3172results about "Milling cutters" patented technology

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.

A milling tool includes a first cutting portion having a first and a second cutting edge extending at the periphery of the first cutting portion along, or following a helical path around, a longitudinal axis of the milling tool. The first and second cutting edges are arranged such that, when the milling tool is rotated around its longitudinal axis, they form respective first and second lines of intersection in a central plane containing the longitudinal axis, wherein the first and the second lines of intersection are arcuate. The extension of the first cutting edge is different from the extension of the second cutting edge such that the first line of intersection is different from the second line of intersection.

The invention relates to a milling burr (1) for an electrically or pneumatically operated hand-held tool for deburring, shaping, grinding and finishing iron-free surfaces, comprising: - a shank portion (2) and - a milling portion (4) made of a hard metal, in particular tungsten carbide, which adjoins the shank portion (2) and ends in a milling tip (6), wherein the milling portion (4) has a milling length (f) and a plurality of cutting edges (10) which are separated by mutually spaced main flutes (14) which have a main flute depth (h) and extend helically in a first twist direction (16) with a first twist angle (α) along the milling length (f), wherein each of the cutting edges (10) has a rake face (20) and a relief face (24) and a cutting edge (12) at the transition of rake face (20) and relief face (24), forming a rake angle (γ) and a relief angle (δ). The milling burr (1) according to the invention is characterized in that said relief face (24) is a first relief face (24) and said relief angle (δ) is a first relief angle (δ), wherein the first relief face (24) is adjoined in the circumferential direction of the milling portion (4) by a second relief face (26) which extends at a second relief angle (ε), and, in the region of the milling portion (4) with the largest diameter, the first relief angle (δ) is in the range from 6° to 20° and the second relief angle (ε) is in the range from 8° to 30°, and the second relief angle (ε) is greater than the first relief angle (δ). The invention also relates to the use of such a milling burr (1).

The utility model relates to the field of planer type milling machines, in particular to a planer type milling machine capable of quickly changing a cutter, a main shaft box is arranged on a planer type milling machine body, a driving shaft is rotatably arranged at the bottom of the main shaft box, a detachable mounting sleeve is mounted on the driving shaft, and a milling cutter assembly is mounted at the bottom of the mounting sleeve; a plurality of mounting parts used for clamping the mounting sleeves are movably arranged at the bottom of the driving shaft, mounting cavities corresponding to the mounting parts are formed in the mounting sleeves in a matched mode, and mounting sleeves are rotatably arranged on the outer sides of the mounting sleeves. According to the planer type milling machine, the installation sleeve can be assembled on the driving shaft through adaptive clamping between the installation piece and the installation cavity, the assembling mode is rapid and convenient, no external auxiliary tool needs to be used, a user can rapidly replace the milling cutter assembly on the planer type milling machine body, and the planer type milling machine can be conveniently used by the user.

The embodiment of the utility model discloses a deep hole machining combined tool in the technical field of hole machining drilling tools. When a deep hole is machined, the distance between the milling cutter blade and the chamfering cutter blade is adjusted according to the depth of the hole needing to be machined, the position of the chamfering cutter limiting block can be directly adjusted through the arrangement of the scale marks, a measuring tape does not need to be additionally used for measurement, and firstly, the milling cutter blade is fixed to a groove cavity of a first clamping groove through cooperation of a first bolt and a first threaded hole; then a second bolt is matched with a third threaded hole to fix a chamfering blade in a groove cavity of a second clamping groove, then a positioning sliding block is placed in a groove cavity of a first chip removal groove, and after size adjustment is completed, the third bolt is placed in a hole cavity of a first limiting hole and a hole cavity of a second limiting hole, so that the third bolt is screwed into a hole cavity of the second threaded hole; and the position of the positioning sliding block is fixed, so that the chamfer is machined while the deep hole is machined.

The invention discloses an energy storage battery pole milling device and relates to the technical field of energy storage battery pole milling. The energy storage battery pole milling device comprises a bottom plate, supporting columns are fixed to the four edges of the top face of the bottom plate, an operation plate is fixed to the top faces of the four supporting columns, two sliding grooves are formed in the top face of the operation plate, and a square opening is formed in the left side of the top face of the operation plate; a U-shaped frame is fixed to the top face of the operation plate, a driving module is fixed to the top face of the U-shaped frame, a cutting disc is fixedly installed on the bottom face of a rotating shaft of the driving module, two T-shaped rings are fixed to the top face of the operation plate, clamping assemblies are arranged on the inner walls of the two T-shaped rings, and each clamping assembly comprises a screw. The energy storage battery pole is tightly clamped by the rubber block to move rightwards, so that the problem that the surface of the energy storage battery pole is damaged by milling of equipment due to shaking of the energy storage battery pole is solved.

