Testing device for low noise amplifier

Abstract

The invention discloses a testing device for a low-noise amplifier, and belongs to the technical field of testing devices, the testing device comprises a base box, the top of the base box is connected with a supporting plate, the top of the supporting plate is provided with a conversion clamping assembly, and the bottom of the supporting plate is provided with a blanking buffer assembly for buffering the low-noise amplifier. According to the device, multi-station continuous testing and continuous action taking are achieved through the arrangement of the conversion clamping assembly and the arrangement of a plurality of fixing rings, the device is in a full-load working state all the time, and therefore the detection efficiency is improved, and meanwhile through cooperation of a half gear ring, a driving gear ring, a transmission gear ring, a transmission gear, a lead screw base and a clamping plate, the detection efficiency is improved. According to the low-noise amplifier testing device, automatic clamping limiting and automatic discharging of the low-noise amplifier can be achieved, so that the automation degree of the device is improved, the low-noise amplifier is clamped through the clamping plate, the stability of the low-noise amplifier in the testing process is improved, and the stability of the testing process is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of testing devices, and in particular relates to a testing device for a low-noise amplifier. Background Art

[0002] Low-noise amplifiers (LNAs) are amplifiers with very low noise figures. They are generally used as high-frequency or intermediate-frequency preamplifiers for various radio receivers, as well as amplifier circuits for highly sensitive electronic detection equipment. Repeated testing is required at each stage of the development, production, and application of LNAs to ensure product quality and reliability.

[0003] The invention with publication number CN114814442A discloses a low-noise amplifier test system, including a controllable constant current power supply, a module access device and a vector network analysis device. The module access device is provided with an access slot, and the vector network analysis device is used to couple with the test subject in the access slot. The vector network analysis device includes an S parameter test module and a 1dB compression point test module. The S parameter test module is used to obtain the S parameters of the test subject based on the test signal emitted by the test subject in the module access device, and the 1dB compression point test module is used to obtain the 1dB compression point of the test subject based on the test signal emitted by the test subject in the module access device. This application simplifies the low-noise amplifier test, configures the low-noise amplifier in detail through a vector network analyzer, calibrates the low-noise amplifier test program, and uses a constant current source for driving current power supply, so as to quickly obtain the good or bad status of the low-noise amplifier and improve the development and testing efficiency. However, in the actual testing process, the existing test device is difficult to achieve continuous testing, and the test efficiency and degree of automation are low. Therefore, certain improvements are needed. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems that existing testing devices are difficult to implement continuous testing and have low testing efficiency and automation, and to propose a testing device for a low noise amplifier.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A test device for a low-noise amplifier, comprising a base box, a support plate connected to the top of the base box, a conversion clamping assembly provided on the top of the support plate, a drop buffer assembly for buffering the low-noise amplifier provided at the bottom of the support plate, a connecting bracket provided on one side of the base box, a test box and an electrical connector provided at the bottom of the connecting bracket, and an automatic connecting assembly provided on one side of the connecting bracket;

[0007] The conversion clamping assembly includes a plurality of fixed rings distributed in a circular array, the top of the support plate is rotatably connected to a rotating table, the outer peripheral side of the rotating table is connected to a plurality of connecting columns distributed in a circular array, the connecting column is connected to the outer peripheral side of the fixed ring away from the rotating table, the outer peripheral side of the fixed ring is connected to two symmetrically arranged mounting brackets, the inner side of the mounting bracket is rotatably connected to a reciprocating screw, the outer surface of the reciprocating screw away from the mounting bracket is threadedly connected to a screw seat, the end of the screw seat away from the reciprocating screw extends to the inner side of the fixed ring and is connected to a clamping plate, the clamping plate is used to cooperate with the movement of the screw seat to automatically clamp and limit the low-noise amplifier.

[0008] As a further description of the above technical solution:

[0009] The outer surface of the fixed ring is rotatably connected to the driving gear ring, and the top of the driving gear ring is connected to the transmission gear ring. The end of the reciprocating screw away from the screw seat extends to the other side of the mounting frame and is connected to the transmission gear. The transmission gear is meshed with the driving gear ring. The outer surface of the fixed ring is provided with two symmetrically arranged sliding grooves, and the screw seat is slidably connected to the sliding grooves. The cross-sections of the screw seat and the sliding groove are both rectangular.

