Circuit board transfer tray

Abstract

A circuit board transfer tray, the tray is a flat structure, the top surface is provided with a plurality of columns of counterbores, each column of counterbores is provided with a circular through hole penetrating through both ends of the tray, the through holes on both sides are in communication with the side surface of the counterbores, the distance between the axis of the through hole and the corresponding side surface of the counterbores is less than the radius of the through hole, and the distance between the axis of the through hole and the bottom surface of the counterbores is greater than the thickness of the circuit board; the periphery of each column of counterbores is provided with an annular structure of rubber band, the rubber band penetrates through the through holes on both sides of the same column of counterbores and the two ends of the tray; when the rubber band is in a natural state, the side thereof facing the counterbores protrudes into the counterbores, and is used for pressing the circuit board placed in the counterbores; when the rubber band is stretched by a predetermined length, the side surface thereof hides into the through hole, so as to achieve the purpose of releasing the circuit board. The scheme can more stably store the circuit board and prevent the circuit board from falling out.

Description

Technical Field

[0001] This utility model belongs to the technical field of circuit board storage devices, and in particular relates to a circuit board transfer tray. Background Technology

[0002] In the production of optical modules, the circuit boards of the optical modules need to be transferred between multiple processes such as dispensing and bonding. Currently, the transfer trays mainly use countersunk holes on their surface to position the circuit boards. Then, multiple circuit boards are transferred together to the dispensing and bonding equipment under the tray for processing. The tray also serves as a positioning fixture. In order to facilitate the loading and unloading of circuit boards in the countersunk holes, the size of the countersunk holes is designed to be slightly larger, resulting in a certain gap between the circuit board and the edge of the countersunk hole. This not only affects the stability of the circuit board, but also makes it easy for the circuit board to jump out of the countersunk hole due to vibration during the transfer process. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a circuit board transfer tray, which allows for more stable storage of circuit boards and prevents them from falling out.

[0004] In order to achieve the purpose of this utility model, the following solution is proposed: A circuit board transfer tray has a flat plate structure with multiple rows of countersunk holes arrayed on its top surface. Each row of countersunk holes has a circular through hole that penetrates both ends of the tray on both sides. The through holes on both sides are connected to the side of the countersunk hole. The distance between the axis of the through hole and the corresponding side of the countersunk hole is less than the radius of the through hole, and the distance between the axis of the through hole and the bottom surface of the countersunk hole is greater than the thickness of the circuit board. Each row of countersunk holes is provided with an annular elastic band on its periphery, and the elastic band passes through the through holes on both sides of the same row of countersunk holes and the two ends of the tray; When the elastic band is in its natural state, its side facing the countersunk hole protrudes into the countersunk hole to press the circuit board placed in the countersunk hole; when the elastic band is stretched to a predetermined length, its side is hidden into the through hole to release the circuit board.

[0005] The beneficial effects of this utility model are as follows: by using the part of the elastic band that protrudes into the countersunk hole in its natural state to press the circuit board tightly, it can effectively prevent the circuit board from shaking and prevent the circuit board from jumping out of the countersunk hole. Moreover, multiple circuit boards in the countersunk holes can be released at the same time simply by stretching the elastic band. Attached Figure Description

[0006] The accompanying drawings described herein are merely illustrative of selected embodiments, not all possible implementations, and are not intended to limit the scope of this invention.

[0007] Figure 1 A schematic diagram of the overall structure of this application is shown.

[0008] Figure 2 An overall cross-sectional view of this application is shown when the elastic band is in its natural state.

[0009] Figure 3 A partial cross-sectional view of this application is shown in the natural state of the elastic band.

[0010] Figure 4 A partial structural schematic diagram of this application is shown when the elastic band is stretched.

[0011] Figure 5 An overall cross-sectional view of this application is shown when the elastic band is stretched.

[0012] Figure 6 A partial cross-sectional view of this application is shown when the elastic band is stretched.

[0013] Marked in the diagram: Countersunk hole-11, Through hole-12, Elastic band-2, Straight rod-3, Guide rod-31, Screw-4. Detailed Implementation

[0014] To make the objectives, technical solutions and advantages of the embodiments of this utility model clearer, the implementation methods of this utility model will be described in detail below with reference to the accompanying drawings. However, the embodiments described in this utility model are only some embodiments of this utility model, and not all embodiments.

[0015] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0016] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, and are only for the convenience of describing this utility model and simplifying the description. The terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. The terms "parallel," "vertical," etc., do not mean that the components are required to be absolutely parallel or perpendicular, but can be slightly tilted.

[0017] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0018] like Figures 1 to 6 As shown, a circuit board transfer tray is a flat plate structure with multiple rows of countersunk holes 11 arrayed on its top surface. Each row of countersunk holes 11 has circular through holes 12 extending through both ends of the tray on both sides. The through holes 12 on both sides are connected to the side of the countersunk hole 11. The distance between the axis of the through hole 12 and the corresponding side of the countersunk hole 11 is less than the radius of the through hole 12, and the distance between the axis of the through hole 12 and the bottom surface of the countersunk hole 11 is greater than the thickness of the circuit board.

[0019] Each row of countersunk holes 11 is provided with an annular elastic band 2 on its periphery. The elastic band 2 passes through the through holes 12 on both sides of the same row of countersunk holes 11 and the two ends of the tray.

[0020] like Figure 3 As shown, when the elastic band 2 is in its natural state, its side facing the countersunk hole 11 protrudes into the countersunk hole 11, used to press the circuit board placed in the countersunk hole 11 firmly; as Figure 6 As shown, when the elastic band 2 is stretched to a predetermined length, its cross-section will shrink as the length of the elastic band 2 is extended, thereby hiding its side inside the through hole 12 to achieve the purpose of releasing the circuit board.

