US1435418A - Spacing feed mechanism for work in punching, drilling, or like machines - Google Patents

Description

I. PARIS. SPACING FEED MECHANISM FOR WORK IN PUNCHING, DRILLING, 0R LIKE MACHINES.

APPLICATION FILED DEC. I, I920.

Patented Nov. 14, 1922.

8 SHEEIS-SHEEI I.

W m @a w W7 2 3 a I. PARIS.

SPACING FEED MECHANISM FOR WORK IN PUNCHING, DRILLING, 0R LIKE MACHINES.

' APPLICATION FILED 0Ec.1. 1920.

8 SHEETS-SHEET Z.

flame 25% Paris f A iorneyr it Patented Nov. 14, 1922. a

' l aosnrnrna'rs or Nannies, sermon a v 1 srncrne FEED MECHANISM- roa wear: in ronenrne, D BILLING, on VLrKnivrAo rNns.

Application filed. December 1, i920. seriairo. 421,524.;

T 0 011 2 whom it may concern Be itknown that L J osErH PARIS, a citi zen of the Republic of France, and residing at Nantes (Loire ln rieure Department),

, Route de Roche Maurice, inthe Republicof France, engineer have invented certain new and useful Improvements in Spacing Feed Mechanisms for Work in Punching, Drilling, or like Machines of which thefollowing is a specification.

This invention, relates to a, method and an apparatus permitting the rapid centering of structural members and various rolled bars 1119.01 a machine tool employed for instance for drilling or: punching operations, whereby all previous marking of the pieces shall'be obviated. For this purpose the pieces under operation are disposed in such manner as to slide between rollers whose position is closely adjustable with reference; to the axis of the tool, or in other cases such pieces are rigidly secured to structural bars" which are slidalole between saidrolle'rs,v

a line parallel to the edge of the piece,

.termed, marking line, and a series of lines situated at right angles tothe former and spaced according to determined dimensions.

In the process according to thisinven tionaniechanical means are employed whereby the centre line and thesuccessivfe perpeir diciilar lines are caused to pass through the centre of the tool, wither 1t requiring such lines to be marked out in any way.

The bar 1, an angle iron for'instance, is u d y the fo ro ers 2,31 W p ed in pairs, upon the two'platesfi and The shafts of said rollers, tand 5 are'se' cured respectively to. the plates 6iand 17',

while the shafts of the rollers 2 and. 3 are mounted vupon the arms 8 and9 adapted to swing about the shafts and 11 which are carried by the members 12 and 13 secured to the plates 6 and 7, The said arms 8 and .9 are drawn backwardly by the springs 14. and 15 in such manner that the bar 1 irrespectively of the thickness thereof shall always contact the rollers 4. and 5. It results from this disposition that the back edgeof said bar can only move according to, the tangent of these two rollers.- I

The distance between the rollers 4 and 5v and they axis of the tool is adjusted;- once for allby moving theplates 6 and 7 upon the mainframe of the machine, and to permit of-thisadjnstment thevided with oval holes such as 16.-having the a clamping bolts inserted therein. eration is; carried out-in such manner'that the distance (Z between the tangent to, the rollers-and the axis of the tool shall-be equal. to. the distance. between. the, holes, to benforrned andthe back edge of therbar 1. Under these conditions, upon sliding said T bar between the rollers; the centre line of plates. maybe prothe proposed holes will invariably coincide i I 7 bar 1 should not be perfectly straight, no, 7 The accompanyingcdrawing shows by way of example variousconstructional forms of inconvenience will follow ithereiii'om inasmuch as thecustomary. trimmingoflthe bar .7

Will be sufiiolient to permit said bar to be considered as straight upon the, distance bet tween the rollers, which can infactbe made r I v ryrt,

A-inyc possible errors in centering will fall within the limits of the precision required for structural steelwork and thejlike. a v This heingaccomplished, when, it is desired to bringthe centre of a hole upon the axisofthe tool, allthat is necessary is llQfiX with reference to the tool the point onthel I edge of the bar which islocated upon the same cross sectionas the said centre of the To this end a template, 1? is secured. wer

bar 1 f01 instance by small clamps,v

and a pointer 18 fis disposed upon 7 the ma- 1 chine frame in line with thetool. s

