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JP2007332948A |
To manufacture a highly accurate product (less than 20 μ), by largely shortening processing time, by processing a port by using a stable solid material. Boring of a cylinder is performed, after making a port shape by a drill (including ...
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JP4027023B2 |
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JP4024122B2 |
A cylinder liner (1) for a piston engine, such as a large two-stroke crosshead engine, has a running surface for the piston rings on the inner surface (7) of the liner. The cylinder liner has an internal diameter in the interval from 25 ...
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JP4019533B2 |
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JP4016426B2 |
A method and apparatus for producing conical holes in a workpiece by using a substantially cylindrical cutting tool having a cutting head diameter essentially smaller than the top and bottom diameter of the hole to be formed. The method ...
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JP4017895B2 |
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JP4010142B2 |
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JP4007825B2 |
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JP2007290126A |
To provide a boring tool to admit adjusting the position of a cutting tool not by means of manual adjustment but through a mechanical operation. Method and device for adjusting the position of the cutting tool include the boring tool 20 ...
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JP2007268652A |
To provide a tool holder and a printed circuit board processing machine improved in the machining efficiency. A magazine 17 storing a plurality of tools 15 individually is provided with a storage device 20 for storing data and an informa...
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JP2007268685A |
To provide a drilling device for a lens where a drilling means is relatively tiltably pivotally supported with respect to an eyeglass. The drilling device for the lens is equipped with a drilling means (drill 17 for drilling a hole) for ...
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JP2007260887A |
To provide a composite working tool constituting the composite working tool so as to be replaceable with an automatic tool without becoming expensive more than a conventional tool, and developed for both an exclusive machine tool and a m...
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JP3987895B2 |
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JP3989187B2 |
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JP3985998B2 |
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JP3984344B2 |
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JP3976289B2 |
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JP3970326B2 |
The invention relates to a valve self-piercing tap for a plastic tube with a plastic housing (1) which has a branch connection member (2) and holds a valve body (3), in which a blocking body (5) engaged with a threaded spindle (6) and ca...
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JP3965341B2 |
To provide a processing jig for oval holes to be engaged with a reference hole formed in a work to be processed, whereby an oval hole is formed by spreading the reference hole using a boring tool with the aid of the jig. A projection 20 ...
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JP3968054B2 |
To provide a printed circuit board processing machine improved in working efficiency without impairing accuracy in processing. A pressure foot 132 is provided with a plurality of holes 50 opened on one side to a lower face 123a with an u...
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JP3967991B2 |
To provide a board holding-down device for a printed circuit board drilling machine having a large machining region and capable of reducing the amount of air cut-off. This board holding-down device 6 is provided with a body part 6A; a bu...
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JP3962512B2 |
To provide an anti-runout device for tool with a simple independent structure easily mountable on a device frame, securing an enough processing stroke while preventing a runout of a long tool. This device comprises a holder, a guide bar,...
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JP3954033B2 |
To provide a trailing edge cooling member for a turbine including cooling blades and vanes. The trailing edge cooling member has an aerofoil 42 equipped with a first end, a second end, a leading edge 60, a trailing edge 62, and an inner ...
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JP3953269B2 |
To suppress lowering of sealing performance of a gate valve body due to chips deposited at a spot where a valve seat is to be formed in a valve case, while intending to make the branch structure of a fluid transporting pipe compact and s...
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JP3954474B2 |
To estimate true coordinates for a guide mark, with the effect of altitude removed out of a guide mark X-ray image formed on a multilayer printed circuit board conductor layer. A guide mark M formed in a conductor layer in a multilayer p...
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JP3944391B2 |
To fundamentally solve the problems that it is hard to increase the thickness of material when a high dimensional accuracy is pursued and it is hard to obtain the dimensional accuracy, and the cost is remarkably increased like a quadrati...
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JP3939166B2 |
To provide a machining tool device capable of giving a machining tool motion different from that of a tool main shaft without using a special machine tool. The valve seat machining tool device makes the tool main shaft 20 rotate around a...
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JP2007516855A |
A stop for use with an electric drill bit, the stop having at least one threaded sleeve for positioning the stop relative to a surface into which the drill bit will extend. The stop may have both an inner and an outer sleeve. The sleeves...
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JP2007152437A |
To remove padding formed at the lower end of a cylinder bore by cutting in casting an engine block for a V-type engine.A cutter 6 located on the same axis for the cylinder bore 2 is caused to approach from the deck surface 5 of the engin...
