US715832A - Cross-head feed for shaping-machines. - Google Patents

Description

No. 75,832. Patented Dec. I6, I902.

a. J. MEYER. CROSS HEAD FEED FORSHAPING MACHINES.

(Appiication filer] Aug 12, 1901.)

2 Sheets-Sheet I No Model.)

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Patented Dec. I6, I902.

No. 715,832. a. J. MEYER cnoss HEAD FEED FOR SHAPING MACHINES.

(Application filed Aug. 12 1901.)

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UNITED STATES PATENT OFFICE.

GEORGE J. MEYER, OF MILWAUKEE, WISCONSIN, ASSIGNOR TO GOULD & EBERHARDT, OF NEWARK, NEW JERSEY, A CORPORATION OF NEW JERSEY.

CROSS-HEAD FEED FOR SHAPING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 71 dated December 1902- Applicatitn filed August 12, 1901. Serial No. 71,739.

To aZZ whom it may concern.-

Be it known that I, GEORGE J. ll/IEYER, a citizen of the United States, residing at 407 Florida street, Milwaukee, county of Milwau- 5 kee, and State of Wisconsin, have invented certain new and useful Improvements in Cross-Head Feeds for Shaping-Machines having Vertical Tool-Slides, fully described and represented in the following specification and to the accompanying drawings, forming a part of the same.

The present improvements relate to that class of shaping-machines in which the frame is provided upon the top with a reciprocating i 5 ram and upon the front with a horizontal crosshead having means'for adjusting it vertically beneath the ram, which carries atool-slide to move the tool at right angles to the cross-head. Such cross-head is provided with a carriage 2b to support the Work-piece beneath the tool, and a bracket-table is commonly attached to such carriage and used with or without a vise to support certain kinds of work-pieces; but such table is usually made detachable from 2 5 the carriage, so as to permit the fastening of other kinds of work-pieces directly to the face of the carriage. Heretofore the feed for the table has been furnished by a screw extended lengthwise of the cross-head, and in such class of shaping-machines when it is necessary to feed the table along by hand it has commonly been effected by a handle fitted to the screw at the extreme end of the cross-head.

This invention provides a convenient means 3 for the operator to actuate the horizontal or table feed, while at the same time operating the vertical feed of the tool-slide.

In shaping-machines it is frequently necessary for the operator to feed the tool ver- 40 tically and at the same time feed the carriage and work-piece horizontally to form oblique and curved surfaces upon the work-piece, and great difficulty is found in reaching with one hand to the end of the cross-head in such shaping-machines to operate the horizontal feed, while at the same time reaching with the other hand to the vertical feed-screw upon the ram, which is in constant motion while operating the tool. Such use of two hands often places the body of the operator in a position (No model.)

very inconvenient to watch the work-piece where the tool is operating to discover and regulate the feed in the required manner. This difficulty in the operating of shapingrnachines is greatly increased Where the operator is seated, so as to watch the work readily, as he cannot in such position easily reach the screw-handle at the end of the cross-head while operating the vertical feed-screw upon the reciprocating ram.

Shapingmachines are especially used to form intricate shapes and surfaces by the operation of the tool, and the means heretofore provided to manipulate the cross-head feedscrew often forces the body away from the work-piece, so that the workman is unable to Watch the operation of the tool in the needful manner without making continuous and painful efiort. To obviate this difficulty, I provide the carriage with a rotatable nut fit- 7o ted to the feed-screw of the cross-head, and I also furnish the carriage with a feed-spindle geared to such nut and projected through an aperture in the carriage into a convenient position to be turned by one hand of the operator while using the other hand to work the vertical feed. .This construction brings the handles of both the vertical feed-screw and the horizontal feed-screw sustantially in line with the tool, so that While the operator is grasping the said handles he can also readily inspect the operation of the tool. The operators body is thus brought into a natural position in relation to the work-piece. Such a rotatable nut has been used upon the feedscrew of a lathe or milling-machine; but the construction required in my invention is peculiar in that the shaping-machine is provided with a vertical feed-screw as Well as a horizontal feed-screw, so as to require the use of both 0 hands at once. The construction in the pres ent case also differs from those referred to in sometimes requiring the detachment of the table from the carriage, so that the means for turning the screw in connection with the 5 table must be removable therewith.

