Abstract: A boring head has a connecting rod, an extending bracket and a cutter mount. The extending bracket is detachably connected with the connecting rod. The cutter mount is securely connected with a front end of the extending bracket. Because the extending bracket is detachably connected with the connecting rod, the extending bracket is replaceable, and the length of the extending bracket can be changed to make a bore with a desired diameter.

Abstract: A woodworking hand tool, particularly for use in woodturning, comprises a shaft like handle provided at one end with a metallic cutting edge, and also with a flat along at least part of its length for engagement, in use, with a tool rest of a lathe or other machine, for stability and wherein the cutting edge is carried on, or by an adaptor that is rotationally adjustable with respect to the handle between at least two operational positions by the user, depending on the cutting action required.

Abstract: A cutting unit includes a detachable head assembly with a cutting insert and holder. The mating spherical surfaces in both parts helps to get freedom of movement, hence helps in getting different rake angles. A set of pins helps getting correct center height for the cutting insert when spherical surfaces of both parts are not in contact with each other. The pins when lifted up gives point contact with spherical surface of the head assembly. The pins are moved in the holes provided in the holder with the help of screw-nut principle. The head assembly is clamped against holder using a clamping ball mechanism. The clamping balls are free to rotate in their respective seating area. Rake angles are changed by turning the head assembly manually. Once the required rake is set, the clamping balls are fastened.

Abstract: A cutting unit includes a detachable head assembly with a cutting insert and holder. The mating spherical surfaces in both parts helps to get freedom of movement, hence helps in getting different rake angles. A set of pins helps getting correct center height for the cutting insert when spherical surfaces of both parts are not in contact with each other. The pins when lifted up gives point contact with spherical surface of the head assembly. The pins are moved in the holes provided in the holder with the help of screw-nut principle. The head assembly is clamped against holder using a clamping ball mechanism. The clamping balls are free to rotate in their respective seating area. Rake angles are changed by turning the head assembly manually. Once the required rake is set, the clamping balls are fastened.

Abstract: A cutting tool (10) comprises a shank (12) for receiving a cutting insert (14) and a block (16) for delivering a flow of fluid to the cutting insert (14). Fluid is delivered to the cutting insert (14) through a fluid passageway (18) that extends through the shank (12) and the block (16). The block (16) is pivotable mounted on the shank (12). The block (16) pivots about screw (22) between a first and a second position. In the first position the block (16) is held in sealing arrangement with the shank (12) to allow the passage of a coolant through the fluid passage (18) to the cutting insert (14). In the second position the block (16) has moved to allow removal of the cutting insert (14) from the shank (12).

Abstract: A tool for refinishing a workpiece such as a brake drum includes an arm for a user to grasp the refinishing tool during operation. A pivotal swivel member is connectable to the arm. The swivel member is formed with an asymmetrical shoulder for compressively and rigidly fixing the swivel member and arm in a fixed linear alignment coincident with a longitudinal axis through the arm and swivel member during a refinishing operation. The asymmetrical shoulder also orients the swivel member in any angular position within a continuous range between zero degrees and forty-five degrees in one direction from the fixed linear alignment. A coupler is formed in the arm and in the swivel member to removably connect the swivel member and the arm. A plurality of demountable locking devices is included for variably positioning the swivel member in relation to the arm. A cutter is detachably mountable on the swivel member, and is adapted to refinish the rotating workpiece on a lathe.

Abstract: A tool holder for mounting a cutting insert for chip removing machining includes a head on which is disposed an insert-receiving seat having an insert-support surface. A plate-shaped member is detachably mounted on the head and includes first and second fingers. The fingers include respective first and second side surfaces forming a recess therebetween. The side surfaces are arranged in upstanding relationship with the insert-support surface to form therewith the insert-receiving seat. The first finger includes a through-slot and is flexible, wherein the first side surface is elastically displaceable relative to the second side surface. An intermediate portion of each of the side surfaces includes a recess wherein each of the side surfaces defines a plurality of spaced-apart contact areas. The plate-shaped member and the head include serrations which are in meshing relationship, except at locations which permit the first finger to be elastically deformed relative to the second finger, by an adjusting screw.

Abstract: A toolholder apparatus includes a head, a cutting tool mounting fixture attached to the head for holding the cutting tool, and a floating roller assembly pivotally mounted relative to the head. These components are arranged and constructed so that during the cutting of a workpiece with the cutting tool the floating roller assembly can pivot about a pivotal axis relative to the head to allow the floating roller assembly to align with the workpiece. A mechanism is also provided for accomplishing the initial adjustment of alignment of the cutting tool with the rotating workpiece. This mechanism includes a cylindrical shaft extending from the head, and having an eccentric cam follower lug extending transversely from the shaft. A mounting block has a cylindrical bore disposed therethrough, and the shaft is received through the bore of the mounting block. A cam piece is slideably disposed within the mounting block to rotate the shaft as the cam piece slides relative to the mounting block.

Abstract: A tool holder is provided for retaining a cutting tool which can be pivotally adjusted to align the cutting tool and provide a precise cut. The tool holder body has an area of reduced cross-section which serves as a fulcrum about which the cutting tool is pivotable. The tool holder body has a forward tool end for retaining a cutting tool and a rearward end operative to be mounted or retained on a lathe or other machine tool. The forward tool end can be pivotally adjusted about the fulcrum to align the cutting tool and provide an accurate, straight cut into a workpiece. A lever arm attached to the cutting tool end is adjustable to cause pivotal movement of the cutting tool by displacing the tool end laterally in response to the force of the lever arm when it is drawn toward or away from the tool holder body.

