CN112676925A - Method, device and equipment for grinding and polishing blade of aero-engine and storage medium - Google Patents
Method, device and equipment for grinding and polishing blade of aero-engine and storage medium Download PDFInfo
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Abstract
The invention relates to the technical field of machining, and discloses a method, a device, equipment and a storage medium for grinding and polishing an aircraft engine blade, wherein the method comprises the following steps: the method comprises the steps of obtaining a blade polishing track and a blade measuring track of an aircraft engine blade when a polishing instruction is received, setting preset polishing process parameters, polishing the aircraft engine blade according to the blade polishing track based on the preset polishing process parameters, determining a machining allowance for polishing according to the blade measuring track in the polishing process, and finishing polishing of the aircraft engine blade according to the machining allowance. Through the arrangement, grinding and polishing and detection of the blades of the aero-engine, the labor cost is reduced, the dependence on the skill level and experience of workers is reduced, and the production efficiency is improved.
Description
Technical Field
The invention relates to the technical field of machining, in particular to a method, a device and equipment for grinding and polishing an aircraft engine blade and a storage medium.
Background
The blade is the most important part in the aeroengine, the working environment is bad, and the price is the most expensive; in order to prolong the service life of the aero-engine, the vane needs to be repaired once every 600-inch flight of the aero-engine for 1000 hours, the repair and remanufacturing processes of the aero-engine are that the worn surface of the vane is filled by using a 3D printing additive manufacturing or welding mode, however, the size precision and the surface roughness of a supplement part cannot meet the use requirements, and the redundant material needs to be removed by a grinding and polishing method; or directly grinding and polishing the corroded surface of the blade of the aircraft engine to achieve the required profile, size and smoothness. The existing blade repairing mainly adopts a manual mode, particularly a blade grinding and polishing process, so that the requirements on the skill and physical ability of an operator are high, the labor intensity is high, the production efficiency is low, and most importantly, the operation is greatly damaged, so that the trouble of the requirement of the aeroengine blade repairing industry on high-tech workers is caused.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide a method, a device, equipment and a storage medium for grinding and polishing an aircraft engine blade, and aims to solve the technical problems that in the prior art, the manual grinding and polishing mode is mainly adopted in the aircraft engine blade repairing industry, so that the labor cost is increased and the dependence on the skill level and experience of workers is caused.
In order to achieve the purpose, the invention provides a grinding and polishing method for an aircraft engine blade, which comprises the following steps:
when a grinding and polishing instruction is received, a blade grinding track and a blade measuring track of an aircraft engine blade are obtained;
setting preset grinding and polishing process parameters;
grinding and polishing the aero-engine blade according to the blade grinding track based on the preset grinding and polishing process parameters;
in the grinding and polishing process, determining the machining allowance for grinding and polishing according to the blade measuring track;
and finishing the grinding and polishing of the aero-engine blade according to the machining allowance.
Optionally, before the blade grinding track and the blade measurement track of the aircraft engine blade are obtained when the grinding and polishing instruction is received, the method further includes:
determining a calibration compensation process of the blade of the aircraft engine when a starting instruction is received;
and generating a blade grinding track and a blade measuring track of the aero-engine blade according to the calibration compensation procedure.
Optionally, the grinding and polishing the blade of the aircraft engine according to the blade grinding track based on the preset grinding and polishing process parameters includes:
carrying out initial grinding and polishing processing on the blade of the aero-engine according to the blade grinding track based on the preset grinding and polishing process parameters;
acquiring a preset constant force grinding and polishing algorithm;
adjusting the polishing track of the blade subjected to the initial polishing according to the preset constant force polishing algorithm to obtain an adjusted polishing track;
and grinding and polishing the aero-engine blade according to the adjusted grinding track.
Optionally, in the grinding and polishing process, determining a machining allowance for grinding and polishing according to the blade measurement track includes:
acquiring the current height value of the blade of the aero-engine according to the blade measuring track at preset time;
calculating the grinding thickness of the aero-engine blade according to the current height value;
and if the polishing thickness is larger than the preset polishing thickness, determining the machining allowance for polishing.
