Pin butt joint test fixture for core board of unmanned aerial vehicle

Abstract

The utility model relates to the technical field of pin butt joint test jigs, and discloses an unmanned aerial vehicle core board pin butt joint test jig, which comprises a fixed base, a lower test seat and an upper test seat, a lower connecting plate is fixed at the top of the fixed base through bolts, and a rubber pad is connected to the top surface of an adhesive layer. The guide blocks are fixed to the two sides of the movable plate, the hydraulic telescopic rod correspondingly stretches out and draws back after the hydraulic cylinder works, the guide blocks move along the guide rods at the moment, corresponding movement guiding work is achieved, meanwhile, the positioning cylinders are fixed to the two sides of the top of the lower connecting plate, and the positioning cylinders are fixed to the two sides of the top of the lower connecting plate. And second positioning rods are fixed to the two sides of the bottom of the upper connecting plate, so that in the moving process of the moving plate, the first positioning rods and the second positioning rods can reach a positioning cavity area in a positioning barrel for positioning after descending, a rubber pad and a sponge pad are matched to form anti-collision protection, and meanwhile the abrasion problem caused by collision is solved.

Description

Technical Field

[0001] This utility model relates to the field of pin docking test fixture technology, specifically a pin docking test fixture for a UAV core board. Background Technology

[0002] A drone is an aircraft that does not require a pilot to board and is controlled remotely or autonomously. Drones achieve flight control through radio remote control equipment or built-in programs. It mainly consists of a fuselage, power system, control system and payload system. The drone core board is a high-performance hardware platform that integrates the main control processor, communication module and interface circuit. As the control center of the drone, it is responsible for core functions such as flight control, data processing and environmental perception.

[0003] The core board of a drone, through the high integration of hardware and algorithms, has become the technological cornerstone for the intelligent and scenario-based applications of drones. It is usually equipped with corresponding pins, which usually refer to the metal contacts on the connector or interface. Pin mating refers to the process of connecting the pins of an electronic device to the corresponding pins on another device or circuit board. This process is very important in the assembly, maintenance and upgrade of electronic devices to ensure that the various parts of the device can communicate and function normally. Therefore, in order to test the fixation and durability of connector pins, pin mating tests are required, which requires the use of mating test fixtures. During the use, different degrees of force are usually applied to simulate various stress conditions that may occur in actual use, in order to evaluate the durability of the pins. This process requires the application of external force in the vertical process, so if the guidance is not good during the movement, it can directly affect the test results. Utility Model Content

[0004] The purpose of this utility model is to provide a test fixture for the pin docking of a UAV core board, in order to solve the problem in the background art that the application of different degrees of force to simulate various stress conditions that may occur in actual use in order to evaluate the durability of the pins. This process requires the application of external force in the vertical process, and if the guidance is not good during the movement, it can directly affect the test results.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a test fixture for pin docking of a UAV core board, comprising a fixed base, a lower test seat, and an upper test seat. A lower connecting plate is fixed to the top of the fixed base with bolts. The lower test seat is assembled at the top of the lower connecting plate. A lower pin cylinder is installed on the top of the lower test seat. An upper pin cylinder is installed at the bottom of the upper test seat. An insulating pad is fixed in both the lower and upper pin cylinders. Positioning cylinders are fixed on both sides of the top of the lower connecting plate. Second positioning rods are provided on both sides of the upper test seat. A first positioning rod is fixed to the bottom of the second positioning rod. A sponge pad is fixed to the bottom of the first positioning rod. A positioning cavity is formed in the positioning cylinder. An adhesive layer is formed on the bottom surface of the positioning cavity. A rubber pad is connected to the top surface of the adhesive layer.

[0006] As a further technical solution of this utility model, one side of the adhesive layer is bonded to the bottom surface of the positioning cylinder, and the other side of the adhesive layer is bonded to the bottom surface of the rubber pad.

[0007] As a further technical solution of this utility model, the positioning cylinders are symmetrically distributed about the central axis of the lower connecting plate, and the diameter of the first positioning rod is smaller than the diameter of the second positioning rod.

