CN114593704B - Method, device, equipment and medium for measuring curved surface part - Google Patents

Method, device, equipment and medium for measuring curved surface part Download PDF

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Publication number
CN114593704B
CN114593704B CN202011416203.0A CN202011416203A CN114593704B CN 114593704 B CN114593704 B CN 114593704B CN 202011416203 A CN202011416203 A CN 202011416203A CN 114593704 B CN114593704 B CN 114593704B
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point position
curved surface
theoretical point
coordinate system
theoretical
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CN114593704A (en
Inventor
王诗源
张伟忠
张磊
杜彬
周玲
王兆炜
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Shanghai Aircraft Manufacturing Co Ltd
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Shanghai Aircraft Manufacturing Co Ltd
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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
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/20—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring contours or curvatures, e.g. determining profile
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant

Abstract

The embodiment of the invention discloses a method, a device, equipment and a medium for measuring curved surface parts. The method comprises the following steps: in three-coordinate measurement, determining at least one theoretical point position of the curved surface part; establishing a first part coordinate system according to at least one theoretical point position, and measuring the curved surface part by utilizing the first part coordinate system to obtain a first actual point position corresponding to each theoretical point position; establishing a second part coordinate system according to the first actual measurement point position corresponding to each theoretical point position, and measuring the curved surface part by using the second part coordinate system to obtain a deviation value between the first actual measurement point position corresponding to each theoretical point position and the second actual measurement point position corresponding to each theoretical point; and if the maximum deviation value in the deviation values is smaller than the deviation threshold value, measuring the curved surface part based on the second part coordinate system. The invention improves the side accuracy of the curved surface part, reduces the dependence on auxiliary measurement tools and reduces the workload of technical preparation.

Description

Method, device, equipment and medium for measuring curved surface part
Technical Field
The embodiment of the invention relates to the technical field of part measurement, in particular to a method, a device, equipment and a medium for measuring a curved surface part.
Background
With the improvement of the manufacturing industry, irregularly curved parts are increasingly widely used. Such as a vehicle sunroof or turbine blade, etc.
At present, when measuring an irregular curved surface part, a measurer communicates with a process staff generally, a process machining reference of the curved surface part is determined, then a measurement plan is formulated according to the determined process machining reference, and three-coordinate measurement is carried out on the curved surface part according to the measurement plan.
When the plate is lifted or the process method (route) is changed, the process machining standard is changed, so that the curved surface part cannot be measured based on a preset measurement plan. At this time, the measuring staff is required to communicate with the process staff again to redefine the process processing standard, so that the workload of the measuring staff is increased.
Disclosure of Invention
The embodiment of the invention provides a method, a device, equipment and a medium for measuring a curved surface part, and provides a scheme capable of measuring the curved surface part without depending on a process machining reference, so that the side quantity accuracy of the curved surface part is improved, the dependence on auxiliary measuring tools is reduced, and the workload of technical preparation is reduced.
In a first aspect, an embodiment of the present invention provides a method for measuring a curved part, including:
in three-coordinate measurement, determining at least one theoretical point position of the curved surface part;
Establishing a first part coordinate system according to the at least one theoretical point position, and measuring the curved surface part by utilizing the first part coordinate system to obtain a first actual point position corresponding to each theoretical point position;
Establishing a second part coordinate system according to the first actual measurement point position corresponding to each theoretical point position, and measuring the curved surface part by utilizing the second part coordinate system to obtain a deviation value between the first actual measurement point position corresponding to each theoretical point position and the second actual measurement point position corresponding to each theoretical point position;
And if the maximum deviation value in the at least one deviation value is smaller than a deviation threshold value, measuring the curved surface part based on the second part coordinate system.
In a second aspect, an embodiment of the present invention further provides a measurement device for a curved surface part, including:
The first determining module is used for determining at least one theoretical point position of the curved surface part in three-coordinate measurement;
The first measuring module is used for establishing a first part coordinate system according to the at least one theoretical point position, and measuring the curved surface part by utilizing the first part coordinate system to obtain a first actual point position corresponding to each theoretical point position;
the second measurement module is used for establishing a second part coordinate system according to the first actual measurement point position corresponding to each theoretical point position, and measuring the curved surface part by utilizing the second part coordinate system to obtain a deviation value between the first actual measurement point position corresponding to each theoretical point position and the second actual measurement point position corresponding to each theoretical point position;
And the third measuring module is used for measuring the curved surface part based on the second part coordinate system if the maximum deviation value in the at least one deviation value is smaller than the deviation threshold value.
In a third aspect, an embodiment of the present invention further provides an electronic device, including:
one or more processors;
Storage means for storing one or more programs,
When the one or more programs are executed by the one or more processors, the one or more processors implement the method for measuring a curved part according to any of the embodiments of the present invention.
In a fourth aspect, an embodiment of the present invention further provides a computer readable storage medium, where a computer program is stored, where the program when executed by a processor implements the method for measuring a curved part according to any one of the embodiments of the present invention.
The technical scheme disclosed by the embodiment of the invention has the following beneficial effects:
Determining at least one theoretical point position of the curved surface part in three-coordinate measurement, establishing a first part coordinate system according to the at least one theoretical point position, measuring the curved surface part by using the first part coordinate system to obtain a first actually measured position point corresponding to each theoretical point position, establishing a second part coordinate system according to the first actual measured point position corresponding to each theoretical point position, measuring the curved surface part by using the second part coordinate system to obtain a deviation value between the first actual measured point position corresponding to each theoretical point position and the second actual measured point position corresponding to each theoretical point position, and measuring the curved surface part based on the second part coordinate system if the maximum deviation value in the at least one deviation value is smaller than a deviation threshold value. Therefore, the measurement of the curved surface part is realized based on at least one theoretical point position of the curved surface part, so that a scheme for measuring the curved surface part without depending on a process machining reference is provided, the side quantity accuracy of the curved surface part is improved, the dependence on auxiliary measuring tools is reduced, and the workload of technical preparation is reduced.
