DE202014007115U1 - Device for computer-aided control of machining centers for milling, drilling and / or turning machining - Google Patents

Abstract

Computer-aided control device (1) for milling, drilling and / or turning machining centers (2), in particular for computer-aided control of a machining center (2) which is automatically processed with workpieces (5, 9 ), Workpiece pallets (6) and / or tools (10) is supplied, the computer-aided control device (1) controlling a plurality of machine axes and at least one tool and / or workpiece spindle using machining programs and taking into account sensor data from peripheral devices, required actuators or Controls auxiliary units and, if necessary, communicates with further computer-aided control devices (7, 8) of automation systems (3, 4), characterized in that the computer-aided control device (1), in addition to the control tasks mentioned, also takes on tasks for order organization by being responsible for the pending processing orders ( 20) based on be certain features, such as machining priority, existing blanks (9), number of pieces to be machined or stock and condition of required tools (10), an optimized flow chart (21) is created, which is displayed on a screen (11) connected to the computer-aided control device (1) and on this screen (11) the necessary operator activities are also shown, which must be prepared for an uninterrupted processing of the schedule (21).

Description

The invention relates to a computer-aided control device for milling, drilling and / or turning machining centers, in particular for computer-aided control of a machining center, which is automatically supplied by workpieces, workpiece pallets and / or tools by at least one automation system, wherein the computer-aided control device a plurality of Machine axes and controls at least one tool and / or workpiece spindle based on machining programs, taking into account sensor data from peripherals, actuates required actuators or ancillaries and optionally communicates with other computerized control devices of automation systems.

Such control devices for CNC machining centers are well known in the art. Their primary task is to control the machining center in such a way that machining of a workpiece is as effective as possible. In addition to the control of machine axes and in addition to the control of the tool or workpiece spindle, it is necessary to control the processes required for the machining, such as the supply of cooling lubricant, the integrated monitoring of tool breaks or the removal of chips and with the aid of a suitable Sensor technology to take into account processes requiring monitoring. For this purpose, today programmable logic controllers are used, which are often also an integral part of the control device. For machining centers linked to external automation systems, the control device of the machining center and in particular the integrated programmable logic controller and the control system of the automation systems must communicate with one another via interface signals in order to enable tool or workpiece replacement. Especially for automated machining centers, z. B. are intended for series or variety production, it is of great importance that the processing jobs are processed in an optimal order to minimize downtime of the processing machines can.

The DE 10 2004 048 039 A1 and the DE 10 2009 007 286 A1 Show solutions how manufacturing equipment, consisting of several machining centers and at least one automation system, can be controlled by a central control computer for the automatic loading and unloading of processing machines. The master computer communicates with the local computers of the processing machines and takes over the job management tasks. Thus, it is possible by a parent control computer to facilitate the operation and handling of a complete manufacturing plant. However, the described solutions are specially designed for large scale production plants and although they contain a complex range of functions for the interaction of many machining centers, they are too expensive for individual automated machining centers and too cluttered in their operation.

The EP 2 088 490 A2 also describes a production system for a large-scale manufacturing facility that manages the machining programs of processing machines and work programs of at least one robot by a production control device. In the EP 2 088 490 A2 it is described as disadvantageous if the processing machine or the robot contains the production control device. Therefore, a separate production control device is provided especially for complex production, which takes over the job organization and at the same time monitors the process. However, there is also the disadvantage that this represents a very complex and costly solution that is considered viable only for large-scale production facilities.

Based on the prior art, the present invention has the object to provide an easy-to-use and cost-effective solution for the organization and management of machining jobs on machining centers. Specifically, it is important to find such a solution for individual machining centers, which are supplied by automation systems with workpieces, workpiece pallets and / or tools, but do not belong to a complex production plant with a variety of other machining centers. The solution is intended to make it easier for operators to plan the jobs to be processed and to contribute to intuitive operation.

This object of the invention is in a computerized control device for milling, drilling and / or turning machining centers, in particular for computer-aided control of a machining center, which is automatically supplied by workpieces, workpiece pallets and / or tools by at least one automation system, the computerized control device a Controlling a plurality of machine axes and at least one tool and / or workpiece spindle by means of machining programs, thereby taking into account sensor data from peripheral devices, activating required actuators or ancillary units and possibly communicating with other computer-aided control devices of automation systems, solved in that the computerized control device in addition to the control tasks mentioned also takes over tasks for order organization by creating an optimized flowchart for the upcoming processing jobs on the basis of certain features, such as machining priority, existing blanks, number of pieces to be processed or inventory and condition of tools required, the is displayed on a screen connected to the computerized control device, and this screen also shows the required operator activities that must be prepared for uninterrupted execution of the schedule.

