US1023268A

US1023268A - Shaping-machine.

Info

Publication number: US1023268A
Application number: US51232309A
Authority: US
Inventors: Aristides Reynolds Murray
Original assignee: Cincinnati Shaper Co
Current assignee: Cincinnati Shaper Co
Priority date: 1909-08-11
Filing date: 1909-08-11
Publication date: 1912-04-16
Anticipated expiration: 1929-04-16

Description

A. R. MURRAY.

SHAPING MACHINE.

APPLIOATIOH FILED AUG.11, 1909.

1,023,268. Patented Apr. 16, 1912.

2 SHEETS-SHEET 1.

W/Tnesses: lm/enlo WflM-AM COLUMBIA PLANOGRAPN co.,\vAsmpm'r0n. u, c,

A. R. MURRAY.

SHAPING MACHINE.

APPLICATION FILED we. 11, 1909.

1,023,268, Patented Apr. 16, 1912.

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

ARISTIDES REYNOLDS MURRAY, OF CINCINNATI, OHIO, ASSIGNOR TO THE CINCINNATI SHAPER COMPANY, OF CINCINNATI, OHIO, A CORPORATION OF OHIO.

SHAPING-MACHINE.

Specification of Letters Patent.

Application filed August 11, 1909.

Patented Apr. 16, 1912.

Serial No. 512,323.

To all whom it my concern:

Be it known that I, Ains'rlons REYNOLDS MURRAY, a citizen of the United States, residing at Cincinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Shaping-Machines, of which the following is a specification.

My invention relates to shaping machines, and has for its object the provision of new and improved means for accom lishing and controlling the feed of the too toward the Work, and the invention will be readily understood from the following description and claims, and from the drawings, in which latter:

Figure 1 is a side elevation of so much of a shaping machine as is necessary to illustrate my invention. Fig. 2 is a front elevation of the same. Fig. 3 is a plan view of the same. Fig. 4 is an enlarged side elevation of the tool end of the tool-ram and guideway, partly broken away, and partly in vertical section on the line zz of Fig. 2. Fig. 5 is a vertical cross-section taken on the line y-y of Fig. 4. Fig. 6 is an enlarged axial section on the line yy of Fig. at

showing the mounting for the ratchet-wheel.

Fig. 7 is a detail in horizontal section on the line ww of Fig. 4:; and, Fig. 8 is a detail in vertical section on the line w-w of Fig. 4.

1 represents the column, on which the tool-ram 2 is caused to reciprocate in a slide way 3 in any ordinary or well-known manner. For accomplishlng this reciprocation I have shown a crank-arm 5 integral with a gear 6, a pinion 7 operated by a drive-shaft 8 meshing with the gear.

9 is a crank-block adjustable in a guideway 10 of the crank-arm by a screw-rod 11, the crank-pin 12 of the crank-block being journaled in a slide-block 13 having movement in a guideway 14 of a rocker-arm 15 pivoted on a shaft 16 to the column and provided with slots 17 encompassing antifriction rollers 18 on pins 19 on a positioning block 20 adjustable lengthwise of the tool-ram by a screw 21 and secured in adjusted positions by a clamp 22. The adjustment of the crank-block adjusts the length of stroke of the ram, and the adjustment of the positioning-block determines the location of stroke of the ram.

25 is a swivel-block having a trunnion 26 journaled in the bearing 27 at the forward end of the ram. The swivel-block carries a tool-slide 28 on which a tool 29 is adapted to be suitably secured. The tool-slide is adjustable toward and from the work, which is arranged to be supported on a table 30, there being a guideway 31 between the toolslide and the swivel-block. The adjustment of the tool-slide is accomplished by means of a screw-rod 32 havin threaded bearing 33 in the swivel-block, t e screw-rod being held against endwise movement in a bearing 34 of the tool-slide. The swivel-block is arranged to be adjusted about its axis for presenting the tool either in vertical or angular position to the stock being operated on, and held in adjusted position by a clamp-block 35 received in an annular groove 36 of the swivel-block, into which it is forced by a set-screw 37.

