CN103084809A - Machining method for triquetrum hole - Google Patents
Machining method for triquetrum hole Download PDFInfo
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- CN103084809A CN103084809A CN2013100635151A CN201310063515A CN103084809A CN 103084809 A CN103084809 A CN 103084809A CN 2013100635151 A CN2013100635151 A CN 2013100635151A CN 201310063515 A CN201310063515 A CN 201310063515A CN 103084809 A CN103084809 A CN 103084809A
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- triangular hole
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- triquetrum
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Abstract
The invention discloses a machining method for a triquetrum hole. The machining method for the triquetrum hole comprises a step of preboring a blank hole in a machining center and is characterized by further comprising the following steps: drawing a two-dimensional spline line according to a triquetrum shape formula; fitting the two-dimensional spline line into a series of circular arc segments; saving the series of circular arc segments as a document in a .dxf form; programming the circular arcs by means of the software CIMCOEditV5.5; and tranmistting the programs to a numerical control milling device, and rough milling, half fine milling and fine milling the predrilled blank hole of a triquetrum hole into the triquetrum hole by means of the numerical control milling device. The machining method for the triquetrum hole has the advantages of being high in machining efficiency, high in precision and low in requirement on a device.
Description
Technical field
The present invention relates to hole forming method in mechanical field, particularly a kind of triangular hole forming method.
Background technology
In some products and part of mechanical field, there is the triangular hole of some special shapes.This triangular hole as shown in Figure 1, its shape is similar in appearance to triangle, formed by the segment link of three sections approximate circle arcs.Because its shape is special, therefore its processing is more difficult.At present, the processing method of this triangular hole being taked has following two kinds;
The first triangular hole forming method comprises the following steps;
1, preboring blank circular port on drilling machine;
2, at copying drilling machine to the roughing of blank circular port;
3, at the triangular grinding machine, the triangular hole is carried out slightly, is finish-ground in roughwrought circular blanks hole.
The second triangular hole forming method comprises the following steps;
1, preboring blank circular port on drilling machine;
2, at CNC milling machine to the roughing of blank circular port;
3, with the triangular grinding machine, approximate triangular hole is roughly ground in roughwrought circular blanks hole;
4, will be finish-ground to the triangular hole through roughly grinding into approximate triangular hole at the triangular grinding machine.
Above two kinds of triangular hole forming methods due to needs respectively on different equipment, for example drilling machine, copying drilling machine, triangular grinding machine and CNC milling machine carry out Roughing and fine machining, thereby exist working (machining) efficiency low, need to work out corresponding processing technology on different equipment, thereby processing technology is complicated and to defectives such as equipment requirement height.And Digit Control Machine Tool numerical control program used is to adopt straight line to approach and the numerical control program worked out, and there is suitable difference in its shape and triangular hole, and machining accuracy is wayward.
Summary of the invention
The technical problem to be solved in the present invention is to provide that a kind of working (machining) efficiency is high, precision is high, triangular hole forming method low for equipment requirements.
For solving the problems of the technologies described above, the present invention takes following technical scheme:
A kind of triangular hole forming method is included in the step in the circular blanks hole in preboring triangular hole on machining center, it is characterized in that; Also comprise the steps:
According to the prismatic formula, draw the step of two-dimensional spline line;
The two-dimensional spline line is fitted to the step of series of arc;
Save as the step of .dxf formatted file;
The step of utilizing software that above-mentioned circular arc is programmed;
Program is reached numerical control milling equipment, utilize this numerical control milling equipment with the circular blanks hole hair of preboring is rough milled, half finish-milling, finish-milling become the triangular hole step.
Further, also comprise the step that the triangular hole is finish grinded on the triangular grinding machine.
Further, described work in-process in the heart the blank hole in preboring triangular hole be the typical circular hole;
Further again, the software of described drafting prismatic two-lines is CAXA 2007;
Further again, the software of described establishment triangular hole procedure is CIMCO Edit V5.5.
Compared with prior art, triangular hole forming method of the present invention has following beneficial effect;
1, because the operation content concentrates on drilling and milling on work in-process heart equipment, realized from blank to the processing of triangular hole forming Full-numerical-control, improved triangular hole working (machining) efficiency.
2, because employing is that circular fitting is processed the triangular hole, the straight line that adopts compared to original method approaches and the numerical control program worked out, the program track of editing is closer to the true shape in triangular hole, and fitting precision is controlled, has improved the machining accuracy in triangular hole.
3, the present invention only needs two conventional equipments usually: machining center (or other milling device), special-purpose triangular grinding machine.And if in the not high situation of the required precision in triangular hole, can save grinding process, and only need the logical machining center equipment of a Daepori can complete the processing in triangular hole, reduced the specification requirement of triangular hole processing to equipment.
