CN206689498U - A kind of hexagonal handle fried dough twist counterbore bores - Google Patents
A kind of hexagonal handle fried dough twist counterbore bores Download PDFInfo
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- CN206689498U CN206689498U CN201720244766.3U CN201720244766U CN206689498U CN 206689498 U CN206689498 U CN 206689498U CN 201720244766 U CN201720244766 U CN 201720244766U CN 206689498 U CN206689498 U CN 206689498U
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- drill bit
- counterbore
- bores
- fried dough
- dough twist
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Abstract
The utility model provides a kind of hexagonal handle fried dough twist counterbore and bored, more particularly to drill bit manufacturing field, including the first drill bit and the second drill bit, first drill bit is located at the center of inside of second drill bit, the diameter of second drill bit is more than the diameter of first drill bit, the axial axis of first drill bit and second drill bit is located along the same line, and first drill bit and second drill bit can Relative slidings.The utility model can easily process counterbore, reduce production cost, and adjustable drilling depth and more bit change, improve degree easy to use.
Description
Technical field
The utility model belongs to drill bit manufacturing field, and in particular to a kind of hexagonal handle fried dough twist counterbore bores.
Background technology
Fluted drill is to be relatively fixed the rotary cutting of 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, counterbore bore for fluted drill one kind, for processing counterbore, counterbore can be embedded to bolt head
Inside parts, no projection, so as to not change the surface structure of device, improve the aesthetics of device.Counterbore is generally through two
Secondary processing is realized, first with minor diameter fluted drill, drills out positioning hole, then drill bit is removed from rig and to be changed one and be relatively large in diameter
Drill bit, the positioning hole being first drilled is carried out secondary drilling, but pass through secondary drilling, bore position error is easily caused, if secondary open
Hole is forbidden, and is also needed to be processed further, is substantially increased production cost.
A kind of counterbore of patent bores (Application No. 201320223678.7), discloses a kind of fluted drill, including clamp holder and brill
Head, described drill bit are made up of main drill bit and secondary drill bit, and described clamp holder is internally hollow, one end of described clamp holder with
Drilling machine connects, and the other end of clamp holder is provided with secondary drill bit, and described main drill bit socket connection is in the inside of clamp holder, described main drill bit
In the lower section of secondary drill bit, main drill bit forms a step, the center line base of described main drill bit, secondary drill bit and clamp holder with secondary drill bit
This is located at straight line.Although the utility model reduces manufacturing cost, be conveniently replaceable drill bit, but its main drill bit can not change brill
Hole depth, can not meet the needs of different drilling depths, reduce degree easy to use.
Utility model content
In view of as described above, the purpose of this utility model provides a kind of hexagonal handle fried dough twist counterbore brill, it is heavy easily to process
Hole, to reduce production cost, and adjustable drilling depth and more bit change, to improve degree easy to use.
The utility model provides following technical scheme：
A kind of hexagonal handle fried dough twist counterbore bores, including the first drill bit and the second drill bit, wherein first drill bit is located at described
The center of inside of second drill bit, the diameter of second drill bit are more than the diameter of first drill bit, first drill bit and institute
The axial axis for stating the second drill bit is located along the same line, and first drill bit and second drill bit can Relative slidings；
First hole is drilled out by first drill bit, because the diameter of second drill bit is more than the diameter of first drill bit, and
Second drill bit is located at first drill bit periphery, therefore can drill out second hole above first hole drilled out, so as to
The processing of counterbore is easily realized, further through first drill bit and the Relative sliding of second drill bit, described can be changed
One drill bit is exposed to the length of second drill bit, so as to change the drilling depth that first drill bit drills out, and then improves
The convenient degree used, and by the way that second drill bit and first drill bit are departed from, the replacing of second drill bit can be achieved,
The replacing of drill bit is not only realized, improves degree easy to use, and compared to integral replacing drill bit, greatly reduce cost.
Preferably, second drill bit is hollow form, and first drill bit is provided with the inner chamber center of second drill bit, and
The length of second drill bit is less than the length of first drill bit；Second drill bit of this structure, described first can be made to bore
Head slides in second drill bit, so as to change the length that first drill bit exposes second drill bit, and then changes institute
The drilling depth of the first drill bit is stated, and by the way that second drill bit and first drill bit are departed from, can be achieved described second and bore
The replacing of head.
Preferably, the peripheral surface of second drill bit is provided with slip hole, and the slip hole is ellipticity, the slip hole
The first bolt is inside provided with, first bolt connects through the slip hole with the surface of first drill bit；Pass through the first spiral shell
The fixation of bolt can lock the first drill bit and second drill bit, avoid non-artificial Relative sliding, be easy to bore operation；Pass through
The bolt of turn first, make the first bolt along the slip hole directional-sliding, be easy to change first drill bit and expose described second
The length of drill bit, and then change the drilling depth of first drill bit, can meet the needs of different drilling depths, improve use
Convenient degree.
