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US2424109A - Crankshaft grinding machine - Google Patents

Crankshaft grinding machine Download PDF

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Publication number
US2424109A
US2424109A US694883A US69488346A US2424109A US 2424109 A US2424109 A US 2424109A US 694883 A US694883 A US 694883A US 69488346 A US69488346 A US 69488346A US 2424109 A US2424109 A US 2424109A
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US
United States
Prior art keywords
carriage
grinding
crankshaft
plate
shaft
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
US694883A
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English (en)
Inventor
Jules Miesse
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US2424109A publication Critical patent/US2424109A/en
Anticipated expiration legal-status Critical
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
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/36—Single-purpose machines or devices
    • B24B5/42—Single-purpose machines or devices for grinding crankshafts or crankpins

Definitions

  • This invention relates to crankshaft grinding or truing machines andihas for'its particular objectto design a machine of this 'type' that would be of compact and inexpensive construction and Such as would “enable grinding operations to be effected in a Ashorter time.
  • V,the crankshaft grinding' machine is' so designed as to enable' Athe crankshaft to be ground in a vertical position and comprises a standard'having slidably mounted thereon a carriage balanced by a counterweight the said carriage carrying a transverse shaft having slidably mounted thereon and suspended for oscillatory movement lthereon the' grinding wheel carrier mechanism; a resilient locking device being provided for keeping the'said grinding wheel carrier mechanism in its 'operative' position and for enabling disengagement and 'reeengagement thereof from and Yinto said' position vwithout disturbing the micrometer feed adjustment of the grinding wheel carrier mechanism.
  • the vertical movement Yof ⁇ the 'carriagev may be effected through an optional vgeared down mechanism and a quick action' mechanism.
  • Fig. 1 is a 'frontelevati'on of the 'crankshaft' grinding machine
  • Fig. 2 is a sectional'view alongthe broken line II-II'of'Fig. 1'; l
  • Fig. 3 is a front View, drawnto a-larger'scale of the carriage forming apart 'of the machine and having mounted thereon 'the lgrindingmechani'sm;
  • Fig. 4 is afragmentarysectional view taken at an angle of 45? with respectto Fig. 3;
  • 5 is adet'ail' view showing' some of the constitutive parts of the grinding mechanism.
  • Fig. 6 is aside 'view' of"Fig. 3;
  • Fig. '7 is aplan view of vFig'. 3.
  • the'table I of a base 2 (Figs. 1 and 2)' has pivoted thereto a horizontal circular plate 3 formed 'with a 'peripherical' .groove 4 ⁇ for engagement of a V-belt 5 ⁇ d1'iven' 4fromlthe iiywheel 6 of a motor 1.
  • VTh'elatter is pivotally supported on a pin 8, the said motor being 'adapted to be locked on the said pin, in 'various angular positions by lmeans of a'bolt 9, thus providing for the adjustment of the tension of the belt'5.
  • the table I has formedtherewith 'or otherwise secured thereto a 'standard 'IIJ comprising. a" slide l I having'slidablymounted'thereon a carriage I 2 balancedb'y acouterweight I'3 through the me-y 2 diu'm of a chain I4 adapted to run over pulleys 15.
  • a second plate I6 guided in a' diametrically ex- ⁇ tending groove I1 ofthe 'plate ⁇ 3 is atilaptedA to be locked in an eccentric position with respect to the plate 3.
  • Thej'plate I6 supports a rotarychu'ck plate i6' provided with locking means and adapted. to receive ⁇ the fiange.
  • avertical-column 1,23 havinglits upper end! supported by anY armzlextcndin'g from thet'op endportion 'of the standard '
  • the column 23k has slidably mounted thereon. a sleeve 25 provided with a locking handle" 26,.the said sleeve carrying a fork' ZIadapted to-sustain'the work 'to be ground.
  • the grinding wheelA 34 When Vgrindingis being effected, the grinding wheelA 34, ⁇ while being caused to .rotate ⁇ at high speedA underthe drive .of the vmotor -3 l may perform in addition an angulardisplacement ⁇ around the axis of the tube '28, which;isobtained v ⁇ bythe operator actuating. a'handlef. .Owinggto such angular'displacement'the .grinding Wheelmay be completely' disengaged' from' the portion of 1 the work which-r ⁇ is underfgrinding and, moreovergfthe grindingvoperation may befstarted by progressiveliT yengaging'the periphery of the grinding wheel with a resulting highly smooth working contact.
  • the Amotor 3 ⁇ I is connected through a flexible cable 31 to a switchboard (not shown) secured totheinachine; the said switchboard controlling 3 in addition the motor I adapted to impart rotary movement to the plate 3.
  • the shaft 54 is screw threaded and hasV formed therein a longitudinal groove 55 having'engaged therein a guidekey 5lV rigid with the bracket 30.
  • the said sleeve has, Y mounted thereon a pinion G adapted to cooperate u with a worm formed on a shaft Eil;journalledA transversely in the bracket and operated by means of a knob 52 provided with a movable dial furnished with resilient arresting means, the said dial co-operating with a fixed graduated scale providedlon the mechanism.
  • a spring 63 having one of its ends attached to a ring 64 fixed to the carriage 'IZ (see more particularly Fig.v5) has its oppositeend engaged by a bar ,65 terminating in a pawl 65;
  • the said pawl is adapted to engage one of a series of corresponding teeth offa rack S'I fixed to a laterally protruding portion of the bracket 36 (Fig. 6), the function ofv the spring and rack assembly being to press the shaft 54 resilientlyA against the abutment plate 55 on the carriage.
  • the bar 55 is provided with a clevis 68, the clevis pin AGil being adapted to cooperate with a hook 'I0 formed on the end of a control lever "Il, pivotally mounted at 'I2 onto the carriagejlz.
  • R 11' When the lever 'II is shifted from' left to right, the 'hook I0 is brought into engagement with the clevispin 69 and retraots the pawl' outof engagement with the teeth of the rack 36'?.
  • Stops 'I3 are adapted toV limit the stroke of the Vlever 'EI in'either direction of moi/ement.A ⁇ On the other hand, when the 'saidlever is shifted from right togleft-whi'ch is effective in the pawl '56 engaging one ⁇ of the teeth of the rack 6l, in accordance with the diameter of the stock to be ground--V the rack teeth, so 'thatthe pawl' Vwill ⁇ be held correctly by the teeth. 'p
  • Thescrews 74 bywhich the abutment plate 55 is fixed in place are provided with conical heads which act as stops adapted to ⁇ v limit the magnitude of pendulous movement imparted to vthe grinding ⁇ mechanism bythe actionof the operator when the latter actuates the handle V3S for this purpose.
