Transmission positioning mechanism of circuit board appearance inspection equipment

Abstract

The utility model relates to the technical field of circuit board detection, and provides a transmission positioning mechanism of circuit board appearance inspection equipment, which comprises a side plate, a moving module, a plurality of rollers and a placing plate, two sides of the side plate are fixedly connected with threaded rods, and the moving module is in threaded connection with the threaded rods; the upper surface of the moving module is fixedly connected with a moving frame, the upper surface of the moving frame is fixedly connected with a first air pressure rod, and the output end of the first air pressure rod is fixedly connected with a supporting rod. Through the arrangement of a second air pressure rod, a contact block and a detection device, a circuit board can be clamped at a correct position, through the arrangement of a moving module and a first air pressure rod, the circuit board can be moved in time after being clamped, and through the arrangement of a placing plate and a rotating module, when the circuit board is placed on the upper portion, the circuit board can be conveniently moved. The circuit board can be moved to other positions, and the circuit board is firmly attached to the surface of the placing plate through the arrangement of the negative pressure channel and the negative pressure device.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of circuit board detection, and particularly relates to a transmission positioning mechanism of circuit board appearance inspection equipment. BACKGROUND

[0002] The circuit board appearance inspection equipment is an automatic detection tool used for identifying and detecting various appearance defects of a PCB. It has the characteristics of automatic feeding and discharging, rapid detection, high precision and 24-hour working capacity. When used, the following steps need to be taken: equipment preparation, parameter setting, automatic detection, result analysis and data recording.

[0003] The authorized patent with the application number 202322945080.5 discloses a transmission positioning mechanism of circuit board appearance inspection equipment: the transmission positioning mechanism comprises a conveying assembly, a first alignment assembly and a second alignment assembly. The conveying assembly comprises a rack, a plurality of rollers and a first motor. The rollers are used to support the conveying circuit board. The first alignment assembly comprises a first alignment plate and a first cylinder that drives the first alignment plate to lift. The first alignment plate is located between two adjacent rollers. The first alignment plate is lifted to abut and align the side edge of the circuit board. The first alignment plate is lowered to avoid the passing of the circuit board. The second alignment assembly comprises a second alignment plate, a first push plate and a first power element. The first push plate and the second alignment plate accommodate the passing of the circuit board. The first push plate pushes the circuit board towards the second alignment plate to make the second alignment plate abut and align the side edge of the circuit board. The transmission positioning mechanism of the circuit board appearance inspection equipment can automatically position the circuit board, eliminate manual positioning of the circuit board and improve the efficiency of manual plate placement.

[0004] However, in the implementation of the related technology, the above technical solution has the following problems: when used, the circuit board is lifted and still located directly above the rotating roller, so the circuit board cannot be transferred. When inspected, the inspection device may be difficult to install due to its position, or the inspection device is installed directly above the rotating roller, which may cause the circuit board to be damaged due to accidental falling of the inspection device.

[0005] Therefore, a transmission positioning mechanism of circuit board appearance inspection equipment is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model discloses a transmission positioning mechanism of circuit board appearance inspection equipment, which solves the problems in the related art that when used, the circuit board is lifted and still located directly above the rotating roller, so the circuit board cannot be transferred. When inspected, the inspection device may be difficult to install due to its position, or the inspection device is installed directly above the rotating roller, which may cause the circuit board to be damaged due to accidental falling of the inspection device.

[0007] The utility model discloses a transmission positioning mechanism of circuit board appearance inspection equipment, include: side plate, mobile module, a plurality of rotating roller and placing plate, the both sides fixed connection of side plate have screw rod, mobile module is connected with screw rod screw thread, the upper surface fixed connection of mobile module has the moving frame, the upper surface fixed connection of moving frame has first air pressure rod, the output fixed connection of first air pressure rod has support rod,

[0008] The lower surface fixed connection of support rod has lower bar, the end side fixed connection of lower bar has second air pressure rod, the output fixed connection of second air pressure rod has contact block,

[0009] The lower surface fixed connection of support rod has lower bar, the end side fixed connection of lower bar has second air pressure rod, the output fixed connection of second air pressure rod has contact block,

[0010] The side fixed connection of side plate has rotary module, and the output end of placing plate is fixedly connected in rotary module.

[0011] Preferably, the mobile module includes a housing, an internally threaded sleeve is rotatably connected to the inside of the housing, the internally threaded sleeve is threadedly connected to the outer surface of the threaded rod, one end of the internally threaded sleeve is fixedly connected to a first gear, an inner upper wall of the housing is fixedly connected to a third motor, the output end of the third motor is fixedly connected to a second gear, and the first gear is engaged with the second gear.

[0012] Preferably, the side of the side plate is fixedly connected to a limiting rod, the limiting rod penetrates the mobile module, a negative pressure channel is formed in the inside of the placing plate, one side of the placing plate is fixedly connected to a negative pressure device, and the output end of the negative pressure device is in communication with the negative pressure channel.

[0013] Preferably, the inside of the side plate is fixedly connected to a limiting rail, and the inside of the side plate is fixedly connected to two groups of detection devices.

