Propeller blade static detection equipment and propeller blade static detection method

Abstract

The invention provides propeller blade static detection equipment and a propeller blade static detection method, and relates to the technical field of equipment measurement, and the propeller blade static detection equipment comprises a base, and a clamping mechanism, a pressure detection mechanism and an optical detection mechanism which are arranged on the base; wherein the pressure detection mechanism and the clamping mechanism are arranged at the preset side part of the base; the optical detection mechanism is arranged at the bottom of the base in a sliding manner so as to slide on a plane vertical to the bottom; the clamping mechanism is used for clamping and fixing a to-be-detected paddle, the pressure detection mechanism is used for collecting pressure data of the to-be-detected paddle so as to detect physical attribute parameters of the to-be-detected paddle, and the optical detection mechanism is used for collecting optical data of the to-be-detected paddle so as to detect boundary dimension data of the to-be-detected paddle. According to the method and the device, the paddle measurement time is shortened, and the paddle measurement accuracy is improved.

Description

Technical Field

[0001] The present application relates to the field of equipment measurement technology, and in particular to a static detection method for blades. Background Art

[0002] As a key component of a rotorcraft, the performance of propeller blades directly impacts the aircraft's flight quality and safety. Static testing of propeller blades involves numerous parameters, including blade weight, center of mass, static balance, airfoil tolerance, tip height, pitch angle, and blade length. These parameters are crucial for ensuring the blades' static balance and aerodynamic shape.

[0003] Currently, when measuring rotorcraft blades, different tools are usually used to measure the blades. Therefore, different measuring tools need to be clamped separately before measuring the blades.

[0004] However, repeated clamping of the measuring tool is difficult and takes a long time per piece, which increases the measuring time of the blade. In addition, repeated clamping of the measuring tool affects the measuring accuracy of the measuring tool, resulting in large errors in the measurement of the blade. Summary of the Invention

[0005] The purpose of this application is to provide a propeller blade static detection device and a propeller blade static detection method to address the deficiencies in the above-mentioned prior art, so as to reduce the time for blade measurement and improve the accuracy of blade measurement.

[0006] To achieve the above objectives, the technical solutions adopted in the embodiments of the present application are as follows:

[0007] In a first aspect, an embodiment of the present application provides a propeller blade static detection device, the blade static detection device comprising: a base, a clamping mechanism provided on the base, a pressure detection mechanism, and an optical detection mechanism;

[0008] Wherein, the pressure detection mechanism and the clamping mechanism are arranged on a preset side portion of the base; the optical detection mechanism is slidably arranged on the bottom of the base to slide on a plane perpendicular to the bottom;

[0009] The clamping mechanism is used to clamp and fix the blade to be tested, the pressure detection mechanism is used to collect pressure data of the blade to be tested to detect the physical property parameters of the blade to be tested, and the optical detection mechanism is used to collect optical data of the blade to be tested to detect the external dimension data of the blade to be tested.

[0010] Optionally, the physical property parameter includes: weight; the pressure detection mechanism includes: a first pressure sensor, the first pressure sensor is arranged on the preset side;

[0011] The first pressure sensor is used to collect gravity data of the blade to be measured, so as to calculate the weight of the blade to be measured based on the gravity data.

[0012] Optionally, the physical property parameters further include: center of mass position and static moment;

[0013] The pressure detection structure also includes: a second pressure sensor, which is arranged on the preset side, and the second pressure sensor is used to collect auxiliary pressure data of the blade to be tested, so as to calculate the center of mass position and static moment of the blade to be tested based on the auxiliary pressure data and the weight.

[0014] Optionally, the first pressure sensor is a three-point support pressure sensor, and the second pressure sensor is a knife-edge balanced pressure sensor.

[0015] Optionally, the physical property parameters further include: center of mass position and static moment;

[0016] The pressure detection structure further includes: a first torque sensor, a second torque sensor, and a third torque sensor, wherein the first torque sensor, the second torque sensor, and the third torque sensor are all fixedly arranged on the preset side portion;

[0017] The first torque sensor, the second torque sensor and the third torque sensor are respectively used to collect the first torque data, the second torque data and the third torque data of the blade to be tested, so as to calculate the center of mass position and the static moment of the blade to be tested based on the first torque data, the second torque data and the third torque data.

