JP2014233741A - Simulation system and method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To confirm processing of a workpiece in a first stage processing (for example, first bend processing) in a processor.SOLUTION: Provided is a simulation system S for creating simulation operation of bend processing, and performing bend processing efficiently. The simulation system S comprises notification means for giving a notification of notification information, the notification means gives a notification of the notification information indicating presence or absence of mold tool interference related to table operation after bend. In addition, the notification information is configured to display the presence or absence of the mold tool rear side interference by a warning message, and machinery operation for avoiding a risk is performed based on selection of an operator.

Description

  The present invention relates to a simulation system and method, and more particularly to a simulation system and method for avoiding danger in bending.

  Conventionally, in a bending process, after one bending process is completed, the upper table is raised by a foot pedal when the part is pulled out from the mold. In this case, the upper table speed cannot be controlled by the foot pedal. That is, the work is performed at a constant table speed.

  See also Patent Document 1.

Japanese Patent Laid-Open No. 2002-082710

  In the bending process, when a part is pulled out from a mold after completion of one bending process, when an upper table is raised, an operator usually holds the part to prevent it from falling. However, depending on the part shape, it may interfere with the part on the back side of the punch. In this case, since the interfering portion cannot be confirmed by the operator, there is a problem in that the worker is dangerous because the part is dragged and lifted by the punch without the operator's expectation while the upper table is raised.

  The present invention enables a simulation display of the entire bending process (approach, before and after bending, table raising operation, parts extraction operation, material handling operation, movement to the next process) of one part.

  Then, in one process, when the upper table rises after bending, it detects when the parts are dragged by the punch and moves up. The goal is to avoid danger by ascending the vehicle at a speed that can ensure safety.

  The present invention is for solving the above-mentioned problems, and the invention according to claim 1 is a simulation system that generates a bending simulation operation and efficiently performs the bending process. Means for notifying the presence or absence of interference between the part and the mold related to the table operation after bending.

  According to a second aspect of the present invention, the specific operation after bending is a table operation after bending, and the notification information is a warning message about the presence or absence of interference on the back side of the mold, and includes a deceleration operation for avoiding danger. The operation is performed based on the selection of the operator.

  The invention according to claim 3 is characterized in that the mold is a vendor mold and includes a punch holder, a die, a die rail, a die holder, a die block, and a back gauge.

  The invention according to claim 4 is a simulation method for efficiently generating a bending operation by generating a simulation operation for the bending process, comprising a notifying means for notifying information on the bending process, and a part related to the table operation after bending. It is characterized by notifying information regarding presence / absence of interference of the mold.

  Since the simulation operation can be confirmed by the human machine interface HMI, the operation related to the operator such as material handling can be confirmed. For example, it is possible to automatically detect an unexpected danger in advance by an operator and reduce the upper table ascent speed for avoiding the danger. Moreover, since workability can be confirmed in advance, there is an effect that it is possible to perform efficient bending.

It is the schematic which shows the outline of a simulation system. It is explanatory drawing explaining a warning display method. It is explanatory drawing explaining the timing of a warning display. It is a flowchart which shows operation | movement of a simulation system. It is a flowchart which shows operation | movement of a simulation system. It is explanatory drawing explaining operation | movement of a simulation system. It is explanatory drawing explaining operation | movement of a simulation system.

  The simulation system S will be described with reference to the drawings.

  Please refer to FIG. The simulation system S includes an automatic programming generation device 1 (comprising a computer device), a machining data generation module m (which is a part of the automatic programming generation device 1), machining data kd, and a data management server device 2 (computer). A component data management database DBa, a machining data management database DBb, and a bending process machine 3. These can communicate with each other via the network L.

  The automatic programming generation device 1 includes a main body 1a, a display device 1b, and an input device 1c, acquires component data bd from the component data management database DBa, and processes data kd (die selection) for the component data bd. , Bending order generation, mold layout, abutting position, simulation operation data) are automatically generated. The automatically generated machining data kd is stored in the machining data management DBb.

  The machining data generation module m is a part of the automatic programming device 1 and automatically generates die selection, bending order generation, die processing layout generation, abutment position, and simulation operation that can be processed on the part data bd. The simulation operation includes information on presence / absence of interference between the punch and the part when the table is raised after bending.

  The human machine interface HMI performs bending program input / output, display, processing machine operation, simulation display, and warning message display.

  Please refer to FIG. This warning message is displayed on the human machine interface HMI on the warning message screen G when there is an interference between the punch and parts when the table is raised after bending in the simulation operation data in the selection process. When “Yes” is selected, the deceleration value of the ascending speed is transmitted to the upper table ascending command. As a result, the rising speed is reduced to a speed at which the worker can safely take out the parts.

  The bending processing data includes processing data such as bending order, mold, abutting operation, and simulation operation.

  The data management server device 2 includes a main body 2a, a display device 2b, and an input device 2c, and is a device that stores component data bd and machining data kd.

  The component data management database DBa stores component data bd.

  The machining data management database DBb stores punching data and bending.

  The bending process processing machine 3 reads a bending processing program from the processing data management database DBb and performs bending processing of each part.

  The foot pedal 3c instructs the ascent / descent of the upper table of the bending process processing machine 3.

  The above bending process machine 3 will be described in more detail. In FIG. 1, the left-right direction with respect to the paper surface is the X axis, the vertical direction with respect to the paper surface is the Y axis, and the vertical direction with respect to the paper surface is the Z axis. The bending process processing machine 3 includes a main body 3a, a human machine interface HMI, a foot pedal 3c, and a warning message screen 3b.

