A feeding and discharging mechanism of a PCB detection device

Abstract

The utility model discloses a kind of feeding and discharging mechanism of PCB detection equipment, including the conveyor belt body and material limiting assembly for PCB detection equipment;Material limiting assembly is arranged on conveyor belt body;Material limiting assembly includes the material limiting plate for limiting PCB board horizontal direction, the material limiting plate for limiting PCB board vertical direction, guide slot and guide block;Two material limiting plates are symmetrically fixed on the both sides of conveyor belt body;Several material limiting plates are linear array between two material limiting plates and are rotatably connected with two material limiting plates by rotating shaft A, and material limiting plate is contacted with PCB board;Several guide slots are linear array and are opened on the opposite surface of two material limiting plates;Two guide blocks are symmetrically fixed on the both sides of material limiting plate, and guide block and guide slot are slidingly fitted, the feeding and discharging mechanism of this PCB detection equipment, simple and reasonable structure, ingenious design, in the feeding process, not only PCB board horizontal direction can be limited, but also PCB board vertical direction can be limited, greatly reduce use cost.

Description

Technical Field

[0001] This utility model relates to the field of PCB testing equipment technology, specifically to a loading and unloading mechanism for PCB testing equipment. Background Technology

[0002] PCB testing equipment refers to various devices used to inspect and evaluate the quality and functional integrity of printed circuit boards (PCBs). These devices use different technical means to ensure the quality and reliability of PCBs during manufacturing and use.

[0003] For example, Chinese utility model patent CN211003514U discloses a loading and unloading mechanism for a PCB inspection device, which includes a loading component, a base, a guide rail horizontally arranged on the base, and a suction cup that can move up and down. The loading component includes a loading plate that can move up and down and a loading roller arranged above the loading plate. The PCB board is placed on the loading plate and moves with the loading plate until it abuts the loading roller. The loading roller drives the PCB board to move horizontally. At least two feeding components are arranged on the guide rail, and the feeding components can move along the guide rail. The feeding components include a clamping member, which can clamp the PCB board and drive the PCB board to move horizontally. This utility model uses the feeding components to feed the PCB board to the device and below the suction cup, which is convenient to operate and improves efficiency. Furthermore, by feeding the PCB board into the device along the horizontal guide rail, the feeding components avoid interference in the feeding path and ensure the accuracy and stability of the device operation.

[0004] Currently, PCB inspection equipment on the market requires loading and unloading mechanisms to handle PCB boards. However, existing loading and unloading mechanisms not only require telescopic cylinders to drive active rollers to abut against the PCB board to restrict its vertical movement, but also require servo motors to drive the PCB board horizontally to pass through the next feeding component for transport. This significantly increases the cost of use, hinders the rapid development of small businesses, and affects the effectiveness of the loading and unloading mechanism. Utility Model Content

[0005] The purpose of this invention is to provide a loading and unloading mechanism for a PCB inspection device to solve the problem of high operating costs mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a loading and unloading mechanism for a PCB inspection equipment, comprising a conveyor belt body and a limiting component for the PCB inspection equipment; the limiting component is arranged on the conveyor belt body; the limiting component includes a limiting plate for limiting the horizontal direction of the PCB board, a stop plate for limiting the vertical direction of the PCB board, a guide groove, and a guide block; two limiting plates are symmetrically fixed on both sides of the conveyor belt body; a plurality of stop plates are arranged in a linear array between the two limiting plates and are rotatably connected to the two limiting plates through a rotating shaft A, and the stop plates are in contact with the PCB board; a plurality of guide grooves are linearly arranged on the opposite surfaces of the two limiting plates; two guide blocks are symmetrically fixed on both sides of the stop plates, and the guide blocks are slidably engaged with the guide grooves.

[0007] Preferably, the abutment plate has an inclined structure, the two sides of the abutment plate are arc-shaped surfaces, and the inclination direction of the abutment plate is the same as the conveying direction of the conveyor belt body.

[0008] Preferably, the guide groove has an arc-shaped structure, and the center of the guide groove is located on the axis of the rotation shaft A.

[0009] Preferably, it further includes a rolling assembly; the rolling assembly is arranged on the abutment plate.

[0010] Preferably, the rolling assembly includes an opening groove, a rolling column, and a friction-reducing groove; the bottom surface of the abutment plate has an opening groove; the rolling column is rotatably disposed in the opening groove via a rotating shaft B and contacts the top surface of the PCB board; the circumferential surface of the rolling column has a friction-reducing groove.

[0011] Preferably, the diameter of the rolling column is larger than the diameter of the arc surface of the abutment plate.