The template 17 carries a serieslof lines corresponding to thedi-stance between centres of the holes, the said linesbeing brought successively opposite the pointer. The. bar

is drawn along by rotatingoneof the rollers mounted. onafixed'fshaft 5, rorinsta'nce by. means of a hand wheel 19 said roller, being I provided for drawing along the bar.

h p rat o ft e device s as The distance between the rollers I and thetool having beenadj ustedas above ,i0'5 i with a striated or flutedsurface' follows; i ra d-'5 mentioneditlie template. ruler 17 is secured at both ends thereof of. the said b ar,"the

workman operates the hand wheel 19 in such manner as to draw along the-piece and to bring marking lines successively opposite the pointer 18; as each line comes into posicaused to bend under an effort which is easily obtainable by a person acting upon the end. of said bar. The clamps 22 are disposedupon the angle bar 1 at frequent 1uterval's, said clamps being provided with the clamping screws 23 and the stop pieces 2% all of which are fitted with tempered steel points. The distance between said points and the back edge of the angle bar is exactly the same for all the clamps.

The'sheet metal piece under operation is secured to the angle bar 1 by meansot the said clamps. Along the edge of the sheet, metal piece is marked out for instance by a chalked cord a straight line uponwhich are brought the points of all the clamps, the latter being operated with suflicient force to cause the said points to enter the sheet metal.- l l ith the points thus ranged in line,

the rear side of the angle bar is now exactly in the straight position. The rollers 25 support the sheet metal piece 20 in such manner v as to permit of readily moving the latter.

The work on the piece is carried out in the same manner as in the preceding case. The said template 1? 1s secured along the edge of the angle bar; the marking lines of said template are arrested successively opposite the fixed pointer 18, which permits of drilling r punching series, of holes disposed in a straight line and spaced in the same manner as the lines on the template. r0 cause different parallel lines to pass in line with the tool for the purpose of forming various rows of holes such as is usually carried out in sheet metal work, the entire assemblage of the guide rollers is carried upon a plate 28 movable in grooves whichare situated perpendicular to the centre lines of the fixed rollers. The said plate is moved by a screw 29 actuated by a handwheel 30, and the plate may be secured in any desired position by suitable set screws. Upon the side-oi the plate 28 is disposed a pointer 31 cooperating with a template 32 secured to the machine frame The template 82 is preferably provided with diiierent colored lines corresponding to the various rows of holes to, be formed. 7

The'method of operating is as follows:

The hand wheel 30 is actuated to bring the pointer 31 opposite the line on the template 32 corresponding to the row of holes to be formed, for instance a red line. The hand wheel 19 controlling the actuating roller is then operated to bring the sheet metal piece under the tool at the same time that the template 1'? is broughtopposite the pointer 1.8, and each time that one of the red lines of said template comes into posi- ,ion, the movement is stopped and the ma chine is put in operation. It should be remarked that the work can be carried out without requiring any previous trimming of the edges of the sheet metal piece.

Claims; i M

1. The combination, with a drilling or punching machine, of a guiding and centerdevice for the pieces under operation, comprising an angle bar serving as a support for said pieces and longitudinally movable, the vertical portion thereof being downwardly directed, two finely fluted stationary Tone s serving as hearing members for the rear side of said angle bar and also as means for moving the same, two movable rollers mounted upon swinging arms which. are drawn back or pressed against the said angle bar by springs, a template carrying lines corresponding to the space between centres of the holes to be formed and secured to said angle bar, a pointer disposed upon. the machine frame and cooperating with said lines of the template, two plates, carrying said fixed and movable guiding rollers and provided with oval shaped holes, clamping bolts disposed in said holes and secured to the machine frame permitting the move ment or said plates for adjusting the dis tance between said rollers and the axis of the tool, and hand wheel mounted upon, the shaft of the fixed rollers and adapted for the hand operation of said rollers.

2. The combination, with i a drilling or punching machine, or a spacing feed mechanism, comprising an angle bar serving as a lbs support for said pieces and longitudinally.

movable, clamps secured to said angle bar at frequent intervals, clamping screws dis posed at the npper'partof said clamps, stop pieces, said clamps serving as means for securing material to beoperated 'upon to said angle bar, and rollers situated below the piece under operation "for the purpose of supporting the same.

3. The combination, with, a drilling inachine, of a spacing feed mechanism, comprising an angle bar serving as a support for said pieces and longitudinally movable,guiding rollers for said angle bar, a movable plate supporting the said guiding rollers and mov able in direction-perpendicular to the centre line of the fixed rollers, a screw for moving tie saidplate, a hand wheel secured to said screw for the hand operation thereof, a pointer disposed upon the side of said plate,

and atemplate secured to the machine frame for indicating the movement of said plate] 4. The combination, with a drilling or punching machine, of a spacing feed mechanism, comprising a longitudinally movable angle bar, two uxtaposed guiding rollers,

one of said rollers being slidable with easy :t'riction upon the hub of the second,'a, llOll Zontal shait' situatedperpendicular to the direction of longitudinal movement oi saidangle bar and carrying the said guiding rollers, two rollers supporting said shaft,

' which latter is caused to bear upon the sharp edges of triangular grooves, rods for main taining said. supporting rollers in spaced reat each end, a template disposed uponsaid bar, jaws engaging the recesses at the sides; of the angle bar, an adjustment screw dis posed upon each of said jaws for enp'aging the recesses at the ends of the bar whereby said template shall be -maintained' in place.

6. The combination with a. drilling or punching machine, of a spacing feed mechanism comprising guiding means, elements guided by the said guiding means and adapt-' ed to support the pieces of work, clamping elementshaving screws with tempered points and adapted to be attached'onthe one hand to the piece of work according to straight line drawn in advance and on the other hand to the said guided elements,,thelatter being constituted by an angle iron member mov- :tuted by a ledge carrying lines being spaced ,in a suitable maniier,;fixing means adapted to maintain the said template upon the said able lengthwise whereof the vertical flange is downwardly extending, the guioiug being constituted by two fixed rollers with fine flirting, serving as a support for the baclt of the said angle iron member and as a displacing means and by two movable rollers which are caused tobear upon the saidangle iron member by springs, a template provided with marking lines corresponding to the distance between the centers of the holes to be drilled and secured to the angle iron member, a pointer secured to the machine frame and eo-operatmg with lillellllGS of the template, two plates carrying the said fixed and movable guiding rollers and having oval-shaped holes. formed therein, attaching pointer before which bolts passing through the said holes and secured to-the maeliinetrame, providing for the movement ioi the. saidplates in'lorderf to ees the m lbetweel the said} I rollers and the. axis of {the tool, and a hand wheel secured the aXle ofjtheiiized rollers for theyl and control of the same.

I 7;The combination with a drilling-or; ,v punching machine, of spacing feed mach aiiism' comprising guiding means, elements guided-by the said guiding means and adapt: ed-to support the 1316068 ofwork, clamping elements having screws with tempered pointsand adapted to be attached on the one harm, to thepiece cit-work accordingto astraight. line drawn in advanceandonthe other hand to the said guidedelements, a template pro- 'vided with marked lines corresponding to th distance between the centers or" the holesto be drilled and secured to the guided ele ments, a, pointer secured to the .inachine frame and co-operating withthewlines of the template, twoplatescarrying the said guiding means, and means torjchanging the distance between the guiding means and the tooloi? the drilling or punching machine; I 8'. The combination Wltll a drilling or means for said angle bar, "a template conspa'ced in a suitable manner,fixing means angle bar in removable manner and a fixed be displaced. 'j

means for said anglebar, a template constianp'le, bar in a removable manner, rotarv sov punching machine, of an angle bar, guiding stituted ledge carrying lines being adapted to secure, said template upon saidfi the said templatewill i drivingmeans acting upon {the said angle bar in order to displace the same and aifixed v ointer belorewhich the said template will bedisplaced,

In testimony, that presence of two subscribing witnesses.

- lVitnesses:

I claim the foregoing as u my invention I llZtVQQSlgDBCl my name in JOSEPH PABISI v,

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