CN209532205U - A kind of twolip double flute drill bit structure - Google Patents
A kind of twolip double flute drill bit structure Download PDFInfo
- Publication number
- CN209532205U CN209532205U CN201920146002.XU CN201920146002U CN209532205U CN 209532205 U CN209532205 U CN 209532205U CN 201920146002 U CN201920146002 U CN 201920146002U CN 209532205 U CN209532205 U CN 209532205U
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- China
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- counterbore
- connector sleeve
- drill bit
- boss
- drill
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Abstract
The utility model discloses a kind of twolip double flute drill bit structure, including drill body and connector sleeve, wherein one end of connector sleeve is provided with the first cylindrical counterbore, the other end of connector sleeve is provided with the second counterbore of regular triangular prism shape, the axis of the circumscribed circle of second counterbore is overlapped with the axis of the first counterbore, the second through-hole for being connected to the first counterbore and the second counterbore is provided in connector sleeve, the axis of second through-hole is overlapped with the axis of the first counterbore, the tail portion of drill body is provided with the boss of the regular triangular prism shape for being inserted into the second counterbore, after boss is inserted into the second counterbore, the outer wall of boss is bonded with the inner wall of the second counterbore, boss and connector sleeve are locked by the bolt being threaded through in the second through-hole and boss；The utility model can be effectively reduced the replacement cost of drill bit, and can save the material for manufacturing drill bit.
Description
Technical field
The utility model relates to bit technique fields, and in particular to a kind of twolip double flute drill bit structure.
Background technique
Drill bit is indispensable handware in current product drill process, and current drill bit in use, works as brill
After wear and aging occurs in the head of head, entire drill bit can not be just carried out again using to will cause scrapping for entire drill bit.However
At present drill bit on the market in use, although the head of drill bit will appear abrasion and aging, the tail portion one of drill bit
As be all it is intact, so, as because the head of drill bit abrasion and aging after due to cause entire drill bit to be scrapped if, show
The waste that so will cause drill bit, that is, will cause the waste of material.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of twolip double flute drill bit structure, and passing through will on the market
Drill bit integrally split into connector sleeve and drill body after, drill body generate in use abrasion when, it is only necessary to replace
Drill body so can be effectively reduced the replacement cost of drill bit, and can save the material for manufacturing drill bit
Material.
The twolip double flute drill bit structure of the utility model, including drill body and connector sleeve, wherein one end of connector sleeve are set
Be equipped with the first cylindrical counterbore, the other end of connector sleeve is provided with the second counterbore of regular triangular prism shape, the second counterbore it is external
Round axis is overlapped with the axis of the first counterbore, and second for being connected to the first counterbore and the second counterbore is provided in connector sleeve and is led to
Hole, the axis of the second through-hole are overlapped with the axis of the first counterbore, and the tail portion of drill body is provided with for being inserted into the second counterbore
In regular triangular prism shape boss, after boss is inserted into the second counterbore, the outer wall of boss is bonded with the inner wall of the second counterbore, convex
Platform and connector sleeve are locked by the bolt being threaded through in the second through-hole and boss.
The twolip double flute drill bit structure of the utility model, wherein the left end of drill body, which is provided with, is inserted into boss
First annular chimb after in two counterbores for offseting with connector sleeve.
The twolip double flute drill bit structure of the utility model, wherein connector sleeve is towards being arranged on the outer wall of drill body one end
The second annular nib to offset after having in the collet that boss is inserted into bench drill for the end with collet.
The twolip double flute drill bit structure of the utility model, wherein connector sleeve is arranged on the outer wall far from drill body one end
Have and is oriented to for being oriented to the cooperation of the inner wall of the collet in bench drill with facilitating connector sleeve to be inserted into the annular in the collet in bench drill
Face.
After the utility model is by integrally splitting into connector sleeve and drill body for drill bit on the market, drill body makes
When with generating abrasion in the process, it is only necessary to replace drill body, so, can be effectively reduced being replaced with for drill bit
This, and the material for manufacturing drill bit can be saved.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:
Fig. 1 is the partial cross-sectional structural diagram of the utility model；
Fig. 2 is the left view structural representation of drill body；
Fig. 3 is the schematic perspective view of connector sleeve；
Fig. 4 is the schematic perspective view of connector sleeve.
Specific embodiment
Multiple embodiments that the utility model will be disclosed with schema below, as clearly stated, in many practices
Details will be explained in the following description.It should be appreciated, however, that the details in these practices does not apply this with limitation practical new
Type.That is, the details in these practices is non-essential in some embodiments of the utility model.In addition, for letter
For the sake of changing schema, some known usual structures and component will be painted it in the drawings in simply illustrative mode.
In addition, the description for being such as related to " first ", " second " in the present invention is used for description purposes only, and non-specifically
The meaning of order or cis-position is censured, it is also non-to limit the utility model, it is retouched just for the sake of difference with same technique term
The component stated or operation are not understood to indicate or imply its relative importance or implicitly indicate indicated technology
The quantity of feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy
Sign.It in addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution
Conjunction is not present, also not within the protection scope of the requires of the utility model.
