46results about "Burnishing machines" patented technology

The present invention improves the sealability of a fluid control valve, and includes a valve seat having a flat valve seat surface and a valve plug having a flat sitting surface sitting on the valve seat surface. A first surface that is one of the valve seat surface and the sitting surface has a surface hardness higher than a surface hardness of a second surface that is the other one of the valve seat surface and the sitting surface.

This invention relates to machining tools and surface finishing methods using the DL (deep-drilling) method, the tools comprising ceramic-metal composites with uniformly polished surfaces. In some embodiments, the machining tool exhibits compressive stress less than -500 MPa after polishing, or equal to or greater than 40% of the compressive stress generated during the grinding process. In some embodiments of the invention, the machining tool has a uniformly polished surface along the cutting edge, i.e., perfect flatness between the metal and ceramic components of the tool, such that the roughness of the cutting edge is in the sub-micron range. In some cases, the machining tool has a roughness variation along the cutting edge and adjacent surfaces along the tool's uniform or regular cutting edge.

Provided is a polishing composition which, in a composition containing a cellulose derivative, can maintain low haze and has excellent defect reduction properties. The present invention can provide a polishing composition containing a cellulose derivative and a basic compound. The weight-average molecular weight (Mw) of the cellulose derivative is less than 80,000.

The present disclosure discloses a system for peening an inner surface of a hollow spiral extension member (E), the system including a configuration that supplies an ultrasonic transmission medium (M) for ultrasonic cavitation to a peening target region of a target. The system for peening an inner surface includes a medium tank (110) configured to accommodate an ultrasonic transmission medium (M), a connection pipe (120) respectively connected to a hollow spiral extension member (E) and the medium tank (110), the connection pipe (120) being configured to form a movement flow path for the ultrasonic transmission medium (M) from the medium tank (110) into the hollow spiral extension member (E), a pressure adjuster (130) connected to the medium tank (110) and configured to control a flow of the ultrasonic transmission medium (M) by adjusting pressure in the medium tank (110), and an ultrasonic generator (140) installed in the connection pipe (120) and configured to generate ultrasonic waves toward the inside of the hollow spiral extension member (E) in the connection pipe (120) so that ultrasonic cavitation peening is performed on an inner surface of the hollow spiral extension member (E) in a state in which the inside of the hollow spiral extension member (E) is filled with the ultrasonic transmission medium (M).

Provided is a surface treatment member 1 used by being mounted on a rotary member in a surface treatment system including the rotary member. The surface treatment member 1 includes: a base 10; a striking member 40 having an annular body portion and a protruding portion that protrudes from the body portion; and a shaft member 50 disposed in a region on an inner side of the body portion. When the surface treatment member 1 is viewed along an imaginary axis A about which the base 10 is to be rotated, a portion of the striking member 40 is exposed outside an outer periphery of the base 10 by a centrifugal force when the surface treatment member 1 is rotated, and an entirety of the striking member 40 is retractable toward inside an imaginary circle that passes over an outermost periphery of the base 10 about the imaginary axis A after the striking member 40 impinges on a surface treatment object. According to the surface treatment member 1 of the present invention, by using the surface treatment member 1 in the surface treatment system that includes the rotary member, it is possible to increase the adhesiveness of a paint when the surface preparation is performed, and the surface preparation can be performed easily.

A multi-axis deep rolling tool for deep rolling a workpiece including a roller tool comprising an adaptor plate; a multi-axis measurement unit attached to the adaptor plate; an arm mount attached to the multi-axis measurement unit; an arm attached to the arm mount, the arm comprising an adapter end proximate the arm mount, the arm comprising a roller end opposite the adapter end; a cartridge assembly attached to the arm proximate the roller end, the cartridge assembly including a rolling element insertable within the cartridge assembly, the rolling element configured to contact the workpiece.

