Abstract

A method (100) and device (1) for laser machining a defined cutout in a workpiece (10), comprising generating a laser beam (20) propagating through a scanning unit (4) along a scanner axis (34), providing the workpiece (10) which is supported and held in a holder (11), and which is positionable relative to the scanner axis (34). The method further comprises defining a machining volume (22) of the workpiece (10) having a surface area (30) and a depth (d), determining a first relative position between the machining volume (22) and the scanner axis (34) in which the scanner axis (34) is orientated approximate perpendicular to a surface (21) of the machining volume (22), and positioning the workpiece (10) and/or the scanner axis (34) in the first relative position, and directing the laser beam (20) onto the machining volume (22) within the surface area (30), causing relative motion between the workpiece (10) and the laser beam (20), and scanning the laser beam (20) along a first cutting path (29). The removal of the first machining volume (22) results in a first cutout (25) with a first side wall (24) having a first taper characteristic (23). The method further includes defining a second machining volume (26) including the first side wall (24) and limited partly by a second side wall (27) with a predetermined characteristic (28), determining a second relative position between the second machining volume (26) and the scanner axis (34) and positioning the workpiece (10) and/or the scanner axis (34) in said second relative position, and orientating the scanner axis (34) relative to the workpiece (10) under a predetermined tilt angle (ß), directing the laser beam (20) onto the second machining volume (26), scanning the laser beam (20) along a second cutting path (36), and removing at least part of the second machining volume (26) to form the second side wall (27).

IPC Classes  ?

• B23K 26/364 - Laser etching for making a groove or trench, e.g. for scribing a break initiation groove
• B23K 26/082 - Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head
• B23K 26/40 - Removing material taking account of the properties of the material involved

Goods & Services

Machines and machine tools, including high-precision machine tools, trueing machines for tools; non-hand-operated tools, including stamping-out tools, ball guides and roller guides, column blocks, diamond grinding wheels; tools (parts of machines); injection molding tools; high-precision instruments (tools) being parts of machines for the machines industry; components and spare parts included in this class for all the aforesaid goods. Control software for machines and machine tools; computers and software, including peripheral apparatus and instruments, for use with machines and machine tools; computer-aided design/computer-aided manufacturing (CAD/CAM) software; high-precision measuring apparatus; measuring instruments for tools; components and spare parts included in this class for all the aforesaid goods. Installation, commissioning, repair and servicing of machines and machine tools. Custom manufacture of tools and machine tools for third parties. Training, teaching and further training in relation to machine tools, including personnel training. Scientific and industrial research in the field of machine tools; technical design and planning of machine tools; development and further development of data processing apparatus, computers and computer programs for controlling machine tools; services of a mechanical engineer; technical consulting with respect to machine tools; Software as a Service (SaaS).

Abstract

Workpiece holder (3) for coupling a workpiece (2) provided with reference surfaces (30) to a machining device (200) for manufacturing a rotational-symmetrical tool (1) with at least one geometrically defined cutting edge (10), the workpiece holder (3) comprises a machine part (31) configured to be connectable to the machining device (200) in a releasable rotationally fixed manner, a clamping part (32) configured to receive and clamp the workpiece (2) in a releasable manner. The clamping part (32) of the workpiece holder (3) comprises at least one slot (40) provided at a circumference thereof and configured to provide access to the reference surfaces (30) of the clamped workpiece (2) therethrough.

IPC Classes  ?

• B24B 41/04 - HeadstocksWorking-spindlesFeatures relating thereto

Abstract

The present invention relates to a guiding and centering device (10) for a forming tool (2), in particular an injection molding or die-casting tool, comprising a first mold half (1) and a second mold half (5) which are guided by guide means (7) from a closed position in which the respective separating surfaces of both mold halves (1; 5) are pressed against one another into an opened position and vice versa. This guiding and centering device (10) comprises a protruding guiding body (4) formed as a circular cylindrical bolt (12) provided at the first mold half (1), a guiding recess (6) formed as a bush (14) with an circular cylindrical inner surface (20) provided at the second mold half (5) and a rolling element cage (16) with rolling elements (17) inserted in rows (18), by means of which the two mold halves (1; 5) are guided and precisely centered in the closed position. The rolling element cage (16) is supported by the circular cylindrical inner surface (20) of the bush (14) and positioned via positioning means (30) in such a way that when closing the forming tool the circular cylindrical bolt (12) runs practically simultaneously in a first row of rolling elements (18.1) and a second row of rolling elements (18.2) of the rolling element cage (16).

