US1166621A

US1166621A - Slotting-machine.

Info

Publication number: US1166621A
Application number: US66860011A
Authority: US
Inventors: James Monks
Original assignee: Individual
Current assignee: Individual
Priority date: 1911-12-30
Filing date: 1911-12-30
Publication date: 1916-01-04
Anticipated expiration: 1933-01-04

Description

J. MONKS.

SLOTTING MACHINE. I APPLlCATlON FILED 05c. 30, 1911.

1,166,621. Patented Ja11.4, 1916.

a SHEETS-SHEET 1.

WITNESSES: INVENTOR.

1. MONKS, SLOTTING MACHINE, APPLICATION FILED DEC. 30, 1911. v ,v

Patented Jan. 4, 1916.

3 SHEETS-SHEET 2.

WITNESSES.-

" JNVENTOR.

COLUMBIA PLANOGRAPH c0.,\v/\sH1NOToN. D. c.

J. MONKS.

'SLOTTING MACHINE. 7 APPLICATION FILED mac. so. 19H;

Patented J an. 4, 1916.

3 SHEETS-SHEET 3.

WITNESSES: 627

COLUMBIA PLANOGRAPH C0,,wAs1-llNuTON, n. c.

i .STAS PATENT ornicu.

JAMES MONKS, OF HARTFORD,,CONNECTICUT.

s'Lo'r'rING-MAoHINE.

To all whom it may concern Be it known that I, JAMEs MONKS, a subject of the King ofEngland, and a resident of Hartford, in the county of Hartford and State of Connecticut, have invented a new and Improved slotting-Machine, of which the following is a specification.

My invention relates more especially to that class of machines used for slotting the heads of screw blanks, and an object of my invention, among others, is to provide a device of this class that shall be extremely efficient in the character of work produced, and rapid in the quantity of work turned off. This and other objects, which will appear from the accompanying drawing and description, may be obtained in the construction and use of the machine illustrated in the accompanying drawings, in which Figure 1 is a view in front elevation of a portion of a machine embodying my invention, the holders shown in Fig. 3 being omitted. Fig. 2 is a detail view, scale enlarged,

of'the mechanism relating to the saws, and also the feed for the carrier disks. Fig. 3 is a detail view illustrating the construction of the support for the carrier disk, the securing means for the spring holders and the ex tractors, shown in Fig. 1, being omitted.

Fig. 4 is a detail view illustrating the feed '12 is mounted having a driving pulley 13 secured thereto. A driving pinion 14- is secured to the driving shaft and meshes with an intermediate gear 15 suitably mounted, as upon a stud projecting from the standards and having an intermediate pinion 16 meshing with a gear 17 on a cam shaft 18 mounted in the standards or legs, and having secured thereto cams for performing various operations.

. A carrier disk 19 is suitably mounted in the frame of the machine, which frame apart from the bed and standards hereinbefore mentioned will be generally designated by the numeral 20. This diskhas notches 21 located in, its periphery to receive blanks,

the heads of which are to be slotted or nicked Specification of Letters Patent.

Patented Jan. 4, 1916. I

Application filed December 30, 1911. Serial N 0. 668,600.

suitable mannerto a shaft 22, to which shaft an indexing wheel 23 is secured as by means of a tapered locking pin 24: passing through 28 forming the bearing forthe arm. A pawl 29 is pivotall mounted upon the arm in such position that its free end will engage the notches 26 in the indexing wheel.

My improved machine herein shown contains a plural number of carrier disks which operate in pairs, a single member in many instances being employed to perform a dou- -ble function in connection with both disks,

and where herein the description mentions a single disk only, it will be understood as applying equally to both or all the disks unless it b'especifically stated that it refers to a designated disk.

An indexing arm 30 is secured to and projects from the hub 28 in position to be operated by an indexing plunger 31 mounted for reclprocatmg movement in the frame 20.

In the form .of construct on herein shown a single plunger is employed to actuate the V indexing mechanism of two disks, this'plunger having a cross arm 32 located to underlie two of the indexing arms 30, as plainly shown in Fig. 4. An indexing cam 33 is secured to the cam shaft 18 in position to operate the plunger 31.

An important feature of my invention resides in such construction that what I term the effective movement is obtained by means of springs, and this is true of the indexing mechanism, the movement of the parts to position the pawls for feeding movement being obtained by means of the cam 33, and the actual feed or effective movement being obtained by means of a feed spring 34 attached to a spring supporting arm- 35 secured to each of the pawl supporting arms 27, in the construction shown herein a single spring performing thefunction for each of the. indexing mechanisms, the ends of the springs being securedto posts 91.

