CN107717019A - A kind of double end pilot drill - Google Patents
A kind of double end pilot drill Download PDFInfo
- Publication number
- CN107717019A CN107717019A CN201711221534.7A CN201711221534A CN107717019A CN 107717019 A CN107717019 A CN 107717019A CN 201711221534 A CN201711221534 A CN 201711221534A CN 107717019 A CN107717019 A CN 107717019A
- Authority
- CN
- China
- Prior art keywords
- cutter head
- knife
- handle
- side edge
- sword
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/0063—Centerdrills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/02—Connections between shanks and removable cutting heads
Abstract
The invention discloses a kind of double end pilot drill, including first end sword, chip area, the first side edge, the first cutter head, block, spring washer, handle of a knife, fixed block, the second cutter head, the second side edge, the second chip area, the second end sword and holding tank.The both ends of the handle of a knife of the double end pilot drill of the present invention are all threadedly connected to the first cutter head, realize detachableization of pilot drill, handle of a knife may be reused, so as to reduce the waste that pilot drill can use part；The inside engaging of holding tank has the second cutter head, second cutter head is threadedly coupled with holding tank, and first cutter head it is identical with the equal size of the second cutter head, realize and the replacement between cutter head is being carried out in the case of being not introduced into new material, so as to extend the service life of pilot drill, the waste of material is further reduced, greatlys save manufacturing cost；Sword is held to be arranged to arcuate structure simultaneously, the resistance that blade is subject to when efficiently reducing drilling, so as to reduce the generation for the phenomenon that breaks.
Description
Technical field
The present invention relates to a kind of pilot drill, specially a kind of double end pilot drill, belong to field of machining.
Background technology
Pilot drill be in machine-building commonly use boring bar tool, it is mainly used for industrial drilling, be widely used in processing,
The industries such as machinery, shipbuilding.The apex point drift angle of pilot drill should be equal to or more than the micro- point angle finally to drill, if the drift angle of pilot drill
Smaller, then then micro- drilling is fashionable, and two cutting edges first contact workpiece than top, easily cause tipping.Before Drilling operation is carried out,
The initial apertures that a depth is 1~2 times of diameter first are bored with the good pilot drill of rigidity, ensure that normal drill bit carries out the standard of Drilling operation
True property, and chamfering is reserved for tapping, it is easy to tapping to process.
The cutter head of current double end pilot drill is typically all to be welded in handle of a knife thus not dismantling, and blade is in boring procedure
In be easily damaged, can only finally will appear from damage pilot drill integrally abandon, so as to cause the waste of material, so as to add
Job costs.
The content of the invention
The purpose of the present invention is that to solve the above problems and provides a kind of double end pilot drill, and its handle of a knife can repeat
Use, and the replacement between cutter head can be being carried out in the case of being not introduced into new material, so as to reduce the waste of material, greatly
Manufacturing cost is saved greatly.
The present invention is achieved through the following technical solutions above-mentioned purpose, a kind of double end pilot drill, including the first cutter head, described
One end of first cutter head is provided with first end sword, and the side of first cutter head is provided with the first side edge, and first side edge is located at
The side of the first end sword；The side of first cutter head is provided with the first chip area, and first chip area runs through described
The inside of first side edge, and first chip area runs through the side of the first end sword；One end weldering of first cutter head
Block is connected to, the side of the block is provided with the first fixed block, and the side of the block is welded with the second cutter head；Described second
One end of cutter head is provided with the second end sword, and the side of second cutter head is provided with the second side edge, and second side edge is located at described
The side of second end sword；The side of second cutter head is provided with the second chip area, and second chip area runs through described second
The inside of side edge, and second side edge runs through the inside of second end sword；Second cutter head is described through handle of a knife
The inside of handle of a knife is provided with holding tank, and second cutter head is through the holding tank, and second cutter head is threadedly connected to institute
State holding tank；One end of the handle of a knife is provided with spring washer, and second cutter head is through the spring washer, and the spring
Packing ring is sticked between the block and the handle of a knife；The side of the handle of a knife is welded with fixed block, and the handle of a knife through
The fixed block.
Preferably, in order to preferably cut target object, the first end sword, second end sword, first side edge
And second side edge has multiple, first side edge, second side edge, first chip area and second chip removal
Groove is helical structure, and first chip area is between two adjacent first side edges, and second chip area is located at
Between two neighboring second side edge.
Preferably, in order to reduce the resistance that blade is subject in boring procedure, the first end sword and second end sword
Side be arcuate structure, the top of the first end sword and second end sword is pyramidal structure, and first cutter head, institute
The axis for stating the second cutter head and the handle of a knife overlaps.
Preferably, for the ease of gripping cutter head, the side of the block is rectangular configuration, and the block is sticked in the bullet
Spring packing ring, the cross-sectional area of the spring washer are equal to the handle of a knife cross-sectional area, first cutter head and second cutter head
Size is identical, and second cutter head is sticked in the holding tank.
