CN207414440U - A kind of hard alloy drills and reams integrated knife - Google Patents

A kind of hard alloy drills and reams integrated knife Download PDF

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Publication number
CN207414440U
CN207414440U CN201721485819.7U CN201721485819U CN207414440U CN 207414440 U CN207414440 U CN 207414440U CN 201721485819 U CN201721485819 U CN 201721485819U CN 207414440 U CN207414440 U CN 207414440U
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China
Prior art keywords
reamer
reams
hard alloy
drill bit
drills
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Active
Application number
CN201721485819.7U
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Chinese (zh)
Inventor
陆旭锋
蒋道顺
余金川
李明祥
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Guizhou Southwest Tool Group Co Ltd
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Guizhou Southwest Tool Group Co Ltd
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Priority to CN201721485819.7U priority Critical patent/CN207414440U/en
Application granted granted Critical
Publication of CN207414440U publication Critical patent/CN207414440U/en
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Abstract

It drills and reams integrated knife the utility model discloses a kind of hard alloy, including cutting tip and shank portion, the cutting tip front end is drill bit, rear end is reamer, the diameter of its drill bit is less than the diameter of reamer, it is connected between the two with arc surface transition, and two chip spaces is symmetrically provided on cutting tip.Together with drill bit is effectively combined by the utility model with reamer, it can once complete to bore, cut with scissors two processes, reduce number of changing knife, avoid the position error that tool changing is brought, ensure that machining accuracy, improve production efficiency, there is significant economic benefit.

Description

A kind of hard alloy drills and reams integrated knife
Technical field
It drills and reams integrated knife the utility model is related to a kind of hard alloy, belongs to metal cutting tool technical field.
Background technology
In machine-building, bit bore is usually first used in the processing in hole, but the usual burr of bit bore is more, surface Roughness is big, belongs to roughing, reams so also needing to replace reamer, hole is made to reach high precision and low roughness.This A hole has been processed since sample must need two processes, and a big chunk time can be spent by replacing cutter therebetween, and is also easy to There is position error, make machining accuracy that can not ensure, reduce processing efficiency, add the manufacture cost of product.
Utility model content
The purpose of this utility model is for problem present in existing hole machined, provides a kind of hard alloy and drills and reams one Knife, this drill and ream integrated knife during hole machined can complete fulfillment bore, hinge two procedures, save tool change time, improve hole add Work precision.
The technical solution of the utility model:A kind of hard alloy drills and reams integrated knife, including cutting tip and shank portion, institute Cutting tip front end is stated as drill bit, rear end is reamer, and the diameter of drill bit is less than the diameter of reamer, between the two with arc surface mistake Connection is crossed, and two chip spaces are symmetrically provided on cutting tip.
The apex point apex angle ss of the drill bit is 100 °~140 °.
The chamfering of the reamer front end is 45 °, and chamfering width is 0.5~1mm.
The chip space is helicla flute, and spiral angle is between 0~10 °.
Due to the adoption of the above technical scheme, the utility model has the advantage of:The utility model is effective with reamer by drill bit Be combined together, can once complete to bore, cut with scissors two processes, reduce number of changing knife, avoid that tool changing brings determines Position error, ensure that machining accuracy, improves production efficiency, there is significant economic benefit.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
Reference sign:1- cutting tips, 2- shank portions, 3- drill bits, 4- reamers, 5- arc surfaces, 6- chip spaces.
Specific embodiment
In order to make the utility model aim, technical solution and advantage clearer, below in conjunction with the accompanying drawings and embodiment pair The utility model is described in further detail.
The embodiment of the utility model:Hard alloy drill and ream integrated knife structure diagram as shown in Fig. 1, including cutting Part 1 and shank portion 2,1 front end of cutting tip are drill bit 3, and rear end is reamer 4, and the diameter of drill bit 3 is less than reamer 4 Diameter, connected between the two with 5 transition of arc surface, and two chip spaces 6 be symmetrically provided on cutting tip 1.The brill First 3 apex point apex angle ss is 130 °.In order to which reamer 4 is made to be easily accessible in hole, and 4 cutting edge of reamer is protected not to be damaged, this reality With new 45 ° of the Leading end chamfer in reamer 4, width 0.5mm.Two chip spaces 6 are set on cutter hub, helical angle is 0 °, So chip is discharged from chip space 6 in process, settles drilling and reaming at one go, improves production efficiency.

Claims (4)

  1. The integrated knife 1. a kind of hard alloy drills and reams, including cutting tip (1) and shank portion (2), it is characterised in that:The cutting Partly (1) front end is drill bit (3), and rear end is reamer (4), and the diameter of drill bit (3) is less than the diameter of reamer (4), between the two It is connected with arc surface (5) transition, and two chip spaces (6) is symmetrically provided on cutting tip (1).
  2. The integrated knife 2. hard alloy according to claim 1 drills and reams, it is characterised in that:The apex point apex angle ss of the drill bit (3) For 100 °~140 °.
  3. The integrated knife 3. hard alloy according to claim 1 drills and reams, it is characterised in that:The chamfering of reamer (4) front end For 45 °, chamfering width (b) is 0.5~1mm.
  4. The integrated knife 4. hard alloy according to claim 1 drills and reams, it is characterised in that:The chip space (6) is helicla flute, Its spiral angle is between 0~10 °.
CN201721485819.7U 2017-11-09 2017-11-09 A kind of hard alloy drills and reams integrated knife Active CN207414440U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721485819.7U CN207414440U (en) 2017-11-09 2017-11-09 A kind of hard alloy drills and reams integrated knife

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721485819.7U CN207414440U (en) 2017-11-09 2017-11-09 A kind of hard alloy drills and reams integrated knife

Publications (1)

Publication Number Publication Date
CN207414440U true CN207414440U (en) 2018-05-29

Family

ID=62308477

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721485819.7U Active CN207414440U (en) 2017-11-09 2017-11-09 A kind of hard alloy drills and reams integrated knife

Country Status (1)

Country Link
CN (1) CN207414440U (en)

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