CN107414216A

CN107414216A - Sectional tap

Info

Publication number: CN107414216A
Application number: CN201710672198.1A
Authority: CN
Inventors: 不公告发明人
Original assignee: Jingmen One Day Power Machinery Technology Co Ltd
Current assignee: Taizhou Zhongchi Zhigu Technology Co.,Ltd.
Priority date: 2017-08-08
Filing date: 2017-08-08
Publication date: 2017-12-01
Anticipated expiration: 2037-08-08
Also published as: CN107414216B

Abstract

Sectional tap, including：Tap holder handle, screw tap joint, screw tap joint dovetail groove, screw tap blade, screw tap chip area, screw tap chip area gear bits head, screw tap is divided into main part and knife edge part, main part and sub-wire taper shank handle and screw tap joint, tap holder is being integral with joint, screw tap joint radially has three to be uniformly distributed the dovetail groove axially moved towards, dovetail groove is plugged with screw tap blade, there is chip area between dovetail groove and dovetail groove, it is gear bits head on chip removal trough, chip removal slot tail and tap holder have overbank between.

Description

Sectional tap

Technical field

The invention belongs to mechanical field, particularly sectional tap.

Background technology

Traditional screw tap is typically all divided into nose cone and plug tap, and tapping nose cone, which is attacked, to be over, and screw tap is poured out from tapping hole, at this moment portion Tapping chip is divided to drop in tapping hole, tapping brings inconvenience again to plug tap, and screw tap is disconnected（Particulate metal material is firmly easy It is disconnected）Or it is unhappy with wearing long, be eliminated, screw tap material is all particulate metal material, price, so waste it is larger, Present patent screw tap is such as：Application number is a kind of CN201320710530.6 sectional tap：It screw tap be divided into connection body and Tapping body, this two parts are plugged in together by connecting body following hexagonal blind hole and the prism of tapping body top six, when attacking Silk body has broken or with unhappy long, and changing an individual tapping body can then use, and so as to reduce the waste of material for taps, but it is still Many deficiencies be present, such as：Tapping body is easily broken as traditional screw tap, must also be divided into nose cone and plug tap, tapping body is too big, is Further improvement screw tap, overcomes the shortcomings of existing screw tap, the invention provides a kind of not easily broken, nose cone and plug tap can integrally, The sectional tap that knife edge part is small, tapping chip voluntarily can be taken out of from tapping hole.

The content of the invention

Technical solution of the present invention：Screw tap is divided into main part and knife edge part, main part and sub-wire taper shank handle and silk Taper joint, for tap holder being integral with joint, screw tap joint radially has three to be uniformly distributed the dovetail groove axially moved towards, dovetail Groove is plugged with screw tap blade, there is chip area between dovetail groove and dovetail groove, is gear bits head, chip removal slot tail and silk on chip removal trough Taper shank has overbank between.Tap holder handle and joint can use common iron, and cost is low and not easily broken, damage, only small knife Blade portion special material, screw tap blade one are nose cone, and other end is plug tap, first with the screw tap that blade head is nose cone during tapping Attack one time, then screw tap is poured out from tapping hole, at this moment due to having gear bits head, metal caused by tapping on screw tap chip removal trough Bits can be brought out from tapping hole, and then three screw tap blades are released from respective dovetail groove, is end for end and plugs again just It is plug tap, then attacks again one time, complete tapping, also can use two screw taps certainly, be nose cone on a screw tap blade head, another It is plug tap on screw tap blade head, such screw tap blade does not just have to turn around, and screw tap knife edge part is replaceable.

Screw tap of the present invention is not easily broken, and nose cone, plug tap can be on a screw taps, and tapping metal fillings can the voluntarily band from tapping hole Out, tapping again is facilitated, improves tapping efficiency, screw tap knife edge part is small and replaceable, saves special metal material, section About cost.

Brief description of the drawings

Fig. 1 is screw tap composite entity stereogram of the present invention.

Fig. 2 is screw tap exploded perspective view of the present invention.

Embodiment

Sectional tap, including：1st, tap holder handle, 2, screw tap joint, 3, screw tap joint dovetail groove, 4, screw tap blade, 5, silk Bore chip area, 6, screw tap chip area gear bits head, screw tap is divided into main part and knife edge part, main part sub-wire taper shank handle again 1 and screw tap joint 2, tap holder be integral 1 and joint 2, the radial direction of screw tap joint 2 has three to be uniformly distributed the swallow axially moved towards Stern notch 3, dovetail groove 3 are plugged with screw tap blade 4, there is chip area 5 between dovetail groove 3 and dovetail groove 3, are gear bits on chip area 5 First 6, the afterbody of chip area 5 and tap holder are having overbank between 1.Tap holder is 1 and joint 2 common No. 45 steel, blade 4 Divide and use hard alloy：79HRC, screw tap blade 4 one are nose cone, and other end is plug tap, during tapping first with blade 4 be nose cone Screw tap is attacked one time, then screw tap is poured out from tapping hole, and at this moment due to there is gear bits first 6 on screw tap chip area 5, tapping produces Metal fillings can be brought out from tapping hole, then three screw tap blades 4 are released from respective dovetail groove 3, are end for end It is exactly plug tap to plug again, is then attacked again one time, completes tapping, and screw tap blade 4 has worn unhappy and just renewed blade 4.

Claims

1. sectional tap, including：Tap holder handle, screw tap joint, screw tap joint dovetail groove, screw tap blade, screw tap chip area, screw tap Chip area gear bits head, it is characterized in that：Screw tap is divided into main part and knife edge part, main part and sub-wire taper shank handle and screw tap Joint, for tap holder being integral with joint, screw tap joint radially has three to be uniformly distributed the dovetail groove axially moved towards, dovetail groove Screw tap blade is plugged with, there is chip area between dovetail groove and dovetail groove, is gear bits head, chip removal slot tail and screw tap on chip removal trough There is overbank between handle.

2. according to claim 1 sectional tap, it is characterized in that：Tap holder handle and joint can use common iron, and cost is low and is not easy Disconnected, damage, only small knife edge part special material, screw tap blade one are nose cone, and other end is plug tap, first use knife during tapping Sword head is attacked one time for the screw tap of nose cone, then screw tap is poured out from tapping hole, at this moment due to there is gear to consider to be worth doing on screw tap chip removal trough Head, metal fillings can be brought out from tapping hole caused by tapping, facilitate tapping again, then three screw tap blades from respective Dovetail groove in release, be end for end that to plug again be exactly plug tap, then attack again one time, complete tapping, it is also possible to two screw taps, one It is nose cone on individual screw tap blade head, is plug tap on another screw tap blade head, screw tap blade does not just have to turn around during such tapping, Screw tap knife edge part is replaceable.