A radar test chamber based on marble frame and its debugging and assembly method

Abstract

The present invention discloses a radar test room based on a marble frame and a debugging and assembling method thereof. The test room comprises: a marble frame, the marble frame has three mutually perpendicular reference planes, and the origin of the coordinate system and the coordinate system are established by setting the distance of the three reference plane offsets, and the origin of the coordinate system is a theoretical test point; a plurality of MDS mechanisms, the plurality of MDS mechanisms are adjustably fixed at selected positions on the marble frame, and the intersection points of the Doppler waves emitted by the plurality of MDS mechanisms pass through the origin of the coordinate system; and a robot, the robot is detachably connected to the product testing tooling, and the robot is used to drive the product testing tooling to rotate during the test, so that the test point of the product to be tested is always located at the theoretical test point. The radar test room equipment based on the marble frame provided by the present invention is convenient for equipment debugging through the high-precision marble frame and the adjustable MDS mechanism, and there is no need for repeated debugging in the later stage, which saves manpower and time and reduces the maintenance cost of the equipment.

Description

Technical Field

[0001] The invention relates to the field of detection technology, and in particular to a radar test chamber based on a marble frame and a debugging and assembling method thereof. Background Art

[0002] Doppler radar (with an effective range of several meters to tens of meters) has a large application market due to its simple design, low cost and wide application, such as vehicle-mounted radar used in automobiles.

[0003] Due to the high-precision requirements of radar testing, in existing Doppler radar tests, the test equipment structure is often very complex. In order to achieve a higher detection effect, the equipment needs to be debugged repeatedly, which not only wastes time and energy, affects production efficiency, but also increases the maintenance cost of the equipment. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the invention discloses a radar test chamber based on a marble frame and a debugging and assembling method thereof.

[0005] To achieve the above object, the present invention is implemented through the following technical solutions:

[0006] The invention discloses a radar test chamber based on a marble frame, comprising:

[0007] A marble frame, wherein the marble frame has three mutually perpendicular reference planes, and the origin of a coordinate system and a coordinate system are established by setting a distance by offsetting the three reference planes, wherein the origin of the coordinate system is a theoretical test point;

[0008] A plurality of MDS mechanisms for transmitting Doppler waves to the product to be detected, wherein the plurality of MDS mechanisms are adjustably fixed at selected positions on the marble frame, and the intersection points of the Doppler waves transmitted by the plurality of MDS mechanisms pass through the coordinate origin; and

[0009] The robot is detachably connected to a product testing tooling, the product testing tooling is used to clamp the product to be tested, and the robot is used to drive the product testing tooling to rotate during the test so that the test point of the product to be tested is always located at the theoretical test point.

[0010] Preferably, the marble frame is formed by splicing and fastening four marble slabs and has set shape and position tolerances.

[0011] Preferably, the MDS mechanism includes a Doppler wave simulator, a straight waveguide, a horn antenna, a mounting block and an adjustment component, the Doppler wave simulator and the straight waveguide are respectively fixed on the mounting block, both ends of the straight waveguide are respectively connected to the Doppler wave simulator, and the mounting block is adjustably connected to the reference plane of the marble frame through the adjustment component.

[0012] Further preferably, the adjustment assembly includes a first adjustment block and a second adjustment block, the first adjustment block is vertically fixedly connected to a side surface of the second adjustment block, a first threaded hole is provided on the first adjustment block, a second threaded hole is provided on the reference surface of the marble frame, a first waist-shaped hole for matching the screw connecting the first threaded hole is provided on the base of the mounting block, and a second waist-shaped hole for matching the screw connecting the second threaded hole is provided on the side surface of the second adjustment block.

[0013] More preferably, a first micrometer is installed on one side surface of the marble frame, and the first micrometer abuts against the side surface of the first adjusting block. The first micrometer is used to record the data of the relative position of the MDS mechanism and the reference plane of the corresponding marble frame after the first adjusting block is adjusted into place, and the data is engraved on the nameplate.

[0014] More preferably, a second micrometer is installed above the first adjusting block, the first micrometer abuts against a side surface of the mounting block, and the second micrometer is used to record data of the relative position of the mounting block and the first adjusting block after the mounting block is adjusted into place, and the data is engraved on a nameplate.

[0015] Preferably, the coordinates of the robot are calibrated by a calibration tool, and the calibration tool is used to make the zero point of the robot coincide with the theoretical test point.

[0016] Further preferably, the robot is provided with a connecting head, and the calibration tool is also provided with a connecting head, and the robot and the calibration tool are connected to each other through their respective connecting heads.

