US1203171A

US1203171A - Tool-operating machine.

Info

Publication number: US1203171A
Authority: US
Inventors: August L Bechtel
Original assignee: CLEVELAND PUNCH AND SHEAR WORKS
Current assignee: CLEVELAND PUNCH AND SHEAR WORKS
Priority date: 1916-04-08
Filing date: 1916-04-08
Publication date: 1916-10-31
Anticipated expiration: 1933-10-31

Description

A. L. BECHTE L.

b TOOL OPERATING MACHINE.

APPILICATKON FlLED APR. 84 1916.

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Patented Oct. 31,1916.

- 2 SHEETS SHEET I A L. BECHT EL. TOOL OPERATING MACHINE. 'APPucAT|oN FILED APR. a, 1916.

1,208,171. Patented Oct-.81 6',

2 SHEETS-SHEE U I ED STATES PATENT ormon AUG UST I1. BECHTEL, 0F JLEVELAND, QHIO, ASSIGNOR TO THE CLEVELAND PUNCH AND SHEAR WORKS, CLEVELAND, OHIO, A CORPORATION OHIO.

roon-ornnarme MACHINE.

Toiall wiwm it mag/concern f -Be it known that 1, AUGUST L, Bnonrnn, a citizen of the United States, resldmg at Cleveland, in the county of Guyahoga and State of Ohio, have invented a certain new and useful Improvement in Tool-Qperating .Machines, of which the following 1s a full,

sea-punch) is carried by a reciprocable 'fhead, and is moved'thereby into operative ifielationjto the mark, and has for its general 15.

' actor wherein the tool will be automatically disconnected from the head after the operatin .rnovement.

object to provide a machine of this char n 'the embodiment disclosed herein, the invention is appliedto a punch press and is employed for the purpose of automatically' is'connecting the punch post or holder from the head as soon as the latter hasmoved a predetermined distance on the return stroke, thus enabling the automatlc disconnection to be accomplished at the conclusion of the stripping movement, the

; her or frame on which the work is support- ,ed, a head movable toward and from this fixed member or frame, said head having a guideway therein for a punch holder or post, an abutment, shown specifically a gag movable across said guidcway to render the punch operative or inoperativmas occasion may require, and automatically-operating means for engaging the punch post or holder and adapted to move it a predetermil'ied distance away from the work, for stripping pfrhposes, and to release it after such stripping movement. I

In the drawings, Figure 1 represents a front elic tation of the fixed member and part of the movable member or head of a punch ress having my invention applied thereto; ig. 2 an enlarged detail, partly in section and partly in elevation, of the parts shown in the preceding figure, the punch post or holder being shown in its elevated position;

Application filed April s, 1916. Serial No. 89,884.

Specification of Letters Patent.

Patented Oct. 31, 1916.

Fig. 3 a vertical sectional view corresponding substantially to the line 33 of Fig. 2,

"the punch, with its holder or post and the construction, the punch being connected in the usual manner to the post The post 6 is reciprocably mounted. in a guideway provided within the head. This guidewayis preferably provided ina Wedgeshaped or dove-tailed block 7 fitting in a correspondingly-shaped transversely of the head. The block 7 is provided with a bore which substantially.

recess extending I sizes and guides the post 6, theupperend i of the post projecting intoan enlarged opcning 8 extending transversely of the head and provided above the post with a guideway wherein is slidably mounted the gag 9 having the usual operating handle 10. post 6 is provided with a key slot 11 extending substantially parallel with the axis thereof and which receives the inner end 12 of a screw 13, thereby to prevent the post from turning and in eiicct providing a sliding keyway between the post and the block 7. The block 7 constitutes a holder whereby the punch and its post may be conveniently applied to and removed from the head.

