47results about "Milling equipments" patented technology

A power assisted drill press having a feed cylinder fed by a variable pressure regulator which allows a user to controllably feed a bit and work material together while activating a drill motor to rotate the bit. An embodiment of the power assisted drill press utilizes a suction cup and venturi system for attachment of the press to a surface work material. The drill press uniquely allows a person to variably activate the feed cylinder and also activate the drill motor with a single hand.

In a method and a bar blade for milling spiral bevel gears and hypoid gears, a shaft of the bar blade has a blade profile that is formed by the cross-section of at least one cutting area, at least two free areas, and at least one top area. The blade profile is provided with a first cutting edge for a first flank, a second cutting edge for a second flank that faces the first flank, and a top cutting edge for the bottom of a tooth space. The first and the second cutting edge are embodied as principal cutting edges for completely cutting the first or second flank. The top cutting edge is configured for completely cutting the bottom of the tooth space such that the tooth space comprising the complete final geometry is created in one milling process by means of one and the same bar blade.

Various embodiments include a rotor having a dovetail slot with a bulbous fillet region, and in some cases, recessed inclined bearing surfaces. Various embodiments include methods of forming such a slot in a turbomachine rotor.

An insert for a drill in which one of the cutting edges respectively formed at four side ridge portions of a rake face of a square flat plate-shaped insert body is made to protrude toward the tip of the drill body of the indexable insert drill while being detachably attached is provided. Each of the cutting edges has a corner cutting edge located at a corner of the rake face, and a major cutting edge and a wiper edge which extend substantially toward one peripheral direction of the rake face from a corner cutting edge. The major cutting edge has a first major cutting edge portion which has a convexly curved shape and extends from the corner cutting edge, and a second major cutting edge portion which smoothly touches the first major cutting edge portion and extends linearly, as seen from a direction facing the rake face. The wiper edge has a straight shape intersecting the second major cutting edge portion at an obtuse angle.

The present invention relates to a device for generating an ultrasonic vibration of a tool used for the ultrasonic machining of a workpiece and for measuring ultrasonic vibration parameters of the ultrasonic vibration of the tool having a tool holder for receiving the tool, an ultrasonic transducer in the tool holder for generating the ultrasonic vibration of the tool, a sensor mechanism in the tool holder for producing a sensor signal on the basis of the ultrasonic vibration of the tool, and a sensor signal evaluation device for evaluating the sensor signal.

The invention relates to a tool head (10) for use in machine tools, comprising a main body (12) which can be rotated around an axis of rotation (28). The tool head (10) has a slide (14). The slide (14) can be moved by means of a pull rod (30) axially oriented in the main body (12). The slide (14) can be fitted with at least one tool or one tool holder. At least one adjustable toothed plate (36, 38) is fixedly arranged on the slide (14). The toothed plate (36, 38) comprises a helical gearing (42, 44) functioning as a gear means for engaging with a helical gearing (44, 48) of the pull rod (30) which is complementary thereto. According to the invention, the slide (14) has an adjustment unit (66) for moving the at least one toothed plate (36, 38) and the helical gearing (42, 44) thereof into the complementary helical gearing (44, 48) of the pull rod (30).

Various embodiments include a rotor having a dovetail slot with a bulbous fillet region, and in some cases, recessed inclined bearing surfaces. Various embodiments include methods of forming such a slot in a turbomachine rotor.

A cutting insert according to one aspect has a flat plate shape including a first main surface having a polygonal shape, a second main surface located opposite to the first main surface, and an outer peripheral surface located between the first main surface and the second main surface. The cutting insert includes a cutting portion located in regions including at least a corner portion of the first main surface, and a main body portion located in a region other than the corner portion. A thickness of the main body portion is larger than a thickness of the cutting portions, and the main body portion includes a recessed portion or a protruding portion located in the outer peripheral surface thereof.

A drill includes a cutting edge having a ridgeline. The ridgeline has a part of an ellipse and a straight line. It is assumed that the coordinates of a separation point of an ellipse portion from a straight line portion are (x0, y0). The straight line is a tangent to the ellipse at the separation point. It is assumed that a1 is an area from a tip end of the drill to x0, a2 is an area from x0 to the origin of the ellipse, and a3 is a negative area, along the x-axis. The ridgeline of the cutting edge is formed straight along the tangent in the area a1, and is formed along the ellipse in the area a2. A margin is formed in the area a3 continuously from a relief face of the cutting edge.

