3176 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 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 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.

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 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.

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 invention discloses a self-adaptive cutter system for brake disc machining. The self-adaptive cutter system comprises a cutter handle, a cutter disc, a cutting blade, a suspension sleeve, an electromagnet and a control system. The permanent magnet is embedded in the circular truncated cone section of the cutter handle, the suspension sleeve is circumferentially fixed to the cutter head through the flat key, the flat key is pasted with the strain gauge to detect cutting force in real time, and the electromagnet and the permanent magnet are oppositely arranged in the radial direction to form magnetic suspension supporting. And the control system adjusts the current of the electromagnet according to the strain signal, dynamically adjusts the radial rigidity and the suspension position of the cutterhead, and realizes axial-radial decoupling support in combination with the thrust bearing. In a preferable embodiment, the cutting blade realizes micron-order cutting depth adjustment through a piezoelectric ceramic driving gasket, the service life of the cutter is prolonged due to the alternative opening design of a cutter head mounting boss, and the problem of winding of a rotating lead is solved by a conductive slip ring assembly. Working conditions such as sand holes and hardness sudden change can be responded in real time, broadband vibration is restrained, the machining precision is improved, the service life of the cutter is prolonged, and the method is suitable for high-precision brake disc machining.

The invention discloses full-automatic cutter preparation equipment and a preparation method thereof, and relates to the field of cutter preparation, the full-automatic cutter preparation equipment comprises a working frame, a cutter handle storage box, a blade storage box and a plurality of assembling mechanisms used for connecting cutter handles and blades, and each assembling mechanism is composed of a mounting plate, a fixing cylinder, a wiping assembly and a clamping assembly; through grooves are symmetrically formed in the bottom of the outer wall of the fixing cylinder, the lower surface of the mounting plate is connected with the surface of the conveying belt, the length of the mounting plate is larger than the width of the conveying belt, and the upper surfaces of the supporting plates make contact with the two sides of the lower surface of the mounting plate. The wiping assembly is used for cleaning the outer wall of the entering knife handle and detecting whether the knife handle is bent or not, the clamping assembly is used for fixing the knife handle in the fixing cylinder, and the wiping assembly is connected with the clamping assembly. The problem of impurities on the surfaces of the cutter handle and the blade can be solved, accelerated abrasion of the cutter in the using process is avoided, and the sharpness and the service life of the cutter are guaranteed.

The utility model belongs to the field of automobile part machining and manufacturing, and particularly relates to a milling machine for automobile part machining and manufacturing, which comprises a main body supporting mechanism, an operation table, a movable clamping mechanism and a driving mechanism, the operation table is arranged above the supporting mechanism, the movable clamping mechanism is arranged above the operation table, and the driving mechanism is arranged above the movable clamping mechanism. The driving mechanism is arranged on the rear portion of the movable clamping mechanism, the rotary milling mechanism comprises a motor support, a driving motor, a gear box, a rotary machine head, a cutter handle, a taper-shank milling cutter and a stepping motor, the motor support is arranged outside the driving mechanism, the driving motor is used for driving, and the gear box is arranged on the gear box. The angle of the rotating machine head is adjusted through the stepping motor, parts can be machined from different angles, the problem of large part accumulative errors caused by multiple times of clamping and multiple times of positioning when the parts are replaced can be solved only by replacing cutters, and therefore the part precision is improved.

The invention discloses a B-axis power knife rest comprehensive performance test bench and method. The B-axis power knife rest comprehensive performance test bench comprises a base, a B-axis power knife rest, a simulation knife handle assembly, a knife rest mounting seat, an axial displacement table, a dynamometer assembly, an axial force loading assembly, a radial force loading assembly, a deformation measurement assembly, a temperature measurement assembly, a control system and a data acquisition system. The B-axis power tool rest is fixedly connected to the base through the tool rest installation base, the simulation tool handle is installed on the B-axis power tool rest, the axial displacement table is installed on the base, the power measuring assembly and the axial force loading assembly are coaxially combined and installed and then fixedly connected to an axial displacement table moving plate, and the radial force loading assembly and the deformation measuring assembly are installed on an axial displacement table fixing plate. The testing device is simple and compact in structure, large in loading force range and capable of supporting performance testing of B-axis power tool rests of various models, various stations and under multi-dimensional force loading; the test method is simple.

