Pin Grinding Patents

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US3909984A - Punch pin flat grinding machine - Google …

Precise and rapid grinding of punch pins made of extremely hard material is obtained by a process and apparatus wherein a cylindrical punch pin is securely held by a work holder means and moved linearly between grinding means to simultaneously form a plurality of ''''flats'''' in the plane of a chord of the pin cross section and to cut the cutting end of the pin.

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method - How to define a custom term in a patent claim ...

This means that you must include any definition necessary to understand the claimed subject-matter, be it the definition of a term, the definition of a parameter, and/or the definition of a method for measuring a parameter. You can find some more information in the Guidelines for Examination. The definition of the term within the claim can be ...

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Company Overview - Guangzhou Nye Trading Co., Ltd.

Guangzhou NYE trading Co;Ltd ( NYE Accesorios co.,ltd ) is one-stop fashion online store offer Shoe Ornaments, Shoe buckles, Embroidery patch, rhinestone sheet etc decoration for shoe clothes bags . We focus on latest US & Europe fashion shoe accessories producing and selling. We have the good reputation, excellent service, high cost-effective ...

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US Patent for Method for grinding workpieces, in ...

The invention relates to a method for centering grinding of workpieces, for example optical lenses by a grinding tool using an actuator for generating an advancing movement between the grinding tool and the workpiece, wherein the actuator and a current regulator for an actuator current which determines an advancing force of the actuator are integrated in a position control loop using a ...

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US4748774A - Pin grinding fixture - Google Patents

The pin grinding fixture is particularly valuable for end grinding a plurality of identical rods of ejector pins. The fixture is quickly adjusted to the first pin in a series by first adjusting the position of the stop member 14 along the stationary shaft 16 so that the second end …

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The Pulp and Paper Making Processes

fibers [i.e., grinding, refining, or digestion (cook-ing)] to dissolve the lignin and extractives; 3) removal of coloring agents (primarily residual lig-nin) by bleaching; and 4) paper formation and manufacture. A typical layout of a mill using the kraft chemical pulping …

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Crankpin grinding machine. - LITTON INDUSTRIAL …

CLAIMS 1. A cylindrical grinding machine for grinding a pair of axially and angularly offset crankpins P1 to P6. on a crankshaft (10) having a plurality of main bearings (B1 to B4), comprising a grinding wheel assembly including a grinding wheel (18) for effective stock removal from a crankpin having a selected axial location and rotatively driven about a predetermined axis, means for ...

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Grinding wheels for the machine working of marble and ...

A shaped diamond wheel, at certain height, determined by both the type of grinding wheel which is being used and the working stage, is provided with a rotating feeling pin, consisting of a metal element a few millimeters high which projects for few hundreths of a millimeter with regard to …

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US2457359A - Portable pin grinding machine - Google …

US2457359A US610227A US61022745A US2457359A US 2457359 A US2457359 A US 2457359A US 610227 A US610227 A US 610227A US 61022745 A US61022745 A US 61022745A US 2457359 A US2457359 A US 2457359A Authority US United States Prior art keywords frame pin grinding grinding wheel motor Prior art date Legal status (The legal status is an assumption and is not a …

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pin grinding patents - ausdauertauglich.de

US4748774A - Pin grinding fixture - Google Patents. A clamping fixture specifically designed for securing rods, such as ejector pins used in injection molding processes, that are to be accurately ground to a specific length.get price. United States Patent: 4,890,419 - Novatech Inc.

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Trends in Grinding of Agroindustrial Products-A Literature ...

Title:Trends in Grinding of Agroindustrial Products-A Literature Review VOLUME: 12 ISSUE: 1 Author(s):Jhon Wilder Zartha Sossa*, Pedro José Pinto Pérez, Juan Carlos Palacio Piedrahita and Andres Felipe Rios Mesa Affiliation:Engineering School, Faculty of Agroindustrial Engineering, Universidad Pontificia Bolivariana, Medellin, Engineering School, Faculty of Agroindustrial Engineering ...

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US Patent for Self-centering arrangement for grinding the ...

