US3225493A - Thin section trueing machine - Google Patents

Thin section trueing machine Download PDF

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Publication number
US3225493A
US3225493A US271100A US27110063A US3225493A US 3225493 A US3225493 A US 3225493A US 271100 A US271100 A US 271100A US 27110063 A US27110063 A US 27110063A US 3225493 A US3225493 A US 3225493A
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US
United States
Prior art keywords
connecting rod
shaft
plate
spindle
movement
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
US271100A
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English (en)
Inventor
Georges L Kulbicki
Sahores Jean
Vanuxem Jacques
Enjalbert Andre
Capiaux Jacques
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.)
Societe Nationale des Petroles dAquitaine SA
Original Assignee
Societe Nationale des Petroles dAquitaine SA
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Publication date
Application filed by Societe Nationale des Petroles dAquitaine SA filed Critical Societe Nationale des Petroles dAquitaine SA
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Publication of US3225493A publication Critical patent/US3225493A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/10—Single-purpose machines or devices
    • B24B7/16—Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings
    • B24B7/162—Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings for mass articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B37/00—Lapping machines or devices; Accessories
    • B24B37/04—Lapping machines or devices; Accessories designed for working plane surfaces
    • B24B37/042—Lapping machines or devices; Accessories designed for working plane surfaces operating processes therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
    • G01N1/06—Devices for withdrawing samples in the solid state, e.g. by cutting providing a thin slice, e.g. microtome
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/32—Polishing; Etching
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
    • G01N1/06—Devices for withdrawing samples in the solid state, e.g. by cutting providing a thin slice, e.g. microtome
    • G01N2001/061—Blade details
    • G01N2001/063—Blade details with sawing action

