaces arranged side by side along needle body axial cross section, and in the case of identical chip space, three arranged side by side
U-lag depth as shallow, avoid slotting too deep, broken needle, chip removal efficiency high occur.
Preferably, the horizontal cross-section of the edge of a knife is zigzag or continuous waveform.
The effective area of cut of the continuous waveform edge of a knife is big, and processing drill hole inner wall is smooth；The zigzag edge of a knife is effectively cut
Area is big, and knife-edge is sharp, and stock-removing efficiency is high.
Preferably, afterbody of the pitch of groove from the head of the needle body to the needle body gradually increases.
During processing, the edge of a knife and friction of workpiece, chip is produced, the groove at the head of the needle body produces more close to machined surface
Chip, the needle body is threaded the groove of shape, and the afterbody of the pitch of groove from the head of the needle body to the needle body gradually increases, close to pin
Helical groove pitch at body head is smaller, can hold that chip is more, and groove of the chip along shape of threads moves upwards, most heel row
Go out groove, prevent because chip space is too small, block even stuck drill point；During rotation, the moment of torsion of rotating the needle is big, and distribution is excessively concentrated
Groove cause the low intensity of drill point, broken needle easily occurs；The utility model drill point is larger close to the recessed poor pitch of needle body afterbody,
Intensity is high, is not easy broken needle.
Preferably, groove is two, and the edge of a knife that two grooves are formed with knife portion respectively is symmetrical.
Same level stress balance when the symmetrical edge of a knife cuts rotation, local pressure mistake is not easy in horizontal direction
Greatly, broken needle occurs, two edges of a knife, increases stock-removing efficiency and chip removal efficiency.
Preferably, two grooves are juxtaposed on blade, and the distance between two grooves are from the head of the needle body to the needle body
Afterbody is gradually reduced, and the end of two grooves overlaps.
During processing, the Integrated Chip of needle body afterbody is less, and the groove area that the needle body opens up is excessive, the low intensity of drill point, and two recessed
The distance between groove is gradually reduced from the head of the needle body to the afterbody of the needle body, is overlapped in the afterbody of the needle body, ensures that needle body head has
Larger Integrated Chip space, increase chip removal efficiency, diminishing groove spacing, until overlapping, avoid needle body middle part and afterbody
Because fluting area is excessive, low intensity, broken needle occurs.
Preferably, the groove depth of groove is gradually reduced from the front end of groove to the end of groove.
The groove depth of groove is gradually reduced from the front end of groove to the end of groove, ensures that needle body head has larger Integrated Chip empty
Between, in the middle part of the needle body and depth of groove that afterbody is gradually reduced, due to the needle body thickness group of the horizontal direction between two grooves
Part increases, and the intensity of drill point gradually increases, in use, the main shaft of the afterbody of the needle body and lathe connects, junction intensity is high, is not easy
Generation broken needle.
Preferably, the angle that two edges of a knife are formed is 130 °.
Drill point angle i.e. at drill point head tip is 130 °, and the hole position of drill point processing is good, and wear resistant ability is strong, is not easy to lack
Angle.
Preferably, needle length is 1mm~12mm.
The length of the needle body is 1mm~12mm, and groove is opened in the needle body, ensure to have it is enough escape gap length, Integrated Chip can be smoothly
Exclude, the pore structure precision processed is high, while avoids because rotating the needle length is oversize, and broken needle occurs for easy stress.
Preferably, the axis angle of the slotted line of groove front end and the needle body is 45 °
The slotted line of groove front end and the axis angle of the needle body are 45 °, ensure that there is larger allowance space needle body front end, prevent
Only allowance space is too small, and front end produces more chip when processing and has little time to exclude, and influences pore-forming accuracy.
Preferably, the edge of a knife is coated with titanium nitride or diamond dust coating.
The edge of a knife is coated with titanium nitride or diamond dust coating, improves the wearability of the edge of a knife, so as to extend the service life of drill point.
The beneficial effects of the utility model：
1. the drill point of high-efficient cutting provided by the utility model, by the edge of a knife of continuous curve surface shape, increase the edge of a knife
Effective area of cut, increase the cutting angle of the edge of a knife, so as to improve stock-removing efficiency, groove is three arranged side by side along needle body axial cross section
U-lag, in the case of identical chip space, three cambered grooving depth as shallow arranged side by side, avoid slotting too deep, broken needle occur,
Chip removal efficiency high.