Preferably, the peripheral sides of second drill bit are that the relative side of the slip hole is provided with some positioning holes, institute
The arrangement of positioning hole spacing yi word pattern is stated, is provided with the second bolt in the positioning hole, first bit face is provided with a screw, institute
The second bolt is stated through the positioning hole with the screw of first drill bit to connect；The positioning hole of spacing arrangement, by changing
Become the screw relative position of the positioning hole and first drill bit, can accurately change first drill bit and described second and bore
The Relative sliding distance of head, so as to drill out accurately drilling depth.
Preferably, the end surface provided with drill lip of second drill bit is additionally provided with the first graduation mark, passes through described first
Graduation mark, it can intuitively control the drilling depth of the second drill bit.
Preferably, the end surface provided with drill lip of first drill bit is provided with the second graduation mark, is bored by observation second
The end of head is located at the position of second graduation mark, can further be precisely controlled the drilling depth of the first drill bit.
Preferably, the cross section of the other end of first drill bit is regular hexagon, and this structure is easy to first drill bit
On rig.
The beneficial effects of the utility model：
(1) the utility model accurately can once drill out counterbore by the mutual cooperation of the first drill bit and the second drill bit, and
Drilling depth can be changed, not only reduce manpower and production cost, and improve operating efficiency；
(2) second drill bit can be achieved by the way that second drill bit and first drill bit are departed from the utility model
Replacing, compared to integral replacing drill bit, reduce further production cost.
Brief description of the drawings
Accompanying drawing is used for providing further understanding to of the present utility model, and a part for constitution instruction, with this practicality
New embodiment is used to explain the utility model together, does not form to limitation of the present utility model.In the accompanying drawings：
Fig. 1 is the utility model left view；
Fig. 2 is the utility model right view；
Fig. 3 is the utility model top view.
In figure mark for：1st, the first drill bit；2nd, the second drill bit；3rd, positioning hole；4th, the first bolt；5th, the second bolt；6th, it is sliding
Move hole；7th, the first graduation mark；8th, the second graduation mark.
Embodiment
As shown in Figure 1, Figure 2 and Figure 3, a kind of hexagonal handle fried dough twist counterbore bores, including the first drill bit 1 and the second drill bit 2, and second
Drill bit 2 is hollow form, and the first drill bit 2 is located at the center of inside of the second drill bit 2, and the length of the second drill bit 2 is less than the first drill bit 1
Length, the diameter of the second drill bit 2 is more than the axial axis position of the diameter of the first drill bit 1, the first drill bit 1 and the second drill bit 2
In on same straight line, and the first drill bit 2 and the second drill bit 2 can Relative slidings；First hole is drilled out by the first drill bit 2, due to
The diameter of second drill bit 2 is more than the diameter of the first drill bit 1, and the second drill bit 2 be located at that the first drill bit 1 is peripheral, therefore can drill out
Second hole is drilled out above first hole, so as to easily realize the processing of counterbore, further through the first drill bit 1 and the second drill bit
2 Relative sliding, the length that the first drill bit 1 is exposed to the second drill bit 2 can be changed, so as to change the drilling that the first drill bit 1 drills out
Depth, so as to meet the needs of different drilling depths, and then improve the convenient degree used, and by by the second drill bit 2 and
One drill bit 1 departs from, and the replacing of the second drill bit 2 can be achieved, and not only increases degree easy to use, and bore compared to integral replacing
Head, greatly reduce cost.
As shown in Figures 2 and 3, the peripheral surface of the second drill bit 2 is provided with slip hole 6, and slip hole 6 is ellipticity, slip hole 6
The first bolt 4 is inside provided with, the first bolt 4 connects through slip hole 6 with the surface of the first drill bit 1；Pass through the fixation of the first bolt 4
First drill bit 1 and the second drill bit 2 can be locked, avoid non-artificial Relative sliding, be easy to bore operation；Pass through the spiral shell of turn first
Bolt 4, the first bolt 4 is set to be easy to change the length that the first drill bit 1 exposes the second drill bit 2, and then change along slip hole directional-sliding
The drilling depth of first drill bit 1, can meet the needs of different drilling depths, improve degree easy to use.
As shown in Figure 1, Figure 2 and Figure 3, the peripheral sides of the second drill bit 2 are that the relative side of slip hole 6 is provided with some positioning
Hole 3, the arrangement of the spacing yi word pattern of positioning hole 3, positioning hole 3 is interior to be provided with the second bolt 5, and the surface of the first drill bit 1 is provided with a screw,
Second bolt 5 connects through positioning hole 3 with the screw on the surface of the first drill bit 1；The positioning hole 3 of spacing arrangement, can pass through change
The position relative with the screw of the first drill bit 1 of positioning hole 3, it can accurately change the Relative sliding of the first drill bit 1 and the second drill bit 2
Distance, so as to drill out accurately drilling depth.
