Grinding tools for grinding machines; grinding cups for detachable connection to a grinding machine for sharpening tungsten carbide buttons on rock drill bits, tunnel boring machine cutters and raised bore machine cutters.
Grinding tools for grinding machines; grinding cups for detachable connection to a grinding machine for sharpening tungsten carbide buttons on rock drill bits, tunnel boring machine cutters and raised bore machine cutters
(1) Grinding tools for grinding machines
(2) Grinding cups for detachable connection to a grinding machine for sharpening tungsten carbide buttons on rock drill bits, tunnel boring machine cutters and raised bore machine cutters
The present disclosure provides a Grinding apparatus for grinding working tips of hard metal inserts of rock drill bits, comprising: a grinding machine, means for holding a rock drill bit to be ground and a support system, the support system, the grinding machine equipped with a spindle assembly having an output drive shaft having a longitudinal axis, one of a plurality of grinding tools of different sizes and profiles detachably connected to the output drive shaft for grinding different sizes and profiles of working tips; and having a control system having a programmable operator control panel capable of directly or indirectly monitoring and adjusting one or more operational parameters, a programmable control card provided having a circuit board containing a central processor, an RFID reader provided within operator control panel together with a touch screen display wherein when the free end of a grinding cup equipped with an RFID tag in accordance with present invention is inserted into the RFID reader a proximity sensor detects the RFID tag and scans the data on the tag wherein the data includes a specific ID identifier for the particular grinding cup and the number of grinding cycles over which it has been used to date.
The present disclosure provides a grinding cup for detachable connection to the output drive shaft of a grinding machine for grinding buttons on drill bits or cutters. The grinding cup has top and bottom surfaces and consists of a lower grinding section and an upper body section co-axial with the grinding section to form a grinding cup with a centrally disposed recess formed in the bottom surface of the grinding section having the desired profile for the button to be ground. The improvement of the present invention is characterized by the upper body section having a centrally disposed upright drive section sized and shaped to fit within a co-axial recess in a free end of the output drive shaft. The upright drive section has a first support section extending from a top surface of the upper body section and a co-axial drive section on the upright drive section extending from a top surface of the first support section to a free end of the upper drive section. The co-axial drive section has a lower cam portion with an elliptical cross section, shaped and sized to fit within a corresponding pair of lobed grooves in a sidewall of the co-axial recess in the output drive shaft and an upper portion, co-axial with the lower cam portion having a circular cross-section slightly less than the diameter of an upper portion of the co-axial recess in the output drive shaft. Retaining means for detachably connecting the grinding cup to the output drive shaft of the grinding machine are provided on the upright drive section, preferably on or in association with the first support section.
The present disclosure provides a grinding cup for detachable connection to the output drive shaft of a grinding machine for grinding buttons on drill bits or cutters. The grinding cup has top and bottom surfaces and consists of a lower grinding section and an upper body section co-axial with the grinding section to form a grinding cup with a centrally disposed recess formed in the bottom surface of the grinding section having the desired profile for the button to be ground. The improvement of the present invention is characterized by the upper body section having a centrally disposed upright drive section sized and shaped to fit within a co-axial recess in a free end of the output drive shaft. The upright drive section has a first support section extending from a top surface of the upper body section and a co-axial drive section on the upright drive section extending from a top surface of the first support section to a free end of the upper drive section. The co-axial drive section has a lower cam portion with an elliptical cross section, shaped and sized to fit within a corresponding pair of lobed grooves in a sidewall of the co-axial recess in the output drive shaft and an upper portion, co-axial with the lower cam portion having a circular cross-section slightly less than the diameter of an upper portion of the co-axial recess in the output drive shaft. Retaining means for detachably connecting the grinding cup to the output drive shaft of the grinding machine are provided on the upright drive section, preferably on or in association with the first support section.
B24D 7/00 - Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front faceBushings or mountings therefor
B24B 19/00 - Single purpose machines or devices for particular grinding operations not covered by any other main group
The present disclosure provides a grinding cup for detachable connection to the output drive shaft of a grinding machine for grinding buttons on drill bits or cutters. The grinding cup has top and bottom surfaces and consists of a lower grinding section and an upper body section co-axial with the grinding section to form a grinding cup with a centrally disposed recess formed in the bottom surface of the grinding section having the desired profile for the button to be ground. The improvement of the present invention is characterized by the upper body section having a centrally disposed upright drive section sized and shaped to fit within a co-axial recess in a free end of the output drive shaft. The upright drive section has a first support section extending from a top surface of the upper body section and a co-axial drive section on the upright drive section extending from a top surface of the first support section to a free end of the upper drive section. The co-axial drive section has a lower cam portion with an elliptical cross section, shaped and sized to fit within a corresponding pair of lobed grooves in a sidewall of the co-axial recess in the output drive shaft and an upper portion, co-axial with the lower cam portion having a circular cross-section slightly less than the diameter of an upper portion of the co-axial recess in the output drive shaft. Retaining means for detachably connecting the grinding cup to the output drive shaft of the grinding machine are provided on the upright drive section, preferably on or in association with the first support section.