[0012] Preferably, the friction-reducing groove has a spiral structure.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, by setting up a material limiting component, starts the conveyor belt body, and then uses a screw lifter to move the loading plate up and down, horizontally transferring the PCB board onto the conveyor belt body via loading rollers. The PCB board is then conveyed on the conveyor belt body. When the PCB board contacts the inclined surface of the abutment plate, the PCB board presses against the abutment plate, causing the abutment plate to rotate via rotating shaft A and the limiting plate. This causes the guide block to slide within the guide groove until the bottom surface of the abutment plate contacts the top surface of the PCB board. At this point, the abutment plate stops rotating, and its own weight restricts the vertical direction of the PCB board. The PCB board is then inspected by PCB testing equipment and finally sucked out by a suction cup. Compared to existing technologies, this utility model has a simple and reasonable structure and ingenious design. During the feeding process, it can restrict not only the horizontal direction of the PCB board but also its vertical direction, greatly reducing the cost of use.

[0014] 2. By setting up a rolling component, when the circumferential surface of the rolling column contacts the top surface of the PCB board, the PCB board will drive the rolling column to rotate in the opening groove through the rotating shaft B during the movement, so as to facilitate the transportation of the PCB board. In addition, since the friction reduction groove is a spiral structure, the friction between the rolling column and the PCB board can be reduced by reducing the contact area between the rolling column and the PCB board, making the transportation of the PCB board more convenient. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the overall structure of this utility model; Figure 3 This is a schematic diagram of the material limiting plate structure of this utility model; Figure 4 This is a partial structural breakdown diagram of the present invention; Figure 5 For the present utility model Figure 2 Enlarged diagram of point A in the middle.

[0016] In the picture: 1. Conveyor belt body; 2. Material limiting assembly; 3. Rolling assembly; 201. Material limiting plate; 202. Material abutment plate; 203. Guide groove; 204. Guide block; 301. Opening groove; 302. Rolling column; 303. Friction reduction groove. Detailed Implementation

[0017] 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.

[0018] Please see Figures 1 to 5 This utility model provides a technical solution: a loading and unloading mechanism for a PCB inspection equipment, including a conveyor belt body 1 and a limiting component 2; the limiting component 2 is arranged on the conveyor belt body 1; the limiting component 2 includes a limiting plate 201 for limiting the horizontal direction of the PCB board, a stop plate 202 for limiting the vertical direction of the PCB board, a guide groove 203, and a guide block 204; two limiting plates 201 are symmetrically fixed on both sides of the conveyor belt body 1; three stop plates 202 are arranged in a linear array between the two limiting plates 201 and are rotatably connected to the two limiting plates 201 through a rotating shaft A, and the stop plates 202 are in contact with the PCB board; the two limiting plates 201 are arranged in a linear array on their opposite surfaces. The device is provided with six guide grooves 203; two guide blocks 204 are symmetrically fixed on both sides of the abutment plate 202, and the guide blocks 204 slide in cooperation with the guide grooves 203; the abutment plate 202 is an inclined structure with arc-shaped surfaces on both sides, and the inclination direction of the abutment plate 202 is the same as the conveying direction of the conveyor belt body 1, so as to facilitate the pressing of the abutment plate 202 by the PCB board, so that the abutment plate 202 can rotate; the guide grooves 203 are arc-shaped, and the center of the guide grooves 203 is on the axis of rotation A, so as to facilitate the abutment plate 202 to maintain an inclined state when it is not under force; the screw lifter, the feeding plate, the feeding roller and the suction cup are existing devices disclosed in the prior art CN211003514U.

[0019] This invention, by setting up a limiting component 2, activates the conveyor belt body 1, and then uses a screw lift to move the loading plate up and down, horizontally transferring the PCB board onto the conveyor belt body 1 via loading rollers. The PCB board is then conveyed on the conveyor belt body 1. When the PCB board contacts the inclined surface of the abutment plate 202, the PCB board presses against the abutment plate 202, causing the abutment plate 202 to rotate via the rotating shaft A and the limiting plate 201. This causes the guide block 204 to slide within the guide groove 203 until the bottom surface of the abutment plate 202 contacts the top surface of the PCB board. At this point, the abutment plate 202 stops rotating, and its own weight restricts the vertical direction of the PCB board. The PCB board is then inspected by the PCB inspection equipment and finally sucked out by a suction cup. Compared to existing technologies, this invention has a simple and reasonable structure and ingenious design. During the feeding process, it can restrict not only the horizontal direction of the PCB board but also its vertical direction, greatly reducing operating costs.

