US1284969A - Die cutting and forming machine. - Google Patents

Description

N. H. ANDERSON. DIE cumN AND FORMING MACHINE.

` PFLCATION FILED N. 3|' 1917. n 1,284,969., Patented Nov. 19, HHS..

y 3 SHEETs-'SHEEY l.

N. H. ANDERSON.

DIE CUTTING` AND FORMING MACHmE.

Patented'Nov. 19, 1918.

3 SHEETS-SHEET Zw APPLICATION fILED JAH. 3l. 1911.

N. N. ANDERSON. ma CUTTING AND'FORMING MAcHmE.

APPLICATIGN FILED JAN. 3l. |911. *y l ,284,969. Patented Nov. 19, 1918.A

3 SHEETS-sweeps.

"r me.

DIE CUTTING AND FORMING MACHINE.

Application filed` January 31, 1917.

To all whom t may concern:

Be it known that I, NILs H. ANDERSON, acitizen of the United States, and resident of Bridgeport, in the county of Faireld and State of Connecticut, have invented certain new and useful Iimno-venients in Die Cutting and Forming Machines, of which the following is a specilication.

My invention relates to new and useful improvements in die forming and cutting machines such as employ rotary cutters of relatively small diameter.

r he object of the invention is to improve upon machines of this type by embodyingy means for securing a variable speed in order that cutters of different diameters may be used to the best advantage, as it is obvious that a cutter of small diameter should be driven at a much higher rate of speed per minute than a large cutter, in order to secure approximately the same surface speed on the small cutters as that used ou cutters of large diameters. and further to generally improve and simplify the machine as will later be more fully explained.

1.Vith these and other objects in view the invention resides and consists in the construction and novel combination and arrangement of parts hereinafter more fully described, illustrated in the accompanying drawings, and pointed out in the claims hereto appended, it being understood that various changes in the form, proportion, size and minor details of construction within the scope of the claims may be resorted to without departure from the spirit or sacrificing any of the advantages of the invention.

Similar characters of reference denote like or corresponding parts throughout the several figures of the accompanying drawings forming a part of this specification, and upon which,

Figure 1 shows a plan view of my improved form of machine complete, including motor and switch for operating the same.

Fig. 2 is a side elevation of the machine shown in Fig. 1 and Fig. 3 is a front elevation of the same.

Referring in detail to the characters of reference marked upon the drawings 5 represents a bed upon the top side of which are formed two standards 6-6. A hanger 7 is pivoted intermediate of these standards upon alined screws 8 8 mounted in the,

upper end portions of the standards. A

Specification of Letters Patent.

Patented Nov. 19, 1918.

Serial No. 145,660.

motor 9 is mounted centrally upon the hanger and secured to the base thereof by means of screws 10 and as will be noted is so positioned that its center alines with the axis upon which the hanger swings. One of these standards is provided with an extension 6a in which is formed a slot 11. This extension is in line with asupport 12` o f one of the arms of `thehanger and in which is formed a tapped hole to receive the clamping screw 13 that passes through the slot 11 of the extension 6E before mentioned and whereby the hanger and the motor carried thereby are secured in various positions after being adjusted.

The binding posts lt of the motor, as will be seen, are connected by wires 15 with a switch 16 including a push button 17, for the purpose of controlling the current to the motor and whereby the latter is started and stopped as occasion may require.

Upon thel forward end of the armature shaft 18 of'the'mo'tor is mounted a large spherical faced disk 19 which serves as the driving member of the motorV and whereby the 'power derived thereby is transmitted'to the other and driven parts of the machine.

A column 2O is also formed integral with the base and is located forward of the standards before mentioned.- The inner side of this column is finished to form ways 21 upon which a bracket 22 is slidably mounted and adapted to be raised and lowered by hand and secured in such adjusted positions by means of a shaft 23 having an eccentric thereon upon whichfis fitted one end portion of a stud 211, thehead of said stud being fitted inf a vertical T slot of the column.

