CN116507105A - A small microwave dark box - Google Patents

Abstract

The invention discloses a small-sized microwave camera bellows, which relates to the technical field of microwave devices and comprises a camera bellows body, wherein the inner wall of the camera bellows body is entirely covered with a wave absorbing device, a piece to be tested tool for fixing equipment to be tested is arranged in the camera bellows body, the equipment to be tested is fixedly connected with the piece to be tested tool in an inserting mode, a test antenna for testing the equipment to be tested is arranged in the camera bellows body, and a camera bellows frame vehicle for driving the whole to move is arranged below the camera bellows body. According to the method, the small camera bellows body and the movable antenna are arranged to be aligned with the equipment to be tested for sampling, so that the design of the test equipment is minimized on the basis of meeting the requirements of customers; the placement position of the equipment to be tested is limited by arranging the equipment to be tested, and the equipment to be tested are in a splicing and fixing mode, so that the equipment to be tested can be conveniently taken and placed, and the testing efficiency is improved; the dark box trolley is arranged below the dark box body to drive the whole to move, so that the equipment is convenient to move.

Description

A small microwave dark box

technical field

The invention relates to the technical field of microwave devices, in particular to a small microwave dark box.

Background technique

Microwave anechoic box (or microwave anechoic chamber) is a special space composed of absorbing materials and metal shields, which provides artificially empty "free space" conditions. Testing wireless communication products and electronic products such as antennas and radars in a microwave anechoic box (or microwave anechoic chamber) can avoid clutter interference, improve the test accuracy and efficiency of the tested equipment, and protect staff from radiation damage. With the development of electronic technology, the microwave dark box (or microwave darkroom) is understood and applied by more and more people. A microwave anechoic box (or microwave anechoic chamber) is to use absorbing materials to create a closed space, so that a pure electromagnetic environment can be created in the anechoic chamber.

The test of microwave products often needs to be carried out in a microwave dark box without microwave reflection and interference. During the mass production process, the test parts need to be tested and verified for consistent electrical performance indicators, and the qualified combined products to be tested can be quickly and efficiently screened out for the follow-up The whole machine assembly provides the parts to be tested with guaranteed quality and quantity, and stores the necessary test data for file, so as to provide later quality review and traceability. The DUT has high requirements on the test environment. The small microwave dark box is used to simulate the electromagnetic environment in which electromagnetic waves propagate in free space. The shielding body of the dark room is used to avoid external electromagnetic wave interference and leakage of the confidential frequency band of the test equipment. The electromagnetic wave transmission state in free space without reflection is simulated by the absorbing effect of the absorbing material in the dark box.

There are following technical problems in existing microwave device:

(1) The device is large in size and occupies a large laboratory space, which is inconvenient for transportation, installation and use;

(2) The installation and coordination structure of the test piece and the test piece tooling is complicated, which is inconvenient for customers to place, clamp and take out the test piece, and the test efficiency is low.

Contents of the invention

The object of the present invention is to provide a small microwave dark box, which is used to solve the problems of large volume, inconvenient movement, inconvenient pick and place of the test piece and low test efficiency of existing microwave devices.

In order to achieve the above object, the present invention provides a small microwave dark box, including a dark box body, the inner wall of the dark box body is completely covered with a microwave absorbing device, and the dark box body is provided with a test piece for fixing the equipment to be tested Tooling, the equipment to be tested and the tooling to be tested are plugged and fixed, and a movable test antenna for testing the equipment to be tested is provided in the dark box body, and a test antenna for driving An overall mobile camera obscura.

The present application provides a test environment free from clutter interference for the equipment under test by providing a dark box body and covering the inner wall of the dark box body with a wave absorbing device, thereby improving the test accuracy and efficiency of the equipment under test. By setting the tooling with the test piece to fix the equipment under test that needs to be tested, and the equipment under test and the tooling with the test piece are fixed by plugging, which is convenient for the placement, fixing and removal of the equipment under test, and saves the removal of the equipment under test. Save time and improve the overall test efficiency. By setting a movable test antenna for testing the equipment under test, the moving space of the test antenna is the area space of the equipment under test, which meets the requirements of this project for receiving or transmitting microwave signals. The camera obscura is installed under the box body to drive the overall movement, which facilitates the overall transfer and movement of the camera obscura; in addition, the camera camera can be used to place testing microwave instruments and other equipment to rationally use the laboratory space and avoid space waste.

