JPH0516532Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a pallet, and particularly to a pallet placed on a conveyor and conveyed through an assembly line, an aging device, etc.

[Prior art and problems that the invention attempts to solve]

In a conventional pallet transport system, for example, if a radio is an electrical product that is to be assembled on a pallet, the assembly line uses a pallet adapted to the assembly line, and the radio is placed on this pallet. The radio is placed in the same place for predetermined adjustments, measurements, inspections, etc. After completing these tasks, the radio is placed on another pallet adapted for the aging device, and a dummy resistor is connected to the output terminal of the radio. are connected, placed on a conveyor, and transported into the aging equipment.

In other words, when placing electrical products such as radios on a conveyor and transporting them through different types of processes, pallets are prepared according to the individual conveyor equipment corresponding to each process, and when the process changes, pallets are prepared. Each time, it was necessary to transfer the product to a different pallet.

However, such pallet exchange, that is, product reloading work, is particularly troublesome when handling large quantities of products in an assembly line system, requires time and effort, and may even lead to a decrease in work efficiency. I had a problem connecting. Furthermore, it requires extra space to store pallets for reloading at locations where processes change, which is extremely inconvenient.

The present invention was devised in view of the problems with the conventional type mentioned above, and the purpose is to provide a pallet that eliminates the work of reloading products and connecting dummy loads, and can contribute to increasing work efficiency. It is said that

[Means for solving problems]

According to the present invention, the pallet is placed on a conveyor and transported through an assembly line and an aging device, the first pallet being connectable to a control box placed at a predetermined position on the assembly line. a connector, a second connector connected to the placed electrical product to be assembled, a power supply means for supplying operating current of the electrical product, a dummy load corresponding to the power consumption of the electrical product, and a second connector connected to the mounted electrical product to be assembled; connected to the output terminal of the electrical product via a connector of 2;
When a control signal is supplied from the control box through the first connector, the output signal of the appliance is connected to the control box, and when the control signal is not supplied, the output signal of the appliance is connected to the control box. and switching means connected to a dummy load.

[Effect]

The electrical appliance is supplied with operating current by the electrical supply means, and an output signal from the electrical appliance is supplied from the control box via the first connector when the pallet is in position on the assembly line. connected to the control box by switching means in response to a control signal, at which time a predetermined adjustment, measurement,
Inspection and other work will be carried out. On the other hand, when the pallet is removed from the predetermined position on the assembly line, the control signal is not supplied, so the output signal of the electrical product is switched and connected to the dummy load by the switching means. As a result, a predetermined aging process is performed.

In this way, the pallet of the present invention can be used in different processes (i.e., assembly processing and aging processing) without having to reload products or connect dummy loads.
This makes it easier to work at the machine, thereby increasing work efficiency.

〔Example〕

FIG. 1 shows the electrical internal structure of a pallet as an embodiment of the present invention, and FIG. 2 shows a schematic plan view of a pallet transport system.

First, in FIG. 2, reference numeral 21 indicates a chain conveyor disposed along an assembly line, on which pallets 1 are placed and conveyed. Reference numeral 22 denotes a stopper disposed at a predetermined position to prevent the pallet 1 being conveyed from moving and to hold the pallet 1 at a predetermined position. In this state, the connector 2 of the pallet 1 and the connector 5 of the control box 4 placed at a predetermined position on the assembly line are connected to each other, thereby allowing predetermined adjustments and
It becomes possible to carry out work such as measurement and inspection. When this work is completed, the connectors 2 and 5 are disconnected based on the operator's operation of a switch (not shown) via the control box 4, and at the same time the stopper 22 falls down in the direction of movement of the pallet 1.
As a result, pallet 1 resumes its movement. 23
The pallet 1 is transferred from the assembly line to the aging device 2.
4 shows a chain conveyor for conveying the material into the container.
When the blocking action by the stopper 22 is released, the pallet 1 is moved from the conveyor 21 to the conveyor 23 by a lift mechanism (not shown). The radio 6 on the pallet 1 is subjected to a predetermined aging process (approximately 1 hour) in the aging device 24.
After that, the pallet is transferred to chain conveyor 2.
5 and transferred to a chain conveyor 21 on the original assembly line.

Next, the electrical configuration inside the pallet 1 will be explained with reference to FIG. The pallet 1 is provided with connectors 2 and 3, the connector 2 being adapted to be connectable with the connector 5 of the control box 4, and the connector 3 being connected with the connector 7 of the radio 6. Pallet 1 and control box 4 are connected to connectors 2 and 5 only when pallet 1 is held in place on the assembly line as described above.
connected via. Reference numerals 8 and 9 indicate current collecting brushes, and although not shown in FIG. 2, the power supply rail 1 disposed within the aging device 24
It is attached to the pallet 1 so as to be in sliding contact with the terminals 0 and 11 (indicated by broken lines), respectively. The brush 9 side is grounded, and between the brushes 8 and 9, two Zener diodes 12 and 13 are connected to each other via their cathodes. One end of the fuse 14 is connected to the anode side of the Zener diode 12, that is, the brush 8. is connected, and the other end of the fuse is
Terminal T ₂₁ of connector 2 and terminal of connector 3
Connected to T ₃₂ . Zener diodes 12 and 13 function as surge absorbers.