[0018] Optionally, the external dimension data includes: length, blade tip height, airfoil tolerance and pitch angle;

[0019] The optical detection mechanism includes: a two-dimensional optical component and a three-dimensional optical component;

[0020] Among them, the two-dimensional optical component is used to collect a two-dimensional image of the blade to be measured, so as to determine the length of the blade to be measured based on the two-dimensional image; the three-dimensional optical component is used to collect a three-dimensional point cloud image of the blade to be measured, so as to determine the tip height, airfoil tolerance and pitch angle of the blade to be measured based on the three-dimensional point cloud image.

[0021] Optionally, the clamping mechanism includes: a preset fixing platform and at least one clamp arranged on the preset fixing platform, and the at least one clamp is used to fix and clamp at least one blade of different configuration.

[0022] Optionally, the clamping mechanism further includes: a rotating motor, the rotating motor is arranged on the preset fixed platform, and the at least one clamp is fixedly arranged on the preset fixed platform for changing the posture of the blade to be tested.

[0023] Optionally, the clamping mechanism further includes: a counterweight assembly arranged on the preset fixed platform.

[0024] In a second aspect, another embodiment of the present application provides a blade static detection method, which is applied to a computer device that is communicatively connected to the blade static detection device described in any one of the first aspects. The method includes:

[0025] Acquiring pressure data of the blade to be tested collected by a pressure detection mechanism in the blade static detection equipment and optical data of the blade to be tested collected by an optical detection mechanism;

[0026] determining physical property parameters of the blade to be tested according to the pressure data;

[0027] The external dimension data of the blade to be measured is determined based on the optical data.

[0028] The beneficial effects of this application are:

[0029] The present application provides a propeller blade static detection device and a propeller blade static detection method, the propeller blade static detection device includes: a base, a clamping mechanism arranged on the base, a pressure detection mechanism and an optical detection mechanism; wherein the pressure detection mechanism and the clamping mechanism are arranged on a preset side of the base; the optical detection mechanism is slidably arranged at the bottom of the base to slide on a plane perpendicular to the bottom; the clamping mechanism is used to clamp and fix the blade to be tested, the pressure detection mechanism is used to collect pressure data of the blade to be tested to detect the physical property parameters of the blade to be tested, and the optical detection mechanism is used to collect optical data of the blade to be tested to detect the external dimension data of the blade to be tested. The propeller blade static detection device in the present application integrates the pressure detection structure and the optical detection mechanism on the same device, and can simultaneously detect the physical property parameters and optical data of the blade to be tested, avoiding the problem of repeated clamping of the measuring tool resulting in a long measurement time and inaccurate measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1A schematic structural diagram of a propeller blade static detection device provided in an embodiment of the present application;

[0032] Figure 2 A schematic diagram of a pressure detection mechanism in a static detection device for propeller blades provided in an embodiment of the present application;

[0033] Figure 3 A force analysis diagram of a first pressure sensor provided in an embodiment of the present application;

[0034] Figure 4 A schematic diagram of the structure of an optical detection structure in a static detection device for propeller blades provided in an embodiment of the present application;

[0035] Figure 5 A schematic structural diagram of a clamping mechanism in a propeller blade static detection device provided in an embodiment of the present application;

[0036] Figure 6 A schematic diagram of the structure of a drive circuit in a propeller blade static detection device provided in an embodiment of the present application;

[0037] Figure 7 A schematic flow chart of a blade static detection method provided in an embodiment of the present application. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It should be understood that the drawings in the present application only serve the purpose of illustration and description and are not used to limit the scope of protection of the present application. In addition, it should be understood that the schematic drawings are not drawn to scale. The flowcharts used in this application illustrate the operations implemented according to some embodiments of the present application. It should be understood that the operations of the flowcharts can be implemented out of sequence, and steps without logical context can be reversed or implemented simultaneously. In addition, those skilled in the art, under the guidance of the contents of this application, can add one or more other operations to the flowchart, or remove one or more operations from the flowchart.

