5766 results about "Knife handles" patented technology

The invention provides a stirring friction machining device and a welding, material adding and energy control method. The stirring friction machining device comprises a spinning sleeve and a rotation driving assembly, a rotating spinning screw is installed in the spinning sleeve, the rotation driving assembly drives the spinning screw to rotate through a cutter handle, and a stirring component is arranged at the bottom end of the spinning screw; the outer side of the spinning sleeve is coated with an electromagnetic resistance composite coil with adjustable current and frequency, a feeding port and / or a shredding port are / is formed in the side wall of the spinning sleeve, and variable magnetic field intensity is excited through the electromagnetic resistance composite coil according to the electromagnetic induction principle; according to the invention, accurate adjustment of heat input of a tool is realized by adjusting current in a staying starting stage, the problem that a feeding channel is blocked by hardening of materials after short staying during material adding or welding is solved, and composite stirring of metal in a deposition edge area is realized by adjusting the magnitude and frequency of the current as a dominant electromagnetic force. And meanwhile, the temperature distribution characteristics of the acting area are locally adjusted, the interface bonding strength is improved, and the residual stress of the additive component is relieved.

An auto opening folding knife having a blade pivoted from a closed position to a spring urged release open locked position with a combined self-activating sliding auto release and locking arm. The sliding auto release and locking arm is mounted within the knife handle on dual fixed guide and pivot pins within respective arm openings being spring urged there against. Arm positional projections are engaged on a modified blade shank during operation moving the locking arm back and up then releasing to slide forward locking the blade in auto open use position until manual arm engagement by the user against the arm spring and blade spring for release and transitional closure.

A household knife with a finger ring includes: a knife body having a knife blade for cutting and a knife back arranged opposite the knife blade; a knife handle for holding, the knife handle being arranged on one side of the knife body; and a finger ring, which is arranged on one side of the knife body close to the knife handle, the finger ring having a finger hole for a finger to pass through. A minimum distance between the finger hole and the knife back is greater than or equal to a width of the knife handle part to be held by a hand. By arranging the finger ring on the knife body, the fingers can be effectively protected against cuts and fall, and a downward cutting direction of the knife blade is easily controlled, so the knife body is unlikely to deflect and roll over.

An out-the-front (OTF) knife comprises a handle, a blade, a support frame, and a double-action actuation mechanism. The handle comprises a blade channel, an axel channel, and an actuation mechanism channel. The actuation mechanism includes actuation springs. The actuation mechanism is configured in the actuation mechanism channel so that the actuation springs facilitates the deployment and retraction of the blade. A user manipulates a toggle switch which initiates the actuation mechanism. The handle further comprises a double locking securement system with a set of back locks and a set of front locks.

The invention discloses a rapid tool changing device and a tool changing method of a metal cutting machine tool, and relates to the field of machine tools, the rapid tool changing device comprises a tool shaft seat, a tool body and a tool magazine, the tool shaft seat is provided with a U-shaped shaft cavity penetrating through the bottom surface, the top of the tool body is provided with a square tool handle, and the square tool handle is clamped into the shaft cavity in a matched mode to enable a tool to be axially aligned with the tool shaft seat; positioning grooves are formed in the two sides of the cubic cutter handle, positioning pieces are symmetrically arranged on the two sides of the shaft cavity, the positioning pieces are radially and elastically clamped into the positioning grooves through springs to fix the cubic cutter handle, and an extrusion piece axially and elastically slides in the cutter shaft seat and abuts against the positioning pieces to be clamped with the positioning grooves; the tool body and the tool shaft seat are combined in a lateral insertion mode, the tool body is fixed through elastic clamping connection of the positioning piece and the positioning groove and expansion limiting of the extrusion piece on the positioning piece, the tool shaft seat is directly moved to penetrate through the magazine opening in a reciprocating mode when the tool is replaced, the tool body is rapidly placed and taken down, and the tool replacing speed is high.

