JPS6159485A - Display of compound unit - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical field to which the invention pertains] The present invention relates to a display device for a compound device, and more specifically, in a compound device in which a large number of devices are connected to an operation panel via each NC device, the present invention relates to a display device for a compound device. The present invention relates to a display device for a multifunction device that is capable of visually displaying operating procedures, etc. on the operation panel.

[Technical background of the invention]

For example, in recent automated press equipment, a large number of devices such as the press device, inter-press transfer device, intra-press transfer device, etc. are each controlled by a dedicated NC device, and each of these NC devices is controlled by a central control unit with an operation panel. The operator operates these various devices via an operation panel.

By the way, "2. Various NCs connected to one operation panel"
Various operating states or troubles may occur in the equipment and various control objects connected to this NC device, and in order to respond appropriately to these problems, operators must It is required to accurately grasp the status of various control objects connected to this NC device.

However, conventional operation panels include various NC devices and
There is no means for notifying the status of various control objects connected to the C device, and various NC devices and this N
The scale of the entire system, including the various control objects connected to the
It has been difficult to accurately grasp the status of the device and various control objects connected to the NC device.

In addition, in such complex devices, the operating procedures of various devices are complicatedly related, and when giving certain instructions to a device, it is often necessary to consider the status of other related devices, It required a skilled operator to operate it.

[Purpose of the invention]

The present invention was made in view of the current situation, and
To provide a display device for a compound device in which a large number of devices are connected to an operation panel through NC devices, and the status and operating procedures of each device can be visually displayed on the operation panel. With the goal.

[Summary of the invention]

In summary, the display device for a compound device of the present invention is a compound device in which a plurality of control devices each having a control object are operated by a single operation panel, and the operation panel is provided with a character code string. a display unit that visually displays a character string corresponding to a character code string; a storage area that stores in advance a character code string corresponding to a character string expected to be displayed; a processing device that supplies the character code string read from area a to the display section, and the processing device reads an appropriate character code string from the storage area in response to a signal given from each of the plurality of control devices. It is designed to read out and provide it to the display section, and displays character strings indicating the status of each of the control devices and the control objects under the control of the control devices, operating procedures to be performed by the operator, etc. on the control panel. It is designed so that it can be displayed visually.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention, and the illustrated embodiment is a multi-die mold in a press that moves back and forth and up and down while clamping the material to be processed between a plurality of dies in a press device. This is assumed to be an intermediate conveyance device.

In the figure, 100 is an operation panel, 200 and 300 are NC devices, the NC device 200 controls the operation of the motor 21 for forward and backward movement, and the NC device 300 controls the operation of the motor 31 for up and down movement. Further, 22 and 32 are drivers for driving each motor 21 and 31, and 23 and 33 are drivers for each motor 21.
- 31 pulse generators for position feedback are each shown.

The control operation for the NC devices 200 and 300 to drive the respective motors 21 and 31 is conventionally known.
The structure and operation of the C device 200 will be explained using the C device 200 as a representative. A memory 20 that includes an area for storing excitation patterns given to the 21 and a data area for temporarily storing data.
3 and a processor 204, the processor 2
04 executes a program stored in the memory 203 in response to signals given from the operation panel 100 via the interface 201 and signals fed back from the pulse generator 23 via the interface 202 to create an excitation pattern for the motor 21. is determined, and this excitation pattern is output to the driver 22 via the interface 202.

In the illustrated embodiment, only the output of the pulse generator 23 is shown as the signal fed to the NC device 200, but in addition to this, for example, a signal indicating that a transport device (not shown) has reached the origin is also used. A signal for detecting that the transport device has run out of control, a signal for detecting that an overload has been applied to the motor 21, and other signals may be added to the interface 202.

Also, since the structure and operation of the NC device 300 are basically the same as those of the NC device 200, a redundant and redundant explanation will be omitted, but the interface 301 of the NC device 300 is directly connected to the operation panel 100. NC device 2 without being
It is connected to the operation panel 100 via the interface 201 of 00.

A characteristic feature of this embodiment is that signals indicating the state of the controlled object, the processing steps of the NC devices 200 and 300, etc. are transmitted to the operation panel 100 via the interface 201, and the operation panel 100 Based on signals indicating the state of the object, processing steps of the NC devices 200 and 300, etc., an appropriate display is displayed by the operator.

That is, the operation panel 100 has a memory 101 which has an area for storing control programs and an area for storing data, and performs various controls according to the programs stored in the memory 101, like the conventionally known operation panel of this kind. A control processor 102 that executes operations, an interface 103 that connects the operation 1ioo to an NC device, a switch group 104 consisting of switches through which the operator manually inputs various instructions, the switch group 104 and the control processor 1.02. In addition to inputting the interface 105 etc. that connects the
A known display tube 106 displays characters such as symbols, and a large number of character patterns are stored in advance at each memory address.The character patterns to be displayed on the display tube 106 are read out from the second memory address and displayed. tube 106
A character generator 107 to be given to the character generator 107, a register 108 for temporarily storing a character code string specifying the memory address of the character generator 107, a memory in which a display program and a plurality of types of character code strings to be displayed on the display tube 106 are stored in advance. ]09, State and NC of controlled object
A display processor 110, a processor 110, and a register 1 that read out appropriate character code strings from the memory 109 in response to signals indicating processing steps of the devices 200 and 300, etc.
08 is provided, and an appropriate display corresponding to the state of the controlled object, the processing steps of the NC devices 200 and 300, etc. can be displayed on the display tube 106.