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JP3132803U |
To provide a structure in which a ceramic insulator can be easily provided in a spindle elevating device of a drill machine for a printed circuit board. In the insulating structure of a spindle lifting device of a drill machine for a pri...
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JP3927739B2 |
To provide a printed board working machine capable of suppressing vibration generated in the printed board working machine even when the value of acceleration of a spindle holding body is great. A return spring 30, a counter 50, a spring...
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JP3930478B2 |
A fitting for connection to a pipe includes a sleeve, in which a body is axially displaced along a sleeve axis, whereby the body has a drill for drilling into the pipe and/or a valve body of a valve. The fitting also includes a branch sl...
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JP3926446B2 |
To provide a deep through-hole drilling method, capable of reducing labor for arrangement and shortening a time for drilling. Two gun drills 2a, 2b are opposed to each other at both sides of a work 1 to drill two holes 3a, 3b at both sid...
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JP3917851B2 |
To provide a welded joint part cutter for a valve seat with a valve case, which can easily be fitted to the valve case and has good work efficiency. This cutter is provided with a base 20, a cutting heads 10 formed by a chuck 70 fitted t...
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JP3916445B2 |
To provide a spectacle lens processing device capable of easily conducting favorable drilling work regardless of the degree of skill of workers. This spectacle lens processing device to process circumferential edges of spectacle lenses i...
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JP3909909B2 |
To provide a printed board presser device in which breakage of a drive source to drive a presser piece to rotate is prevented to improve reliability by providing the drive source on the fixed member side for disconnecting it from vibrati...
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JP2007098502A |
To provide a method, machining an oblong hole in a printed circuit board without inclination of an axis and with good accuracy using a drill.In this oblong hole-machining method for the printed circuit board, a plurality of circular hole...
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JP3907900B2 |
To improve the working accuracy of a crankshaft bearing hole while preventing the increase of the cost as possible. Crankshaft bearing holes 3a, 3b, 3c, 3d, 3e of a cylinder block 1 are finished by an intermediate finishing tool 11 and f...
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JP2007509487A |
A multilayer circuit board is provided with at least one signal layer, at least one feedback layer, and at least one dielectric layer positioned between the signal layer and the feedback layer. The signal layer is connected to at least o...
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JP3903717B2 |
To easily work a reverse taper hole by using an existing universal machine tool facility of a machining center, etc. A cutter 1 is inserted into a lower hole H in a state of decentering a shaft center O1 of a tool 1 against the lower hol...
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JP3894768B2 |
To provide a spring made of a fluoroplastic resin which is difficult to injection-mold differently from general synthetic resin, and a check valve whose all parts are made of fluorocarbon resin incorporating the spring. A bar material of...
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JP3896785B2 |
To secure favorable position precision and finish of a through slit in a laminated board. First prepared holes are provided at both ends of the through slit. Next, prepared holes are formed plural times to overlap with the first prepared...
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JP2007504959A |
A tool for fine machining of work pieces involving metal removal is proposed having at least one cutter ( 13 ) for preliminary machining with a geometrically defined cutting edge ( 15 ) and having at least one cutter ( 21 ) for final mac...
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JP3884884B2 |
To efficiently perform the cutting work for a pocket deep and having a small radius of curvature in inner corners and an inner corner called pin corner having an acute angle such as 90 degrees. A cutting tool 50 having a cutting edge 52 ...
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JP3874060B2 |
To solve the problem that tool replacement work is complicated, and a huge cost is required for preparing a number of tools in the case of counterboring on a circular-arc outer surface side. A cutting tool S is rotated on a tool rotation...
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JP3873190B2 |
A rail drilling device, comprising a rail front retainer (15) having a slide tube (25) slidably inserted into the through hole of a frame front wall (12), a female screw member (30) threaded with the slide tube (25) so that the longitudi...
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JP2007007788A |
To enable counter-bored hole drilling from a rear face side of a lens without complicating a spectacle lens machining device or increasing the size of the device.This device is provided with a drilling means having a drilling tool for dr...
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JP2006346786A |
To provide a part machining method capable of securing productivity and quality, and to provide a NC machine tool for carrying out this part machining method.A relief button of a relief valve R2 is operated by an operation part 30 provid...
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JP2006528561A |
A single stepped tool having spiral flutes and a method for using the tool to cut a stepped valve stem hole through the sidewall of a vehicle wheel.
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JP3847182B2 |
To form a reference hole at a position where defect rate can be reduced more than other position. Origin coordinate and a coordinate axis angle of a first coordinate system are obtained using a point of the center of gravity as an immobi...
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