Device for rapidly and automatically measuring coaxiality of multi-cell ellipsoid resonant cavity

Abstract

The invention discloses a device for rapidly and automatically measuring the coaxiality of a multi-cell ellipsoid resonant cavity, and belongs to the technical field of coaxiality measurement. The device comprises a main body bracket system, a to-be-measured multi-cell ellipsoid resonant cavity, a coaxiality measuring assembly, power supply equipment and control system software, the main body support system provides a stable installation reference for the to-be-measured multi-cell ellipsoid resonant cavity, and allows the to-be-measured multi-cell ellipsoid resonant cavity to freely move in a measurement area through the moving slide rail. The coaxiality measuring assembly comprises a fixing support and a measuring circular ring, and a plurality of high-precision measuring sensors are evenly distributed on the measuring circular ring. The power supply equipment provides energy support for the whole device; the control system software realizes the automatic control of the measurement process, including the movement of the multi-cell ellipsoid resonant cavity to be measured, the data acquisition of the measurement sensor and the calculation processing of the coaxiality. According to the invention, rapid and accurate measurement of the multi-cell ellipsoid resonant cavity is realized, the whole process is automatic, manual intervention is not needed, and the measurement efficiency and precision are significantly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of coaxiality measurement, and in particular relates to a device for quickly and automatically measuring the coaxiality of a multi-cell ellipsoidal resonant cavity. Background Art

[0002] Coaxiality is an important parameter to measure whether the various parts of a device are kept near a central axis. It involves the design and manufacturing accuracy of shaft parts. In high-precision systems, coaxiality needs to be measured and corrected.

[0003] The polyhedral ellipsoid resonator is a device widely used in accelerators. Through this resonator, particle beams can be accelerated. The polyhedral ellipsoid resonator is a thin-walled structure formed by stamping parts and electron beam welding. It is connected by multiple resonator units. Therefore, there are inevitable deformations during the processing, such as unit tilt, eccentricity, and unit length deviation, which affect the resonant frequency and axial electric field flatness, thereby reducing the electric field gradient of its operation. Therefore, it is very important to ensure the high accuracy of the coaxiality of the polyhedral ellipsoid resonator to be tested.

[0004] For the coaxiality measurement of multi-cell ellipsoid resonant cavities, the commonly used method is to test through a row of multiple sensors, relying on rotating sensors or rolling cavities for measurement. This method is not only complicated to operate, but also difficult to ensure measurement accuracy due to the errors caused by mechanical movement. In addition, the existing technology often requires a lot of manual intervention, resulting in long measurement time and low level of automation, which is difficult to meet the needs of efficient and accurate measurement. Therefore, how to achieve fast and high-precision coaxiality measurement while reducing manual intervention is a technical problem that urgently needs to be solved in this field. Summary of the invention

[0005] The purpose of the present invention is to provide a device for quickly and automatically measuring the coaxiality of a polyhedral ellipsoid resonant cavity in order to solve the technical problems of low measurement accuracy, slow speed and complicated operation in the prior art. The device can realize fully automatic and rapid measurement of the polyhedral ellipsoid resonant cavity through a multi-sensor array, a fixed test component and a motor drive of a control system.

[0006] The technical problem proposed by the present invention is solved in this way:

[0007] A device for quickly and automatically measuring the coaxiality of a multi-cell ellipsoid resonant cavity, comprising a main support system 1, a multi-cell ellipsoid resonant cavity to be measured 2, a coaxiality measurement component 3, a power supply device 4 and control system software;

[0008] The main support system 1 includes a frame structure 101 and a movable slide rail 102, and the movable slide rail 102 is fixedly installed on the upper surface of the frame structure 101;

[0009] The multi-cell ellipsoid resonant cavity 2 to be tested can slide along the movable slide rail 102;

[0010] The coaxiality measuring assembly 3 includes a fixed bracket, a measuring ring 303 and a measuring sensor 304; the fixed bracket is fixedly mounted on the frame structure 101, and the measuring ring 303 is fixedly mounted on the fixed bracket; a plurality of measuring sensors 304 are evenly distributed on the inner side of the measuring ring 303;

[0011] The power supply device 4 is fixed to the side of the main support system 1, and is used to drive the multi-cell ellipsoid resonant cavity 2 to be measured to slide along the movable slide rail 102, and provide power for the measurement sensor 304 and the control system software;

[0012] The control system software is used to control the movement of the multi-cell ellipsoid resonant cavity 2 to be measured, receive the collected data of the measurement sensor 304 and complete the coaxiality calculation.