Drawings
Fig. 1 is a flow chart of a method for measuring a curved surface part according to a first embodiment of the present invention;
fig. 2 is a flow chart of a method for measuring curved surface parts according to a second embodiment of the present invention;
Fig. 3 is a flow chart of a method for measuring a curved surface part according to a third embodiment of the present invention;
Fig. 4 is a schematic diagram of a specific example of a measurement method of a curved surface part according to a fourth embodiment of the present invention;
fig. 5 is a schematic structural diagram of a measuring device for curved surface parts according to a fifth embodiment of the present invention;
fig. 6 is a schematic structural diagram of an electronic device according to a sixth embodiment of the present invention.
Detailed Description
Embodiments of the present invention will be described in further detail below with reference to the drawings and examples. It should be understood that the particular embodiments described herein are illustrative only and are not limiting of embodiments of the invention. It should be further noted that, for convenience of description, only some, but not all of the structures related to the embodiments of the present invention are shown in the drawings.
The following describes in detail a method, an apparatus, a device and a medium for measuring curved surface parts according to an embodiment of the present invention with reference to the accompanying drawings.
Example 1
Fig. 1 is a flow chart of a method for measuring a curved surface part according to an embodiment of the invention. The embodiment is applicable to a scenario of three-coordinate measurement of an irregularly curved part, and the method can be performed by a curved part measuring device, which can be composed of hardware and/or software and can be integrated in an electronic device. In the embodiment of the invention, the electronic device is preferably a three-coordinate measuring machine. As shown in fig. 1, the method specifically includes the following steps:
s101, determining at least one theoretical point position of the curved surface part in three-coordinate measurement.
In the embodiment of the invention, the curved surface part refers to a part with or without regular reference characteristics such as a large plane, a large round hole and the like for constructing a part coordinate system.
Wherein at least one theoretical point location comprises different degrees of freedom of the curved surface part in space. In general, the degrees of freedom of the curved part in space may be 6 degrees of freedom, specifically: the movement degree of automation along the X axis, Y axis and Z axis and the rotation degree of freedom around the X axis, Y axis and Z axis. Of course, other numbers of degrees of freedom are possible, which are not particularly limited here.
Before executing S101, whether the curved surface part clamped on the measurement platform has the rule reference feature can be manually identified by a user. The measuring platform is a measuring platform on a three-coordinate measuring machine.
Specifically, determining whether the curved surface part has the rule reference feature may be implemented by the following exemplary manner:
Mode one:
The user visually observes whether the curved surface part has the regular reference feature.
Mode two:
the user determines whether the part has a rule feature based on the data provided by the three-dimensional model.
Alternatively, when it is determined that the curved part does not have the regular reference feature, the user may select an irregular reference that corresponds to the curved part from the list of irregular references displayed on the three-coordinate measuring machine. Further, the three-coordinate measuring machine automatically determines at least one theoretical point location of the curved surface part based on the irregular benchmarks selected by the user. It should be noted that, in the embodiment of the present invention, when it is determined that the curved surface part does not have the regular reference feature, the number of theoretical point positions determined based on the selected irregular reference needs to ensure 6 degrees of freedom for controlling the curved surface part. The irregular reference list may be pre-configured in the three-coordinate measuring machine, and may be updated according to actual needs. It should be noted that, the user in this embodiment specifically refers to a measuring person who measures the curved surface part.
When the curved surface part is determined to have the rule reference feature, the three-coordinate measuring machine can determine at least one theoretical point position of other degrees of freedom of the curved surface part according to the rule reference feature, so that the rule reference feature and the determined theoretical point position can ensure 6 degrees of freedom of the controlled curved surface part.
Because the part coordinate system is the most important link in the curved surface part measurement process. Therefore, in order to establish the relative positional relationship between the three-coordinate measuring machine and the curved surface part based on the part coordinate system, at least one theoretical point position of the curved surface part is determined in the present embodiment, and preferably 6 theoretical point coordinates corresponding to six degrees of freedom capable of ensuring control of the curved surface part are determined. For example, a first benchmark, typically 3 theoretical point coordinates are chosen; a second reference, usually 2 theoretical point coordinates are selected; in the third standard, 1 theoretical point coordinate is usually selected. The first reference, the second reference, and the third reference may refer to a first reference plane, a second reference plane, and a third reference plane.
Furthermore, in this embodiment, after determining at least one theoretical point coordinate of the curved surface part, the direction information of each theoretical point position may be determined, so as to lay a foundation for obtaining a target part coordinate system for measuring the curved surface part subsequently. The direction information of each theoretical point is the normal direction of the curved surface where each theoretical point is located.
S102, a first part coordinate system is established according to the at least one theoretical point position, and the curved surface part is measured by utilizing the first part coordinate system, so that a first actual point position corresponding to each theoretical point position is obtained.
Alternatively, the first part coordinate system may be established based on the right hand rule according to a theoretical point position belonging to the same direction among the at least one theoretical point position as the Z-axis. After the first part coordinate system is established, the three-coordinate measuring machine can measure the curved surface part by utilizing the first part coordinate system so as to obtain a first actual point position corresponding to each theoretical point position.
In the specific implementation, a measuring head can be controlled to sequentially move to each theoretical point position in a first part coordinate system according to the position of each theoretical point and the direction information of each theoretical point position by a three-coordinate measuring machine; when the measuring head moves to any one of the theoretical point positions, the three-coordinate measuring machine records the actual point position corresponding to the theoretical point position so as to obtain a first actual point position corresponding to each theoretical point position. In this embodiment, the measuring head is specifically referred to as a three-coordinate measuring head, because the electronic device is preferably a three-coordinate measuring machine.