In a preferred implementation of a small-sized microwave obscura, the tooling of the test piece is provided with a tooling limiting groove for placing the device under test, and the tooling limiting groove is provided with a positioning hole and a positioning pin. The device under test is provided with a position-limiting structure mated with the positioning hole and the positioning pin.

By setting the tooling limit groove for placing the device under test on the tooling to be tested, the device to be tested can be limited and fixed. By setting the positioning hole and the positioning pin at the tooling limit groove The limit structure on the test equipment cooperates with the plug-in connection, which solves the problem of complex fixed structure between the traditional standby equipment and the black box body, and the problem of installation and disassembly without letting go, improves the replacement efficiency of the test equipment, thereby improving the detection of the dark box efficiency.

In a preferred implementation of a small-sized microwave camera obscura, the camera obscura cart includes a support frame, universal wheels are provided under the support frame, and a universal wheel is provided on the universal wheels to control the rotation of the universal wheels. Locking structure.

By setting the support frame on the camera obscura, it can be used to place equipment such as microwave instruments for testing, so as to make reasonable use of the laboratory space and avoid space waste. Universal wheels are provided under the support frame to facilitate the overall transfer and movement of the dark box. At the same time, in order to fix the dark box and prevent the dark box from moving during use, a locking structure is set on the universal wheel. When the dark box moves to a suitable position , Lock the universal wheel with a locking structure to prevent the dark box from moving. When it is necessary to transfer and move the camera obscura, the locking structure is opened, and the universal wheels can be moved to facilitate the transfer of the camera camera.

In a preferred implementation manner of a small microwave dark box, a mechanical arm that drives the test antenna to move is provided in the dark box, and the movable end of the mechanical arm is detachably and fixedly connected to the test antenna.

By setting the mechanical arm to drive the test antenna to move, the position control of the test antenna is convenient, and the problem of the complex moving structure of the test antenna in the transmission dark box is solved. Using the mechanical arm can control the movement of the test antenna more accurately, which is convenient for the operator to treat more accurately Testing equipment is used for detection, and the structure of the mechanical arm is simple, which is convenient for the manufacture of the black box.

In a preferred implementation manner of a small microwave dark box, the mechanical arm is a four-axis mechanical arm built in a controller, and the mechanical arm is detachably and fixedly connected to the body of the dark box.

It should be noted that this application does not impose specific limitations on the structure of the robotic arm. The preferred implementation is: a four-axis robotic arm built into the controller is used. This type of robotic arm better meets the operation of the dark box in this application. The movement of the antenna can be controlled more accurately, and the accuracy of testing the device under test can be improved. By detachably and fixedly connecting the mechanical arm with the dark box body, it is convenient for the fixed installation of the mechanical arm and the dark box body, and it is also convenient to disassemble the mechanical arm from the dark box body for maintenance or replacement, thereby improving the maintenance efficiency.

In a preferred implementation of a small microwave dark box, the dark box body includes an openable shield door, one end of the shield door is hinged to the dark box body, and the other end of the shield door is connected to the The dark box body is locked and fixed by a locking structure, and the absorbing device is provided on the inner side of the screen door.

By setting a screen door in the camera obscura, the inside of the screen door is provided with the absorbing device to ensure the shielding of the area to be tested in the camera obscura; the switch of the screen door controls the switch of the area to be tested in the camera back, which is convenient for the equipment to be tested Putting in and taking out from the area to be tested; by hinged one end of the screen door with the dark box body, and locking and cooperating the other end with the dark box body, it is convenient to open and close the screen door and improve the replacement of the equipment to be tested Efficiency, thereby improving the test efficiency of the black box.

In a preferred implementation mode of a small-sized microwave dark box, an illumination device, a video monitoring device and a signal passing wall device are arranged in the dark box body, and a test cabinet for controlling the test operation is arranged outside the dark box body, The mechanical arm, the test antenna, the lighting device, the video monitoring device and the signal passing through the wall device are all electrically connected to the test cabinet, and the test cabinet is connected to a computer.

