CN104096887B - A kind of Milling Process assembly - Google Patents
A kind of Milling Process assembly Download PDFInfo
- Publication number
- CN104096887B CN104096887B CN201410313924.7A CN201410313924A CN104096887B CN 104096887 B CN104096887 B CN 104096887B CN 201410313924 A CN201410313924 A CN 201410313924A CN 104096887 B CN104096887 B CN 104096887B
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- China
- Prior art keywords
- milling
- milling cutter
- feeding amount
- profiling
- profile
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- Expired - Fee Related
Links
- 238000003801 milling Methods 0.000 title claims abstract description 71
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000003754 machining Methods 0.000 claims description 33
- 241001631030 Explorator Species 0.000 description 5
- 238000005452 bending Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- Milling Processes (AREA)
Abstract
A kind of Milling Process assembly, for part fore-and-aft plane is milled into longitudinal curved surface, Milling Process assembly comprises master form mechanism, milling cutter (7), the longitudinal running gear of milling cutter (71) and Der Laengslenker (72), the longitudinal running gear of milling cutter (71) is for driving milling cutter along described Der Laengslenker (72) lengthwise movement, and the longitudinal running gear of described milling cutter (71) also allows milling cutter to do horizontal relative motion with respect to the longitudinal running gear of milling cutter (71) and Der Laengslenker (72); Described master form mechanism is provided with and processes first profiling profile (11), again process profiling profile (12) and pattern profile coordinates walking mechanism; pattern profile coordinates walking mechanism to be used for being connected between cutter and master form mechanism, and comprises that road wheel is to coordinate with the described profile of master form mechanism.
Description
Technical Field
The invention relates to the field of cutting of workpieces, in particular to a profiling mechanism.
Background
The copying machining is based on a pre-made explorator, and during machining, under the action of certain pressure, a contact is in close contact with the working surface of the explorator and moves along the surface of the explorator, and a cutter is synchronously copied through a copying mechanism, so that a part with the same profile as the explorator is machined on a part blank. Profiling is one of the important methods for machining cavities or profiles of various parts, particularly of mould parts. The commonly used profiling machining includes profiling milling, profiling planing, profiling grinding and the like.
But profiling has disadvantages. The shape of the workpiece to be machined is often dependent on the shape of its copying template. For the workpiece with larger bending degree, the change of the eating amount is larger, the curvature of the shape is larger, and the required processing quality is difficult to achieve only depending on the profiling shape of the profiling.
Disclosure of Invention
The invention aims to provide a milling technical scheme for contour machining, which can meet the shape machining requirements of workpieces with large curvature and large bending change.
A milling assembly is used for milling a longitudinal plane of a part into a longitudinal curved surface, and comprises a profiling mechanism, a milling cutter longitudinal walking device and a longitudinal guide rod, wherein the milling cutter longitudinal walking device is used for driving the milling cutter to move longitudinally along the longitudinal guide rod, and the milling cutter longitudinal walking device also allows the milling cutter to move transversely relative to the milling cutter longitudinal walking device and the longitudinal guide rod; the profiling mechanism is provided with a first-time machining profiling profile, a second-time machining profiling profile and a profiling profile matching travelling mechanism, the profiling profile matching travelling mechanism is used for being connected between the cutter and the profiling mechanism and comprises travelling wheels matched with the profile of the profiling mechanism, the first-time machining profiling profile is used for controlling a first transverse feeding amount of the milling cutter during first-time machining, the second-time machining profiling profile is used for controlling the residual transverse feeding amount of the milling cutter during second-time machining, the sum of the first transverse feeding amount and the residual transverse feeding amount is a total transverse feeding amount, and the total transverse feeding amount can represent the difference between the initial form and the final form of a workpiece;
the control of the transverse feed amount of the first-time processing profile and the second-time processing profile in the milling process of the shaft parts meets the following formula:
Smax=Sq·(1+E%)
Smin=Sq·(1-E%)
wherein,
zmax represents the maximum total infeed during milling of the shaft part;
zmin represents the minimum total infeed during milling of the shaft parts;
smax represents the residual transverse feeding amount at the position where the total transverse feeding amount is maximum in the process of milling the shaft parts;
smin represents the residual transverse feeding amount at the position where the total transverse feeding amount is minimum in the process of milling the shaft parts;
sq represents the expected transverse feeding amount of the milling cutter during the second pass of machining;
e% represents the percentage of deviation in floating that the milling cutter can accept under the reference of the desired amount of infeed Sq when processing the second pass;
s represents the residual infeed at the general location during milling of the shaft part.