For example, if the number of the at least one theoretical point position determined in S101 is 6, which are respectively the theoretical point position 1, the theoretical point position 2, the theoretical point position 3, the theoretical point position 4, the theoretical point position 5, and the theoretical point position 6, the first actual point position corresponding to each theoretical point position obtained in this step may be the first actual point position 1', the first actual point position 2', the first actual point position 3', the first actual point position 4', the first actual point position 5', and the first actual point position 6'. The theoretical point position 1 and the first actual point position 1 'are corresponding to each other, the theoretical point position 2 and the first actual point position 2' are corresponding to each other, the theoretical point position 3 and the first actual point position 3 'are corresponding to each other, the theoretical point position 4 and the first actual point position 4' are corresponding to each other, the theoretical point position 5 and the first actual point position 5 'are corresponding to each other, and the theoretical point position 6 and the first actual point position 6' are corresponding to each other.
It should be noted that, in the embodiment of the present invention, when the curved surface part does not have the rule reference feature, the establishment of the part coordinate system is realized according to the determined positions of at least two theoretical points; when the curved surface part has the rule reference feature, the establishment of the part coordinate system is realized according to the determined at least one theoretical point position and the rule reference feature.
And S103, establishing a second part coordinate system according to the first actual-point position corresponding to each theoretical point position, and measuring the curved surface part by using the second part coordinate system to obtain a deviation value between the first actual-point position corresponding to each theoretical point position and the second actual-point position corresponding to each theoretical point position.
Optionally, at least one first actual point position belonging to the same direction in the first actual point positions corresponding to each theoretical point position may be taken as a Z axis, and a second part coordinate system may be established based on a right-hand rule. After the second part coordinate system is established, the three-coordinate measuring machine can utilize the second part coordinate system to carry out second measurement on the curved surface part so as to obtain a deviation value between the first actual point position corresponding to each theoretical point position and the second actual point position corresponding to each theoretical point position.
In particular, the three-coordinate measuring machine can utilize a second part coordinate system to carry out second measurement on the curved surface part so as to obtain a second actual point position corresponding to each theoretical point position. And then, calculating a deviation value between the first actual measurement point position corresponding to each theoretical point position and the second actual measurement point position corresponding to each theoretical point position. For example, this can be achieved by:
S1, in the second part coordinate system, the measuring head is controlled to sequentially move to each theoretical point position according to the direction information of each theoretical point position.
S2, when the measuring head moves to any one of the theoretical point positions, recording the actual point position corresponding to the theoretical point position to obtain a second actual point position corresponding to each theoretical point position.
S3, determining a deviation value between the first actual measurement point position corresponding to each theoretical point position and the second actual measurement point position corresponding to each theoretical point position.
The theoretical point positions and the first actual point positions have a corresponding relation, so that when the second actual point positions corresponding to the theoretical point positions are determined, the second actual point positions corresponding to the first actual point positions are correspondingly determined.
Optionally, determining a deviation value between the first actual measurement point position corresponding to each theoretical point position and the second actual measurement point position corresponding to each theoretical point position may calculate a deviation value between the first actual measurement point position corresponding to each theoretical point position and the second actual measurement point position corresponding to each theoretical point position by using the recorded first actual measurement point position corresponding to each theoretical point position and the second actual measurement point position currently measured based on measurement software in the three-coordinate measuring machine.
And S104, if the maximum deviation value in the at least one deviation value is smaller than a deviation threshold value, measuring the curved surface part based on the second part coordinate system.
In the embodiment of the invention, the deviation threshold value can be adaptively set according to the measurement requirement. Preferably, the deviation threshold value can be set to be 1/10 of the tolerance requirement of the reference feature to be measured.
Wherein, measure curved surface part specifically means: and performing three-coordinate measurement on the curved surface part. In this embodiment, the three-coordinate measurement includes: profile measurement and/or position measurement.
That is, the embodiment can perform profile measurement on the curved surface part; or the position degree of the curved surface part can be measured; or the profile measurement and the position measurement can be carried out on the curved surface part. It is not particularly limited herein.
Optionally, after obtaining the at least one deviation value, the three-coordinate measuring machine may determine a maximum deviation value of the at least one deviation value, and then compare the maximum deviation value with a deviation threshold value to determine whether the maximum deviation value is less than the deviation threshold value. And if the maximum deviation value is determined to be smaller than the deviation threshold value, the second part coordinate system is determined to meet the part coordinate system requirement of the curved surface part. At this time, the second part coordinate system may be used as a target part coordinate system, and the contour degree measurement and/or the position degree measurement may be performed on the curved surface part by using the target part coordinate system.
It can be understood that, in the embodiment of the invention, the irregular reference of the curved surface part is selected by the user, so that the electronic device determines at least one theoretical point position for establishing the first part coordinate system in the curved surface part according to the irregular reference, continuously optimizes the part coordinate system to obtain the target part coordinate system, and measures the curved surface part based on the target part coordinate system. Therefore, the purpose of performing three-coordinate measurement on the curved surface part can be achieved without communication between a measurer and a craftsman to determine the process machining standard of the curved surface part, the workload of the measurer can be reduced, and the measurement accuracy of the curved surface part can be improved.
According to the technical scheme provided by the embodiment of the invention, at least one theoretical point position of the curved surface part is determined in three-coordinate measurement, a first part coordinate system is established according to the at least one theoretical point position, the curved surface part is measured by using the first part coordinate system to obtain a first actual measurement position point corresponding to each theoretical point position, a second part coordinate system is established according to the first actual measurement point position corresponding to each theoretical point position, the curved surface part is measured by using the second part coordinate system to obtain a deviation value between the first actual measurement point position corresponding to each theoretical point position and the second actual measurement point position corresponding to each theoretical point position, and if the maximum deviation value in the at least one deviation value is smaller than a deviation threshold value, the curved surface part is measured based on the second part coordinate system. Therefore, the measurement of the curved surface part is realized based on at least one theoretical point position of the curved surface part, so that a scheme for measuring the curved surface part without depending on a process machining reference is provided, the side quantity accuracy of the curved surface part is improved, the dependence on auxiliary measuring tools is reduced, and the workload of technical preparation is reduced.
Example two
Fig. 2 is a flow chart of a method for measuring curved surface parts according to a second embodiment of the present invention. Further optimization was performed on the basis of the above embodiments. As shown in fig. 2, the method is specifically as follows:
s201, determining at least one theoretical point position of the curved surface part in three-coordinate measurement.
