A screw leak detection jig for product assembly

Abstract

The utility model discloses a product assembles and uses screw leak detection fixture belongs to screw leak detection fixture technical field, the utility model discloses a detection platform and fixed component, and the top of detection platform is equipped with four clamping blocks, and fixed component includes stand and L shaped board, and the stand is equipped with two, and two stand are installed in the top of clamping block, and the between two stand is equipped with cylinder rod, and the outside of cylinder rod is equipped with torsional spring, the utility model discloses four clamping blocks of detection platform top, has realized the primary positioning and spacing of product in horizontal direction, then through the effect of torsional spring realizes L shaped board down pressure, through the effect of spring simultaneously, makes the compression plate to detection piece and carry out the pressure tight, can add the perpendicular direction's, flexible pressure tight force from product top when detecting, effectively prevented the displacement and warping that product produced in the detection process because of probe contact or equipment vibration, provided solid foundation for reliable contact of detection probe and accurate imaging of photographic detection head, fundamentally reduced the misjudgment and the rate of missing detection.

Description

Technical Field

[0001] This utility model relates to the technical field of screw leak detection fixtures, specifically a screw leak detection fixture for product assembly. Background Technology

[0002] In modern industrial manufacturing, especially in the assembly of consumer electronics, home appliances, and automotive parts, screw connections are widely used due to their reliability and ease of disassembly. To ensure product quality and safety, production lines typically include an inspection process after assembly to check for leaks in the screws on the product's outer casing or internal structure. This confirms that all screws in their designated positions are correctly installed, without any missing, loose, or stripped screws. Therefore, screw leak detection fixtures are used for this inspection.

[0003] Conventional fixtures typically hold products only at the bottom. When the detection probe presses down or the fixture itself moves, the product is prone to slight shaking or tilting, leading to poor contact between the probe and the screw, or causing the image captured by the camera to shift, resulting in false alarms or missed detections. Therefore, a screw leak detection fixture for product assembly is proposed to overcome the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a screw leak detection fixture for product assembly, so as to solve the problems mentioned in the background art.

[0005] This utility model is achieved through the following technical solution:

[0006] This utility model is a screw leak detection fixture for product assembly, including a testing platform and a fixing component. The top of the testing platform is provided with four clamping blocks. The fixing component includes a vertical plate and an L-shaped plate. There are two vertical plates, which are installed on the top of the clamping blocks. A cylindrical rod is provided between the two vertical plates, and a torsion spring is sleeved on the outside of the cylindrical rod. A rotating shaft is provided on both sides of the L-shaped plate, and the rotating shaft is fitted on the vertical plate. A through hole is opened at the top of one end of the L-shaped plate. A U-shaped frame is provided at the top of the through hole. A stepped rod is fitted on the U-shaped frame. A pressure plate is provided at the bottom of the stepped rod, and a spring is sleeved on the outside of the stepped rod.

[0007] Furthermore, the top of the testing platform is equipped with four testing probes, a photographic testing head, and a testing component is placed on top of the testing platform. The screw installation positions on the testing component correspond to the testing probes and the photographic testing head.

[0008] Furthermore, L-shaped frames are provided on both sides of the top of the testing platform, and electric push rods are provided on the top of the L-shaped frames. Rectangular frames are provided at the output ends of the two electric push rods, and the rectangular frames are located above the L-shaped plates.

[0009] Furthermore, a rotating hole is provided on the vertical plate, and the rotating shaft fits into the rotating hole.

[0010] Furthermore, the U-shaped frame has sliding holes, and the stepped rod fits inside the sliding holes.

[0011] Furthermore, the spring is located between the pressure plate and the U-shaped frame, with one end of the spring connected to the U-shaped frame and the other end connected to the pressure plate.

[0012] Furthermore, one end of the L-shaped plate is designed as a sloping structure.

[0013] This utility model has the following beneficial effects:

[0014] 1. This utility model achieves initial horizontal positioning and limiting of the product through four clamping blocks on the top of the testing platform. Then, the L-shaped plate is pressed down by the action of the torsion spring, and the pressure plate is pressed against the test piece by the action of the spring. It can apply a vertical and flexible clamping force from above the product during testing, which can effectively prevent the product from displacement and warping caused by probe contact or equipment vibration during the testing process. This provides a solid foundation for reliable contact of the test probe and accurate imaging of the photographic test head, fundamentally reducing the false judgment and missed detection rate.