A fixed blade knife includes a handle having an inner surface. A blade has a tang that extends at least partially along the inner surface of the handle. A bolster extends along at least a portion of the tang and releasably connects to the handle.

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 turning toolholder includes a shank, a club head, and a clamp and a clamp screw for clamping a cutting insert. The club head includes a clamp coolant supply hole in fluid communication, a flank coolant supply hole and an auxiliary rake coolant supply hole, all in fluid communication with the main coolant supply hole. Coolant is supplied through a rake coolant exit opening formed in the forward nose portion of the clamp to direct coolant to the top rake surface of the cutting insert, and coolant is supplied through a flank coolant exit opening located below the insert-receiving pocket to provide coolant to the side flank surfaces of the cutting insert. In addition, an auxiliary rake coolant supply housing formed on a top surface of the club head supplies additional coolant to the top rake surface of the cutting insert during high heat applications.

The assisted opening knife uses hardened handle inserts to reinforce the knife handles to prevent deformation and damage to the handles due to the blade impacting stop pins upon opening. The knife includes a blade pivotally connected between left and right handle members for rotational movement between open and closed positions. The handle inserts are mounted to the handle members and are seated within a recessed area formed on the interior face of the handle members. The handle inserts securely supporting the stop pins, which seat in holes formed in the handle inserts. Due to the hardened material, the handle inserts prevent deformation and damage to the softer handle members from impact of the blade against the stop pins.

The invention relates to the technical field of milling cutters, in particular to a multi-tooth micro-blade milling cutter and a manufacturing method and application thereof. The multi-tooth micro-blade milling cutter comprises a cutter handle and a cutter head body, wherein the cutter head body is fixedly connected to one end of the cutter handle; the multiple cutter teeth are arranged on the outer side face of the cutter head body, and each cutter tooth extends to the tail end, close to the cutter handle, of the cutter head body from the top end, away from the cutter handle, of the cutter head body; each cutter tooth comprises a front cutter face, a rear cutter face and a cutting edge, the cutting edge is provided with a plurality of continuously-distributed micron-sized protruding micro-blades, the micro-blades form an arc-shaped sawtooth structure, the micro-blades extend to the front cutter faces and form micro grooves in the front cutter faces, the micro-blades extend to the front cutter faces and form micro grooves in the front cutter faces, and the micro-blades extend to the rear cutter faces and form micro grooves in the front cutter faces. The multi-tooth micro-blade milling cutter has the structure of the front angle of the front cutter face of the milling cutter tooth and the rear angle of the rear cutter face of the milling cutter tooth, the linear cutting blade of the traditional cutter tooth is dispersed into micro blades, the stress concentration of the cutter is reduced, a plurality of convex micro blades are in grinding motion on the machining face in the milling process, and the milling and grinding combined machining effect is formed. Unification of machining efficiency and machining precision is achieved.

The utility model relates to a cervical conization knife, and belongs to the field of gynecological operation instruments. Comprising a knife handle and a detachable blade. And the front end 2 of the knife handle tilts and forms an angle with the longitudinal axis of the handheld end 1 of the knife handle. According to different angles between the longitudinal axis of the front end 2 of the scalpel handle and the longitudinal axis of the handheld end 1 of the scalpel handle, the scalpel is divided into three models of A, B and C which are respectively at angles of 27 degrees, 31 degrees and 37 degrees. The cross section of the blade body is arc-shaped, the radian is consistent with that of the cervix uteri, the arc length is 1 / 8 of the circumference of the cervix uteri, namely 1cm, the two sides of the blade are both blade faces 3, the front ends of the blade faces 3 converge to enable the blade tip 4 to be an arc-shaped triangle, the rear end 5 of the blade is a parallel blunt face, and the longitudinal axis of the blade is provided with scales 6. Compared with a traditional cold knife, the novel cervical cold knife can be applied to gynecology cervical cold knife conization, surgical operation is facilitated, a cut cone can be regular, cervical injury is reduced, and the shape and the function of the cervix are reserved to the maximum extent.

