CN203804245U - Knife-row-type double-edged precision boring knife - Google Patents

Knife-row-type double-edged precision boring knife Download PDF

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Publication number
CN203804245U
CN203804245U CN201420171721.4U CN201420171721U CN203804245U CN 203804245 U CN203804245 U CN 203804245U CN 201420171721 U CN201420171721 U CN 201420171721U CN 203804245 U CN203804245 U CN 203804245U
Authority
CN
China
Prior art keywords
knife
knife bar
edged
double
row
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
CN201420171721.4U
Other languages
Chinese (zh)
Inventor
舒清华
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.)
Jiangxi Copper Corp
Jiangxi Copper Co Ltd
Original Assignee
Jiangxi Copper 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 Jiangxi Copper Co Ltd filed Critical Jiangxi Copper Co Ltd
Priority to CN201420171721.4U priority Critical patent/CN203804245U/en
Application granted granted Critical
Publication of CN203804245U publication Critical patent/CN203804245U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a knife-row-type double-edged precision boring knife. The adopted technical scheme includes that: the knife-row-type double-edged precision boring knife comprises a knife rod body, knife rod positioning blocks, a double-edged knife head and a screw; the four knife rod positioning blocks, arranged on the knife rod body by welding, are uniformly distributed along a peripheral direction of an external diameter of the knife rod body and have external diameters larger than bore diameter of the double-edged knife head for 0.02 to 0.04 mm and made by kentanium; the head portion at the right end of the knife rod body is provided with a radial square hole internally provided with the double-edged knife head and an axial threaded hole internally provided with the screw; and the double-edged knife head is axially fastened and positioned by the screw. The knife-row-type double-edged precision boring knife has following beneficial effects: a knife rod has high rigidity; chips are removed smoothly; and the knife-row-type double-edged precision boring knife is high in boring efficiency and precision and good in quality.

Description

A kind of blade row formula twolip precision boring cutting tool
Technical field
The utility model relates to a kind of blade row formula twolip precision boring cutting tool, belongs to machining tool technical field.
Background technology
Bore hole is one of common method in machine finishing, but the boring of deep hole is owing to being subject to the impact of boring cutter bar rigidity, its quality is often difficult for guaranteeing, if strengthen the rigidity of boring cutter bar by the method that increases boring cutter bar cross-sectional area, can affect because of the increase of boring cutter bar cross-sectional area the discharge of smear metal, if strengthen the rigidity of boring cutter bar by the method that shortens boring cutter bar length, the repeatedly boring of will turning around while processing slotted hole, so just cause the repeatedly change of positioning datum, not only crudy cannot guarantee, working (machining) efficiency is also very low.
Summary of the invention
The purpose of this utility model is just to provide a kind of blade row formula twolip precision boring cutting tool, for addressing the above problem.
The technical solution of the utility model is: a kind of blade row formula twolip precision boring cutting tool, comprise knife bar body, knife bar locating piece, double edge cutter and screw, on knife bar body, with welding manner, be provided with four knife bar locating pieces, described four knife bar locating pieces are evenly arranged along knife bar body diameter circumferencial direction, its external diameter is compared with large 0.02~0.04 ㎜ in double edge cutter institute's bore hole footpath, its material is carbide alloy, described knife bar body right-hand member head is provided with radially square hole and an axial thread hole, in the radially square hole of described knife bar body, be provided with double edge cutter, in the axial thread hole of described knife bar body, be provided with screw, described double edge cutter is by the fastening location of screw axial.
The beneficial effects of the utility model are: knife bar rigidity is large, and chip removal is smooth, and bore hole efficiency is high, and precision is high, and quality is good.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail, known with reference to accompanying drawing 1, a kind of blade row formula twolip precision boring cutting tool, comprise knife bar body 1, knife bar locating piece 3, double edge cutter 4 and screw 5, it is characterized in that: on knife bar body 1, with welding manner, be provided with four knife bar locating pieces 3, described four knife bar locating pieces 3 are evenly arranged along knife bar body 1 external diameter circumferencial direction, its external diameter is compared with large 0.02~0.04 ㎜ in 4 bore hole footpaths of double edge cutter, its material is carbide alloy, described knife bar body 1 right-hand member head is provided with radially square hole and an axial thread hole, in the radially square hole of described knife bar body 1, be provided with double edge cutter 4, in the axial thread hole of described knife bar body 1, be provided with screw 5, described double edge cutter 4 axially fastens location by screw 5.During the endoporus of boring workpiece 2, knife bar body 1 is clamped on boring machine knife rest, knife bar body 1 axle center aligns the boring spindle centre of gyration, start boring machine and carry out boring, double edge cutter 4 first boring enters, knife bar locating piece 3 supports endoporus immediately, play positioning action, because four knife bar locating piece 3 external diameters are greater than the tool bore footpath that double edge cutter 4 bores, in bore hole process, four knife bar locating pieces 3 had both played supporting and location effect, guaranteed the rigidity of knife bar body 1, play again scraping action simultaneously, improved the cylindricity in the hole of institute's boring, reduced roughness, thereby improved bore hole quality, simultaneously, because knife bar body 1 rigidity is large, can strengthen cutting data, thereby improved bore hole efficiency.

Claims (1)

1. a blade row formula twolip precision boring cutting tool, comprise knife bar body (1), knife bar locating piece (3), double edge cutter (4) and screw (5), it is characterized in that: knife bar body (1) is upper is provided with four knife bar locating pieces (3) with welding manner, described four knife bar locating pieces (3) are evenly arranged along knife bar body (1) external diameter circumferencial direction, its external diameter is compared with large 0.02~0.04 ㎜ in double edge cutter (4) institute's bore hole footpath, its material is carbide alloy, described knife bar body (1) right-hand member head is provided with radially square hole and an axial thread hole, in the radially square hole of described knife bar body (1), be provided with double edge cutter (4), in the axial thread hole of described knife bar body (1), be provided with screw (5), described double edge cutter (4) axially fastens location by screw (5).
CN201420171721.4U 2014-04-10 2014-04-10 Knife-row-type double-edged precision boring knife Expired - Fee Related CN203804245U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420171721.4U CN203804245U (en) 2014-04-10 2014-04-10 Knife-row-type double-edged precision boring knife

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420171721.4U CN203804245U (en) 2014-04-10 2014-04-10 Knife-row-type double-edged precision boring knife

Publications (1)

Publication Number Publication Date
CN203804245U true CN203804245U (en) 2014-09-03

Family

ID=51443056

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420171721.4U Expired - Fee Related CN203804245U (en) 2014-04-10 2014-04-10 Knife-row-type double-edged precision boring knife

Country Status (1)

Country Link
CN (1) CN203804245U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105642922A (en) * 2014-11-13 2016-06-08 首都航天机械公司 Deep hole boring tool

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105642922A (en) * 2014-11-13 2016-06-08 首都航天机械公司 Deep hole boring tool

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Legal Events

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

Granted publication date: 20140903

Termination date: 20190410

CF01 Termination of patent right due to non-payment of annual fee