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 disclosure relates to a cutting tool system comprising a tool holder and a cutting tool. The tool holder includes a base for mounting onto a rotary drum or disc and a body for removably coupling to the cutting tool. The cutting tool is for size-reducing a material and has a first side and a second side. The cutting tool includes a plurality of cutting edges that are selectively moveable into and out of a cutting path of the rotary drum or disc. The first and second sides each have at least one cutting edge, such that each of the first and second sides are configured to be a leading side of the cutting tool during use. This allows the cutting tool to be rotated and / or reversed, such that a single cutting tool provides several cutting edges and increases the wear or erosion life thereof.

In a processing machine, a machine body drives at least one of a workpiece and a tool to process the workpiece by the tool. A processing chamber isolates the workpiece, the tool, and a nozzle from at least part of the machine body while housing the workpiece, the tool, and the nozzle. An internal temperature sensor measures a temperature of an atmosphere in the processing chamber. An external temperature sensor measures a temperature of an atmosphere around the processing machine. A temperature adjustment part raises a temperature of the processing fluid to be supplied to the nozzle when a measured temperature of the internal temperature sensor is lower than a measured temperature of the external temperature sensor, and / or the temperature adjustment part lowers the temperature of the processing fluid to be supplied to the nozzle when the measured temperature of the internal temperature sensor is higher than the measured temperature of the external temperature sensor.

The disclosure relates to a milling tool for wood or wood-like materials, as well as a method for producing such a milling tool. A longitudinal direction, a radial direction and a rotational direction are specified by an axis of rotation of the milling tool. The milling tool includes a base body as well as at least one blade which adjoins a rake face pointing forward in the rotational direction and a flank face pointing outward in the radial direction. The blade and the rake face run in a curved manner in the longitudinal direction. The curved blade and the curved rake face are formed on a cutting plate formed separately from the base body. The cutting plate is fastened to and in particular soldered on with its flat inner surface on a flat support surface of the base body.

The invention discloses a milling cutter for processing a ceramic matrix composite material, a cutting edge comprises a wave-shaped cutting edge and a tooth-shaped cutting edge, the wave-shaped cutting edge and the tooth-shaped cutting edge are positioned on different edge sections and are alternately arranged, the waveform of the wave-shaped cutting edge is a sine curve waveform, and the sine curve waveform is periodically arranged along the axial direction of the milling cutter; chip separating grooves are periodically formed in the tooth-shaped cutting edge in the axial direction of the milling cutter at intervals, and the chip separating grooves correspond to wave crests and wave troughs of the sine curve waveform. The wave-shaped cutting edge is in a sine curve wave shape, so that the length of the cutting edge is increased, the load in unit length is reduced, the machining cutting force is effectively reduced, heat dissipation is accelerated, vibration and deformation are reduced, the tooth-shaped cutting edge is divided by the chip dividing grooves of the tooth-shaped cutting edge, and chip removal and heat dissipation are facilitated while cutting force distribution is optimized; and in the machining process, discontinuous parts are cut through the tooth-shaped cutting edges, machining is conducted through the wave crests or the wave troughs of the wave-shaped cutting edges, and the cutting service life of the cutter is long.

The invention belongs to the technical field of gear machining, and discloses a gear milling blade and a disc-shaped milling cutter. The gear milling blade is installed on the end faces of the two sides of a milling cutter disc and comprises a top edge, a side edge and an auxiliary edge, and the top edge is arranged between the side edge and the auxiliary edge. The outer contour line of the top edge protrudes towards the workpiece to be machined, the outer contour line of the top edge comprises a top edge arc line and a Bezier curve, one end of the top edge arc line is connected with the outer contour line of the side edge, and the other end of the top edge arc line is an end point E; one end of the Bezier curve is connected with the end point E and is tangent to the end point E, and the other end of the Bezier curve is connected with the outer contour line of the auxiliary blade. The gear milling blade has the outline shape of a Bezier curve, and can effectively improve curvature distribution on a tooth root transition curve, increase the curvature radius of the tooth root transition curve and reduce tooth root stress when cutting a tooth groove, so that the tooth root strength of an involute gear is improved.