A shaving razor system having a shaving razor handle that includes a proximal end, a distal end, an upper surface extending between the proximal end and the distal end. The upper surface having a generally convex profile. The shaving razor handle has a lower surface extending between the proximal end and the distal end, the lower surface has a generally concave profile. A shaving razor cartridge releasably is mounted to the proximal end of the shaving razor handle. A cartridge ejection button is positioned on the lower surface towards the proximal end.

The present invention provides a folding knife containing a blade replacement structure, including a handle body (1), a blade holder (2), a blade (3), and a connection pin (4). The blade holder (2) includes a first clamp plate (21), a second clamp plate (22), a spacer (23), and an elastic member (221). The first clamp plate (21), the second clamp plate (22), and the spacer (23) together enclose an embedding slot that allows the blade to be inserted. When the folding knife is completely opened, a first slot (31) on the blade (3) fits with a first locking protrusion (231) on the spacer (23), and a second slot (32) on the blade (3) fits with a second locking protrusion on the elastic member (221). The blade holder (2) and the blade (3) can rotate around the connection pin (4) to be accommodated in the handle body (1).

The invention discloses a milling process vibration state monitoring method and system for a machine tool milling cutter, and belongs to the technical field of intelligent monitoring. The method comprises the following steps: acquiring a vibration signal of a milling cutter under a reference processing condition, and establishing a reference template containing normal vibration characteristics; dynamically adjusting an alarm threshold value, and starting fault diagnosis analysis; performing envelope spectrum analysis on the vibration signal triggering diagnosis; preliminarily judging the affiliation fault type of the abnormal vibration through a preset fault classification model; and carrying out association verification by combining the attribution fault type and the spatial position information when the abnormality occurs, confirming the root cause of the fault, and outputting a targeted classification alarm instruction. According to the invention, the cutter handle single sensor is linked with phase slicing and dynamic threshold and coordinate verification, so that the faults of the cutter, the cutter rest and the workpiece are accurately distinguished and directionally alarmed, and the problems that a fault source cannot be distinguished by a single channel and the false alarm rate is high in the prior art are solved.

The invention discloses a tool wear real-time prediction method fusing wear and jumping mechanism-three-dimensional vibration data, and belongs to the field of machine tool state monitoring and intelligent manufacturing. According to the method, a three-dimensional acceleration sensor is arranged near a main shaft or a cutter handle, three-dimensional vibration signals in the machining process are obtained, and a cutting force mechanism model is established in combination with cutting parameters and geometric features of the cutter; and tool wear correction and bounce disturbance items are introduced into the mechanism model, and prediction calculation of the three-way cutting force is carried out. And then, a cutting force prediction result and vibration signal features are fused, a comprehensive feature vector is constructed, and real-time prediction of the tool abrasion loss is realized based on a deep learning regression model. According to the method, physical rule constraints of mechanism modeling and data driving advantages of vibration signals are fully utilized, the accuracy and real-time performance of tool wear prediction are effectively improved, and important engineering application value is provided for improving the machining quality, prolonging the service life of a tool and achieving intelligent production.

The invention belongs to the technical field of friction stir welding, and particularly relates to a device and method for friction stir welding of a longitudinal joint of a cylinder section. The device comprises a base table, a first base and a second base which are sequentially arranged in the same direction, and the base table is connected with the first base through an X-axis transmission assembly; the first base and the second base are connected through a Y-axis transmission assembly. A main shaft frame is installed on the side, back on to the first base, of the second base and connected with a main shaft through a Z-axis transmission assembly. The end part of the main shaft is provided with a main shaft hole and a cutter handle mounted in the main shaft hole; the cutter handle is used for mounting a cutter or a friction stir welding tool; the driving mechanism can drive the X-axis transmission assembly to drive the first base to move in the X-axis direction, drive the Y-axis transmission assembly to drive the second base to move in the Y-axis direction, drive the Z-axis transmission assembly to drive the main shaft to move in the Z-axis direction and drive the main shaft to rotate. The scheme is simple in structure, the cost can be effectively reduced, and the welding effect is improved.

