US3872699A - Anti-skid assembly for rolling machines - Google Patents

Anti-skid assembly for rolling machines Download PDF

Info

Publication number
US3872699A
US3872699A US463457A US46345774A US3872699A US 3872699 A US3872699 A US 3872699A US 463457 A US463457 A US 463457A US 46345774 A US46345774 A US 46345774A US 3872699 A US3872699 A US 3872699A
Authority
US
United States
Prior art keywords
workpiece
forming
racks
engagement
pads
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US463457A
Other languages
English (en)
Inventor
Donald Edward Blue
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Caterpillar Inc
Original Assignee
Caterpillar Tractor Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Caterpillar Tractor Co filed Critical Caterpillar Tractor Co
Priority to US463457A priority Critical patent/US3872699A/en
Application granted granted Critical
Publication of US3872699A publication Critical patent/US3872699A/en
Priority to GB1268575A priority patent/GB1449182A/en
Priority to JP50037052A priority patent/JPS50148264A/ja
Priority to BE155733A priority patent/BE828342A/xx
Assigned to CATERPILLAR INC., A CORP. OF DE. reassignment CATERPILLAR INC., A CORP. OF DE. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: CATERPILLAR TRACTOR CO., A CORP. OF CALIF.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H5/00—Making gear wheels, racks, spline shafts or worms
    • B21H5/02—Making gear wheels, racks, spline shafts or worms with cylindrical outline, e.g. by means of die rolls
    • B21H5/027—Making gear wheels, racks, spline shafts or worms with cylindrical outline, e.g. by means of die rolls by rolling using reciprocating flat dies, e.g. racks