The invention discloses grinding equipment and a grinding method for metal cutting milling cutter machining, and relates to the technical field of grinding machine tools. The grinding equipment for metal cutting milling cutter machining comprises a grinding machine base, a spindle box is fixedly connected to the top of the grinding machine base, a chuck is movably connected to the right side of the spindle box, and a movable seat is movably connected to the position, located on the right side of the spindle box, of the top of the grinding machine base. According to the grinding equipment and the grinding method for metal cutting milling cutter machining, an air supply motor drives a spiral plate to rotate, so that the spiral plate continuously feeds external air into a splash guard through an air supply pipe, and air flow is formed to be blown to a diamond grinding wheel; and cooling liquid on the surface of the diamond grinding wheel and loose abrasive particles and chippings on the surface can be blown to the right side to be away from the surface of the diamond grinding wheel, so that the to-be-ground surface of the diamond grinding wheel is kept clean, the abrasive particles and chippings are prevented from participating in grinding to influence the surface quality of the milling cutter, and the machining efficiency is improved.

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.

The invention belongs to the technical field of gear machining, and discloses a gear milling blade and a disc-shaped milling cutter. The tooth milling blade comprises a side edge, a top edge and an auxiliary edge, wherein the top edge is arranged between the side edge and the auxiliary edge; the outer contour line of the top edge protrudes towards the workpiece to be machined, the outer contour line of the top edge comprises a top edge arc line and an oval arc line, one end of the top edge arc line is connected with the outer contour line of the side edge, and the other end of the top edge arc line is an end point E; one end of the elliptic arc line is connected with the end point E and is tangent to the end point E, and the other end of the elliptic arc line is connected with the outer contour line of the auxiliary blade. The tooth milling blade is provided with an elliptical profile curve, so that the curvature distribution on a tooth root transition curve can be effectively improved, the curvature radius of the tooth root transition curve is increased and the tooth root stress is reduced when a tooth groove is cut, and thus the tooth root strength of an involute gear is improved; and meanwhile, the elliptic arc line and the top edge arc line are connected and tangent at the end point E, so that the outer contour line of the top edge is ensured to be smooth.

The purpose of the present invention is to precisely process a surface-shaped portion having a fillet. An end mill includes a bottom blade having a protruding curved surface and formed in an arc shape, and a radius blade provided in a corner portion and formed in an arc shape, wherein the radius of the arc portion of the radius blade matches the radius of the arc portion of a fillet-shaped portion of a shape to be processed, and the radius of the arc portion of the bottom blade is equal to or smaller than the minimum radius of the arc portion of a surface-shaped portion adjacent to the fillet-shaped portion.

The purpose of the present invention is to perform machining on a double-curved surface to have good finished surface characteristics while achieving high speed feeding. An end mill (2) is provided with a bottom blade (2A) formed in a curved convex and circular arc shape, and a radius blade (2B) located at the edge and formed in a circular arc shape. The bottom blade (2A) has a region where a blade part is not formed on the axis of the end mill (2), and the end mill (2) is further provided with a center blade (2C) in the region of the bottom blade (2A). The center blade (2C) is formed in a circular arc shape with a radius smaller than that of the circular arc part of the bottom blade (2A).

The invention discloses a diamond cutter for forming a concave spherical surface microstructure, and relates to the technical field of machining of micro concave spherical surfaces in ultra-precision milling. The invention aims to solve the problems that a small-size spherical structure is difficult to process, the processing quality is difficult to guarantee, the size of a spherical curved surface is difficult to control, the surface contour quality of the curved surface is difficult to guarantee and the like in the milling process. According to the technical scheme, the shape of the diamond cutter in the manufacturing process is strictly controlled so that the cutter meeting the use requirement can be obtained. The laser cutting machine is used for preliminarily machining the contour of the cutter, small-size high-precision cutting can be achieved through laser cutting, the cutting efficiency is high, and the contour forming quality is good. And the diamond polishing liquid is used for polishing the cutting surface, and the roughness of the cutting surface is reduced. And fine grinding is carried out on the diamond relief angle, so that the tool is not interfered and influenced in the using process. The machining process of the cutting edge is divided into rough grinding and accurate grinding, rapid forming is achieved through rough grinding, sufficient allowance is reserved for accurate grinding of the cutting edge, and the contour precision and the shape quality of the cutting edge are extremely high through accurate grinding. After the diamond tool bit is preliminarily machined, the diamond tool bit and the hard alloy tool handle are welded together in a vacuum welding machine through brazing, then the cutting edge is machined, and it is guaranteed that the rotation center of the cutting edge is highly coaxial with the axis of the tool bar.