B24D 7/00 - Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front faceBushings or mountings therefor
B24B 19/00 - Single purpose machines or devices for particular grinding operations not covered by any other main group
The present disclosure provides a Grinding apparatus for grinding working tips of hard metal inserts of rock drill bits, comprising: a grinding machine, means for holding a rock drill bit to be ground and a support system, the support system, the grinding machine equipped with a spindle assembly having an output drive shaft having a longitudinal axis, one of a plurality of grinding tools of different sizes and profiles detachably connected to the output drive shaft for grinding different sizes and profiles of working tips; and having a control system having a programmable operator control panel capable of directly or indirectly monitoring and adjusting one or more operational parameters, a programmable control card provided having a circuit board containing a central processor, an RFID reader provided within operator control panel together with a touch screen display wherein when the free end of a grinding cup equiped with an RFID tag in accordance with present invention is inserted into the RFID reader a proximity sensor detects the RFID tag and scans the data on the tag wherein the data includes a specific ID identifier for the particular grinding cup and the number of grinding cycles over which it has been used to date.
The present disclosure provides a Grinding apparatus for grinding working tips of hard metal inserts of rock drill bits, comprising: a grinding machine, means for holding a rock drill bit to be ground and a support system, the support system, the grinding machine equipped with a spindle assembly having an output drive shaft having a longitudinal axis, one of a plurality of grinding tools of different sizes and profiles detachably connected to the output drive shaft for grinding different sizes and profiles of working tips; and having a control system having a programmable operator control panel capable of directly or indirectly monitoring and adjusting one or more operational parameters, a programmable control card provided having a circuit board containing a central processor, an RFID reader provided within operator control panel together with a touch screen display wherein when the free end of a grinding cup equiped with an RFID tag in accordance with present invention is inserted into the RFID reader a proximity sensor detects the RFID tag and scans the data on the tag wherein the data includes a specific ID identifier for the particular grinding cup and the number of grinding cycles over which it has been used to date.
The present disclosure provides a grinding cup for detachable connection to the output drive shaft of a grinding machine for grinding buttons on drill bits or cutters. The grinding cup has top and bottom surfaces and consists of a lower grinding section and an upper body section co-axial with the grinding section to form a grinding cup with a centrally disposed recess formed in the bottom surface of the grinding section having the desired profile for the button to be ground. The improvement of the present invention is characterized by the upper body section having a centrally disposed upright drive section sized and shaped to fit within a co-axial recess in a free end of the output drive shaft. The upright drive section has a first support section extending from a top surface of the upper body section and a co-axial drive section on the upright drive section extending from a top surface of the first support section to a free end of the upper drive section. The co-axial drive section has a lower cam portion with an elliptical cross section, shaped and sized to fit within a corresponding pair of lobed grooves in a sidewall of the co-axial recess in the output drive shaft and an upper portion, co-axial with the lower cam portion having a circular cross-section slightly less than the diameter of an upper portion of the co-axial recess in the output drive shaft. Retaining means for detachably connecting the grinding cup to the output drive shaft of the grinding machine are provided on the upright drive section, preferably on or in association with the first support section.
B24D 7/00 - Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front faceBushings or mountings therefor
B24B 19/00 - Single purpose machines or devices for particular grinding operations not covered by any other main group
A grinding apparatus for grinding the hard metal inserts of rock drill bits, said grinding apparatus having a grinding machine carried on an support system and means for holding one or more bits to be ground, said grinding machine equipped with a grinding cup driven by a motor to rotate about its longitudinal axis, wherein the support system comprises an arm or lever system to control movement of the grinding machine for alignment of the grinding machine with a hard metal insert to be ground, means to provide grinding pressure, means to monitor and control one or more operational functions of the grinding apparatus selected from the group consisting of force, grinding pressure, movement and speed of movement of the grinding machine during alignment with a hard metal insert wherein the means for holding one or more rock drill bits to be ground has one or more apertures to hold one or more rock drill bits to be ground includes a moveable floor plate for each aperature to support a free end of a shank on the bit to be held in the aperature
Grinding machines for sharpening tungsten carbide buttons in the nature of cutting teeth on drill bits for percussive or rotary rock drilling, tunnel boring machine cutters and raised bore machine cutters; machine parts, namely, grinding cups for detachable connection to a grinding machine for sharpening tungsten carbide buttons in the nature of cutting teeth on rock drill bits, tunnel boring machine cutters and raised bore machine cutters
(1) Grinding machines for sharpening tungsten carbide machine tools, tungsten carbide buttons on drill bits for rock drilling (percussive or rotary), tunnel boring machine cutters and raised bore machine cutters; machine parts, namely, grinding cups for detachable connection to a grinding machine for sharpening tungsten carbide buttons on rock drill bits, tunnel boring machine cutters and raised bore machine cutters.
