Device and method for measuring spatial size during waveguide right-angle butt joint

Abstract

The invention discloses a device and method for measuring the spatial size during waveguide right-angle butt joint, and the device comprises a horizontal support, a vertical support, a cross slide block, a gauge stand, a top block, a micrometer head, a screw, a screw, and a positioning pin. During measurement, a lower flange plate of the measurement device is contacted, aligned, and fastened with a flange plate of a right-angle butt joint waveguide; and rotating the micrometer head to drive the cross slide block to vertically and horizontally slide until the right flange plate is contacted and aligned with the other flange plate of the right-angle butt joint waveguide, respectively recording the expansion and contraction amount of the micrometer head, and adding the initial values of the horizontal zero position and the vertical zero position of the measurement device to obtain the measurement value of the spatial size during waveguide right-angle butt joint. The method can be used for measuring the spatial size during right-angle butt joint of waveguides with the precision below IT8 level, is quick in measurement and stable in data, and is not limited by the size of a waveguide connection system. The measuring device and the measuring method can be widely applied to the measurement of the spatial size during right-angle butt joint of various types of waveguides.

Description

Technical Field

[0001] The invention belongs to the field of measurement technology, and in particular relates to a device and a method for measuring the spatial dimensions of waveguides when they are butted at right angles. Background Art

[0002] like Figure 6 As shown in the figure, it is a schematic diagram of the spatial dimensions when the waveguide is right-angled. The spatial dimensions P and Q are the distances between the extension line of the center of the waveguide cavity and the end face of the waveguide flange. The dimensional accuracy is IT10. Some special positions require IT8, and there is no standard measuring tool for measurement. At present, the spatial dimensions when the waveguide is right-angled are mainly measured indirectly with the help of other measuring tools, or measured with a three-coordinate measuring machine. The indirect measurement method is inefficient and has large measurement errors. It is mainly used in the case of low precision. This measurement method requires high skills of the measurement personnel. While the three-coordinate measuring machine can ensure high measurement accuracy, it requires professional personnel to measure, has low measurement efficiency, and high measurement cost. Especially in some large-sized waveguide connection systems, due to space limitations, the three-coordinate measuring machine is difficult to use or even completely unusable. Therefore, when it comes to the measurement of the spatial dimensions when the waveguide is right-angled in a waveguide connection system with high precision requirements or large size specifications, there is an urgent need for a measuring instrument that can ensure measurement accuracy, is simple to operate, and is fast to measure, and is not limited by the size of the waveguide connection system. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a device and method for measuring the spatial dimensions of waveguides when they are butt-jointed at right angles.

[0004] The present invention provides a device for measuring the spatial dimensions of waveguides when they are butted at right angles, comprising a horizontal bracket 1, a vertical bracket 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 rectangular parallelepipeds. The side surfaces of the vertical bracket 2 are in contact with and fixed to the outer surface of the cross slider 3, and the side surfaces are parallel to the sliding plane of the cross slider 3. The side surfaces of the vertical bracket 2 are provided with bosses 10. The lower end of the vertical bracket 2 is provided with a flange 18 matching the butted waveguide. The side surfaces of the horizontal bracket 1 are in contact with the outer surface of the other side of the cross slider 3. And fixed, and the side surface is parallel to the sliding plane of the cross slider 3, a positioning hole 12 is provided on the side of the horizontal bracket 1, and a flange 17 matching the docking waveguide is provided at the right end of the horizontal bracket 1. The meter frame 4 is respectively mounted on the left side and upper side of the cross slider 3, the top block 5 is L-shaped, mounted on the left side and upper side of the cross slider 3, and arranged on both sides of the sliding plane with the meter frame 4, the dial indicator 6 is mounted on the meter frame 4, the contact of the differential head 6 is in contact with the top block 5, and the extension and retraction direction of the differential head 6 is respectively perpendicular to the left side and upper side of the cross slider 3.

[0005] Furthermore, the device for measuring the spatial dimensions of the waveguides when they are docked at right angles also includes screws 7 and screws 8. Two threaded holes 14 are provided at the upper end of the vertical bracket 2, and the screws 7 keep the lower side of the cross slider 3 in close contact with the boss 10 through the threaded holes 14. Two threaded holes 15 are provided at the left end and the lower side of the horizontal bracket 1, and the screws 8 contact the left side and the lower side of the cross slider 3 respectively through the threaded holes 15.

[0006] Furthermore, the device for measuring the spatial dimensions of waveguides at right angles to each other further comprises a positioning pin 13 , and a positioning hole 11 is further provided on the outer surface of the cross slide 3 , wherein half of the positioning pin 13 is inserted into the positioning hole 11 , and the other half is inserted into the positioning hole 12 .

