JP3228766B2 - Video teaching equipment for processing machines - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video teaching apparatus for a processing machine which can be connected to various processing machines and educates necessary items for operating the connected processing machine using video information.

[0002]

2. Description of the Related Art In recent years, with the development of FMS and CIM, various machines have been dynamically controlled on machining cells or lines.

For example, in a sheet metal processing line equipped with an automatic warehouse, a press machine, a material loading / unloading device, etc., each machine is connected by a local area network (LAN), and starts to press machine under the control of a monitoring control room. Only by giving a signal, a plate material (work) to be processed is automatically supplied, and a pressed product as a product or a semi-finished product is automatically shipped via an automatic warehouse or not.

[0004] Here, an operator (operator) located on the processing line is required to make conditions for operating each machine, that is, a setup work, and to perform the setup work while communicating with the monitoring control room. Must monitor each machine and perform the next setup work.

[0005] When an alarm occurs in each machine, the other machines must be temporarily stopped, the alarm must be canceled, and the machine must be restarted. That is,
Workers need to have at least the knowledge and skills to start and stop each machine, and to be able to cancel the alarm for minor alarms.

[0006]

However, in recent years, the labor shortage has occurred in various industries, especially in 3K, where workers are not gathered for dangerous, dirty or hard work. . Even in each processing industry, it is difficult to secure workers with the minimum knowledge as described above.

Incidentally, each processing line includes seasonal workers, part-time women, part-time students, foreign workers, etc.
Many ordinary workers are employed.

On the other hand, the processing lines in recent years have a relationship oriented to FMS, and the control devices of the respective machines have different arrangements of switches on an operation panel, and the operation methods are also different. Educating the workers to be compatible with all machines is a daunting skill.

On the other hand, in recent years, processing machines have been exported at the world level. However, it is difficult to make various manuals for export machinery, so that engineers in the country can understand it in the language of the country. Moreover, even if the manual is completely created, it is difficult to read the characters one by one.

[0010] In view of the above, the present invention has been made in view of the fact that video-based education is visual and effective and simple education is sufficient. It is an object of the present invention to provide a video teaching device for a processing machine capable of surely using a video information to teach items necessary for the operation such as a maintenance inspection method and a maintenance / repair method.

[0011]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and the invention according to claim 1 is connectable to various processing machines provided with an NC (numerical control) device having a screen. This is a video teaching device for processing machines that teaches necessary items for the operation of connected processing machines using video information, and the items necessary for the operation are classified by item for each connectable processing machine. Video information recording means recorded as video information, video reproduction means having a screen for displaying video information recorded in the video information recording means, and reproduction of video information recorded in the video information recording means For this purpose, a video control information storage means storing recording position information and control information for each item of the video information, and the operator inputs desired items, whereby the video (E) Based on the recording position information stored in the control information storage means, the video information of the desired item for the processing machine recorded in the video information recording means is displayed on the screen of the video reproduction means, and When the operator operates the processing machine in accordance with the instruction, the reproduction video information is continued or paused based on the control information stored in the video control information storage means in accordance with operation information input from the NC device. , is a processing machine for video education apparatus example Bei and video playback processing means for performing processing such as jump to other items.

[0012]

According to the present invention, it is possible to educate the operator about necessary items for the operation of various processing machines in an easy-to-understand manner. Can be omitted, and the operator can learn the operating method of the processing machine most efficiently and in the shortest time.

[0013]

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 to 5 are explanatory diagrams showing specific examples of a processing line, FIGS. 6 to 12 are explanatory diagrams showing specifications of a video teaching device for a processing machine applied to this processing line, and FIG. 13 is another embodiment. FIG.

In FIG. 1 showing an example of an FMS processing line, the processing line 1 includes an automatic warehouse 3 having a multi-row multi-stage rack 2, and a rear side of a predetermined rack 2 is provided behind the rack 2. A material loading device 4 for loading a sheet metal material from the apparatus. Further, in front of the racks 2, there are provided elevating platforms 5 which can be positioned at the height positions of the respective racks 2, and a material carrying-in / out device (traverser) 6 which can be moved to the respective rack positions. Therefore, the material stored in one rack 2 by the material loading / unloading device 4 can be transferred to another rack 2 by a general loading / unloading operation of the material loading / unloading device 6, and is appropriately stored. The material or the product can be taken out on the lift 5 as appropriate.