Optionally, the calculating the sanding thickness of the aircraft engine blade according to the current height value includes:
acquiring an initial height value of the aero-engine blade;
and calculating the grinding thickness of the aero-engine blade according to the initial height value and the current height value.
Optionally, after the comparing according to the machining allowance and the preset machining allowance, the method further includes:
and if the machining allowance is less than or equal to the preset machining allowance, performing the step of grinding and polishing the aero-engine blade according to the blade grinding track based on the preset grinding and polishing technological parameters.
In addition, in order to achieve the above object, the present invention further provides an aircraft engine blade grinding and polishing device, including:
the acquisition module is used for acquiring a blade polishing track and a blade measuring track of the blade of the aircraft engine when a polishing instruction is received;
the setting module is used for setting preset grinding and polishing process parameters;
the grinding and polishing module is used for grinding and polishing the aero-engine blade according to the blade grinding track based on the preset grinding and polishing technological parameters;
the determining module is used for determining the machining allowance for grinding and polishing according to the blade measuring track in the grinding and polishing machining process;
and the finishing module is used for finishing the grinding and polishing of the aero-engine blade according to the machining allowance.
In addition, in order to achieve the above object, the present invention further provides an aircraft engine blade grinding and polishing apparatus, including: the device comprises a memory, a processor and an aeroengine blade grinding and polishing program stored on the memory and capable of running on the processor, wherein the aeroengine blade grinding and polishing program is configured with steps for realizing the aeroengine blade grinding and polishing method.
In addition, to achieve the above object, the present invention further provides a storage medium, wherein the storage medium stores an aircraft engine blade polishing program, and the aircraft engine blade polishing program realizes the steps of the aircraft engine blade polishing method as described above when executed by a processor.
According to the aero-engine blade grinding and polishing method provided by the invention, when a grinding and polishing instruction is received, a blade grinding track and a blade measuring track of an aero-engine blade are obtained, a preset grinding and polishing process parameter is set, the aero-engine blade is ground and polished according to the blade grinding track based on the preset grinding and polishing process parameter, in the grinding and polishing process, a machining allowance for grinding and polishing is determined according to the blade measuring track, and the aero-engine blade is ground and polished according to the machining allowance. Through the arrangement, grinding and polishing and detection of the blades of the aero-engine, the labor cost is reduced, the dependence on the skill level and experience of workers is reduced, and the production efficiency is improved.
Drawings
FIG. 1 is a schematic structural diagram of an aircraft engine blade grinding and polishing device in a hardware operating environment according to an embodiment of the invention;
FIG. 2 is a schematic flow chart of a first embodiment of the aero-engine blade polishing method of the present invention;
FIG. 3 is a structural diagram of an aircraft engine blade grinding and polishing device according to an embodiment of the aircraft engine blade grinding and polishing method of the invention;
FIG. 4 is a schematic flow chart of a second embodiment of the aero-engine blade polishing method of the present invention;
FIG. 5 is a structural diagram of an algorithm of a constant force grinding and polishing system of an aircraft engine blade according to an embodiment of the aircraft engine blade grinding and polishing method of the invention;
fig. 6 is a functional module schematic diagram of a first embodiment of the aircraft engine blade grinding and polishing device.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an aircraft engine blade grinding and polishing device in a hardware operating environment according to an embodiment of the present invention.
As shown in fig. 1, the aircraft engine blade grinding and polishing apparatus may include: a processor 1001, such as a Central Processing Unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may comprise a Display screen (Display), an input unit such as keys, and the optional user interface 1003 may also comprise a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface). The Memory 1005 may be a Random Access Memory (RAM) Memory or a non-volatile Memory (e.g., a magnetic disk Memory). The memory 1005 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the configuration of the apparatus shown in FIG. 1 does not constitute a limitation of an aircraft engine blade burnishing apparatus and may include more or fewer components than shown, or some components in combination, or a different arrangement of components.
As shown in fig. 1, a memory 1005, which is a storage medium, may include therein an operating system, a network communication module, a user interface module, and an aircraft engine blade grinding and polishing program.
