2788results about "Turning tools" patented technology

A cutting insert includes a rake face, a flank face, and a cutting edge constituted of a ridgeline between the rake face and the flank face. The cutting edge has a first cutting edge portion for corner processing, a second cutting edge portion for low cut-in pulling processing, a third cutting edge portion for high cut-in pulling processing, a fourth cutting edge portion for finished-surface processing, a first connection cutting edge portion, a second connection cutting edge portion, and a third connection cutting edge portion. The fourth cutting edge portion is disposed between the first cutting edge portion and the second cutting edge portion. The second cutting edge portion is disposed between the fourth cutting edge portion and the third cutting edge portion. Each of the first cutting edge portion, the second cutting edge portion, and the fourth cutting edge portion has a curved shape.

A cutting tool for turning includes a cutting insert having a cutting edge, a holder for holding the cutting insert, a wireless communication unit for transmitting information based on a measurement result of a sensor attached to the cutting tool, an acceleration sensor installed in the holder, and a control unit for performing first control for controlling activation of the wireless communication unit based on the measurement result of the acceleration sensor.

The quick tool changing device convenient for motor part machining comprises a main tool body, blade grooves are formed in the two ends of a rotating body, and turning blades are fixed in the blade grooves through locking screws; a cylinder at the bottom of the rotating body is in clearance fit with a tool pad and a hole in the main tool body, the main tool body is provided with a cylindrical ejector rod, and the cylinder at the bottom of the rotating body abuts against the cylindrical ejector rod and is locked through a bolt on the outer side of the main tool body. A key is arranged below the rotating body and is in contact positioning with a key groove in the plane of the cutter pad, and the main cutter body internally comprises an upper spraying pipe on the upper portion of the main cutter body and a lower spraying opening in the front end of the main cutter body. An inner cooling device in the main cutter body sprays cooling liquid to the cutting edge through an upper spraying pipe and a lower spraying opening, the problem of machining overheating is solved, the cutting performance is improved, cuttings can be washed away through high-pressure cooling water, and the problem of long cuttings is solved; and the rotating body with the positioning key can realize a quick tool changing function.

The present invention relates to a coated cutting tool (1) for metal machining comprising a cemented carbide substrate body (5) and a coating (6) comprising a layer of a metal nitride, there is an uppermost part of the cemented carbide substrate body (5) wherein there are uppermost WC grains adjacent to the coating (6), there is an intermediate zone between an uppermost part of said WC grains and the coating (6) comprising a peak of Me3 intensity in an EDX line scan made from within the coating (6) into a WC grain perpendicular to the surface plane of the WC grain, Me3 is one of Ti, Cr, Zr, Mo, Nb and V, the average content of Me3 within + / - 10 nm from the Me3 max peak position is from 2 to 30 at%, the Me3 within + / - 1.0 nm from the Me3 max peak position in the EDX line scan is present as a metal nitride or carbonitride, the average content of any noble gas element or combination of noble gas elements, within + / - 1.0 nm from the Me3 max peak position in the EDX line scan, is ≤0.6 at%.

A cutting insert includes at least two peripheral cutting edges. An insert holder assembly includes an insert holder which include an insert pocket and an ejector chamber connected by a through hole. The insert holder assembly includes an ejector member located at least partially in the ejection chamber, and a compressible biasing member. In an inner position, the biasing member exerts a compressive force on the ejector member. When the cutting insert is releasably attached to the insert holder by a fastening member which is connected to the ejector member, to constitute a fastened position of a cutting tool, the insert holder assembly is in the inner position and the fastening member clamps the cutting insert so that the insert lower surface abuts the pocket base surface.

The present invention belongs to the technical field of composite material processing, and relates to a hole making tool for aramid fiber-reinforced plastic and a design method thereof. The drill bit has a step reversed point angle structure, which can reduce a trust force during drilling and effectively cut off a high toughness aramid fiber, thus to improve the hole making quality of an AFRP-related component. It is proved that the new tool can significantly improve the hole making quality of an AFRP component, improve the service life and safety degree, and greatly reduce the processing cost. Therefore, the present invention has a broad application prospect in the fields of aerospace, military industries and civil application.

A cutting tool comprising a base material and a coating disposed on the base material, wherein the coating comprises a hard particle layer; the hard particle layer is formed from a plurality of hard particles including titanium, silicon, carbon, and nitrogen; in the hard particles, a concentration of the silicon periodically changes along a first direction set in the hard particles; and an orientation of the hard particle layer is a (311) orientation.

