US2633764A - Work holder - Google Patents

Description

W. RUSE R WORK HOLDER April 7, 1953 Filed Aug. 17, 1946 m fimanshawm Patented Apr. 7, 1953 r UNITED STATES PATENT OFF-ICE worm HOLDER William-Basel", Round Lake, Minn. Ap lication August 17, isiaseriial Ne. 691,220

(01-. WW-t3) 2 Q1ifiiz This invention relates to mac ne tools, and

part eiiiariy'to Work holders for drill presses and the like. I

A principal object of this invention is to street certain improvements in drill presses and the like to the end of afiording a more flexible arra gerhe t of arts and thereby increasing the irtility of the machine over that of prior con structio'n's. The specific objects of this invention include the provision of an improved work holder that may readily becl'arnped in a desired position on a supporting table or overhanging the edge of th table, "the arrangement of a vise on the work holder which can be rotated on a longitudinal axis and which has detachable vise aw faces that will not drop out when the vise is turned, and a novel manner of coupling the supporting column of the drill head to the base of the press.

A further object is to rovide a drill press or the like of improved, economical-design having advantageous features which render the machine more niversally adapted. to perform its intended function's.

Various other objects, advantages and features or the invention will be apparent from the follow i-ng' speeifieatich when taken ill. connection with the accom anying drawings wherein a certain preferred embodiment is set forth for purposes of illustration.

the drawings wherein like reference numer alsrefe'r to like parts throughout: 7 Fig. 1 is a View showing side elevation a drill "press of a basically conventional type having iii-- corporates the-rein certain improvements in accordance with and embodying the princi les of my invention;

Fig. 2 is a plan View taken on the line 2-2 in Fig. -1 and showing the work holder in greater detail; 4

Fig; is a detail View in verticalsection of an improved base construction for the drill press;'

Fig. 4 is a longitudinal seetlon through the work holder taken along the line 4- 4 in 2;

Fig. 5 is a detail cross seotional View taken on the li'ne S E in Fig. 4'; and p v Fig. his a detail perspective view showing the mounting of the work holder.

A typical drilllpress to which the present inventron may he applied is shown in Fig. 1. A base it supports a vertical column 52 to which is clamped or otherwise secured a drill head M. A pedestal l6 extends up from the base E6 to support the work beneath the driili a, which is carried by a spindle 20 mounted in the drill head the bar 42 and threaded into a it. The Work is fired in a desired position rela= tive to the drill l8 by the novel clamping means which will be described presently, and suitable means such as a handle 22 operating through a rack and inion is provided to lower and raise the spindle '29, which has a splined connection with the driving means therefor.

Inaccordance with the invention, a plate 2%, Fi s. '1 and 2, is secured in a horizontal position on the pedestal 16, this plate having a cutout pertion 26 through which the column 152 passes. holder includes a vise generally designated {35, Figs. 2 and-4, meuhtea oh arranre 32 is bodily movable relative to the plate 24. arms 34 and 86 extend from the name 32 and are supported by the 1a'te '24. The arms 34 and 36 are p'ivotally connected to the frame 32 in such a manner as to permit these arms to swing laterally relative to the frame. Lugs 38 and 4%! on the frame 32 respectively extend over the arms 3 3 and 38 to prevent tippihgof the frame 82 when the frame is moi/ed beyond the edge of the plate 2 4-, as indicated by the broken-line position thereof in Fig. 2, for a purpose which will appear hereinafter; For securing the work holder adjustably in a selected position, a slotted clamping bar i2 is rovided, this bar 42 being adapted to straddle the arms 34 and 36 in any of the contemplates positions in which the work holder may be used. For securing the bar E2 to the plate 24, a bolt 44 is passed through the slot-in tapped opening in the plate 24.

The vise 3%] is mounted on pivots 46, Fig. v4, carried by the frame 32, and the frame 32 is cut away,as shown in Fig.6, to provide clearance so that the vise 30 may be swung on a longitudinal axis from an upright to a perpendicular position, the upright position of the vise being indiwhich is a art of the frame 32 so that it is securely held upright.

The 'ViseSU om rises a fixe jaw 52 and a movable jaw 54, Figs. zaml 4. The jaw 54 is slidabl'y mounted on the body of the rise 30, and the usual hand screw 56 is threaded through atapped opening in the fixed mrtionor the vise, 30', theiehd of this screw being journal-ea in'the 'mtvabl'e jaw '58.

By turning a handle 58 on the projecting end of the screw 56, the movable jaw 54 may be advanced toward or retracted from the fixed jaw 52. The work W, Fig. 2, is clamped between jaw faces 60 and 62 respectively provided on the vise jaws 52 and 54. The jaw faces 60 and 62 are supported by the vise body and are detachably connected to the respective vise jaws 52 and 54 by studs 64, Figs. 4 and 5, for a purpose which will be explained presently.