Definitions

  • ABSTRACT In a rolling machine of the type having toothed forming racks which are moved in opposite directions while being transversely engaged with a rotatably supported cylindrical workpiece, the workpiece is brought up to a desired rate of rotation prior to its engagement with the teeth on the racks by means of anti-skid pads of elastomeric materials which are arranged upon the respective leading ends of the racks for engagement with the workpiece.
  • the present invention relates to rolling machines and DESCRIPTION OF THE PREFERRED EMBODIMENT
  • a forming or rolling machine of the type contemmore ti l l t an mi kid bl hi h i plated by the present invention is partially illustrated at adaptable to such machines for imparting rolling motion to the workpiece prior to its engagement with forming projections.
  • the rolling machine of the above-noted patent is typical in that it includes a housing having upper and lower guide means for supporting a pair of powered slide members including forming racks which are tangentially engaged with a rotatably supported cylindrical workpiece.
  • a housing having upper and lower guide means for supporting a pair of powered slide members including forming racks which are tangentially engaged with a rotatably supported cylindrical workpiece.
  • Rolling machines of the type disclosed above commonly have smooth surfaces formed at the leading ends of the racks which are intended to initially engage the workpiece and set it in rotation before it is contacted by the forming projections or teeth upon the racks. It has been found that such surfaces often are inadequate to bring the workpiece up to the desired rate of speed.
  • the metal-to-metal contact between the workpiece and the smooth surfaces commonly permits the workpiece to skid rather than to commence desired rotation. This skidding tendency is further promoted by the presence of cutting oils upon the racks and the workpiece.
  • an anti-skid assembly comprising a pad of abrasive, oil-resistant and resilient material secured to a leading end of each forming rack, the antiskid pads being configured for interference engagement with the workpiece in order to bring the workpiece up to a desired rate of rotation prior to its engagement with forming projections on the racks.
  • FIG. 1 is a fragmentary view in side elevation of a rolling machine of the type contemplated by the present invention.
  • FIG. 2 is a further enlarged fragmentary view illustrating a leading end of one of the forming racks on the rolling machine of FIG. 1 with an anti-skid pad being secured to the rack in accordance with the present invention.
  • FIG. 3 is another view of the leading end of the rack as seen from the top of FIG. 2.
  • the rolling machine has a relatively massive frame, a portion of which is indicated at 11.
  • Upper and lower guide units 12 and 13 are secured to the frame by bolts 14 and include internally formed surfaces or guide tracks (not shown) for respectively receiving upper and lower powered slide members indicated at 16 and 17.
  • An elongaged forming die or rack is secured to each of the slide members, an upper forming rack being indicated at 18 and a lower forming rack being indicated at 19.
  • the forming racks 18 and 19 are accordingly arranged within the forming machine for tangential engagement with a cylindrical workpiece indicated at 21.
  • the cylindrical workpiece is rotatably supported upon stationary locating centers or suitable cradles (not shown) which may, for example, be adjustably mounted upon the frame 11 of the forming machine.
  • Each of the racks l8 and 19 has a repetitive configuration of forming projections or teeth indicated at 22.
  • One preferred configuration and orientation of such forming teeth may be seen, for example, by having reference to the patent noted above.
  • the teeth are arranged upon the racks so that as the racks are moved tangentially past the workpiece in opposite directions, the forming teeth penetrate the periphery of the cylindrical workpiece to form a peripheral configuration thereon.
  • the racks may be moved tangentially past the workpiece by means of hydraulic jacks such as that indicated at 23, which is secured between the slide member 17 and the frame 11.
  • a similar jack (not shown) is also employed to simultaneously move the other slide member 16 and associated rack 18 in the opposite direction.
  • each of the racks 18 and 19 has a leading end, indicated respectively at 28 and 29.
  • the leading ends of the two racks simultaneously enter into tangential engagement with the workpiece prior to engagement of the workpiece with the forming teeth 22.
  • the metallic surfaces of the leading ends on the racks are spaced apart from each other to just engage the workpiece.
  • anti-skid pads 32 and 33 are arranged upon the leading ends of the two racks 18 and 19 respectively.
  • the anti-skid pad 33 arranged upon the leading end of the rack 19 is also illustrated in FIGS. 2 and 3. It will, of course, be understood that the other antiskid pad 32 is to be of similar composition and configuration.
  • the anti-skid pads 32 and 33 are to be formed from material characterized as being abrasive, oil-resistant and resilient. Abrasiveness in the pads assures frictional engagement with the workpiece so that it will be properly set into rotation. Oil resistance of the pads is also important to resist the effect of cutting oils, which are commonly present upon the racks and the workpiece.
  • the resilient anti-skid pads are arranged upon recessed surfaces 34 at the leading ends of the racks and extend slightly above the metallic surfaces 31 to assure interference engagement of the two pads with the workpiece.
  • the pads also are selected to have a sufficient length along the forming axis of the racks to assure that the workpiece is brought up to the desired rotating speed before it enters into engagement with the teeth 22.
  • the pads which may be replaced, are secured to the recessed surfaces 34 by conventional means such as cement or mechanical retainer (not shown).
  • the elastomeric pads are preferably formed from Buna N rubber having a durometer hardness of approximately 60 to 70. This material exhibits the desired characteristics of abrasiveness, resilience and oil resistance.
  • a rolling machine for forming a peripheral configuration on a rotatably supported cylindrical workpiece and having a housing with upper and lower guide means defined thereon, a pair of powered slide members respectively movable along said guide means transversely of the workpiece, and a pair of forming racks mounted upon said slide members for substantially simultaneous movement in opposite directions and having forming projections arranged for tangential engagement with the workpiece
  • the improvement comprising an anti-skid assembly for assuring proper rotation of the workpiece as it is initially engaged by the forming projections, the anti-skid assembly including a pad of abrasive, oil resistant and resilient material secured to a leading end of each forming rack, the pads being spaced apart from each other by a preselected distance to assure common interference engagement with the workpiece, the pads having a preselected length along the forming axis of the racks in order to bring the workpiece up to a desired rate of rotation commensurate with the lineal speed of the racks prior to its engagement with the forming projections.
  • each pad is an insert of elastomer secured to a recessed surface on the leading end of each rack.
  • each pad is an elastomeric insert having a durometer hardness in the general range of -70.
  • each elastomeric insert is formed from Buna N rubber.
  • a gear or spline forming machine for rolling a plurality of teeth onto the periphery of a rotatably supported cylindrical workpiece comprising:
  • an anti-skid pad formed from an abrasive, oilresistant and resilient elastomeric material secured to a leading end of each forming rack for engagement with the workpiece prior to engagement of the workpiece with the forming projections, the elastomeric pads being spaced apart from each other by a preselected distance to assure common interference engagement with the workpiece.
  • the pads having a preselected length along the forming axis ofthe racks in order to bring the workpiece up to a desired rate of rotation commensurate with the lineal speed of the racks prior to engagement of the workpiece with the forming projections.
  • each elastomeric pad is an insert secured to a recessed surface upon the leading end of each forming rack.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
US463457A 1974-04-24 1974-04-24 Anti-skid assembly for rolling machines Expired - Lifetime US3872699A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US463457A US3872699A (en) 1974-04-24 1974-04-24 Anti-skid assembly for rolling machines
GB1268575A GB1449182A (en) 1974-04-24 1975-03-26 Anti-skid assembly for rolling machines
JP50037052A JPS50148264A (enrdf_load_stackoverflow) 1974-04-24 1975-03-28
BE155733A BE828342A (fr) 1974-04-24 1975-04-24 Ensemble anti glissant pour machine a mouvement de roulement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US463457A US3872699A (en) 1974-04-24 1974-04-24 Anti-skid assembly for rolling machines

