Bearing device for optical detection of PCB (Printed Circuit Board)

Abstract

The utility model belongs to the technical field of optical detection of circuit boards, and particularly relates to a bearing device for optical detection of a PCB (printed circuit board), which comprises a fixed base, a detection table is arranged in front of the fixed base, a detection camera is fixedly mounted on the right side of the detection table, and a fixed frame is arranged above the fixed base; a motor drives a driving shaft to rotate to enable a plurality of transmission gears to rotate, so that the driving gear drives a plurality of sliding blocks and clamping blocks to slide, the outer side of a circuit board is clamped, the circuit board can move through a rotating disc and a mounting shaft after being clamped, and the detection range of a detection camera is conveniently increased; after detection is completed, the detection camera can classify the circuit boards into qualified products and unqualified products, the device can enable the fixing plate to move at multiple angles through cooperation of the rotary disc and the mounting shaft, and therefore the device can achieve automatic feeding and discharging and classification.

Description

Technical Field

[0001] The utility model relates to the technical field of optical detection of circuit boards, in particular to a bearing device used for optical detection of PCB circuit boards. Background Art

[0002] PCB, also known as printed circuit board, is the provider of electrical connections for electronic components. It has a history of more than 100 years; its design is mainly layout design; the main advantage of using circuit boards is that it greatly reduces wiring and assembly errors, and improves the level of automation and production labor rate. According to the number of layers of the circuit board, it can be divided into single-sided board, double-sided board, four-layer board, six-layer board and other multi-layer circuit boards. Since printed circuit boards are not general terminal products, the definition of the name is slightly confusing. For example: the motherboard used in personal computers is called the mainboard, and cannot be directly called a circuit board. Although there are circuit boards in the motherboard, they are not the same. Therefore, when evaluating the industry, the two are related but cannot be said to be the same. For example: because there are integrated circuit parts loaded on the circuit board, the news media calls it an IC board, but in fact it is not equivalent to a printed circuit board. The printed circuit board we usually refer to is a bare board, that is, a circuit board without components. In the process of circuit board detection, a bearing device for optical detection of PCB circuit boards is required for bearing detection;

[0003] Announcement No. CN110672633A discloses a bearing device for optical inspection of PCB circuit boards, including two upper ends of a base fixedly connected to side plates, opposite sides of the side plates are slidably connected to bearing plates through a sliding mechanism, the upper end of the bearing plate is provided with a placement groove, the inner bottom end of the placement groove is provided with a through hole, the lower end of the base is fixedly connected to a telescopic cylinder, and the output shaft end of the telescopic cylinder is fixedly connected to a push plate;

[0004] There may be two problems when using it. During the inspection process, the staff is required to place the circuit board on the carrier plate. The clamping force of circuit boards of different sizes is different, which makes the smaller circuit boards easy to loosen during the clamping process, making the circuit boards easy to be damaged. Therefore, we propose a carrier device for optical inspection of PCB circuit boards. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a bearing device for optical detection of PCB circuit boards.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A bearing device for optical inspection of a PCB circuit board comprises a fixed base, a detection platform is arranged in front of the fixed base, a detection camera is fixedly installed on the right side of the detection platform, and a fixing frame is arranged above the fixed base.

[0008] As a preferred technical solution of the present application, a mounting plate is fixedly installed between the inner sides of the fixed frame, a first motor is fixedly installed on the rear side of the mounting plate, a driving shaft is fixedly installed on the output end of the first motor, a sliding frame is fixedly installed at the four corners between the inner sides of the mounting plate, and a sliding block is slidably installed between the inner sides of the sliding frame.

[0009] As a preferred technical solution of the present application, rotating shafts are rotatably installed at the four corners of the inner side of the mounting plate, and transmission gears are fixedly installed on the outer sides of the rotating shaft and the driving shaft, and adjacent transmission gears are meshed with each other.

[0010] As a preferred technical solution of the present application, an annular groove is provided on the inner side of the sliding block, a tooth groove is provided on one side of the annular groove, a driving gear is fixedly mounted on the outer side of the rotating shaft, and the driving gear meshes with the adjacent tooth groove.

[0011] As a preferred technical solution of the present application, a clamping block is fixedly installed on the outer side of the sliding block, a clamping groove is opened on one side of the clamping block, a sponge protective pad is arranged on the inner side of the clamping groove, a sliding rod is slidably installed between one side of the sliding rod, a spring is fixedly installed on the left and right sides between one side of the sliding rod, and a splint is fixedly installed on the other end of the sliding rod and the spring.

