A device and method for measuring the spatial dimensions of a waveguide right-angle butt joint

Abstract

This invention discloses a measuring device and method for measuring the spatial dimensions of waveguide right-angle connections. The measuring device includes a horizontal support, a vertical support, a cross slider, a dial indicator, a top block, a micrometer head, screws, and locating pins. During measurement, the lower flange of the measuring device is brought into contact with, aligned with, and tightened against the flange of the right-angle connected waveguide. The micrometer head is rotated, causing the cross slider to slide vertically and horizontally until the right flange of the right-angle connected waveguide is brought into contact with and aligned with the other flange of the right-angle connected waveguide. The extension and retraction of the micrometer head are recorded, and the initial values ​​of the horizontal and vertical zero points of the measuring device are added to obtain the measured spatial dimensions of the waveguide right-angle connection. This invention can measure the spatial dimensions of waveguide right-angle connections with an accuracy of IT8 or lower. The measurement is fast, the data is stable, and it is not limited by the size of the waveguide connection system. The measuring device and method of this invention can be widely applied to the measurement of spatial dimensions of various types of waveguide right-angle connections.

Description

Technical Field

[0001] This invention belongs to the field of measurement technology, specifically relating to a device and method for measuring the spatial dimensions of waveguides when they are right-angled. Background Technology

[0002] like Figure 6 The diagram illustrates the spatial dimensions for right-angle waveguide connections. Dimensions P and Q represent the distances between the extended center line of the waveguide cavity and the end face of the waveguide flange. The dimensional accuracy is IT10, with some special locations requiring IT8. No standard measuring instruments exist for these measurements. Currently, measuring the spatial dimensions of right-angle waveguide connections primarily relies on indirect measurement using other measuring tools or coordinate measuring machines (CMMs). Indirect measurement methods are inefficient and prone to large errors, mainly used for applications requiring low precision. These methods also demand high skill levels from the measurement personnel. While CMMs offer high accuracy, they require specialized personnel, are inefficient, and costly. This is particularly problematic in large-scale waveguide connection systems where space constraints make CMMs difficult or even unusable. Therefore, for measuring the spatial dimensions of right-angle waveguide connections in systems requiring high precision or large dimensions, a measuring instrument that guarantees accuracy, is easy to operate, fast, and is not limited by the size of the waveguide connection system is urgently needed. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention provides a device and method for measuring the spatial dimensions of waveguides when they are right-angled.

[0004] This invention provides a device for measuring the spatial dimensions of waveguide right-angle docking, comprising a horizontal support 1, a vertical support 2, a cross slider 3, a dial indicator 4, a top block 5, and a differential head 6. The sliding portions on both sides of the cross slider 3 are cuboids. The side of the vertical support 2 contacts and is fixed to the outer surface of the cross slider 3, and the side is parallel to the sliding plane of the cross slider 3. The side of the vertical support 2 is provided with a boss 10, and the lower end of the vertical support 2 is provided with a flange 18 that matches the docking waveguide. The side of the horizontal support 1 contacts the outer surface of the other side of the cross slider 3. The horizontal support 1 is fixed and its side is parallel to the sliding plane of the cross slider 3. The side of the horizontal support 1 is provided with positioning holes 12. The right end of the horizontal support 1 is provided with a flange 17 that matches the docking waveguide. The meter holder 4 is respectively mounted on the left side and the top side of the cross slider 3. The top block 5 is L-shaped and is mounted on the left side and the top side of the cross slider 3. It is arranged on both sides of the sliding plane with the meter holder 4. The dial indicator 6 is mounted on the meter holder 4. The contact of the micrometer head 6 is in contact with the top block 5. The extension and retraction direction of the micrometer head 6 is perpendicular to the left side and the top side of the cross slider 3.

[0005] Furthermore, the measuring device for spatial dimensions during right-angle waveguide docking also includes screws 7 and 8. The upper end of the vertical support 2 is provided with two threaded holes 14. Screw 7 makes the lower side of the cross slider 3 in close contact with the boss 10 through the threaded holes 14. The left end and lower side of the horizontal support 1 are provided with two threaded holes 15. Screw 8 contacts the left side and lower side of the cross slider 3 through the threaded holes 15 respectively.

