CN101324790B - Cutting tool design method for removing cross hole bur and cutting tool - Google Patents
Cutting tool design method for removing cross hole bur and cutting tool Download PDFInfo
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- CN101324790B CN101324790B CN2008100404955A CN200810040495A CN101324790B CN 101324790 B CN101324790 B CN 101324790B CN 2008100404955 A CN2008100404955 A CN 2008100404955A CN 200810040495 A CN200810040495 A CN 200810040495A CN 101324790 B CN101324790 B CN 101324790B
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- cross
- cutter
- millimeters
- circular arc
- cross bore
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Abstract
The invention discloses a cutter for removing burrs of cross holes. The cutting edge of the cutter consists of a first circular arc, a second circular arc, and a third circular arc which are tangent to each other. The semidiameter of the first circular arc is 2.5 millimeters; the semidiameter of the second circular arc is 11.8 millimeters; and the semidiameter of the third circular arc is 2.5 millimeters. The invention further discloses a method for designing the cutter for removing the burrs of cross holes. The process period by adopting linear interpolation is significantly reduced compared with the process period by adopting the circular interpolation of linkage of three shafts.
Description
Technical field
The present invention relates to the technology of hydraulic pressure class part, particularly a kind of Tool Design method and this cutter that is used for the removing cross hole burr.
Background technology
About hydraulic pressure class part requires high especially to cleanliness and burr, and a lot of hydraulic part holes all are crisscross, the place that intersects in the hole during machining is easy to generate the flange burr most, and remove burr with galvanochemistry or other on-mechanical processing technology at the burr at cross bore place, cost will be higher, if this part of processing is removed burr with chamfering method simultaneously on numerically-controlled machine, one-tenth should be minimum.
Fig. 1-1～Fig. 1-4, introduce the intersection situation of hole A (diameter 18.8) and hole B (diameter 8.0), about the domestic and international general processing technology of hole A and hole B is, processing A reprocesses the B hole in the hole earlier, because metal cutting is bound to produce burr, so understand in the jagged overturning A hole during cutting B hole, on lathe, remove the burr in this crossing hole at present, the technology of generally using both at home and abroad is as follows at present: technology both domestic and external is to enter from the A hole with a standard spherical tool on the CNC of FANUC control system numerically-controlled machine, walking a three-shaft linkage circular interpolation and two hole intersection chamfering 0.2mm are guaranteed burr is removed, is that the program of cross bore processing of external φ 8.0mm and φ 18.8mm is as follows below:
O1117
G90G00Z9.5Z4.0M33
G91G01G42X4.0D17F2000
N11G02X-0.536Y-2.0Z-0.325R4.0F800
N12G02X-1.464Y-1.464Z-0.665R4.0
N13G02X-2.0Y-0.536Z-0.193R4.0
N21G02X-2.0Y0.536Z0.193R4.0
N22G02X-1.464Y1.464Z0.665R4.0
N23G02X-0.536Y2.0Z0.325R4.0
N31G02X0.045Y0.6Z0.019R4.0
N32G02X0.491Y1.4Z-0.142R4.0
N33G02X1.464Y1.464Z-0.28R4.0
N34G02X2.0Y0.536Z-0.214R4.0
N41G02X2.0Y-0.536Z0.214R4.0
N42G02X1.464Y-1.464Z0.28R4.0
N43G02X0.491Y-1.4Z0.142R4.0
N44G02X0.045Y-0.6Z-0.019R4.0
G90G40G01X18.0Y-0.6
G90G00Z200.0M34
N99
M99
With the standard spherical tool be at the process characteristic of the CNC of FANUC control system numerically-controlled machine three-shaft linkage circular interpolation, the spherical tool size is not done particular design, the cutter sphere diameter compares little the getting final product of bore dia that is entered, concrete shape sees also Fig. 2, need only the coordinate of calculating intersection with the projection mapping when writing a program, get final product written-out program.Method is simple, but the program of writing out processing is consuming time longer.
Summary of the invention
The present invention is the shortcoming that overcomes above-mentioned prior art long processing time, and purpose provides a kind of Tool Design method and this cutter that is used for the removing cross hole burr, and this cutter is removed the entry burr to the cross bore chamfering.
For achieving the above object, technical scheme of the present invention is:
A kind of Tool Design method that is used for the removing cross hole burr may further comprise the steps:
1) obtains first cross bore and the second cross bore diameter value of importing computing machine;
2) with the scanning shearing in the PROE three-dimensional software and the drawing tool of rotational shear, the cross section with same cross section is done scanning and rotated on-the-fly modifies the chamfering that marks this first cross bore and second cross bore until painting;
3) with cross section, the cross section of described scanning and rotation, with designing the shape of cutter in the PROE three-dimensional software and making cutter as the blade of cutter;
4) make the program coordinate points of CNC lathe with the track of scanning;
5) process chamfering with CNC lathe and the good cutter of manufacturing, burr is removed.