This invention facilitates the operation of a machining center over the known computerized control devices of milling, drilling and / or turning machining centers and also provides a cost effective extension of such control devices without the need for an additional host computer. The operator is assisted in scheduling the processing jobs to be processed one after the other by showing an optimized order of them. In addition, it will be shown which activities, such as the replacement of tools or sister tools, he must perform in order to process the schedule without interruption.

For the purposes of the present invention, the term "sister tool" is understood to mean a tool that has the same properties as an already existing tool that may already be in use. As soon as this already used tool exceeds the service life, ie has only insufficient properties for further use, it can be replaced immediately by the sister tool.

The dependent claims have advantageous developments of the invention to the content.

According to a preferred development, the computer-aided control device automatically adapts the flowchart to changed conditions, such as a deteriorated tool state, during the processing of the processing jobs.

According to a preferred development, the computer-aided control device automatically adjusts the flowchart in the event of an occurring error during the execution of a processing order in such a way that the next possible processing task is selected in the flowchart.

According to a preferred development, the flowchart created by the computer-aided control device can be manually adjusted by the operator.

According to a preferred refinement, the operator can specify by means of an indicator which processing orders of the flowchart are to be processed in a fixed sequence and which processing orders are dynamically executed in their sequence on the basis of certain features, such as processing priority, existing blanks, the number of pieces to be processed or the stock and condition of required tools the computerized control device can be adapted.

According to a preferred embodiment, the computerized control device displays the flowchart in the manner of displaying a playlist on a screen, and this playlist lists processing orders whose displayed order corresponds to the execution order. The order of the processing jobs can be changed manually by the operator via an input device.

The playlist can be displayed in a similar way as it is known from multimedia devices (eg Music Player). The flowchart also clearly and at a glance displays important information about the machining time, the workpieces or workpiece pallets, the tools required and the machining program.

In addition, in this particularly preferred embodiment, the flowchart in the playlist presentation can also be operated and changed in a similar intuitive manner, as is known from the widespread operating concepts of multimedia devices.

The processing jobs that are listed in the flowchart or the playlist, according to the present invention include the execution of a machining program for a clamping of a workpiece to be machined. For a variety of different tools can be used. A machining job can be the complete machining of a workpiece, if the workpiece can be completely machined with only one clamping, but can also represent only a partial machining, if the workpiece must be brought, for example after processing a machining program in another setup or the complete machining of several Machining programs.

According to a preferred development, each processing job in the playlist contains information about the tools required, about the workpiece pallet or the workpiece, about the expected start time, via the workpiece clamping and the machining program.

According to a preferred development, the tool information displayed in the playlist contains information about the completeness of the tools and the expected service life of the tools, taking into account sister tools.

According to a preferred development, the flowchart can additionally be displayed and edited on further display and input devices, which are located in particular in the area of the respective automation system.

According to a preferred development, the flowchart can additionally be displayed, evaluated and edited with higher-level business planning systems (ERP) or production management systems (MES).

According to a preferred development, the processing jobs to be processed are specified by a higher-level business planning system (ERP) or manufacturing management system (MES) and the computer-aided control device takes into account the scheduling specifications of this production-wide job control in addition to the local features and resources of the machining center when creating the optimized flowchart.

According to a preferred development, the computer-aided control device matches the flowchart for the machining jobs of the machining center with the flowchart of other machining centers that are linked to the same automation system.

Further details, features and advantages of the invention will become apparent from the following description with reference to the drawings. Show it:

1 a schematic representation of a machining center for milling, drilling and / or turning, and

2 a schematic representation of a flowchart.

1 shows in a plan view a schematic representation of a machining center 2 for milling, drilling and / or turning work.

The machining center 2 is with an industrial robot cell 3 as well as an additional tool magazine 4 connected. In a processing room 19 of the machining center 2 there is a workpiece 5 which of a tool 10 can be edited.

The machining center 2 has a computerized control device 1 on which with a screen 11 and a control panel 13 communicates.