The utility model discloses a milling cutter convenient to replace, which relates to the technical field of milling cutters, and comprises a milling cutter body and a positioning mechanism, the positioning mechanism comprises a lifting sleeve sleeved on the outer wall of a mounting seat, the bottom of the inner wall of the lifting sleeve is provided with an extrusion circular truncated cone surface, and the outer wall of the mounting seat is provided with a plurality of movable holes; connecting rods are movably connected to the inner walls of the multiple movable holes in a penetrating and inserting mode, and contact mechanisms are arranged between the connecting rods and the milling cutter body. By means of the arrangement of the lifting sleeve, the extrusion circular truncated cone face, the movable hole and the connecting rod, the lifting sleeve moves downwards on the outer wall of the installation base, the extrusion circular truncated cone face extrudes the connecting rod, and therefore the multiple contact mechanisms move at the same time till the multiple contact mechanisms tightly abut against the milling cutter body; therefore, the milling cutter body can be kept coaxial with the mounting seat after being mounted, so that the milling cutter body cannot eccentrically rotate when the mounting seat rotates to drive the milling cutter body to work, and the mounting stability of the milling cutter body is improved.

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 utility model relates to the field of ship maintenance, in particular to a marine diesel engine crankshaft thrust disc machining device which comprises a crankshaft body, a mounting frame, a movable frame and a milling head, a fixing frame is arranged above the crankshaft body, the mounting frame is fixed to the lower end of the fixing frame, a rotating ring is fixed to the interior of the mounting frame, and the milling head is fixed to the lower end of the mounting frame. The rotating ring is rotationally connected with a main shaft of the crankshaft body, a height-adjustable moving frame is arranged on one side of the mounting frame, and a position-adjustable milling head is arranged at the lower end of the moving frame. According to the device, the surface of the crankshaft thrust disc can be quickly and conveniently milled by conveniently adjusting the positions of the X axis and the Z axis of the milling head, and the problems that an existing machining device for the crankshaft thrust disc of the marine diesel engine is short of an effective and convenient surface quick machining function, and consequently the machining device needs to be disassembled when being maintained; and a lot of time is wasted and loss can not be repaid.

The invention relates to an inner-cooling type longitudinal-torsional ultrasonic milling cutter, belongs to the technical field of milling, and solves the technical problem that an existing cooling medium cannot be flexibly adjusted according to different machining stages and cooling requirements of parts. The cutter comprises a cutter handle assembly, a connector assembly, a transducer assembly, a cutter assembly and a cooling flow channel, the connector assembly comprises an outer sleeve and an inner sleeve, the inner sleeve can be movably arranged in the outer sleeve in a penetrating mode to form a first position and a second position to achieve adjustment of a cooling medium path, and when the inner sleeve is located at the first position, the transducer assembly is located at the second position; the cooling medium flows out of the cutter assembly to cool the cutter assembly and the cutting area; and when the inner sleeve is located at the second position, the cooling medium cools the cutter handle assembly and the transducer assembly, so that the position change of the inner sleeve enables the cooling system to have good flexibility and adaptability, and the flowing path and strength of the cooling medium can be rapidly adjusted according to different machining stages and cooling requirements of different parts.

The utility model relates to the field of machining tools, and discloses a machining tool for an external spline with side teeth, which comprises an external spline hobbing cutter and an external spline side tooth milling cutter, a plurality of groups of hobbing cutter teeth are arranged on the external spline hobbing cutter along the axial direction, a root digging structure is arranged at the tooth top of each hobbing cutter tooth, and a chamfer is arranged at the tooth root of each hobbing cutter tooth; the external spline side tooth milling cutter comprises a milling cutter rod, a milling cutter blade is installed at the end of the milling cutter rod, an involute-shaped cutting edge is arranged on the milling cutter blade, and a plurality of involute cutting edge teeth are arranged on the cutting edge side by side. The external spline driving shaft capable of machining the spline with the side teeth solves the problem that in the prior art, a cutter capable of machining the external spline of the spline driving shaft in the design does not exist, and the machining requirement of the external spline with the side teeth cannot be met.

Provide a connection part milling machine that can be used flexibly. 【Solution means】A connection part milling machine 10 that forms a recess in a workpiece has A contact device 6 having a contact structure 8 that statically contacts the connection part milling machine 10 to the workpiece during the formation of the recess, A milling tool 17, An electric drive device formed to rotate and cut the milling tool 17, An electric positioning device formed to move the milling tool 17 relative to the contact structure 8 along the positioning degrees of freedom 31, 32, 33, While the electric positioning device brings the milling tool 17 into a movement sequence defined by movement information along the positioning degrees of freedom 31, 32, 33, an electronic control unit formed to control the electric positioning device according to the movement information so that the milling tool 17 performs a rotary cutting movement to form a recess having a predetermined recess geometry is included.