  There is an upper table and a lower table between the side frames arranged on both sides of the main body, and abutment is made by the cooperation of a punch P provided with a punch holder on the upper table and a die D provided with a die holder on the lower table. It is a bending machine that performs a bending process on a part positioned in a part.

  Please refer to FIG. When it is determined that the part (or workpiece) W and the punch P interfere with each other and the upper table decelerates, an operation in which the operator takes out the part W is shown. The punch P rises in the directions of the arrows AR1 to AR2. Then, the part W is moved in the direction of the arrow AR3. By moving the part to the area ER, the part W and the punch P are separated without interference. The part W is moved in the direction of the arrow AR4 and taken out.

  Please refer to FIG. The operation of the simulation system S is shown. The simulation system S that generates a bending simulation operation and performs the bending includes an informing means for informing notification information, and the informing means performs mold interference related to a table operation after bending (for example, a table raising operation). Announce the presence or absence of. Further, the notification information is a system in which presence / absence of interference on the back side of the mold is displayed by a warning message, and the machine operation for avoiding danger can be performed based on the operator's selection.

  In step SA01, the component data bd is acquired from the “component data management database DBa”.

  In step SA02, the bending order, the mold, and the abutting position are calculated in “in the automatic programming apparatus 1”.

  In step SA03, a simulation operation is generated based on the above information. At this time, in each bending step, the presence or absence of interference between the part and the mold is detected when the table is raised after bending, and a flag is stored in the simulation operation data.

  In step SA04, the generated “bending process data kd” is automatically stored in the process data management database DBb.

  In step SA05, the operations up to step SA14 are repeated for the number of processes.

  In step SA06, the bending data kd is read from the machining data management database DBb, and bending is performed. When a process is selected, simulation display of each process is executed.

  In step SA07, the “descent pedal” of the foot pedal 3c is depressed to perform bending.

  In step SA08, the "rising pedal" of the foot pedal 3c is depressed. As a result, rising of the upper table after bending starts.

  In step SA09, it is determined whether there is interference between the part and the mold when the table is raised after bending. If it is determined that there is interference, the process proceeds to step SA10. If it is determined that there is no interference, the process proceeds to step SA13.

  In step SA10, notification information (warning message or the like) is displayed. For example, as shown in FIG. 2, notification information such as “Parts and molds interfere with screen G when the table is raised. Do you want to reduce the table rising speed?” Is notified.

In step SA11, it is determined whether or not “Yes” is selected. If “yes” is selected, the process proceeds to step SA12. If “yes” is not selected, the process proceeds to step SA13.

  In step SA12, the deceleration value of the ascending speed is transmitted to the “upper table ascending command”.

  In step SA13, the upper table is raised.

  In step SA14, the process is repeated for the number of processes.

Please refer to FIG. The operation of the part and mold interference inspection when the table is raised is the table operation after bending. (Details of step SA03 in FIG. 4)
In step SB01, the bent parts and the mold are arranged.

  In step SB02, the interference flag is turned off (initialized).

  In step SB03, the processing up to step SB07 is repeated until the upper table ascending end is reached.

  In step SB04, the die (punch P) is raised by the plate thickness.

  In step SB05, interference between the part and the mold model is detected.

  In step SB06, it is determined whether or not there is interference. If it is determined that there is interference, the process proceeds to step SB08. If it is determined that there is no interference, the process proceeds to step SB07.

  Refer to FIGS. As shown in FIG. 6, when the part (work) W is bent by the punch P, FIG. 7 shows the case where the punch P and the part W have interference.

  In step SB07, the process is repeated until the upper table ascending end is reached.

  In step SB08, the interference flag is turned ON.

  Although the case where the upper table is raised is described, the case where the upper table is lowered is also applicable. In order to switch the upper table ascent speed, a warning message is displayed and the operator selects it. However, it is also possible to switch automatically. Although the case where there is interference between the part and the punch has been described, the present invention can also be applied when there is interference with a punch holder, die, die rail, die holder, die block, back gauge, and the like.

The present invention is not limited to the embodiments of the invention described above, and can be implemented in other modes by making appropriate modifications.

S Simulation System 1 Automatic Programming Generation Device 1a Body 1b Display Device 1c Input Device (Keyboard, etc.)
2 Data management server 2a Body 2b Display device 2c Input device 3 Bending process machine 3a Body 3b HMI
3c Foot pedal W Work P Punch die D Die die DBa Parts data management database DBb Machining data management database

Claims (4)

This is a simulation system that generates bending operation and performs bending efficiently.
A simulation system comprising notification means for notifying notification information, wherein the notification means notifies the presence or absence of interference between a part and a mold related to a table operation after bending.   2. The simulation system according to claim 1, wherein the notification information is a warning message indicating presence / absence of interference on the back side of the mold, and performs a mechanical operation including a deceleration operation for avoiding danger based on an operator's selection.   The simulation system according to claim 1, wherein the mold is a vendor mold and includes a punch holder, a die, a die rail, a die holder, a die block, and a back gauge. It is a simulation method that generates a simulation operation for the bending process and efficiently performs the bending process.
A simulation method comprising notifying means for notifying information on bending processing, and notifying information on presence / absence of interference between a part and a mold related to a table operation after bending.

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