The tools 10 are in the presentation according to 1 in a pick-up tool magazine storage 18 and in an additional tool magazine 4 , By means of a tool handling device 17 can use the tools between these two automation systems 4 . 18 be replaced.

The additional tool magazine 4 is with a control device 8th provided, which via a control panel 15 is operable.

In the industrial robot cell 3 are both workpieces 5 as well as workpiece pallets 6 and workpiece raw parts 9 stored, which from a likewise in the industrial robotic cell 3 located industrial robot 16 in the editing room 19 of the machining center 2 can be transported or removed from this.

The industrial robot cell 3 has a control device 7 and a control panel 14 on.

An operator 12 can the whole machining center 2 monitor or operate.

The machining center 2 is from the industrial robot cell 3 , from the pick-up tool magazine storage 18 and from the auxiliary tool magazine 4 automatically with workpieces 5 , Workpiece raw parts 9 , Workpiece pallets 6 and / or tools 10 provided.

2 shows one of the control device 1 created schedule 21 for one in the machining center 2 to be performed processing order 20 ,

The schedule 21 is in the form of a playlist 22 on the screen 11 shown. The playlist 22 lists the processing jobs 20 such that their displayed order corresponds to the execution order. In this case, for example, information 23 about the tool availability, the workpiece pallet number 24 , the start time of processing 25 , the number of the clamping 26 , the editing program name 27 etc. are displayed.

The computerized control device 1 controls a plurality of machine axes and at least one tool and / or Workpiece spindle based on machining programs and takes into account sensor data from peripherals, controls required actuators or ancillaries and communicates with other computerized control devices, if necessary 7 . 8th for the industrial robot cell 3 and the tool accessory magazine 4 , The computerized control device 1 In addition to the control tasks mentioned, it also takes on tasks for order organization by processing the pending processing jobs 20 on the basis of certain characteristics, such as machining priority, existing workpiece raw parts 9 , the number of pieces to be processed or the stock and condition of required tools 10 an optimized schedule 21 created (cf. 2 ) connected to the computerized control device 1 connected screen 11 is shown. At this screen 11 In addition, the required operator activities can be identified, which ensure that the schedule is processed without interruption 21 have to be prepared.

The computerized control device 1 fits the schedule 21 during the processing of the processing jobs 20 automatically to changed conditions, such as a deteriorated tool condition, on. In this case, the computer-aided control device 1 the schedule 21 in the event of an error occurring during the execution of a processing job 20 adjust automatically so that the next possible processing order 20 in the schedule 21 is selected.

The computer-aided control device 1 created schedule 21 but can also be done manually by the operator 12 be adjusted. This can be done by the operator 12 by a mark 28 (see. 2 ) define which processing jobs 20 of the schedule 21 are to be processed in a fixed sequence and which processing orders 20 on the basis of certain characteristics, such as machining priority, existing workpiece raw parts 9 , the number of pieces to be processed or the stock and condition of required tools 10 in order, dynamically by the computerized control device 1 can be adjusted.

The computerized control device 1 shows the schedule 21 as a playlist 22 on the screen 11 at. It lists this playlist 22 the processing orders 20 whose displayed order corresponds to the execution order. However, the order of editing jobs 20 also from the operator 12 via the input device 13 be changed manually.

Every processing order 20 in the playlist 22 also contains information about the tools needed 23 , about the workpiece pallet 24 or the workpiece 5 , about the expected start time 25 , via the number of workpiece clamping 26 and the editing program name 27 ,

The in the playlist 22 displayed information about the tool availability 23 also contain information about the completeness of the tools 10 and the expected service life of the tools 10 taking into account sister tools.

The schedule 21 can also be used on other control panels 14 . 15 , in particular in the field of industrial robotic cell 3 and / or the auxiliary tool magazine 4 are located, displayed and edited.

The schedule 21 can also be displayed, evaluated and edited with higher-level business planning systems (ERP) or production management systems (MES).

The processing orders to be processed 20 can be specified by a higher-level business planning system (ERP) or manufacturing management system (MES). The computerized control device 1 considered when creating the optimized schedule 21 besides the local features and resources 9 . 10 of the machining center 2 also the schedule specifications of this production-wide order control.

