CN202845865U - Step drill - Google Patents

Step drill Download PDF

Info

Publication number
CN202845865U
CN202845865U CN 201220488467 CN201220488467U CN202845865U CN 202845865 U CN202845865 U CN 202845865U CN 201220488467 CN201220488467 CN 201220488467 CN 201220488467 U CN201220488467 U CN 201220488467U CN 202845865 U CN202845865 U CN 202845865U
Authority
CN
China
Prior art keywords
drill
cutter
neck
handle
drill bit
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
Application number
CN 201220488467
Other languages
Chinese (zh)
Inventor
曹小龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HENGXIANG PUMP&TOOL MANUFACTURING Co Ltd
Original Assignee
HENGXIANG PUMP&TOOL MANUFACTURING Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HENGXIANG PUMP&TOOL MANUFACTURING Co Ltd filed Critical HENGXIANG PUMP&TOOL MANUFACTURING Co Ltd
Priority to CN 201220488467 priority Critical patent/CN202845865U/en
Application granted granted Critical
Publication of CN202845865U publication Critical patent/CN202845865U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model belongs to the field of cutting tools, in particular to a step drill. The step drill comprises a drill handle, a drill neck, and a drill pit, wherein two ends of the drill neck are respectively connected with the drill pit and the drill handle. The drill pit comprises a first drill tip and a second drill body, wherein an included angle of the first step drill tip is 118 degrees. The step drill has the advantages that two step drills are arranged on a step, step holes are processed integrally, efficiency is high, and cost is low.

Description

Step bores
Technical field
The utility model belongs to the cutting tool field, and specifically a kind of step bores.
Background technology
The structure of various cutters all is comprised of clamping part and working portion.Clamping part and the working portion of overall structure cutter all are made on the cutter hub; The working portion of inserted structure cutter (cutter tooth or blade) then is installed on the cutter hub.The clamping of cutter partly has with holes and band handle two classes.Rely on inner hole sleeve to be contained on the main shaft or axle of lathe with spot facing cutter, transmit torsional moment by axial bond or straight end-face key, such as cylindrical milling cutter, facing-type cutter etc.With the cutter of handle three kinds of rectangular shank, cylindrical handle and circular cone handles are arranged usually.Lathe tool, planing tool etc. are generally rectangular shank; The circular cone handle leans on the tapering bearing axial pushing force, and by the frictional force transmitting torque; Cylindrical handle generally is applicable to the cutters such as less fluted drill, slotting cutter, and the frictional force that produces when clamping during cutting is transmitted torsional moment.Much make with low-alloy steel with the shank of the cutter of handle, working portion then forms two parts butt welding with high-speed steel.The working portion of cutter is exactly the part that produces and process smear metal, comprises blade, makes smear metal structure, chip removal or appearance disconnected broken or that wind up store up the space of smear metal, the structural elements such as passage of cutting fluid.The working portion of the cutter that has is exactly cutting tip, such as lathe tool, planing tool, boring cutter and milling cutter etc.; The working portion of the cutter that has then comprises cutting tip and calibrated section, such as drill bit, reamer, reamer, inner surface broaching tool and screw tap etc.The effect of cutting tip is to excise smear metal with blade, and the effect of calibrated section is finished surface and the guiding cutter that smoothing has been cut.
Summary of the invention
The purpose of this utility model provides the step brill that stepped hole is bored in a kind of one-shot forming.
The utility model provides following technical scheme:
Step bores, and it comprises drillstock, drill neck and drill bit, and the drill neck two ends connect respectively drill bit and drillstock, and described drill bit comprises the first rank apex point and second-order drill body, and the angle of the first rank apex point is 118 °.
Described second-order drill body is for being provided with the chamfer sword, and the angle of chamfer sword and level is 45 °.
The utility model has the advantages that step arranges second order and bores, the one processing step hole, efficient is high, and cost is low.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
As shown in Figure 1, step bores, and it comprises drillstock 1, drill neck 2 and drill bit 3, and drill neck 2 two ends connect respectively drill bit 3 and drillstock 1, and described drill bit 3 comprises the first rank apex point 3a and second-order drill body 3b, and the angle of the first rank apex point 3a is 118 °.
Described second-order drill body 3b is for being provided with the chamfer sword, and the angle of chamfer sword and level is 45 °.

Claims (2)

1. step bores, and it comprises drillstock, drill neck and drill bit, and the drill neck two ends connect respectively drill bit and drillstock, it is characterized in that: described drill bit comprises the first rank apex point and second-order drill body, and the angle of the first rank apex point is 118 °.
2. step according to claim 1 bores, and it is characterized in that: described second-order drill body is for being provided with the chamfer sword, and the angle of chamfer sword and level is 45 °.
CN 201220488467 2012-09-23 2012-09-23 Step drill Expired - Fee Related CN202845865U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220488467 CN202845865U (en) 2012-09-23 2012-09-23 Step drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220488467 CN202845865U (en) 2012-09-23 2012-09-23 Step drill

Publications (1)

Publication Number Publication Date
CN202845865U true CN202845865U (en) 2013-04-03

Family

ID=47977101

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220488467 Expired - Fee Related CN202845865U (en) 2012-09-23 2012-09-23 Step drill

Country Status (1)

Country Link
CN (1) CN202845865U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103737055A (en) * 2014-01-29 2014-04-23 广西玉柴机器股份有限公司 Combined drill for machining sand shooting hole
CN105772807A (en) * 2016-03-25 2016-07-20 哈尔滨飞机工业集团有限责任公司 Step hole machining combination cutter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103737055A (en) * 2014-01-29 2014-04-23 广西玉柴机器股份有限公司 Combined drill for machining sand shooting hole
CN105772807A (en) * 2016-03-25 2016-07-20 哈尔滨飞机工业集团有限责任公司 Step hole machining combination cutter

Similar Documents

Publication Publication Date Title
CN204639254U (en) A kind of carbide drill reaming and milling composite cutter
CN202845865U (en) Step drill
CN202845887U (en) Forming milling cutter
CN203401121U (en) Countersinking and reaming composite cutter for solid carbide drill
CN104827102A (en) Mechanically-clamped counterbore combined drill
CN203696061U (en) Combined drilling and countersinking tool
CN202845866U (en) Drill
CN206747670U (en) A kind of profile milling cutter
CN202845971U (en) Thread milling cutter
CN202845815U (en) Single-edged T-shaped cutter
CN202845825U (en) Cutter plate
CN202845813U (en) Double-edge straight-groove ball cutter
CN202845950U (en) Tungsten steel chamfering knife
CN202845814U (en) Tungsten steel molding knife
CN202845886U (en) Four-blade milling cutter
CN205289943U (en) Reamer with interior cold -working is used
CN202291442U (en) Rose reamer
CN204657571U (en) A kind of machine folder counterbore combination drill
CN202336615U (en) Assembled taper twist drill
CN201862838U (en) Extending milling head for machine tool
CN103357937B (en) There is the milling cutter of multiple milling unit
CN206913468U (en) A kind of engraved stone drill bit
CN205765161U (en) A kind of multi-functional cutter clamping equipment
CN204108411U (en) A kind of major diameter drill bit with chip dividing groove
CN209632512U (en) A kind of boring surface milling knife

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130403

Termination date: 20130923

C17 Cessation of patent right