KR101668765B1 - Method for detecting standard point of worksheet - Google Patents
Method for detecting standard point of worksheet Download PDFInfo
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- KR101668765B1 KR101668765B1 KR1020150079249A KR20150079249A KR101668765B1 KR 101668765 B1 KR101668765 B1 KR 101668765B1 KR 1020150079249 A KR1020150079249 A KR 1020150079249A KR 20150079249 A KR20150079249 A KR 20150079249A KR 101668765 B1 KR101668765 B1 KR 101668765B1
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- machining
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/22—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
- B23Q15/20—Automatic control or regulation of feed movement, cutting velocity or position of tool or work before or after the tool acts upon the workpiece
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/22—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work
- B23Q17/2233—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work for adjusting the tool relative to the workpiece
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/401—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for measuring, e.g. calibration and initialisation, measuring workpiece for machining purposes
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/4097—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by using design data to control NC machines, e.g. CAD/CAM
Abstract
Description
The present invention relates to a method of detecting a machining reference point of a workpiece, and more particularly, to a method of detecting a machining reference point of a free-form surface workpiece.
It is necessary to generate a machining reference point of the object to be machined when a machining process is performed on the object to be machined by using a CNC machine tool such as a milling machine, a discharge machining machine, a machining center or the like.
For this purpose, it is common to position a workpiece on a flexible paper sheet, place a probe, which is a probe element, on the workpiece, and set the processing origin of the workpiece.
For example, when a simple CNC machine tool, a rectangular coordinate robot, or a computer-controlled machine tool is equipped with a numerically controlled Z-axis and the power is turned on for a new tool or a work, Y, Z Zero for each axis should be set. That is, the position of the mechanical origin is matched with the coordinate calculation reference point in the controller (controller).
At this time, a limit switch is provided at one end of the X and Y axes, and a contact or non-contact type sensor or switch is provided at the other end of the shaft. A zero point is set as a reference point. It is common and common that the execution process of the program is automatically performed. On the other hand, since a tool having a constant length is attached to the Z axis, the total length of the Z axis is not constant depending on the tool.
Therefore, in order to set the zero point of the Z axis, it is set by setting the zero point of the Z axis at the time when the end of the tool is lowered by the manual operation while touching the tip of the tool, The origin of machining of the shaft is generally set by manually inputting the height of the workpiece into the controller or visually confirming the descent of the tool and approaching the workpiece.
However, such a method has the following problems.
First, the manual operation by the confirmation of the naked eye and the contact type require the operation to be stopped by capturing the moment when the tip of the tool comes into contact with the upper surface of the machining table while performing the descending operation of the Z axis, and the zero point must be set at that point. Productivity drops.
Second, the above method is less accurate due to errors in the acquisition of the contact point.
Third, since the object to be processed is fixed to the flexible paper, the Z axis must be lowered while looking at the Z axis until the tip of the tool comes into contact with the upper surface of the work, and the contact must be visually discriminated.
Fourth, when the height of the workpiece is input to the controller for setting the processing origin of the workpiece, there is a need to input the height of the workpiece to the controller every time after completion of the fixing work of the workpiece. If attachment for fixation is inserted, additional work is required to measure the height of the workpiece again.
In addition, in the case of a workpiece having a plane, cylindrical or symmetrical shape, it is easy to grasp the origin but a workpiece having a large area curved shape has a problem that it is difficult to grasp the origin or the reference point.
A related art is Korean Patent Laid-Open No. 10-2009-0025525.
In order to solve the above problems, a technical object of the present invention is to provide a method of detecting a machining reference point of an object to be machined, which can quickly and easily detect a reference point necessary for setting a position of an object on a flexible paper, .
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not intended to limit the invention to the precise form disclosed. There will be.
An embodiment of the present invention includes: inputting data of an object to be processed; Controlling a position of the plurality of soft tissues; Inputting position information of an object to be processed which is in contact with each soft tissue when the object to be processed is seated on the plurality of soft tissues; And generating a machining reference point of the object to be machined by comparing the position of the input soft tissue with the position and data of the object to be machined.
In the embodiment of the present invention, in the step of inputting the data of the object, the data of the object may be designed by a CAD program.
In the embodiment of the present invention, in the step of inputting the data of the object to be processed, the data of the object to be processed may include the shape and dimensions of the object to be processed.
In the embodiment of the present invention, the step of controlling the positions of the plurality of soft tissues may include the steps of: coordinate the positions of the X, Y, and Z axes of the respective soft tissues in a state in which the object is placed on the plurality of soft tissues, Lt; / RTI >
In the embodiment of the present invention, the step of generating the processing reference point of the object to be processed may include the step of detecting an error of the forming process by comparing the data of the object to be processed on the coordinate in contact with the object, have.