S202, a first part coordinate system is established according to the at least one theoretical point position, and the curved surface part is measured by utilizing the first part coordinate system, so that a first actual point position corresponding to each theoretical point position is obtained.
S203, a second part coordinate system is established according to the first actual point position corresponding to each theoretical point position, and the curved surface part is measured by utilizing the second part coordinate system, so that a deviation value between the first actual point position corresponding to each theoretical point position and the second actual point position corresponding to each theoretical point position is obtained.
S204, if the maximum deviation value in the at least one deviation value is greater than or equal to the deviation threshold value, repeating the following operations: and taking at least one second actual measurement point position as a current actual measurement point position, establishing a new part coordinate system according to the current actual measurement point position, and measuring the curved surface part by utilizing the new part coordinate system until a target part coordinate system is obtained.
Optionally, after obtaining the at least one deviation value, the three-coordinate measuring machine may determine a maximum deviation value of the at least one deviation value, and then compare the maximum deviation value with a deviation threshold value to determine whether the maximum deviation value is less than the deviation threshold value. And if the maximum deviation value is determined to be greater than or equal to the deviation threshold value, the second part coordinate system is determined to not meet the part coordinate system requirement of the curved surface part. At this time, the three-coordinate measuring machine may use at least one second actual-measurement point position as a current actual-measurement point position, and use at least one theoretical point position belonging to the same direction in the current actual-measurement point position as a Z-axis, so as to establish a new part coordinate system based on a right-hand rule. After the new part coordinate system is established, the three-coordinate measuring machine can utilize the new part coordinate system to measure the curved surface part again so as to obtain a new actual point position corresponding to each theoretical point position and a deviation value between a second actual point position corresponding to each theoretical point position and the new actual point position corresponding to each theoretical point position. In the embodiment of the present invention, the implementation process of obtaining the deviation value between the second actual measurement point position corresponding to each theoretical point position and the new actual measurement point position corresponding to each theoretical point position is similar to the process of obtaining the deviation value between the first actual measurement point position corresponding to each theoretical point position and the second actual measurement point position corresponding to each theoretical point position in the foregoing embodiment, and the specific implementation process is as follows:
The three-coordinate measuring machine can calculate the deviation value between the second actual measurement point position corresponding to each theoretical point position and the new actual measurement point position corresponding to each theoretical point position by adopting the recorded second actual measurement point position corresponding to each theoretical point position and the current measured new actual measurement point position based on the measuring software in the three-coordinate measuring machine.
Further, after obtaining the deviation value between the second actual measurement point position corresponding to each theoretical point position and the new actual measurement point position corresponding to each theoretical point position, the maximum deviation value in at least one deviation value can be determined, and the maximum deviation value is compared with the deviation threshold value to determine whether the maximum deviation value is smaller than the deviation threshold value. And if the maximum deviation value is smaller than the deviation threshold value, determining the new part coordinate system as a target part coordinate system, otherwise, taking the new actual point position as the current actual point position, establishing the new part coordinate system according to the current actual point position, and measuring the curved surface part again by utilizing the new part coordinate system until the maximum deviation value in the deviation value between the second actual point position corresponding to each theoretical point position and the new actual point position corresponding to each theoretical point position is smaller than the deviation threshold value. Correspondingly, taking the new part coordinate corresponding to the maximum deviation value smaller than the deviation threshold value in the at least one deviation value as a target part coordinate system.
S205, performing three-coordinate measurement on the curved surface part based on the target part coordinate system.
Specifically, after the target part coordinate system is obtained, the three-coordinate measuring machine can measure the curved surface part based on the target part coordinate system.
According to the technical scheme provided by the embodiment of the invention, at least one theoretical point position of the curved surface part is determined in three-coordinate measurement, a first part coordinate system is established according to the at least one theoretical point position, the curved surface part is measured by using the first part coordinate system, a first actual measurement position point corresponding to each theoretical point position is obtained, a second part coordinate system is established according to the first actual measurement point position corresponding to each theoretical point position, the curved surface part is measured by using the second part coordinate system, a deviation value between the first actual measurement point position corresponding to each theoretical point position and the second actual measurement point position corresponding to each theoretical point position is obtained, if the maximum deviation value in the at least one deviation value is greater than or equal to a deviation threshold value, the at least one second actual measurement point position is used as a current actual measurement point, a new part coordinate system is established according to the current actual measurement point, the curved surface part is measured by using the new part coordinate system until a target part coordinate system is obtained, and three-coordinate measurement is carried out on the curved surface part based on the target part coordinate system. Therefore, the measurement of the curved surface part is realized based on at least one theoretical point position of the curved surface part, so that a scheme for measuring the curved surface part without depending on a process machining reference is provided, the side quantity accuracy of the curved surface part is improved, the dependence on auxiliary measuring tools is reduced, and the workload of technical preparation is reduced.
Example III
Fig. 3 is a flow chart of a method for measuring a curved surface part according to a third embodiment of the present invention. Further optimization was performed on the basis of the above embodiments. As shown in fig. 3, the method is specifically as follows:
s301, determining at least one theoretical point position of the curved surface part in three-coordinate measurement.
S302, a first part coordinate system is established according to the at least one theoretical point position, and the curved surface part is measured by utilizing the first part coordinate system, so that a first actual point position corresponding to each theoretical point position is obtained.
S303, a second part coordinate system is established according to the first actual point position corresponding to each theoretical point position, and the curved surface part is measured by using the second part coordinate system, so that a deviation value between the first actual point position corresponding to each theoretical point position and the second actual point position corresponding to each theoretical point position is obtained.
S304, if the maximum deviation value in the at least one deviation value is greater than or equal to the deviation threshold value, and at least one second actual measurement point position is taken as a current actual measurement point position, and the number of repeated measurements of the curved surface part reaches a preset number of times based on a new part coordinate system established by the current actual measurement point position, sending prompt information to a user.
