CN110487209B - Method and device for selecting adapter attached to mortise working face - Google Patents
Method and device for selecting adapter attached to mortise working face Download PDFInfo
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- CN110487209B CN110487209B CN201910824226.6A CN201910824226A CN110487209B CN 110487209 B CN110487209 B CN 110487209B CN 201910824226 A CN201910824226 A CN 201910824226A CN 110487209 B CN110487209 B CN 110487209B
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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
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
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Abstract
The invention discloses a method for selecting an adapter attached to a working surface of a mortise, which comprises the following steps: s1: presetting all adapter theoretical graphs; s2: carrying out enlarged projection on the part mortises, and storing the part mortises; s3: connecting and comparing the projection of the part mortise with all adapter theoretical graphs, and selecting one adapter theoretical graph which is attached to the mortise working surface as a target graph; s4: scanning all the adapter profiles, and selecting the adapter profile closest to the target pattern as the target profile. S5: the adapter closest to the target profile is selected. The adapter with the smallest fit error with the mortise working face can be selected by the method, and the adapter is connected with the part mortise and then measured, so that the fit error of the adapter and the mortise working face can be reduced. The invention also discloses a device for selecting the adapter attached to the mortise working surface, and the adapter with the smallest fit error with the mortise working surface can be automatically selected by using the device.
Description
Technical Field
The invention relates to the technical field of mortise measurement, in particular to a method and a device for selecting an adapter attached to a mortise working surface.
Background
The turbine disc is a key hot end part of an aircraft engine, the working environment is severe, the turbine disc needs to operate at a very high rotating speed in a high-temperature and high-pressure environment, the turbine disc and the blades are connected through a mortise longitudinal tree structure, and the requirement on the precision of the mortise is very high. At present, the turbine disk fir tree-shaped mortise is detected by adopting a comprehensive measuring tool and a meter part and indirectly detecting the center distance M of the mortise, the offset distance X of the symmetrical center of the mortise inclined relative to the center of the disk and the angle alpha by means of an adapter.
The adapter in the current measuring tool scheme is designed according to the maximum entity of a part mortise and is matched with a certain gap. Before measurement, the tenon of the adapter is inserted into the mortise of the part, the tenon working face is used for positioning and tensioning, and the measurement of each measurement element is converted to the adapter for measurement. For example, when measuring the center distance M, the center distance is converted into the rear end face of the adapter, and the measurement device now measures the center distance as a total value M1 of the center distance and the adapter, theoretically, the center distance M is M1-L. Because the adapter is in clearance with the part mortise, the actual center distance M is M1-L + A, wherein A is the fitting error and is the theoretical clearance value calculated when the adapter is tightened when the part mortise is minimum in entity. Other elements are measured in a similar manner.
However, with the continuous improvement of the accuracy of the mortise of the part, the method of measuring by adopting the theoretical clearance value is more general; meanwhile, the molded surface of the adapter is not checked, the qualified molded surface cannot be ensured only by checking the rod span of the adapter, and the fitting error A cannot be simply equal to the theoretical clearance value, so that the measuring method cannot meet the production requirement.
In summary, a problem to be solved by those skilled in the art is how to select an adapter with the smallest fitting error with the mortise working surface to reduce the fitting error between the adapter and the mortise working surface.
Disclosure of Invention
Accordingly, the present invention is directed to a method and apparatus for selecting an adapter to be attached to a working surface of a mortise, which can select an adapter having a minimum fitting error with the working surface of the mortise to reduce the fitting error between the adapter and the working surface of the mortise.
In order to achieve the above purpose, the invention provides the following technical scheme:
a method for selecting an adapter for mating with a mortise work surface, comprising:
s1: presetting all adapter theoretical graphs;
s2: carrying out enlarged projection on the part mortises, and storing the part mortises;
s3: connecting and comparing the part tongue-and-groove projection with all adapter theoretical graphs, and selecting one adapter theoretical graph which is attached to a tongue-and-groove working surface as a target graph;
s4: scanning all the adapter profiles, and selecting the adapter profile closest to the target graph as a target profile;
s5: and selecting the adapter which is closest to the target contour.
