CN102756146A - Length-adjustable drill bit - Google Patents
Length-adjustable drill bit Download PDFInfo
- Publication number
- CN102756146A CN102756146A CN2011101076004A CN201110107600A CN102756146A CN 102756146 A CN102756146 A CN 102756146A CN 2011101076004 A CN2011101076004 A CN 2011101076004A CN 201110107600 A CN201110107600 A CN 201110107600A CN 102756146 A CN102756146 A CN 102756146A
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- China
- Prior art keywords
- drill bit
- card
- bit
- bit part
- clamping piece
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Abstract
The invention discloses a length-adjustable drill bit, which is arranged within a drill bit fixing groove; the drill bit comprises a drill bit straight shank part and a drill bit part on which a rotating thread is arranged; the drill bit further comprises a first clamping piece and a second clamping piece, wherein the second clamping piece is arranged in the fixing groove; the first clamping piece can slide along the second clamping piece; a spring is arranged between a fixed bottom end of the second clamping piece and the bottom end of the first clamping piece; moreover, a threaded hole is formed in the first clamping piece; a fixing screw is arranged in the threaded hole; and the first clamping piece is connected with the drill bit straight shank part. As a first clamping part and a second clamping part capable of sliding relative to each other are arranged, the length of the drill bit disclosed by the invention can be adjusted through adjusting the length of the first clamping part on the second clamping part, so that the drill has the technical advantage of length adjustment; and therefore, the drill bit disclosed by the invention has the advantages of high use efficiency and wide application range.
Description
Technical field
The present invention relates to a kind of drill bit, especially refer to when in use a kind ofly, can change the drill bit of its drill bit length according to different needs.
Background technology
Drill bit is to use the widest aperture knife tool, and it can cause hole on workpiece or rock, and up to the present, rig has developed into the epoch of electric drilling machine.
In general, the shank form of drill bit has two kinds of staight shank and taper shanks, its add man-hour the former be clipped in the drill chuck, the latter is inserted in the taper hole of machine tool chief axis or tailstock.General drill bit is made with high-speed steel.
Wherein, the fluted drill of seting welding carbide blade or crown is suitable for processing cast iron, hardened steel and nonmetallic materials etc., and the whole hard alloy small fried dough twists bores and is used to process instrument part and printed substrate etc.
But, present drill bit in general, its drill bit setting tool is more fixing; Therefore, under the environment that some length need be regulated, it can not be according to the difference of environmental requirement and in time changes the rig environment; Therefore, this also gives in the design of drill bit and has brought certain challenge.
Summary of the invention
The technical problem that the present invention will solve is to solve the shortcoming that existing drill bit can not freely be regulated length, and a kind of drill bit that can regulate length is provided, and said drill bit has service efficiency height, technological merit applied widely.
The present invention solves the problems of the technologies described above the technical scheme that adopted like following description:
A kind of drill bit that can regulate length, it is inner to be arranged on the drill bit holddown groove, comprises; Drill bit staight shank portion with above be provided with the bit head of rotary threaded, also comprise first card-bit part and second card-bit part; Said second card-bit part is arranged on holddown groove inside, and said first card-bit part can slide along said second card-bit part, is provided with a spring between the fixedly bottom of second card-bit part and the bottom of said first card-bit part; And; Have a screw on said first card-bit part, its set inside has a fixed screw, and said first card-bit part and drill bit staight shank portion link together.
Further, preferred construction is that said second card-bit part is to be fixed in the groove, and it cannot move with respect to holddown groove.
Further, preferred construction is, said first card-bit part comprises the lateral part on top plan portion and both sides, and, the length of said lateral part be wider than second card-bit part width and less than the internal diameter width of said holddown groove.
Further, preferred construction is that said first card-bit part and drill bit staight shank portion become one, and said card-bit part is the flat structure.
The present invention is after having taked technique scheme; Owing to be provided with the first screens portion and the second screens portion that can slide over each other; Therefore; It can carry out length adjustment through regulating the length of the first screens portion in the said second screens portion, and then makes drill bit have the technological merit that can regulate length, from but drill bit of the present invention has service efficiency height, technological merit applied widely.
Description of drawings
Below in conjunction with accompanying drawing the present invention is carried out detailed description, so that above-mentioned advantage of the present invention is clearer and more definite.
Fig. 1 is the structural representation of an embodiment of drill bit of the present invention;
Fig. 2 is the structure side view of another embodiment of drill bit of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is carried out detailed description.
Fig. 1 is the structural representation of an embodiment of drill bit of the present invention;
Fig. 2 is the structure side view of another embodiment of drill bit of the present invention.