On the other hand, a loading device (single-sheet picking device) is placed on a line at a certain distance in front of the automatic warehouse 2.
A turret punch press 9 having an unloading device 7 and an unloading device 8 is provided. A transport path 10 is appropriately provided between the loading device 7 and the unloading device 8 and the automatic warehouse 3, and arrows A, B, and C , D, and e, the raw material is processed into a product, and the product is conveyed to the next step or a retrieval section as appropriate.

In the processing line 1 having the above-described configuration, an intelligent stocker controller (ISC) 11 is arranged near the material loading device 4 of the automatic warehouse 3, and is located near the turret punch press 9. An NC (numerical control) device 12 for controlling the
In the vicinity of the device 12, a controller 13 connected to the loading device 7 and the unloading device 8 for controlling each machine, and the controller 13 and the NC
An intelligent data terminal (IDT) 14 that collectively processes the device 12 is provided. The data terminal 14 serves as a higher-level controller of the NC device 12. These controllers 11, 12, 13, and 14 are connected to each other by a LAN line 15, and a main controller (IMC) 16 and an automatic programming device 17 disposed in a monitoring and control room are further connected to the LAN line 15. . Terminals (TH) 19 and 20 connected to the stocker controller 11 via the line 18 are appropriately arranged at separate positions to perform operations on the automatic warehouse 4 at various places.

Therefore, in the processing line 1 of this example,
The controllers 11, 12, and 14, the main controller 16, the automatic programming device 17, and the like are interconnected by a LAN wiring 15, and the main controller 1
By providing the schedule program created in Step 6 to the upper-level controller 14, the scheduled N
The C program can be executed sequentially in each machine. Reference numeral 21 denotes a video teaching device for a processing machine according to one embodiment of the present invention. The video teaching device for processing machines is provided with casters so that it can be brought near the processing machine to be educated. In this example, each controller 11,
12, 13, and 14 can be connected.

As shown in FIG. 2, the turret punch press 9 includes upper and lower turrets 22U and 22D which are vertically arranged in a so-called bridge-shaped frame F. The turrets 22U and 22D are rotated to perform processing. By pressing the die indexed at the position with a striker (not shown) provided above the die, a work gripped by a work clamp device (not shown) and positioned on the table 23 is appropriately pressed. be able to. FIG. 3 shows an arrangement state of the mold mounting stations on the turret 22.
The numbers shown in the figure are station numbers.

In the turret punch press 9, a work clamping device must be positioned on a carriage and a mold changing operation must be performed as a setup operation. The mold exchanging operation is performed by referring to a work slip or the like and referring to the turrets 22U,
A mold having a predetermined shape is set in a predetermined mold mounting station D in advance. Then, by operating the start switch of the NC device 12, the IMC 16 knows the ready state, and the scheduled operation is performed. However, at the first start of the morning, a preparation procedure for the start is necessary as described later. The video teaching device 21 for a processing machine includes an operation method of each controller or a device connected thereto, including these setup and operation methods.
In addition to explaining the structure, maintenance and inspection methods, maintenance and repair methods, etc., it is also possible to guide and assist each operation.

FIG. 4 is a block diagram showing a hardware configuration of the NC device 12 for controlling the turret punch press 9. As shown, the NC device 12 includes a CPU 25, a ROM 26, a RAM 27 backed up by a battery Bat, a digital input (Di) 28, a digital output (Do) 29,
Programmable controller (PC) 30, bidirectional RA
M (DP-RAM) 31, serial interface (S
IO) 32, 33, 34, 35, a parallel interface (PIO) 36, and the like.

Various actuators (SOL) 3 are connected to Di 28 and Do 29 via a connector module 37.
8 and sensors 39 such as a limit switch (LS) for press control.

