Antenna frame for adjusting transmitting angle of test antenna

Abstract

The utility model relates to the technical field of electromagnetic test equipment, and discloses an antenna frame for adjusting a signal transmitting angle of a test antenna, the test antenna, a rotating unit and a moving unit. The test antenna sends an electromagnetic signal to the workpiece to be tested; the rotating unit comprises a fixing frame, a rotating power source and a transmission assembly, the fixing frame is made of non-metal materials, the rotating power source is installed at one end of the fixing frame, the testing antenna is installed at the other end of the fixing frame, and the end, provided with the rotating power source, of the fixing frame is located outside a transmitting area of the testing antenna. The transmission assembly transmits power provided by the rotation power source to the test antenna. The power output end of the moving unit drives the fixing frame to move. The metal parts of the antenna frame are all located outside the signal transmitting area of the test antenna, so that the problem that the angle of the test antenna cannot be accurately adjusted in order to avoid electromagnetic interference of a metal product on a tested workpiece in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electromagnetic test equipment technical field especially relates to a kind of antenna frame of adjustment test antenna signalling angle. BACKGROUND

[0002] According to test standard GB / T 33014.9-2020, all test surfaces of DUT should be segmented into multiple test units and located in the two orthogonal directions of antenna, and the center of each test unit is exposed in the center position of antenna and the position of vibrator respectively, so that the antenna needs to be moved horizontally and rotated along its antenna axis during testing.

[0003] Since metal products and current appear in the test area of test antenna, electromagnetic interference will be generated to the workpiece to be tested, so the existing antenna frame uses ordinary connecting rod frame to fix the test antenna, and the angle cannot be accurately adjusted by artificial. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies in the prior art, the utility model provides an antenna frame for adjusting the signalling angle of test antenna, which solves the problem of inaccurate adjustment of test antenna angle in the prior art to avoid electromagnetic interference of metal products on the workpiece to be tested.

[0005] To solve the above technical problems, the utility model provides an antenna frame for adjusting the signalling angle of test antenna, which comprises:

[0006] A moving unit;

[0007] A rotating unit, the rotating unit comprises a fixed frame, a rotating power source and a transmission assembly, the fixed frame is made of nylon, the fixed frame is connected with the power output end of the moving unit, the moving unit can drive the fixed frame to move, and the transmission assembly is installed in the fixed frame;

[0008] A test antenna, the test antenna is rotatably installed at one end of the fixed frame close to the workpiece to be tested, the rotation axis of the test antenna is in the same straight line with the axis of the test antenna, and the test antenna emits electromagnetic signals to detect the workpiece to be tested;

[0009] The rotating power source is installed at one end of the fixed frame away from the workpiece to be tested, and the one end of the fixed frame away from the workpiece to be tested is located outside the signalling area of the test antenna, the rotating power source is connected with the test antenna through the transmission assembly, and the rotating power source can drive the test antenna to rotate relative to the fixed frame.

[0010] As an optional solution, the antenna frame further comprises a control unit;

[0011] The control unit is arranged outside the electromagnetic darkroom, and the control unit is in communication connection with the moving unit and the rotating power source through optical fiber or Ethernet cable.

[0012] As an option, the antenna frame further comprises a signal processing unit arranged inside the electromagnetic darkroom and outside the signal transmitting area of the test antenna, and the control unit is in communication connection with the moving unit and the rotating power source through the signal processing unit.

[0013] As an option, the transmission assembly comprises a power output gear set, a transmission belt and a power input gear set.

[0014] The power output gear set is in transmission connection with the transmission belt and the power output end of the rotating power source.

[0015] The power gear set is in transmission connection with the transmission belt and the test antenna.

[0016] The transmission belt is made of plastic, and the transmission direction of the transmission belt is consistent with the rotating direction of the test antenna.

[0017] As an option, the rotating power source is an electric motor, and the motor shaft axis of the electric motor is parallel to the axis of the test antenna.

[0018] As an option, the moving unit comprises a fixed platform and a mechanical arm.

[0019] The fixed platform is arranged inside the electromagnetic darkroom.

[0020] The fixed end of the mechanical arm is fixedly arranged on the fixed platform, and the power output end of the mechanical arm is fixedly connected with the fixed frame.

[0021] As an option, the power output end of the mechanical arm is displaced along the X-axis, the Y-axis and the Z-axis respectively.