Preferably, in order that handle of a knife both ends uniform force, the fixed block are located at the middle part of the handle of a knife, the handle of a knife
Both ends are equipped with the holding tank, and two holding tanks, which engage, second cutter head, and the end of second cutter head
It is welded with first cutter head.
Preferably, for the ease of the clamping of the handle of a knife, the fixed block is regular hexagon structure, first cutter head,
Second cutter head and the handle of a knife are cylindrical structural, and the block and the spring washer are circular configuration.
The beneficial effects of the invention are as follows：The both ends of the handle of a knife of the double end pilot drill of the present invention are all threadedly connected to the first knife
Head, detachableization of pilot drill is realized, handle of a knife may be reused, so as to reduce the waste that pilot drill can use part；
The inside engaging of holding tank has the second cutter head, and the second cutter head is threadedly coupled with holding tank, and the first cutter head and the second cutter head are big
It is small identical, realize and the replacement between cutter head is being carried out in the case of being not introduced into new material, so as to extend the use of pilot drill
In the life-span, the waste of material is further reduced, greatlys save manufacturing cost；Sword is held to be arranged to arcuate structure simultaneously, effectively
The resistance that blade is subject to when reducing drilling, so as to reduce the generation for the phenomenon that breaks.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is the first cutter head of the present invention and the attachment structure schematic diagram of the second cutter head；
Fig. 3 is the internal structure schematic diagram of the handle of a knife of the present invention.
In figure：1st, first end sword, 2, chip area, the 3, first side edge, the 4, first cutter head, 5, block, 6, spring washer, 7, knife
Handle, 8, fixed block, the 9, second cutter head, the 10, second side edge, the 11, second chip area, the 12, second end sword, 13, holding tank.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Refer to shown in Fig. 1-3, a kind of double end pilot drill, including the first cutter head 4, one end of first cutter head 4 are provided with
First end sword 1, the side of first cutter head 4 is provided with the first side edge 3, and first side edge 3 is located at the first end sword 1
Side；The side of first cutter head 4 is provided with the first chip area 2, and first chip area 2 runs through first side edge 3
Inside, and first chip area 2 runs through the side of the first end sword 1；One end of first cutter head 4 is welded with block
5, the side of the block 5 is provided with the first fixed block 8, and the side of the block 5 is welded with the second cutter head 9；Second knife
First 9 one end is provided with the second end sword 12, and the side of second cutter head 9 is provided with the second side edge 10, and second side edge 10 is set
In the side of second end sword 12；The side of second cutter head 9 is provided with the second chip area 11, and second chip area 11 passes through
The inside of second side edge 10 is passed through, and second side edge 10 runs through the inside of second end sword 12；Described second
For cutter head 9 through handle of a knife 7, the inside of the handle of a knife 7 is provided with holding tank 13, second cutter head 9 through the holding tank 13,
And second cutter head 9 is threadedly connected to the holding tank 13；One end of the handle of a knife 7 is provided with spring washer 6, second knife
First 9 through the spring washer 6, and the spring washer 6 is sticked between the block 5 and the handle of a knife 7；The handle of a knife
7 side is welded with fixed block 8, and the handle of a knife 7 is through the fixed block 8.
As a kind of technical optimization scheme of the present invention, the first end sword 1, second end sword 12, first side
Sword 3 and second side edge 10 have multiple, first side edge 3, second side edge 10, first chip area 2 and institute
It is helical structure to state the second chip area 11, and first chip area 2 is located between two adjacent first side edges 3, and described
Second chip area 11 is located between two neighboring second side edge 10.
As a kind of technical optimization scheme of the present invention, the side of the first end sword 1 and second end sword 12 is arc
The top of shape structure, the first end sword 1 and second end sword 12 is pyramidal structure, and first cutter head 4, described second
The axis of cutter head 9 and the handle of a knife 7 overlaps.
As a kind of technical optimization scheme of the present invention, the side of the block 5 is rectangular configuration, and the block 5 engages
In the spring washer 6, the cross-sectional area of the spring washer 6 is equal to the cross-sectional area of handle of a knife 7, first cutter head 4 with
The size of second cutter head 9 is identical, and second cutter head 9 is sticked in the holding tank 13.
As a kind of technical optimization scheme of the present invention, the fixed block 8 is located at the middle part of the handle of a knife 7, the handle of a knife 7
Both ends be equipped with the holding tank 13, two holding tanks 13, which engage, second cutter head 9, and second cutter head
9 end is welded with first cutter head 4.
As a kind of technical optimization scheme of the present invention, the fixed block 8 is regular hexagon structure, first cutter head 4,
Second cutter head 9 and the handle of a knife 7 are cylindrical structural, and the block 5 and the spring washer 6 are circular knot
Structure.