Description of drawings
Fig. 1 is triangular pore structure schematic diagram;
Fig. 2 is triangular hole forming method process step schematic diagram of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the invention is elaborated;
Referring to Fig. 1, triangular hole forming method of the present invention comprises the following steps; Be included in the step of the blank hole in preboring triangular hole on general-purpose machining center; Also comprise the steps:
According to the prismatic formula, draw the step of two-dimensional spline line; For example prismatic P3-40-1.4 is following formula:
X（t）=(20-1.4*cos(3*t))*cos(t+30)-3*1.4*sin(3*t)*sin(t+30)
Y（t）=?(20-1.4*cos(3*t))*sin(t+30)+3*1.4*sin(3*t)*cos(t+30)
(noting: by guaranteeing to be plotted, degree of precision is arranged as far as possible, when carrying out the formula curve drafting with software CAXA 2007, the parameter of " precision control " option should be arranged less than the required precision in triangular hole);
The two-dimensional spline line is fitted to the step of series of arc;
Save as the step of .dxf formatted file;
The step of utilizing software that above-mentioned circular arc is programmed;
Program is reached numerical control milling equipment, utilize this numerical control milling equipment with the blank hole in preboring triangular hole is rough milled, half finish-milling, finish-milling become the triangular hole step;
Further, in the situation that triangular hole required precision is higher, also comprise the step that the triangular hole is finish grinded on the triangular grinding machine;
Further, the described work in-process blank hole in preboring triangular hole in the heart is the typical circular hole, namely can be used for processing the triangular hole;
Further again, the software of described drafting prismatic two-lines is CAXA 2007;
Further again, the software of described establishment triangular hole procedure is CIMCO Edit V5.5.
Claims (5)
1. triangular hole forming method is included in the step of the blank hole in preboring triangular hole on machining center, it is characterized in that; Also comprise the steps:
According to the prismatic formula, draw the step of two-dimensional spline line;
The two-dimensional spline line is fitted to the step of series of arc;
Save as the step of .dxf formatted file;
The step of utilizing the above-mentioned circular arc of software to programme;
Program is reached numerical control milling equipment, utilize this numerical control milling equipment with the blank hole in preboring triangular hole is rough milled, half finish-milling, finish-milling become the triangular hole step.
2. triangular hole forming method according to claim 1, is characterized in that; Also comprise the step that the triangular hole is finish grinded on the triangular grinding machine.
3. triangular hole forming method according to claim 1 and 2, is characterized in that; The described work in-process blank hole in preboring triangular hole in the heart is circular port.
4. triangular hole forming method according to claim 1 and 2, is characterized in that; The software of described drafting prismatic two-lines is CAXA 2007.
5. triangular hole forming method according to claim 1 and 2, is characterized in that; The software of described establishment triangular hole procedure is CIMCO Edit V5.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100635151A CN103084809A (en) | 2013-02-28 | 2013-02-28 | Machining method for triquetrum hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100635151A CN103084809A (en) | 2013-02-28 | 2013-02-28 | Machining method for triquetrum hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103084809A true CN103084809A (en) | 2013-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100635151A Pending CN103084809A (en) | 2013-02-28 | 2013-02-28 | Machining method for triquetrum hole |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104384824A (en) * | 2014-10-16 | 2015-03-04 | 沈阳黎明航空发动机(集团)有限责任公司 | Processing methods of High temperature alloy GH4169 special-shaped hole and hole edge fillet |
| 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 |
| CN114857083A (en) * | 2022-05-23 | 2022-08-05 | 重庆通用工业(集团)有限责任公司 | Machining device and method for shaft connecting structure of three-dimensional flow impeller and pinion |
| CN114952212A (en) * | 2022-07-06 | 2022-08-30 | 上海中船三井造船柴油机有限公司 | Method for machining connecting rod waist-shaped hole of marine diesel engine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5442088A (en) * | 1977-09-07 | 1979-04-03 | Ntn Toyo Bearing Co Ltd | Method for providing a window hole in a cylindrical blank |
| CN1903506A (en) * | 2005-07-22 | 2007-01-31 | 日立比亚机械股份有限公司 | Drilling method |
| CN102615435A (en) * | 2012-04-13 | 2012-08-01 | 中国航空工业集团公司北京航空制造工程研究所 | Method for directly machining turbine blade air film irregular holes through laser |
| CN102890476A (en) * | 2012-10-18 | 2013-01-23 | 深圳市银宝山新科技股份有限公司 | Deep hole drill programming method and deep hole drill programming system |
-
2013
- 2013-02-28 CN CN2013100635151A patent/CN103084809A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5442088A (en) * | 1977-09-07 | 1979-04-03 | Ntn Toyo Bearing Co Ltd | Method for providing a window hole in a cylindrical blank |
| CN1903506A (en) * | 2005-07-22 | 2007-01-31 | 日立比亚机械股份有限公司 | Drilling method |
| CN102615435A (en) * | 2012-04-13 | 2012-08-01 | 中国航空工业集团公司北京航空制造工程研究所 | Method for directly machining turbine blade air film irregular holes through laser |
| CN102890476A (en) * | 2012-10-18 | 2013-01-23 | 深圳市银宝山新科技股份有限公司 | Deep hole drill programming method and deep hole drill programming system |
Non-Patent Citations (1)
| Title |
|---|
| 王波等: "多棱形曲线轴在火炮传动机构中的应用", 《火炮发射与控制学报》, no. 1, 15 March 2008 (2008-03-15) * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104384824A (en) * | 2014-10-16 | 2015-03-04 | 沈阳黎明航空发动机(集团)有限责任公司 | Processing methods of High temperature alloy GH4169 special-shaped hole and hole edge fillet |
| 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 |
| CN114857083A (en) * | 2022-05-23 | 2022-08-05 | 重庆通用工业(集团)有限责任公司 | Machining device and method for shaft connecting structure of three-dimensional flow impeller and pinion |
| CN114857083B (en) * | 2022-05-23 | 2024-03-08 | 重庆通用工业(集团)有限责任公司 | Machining device and method for ternary flow impeller and pinion shaft connecting structure |
| CN114952212A (en) * | 2022-07-06 | 2022-08-30 | 上海中船三井造船柴油机有限公司 | Method for machining connecting rod waist-shaped hole of marine diesel engine |
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Application publication date: 20130508 |