The preset times can be set according to actual requirements for measuring the curved surface parts. For example, if in order to ensure measurement efficiency, the preset number of times may be set to 3 times; if the preset number of times is set to 5 times or the like in order to secure the measurement accuracy, it is not particularly limited herein.
In order to avoid the problem that the three-coordinate measuring machine always establishes a part coordinate system in a circulating way due to the problem of measuring software in the three-coordinate measuring machine or the problem of the target part coordinate system which cannot meet the testing requirement of the curved surface part due to the fact that the part of the curved surface part has bulges or other interference features. The early warning times (preset times) for establishing the part coordinate system are set. That is, when the number of times of repeatedly establishing the part coordinate system reaches the preset number of times, it is indicated that the measurement software in the three-coordinate measuring machine has a problem, or that the curved part has a protrusion or other interference feature, at this time, a prompt message may be sent to the user, so that the user can check according to the prompt message, so as to avoid the problem of endless establishment of the part coordinate system caused by the problem of the measurement software in the three-coordinate measuring machine or the protrusion or other interference feature of the curved part.
Optionally, when the maximum deviation value in the at least one deviation value is greater than or equal to the deviation threshold, and the number of times that the three-coordinate measuring machine has repeatedly established a new part coordinate system according to the current actual measurement point position reaches a preset number of times, but the established new part coordinate system still does not meet the part coordinate system requirement of measuring the curved surface part, there may be problems in the measurement software of the three-coordinate measuring machine, or there may be protrusions or other interference features on part of the curved surface part, so that the part coordinate system meeting the measurement requirement cannot be obtained. In order to reduce or even avoid the problem that a part coordinate system meeting the measurement requirement cannot be obtained due to factors such as the fact that the measurement software or the curved part locally has bulges. Therefore, in this embodiment, when the three-coordinate measuring machine monitors that the number of times that the measurement result of measuring the curved surface part does not meet the requirement reaches the preset number of times by using the new part coordinate system, prompt information is sent to the user, so that the user checks and adjusts the test software of the three-coordinate measuring machine or the curved surface part based on the prompt information sent by the three-coordinate measuring machine, then establishes a part coordinate system again according to the adjusted test software or the curved surface part, measures the curved surface part by using the established part coordinate system, and takes the part coordinate as a target part coordinate system when the measurement result meets the requirement. Then, based on the target part coordinate system, the curved surface part is measured.
The implementation process of establishing the part coordinate system again according to the adjusted test software or curved surface part is similar to or the same as the implementation process of establishing the first part coordinate system, the second part coordinate system or the new part coordinate system in the foregoing embodiment, and detailed descriptions thereof will not be repeated herein.
According to the technical scheme provided by the embodiment of the invention, at least one theoretical point position of the curved surface part is determined in three-coordinate measurement, a first part coordinate system is established according to the at least one theoretical point position, the curved surface part is measured by using the first part coordinate system to obtain a first actual measurement position point corresponding to each theoretical point position, a second part coordinate system is established according to the first actual measurement point position corresponding to each theoretical point position, the curved surface part is measured by using the second part coordinate system to obtain a deviation value between the first actual measurement point position corresponding to each theoretical point position and the second actual measurement point position corresponding to each theoretical point position, if the maximum deviation value in the at least one deviation value is greater than or equal to a deviation threshold value, and at least one second actual measurement point position is used as a current actual measurement point position, and based on the new part coordinate system established by the current actual measurement point position, the repeated times of the curved surface part reaches the preset times, prompt information is sent to a user, so that the user checks test software of the three-coordinate measuring machine and/or the software of the curved surface part is checked based on the prompt information, the problem of the curve surface is solved, the problem of the measurement of the curved surface part is solved, and the tool is reduced, and the work quantity of the auxiliary tool is reduced, and the work quantity of the measurement is reduced is prepared for the curved surface part is improved.
Example IV
Fig. 4 is a schematic diagram of a specific example of a measurement method of a curved surface part according to a fourth embodiment of the present invention. As shown in fig. 4, the curved part has a regular reference feature, and the regular reference feature includes: plane 1 and small circular hole 22. To establish a target part coordinate system for measuring the curved part, the present embodiment may determine 2 degrees of freedom parallel to plane 1 from plane 1. Typically these 2 degrees of freedom are determined by planes perpendicular to plane 1, and the curved part does not have a similar plane perpendicular to plane 1 in this example. Thus, 2 degrees of freedom parallel to plane 1 are determined, and a theoretical point position a can be determined according to the intersection of the axis of the small circular hole 22 on the curved surface part and plane 1, and a theoretical point position b and a theoretical point position c can be randomly selected on the other plane 2 of the curved surface part. Then, the theoretical point position b and the theoretical point position c are projected on the plane 1 to obtain a projected point position d and a projected point position e, wherein the projected point position d is used as a first actual point position d, and the projected point position e is used as another first actual point position e. The first actual point position d and the first actual point position e are connected to obtain a straight line 33, and the straight line 33 is used for determining 2 degrees of freedom parallel to the plane 1.
