3921results about "Turning tools" patented technology

The invention provides a tool cutting edge parameter optimization method based on workpiece-tool performance parameters, and relates to the technical field of tool cutting edge parameter optimization, and the method specifically comprises the steps: obtaining cutting characteristic parameters and workpiece characteristic parameters under different tool cutting edge parameter combinations; establishing a tool characteristic prediction model, inputting a tool cutting edge parameter, and outputting a cutting characteristic parameter; tool cutting edge parameters are randomly combined under constraint conditions, and a prediction model is input to obtain cutting characteristic parameters; carrying out data processing and correlation analysis on the workpiece combination, and constructing a function relationship among the cutting characteristics, a tool life coefficient and a workpiece surface quality coefficient; and iteratively optimizing individuals of the initial population through a genetic algorithm, and extracting an optimal cutting edge parameter of the cutter. The intelligent level of tool design is remarkably improved, the tool design can be optimized in real time according to the actual machining condition, different machining conditions can be effectively coped with, and the optimal performance of the tool in actual application is ensured.

The invention relates to the technical field of numerical control machine tools, in particular to a polyhedral machining center based on dynamic compensation and five-axis linkage, which adopts an asymmetric swing shaft system design, a workbench integrates X / Y translation and C-axis rotation functions, and a cutter has Z-axis lifting and Y-axis swing capabilities (the swing range of B-axis is-30 degrees to + 120 degrees). And efficient machining of complex curved surfaces and deep cavity structures is achieved through five-axis linkage. The core innovation comprises the following steps: a temperature sensor is embedded in a main shaft bearing seat to monitor the temperature rise in real time and calculate the thermal deformation compensation amount; the vibration sensor is embedded into the cutter handle clamping mechanism, and cutting vibration is dynamically restrained; based on a tool path dynamic correction technology of an RTCP algorithm, track offset caused by multi-axis rotation is eliminated through space coordinate transformation.

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.

The present invention discloses a bionic swallowtail-shaped micro-textured tool and a preparation method thereof, belonging to the technical field of metal cutting tools. The preparation method is based on a cemented carbide tool substrate, and combines the structural advantages of the swallowtail structure in reducing frictional resistance and accelerating the flow of gas and liquid. On this basis, a corresponding functional tool is prepared by machining a bionic swallowtail-shaped groove and surface texture. The designed tool groove is used to discharge chips and store and convey cutting fluid; the surface texture is used to reduce the frictional force between the chip and the tool during cutting and promote the discharge of chips, thereby reducing the cutting force, improving the tool life and processing efficiency. Compared with the prior art, based on the bionic principle, the present invention combines the tool groove and the surface texture to design and prepare a functional tool, achieving the functional requirements of improving the heat resistance and wear resistance of the tool, prolonging the tool life, reducing the production and processing cost, and realizing green processing, and meeting the production and processing needs.

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 invention relates to a tool holder for the, in particular force-fit, mounting of a tool, in particular a rotary tool, and to a kit, in particular for such a tool holder. The tool holder comprises a receiving body which has a rotary axis, a rear interface for receiving the tool holder in a work spindle of a machine tool, a front receiving section for the force-fit retention of the tool, in particular the rotary tool, a coolant bore arranged along the rotary axis between the interface and the receiving section, by means of which coolant can be guided along the rotary axis from the interface to the receiving section and which has a first area with a second area adjoining it in the direction of the rotary axis towards the receiving section, wherein a diameter of the first area is larger than a diameter of the second area, and a coolant pipe arranged in the first area of ​​the coolant bore which has a diameter larger. Towards the receiving section, a cavity is formed in the receiving body or in the first area with the increased diameter between the coolant pipe and the smaller diameter second area of ​​the coolant bore. To improve the coolant flow and thus the cooling of a tool, the tool holder is designed with a bridging element in the cavity between the coolant pipe and an interface-side end of the smaller diameter, second area. This bridging element is designed to allow coolant flow and seal the coolant flow against the cavity.

