US3266519A - Adjustable drain for spark erosion machine - Google Patents

Adjustable drain for spark erosion machine Download PDF

Info

Publication number
US3266519A
US3266519A US327237A US32723763A US3266519A US 3266519 A US3266519 A US 3266519A US 327237 A US327237 A US 327237A US 32723763 A US32723763 A US 32723763A US 3266519 A US3266519 A US 3266519A
Authority
US
United States
Prior art keywords
tank
drain
tube
liquid level
spark erosion
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 - Lifetime
Application number
US327237A
Other languages
English (en)
Inventor
Kintzel Gerhard
Nitsche Gerhard
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.)
Nassovia Werkzeugmaschinenfabrik GmbH
Original Assignee
Nassovia Werkzeugmaschinenfabrik GmbH
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 Nassovia Werkzeugmaschinenfabrik GmbH filed Critical Nassovia Werkzeugmaschinenfabrik GmbH
Application granted granted Critical
Publication of US3266519A publication Critical patent/US3266519A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
    • B23H1/10—Supply or regeneration of working media
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86236—Tank with movable or adjustable outlet or overflow pipe
    • Y10T137/8626—Swinging outlet pipe or spout

Definitions

  • This invention relates to an adjustable drain tube for draining liquid from the workpiece holding tank of a spark erosion machine.
  • the spark erosion of a workpiece is usually done in a tank holding the workpiece which is covered by a dielectric liquid such as petroleum. Inasmuch as this liquid becomes very dirty from the particles composed of residual metallic oxides and from the spark electrode, this liquid is constantly withdrawn from the tank, cleaned by filters, and then recycled into the tank.
  • a dielectric liquid such as petroleum
  • These spark erosion machines usually have mounted on the upper edge of the tank a temperature control and a liquid level control device.
  • the liquid is usually drained through openings in the upper portion of the tank wall or through a drain pipe extending vertically through the bottom of the tank up to the upper edge level of the tank.
  • These drains have the disadvantage in that the tank must always be filled to its upper edge even though the tank need not be only partially filled with liquid in order to cover the workpiece, as, for example, only one-half filled or less if a flat workpiece is being used. Consequently, considerable time is wasted for filling and emptying the tank when it is necessary to inspect the workpiece or adjust or measure the same.
  • drain pipes of various lengths have been used which were inesrted into a drain opening in the bottom of the tank, depending upon the liquid depth desired.
  • Another used draining system is composed of a flexible bellows tube having a drain opening head within which is a central grooved rod and a spring-pressed ball in the groove.
  • This system likewise has the disadvantage in that it merely permits an adjustment of the liquid level in small increments.
  • the flexible bellows tube was non-metallic and deteriorated with age, which resulted in mechanical damages.
  • the object of this invention is to avoid the above disadvantages by producing an adjustable drain for the tank in which the drain opening, together with the temperature and liquid level control means, are mutually simply positionable to any given liquid level in the tank.
  • a drain tube having its upper open intake end positionable to any desired liquid level in the tank and locked in that position and to which is connected the temperature and liquid level control means.
  • the drain tube is pivotally mounted adjacent the bottom of the tank and joined to a parallel control lever which is also pivotally mounted in the horizontal plane of the mounting for the drain tube, and with the lever and drain tu'be connected by a link which carries the temperature and liquid level control means.
  • the two axes of the pivotal mountings for the drain tube and control lever are parallel in the same horizontal plane. This forms a parallelogram system so that the connecting link is horizontal at any height in the tank.
  • a handle is joined to the drain tube which is accessible through the top of the tank.
  • the pivotal mountings of the drain tube and control lever adjacent the bottom of the tank extend through the wall of the tank.
  • a knob threaded on the shaft forming the pivotal axis for the control lever is turnable so as to bear against the wall of the tank and lock the lever in any desired position.
  • the pivotal mounting for the drain tube is composed of a drain pipe rotatably journalled through the wall of the tank and to which the drain tube is rigidly connected, preferably at a right angle.
  • the parallelogram system thus established is composed of the drain tube, the control lever, and the link carrying the temperature and liquid level control means, and which system is swingable on the pivotal mountings. This system has the advantage in that the temperature and liquid level control means remain horizontal at any given depth within the tank and are adjacent to the intake opening of the drain tube. Also, practically any given liquid level in the tank can be set.
  • FIGURE 1 is a cross-sectional view through the spark erosion machine tank of this invention
  • FIGURE 2 is an enlarged detailed partial cross-sectional view taken on the line 2-2 of FIGURE 1;
  • FIGURE 3 is a similar cross-sectional view taken on the line 33 of FIGURE 1.
  • the spark erosion machine 1 includes a workpiece table 2 contained in a tank 3 which is adapted to hold liquid at a level above and covering the workpiece.
  • Tank 3 has an opening 4 closable by a door 5 and locked by means of knobs 6.
  • the wall 7 of tank 3 has adjacent thereto a drain tube 8 which has its lower end pivotally mounted adjacent the bottom of the tank.
  • This pivotal mounting is composed of a fitting 9 comprising a drain pipe 10 to which the drain tube 8 is connected at right angles by a weld 11.
  • Pipe 10 forming the pivoting axis for the tube 8 is drawn up against the wall of the tank by two nuts 12 threaded on the pipe so that the pipe can be rotated without effort.
  • a continuing drain pipe 13 leading to the oil filters communicates with pipe 10 through a seal 14 and a welded-on coupling 15 fastened to tank 3 by three bolts 16.
  • a stud 17 having a journal 18.
  • a link 19 is journalled to the stud and carries a housing 20 in which there is the temperature and liquid level control means.
  • the other end of link 19 is connected to the upper end of control lever 21 by the pivot point 22.
  • the lower end of control lever 21 is connected to a shaft 23 by a weld 24, which shaft is journalled in a bearing 25 extending through wall 7, this bearing being in the same horizontal plane as the drain pipe 10.
  • Drain tube 8 and control lever 21 are parallel to each other.
  • a seal ring 26 prevents leakage around shaft 23.
  • Knob 27 threaded on the outer end of shaft 23 is turnable so that it can be jammed and locked against wall 7 and thus permits an infinitely variable positioning of the intake end of drain tube 8.
  • this parallelogram system can be swung to any position by means of handle 28 and then looked into place by knob 27.
  • the vertical position of drain tube 8 is shown in full lines, while the half-way and lower positions of the parallelogram system are represented by the dotted lines 29 and 30, respectively.
  • the temperature and liquid level control means in housing 20 remains horizontal in any position and always adjacent the upper intake end of drain tube 8.
  • the drain 31 in the bottom of the tank is used for quickly draining the tank and is only incidentally shown.
  • An adjustable drain for the workpiece tank of a spark erosion machine comprising a drain tube, first pivot means positioned adjacent the bottom of said tank for locating the upper intake end of said tube at any given height above the bottom of the tank, a control lever extending parallel to said drain tube, a link between said tube and said lever, temperature and liquid level control means mounted on said link, second pivot means in the horizontal plane of said first pivot means for joining said drain tube and control lever in a swingable parallelogram system, a handle secured to said intake end of said tube, and lock means for holding said tube at the given height.
  • said first pivot means comprising a drain pipe rotatably mounted in the wall of said tank and joined to said tube.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Food-Manufacturing Devices (AREA)
  • Devices For Medical Bathing And Washing (AREA)
US327237A 1962-12-22 1963-12-02 Adjustable drain for spark erosion machine Expired - Lifetime US3266519A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEN22527A DE1293531B (de) 1962-12-22 1962-12-22 Stufenlos hoehenverstellbarer Fluessigkeitsauslass fuer Arbeitsbehaelter an Funkenerosionsmaschinen

