US586922A

US586922A - Island

Info

Publication number: US586922A
Authority: US
Publication date: 1897-07-20
Anticipated expiration: 1914-07-20

Description

( MOdBL) 7 Sheets-Sheet 1.

S. L. WORSLEY. METAL SCREW MACHINE.

No. 586,922. Patented July 20, 1897.

(No Model.) I '1 Sheets-Sheet 2. S. L. W'ORSLEY.

METAL SCREW MACHINE.

No. 586,922. PatentedJuly 20, 1897 (No Model.) 7 Sheets Sheet 5. -S. L. WORSLEY.

METAL SCREW MACHINE.

i lam U (No Model.) 7 SheetsSheet 6. S. L; WORSLEY.

METAL SCREW MACHINE.

Patented July 20, 1897.

Wain 6.5.166.

V I (N0 M01181!) 7 Sheets-Sheet 7.

S. L. WORSLEY.

METAL SCREW MACHINE.

No. 586,922 I I Patented July 20.- 1897.

Q a A r M i I i x 2 5 95 E Q 'h i II: I L.

' fiiih 1 jaw z UNITED STATES PATENT OFFI E.

SAMUEL WORsLEY, .oF TAuN'roN, MASSACHUSETTS, AssIcNoR TOTHE BROWN a Sl-IARPE MANUFACTURING COMPANY, or PROVIDENCE,

RHODE ISLAND.

"M ETAL-SCREW- MACHINE.

SPECIFICATION forming part Of Letters Patent NC). 586,922, dated. July 20, 1897.

l I Application filed November 13, 1896. Serial No. 611,970. (No model.)

To all whom, it may concern:

Be it known that I, SAMUEL L. WoRsLEY, of Taunton, in the county of Bristol and State of Massachusetts, have invented certain new and useful Improvements in Metal-Screw Machines; and I do hereby declare the following specification, taken in connection with the accompanying drawings, forming part of the same,to' be a full, clear, and exact description thereof.

The present invention relates to that class of machines in which a rod of stock is intermittently fed forward for. the prescribed distance required to form a screw or other art-icle and is held in the jaws of a revolving- 424,527, granted to me April 1, 1890, and em-- bodies substantially the same devices for feed- 'ing and holding the stock and for effecting the reversal of the movement of the spindle. To adapt the machine of said patent for m aking screws of different lengths and at the same time always have the,tools in the tnr Tet-head as near the end of the rod of stock as possible, so that there may be no loss of time in bringing said tools up tothe work, the head-stock'of said machine is mounted to slide on ways, so that said head-stock and the parts carried thereby may be adjusted lengthwise of the machine. This adjustment of the head-stock necessitates a corresponding change in the position of the cams for operating the jaws of the chuck and effecting the feed of the stock and also an adjustment of the cams for operating the cross-slide and of the devices for effecting the change of the motionof the spindle and the cams foroperating the same, thus causing inconvenience and loss of time in making said adjustments and a corresponding reduction in the chiciency of the machine. It is the object of the present invention to overcome the above objections and provide Figs. 4 and 5 are end elevations.

an automatic machine in which the relative positions of the turret-head and head-stock may be quickly and conveniently adjusted in making articles of different lengths, and this is accomplished by mountingthe turret-slide upon anjadjustable or sliding bed, so that said bed may be adjusted with relation to the head-stock, which is fixed to the frame of the machine and always remains in the same position.

A further object of the invention is to provide a tool-holder for a circular tool so constructed that the tool may be quickly and accurately adjusted and when adjusted may be securely held in position.

'In the accompanying drawings is shown a machine embodying the present improvements in their preferred form.

Figure 1 is a plan View of such machine. Fig. 2 is a rear elevation with the frame partially broken away. Fig. 3 is a front elevation with the frame partially broken away. Figs. 6 and 7 are detail views of the mechanism for controlling the cam-shaft. view on line 00 cc, Fig. 2. Fig. 9 is a sectional View on line y y, Fig. 2. Fig-10 is a sectional view, partly in elevation, on line 2' c, Fig. 2. Figs. 11 and 12 are detail views of Fig. 8 is a sectional the means for controlling the operation of the turret-head driver. Fig. 13 is a detail sectional view. Figs. 14 and 15 are views of a novel form of tool-holder.