Further, the projected point of the theoretical point position a on the straight line 33 is taken as an origin, the Z-axis direction of the first part coordinate system is determined according to the plane 1, the X-axis direction of the first part coordinate system is determined by the straight line 33, and the first part coordinate system is established by the right-hand rule. And then, the three-coordinate measuring machine measures the first actual-point position corresponding to the theoretical point position b and the theoretical point position c according to the first part coordinate system, the theoretical point position b, the theoretical point position c, the direction information of the theoretical point position b and the direction information of the theoretical point position c. After the first actual measurement point position is obtained, the three-coordinate measuring machine can establish a second part coordinate system according to the first actual measurement point position corresponding to each of the theoretical point position b and the theoretical point position c, measure the second actual measurement point position corresponding to each of the theoretical point position b and the theoretical point position c according to the second part coordinate system, the theoretical point position b and the theoretical point position c, and simultaneously determine a deviation value between the first actual measurement point position corresponding to the theoretical point position b and the second actual measurement point position corresponding to the theoretical point position b and a deviation value between the first actual measurement point position corresponding to the theoretical point position c and the second actual measurement point position corresponding to the theoretical point position c. And then, selecting a maximum deviation value, comparing the maximum deviation value with a deviation threshold value, and if the maximum deviation value is smaller than the deviation threshold value of the curved surface part, taking the second part coordinate system as a target part coordinate system, and carrying out three-coordinate measurement on the curved surface part based on the target part coordinate system. If the maximum deviation value is greater than or equal to the deviation threshold value of the curved surface part, the second actual measurement point position corresponding to each of the theoretical point position b and the theoretical point position c is repeatedly used as the current actual measurement point position, a new part coordinate system is established according to the current actual measurement point position, the curved surface part is measured by using the new part coordinate system until the obtained deviation value between the new actual measurement point position and the current actual measurement point position is smaller than the deviation threshold value, and the new part coordinate system corresponding to the moment is used as the target part coordinate system, so that three-coordinate measurement is carried out on the curved surface part by using the target part coordinate system.
That is, by cyclically establishing a new part coordinate system, coordinate values of different theoretical point positions in the Z direction are determined stepwise by the curved surface 1, coordinate values in the X direction are determined stepwise by the theoretical point position a, and coordinate values in the Y direction are determined stepwise by the curved surface part.
Example five
Fig. 5 is a schematic structural diagram of a measuring device for curved surface parts according to a fifth embodiment of the present invention. The measuring device for the curved surface part provided by the embodiment of the invention is configured in the electronic equipment. As shown in fig. 5, a measuring apparatus 500 for curved parts according to an embodiment of the present invention includes: a first determination module 510, a first measurement module 520, a second measurement module 530, and a third measurement module 540.
Wherein, the first determining module 510 is configured to determine at least one theoretical point position of the curved surface part in three-coordinate measurement;
The first measurement module 520 is configured to establish a first part coordinate system according to the at least one theoretical point position, and measure the curved surface part by using the first part coordinate system to obtain a first actual point position corresponding to each theoretical point position;
The second measurement module 530 is configured to establish a second part coordinate system according to the first actual measurement point position corresponding to each theoretical point position, and measure the curved surface part by using the second part coordinate system to obtain a deviation value between the first actual measurement point position corresponding to each theoretical point position and the second actual measurement point position corresponding to each theoretical point position;
And a third measurement module 540, configured to measure the curved surface part based on the second part coordinate system if a maximum deviation value of the at least one deviation value is less than a deviation threshold value.
As an alternative implementation manner of the embodiment of the present invention, the apparatus 500 further includes: a coordinate system acquisition module;
The coordinate system acquisition module is configured to repeatedly perform the following operations if it is determined that a maximum deviation value of at least one deviation value is greater than or equal to the deviation threshold value: taking at least one second actual measurement point position as a current actual measurement point position, establishing a new part coordinate system according to the current actual measurement point position, and measuring the curved surface part by utilizing the new part coordinate system until a target part coordinate system is obtained;
The third measurement module 540 is specifically configured to measure the curved surface part based on the target part coordinate system.
As an alternative implementation manner of the embodiment of the present invention, the apparatus 500 further includes: a transmitting module;
And the sending module is used for sending prompt information to a user if the maximum deviation value in the at least one deviation value is determined to be greater than or equal to the deviation threshold value, at least one second actual measurement point position is taken as the current actual measurement point position, and the number of repeated times of measurement on the curved surface part reaches the preset number of times based on a new part coordinate system established by the current actual measurement point position.
As an optional implementation manner of the embodiment of the present invention, the apparatus 500 further includes: a second determination module;
The second determining module is used for determining the direction information of each theoretical point position;
accordingly, the first measurement module 520 is specifically configured to:
in the first part coordinate system, the measuring head is controlled to sequentially move to each theoretical point position according to the direction information of each theoretical point position;
When the measuring head moves to any one of the theoretical point positions, recording the actual point position corresponding to the theoretical point position to obtain a first actual point position corresponding to each theoretical point position.
As an optional implementation manner of the embodiment of the present invention, the second measurement module 530 is specifically configured to:
in the second part coordinate system, the measuring head is controlled to sequentially move to each theoretical point position according to the direction information of each theoretical point position;
When the measuring head moves to any one theoretical point position, recording the actual point position corresponding to the theoretical point position to obtain a second actual point position corresponding to each theoretical point position;
And determining a deviation value between the first actual measurement point position corresponding to each theoretical point position and the second actual measurement point position corresponding to each theoretical point position.
As an alternative implementation manner of the embodiment of the invention, the direction information of each theoretical point is the normal direction on the curved surface where each theoretical point is located.
As an alternative implementation manner of the embodiment of the present invention, the at least one theoretical point position is different degrees of freedom of the curved surface part in space.
It should be noted that the foregoing explanation of the embodiment of the method for measuring a curved surface part is also applicable to the apparatus for measuring a curved surface part of this embodiment, and the implementation principle is similar, and will not be repeated here.
According to the technical scheme provided by the embodiment of the invention, at least one theoretical point position of the curved surface part is determined in three-coordinate measurement, a first part coordinate system is established according to the at least one theoretical point position, the curved surface part is measured by using the first part coordinate system to obtain a first actual measurement position point corresponding to each theoretical point position, a second part coordinate system is established according to the first actual measurement point position corresponding to each theoretical point position, the curved surface part is measured by using the second part coordinate system to obtain a deviation value between the first actual measurement point position corresponding to each theoretical point position and the second actual measurement point position corresponding to each theoretical point position, and if the maximum deviation value in the at least one deviation value is smaller than a deviation threshold value, the curved surface part is measured based on the second part coordinate system. Therefore, the measurement of the curved surface part is realized based on at least one theoretical point position of the curved surface part, so that a scheme for measuring the curved surface part without depending on a process machining reference is provided, the side quantity accuracy of the curved surface part is improved, the dependence on auxiliary measuring tools is reduced, and the workload of technical preparation is reduced.
