CN114799733A - Processing method for presetting unified angular reference by multiple associated factors - Google Patents
Processing method for presetting unified angular reference by multiple associated factors Download PDFInfo
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- CN114799733A CN114799733A CN202210410256.4A CN202210410256A CN114799733A CN 114799733 A CN114799733 A CN 114799733A CN 202210410256 A CN202210410256 A CN 202210410256A CN 114799733 A CN114799733 A CN 114799733A
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- angular reference
- hole
- circular ring
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- reference hole
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P13/00—Making metal objects by operations essentially involving machining but not covered by a single other subclass
- B23P13/02—Making metal objects by operations essentially involving machining but not covered by a single other subclass in which only the machining operations are important
Abstract
The invention discloses a processing method for presetting unified angular reference by a plurality of associated factors, which comprises the following specific steps: 1) when holes are formed in the circular ring type part, the hole with the smallest position degree in a plurality of holes formed in the circumferential direction of the circular ring type part is selected as an angular reference datum hole; 2) when no hole is formed in the circular ring part, artificially machining an angular reference datum hole in the circular ring part, wherein the position degree of the machined angular reference datum hole is the minimum; 3) respectively aligning the angular reference datum holes determined in the step 1) or the step 2) by the plurality of relevant factors, and processing the plurality of relevant factors; in the machining process of the circular ring parts, a common and unique angular reference item is uniformly determined after various machining information is integrated, so that the machining is convenient and fast, and the machining efficiency and the product quality are improved.
Description
Technical Field
The invention belongs to the technical field of aviation circular ring part manufacturing, and particularly relates to a processing method for presetting unified angular reference by multiple associated factors.
Background
In the mechanical processing, a drawing requires that a plurality of uniformly distributed or non-uniformly distributed holes or grooves and other contents are processed along the circumferential direction, and angular positions of the processed contents are often related and can not be changed randomly, otherwise, the assembling requirements can not be met finally. When these holes or grooves are machined, care is taken to ensure the relative positional relationship with each other, and the subsequent machining is performed with the attention to the angular positional relationship with the previously machined one. The following problems are liable to occur in practical processing:
firstly, processing a plurality of contents respectively before and after, establishing that the reference is not uniform, the relative position states are disordered, and errors are easy to occur;
the method has the advantages of non-uniform basis, mutual reference processing of various factors and large error.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a processing method for presetting a uniform angular reference by a plurality of associated factors, which is characterized in that in the mechanical processing process of some circular ring parts, a common and unique angular reference item is uniformly determined after various processing information is integrated, so that the processing is convenient and fast, and the processing efficiency and the product quality are improved.
In order to achieve the purpose, the invention provides the following technical scheme: a processing method for presetting a unified angular reference by a plurality of associated factors is disclosed, wherein the unified angular reference is applied to circular ring parts with a common rotation center, and the specific steps are as follows:
1) when holes are formed in the circular ring part of the circular ring part, the hole with the minimum position degree in a plurality of holes circumferentially arranged on the circular ring part is selected as an angular reference hole, and the angular reference hole and a plurality of associated factors to be processed are arranged around the same circle center;
2) when no hole is formed in the circular ring part, an angular reference hole is manually machined in the circular ring part after the circular ring part is finely turned, the position degree of the machined angular reference hole is minimum, and the machined angular reference hole and a plurality of relevant factors to be machined are arranged around the same circle center;
3) establishing angle size association between a plurality of association factors to be processed and the angular reference hole, respectively aligning the angular reference hole determined in the step 1) or 2) by the plurality of association factors, and processing the plurality of association factors.
Further, in steps 1) and 2), a face hole is selected as an angular reference hole.
Further, in step 2), the angular reference hole is machined before all the related factors are machined.
Further, in the step 2), a machining allowance is reserved during machining of the angular reference hole, and the diameter tolerance and the position degree of the angular reference hole are smaller than or equal to any other relevant factors.
Further, in the step 2), when the aperture of the angular reference hole is smaller than 5mm, the reserved machining allowance is 0.5 mm-0.8 mm; and when the aperture of the angular reference datum hole is larger than 5mm, reserving the machining allowance to be 0.8 mm-2 mm.
Further, in the steps 1) and 2), the position degree of the angular reference datum hole is equal to the minimum position degree of the correlation factor minus two times of the unilateral positioning clearance; the unilateral positioning clearance is a clearance between the angular reference datum hole and the pin on the clamp during part clamping.