[0021] The above solution eliminates the need to stretch the elastic band 2 when placing the circuit board into the countersunk hole 11. The circuit board is simply pressed into the countersunk hole 11 and moved under the elastic band 2. The part of the elastic band 2 that protrudes into the countersunk hole 11 in its natural state presses the circuit board firmly, which can effectively prevent the circuit board from shaking and prevent the circuit board from jumping out of the countersunk hole 11. In addition, the elastic band 2 is made of rubber, which can prevent scratches on the side of the circuit board.

[0022] Preferred, such as Figure 1 , Figure 2 and Figure 4 As shown, a straight rod 3 is provided at the outer end of the tray. The section of the elastic band 2 protruding from the outside of the tray is sleeved on the straight rod 3. When the elastic band 2 is in its natural state, the straight rod 3 is in close contact with the end face of the tray. This solution can stretch multiple elastic bands 2 at the same time by pulling the straight rod 3 outward, which facilitates the simultaneous release of all circuit boards in the countersunk holes 11.

[0023] Preferred, such as Figure 4As shown, the straight rod 3 is threaded through at least one screw 4 parallel to the through hole 12. The front end of the screw 4 abuts against the end face of the tray. By rotating the screw 4, the distance between the straight rod 3 and the end face can be adjusted, thereby achieving the purpose of stretching the elastic band 2. After the position of the straight rod 3 is adjusted, the position of the straight rod 3 can be fixed by the screw 4 to prevent the straight rod 3 from automatically moving towards the tray under the elastic force of the elastic band 2, thereby keeping the elastic band 2 in a taut state and releasing all circuit boards, making it convenient to continuously remove the circuit boards. The screw 4 can be rotated manually.

[0024] Preferred, such as Figure 5 As shown, the straight rod 3 has round holes that correspond one-to-one with the through holes 12, which are used to pass through the rubber band 2, thereby improving the installation stability of the straight rod 3 and preventing the straight rod 3 from falling off.

[0025] Preferred, such as Figure 4 As shown, the cross-section of the straight rod 3 is U-shaped with the U-shaped opening facing outwards. This structure can effectively improve the bending strength of the straight rod 3, and can also hide the elastic band 2 inside the U-shaped opening to prevent the elastic band 2 from being exposed and reduce the probability of its damage.

[0026] Preferred, such as Figure 4 As shown, guide rods 31 are vertically provided at both ends of the straight rod 3. The guide rods 31 are all inserted through the end of the tray and are parallel to the through hole 12. The above structure can effectively improve the stability of the straight rod 3 when it moves, ensure that the straight rod 3 is always perpendicular to the through hole 12, and avoid the inconsistent stretching length of each elastic band 2.

[0027] Preferred, such as Figure 2 , Figure 5 As shown, the axial direction of the through hole 12 is consistent with the length direction of the countersunk hole 11, thereby increasing the contact length range between the elastic band 2 and the circuit board, thus improving the stability when pressing the circuit board.

[0028] The above description is merely a preferred embodiment of this utility model and does not represent the only or limiting embodiment. Those skilled in the art should understand that various changes or equivalent substitutions made to this utility model without departing from its scope are all within the protection scope of this utility model.

Claims

1. A circuit board transfer tray, characterized in that, The tray is a flat plate structure with multiple rows of countersunk holes (11) arrayed on its top surface. Each row of countersunk holes (11) has a circular through hole (12) on both sides that penetrates both ends of the tray. The through holes (12) on both sides are connected to the side of the countersunk hole (11). The distance between the axis of the through hole (12) and the side of the corresponding countersunk hole (11) is less than the radius of the through hole (12), and the distance between the axis of the through hole (12) and the bottom surface of the countersunk hole (11) is greater than the thickness of the circuit board. Each row of countersunk holes (11) is provided with an annular elastic band (2) on its periphery. The elastic band (2) passes through the through holes (12) on both sides of the same row of countersunk holes (11) and the two ends of the tray. When the elastic band (2) is in its natural state, its side facing the countersunk hole (11) protrudes into the countersunk hole (11) to press the circuit board placed in the countersunk hole (11); when the elastic band (2) is stretched to a predetermined length, its side is hidden into the through hole (12) to release the circuit board.

2. A circuit board transfer tray according to claim 1, characterized in that, A straight rod (3) is provided at the outer end of the tray. A section of the elastic band (2) protruding from the outside of the tray is fitted onto the straight rod (3). When the elastic band (2) is in its natural state, the straight rod (3) is in close contact with the end face of the tray.

3. A circuit board transfer tray according to claim 2, characterized in that, The straight rod (3) is provided with at least one screw (4) parallel to the through hole (12), and the front end of the screw (4) abuts against the end face of the tray.

4. A circuit board transfer tray according to claim 3, characterized in that, The straight rod (3) has a round hole that corresponds one-to-one with the through hole (12) for passing through the elastic band (2).

5. A circuit board transfer tray according to claim 4, characterized in that, The cross section of the straight rod (3) is U-shaped, and the U-shaped opening faces outward.

6. A circuit board transfer tray according to claim 3, characterized in that, The straight rod (3) has guide rods (31) vertically installed at both ends. The guide rods (31) are all inserted through the end of the tray and are parallel to the through hole (12).

7. A circuit board transfer tray according to claim 1, characterized in that, The axial direction of the through hole (12) is consistent with the length direction of the countersunk hole (11).

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