The PC 30 refers to the detection numbers of the sensors 39 and controls the various actuators 3 under the control of the CPU 25.
8 to output a control signal. The control signal includes a signal for rotating the turret 22.

The DP-RAM 31 has an encoder E via a positioning module 40 and a servo amplifier 41.
And a servo motor Ms with a tacho generator TG. The servomotor Ms includes a two-dimensional servomotor Mx, My for driving the work clamp device described in FIG. 2 in a horizontal plane, and a mold having a mechanism for automatically changing the mold arrangement angle (auto index). Each mounting station includes a servomotor Mt that rotationally drives the mold in the turret 22.

The serial interface 32 is connected via a controller 42 to a color CRT 43 and a manual data input device (MDi) 44 having input keys such as numeric keys.

A control panel 46 for performing various operations is connected to the serial interface 33 via a controller 45.

The parallel interface 36 is connected to a paper tape reader (PTR) 47 for inputting an NC tape. A non-volatile memory for storing and storing the NC program in parallel with the paper tape reader 47 is appropriately connected. The serial interface 35 is connected to the LAN 15
Connected to Further, in this example, the video interface 21 for a processing machine is connected to the serial interface 34. In this example, an example will be described in which the video teaching device 21 for a processing machine is connected to the NC device 12 and the operation method of the NC device 12 and the operation method of the turret punch press 9 are guided and indicated.

The general operation of the NC device 12 will be briefly described. For example, in the NC program read from the PTR 47, a station number i is specified and a mold mounted on the station S (i) is used. Information such as a processing position where predetermined processing is to be performed is stored. Then, the CPU 25 activates the PC 30 and the DP-RAM 31, rotates the turret 22 shown in FIG. 2 to index a predetermined station (die) to the processing position, and applies the work to the workpiece W gripped and moved by the workpiece clamping device. On the other hand, the striker is lowered, and a predetermined press working is performed at a predetermined position with an indexing die.

FIG. 5 is a front view of the operation panel surface 48 of the NC unit 12 including the MDi 44 and the CRT 43. As shown in the figure, a CRT 43 is embedded on the upper left side of the operation panel surface 48, and operation switches and lamps dedicated to the NC device are arranged in other areas. Generally, a large number of function switches are provided in the operation switches, and a single function is called and executed only by operating these switches. By the way, the switches with graphic display shown on the left side of the numeric keypad are used at the time of creating a processing program, and each switch specifies processing of a pattern shown by a graphic. On the screen 43A of the CRT 43, data for work support are displayed when the NC program is created, the current state and the like are displayed during processing, and data necessary for the alarm processing are displayed during the alarm processing. However, the alarm processing method shown here is based on characters and the like, and is a general method that is difficult to use unless one has some knowledge.

FIG. 6 is an explanatory view showing the appearance of a video teaching device 21 for a processing machine according to one embodiment of the present invention. The video teaching device 21 for a processing machine is provided with a television 51 on a television stand 50, and a general VT is mounted on a shelf formed in the stand.
An R device 52 and a reproduction processing device 53 that controls the VTR device 52 in an interlocking relationship with the target processing machine are housed. An IC card 54 as a video control information storage device can be attached to the reproduction processing device 53. In the door 55, an educational video tape cassette 56 is appropriately stored. Generally, the cassette 56 is created for each target processing machine.

The television 51 has a CRT screen 57 on which an operator 58 can be positioned. The orientation of the screen 57 can be adjusted as appropriate so that the operator 58 can easily see it, and can also observe the target processing machine while looking at it. For this reason, a caster 59 is attached below the base 50 so as to appropriately correspond to the target processing machine. In addition, stand 5
A cable for serial data transmission (RS232C) provided with a connector 60 is attached to the side of 0, and is connected to a serial interface of a target processing machine.

The operator 58 has a wired remote controller 61.
And a headphone set 62 connected thereto can be mounted.