Definitions

  • the machine comprises a frame, the top of which is provided with a bearer plate which is preferably slightly inclined to the horizontal and to which the mechanical parts of the machine are secured; these parts comprise firstly a sectionholder system consisting of a rotating section-holder plate disposed at the end of a shaft rotated by a motor, and secondly a grindstone holder system consisting of a shaft disposed in parallel relationship to the section-holder system shaft and bearing the grindstone at the end; this shaft is rotated by a second motor and is also so mounted as to be displaceable axially by a Vernier controlling a nut and screw system acting on the said shaft to bring the grindstone away from or up to the section-holder plate; the machine also comprises an automatic feed and stop for the grindstone and a spraying system for the latter.
  • the automatic grindstone feed and stop system comprises a connecting rod and crank system associated with the free end of the section-holder system shaft, the free end of the connecting rod controlling a rocking lever which acts through the agency of a pawl borne by said rocking lever on a ratchet rigidly connected to the grindstone holder system shaft control Vernier.
  • the rotation of the section-holder system shaft is thus converted by the connecting rod and crank system into a reciprocating movement transmitted to the rocking lever; this movement takes the form of a rotation by a fraction of a revolution on each oscillation of the connecting rod because the ratchet is driven in only one direction as a result of the shape of the teeth of this ratchet; the grindstone is thus gradually brought up to the sectionholder plate.
  • the connecting rod and crank system preferably comprises a crank plate rigidly connected to the free 'end of the shaft of the section-holder system and formed with a diametric slot in which a pivot is adjustably locked, the connecting rod being articulated on said pivot.
  • the end of the connecting rod connected to the rocking lever is advantageously formed with an aperture in which engages a stud rigidly connected to the said rocking lever, said aperture being of a length such that the connecting rod does not drive the rocking lever when thestud slides in the said aperture; a hook-shaped stud locking element is articulated on this end of the connecting rod and is held in the locking position by a movable stop finger which is laterally displaced by the grindstone holder system to connect the stud to the connecting rod and prevent it from sliding in the aperture; this locking element releases the connecting rod stud by a rocking movement as soon as the stop finger is retracted at the end of the grindstone feed movement.
  • FIGURE 1 is a side view of the trueing machine
  • FIGURE 2 is a plan view of this machine
  • FIGURE 3 is a detail view showing the grindstone holder system and the auxiliary elements
  • FIGURE 4 is a detail view showing the section-holder system.
  • FIGURE 5 is a diagram showing the principle of the automatic grindstone feed and stop system.
  • the thin section trueing machine consists essentially of a frame, mechanical elements and a spraying system.
  • This arrangement enables the thin section supporting plate, which will be described hereinafter, to be inclined about 10 to the vertical. This improves the adhesion of the thin sections to the supporting plate, gravity no longer acting tangentially on these sections.
  • the mechanical elements comprise essentially: a section-holder system, a grindstone-holder system, a grindstone driving motor, and an automatic grindstone feed and stop system.
  • the section-holder system (FIGURE 4) comprises a support 3 fixed beneath the bearer plate 2 and having two bearings 4, 5 exactly in line. These two bearings receive the drive shaft 6 for the section-holder plate 7 through two opposed taper roller bearings of any conventional type, not shown, to eliminate axial play of the shaft in the bearings.
  • the plate 7 is fixedly mounted at the end of the shaft 6, for rotation therewith.
  • a sprocket wheel 8 is keyed on the shaft between the two bearings and by means of a chain 9 receives the rotation transmitted by a motor and reduction gear 10 secured to the bottom part of the frame 1.
  • the grindstone-holder system (FIGURE 3) comprises a shaft or spindle 11 mounted in suitable bearings 12 to eliminate axial play of the shaft 11 therein.
  • the support 13 for these bearings slides parallel to the shaft 6 in a conventional dovetail which includes a male guide 14 extending upwardly from the support 13, fitted over a female guide 15 fixed to the underside of the bearer plate 2 and in strict parallel relationship to the shaft 6 for the sectionholder plate 7.
  • a grindstone 18 is fixedly mounted on the end of the shaft 11 for rotation therewith and can be moved away from or towards the section-holder plate 7 by means of a Vernier 16 which controls a nut and screw system 17 connected with the male guide 14.
  • the latter has an ex tension 17a bored and tapped to threadably receive the screw 17. Rotation of the screw 17 causes the extension 1711 and the male guide 14 to reciprocate with the shaft 11 which is arranged in parallel relationship to the shaft 6.
  • the grindstone 18 is rotated by a motor 19 fixed beneath the bearer plate 2, through a transmission system comprising pulleys 20, 21 and belts 22.
  • the grindstone driving pulley 21 is arranged to slide on the spindle 11.
  • the automatic grindstone feed and stop system (FIG- URE 5) comprises a connecting rod 23, one end of which is connected to a crank plate 24 fixed on the shaft 6 for driving the plate 7.
  • This crank plate is formed with a diametric slot in which a pivot 26 is adjustably locked, the connecting rod being articulated on this pivot; movement of the pivot 26 in the slot 25 moves the end of the connecting rod away from the centre of the crank plate 24 to a greater or lesser extent which gives a varying amplitude of movement of the said connecting rod.
  • the connecting rod 23 is formed with an elongated aperture 27 in which engages a stud 28 fixed to a rocking lever 29 fitted over the screw 17 of the vernier 16.
  • a pawl 30 is provided at the top of the lever 29 and acts on a ratchet 31 connected to the Vernier 16.
  • a hook-shaped bolt 32 articulated at 33 on the connecting rod 23 is kept in the raised locking position by a stop finger 34 fixed to a lug 35 connected to the grindstoneholder system and advancing therewith.
  • the end of the finger 34 is retracted from beneath the bolt 32 at the end of the grindstone advance movement, the bolt rocks clockwise as viewed in FIG. 5 and frees the stud 28 which then slides freely in the elongated aperture 27 and the grindstone feed stops.