[0014] Preferably, the rotating roller is rotatably connected to the inner wall of the side plate, the outer wall of the side plate is fixedly connected to a second motor, and the output end of the second motor is fixedly connected to the rotating roller.

[0015] Preferably, the inside of the side plate is fixedly connected to a first motor, the output end of the first motor is fixedly connected to a friction wheel, a baffle is inserted into the inside of the side plate, the friction wheel and the baffle are in contact with each other, the inside of the side plate is fixedly connected to a blocking plate, and the baffle is located at the gap between the two rotating rollers.

[0016] The working principle and beneficial effects of the utility model are as follows:

[0017] Through the setting of the second air pressure rod, the contact block and the detection device, the circuit board can be clamped at the correct position, through the device of the moving module and the first air pressure rod, the circuit board can be moved in time after being clamped, through the setting of the placing plate and the rotating module, when the circuit board is placed on the upper surface, the circuit board can be moved to other positions, through the setting of the negative pressure channel and the negative pressure device, the circuit board can be firmly attached to the surface of the placing plate. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model will be described in further detail below in combination with the drawings and specific embodiments.

[0019] Figure 1 The utility model provides a three-dimensional structure schematic diagram;

[0020] Figure 2 The utility model provides Figure 1 An enlarged structure schematic diagram of A;

[0021] Figure 3 The utility model provides a rear view three-dimensional structure schematic diagram;

[0022] Figure 4 The utility model provides a front view structure schematic diagram;

[0023] Figure 5 The utility model provides a moving module sectional view three-dimensional structure schematic diagram.

[0024] In the drawing: 1, side plate, 2, threaded rod, 3, limiting rod, 4, moving module, 401, shell, 402, internal thread sleeve, 403, first gear, 404, third motor, 405, second gear, 5, moving frame, 6, first air pressure rod, 7, support rod, 8, lower rod, 9, second air pressure rod, 10, contact block, 11, detection device, 12, limiting along, 13, placing plate, 14, negative pressure channel, 15, rotating module, 16, negative pressure device, 17, rotating roller, 18, first motor, 19, friction wheel, 20, baffle, 21, blocking plate, 22, second motor. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are involved in the protection scope of the utility model.

[0026] EMBODIMENT

[0027] Please refer to Figure 15. A transmission positioning mechanism of a circuit board appearance inspection device, comprising: a side plate 1, a moving module 4, a plurality of rotating rollers 17 and a placing plate 13, both sides of the side plate 1 are fixedly connected with threaded rods 2, the moving module 4 is threadedly connected with the threaded rods 2;

[0028] The upper surface of the moving module 4 is fixedly connected with a moving frame 5, the upper surface of the moving frame 5 is fixedly connected with a first air pressure rod 6, the output end of the first air pressure rod 6 is fixedly connected with a supporting rod 7;

[0029] The lower surface of the supporting rod 7 is fixedly connected with a lower rod 8, the end side of the lower rod 8 is fixedly connected with a second air pressure rod 9, the output end of the second air pressure rod 9 is fixedly connected with a contact block 10;

[0030] One side of the side plate 1 is fixedly connected with a rotating module 15, the placing plate 13 is fixedly connected at the output end of the rotating module 15.

[0031] The technical scheme provided by the embodiment is as follows: after the circuit board is conveyed to the rotating rollers 17 by the front conveying device, the detection device 11 detects the circuit board, the second motor 22 starts to pop up the baffle 20, after the baffle 20 is popped up, the circuit board contacts the baffle 20 and is detected by the second group of detection devices 11, then the second air pressure rod 9 pops up and makes the contact block 10 clamp the circuit board, then the first air pressure rod 6 starts to lift the circuit board, then the third single machine 404 is started, the third motor 404 drives the first gear 403 to rotate and drives the second gear 405 to rotate, the rotation of the second gear 405 drives the inner thread sleeve 402 to rotate, the cooperation of the inner thread sleeve 402 and the threaded rod 2 makes the moving module 4 move, after moving to the preset position, the second air pressure cylinder 9 is retracted, the circuit board is placed on the placing plate 13, and the negative pressure device 16 is started, the negative pressure generated by the negative pressure device 16 acts on the contact surface of the circuit board and the placing plate 13 through the negative pressure pipeline 14, then the rotating module 15 is started, the circuit board is conveyed to the position where the appearance inspection device inspection point is located, after inspection, the rotating module 15 is rotated, after rotation to the position, the second air pressure rod 9 is output, so that the contact block 10 clamps the circuit board again, then the negative pressure device 16 is closed, then the moving module 4 returns to the initial position, then the first air pressure rod 6 is retracted, then the second air pressure rod 9 is retracted, so that the circuit board is placed on the rotating rollers 17 again and is conveyed to the next station.

[0032] Further, the moving module 4 comprises an outer shell 401, the inner thread sleeve 402 is rotatably connected in the inner shell 401, the inner thread sleeve 402 is threadedly connected with the outer surface of the threaded rod 2, one end of the inner thread sleeve 402 is fixedly connected with the first gear 403, the third motor 404 is fixedly connected with the inner upper wall of the outer shell 401, the output end of the third motor 404 is fixedly connected with the second gear 405, and the first gear 403 is engaged with the second gear 405.

