• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A hollow cylinder having a bore therethrough which is of a larger diameter at one end than at the other end. A longitudinal slot through the cylinder intersecting the smaller diameter bore. A stud in threaded connection with the larger diameter bore and carrying a relatively thin blade-like, clamping mandrel pin with serrated edges that extends into the smaller diameter bore and extends between adjacent folded ends of a polishing cloth disposed around the cylinder with the ends extending through the slot and across the smaller bore, and which functions to rigidly clamp the ends between the serrated edges and the wall of the smaller diameter bore when the stud and clamping mandrel pin are rotated by 90 DEG . A block with a bore for receiving the cylinder with polishing cloth thereon holding the members together during the clamping process and the block includes an angled slot for back-folding the ends of the polishing cloth.
    公开号:SU928999A3
    申请号:SU782622005
    申请日:1978-06-02
    公开日:1982-05-15
    发明作者:Оберер Вальтер
    申请人:За витель；
    IPC主号:
    专利说明:

    The invention relates to a machine tool industry, in particular to devices for securing a grinding or polishing sheet on a mandrel.
    A known clamping mandrel for a sanding or polishing sheet, comprising a cylindrical body with a clamping shank and a central hole in which the clamping rod 1 is rotatably mounted.
    A disadvantage of the known mandrel is that if an axial load on the tool occurs, the grinding or polishing sheet can be pulled back, i.e. unreliable binding takes place.
    The purpose of the invention is to increase the reliability of fastening on the mandrel of a grinding or polishing sheet.
    This goal is achieved in that a longitudinal groove is made in the lower part of the cylindrical body, which is intended to accommodate the ends of the sanding or polishing sheet bent and folded together, and the clamping rod in its lower part is made with a flat pointed end with notches on the narrow sides.
    FIG. 1 shows a clamping op "ravka with a sanding or polishing sheet inserted, longitudinal section; in fig. 2 shows the clamping mandrel in the position of the loose sheet in FIG. 3- the same in the position of the fixed sheet; in fig. 4 - clamping rod; in fig. 5 - mandrel body, longitudinal section; 6, auxiliary view, top view; in fig. 7 - the same, longitudinal section; in fig. 8 - folded sheet, side view.
    The mandrel includes a cylindrical body 1 with a central hole 2, a longitudinal groove 3 in the lower part and a threaded hole 4.
    The threaded hole 4 serves to accommodate an installed bolt 5 with a six- or four-sided b, rigidly connected to the clamping rod 7. The threaded hole 4 also includes a threaded rod 8 of the clamping shank 9.
    权利要求:
    Claims (1)
    [1]
    The clamping rod 7 has a flat pointed end 10, which separates the adjacent ends 11 placed in the hole 12 of the auxiliary grinding device 13 or. polishing sheet 14. On the narrow sides of the clamping rod 7 there are notches 15. The clamping rod 7 is mounted in the housing 1 by means of a threaded sleeve 16. The auxiliary device 13 is made in the form of a prism with a hole 12 for placing the housing 1 of the clamping mandrel together with the sheet 14 and slotted 17 at an acute angle to the longitudinal edge to bend the ends of the grinding or polishing sheet. The installation and fastening of the grinding or polishing sheet on the clamping support is as follows. The grinding or polishing sheet size is pre-calculated depending on the diameter of the treatment. On the sheet 14 obtained, the ends are folded over by means of the auxiliary device 13, for which they are inserted into the spline 17. When folding the sheet 14 of a given size in the auxiliary device 13, it is necessary that the working side, for example, with an abrasive coating, is facing outwards. The sheet 14 is then bent and inserted into the hole 12 of the auxiliary device 13 so that the bent ends contact each other and pass diametrically inside the hole 12. Then the mandrel body 1 is inserted into the auxiliary device so that the bent ends of the sheet 14 pass through the longitudinal groove 3 of the body 1 The clamping rod 7 is inserted when its flat end is located parallel to the bent ends of the sheet 14. With its pointed end 10, the clamping rod extends between them and slightly spreads them apart. When the clamping rod is rotated by 90, the sheet fits snugly and is secured by notches 15, which is maintained even when the mandrel moves axially with the sheet, for example, during honing of long holes. After that, the auxiliary device 13 is removed and the mandrel is ready for operation. The invention improves the reliability of the attachment of a grinding or polishing sheet on a mandrel. Claim mandrel for sanding or polishing sheet, comprising a cylindrical body with a clamping shank and a central hole in which a clamping rod is rotatably mounted, characterized in that, in order to increase the reliability of attachment of the grinding or polishing sheet, in the lower part of the cylindrical body a longitudinal groove is made to accommodate the ends of the sanding or polishing sheet bent and folded together, and the clamping rod in the bottom her part is made with a flat pointed end with notches on the narrow sides. Sources of information taken into account in the examination 1. US Patent 6,03357, published. 1898.