In the annexed drawings the invention is shown applied to a shaping-machine.

Figure l is a front elevation of the machine. Fig. 2 is a horizontal section upon a 10c larger scale of the carriage and part of the cross-head inverted, and Fig. 3 is a vertical section of the cross-head and carriage through the center of the auxiliary feed-spindle with an alternative construction for the latter. Fig. 4 shows another alternative construction.

The shaping-machine frame a is shown supporting the cross-head b and ram 0, which carries the vertical tool-slide d. This slide is fed downward by screw e, having handlef, and carries the tool g. The carriage his fed upon the cross-head by a horizontal screw 2',

having handlej at the end and furnished also with gearing to turn it automatically when planing flat surfaces. The gearing shown consists of cog-wheels 7s and a pawl m, vibrated by a lever m through the agency of a reciprocating connection 01. in a manner well known. Such gearing is fitted to the feedscrew at the end of the cross-head and necessarily crowds the handle j still farther from the tool and from the handle of the vertical feed-screw e. The carriage h is shown provided with a table p, carrying a vise q, and a die 0 is shown in the vise with curved surfaces, requiring the simultaneous feeding of the tool in both directions. The nut o" of the cross-head screw is shown fitted to revolve in a bearing 7L2 upon the carriage and connected by gears s with a spindle t, which is carried in a bearing r upon the carriage or table. When the screw i is turned by the handle j, the nut stands still and the carriage is fed by the screw; but when the nut is turned by the spindle t the screw stands still and the carriage is fed by the nut.

The spindle i is shown detachable from the gearing of the nut s by several constructions, Fig. 2 showing the inner end of the spindle fitted to a socket in the hub of one of the gears and removable therefrom, while Figs. 3 and 4 show one of the gears attached to the spindle and removable therewith. In Fig. 2 one of the gears s is shown formed upon the end of the nut r and the other gear is shown formed with a hub fitted to a bearing in the carriage h. This hub is formed with a recess or socket to which the inner end of the spindle t is fitted, and a collar 25 is shown next the end of the hub to rest upon the face of the carriage. A stud or key 3' upon the spindle fits a notch in the outer end of the hub, and thus drives the same when the spindle is engaged with the gear, while it permits the removal of the spindle from the socket in the gear at pleasure. A bolt 11. is extended through the spindle and is threaded into the gear at the bottom of the socket. The bolt has a head at its outer end, thus serves to draw the spindle firmly into the socket upon the gear and clamp the two together, the spindle and its key then operating to rotate the nut when the spindle is turned. The collar 15 is clamped by the bolt upon the outer end of the hub of the gear and turns against the outer side of the carriage, so that the gear and collar hold the spindle from longitudi nal movement in opposite directions. The spindle is formed with a handle w, by which the operator turns it.

When it is required to bolt a work-piece directly upon the carriage, it is necessary to remove the table and vise, and the removal of the bolt to permits the spindle t to be removed at the same time, as it detaches the spindle from the socket in the gear 3. When the spindle is removed, the carriage is fed by turning the screw i, and the nut is then held from rotation by the thumb-screw 1) or other suitable means.

Fig. 3 shows the spindlet connected permanently to the gear 3 and carried in a tubular bearing 2?, which is bolted detachably to the carriage. A hole h, large enough to pass the gear, is formed in the carriage beneath the foot of the bearing 15 and the bear ing, with the gear and spindle, can thus be removed whenever necessary.

By locating the spindle for the horizontal feed beneath the tool and work-piece the hands of the operator can be reversed and he can work the vertical feed-with his right hand and the horizontal feed with his left hand by grasping the handle 10, and his body is thus brought close to the tool and into a position where he can inspect the work-piece without twisting himself uncomfortably, as heretofore.