In the embodiment of the present invention, the step of generating the machining reference point of the object to be processed may include a step of correcting the deformation amount of the object to be machined during the process.
In the embodiment of the present invention, the step of correcting the deformation amount of the object to be processed may measure the processing load and vibration using the soft tissue paper, and correct deformation of the object.
In an embodiment of the present invention, the object to be processed may include at least one of carbon fiber reinforced plastic (CFRP), metal, and synthetic resin having a free curved surface shape.
In an embodiment of the present invention, the processing step may include at least one of milling, drilling, and trimming.
According to another embodiment of the present invention, there is provided a method of processing a workpiece, comprising the steps of: setting a machining path that matches the machining characteristic of the workpiece in accordance with the machining reference point detection method of the present invention; And setting a machining condition suitable for the machining path, wherein the machining object is machined on the basis of the set stepwise information.
In an embodiment of the present invention, the processing step may include at least one of milling, drilling, welding, and waterjet trimming.
According to the embodiment of the present invention, it is possible to quickly and easily detect a reference point necessary for setting the position of the object on the flexible paper of the processing apparatus, thereby saving time required for the processing.
Further, according to the embodiment of the present invention, it is possible to generate the machining reference point of the object to be machined without separately measuring the origin.
It should be understood that the effects of the present invention are not limited to the above effects and include all effects that can be deduced from the detailed description of the present invention or the configuration of the invention described in the claims.
1 is a flowchart showing a method of detecting a machining reference point of an object to be machined according to an embodiment of the present invention.
2 is a flowchart showing a processing method of an object to be processed according to an embodiment of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.
Throughout the specification, when a part is referred to as being "connected" to another part, it includes not only "directly connected" but also "indirectly connected" . Also, when an element is referred to as "comprising ", it means that it can include other elements, not excluding other elements unless specifically stated otherwise.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
1 is a flowchart showing a method of detecting a machining reference point of an object to be machined according to an embodiment of the present invention.
Referring to FIG. 1, a method of detecting a machining reference point according to an embodiment includes inputting shape information of a workpiece 10 (S110), controlling and inputting positions of a plurality of soft tissue sheets 20 (S120) (S130) of inputting positional information of the object to be processed, and detecting a processing reference point of the object (S140).
The data input step (S110) of the object to be processed may be a step of inputting information such as shape, dimensions and the like to the object to be processed to the control unit.
The object to be processed according to one embodiment may include carbon fiber reinforced plastic (CFRP) having a free-form surface shape, metal, synthetic resin, or the like. At this time, since the object to be processed has a free-form surface shape, the data of the object to be processed may be data designed by 3D programs such as CAD and SolidWorks.
The CFRPs of the present invention can be applied to various types of substrates such as glass fiber reinforced plastic (GFRP), Dyneema fiber reinforced plastics (DFRP), zylon fiber reinforced plastics (ZFRP), boron fiber reinforced plastics (BFRP), Kevlar fiber reinforced plastics (KFRP) Metal) GFRP, DFRP, ZFRP, BFRP, and CFRM.
The position input step (S120) of the soft tissue may be a step of coordinateing the positions of the X, Y and Z axes of the soft tissues in a state where the object to be processed is placed on the plurality of soft tissues, and inputting them to the control unit.
An object to be processed for a predetermined processing step is seated on a plurality of flexible papers and the flexible papermill can stably support the object to be processed. For example, the flexible sheet can be moved along the guide rails provided on the lower side thereof along the X axis and the Y axis, and can be raised or lowered in the Z axis. The soft tissue paper has a substantially cylindrical shape, but the material and the shape of the soft tissue paper are not limited as long as they have sufficient strength to support the object to be processed.
The position information input step (S130) of the object to be processed may be a step of inputting position information of the object to be contacted with each soft tissue when the object is placed on the plurality of soft tissues.
A part of the flexible paper, for example, the upper end, may be equipped with a sensor for sensing the state of contact with the object to be processed. The sensor can be applied to both the contact type in which the object is in direct contact with the object to be processed and the non-contact type in which the object is in contact with the object in a non-contact manner. You will have a variety of measurement methods.
The step of detecting the machining reference point of the object to be machined (S140) may be a step of detecting a machining reference point of the object to be machined to perform a predetermined machining process by comparing the position of the input soft cloth with the position and shape of the object. Thereafter, the machining process that has already been set can be performed based on the machining reference point.