The embodiment of the invention discloses a surface strengthening method and equipment for an inner hole and a mating part of a hydraulic cylinder body and a medium, belongs to the technical field of ultrasonic rolling, and solves the problem that a single surface strengthening technology in the prior art cannot meet harsh working condition requirements. Comprising the following steps: nitriding an inner hole of the hydraulic cylinder body and a mating part, and carrying out data monitoring on nitriding process parameters and nitriding layer quality parameters; the monitored parameters are analyzed, and the analysis result is cooperatively adjusted based on the structural characteristics of the inner hole of the hydraulic cylinder body and the matching part, so that reference ultrasonic rolling process parameters are obtained; based on the reference ultrasonic rolling process parameters, ultrasonic surface rolling equipment is controlled to carry out surface strengthening treatment on the inner hole of the hydraulic cylinder body and the mating part; and feedback adjustment is conducted on the reference ultrasonic rolling process parameters based on the surface strengthening treatment data, so that ultrasonic surface rolling equipment is controlled to construct strengthening layers on the surfaces of the inner hole of the hydraulic cylinder body and the mating part based on the parameters subjected to feedback adjustment.

Improving the stability of rolling machine parts performance [Solution] The burnishing processing device 400 processes a workpiece having a track forming surface 401 on which the track of a spherical rolling element 130 is formed, and is equipped with a roller 410 having a rotation axis 402 in a direction perpendicular to the extension direction of the track and pressed against the track forming surface 401 to plastically deform the workpiece, and the roller 410, in a cross section including the rotation axis 402, has a convex arc-shaped portion 411 which is part of an imaginary circle which is the same as or nearly the same as the cross-sectional circle passing through the center of the spherical rolling element 130, and escape portions 412 extending from both ends of the convex arc-shaped portion 411 so as to move away from the convex arc-shaped portion 411 along the imaginary circle and move away from the imaginary circle as they move away from the convex arc-shaped portion 411.

A linear reluctance actor is provided comprising a stator supporting at least one coil and a rotor. The coil is designed as a bifilar winding and the linear actor includes at least one resetting element allowing the rotor to be brought into a predefined initial position after a stroke movement.

The present invention provides a magnetic recording medium production apparatus, a magnetic recording medium production method, and a burnishing apparatus that enable early detection or prediction of defective products during the production of magnetic recording media, thereby improving the productivity of magnetic recording media. [Solution] A production apparatus for a magnetic recording medium 1, comprising: a film deposition apparatus that deposits at least a magnetic recording layer 112 and a protective layer 113 on a substrate 111 in that order; a lubricant application apparatus that applies a lubricant onto the protective layer 113 deposited by the film deposition apparatus to form a lubricating layer 12; and a burnishing apparatus that burns the surface of the lubricating layer 12 applied by the lubricating apparatus with an abrasive, further comprising: a collection unit that collects load amount data during burnishing; a storage unit that stores the collected load amount data; a calculation unit that performs calculations using the stored load amount data; and a setting unit that sets the manufacturing conditions of the film deposition apparatus or the lubricating apparatus based on the calculation results from the calculation unit.

One embodiment of a work-in-progress crankshaft according to the present disclosure comprises: a long shaft part, a coupling shaft part, and a short shaft part that extend in an axial direction about a central axis; a first eccentric shaft part that is located between the long shaft part and the coupling shaft part in the axial direction, is eccentric to the central axis, and extends in the axial direction; and a second eccentric shaft part that is located between the coupling shaft part and the short shaft part in the axial direction, is eccentric to the central axis, and extends in the axial direction. The long shaft part is of larger dimension in the axial direction than the short shaft part. The first eccentric shaft part and the second eccentric shaft part are eccentric on mutually opposite sides to the central axis in between. An outer circumferential surface of the first eccentric shaft part is a cut surface formed by cutting. Residual stress remaining on an outer circumferential surface of the second eccentric shaft part is greater than residual stress remaining on the outer circumferential surface of the first eccentric shaft part.

