21 |
Cutting insert and cutting insert holder therefor |
US10018085 |
2000-05-25 |
US06929428B1 |
2005-08-16 |
Günter Wermeister; Heinz Götz-Werner |
A milling cutter for machining camshafts includes a rotary disc and an annular row of cutting bits mounted in pockets formed in the disc. Each cutting bit includes a top surface having a pair of diagonally spaced raised portions. Cutting edges are formed where the top surface and the raised portions intersect side surfaces of the bit. The pockets are arranged along an edge of the disc where a cylindrical outer periphery of the disc intersects an end face of the disc. Each pocket is configured with an internal cavity for receiving a raised portion of an inactive cutting portion of the respective bit. |
22 |
Apparatus for producing cams |
US772076 |
1977-02-25 |
US4112819A |
1978-09-12 |
Richard A. Dooley |
Apparatus for producing cams is provided and specifically a machine for cutting conjugate disc cams for swinging roller followers. The apparatus includes means for holding and rotating a cam blank, a cutting tool, and a pivoted arm carrying the tool adjacent the edge of the blank, the arm also having a pointer for following a line on a moving chart. As the arm is pivoted when the line is followed, the cutting tool machines the edge of the cam blank and produces a cam of the desired shape. Preferably, two cams are formed at the same time by the cutting tool, the cam blanks overlapping and being rotated together. |
23 |
Method for milling cams for Swiss-type screw machines |
US51729174 |
1974-10-23 |
USRE28559E |
1975-09-30 |
|
The invention is directed to a novel apparatus for milling Swiss-type screw machine cams. The invention provides a highly simplified and economical numerically controlled system enabling Swiss-type screw machine cams and similar articles to be milled with an ease and precision heretofore unattainable otherwise than with highly sophisticated and costly equipment. In its most typical application, the invention is utilized in the retrofitting of an existing cutting machine, such as a milling machine apparatus of otherwise conventional construction. Alternatively, the invention can be applied in the first instance, in connection with the manufacture of modified (milling) machines incorporating the new control system.
|
24 |
Apparatus for generating proportional cams from a master cam |
US47216174 |
1974-05-22 |
US3888162A |
1975-06-10 |
MAENNER PAUL |
A cam generating apparatus includes two slides movable in mutually perpendicular directions on a base. One of the slides, called the X-direction slide, carries a master cam. The other slide, called the Y-direction slide, carries a cam follower which engages and follows the contour of the master cam. A pair of adjustable proportioning arms connect one with each of the slides to provide X-and Y-direction outputs which are proportional to the movements of the slides. These outputs drive a cam blank relative to a cutter to generate a cam contour having an amplitude and a length which are proportional to the configuration of the master cam. Cams of several types including rotating and non-rotating cams can be generated from the same master cam, depending on how the outputs are connected to move the cam blank.
|
25 |
Method for milling cams for swiss-type screw machines |
US31513472 |
1972-12-14 |
US3831487A |
1974-08-27 |
VILLANO J |
The invention is directed to a novel apparatus for milling Swiss-type screw machine cams. The invention provides a highly simplified and economical numerically controlled system enabling Swiss-type screw machine cams and similar articles to be milled with an ease and precision heretofore unattainable otherwise than with highly sophisticated and costly equipment. In its most typical application, the invention is utilized in the retrofitting of an existing milling machine apparatus of otherwise conventional construction. Alternatively, the invention can be applied in the first instance, in connection with the manufacture of modified milling machines incorporating the new control system.
|
26 |
Apparatus for milling cams and the like, as for swiss-type screw machine cams |
US3714865D |
1971-01-07 |
US3714865A |
1973-02-06 |
VILLANO J |
The invention is directed to a novel apparatus for milling Swiss-type screw machine cams. The invention provides a highly simplified and economical numerically controlled system enabling Swiss-type screw machine cams and similar articles to be milled with an ease and precision heretofore unattainable otherwise than with highly sophisticated and costly equipment. In its most typical application, the invention is utilized in the retrofitting of an existing milling machine apparatus of otherwise conventional construction. Alternatively, the invention can be applied in the first instance, in connection with the manufacture of modified milling machines incorporating the new control system. The system of the invention utilizes a conventional three axis milling machine, which is fitted out with a rotary table. Numerically controlled stepping motors are provided for the ''''X'''' and ''''Y'''' axes of the milling machine, as well as for the rotary table. An otherwise conventional linear interpolator system, which is substantially self contained and commercially available, is connected between one of the linear axis stepping motors and the rotary table stepping motor. By appropriate control of the linear and rotary stepping motors through the linear interpolator, precise, continuous path cutting of involute cam curves is made possible. Such curves are widely utilized in cams for controlling the operation of Swiss-type screw machines, for effecting cutting tool movement at a constant linear speed. For some Swiss-type screw machines, where the desired cam contour departs slightly from the true involute to accommodate the geometry of the tool supporting arms, the system of the invention provides for programming of the linear and rotary axes to move in the nominal involute relationship, and the ''''Z'''' axis of the machine is actuated by a simple mechanical device to introduce the necessary minor geometrical corrections. The system of the invention provides a highly simplified and economical system for performing a complex milling operation in the production of precision control cams for Swiss-type screw machines.