By installing a lighting device, a video monitoring device and a signal passing wall device in the dark box, the lighting device illuminates the area to be tested in the dark box, and then through the video monitoring device and the signal passing the wall device, the area to be tested in the dark box is The situation is clearly fed back to the operator's computer equipment, and the test cabinet for controlling the test operation is set outside the black box to control the mechanical arm, test antenna, lighting device, video monitoring device and signal passing through the wall of the black box. The working state realizes intelligent operation, which is convenient for the operator to observe and control the working state of the dark box from time to time.

In a preferred implementation manner of a small microwave dark box, the absorbing device is made of polyurethane sponge magnetic absorbing material, and the absorbing device is magnetically fixed to the inner wall of the dark box body.

The absorbing device is made of polyurethane sponge magnetic absorbing material, which is environmentally friendly and glue-free. It is a solid reticulated foam absorber, which has good broadband absorbing performance in the case of vertical and oblique incidence of electromagnetic waves. Widely used in various microwave dark boxes and darkrooms. The computer profiling cutting machine is used to cut the polyurethane foam pyramid, which has beautiful appearance and structure, accurate size, no dust falling off, no moisture absorption and discoloration. The production adopts specially designed and manufactured production equipment and strict production process control to ensure the consistency, stability and reliability of product performance, and to ensure the performance requirements of the overall darkroom. The hexahedron of the obscura is composed of six absorbing materials, all of which are custom-cut and fixed shapes. At the same time, the dark box adopts magnetic absorbing wave-absorbing material, and the wave-absorbing device is magnetically fixed to the inner wall of the dark box body, which is convenient for installation and disassembly.

In a preferred implementation manner of a small-sized microwave dark box, a plurality of handles or hoisting rings are arranged above the dark box body.

By arranging a plurality of handles or hoisting rings on the top of the dark box body, it is convenient for the overall hoisting and transfer of the dark box body.

In a preferred implementation of a small-sized microwave dark box, the inner structure of the shielding door adopts a back-shaped double-layer shielding groove structure, and a shielding and sealing reed is provided on the contact surface between the shielding door and the body of the dark box.

The inner structure of the screen door adopts double-layer shielding groove structure of back shape, and the contact surface between the screen door and the black box body is provided with a shielding sealing reed, so as to ensure the overall shielding performance of the black box body. Since the screen door needs to be opened and closed frequently to place and take out the equipment to be tested, the design of the screen door is particularly important. In order to ensure the overall shielding of the black box, the inner structure of the screen door adopts a back-shaped double-layer shielding groove structure , to facilitate the fixed fit between the screen door and the camera back door, and also improve the shielding of the contact surface between the two; at the same time, the contact surface between the screen door and the camera backdoor is provided with a shielding sealing reed, which further ensures that the camera back door overall shielding.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the present invention, and constitute a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, and do not constitute improper limitations to the present invention. In the attached picture:

Fig. 1 is a schematic diagram of the structure of the complete machine in an embodiment of the present invention;

Fig. 2 is a schematic diagram of the tooling structure of the test piece in an embodiment of the present invention.

Explanation of reference signs:

1. Black box body; 2. Mechanical arm; 3. Test antenna; 4. Equipment to be tested; 5. Tooling of the test piece, 51. Positioning pin, 52. Positioning hole, 53. Tooling limit slot; 6. Absorbing waves Device; 7. Camera obscura, 71. Support frame; 8. Universal wheel; 9. Handle.

Detailed ways

In order to explain the overall concept of the present invention more clearly, the following will be described in detail by way of examples in combination with the accompanying drawings.

It should be noted that many specific details have been set forth in the following description so as to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, therefore, the protection scope of the present invention is not limited by the following The limitations of the specific embodiments disclosed.

In the present invention, descriptions such as "first", "second" and so on are used for description purposes only, and should not be understood as indicating or implying their relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features.