By reason of the peculiar arrangement of saws hereinafter to be described the carrier disk receives blanks in two of its blank.

of disks. gages a locking bolt cam 40 secured to the notches at each single movement of the disk, a pause occurring during such movement to allow a blank to be deposited in one of the notches, the other blank being deposited while the carrier is at rest, just'before it starts its movement or just after it completes it. In order to effect this peculiar feeding movement the indexing wheel 23 is provided with half the number of notches a's are in the periphery of the disk ashereinbefore described, so that two of the notches will be presented to receive a blank this result a step- 36 is provided in the cam which momentarily arrests the fall of the plunger 31 from the highest to the lowest part of the cam, which movement takes place "abruptly, the movement of the parts toplace the pawl in position to engage its proper notch taking place gradually and being effected by a gradual rise of the cam from its lowest to its highest point.

A locking bolt arm 37 is pivotally mounted on the frame of the machine and has a. locking bolt 38 positioned to engage the notches 26 in the indexing wheel, these notches it will be noticed being so formed that they serve the double purpose of indexing notches and locking bolt notches. r locking bolt spring 39 draws the bolt into engagementwith the notches, as shown in E at a single spring operating upon the locking bolt appurtenant to each of a pair The lower end of each arm encam shaft 18 and properly formed to withdraw the bolt from its notches and allow it to reengage said notches at the proper time. A pair of saws is mounted appurtenant to each carrier disk to slot the heads of the blanks carried thereby, these saws, being caused to operate simultaneously in nicking the heads of blanks, and so positioned that they will operate upon different blanks, one saw operating upon every other blank carried by the disk and the other saw operating upon those not cut by the first mentioned saw. In the peculiar feed hereinbefore described a blank is carried past one saw at each movement of the carrier disk without being operated upon by that saw, but said blank will be located opposite the next saw and be operated upon thereby at some cutting movement. YVhile I have shown a pair of saws operating simultaneously upon every other blank or lowered.

in different sets in the carrier, and each single feed of the carrier presenting two blanks to be so operated upon, it will be understood that this idea may be extended so that more than a pair of saws may be employed, the number of blanks carried past asingle point in each feed of the carrier being made to correspond with the number of saws employed.

in the construction herein shown the saws are located almost but not quite upon ainetrically opposite sides, but in such position that neither saw will operate upon a blank cut by the other saw. Each saw has a shaft 42 mounted on a saw slide e3 movable upon the bed 11. This bed is slotted as at 45 to permit movement of the saw shaft L2 which projects through said slot,

and an opening 46 through the slide is also slightly greater in diameter than the diameter of the shaft in order to allow for adjustment of the saw base l? on the slide The shaft has a head 8 to receive a flanged bushing 49, between which and a clamp nut 50 the saw i1 is secured, the nut 50 being held in place as by means of a nut 51.

The saw base 427 sets within a flange 5:2 uprising from the slide 43, the latter having a dovetailed lip 53 engaging a similar shaped recess in the base. An adjusting screw rotatably carried by the saw base l7 has its threaded end entering a threaded hole in the saw slide 43, and means of which the saw base is held in. its position on the slide.

As a means of adjusting the saw vertically I provide an adjusting arm 55 secured to a lip 56 projecting from the underside of the saw base l7, this arm extending downward and then horizontally into such position that the saw shaft may pass through it and be partially supported thereby. This arm is preferably slotted, said slot extending laterally into the opening through the arm, and a lock bolt 57 is employed to firmly hold a gear adjusting thimble 58 which is screw threaded into the opening through the arm. A gear supporting sleeve 59 surrounds'the lower end of the saw shaft a2 and fits within the thimble 58 and has a nut 60 abutting against the thimble.

A saw adjusting nut 61 is threaded upon the shaft 42 and has screws 62 extending into an annular slot 63 in the sleeve 59. A saw driving gear 641-. is mounted to slide freely on the sleeve 59, a set screw 66 passins; through the gear hub and enlarged hole in the sleeve holding both in place on the shaft 42.

The saw is adjusted vertically by means of the saw adjusting nut 61. which. being rotated and held against vertical movement by the sleeve 59, causes the shaft to be raised The gear 64 is adjusted to igiee geai "proper'iposition by m'eans'of the-adjusting thimble 58, it being noted that this construction affords a means whereby the saw may be adjusted independently of the gear, so

that when the gear is placed in proper position the saw may then 'be"properly placed independently ofsaid gear. In thus adJusting the gear, when the thimblei58has been described applies to each and all of the saws which may be employed, the two pinions being mounted on adjacent sldes ofthe saw driving gears as shown in Fig. 1. The gears 64 mesh with the pinions on the upper sides thereof, so that the slightmovement ofsaid gears caused by the feed of the saW to en- 2: gage the blanks will not appreciably affect the meshing of the gears.

