CN208600782U - High-precision inner-cooling drill bit - Google Patents
High-precision inner-cooling drill bit Download PDFInfo
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- CN208600782U CN208600782U CN201821144358.1U CN201821144358U CN208600782U CN 208600782 U CN208600782 U CN 208600782U CN 201821144358 U CN201821144358 U CN 201821144358U CN 208600782 U CN208600782 U CN 208600782U
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- cooling drill
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Abstract
The utility model relates to drilling device technical fields, a kind of high-precision inner-cooling drill bit is provided, it include: knife handle and processing department, wherein, one end of the processing department is connect with one end of the knife handle, and the side of the processing department is provided at least two chip pockets, forms land between two adjacent chip pockets, in the shape of a spiral, the lateral surface of the land is provided with chip space for the chip pocket and land.When making the inwall processing of land device to hole of high-precision inner-cooling drill bit based on the above structure, the clast of generation can timely enter in chip space, and it is discharged through chip space, larger amount of clast is not only avoided to be present between the lateral surface of land and the inner wall in hole, cause the inner wall in hole scratch occur, influence the roughness of the inner wall in hole, and avoids the lateral surface excessive wear of land, to improve the processing quality to workpiece, and extend the service life of the high-precision inner-cooling drill bit.
Description
Technical field
The utility model relates to drilling device technical field more particularly to a kind of high-precision inner-cooling drill bits.
Background technique
It is well known that high-precision inner-cooling drill bit is a kind of bore cutter.There is high-precision inner-cooling drill bit at least one master to cut
Sword is cut, which prolongs from the peripheral surface of high-precision inner-cooling drill bit substantially towards the center position of high-precision inner-cooling drill bit
It stretches.Cutting zone is formed in the central area of high-precision inner-cooling drill bit, due to the angle of wedge in the cutting zone
(Keilwinkel) it is significantly greater than the angle of wedge in radially outer cutting zone, therefore more specifically the cutting zone is to scrape
It cuts and oppresses rather than cut.
During realizing the application, the inventor finds that the existing technology has at least the following problems: existing high-precision
The area of lateral surface of the interior cold drill bit because of land is larger, necessarily leads to the lateral surface for having larger amount of clast to be present in land and hole
Inner sidewall between.There is scratch in the inner sidewall for not only resulting in hole in this way, influences the roughness of the inner sidewall in hole, so that plus
Workpiece after work is not up to standard；The lateral surface serious wear of land is also resulted in, and then influences the use longevity of the high-precision inner-cooling drill bit
Life.
Summary of the invention
In order to solve the above-mentioned technical problem, the utility model embodiment provides a kind of high-precision and with long service life interior cold
Drill bit.
The utility model provides a kind of high-precision inner-cooling drill bit, has rotation axis, including knife handle and processing department, wherein
One end of processing department is connect with one end of the knife handle, and the side of the processing department is provided at least two chip pockets, adjacent
Land is formed between two chip pockets, in the shape of a spiral, the lateral surface of the land is provided with chip removal for the chip pocket and land
Slot.
In some embodiments, the chip pocket is prolonged from the other end face of the processing department to one end spiral of the knife handle
It stretches, and chip pocket edge is remained unchanged perpendicular to the cross-sectional area on each section of the rotation axis.
In some embodiments, there are two the chip pocket is total to, and two chip pockets and two lands are equal
It is surrounded on the rotation axis, and is arranged alternately.
In some embodiments, two chip pockets are centrosymmetric relative to the rotation axis.
In some embodiments, the land further includes the first medial surface and the second medial surface, first medial surface with
An adjacent chip pocket of the knife-band is corresponding, and the second medial surface is corresponding with another adjacent chip pocket of the land, described
The joint of one end end face on first medial surface and the land far from the knife handle forms the first cutting edge.
In some embodiments, second medial surface connects with one end end face on the land far from the knife handle
Place's setting is jagged.
In some embodiments, the lateral surface of the land is provided with the first lug boss and the second lug boss, and described first
In the shape of a spiral, the chip space is between first lug boss and second lug boss for lug boss and the second lug boss.
In some embodiments, a side of first lug boss forms the second cutting edge, second lug boss
A side forms third cutting edge.
In some embodiments, there are two the chip space is total to, and two chip spaces are surrounded on the rotary shaft
Line, and two chip spaces are centrosymmetric relative to the rotation axis.
In some embodiments, the diameter of the processing department is equal to the diameter of the knife handle.