[0039] In addition, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application.

[0040] It should be noted that the term "comprising" will be used in the embodiments of the present application to indicate the existence of the features declared thereafter, but does not exclude the addition of other features.

[0041] To clearly describe the propeller blade static detection device provided in the embodiment of the present application, the device provided in the embodiment of the present application is described below with reference to a plurality of drawings. Figure 1 A schematic diagram of the structure of a propeller blade static detection device provided in an embodiment of the present application is shown as follows: Figure 1 As shown, the blade static detection equipment includes: a base 100 , a clamping mechanism 200 arranged on the base, a pressure detection mechanism 300 and an optical detection mechanism 400 .

[0042] The pressure detection mechanism 300 and the clamping mechanism 200 are disposed on a predetermined side of the base 100; the optical detection mechanism 400 is slidably disposed on the bottom of the base, sliding on a plane perpendicular to the bottom. The base 100 is made of a rigid material such as marble, which ensures the overall rigidity and stability of the base 100. The pressure detection mechanism 300 and the clamping mechanism 200 can be disposed on either side of the base 100, and this is not limited in this embodiment of the present application.

[0043] The clamping mechanism 200 is used to clamp and fix the blade to be tested 500, the pressure detection mechanism 300 is used to collect pressure data of the blade to be tested 500 to detect the physical property parameters of the blade to be tested 500, and the optical detection mechanism 400 is used to collect optical data of the blade to be tested 500 to detect the external dimension data of the blade to be tested 500. The clamping mechanism 200 is installed above the pressure detection mechanism 300 to clamp and fix the blade to be tested 500, so that the pressure detection mechanism 300 collects the pressure data of the blade to be tested 500. The clamping mechanism 200 can fix the blade to be tested 500 by setting a clamping part to fix the blade to be tested 500 in the clamping mechanism 200, and connect the blade to be tested 500 to the fixed part of the clamping mechanism 200 by screws.

[0044] The present application provides a propeller blade static detection device, which includes: a base, a clamping mechanism arranged on the base, a pressure detection mechanism, and an optical detection mechanism; wherein the pressure detection mechanism and the clamping mechanism are arranged on a preset side of the base; the optical detection mechanism is slidably arranged at the bottom of the base to slide on a plane perpendicular to the bottom; the clamping mechanism is used to clamp and fix the blade to be tested, the pressure detection mechanism is used to collect pressure data of the blade to be tested to detect the physical property parameters of the blade to be tested, and the optical detection mechanism is used to collect optical data of the blade to be tested to detect the external dimension data of the blade to be tested. The propeller blade static detection device in the present application integrates the pressure detection structure and the optical detection mechanism on the same device, and can simultaneously detect the physical property parameters and optical data of the blade to be tested, thereby avoiding the problem of repeated clamping of the measuring tool resulting in a long measurement time and inaccurate measurement.

[0045] Based on the above embodiment, the physical property parameters include: weight. To this end, the present application provides a schematic diagram of a pressure detection mechanism in a static detection device for a propeller blade. Figure 2 A schematic diagram of a pressure detection mechanism in a static detection device for a propeller blade provided in an embodiment of the present application is shown as follows: Figure 2 As shown, the pressure detection mechanism 300 includes: a first pressure sensor 301, and the first pressure sensor 301 is arranged on a preset side;

[0046] The first pressure sensor 301 is used to collect gravity data of the blade 500 to be tested, so as to calculate the weight of the blade 500 to be tested based on the gravity data.

[0047] The first pressure sensor 301 is a three-point support type pressure sensor. Specifically, the first pressure sensor 301 includes three pressure sensors, and the three pressure sensors are spaced at equal intervals to form an equilateral right triangle.

[0048] Optionally, sensor data of the three pressure sensors in the first pressure sensor 301 when the blade to be tested 500 is not placed is obtained as the first weight data, and sensor data of the three pressure sensors in the first pressure sensor 301 when the blade to be tested 500 is placed is obtained as the second weight data, and the weight of the blade to be tested 500 is obtained by subtracting the second weight data from the first weight data.