The invention relates to the technical field of implant processing, and discloses a processing device and method for efficiently producing implants.The processing device for efficiently producing the implants.The processing device for efficiently producing the implantscomprises a base, driving mechanisms are arranged on the front side and the rear side of the top of the base correspondingly, and a transmission mechanism and a lifting mechanism are arranged on the top of each driving mechanism; the top end of the lifting mechanism is connected with tool handles, a turning tool and a milling tool are arranged in the two tool handles respectively, the transmission mechanism comprises a driving plate, a sealing box, a sealing plate and a piston plate, a push plate is fixedly installed between the driving plate and the sealing plate, and the sealing plate and the piston plate are installed in the sealing box in a sliding and sealing mode. The design is reasonable, dynamic self-adaptive adjustment of clamping force is achieved through linkage of centrifugal force and a hydraulic system, when the rotary drum rotates at a high speed, the balance weight plate moves outwards under the centrifugal effect, hydraulic oil is pushed to enter the sliding groove, the pressure on the sliding plate is increased, and therefore the fastening force of the clamping plate on raw materials is automatically increased.

A locking structure of folding knife based on an elastic locking plate comprises a knife handle and a blade. The knife handle is provided with an accommodating groove and a locking structure; the locking structure comprises a pivot, an elastic locking plate and an unlocking button. The blade is connected to the pivot, and a guide groove is defined on the pivot; A front end of the elastic locking plate is arranged in the guide groove; the elastic locking plate is provided with a locking part, and the blade is provided with a locking groove; the unlocking button is arranged on the pivot, the unlocking button abuts against one side of the locking plate, and the pivot is provided with an elastic resetting member.

The invention discloses a multi-channel numerical control grinding machine tool for machining an outer spherical surface structure of a ball head, and relates to a grinding system for machining an outer spherical surface of a medical thighbone ball head. The multi-channel numerical control grinding machine tool is high in machining precision and production efficiency. The multi-channel numerical control grinding machine tool comprises a composite workbench and a linear servo driving module, wherein a workpiece servo main shaft module is arranged on the composite workbench; a grinding servo main shaft module is arranged on the linear servo driving module; the composite workbench comprises a vertical servo rotating shaft, and a workpiece servo feeding sliding table is arranged on the vertical servo rotating shaft. The workpiece servo main shaft module comprises a workpiece inner positioning and clamping fixture; an automatic online detection module is arranged on one side of the workpiece servo main shaft module; a linear servo sliding table is arranged on the linear servo driving module, and power of the linear servo sliding table is provided by a linear motor; a grinding floating cutter handle is installed on the grinding servo main shaft, and a cutter assembly is installed on the grinding floating cutter handle.

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 discloses a B-axis power knife rest simulation loading test bench which comprises a B-axis power knife rest, an up-down radial force loading module, a left-right radial force loading module, an axial force loading module, an axial torque loading module, a rotary loading module, a combined knife handle and horizon iron. The B-axis power tool rest and the rotary loading module are both arranged on the horizontal iron; the up-down radial force loading module, the left-right radial force loading module, the axial force loading module and the axial torque loading module are all arranged on the rotary loading module; one end of the combined knife handle is connected with an electric main shaft of the B-axis power knife rest, and the other end of the combined knife handle is connected with the torque loading module. Through cooperation of the up-down radial force loading module, the left-right radial force loading module, the axial force loading module, the axial torque loading module and the rotary loading module, comprehensive simulation dynamic loading of the radial force, the axial force and the reverse torque of the main shaft can be realized, so that the test period can be shortened, and the test cost can be reduced.