In the use of the present invention, first, clamp fixed block 8 using clamping tool and then fix pilot drill, in drillman
In work, using the first cutter head 4 as work cutter head, and the second cutter head 9 is sticked in holding tank 13, and connect with the screw thread of handle of a knife 7
Connect, because the surface of first end sword 1 is arcuate structure, so as to reduce the resistance that blade is subject to, to prevent blade from crumbling, if
The side edge 3 of first end sword 1 or first is damaged, and the rectangular surfaces of block 5 are clamped using clamping tool, then turn block 5 until
First cutter head 4 completely disengages handle of a knife 7, the first cutter head 4 is sticked in holding tank 13 and is tightened block 5 again, by second
Cutter head 9 is used as work cutter head, and the both ends of handle of a knife 7 can be handled like this, and this process need not dismantle handle of a knife 7, very simply
It is convenient.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (6)
1. a kind of double end pilot drill, including the first cutter head (4), it is characterised in that：One end of first cutter head (4) is provided with first
Sword (1) is held, the side of first cutter head (4) is provided with the first side edge (3), and first side edge (3) is located at the first end
The side of sword (1)；The side of first cutter head (4) is provided with the first chip area (2), and first chip area (2) runs through institute
The inside of the first side edge (3) is stated, and first chip area (2) runs through the side of the first end sword (1)；First knife
One end of head (4) is welded with block (5), and the side of the block (5) is provided with the first fixed block (8), and the one of the block (5)
Side is welded with the second cutter head (9)；One end of second cutter head (9) is provided with the second end sword (12), the side of second cutter head (9)
Face is provided with the second side edge (10), and second side edge (10) is located at the side of second end sword (12)；Second cutter head
(9) side is provided with the second chip area (11), and second chip area (11) runs through the inside of second side edge (10), and
Second side edge (10) runs through the inside of second end sword (12)；Second cutter head (9) is through handle of a knife (7), institute
The inside for stating handle of a knife (7) is provided with holding tank (13), and second cutter head (9) is through the holding tank (13), and described second
Cutter head (9) is threadedly connected to the holding tank (13)；One end of the handle of a knife (7) is provided with spring washer (6), second cutter head
(9) through the spring washer (6), and the spring washer (6) is sticked between the block (5) and the handle of a knife (7)；
The side of the handle of a knife (7) is welded with fixed block (8), and the handle of a knife (7) is through the fixed block (8).
A kind of 2. double end pilot drill according to claim 1, it is characterised in that：The first end sword (1), second end
Sword (12), first side edge (3) and second side edge (10) have multiple, first side edge (3), second side edge
(10), first chip area (2) and second chip area (11) are helical structure, and first chip area (2) sets
Between two adjacent first side edges (3), and second chip area (11) located at two neighboring second side edge (10) it
Between.
A kind of 3. double end pilot drill according to claim 2, it is characterised in that：The first end sword (1) and described second
The side of end sword (12) is arcuate structure, and the top of the first end sword (1) and second end sword (12) is pyramidal structure, and
The axis of first cutter head (4), second cutter head (9) and the handle of a knife (7) overlaps.
A kind of 4. double end pilot drill according to claim 1, it is characterised in that：The side of the block (5) is rectangle knot
Structure, the block (5) are sticked in the spring washer (6), and the cross-sectional area of the spring washer (6) is equal to the handle of a knife (7)
Cross-sectional area, first cutter head (4) is identical with the second cutter head (9) size, and second cutter head (9) be sticked in it is described
Holding tank (13).
A kind of 5. double end pilot drill according to claim 4, it is characterised in that：The fixed block (8) is located at the handle of a knife
(7) middle part, the both ends of the handle of a knife (7) are equipped with the holding tank (13), and two holding tanks (13) engage
The second cutter head (9) is stated, and the end of second cutter head (9) is welded with first cutter head (4).
A kind of 6. double end pilot drill according to claim 5, it is characterised in that：The fixed block (8) is regular hexagon knot
Structure, first cutter head (4), second cutter head (9) and the handle of a knife (7) are cylindrical structural, and the block (5) and
The spring washer (6) is circular configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711221534.7A CN107717019A (en) | 2017-11-22 | 2017-11-22 | A kind of double end pilot drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711221534.7A CN107717019A (en) | 2017-11-22 | 2017-11-22 | A kind of double end pilot drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107717019A true CN107717019A (en) | 2018-02-23 |
Family
ID=61218826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711221534.7A Pending CN107717019A (en) | 2017-11-22 | 2017-11-22 | A kind of double end pilot drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107717019A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108380944A (en) * | 2018-05-07 | 2018-08-10 | 苏州弗士曼精密机械有限公司 | A kind of small-sized Two head drill bit |
-
2017
- 2017-11-22 CN CN201711221534.7A patent/CN107717019A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108380944A (en) * | 2018-05-07 | 2018-08-10 | 苏州弗士曼精密机械有限公司 | A kind of small-sized Two head drill bit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180223 |
|
| WD01 | Invention patent application deemed withdrawn after publication |