In the above configuration, the connector 60 is connected to the serial interface of the target processing machine, the cassette 56 created for the target processing machine is mounted on the VTR device 52, and the IC card 54 corresponding to this is reproduced. It can be set on the device 53 to receive video education.

FIG. 7 is a block diagram showing a hardware configuration of the reproduction processing device 53. As shown, the reproduction processing device 53 includes a CPU 63, a ROM 65, an RA
M66, SIOs 67, 68, 69 and Do 70 are connected, and the SIO 67 is connected to the NC device 12 via a connector 60.
SIO35. The IC card interface 71 is connected to the SIO 68,
The C card 54 can be mounted. SIO69 is V
It is connected to the TR controller 72. The VTR controller 72 is connected to the above-mentioned VTR device 52, a remote controller 61 and a headphone set 62. D
LEDs 73 are connected to o70. This LE
D73 is provided on the operation surface of the VTR controller 72. Although various switches are provided on the remote controller 61 in this example, operation switches can be provided on the VTR controller 72 as appropriate.

FIG. 8 is an explanatory diagram of data stored in the IC card 54. As shown, the IC card 54 stores information for table of contents display, video position information, and control information for each item. Further, the relation between the items shown in the table of contents (see FIG. 12) is also stored. These pieces of information are created for each cassette 56.
Need not be for each cassette, and information about a plurality of cassettes can be stored together. The table of contents display information is for displaying the contents of each cassette on the screen 57 as a table of contents. In this table of contents, the code for each item is displayed. The video position information indicates which item is recorded at which position in the cassette, and is indicated by a count value Pi (i is an item number) of the cassette rotation amount. The control information for each item is defined for each item, and at a certain position,
Or, under certain conditions, conditions such as whether to temporarily stop the cassette, jump to another item, or wait for a condition such as a signal are determined.

FIG. 9 is an explanatory diagram showing items of video information recorded in the cassette 56. Cassette 56 of this example
-1 is assigned to each position Pi (i =
Description of machining line, inspection method before starting, starting method, home position return method, material setting method, die changing method, automatic operation method, manual operation method, overtravel processing method, override processing method in 1, 2, ...) And many other educational video information. Since these pieces of information are basically used individually, it is better to organize them as much as possible by visual search, but basically various kinds of information may be mixed and recorded. The relevance of each item is IC
It is stored in the card 54.

FIG. 10 is a flowchart showing a video reproducing method for general explanation. When the cassette 56 is inserted into the VTR device 52 in step 1001, the tape is rewound in step 1002. Therefore, the operator 58
Uses the remote controller 61 to input an item to be educated. This is determined in step 1003, and
In 004, the item is located, and in step 1005, the reproduction of the video information is displayed on the screen 57.

Next, step 1006 where reproduction is started
Until the end is determined in step 1007, the NC device 12 and the tape position are monitored in step 1007.
At 008 and 1009, the condition in the control information written on the IC card 54 is determined.

If it is determined in step 1008 that the tape is temporarily stopped for waiting for a condition, the tape is temporarily stopped at that position. This is, for example, a measure in anticipation of a case in which an operation of the NC apparatus 12 is instructed and it takes time. During this time, the screen may be fixed. After the suspension, the condition is awaited at step 1010, and
If the condition inputs are prepared in step 011, the process proceeds to step 1006. In step 1009, the process waits for time.

Specifically, for example, the starting method (T3)
In the operation panel 48 of the NC device 12, first, "Origin" is selected by mode selection, the origin movement keys "+ X" and "+ Y" are operated, and the "X-axis origin" and "Y-axis" of the LED display at the lower left of the panel are displayed. Since the mode may be switched to "automatic" after the "origin" lamp is turned on, a sequential procedure may be displayed on the screen 57 and guided by video and audio to execute these procedures. The tape can automatically jump to the home position return method (T4). During these periods, the CPU 64 monitors the operating state of the NC device via the RAM 66, and the following procedure will be described when the conditions are met.

