US1241964A - Multiple-cylinder-grinding apparatus. - Google Patents

Description

C. F. GROW & J. M. COURTNEY.

lMULTIPLE CYLINDER GRINDING APPARATUS. APPLICATION FILED MAR. 30. 191s.

pgina@ @FFME GYBUS F. GROW, OF ALHAMBRA, AND JAMES M. COURTNEY, OF LOS ANGELES,

CALIFORNIA.

MULTIPLE-CYLINDER-GRINIDING; APPARATUS.

Speci-eation of Letters Patent.

Patented Oct. 2, 1917.

Application led :March 30, 1916. ySerial No. 87,686.

To all whom t may concern:

Be it known that we, CYRUs F. Gnowand Jamas M. COURTNEY, citizens of the United States, residing at Alhambra and LoserAngeles, respectively, in the county of Los Angeles and State of California, have invented new and useful Improvements in Multiple- Cylinder-Grinding Apparatus, of which the following is a specification.

The invention is an improved automatic machine for grinding the inner surfaces of a plurality of hollow cylinders.

The machine is particularly adapted to grind automatically in one operation, the inner surfaces of the cylinders of a multiple cylinder gas engine.

A desirable embodiment of the invention is illustrated in the accompanying drawings in which:

Figure 1 is a side elevation of the machine.

Fig. 2 is a front elevation thereof.

Fig. 3 is a horizontal sectional view of a portion of the machine taken on line :v3- m3 of Fig. 2.

Fig. 4 is a vertical sectional view of a portion of the machine taken on line :v4- m4 of Fig. 1. n

Fig. 5 is a horizontal sectional view of a portion of the machine taken on line w5-5 of Fig. 2.

Fig. 6 is an enlarged vertical central section of the crank disk oscillating the work supporting table in a horizontal plane.

Fig. 7 1s a sectlonal detail view of the n gear operating the crank disk.

with pmlons Fig. 8 is a sectional detail view of the gear for vertically reciprocating the work sup orting table.

Fig. 9 is a diagrammatic viewillustrating the grinding operation of one of the grinders of the machine in grinding the inner surface of a hollow cylinder.

The machine comprises a frame formed with a base 1 and a pair of standards 2 located respectively at the respective ends of the base. Guides 4 are formed on the front edges of the standards 2, upon which guides are mounted by means of slides 5, a slidable table 6. Said table is mounted upon the upper ends of vertical screws 7, which extend through the base 1 and on which screw pinions 8, which rest upon the base 1. Pmions 9, on shaft" 10, rest above and mesh 8, and pinion 11 on said shaft meshes with pinion 12 on shaft 13 journaled at one end in bearing 14 on the base 1. The other end of the shaft 13 is coupled to the shaft of a motor 15 by means of which motor the table `6 is moved ,up and down on the guides 4 through the medium of said shafts, pinions, and screws. Crank disks 16 are mounted within recesses in the upper surface of table 6, on the upper ends of vertical crank shafts 20, the lower ends of which shafts extend through the base. The disks 16 are provided in their upper surfaces with bolt slots 21 which extend diametrically of the disks. The head ends of crank bolts 22 t in said slots, while the Shanks of said bolts extend upwardly through bushings 23 in a movable table member 25 which rests 30 are conined between base bearings 31 and brackets 32 so that the shafts 20 may move longitudinally through the gears as the table 6 is raised and lowered. The movable table member 25 is provided with longitudinal bolt slots 35 to receive bolts 36, which are adapted toextend through cleats 37 for engaging the end flanges 38 of the 'cylinders 39, and nuts 40 on the ends of the bolts engage thecleats so that the cleats may grip said flanges and hold the cylinders rigidly in position on the movable table member 25.