[0012] As a preferred technical solution of the present application, a turntable is fixedly installed on the top of the fixed base, a second motor is fixedly installed between the inner sides of the fixed base, a fixed shaft is fixedly installed on the output end of the second motor, a movable gear is fixedly installed on the outer side of one end of the fixed shaft, and a tooth groove is opened on the outer side of the turntable, and the movable gear is meshed with the adjacent tooth groove.

[0013] As a preferred technical solution of the present application, a support frame is fixedly installed on the top of the turntable, a mounting shaft is rotatably installed between the inner sides of the support frame, a worm gear is fixedly installed on the outer side of the mounting shaft, a protective cover is fixedly installed on one side of the support frame, a third motor is fixedly installed on one side of the protective cover, a worm is fixedly installed on the output end of the third motor, the worm and the worm wheel are meshed, and a fixing plate is fixedly installed on the outer side of the mounting shaft.

[0014] As a preferred technical solution of the present application, a mounting groove is provided on the outer side of the fixing plate, the outer diameter of the mounting shaft is the same as the inner diameter of the mounting groove, and the fixing frame is fixedly installed on the top of the fixing plate.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] (1) The utility model is a bearing device for optical inspection of PCB circuit boards. A motor drives a driving shaft to rotate and then a plurality of transmission gears are rotated, so that the driving gear drives a plurality of sliding blocks and a clamping block to slide, so that the outer side of the circuit board is clamped. During the clamping process, the clamping force of the clamping block can be controlled by sliding the clamping block. The cooperation of the slide bar and the spring makes the circuit boards of different sizes more stable during clamping. After clamping, the circuit board can move through the turntable and the mounting shaft, so as to increase the detection range of the detection camera.

[0017] (2) The utility model is a carrier device for optical inspection of PCB circuit boards. After the inspection is completed, the inspection camera can classify the circuit boards into qualified products and unqualified products. The device can make the fixed plate move at multiple angles through the cooperation of the turntable and the installation shaft, so that the device can realize automatic loading and unloading and classification. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of a carrying device for optical detection of PCB circuit boards proposed by the utility model;

[0019] Figure 2 for Figure 1 Schematic diagram of the structure of part A in FIG.

[0020] Figure 3 A schematic diagram of a partial three-dimensional structure of a carrier device for optical inspection of PCB circuit boards proposed by the utility model;

[0021] Figure 4 A schematic diagram of a partial three-dimensional structure of a carrier device for optical inspection of PCB circuit boards proposed by the utility model;

[0022] Figure 5 The present invention is a schematic diagram of a partial three-dimensional structure of a carrier device for optical detection of PCB circuit boards proposed by the present invention.

[0023] Markings in the figure:

[0024] 1. Fixed base; 2. Inspection table; 3. Inspection camera; 4. Fixed frame; 5. Mounting plate; 6. First motor; 7. Driving shaft; 8. Sliding frame; 9. Sliding block; 10. Rotating shaft; 11. Driving gear; 12. Transmission gear; 13. Clamping block; 14. Turntable; 15. Second motor; 16. Fixed shaft; 17. Movable gear; 18. Support frame; 19. Mounting shaft; 20. Worm gear; 21. Protective cover; 22. Third motor; 23. Worm; 24. Fixed plate; 25. Sliding rod; 26. Spring; 27. Clamp. DETAILED DESCRIPTION

[0025] To make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments.

[0026] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the present invention to be protected, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0029] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "upper", "lower", etc. is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the invention product is usually placed when in use, or the orientation or position relationship commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0030] refer to Figure 1-5 A carrying device for optical inspection of PCB circuit boards includes a fixed base 1, a detection platform 2 is arranged in front of the fixed base 1, and a detection camera 3 is fixedly installed on the right side of the detection platform 2. The clamped circuit board is moved to the top of the detection platform 2, and the circuit board can be clamped by the detection camera 3. A fixing frame 4 is arranged above the fixed base 1.

[0031] Specifically, a mounting plate 5 is fixedly installed between the inner sides of the fixed frame 4, a first motor 6 is fixedly installed on the rear side of the mounting plate 5, a driving shaft 7 is fixedly installed on the output end of the first motor 6, a sliding frame 8 is fixedly installed at the four corners between the inner sides of the mounting plate 5, and a sliding block 9 is slidably installed between the inner sides of the sliding frame 8. It should be noted that the mounting plate 5 facilitates the installation of the sliding frame 8, so that the sliding frame 8 can limit the sliding block 9, so that the sliding block 9 can slide on the inner side of the sliding frame 8 after being subjected to force.