As shown in Fig. 1 and Fig. 2, the present invention provides a kind of small-sized microwave dark box, comprises dark box box body 1, and the inner wall of described dark box box body 1 is all covered with wave-absorbing device 6, and described dark box box body 1 is provided with Fix the tooling 5 of the device under test 3, the device 3 and the tooling 5 of the device under test are plugged and fixed, and the dark box body 1 is provided with a removable tool for testing the device 3 For testing the antenna 3, a dark box frame trolley 7 for driving the overall movement is provided under the dark box body 1 .

Most of the existing microwave devices are large-scale microwave anechoic chambers, which are special spaces composed of absorbing materials and metal shields, which provide artificially empty "free space" conditions. Testing wireless communication products and electronic products such as antennas and radars in a microwave anechoic chamber can avoid clutter interference and improve the test accuracy and efficiency of the equipment under test. Since the microwave anechoic chamber is a large-scale microwave device, it can be used to test wireless communication products and electronic products such as large antennas and radars. However, many laboratories have limited space and need to test small antennas, radars and other wireless communication products and electronic products. , does not require such a large equipment as a microwave darkroom, so this application mainly develops a small microwave device on the basis of meeting the customer's testing needs, that is, a small microwave dark box, which uses a small dark box body 1. The entire inner wall of the dark box body 1 is covered with a wave-absorbing device 6 to create a shielded test space, and a movable antenna is set to meet the test requirements. At the same time, by setting the tooling 5 of the test piece and the equipment under test 3 to be plugged and fixed, the pick-and-place replacement efficiency of the equipment under test 3 is improved, thereby improving the test efficiency. In order to facilitate the transfer and movement of the camera obscura, a camera camera 7 is provided for the camera camera obscura. This application improves the efficiency of placement and disassembly of the equipment to be tested 3 on the basis of satisfying the testing of wireless communication products and electronic products such as small antennas and radars, that is, improves the overall test efficiency of the dark box; 7 Solve the problem of inconvenient movement and transfer of the traditional black box.

The present application provides a test environment free from clutter interference for the device under test 3 by providing a dark box body 1 and covering the inner wall of the dark box body 1 with a wave absorbing device 6, thereby improving the test accuracy and efficiency of the device under test. By setting the tooling with the test piece to fix the equipment under test 3 that needs to be tested, and the equipment under test 3 and the tooling with the test piece are fixed by plugging, which is convenient for placing, fixing and taking out the equipment under test 3, and saves the equipment to be tested The pick-and-place time of equipment 3 improves the overall test efficiency. By setting the movable test antenna 3 for testing the device under test 3 , the moving space of the test antenna 3 is the area space of the device under test 3 , which meets the requirements of this project for receiving or transmitting microwave signals. The bottom of the camera obscura box body 1 is provided with a camera obscura car 7 for driving the overall movement, which facilitates the overall transfer of the camera obscura; Waste of space.

It should be noted that this application does not specifically limit the specific plug-in structure between the tooling 5 of the test piece and the device 3 to be tested, and the preferred implementation mode is:

The tooling 5 of the test piece is provided with a tooling limiting groove 53 for placing the device under test 3, and the tooling limiting groove 53 is provided with a positioning hole 52 and a positioning pin 51. There is a position-limiting structure mated with the positioning hole 52 and the positioning pin 51 .

By setting the tooling limit groove 53 for placing the device under test 3 on the tooling 5 of the test piece, the device 3 to be tested 3 plays a role of limiting and fixing, and by providing a positioning hole at the tooling limit groove 53 52 and locating pin 51 are plugged together with the limit structure on the device under test 3, which solves the problem of complex fixed structure between the traditional device to be tested and the dark box body 1, and the problem of installation and disassembly without putting it away, and improves the device under test 3 Replacement efficiency, thereby improving the detection efficiency of the dark box.

In a preferred implementation of a small-sized microwave dark box, the black box frame trolley 7 includes a support frame 71, and a universal wheel 8 is provided under the support frame 71, and a control wheel 8 is provided on the universal wheel 8. The locking structure that universal wheel 8 rotates.

By arranging the support frame 71 on the camera obscura 7, it can be used to place equipment such as microwave instruments for testing, so that the space of the laboratory can be rationally used and space waste can be avoided. By being provided with universal wheels 8 below the support frame 71, it is convenient for the overall transfer and movement of the camera obscura. During the position, universal wheel 8 is locked with locking structure, prevents camera obscura from moving. When it is necessary to transfer and move the camera obscura, the locking structure is opened, and the universal wheel 8 can be moved to facilitate the transfer of the camera camera obscura.