According to the vertical and horizontal five-axis linkage internal thread grinding machine and the using method, a stand column is fixed to the rear portion of a base, a longitudinal sliding plate is fixed to the front portion of the base, a transverse sliding plate is fixed to the longitudinal sliding plate, and a lower vertical and horizontal rotation driving device is fixed to the transverse sliding plate; the vertical-horizontal rotating body is provided with a tabletop main shaft perpendicular to the vertical-horizontal rotating body A vertical sliding plate is arranged in front of the stand column, a transposition mechanism is arranged in front of the vertical sliding plate, and a first cutter handle and a second cutter handle are correspondingly arranged at the upper left corner and the lower right corner of the transposition mechanism. A dressing grinding wheel which is obliquely arranged and can swing is arranged on the left side of the vertical sliding plate, and the swinging dressing grinding wheel corresponds to the position of the first cutter handle; box bodies are fixed to the two sides of the rear portion of the stand column respectively, a high-position left tool magazine is supported on the left box body, and a low-position right tool magazine is supported on the right box body. The switching time of the vertical mode and the horizontal mode is short, and the positioning precision is high; the grinding wheel swings and obliquely feeds, so that the dressing efficiency is high; the rigidity and the damping performance of the base, the box body and the stand column are improved, and therefore the machining precision can be improved.

The invention provides a cutter handle and a machine tool. The cutter handle comprises a main shaft connector, a cutter handle body, a vibration reduction assembly and a chip removal channel. The cutter handle body is connected with the main shaft connector, a first cavity and a second cavity are formed in the cutter handle body, and the second cavity is arranged around the first cavity; the vibration reduction assemblies are arranged in the first cavity and the second cavity correspondingly so as to be used for reducing vibration generated in the cutting process. The chip removal channel is arranged in the first cavity in the axial direction of the cutter handle body, the chip removal channel is at least partially connected with the vibration reduction assembly, a cutter clamping hole is formed in the end, away from the main shaft connector, of the cutter handle body, and the chip removal channel communicates with the cutter clamping hole; the diameter and the wall thickness of the cutter handle body are gradually increased in the direction from the cutter handle body to the main shaft connector. Through the integrated design of the vibration reduction assembly and the chip removal channel, the machining stability and efficiency are remarkably improved, and then the technical problems that when a traditional machine tool cutter handle conducts high-speed cutting, vibration control is poor, and the chip removal efficiency is low are solved.

The invention provides a tool for chamfering an upper surface and a lower surface separately, intelligent chamfering equipment and a chamfering method, and relates to the technical field of chamfering of welding cutting. The cutter comprises a floating cutter handle, a cutter bar, a rotating sleeve, an upper cutter holder, a lower cutter holder, an upper pressing wheel, a lower pressing wheel, an upper depended wheel and a lower depended wheel, the upper cutter holder is sleeved with an upper pressing disc, the bottom face of the upper pressing disc is detachably connected with the rotating sleeve, a plurality of upper blades extend out of the top face of the upper pressing disc, and the side face of the upper depended wheel is a first conical face. The small end of the first conical surface is the top surface of the upper leaning wheel; the lower blades extend out of the bottom face of the lower pressing disc, the side face of the lower depended wheel is a second conical face, and the small end of the second conical face is the bottom face of the lower depended wheel. The lower blades extend out of the bottom face of the lower pressing disc, the side face of the lower depended wheel is a second conical face, and the small end of the second conical face is the bottom face of the lower depended wheel.

The invention belongs to the technical field of internal thread machining, and particularly relates to an efficient internal thread grinding technology which comprises the following steps that the two ends of a multi-line grinding wheel structure are connected with a rotating main shaft on a machine body through HSK cutter handles; finishing the multi-line grinding wheel structure by utilizing a finishing roller shaft on the machine body; a workpiece is installed on a middle main shaft, and the middle of the multi-line grinding wheel structure penetrates through the interior of the workpiece; and the rotating main shaft and the middle main shaft are driven to rotate, and the rotating speed ratio of the rotating main shaft to the middle main shaft is adjusted according to the machining requirement of the internal thread of the workpiece. By arranging the multi-line grinding wheel structure, a multi-line grinding mode can be adopted, a plurality of threads can be ground on a workpiece at the same time, the grinding efficiency can be greatly improved, and mass production is facilitated. And secondly, abrasion of the grinding wheel can be relieved, and the machining cost is reduced.