The beneficial effects of the utility model are: compared with prior art, the utility model provides a kind of high-precision inner-cooling
Drill bit includes: knife handle and processing department, wherein one end of the processing department is connect with one end of the knife handle, the processing department
Side is provided at least two chip pockets, forms land, the chip pocket and the sword between two adjacent chip pockets
In the shape of a spiral, the lateral surface of the land is provided with chip space to band.Make the sword of high-precision inner-cooling drill bit based on the above structure
When inwall processing with device to hole, the clast of generation can be timely entered in chip space, and be discharged through chip space, not only avoid compared with
A large amount of clast is present between the lateral surface of land and the inner wall in hole, causes the inner wall in hole scratch occur, influences the inner wall in hole
Roughness, and avoid the lateral surface excessive wear of land, to improve the machining accuracy to workpiece, and extend this
The service life of interior cold drill bit.
Detailed description of the invention
One or more embodiments are illustrated by the picture in corresponding attached drawing, these exemplary theorys
The bright restriction not constituted to embodiment, the element in attached drawing with same reference numbers label are expressed as similar element, remove
Non- to have special statement, composition does not limit the figure in attached drawing.
Fig. 1 is the structural schematic diagram of high-precision inner-cooling drill bit in the utility model embodiment.
Fig. 2 is another structural schematic diagram of high-precision inner-cooling drill bit in Fig. 1.
Fig. 3 is the structural schematic diagram of processing department in high-precision inner-cooling drill bit in Fig. 1.
Specific embodiment
For the ease of understanding the utility model, with reference to the accompanying drawings and detailed description, the utility model is carried out more
Detailed description.It should be noted that it can be directly in another element when element is expressed " being fixed on " another element
Upper or placed in the middle there may be one or more therebetween elements.When an element is expressed " connection " another element, it can
To be directly to another element or elements placed in the middle there may be one or more therebetween.This specification is used
Term " on ", "lower", "inner", "outside", the instructions such as " bottom " orientation or positional relationship be orientation based on the figure or
Positional relationship is merely for convenience of describing the present invention and simplifying the description, rather than the device or member of indication or suggestion meaning
Part must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
In addition, term " first ", " second " " third " etc. are used for description purposes only, it is not understood to indicate or imply relatively important
Property.
Unless otherwise defined, technical and scientific term all used in this specification and the skill for belonging to the utility model
The normally understood meaning of the technical staff in art field is identical.Art used in the description of the utility model in this specification
Language is only for the purpose of describing specific embodiments, and is not intended to limitation the utility model.Art used in this specification
Language "and/or" includes any and all combinations of one or more related listed items.
In addition, as long as technical characteristic involved in the utility model different embodiments disclosed below is each other
Not constituting conflict can be combined with each other.
Referring to Fig. 1, Fig. 1 is the structural schematic diagram of high-precision inner-cooling drill bit in the utility model embodiment.This is practical new
A kind of high-precision inner-cooling drill bit 100 that type embodiment provides, including knife handle 10, processing department 30, one end of knife handle 10 and processing department
30 one end connection.
Specifically, knife handle 10 is cylindrical body, high-precision inner-cooling drill bit 100 has rotation axis A, rotation axis A and knife handle
10 axis is overlapped.When being processed using high-precision inner-cooling drill bit 100, the high-precision inner-cooling drill bit 100 is around rotation axis A
It is rotated.
The processing department 30 is substantially cylindrical, and one end is connect with one end of the knife handle 10, and the processing department
30 diameter is equal to the diameter of the knife handle 10.
Specifically, the side of the processing department 30 is provided at least two chip pockets 31, the chip pocket 31 is added by described
One end of the Ministry of worker 30 extends to the other end face of the processing department 30.Land is formed between two adjacent chip pockets 31
32.The chip pocket 31 is equal with the quantity of land 32, and the chip pocket 31 and the land 32 are in the shape of a spiral.
In order to preferably cooperate the drilling of land 32, the chip pocket 31 is in the shape of a spiral.Each chip pocket 31 and a sword
Band 32 is connected, and is connected with another land 32.Chip pocket 31 is from the other end face of the processing department 30 to the knife handle 10
One end extends spirally, and its edge is held essentially constant perpendicular to the cross-sectional area on each section of rotation axis A.Chip pocket 31
For when land 32 carries out drilling processing to workpiece, the clast of drilling to be discharged in time, to be suitable for drill for high-speed.
