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EP-4043145-B1 - INFORMATION PROCESSING DEVICE AND INFORMATION PROCESSING SYSTEM

EP4043145B1EP 4043145 B1EP4043145 B1EP 4043145B1EP-4043145-B1

Inventors

  • KANTO, KENTA

Dates

Publication Date
20260506
Application Date
20210126

Claims (5)

  1. An information processing device (10, 10A) for controlling a liquid discharger (3) which discharges liquid so as to move chips occurring from a workpiece in a machine tool (1), comprising: an image acquiring portion (102) configured to acquire image data (112) of an inside of the machine tool (1), imaged by an imaging device (4); a detector (103) configured to detect a target to which the liquid is discharged by the liquid discharger (3) from the image data (112), wherein the target is the chip occurring from the workpiece in a machine tool; a position acquiring portion (101) configured to acquire position information (111) of a table (16) installed in the machine tool (1), wherein the table (16) is configured to move, and wherein the workpiece is placed on the table (16); and a controller (104) configured to control the liquid discharger (3) which is installed in the machine tool (1) and which discharges the liquid toward the target associated with the table (16), wherein the position acquiring portion (101) is configured to acquire first position information of the table (16) at the time the table (16) is imaged by the imaging device (4) and second position information of the table (16) after the table (16) moves from the first position information; and the controller (104) is configured to control at least one of a position, orientation, and discharge pressure of the liquid discharger (3) based on (i) a position of the target at the time the table (16) is imaged by the imaging device (4), and (ii) the first position information and (iii) the second position information acquired by the position acquiring portion (101), after the movement of the table (16).
  2. An information processing device (10, 10A) for controlling a liquid discharger (3) which discharges liquid so as to move chips occurring from a workpiece in a machine tool (1), the information processing device (10, 10A) comprising: a position acquiring portion (101) configured to acquire position information (111) of a table (16) installed in the machine tool (1), wherein the table (16) is configured to move, and wherein the workpiece is placed on the table (16); and a controller (104) configured to control the liquid discharger (3) which is installed in the machine tool (1) and which discharges the liquid toward a target associated with the table (16), wherein the target is the chip occurring from the workpiece in a machine tool, wherein the controller (104) is configured to control at least one of a position, orientation, and discharge pressure of the liquid discharger (3) according to the position information (111) acquired by the position acquiring portion (101), after the movement of the table (16); the liquid discharger (3) includes a first nozzle (31a) used for discharging the liquid and a second nozzle (31b) installed at a position different from that of the first nozzle (31a); and the controller (104) is configured to discharge the liquid from the first nozzle (31a) when no obstacle is present in a path from the first nozzle (31a) to the target to which the liquid is discharged, and discharge the liquid from the second nozzle (31b) at the time an obstacle is present in the path from the first nozzle (31a) to the target.
  3. An information processing device (10, 10A) for controlling a liquid discharger (3) included in a machine tool discharging liquid so as to move chips occurring from a workpiece, the information processing device (10, 10A) comprising: a position acquiring portion (101) configured to acquire position information (111) of a table (16) installed in the machine tool (1), wherein the table (16) is configured to move, and wherein the workpiece is placed on the table; and a controller (104) configured to control the liquid discharger (3) which is installed in the machine tool (1) and which is discharges the liquid toward a target associated with the table (16), wherein the target is the chip occurring from the workpiece in a machine tool, wherein the controller (104) is configured to control at least one of a position, orientation, and discharge pressure of the liquid discharger (3) according to the position information (111) acquired by the position acquiring portion (101), after the movement of the table (16); wherein the controller (104) is configured to obtain an angle formed by a straight line connecting the liquid discharger (3) and the target at the reference time and a straight line connecting the liquid discharger (3) and the target at the time of discharging using a horizontal movement distance at the time, the target is located on the horizontally moving table (16), and the table (16) horizontally moves during a period from the time of acquiring image data (112) as a reference time to the time of discharging the liquid, and control the liquid discharger (3) according to the angle.
  4. The information processing device (10, 10A) according to claim 2 or 3, further comprising: an image acquiring portion (102) configured to acquire image data (112) of an inside of the machine tool (1), imaged by the imaging device (4); and a detector (103) configured to detect a target to which the liquid is discharged by the liquid discharger (3) from the image data (112), wherein the controller (104) specifies a change amount of the target from the time of acquiring the image data (112) as the reference time to the time of discharging the liquid, obtains a position of the target at the time of discharging, and controls a nozzle (31) of the liquid discharger (3) with respect to the position.
  5. The information processing device (10, 10A) according to any one of claims 1 to 3, wherein a target region to which the liquid is discharged is determined in advance with reference to the table (16); and the controller (104) is configured to specify a change amount of the target region from a reference time to the time of discharging the liquid, obtain a position of the target region at the time of discharging, and control the liquid discharger (3) with respect to the position.

