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A surface grinding machine capable of grinding the end surface of a workpiece (10) without leaving any unground protruding portion at the centre thereof by imparting rotation on its own axis and around a chuck holder or eccentric rotation to either a chuck (14) for holding the workpiece (10) or a cup-shaped grinding wheel (12) by a planetary gear mechanism (25, 26).
As a grinding apparatus for grinding the surface of a semiconductor wafer, a grinding apparatus comprising a supporting base and at least one grinding wheel assembly disposed to face to the supporting base has been proposed and come into commercial acceptance as disclosed in European Laid-Open Patent Publication No. 0 039 209 (European Patent ...
2015-3-27 · Surface grinding is a finishing process that is done to extremely tight tolerances. Metals such as cast iron, steel, stainless steel, aluminum, and brass typically lend themselves to surface grinding, as do some plastics. Holland Engineering can handle surface grinding jobs on pieces up to 15 inches by 32 inches by 15 inches. We can perform ...
1993-12-17 · A grinding tool bit is formed of a disk-shaped base member (1) with a central through opening (6) for attaching the base member to a drive spindle of a machine tool. The base member (1) is covered with individual cutting elements (4) at the radially outer circumferential surface (2) and in the side faces (3) adjacent the outer circumferential surface (2).
What is claimed as new and desired to be protected by Letters Patent is set forth in the appended claims. 1. A surface grinding machine, comprising a rigid transmission housing having a tubular narrowing region; a grinding disc arranged movable on said transmission housing; a rotating drive which oscillatingly drives said grinding disc and includes a motor formed as an electric motor; an ...
The device is characterized by the fact, that the lateral surface of the working body has a curvilinear form with an acute-angled edge and with a guiding surface for the grinding bodies. the invention allows to increase efficiency of grinding.EFFECT: the invention ensures an …
YHDM580C Vertical double disc side surface grinder. It can process and grind thin parts with parallel side surfaces like motorcycle brake disc, ring type, disk type,ect. 1. Adopts Siemens 802D SL CNC system, servo motor control and the display operation. 3.Wheel head feed adopts precise ball screw unit (Patent No:ZL200520050915.X).
1992-8-6 · A suture needle includes at least one ground surface, and a pair of cutting edges formed respectively on opposite side edges of the ground surface. The ground surface has grinding traces which extend perpendicular to an axis of the suture needle, and the pair of cutting edges are in generally the same condition from a microscopic point of view.
1998-6-9 · A grinding tool for forming hemispherical bores in hard materials such as boron carbide. The tool comprises a hemicircular grinding bit, formed of a metal bond diamond matrix, which is mounted transversely on one end of a tubular tool shaft. The bit includes a spherically curved outer edge surface which is the active grinding surface of the tool.
2008-8-7 · The invention relates to a grinding drill for inferior turbinate bone, applied to grind inferior turbinate bone of a patient. The drill comprises a straight handle and a grinding head integrally connected onto the end of the straight handle grinding teeth are provided on the surface of the grinding head the drill is characterized in that the side surface the grinding head is columniform, the ...
DOE Patents Patent: Tool grinding machine. Tool ... is longitudinally displaced with respect to the remainder of the grinding system due to contact of the tool with the grinding surface with this displacement being monitored so that any variation in the grinding of the cutting surface such as caused by crystal orientation or tool thickness may ...
2021-6-23 · Title:Development of Centreless Electric Discharge Grinding Machining Process and Optimization of Process Parameters VOLUME: 14 Author(s):MS Shekhawat, Harlal Singh Mali* and APS Rathore Affiliation:School of Manufacturing Skills, Bhartiya Skill Development University, Jaipur 302042, Department of Mechanical Engineering, Malaviya National Institute of Technology, Jaipur 302017, …
2016-7-8 · In a spherical lens surface processing method, a lens surface is ground to a spherical surface by forming a contact state in which a rotating cup-shaped grinding stone is placed in contact with the lens surface and a sphere center oscillation state in which the cup-shaped grinding stone oscillates along the lens surface centered on a sphere center.
Surface grinders usually have a tapered spindle. The grinding wheel is mounted on the spindle and locked in position by a nut. In order to mount a small grinding tool having a shank, the conventional practice is to mount an attachment having a collet for supporting the grinding tool. The attachment is mounted on the spindle and has a pulley ...
A rotary concrete surface grinding and smoothing device having a segmental diamond chip impregnated, engine-driven, rotating grinding head; a foot-operated unit for raising and lowering the grinding head with relation to the surface to be ground; a slanted front end for better visibility; and, ballast weight and adjustable axle means to incrementally vary the downward pressure of the grinding ...
2021-10-25 · Horizontal Axis Surface Grinding Machine. ... We have obtainedISO9001:2008, ISO14001:2004, GB / t28001-2011, 8 utility model patents and etc.
