GB803725A - Universal drilling machine - Google Patents
Universal drilling machineInfo
- Publication number
- GB803725A GB803725A GB3685356A GB3685356A GB803725A GB 803725 A GB803725 A GB 803725A GB 3685356 A GB3685356 A GB 3685356A GB 3685356 A GB3685356 A GB 3685356A GB 803725 A GB803725 A GB 803725A
- Authority
- GB
- United Kingdom
- Prior art keywords
- turret
- head
- heads
- cam
- switch
- 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
- B23B—TURNING; BORING
- B23B39/00—General-purpose boring or drilling machines or devices; Sets of boring and/or drilling machines
- B23B39/16—Drilling machines with a plurality of working-spindles; Drilling automatons
- B23B39/24—Drilling machines with a plurality of working-spindles; Drilling automatons designed for programme control
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
803,725. Multiple-spindle drilling-machines. HARTFORD SPECIAL MACHINERY CO. Dec. 3, 1956, No. 36853/56. Class 83 (3). In an automatic multi-head drilling-machine, having tool-heads angularly spaced about a work-turret and with means for carrying one or a number of workpieces on the turret from one head to the next, the heads are controlled by cams adjustably-secured to a shaft coupled to the turret. The turret consists of a table 10, driven by a motor DM through a belt-driven shaft and clutch 19, Fig. 3, and worm-gears 16, 14. The clutch 19 is positive for forward drive, but slips when the index-plate 11 is reversely rotated to engage one of its teeth 60 with a stop 56. The table 10 is angularlyadjustable on the index-plate 11 by a pin 20 engaging one of the holes 20<SP>1</SP>, Figs. 3 and 6, and carries a spiral-gear 21 driving a spiral-gear 22 on a shaft 23, connected by a releasable-coupling 24 to a control-shaft 25, which carries a controlcam IC, Fig. 10, an indexing-cam FIC, and drill-head control-cams 1HC-4HC. Shaft 25 drives cams 1HC-4HC through frictionclutches 33; drives cam IC directly, and drives cam FIC through a 1: 2 reduction-gear 45, 49. Clutches 33 are engaged by an adjustablespring 41. The drill-heads 1H-4H are carried by pillars C on brackets K which are angularlyadjustable about the turret 10 by worms 4 on the brackets engaging an arcuate rack 5 on a control-support 13, clamping being effected by bolts and T-slots 3, 7. Operation. In an example described, for producing identical holes in eight workpieces spaced 45 degrees apart on turret 10, head 1H drills a small hole, head 2H enlarges part of this hole and heads 3H, 4H ream the two bores. In the starting-position, a tooth 60 of the indexplate 11 is pressed hard against the stop 56, and on manually-actuating a start-switch and a cycle-switch, head 1H is fed towards the first workpiece, either pneumatically or by a drive from the spindle-rotating-motor. After drilling to a predetermined depth, a limit-switch reverses the feed, but acts through a time-delay to allow the tool to clear the hole a solid depthstop (not shown), determining the exact depth of the hole. On return of head 1H, limit switches are operated to withdraw index-stop 60 and rotate the turret in the forward direction. The turret indexes the work, a latch-switch LLS opening as the latch disengages the index-plate 11, and the index-cam IC moves a lobe 69 away from a switch DLS. Simultaneously, the cam 1HC rotates with shaft 25 until contacting a limit-switch 83 (not shown), a solenoid releasing latch 94, Fig. 10, to free the cam 2HC. The assembly is arrested by a second lobe on cam IC, contacting the switch DLS, relays are energized, causing reversal of direction, and the assembly moves sufficiently to force the latch against the teeth of index-plate 11, the clutch 19, Fig. 3, preventing damage due to possible over-run of the motor D.M. The heads 1H, 2H approach the work, head 1H drilling a hole in the second workpiece and the head 2H enlarging part of the hole in the first workpiece. Similarly, heads 3H, 4H perform subsequent reaming-operations on the work, the indexing- cam FIC, due to its 1: 2 ratio with the turret, allowing the turret to rotate twice per cycle so that eight workpieces are machined by the four heads in one revolution of the turret. The drill-heads may operate horizontally, or at different inclinations, and may operate on a single workpiece indexed by the turret 10.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3685356A GB803725A (en) | 1956-12-03 | 1956-12-03 | Universal drilling machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3685356A GB803725A (en) | 1956-12-03 | 1956-12-03 | Universal drilling machine |
Publications (1)
Publication Number | Publication Date |
---|---|
GB803725A true GB803725A (en) | 1958-10-29 |
Family
ID=10391707
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3685356A Expired GB803725A (en) | 1956-12-03 | 1956-12-03 | Universal drilling machine |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB803725A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104384932A (en) * | 2014-10-23 | 2015-03-04 | 平湖市品耀机器自动化有限公司 | Multi-station combined drilling machine |
CN107253064A (en) * | 2017-07-31 | 2017-10-17 | 毛宏岗 | A kind of rack bolt ball datum hole Digit Control Machine Tool |
CN112388018A (en) * | 2020-11-18 | 2021-02-23 | 山东艾泰克环保科技股份有限公司 | Automatic tapping equipment for vehicle-mounted air filter fixing hole |
CN114054982A (en) * | 2021-12-31 | 2022-02-18 | 西安睿智水射流科技有限公司 | Metal impeller laser cutting linkage revolving stage |
-
1956
- 1956-12-03 GB GB3685356A patent/GB803725A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104384932A (en) * | 2014-10-23 | 2015-03-04 | 平湖市品耀机器自动化有限公司 | Multi-station combined drilling machine |
CN107253064A (en) * | 2017-07-31 | 2017-10-17 | 毛宏岗 | A kind of rack bolt ball datum hole Digit Control Machine Tool |
CN112388018A (en) * | 2020-11-18 | 2021-02-23 | 山东艾泰克环保科技股份有限公司 | Automatic tapping equipment for vehicle-mounted air filter fixing hole |
CN112388018B (en) * | 2020-11-18 | 2021-09-14 | 山东艾泰克环保科技股份有限公司 | Automatic tapping equipment for vehicle-mounted air filter fixing hole |
CN114054982A (en) * | 2021-12-31 | 2022-02-18 | 西安睿智水射流科技有限公司 | Metal impeller laser cutting linkage revolving stage |
CN114054982B (en) * | 2021-12-31 | 2022-04-08 | 西安睿智水射流科技有限公司 | Metal impeller laser cutting linkage revolving stage |
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