Non-contact attitude and orbit control gas valve group stroke automatic measuring device and method

Abstract

The invention discloses a device and a method for automatically measuring the stroke of a non-contact attitude and orbit control gas valve group. The device is characterized by comprising an attitude and orbit control gas valve group stroke automatic measurement module, a data acquisition system (6) and an upper computer (7), and the attitude and orbit control gas valve group stroke automatic measurement module comprises a measurement platform (1), a reference correction block (2), a sensor supporting rod (3), a sensor mounting bracket (4), a laser displacement sensor (5) and an attitude and orbit control gas valve group (10). The stroke measuring module is used for measuring the stroke of an attitude and orbit control gas valve group (10); the data acquisition system (6) is used for data acquisition; and the upper computer (7) is used for analyzing and processing data. According to the invention, high-precision and high-efficiency automatic measurement of the stroke of the valve core assembly in the gas valve group is realized, and the problems of measurement reference deviation, large measurement error, low efficiency and the like caused by manual measurement of the movement stroke of the valve core assembly by using a depth micrometer are solved.

Description

Technical Field

[0001] The present invention relates to the field of intelligent automatic measurement technology, and in particular to a non-contact attitude and track control gas valve group stroke automatic measurement device and method. Background Art

[0002] The attitude and orbit control system has the ability to perform large maneuvering orbit changes and rapid attitude adjustment power, and is often used in kinetic interceptors. The attitude and orbit control gas valve group is a key component that controls the attitude and orbit control engine to achieve attitude control and orbit adjustment during the flight of the aircraft. The control capability of the attitude and orbit control gas valve group has an important impact on the performance of the attitude and orbit control engine. Therefore, the mechanical movement of the attitude and orbit control gas valve group must meet the requirements of fast and accurate response effects in order to quickly and accurately adjust the engine's pitch, yaw and roll attitude control systems and the trajectory control system of lateral maneuvering flight. The mechanical movement of the attitude and orbit control gas valve group refers to the linear movement of the two groups of four valve core assemblies distributed in a cross shape inside it. The attitude and trajectory of the attitude and orbit control engine are corrected by controlling the movement of the two groups of valve core assemblies.

[0003] During the assembly process of the attitude and rail controlled gas valve group, the valve core assembly is generally driven to move through an electronically controlled integrated test platform, and the movement stroke of the valve core assembly is measured with a depth micrometer to determine whether the attitude and rail controlled gas valve group meets the design index requirements. However, there are the following problems when manually measuring the stroke of the valve core assembly with a depth micrometer: the depth micrometer is deformed due to the impact force of the valve core assembly movement, resulting in inaccurate measurement; the measurement error caused by the reference deviation is large; the valve core assembly stroke in four directions is completed in four times, which is inefficient; the measured data needs to be recorded manually, etc.

[0004] Therefore, it is necessary to develop a non-contact attitude and track control gas valve group stroke automatic measurement method and device to solve the above problems. Summary of the invention

[0005] The technical problems to be solved by the present invention include the problems of measurement reference deviation, large measurement error, low efficiency, etc. that exist when manually measuring the movement stroke of the valve core assembly with a depth micrometer. The purpose is to achieve high-precision and high-efficiency automatic measurement of the valve core assembly of the attitude and track control gas valve group.

[0006] The present invention provides a non-contact type attitude and track control gas valve group stroke automatic measurement device, which is characterized by comprising an attitude and track control gas valve group stroke automatic measurement module, a data acquisition system 6, and a host computer 7.

[0007] The automatic stroke measurement module of the attitude and track control gas valve group includes a measurement platform 1, a reference correction block 2, a sensor support rod 3, a sensor mounting bracket 4, a laser displacement sensor 5, and an attitude and track control gas valve group 10, which is used to measure the stroke of the attitude and track control gas valve group 10;

[0008] A circular groove is provided in the middle of the measuring platform 1, and a cross slide is provided in the circular groove for positioning the attitude and track control gas valve group 10; the reference correction block 2 is installed in the cross slide of the measuring platform 1, and four reference correction blocks 2 are cross-distributed, and are used to correct the end face measurement reference of the valve core assembly of the attitude and track control gas valve group 10; the sensor support rod 3 is fixed on the four sides of the measuring platform 1, and the sensor mounting bracket 4 is installed on the sensor support rod 3, and the sensor mounting bracket 4 is used to install the laser displacement sensor 5, and the sensor mounting bracket 4 moves up and down along the sensor support rod 3 until the laser beam of the laser displacement sensor 5 can shine on the end face of the valve core assembly;

[0009] The data acquisition system 6 is connected to the attitude and track control gas valve group stroke automatic measurement module for data collection;

[0010] The host computer 7 is connected to the data acquisition system 6 for data analysis and processing.

