CN105499678B - A kind of processing method and tool of special-shaped Varied section roll pass - Google Patents
A kind of processing method and tool of special-shaped Varied section roll pass Download PDFInfo
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- 238000003672 processing method Methods 0.000 title claims abstract description 26
- 238000003801 milling Methods 0.000 claims abstract description 44
- 238000000034 method Methods 0.000 claims abstract description 36
- 230000008569 process Effects 0.000 claims abstract description 24
- 238000005520 cutting process Methods 0.000 claims abstract description 22
- 238000010791 quenching Methods 0.000 claims abstract description 11
- 230000000171 quenching effect Effects 0.000 claims abstract description 11
- 241000220317 Rosa Species 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 238000012545 processing Methods 0.000 abstract description 25
- 238000003754 machining Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 description 14
- 238000000227 grinding Methods 0.000 description 11
- 229910001651 emery Inorganic materials 0.000 description 7
- 230000008859 change Effects 0.000 description 4
- 238000005097 cold rolling Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000003746 surface roughness Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009760 electrical discharge machining Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/02—Milling-cutters characterised by the shape of the cutter
- B23C5/10—Shank-type cutters, i.e. with an integral shaft
- B23C5/1009—Ball nose end mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/02—Shape or construction of rolls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C3/00—Milling particular work; Special milling operations; Machines therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Milling Processes (AREA)
Abstract
The invention discloses a kind of processing method and tool of special-shaped Varied section roll pass, it is related to pass machining field, solves the problems, such as that prior art machining accuracy and processing efficiency are low.The processing method includes rough milling process, quenching process and finish-milling process, the radius of curvature for rough milling the feed path direction of process is equal to pass radial section radius of curvature, the radius of curvature in vertical feed path direction is equal to pass axial cross section radius of curvature, the radius of curvature in the feed path direction of finish-milling process is equal to pass axial cross section radius of curvature, the radius of curvature in vertical feed path direction is equal to pass radial section radius of curvature, rough mill in process, axial cutting depth ap=0.30~0.60mm, radial cutting depth ap=1~2mm, in finish-milling process, axial cutting depth ap=0.05~0.30mm, radial cutting depth ap=0.05~0.25mm.Mismachining tolerance of the present invention is smaller, high in machining efficiency.
Description
Technical field
The present invention relates to pass machining apparatus field, and in particular to a kind of processing method of special-shaped Varied section roll pass and
Tool.
Background technology
Cold rolling is the important way for producing precision tube, and roll is one of important component of cold pilger mill, is to roll
The primary deformable mould of manufacturing, its processing efficiency influence production and are normally carried out, and its crudy directly determines drawn and rolled tube
Quality and efficiency, the processing for special-shaped Varied section roll pass is even more so.The profile of special-shaped Varied section roll pass can
To regard an annular ditch groove on cylinder as, the shape in any section is not rounded on cylinder Normal plane on pass
The curve of shape, and the size of pass is then descending, is gradually transitions from the size more than pipe suitable with the size of finished product.
When the finished product of rolling is pipe, any section is shaped as non-circular camber line on pass, and when the finished product of rolling is abnormity
Guan Shi, the shape in any section of pass is then the curve suitable with the profile of production tube cross section.Even if using cold-rolling process come
Produce simplest pipe, the radius of curvature and central coordinate of circle of the circular arc on any section of roll pass are also change.Due to
Mold shape is complicated, difficulty of processing is big, so, the processing cost of mould is always in occupation of in the total production cost of highorder accuracy schemes
Major part, how efficiently, processing that is high-quality, being achieved at low cost cold pilger mill roll pass, cold rolled tube is played to normal
The production capacity of machine, reduction production cost have great importance.
At present, the method for processing this type part mainly has three kinds：
A) direct forming method, that is, the zero of required form factor is obtained by not removing the molding mode of material
The method of part, including punch forming, cold rolling shaping, casting and forging molding etc.；
B) mechanical movement synthesis processing method, that is, excess stock is cut off come required for obtaining using cutter, grinding tool etc.
The method of the part of form factor, including turnery processing, Milling Process, planing operation and grinding etc.；
C) special process method, traditional diamond-making technique is different from, utilizes electric energy, heat energy, chemical energy and special machine energy etc.
Realize the processing method for removing or increasing material and obtaining required part, including linear cutter, electrical discharge machining etc..