  • Y rIfhe above described vfeed mechanism Yfor the grinding wheel makes it possibleY to' eiect the adjustment Vof the position of the'grinding wheel 34v with respect to the axis of the stockV to be ground, withaccuracy.
  • the aforesaid mechanism further enables the said grinding wheel to be quickly retracted from its operative position, which result is vachieved through the Aactuation of the lever 1I, which, by disengaging the pawl 56 from the rackr'his effectivey in shutting out the action of'the resilient locking device for lthe grinding mechanism, so that the sleeveV 2,9V by which theV latter is suspended on the ycarriage is applies a manual' pull on the knob d8.V f
  • a rod til pivotedto they housing 1B and subjected to the action of a spring y8l tends to keep the worm 'i5 in constant mesh with the Dinion 5i).
  • a fine adjustment' of the feed of the said carriage may be obtained in the course of the grinding operation, which israchieved in operating the handle 49,while, ⁇ on'the'other hand, the said carriage may be fed at a greater speed when it is required ⁇ to vchange over from 'one crank pin "to another or 'from' one bearing surface to another.
  • centringof the ⁇ *crankshaft greatly ⁇ facilitated-and re'ndered' lmore. expeditious by'theprovision'of 'thepl'ate llwhich is adapted to slidewith respect to the plate '3.
  • a crankshaft grinding machine a base, a horizontal drive plate on the said base for centering, for securing and for driving the crankshaft in its vertical position, a standard secured onto the said base, slides on the said standard, a counterweighted carriage for sliding along the slides, means for operating the vertical displacements of the said carriage along the said slides, horizontal cylindrical guiding means associated with the said carriage and located radially with respeci; to the axis of the stock to be ground, a grinding device, a sleeve associated with the top portion of the grinding device for sliding movement on the said guiding means and for enabling the said grinding device to rock around the said guiding means, a grinding Wheel shaft journalled in the said grinding device, an electric motor secured beneath the said grinding device, a belt transmission for connecting the said motor to the said grinding wheel shaft, means for adjusting the radial distance between the grinding device and the axis of the stock to be ground, resilient means for maintaining the said grinding device in its operative position, means for rendering the said resilient means inoperative,
  • a base In a crankshaft grinding machine, a base, a horizontal driveA plate on the said base for centering,.iorisecuring and 'for-driving the crankshaft in its vertical ,position-aV standard secured 'onto the said base, slides on the said standard, a counterweighted carriage sliding along the said slides, means for operating the vertical displacements of the said carriage along the said slides, horizontal cylindrical guiding means associated With the said carriage and located radially with respect to the axis of the stock to be ground, a grinding device suspended for rocking and for sliding movement on the said guiding means, a fixed abutment secured tothe said carriage, an adjustable abutment provided on the said grinding device for cooperation with the said fixed abutment, a tension spring having one of its ends hooked to the said carriage, a pawl carrying member hooked to the other end of the said spring, a rack integral imparting manually a limited rocking movement to the said grinding device.
  • a crankshaft grindingI machine a base, a horizontal drive plate on the said base for centering, for securing and for driving the crankshaft in its vertical position, a standard secured onto the said base, slides on the said standard, a counterweighted carriage for sliding along the said slides, means for operating the vertical displacements of the said carriage along the said slides, horizontal cylindrical guiding means associated with the said carriage and located radially with respect to the axis of the stock to be ground, a grinding device suspended for rocking and for sliding movement on the said guiding means, a fixed abutment secured to the said carriage, a screw threaded shaft slidably mounted in the said grinding device for co-operation with the said fixed abutment, a tapped sleeve engaged upon the said screw threaded shaft and having both of its ends abutted in the said grinding device, a pinion secured around the said tapped sleeve, a worm journalled in the said grinding device for driving the said pinion, a knurled
  • a crankshaft grinding machine a base, a horizontal drive plate on the said base for fixing and driving the vertically positioned crankshaft, a standard secured to the said base, slides associated with said standard, a counterweighted carriage for sliding along the said slides, a horizontal cylindrical guide associated with the said carriage and arranged radially with respect to the axis of the stock to be ground, a grinding device suspended for rocking With respect to and for sliding along the said guide, means for adjusting the radial distance between the said grinding device and the axis of the stock to be ground, resilient means for maintaining the said grinding device in the operative position, means for rendering the said resilient means inoperative and for causing the said grinding device to slide along the said guide, a rack provided along the slides of the said standard, a shaft supported in the said carriage, a pinion secured onto the said shaft for co-operating with the teeth of the said rack, an operating crank associated With the said shaft, a second pinion secured onto the said shaft, a rocking housing pivoted to the said carriage, a
  • a base In a crankshaft grinding machine, a base, a horizontal rotatable plate on the said base, a diametrally extending groove in the said plate, a support associated with the said plate for sliding ground, a carriage slidable on the said slides, a counterweight for balancing the said carriage, linking means for connecting the said carriage to the said counterweight, means associated with the said carriage for operating the vertical displacements thereof along the said slides, a grinding device mounted for rocking motion on the said carriage and means for shifting thesaid grinding device radially with respect to the axis of the work 10 to be ground.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
US694883A 1945-09-29 1946-09-05 Crankshaft grinding machine Expired - Lifetime US2424109A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE460394A BE460394A (fr) 1945-09-29 1945-09-29 Machine à rectifier les vilebrequins

