CN113385720A - Regular pentagonal spiral hole machining method - Google Patents
Regular pentagonal spiral hole machining method Download PDFInfo
- Publication number
- CN113385720A CN113385720A CN202110730018.7A CN202110730018A CN113385720A CN 113385720 A CN113385720 A CN 113385720A CN 202110730018 A CN202110730018 A CN 202110730018A CN 113385720 A CN113385720 A CN 113385720A
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- China
- Prior art keywords
- workpiece
- regular pentagonal
- spiral hole
- cutter
- main shaft
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- 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
- B23C3/26—Making square or polygonal holes in workpieces, e.g. key holes in tools
Abstract
The invention discloses a method for processing a regular pentagonal spiral hole, which does not need a special cutter and has wide application range. The workpiece is provided with a regular pentagonal inner hole, a cutter of the processing equipment is a four-edge dovetail milling cutter, and a spacing distance r2 is arranged between the axis of the regular pentagonal inner hole of the workpiece and the axis of the four-edge dovetail milling cutter; the radius of an inscribed circle of an axial section curve of a regular pentagonal spiral hole to be machined is r, the machining radius of a four-edge dovetail milling cutter is r1, the rotating speed of a cutter main shaft is s, the rotating speed of a workpiece main shaft is s1, the rotating directions of the cutter main shaft and the workpiece main shaft are the same, and the axial feeding speed of the cutter main shaft is f; r1 ═ 16 ÷ 15 × r; r2 ═ r ÷ 15; s1 ═ s × 4 ÷ 5-s ÷ 5 ÷ h × f.
Description
Technical Field
The invention relates to the technical field of machining, in particular to a method for machining a regular pentagonal spiral hole.
Background
The existing regular pentagonal spiral hole machining method mostly adopts an electric spark machining method, and has low machining efficiency and poor surface roughness.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a regular pentagonal spiral hole machining method which does not need a special cutter and has a wide application range.
The purpose of the invention is realized as follows:
a regular pentagonal spiral hole machining method comprises the following steps:
s1, preparing processing equipment and a workpiece, wherein the workpiece generally has an inner hole or does not have the inner hole if necessary, when the inner hole exists, the axis of the inner hole is superposed with the axis of a regular pentagonal spiral hole to be processed, the diameter of the inner hole is (slightly) smaller than the diameter of an inscribed circle of the regular pentagonal spiral hole to be processed, a cutter of the processing equipment is a four-edge dovetail groove milling cutter, and a workpiece spindle of the processing equipment has a rotating function and is fed linearly;
s2, clamping the workpiece on a workpiece spindle, wherein a spacing distance r2 is arranged between the axis of the inner hole of the workpiece and the axis of the four-blade dovetail milling cutter;
s3, processing spiral holes
The radius of an inscribed circle of an axial section curve of the regular pentagonal spiral hole obtained by machining is r, the machining radius of a four-edge dovetail milling cutter is r1, the rotating speed of a cutter main shaft is s, the rotating speed of a workpiece main shaft is s1, the rotating directions of the cutter main shaft and the workpiece main shaft are the same, and the axial feeding speed of the cutter main shaft is f;
the relation between the processing radius r1 of the four-blade dovetail groove milling cutter and the radius r of the inscribed circle of the axial section curve of the processed regular pentagonal spiral hole is as follows:
r1＝16÷15×r
the relationship between the distance r2 between the axis of the four-blade dovetail milling cutter and the axis of the processed regular pentagonal spiral hole and the radius r of the inscribed circle of the axial section curve of the processed regular pentagonal spiral hole is as follows:
r2＝r÷15
the relation between the rotating speed s1 of the workpiece spindle and the rotating speed s of the tool spindle, the lead h of the processed spiral hole and the axial feed speed f of the tool spindle is as follows:
s1＝s×4÷5-s÷5÷h×f
preferably, the machining apparatus is a modified lathe.
Preferably, the processing equipment adopts a swing head type processing center.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
the invention uses the double-spindle longitudinal cutting machine tool or the oscillating machining center and uses the four-blade dovetail milling cutter to machine the regular pentagonal spiral hole, thereby improving the machining efficiency and the surface roughness.
Drawings
FIG. 1 is a schematic process diagram of the present invention;
fig. 2 is a schematic size diagram of the present invention.
Reference numerals
In the attached drawings, 1 is a processed part, 2 is a four-edge dovetail milling cutter, 3 is the rotation direction of a workpiece spindle, 4 is the rotation direction of a cutter spindle, 5 is the feed motion direction of a cutter, and 2a is the contour of a processed inner regular polygon.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, a regular pentagonal spiral hole processing method is to use a four-edge dovetail milling cutter to process a regular pentagonal spiral hole, the radius of an inscribed circle of an axial section curve of the processed regular pentagonal spiral hole is r, the processing radius of the four-edge dovetail milling cutter is r1, the rotating speed of a cutter spindle is s, the rotating speed of a workpiece spindle is s1, the rotating directions of the cutter spindle and the workpiece spindle are the same, and the axial feeding speed of the cutter spindle is f.