Publications (1)

Publication Number Publication Date
US3266519A true US3266519A (en) 1966-08-16

Family

ID=7342194

Family Applications (1)

Application Number Title Priority Date Filing Date
US327237A Expired - Lifetime US3266519A (en) 1962-12-22 1963-12-02 Adjustable drain for spark erosion machine

Country Status (4)

Country Link
US (1) US3266519A (de)
CH (1) CH417791A (de)
DE (1) DE1293531B (de)
GB (1) GB993202A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3592293A (en) * 1970-01-12 1971-07-13 Gen Motors Corp Oil pump with pressure lubricated swivelling auto inlet means
US5385084A (en) * 1992-04-14 1995-01-31 Laibson; Alan Variable flow apparatus for cooking food
EP2138257A1 (de) 2008-06-27 2009-12-30 Agie Sa Elektrische Abgabemaschine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61173821A (ja) * 1985-01-24 1986-08-05 Amada Co Ltd 放電加工装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1291280A (en) * 1916-02-29 1919-01-14 Coleman Du Pont Road Inc Water-supplying apparatus.
US3067358A (en) * 1960-11-02 1962-12-04 Ibm Electro-erosion apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2981822A (en) * 1959-02-16 1961-04-25 Elox Corp Michigan Electrical machining apparatus
US3007861A (en) * 1959-04-06 1961-11-07 Incar Inc Pilot electroplating cell
DE1830897U (de) * 1961-01-14 1961-05-10 Aeg Auslass fuer arbeitsbehaelter von funkenerosionsmaschinen.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1291280A (en) * 1916-02-29 1919-01-14 Coleman Du Pont Road Inc Water-supplying apparatus.
US3067358A (en) * 1960-11-02 1962-12-04 Ibm Electro-erosion apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3592293A (en) * 1970-01-12 1971-07-13 Gen Motors Corp Oil pump with pressure lubricated swivelling auto inlet means
US5385084A (en) * 1992-04-14 1995-01-31 Laibson; Alan Variable flow apparatus for cooking food
EP2138257A1 (de) 2008-06-27 2009-12-30 Agie Sa Elektrische Abgabemaschine

Also Published As

Publication number Publication date
GB993202A (en) 1965-05-26
CH417791A (de) 1966-07-31
DE1293531B (de) 1969-04-24

Similar Documents

Publication Publication Date Title
US3266519A (en) Adjustable drain for spark erosion machine
US2524313A (en) Fill pipe for liquid containers
US3291165A (en) Backwash shield assembly
US2403751A (en) Throttling valve
US3056286A (en) Weld inspection apparatus with two spaced transducers
US3070812A (en) Sink attachment
US3341880A (en) Tank cleaning apparatus
US1734966A (en) Pipe connection for vessels
US1077043A (en) Cylinder washing-machine.
CN209302697U (zh) 桶装料溶解槽自动温控系统
US1936805A (en) Pipe fitting
US2457155A (en) Vent, overflow, and ladder unit for storage tanks
US2623492A (en) Marker gauge for tanks
US2248906A (en) Paper-making apparatus
US1491075A (en) Leveling and adjusting device
US1323234A (en) Liquid measuring and discharging device
US2958164A (en) Grinding machine
US1927447A (en) Cement mixer
US2463171A (en) Tilting device for cooker kettles
US1556596A (en) Manhole or like structure
US2127296A (en) Sample box
CN218824285U (zh) 一种生产质量检测装置
US1274316A (en) Tank-filler.
US2268819A (en) Waste and overflow valve
DE3341203C2 (de)