CN102500798A - Drill semi-finished product and manufacturing method thereof - Google Patents
Drill semi-finished product and manufacturing method thereof Download PDFInfo
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- CN102500798A CN102500798A CN2011104430556A CN201110443055A CN102500798A CN 102500798 A CN102500798 A CN 102500798A CN 2011104430556 A CN2011104430556 A CN 2011104430556A CN 201110443055 A CN201110443055 A CN 201110443055A CN 102500798 A CN102500798 A CN 102500798A
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Abstract
The invention discloses a drill semi-finished product, comprising a handle part for clamping the drill semi-finished product and a head part (2) of a drill head part (6) which is substantially cylindrical and is formed by a tool for machining drill screws and/or a cutting tool. The handle part comprises a first area (1) with an arc surface and a second area with an substantially polygonal or columnar outer outlet. The first area (1), the second area and the heat part (2) are manufactured by an extrusion molding method. The invention can solve the defects in prior art, and provides the drill semi-finished product with the advantages of low production cost, reliable quality and high production efficiency.
Description
Technical field
The present invention relates to a kind of drill blank and manufacturing approach thereof.
Background technology
Under the prior art, drill bit comprises a polygonal bit sub and the drill bit head with cutting edge.During drill blank, be divided into two processes: a process is the bit sub process, in this process; After columniform bit sub clamping; The drill bit pommel is carried out cut: a process is the processing of drill bit head, after bit sub machines, uses anchor clamps that bit sub is carried out clamping; Drill bit head is processed, processed cutting edge.The complete drill bit of final formation.The problem of this technology is the process trouble, and productivity ratio is low, because bit sub in use is not the critical component of processing; Be mainly used in machine and be connected; Play fixing effect, so, be not necessarily to need cut to accomplish to bit sub; Can adopt the relatively poor processing technology of other precision to accomplish, thereby reach the purpose that reduces the production cost on the basis that guarantees product quality.
Summary of the invention
In order to overcome the deficiency that prior art exists, the object of the present invention is to provide that a kind of production cost is low, reliable in quality, drill blank that production efficiency is high.
For reaching above purpose; The invention provides a kind of drill blank; It comprises the head that is used to clamp the shank of described drill blank and is essentially cylindrical, constitutes drill bit head through processing drill bit spiral and/or cutting edge; Described shank comprises that a first area and an outline with arcuate surface is second area polygonal, column basically, and described first area, second area and head are processed through extrusion process.
Further improvement of the present invention is that described second area comprises a plurality of first planes and be arranged on second plane between described first plane at interval that described first plane is provided with the circular groove to lower recess.
Further improvement of the present invention is, in a plurality of first planes of described second area at least wherein two be oppositely arranged and parallel to each other
The invention also discloses a kind of drill blank preparation method, when making drill blank, described first area, second area and head are one-body molded through extrusion process.
The invention has the beneficial effects as follows: thus use the method one of extrusion modling to make first area, second area and head formation drill blank; Reduce the production cost on the basis that guarantees product quality thereby reach, and improve product and make efficient more than one times.
Description of drawings
Accompanying drawing 1 is the structural representation of a kind of drill blank of the present invention;
Accompanying drawing 2 is the structural representation after a kind of drill blank of the present invention manufactures drill bit.
Wherein: 1, first area; 2, head; 3, second plane; 4, first plane; 5, circular groove; 6, drill bit head.
The specific embodiment
Set forth in detail in the face of preferred embodiment of the present invention down, thereby protection scope of the present invention is made more explicit defining so that advantage of the present invention and characteristic can be easier to it will be appreciated by those skilled in the art that.
Referring to accompanying drawing 1 and accompanying drawing 2; A kind of drill blank; The head 2 that it comprises the shank of the drill blank that is used to clamp and is essentially cylindrical, constitutes drill bit head 6 through processing drill bit spiral and/or cutting edge; Shank comprises that a first area 1 and an outline with arcuate surface is second area polygonal, column basically, when the processing drill bit, second area is put into inner continuation of machine table fix; Can carry out in processing drill blank, manufacture drill bit head 6 at the head 2 manufacturing cutting edges and/or the spiral of drill blank through methods such as cuttings.
