CN107824847A - Oval hole forming method - Google Patents
Oval hole forming method Download PDFInfo
- Publication number
- CN107824847A CN107824847A CN201711124917.2A CN201711124917A CN107824847A CN 107824847 A CN107824847 A CN 107824847A CN 201711124917 A CN201711124917 A CN 201711124917A CN 107824847 A CN107824847 A CN 107824847A
- Authority
- CN
- China
- Prior art keywords
- workpiece
- boring bar
- diameter
- oval
- milling machine
- 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.)
- Withdrawn
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Classifications
-
- 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
- B23C3/02—Milling surfaces of revolution
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2220/00—Details of milling processes
- B23C2220/24—Production of elliptical holes
Abstract
The oval hole forming method of the present invention is related to field of machining, and in particular to oval hole forming method, comprises the following steps：A boring bar is processed, the taper of boring bar is consistent with milling machine spindle taper hole taper, and the rotating diameter of milling head should be equal to required processing transverse diameter；Boring bar is turned over into certain angle so that boring bar forms an angle with work centre line；When installing workpiece, the oval axis of required processing should be perpendicular to milling machine table face, and the short-axis direction of elliptical aperture is parallel with the direction of longitudinal workbench；Horizontal work level is adjusted, makes the axis of milling machine spindle line and workpiece elliptical aperture in the same plane；Milling Process is carried out to workpiece, the axial feed of workpiece can be carried out using self-powered platform in process.Process of the present invention is simple, ensures workpiece processing quality and dimensional accuracy, improves production efficiency, reduces production cost, be adapted to small lot or single-piece production.
Description
Technical field
The present invention relates to field of machining, and in particular to oval hole forming method.
Background technology
Elliptical aperture part is although rare, but elliptical aperture part is but in machinery industry using most important, ellipse on workpiece
But the processing method of circular hole is a lot, is processed on lathe, boring machine, milling machine, numer centre, realizes, but be utilized in lathe
To be processed with boring machine, be required to make Special clamping frock, waste time and energy, processing efficiency is not high, and adds production cost, and
It cannot be guaranteed that the machining accuracy of workpiece, is processed using Digit Control Machine Tool, although can ensure the machining accuracy of workpiece, numerical control machine
Need to use special tooling on bed, and need to program, although high in machining efficiency, be the increase in production cost, on Digit Control Machine Tool
It is adapted to batch production, the processing for small lot or single-piece, Digit Control Machine Tool is not then preferred.
In order to solve the above problems, a kind of process of present invention offer is simple, ensures workpiece processing quality and size essence
Degree, improve production efficiency, reduce production cost, be adapted to small lot or the oval hole forming method of single-piece production.
The oval hole forming method of the present invention, comprises the following steps：
The first step, a boring bar is processed, the taper of boring bar is consistent with milling machine spindle taper hole taper, and the rotating diameter of milling head should be equal to
Required processing transverse diameter；
Second step, boring bar is turned over into certain angle so that boring bar forms an angle with work centre line, and the angle is a, a value
It can be tried to achieve according to formula：, whereinFor ellipse short shaft diameter,For transverse diameter；
3rd step, clamping workpiece, the clamping workpiece on milling machine, when installing workpiece, the oval axis of required processing should be perpendicular to
Milling machine table face, the short-axis direction of elliptical aperture are parallel with the direction of longitudinal workbench；
4th step, after workpiece installs, by the method to center, horizontal work level is adjusted, makes milling machine spindle line and workpiece
The axis of elliptical aperture is in the same plane；
5th step, Milling Process is carried out to workpiece, the axial feed of workpiece can be carried out using self-powered platform in process.
Preferably, the diameter below equation of boring bar is tried to achieve：, wherein, d is boring
Shank diameter, b are thickness of workpiece.
Process of the present invention is simple, ensures workpiece processing quality and dimensional accuracy, improves production efficiency, reduction is produced into
This, be adapted to small lot or single-piece production.
Embodiment
The oval hole forming method of the present invention, comprises the following steps：
The first step, a boring bar is processed, the taper of boring bar is consistent with milling machine spindle taper hole taper, and the rotating diameter of milling head should be equal to
Required processing transverse diameter；
Second step, boring bar is turned over into certain angle so that boring bar forms an angle with work centre line, and the angle is a, a value
It can be tried to achieve according to formula：, whereinFor ellipse short shaft diameter,For transverse diameter；
3rd step, clamping workpiece, the clamping workpiece on milling machine, when installing workpiece, the oval axis of required processing should be perpendicular to
Milling machine table face, the short-axis direction of elliptical aperture are parallel with the direction of longitudinal workbench；
4th step, after workpiece installs, by the method to center, horizontal work level is adjusted, makes milling machine spindle line and workpiece
The axis of elliptical aperture is in the same plane；
5th step, Milling Process is carried out to workpiece, the axial feed of workpiece can be carried out using self-powered platform in process.
The diameter below equation of boring bar is tried to achieve：, wherein, d is boring bar diameter,
B is thickness of workpiece.
One cylindrical workpiece is cut on the arbitrary section perpendicular to its center line, is all a circle, if cut
Direction and workpiece centerline dip it is angled, then section is exactly an ellipse, cuts the center line in direction and hole
Angle is smaller, and the ratio of oval major axis and short axle is bigger, and institute's method described above is feasible.
Claims (2)
1. a kind of oval hole forming method, it is characterised in that comprise the following steps：
The first step, a boring bar is processed, the taper of boring bar is consistent with milling machine spindle taper hole taper, and the rotating diameter of milling head should be equal to
Required processing transverse diameter；
Second step, boring bar is turned over into certain angle so that boring bar forms an angle with work centre line, and the angle is a, a value
It can be tried to achieve according to formula：, whereinFor ellipse short shaft diameter,For transverse diameter；
3rd step, clamping workpiece, when installing workpiece, the oval axis of required processing should be oval perpendicular to milling machine table face
The short-axis direction in hole is parallel with the direction of longitudinal workbench；
4th step, after workpiece installs, by the method to center, horizontal work level is adjusted, makes milling machine spindle line and workpiece
The axis of elliptical aperture is in the same plane；
5th step, Milling Process is carried out to workpiece, the axial feed of workpiece can be carried out using self-powered platform in process.
2. oval hole forming method as claimed in claim 1, it is characterised in that the diameter below equation of the boring bar is tried to achieve：, wherein, d is boring bar diameter, and b is thickness of workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711124917.2A CN107824847A (en) | 2017-11-14 | 2017-11-14 | Oval hole forming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711124917.2A CN107824847A (en) | 2017-11-14 | 2017-11-14 | Oval hole forming method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107824847A true CN107824847A (en) | 2018-03-23 |
Family
ID=61655403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711124917.2A Withdrawn CN107824847A (en) | 2017-11-14 | 2017-11-14 | Oval hole forming method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107824847A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112548171A (en) * | 2020-11-23 | 2021-03-26 | 中船澄西船舶修造有限公司 | Processing device for oval waist hole |
-
2017
- 2017-11-14 CN CN201711124917.2A patent/CN107824847A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112548171A (en) * | 2020-11-23 | 2021-03-26 | 中船澄西船舶修造有限公司 | Processing device for oval waist hole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180323 |