JP6779366B2 - Wireless power supply system - Google Patents

Description

The present specification discloses a technique relating to a wireless power supply system in which power is supplied from a fixed device to a movable device by wireless power transfer (contactless power transmission).

For example, in a component mounting board production line in which components are mounted on a circuit board to produce a component mounting board, as described in Patent Document 1 (International Publication WO2014 / 010083), a circuit board transport path is used. Along the line, a plurality of component mounting machines are arranged in a row to form a component mounting board production line, and an automatic replacement device (replacement robot) is provided in a moving lane provided along the front side of these multiple component mounting machines. Is movably installed, and this automatic replacement device is moved to the front of the component mounting machine specified in the production job (production program), etc., and the feeder is set or removed from the feeder set part of the component mounting machine. There is something like that. In this device, the power supply to the automatic switching device is performed by wireless power supply from the component mounting machine side.

In this case, since the voltage of the power power supplied to the drive source of the automatic switching device and the control power supply supplied to the drive control unit that controls the operation of the drive source are different, the power wirelessly supplied from the component mounting machine side is used. The power supply circuit section inside the automatic switching device converts it into two types of power supplies (power power supply and control power supply) with different voltages and supplies them to the drive source and drive control section.

International Publication WO2014 / 010083

Although not described in Patent Document 1, when an operator makes an emergency stop of the automatic switching device during the operation of the component mounting board production line, the operator uses an emergency stop switch provided on the component mounting board production line. It is conceivable that the wireless power supply from the component mounting board production line side to the automatic switching device is cut off.

However, when the wireless power supply to the automatic switching device is cut off, not only the power power supplied to the drive source of the automatic switching device is cut off, but also the control power supply supplied to the drive control unit of the automatic switching device is cut off. When the emergency stop is released and production is resumed, the control power supply to the drive control unit is also turned on again. When the control power is turned on again in the drive control unit, it takes time to restart the system in the drive control unit. Therefore, the system restart is completed after the control power is turned on again, and the automatic switching device can operate. It will take some time before it returns to the system, and the resumption of production will be delayed.

Such a problem is not limited to the component mounting board production line, but is a problem common to various devices that employ wireless power supply.

In order to solve the above problem, in order to solve the above-mentioned problems, a control power source is used from one of the production devices side for the movable device that moves along the arrangement of the plurality of production devices in the production line consisting of the plurality of arranged production devices. A wireless power supply system that wirelessly supplies power to a power source, wherein the movable device is wirelessly supplied with power from a drive unit that drives the movable device, a drive control unit that controls the operation of the drive unit, and the production device side. It is provided with a control power receiving unit that receives power from the control power source and supplies it to the drive control unit, and a power power receiving unit that receives the power power source wirelessly supplied from the production device side and supplies it to the drive unit. , wherein each of the plurality of production apparatus comprises a control power transmission unit for wireless power supply to the control power source to the movable apparatus, and a power supply transmission unit for wirelessly feeding the power supply to the movable apparatus, the The control power transmission unit and the power power transmission unit of the plurality of production devices are arranged along a trajectory in which the control power transmission unit and the power power transmission unit of the movable device move, respectively. It is configured to move along an arrangement of the plurality of production devices and receive the control power source and the power power source wirelessly supplied from the opposite production device side, and at a predetermined position of the production line, An emergency stop switch is provided to cut off the wireless power supply of the power power source to the movable device side when it is desired to make an emergency stop of the drive unit of the movable device, and the movable device is operated by operating the emergency stop switch. Even if the wireless power supply of the power power source to the side is cut off, the wireless power supply of the control power source to the movable device side is continued.

In this configuration, the control power supply and the power power supply are separately wirelessly supplied from the production device to the movable device, so that only the wireless power supply of the power power supply to the movable device side is cut off and movable at the time of an emergency stop. The wireless power supply of the control power supply to the device side is continued, and the control power supply is continuously supplied to the drive control unit of the movable device even during an emergency stop. Therefore, when the emergency stop is released and the operation of the movable device is restarted, it is not necessary to restart the system of the drive control unit of the movable device, and the operation of the movable device can be restarted immediately.

In the present invention, with each of the prior SL plurality of production devices of the production line comprising a plurality of production devices arranged respectively the control power transmission unit provided with the power supply power transmitting unit, the predetermined position of the production line The emergency stop switch is provided in the above, and the movable device moves along the arrangement of the plurality of production devices to receive the control power source and the power power source wirelessly supplied from the opposite production device side. Since it is configured in , the control power supply and the power power supply can be separately wirelessly supplied to the movable device from a plurality of production devices.

In this case, the control power transmission unit and the power power transmission unit of the plurality of production devices are arranged along the locus of movement of the control power transmission unit and the power power transmission unit of the movable device, respectively. Just do it.