Wherein, the dimensional accuracy of the non-circular sections part of straight forming method shaping is not high, and surface roughness is also difficult to reach
To design requirement；In addition, if the cross sectional shape of part is extremely complex, cannot or be difficult to be obtained by special process method
The non-circular sections part needed, and the production efficiency of the special process is very low, and processing cost is relatively very high.For these reasons,
In the last few years, the method that manufacturing typically all selects mechanical movement synthesis processing.
1) pattern is processed：The KB series of loops concave roll machining tools of West Germany's research and development.The paired clamping of roll pass is in KB systems
On row pass machining lathe, two roll pass synchronous axial systems of Machine-Tool Control, cutter is while high speed rotates, template contral knife
The radial feed of tool, so as to complete the processing of roll pass curved surface.
2) grinding：
A) the CNC600/800 roll pass numerical-controlled grinder specials that Sweden GRANLUND companies develop.In the control of digital control system
Under system, roll rotates to a determination position on A direction of principal axis, and emery wheel is accordingly according to numerical control program feeding and transverse shifting
The circular arc of size required by grinding a design, while emery wheel will also be swung on C direction of principal axis, just can so grind size essence
Degree meets desired roll pass.
B) the GG52 pass grinding machines that German MANNESMANN DEMAG companies develop.GG52 passes grinding machine has five seats
Parameter, X, Z and C are grinding axles, and Y and A are correction axles.In grinding, high-precision electronic detection means can measure emery wheel and hang down
Error caused by straight vibrations, center-biased etc., while error compensation system compensates center line by controlling emery wheel to swing up and down
And reduce manufacturing tolerance, so as to obtain the pass accurate dimension for meeting Design Requirement Drawing.C axles are used for controlling roll pass
Rotation, so can be to be ground the pass in whole circumference.A axles control the rotation of emery wheel, exist in Grinding Process medium plain emery wheel
Rotation alpha angle under the control of digital control system, so that the emery wheel moment is parallel with pass, improve the processing of pass working curved surface
Precision.
4) at present, the domestic equipment for being used for processing roll pass is that the Soviet Union introduced according to 1860s processes
The lathe of semicircle concave roll copies what is formed, and one roll of production needs to use two equipment, and one adds for carrying out heavy boring
Work, one is used for completing grinding.
Above-mentioned special-shaped Varied section roll pass is machined with following deficiency：
(1) although KB-47 annular distance type roller machine tool energy processing roll passes, the critical component of the lathe is to lean on
Mould, the surface accuracy of roll pass determine by the precision of pattern, and when processing different types of roll pass, just need more
Change pattern, it is seen that the artificial workload that repairs a die is very big, and cost is very high；
(2) grinding can obtain the pass curved surface compared with high manufacturing accuracy, but processing cost is very high, and processing efficiency is but very
It is low, have a strong impact on the manufacturing of roll；
(3) lathe of Soviet Union's processing semicircle concave roll is copied, equipment is heavy, and the song of pass is processed by pattern
Line, it is difficult to ensure that machining accuracy, not only low production efficiency, the pass processed is of poor quality, far from meeting China's cold rolled tube
The demand of industry development.
(4) several specialized working machine tool of machine more than can only all process the roll pass of pipe, and can not processing profiled pipe
The roll pass of material.
Therefore, a kind of high accuracy, efficient special-shaped Varied section roll pass processing technology are needed badly, to meet China's cold rolling
Pipe industry production high quality, the demand of highorder accuracy schemes.
The content of the invention
In order to solve the defects of above-mentioned technology is present, the present invention provides a kind of processing method of special-shaped Varied section roll pass
And tool.
Technical scheme is used by the present invention realizes above-mentioned technique effect：
A kind of processing method of special-shaped Varied section roll pass, including step：
A. process is rough milled：While Ball end milling, special-shaped Varied section roll ceaselessly revolves around rotary shaft
Turn, the track of rose cutter is a continuous curve, and allowance is reserved after rough milling pass；
B. quenching process：Carry out Quenching Treatment is carried out to the workpiece rough milled；
C. finish-milling process：Carried out with rose cutter along the axial cross section circular arc of the special-shaped roll pass Jing Guo Quenching Treatment
Feed.
Further, in the processing method of above-mentioned special-shaped Varied section roll pass, the feed path direction of process is rough milled
Radius of curvature ρ2=r, the radius of curvature ρ in vertical feed path direction1=R, wherein, r is pass radial section radius of curvature, R
For pass axial cross section radius of curvature.
Further, in the processing method of above-mentioned special-shaped Varied section roll pass, the feed path direction of finish-milling process
Radius of curvature ρ2=R, the radius of curvature ρ in vertical feed path direction1=r, wherein, r is pass radial section radius of curvature, R
For pass axial cross section radius of curvature.
Further, in the processing method of above-mentioned special-shaped Varied section roll pass, rough mill in process, vertical feed path
The radius of curvature ρ in direction1Span be 8mm<|ρ1|<15mm, the maximum feed line-spacing g of vertical feed span are
1.5mm<g<1.8mm；Rough mill the radius of curvature ρ in the feed path direction of process2Span be 110mm<ρ2<119mm, its
Maximum cutting step length s span is 2.1mm<s<2.2mm.
Further, in the processing method of above-mentioned special-shaped Varied section roll pass, in finish-milling process, vertical feed path
The radius of curvature ρ in direction1Span be 110mm<ρ1<119mm, the maximum feed line-spacing g of vertical feed span are
1.23mm<g<1.24mm；The radius of curvature 8mm in the feed path direction of finish-milling process<|ρ2|<15mm, its maximum cutting step length s
Span be 0.58mm<s<0.7mm.
Further, in the processing method of above-mentioned special-shaped Varied section roll pass, in process is rough milled, axially cutting is deep
Spend ap=0.30~0.60mm, radial cutting depth ap=1~2mm, feed engagement fz=0.20~0.60mm/z, main shaft turn
Fast N=1000~3000r/min.
Further, in the processing method of above-mentioned special-shaped Varied section roll pass, in finish-milling process, axially cutting is deep
Spend ap=0.05~0.30mm, radial cutting depth ap=0.05~0.25mm, feed engagement fz=0.08~0.15mm/z,
Speed of mainshaft N=4000~6500r/min.
A kind of tool of processing method for above-mentioned special-shaped Varied section roll pass, the tool are one
Rose cutter and the special-shaped Varied section roll coordinated with the rose cutter, the Probe-radius R=4mm of the rose cutter, knife
Has angle γp=30 °, tooth number Zn=2.
Further, in above-mentioned tool, the rose cutter is the hard alloy bulb milling cutter of integral type,
The special-shaped Varied section roll that the special-shaped Varied section roll is GCr15 materials and hardness is 58~62HRC.
Further, in above-mentioned tool, the cylindrical roll surface of the special-shaped Varied section roll is provided with pass
Groove, side end face are provided with keyway.
Beneficial effects of the present invention are：The processing method of special-shaped Varied section roll pass proposed by the present invention passes through to feed
Path and the optimization of Milling Process parameter, the optimal feed path and milling for obtaining special-shaped Varied section roll pass Milling Process add
Work parameter so that the processing efficiency of special-shaped Varied section roll pass improves 20%, and the surface roughness R of pass curved surfacea
0.8 μm is reached, dimensioned precision has reached ± 0.08mm.
Brief description of the drawings
Fig. 1 is the structural representation of special-shaped Varied section roll of the present invention；
Fig. 2 is the radial section structure chart of special-shaped Varied section roll of the present invention；
Fig. 3 is the axial section structure chart of special-shaped Varied section roll of the present invention；
Fig. 4 is the structural representation of rose cutter of the present invention；
Fig. 5 is the feed path schematic diagram of the rough milling of the present invention；
Fig. 6 is the feed path schematic diagram of the finish-milling processing of the present invention.
Embodiment
For make to make the present invention it is further understand, referring to Figure of description and specific embodiment the present invention is made into
One step explanation：
As shown in Figure 5 and Figure 6, a kind of processing method of special-shaped Varied section roll pass, including step：
A. process is rough milled：While Ball end milling, special-shaped Varied section roll ceaselessly revolves around rotary shaft
Turn, the track of rose cutter is a continuous curve, reserves allowance after rough milling pass, the reserved of the allowance is anti-
Only deformed during the Quenching Treatment in subsequent step；
B. quenching process：Carry out Quenching Treatment is carried out to the workpiece rough milled；
C. finish-milling process：Carried out with rose cutter along the axial cross section circular arc of the special-shaped roll pass Jing Guo Quenching Treatment
Feed.