Next, the operation of this embodiment will be explained with reference to item 1.

First, after turning on the power and enabling the control processor 102, when the operator operates the start switch included in the switch group 104 and inputs a start instruction, this start instruction is sent to the control processor via the interface 105. 1
02, and the control processor 102 is given to the memory 10
The program in 1 is read out while executing the control operation, and in the process of executing the control operation, various control signals are sent to the processor 204 via the interfaces 103 and 201.
and further to the processor 304 via the interface 301.

The processor 204 reads programs and data from the memory 203 in response to control signals given from the control processor 102, and controls the operation of the object to be controlled.

In this embodiment, the control target of the NC device 200 is the motor 21 that moves the workpiece laterally between the molds in the press, so the processor 204 is controlled by the control processor 102.
For example, when a forward command or a signal indicating a forward speed is given as a control signal, the forward speed corresponding to the position of the motor 21 at that time is determined, and the excitation pattern that can obtain this forward speed is determined. The excitation pattern is applied to the driver 22 via the interface 202. Then, the driver 22 amplifies this excitation pattern to drive the motor 2.
1 to move the material to be processed laterally from one mold to the next mold. At this time, the output of the inter-position pulse generator 23 of the motor 21 is provided to the processor 204 via the interface 202.

Also, when the control processor 102 gives a backward command or a signal indicating the backward speed as a control signal, the processor 204 operates in the same manner as described above to rotate the motor 21 in the opposite direction and start the next general transport. Prepare for action.

On the other hand, the processor 304 also reads programs and data from the memory 303 in response to control signals given from the control processor 102, and controls the operation of the controlled object. In this embodiment, the control object of the NC device 300 is to raise a workpiece from a mold in a press by lifting a clamper (not shown), or to move a workpiece to a mold in a press. Since the motor 31 is for moving down by 1 to place a 1-1 downward movement, when the processor 304 is given, for example, a 1-up instruction from the control processor 102 as a control signal, or a signal indicating a rising speed, the processor 304 controls the motor at that time. A rising speed corresponding to the position 31 is determined, an excitation pattern that can obtain this rising speed is determined, and the determined excitation pattern is provided to the driver 32 via the interface 302. Then, the excitation pattern of the driver 32 is amplified and the motor 31 is driven to lift the material to be processed from above a certain mold. Note that the position of this motor 31 is given to the processor 304 via the interface 302 as the output of the pulse generator 33.

Also, when a descending instruction or a signal indicating the descending speed is given as a control signal from the control processor 102, the processor 304 operates in the same manner as described above, rotates the motor 31 in the opposite direction, and moves the workpiece to the next metal. Place it on the mold.

By repeating the operations of the NC device W2O0 and the NC device 300 at appropriate timing, the workpiece G is transferred 1111 between the molds in the Opress, and a multi-stroke press operation is performed.

By the way, some kind of trouble (
For example, suppose that a clamper that clamps a workpiece drops the workpiece on the way, etc.) and the workpiece is fired.

If the process is repeated in this state, the mold will break.
It is necessary to stop the equipment because there is a risk of developing into more serious troubles such as, etc., and it is also necessary to make the operator aware of the location of the trouble and the content of the trouble for prompt recovery.

In this embodiment, the operations to be performed by the operator in such a case can be sequentially displayed on a display tube 106 provided at 100 on the operation panel.

For example, assume that a clamper (not shown) is provided with a proximity sensor 34 that turns on when it detects that a workpiece approaches, and that this proximity sensor 34 is under the control of the NC device 300.

The output of the proximity sensor 34 is always given to the processor 304 via the interface 302, and when the device is operating normally, the output of the proximity sensor 34 is turned on when the clamper clamps the workpiece, and the processing starts. The OFF state occurs when the object is unclamped, but if the output of the proximity sensor 34 becomes OFF at any other timing during the process, the processor 304 determines that there has been a fall accident of the object.

When a fall accident of the workpiece occurs in a certain clamper, the processor 304 sends a signal to the effect that the fall of the workpiece has occurred and a signal indicating the identification number of the clamper in which the fall accident has occurred to the interfaces 301, 201, 10
3 to the display processor 110 and control processor 101.

First, when the control processor 101 learns that a fall accident has occurred, it generates an emergency stop signal, and this emergency stop signal is sent to the processor 204 via the interfaces 103 and 201.
and is further transmitted to the processor 304 via the interface 301. In response, processors 'l' 204 and 304 stop motors 22 and 32, respectively, and bring the entire system to an emergency stop.

On the other hand, the data area of the memory 109 stores in advance a character code string representing a message sentence to be displayed in response to the occurrence of an expected trouble or condition, and the display processor 110 is connected to the NC device via the interface 103. In response to a signal transmitted from the memory 109, a message sentence is generated and a character code string is read out from the memory 109, and this character code string is written to the register 108 via an interface 111.