Description

TECHNICAL FIELD The present disclosure relates to an information processing device and an information processing system. BACKGROUND ART When a workpiece to be processed is processed by a machine tool, coolant liquid may be discharged to a predetermined place. When the deposition amount of chips occurring from the workpiece by processing increases, the continuation of processing is difficult. Therefore, in the machine tool, the chips occurring in processing are removed by discharging liquid such as coolant liquid. Patent Literature 1 describes a technique of detecting the deposition situation of chips inside a machine and cleaning a place determined that the chips are required to be removed. Patent Literature 2 describes a coolant supply system for grinding machines with carriers supporting multiple nozzles. The system adjusts nozzle position and orientation to follow a changing machining location, improving cooling efficiency. PRIOR ART DOCUMENT PATENT DOCUMENT Patent Literature 1: JP 2016-120589 A Patent Literature 2: GB 2 259 267 A (BLOHM MASCHINENBAU GMBH [DE]) 10 March 1993 (1993-03-10) SUMMARY OF INVENTION PLOBLEM TO BE SOLVED However, various mechanisms are driven by a drive mechanism inside the machine tool, and the position of a target to which liquid is discharged also moves during processing. It is difficult to discharge the liquid with respect to the target thus moving. Therefore, an object of the present disclosure is to accurately discharge liquid with respect to a moving target. MEANS FOR SOLVING PROBLEM The invention is defined by independent claims 1-3. Optional aspects of the invention are provided by dependent claims 4-5. The present disclosure can also provide an information processing system. These general and specific aspects may be achieved by a system, a method, a computer program, and a combination thereof. EFFECTS OF INVENTION According to the present disclosure, liquid can be accurately discharged with respect to a moving target. BRIEF DESCRIPTION OF DRAWINGS [FIG.1] FIG. 1 is a block diagram illustrating the configuration of a machine tool.[FIG.2] FIG. 2 is an image of the inside of a machine tool.[FIG.3] FIG. 3 is a block diagram illustrating the configuration of an information processing device according to a first embodiment.[FIG.4] FIG. 4 is a schematic view describing a change in the position of a target and control of liquid discharge.[FIG.5] FIG. 5 is a flowchart describing the specification of a position to be detected and a process of liquid discharge in the information processing device according to the first embodiment.[FIG.6] FIG. 6 is a block diagram illustrating the configuration of an information processing device according to a second embodiment.[FIG.7] FIG. 7 is a schematic view describing a change in the position of a target and control of liquid discharge.[FIG.8] FIG. 8 is a flowchart describing the specification of a position to be detected and a precess of liquid discharge in the information processing device according to the second embodiment.[FIG.9] FIG. 9 is a schematic view describing a change in the position of a target and control of liquid discharge. DETAILED DESCRIPTION Hereinafter, an information processing device, a machine tool, and an information processing system according to each embodiment will be described with reference to the drawings. In the following description, the same components are denoted by the same reference numerals, and the description thereof is omitted. In the "machine tool" described below, a workpiece composed of a metal to be processed, or the like is processed into a desired shape by cutting or grinding or the like. The "information processing device" and the "information processing system" cause a liquid discharger provided in the machine tool to discharge liquid to a predetermined target position. Here, the phrase "target associated with a movable portion" means, for example, chips occurring from a workpiece during processing, and particularly, chips associated with a moving member such as a (processing) table. The phrase "associated with" means a state where the chips also move with the movement of the movable portion, such as a case where the chips are placed on the movable portion, a case where the chips are placed on a workpiece or the like placed on the movable portion, or a case where the chips are caught by the movable portion. By discharging the liquid to the chips, the chips can be caused to move to remove unnecessary chips. For example, the "target position" is a position to which liquid is discharged, and basically corresponds to the position of chips to be removed. [First embodiment] <Machine tool> An example of a machine tool 1 according to a first embodiment will be described with reference to FIG. 1. The machine tool 1 processes a workpiece to be processed. By processing the workpiece, chips occurring from the separation of a part of the workpiece are accumulated inside the machine tool 1. For example, the m