[0010] As a further description of the above technical solution:

[0011] A half gear ring is connected to the top of the support plate, and the drive gear ring can be engaged with the half gear ring during rotation. A drive motor is fixedly installed inside the base box through a mounting seat, and one end of the drive motor output shaft is connected to a rotating shaft. The rotating shaft extends away from the end of the drive motor to the other side of the support plate and is connected to the bottom of the turntable.

[0012] As a further description of the above technical solution:

[0013] The outer circumference of the fixing ring is connected to a plurality of fixing blocks distributed in a circular array, the bottom of the fixing block is connected to a limiting block, and the top of the driving gear ring is provided with a plurality of limiting holes distributed in a circular array. The limiting blocks and the limiting holes are engaged with each other, and the limiting blocks are flexible plastic blocks.

[0014] As a further description of the above technical solution:

[0015] The dropping buffer assembly includes a dropping tube, the top of the dropping tube is connected to the bottom of the support plate, a dropping trough is provided on one side of the support plate, the dropping trough and the axis of the dropping tube are located on the same axis, a plurality of rotating grooves distributed in a circular array are provided at the bottom of the dropping tube, a rotating plate is rotatably connected in the rotating groove through a connecting shaft, a buffer plate for buffering the falling of the low-noise amplifier is connected to one side of the rotating plate, a second spring is connected to the top of the side of the rotating plate away from the buffer plate, and a fixed plate is connected to the end of the second spring away from the rotating plate, and the fixed plate is connected to the outer peripheral side of the dropping tube, and a collection box is provided on one side of the base box, and the collection box is located directly below the dropping tube.

[0016] As a further description of the above technical solution:

[0017] Limiting plates are provided on both sides of the rotating plate, one side of the limiting plate is connected to the outer peripheral side of the blanking tube, and limiting rods are connected to both sides of the rotating plate, and the outer peripheral side of the limiting rod is in contact with the top of the limiting plate.

[0018] As a further description of the above technical solution:

[0019] The automatic connection assembly includes two symmetrically arranged limit slot seats, the bottom of the connecting bracket is connected to a fixed platform, the fixed platform is connected to the outer peripheral side of the base box, the bottom of the limit slot seat is connected to the top of the fixed platform, the limit slot seat is slidably connected to a push block, the outer peripheral side of the fixed ring is provided with two symmetrically arranged sliding holes, a test pipe is slidably connected in the sliding holes, the side of the test pipe away from the fixed ring is connected to a power box, the side of the power box away from the test pipe is connected to a moving wheel, the pushing block can drive the moving wheel to move during the movement, and the top of the power box is provided with a power connection hole for matching with the power connection head.

[0020] As a further description of the above technical solution:

[0021] Two symmetrically arranged telescopic rods are connected to the side of the power connection box away from the moving wheel, and one end of the telescopic rod away from the power connection box is connected to the outer peripheral side of the fixed ring. A first spring is sleeved on the outer surface of the telescopic rod, and the two ends of the first spring are respectively connected to the fixed ring and the power connection box.

[0022] As a further description of the above technical solution:

[0023] The pushing block is threadedly connected to a moving screw on the side away from the base box, and the outer surface of one end of the moving screw is rotatably connected to a mounting piece, the bottom of the mounting frame is connected to the top of the fixed platform, and the moving screw is connected to a driving gear on one side away from the pushing block, and the driving gear is meshed and connected to a driving rack on one side, and a symmetrical through slots are provided on the top of the fixed platform, and the driving rack is slidably connected in the through slots, and the tops of the two driving racks are connected to the same connecting plate, and the side of the connecting plate away from the connecting bracket is connected to two connecting cross plates, and the side of the connecting cross plate away from the connecting plate is connected to one side of the test box.

[0024] As a further description of the above technical solution:

[0025] A movable cylinder is installed on the top of the connecting bracket, and an output end of the movable cylinder extends to the bottom of the connecting bracket and is connected to the top of the test box. A side of the base box away from the fixing platform is connected to the display platform.