[0011] Furthermore, the data acquisition system 6 is connected to the attitude and track control gas valve group stroke automatic measurement module via the signal transmission line 8 , and the host computer 7 is connected to the data acquisition system 6 via the data transmission line 9 .

[0012] Furthermore, the four sides of the measuring platform 1 are respectively provided with square grooves, which are centrally symmetrical with respect to the square grooves on the two sides; there are four sensor support rods 3, which are respectively fixed on the square grooves.

[0013] Furthermore, the reference correction block 2 is an "L"-shaped structure.

[0014] Furthermore, the sensor mounting bracket 4 is a hollow "U"-shaped groove.

[0015] Furthermore, the data acquisition system 6 is connected to the four laser displacement sensors 5 using the four signal transmission lines 8 respectively, so as to simultaneously acquire signals from the four laser displacement sensors 5 .

[0016] Furthermore, the host computer 7 is installed with data processing and control software for issuing motion instructions to the drive unit of the attitude and track control gas valve group 10.

[0017] Furthermore, the host computer 7 analyzes and processes the data collected by the data acquisition system 6 to display the movement stroke of the four valve core components of the attitude and track control gas valve group 10.

[0018] The present invention also provides a non-contact attitude and track control gas valve group stroke automatic measurement method, characterized in that it uses the above-mentioned non-contact attitude and track control gas valve group stroke automatic measurement device, and the method comprises the following steps:

[0019] Step S1: placing the attitude and track control gas valve group 10 to be measured in the circular groove of the measuring platform 1, and roughly positioning the attitude and track control gas valve group 10 according to the positions of the circular groove and the cross slide rail;

[0020] Step S2: adjusting the height position of the sensor support frame 4 on the sensor support rod 3 according to the height of the valve core assembly of the attitude and rail control gas valve group 10, and ensuring that the laser beam of the laser displacement sensor 5 shines on the end surface of the valve core assembly;

[0021] Step S3: Move the reference calibration block 2 and rotate the attitude and track control gas valve group 10 until the four cross-distributed reference calibration blocks 2 are fitted with the four planes of the attitude and track control gas valve group 10 distributed in the cross direction, thus completing the axial reference calibration between the laser beam of the laser displacement sensor 5 and the valve core assembly of the attitude and track control gas valve group 10;

[0022] Step S4: issuing a motion instruction to the driving component of the attitude and track control gas valve group 10;

[0023] Step S5: the driving component of the attitude and track control gas valve group 10 drives the valve core component inside the attitude and track control gas valve group 10 to move;

[0024] Step S6: the laser displacement sensor 5 captures the displacement of the valve core assembly and transmits the data to the data acquisition system 6;

[0025] Step S7: the data acquisition system 6 transmits the collected data to the host computer 7;

[0026] Step S8: the data analysis software of the host computer processes the collected data and displays the movement stroke of the valve core assembly of the attitude and track control gas valve group 10.

[0027] Furthermore, in step S2, the height positions of the four sensor support frames 4 on the four sensor support rods 3 are respectively adjusted according to the height of the valve core assembly of the attitude and track control gas valve group 10, so as to ensure that the laser beams of the four laser displacement sensors 5 are irradiated on the end surface of the valve core assembly; the four sensor support frames 4 are located on four sides of the measuring platform 1, and are centrally symmetrical with respect to the sensor support frames 4 on two sides;

[0028] In step S4, a motion instruction is issued to the driving component of the attitude and track control gas valve group 10 through the data processing and control software deployed on the host computer 7;

[0029] In step S6, four laser displacement sensors 5 respectively capture the displacement of the valve core assembly and transmit the data to the data acquisition system 6 respectively;

[0030] In step S8, the host computer displays the movement stroke of the four valve core components of the attitude and track control gas valve group 10.

[0031] The present invention realizes high-precision and high-efficiency automatic measurement of the stroke of the valve core assembly inside the gas valve group, and solves the problems of measurement reference deviation, large measurement error, low efficiency, etc. in manual measurement of the movement stroke of the valve core assembly with a depth micrometer.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] (1) By adopting the non-contact measurement method, there is no direct contact between the laser displacement sensor and the valve core assembly, the moving part of the attitude and orbit control gas valve group, which completely avoids the problem of micrometer deformation caused by the impact force of the valve core assembly during contact measurement, thereby improving the accuracy of the valve core assembly stroke measurement.