'The handle upon the lower end of this shaft serves as a means for turning the shaft sufficient to move the stud longitudinally for the purpose of tightening or loosening its head against the inner face of the slot in which it is fitted. V'Ihisloracket serves to support the operating spindle and Yincludes alined bearings 25-25 thatcarry'bushings 26-26 in which the spindle-27 is rotatably mounted. A friction member 28 is secured upon this spindle and is engaged by the spherical driven disk 19 upon the motor shaft. The upper end of this spindle is provided with a chuck 29 inV which the cutting tool 30 is detachably secured by `meansof the operating wheel 31 mounted upon the lower end of the spindle. Atiltable table 32 is pvoted at 33 to the column 20 and is provided with a hole 34 therethrough to accommodate the cutting tool before mentioned.

A post 35 is also secured to the base and extends up forward of the driving disk and is provided upon its upper end with an adjusting vscrew 36 upon which the forward end ent forms of tools, yet it is particularly well adapted ,for cutting out and facing up dies and wherein a special style of spiral form of cuttter is used. These cutters while slightly pointed upon their upper end yet have their cutting edges upon the sides thereby cutting the side surfaces of the work when pressed thereagainst. 'If the face of the table is set at a true right angle with respect to the axis of the cutting tool the surface produced byV `vthe v cutter will likewise be formed at an accurate vright angleto the face of the Work. I The face of the table may be set at a right angle to the axis of the cutter which will insure the forming of an opening in the die, Vhav'ingparallel sides. On the other hand, if itis desirablefto makethe.

sides slightly ltapered for clearance, a taperedcutter must be used having the desired Y amount of clearance for the particular die required. Anydegree of clearance can be formedy in this way and the same clearance eected upon all sides of the die soasv to insure clean cutting vandl the stripping of the punched parts from the sheet metal stock.

F rom the foregoing description it will be noted that the motor and its driving disk member can readily be set to drive the spindles at variable speeds, as for instance, if the motor is tilted slightly morel thanwhat is shown in the Vdrawing the spindle would obviously be driven at' a correspondingly higher Irate of speed, since the smaller disk would be engaging the larger' diameter of the cone, while upon the other hand, if the motor were tilted and set to-bring the armature shaft nearer `to a horizontal position andthe center of the driving cone nearer to the .driven disk, 'the rate of yspeed would be materially reduced.v This, as before sug. gested, is with a view of increasingl or delcreasing the speed of the cuttingtool as may be required according tothe sizes of the tools employed. The smaller the cutter the higher rate of speed desired, while the larger the cutter the lower rate of speed required in order to obtain an approximate uniform 'pel ripheral surface speed of all size cutters.

Having thus ldescribed my invention what I claim .and desire to secure by Letters Patent, 'isz- 1. In a die forming and cutting machine of the class described, the combination with a base having a column thereon, a spindle carried by the column, a friction member secured to the spindle, a supporting post mounted upon the base, a table pivoted to the column :and supported upon thepost, a motor mounted upon the base, a relatively large spherical disk mounted upon the motor spindle and engaging the friction member of the operating spindle, and means for adjusting the motor and disk to set the axis of the la-tterftoward and from the friction member to change the speed of rotations of the spindle.

2. in a die forming and cutting machine of the class described, the combination with a base Vhaving a column thereon, lof a bearing bracket adjustably mounted upon the column, a spindle mounted in the bearings, a friction member secured to the spindle, a supporting post mounted upon the base, a table pivotcd'to they column and supported upon the post, a motor'mcunted upon the base, a relatively large spherical disk mounted upon the motor spindle and engaging the friction mem'ber of the operating spindle,and means for adjusting the motor and disk to set the center' of the latter towardv and from the friction member to change the speed of rotations of the spindle.

3. In a die cutting and forming machine of the class described, the combination with a base having a column thereon, of a bracket ladjustably mounted upon the column, a spindle mounted in bearings of the bracket, a friction member secured to the spindle, a supporting post mounted upon thebase, a

table pivoted to the column and supported motor and disk to set the center of the latter to and from the friction member and to change the speed of rotations of the spindle.

Signed at Bridgeport in the county of Fairfield and State of Connecticut this`25th day of January, A. D., 1917.

` NILS H. ANDERSON. Witnesses:

C. M. NEWMAN, RUTH M. KoGER.

vCopies of tliis patentd may vbe obtained for tive cents each, by addressing the Commissioner otatents,

, v Washington, 13.6.

Images