  • This automatic grindstone feed and stop system is therefore adjustable at two places: firstly, the amplitude of the movement of the connecting rod 23 can be adjusted, i.e., the number of teeth of the ratchet 31 driven on each oscillation of the lever 29 can be varied, by connecting the end of the connecting rod at a greater or lesser distance from the centre of the crank plate 24; secondly, the final thickness of the sections is determined by varying the location of the end of the stop finger 34 by means of a knurled knob 36 screwed. on the finger 34. A return spring 37 acting on a shoulder 38 of this finger prevents any movement of the finger 34 with respect to the lug 35.
  • the machine also comprises a spraying system (FIG- URE 3).
  • Spraying plays an important part in the grinding of rock samples. It is also a vital factor in the life of the grindstone. It facilitates the work of the latter and contributes greatly to the finish of the thin sections.
  • a petroleum spraying system used for some rocks decomposed by water (for example clays) or a water spraying system.
  • a system of the former type is shown in FIG- URE 3 and comprises a recovery tank 39 provided beneath the grindstone 18 and a settling tank 40 provided at the bottom of the frame 1.
  • a pump 41 rests on the latter and delivers petroleum to the grindstone through two swivelling jets 42, 43.
  • tap water is supplied to the same jets and is allowed to drain away.
  • a hinge-mounted casing 44 protects the machine from being splashed with the spraying liquid.
  • the machine operates as follows: the rock samples are first rough-cut with a saw and then stuck to glass plates. These plates are disposed on the circular section-holder plate 7 where they are held simply by adhesion to the glass surface of the plate. Adhesion may be improved by grooving the central part of the housing of each plate; the recess thus formed behind the plate communicates through an aperture in the plate with a space in which a negative pressure is maintained, for example by a hard rubber bulb of a few cubic centimetres capacity fixed to the actual plate. The bulb is squeezed when the plate is put into position and is then released to create a partial vacuum behind the sample which is thus firmly held.
  • the plates are held by a frame projecting slightly less than the thickness of the glass plates.
  • the section-holder plate is rotated by a switch-controlled motor and reduction gear 10.
  • the grindstone 18 is rotated by a switch controlled motor independent of the above-mentioned motor and moves axially.
  • the thin sections face the grindstone.
  • the latter is brought towards the sections by means of a vernier 16 to give a first contact with the rock samples. The operator then operates the automatic feed and stop system and then only has to watch the machine without intervening.
  • the automatic feed and stop system stops and the grindstone feed ceases.
  • the two switches are switched off and the sections are withdrawn ready to receive their cover glass or pro tective varnish.
  • a transparent material may be used for the bottom of the plate recess; and a source of focussed polarised light may be provided behind the section-holder plate.
  • a grinding machine comprising: a frame; a shaft rotatably mounted on said frame; a work-holder plate fixedly mounted on one end of said shaft and having a surface thereof for carrying the work facing toward said shaft; support means mounted on said frame for sliding movement parallel to said shaft; 9.
  • grindstone spindle rotatably mounted on said support means for sliding therewith; an abrading member fixedly mounted on one end of said spindle with the abrading surface thereof facing away from said spindle and toward said surface of said plate for cooperation therewith; feed means for moving said support means toward and away from said plate; means for rotating said shaft; means for rotating said spindle; an adjustable crank fixedly mounted on said shaft for rotation therewith; a connecting rod secured at one end thereof to said crank; one-way drive means operably connected to said feed means for moving said support means toward said plate upon actuation thereof; means operably connecting the other end of said connecting rod to said one-way drive means for selectively actuating it and for movement relative thereto; said last named means including a lost motion connection between said other end of said connecting rod and said one-way drive means, a locking element mounted on said connecting rod for movement between a first position locking said connecting rod to said one-way drive means for simultaneous movement of said connecting rod and said drive means and a second position permitting relative movement between said connecting rod and said drive means
  • a grinding machine comprising: a frame, a shaft rotatably mounted on said frame and inclined at an acute angle to the horizontal with one end thereof at a lower elevation than the other end; a work-holder plate fixedly mounted on said one end of said shaft and having a surface thereof for carrying the work facing toward said shaft; support means mounted on said frame for sliding movement parallel to said shaft; a grindstone spindle rotatably mounted on said support means for sliding therewith; an abrading member fixedly mounted on one end of said spindle with the abrading surface thereof facing away from said spindle and toward said surface of said plate for cooperation therewith; feed means for moving said support means toward and away from said plate; means for rotating said shaft; and means for rotating said spindle, an adjustable crank fixedly mounted on said shaft for rotation therewith, a connecting rod secured at one end thereof to said crank; a rocking lever mounted on said feed means for rotative movement relative thereto; a one-way drive means operably connecting said lever and said feed means for moving said support means toward said plate upon rock
  • a grinding machine comprising: a frame; a shaft rotatably mounted on said frame; a work-holder plate fixedly mounted on one end of said shaft and having a flat surface thereof for carrying the work, said flat surface facing toward said shaft and oriented normally thereto; support means mounted on said frame for sliding movement parallel to said shaft; a spindle rotatably mounted on said support means so as to be parallel to the sliding movement of the latter and adapted to slide therewith; an abrading member fixedly mounted on one end of said spindle and having a flat abrading surface parallel to and facing toward said surface of said plate for cooperation therewith; feed means actuated by rotation of said shaft for sliding said support means for decreasing by step-wise movement the distance separating the work-holder plate from the abrading member; means for rotating said shaft; means for rotating said spindle; and control means on said support means governed by the position of said support means for controlling said feed means during a grinding operation such that a given work piece is ground in steps down to a desired thickness at which the control means arrests