Publications (1)

Publication Number Publication Date
US3872699A true US3872699A (en) 1975-03-25

Family

ID=23840152

Family Applications (1)

Application Number Title Priority Date Filing Date
US463457A Expired - Lifetime US3872699A (en) 1974-04-24 1974-04-24 Anti-skid assembly for rolling machines

Country Status (4)

Country Link
US (1) US3872699A (enrdf_load_stackoverflow)
JP (1) JPS50148264A (enrdf_load_stackoverflow)
BE (1) BE828342A (enrdf_load_stackoverflow)
GB (1) GB1449182A (enrdf_load_stackoverflow)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2521042A1 (fr) * 1982-02-10 1983-08-12 Ex Cell O Corp Outil de formage de dents pour canneler des elements tubulaires
FR2521043A1 (fr) * 1982-02-10 1983-08-12 Ex Cell O Corp Outil de formage de dents comprenant une section de serrage sans dents pour former des cannelures sur des elements tubulaires
US4399678A (en) * 1981-03-02 1983-08-23 Anderson-Cook, Inc. Rack for splining thin-wall sleeves of power transmission members
US4610154A (en) * 1982-02-10 1986-09-09 Ex-Cell-O Corporation Tooth forming tool with toothless clamping section for splining tubular elements
US4787230A (en) * 1986-06-15 1988-11-29 Fuji Tekko Co., Ltd. Rolling flat cutter and method of rolling thereby
US4787229A (en) * 1986-07-14 1988-11-29 Fuji Tekko Co., Ltd. Method of rolling a pipe by flat cutters
US4796462A (en) * 1986-08-02 1989-01-10 Fuji Tekko Co., Ltd. Workpiece bite device in a rolling flat cutter
EP1918039A4 (en) * 2005-08-02 2014-06-18 Ind Metalurgicas Jem S A ROLLING RACK
CN105268882A (zh) * 2015-11-11 2016-01-27 重庆荆江汽车半轴有限公司 搓齿机垫板装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6267631U (enrdf_load_stackoverflow) * 1985-10-21 1987-04-27
CN115090802B (zh) * 2022-08-25 2022-11-25 江苏海宇机械有限公司 一种花键轴齿形加工搓齿机

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3015243A (en) * 1958-01-06 1962-01-02 Michigan Tool Co Tool for pressure forming toothed elements
US3044329A (en) * 1958-04-11 1962-07-17 Bethlehem Steel Corp Apparatus for multi-diameter thread rolling
US3818736A (en) * 1972-10-10 1974-06-25 Caterpillar Tractor Co Tooth forming machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3015243A (en) * 1958-01-06 1962-01-02 Michigan Tool Co Tool for pressure forming toothed elements
US3044329A (en) * 1958-04-11 1962-07-17 Bethlehem Steel Corp Apparatus for multi-diameter thread rolling
US3818736A (en) * 1972-10-10 1974-06-25 Caterpillar Tractor Co Tooth forming machine

