JPH0416404A - Picking device - Google Patents

Abstract

PURPOSE:To simplify the control device and enable automatic lights-out by providing a display lamp for indicating picking-out on each parts-rack formed by vertical and horizontal partitions, providing a pair of photoelectric switches for each row and each column, so as to light the display lamp under the command, and to light out the display lamp after discriminating the rack where the work is on from the operation of the photoelectric switches in the row and column. CONSTITUTION:An display lamps 21 are arranged on respective partitioned parts-racks of a rack 21, and a pair of photoelectric switches 22 and 23 are provided on the upper and lowest front of the parts-rack for each column and on the right and left front of the parts-rack for each row respectively. When a picking command is given from a control device to the picking rack 20 the display lamp 21 of the corresponding parts-rack 20 is lit. This lighting leads to the picking action, which allows the photoelectric switches 22 and 23 of the corresponding column and row to be operated. The control device obtains the position of the rack 20 as the intersecting point of the row and the column based on these detected signals, and turns out the display lamp 21, leading to a simple control device to make automatic lights-out.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a picking device that instructs to take out a predetermined article from a shelf in which a large number of different kinds of articles are divided and stored.

[Conventional technology]

4 and 5 are explanatory diagrams showing a conventional picking display device. As shown in FIG. 5, a one-part shelf is divided into 48 shelves, and each column has an indicator lamp 15 and a limit switch 17. It is arranged.

Necessary data is stored in the CPU of the control device's computer in advance on a data disk.

By specifying the I-King target using the keyboard, predetermined data is transferred from the CPU to the sequencer.

Inside the sequencer, keep relays 16 to 16' are provided that hold the lighting circuit for the indicator lamp 15.
A designated keep relay 16 is turned on according to a signal from the CPU, and the corresponding lamp among the display lamps 15 to 15' is turned on to display the article to be picked.

This keep relay 16 is provided in a pair with each indicator lamp I5, or is reset by pressing the switch 17, and the corresponding indicator lamp 15 is turned off.

If the picking is missed, all keep relays 16 to 16 will be turned off and 1 indicator lamp 15 to 1 will be turned off.
All lights are turned off at 5°.

[Invention or problem to be solved]

In the conventional picking device, one indicator lamp 15 and one limit switch I7 are arranged on each parts shelf, and when picking is completed, the limit switch 1 of each parts shelf is switched on.
7 to turn off the display lamp 15 of that parts shelf, the task of pressing the limit switch 17 is not enough to be added to the picking operation, and sometimes people forget to press the limit switch 17. Also,
Each parts shelf is equipped with one display lamp 15 and one limit switch 17, and it is necessary to input and output each separately, so if the parts shelf has a large number of parts, it is necessary to install equipment or large-scale equipment. becomes.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and provide a picking device that can automatically detect the picking operation of each component shelf, turn off the indicator lamp, and simplify the device.

[Means and effects for solving the problem] The present invention includes an indicator light for instructing the removal of the component on each component shelf partitioned into many vertical and horizontal sections, and a pair of photoelectric switches for each row and column of the component shelf. and a control device that selects and turns on the indicator light as specified in advance, detects the coordinate position where the photoelectric switch is actuated along with the row and column, and turns off the indicator light of the parts shelf. It is a picking device.

When a component is taken out from the parts shelf according to the instruction to turn on the indicator lamp, the pair of photoelectric switches in the row and column where the parts shelf is located are activated, and the shelf position that is the intersection of these switches is detected, and the indicator lamp for this shelf is turned off. do.

Therefore, either an indicator lamp is required for each column or the number of photoelectric switch pairs is significantly less than the number of species.

(Example) An example in which the present invention is applied to a parts shelf in automobile assembly work will be described with reference to the drawings.

As shown in FIG. 2, for example, the shelf 20 is divided into 42 component shelves arranged in 6 rows vertically and 7 columns horizontally. A pair of photoelectric switches 22 is placed in each row, and a pair of photoelectric switches 23 are placed in the left and right front surfaces of the component shelves in each row.

