CN109631714A - A kind of porous series position degree detection method - Google Patents
A kind of porous series position degree detection method Download PDFInfo
- Publication number
- CN109631714A CN109631714A CN201811544988.2A CN201811544988A CN109631714A CN 109631714 A CN109631714 A CN 109631714A CN 201811544988 A CN201811544988 A CN 201811544988A CN 109631714 A CN109631714 A CN 109631714A
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- Prior art keywords
- hole
- checked
- machined surface
- position degree
- detection method
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
Abstract
The invention discloses a kind of porous series position degree detection methods, first under the conditions of same machining benchmark molding multiple machined surfaces part, the hole group of each machined surface is individually detected, the machining benchmark that the Kong Zuyu corresponds to machined surface is not identical；Then the diameter of the hole group of each machined surface is detected；Secondly, at least one machining feature is selected to prepare the position detecting tool for detecting the processing face group according to the positioning mechanism of selection as positioning mechanism on each machined surface；Finally the position detecting tool of preparation is fitted on corresponding positioning mechanism, the hole group of the machined surface is detected.Multiple machined surfaces are carried out decomposition detection by this method, are solved the problems, such as the measurement of remote multiple machined surfaces, are improved detection efficiency.
Description
Technical field
The present invention relates to field of measuring technique, specially a kind of porous series position degree detection method.
Background technique
At present on engine crankcase class part, multiple installation sides are commonly present, multiple hole system is distributed on each installation side,
Hole count is more, and required precision is high, is structurally characterized in that each installation side space length is larger.The position degree of this some holes is detected and commented
Valence method generallys use three coordinates and is detected, the heavy workload of detection, is limited by three coordinate strokes and design of part, hole location
Degree of setting detection difficulty is big, has become the bottleneck in production process using three coordinate measurements to these hole locations.
Summary of the invention
Aiming at the problems existing in the prior art, the present invention provides a kind of porous series position degree method of determination and evaluation, is protecting
Under the premise of demonstrate,proving measurement accuracy and meeting production scene testing requirements, detection efficiency is improved.
The present invention is to be achieved through the following technical solutions:
A kind of porous series position degree detection method, includes the following steps；
Step 1, with the part of the molding multiple machined surfaces of same machining benchmark, the hole group of each machined surface is carried out independent
Detection, Kong Zuzhong include at least one gaging hole to be checked, the machining benchmark of the hole group and the machining benchmark of corresponding machined surface not phase
Together；
Step 2, the diameter of each of the hole group of each machined surface gaging hole to be checked is detected；
Step 3, select at least one machining feature as positioning mechanism on each machined surface, according to the localization machine of selection
Structure prepares the position detecting tool for detecting the processing face group；
Step 4, the position detecting tool prepared by step 3 is fitted on corresponding positioning mechanism, to the hole group of the machined surface
Each of the position degree of gaging hole to be checked detected.
Optionally, in step 2 using the diameter of each gaging hole to be checked in slide calliper rule, feeler gauge or inside dial indicator device to hole group
It measures.
Optionally, it is measured when the diameter tolerance of gaging hole to be checked is more than or equal to 0.1mm using slide calliper rule or feeler gauge.
Optionally, it is measured when the diameter tolerance of gaging hole to be checked is less than 0.1mm using inside dial indicator.
Optionally, in step 2, when each of hole group gaging hole to be checked meets the requirements, then step 3 is carried out, when hole group
In any one gaging hole to be checked it is undesirable, then the part is undesirable, termination detection.
Optionally, positioning mechanism described in step 3 is at least one of boss, groove or the seam allowance on the machined surface.
Optionally, when the positioning mechanism that machined surface can not select, in machined surface preparation process benchmark, with preparation
Technological datum as positioning mechanism, prepare the position detecting tool of the processing face group.
Optionally, be provided with the installing mechanism to match with positioning mechanism on the position detecting tool, and with the processing
The corresponding detection hole of face group and test pin.
Optionally, the diameter of the test pin is that the minimal tolerance diameter of gaging hole to be checked subtracts the position degree public affairs of gaging hole to be checked
Difference.
Optionally, the detection method of the position detecting tool is as follows；
The installing mechanism of position detecting tool is fitted on the positioning mechanism of corresponding machined surface, then test pin is inserted into one by one
In the detection hole of same diameter, when test pin can pass through detection hole and gaging hole to be checked simultaneously, the position degree of the gaging hole to be checked
It meets the requirements.