In the present embodiment, there are two the chip pocket 31 is total to, and two chip pockets 31 and two lands
32 are surrounded on the rotation axis A, and are arranged alternately.Two chip pockets 31 and two lands 32 both with respect to
The rotation axis A is centrosymmetric.
Referring to Fig. 2, and combine Fig. 1, the other end face of the processing department 30 is circular conical surface, the processing department 30 it is another
One end end face includes one end end face far from the knife handle 10 of multiple lands 32.The land 32 includes an outside
Face, the first medial surface and the second medial surface, first medial surface is corresponding with an adjacent chip pocket 31 of the knife-band 32, the
Two medial surfaces are corresponding with another adjacent chip pocket 32 of the land 32.First medial surface with it is separate on the land 32
One end end face of the knife handle 10 connects, and the joint forms the first cutting edge 321.Second medial surface and the sword
Joint with one end end face on 32 far from the knife handle 10 is provided with inclined-plane.The inclined-plane makes second medial surface and institute
The joint for stating one end end face on land 32 far from the knife handle 10 forms notch 325.The advantages of structure, is, due to setting
It is equipped with notch 325, the area of the other end face of the processing department 30 can be reduced, to reduce the high-precision inner-cooling drill bit
The 100 feed resistance when carrying out drilling processing.Meanwhile the notch 325 can expand chip pocket 32 in the processing department 30
The size of the other end face upper opening, may make clast more swimmingly enter chip pocket 32 in, and can make more clasts into
Enter in chip pocket 32, and then preferably the clast of drilling is discharged.
The lateral surface of the land 32 is provided with chip space 326, and the chip space 326 is in the shape of a spiral.
Referring to Fig. 3, and combine Fig. 2, in the present embodiment, the chip space 326 altogether there are two, and two rows
Bits slot 326 is surrounded on the rotation axis A, and two chip spaces 326 are in center pair relative to the rotation axis A
Claim.
When high-precision inner-cooling drill bit 100 carries out drilling processing, the knife handle 10 of high-precision inner-cooling drill bit 100 is installed on brill
On the main shaft of bed, to drive high-precision inner-cooling drill bit 100 to rotate about axis A rotation.In high-precision inner-cooling drill bit 100 to workpiece
Hole carry out process in, when 32 device to hole of land inner sidewall cutting when, a large amount of clast will be generated.If land 32
The area of lateral surface is larger, necessarily causes between the lateral surface for having larger amount of clast to be present in land 32 and the inner sidewall in hole.
There is scratch in the inner sidewall for not only resulting in hole in this way, influences the roughness of the inner sidewall in hole, so that the workpiece after processing is not
It is up to standard；The lateral surface serious wear of land 32 is also resulted in, and then influences the service life of the high-precision inner-cooling drill bit 100.It is described
The lateral surface of land 32, which is provided with chip space 326, may make script to retain between the lateral surface of land 32 and the inner sidewall in hole
Clast enters in chip space 326, and is discharged through chip space 326, avoids the generation of above-mentioned phenomenon, extends the high-precision inner-cooling
The service life of drill bit 100.
The lateral surface of the land 32 is provided with the first lug boss 322 and the second lug boss 323, first lug boss
322 and second lug boss 323 in the shape of a spiral, the chip space 326 is located at first lug boss 322 and second lug boss
Between 323.A side of first lug boss 322 forms the second cutting edge, and a side of second lug boss 323 is formed
Third cutting edge.It is carried out in process in hole of the high-precision inner-cooling drill bit 100 to workpiece, the first cutting edge 321 acts on hole
Bottom wall, the second cutting edge and third cutting edge act on the inner sidewall in hole.It is cut in the inner sidewall of the second cutting edge device to hole
When cutting, the clast of generation can enter in chip space 326, be discharged through chip space 326, the inner sidewall of the third cutting edge device to hole is cut
When cutting, the clast of generation can enter in chip pocket 31, be discharged through chip pocket 31.And the inner sidewall in hole is by the second cutting edge and the
After the cutting of three cutting edges twice, surface is more smooth.