[0034] (2) The non-contact measuring device used in this device is equipped with a reference correction block. Before measurement, the axial reference of the valve core assembly of the attitude and rail control gas valve group is corrected to ensure that the laser beam of the laser displacement sensor is parallel to the axial reference of the valve core assembly of the attitude and rail control gas valve group, thereby solving the problem of inaccurate stroke measurement caused by reference deviation.

[0035] (3) The device uses four laser displacement sensors to simultaneously measure the strokes of four valve core assemblies distributed in a cross shape, which solves the problem of using a depth micrometer four times to complete the movement of the four valve core assemblies, thereby greatly improving the measurement efficiency.

[0036] (4) The signal of the laser displacement sensor is transmitted to the data acquisition system through the signal transmission line. The data acquisition system sends the data to the host computer through the data transmission line. The host computer software performs data analysis and displays the stroke of the attitude and track control gas valve group. The stroke data is stored for easy data tracing. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions disclosed in the present invention, the following briefly introduces the drawings required to be used in some embodiments disclosed in the present invention. Obviously, the drawings described below are only drawings of some embodiments disclosed in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams, and are not limitations on the actual size of the products involved in the embodiments disclosed in the present invention, the actual process of the method, etc.

[0038] Figure 1It is a schematic diagram of the non-contact type attitude and track control gas valve group stroke automatic measuring device of the present invention.

[0039] Figure 2 It is a top view of the measuring platform of the present invention.

[0040] Figure 3 It is an axonometric diagram of the measuring platform of the present invention.

[0041] Figure 4 It is an axonometric view of the benchmark correction block of the present invention.

[0042] Figure 5 It is an axonometric view of the sensor support rod of the present invention.

[0043] Figure 6 It is an axonometric view of the sensor mounting bracket of the present invention.

[0044] Figure 7 The present invention discloses a stroke measurement method and a process.

[0045] The accompanying drawings are marked as follows: 1. Measuring platform; 2. Reference correction block; 3. Sensor support rod; 4. Sensor mounting bracket; 5. Laser displacement sensor; 6. Data acquisition system; 7. Host computer; 8. Signal transmission line; 9. Data transmission line; 10. Attitude and track control gas valve group. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0047] The present invention can be used for measuring the stroke of a valve core component of an attitude and rail control gas valve group.

[0048] Figure 1 Schematic diagram of the non-contact type attitude and track control gas valve group stroke automatic measurement device of the present invention. Figure 1 As shown, the non-contact attitude and track control gas valve group stroke automatic measurement device of the present invention includes an attitude and track control gas valve group stroke automatic measurement module, a data acquisition system 6, a host computer 7, a signal transmission line 8, and a data transmission line 9, wherein:

[0049] The attitude and track control gas valve group stroke automatic measurement module includes a measurement platform 1, a reference correction block 2, a sensor support rod 3, a sensor mounting bracket 4, a laser displacement sensor 5, and an attitude and track control gas valve group 10, which is used to measure the attitude and track control gas valve group stroke;

[0050] The data acquisition system 6 is connected to the attitude and track control gas valve group stroke automatic measurement module through the signal transmission line 8 for data acquisition;

[0051] The host computer 7 is connected to the data acquisition system 6 via a data transmission line 9 for data analysis and processing.

[0052] Figure 2 It is a top view of the measuring platform of the present invention. Figure 3 It is an axonometric diagram of the measuring platform of the present invention. Figure 2 , 3 As shown, the four sides of the measuring platform 1 are respectively provided with square grooves, which are centrally symmetrical with respect to the square grooves on two sides. A circular groove is also provided in the middle of the measuring platform 1, and a cross slide rail is provided in the circular groove for positioning the attitude rail control gas valve group 10.

[0053] Figure 4 This is the isometric view of the reference correction block of the present invention. Figure 4 As shown, the reference correction block 2 can be an "L"-shaped structure, installed in the cross slide rail of the measuring platform 1, and is used to correct the end face measurement reference of the valve core assembly of the attitude and track control gas valve group 10.

[0054] Figure 5 This is an isometric view of the sensor support rod of the present invention. Figure 5 There are four sensor support rods 3 shown, which are respectively fixed on the square grooves on the four sides of the measuring platform 1. The sensor mounting bracket 4 is mounted on the sensor support rod 3.

