WO2021088330A1

WO2021088330A1 - Material-conveying device, and pcb production system therewith

Info

Publication number: WO2021088330A1
Application number: PCT/CN2020/086899
Authority: WO
Inventors: 赵凌云; 吕敏; 宋卫华; 李景涛; 蓝翔
Original assignee: 南京协辰电子科技有限公司
Priority date: 2019-11-06
Filing date: 2020-04-25
Publication date: 2021-05-14
Also published as: CN110844586A

Abstract

Disclosed is a material-conveying device, comprising: a conveying mechanism (1); material storage mechanisms respectively arranged at at least one end of the conveying mechanism (1) in a conveying direction; and a taking and placing mechanism (3) moving along the conveying mechanism (1), wherein the taking and placing mechanism (3) comprises at least two material temporary storage areas, the material temporary storage areas comprising a feeding temporary storage area (31) and a return material temporary storage area (32). Any temporary storage area can achieve temporary storage in feeding and returning processes. If feeding needs to be carried out for two production apparatuses, the conveying mechanism (1) only needs to drive the taking and placing mechanism (3) to sequentially move to a position close to the corresponding production apparatus, materials in the feeding temporary storage area (31) are placed in the corresponding apparatus, and the material-conveying device is coordinated with a plurality of production apparatuses to realize production line cooperation, such that the production efficiency is improved.

Description

A material conveying device and PCB production system

Technical field

The invention relates to the technical field of material transportation, in particular to a material conveying device and a PCB production system.

Background technique

The circuit board can be called a printed circuit board or a printed circuit board. The English name is (Printed Circuit Board) PCB, (Flexible Printed Circuit board) FPC circuit board (FPC circuit board is also called flexible circuit board). Or polyester film as a base material, a highly reliable, excellent flexible printed circuit board. It has the characteristics of high wiring density, light weight, thin thickness, and good flexibility.) and soft and hard Combination board (reechas, Soft and hard combination plate)-The birth and development of FPC and PCB, gave birth to the new product of soft and hard combination plate. Therefore, the rigid-flex board is the flexible circuit board and the rigid circuit board. After pressing and other processes, they are combined according to the relevant process requirements to form a circuit board with FPC characteristics and PCB characteristics.

With the development of production and processing, in the automated production of circuit board inspection, it is necessary to produce, process, inspect or test circuit boards. In the prior art, people use manual picking and placing of circuit boards. Placement is restricted by production site and personnel, and it is prone to problems such as placement errors and low efficiency.

Chinese patent document CN206906539U discloses an automatic loading and unloading mechanism for multiple flying probe testers and a flying probe test production line, including: a base, a manipulator mobile platform that can slide on the base, a manipulator fixed on the manipulator mobile platform, The conveyor for the board to be tested and the conveyor for the tested board are arranged on one side of the base. The tested board conveyor is divided into a qualified board conveyor and a failed board conveyor; the qualified board conveyor is used to transfer the circuit boards that have passed the flying probe test, and the unqualified board conveyor is used to transfer the circuits that have passed the flying probe test. board. Before the flying probe tester starts testing the circuit board, it is necessary to place the circuit board to be tested on the conveyor to be tested in advance, and transfer it to the designated position through the conveyor to be tested, and then the manipulator grabs the circuit board to be tested at the designated position. And feed into the flying probe test machine. When the flying probe tester finishes testing the circuit board, it will send out a signal corresponding to whether the circuit board is a qualified or unqualified circuit board. According to the above signal, the robot will take out the circuit board from the flying probe tester and put it in a qualified circuit board. On board conveyor or unqualified board conveyor.