The machine illustrated is provided with a and 7 are alternately clutched to the spindle 9 by the collar 12, operated through the lever 13 by spring-plungers controlledby cams on the front shaft 14, as clearly shown in the patent referred to. The feeding-tube 15 is provided with two flanges 16, betweenwhich fits an arm or projection 17, formed on a slide 18, mounted to slide on suitable ways A second slide is mounted to slide on ways 21 and is reciproeated by a cam 22, secured to shaft 4, which engages a pin 23, projecting from said slide. The slide 18 is provided with a stationary shoulder or lug 25, between which lug and a lug 24 plays an arm 26, secured to slide 20. The lug 25 may be adjusted without stopping the machine by means of the screw-rod 27. By adjusting the lug 25 the amount of lost motion between the slides 20 and 1S, and consequentlythe amount of feed, is regulated. In order that the automatic feed may be conveniently thrown out of action when desired, it is preferred to pivot the arm 26 to the slide 20, so that it may be turned back,.as shown in Fig. 5, and will not engage the lugs 24 25. The shaft 4 makes one revolution after the completion of each screw or other article in order to operate the jaws of the chuck and to feed forward the stock, and said shaft is thus operated by the following mechanism, Figs. 2, 6, and 7: Loosely mounted on the shaft 4 is a spur-gear 28, to which is secured one member 20 of a clutch 30. .The gear 28 meshes with apinion 31, secured to a gear 32, which in turn meshes with and is driven by a pinion secured to the prime-motor shaft 34. The shaft 34 is revolved continuously by means of a pulley 35, secured thereto, and serves through the gearing described to drive the gear 28 and clutch memberQEl continuously. The other member 35 of the clutch is keyed to slide upon the shaft 4 and is pressed toward the memberfZO by a spring 36. The member is provided with a hub, in which is formed a groove 39, and upon one side of said groove is formed a cam The end of a spring-pressed slide 38 normally projects into the groove 39 and acts against the cam 37 to hold the clutch member 35 out of engagement with the member 29 against the tension of the spring The slide 38 is mounted in suitable bearings secured to the frame of the machine and is engaged by one end of a bell-crank lever 40, pivoted at 41. is arranged in the path of a tappet-arm 42, secured to the front shaft 14. As the shaft 14 revolves the arm 42 engages the end of the lever 40 and rocks said lever, thus drawing back the slide 38 and releasing the clutch member 85, which is forced into engagement with the member 29, the slide 38 being projected into the groove 39 immediately the arm 42 has passed lever 40. The shaft 4 is now driven by the clutch 30 until the cam 37 engages the end of slide 38 and forces the member back to its normal position. The shaft 4 may be provided with a notched disk, which is engaged by a spring retaining-pin to prevent overrunning of the shaft and to hold said shaft in position until the slide 38 is operated to release the clutch.

The turrethead 43 is mounted in suitable bearings formed in the turret-slide 44, which The other arm of the lever 40 slide is carried on ways 45, formed on the bed 46. The bed 46 is mounted on the frame and is clamped in position by bolts 47, the heads of which engage undercutgrooves 48, formed in the frame. The bed 46 may be moved to or from the chuck to change the relative position of the turret-head in making articles of different lengths, so that said head may be close to the work at the beginning of its for ward movement, and no time be lost in bringing the tools carried by said head up to the work, and when the bed has been properly adjusted it may be firmly clamped in position by tightening the nuts on the ends of bolts 47. A screw-rod 48 is mounted in a lug 4.) upon the frame and engages screw-threads formed in a lug 50 on the bed 46 and serves to adjust said bed, Fig. 13. The turrethead may be intermittently revolved to bring the tools carried thereby into operative position, and the turret-slide may be reciprocated by any suitable mechanism so constructed and arranged as to enable the bed 46 to be adjusted. Itis preferred, however, to mount the mechanisms for operating the turret-head and turret-slide upon the adjustable bed and to so connect said mechanisms with the driving-shafts or driving-gearing that the adjusting of said bed will not interfere with the proper operation of said mechanisms, and in the drawings is shown the preferred form of such mechanisms so mounted and connected.

Splined upon the shaft 34, so as to revolve therewith but be capable of longitudinal movement thereon, is a pinion 51, engaging and driving a gear 52, mounted in a hanger 53, secured to the bed 46. The pinion 51. is provided with flanges 51, which project on opposite sides of the gear 52, so that said pinion will be moved upon its shaft when the bed 46 is adjusted and will always be in engagement with said gear. The gear 52 carries a beveled pinion 54, which engages and drives a beveled gear 55, loosely mounted on a shaft 50, mounted in bushings 57, carried by the plates 58 50, depending from the bed 46, Figs. 2 and 8. A clutch member is secured to the gear 55 and is adapted to engage a clutch member (31, secured to the shaft 56, said clutch members forminga driver for operating the turret-head, as will more fully appear. Secured to the shaft 56 is a pinion (32, which engages a pinion 63, mounted upon a stud 64, carried by the plates 58 5!), and engaging a pinion 65, secured to the shaft 06. The outer end of shaft (36 carries a toothed segment '71, which is adapted to engage a gear 67 on the end of the turret-head shaft and turn said shaftapartial revolution. The end of the shaft 66 also carries a disk 08, which is provided with a cam on its front face (not shown) which engages a lever 69 at the proper time and operates a locking-bolt 70, as is more clearly illustrated and described in the patent hereinbefore referred to. The

clutch member 61 is secured to the shaft 56 by means of a pin '72, which passes through and 12.