[0055] Figure 6 This is an axonometric diagram of the sensor mounting bracket of the present invention. Figure 6 As shown, the sensor mounting bracket 4 is a hollow “U”-shaped groove for mounting the laser displacement sensor 5 .

[0056] The sensor mounting bracket 4 can be moved up and down along the sensor support rod 3 until the laser beam of the laser displacement sensor 5 can shine on the end face of the valve core assembly. The data acquisition system 6 is connected to the four laser displacement sensors 5 using four signal transmission lines 8 respectively, so as to simultaneously collect signals from the four laser displacement sensors 5. The host computer 7 is installed with data processing and control software, which is used to issue motion instructions to the drive unit of the attitude and track control gas valve group 10. The host computer 7 analyzes and processes the data collected by the data acquisition system 6 to display the motion stroke of the four valve core assemblies of the attitude and track control gas valve group 10.

[0057] Figure 7 This is the stroke measurement method and process of the present invention. Figure 7As shown, a non-contact attitude and track control gas valve group stroke automatic measurement method of the present invention uses the above-mentioned non-contact attitude and track control gas valve group stroke automatic measurement device, specifically comprising the following steps:

[0058] Step S1: placing the attitude and track control gas valve group 10 to be measured in the circular groove of the measuring platform 1, and roughly positioning the attitude and track control gas valve group 10 according to the positions of the circular groove and the cross slide rail;

[0059] Step S2: adjusting the height positions of the four sensor support frames 4 on the four sensor support rods 3 according to the height of the valve core assembly of the attitude and rail control gas valve group 10, respectively, to ensure that the laser beams of the four laser displacement sensors 5 are irradiated on the end surface of the valve core assembly;

[0060] Step S3: Move the reference calibration block 2 and rotate the attitude and track control gas valve group 10 until the four cross-distributed reference calibration blocks 2 are fitted with the four planes of the attitude and track control gas valve group 10 distributed in the cross direction, thus completing the axial reference calibration of the laser displacement sensor laser beam and the valve core assembly of the attitude and track control gas valve group 10;

[0061] Step S4: issuing motion instructions to the drive components of the attitude and track control gas valve group 10 through the data processing and control software deployed on the host computer 7;

[0062] Step S5: the driving component of the attitude and track control gas valve group 10 drives the valve core component inside the attitude and track control gas valve group 10 to move;

[0063] Step S6: the four laser displacement sensors 5 respectively capture the displacement of the valve core assembly and transmit the data to the data acquisition system 6 through four signal transmission lines 8;

[0064] Step S7: the data acquisition system 6 transmits the collected data to the host computer 7 via the data transmission line 9;

[0065] Step S8: The data analysis software of the host computer processes the collected data and displays the movement stroke of the four valve core components of the attitude and track control gas valve group 10.

[0066] Although the present invention has been disclosed as above in the form of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art may make possible changes and modifications to the technical solution of the present invention using the above disclosed contents without departing from the spirit and scope of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the contents of the technical solution of the present invention shall fall within the protection scope of the technical solution of the present invention.

Claims

1. A non-contact attitude and track control gas valve group stroke automatic measurement device, characterized in that: It includes an automatic stroke measurement module for an attitude and track control gas valve group, a data acquisition system (6), and a host computer (7). The attitude and track control gas valve group stroke automatic measurement module comprises a measurement platform (1), a reference correction block (2), a sensor support rod (3), a sensor mounting bracket (4), a laser displacement sensor (5), and an attitude and track control gas valve group (10), and is used to measure the stroke of the attitude and track control gas valve group (10); A circular groove is provided in the middle of the measuring platform (1), and a cross slide is provided in the circular groove for positioning the attitude and track control gas valve group (10); the reference correction block (2) is installed in the cross slide of the measuring platform (1), and four reference correction blocks (2) are cross-distributed and used to correct the measurement reference of the valve core component end face of the attitude and track control gas valve group (10); a sensor support rod (3) is fixed on four sides of the measuring platform (1), and a sensor mounting bracket (4) is installed on the sensor support rod (3), and the sensor mounting bracket (4) is used to install the laser displacement sensor (5), and the sensor mounting bracket (4) moves up and down along the sensor support rod (3) until the laser beam of the laser displacement sensor (5) can shine on the end face of the valve core component; The data acquisition system (6) is connected to the attitude and track control gas valve group stroke automatic measurement module for data acquisition; The host computer (7) is connected to the data acquisition system (6) and is used for data analysis and processing.

