CN114654304A - Machining method for guaranteeing position degree of precision hole based on compensation method - Google Patents
Machining method for guaranteeing position degree of precision hole based on compensation method Download PDFInfo
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- CN114654304A CN114654304A CN202210412094.8A CN202210412094A CN114654304A CN 114654304 A CN114654304 A CN 114654304A CN 202210412094 A CN202210412094 A CN 202210412094A CN 114654304 A CN114654304 A CN 114654304A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q23/00—Arrangements for compensating for irregularities or wear, e.g. of ways, of setting mechanisms
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Abstract
The invention discloses a machining method for ensuring the position degree of a precision hole based on a compensation method, and belongs to the field of machining. The invention adopts a boring mode to carry out reaming, thus eliminating the hole position deviation caused by the abrasion, deflection and the like of the drill bit; then, the hole position is compensated and corrected by using a machining program, so that the hole position deviation caused by the machining precision of a machine tool is eliminated; the method is suitable for machining the precise hole with high requirement on the position degree, compensates and corrects the position degree of the precise hole by using the on-line measuring system of the machine tool, solves the problem that the position degree of the precise hole in the prior art highly depends on the precision of equipment, can be widely applied to manufacturing various parts of an aeroengine, and reliably meets the performance requirement on the position degree of the hole of a product.
Description
Technical Field
The invention belongs to the field of machining, and particularly relates to a machining method for ensuring the position degree of a precision hole based on a compensation method.
Background
The aero-engine is complex in structure, high reliability is required in the working process, the assembly requirement of parts is high, and more precise holes exist in parts to finish precise assembly of the complex structure, so that the aperture size is qualified and the position requirement is further ensured in the precise hole machining process, and for the traditional precise hole machining method, the hole position can be finally ensured only through the machine tool precision even if a drilling-boring-reaming machining mode is adopted. The traditional precision hole machining method has the advantages that the position degree guarantee is highly dependent on the precision of a machine tool, and when the precision of the machine tool is reduced due to use or maintenance, the traditional precision hole machining method cannot guarantee the position degree requirement of the precision hole.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a machining method for ensuring the position degree of a precise hole based on a compensation method.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:
a machining method for guaranteeing the position degree of a precision hole based on a compensation method comprises the following steps:
step 1: processing a bottom hole of the part precision hole by adopting a drilling mode to obtain a drilling bottom hole;
step 2: reaming the drilling bottom hole in a boring mode to obtain a boring reaming hole;
and step 3: carrying out position measurement on the boring and reaming by utilizing an on-machine measuring system of a machine tool to obtain the deviation between actual position data and target position data of the boring and reaming, and compensating the deviation into a machining coordinate system through a numerical control program;
and 4, step 4: reaming by adopting a boring mode to obtain the boring reaming after the position is compensated and corrected;
and 5: and reaming until the aperture of the machining hole reaches the aperture of the target precise hole, and finishing machining.
Further, the aperture of the drilling bottom hole in the step 1 is smaller than the target aperture of the precise hole.
Further, the hole diameter of the boring and reaming in the step 2 is smaller than the target hole diameter of the precision hole.
Further, the target position data in step 3 is a position coordinate of a reference circle of the target precision hole.
Further, the deviations of the actual position data of the boring reaming and the target position data in the step 3 are X1 and Y1, X1 is an abscissa deviation, and Y1 is an ordinate deviation.
Further, the aperture of the target precision hole
The position degree requirement is Φ 0.04.
Further, the hole diameter phi of the drilled bottom hole in the step 1 is 10.9.
Further, the hole diameter phi of the boring hole expansion in the step 2 is 11.1.
Further, in step 3, the boring and reaming are subjected to position measurement by a machine tool on a machine measurement command, and the position deviation X1 is 0.01mm, and the position deviation Y1 is 0.03 mm.
Further, the hole diameter phi 11.3 of the boring and reaming hole after the position is corrected is compensated in the step 4.
