| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 279200010 | EXPANDING | 34 |
| 20130015627 | Expansion Chuck for Loss-Free Transmission of a Lubricating MediumAANM Herud; Josef K.AACI HerzogenaurachAACO DEAAGP Herud; Josef K. Herzogenaurach DE - A tool holder comprising a body which has a spindle side for fastening the tool holder to a spindle of a machine tool and a tool side for accommodating a tool and comprising a lubricating media passage from the spindle side to the tool side contains a lubricating media bush adjustable in the axial direction in the body, said lubricating media bush opening out on the tool side of the body, wherein a guide for the lubricating media bush is provided in the body, said guide containing a fitting section in which the lubricating media bush is adjustably guided, wherein a seal is provided which seals the lubricating media bush relative to the body. | 01-17-2013 |
| 279200020 | Collet type | 12 |
| 20080290613 | Low-Vibration Tool Holder - The present invention relates to a low-vibration tool holder ( | 11-27-2008 |
| 20090091091 | SHRINK FIT SLEEVE FOR TOOL HOLDER - A tool holder includes a shank including a tool holder portion and a central bore for accommodating a cutting tool, and a first shrink fit sleeve disposed about the tool holder portion of the shank. An application of heat to the tool holder causes the tool holder portion and the first shrink fit sleeve to expand outwardly, and the removal of heat will cause the tool holder portion and the first shrink fit sleeve to contract inwardly to rigidly maintain the cutting tool within the tool holder by shrink fit. The tool holder may also include a second shrink fit sleeve disposed about the first shrink fit sleeve to provide increased torque capability. | 04-09-2009 |
| 20150061234 | COLLET ADAPTER - A collet adaptor | 03-05-2015 |
| 20160052064 | Clamping device - A clamping device for releasably holding a tool holder shank formed with a bore includes a housing having a forwardly facing surface and a bore. A drawbar is mounted reciprocally movable inside the bore and which in a forward end has engagement device, which is arranged to engage with an engagement formation inside the bore of the tool holder shank. The drawbar is, in a rear portion, formed with a drawbar aperture extending through the drawbar in a transverse direction in relation to a longitudinal axis of the same, and a cam shaft extending through the drawbar aperture and being rotatably journalled in the housing and arranged to impart an axial displacement to the drawbar in relation to the housing. The cam shaft includes first and second spaced apart cam formations and an intermediate circular cylindrical portion located between the cam formations, wherein the first and second cam formations are journalled in a first and second seating apertures, respectively, in the housing on opposite sides of the drawbar. The intermediate circular cylindrical portion is extended through the drawbar aperture, and the drawbar is insertable into the bore through the forwardly facing surface. | 02-25-2016 |
| 20160052065 | Clamping Device - A clamping device for releasably holding a tool holder shank is formed with an engagement bore in a rear end. The clamping device includes a housing having a mounting bore for receiving the tool holder shank; a drawbar being mounted reciprocally movable inside the housing and which in a forward end is provided with an engagement segment which is arranged to engage with an engagement formation inside the engagement bore of the tool holder shank, wherein the drawbar is in a rear portion formed with a drawbar aperture extending through the drawbar, and a cam shaft extending through the drawbar aperture and comprising a cam formation. The cam shaft is rotatably journalled in the housing and arranged to impart an axial displacement to the drawbar in relation to the housing by the cam formation when rotating the cam shaft. The cam shaft includes two identical cam formations, which are spaced apart by a recess, and the drawbar is on the inside of the aperture formed with a ridge on each side of the aperture which each fits in the recess of the cam shaft when rotating the same. | 02-25-2016 |
| 279200030 | Fixed jaws and moving cam | 7 |
| 20100078898 | STAGGERED PRESSURE ZONE COLLET ASSEMBLY - A collet assembly that holds two disks to be processed simultaneously uses alternating pressure zones to press against the inner diameter of the disks to hold them in place in a processing machine. While the disks to be processed are typically media disks, any type of disk processing can make use of the collet assembly of the present invention. | 04-01-2010 |
| 20100140882 | SIDE ACTUATED COLLET LOCK MECHANISM - A side actuated collet lock mechanism includes a collet; a drawbar at least partially disposed within the collet, and a pair of wedge members threadingly received onto each end of a double-ended drive screw. The drive screw is rotated to cause the wedge members to move downward such that a first cam surface engages the drawbar. The drawbar and collet are pulled into the tool holder and firmly secure the shank. To remove the shank, the drive screw is rotated in an opposite direction to cause the wedge members to move upward such that a second cam surface engages the drawbar. The drawbar and the collet are pushed out from the toolholder, thereby releasing the shank. | 06-10-2010 |
