CN102009196A - Back spot facing machining cutter and application method thereof - Google Patents
Back spot facing machining cutter and application method thereof Download PDFInfo
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- CN102009196A CN102009196A CN2010102948994A CN201010294899A CN102009196A CN 102009196 A CN102009196 A CN 102009196A CN 2010102948994 A CN2010102948994 A CN 2010102948994A CN 201010294899 A CN201010294899 A CN 201010294899A CN 102009196 A CN102009196 A CN 102009196A
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Abstract
The invention discloses a back spot facing machining cutter and an application method thereof. The cutter comprises a cutter bar, a cutter head and a bolt, wherein a cutter head mounting hole is formed on the front part of the cutter bar, and the cutter head is fixed in the cutter head mounting hole; a threaded through hole is formed at the front end of the cutter bar, and the bolt is arranged in the through hole; and the bolt is fixedly connected with the cutter head. The back spot facing machining cutter has the advantages that: the problems of manual cutter assembly and disassembly, shut down and low machining efficiency during the traditional machining process of back spot facing can be solved by designing the special back spot facing machining cutter which has a smart manufacturing structure and is simple and practical, and automatic machining process of the back spot facing is realized; a special cutter is provided for the equipment with high machining automation degree, such as horizontal machining equipment, vertical machining equipment and the like, a mechanical arm can automatically change a cutter, and the machining efficiency can be greatly improved.
Description
Technical field:
The invention belongs to the cutter manufacture field, relate to a kind of back of the body spot-facing process tool and application process thereof, especially a kind of cutting tool special for processing and application process thereof that is used for back of the body spot-facing on the high-tension switch gear part.
Background technology:
In the prior art, when processing back of the body spot-facing, one is from big hole end surface feed, and the processing aperture is processed macropore then earlier.But some part is because the restriction of structure, and from big hole end surface feed, cutter and part can interfere, can only be from the feed of aperture end face, and processing aperture earlier enters cutter the bottom of macropore then, oppositely (from the macropore bottom to the aperture direction) processing macropore.This macropore is called " back of the body spot-facing ", and this processing method is called " processing of back of the body ream ", and employed cutter is called " back of the body countersink ", as shown in Figure 1.
Processing is back of the body spot-facing similarly, all is to process on boring machine, and process principle is as follows: make one dise knife bar, cutter tip is fixed on the dise knife bar.For guaranteeing knife bar intensity, knife bar is done more as far as possible, can't pass through from the aperture of front behind the installation cutter head.Therefore, add man-hour, earlier cutter head is not installed, knife bar refills cutter head after passing from aperture, carries out the processing of opposite direction feeding back of the body ream then.After treating that a hole machines, lathe suspends, and with the cutter head dismounting, knife bar is return, and knife bar repeats above process from the center feed in another hole.As seen, hole of every processing, the process of all will experience dress cutter, processing, shutting down, unloading cutter, working (machining) efficiency is very low.
Horizontal Machining centers is the high-efficiency automatic process equipment, and tool changing all is to be finished automatically by manipulator, and the centre need not to shut down.Adopt original tradition back of the body countersink, not only influence working (machining) efficiency, and according to machine tool structure, manual tool changing is violated safe operation rules, and has certain potential safety hazard.
The back of the body countersink that has a few cutter manufacturers of family to produce abroad do not need manual loading and unloading cutter, but structure is very complicated, and cutter is provided with the device of similar clutch, can realize opening automatically and regaining of blade, but cost an arm and a leg that cost is too high.
Summary of the invention:
The invention provides a kind of back of the body spot-facing cutting tool special for processing, use this cutter can realize carrying on the back the automatic processing of spot-facing, on common boring machine, use and to avoid shutting down and manual loading and unloading cutter; On vertical machining centre and horizontal Machining centers, use, can realize the manipulator automatic tool changer, improve the working (machining) efficiency of back of the body spot-facing.
The objective of the invention is to overcome the shortcoming of above-mentioned prior art, a kind of back of the body spot-facing process tool is provided, comprise knife bar and cutter head, described knife bar front portion is provided with the cutter head installing hole, is installed with cutter head in the cutter head installing hole; Described knife bar front end is provided with tapped through hole, on this through hole screw is installed; Described screw is fixedlyed connected with cutter head.
Described knife bar top is the handle of a knife retaining part, and cross section is circular, and the bottom is for adding man-hour and part contact site, and cross section is docked in opposite directions by two identical circular arcs and forms; Described cutter head installing hole is arranged on the knife bar front end face.
The material of described knife bar is 40Cr, and its quenching and tempering hardness is that HB220-260, quenching hardness are HRC30-40.
