US2298005A - Grinder aligner - Google Patents

Description

Oct. 6,1942.

E. A. FUGLIE GRINDER ALIGNER 2 Sheets-She et 2 Filed June 29, 1942 m n w m Patented Oct. 6, I942 ire-o srers ATENT orrice 2 Claims.

This invention appertains to new and useful improvements in aligning means for grinders and more particularly to grinders of the crankshaft type, this invention being an improvement on pending application Serial No. 292,948, filed August 31, 1939, for Crankshaft grinders, in which I am a co-applicant.

In grinding crankshafts with the grinder disclosed in the aforementioned application, on certain occasions the grinder will grind a bevel which must be removed by skillful but conjectural adjustment of the grinder.

In carrying out the present invention, the principal object thereof is to provide means whereby precise adjustment of the grinder can be exeouted to take care of any bevels that may have been ground into the shaft and which must be removed.

Other objects and advantages of the invention will become apparent to the reader of the following specification.

In the drawings:

Figure 1 represents a vertical sectional view through an engine block and crankshaft showing the invention installed.

Figure 2 is a vertical sectional view taken substantially' on the line 22 of Figure 1.

Figure 3 is a horizontal sectional view taken substantially on the line 33 of Figure 2.

Figure 4 is a perspective view of the spring clip.

Figure 5 is a perspective view of the U-shaped hanger.

Figure 6 is a fragmentary side elevational view, partly in section, of the slide rod.

Figure 7 is a perspective view of the adjusting block.

Referring to the drawings wherein like numerals designate like parts, it can be seen in Figure 1, that numeral 5 represents the crankcase upper shell section of the cylinder block 6. Numeral I denotes the crankshaft which is to be ground. Numeral 8 represents a grinder such as is illustrated in aforementioned pending application Serial No. 292,948. This type of grinder is of the type illustrated in Patent No. 2,130,083 issued September 13, 1938, the same having the handle portion 9 through which the grinder shaft II] extends and the motor housing II. The control means I2 for the grinder assembly 8 is not to be considered part of the present invention.

The present invention consists in the provision of a block I3 which has an opening I4 therein through which the rod I2a of the control means nally through the block I3 to bite against the rod I2a and thus the guide rod I6 which depends from the block I3 is carried by the control rod I2a.

As can be seen in Figure 1, the flange II of the shell 5 has openings therein which, of course, match the openings of the usual lower section of the crankcase (not shown) and from this flange II depends the hanger I8, this hanger being of inverted U-shape and secured to the said flange by bolts I9.

Leg members 20 having a plurality of longitudinally spaced openings 2I in the upper end portions thereof are suspended from the leg portions of the hanger I8. Each leg 20 has a bolt 22 disposed through one of its openings and also through an opening in the lower portion of the corresponding leg of the hanger I8. These bolts 22 do not form pivots for the legs 20, but adjusting joints whereby the legs 20 can be set at the proper angle with respect to the hanger I8.

The lower ends of the legs 26 are connected together by the guide pin 23 which extends through a bore in the slide block 24, this bore being denotedby numeral 25.

The block 24 is also provided with a threaded bore 26 through which the screw shaft 2! is threadedly disposed, the shaft having smooth end portions for disposition through smooth openings in the legs 20.

Extending laterally from the block 24 is the wing structure 28, bifurcated to define the crotch 29 and the furcations 30-30. The crotch 29 receives the slide rod I6, and the furcations 30 are notched as at 3| to receive the inwardly bent end portions of the spring clip 32', this clip serving to prevent displacement of the slide rod I6 from the block 24.

Obviously, whenever it is observed that the grinder 8 has ground a taper in the shaft I, the screw shaft 2! can be rotated by the knurled knob 32 with the result that the block 24 is slid along the guide pin 23 so as to tilt the grinding head 8 just sufficiently to take out the taper. It will also be observed that the slide block 24 serves to guide the slide rod I6 at all times so that the grinding assembly is operating in substantially perfect alignment.

As can be seen in Figure 5, the top portion of the hanger I8 has slots 33 therein so that the hanger can be properly adjusted for supporting the block 24 and associated details accurately.

While the foregoing specification sets forth the invention in specific terms, it is to be understood I2 extends. A set screw I5 is disposed longitudithat numerous changes in the shape, size and materials may be resorted to without departing from the spirit and scope of the invention as claimed hereinafter.

Having described the claimed as new is:

1. In combination with a vertically movable grinder, a hanger assembly, a slide rod carried by the vertically movable grinder, and a horizontally movable carriage on the hanger through which the slide rod is vertically movable, said carriage consisting of a horizontally feedable block having a crotch in one side thereof through which the slide rod is movable and closure means for the crotch, said closure means consisting of a spring clip adapted to bridge the said crotch.

invention, what is 2. In combination with a vertically movable grinder, a hanger assembly, a slide rod carried by the vertically movable grinder, and a horizontally movable carriage on the hanger through which the slide rod is vertically movable, said carriage consisting of a horizontally feedable block having a crotch in one side thereof through which the slide rod is movable and closure means for the crotch, said closure means consisting of a spring clip adapted to bridge the said crotch, said block having notches in side portions there- 'of adjacent one end, said clip having inturned end portions for snap engagement into the said notches.

ELMER A. FUGLIE.

Images