Preferably, the S1 includes:
and carrying out figure numbering on all the adapter theoretical figures.
Preferably, the S4 includes:
and carrying out contour numbering on all adapter contours, and corresponding the adapter theoretical graphics to the graphics number and the contour number which are closest to the adapter contour one by one.
Preferably, the S5 includes:
and numbering all the adapters, recording all adapter numbers, and corresponding all the adapter numbers to the contour numbers closest to the adapter numbers in a one-to-one manner.
Preferably, S5 includes:
and selecting the adapter number closest to the contour number of the target contour.
Preferably, S1 is preceded by:
and detecting the span length of each adapter.
An apparatus for selecting an adapter for mating with a mortise work surface, comprising:
the projection device is used for carrying out enlarged projection on the part mortises, the scanner is used for scanning all the adapter profiles, and the terminal is used for receiving and storing the part mortises and receiving the part mortises;
all adapter theoretical graphs are preset in the terminal, so that the received part tongue-and-groove projection is connected and compared with all stored adapter theoretical graphs, one adapter theoretical graph which is attached to a tongue-and-groove working surface is selected as a target graph, and a received adapter profile which is closest to the target graph is selected as a target profile, so that an adapter which is closest to the target profile is selected conveniently;
the projection device and the scanner are in signal connection with the terminal.
Preferably, the terminal is a computer.
The invention provides a method for selecting an adapter attached to a working surface of a mortise, which comprises the following steps:
s1: presetting all adapter theoretical graphs;
s2: carrying out enlarged projection on the part mortises, and storing the part mortises;
s3: connecting and comparing the projection of the part mortise with all adapter theoretical graphs, and selecting one adapter theoretical graph which is attached to the mortise working surface as a target graph;
s4: scanning all the adapter profiles, and selecting the adapter profile closest to the target pattern as the target profile.
S5: the adapter closest to the target profile is selected.
After the part mortises are enlarged and projected, the part mortises are stored for projection, the part mortises are connected and compared with all adaptor theoretical graphs, the connection is more than the connection between two-dimensional graphs, the fir tree structures of the adaptors are connected into the mortises, the working surfaces of the part mortises and the enlarged projection can be selected to be attached, namely, the adaptor theoretical graph with the minimum error is taken as a target graph, the outlines of all the adaptors are scanned, the outlines of all the adaptors are compared with the target graph, the adaptor outline closest to the target graph can be selected as the target outline, and then the adaptor closest to the target outline is selected. Compared with the prior art, the method for reducing the mortise center distance measurement error can select the adapter with the smallest mortise working face fit error, and the adapter is connected to the part mortise and then measured, so that the fit error of the adapter and the mortise working face can be reduced.
The invention also provides a device for selecting the adapter attached to the mortise working surface, and the adapter with the smallest fit error with the mortise working surface can be automatically selected by using the device.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a flow chart of a method for selecting an adapter to be attached to a working surface of a mortise provided by the present invention.
Detailed Description
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.
The core of the invention is to provide a method and a device for selecting the adapter attached to the mortise working surface, and the adapter with the minimum matching error with the mortise working surface can be selected by using the method and the device so as to reduce the matching error of the adapter and the mortise working surface.
Referring to fig. 1, fig. 1 is a flowchart illustrating a method for selecting an adapter attached to a working surface of a mortise according to the present invention.
A method for selecting an adapter for mating with a mortise work surface, comprising:
s1: presetting all adapter theoretical graphs;
s2: carrying out enlarged projection on the part mortises, and storing the part mortises;
s3: connecting and comparing the projection of the part mortise with all adapter theoretical graphs, and selecting one adapter theoretical graph which is attached to the mortise working surface as a target graph;
s4: scanning all the adapter profiles, and selecting the adapter profile closest to the target graph as a target profile;
s5: the adapter closest to the target profile is selected.
It should be noted that the adapter theoretical pattern may be a pattern used in actual production of the adapter, and the parameters of the patterns are all the closest to the parameters of the actually produced adapter, so that the adapter theoretical pattern with the smallest error after matching and connecting with the mortise working surface is selected.
