CN202336615U - Assembled taper twist drill - Google Patents
Assembled taper twist drill Download PDFInfo
- Publication number
- CN202336615U CN202336615U CN2011204832865U CN201120483286U CN202336615U CN 202336615 U CN202336615 U CN 202336615U CN 2011204832865 U CN2011204832865 U CN 2011204832865U CN 201120483286 U CN201120483286 U CN 201120483286U CN 202336615 U CN202336615 U CN 202336615U
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- CN
- China
- Prior art keywords
- hole
- drill
- groove
- guide way
- boss
- 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.)
- Expired - Fee Related
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Abstract
The utility model belongs to the technical field of metal cutting tools, in particular to an assembled taper twist drill, comprising a working part and a handle part, wherein the twist drill is formed by connecting a drill with the handle part through a guide part; a boss formed on one end of the drill is inserted into a groove of the guide body matched with the boss and is penetrated through a through hole one the side of the boss and a through hole formed on the side of the guide body groove through a connection bar with a through hole; a hexahedron formed on the other end of the guide body is inserted into a handle part groove matched with the hexahedron and is penetrated through a side wall through hole of the handle part groove and a through hole formed on the side of the hexahedron formed on the guide body through a connection block with a groove; the guide body is provided with through holes axially; and a positioning pin penetrates the through holes which are axially arranged on the guide body, the connection bar with a through hole and a groove arranged at the through hole penetrating the side of the boss. The assembled taper twist drill disclosed by the utility model has the advantages of low cost and convenient assembly, can save energy and can be widely applied to the drill holes and chambering holes of a machine tool.
Description
Technical field
The utility model belongs to the metal cutting tool technical field, refers in particular to a kind of assembly type taper drill.
Background technology
Fluted drill is as a kind of important aperture knife tool; It both can be holed on solid material; Also can reaming on former porose basis, it can be used to working steel products, cast iron, also can process aluminium, copper and alloy thereof, even can also process nonmetallic materials such as organic material and timber.Therefore, 18th century, fluted drill was able to extensive use always so far, and fluted drill can be divided into straight shank twist drill and taper drill according to boring the tenon classification; And taper drill mainly is to cut away metal through the drill bit rotation, generally with carbon steel SK, or high-speed steel SKH2; Materials such as SKH3 form through quenching, grinding after the tempering heat treatment through system of milling or rolling again, are used for the boring processing on metal or other material; Its scope of application is extremely wide, can apply to drilling machine, lathe, milling machine, uses on the toolroom machines such as electric hand drill; At present, the major diameter taper drill is when machining hole, and same material is because the linear velocity of each point is different; Therefore the wearing and tearing of each point are also different on the drill bit, and submarginal wearing and tearing are than the wear block near the center, and large diameter fluted drill makes damage more easily; Need all change whole fluted drill after the damage, so drill bit damage to need and will change fluted drill and cause great waste, thereby improved processing cost.
Summary of the invention
The purpose of the utility model provides a kind of simple in structure, with low cost, easy to assembly and energy-conservation assembly type taper drill.
The purpose of the utility model is achieved in that a kind of assembly type taper drill; Comprise operate portions and shank; Fluted drill is formed by connecting through guide way and shank on drill bit; The boss of described drill bit one end moulding inserts in the guide way groove that is mated and passes with the connection strap that is provided with through hole the through hole of side moulding of through hole and the guide way groove of boss side surfaces; The hexahedron of described guide way other end moulding inserts in the shank flutes that is mated and with the through hole that the hexahedron side of moulding on sidewall through hole and the guide way that reeded contiguous block passes shank flutes is set; Guide way is provided with through hole vertically, and alignment pin passes through hole that guide way is provided with vertically successively and is provided with the connection strap of through hole, and is arranged on the groove that runs through the boss side surfaces through hole.
The helical angle of said fluted drill is 30 degree, and the helical angle of guide way is 0 degree.
The drift angle of said fluted drill is 140 degree.
The said groove cross section that reeded contiguous block is set is a U-shaped.
The utility model is compared the outstanding and beneficial technical effects of prior art:
1, the utility model adopts modular construction, and is easy to assembly, reduced the use of expensive steel, and reduced material cost.
2, the utility model is when processing work, handling ease, and more bit change is convenient, is applicable to boring and reaming.