A mass damper device includes a tubular housing having a first and a second longitudinal end; at least one damping mass which is received in the tubular housing with a circumferential clearance; a first resilient element and a second resilient element. At least one end closure is arranged at the first or second longitudinal end. The housing and the end closure have cooperating mounting surfaces which define a longitudinal mounting position of the first and second end closures. The mounting surfaces are arranged such that the first and second resilient elements are compressed between the damping mass and the end closure, when the first and second end closures have been mounted, at the longitudinal mounting position, to the housing.

The invention discloses a horizontal lathe for finish machining of a workpiece, and relates to the field of lathes, the horizontal lathe comprises a lathe body, a spindle box, chucks, a tool rest, a second electric push rod, a cooling chip removal assembly and an annular workpiece, the number of the chucks is two, the chucks are installed on the left side and the right side of the interior of the lathe body respectively, and the chuck on the left side is fixedly connected with an output shaft of the spindle box; the spindle box is fixedly installed on the left side of the inner wall of the lathe bed. Through cooperation of the annular workpiece, the chuck, the chuck jaws, the adjusting assembly and the driving motor, the chuck jaw adjusting effect in three directions is achieved through the arrangement of the adjusting assembly, the chuck adopts a three-jaw self-centering mode, the chuck rapidly and firmly clamps the annular workpiece, the chuck jaws are subjected to precise grinding, and the machining precision is improved. The clamping face is attached to the outer circle or the inner hole of the circular-ring-shaped workpiece, the chuck jaw is used for meeting the requirements of different circular-ring-shaped workpieces, automatic alignment and clamping are achieved, manual alignment errors are reduced, the coaxiality of the clamped circular-ring-shaped workpieces is guaranteed, and the clamping device is a core part for positioning and machining the circular-ring-shaped workpieces.

The invention relates to the technical field of boring tools, and discloses a shockproof and noise-reducing boring tool which comprises a tool body and a tool bit seat, a damping structure is arranged in the tool body, a mounting clamping groove is formed in the surface of the tool bit seat, and a blade is movably clamped in the mounting clamping groove. According to the tool, through the damping structure and the assembling assembly, reliable positioning and locking of the tool bit seat and the tool body are achieved through cooperation of a positioning clamping hole and a telescopic clamping pin, and after an assembling bolt is screwed into a connecting threaded groove through a connecting screw hole, the tool body and the tool bit seat are firmly connected and assembled; shock-proof damping oil and a buffering seat supported by a buffering spring are arranged in the damping cavity, vibration energy from the tool bit seat can be directly borne and absorbed, the vibration energy is converted into elastic potential energy of the spring through deformation, the buffering and damping effects are achieved, the vibration amplitude of the buffering seat is reduced through the damping effect, the vibration energy is further consumed, and the damping effect is enhanced.

Provided is a cutting insert that allows for a large degree of cutting flexibility while making it easier to avoid large chatter vibrations. A land surface has, in a cross section orthogonal to the cutting edge, a convex-curved first land surface, a convex-curved second land surface, and a concave-curved third land surface. In the cross section orthogonal to the cutting edge, the radius of curvature of the first land surface is smaller than the radius of curvature of the second land surface.

The present invention provides a process of forming a cutting tool comprising the steps of: additive deposition of a tool material comprising at least one of: tungsten carbide, TaNbC, a tungsten carbide containing alloy or composite, or a TaNbC containing alloy or composite onto a base substrate having a longitudinal axis, said tool material being deposited onto the base substrate to form a deposit body configured to form at least one cutting formation therein; and subsequently subtracting selected portions of the deposit body to produce at least one cutting formation having a selected cutting edge configuration, thereby forming the cutting tool.

The utility model is suitable for the technical field of deburring cutters, and provides an aluminum pipe inside and outside deburring cutter which comprises a supporting disc. The three first ball screws and the second ball screw rotate in the supporting disc, the second ball screw is located between the two first ball screws, and the three first ball screws are axially arranged in the supporting disc at equal intervals; the driven bevel gears are respectively fixed at one end of the ball screw I and one end of the ball screw II; the movable frame is fixed on a nut seat on the first ball screw through a screw; the rotating rod rotates on the inner side wall of the moving frame; through mutual cooperation of the rotating rod and the deburring cutter, on one hand, the cutter can be positioned on the inner side of the aluminum pipe with gears of different inner diameters, it is guaranteed that the deburring cutter is continuously attached to the inner side wall of the aluminum pipe, the aluminum pipe is prevented from being scratched during deburring, and on the other hand, it can be guaranteed that the cutter moves stably in the aluminum pipe, and uniform deburring of the inner side wall of the aluminum pipe is achieved.