The utility model relates to the technical field of milling cutters, and discloses a milling cutter with a chip removal function, which comprises a milling cutter body, the surface of the milling cutter body is circumferentially provided with a plurality of chip removal grooves, the top of each chip removal groove is provided with a chip breaking mechanism, and the top of the milling cutter body is rotatably provided with a turntable for connecting the chip breaking mechanisms. And an adapter plate is fixedly mounted in the middle of the top of the milling cutter body. By arranging the chip breaking mechanism, in the machining process of the milling cutter body, generated chips are thrown out towards the periphery of equipment after passing through the chip groove and being cut off by a chip breaking knife in the chip breaking mechanism, the cut chips are better discharged out of the milling cutter body, the chips are prevented from being accumulated on the surface of the milling cutter body, and the service life of the milling cutter body is prolonged. Therefore, the workpiece machining precision of the milling cutter body is influenced, and the quality of a machined product is improved.

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

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

The tooth-depth-adjustable large-cutting-depth tooth-inserted end face milling cutter comprises a cutter connecting base, a plurality of sliding grooves are formed in the periphery of the lower portion of the cutter connecting base, an upper connecting sinking groove is formed in the center of the upward end of the cutter connecting base, and a circular lower connecting sinking groove is formed in the center of the downward end of the cutter connecting base. A connecting hole is formed in the cutter connecting seat between the upper connecting sinking groove and the lower connecting sinking groove; the cutter position adjusting assembly comprises a sliding block which is just connected to the cutter connecting base in a sliding mode through the sliding groove, a height-adjustable cutter bar is connected to the sliding block, and a cutter body is fixedly connected to the portion, below the cutter connecting base, of the cutter bar; the multi-cutter-position adjustable design is adopted, multiple cutter positions are adjusted to be in stepped distribution in the working condition, the total allowance of plane machining is distributed to the multiple cutter positions, layered milling can be achieved through the multiple cutter positions when the cutter head rotates, and meanwhile the rotation diameters of the multiple cutter positions can be finely adjusted; the technical problem that the width direction needs to be machined twice when the rotation diameter of the milling cutter is slightly smaller than the machining width is solved.

The invention provides a design method for balancing cutting force between cutting edges of a symmetrical gradually-changing end mill, and relates to the technical field of shape characteristics of milling cutters, through the design of the gradually-changing cutting edges, a truncated edge is evolved into a sharp shape, and multifunctionality from rough machining to finish machining is achieved; the gradual change characteristic remarkably improves the chip breaking effect in the cutting process, tool adhesion is effectively prevented, meanwhile, cutting chip breaking is promoted by thinning cutting chips and reducing the bending rigidity of the cutting chips, in addition, due to the symmetrical design of the odd number of cutting edges and the even number of cutting edges, cutting force is balanced, cutting loads are reduced, abrasion is reduced, and the service life of the tool is prolonged. Further, the machining stability is enhanced, and high-quality surface quality and machining precision are ensured; through deep analysis of cutting force and distribution thereof, vibration is effectively reduced through the design, the stability of the cutter is further improved, the service life of the cutter is further prolonged, meanwhile, the fracture state of cuttings is optimized, and the machining efficiency is improved.

The utility model relates to the technical field of printed circuit board (PCB) milling cutters, and discloses a PCB milling cutter with a replaceable cutter head, which comprises a cutter head and a cutter handle, and an adjusting mechanism and a dismounting mechanism are arranged between the cutter handle and the cutter head. Through the arrangement of a clamping seat and a buckling seat, when the tool bit is disassembled, four wedge-shaped clamping blocks are pressed respectively, so that the four wedge-shaped clamping blocks are extruded and compressed into a telescopic groove, then the tool bit is pulled downwards, and the clamping seat and the buckling seat are disconnected, so that the tool bit can be quickly taken down for replacement, the whole milling cutter does not need to be replaced, the operation is convenient, and the practicability is high. The practicability of the PCB milling cutter is improved; the sealing cover on the tool bit is taken down in a rotating mode, cooling liquid is injected into the cooling pipe through the injection opening of the cooling pipe, and finally the sealing cover is covered and screwed tightly in a rotating mode, so that sealing performance is guaranteed, when the tool bit works, the cooling liquid in the cooling pipe can cool the high temperature generated when the tool bit works, and the situation that the service life of the tool bit is affected due to the too high temperature is avoided.