[0026] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0027] 1. In the present invention, by setting a conversion clamping assembly, the driving motor drives the rotating table to rotate and stop periodically, and the driving motor drives the clamping plate to move through the rotating table, connecting column, fixed ring, driving gear ring, half gear ring, driving gear ring, transmission gear ring, transmission gear, reciprocating screw and screw seat. The two clamping plates approach each other and gradually fit and clamp the side wall of the low noise amplifier. After the test is completed, the driving motor drives the fixed ring to continue to rotate through the transmission, and the driving gear ring drives the transmission gear to continue to rotate through the transmission gear ring. The transmission gear drives the clamping plate to gradually move away from the low noise amplifier through the reciprocating screw and the driving screw seat and releases the limit on it. When the fixed ring is fixed, the driving motor drives the fixed ring to continue to rotate through the transmission, and the driving gear ring drives the transmission gear to continue to rotate through the transmission gear ring. The transmission gear drives the clamping plate to gradually move away from the low noise amplifier through the reciprocating screw and the driving screw seat and releases the limit on it. When the ring drives the low-noise amplifier to move to the blanking trough position, the low-noise amplifier is blanked through the blanking trough. The setting of multiple fixed rings realizes multi-station continuous testing, and continuous action is taken to keep the device in full-load working state, thereby improving the detection efficiency. At the same time, through the cooperation between the half-toothed ring, the driving toothed ring, the transmission toothed ring, the transmission gear, the screw seat and the clamping plate, the automatic clamping, limiting and automatic blanking of the low-noise amplifier can be realized, thereby improving the degree of automation of the device. The clamping of the low-noise amplifier by the clamping plate improves the stability of the low-noise amplifier during testing, and improves the stability of the testing process.

[0028] 2. In the present invention, by setting up an automatic connection component, the movable cylinder drives the pushing block to move through the test box, the connecting cross plate, the connecting plate, the driving rack, the driving gear and the movable screw. The pushing block drives the test pipe to be connected to the contact element of the low-noise amplifier through the moving wheel and the power connection box, and the test box will drive the power connection head to move downward and be plugged into the power connection hole to complete the electrical connection required for the test, thereby testing the low-noise amplifier and reflecting the test data results on the display table. Through the cooperation of the pushing block and the moving wheel, automatic electrical connection of the low-noise amplifier is achieved, automated testing is realized, and test efficiency is improved.

[0029] 3. In the present invention, by providing a falling buffer assembly, when the low-noise amplifier falls, the buffer plate slows down the falling speed and the impact force of the low-noise amplifier. The buffered low-noise amplifier falls into the collection box. Through the cooperation between the buffer plate, the rotating plate and the second spring, the buffer plate can buffer and slow down the falling low-noise amplifier, reduce the collision force and damage to the low-noise amplifier when falling, and play a protective role in the blanking of the low-noise amplifier. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0031] Figure 2 A schematic diagram of the three-dimensional structure of the present invention from another perspective;

[0032] Figure 3 Schematic diagram of the three-dimensional structure of the conversion clamping assembly of the present invention;

[0033] Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure of part A;

[0034] Figure 5 A schematic diagram of a partial three-dimensional structure of a conversion clamping assembly of the present invention;

[0035] Figure 6 For the present invention Figure 5 The enlarged structural diagram of part B in the middle;

[0036] Figure 7 It is a schematic diagram of the three-dimensional structure of the conversion clamping assembly and the automatic connection assembly of the present invention;

[0037] Figure 8 It is a schematic diagram of the three-dimensional structure of the buffer blanking assembly of the present invention;

[0038] Figure 9 This is a schematic diagram of the three-dimensional structure of the buffer blanking component of the present invention from another perspective.