In step a, the radius of curvature ρ in the feed path direction of process is rough milled2=r, the song in vertical feed path direction
Rate radius ρ1=R, wherein, r is pass radial section radius of curvature, and R is pass axial cross section radius of curvature.So feed ρ2Most
Greatly, ρ1Minimum, higher processing efficiency can be obtained.In step c, the radius of curvature ρ in the feed path direction of finish-milling process2=
R, the radius of curvature ρ in vertical feed path direction1=r, wherein, r is pass radial section radius of curvature, and R is that pass is axially cut
Curvature radius.So feed ρ2Minimum, ρ1Maximum, higher machining accuracy can be obtained.
Specifically, rough milling process in the present invention, the radius of curvature ρ 1 in vertical feed path direction span is
8mm<|ρ1|<15mm, the maximum feed line-spacing g of vertical feed span is 1.5mm<g<1.8mm；Rough mill the feed of process
The radius of curvature ρ of path direction2Span be 110mm<ρ2<119mm, its maximum cutting step length s span are
2.1mm<s<2.2mm.Radius of curvature ρ in the vertical feed path direction of finish-milling process1Span be 110mm<ρ1<
119mm, the maximum feed line-spacing g of vertical feed span is 1.23mm<g<1.24mm；The feed path side of finish-milling process
To radius of curvature 8mm<|ρ2|<15mm, its maximum cutting step length s span are 0.58mm<s<0.7mm.In finish-milling work
During sequence, axial cross section circular arc of the rose cutter along special-shaped roll pass carries out feed, and feed path is simple, and feed walks
Long, line-spacing and Milling Force are also smaller, so mismachining tolerance is smaller, can obtain high-precision special-shaped roll pass.
Preferably, in process is rough milled, axial cutting depth ap=0.30~0.60mm, radial cutting depth ap=1~
2mm, feed engagement fz=0.20~0.60mm/z, speed of mainshaft N=1000~3000r/min.In finish-milling process, axially
Cutting depth ap=0.05~0.30mm, radial cutting depth ap=0.05~0.25mm, feed engagement fz=0.08~
0.15mm/z, speed of mainshaft N=4000~6500r/min.
The processing method of the special-shaped Varied section roll pass of the present invention passes through to the excellent of feed path and Milling Process parameter
Change, obtain the optimal feed path and Milling Process parameter of special-shaped Varied section roll pass Milling Process so that special-shaped Varied section
The processing efficiency of roll pass improves 20%, and the surface roughness R of pass curved surfacea0.8 μm is reached, dimensioned essence
Degree has reached ± 0.08mm.
As shown in Figures 1 to 4, the tool of a kind of processing method for above-mentioned special-shaped Varied section roll pass,
The tool is a rose cutter and the special-shaped Varied section roll coordinated with the rose cutter, and rose cutter is by milling section
4 and canned paragraph 5 form, the front end of milling section 4 is bulb 6, the radius R=4mm of the bulb 6, cutting-tool angle γp=30 °, the number of teeth
Zn=2.Rose cutter is the hard alloy bulb milling cutter of integral type, has the characteristics of hardness is high and wear-resisting.Special-shaped Varied section rolls
The special-shaped Varied section roll that roller is GCr15 materials and hardness is 58~62HRC, there is preferable wearability and higher intensity.
The cylindrical roll surface 3 of the special-shaped Varied section roll is provided with pass groove 2, and side end face is provided with keyway 1, during processing, the knife of rose cutter
Head coordinates with special-shaped Varied section roll, and carries out Milling Process to special-shaped Varied section roll pass.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
For personnel it should be appreciated that the present invention is not limited to the above embodiments, that described in above-described embodiment and specification is the present invention
Principle, various changes and modifications of the present invention are possible without departing from the spirit and scope of the present invention, these change and
Improvement is both fallen within the range of claimed invention, the protection domains of application claims by appended claims and its
Equivalent defines.