At this time, the shape and size of the object to be processed on the coordinates in contact with the soft tissue can be compared with the designed data to detect errors in the molding process.
Further, the object to be processed may be deformed by an external force such as air pressure, vibration or the like during the process, and may further include a step of correcting the deformation amount of the object to be processed. The step of correcting the deformation amount of the object to be processed can measure the deformation amount of the object to be processed by measuring the processing load and vibration using the soft tissue paper.
That is, according to the embodiment of the present invention, even if a separate probe is not used, the coordinates of the soft tissue and the coordinates of the object to be contacted with the soft tissue at that point are used to detect the reference point for machining the object do. At this time, since the initial origin of the machining process need not be detected, the process can be simplified.
2 is a flowchart showing a processing method of an object to be processed performed on the basis of a processing reference point of an object to be processed according to an embodiment of the present invention.
2, a method of machining an object according to an embodiment includes a step S210 of setting a machining path that matches the machining characteristic of an object to be machined in accordance with a machining reference point detection method of the object, (S220), and processing the object to be processed based on the set stepwise information (S230).
Step S210 of setting a machining path that matches the machining characteristics of the object to be machined may be a step of forming a machining path based on the input machining reference point in consideration of the shape, material, and the like of the object to be machined. Since the method of detecting the machining reference point of the object to be machined is the same as described above, a detailed description thereof will be omitted.
The above-described machining process may include at least one of drilling, milling, and trimming processes according to the machining path.
The drilling process can be a machining process in which a drilling tool such as a drill is installed on a rotating main shaft and the drill is rotated in the up and down direction to make a hole in the object. When a drilling process is performed, a relatively narrow machining hole may be formed.
The milling process may be a cutting process for cutting an object to be processed by using a processing tool such as a milling machine. When the milling process is performed, a pocket-shaped machining groove can be formed. Therefore, the machining process can be changed according to the desired machining shape.
The trimming process may be a process of cutting or drawing unnecessary edges or fins of a product produced by pressing or casting to cleanly shape the product. When the object to be processed is carbon fiber-reinforced plastic, waterjet trimming can proceed for more precise processing.
The step of setting the processing conditions (S220) may be a condition reflecting characteristics of the material to be processed classified, for example, carbon fiber-reinforced plastic, metal, or synthetic resin according to the object to be processed. Further, when the object to be processed has a free-form surface shape, it may be a condition reflecting the shape thereof.
The step of machining the object to be processed (S230) may be a step of performing a machining process such as drilling, milling, and trimming based on the information set through the steps as described above.
In order to perform such a machining process, a control unit (not shown) for outputting a control signal to the machining apparatus may be included. According to an instruction from the control unit, the processing apparatus for the object to be processed can perform a predetermined processing step.
It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.
The scope of the present invention is defined by the appended claims, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present invention.
10; Object to be processed
20; Soft paper
Claims (11)
Inputting data of an object to be processed;
Controlling a position of the plurality of soft tissues;
Inputting position information of an object to be processed which is in contact with each soft tissue when the object to be processed is seated on the plurality of soft tissues;
Generating a machining reference point of the object to be machined by comparing the position of the input soft tissue with the position and data of the object to be machined;
Lt; / RTI >
Wherein the step of controlling the position of the plurality of soft tissues comprises the step of inputting coordinates of the positions of the X, Y, Z axes of the respective soft tissues to the control unit in a state where the object to be processed is placed on the plurality of soft tissues, A method of detecting a cutting reference point.
Wherein the data of the object to be processed is designed by a CAD program in the step of inputting data of the object to be processed.
Wherein the data of the object to be processed includes the shape and dimensions of the object to be processed in the step of inputting data of the object to be processed.
Wherein the step of generating the processing reference point of the object to be processed includes a step of detecting an error of the forming process by comparing the data of the object to be processed with the designed data on the coordinate in contact with the flexible object, Detection method.
Wherein the step of generating the machining reference point of the object to be processed includes a step of correcting the deformation amount of the object to be machined during the process.
Wherein the step of correcting the amount of deformation of the object to be processed comprises measuring a processing load and vibration using the soft tissue paper and correcting the deformation of the object due to the processing load and vibration.
Wherein the object to be processed includes at least one of carbon fiber reinforced plastic (CFRP), metal, and synthetic resin having a free-form surface shape.
Wherein the machining includes at least one of milling, drilling, trimming, water jet, and routing.