Compared with prior art, the invention has the following beneficial technical effects:
A kind of porous series position degree detection method provided by the invention, according to the design feature of part, by same processing base
Molding multiple machined surfaces are individually detected under the conditions of standard, then prepare individual position detecting tool according to each machined surface,
The hole location to be detected of the machined surface is measured using the position detecting tool of preparation.This method decomposes multiple machined surfaces
Detection solves the problems, such as the measurement of remote multiple machined surfaces, improves detection efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of engine crankcase of the embodiment of the present invention；
Fig. 2 is the position degree detection schematic diagram of the first mounting surface hole of engine crankcase group；
Fig. 3 is the position degree detection schematic diagram of the first and second mounting surface hole of engine crankcase group；
Fig. 4 is the position degree detection schematic diagram of the first, second, and third mounting surface hole of engine crankcase group；
Fig. 5 is the position degree detection schematic diagram of the first, second, third and fourth mounting surface hole of engine crankcase group.
In figure: C23, first position degree cubing；C23-1, the first detection bolt；C24, the third place degree cubing；C24-1,
Third detects bolt；C25, the 4th position detecting tool；C25-1, the 4th detection bolt；C26, second position degree cubing；C26-1,
Second detection bolt；
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings, described to be explanation of the invention rather than limit
It is fixed.
A kind of porous series position degree method of determination and evaluation, this method are mainly used in the position in multiple holes on Same Part
Degree measures, and during processing the part, processes first under same base condition to multiple machined surfaces of part,
Then the hole on each machined surface is processed using punch device, since machined surface and hole use different benchmark to process,
Therefore it needs to need to carry out position degree to the hole on each machined surface to detect.
The evaluation method mainly includes the following steps that；
Step 1, under the conditions of same machining benchmark molding multiple machined surfaces part, to each of each machined surface to
Detection hole carries out diameter detection, and gaging hole to be checked and the corresponding machined surface machining benchmark used be not identical；
It is to be understood that having carried out multi-panel processing under the conditions of same machining benchmark to part, having machined on each face
Multiple holes, multiple holes include that multiple diameters are identical or identical hole, carry out diameter detection to each hole of each machined surface,
The identical multiple Kong Weiyi holes group of diameter.
For example, then processing multiple holes on each machined surface using drilling machine, both using the multiple machined surfaces of lathe process
Machined surface and hole complete the process under different two machining benchmarks.
In measurement process, the diameter tolerance in hole is greater than or equal to 0.1mm, then is surveyed using corresponding feeler gauge or slide calliper rule
Amount, when the diameter tolerance in hole is less than 0.1mm, then using inside dial indicator measurement.
Each machined surface is divided into a detection unit by step 2.
Since multiple machined surface is completed under same machining benchmark, guarantee the accuracy between multiple machined surfaces, therefore
It can solve and multiple processing face groups are detected under same benchmark using each machined surface as an independent detection faces
When, the inadequate problem of existing measuring device operating difficulties, range, or the big and structure using detection tool structure size when cubing measurement
Complicated problem.
Step 3, the selective positioning mechanism on each machined surface, according to the positioning mechanism of selection, preparation detects the processing
The position detecting tool of face gaging hole to be checked.
It is to be understood that being generally also machined with other add in addition to the hole for needing to process on machined surface in machining
Work feature, such as round seam allowance, boss or groove, selecting above at least one machining feature is positioning mechanism, and is added refering to this
The technical drawing in work face, using the machining feature selected as positioning mechanism, the position degree inspection of preparation detection machined surface gaging hole to be checked
Tool.
Be provided with the detection hole to match with the gaging hole to be checked of the machined surface on the position detecting tool, detection hole with it is corresponding to
The diameter of detection hole and position are all the same, which is fitted on positioning mechanism, to the gaging hole to be checked of the machined surface
It is detected, further includes the detection bolt for detection, the diameter for detecting the diameter and gaging hole to be checked of bolt matches.
When the machining feature that the machined surface not can choose, then need in the process of part preparation process benchmark,
A benchmark is processed in some position of the machined surface, which can be square boss or round seam allowance.
Step 5, the position detecting tool for preparing step 4 are fitted on the positioning mechanism that step 3 selects, to the machined surface
Gaging hole to be checked carries out position degree detection.
In position degree detection process, it will test bolt and be inserted into from the detection hole of position detecting tool, when detection bolt energy
When enough gaging holes to be checked on machined surface, then the position of the gaging hole to be checked meets the requirements, when detection bolt cannot pass through processing
When gaging hole to be checked on face, then the position of the gaging hole to be checked is undesirable.
Step 6 repeats step 3 and 4 steps, until completing the position degree detection of the gaging hole to be checked on each machined surface.
Embodiment 1
Below by taking a kind of engine crankcase part as an example, to a kind of porous series position degree detection method provided by the invention into
Row detailed description.
As shown in Figure 1, the casing part includes the first handset casket, the second handset casket and third handset casket from left to right, three
A sub- casing head and the tail welding fabrication, each handset casket are hollow structure, and both ends are provided with coaxial round seam allowance, and three
The seam allowance of handset casket is coaxial, the round seam allowance connection of two neighboring casing.After three sub- casing welding fabrications, formed from left to right
Four seam allowances, each seam allowance are a mounting surface, respectively the first mounting surface, the second mounting surface, third mounting surface and the 4th
Mounting surface.