It should be noted that the present application does not limit the specific structure of the support frame 71 of the dark box trolley 7, which can be designed according to the actual equipment placement requirements, and can be a single-layer support frame 71 or a multi-layer support frame 71. It is used for arranging related equipment or materials related to the use of the camera obscura, rationally planning and utilizing the space.

In a preferred implementation of a small-sized microwave dark box, a mechanical arm 2 that drives the test antenna 3 to move is provided in the dark box body 1, and the movable end of the mechanical arm 2 is detachable from the test antenna 3 fixed connection.

By setting the mechanical arm 2 to drive the test antenna 3 to move, the position control of the test antenna 3 is convenient, and the problem of the complex moving structure of the test antenna 3 in the transmission dark box is solved. Using the mechanical arm 2 can control the movement of the test antenna 3 more accurately, which is convenient. The operator can more accurately detect the device 3 to be tested, and the structure of the mechanical arm 2 is simple, which facilitates the manufacture of the black box.

The traditional test antenna 3 is to set slide rails in multiple directions in the box of the dark box, and a driving device is required to drive the test antenna 3 to move. In this way, the structure is complicated, the control accuracy is not high, and it is inconvenient to test the antenna 3 precise test. Therefore, the structure is simplified in the present application, so that the control of the test antenna 3 is more precise.

In a preferred implementation of a small microwave dark box, the robotic arm 2 is a four-axis robotic arm 2 with a built-in controller, and the robotic arm 2 is detachably and fixedly connected to the dark box body 1 .

It should be noted that this application does not impose specific restrictions on the structure of the robotic arm 2. The preferred implementation mode is: a four-axis robotic arm 2 with a built-in controller is used. This kind of robotic arm 2 better meets the requirements of the black box in this application. Using the operation, the movement of the antenna can be controlled more precisely, and the accuracy of testing the device under test 3 can be improved. By detachably and fixedly connecting the mechanical arm 2 to the dark box body 1, the fixed installation of the mechanical arm 2 and the dark box body 1 is convenient, and it is also convenient to disassemble the mechanical arm 2 from the dark box body 1 for maintenance or replacement, improving the maintenance efficiency .

The robotic arm 2 is a domestic mature high-precision industrial collaborative robotic arm 2. The degree of freedom of the robotic arm 2 is a 4-axis robotic arm 2, and the load weight of the robotic arm 2 is 1Kg; the arm span of the robotic arm 2 is 320mm. It adopts the design of integrated drive and control, and a built-in controller. The robotic arm 2 will be installed in the dark box, and the end of the robotic arm 2 will be loaded to test the antenna 3. The repeatability of the position of the robotic arm 2 is ±0.02mm.

It should be noted that this application does not make specific restrictions on the structure and installation method of the screen door, and the preferred implementation method is:

The camera back door 1 includes an openable screen door, one end of the screen door is hinged to the camera back door 1, and the other end of the screen door is locked and fixed to the camera back door 1 through a locking structure. , the inner side of the shielded door is provided with the absorbing device 6 .

By arranging a shield door at the camera obscura casing 1, the inboard of the shield door is provided with the absorbing device 6 to ensure the shielding of the region to be measured in the camera obscura casing 1; The switch is convenient for the device under test 3 to be put in and taken out from the area to be tested; by hinged one end of the screen door with the camera back door 1, and the other end is locked and matched with the camera back door 1, it facilitates the opening of the screen door and close, improve the replacement efficiency of the device under test 3, thereby improving the test efficiency of the dark box.

In a preferred implementation of a small-sized microwave dark box, the dark box body 1 is provided with lighting devices, video monitoring devices and signal passing through the wall device, and the outside of the dark box body 1 is provided with a test unit for controlling the test operation. The cabinet, the mechanical arm 2, the test antenna 3, the lighting device, the video monitoring device and the signal passing through the wall device are all electrically connected to the test cabinet, and the test cabinet is connected to a computer.