In the aircraft engine blade grinding and polishing device shown in fig. 1, the network interface 1004 is mainly used for connecting an external network and performing data communication with other network devices; the user interface 1003 is mainly used for connecting to a user equipment and performing data communication with the user equipment; the device calls an aero-engine blade grinding and polishing program stored in the memory 1005 through the processor 1001, and executes the aero-engine blade grinding and polishing method provided by the embodiment of the invention.
Based on the hardware structure, the embodiment of the grinding and polishing method for the blade of the aero-engine is provided.
Referring to fig. 2, fig. 2 is a schematic flow chart of a first embodiment of the aircraft engine blade polishing method of the invention.
In a first embodiment, the aircraft engine blade grinding and polishing method comprises the following steps:
and step S10, acquiring a blade grinding track and a blade measuring track of the aero-engine blade when the grinding and polishing instruction is received.
It should be noted that the executing main body of the embodiment may be an aircraft engine blade grinding and polishing device, and may also be other devices that can achieve the same or similar functions.
It can be understood that the grinding and polishing instruction can be an instruction for starting the robot motion control module, the blade grinding track can be programmed for completing the robot grinding track, the blade measuring track can be programmed for completing the teaching of the robot measuring track, and the blade grinding track and the blade measuring track can be obtained when the grinding and polishing instruction is received.
In a specific implementation, as shown in fig. 3, fig. 3 is a structural diagram of the aircraft engine blade grinding and polishing device of the embodiment, and includes an industrial robot and a control cabinet 1; a high-precision line laser sensor measuring system 2; the six-dimensional force sensing is used for measuring the real-time grinding and polishing force 3 in the blade grinding and polishing process; the electric spindle 4 is used for driving the polishing head to move; an electric spindle support 5; a blade grinding tool 6; a master control system 7 and the like. The high-precision line laser measuring system 2 comprises a line laser sensor and a special driving component, so that the line laser can move in an X axis and a Y axis, and the line laser sensor is protected from environmental pollution; the master control system 7 comprises a control system hardware part and a control system software part, can control the movement of the robot, record the position and attitude coordinates of the polished area of the blade, and control the starting and movement functions of the high-precision line laser measuring system 2; the master control system 7 also comprises an industrial personal computer and a developed special software module.
Further, when receiving a grinding and polishing instruction, before obtaining a blade grinding track and a blade measurement track of an aircraft engine blade, the method further comprises:
and determining a calibration compensation process of the blade of the aircraft engine when a starting command is received.
It should be understood that the starting instruction may be an instruction for starting a master control system of the robot grinding and polishing device, when the master control system of the robot grinding and polishing device is started, the pneumatic clamp is opened, the blades to be repaired in the same batch are installed at the tail end of the robot, and calibration compensation processes such as zero drift compensation of the six-dimensional force sensor and gravity compensation of the blades are automatically completed according to a set self-program.
And generating a blade grinding track and a blade measuring track of the aero-engine blade according to the calibration compensation procedure.
It should be noted that, because the master control system includes a control system hardware and software part to control the movement of the robot, after determining the calibration compensation process, the robot is adjusted to a constant force grinding and polishing mode according to the calibration compensation process, the robot offline programming software system is adopted to obtain the initial program of the grinding and polishing of the robot blade, so as to generate the blade polishing track of the aero-engine blade, then the robot is taught to the high-precision line laser measurement system, the initial height values of each point are recorded in the online laser measurement visual field range, and in the specific implementation process, the initial height values of each point are recordedThe height value may be Hi(i ═ 1,2,3.. N), this embodiment does not limit this, and at the same time, the pose of each point is automatically recorded in the general control system program, and the pose can be M in the concrete implementation processi(Mi∈R6I 1,2,3.. N), which is not limited by the present embodiment, so as to generate a blade measurement trajectory of an aircraft engine blade.
And step S20, setting preset grinding and polishing process parameters.
It can be understood that before polishing, polishing parameters need to be adjusted according to the actual condition of the removal capability, and reasonable polishing process parameters, i.e. the rotation speed, the feeding amount, the pressing amount, and the like of the abrasive belt, are set.
