US1498660A - Work-holding mechanism - Google Patents

Description

@une 24, 1924-. 1,498,660

' M. L.. JEFFREY WORK HOLDING MECHANI SM Filed Dec. 29 1919 2 Sheets-Sheet 2 INVENTOR.

AT TURNEYS Patented .lune Z4, 1924. i

UNITED STATES PTE `FFCE.

MAX L. JEFFREY, OF CLEVELAND, OHIO, ASSIG-NOR TO THE COLUMBIA A.XLE CO1VI- PANY, OF CLEVELAND, OHIO, .A CORPORATION OF OHIOu To all whom t may concern.'

Be it known that I, MAX L. JEFFREY, a citizen of the United States, and a resident of Cleveland, county of Cuyahoga, and State of Ohio, have invented a new and use ful Improvement in iWork-Holding Mechanism, of which the following is a speciiication, the principle of the inventionl being herein explained and the best mode in which I have contemplated applying that principle, so as to distinguish it from other inventions.

The present invention, relating to mechanism for holding axles, is directed to an improved mechanism for receiving, centering and properly positioning an axle or similar article for operation upon by a multiple spindle drill, or other machine. The ordinary practice at present in handling axles in this way is to mount the axle in a suitable stationary jig or template in such position as to bring the part to be operated upon in line with the tool, but this is a slow and cumbersome way of handling these axles which are extremely heavy and bulky, and the present invention is a considerable improvement thereover by reason of the ease of manipulation and the accuracy of the adjustment. To the accomplishment of the foregoing and related ends, said invention, then, consists of the means hereinafter fully described and particularly pointed out in the claim.

The annexed drawing and the following description set forth in detail certain mechanism embodying the invention, such disclosed means constituting, however, but one of various mechanical forms in which the principle of the invention may be used.

In said annexed drawings Fig. 1 is a plan view of my improved mechanism; Fig. 2 is a side elevation of the same partially in section; Fig. 3 is a transverse section on-the line 33, Fig. 1; and Fig. 1 is an elevation of the right hand end of the apparatus shown in'Fig. 2, the base being shown in section.

The present device is particularly designed for holding front axles while the same are being drilled at the spring pads beneath a multiple head multiple spindle drilling machine, that is, a machine having two or moreA spaced heads, each of which contains a series of'suitably arranged drills.

The present mechanism consists of a base WORK-HOLDING IVIECHANISM. I i M y j 1 Application led December 29, 1919. Serial No. 348,155.

1 carrying transversely extending parallel guides 2, upon which is movably mounted a table 3. The table is provided with a series of rolls 11 mounted upon and engaging the guides 2,v and permitting the table to be moved transversely of the base 1. The actuating means for so moving the table are shown in the form of a handle 5, which is pivoted to the base and connected by means of a link 6 to the front side of the table 3.

Mounted upon the table 3 are two pairs of opposed removable jaw members 8. Each pair of jaw members 8 is slidably mounted in the ways formed in bed plates 9 which are mounted on the table 3 and are movable longitudinally thereof only. These opposed jaw members 8 are operated simultaneously toward and away from each other by means of an actuating member which is provided with opposed threaded portions 11 and 12 and operated by means of a hand wheel 13, mounted at the forward side of the base. The jaws may of vcourse be formed to receive either the axle 14, which is in the usual form, or whatever other article it may be desired to operate on, and they are so constructed to clamp and engage the two opposite sides of this member.

At either end of the table 3 is mounted a slidable plate 15 provided with two upstanding brackets 16 and 17, which are adjustable and spaced apart suiiiciently to Vreceive the wheel bearing spindle 18 of the axle 14. The collar 19 on this spindle, against which the wheel is mounted engages against the front faces of the brackets 16 and 17, and this engagement between the collar 19 and the brackets 16 and 17 serves to position the axle in the proper predetermined position longitudinally of the table. The two members 15 are slidably mounted for movement toward and away from each other and may be simultaneously and similarly operated by means of a longitudinally extending actuating shaft 21 bearing oppositely threaded portions 22 and 23, and operable from either end by either one of the hand wheels 24. In operation the brackets 16 and 17 are iirst positioned to receive the axle to be operated upon, that is, they are adjusted to be engaged by the collars on the wheel spindles of the axle when the latter is set between the brackets. After the axlehas thus been set into the brackets, the hand wheels 13 are operated to cause the jaws 8 to engage the axle and centrally position it with respect to the table. rlhe axle is then in the predetermined position to be operated upon by the drills, and, if desired, templates 26 may be laid across the upper surfaces of the axle at the points where it is to be drilled, these templates being provided with holes 27 to guide the drills, which are then brought down and operated to drill the holes for the spring pads in the axle. The templates are positioned b-y plates 28 mounted on bolts 29 on bosses 30 on the table 9.

It has been found that the present mechanism for handling axles is very much more convenient and quicker than are the sta'- tionary jigs yand templates which have been used in the past, and also the present mechanism lightens the work of the operators to a 'marked extent.

Other modes of applying the principle of my invention may be employed instead of the one explained, change being made as regards the mechanism herein disclosed,

1,4eaeeo provided the means stated by the following claim or the equivalent of such stated means be employed.

, I therefore particularly point out and distinctly claim as my invention 'z- In mechanism for holding and centering automobile axles, the combination of a carriage mounted for transverse bodily movement, two spaced pairs of axle engaging jaws mounted on said carriage, each of said jaws upon operation being adapted to engage and bring said axle into a predetermined eentered position, two pairs of other jaws mounted at the ends of said carriage, said last named jaws upon operation being adapted to engage the end portions of said axle and position it in a predetermined 1ongitudinal position, a fixed drill template carried by said carriage, and means for adjusting the relative position of all of said jaws with respect to said template.

Signed by me, this 22 dayv of December,

MAX L. JEFFREY.

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