the path of cam 76.

slots 73, formed in said shaft, and through a rod or plunger 74, mounted within said shaft.

cured to the outer end of the rod 74, which cam is engagedbya movable abutment. In

the form shown the abutment is formed by the end of a slide 78, which is mounted in suitable guides secured to the plate 59 and forced forward by a spring 79, Figs. 3, 11, A lug 8 projects from the slide 78 and is connected by a link 81 to one arm of a bell-crank lever 82, the other arm of which is in the path of a series of tappets 84, secured to a disk 83, which is secured to the shaft 94,.

said shaft being continuously revolved, as

.Wlll IIlOlG fully appear.

NVhen one of the tappets engages the arm of the lever 82, said lever is rocked, thus withdrawing the slide 78 from engagement with the cam 76 and rendering the driver formed As soon as the tappet 84 has passed the arm of lever 82 the spring 79 returns the slide 78 into lVhen the driver becomes operative, the shaft 56 is rotated and through the gearing described rotates the turret-head a partial revolution to bring a new tool into operative position. When theshaft "56'has made a complete revolution, the cam 76 acts against the abutment 78 and throws the driver out of operation, at which time a spring-catch 85, Fig. 2, engages a notch in the disk 86, secured to the gear 62, and serves to prevent overrunnin'g of the shaft 56 and holds the said shaft and connected gearing in position until the driver is again thrown into operation. The number and location of the tappets 84 will depend upon the number of tools used and the character of the work to be performed, and said tappets are therevfore secured to the disk 83 by means ofbolts passing, into the annular undercut groove 87,

so that said tappets may be easily and quickly adjusted or removed.

Theturret-slide 44 is provided with a rack 88, which is engaged by a toothed segment 89, formed on one end of a lever 90, pivoted on a stud 9l, mounted in the plates 58 and 59, Figs. 10 and 13. The other end of the lever p :90 is bifurcated and carries a roll 92, which I gear 100.

The slide44 is forced forward by the cam 93 and is returned by a spring 101, which is located in a recess in the bed 45 and engages a lug 102, depending from the slide 44, Fig. 1.

If the springlOl shouldfail to return the slide, a cam 102, secured to the gear 63, will engage a roll 103 on lever and return said slide to its rearward position.

Secured to the end of shaft 94 is a beveled pinion 104,which engages a pinion 105, mounted in a bracket 106, secured to plate.59, Figs. 3 and 10.

107, so that said gear serves torevolve said shaft while being free to slide thereon when the bed 45 is adjusted.

The machine illustrated is provided with two

cross-slides

107 and 108, mounted to slide on suitable Ways and provided with undercut grooves 109 for the attachment thereto of suitable tool-supports. These slides are provided with adjustable racks 110, which are engaged by toothed segments on the levers 111 and 112, said levers being operated to advance the. slides by means of cams 113 114, secured to the disk 115 on the shaft 14, Figs. 1 and 9. The slides are returned by springs 116, which engage arms 117, projecting laterally from said slides.

Any suitable form' of tool-holder may be secured upon the cross-slides, but it is preferred to use the form of holder shown in Figs. 9, 14, and 15, which holder forms one of the features of the present improvements. As

shown in the above-mentioned figures, the

The shaft 14 passes through said pinion 105 and is connected thereto by a spline tool 120, which in the form shown is a circular tool, is secured upon a support consisting of a stud 121 by means of a key 122. stud 121 passes through a boss 123 upon the standard 124, and an arm 126v engages said stud beyond said boss. A nut 127 and washer 128 serve to hold the parts in proper relation to each other. A screw-rod135 is pivoted to the end of arm 126 and is engaged by an in ternally-screw-threaded sleeve 129, mounted to turn in the end of a stud 130, pivoted in the standard 124 andheld therein by nut 131 and washer 132. The sleeve 129 is reduced beyond the stud 130 and is provided with an external screw-thread. A milled nut 133 engages the screw-thread upon the sleeve 129 and is secured thereon by .means of a pin or otherwise, so that the said'sleeve will turn preferred to connect said arm to the stud 121 by means of a series of duplicate engaging surfaces, so that the relative positions of the stud and arm may be readily changed as the web 135 of the cutter is ground away in sharpening, and thus the cutter may be used until substantially the entire web is ground away.