[0013] Furthermore, the multi-cell ellipsoid resonant cavity 2 to be tested includes an input port 203, a plurality of unit cavities 201 and an output port 204 cascaded in sequence, and also includes a support bracket and a sliding base 207; both ends of the unit cavity 201 are provided with reinforcing ribs 202, and adjacent unit cavities 201 are cascaded through the reinforcing ribs 202; the unit cavities 201 and the supporting brackets correspond one to one, and the supporting brackets include a soft supporting body 205 and a supporting seat 206; the bottom of the supporting seat 206 is fixedly connected to the sliding base 207, and the top is fixedly connected to the soft supporting body 205, which is used to support the unit cavity 201; the sliding base 207 contacts the movable slide rail 102 of the main support system 1, so that the multi-cell ellipsoid resonant cavity 2 to be tested can slide along the movable slide rail 102.

[0014] Furthermore, in the coaxiality measuring assembly 3, the fixed bracket includes a support rod 301 and a support plane 302; the two support rods 301 are fixedly installed on both sides of the frame structure 101 of the main support system 1, and the two support planes 302 are fixedly installed on the support rods 301. The support rods 301 and the support planes 302 work together to fix the measuring ring 303 on the frame structure 101 of the main support system 1.

[0015] Furthermore, the center of the measuring ring 303 and the axis of the multi-cell ellipsoid resonant cavity 2 to be measured are located on the same horizontal line.

[0016] Furthermore, the inner diameter of the measuring ring 303 is greater than the outer diameter of the unit cavity 201 .

[0017] Furthermore, the measuring sensors 304 point to the center of the measuring circle 303 , and the angle between adjacent measuring sensors 304 is 45° or 30°.

[0018] Furthermore, the measuring sensor 304 is a laser ranging sensor.

[0019] The beneficial effects of the present invention are:

[0020] The device for rapid automatic measurement of the coaxiality of a polyhedral ellipsoid resonant cavity of the present invention can measure the tangent plane of the entire polyhedral ellipsoid resonant cavity at one time without mechanical rotation by evenly arranging a number of measurement sensors on a measurement ring, thereby reducing the error in traditional mechanical rotation measurement and achieving rapid and accurate measurement. In the entire device of the present invention, only the polyhedral ellipsoid resonant cavity has a mechanical motion device passing through the measurement ring, and the entire mechanical system is stable and reliable, with few variables, and can repeat measurements many times. By correcting and compensating the data of each measurement sensor, a technical effect of high measurement accuracy and high speed can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the device for rapid and automatic measurement of the coaxiality of the multi-cell ellipsoid resonant cavity of the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of the main support system and the power supply equipment in the device of the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the multi-cell ellipsoid resonant cavity to be tested in the device of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the coaxiality measuring component in the device described in the present invention.

[0025] The reference numerals involved in the accompanying drawings are as follows: 1-main support system, 2-multi-cell ellipsoid resonant cavity to be measured, 3-coaxiality measurement component, 4-power supply equipment, 101-frame structure, 102-movable slide rail, 201-unit cavity, 202-reinforcement rib, 203-input port, 204-output port, 205-flexible support body, 206-support seat, 207-sliding base, 301-support rod, 302-support plane, 303-measuring ring, 304-measuring sensor. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0027] This embodiment provides a device for quickly and automatically measuring the coaxiality of a multi-cell ellipsoidal resonant cavity. The overall structure diagram is shown in FIG. Figure 1 As shown, it includes a main support system 1, a multi-cell ellipsoid resonant cavity to be measured 2, a coaxiality measurement component 3, a power supply device 4 and a control system software.

[0028] like Figure 2As shown, the main support system 1 includes a frame structure 101 and a movable slide rail 102, and the movable slide rail 102 is fixedly installed on the upper surface of the frame structure 101. The frame structure 101 is composed of aluminum alloy profiles or other high-strength metal materials to ensure the stability and measurement accuracy of the device.