[0032] Specifically, a rotating shaft 10 is rotatably installed at the four corners between the inner sides of the mounting plate 5, and transmission gears 12 are fixedly installed on the outer sides of the rotating shaft 10 and the driving shaft 7, and adjacent transmission gears 12 are meshed with each other. It should be noted that after the first motor 6 drives the driving shaft 7 to rotate, the rotating shaft 10 can be driven to rotate through the transmission gear 12 on the outer side of the driving shaft 7, so that a single first motor 6 can drive the rotating shaft 10 to rotate in multiple directions.

[0033] Specifically, an annular groove is provided on the inner side of the sliding block 9, and a tooth groove is provided on one side of the annular groove. A driving gear 11 is fixedly installed on the outer side of the rotating shaft 10, and the driving gear 11 is meshed with the adjacent tooth groove. It should be noted that the annular groove facilitates the opening of the tooth groove, so that the rotating shaft 10 can drive the sliding block 9 to slide through the driving gear 11 after rotation, so that the sliding block 9 drives the clamping block 13 to move, so that the clamping block 13 clamps the circuit board.

[0034] Specifically, a clamping block 13 is fixedly installed on the outer side of the sliding block 9, a clamping groove is opened on one side of the clamping block 13, and a sponge protective pad is arranged on the inner side of the clamping groove. A sliding rod 25 is slidably installed between one side of the sliding rod 13, and a spring 26 is fixedly installed on the left and right sides between one side of the sliding rod 13, and a clamping plate 27 is fixedly installed on the other end of the sliding rod 25 and the spring 26. It should be noted that the sponge protective pad is convenient for protecting the circuit board, so that the circuit board is not easily damaged during the clamping process.

[0035] Specifically, a turntable 14 is fixedly installed on the top of the fixed base 1, a second motor 15 is fixedly installed between the inner sides of the fixed base 1, a fixed shaft 16 is fixedly installed on the output end of the second motor 15, a movable gear 17 is fixedly installed on the outer side of one end of the fixed shaft 16, and a tooth groove is opened on the outer side of the turntable 14, and the movable gear 17 is meshed with the adjacent tooth groove. It should be noted that the second motor 15 is controlled to drive the fixed shaft 16 to rotate, so that the fixed shaft 16 can cooperate with the tooth groove on the outer side of the turntable 14 through the movable gear 17, so that the movable gear 17 can drive the turntable 14 to rotate.

[0036] Specifically, a support frame 18 is fixedly installed on the top of the turntable 14, and a mounting shaft 19 is rotatably installed between the inner sides of the support frame 18, a worm gear 20 is fixedly installed on the outer side of the mounting shaft 19, a protective cover 21 is fixedly installed on one side of the support frame 18, and a third motor 22 is fixedly installed on one side of the protective cover 21, and a worm 23 is fixedly installed on the output end of the third motor 22, and the worm 23 and the worm wheel 20 are meshed, and a fixing plate 24 is fixedly installed on the outer side of the mounting shaft 19. It should be noted that the protective cover 21 is convenient for protecting the worm wheel 20 and the worm 23 to prevent dust from entering, so that the third motor 22 can drive the worm 23 to rotate, and the worm 23 can drive the worm wheel 20 to rotate after rotation, so that the worm wheel 20 can drive the mounting shaft 19 and the fixing plate 24 to move after rotation, and the worm wheel 20 and the worm 23 are self-locking, so that the device is not easy to loosen.

[0037] Specifically, a mounting groove is provided on the outer side of the fixing plate 24, the outer diameter of the mounting shaft 19 is the same as the inner diameter of the mounting groove, and the fixing frame 4 is fixedly installed on the top of the fixing plate 24. It should be noted that the mounting groove facilitates the fixing plate 24 to be installed on the outer side of the mounting shaft 19, so that the mounting shaft 19 can drive the fixing plate 24 and the fixing frame 4 above to move after rotation, so that the clamped circuit board can follow the movement.