And step S30, grinding and polishing the aero-engine blade according to the blade grinding track based on the preset grinding and polishing process parameters.
The method includes the steps that based on preset grinding and polishing process parameters, a robot grinding and polishing device automatically performs initial grinding and polishing processing according to a blade grinding track, automatically adjusts the blade grinding track according to a method introduced by a preset constant force grinding and polishing algorithm to obtain an adjusted grinding track, and performs grinding and polishing processing on the aero-engine blade according to the adjusted grinding track, so that corrosion points and redundant repair materials on the surface of the blade are removed.
And step S40, determining the machining allowance for grinding and polishing according to the blade measurement track in the grinding and polishing process.
It should be understood that, in the grinding and polishing process, when the grinding and polishing process is performed for a preset time, the current height value of the aero-engine blade is obtained according to the blade measurement track, where the preset time may be set by a person skilled in the art, which is not limited in this embodiment, the grinding thickness of the aero-engine blade is calculated according to the current height value, and if the grinding thickness is greater than the maximum grinding amount, the processing allowance for the grinding and polishing process is determined.
And step S50, finishing the grinding and polishing of the aero-engine blade according to the machining allowance.
The method comprises the steps of comparing the machining allowance with a preset machining allowance, finishing grinding and polishing the blade of the aircraft engine if the machining allowance is larger than the preset machining allowance, and continuing to circularly carry out grinding and polishing processing until the set error range of the machining allowance if the machining allowance is smaller than or equal to the preset machining allowance.
In the embodiment, when a grinding and polishing instruction is received, a blade grinding track and a blade measurement track of an aircraft engine blade are obtained, a preset grinding and polishing process parameter is set, the aircraft engine blade is ground and polished according to the blade grinding track based on the preset grinding and polishing process parameter, in the grinding and polishing process, a machining allowance for grinding and polishing is determined according to the blade measurement track, and the grinding and polishing of the aircraft engine blade is completed according to the machining allowance. Through the arrangement, grinding and polishing and detection of the blades of the aero-engine, the labor cost is reduced, the dependence on the skill level and experience of workers is reduced, and the production efficiency is improved.
In an embodiment, as shown in fig. 4, a second embodiment of the grinding and polishing method for an aircraft engine blade according to the present invention is proposed based on the first embodiment, and the step S30 includes:
and S301, carrying out initial grinding and polishing processing on the aero-engine blade according to the blade grinding track based on the preset grinding and polishing process parameters.
The method has the advantages that based on reasonable grinding and polishing technological parameters, the aero-engine blade is subjected to automatic initial grinding and polishing according to the set blade grinding track.
And step S302, acquiring a preset constant force grinding and polishing algorithm.
It should be noted that the preset constant-force grinding and polishing algorithm may be an algorithm of a constant-force grinding and polishing system of an aircraft engine blade, and the preset constant-force grinding and polishing algorithm may be obtained by adjusting the robot to a constant-force grinding and polishing mode, which is not limited in this embodiment.
In a specific implementation, as shown in fig. 5, fig. 5 is a structural diagram of an algorithm of the constant force grinding and polishing system of the aero-engine blade of the embodiment, where x iseRepresenting the location of the environment, keRepresenting the environmental stiffness, Xe、KeRespectively representing the environmental position and stiffness, x, estimated by the adaptive algorithmrRepresenting the generated reference trajectory, ex1Representing the position deviation generated by the impedance control, ex2Representing the position deviation generated by the iterative learning control. Estimating the environmental stiffness K by using an adaptive algorithm through the environmental contact force f measured by a sensor and the position data x read by a robot control systemeEnvironment location XeAnd expected contact force f of grinding and polishing process of robotdAnd using the following formula:
generating a robot reference trajectory xr。
It should be understood that with the impedance control model in the robot power control algorithm, the impedance control algorithm is as follows:
generating an adjustment error e of the robot position using the force tracking error Δ fx1Wherein Δ f ═ fd-f. Then passes through an iterative learning controller ui+1(t)＝ui(t) + U (delta f), and the position adjustment error e of the robot is generated by utilizing the information of the force error delta f and combining the neural network algorithm to optimize the learning rate U functionx2. Finally, the position instruction value x is setc＝xr+ex1+ex2And the control signal is sent to a robot motion controller to control the robot to move according to a specified track, so that constant force control on the force is achieved.