The relation between the processing radius r1 of the four-blade dovetail groove milling cutter and the radius r of the inscribed circle of the axial section curve of the processed regular pentagonal spiral hole is as follows:
r1＝16÷15×r
the relationship between the distance r2 between the axis of the four-blade dovetail milling cutter and the axis of the processed regular pentagonal spiral hole and the radius r of the inscribed circle of the axial section curve of the processed regular pentagonal spiral hole is as follows:
r2＝r÷15
the relation between the rotating speed s1 of the workpiece spindle and the rotating speed s of the tool spindle, the lead h of the processed spiral hole and the axial feed speed f of the tool spindle is as follows:
s1＝s×4÷5-s÷5÷h×f。
the formulas are obtained by calculation according to the self geometric relationship of the regular pentagonal spiral hole.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (3)
1. A regular pentagonal spiral hole machining method is characterized by comprising the following steps:
s1, preparing a machining device and a workpiece, wherein a cutter of the machining device is a four-edge dovetail milling cutter, and a workpiece spindle of the machining device has a rotating function;
s2, clamping the workpiece on a workpiece spindle, wherein a spacing distance r2 is arranged between the axis of the inner hole of the workpiece and the axis of the four-blade dovetail milling cutter;
s3, processing spiral holes
The radius of an inscribed circle of an axial section curve of a regular pentagonal spiral hole to be machined is r, the machining radius of a four-edge dovetail milling cutter is r1, the rotating speed of a cutter main shaft is s, the rotating speed of a workpiece main shaft is s1, the rotating directions of the cutter main shaft and the workpiece main shaft are the same, and the axial feeding speed of the cutter main shaft is f;
the relation between the processing radius r1 of the four-blade dovetail groove milling cutter and the radius r of the inscribed circle of the axial section curve of the processed regular pentagonal spiral hole is as follows:
r1＝16÷15×r
the relationship between the distance r2 between the axis of the four-blade dovetail milling cutter and the axis of the processed regular pentagonal spiral hole and the radius r of the inscribed circle of the axial section curve of the processed regular pentagonal spiral hole is as follows:
r2＝r÷15
the relation between the rotating speed s1 of the workpiece spindle and the rotating speed s of the tool spindle, the lead h of the processed spiral hole and the axial feed speed f of the tool spindle is as follows:
s1＝s×4÷5-s÷5÷h×f。
2. a regular pentagonal spiral hole machining method as defined in claim 1, wherein: the processing equipment is a modified lathe.
3. A regular pentagonal spiral hole machining method as defined in claim 1, wherein: the processing equipment adopts a head-swinging type processing center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110730018.7A CN113385720A (en) | 2021-06-29 | 2021-06-29 | Regular pentagonal spiral hole machining method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110730018.7A CN113385720A (en) | 2021-06-29 | 2021-06-29 | Regular pentagonal spiral hole machining method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113385720A true CN113385720A (en) | 2021-09-14 |
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ID=77624467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110730018.7A Withdrawn CN113385720A (en) | 2021-06-29 | 2021-06-29 | Regular pentagonal spiral hole machining method |
Country Status (1)
| Country | Link |
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| CN (1) | CN113385720A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114473630A (en) * | 2022-03-21 | 2022-05-13 | 西南石油大学 | Regular polygon square hole surface forming movement method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2078205U (en) * | 1990-01-19 | 1991-06-05 | 鞍山铁塔制造总厂 | Milling head for polygonal blind hole |
| GB9213686D0 (en) * | 1992-06-27 | 1992-08-12 | Huang Kuang Wu | Drill and lock assembly |
| CN103567476A (en) * | 2013-10-30 | 2014-02-12 | 首都航天机械公司 | Fast processing device and method for polygonal inner hole |
| CN105081703A (en) * | 2015-09-15 | 2015-11-25 | 湖南南方宇航高精传动有限公司 | Machining method of inner triangle arc hole shafts |
| CN108994357A (en) * | 2018-08-08 | 2018-12-14 | 苏州顶裕节能设备有限公司 | A kind of CFRP profiled holes cutting apparatus and processing method |
-
2021
- 2021-06-29 CN CN202110730018.7A patent/CN113385720A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2078205U (en) * | 1990-01-19 | 1991-06-05 | 鞍山铁塔制造总厂 | Milling head for polygonal blind hole |
| GB9213686D0 (en) * | 1992-06-27 | 1992-08-12 | Huang Kuang Wu | Drill and lock assembly |
| CN103567476A (en) * | 2013-10-30 | 2014-02-12 | 首都航天机械公司 | Fast processing device and method for polygonal inner hole |
| CN105081703A (en) * | 2015-09-15 | 2015-11-25 | 湖南南方宇航高精传动有限公司 | Machining method of inner triangle arc hole shafts |
| CN108994357A (en) * | 2018-08-08 | 2018-12-14 | 苏州顶裕节能设备有限公司 | A kind of CFRP profiled holes cutting apparatus and processing method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114473630A (en) * | 2022-03-21 | 2022-05-13 | 西南石油大学 | Regular polygon square hole surface forming movement method |
| CN114473630B (en) * | 2022-03-21 | 2023-05-16 | 西南石油大学 | Regular polygon square hole surface forming movement method |
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Application publication date: 20210914 |
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| WW01 | Invention patent application withdrawn after publication |