CN104526022A - Twist drill - Google Patents
Twist drill Download PDFInfo
- Publication number
- CN104526022A CN104526022A CN201410607159.XA CN201410607159A CN104526022A CN 104526022 A CN104526022 A CN 104526022A CN 201410607159 A CN201410607159 A CN 201410607159A CN 104526022 A CN104526022 A CN 104526022A
- Authority
- CN
- China
- Prior art keywords
- handle
- cutter head
- knife
- cutter
- hexagonal
- 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
- B23B51/0081—Conical drills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/02—Twist 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/40—Flutes, i.e. chip conveying grooves
- B23B2251/408—Spiral grooves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Abstract
The invention relates to the technical field of tools, in particular to a twist drill. The twist drill comprises a cutter handle and a cutter head; and the cutter handle is arranged on the cutter head and is connected with the cutter head. The twist drill is characterized in that the bottom of the cutter head is in a circular conical shape, and an arc-shaped groove for containing removed chips is formed in the conical bottom; a plurality of spiral cutting blades are arranged on the cutter head, and a spiral chip removing groove matched with the spiral of the cutting blades is formed between two cutting blades; the cutting blades, the spiral chip removing groove and the arc-shaped groove are connected; heat dissipating channels are formed in the cutter handle and the cutter head; one end of each channel is arranged on the circular conical side face, and the other end of each channel is arranged on the cutter handle; the upper end of the cutter handle is sleeved with a hexagonal handle, and the upper end of the cutter handle is connected with the hexagonal handle through threads; a circular-arc groove is formed in the middle of the hexagonal handle; and the radius of the section contour line of the circular-arc groove is an inferior arc ranging from 2.28 to 2.88. The twist drill is good in machining efficiency, good in chip removal effect and low in cost and facilitates clamping.
Description
Technical field
The present invention relates to a kind of cutting-tool engineering field, particularly relate to a kind of fluted drill.
Background technology
The general cutter head of present drill bit and handle of a knife are all one, and general drill bit is all high-speed steel, production cost is higher, be unfavorable for reducing production cost, fluted drill chip removal ability embodies the quality of the hole surface of fluted drill, if the fluted drill that chip removal effect is bad, and the surface of meeting scratch machining hole, affect the processing effect of fluted drill, be unfavorable for producing.
Summary of the invention
The present invention is in order to overcome the deficiency of above-mentioned technical problem, and provide a kind of working (machining) efficiency good, chip removal is effective, is beneficial to clamping and the low fluted drill of cost.
The technical scheme solved the problems of the technologies described above is as follows:
Fluted drill, comprise handle of a knife and cutter head, handle of a knife is arranged on above cutter head, be connected with cutter head, be conical bottom described cutter head, conical lower portion is provided with the arc groove holding chip removal, described cutter head is provided with some spiral cutting swords, the helical flute matched with cutting edge spiral is provided with between every two cutting edges, cutting edge, helical flute is connected with arc groove, described handle of a knife and cutter head are provided with heat dissipation channel, one end of passage is arranged on conical side, the other end is arranged on handle of a knife, described handle of a knife upper end is set with hexagonal handle, handle of a knife upper end and hexagonal handle are threaded connection, arc groove is provided with in the middle of described hexagonal handle, the cross section contour radius of arc groove is the minor arc of 2.28-2.88.
Horizontal cutting edge is provided with in described chip area.
Rubber sleeve is set with outside described hexagonal handle.
The angle on both sides, described conical cross section is 129 °-141 °.
Adopt such scheme, owing to bottom cutter head being taper shape, conical lower portion is provided with the arc groove holding chip removal, arc groove, the tiny chip removal in chip removal can be held, prevent tiny chip removal from not discharging, and affect the quality of finished surface, helical flute can increase the chip removal ability of cutter, described handle of a knife and cutter head are provided with heat dissipation channel, the amount of heat produced during processing work can be shed by heat dissipation channel, prevent cutter overheated, reduce the wearing and tearing adding tool setting in man-hour tool, improve cutting-tool's used life, handle of a knife is set with hexagonal handle, handle of a knife and hexagonal handle are threaded, be convenient to the repeatedly use of hexagonal handle, save cost, arc groove is provided with in the middle of hexagonal handle, the cross section contour radius of arc groove is the minor arc of 2.28-2.88, be convenient to the clamping of cutter.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
As shown in the figure, fluted drill, comprise handle of a knife 1 and cutter head 2, handle of a knife 1 is arranged on above cutter head 2, be connected with cutter head 2, be conical bottom cutter head 2, the angle on both sides, conical cross section is 135 °, conical lower portion is provided with the arc groove 3 holding chip removal, arc groove 3 can hold the tiny chip removal in chip removal, prevent tiny chip removal from not discharging, and affect the quality of finished surface, cutter head is provided with some spiral cutting swords 4, the helical flute 5 matched with cutting edge 4 is provided with between every two cutting edges 4, be conducive to chip removal, horizontal cutting edge 9 is provided with in chip area, the chip of spiral can be cut off by cutting edge 9, prevent chip around on workpiece, cutting edge, helical flute 5 is connected with arc groove 3, handle of a knife 1 and cutter head 2 are provided with heat dissipation channel 6, one end of passage is arranged on conical side, the other end is arranged on handle of a knife 1, the amount of heat produced during processing work can be shed by heat dissipation channel, prevent cutter overheated, reduce the wearing and tearing adding tool setting in man-hour tool, improve cutting-tool's used life, handle of a knife 1 upper end is set with hexagonal handle 7, handle of a knife 1 upper end and hexagonal handle 7 are threaded connection, be threaded and be convenient to change the handle of a knife be connected with hexagonal handle, a hexagonal handle 7 is connected from the handle of a knife of different fluted drills, realize more than 7 practicality of a hexagonal handle, reduce production cost, arc groove 8 is provided with in the middle of hexagonal handle 7, the cross section contour radius of arc groove 8 is the minor arc of 2.38, minor arc can improve the clamping fastness of hexagonal handle 7 and clamping device, make hexagonal handle 7 and Workpiece clamping, rubber sleeve is set with outside hexagonal handle 7, when tool sharpening, rubber sleeve can reduce cutter and add the vibrations produced man-hour, improve machining accuracy.