The application process of described back of the body spot-facing process tool, at first, with knife bar eccentric feed from aperture; Secondly, make knife bar drive cutter head rotation processing macropore; At last, after macropore machines, eccentric feed again.
The diameter of described aperture is φ 14.The diameter of described macropore is φ 25.
Special use back of the body spot-facing cutter as shown in Figure 2, this cutter is made up of knife bar, cutter head, screw three parts, wherein knife bar is a core component, the eccentric structure of knife bar employing and retaining part, eccentric size designs according to drawing, knife bar adopts " jujube nuclear " shape, this structure can increase the intensity of knife bar, the arc diameter on both sides designs according to the aperture of part, needs in the programming to carry out cutter under the skew of main shaft according to eccentric size, enters the bottom, hole, cutter is got back to the center of machining hole then, rotary main shaft cuts, and realizes the back of the body ream processing of hole in piece part.
Accompanying drawing 3 is special holder figure of φ 14 back of the body ream φ 25 (or φ is below 25).
Wherein modified hardness HB220～260 that require; Quenching requires hardness HRC30～40.
Advantage of the present invention is, by designing and producing ingenious, the simple and practical back of the body spot-facing cutting tool special for processing of structure, solved manual loading and unloading cutter in the back of the body spot-facing conventional processes, shutdown, problem that working (machining) efficiency is low, realized the automatic process of back of the body spot-facing; Add for crouching and to stand and the high equipment of atomization degree such as add a kind of dedicated tool is provided, and can realize the manipulator automatic tool changer.With φ 14 back of the body ream φ 25 (φ 25 hole depth 2mm) is example, adopts this invention, and Kong Yuexu of back of the body ream 1 minute processed 4 Kong Yuexu 4 minutes, and processed 4 Kong Yuexu 30 minutes with original traditional cutter and method, had improved working (machining) efficiency greatly.
Description of drawings:
Fig. 1 is the back of the body spot-facing structural representation of prior art;
Fig. 2 carries on the back the countersink tool structural representation for the present invention;
Fig. 3 is a back of the body countersink bar structural representation of the present invention.
Fig. 4 adds tool position schematic diagram in man-hour for back of the body ream;
Tool position schematic diagram when Fig. 5 is the advance and retreat cutter;
Wherein: 1 is knife bar; 2 is screw; 3 is cutter head.
The specific embodiment:
Below in conjunction with accompanying drawing the present invention is done and to describe in further detail:
Referring to Fig. 2, a kind of back of the body spot-facing process tool comprises knife bar and cutter head, and described knife bar front portion is provided with the cutter head installing hole, is installed with cutter head in the cutter head installing hole; Described knife bar front end is provided with tapped through hole, on this through hole screw is installed; Described screw is fixedlyed connected with cutter head.
Described knife bar top is the handle of a knife retaining part, and cross section is circular, and the bottom is for adding man-hour and part contact site, and cross section is docked in opposite directions by two identical circular arcs and forms; Described cutter head installing hole is arranged on the knife bar front end face.
Referring to Fig. 4, on " jujube nuclear " shape knife bar two φ 13 circular arcs are arranged, the center of circle of one of them φ 13 circular arc overlaps with the center of circle in knife bar retaining part φ 20 and φ 14 holes, the eccentric 6mm in the center of circle in the center of circle of another φ 13 circular arcs and knife bar retaining part φ 20 and φ 14 holes.The long 6mm of cutter head.
Referring to Fig. 5, back of the body ream adds man-hour, and " jujube nuclear " shape knife bar eccentric feed from φ 14 holes promptly is close to φ 14 hole wall feeds with φ 13 circular arcs of the eccentric 6mm in φ 14 holes, and the gap is 0.5mm, and this moment, cutter head and φ 14 hole wall gaps also were 0.5mm.After entering the bottom, φ 25 holes that is about to processing when knife bar, knife bar is got back to center, φ 14 hole, and referring to Fig. 4, concentric φ 13 circular arcs in this moment and φ 14 holes are close to φ 14 hole walls, and the gap is 0.5mm.φ 25 is processed in the cutter rotation then, after deep processing is finished as requested, again according to the eccentric withdrawing of Fig. 5.A back of the body spot-facing promptly machines.
According to design principle of the present invention, we have designed and produced φ 19 back of the body ream φ 40, φ 24 back of the body ream φ 46 special-purpose back of the body countersink tools again, and are applied in the actual production, and result of use is good.
Above content is to further describing that the present invention did in conjunction with concrete preferred implementation; can not assert that the specific embodiment of the present invention only limits to this; for the general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; can also make some simple deduction or replace, all should be considered as belonging to the present invention and determine scope of patent protection by claims of being submitted to.
