GB534447A - Improvements in work holding or chucking mechanism - Google Patents
Improvements in work holding or chucking mechanismInfo
- Publication number
- GB534447A GB534447A GB378740A GB378740A GB534447A GB 534447 A GB534447 A GB 534447A GB 378740 A GB378740 A GB 378740A GB 378740 A GB378740 A GB 378740A GB 534447 A GB534447 A GB 534447A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plunger
- work
- jaws
- disc
- cylinder
- 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
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
- B23B31/16—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving radially
- B23B31/1612—Jaws movement actuated by cam surface in a radial plane
- B23B31/16141—Jaws movement actuated by cam surface in a radial plane using fluid-pressure means to actuate the gripping means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
- B23B31/16—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving radially
- B23B31/1612—Jaws movement actuated by cam surface in a radial plane
- B23B31/16125—Details of the jaws
- B23B31/16129—Form of the jaws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
- B23Q2703/04—Work clamping means using fluid means or a vacuum
Abstract
534,447. Drilling ; screwing; turret workholders. FAIRWEATHER H. G. C. (National Acme Co.). Feb. 29, 1940. No. 3787. [Class 83 (iii)] In a work-holder for drilling and screwing machines adapted for holding articles such as pipe sockets, means are provided for gripping the work and indexing it in two positions 180 degrees apart so that both ends may be operated upon in sequence by the tool. The work is gripped by jaws 1 moved radially in a body 8 by a rotary cam plate 6. For small work the jaws are clamped by a wedge and screw 3 in a holder 2 mounted in a jaw block 5, for intermediate sized work the jaws are mounted in spacers 16 in the block 5, and for large work the jaws are clamped directly by a wedge 3<SP>1</SP> in the block. The blocks are guided by ribs 10 in grooves in the side plates 12 which are attached to the body 8, and members 13, attached by screws 13' to the side plates, carry felt wipers 14 engaging the jaw blocks 5 to exclude cuttings &c. from the cam surfaces. Ejectors 15 attached to the members 13 centralize the work and prevent it from adhering to the jaws when the holder is opened. The cam plate is rotated by a hydraulic plunger 17 operating in a cylinder 18 provided with packing 20 and end covers 21. A pin 19 engages a groove in the plunger to prevent its rotation. The body 8 has trunnions 23<SP>1</SP> bushed at 23 to rotate in bearings 24, 25 in the base of the machine and is indexed by a gear 27 on one trunnion. This gear engages a pinion 32, Fig. 3, driven from a hydraulic motor 29 through gearing 31. An indexing plunger 44 coacts with notches 39 in a disc 38 attached to the trunnion and is moved into engaging position by a spring 48 and is withdrawn by a lever 43 actuated by a hydraulic piston 42. When oil is admitted to cylinder 41 the plunger is removed from the disc and after the piston 42 has uncovered a port 46<SP>1</SP>, oil is allowed to pass from the motor 29 by pipe 46 to an exhaust pipe 47, thereby starting the motor to rotate the gear 27. The plunger 44 rides on the periphery of the disc 38 which recedes towards the notches 39 so that the piston 42 is gradually retracted to reduce the motor speed as the index position is approached, the rotation being finally stopped when the plunger drops into the notch. Pressure is cut off from the cylinder 41 when the plunger is clear of the notch in the disc, and the supply to this cylinder may be controlled by the tool head when it reaches the end of its retractive stroke, or by another part of the machine such as a cam &c. or by hand.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB378740A GB534447A (en) | 1940-02-29 | 1940-02-29 | Improvements in work holding or chucking mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB378740A GB534447A (en) | 1940-02-29 | 1940-02-29 | Improvements in work holding or chucking mechanism |
Publications (1)
Publication Number | Publication Date |
---|---|
GB534447A true GB534447A (en) | 1941-03-06 |
Family
ID=9764903
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB378740A Expired GB534447A (en) | 1940-02-29 | 1940-02-29 | Improvements in work holding or chucking mechanism |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB534447A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0739671A2 (en) * | 1995-04-25 | 1996-10-30 | MDC Max Dätwyler Bleienbach AG | Axle support on a machine |
CN104369035A (en) * | 2014-11-24 | 2015-02-25 | 龙岩市山力工程液压有限公司 | Cylinder pole clamp |
CN104827073A (en) * | 2015-04-15 | 2015-08-12 | 成都市龙泉通惠实业有限责任公司 | Drilling apparatus |
CN110640512A (en) * | 2019-11-19 | 2020-01-03 | 长春工业大学 | Multi-station water pump base hydraulic four-axis machine adds anchor clamps |
CN112496813A (en) * | 2020-12-22 | 2021-03-16 | 合肥皖液液压元件有限公司 | Four-axis hydraulic multi-station integrated tool |
CN113146308A (en) * | 2021-04-09 | 2021-07-23 | 杭伟宁 | Electric automatization rotatable drilling spare anchor clamps |
CN113370098A (en) * | 2021-05-31 | 2021-09-10 | 山东理工职业学院 | Clamp for circular tube |
-
1940
- 1940-02-29 GB GB378740A patent/GB534447A/en not_active Expired
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0739671A2 (en) * | 1995-04-25 | 1996-10-30 | MDC Max Dätwyler Bleienbach AG | Axle support on a machine |
EP0739671A3 (en) * | 1995-04-25 | 1997-07-23 | Daetwyler Ag | Axle support on a machine |
US5785325A (en) * | 1995-04-25 | 1998-07-28 | Mdc Max Datwyler Bleienbach Ag | Shaft bearing on a machine tool |
CN104369035A (en) * | 2014-11-24 | 2015-02-25 | 龙岩市山力工程液压有限公司 | Cylinder pole clamp |
CN104827073A (en) * | 2015-04-15 | 2015-08-12 | 成都市龙泉通惠实业有限责任公司 | Drilling apparatus |
CN110640512A (en) * | 2019-11-19 | 2020-01-03 | 长春工业大学 | Multi-station water pump base hydraulic four-axis machine adds anchor clamps |
CN112496813A (en) * | 2020-12-22 | 2021-03-16 | 合肥皖液液压元件有限公司 | Four-axis hydraulic multi-station integrated tool |
CN112496813B (en) * | 2020-12-22 | 2022-03-11 | 合肥皖液液压元件有限公司 | Four-axis hydraulic multi-station integrated tool |
CN113146308A (en) * | 2021-04-09 | 2021-07-23 | 杭伟宁 | Electric automatization rotatable drilling spare anchor clamps |
CN113370098A (en) * | 2021-05-31 | 2021-09-10 | 山东理工职业学院 | Clamp for circular tube |
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