Second area comprises 4 first planes 4 and is arranged on 4 second planes 3 between first plane 4 at interval, all is provided with the circular groove 5 to lower recess on each first plane 4.Two, two are provided with and two, two parallel to each other mutually in 4 first planes 4 of second area.The width on first plane 4 is greater than the width on second plane 3, and fixedly the time, machine can stretch in the circular groove 5 in first plane 4, has guaranteed fixed effect to second area.
The preparation method of drill blank does among the present invention, and is in manufacture process that first area 1, second area and head 2 is one-body molded through extrusion process.Because bit sub in use is not the critical component of processing; Be mainly used in machine and be connected; Play fixing effect, so, be not necessarily to need cut to accomplish to bit sub; Can adopt the relatively poor processing technology of other precision to accomplish, thereby reach the purpose that reduces the production cost on the basis that guarantees product quality.
Above embodiment only is explanation technical conceive of the present invention and characteristics; Its purpose is to let the people that is familiar with this technology understand content of the present invention and implements; Can not limit protection scope of the present invention with this, all equivalences that spirit is done according to the present invention change or modification all is encompassed in protection scope of the present invention.
Claims (4)
1. drill blank; It comprises the head (2) that is used to clamp the shank of described drill blank and is essentially cylindrical, constitutes drill bit head (6) through processing drill bit spiral and/or cutting edge; It is characterized in that: described shank comprises that a first area (1) and an outline with arcuate surface is second area polygonal, column basically, and described first area (1), second area and head (2) are processed through extrusion process.
2. drill blank according to claim 1; It is characterized in that: described second area comprises a plurality of first planes (4) and is arranged on second plane (3) between described first plane (4) at interval that described first plane (4) is provided with the circular groove (5) to lower recess.
3. drill blank according to claim 1 is characterized in that: in a plurality of first planes (4) of described second area at least wherein two be oppositely arranged and parallel to each other.
4. drill blank preparation method is characterized in that: make as in the claim 1 to 3 during each described drill blank, it is one-body molded that described first area (1), second area and head (2) pass through extrusion process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104430556A CN102500798A (en) | 2011-12-27 | 2011-12-27 | Drill semi-finished product and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104430556A CN102500798A (en) | 2011-12-27 | 2011-12-27 | Drill semi-finished product and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102500798A true CN102500798A (en) | 2012-06-20 |
Family
ID=46212963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104430556A Pending CN102500798A (en) | 2011-12-27 | 2011-12-27 | Drill semi-finished product and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102500798A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102950443A (en) * | 2012-11-07 | 2013-03-06 | 方大控股有限公司 | Production method for C-shaped handle (four-groove square handle) drill bit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1144149A (en) * | 1995-06-17 | 1997-03-05 | 希尔蒂股份公司 | Method for making rotary drill tool |
| CN100493823C (en) * | 2006-05-30 | 2009-06-03 | 江苏飞达工具股份有限公司 | Processing method of full-grinding twist drill after plastic deformation, and machining and positioning apparatus |
| CN101793126A (en) * | 2009-02-02 | 2010-08-04 | 祖特斯塔股份公司 | Drill blank, drill bit and manufacture method thereof |
-
2011
- 2011-12-27 CN CN2011104430556A patent/CN102500798A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1144149A (en) * | 1995-06-17 | 1997-03-05 | 希尔蒂股份公司 | Method for making rotary drill tool |
| CN100493823C (en) * | 2006-05-30 | 2009-06-03 | 江苏飞达工具股份有限公司 | Processing method of full-grinding twist drill after plastic deformation, and machining and positioning apparatus |
| CN101793126A (en) * | 2009-02-02 | 2010-08-04 | 祖特斯塔股份公司 | Drill blank, drill bit and manufacture method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102950443A (en) * | 2012-11-07 | 2013-03-06 | 方大控股有限公司 | Production method for C-shaped handle (four-groove square handle) drill bit |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120620 |