[0039] Legend:

[0040] 1. Base box; 2. Display table; 3. Support plate; 4. Conversion clamping assembly; 401. Turntable; 402. Drive motor; 403. Connecting column; 404. Fixing ring; 405. Clamping plate; 406. Drive gear ring; 407. Transmission gear; 408. Limit block; 409. Limit hole; 410. Transmission gear ring; 411. Mounting frame; 412. Reciprocating screw; 413. Screw seat; 414. Half gear ring; 5. Automatic connection assembly; 501. Drive rack; 502. Connecting plate; 503. Electrical box; 504. Mobile Wheel; 505, power connection hole; 506, first spring; 507, telescopic rod; 508, test pipe; 509, connecting cross plate; 510, driving gear; 511, pushing block; 512, limiting slot seat; 6, blanking buffer assembly; 601, blanking tube; 602, fixed plate; 603, second spring; 604, limiting rod; 605, limiting plate; 606, rotating plate; 607, buffer plate; 7, collecting box; 8, fixing table; 9, movable cylinder; 10, test box; 11, power connection head; 12, connecting bracket; 13, blanking chute. DETAILED DESCRIPTION

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0042] See also Figures 1-9 , the present invention provides a technical solution:

[0043] A test device for a low-noise amplifier includes a base box 1, a support plate 3 is connected to the top of the base box 1, a conversion clamping assembly 4 is provided on the top of the support plate 3, a blanking buffer assembly 6 for buffering the low-noise amplifier is provided at the bottom of the support plate 3, a connecting bracket 12 is provided on one side of the base box 1, a test box 10 and an electrical connector 11 are provided at the bottom of the connecting bracket 12, an automatic connecting assembly 5 is provided on one side of the connecting bracket 12, a movable cylinder 9 is installed on the top of the connecting bracket 12, the output end of the movable cylinder 9 extends to the bottom of the connecting bracket 12 and is connected to the top of the test box 10, and a display table 2 is connected to the side of the base box 1 away from the fixing table 8.

[0044] The conversion clamping assembly 4 includes a plurality of fixed rings 404 distributed in a circular array, the top of the support plate 3 is rotatably connected to a rotating table 401, the outer peripheral side of the rotating table 401 is connected to a plurality of connecting columns 403 distributed in a circular array, the connecting column 403 is connected to the outer peripheral side of the fixed ring 404 away from the rotating table 401, and the outer peripheral side of the fixed ring 404 is connected to two symmetrically arranged mounting brackets 411, the inner side of the mounting bracket 411 is rotatably connected to a reciprocating screw 412, and the reciprocating screw 412 is away from the mounting bracket. The outer surface of one end of the frame 411 is threadedly connected to a screw seat 413, and the screw seat 413 extends to the inner side of the fixed ring 404 away from the end of the reciprocating screw 412 and is connected to a clamping plate 405. The clamping plate 405 is used to automatically clamp and limit the low noise amplifier in cooperation with the movement of the screw seat 413. The outer surface of the fixed ring 404 is rotatably connected to a drive gear ring 406, and the top of the drive gear ring 406 is connected to a transmission gear ring 410. The reciprocating screw 412 extends to the installation side away from the end of the screw seat 413. The other side of the frame 411 is connected to a transmission gear 407, which is meshed with the drive gear ring 406. The outer surface of the fixed ring 404 is provided with two symmetrical sliding grooves, and the screw seat 413 is slidably connected to the sliding groove. The cross-sectional shapes of the screw seat 413 and the sliding groove are both rectangular. A half gear ring 414 is connected to the top of the support plate 3, and the drive gear ring 406 can be meshed with the half gear ring 414 during the rotation process. The drive motor is fixedly installed inside the base box 1 through the mounting seat. 402, one end of the output shaft of the driving motor 402 is connected to a rotating shaft, the end of the rotating shaft away from the driving motor 402 extends to the other side of the support plate 3 and is connected to the bottom of the rotating table 401, the outer peripheral side of the fixing ring 404 is connected to a plurality of fixed blocks distributed in a circular array, the bottom of the fixed block is connected to a limiting block 408, and the top of the driving gear ring 406 is provided with a plurality of limiting holes 409 distributed in a circular array, the limiting blocks 408 and the limiting holes 409 are engaged with each other, and the limiting blocks 408 are flexible plastic blocks.