The present invention relates to a manufacturing method for a secondary battery and a manufacturing apparatus for a secondary battery used therein, and more particularly to a manufacturing method for a secondary battery that manufactures a secondary battery including a plurality of electrode tabs and electrode leads, and a manufacturing apparatus for a secondary battery used therein. The present invention provides a method for manufacturing a secondary battery, including: a tab-lead laminate welding step of welding a tab-lead laminate in which a plurality of electrode tabs and electrode leads are stacked, to connect the electrode tabs and the electrode leads; and a tab-lead laminate processing step of continuously applying pressure to a welded portion of the tab-lead laminate along a length direction to process the welded portion.

To provide a processing method of a machining object capable of imparting compressive residual stress to an inner wall surface of a hole regardless of a shape of the hole.SOLUTION: A processing method of a machining object according to one aspect incudes steps of: preparing a metal machining object having a hole that opens to a surface thereof; filling the hole with processing media; and applying external force to the processing media to impart compressive residual stress to an inner surface of the hole.SELECTED DRAWING: Figure 5

Provided is a reduction gear that is thinner than a conventional one without impairing performance and characteristics. The present invention is a reduction gear (1) comprising: an eccentric shaft (4) in which eccentric portions (41, 42) perform an eccentric motion by rotation of a shaft; planetary gears (51, 52) which perform an eccentric motion by the eccentric motion of the eccentric portions (41, 42); a case (9) which functions as internal teeth for the planetary gears (51, 52); and a carrier (7) which is connected to the planetary gears (51, 52) and which outputs rotation of the planetary gears (51, 52), wherein each component of the planetary gears (51, 52) and the carrier (7) is produced to have a thickness less than that of a conventional component by a proportion corresponding to the increase in torsional rigidity of each component due to shot peening when a material is processed, and thereafter shot peening is performed on a surface of the component so that the torsional rigidity is increased.

The invention discloses an inner wall impact strengthening system of a hollow spiral extension component and an impact strengthening method of the hollow spiral extension component using the same. The inner wall impact strengthening system includes: a medium tank accommodating an ultrasonic transmission medium; a connection duct connected to each of the hollow spiral extension member and the medium tank, and forming a moving flow path of the ultrasonic transmission medium from the medium tank to the interior of the hollow spiral extension member; a pressure regulator connected to the medium tank and configured to control a flow of the ultrasonic transmission medium by regulating a pressure inside the medium tank; and an ultrasonic generator mounted to the connection pipe and configured to generate ultrasonic waves from an interior of the connection pipe toward an interior of the hollow spiral extension member such that ultrasonic cavitation impact strengthening is performed on an inner wall of the hollow spiral extension member in a state in which the interior of the hollow spiral extension member is filled with an ultrasonic transmission medium.

An apparatus (1) for machining, particularly deep rolling, a shaft (4) and other components, comprising two revolving centers (2A, 2B) for supporting the shaft (4) to be machined on both sides, at least one drive (6A, 6B) for rotating the shaft (4) to be machined, and at least one pair of rolling tools (8A, 8A', 8B, 8B', 8C, 8C') for machining, particularly deep rolling, the shaft (4) to be machined, the two revolving centers (2A, 2B) having central axes An apparatus (1) is shown and described in which at least one revolving center (2B) is disposed on a central axis (3), at least one pair of rolling tools (8A, 8A', 8B, 8B', 8C, 8C') are disposed on a movable axial slide (10A, 10B, 10C) displaceable along the central axis (3), and the rolling tools (8A, 8A', 8B, 8B', 8C, 8C') are radially displaceable relative to the central axis (3). At least one exchange device (11A, 11A', 11B, 11B') is provided for exchanging the rolling tools (8A, 8A', 8B, 8B') to achieve efficient machining of components having different geometries. The use of such an apparatus for deep rolling axles (4), particularly wheelset axles for railway vehicles, is also shown and described.