IPC Classes  ?

• B29C 45/26 - Moulds

Abstract

System for measuring misalignment of a tool (2) in a press device (1), the tool (2) comprises at least a first part (3) and a second part (4), which are movable relative to another in a guided manner by means of guide means comprising at least a guide pillar (10) provided in the first part (3) which is led in a guide bush (12) provided in the second part (4), wherein the system comprises measuring means (20) provided to detect misalignment of the tool (2). According to the invention, the measuring means (20) are mounted directly at the guide means.

IPC Classes  ?

• B23Q 17/22 - Arrangements for indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work
• B23Q 17/00 - Arrangements for indicating or measuring on machine tools
• B23Q 17/24 - Arrangements for indicating or measuring on machine tools using optics

Abstract

A clamping device for holding a workpiece, in particular a cutting tool, during machining in a grinding machine, wherein peripheral grinding of the workpiece is performed by means of a particularly approximately cup-shaped grinding wheel, wherein the clamping device comprises a support unit provided to be mounted on the grinding machine, a clamping unit comprising a clamping anvil supported in a clamping anvil holding element and translationally drivable to apply a clamping force parallel to a clamping axis, and a drive unit comprising a drive anvil supported in a drive axis and rotationally drivable for rotary orientating the workpiece by means of the drive axis. The clamping unit and the drive unit are provided as individual components, which are releasably or slidably attached to the support unit to form a workpiece spindle headstock of the grinding machine.

IPC Classes  ?

• B24B 41/06 - Work supports, e.g. adjustable steadies
• B24B 3/34 - Sharpening cutting edges, e.g. of toolsAccessories therefor, e.g. for holding the tools of turning or planing tools or tool bits, e.g. gear cutters
• B24B 5/02 - Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfacesAccessories therefor involving centres or chucks for holding work
• B24B 5/04 - Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfacesAccessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces externally
• B24B 49/04 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or workArrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent involving measurement of the workpiece at the place of grinding during grinding operation
• B25B 1/10 - Arrangements for positively actuating jaws using screws
• B24B 49/12 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or workArrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving optical means

Abstract

A tool device (1) for machining a workpiece (4) by cutting, milling, drilling or grinding, comprising a sensor (20) for detecting a condition of the tool device (1) during machining, wherein the sensor (20) is connectable to a receiving unit (40), which transmits data to an analysis unit (50) for analyzing the received data. The sensor (20) is configured as a fiber optic sensor (20) comprising at least one optical fiber (26) providing an incident optical path (22) and a reflected optical path (24) for a light beam emitted by a connectable light source (30) and with a distal end thereof lying in a surface (14, 74) of the tool device (1) such that the optical path length can be measured.

IPC Classes  ?

• B23Q 17/24 - Arrangements for indicating or measuring on machine tools using optics
• B23Q 17/09 - Arrangements for indicating or measuring on machine tools for indicating or measuring cutting pressure or cutting-tool condition, e.g. cutting ability, load on tool
• B24B 49/02 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or workArrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent
• B24B 49/12 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or workArrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving optical means

Abstract

A method for multistep machining a cutting tool includes defining a data set of the cutting tool, positioning the workpiece in a machining device, determining a data set of the workpiece to be machined, defining at least one machining program based on the defined data set in relation to the determined data set of the workpiece, subjecting the workpiece to the at least one machining program, to obtain intermediate geometries of the workpiece, determining a second data set by measuring means including the intermediate geometries of the workpiece and transferring the machined workpiece to a second machining device. Furthermore, the steps of positioning, determining data set of the workpiece, defining machining program, subjecting the workpiece to the machining program, determining a second data set and transferring to the second machining device are repeated until the workpiece takes on the shape of the target geometries.