The invention provides a diamond cutter welding machine, and belongs to the technical field of cutter welding equipment, the diamond cutter welding machine comprises a machining table and a mechanical arm, the machining table is connected with a lifting frame and a motor, the diamond cutter welding machine further comprises a knocking assembly, the knocking assembly is used for eliminating stress generated during cutter welding, and a positioning clamp is arranged in the knocking assembly; the pressing assembly is used for ensuring tight connection of the cutter; the welding tool has the beneficial effects that uniform pressure can be applied to the joint of the tool bit and the tool handle through the pressing assembly, so that the welding parts are tightly attached, the welding strength is improved, in addition, the tool bit is clamped through the knocking rod, the auxiliary positioning and supporting effects are achieved, and the welding quality is improved. And meanwhile, in the working process, the rotating shaft can drive the positioning clamp and the extrusion plate to synchronously rotate, so that the extrusion plate extrudes the ejector rod, the knocking rod can be driven to rapidly reset through the reset spring, knocking on the tool bit is achieved, the vibration effect is generated, and air holes are reduced.

A screwdriver includes a shank, a ratchet assembly, and a handle. The shank includes a shank extender that in an extended position lengthens the shank and in a retracted position is stored within the handle of the screwdriver. The ratchet assembly includes a knob and is configured to drive in the same direction the knob is turned. The screwdriver includes a locking mechanism to prevent unwanted movement of the shank between the extended and retracted positions. The handle of the screwdriver includes a storage space to hold alternative screwdriver bits and a stabilizing component to decrease movement of the handle when the storage portion is in an extended or open position. In a closed position the handle surrounds the alternate bits and in an open position the alternate bits are exposed.

The drill bit auxiliary assembling tool comprises a base, stand columns, a cross beam, a fixed plate, a movable plate, a lifting motor, a torque motor and a rotating assembly, the stand columns are arranged on the two sides of the upper portion of the base in the longitudinal direction, the cross beam is arranged at the top ends of the stand columns on the two sides in the transverse direction, and the fixed plate is arranged on the front side of the cross beam; the back of the movable plate is in up-down sliding connection with the sliding rail through a sliding block, the lifting motor is arranged at the top of the fixed plate and is in transmission connection with the nut through a lead screw, and the torque motor is arranged on the front side of the movable plate and is in transmission connection with the rotating assembly on the lower side of the torque motor. The lifting motor drives the torque motor and the rotating assembly to integrally lift, and the torque motor drives the rotating assembly to rotate, so that a drill bit and a cutter handle on the base are assembled, the labor intensity of workers is reduced, the assembling efficiency is improved, the tightening force of a nut can be accurately controlled, and the working efficiency is improved. Therefore, the assembly precision of the drill bit is ensured.

The utility model provides an anti-chip-sticking metal ceramic milling cutter. The anti-chip-sticking metal ceramic milling cutter comprises a connecting column, the knife handle is arranged in the connecting column; the tool bit is arranged at one end of the tool handle, a chip removal groove is formed in a chip cutting part of the tool bit, and the tool handle and the tool bit are made of metal ceramic materials. The threaded rod is rotated to drive the conical block to move upwards, so that the threaded rod is separated from the screw hole, at the moment, the trapezoidal block is reset through the spring, the fixing rod is separated from the inserting hole, and then the extending length of the tool bit can be adjusted; and meanwhile, the conical block moves downwards to extrude the trapezoidal block and the fixing rod to move and compress the spring, so that the fixing rod extends into the insertion hole, and the cutter handle is fixed through the threaded rod and the fixing rod, so that the effect of adjusting the overall length of the milling cutter according to use requirements is achieved, and the use flexibility, applicability and efficiency of the milling cutter are effectively improved.

The invention relates to the technical field of milling cutter heads, and discloses a milling machine powerful milling cutter head based on a wedge block fastening detachable structure, the milling machine powerful milling cutter head comprises a cutter handle, a clamping nut in threaded connection with the cutter handle, and a spring chuck for installing a milling cutter, a mounting seat is arranged in the clamping nut, a guide piece is arranged on the mounting seat, the guide piece comprises two sliding groove sets, each sliding groove set comprises a plurality of guide grooves, guide blocks are arranged in the guide grooves in a sliding mode, and the guide blocks are connected with the outer wall of the spring chuck. The milling machine powerful milling cutter head based on the wedge block fastening detachable structure can effectively solve the problems that in the prior art, in the clamping process of a spring chuck and a clamping nut, the requirements for experience and concentration of operators are high, inaccurate alignment is easily caused by improper manual operation, the installation efficiency is affected, and meanwhile, the installation cost is low. And the spring chuck and the clamping nut are shaken, so that the problem of unstable installation of the milling cutter is finally caused.

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.

A knife and associated guide for the cutting of fibrous batt insulation products, as well as rigid foam board insulation products are described. The knife has a handle and blade, each oriented so as to maximize the ability to pull the blade through the material to be cut, while minimizing the muscular effort and strain required of the user. The guide is configured to easily compress batt insulation products and to be easily moved over the products for improved efficiency.