[0006] Furthermore, the device for measuring the spatial dimensions when the waveguide is right-angled also includes a positioning pin 13, and the outer surface of the cross slider 3 is also provided with a positioning hole 11, with one half of the positioning pin 13 inserted into the positioning hole 11 and the other half inserted into the positioning hole 12.

[0007] The present invention also proposes a measurement method for measuring the spatial dimensions using any of the above-mentioned waveguide right-angle docking devices, comprising the following steps:

[0008] Step 1: Make contact with, align and tighten the flange 18 of the measuring device with the flange of the right-angle butt waveguide;

[0009] Step 2: Rotate the differential head 6 to drive the cross slider 3 to slide vertically and horizontally until the flange 17 contacts and aligns with the other flange of the right-angled waveguide;

[0010] Step 3: Record the extension and retraction of the two differential heads respectively, and add the initial values ​​of the horizontal and vertical zero positions of the measuring device to obtain the measured values ​​of the spatial dimensions when the waveguides are right-angled.

[0011] Step 4: Loosen the fasteners of flange 18 and right-angle butt waveguide flange, and remove the measuring device.

[0012] Furthermore, before proceeding to step one, a calibration and zeroing process for the measuring device is included, as detailed below:

[0013] First, place the measuring device on a horizontal platform, ensuring that the flange 18 is in full contact with the platform. Adjust the flange 17 to be perpendicular to the platform by adjusting the screw 8. Adjust the micrometer head 6 to a certain scale and set it as the horizontal and vertical zero positions of the measuring device. Note that the dimensions of the zero position of the measuring device in each direction are smaller than the spatial dimensions when the waveguide under test is right-angled. Use a coordinate measuring machine to measure and record the initial values ​​of the horizontal and vertical zero positions of the measuring device.

[0014] The beneficial effects of this invention are as follows: Through the implementation of this invention, the spatial dimensions of waveguide right-angle connections with an accuracy of IT8 or below can be measured. The measurement data is stable, the operation is simple, the measurement is fast, and it is not limited by the size of the waveguide connection system. In addition, the measuring device and measuring method of this invention can be widely used in the measurement of spatial dimensions of various types of waveguide right-angle connections. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the external shape of the measuring device of the present invention;

[0016] Figure 2 This is a schematic diagram of the external shape of the measuring device of the present invention;

[0017] Figure 3 This is a schematic diagram of the vertical support structure in the measuring device of the present invention;

[0018] Figure 4 This is a right view of the vertical support in the measuring device of the present invention;

[0019] Figure 5 This is a schematic diagram of the structure of the horizontal support in the measuring device of the present invention;

[0020] Figure 6 This is a rear view of the horizontal support in the measuring device of the present invention;

[0021] Figure 7 This is a schematic diagram of the cross slider in the measuring device of the present invention;

[0022] Figure 8 This is a schematic diagram of the spatial dimensions to be measured when the waveguides are right-angled in this invention;

[0023] 1-Horizontal bracket, 2-Vertical bracket, 3-Cross slider, 4-Table holder, 5-Top block, 6-Micro head, 7-Screw, 8-Screw, 10-Boss, 11-Locking hole, 12-Locking hole, 13-Locking pin, 14-Threaded hole, 15-Threaded hole, 17-Flange, 18-Flange, 20-Locking hole, 21-Locking hole. Detailed Implementation

[0024] The technical solution of the present invention is further described below, but the scope of protection is not limited to what is described.

