US735469A - Gage for punching-machines. - Google Patents

Description

- No. 735,469. PATENTBD AUG. 4, 1903.

T. GONLEY.

GAGE 'FOR PUN CHIN G MACHINES.

APPLICATION FILED D110. 0, 1902.

110 MODEL. I

I l l r A TTOHNEYS after described and claimed.

UNITED STATES Patented August 4, 1903.

THOMAS OONLEY, OF PITTSBURG, PENNSYLVANIA.

GAGE FOR' PUNCHlNG-MACHINES.

SPECIFICATION forming part of Letters Patent No. 735,469, dated August 4, 1903.

Application filed December 6 1902. Serial No. 134,148. (No model.)

To all whom it flung concern:

Be it knowmthat I, THOMAS OONL Y, a citizen of the United States,residin'g at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Gages for Punching- Machines; and I do hereby declare the following to be afull, clear, and exact description of the inventiomsuch as will enable others skilled in the art to which it appertains to make and use the same.

This invention has relation to punching presses, and particularly to machines of the type shown and described in Letters Patent No. 701, 544,wherein adjustable guides or stops are employed to limit the movement of the carriage upon which the work is carried and fed to the punch, drill, or other tool, so that it will be punched or bored at exact predetermined intervals either the sameor different distances apart.

The object of the present invention is to provide for a more accurate adjustment of the stops and to prevent the same when once adjusted from being accidentally displaced.

The invention consists in the novel construction and combination of parts herein- In the drawings, Figure 1 is a side elevation of a machine embodying my invention. Fig. 2 is a plan view.

view of part of the machine. Fig. 4 is a perspective view of a portion of one of the guide bars, and Fig. 5 is a perspective view of one of the stops. I

A designates a power-punch, drill-press, or other like apparatus, and B a tablesupporting the rails or tracks C 0, upon whichthe The carriage is provided M with mechanism for grasping andholding the,

carriage D travels.

work in position while being fed and operated upon. 7

E designates a stop-guide located at one side of the table B outside the rail 0, and F F are stop-blocks mounted on said guide. I11

Fig. 3 is a vertical sectionall simply by clamping-screws abutting against the side of the rail are liable to bedisplaced by the impact of the rod projecting from the work-carriage. cult to exactly adjust the blocks by measuring the intervals. I have therefore substituted for the plain rails and forked orslotted blocks of the patent the flanged channel beam or barE, having angular diagonally-arranged grooves g g on its outer surface and the stopblocks gg, having diagonal ribs g g*, which enter said grooves. The grooves g g are equidistant apart and graduated to any desired scalesay one-quarter of an inch or even less. Each stop-block consists of a solid casting of substantially rectangular form with the angular diagonally-arranged parallel ribs 9 on its inner face. The block when set in position is secured rigidly by abolt h, which passes through a hole in the middle of the block, the head of said bolt resting within the channeled portion of the beam. A nuti is fitted to the outer end of thebolt and by tightening ;up the nut the block is drawn closely against the flanges of the channeled beam, while the head of the bolt is drawn tightly against the inner surfaces of the flanges. The ribs on the blocks fitting within the grooves g g, the blocks when once tightened up are prevented from being displaced andwill therefore remainin the exact posi- It has also been found diffij ustments not obtainable by simply using the grooves as the measure of adjustment. Thus,

supposing the grooves to be a quarter of an inch apart no finer adjustment than a quarter of an inch could be given to the stop-block by simply moving the latter horizontally between notches or grooves; but by making the grooves g inclined or diagonal and arranging the ribs on the stop-blocksin corresponding positions the raising ofthe block causes its ribs The block is adjusted vertically by means of a screw M, inserted in a threaded socket m in the bottom of the block. The head of the screw M rests upon the projecting flange n of the table, and the pressure against the latter when the screw is turned causes the block to rise and move lengthwise of the rails any required distance. Very minute and delicate adjustments may therefore be obtained.

In using the machine a required number of blocks are arranged in position and at suitable intervals apart. The metal piece to be punched is mounted on the carriage D. After the first hole is punched the carriage is moved forward until the projecting end of the rod I comes in contact with the first stopblock. The second hole is then punched and the rod I drawn back out of contact with the stop-block and the carriage moved forward until the rod I contacts with another block, and so on until all the holes have been punched. The rod I is mounted in suitable bearings under the body of the carriage, a coiled spring being arranged between a pin 0 on the rod and one of the bearings, so as to force one end of the rod beyond the side of the carriage and cause it to contact with the stop-blocks. After contact with each block the rod I is retracted far enough to pass the block and is then released soas to contact with the next. In order to insure contact with the blocks successively when placed close together, I bevel the inner side of the blocks at the upper end, as shown at T in Fig. 4, so that the rod will be easily and gradually projected outward after being retracted and its contact with the several blocks insured. In some cases I may use a rod arranged to move vertically instead of horizontally, in which case the block will be beveled on its upper surface, as shown att in Fig. 5.

For the purpose of regulating or spacing the stop-blocks the upper surface of the guide-rail E is provided with a graduated scale, as shown at V.

'To provide for the insertion and removal of the boltsh, which hold the stop-blocks in position, I form the back of the guide-beam E with holes I, located at suitably convenient intervals, thus allowing the bolts to be removed when required without having to slide them lengthwise of the guide-beam and out through the ends thereof.

Having described my invention, what I claim, and desire to secure by Letters Patent, is-

1. The combination with a press and a movable work-carriage of a guide rail or way notched or grooved on its face, and a series of stop-blocks independently adjustable on said guide rail or way, and having ribs on its inner surface fitting said grooves.

2. The combination with a press and a carriage for moving metal into different positions with relation to the press, of stop-blocks having diagonal ribs on their inner faces, and a guide-rail upon which said stop-blocks are mounted, having diagonal grooves with which the ribs of the stop-blocks engage.

3. The combination with the guide-rail E, having diagonal grooves g, g, on its outer face, of the stop-blocks, g, having correspondingly diagonal ribs, and the bolts, h for securing the blocks in position.

4. The combination of the guide-rail, E, having diagonal grooves on its face of the vertically-adjustable stop-blocks F,F, and the adjusting-screws M.

In testimony whereof I affix my signature in presence of two witnesses.

THOMAS GONLEY.

Witnesses:

THOS. A. CoNNoLLY, A. A. CoNNoLLY.

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