[0049] In this embodiment, the first pressure sensor is a three-point support type, positioned on a predetermined side. The first pressure sensor is used to collect gravity data from the blade under test and calculate its weight based on this data. This method simplifies the measurement process by collecting gravity data to calculate the weight of the blade under test, ensuring that the three support points provide optimal support and reducing measurement errors caused by uneven installation.

[0050] Based on the above embodiment, the physical property parameters also include: center of mass position and static moment; Figure 2 As shown, the pressure detection structure 300 also includes: a second pressure sensor 302, which is arranged on a preset side, and the second pressure sensor 302 is used to collect auxiliary pressure data of the blade 500 to be tested, so as to calculate the center of mass position and static moment of the blade 500 to be tested based on the auxiliary pressure data and weight.

[0051] The second pressure sensor 302 is a knife-edge balanced pressure sensor, and the second pressure sensor 302 includes a knife edge and a pressure sensor.

[0052] The second pressure sensor 302 is installed between the first pressure sensor 301 and the clamping mechanism 200 .

[0053] Optionally, the second pressure sensor 302 obtains the first auxiliary pressure data F without the blade 500 to be tested. K , the second auxiliary pressure data F after the blade is placed, and the distance L between the sensor position of the second pressure sensor 302 and the blade edge K .

[0054] Optionally, according to the first auxiliary pressure data F K , the second auxiliary pressure data F, the distance between the sensor position and the blade position L K And weight M 桨 , the X-axis centroid coordinate of the blade 500 to be tested is calculated by the preset formula (1).

[0055]

[0056] Optionally, the product of the X-axis center of mass coordinate of the blade 500 to be measured and the weight of the blade to be measured is used as the static distance.

[0057] In this embodiment of the present application, the second pressure sensor is a knife-edge balanced pressure sensor. This second pressure sensor is used to collect auxiliary pressure data from the blade under test. Based on this auxiliary pressure data and weight, the center of mass position and static moment of the blade under test are calculated. This second pressure sensor allows the present application to quickly capture pressure changes on the blade under test in different states, thereby more accurately calculating the center of mass position and static moment.

[0058] Based on the above embodiment, the physical property parameters also include: center of mass position and static moment. Figure 2 In the figure, the pressure detection structure further includes: a first torque sensor, a second torque sensor and a third torque sensor, and the first torque sensor, the second torque sensor and the third torque sensor are all fixedly arranged on a preset side (not shown in the figure).

[0059] The first torque sensor, the second torque sensor, and the third torque sensor are respectively used to collect the first torque data, the second torque data, and the third torque data of the blade to be tested, so as to calculate the center of mass position and the static moment of the blade to be tested based on the first torque data, the second torque data, and the third torque data. The first torque sensor, the second torque sensor, and the third torque sensor are respectively used to collect the torques of the three pressure sensors in the first pressure sensor 301, so as to calculate the X-axis center of mass coordinate and the static distance of the blade to be tested 500 based on the pressures of the three pressure sensors in the first pressure sensor 301 and the torques of the three pressure sensors in the first pressure sensor 301. The calculation process of the Y-axis center of mass coordinate is the same as that of the X-axis center of mass coordinate, which will not be described in detail in this embodiment of the application.

[0060] For example, Figure 3 A force analysis diagram of a first pressure sensor provided in an embodiment of the present application is shown as follows: Figure 3 As shown, the pressures G1, G2 and G3 of the three pressure sensors when the blade to be tested is not placed, the torques X1, X2 and X3 of the three pressure sensors, M1 is the force of the clamping mechanism when the blade to be tested is not placed, and X1 is the center of mass coordinate of the clamping mechanism when the blade to be tested is not placed.

[0061] After the blade to be tested is placed, the pressure of the three pressure sensors G1 is not placed ′ , G2 ′ and G3 ′ The torques X1, X2, and X3 of the three pressure sensors are M2, the force of the clamping mechanism when the blade to be tested is placed, and X2 is the coordinate of the center of mass of the clamping mechanism when the blade to be tested is placed. According to the principle of force balance and the preset formulas (2)-(4), the coordinate of the center of mass of the X axis can be determined.