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

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

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

[0010] Step 3: Record the expansion and contraction amounts of the two differential heads respectively, and add the initial values ​​of the horizontal zero position and the vertical zero position of the measuring device to obtain the measured values ​​of the spatial dimensions when the waveguides are butt-jointed at right angles;

[0011] Step 4: Loosen the fasteners of the flange 18 and the right-angled waveguide flange, and take out the measuring device.

[0012] Furthermore, before performing step 1, a calibration and zeroing process of the measuring device is also included, which is as follows:

[0013] First, place the measuring device on a horizontal table surface to ensure that the flange 18 is in full contact with the table surface. Make the end face of the flange 17 perpendicular to the table surface by adjusting the screw 8. Adjust the micrometer head 6 to a certain scale and set them as the horizontal zero position and vertical zero position of the measuring device respectively. Pay attention to ensure that the dimensions of the zero position of the measuring device in all directions are smaller than the spatial dimensions when the waveguide to be measured is right-angled. Use a three-coordinate measuring machine to measure the initial values ​​of the horizontal zero position and vertical zero position of the measuring device and record them.

[0014] The beneficial effects of the present invention are as follows: through the implementation of the present invention, the spatial dimensions of waveguides at right angles can be measured with an accuracy below IT8 level, 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 the measuring method of the present invention can be widely used in the measurement of the spatial dimensions of various types of waveguides at right angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the appearance of the measurement device result of the present invention;

[0016] Figure 2 It is a schematic diagram of the appearance of the measurement device result of the present invention;

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

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

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

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

[0021] Figure 7 It is a schematic structural diagram of a cross slide in a measuring device of the present invention;

[0022] Figure 8 It is a schematic diagram of the spatial dimensions to be measured when the waveguides of the present invention are butted at right angles;

[0023] 1-horizontal bracket, 2-vertical bracket, 3-cross slider, 4-meter frame, 5-top block, 6-differential head, 7-screw, 8-screw, 10-boss, 11-positioning hole, 12-positioning hole, 13-positioning pin, 14-threaded hole, 15-threaded hole, 17-flange, 18-flange, 20-positioning hole, 21-positioning hole. DETAILED DESCRIPTION

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

[0025] like Figure 1-Figure 5As shown, the present invention proposes a device for measuring the spatial dimensions of waveguides when they are butted at right angles, comprising a horizontal bracket 1, a vertical bracket 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 rectangular parallelepipeds. The side surfaces of the vertical bracket 2 are in contact with and fixed to the outer surface of the cross slider 3, and the side surfaces are parallel to the sliding plane of the cross slider 3. The side surfaces of the vertical bracket 2 are provided with bosses 10. The lower end of the vertical bracket 2 is provided with a flange 18 matching the butted waveguide. The side surfaces of the horizontal bracket 1 are in contact with the outer surface of the other side of the cross slider 3. The horizontal bracket 1 is in contact with and fixed, and the side surface is parallel to the sliding plane of the cross slider 3. A positioning hole 12 is provided on the side of the horizontal bracket 1, and a flange 17 matching the docking waveguide is provided at the right end of the horizontal bracket 1. The meter 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 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 meter frame 4. The dial indicator 6 is mounted on the meter frame 4, and the contact of the differential head 6 is in contact with the top block 5, and the telescopic direction of the differential head 6 is respectively perpendicular to the left side and the upper side of the cross slider 3.

[0026] The device for measuring the spatial dimensions of the waveguides when they are docked at right angles also includes screws 7 and screws 8. Two threaded holes 14 are provided at the upper end of the vertical bracket 2. The screws 7 keep the lower side of the cross slider 3 in close contact with the boss 10 through the threaded holes 14. Two threaded holes 15 are provided at the left end and the lower side of the horizontal bracket 1. The screws 8 contact the left side and the lower side of the cross slider 3 respectively through the threaded holes 15.

[0027] The device for measuring the spatial dimensions of waveguides at right angles to each other further comprises a positioning pin 13 . A positioning hole 11 is further provided on the outer surface of the cross slide 3 . One 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 of waveguides when they are butted at right angles comprises the following steps:

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

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

[0031] Step 3: Record the expansion and contraction amounts of the two differential heads respectively, and add the initial values ​​of the horizontal zero position and the vertical zero position of the measuring device to obtain the measured values ​​of the spatial dimensions when the waveguides are butt-jointed at right angles;

[0032] Step 4: Loosen the fasteners of the flange 18 and the right-angled waveguide flange, and take out the measuring device.

[0033] Before proceeding to step 1, the calibration and zeroing process of the measuring device can be performed as follows:

[0034] First, place the measuring device on a horizontal table surface to ensure that the flange 18 is in full contact with the table surface. Make the end face of the flange 17 perpendicular to the table surface by adjusting the screw 8. Adjust the micrometer head 6 to a certain scale and set them as the horizontal zero position and vertical zero position of the measuring device respectively. Pay attention to ensure that the dimensions of the zero position of the measuring device in all directions are smaller than the spatial dimensions when the waveguide to be measured is right-angled. Use a three-coordinate measuring machine to measure the initial values ​​of the horizontal zero position and vertical zero position of the measuring device and record them.