By being provided with an illumination device, a video monitoring device, and a signal passing wall device in the dark box body 1, the lighting device illuminates the area to be tested in the dark box body 1, and then the dark box body 1 is connected by the video monitoring device and the signal passing wall device. The situation in the area to be tested is clearly fed back to the operator's computer equipment, and a test cabinet for controlling the test operation is provided outside the camera obscura 1 to control the mechanical arm 2, the test antenna 3, and the lighting device in the camera obscura 1 , The working state of the video monitoring device and the signal passing through the wall device realizes intelligent operation, which is convenient for the operator to observe and control the working state of the dark box from time to time.

It should be noted that the switching state of the lighting device in this application can be controlled through the test cabinet, or the switching button can be arranged on the outer wall of the dark box body 1 to control the switching state independently. The lighting device is preferably an annular light strip, which improves the overall brightness in the dark box body 1 and prevents corners from having insufficient brightness.

In a preferred implementation of a small-sized microwave dark box, the absorbing device 6 is made of polyurethane sponge magnetic absorbing material, and the absorbing device 6 is magnetically fixed to the inner wall of the dark box body 1 .

The wave-absorbing device 6 is made of polyurethane sponge magnetic wave-absorbing material, which is environmentally friendly and glue-free. It is a solid reticulated foam absorber, which has good broadband wave-absorbing performance in the case of vertical incidence and oblique incidence of electromagnetic waves. , Widely used in various microwave dark boxes and darkrooms. The computer profiling cutting machine is used to cut the polyurethane foam pyramid, which has beautiful appearance and structure, accurate size, no dust falling off, no moisture absorption and discoloration. The production adopts specially designed and manufactured production equipment and strict production process control to ensure the consistency, stability and reliability of product performance, and to ensure the performance requirements of the overall darkroom. The hexahedron of the obscura is composed of six absorbing materials, all of which are custom-cut and fixed shapes. At the same time, the dark box adopts a magnetic absorbing wave-absorbing material, and the wave-absorbing device 6 is magnetically fixed to the inner wall of the dark box body 1, which is convenient for installation and disassembly.

In a preferred implementation manner of a small microwave dark box, a plurality of handles 9 or hoisting rings are arranged on the upper side of the dark box body 1 .

By arranging a plurality of handles 9 or hoisting rings above the dark box body 1, the overall hoisting and transfer of the dark box body 1 is facilitated.

In a preferred implementation of a small microwave dark box, the inner structure of the shielded door adopts a back-shaped double-layer shielded groove structure, and the contact surface between the shielded door and the dark box body 1 is provided with a shielding sealing reed .

By adopting the double-layer shielding groove structure of double-layered shielding groove structure in the inner structure of the shielding door, and the contact surface between the shielding door and the dark box body 1 is provided with a shielding sealing reed, so as to ensure the overall shielding performance of the dark box body 1 . Since the screen door needs to be frequently opened and closed to place and take out the device under test 3, the design of the screen door is particularly important. In order to ensure the overall shielding performance of the black box body 1, the inner structure of the screen door is double-layer shielded concave Groove structure facilitates the fixed cooperation between the screen door and the camera obscura box 1, and also improves the shielding of the contact surfaces of the two; at the same time, the contact surface between the screen door and the box camera camera 1 is provided with a shielding sealing reed, which ensures more The overall shielding of the black box casing 1 is improved.

The present invention adopts the minimization and fast plug-in design, and a specific embodiment is provided below:

The black box body 1 is a portable and miniaturized black box with a size of 0.9m (length)×0.9m (width)×1.7m (height) (including the black box rack car 7), and the inside is equipped with magnetic absorbing materials, and the size of the screen door is 0.6m ×0.7m; the test antenna has a working frequency of 38-40GHz, used to receive or transmit broadband microwave signals, feed the microwave signals to the device under test 3 or receive the transmitted signals from the device under test 3, and send them to the vector network analyzer through the radio frequency cable; 4 The axis mechanical arm 2 is used to clamp the test antenna 3 and perform channel alignment on the test unit of the device to be tested 3; Take out the test piece.