Due to that can be deformed after handset casket welding, each mounting surface is needed to need to carry out turning essence after welding
Processing, when processing, on the basis of the end of the first handset casket, both on the basis of the first mounting surface, process respectively the second mounting surface,
Then third mounting surface and the 4th mounting surface are processed the hole on each mounting surface using drilling machine.
The porous series position degree detection method is for detecting the position in hole on each mounting surface.
Step 1, it is detected using diameter of the measurer to the gaging hole to be checked on the first mounting surface.
It is measured when the diameter tolerance of gaging hole to be checked is greater than or equal to 0.1mm using slide calliper rule or feeler gauge；It is straight when gaging hole to be checked
Diameter tolerance is less than 0.1mm and is measured using inside dial indicator.
Step 2, using the seam allowance on the first mounting surface as location structure, the position detecting tool of gaging hole to be checked is prepared, the position
Spending cubing includes the positioning column being fitted in seam allowance, annular convex platform is arranged in the end of positioning column, the setting and first on boss
The detection hole that gaging hole to be checked matches on mounting surface, the quantity and diameter of the detection hole are identical as the hole on mounting surface, also wrap
Include detection bolt.
Step 3, the position detecting tool of preparation is mounted on the seam allowance of the first mounting surface, then using detection bolt to every
A gaging hole to be checked measures, when detection hole and gaging hole to be checked can be sequentially passed through by detecting bolt, then the position of the gaging hole to be checked
It sets and meets the requirements, when detection bolt cannot pass through the gaging hole to be checked on machined surface, then the position of the gaging hole to be checked, which is not met, wants
It asks.
Step 4, step 1-3 is repeated, on the hole on the second mounting surface, the hole and the 4th mounting surface on third mounting surface
Gaging hole to be checked is successively detected.
The bore dia and testing requirements of specific each mounting surface are refering to table 1.
1 detection project of table and testing requirements
Each mounting surface aperture size is detected by 2 requirement of table
2 aperture size testing requirements of table
1, the first mounting surface Ф A group hole position detection method
According to table 1, the diameter in Ф A group hole is on the first mounting surfaceQuantity be 102 due to quantity compared with
More, tolerance is greater than 0.1mm, therefore whether meets design requirement using the diameter measurement that feeler gauge or slide calliper rule carry out hole.
According to table 1, Ф A group hole is 0.1mm, the first mounting surface Ф A group hole relative to benchmark A, B, location of C degree tolerance
Position degree detection is carried out using first position degree measuring tool C23, first position degree measuring tool C23 is also equipped with the first detection bolt C23-
1, a diameter of Ф 7.9mm.
As shown in Fig. 2, first position degree is surveyed by first position degree measuring tool C23 on the seam allowance for being mounted on the first mounting surface
The detection hole for being provided on tool C23 and matching to gaging hole, it is complete by 0 ° of hole on 0 ° of bolt insertion part on position detecting tool
At the positioning of first position degree measuring tool C23, which is circle, thus can only axially position, so 0 ° of bolt examines position degree
Tool carries out radial positioning.Then using first detection bolt C23-1 to each gaging hole to be checked on the degree measuring tool C23 of first position into
Row measurement, if the first detection bolt C23-1 can sequentially pass through detection hole on the degree measuring tool C23 of first position and machined surface
Gaging hole to be checked, then gaging hole to be checked meets design requirement, on the contrary then undesirable.
2, the second mounting surface Ф B group hole position detection method
According to table 1, the diameter in Ф B group hole is on the second mounting surfaceQuantity is 70, and tolerance is greater than
Whether 0.1mm meets design requirement using the diameter that feeler gauge measures hole.
As shown in figure 3, the B group hole Ф is 0.2mm relative to benchmark A, B, location of C degree tolerance；Second mounting surface Ф B group hole makes
Position degree detection is carried out with second position degree cubing C26, the diameter of the second detection bolt C26-1 is Ф 8.8mm, second position degree
The measurement method of cubing C26 is identical as the method for first position degree measuring tool C23.
3, third mounting surface Ф C and Ф D group hole position detection method
It according to table 1, include Ф C group hole and Ф D group hole on third mounting surface, the diameter in Ф C group hole isNumber
Amount is 96, is detected using feeler gauge.
The diameter in Ф D group hole isWhether quantity is 4, accorded with using the diameter that inside dial indicator measures hole
Close design requirement.