[0035] Preferably, the positioning pin 13 and the positioning hole 11 and the positioning hole 12 are interference fit H7 / n6, the screw 7 and the screw 8 are fine pitch threads, and the screw 8 rotates in different directions (for example, one rotates clockwise and the other rotates counterclockwise) to allow the horizontal bracket 1 to rotate around the positioning pin 13. When it rotates to the desired position, tightening the screw 8 clockwise at the same time can fix the horizontal bracket 1. The parallelism between the telescopic direction of the micrometer head 6 and the sliding direction of the cross slide 3 is IT6 level.

[0036] Preferably, the shape characteristics of the flange 17 and the flange 18 are determined by the shape of the flange of the waveguide to be measured, and a positioning portion is required on the flange of the waveguide to be measured. In this embodiment, two positioning holes are provided on the flange of the waveguide to be measured, and positioning is performed by positioning pins and positioning holes 20 and 21. The pins and holes have a clearance fit of H10 / c9, and the clearance is 0.07 to 0.148 mm. The length L of the horizontal bracket 1 and the length H of the vertical bracket 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 each direction are smaller than the spatial dimensions P and Q.

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

[0038] Through the implementation of the present invention, the spatial dimensions of waveguides at right angles can be measured with an accuracy below IT8 level, 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 the measuring method of the present invention can be widely used in the measurement of the spatial dimensions of various types of waveguides at right angles.

Claims

1. A device for measuring the spatial dimensions of waveguides when they are butted at right angles, characterized in that: The invention comprises a horizontal support (1), a vertical support (2), a cross slider (3), a table frame (4), a top block (5), and a micrometer head (6), wherein the sliding parts on both sides of the cross slider (3) are rectangular parallelepipeds, the side surface of the vertical support (2) is in contact with and fixed to the outer surface of the cross slider (3), and the side surface is parallel to the sliding plane of the cross slider (3), the side surface 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) matching the docking waveguide, the side surface of the horizontal support (1) is in contact with and fixed to the outer surface of the other side of the cross slider (3), and the side surface is parallel to the sliding plane of the cross slider (3), The horizontal support (1) is parallel to the sliding plane of the block (3), a positioning hole (12) is provided on the side of the horizontal support (1), a flange (17) matching the docking waveguide is provided at the right end of the horizontal support (1), the meter 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, 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 meter frame (4), a dial indicator (6) is mounted on the meter frame (4), a contact of the differential head (6) is in contact with the top block (5), and the telescopic direction of the differential head (6) is respectively perpendicular to the left side and the upper side of the cross slider (3).

2. The device for measuring the spatial dimensions of waveguides when they are butted at right angles according to claim 1, characterized in that: It also includes a screw (7) and a screw (8). The upper end of the vertical bracket (2) is provided with two threaded holes (14). The screw (7) allows the lower side of the cross slider (3) to maintain close contact with the boss (10) through the threaded holes (14). The left end and lower side of the horizontal bracket (1) are provided with two threaded holes (15). The screw (8) contacts the left side and lower side of the cross slider (3) respectively through the threaded holes (15).

3. The device for measuring the spatial dimensions of waveguides when they are butted at right angles according to claim 1, characterized in that: It also includes a positioning pin (13). The outer surface of the cross slide block (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).

4. A method for measuring the spatial dimensions of a waveguide when it is right-angled by using any one of claims 1 to 3, characterized in that The following steps are involved: Step 1: contact, align and tighten the flange (18) of the measuring device with the flange of the right-angle butt waveguide; Step 2: Rotate the micrometer head (6) to drive the cross slide (3) to slide vertically and horizontally until the flange (17) contacts and aligns with the other flange of the right-angle docking waveguide; Step 3: Record the expansion and contraction amounts of the two differential heads respectively, and add the initial values ​​of the horizontal zero position and the vertical zero position of the measuring device to obtain the measured values ​​of the spatial dimensions when the waveguides are butt-jointed at right angles; Step 4: Loosen the fasteners of the flange (18) and the right-angled waveguide flange, and take out the measuring device.

5. The method for measuring the spatial dimensions of waveguides when they are butted at right angles according to claim 4, characterized in that: Before performing step 1, the method further includes a calibration and zeroing process for the measuring device, including: placing the measuring device on a horizontal table surface, making the flange (18) completely contact the table surface, making the end face of the flange (17) perpendicular to the table surface by adjusting the screw (8), adjusting the micrometer head (6) to a certain scale and setting them as the horizontal zero position and the vertical zero position of the measuring device respectively, making the dimensions of the zero position of the measuring device in each direction smaller than the spatial dimensions when the waveguide to be measured is right-angled, and using a three-coordinate measuring machine to measure and record the initial values ​​of the horizontal zero position and the vertical zero position of the measuring device.

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