For example, if a signal indicating that a falling workpiece has occurred and a signal indicating the identification number of the clamper where the falling accident occurred is given as described above, the message will be [Material falling] Cn clamper inspection] ( , n indicates the number of the clamper where the accident occurred), the data area of the memory 109 is pre-stored with character code strings such as [falling material] and [inspection of clamper No. 0], and the display is The processor 110 for
A character code string ``material falling'' is read out from the memory 109 based on a signal indicating that a falling accident of the attached workpiece has occurred and a signal indicating the identification number of the clamper in which the falling accident has occurred.

This character code string is then given to the register 108 via the interface 111, and the character code string given to the register 108 is sent to the character generator 107.
is given as a read address.

Therefore, the character pattern [Material Falling] is sequentially read out from the character generator, and this character pattern is given to the display tube 106.
6 displays the words [Material Falling].

When the operator sees the display on the display tube 106 and recognizes that a [material falling accident] has occurred, he switches the switch (G1) in the switch group 104.
When the [fi confirmation] switch is turned on, this is sent to the control processor 102 via the interface 105, and in response, the control processor 1.04 sends a [confirmation completion signal] via the interface 103 to the display processor 1. .10.

When the operator recognizes that the [material falling accident] has been confirmed by this [confirmation completion signal], the display processor 110 generates the character code string to be displayed next, that is, the character code string [No. 0 clamper inspection]. Read from memory 109 and interface this character code string]11
The character code string given to the register 108 is given to the I/register 108 via the character generator 107.
is given as a read address.

Therefore, the character pattern "No. 0 clamper inspection" is read out from the character generator, and this character pattern is given to the display tube 106, so that the characters "ba (ni clamper inspection)" are displayed on the display tube 106. .

The operator inspects the No. 0 clamper by looking at the display on the display tube 106.

Although the above example shows a display example in the case where an accident occurs where a workpiece falls, the present invention can respond to any anticipated trouble other than the above according to the character code string prepared in the memory 109. Of course, in addition to the display in case of trouble, for example, a character code string indicating the operation procedure that the operator should perform at the time of initial setting etc. is stored in advance in the memory 109, and the operator operates the switch 104 to display the NC. device 20
The next operating procedure may be sequentially displayed on the display tube 106 each time the operation to which 0.300 responded is completed.

Further, in the above example, the NC device 200 for horizontal movement and the NC device 300 for vertical movement are provided, and the workpiece is transported between the molds in the press. It goes without saying that there is no problem even if another NC device other than this, for example, an NC device for press lift control, etc., is installed below.

In addition, in section 1, only the interface 201 is the operation panel 1.
Although an example in which the interfaces of all NC devices are directly connected to the control panel 100 is shown, it is also possible to connect the interfaces of all the NC devices in parallel with the interface of the operation panel 100.

Furthermore, in the above example, when displaying a plurality of message sentences continuously, the message sentences are read from the memory 109 and sequentially written to the register 108 each time the operator presses the [confirmation switch]. If sufficient capacity is given to register 108, a series of message sentences can be stored in register 10.
It is also possible to write the register 108 all at once in the order of 8 addresses and shift the register 108 each time the operator presses the [confirmation switch]. It is possible to reduce the workload and also improve the update speed of the displayed message text.

Furthermore, in the above, the operation panel 100 independently includes the control processor 102 and the display processor 110,
Although an example has been shown in which each processor is provided with memories 101 and 109, it is also possible to use the same control processor, 0'2, display processor 110, memory 101, and memory 109 by dividing their functions. do not have.

〔Effect of the invention〕

As explained above, according to the present invention, the status of each controlled object and the operating procedures to be performed by the operator are displayed on the operation panel, so that the operator can quickly and accurately deal with various anticipated troubles. Therefore, many secondary troubles can be prevented, and the recovery time from troubles can be shortened. Also, even operators who are not particularly proficient in the entire system can operate complex systems without making mistakes in complicated procedures. It becomes possible to operate.

Further, according to the present invention, it is possible to accurately grasp the state of a controlled object installed in a remote location from the operation panel.

Further, according to the present invention, a large number of message sentences to be displayed according to the type of the device as a whole are prepared in advance as character code strings in the memory, and a large number of message sentences to be displayed according to the type of the device as a whole are prepared in advance as character code strings. Since the information is read out and displayed, it is possible to reduce the number of signal lines and the communication time between the NC device and the operation panel.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of one embodiment of the present invention.

Claims (1)

[Scope of Claims] (a) A complex device in which a single operation panel operates a plurality of control devices, each of which has a control object, (b) The operation panel is configured to control the control device when given a character code string. A display section that visually displays a character string corresponding to a character code string, a storage area that stores in advance a character code string that corresponds to a character string that is expected to be displayed, and a character code read from the storage area. (c) the processing device reads the character code string from the storage area in response to a signal applied from each of the plurality of control devices, and displays the character code string on the display section; A display device for a composite device, characterized in that a display device is provided to