Compared with the prior art, the invention has the following beneficial effects:
the processing method for ensuring the position degree of the precise hole based on the compensation method adopts a boring mode to carry out hole expansion, and eliminates the hole position degree deviation caused by the abrasion, deflection and the like of a drill bit; then, the hole position is compensated and corrected by using a machining program, so that the hole position deviation caused by the machining precision of a machine tool is eliminated; the method is suitable for machining the precise hole with high requirement on the position degree, compensates and corrects the position degree of the precise hole by using the on-line measuring system of the machine tool, solves the problem that the position degree of the precise hole in the prior art highly depends on the precision of equipment, can be widely applied to manufacturing various parts of an aeroengine, and reliably meets the performance requirement on the position degree of the hole of a product.
Drawings
FIG. 1 is a schematic diagram of a process for ensuring the position of a precision hole based on a compensation method;
wherein: 1-drilling a bottom hole; 2, boring and reaming; 3-boring and reaming after compensating and correcting the position; 4-target precision hole.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The invention is described in further detail below with reference to the accompanying drawings:
examples
In this embodiment, a group of low-pressure turbine shaft flange precision holes are processed to ensure the requirements of the hole diameter size and the hole position degree, and the hole diameter of the group of holes
The position degree requirement is Φ 0.04.
Because the requirement on the position degree of the precise hole is high, the traditional hole machining method cannot ensure the requirement on the position degree, and the machining steps by adopting the machining method provided by the invention are as follows, which is explained by combining with a figure 1:
step one, machining the hole group to phi 10.9 by adopting a drilling machining process to obtain a drilling bottom hole 1;
expanding the hole of the drilling bottom hole 1 to phi 11.1 by adopting a boring processing technology, eliminating hole position degree deviation caused by drill bit abrasion, deflection and the like, and obtaining a boring reaming hole 2;
and step three, carrying out position measurement on the boring and reaming 2 through an on-machine measurement instruction of a machine tool, comparing the measured actual hole position data with the target position data, and automatically compensating the hole position difference in the machining program.
In this embodiment, the deviation between the position of the precision hole and the position of the reference circle is as follows: compensating the deviation into a machining coordinate system by a numerical control program, wherein X1 is 0.01mm, and Y1 is 0.03 mm;
and step four, continuing to expand the hole group to phi 11.3 by adopting a boring mode, eliminating the hole position degree deviation caused by the precision error of the machine tool in the boring, ensuring the position degree of the hole, and obtaining the boring and reaming 3 after compensating and correcting the position.
And step five, machining the hole group to phi 11.48 by using a reamer, ensuring the aperture requirement of the hole group, finishing the machining of the whole group of holes, and showing that the finally machined holes are superposed with the target precise holes 4, thereby showing that the machining method of the invention has accurate machining.
The above contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention should not be limited thereby, and any modification made on the basis of the technical idea proposed by the present invention falls within the protection scope of the claims of the present invention.
Claims (10)
1. A machining method for guaranteeing the position degree of a precise hole based on a compensation method is characterized by comprising the following steps:
step 1: machining a bottom hole of the part precision hole in a drilling mode to obtain a drilling bottom hole (1);
step 2: reaming the drilling bottom hole (1) by adopting a boring mode to obtain a boring reaming hole (2);
and 3, step 3: carrying out position measurement on the boring reaming (2) by utilizing an on-machine measuring system of a machine tool to obtain the deviation of actual position data and target position data of the boring reaming, and compensating the deviation into a machining coordinate system through a numerical control program;
and 4, step 4: reaming in a boring mode to obtain a boring reaming hole (3) after the position is compensated and corrected;
and 5: and reaming until the aperture of the machining hole reaches the aperture of the target precise hole (4), and finishing machining.
2. The machining method for ensuring the positional accuracy of a precision hole based on the compensation method according to claim 1, wherein the hole diameter of the drilling bottom hole (1) of step 1 is smaller than the target hole diameter of the precision hole.
3. The machining method for ensuring the positional accuracy of a precision hole based on the compensation method as claimed in claim 1, wherein the hole diameter of the boring and reaming (2) of step 2 is smaller than the target hole diameter of the precision hole.