An arrangement for grinding the hardmetal pins of drill bits, e.g. the tungsten carbide buttons (31) of button bits (1), comprises means (parallel arms pairs 9 and 10) for adjusting the position of a grinding pin (15) in relation to the drill bit (1) and also journalling means (4) operative to cause the grinding machine (3) to move relatively slowly in a circuit path around the button on the ...

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Belt grinder for crankshaft pins - General Motors …

TECHNICAL FIELD. This invention relates to crankshaft pin grinders and particularly to a belt grinder for crankshaft pins. BACKGROUND. It is known in the art relating to the manufacture of crankshafts to use a grinding wheel to finish grind the crank pins which are eccentrically mounted with respect to the crankshaft axis of rotation.

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US1393046A - Wrist-pin grinder - Google Patents

US1393046A US349012A US34901220A US1393046A US 1393046 A US1393046 A US 1393046A US 349012 A US349012 A US 349012A US 34901220 A US34901220 A US 34901220A US 1393046 A US1393046 A US 1393046A Authority US United States Prior art keywords cylindrical grinding wheel support wrist pin Prior art date Legal status (The legal status is an assumption and is not …

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Search for patents | USPTO

Patents may be searched in the USPTO Patent Full-Text and Image Database (PatFT). The USPTO houses full text for patents issued from 1976 to the present and PDF images for all patents from 1790 to the present. Searching Full Text Patents (Since 1976) Customize a search on all or a selected group of elements (fields) of a patent. Quick Search

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taper grinding - English definition, grammar ...

patents-wipo. Taper bore grinding machine. patents-wipo. ... The first feeler pin, which runs in front of the grinding disc, is withdrawn from the groove before the latter tapers off or, if the groove profile remains constant, this feeler pin runs out into the open.

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Cut-off and grind pin-machining fixture - TOLLEY; …

Pin 80 is held horizontally for an initial cut-off operation, and pin 82 is held vertically for a final precision grinding operation. During actual operation, only one of the workpiece pins 80 and 82 is held at a time, but two are shown in FIG. 1 for purposes of illustration.

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Crankpin grinding method - UNOVA UK Limited

A method is described for grinding a crankpin of a crankshaft using computer controlled wheelfeed and headstock drives (44,30,24).During a final grinding step leading to finish size the cutting force is maintained on the wheelhead (38) to keep the wheel (34) and pin under a moderate constant load and the rotational speed of the headstock drive (24) is reduced.

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Grinding machine for crankshaft pins - Google Patents

Grinding machine for pins of heavy crankshafts on which the crankshaft is eccentrically mounted in a rotatable clamping arrangement on both sides, where the crankshaft pin to be ground is located in the rotational center of the clamping arrangement and on which the pin can be ground with a grinding head of a cylindrical grinder, with at least one relief arrangement for the crankshaft to supply ...

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Company Overview - Jiangyin Ida Equipment Co., Ltd.

Company Album 3. Basic Information. IDA machinery is a professional engaged in fluid & powder equipment Research and development, design, manufacturing, sales and service as one of the integrated high-tech enterprises. Our company's main products are dispersing equipment, mixing equipment, grinding equipment, emulsifying equipment and complete ...

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JP2006159314A - Crank pin grinding method and grinding ...

Provided is a crankpin grinding method capable of accurately dealing with various demands for improvement which cannot be met by a conventional crankpin grinding method by CX control. An outer peripheral surface of a crank pin having a crank journal having a crank journal and a crank pin P that is eccentric with respect to the crank journal is defined with an axis (journal center JO) of the ...

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iran pin grinding patents - rkl-lederwaren.de

iran pin grinding patents. Abstract Grinding machine for pins of heavy crankshafts on which the crankshaft is eccentrically mounted in a rotatable clamping arrangement on both sides where the crankshaft pin to be ground is located in the rotational center of the clamping arrangement and on which the pin can be ground with a grinding head of a cylindrical grinder with at least one relief ...

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US Patent for Pin grinding fixture Patent (Patent ...

Justia Patents US Patent for Pin grinding fixture Patent (Patent # 4,748,774) Pin grinding fixture . Jan 9, 1987. A clamping fixture specifically designed for securing rods, such as ejector pins used in injection molding processes, that are to be accurately ground to a specific length. The fixture includes an adjustable stop member for indexing ...