41 is a bevelgear journaled against endwise movement in a bearing 12 of the swivelblock and having spline-connection 43 with the screw-rod.

44 is a longitudinal shaft whose. rotary axis is coincident with the swiveling axis of the swivel-block 25 and which has at its forward end a bevel-gear 45 which meshes with the bevel-gear 41 and at its rear end a spiral gear 46 which meshes with a spiral gear 47 on a cross-shaft 48 to which a bush ing 49 is secured, as by a key 50.

51 is a ratchet-wheel encompassing the bushing 49, the ratchet-wheel having frictional engagement with the bushing for causing the cross-shaft 48 to rotate with the ratchet-wheel during the ordinary resistances of the tool feed, the ratchet-wheel being however permitted to rotate with relation to said cross-shaft upon the presence of greater resistance than that necessary to accomplish the ordinary tool-feed. Thus the bushing is provided with a flange 52, the ratchet-wheel with an internal flange 53, there being a collar 54 having a flange 55, the flange of the ratchet-wheel being received between the flanges of the bushing and collar, with friction-disks 56 located between the flange of tho ratchet-wheel and the flanges of the bushing and collar. The collar has spline-connection 57 with the bushing. A nut 58, threaded to the bushing, permits adjustment of the frictional resistance between the ratchet-wheel and bushing.

61 is a pawl-bracket provided with a slot the arrow a,

62 through which a securing-bolt 63 is arranged to be received in selective threaded apertures '64.- located at suitable distances apart lengthwise of the guideway for the tool-ram, and for readily positioning said pawl-bracket the same is provided with a longitudinal lug 65 adapted to rest upon the upper face of the top-bar 66 of said guideway. The bracket is provided with an upward extension 67 to which an arm 68 is pivoted on a bolt 70, the arm being provided with a multi-tooth pawl 71, the teeth of which are located in a plane substantially parallel with the direction of reciprocation of the ratchet-wheel, and substantially in line with the tooth of the ratchetwheel, located at a point in the periphery of the ratchet-wheel intersected b a radial line at right angles to the path of reciprocation of the ratchet-wheel, being in the present instance the lowermost tooth of the ratchet wheel.

.As the ratchet-wheel advances toward the mu'lti-t-ooth pawl, in the idle stroke of the ram, the direction of which is indicated by engagement will thus be successively had between a plurality of teeth of the ratchet-wheel and a plurality of teeth of the multi tooth pawl, preferably Without substantially moving the teeth of the m-u'lti-tooth pawl out of said plane in line with said lowermost tooth of the ratchetwheel. The construction is such that, irrespective of the extent of the are through which the ratchet-wheel is caused to turn at each step of movement, the turning force will be continuously exerted upon the ratchet-wheel substantially at the point in its periphery and in the direction which will require least power for effecting the turning and also permit the greatest range of movement at each reciprocation of the ratchet-wheel. In this manner the greatest range in extent of feed with least jar upon the parts is provided.

For urging the multi-tooth pawl into engaging position with the ratchet-wheel, l provi e a spring 75 received in a socket T6 of the arm 68 about a screw 7 7 threaded into the lug 65 of the pawl-bracket at 78, whereby the rear end of the arm 68 is held down yieldingly for maintaining the forward end of said arm having thereon the multiteeth of the pawl into contacting range with the ratchet-wheel, a bolt 79 being provided on said pawl-bracket against which the arm 68 is arranged to engage for limiting this movement. The form of the teeth on the multi-tooth pawl and the ratchet Wheel is such that the ratchet-wheel may pass forwardly over the multi-tooth pawl Without causing operation of the ratchet wheel when the tool-ram is moved in reverse direction for its cutting stroke. If it is de sired to bring the multi-tooth pawl into inoperative position, the end of the arm on which the same is located is depressed and held in depressed position by a set-screw 80 threaded in the bracket at 81 and received in a socket 82 of said arm.