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
US271100A 1962-04-10 1963-04-08 Thin section trueing machine Expired - Lifetime US3225493A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR893892A FR1344237A (fr) 1962-04-10 1962-04-10 Machine à rectifier les plaques minces

Publications (1)

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US3225493A true US3225493A (en) 1965-12-28

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US271100A Expired - Lifetime US3225493A (en) 1962-04-10 1963-04-08 Thin section trueing machine

Country Status (6)

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US (1) US3225493A (xx)
FR (1) FR1344237A (xx)
GB (1) GB956758A (xx)
LU (1) LU43499A1 (xx)
OA (1) OA00479A (xx)
SE (1) SE302577B (xx)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3672099A (en) * 1970-09-03 1972-06-27 Univ California Automatic rock thinsectioning machine
US4318250A (en) * 1980-03-31 1982-03-09 St. Florian Company, Ltd. Wafer grinder
CN109580313A (zh) * 2019-01-22 2019-04-05 中国热带农业科学院环境与植物保护研究所 一种电镜样品多功能超薄修切装置
CN111796362A (zh) * 2018-08-08 2020-10-20 杭州富通通信技术股份有限公司 用于预制尾纤的研磨设备
CN114147560A (zh) * 2021-12-13 2022-03-08 深圳明嘉瑞科技有限公司 一种芯片的核心材料硅片加工及打磨装置
CN115122170A (zh) * 2022-06-16 2022-09-30 深圳大方智能科技有限公司 一种地面研磨机器人的控制方法
CN115372069A (zh) * 2022-10-25 2022-11-22 成都兰腾科技有限公司 一种检测样本取样用机械手机构

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3289663A (en) * 1964-07-03 1966-12-06 Paul O Cary Automatic sectioning machines
AT526928B1 (de) * 2023-05-08 2024-09-15 Univ Linz Vorrichtung zum Bearbeiten einer Probe für eine Untersuchung mithilfe einer Transmissionselektronenmikroskopie