[0045] The specific implementation method is as follows: by setting a conversion clamping component 4, the driving motor 402 drives the rotating table 401 to rotate and stop periodically, and the driving motor 402 drives the clamping plate 405 to move through the rotating table 401, the connecting column 403, the fixed ring 404, the driving gear ring 406, the half gear ring 414, the driving gear ring 406, the transmission gear ring 410, the transmission gear 407, the reciprocating screw 412 and the screw seat 413, and the two clamping plates 405 approach each other and gradually fit and clamp the side wall of the low noise amplifier. After the test is completed, the driving motor 402 drives the fixed ring 404 to continue to rotate through the transmission, and the driving gear ring 406 drives the transmission gear 407 to continue to rotate through the transmission gear ring 410, and the transmission gear 407 is driven by the reciprocating screw 412. The reciprocating screw 412 and the screw seat 413 drive the clamping plate 405 to gradually move away from the low-noise amplifier and release the limit on it. When the fixed ring 404 drives the low-noise amplifier to move to the blanking trough 13 position, the low-noise amplifier is blanked through the blanking trough 13. The setting of multiple fixed rings 404 can realize multi-station continuous testing, and continuous action can be taken to keep the device in full-load working state, thereby improving the detection efficiency. At the same time, through the cooperation between the half gear ring 414, the drive gear ring 406, the transmission gear ring 410, the transmission gear 407, the screw seat 413 and the clamping plate 405, the automatic clamping, limiting and automatic blanking of the low-noise amplifier can be realized, thereby improving the degree of automation of the device.

[0046] The drop buffer assembly 6 includes a drop tube 601, the top of the drop tube 601 is connected to the bottom of the support plate 3, a drop groove 13 is provided on one side of the support plate 3, the drop groove 13 and the axis of the drop tube 601 are located on the same axis, a plurality of rotating grooves distributed in a circumferential array are provided at the bottom of the drop tube 601, a rotating plate 606 is connected to the rotating groove through a connecting shaft, a buffer plate 607 for buffering the low noise amplifier is connected to one side of the rotating plate 606, and the top of the rotating plate 606 away from the buffer plate 607 is connected to the It is connected to a second spring 603, and the end of the second spring 603 away from the rotating plate 606 is connected to the fixed plate 602, and the fixed plate 602 is connected to the outer peripheral side of the drop tube 601. A collecting box 7 is provided on one side of the base box 1, and the collecting box 7 is located directly below the drop tube 601. Limiting plates 605 are provided on both sides of the rotating plate 606, and one side of the limiting plate 605 is connected to the outer peripheral side of the drop tube 601. Limiting rods 604 are connected to both sides of the rotating plate 606, and the outer peripheral side of the limiting rod 604 is in contact with the top of the limiting plate 605.

[0047] The specific implementation method is as follows: by setting a falling buffer assembly 6, when the low noise amplifier is falling, the buffer plate 607 slows down the falling speed and the impact force of the low noise amplifier, and the buffered low noise amplifier falls into the collection box 7. Through the cooperation between the buffer plate 607, the rotating plate 606 and the second spring 603, the buffer plate 607 can buffer and slow down the falling low noise amplifier, thereby reducing the collision force and damage to the low noise amplifier when falling.