Further, in the steps 1) and 2), the position degree of the angular reference hole is not more than phi 0.05 mm.
Further, in the step 3), after the angular reference datum holes are used, the angular reference datum holes are synchronously machined when some relevant factor is machined, and the requirement for machining into the drawing is met.
Further, in step 3), after the angular reference hole is used, it is machined and removed.
Compared with the prior art, the invention has at least the following beneficial effects:
the invention provides a processing method for presetting a unified angular reference by multiple associated factors, which is applied to circular ring parts with a common rotating center, establishes an angular reference hole which is executed by common reference for multiple processing associated factors with mutual association, wherein the angular reference hole and the multiple associated factors to be processed are all arranged around the same circle center, defines the position degree of the angular reference hole, and establishes the angle size association between the angular reference hole and the multiple associated factors to be processed; the angular reference holes defined by the invention as common and unique angular references always play an important reference role in each machining process.
The angular reference hole can be a hole in a plurality of associated factors or a hole with a certain machining allowance, when the angular reference hole is damaged after being used, the angular reference hole can be machined and eliminated, or when one associated factor is machined after being used, the angular reference hole is synchronously machined, the size required by a drawing is met, the uniformity of the size of the hole in a ring part is ensured, or a specially designed process hole is formed, and the angular reference hole can be completely machined and removed after being used.
Drawings
FIG. 1 is a partial schematic view of a ring-like component;
FIG. 2 is a schematic view of an angular reference datum hole in embodiment 1;
FIG. 3 is a schematic view of a radial hole in embodiment 1;
FIG. 4 is a schematic view of an end face arc-shaped slot in embodiment 1;
in the drawings: 1 angular reference datum hole, 2 radial holes and 3 arc-shaped grooves.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
The invention provides a processing method for presetting a unified angular reference by a plurality of associated factors of a circular ring part, which is mainly suitable for the circular ring part with a common rotating center, wherein the factors are structures such as holes, grooves and the like which are uniformly distributed or arranged at opposite angular positions on the circular ring part, the associated factors are the factors which have the common rotating center on the same circular ring part and have fixed required angular relation with each other, and the specific steps are as follows:
(1) determining an angular reference datum hole 1 from a circular ring part, specifically:
1) when holes are formed in the circular ring part, selecting the hole with the minimum position degree from a plurality of holes circumferentially arranged on the circular ring part as an angular reference hole 1, wherein the angular reference hole 1 and a plurality of associated factors to be processed are arranged around the same circle center;
2) when no hole is formed in the circular ring part, an angular reference hole 1 is manually machined in the circular ring part after the circular ring part is finely turned, the position degree of the machined angular reference hole 1 is minimum, and the machined angular reference hole and a plurality of relevant factors to be machined are arranged around the same circle center.
Preferably, a terminal surface hole is selected as the angular reference datum hole 1;
(2) when the angular reference datum hole 1 is machined, the angular reference datum hole 1 is machined before all relevant factors are machined, when the angular reference datum hole 1 is machined, a certain machining allowance needs to be reserved, the diameter tolerance and the position degree requirement need to be tightened, and the specific angular reference datum hole 1 meets the following requirements:
1) the position degree of the angular reference hole 1 is lower than that of any other related factor, for example, the position degree of the related factor is lower than the requirement phi 0.1mm, and the position degree of the angular reference hole 1 is smaller than phi 0.1 mm.
2) When clamping a circular ring part, a gap exists between the angular reference hole 1 and a pin on the clamp in a positioning mode, the position degree of the angular reference hole 1 is equal to the minimum position degree of the associated factor minus two times of a single-side positioning gap, and if: the unilateral positioning clearance is 0.015mm, the minimum position degree phi of the associated factor is 0.1mm, the position degree phi of the angular reference datum hole 1 is 0.07mm, and the aperture tolerance is not more than 0.03 mm; if the influence of deformation of the circular ring part and the like is considered at the same time, and the machining of the machine tool ensures that the position degree phi is not within 0.05mm, the position degree of the angular reference hole 1 is required to be not more than phi 0.05 mm.