The invention relates to a large aluminum piece milling and positioning clamp which comprises a plurality of first positioning blocks, a plurality of second positioning blocks and a plurality of third positioning blocks. The first positioning blocks, the second positioning blocks and the third positioning blocks are arranged side by side and provided with first steps, wherein the first steps are provided with kidney-shaped holes. The first positioning blocks and the second positioning blocks are provided with second steps, wherein ejection rods are installed on the second steps, and the bottom ends of the ejection rods are connected with a handle. The second steps of the first positioning blocks are provided with stopping blocks. The third positioning blocks consist of L-shaped positioning plates and flat plates which are connected fixedly, wherein the positioning plates are provided with adjusting bolts, and the flat plates are provided with flat plates. The large aluminum piece milling and positioning clamp further comprises a positioning part, wherein the positioning part is provided with a locking bolt. The large aluminum piece milling and positioning clamp is simple in structure, flexible and convenient to use and high in clamping efficiency, and the accuracy is easy to ensure.

The invention discloses a pneumatic chucking tool capable of milling two faces of a track link section piece. The pneumatic chucking tool comprises positioning pins 2 and a screw 1, wherein the positioning pins 2 are arranged on a positioning base 6 and located at the upper portion of the pneumatic chucking tool and the lower portion of the positioning base 6 respectively, and the screw 1 is arranged in the middle of the positioning base 6 and used for penetrating the track link section piece to be machined. The front end of the screw 1 penetrates through an L-shaped pressing plate 4 and is then connected with a nut 5 in a rotating mode. The rear end of the screw 1 is hinged to the middle of a lever 7. The lower end of the lever 7 is fixedly hinged to the positioning base 6. The upper end of the lever 7 is hinged to one end of a piston rod 9. A telescopic unit is arranged at the rear portion of the piston rod 9. By means of the pneumatic chucking tool, pressing is conducted according to the principle that the lever is pushed through three hinge points and an air cylinder, labor intensity is greatly lowered, and work efficiency is improved by more than one time; meanwhile, electricity is saved for an enterprise, losses are reduced, chucking can be conveniently conducted and is more stable compared with manual chucking, and product quality is guaranteed.

The invention provides a valve core end surface milling clamp which is simple in structure and convenient to use and can improve the processing efficiency. A valve core comprises a valve plate and two core shafts on the two sides of the valve plate. The valve core end surface milling clamp comprises a compound die composed of two half dies. The compound die is provided with a valve plate hole which is composed of half round holes in the two half dies. A core shaft hole is formed in each side of the valve plate hole and composed of half circles on the two half dies, and the axes of the core shaft holes are perpendicular to the axes of the round holes. A rotation-preventing column is arranged inside the valve plate hole. One half die is connected with a movable jaw of a jaw vice, and the other half die is connected with a fixed jaw of the jaw vice.

A method for machining a workpiece which can prevent a reduction in machining accuracy and production efficiency. The method includes pressing a clamp part against a first portion of the workpiece, to clamp the workpiece in cooperation with a workpiece receiving part, causing the clamp part to move away from the first portion, to release the workpiece, which has been clamped by the clamp part, operating a robot to cause a robot hand to grasp a second portion of the workpiece, which is different from the first portion, to restrict the movement of the workpiece relative to the workpiece receiving part without a change in the posture of the workpiece, and operating a machine tool to machine the first portion while restricting the movement of the workpiece relative to the workpiece receiving part.

The present invention relates to a device for generating an ultrasonic vibration of a tool used for the ultrasonic machining of a workpiece and for measuring ultrasonic vibration parameters of the ultrasonic vibration of the tool having a tool holder for receiving the tool, an ultrasonic transducer in the tool holder for generating the ultrasonic vibration of the tool, a sensor mechanism in the tool holder for producing a sensor signal on the basis of the ultrasonic vibration of the tool, and a sensor signal evaluation device for evaluating the sensor signal.

A cutting insert according to one aspect has a flat plate shape including a first main surface having a polygonal shape, a second main surface located opposite to the first main surface, and an outer peripheral surface located between the first main surface and the second main surface. The cutting insert includes a cutting portion located in regions including at least a corner portion of the first main surface, and a main body portion located in a region other than the corner portion. A thickness of the main body portion is larger than a thickness of the cutting portions, and the main body portion includes a recessed portion or a protruding portion located in the outer peripheral surface thereof.