Normally the vise 30 is positioned in a selected position above the plate 24 as shown in full lines in Fig. 2, and the work W and drill I6, F 1, are properly aligned with respect to each other. In event it is desired to drill a hole entirely through the work, this may conveniently be done by moving the vise supporting frame 32 into a position such as that indicated by the broken line in Fig. 2 so that it overhangs the plate 24. To do this, the bolt 44 is loosened so that the frame 32 can be swung over the edge of the plate 24, and the arms 34 and 3B and clamping bar 42 then are repositioned accordingly, following which the bolt 44 is again tightened to secure the frame 32 in its new position. The pin 48, Figs. 2 and 6, then is removed and the vise 30 is swung on its pivots to a perpendicular position, as indicated by the broken lines of Fig. 2. The vise 36 is so mounted on the pivots 48 that it swings until the body of the vise is arrested by the bar 50, Figs. 5 and 6, which serves as a stop after the pin 48 is withdrawn. The studs 64, Fig. 4, prevent the jaw faces as and 52 from slipping out of the vise when it is turned sideways, and this maybe supplemented by providing the jaw faces with tail portions, such as 65 in the case of the jaw facetZ, which extend into the working channel of the movable jaw 54. With the vise 3!) turned sideways, as shown in broken lines in Fig. 2, the drill can be passed entirely through the work W without danger of encountering obstructions beneath the work.

In drill presses of the type contemplated for use in conjunction with the present invention, it frequently is found convenient to journal the supporting column I2, Fig. 1, in the base I ii of the drill press so that the column I2 and drill head I4 can be swung as a unit to reposition the drill. With this arrangement, it may be desirable to provide means which will enable the column I2 to swing freely and yet prevent it from being lifted by the upward axial thrust which occurs when the drill I8 is brought down into engagement with the work. In other instances it may be desirable to lock the column I2 against any movement whatsoever. A construction which provides both of the foregoing features is illustrated in Fig, 3.

As shown in Fig. 3, a bracket I secured to the base II] has a horizontal arm I2 which embraces the column I2. Two collars I4 and I5 are arranged on the column I2 intermediate the arm I2 and base II). The collar I4 has a somewhat loose fit on the column I2. A cap screw 18 is passed freely through the bracket III and is threaded into a tapped opening in the collar I4. When it is desired to clamp the column I2 against any swinging movement thereof, the screw I8 is tightened to bring the diametrically opposed portion of the collar I4 into snug engagement with the column I2. To prevent upward movement of the column I2 due to the axial thrust which occurs when the drill is brought into engagement with the work, the collar I6 is secured to the column I2 by suitable means such as a set screw 80. When the collar I4 is loose, the column I2 can be swung to bring the drill head I4 into a desired .4 position, the collar I6 rotating with the column I2 relative to the arm I2 and collar I4. Thus, the collar I4 can be left loose where the position of the drill head I4 is to be changed frequently, and the collar I6 will function to prevent any vertical displacement of the column l2.

The advantages derived from the various improvements in drill presses and the like which have been disclosed herein are believed to be obvious from the foregoing explanation. These improvements render the drill press adaptable to a wider variety of jobs than has been possible heretofore, due to the great flexibility in the arrangement of the parts. The manner in which the Work holder is clamped to the supporting plate 24 facilitates positioning the work holder practically anywhere on this plate or in an outboard position overhanging the edge of it. The vise 30 can be swung away from its upright position when required, as in the case where the drill must completely penetrate the work. The jaw faces 60 and I52 are detachable and new jaw faces can readily be substituted where the character of the work requires this. There is no danger of the jaw faces dropping out when the vise is turned and the work is being drilled while the vise is in its perpendicular position. The novel base construction illustrated in Fig. 3 enable the column I2 to be clamped firmly in a particular position or swung as desired.

It is obvious that various changes may be made in the specific embodiment set forth for purposes of illustration without departing from the spirit of the invention. The invention i accordingly not to be limited to the specific embodiment shown and described, but only as indicated in the following claims.

The invention is hereby claimed as follows:

1. A work holder for a drill press or the like, and comprising a plate adapted to be supported in substantially horizontal position beneath a drill head, a U-shaped frame bodily movable over the surface of said plate to various preselected positions, the legs of said U-shaped frame having spaced vertical end flanges carrying aligned horizontal pivots, a vise pivotally carried by said pivots with an edge portion thereof resting on the closed end of said U-shaped frame when in horizontal position, removable support mean associated with said vertical end flanges at points remote from the closed end of said U-shaped frame for supporting the opposite edge of said vise when in horizontal position, a pair of arms pivotally connected to said frame and extending along the surface of said plate, means including a cross bar engageable With both said arms for securing the assembly in fixed preselected position relative to said plate, said frame being shiftable to a position overhanging an edge of said plate in which position said support means may be removed permitting the vise to swing through ninety degrees and to abut against the adjacent inner surface of the closed end of said U-shaped frame as a support.

2. A work holder as claimed in claim 1, wherein lugs project from opposite ends of said frame in surface contact with adjacent ends of said arms which are pivoted to said lugs.

WILLIAM RUSER.

(References on following page) 8 REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date Gordon May 10, 1887 Wheeler July 2, 1907 Drennon May 3, 1927 Davis Jan. 8, 1929 Oberly et a1 Feb. 10, 1931 Albertson Dec. 22, 1931 Sorensen May 31, 1932 Henry Jan. 25, 1938 Hagopian Feb. 21', 1939 Number Number

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