A cutting insert has a top surface, a bottom surface, and an outer peripheral surface. A ridgeline between the top surface and the outer peripheral surface includes a first cutting edge. A protrusion is provided on the top surface. In a first cross section, a distance between the first cutting edge and the protrusion in a direction perpendicular to the bottom surface is defined as a first distance. In a second cross section, a distance between the first cutting edge and the protrusion in a direction perpendicular to the bottom surface is defined as a third distance. The third distance is longer than the first distance. A ratio of a height of the protrusion to a width of the protrusion in the second cross section is smaller than a ratio of a height of the protrusion to a width of the protrusion in the first cross section.

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.

This drill has an integrally formed extension (3) at its front end, which is smaller in diameter than the other drill bit (1). The extension (3) at the front end of the drill bit (1) preferably has a diameter d that is half the diameter D of the remaining drill bit (1) located behind the extension (3). The drill bit allows for perfect positioning, centering, and guidance of the hole along the intended drilling line.

The invention belongs to the technical field of mechanical cold machining, and particularly relates to a precise boring cutter, a blade adjusting device and a blade adjusting method. The tool setting device comprises a base, a supporting and positioning mechanism and a measuring mechanism, the supporting and positioning mechanism comprises a V-shaped tool handle supporting and positioning structure used for positioning a tool handle or a tool setting standard part and a tool body adjusting structure used for adjusting the extending length of a tool body, the V-shaped tool handle supporting and positioning structure is installed on the base, and the tool body adjusting structure is installed on the tool handle; the measuring mechanism comprises a dial gauge and a dial gauge stand, the dial gauge stand is installed on the base, and the dial gauge stand comprises a movable gauge stand supporting seat and a fixed gauge stand supporting seat which can slide relatively or be locked relatively; and when the tool nose of the tool body is vertically aligned with the 0-degree line of the indexing table, the indexing table measures according to the angle of the cutting edge of the tool body. The extension length of the boring cutter can be corrected, repeated positioning is achieved, re-sharpening of the hard alloy boring cutter and the diamond blade is achieved, the equipment investment is reduced, the cutter cost is reduced, and the working efficiency is improved.

The invention relates to the technical field of machining, in particular to a parallel double-spindle double-station intelligent turning center which comprises a bottom plate, vertical plates extending upwards are fixedly connected to the left side and the right side of the bottom plate, first supporting seats are fixedly connected to the upper side of the bottom plate in a bilateral symmetry mode, and second supporting seats extending upwards are fixedly connected to the rear portion of the upper side of the bottom plate. The machining mechanism and the feeding and discharging mechanism are used in cooperation, the machining efficiency of workpieces can be effectively improved in a double-spindle and double-station synchronous machining mode, meanwhile, by means of an oblique feeding mode, the machining efficiency of the workpieces can be effectively improved, and the machining efficiency of the workpieces can be effectively improved. According to the tool turret assembly, the machining influence of cooling liquid and chippings on workpieces is effectively reduced, the follow-up cleaning time is saved, the tool can be rapidly assembled and disassembled, the assembling and disassembling efficiency of the tool turret assembly is effectively improved, installation is stable, and time and labor are saved in use.

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 system and method for monitoring and predicting wear of a cutting tool used for machining a workpiece is disclosed. The system includes a cutting tool having a shank and a cutting head. The system also includes a split, modular and wireless wear detection system including one or more sensors mounted to the cutting tool for providing a data signal representative of a physical condition of the system, and a data recording and data transmitting device for recording the data signal from the one or more sensors and for generating and transmitting a data signal to a processor. The processor applies a machine learning data processing technique in real time to monitor and / or predict a condition of various components and / or parameters of the system during a metal cutting operation.

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 has an indexable cutting insert removably secured to a holding portion of an insert holder. The cutting insert has opposing first and second end surfaces with an insert peripheral surface and a central axis extending therebetween, at least two cutting portions, and at least one mounting cut-out. Each cutting portion has a cutting edge formed by the intersection of rake and relief surfaces formed on the insert peripheral surface, one rake surface facing in a first rotary direction about the central axis and one rake surface facing in an opposite second rotary direction. Each mounting cut-out extends between the first and second end surfaces and has spaced apart first and second flank surfaces disposed on a cut-out peripheral surface which is separate and spaced apart from the insert peripheral surface. The first and second flank surfaces face in the first and second rotary directions, respectively.

An efficient chatter cutting method for a difficult-to-machine material is provided, relating to the technical field of cutting processing. The method includes the following steps: installing a chatter tool bar on a machine tool, starting the machine tool, and inducing self-excited chatter for chatter cutting through cutting energy of a tool system; during chatter cutting, exciting the chatter tool bar to induce stable vibration, making the tool form a ratchet-shaped motion trajectory, the ratchet-shaped motion trajectory includes processes that the tool is pressed on a surface of a workpiece and the tool is separated from the surface of the workpiece, and forming a ratchet-shaped surface morphology on the surface of the workpiece; and during separation of the tool from the surface of the workpiece, enabling cutting fluid to enter a separated cutting zone for cooling and lubrication, and reducing cutting temperature.

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.

The invention relates to the technical field of machining numerical control tools, in particular to a multifunctional indexable heavy boring head which comprises a main body, a blade seat and a blade, the main body comprises a body, a seat body and a connecting part which are integrally formed, the blade is fixedly installed on the blade seat, the seat body comprises a seat body H and a seat body S, the seat body H is higher than the seat body S, and the connecting part is connected with the seat body H; the blade seat comprises a blade seat H and a blade seat S, the blade seat H is higher than the blade seat S, the blade seat H is fixedly installed on one seat body, and the blade seat S is fixedly installed on the other seat body. The device has the advantages that the device is simple in overall structural design, easy to understand by an operator, small in accessory type number and convenient to assemble; by means of the same double-edge heavy boring head, switching between symmetrical boring and stepped boring can be achieved only by adjusting the position of the tool changing base on the base body and then adjusting the blade in the radial direction, tool changing is not needed, production efficiency is improved, switching is easy and convenient, and the tool storage pressure of a tool stock is reduced.

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.

Rotary cutting tools are disclosed comprising shanks and replaceable cutting inserts are provided. A head of the cutting insert includes insert centering surfaces that contact the pocket centering walls of the shank, and insert drive surfaces that contact the torque transmitting pocket drive walls of the shank. The configurations and sizes of the shank and cutting insert features are controlled to provide improved torque transmission, rigidity and stability during operation of the rotary cutting tools.

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.

The invention relates to the technical field of cutting tools, in particular to a solid sweating bionic tool, a dry type cutting cooling method and a manufacturing process. The cutter body is provided with a cutting edge area and is made of a matrix phase material, a bag-shaped hair-fixing phase material is doped into the matrix phase material of the cutting edge area, the melting point of the hair-fixing phase material is lower than that of the matrix phase material, a part of the hair-fixing phase is exposed on the surface layer of the matrix phase, and a part of the hair-fixing phase is embedded into the surface layer of the matrix phase; the hair fixing phase can be heated to form an air film covering the surface of the cutter, and the air film can prevent cutting heat from being transmitted to the cutter and can form phase change heat dissipation when the air film is broken. The sweating structure is designed in the blade area of the cutter, a dynamic gas film is formed through gasification phase change heat absorption of a low-melting-point material, accurate cooling of the core cutting area is achieved, the service life of the cutter is prolonged, and meanwhile use of cutting fluid is avoided.

The invention belongs to the technical field of powder metallurgy, and particularly relates to a high-toughness hard alloy and a preparation method and application thereof.The preparation method comprises the steps that tungsten powder is subjected to high-energy ball milling, and then treated tungsten powder is obtained; the preparation method comprises the following steps: dissolving water-soluble lanthanum salt, cerium salt and chromium salt, and performing spray drying to obtain La-Ce-Cr composite powder; the treated tungsten powder, titanium dioxide powder, cobalt powder, La-Ce-Cr composite powder and carbon powder are mixed, and mixed powder is obtained; sintering the mixed powder to obtain alloy powder; the tungsten carbide and the alloy powder are flexibly mixed, and a mixture is obtained; and pressing and sintering the mixture to obtain the high-toughness hard alloy. The high-toughness hard alloy is a plate-shaped crystal hard alloy and is uniform in organization structure, the hardness HV10 is larger than or equal to 1620, and the fracture toughness KiC is larger than or equal to 24 MPa.m < 1 / 2 >.

