CN105689743A - Telescopic boring rod - Google Patents
Telescopic boring rod Download PDFInfo
- Publication number
- CN105689743A CN105689743A CN201410703334.5A CN201410703334A CN105689743A CN 105689743 A CN105689743 A CN 105689743A CN 201410703334 A CN201410703334 A CN 201410703334A CN 105689743 A CN105689743 A CN 105689743A
- Authority
- CN
- China
- Prior art keywords
- boring bar
- boring
- boring rod
- cutting tool
- bar body
- 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
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- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
The invention discloses a telescopic boring rod which comprises a boring rod body, wherein a cutting tool groove and a cutting tool positioning hole which communicates with and is perpendicular to the cutting tool groove are formed in the front end part of the boring rod body; a toolholder connecting seat is arranged at the back end of the boring rod body; a threaded hole is formed in the back end of the boring rod body along the axis; a screw rod is matched in the threaded hole; a motor is arranged in the toolholder connecting seat; an output shaft of the motor is connected with the screw rod; and an included angle which is the same as a rake angle of a cutting tool is formed between the center line of the cutting tool groove and the axis of the boring rod body. According to the telescopic boring rod, the boring rod body can stretch, so that the purpose that only one boring cutter is needed when holes in different depths are processed is realized, and the processing cost is lowered; the included angle which is the same as the rake angle of the cutting tool is formed between the center line of the cutting tool groove and the axis of the boring rod body, and the rake angle of the cutting tool can be increased, so that in the cutting and processing processes of the cutting tool and the boring rod, the bearing capacity of the boring rod and the stability of the processing size are improved.
Description
Technical field
The invention belongs to metal cutting process technical field, particularly relate to a kind of boring bar。
Background technology
In machining, it is common to use boring cutter carries out hole machined。General boring cutter is made up of handle of a knife, boring bar and cutter。Nowadays the boring bar on market is non-telescoping, the degree of depth and radius according to hole select the boring cutter of which kind of specification to be processed, the boring bar of the boring cutter on market of today is non-telescoping, thus causing in the hole of processing same radius because the degree of depth needs to be ready to the boring cutter of several different size, such break-in adds the cost of production。
Carrying out in Boring process with hole boring cutter, after the counteracting force of boring cutter is transferred to boring cutter bar by surface of the work, boring cutter bar can made to produce vibration radially。When particularly carrying out deep hole machining, owing to cutting vibration is big, both affected the crudy of workpiece hole, affected again cutting-tool's used life。
It addition, for the rigidity improving boring bar, it is generally required to arrange copper sheathing in boring bar intermediate support position, but owing to copper sheathing and boring bar frequently rotate, it is easy to abrasion, cause boring bar too short for service life。
Therefore, how to solve above-mentioned technical problem and become the direction that these those skilled in the art make great efforts。
Summary of the invention
It is an object of the invention to provide a kind of telescopic boring bar, above-mentioned the deficiencies in the prior art part can be fully solved。
The purpose of the present invention is realized by following technical proposals:
A kind of telescopic boring bar, including boring bar body, it is provided with cutter groove in boring bar body leading section, and communicate and the cutter positioning hole vertical with cutter groove with cutter groove, boring bar body rear end is provided with handle of a knife and connects seat, it is characterised in that: screwed hole is offered along axis in described boring bar body rear end, screw rod is coordinated in screwed hole, connecting in seat at handle of a knife and arrange motor, motor output shaft is connected with screw rod, and described cutter groove center line forms an angle identical with tool orthogonal rake with boring bar body axis。
As preferably, described boring bar body surface is inlaid with hard alloy bar。
As preferably, described hard alloy bar is embedded in boring bar body intermediate support position。
As preferably, described hard alloy bar is evenly arranged along boring bar body outer surface circumference。
Compared with prior art, the beneficial effects of the present invention is:
1. boring bar body is scalable, according to the degree of depth in processing hole, can proceed to by the positive and negative control screw rod that transfers of motor or produce screwed hole, reaching the purpose of adjusting screw rod length, realize only needing the purpose of a boring cutter when processing the hole of different depth, thus reducing processing cost。
