CN113385706A - Method for machining regular polygon inner hole - Google Patents
Method for machining regular polygon inner hole Download PDFInfo
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- CN113385706A CN113385706A CN202110730028.0A CN202110730028A CN113385706A CN 113385706 A CN113385706 A CN 113385706A CN 202110730028 A CN202110730028 A CN 202110730028A CN 113385706 A CN113385706 A CN 113385706A
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- regular polygon
- inner hole
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- cutter
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B35/00—Methods for boring or drilling, or for working essentially requiring the use of boring or drilling machines; Use of auxiliary equipment in connection with such methods
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- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The invention discloses a method for processing a regular polygon inner hole, which does not need a special machine tool and a special cutter and has wide application range. The workpiece to be processed is provided with a regular polygon inner hole, the cutter of the processing equipment is a single-edge boring cutter, and a spacing distance r2 is arranged between the axial lead of the regular polygon inner hole of the workpiece and the axial lead of the single-edge boring cutter; the radius r of an inscribed circle of the regular polygon to be processed and the processing radius of the single-edge boring cutter are r1, the rotating speed of the tool spindle is s, the number of sides of the regular polygon is n, the rotating direction of the tool spindle is opposite to the rotating direction of the tool spindle around the center of the regular polygon to be processed during processing, the linear speed of the tool spindle rotating around the center of the regular polygon is f, and r1 is equal to (n is n2‑2×n+1)÷(n2‑2×n)×r，r2＝r÷(n2‑2×n)，f＝2×π×r×s×(n‑1)÷(n2‑2×n)。
Description
Technical Field
The invention relates to the technical field of machining, in particular to a method for machining an inner hole of a regular polygon.
Background
The existing regular polygon inner hole processing mostly adopts a broaching and punching processing method, the broaching processing needs a special broaching machine, the application range is small, and blind holes cannot be processed; the punching and cutting can be carried out on a lathe, a drilling machine and a milling machine, and a machine tool spindle needs to bear cutting resistance in the machining process and has damage to the machine tool.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a method for machining a regular polygonal inner hole, which does not need a special machine tool or a special cutter and has wide application range.
The purpose of the invention is realized as follows:
a method for processing an inner hole of a regular polygon is characterized by comprising 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, the axis of the inner hole is superposed with the axis of the regular polygon inner hole to be processed, the diameter of the inner hole is slightly smaller than the diameter of an inscribed circle of the regular polygon inner hole to be processed, a cutter adopted by the processing equipment is a single-edge boring cutter, and a cutter main shaft of the processing equipment rotates around the center of the processed regular polygon inner hole at a set rotating speed for feeding;
s2, clamping the workpiece on a workbench of the processing equipment, wherein a spacing distance r2 is arranged between the axial lead of the regular polygon inner hole to be processed and the axial lead of the single-edge boring cutter;
s3, processing the inner hole of the regular polygon
The radius of an inscribed circle of the regular polygon to be processed is r, the number of sides of the regular polygon is n, the processing radius of the single-edge boring cutter is r1, the rotating speed of the cutter spindle is s, the rotating direction of the cutter spindle around the center of the regular polygon inner hole is opposite to the rotating direction of the cutter spindle during processing, and the linear speed of the cutter spindle around the center of the regular polygon inner hole is f;
the relation n between the machining radius r1 of the single-blade boring cutter and the radius r of the inscribed circle of the machined regular polygon and the number of sides of the regular polygon is as follows:
r1＝(n2-2×n+1)÷(n2-2×n)×r
the relation between the distance r2 between the axial lead of the single-blade boring cutter and the axial lead of the processed regular polygon inner hole and the radius r of the processed regular polygon inscribed circle and the number n of the processed regular polygon sides is as follows:
r2＝r÷(n2-2×n)
the relationship between the linear speed f of the cutter main shaft rotating around the center of the regular polygon inner hole, the rotating speed s of the cutter main shaft, the radius r of the inscribed circle of the processed regular polygon and the number n of the processed regular polygon sides is as follows:
f＝2×π×r×s×(n-1)÷(n2-2×n)
preferably, the processing equipment is a three-axis numerically controlled milling machine.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
the invention uses a conventional numerical control three-axis milling machine and a general single-blade boring cutter to process the regular polygonal inner hole, thereby enlarging the processing and application range of processing equipment and the single-blade boring cutter.
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 single-edge boring cutter, 2 is a part to be machined, 3 is the rotation direction of a cutter main shaft, 4 is the rotation movement direction of the cutter main shaft around the center of a regular polygon inner hole during machining, and 2a is the contour of the machined regular polygon inner hole.
Detailed Description
Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
Referring to fig. 1 and 2, a method for processing a regular polygon inner hole uses a single-edge boring tool 1 to process a regular polygon inner hole profile 2a, the number of sides of a regular polygon to be processed by a part 2 to be processed is n, the radius of an inscribed circle of the processed regular polygon is r, the processing radius of a tool is r1, the rotating speed of a tool spindle is s, the distance between the axial line of the tool spindle and the axial line of the regular polygon inner hole is r2, during processing, the tool spindle rotates around the center of the regular polygon inner hole, the rotating direction 4 of the tool spindle around the center of the regular polygon inner hole is opposite to the rotating direction 3 of the tool spindle, and the linear speed of the tool spindle in rotating motion around the center of the regular polygon inner hole is f.
