Network filter test fixture

Abstract

The utility model relates to the technical field of filter detection, and discloses a network filter test fixture which comprises a conveying plate, a fixed base is arranged on the inner wall of the conveying plate, a sliding plate is slidably connected to the inner wall of the fixed base, a fixed block is fixedly connected to the inner wall of the fixed base, and a sliding block is fixedly connected to the lower surface of the sliding plate. The outer wall of the sliding block is slidably connected to the interior of the fixed block, the lower surface of the sliding block is rotatably connected with a first rotating plate, a sliding groove is formed in the fixed block, one end of the first rotating plate is slidably connected to the interior of the sliding groove, the lower surface of the sliding block is fixedly connected with a telescopic rod, and the outer wall of the telescopic rod is sleeved with a first spring. According to the utility model, the problems that the network filter is easily influenced by external force during detection, moves, shifts and even falls off, and the accuracy of a test result is influenced are solved, and the filter is ensured to maintain a correct position and a correct direction in a test process, so that the stability and the accuracy of a test signal are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filter detection, in particular to a network filter testing fixture. Background Art

[0002] A network filter is an electronic component that allows signals to pass through within a specific frequency range while blocking signals of other frequencies. This filter is widely used in fields such as communications, data transmission, and power management. In order to ensure that the performance of the filter meets the design requirements, it is necessary to use a network filter test fixture for testing. The test fixture can provide a stable and adjustable test signal and measure the performance indicators of the filter such as insertion loss, bandwidth, transmission delay, and standing wave ratio. By using a test fixture, the quality and reliability of the filter can be ensured and the performance of the product can be improved.

[0003] When using a traditional network filter test fixture, first connect the signal source to the network analyzer, then connect the network analyzer to the input of the filter to be tested, and connect the matched load to the output of the filter. After setting the test parameters on the network analyzer, start the test and measure the frequency response of the filter, and analyze the results to evaluate the performance of the filter. Based on the test data, the filter design or parameters can be adjusted to meet the performance standards. Repeat the test to ensure that the filter achieves the expected performance after modification.

[0004] When the test fixture is in use, in order to ensure the accuracy of the test, the input and output ports of the filter need to be aligned with the precise position of the test equipment. Then the traditional fixture simply places the network filter directly on the placement board. This setting is easily affected by external forces, causing movement offset or even falling, resulting in poor contact between the test signal and the filter, affecting the accuracy of the test results. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a network filter test fixture, which aims to improve the problem that the network filter is easily affected by external forces during detection, causing movement deviation or even falling, resulting in poor contact between the test signal and the filter, affecting the accuracy of the test results.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a network filter test fixture comprises a conveying plate, the inner wall of the conveying plate is provided with a fixed base, the inner wall of the fixed base is slidably connected with a slide plate, the inner wall of the fixed base is fixedly connected with a fixed block, the lower surface of the slide plate is fixedly connected with a sliding block, the outer wall of the sliding block is slidably connected to the inside of the fixed block, the lower surface of the sliding block is rotatably connected with a rotating plate 1, a sliding groove is provided inside the fixed block, one end of the rotating plate 1 is slidably connected to the inside of the sliding groove, the lower surface of the sliding block is fixedly connected with a telescopic rod, the outer wall of the telescopic rod is sleeved with a spring 1, and the spring 1 is rotatably connected to the inside of the fixed block. The cam is fixedly connected to the lower surface of the sliding block, and the other end of the spring is fixedly connected to the inner wall of the fixed block. The outer wall of the sliding block is fixedly connected with a connecting plate, and the outer wall of the connecting plate is slidably connected with a rotating plate 2. The outer wall of the rotating plate 2 is rotatably connected to the inside of the fixed base, and one end of the rotating plate 2 is slidably connected to a sliding column, and a downward pressing component is arranged inside the sliding column, and the downward pressing component is used to limit the downward pressure of the network filter. The lower surface of the sliding column is fixedly connected with a sliding rod, and the outer wall of the sliding rod is provided with a spring 2, one end of the spring 2 is fixedly connected to the lower surface of the sliding column, and the other end of the spring 2 is fixedly connected to the inside of the fixed base.

[0007] Furthermore, the pressing assembly comprises a connecting rod, one end of which is rotatably connected to the inside of the sliding column, the middle part of which is rotatably connected to the inside of the fixed base, and the other end of which is fixedly connected to a pressing block.

[0008] Furthermore, a workbench is fixedly connected to the lower surface of the conveying plate, a motor is fixedly connected inside the workbench, and a worm is fixedly connected to the output end of the motor.

[0009] Furthermore, a worm wheel is rotatably connected inside the workbench, and the worm is meshed with the worm wheel.

[0010] Furthermore, a gear is fixedly connected to the lower surface of the worm wheel, a rack is slidably connected inside the workbench, and the gear is meshed with the rack.

[0011] Furthermore, a connecting block is fixedly connected to the outer wall of the rack, and the outer wall of the connecting block is slidably connected to the inside of the workbench.

[0012] Furthermore, a sliding seat is fixedly connected to the upper surface of the connecting block, and a detection head is fixedly connected to the outer wall of the sliding seat.

[0013] Furthermore, a guide plate is fixedly connected to the lower surface of the sliding seat, and an outer wall of the guide plate is slidably connected to the inside of the workbench.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, the network filter is first placed on the slide plate and pressed down, and then the fixed block, sliding block, connecting plate, rotating plate 2, sliding column and connecting rod drive the pressing block to press down and fix the network filter, and then the rotating plate 1, telescopic rod, spring 1 and slide groove are used to quickly pop out the network filter after the test, which solves the problem that the network filter is easily affected by external forces during detection, resulting in movement deviation or even falling, affecting the accuracy of the test results, and ensures that the filter maintains the correct position and direction during the test, thereby improving the stability and accuracy of the test signal.

[0016] 2. In the utility model, the motor is first started to drive the worm to rotate, and then the worm wheel, gear, rack and connecting block are coordinated to drive the sliding seat and the detection head to move, so that multiple network filters can be detected at the same time, achieving fast and stable detection, improving production efficiency and ensuring product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional structural diagram of the network filter test fixture proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the fixed base of the network filter test fixture proposed by the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the fixed block of the network filter test fixture proposed by the utility model;

[0020] Figure 4 This is a schematic diagram of the sliding column structure of the network filter test fixture proposed by the utility model;

[0021] Figure 5 This is a schematic diagram of the internal structure of the workbench of the network filter test fixture proposed by the utility model;

[0022] Figure 6 This is a schematic diagram of the gear structure of the network filter test fixture proposed by the utility model.

[0023] Legend:

[0024] 1. Conveying plate; 2. Fixed base; 3. Slide plate; 4. Fixed block; 5. Sliding block; 6. Rotating plate 1; 7. Telescopic rod; 8. Spring 1; 9. Slide groove; 10. Connecting plate; 11. Rotating plate 2; 12. Sliding rod; 13. Spring 2; 14. Sliding column; 15. Connecting rod; 16. Pressing block; 17. Workbench; 18. Motor; 19. Worm; 20. Worm wheel; 21. Gear; 22. Rack; 23. Connecting block; 24. Sliding seat; 25. Detection head; 26. Guide plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Reference Figure 1 - Figure 4 The utility model provides an embodiment of a network filter test fixture, including a conveying plate 1, a fixed base 2 is arranged on the inner wall of the conveying plate 1, a slide plate 3 is slidably connected to the inner wall of the fixed base 2, a fixed block 4 is fixedly connected to the inner wall of the fixed base 2, a sliding block 5 is fixedly connected to the lower surface of the slide plate 3, the outer wall of the sliding block 5 is slidably connected to the inside of the fixed block 4, a rotating plate 6 is rotatably connected to the lower surface of the sliding block 5, a sliding groove 9 is provided inside the fixed block 4, one end of the rotating plate 6 is slidably connected to the inside of the sliding groove 9, a telescopic rod 7 is fixedly connected to the lower surface of the sliding block 5, a spring 8 is sleeved on the outer wall of the telescopic rod 7, one end of the spring 8 is fixedly connected to the lower surface of the sliding block 5, the other end of the spring 8 is fixedly connected to the inner wall of the fixed block 4, and the outer wall of the sliding block 5 is fixed A connecting plate 10 is fixedly connected, and a rotating plate 11 is slidably connected to the outer wall of the connecting plate 10. The outer wall of the rotating plate 11 is rotatably connected to the inside of the fixed base 2. One end of the rotating plate 11 is slidably connected to a sliding column 14. A pressing component is arranged inside the sliding column 14. The pressing component is used to limit the downward pressure of the network filter. A sliding rod 12 is fixedly connected to the lower surface of the sliding column 14. A spring 13 is sleeved on the outer wall of the sliding rod 12. One end of the spring 13 is fixedly connected to the lower surface of the sliding column 14. The other end of the spring 13 is fixedly connected to the inside of the fixed base 2. The pressing component includes a connecting rod 15. One end of the connecting rod 15 is rotatably connected to the inside of the sliding column 14. The middle part of the connecting rod 15 is rotatably connected to the inside of the fixed base 2. The other end of the connecting rod 15 is fixedly connected to a pressing block 16.