Setting a machining path that matches the machining characteristic of the object in accordance with the machining reference point detection method of the object of claim 1;
Setting a machining condition corresponding to the machining path; And
Processing the object to be processed based on the set stepwise information;
And processing the object.
Wherein the machining includes at least one of milling, drilling, and trimming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| KR1020150079249A KR101668765B1 (en) | 2015-06-04 | 2015-06-04 | Method for detecting standard point of worksheet |
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020150079249A KR101668765B1 (en) | 2015-06-04 | 2015-06-04 | Method for detecting standard point of worksheet |
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| KR101668765B1 true KR101668765B1 (en) | 2016-10-25 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20190048695A (en) * | 2017-10-31 | 2019-05-09 | 한국생산기술연구원 | System for robot calibration and method for calibration using the same |
| WO2019088649A1 (en) * | 2017-10-30 | 2019-05-09 | 한국생산기술연구원 | Robot system for adjusting processing load according to wear of tool and method for adjusting processing load by using same |
| WO2020105984A1 (en) * | 2018-11-20 | 2020-05-28 | 한국생산기술연구원 | Device for performing processing while varying tool position in view of tool wear and method for controlling tool position by using same |
| WO2020105985A1 (en) * | 2018-11-19 | 2020-05-28 | 한국생산기술연구원 | Method for processing cfrp by using processing path and processing order in view of jig arrangement and processing equipment having flexible jig deformation preventing structure applied thereto |
| KR20200059359A (en) * | 2018-11-20 | 2020-05-29 | 한국생산기술연구원 | Cfrp machining method and device using machining path and machining sequence considering jig arrangement |
| KR20200073007A (en) | 2018-12-13 | 2020-06-23 | 주식회사 강한이노시스 | The Diagnostic and Position Control System for Industrial Machine Equipment |
| KR20200099285A (en) * | 2019-02-14 | 2020-08-24 | 두산공작기계 주식회사 | Method of position setting for the tool holder in the matrix type tool magazine |
| KR102331731B1 (en) * | 2020-11-11 | 2021-12-02 | 한국생산기술연구원 | A Method for generating the lamination path of carbon fiber reinforced plastics considering the machining angle and machining direction of the tool |
| KR20220012526A (en) * | 2020-07-23 | 2022-02-04 | 한국항공우주산업 주식회사 | Control system and method of complex processing equipment including multi positioner capable of working with various types of workpieces |
| US20230012519A1 (en) * | 2014-05-20 | 2023-01-19 | Par Systems, Llc | Adaptive Manufacturing System |
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| KR102144909B1 (en) | 2018-11-20 | 2020-08-18 | 한국생산기술연구원 | Cfrp machining method and device using machining path and machining sequence considering jig arrangement |
| KR102201173B1 (en) * | 2018-11-20 | 2021-01-13 | 한국생산기술연구원 | Machining device for controlling tool position considering tool wear and method for controlling tool position using the same |
| KR20200059358A (en) * | 2018-11-20 | 2020-05-29 | 한국생산기술연구원 | Machining device for controlling tool position considering tool wear and method for controlling tool position using the same |
| KR20200059359A (en) * | 2018-11-20 | 2020-05-29 | 한국생산기술연구원 | Cfrp machining method and device using machining path and machining sequence considering jig arrangement |
| WO2020105984A1 (en) * | 2018-11-20 | 2020-05-28 | 한국생산기술연구원 | Device for performing processing while varying tool position in view of tool wear and method for controlling tool position by using same |
| KR20200073007A (en) | 2018-12-13 | 2020-06-23 | 주식회사 강한이노시스 | The Diagnostic and Position Control System for Industrial Machine Equipment |
| KR20200099285A (en) * | 2019-02-14 | 2020-08-24 | 두산공작기계 주식회사 | Method of position setting for the tool holder in the matrix type tool magazine |
| KR102511204B1 (en) | 2019-02-14 | 2023-03-17 | 주식회사 디엔솔루션즈 | Method of position setting for the tool holder in the matrix type tool magazine |
| KR20220012526A (en) * | 2020-07-23 | 2022-02-04 | 한국항공우주산업 주식회사 | Control system and method of complex processing equipment including multi positioner capable of working with various types of workpieces |
| KR102368992B1 (en) * | 2020-07-23 | 2022-03-03 | 한국항공우주산업 주식회사 | Control system and method of complex processing equipment including multi positioner capable of working with various types of workpieces |
| KR102331731B1 (en) * | 2020-11-11 | 2021-12-02 | 한국생산기술연구원 | A Method for generating the lamination path of carbon fiber reinforced plastics considering the machining angle and machining direction of the tool |
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