In Fig. 4.- the spindle t is mounted obliquely, so as to be projected through a bearing 19 in one of the flanges p, which extends downward to support the table 19.

The foot of the table, by which it is attached to the carriage h, is also formed with an inclined bearing p and the spindle is thus supported at both ends. This oblique arrangement of the spindle brings it to one side of the center of the vise q and renders it more convenient to reach in certain cases. With such oblique arrangement of the spindle it may be connected to the nut r by spiral gears 8 as shown in Fig. 4, or by a suitable arrangement of bevel-gears, as it is immaterial to the invention how the spindle is connected to the nut to rotate the latter.

A hole h is shown in the carriage, adjacent to the bearing 19 to pass the gear through the same, and the bearing 19 is extended into such hole to the hub of the spiral gear. A hole is necessarily formed through the foot of the table to pass the spindle into the hole h, and with the construction shown in Fig. at the spindle remains in such hole when the table is removed from the carriage; but with the construction shown in Fig. 3 the spindle-bearing 25 is detachable from the carriage separately from the table. The handle to is shown detachable from the shaft 15 in Figs. 3 and 4, and the handlej upon the end of the screw 11 is also commonly made detachable, and, if desired, the spindle i may be formed with a square upon the end to fit the handle 9', so that such handle may be used to turn the screw whether applied to the spindle or directly to the screw itself. It will be observed that the addition of the auxiliary spindlet does not interfere in any way with the automatic operation of the feed by the cog-wheels 7c when desired nor with the normal use of the handle j upon the horizontal feed-screw, as the friction of the nut, its gears s, and the spindle t generally suffices to hold the nut stationary when the feed is effected'by turning the screw.

It will be observed in Fig. 1 that the spindle if is shown at the left'side of the center of the vise g, which when the operator uses his left hand to turn the spindle 25 brings his body more nearly in front of the tool g. The table is shown inverted in Fig. 2, sothat the spindle appears to be on the right-hand side of the same, and this is also true of the spindle shown in Fig. 4; but the projection of the oblique spindle is such that when the table is in its normal position the hand-wheel to would be outside the left-hand edge of the table, and thus enable the operator to place his body entirely in front of the tool, if desired. I have therefore claimed this oblique arrangement of the spindle with reference to the table and tool.

Having thus set forth the nature of the invention, what I claim herein is 1. A shaping-machine having a frame with cross-head upon the front, and a ram movable horizontally upon the top at right angles to the cross-head, the sliding carriage h and the feed-screw'with gearing to rotate the screw automatically when desired, the hearing it upon the carriage with the rotatable nut r fitted thereto and to the cross-head feed-screw and the carriage having an aperture h adjacent to such bearing for the passage of a feedspindle, the table 19 detachably secured upon the carriage and provided with means for holding a work-piece beneath the tool, a bearing carrying a spindle with its inner end extended through the said aperture in the carriage and geared to the rotatable nut, and means for turning the spindle by hand, the spindle and its bearing being carried by the table, as and for the purpose set forth.

2. A shaping-machine having a frame with cross-head Z) adjustable vertically upon the front, and a ram movable horizontally upon the top at right angles to the cross-head, the feed-screw t with gearing to rotate the same automatically when desired, the carriage h having aperture h and bearing 77, having nut r fitted thereto and to the screw 01 and provided with a gear for turning the nut and the bearing having the set-screw v for clamping the nutwhen desired, the table 29 secured removably upon the carriage and provided with means for supporting a work-piece beneath the tool, the oblique bearings 19 and p upon the table with feed-spindle t fitted thereto, a handle upon the outer end of the spindle for turning the same,.and the gear upon the inner end of the spindle adapted to pass through the aperture h in the carriage and to engage with the gear upon the rotary nut, whereby the spindle projects through the foot of the table, and the handle upon the feed-spindle is extended at one side of the table, and the table and spindle are removable together from the carriage, substantially as herein set forth.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

GEORGE J. MEYER.

'Witnesses:

PHIL. A. KOEHRING, Row. J. WAGNER.

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