A fool-proof structure applied to a PCB

Abstract

The utility model discloses a kind of prevent stupid structures applied to PCB, comprising: carrier body, positioning slot for placing PCB is provided on it, several identification holes are provided on the bottom surface of positioning slot;Prevent stupid component, it includes mounting seat, telescopic arm and photoelectric sensor, the accommodating groove corresponding to positioning slot is set on the back of carrier body, mounting seat is detachably mounted on the bottom surface of accommodating groove, telescopic arm includes support arm and extension rod, support arm is rotatably mounted on mounting seat, cavity for accommodating extension rod is provided on support arm, extension rod is slidably connected on support arm, photoelectric sensor is set on extension rod.The utility model compared with prior art, solve the problem that existing PCB processing carrier does not have the ability to prevent stupid to distinguish same appearance PCB.

Description

Technical Field

[0001] This utility model relates to the field of PCB processing technology, and in particular to a foolproof structure for use on PCB boards. Background Technology

[0002] In PCB manufacturing, a carrier is typically used for positioning to protect the PCB board. For example, Chinese patent CN210807817U discloses a PCB board forward and reverse processing positioning carrier, including a board body with four positioning areas. Each positioning area has a dispensing groove penetrating the upper and lower surfaces of the board body. The board body also has a carrier bushing, with a bushing pressure plate on the outer side of the bushing to fix it to the board body. Anti-static conductive strips are provided on the two long sides of the board body. Two hooks are located on the side of the positioning area closest to the anti-static conductive strips, and each hook has a pin that mates with a product pin hole. The hooks are linked to an external force unlocking mechanism.

[0003] The carrier uses the shape of the PCB board for positioning. Since some PCBs have completely identical shapes, vias on the PCB board are needed to allow subsequent processing equipment to identify and distinguish them. Existing carriers lack the ability to distinguish PCBs with the same shape, leading to incorrect PCB installation and affecting PCB processing efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a foolproof structure for PCB boards, so as to solve the problem that existing PCB processing carriers do not have the ability to distinguish PCBs with the same shape.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a foolproof structure applied to a PCB board, comprising:

[0006] The vehicle body has a positioning slot for placing a PCB board, and several identification holes are provided on the bottom surface of the positioning slot.

[0007] The foolproof component includes a mounting base, a telescopic arm, and a photoelectric sensor. The back of the carrier body is provided with a receiving groove corresponding to the positioning groove. The mounting base is detachably mounted on the bottom surface of the receiving groove. The telescopic arm includes a support arm and an extension rod. The support arm is rotatably mounted on the mounting base. The support arm is provided with a cavity for receiving the extension rod. The extension rod is slidably connected to the support arm. The photoelectric sensor is located on the extension rod.

[0008] As a further description of the above technical solution:

[0009] The mounting base is equipped with suction cups, which are attached to the bottom surface of the receiving groove.

[0010] As a further description of the above technical solution:

[0011] The suction cup is a silicone suction cup.

[0012] As a further description of the above technical solution:

[0013] An auxiliary connector is fitted onto the photoelectric sensor, and a connecting plate is provided on one side of the auxiliary connector, which contacts the side wall of the receiving groove.

[0014] As a further description of the above technical solution:

[0015] The connecting plate is a magnet.

[0016] As a further description of the above technical solution:

[0017] An adhesive layer is provided on the surface of the connecting plate.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0019] 1. In this utility model, the positions of multiple identification holes on the bottom surface of the positioning groove correspond to the via positions of different PCBs with the same shape. When processing a certain type of PCB, the photoelectric sensor is controlled to move and align with the via of that PCB. If it is another PCB with the same shape, the via on it is not at the identification hole of the current photoelectric sensor, and the board itself blocks the upper side of the identification hole, causing it to be detected by the photoelectric sensor and triggering an alarm, thus achieving foolproof protection.

[0020] 2. In this utility model, the mounting base is provided with a suction cup, which is attached to the bottom surface of the receiving groove to realize the detachability of the mounting base and to realize the quick assembly and disassembly and adjustment of the mounting base. With the help of the rotatable telescopic arm, the photoelectric sensor can be aligned with different recognition holes to realize the recognition of different PCB board vias. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A schematic diagram of a foolproof structure applied to a PCB board. Figure 1 .

[0023] Figure 2 A schematic diagram of a foolproof structure applied to a PCB board. Figure 2 .

[0024] Figure 3This is a schematic diagram of a foolproof component in a foolproof structure applied to a PCB board.