Such as Fig. 1 and Fig. 2, the end surface that the second drill bit 2 is provided with drill lip is additionally provided with the first graduation mark 7, passes through the first scale
Line 7, it can intuitively control the drilling depth of the second drill bit 2；The end surface provided with drill lip of first drill bit 1 is provided with the second scale
Line 8, the end by observing the second drill bit 2 are located at the position of the second graduation mark 8, further can precisely change the first drill bit 1
Drilling depth, the cross section of the other end of the first drill bit 1 is regular hexagon, and this structure is easy to the first drill bit 1 to be arranged on rig.
Preferred embodiment of the present utility model is these are only, is not limited to the utility model, although with reference to before
State embodiment the utility model is described in detail, for those skilled in the art, it still can be to preceding
State the technical scheme described in each embodiment to modify, or equivalent substitution is carried out to which part technical characteristic.It is all this
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc., the utility model should be included in
Protection domain within.
Claims (6)
1. a kind of hexagonal handle fried dough twist counterbore bores, it is characterised in that：Including the first drill bit and the second drill bit, first drill bit is located at
The center of inside of second drill bit, the diameter of second drill bit are more than the diameter of first drill bit, first drill bit
It is located along the same line with the axial axis of second drill bit, and first drill bit and second drill bit can be slided relatively
Move.
2. a kind of hexagonal handle fried dough twist counterbore according to claim 1 bores, it is characterised in that：Second drill bit is hollow
Shape, first drill bit is provided with the inner chamber center of second drill bit, and the length of second drill bit is less than described first and bored
The length of head.
3. a kind of hexagonal handle fried dough twist counterbore according to claim 1 or 2 bores, it is characterised in that：Outside second drill bit
Enclose surface and be provided with slip hole, the slip hole is ellipticity, is provided with the first bolt in the slip hole, first bolt passes through
The slip hole connects with the surface of first drill bit.
4. a kind of hexagonal handle fried dough twist counterbore according to claim 3 bores, it is characterised in that：The peripheral side of second drill bit
Face is that the relative side of the slip hole is provided with some positioning holes, and the positioning hole spacing yi word pattern arranges, in the positioning hole
Provided with the second bolt, first bit face is provided with a screw, and second bolt passes through the positioning hole and described first
The screw of drill bit connects.
5. a kind of hexagonal handle fried dough twist counterbore according to claim 1 bores, it is characterised in that：Being provided with for second drill bit is bored
The end surface of sword is additionally provided with the first graduation mark, and the end surface provided with drill lip of first drill bit is provided with the second graduation mark.
6. a kind of hexagonal handle fried dough twist counterbore according to claim 5 bores, it is characterised in that：The other end of first drill bit
Cross section be regular hexagon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720244766.3U CN206689498U (en) | 2017-03-14 | 2017-03-14 | A kind of hexagonal handle fried dough twist counterbore bores |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720244766.3U CN206689498U (en) | 2017-03-14 | 2017-03-14 | A kind of hexagonal handle fried dough twist counterbore bores |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206689498U true CN206689498U (en) | 2017-12-01 |
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ID=60442354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720244766.3U Active CN206689498U (en) | 2017-03-14 | 2017-03-14 | A kind of hexagonal handle fried dough twist counterbore bores |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108247780A (en) * | 2017-12-28 | 2018-07-06 | 浙江浪潮精密机械有限公司 | A kind of drilling depth positions adjustable counter bore bit and drilling depth adjusting method |
| CN109108340A (en) * | 2018-09-13 | 2019-01-01 | 郑忆依 | A kind of logical counterbore combined drill |
| CN112570757A (en) * | 2020-11-10 | 2021-03-30 | 安徽机电职业技术学院 | Counter bore processingequipment of area jetting function |
| CN112589161A (en) * | 2020-11-10 | 2021-04-02 | 安徽机电职业技术学院 | Drilling device and method for machining counter bore |
-
2017
- 2017-03-14 CN CN201720244766.3U patent/CN206689498U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108247780A (en) * | 2017-12-28 | 2018-07-06 | 浙江浪潮精密机械有限公司 | A kind of drilling depth positions adjustable counter bore bit and drilling depth adjusting method |
| CN109108340A (en) * | 2018-09-13 | 2019-01-01 | 郑忆依 | A kind of logical counterbore combined drill |
| CN112570757A (en) * | 2020-11-10 | 2021-03-30 | 安徽机电职业技术学院 | Counter bore processingequipment of area jetting function |
| CN112589161A (en) * | 2020-11-10 | 2021-04-02 | 安徽机电职业技术学院 | Drilling device and method for machining counter bore |
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