15results about "Grooves" patented technology

The present invention provides a rolling die that optimizes the flow of a rolled material during rolling, prevents the formation of an incomplete shape of a tooth tip of a product, and does not require a removal process of a protrusion after rolling. The rolling die is used when a helical tooth shape (21) is formed by rolling an outer peripheral surface of a rolled material (20), wherein the rolling die has a bite portion (1), a finishing portion (2), and a retreat portion (3) from a rolling direction start end side toward a rolling direction end end side, a machining tooth that comes into contact with the rolled material (20) is provided in each of the bite portion (1), the finishing portion (2), and the retreat portion (3), the machining tooth (4) of the bite portion (1) has a mountain-shaped tip portion (7) that protrudes toward a tip end at a tooth tip, the mountain-shaped tip portion (7) is configured to be offset from a tooth thickness center line (C r ) of the machining tooth (4) in a direction of a tooth thickness, and the wall amount of the rolling direction start end side becomes a wall amount that is larger than the wall amount of the rolling direction end end side.

Battery pack powered roll groover described herein includes a housing, an inner roller provided on the housing and configured to be received in an inner circumference of a workpiece, a groove roll provided on the housing and configured to produce a groove on the workpiece, one or more motors provided within the housing and configured to drive the groove roll, and an electronic processor electrically connected to the one or more motors. The electronic processor is configured to operate the one or more motors to perform a first operation of moving the groove roll in a radial direction, and operate the one or more motors to perform a second operation of moving the groove roll around a track in a circumferential direction. The first operation is performed to adjust a groove depth on the workpiece. The second operation is performed to produce the groove on the workpiece.

Forming tool with positioned tooth profile pressure rollers (10) for forming longitudinal teeth into the walls of cup-shaped and hollow cylindrical metal parts mounted on receiving bolts and forming dies in different radial working positions, which require repeatably adjusted radial setting positions (1 to 8) of the tooth profile pressure rollers (10), that each of the disc-shaped toothed profile pressure rollers (10) rotatable about a cylindrical axle bolt (12) and the bearing journals (14) arranged on both sides of each axle bolt (12) with their flat and parallel bearing journal positioning and guiding surfaces (17), axially directed between a lower support ring (24) and an upper cover ring (25) and radially abutting a support and adjusting ring (20), form a functional combination of a roller sliding bearing with two radially stepped adjustable support bearings and that the two bearing journals (14) have an identical polygonal cross-sectional shape as mirror images, which can optionally be described as • right-angled trapezoid, • Parallelogram, • Rectangle, • square or as • Octagon is formed and with its bearing pin positioning and guide surfaces (17) in an adjustment area (11) which is arranged between an inner limiting edge (27) on the support ring (24) and a vertical support surface (21) or a support ramp (22) of a support and adjustment ring (20) and is moved and repositioned into several bearing positions (15) of the bearing pins (14), the tooth profile pressure rollers (10) are adjusted in the radial adjustment positions (1 to 8) on the metal part.

A tube grooving device with multiple geared cams uses synchronizing gears, each meshing with two of the geared cams to synchronize the rotation of the cams of the tube element for forming a groove. The position of the groove relative to the end of the tube is controlled by a stop body incorporating a plate mounting ring that engages and disengages with a tube stop surface on one or more of the cams to restrict or allow cam rotation. The tube stop body is positioned within a cup receiving the tube element. This cup restricts flaring at the tube end and limits the tendency for the tube to become out of round during the grooving process. The device is mounted on a power chuck that rotates the tube element.

The invention relates to a cold rolling machine (10) with two tool pairs (18, 19), each comprising a first rolling bar (20) and a second rolling bar (21) for cold forming a workpiece (11). The rolling bars (20, 21) are movable in opposite directions parallel to a longitudinal direction (L) for forming. Each rolling bar (20, 21) is attached to an associated tool slide (32). Each tool slide (32) can be moved and positioned in the longitudinal direction (L) by means of an associated drive unit (33). The drive unit (33) is controllable by means of a control unit (34). The tool slides (32) can be individually positioned and moved in the longitudinal direction (L). The cold rolling machine (10) has at least three individually movable tool slides (32).To set up the cold rolling machine (10), the tool slides (32) and the attached rolling bars (20), (21) of each tool pair (18, 19) can be moved longitudinally (L) to a defined reference position (R1, R2) in order to obtain the desired geometry of the profile (13) on the formed workpiece (11) during subsequent forming. The reference position (R1, R2) can optionally be corrected during series production of several workpieces (11) of the same type if this is necessary due to external influences, such as thermal effects, tool deviations, or tool wear.

An apparatus (1) arranged for rolling a circumferential external groove (994) in a pipe (99) The apparatus (1) comprises a fixture (50) and a grooving tool (10). In a fixing- position the fixture (50) is configured to engage an internal wall (996) of the pipe (99) and fix the apparatus (1) to a pipe end portion (990) such that a pipe centre axis (X99) is coaxial with an apparatus centre axis (X1), and the grooving tool (10) is rotatable around the centre axis (X1). The grooving tool (10) comprises a hydraulic piston (12) and at least one wheel-holder (110), the hydraulic piston (12) is displaceable along the centre axis (X1), the hydraulic piston (12) is configured to displace the wheel-holder (110) in a radial direction relative to the centre axis (X1) between an idle position (1102) and a grooving position (1104), and the wheel-holder (110) comprises a grooving wheel (111).