[0029] The structural diagram of the multi-cell ellipsoid resonator 2 to be tested is as follows: Figure 3 As shown, it includes an input port 203, a plurality of unit cavities 201 and an output port 204 cascaded in sequence, and also includes a support bracket and a sliding base 207; both ends of the unit cavity 201 are provided with reinforcing ribs 202, and adjacent unit cavities 201 are cascaded through the reinforcing ribs 202; the unit cavities 201 and the support bracket correspond one-to-one to ensure the stability of the multi-cell ellipsoid resonant cavity to be measured, and the support bracket includes a soft support body 205 and a support seat 206; the bottom of the support seat 206 is fixedly connected to the sliding base 207, and the top is fixedly connected to the soft support body 205, which is used to support the unit cavity 201; the sliding base 207 is in contact with the movable slide rail 102 of the main support system 1, so that the multi-cell ellipsoid resonant cavity 2 to be measured can slide along the movable slide rail 102.

[0030] The structural diagram of the coaxiality measurement component 3 is shown in Figure 4 As shown, it includes a support rod 301, a support plane 302, a measuring ring 303 and a plurality of measuring sensors 304; two support rods 301 are fixedly installed on both sides of the frame structure 101 of the main support system 1, and two support planes 302 are fixedly installed on the support rods 301. The support rods 301 and the support planes 302 work together to fix the measuring ring 303 on the frame structure 101 of the main support system 1; the center of the measuring ring 303 is kept on the same horizontal line as the axis of the multi-cell ellipsoid resonant cavity 2 to be measured, Ensure the accuracy of the test; the inner diameter of the measuring ring 303 is larger than the outer diameter of the unit cavity 201, so as to ensure that the multi-cell ellipsoid resonant cavity 2 to be tested can pass through the measuring ring 303 smoothly, so that the measuring sensor 304 can test each unit cavity 201 of the multi-cell ellipsoid resonant cavity 2 to be tested; a plurality of measuring sensors 304 are evenly distributed on the measuring ring 303, and the measuring sensors 304 point to the center of the measuring ring 303. Through system correction and compensation, the tangent plane of the multi-cell ellipsoid resonant cavity can be measured with high precision at one time.

[0031] To ensure the accuracy and precision of the measurement, the more the number of measurement sensors 304, the better. Figure 4 The angle of the measuring sensor shown is 45°, and can also be 30° or smaller. The smaller the angle, the higher the test accuracy. To ensure that the multi-cell ellipsoid resonant cavity can pass through the measuring ring, a gap is provided directly below the measuring ring 303. At the same time, the measuring sensor 304 cannot be placed in the gap.

[0032] The measuring sensor 304 is generally a contact sensor or a non-contact sensor. The data interface of the sensor is connected to a data acquisition card on the control system through a cable, and scanning measurement is performed through program control.

[0033] The power supply device 4 is fixed on the side of the main support system 1, and is used to drive the sliding base 207 of the multi-cell ellipsoid resonant cavity 2 to be measured to slide along the movable slide rail 102, and provide power for the measurement sensor 304 and the control system software in the coaxiality measurement component 3; the control system software is used to control the movement of the multi-cell ellipsoid resonant cavity 2 to be measured, receive the collected data of the measurement sensor 304, and complete the coaxiality solution.

[0034] In specific operation, the multi-cell ellipsoid resonator 2 to be tested is fixed on the movable slide rail 102 of the main support system 1. The multi-cell ellipsoid resonator 2 to be tested maintains its position through the support bracket and is driven to move along the slide rail by the power supply device 4. After the test starts, the multi-cell ellipsoid resonator 2 to be tested will pass through the measuring ring 303 in the coaxiality measurement component 3, and the measuring sensor 304 will obtain the coaxiality information of various parts of the cavity from different angles. The control system software is responsible for managing the entire measurement process, automatically controlling the movement of the multi-cell ellipsoid resonator 2 to be tested and the data acquisition of the measuring sensor 304. The measurement data is processed and corrected in real time through the software algorithm, and finally the coaxiality data of the multi-cell ellipsoid resonator 2 to be tested is output. The entire process is fully automated, reducing manual intervention and significantly improving measurement efficiency.

