CN206276951U - A kind of Novel twist drill - Google Patents
A kind of Novel twist drill Download PDFInfo
- Publication number
- CN206276951U CN206276951U CN201621420854.6U CN201621420854U CN206276951U CN 206276951 U CN206276951 U CN 206276951U CN 201621420854 U CN201621420854 U CN 201621420854U CN 206276951 U CN206276951 U CN 206276951U
- Authority
- CN
- China
- Prior art keywords
- cutting
- sleeve
- screw thread
- grip shank
- segment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of Novel twist drill, including cylindrical grip shank section, segment of cutting, segment of cutting includes a cutting point and the spiral helicine helical flute being connected with cutting point；Be machined with a tapped blind hole on an end face positioned at cylindrical grip shank section, and on the outside of the face of cylinder of cylindrical grip shank section one section be machined with external screw thread A, a radial direction through hole is machined with below external screw thread A；In the outer surface of segment of cutting, one section is machined with external screw thread B, external screw thread B is screwed togather in tapped blind hole, so as to segment of cutting be installed together with cylindrical grip shank section, and sleeve member is installed in the junction of cylindrical grip shank section and segment of cutting, sleeve member includes that big sleeve and big sleeve are integrally formed the small sleeve of setting, and is machined with internal thread on the inwall of big sleeve and small sleeve；The end that two ends are provided with radial direction through hole has the alignment pin of positioning sleeve, big sleeve contacts with positioning sleeve；Multiple cutting edges are provided with cutting point.
Description
Technical field
The utility model is related to bit technique field, more particularly to a kind of Novel twist drill.
Background technology
Fluted drill is the rotary cutting for being relatively fixed axis by it with the instrument of the circular hole of drilling workpiece.Because of its chip pocket
Curl and be similar to fried dough twist and gain the name.Helicla flute has 2 grooves, 3 grooves or more groove, but most commonly seen with 2 grooves.Fluted drill can be pressed from both sides
Hold and used on Handheld drill instrument manually, electrically or drilling machine, milling machine, lathe or even machining center.Drill bit material is general
It is high-speed tool steel or hard alloy.
Fluted drill of the prior art is usually to be integrally formed setting, so when the segment of cutting of fluted drill is damaged, just
Whole fluted drill scrapped, be both unfavorable for environmental protection, be unfavorable for again it is cost-effective, while segment of cutting of the prior art
Cutting point is easily damaged in workpiece fabrication is processed, and reduces its service life.
Utility model content
The utility model is in order to overcome deficiency of the prior art, there is provided a kind of Novel twist drill.
The utility model is to be achieved through the following technical solutions：
A kind of Novel twist drill, including cylindrical grip shank section, the segment of cutting positioned at the cylindrical grip shank section side,
The segment of cutting includes a cutting point and the spiral helicine helical flute being connected with cutting point；Clamped positioned at cylinder
A tapped blind hole, and the tapped blind hole are machined with one end face of handle section along the cylindrical grip shank section axial line side
To processing, and on the outside of the face of cylinder of cylindrical grip shank section one section be machined with external screw thread A, add in the lower section of external screw thread A
Work has a radial direction through hole；In the outer surface of the segment of cutting, one section is machined with external screw thread B, and external screw thread B is screwed togather installed in screw thread
In blind hole, so as to segment of cutting be installed together with cylindrical grip shank section, and in the cylindrical grip shank section and segment of cutting
Junction sleeve member is installed, the sleeve member includes that big sleeve and big sleeve are integrally formed the small sleeve of setting, and in institute
Internal thread is machined with the inwall for stating big sleeve and small sleeve；Being provided with two ends in described radial direction through hole has positioning sleeve
Alignment pin, the end of the big sleeve contacts with positioning sleeve；Multiple cutting edges are provided with the cutting point.
Further, the other end in the cylindrical grip shank section away from external screw thread A is provided with clamping part.