[0017] The present invention also discloses a debugging and assembling method of a radar test room based on a marble frame, which is applied to the above-mentioned radar test room based on a marble frame, and comprises the following steps:

[0018] The origin of the coordinate system and the coordinate system are established by setting the offset distance of three mutually perpendicular reference planes of the marble frame, and the origin of the coordinate system is a theoretical test point;

[0019] According to the inspection requirements of the product to be inspected, a plurality of MDS mechanisms are respectively installed on one or more selected reference surfaces, and the positions of the plurality of MDS mechanisms are respectively adjusted until the intersection points of the Doppler waves emitted by the plurality of MDS mechanisms pass through the coordinate origin;

[0020] The base of the robot is mounted on one side of the marble frame close to the origin of the coordinates, a calibration fixture is connected to the connecting head of the robot, and the angle error between each surface of the calibration fixture and the reference surface of the corresponding marble frame is measured by a mechanical arm measuring instrument, and correction is set in the robot coordinates, and the zero point of the robot is set to coincide with the theoretical test point;

[0021] The calibration tool is removed from the robot connection head, and the detection tool is installed on the robot connection head. When the robot drives the product testing tool to rotate during the test, the test point of the product to be tested is always located at the theoretical test point.

[0022] Compared with the prior art, the present invention has at least the following advantages:

[0023] The marble frame-based radar test room provided by the present invention has relatively fewer mechanisms, simplifies the entire test station, and reduces manufacturing costs.

[0024] The radar test room based on the marble frame provided by the present invention ensures the relative position of each mechanism and the measurement accuracy through the structural stability and high-precision processing size of the precisely processed marble when each MDS mechanism is far away from the robot.

[0025] The position of the MDS mechanism of the marble frame-based radar test room provided by the present invention is adjustable, and the intersection point of Doppler waves emitted by multiple MDS mechanisms can be ensured to pass through the coordinate origin, thereby ensuring the measurement accuracy.

[0026] The marble frame-based radar test room equipment provided by the present invention is convenient for equipment debugging through a high-precision marble frame and an adjustable MDS mechanism, and does not require repeated debugging in the later stage, thus saving manpower and time and reducing the maintenance cost of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for describing the embodiments are briefly introduced below.

[0028] Figure 1 A schematic structural diagram of a radar test chamber based on a marble frame disclosed in an embodiment of the present invention;

[0029] Figure 2 A schematic diagram of the structure of a marble frame disclosed in an embodiment of the present invention (excluding the slideway);

[0030] Figure 3 A schematic diagram of the structure of the product testing tooling disclosed in the embodiment of the present invention;

[0031] Figure 4 A schematic diagram of the structure of the calibration tooling disclosed in the embodiment of the present invention;

[0032] Figure 5 It is a schematic diagram of the structure of the MDS mechanism disclosed in the embodiment of the present invention. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below in conjunction with embodiments and drawings so that those skilled in the art can implement the invention with reference to the description.

[0034] join Figures 1 to 5 As shown, an embodiment of the present invention discloses a radar test chamber based on a marble frame, comprising:

[0035] The marble frame 1 has three mutually perpendicular reference planes, namely the first reference plane 11, the second reference plane 12 and the third reference plane 13. The origin of the coordinate system and the coordinate system are established by setting the distance of the three reference plane offsets. The origin of the coordinate system is a theoretical test point.

[0036] A plurality of MDS mechanisms 2 are used to transmit Doppler waves to the product to be detected. The plurality of MDS mechanisms 2 are adjustably fixed at selected positions on the marble frame 1. The intersection points of the Doppler waves 3 transmitted by the plurality of MDS mechanisms 2 pass through the coordinate origin; and,

[0037] The robot 3 is detachably connected to the product testing tool 4. The product testing tool 4 is used to clamp the product to be tested. The robot 3 is used to drive the product testing tool 4 to rotate during the test so that the test point of the product to be tested is always located at the theoretical test point.

[0038] The marble frame 1 is formed by splicing and fastening four marble slabs, and has set shape and position tolerances to ensure the shape and position tolerance accuracy of the reference surface of the marble frame 1.

[0039] The MDS mechanism 2 includes a Doppler wave simulator 21, a straight waveguide 22, a horn antenna 23, a mounting block 24 and an adjustment component. The Doppler wave simulator 21 and the straight waveguide 22 are respectively fixed on the mounting block 24, and both ends of the straight waveguide 22 are respectively connected to the Doppler wave simulator 21. The mounting block 24 is adjustably connected to the reference surface of the marble frame 1 through the adjustment component.