14- denotes a plunger whichis movable transversely with respect to the head and punch holder and which is slidable within said head and the holder, the head and the holder being provided with registering bores. The bore in the head is enlarged at its outer portion, as indicated at 15, whereby it may receive therewithin a sleeve 16 having its outer end projected through the head andprovidcd with a cap or closure 17. The sleeve is conveniently secured in place by means of an externally threaded sleeve 18 having an operating head 19 adapted to receive a wrench, the inner or threaded end The v v of the sleeve being adapted to engagea same in the position shown in Fig. 2, while the weaker spring 21, interposed between the cap 17 and the plunger 14, presses the latter inwardly or toward the post 6. I The post is provided with a vertical slot 22 which is adapted to receive therewithin the adja cent end of the plunger when the plunger and the slot are in register. A pin 23 carried by the plunger 14 enters a slot 24 carried by the sleeve 16 providing a lost-motion connection between these parts. The outer end or cap of the sleeve is provided with a beveled. or ham face 25 which gooperates with a beveled or cam face 26 on -a block 27 carried by the head. This block 27 is adjustable in the direction of the length of the punch post, being secured by means of bolts 28 extending through slots 29 in an angle plate 30 which is secure to a fixed part of the press, as by'means of screws 31.

In the operation of ordinary punch presses, the plate to be punched is provided with small center-punch marks indicating the centers of the holes to be punched by the press. It takes considerable time to position the plates so that these marks shall be .the head is reciprocated and the punch 4 is forced through the plate by the gag.

Duringthis operation, the partswill be in substantially the positions shown in Fig. 4;. that is to say, the head of the punch post is engaged by the gag and, when the post is in this position, the upper end of the slot 22 1s brought into register with the adjacent end of the plunger 14. This, however, because of the engagement of the pin 23 with the end of the slot 24, could not enter the slot 22 but for the fact that the cam 26 on the block 27 has meanwhile engaged and pushed inwardly the sleeve 16, which will move the slot 24 toward the post and will permit the spring 21 to thrust the plunger 14 into the slot 22. It will be seen that the movement of the punch on the down stroke of the head is accomplished through the engagement of the upper end of the punch post with the gag 9. On the return stroke of the head, the punch is lifted through the engagement of the plunger 14 with the abutment formed clears the cam block 27, at which time the at the top of the slot 22 but is lifted" only until such time as the sleeve cap or head 17 spring 20--being stronger than the spring gaged from the head.

21-thrusts the sleeve outwardly and with it the plunger 14, through the engagement of the pin 23 with the inner end of the slot 24, whereupon the parts assume the positions shown in Fig. 2-with the punch resting on the plate 3. p v

In practice, the cam plate 27 will generally be so set as to permit the point of the punch 4 to clear the plate 3 about one-sixteenth inch before the post is disconnected from the head. On the completion of the punching stroke, the operator withdraws the gag 9. The driving connection between the head and the punch post is then broken and the punch will rest upon the plate and there will be no further punching stroke until the gag is reinserted. Until such time the head merely reciprocates about the post. On the down stroke of the head, the plunger 14 will necessarily enter the slot 22 and, on the up; stroke of the head, the parts will preferably be arranged so that the plunger 14 will engage the top of the slot 22 and lift the punch-say about one-sixteenth inch above the workbefore the cam head of the sleeve rides off the block 27 when this happens, the plunger will be moved out of the slot 22 in the manner before described, and the punch will drop upon the work. The gag I will remain out of operative relation to the top or head of the punch post until such times as the plate has been centered beneath the punch. It will then be reinserted and the plate will be punched in the manner describedhereinbefore. If desired, provision may be made'for withdrawing the gag automatically at the end of the punching stroke and for reinserting it at any desired period thereaftersay on every alternate, or every third, stroke of the head. Furthermore, this gag controlling means may be made adjustable so as to vary the time of its inserti on in accordance with the circumstances of any particular case.

It will be seen that, in the operation of the punchpress herein disclosed, the head will reciprocate about the punch post or holder until such time as the gag maybe inserted, the parts being preferably arranged so that the punch will be given a slight upward or stripping movement on each stroke of the head away from the work; also that, when the gag has been inserted, the punch will function in the ordinary manner to punch the work, but that means are-provided whereby the punch will be moved in the reverse direction a sufficient distance only to secure the stripping from the work whereupon it will be automatically disen- W hile, for convenience of illustration, I have shown my invention applied to a single tool or punch, it will be obvious that it may be applied to all of the tools or punches of a multi toolor punch press.'- As many ram tool holders or posts as may be desirable may have their operating cam faces arranged in substantially the same horizontal plane and be operated by a common cam plate or by a suitable number of individual cam plates whereby the tools or punches will be simultaneou stri 'iped from the work when the head i s n'iovcd. a predetermined distance on the return stroke.