The twolip double flute drill bit structure of the utility model, including drill body 1 and connector sleeve 2, wherein one end of connector sleeve 2
It is provided with the first cylindrical counterbore 21, the other end of connector sleeve 2 is provided with the second counterbore 22 of regular triangular prism shape, the second counterbore
The axis of 22 circumscribed circle is overlapped with the axis of the first counterbore 21, is provided in connector sleeve 2 for being connected to the first counterbore 21 and the
Second through-hole 23 of two counterbores 22, the axis of the second through-hole 23 are overlapped with the axis of the first counterbore 21, and the tail portion of drill body 1 is set
It is equipped with the boss 11 of the regular triangular prism shape for being inserted into the second counterbore 22, it is convex after boss 11 is inserted into the second counterbore 22
The outer wall of platform 11 is bonded with the inner wall of the second counterbore 22, and boss 11 and connector sleeve 2 are by being threaded through the second through-hole 23 and boss 11
In bolt 3 lock.
The left end of drill body 1 is provided with after boss 11 is inserted into the second counterbore 22 for offseting with connector sleeve 2
First annular chimb 12；By the setting of first annular chimb, after boss is inserted into the second counterbore, first annular chimb can
It offsets with the end of connector sleeve, so, enables to play the role of limit and positioning between drill body and connector sleeve.
Connector sleeve 2 is towards after being provided in the collet that boss 11 is inserted into bench drill on the outer wall of 1 one end of drill body
The second annular nib 25 to offset for the end with collet；After by using this structure, it is inserted into bench drill in connector sleeve
Collet in after, the second annular nib can offset with the end of collet, so, can in connector sleeve and when collet clamping
Realize the positioning to connector sleeve and position-limiting action.
Connector sleeve 2 is provided with for leading with the cooperation of the inner wall of the collet in bench drill on the outer wall far from 1 one end of drill body
To facilitate connector sleeve 2 to be inserted into the annular guide surface 24 in the collet in bench drill；After by using this structure, in connector sleeve
When with collet clamping in bench drill, annular guide surface can cooperate with the inner wall of collet to be oriented to, to facilitate connector sleeve to be inserted into bench drill
In collet in.
The utility model on drill body by being arranged the first rod portion and the second rod portion, and so, this is practical
It is novel to complete the drilling processing of counter sink on product by a drilling operation when carrying out bore operation to product,
Processing so as to the counter sink to product is brought convenience.
After the utility model is by integrally splitting into connector sleeve and drill body for drill bit on the market, drill body makes
When with generating abrasion in the process, it is only necessary to replace drill body, so, can be effectively reduced being replaced with for drill bit
This, and the material for manufacturing drill bit can be saved；When needing replacing drill body, first by connector sleeve from the folder in bench drill
It puts on and removes, then remove the bolt for being used for fixed operating sleeve and drill body, and then by the drill body of abrasion from connection
It puts on and disassembles, and new drill body is assembled on connector sleeve, female connector and drill bit sheet are finally close to by bolt lock again
Body, and connector sleeve is reinstalled onto the collet on bench drill.
Upper described only the embodiments of the present invention, is not intended to limit the utility model.For this field
For technical staff, various modifications and changes may be made to the present invention.The interior institute of all spirit and principle in the utility model
Any modification, equivalent substitution, improvement and etc. of work should all include within the scope of the claims of the utility model.
Claims (4)
1. a kind of twolip double flute drill bit structure, it is characterised in that: including drill body (1) and connector sleeve (2), the connector sleeve
(2) wherein one end is provided with cylindrical the first counterbore (21), and the other end of the connector sleeve (2) is provided with regular triangular prism shape
The second counterbore (22), the axis of the circumscribed circle of second counterbore (22) is overlapped with the axis of the first counterbore (21), the company
The second through-hole (23) for being connected to the first counterbore (21) and the second counterbore (22), second through-hole are provided in female connector (2)
(23) axis is overlapped with the axis of the first counterbore (21), and the tail portion of the drill body (1) is provided with for being inserted into second
The boss (11) of regular triangular prism shape in counterbore (22), after the boss (11) is inserted into the second counterbore (22), boss (11)
Outer wall be bonded with the inner wall of the second counterbore (22), the boss (11) and connector sleeve (2) are by being threaded through the second through-hole (23)
With bolt (3) locking in boss (11).
2. twolip double flute drill bit structure according to claim 1, which is characterized in that the left end of the drill body (1) is set
It is equipped with the first annular chimb (12) after boss (11) is inserted into the second counterbore (22) for offseting with connector sleeve (2).
3. twolip double flute drill bit structure according to claim 1, which is characterized in that the connector sleeve (2) is towards drill bit sheet
It offsets after being provided on the outer wall of body (1) one end in the collet that boss (11) is inserted into bench drill for the end with collet
Second annular nib (25).
4. twolip double flute drill bit structure according to claim 1, which is characterized in that the connector sleeve (2) is far from drill bit sheet
It is provided on the outer wall of body (1) one end for being oriented to the cooperation of the inner wall of the collet in bench drill to facilitate connector sleeve (2) to be inserted into
Annular guide surface (24) in collet in bench drill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920146002.XU CN209532205U (en) | 2019-01-28 | 2019-01-28 | A kind of twolip double flute drill bit structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920146002.XU CN209532205U (en) | 2019-01-28 | 2019-01-28 | A kind of twolip double flute drill bit structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209532205U true CN209532205U (en) | 2019-10-25 |
Family
ID=68271978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920146002.XU Active CN209532205U (en) | 2019-01-28 | 2019-01-28 | A kind of twolip double flute drill bit structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209532205U (en) |
-
2019
- 2019-01-28 CN CN201920146002.XU patent/CN209532205U/en active Active
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