[0022] Compared with the prior art, the antenna frame for adjusting the signal transmitting angle of the test antenna has the advantages that the rotating power source with a metal structure is installed in a position far away from the signal transmitting area of the test antenna through the fixed frame made of nylon material, the rotating power source drives the test antenna to spin along its axis through the transmission assembly arranged on the fixed frame, the power output end of the moving unit is fixedly connected with the fixed frame, and the moving unit drives the test antenna to move, so that the signal transmitting angle of the test antenna can be accurately adjusted by the tester, thereby solving the problem that the test antenna angle cannot be accurately adjusted in the prior art to avoid the electromagnetic interference of metal products on the tested workpiece. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is the overall schematic diagram of the antenna frame controlled remotely.

[0024] Figure 2 is the antenna frame of the utility model in Figure 1 A partial enlarged view of the place;

[0025] Figure 3 is the side view of the antenna frame of the utility model remote control;

[0026] Figure 4 is the antenna frame of the utility model in Figure 3 B partial sectional view of the place;

[0027] Figure 5 is the schematic diagram of the control unit of the antenna frame of the utility model remote control.

[0028] In the figure, 1, test antenna; 2, rotating unit; 201, fixed frame; 202, rotating power source; 203, transmission assembly; 2031, power output gear set; 2031a, first connecting gear; 2032, power input gear set; 2032a, second connecting gear; 2032b, transmission gear; 2032c, intermediate gear; 2032d, transmission shaft; 2033, conveying belt; 3, moving unit; 301, fixed platform; 302, mechanical hand; 4, control unit; 5, signal processing unit; 6, workpiece to be tested. DETAILED DESCRIPTION

[0029] The specific embodiments of the utility model are described in further detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

[0030] As Figures 1 to 5 shown, the utility model provides a kind of antenna frame of rotating test antenna 1 signal angle, the antenna frame includes: moving unit 3, rotating unit 2 and test antenna 1.

[0031] The rotating unit 2 includes fixed frame 201, rotating power source 202 and transmission assembly 203, the fixed frame 201 is nylon, the fixed frame 201 will not generate electromagnetic interference to workpiece 6 to be tested due to material restriction;The power output end of the fixed frame 201 is connected with the moving unit 3, the moving unit 3 can drive the fixed frame 201 to move, the transmission assembly 203 is installed in the fixed frame 201.

[0032] Test antenna 1, the test antenna 1 is rotatably installed in the end of the fixed frame 201 close to workpiece 6 to be tested, the rotation axis of the test antenna 1 is same straight line with the axis of the test antenna 1, the test antenna 1 emits electromagnetic signal to detect workpiece 6 to be tested, the signal end of the test antenna 1 is towards workpiece 6 to be tested.

[0033] The rotating power source 202 is installed on the fixed frame 201 away from the workpiece 6, and the end of the fixed frame 201 away from the workpiece 6 is located outside the signal transmission area of the test antenna 1. Through field tests, when the rotating power source 202 is far enough from the test antenna 1, the current in the rotating power source 202 and the metal parts will not cause electromagnetic interference to the workpiece 6. The two ends of the transmission assembly 203 are respectively connected with the power output end of the rotating power source 202 and the test antenna 1, and the rotating power source 202 drives the test antenna 1 to rotate relative to the fixed frame 201 through the transmission assembly 203.

[0034] Therefore, the test antenna 1 is installed on the fixed frame 201 made of nylon. Due to the material properties, the part of the fixed frame 201 located in the signal transmission area of the test antenna 1 will not cause electromagnetic interference to the workpiece 6. The position of the fixed frame 201 where the rotating power source 202 is installed is located outside the signal transmission area of the test antenna 1. By controlling the distance between the metal parts in the rotating power source 202 and the test antenna 1, electromagnetic interference to the workpiece 6 can be avoided. The power output end of the moving unit 3 is fixedly connected with the fixed frame 201 and drives the fixed frame 201 to move, so that the antenna frame can rotate the signal transmission angle of the test antenna 1, thereby solving the problem that in the prior art, the angle of the test antenna 1 cannot be accurately adjusted in order to avoid electromagnetic interference of metal products to the workpiece.

[0035] Further, as shown in Figure 5 The antenna frame further includes a control unit 4 and a signal processing unit 5.

[0036] The control unit 4 is arranged outside the electromagnetic darkroom, the signal processing unit 5 is arranged inside the electromagnetic darkroom and located outside the signal transmission area of the test antenna 1, and the control unit 4 is in communication connection with the moving unit 3 and the rotating power source 202 through the signal processing unit 5.