A rock shaft 68 is mounted in the frame of the machine, a rocking arm '69 being secured thereto. Saw feed arms .70 are secured to the rock shaft 68, there being an arm appurtenant toeach saw employed in the machine, four saws being shown her'ein. A feed adjusting screw 71 is mounted in the top of each arm. to engage .a strut 72 resting within a recess in the head of an abutting .screw 73, the presence of. this strut permitting lateralmovement of the screw7l caused byits movement on the arc of circle. A spring 74 is employed toforce the upper end of'the saw feed arm and the saw slide together to hold the strut 72 in place, and

the screw 73 also looks the base 47 and slide 43 together. One end of a plunger 75 engages the rocking arm 69 and the opposite endof the plunger engages within a recess 76 in a feed actuator 77 pivotally supported upon the frame part 20, there being a number of the recesses '1' 6 located at different distances from the pivot 7 8. By locating the end of the plunger 7 5 in different recesses different degrees of feeding movement of the 'saw may be obtained. The free end of the feed actuator is in engagement with a saw. feed am 79 secured to the cam shaft 18, and-a spring 80 secured to a stationary part ofthe frame at one end and tothe arm 69 holds the parts in position to retainthe plunger 75 in place.

When a rapid feed of the saws 1s given a great pressure is'caused upon. the shaft of 'the carrier disk, and in order that the saws may be rapidly fed with'out'causing undue pressure upon the shaft of the carrier disk I ."pr'ovide means'fOr supporting said diskdur- :ing the cutting operation ofthesaws; This supporting means consists of supporting wedges Slinterposed between! the disks 19 and an abutment 82 forminga part of the bed oftthe'machine,'orrigidly secured there- 'to. A wedge is located upon each side of the disk in: proper. position to resist the force of the cutting action of each saw.

Each wedge is secured to a wedge supporting arm 83 secured to a wedge'rock shaft 84 mounted in the frame parts. A wedgeactuating arm 85 is secured to therock shaft and projectsin position to engage a Wedge oper- "ating cam 86 secured to the cam shaft 18. A single cam may be-employed for operating a number of wedges, in the construction shown herein fourwedges, two appurtenant to each of two disks, being "operated by a single ca m.. This is accomplished by means of connecting .bars 87, each bar connecting twowedges located on the same side of each of the disks 'and,.as-shown in Fig. 3, the bar on the left hand side of the figure connecting the lugs 88 which receive the initial forceand which .is transmitted through intermeshing toothed segments 93 withv the bar for operating the wedges on the right hand side of the disks. I I 1 The cam 86 is formed to operate wedges at the proper time, withdrawing them at the time when the disks are rotated.

Springs 94 are employed to force the wedges into place to support the disks, a. single spring, as shown in Fig. 3, being employed to operate each pair of wedges appurtenant to a single disk, and forcing them into place when the-carrier disks come to a rest and during the time that the saws are cutting the blanks. In the preferred form of con- .struction: and as shown herein the wedges act againstlresilient members or spring holders 96, although this isnot absolutely essential. The disks are thus firmly held during the cutting operation and the saws can be forced inward to their utmost cutting capacity, this greatly increasing the speed with whichthe machine may be operated.

Y A holder 95 may be employed if desired to retain the blanks in the notches in the-disk,

thisholder-extending along the side of the disk, as .shown in Fig. 3. Any suitable means for supplying the blanks to the carrierdisks may be employed, as shown-herein a hopper 89 having a chute 9O beingemployed. As this forms no part of my present invention and maybe of any suitable con- 7 struction further description is omitted herein. 1 r l The spring holders 96 encircle each of the disks. and exert a yielding hold nponthe blanks in the notches, these spring holders being secured at each'endito holder bases 98, shown in Fig. 1 of the drawings but omitted in Fig. 3. It will be noted, as seen in Fig.

3', that the iwedges 81 actagainst these spring holders in backing up the pressure upon the carrier in the operation of the tools, the holders,' upon release of the wedges, retaining just suflicient hold upon the blanks to keep them in place. Extractors 99 project within the grooves 100 in the carrier disk, in the present form these extractors being secured to the side of the chute 90, each blank as it approaches the extractor being forced out of its recess in the edge of the disk.

I claim l. A carrier having means to receive blanks, a single feed device for feeding blanks to the carrier, tools positioned to operate simultaneously each upon a blank different from that operated upon by another tool, and means for operating the carrier to receive a plural number of blanks at each operation of the feeding means.

