FR2367576A1 - Grinding arrangement for chamfering threads - using plastic grinding wheel which gives rounded edges to ground face - Google Patents

Grinding arrangement for chamfering threads - using plastic grinding wheel which gives rounded edges to ground face

Info

Publication number
FR2367576A1
FR2367576A1 FR7716229A FR7716229A FR2367576A1 FR 2367576 A1 FR2367576 A1 FR 2367576A1 FR 7716229 A FR7716229 A FR 7716229A FR 7716229 A FR7716229 A FR 7716229A FR 2367576 A1 FR2367576 A1 FR 2367576A1
Authority
FR
France
Prior art keywords
grinding
threads
grinding wheel
chamfering
gives
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
Application number
FR7716229A
Other languages
French (fr)
Other versions
FR2367576B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gema AG
Original Assignee
Gema AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Gema AG filed Critical Gema AG
Publication of FR2367576A1 publication Critical patent/FR2367576A1/en
Application granted granted Critical
Publication of FR2367576B1 publication Critical patent/FR2367576B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H3/00—Making helical bodies or bodies having parts of helical shape
    • B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
    • 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
    • B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
    • B24B3/18—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of taps or reamers
    • B24B3/20—Tapering or chamfering taps or reamers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

The grinding arrangement incorporates a grinding wheel (6) which is mounted on a shaft (5) driven by a motor (4). The wheel consists of superfine silicium grit embedded in a plastic material. A slide (8) can be moved to and fro in front of the grinding wheel. The workpiece (11) of which the edges are to be ground are mounted on the shaft (10) of a motor and gear drive (9). The motor and shaft are mounted at an angle on the reciprocating slide. As the grinding wheel is plastic, the threads of the workpiece penetrate partly into the wheel, because of which the edges of the faces ground will be rounded.
FR7716229A 1976-10-12 1977-05-20 Grinding arrangement for chamfering threads - using plastic grinding wheel which gives rounded edges to ground face Granted FR2367576A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762645913 DE2645913C3 (en) 1976-10-12 1976-10-12 Method for rounding the outer edges of the threads at the thread inlet and / or thread outlet of a thread roll

Publications (2)

Publication Number Publication Date
FR2367576A1 true FR2367576A1 (en) 1978-05-12
FR2367576B1 FR2367576B1 (en) 1982-12-10

Family

ID=5990225

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7716229A Granted FR2367576A1 (en) 1976-10-12 1977-05-20 Grinding arrangement for chamfering threads - using plastic grinding wheel which gives rounded edges to ground face

Country Status (2)

Country Link
DE (1) DE2645913C3 (en)
FR (1) FR2367576A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106736890B (en) * 2016-12-29 2018-09-25 宿迁学院 A kind of secondary operation grinding device for die cutter

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1855668A (en) * 1930-07-21 1932-04-26 Roy H Smith Thread rolling die
GB646843A (en) * 1946-01-10 1950-11-29 Lawrence Francis Southwick Improvements in or relating to tap-grinding fixture
US2607935A (en) * 1948-10-09 1952-08-26 English Steel Corp Ltd Screw threading die and its manufacture
US3481178A (en) * 1967-04-10 1969-12-02 Hi Shear Corp Thread rolling and rolled threaded objects
US3561297A (en) * 1967-04-10 1971-02-09 Hi Shear Corp Method of forming thread rolling die
DE2046287A1 (en) * 1970-09-19 1972-03-23 Doerrenberg & Co Praezisionswe Thread rolling roller

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1855668A (en) * 1930-07-21 1932-04-26 Roy H Smith Thread rolling die
GB646843A (en) * 1946-01-10 1950-11-29 Lawrence Francis Southwick Improvements in or relating to tap-grinding fixture
US2607935A (en) * 1948-10-09 1952-08-26 English Steel Corp Ltd Screw threading die and its manufacture
US3481178A (en) * 1967-04-10 1969-12-02 Hi Shear Corp Thread rolling and rolled threaded objects
US3561297A (en) * 1967-04-10 1971-02-09 Hi Shear Corp Method of forming thread rolling die
DE2046287A1 (en) * 1970-09-19 1972-03-23 Doerrenberg & Co Praezisionswe Thread rolling roller

Also Published As

Publication number Publication date
DE2645913B2 (en) 1980-01-03
FR2367576B1 (en) 1982-12-10
DE2645913A1 (en) 1978-04-13
DE2645913C3 (en) 1980-09-04

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Legal Events

Date Code Title Description
ST Notification of lapse