Further, the diameter with diameter greater than the segment of cutting of the cylindrical grip shank section.
Further, the big sleeve is screwed together by internal thread with external screw thread A, the small sleeve by internal thread with
External screw thread B is screwed together.
Further, the cutting edge is made of tungsten-molybdenum alloy or diamond, strengthens its structural strength, makes it not
Easily it is deformed, is broken such that it is able to improves the service life of cutting edge.
Compared with prior art, the beneficial effects of the utility model are：Segment of cutting and cylinder in the utility model
Grip shank section is further connected using threaded connection by sleeve member, and sleeve member contact prevents sleeve in alignment pin
Part is moved, and can strengthen the connection reliability of sleeve member, is so on the one hand convenient for dismounting, when segment of cutting is damaged, is easy to
Changed, and do not interfered with the structural strength of whole fluted drill；Multiple cutting edges, cutting edge are provided with by cutting point
Rotation direction with cutting point is identical, and cutting point carries out circumferential cutting, energy using cutting edge when processing is rotated to workpiece
Shear action is enough improved, and cutting edge is made of tungsten-molybdenum alloy or diamond, it is possible to increase the service life of cutting edge.
Brief description of the drawings
Fig. 1 is explosive view of the present utility model；
Fig. 2 is structural representation of the present utility model；
Fig. 3 is the A portions enlarged drawing in Fig. 1.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and implementation
Example, is further elaborated to the utility model.It should be appreciated that specific embodiment described herein is only used to explain
The utility model, is not used to limit the utility model.
As shown in Figure 1 and Figure 2, a kind of Novel twist drill, including cylindrical grip shank section 1, positioned at the cylinder clevis
Hold the segment of cutting 2 of 1 side of handle section, the diameter with diameter greater than the segment of cutting 2 of the cylindrical grip shank section 1.
As shown in figure 1, being machined with a tapped blind hole, and the spiral shell on an end face positioned at cylindrical grip shank section 1
Line blind hole is processed along 1 direction of axis line of the cylindrical grip shank section, and outside the face of cylinder of cylindrical grip shank section 1
One section of side is machined with external screw thread A11, a radial direction through hole 12 is machined with below external screw thread A11, away from external screw thread A11's
The other end of cylindrical grip shank section 1 is provided with clamping part 13.
As shown in figure 1, the segment of cutting 2 includes a cutting point 21 and the spiral helicine spiral being connected with cutting point 21
Chip area 22, by being provided with helical flute 22, is convenient for chip removal；In the outer surface of the segment of cutting 2, one section is machined with
External screw thread B23, external screw thread B23 is screwed togather in tapped blind hole, so as to segment of cutting 2 be arranged on cylindrical grip shank section 1
Together, and in the junction of the cylindrical grip shank section 1 and segment of cutting 2 sleeve member 3 is installed, the sleeve member 3 includes big
Sleeve 31 and big sleeve 31 are integrally formed the small sleeve 32 of setting, and add on the inwall of the big sleeve 31 and small sleeve 32
Work has internal thread 33, and the big sleeve 31 is screwed together by internal thread 33 with external screw thread A11, and the small sleeve 32 passes through interior spiral shell
Line 33 is screwed together with external screw thread B23.By being provided with sleeve member 3, and it is, using threaded connection, to be on the one hand convenient for
Dismounting, so when segment of cutting 2 is damaged, is convenient for changing, and do not interfere with the structural strength of whole fluted drill.
As shown in Figure 1 and Figure 2, being provided with two ends in described radial direction through hole 12 has the alignment pin 4 of positioning sleeve 41, institute
The end for stating big sleeve 31 contacts with positioning sleeve 41, by being provided with alignment pin 4, is easy to position sleeve member 3.