And S303, adjusting the blade polishing track of the initial polishing processing according to the preset constant force polishing algorithm to obtain the adjusted polishing track.
It should be noted that, according to the method introduced by the obtained constant force grinding and polishing algorithm, the blade grinding track of the initial grinding and polishing process is automatically adjusted to obtain the adjusted grinding track.
And S304, grinding and polishing the aero-engine blade according to the adjusted grinding track.
It can be understood that the aero-engine blade is subjected to grinding and polishing according to the adjusted grinding track, so that corrosion points and redundant repair materials on the surface of the blade are removed.
Further, the step S40 includes:
and S401, acquiring the current height value of the blade of the aero-engine according to the blade measuring track at preset time.
It should be understood that during the grinding and polishing process, the grinding and polishing removal amount measurement is carried out according to the blade measurement track after the operation is carried out for the preset time, so as to obtain the current height value of each point, and the current height value can be H in the specific implementation processj(j ═ 1,2,3.. N), which is not limited in this embodiment.
And S402, calculating the grinding thickness of the aero-engine blade according to the current height value.
It will be appreciated that the thickness of the aircraft engine blade to be sanded is automatically calculated by obtaining current height value data for each measurement.
Acquiring an initial height value of the aero-engine blade; and calculating the grinding thickness of the aero-engine blade according to the initial height value and the current height value.
It should be understood that the initial height values H of the points are recorded prior to acquisitioni(i 1,2,3.. N), based on the current height value H of each pointj(j ═ 1,2,3.. N) and an initial height value Hi(i ═ 1,2,3.. N) by calculation, the thickness of the aircraft engine blade can be automatically sanded.
Step S403, if the polishing thickness is larger than the preset polishing thickness, determining the machining allowance for polishing.
It should be noted that, the grinding thickness of the aircraft engine blade is compared with a preset grinding thickness, and if the grinding thickness is greater than the preset grinding thickness, the machining allowance for grinding and polishing can be determined, wherein the machining allowance is presetThe maximum polishing amount H provided by the system by the polishing thicknessmaxIn this embodiment, the machining allowance is not limited to this, in the machining process, excess metal on the surface to be machined on the workpiece is removed by a machining method to obtain a machined surface required by design, and the thickness of the metal layer reserved on the surface of the part is referred to as the machining allowance.
Further, the step S50 includes:
and S501, comparing the machining allowance with a preset machining allowance.
It is understood that the machining allowance is compared with a preset machining allowance, wherein the preset machining allowance may be a machining allowance threshold set by a person skilled in the art, and the embodiment is not limited thereto.
Further, after step S501, the method further includes:
and S5011, if the machining allowance is less than or equal to the preset machining allowance, performing the step of grinding and polishing the aero-engine blade according to the blade grinding track based on the preset grinding and polishing process parameters.
It should be noted that, if the machining allowance is less than or equal to the preset machining allowance, it is indicated that the machining allowance has not reached the machining allowance threshold, and the requirement of finishing polishing is not met, so that the polishing needs to be continuously and circularly performed.
And S502, finishing grinding and polishing the aero-engine blade if the machining allowance is larger than the preset machining allowance.
It should be understood that, if the machining allowance is greater than the preset machining allowance, it indicates that the machining allowance reaches the machining allowance threshold, and the requirement of finishing grinding is met, so that the grinding and polishing of the aero-engine blade are finished.
In the embodiment, the aero-engine blade is initially ground and polished according to a blade grinding track based on set preset grinding and polishing process parameters, the blade grinding track of the initial grinding and polishing process is adjusted according to an obtained preset constant force grinding and polishing algorithm to obtain an adjusted grinding track, the aero-engine blade is ground and polished according to the adjusted grinding track, in the grinding and polishing process, a current height value of the aero-engine blade is obtained according to a blade measuring track at preset time, the grinding thickness of the aero-engine blade is calculated according to the obtained initial height value and the current height value, when the grinding thickness is larger than the preset grinding thickness, the machining allowance is compared with a preset machining allowance, whether the aero-engine blade is ground and polished or continuously is determined according to a comparison result, and therefore labor cost is reduced, and dependence on skill level and experience of workers is achieved, The accuracy of production efficiency is improved.