2. the drill point of high-efficient cutting provided by the utility model, the continuous effective area of cut of the waveform edge of a knife is big, processing
Drill hole inner wall is smooth；The effective area of cut of the zigzag edge of a knife is big, and knife-edge is sharp, and stock-removing efficiency is high.
3. the drill point of high-efficient cutting provided by the utility model, the needle body is threaded the groove of shape, and the pitch of groove is certainly
The head of the needle body gradually increases to the afterbody of the needle body, and the helical groove pitch at the needle body head is smaller, can hold chip compared with
More, groove of the chip along shape of threads moves upwards, finally discharges groove, prevents because chip space is too small, blocks and even blocks
Dead drill point；During rotation, the moment of torsion of rotating the needle is big, and being distributed the groove excessively concentrated causes the low intensity of drill point, and broken needle easily occurs；This
Utility model drill point is larger close to the recessed poor pitch of needle body afterbody, and intensity is high, is not easy broken needle.
4. the drill point of high-efficient cutting provided by the utility model, the distance between two grooves are from the head of the needle body to pin
The afterbody of body is gradually reduced, and is overlapped in the afterbody of the needle body, ensures that there is larger Integrated Chip space on needle body head, increases chip removal efficiency,
Diminishing groove spacing, until overlapping, avoid in the middle part of the needle body and afterbody is because fluting area is excessive, low intensity, occur
Broken needle.
5. the drill point of high-efficient cutting provided by the utility model, the end of the groove depth of groove from the front end of groove to groove
It is gradually reduced, ensures that there is a larger Integrated Chip space on needle body head, in the middle part of the needle body and depth of groove that afterbody is gradually reduced, due to
The needle body thickness component increase of horizontal direction between two grooves, the intensity of drill point gradually increases, in use, the afterbody of the needle body
It is connected with the main shaft of lathe, junction intensity is high, is not susceptible to broken needle.
6. the drill point of high-efficient cutting provided by the utility model, the drill point angle at drill point head tip is 130 °, drill point
The hole position of processing is good, and wear resistant ability is strong, is not easy unfilled corner.
7. the drill point of high-efficient cutting provided by the utility model, the length of the needle body is 1mm~12mm, and groove is opened in pin
Body, ensure to have it is enough escape gap length, Integrated Chip can be excluded smoothly, and the pore structure precision processed is high, while avoids due to rotating the needle
Length is oversize, and broken needle occurs for easy stress.
8. the drill point of high-efficient cutting provided by the utility model, the slotted line of groove front end and the axis angle of the needle body are
45 °, ensure that there is larger allowance space needle body front end, prevent that allowance space is too small, front end produces more chip when processing and come not
And exclude, influence pore-forming accuracy.
Brief description of the drawings
Fig. 1 is the drill point structure schematic diagram one of the high-efficient cutting of embodiment 1；
Fig. 2 is the drill point structure schematic diagram two of the high-efficient cutting of embodiment 1；
Fig. 3 is the drill point structure schematic diagram three of the high-efficient cutting of embodiment 1；
Fig. 4 is the drill point structure schematic diagram of the high-efficient cutting of embodiment 2；
Fig. 5 is the drill point structure schematic diagram of the high-efficient cutting of embodiment 3；
Wherein：The 10- needle bodys；101- grooves；20- knives portion；The 201- edges of a knife.
Specific embodiment
Technical solutions of the utility model are further described with reference to embodiment.
Embodiment 1
As Figure 1-3, the present embodiment provides a kind of drill point of high-efficient cutting, including：The needle body 10：The needle body 10 is provided with spiral
The groove 101 of shape, groove 101 along the axial direction of the needle body 10 three U-lags arranged side by side by forming；Knife portion 20：Knife portion 20 is located at pin
The front end intersection of the head of body 10, knife portion 20 and groove 101 forms the edge of a knife 201, and 201 horizontal cross-sections of the edge of a knife are continuous bent
Face.
By the edge of a knife 201 of continuous curve surface shape, increase effective area of cut of the edge of a knife 201, increase the cutting of the edge of a knife 201
Angle, so as to improve stock-removing efficiency；The chip space of groove 101 of " W " shape is big, chip removal efficiency high.
The horizontal cross-section of the edge of a knife 201 is zigzag.
201 effective area of cut of the zigzag edge of a knife is big, the sharp edges of the edge of a knife 201, and stock-removing efficiency is high.
Groove 101 is two, and the edge of a knife 201 that two grooves 101 are formed with knife portion 20 respectively is symmetrical.
