CN219116468U

CN219116468U - Feeding mechanism for automatic detection of PCB (printed circuit board)

Info

Publication number: CN219116468U
Application number: CN202222830937.4U
Authority: CN
Inventors: 朱淑霞
Original assignee: Express Electronics Suzhou Co ltd
Current assignee: Express Electronics Suzhou Co ltd
Priority date: 2022-10-26
Filing date: 2022-10-26
Publication date: 2023-06-02
Anticipated expiration: 2032-10-26

Abstract

The utility model relates to a feeding mechanism for automatic detection of a PCB (printed Circuit Board), which comprises a conveying belt, a plate lifting device and a plate transplanting device, wherein the plate lifting device and the plate transplanting device are arranged at the feeding end of the conveying belt, the plate transplanting device comprises a main sliding column vertically arranged at the feeding end of the conveying belt, a top plate arranged at the top of the main sliding column, a main lifting seat in sliding fit with the main sliding column, a horizontal sliding mechanism arranged on the main lifting seat, a vacuum chuck frame arranged on the horizontal sliding mechanism, and a lifting cylinder arranged on the top plate and used for driving the main lifting seat to lift, the sliding direction of the horizontal sliding mechanism is parallel to the conveying direction of the conveying belt, a pressing plate seat is elastically connected to the main lifting seat, a pressing plate roller is rotationally connected to the pressing plate seat, and the pressing plate roller is positioned right above a belt at the feeding end of the conveying belt. According to the utility model, the pressing plate roller which is lifted along with the main lifting seat is adopted to press the PCB when the PCB is placed at the feeding end of the conveying belt, so that the PCB is not required to be completely carried onto the conveying belt, the stroke of the main lifting seat is effectively shortened, and the feeding efficiency is improved.

Description

Feeding mechanism for automatic detection of PCB (printed circuit board)

Technical Field

The utility model relates to PCB detection equipment, in particular to a feeding mechanism for automatic detection of a PCB.

Background

PCB (Printed Circuit Board) the Chinese name printed circuit board, also called printed circuit board, is an important electronic component, is a support for electronic components, and is a carrier for electrically interconnecting electronic components. It is called a "printed" circuit board because it is made using electronic printing. Almost every electronic device, as small as an electronic watch, a calculator, as large as a computer, a communication electronic device, a military weapon system, has only electronic components such as an integrated circuit, and a printed board is used for electrically interconnecting the respective components. The printed circuit board consists of an insulating base plate, connecting wires and bonding pads for assembling and welding electronic elements, and has the dual functions of a conductive circuit and the insulating base plate. The wiring device can replace complex wiring, realizes electric connection among elements in a circuit, simplifies assembly and welding work of electronic products, reduces wiring workload in a traditional mode, and greatly lightens labor intensity of workers; and the whole volume is reduced, the product cost is reduced, and the quality and the reliability of the electronic equipment are improved. The printed circuit board has good product consistency, can adopt standardized design, and is favorable for realizing mechanization and automation in the production process. Meanwhile, the whole printed circuit board subjected to assembly and debugging can be used as an independent spare part, so that the whole machine product can be conveniently exchanged and maintained. At present, the printed wiring board has been extremely widely applied to the production and manufacture of electronic products.

Because the development of the electronic industry, the precision degree of the PCB is higher and higher, the PCB is also tighter and tighter, in order to ensure the normal use of the PCB, the PCB is required to be detected during production, the existing detection mode is usually manually detected, and the efficiency is lower and the false detection is easy when the PCB is detected, so that the automatic PCB detection device is invented. The existing automatic PCB detection equipment adopts an automatic feeding device, the existing automatic feeding device generally adopts vacuum chucks moving along two shafts to place PCBs on a conveying belt one by one, and in order to ensure that PCBs are smoothly placed on the conveying belt, PCBs are required to be completely carried above the conveying belt, the mode leads to long stroke of the vacuum chucks, and the feeding efficiency is low.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide a feeding mechanism for automatic detection of a PCB.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides an automatic feed mechanism for detecting of PCB board, includes the conveyer belt, set up in board hoisting device and the board transplanting device of conveyer belt feed end, board transplanting device including vertical set up in the main traveller of conveyer belt feed end, set up in roof at main traveller top, with main traveller sliding fit's main elevating socket, set up in horizontal sliding mechanism on the main elevating socket, set up in vacuum chuck frame on the horizontal sliding mechanism, set up in be used for the drive on the roof the elevating cylinder that main elevating socket goes up and down, horizontal sliding mechanism's slip direction is on a parallel with the direction of delivery of conveyer belt, elastic connection has the clamp plate seat on the main elevating socket, rotate on the clamp plate seat and be connected with the clamp plate roller, the clamp plate roller is located directly over the belt of conveyer belt feed end.

The clamp plate roller that adopts following main lifting seat to go up and down in above-mentioned design pushes down PCB when PCB places the conveyer belt feed end, need not to carry the PCB completely to the conveyer belt on, effectively shortens the stroke of main lifting seat, promotes material loading efficiency.