In addition, an embodiment of the present invention further provides a storage medium, where an aircraft engine blade polishing program is stored on the storage medium, and when executed by a processor, the aircraft engine blade polishing program implements the steps of the aircraft engine blade polishing method described above.
Since the storage medium adopts all technical solutions of all the embodiments, at least all the beneficial effects brought by the technical solutions of the embodiments are achieved, and no further description is given here.
In addition, referring to fig. 6, an embodiment of the present invention further provides an aircraft engine blade grinding and polishing apparatus, where the aircraft engine blade grinding and polishing apparatus includes:
the obtaining module 10 is configured to obtain a blade polishing track and a blade measurement track of an aircraft engine blade when a polishing instruction is received.
It can be understood that the grinding and polishing instruction can be an instruction for starting the robot motion control module, the blade grinding track can be programmed for completing the robot grinding track, the blade measuring track can be programmed for completing the teaching of the robot measuring track, and the blade grinding track and the blade measuring track can be obtained when the grinding and polishing instruction is received.
In a specific implementation, as shown in fig. 3, fig. 3 is a structural diagram of the aircraft engine blade grinding and polishing device of the embodiment, and includes an industrial robot and a control cabinet 1; a high-precision line laser sensor measuring system 2; the six-dimensional force sensing is used for measuring the real-time grinding and polishing force 3 in the blade grinding and polishing process; the electric spindle 4 is used for driving the polishing head to move; an electric spindle support 5; a blade grinding tool 6; a master control system 7 and the like. The high-precision line laser measuring system 2 comprises a line laser sensor and a special driving component, so that the line laser can move in an X axis and a Y axis, and the line laser sensor is protected from environmental pollution; the master control system 7 comprises a control system hardware part and a control system software part, can control the movement of the robot, record the position and attitude coordinates of the polished area of the blade, and control the starting and movement functions of the high-precision line laser measuring system 2; the master control system 7 also comprises an industrial personal computer and a developed special software module.
Further, when receiving a grinding and polishing instruction, before obtaining a blade grinding track and a blade measurement track of an aircraft engine blade, the method further comprises:
and determining a calibration compensation process of the blade of the aircraft engine when a starting command is received.
It should be understood that the starting instruction may be an instruction for starting a master control system of the robot grinding and polishing device, when the master control system of the robot grinding and polishing device is started, the pneumatic clamp is opened, the blades to be repaired in the same batch are installed at the tail end of the robot, and calibration compensation processes such as zero drift compensation of the six-dimensional force sensor and gravity compensation of the blades are automatically completed according to a set self-program.
And generating a blade grinding track and a blade measuring track of the aero-engine blade according to the calibration compensation procedure.
It should be noted that, because the master control system includes a control system hardware and software part to control the movement of the robot, after determining the calibration compensation process, the robot is adjusted to a constant force grinding and polishing mode according to the calibration compensation process, and the robot offline programming software system is adopted to obtain the initial program of the grinding and polishing of the robot blade, so as to generate the blade polishing track of the aero-engine blade, then the robot is taught to the high-precision line laser measurement system, the initial height values of the points are recorded in the online laser measurement visual field range, and the initial height values can be H in the specific implementation processi(i ═ 1,2,3.. N), this embodiment does not limit this, and the poses of each point are automatically recorded in the general control system program, and the embodiment has been implementedThe position in journey can be Mi(Mi∈R6I 1,2,3.. N), which is not limited by the present embodiment, so as to generate a blade measurement trajectory of an aircraft engine blade.
And the setting module 20 is used for setting preset grinding and polishing process parameters.
It can be understood that before polishing, polishing parameters need to be adjusted according to the actual condition of the removal capability, and reasonable polishing process parameters, i.e. the rotation speed, the feeding amount, the pressing amount, and the like of the abrasive belt, are set.