2. cutter groove center line described in forms an angle identical with tool orthogonal rake with boring bar body central axis, it is possible to improves the anterior angle increasing cutter, makes cutter and boring bar in cutting process, improves the holding capacity of boring bar, increases the stability of processing dimension。
3. described in, boring bar body surface is inlaid with hard alloy bar, solves boring bar body intermediate support position problem easy to wear, improves boring bar service life。
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention。
Detailed description of the invention
Below in conjunction with specific embodiments and the drawings, the present invention is further illustrated。
As shown in Figure 1, a kind of telescopic boring bar, including boring bar body 1, it is provided with cutter groove 2 in boring bar body 1 leading section, and communicate and the cutter positioning hole 3 vertical with cutter groove 2 with cutter groove 2, boring bar body 1 rear end is provided with handle of a knife and connects seat 4, screwed hole is offered along axis in described boring bar body 1 rear end, screw rod 5 is coordinated in screwed hole, connect in seat 4 at handle of a knife and motor 6 is set, motor output shaft 7 is connected with screw rod 5, and described cutter groove 2 centrage forms an angle identical with tool orthogonal rake with boring bar body 1 axis。
Described boring bar body 1 intermediate support surface of position is inlaid with hard alloy bar 8。And described hard alloy bar 8 is evenly arranged along boring bar body 1 outer surface circumference。
The boring bar body 1 of the present invention is scalable, according to the degree of depth in processing hole, can proceed to by the positive and negative control screw rod 5 that transfers of motor 6 or produce screwed hole, it is achieved stretching of boring bar body 1, and then realize only needing the purpose of a boring cutter when processing the hole of different depth, thus reducing processing cost。Described cutter groove 2 centrage forms an angle identical with tool orthogonal rake with boring bar body 1 central axis, it is possible to improves the anterior angle increasing cutter, makes cutter and boring bar in cutting process, improves the holding capacity of boring bar, increases the stability of processing dimension。Described boring bar body 1 surface inserting has hard alloy bar 8, solves boring bar body 1 intermediate support position problem easy to wear, improves boring bar service life。
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all any amendment, equivalent replacement and improvement etc. made within the spirit and principles in the present invention, should be included within protection scope of the present invention。
Claims (4)
1. a telescopic boring bar, including boring bar body, it is provided with cutter groove in boring bar body leading section, and communicate and the cutter positioning hole vertical with cutter groove with cutter groove, boring bar body rear end is provided with handle of a knife and connects seat, it is characterised in that: screwed hole is offered along axis in described boring bar body rear end, screw rod is coordinated in screwed hole, connecting in seat at handle of a knife and arrange motor, motor output shaft is connected with screw rod, and described cutter groove center line forms an angle identical with tool orthogonal rake with boring bar body axis。
2. telescopic boring bar according to claim 1, it is characterised in that: described boring bar body surface is inlaid with hard alloy bar。
3. telescopic boring bar according to claim 1, it is characterised in that: described hard alloy bar is embedded in boring bar body intermediate support position。
4. telescopic boring bar according to claim 1, it is characterised in that: described hard alloy bar is evenly arranged along boring bar body outer surface circumference。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410703334.5A CN105689743A (en) | 2014-11-26 | 2014-11-26 | Telescopic boring rod |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410703334.5A CN105689743A (en) | 2014-11-26 | 2014-11-26 | Telescopic boring rod |
Publications (1)
Publication Number | Publication Date |
---|---|
CN105689743A true CN105689743A (en) | 2016-06-22 |
Family
ID=56294940
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201410703334.5A Pending CN105689743A (en) | 2014-11-26 | 2014-11-26 | Telescopic boring rod |
Country Status (1)
Country | Link |
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CN (1) | CN105689743A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106363202A (en) * | 2016-11-08 | 2017-02-01 | 湖北三江航天险峰电子信息有限公司 | Tool bar mechanism for turning machining of series of deep blind holes |
CN108608014A (en) * | 2018-03-22 | 2018-10-02 | 苏州铨木智能科技有限公司 | A kind of cutter locating structure and positioning method of novel spindle motor |
-
2014
- 2014-11-26 CN CN201410703334.5A patent/CN105689743A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106363202A (en) * | 2016-11-08 | 2017-02-01 | 湖北三江航天险峰电子信息有限公司 | Tool bar mechanism for turning machining of series of deep blind holes |
CN108608014A (en) * | 2018-03-22 | 2018-10-02 | 苏州铨木智能科技有限公司 | A kind of cutter locating structure and positioning method of novel spindle motor |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160622 |
|
WD01 | Invention patent application deemed withdrawn after publication |