[0037] The control unit 4 comprises a control panel and a first signal transmitter, the signal processing unit 5 comprises a signal processor and a second signal transmitter, the control panel is located in the control room where the test personnel are located for the test personnel to input instructions, the control panel is electrically connected with the first signal transmitter, the control panel converts the control instructions into electrical signals and transmits them to the first signal transmitter, the first signal transmitter is in communication connection with the signal processor through optical fiber or Ethernet wire, the first signal processor transmits the signals transmitted by the control panel to the signal processor, the signal processor processes the corresponding signals into operation commands and transmits them to the second signal transmitter, the second signal transmitter transmits the corresponding signals to the power output end or the rotating power source 202 of the moving unit 3, and the second signal transmitter controls the power output end and the rotating power source 202 of the moving unit 3 to work, so that the antenna frame realizes remote control of the test antenna 1, thereby avoiding the test personnel from entering the electromagnetic darkroom for debugging every time and reducing the exposure risk of the test personnel.

[0038] Further, as shown in Figures 1 to 4 The transmission assembly 203 comprises a power output gear set 2031, a transmission belt 2033 and a power input gear set 2032; the power output gear set 2031 is in transmission connection with the transmission belt 2033 and the power output end of the rotating power source 202; the power input gear set 2032 is in transmission connection with the transmission belt 2033 and the test antenna 1; the transmission belt 2033 is made of plastic material, and the transmission direction of the transmission belt 2033 is consistent with the rotating direction of the test antenna 1.

[0039] The power output gear set 2031 comprises a first connecting gear 2031a, the first connecting gear 2031a is matched with the power output end of the rotating power source 202, and the first connecting gear 2031a is matched with the transmission belt 2033 through friction force, at this time, the rotating power source 202 drives the transmission belt 2033 to transmit power when it works.

[0040] The power input gear set 2032 includes a second connecting gear 2032a, an intermediate gear 2032c, a transmission shaft 2032d and a transmission gear 2032b, the parts in the power input gear set 2032 are made of non-metallic materials such as plastic, the second connecting gear 2032a is fixedly connected with the test antenna 1, the rotation axis of the second connecting gear 2032a is in the same straight line with the rotation axis of the test antenna 1, the transmission gear 2032b is matched with the conveying belt 2033 through friction, the conveying belt 2033 drives the transmission gear 2032b to rotate when working, the transmission gear 2032b is fixedly connected with the intermediate gear 2032c through the transmission shaft 2032d and the intermediate gear 2032c is located below the transmission gear 2032b, the rotation axis of the transmission gear 2032b, the rotation axis of the intermediate gear 2032c and the axis of the transmission shaft 2032d coincide, the transmission gear 2032b drives the intermediate gear 2032c to rotate when rotating, the intermediate gear 2032c is engaged with the second connecting gear 2032a, so that the second connecting gear 2032a can rotate when the transmission gear 2032b is driven to rotate through the conveying belt 2033, thereby making the test antenna 1 rotate and changing the angle of the test antenna 1.

[0041] Here, the number and arrangement of the internal gears in the power output gear set 2031 are not further limited, the power output gear can be provided with a plurality of gears matched with the first connecting gear 2031a to enable the first connecting gear 2031a to drive the conveying belt 2033.

[0042] Further, as shown in the figure, Figures 1 to 4 The rotating power source 202 is a motor, the motor shaft axis of the motor is parallel to the axis of the test antenna 1, the first connecting gear 2031a is sleeved on the motor shaft, the rotation axis of the motor shaft is parallel to the rotation axis of the test antenna 1, at this time, the driving direction of the conveying belt 2033 driven by the first connecting gear 2031a is the rotation direction of the test antenna 1.

[0043] Further, as shown in the figure, Figures 1 to 4 The moving unit 3 includes a fixed platform 301 and a mechanical hand 302.

[0044] The fixed platform 301 is used for fixedly installing in the electromagnetic darkroom; the fixed platform 301 is a fixed cabinet, the bottom end surface of the fixed cabinet is fixedly connected with the ground of the electromagnetic darkroom through a foot cup.

[0045] The fixed end of the mechanical arm 302 is fixedly installed on the fixed platform 301, that is, the fixed seat of the mechanical arm 302 is fixedly installed on the top surface of the fixed cabinet, and the power output end of the mechanical arm 302 is fixedly connected with the fixed frame 201, that is, the clamping part of the mechanical arm 302 is fixedly connected with the frame body of the fixed frame 201; the position of the clamping part of the mechanical arm 302 fixing the fixed frame 201 is located at one end of the fixed frame 201 on which the rotating power source 202 is installed, the frame body of the fixed frame 201 is hollowed out to reduce weight, and the working end of the mechanical arm 302 drives the fixed frame 201 to move.

[0046] Through experimental tests, it is obtained that the bearing weight of the mechanical arm 302 is 10 kg, and since the materials used in the fixed frame 201, the power input gear set 2032 and the like are small-density materials such as plastics and nylon, the mass of the structure is relatively light, so that the overall weight of the structure is controlled at about 5 kg, and therefore, for the fixed frame 201 in the present application, the mechanical arm 302 is both a mobile power provider and a gravity bearer, so that the fixed frame 201 does not need to be provided with an additional fixing structure to prevent the wall surface of the electromagnetic darkroom from being damaged, thereby ensuring the stability of the fixed frame 201 and solving the movement problem of the fixed part and the test antenna 1.

