44results about How to "Improve finishing accuracy" patented technology

The present invention provides a process for producing a monolithic product wherein a piece of stock is formed, then machined. The invention encompasses a monolithic product made by the process.

A shaft secured to a hub is inserted and rotatably supported in a sleeve secured to a base. A dynamic pressure groove is formed in the inner peripheral surface of the sleeve, and lubricant is sealed between the shaft and the sleeve. The rotation of the shaft causes dynamic pressure to generate in the lubricant due to the dynamic pressure groove, supporting the shaft floatingly. The crystallized-glass sleeve allows heat generated in a coil to be hardly transferred to the shaft, thereby reducing the variations in the clearance between the shaft and the sleeve due to temperature changes to a minimum in cooperation with the crystallized-glass sleeve with a low thermal expansion coefficient. Finishing accuracy of the bearing surface can be improved by chemical polishing. Consequently, the rotation accuracy can be improved and the leakage of lubricant due to the variations in the clearance can be prevented.

The invention discloses a continuous hinge circle-rolling device which comprises an upper die and a lower die, wherein an end circle-rolling punch, a root circle-rolling punch, a 45-degree circle-rolling punch and a circle-rolling forming punch are sequentially arranged at the bottom of the upper die at intervals; an end circle-rolling block, a root circle-rolling block, a 45-degree circle-rolling block and a circle-rolling forming block, which respectively correspond to the end circle-rolling punch, the root circle-rolling punch, the 45-degree circle-rolling punch and the circle-rolling forming punch, are arranged on the lower die; the end circle-rolling punch, the root circle-rolling punch, the 45-degree circle-rolling punch and the circle-rolling forming punch are fixedly connected with the upper die through bolts respectively; the end circle-rolling block, the root circle-rolling block and the 45-degree circle-rolling block are fixedly connected with the lower die through bolts, and the circle-rolling forming block is movably connected to the lower die. The continuous hinge circle-rolling device can simultaneously carry out end circle-rolling, root circle-rolling, 45-degree circle-rolling and circle-rolling forming for four hinges respectively, can automatically move to the next process, achieves the purpose of automatic, efficient and precise continuous circle-rolling, and is high in precision and high in production efficiency.

The invention discloses an axial floating positioning mandrel clamp. The axial floating positioning mandrel clamp is composed of a round sleeve, a mandrel, a base, an expansion sleeve, a ring sleeve, a gasket and a nut, wherein the ring sleeve arranged outside the large diameter end of the mandrel in a sleeving mode is locked through a bolt, the small diameter end of the mandrel is provided with an outer thread matched with the nut, and a section of the expansion sleeve matched with a conical shaft is arranged at the middle section of the mandrel and is of an axial spiral expansion structure composed of the ring sleeve, the gasket and the nut. A matched linkage structure composed of an outer protruding tooth and a groove is arranged on the combination surface of the ring sleeve and the base. Counter bores are evenly distributed in the end surface, facing a tooth part of a bevel gear of a workpiece, of the base, piles supported by springs axially are arranged in the counter bores, and the outwards extending piles are sealed by covering plates to form elastic telescopic structures. By means of the axial floating positioning mandrel clamp, the degree of freedom of rotation of the workpiece in the radial direction and axial direction and around the axis of the mandrel is limited, the workpiece is positioned accurately and reliability, and the fine machining accuracy is improved. In addition, the inner expansion structure is not provided with external objects, and efficient grinding machining on an outer ledge of the workpiece is facilitated.

Disclosed herein is a light amount adjustment apparatus, including: a light amount adjustment member; a rotatable magnet formed in a disk shape; a driving arm configured to be pivoted by rotation of the magnet to operate the light amount adjustment member; a core having a pair of confronting portions positioned so as to sandwich the magnet from an outer circumference side and a connecting portion configured to connect end portions of the confronting portions to each other; a coil through which one of the portions of the core extends; and a base member having the core attached to the base member and supporting the magnet for rotation on the base member. The base member has a plurality of attaching projections provided at least at two places of the base member for attaching the core to the base member. The attaching projections have a small projection for fitting with the core.