FIG. 1 is a perspective view showing the configuration of the entire component mounting board production line of one embodiment. FIG. 2 is a perspective view schematically showing the configurations of the automatic switching device and the component mounting machine. FIG. 3 is a circuit diagram showing a configuration of a wireless power supply system of a component mounting board production line.

Hereinafter, an embodiment applied to a component mounting board production line with an automatic switching device will be described.

First, the configuration of the entire component mounting board production line 10 will be described.
As shown in FIG. 1, in the component mounting board production line 10 (fixing device), a plurality of component mounting machines 12 (production devices) are arranged along the X direction, which is the transport direction of the circuit board 11 (see FIG. 2). On the board carry-in side of the component mounting board production line 10, a solder printing machine (not shown) for printing solder on the circuit board 11 and a feeder storage device 19 (production) for storing a cassette type feeder 14 are stored. Equipment) etc. are installed.

As shown in FIG. 2, each component mounting machine 12 has two conveyors 13 that convey the circuit board 11 and a suction nozzle that sucks the components supplied from the cassette type feeder 14 and mounts them on the circuit board 11. A mounting head 15 for holding (not shown), a head moving device 16 for moving the mounting head 15 in the XY directions (left-right and front-back directions), and a component imaging device for capturing images of components sucked on the suction nozzle from the lower surface side thereof. A camera (not shown) and the like are provided. A mark imaging camera (not shown) that images a reference mark (not shown) of the circuit board 11 is attached to the head moving device 16 so as to move integrally with the mounting head 15 in the XY directions. The control device (not shown) of each component mounting machine 12 is connected to the production management computer 70 that manages the production of the entire component mounting board production line 10 via a network, and the production management computer 70 connects the component mounting board production line 10 to the production management computer 70. Production is controlled.

Each component mounting machine 12 of the component mounting board production line 10 conveys the circuit board 11 conveyed from the component mounting machine 12 on the upstream side to a predetermined position by the conveyor 13, and uses a clamping mechanism (not shown) to convey the circuit board. 11 is clamped and positioned, and the reference mark of the circuit board 11 is imaged by a mark imaging camera to recognize the position of the reference mark (reference position of the circuit board 11) and from the cassette type feeder 14. The supplied component is sucked by the suction nozzle of the mounting head 15, moved from the suction position to the imaging position, and the component is imaged from the lower surface side by the component imaging camera, and the suction position shift amount of the component is obtained. After measuring the above, the suction position deviation amount is corrected, and the component is mounted on the circuit board 11 on the conveyor 13 to produce a component mounting board.

As shown in FIG. 1, on the front side of the component mounting board production line 10, an automatic switching device 26 (movable device) that sets and removes a cassette type feeder 14 to the feeder setting unit 24 of each component mounting machine 12. Is installed. Below the feeder set portion 24 of each component mounting machine 12, a stock portion 71 for accommodating a plurality of feeders 14 to be set in the feeder set portion 24 is provided. The automatic switching device 26 takes out the feeder 14 to be replaced from the feeder set unit 24 of the plurality of component mounting machines 12 and collects it in the stock unit 71, and also collects the feeder 14 designated by the production job (production program) from the stock unit 71. Is taken out and set in the feeder set unit 24 of the plurality of component mounting machines 12.

On the front side of the component mounting board production line 10, a guide rail 74 for moving the automatic switching device 26 in the left-right direction (X direction) along the arrangement of the component mounting machines 12 is provided in the X direction for the entire component mounting board production line 10. It is provided so as to extend. The board carry-in side of the guide rail 74 is extended to the feeder storage device 19, the automatic switching device 26 is moved to the front side of the feeder storage device 19, and the automatic switching device 26 is designated by the feeder storage device 19 in the production job. The feeder 14 is taken out, and the used feeder 14 is returned to the feeder storage device 19.

Next, the configuration of a wireless power supply system that wirelessly supplies control power and power power to the automatic switching device 26 from the component mounting board production line 10 side will be described with reference to FIG.

At a predetermined position (for example, feeder storage device 19) of the component mounting board production line 10, a control power supply circuit unit 31 that converts externally supplied power to a control power supply and a control power supply circuit unit 31 that converts externally supplied power to power power are converted. The power power supply circuit unit 32 is provided in parallel, and the two power supply lines 33 and 34 for supplying the control power supply and the power power supply generated by each power supply circuit unit 31 are each device (feeder storage device) of the component mounting board production line 10. It is wired to 19 and each component mounting machine 12).

An emergency stop relay 35 is connected in series to the input side or output side of the power power supply circuit unit 32, and an emergency stop switch provided at a predetermined position (for example, feeder storage device 19) of the component mounting board production line 10. When the operator operates the 36, the cutoff relay 35 is opened and only the power supply is cut off, so that the control power supply is maintained.