[0062] M2×X2=G1 ′ ×X1+G2 ′ ×X2+G3 ′ ×X3(2)

[0063] M1×X1=G1×X1+G2×X2+G3×X3(3)

[0064]

[0065] Optionally, the product of the X-axis center of mass coordinate of the blade 500 to be measured and the weight of the blade to be measured is used as the static distance.

[0066] Optionally, the X-axis center of mass coordinate and the static distance can be determined by the second pressure sensor, and the Y-axis center of mass coordinate can be determined by the first torque sensor, the second torque sensor and the third torque sensor, thereby determining the center of mass of the blade to be measured.

[0067] In an embodiment of the present application, the first torque sensor, the second torque sensor, and the third torque sensor are used to collect first torque data, second torque data, and third torque data of the blade to be tested, respectively, to calculate the center of mass position and static moment of the blade to be tested based on the first torque data, the second torque data, and the third torque data. This application can more comprehensively reflect the weight distribution of an object and more accurately determine the center of mass position.

[0068] Based on the above embodiment, the external dimension data includes: length, blade tip height, airfoil tolerance and pitch angle. To this end, the present application provides a structural schematic diagram of the optical detection structure in a static detection device for a propeller blade. Figure 4 This is a schematic diagram of the structure of an optical detection structure in a static detection device for a propeller blade provided in an embodiment of the present application, as shown in FIG. Figure 4 As shown, the optical detection mechanism 400 includes: a two-dimensional optical component 401 and a three-dimensional optical component 402;

[0069] Among them, the two-dimensional optical component 401 is used to collect a two-dimensional image of the blade to be tested, so as to determine the length of the blade to be tested based on the two-dimensional image; the three-dimensional optical component 402 is used to collect a three-dimensional point cloud image of the blade to be tested, so as to determine the tip height, airfoil tolerance and pitch angle of the blade to be tested based on the three-dimensional point cloud image.

[0070] The two-dimensional optical assembly 401 is disposed between the three-dimensional optical assembly 402, and the three-dimensional optical assembly 402 is respectively installed above and below the optical detection mechanism 400. The length of the blade to be tested is the straight-line distance from the root to the tip of the blade, the tip height of the blade to be tested is the height of the blade tip relative to the horizontal plane, the airfoil tolerance of the blade to be tested is the deviation between the actual size of the blade airfoil and the designed size, and the pitch angle of the blade to be tested is the angle between the blade chord and the rotation plane.

[0071] Optionally, two-dimensional optical assembly 401 captures a two-dimensional image of the blade to be tested. The centers of the two bushing holes of the blade are set to points A and B, respectively. Point A is set to be the origin O of the blade coordinate system. The direction from O to B is set to be the positive direction of the Y axis. The direction perpendicular to the Y axis and pointing to the blade tip is set to be the positive direction of the X axis. The blade tip plane profile obtained in the two-dimensional image is curve C. The two bushing holes of the blade are used to connect the blade to the hub and are respectively provided at the root of the blade.

[0072] Take point O as the origin, the direction from O to B as the positive Y-axis direction, and the direction perpendicular to the Y-axis and pointing toward the blade tip as the positive X-axis direction. Use the blade tip profile obtained from the 2D image as curve C. Using the Y-axis as the reference, find a line L parallel to and tangent to curve C. Let the point where line L and curve C meet be P. Take the coordinate xP of point P on the X-axis. Define xP as the length of the blade.

[0073] Alternatively, use a 3D optical component to scan the blade bushing surface, obtain 3D data of the bushing surface, determine plane S, and scan the blade's position at the 0.98R section using the 3D optical component. Find the highest point on the 0.98R section. Draw a perpendicular line from the highest point to the bushing surface S, with the intersection of the perpendicular line and the bushing surface S at point P. Calculate the distance h from the highest point to point P. This distance is the height of the blade tip relative to the bushing surface. Add h to the constant c to obtain the blade tip height.