However, the above flying probe test production line is in the process of picking and placing circuit boards, from the perspective of the robot's action, when loading materials, the timing of placing the board to be tested on the conveyor to be tested and the robot at the designated position from the conveyor to be tested The timing of taking out the circuit board needs to correspond to each other. When blanking, it needs to be placed separately according to different types of circuit boards. Therefore, if there are multiple flying probe testers on a production line to test multiple circuit boards at the same time, for example, When there are two testers that require circuit board testing, two circuit boards need to be placed on the transmission to be tested. If the previous circuit board to be tested does not leave the transmission to be tested, the subsequent circuit board to be tested cannot be placed on the transmission to be tested. As a result, the production efficiency of the test production line is greatly reduced, and the production line cannot achieve the separate coordination of the institutions required by multiple test machines.

Summary of the invention

Therefore, the technical problem to be solved by the present invention lies in the circuit board production line in the prior art. When the conveyor to be tested is loaded, another circuit board cannot be loaded on the conveyor to be tested, so the circuit is greatly reduced. The problem of the production efficiency of the board production line.

To this end, the present invention provides a material conveying device, including:

Conveying mechanism

Material storage mechanisms are respectively provided at at least one end of the conveying mechanism along the conveying direction;

The pick-and-place mechanism moves along the conveying mechanism. The pick-and-place mechanism includes at least two material temporary storage areas, and the material temporary storage area includes a material loading temporary storage area and a material return temporary storage area.

Optionally, the above-mentioned material conveying device and material storage mechanism include a loading unit for storing unprocessed materials and a material returning unit for storing processed materials. The loading unit and the returning unit are respectively arranged in the conveying direction. Both ends of the conveying mechanism.

Optionally, in the above-mentioned material conveying device, the feeding unit and the returning unit are any one of a placing rack or an AGV trolley.

Optionally, in the above-mentioned material conveying device, the feeding unit and the returning unit are integrally provided with the pick-and-place mechanism.

Optionally, in the above-mentioned material conveying device, the conveying mechanism has a track extending along the conveying direction;

And a drive assembly that drives the pick-and-place mechanism to move along the track.

Optionally, in the above-mentioned material conveying device, the drive assembly includes a driver and a transmission unit, the driver is provided on the track, and the transmission unit is connected to the pick-and-place mechanism.

Optionally, in the above-mentioned material conveying device, the conveying mechanism is a moving auxiliary component that moves along the conveying direction, and the moving auxiliary component has a driving wheel and a driver, and the driving wheel is driven by the driver to roll in the conveying direction. Set up.

Optionally, in the aforementioned material conveying device, the pick-and-place mechanism includes:

Carrier

A manipulator, one end of which is fixedly connected to the carrier and has at least two mechanical arms connected to each other;

The suction component is arranged on the end of the manipulator away from the carrier.

Optionally, in the material conveying device described above, the suction assembly includes at least one revolving arm connected to the mechanical arm, and a suction cup fixedly connected to the revolving arm, and the suction cup is connected to the negative pressure generator. The connection is arranged to form a negative pressure on the suction cup side under the drive of the negative pressure generator, and the material moves synchronously with the suction assembly under the action of the negative pressure.

A PCB production system, including:

PCB production equipment, where the PCB production equipment is used to process the material;

The material conveying device is the material conveying device according to any one of claims 1-8;

The PCB production equipment is arranged on at least one side of the material conveying device.

Optionally, in the above-mentioned PCB production system, the PCB production equipment includes a docking end for materials to pass in and out.

Optionally, in the aforementioned PCB production system, the PCB production equipment is separately arranged on both sides of the track of the material conveying device.

The technical solution provided by the present invention has the following advantages: the material conveying device provided by the present invention includes a conveying mechanism, a material storage mechanism, and a pick-and-place mechanism. Wherein, the material storage mechanism is respectively arranged at at least one end of the conveying mechanism along the conveying direction; the pick-and-place mechanism moves along the conveying mechanism, the pick-and-place mechanism includes at least two material temporary storage areas, and the material is temporarily stored The area includes a temporary storage area for loading materials and a temporary storage area for returning materials.