As shown in the figure, said drill bit 4 is arranged on drill bit holddown groove 1 inside; Comprise, drill bit staight shank portion with above be provided with the bit head of rotary threaded, and; Also comprise; First card-bit part and second card-bit part, said second card-bit part is arranged on holddown groove inside, and is connected and fixed with a fixture 6.And; Said first card-bit part 3 can slide along said second card-bit part 2; Be provided with a spring 7 between the fixedly bottom of second card-bit part and the bottom of said first card-bit part, and, have a screw 5 on said first card-bit part; Its set inside has a fixed screw, and said first card-bit part and drill bit staight shank portion link together.
Among a preferred embodiment, as shown in Figure 2, said first card-bit part comprises the lateral part on top plan portion and both sides; And; The length of said lateral part be wider than second card-bit part width and less than the internal diameter width of said holddown groove, and, for easy signal; Among this sketch map, said spring is not shown.
In fact, even without spring, also can reach the similar techniques effect.
Among another embodiment, as shown in Figure 1, said first card-bit part and drill bit staight shank portion become one, and said card-bit part is the flat structure, and, directly on the card-bit part of said flat, have screw hole.
The present invention is after having taked technique scheme; Owing to be provided with the first screens portion and the second screens portion that can slide over each other; Therefore; It can carry out length adjustment through regulating the length of the first screens portion in the said second screens portion, and then makes drill bit have the technological merit that can regulate length, from but drill bit of the present invention has service efficiency height, technological merit applied widely.
It should be noted that; Above-mentioned specific embodiment only is exemplary; Under above-mentioned instruction of the present invention, those skilled in the art can carry out various improvement and distortion on the basis of the foregoing description, and these improve or distortion drops in protection scope of the present invention.
It will be understood by those skilled in the art that top specific descriptions just in order to explain the object of the invention, are not to be used to limit the present invention.Protection scope of the present invention is limited claim and equivalent thereof.
Claims (4)
1. the drill bit that can regulate length is arranged on drill bit holddown groove inside, comprises; Drill bit staight shank portion with above be provided with the bit head of rotary threaded, it is characterized in that, also comprise; First card-bit part and second card-bit part, said second card-bit part is arranged on holddown groove inside, and said first card-bit part can slide along said second card-bit part; Be provided with a spring between the fixedly bottom of second card-bit part and the bottom of said first card-bit part, and, have a screw on said first card-bit part; Its set inside has a fixed screw, and said first card-bit part and drill bit staight shank portion link together.
2. the drill bit that can regulate length according to claim 1 is characterized in that, said second card-bit part is to be fixed in the groove, and it cannot move with respect to holddown groove.
3. the drill bit that can regulate length according to claim 1 and 2; It is characterized in that; Said first card-bit part comprises the lateral part on top plan portion and both sides, and, the length of said lateral part be wider than second card-bit part width and less than the internal diameter width of said holddown groove.
4. the drill bit that can regulate length according to claim 1 is characterized in that, said first card-bit part and drill bit staight shank portion become one, and said card-bit part is the flat structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101076004A CN102756146A (en) | 2011-04-28 | 2011-04-28 | Length-adjustable drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101076004A CN102756146A (en) | 2011-04-28 | 2011-04-28 | Length-adjustable drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102756146A true CN102756146A (en) | 2012-10-31 |
Family
ID=47050927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101076004A Withdrawn CN102756146A (en) | 2011-04-28 | 2011-04-28 | Length-adjustable drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102756146A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107771548A (en) * | 2017-11-20 | 2018-03-09 | 梧州市雅正农业科技有限公司 | A kind of tea tree Telescopic garden shears |
| CN108842658A (en) * | 2018-07-02 | 2018-11-20 | 安徽昂然节能环保科技有限公司 | A kind of traffic sign equipment for being easy to go up and down |
| CN111980589A (en) * | 2019-05-24 | 2020-11-24 | 江苏叁陆零工具有限公司 | Multifunctional drill bit |
-
2011
- 2011-04-28 CN CN2011101076004A patent/CN102756146A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107771548A (en) * | 2017-11-20 | 2018-03-09 | 梧州市雅正农业科技有限公司 | A kind of tea tree Telescopic garden shears |
| CN108842658A (en) * | 2018-07-02 | 2018-11-20 | 安徽昂然节能环保科技有限公司 | A kind of traffic sign equipment for being easy to go up and down |
| CN111980589A (en) * | 2019-05-24 | 2020-11-24 | 江苏叁陆零工具有限公司 | Multifunctional drill bit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20121031 |
|
| DD01 | Delivery of document by public notice |
Addressee: Suzhou Tabinuo Electromechanical Co., Ltd. Document name: Notification of Approving Refund |
|
| DD01 | Delivery of document by public notice |
Addressee: Suzhou Tabinuo Electromechanical Co., Ltd. Document name: Notification of Passing Examination on Formalities |