[0048] The automatic connection component 5 includes two symmetrically arranged limit slots 512, the bottom of the connecting bracket 12 is connected to the fixed platform 8, the fixed platform 8 is connected to the outer peripheral side of the base box 1, the bottom of the limit slot 512 is connected to the top of the fixed platform 8, the limit slot 512 is internally slidably connected to the pushing block 511, the outer peripheral side of the fixed ring 404 is provided with two symmetrically arranged sliding holes, the sliding holes are slidably connected to the test pipe 508, the side of the test pipe 508 away from the fixed ring 404 is connected to the power box 503, the side of the power box 503 away from the test pipe 508 is connected to the moving wheel 504, the pushing block 511 can drive the moving wheel 504 to move during the movement, the top of the power box 503 is provided with a power connection hole 505 for matching with the power head 11, the side of the power box 503 away from the moving wheel 504 is connected to two symmetrically arranged telescopic rods 507, the telescopic rods 507 away from the power box One end of 503 is connected to the outer peripheral side of the fixing ring 404, and a first spring 506 is sleeved on the outer surface of the telescopic rod 507. The two ends of the first spring 506 are respectively connected to the fixing ring 404 and the power box 503. The pushing block 511 is threadedly connected to the side of the base box 1, and the outer surface of one end of the moving screw is rotatably connected to the mounting piece. The bottom of the mounting bracket 411 is connected to the top of the fixed platform 8, and the end of the moving screw away from the pushing block 511 is connected to the driving gear 510. One side of the driving gear 510 is meshed with the driving rack 501. A symmetrically arranged through slots are provided on the top of the fixed platform 8, and the driving rack 501 is slidably connected in the through slots. The tops of the two driving racks 501 are connected to the same connecting plate 502. The side of the connecting plate 502 away from the connecting bracket 12 is connected to two connecting cross plates 509, and the side of the connecting cross plate 509 away from the connecting plate 502 is connected to one side of the test box 10.

[0049] The specific implementation method is as follows: by setting up an automatic connection component 5, the movable cylinder 9 drives the pushing block 511 to move through the test box 10, the connecting cross plate 509, the connecting plate 502, the driving rack 501, the driving gear 510 and the movable screw, and the pushing block 511 drives the test pipe 508 to connect with the contact element of the low-noise amplifier through the moving wheel 504 and the power connection box 503, and the test box 10 will drive the power connection head 11 to move downward and be plugged into the power connection hole 505 to complete the electrical connection required for the test, thereby testing the low-noise amplifier and reflecting the test data results on the display table 2. Through the cooperation of the pushing block 511 and the moving wheel 504, the low-noise amplifier is automatically electrically connected, and automated testing is achieved.

[0050] Working principle: When in use, the staff places the low-noise amplifier in the fixed ring 404, and then the staff starts the drive motor 402. The drive motor 402 drives the rotating table 401 to rotate and stop periodically. During this process, the rotating table 401 drives the connecting column 403 to rotate, and the connecting column 403 drives the fixed ring 404 to rotate. The fixed ring 404 drives the low-noise amplifier to move on the support plate 3. During the rotation, the fixed ring 404 drives the driving gear ring 406 to rotate and gradually engages with the half gear ring 414. The half gear ring 414 drives the driving gear ring 406 to rotate. The driving gear ring 406 drives the transmission gear ring 410 to rotate. The transmission gear ring 410 drives the transmission gear 407 to rotate. The transmission gear ring 410 drives the reciprocating screw 412 to rotate. The reciprocating screw 412 drives the screw seat 413 to move. The screw seat 413 drives the clamping plate 405 to move. The two clamping plates 405 approach each other and gradually fit and clamp the side wall of the low noise amplifier. When the fixing ring 404 moves to the bottom of the test box 10, the clamping limit of the low noise amplifier is completed. At this time, the driving motor 402 stops, so that the low noise amplifier stays directly below the test box 10 and is tested. After the test is completed, the driving motor 402 drives the fixing ring 404 to continue to rotate through the transmission. At this time, the half gear ring 414 drives the driving gear ring 406 to rotate, and the driving gear ring 406 drives the transmission gear 407 to continue to rotate through the transmission gear ring 410. The transmission gear 407 drives the clamping plate 405 to gradually move away from the low noise amplifier and release the limit on it through the reciprocating screw 412 and the driving screw seat 413. When the fixing ring 404 drives the low noise amplifier to move to the position of the blanking trough 13, the low noise amplifier is blanked through the blanking trough 13.

[0051] After the test is completed, the low noise amplifier falls into the dropping tube 601 through the dropping trough 13. During the falling process, the low noise amplifier contacts the buffer plate 607. The buffer plate 607 rotates downward after being impacted, thereby slowing down the falling speed of the low noise amplifier and the impact force it receives. The buffered low noise amplifier falls into the collection box 7. After that, the second spring 603 drives the rotating plate 606 to perform a reset movement. The rotating plate 606 drives the limit rod 604 to rotate and makes the rotating rod fit with the limit plate 605. The rotating plate 606 drives the buffer plate 607 to return to its original position.