|
27 |
Cam producing apparatus |
US6280960 |
1960-10-14 |
US3106868A |
1963-10-15 |
JOSEF BOEHM |
|
28 |
Method of forming anchoring clutch for two-speed coaster brake |
US47196754 |
1954-11-30 |
US2875509A |
1959-03-03 |
SCHALL ELMER J |
|
29 |
Automatic cam cutting motor control apparatus |
US19095650 |
1950-10-19 |
US2659849A |
1953-11-17 |
CUNNINGHAM FREDERICK W |
|
30 |
Method or process for cutting multidimensional cams |
US59603932 |
1932-03-01 |
US1977194A |
1934-10-16 |
LOUIS MALKOVSKY |
|
31 |
Method for fine-machining crankshafts and machining center therefor |
US12008765 |
2008-01-14 |
US20100003098A1 |
2010-01-07 |
Bernd Faigle; Wolfgang Marker |
A method and machine for machining shafts, such as crankshafts of an internal combustion engine wherein the shaft supported on a workpiece carrier rotatably about its axis and the carrier is movable relative to a milling tool adjustably supported on the machine, the bearing surfaces of the shaft are fine-machined by a milling tool taking into consideration the resiliency and the bending of the shaft by the engagement force of the milling tool during fine cutting of the bearing surfaces in the various angular rations of the shaft and the axial bearing location between the shaft ends so as to provide for a perfect final round cutting of the bearings without the need for wet grinding. The fine machining is preferably achieved by dry machining and orthogonal rotational milling, all main bearings and lifting bearings being machined in a single clamping from the rough machining dimensions to the final dimension. For a second machining sequence, some of the main bearings and lifting bearings are used as clamping surfaces. |
32 |
Cutting insert and associated milling cutter |
US12379220 |
2009-02-17 |
US20090162155A1 |
2009-06-25 |
Gunter Wermeister |
A cutting insert used for cutting metal, especially for milling camshafts. The insert comprises at least one cutting edge that is formed by the intersection of a face with a flank. The cutting edges extend at an angle deviating from 90° relative to the cutting direction of the cutting insert in order to reduce the noise level during machining. |
33 |
Cutting insert and associated milling cutter |
US10203509 |
2002-12-16 |
US20030113175A1 |
2003-06-19 |
Gunter
Wermeister |
The invention relates to a cutting insert used for cutting metal, especially for milling for example camshafts. The inventive insert comprises at least one cutting edge (4, 4null) that is formed by the intersection of a face (2) with a flank (3). The aim of the invention is to provide a cutting insert for a milling cutter and a corresponding milling cutter the noise level of which, even if at full load, is considerably reduced for high-speed milling. To this end, the cutting edges (4, 4null) extend at an angle deviating from 90null relative to the cutting direction of the cutting insert. |
34 |
Method and device for non-circular contour milling with a conical grinding wheel |
US09424549 |
2000-09-05 |
US06390892B1 |
2002-05-21 |
Udo Klicpera |
Described is a method for the cutting machining of non-circular contours using a tool in the shape of a cone or a truncated cone positioned on a spindle for rotation, said spindle aligned at a certain angle with the workpiece axis on which the workpiece with the contour is positioned, whereby the tool is swiveled during the machining about at least one first swivel axis that is different from the spindle axis. Alternatively, the workpiece can be moved correspondingly, and the tool may remain unchanged in its alignment. Tool and workpiece also may undergo a corresponding movement together, since the crucial factor is solely the relative movement between tool and workpiece. Also described is a device for performing the method. |
35 |
Milling machine |
US508084 |
1983-06-27 |
US4551048A |
1985-11-05 |
James D. Phillips; Robert L. Sheets |
A milling machine for milling a radial projection on an elongated workpiece such as a camshaft. A milling head is provided with a plurality of cutting elements mounted in a circular arrangement on a conical face portion thereof. The head is supported with its axis of rotation so oriented with respect to the workpiece that when rotated the cutting elements move in a path the plane of which forms an angle of less than 90.degree. with the longitudinal axis of the workpiece. |
36 |
Milling machine |
US959051 |
1978-11-08 |
US4215604A |
1980-08-05 |
Gottfried Blaimschein |