A new type of folding knife includes a handle, a spacer on the inner side of the handle, a flexible backbone on the inner side of the spacer, a blade rotationally connected to the flexible backbone, and a lock clasp. The spacer includes a lock aperture that receives the lock clasp. The lock clasp goes through the lock aperture and slides between locking and unlocking positions in the lock aperture. A lock groove in the blade receives the lock clasp. When in use, the handle is rotated to allow the lock clasp to move under its own weight out of the lock groove in the blade, which allows the blade to open. The handle is rotated again to engage the lock clasp with the lock groove to lock the blade. The folding knife is convenient to use, provides good security, and the overall structure is simpler and easier to assemble.

The tool dust removal structure comprises a positioning piece and a plurality of nozzles, the positioning piece is of an annular structure and is detachably and fixedly arranged at the end, facing a workpiece, of a main shaft and arranged on the periphery of a tool, the multiple nozzles are detachably and fixedly arranged on the positioning piece, the opening end of each nozzle extends towards the tool, and the other end of each nozzle communicates with a ventilation pipeline. The positioning piece and the nozzle are arranged at the end, where the tool is clamped, of the main shaft, foreign matter on the tool handle, matched with the main shaft, of the tool can be automatically removed before the tool is clamped, vibration or position deviation caused by the foreign matter in the rotary cutting process of the tool is avoided or reduced, and then the machining precision of the tool is improved in an auxiliary mode; foreign matters on the cutter body can be cleaned before cutting, the nozzle is communicated with the cooling pipeline, and cooling liquid can be sprayed towards the cutter body during cutting, so that heat dissipation during cutting is accelerated, sweeps are prevented from splashing towards the main shaft, the machining life of the cutter is prolonged, abrasion of the end of the main shaft is relieved, and then the machining precision is improved.

The present disclosure is in the technical field of folding knives, and particularly relates to a rail-type out-the-front folding knife and a using method thereof. In the present disclosure, the sliding fit between the sliding block and the professional sliding parts of the rail replaces the traditional sliding fit between the knife edge and the knife handle to avoid the friction between the knife edge and the knife handle, making the knife more stable and durable. The sliding block and the rail as components can be replaced and renewed quickly after being worn, making the maintenance more convenient.

The invention provides an endoscope anastomat stroke compensation method which can be applied to the technical field of medical instruments. A deflection system of the endoscope anastomat comprises a first stroke sensor, a percussion system of the endoscope anastomat comprises a second stroke sensor, and the method comprises the steps that the first stroke sensor is used for detecting the bending angle of a flexible knife handle in a bending joint in the cutting process; based on the bending angle, the change of the length of the flexible knife handle in the bending joint is calculated, and the forward moving amount of the cutting knife is obtained; a second stroke sensor is used for detecting the current stroke of a driving device at the rear end of the anastomat; and based on the cutting knife forward movement amount and the preset stroke of the anastomat rear-end driving device, the current stroke of the anastomat rear-end driving device is adjusted so as to compensate the stroke of the endoscope anastomat. By arranging the stroke sensor, measuring the forward moving amount of the cutting knife and the current stroke of the driving device at the rear end of the anastomat, and compensating the stroke of the endoscope anastomat, the anastomosis length of the anastomat at various bending angles is stable and consistent, the anastomosis frequency is reduced, and the use cost is reduced.

The invention relates to the technical field of machining, and particularly discloses a combined cutter which comprises a cutter handle, a center drill and end face milling cutters, the center drill is installed in the center of the cutter handle, and the end face milling cutters are distributed around the center drill and installed in a receding groove. The calibration device comprises a mounting base and a measuring mechanism, the measuring mechanism is provided with a clamping assembly, a positioning assembly and a calibration assembly, the combined tool is positioned and clamped, and calibration is carried out through a center hole standard block, a height conversion plate, a guide mechanism and a calibrator. Meanwhile, an end face calibration cushion block is further arranged and used for determining a scraping and milling plane of the combined cutter. The calibration method comprises the steps that the combined tool is placed in the positioning block and pressed tightly, the center drill makes contact with the center hole standard block to drive the height conversion plate to slide, the calibration instrument is used for measuring the moving distance and adjusting the installation position of the center drill, and the center drill is fixed to complete calibration. The combined tool and the calibration device and method have the advantages of being simple in structure, accurate in calibration, convenient to operate and the like, and are suitable for calibration of combined tools of various models.