[0025] Legend:

[0026] 1. Carrier body; 11. Positioning slot; 111. Identification hole; 12. Receiving slot; 2. Mounting base; 21. Suction cup; 3. Telescopic arm; 31. Support arm; 32. Extension rod; 4. Photoelectric sensor; 41. Auxiliary connecting base; 411. Connecting plate. Detailed Implementation

[0027] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1

[0029] Please see Figure 1-3 This utility model provides a technical solution: a foolproof structure applied to a PCB board, comprising:

[0030] The vehicle body 1 has a positioning groove 11 for placing a PCB board, and a number of identification holes 111 are provided on the bottom surface of the positioning groove 11.

[0031] The foolproof component includes a mounting base 2, a telescopic arm 3, and a photoelectric sensor 4. The back of the carrier body 1 is provided with a receiving groove 12 corresponding to the positioning groove 11. The mounting base 2 is detachably mounted on the bottom surface of the receiving groove 12. The telescopic arm 3 includes a support arm 31 and an extension rod 32. The support arm 31 is rotatably mounted on the mounting base 2. The support arm 31 is provided with a cavity for receiving the extension rod 32. The extension rod 32 is slidably connected to the support arm 31. The photoelectric sensor 4 is provided on the extension rod 32.

[0032] Working principle: The multiple identification holes on the bottom surface of the positioning groove correspond to the via positions of different PCBs with the same shape. When processing a certain type of PCB, the photoelectric sensor 4 is moved to align with the via of that PCB. If it is a different PCB with the same shape, its via is not located at the identification hole 111 of the current photoelectric sensor 4. The board itself blocks the upper side of the identification hole 111, causing it to be detected by the photoelectric sensor 4 and triggering an alarm, thus preventing mistaken identification.

[0033] Example 2

[0034] Based on the above embodiments, this embodiment further improves upon the following technical solutions: a suction cup 21 is provided on the mounting base 2, which is attached to the bottom surface of the receiving groove 12 to make the mounting base 2 detachable and to enable quick assembly, disassembly and adjustment of the mounting base 2. With the help of the rotatable telescopic arm 3, the photoelectric sensor 4 can be aligned with different recognition holes 111 to achieve the recognition of different PCB board vias.

[0035] Specifically, suction cup 21 is a silicone suction cup to ensure connection quality.

[0036] Example 3

[0037] This embodiment further improves upon the above embodiment by providing the following technical solution: an auxiliary connecting seat 41 is fitted onto the photoelectric sensor 4, and a connecting plate 411 is provided on one side of the auxiliary connecting seat 41, which contacts the side wall of the receiving groove 12. The auxiliary connecting seat 41 is rotatably mounted on the photoelectric sensor 4, fully positioning the photoelectric sensor 4 and preventing positional displacement of the photoelectric sensor 4.

[0038] The connecting plate 411 can be connected to the side wall of the receiving groove 12 in different ways.

[0039] Option 1: The connecting plate 411 is a magnet, which is fixed to the side wall of the receiving groove 12 by magnetic attraction.

[0040] Option 2: An adhesive layer is provided on the surface of the connecting plate 411, so that the connecting plate 411 is fixed to the side wall of the receiving groove 12 by adhesive bonding.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A foolproof structure for use on a PCB board, characterized in that, include: The vehicle body is provided with a positioning groove for placing a PCB board, and a number of identification holes are provided on the bottom surface of the positioning groove. The foolproof assembly includes a mounting base, a telescopic arm, and a photoelectric sensor. The back of the carrier body is provided with a receiving groove corresponding to the positioning groove. The mounting base is detachably mounted on the bottom surface of the receiving groove. The telescopic arm includes a support arm and an extension rod. The support arm is rotatably mounted on the mounting base. The support arm is provided with a cavity for receiving the extension rod. The extension rod is slidably connected to the support arm. The photoelectric sensor is disposed on the extension rod.

2. The error-proof structure for PCB boards according to claim 1, characterized in that, The mounting base is equipped with a suction cup, which is attached to the bottom surface of the receiving groove.

3. The error-proof structure for PCB boards according to claim 2, characterized in that, The suction cup is a silicone suction cup.

4. The error-proof structure for a PCB board according to claim 1, characterized in that, An auxiliary connector is fitted onto the photoelectric sensor, and a connecting plate is provided on one side of the auxiliary connector, which contacts the side wall of the receiving groove.

5. The error-proof structure for a PCB board according to claim 4, characterized in that, The connecting plate is a magnet.

6. The error-proof structure for a PCB board according to claim 4, characterized in that, An adhesive layer is provided on the surface of the connecting plate.

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