GB290761A - Improvements in the manufacture of rotary cutting tools - Google Patents

Improvements in the manufacture of rotary cutting tools

Info

Publication number
GB290761A
GB290761A GB526727A GB526727A GB290761A GB 290761 A GB290761 A GB 290761A GB 526727 A GB526727 A GB 526727A GB 526727 A GB526727 A GB 526727A GB 290761 A GB290761 A GB 290761A
Authority
GB
United Kingdom
Prior art keywords
blank
milling
spindle
carries
slide
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.)
Expired
Application number
GB526727A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB526727A priority Critical patent/GB290761A/en
Publication of GB290761A publication Critical patent/GB290761A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
    • B23P15/34—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools milling cutters

Abstract

290,761. Tscherne, A. Feb. 24, 1927. Milling-machines; milling-cutters; reamers. - Rotary cutting tools such as milling-cutters, reamers and the like have cutting-edges which are inclined to the axis of rotation of the tool are made by mounting the blank on a rotatable arbor carried by a reciprocating slide which is moved under a profiled milling-cutter while the blank is simultaneously oscillated to a varying degree to produce a tapered groove and to form oppositely inclined helical teeth. The table T of a milling-machine which is movable transversely of the milling-spindle Z and is mounted on the longitudinal slide S, carries a housing 1 supporting in bearings a hollow shaft 2. The latter carries a toothed segment 3 engaging a vertically-sliding rack 4 which has a pin 6 engaging a block working in a slotted arm 28 pivoted at 7 in a bearing 9 fixed to the slide S. The arm 28 is oscillated by means of a crank 10 on a driven shaft 14. The hollow spindle 2 carries a spindle 32 which is provided with a dividing- plate 16 coacting with an index pin 17 secured to the spindle 2. The blank A is secured by nuts 21 to a mandrel 20 which is carried between centres 22, 23 and is connected to the spindle 32 by a coupling-sleeve 19. In operation, the end b of the blank is brought beneath the profiled milling-cutter H and the blank is oscillated through the lever 28, rack 4 and segment 3. As the slide T is moved to the right, Fig. 2, the rack pin 6 approaches the pivot 7 of the lever 28 so that the oscillation of the blank gradually decreases to zero and a tapering groove f forming a cutting-edge c and a back edge c' is produced. The blank is then indexed and the operation repeated. In a modification, Figs. 11 and 12 a frame B, pivoted on a lower frame R at 69 carries the blank A between centres 42, 43, the dividing movement being effected by means of a notched disc 44. A slot 65, provided in the frame B, is engaged by a block 59 actuated by an adjustable crank-disc 57 driven through worm gearing from a pulley 52. During the traversing of the table F under the milling- cutter H, the frame B is thus rocked about its pivot 69 to produce a tapering groove. After completion of a groove the blank is indexed and the operation repeated. When all the grooves 63 have been milled out, the blank is reversed end for end on its mandrel and the oppositelytapering grooves 64 are formed in a similar way.
GB526727A 1927-02-24 1927-02-24 Improvements in the manufacture of rotary cutting tools Expired GB290761A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB526727A GB290761A (en) 1927-02-24 1927-02-24 Improvements in the manufacture of rotary cutting tools

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB526727A GB290761A (en) 1927-02-24 1927-02-24 Improvements in the manufacture of rotary cutting tools

Publications (1)

Publication Number Publication Date
GB290761A true GB290761A (en) 1928-05-24

Family

ID=9792866

Family Applications (1)

Application Number Title Priority Date Filing Date
GB526727A Expired GB290761A (en) 1927-02-24 1927-02-24 Improvements in the manufacture of rotary cutting tools

Country Status (1)

Country Link
GB (1) GB290761A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102689242A (en) * 2012-06-20 2012-09-26 娄底贝尔科技有限公司 Automatic feeding mechanism for centerless grinder
CN102689240A (en) * 2012-05-29 2012-09-26 哈尔滨汽轮机厂有限责任公司 Corn milling cutter and method for machining double-head corrugated corn milling cutter by using corn milling cutter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102689240A (en) * 2012-05-29 2012-09-26 哈尔滨汽轮机厂有限责任公司 Corn milling cutter and method for machining double-head corrugated corn milling cutter by using corn milling cutter
CN102689240B (en) * 2012-05-29 2014-09-17 哈尔滨汽轮机厂有限责任公司 Corn milling cutter and method for machining double-head corrugated corn milling cutter by using corn milling cutter
CN102689242A (en) * 2012-06-20 2012-09-26 娄底贝尔科技有限公司 Automatic feeding mechanism for centerless grinder

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