YFM-318 Ultrafine Grinding Mill -Longyan Yifeng Grinding Mill Co., Ltd Welcome to Longyan Yifeng 0597-2340888 2341683 [email protected] Home About us Profile Honor Patents Group Members News Company News Profession information Staff life ...
Grinding wheel and cleaning method for grinding chamber. Patent number: 9731400. Abstract: A grinding wheel includes an annular base and a plurality of abrasive members fixed to the lower surface of the base and arranged annularly. The base has a plurality of through holes for discharging a grinding water.
1999-9-23 · A dental appliance or apparatus for grinding the teeth of equine patients includes a variable speed motor and an elongated tube leading from the motor to a head member that mounts an annular disk-shaped grinding wheel that has a planar grinding surface thereon. The head member also mounts a cup-shaped guard member that has a skirt portion extending beyond the grinding surface of the …
US patent 876,372 Surface Grinding Machine was issued to Robert C. Matthews of Peru, Lasalle County, IL. It was granted on 01/14/1908.
A crack inducing point (13) brought briefly into contact with the glass surface between the stress regions (36, 37) is used to make an initial crack on a section of the cut line which extends to form a high-grade cut around the entire circumference, thus obviating the need …
2015-3-11 · Patents for B24D 18 - Manufacture of grinding tools, e.g. wheels, not otherwise provided for (4,462) 03/2015 03/05/2015 US20150060151 Cutting elements with …
RELATED APPLICATIONS. This application is a continuation of provisional application Ser. No. 60/029,692, filed Oct. 31, 1996. TECHNICAL FIELD. The present invention relates to a surface roll grinder for shaping and contouring the surfaces of a pair of rolls in a particle processing machine and particularly relates to a roll surface grinder for grinding the surfaces of rolls of a flaking mill.
For dressing grinding stones of a vertical duplex-head surface grinding machine, a dressing device 110 incorporated in the surface grinding machine as shown in Fig. 8 has been utilized. A dressing wheel 101 mounted on the dressing device 110 is arranged to implement dressing of the grinding stones 105.
A method of and an apparatus for grinding a planar surface on a workpiece when the workpiece is pressed against an abrasive belt moving in an arcuate path. The workpiece is held by the apparatus with the plane at which the planar surface is to be formed oriented generally parallel to the axis of the arcuate path of the abrasive belt, and is moved about an axis normal to and intersecting the ...
What is claimed as new and what is desired to secure by Letters Patent of the United States is: 1. A portable surface grinder comprising a frame with a pair of spaced parallel tracks, a carriage movably mounted on a pair of spaced and elongated parallel shafts, each shaft terminating in a pair of spaced wheels which precisely roll in said tracks, a grinding wheel mounted on a third shaft is ...
Wide Belt Grinding Machine SP1300. Planetary type matel deburring and edgerounding machine. Belt grinding machine SGP1000 is a very versatile machine model. The wide abrasive belt head is capable of sanding down and removing the bigger burrs on the parts, or using it for whole surface finishing purpose such as No.4 finishing.
Flat-surface grinding machines, in which the positioning in any one axis can be set up to an accuracy of at least 0,01 mm. EurLex-2. Grinding machines for working metal, any one axis can be set to an accuracy ≥ 0,01 mm excluding flat-surface grinding machines, cylindrical surface grinding machines. Showing page 1.
Suitable for different sizes and shapes. Combination systems for grinding vessels and dished ends / cones. For almost all applications in stainless steel apparatus engineering and for cladded vessels. Here is an excerpt of our standard Grinding Heads: Application: Small Vessel, Pipes. Dimension: smallest inside ø 230 mm, Length 1500-2500 mm.
2017-2-15 · A vegetable matter grinding assembly for grinding vegetable matter for smoking includes a first cylinder that may contain vegetable matter. A grinding unit is removably coupled to the first cylinder and the grinding unit is selectively manipulated. The grinding unit includes a plurality of blades to grind the vegetable matter into a plurality of fine particles.
2016-1-21 · A method for fabricating a semiconductor package, the method includes forming at least one conductive via having a first end and a second end opposite the first end in a wafer, in which the wafer has a first surface and a second surface opposite the first surface, and the first end of the at least one conductive via is exposed of the first surface of the wafer; grinding the second surface of ...
A surface grinding machine capable of being computer operated and having a multi-function capability for performing conventional slot and surface, plunge, side wheel, creep feed and short stroke grinding in any desired combination or sequence. A table containing a workpiece is driven by a highly tensioned, circulating primary belt drive system capable of providing a desired grind with a ...
US720912A US10027502A US1902100275A US720912A US 720912 A US720912 A US 720912A US 10027502 A US10027502 A US 10027502A US 1902100275 A US1902100275 A US 1902100275A US 720912 A US720912 A US 720912A Authority US United States Prior art keywords work sleeve grinding edge head Prior art date 1902-03-27 Legal status (The legal status is an assumption and is not a legal …
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