Each device (feeder storage device 19 and each component mounting machine 12) of the component mounting board production line 10 automatically exchanges a control power transmission unit 37 that wirelessly supplies control power to the automatic switching device 26 side and a power power source. A power power transmission unit 38 for wirelessly supplying power is provided on the device 26 side. In the following description, when the term "device" is simply used, it means either the feeder storage device 19 or the component mounting machine 12.

The automatic switching device 26 controls one of a drive unit 41 such as a motor that drives the automatic switching device 26, a drive control unit 42 that controls the operation of the drive unit 41, and a component mounting board production line 10. Power supply Power supply that receives power power that is wirelessly supplied from the power transmission unit 37. Power power supply that receives the control power that is wirelessly supplied from the power transmission unit 38 of the control power supply unit 44 that receives power from the power transmission unit 37 and any device of the component mounting board production line 10. A power receiving unit 45 is provided, and the control power received by the control power receiving unit 44 is supplied to the drive control unit 42, and the control power received by the power power receiving unit 45 is supplied to the drive unit 41 via the drive circuit 46. It is designed to do.

In this case, the control power transmission unit 37 and the power power transmission unit 38 of each device of the component mounting board production line 10 follow the trajectory of the control power power transmission unit 44 and the power power transmission unit 45 of the automatic switching device 26, respectively. It is provided so as to extend in parallel, and when the automatic switching device 26 moves along the arrangement of each device of the component mounting board production line 10, it is provided with respect to the control power transmission unit 37 and the power power transmission unit 38 of the opposing devices. The control power receiving unit 44 and the power power receiving unit 45 of the automatic switching device 26 face each other to receive the control power and the power power that are wirelessly supplied from the device.

According to the present embodiment described above, when the operator feels some danger and makes an emergency stop of the automatic switching device 26 during the operation of the component mounting board production line 10, the operator makes an emergency stop switch 36. When the operation is performed, the cutoff relay 35 for emergency stop is opened, and only the wireless power supply to the automatic switching device 26 is cut off. As a result, the supply of the power power to the drive unit 45 of the automatic switching device 26 is cut off and the automatic switching device 26 is stopped in an emergency, but the wireless power supply of the control power to the automatic switching device 26 is continued, so that the emergency stop is made. Even inside, the control power is continuously supplied to the drive control unit 42 of the automatic switching device 26. Therefore, when the emergency stop is released and the operation of the automatic switching device 26 is restarted, it is not necessary to restart the system of the drive control unit 42 of the automatic switching device 26, and the operation of the automatic switching device 26 is immediately restarted. It can be done and productivity can be improved.

The production line to which the present invention can be applied is not limited to the component mounting board production line, and can be applied to any production line as long as the movable device moves along the arrangement of a plurality of production devices. Is.

Furthermore, the present invention is, of course, can be variously modified without departing from the Abstract.

10 ... Parts mounting board production line (fixing device), 12 ... Parts mounting machine (production device), 14 ... Cassette type feeder, 24 ... Feeder set unit, 26 ... Automatic switching device (movable device), 31 ... Control power supply circuit Unit, 32 ... Power power supply circuit unit, 35 ... Emergency stop relay, 36 ... Emergency stop switch, 37 ... Control power transmission unit, 38 ... Power power transmission unit, 41 ... Drive unit, 42 ... Drive control unit, 44 ... control power receiving unit, 45 ... power power receiving unit, 46 ... drive circuit

Claims (2)

A wireless power source that wirelessly supplies a control power source and a power source from one of the production devices to a movable device that moves along the array of the plurality of production devices in a production line consisting of a plurality of arranged production devices. It is a power supply system
The movable device receives a drive unit that drives the movable device, a drive control unit that controls the operation of the drive unit, and the control power supply wirelessly supplied from the production device side, and supplies the power to the drive control unit. It is provided with a control power receiving unit for receiving power and a power power receiving unit for receiving the power power supplied wirelessly from the production apparatus side and supplying the power to the driving unit.
Each of the plurality of production devices includes a control power transmission unit that wirelessly supplies power to the movable device side, and a power power transmission unit that wirelessly supplies power to the movable device side .
The control power transmission unit and the power power transmission unit of the plurality of production devices are arranged along a trajectory in which the control power transmission unit and the power power transmission unit of the movable device move, respectively.
The movable device is configured to move along an arrangement of the plurality of production devices and receive the control power source and the power power source wirelessly supplied from the opposite production device side, and is configured to receive power from the production line. At a predetermined position, an emergency stop switch is provided for performing an operation of shutting off the wireless power supply of the power source to the movable device side when it is desired to make an emergency stop of the drive unit of the movable device .
Even if the wireless power supply of the power power source to the movable device side is interrupted by the operation of the emergency stop switch, the wireless power supply of the control power source to the movable device side is continued. system. The production line is a component mounting board production line that includes a component mounting machine in the plurality of production devices.
The wireless power feeding system according to claim 1 , wherein the movable device is an automatic switching device that automatically replaces a feeder set in a feeder set portion of the component mounting machine.

Images