Publications (1)

Publication Number Publication Date
US2424109A true US2424109A (en) 1947-07-15

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
US694883A Expired - Lifetime US2424109A (en) 1945-09-29 1946-09-05 Crankshaft grinding machine

Country Status (4)

Country Link
US (1) US2424109A (fr)
BE (2) BE460394A (fr)
DE (1) DE807068C (fr)
GB (1) GB622833A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2721425A (en) * 1952-02-04 1955-10-25 Edward Benton Wilkey Valve cage grinder
CN112658838A (zh) * 2020-12-25 2021-04-16 扬州大学 一种发动机曲轴数控磨床

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT653376A (fr) * 1960-07-27
JPS55169346U (fr) * 1979-05-25 1980-12-05
CN102335845B (zh) * 2010-07-22 2013-04-17 中国有色（沈阳）冶金机械有限公司 一种磨床曲轴加工配重装置
CN102275116B (zh) * 2011-09-15 2013-04-10 杭州旗锐工具有限公司 整体导板槽沟精磨装置
CN106181592A (zh) * 2016-08-25 2016-12-07 上海精智实业有限公司 一种旋锻模具加工方法及加工装置
CN106425711A (zh) * 2016-09-12 2017-02-22 昆明理工大学 一种小型内圆加工的磨台装置
CN108127541B (zh) * 2018-01-07 2019-10-25 青岛淄柴博洋柴油机股份有限公司 一种船用柴油机曲轴内r抛光工具
CN110900396B (zh) * 2019-10-28 2021-07-20 东风格特拉克汽车变速箱有限公司 一种新型抛光机砂带进给机构
CN112975731B (zh) * 2021-03-08 2021-12-03 平湖市金兔实业有限公司 一种高效率曲轴箱中曲轴孔珩磨的定位装置及其工作方法
CN114248189A (zh) * 2022-03-02 2022-03-29 南通龙纳模具有限公司 一种举重金属杆加工用抛光机床

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2721425A (en) * 1952-02-04 1955-10-25 Edward Benton Wilkey Valve cage grinder
CN112658838A (zh) * 2020-12-25 2021-04-16 扬州大学 一种发动机曲轴数控磨床

Also Published As

Publication number Publication date
BE460394A (fr) 1945-10-31
DE807068C (de) 1951-06-25
BE466400A (fr) 1946-08-31
GB622833A (en) 1949-05-09

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