The invention relates to a method for coating and deep rolling a movable disc (B), the invention relates to a method for coating a brake disc (B), comprising the following steps: b) providing a device (V5) for coating the brake disc (B), d) providing a device (V7) for deep rolling the coated brake disc (B), e) providing a device (1) for transporting the brake disc (B), i) coating a first side of the brake disc (B), j) coating a second side of the brake disc (B), and k) deep rolling both sides of the coated brake disc (B), the brake disc (B) is transported by a transport device (1) at least between a device (V5) for coating the brake disc (B) and a device (V7) for deep rolling of the coated brake disc (B). In order to solve the problem, steps i) and j) are carried out in sequence on the same device (V5) for coating the brake disc (B).

The present disclosure discloses a system for peening an inner surface of a hollow spiral extension member (E), the system including a configuration that supplies an ultrasonic transmission medium (M) for ultrasonic cavitation to a peening target region of a target. The system for peening an inner surface includes a medium tank (110) configured to accommodate an ultrasonic transmission medium (M), a connection pipe (120) respectively connected to a hollow spiral extension member (E) and the medium tank (110), the connection pipe (120) being configured to form a movement flow path for the ultrasonic transmission medium (M) from the medium tank (110) into the hollow spiral extension member (E), a pressure adjuster (130) connected to the medium tank (110) and configured to control a flow of the ultrasonic transmission medium (M) by adjusting pressure in the medium tank (110), and an ultrasonic generator (140) installed in the connection pipe (120) and configured to generate ultrasonic waves toward the inside of the hollow spiral extension member (E) in the connection pipe (120) so that ultrasonic cavitation peening is performed on an inner surface of the hollow spiral extension member (E) in a state in which the inside of the hollow spiral extension member (E) is filled with the ultrasonic transmission medium (M).

A finishing tool, includes: a housing having a cylindrical holder chamber that opens toward a distal end and located along a central axis; a slide sleeve disposed coaxially with the central axis in the holder chamber and rotates only in a first direction; a drive sleeve disposed coaxially with the central axis in the holder chamber and rotates only in the first direction; a tool chip having a spherical surface at a distal end; and a chip holder penetrating the slide sleeve and the drive sleeve, reciprocable between a forward end and a rearward end, capable of mounting the tool chip at a distal end, axially slidable relative to the slide sleeve, and rotates in the first direction as the chip holder moves forward relative to the drive sleeve.

The application discloses a high-precision ball screw nut grinding device and belongs to the technical field of grinding processing. The device comprises a machine base and a multi-point positioning and clamping module. In the application, a grinding assembly and a thread cutting assembly are arranged in pairs. Through the arrangement, two sets of grinding structures are used to grind the nut. Compared with the traditional grinding structure, the two sets of grinding structures greatly reduce the contact area with the nut surface. The multi-point contact grinding can greatly reduce the heat generated by the nut grinding without affecting the grinding. The real-time cooling by the cooling liquid is not needed, the cleanliness in the cabin is greatly improved, the device can realize the synchronous cutting of the internal thread of the nut during the external grinding of the nut, the subsequent additional processing procedure is not needed, the nut processing efficiency is improved, and the grinding thickness can be accurately controlled according to the requirement during the processing, so that the actual application effect of the device is improved.

To provide a method for manufacturing a bearing component capable of efficiently eliminating gaps existing around a non-metallic inclusion.SOLUTION: In a method for manufacturing a bearing component, in order to reduce gaps between a non-metallic inclusion and a matrix in a region of a surface of a workpiece on which a load is applied when used as a bearing component, a rolling element is rolled in a contact manner and pressed to plastically deform the workpiece. Then, the workpiece after the plastic deformation is subjected to heat treatment to give it a Rockwell hardness of 58 HRC or more. As the rolling element, a sphere or roller can be used. Also, the rolling element can be pressed against the workpiece with a working surface pressure within a range of 3.5 GPa or more and 5.5 GPa or less.SELECTED DRAWING: Figure 1