[0027] Specifically, firstly, the network filter is placed on the top of the slide plate 3, and pressed downward to drive the slide plate 3 to slide on the inner wall of the fixed base 2, thereby driving the sliding block 5 to slide on the inner wall of the fixed block 4, and then driving the rotating plate 6 to slide inside the slide groove 9, and at the same time, the spring 8 is contracted. In this process, due to the inclination of the top angle of the slide groove 9, the rotating plate 6 first slides on the right slide, and through the arc-shaped slide at the bottom of the slide groove 9, the rotating plate 6 is stuck in the depression at the bottom of the slide groove 9 for fixing. At the same time, the movement of the rotating plate 6 drives the connecting plate 10 to move downward, thereby pushing one end of the rotating plate 2 11, so that the rotating plate 2 11 rotates inside the fixed base 2, and then through the other end of the rotating plate 2 11 While pushing the sliding column 14 to move upward, the spring 2 13 is stretched. When the sliding column 14 moves upward, the sliding shaft inside the sliding column 14 will slide in the slideway inside the connecting rod 15, thereby driving the connecting rod 15 to rotate inside the sliding rod 12, and then one end of the connecting rod 15 moves downward, and drives the pressing block 16 to press down and fix the network filter, thereby achieving fixation. Then, the network filter is pressed again to make the rotating plate 16 slide on the left slideway of the sliding groove 9, and the spring 1 8 and the spring 2 13 are no longer subjected to force and rebound, thereby driving the pressing block 16 and the sliding plate 3 to return to their original positions, so that the network filter is no longer restricted and pops up upward, thereby achieving the effect of fixing and releasing the network filter.

[0028] Reference Figure 1 , Figure 5 and Figure 6 A workbench 17 is fixedly connected to the lower surface of the conveying plate 1, a motor 18 is fixedly connected inside the workbench 17, a worm 19 is fixedly connected to the output end of the motor 18, a worm wheel 20 is rotatably connected inside the workbench 17, the worm 19 is meshed with the worm wheel 20, a gear 21 is fixedly connected to the lower surface of the worm wheel 20, a rack 22 is slidably connected inside the workbench 17, the gear 21 is meshed with the rack 22, a connecting block 23 is fixedly connected to the outer wall of the rack 22, the outer wall of the connecting block 23 is slidably connected to the inside of the workbench 17, a sliding seat 24 is fixedly connected to the upper surface of the connecting block 23, a detection head 25 is fixedly connected to the outer wall of the sliding seat 24, a guide plate 26 is fixedly connected to the lower surface of the sliding seat 24, and the outer wall of the guide plate 26 is slidably connected to the inside of the workbench 17;

[0029] Specifically, when the network filter is fixed, the starting motor 18 drives the worm 19 to rotate. Due to the meshing of the worm 19 and the worm wheel 20, the worm wheel 20 drives the gear 21 to rotate along with the rotation of the worm 19. Then, through the meshing of the rack 22 and the gear 21, the racks 22 on both sides rotate in the opposite direction along with the rotation of the gear 21, thereby driving the sliding seats 24 on both sides to slide relative to each other on the upper surface of the workbench 17 through the connecting block 23. At the same time, the measuring needle on the detection head 25 is driven by the guidance of the guide plate 26 to insert into the interior of the network filter for detection.