When the material conveying device of this structure needs to be placed in multiple production facilities for the production and processing of plates, only the pick-and-place mechanism needs to take out the material from the material storage mechanism and store it in the temporary storage area for the material, and then the pick-and-place mechanism will The materials in the loading temporary storage area are sequentially placed in different production equipment according to actual needs. Accordingly, during the unloading process, the pick-and-place mechanism can first store the materials in the return temporary storage area. When the unloading time permits, Place the materials in the temporary storage area of the returned material back into the material storage mechanism; the setting of any of the above temporary storage areas can ensure that the conveying mechanism does not need to go back and forth between multiple production equipment and the material storage mechanism multiple times, any temporary storage The zone can realize buffering during the loading and return process. For example, if two production equipments need to be loaded, the conveying mechanism only needs to drive the pick-and-place mechanism to move to the corresponding production equipment in turn, and temporarily store the loading The materials in the area can be placed in the corresponding equipment, and the material conveying device can be coordinated with multiple production equipment to realize the production line coordination, which greatly improves the production efficiency.

Description of the drawings

In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the specific embodiments or the description of the prior art. Obviously, the appendix in the following description The drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

Figure 1 is a schematic diagram of the structure of the PCB production system provided in Embodiment 1;

2 is a schematic diagram of the cooperative structure of the pick-and-place mechanism and the conveying mechanism provided in Embodiment 1;

FIG. 3 is a schematic diagram of the PCB production system provided in Embodiment 1 during operation;

Description of reference signs:

1- conveying mechanism; 11-track; 12-drive; 13-transmission unit;

21-feeding unit; 22-returning unit;

3-Pick-and-place mechanism; 31-feeding temporary storage area; 32-returning temporary storage area; 33-carriage table; 34-manipulator; 35-suction component;

4-PCB production equipment.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the pointed device or element must have a specific orientation or a specific orientation. The structure and operation cannot therefore be understood as a limitation of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance.

In the description of the present invention, it should be noted that the terms "installed", "connected", and "connected" should be understood in a broad sense unless otherwise clearly specified and limited. For example, they can be fixed or detachable. Connected or integrally connected; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above-mentioned terms in the present invention can be understood in specific situations.

In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

Example 1

This embodiment provides a PCB production system, as shown in Figs. 1 and 2, including: PCB production equipment 4 and a material conveying device. Among them, the PCB production equipment 4 is used to process materials; the material conveying device and the electrical measuring equipment are arranged on both sides of the material conveying device. The PCB production equipment 4 includes a docking terminal for materials to enter and exit. For example, in this embodiment, the PCB production device 4 may specifically be a PCB board electrical testing device, which is used to perform electrical testing on the PCB board at the input docking end.

The material conveying device provided in this embodiment includes a conveying mechanism 1, a material storage mechanism, and a pick-and-place mechanism 3. Among them, the material storage mechanism is respectively arranged at both ends of the conveying mechanism 1 along the conveying direction; the pick-and-place mechanism 3 moves along the conveying mechanism 1, and the pick-and-place mechanism 3 is used to grab the materials stored on the material storage mechanism.

In this embodiment, the above-mentioned conveying mechanism 1 has a track 11 extending along the conveying direction; and a drive assembly that drives the pick-and-place mechanism 3 to move along the track 11. The driving assembly includes a driver 12 and a transmission unit 13, the driver 12 is arranged on the track 11, and the transmission unit 13 is connected with the pick-and-place mechanism 3. For example, in this embodiment, the transmission unit 13 is a gear fixedly arranged with the carrier 33 of the pick-and-place mechanism 3 and a rack arranged along the length of the track 11. Driven by the driver 12, the gear rotates to drive the pick-and-place The mechanism 3 moves along the extending direction of the rack. The gears and racks are meshed for transmission to ensure the stability of mechanical transmission. The driver 12 in this embodiment is a driving motor. Wherein, the PCB production equipment 4 is separately arranged on both sides of the rail 11 of the material conveying device. For example, in this embodiment, there are 10 PCB production devices 4, which are separately arranged on both sides of the track 11, and 5 PCB production devices 4 are provided on each side.