[0040] Among them, the adjustment component includes a first adjustment block 25 and a second adjustment block 26, the first adjustment block 25 and the second adjustment block 26 are vertically fixedly connected, a first threaded hole is set on the first adjustment block 25, and a second threaded hole is set on the reference surface of the marble frame 1. A first waist-shaped hole 241 for matching the screw to connect the first threaded hole is opened on the base of the mounting block 24, and a second waist-shaped hole 261 for matching the screw to connect the second threaded hole is opened on the side of the second adjustment block 26. The position of the mounting block 24 on the first adjustment block 25 can be conveniently adjusted through the first waist-shaped hole 241, and the relative position of the second adjustment block 26 (or the entire MDS mechanism 2) and the reference surface can be conveniently adjusted through the second waist-shaped hole 261, thereby realizing the adjustment of the entire MDS mechanism 2.

[0041] A first micrometer 5 is installed on one side of the marble frame 1. The first micrometer 5 abuts against the side of the first adjustment block 25. The first micrometer 5 is used to record the data of the relative position of the MDS mechanism 2 and the corresponding reference surface of the marble frame 1 after the MDS mechanism 2 (specifically the second adjustment block 26) is adjusted in place, and the data is engraved on the nameplate. Once the second adjustment block 26 moves, the first micrometer 5 can measure the distance until the MDS mechanism 2 is adjusted in place. The first micrometer 5 completes the measurement after the MDS mechanism 2 is adjusted in place. After the data is engraved on the nameplate, it is convenient for the equipment to be quickly debugged in place according to the engraved data once a deviation occurs during the subsequent operation;

[0042] A second micrometer 6 is installed above the first adjusting block 25, and the second micrometer 6 abuts against one side of the mounting block 24. The second micrometer 6 is used to record the data of the relative position of the mounting block 24 and the first adjusting block 25 after the mounting block 24 is adjusted into place, and the data is engraved on the nameplate. Once the mounting block 24 moves, the second micrometer 6 can measure the distance until the mounting block 24 is adjusted into place. The second micrometer 6 completes the measurement after the mounting block 24 is adjusted into place. After the staff reads the data and engraves it on the nameplate, it is convenient for the equipment to be quickly debugged into place according to the engraved data if any deviation occurs during subsequent operation.

[0043] The robot 3 is provided with a connector 31, and the product testing tool 4 is also provided with a connector 41. The robot 3 and the product testing tool 4 are connected to each other through their respective connectors. The connectors can realize a quick connection between the robot 3 and the product testing tool 4.

[0044] The coordinates of the robot 3 are calibrated by the calibration tool 7, and the calibration tool 7 is used to make the zero point of the robot 3 coincide with the theoretical test point. The robot 3 is provided with a connector, and the calibration tool 7 is also provided with a connector 71. The robot 3 and the calibration tool 7 are connected to each other through their respective connectors. The connector can realize the quick connection between the robot 3 and the calibration tool 7.

[0045] The embodiment of the present invention also discloses a debugging and assembling method of the above-mentioned radar test chamber based on the marble frame, comprising the following steps:

[0046] The origin of the coordinate system and the coordinate system are established by setting the offset distance of the three mutually perpendicular reference planes of the marble frame 1, and the origin of the coordinate system is the theoretical test point;

[0047] According to the inspection requirements of the product to be inspected, multiple MDS mechanisms 2 are respectively installed on one or more selected reference surfaces (four MDS mechanisms 2 are installed in this embodiment, three of which are installed at the same place), and the positions of the multiple MDS mechanisms 2 are respectively adjusted until the intersection points of the Doppler waves emitted by the multiple MDS mechanisms 2 pass through the coordinate origin. Specifically, the position of the entire MDS mechanism 2 is adjusted by adjusting the positions of the first adjustment block 25 and the installation block 24;

[0048] The base of the robot 3 is mounted on one side of the marble frame 1 close to the origin of the coordinates, and the calibration fixture 7 is connected to the connector of the robot 3. The angle error between each surface (surface a, b, c) of the calibration fixture 7 and the corresponding reference surface of the marble frame 1 is measured by a mechanical arm measuring instrument, and the setting correction is performed in the coordinates of the robot 3, and the zero point of the robot 3 is set to coincide with the theoretical test point;

[0049] The calibration tool 7 is removed from the connecting head of the robot 3, and the detection tool is installed on the connecting head of the robot 3. When the robot 3 drives the product testing tool 4 to rotate during the test, the test point of the product to be tested is always located at the theoretical test point.

[0050] After the MDS mechanism 2 is adjusted into place, the data of the relative position between the MDS mechanism 2 and the reference plane of the corresponding marble frame 1 is recorded by a micrometer, and the data is engraved on a nameplate.

[0051] Through the above technical solutions, the marble frame-based radar test room provided by the embodiment of the present invention has relatively few structures, simplifies the entire test station, and reduces manufacturing costs.

[0052] The radar test room based on the marble frame provided by the present invention ensures the relative position of each mechanism and the measurement accuracy through the structural stability and high-precision processing size of the precisely processed marble when each MDS mechanism 2 is far away from the robot 3.