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    类似技术:
    公开号 | 公开日 | 专利标题
    US4113399A|1978-09-12|Knob spring
    US2316257A|1943-04-13|Honing or polishing tool
    SU928999A3|1982-05-15|Chucking mandrel for grinding or polishing sheets
    US4895329A|1990-01-23|Flashlight clamp
    US2597421A|1952-05-20|Abrading unit
    US4488840A|1984-12-18|Rotary cutting tool
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    US2553254A|1951-05-15|Sanding tool
    US1945416A|1934-01-30|Device for feathering arrows
    US2637904A|1953-05-12|Knife having a replaceable blade
    US1853839A|1932-04-12|Roll
    KR102010956B1|2019-08-14|Portable abrasive machine
    US4051637A|1977-10-04|Cylinder internal grinder
    US4872654A|1989-10-10|Work-holding implement and bench-mounted loading fixture therefor
    US2529567A|1950-11-14|Drill chuck key holder
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    US2424167A|1947-07-15|Strip locking means for abrading and polishing machines
    US3005294A|1961-10-24|Honing devices
    US2725694A|1955-12-06|Chuck for holding abrasive elements in web form
    US2192422A|1940-03-05|wallace
    US1968748A|1934-07-31|Blade sharpener
    US4029301A|1977-06-14|Connective means for providing variable attitude
    US2601523A|1952-06-24|Device for use in the stropping of safety razor blades
    US2637953A|1953-05-12|Cylinder surfacing tool
    同族专利:
    公开号 | 公开日
    US4213278A|1980-07-22|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US603357A|1898-05-03|Rotary buffing-roll |
    US1326836A|1919-12-30|Shoe-heel-breast buffer and paper-former |
    US2316545A|1940-01-02|1943-04-13|Carl F Anderson|Holder|
    US2396418A|1945-10-09|1946-03-12|Grenzow Harrison|Abrasive instrument|
    US2450617A|1946-01-25|1948-10-05|Smith Joseph Leigh|Buffing drum|
    US2489722A|1946-04-15|1949-11-29|Julius R Reich|Center lap|
    US2484335A|1949-01-03|1949-10-11|Oscar W Dingerson|Knife sharpener|
    US2553432A|1949-08-30|1951-05-15|Maxwell K Reynolds|Sander|
    US3623280A|1970-05-11|1971-11-30|William C Chesnut|Hand tool for sharpening cutting edges|US4536994A|1983-09-07|1985-08-27|Krebs William T|Curved surface sanding device|
    US6048104A|1996-09-06|2000-04-11|Seiko Seiki Kabushiki Kaisha|Ferrule for use in optical fiber connector|
    US6883292B1|2004-03-22|2005-04-26|Hsiu-Man Yu Chen|Carpet protective film packing device|
    US20160371664A1|2015-06-19|2016-12-22|Ncr Corporation|Slotted rotatable drum and method of using same|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH682977|1977-06-02|
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