The beneficial effects of the utility model are: compared with prior art, the utility model provides a kind of high-precision inner-cooling
Drill bit 100 includes: knife handle 10 and processing department 30, wherein one end of the processing department 30 is connect with one end of the knife handle 10, institute
The side for stating processing department 30 is provided at least two chip pockets 31, forms land 32 between the chip pocket 31 of adjacent two,
In the shape of a spiral, the lateral surface of the land 32 is provided with chip space 326 for the chip pocket 31 and the land 32.More than being based on
When structure makes the inwall processing of 32 device to hole of land of high-precision inner-cooling drill bit 100, the clast of generation can timely enter chip removal
In slot 326, and be discharged through chip space 326, not only avoid larger amount of clast be present in land 32 lateral surface and hole it is interior
Between wall, the inner wall in hole is caused scratch occur, influence the roughness of the inner wall in hole, and the lateral surface for avoiding land 32 is excessive
Abrasion, to improve the machining accuracy to workpiece, and extends the service life of the interior cold drill bit 100.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；
Under the thinking of the utility model, it can also be combined between the technical characteristic in above embodiments or different embodiments,
Step can be realized with random order, and there are many other variations of the different aspect of the utility model as described above, be
Simplicity, they do not provide in details；Although the utility model is described in detail with reference to the foregoing embodiments, this
The those of ordinary skill in field it is understood that it is still possible to modify the technical solutions described in the foregoing embodiments,
Or equivalent replacement of some of the technical features；And these are modified or replaceed, and do not make the sheet of corresponding technical solution
Matter departs from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. a kind of high-precision inner-cooling drill bit has rotation axis characterized by comprising
Knife handle；
Processing department, one end are connect with one end of the knife handle, and the side of the processing department is provided at least two chip pockets, adjacent
Two chip pockets between form land, in the shape of a spiral, the lateral surface of the land is provided with row for the chip pocket and land
Consider slot to be worth doing.
2. high-precision inner-cooling drill bit according to claim 1, which is characterized in that the chip pocket by processing department the other end
End face is extended spirally to one end of the knife handle, and the chip pocket is along perpendicular to the cross on each section of the rotation axis
Sectional area remains unchanged.
3. high-precision inner-cooling drill bit according to claim 1, it is characterised in that: there are two the chip pocket is total, and two
A chip pocket and two lands are surrounded on the rotation axis, and are arranged alternately.
4. high-precision inner-cooling drill bit according to claim 3, which is characterized in that two chip pockets are relative to the rotary shaft
Line is centrosymmetric.
5. high-precision inner-cooling drill bit according to claim 1, which is characterized in that the land further include the first medial surface and
Second medial surface, first medial surface is corresponding with an adjacent chip pocket of the knife-band, the second medial surface and the land
Another adjacent chip pocket is corresponding, and first medial surface connects with one end end face on the land far from the knife handle
Place forms the first cutting edge.
6. high-precision inner-cooling drill bit according to claim 5, which is characterized in that on second medial surface and the land
The joint setting of one end end face far from the knife handle is jagged.
7. high-precision inner-cooling drill bit according to claim 1, which is characterized in that the lateral surface of the land is provided with first
Lug boss and the second lug boss, in the shape of a spiral, the chip space is located at described first for first lug boss and the second lug boss
Between lug boss and second lug boss.
8. high-precision inner-cooling drill bit according to claim 7, which is characterized in that a side of first lug boss is formed
A side of second cutting edge, second lug boss forms third cutting edge.
9. high-precision inner-cooling drill bit according to claim 1, which is characterized in that there are two the chip space is total, and two
A chip space is surrounded on the rotation axis, and two chip spaces are in center pair relative to the rotation axis
Claim.
10. high-precision inner-cooling drill bit according to claim 1, which is characterized in that the diameter of the processing department is equal to described
The diameter of knife handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821144358.1U CN208600782U (en) | 2018-07-19 | 2018-07-19 | High-precision inner-cooling drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821144358.1U CN208600782U (en) | 2018-07-19 | 2018-07-19 | High-precision inner-cooling drill bit |
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| Publication Number | Publication Date |
|---|---|
| CN208600782U true CN208600782U (en) | 2019-03-15 |
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ID=65669046
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821144358.1U Active CN208600782U (en) | 2018-07-19 | 2018-07-19 | High-precision inner-cooling drill bit |
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| Country | Link |
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| CN (1) | CN208600782U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114131085A (en) * | 2021-10-18 | 2022-03-04 | 台州中驰智谷科技有限公司 | Drill bit with fracture prevention and long service life |
-
2018
- 2018-07-19 CN CN201821144358.1U patent/CN208600782U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114131085A (en) * | 2021-10-18 | 2022-03-04 | 台州中驰智谷科技有限公司 | Drill bit with fracture prevention and long service life |
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