Y On guides 45 at the upper front portion of the standards 2 is mounted, by

means of slides 46, ahorizontal grinder supporting bar 47. The bar may be moved to any position o n the guides 45 and secured in such position by bolts 48 which'extend through the rear of the slides 46 and engage the rear face of said guides. Grinder heads 50 are horizontally adjustably mounted on the grinder supporting bar 47 and are held in their properly adjusted position by bolts 51 ttin in a boltl slot 52 in the bar 47 and exten ing through ears 53 on said heads,and nuts 54'which screw on the ends of said bolts against said ears and bind the v2.0 be applied to drive ears against said bars. Journaled in bearings 55 on the heads 50 are the vertical grinder spindles 56 on .the lower endsof which are secured the grinder disks 57, preferably emery wheels, whichy are adapted to engage the inner surface of the engine cylinders 38. Collars 60 and 61, secured to the grinder spindles, engage respectively the upper and lower ends of the bearing 55 and prevent vertical movement of the spindles and grinder disks during the grinding operation of the machine. leys 65 are splined on the upper portion of the spindles 56 around which pulleys extend belts 66 which extend around pulleys 67 secured on drive shaft 68 journaled in bearings 69 at the upper rear portion of the standards 2. A pulley 70 is secured on one end of the shaft 68 t0 which power may the grinder disks 57 through the medium of the shaft 68, pulleys 67, belt 66, pulleys 65, and spindles 56. The position of the grinder disks 57 and the arrangement of the cylinder holding cleats 37 and bolts 35 on the movable table member are such that the grinder disks 57 may engagefand grind the same point of the interior surface of the engine cylinders 38 as the cylinders are rotated, as shown in Fig. 9, by the motion of the table member 25, whereby the interior surface of the cylinders are ground alike and to the same diameter. The diameters of the grinder disks 57 may, ofcourse, be varied with relation to each .other to grind the interior dameters if desirable. Durin the grinding operation the disks 57 may lie rotated in the opposite direction to the direction of rotation of cylinders 38 as indicated by the arrows in Fig. 9 which provides a highly effective and desirable grind' As the grinder disks and the cylinders-are rotated with relation to each other as described, the cylinders are raised and lowered bythe reciprocation of the by tl1 e grinder disks are caused to grind the interior surface of the cylinder progressively from one end to the other.

50 By securing the bolts 22 at different positions in thel disk slots 2l the motion of the movable table member 25 may be varied to grind cylinders of different diameters.

e c aim:

1. grinding machine for grinding a plurality of integral cylinders arranged side by side, comp ising a plurality of grinding elements for (grinding the interior surfaces of .said cylin ers, a table for holding said cylinders while v being ground, and means for moving said table to cause said grinding lements to grind the interior of said cyliners. a

2. A grinding ,machine for grinding' a plurality of integral cylinders arranged side Pulminced by side, comprising a table for holding the cylinders, a plurality of grinding elements for grinding the interior surfaces of said cylinders, means for shifting said table-horizontally, and means formoving said table vertically to cause said grinding elements to grind the interior of said cylinders.

A grinding machine, comprising a grinding element, a table, a movable table member for supporting the work, a crank shaft journaled in said table, a crank element on said shaft engaging said movable table element, means for moving said table and table member'toward the grinding element, and means for rotating said crank shaft and crank to move saidmovable table member to rotate the work, said grinding element being adapted to gr' d the work as it is rotated and reciprocated. v

4. An automatic machine for grinding the interior surface of thev cylinders of a multiple cylinder gas engine, comprising a slidable table,a movable table member mounted on said table, means for securing the cylinders of a multiple gas engine on said movable table member, grinding elements adapted to engage respectively the interior surfaces of said cylinders, means for actuating said grinding element, means for actuating said movable table member to rotate said cylinders with relation t0 said grinding element, and means for moving said table and table member longitudinally with relation to said grinding element.

An automatic machine for grinding the interior surfaces of the cylinders of a multiple cylinder gas engine, comprising a frame, a table slidably mounted on said frame,.a movable table mounted on said slidable table, means for securing the cylinders of a multiple gas engine on said movable table member, a plurality .of heads mounted on said frame, a spindlejournaled in each of said heads, a grinding disk secured on each of said spindles adapted to engage the inner surface of a cylinder of said engine, means for rotating saidspindles and disks to cause said disks to grind the inner surfaces of said cylinders, means for actuating said movable table member to rotate said cylinders with relation to said grinding element, and` means for moving said table and table member longitudinally with relation to said grinding element.

6 An automatic machine for grinding the interior surfaces of the cylinders of a multiple cylinder gas engine, comprising a slid'- able table, a movable table member mounted on said table, means for securing the cylinders of a multiple gas engine on said movable table member, grinding elements adapted to v engage res ectively the interior surfaces of said cylin ers, means -for actuating said grinding elements, a screw journaled in said tab1e,imeans for rotating said screw to move 180 said table, table member and said cylinders longitudinally With relation to said grinding element, a shaft journaled in said table, a crank on said shaft connected to said movable table member, and intermeshing pinions on said screw and crank shaft Whereby said shaft is rotated and said movable table member is actuated to rotate said cylinders with relation to said grinding element. I

7. A grinding machinefor grinding a plurality of integral cylinders arranged side by side, comprising a plurality of grinding elements for grinding the interior 'surfaces of said cylinders, a table for holding said cylinders while being ground, means for moving said table to cause said grinding elements to grind the interior of said cylinders,

and means for adjusting said grinding elements with relation to the interior of said cylinders.

8. A grinding machine for grinding a plurality of integral cylinders arranged side by side, comprising a table for holding the cylinders, a plurality of grinding elements for grinding the interior surfaces of said cylinders, means for shifting said table horizontally, means for moving said table vertically to cause said grinding elements to grind the interior of said cylinders, means for adjusting said grinding elements with relation to the interior of said cylinders, and means for adjusting the shifting movement of said table.

In testimony whereof We have signed our names to this specification.

GROW,

CYRUS F. JAS. M. COURTNEY.

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