As shown in figure 4, the C group hole Ф is 0.2mm relative to benchmark A, B, location of C degree tolerance；The D group hole Ф relative to benchmark A,
B, location of C degree tolerance is 0.1mm；
The third mounting surface D group hole Ф C and Ф carries out position degree detection, position degree inspection using the third place degree cubing C24
Two detection bolts are arranged in tool, and the diameter that third detects bolt C26-1 is Ф 5.8mm, and the diameter of another detection bolt is Ф
4.9mm.The measurement method of the third place degree cubing C24 is identical as the method for first position degree measuring tool C23.
4, the position degree detection method in the 4th two group holes mounting surface Ф E and Ф F
It according to table 1, include Ф E group hole and Ф F group hole on the 4th mounting surface, the diameter in Ф E group hole is
Quantity is 120, is detected using inside dial indicator.
The diameter in Ф F group hole isWhether quantity is 6, accorded with using the diameter that inside dial indicator measures hole
Close design requirement.
As shown in figure 5, the E group hole Ф is 0.1mm relative to benchmark A, B, location of C degree tolerance；The E group hole Ф relative to benchmark A,
B, location of C degree tolerance is 0.015mm；
The 4th mounting surface F group hole Ф E and Ф carries out position degree detection using the 4th position detecting tool C25, which is arranged
The diameter of two detection bolts, the 4th detection bolt C25-1 is Ф 6.9mm, another detection bolt is Ф 4.9mm.4th
The measurement method of degree of setting cubing C25 is identical as the method for first position degree measuring tool C23.
The above content is merely illustrative of the invention's technical idea, and this does not limit the scope of protection of the present invention, all to press
According to technical idea proposed by the present invention, any changes made on the basis of the technical scheme each falls within claims of the present invention
Protection scope within.
Claims (10)
1. a kind of porous series position degree detection method, which is characterized in that include the following steps；
Step 1, with the part of the molding multiple machined surfaces of same machining benchmark, the hole group of each machined surface is individually examined
It surveys, Kong Zuzhong includes at least one gaging hole to be checked, and the machining benchmark and the machining benchmark of corresponding machined surface of the hole group be not identical；
Step 2, the diameter of each of the hole group of each machined surface gaging hole to be checked is detected；
Step 3, select at least one machining feature as positioning mechanism on each machined surface, according to the positioning mechanism of selection,
Prepare the position detecting tool for detecting the processing face group；
Step 4, the position detecting tool prepared by step 3 is fitted on corresponding positioning mechanism, to the Kong Zuzhong's of the machined surface
The position degree of each gaging hole to be checked is detected.
2. porous series position degree detection method according to claim 1, which is characterized in that use slide calliper rule, feeler gauge in step 2
Or the diameter of each gaging hole to be checked measures in inside dial indicator device to hole group.
3. porous series position degree detection method according to claim 2, which is characterized in that when the diameter tolerance of gaging hole to be checked is big
It is measured in being equal to 0.1mm using slide calliper rule or feeler gauge.
4. porous series position degree detection method according to claim 2, which is characterized in that when the diameter tolerance of gaging hole to be checked is small
It is measured in 0.1mm using inside dial indicator.
5. porous series position degree detection method according to claim 1, which is characterized in that each as Kong Zuzhong in step 2
A gaging hole to be checked meets the requirements, then carries out step 3, when any one gaging hole to be checked of Kong Zuzhong is undesirable, then this zero
Part is undesirable, termination detection.
6. porous series position degree detection method according to claim 1, which is characterized in that positioning mechanism described in step 3 is
At least one of boss, groove or seam allowance on the machined surface.
7. porous series position degree detection method according to claim 6, which is characterized in that can not selected when machined surface
When positioning mechanism, in machined surface preparation process benchmark, with the technological datum of preparation as positioning mechanism, the processing face is prepared
The position detecting tool of group.
8. porous series position degree detection method according to claim 6, which is characterized in that be provided on the position detecting tool
The installing mechanism to match with positioning mechanism, and detection hole corresponding with the processing face group and test pin.
9. porous series position degree detection method according to claim 8, which is characterized in that the diameter of the test pin is to be checked
The minimal tolerance diameter of gaging hole subtracts the Tolerance of Degree of position of gaging hole to be checked.
10. porous series position degree detection method according to claim 8, which is characterized in that the detection of the position detecting tool
Method is as follows；
The installing mechanism of position detecting tool is fitted on the positioning mechanism of corresponding machined surface, then test pin is inserted into same one by one
In the detection hole of diameter, when test pin can pass through detection hole and gaging hole to be checked simultaneously, the position degree of the gaging hole to be checked meets
It is required that.
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| CN201811544988.2A CN109631714A (en) | 2018-12-17 | 2018-12-17 | A kind of porous series position degree detection method |
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ID=66074754
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110315276A (en) * | 2019-07-09 | 2019-10-11 | 中国航发哈尔滨东安发动机有限公司 | A kind of weak rigid casing repair method of aviation |
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