2. According to claim 1, a non-contact type attitude and track control gas valve group stroke automatic measurement device is characterized in that: The data acquisition system (6) is connected to the attitude and track control gas valve group stroke automatic measurement module via the signal transmission line (8), and the host computer (7) is connected to the data acquisition system (6) via a data transmission line (9).

3. According to claim 1, a non-contact type attitude and track control gas valve group stroke automatic measurement device is characterized in that: The four sides of the measuring platform (1) are respectively provided with square grooves, which are centrally symmetrical with respect to the square grooves on two sides; there are four sensor support rods (3), which are respectively fixed on the square grooves.

4. According to claim 1, a non-contact type attitude and track control gas valve group stroke automatic measurement device is characterized in that: The reference correction block (2) is an "L"-shaped structure.

5. The non-contact type attitude and track control gas valve group stroke automatic measurement device according to claim 1 is characterized in that: The sensor mounting bracket (4) is a hollow "U"-shaped groove.

6. The non-contact type attitude and track control gas valve group stroke automatic measurement device according to claim 3 is characterized in that: The data acquisition system (6) is connected to the four laser displacement sensors (5) using the four signal transmission lines (8) respectively, so as to simultaneously acquire signals from the four laser displacement sensors (5).

7. The non-contact type attitude and track control gas valve group stroke automatic measurement device according to claim 2 is characterized in that: The host computer (7) is installed with data processing and control software for issuing motion instructions to the drive unit of the attitude and track control gas valve group (10).

8. The non-contact type attitude and track control gas valve group stroke automatic measurement device according to claim 2 is characterized in that: The host computer (7) analyzes and processes the data collected by the data collection system (6) to display the movement strokes of the four valve core components of the attitude and track control gas valve group (10).

9. A non-contact automatic measurement method for the stroke of a gas valve group with attitude and track control, characterized in that: The method uses the non-contact type attitude and track control gas valve group stroke automatic measuring device according to any one of claims 1 to 9, and the method comprises the following steps: Step S1: placing the attitude and track control gas valve group (10) to be measured in the circular groove of the measuring platform (1), and roughly positioning the attitude and track control gas valve group (10) according to the positions of the circular groove and the cross slide rail; Step S2: adjusting the height of the sensor support frame (4) on the sensor support rod (3) according to the height of the valve core assembly of the attitude and rail control gas valve group (10), so as to ensure that the laser beam of the laser displacement sensor (5) shines on the end surface of the valve core assembly; Step S3: Move the reference calibration block (2) and rotate the attitude and track control gas valve group (10) until the four cross-distributed reference calibration blocks (2) are fitted with the four planes of the attitude and track control gas valve group (10) distributed in the cross direction, thereby completing the axial reference calibration between the laser beam of the laser displacement sensor (5) and the valve core assembly of the attitude and track control gas valve group (10); Step S4: issuing a motion instruction to the driving component of the attitude and track control gas valve group (10); Step S5: the driving component of the attitude and track control gas valve group (10) drives the valve core component inside the attitude and track control gas valve group (10) to move; Step S6: The laser displacement sensor (5) captures the displacement of the valve core assembly and transmits the data to the data acquisition system (6); Step S7: the data acquisition system (6) transmits the acquired data to the host computer (7); Step S8: The data analysis software of the host computer processes the collected data and displays the movement stroke of the valve core assembly of the attitude and track control gas valve group (10).

10. A non-contact automatic stroke measurement method for attitude and track control gas valve group according to claim 9, characterized in that: In step S2, the height positions of the four sensor support frames (4) on the four sensor support rods (3) are adjusted respectively according to the height of the valve core assembly of the attitude and rail control gas valve group (10), so as to ensure that the laser beams of the four laser displacement sensors (5) are irradiated on the end surface of the valve core assembly; the four sensor support frames (4) are located on four sides of the measuring platform (1), and are centrally symmetrical with respect to the sensor support frames (4) on two sides; In step S4, a motion instruction is issued to the driving component of the attitude and track control gas valve group (10) through the data processing and control software deployed on the host computer (7); In step S6, four laser displacement sensors (5) respectively capture the displacement of the valve core assembly and transmit the data to the data acquisition system (6); In step S8, the host computer displays the movement strokes of the four valve core components of the attitude and track control gas valve group (10).

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