[0025] like Figures 1-5As shown, this invention proposes a device for measuring the spatial dimensions of waveguide right-angle docking, including a horizontal support 1, a vertical support 2, a cross slider 3, a dial indicator 4, a top block 5, and a differential head 6. The sliding portions on both sides of the cross slider 3 are cuboids. The side of the vertical support 2 contacts and is fixed to the outer surface of the cross slider 3, and the side is parallel to the sliding plane of the cross slider 3. The side of the vertical support 2 is provided with a boss 10, and the lower end of the vertical support 2 is provided with a flange 18 that matches the docking waveguide. The side of the horizontal support 1 contacts the outer surface of the other side of the cross slider 3. The horizontal support 1 is fixed and its side is parallel to the sliding plane of the cross slider 3. The side of the horizontal support 1 is provided with positioning holes 12. The right end of the horizontal support 1 is provided with a flange 17 that matches the docking waveguide. The meter holder 4 is respectively mounted on the left side and the top side of the cross slider 3. The top block 5 is L-shaped and is mounted on the left side and the top side of the cross slider 3. It is arranged on both sides of the sliding plane with the meter holder 4. The dial indicator 6 is mounted on the meter holder 4. The contact of the micrometer head 6 is in contact with the top block 5. The extension and retraction direction of the micrometer head 6 is perpendicular to the left side and the top side of the cross slider 3.

[0026] The device for measuring the spatial dimensions when the waveguide is right-angled also includes screws 7 and 8. The upper end of the vertical support 2 is provided with two threaded holes 14. Screw 7 makes the lower side of the cross slider 3 in close contact with the boss 10 through the threaded holes 14. The left end and the lower side of the horizontal support 1 are provided with two threaded holes 15. Screw 8 contacts the left side and the lower side of the cross slider 3 through the threaded holes 15 respectively.

[0027] The device for measuring the spatial dimensions when the waveguide is right-angled also includes a positioning pin 13. The outer surface of the cross slider 3 is also provided with a positioning hole 11. Half of the positioning pin 13 is inserted into the positioning hole 11 and the other half is inserted into the positioning hole 12.

[0028] A method for measuring the spatial dimensions when waveguides are right-angled, comprising the following steps:

[0029] Step 1: Make contact with, align and tighten the flange 18 of the measuring device with the flange of the right-angle butt waveguide;

[0030] Step 2: Rotate the differential head 6 to drive the cross slider 3 to slide vertically and horizontally until the flange 17 contacts and aligns with the other flange of the right-angled waveguide;

[0031] Step 3: Record the extension and retraction of the two differential heads respectively, and add the initial values ​​of the horizontal and vertical zero positions of the measuring device to obtain the measured values ​​of the spatial dimensions when the waveguides are right-angled.

[0032] Step 4: Loosen the fasteners of flange 18 and right-angle butt waveguide flange, and remove the measuring device.

[0033] Before proceeding to step one, the calibration and zeroing process of the measuring device can be performed as follows:

[0034] First, place the measuring device on a horizontal platform, ensuring that the flange 18 is in full contact with the platform. Adjust the flange 17 to be perpendicular to the platform by adjusting the screw 8. Adjust the micrometer head 6 to a certain scale and set it as the horizontal and vertical zero positions of the measuring device. Note that the dimensions of the zero position of the measuring device in each direction are smaller than the spatial dimensions when the waveguide under test is right-angled. Use a coordinate measuring machine to measure and record the initial values ​​of the horizontal and vertical zero positions of the measuring device.

[0035] Preferably, the locating pin 13 has an interference fit with locating holes 11 and 12 (H7 / n6), and screws 7 and 8 have fine threads. Rotation of screws 8 in opposite directions (e.g., one clockwise and the other counterclockwise) allows the horizontal bracket 1 to rotate around the locating pin 13. When rotated to the desired position, simultaneously tightening screws 8 clockwise secures the horizontal bracket 1. The parallelism between the extension / retraction direction of the micrometer head 6 and the sliding direction of the cross slider 3 is IT6 grade.

[0036] Preferably, the external features of flanges 17 and 18 are determined by the external shape of the flange of the waveguide under test, and the flange of the waveguide under test needs to be provided with a positioning part. In this embodiment, the flange of the waveguide under test is provided with two positioning holes, which are positioned by positioning pins and positioning holes 20 and 21. The pins and holes are clearance fits H10 / c9, and the clearance is 0.07~0.148mm. The length L of the horizontal support 1 and the length H of the vertical support 2 are determined according to the spatial dimensions P and Q to ensure that the dimensions of the zero position of the measuring device in all directions are smaller than the spatial dimensions P and Q.