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4399678A (en) * 1981-03-02 1983-08-23 Anderson-Cook, Inc. Rack for splining thin-wall sleeves of power transmission members
FR2521042A1 (fr) * 1982-02-10 1983-08-12 Ex Cell O Corp Outil de formage de dents pour canneler des elements tubulaires
FR2521043A1 (fr) * 1982-02-10 1983-08-12 Ex Cell O Corp Outil de formage de dents comprenant une section de serrage sans dents pour former des cannelures sur des elements tubulaires
US4485657A (en) * 1982-02-10 1984-12-04 Ex-Cell-O Corporation Tooth forming tool and method for splining tubular elements
US4610154A (en) * 1982-02-10 1986-09-09 Ex-Cell-O Corporation Tooth forming tool with toothless clamping section for splining tubular elements
US4787230A (en) * 1986-06-15 1988-11-29 Fuji Tekko Co., Ltd. Rolling flat cutter and method of rolling thereby
US4787229A (en) * 1986-07-14 1988-11-29 Fuji Tekko Co., Ltd. Method of rolling a pipe by flat cutters
US4796462A (en) * 1986-08-02 1989-01-10 Fuji Tekko Co., Ltd. Workpiece bite device in a rolling flat cutter
EP1918039A4 (en) * 2005-08-02 2014-06-18 Ind Metalurgicas Jem S A ROLLING RACK
CN105268882A (zh) * 2015-11-11 2016-01-27 重庆荆江汽车半轴有限公司 搓齿机垫板装置

Also Published As

Publication number Publication date
JPS50148264A (enrdf_load_stackoverflow) 1975-11-27
GB1449182A (en) 1976-09-15
BE828342A (fr) 1975-10-24

Similar Documents

Publication Publication Date Title
US3872699A (en) Anti-skid assembly for rolling machines
US3229791A (en) Apparatus for use with presses and the like
US4354374A (en) Bending press
DE19623453C2 (de) Vorrichtung zum Ausbilden der Zähne eines Zahnrades
DE2704135B2 (de) Vorrichtung zur Herstellung von zylinderförmige Naben aufweisenden Riemenscheiben
DE1112873B (de) Klemmeinrichtung mit axial beweglichen Klemmbacken fuer die Werkstueckspindel einer Werkzeugmaschine
EP0298324A3 (de) Gleitringdichtung zur Abdichtung eines gasförmigen Mediums
US2799317A (en) Resilient wheel apparatus and method for forming strip material
US3857147A (en) Method of manufacturing bearing races by rolling
US3857273A (en) Toothed forming tool
GB1586200A (en) Brake pad assembly
US3890017A (en) Machine slide assembly
US3606782A (en) Gear rolling method and apparatus
DE2104244B2 (de) Vorrichtung zum Prägen von in Büromaschinen verwendeten Typen am Umfang eines zylinderförmigen Rohlings
DE613545C (de) Vorrichtung zum spitzenlosen Schleifen und Polieren von ringfoermigen Koerpern
US3311066A (en) Apparatus for use with presses and the like
DE3741596C2 (enrdf_load_stackoverflow)
DE2047037B2 (de) Einrichtung zum Glätten und/oder spanlosen Entgraten von Zahnrädern mit Innenverzahnung
DE900926C (de) Verfahren und Vorrichtung zum Walzen von Verzahnungen, Riffelungen oder Kerbungen anzylindrischen Werkstuecken
US3019723A (en) Method of pressing by rolling by means of an embossed wheel and pressing machine for carrying out the said method
US3995352A (en) Gear shaving cutter
US3677053A (en) Planishing machine
DE2448920C3 (de) Kopiervorrichtung für Werkzeugmaschinen, insbesondere zur spanabhebenden Bearbeitung von Holz u.dgl. Werkstoffen
US1601795A (en) Machine for straightening clutch disks
DE2004222A1 (de) Einrichtung zur Fertigbearbeitung vorgezahnter Zahnraeder

Legal Events

Date Code Title Description
AS Assignment

Owner name: CATERPILLAR INC., 100 N.E. ADAMS STREET, PEORIA, I

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:CATERPILLAR TRACTOR CO., A CORP. OF CALIF.;REEL/FRAME:004669/0905

Effective date: 19860515

Owner name: CATERPILLAR INC., A CORP. OF DE.,ILLINOIS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CATERPILLAR TRACTOR CO., A CORP. OF CALIF.;REEL/FRAME:004669/0905

Effective date: 19860515