The present disclosure refers to a cold forming machine having two tool pairs that include a first cold forming rack and a second cold forming rack for cold forming of a workpiece respectively. The cold forming racks are movable parallel to a longitudinal direction during deformation. Each cold forming rack is attached to an assigned tool slide. Each tool slide can be moved and positioned in a longitudinal direction by means of an assigned drive unit. The drive unit is controllable by means of a control unit. The control slides can be individually positioned and moved in the longitudinal direction. Cold forming machine comprises at least three individually movable tool slides. For setup of cold forming machine, the tool slides and the cold forming racks of each tool pair attached thereon can be brought into a defined reference position in order to obtain the desired geometry of the profile on the deformed workpiece during the following deformation. The reference position can be corrected optionally during a series production of multiple workpieces of the same type, if this is necessary due to external influences, such as thermal influences, tool variations from a desired tool shape or tool wear.

A method of manufacturing a metal mask includes calendering a metal material, so as to form a metal mask substrate, where the metal mask substrate includes a surface and a plurality of grooves formed in the surface, and the grooves all extend in a direction. The surface has at least one sampling region, while at least two grooves are distributed in the sampling region, where an average area ratio of the area of the grooves within the sampling region to the area of the sampling region ranges between 45% and 68%.

A pipe groover can include a base assembly; a spindle plate secured to the base assembly but configured to rotate about an axis with respect to the base assembly; and a plurality of roller assemblies secured to the spindle plate, each of the roller assemblies including a pair of rollers configured to form a groove in a pipe proximate to an end of the pipe.

A pipe grooving device having a plurality of geared cams uses synchronizing gears, each of which meshes with two of the geared cams, to synchronize the rotation of the cams which engage the pipe element to form the groove. The position of the groove relative to the end of the pipe is controlled by a stop body which incorporates a plate mounted ring which engages and disengages with a pipe stop surface on one or more of the cams to limit or permit cam rotation. The pipe stop body is positioned within a cup which receives the pipe element. The cup limits pipe end flare and limits the tendency of the pipe to go out of round during the grooving process. The device mounts on a powered chuck which turns the pipe element.

The invention relates to a cold rolling machine (10) with two tool pairs (18, 19), each having a first rolling rod (20) and a second rolling rod (21) for cold forming a workpiece (11). The rolling rods (20, 21) can be moved in opposite directions parallel to a longitudinal direction (L) for forming. Each rolling rod (20, 21) is fastened to an associated tool carriage (32). Each tool carriage (32) can be moved and positioned in the longitudinal direction (L) by means of an associated drive unit (33). The drive unit (33) can be controlled by means of a control unit (34). The tool carriages (32) can be individually positioned and moved in the longitudinal direction (L). The cold rolling machine (10) has at least three individually movable tool carriages (32).To set up the cold rolling machine (10), the tool slides (32) and the attached rolling bars (20), (21) of each tool pair (18, 19) can be moved into a defined reference position (R1, R2) in the longitudinal direction (L) in order to obtain the desired geometry of the profile (13) on the formed workpiece (11) during subsequent forming. The reference position (R1, R2) can optionally be corrected during series production of several workpieces (11) of the same type if this is necessary due to external influences, such as thermal influences, tool deviations, or tool wear.

In a die-casting machine with toggle-joint or without toggle-joint, a threaded section or a shaped section of horizontal columns is made by first carrying out turning and then rolling.

Battery pack powered roll groover described herein includes a housing, an inner roller provided on the housing and configured to be received in an inner circumference of a workpiece, a groove roll provided on the housing and configured to produce a groove on the workpiece, one or more motors provided within the housing and configured to drive the groove roll, and an electronic processor electrically connected to the one or more motors. The electronic processor is configured to operate the one or more motors to perform a first operation of moving the groove roll in a radial direction, and operate the one or more motors to perform a second operation of moving the groove roll around a track in a circumferential direction. The first operation is performed to adjust a groove depth on the workpiece. The second operation is performed to produce the groove on the workpiece.

An apparatus (1) for rolling a circumferential outer slot (994) in a pipe (99). The apparatus (1) comprises a clamp (50) and a grooving tool (10). In a fixed position, the clamp (50) is configured to engage an inner wall (996) of the pipe (99) and fix the device (1) to a pipe end portion (990) such that the pipe central axis (X99) is coaxial with the device central axis (X1), and the grooving tool (10) is rotatable about the central axis (X1), the grooving tool (10) comprising a hydraulic piston (12) and at least one wheeled holder (110), the hydraulic piston (12) is displaceable along the central axis (X1), the hydraulic piston (12) is configured to displace the wheeled holder (110) in a radial direction relative to the central axis (X1) between an idle position (1102) and a slotted position (1104), and the wheeled holder (110) comprises a slotted wheel (111).