Claims (7)
1. a back of the body spot-facing process tool comprises knife bar and cutter head, and it is characterized in that: described knife bar front portion is provided with the cutter head installing hole, is installed with cutter head in the cutter head installing hole; Described knife bar front end is provided with tapped through hole, on this through hole screw is installed; Described screw is fixedlyed connected with cutter head.
2. a kind of according to claim 1 back of the body spot-facing process tool is characterized in that: described knife bar top is the handle of a knife retaining part, and cross section is circular, and the bottom is for adding man-hour and part contact site, and cross section is docked in opposite directions by two identical circular arcs and forms; Described cutter head installing hole is arranged on the knife bar front end face.
3. a kind of according to claim 1 back of the body spot-facing process tool is characterized in that: described screw hole is arranged in the middle of two circular arcs of knife bar end face.
4. a kind of according to claim 1 back of the body spot-facing process tool, it is characterized in that: the material of described knife bar is 40Cr, its quenching and tempering hardness is that HB220-260, quenching hardness are HRC30-40.
5. based on the application process of claim 1,2,3,4 described back of the body spot-facing process tools, it is characterized in that: at first, with knife bar eccentric feed from aperture; Secondly, make knife bar drive cutter head rotation processing macropore; At last, after macropore machines, eccentric again withdrawing.
6. as the application process of back of the body spot-facing process tool as described in the claim 5, it is characterized in that: the diameter of described aperture is φ 14mm.
7. as the application process of back of the body spot-facing process tool as described in the claim 5, it is characterized in that: the diameter of described macropore is φ 25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102948994A CN102009196A (en) | 2010-09-28 | 2010-09-28 | Back spot facing machining cutter and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102948994A CN102009196A (en) | 2010-09-28 | 2010-09-28 | Back spot facing machining cutter and application method thereof |
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| CN102009196A true CN102009196A (en) | 2011-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010102948994A Pending CN102009196A (en) | 2010-09-28 | 2010-09-28 | Back spot facing machining cutter and application method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103029166A (en) * | 2011-09-29 | 2013-04-10 | 日立金属株式会社 | Perforating device |
| CN108971519A (en) * | 2018-09-18 | 2018-12-11 | 中船动力有限公司 | Cylinder of diesel engine bottom bolts hole back side mounting surface scrapes quadratic method |
| CN110355400A (en) * | 2019-07-26 | 2019-10-22 | 苏州网宏自动化设备有限公司 | A kind of integrated machine of multistation spot-facing of valve |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2756706A1 (en) * | 1977-12-20 | 1979-06-28 | Bilz Hermann Gmbh & Co | Counterboring tool for rearward sinking - has head and support shaft positioned eccentrically w.r.t. main shaft |
| CN201267880Y (en) * | 2008-07-01 | 2009-07-08 | 南车戚墅堰机车车辆工艺研究所有限公司 | Reverse boring knife |
| CN101758248A (en) * | 2009-12-18 | 2010-06-30 | 浙江红马铸造有限公司 | Counterboring bar |
-
2010
- 2010-09-28 CN CN2010102948994A patent/CN102009196A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2756706A1 (en) * | 1977-12-20 | 1979-06-28 | Bilz Hermann Gmbh & Co | Counterboring tool for rearward sinking - has head and support shaft positioned eccentrically w.r.t. main shaft |
| CN201267880Y (en) * | 2008-07-01 | 2009-07-08 | 南车戚墅堰机车车辆工艺研究所有限公司 | Reverse boring knife |
| CN101758248A (en) * | 2009-12-18 | 2010-06-30 | 浙江红马铸造有限公司 | Counterboring bar |
Non-Patent Citations (4)
| Title |
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| 《制造技术与机床》 20080430 崔丽娟 数控反锪加工刀具的原理和设计 第127-130页 1-7 第2008年卷, 第4期 * |
| 《机械工人.冷加工》 19920630 叶松涛 倒锪平面刀杆 第15页 1-7 第1992年卷, 第6期 * |
| 叶松涛: "倒锪平面刀杆", 《机械工人.冷加工》 * |
| 崔丽娟: "数控反锪加工刀具的原理和设计", 《制造技术与机床》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103029166A (en) * | 2011-09-29 | 2013-04-10 | 日立金属株式会社 | Perforating device |
| CN103029166B (en) * | 2011-09-29 | 2015-03-18 | 日立金属株式会社 | Perforating device |
| CN108971519A (en) * | 2018-09-18 | 2018-12-11 | 中船动力有限公司 | Cylinder of diesel engine bottom bolts hole back side mounting surface scrapes quadratic method |
| CN110355400A (en) * | 2019-07-26 | 2019-10-22 | 苏州网宏自动化设备有限公司 | A kind of integrated machine of multistation spot-facing of valve |
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Application publication date: 20110413 |