Claims (8)
1. a kind of processing method of special-shaped Varied section roll pass, it is characterised in that including step：
A. process is rough milled：While Ball end milling, special-shaped Varied section roll ceaselessly rotates around rotary shaft,
The track of rose cutter is a continuous curve, and allowance is reserved after rough milling pass；
B. quenching process：Quenching Treatment is carried out to the workpiece rough milled；
C. finish-milling process：Enter walking along the axial cross section circular arc of the special-shaped roll pass Jing Guo Quenching Treatment with rose cutter
Knife；
Wherein, the radius of curvature ρ in the feed path direction of process is rough milled2=r, the radius of curvature ρ in vertical feed path direction1=R,
R is pass radial section radius of curvature, and R is pass axial cross section radius of curvature；
Rough mill in process, the radius of curvature ρ in vertical feed path direction1Span be 8mm<|ρ1|<15mm, vertical feed
Maximum feed line-spacing g span be 1.5mm<g<1.8mm；Rough mill the radius of curvature ρ in the feed path direction of process2's
Span is 110mm<ρ2<119mm, its maximum cutting step length s span are 2.1mm<s<2.2mm.
2. the processing method of special-shaped Varied section roll pass according to claim 1, it is characterised in that finish-milling process is walked
The radius of curvature ρ of knife path direction2=R, the radius of curvature in vertical feed path direction
ρ1=r, wherein, r is pass radial section radius of curvature, and R is pass axial cross section radius of curvature.
3. the processing method of special-shaped Varied section roll pass according to claim 2, it is characterised in that in finish-milling process,
The radius of curvature ρ in vertical feed path direction1Span be 110mm<ρ1<119mm, the maximum feed line-spacing g of vertical feed
Span be 1.23mm<g<1.24mm；The radius of curvature 8mm in the feed path direction of finish-milling process<|ρ2|<15mm, its
Maximum cutting step length s span is 0.58mm<s<0.7mm.
4. the processing method of special-shaped Varied section roll pass according to claim 1, it is characterised in that rough milling process
In, axial cutting depth ap=0.30 ~ 0.60mm, radial cutting depth ap=1 ~ 2mm, feed engagement fz=0.20~0.60mm/z、
Speed of mainshaft N=1000 ~ 3000r/min.
5. the processing method of special-shaped Varied section roll pass according to claim 1, it is characterised in that in finish-milling process
In, axial cutting depth ap=0.05 ~ 0.30mm, radial cutting depth ap=0.05 ~ 0.25mm, feed engagement fz=0.08~
0.15mm/z, speed of mainshaft N=4000 ~ 6500r/min.
6. a kind of tool of processing method for any one of claim 1 to the 5 special-shaped Varied section roll pass,
Characterized in that, the tool is a rose cutter and the special-shaped Varied section roll coordinated with the rose cutter, it is described
Probe-radius R=4mm of rose cutter, cutting-tool angle γp=30 °, tooth number Zn=2。
7. tool according to claim 6, it is characterised in that the rose cutter is the hard alloy of integral type
Rose cutter, the special-shaped Varied section roll that the special-shaped Varied section roll is GCr15 materials and hardness is 58~62HRC.
8. the tool according to claim 6 or 7, it is characterised in that the outer round roller of the special-shaped Varied section roll
Face is provided with pass groove, and side end face is provided with keyway.
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| CN201610008228.4A CN105499678B (en) | 2016-01-04 | 2016-01-04 | A kind of processing method and tool of special-shaped Varied section roll pass |
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| CN201610008228.4A CN105499678B (en) | 2016-01-04 | 2016-01-04 | A kind of processing method and tool of special-shaped Varied section roll pass |
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| JPH10216825A (en) * | 1997-02-06 | 1998-08-18 | Nkk Corp | Manufacturing method of T-section steel |
| CN201217604Y (en) * | 2008-05-23 | 2009-04-08 | 宝山钢铁股份有限公司 | Machine-tooled hanging tool for ring caliber member for blast furnace skip hoist |
| CN201807772U (en) * | 2010-05-07 | 2011-04-27 | 邯郸市永固冶金备件有限公司 | A pattern milling device for a pattern plate roll |
| CN102343455A (en) * | 2011-09-23 | 2012-02-08 | 四川省广汉三阳机械制造有限公司 | Method for finish-machining periodic mill roll in numerical control (NC) turning and milling center |
| CN203918545U (en) * | 2014-04-23 | 2014-11-05 | 浙江纺织服装职业技术学院 | A kind of for the rough machined new exclusive fixture of roll pass |
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Denomination of invention: Machining method of special-shaped variable-section roll pass and tool used for machining Effective date of registration: 20180313 Granted publication date: 20180130 Pledgee: Guangdong Nanhai Rural Commercial Bank branch branch of Limited by Share Ltd Pledgor: Guangdong Guanbang Technology Co.,Ltd. Registration number: 2018440000050 |
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