And the grinding and polishing module 30 is used for grinding and polishing the aero-engine blade according to the blade grinding track based on the preset grinding and polishing process parameters.
The method includes the steps that based on preset grinding and polishing process parameters, a robot grinding and polishing device automatically performs initial grinding and polishing processing according to a blade grinding track, automatically adjusts the blade grinding track according to a method introduced by a preset constant force grinding and polishing algorithm to obtain an adjusted grinding track, and performs grinding and polishing processing on the aero-engine blade according to the adjusted grinding track, so that corrosion points and redundant repair materials on the surface of the blade are removed.
And the determining module 40 is used for determining the machining allowance for the grinding and polishing machining according to the blade measuring track in the grinding and polishing machining process.
It should be understood that, in the grinding and polishing process, when the grinding and polishing process is performed for a preset time, the current height value of the aero-engine blade is obtained according to the blade measurement track, where the preset time may be set by a person skilled in the art, which is not limited in this embodiment, the grinding thickness of the aero-engine blade is calculated according to the current height value, and if the grinding thickness is greater than the maximum grinding amount, the processing allowance for the grinding and polishing process is determined.
And the finishing module 50 is used for finishing the grinding and polishing of the aero-engine blade according to the machining allowance.
The method comprises the steps of comparing the machining allowance with a preset machining allowance, finishing grinding and polishing the blade of the aircraft engine if the machining allowance is larger than the preset machining allowance, and continuing to circularly carry out grinding and polishing processing until the set error range of the machining allowance if the machining allowance is smaller than or equal to the preset machining allowance.
In the embodiment, when a grinding and polishing instruction is received, a blade grinding track and a blade measurement track of an aircraft engine blade are obtained, a preset grinding and polishing process parameter is set, the aircraft engine blade is ground and polished according to the blade grinding track based on the preset grinding and polishing process parameter, in the grinding and polishing process, a machining allowance for grinding and polishing is determined according to the blade measurement track, and the grinding and polishing of the aircraft engine blade is completed according to the machining allowance. Through the arrangement, grinding and polishing and detection of the blades of the aero-engine, the labor cost is reduced, the dependence on the skill level and experience of workers is reduced, and the production efficiency is improved.
In one embodiment, the determining module 40 is further configured to determine a calibration compensation procedure of the aircraft engine blade when the starting instruction is received; and generating a blade grinding track and a blade measuring track of the aero-engine blade according to the calibration compensation procedure.
In an embodiment, the grinding and polishing module 30 is further configured to perform initial grinding and polishing processing on the aero-engine blade according to the blade grinding track based on the preset grinding and polishing process parameter; acquiring a preset constant force grinding and polishing algorithm; adjusting the polishing track of the blade subjected to the initial polishing according to the preset constant force polishing algorithm to obtain an adjusted polishing track; and grinding and polishing the aero-engine blade according to the adjusted grinding track.
In an embodiment, the determining module 40 is further configured to obtain a current height value of the aircraft engine blade according to the blade measurement trajectory at a preset time; calculating the grinding thickness of the aero-engine blade according to the current height value; and if the polishing thickness is larger than the preset polishing thickness, determining the machining allowance for polishing.
In an embodiment, the obtaining module 10 is further configured to obtain an initial height value of the aircraft engine blade; and calculating the grinding thickness of the aero-engine blade according to the initial height value and the current height value.
In an embodiment, the completing module 50 is further configured to compare the machining allowance with a preset machining allowance; and if the machining allowance is larger than the preset machining allowance, finishing the grinding and polishing of the aero-engine blade.