The above is only preferred embodiment of the present invention, not does any pro forma restriction to the present invention, every according in technical spirit of the present invention to any simple modification, equivalent variations that above embodiment is done, all fall within protection scope of the present invention.
Claims (4)
1. fluted drill, comprise handle of a knife and cutter head, handle of a knife is arranged on above cutter head, be connected with cutter head, it is characterized in that, be conical bottom described cutter head, conical lower portion is provided with the arc groove holding chip removal, described cutter head is provided with some spiral cutting swords, the helical flute matched with cutting edge spiral is provided with between every two cutting edges, cutting edge, helical flute is connected with arc groove, described handle of a knife and cutter head are provided with heat dissipation channel, one end of passage is arranged on conical side, the other end is arranged on handle of a knife, described handle of a knife upper end is set with hexagonal handle, handle of a knife upper end and hexagonal handle are threaded connection, arc groove is provided with in the middle of described hexagonal handle, the cross section contour radius of arc groove is the minor arc of 2.28-2.88.
2. fluted drill according to claim 1, is characterized in that, is provided with horizontal cutting edge in described chip area.
3. fluted drill according to claim 1, its feature with, be set with rubber sleeve outside described hexagonal handle.
4. fluted drill according to claim 1, is characterized in that, the angle on both sides, described conical cross section is 129 °-141 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410607159.XA CN104526022A (en) | 2014-10-31 | 2014-10-31 | Twist drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410607159.XA CN104526022A (en) | 2014-10-31 | 2014-10-31 | Twist drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104526022A true CN104526022A (en) | 2015-04-22 |
Family
ID=52841753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410607159.XA Pending CN104526022A (en) | 2014-10-31 | 2014-10-31 | Twist drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104526022A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107433352A (en) * | 2016-05-29 | 2017-12-05 | 佳木斯骥驰拖拉机制造有限公司 | Lengthen row in twolip and cut depth drill |
| CN109434372A (en) * | 2018-12-18 | 2019-03-08 | 珠海杭宇电子有限公司 | A kind of novel rolling cut flower machining tool and processing method |
| CN110899799A (en) * | 2019-12-10 | 2020-03-24 | 福建中成新材料科技有限公司 | Tungsten steel milling cutter for horizontal machining center and preparation method thereof |
| CN112705764A (en) * | 2020-12-23 | 2021-04-27 | 黄开建 | Drilling reamer tool with staggered blades for hole machining of composite material |
| CN114192846A (en) * | 2021-12-27 | 2022-03-18 | 南京超锋制刀有限公司 | Inlaid steel spiral cutter with good wear resistance |
-
2014
- 2014-10-31 CN CN201410607159.XA patent/CN104526022A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107433352A (en) * | 2016-05-29 | 2017-12-05 | 佳木斯骥驰拖拉机制造有限公司 | Lengthen row in twolip and cut depth drill |
| CN109434372A (en) * | 2018-12-18 | 2019-03-08 | 珠海杭宇电子有限公司 | A kind of novel rolling cut flower machining tool and processing method |
| CN109434372B (en) * | 2018-12-18 | 2024-07-12 | 珠海杭宇电子有限公司 | Novel rolling cutting flower processing machine tool and processing method |
| CN110899799A (en) * | 2019-12-10 | 2020-03-24 | 福建中成新材料科技有限公司 | Tungsten steel milling cutter for horizontal machining center and preparation method thereof |
| CN112705764A (en) * | 2020-12-23 | 2021-04-27 | 黄开建 | Drilling reamer tool with staggered blades for hole machining of composite material |
| CN114192846A (en) * | 2021-12-27 | 2022-03-18 | 南京超锋制刀有限公司 | Inlaid steel spiral cutter with good wear resistance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150422 |
|
| WD01 | Invention patent application deemed withdrawn after publication |