Having thus described my invention, what I claim is:-'

1. In n'iachinc of the character described, the combination of a work supporting member, a movable member or head reciprocable toward and from the work supporting member and having turd-engaging abutment, a tool reciprocably mounted. in the movable member, means other than the abutmel'it for automatic 5* cornice-ting the tool to the head during the mm'ement of the head toward the work, and means for automatically breaking such connection whei'i the head has moved a predetermined distance from the .work.

2. In a machine of the character described, the combination of a-work supporting member, a movable member or head reciprocable toward and from the work supporting mem her, a tool reciprocably mounted in the movable member, an abutment carried by the movable member and adapted to be brought into and out of operative relation to the tool, means other than. the abutment for auto matically connecting the tool to the head for the purpose of moving the tool away from the work, and means for automatically breaking such connection when the head has moved the tool a predetermined distance from the work.

3. In a punch press, the combination of a work supporting member, a head movable toward and from the work supporting member, said head having a guideway, a punch post or support reciprocably mounted in said guideway, a gag movable across the guideway and into and out of operative relation to the punch post or support, means other than the gag for connecting the punch support to the head whereby the said support will be carried by the head as the latter movcs'away from the work, and means for zuitoniatically breaking such connection when the head has moved a predetermined distance in such direction.

4. In a punch press, the combination of a work, supporting member, a head movable toward and from the work supporting member, said head having a guideway, a punch post or support reriprocably mounted in said guidewa a gag movable across the guideway and intoand out of operative relation to the lfi idll post orsupport, means other than the gag for connecting the punch support to the. head. whereby the said support will be carried by the head as the latter moves away from the work and adjustable means for automatically breaking the connection when the head has moved a distance from the work predetermined by such adiustment.

5. In a machine of the character described, the combination of a Work supporting memher, a head movable toward and from said member and having a guideway, a tool supporting member movable in said guideway, said head having an. abutment adapted to engage the tool supporting member during the stroke of the head toward the work sup porting member, a plunger carried by the head, means operative by the movement of the head toward the work supporting memher for engaging the plunger with the tool supporting member, and means other than said abutment operatlve by the movement of the head in the reverse direction for breaking the connection between the plunger and the tool supporting member.

6. In a machine of the character described, the combination of a work supporting member, a head reciprocable toward and from said member, a tool reciprocably mounted in said head, the head having an abutment which is adapted to engage the tool when the head is moved toward the Work, a plunger reciprocably mounted in said head and adapted to engage the tool thereby to connect the same to the head during the movement of the head away from the work, and adjustable means other than said abutment for automatically breaking the connection between the plunger and the tool when the head has moved a predetermined distance from the work.

7. The combination, with a work supporting member, of a head movable toward and from said member and having a guideway, a tool reciprocably mounted in said'guideway, said tool having a notch or recess therein and said head having a guideway adapted to register with said notch or recess, a plunger mounted in the second guideway, means tending to hold said plunger away from said recess and out of engagement with the tool, and adjustable means located in the path of travel of the head and operating to project the plunger into said recess against the action of such withher, a head movable toward and from the work supporting member and having a guideway, a tool rerlprocably mounted 1n said guldeway, an abutment adapted to engage said tool as the head moves toward the work supporting member, means for automatically connecting the tool to the head and for automatically disconnecting the same therefrom when the tool has been moved a predetermined distance to strip the work, such automatic means comprising a guideway in the head extending to the bore thereof, an abutment carried by the tool, a plunger reciprocably mounted in the last mentioned guideway, a sleeve surrounding the outer portion of the plunger and having a cap, a, spring interposed between said cap and the plunger and tending to thrust the plunger into engagement with the abutment on the tool, a spring bearing against the sleeve and tending to move the same away from the tool, the second spring being of greater strength than the first, a lost-motion connection between the sleeve and the plan ger, and adjustable means carried by a fixed part of the machine and adapted to engage the sleeve cap thereby to press the same inwardly against th-.- action of the second spring and to permit the first spring to thrust the plunger into engagement with the abutment on the tool and to permit such second spring to move the sleeve and the phmger in the opposite direction and away from the abutment when the. head has been moved a 'predetermined distance from the work on the reverse stroke of such head.

