EP2732915A3 - Spring end grinding machine with protection device - Google Patents
Spring end grinding machine with protection device Download PDFInfo
- Publication number
- EP2732915A3 EP2732915A3 EP13192737.8A EP13192737A EP2732915A3 EP 2732915 A3 EP2732915 A3 EP 2732915A3 EP 13192737 A EP13192737 A EP 13192737A EP 2732915 A3 EP2732915 A3 EP 2732915A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- grinding
- spring
- helical compression
- unit
- compression springs
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000006835 compression Effects 0.000 abstract 4
- 238000007906 compression Methods 0.000 abstract 4
- 239000002245 particle Substances 0.000 abstract 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 230000001681 protective effect Effects 0.000 abstract 2
- 229910001369 Brass Inorganic materials 0.000 abstract 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000010951 brass Substances 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
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
- B24B27/00—Other grinding machines or devices
- B24B27/0069—Other grinding machines or devices with means for feeding the work-pieces to the grinding tool, e.g. turntables, transfer means
-
- 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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/005—Feeding or manipulating devices specially adapted to grinding machines
-
- 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
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/04—Protective covers for the grinding wheel
-
- 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
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/06—Dust extraction equipment on grinding or polishing machines
-
- 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
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/10—Single-purpose machines or devices
- B24B7/16—Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings
- B24B7/167—Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings end faces coil springs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
Eine Federendenschleifmaschine (100) zum Schleifen von Federenden von Schraubendruckfedern hat eine Schleifeinheit (120), die ein Schleifscheibenpaar mit zwei drehbaren Schleifscheiben (130, 140) aufweist, zwischen denen ein Schleifraum (135) gebildet ist, eine Ladeeinheit (150), die mindestens einen im Wesentlichen achsparallel mit den Schleifscheiben drehbaren Ladeteller (160, 170) aufweist, der eine Vielzahl von außeraxialen Federaufnahmen (166) zur Aufnahme jeweils einer Schraubendruckfeder (F) hat, und eine Steuereinheit (102) zur Steuerung der Ladeeinheit und der Schleifeinheit. In Federaufnahmen aufgenommene Schraubendruckfedern (F) sind durch Drehung eines in einer Arbeitsposition angeordneten Ladetellers sukzessive ertlang einer Schleifbahn durch den Schleifraum transportierbar. Während einer Bearbeitungsphase stehen jeweils beide Federenden der im Schleifraum befindlichen Schraubendruckfedern gleichzeitig in einem Kontaktbereich derart in spanabtragendem Eingriff mit einer zugeordneten Schleifscheibe, dass von dem Kontaktbereich ein Partikelstrom mit abgetragenen Partikeln des Werkstoffs der Schraubenfedern ausgeht. An mindestens einer durch den Partikelstrom erreichbaren Position der Federendenschleifmaschine ist eine Schutzeinrichtung (221, 222, 223, 224, 225, 226, 227) angebracht. Zumindest eine dem Partikelstrom ausgesetzte Oberfläche der Schutzeinrichtung besteht aus einem anorganischen Nicht-Eisen-Material, z.B. aus Messing. Dadurch kann die Entstehung von störenden eisenhaltigen Ablagerungen an den geschützten Stellen weitgehend unterdrückt werden. A spring end grinding machine (100) for grinding spring ends of helical compression springs has a grinding unit (120) having a grinding wheel pair with two rotatable grinding wheels (130, 140) between which a grinding space (135) is formed, a loading unit (150) at least a loading plate (160, 170) rotatable substantially axially parallel with the grinding wheels, having a plurality of off-axis spring retainers (166) for receiving a respective helical compression spring (F), and a control unit (102) for controlling the loading unit and the grinding unit. Helical compression springs (F) accommodated in spring receptacles can be transported successively along a grinding path through the grinding space by rotation of a loading plate arranged in a working position. During a processing phase, both spring ends