As shown in Figure 1, Figure 3, multiple cutting edges 24 are provided with the cutting point 21, by being provided with cutting edge 24,
Cutting edge 24 is identical with the rotation direction of cutting point 21, and cutting point 21 when rotated, week is carried out using cutting edge 24 to workpiece
To cutting, it is possible to increase shear action.The cutting edge 24 is made of tungsten-molybdenum alloy or diamond, strengthens its structure
Intensity, makes it be not easy to be deformed, be broken such that it is able to improve the service life of cutting edge 24.
General principle of the present utility model, principal character and advantage of the present utility model has been shown and described above.One's own profession
The technical staff of industry it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Be only preference of the present utility model, be not intended to limit the utility model, do not departing from the utility model spirit and scope
On the premise of, the utility model also has various changes and modifications, and these changes and improvements both fall within this claimed practicality
In new scope.The claimed scope of the utility model is by appending claims and its equivalent thereof.
Claims (5)
1. a kind of Novel twist drill, including cylindrical grip shank section（1）, positioned at the cylindrical grip shank section（1）Side is cut
Cut section（2）, the segment of cutting（2）Including a cutting point（21）And it is sharp with cutting（21）Connected spiral helicine debris
Groove（22）, it is characterised in that：
Positioned at cylindrical grip shank section（1）An end face on be machined with a tapped blind hole, and the tapped blind hole along institute
State cylindrical grip shank section（1）Direction of axis line is processed, and in cylindrical grip shank section（1）The face of cylinder outside one section plus
Work has external screw thread A（11）, in external screw thread A（11）Lower section be machined with a radial direction through hole（12）；
In the segment of cutting（2）One section of outer surface be machined with external screw thread B（23）, external screw thread B（23）Screw togather blind installed in screw thread
Kong Zhong, so as to by segment of cutting（2）With cylindrical grip shank section（1）It is installed together, and in the cylindrical grip shank section（1）With
Segment of cutting（2）Junction sleeve member is installed（3）, the sleeve member（3）Including big sleeve（31）With big sleeve（31）Integrally
It is molded the small sleeve for setting（32）, and in the big sleeve（31）And small sleeve（32）Inwall on be machined with internal thread（33）；
In described radial direction through hole（12）Inside being provided with two ends has positioning sleeve（41）Alignment pin（4）, the big sleeve（31）
End and positioning sleeve（41）Contact；
In the cutting point（21）On be provided with multiple cutting edges（24）.
2. a kind of Novel twist drill according to claim 1, it is characterised in that：Away from external screw thread A（11）Cylinder
Grip shank section（1）The other end be provided with clamping part（13）.
3. a kind of Novel twist drill according to claim 1, it is characterised in that：The cylindrical grip shank section（1）It is straight
Footpath is more than the segment of cutting（2）Diameter.
4. a kind of Novel twist drill according to claim 3, it is characterised in that：The big sleeve（31）By internal thread
（33）With external screw thread A（11）It is screwed together, the small sleeve（32）By internal thread（33）With external screw thread B（23）It is screwed together.
5. a kind of Novel twist drill according to claim 1, it is characterised in that：The cutting edge（24）Using tungsten-molybdenum alloy
Or diamond is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621420854.6U CN206276951U (en) | 2016-12-23 | 2016-12-23 | A kind of Novel twist drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621420854.6U CN206276951U (en) | 2016-12-23 | 2016-12-23 | A kind of Novel twist drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206276951U true CN206276951U (en) | 2017-06-27 |
Family
ID=59073338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621420854.6U Expired - Fee Related CN206276951U (en) | 2016-12-23 | 2016-12-23 | A kind of Novel twist drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206276951U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112453598A (en) * | 2019-09-06 | 2021-03-09 | 常州钧焯工具有限公司 | Thread milling cutter |
-
2016
- 2016-12-23 CN CN201621420854.6U patent/CN206276951U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112453598A (en) * | 2019-09-06 | 2021-03-09 | 常州钧焯工具有限公司 | Thread milling cutter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170627 Termination date: 20211223 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |