CN104190998A - Flat drill - Google Patents
Flat drill Download PDFInfo
- Publication number
- CN104190998A CN104190998A CN201410371120.2A CN201410371120A CN104190998A CN 104190998 A CN104190998 A CN 104190998A CN 201410371120 A CN201410371120 A CN 201410371120A CN 104190998 A CN104190998 A CN 104190998A
- Authority
- CN
- China
- Prior art keywords
- knife face
- drillstock
- hole
- flat blade
- chit drill
- 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.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/0002—Drills with connected cutting heads, e.g. with non-exchangeable cutting heads; Drills with a single insert extending across the rotational axis and having at least two radially extending cutting edges in the working position
- B23B51/0003—Drills with connected cutting heads, e.g. with non-exchangeable cutting heads; Drills with a single insert extending across the rotational axis and having at least two radially extending cutting edges in the working position with exchangeable heads or inserts
- B23B51/00035—Spade drills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/06—Drills with lubricating or cooling equipment
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Abstract
The invention relates to the technical field of machining, in particular to a flat drill which comprises a cutter body made of tungsten steel materials. The cutter body comprises a cylindrical drill stock and a flat blade connected with the drill stock, the flat blade comprises a left tool face and a right tool face, and the right tool face is wider than the left tool face; a chamfer is arranged at the joint of the left tool face and the right tool face, a tool nose is arranged at one end of the right tool face, a cambered chip groove is formed between the drill stock and the flat blade, cutting edges are arranged on the edge of the left tool face and the edge of the right tool face respectively, and the cutting edges are respectively provided with a diamond coating. Accordingly, the flat drill is high in machining efficiency and can achieve one-time forming.
Description
Technical field
The present invention relates to Machining Technology field, relate in particular to chit drill.
Background technology
Along with the development of mechanical field, shoulder hole is also more and more diversified; Between upper and lower two holes of processing, during with the shoulder hole of chamfering, need repeatedly tool changing; Increase like this procedure, increased process time; This class part in enormous quantities is added to man-hour, waste time and energy; Especially when processing brass class part, cutter is sticky copper easily, causes machining accuracy not high.
Summary of the invention
The object of this invention is to provide a kind of raising working (machining) efficiency, can one-time formed chit drill.
Technical scheme of the present invention is as follows:
Chit drill, comprises the cutter hub that wolfram steel material is made; Described cutter hub comprises cylindrical drillstock, and the flat blade being connected with drillstock; Described flat blade comprises left knife face and right knife face, and the width of right knife face is greater than the width of left knife face; The junction of described left knife face and right knife face is equipped with chamfering; Described right knife face end is provided with point of a knife; Between described drillstock and flat blade, be provided with cambered surface chip area; Described left knife face Yu You knife face edge is equipped with cutting edge, on described cutting edge, is equipped with diamond coatings
Described point of a knife wedge angle is 120 °.Point of a knife wedge angle is larger, can improve point of a knife intensity, is conducive to the larger workpiece of hardness to carry out milling.
The wide 0.27mm of described left knife face chisel edge back taper, after its chisel edge, cone angle is 45 °.When boring, left knife face chisel edge is stressed larger, for when holing, increases the intensity of chisel edge, avoids the turned and tipping of chisel edge; Back taper is set on chisel edge, increases intensity and the rigidity of chisel edge.
The wide 0.3mm of described right knife face chisel edge back taper, after its chisel edge, cone angle is 45 °.When boring, right knife face chisel edge is stressed larger, for when holing, increases the intensity of chisel edge, avoids the turned and tipping of chisel edge; Back taper is set on chisel edge, increases intensity and the rigidity of chisel edge.
Described left knife face external diameter is 5.13mm, the long 10mm of described left blade; Described right knife face external diameter is 8.04mm, and described point of a knife to the length of chip area is 26mm.Due to left and right blade diameter and length less, thereby while guarantee boring less hole, can one-shot forming, avoid repeating processing.
Described drillstock external diameter is 6mm.Because left and right blade diameter is less, guaranteed the attractive in appearance and rigidity of cutter integral body.
Described drillstock end is provided with cooling fluid inlet hole, and described cooling fluid inlet hole one end is stretched out drillstock end and is in communication with the outside, and the other end is positioned at drillstock; On the outer surface of revolution of described drillstock, be evenly equipped with the first through hole of some connection cooling fluid inlet holes; Described drillstock is provided with guider; Described guider comprises left outside screw thread and the right outside screw thread being arranged on the outer surface of revolution of drillstock; On described left outside screw thread, right outside screw thread, be all arranged with the nut adaptive with it; Between described two nuts, be provided with supporting disk, in described supporting disk, be provided with second through hole corresponding with the first lead to the hole site; In described the second through hole, all socket joint has " Off " shape pipe; Described " Off " shape pipe one end is stretched out the second through hole and is connected with the first through hole whorl, and the spout of the other end is towards flat blade direction.Cooling in flat blade process of realization; Can improve the cooling effect of cooling fluid to flat blade.
The invention has the beneficial effects as follows: chit drill of the present invention, adopt the cutter hub of wolfram steel, and wolfram steel has that hardness is high, wear-resisting, intensity and better, heat-resisting, the corrosion resistant performance of toughness, has improved intensity and the hardness of chit drill; Junction at left knife face and right knife face arranges chamfering, while guaranteeing in milling inside the shoulder hole with chamfering, can one-shot forming, and avoid repeating processing, improve working (machining) efficiency; The application adopts flat blade, the chip removal while being conducive to cut, and be provided with cambered surface chip area between drillstock and flat blade, when milling, cambered surface chip area has good guide effect, and metal fillings is discharged along the cambered surface of chip area; Further on cutting edge, be equipped with diamond coatings, make chit drill not easy to wear on the one hand, can effectively avoid on the other hand chit drill to glue copper.
Accompanying drawing explanation
By the detailed description below in conjunction with accompanying drawing, the present invention is aforesaid will be become apparent with other object, feature and advantage.
Wherein: Fig. 1 is structural representation of the present invention;
Fig. 2 is A-A cutaway view of the present invention;
Fig. 3 is B-B cutaway view of the present invention;
Fig. 4 is I of the present invention portion side schematic view;
Fig. 5 is guider structural representation of the present invention;
Fig. 6 is the left outside screw thread of the present invention and right outside screw thread schematic diagram;
In accompanying drawing, 1 is drillstock, and 2 is left blade, and 3 is right blade, and 4 is chamfering, 5 is point of a knife, and 6 is cambered surface chip area, and 7 is cooling fluid inlet hole, and 8 is the first through hole, and 9 is left-hand thread, 10 is right-hand thread, and 11 is " Off " shape pipe, and 12 is nut, and 13 is supporting disk, and 14 is the second through hole.
The specific embodiment
Embodiment 1
It is shown in Figure 1,
Chit drill, comprises the cutter hub that wolfram steel material is made; Described cutter hub comprises cylindrical drillstock 1, and the flat blade being connected with drillstock, has improved on the one hand intensity and the hardness of chit drill, is conducive on the other hand add the chip removal in man-hour; Described flat blade comprises left knife face 2 and right knife face 3, and the width of right knife face is greater than the width of left knife face; The junction of described left knife face and right knife face is equipped with chamfering 4, while guaranteeing in milling inside the shoulder hole with chamfering, can one-shot forming, and avoid repeating processing, improve working (machining) efficiency; Described right knife face end is provided with point of a knife 5; Between described drillstock and flat blade, be provided with cambered surface chip area 6, when milling, cambered surface chip area has good guide effect, and metal fillings is discharged along the cambered surface of chip area; Described left knife face Yu You knife face edge is equipped with cutting edge, on described cutting edge, is equipped with diamond coatings, makes chit drill not easy to wear on the one hand, can effectively avoid on the other hand chit drill to glue copper.
Embodiment 2
On the basis of previous embodiment, in order to improve point of a knife intensity, described point of a knife wedge angle a1 is 120 °.Because point of a knife wedge angle is larger, make point of a knife intensity larger, be conducive to the larger workpiece of hardness to carry out milling.
Embodiment 3
On the basis of embodiment 1, in order to increase the intensity of left knife face chisel edge, the wide L1 of described left knife face chisel edge back taper is 0.27mm, and after its chisel edge, cone angle a2 is 45 °.When boring, left knife face chisel edge is stressed larger, in order to increase the intensity of chisel edge, avoids the turned and tipping of chisel edge; Back taper is set on chisel edge, increases intensity and the rigidity of chisel edge.
Embodiment 4
On the basis of embodiment 1, in order to increase the intensity of right knife face chisel edge, the wide L2 of described right knife face chisel edge back taper is 0.3mm, and after its chisel edge, cone angle a3 is 45 °.When boring, right knife face chisel edge is stressed larger, for when holing, increases the intensity of chisel edge, avoids the turned and tipping of chisel edge; Back taper is set on chisel edge, increases intensity and the rigidity of chisel edge.
Embodiment 5
On the basis of embodiment 1, for fear of repeating tool changing, described left knife face outer diameter D 1 is 5.13mm, and the long L3 of described left blade is 10mm; Described right knife face outer diameter D 2 is 8.04mm, and described point of a knife to the length L 4 of chip area is 26mm.Due to left and right blade diameter and length less, thereby while guarantee boring less hole, can one-shot forming, avoid repetition tool changing.
Embodiment 6
On the basis of embodiment 1, in order to guarantee the overall appearance of chit drill, described drillstock outer diameter D 3 is 6mm.Because left and right blade diameter is less, adopt less drillstock external diameter, can be good at guaranteeing the attractive in appearance and rigidity of cutter integral body.
Embodiment 7
On the basis of embodiment 1, in order to increase chit drill at the cooling effect that adds flat blade in man-hour, described drillstock end is provided with cooling fluid inlet hole 7, and described cooling fluid inlet hole one end is stretched out drillstock end and is in communication with the outside, and the other end is positioned at drillstock; On the outer surface of revolution of described drillstock, be evenly equipped with the first through hole 8 of some connection cooling fluid inlet holes; Described drillstock is provided with guider; Described guider comprises left outside screw thread 9 and the right outside screw thread 10 being arranged on the outer surface of revolution of drillstock; On described left outside screw thread, right outside screw thread, be all arranged with the nut adaptive with it 12; Between described two nuts, be provided with supporting disk 13, in described supporting disk, be provided with second through hole 14 corresponding with the first lead to the hole site; In described the second through hole, all socket joint has " Off " shape pipe 11; Described " Off " shape pipe one end is stretched out the second through hole and is connected with the first through hole whorl, and the spout of the other end is towards flat blade direction.Due to the restriction of flat cutting edge shape, in flat blade, cooling fluid inlet hole can not be set, the heat producing in process cannot effectively be got rid of; And utilize guider that the cooling fluid by flowing in cooling fluid inlet hole is sprayed to flat blade, cooling in flat blade process of realization, improve cooling fluid to the cooling effect of flat blade (it should be noted that the spout of " Off " shape pipe other end is in flat blade direction, the direction that also needs to aim at flat blade).
The present invention is not limited to described embodiment, and those skilled in the art, not departing from spirit of the present invention openly in scope, still can do some corrections or change, therefore the scope that the scope of the present invention limits with claims is as the criterion.
Claims (7)
1. chit drill, is characterized in that, comprises the cutter hub that wolfram steel material is made; Described cutter hub comprises cylindrical drillstock, and the flat blade being connected with drillstock; Described flat blade comprises left knife face and right knife face, and the width of right knife face is greater than the width of left knife face; The junction of described left knife face and right knife face is equipped with chamfering; Described right knife face end is provided with point of a knife; Between described drillstock and flat blade, be provided with cambered surface chip area; Described left knife face Yu You knife face edge is equipped with cutting edge, on described cutting edge, is equipped with diamond coatings.
2. chit drill according to claim 1, is characterized in that, described point of a knife wedge angle is 120 °.
3. chit drill according to claim 1, is characterized in that, the wide 0.27mm of described left knife face chisel edge back taper, and its chisel edge cone angle is 45 °.
4. chit drill according to claim 1, is characterized in that, the wide 0.3mm of described right knife face chisel edge back taper, and its chisel edge cone angle is 45 °.
5. chit drill according to claim 1, is characterized in that, described left knife face external diameter is 5.13mm, the long 10mm of described left blade; Described right knife face external diameter is 8.04mm, and described point of a knife to the length of chip area is 26mm.
6. chit drill according to claim 1, is characterized in that, described drillstock external diameter is 6mm.
7. chit drill according to claim 1, is characterized in that, described drillstock end is provided with cooling fluid inlet hole, and described cooling fluid inlet hole one end is stretched out drillstock end and is in communication with the outside, and the other end is positioned at drillstock; On the outer surface of revolution of described drillstock, be evenly equipped with the first through hole of some connection cooling fluid inlet holes; Described drillstock is provided with guider; Described guider comprises left outside screw thread and the right outside screw thread being arranged on the outer surface of revolution of drillstock; On described left outside screw thread, right outside screw thread, be all arranged with the nut adaptive with it; Between described two nuts, be provided with supporting disk, in described supporting disk, be provided with second through hole corresponding with the first lead to the hole site; In described the second through hole, all socket joint has " Off " shape pipe; Described " Off " shape pipe one end is stretched out the second through hole and is connected with the first through hole whorl, and the spout of the other end is towards flat blade direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410371120.2A CN104190998B (en) | 2014-07-30 | 2014-07-30 | Chit drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410371120.2A CN104190998B (en) | 2014-07-30 | 2014-07-30 | Chit drill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104190998A true CN104190998A (en) | 2014-12-10 |
| CN104190998B CN104190998B (en) | 2017-06-06 |
Family
ID=52076445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410371120.2A Active CN104190998B (en) | 2014-07-30 | 2014-07-30 | Chit drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104190998B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106216727A (en) * | 2016-07-29 | 2016-12-14 | 中国航空工业集团公司西安飞行自动控制研究所 | A kind of multi-stage stairs throttle orifice method for turning |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201572977U (en) * | 2009-11-23 | 2010-09-08 | 杭州雄飞冷精锻技术有限公司 | Plane screwer |
| CN202114308U (en) * | 2011-06-21 | 2012-01-18 | 无锡雨田精密工具有限公司 | Flat tungsten steel drill |
| CN102837035A (en) * | 2011-06-21 | 2012-12-26 | 无锡雨田精密工具有限公司 | Step forming flat drill |
| CN102837040A (en) * | 2011-06-24 | 2012-12-26 | 无锡雨田精密工具有限公司 | Molded flat drill |
| CN103658768A (en) * | 2013-12-17 | 2014-03-26 | 无锡雨田精密工具有限公司 | Forming flat drill |
| CN103722223A (en) * | 2013-11-26 | 2014-04-16 | 李仕清 | Drill chuck with cooling device |
| CN103817374A (en) * | 2014-02-26 | 2014-05-28 | 大连理工大学 | Cutter for perforating resin-base carbon fiber composite |
| CN103878416A (en) * | 2012-12-19 | 2014-06-25 | 浙江汉纳机械科技有限公司 | Cooling device for tool handle |
| CN204094198U (en) * | 2014-07-30 | 2015-01-14 | 常州创伟工具制造有限公司 | Chit drill |
-
2014
- 2014-07-30 CN CN201410371120.2A patent/CN104190998B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201572977U (en) * | 2009-11-23 | 2010-09-08 | 杭州雄飞冷精锻技术有限公司 | Plane screwer |
| CN202114308U (en) * | 2011-06-21 | 2012-01-18 | 无锡雨田精密工具有限公司 | Flat tungsten steel drill |
| CN102837035A (en) * | 2011-06-21 | 2012-12-26 | 无锡雨田精密工具有限公司 | Step forming flat drill |
| CN102837040A (en) * | 2011-06-24 | 2012-12-26 | 无锡雨田精密工具有限公司 | Molded flat drill |
| CN103878416A (en) * | 2012-12-19 | 2014-06-25 | 浙江汉纳机械科技有限公司 | Cooling device for tool handle |
| CN103722223A (en) * | 2013-11-26 | 2014-04-16 | 李仕清 | Drill chuck with cooling device |
| CN103658768A (en) * | 2013-12-17 | 2014-03-26 | 无锡雨田精密工具有限公司 | Forming flat drill |
| CN103817374A (en) * | 2014-02-26 | 2014-05-28 | 大连理工大学 | Cutter for perforating resin-base carbon fiber composite |
| CN204094198U (en) * | 2014-07-30 | 2015-01-14 | 常州创伟工具制造有限公司 | Chit drill |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106216727A (en) * | 2016-07-29 | 2016-12-14 | 中国航空工业集团公司西安飞行自动控制研究所 | A kind of multi-stage stairs throttle orifice method for turning |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104190998B (en) | 2017-06-06 |
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