[0020] As a preferred embodiment, it also includes a rolling assembly 3; the rolling assembly 3 is arranged on the abutment plate 202; the rolling assembly 3 includes an opening groove 301, a rolling column 302 and a friction-reducing groove 303; the bottom surface of the abutment plate 202 has an opening groove 301; the rolling column 302 is rotatably disposed in the opening groove 301 via a rotating shaft B and contacts the top surface of the PCB board; the circumferential surface of the rolling column 302 has a friction-reducing groove 303; the diameter of the rolling column 302 is larger than the diameter of the arc surface of the abutment plate 202; the friction-reducing groove 303 has a spiral structure; the sum of the gravity of the abutment plate 202, the rotating shaft A, the guide block 204, the rolling column 302 and the rotating shaft B is less than the friction between the PCB board and the conveyor belt body 1.

[0021] This invention, by setting up a rolling assembly 3, allows the rolling column 302 to rotate within the opening groove 301 via the rotating shaft B when the circumferential surface of the rolling column 302 contacts the top surface of the PCB board. This facilitates the transport of the PCB board. Furthermore, since the friction-reducing groove 303 has a spiral structure, the friction between the rolling column 302 and the PCB board can be reduced by decreasing the contact area between them, making the transport of the PCB board more convenient.

[0022] Working principle: In use, the conveyor belt body 1 is started, and then the screw lift drives the loading plate to move up and down, moving the PCB board horizontally onto the conveyor belt body 1 via the loading rollers. The PCB board is then conveyed on the conveyor belt body 1. When the PCB board contacts the inclined surface of the abutment plate 202, the PCB board will squeeze the abutment plate 202, causing the abutment plate 202 to rotate via the rotating shaft A and the limiting plate 201. This causes the guide block 204 to slide in the guide groove 203 until the circumferential surface of the rolling column 302 contacts the top surface of the PCB board. At this time, during the movement of the PCB board, the rolling column 302 will rotate via the rotating shaft B in the opening groove 301 to facilitate the conveying of the PCB board. Since the friction reduction groove 303 is a spiral structure, the contact area between the rolling column 302 and the PCB board is reduced, which reduces the friction between the rolling column 302 and the PCB board, making the conveying of the PCB board more convenient. After the PCB board is inspected by the PCB inspection equipment, it can be sucked out by the suction cup.

[0023] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A loading and unloading mechanism for a PCB inspection device, characterized in that, The equipment includes a conveyor belt body (1) and a limiting component (2) for PCB inspection. The limiting component (2) is arranged on the conveyor belt body (1). The limiting component (2) includes a limiting plate (201) for limiting the horizontal direction of the PCB board, a stop plate (202) for limiting the vertical direction of the PCB board, a guide groove (203) and a guide block (204). Two limiting plates (201) are symmetrically fixed on both sides of the conveyor belt body (1). A plurality of stop plates (202) are arranged in a linear array between the two limiting plates (201) and are rotatably connected to the two limiting plates (201) through a rotating shaft A, and the stop plates (202) are in contact with the PCB board. A plurality of guide grooves (203) are arranged in a linear array on the opposite surfaces of the two limiting plates (201). Two guide blocks (204) are symmetrically fixed on both sides of the stop plates (202), and the guide blocks (204) are slidably engaged with the guide grooves (203).

2. The loading and unloading mechanism of a PCB inspection equipment according to claim 1, characterized in that, The abutment plate (202) has an inclined structure, and the two sides of the abutment plate (202) are arc-shaped surfaces. The inclination direction of the abutment plate (202) is the same as the conveying direction of the conveyor belt body (1).

3. The loading and unloading mechanism of a PCB inspection equipment according to claim 1, characterized in that, The guide groove (203) has an arc-shaped structure, and the center of the guide groove (203) is located on the axis of the rotating shaft A.

4. The loading and unloading mechanism of a PCB inspection equipment according to claim 2, characterized in that, It also includes a rolling component (3); the rolling component (3) is arranged on the abutment plate (202).

5. The loading and unloading mechanism of a PCB inspection equipment according to claim 4, characterized in that, The rolling assembly (3) includes an opening groove (301), a rolling column (302), and a friction-reducing groove (303); the bottom surface of the abutment plate (202) is provided with an opening groove (301); the rolling column (302) is rotatably disposed in the opening groove (301) via a rotating shaft B and contacts the top surface of the PCB board; the circumferential surface of the rolling column (302) is provided with a friction-reducing groove (303).

6. The loading and unloading mechanism of a PCB inspection equipment according to claim 5, characterized in that, The diameter of the rolling column (302) is larger than the diameter of the arc surface of the abutment plate (202).

7. The loading and unloading mechanism of a PCB inspection equipment according to claim 5, characterized in that, The friction reduction groove (303) has a spiral structure.

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