[0035] The entire testing process is divided into four steps:

[0036] The first step is to position the multi-cell ellipsoid resonant cavity 2 to be tested. The multi-cell ellipsoid resonant cavity 2 to be tested is placed on the main support system 1, ensuring that the central axis of the multi-cell ellipsoid resonant cavity 2 to be tested is on the same horizontal line as the center of the measuring ring 303. The support bracket can be adjusted according to the size of the multi-cell ellipsoid resonant cavity 2 to be tested to adapt to multi-cell ellipsoid resonant cavities of different sizes.

[0037] In the second step, the multi-cell ellipsoid resonator 2 to be tested moves. After the control system software is started, the power supply device 4 drives the multi-cell ellipsoid resonator 2 to be tested to pass through the measuring ring 303 along the moving slide rail 102. During the movement of the multi-cell ellipsoid resonator 2 to be tested, the measuring sensor 304 performs real-time scanning on each unit of the multi-cell ellipsoid resonator 2 to be tested.

[0038] The third step is data collection and processing. The measuring sensor 304 is a contact sensor or a non-contact sensor, usually a high-precision distance sensor or a laser distance sensor. Each measuring sensor 304 maintains a specific measuring distance with the multi-cell ellipsoid resonator 2 to be measured, and the data of the measuring sensor 304 is transmitted to the control system software through a cable, and the control system software completes the coaxiality solution.

[0039] Step 4: Analyze the measurement results. Based on the calculated coaxiality result of the multi-cell ellipsoid resonator 2 to be measured, if the coaxiality of the multi-cell ellipsoid resonator 2 to be measured exceeds the preset range, the control system software prompts the operator through an alarm or other means to make necessary adjustments or re-measure.

[0040] The control system software described in this embodiment controls the entire measurement process through a program, and its main functions include:

[0041] First, automatically control the movement of the multi-cell ellipsoid resonator 2 to be tested. The control system software drives the sliding base 207 of the multi-cell ellipsoid resonator 2 to be tested to slide along the moving slide rail 102 through the power supply device 4, so that the multi-cell ellipsoid resonator 2 to be tested can smoothly pass through the measuring ring 303;

[0042] Second, real-time data collection of the measurement sensor 304. The data of the measurement sensor 304 is transmitted to the control system software via a cable, and the data can be compensated and corrected according to preset parameters to ensure the accuracy of the measurement results and complete the coaxiality calculation.

[0043] Third, generate reports and feedback. Feedback the coaxiality calculation results to the operator, and store the measurement data for subsequent analysis or re-measurement.

[0044] The multi-cell ellipsoid resonator 2 to be tested can move along the movable slide rail 102 on the main support system 1 under the control of the control system software. Under the control of the control system software, when the multi-cell ellipsoid resonator 2 to be tested moves from one side of the measuring ring 303 to the other side, the coaxiality of the entire multi-cell ellipsoid resonator 2 to be tested can be quickly measured.

[0045] In order to improve the measurement accuracy of coaxiality, the device described in this embodiment adopts the following technical means:

[0046] First, evenly distributed measuring sensors 304. The measuring sensors 304 of the measuring ring 303 are evenly distributed, and the distance between the measuring sensors 304 and the center of the circle is kept consistent, which can ensure the consistency of the coaxiality data measured from different angles.

[0047] Second, high-precision calibration of the measuring sensor 304. Before measurement, all measuring sensors 304 need to be precisely calibrated to ensure that their measuring accuracy reaches the optimal state. In addition, the control system software can automatically calibrate the data of the measuring sensor 304 to avoid deviations in the overall measurement results caused by errors in individual measuring sensors 304.

[0048] Third, error compensation algorithm. The control system software can automatically detect and compensate for measurement deviations caused by environmental factors or mechanical errors to ensure the accuracy of coaxiality data.

[0049] The embodiment of the present invention provides a preferred measurement method, but those skilled in the art can modify or replace it according to specific needs. For example, the type of the measurement sensor 304 can be a contact or non-contact sensor according to different measurement environments, and the size of the measurement ring 303 can also be adjusted according to the size of the multi-cell ellipsoid resonant cavity 2 to be measured. At the same time, the algorithm in the control system software can also be optimized according to different measurement requirements to improve the accuracy and efficiency of the measurement.

[0050] Through the above-mentioned specific implementation methods, the present invention provides an efficient, accurate and highly automated solution for rapid measurement of the coaxiality of a multi-cell ellipsoid resonant cavity, which can significantly reduce human intervention and improve the manufacturing accuracy and performance of the resonant cavity.