As a further improvement of the design, the plate lifting device comprises a guide plate arranged at the feeding end of the conveying belt, a carrier plate seat sliding along the guide plate, and a screw lifting mechanism driving the carrier plate seat to lift along the guide plate. The lead screw lifting mechanism is convenient for gradually lifting stacked PCBs, so that the vacuum chuck frame can absorb the PCBs conveniently, the lifting stroke of the vacuum chuck frame is shortened, and the efficiency is further improved.

As a further improvement of the design, the guide plate is an inclined plate, the inclined direction of the guide plate extends from the belt feeding end of the conveying belt to the direction of the belt discharging end of the conveying belt, the top of the carrier plate seat is a carrier plate platform, the top surface of the carrier plate platform is an inclined surface, and the top surface of the carrier plate seat faces towards one side of the guide plate and is lower than the other side of the guide plate. The PCB board is convenient to tilt and beat to the guide plate under the action of gravity.

As a further improvement of the design, the horizontal sliding mechanism is a rodless cylinder, and is simple in structure and high in efficiency.

As a further improvement of the design, the rodless cylinder is provided with a buffer spring towards the feeding end of the conveying belt, namely, the buffer spring is compressed to play a buffer role when the rodless cylinder moves towards the direction of the conveying belt. The buffer spring is convenient for buffer when the rodless cylinder runs to the end of the stroke, so that the PCB is prevented from accidentally falling, and the PCB is prevented from being bumped due to contact with the material pressing roller when the PCB is fed into the conveying belt.

As a further improvement of the design, the pressing plate seat is in sliding connection with the main lifting seat through a guide pillar, a tension spring is sleeved on the guide pillar, and downward pressure is applied to the pressing plate seat by the tension spring. The tension spring is convenient for compensating the inconsistent lifting travel of the main lifting seat on the pressing plate roller.

As the further improvement of this design, carrier plate platform top surface distributes there is the gyro wheel, is convenient for reduce the frictional force of PCB and carrier plate platform, and the PCB of being convenient for beats and neat.

The beneficial effects of the utility model are as follows: according to the utility model, the pressing plate roller which is lifted along with the main lifting seat is adopted to press the PCB when the PCB is placed at the feeding end of the conveying belt, so that the PCB is not required to be completely carried onto the conveying belt, the stroke of the main lifting seat is effectively shortened, and the feeding efficiency is improved.

Drawings

The utility model will be further described with reference to the drawings and examples.

Fig. 1 is a schematic view of the overall cross-sectional structure of the present utility model.

Fig. 2 is a partial schematic view of the plate lifting device of the present utility model.

In the figure, a conveyor belt 1, a main sliding column 2, a pressing plate roller 3, a pressing plate seat 4, a guide pillar 5, a tension spring 6, a buffer spring 7, a lifting cylinder 8, a top plate 9, a horizontal sliding mechanism 10, a main lifting seat 11, a vacuum chuck frame 12, a carrier plate seat 13, a lead screw lifting mechanism 14, a guide plate 15, a carrier plate platform 16 and a roller 17.

Detailed Description

The present utility model will now be described in detail with reference to the drawings and the specific embodiments thereof, wherein the exemplary embodiments and the description are for the purpose of illustrating the utility model only and are not to be construed as limiting the utility model.

Examples: referring to fig. 1, a feeding mechanism for automatic detection of PCB boards comprises a conveying belt 1, a board lifting device and a board transplanting device, wherein the board lifting device and the board transplanting device are arranged at a feeding end of the conveying belt 1, the board transplanting device comprises a main sliding column 2 vertically arranged at the feeding end of the conveying belt 1, a top plate 9 arranged at the top of the main sliding column 2, a main lifting seat 11 in sliding fit with the main sliding column 2, a horizontal sliding mechanism 10 arranged on the main lifting seat 11, a vacuum chuck frame 12 arranged on the horizontal sliding mechanism 10, and a lifting cylinder 8 arranged on the top plate 9 and used for driving the main lifting seat 11 to lift, the sliding direction of the horizontal sliding mechanism 10 is parallel to the conveying direction of the conveying belt 1, a pressing plate seat 4 is elastically connected to the main lifting seat 11, and a pressing plate roller 3 is rotationally connected to the pressing plate seat 4 and is positioned right above a belt at the feeding end of the conveying belt 1.

The clamp plate roller 3 that adopts following main lifting seat 11 to go up and down in the above-mentioned design pushes down the PCB when PCB places conveyer belt 1 feed end, need not to carry the PCB completely on the conveyer belt 1, effectively shortens the stroke of main lifting seat 11, promotes material loading efficiency.