To provide a body provided with a flow passage having a sufficient cross-sectional area while securing sufficient rigidity, and a cutting tool.SOLUTION: A body 10 of a cutting tool 1 includes: an insert pocket 20 to which a cutting insert 60 is attached; a screw hole 22 into which an insert mounting screw 70 for fastening the cutting insert 60 to the insert pocket 20 is screwed and inserted; and a chip discharging coolant flow passage 50 for discharging coolant C from a discharge port 52 open at a tip. In a cross section orthogonal to an axial direction, at least a portion of the chip discharging coolant flow passage 50 has a distance Da from the insert pocket 20, a distance Db from the screw hole 22, and a distance Dc from an outer periphery 10c of the body 10 which are equal to or larger than a prescribed dimension.SELECTED DRAWING: Figure 5

The invention relates to the technical field of turbine shaft machining, and discloses a turbocharger turbine shaft machining device which comprises a machining bin and further comprises a visual door plate installed at an open hole formed in the front face of the machining bin and used for opening and closing the visual door plate and taking and placing the turbine shaft. The machining table is fixedly connected to the interior of the machining bin and used for machining the turbine shaft; the clamping mechanism is arranged above the machining table and used for clamping the turbine shaft; and the moving mechanism is arranged above the processing table. By arranging the clamping mechanism and adopting the scheme that a conical groove pushes a plurality of sets of push rods and clamping blocks to synchronously and radially move, high-precision automatic centering of the turbine shaft is achieved, it is guaranteed that the rotation center of a workpiece and the machining center strictly coincide, the machining roundness is guaranteed from the source, meanwhile, a first spring provides uniform clamping force, and the machining precision is improved. And deformation or surface damage of the thin-wall part possibly caused by a traditional rigid clamp is avoided, and rigid-flexible precise clamping is achieved.

A cutting tool includes a tool body having at least one seat for receiving a cartridge or a cutting insert. The seat includes at least one support surface. The cutting tool body includes a sensor retaining structure adjoining the support surface and a piezo sensor arranged in the sensor retaining structure. The cutting tool has a clamping device for securing the cartridge or cutting insert. The piezo sensor is an elastically deformable piezo sensor, which has a central longitudinal axis and a direction of sensitivity perpendicular to the central longitudinal axis. The piezo sensor has a measuring section, along which the central longitudinal axis is substantially parallel to the support surface. The piezo sensor is elastically deformed in the sensor retaining structure to a pre-stressed initial state and deformable to a plurality of further stressed measuring states.

A coated cutting tool for metal machining has a base body of cemented carbide, cermet, ceramics, steel or high-speed steel, and a wear resistant coating deposited thereon. The coating includes a layer of Ti1-xAlxCyNz with 0.40≤x≤0.95, 0≤y≤0.10 and 0.85≤z≤1.15, and a portion of MeCaNb, 0≤a≤1, 0≤b≤1, a+b=1, present on the layer of Ti1-xAlxCyNz. The portion of MeCaNb covers from 5 to 28% of the layer of Ti1-xAlxCyNz. A process for the production of the coated cutting tool and the use of the coated cutting tool in machining of stainless steel is also provided.

The application provides a blade sharpening and width measuring device of a fabric cutting equipment, which comprises a bottom plate, a sliding table, a motor assembly, a transmission wheel assembly, a blade sharpening assembly, a driving assembly and a measuring assembly; a grinding wheel set is installed on the sliding table, the sliding table moves towards the direction of the cutter under the driving of the driving assembly, the grinding wheel set abuts against the cutter, the motor assembly starts the rotation of the grinding wheel set through the transmission wheel assembly, the measuring plate moves with the sliding table, the slope on the measuring plate moves with the sliding table, the distance between the slope and the sensor unit is close, when the grinding wheel set abuts against the blade edge, the distance between the slope and the sensor unit no longer changes, the sensor unit detects the distance at this time, and then the distance is converted into actual blade sharpening compensation data, so that the actual blade width data can be quickly obtained.