In addition, the computerized control device 1 the schedule 21 for the processing orders 20 of the machining center 2 with the schedule of other machining centers that use the same automation system, such as an industrial robotic cell 3 and / or an additional tool magazine 4 are concatenated, match.

Generally speaking, a method of computerized control for milling, boring and / or turning machining centers is described herein 2 , in particular for computer-aided control of a machining center 2 by at least one automation system 3 . 4 . 18 automatically with workpieces 5 . 9 , Workpiece pallets 6 and / or tools 10 is supplied, wherein the computerized control device 1 controls a plurality of machine axes and at least one tool and / or workpiece spindle on the basis of machining programs and thereby takes into account sensor data from peripheral devices, activates required actuators or ancillary units and optionally with further computer-aided control devices 7 . 8th of automation systems 3 . 4 communicates, being the computer-aided Control in addition to the control tasks mentioned also takes on tasks for order organization, by asking for the pending processing orders 20 based on certain characteristics, such as processing priority, existing blanks 9 , the number of pieces to be processed or the stock and condition of required tools 10 an optimized schedule 21 created at one with the computerized control device 1 connected screen 11 is displayed and on this screen 11 In addition, the required operator activities are shown, which are necessary for an uninterrupted execution of the schedule 21 have to be prepared.

The method further provides that the computerized controller schedules 21 during the processing of the processing jobs 20 automatically adapted to changing circumstances, such as a deteriorated tool condition.

The method further provides that the computerized controller schedules 21 in the event of an error occurring during the execution of a processing job 20 so automatically adjusts that the next possible processing order 20 in the schedule 21 is selected.

The method further provides that the flowchart created by the computerized control 21 manually by the operator 12 can be adjusted.

The method further provides that the operator by a license plate 28 can specify which editing jobs 20 of the schedule 21 are to be processed in a fixed sequence and which processing orders 20 based on certain characteristics, such as processing priority, existing blanks 9 , the number of pieces to be processed or the stock and condition of required tools 10 in order, dynamically by the computerized control device 1 can be adjusted.

The method further provides that the computerized controller schedules 21 in the presentation of a playlist 22 on a screen 11 indicating and this playlist 22 processing orders 20 whose order displayed corresponds to the execution order, and the order of the edit jobs 20 by the operator 12 via an input device 13 can be changed manually.

The procedure also provides that each processing order 20 in the playlist 22 Information about the tools needed 23 , about the workpiece pallet 24 or the workpiece, over the expected start time 25 , about the workpiece clamping 26 and about the editing program 27 contains.

The procedure also provides that in the playlist 22 displayed tool information 23 Information about the completeness of the tools 10 and the expected service life of the tools 10 including sister tools.

The procedure further provides that the schedule 21 in addition to other display and input devices 14 . 15 , in particular in the area of the respective automation system 3 . 4 . 18 can be located, displayed and edited.

The procedure further provides that the schedule 21 can be additionally displayed, evaluated and edited with higher-level business planning systems (ERP) or production management systems (MES).

The procedure further provides that the processing orders to be processed 20 be dictated by a parent enterprise planning system (ERP) or manufacturing management system (MES) and the computerized control device 1 when creating the optimized schedule 21 besides the local features and resources 9 . 10 of the machining center 2 also takes into account the schedule requirements of this production-wide order management.

The method further provides that the computerized controller schedules 21 for the processing orders 20 of the machining center 2 with the schedule of other machining centers using the same automation system 3 . 4 chained, matches.

LIST OF REFERENCE NUMBERS

1

Control device of the machining center

2

machining center

3

Industrial robot cell

4

Additional tool magazine

5

workpiece

6

Workpiece pallet

7

Control device of the industrial robot cell

8th

Control device of the additional tool magazine

9

Werkstückrohteil

10

Tool

11

screen

12

operator

13

Keyboard with touchpad

14

Control panel of the industrial robot cell

15

Control panel of additional tool magazine

16

industrial robots

17

Tool handling device

18

Pick-up tool magazine storage

19

working space

20

machiningCustom

21

schedule

22

playlist

23

Information about the tool availability

24

Workpiece pallet number

25

Start time of processing

26

Number of clamping

27

Editing program name

28

fixation Plate

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102004048039 A1 [0003]
• DE 102009007286 A1 [0003]
• EP 2088490 A2 [0004, 0004]

Claims (12)