Example six
Fig. 6 is a schematic structural diagram of an electronic device according to a sixth embodiment of the present invention. Fig. 6 illustrates a block diagram of an exemplary electronic device 600 suitable for use in implementing embodiments of the invention. The electronic device 600 shown in fig. 6 is merely an example, and should not be construed as limiting the functionality and scope of use of embodiments of the present invention. In the embodiment of the invention, the electronic device is preferably a three-coordinate measuring machine.
As shown in fig. 6, the electronic device 600 is in the form of a general purpose computing device. Components of electronic device 600 may include, but are not limited to: one or more processors or processing units 16, a system memory 28, a bus 18 that connects the various system components, including the system memory 28 and the processing units 16.
Bus 18 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a processor, and a local bus using any of a variety of bus architectures. By way of example, and not limitation, such architectures include Industry Standard Architecture (ISA) bus, micro channel architecture (MAC) bus, enhanced ISA bus, video Electronics Standards Association (VESA) local bus, and Peripheral Component Interconnect (PCI) bus.
Electronic device 600 typically includes a variety of computer system readable media. Such media can be any available media that is accessible by electronic device 600 and includes both volatile and nonvolatile media, removable and non-removable media.
The system memory 28 may include computer system readable media in the form of volatile memory, such as Random Access Memory (RAM) 30 and/or cache memory 32. The electronic device 600 may further include other removable/non-removable, volatile/nonvolatile computer system storage media. By way of example only, storage system 34 may be used to read from or write to non-removable, nonvolatile magnetic media (not shown in FIG. 6, commonly referred to as a "hard disk drive"). Although not shown in fig. 6, a magnetic disk drive for reading from and writing to a removable non-volatile magnetic disk (e.g., a "floppy disk"), and an optical disk drive for reading from or writing to a removable non-volatile optical disk (e.g., a CD-ROM, DVD-ROM, or other optical media) may be provided. In such cases, each drive may be coupled to bus 18 through one or more data medium interfaces. Memory 28 may include at least one program product having a set (e.g., at least one) of program modules configured to carry out the functions of embodiments of the invention.
A program/utility 40 having a set (at least one) of program modules 42 may be stored in, for example, memory 28, such program modules 42 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment. Program modules 42 generally perform the functions and/or methods of the embodiments described herein.
The electronic device 600 may also communicate with one or more external devices 14 (e.g., keyboard, pointing device, display 24, etc.), one or more devices that enable a user to interact with the electronic device 600, and/or any devices (e.g., network card, modem, etc.) that enable the electronic device 600 to communicate with one or more other computing devices. Such communication may occur through an input/output (I/O) interface 26. Also, the electronic device 600 may communicate with one or more networks such as a Local Area Network (LAN), a Wide Area Network (WAN) and/or a public network, such as the Internet, through the network adapter 20. As shown, the network adapter 20 communicates with other modules of the electronic device 600 over the bus 18. It should be appreciated that although not shown, other hardware and/or software modules may be used in connection with electronic device 600, including, but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, data backup storage systems, and the like.
The processing unit 16 executes various functional applications and data processing by running a program stored in the system memory 28, for example, to implement a method for measuring a curved surface part according to an embodiment of the present invention, including:
in three-coordinate measurement, determining at least one theoretical point position of the curved surface part;
Establishing a first part coordinate system according to the at least one theoretical point position, and measuring the curved surface part by utilizing the first part coordinate system to obtain a first actual point position corresponding to each theoretical point position;
Establishing a second part coordinate system according to the first actual measurement point position corresponding to each theoretical point position, and measuring the curved surface part by utilizing the second part coordinate system to obtain a deviation value between the first actual measurement point position corresponding to each theoretical point position and the second actual measurement point position corresponding to each theoretical point position;
And if the maximum deviation value in the at least one deviation value is smaller than a deviation threshold value, measuring the curved surface part based on the second part coordinate system.
It should be noted that the foregoing explanation of the embodiment of the method for measuring a curved surface part is also applicable to the electronic device of this embodiment, and the implementation principle is similar, which is not repeated here.
According to the technical scheme provided by the embodiment of the invention, at least one theoretical point position of the curved surface part is determined in three-coordinate measurement, a first part coordinate system is established according to the at least one theoretical point position, the curved surface part is measured by using the first part coordinate system to obtain a first actual measurement position point corresponding to each theoretical point position, a second part coordinate system is established according to the first actual measurement point position corresponding to each theoretical point position, the curved surface part is measured by using the second part coordinate system to obtain a deviation value between the first actual measurement point position corresponding to each theoretical point position and the second actual measurement point position corresponding to each theoretical point position, and if the maximum deviation value in the at least one deviation value is smaller than a deviation threshold value, the curved surface part is measured based on the second part coordinate system. Therefore, the measurement of the curved surface part is realized based on at least one theoretical point position of the curved surface part, so that a scheme for measuring the curved surface part without depending on a process machining reference is provided, the side quantity accuracy of the curved surface part is improved, the dependence on auxiliary measuring tools is reduced, and the workload of technical preparation is reduced.
Example seven
To achieve the above object, the present invention also proposes a computer-readable storage medium.
The embodiment of the invention provides a computer readable storage medium, on which a computer program is stored, the program when executed by a processor realizes the method for measuring a curved surface part according to the embodiment of the invention, the method comprises:
in three-coordinate measurement, determining at least one theoretical point position of the curved surface part;
Establishing a first part coordinate system according to the at least one theoretical point position, and measuring the curved surface part by utilizing the first part coordinate system to obtain a first actual point position corresponding to each theoretical point position;
Establishing a second part coordinate system according to the first actual measurement point position corresponding to each theoretical point position, and measuring the curved surface part by utilizing the second part coordinate system to obtain a deviation value between the first actual measurement point position corresponding to each theoretical point position and the second actual measurement point position corresponding to each theoretical point position;
And if the maximum deviation value in the at least one deviation value is smaller than a deviation threshold value, measuring the curved surface part based on the second part coordinate system.
