75results 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.

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.

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.

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.

The invention relates to a milling machine fixture capable of adjusting an angle. The structure is simple, the operation is convenient, the problem that location of a plane with an angle in milling processing is complex in the existing milling processing is solved, the clamping time of a part is greatly shortened, and the processing efficiency is facilitated to be improved. The milling machine fixture capable of adjusting the angle mainly comprises a base, a side wall, a shaft sleeve, a shaft, a working plate, a guide rail, a nut, a screw, a bevel wheel and a rocker arm. The angle of the working plate is adjusted through the change of the height of the nut, so that the milling of planes of different angles and the processing of chutes of plate parts are met.

A fixation device for positioning and fixating a portable drilling machine onto a guide bushing on a template, wherein a single locating pin is associated with the guide bushing and extends axially through a separate hole in the drill template adjacent to the guide bushing. A clamping mechanism of the device is configured to concentrically circumscribe a portion of the guide bushing and has a recess for simultaneous engagement with the single locating pin in order to positively lock the housing and a drilling machine attached thereto circumferentially in a predetermined position.

A horizontal numerical-control double-end-milling rear axle housing plane clamp comprises a clamp base. Positioning clamping units are arranged symmetrically at two ends of the clamp base, an adjusting screw is arranged at the outer end of each of the positioning clamping units of the two ends and is used for adjusting positions of the positioning clamping units on the clamp base, a rear axle housing steel plate support upper plane angle positioning unit and a rear axle housing steel plate support lower plane angle positioning unit are arranged on the lower portion of a rear axle housing steel plate support, and work-piece end positioning units are arranged at the ends of the rear axle housing steel plate support on the positioning clamping units. According to the clamp, the whole clamp is mounted on a numerical-control hydraulic sliding platform, multiple times of feeding machining is performed on large-margin planes, the cutter service life is prolonged, and the machining accuracy is guaranteed.

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).

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.

An ultrasonic positioning device for a five-axis machine includes an ultrasonic device and a positioning plate. The ultrasonic device is adapted to fix a material and generates ultrasonic vibrations to the material. The positioning plate is adapted to fix the ultrasonic device and pivotally connected the five-axis machine for the material to be controlled by the five-axis movement on the five-axis machine. By cooperating with the ultrasonic vibrations, a processing portion of the five-axis machine can process the material.

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.

Provided is a chamfering device capable of executing the corner portion of a metallic material or a metallic structure member under economical, efficient and satisfactory working environments. The chamfering device for the metallic material comprises a chamfering oscillation terminal extending at the leading end portion of the oscillating direction of an oscillating device and in the direction perpendicular to the oscillating direction and including a bottom portion having a section of a radius of curvature (R) normal to that extending direction and a groove opened toward leading end side, andthat oscillating device for vibrating the oscillation terminal in the axial direction thereof in a frequency of 10 Hz to 50 KHz and in a power of 0.1 to 4 KW.

Disclosed is a machine tool including: a base having a pair of first-axial slides facing each other at both sides of a mounting space; a saddle coupled to the first-axial slides of the base to slide in a first axis direction and having a pair of second-axial slides facing each other; a crosspiece coupled to the second-axial slides of the saddle to slide in a second axis direction and having a pair of third-axial slides facing each other; a vertical ram coupled to the third-axial slides of the crosspiece to slide in a direction perpendicular; and a table disposed in the mounting space of the base to be able to rotate relative to the base.

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.

A device for whirling an internal thread (3) comprises a whirling mandrel (4) on which a cutting tool (5) for producing the internal thread (3) is located, and an elongated guide part (7) supporting the whirling mandrel (4), at the end of which a guide section (8) is formed, which is designed as a section with a diameter increased relative to the adjacent area of ​​the guide part (7) for contacting an inner circumferential surface (10) of a workpiece, wherein the whirling mandrel (4) is arranged eccentrically to the guide section (8). The whirling mandrel (4) is arranged opposite the guide part (7), wherein means (11, 12) for aligning the whirling mandrel (4) relative to the guide part (7) are formed on the end faces of the whirling mandrel (4) and the guide section (8).

The invention relates to an ultrasonic system for cutting and machining processing, comprising a tool (4), a sonotrode (3) and a piezoelectric exciter (1). The invention is characterized in that a resonant frequency of more than 100 and preferably of more than 120 and particularly preferably of more than 150 kHz is applied to the tool (4). The invention further relates to a method for designing an ultrasonic system.

In a cutting tool having an indexable cutting insert (20) with exactly four cutting portions (26), the cutting insert is removably securable to an insert holder by a fastener. The cutting insert (20) has two opposing end surfaces (22) with a peripheral side surface (24) extending therebetween, and each cutting portion (26) has a major cutting edge (28) formed by the intersection of a rake surface (30) and a relief surface (32). The peripheral side surface (24) has first and second pairs of opposing side surfaces (34, 36) which include the four relief surfaces (32) and the four rake surfaces (30), respectively. In an end view, four cutting points on the four major cutting edges (28) define the transitions between the first and second pairs of opposing side surfaces (34, 36), and a minimum first length dimension between the second pair of opposing side surfaces (36) is less than six-tenths of a minimum second length dimension between two of the four cutting points.

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 belongs to the technical field of clamping devices, and discloses an annular part clamping device and a clamping method. The annular part clamping device comprises a bearing platform, rolling wheels and a fixing assembly. The annular part is clamped from the peripheral side through the rolling wheels, the clamping force formed by gathering the multiple rolling wheels is more uniform and is mainly used for driving the annular part to rotate and preliminarily position, the fixing assembly only fixes the relative position, and extra external force such as axial pressure of the pressing plate or radial supporting force of the inner hole supporting tool is not applied to the annular part; and deformation of the annular part caused by stress is reduced, so that the influence of elastic recovery deformation on dimensional tolerance after dismounting and clamping is reduced, and the product quality is further ensured.