The utility model discloses a fruit and vegetable self-adaptation peeling device and a peeling forming end cutting device, the fruit and vegetable self-adaptation peeling device comprises a first support, a peeling mechanism arranged on the first support and a profiling peeling driving mechanism used for driving the peeling mechanism to conduct profiling motion, the peeling mechanism comprises a peeling knife, a first peeling angle adjusting mechanism used for driving the peeling knife to rotate around the Z axis and a second peeling angle adjusting mechanism used for driving the peeling knife to rotate around the Y axis. The paring knife comprises a knife handle and a blade installed on the knife handle. According to the fruit and vegetable self-adaptive peeling device, the inclination angle of the peeling knife can be adjusted, and therefore the fruit and vegetable self-adaptive peeling device is suitable for conducting profiling peeling on fruits and vegetables of different shapes and sizes.

A bit or tool holder attachment including: a main body, having a connecting body mounted on electric drill or electric driver or power tool or manual tool, and a string and a cable retracting device are arranged in the main body, and one end of the string is fixed on a fixing body; and at least one bit or tool holder, having a movable body and a fixing ring, an attaching hole is arranged in middle of the fixing ring for a bit or tool to pass through and be attached in the fixing ring, and a ring-shaped recess is also arranged on outer surface of the fixing ring, and the movable body is sleeved on the ring-shaped recess, and one end of the movable body is connected with the fixing body, so that the bit or tool holder can be extended and retracted relative to the main body.

A robot wire-filling friction stir welding and solid-phase additive manufacturing device, comprising: a robot (1), a robot friction stir welding main shaft (4) arranged on the robot (1), a main-shaft control device (2), an industrial control computer (3), a robot control device (5), a welding worktable (6) and a push-pull wire feeder (7), wherein the robot friction stir welding main shaft (4) comprises a stir welding main shaft (8), an adapter sleeve (9), a cutting tool shank (10), a locking fixing sleeve (13) and a stirring head, there being two types of stirring head: a wire-filling welding stirring head and a wire-filling additive stirring head. On the basis of a heavy-duty robot, the device drives the friction stir welding main shaft to perform a welding motion, and a spiral milling cutter (11-3) of the stirring head crushes and granulates a wire fed in by the push-pull wire feeder (7), and granular wires are conveyed to a welding region / additive region by means of a material guide thread on a stirring pin, thus realizing robot wire-filling friction stir welding and robot wire-filling solid-phase additive manufacturing, and solving the problems of solid-phase friction stir welding for the connection of small-batch and multi-variety lightweight alloy welding members and high-efficiency additive manufacturing of large-sized lightweight alloy structural members in the aerospace industry.

The invention provides an inner-cooling milling cutter which comprises a cutter handle, a cutting section, an inner-cooling hole and a side edge water outlet hole, the cutting section is connected with the cutter handle, the inner-cooling hole extends from one end, away from the cutting section, of the cutter handle to the interior of the cutter handle and extends into the cutting section, and the side edge water outlet hole is connected with the inner-cooling hole. The cutting section is provided with an axial end far away from the cutter handle, the end, located in the cutting section, of the inner cooling hole is not communicated with the axial end of the cutting section, the side blade water outlet hole is formed in the cutting section, one end of the side blade water outlet hole is communicated with the inner cooling hole, and the other end of the side blade water outlet hole is communicated with the cutter handle. And water can be discharged from the other end of the side blade water outlet hole in the direction of the cutter handle. According to the invention, the cooling liquid can be reversely discharged, so that the cutting edge part of the whole cutter participating in cutting can be fully cooled, the service life of the milling cutter is prolonged, and the production cost is reduced.