In an embodiment, the grinding and polishing module 30 is further configured to, if the machining allowance is less than or equal to the preset machining allowance, execute the step of grinding and polishing the aero-engine blade according to the blade grinding track based on the preset grinding and polishing process parameter.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in an estimator readable storage medium (such as ROM/RAM, magnetic disk, optical disk) as described above, and includes instructions for enabling an intelligent aero-engine blade polishing device (such as a mobile phone, an estimator, an aero-engine blade polishing device, an air conditioner, or a network aero-engine blade polishing device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The aero-engine blade grinding and polishing method is characterized by comprising the following steps:
when a grinding and polishing instruction is received, a blade grinding track and a blade measuring track of an aircraft engine blade are obtained;
setting preset grinding and polishing process parameters;
grinding and polishing the aero-engine blade according to the blade grinding track based on the preset grinding and polishing process parameters;
in the grinding and polishing process, determining the machining allowance for grinding and polishing according to the blade measuring track;
and finishing the grinding and polishing of the aero-engine blade according to the machining allowance.
2. The aircraft engine blade grinding and polishing method according to claim 1, wherein before the blade grinding track and the blade measurement track of the aircraft engine blade are obtained when the grinding and polishing instruction is received, the method further comprises the following steps:
determining a calibration compensation process of the blade of the aircraft engine when a starting instruction is received;
and generating a blade grinding track and a blade measuring track of the aero-engine blade according to the calibration compensation procedure.
3. The aircraft engine blade grinding and polishing method according to claim 1, wherein the grinding and polishing of the aircraft engine blade according to the blade grinding track based on the preset grinding and polishing process parameters comprises:
carrying out initial grinding and polishing processing on the blade of the aero-engine according to the blade grinding track based on the preset grinding and polishing process parameters;
acquiring a preset constant force grinding and polishing algorithm;
adjusting the polishing track of the blade subjected to the initial polishing according to the preset constant force polishing algorithm to obtain an adjusted polishing track;
and grinding and polishing the aero-engine blade according to the adjusted grinding track.
4. The aircraft engine blade grinding and polishing method according to claim 1, wherein the determining of the machining allowance for grinding and polishing machining according to the blade measurement track in the grinding and polishing machining process comprises:
acquiring the current height value of the blade of the aero-engine according to the blade measuring track at preset time;
calculating the grinding thickness of the aero-engine blade according to the current height value;
and if the polishing thickness is larger than the preset polishing thickness, determining the machining allowance for polishing.
5. The aircraft engine blade burnishing method according to claim 4, wherein said calculating a burnishing thickness of the aircraft engine blade from the current height value comprises:
acquiring an initial height value of the aero-engine blade;
and calculating the grinding thickness of the aero-engine blade according to the initial height value and the current height value.
6. The aircraft engine blade grinding and polishing method according to claim 1, wherein the finishing of the grinding and polishing of the aircraft engine blade according to the machining allowance comprises:
comparing the machining allowance with a preset machining allowance;
and if the machining allowance is larger than the preset machining allowance, finishing the grinding and polishing of the aero-engine blade.
7. An aircraft engine blade grinding and polishing method as defined in claim 6, further comprising, after comparing the machining allowance with the preset machining allowance:
and if the machining allowance is less than or equal to the preset machining allowance, performing the step of grinding and polishing the aero-engine blade according to the blade grinding track based on the preset grinding and polishing technological parameters.
8. The utility model provides an aeroengine blade grinds and throws device which characterized in that, aeroengine blade grinds and throws device includes:
the acquisition module is used for acquiring a blade polishing track and a blade measuring track of the blade of the aircraft engine when a polishing instruction is received;
the setting module is used for setting preset grinding and polishing process parameters;
the grinding and polishing module is used for grinding and polishing the aero-engine blade according to the blade grinding track based on the preset grinding and polishing technological parameters;
the determining module is used for determining the machining allowance for grinding and polishing according to the blade measuring track in the grinding and polishing machining process;
and the finishing module is used for finishing the grinding and polishing of the aero-engine blade according to the machining allowance.
9. The utility model provides an aeroengine blade grinds equipment of throwing which characterized in that, aeroengine blade grinds equipment of throwing includes: a memory, a processor and an aero-engine blade polishing program stored on the memory and executable on the processor, the aero-engine blade polishing program configured with steps to implement the aero-engine blade polishing method as claimed in any one of claims 1 to 7.
10. A storage medium having stored thereon an aircraft engine blade grinding and polishing program which, when executed by a processor, carries out the steps of the aircraft engine blade grinding and polishing method according to any one of claims 1 to 7.
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