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US920010A (en) * 1908-12-15 1909-04-27 Alex Bogdanffy Apparatus for cutting cork sheets.
US1015567A (en) * 1909-11-20 1912-01-23 Abraham B Landis Grinding-machine.
US1293595A (en) * 1918-07-01 1919-02-04 Colin M Williamson Sensitizing-medium-changing mechanism.
US1299717A (en) * 1918-04-08 1919-04-08 Rivett Lathe And Grinder Company Feed mechanism.
US1876202A (en) * 1930-02-13 1932-09-06 Seth R Campbell Surfacing machine
US1978674A (en) * 1930-03-21 1934-10-30 American Coil Spring Company Grinding machine
US2105872A (en) * 1934-07-23 1938-01-18 Illinois Iron & Bolt Company Grinding machine
US2148744A (en) * 1936-05-28 1939-02-28 Gardner Machine Co Grinding machine
FR860702A (fr) * 1939-07-04 1941-01-22 Machine semi-automatique à rectifier les arasements de ressorts à boudin
US2618911A (en) * 1950-07-08 1952-11-25 Norton Co Lapping machine
US2634558A (en) * 1947-04-14 1953-04-14 John M Wolfskill Piezoelectric crystal lapping apparatus
US2839877A (en) * 1954-03-29 1958-06-24 Crane Packing Co Lapping machine

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US920010A (en) * 1908-12-15 1909-04-27 Alex Bogdanffy Apparatus for cutting cork sheets.
US1015567A (en) * 1909-11-20 1912-01-23 Abraham B Landis Grinding-machine.
US1299717A (en) * 1918-04-08 1919-04-08 Rivett Lathe And Grinder Company Feed mechanism.
US1293595A (en) * 1918-07-01 1919-02-04 Colin M Williamson Sensitizing-medium-changing mechanism.
US1876202A (en) * 1930-02-13 1932-09-06 Seth R Campbell Surfacing machine
US1978674A (en) * 1930-03-21 1934-10-30 American Coil Spring Company Grinding machine
US2105872A (en) * 1934-07-23 1938-01-18 Illinois Iron & Bolt Company Grinding machine
US2148744A (en) * 1936-05-28 1939-02-28 Gardner Machine Co Grinding machine
FR860702A (fr) * 1939-07-04 1941-01-22 Machine semi-automatique à rectifier les arasements de ressorts à boudin
US2634558A (en) * 1947-04-14 1953-04-14 John M Wolfskill Piezoelectric crystal lapping apparatus
US2618911A (en) * 1950-07-08 1952-11-25 Norton Co Lapping machine
US2839877A (en) * 1954-03-29 1958-06-24 Crane Packing Co Lapping machine

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3672099A (en) * 1970-09-03 1972-06-27 Univ California Automatic rock thinsectioning machine
US4318250A (en) * 1980-03-31 1982-03-09 St. Florian Company, Ltd. Wafer grinder
CN111796362A (zh) * 2018-08-08 2020-10-20 杭州富通通信技术股份有限公司 用于预制尾纤的研磨设备
CN109580313A (zh) * 2019-01-22 2019-04-05 中国热带农业科学院环境与植物保护研究所 一种电镜样品多功能超薄修切装置
CN109580313B (zh) * 2019-01-22 2024-04-19 中国热带农业科学院环境与植物保护研究所 一种电镜样品多功能超薄修切装置
CN114147560A (zh) * 2021-12-13 2022-03-08 深圳明嘉瑞科技有限公司 一种芯片的核心材料硅片加工及打磨装置
CN115122170A (zh) * 2022-06-16 2022-09-30 深圳大方智能科技有限公司 一种地面研磨机器人的控制方法
CN115122170B (zh) * 2022-06-16 2023-08-29 深圳大方智能科技有限公司 一种地面研磨机器人的控制方法
CN115372069A (zh) * 2022-10-25 2022-11-22 成都兰腾科技有限公司 一种检测样本取样用机械手机构

Also Published As

Publication number Publication date
SE302577B (xx) 1968-07-22
GB956758A (en) 1964-04-29
FR1344237A (fr) 1963-11-29
LU43499A1 (xx) 1963-06-06
OA00479A (fr) 1966-07-15

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