[0033] Specifically, the third motor 404 is arranged with two gears, so that the inner threaded sleeve 402 can rotate, and through the cooperation between the inner threaded sleeve 402 and the threaded rod 2, the moving module 4 can move linearly.

[0034] Further, one side of the side plate 1 is fixedly connected with a limiting rod 3, the limiting rod 3 penetrates through the moving module 4, the inside of the placing plate 13 is provided with a negative pressure channel 14, one side of the placing plate 13 is fixedly connected with a negative pressure device 16, and the output end of the negative pressure device 16 is in communication with the negative pressure channel 14.

[0035] Specifically, the limiting rod 3 avoids accidental movement of the moving module 4 during work, so that the first air pressure rod 6 is always in a vertical state, and the negative pressure channel 14 is arranged in the inside of the placing plate 13, so that the circuit board can be closely attached to the surface of the placing plate 13.

[0036] Further, the inner side of the side plate 1 is fixedly connected with a limiting edge 12, and the inner side of the side plate 1 is fixedly connected with two groups of detection devices 11.

[0037] Specifically, the limiting edge 12 can make the circuit board in a parallel state with the limiting edge 12, so that clamping is more effective.

[0038] Further, the rotating roller 17 is rotatably connected to the inner wall of the side plate 1, the outer wall of the side plate 1 is fixedly connected with a second motor 22, and the output end of the second motor 22 is fixedly connected with the rotating roller 17.

[0039] Specifically, the second motor 22 provides power for the rotating roller 17, so that the conveying of the circuit board is more smooth.

[0040] Further, the inside of the side plate 1 is fixedly connected with a first motor 18, the output end of the first motor 18 is fixedly connected with a friction wheel 19, the inside of the side plate 1 is inserted with a baffle 20, the friction wheel 19 and the baffle 20 are in contact with each other, the inside of the side plate 1 is fixedly connected with a blocking plate 21, and the baffle 20 is located at the gap between the two rotating rollers 17.

[0041] Specifically, the friction wheel 19 and the baffle 20 are in contact with each other, so that the baffle 20 can be popped out more quickly, and the circuit board is prevented from not being blocked.

[0042] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A drive positioning mechanism of a circuit board appearance inspection apparatus, comprising: The utility model provides a kind of side plate (1), mobile module (4), multiple rotating roller (17) and placing plate (13), characterized by, the both sides of the side plate (1) are fixedly connected with threaded rod (2), the mobile module (4) is threadedly connected with threaded rod (2); The upper surface of the mobile module (4) is fixedly connected with a moving frame (5), the upper surface of the moving frame (5) is fixedly connected with a first air pressure rod (6), the output end of the first air pressure rod (6) is fixedly connected with a support rod (7); The lower surface of the support rod (7) is fixedly connected with a lower rod (8), the end side of the lower rod (8) is fixedly connected with a second air pressure rod (9), the output end of the second air pressure rod (9) is fixedly connected with a contact block (10); One side of the side plate (1) is fixedly connected with a rotating module (15), and the placing plate (13) is fixedly connected to the output end of the rotating module (15).

2. The drive positioning mechanism of a circuit board appearance inspection apparatus according to claim 1, characterized by: The mobile module (4) includes an outer shell (401), an inner threaded sleeve (402) is rotatably connected inside the outer shell (401), the inner threaded sleeve (402) is threadedly connected to the outer surface of the threaded rod (2), one end of the inner threaded sleeve (402) is fixedly connected with a first gear (403), an inner upper wall of the outer shell (401) is fixedly connected with a third motor (404), the output end of the third motor (404) is fixedly connected with a second gear (405), and the first gear (403) is engaged with the second gear (405).

3. The drive positioning mechanism of a circuit board appearance inspection apparatus according to claim 1, characterized by: One side of the side plate (1) is fixedly connected with a limiting rod (3), the limiting rod (3) penetrates the mobile module (4), a negative pressure channel (14) is formed in the placing plate (13), and a negative pressure device (16) is fixedly connected to one side of the placing plate (13).

4. The drive positioning mechanism of a circuit board appearance inspection apparatus according to claim 1, characterized by: The inner side of the side plate (1) is fixedly connected with a limiting rail (12), and two groups of detection devices (11) are fixedly connected to the inner side of the side plate (1).

5. The drive positioning mechanism of a circuit board appearance inspection apparatus according to claim 1, wherein: The rotating roller (17) is rotatably connected to the inner wall of the side plate (1), the outer wall of the side plate (1) is fixedly connected with a second motor (22), and the output end of the second motor (22) is fixedly connected with the rotating roller (17).

6. The drive positioning mechanism of a circuit board appearance inspection apparatus according to claim 1, wherein: The first motor (18) is fixedly connected inside the side plate (1), the output end of the first motor (18) is fixedly connected with a friction wheel (19), a baffle (20) is inserted into the inside of the side plate (1), the friction wheel (19) and the baffle (20) are in contact with each other, a blocking plate (21) is fixedly connected inside the side plate (1), and the baffle (20) is located at the gap between the two rotating rollers (17).

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