In operation, if it is desired to accomplish the feed of the tool toward the work by means of power, the pawl-bracket 61 is positioned longitudinally of the slideway for the tool-ram so that one or more teeth on the multi-tooth pawl may be engaged by a corresponding number of teeth on the ratchet-wheel during the idle stroke of the tool-ram, for accomplishing tool-feed in successive steps of desired extent, depending on the number of teeth engaged. By the construction stated, the teeth of the ratchetwheel, which sequentially arrive substantially in the radial plane of said ratchetwheel which is at right angles to its path of reciprocation, are engaged by the successive teeth of said multi-tooth pawl. The frictional resistance between the ratchetwheel and the feeding connection for the tool-slide is such as to normally cause feed of the tool upon the consequent operation of the ratchet-wheel. This tool-feed by successive steps will continue during the operation of the machine until a rod 85, which is adjustable lengthwise in a bearing 86 and held in adjusted position by a setscrew 87 on the tool-slide, strikes a lug 88 on the swivel-block, by which an adjustable stop for the tool-feed is provided, which overcomes the frictional resistance between the ratchet-wheel and the cross-shaft, so that, even if the operation of the machine continues, the successive turns of the ratchet-wheel will not affect the tool-position, the ratchet-wheel thereafter simply turning idly.

If it is desired to manually adjust the tool with relation to the work, the same may be accomplished by means of a hand-wheel 89 secured to the screw-rod 32, by which rotation is imparted to the screw-rod and the shafts connecting therewith for causing the screw-rod to turn irrespective of engagement of the ratchet-wheel with the multi tooth pawl.

I have herein shown and described what appears to me to be the most advisable form of my invention, but it is obvious that changes in construction may be made without departing from the spirit of my invention.

Having thus fully described my inven- (ion, what I claim as new and desire to secure by Letters Patent is:

1. In a shaping machine, the combination with a reciprocating ram and a tool-slide, of a rotative part having operative connection with said tool-slide for adjusting the same on said ram, a ratchet-Wheel mounted on said ram and having operative connection with said rotative part, a multi-toot-h pawl with the successive teeth of which the successive teeth of said ratchet-wheel are arranged to make successive engagements, the reeiprocations of said ram moving said ratchet-wheel into and out of juxtaposition with said multi-tooth pawl, and means for causing inoperative relation between said pawl and ratchet-wheel during said lastnamed relations.

2. In a shaping machine, the combination with a reciprocating ram and a tool-slide, of a rotative part having operative connection with said tool-slide for adjusting the same on said ram, a ratchet-wheel mounted on said ram and having frictional connection with said rotative part, a pawl with which the teeth of said ratchet wheel are arranged to make successive engagements for feeding said tool-slide on said. ram with a step-l'iy-step movement, the reciprocations of said ram moving said ratchetwheel into and out of juxtaposition with said pawl, said frictional connection be tween said ratehet-wheel and rotative part permitting cessation of movement of said tool-slide irrespective of continuing engagements between. said ratchet-wheel and pawl.

3. in a shaping machine, the combination with a frame, a reciprocating ram, and a tool-slide, of a rotative part having operative connection with said tool-slide for adjusting the same on said ram, a ratchetwheel mounted on said ram having operative connection with said rotative part, a multi-tooth pawl supported from said frame, the teeth of which are located in a plane substantially parallel with the path of travel of said ram and coincident with the bottom of said ratchet-wheel for permitting engagements between successive teeth on said ratchet-Wheel and pawl while said teeth 011 said pawl are maintained substantially in said plane during travel of said ram in one direction for effecting a step-by-step feed of said tool-slide, means for adjusting said multi-tooth pawl lengthwise for determining the number of teeth thereon engaged by said ratchet-wheel, and resilient means for permitting retraction of said mnltitooth pawl with relation to said ratchet-wheel during travel of said ram in the opposite direction, the reciprocations of said rain moving said ratchet-wheel into and out of juxtaposition with said multitooth pawl.