The invention relates to a tooth profile end face rounding device special for an aero-engine gear and a machining method. The tooth profile end face rounding device comprises a movable platform, a 3D camera, a positioning tool, a special cutter and a computer. Data acquisition is carried out on the gear end face tooth profile in the sealed box body through the 3D camera, the computer generates an accurate machining path according to the acquired data, and then end face tooth profile rounding machining is carried out on the gear on the numerical control machine tool through the special tool. The positioning tool is provided with four gear positioning stations, four gears can be machined at the same time, and the machining efficiency is improved. The positioning tool comprises a bottom plate, a positioning block and a positioning flange, and six-degree-of-freedom complete positioning of the gear is achieved through precise matching. The device has the advantages of being high in machining precision, high in machining efficiency, high in adaptability, stable in machining quality and the like, and meets the machining requirements of aero-engine gears of different specifications and types.

The invention discloses a high-wear-resistance hard alloy CVD (Chemical Vapor Deposition) coated cutting tool and a preparation method thereof, WC-Co (4-8) Ti (1-5) Ta (1-5) Nb (0.2-2) Cr (0.2-2) Fe (0.2-2) Al (0.2-2) is used as a blade substrate, TiN, TiCN, Al2O3 and a surface TiN coating are deposited firstly, and then the coated blade is subjected to subzero treatment and tempering treatment. According to the method, through subzero treatment between the base body and the coating, the compressive stress is introduced into the coating or an interface by utilizing the difference of the extremely low temperature shrinkage rates of the coating and the base body, the tensile stress caused by the compressive stress neutralization deposition is utilized, and the uniform distribution of nanoscale carbide precipitates is promoted by utilizing a proper tempering process; and the cold brittleness phenomenon caused by subzero treatment and the generated high residual compressive stress are avoided, and the abrasion resistance and the anti-stripping capacity of the base body are further improved. According to the method, the driving effect of residual tensile stress in the CVD coating on crack initiation is reduced, the crack density is greatly reduced, the mechanical property of a hard alloy matrix and the stress state of the coating are synergistically improved, and the mechanical property of the cutter is enhanced.

The present invention relates to a drill bit (10) comprising: - a body (12), with a central longitudinal axis (AX) and longitudinally delimited by an end rim (14), intended to be rotated about the longitudinal axis to penetrate longitudinally from the end rim through a block in a penetration direction (T1); - a series of teeth (18) carried by the body and projecting from the end rim (14) in the penetration direction to contact the block, these teeth being spaced apart along the circumference of the end rim; wherein recesses (20) are formed in the body and spaced apart along the circumference of the end rim, each recess extending from the end rim; and wherein each tooth (18) is arranged circumferentially from each recess (20). Figure 2a

The present invention realizes a holder with which it is possible to reduce the risk of damaging a work surface of a material to be cut. The width of a first ridge in the direction along a third reference axis is greater than the width of a third ridge in the direction along the third reference axis.

The utility model discloses a combined type welding electrode coping cutter which comprises a cutter holder, a main cutting edge, an auxiliary cutting edge and a fixing screw. Wherein an inner cavity of the tool apron is provided with two blade mounting holes penetrating through the tool apron, a main cutting edge and an auxiliary cutting edge are respectively mounted in the two blade mounting holes, the main cutting edge and the auxiliary cutting edge are fixedly connected with the tool apron through fixing screws, and chip grooves are formed in the positions, located on one sides of the blade mounting holes, in the tool apron. The service life of the coping cutter is greatly prolonged, the self-chip removal effect is improved, vertical axial precision limiting is achieved by fixing the screw shaft shoulder, it is guaranteed that the main cutting edge and the auxiliary cutting edge are located on the same horizontal plane on the cutter holder, machining stability is guaranteed, and the design can effectively reduce cutter edge replacement cost and improve machining efficiency. And the tool apron is provided with a through chip groove, and the clearance angle of the blade is optimized, so that waste chips can be discharged more conveniently, and the grinding effect is ensured.

A cutting tool includes: a cutting edge configured on an intersecting line of a rake surface and a flank; a breaker wall formed inside the cutting edge and protruding above the cutting tool; a boss part including a boss surface formed above the breaker wall; and a plurality of recessed parts formed in the boss part so as to extend toward the cutting edge. The width of the breaker wall in a direction in which the cutting edge extends along an intersecting line (including a virtual intersecting line or a virtual extension of the intersecting line) of the boss surface and the breaker wall, is greater than the width of a groove formed by the recessed part along the same intersecting line.