[0052] When the low-noise amplifier moves to the bottom of the test box 10, the movable cylinder 9 drives the test box 10 to move downward, the test box 10 drives the electrical connector 11 to move downward, the test box 10 drives the connecting cross plate 509 to move, the connecting cross plate 509 drives the connecting plate 502 to move downward, the connecting plate 502 drives the driving rack 501 to move downward, the driving rack 501 drives the driving gear 510 to rotate, the driving gear 510 drives the moving screw to rotate, and the moving screw drives the pushing block 511 to move in the limiting slot 512 During the movement, the pushing block 511 gradually comes into contact with the moving wheel 504 and drives the moving wheel 504 to move. The moving wheel 504 drives the power connection box 503 to move. The power connection box 503 drives the test pipe 508 to move and connects the test pipe 508 with the contact element of the low-noise amplifier. The test box 10 will drive the power connection head 11 to move downward and plug it into the power connection hole 505 to complete the electrical connection required for the test, thereby testing the low-noise amplifier and reflecting the test data results on the display table 2.

[0053] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A test device for a low noise amplifier, comprising a base box (1), characterized in that: The top of the base box (1) is connected to a support plate (3), the top of the support plate (3) is provided with a conversion clamping assembly (4), the bottom of the support plate (3) is provided with a drop buffer assembly (6) for buffering the low noise amplifier, a connecting bracket (12) is provided on one side of the base box (1), a test box (10) and an electrical connector (11) are provided at the bottom of the connecting bracket (12), and an automatic connecting assembly (5) is provided on one side of the connecting bracket (12); The conversion clamping assembly (4) comprises a plurality of fixed rings (404) distributed in a circumferential array, the top of the support plate (3) is rotatably connected to a rotating platform (401), the outer peripheral side of the rotating platform (401) is connected to a plurality of connecting posts (403) distributed in a circumferential array, the side of the connecting post (403) away from the rotating platform (401) is connected to the outer peripheral side of the fixed ring (404), and the outer peripheral side of the fixed ring (404) is connected to two symmetrically arranged mounting frames (41 1), a reciprocating screw (412) is rotatably connected to the inner side of the mounting frame (411), a screw seat (413) is threadedly connected to the outer surface of one end of the reciprocating screw (412) away from the mounting frame (411), and one end of the screw seat (413) away from the reciprocating screw (412) extends to the inner side of the fixing ring (404) and is connected to a clamping plate (405), and the clamping plate (405) is used to automatically clamp and limit the low noise amplifier in coordination with the movement of the screw seat (413).

2. A test device for a low noise amplifier according to claim 1, characterized in that: The outer surface of the fixed ring (404) is rotatably connected to a driving gear ring (406), and the top of the driving gear ring (406) is connected to a transmission gear ring (410). The end of the reciprocating screw (412) away from the screw seat (413) extends to the other side of the mounting frame (411) and is connected to a transmission gear (407). The transmission gear (407) is meshedly connected to the driving gear ring (406). The outer surface of the fixed ring (404) is provided with two symmetrically arranged sliding grooves, and the screw seat (413) is slidably connected in the sliding grooves. The cross-sectional shapes of the screw seat (413) and the sliding groove are both rectangular.

3. A test device for a low noise amplifier according to claim 2, characterized in that: A half gear ring (414) is connected to the top of the support plate (3), and the drive gear ring (406) can be meshed and connected with the half gear ring (414) during rotation. A drive motor (402) is fixedly installed inside the base box (1) via a mounting seat, and one end of the output shaft of the drive motor (402) is connected to a rotating shaft, and one end of the rotating shaft away from the drive motor (402) extends to the other side of the support plate (3) and is connected to the bottom of the rotating platform (401).

4. A test device for a low noise amplifier according to claim 2, characterized in that: The outer circumferential side of the fixing ring (404) is connected to a plurality of fixing blocks distributed in a circular array, the bottom of the fixing block is connected to a limiting block (408), the top of the driving gear ring (406) is provided with a plurality of limiting holes (409) distributed in a circular array, the limiting blocks (408) and the limiting holes (409) are mutually engaged, and the limiting blocks (408) are flexible plastic blocks.