[0074] Optionally, a three-dimensional point cloud image of the blade to be tested is collected through a three-dimensional optical component to obtain a preset point cloud image of the blade to be tested, wherein the preset point cloud image is a point cloud image constructed during the design process of the blade to be tested. From the three-dimensional point cloud image and the preset point cloud image, the three points with the closest coordinates are determined, and the actual fitting curve and the preset fitting curve are fitted respectively. The actual fitting curve and the preset fitting curve are compared to determine the airfoil tolerance.

[0075] Optionally, the actual coordinates of the leading edge endpoint and the trailing edge endpoint of the blade to be tested in the three-dimensional point cloud image of the blade to be tested are collected by the three-dimensional optical component, and the pitch angle is calculated by inverse trigonometric function. If the airfoil tolerance is less than a preset threshold, the pitch angle is qualified, otherwise the pitch angle is unqualified.

[0076] Specifically, since the blade to be measured is measured in a horizontal plane, the horizontal coordinates of the actual coordinates of the leading edge endpoint and the actual coordinates of the trailing edge endpoint of the blade to be measured are the same. Therefore, according to the vertical axis y-axis in the actual coordinates of the leading edge endpoint and the actual coordinates of the trailing edge endpoint of the blade to be measured and the normal axis z-axis, the pitch angle of the blade to be measured is calculated through the actual coordinates (y1, z1) of the leading edge endpoint of the blade to be measured, the actual coordinates (y2, z2) of the trailing edge endpoint of the blade to be measured and the preset formula (5).

[0077]

[0078] In an embodiment of the present application, the optical detection mechanism includes a two-dimensional optical component and a three-dimensional optical component. The two-dimensional optical component is used to capture a two-dimensional image of the blade to be measured to determine the length of the blade to be measured based on the two-dimensional image; the three-dimensional optical component is used to capture a three-dimensional point cloud image of the blade to be measured to determine the tip height, airfoil tolerance, and pitch angle of the blade to be measured based on the three-dimensional point cloud image. The present application can capture high-resolution two-dimensional images through the two-dimensional optical component to clearly display the details of the blade to be measured, and the three-dimensional optical component can capture a three-dimensional point cloud image of the blade to be measured, thereby improving the accuracy of the measurement of the blade to be measured, and providing planar and three-dimensional detection data at the same time, so as to more comprehensively evaluate the quality of the blade to be measured.

[0079] On the basis of the above embodiments, the present application further provides a structural diagram of a clamping mechanism in a static detection device for propeller blades. Figure 5 A schematic diagram of the structure of a clamping mechanism in a static detection device for a propeller blade provided in an embodiment of the present application is shown in FIG. Figure 5 As shown, the clamping mechanism 200 includes: a preset fixing platform 201 and at least one clamp 202 arranged on the preset fixing platform, and the at least one clamp 202 is used to fix and clamp at least one blade of different configurations.

[0080] The clamp 202 may be a double-sided opening and closing clamp, a flexible clamping mechanism, or a soft material clamp, and this embodiment of the present application does not impose any restrictions on this.

[0081] Optionally, the clamping mechanism 200 further includes: a rotating motor 203 , which is disposed on a preset fixed platform 201 , and at least one clamp 202 is fixedly disposed on the preset fixed platform 201 for changing the posture of the blade to be tested.

[0082] Optionally, the clamping mechanism 200 further includes: a counterweight assembly 204 disposed on the preset fixed platform 201 .

[0083] The counterweight assembly 204 is used to ensure that the center of mass of the clamping mechanism 200 is within the range of the first pressure sensor both when the blade 500 to be tested is clamped and when the blade 500 to be tested is not clamped.

[0084] In an embodiment of the present application, the clamping structure includes a clamp, a rotating motor and a counterweight assembly. The clamp in the present application can provide stable fixation to ensure the position accuracy of the blade during the inspection or processing process. The rotating motor can quickly adjust the posture of the blade as needed, and the counterweight assembly can maintain the accuracy of the blade measurement.