[0051] The above specific implementation methods are used to illustrate the present invention, which is only used to help understand the present invention and is not intended to limit the present invention. For technicians in the technical field to which the present invention belongs, some simple deductions, deformations or substitutions can be made based on the ideas of the present invention. All simple, equivalent changes and modifications made according to the claims and description of the present invention application fall within the scope of protection of the claims of the present invention patent. The contents not described in detail in the present invention are all conventional technical contents.

Claims

1. A device for rapid automatic measurement of the coaxiality of a multi-cell ellipsoidal resonant cavity, characterized in that: It comprises a main support system (1), a multi-cell ellipsoid resonant cavity to be measured (2), a coaxiality measurement component (3), a power supply device (4) and control system software; The main support system (1) comprises a frame structure (101) and a movable slide rail (102), wherein the movable slide rail (102) is fixedly mounted on the upper surface of the frame structure (101); The multi-cell ellipsoid resonant cavity (2) to be tested is capable of sliding along the movable slide rail (102); The coaxiality measuring assembly (3) comprises a fixed bracket, a measuring ring (303) and a measuring sensor (304); the fixed bracket is fixedly mounted on the frame structure (101), and the measuring ring (303) is fixedly mounted on the fixed bracket; a plurality of measuring sensors (304) are evenly distributed on the inner side of the measuring ring (303); The power supply device (4) is fixed to the side of the main support system (1) and is used to drive the multi-cell ellipsoid resonant cavity (2) to be measured to slide along the movable slide rail (102) to provide power for the measurement sensor (304) and the control system software; The control system software is used to control the movement of the multi-cell ellipsoid resonant cavity (2) to be measured, receive the collected data of the measurement sensor (304), and complete the calculation of the coaxiality.

2. The device for rapid automatic measurement of coaxiality of a multi-cell ellipsoidal resonant cavity according to claim 1 is characterized in that: The multi-cell ellipsoid resonant cavity (2) to be tested comprises an input port (203), a plurality of unit cavities (201) and an output port (204) which are cascaded in sequence, and also comprises a support bracket and a sliding base (207); both ends of the unit cavities (201) are provided with reinforcing ribs (202), and adjacent unit cavities (201) are cascaded via the reinforcing ribs (202); the unit cavities (201) and the support bracket correspond one to one, and the support bracket comprises a soft support body (205) and a support base (206); the bottom of the support base (206) is fixedly connected to the sliding base (207), and the top is fixedly connected to the soft support body (205), and is used to support the unit cavities (201); the sliding base (207) contacts the movable slide rail (102) of the main support system (1), so that the multi-cell ellipsoid resonant cavity (2) to be tested can slide along the movable slide rail (102).

3. The device for rapid automatic measurement of coaxiality of a multi-cell ellipsoidal resonant cavity according to claim 1 is characterized in that: In the coaxiality measuring assembly (3), the fixed support comprises a support rod (301) and a support plane (302); the two support rods (301) are fixedly mounted on both sides of a frame structure (101) of the main support system (1), and the two support planes (302) are fixedly mounted on the support rods (301); the support rods (301) and the support planes (302) work together to fix the measuring ring (303) on the frame structure (101) of the main support system (1).

4. The device for rapid automatic measurement of coaxiality of a multi-cell ellipsoidal resonant cavity according to claim 3 is characterized in that: The center of the measuring ring (303) and the axis of the multi-cell ellipsoid resonant cavity (2) to be measured are located on the same horizontal line.

5. The device for rapid automatic measurement of coaxiality of a multi-cell ellipsoidal resonant cavity according to claim 2 is characterized in that: The inner diameter of the measuring ring (303) is greater than the outer diameter of the unit cavity (201).

6. The device for rapid automatic measurement of coaxiality of a multi-cell ellipsoidal resonant cavity according to claim 1 is characterized in that: The measuring sensors (304) point toward the center of the measuring circle (303), and the angle between adjacent measuring sensors (304) is 45° or 30°.

7. The device for rapid automatic measurement of coaxiality of a multi-cell ellipsoidal resonant cavity according to claim 1 is characterized in that: The measuring sensor (304) is a laser distance measuring sensor.

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