| 20110210522 | Hydrostatic Testing Tool and Methods of Use - A hydrostatic testing tool for testing containers, hoses or the like under high pressures. The testing tool having a coupling that threadably engages a threaded aperture of a test container without having to be rotated into the threaded aperture. The hydrostatic testing tool may be hooked up to a source of pressurized medium and the tool includes a container-engaging head having a plurality of collet segments that each have a threaded surface that can expand radially outward, partially due to the force of the pressurized medium, to engage a threaded aperture of the test container, allowing for the formation of a liquid and/or gas tight seal under high pressures. The testing tool further includes an actuating unit connected to the head that controls the movement of the collet segments with a piston or the like. | 09-01-2011 |
| 20140353929 | EXPANDING ARBOR - An expandable arbor for mounting a tool or work piece to a machine tool includes a mounting portion including a tubular section having conical exterior surface flaring outwardly towards a substantially closed end thereof. The arbor includes an opposing end having a plug removably disposed therein. The closed end has a finger extending axially therefrom. The mounting portion is configured to be rotatably coupled to a machine tool spindle and defines a keyway configured on a portion of an outer surface thereof. The arbor includes a clamping portion comprising an expandable sleeve slidably positioned over the finger. The finger is axially movable relative to and within the expandable sleeve. A nut is positioned over a portion of the expandable sleeve for axially retaining the expandable sleeve relative to the machine tool and allowing radial movement of the expandable sleeve. The finger is axially movable within the expandable sleeve between a clamped position and an unclamped position upon application and removal of a force to the conical exterior surface. In the clamped position, the expandable sleeve is radially expanded relative to the unclamped position. | 12-04-2014 |
| 20140361500 | EXPANDABLE ARBOR, CLAMPING SYSTEM AND METHOD OF CLAMPING ONE OF A WORKPIECE AND A TOOL TO A MACHINE - An expandable arbor for rotatably mounting an object to a machine tool comprises a mounting portion fastenable to a machine tool spindle and a clamping portion located on the mounting portion. The clamping portion comprises a finger extending from the mounting portion, an expandable sleeve coupled to the finger, and a nut for coupling the expandable sleeve to the mounting portion and for coupling the mounting portion to the rotating spindle. The expansion of the expandable sleeve allows for the clamping of the expandable sleeve to an internal surface of a tool or workpiece. | 12-11-2014 |
| 20150061235 | CLAMPING FIXTURE - A clamping fixture for clamping a component, in particular a workpiece or tool, having a number of clamping jaws, distributed along a periphery, which are connected by appropriate elastic flexural webs to a main body, wherein the clamping jaws are adjustable by an axially movable actuating device in a radial direction from a release position into a holding position, which clamping fixture is characterized in that the flexural webs, in their release position, are inclined in relation to an axially parallel direction radially in a direction of their respective holding positions. | 03-05-2015 |
| 20160016350 | HOLDING DEVICE FOR PLASTIC PARISONS - A holding device for holding plastic containers and in particular plastic parisons with a holding section which can be introduced into a mouth of the plastic containers, wherein the holding section has at least one first holding element and one second holding element which are movable relative to one another and which in each case have a section which can be applied to an inner wall of the mouth. According to the invention an expansion body which supports the two holding elements at least intermittently is disposed between the holding elements, wherein a replaceable expansion element is disposed on this expansion body, wherein this expansion element is located at least in some sections between the expansion body and the holding elements. | 01-21-2016 |
| 279200060 | Fluid-pressure actuator | 13 |
| 20100013168 | CHUCKING DEVICE FOR USE IN MACHINING EXHAUST GAS PURIFYING SYSTEM - A chucking device for use when an outer peripheral end part of a semi-finished product having a pillar-shaped catalyst wrapped in a mat and housed in a cylinder is spin-processed using a plurality of spinning rollers. An outer peripheral surface of the semi-finished product is chucked using a plurality of pressing pieces. Each of the pressing pieces has a contact surface for touching the cylinder of the semi-finished product, and a pair of chamfers extending radially outward from either end of the contact surface. | 01-21-2010 |
| 20110221144 | WORKHOLDER FOR HOLDING A WORKPIECE TO BE PROCESSED IN A MACHINE TOOL - The invention relates to a workholder ( | 09-15-2011 |