The relation between the processing radius r1 of the single-blade boring tool 1, the radius r of the inscribed circle of the processed regular polygon and the number n of the sides of the processed regular polygon is as follows:
r1＝(n2-2×n+1)÷(n2-2×n)×r
the relation between the distance r2 between the axis of the single-blade boring cutter and the axis of the processed regular polygon inner hole, the radius r of the processed regular polygon inscribed circle and the number n of the processed regular polygon sides is as follows:
r2＝r÷(n2-2×n)
the relation between the feeding speed f of the tool spindle and the rotating speed s of the tool spindle, the radius r of the inscribed circle of the machined regular polygon and the number n of the sides of the machined regular polygon is as follows:
f＝2×π×r×s×(n-1)÷(n2-2×n)
the above formulas are calculated according to the geometrical relationship of the regular polygon inner 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 (2)
1. A method for processing an inner hole of a regular polygon is characterized by comprising 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, the axis of the inner hole is superposed with the axis of the regular polygon inner hole to be processed, the diameter of the inner hole is slightly smaller than the diameter of an inscribed circle of the regular polygon inner hole to be processed, a cutter adopted by the processing equipment is a single-edge boring cutter, and a cutter main shaft of the processing equipment rotates around the center of the processed regular polygon inner hole at a set rotating speed for feeding;
s2, clamping the workpiece on a workbench of the processing equipment, wherein a spacing distance r2 is arranged between the axial lead of the regular polygon inner hole to be processed and the axial lead of the single-edge boring cutter;
s3, processing the inner hole of the regular polygon
The radius of an inscribed circle of the regular polygon to be processed is r, the number of sides of the regular polygon is n, the processing radius of the single-edge boring cutter is r1, the rotating speed of the cutter spindle is s, the rotating direction of the cutter spindle around the center of the regular polygon inner hole is opposite to the rotating direction of the cutter spindle during processing, and the linear speed of the cutter spindle around the center of the regular polygon inner hole is f;
the relation n between the machining radius r1 of the single-blade boring cutter and the radius r of the inscribed circle of the machined regular polygon and the number of sides of the regular polygon is as follows:
r1＝(n2-2×n+1)÷(n2-2×n)×r
the relation between the distance r2 between the axial lead of the single-blade boring cutter and the axial lead of the processed regular polygon inner hole and the radius r of the processed regular polygon inscribed circle and the number n of the processed regular polygon sides is as follows:
r2＝r÷(n2-2×n)
the relationship between the linear speed f of the cutter main shaft rotating around the center of the regular polygon inner hole, the rotating speed s of the cutter main shaft, the radius r of the inscribed circle of the processed regular polygon and the number n of the processed regular polygon sides is as follows:
f＝2×π×r×s×(n-1)÷(n2-2×n)
2. a method for machining an inner hole of a regular polygon according to claim 1, wherein: the processing equipment is a three-axis numerical control milling machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110730028.0A CN113385706B (en) | 2021-06-29 | 2021-06-29 | Method for machining regular polygon inner hole |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110730028.0A CN113385706B (en) | 2021-06-29 | 2021-06-29 | Method for machining regular polygon inner hole |
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| CN113385706A true CN113385706A (en) | 2021-09-14 |
| CN113385706B CN113385706B (en) | 2023-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110730028.0A Active CN113385706B (en) | 2021-06-29 | 2021-06-29 | Method for machining regular polygon inner hole |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86103540A (en) * | 1986-05-10 | 1987-01-31 | 姚鹏九 | Special-shaped line, face, body model become new method and multipotency model apparatus for converting |
| 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 |
| GB2286426A (en) * | 1994-02-11 | 1995-08-16 | Robert James Muldrew | Multi-angle mounting device |
| 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 |
| CN106513710A (en) * | 2016-11-29 | 2017-03-22 | 东方电气集团东方汽轮机有限公司 | Turning tool for regular polygon inner hole processing |
| 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 |
| CN110788425A (en) * | 2019-11-12 | 2020-02-14 | 哈尔滨理工大学 | Main shaft execution device and method for electric spark machining of fillet-free regular hexagonal hole |
| CN211708201U (en) * | 2019-12-06 | 2020-10-20 | 哈尔滨理工大学 | Machining device for machining triangular hole |
| CN213257440U (en) * | 2020-10-19 | 2021-05-25 | 沧州市鑫惠不锈钢冲压件有限公司 | Polygonal inner hole broaching equipment |
-
2021
- 2021-06-29 CN CN202110730028.0A patent/CN113385706B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86103540A (en) * | 1986-05-10 | 1987-01-31 | 姚鹏九 | Special-shaped line, face, body model become new method and multipotency model apparatus for converting |
| 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 |
| GB2286426A (en) * | 1994-02-11 | 1995-08-16 | Robert James Muldrew | Multi-angle mounting device |
| 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 |
| CN106513710A (en) * | 2016-11-29 | 2017-03-22 | 东方电气集团东方汽轮机有限公司 | Turning tool for regular polygon inner hole processing |
| 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 |
| CN110788425A (en) * | 2019-11-12 | 2020-02-14 | 哈尔滨理工大学 | Main shaft execution device and method for electric spark machining of fillet-free regular hexagonal hole |
| CN211708201U (en) * | 2019-12-06 | 2020-10-20 | 哈尔滨理工大学 | Machining device for machining triangular hole |
| CN213257440U (en) * | 2020-10-19 | 2021-05-25 | 沧州市鑫惠不锈钢冲压件有限公司 | Polygonal inner hole broaching equipment |
Non-Patent Citations (1)
| Title |
|---|
| 陈燕: "高效的多边形内孔加工刀具" * |
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| CN113385706B (en) | 2023-04-07 |
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