Indentation-forming polishing tool (1), comprising: a mandrel (30) which is attached to a processing machine for rotation on a rear side belonging to it; and a cylindrical frame (40) rotatably mounted externally on a tip side of the mandrel (30), the frame holding a roller element (41) and a pressure element (42), the roller element (41) and the pressure element (42) being driven by rotation of the mandrel (30) to form depressions by the pressure element (42) and depressions by the roller element (41) in an inner surface of a workpiece (W) by rotation of the mandrel (30) with the frame (40) arranged within the inner surface of the workpiece (W), wherein the mandrel (30) has a recess adjustment mechanism, the recess adjustment mechanism comprising: a rotating section for the rolling element (41) which causes the rolling element to rotate without moving radially in and out of the frame (40); and a rotary section for rotating the pressure element (42) in and out, which causes the pressure element (42) to rotate while moving radially in and out of the frame (40).

The invention relates to a device (1) for processing, in particular deep rolling, shafts (4) and other components, comprising two live centres (2A, 2B) for receiving a shaft (4) to be processed on both sides, at least one drive (6A, 6B) for rotating the shaft (4) to be processed, at least one pair of rolling tools (8A, 8A', 8B, 8B', 8C, 8C') for processing, in particular deep rolling, the shaft (4) to be processed, wherein the two live centres (2A, 2B) are arranged on a central axis (3), wherein at least one live centre (2B) can be moved along the central axis (3), wherein at least one pair of rolling tools (8A, 8A', 8B, 8B', 8C, 8C') is arranged on a moving axial carriage (10A, 10B, 10C), which can be moved along the central axis (3), and wherein the rolling tools (8A, 8A', 8B, 8B', 8C, 8C') can be moved in a radial direction relative to the central axis (3). In order to achieve an efficient processing of components with a different geometry, at least one change-over device (11A, 11A', 11B, 11B') is provided for exchanging the rolling tools (8A, 8A', 8B, 8B'). The invention also relates to the use of a device of this type for deep rolling shafts (4), in particular wheel set axles of wheels sets for rail vehicles.

This enables the creation of a thinner gearbox than conventional gearboxes without compromising performance or characteristics. [Solution] In a reduction gear 1 comprising an eccentric shaft 4 in which eccentric parts 41 and 42 perform eccentric motion due to the rotation of the shaft, planetary gears 51 and 52 rotatably supported by the eccentric parts 41 and 42 and performing eccentric motion in synchronization with the eccentric motion of the eccentric shaft 4, a case 9 to which a plurality of outer peripheral pins 6 that function as internal teeth for the planetary gears 51 and 52 are rotatably attached, and a carrier 7 which is rotatably supported by the eccentric shaft 4 and consists of covers 71 and 72 that clamp the planetary gears 51 and 52 and outputs the rotation of the planetary gears 51 and 52, the planetary gears 51 and 52 and the covers 71 and 72 are manufactured by reducing their size by the amount by which the torsional rigidity of each part is increased by shot peening when processing the material, and shot peening is applied to the surface of the parts.

A shot-peening device capable of improving the fatigue strength of a workpiece by applying compressive residual stress to the inside of the workpiece has a hollow housing and a vibration device for vibrating the housing. The housing stores a workpiece and shot therein. The vibration device vibrates the housing with the workpiece and the shot stored therein. Accordingly, the fatigue strength of the workpiece is improved by applying compressive residual stress to the inside of the workpiece.

Provided is a shot-peening device capable of improving the fatigue strength of a workpiece by applying compressive residual stress to the inside of the workpiece. The shot-peening device comprises: a hollow housing 2; and a vibration means 3 for vibrating the housing 2. The housing 2 stores a workpiece W and shot SH therein. Due to this configuration, the vibration means 3 vibrates the housing 2 with the workpiece W and the shot SH stored therein. Accordingly, the fatigue strength of the workpiece W is improved by applying compressive residual stress to the inside of the workpiece W.