2. A carrier having means to receive blanks, means for feeding blanks to the carrier, a pair of tools positioned each to operate upon a blank different from that acted on by the other tool, and means for operating the carrier at each step a distance twice that between each of the blank receiving means to receive a plural number of blanks at each operation of the feeding means.

3. A carrier having means to receive blanks, a plural number of tools positioned each to operate upon a blank different from that acted upon by another tool, means for operating the carrier at each step a distance equal to that between each of the blank receiving means multiplied by the number of tools, and a single feed device for delivering blanks into each blank receiving means as it passes the feeding device, whereby a number of blanks equal to the number of tools are placed in the carrier at each movement of feed thereof.

4. A carrier having means spaced to receive blanks, means for feeding blanks to the carrier, a plural number of tools positioned to operate upon blanks in the carrier, means to move the carrier at each single .feeding movement a distance equal to that between a plural number of blank receiving means, and means to cause a dwell in the movement of the carrier between the starting and stopping of each feeding movement thereof.

5. A carrier having means evenly spaced to receive blanks, means for feeding blanks to the carrier, a tool positioned to operate upon a blank in the carrier, means to move the carrier at each single feed movement a distance equal to that between a plural number of blank receiving means, and means to cause a dwell in the movement of the carrier for the feed of a blank to each of the blank receiving means.

6. A carrier having means evenly. spaced to receive blanks, means for feeding blanks to the carrier, a plural number of tools each to work upon a blank different from that acted. 1 011 by another tool, means for moving the carrier at each feeding movement a distance the product of that between the blank receiving means multiplied by the number of tools, and means to cause a dwell of the carrier to receive a blank each time a blank receiving means arrives inposition for that purpose.

7. A carrier having means evenly spaced to receive blanks, means for feeding blanks to the carrier, a plural number of tools each to operate upon a blank different from that acted upon by another tool, means to feed the carrier to. present a new blank to each tool, and a cam shaped to control the movement of the feeding means and cause a dwell thereof between the extremes of each feeding movement to permit the placing of a blank during such dwell.

8 A carrier having means to receive blanks, tools positioned to operate simultaneously each upon a blank different from that operated upon by another tool, means for operating the carrier, and a single feed device for delivering blanks into each blank receiving means as it passes the feeding device, whereby a plural number of blanks are deposited in the carrier at each feed ing movement thereof.

9. A carrier having means to receive a blank, means for feeding blanks to the carrier, a plural number of tools each to operate upon a blank different from that acted upon by another tool, means for imparting feeding movement to the carrier and including a plunger, and a cam against which said plunger rests, said cam being shaped to move the plunger in one direction and having a dwell to permit feed of a blank to the carrier between its extreme feeding movements.

10. A pair of carriers each having means to receive blanks, means for feeding blanks to the carriers, tools to operate upon blanks in each carrier, means for operating each of the carriers, and means for actuating said operating means and including a cross arm arranged to engage each of said operating means.

11. A pair of carriers each having means to receive blanks, means for feeding blanks to the carriers, tools to operate upon blanks in each carrier, means for moving the carriers, a cross arm to operate said moving means in one direction, and a cam connected to operate said cross arm and shaped to govern the movement thereof.

12. A carrier disk arranged to receive blanks, means for feeding blanks to the disk, means for rotating the disk, a tool adapted to operate upon a blank held by the disk, means for supporting the disk at its periphery against the pressure exerted 13. A'carrier disk arranged to receive means for feeding blanks to they blanks, disk, means for rotatlng the d1sk, an abutment for the disk, a Wedge, and means for moving the wedge between the abutment and diskto support the latter during opera-- tion of a tool. 7

14. A carrier disk having meansto receive blanks, means for feeding blanks to the disk, a tool to operate upon blanks in the disk, abutments located upon opposite sidesof the disk, wedges located between the disk and abutments, and means for mov-- disk and abutments to rigidly support the disk during operation of a tool.

15. A carrier disk having meansto receive a blank, means forirotating the carrier disk, means for feeding blanks to the disk, abutments located upon opposite sides of the disk, wedges located between the disk and abutments, means for feeding a tool to operate upon a blank in the disk, and means for moving the wedges into place to support the disk before the beginning of operation of the tool and to withdraw the wedges after the completion of this operation.

16. A carrier disk having means to receive a blank, means for feeding blanks to the disk, a tool to work upon a blank in the disk, abutments located on opposite sides of the disk, wedges located between said abutments and disk, supports for the wedges operatively connected to simultaneously move the wedges between the disk and abutments, and a cam operating upon one of the supports to actuate both wedges.

