摘要:
A coolant nozzle carrier for use with a grinding machine that has a grinding spindle for supporting and driving a grinding disc with a rotational axis. The coolant nozzle carrier comprises at least two coolant nozzles and at least a center leg and two side legs that are attached to the center leg. Each of the side legs supports at least one nozzle and extends in a plane that is perpendicular to the rotational axis. The side legs are configured to accommodate the grinding disc in between the side legs with a moving gap defined between the grinding disc and the side legs.
摘要:
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 with a centrally disposed recess formed in the bottom surface of the grinding section; 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 and provide axial and radial support and retaining means for detachably connecting the grinding cup to the output drive shaft 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.
摘要:
A device for calibrating a drill bill of a chuck includes an intermediate sleeve including two rear curved elements, a front shoulder, internal threads rearward of the shoulder, and an externally threaded extension projecting out of a front end; a front window including a diametrical calibrating line; an externally threaded rim secured to the internal threads to urge the window against the shoulder; and a ring having internal threads secured to the extension. A fastening of the chuck and the device, a loosening of the retainer ring, and a rotation of the rear holding member to rotate the drill bill can align the drill bill with the calibrating line.
摘要:
The invention relates to a reaming tool, comprising a rotationally drivable main body (16) and at least one cutting body (18) fastened thereto. The at least one cutting body has at least one reaming blade (26) at the edge of a rake face (28). According to the invention, a chip-forming step (32) and/or chip-breaking elements (34) are formed in the rake face (28) and the reaming blade (26) has a ground cutting edge (40, 42, 44).
摘要:
A device for dressing a tool having a plurality of teeth, wherein said device comprises a support surface having guiding elements, said guiding elements having at least two movable positioning elements, said movable positioning elements being adapted to be locked in a fixed position within said guiding elements such that said positioning elements form a stop for said tool; and a dressing tool mounted in a holding device positioned in front of a dressing side of said support surface, wherein said dressing tool is locked in position by a locking element during the dressing of said teeth, hence said dressing tool not being movable at least in a direction running substantially parallel to said dressing side; wherein said positioning elements are arranged in said guiding elements in said support surface such that said tool to be dressed engages with said positioning elements at its side turned towards said dressing side of said support surface, so that said tool can be moved towards said positioning elements by a feed movement proceeding in a feed direction starting from a feed side of the support surface, said feed side being located opposite said dressing side of said support surface, and being directed towards said dressing side; and wherein said engagement between said positioning elements and said tool can be discontinued by a return movement of said tool, said movement being oppositely directed to said feed movement.
摘要:
A dual-head grinding drill machine and a grinding method that include two grinding bases on both ends of a motive power source and each having a grinding wheel. A fixing device separately aligns a left or a right drill or a mill, such that the knives into blade directions can perform a grinding operation on the same grinding machine. A pneumatic motor is installed to match with a sucking passage for discharging drill bits from the positions of two grinding wheels, so as to achieve an extensive applicability and an environmental protection effect. The multi-axis deflective and bias design of the grinding base provides a diversified grinding design for grinding a blade stationary point for different requirements and a blade belly with a different curvature.
摘要:
A completely automated apparatus for verifying the identity and geometry of drill bits, re-sharpening the cutting tip of a drill bit and re-positioning a locating ring upon the shank portion of the drill bit subsequent to the re-sharpening of the cutting tip thereof. The apparatus comprises a housing having a pair of cassette trays, a pair of grinding assemblies, a pair of optical assemblies, a pair of primary cleaning assemblies, a pair of secondary cleaning assemblies, a pair of inversion assemblies, a pair of workhead assemblies, a bumping assembly, and a loader assembly attached thereto. The workhead and loader assemblies are used to transport drill bits between the cassette trays and other assemblies in a selected sequence which is controlled and coordinated by a programmable control device. The control device is electrically interfaced to each of the assemblies and allows the cutting tip re-sharpening and locating ring re-positioning processes to be conducted simultaneously on at least two drill bits.
摘要:
A drill sharpener is provided which has a point-splitting port which simplifies the procedure for producing a split point on a drill bit undergoing sharpening. The point-splitting port is positioned relative to a grinding wheel assembly such that, when the drill held by a chuck is advanced toward the grinding wheel, a flute of the drill at the drill tip is brought into contact with the grinding wheel. The port has alignment stops therein which mate with flats provided on the barrel of the chuck to ensure proper alignment of the chuck and drill relative to the grinding wheel. The stops also limit the extent of inward travel of the chuck and drill to a predetermined distance. A debris or grit collection tube is also provided to be inserted into an unused port of the drill sharpener, to contain and confine any debris or grit attempting to exit the sharpener through the unused port.
摘要:
A machine tool is provided, especially a multiple station grinding machine for the production of drill bits and similar elongate workpieces, which has at least one axially displaceable and rotatable workpiece holder which has its axial displacement and rotation drive in a sealed-off housing, at least one working tool arranged in a sealed-off working space, a sealing separation wall between the housing and the working space, at least one guide conduit arranged in sealing relationship in the separation wall for receipt of the workpiece holder, and guide elements for the workpiece disposed at the end of the guide conduit which extends into the working space.
摘要:
A completely automated apparatus for verifying the identity and geometry of drill bits, re-sharpening the cutting tip of a drill bit and re-positioning a locating ring upon the shank portion of the drill bit subsequent to the re-sharpening of the cutting tip thereof. The apparatus comprises a housing having a pair of cassette trays, a pair of grinding assemblies, a pair of optical assemblies, a pair of primary cleaning assemblies, a pair of secondary cleaning assemblies, a pair of inversion assemblies, a pair of workhead assemblies, a bumping assembly, and a loader assembly attached thereto. The workhead and loader assemblies are used to transport drill bits between the cassette trays and other assemblies in a selected sequence which is controlled and coordinated by a programmable control device. The control device is electrically interfaced to each of the assemblies and allows the cutting tip re-sharpening and locating ring re-positioning processes to be conducted simultaneously on at least two drill bits.