The projection of the part mortise after the enlarged projection of the part mortise is a two-dimensional graph, the stored adaptor theoretical graph is also the two-dimensional graph, and the two-dimensional graph of the mortise and the two-dimensional graphs of all the adaptors are only collected because all the cross sections in the thickness direction of the mortise are consistent in shape and all the cross sections in the thickness direction of the adaptors are consistent in shape.
Because the projection of the part mortise is provided with a groove, the adapter theoretical graph is provided with a bulge inserted into the groove, the projection of the part mortise is connected with all the adapter theoretical graphs, the bulge of the adapter theoretical graph is inserted into the groove projected by the mortise, and one adapter theoretical graph attached to the working surface of the mortise is selected as a target graph.
After the part mortises are enlarged and projected, the part mortises are stored for projection, the part mortises are connected and compared with all adaptor theoretical graphs, the connection is more than the connection between two-dimensional graphs, the fir tree structures of the adaptors are connected into the mortises, the working surfaces of the part mortises and the enlarged projection can be selected to be attached, namely, the adaptor theoretical graph with the minimum error is taken as a target graph, the outlines of all the adaptors are scanned, the outlines of all the adaptors are compared with the target graph, the adaptor outline closest to the target graph can be selected as the target outline, and then the adaptor closest to the target outline is selected. Compared with the prior art, the method for reducing the mortise center distance measurement error can select the adapter with the smallest mortise working face fit error, and the adapter is connected to the part mortise and then measured, so that the fit error of the adapter and the mortise working face can be reduced.
In addition to the above embodiment, S1 further preferably includes: all adapter theory graphs are numbered graphically. The numbers of all adapter theoretical graphs can be numbered in the forms of 1, 2, 3 and 4 … …, can also be numbered in the form of A, B, C, D … …, or other similar numbering forms, the graph numbers of all adapter theoretical graphs can be convenient for selection, and the graph numbers can correspond to the parameters of the corresponding theoretical graphs.
In addition to the above embodiment, S4 further preferably includes: and carrying out contour numbering on all adapter contours, and corresponding the adapter theoretical graphics to the graphics number and contour number closest to the adapter contour one by one. It should be noted that the profiles of all scanned adapters are numbered in a similar manner to the adapter theoretical patterns, but the numbering is different, for example, if the adapter patterns are numbered in the forms of 1, 2, 3 and 4 … …, the profile numbers are numbered in the form of A, B, C, D … …, and the pattern numbers and profile numbers of all adapter theoretical patterns closest to the adapter profiles are in one-to-one correspondence, which can facilitate the subsequent selection.
In addition to the above embodiment, S5 further preferably includes: and numbering all the adapters, recording all adapter numbers, and corresponding all the adapter numbers to the contour numbers closest to the adapter numbers one by one. The adapter numbering format is similar to the adapter theoretical pattern numbering format and the adapter profile numbering format, but the numbering is different. For example, if the adapter pattern is numbered as 1, 2, 3, 4 … … and the profile number is numbered as A, B, C, D … …, the adapters are numbered as i, ii, iii, iv … …, and all adapters are associated with the profile number closest to the adapter profile for easy subsequent selection.
In addition to the above embodiment, S5 further preferably includes: and selecting the adapter number closest to the contour number of the target contour. After the numbers of the target contour and the target graph are determined, corresponding selection is carried out according to the adapter number corresponding to the target contour number, and parameter correspondence is not needed.
In addition to the above embodiments, as a further preferable configuration, S1 further includes: the span length of each adapter is detected. The cross-rod distance of each adapter is detected, so that the high precision of the adapters can be ensured, and the adapters with the highest precision can be screened. In addition, an amplification projection method can be adopted to carry out amplification projection inspection on the adapter, so that the precision of the adapter can be further ensured.