9. In a machine of the cha 'acter described, the combination of a work supporting member, a head movable toward and from the work supporting member and having a. guideway, a. tool rta-iproiaibly mount ed in said guideway, r gag movable across said guideway and adapted to engage said tool as the head moves toward the work supporting member, and means other than said gag for automatically connecting the tool to the head and tor auton'iatically disconnecting the same when the tool has been moved a predetermined distance in a direction to strip the. work.

10. Tu a machine of the character described, the combination of a work supporting member, a head movable toward and from the work supporting member and having a guidcway. a tool reciprocably mounted in said guidewa v, a ga movable across said guideway and adapted to engages-aid tool as,-.,the head moves toward the work suppdrting member, and means other than said gag for automatically connecting the tool to the head and for automatica ly discoir nccting the same when the tool has been moved a predetermined distance to strip the work. such automatic meanscomprising a. guideway in the. head extending t'rom the bore thereof, a recess in the tool, a plunger reciprocably mounted in the last mentioned guideway, a sleeve surrounding the outer portion of-the plunger and having a capl provided with an inclined or (am surface, a spring interposed between said cap and the-plunger and tending to thrust the plunger into the recess in the tool, a

tween the sleeve and the plunger, and ad 7 justable means carried by a fixed part of the machine, and adapted to engage the sleeve cap thereby to press the same inwardly against the action of the second spring and to permit the plunger to be projected by the. other spring into the re ess in the tool when the head has been moved a predetermined distance toward the work and topermit such second spring to move the sleeve and the plunger in the opposite direction to withdraw the )lunger from the recess when the head has been moved a predetermined distance from the work on the reverse stroke of such head.

11. In a machine of the character described, the con'ibination of a work support-- ing member, a head movable toward and from the work supporting member and having a guideway, a tool reciproeably mounted in said guideway, an abutment adapted to engage said tool as the head moves toward and from the work supporting member. and means for automatically connecting the tool to the head and for automatically disconnecting the same when the todl has been moved a predetermined distanee to strip the work, such automatic meansgconi rising a guide-way in the l ad extending mm the bore thereof, an abutment carried by the tool, a plunger rcciprocabl v mounted in the last mentioned guideway, a. sleeve surrounding the outer portion of the plunger and having a cap, a

-spring interposed between said cap and. the

plungbr and tending to thrust the plunger into engagement with the tool, a spring. bearing against the sleeve and tending to move the same away from the tool, he second spring being of greater strength than the first, a lost .notion connection between the sleeve and the plunger. and adjustable means carried by a fixed part of the machine -and having an inclined surface adapted to engage theinclined surface of the sleeve and adapted to engage the sleeve cap thereby to press the same 'inwardly against the action of the second spring and to permit the plunger to engage thetool adjacent to the abutment when the head has been moved a predetermined distance toward the work and to permit such second spring to move the sleeve and the plunger in the opposite direction when the head has been moved a, prmletermined distance from the work on the. reverse stroke of such head.

T2. In amachine. of the character de scribed, the combination of a work-supporting memberl a head movable toward and from the work-supporting member,

said head having an upper and a lower slideway, a gag slidable in the upper slideway, a dovetailed block slidable in the lower guideway and having a vertical bore, and a tool post or support slidably mounted in said bore.