[0030] Working principle: When the network filter test fixture is needed, first place the network filter on the slide plate 3, and press it to drive the slide plate 3 to slide in the fixed base 2, drive the sliding block 5 and the rotating plate 1 6 to move, so that the rotating plate 1 6 slides and is fixed in the slide groove 9, and the spring 1 8 contracts, and the sliding block 5 drives the connecting plate 10 to move, thereby pushing the rotating plate 2 11 to move upward, and then drives the connecting rod 15 to rotate so that the pressing block 16 presses down and fixes the network filter, and at the same time, the spring 2 13 contracts. When pressed again, the network filter can be released and popped up, completing the fixation and release;

[0031] In addition, the starting motor 18 drives the worm 19, the worm wheel 20 drives the gear 21 to rotate, the rack 22 engages with the gear 21, and the two racks 22 move in opposite directions, and the sliding seat 24 is driven to slide relatively on the upper surface of the workbench 17 through the connecting block 23, and the guide plate 26 guides the probe on the detection head 25 to insert into the network filter for detection.

[0032] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A network filter test fixture, comprising a conveyor plate (1), characterized in that: The inner wall of the conveying plate (1) is provided with a fixed base (2), the inner wall of the fixed base (2) is slidably connected with a slide plate (3), the inner wall of the fixed base (2) is fixedly connected with a fixed block (4), the lower surface of the slide plate (3) is fixedly connected with a sliding block (5), the outer wall of the sliding block (5) is slidably connected to the inside of the fixed block (4), the lower surface of the sliding block (5) is rotatably connected with a rotating plate (6), a sliding groove (9) is provided inside the fixed block (4), one end of the rotating plate (6) is slidably connected to the inside of the sliding groove (9), the lower surface of the sliding block (5) is fixedly connected with a telescopic rod (7), the outer wall of the telescopic rod (7) is sleeved with a spring (8), one end of the spring (8) is fixedly connected to the lower surface of the sliding block (5), and the spring (8) is ) and the other end is fixedly connected to the inner wall of the fixed block (4); the outer wall of the sliding block (5) is fixedly connected to a connecting plate (10); the outer wall of the connecting plate (10) is slidably connected to a rotating plate (11); the outer wall of the rotating plate (11) is rotatably connected to the inside of the fixed base (2); one end of the rotating plate (11) is slidably connected to a sliding column (14); a downward pressing component is arranged inside the sliding column (14); the downward pressing component is used to limit the downward pressing of the network filter; the lower surface of the sliding column (14) is fixedly connected to a sliding rod (12); the outer wall of the sliding rod (12) is sleeved with a spring (13); one end of the spring (13) is fixedly connected to the lower surface of the sliding column (14); the other end of the spring (13) is fixedly connected to the inside of the fixed base (2).

2. The network filter test fixture according to claim 1, characterized in that: The pressing assembly comprises a connecting rod (15), one end of the connecting rod (15) is rotatably connected to the inside of the sliding column (14), the middle part of the connecting rod (15) is rotatably connected to the inside of the fixed base (2), and the other end of the connecting rod (15) is fixedly connected to a pressing block (16).

3. The network filter test fixture according to claim 1, characterized in that: A workbench (17) is fixedly connected to the lower surface of the conveying plate (1), a motor (18) is fixedly connected inside the workbench (17), and a worm (19) is fixedly connected to the output end of the motor (18).

4. The network filter test fixture according to claim 3, characterized in that: A worm wheel (20) is rotatably connected inside the workbench (17), and the worm (19) is meshed with the worm wheel (20).

5. The network filter test fixture according to claim 4, characterized in that: A gear (21) is fixedly connected to the lower surface of the worm wheel (20), a rack (22) is slidably connected inside the workbench (17), and the gear (21) is meshed with the rack (22).

6. The network filter test fixture according to claim 5, characterized in that: The outer wall of the rack (22) is fixedly connected to a connecting block (23), and the outer wall of the connecting block (23) is slidably connected to the inside of the workbench (17).

7. The network filter test fixture according to claim 6, characterized in that: The upper surface of the connection block (23) is fixedly connected to a sliding seat (24), and the outer wall of the sliding seat (24) is fixedly connected to a detection head (25).

8. The network filter test fixture according to claim 7, characterized in that: A guide plate (26) is fixedly connected to the lower surface of the sliding seat (24), and the outer wall of the guide plate (26) is slidably connected to the inside of the workbench (17).

Images