| 20120319364 | CHUCK ASSEMBLY FOR LIGHT ALLOY WHEELS - A chuck assembly for a light alloy wheel is used with a lathe for machining a workpiece, and includes: a chuck body fixed to be coaxial with a lathe spindle; a flexible power chuck including radially extending first second cylinder chambers located on first and second sectional surfaces, respectively, of the chuck body perpendicular to a chuck body axis along outer peripheries of the first and second sectional surfaces, respectively, and pistons received in the first and second cylinder chambers, the pistons being moveable by fluid pressure to grip the inner surface of the rim member in a compensating manner; and a retracting chuck to grip and center the hub mounting portion, and then pull the disk portion to press against a reference surface of the chuck body, whereby the lathe can machine an entire radially outer surface of the rim member. | 12-20-2012 |
| 20130292913 | HYDRO-EXPANSION CHUCK - The invention relates to a hydraulic expansion chuck ( | 11-07-2013 |
| 20130307230 | Means for Preventing Tools from Being Pulled Out from Tool Holders with a Tool Holding Fixture - The invention relates to a tool holder with a tool holding fixture, in particular a clamping chuck such as a contracting chuck, a draw-in collect chuck, a hydraulic expanding chuck and a high-precision chuck, and a shank of a tool, in particular a rotary tool, accommodated in it, wherein the tool holder contains a means for preventing the tool from being pulled out, locking it against axial displacement. This pull-out preventing unit comprises at least one locking element and at least one locking groove, which corresponds to the said locking element, receives it and interacts with it in a positively locking manner. In this case, both the locking element and the locking groove are formed at least partly in the manner of a ball head. Preferably, the tool has the locking grooves. On account of preferably spirally arranged locking grooves along the cylindrical shank of rotary tools, the direction of pitch of which grooves corresponds to the direction of the grooves of the tool, axial locking of the tool is obtained, so that the tool cannot be axially displaced from the tool holder during operation. In addition, force-exerting elements are arranged, with the effect of making the tool lie against the pull-out preventer without play after shrink-fitting. | 11-21-2013 |
| 279200070 | Directly expanding jaws | 3 |
| 20100164187 | ADAPTIVE DESIGN OF FIXTURE FOR THIN-WALLED SHELL/CYLINDRICAL COMPONENTS - A group of fixtures for thin-walled shell/cylindrical components ( | 07-01-2010 |
| 279200080 | Jaw is expansible chamber; i.e., bladder type | 2 |
| 20100253015 | FLUID-ACTUATED WORKHOLDER WITH A COLLET DRIVEN BY A SOFT AND THIN BLADDER - A workholder to hold a workpiece, including a main body partially defining a fluid chamber, and a bladder carried by the main body with an interference fit, further defining the fluid chamber, and composed of an 80 to 100 durometer Shore A scale hardness polymer of a 12:1 to 18:1 diameter-to-wall-thickness ratio. Annular seals may further define the fluid chamber, and are disposed radially between the bladder and main body and axially adjacent the fluid chamber, and are composed of a 60 to 80 durometer Shore A scale hardness polymer. A collet is carried and driven by the bladder for gripping engagement with the workpiece. | 10-07-2010 |
| 20120133103 | FIXTURE FOR SECURING A THIN-WALLED COMPONENT - A fixture for securing a cylindrical or shell thin-walled component includes a support having one or more securing devices for securing the component to the support. The fixture also includes an inflatable pressure element which, in use, is positioned within the secured component and is adapted to press outwardly, when inflated, against a liner inserted between the pressure element and the inner thin wall of the component. The liner has one or more elastic members, which bias it against the outward expansion of the inflated pressure element. The inflated pressure element and the liner damp vibrations in the component during machining of the outer side of the thin wall. | 05-31-2012 |
| 279200090 | Expanding jaws via mechanical connection | 5 |
| 20090079142 | Rapid Clamping System - The invention relates to a rapid clamping system ( | 03-26-2009 |
| 20100090419 | Gripping Method for Turbocharger Housing and Work Gripping Device | 04-15-2010 |
| 20110057397 | Chuck with jaws moved radially outwardly for clamping - The invention relates to a chuck comprising a chuck casing ( | 03-10-2011 |
| 20120056387 | Device for Clamping a Workpiece Holder to a Collet Chuck that can be Fixed to a Machine Tool - The invention relates to a device for clamping a workpiece holder ( | 03-08-2012 |
| 20170232620 | Quick Disconnect Apparatus for Modular Tooling | 08-17-2017 |
| 279200100 | Axially moving actuator | 7 |