4. In a shaping machine the combination with a ram and tool-slide, of a rotative part having operative connection with said toolslide for adjusting the same on said ram, a ratchet-wheel having operative connection with said rotative part, a multi-tooth pawl, an adjustable bracket on which the same is mounted, means between said pawl and bracket for normally urging said pawl into the range of said ratchet-wheel, and positioning means between said pawl and bracket for locating said pawl. in inoperative position with relation to said ratchet-wheel.

in a shaping machine, the combination with a ram and tool-slide. of a rotative part having operative connection with said toolslide for adjusting the same on said ram, a train of means for intermittently rotating said rotative part with a step-by-step movement coincident with the reciprocating movements of said ram, said last-named train of means comprising a friction driveconnection, and adjustable stopping means for said tool-slide nosing stoppage of part of said train of means for causing relative movement between elements of said friction drive connection while maintaining said friction drirewonnection in driving relation.

(3. ln a shaping machine, the combinatio with a. frame, a ram, and a tool-slide, of a rotative part having operative connection with said tool-slide for adjusting the same on said ram, a ratchet-wheel mounted on said reciprocating ram and having frictional operative conneetimi with said rotat'ive part, a multi-tooth pawl, the teeth of which extend. in a line parallel to the path of reciprocation of said ratchet-wheel and coincident with the tooth-position of the tooth of said ratchet-wheel in said line which is farthest removed from the rotary axis of said ratchet-wheel, and means for permitting yielding of said pawl upon retractive movement of said ratchet-wheel.

7. In a shaping machine, the combination with a frame, a ram and a tool-slide, of a rotative part having operative connection with said tool-slide for adjusting the same on said ram, a ratchet-wheel having operative connection with said rotative part, a bracket adjustable on said frame, a pawlbar pivoted on said bracket, a multi-tooth pawl for said ratchet-wheel on said pawl bar, and a spring between said bracket and pawl-bar for normally urging said multitooth pawl into range of said ratchet-wheel, substantially described.

8. In a shaping machine, the combination with a frame, a ram and a tool-slide, of a rotative part having operative connection with said tool-slide for adjusting the same on said ram, a ratchet-wheel having operative connection with said rotative part, a bracket adjustable on said frame, a pawlbar pivoted on said bracket, a multitooth pawl for said ratehet -wheel on said pawl bar, a spring between said bracket and pawl-bar for normally urging said multitooth pawl into range of said ratchet-wheel, and means for positioning said pawl-bar for locating the multi-tooth pawl thereon out of range of said ratchet-wheel, substantially as described.

9. In a shaping machine, the combination with a ram and tool-slide,- of a rotative part having operative connection with said tool slide for adjusting the same on said ram, a train of means for intermittently rotating said rotative part with a stcp-by-step move ment coincident with the reciprocating movements of said 'am, said last-named train of means comprising a friction driveconnection, means for adjusting the driving power of said friction driveconnection, and adjustabl stopping means for said toot slide causing stoppage of part of said train of means for causing relative movement between elements of said. friction drive-eonnection while nmintaining said friction drive-connertion in driving relation.

10. In a shaping machine, the combination with a reciprocating ram and a toolsiide, of a rotat'ive part having operative connection with said tool-slide for adjusting the same on said ram, a ratchet-Wheel mounted on said ram and having operative connection with said rotative part, a multitooth pawl with the successive teeth of which the successive teeth of said ratcl'iet-wheei are arranged to make successive engagements, means for adjust-ably positioning said multitooth pawl lengthwise of said ram for determining the number of teeth thereof en 'aid ratchet-wheel, the reciprocar of said ram moving said ratchet-Wheel into and out of juxtaposition with said multi-tooth pawl.

In testimony whereof, I have signed my name hereto in the )resencc of two subscribing witnesses.

ARISTIDES REYNOLDS MURRAY.

Witnesses:

SAML. \VHITE, O'r'ro FABER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). G.