GB884393A - Apparatus for moving a worktable, drill or other machine tool part to a predetermined position - Google Patents
Apparatus for moving a worktable, drill or other machine tool part to a predetermined positionInfo
- Publication number
- GB884393A GB884393A GB579557A GB579557A GB884393A GB 884393 A GB884393 A GB 884393A GB 579557 A GB579557 A GB 579557A GB 579557 A GB579557 A GB 579557A GB 884393 A GB884393 A GB 884393A
- Authority
- GB
- United Kingdom
- Prior art keywords
- switches
- saddle
- slide
- switch
- drill
- 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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/19—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path
- G05B19/21—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path using an incremental digital measuring device
-
- 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
- B23Q16/00—Equipment for precise positioning of tool or work into particular locations not otherwise provided for
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/42—Servomotor, servo controller kind till VSS
- G05B2219/42199—Fine position with gauge, coarse with limit switch, transducer
Landscapes
- Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
884,393. Drilling &c. machines. UNITED STEEL CO., Ltd. May 20, 1958 [Feb. 20, 1957], No. 5795/57. Class 83 (3). Means for moving a work-table or drill-head &c. to a predetermined position comprises power means for moving the table &c., a member 14 movable accurately relatively to the table to a predetermined position, and an electric switch to stop the power means when -the table reaches a given position relatively to member 14. As shown, hydraulically-effected movements of the table 1 and saddle 29 of a drilling-machine are controlled, but the control may be of movements of the table in one direction and of a drill-head (not shown) in a direction perpendicular to that of the table. The power means may be an electric motor with a brake. Guides 30, Fig. 5, with a brass liner 34 support the table on saddle 29, which moves, perpendicularly to the movement of the table, on guides 39 lined with non-ferrous metal. Further linedguides 44, 45 on the bed engage ribs 47 (Fig. 2, not shown), beneath the saddle. Double-acting hydraulic jacks 51, 48 traverse the table and saddle respectively and are supplied through three-position valves 9, Fig. 1, operated by solenoids 24, 25. The trip-slide 14, carrying adjustable dogs 23a- 23d for operating the roller-carrying levers of micro-switches 22a-22d on table 1, Fig. 6, is positioned along a slideway 53 by a lead-screw 15 driven by a belt 55 from a motor 16. The other end of the lead-screw drives a synchrotransmitter 19 connected electrically to a synchro-receiver 20 in a control panel 18, Fig. 1. A counter 21 connected to the receiver indicates the position of trip-slide 14, and a speed regulator 17 controls the motor. A corresponding trip-slide 56, motor 58, transmitter 60 &c. are provided for the saddle, the control system for the table only being shown in Fig. 1. The Specification describes in detail an electrical circuit (Fig. 7, not shown), controlling operation of jack 51 for positioning the table as decided by the position of tripslide 14. Switches 22a, 22d for deciding the direction of traverse, and switches 22b, 22c for slowing the rate of traverse by closing a solenoid-operated by-pass valve 27 before the table is stopped, are connected to holding circuits and safety circuits so that upon operation of a switch 28 on the control panel 18 the table is positioned automatically. Holding circuits condition the main circuit when the trip-slide releases switches 22a-22c as it is moved from the stop position, Fig. 6, so that when switch 28 is closed the table always follows the slide. Close to the new stop position, the operative switch 22b or 22c, depending on the direction of movement, closes by-pass valve 27 and reduces the rate of traverse before switch 22a or 22d de-energizes the operative solenoid 24 or 25 controlling valve 9. This isolates the jack and stops the table with the switches in the stop position of Fig. 6. The safety circuits prevent operation of the drill-head while the table is being positioned and vice versa. Cables 63 between switches 22 and the control panel pass around a pulley 64. A relief valve 12 limits the pressure in the hydraulic circuit, and a by-pass valve 13 is opened automatically to return the liquid from the pump 6 to a reservoir 5 when the table is stationary.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB579557A GB884393A (en) | 1957-02-20 | 1957-02-20 | Apparatus for moving a worktable, drill or other machine tool part to a predetermined position |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB579557A GB884393A (en) | 1957-02-20 | 1957-02-20 | Apparatus for moving a worktable, drill or other machine tool part to a predetermined position |
Publications (1)
Publication Number | Publication Date |
---|---|
GB884393A true GB884393A (en) | 1961-12-13 |
Family
ID=9802763
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB579557A Expired GB884393A (en) | 1957-02-20 | 1957-02-20 | Apparatus for moving a worktable, drill or other machine tool part to a predetermined position |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB884393A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2088465A1 (en) * | 1970-05-09 | 1972-01-07 | Sibbald Kenneth | |
EP0126373A2 (en) * | 1983-05-24 | 1984-11-28 | Maschinenfabrik Rieter Ag | Automat location system |
-
1957
- 1957-02-20 GB GB579557A patent/GB884393A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2088465A1 (en) * | 1970-05-09 | 1972-01-07 | Sibbald Kenneth | |
EP0126373A2 (en) * | 1983-05-24 | 1984-11-28 | Maschinenfabrik Rieter Ag | Automat location system |
EP0126373A3 (en) * | 1983-05-24 | 1986-07-30 | Maschinenfabrik Rieter Ag | Automat location system |
US4685283A (en) * | 1983-05-24 | 1987-08-11 | Rieter Machine Works, Ltd. | Locating device for service tender |
US4703617A (en) * | 1983-05-24 | 1987-11-03 | Rieter Machine Works, Ltd. | Automat location system |
EP0301252A2 (en) * | 1983-05-24 | 1989-02-01 | Maschinenfabrik Rieter Ag | Automat location system |
EP0301252A3 (en) * | 1983-05-24 | 1989-02-15 | Maschinenfabrik Rieter Ag | Automat location system |
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