A steady is coupled to a longitudinal slide and comprises a driven chuck. A milling tool is carried by a tool slide, which is slidably mounted on the longitudinal slide for a transverse movement derived from the rotation of the workpiece. To prevent a sagging or twisting of the workpiece or inaccuracies resulting from thermal expansion and also to eliminate the need for complicated driven chucks in workpiece carriers and to enable a milling of cross-sections to very close tolerances, two workpiece carriers are provided with non-driven workpiece supports whereas drive means for rotating the workpiece are associated only with the chuck of the steady. The control of the transverse movement of the tool slide is derived from the rotation of the chuck or of the means for rotating the same. |
37 |
Control arrangement for a cam production machine |
US606827 |
1975-08-21 |
US4031445A |
1977-06-21 |
Alfred Schmermund |
An automatic milling or grinding machine provided with a rotationally and rectilinearly displaceable workpiece support is disclosed. Sets of information relating to the law of a camming surface to be formed on a workpiece and to workpiece-dependent parameters determining dimensional characteristics of the camming surface, respectively, are stored in the machine. Related items of information derived from each set are operatively associated with one another and a succession of angle information signals are generated, the succession defining a circular arc corresponding to one on which the axis of rotation of a given roller follower would move on following the camming surface. The machine provides pairs of co-ordinate displacement command signals in response to each angle information signal and applies the command signals to orthogonal co-ordinate drive means arranged to displace the workpiece support along the circular arc in a plane perpendicular to the rotational axis of the workpiece support. |
38 |
Apparatus for milling cams and the like, as for swiss-type screw machine
cams |
US517397 |
1974-10-23 |
USRE28766E |
1976-04-13 |
John A. Villano |
The invention is directed to a novel apparatus for milling Swiss-type screw machine cams. The invention provides a highly simplified and economical numerically controlled system enabling Swiss-type screw machine cams and similar articles to be milled with an ease and precision heretofore unattainable otherwise than with highly sophisticated and costly equipment.In its most typical application, the invention is utilized in the retro-fitting of an existing .Iadd.cutting machine, such as a shaping or .Iaddend.milling machine apparatus of otherwise conventional construction. Alternatively, the invention can be applied in the first instance in connection with the manufacture of modified milling machines incorporating the new control system.The system of the invention utilizes a conventional three axis .Iadd.cutting machine, such as a shaping or .Iaddend. milling machine, which is fitted out with a rotary table. Numerically controlled stepping motors are provided for the "X" and "Y" axes of the .[.milling.]. machine, as well as for the rotary table. An otherwise conventional linear interpolator system, which is substantially self contained and commercially available, is connected between one of the linear axis stepping motors and the rotary table stepping motor. By appropriate control of the linear and rotary stepping motors through the linear interpolator, precise, continuous path cutting of involute cam curves is made possible. Such curves are widely utilized in cams for controlling the operation of Swiss-type screw machines, for effecting cutting tool movement at a constant linear speed.For some Swiss-type screw machines, where the desired cam contour departs slightly from the true involute to accommodate the geometry of the tool supporting arms, the system of the invention provides for programming of the linear and rotary axes to move in the nominal involute relationship, and the "Z" axis of the machine is actuated by a simple mechanical device to introduce the necessary minor geometrical corrections.The system of the invention provides a highly simplified and economical system for performing a complex .[.milling.]. .Iadd.cutting .Iaddend. operation in the production of precision control cams for Swiss-type screw machines. |
39 |
Cam making machine |
US51004543 |
1943-11-12 |
US2386973A |
1945-10-16 |
OTTO MIETH |
|
40 |
Compensating attachment for milling machines |
US25514039 |
1939-02-07 |
US2187794A |
1940-01-23 |
SCHMIDT RUDOLPH J |
|