The diameter of first cross bore is 18.8 millimeters, and the diameter of second cross bore is 8 millimeters.
The chamfering of first cross bore and second cross bore is 0.2 millimeter.
Cutter in the said method, the cutting edge of this cutter is made up of first circular arc, second circular arc and three tangent arcs of three-arc.
The radius of described first circular arc is 2.5 millimeters, and the radius of second circular arc is 11.8 millimeters, and the radius of three-arc is 2.5 millimeters.
Compared with prior art, the invention has the beneficial effects as follows:
The cutting edge of cutter of the present invention is that several tangent arcs are formed, the size of the tangent arc that this cutter is formed is to draw up the tangent arc size by the rotational shear function of proe three-dimensional software and scanning shear mode, and the proe three-dimensional software can dynamic similation and modification size.By technology of the present invention and prior art contrast, the present invention adopts significantly reduce the linear interpolation time more required than the circular interpolation of three-shaft linkage required process time.
Description of drawings
Fig. 1-the 1st, the front elevation of hydraulic part A, B cross bore
Fig. 1-2 is the side view of hydraulic part A, B cross bore
Fig. 1-the 3rd, the vertical view of hydraulic part A, B cross bore
Fig. 1-the 4th, the enlarged drawing of chamfering among Fig. 1-1
Fig. 2 is the standard spherical tool synoptic diagram of prior art
Fig. 3 is the partial sectional view of cutter of the present invention.
Embodiment
The present invention will be further described below in conjunction with drawings and Examples, but should not limit protection scope of the present invention with this.
The present invention designs a kind of special shape cutter by the moulding of proe three-dimensional software, enters from the B hole, walks a straight line and circular interpolation and two hole intersection chamfering 0.2mm is guaranteed burr is removed, and is that the program of cross bore processing of φ 8.0 and φ 18.8 is as follows below:
04117
G90G00X4.0Y-0.6S7000M07M08
Z-23.26
G01X5.0X4.95F800
G03X5.08X5.03Y-0.12R1.5F800
G00X0Y-0.6
G00X-4.0Y0.6
G01X-4.95F800
G02X-5.08X-5.03Y0.12R1.5
G00Y0.6X0
X0Y0
Z32.0
M99
The coordinate of the shape of tool of the linear interpolation that the present invention is used and the program of being write all is a difficult point, because the interpolation that takes the air line is 0.2 with the intersection chamfering, the shape of tool must not be the spherical cutter of standard, and the coordinate points difficulty of program is looked for simultaneously.
The new process that solves above difficult point is as follows:
1) with PROE moulding entity, paints the sterogram that marks φ 18.8 and φ 8 cross bore.
2) scanning shearing and the rotational shear function of usefulness PROE, painting the chamfering that marks φ 18.8 and φ 8 hole infalls with the cross section of same cross section do scanning and rotation is 0.2mm, once obtaining chamfering with rotational shear and scanning shearing is that 0.2mm is impossible, but on-the-fly modifying of PROE is very easy, when PROE rotational shear and scanning shear to chamfering be greater than or less than 0.2mm, as long as the cross section that will rotate and scan and the track of scanning on-the-fly modify, up to rotational shear and scanning shear the chamfering that arrives get final product at 0.2mm.
3) do the cross section of the blade of cutter with the cross section of scanning and rotation, design the shape of cutter and make cutter, the shape of tool sees also Fig. 3, and Fig. 3 is the partial sectional view of cutter of the present invention, among Fig. 3
Be 10.64 millimeters,
It is 6.8 millimeters.The cutting edge of this cutter is made up of first circular arc, second circular arc and three tangent arcs of three-arc.The radius of described first circular arc is 2.5 millimeters, and the radius of second circular arc is 11.8 millimeters, and the radius of three-arc is 2.5 millimeters.
4) make the program coordinate points of CNC lathe with the track of scanning.
5) cutter of getting well with CNC lathe and manufacturing processes the chamfering of 0.2mm.
Technological advantage of the present invention: the one, shape of tool method for designing novelty, the 2nd, the program that this technology is write is short process time.
Following scheme one and two is example explanation this programme weak points process time that intersect the hole by diameter 18.8mm and diameter 8mm.