of the helical compression springs located in the grinding space are simultaneously in a contact region in chip-removing engagement with an associated grinding wheel that emanates a particle stream of abraded particles of the material of the helical springs from the contact region. A protective device (221, 222, 223, 224, 225, 226, 227) is attached to at least one position of the spring-end grinding machine that can be reached by the particle flow. At least one of the particle flow exposed surface of the protective device consists of an inorganic non-ferrous material, such as brass. As a result, the formation of disturbing iron-containing deposits at the protected sites can be largely suppressed.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201210221221 DE102012221221A1 (en) | 2012-11-20 | 2012-11-20 | Spring sander with protection device |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2732915A2 EP2732915A2 (en) | 2014-05-21 |
EP2732915A3 true EP2732915A3 (en) | 2015-05-27 |
EP2732915B1 EP2732915B1 (en) | 2019-08-21 |
Family
ID=49578179
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13192737.8A Active EP2732915B1 (en) | 2012-11-20 | 2013-11-13 | Spring end grinding machine with protection device |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2732915B1 (en) |
CN (1) | CN103831708A (en) |
DE (1) | DE102012221221A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103786081B (en) * | 2013-12-31 | 2016-04-20 | 绍兴市家度弹簧机械有限公司 | A kind of spring grinding mechanism |
US20180136094A1 (en) * | 2014-11-12 | 2018-05-17 | Illinois Tool Works Inc. | Planar grinder |
CN105598763A (en) * | 2016-01-22 | 2016-05-25 | 重庆市安太弹簧有限责任公司 | Abrasive disk used for grinding double end faces of spring |
CN105773347A (en) * | 2016-04-29 | 2016-07-20 | 新昌县盛金祺机械有限公司 | Efficient bearing polishing equipment |
CN109176195B (en) * | 2018-09-25 | 2023-12-15 | 杭州恒立弹簧制造有限公司 | Efficient spring grinding machine |
CN112296830A (en) * | 2019-07-30 | 2021-02-02 | 均豪精密工业股份有限公司 | Grinding device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB615492A (en) * | 1946-07-03 | 1949-01-06 | Heath Spring & Notion Company | Improvements in or relating to machines for grinding the ends of coiled springs |
DE8114600U1 (en) * | 1981-05-16 | 1981-10-22 | Ernst Witzmann, Metallverarbeitung, Vorrichtungsbau, 5620 Velbert | PROTECTIVE DEVICE FOR THE SHAFT OF BAND GRINDING MACHINES |
JPH08276364A (en) * | 1995-04-06 | 1996-10-22 | Mitsubishi Materials Corp | Polishing and grinding having damping properties and device for cutting work |
JP2010089208A (en) * | 2008-10-08 | 2010-04-22 | Sanyo Special Steel Co Ltd | Method of preventing deposition of abrasive particle in spinning type cutting machine cover container and cutting machine cover container |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1020255B (en) * | 1954-08-07 | 1957-11-28 | Karl Hack | Spring end grinding machine with vertical grinding spindle and grinding wheel spacing adjustable by means of a fine measuring thread |
DE1020892B (en) * | 1954-08-07 | 1957-12-12 | Karl Hack | Spring end grinding machine with removable protective cover for the grinding wheels |
CN2212479Y (en) * | 1994-11-28 | 1995-11-15 | 阳旻企业股份有限公司 | Lapping machine for end surface of spring conveyed continuously |
-
2012
- 2012-11-20 DE DE201210221221 patent/DE102012221221A1/en not_active Withdrawn
-
2013
- 2013-11-13 EP EP13192737.8A patent/EP2732915B1/en active Active
- 2013-11-20 CN CN201310583210.3A patent/CN103831708A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB615492A (en) * | 1946-07-03 | 1949-01-06 | Heath Spring & Notion Company | Improvements in or relating to machines for grinding the ends of coiled springs |
DE8114600U1 (en) * | 1981-05-16 | 1981-10-22 | Ernst Witzmann, Metallverarbeitung, Vorrichtungsbau, 5620 Velbert | PROTECTIVE DEVICE FOR THE SHAFT OF BAND GRINDING MACHINES |
JPH08276364A (en) * | 1995-04-06 | 1996-10-22 | Mitsubishi Materials Corp | Polishing and grinding having damping properties and device for cutting work |
JP2010089208A (en) * | 2008-10-08 | 2010-04-22 | Sanyo Special Steel Co Ltd | Method of preventing deposition of abrasive particle in spinning type cutting machine cover container and cutting machine cover container |
Also Published As
Publication number | Publication date |
---|---|
EP2732915A2 (en) | 2014-05-21 |
CN103831708A (en) | 2014-06-04 |
DE102012221221A1 (en) | 2014-05-22 |
EP2732915B1 (en) | 2019-08-21 |
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