According to the scheme, firstly, the outline curve of the milling workpiece is roughly processed by utilizing the first-pass processing; for the processing of a large-curvature workpiece with a large bending degree, compared with the workpiece curved surface profile parallel formed in two times of processing (which will be described in detail later), the scheme of the invention fully utilizes the tolerance deviation +/-E% of the expected feeding amount in the second time of processing, and utilizes + E% in the concave workpiece position requiring a large cutting amount, namely, after the primary processing, the second time of processing bears more cutting amount; and-E% is used in the convex portion in consideration of cutting balance and necessary cutting amount to form surface accuracy due to the small total cutting amount. At other positions, obtaining the residual transverse feeding amount by utilizing a linear relation; therefore, the two times of transverse feeding amount is reasonably distributed by utilizing the profile shapes of the two explorators; the excessive cutting amount formed by the second pass machining is avoided, and meanwhile, the situation that a large amount of cutting is born in the first pass at the position with larger total cutting amount is also avoided. Therefore, the stress condition of the cutter is improved, the service life of the cutter is prolonged, and meanwhile, the condition of inconsistent processing amount in the curve profile is balanced to the greatest extent, and the surface quality of the workpiece is improved.
Drawings
FIG. 1 is a schematic diagram illustrating the relationship between the workpiece profiles corresponding to two passes of the present invention during the machining of the workpiece;
FIG. 2 is a schematic view of the relationship of two profiles of the present invention in infeed;
fig. 3 is a diagram showing the matching relationship between the copying mechanism of the milling assembly and the traveling mechanism of the tool according to the present invention.
Detailed Description
The present invention will be described in detail with reference to FIGS. 1 to 3.
A milling assembly is used for milling a longitudinal plane of a part into a longitudinal curved surface, and comprises a profiling mechanism, a milling cutter 7, a milling cutter longitudinal walking device 71 and a longitudinal guide rod 72, wherein the milling cutter longitudinal walking device 71 is used for driving the milling cutter to move longitudinally along the longitudinal guide rod 72, and the milling cutter longitudinal walking device 71 also allows the milling cutter to move transversely relative to the milling cutter longitudinal walking device 71 and the longitudinal guide rod 72; the profiling mechanism is provided with a first-time machining profiling profile 11, a second-time machining profiling profile 12 and a profiling profile matching travelling mechanism, the profiling profile matching travelling mechanism is used for being connected between a cutter and the profiling mechanism and comprises travelling wheels matched with the profile of the profiling mechanism, the first-time machining profiling profile 11 is used for controlling the first transverse feeding amount of the milling cutter during first-time machining, the second-time machining profiling profile 12 is used for controlling the residual transverse feeding amount of the milling cutter during second-time machining, the sum of the first transverse feeding amount and the residual transverse feeding amount is the total transverse feeding amount, and the total transverse feeding amount can represent the difference between the initial form and the final form of a workpiece;
the control of the first-time machining profile 11 and the second-time machining profile 12 on the transverse feeding amount in the shaft part milling process meets the following formula:
Smax=Sq·(1+E%)
Smin=Sq·(1-E%)
wherein,
zmax represents the maximum total infeed during milling of the shaft part;
zmin represents the minimum total infeed during milling of the shaft parts;
smax represents the residual transverse feeding amount at the position where the total transverse feeding amount is maximum in the process of milling the shaft parts;
smin represents the residual transverse feeding amount at the position where the total transverse feeding amount is minimum in the process of milling the shaft parts;
sq represents the expected transverse feeding amount of the milling cutter during the second pass of machining;
e% represents the percentage of deviation in floating that the milling cutter can accept under the reference of the desired amount of infeed Sq when processing the second pass;
s represents the residual infeed at the general location during milling of the shaft part.