Abstract: The present invention is a tool holder for supporting a cutting insert during a material-removal process. The tool holder comprises a body having a channel formed therein for receiving a finger that extends from a head. The finger is secured within the channel by an assembly screw that permits the head to move between a retracted position and an extended position relative to the body. When the head is in its extended position, the head is permitted to pivot relative to the body; however, when the head is in its retracted position a pair of shoulders on the body engage a pair of notches on the head, preventing the head from pivoting. A locking screw is also provided that locks the head to the body. The locking screw is designed so that as the locking screw is tightened, the head is urged against the body, thus providing a positive known position for the insert each time the head is moved.

Abstract: A cutter unit for mounting to a slide on a spring coiling machine, comprising a holder having an arm portion, extending along a first direction, for mounting to the coiling machine and a head portion extending along a second direction perpendicular to the first direction and defining an adjustable bore having an axis which extends in a third direction perpendicular to the first and second directions. A plug is insertable coaxially within the adjustable bore and sized to provide axial and rotational degrees of freedom within the bore. The plug includes a front face having a slot oriented transversely to the axis of the bore and sized to receive a cutting tool, and screws or the like for fixing the tool in the slot. A bolt or the like is carried by the head portion, for adjusting the bore to selectively permit axial and rotational movement of the insert therein, and to prevent said movement.

Abstract: A single point adjustable triangular carbide cutting insert holder designed to clamp the cutting insert with maximum possibility for regrind or grinding for secondary operations. The insert holder is arranged for use in a milling machine and is collet-mounted by its shank. The jaw clamps can be removed for placement of the cutting insert between them, and are then refitted in the cavity where they are tightened by adjustment of a screw. As the screw is tightened, the jaw clamps are drawn further within the cavity, and are rigidly clamped against the cavity walls by frictional contact. When partially released, the jaws can be rotated within the cavity, enabling direct adjustment of the cutting insert rake and relief angle as desired. The cutting insert is seated between the jaw clamps on a seating cam mounted at an edge of the inner jaw face, such that the exposed portion of the cutting insert is a maximum.

Abstract: A machining tool to be mounted upon a cutter body, the machining tool including a cartridge for mounting upon the cutter body and an anvil rotatably affixed to the cartridge, the anvil including a pocket into which is affixed a cutting insert for rotation with the anvil.

Abstract: A rotationally symmetrical tool assembly includes a first component constituted by a tool holder; a second component constituted by a tool head and being removably attached to the first component such that engagement faces of the first and second components are in a contacting relationship with one another and are oriented perpendicularly to the rotary axis of the tool assembly. A fitting bore is provided in one of the components and a guide bore is provided in the other of the components. A securing pin projects from the fitting bore and extends into the guide bore for determining and maintaining a desired angular position of the second component relative to the first component.

Abstract: A cutting-off tool comprises a holder (1) and a disk cutter member (2) with recesses (4) being interconnected by means of the bushings (5) having projections (6) which are received in the respective recesses (4) of the cutting-off tool (2) and wedge-and-screw mechanisms which interact with the cutting-off tool (2). Each bushing (5) has a longitudinal groove (13) leading out on its end face having the projection (6).

Abstract: A linearly and angularly adjustable holder for a cutting tool having primary and secondary cutting edges includes a basic element, a receptacle element for the cutting tool rotatably mounted on the basic element, and a setting element slidably mounted on the basic element.The receptacle element is mounted on the basic element so as to be pivotal about the point of intersection of the primary and secondary cutting edges of the cutting bit. An adjustment screw 50 whose threaded portion is seated in the basic element and whose head engages a recess in the receptacle element serves to perform the angular adjustment. The linear adjustment is accomplished with the aid of a double threaded adjustment screw which connects a wedge and the basic element and which slidably engages the setting member to control the length of the holder.

Abstract: A tool cartridge to be fastened to a boring bar for line boring operations comprising a pair of split legs on the tool cartridge. Each leg has an insert with a threaded bore having a different pitch. A differential screw comprising two threads on the shaft corresponding to the two different threaded bores on each insert effects a micro-adjustment of the radially moveable leg on the cartridge holding the cutting tool when the differential screw is rotated.

Abstract: A cutting tool for use with a lathe includes an elongated body member having a generally rectangular cross section dimensioned and configured for cooperation with an associated tool post. The elongated body member has a head end having a step shaped surface thereon on which is disposed a plurality of generally radially extending ribs disposed at equal angular increments. The ribs extend through an arc of 360 degrees. A first head assembly has a lower extremity which includes a surface having a plurality of generally radially extending ribs disposed at equal angular increments thereabout. These ribs are uniformly spaced and dimensioned and configured for cooperation with the ribs of the body portion. The ribs of the head assembly and the body portion have the same angular spacing therebetween. The head assembly includes discrete means for holding a cutter insert and means for holding the head assembly on the body portion.

Abstract: A tool holder constituting an adaptive machining control system to automatically manipulate tool rake angle using in-process force feedback. The tool holder includes a rotatable member for holding a cutting member which cuts a workpiece, a motor to rotate the holding member, and a sensor and control logic to sense cutting forces and activate the motor to rotate the holding member and change the tool rake angle. The cutting member is held so that it rotates about an axis through its cutting tip to change the rake angle without varying the depth of cut on the workpiece. In an alternative embodiment, a manually operated tool holder is manipulated to similarly rotate a cutting member to vary the rake angle.