15 indicates a plurality of capacitors connected in series and parallel; one end of the capacitor is grounded, and the other end is connected to the cathode of the diode 16 and the connector 3.
is connected to terminal T ₃₁ of. This diode 1
The anode side of 6 is connected to terminal T ₂₁ of connector 2 and terminal T ₃₂ of connector 3. The capacitor 15 is connected to the power supply voltage supplied from the control box 4 via the terminal T ₂₁ and the diode 16, or from the current collecting brushes 8, 11 from the rails 10 and 11.
9. It is charged by the power supply voltage supplied via the fuse 14 and the diode 16, and in the absence of either power supply, in other words when the pallet 1 is being transported between the assembly line and the aging device. It has a function of supplying charging charge to the radio 6 via the terminal _T31 . Therefore, the radio 6 is always supplied with a predetermined voltage.

Reference numeral 17 indicates a relay, one end of which is grounded and the other end connected to terminal T ₂₂ of connector 2. A freewheel diode 18 is connected in parallel with the relay 17, and serves to protect the relay by circulating the current flowing through the coil in the relay when the relay is de-energized. This relay 17 is energized by the power supply voltage supplied from the control box 4 through the terminal _T22 , and has the function of connecting a switch 19, which will be described later, to the contact b side. Terminal T ₂₃ of connector 2 and terminal 3 of connector 3
_T33 are connected to each other, and the signal line passing through these terminals is used as a control line from the control box 4 to the radio 6. Terminal T ₂₄ of connector 2 and terminal T ₃₄ of connector 3 are connected to each other, one end of a dummy resistor 20 corresponding to the power consumption of radio 6 is connected to the terminal, and the other end of the dummy resistor is connected to contact a. has been done. Switch 19 is the terminal of connector 3
When the relay 17 mentioned _above is de-energized, it is connected to the contact a side, and when the relay 17 is energized, it is connected to the terminal T ₂₅ of the connector 2 via the contact b.
connected to.

Therefore, according to the configuration shown in FIG. 1, when the pallet 1 is connected to the control box 4 via the connectors 2 and 5 at a predetermined position on the assembly line, the switch 19 is activated by the energization of the relay 17. Since the switch is switched to the contact b side, the output signal from the radio 6 is transmitted to the control box 4, and thereby,
It is possible to carry out work such as predetermined adjustments, measurements, and inspections. On the other hand, when the pallet 1 is removed from the predetermined position, the relay 17 is deenergized and the switch 19 is switched to the contact a side, so the output signal from the radio 6 is consumed by the dummy resistor 20, thereby causing the predetermined Aging takes place. in this way,
By using the pallet 1 configured in this embodiment, there is no need to transfer the pallet to another pallet even when passing through different processes, that is, an assembly line and an aging device, thereby increasing work efficiency. be able to.

FIG. 3 shows a plan view of an example of the pallet 1 used in this embodiment. In the figure, pocket 30
is for accommodating parts used when assembling the product (radio 6). 31 is radio 6
The plate on which the is placed is shown.

FIG. 4 shows an example of a side view taken from line A-A in FIG. 3, and the example in FIG.
The state is shown when in the predetermined position shown in the figure.
In the figure, 32 indicates a member for supporting the plate 31, and the supporting member 32 is adapted to be driven in the vertical direction by a rod 33 of an air cylinder 34. This air cylinder 34 is operated under control from the control box 4 when the pallet 1 is held in a predetermined position by the stopper 22, and is returned to its original state based on the operator's switch operation after a predetermined work is completed. It's becoming like that. As shown in FIG. 4, by tilting the plate 31 on the pallet 1, it becomes easier to perform certain operations, such as adjustment, measurement, inspection, etc., thereby improving operability. Become.

In this embodiment, a configuration in which current is collected from an electricity supply rail is used as the power supply means, but a configuration in which primary and secondary batteries are incorporated into the pallet may also be used.

[Effect of idea]

As explained above, according to the present invention, the work of reloading products and the work of connecting dummy loads are no longer necessary, and work efficiency can be increased.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing the electrical internal configuration of a pallet as an embodiment of the present invention, Fig. 2 is a plan view schematically showing a pallet transport system, and Fig. 3 is a plan view showing an example of a pallet. Figure 4 is A-A in Figure 3.
3 is an example of a side view taken from the line, showing the state when the pallet is in the predetermined position shown in FIG. 2; FIG. Explanation of symbols, 1... Palette, 2, 3... Connector, 4... Control box, 6... Electrical product (radio), 8, 9... Current collection brush, 10, 11...
Power supply rail, 15... Capacitor, 17...
...Relay, 19...Switch, 20...Dummy resistor, 21...Chain conveyor, 23, 25...
Chain conveyor, 24... Aging device, 3
4...Air cylinder.

Claims (1)

[Claims for Utility Model Registration] A pallet 1 placed on conveyors 21, 23, 25 and conveyed through an assembly line and an aging device 24, which is placed at a predetermined position on the assembly line. a first connector 2 connectable to a control box 4; a second connector 3 connected to a placed electrical product 6 to be assembled; power supply means 4, 10 for supplying operating current for the electrical product; 11, 15, a dummy load 20 corresponding to the power consumption of the electrical product, and a dummy load 20 connected to the output terminal of the electrical product via the second connector, and controlled by the control box via the first connector. switching means 17, 19 for connecting the output signal of the electrical product to the control box when the signal is supplied, and for connecting the output signal of the electrical product to the dummy load when the control signal is not supplied; A palette characterized by: