US394363A

US394363A - Metal-planing machine

Info

Publication number: US394363A
Authority: US
Publication date: 1888-12-11
Anticipated expiration: 1905-12-11

Description

(No Model.) 2 Sheets-Sheet 1.

G. HOLLY.

METAL PLANING MACHINE.

J4 a. @M7/537206565,

N4 PETERS. rhuwumugmpmr. wnslvmgmn. D c.

(No Model.) 2 Sheets-Sheet 2.

C. HOLLY.

METAL PLANING MACHINE.

No. 394,363. l Patented Deo. 11A, 1888.

N, PETERS. Phuw-umogmphcr. wnsnmgwn. n. C.

UNITED STATES PATENT OFFICE.

CARLOS HOLLY, OF LOCKPORT, NFV YORK.

vM ETAL-PLANING MACHINE.

SPECIFICATION forming part of Letters Patent No. 394,363, dated December 11, 1888.

Application led September 14, 1887. Serial No. 249,677. (No model.)

To a/ZZ 'whom it may concern.'

Be it known that l, CARLOS HOLLY, of Lockport, in the county ot' Niagara and State of New York, have invented new and useful lmprovements in Metal-Flaming Machines, of which the following is a speciiication.

This invention relates to that class of machines for planing metal in which the work to be planed secured to a horizontal bed, which reciprocates under the cutting-tool.

The object of my invention is to improve the feed mechanism whereby the tool is moved preparatory to taking a new out, in such manner as to render the feed positive and to reduce the dead motion of the reciprocating bed to a minimum.

My invention consists of the improvements which will be hereinafter fully described, and pointed out in the claims.

In the accompanying drawings, consisting of two sheets, Figure l .represents a fragmentary side elevation of a planer provided with my improvements. Fig. 2 is a fragmentary horizontal section on line .r .1', Fig. l. Fig. is a vertical cross-section on lille y y, Fig. l. Fig. 4 is a similar view on line 2, Fig. l. Fig. 5 is a sectional elevation on lineawr, Fig. il, showing the feed mechanism in position to be operated upon. Fig. o is a sectional rear elevation of the upper portion of the machine on line zu yzu, Fig. l. Fig. 7 is a slight modification of the feed mechanism.

Like letters of reference refer to like parts in the several figures.

A represents the frame of the machine supported upon legs a.

A represents standards arranged on both sides of the frame A and extending upwardly therefrom.

B represents the sliding bed provided on its under side with V-shaped guides l), moving in correspondingI ways formed on the upper portion of the bed-frame A.

C represmits the driving-shaft, which is provided with the usual tight and loose pulleys, whereby the bed B is moved alternately in opposite directions. The shaft O is supported in a suitable bearing at its outer end, and at its inner end in a bearing, C, formed on the bed A.

c represents a pinion secured to the inner end of the driving-shaft C and meshing with a gear-wheel, c2, secured to one end of a counter-shaft, c3, arranged below the drivingshaft and j ournaled in bearin c in the lower portion of the frame A. The counter-shaft c3 is provided at its opposite end with a gearpinion, c5, meshing with a gear wheel, D. The latter is secured to the feedshaft d, which is arranged above the counter-shaft c3 and carries the feed-pinion d', which meshes with the feed rack-bar d? of the bed B in the usual manner. The wheels c5 and D and portions of the shafts c and d are shown in dotted lines in Fig. S.

E represents a movable bar arranged longitudinally on one side of the machine and guided in ways e, formed in the lower inner side of one of the standards A', and held therein against vertical misplacement by angle-pieces e. The bar E is provided at one end with a screw-threaded rod, e2, carrying a movable collar,

F is a horizontal toothed segment pivoted by a stud, j', to a horizontal plate, f', which connects the frame A and the standard A', which is arranged above the driving-shaft c. The segment F meshes with a pinion,f-, which is secured to the lower end of a vertical shaft, f3. The latter is seated at its lower end in a socket in the plate j" and journaled at its upper end in the standard A.

g g represent downwardly-proj ecting shoulders formed, respectively, on the outer and inner sides of the bar E and g2 g3 are upwardlyprojecting pins secured to the segmentF and adapted to engage with the shoulders g g.

g4 represents a laterally-projecting fiange formed on the bed B, over the bar E, and provided with a row of openings, g5.

o6 g7 represent removable stops or pins inserted in the openings g5 on opposite sides of the collar e3 and projecting downwardly far enough to strike the collar and move the bar E and the parts connected therewith when the movable bed B has carried the work past the cutting-tool, thereby shifting the belts on the driving-pulleys and changing the direction of the movement of the bed B.

G represents the usual shipper-bar, which shifts the belts on the driving-pulleys of the shaft C and moves in a bearing, gs, secured to the standard A.

Q9 represents a horizontal arm secured to IOO the upper end of the vertical shaft f3 and connecting thel latter with the shipper-bar G in such manner that the rocking motion ol the shaft f3 moves the shipper-bar to and fro.

l'l represents an upwardly-projecting camsleeve formed on thepinion f2, and provided on its upper side with a spiral surface. II represents a similarly-shaped cam-sleeve moving loosely on the shaft f and resting with its lower spiral surface on the cam H, so that the rocking motion of the lower cam, ll', causes the upper cam to risc and fall on the shaft The cam H carries an arm, 71,7which is pivoted at one end to the standard A andconnected at its opposite end by a spring, 71, to an arm, h2. The arm h2 is pivoted at its rear end to the side ot the bed B, and carries at its front end a depending link or slotted bar, 7V".

I represents a short horizontal shatt journaled in a bearing, 11, in front of the dri vingshaft C. rPhe bearing i forms part of a frame, i', which is secured to the bed-trame A.

l represents a ratchet-wheel secured to the inner end of the shaft l, and 'i2 represents two elbow-levers hung loosely on the shaft I on opposite sides of: the ratchet-wheel l and carrying a pawl, fir", adapted to engage with the wheel l.

4 represents a detent-pawl secured to the frame A and engaging at its Afree end with the ratchet-wheel l.

J represents a feed-iin ger pivoted with its bifurcated front end to the lower arms of the pawl-levers i2, and guided in its vertical movement in a U-shaped guide, secured to the frame A.

J represents a milled or toothed feed-wheel secured to the driving-shaft C and arranged j, and thereby hold the `feed-finger J out of engagement with the wheel J, as `clearly shown in Fig. l. Y

las represents a spring connecting the locking-inger 7c with the feed-finger J, whereby the weight of the latter is added to the lockinginger lc, to prevent the latter from disengaging from the pin k2.

Z represents a laterally -projecting pin formed on the feed-'finger J and engaging' in the slotted link 71.3.

M represents a stop-bar secured at its rear end to the lower end of the pawl-levers 2 and supported in a guide, m, secured to the frame A. The movement of the 'feed-ringer J toward the feed-wheel J is limited by a pin, m', which strikes against the guide fm. The pin fm is seated in one of a series of openings, m2, formed in the stop-bar lll.

N represents a bevel gear-wheel secured to the outer end of the shat't l and meshing' with a pinion,-N, secured to the lower end of a vertical teed-shait,n. The wheel N is preferably held on its shaft between two friction-collars, which hold the wheel firmly under ordinary conditions, but permit the wheel to slip when the toolY encounters an abnormal obstruction. rlhe feed-shaft oz,y is seated at 'its lower end in a socket, N2., formed on the upper side of the bearing i, and is guided at its upper end in a bearing, n, 'formed on the rear side of the vertical feed-slide a2, as clearly shown in Fig. G. The slide n.2 is guided on the standards A in the usual manner.

O represents the transverse slide moving` on the vertical slide n2 and carrying the cutting-tool O in' the usual manner. Yrlhe transverse slide O is operated by the usual screw, o, and shaft o. rlhe drawings represent the transverse feed-screw geared with the vertical feed-shaft n, so that the tool-holder is ted horizontally.

0i represents a gear-wheel which is secured to the screw 0, and which meshes with a gearwheel, o3, secured to a horizontal shaft, o, which latter is provided with a bevel-pinion, (f. rlhis pinion can be rotated in one or the other direction by two movable bevel-pinions, 0G o7, mounted on the shaft n, and either of which can be engaged with the pinion 05 by hand-levers p p, attached to the vertical slide. Each of the hand-levers p p is provided with a locking-lever, p2, whereby the pinion can be locked in or out ot engagement with Athe pin.- ion The operation of my improved feed mechanism is as follows: In the position of the parts represented in Figs. l and 2 the sliding bed B an diced-wheel J are moving in the direction indicated by the full-line arrows, the work indicated by dotted lines in Fig. l has moved past the cutting-tool, and the cnt has been completed. The stop g of the bed B now engages against the collar e3 and moves the bar E forwardly, causing the shoulder g of the bar E to strike against the pin g3 of the toothed segment F, and thereby swing the latter on its pivot forwardly. This movement of the segment F turns the pinion f2 and the shaft f3 and shifts the belts on the drivingpulleys by the shipper-bar G, which latter is moved by the arm g. By thus shitting the belts on the driving-pulleys the bed B and feed-wheel J are caused to move in the opposite direction, as indicated by dotted arrows in Fig. l. The same forward movement of the segment F causes the cam-sleeve H to be elevated by the turning of the cam H, thereby raising the connected arms 7L h2. The Iirst part of the upward movement of the arm h2 lifts the feed-linger J and locking-linger 7s by the link h3, thereby releasing the locking-finger 7c from the pin k2. The overhanging weight of the elbow pawl-levers i2 throws the feed-finger J backwardly against the face of the feed-vheel J and causes the feed-linger to remain in contact with the feed-wh eel during the movement of this wheel in the direc- IOO IIO

IZO

tion of' the dotted. arrow until the movement is stopped by the pin m of the stop-bar M striking against the guide m, as represented in Fig. 5. The feed-finger J is now held in an elevated position slightly above the feed-wheel J by the link 7i. This upward movement of the 'feed-finger J causes the pawl is to ride backwardly over the ratch et-wheel I and take position for its next forward movement. The parts are held in this elevated position by the canrsleeve ll" until the bed B has moved backwardly sufficiently to cause the pin Q7 to strike against; the collar ciE and move the segment F in the opposite direction by the shoulder g of the bar E eiigag'ing' against the pin g2 of the segment, as shown in lFig'. l. 'lhis backward movement of the segment causes the pinion f2, cam ll, and shaft f to rotate backwardly and shift the belts on the driving-pulleys, so as to move the bed l?) and feed-wheel J in the direction of the full arrow in Fig'. l. This movement of the cam Il allows the cam-sleeve H', arm 71, spring' 7N, arm h2, link h3, and feed finger .l to descend, thereby causin the latter to engage with the feed-wheel J. The wheel J now carries the linger .l downwardly and backwardly until it is released and held out of engagement by the locking-finger 7c engag'i n g' over the pin 71'? of' the guide j, as clearly shown in Fig'. 7. This backward and down ward movement of the finger .l causes the pawl to engage with the ratchet-wheel I and turn the latter forwardly, motion being transmitted from the i'atchet-wheel through the shaft I and bevel-wheelsN N to the shaft n and `from the shaft n to the feed-screw o by the bevel-wheels o5 o' and gear-wheels o o2. The movement so produced in the screw o causes the tool o to be moved laterally ready for a fresh cut.