Main Specifications:

Small Microwave Obscura:

Frequency range: 1GHzˉ40GHz;

Shielding performance: not less than 60dB@(1GHzˉ40GHz);

Reflectivity performance of built-in absorbing material: ≤-25dB@4GHz, ≤-35dB@8GHz, ≤

-40dB@18GHz, ≤-50dB@40GHz;

Supporting air-fed broadband antenna probe, working frequency band 8-40GHz;

The four-axis robot arm 2 and the radio frequency quick-installation base can be installed inside, and it has an external interface, which supports the connection with the test console and the switch amplifier combination.

Four-axis robotic arm 2:

Four-axis free movement;

The movable range is not less than 200mm×200mm (tentative);

Repeatability: ±0.05mm (tentative);

Provide external program-controlled software and hardware interfaces.

DUT tooling 5:

Support dual-frequency antenna-feeder combination quick installation test in two sizes

Support at least 300 times of product under test insertion, and provide replaceable spare parts;

There are pin holes on the base to ensure that the alignment accuracy of the product does not exceed 0.1mm, and the flatness does not exceed 0.02mm.

The technical solutions protected by the present invention are not limited to the above-mentioned embodiments, and it should be pointed out that the combination of the technical solutions in any one embodiment and the technical solutions in one or more other embodiments is within the protection scope of the present invention. Although the present invention has been described in detail with general descriptions and specific examples above, it is obvious to those skilled in the art that some modifications or improvements can be made on the basis of the present invention. Therefore, the modifications or improvements made on the basis of not departing from the spirit of the present invention all belong to the protection scope of the present invention.

Claims (10)

1. The utility model provides a small-size microwave camera bellows, its characterized in that includes camera bellows box, the inner wall of camera bellows box is whole to be covered has the wave absorbing device, be equipped with in the camera bellows box and be used for fixed equipment to be tested's piece frock to await measuring, equipment to await measuring with the piece frock to await measuring is pegged graft fixedly, be equipped with mobilizable test antenna that is used for testing equipment to await measuring in the camera bellows box, the below of camera bellows box is equipped with and is used for driving the camera bellows frame car of global motion.

2. The small microwave camera bellows according to claim 1, wherein the tool for the part to be tested is provided with a tool limiting groove for placing the device to be tested, a positioning hole and a positioning pin are arranged at the tool limiting groove, and a limiting structure matched with the positioning hole and the positioning pin for insertion is arranged on the device to be tested.

3. The small-sized microwave camera bellows of claim 1, wherein the camera bellows trolley comprises a supporting frame, a universal wheel is arranged below the supporting frame, and a locking structure for controlling the universal wheel to rotate is arranged on the universal wheel.

4. The small-sized microwave camera bellows of claim 1, wherein a mechanical arm for driving the test antenna to move is arranged in the camera bellows body, and a movable end of the mechanical arm is detachably and fixedly connected with the test antenna.

5. The small microwave camera bellows of claim 4, wherein the mechanical arm is a four-axis mechanical arm with a built-in controller, and the mechanical arm is detachably and fixedly connected with the camera bellows body.

6. The small-sized microwave camera bellows according to claim 5, wherein the camera bellows body comprises a openable shielding door, one end of the shielding door is hinged to the camera bellows body, the other end of the shielding door is in locking fit with the camera bellows body, and the wave absorbing device is arranged on the inner side of the shielding door.

7. The small-sized microwave camera bellows according to claim 6, wherein a lighting device, a video monitoring device and a signal wall passing device are arranged in the camera bellows body, a test cabinet for controlling test operation is arranged outside the camera bellows body, the mechanical arm, the test antenna, the lighting device, the video monitoring device and the signal wall passing device are all electrically connected with the test cabinet, and the test cabinet is connected with a computer.

8. The small microwave camera bellows of claim 1, wherein the wave absorbing device is made of polyurethane sponge magnetic wave absorbing material, and the wave absorbing device is magnetically fixed with the inner wall of the bellows body.

9. The miniature microwave camera bellows of claim 1, wherein a plurality of handles or lifting loops are provided above the bellows body.

10. The small microwave camera bellows of claim 6, wherein the inner layer structure of the shielding door adopts a double-layer shielding groove structure in a shape like a Chinese character 'hui', and a contact surface of the shielding door and the camera bellows body is provided with a shielding sealing reed.