17. A carrier disk having means to receive a blank, means for feeding blanks to the disk, a tool to operate upon blanks in the disk, abutments located at opposite edges of the disk, wedge rock shafts located on opposite sides of the disk and having wedge supporting arms projecting toward each other, wedges supported on said arms and located between the disk and abutments, connection between said arms to operate them to force the wedges simultaneously between the abutments and disk, and means for operating said shafts.

18. A pair of carrier disks each having means to receive blanks, means for feeding blanks to the disks, a tool to operate upon the blanks in each disk, abutments located at opposite sides of each disk, wedges located on opposite sides of each disk and in the space between the disk and the abutments, connections between all of the wedges to simultaneously move them into place to the opposite side of said disk.

mg the wedges into the space between the support the disks and to withdraw them, and a single means for operating said Wedges.

. 19. A pair of carrier disks each'having means to receive blanks, means forv feeding blanks to the disks, means for rotating the disks, .abutments located at opposite edges of each disk, wedge rock shafts located on the same side of each disk, wedges supported by said shafts,-a' connection between each of said shafts to move them in the same direction, wedge rock shafts supported on the opposite side of each of said disks, wedges supported byeach of said latter rock shafts,

a connection between each of the last mentloned rock ,shafts to: rotate them simultaneously in the same direction, a connection between two of the rock shafts located ondifferent sides of the two disks whereby all of the wedges are simultaneously moved into place to support, each of the disks,.andmeans for acting upon one of therockshafts to, operate all. p I I .20. A pair of carrier disks each having means to receive blanks,means forfeeding blanks to the disks, a' tool to operate upon the blanks in each disk, an abutment lo-" cated at the periphery ofieachzdisk, a wedge located to engage each disk in the space between it and said abutment, connections between said wedges to simultaneously move them into place to support the disks and to withdraw them, and a single means for operating said wedges.

21. A carrier disk having recesses for blanks in its edge, means for feeding-blanks to the disk, means for rotating the disk, tools to work upon blanks held in the disk, an abutment, a wedge located in the space between the abutment and edge of the disk, a yielding member interposed between the wedge and the disk, and means for moving the wedge against the disk to support the latter.

22. A carrier disk having recesses for blanks, means for feeding blanks to said recesses, means for rotating the disk, tools to operate upon blanks in the disk, a holder including a spring band encircling the disk to exert a yielding hold upon blanks in said recesses, an abutment, a wedge located'in the space between the abutment and said holder, and means for moving the wedge into said space and against said holder to support the disk. 7 a i 23. A carrier disk having means to receive blanks, means for feeding blanks to the disk, means for rotating the disk, a saw shaft ositioned to support a saw for operation on the blanks in the disk, a gear secured to said shaft, means for driving said gear, means for adjusting the shaft and saw longitudinally of the shaft, and means for in-' dependently adjusting the gear in the same direction.

24:. A carrier disk having means to receive blanks, a saw shaft mounted on a sliding support, the support, a saw secured to one end of the shaft, a gear secured to the opposite end of the shaft, means for sliding the support, and a driving gear in mesh with the gear on said shaft, the latter having feeding movement independently of said driving gear.

25. A carrier disk having means to receive blanks, a sliding support, means for sliding the support, a shaft mounted in said support, a saw secured to one end of the shaft, a gear secured to the opposite end of the shaft, and a driving gear meshing with said gear on the shaft, the latter moving tangentially of the former in the feeding operation of the saw.

26. A carrier disk, a feeding slide, a shaft supported on the slide, a saw secured to the shaft, means for rotating the shaft, a pivoted lever, a cam for operating said lever, and a connection between the slide and pivoted lever including a rod having its ends loosely engaging recesses in its supporting members.

Copies of this patent may be obtained for 27. A carrier disk, a feed slide, a shaft mounted on the slide, a saw secured to the shaft, means for rotating the shaft, a rock shaft, a rocking arm pivotally connected with the slide, a pivoted lever, means for moving the lever on its pivot, and a rod connecting said arm and lever and having means for engagement therewith at variable distances from a pivot whereby a variation of the feed of the saW is obtained.

28. A feeding device for slotting machines including a carrier having means spaced to receive blanks, means for feeding blanks to the carrier, means to move the carrier ateach single feeding movement a distance equal to that between a plural number of blank receiving means, and means to cause a dwell in the movement of the carrier between the starting and stopping of each feeding movement thereof.

JAMES MONKS.

Witnesses:

ARTHUR B. JENKINS, EVA L. STOUGHTON.

five cents each, by addressing the Commissioner of Patents, Washington, D. 0.