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Patent Searching and Data


Matches 451 - 500 out of 6,219

Document Document Title
WO/1993/004817A1
A numerical control device capable of working with high accuracy by accurately instructing a tool feeding speed even when there are abrupt fluctuation in the actual speed of a spindle. When the number of revolutions of the spindle (4) is...  
WO/1992/007678A1
In internal combustion motors the threaded bore of the spark plug hole can be damaged and require the recoiling of the spark plug hole. The invention provides an improved tapping tool (10) which comprises a threaded portion (9) adjacent ...  
WO/1992/004997A1
A tap tool (T) having passageways (14, 15) for the supply of fluid under high pressure and at a low flow rate is used to form threads in the wall of a preformed hole (12) in a component (10) formed of an aggressive material e.g. a metal ...  
WO/1991/016163A1
A controller which makes it possible to effect tapping to the end surface of a work while the work is being rotated. A work rotation speed instruction (Vc) from a numerical controller (90) is applied to first and second speed control cir...  
WO/1991/012917A1
An automatic thread cutting machine for nuts comprises a device for indicating breakage of the screw tap during the thread cutting process. The device comprises a tap working end checking element (17) and an element (19) for control of t...  
WO/1991/004830A1
A method and apparatus for making a globoid screw for use as a mainrotor (12) in a compressor or expander wherein a cylindrical rotor body (60) is mounted for rotation about the longitudinal axis thereof, a cutter (68) having a plurality...  
WO/1991/003349A1
The invention concerns a drive for a machine tool with relative rotational motion between tool (12) and workpiece (13) and relative feed motion in the direction of the axis of rotation, in particular a thread-cutting and/or drilling mach...  
WO/1990/014930A1
In thread cutting and slotting, indexable inserts of hard metal are now used. Usually, the inserts used have been of triangular type. In order to improve cutting economy, implying improved positioning, closer tolerances and increased str...  
WO/1990/014916A1
In thread cutting and slotting, indexable inserts of hard metal are now used. Usually, the inserts used have been of triangular type. In order to improve cutting economy, implying improved positioning, closer tolerances, and increased st...  
WO/1990/014192A1
This invention relates to a control device that can drive a compound lathe capable of tapping on the edge surface of a rotating work. This control device (100) is provided with first and second control circuits (110, 120) that control th...  
WO/1990/004494A1
A control system for a machine tool comprises a unit for generating a signal for an additional turn of the article into a position corresponding to the next helical groove to be machined. Said unit comprises a pick-up (19) of the initial...  
WO/1990/001388A1
The female threading operation is carried out by driving a tap (14) using a built-in main shaft motor (12) which directly drives the tap (14) without using transmission mechanism and using another motor (22) moves the tap together with t...  
WO/1989/010225A1
One-piece endless screws are used in container-filling installations in order to maintain an incoming sequence of containers at a predetermined distance apart. One-piece endless screws for rotationally asymmetrical moulded vessels are cu...  
WO/1989/009108A1
A device for producing threaded bore holes of different diameters and different depths in solid material using a standardized tool and using a commercially available hand drill or similar mechanical drive comprises a tool spindle (5) acc...  
WO/1989/008521A1
When a round screw is machined with a tool (TL) having a radius smaller than the radius r of arc of a screw (RST), data necessary for determining (i) a tool, passage pattern of a round threading cycle (PLi) and (ii) a cycle start point (...  
WO/1989/007027A1
The proposed threading die comprises thread-cutting combs mounted by their mating parts in the mating recesses of the casing and provided with cutting edges (9) having a thread (11). The mating parts of the combs (2) are shaped as the su...  
WO/1989/002331A1
Automatic machine (10) for processing mechanical parts, composed essentially of a frame (11) on which are mounted a delivery device (12) designed, for example, to move the nuts to be machined and threaded towards a central machining unit...  
WO/1988/006933A1
A tap (10) for forming threads on the inside of a bore which includes a hexagonal central pilot bore (22) and transverse dihedral shafts (24) constituting means for extracting a tap broken within a bore and also constituting means for de...  
WO/1988/005361A1
A combination tool for drilling a hole in a workpiece on the inward feed of the tool and for threading the hole during retraction of the tool. The tool (10) comprises a straight body with a drill point (14) at the forward end, a shank (1...  
WO/1988/003451A1
A tapping controller for effecting the tapping by turning a main spindle and moving a Z spindle in synchronism with each other by distributing the pulses. The controller has a time constant-determining means (2) for determining a time co...  
WO/1988/000507A1
A spindle driver for a machine tool which is adapted to move the spindle and a tool driven thereby in a helical path with variable pitch and with an orbital radius which may be varied. A quill (14) is mounted on a support member (12) and...  
WO/1988/000103A1
A rethreading tool (2) for cutting new threads, restoring damaged threads or cleaning dirty or corroded threads, particularly the damaged threads of an internally threaded bore (28) having some damage threads (32) and some undamaged thre...  
WO/1987/005839A1
A system for controlling the tapping operation in which the turning of tap is effected by a digital spindle motor (1) in synchronism with the drive of tap in the axial direction by a servo motor (2) for tapping operation of high accuracy...  