13. In a machine of the character described, the col'nbii ation of a work supporting member, a head movable toward and from said member, said head having a slideway therein, a block mounted in said slideway and having a bore, a tool-supporting post reciproeably mounted in said bore, said head having a plunger adapted to engage the tool-supporting post and the block.

having a bore for said plunger, and onoperating means associated with the block and the post for maintaining the plunger in and out of operative engagement with the post.

14. The combination, with a reciprocable head and a tool, of a gag carried by the head and movable to connect the head and the tool on the power stroke of the head, and means other than the gag to disconnect the tool from the head on the return stroke of the head.

15. The combination, with a reciprooable head and a tool, said head having an abutment adapted to engage the tool on the power stroke of the head, of means other than the said abutment for automatically disconnecting the tool'from the head on the return stroke of the head/ In testimonv whereof, I hereunto aifix my signature in the presence of two witnesses.

AUGUST L. BEGHTEL.

\Vitn'esse's W. C. SAYLE, O'r'ro on COSTA SCHMIDT.

Disclaimer in Letters Patent No. 1,203,171.

DISCLAIMER.

l.2U3,lTl.-- August L. Bra/ital, Cleveland. Ohio. TOOL-OPERATING MACHINE. latnnt ilalml October 31, lillli. Disclaimer filoil April .24, 1918, by the IlSSigHLIB, 'l'hr '11 rrlmnl Punch d" S'Iu'rr-r llm'l." ('0. Enters its ilisrhiimvr To rhiims Nns. l. 2. I). and 15 and rrmling n5 iolhms:

I. In a marhinv of Lhr rharaclrr ihwtrihril. the rnmhinatiun uf 11 work support-- ing nmnihrr. muvahlv lnvmhur or hand rociprncahlv toward and from the work suppnrting mvmhvr aml having a tnul-rngaging ahntmvnt, a timl raqiprncably mount-ml in [he mm'ahhr mrlnhrr. muansuthm' than Lho ahntmmn for automatically unmet-ting the luul to l-hr head (hiring Lhv mm'vmrnl. ol' the lNllll toward the work. and lm'nns l'nl' auhnnal-icnlly hl'raking Sllf'h mmnwtinn whvn 1hr hcacl has moved a prmlutrrminml distance from ihv work.

'3. In a machine of the clmractcr drsvribml. Lhc rumhinatimi nl a work suppurlin, lnvnihi-r. a mm'ahlr mvmhrr or hvml rvriprurahlv tmnml aml from Lhr work silppurling nn-mhvr. a lunl rm-iprm'nhlv nmnntml in tho muvahlc mvmhcr, an abutnn-nl, rarriml hv lhv inm'ahlo memln'r and :ulaptml to l? hrnnght. infn and out ol' n wrali w whit-inn lu \hr lnul. Inc-ans uthrr than thu almtmrnt fur autumal ically I mum-1min" lhv Luul Lu lhv hmul for tho pln pusu of moving Lhr tnu away from the wnrk. aml nu-ans fur nntmnutirally breaking such vnnnortion when t-ho head has nmvml tlu' luul n pl'm'lvt-rl'lllim'll distance from thr work.

H. In a marhhuof thr rhararlrrilosrrihml. tho combination of a work supporting mvmlu-r. a hand rruiprnrahlu toward and from sairl member. a tool rqcipro'cnbly mount-ml in Hill! hmul. 1hr .hmul having an ahnl-mvntv which is adapted to engage the Lou] whrn lhv lnnul is mnvwl toward the wurk. a plungvr rm-iprocnhly mounted in said ln-ml and mlaplrd to engage the tool lhrreby to runnert the same to the lwml during lhr mm'rnwnt of tha hour! away from thv wurk. and ndjustablo means anther than said nhulanenl. l'nr nntumatirally hrvnkilw thv ronnrrtion between the phnlifur and Um wul when 1hr hand has mm'l-il a prnilotrrminoil (liamnrb from the wor 15. Thu uombination. with a reciqmcahle hcml and a tool, said huad having an abutment adapted to engage the too (nit-he power stroke 91' the head, of means other Lhantlw said abntnwnt for automatic-ally disconnecting thatool from the head on tho return stroke of the hand."

[Oflicial Gazette April30, 1918.]