Grinding machines for sharpening tungsten carbide machine tools, tungsten carbide buttons on drill bits for rock drilling (percussive or rotary), tunnel boring machine cutters and raised bore machine cutters; machine parts, namely, grinding cups for detachable connection to a grinding machine for sharpening tungsten carbide buttons on rock drill bits, tunnel boring machine cutters and raised bore machine cutters.
The present disclosure relates to grinding apparatus for grinding the hard metal inserts of rock drill bits, said grinding apparatus having said grinding machine equipped with a grinding cup driven by a motor to rotate about its longitudinal axis wherein the support system comprises an arm or lever system to control vertical movement of the grinding machine and means to provide grinding pressure, wherein the means to provide grinding pressure may be a linear actuator and load cell assembly pivotally connected to the arm or lever system.
B24B 49/00 - 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
B24B 49/16 - 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 taking regard of the load
B24B 51/00 - Arrangements for automatic control of a series of individual steps in grinding a workpiece
B24B 3/33 - Sharpening cutting edges, e.g. of toolsAccessories therefor, e.g. for holding the tools of drills of drills for stone
B24B 55/02 - Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant
The present disclosure provides a grinding cup for detachable connection to the output drive shaft of a grinding machine for grinding buttons on drill bits or cutters, said grinding cup having top and bottom surfaces and consisting of a lower grinding section and an upper body section co-axial with said grinding section to form said grinding cup with a centrally disposed recess formed in the bottom surface of the grinding section having the desired profile for the button to be ground; the improvement characterized by said body section having a centrally disposed upright drive section formed on the top surface of the grinding cup, said drive section shaped and sized to both driveably engage within a corresponding recess at end of the output drive shaft of said grinding machine and provide axial and radial support and retaining means for detachably connecting the grinding cup to the output drive shaft of the grinding machine wherein said drive section has a non-circular cross section and is tapered from the top surface of the grinding cup to the free end of the drive section.
B24B 11/10 - Machines or devices designed for grinding spherical surfaces or parts of spherical surfaces on workAccessories therefor for grinding balls involving grinding wheels of cup type
B23P 15/28 - Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
The present disclosure relates to grinding apparatus for grinding the hard metal inserts of rock drill bits, said grinding apparatus having said grinding machine equipped with a grinding cup driven by a motor to rotate about its longitudinal axis wherein the support system comprises an arm or lever system to control vertical movement of the grinding machine and means to provide grinding pressure, wherein the means to provide grinding pressure may be a linear actuator and load cell assembly pivotally connected to the arm or lever system.
B24B 49/10 - 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 electrical means
B23Q 15/12 - Adaptive control, i.e. adjusting itself to have a performance which is optimum according to a preassigned criterion
B24B 3/24 - Sharpening cutting edges, e.g. of toolsAccessories therefor, e.g. for holding the tools of drills
B24B 3/60 - Sharpening cutting edges, e.g. of toolsAccessories therefor, e.g. for holding the tools of tools not covered by the preceding subgroups
B24B 19/00 - Single purpose machines or devices for particular grinding operations not covered by any other main group
B24B 55/02 - Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant
The present disclosure relates to grinding apparatus for grinding the hard metal inserts of rock drill bits, said grinding apparatus having said grinding machine equipped with a grinding cup driven by a motor to rotate about its longitudinal axis wherein the support system comprises an arm or lever system to control vertical movement of the grinding machine and means to provide grinding pressure, wherein the means to provide grinding pressure may be a linear actuator and load cell assembly pivotally connected to the arm or lever system.
B24B 49/10 - 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 electrical means
B23Q 15/12 - Adaptive control, i.e. adjusting itself to have a performance which is optimum according to a preassigned criterion
B24B 19/00 - Single purpose machines or devices for particular grinding operations not covered by any other main group
B24B 3/24 - Sharpening cutting edges, e.g. of toolsAccessories therefor, e.g. for holding the tools of drills
B24B 3/60 - Sharpening cutting edges, e.g. of toolsAccessories therefor, e.g. for holding the tools of tools not covered by the preceding subgroups
B24B 55/02 - Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant
19.
Manual locking means for bit holder with micro/macro adjustment
A locking means for a bit holder fixture for use with grinding apparatus for grinding the hard metal inserts of rock drill bits is provided. The locking means has a macro adjustment for quick positioning of a pressure plate against the body of the bit(s) and a micro adjustment to lock the bit(s) in place by applying pressure against the skirt or shank of the drill bit(s).
A clamping means for a bit holder fixture for use with a grinding apparatus for grinding the hard metal inserts of rock drill bits is provided. The clamping means has a quick positioning adjustment to bring a pressure plate against the body of the bit(s) and a fine adjustment to clamp the bit(s) in place by applying pressure against the skirt or shank of the drill bit(s).
A clamping means for a bit holder fixture for use with a grinding apparatus for grinding the hard metal inserts of rock drill bits is provided. The clamping means has a quick positioning adjustment to bring a pressure plate against the body of the bit(s) and a fine adjustment to clamp the bit(s) in place by applying pressure against the skirt or shank of the drill bit(s).