[0037] Preferably, the horizontal and vertical zero positions of the measuring device are measured with reference to the positioning parts on flange 17 and flange 18. The distance from the center of symmetry of positioning hole 20 to flange 17 is the horizontal zero position, and the distance from the center of symmetry of positioning hole 21 to flange 18 is the vertical zero position.

[0038] Through the implementation of this invention, the spatial dimensions of waveguide right-angle connections with an accuracy of IT8 or lower can be measured. The measurement data is stable, the operation is simple, the measurement is fast, and it is not limited by the size of the waveguide connection system. In addition, the measuring device and measuring method of this invention can be widely used in the measurement of spatial dimensions of various types of waveguide right-angle connections.

Claims

1. A device for measuring spatial dimensions when waveguides are right-angled, characterized in that: The system includes a horizontal support (1), a vertical support (2), a cross slider (3), a table frame (4), a top block (5), and a differential head (6). The sliding parts on both sides of the cross slider (3) are cuboids. The side of the vertical support (2) contacts and is fixed to the outer surface of the cross slider (3), and the side is parallel to the sliding plane of the cross slider (3). The side of the vertical support (2) is provided with a boss (10). The lower end of the vertical support (2) is provided with a flange (18) that matches the docking waveguide. The side of the horizontal support (1) contacts and is fixed to the outer surface of the other side of the cross slider (3), and the side is parallel to the sliding plane of the cross slider (3). The sliding plane of block (3) is parallel, the side of the horizontal support (1) is provided with positioning hole (12), the right end of the horizontal support (1) is provided with flange (17) that matches the docking waveguide, the table frame (4) is respectively mounted on the left side and the upper side of the cross slider (3), the top block (5) is L-shaped and is mounted on the left side and the upper side of the cross slider (3), and is arranged on both sides of the sliding plane with the table frame (4), the micro head (6) is mounted on the table frame (4), the contact of the micro head (6) is in contact with the top block (5), and the extension direction of the micro head (6) is perpendicular to the left side and the upper side of the cross slider (3).

2. The device for measuring spatial dimensions when waveguides are right-angled according to claim 1, characterized in that: It also includes screws (7) and screws (8). The upper end of the vertical bracket (2) is provided with two threaded holes (14). The screws (7) make the lower side of the cross slider (3) and the boss (10) keep in close contact through the threaded holes (14). The left end and the lower side of the horizontal bracket (1) are provided with two threaded holes (15). The screws (8) contact the left side and the lower side of the cross slider (3) through the threaded holes (15).

3. The device for measuring spatial dimensions when waveguides are right-angled according to claim 1, characterized in that: It also includes a positioning pin (13), and the outer surface of the cross slider (3) is provided with a positioning hole (11). Half of the positioning pin (13) is inserted into the positioning hole (11), and the other half is inserted into the positioning hole (12).

4. A method for measuring the spatial dimensions using a measuring device for right-angled waveguides according to any one of claims 1 to 3, characterized in that... Includes the following steps: Step 1: Make contact with, align and tighten the flange (18) of the measuring device with the flange of the right-angle butt waveguide; Step 2: Rotate the differential head (6) to drive the cross slider (3) to slide vertically and horizontally until the flange (17) contacts and aligns with the other flange of the right-angled waveguide; Step 3: Record the extension and retraction of the two differential heads respectively, and add the initial values ​​of the horizontal and vertical zero positions of the measuring device to obtain the measured values ​​of the spatial dimensions when the waveguides are right-angled. Step 4: Loosen the fasteners of the flange (18) and the right-angle butt-connected waveguide flange, and remove the measuring device.

5. The measurement method according to claim 4, characterized in that: Before proceeding to step one, the process of calibrating and zeroing the measuring device is also included, including: placing the measuring device on a horizontal platform so that the flange (18) is in complete contact with the platform; adjusting the end face of the flange (17) to be perpendicular to the platform by adjusting the screw (8); adjusting the micrometer head (6) to a certain scale and setting it as the horizontal zero position and vertical zero position of the measuring device respectively; making the dimensions of each direction of the zero position of the measuring device smaller than the spatial dimensions when the waveguide under test is right-angled; and using a coordinate measuring machine to measure and record the initial values ​​of the horizontal zero position and vertical zero position of the measuring device.

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