With the above processing, an explanation image of various educational items is displayed on the screen 57 shown in FIG. 6, and based on the image, the line configuration, the structure of the punch press equipment 9,
Each item shown in FIG. 9 such as a pre-start inspection method and a start method can be known. In addition, as the contents of the education, since the user can proceed while observing the object to be explained and monitoring the operation state, the explanation is easy to understand and the redundancy of the video can be omitted.

FIG. 11 shows the education items on the alarm coping method. This is not to explain the contents of the alarm, but to deal with an alarm that has actually occurred. At each position Pi of the cassette 56-2, an alarm processing method corresponding to each alarm code is recorded.

For example, in the override (A2), a part of the work clamp device is too close to the mold, and if punching is performed as it is, there is a possibility that a part of the work clamp device may be punched out by the mold. Therefore, when this state occurs, an alarm (A2) is generated, and the NC apparatus enters a state of temporary suspension. In this state, the operator observes whether there is a possibility of actually punching out the work clamp device, and if there is no fear of punching out, presses the start button to continue the processing. The video about the override processing method explains this using images, and educates a confirmation method and the like. During this time, the signal state of the NC device 12 is also confirmed, and the processing position is skipped and processing is continued, or work is supported so that processing is continued from that position. To determine whether there is any other method besides skipping the processing at that position, search the video network shown in FIG.
It is also possible to jump to the next video information automatically or manually. As described before, the information shown in FIG. 11 may be mixed in the information of FIG.

As described above, the operator 58 can perform the work in accordance with the instruction of the video shown in FIG. 11, and can perform appropriate processing for the turret punch press 9 and the NC unit 12. The same applies to maintenance inspections, maintenance, and restoration. In addition, desired information can be added to the video 56. In addition, IC card 5
4 can also incorporate advanced control information.

FIG. 12 shows a network structure of video information. In FIG. 7, each video item Ai, Bj, Ck is networked, and the selection of i, j, k corresponds to various educations. By combining video information in this way and jumping from information to information as appropriate,
For example, when a certain item is insufficiently explained, it is possible to cope with a large number of education with a small amount of information, such as teaching a specific contact place.

FIG. 13 shows a video teaching device 21 for a processing machine.
Is provided on a panel 75 together with its operation switches, and is rotatably provided on the side surface of the NC device 12. The control member of the video teaching device 21 for processing machines is N
It shall be stored in the box of the C device 12. In this example, the remote controller 61 is omitted, and switches for operating the VTR instead of the remote controller 61 are provided on the panel surface.

In this example, the panel 75 is always aligned with the side wall of the NC device 12 and is rotated when not in use so that the screen 57 can be viewed easily. There are no benefits. Even in this case, the screen 57 is displayed on the CRT 43 of the NC device 12.
Screen does not match. This is because the video teaching device 21 for a processing machine in this example is used while the NC device is operated, and the CRT 43 wants to display the status of the NC device. The switches on the panel 75 are also N
It is better to provide it separately from that of the C device 12. This is because, in the case of sharing with the NC device 12, it is necessary to further increase the number of switches that are too many, which complicates the switch function.

In the above description, the video teaching device 21 for processing machines was connected to the NC device 12 to provide education on the turret punch press 9 and the NC device 12. Equipment, such as IMC1
6 and the stocker controller 11. In this case, the cassette 56, I
The C card 54 will be replaced. At IMC16,
It is possible to educate how to set a schedule, how to use the automatic programming device 17, and the like. In the ISC 11, the explanation of the automatic warehouse 3, the material storage method, the manual operation method, and the like can be provided.

In the embodiment described above, the remote controller 61 and the headphone 62 are connected to the video teaching device 21 for a processing machine in a wired manner.

Further, in the above embodiment, a video tape is used for recording video information, but a CD or other medium may be used. Further, it may be diverted to another device via the LAN 15 or transferred from outside the factory via a telephone line.

The present invention is not limited to the above-described embodiment, but can be embodied in appropriate modes by making appropriate design changes.