[0015] 2. This utility model uses an electric actuator to drive a rectangular frame, thereby controlling the lifting and pressing of the L-shaped plate, realizing automated operation of product clamping, achieving rapid clamping and release, greatly shortening the inspection time of a single product, and meeting the needs of high-efficiency automated production.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] Figure 1 A schematic diagram of the screw leak detection fixture and testing components;

[0018] Figure 2 This is a schematic diagram of the screw leak detection fixture.

[0019] Figure 3 This is a schematic diagram of the electric actuator and the rectangular frame structure.

[0020] Figure 4 This is a schematic diagram of the fixed component structure.

[0021] In the diagram: 1. Inspection table; 101. Inspection probe; 102. Photograph inspection head; 2. Clamping block; 3. Fixing assembly; 301. Vertical plate; 302. Cylindrical rod; 303. Rotary hole; 304. Torsion spring; 305. L-shaped plate; 306. Rotating shaft; 307. Through hole; 308. U-shaped frame; 309. Sliding hole; 3010. Stepped rod; 3011. Pressure plate; 3012. Spring; 4. L-shaped frame; 5. Electric actuator; 6. Rectangular frame; 7. Inspection piece. 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 a technical solution: a screw leak detection fixture for product assembly, including a detection platform 1 and a fixing component 3. The detection platform 1 serves as the base of the entire fixture, supporting all other components and the product to be tested. Four detection probes 101 are located on the top of the detection platform 1, and a photographic detection head 102 is also located on the top of the detection platform 1. A detection component 7 is placed on the top of the detection platform 1, and the screw installation position on the detection component 7 corresponds to the detection probes 101 and the photographic detection head 102. The detection probes 101 contact the heads of the screws already installed on the product, determining the presence or absence of screws by checking the continuity of the detection circuit. The photographic detection head 102 captures images of the screw positions on the product. By comparing with standard images, it can not only determine the presence or absence of screws but also detect whether the screw type is correct, whether the installation is in place, and even the thread condition inside the screw hole, providing richer detection content and higher accuracy.

[0024] The top of the testing table 1 is equipped with four clamping blocks 2, which are distributed on the top of the testing table 1 for initial positioning and clamping of the test piece 7 from the side or bottom. The fixing assembly 3 includes two vertical plates 301 and an L-shaped plate 305. There are two vertical plates 301, which are arranged in pairs to serve as the supporting skeleton of the entire clamping mechanism. The two vertical plates 301 are installed on the top of the clamping blocks 2. A cylindrical rod 302 is provided between the two vertical plates 301. The cylindrical rod 302 serves to connect and strengthen the structure. A torsion spring 304 is sleeved on the outside of the cylindrical rod 302. The torsion arm of the torsion spring 304 acts on the L-shaped plate 305. The L-shaped plate 305 is a force transmission lever. Two rotating shafts 306 are provided on either side of the L-shaped plate 305. The rotating shafts 306 are fitted onto the vertical plate 301. The vertical plate 301 has a rotating hole 303, in which the rotating shafts 306 fit. The engagement of the rotating shafts 306 and the rotating holes 303 on the vertical plate 301 forms a hinge connection, allowing the L-shaped plate 305 to swing up and down around the rotating shafts 306. This is crucial for achieving the pressing and releasing actions. One end of the L-shaped plate 305 is designed with a beveled structure. During the handling of the test piece 7, the inclined surface at one end of the L-shaped plate 305 is the first to contact the test piece 7, acting as a guide to make the handling process smoother and reduce impact and wear. A through hole 307 is provided at the top of one end of the L-shaped plate 305, and a U-shaped frame 308 is provided at the top of the through hole 307. A stepped rod 3010 is fitted onto the U-shaped frame 308, and a sliding hole 309 is provided on the U-shaped frame 308. The stepped rod 3010 fits inside the sliding hole 309. The sliding hole 309 is... The clamping component provides vertical guidance. The bottom end of the stepped rod 3010 is provided with a pressure plate 3011. The pressure plate 3011 is a component that directly contacts the product surface. The pressure plate 3011 applies force evenly to the product surface. A spring 3012 is sleeved on the outside of the stepped rod 3010. The spring 3012 is the core of flexible clamping. The spring 3012 is located between the pressure plate 3011 and the U-shaped frame 308. One end of the spring 3012 is connected to the U-shaped frame 308, and the other end is connected to the pressure plate 3011.