4. The machining method for ensuring the positional accuracy of the precision hole based on the compensation method as claimed in claim 1, wherein the target position data in step 3 is position coordinates of a reference circle of the target precision hole (4).
5. The machining method for guaranteeing the position accuracy of the precise hole based on the compensation method as claimed in claim 1, wherein the deviations of the actual position data of the boring and reaming and the target position data in the step 3 are X1 and Y1, X1 is the horizontal coordinate deviation, and Y1 is the vertical coordinate deviation.
6. The machining method for ensuring the accuracy of the position of a precision hole based on the compensation method according to claim 1, wherein the diameter of the target precision hole (4) is set to be smaller than the diameter of the target precision hole
The position degree requirement is Φ 0.04.
7. The machining method for ensuring the accuracy of the hole position based on the compensation method according to claim 6, wherein the hole diameter Φ 10.9 of the drilled bottom hole (1) of step 1.
8. The machining method for ensuring the positional accuracy of a precision hole based on the compensation method as claimed in claim 7, wherein the hole diameter Φ 11.1 of the boring and reaming (2) of step 2.
9. The machining method for ensuring the accuracy of the position of the precision hole based on the compensation method as claimed in claim 7, wherein the position of the boring and reaming (2) is measured by a machine tool on the machine measurement command in step 3, and the position deviation X1 is 0.01mm, and Y1 is 0.03 mm.
10. The machining method for ensuring the accuracy of the position of a precision hole based on the compensation method according to claim 9, wherein the hole diameter Φ 11.3 of the boring and reaming (3) after the position correction is compensated for in step 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210412094.8A CN114654304A (en) | 2022-04-19 | 2022-04-19 | Machining method for guaranteeing position degree of precision hole based on compensation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210412094.8A CN114654304A (en) | 2022-04-19 | 2022-04-19 | Machining method for guaranteeing position degree of precision hole based on compensation method |
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| CN114654304A true CN114654304A (en) | 2022-06-24 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103659159A (en) * | 2012-09-07 | 2014-03-26 | 中国航空工业第六一八研究所 | Hydraulic shell high-precision long and deep valve installation hole machining method |
| CN107717343A (en) * | 2017-09-28 | 2018-02-23 | 中国航发动力股份有限公司 | A kind of processing method of precise small-diameter blind hole |
| CN109746651A (en) * | 2019-03-18 | 2019-05-14 | 哈尔滨电机厂有限责任公司 | A kind of generator pit and end cap pin hole are the same as the processing method that drills and reams |
| CN113333805A (en) * | 2021-06-24 | 2021-09-03 | 中国航发中传机械有限公司 | Variable-section multi-layer intermittent deep hole machining method |
| CN113899329A (en) * | 2021-09-29 | 2022-01-07 | 中国航发动力股份有限公司 | Automatic compensation machining method for axial hole position degree |
-
2022
- 2022-04-19 CN CN202210412094.8A patent/CN114654304A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103659159A (en) * | 2012-09-07 | 2014-03-26 | 中国航空工业第六一八研究所 | Hydraulic shell high-precision long and deep valve installation hole machining method |
| CN107717343A (en) * | 2017-09-28 | 2018-02-23 | 中国航发动力股份有限公司 | A kind of processing method of precise small-diameter blind hole |
| CN109746651A (en) * | 2019-03-18 | 2019-05-14 | 哈尔滨电机厂有限责任公司 | A kind of generator pit and end cap pin hole are the same as the processing method that drills and reams |
| CN113333805A (en) * | 2021-06-24 | 2021-09-03 | 中国航发中传机械有限公司 | Variable-section multi-layer intermittent deep hole machining method |
| CN113899329A (en) * | 2021-09-29 | 2022-01-07 | 中国航发动力股份有限公司 | Automatic compensation machining method for axial hole position degree |
Non-Patent Citations (1)
| Title |
|---|
| 维森，徐兴硕，陆荣，陈文成，刘剑龙: "大型航天器高精度孔位测量加工一体化工艺方法", 《工具技术》 * |
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