Using a computer as a control device, as shown in FIG. 1, when an assembled car model x1 is input using a keyboard 10, the assembled parts of that car model stored in the memory 11 are read, and the parts shelf number data is transferred to the sequencer 2. Then, when the sequencer 2 uses the six keyboards 10 stored in its memory to machine the next vehicle model x2, it shifts the data in the memory of the sequencer 2 and stores these data sequentially. to follow the management pointer 3. The data pointed to by the management pointer 3 is decoded from the input/output device 12 and the display lamp 21 of the parts shelf 20 is turned on.

On the other hand, the sequencer 2 is connected to the operation panel 4.
The display window 5 displays the vehicle model number that the management pointer 3 is pointing to. In addition, the operation panel 4 is provided with push buttons for controlling the management pointer 3, 6 is for advance, 7 is for return, and 8 is for control.
9 is a push button for canceling, and 9 is a push button for setting.

When picking automobile engine parts, the picking unit is one engine, so in assembly work where many types or mixtures are involved, it is necessary to check the picking of one or two previous parts. There is no need to operate the computer each time, and the user can respond immediately by operating these push buttons on the operation IM 4.

Next, the action of picking will be explained.

For example, when a component is taken out from the component shelf (shelf number 1) in the first row and first column according to the instructions of the indicator lamp 21, the photoelectric switch pair 23 in the first row and the photoelectric switch pair 22 in the first column are activated. The shelf position (shelf number 1) that is the intersection of these is detected, and the keep relay of the indicator lamp 21 of this shelf is released and the indicator lamp 21 is turned off. When shelf number 12 is picked, the photoelectric switch pair 23 in the second row and the photoelectric switch pair 22 in the fifth column are activated.

Therefore, in the case of a component shelf with 42 locations in 6 rows and 7 columns as shown in FIG. As a result, the number of limit switches has been significantly reduced compared to arranging limit switches for each column, and with this, the number of input/output points in the control device has been reduced from 84 points to 55 points. Therefore, the configuration of the control device is also simplified.

In this way, it is particularly effective in the case of a parts shelf with a large number of small parts.

In addition, by using the photoelectric switch matrix described above to detect picking, it is possible to easily prevent incorrect picking. A flowchart of picking display in this case is shown in FIG.

#1 Input the table type to be assembled, that is, the vehicle type to be picked, into the computer l using the keyboard lO. You can input many target vehicle types Xl to x0 at one time, and press #2 to operate g.
Management pointer 3 of sequencer 2 is activated by pressing the i4 button.
is controlled to select a desired table type, and the display lamp 21 of the shelf 20 is turned on based on the part data X.

#3 Photoelectric switch pair 22 and photoelectric switch pair 2 on shelf 20
#3 scans the operating state, determines whether the detected data Y is within the input data, #4 compares Y with picking parts data It is determined that the user has put his or her hand into an unused parts shelf, and an alarm signal is sent to the alarm device 13. This alarm will stop when the next correct picking is performed and a YES signal is issued in #4, and the display lamp 21 will go out.

In addition, during the above flow, when #4 alarm is issued,
You can also set it to turn off the alarm if you take your hand off the wrong shelf.

(Effects of the Invention) The present invention can automatically detect the picking operation of each component shelf, turn off the indicator lamp, and simplify the control device.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of the control device of the present invention, Fig. 2 is a front view showing an embodiment of a parts shelf, Fig. 3 is a flowchart of the operation of the control device of the present invention, and Fig. 4 is a diagram of the conventional control device. Explanatory diagram,
FIG. 5 is a front view showing a conventional parts shelf. 5: Vehicle type display window 7: Return button 13: Alarm device 21: Display lamp 23: Photoelectric switch pair 6: A button 12: Input/output device 20: Shelf 22: Photoelectric switch pair Figure 1 Figure 3WA Figure 5

Claims (1)

[Claims] An indicator light for instructing the removal of the component on each parts shelf formed by dividing it into many vertical and horizontal sections, and a pair of photoelectric switches for each row and column of the parts shelf are provided, and the indicator lights are arranged as specified in advance. A picking device comprising a control device that selectively turns on the indicator light of the parts shelf, detects the coordinate position where both the row and column of the photoelectric switch are activated, and turns off the indicator light of the component shelf.