[0025] The top of the testing platform 1 is provided with L-shaped frames 4 on both sides. The top of the L-shaped frames 4 is provided with electric push rods 5. The electric push rods 5 serve as a power source. The output ends of the two electric push rods 5 are provided with rectangular frames 6. The rectangular frames 6 are located above the L-shaped plates 305. The rectangular frames 6 drive the two L-shaped plates 305 to move simultaneously.

[0026] The rectangular frame 6 at the output end is pushed down by the electric push rod 5. When the rectangular frame 6 moves downward, it will contact and press down on the two L-shaped plates 305. Under the pressure of the rectangular frame 6, the L-shaped plates 305 use their pivot 306 as the fulcrum to overcome the torque of the torsion spring 304 and swing downward, thereby opening the L-shaped plates 305 and placing the test piece 7 to be tested on the test table 1. It is placed in the area surrounded by the four clamping blocks 2, ensuring that each screw mounting hole on the product is roughly aligned with the preset test probe 101 and photographic test head 102 on the table.

[0027] Then, the electric actuator 5 drives the rectangular frame 6 to move upward, releasing the downward pressure on the L-shaped plate 305. Under the action of the torsion spring 304, one end of the L-shaped plate 305 presses on the detection piece 7. At the same time, the spring 3012 pushes the pressure plate 3011, causing the stepped rod 3010 to move in the sliding hole 309, thereby causing the pressure plate 3011 to clamp the detection piece 7.

[0028] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A screw leak detection fixture for product assembly, comprising a testing table (1), characterized in that: The top of the testing station (1) is provided with four clamps (2); It also includes a fixing component (3), which includes two vertical plates (301), and the two vertical plates (301) are installed on the top of the clamping block (2); A cylindrical rod (302) is provided between the two vertical plates (301), and a torsion spring (304) is sleeved on the outside of the cylindrical rod (302). It also includes an L-shaped plate (305), on both sides of which are provided with pivots (306), and the pivots (306) are fitted onto the vertical plate (301); The L-shaped plate (305) has a through hole (307) at one end, and a U-shaped frame (308) is provided at the top of the through hole (307). A step rod (3010) is fitted on the U-shaped frame (308), and a pressure plate (3011) is provided at the bottom of the step rod (3010). A spring (3012) is sleeved on the outside of the step rod (3010).

2. The screw leak detection fixture for product assembly according to claim 1, characterized in that, The top of the testing platform (1) is provided with four testing probes (101), the top of the testing platform (1) is provided with a photographic testing head (102), and a testing component (7) is placed on the top of the testing platform (1). The screw installation position on the testing component (7) corresponds to the testing probes (101) and the photographic testing head (102).

3. The screw leak detection fixture for product assembly according to claim 1, characterized in that, The top two sides of the testing platform (1) are provided with L-shaped frames (4), and the top of the L-shaped frame (4) is provided with electric push rods (5). The output ends of the two electric push rods (5) are provided with rectangular frames (6), and the rectangular frames (6) are located above the L-shaped plate (305).

4. The screw leak detection fixture for product assembly according to claim 1, characterized in that, The vertical plate (301) has a rotating hole (303), and the rotating shaft (306) is fitted into the rotating hole (303).

5. A screw leak detection fixture for product assembly according to claim 1, characterized in that, The U-shaped frame (308) has a sliding hole (309), and the stepped rod (3010) fits inside the sliding hole (309).

6. A screw leak detection fixture for product assembly according to claim 1, characterized in that, The spring (3012) is located between the pressure plate (3011) and the U-shaped frame (308). One end of the spring (3012) is connected to the U-shaped frame (308), and the other end is connected to the pressure plate (3011).

7. A screw leak detection fixture for product assembly according to claim 1, characterized in that, One end of the L-shaped plate (305) is designed as a sloping structure.

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