As shown in Figure 2, the pick-and-place mechanism 3 includes a carrier 33, a manipulator 34, a suction assembly 35, and two material temporary storage areas. The material temporary storage area and the manipulator 34 are both set on the carrier 33, and the manipulator 34 has multiple material storage areas. Two mechanical arms are connected to each other, and the suction assembly 35 is fixedly connected to the end of the manipulator 34 away from the carrier 33. The aforementioned material temporary storage area includes a material loading temporary storage area 31 and a returned material temporary storage area 32. The loading temporary storage area 31 and the returned temporary storage area 32 are respectively arranged on both sides of the manipulator 34. For example, the suction assembly 35 is provided on the robot hand 34. In this embodiment, the suction assembly 35 includes a revolving arm connected to the mechanical arm, and a suction cup fixedly connected to the revolving arm. The suction cup is connected to a negative pressure generator, and a negative pressure is formed on the suction cup side under the drive of the negative pressure generator. The material moves synchronously with the suction assembly 35 under the action of negative pressure.

The material storage mechanism includes a feeding unit 21 for storing unprocessed materials and a feeding unit 22 for storing processed materials. The feeding unit 21 and the feeding unit 22 are respectively arranged at both ends of the conveying mechanism 1 along the conveying direction. The feeding unit 21 and the returning unit 22 are AGV (Automated Guided Vehicle) carts. Each AGV trolley can be set back and forth on different production stations to drag the load-bearing platforms on different production stations.

As shown in Figure 3, if each PCB production equipment detects circuit boards with different material numbers, for example, L1 equipment detects circuit boards with N1 material numbers, for example, L2 equipment detects circuit boards with N2 material numbers...Ln equipment detects Nn material numbers Circuit board. For example, in this embodiment, there are 10 detection devices corresponding to the detection of 10 circuit boards of material numbers.

If it is necessary to load the circuit boards of the two material numbers N5 and N6 on the two equipments of L5 and L6, the AGV trolley set on the feeding side first drags the bearing platform with N5 and N6 from the previous station in turn, and the manipulator Grab the N5 part number circuit board and place it on the loading temporary storage area. Then, the AGV trolley has the N6 loading platform close to the loading side of the guide rail, and then place the N6 part number circuit board in the loading temporary storage area Then, the manipulator is driven by the transmission assembly to move to the corresponding positions of the L5 and L6 devices. The manipulator sucks the N5 and N6 circuit boards to reclaim and place them on the temporary storage area for the return material, and then place them in accordance with the placement of N5 and N6. Load N5 and N6 in sequence, and then move the manipulator to the discharge side of the track. The AGV trolley on the discharge side drags the N5 and N6 loading tables of the next station to the discharge side respectively, and the manipulator pulls N5 and N6 respectively. N6 is placed on the corresponding material carrier, and then the two equipment on the production line can be replaced with materials.

The above-mentioned loading temporary storage area and return temporary storage area can respectively be boards with multiple tables, such as two, three or more. The number of boards set can be based on the actual equipment to detect the detection of the circuit board. Time and other considerations are set up to ensure the orderly placement of multiple different material numbers to avoid the occurrence of incompatible circuit board material numbers with the testing equipment; of course, all circuit boards can also be arranged in sequence according to the subsequent movement position of the manipulator Stacked, for example, if the robot moves to the equipment positions L2, L5, and L10 in sequence, the stacking sequence of the loading temporary storage area can be N10, N5, and N2 from bottom to top, and the corresponding AGV trolley of the loading unit The order of the circuit board on the drag loading stage is N10, N5, and N2, and so on.

In an alternative embodiment, when only two or more devices need to be loaded or only two or more devices need to be unloaded, the application of the foregoing manners and methods can also be implemented, and is not limited to specific implementation conditions.

In an alternative embodiment, for example, if L1 and L2 are loaded, taking L1 as an example, the manipulator does not need to place the material of the loading unit 21 in the loading temporary storage area, and then load the material The material in the temporary storage area is loaded to the L1 equipment, and the robot can directly feed the N1 in the feeding unit to L1; similarly, when feeding L9 and L10, there is no need to pass N9 or N10 through The temporary storage area is used for unloading, and the unloading unit is directly used for unloading by the manipulator.

