GB567429A - An improved machine for screw threading nuts or tubes by tapping - Google Patents
An improved machine for screw threading nuts or tubes by tappingInfo
- Publication number
- GB567429A GB567429A GB737143A GB737143A GB567429A GB 567429 A GB567429 A GB 567429A GB 737143 A GB737143 A GB 737143A GB 737143 A GB737143 A GB 737143A GB 567429 A GB567429 A GB 567429A
- Authority
- GB
- United Kingdom
- Prior art keywords
- spindle
- column
- tapping
- work
- secured
- 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
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
- B23G1/00—Thread cutting; Automatic machines specially designed therefor
- B23G1/16—Thread cutting; Automatic machines specially designed therefor in holes of workpieces by taps
- B23G1/20—Machines with a plurality of working spindles
- B23G1/205—Machines with a plurality of working spindles specially adapted for making nuts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
567,429. Tapping nuts. ROBERTS E. H. May 10, 1943, No. 7371. [Class 83 (iii)] A machine for tapping nuts &c. has a screwthreaded spindle carrying the tap and provided at its upper end with a perforated plate 8 driven by pins 7 on a corresponding plate on the spindle of the electric motor 2. Gearing 13 drives a gear 9 at a reduced speed, the boss of the wheel 9 having a squared thread screw engaging the threads on the spindle. A plate mounted in the spindle between ball thrust bearings carries two rods projecting vertically upwards, one of which passes through a fixed guide, to prevent the plate from rotating, and carries an adjustable stop screw 28 that engages the arm 29 of a mercury switch when the required depth has been tapped; the tap is then unscrewed and when sufficiently clear of the work the other rod 26 engages a stop switch 31, in the circuit of reverse drive leads only, thus bringing the spindle to rest. After the work in the holder 3 has been changed, the machine is restarted by raising the switch arm 29, the switch 31 being reset by a spring. A boss is secured to the shank of the tap and this carries two plates apertured to engage two pins projecting from a corresponding member secured to the spindle, the parts being secured by nuts on the ends of the pins. The parts are supported by a column 19 and a number of these columns are mounted in circular formation in discs 51, 52 carried by a central hollow column 36 rotating on a roller thrust bearing 49 and in a journal bearing 50. The drive is preferably by electric motor (not shown) and is at such a speed that an operator stationed at one spot is able to change the work and restart the spindle during the interval required by the spindle to pass his station. A hopper 46 secured to the upper part of the column surrounds its funnel end to which cutting lubricant is delivered by a pipe 37 leading from a pump (not shown) supplied from a sump 42 by a pipe 43. A fixed valve 41 in the column supplies a series of ports connected by pipes 39 passing in part down the column and leading to delivery nozzles 40, the valve being so set that only the spindles that are tapping receive lubricant. Any overflow from the funnel enters the column by holes 47 and escapes at 48 to the sump together with any leakage past the valve 41. Current to the motors is supplied through slip rings 55. Lubricant draining from the work is collected at 46 and passed to the sump at 45.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB737143A GB567429A (en) | 1943-05-10 | 1943-05-10 | An improved machine for screw threading nuts or tubes by tapping |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB737143A GB567429A (en) | 1943-05-10 | 1943-05-10 | An improved machine for screw threading nuts or tubes by tapping |
Publications (1)
Publication Number | Publication Date |
---|---|
GB567429A true GB567429A (en) | 1945-02-14 |
Family
ID=9831855
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB737143A Expired GB567429A (en) | 1943-05-10 | 1943-05-10 | An improved machine for screw threading nuts or tubes by tapping |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB567429A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3163069A (en) * | 1960-11-26 | 1964-12-29 | Const Mecaniques Et Acronautiq | Cropping machine |
US5526668A (en) * | 1991-10-18 | 1996-06-18 | Institute Of Technology Precision Electrical Discharge Work's | Index-feed machining system |
CN107378496A (en) * | 2017-09-02 | 2017-11-24 | 黄调久 | A kind of chamfering tooth machining unit of cover plate |
CN117020321A (en) * | 2023-09-13 | 2023-11-10 | 路鑫科技(东莞)有限公司 | Nut processing equipment with chip removing function |
CN117798680A (en) * | 2023-12-20 | 2024-04-02 | 十堰瑞虎机械科技有限公司 | Speed reducer shell tapping integrated device |
-
1943
- 1943-05-10 GB GB737143A patent/GB567429A/en not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3163069A (en) * | 1960-11-26 | 1964-12-29 | Const Mecaniques Et Acronautiq | Cropping machine |
US5526668A (en) * | 1991-10-18 | 1996-06-18 | Institute Of Technology Precision Electrical Discharge Work's | Index-feed machining system |
CN107378496A (en) * | 2017-09-02 | 2017-11-24 | 黄调久 | A kind of chamfering tooth machining unit of cover plate |
CN107378496B (en) * | 2017-09-02 | 2023-09-29 | 慈溪市天行电器有限公司 | Chamfering tapping machine for cover plate |
CN117020321A (en) * | 2023-09-13 | 2023-11-10 | 路鑫科技(东莞)有限公司 | Nut processing equipment with chip removing function |
CN117020321B (en) * | 2023-09-13 | 2024-02-20 | 路鑫科技(东莞)有限公司 | Nut processing equipment with chip removing function |
CN117798680A (en) * | 2023-12-20 | 2024-04-02 | 十堰瑞虎机械科技有限公司 | Speed reducer shell tapping integrated device |
CN117798680B (en) * | 2023-12-20 | 2024-05-31 | 十堰瑞虎机械科技有限公司 | Speed reducer shell tapping integrated device |
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