Claims (1)
1. A milling assembly is used for milling a longitudinal plane of a part into a longitudinal curved surface, and comprises a profiling mechanism, a milling cutter (7), a milling cutter longitudinal walking device (71) and a longitudinal guide rod (72), wherein the milling cutter longitudinal walking device (71) is used for driving the milling cutter to move longitudinally along the longitudinal guide rod (72), and the milling cutter longitudinal walking device (71) also allows the milling cutter to move transversely relative to the milling cutter longitudinal walking device (71) and the longitudinal guide rod (72); the profiling mechanism is provided with a first-time machining profiling profile (11), a second-time machining profiling profile (12) and a profiling profile matching travelling mechanism, the profiling profile matching travelling mechanism is used for being connected between a cutter and the profiling mechanism and comprises travelling wheels matched with the profile of the profiling mechanism, the first-time machining profiling profile (11) is used for controlling a first transverse feeding amount of the milling cutter during first-time machining, the second-time machining profiling profile (12) is used for controlling the residual transverse feeding amount of the milling cutter during second-time machining, the sum of the first transverse feeding amount and the residual transverse feeding amount is a total transverse feeding amount, and the total transverse feeding amount can represent the difference between the initial form and the final form of a workpiece;
the first-time machining profile (11) and the second-time machining profile (12) control the transverse feed amount in the shaft part milling process to meet the following formula:
Smax=Sq·(1+E%)
Smin=Sq·(1-E%)
wherein,
zmax represents the maximum total infeed during milling of the shaft part;
zmin represents the minimum total infeed during milling of the shaft parts;
smax represents the residual transverse feeding amount at the position where the total transverse feeding amount is maximum in the process of milling the shaft parts;
smin represents the residual transverse feeding amount at the position where the total transverse feeding amount is minimum in the process of milling the shaft parts;
sq represents the expected transverse feeding amount of the milling cutter during the second pass of machining;
e% represents the percentage of deviation in floating that the milling cutter can accept under the reference of the desired amount of infeed Sq when processing the second pass;
s represents the residual infeed at the general location during milling of the shaft part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410313924.7A CN104096887B (en) | 2014-07-03 | 2014-07-03 | A kind of Milling Process assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410313924.7A CN104096887B (en) | 2014-07-03 | 2014-07-03 | A kind of Milling Process assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104096887A CN104096887A (en) | 2014-10-15 |
| CN104096887B true CN104096887B (en) | 2016-05-11 |
Family
ID=51665646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410313924.7A Expired - Fee Related CN104096887B (en) | 2014-07-03 | 2014-07-03 | A kind of Milling Process assembly |
Country Status (1)
| Country | Link |
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| CN (1) | CN104096887B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6099787B1 (en) * | 2016-03-24 | 2017-03-22 | 株式会社牧野フライス製作所 | Cutting method and machine tool |
| CN106363246B (en) * | 2016-09-22 | 2019-06-04 | 青岛海信移动通信技术股份有限公司 | Deburring equipment |
| CN111940802B (en) * | 2020-08-17 | 2022-10-18 | 沈阳飞机工业（集团）有限公司 | Milling tool for margin of aluminum alloy skin of airplane |
| CN113319354B (en) * | 2021-08-03 | 2021-11-09 | 常州赫尚赫机械有限公司 | High-precision equipment for processing pin shaft |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2001446A1 (en) * | 1970-01-07 | 1971-07-15 | Michael Freund | Touch milling device |
| US3922950A (en) * | 1974-03-01 | 1975-12-02 | James E Walter | Reversible pattern-tracing control for a duplicating milling machine |
| DE2556965C3 (en) * | 1975-12-18 | 1979-06-21 | Karl Haerlin & Co, 7530 Pforzheim | Post-form milling device |
| US5117716A (en) * | 1988-12-29 | 1992-06-02 | Shoda Robert L | Dual template assembly for a tracer lathe |
| CN2616338Y (en) * | 2003-04-11 | 2004-05-19 | 重庆工学院 | Follow-up control device for profile tracer processing or profiling measuring instrument |
| JP4216211B2 (en) * | 2004-03-10 | 2009-01-28 | ファナック株式会社 | Processing apparatus and processing method |
| CN201127997Y (en) * | 2007-11-20 | 2008-10-08 | 扬动股份有限公司 | Profiling vehicle spherical surface device |
| CN201950218U (en) * | 2011-01-30 | 2011-08-31 | 王泉国 | Device for turning special-shaped surface of workpiece |
| CN103447554A (en) * | 2013-09-03 | 2013-12-18 | 朱亚玲 | Curved surface turning device |
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2014
- 2014-07-03 CN CN201410313924.7A patent/CN104096887B/en not_active Expired - Fee Related
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| CN104096887A (en) | 2014-10-15 |
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Address after: 310008 Xiasha Higher Education Zone, Zhejiang City, Hangzhou Province, School of mechanical engineering, Hangzhou Dianzi University, grade 011 Applicant after: Zhu Hui Address before: Jinjiang Anhai Town, Fujian province Quanzhou City Road 362261 success No. 1 room 324 Applicant before: Zhu Hui |
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Effective date of registration: 20160412 Address after: Longwan District of Wenzhou City, Zhejiang province 325025 Tianhe Street Yingchun Road No. 85-87 Applicant after: Tao Ruyi Address before: 310008 Xiasha Higher Education Zone, Zhejiang City, Hangzhou Province, School of mechanical engineering, Hangzhou Dianzi University, grade 011 Applicant before: Zhu Hui |
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Inventor after: Jing Haijun Inventor before: Zhu Hui |
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Effective date of registration: 20170505 Address after: 519000 Guangdong province Zhuhai Nanping Science and Technology Industrial Park Road No. 12, building a screen layer Patentee after: Zhuhai City Hui Jing Mold Technology Co. Ltd Address before: Longwan District of Wenzhou City, Zhejiang province 325025 Tianhe Street Yingchun Road No. 85-87 Patentee before: Tao Ruyi |
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