[0047] Further, the power output end of the mechanical arm 302 is displaced along the X-axis, the Y-axis and the Z-axis respectively, so that the antenna frame can be adjusted to test different sizes and specifications of the workpiece 6 to be tested, thereby ensuring the test effect of the antenna frame on different workpieces 6 to be tested.

[0048] The working process of the present application is as follows: the antenna frame is started, an operator outputs an operation instruction through the control unit 4 arranged outside the electromagnetic darkroom, the control unit 4 transmits signals to the signal processing unit 5 through an optical fiber, the signal processing unit 5 controls the mechanical arm 302 to drive the fixed frame 201 to move correspondingly after processing the signals, the motor on the fixed frame 201 is started according to the instruction and drives the conveyor belt 2033 to rotate through the first connecting gear 2031a, the conveyor belt 2033 drives the second transmission gear 2032b in the gear set to rotate and further drives the test antenna 1 to rotate through the second connecting gear 2032a, and the test antenna 1 emits a detection signal to detect the workpiece 6 to be tested.

[0049] In conclusion, the antenna stand for adjusting the signaling angle of the test antenna 1 is provided, the transmission assembly 203 is used to drive the test antenna 1 to rotate at a position far away from the test antenna 1 by the motor and the mechanical hand 302, and then the electromagnetic interference generated by the motor and the mechanical hand 302 to the workpiece 6 to be tested is avoided, so that the problem that the test antenna 1 angle cannot be accurately adjusted in order to avoid the electromagnetic interference of the metal product to the workpiece to be tested is solved.

[0050] The above merely describes the preferred embodiments of the present application, and it should be noted that those skilled in the art can make several improvements and replacements without departing from the technical principles of the present application, and these improvements and replacements should also be considered as the protection scope of the present application.

Claims

1. An antenna stand for adjusting the transmission angle of a test antenna, characterized by The antenna frame comprises: a moving unit; a rotating unit, which comprises a fixed frame, a rotating power source and a transmission assembly, the fixed frame is made of nylon, the fixed frame is connected with the power output end of the moving unit, the moving unit drives the fixed frame to move, the transmission assembly is installed in the fixed frame; a test antenna, which is installed on the end of the fixed frame close to the workpiece to be tested, the rotating axis of the test antenna is in line with the axis of the test antenna, the test antenna emits electromagnetic signals to detect the workpiece to be tested; the rotating power source is installed on the end of the fixed frame away from the workpiece to be tested, and the end of the fixed frame away from the workpiece to be tested is located outside the signal emitting area of the test antenna, the rotating power source is in transmission connection with the test antenna through the transmission assembly, and the rotating power source drives the test antenna to rotate relative to the fixed frame.

2. The antenna stand for adjusting the transmission angle of a test antenna according to claim 1, wherein The antenna frame further comprises a control unit; The control unit is arranged outside the electromagnetic darkroom, and the control unit is in communication connection with the moving unit and the rotating power source through optical fiber or Ethernet cable.

3. The antenna stand for adjusting the transmission angle of a test antenna according to claim 2, wherein The antenna frame further comprises a signal processing unit, which is arranged inside the electromagnetic darkroom and located outside the signal emitting area of the test antenna, and the control unit is in communication connection with the moving unit and the rotating power source through the signal processing unit.

4. The antenna stand for adjusting the transmission angle of a test antenna according to claim 1, wherein The transmission assembly comprises a power output gear set, a transmission belt and a power input gear set; the power output gear set is in transmission connection with the transmission belt and the power output end of the rotating power source; the power input gear set is in transmission connection with the transmission belt and the test antenna; The transmission belt is made of plastic, and the transmission direction of the transmission belt is consistent with the rotating direction of the test antenna.

5. The antenna stand for adjusting the transmission angle of a test antenna according to claim 1, wherein The rotating power source is a motor, and the motor shaft axis is parallel to the axis of the test antenna.

6. The antenna stand for adjusting the transmission angle of a test antenna according to claim 1, wherein, The moving unit comprises a fixed platform and a mechanical hand; The fixed platform is used for fixed installation in the electromagnetic darkroom; The fixed end of the mechanical hand is fixedly installed on the fixed platform, and the power output end of the mechanical hand is fixedly connected with the fixed frame.

7. The antenna stand for adjusting the transmission angle of a test antenna according to claim 6, wherein The power output end of the mechanical hand is displaced along the X axis, the Y axis and the Z axis respectively.

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