In addition to the above method for picking adapters to be adhered to a working surface of a mortise, the present invention provides an apparatus for picking adapters to be adhered to a working surface of a mortise, comprising:
the projection device is used for carrying out enlarged projection on the part mortises, the scanner is used for scanning the outlines of all the adapters, and the terminal is used for receiving and storing the projection of the part mortises and receiving the projection of the part mortises;
all adapter theoretical graphs are preset in the terminal, so that the received part tongue-and-groove projection is connected and compared with all stored adapter theoretical graphs, one adapter theoretical graph which is attached to a tongue-and-groove working surface is selected as a target graph, and a received adapter profile which is closest to the target graph is selected as a target profile, so that an adapter which is closest to the target profile can be selected conveniently;
the projection device and the scanner are in signal connection with the terminal.
The projection device can enlarge and project the mortise of the part, convert the plane projection of the mortise of the part into a two-dimensional graph, send the plane projection graph to the terminal, the terminal stores the plane projection graph, all adapter theoretical graphs are stored in the terminal in advance, the terminal can connect and compare the adapter theoretical graphs with the mortise projection, one adapter theoretical graph attached to the working face of the mortise is selected as a target graph, after the terminal receives the adapter profiles of all adapters scanned by the scanner, the target graph is compared with the adapter profiles, then the adapter profile closest to the target graph parameter is selected, and then the adapters can be automatically selected according to the adapter profiles, so that the automatic selection effect is achieved.
The device for selecting the adapter attached to the mortise working face provided by the application can automatically select the adapter with the smallest fit error with the mortise working face by using the device.
In addition to the above embodiments, the terminal is preferably a computer. The selection steps can be completed by a program arranged in the computer, and the computer is convenient to set and simple to operate and control.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The method and apparatus for selecting adapters for mating with a mortise working surface according to the present invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (7)
1. A method for selecting an adapter for mating with a mortise work surface, comprising:
s1: presetting all adapter theoretical graphs;
s2: carrying out enlarged projection on the part mortises, and storing the part mortises;
s3: connecting and comparing the part tongue-and-groove projection with all adapter theoretical graphs, and selecting one adapter theoretical graph which is attached to a tongue-and-groove working surface as a target graph;
s4: scanning all the adapter profiles, and selecting the adapter profile closest to the target graph as a target profile;
s5: selecting the adapter closest to the target contour;
before S1, the method further includes:
and detecting the span length of each adapter, or carrying out magnified projection inspection on the adapters by adopting a magnified projection method.
2. The method for selecting an adapter to be fitted to a working surface of a mortise slot according to claim 1, wherein the S1 includes:
and carrying out figure numbering on all the adapter theoretical figures.
3. The method for selecting an adapter to be fitted to a working surface of a mortise according to claim 2, wherein the S4 includes:
and carrying out contour numbering on all adapter contours, and corresponding the graphic numbers of the adapter theoretical graphics to the contour numbers of the closest adapter contour one by one.
4. The method for selecting an adapter to be fitted to a working surface of a mortise according to claim 3, wherein the S5 includes:
and numbering all the adapters, recording all adapter numbers, and corresponding all the adapter numbers to the contour numbers closest to the adapter numbers in a one-to-one manner.
5. The method for selecting an adapter to be fitted to a working surface of a mortise according to claim 4, wherein S5 includes:
and selecting the adapter number closest to the contour number of the target contour.
6. An apparatus for selecting adapters for attachment to a work surface of a mortise comprising:
the projection device is used for carrying out enlarged projection on the part mortises, the scanner is used for scanning all the adapter profiles, and the terminal is used for receiving and storing the part mortises and projections and receiving the adapter profiles;
all adapter theoretical graphs are preset in the terminal, so that the received part tongue-and-groove projection is connected and compared with all stored adapter theoretical graphs, one adapter theoretical graph which is attached to a tongue-and-groove working surface is selected as a target graph, the adapter profile which is closest to the target graph is selected as a target profile, and the adapter which is closest to the target profile is selected;
the projection device and the scanner are in signal connection with the terminal.
7. The apparatus for selecting an adapter to be fitted to a working surface of a mortise slot according to claim 6, wherein the terminal is a computer.
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