5. A test device for a low noise amplifier according to claim 1, characterized in that: The drop material buffer assembly (6) comprises a drop material pipe (601), the top of the drop material pipe (601) is connected to the bottom of the support plate (3), one side of the support plate (3) is provided with a drop material groove (13), the drop material groove (13) and the axis of the drop material pipe (601) are located on the same axis, the bottom of the drop material pipe (601) is provided with a plurality of rotating grooves distributed in a circumferential array, a rotating plate (606) is rotatably connected in the rotating groove via a connecting shaft, and one side of the rotating plate (606) is connected with a useful A buffer plate (607) is provided to cushion the falling of the low noise amplifier. A second spring (603) is connected to the top of the rotating plate (606) away from the buffer plate (607). An end of the second spring (603) away from the rotating plate (606) is connected to a fixed plate (602). The fixed plate (602) is connected to the outer peripheral side of the drop tube (601). A collection box (7) is provided on one side of the base box (1). The collection box (7) is located directly below the drop tube (601).

6. A test device for a low noise amplifier according to claim 5, characterized in that: Limiting plates (605) are provided on both sides of the rotating plate (606), one side of the limiting plate (605) is connected to the outer peripheral side of the drop tube (601), and limiting rods (604) are connected to both sides of the rotating plate (606), and the outer peripheral side of the limiting rod (604) is in contact with the top of the limiting plate (605).

7. A test device for a low noise amplifier according to claim 1, characterized in that: The automatic connection assembly (5) comprises two symmetrically arranged limiting slot seats (512); the bottom of the connection bracket (12) is connected to a fixing platform (8); the fixing platform (8) is connected to the outer peripheral side of the base box (1); the bottom of the limiting slot seat (512) is connected to the top of the fixing platform (8); a pushing block (511) is slidably connected inside the limiting slot seat (512); two symmetrically arranged sliding holes are provided on the outer peripheral side of the fixing ring (404); a test pipe (508) is slidably connected inside the sliding hole; a side of the test pipe (508) away from the fixing ring (404) is connected to a power connection box (503); a side of the power connection box (503) away from the test pipe (508) is connected to a moving wheel (504); the pushing block (511) can drive the moving wheel (504) to move during the movement; and a power connection hole (505) for matching with the power connection head (11) is provided on the top of the power connection box (503).

8. A test device for a low noise amplifier according to claim 7, characterized in that: Two symmetrically arranged telescopic rods (507) are connected to one side of the power connection box (503) away from the moving wheel (504); one end of the telescopic rod (507) away from the power connection box (503) is connected to the outer peripheral side of the fixing ring (404); a first spring (506) is sleeved on the outer surface of the telescopic rod (507); and two ends of the first spring (506) are respectively connected to the fixing ring (404) and the power connection box (503).

9. A test device for a low noise amplifier according to claim 7, characterized in that: A movable lead screw is threadedly connected to the side of the pushing block (511) away from the base box (1), and a mounting piece is rotatably connected to the outer surface of one end of the movable lead screw. The bottom of the mounting frame (411) is connected to the top of the fixed platform (8), and the end of the movable lead screw away from the pushing block (511) is connected to a driving gear (510). One side of the driving gear (510) is meshedly connected to a driving rack (501). A symmetrically arranged through groove is opened on the top of the fixed platform (8), and the driving rack (501) is slidably connected in the through groove. The tops of the two driving racks (501) are connected to the same connecting plate (502). The side of the connecting plate (502) away from the connecting bracket (12) is connected to two connecting cross plates (509), and the side of the connecting cross plate (509) away from the connecting plate (502) is connected to one side of the test box (10).

10. A test device for a low noise amplifier according to claim 1, characterized in that: A movable cylinder (9) is installed on the top of the connecting bracket (12), and the output end of the movable cylinder (9) extends to the bottom of the connecting bracket (12) and is connected to the top of the test box (10). The side of the base box (1) away from the fixed platform (8) is connected to the display platform (2).

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