[0053] The position of the MDS mechanism 2 of the marble frame-based radar test room provided by the embodiment of the present invention is adjustable, which can ensure that the intersection point of Doppler waves emitted by multiple MDS mechanisms 2 passes through the coordinate origin, thereby ensuring measurement accuracy.

[0054] The marble frame-based radar test room equipment provided in the embodiment of the present invention is convenient for equipment debugging through the high-precision marble frame 1 and the adjustable MDS mechanism 2, and there is no need for repeated debugging in the later stage, which saves manpower and time and reduces the maintenance cost of the equipment.

[0055] Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A radar test chamber based on a marble frame, characterized by: include: A marble frame, wherein the marble frame has three mutually perpendicular reference planes, and a coordinate origin and a coordinate system are established by setting offset distances between the three reference planes, wherein the coordinate origin is a theoretical test point; A plurality of MDS mechanisms for transmitting Doppler waves to the product to be detected, wherein the plurality of MDS mechanisms are adjustably fixed at selected positions on the marble frame, and the intersection points of the Doppler waves transmitted by the plurality of MDS mechanisms pass through the coordinate origin; and A robot, wherein the robot is detachably connected to a product testing tool, the product testing tool is used to clamp the product to be tested, and the robot is used to drive the product testing tool to rotate during the test so that the test point of the product to be tested is always located at the theoretical test point; The MDS mechanism comprises a Doppler wave simulator, a straight waveguide, a horn antenna, a mounting block and an adjustment component, wherein the Doppler wave simulator and the straight waveguide are respectively fixed on the mounting block, two ends of the straight waveguide are respectively connected to the Doppler wave simulator, and the mounting block is adjustably connected to the reference surface of the marble frame through the adjustment component; The adjustment assembly comprises a first adjustment block and a second adjustment block, the first adjustment block is vertically fixedly connected to the second adjustment block, a first threaded hole is arranged on the first adjustment block, a second threaded hole is arranged on the reference surface of the marble frame, a first waist-shaped hole for matching the screw to connect the first threaded hole is arranged on the base of the mounting block, and a second waist-shaped hole for matching the screw to connect the second threaded hole is arranged on the side surface of the second adjustment block; A first micrometer is installed on one side of the marble frame, the first micrometer abuts against the side of the first adjustment block, and the first micrometer is used to record the data of the relative position between the MDS mechanism and the reference surface of the corresponding marble frame after the MDS mechanism is adjusted into place, and the data is engraved on the nameplate; A second micrometer is installed above the first adjustment block, the first micrometer abuts against a side surface of the mounting block, and the second micrometer is used to record the data of the relative position of the mounting block and the first adjustment block after the mounting block is adjusted into place, and the data is engraved on the nameplate; Install the robot base on one side of the marble frame close to the coordinate origin.

2. A radar test chamber based on a marble frame according to claim 1, characterized in that: The marble frame is formed by splicing and fastening four marble slabs and has set shape and position tolerances.

3. A radar test chamber based on a marble frame according to claim 1, characterized in that: The robot is provided with a connection head, and the product testing tool is also provided with a connection head. The robot and the product testing tool are connected to each other through their respective connection heads.

4. A radar test chamber based on a marble frame according to claim 1, characterized in that: The coordinates of the robot are calibrated by a calibration tool, and the calibration tool is used to make the zero point of the robot coincide with the theoretical test point.

5. A radar test chamber based on a marble frame according to claim 4, characterized in that: The robot is provided with a connection head, and the calibration tool is also provided with a connection head. The robot and the calibration tool are connected to each other through their respective connection heads.

6. A debugging and assembling method for a radar test chamber based on a marble frame, characterized in that: The marble frame-based radar test chamber as claimed in any one of claims 1 to 5 comprises the following steps: The coordinate origin and the coordinate system are established by setting the offset distances of three mutually perpendicular reference planes of the marble frame, wherein the coordinate origin is a theoretical test point; Installing multiple MDS mechanisms on one or more selected reference surfaces according to the inspection requirements of the product to be inspected, and adjusting the positions of the multiple MDS mechanisms until the intersection points of the Doppler waves emitted by the multiple MDS mechanisms pass through the coordinate origin; Connecting a calibration fixture to the connecting head of the robot, measuring the angle error between each surface of the calibration fixture and the reference surface of the corresponding marble frame by a mechanical arm measuring instrument, setting corrections in the robot coordinates, and setting the robot zero point to coincide with the theoretical test point; The calibration tool is removed from the robot connection head, and the detection tool is installed on the robot connection head. When the robot drives the product testing tool to rotate during the test, the test point of the product to be tested is always located at the theoretical test point.

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