The feed movement is effected by my improved mechanism positively and as soon as the feed-fin ger comes in contact with the Yfeedwheel, thereby avoiding' the slip and delay which take place at the beginning of the feedmotion, and the unnecessary expenditure of power after the feeding has been effected, as is the case with friction devices heretofore employed. This slip and delay necessitate the sliding' bed to be moved a considerable distance beyond the cutting-tool before it can be reversed with safety, and this dead motion .of the sliding' bed entails a loss of time and power and unnecessary wearof the parts, which is avoided by my positively acting' mechanism.

The devices whereby the vfeed finger is thrown into engagement with the feed-wheel may be modified without departing from my invention. For iiistance, the feed-finger may be provided with a spring', p3, which connects the finger with the frame or some other stationary part of the machine, and which tends to hold the finger against the face of the feedwheel, as represented in Fig'. T. ln this construction the finger rides loosely on the feed wheel after it has reached the end of' its stroke, and when the feed-wheel reverses the finger is carried along by the feed-wheel until the finger reaches the opposite end of its stroke. This construction is, however, less desirable, because it produces noise by the finger riding' on the roughened 'face of the feed-wheel after the finger has reached the limit of its movement.

I claim as my inventionl. The combination, with the feed-wheel revolving alternately in opposite directions, ot' a feed-finger bearing against said feed-wheel and moved alternately in opposite directions by said feed-wheel, a tool-slide, and mechanism, substantially as described, whereby the tool-slide is actuated by the movement of the feed-finger, substantially as set forth.

2. The combination, with the reciprocating' bed, the tool-slide, and its feed-screw, of a feed-wheel, a feed-finger engaging with said feed-wheel and moved alternatelyin opposite directions by said feed-wheel, a ratchet mechanism actuated by said feed-tin ger, and mechanism, substantially as described, whereby motion is transmitted from said ratchet mechanism to said feed-screw, substantially as set forth.

3. The combination, with the reciprocating bed, the tool-slide, and its feed-screw, of a feed-wheel, a feed-finger engaging` with said feed-wheel and moved alternately up and down by the movement of the feed-wheel, a ratchet mechanism actuated by said feed-1inger, and which actuates said feed-screw, and a locking-finger whereby the feed-linger is held out of engagement with the feed-wheel when said fingeris iny its lowest position, substantially as set forth.

4t. The combination, with the reciprocating' bed, the tool-slide., and its feed-screw, of a feed-wheel, a feed-tinger engaging' with said feed-wheel and actuated by the movement of the feed-wheel, a ratchet mechanism which is actuated by the feed-finger and which actuates said feed-screw, a locking-iinger whereby the feed-finger is held away from the feedwheel, and a lifting-lever whereby said locking-finger is released and the feed-finger engaged with the feed-wheel, substantially as set forth.

5. The combination, with the feed-wheel J', of the feed-linger J', the locking-linger 7L', the locking-stop 71'2, pawl-lever i2, pawl iii, and ratchet-wheel l, substantially as set forth.

The combination,with the feed-wheel J", of the vfeed-finger .l and the lifting-lever 712, provided with the slotted link 7F", substantia-lly as set forth.

7. The combination, with the feed-wheel J of' the feedeting'er J, the lifting-lever 712, provided with the slotted link 71, the arm 71, connected with the lever 7i?, and the lifting-cams H ll', substantially as set fort-h,

8. The combination, with the feed-wheel J', of the feed-finger J, the lifting-level' 7:2, provided with the slotted link 71.3, the arm 71, connected with the lever h2, the lifting-cams H IOO IIO

IIS

the pinion f2, the gear-segment F, provided with Stops g2 g3, the movable bml G, provided with the adjustable collar e3, and the reciprocating bed B, provided with adjustable Stops Q6 gl, substantially :is set forth.

l0. The combination, with the feed-Wheel J, of the feed-linger J, the lifting-lever h2, provided With the slotted linlchs, the ratchet- Wheel I', the paWl-levers i2, and pawl 713, the bar M, provided with stop m', and the guide m, Substantially as Setvforth.

CARLOS HOLLY.

VVitnesseS:

CARL F. GEYER, FRED. C. GEYER.