Computerized control device ( 1 ) for milling, drilling and / or turning machining centers ( 2 ), in particular for computer-aided control of a machining center ( 2 ) by at least one automation system ( 3 . 4 . 18 ) automatically with workpieces ( 5 . 9 ), Workpiece pallets ( 6 ) and / or tools ( 10 ), the computerized control device ( 1 ) controls a multiplicity of machine axes and at least one tool and / or workpiece spindle on the basis of machining programs and thereby takes into account sensor data of peripheral devices, actuates required actuators or ancillary units and if necessary with further computer-aided control devices ( 7 . 8th ) of automation systems ( 3 . 4 ), characterized in that the computerized control device ( 1 ) in addition to the aforementioned control tasks also assumes tasks for order organization by 20 ) on the basis of certain characteristics, such as processing priority, of existing blanks ( 9 ), the number of pieces to be processed or the stock and condition of required tools ( 10 ) an optimized schedule ( 21 ), which is connected to a computer-aided control device ( 1 ) connected screen ( 11 ) and on this screen ( 11 ) are also shown the required operator activities necessary for the uninterrupted execution of the schedule ( 21 ) must be prepared. Computer-aided control device according to claim 1, characterized in that the computer-aided control device ( 1 ) the schedule ( 21 ) during the processing of the processing orders ( 20 ) automatically adapts to changed conditions, such as a deteriorated tool condition. Computer-aided control device according to claim 2, characterized in that the computer-aided control device ( 1 ) the schedule ( 21 ) in the event of an error occurring during the processing of a processing order ( 20 ) so automatically that the next possible processing order ( 20 ) in the schedule ( 21 ) is selected. Computer-aided control device according to at least one of the preceding claims, characterized in that that of the computer-aided control device ( 1 ) created schedule ( 21 ) manually by the operator ( 12 ) can be adjusted. Computer-aided control device according to claim 4, characterized in that the operator by a license plate ( 28 ) can specify which processing jobs ( 20 ) of the schedule ( 21 ) are processed in a fixed sequence and which processing orders ( 20 ) on the basis of certain characteristics, such as processing priority, of existing blanks ( 9 ), the number of pieces to be processed or the stock and condition of required tools ( 10 ) in their order dynamically by the computerized control device ( 1 ) can be adjusted. Computer-aided control device according to at least one of the preceding claims, characterized in that the computer-aided control device ( 1 ) the schedule ( 21 ) in the representation of a playlist ( 22 ) on a screen ( 11 ) and this playlist ( 22 ) Processing orders ( 20 ) whose displayed order corresponds to the execution order and that the order of the processing orders ( 20 ) by the operator ( 12 ) via an input device ( 13 ) can be changed manually. Computer-aided control device according to claim 6, characterized in that each processing order ( 20 ) in the playlist ( 22 ) Information about the required tools ( 23 ), about the workpiece pallet ( 24 ) or the workpiece, over the expected start time ( 25 ), about the workpiece clamping ( 26 ) and the machining program ( 27 ) contains. Computer-aided control device according to claim 7, characterized in that in the playlist ( 22 ) displayed tool information ( 23 ) Information about the completeness of the tools ( 10 ) and the expected service life of the tools ( 10 ) including sister tools. Computer-aided control device according to at least one of the preceding claims, characterized in that the flowchart ( 21 ) in addition to other display and input devices ( 14 . 15 ), which in particular in the area of the respective automation system ( 3 . 4 . 18 ), displayed and edited. Computer-aided control device according to at least one of the preceding claims, characterized in that the flowchart ( 21 ) can also be displayed, evaluated and edited with higher-level business planning systems (ERP) or production management systems (MES). Computer-aided control device according to at least one of the preceding claims, characterized in that the processing orders to be processed ( 20 ) of a higher-level business planning system (ERP) or manufacturing management system (MES) and the computer-aided control device ( 1 ) when creating the optimized schedule ( 21 ) in addition to the local characteristics and resources ( 9 . 10 ) of the machining center ( 2 ) also takes into account the schedule requirements of this production-wide order management. Computer-aided control device according to at least one of the preceding claims, characterized in that the computer-aided control device ( 1 ) the schedule ( 21 ) for the processing orders ( 20 ) of the machining center ( 2 ) with the flow chart of other processing centers operating with the same automation system ( 3 . 4 ) are concatenated, matches.

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