A polishing apparatus includes a polishing jig. The polishing jig includes an elastic balloon member, a fixture, and a fluid supply portion. The fixture airtightly closes the rear opening portion of the balloon member. The fluid supply portion supplies a fluid into a space formed by the fixture and balloon member. The balloon member has a cup shape constructed by a dome portion and a cylinder portion extending backward from the outer periphery of the dome portion. The fixture fixes the opening portion of the cylinder portion of the balloon member.

The method includes a step of aligning and laminating enlarged iron core pieces including iron core pieces and dummy piece parts and forming a composite laminated iron core integrally including a dummy laminated part with the dummy piece parts laminated and a laminated iron core, a step of placing and positioning the composite laminated iron core on a jig and removing the dummy laminated part, and a step of mutually bonding the laminated iron core body with the dummy laminated part removed to form the laminated iron core.

A polishing apparatus comprises a first polishing table having a first polishing surface, a substrate carrier for holding a substrate and positioning the substrate so as to bring a surface of the substrate into contact with the first polishing surface, a pressing mechanism for pressing, against the first polishing surface, the surface of the substrate which has been brought into contact with the first polishing surface by the substrate carrier, a retainer ring mounted on the substrate carrier so as to surround the substrate which has been pressed against the first polishing surface by the pressing mechanism, and a retainer-ring-position-adjustment mechanism for adjustably positioning the retainer ring relative to the substrate, which has been pressed against the first polishing surface, in directions toward and away from the first polishing surface.

To improve precision in collation processes or create a database of collation images by registering at least a part of captured images not matching a previously registered face image, as a collation face image, a face collation apparatus includes an image acquirer that acquires captured face images captured by a capturing device, a registered-person image storage that stores registered-person images that are previously registered face images, an image collator that collates the captured images with the registered-person images, an unregistered-person image storage that stores the captured images that do not match the registered-person images, an image output that outputs at least one of the unregistered-person images stored in the unregistered-person image storage to a display device, and an image register, selected to be registered by a user, that registers the unregistered-person image, among the unregistered-person images output to the display device, as a registered-person image in the registered-person image storage.

The invention discloses a casting post-finishing assembly line and a finishing method adopting the same. The casting post-finishing assembly line comprises a feeding mechanism, a finishing mechanism,a conveying mechanism used for distributing a casting to the finishing mechanism, and a control mechanism. During finishing, the casting is fed into the conveying mechanism through the feeding mechanism and then distributed to one of a finishing module for thin and long castings, finishing modules for circular-ring-shaped castings and a finishing module for other castings of the finishing mechanism through the conveying mechanism. The casting post-finishing assembly line can finish the different types of castings, and thus the universality of the equipment is improved; and the whole system iscontrolled through the control mechanism, and accordingly on-line automatic finishing of the casting is achieved.

The invention discloses a casting after-finishing assembly line and a finishing method thereof. The casting after-finishing assembly line comprises a feeding mechanism, a finishing mechanism, a conveying mechanism for distributing castings to the finishing mechanism, and a control mechanism. The finishing mechanism comprises a thin casting finishing module, a circular casting finishing module anda finishing module for other castings. During finishing, the castings are conveyed into the conveying mechanism through the feeding mechanism, the castings are distributed to one of the thin casting finishing module, the circular casting finishing module and the finishing module for other castings through the conveying mechanism for finishing. According to the casting after-finishing assembly line, the castings of different types can be subjected to finishing, and the universality of the equipment is improved; the whole system is controlled through a control system, and therefore online automatic finishing of the castings is achieved.

The invention discloses a kind of digital control compound processing centre which has three primary axis heads and three blade brackets to provide double drives, it is made up of turning primary axis head, milling axis head, fine machining primary head, turning blade bracket, milling blade bracket components, straight lade bracket component, saddle, transverse sliding boards, small door bracket component, a bed, the side door bracket component, tail bracket component and blade bank. The fine machining primary head can be changed, it can assemble high speed milling head, grinding head; the primary axis has servo axis function, the other two primary axes is servo axis. The bathe has at least nine servo axes, it can have twenty servo axes at most, it can realize five-axes linked control; the piece can realize turning, milling, boring, drilling and screwing, and high speed milling and so on. The raw and fine process can be separated, in order to upgrades the precise maintaining of bathe.