The invention discloses an auxiliary clamp of a milling machine. The auxiliary clamp comprises a main body and a pushing portion matched with the main body and used for clamping workpieces, wherein the main body comprises a first inclined surface, the pushing portion comprises a second inclined surface, the first inclined surface is matched with the second inclined surface, and a pushing screw horizontally penetrates through the main body and the pushing portion to be connected with a manual knob. By means of the first inclined surface of the main body and the second inclined surface of the pushing portion, clamping on the workpieces can be achieved through meshing of the first inclined surface and the second inclined surface. Furthermore, by arranging the manual knob, users can increase clamping force during machining continuously, and machining precision is ensured further.

The invention relates to a datum plane and hole processing clamp for tricone bit legs. A blowhole positioning seat and a leg tip positioning component are relatively arranged in front and back. A clamping arm is arranged on the right side of the blowhole positioning seat, and a support screw is arranged on the left side of the blowhole positioning seat. A pressing block is arranged on the left side of the support screw, and bit legs are positioned on the support screw, the blowhole positioning seat and the leg tip positioning component. Leg tip support positioning points used for limiting the rotational degree of freedom of the bit legs on the X direction are arranged on the blowhole positioning seat and positioned at the non-trimming parts of the bit legs. Positioning points used for limiting the moving degree of freedom of the bit legs on the X direction and positioned at the non-trimming parts of the bit legs. The clamping arm is used for straining the root of a shaft head of each bit leg in a contacting manner, the support screw is used for supporting the front end part of each bit leg, and the pressing head of the pressing block is used for being pressed in a pulp hole in the end surface of a screw thread at the front end part of each bit leg. The positioning points completely avoid the trimming part of each bit leg, and the influence of the residual trimming of a bit leg forge piece on datum plane and hole processing of the bit legs is solved.

The invention discloses a tool capable of press fitting multiple parts simultaneously. The tool is characterized in that a tool plate and a bottom plate form a frame structure through four guide pillars; a movable plate is installed between the tool plate and the bottom plate, the movable plate is driven by a screw rod and is guided by the four guide pillars; a screw hole is formed in the centre of the movable plate, the thread end of the screw rod is installed in the screw hole, the other end of the screw rod is a step shaft, and the step shaft is installed in a circular hole formed in the center of the tool plate through a screw rod end cover and a bolt; a plurality of step holes are formed in the tool plate, each step hole is provided with a hexagonal locating pin with a through hole in the center, a compressing shaft penetrates through the central through holes of the hexagonal locating pins in a free fit mode and is in clearance fit with a plurality of through holes which are correspondent one to one in the movable plate, and the compressing shaft is installed on the movable plate through an elastic element and a nut; a limit bolt is installed on the base plate and plays the role of limiting position; the compressing shaft compresses parts through a pressing plate. The tool has the advantaged that multiple parts to be machined can be press fitted at one time, and the production efficiency is high.

Disclosed is a machine tool comprising: a base having a mounting space in which a workpiece is mounted, shaft holes formed in opposite wall surfaces thereof, and a pair of first shaft sliding parts facing each other on opposite sides of the mounting space; a saddle coupled to the first shaft sliding parts of the base so as to slide on a first shaft and having a pair of second shaft sliding parts facing each other in a direction intersecting the first shaft; a crosspiece coupled to the second shaft sliding parts of the saddle so as to slide on a second shaft and having a pair of third sliding parts facing each other in a direction perpendicular to a plane on which the first shaft and the second shaft are formed; a vertical ram coupled to the third shaft sliding parts of the crosspieces so as to slide in a direction perpendicular to a plane defined by the first shaft and the second shaft and having a tool for machining the workpiece mounted at an end thereof; and a table disposed in themounting space of the base and installed on the base so as to be rotatable relative to the base through shaft holes of the base.

The invention relates to a large aluminum piece milling and positioning clamp which comprises a plurality of first positioning blocks, a plurality of second positioning blocks and a plurality of third positioning blocks. The first positioning blocks, the second positioning blocks and the third positioning blocks are arranged side by side and provided with first steps, wherein the first steps are provided with kidney-shaped holes. The first positioning blocks and the second positioning blocks are provided with second steps, wherein ejection rods are installed on the second steps, and the bottom ends of the ejection rods are connected with a handle. The second steps of the first positioning blocks are provided with stopping blocks. The third positioning blocks consist of L-shaped positioning plates and flat plates which are connected fixedly, wherein the positioning plates are provided with adjusting bolts, and the flat plates are provided with flat plates. The large aluminum piece milling and positioning clamp further comprises a positioning part, wherein the positioning part is provided with a locking bolt. The large aluminum piece milling and positioning clamp is simple in structure, flexible and convenient to use and high in clamping efficiency, and the accuracy is easy to ensure.