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US Patent for Grinding apparatus for a pin for use in ...

A disc-like grinding wheel 5 is formed with a circumferential groove 5a, the opposite walls of which define grinding surfaces 5b. A rotated carrier 3 brings a load pin 55 into rotary movement relative to the grinding wheel 5 rotated about an axis 5z, so as to pass the load pin 55 through space between the grinding surfaces 5b, whereby opposite end faces 55a of the load pin 55 are ground ...

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WINTER Diamond and cBN Tools for the Tools Industry

Grinding wheels for top grinding .....68 Grinding wheels for flank grinding..... 74 Grinding pins for hollow ground ... day, the group invests € 390 million per year in research and development and files around 300 patents per year, to support its reputation for innovation and discovery.

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Self-centering arrangement for grinding the hardmetal …

An arrangement for grinding the hardmetal pins of drill bits, e.g. the tungsten carbide buttons (31) of button bits (1), comprises means (parallel arms pairs 9 and 10) for adjusting the position of a grinding pin (15) in relation to the drill bit (1) and also journalling means (4) operative to cause the grinding machine (3) to move relatively slowly in a circuit path around the button on the ...

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Pin vise - HALONIE; DEAN

The compression spring 55 pulls the cantilever 56 towards the pin 12 so as to retain said pin 12 for grinding. The user grinds the pin 12 until the proper length has been achieved. Thereafter, the user then pivots the cantilever 56 to release the pin 12 from the present invention. The user removes the pin 12 and repeats the above procedure for ...

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U.S. Core Pins Inc. | Precision Grinding | Custom Mold ...

U.S. Core Pins Inc. - Precision Grinding - Industry Leader. With over 50 years of experience, U.S. Core Pins Inc. is the recognized leader in the precision grinding and custom mold components manufacturing industry using the most innovative technology.

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US6767273B1 - Crankpin grinding method - Google Patents

A method is described for grinding a crankpin of a crankshaft using computer controlled wheelfeed and headstock drives ( 44,30,24 ). During a final grinding step leading to finish size the cutting force is maintained on the wheelhead ( 38 ) to keep the wheel ( 34 ) and pin under a moderate constant load and the rotational speed of the headstock drive ( 24 ) is reduced.

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US Patent Application for Grinding apparatus for a pin for ...

A disc-like grinding wheel 5 is formed with a circumferential groove 5a, the opposite walls of which define grinding surfaces 5b. A rotated carrier 3 brings a load pin 55 into rotary movement relative to the grinding wheel 5 rotated about an axis 5z, so as to pass the load pin 55 through space between the grinding surfaces 5b, whereby opposite end faces 55a of the load pin 55 are ground ...

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Pin grinding fixture - GIANGRASSO; JOSEPH A.

Pin grinding fixture - GIANGRASSO; JOSEPH A. Title: Pin grinding fixture. United States Patent 4748774. Abstract: A clamping fixture specifically designed for securing rods, such as ejector pins used in injection molding processes, that are to be accurately ground to a specific length. The fixture includes an adjustable stop member for indexing ...

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US Patent for Cut-off and grind pin-machining fixture ...

A fixture for retaining mold pin workpieces for separate cut-off and precision grinding operations, facilitating the efficient machining of quantities of mold pins to close tolerances, when employed in combination with a machine such as a manual surface grinder, or other machining tool. The fixture includes a base pate, with a vertically upstanding cylindrical post secured to the base plate.

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US20060121830A1 - Grinding method of crank pin and ...

A grinding method of a crank pin that grinds an outer circumferential surface of the crank pin of a crankshaft having a crank journal and the crank pin eccentric to the crank journal by rotating a crankshaft around a central axis (a center of the journal) of the crank journal and moving a rotating grinding wheel in a diametric direction of the crankshaft according to rotation phase angle of ...

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US Patent Application for Grinding pin for grinding ...

A grinding pin (53) for grinding notches in the edges of disc workpieces, such as semi-conductor wafers, comprises a metal spindle (132) for mounting in a grinding machine, and an adjoining cylindrical region having axially spaced sections of fine grit (160) and rough grit (162), the latter being axially nearer the spindle (132). In use on a grinding machine having a rotatable forming wheel ...

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