Description of drawings
Fig. 1 looks partial sectional view for the master of the utility model;
Fig. 2 looks enlarged drawing for the left side of the utility model;
Fig. 3 is the partial sectional view of overlooking of the utility model;
Fig. 4 is the front view of alignment pin;
Fig. 5 is that the master that drill bit, guide way and shank are connected looks partial view;
Fig. 6 is the enlarged diagram of connection strap;
Fig. 7 is the enlarged diagram of contiguous block.
1-drill bit among the figure, 2-connection strap, 3-guide way, 4-hexahedron, 5-shank, 6-groove, 7-alignment pin, 8-boss, 9-contiguous block, 10-contiguous block groove, 11-connection strap through hole, 12,14, the 15-through hole, 13-sidewall through hole.
The specific embodiment:
The utility model is further described with specific embodiment below in conjunction with accompanying drawing, referring to Fig. 1-2:
A kind of assembly type taper drill; Comprise operate portions and shank 5; Fluted drill is formed by connecting through guide way 3 and shank 5 on drill bit 1; The boss 8 of described drill bit 1 one end moulding inserts in the guide way groove that is mated and passes with the connection strap 2 that is provided with through hole the through hole of side moulding of through hole 15 and the guide way groove of boss side surfaces; The hexahedron 4 of described guide way 3 other end moulding inserts in the shank flutes that is mated and with the through hole 12 that the hexahedron side of moulding on sidewall through hole 13 that reeded contiguous block 9 passes shank flutes and the guide way is set; Guide way 3 is provided with through hole 14 vertically, and alignment pin 7 passes through hole 14 that guide way is provided with vertically successively and is provided with the connection strap 2 of through hole, and is arranged on the groove 6 that runs through the boss side surfaces through hole.
The helical angle of said fluted drill is 30 degree, and the helical angle of guide way is 0 degree.
The drift angle of said fluted drill is 140 degree.
The said groove cross section that reeded contiguous block is set is a U-shaped.
The foregoing description is merely the preferred embodiment of the utility model, is not the protection domain that limits the utility model according to this, so: the equivalence that all structures according to the utility model, shape, principle are done changes, and all should be covered by within the protection domain of the utility model.
Claims (4)
1. assembly type taper drill; Comprise operate portions and shank; It is characterized in that: fluted drill is formed by connecting through guide way and shank on drill bit; The boss of described drill bit one end moulding inserts in the guide way groove that is mated and passes with the connection strap that is provided with through hole the through hole of side moulding of through hole and the guide way groove of boss side surfaces; The hexahedron of described guide way other end moulding inserts in the shank flutes that is mated and with the through hole that the hexahedron side of moulding on sidewall through hole and the guide way that reeded contiguous block passes shank flutes is set; Guide way is provided with through hole vertically, and alignment pin passes through hole that guide way is provided with vertically successively and is provided with the connection strap of through hole, and is arranged on the groove that runs through the boss side surfaces through hole.
2. a kind of assembly type taper drill according to claim 1 is characterized in that: the helical angle of said fluted drill is 30 degree, and the helical angle of guide way is 0 degree.
3. a kind of assembly type taper drill according to claim 1 is characterized in that: the drift angle of said fluted drill is 140 degree.
4. a kind of assembly type taper drill according to claim 1 is characterized in that: the said groove cross section that reeded contiguous block is set is a U-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204832865U CN202336615U (en) | 2011-11-29 | 2011-11-29 | Assembled taper twist drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204832865U CN202336615U (en) | 2011-11-29 | 2011-11-29 | Assembled taper twist drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202336615U true CN202336615U (en) | 2012-07-18 |
Family
ID=46485320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204832865U Expired - Fee Related CN202336615U (en) | 2011-11-29 | 2011-11-29 | Assembled taper twist drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202336615U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107498095A (en) * | 2017-09-20 | 2017-12-22 | 江苏天工工具有限公司 | A kind of left-handed three swords milling is bored |
| CN107511512A (en) * | 2017-09-20 | 2017-12-26 | 江苏天工工具有限公司 | A kind of right rotation three-wing bit |
-
2011
- 2011-11-29 CN CN2011204832865U patent/CN202336615U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107498095A (en) * | 2017-09-20 | 2017-12-22 | 江苏天工工具有限公司 | A kind of left-handed three swords milling is bored |
| CN107511512A (en) * | 2017-09-20 | 2017-12-26 | 江苏天工工具有限公司 | A kind of right rotation three-wing bit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120718 Termination date: 20141129 |
|
| EXPY | Termination of patent right or utility model |