A fixing member that presses and fixes a cutting insert disposed on an insert mounting part of a tool body, the fixing member including: a fixing member body that has a pressing part for pressing the cutting insert; a fitting protrusion that is provided so as to protrude from a bottom part of the fixing member body, the fitting protrusion being fitted in a fitting hole formed in the tool body; and a coolant introduction flow path, a coolant discharge flow path and a coolant reservoir that guide a coolant delivered from a coolant branch flow path of the tool body to a discharge port formed in a leading end of the fixing member body so as to be discharged therefrom, wherein an inlet port of the coolant introduction flow path which communicates with an outlet port of the coolant branch flow path of the tool body is formed in an outer peripheral surface of the fitting protrusion.

The invention provides a preparation method of a wear-resistant and strength-coordinated hard alloy product. The method comprises the following steps: (1) hard phase pretreatment: mixing tungsten carbide powder with a yttrium-stabilized zirconia precursor solution; (2) nano coating modification: placing the mixed material in a planetary ball mill for ball milling to obtain yttrium-stabilized zirconium oxide coated tungsten carbide composite powder; (3) preparing a binding phase; (4) mixing and pressing; (5) performing gradient sintering to obtain a sintered body; and (6) the sintered body is placed in a vacuum furnace to be subjected to aftertreatment, and the wear-resistant and strength-coordinated hard alloy product is obtained. Through multi-dimensional innovation of material proportion innovation, process optimization and equipment improvement, the technical problems of traditional hard alloy in the aspects of hardness and toughness balance, high-temperature performance stability, production cost control and the like are successfully solved, and a hard alloy solution which is excellent in performance and economical and feasible is provided for the field of high-end equipment manufacturing.

The invention provides a cooling liquid follow-up adjustable fine boring cutter which comprises a cutter body, the cutter body comprises a connecting part and an assembling part, a liquid inlet is formed in the connecting part, an assembling hole is formed in the assembling part, an assembling part is slidably arranged in the assembling hole, a blade is installed at one end of the assembling part, and a cooling channel is formed in the assembling part; the two ends of the cooling channel are provided with a first connector and a liquid outlet, the first connector communicates with the movable cavity, and the liquid outlet corresponds to the blade. A movable cavity is communicated between the liquid inlet and the assembly hole, a cooling hose communicated with the liquid inlet and the first connector is arranged in the movable cavity, and an adjusting part for driving the assembly part to move is further arranged in the movable cavity; a movable cavity and a cooling channel are formed, a cooling hose is communicated with a liquid inlet and the cooling channel, cutting fluid can flow into the cooling channel through the cooling hose, meanwhile, the position of a liquid outlet is consistent with the position of a blade all the time, the cutting fluid continuously cools the blade and a workpiece, the machining precision and the tool durability are improved, cuttings are washed away in time, and the machining efficiency is improved. And the machined surface is prevented from being scratched due to chip accumulation.

The invention discloses a PCD (Poly Crystal Diamond) cutter and a layered welding process, and relates to the technical field of cutter welding, the laser welding process of the PCD cutter is essentially characterized in that brazing filler metal is heated by high heat energy of a high-energy laser beam, and the welding process is completed by attaching a PCD composite sheet. In order to avoid the problem that high heat energy of a high-energy laser beam causes graphitization on the PCD clad sheet, the whole welding tool is optimized, and the welding tool is essentially characterized in that firstly, the installation mode of the PCD clad sheet relative to a tool base body is changed, so that the heating process of the laser beam cannot directly affect the PCD clad sheet, only the hot melting temperature of a brazing filler metal layer is maintained, and the welding speed of the PCD clad sheet is increased; and on the basis, a rotating mode of the PCD composite sheet relative to the cutter base body is provided, so that the PCD composite sheet is fully attached to the cutter base body, the welding quality is analyzed according to an electrical sensing mode, and the key purpose is that the welding quality of the PCD cutter is improved by maintaining the attaching mode of the PCD composite sheet and the cutter base body.