The invention relates to a tool bit structure of grinding equipment and the grinding equipment for a mechanical arm, and relates to the technical field of grinding tools. The tool bit structure comprises a consumable fixing module and a clamping module. The consumable fixing module comprises consumables and a locking cutter handle, and the consumables are fixed to the locking cutter handle. The clamping module comprises a clamping shaft, a locking sleeve, a limiting bead and an elastic fixing piece, a fixing groove is formed in the end, facing the locking cutter handle, of the clamping shaft, the clamping shaft is at least partially sleeved with the locking sleeve, the limiting bead is arranged on the clamping shaft, and the elastic fixing piece can push the locking sleeve to move in the direction of the locking cutter handle. Wherein the locking knife handle is clamped in the fixing groove, a second limiting groove is formed in the locking knife handle, and when the locking sleeve moves towards the locking knife handle, the limiting bead can be partially pressed into the second limiting groove. According to the tool bit structure, rapid and automatic replacement of consumables can be achieved, and the replacement efficiency is improved to adapt to the automatic production process.

The invention provides an automatic wall thickness measuring device based on a milling path and a using method thereof.The automatic wall thickness measuring device based on the milling path comprises a mounting cutter handle which is hollow and detachably and fixedly connected with a machine tool spindle, and a probe is arranged at the end, away from the machine tool spindle, of the mounting cutter handle; the electromagnetic ultrasonic thickness measuring module is arranged in the mounting cutter handle and is electrically connected with the probe, the data storage module is arranged in the mounting cutter handle and is electrically connected with the electromagnetic ultrasonic thickness measuring module, and the first connecting module is arranged in the machine tool spindle and is electrically connected with the control center; the second connecting module is arranged on the mounting knife handle and electrically connected with the data storage module and the electromagnetic ultrasonic thickness measuring module, and the second connecting module is detachably and electrically connected with the first connecting module; the probe, the electromagnetic ultrasonic thickness measuring module and the data storage module are integrated in the mounting cutter handle, an external converter or a mechanical arm is not needed, the equipment structure is simplified, and the device can be conveniently and directly mounted on the machine tool spindle.

A spade drill bit includes a shank extending along an axis from a rear end to a front end, the rear end configured to be coupled to a tool holder of a power tool, a blade including a paddle extending along the axis with a front portion and rear portion coupled to the front end of the shank, and a tip coupled to the front portion of the paddle. First and second primary cutting edges are disposed on a front edge of the front portion of the paddle and extend radially outward from the tip. At least the rear portion of the paddle is composed of a first steel alloy. The primary cutting edges are composed of a second steel alloy that has a greater hardness than the first steel alloy.

The invention discloses a workpiece machining method and device, machine tool equipment and a storage medium, relates to the field of machine tool machining, and is applied to the machine tool equipment which is provided with a compound tool, and the compound tool comprises a tool handle and a tool bit which are sequentially connected. The method comprises the steps that the workpiece center position of a to-be-machined workpiece in machine tool equipment is obtained, and a first contour needing to be machined through the chamfering cutter and a second contour needing to be machined through the dovetail cutter in the to-be-machined workpiece are obtained; according to the center position of the workpiece and the first contour, a chamfering machining track of the compound tool is generated, and according to the center position of the workpiece and the second contour, a dovetail machining track of the compound tool is generated; and controlling a compound tool clamped on the machine tool equipment, and machining the workpiece to be machined according to a tool path formed by combining the chamfering machining path and the dovetail machining path. The problem that the workpiece machining efficiency is low is solved.

The utility model discloses a pair of pneumatic scissors, which comprises a scissor body and a pneumatic driving module, the cutter body comprises a first cutter body and a second cutter body which rotate relatively, the front ends of the first cutter body and the second cutter body are cutter heads, and the rear ends are cutter handles; chip stopping blocks are arranged on the outer side surfaces, far away from each other, of the first cutter body and the second cutter body; the pneumatic driving module comprises a mounting shell and a driving assembly; the cutter handle is located in the installation shell and matched with the driving assembly to conduct shearing work. The chip stopping block is located between the cutting edge and the driving assembly. Top openings are formed in the areas, close to the top, of the top end and the side surface of the mounting shell and used for exposing the area from the cutter body chip stopping block to the cutter head; the chip stopping block is located outside the installation shell and shields the top opening in the direction from the tool bit to the tool handle. And through the arrangement of the scrap stopping block, scraps are prevented from entering the driving assembly as much as possible, the possibility that the pneumatic driving module is damaged is reduced, and therefore the service life of the pneumatic driving module is prolonged, and faults and maintenance cost caused by the scraps are reduced.