[0085] Optionally, based on the above embodiment, the blade static detection device further includes: a driving circuit and a control circuit, Figure 6 This is a structural diagram of a drive circuit in a propeller blade static detection device provided in an embodiment of the present application, such as Figure 6 As shown, the drive circuit is connected to the power supply through N (neutral line), L (live line), and E (ground line). The X-axis driver XA probe and the Y-axis driver XA probe in the drive circuit are respectively connected to the optical detection mechanism, so that the optical detection mechanism moves along the X-axis and Y-axis at the bottom of the base. The W-axis driver power connector is connected to the upper part of the optical detection mechanism, so that the three-dimensional optical component can move in the W-axis direction. The J-axis driver power connector is connected to the clamping mechanism, so that the rotating motor in the clamping mechanism moves in the J-axis. The OUT signal in the limit is used to control the moving distance of the optical detection mechanism in the positive and negative directions of the X-axis, Y-axis, and Z-axis, and the rotation degree of the clamping mechanism in the W-axis and U-axis. The control circuit in this application is connected to the power supply in the blade static detection device, and the control circuit is connected to the sensor in the blade static detection device. The movement degree of each device is determined by detecting the signal of the sensor, and an emergency stop switch is set to control the movement degree of each device in the blade static detection device.

[0086] Based on the same inventive concept, an embodiment of the present application further provides a blade static detection method for a computer device that is communicatively connected to the blade static detection device. Figure 7 A schematic diagram of a blade static detection method provided in an embodiment of the present application is shown in FIG. Figure 7 As shown, the method includes:

[0087] Step 701: Obtain pressure data of the blade to be tested collected by a pressure detection mechanism in a blade static detection device and optical data of the blade to be tested collected by an optical detection mechanism.

[0088] The pressure data includes: gravity data of the blade to be tested and auxiliary pressure data of the blade to be tested. The optical data includes: a two-dimensional image and a three-dimensional point cloud image of the blade to be tested.

[0089] Optionally, the gravity data of the blade to be tested is collected by a first pressure sensor in the pressure detection structure, and the auxiliary pressure data of the blade to be tested is collected by a second pressure sensor in the pressure detection structure.

[0090] Optionally, a two-dimensional image of the blade to be tested is collected by a two-dimensional optical component in the optical detection mechanism, and a three-dimensional point cloud image of the blade to be tested is collected by a three-dimensional optical component in the optical detection mechanism.

[0091] Step 702: Determine the physical property parameters of the blade to be tested based on the pressure data.

[0092] Among them, the physical property parameters include: weight, center of mass position and static distance.

[0093] Optionally, the weight of the two pages to be measured is calculated based on the gravity data of the blade to be measured collected by the first pressure sensor. The specific calculation process has been described in detail above and will not be repeated here.

[0094] Optionally, the center of mass position and static moment of the blade to be tested are calculated based on the auxiliary pressure data and weight of the blade to be tested collected by the second pressure sensor. The specific calculation process has been described in detail above and will not be repeated here.

[0095] Step 703: Determine the external dimensions of the blade to be measured based on the optical data.

[0096] Among them, the external dimensions include: length, blade tip height, airfoil tolerance and pitch angle.

[0097] Optionally, the length of the blade to be measured is determined based on the two-dimensional image collected by the two-dimensional optical component. The specific calculation process has been described in detail above and will not be repeated here.

[0098] Optionally, the tip height, airfoil tolerance, and pitch angle of the blade to be measured are determined based on the 3D point cloud image collected by the 3D optical microscope. The specific calculation process has been described in detail above and will not be repeated here.

[0099] The present application provides a blade static detection method, which obtains pressure data of the blade to be tested collected by a pressure detection mechanism in a blade static detection device and optical data of the blade to be tested collected by an optical detection mechanism; determines the physical property parameters of the blade to be tested based on the pressure data; and determines the external dimension data of the blade to be tested based on the optical data. By providing a blade static detection device, the present application can simultaneously measure the physical property parameters and external dimension data of the blade, avoiding the problem of setting up multiple measurement tools and clamping multiple measurement tools, which leads to excessive measurement time and inaccurate measurements.