Same level stress balance when the symmetrical edge of a knife 201 cuts rotation, local pressure is not easy in horizontal direction
It is excessive, broken needle occurs, two edges of a knife 201, increases stock-removing efficiency and chip removal efficiency.
Two grooves 101 are juxtaposed on blade, and the distance between two grooves 101 are from the head of the needle body 10 to the needle body 10
Afterbody be gradually reduced, the end of two grooves 101 overlaps.
During processing, the Integrated Chip of the afterbody of the needle body 10 is less, and the area of groove 101 that the needle body 10 opens up is excessive, the low intensity of drill point,
The distance between two grooves 101 are gradually reduced from the head of the needle body 10 to the afterbody of the needle body 10, are overlapped in the afterbody of the needle body 10,
Ensure that there is larger Integrated Chip space on the head of the needle body 10, increase chip removal efficiency, the diminishing spacing of groove 101, until overlapping, keep away
Exempt from the middle part of the needle body 10 and afterbody because fluting area is excessive, low intensity, broken needle occurs.
Embodiment 2
As shown in figure 4, the present embodiment provides a kind of drill point of high-efficient cutting, including：The needle body 10：The needle body 10 is provided with helical form
Groove 101, groove 101 along three arranged side by side U-lags of the axial direction of the needle body 10 by forming；Knife portion 20：Knife portion 20 is located at the needle body
10 head, knife portion 20 and the front end intersection of groove 101 form the edge of a knife 201, and 201 horizontal cross-sections of the edge of a knife are continuous wave
Shape；Groove 101 is two, and the edge of a knife 201 that two grooves 101 are formed with knife portion 20 respectively is symmetrical.
Continuous waveform 201 effective areas of cut of the edge of a knife are big, and processing drill hole inner wall is smooth.
Embodiment 3
As shown in figure 5, the present embodiment provides a kind of drill point of high-efficient cutting, including：The needle body 10：The needle body 10 is provided with helical form
Groove 101, groove 101 along three arranged side by side U-lags of the axial direction of the needle body 10 by forming；Knife portion 20：Knife portion 20 is located at the needle body
10 head, knife portion 20 and the front end intersection of groove 101 form the edge of a knife 201, and 201 horizontal cross-sections of the edge of a knife are continuous curve surface.
The horizontal cross-section of the edge of a knife 201 is zigzag.
The pitch of groove 101 gradually increases from the head of the needle body 10 to the afterbody of the needle body 10.
During processing, the edge of a knife 201 and friction of workpiece, produce chip, the groove 101 at the head of the needle body 10 close to machined surface,
More chip is produced, the needle body 10 is threaded the groove 101 of shape, and groove 101 is " W " shape along needle body axial cross section；Groove 101
Pitch gradually increase from the head of the needle body 10 to the afterbody of the needle body 10, the spiral shell of helical groove 101 at the head of the needle body 10
Away from smaller, can hold that chip is more, groove 101 of the chip along shape of threads moves upwards, finally discharges groove 101, prevent due to
Chip space is too small, blocks even stuck drill point；During rotation, the moment of torsion of rotating the needle is big, and being distributed the groove 101 excessively concentrated causes to bore
The low intensity of pin, easily occurs broken needle；The utility model drill point is larger close to the recessed poor pitch of the afterbody of the needle body 10, and intensity is high, no
Easy broken needle.
Embodiment 4
The present embodiment provides a kind of drill point of high-efficient cutting, including：The needle body 10：The needle body 10 is provided with spiral helicine groove 101,
Groove 101 along the axial direction of the needle body 10 three U-lags arranged side by side by forming；Knife portion 20：Knife portion 20 is located at the head of the needle body 10, knife
Portion 20 and the front end intersection of groove 101 form the edge of a knife 201, and the horizontal cross-section of the edge of a knife 201 is continuous waveform.
The pitch of groove 101 gradually increases from the head of the needle body 10 to the afterbody of the needle body 10.
Groove 101 is two, and the edge of a knife 201 that two grooves 101 are formed with knife portion 20 respectively is symmetrical.
Two grooves 101 are juxtaposed on blade, and the distance between two grooves 101 are from the head of the needle body 10 to the needle body 10
Afterbody be gradually reduced, the end of two grooves 101 overlaps.
The groove depth of groove 101 is gradually reduced from the front end of groove 101 to the end of groove 101.
The groove depth of groove 101 is gradually reduced from the front end of groove 101 to the end of groove 101, ensures that the head of the needle body 10 has
The depth of groove 101 that larger Integrated Chip space, the middle part of the needle body 10 and afterbody are gradually reduced, due between two grooves 101
The thickness component of the needle body 10 increase of horizontal direction, the intensity of drill point gradually increases, in use, the master of the afterbody of the needle body 10 and lathe
Axis connection, junction intensity is high, is not susceptible to broken needle.