[0051]

As described above, the present invention can be connected to various types of processing machines provided with an NC (numerical control) device having a screen, and the items necessary for the operation of the connected processing machines are described using video information. A video teaching device for a processing machine for teaching, comprising: video information recording means for recording, as video information, items necessary for the operation of each of the connectable processing machines by dividing items necessary for the operation into items; Video playback means having a screen for displaying video information recorded in the means, and recording position information and control information for each item of the video information for use in reproducing the video information recorded in the video information recording means. By inputting a desired item by a video control information storing means storing the video control information storing means, based on the recording position information stored in the video control information storing means, The video information of the desired item for the processing machine recorded in the video information recording means is displayed on the screen of the video reproducing means, and the NC is operated by the operator operating the processing machine in accordance with the instruction on the reproduction screen. Video playback processing for performing processing such as continuation, pause, jump to another item, and the like of the playback video information based on control information stored in the video control information storage means in accordance with operation information input from the device. since it is configured and means Bei Ete, the necessary matters concerning the operation of various processing machines, it is possible to educate clarity to the operator.

In addition, instead of simply letting the video information flow and teaching one way, the operator is allowed to actually operate the processing machine in accordance with the instructions on the video information reproduction screen, and the NC is performed based on the actual operation. Processing such as continuation, pause, jump to another item, etc. of the playback video information is performed in accordance with the operation information input from the apparatus. It is possible to educate by omitting the matter, so that the operator can learn the operating method of the processing machine most efficiently and in the shortest time.

Further, for example, in the case of an education in which an operator inquires about a matter which cannot be understood, and the matter is explained again, it is necessary to clearly distinguish the matter which the operator himself can understand from the matter which cannot be understood. On the other hand, according to the present invention, the operator only has to actually perform the operation of the processing machine in accordance with the instruction on the playback screen of the video information, so that the operator learns the operation method of the processing machine without any rationale. be able to.

[0054]

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing an example of a processing line for implementing the present invention.

FIG. 2 is a perspective view showing an appearance of a turret punch press machine arranged on the processing line.

FIG. 3 is a plan view showing an arrangement of a turret mold mounting station.

FIG. 4 is a block diagram illustrating a hardware configuration of an NC device that controls the turret punch press.

FIG. 5 is a front view showing an operation panel surface of the NC device.

FIG. 6 is a perspective view showing an external structure of a video teaching device for a processing machine according to an embodiment of the present invention.

FIG. 7 is a block diagram illustrating a hardware configuration of a reproduction processing device of the video teaching device for a processing machine.

FIG. 8 is an explanatory diagram showing storage contents of an IC card used in the reproduction processing device.

FIG. 9 is an explanatory diagram showing recorded contents of an explanatory video.

FIG. 10 is a flowchart showing a video playback method using an explanatory video.

FIG. 11 is an explanatory diagram showing recorded contents of a work support video.

FIG. 12 is an explanatory diagram of a video network.

FIG. 13 is a perspective view showing another embodiment of a video teaching device for a processing machine.

[Explanation of symbols]

 Reference Signs List 9 turret punch press machine 12 NC device 21 video teaching device for processing machine 43 CRT of NC device 52 VTR 53 reproduction processing device 54 IC card 56 video tape cassette 60 connector 61 remote control 62 headphone set 75 panel

Claims (1)

(57) [Claims] 1. A video teaching device for a processing machine which can be connected to various processing machines provided with an NC (Numerical Control) device having a screen and educates necessary items for operation of the connected processing machine using video information. A video information recording means for recording, as video information, items necessary for the operation for each of various connectable processing machines, and video information recorded in the video information recording means. Video playback means having a screen to be displayed; and video control information for storing recording position information and control information for each item of the video information for use in playing back video information recorded in the video information recording means. Storage means, and when the operator inputs desired items, based on the recording position information stored in the video control information storage means, the video information recording means The video information of the desired item for the recorded processing machine is displayed on the screen of the video playback means, and the operator operates the processing machine in accordance with the instructions on the playback screen to input the operation information from the NC device. depending on the information, based on said video control information storage means stored control information, continuation of the reproduction video information, pause, equipped with a video reproduction processing means for performing processing such as jump to another item A video teaching device for a processing machine.