GB824067A - Improvements in or relating to apparatus for cutting screwthreads by means of a press - Google Patents

Improvements in or relating to apparatus for cutting screwthreads by means of a press

Info

Publication number
GB824067A
GB824067A GB29116/57A GB2911657A GB824067A GB 824067 A GB824067 A GB 824067A GB 29116/57 A GB29116/57 A GB 29116/57A GB 2911657 A GB2911657 A GB 2911657A GB 824067 A GB824067 A GB 824067A
Authority
GB
United Kingdom
Prior art keywords
holder
die
press
spindle
cutting
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
GB29116/57A
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.)
John A Chappuis SA Fab
Original Assignee
John A Chappuis SA Fab
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 John A Chappuis SA Fab filed Critical John A Chappuis SA Fab
Publication of GB824067A publication Critical patent/GB824067A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G3/00—Arrangements or accessories for enabling machine tools not specially designed only for thread cutting to be used for this purpose, e.g. arrangements for reversing the working spindle
    • B23G3/005—Arrangements or accessories for enabling machine tools not specially designed only for thread cutting to be used for this purpose, e.g. arrangements for reversing the working spindle for enabling presses to be used for thread cutting

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

824,067. Screw-cutting; punching. FABRIQUE J. A. CHAPPUIS S.A. Sept. 16, 1957 [Oct. 17, 1956], No. 29116/57. Classes 83 (3) and 83 (4). In a press (not shown), means for cutting screw-threads comprises a tap &c. spindle 22, Fig. 3, urged towards the die 2 of the press by a resilient member, e.g. the spring 25, and rotated by a gear train 5-8, 11 (Fig. 2, not shown), on the punch holder 1 of the press, a toothed rack 12, secured at 13 to the die 2 and meshing with gear 11, rotating the spindle 22 upon movement of the holder 1 towards the die. For producing from strip metal a flange with two tapped lugs, at least one punch, shaping tools, forming tools (not shown), and at least one tapping spindle 22 are mounted on the holder 1. Alternatively, the spindle 22 may carry a die for cutting external threads. As depicted, the holder carries a pair of spindles 22, 27, each having driving flats 23 engaged by a sprocket-sleeve 21 driven by a chain 15 engaging a sprocket 10 on shaft 9 of gear 8. Thus, the spindles 22, 27 rotated by feeding the holder 1, need not advance at the same rate as the holder, the springs 25 permitting different rates of feed. The gears 5-8, 11 are mounted in an interchangeable box 4 on the head 1, which is guided on posts 3, and it is stated that threads of different pitches may be cut simultaneously by the spindles.
GB29116/57A 1956-10-17 1957-09-16 Improvements in or relating to apparatus for cutting screwthreads by means of a press Expired GB824067A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH824067X 1956-10-17

Publications (1)

Publication Number Publication Date
GB824067A true GB824067A (en) 1959-11-25

Family

ID=4539734

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29116/57A Expired GB824067A (en) 1956-10-17 1957-09-16 Improvements in or relating to apparatus for cutting screwthreads by means of a press

Country Status (1)

Country Link
GB (1) GB824067A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3162873A (en) * 1962-04-25 1964-12-29 Western Electric Co Press operated tapping apparatus
FR2587637A1 (en) * 1985-09-20 1987-03-27 Telemecanique Electrique TAPPING METHOD ON PRESS AND APPARATUS FOR IMPLEMENTING SAID METHOD

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3162873A (en) * 1962-04-25 1964-12-29 Western Electric Co Press operated tapping apparatus
FR2587637A1 (en) * 1985-09-20 1987-03-27 Telemecanique Electrique TAPPING METHOD ON PRESS AND APPARATUS FOR IMPLEMENTING SAID METHOD
EP0220973A1 (en) * 1985-09-20 1987-05-06 Telemecanique Thread-cutting apparatus for a press

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