The computer storage media of embodiments of the invention may take the form of any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, either in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations of the present invention may be written in one or more programming languages, including an object oriented programming language such as Java, smalltalk, C ++ and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computer (for example, through the Internet using an Internet service provider).
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.

Claims (8)

1. A method of measuring a curved part, comprising:
in three-coordinate measurement, determining at least one theoretical point position of the curved surface part; the at least one theoretical point position comprises different degrees of freedom of the curved surface part in space, wherein the degrees of freedom are moving automation along the directions of three right-angle coordinate axes of an X axis, a Y axis and a Z axis and rotating degrees of freedom around the three coordinate axes of the X axis, the Y axis and the Z axis;
Establishing a first part coordinate system according to the at least one theoretical point position, and measuring the curved surface part by utilizing the first part coordinate system to obtain a first actual point position corresponding to each theoretical point position;
Establishing a second part coordinate system according to the first actual measurement point position corresponding to each theoretical point position, and measuring the curved surface part by utilizing the second part coordinate system to obtain a deviation value between the first actual measurement point position corresponding to each theoretical point position and the second actual measurement point position corresponding to each theoretical point position;
if the maximum deviation value in the at least one deviation value is smaller than a deviation threshold value, measuring the curved surface part based on the second part coordinate system;
after determining the position of at least one theoretical point of the curved surface part, the method further comprises:
Determining direction information of each theoretical point position;
The step of measuring the curved surface part by using the first part coordinate system to obtain a first actual point position corresponding to each theoretical point position includes:
in the first part coordinate system, the measuring head is controlled to sequentially move to each theoretical point position according to the direction information of each theoretical point position;
if the measuring head moves to any one theoretical point position, recording the actual point position corresponding to the theoretical point position to obtain a first actual point position corresponding to each theoretical point position;
The measuring the curved surface part by using the second part coordinate system to obtain a deviation value between the first actual point position corresponding to each theoretical point position and the second actual point position corresponding to each theoretical point position, including:
in the second part coordinate system, the measuring head is controlled to sequentially move to each theoretical point position according to the direction information of each theoretical point position;
When the measuring head moves to any one theoretical point position, recording the actual point position corresponding to the theoretical point position to obtain a second actual point position corresponding to each theoretical point position;
And determining a deviation value between the first actual measurement point position corresponding to each theoretical point position and the second actual measurement point position corresponding to each theoretical point position.
2. The method of claim 1, wherein after obtaining the deviation value between the first real-point position corresponding to each theoretical point position and the second real-point position corresponding to each theoretical point position, further comprises:
If the maximum deviation value in the at least one deviation value is greater than or equal to the deviation threshold value, repeating the following operations: taking at least one second actual measurement point position as a current actual measurement point position, establishing a new part coordinate system according to the current actual measurement point position, and measuring the curved surface part by utilizing the new part coordinate system until a target part coordinate system is obtained;
and measuring the curved surface part based on the target part coordinate system.
3. The method of claim 2, wherein after obtaining the deviation value between the first real-point position corresponding to each theoretical point position and the second real-point position corresponding to each theoretical point position, further comprises:
And if the maximum deviation value in the at least one deviation value is determined to be greater than or equal to the deviation threshold value, taking the at least one second actual measurement point position as the current actual measurement point position, and based on a new part coordinate system established by the current actual measurement point position, sending prompt information to a user if the number of repeated times of measuring the curved surface part reaches the preset number of times.
4. The method of claim 1, wherein the direction information of each theoretical point is a normal direction on the surface on which each theoretical point is located.
5. The method of claim 1, wherein the at least one theoretical point location comprises different degrees of freedom of the curved surface part in space.
6. A measurement device for curved surface part, characterized by comprising:
the first determining module is used for determining at least one theoretical point position of the curved surface part in three-coordinate measurement; the at least one theoretical point position comprises different degrees of freedom of the curved surface part in space, wherein the degrees of freedom are moving automation along the directions of three right-angle coordinate axes of an X axis, a Y axis and a Z axis and rotating degrees of freedom around the three coordinate axes of the X axis, the Y axis and the Z axis;
The first measuring module is used for establishing a first part coordinate system according to the at least one theoretical point position, and measuring the curved surface part by utilizing the first part coordinate system to obtain a first actual point position corresponding to each theoretical point position;
the second measurement module is used for establishing a second part coordinate system according to the first actual measurement point position corresponding to each theoretical point position, and measuring the curved surface part by utilizing the second part coordinate system to obtain a deviation value between the first actual measurement point position corresponding to each theoretical point position and the second actual measurement point position corresponding to each theoretical point position;
The third measuring module is used for measuring the curved surface part based on the second part coordinate system if the maximum deviation value in the at least one deviation value is smaller than the deviation threshold value;
the device further comprises:
the second determining module is used for determining the direction information of each theoretical point position;
the first measurement module is specifically configured to:
in the first part coordinate system, the measuring head is controlled to sequentially move to each theoretical point position according to the direction information of each theoretical point position;
when the measuring head moves to any one theoretical point position, recording the actual point position corresponding to the theoretical point position to obtain a first actual point position corresponding to each theoretical point position;
The second measurement module is specifically configured to:
in the second part coordinate system, the measuring head is controlled to sequentially move to each theoretical point position according to the direction information of each theoretical point position;
When the measuring head moves to any one theoretical point position, recording the actual point position corresponding to the theoretical point position to obtain a second actual point position corresponding to each theoretical point position;
And determining a deviation value between the first actual measurement point position corresponding to each theoretical point position and the second actual measurement point position corresponding to each theoretical point position.
7. An electronic device, comprising:
one or more processors;
Storage means for storing one or more programs,
When executed by the one or more processors, causes the one or more processors to implement the method of measuring a curved part as recited in any of claims 1-5.
8. A computer-readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements a method for measuring a curved surface part according to any one of claims 1-5.
CN202011416203.0A 2020-12-03 2020-12-03 Method, device, equipment and medium for measuring curved surface part Active CN114593704B (en)

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