IPC Classes  ?

• B23P 15/34 - Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools milling cutters
• G05B 19/4097 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by using design data to control NC machines, e.g. CAD/CAM
• G05B 19/18 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
• B23P 15/28 - Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
• G05B 19/401 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for measuring, e.g. calibration and initialisation, measuring workpiece for machining purposes

Abstract

The present invention relates to a laser machining system (1) with a control unit (30), a laser ablation apparatus (10) and a gas supply (40), wherein the laser ablation apparatus (10) comprises a laser (12) for generating a laser beam (14), a laser head (16) including a re-directing arrangement (18) for directing the laser beam (14) of the laser (12) onto a surface (20) of a workpiece (22) to be machined, wherein the workpiece (22) is disposed in an accommodation device (26), placed in a working chamber (28), wherein a positioning arrangement (32) is provided for a relative movement between the laser head (16) and the workpiece (22) and wherein the working chamber (28) comprises at least one inlet (46) and at least one outlet (48) for a gas. The gas supply (40) of the laser machining system (1) is configured to provide a flow of the gas in the working chamber (28) and a temperature system (11) is provided to adjust the temperature of the gas flow (44).

IPC Classes  ?

• B23K 26/362 - Laser etching
• B23K 26/14 - Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beamNozzles therefor
• B23K 26/03 - Observing, e.g. monitoring, the workpiece
• B23K 26/12 - Working by laser beam, e.g. welding, cutting or boring in a special environment or atmosphere, e.g. in an enclosure
• B23K 37/00 - Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass
• B23K 26/08 - Devices involving relative movement between laser beam and workpiece
• B23K 26/40 - Removing material taking account of the properties of the material involved
• B23K 26/00 - Working by laser beam, e.g. welding, cutting or boring
• B23K 26/361 - Removing material for deburring or mechanical trimming

Goods & Services

(1) Precision machines and machine tools, namely, grinding machines for hard and super-hard materials, grinding tools for grinding machines, grinding attachments, loading systems for grinding special tools, die sets and standard parts, ball and roller bearings, guide elements, and components, spare parts for all of the aforementioned goods (2) Computer software for monitoring, controlling and operating machine tools, namely grinding machines for indexable insert production machines and laser ablation machines for indexable insert production, components and replacement parts for all the aforementioned goods; computer software for monitoring die sets and standard parts, ball and roller bearings, guide elements, centering systems, components and replacement parts for all the aforementioned goods; computers, components and replacement parts for all the aforementioned goods; peripheral apparatus for computers, namely mouses and keyboards, computer monitors; electronic high-precision measuring apparatus for measuring dimension, location and orientation of features of parts processes by grinding and laser ablation, components and replacement parts for all the aforementioned goods (1) Installation, setup, repair, maintenance and upgrading of grinding machines and grinding tools for grinding machines

Abstract

A grinding machine for grinding a workpiece comprises a machine frame, a bearing device provided on the machine frame and movable along guides, in which a cup-shaped grinding wheel is rotatably drivable about a grinding wheel axis and electrically insulated. The grinding wheel is electrically connected to a generator. The device for profile dressing, sharpening and cleaning the grinding wheel consists of a single cup-shaped electrode, which is drivable about its central axis and is placed on a slide, which allows a working gap to exist between the machining surface of the cup-shaped electrode and the annular abrasive surface. A spark erosion discharge occurs in the gap when a voltage is applied. The grinding wheel can thereby be optimally conditioned by electric discharge machining.

IPC Classes  ?

• B23K 9/00 - Arc welding or cutting

Goods & Services

Machines and machine tools, including high-precision machine tools, tool grinders; tools not manually controlled, including stamping tools, ball-mounted guides and roller guides, die sets, diamond-grinding wheels; high-precision instruments (tools) as machine parts; components and replacement parts for all the aforementioned goods. Software for controlling machines and machine-tools; computers and computer software, including peripheral apparatus and instruments, for use with machines and machine tools; high-precision measuring apparatus; components and replacement parts for all the aforementioned goods. Installation, setup, repair, maintenance and upgrading of machines and machine tools.