In addition, in some application scenarios, if each PCB production equipment detects circuit boards of the same material number, the type of the circuit board carrier of the previous station dragged by the AGV trolley and the circuit board placed on the material There is no need to consider the order of the temporary storage area and the order of the corresponding robot to pick up the circuit board. It only needs to ensure that the number of circuit boards in the temporary storage area is greater than or equal to that of the equipment in each device on the production line. The number of material circuit boards is sufficient.

When the material conveying device provided in this embodiment needs to be placed in multiple production facilities for plate production and processing testing, only the pick-and-place mechanism 3 needs to take out the material from the material storage mechanism and store it in the material loading temporary storage area 31, and then The pick-and-place mechanism 3 places the materials in the loading temporary storage area 31 in different production equipment according to actual needs. Accordingly, during the unloading process, the pick-and-place mechanism 3 can first store the materials in the return temporary storage area 32 When the unwinding time permits, put the materials in the temporary storage area 32 back into the material storage mechanism; the setting of any of the above temporary storage areas can ensure that the conveying mechanism 1 does not need to go back and forth between multiple production equipment and multiple production equipment multiple times. Between the material storage institutions, any temporary storage area can realize buffering during the feeding and returning process. For example, if two production equipment need to be loaded, the conveying mechanism 1 only needs to drive the pick-and-place mechanism 3 to move to Place the materials in the loading temporary storage area 31 in the corresponding equipment near the corresponding production equipment, and realize the coordination of the material conveying device with multiple production equipment to realize the production line coordination, which greatly improves the production efficiency.

Example 2

This embodiment provides a PCB production system. Compared with the PCB production system provided in Embodiment 1, the difference is that in this embodiment, the feeding unit 21 and the returning unit 22 are not AGV carts. The placement rack can be movably set, that is, the PCB board can be placed in the placement rack through various placements such as mechanical automatic or manual placement. In this embodiment, the placing racks of the feeding unit 21 and the returning unit 22 have several placing positions, and the several placing positions can store multiple PCB boards, and the two placing racks can be detachably arranged at both ends of the guide rail. Of course, in other embodiments, the two placing racks of the feeding unit 21 and the feeding unit 22 can also be integrally arranged at both ends of the guide rail.

Example 3

This embodiment provides a PCB production system. Compared with the PCB production system provided in Embodiment 1 or Embodiment 2, the difference is that the conveying mechanism 1 is a mobile auxiliary component that moves along the conveying direction. The assembly has a driving wheel and a driver 12, and the driving wheel is driven by the driver 12 to roll along the conveying direction. For example, it may be a movable frame body to ensure that the driver 12 is instructed to move to the side of the production equipment corresponding to the PCB board to be picked and placed, so as to realize the pick-and-place mechanism 3 to pick and place the PCB board.

Example 4

This embodiment provides a PCB production system. Compared with the PCB production system provided in any one of Embodiments 1 to 3, the difference is that: in this embodiment, the conveying direction can be a wavy line. , Serpentine or U-shaped. For example, when the conveying direction is U-shaped, the loading unit 21 and the unloading unit are set on the same side of the production line. As long as the drive of the conveying mechanism 1 is ensured, the pick-and-place mechanism 3 performs processing on the PCB board. Loading and unloading can be done.

Example 5

This embodiment provides a PCB production system. Compared with the PCB production system provided in any one of Embodiments 1 to 4, the difference lies in the way in which the pick-and-place mechanism 3 picks and places the circuit board. Changed, instead of picking up components, the circuit board is grasped by the gripping claws of the manipulator. For example, the gripping claws of the manipulator clamp the circumference of the circuit board, or clamp at least two ends of the circuit board. Edges or corners are clamped. The above-mentioned manipulator clamping method can ensure the stability of the pick-and-place mechanism to grasp, avoid falling during the process of transferring the circuit board, and further improve the production efficiency.

