WO2019141855A1 - Method for grinding and/or polishing a defect and device for carrying out the method - Google Patents
Method for grinding and/or polishing a defect and device for carrying out the method Download PDFInfo
- Publication number
- WO2019141855A1 WO2019141855A1 PCT/EP2019/051417 EP2019051417W WO2019141855A1 WO 2019141855 A1 WO2019141855 A1 WO 2019141855A1 EP 2019051417 W EP2019051417 W EP 2019051417W WO 2019141855 A1 WO2019141855 A1 WO 2019141855A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- grinding
- polishing
- defect
- path
- along
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B51/00—Arrangements for automatic control of a series of individual steps in grinding a workpiece
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
- B24B1/04—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes subjecting the grinding or polishing tools, the abrading or polishing medium or work to vibration, e.g. grinding with ultrasonic frequency
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/26—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding workpieces with arcuate surfaces, e.g. parts of car bodies, bumpers or magnetic recording heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/0038—Other grinding machines or devices with the grinding tool mounted at the end of a set of bars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/033—Other grinding machines or devices for grinding a surface for cleaning purposes, e.g. for descaling or for grinding off flaws in the surface
Definitions
- the invention relates to a method for grinding and / or polishing a defect in the surface coating of a workpiece according to the preamble of claim 1 and a device for carrying out the proceedings procedural.
- the contact pressure and the grinding or polishing movement are decisive for the machining result.
- the contact pressure results in the processing of a horizontal surface of the mass of the grinding tool and the additional Lich manually applied force to the surface.
- the invention has for its object to further develop a method of the generic type so that the grinding or polishing result is optimized, with simultaneous reproducibility.
- the mass of the grinding tool is compensated insofar as it has no influence on the result.
- the grinding movement of the grinding tool and its movement type, i. the orbital, rotary and / or vibratory movements are coordinated and stored in a computer to be executed grinding and polishing track in a computer.
- the grinding or polishing disc is first performed along a con centric to the faulty inner slideway and then ent uninterrupted ent long led a spiral-shaped slideway in an outer concentric slideway.
- the grinding or polishing wheel is tilted during the circular grinding movement with respect to the perpendicular to the defect by a predetermined angle inwards and defines a cone angle.
- This Ke gelwinkel amplifies the grinding performance in the center of the circular path, so that the defect is targeted, easier and faster processed and creates a smooth transition to the edge of the grinding point.
- the radius of the outer concentric grinding path is not greater than half the diameter of the grinding plate or the grinding or polishing wheel.
- An apparatus of the method according to the invention is designed such that a grinding or polishing tool is formed as robot connected to a computer Ro, which has a fixed to an arm, orbital, rotating and / or vibrating movable support plate for holding a grinding or polishing pad, wherein the arm is computer-controlled movable.
- Fig. 3 to 5 the movement of the polishing according to the invention, also in a schematic view, respectively.
- the grinding movement and the movement type of a grinding tool are stored as an automatic grinding path in the computer as a work program.
- the center point of the grinding wheel or of the support plate is aligned with the defect 1 to be ground, with the grinding path starting in an inner circle 2.
- the center of the grinding wheel is tilted inwardly with respect to the perpendicular to the defect 1 by a predetermined angle, under at setting a cone angle.
- the grinding tool and the workpiece to be machined are usually oriented orthogonal to each other.
- the grinding wheel can be guided one or more times along the grinding path 2.
- the grinding wheel is guided in a concentric grinding track 4 and although without employment of the grinding wheel in a cone angle, whereby the grinding transitions smoothed and a flat Endresul is achieved.
- the sanding track 4 can also be sanded one or more times.
- the distance between the defect 1, the grinding path 2 and the grinding path 4 is dependent on the size of the defect 1 and its expression as well as the diameter D of the grinding wheel.
- the spiral track 3 can be different lengths depending on the extent of the defect.
- the radii of the grinding tracks 2 and 4 must always be smaller than half the diameter D of the grinding disc or grinding wheel, whereby in particular special by the inner circular path 2, the faulty point of the workpiece to be machined undergoes a more intensive continuous processing and thereby the in Figure 2 represented so-called effective grinding surface F1 is ent.
- the distance between the radii R1, R2 of the sliding tracks 2 and 4 can be adjusted accordingly depending on the defect to be processed.
- the distance between the inner grinding path 2 and the outer grinding path 4 is chosen to be as small as possible to effectively handle defects in areas such as along edges of a body of a motor vehicle ent long the fat edges of the body modules and in tight radii of the body ,
- the sliding tracks 2 and 4 are assigned grinding times, as well as to pressure forces of the grinding tool and speeds or stroke rates. In doing so, they always have the same shape and form in a shorter time than previously produced grinding points, so they are reproducible.
- the cone angle is continuously reduced to 0 to start the grinding path 3 in a previously defined route.
- Another advantage of the method according to the invention is that the shape of the abrasive can be made smaller on a support, whereby the abrasive requirement is significantly reduced, as well as the not agile energy needs.
- a computer-aided statistical evaluation between a number of errors and the consumption of abrasives serves as the basis for a continuous improvement process.
- FIGs 3-5 the sequence of movement of a Polierwerkzeu ges is shown schematically in an automated polishing.
- the polishing movement and the movement of the polishing tool are also computer controlled, the corresponding parameters are stored in a computer.
- the center of the polishing head is exactly aligned with the defect 1.
- polishing contours for example, the surface of affyka rosette, the polishing tool and the surface are orthogonal to each other out.
- a first polishing sheet 5 is shown, which starts at the defect 1 be and extends spirally outward.
- the contact pressure is regulated in stages, where the adjustment takes place as a function of the track length.
- the control of the contact pressure for example, is supported by corresponding pressure sensors in the robot.
- the movement commences according to the Po lierbahn 5 with a contact pressure P1, which is reduced along the polishing path 5 to the outside Shen.
- the contact pressure is reduced wei ter to smooth the polishing transition.
- the contact pressure is reduced in order to prevent heating of the usually formed as a polishing sponge polishing pad.
- the polishing times along the polishing tracks 5, 6 as well as the pressing pressures and the respective rotational or stroke numbers of the polishing tool are stored in a corresponding program of the computer.
- the Po lierzeit is adapted to the size of the grinding point.
- the polishing points are to produce by the inventive method in a much shorter rer time and, moreover, always the same expression and Shape, so are reproducible. As a result, the polish can be noticeably reduced, as well as the energy requirements.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
Description
Claims
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA3084115A CA3084115A1 (en) | 2018-01-22 | 2019-01-22 | Method for grinding and/or polishing a defect and device for carrying out the method |
KR1020207018776A KR20200107947A (en) | 2018-01-22 | 2019-01-22 | Method for grinding and/or polishing defects and apparatus for performing the method |
US16/963,565 US20210053185A1 (en) | 2018-01-22 | 2019-01-22 | Method for grinding and/or polishing a defect and device for carrying out the method |
RU2020116724A RU2781551C2 (en) | 2018-01-22 | 2019-01-22 | Method for grinding and/or polishing of defect and device for implementation of such a method |
EP19701341.0A EP3703905B1 (en) | 2018-01-22 | 2019-01-22 | Method for grinding and/or polishing a defect and device for carrying out the method |
CN201980007038.2A CN111601680B (en) | 2018-01-22 | 2019-01-22 | Method for grinding and/or polishing defects and device for carrying out said method |
MX2020007387A MX2020007387A (en) | 2018-01-22 | 2019-01-22 | Method for grinding and/or polishing a defect and device for carrying out the method. |
BR112020010657-7A BR112020010657A2 (en) | 2018-01-22 | 2019-01-22 | method for grinding and / or polishing a defect and device for carrying out the method |
JP2020540402A JP2021510639A (en) | 2018-01-22 | 2019-01-22 | A method for grinding and / or polishing a defective part and a device for carrying out this method. |
ZA2020/02988A ZA202002988B (en) | 2018-01-22 | 2020-05-21 | Method for grinding and/or polishing a defect and device for carrying out the method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018101293.4A DE102018101293A1 (en) | 2018-01-22 | 2018-01-22 | Method for grinding and / or polishing a defect and device for carrying out the method |
DE102018101293.4 | 2018-01-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2019141855A1 true WO2019141855A1 (en) | 2019-07-25 |
Family
ID=65199424
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2019/051417 WO2019141855A1 (en) | 2018-01-22 | 2019-01-22 | Method for grinding and/or polishing a defect and device for carrying out the method |
Country Status (11)
Country | Link |
---|---|
US (1) | US20210053185A1 (en) |
EP (1) | EP3703905B1 (en) |
JP (1) | JP2021510639A (en) |
KR (1) | KR20200107947A (en) |
CN (1) | CN111601680B (en) |
BR (1) | BR112020010657A2 (en) |
CA (1) | CA3084115A1 (en) |
DE (1) | DE102018101293A1 (en) |
MX (1) | MX2020007387A (en) |
WO (1) | WO2019141855A1 (en) |
ZA (1) | ZA202002988B (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3014997A1 (en) * | 1979-04-27 | 1980-11-06 | Diesel Kiki Co | Workpiece end face grinding machine - has drive units rotating workpiece and grinding wheels at different speeds |
CN101898325B (en) * | 2010-07-28 | 2012-05-30 | 中国人民解放军国防科学技术大学 | Modification processing method of optical element surface and numerical control machine used thereby |
US20120220194A1 (en) * | 2011-02-24 | 2012-08-30 | Apple Inc. | Smart automation of robotic surface finishing |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4128968A (en) * | 1976-09-22 | 1978-12-12 | The Perkin-Elmer Corporation | Optical surface polisher |
DE19532424C2 (en) * | 1995-09-01 | 1998-01-29 | Jenoptik Jena Gmbh | Device for local grinding or polishing of surfaces |
SE510932C2 (en) * | 1997-02-17 | 1999-07-12 | Volvo Ab | Use of a device for reproducible surface finishing of a test surface in connection with the development of varnishes, varnished parts or polishing equipment for the automotive industry |
DE102009039093A1 (en) * | 2009-08-27 | 2011-03-03 | Bayerische Motoren Werke Aktiengesellschaft | Painted part or component grinding and polishing method for use in motor vehicle, involves automatically grinding and polishing manually detected defect of painted part in testing position based on estimated defect-detecting position data |
US9063534B2 (en) * | 2010-10-13 | 2015-06-23 | Mbda Uk Limited | Workpiece positioning method and apparatus |
TWI532565B (en) * | 2011-03-21 | 2016-05-11 | 智勝科技股份有限公司 | Polishing method and polishing system |
CN102873628B (en) * | 2012-09-26 | 2015-02-18 | 清华大学 | Method for generating helix machining path for numerical-control small tool polishing |
US9056383B2 (en) * | 2013-02-26 | 2015-06-16 | Applied Materials, Inc. | Path for probe of spectrographic metrology system |
DE102015115313B4 (en) * | 2015-09-10 | 2017-08-10 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Grinding tool and its use for computer-controlled reworking of milled freeform surfaces |
-
2018
- 2018-01-22 DE DE102018101293.4A patent/DE102018101293A1/en active Pending
-
2019
- 2019-01-22 US US16/963,565 patent/US20210053185A1/en active Pending
- 2019-01-22 KR KR1020207018776A patent/KR20200107947A/en not_active Application Discontinuation
- 2019-01-22 JP JP2020540402A patent/JP2021510639A/en active Pending
- 2019-01-22 MX MX2020007387A patent/MX2020007387A/en unknown
- 2019-01-22 CN CN201980007038.2A patent/CN111601680B/en active Active
- 2019-01-22 WO PCT/EP2019/051417 patent/WO2019141855A1/en unknown
- 2019-01-22 BR BR112020010657-7A patent/BR112020010657A2/en unknown
- 2019-01-22 EP EP19701341.0A patent/EP3703905B1/en active Active
- 2019-01-22 CA CA3084115A patent/CA3084115A1/en not_active Abandoned
-
2020
- 2020-05-21 ZA ZA2020/02988A patent/ZA202002988B/en unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3014997A1 (en) * | 1979-04-27 | 1980-11-06 | Diesel Kiki Co | Workpiece end face grinding machine - has drive units rotating workpiece and grinding wheels at different speeds |
CN101898325B (en) * | 2010-07-28 | 2012-05-30 | 中国人民解放军国防科学技术大学 | Modification processing method of optical element surface and numerical control machine used thereby |
US20120220194A1 (en) * | 2011-02-24 | 2012-08-30 | Apple Inc. | Smart automation of robotic surface finishing |
Also Published As
Publication number | Publication date |
---|---|
KR20200107947A (en) | 2020-09-16 |
CA3084115A1 (en) | 2019-07-25 |
MX2020007387A (en) | 2020-09-03 |
RU2020116724A (en) | 2022-02-24 |
ZA202002988B (en) | 2021-09-29 |
DE102018101293A1 (en) | 2019-07-25 |
EP3703905A1 (en) | 2020-09-09 |
CN111601680B (en) | 2022-07-08 |
US20210053185A1 (en) | 2021-02-25 |
BR112020010657A2 (en) | 2020-11-10 |
EP3703905B1 (en) | 2024-03-20 |
JP2021510639A (en) | 2021-04-30 |
CN111601680A (en) | 2020-08-28 |
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