| 20140203524 | Clamping Device - A clamping means in the type of an outer clamping means or an inner clamping means for fixed-clamping of work pieces, for the purpose of rotative processing. For achieving a radial displaceability of the clamping segments thereof, an inclined guide surface of a clamping sleeve or of a clamping mandrel with correspondingly inclined slide surfaces on the clamping segments are used. For the application of force into the clamping segments, at least one coupling element is provided on the housing or on the actuation member. The clamping element is axially fixed to the housing or to the actuation member and engages with at least one clamping segment axially in a form-fit manner in a coupling region between an in axial direction distal guide surface region of the guide surface and an in axial direction proximal guide surface region of the guide surface. | 07-24-2014 |
| 20160052063 | Clamping Device - A clamping device for releasably holding a tool holder shank is formed with an engagement bore in a rear end, and includes a housing having a bore in a forward end for receiving the tool holder shank, a drawbar reciprocally movable inside the housing and which in a forward end is provided with engagement means arranged to engage with an engagement formation inside the engagement bore of the tool holder shank, and which is formed with a drawbar aperture extending through the drawbar in a transverse direction of the same, and a cam shaft extending through the drawbar aperture. The cam shaft includes three cam formations and more precisely first and second spaced apart cam formations, which are journalled in seating apertures in the housing on opposite sides of the drawbar, and an intermediate third cam formation located between the first and second cam formations and positioned within the aperture of the drawbar. The drawbar is insertable into the bore from the forward end. | 02-25-2016 |
| 279200110 | Wedge | 2 |
| 20090322041 | Rotating Coupling for Robotic Tool Changer with Actuation Mechanism - In a robotic tool coupler, a rotating cam surface ring having a plurality of surfaces formed therein urges a plurality of ball members in one tool coupling unit radially to contact a coupling surface in the other tool coupling unit. Mechanical energy captured and stored upon decoupling the units is used by an actuation mechanism, upon manual initiation, to at least partially automatically couple the two units by partially rotating the rotating cam surface ring. Further manual rotation of the cam member exerts a radial force through the ball members onto the coupling surface. A component of that force is directed by the coupling surface toward the opposite tool coupling unit, locking the two units together. | 12-31-2009 |
| 20140353930 | APPARATUS AND METHOD FOR CLAMPING A COMPONENT ON A ROTATING MACHINE PART - An apparatus for clamping a component on a rotating machine part, in particular a balancing machine, having a basic body, having a clamping mandrel, which is arranged in an axially displaceable manner within the basic body, and having a plurality of clamping devices, which can be moved between a release position and a clamping position by axial displacement of the clamping mandrel. In order to make it possible for components to be clamped centrally with repeated accuracy, the clamping devices are designed as clamping segments which can be displaced radially in relation to the centre axis of the basic body above the latter. | 12-04-2014 |
| 279200170 | Axially compressible element expands radially | 3 |
| 20090051128 | Chuck and rotary orienting device - Disclosed is a chuck comprising a base ( | 02-26-2009 |
| 20090174156 | EXPANDABLE CHUCK - The process provides an expandable chuck with a variable diameter bulb having a variable wall thickness, the chuck being operatively designed to stretch the bulb to reduce its diameter for insertion into a photoreceptor pipe and upon relaxation to the compress the bulb so as to increased diameter. The design provides a universal chuck to reduce the cost of changing to different diameter chucks in accommodating different size photoreceptors during the coating and drying process. | 07-09-2009 |
| 20160375507 | POWER MILLING MACHINE - A milling apparatus has a housing, a drive shaft extending along and rotatable about an axis in the housing and an axially compressible and radially expansible washer stack on the front end of the drive shaft. A tool is held by the on the shaft. A bolt projects radially in a slot through the shaft and is limitedly axially displaceable in the shaft. An actuator element shiftable axially in the passage projects axially forward out of the drive shaft and is fixed in the bolt. A clamping assembly axially compresses and radially expands the stack so as to lock the tool to the drive shaft. A spring assembly is braced axially forward against the housing and axially rearward against the bolt. A piston axially displaceable on the drive shaft in the housing bears axially forward on the bolt. | 12-29-2016 |
| 279200190 | Rotary actuator | 1 |
| 20130292914 | Expandable Core Chuck - An expandable core chuck includes a housing having a plurality of slots and a plurality of expansion plates movable radially outwardly from the housing to engage the interior surface of an article to be gripped. Outward movement of the expansion plates is effected by means of a camshaft and rotation of the camshaft. | 11-07-2013 |