[0038] The specific operation is that the device is connected to an external power supply, so that after the first motor 6 drives the driving shaft 7 to rotate, the transmission gear 12 outside the driving shaft 7 can drive the rotating shaft 10 to rotate, so that the single first motor 6 can drive the rotating shaft 10 in multiple directions to rotate, and the rotating shaft 10 can drive multiple driving gears 11 to rotate after rotating, and the driving gear 11 drives the sliding block 9 to slide after rotating, so that the sliding block 9 drives the clamping block 13 to move, so that the clamping block 13 clamps the circuit board, and after the clamping is completed, the second motor 15 can drive The fixed shaft 16 rotates, so that the fixed shaft 16 can drive the turntable 14 to rotate through the movable gear 17, so that the turntable 14 can control the movement direction of the circuit board after clamping, and control the third motor 22 to drive the worm 23 to rotate, so that the worm 23 drives the worm wheel 20 to rotate, so that the worm wheel 20 can drive the installation shaft 19 to rotate after rotation, so that the installation shaft 19 can drive the fixed plate 24 and the circuit board above to move after rotation, so that detection and loading and unloading are more convenient, and classification can be automatically performed, so that the circuit boards can be placed on multiple conveyor belts respectively.

[0039] The above is a detailed introduction to a carrier device for optical detection of PCB circuit boards provided by the utility model. This article uses specific embodiments to explain the principle and implementation of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A carrier device for optical inspection of PCB circuit boards, characterized in that: include: A fixed base (1), a detection platform (2) is arranged in front of the fixed base (1), a detection camera (3) is fixedly installed on the right side of the detection platform (2), and a fixing frame (4) is arranged above the fixed base (1).

2. A carrying device for optical detection of PCB circuit boards according to claim 1, characterized in that: A mounting plate (5) is fixedly mounted between the inner sides of the fixing frame (4), a first motor (6) is fixedly mounted on the rear side of the mounting plate (5), a driving shaft (7) is fixedly mounted on the output end of the first motor (6), a sliding frame (8) is fixedly mounted at the four corners between the inner sides of the mounting plate (5), and a sliding block (9) is slidably mounted between the inner sides of the sliding frame (8).

3. A carrying device for optical detection of PCB circuit boards according to claim 2, characterized in that: A rotating shaft (10) is rotatably mounted at four corners of the inner side of the mounting plate (5), and a transmission gear (12) is fixedly mounted on the outer side of the rotating shaft (10) and the driving shaft (7), and adjacent transmission gears (12) are meshed with each other.

4. A carrying device for optical detection of PCB circuit boards according to claim 3, characterized in that: An annular groove is provided on the inner side of the sliding block (9), and a tooth groove is provided on one side of the annular groove. A driving gear (11) is fixedly mounted on the outer side of the rotating shaft (10), and the driving gear (11) meshes with an adjacent tooth groove.

5. A carrying device for optical detection of PCB circuit boards according to claim 2, characterized in that: A clamping block (13) is fixedly installed on the outer side of the sliding block (9), a clamping groove is opened on one side of the clamping block (13), and a sponge protective pad is arranged on the inner side of the clamping groove. A sliding rod (25) is slidably installed between one side of the clamping block (13), and springs (26) are fixedly installed on the left and right sides between one side of the clamping block (13), and a clamping plate (27) is fixedly installed on the other end of the sliding rod (25) and the spring (26).

6. A carrying device for optical inspection of PCB circuit boards according to claim 1, characterized in that: A rotating disk (14) is fixedly mounted on the top of the fixed base (1), a second motor (15) is fixedly mounted between the inner sides of the fixed base (1), a fixed shaft (16) is fixedly mounted on the output end of the second motor (15), a movable gear (17) is fixedly mounted on the outer side of one end of the fixed shaft (16), a tooth groove is provided on the outer side of the rotating disk (14), and the movable gear (17) meshes with adjacent tooth grooves.

7. A carrying device for optical inspection of PCB circuit boards according to claim 6, characterized in that: A support frame (18) is fixedly mounted on the top of the turntable (14); a mounting shaft (19) is rotatably mounted on the inner side of the support frame (18); a worm gear (20) is fixedly mounted on the outer side of the mounting shaft (19); a protective cover (21) is fixedly mounted on one side of the support frame (18); a third motor (22) is fixedly mounted on one side of the protective cover (21); a worm (23) is fixedly mounted on the output end of the third motor (22); the worm (23) and the worm gear (20) are meshed; and a fixing plate (24) is fixedly mounted on the outer side of the mounting shaft (19).

8. A carrying device for optical inspection of PCB circuit boards according to claim 7, characterized in that: The outer side of the fixing plate (24) is provided with a mounting groove, the outer diameter of the mounting shaft (19) is the same as the inner diameter of the mounting groove, and the fixing frame (4) is fixedly mounted on the top of the fixing plate (24).

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