Preferably, the angular reference datum hole is matched with the positioning pin on the clamp for use, the angular positioning pin can be aligned at one time during batch processing, repeated and quick part adding and processing are achieved, each part is not required to be aligned once, processing efficiency is improved, the positioning pin on the clamp is in a diamond shape, the positioning pin only has a pure angular positioning function, radial positioning influence can be eliminated, and parts can be installed more smoothly.
Preferably, the reserved machining allowance of the angular reference datum hole 1 is determined by the aperture of the angular reference datum hole 1, and when the aperture of the angular reference datum hole 1 is smaller than 5mm, the reserved machining allowance is 0.5-0.8 mm; when the aperture of the angular reference datum hole 1 is larger than 5mm, the reserved machining allowance is 0.8-2 mm.
(3) Establishing angle size association between a plurality of association factors to be processed and an angular reference datum hole, respectively aligning the same angular reference datum hole 1 by all the association factors, and respectively finishing the processing of each association factor;
(4) because allowance is reserved when the angular reference datum hole 1 is machined, after the angular reference datum hole 1 is used, synchronous machining is carried out when some relevant factor is machined, and the requirement for machining into a drawing is met; or machined away after the angular reference hole 1 is used.
Example 1
Taking the holes and grooves distributed circumferentially on a certain shell type ring part as an example:
as shown in fig. 1, after the machining of the external dimensions of the circular ring part is completed, the machining of the radial holes 2 and the arc-shaped grooves 3 at each circumferential position is started, and because of the angular position relationship between the radial holes and the arc-shaped grooves, a common and unique angular reference hole 1 needs to be selected and determined.
Selecting a hole with the minimum position degree from axial holes on the upper end surface of the circular ring part as a uniform and unique angular reference datum hole 1, as shown in figure 1;
and (2) after finishing the contour dimension of the ring-shaped part, machining the angular reference hole 1, and reserving a proper machining allowance for the angular reference hole 1 when machining is required, wherein as shown in fig. 2, the aperture of the angular reference hole 1 is 4mm, the position degree is 0.03mm, and the aperture tolerance is +0.025 mm.
Step (3), respectively aligning the same angular reference datum hole 1 by all related factors, and finishing the processing of 12 radial holes 2 uniformly distributed on the excircle of the small end of a certain shell type circular ring type part, wherein the hole diameter is 9mm, the hole diameter tolerance is +0.15mm, 6 arc-shaped grooves 3 on the end surface of a step are milled, and the width of the arc-shaped grooves 3 is 6mm, as shown in figures 3 and 4;
and (4) in the process of machining the large-end axial hole of a certain shell type circular ring type part, finishing the size expansion machining of the angular reference datum hole 1 at the same time, and enabling the machining to meet the design requirements.
Claims (9)
1. The processing method for presetting the unified angular reference by the multiple associated factors is characterized in that the unified angular reference is applied to circular ring parts with a common rotation center, and the specific steps are as follows:
1) when holes are formed in a circular ring part of a circular ring part, selecting the hole with the minimum position degree in a plurality of holes circumferentially arranged on the circular ring part as an angular reference hole (1), wherein the angular reference hole (1) and a plurality of associated factors to be processed are arranged around the same circle center;
2) when no hole is formed in the circular ring part, an angular reference hole (1) is manually machined in the circular ring part after the circular ring part is finely turned, the position degree of the machined angular reference hole (1) is minimum, and the machined angular reference hole and a plurality of relevant factors to be machined are arranged around the same circle center;
3) establishing angle size association between a plurality of association factors to be processed and the angular reference hole, respectively aligning the angular reference hole (1) determined in the step 1) or the step 2) by the plurality of association factors, and processing the plurality of association factors.
2. The machining method for presetting the uniform angular reference by multiple correlation factors according to claim 1, characterized in that in the steps 1) and 2), a face hole is selected as the angular reference hole (1).
3. The machining method for the preset unified angular reference by multiple correlation factors according to claim 1, characterized in that in the step 2), when the machining of the angular reference hole (1) is performed, the angular reference hole (1) is machined before all the correlation factors are machined.
4. The machining method for presetting the uniform angular reference by the multiple related factors according to claim 1, characterized in that in the step 2), a machining allowance is reserved when the angular reference hole (1) is machined, and the diameter tolerance and the position degree of the angular reference hole (1) are less than or equal to any other related factor.