Of course, in other embodiments, the circuit board can also be placed by supporting the material on the supporting placement surface, etc., as long as it is ensured that the circuit board is transported back and forth between the material storage mechanism and the production equipment.

Example 6

This embodiment provides a PCB production system. Compared with the PCB production system provided in any one of Embodiments 1 to 5, the difference lies in:

In this embodiment, the PCB board production equipment can also be applied to PCB board processing equipment, such as printed circuit board manufacturing equipment. It can also be used in the production process for multiple PCB board processing equipment to achieve multiple The processing equipment performs loading and unloading actions to ensure the stability of processing and production and improve processing efficiency. Obviously, the foregoing embodiments are merely examples for clear description, and are not intended to limit the implementation manner. For those of ordinary skill in the art, other changes or modifications in different forms can be made on the basis of the above description. It is unnecessary and impossible to list all the implementation methods here. The obvious changes or changes derived from this are still within the protection scope created by the present invention.

Claims

A material conveying device, which is characterized in that it comprises

Conveying mechanism (1);

The material storage mechanism is respectively arranged at at least one end of the conveying mechanism (1) along the conveying direction;

The pick-and-place mechanism (3) moves along the conveying mechanism (1), the pick-and-place mechanism (3) includes at least two material temporary storage areas, and the material temporary storage area includes a material temporary storage area (31) and Return material temporary storage area (32).
The material conveying device according to claim 1, wherein the material storage mechanism includes a loading unit (21) for storing untreated materials and a material returning unit (22) for storing processed materials, the loading unit (21) and the return unit (22) are respectively arranged at both ends of the conveying mechanism (1) along the conveying direction.
The material conveying device according to claim 2, characterized in that:

The feeding unit (21) and the feeding unit (22) are any one of a placing rack or an AGV trolley.
The material conveying device according to claim 2, characterized in that:

The feeding unit (21) and the feeding unit (22) are integrally arranged with the picking and placing mechanism (3).
The material conveying device according to any one of claims 1-4, wherein the conveying mechanism (1) has a track (11) extending along the conveying direction;

And a drive assembly that drives the pick-and-place mechanism (3) to move along the track (11).
The material conveying device according to claim 5, wherein:

The driving assembly includes a driver (12) and a transmission unit (13), the driver (12) is arranged on the rail (11), and the transmission unit (13) is connected with the pick-and-place mechanism (3).
The material conveying device according to any one of claims 1 to 4, characterized in that:

The conveying mechanism (1) is a moving auxiliary component that moves along the conveying direction, and the moving auxiliary component has a driving wheel and a driver (12), and the driving wheel is driven by the driver (12) to roll along the conveying direction. .
The material conveying device according to any one of claims 1 to 4, characterized in that the pick-and-place mechanism (3) comprises:

Carrier (33);

A manipulator (34), one end of which is fixedly connected to the carrier (33), and has at least two mechanical arms connected to each other;

The suction assembly (35) is arranged on the end of the manipulator (34) away from the carrier (33).
The material conveying device according to claim 8, wherein the suction assembly (35) comprises at least one rotary arm connected to the mechanical arm, and a suction cup fixedly connected to the rotary arm, so The suction cup is connected with the negative pressure generator, a negative pressure is formed on the suction cup side under the drive of the negative pressure generator, and the material moves synchronously with the suction assembly (35) under the action of the negative pressure.
A PCB production system is characterized in that it includes:

PCB production equipment (4), the PCB production equipment (4) is used to process the material;

The material conveying device is the material conveying device according to any one of claims 1-8;

The PCB production equipment (4) is arranged on at least one side of the material conveying device.
The PCB production system according to claim 10, characterized in that the PCB production equipment (4) comprises a docking end for materials to pass in and out.
The PCB production system according to claim 10, characterized in that the PCB production equipment (4) is separately arranged on both sides of the rail (11) of the material conveying device.