[0008] As a further technical solution of this utility model, the diameter of the first positioning rod is smaller than the diameter of the inside of the positioning cavity, and the diameter of the second positioning rod is smaller than the diameter of the inside of the positioning cavity.

[0009] As a further technical solution of this utility model, the lower needle tubes are evenly distributed on the top of the lower test base, and the upper needle tubes are evenly distributed on the bottom of the upper test base.

[0010] As a further technical solution of this utility model, guide rods are fixed on both sides of the top of the fixed base, a top plate is fixed on the top of the guide rods, a hydraulic cylinder is installed on the top of the top plate, a hydraulic telescopic rod is connected to the lower part of the top plate, and a movable plate is connected to the telescopic end of the hydraulic telescopic rod.

[0011] As a further technical solution of this utility model, the bottom of the movable plate is fixed with an upper connecting plate by bolts, and the upper test seat is assembled at the bottom position of the upper connecting plate.

[0012] As a further technical solution of this utility model, guide blocks are fixed on both sides of the movable plate, and circular grooves are formed in the guide blocks. An embedded groove is opened in the circular groove, and a ball is embedded in the embedded groove. A buffer spring is wound around the outside of the guide rod. The upper part of the buffer spring is connected to the bottom of the guide block, and the lower part of the buffer spring is connected to the top of the fixed base.

[0013] Compared with the prior art, the beneficial effects of this utility model are: this kind of UAV core board pin docking test fixture not only improves the guiding ability, but also improves the movement pressure relief ability and protection ability of the docking test fixture.

[0014] (1) By fixing guide blocks on both sides of the moving plate, the hydraulic telescopic rod extends and retracts accordingly after the hydraulic cylinder works. At this time, the guide block moves along the guide rod, thus playing a corresponding moving guide role. Meanwhile, positioning cylinders are fixed on both sides of the top of the lower connecting plate, and second positioning rods are fixed on both sides of the bottom of the upper connecting plate. Therefore, during the movement of the moving plate, the first positioning rod and the second positioning rod can be positioned in the positioning cavity area of ​​the positioning cylinder after descending. In addition, the rubber pad and the sponge pad work together to form anti-collision protection, thereby improving the overall positioning ability and reducing the wear problem caused by impact.

[0015] (2) By winding a buffer spring around the outside of the guide rod, the upper part of the buffer spring is connected to the bottom of the guide block, and the lower part of the buffer spring is connected to the top of the fixed base. Therefore, as the guide block moves along the guide rod, the buffer spring forms corresponding compression and tension, thereby playing a corresponding pressure relief treatment during movement and improving the pressure relief capability during movement.

[0016] (3) By evenly arranging the lower needle tubes on the top of the lower test base and evenly arranging the upper needle tubes on the bottom of the upper test base, and arranging insulating pads in both the lower and upper needle tubes, the insulating protection is achieved. At the same time, a circular groove is opened in the guide block, and an embedded groove is opened that communicates with the circular groove. The ball is embedded in the embedded groove. Therefore, during the movement of the guide block, the interplay between the embedded groove and the ball forms rolling protection, thereby improving the overall protection capability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a partial top view of the lower test seat of this utility model;

[0019] Figure 3 This is a front view cross-sectional structural diagram of the positioning cylinder of this utility model;

[0020] Figure 4 This is a top view cross-sectional structural diagram of the guide block of this utility model.

[0021] In the diagram: 1. Fixed base; 2. Lower connecting plate; 3. Lower test seat; 4. Lower needle tube; 5. Positioning cylinder; 6. Guide rod; 7. Buffer spring; 8. Guide block; 9. Top plate; 10. Hydraulic cylinder; 11. Hydraulic telescopic rod; 12. Moving plate; 13. Upper connecting plate; 14. Upper test seat; 15. Upper needle tube; 16. Insulating pad; 17. Adhesive layer; 18. Rubber pad; 19. Sponge pad; 20. First positioning rod; 21. Second positioning rod; 22. Positioning cavity; 23. Circular groove; 24. Embedded groove; 25. Ball bearing. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides an embodiment of a test fixture for the pin docking of a UAV core board, comprising a fixed base 1, a lower test seat 3, and an upper test seat 14. A lower connecting plate 2 is fixed to the top of the fixed base 1 by bolts. The lower test seat 3 is assembled at the top of the lower connecting plate 2. A lower pin cylinder 4 is installed on the top of the lower test seat 3. An upper pin cylinder 15 is installed at the bottom of the upper test seat 14. An insulating pad 16 is fixed in both the lower pin cylinder 4 and the upper pin cylinder 15. Positioning cylinders 5 are fixed on both sides of the top of the lower connecting plate 2. Second positioning rods 21 are provided on both sides of the upper test seat 14. A first positioning rod 20 is fixed to the bottom of the second positioning rod 21. A sponge pad 19 is fixed to the bottom of the first positioning rod 20. A positioning cavity 22 is formed in the positioning cylinder 5. An adhesive layer 17 is formed on the bottom surface of the positioning cavity 22. A rubber pad 18 is connected to the top surface of the adhesive layer 17.

[0024] One side of the adhesive layer 17 is bonded to the bottom surface inside the positioning cylinder 5, and the other side of the adhesive layer 17 is bonded to the bottom surface of the rubber pad 18.

[0025] The positioning cylinders 5 are symmetrically distributed about the central axis of the lower connecting plate 2, and the diameter of the first positioning rod 20 is smaller than the diameter of the second positioning rod 21.

[0026] The diameter of the first positioning rod 20 is smaller than the diameter of the inside of the positioning cavity 22, and the diameter of the second positioning rod 21 is smaller than the diameter of the inside of the positioning cavity 22.

[0027] The lower needle tubes 4 are evenly distributed on the top of the lower test base 3, and the upper needle tubes 15 are evenly distributed on the bottom of the upper test base 14.

[0028] Guide rods 6 are fixed on both sides of the top of the fixed base 1. A top plate 9 is fixed on the top of the guide rods 6. A hydraulic cylinder 10 is installed on the top of the top plate 9. A hydraulic telescopic rod 11 is connected to the lower part of the top plate 9. A movable plate 12 is connected to the telescopic end of the hydraulic telescopic rod 11.

[0029] The bottom of the movable plate 12 is fixed with an upper connecting plate 13 by bolts, and the upper test seat 14 is assembled at the bottom of the upper connecting plate 13.

[0030] Guide blocks 8 are fixed on both sides of the movable plate 12. A circular groove 23 is formed in the guide block 8. An embedded groove 24 is opened in the circular groove 23. A ball 25 is embedded in the embedded groove 24. A buffer spring 7 is wound around the outside of the guide rod 6. The upper part of the buffer spring 7 is connected to the bottom of the guide block 8, and the lower part of the buffer spring 7 is connected to the top of the fixed base 1.

[0031] Furthermore, the diameter of the first positioning rod 20 is smaller than that of the second positioning rod 21. Both the first positioning rod 20 and the second positioning rod 21 can be accommodated in the positioning cavity 22. The first positioning rod 20 is smaller and is located at the bottom. Therefore, the smaller size of the first positioning rod 20 makes it easier for the first positioning rod 20 and the second positioning rod 21 to be fully inserted into the positioning cavity 22.

[0032] Furthermore, by combining with existing technologies, a corresponding pressure sensor can be equipped on one or more insulating pads 16 to obtain pressure information, or pressure sensors can be omitted and pressure information can be obtained directly by combining existing technologies with hydraulic cylinder 10, hydraulic telescopic rod 11 and pressure system.

[0033] Working principle: First, a buffer spring 7 is wound around the outside of the guide rod 6 during operation. The upper part of the buffer spring 7 is connected to the bottom of the guide block 8, and the lower part of the buffer spring 7 is connected to the top of the fixed base 1. The connection and assembly of the lower connecting plate 2 and the upper connecting plate 13 are completed in sequence. Then, the needle is located between the lower needle tube 4 and the upper needle tube 15. After the hydraulic cylinder 10 is started, the hydraulic telescopic rod 11 extends and retracts accordingly. At this time, the guide block 8 moves along the guide rod 6. At the same time, the positioning cylinder 5 is fixed on both sides of the top of the lower connecting plate 2, and the second positioning rod 21 is fixed on both sides of the bottom of the upper connecting plate 13. Therefore, during the movement of the moving plate 12, the first positioning rod 20 and the second positioning rod 21 can reach the positioning cavity 22 area in the positioning cylinder 5 for positioning after descent. The rubber pad 18 and the sponge pad 19 cooperate to form anti-collision protection. After the upper test seat 14 moves, pressure is applied to the needle and the pressure data is recorded.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. An unmanned aerial vehicle core board pin butt joint test fixture, comprising a fixed base (1), a lower test seat (3) and an upper test seat (14), characterized in that: The top of the fixed base (1) is fixed with a lower connecting plate (2) by bolts. The lower test base (3) is assembled at the top of the lower connecting plate (2). The top of the lower test base (3) is equipped with a lower needle tube (4). The bottom of the upper test base (14) is equipped with an upper needle tube (15). Both the lower needle tube (4) and the upper needle tube (15) are fixed with insulating pads (16). The top two sides of the lower connecting plate (2) are fixed with positioning cylinders (5). The two sides of the upper test base (14) are provided with second positioning rods (21). The bottom of the second positioning rod (21) is fixed with a first positioning rod (20). The bottom of the first positioning rod (20) is fixed with a sponge pad (19). The positioning cylinder (5) forms a positioning cavity (22). The bottom surface of the positioning cavity (22) is formed with an adhesive layer (17). The top surface of the adhesive layer (17) is connected with a rubber pad (18). 2.The pin joint test fixture for a core board of a UAV according to claim 1, wherein: One side of the adhesive layer (17) is bonded to the bottom surface inside the positioning cylinder (5), and the other side of the adhesive layer (17) is bonded to the bottom surface of the rubber pad (18). 3.The pin joint test fixture for a core board of a UAV according to claim 1, wherein: The positioning cylinder (5) is symmetrically distributed about the central axis of the lower connecting plate (2), and the diameter of the first positioning rod (20) is smaller than the diameter of the second positioning rod (21).

4. The drone core board pin butt joint test fixture according to claim 1, characterized in that: The diameter of the first positioning rod (20) is smaller than the diameter of the inside of the positioning cavity (22), and the diameter of the second positioning rod (21) is smaller than the diameter of the inside of the positioning cavity (22).

5. The pin interface test fixture for a drone core board according to claim 1, wherein: The lower needle tubes (4) are evenly distributed on the top of the lower test base (3), and the upper needle tubes (15) are evenly distributed on the bottom of the upper test base (14).

6. The drone core board pin butt joint test fixture according to claim 1, characterized in that: Guide rods (6) are fixed on both sides of the top of the fixed base (1). A top plate (9) is fixed on the top of the guide rods (6). A hydraulic cylinder (10) is installed on the top of the top plate (9). A hydraulic telescopic rod (11) is connected to the lower part of the top plate (9). A movable plate (12) is connected to the telescopic end of the hydraulic telescopic rod (11).

7. The drone core board pin butt joint test fixture according to claim 6, characterized in that: The bottom of the movable plate (12) is fixed with an upper connecting plate (13) by bolts, and the upper test seat (14) is assembled at the bottom of the upper connecting plate (13).

8. The drone core board pin butt joint test fixture according to claim 6, characterized in that: Guide blocks (8) are fixed on both sides of the movable plate (12). A circular groove (23) is formed in the guide block (8). A slot (24) is opened in the circular groove (23). A ball (25) is embedded in the slot (24). A buffer spring (7) is wound around the outside of the guide rod (6). The top of the buffer spring (7) is connected to the bottom of the guide block (8), and the bottom of the buffer spring (7) is connected to the top of the fixed base (1).

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