[0100] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the system and device described above can refer to the corresponding process in the method embodiment, and will not be repeated in this application. In the several embodiments provided in this application, it should be understood that the disclosed system, device and method can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the modules is only a logical function division. There may be other division methods in actual implementation. For example, multiple modules or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, indirect coupling or communication connection of devices or modules, which can be electrical, mechanical or other forms.

[0101] In addition, the functional units in the various embodiments of the present application can be integrated into a processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0102] The above is only a specific implementation method of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed in this application, which should be covered by the protection scope of the present application.

Claims

1. A static detection device for propeller blades, characterized in that: The blade static detection equipment includes: a base, a clamping mechanism provided on the base, a pressure detection mechanism, and an optical detection mechanism; Wherein, the pressure detection mechanism and the clamping mechanism are arranged on a preset side portion of the base; the optical detection mechanism is slidably arranged on the bottom of the base to slide on a plane perpendicular to the bottom; The clamping mechanism is used to clamp and fix the blade to be tested, the pressure detection mechanism is used to collect pressure data of the blade to be tested to detect the physical property parameters of the blade to be tested, and the optical detection mechanism is used to collect optical data of the blade to be tested to detect the external dimension data of the blade to be tested.

2. The device according to claim 1, characterized in that The physical property parameter includes: weight; the pressure detection mechanism includes: a first pressure sensor, the first pressure sensor is arranged on the preset side; The first pressure sensor is used to collect gravity data of the blade to be measured, so as to calculate the weight of the blade to be measured based on the gravity data.

3. The device according to claim 2, characterized in that The physical property parameters also include: center of mass position and static moment; The pressure detection structure also includes: a second pressure sensor, which is arranged on the preset side, and the second pressure sensor is used to collect auxiliary pressure data of the blade to be tested, so as to calculate the center of mass position and static moment of the blade to be tested based on the auxiliary pressure data and the weight.

4. The device according to claim 3, characterized in that The first pressure sensor is a three-point support type pressure sensor, and the second pressure sensor is a knife-edge balanced type pressure sensor.

5. The device according to claim 2, characterized in that The physical property parameters also include: center of mass position and static moment; The pressure detection structure further includes: a first torque sensor, a second torque sensor, and a third torque sensor, wherein the first torque sensor, the second torque sensor, and the third torque sensor are all fixedly arranged on the preset side portion; The first torque sensor, the second torque sensor and the third torque sensor are respectively used to collect the first torque data, the second torque data and the third torque data of the blade to be tested, so as to calculate the center of mass position and the static moment of the blade to be tested based on the first torque data, the second torque data and the third torque data.

6. The device according to claim 1, characterized in that The external dimension data include: length, blade tip height, airfoil tolerance and blade pitch angle; The optical detection mechanism includes: a two-dimensional optical component and a three-dimensional optical component; Among them, the two-dimensional optical component is used to collect a two-dimensional image of the blade to be measured, so as to determine the length of the blade to be measured based on the two-dimensional image; the three-dimensional optical component is used to collect a three-dimensional point cloud image of the blade to be measured, so as to determine the tip height, airfoil tolerance and pitch angle of the blade to be measured based on the three-dimensional point cloud image.

7. The device according to claim 1, characterized in that The clamping mechanism includes: a preset fixing platform and at least one clamp arranged on the preset fixing platform, and the at least one clamp is used to fix and clamp at least one blade of different configurations.

8. The device according to claim 7, characterized in that The clamping mechanism further includes a rotating motor, which is disposed on the preset fixed platform. The at least one clamp is fixedly disposed on the preset fixed platform and is used to change the posture of the blade to be tested.

9. The device according to claim 7, characterized in that The clamping mechanism further includes: a counterweight assembly arranged on the preset fixed platform.

10. A blade static detection method, characterized in that: The method is applied to a computer device that is communicatively connected to the blade static detection device according to any one of claims 1 to 9, the method comprising: Acquiring pressure data of the blade to be tested collected by a pressure detection mechanism in the blade static detection equipment and optical data of the blade to be tested collected by an optical detection mechanism; determining physical property parameters of the blade to be tested according to the pressure data; The external dimension data of the blade to be measured is determined based on the optical data.

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