Scheme one: circular interpolation with the spherical cutter of standard (at present in the world generally usefulness) processing tool machining program on opportunity is:
G90G00Z9.5Z4.0M33
G91G01G42X4.0D17F2000
N11G02X-0.536Y-2.0Z-0.325R4.0F800
N12G02X-1.464Y-1.464Z-0.665R4.0
N13G02X-2.0Y-0.536Z-0.193R4.0
N21G02X-2.0Y0.536Z0.193R4.0
N22G02X-1.464Y1.464Z0.665R4.0
N23G02X-0.536Y2.0Z0.325R4.0
N31G02X0.045Y0.6Z0.019R4.0
N32G02X0.491Y1.4Z-0.142R4.0
N33G02X1.464Y1.464Z-0.28R4.0
N34G02X2.0Y0.536Z-0.214R4.0
N41G02X2.0Y-0.536Z0.214R4.0
N42G02X1.464Y-1.464Z0.28R4.0
N43G02X0.491Y-1.4Z0.142R4.0
N44G02X0.045Y-0.6Z-0.019R4.0
G90G40G01X18.0Y-0.6
G90G00Z200.0
N99
M99
Above CNC numerically-controlled machine program lathe process time is 3.14 * 2/800=0.0079 minute.
Scheme two: straight line and circular interpolation special tool (scheme of new technology) processing tool machining program on opportunity is:
G90G00X4.0Y-0.6S7000M07M08
Z-23.26
G01X5.0X4.95F800
G03X5.08X5.03Y-0.12R1.5F800
G00X0Y-0.6
G00X-4.0Y0.6
G01X-4.95F800
G02X-5.08X-5.03Y0.12R1.5
G00Y0.6X0
X0Y0
Z32.0
M99
Above CNC numerically-controlled machine program lathe process time is 2.5/800=0.0032 minute.One process time of scheme is 0.0079 minute in sum, and two process times of scheme are 0.0032 minute, so scheme is short two process times.
The above is preferred embodiment of the present invention only, is not to be used for limiting practical range of the present invention.Be that all equivalences of doing according to the content of the present patent application claim change and modification, all should be technology category of the present invention.
Claims (5)
1. Tool Design method that is used for the removing cross hole burr is characterized in that this method may further comprise the steps:
1) obtains first cross bore and the second cross bore diameter value of importing computing machine;
2) with the scanning shearing in the PROE three-dimensional software and the drawing tool of rotational shear, the cross section with same cross section is done scanning and rotated on-the-fly modifies the chamfering that marks this first cross bore and second cross bore until painting;
3) with cross section, the cross section of described scanning and rotation, with designing the shape of cutter in the PROE three-dimensional software and making cutter as the blade of cutter;
4) make the program coordinate points of CNC lathe with the track of scanning;
5) process chamfering with CNC lathe and the good cutter of manufacturing, burr is removed.
2. the method for removing cross hole burr according to claim 1, the diameter that it is characterized in that described first cross bore are 18.8 millimeters, and the diameter of second cross bore is 8 millimeters.
3. the method for removing cross hole burr according to claim 1, the chamfering that it is characterized in that described first cross bore and second cross bore is 0.2 millimeter.
4. one kind as the cutter in the method as described in arbitrary claim in the above-mentioned claim 1～3, it is characterized in that the cutting edge of this cutter is made up of first circular arc, second circular arc and three tangent arcs of three-arc.
5. cutter according to claim 4, the radius that it is characterized in that described first circular arc are 2.5 millimeters, and the radius of second circular arc is 11.8 millimeters, and the radius of three-arc is 2.5 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100404955A CN101324790B (en) | 2008-07-11 | 2008-07-11 | Cutting tool design method for removing cross hole bur and cutting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100404955A CN101324790B (en) | 2008-07-11 | 2008-07-11 | Cutting tool design method for removing cross hole bur and cutting tool |
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| Publication Number | Publication Date |
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| CN101324790A CN101324790A (en) | 2008-12-17 |
| CN101324790B true CN101324790B (en) | 2010-08-04 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102073474B (en) * | 2010-12-17 | 2014-11-12 | 佛山科学技术学院 | CNC (computer numerical control)-interpolated parallel pipeline computing method |
| CN102133662B (en) * | 2011-01-11 | 2012-08-08 | 重庆红宇精密工业有限责任公司 | Tool for processing burrs at through position of through hole |
| CN102441776B (en) * | 2011-09-14 | 2013-08-07 | 中国航空工业第六一八研究所 | Deburring method for intersecting positions of spatial intersection holes |
| CN102489733B (en) * | 2011-12-16 | 2013-05-29 | 南京众得利自动化机械有限公司 | Cutter for chamfering orifice of intersection line |
| CN102921987B (en) * | 2012-11-05 | 2014-10-29 | 河北华北柴油机有限责任公司 | Fine deep hole machining burr preventing method |
| CN102909419A (en) * | 2012-11-21 | 2013-02-06 | 铜陵市永生机电制造有限责任公司 | Deurring and chamfering tool for deep cross holes |
| CN104842014A (en) * | 2015-06-03 | 2015-08-19 | 铜陵市永生机电制造有限责任公司 | Deburring device for cross-hole inner holes different in diameter |
| CN109719353A (en) * | 2019-01-02 | 2019-05-07 | 桂林福达曲轴有限公司 | A kind of cutter and its application method removing flash removed for crankshaft intersection oilhole |
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