In the form shown the end of stud 121 is fluted to form the engaging surfaces 125, which are engaged by corresponding faces in arm 126.

The a hat I claim as my invention, and desire to secure by Letters Patent, is-

1. The combination with the turret-slide, of an adjustable bed on which said slide is mounted, and automatic mechanism for operating said slide, substantially as described.

2. The combination with the turret-slide, of an adjustable bed on which said slide is mounted, and automatic mechanism carried by said bed for operating said slide, substantially as described.

3. The combination with the turret-head, and turret-slide, of an adjustable bed on which said turret-slide is mounted, and automatic mechanism for operating the turret-head and turret-slide, substantially as described.

4:. The combination with the turret-head and turret-slide, of an adjustable bed'on which said turret-slide is mounted, and mechanism for operating said turret-head and turretslide carried by said adjustable bed, substantially as described.

5. The combination with the turret-slide, of an adjustable bed on which said slide is mounted, mechanism for operating said slide, a shaft mounted in stationary bearings and so connected with said mechanism that the adjustment of said bed will not interfere with the operation of said mechanism, substantially as described.

6. The combination with the turret-slide, of an adjustable bed on which said slide is mounted, mechanism carried by said bed for operating said slide, a shaft mounted in stationary bearings and gearing between said shaft and said mechanism, substantially as described.

7. The combination with the turret-head and turret-slide, of an adjustable bed on which said slide is mounted, mechanism carried by said bed for operating said turret-head, a driving-shaft mounted in stationarybearin gs, and gearing connecting said shaft and said mechanism, substantially as described.

8. The combination with the turrethead and turret-slide, of an adjustable bed on which said turret-slide is mounted, mechanism for operatingsaid turret-head and turretslide carried by said adjustable bed, a driv-- ing-shaft mounted in stationary bearings and connected to drive said mechanisms, substantially as described.

9. The combination with the turret-head and turret-slide, of an adjustable bed on which said slide is mounted, a driver carried by said bed for operating said turret, and means for controlling the operation of said driver, substantially as described.

10. The combination with the turret-head and turret-slide, of an adjustable bed on which said slide is mounted, a driver carried by said bed for operating said turret-head, and means also carried by said bed for controlling the operation of said driver, substantially as described.

11. The combination with the turret-head, of a driver for operating said head, and means comprising a series of adjustable tappets for controlling the operation of said driver, sub stantially as described.

12. The combination with the turret-head, of a driver for operating said head, means for holding said driver out of operation, and a tappet for operating said holding means, substantially as described.

13. The combination with the turret-head, of a driver for operating said head, means for holding said driver out of operation, and a series of tappets for operating said holding means, substantially as described.

1 L The combination with a driver, of means for holding said driver out of operation, and

a revolving tappet for rendering said holding means inoperative, substantially as described.

15. The combination with adriver, of a cam connected with said driver, an abutment in the path of said cam for holding the driver out of operation, and a revolving tappet for rendering said abutment inoperative, substantially as described.

16. The combination with the-feeding-tube,

of lugs connected with said tube, and a reciprocatin g slide provided with a pivoted arm for engaging said lugs, substantially as described.

17. The combination with a standard, a

tool-support mounted to rotate in said standard and provided with a series of duplicate engaging faces, an arm engaging said faces, and means for adjusting said arm, substantially as described.

18. The combination with a standard, a

tool-support mounted to rotate in said standard and provided with a series of duplicate engaging faces, an arm engaging said faces, and means for adjusting said arm andholding said support in its adjusted position, substantially as described.

19. The combination of a support for a circular tool provided with a plurality of duplicate engaging surfaces, an arm engaging said surfaces, and means for adjusting said arm, substantially as described.

20. The combination of a stud for supporting a circular tool, an arm secured to said stud, and means for adjusting said arm, substantially as described.

21. The-combination of a stud for supporting a circular tool, an arm secured to said stud, and a screw-threaded rod for adjusting said arm, substantially as described.

22. The combination of a stud for supporting a circular tool, an arm secured to said stud, a screw-threaded rod connected with said arm, and a screw-threaded sleeve engaging said rod, substantially as described.

SAMUEL L. YVORSLEY. \Vitnesses:

W. H. THURs'roN, R. A. BATES.