A cutting tool includes a substrate at least partially coated with a coating. The substrate is a cemented carbide, cermet or ceramic. The coating includes a layer of Ti(C,N), a layer of Al2O3 and there between a bonding layer. The Ti(C,N) layer is composed of columnar grains, wherein an average grain size D422 of the Ti(C,N) layer is 25-50 nm, and wherein the Ti(C,N) layer includes a portion B1 that is adjacent to the bonding layer. An average grain size of the Ti(C,N) grains in portion B1 is larger than the average grain size D422 in the whole Ti(C,N) layer. In the portion B1 of Ti(C,N) layer the Ti(C,N) grains has an average grain size of 140-300 nm.

A cutting insert according to an aspect includes a base portion and a cutting portion. The cutting portion includes a front end surface, an top surface, a first lateral surface, a second lateral surface, a front cutting edge, and a lateral cutting edge. The front cutting edge includes a first cutting edge and a second cutting edge, and a radius of curvature of the first cutting edge is greater than a radius of curvature of the second cutting edge.

A machining method for cutting process by making a workpiece (W) and a cutting tool (11) move relatively, characterized by using a cutting tool (11) comprising a cutting insert (28) having a first curved part (40a), a second curved part (40c) formed continuing from the first curved part (40a) and with a curvature smaller than the first curved part (40a), and a connecting part (40b) connecting the first curved part (40a) and the second curved part (40c) and by cutting while positioning the connecting part (40b) at the front end in the cut direction perpendicular to the direction of relative movement at the time of cutting.

The invention relates to a cutting insert (1, 10) for a turning tool. The cutting insert comprises a top surface (2), a bottom surface (3), a front surface (6), a rear surface (7) and first and second side surfaces (4, 5). A longitudinal axis (A1) intersects the front and rear surfaces (6, 7) and extends mid-way between the first and second side surfaces (4, 5). A cutting edge (8) is formed at an intersection between the top surface (2) and the front surface (6), wherein the cutting edge (8) comprises a surface generating cutting edge (9), a first major cutting edge portion (17) and a first corner cutting edge (15). The first major cutting edge portion (17) extends rearward from the surface generating cutting edge (9), and the first corner cutting edge (15) extends rearward from the first major cutting edge portion (17). In a plan view of the top surface, the first corner cutting edge (15) is convexly curved and has a first length of extension (L1) and the surface generating cutting edge (9) is convexly curved and has a second length of extension (L2), wherein the first length of extension (L1) is greater than the second length of extension (L2).

The utility model provides a cutter and a machining center for machining a ring groove structure, the cutter for machining the ring groove structure comprises a cutter bar and a cutting end head, the cutting end head is connected to one end of the cutter bar and is obliquely arranged towards the direction close to the cutter bar, the cutting end head is provided with a first side face, a cutting face and a second side face, the cutting face is arranged on the side, away from the cutter bar, of the cutting end and is opposite to a workpiece to be machined so as to be matched with the workpiece in a cutting mode, the first side face and the second side face are arranged on the two sides of the extending direction of the cutting face respectively, a chip groove is formed in the second side face, the cutting face comprises a first inclined face, and the first inclined face is provided with a second inclined face. The side, away from the second side face, of the first inclined face is obliquely arranged in the direction away from the workpiece, and therefore generated cuttings can be discharged through the chip discharging groove in time, the chip discharging capacity is improved, meanwhile, the contact area of a tool and the workpiece is reduced, and the adverse effect of the cuttings on the quality of the workpiece is reduced.

The invention discloses a cutting blade and a cutting tool, and relates to the technical field of cutting tools, the cutting blade is provided with an upper wall surface and a side wall surface, a cutting edge is formed at least partially at the intersection of the upper wall surface and the side wall surface, the cutting edge at least comprises a tool nose cutting edge extending in an arc shape, and the upper wall surface is provided with a front tool surface, a chip breaker groove and a top surface. The upper wall face is provided with a protruding part corresponding to the tool nose cutting edge, at least part of the protruding part is located in the chip breaker groove, the protruding part extends to the front tool face from the top face, a flow guide groove is formed in the protruding part, and the flow guide groove extends to the front tool face from the top face. The protruding part is arranged and can be at least supported between the groove wall of the chip breaker groove and the front tool face, so that the structural strength of the cutting blade is improved; a flow guide groove is further formed in the protruding part, chip curling is facilitated, chip removal smoothness is improved, the risk of chip blockage is reduced, meanwhile, the flow guide groove can guide cutting fluid, the cooling efficiency of the cutting blade is improved, and the risk of tipping or damage of the cutting blade is reduced.