5. The processing method for presetting the unified angular reference by the multiple association factors according to claim 4, characterized in that in the step 2), when the aperture of the angular reference hole (1) is smaller than 5mm, the reserved processing allowance is 0.5 mm-0.8 mm; when the aperture of the angular reference hole (1) is larger than 5mm, the reserved machining allowance is 0.8 mm-2 mm.
6. The machining method for presetting the unified angular reference by multiple correlation factors according to claim 1, characterized in that in steps 1) and 2), the position degree of the angular reference hole (1) is equal to the minimum position degree of the correlation factors minus two times of a unilateral positioning gap; the unilateral positioning gap is a gap between the angular reference datum hole (1) and the pin on the clamp for positioning when a part is clamped.
7. The machining method for presetting the unified angular reference by multiple related factors according to claim 1, wherein in the steps 1) and 2), the position degree of the angular reference hole (1) is not more than phi 0.05 mm.
8. The processing method of the preset unified angular reference of the multiple associated factors according to claim 1, characterized in that in step 3), after the angular reference hole (1) is used, the angular reference hole (1) is synchronously processed when one of the associated factors is processed, so as to meet the size required by a drawing.
9. The method for machining the multi-association-factor preset unified angular reference is characterized in that in the step 3), the angular reference holes (1) are machined and removed after being used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210410256.4A CN114799733A (en) | 2022-04-19 | 2022-04-19 | Processing method for presetting unified angular reference by multiple associated factors |
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| CN202210410256.4A CN114799733A (en) | 2022-04-19 | 2022-04-19 | Processing method for presetting unified angular reference by multiple associated factors |
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| CN101920453A (en) * | 2010-04-23 | 2010-12-22 | 中国第一重型机械股份公司 | Method for machining spatial hole by using large ellipsoid on numerical control boring-milling machine |
| CN206066251U (en) * | 2016-08-22 | 2017-04-05 | 中山市嘉迪环保设备有限公司 | A kind of multiplex polishing frosted disk |
| CN109443265A (en) * | 2018-12-06 | 2019-03-08 | 西安交通大学 | Assessment method based on polar angle dichotomizing search optimizing circumference equal dividing hole location |
| CN109604674A (en) * | 2019-01-02 | 2019-04-12 | 武汉船用机械有限责任公司 | The processing method in circumferential group hole |
| CN111889730A (en) * | 2020-06-15 | 2020-11-06 | 成都飞机工业（集团）有限责任公司 | Robot hole-making reference setting method for weak-rigidity airplane component assembly |
| CN212734929U (en) * | 2020-06-09 | 2021-03-19 | 上海马拉松·革新电气有限公司 | Drilling and tapping integrated tool for bottom foot mounting hole of generator shell |
| CN113976954A (en) * | 2021-12-15 | 2022-01-28 | 中国航发动力股份有限公司 | Multi-angle inclined hole machining clamp and method |
-
2022
- 2022-04-19 CN CN202210410256.4A patent/CN114799733A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003062732A (en) * | 2001-08-23 | 2003-03-05 | Okuma Corp | Jig for mounting workpiece |
| CN101920453A (en) * | 2010-04-23 | 2010-12-22 | 中国第一重型机械股份公司 | Method for machining spatial hole by using large ellipsoid on numerical control boring-milling machine |
| CN206066251U (en) * | 2016-08-22 | 2017-04-05 | 中山市嘉迪环保设备有限公司 | A kind of multiplex polishing frosted disk |
| CN109443265A (en) * | 2018-12-06 | 2019-03-08 | 西安交通大学 | Assessment method based on polar angle dichotomizing search optimizing circumference equal dividing hole location |
| CN109604674A (en) * | 2019-01-02 | 2019-04-12 | 武汉船用机械有限责任公司 | The processing method in circumferential group hole |
| CN212734929U (en) * | 2020-06-09 | 2021-03-19 | 上海马拉松·革新电气有限公司 | Drilling and tapping integrated tool for bottom foot mounting hole of generator shell |
| CN111889730A (en) * | 2020-06-15 | 2020-11-06 | 成都飞机工业（集团）有限责任公司 | Robot hole-making reference setting method for weak-rigidity airplane component assembly |
| CN113976954A (en) * | 2021-12-15 | 2022-01-28 | 中国航发动力股份有限公司 | Multi-angle inclined hole machining clamp and method |
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