WO/1987/005546A1
A combination tool for drilling a hole in a workpiece on the inward feed of the tool and for threading the hole during retraction of the tool. The tool comprises a straight body with a drill point (14) at the forward end, a shank (12) at...  
WO/1985/003468A1
A tapping method for machining threads of a work piece by moving a tapping tool (4) to a slave position (Pe) in synchronization with the rotation of a spindle, and then inverting the spindle and drawing the tool (4) from the work synchro...  
WO/1984/000511A1
A wheel (16) of which the periphery is shaped as a profile which is complementary to that of the threading to be surfaced, is used as a cutter for roller burnishing a helical thread. The wheel (16) is idle mounted in rotation about an ax...  
WO/1983/002741A1
For the manufacture of a nut, a piece of plate material which is bent to form a tube (9) can be used. This tube can be placed over a mandrel (8) and clamped together around the mandrel, first by means of a pair of spring-loaded dowels (5...  
WO/1982/002162A1
A digitally controlled screw thread cutting device which can start cutting threads from an arbitrary position of rotation of the spindle. This device comprises thread cutting starting position indexing means for comparing the spindle rot...  
WO/1982/001336A1
A threading control system for tapping with a numerically controlled machine tool, in which threads formed inaccurately due to the vibration in the feeding caused by the feed motor and irregular threaded hole depth caused by the inertia ...  
WO/1982/000014A1
A method of obtaining on a workpiece a resilient screw thread with a closed helical cavity inside its profile comprises plastic deformation of the walls of a preliminarily manufactured screw groove with a depth exceeding that of the toot...  
WO/1981/002267A1
The device is adapted both to the cutting and the tapping of pipes and comprises a cutting unit (1) and a tapping unit (2) which are mounted on a common frame (3) supported by a trestle (4). The device may be disassembled in separate ele...  
WO/1981/001672A1
The tap comprises a groove-forming stage (1) with a shank (2) carrying a thread-forming stage (3) the pitch of projections of which is equal to the pitch of projections of the groove-forming stage (1), whereas the projections of the thre...  
WO/1980/000807A1
Tapping tool used for machining holes as cast in castings. The tool has cutting edges (4a to 4d), a guide portion (3), a tapping portion (2) and a shank (1) extended to the tapping portion. The holes as cast are face-cut and drilled with...  
JP2019217577A
[Subject] A cut tap which a bite lump of scraps of a between [ a female screw and taps ] does not produce easily is provided. [Means for Solution] Parts 5 are a plurality of slots 11 which extend in full thread part 4 and the direction o...  
JP2019217556A
[Subject] It bends to a round bar by a dies handle which set a dice, and carries out screw cutter processing that there is nothing. [Means for Solution] A guide plate to which a round bar is led at right angles to a screw hole is attache...  
JP2019537519A
The tapping machine (10) for carrying out tapping of the punching products, such as a nut (14) and bushing, The stem (21) which is equipped with the spindle (11) attached on the longitudinal direction axis (12) so that rotation of a tapp...  
JP6625263B2  
JP2019198942A
[Subject] A tap which can reduce load torque at the time of processing is provided. [Means for Solution] It is cut tap 1 which bites and is provided with part alpha and full thread part beta, and it bites and is larger than the degree th...  
JPWO2019098130A1
aluminum is more than 60 atom % to the total amount of the metallic elements in which hard anodic oxide coating contains half-metal, Cr is [the rate of a content ratio of the sum total of aluminum and Cr] a nitriding thing more than 90 a...  
JP6604462B2  
JPWO2018131166A1
A diamond tunic (40) is in order to solve the subject that the tool which can raise endurance is provided even if it is a case where the diamond tunic which boron contains is formed, While being formed as a layer by the side of the surfa...  
JPWO2018158976A1
A surface coated cutting tool contains a substrate and a tunic formed in the surface, and is the tunic, At least one of the layers is aluminum rich layer containing hard particles, the hard particles have a sodium chloride type crystal s...  
JPWO2018235712A1
[Subject] Even when a work material is the material with low ductility represented by titanium alloy etc., a tap which raises performance of drawing out from a work material after Female thread processing is provided. [Means for Solution...  
JP6603104B2  
JP2019188554A
[Subject] In screw cutter processing including finish-machining, it loses heart effectively, and controls vibration. [Means for Solution] After making a diameter direction cut a cutting tool deeply, sending to a shaft direction and proce...  
JP6597038B2  
JP2019185780A
[Subject] Provide a control device of a machine tool which is scraps and which Shred can carry out, and can perform exact cutting even if it does not perform the so-called processing treatment of finish. [Means for Solution] A rocking in...  
JP2019181471A
[Subject] When a punch press performs taper thread tap processing, shorten time which a solvent wiping removal of scraps takes. [Means for Solution] Tapered shape Chamfer formation part 43 for forming chamfering portion C1 in an edge par...  
JP2019185287A
[Subject] performing rocking operation which synchronized in two or more axes, and performing upvaluation operation and cut operation intermittently -- one path -- efficient -- scraps -- To shred -- provide a control device of a machine ...  
JP2019181606A
[Subject] A machine tool which can detect a load change added to a cutting tool with high precision is provided. [Means for Solution] Tool post 10 which it is equipped with cutting tool 11a~11c, carries out relative displacement in the d...  

Matches 451 - 500 out of 6,219