The plate lifting device comprises a guide plate 15 arranged at the feeding end of the conveyor belt 1, a carrier plate seat 13 sliding along the guide plate 15, and a screw lifting mechanism 14 driving the carrier plate seat 13 to lift along the guide plate 15. The lead screw lifting mechanism 14 is convenient for lifting stacked PCBs step by step, so that the vacuum chuck frame 12 is convenient for sucking the PCBs, the lifting stroke of the vacuum chuck frame 12 is shortened, and the efficiency is further improved.

The deflector 15 is an inclined plate, the inclined direction of the deflector 15 extends from the belt feeding end of the conveyor belt 1 to the downward inclination of the belt discharging end far away from the conveyor belt 1, the top of the carrier plate seat 13 is a carrier plate platform 16, the top surface of the carrier plate platform 16 is an inclined surface, and the top surface of the carrier plate seat 13 faces one side of the deflector 15 to be lower than the other side. The PCB is convenient to tilt towards the guide plate 15 under the action of gravity.

The horizontal sliding mechanism 10 is a rodless cylinder, and has a simple structure and high efficiency.

The rodless cylinder is provided with a buffer spring 7 towards the feeding end of the conveyor belt 1, namely, the buffer spring 7 is compressed to play a buffering role when the rodless cylinder runs towards the conveyor belt 1. The buffer spring 7 is convenient for buffering when the rodless cylinder runs to the end of the stroke, prevents the PCB from falling accidentally, and prevents the PCB from being bumped because the PCB contacts with the material pressing roller when being sent into the conveyer belt 1.

The pressing plate seat 4 is in sliding connection with the main lifting seat 11 through a guide post 5, a tension spring 6 is sleeved on the guide post 5, and downward pressure is applied to the pressing plate seat 4 by the tension spring 6. The tension spring 6 is convenient for compensating the non-uniform lifting travel of the main lifting seat 11 on the pressing plate roller 3.

Referring to fig. 2, rollers 17 are distributed on the top surface of the carrier plate platform 16, so as to reduce friction between the PCB and the carrier plate platform 16 and facilitate the alignment of the PCB.

During operation, place the PCB that stacks on the carrier plate platform, PCB inclines to the deflector one by one under self gravity effect, prevent that PCB from gluing glutinous, vacuum chuck frame descends and absorbs the PCB, then vacuum chuck frame rises to the stroke terminal point, the clamp plate roller follows vacuum chuck frame and rises, horizontal sliding mechanism drive vacuum chuck frame sends the PCB into on the conveyer belt of clamp plate roller below, vacuum chuck descends the clamp plate roller and presses the PCB and follow the conveyer belt operation on the conveyer belt, vacuum chuck continues to descend and absorbs next PCB, repeat above-mentioned action and realize PCB material loading one by one.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. The utility model provides an automatic feed mechanism for detecting of PCB board, includes the conveyer belt, set up in board hoisting device and the board transplanting device of conveyer belt feed end, its characterized in that, board transplanting device including vertical set up in the main traveller of conveyer belt feed end, set up in roof at main traveller top, with main traveller sliding fit's main elevating socket, set up in horizontal sliding mechanism on the main elevating socket, set up in vacuum chuck frame on the horizontal sliding mechanism, set up in be used for the drive on the roof the lift cylinder that main elevating socket goes up and down, horizontal sliding mechanism's slip direction is on a parallel with the direction of delivery of conveyer belt, elastic connection has the clamp plate seat on the main elevating socket, rotate on the clamp plate seat and be connected with the clamp plate roller, the clamp plate roller is located directly over the belt of conveyer belt feed end.

2. The feeding mechanism for automatic detection of the PCB according to claim 1, wherein the plate lifting device comprises a guide plate arranged at the feeding end of the conveying belt, a carrier plate seat sliding along the guide plate, and a screw lifting mechanism driving the carrier plate seat to lift along the guide plate.

3. The feeding mechanism for automatic detection of the PCB board according to claim 2, wherein the guide plate is an inclined plate, the inclined direction of the guide plate extends downwards from the belt feeding end of the conveying belt to the belt discharging end far away from the conveying belt, the top of the carrier plate seat is a carrier plate platform, the top surface of the carrier plate platform is an inclined surface, and the top surface of the carrier plate seat is lower than the other side towards one side of the guide plate.

4. The feeding mechanism for automatic detection of a PCB according to claim 1, wherein the horizontal sliding mechanism is a rodless cylinder.

5. The feeding mechanism for automatic detection of the PCB according to claim 1, wherein the rodless cylinder is provided with a buffer spring towards the feeding end of the conveying belt, namely the buffer spring is compressed to play a role in buffering when the rodless cylinder moves towards the direction of the conveying belt.

6. The feeding mechanism for automatic detection of the PCB according to claim 1, wherein the pressing plate seat is in sliding connection with the main lifting seat through a guide pillar, a tension spring is sleeved on the guide pillar, and downward pressure is applied to the pressing plate seat by the tension spring.

7. The feeding mechanism for automatic detection of the PCB of claim 3, wherein rollers are distributed on the top surface of the carrier plate platform.