The angle that two edges of a knife 201 are formed is 130 °.
Drill point angle i.e. at drill point head tip is 130 °, and the hole position of drill point processing is good, and wear resistant ability is strong, is not easy to lack
Angle.
The length of the needle body 10 is 1mm~12mm.
The length of the needle body 10 is 1mm~12mm, and groove 101 is opened in the needle body 10, ensures to have and enough escapes gap length, Integrated Chip
Can smoothly it exclude, the pore structure precision processed is high, while avoids because rotating the needle length is oversize, and broken needle occurs for easy stress.
The slotted line of the front end of groove 101 is 45 ° with the axis angle of the needle body 10
The slotted line of the front end of groove 101 is 45 ° with the axis angle of the needle body 10, ensures that there is larger allowance the front end of the needle body 10
Space, prevent that allowance space is too small, front end produces more chip when processing and has little time to exclude, and influences pore-forming accuracy.
The edge of a knife 201 is coated with titanium nitride or diamond dust coating.
The edge of a knife 201 is coated with titanium nitride or diamond dust coating, the wearability of the edge of a knife 201 is improved, so as to extend the use of drill point
Life-span.
It is wherein specific implementation of the present utility model above, therefore its description is more specific and detailed, but can not be
And it is interpreted as the limitation to the utility model patent scope.For the person of ordinary skill of the art, this reality is not being departed from
On the premise of new design, various modifications and improvements can be made, these obvious alternative forms belong to this reality
With new protection domain.
Claims (10)
- A kind of 1. drill point of high-efficient cutting, it is characterised in that including：The needle body：The needle body is provided with spiral helicine groove, and groove along needle body axial direction three U-lags arranged side by side by forming；Knife portion：Knife portion is located at the front end intersection formation edge of a knife on the head of the needle body, knife portion and groove, and the horizontal cross-section of the edge of a knife is company Continuous curved surface.
- 2. the drill point of high-efficient cutting according to claim 1, it is characterised in that the horizontal cross-section of the edge of a knife is zigzag or company Continuous waveform.
- 3. the drill point of high-efficient cutting according to claim 1, it is characterised in that the pitch of groove is from the head of the needle body to pin The afterbody of body gradually increases.
- 4. the drill point of high-efficient cutting according to claim 1, it is characterised in that groove be two, two grooves respectively with Two edges of a knife that knife portion is formed are symmetrical.
- 5. the drill point of high-efficient cutting according to claim 4, it is characterised in that two grooves are juxtaposed on blade, and two The distance between individual groove is gradually reduced from the head of the needle body to the afterbody of the needle body, and the end of two grooves overlaps.
- 6. the drill point of high-efficient cutting according to claim 1, it is characterised in that the groove depth of groove is from the front end of groove to recessed The end of groove is gradually reduced.
- 7. the drill point of the high-efficient cutting according to claim 4-6 any one claims, it is characterised in that two edges of a knife The angle of formation is 130 °.
- 8. the drill point of high-efficient cutting according to claim 1, it is characterised in that needle length is 1mm~12mm.
- 9. the drill point of high-efficient cutting according to claim 1, it is characterised in that the slotted line of groove front end and the axle of the needle body Wire clamp angle is 45 °.
- 10. the drill point of high-efficient cutting according to claim 1, it is characterised in that the edge of a knife is coated with titanium nitride or diamond dust applies Layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721105621.1U CN207205354U (en) | 2017-08-31 | 2017-08-31 | A kind of drill point of high-efficient cutting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721105621.1U CN207205354U (en) | 2017-08-31 | 2017-08-31 | A kind of drill point of high-efficient cutting |
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| Publication Number | Publication Date |
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| CN207205354U true CN207205354U (en) | 2018-04-10 |
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| CN201721105621.1U Active CN207205354U (en) | 2017-08-31 | 2017-08-31 | A kind of drill point of high-efficient cutting |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107363304A (en) * | 2017-08-31 | 2017-11-21 | 广州卓程电子科技有限公司 | A kind of drill point of high-efficient cutting |
-
2017
- 2017-08-31 CN CN201721105621.1U patent/CN207205354U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107363304A (en) * | 2017-08-31 | 2017-11-21 | 广州卓程电子科技有限公司 | A kind of drill point of high-efficient cutting |
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