179results about "Turning machine accessories" patented technology

The invention belongs to the technical field of cutter disassembly and assembly, and particularly relates to a cutter locking structure which comprises a cutter and a cutter handle, and a cam tensioning mechanism is arranged between the cutter and the cutter handle. The cam tensioning mechanism comprises a lock shaft and an eccentric wheel installed on the lock shaft, an axial tensioning piece is arranged between the cutter and the cutter handle, the axial tensioning piece is movably assembled in the cutter handle, one end of the axial tensioning piece is in threaded connection with the cutter, and a tensioning hole is formed in the axial tensioning piece; or a tensioning hole is formed in the short taper shank of the cutter; the axis of the tensioning hole coincides with the central axis of the cutter handle and is perpendicular to the axis of the lock shaft. The lock shaft can rotate relative to the cutter handle, penetrates into the cutter handle and is connected with the tensioning hole in an inserted mode so that the eccentric wheel can be located in the tensioning hole, the eccentric outer side of the eccentric wheel makes contact with the hole wall of the tensioning hole, and the eccentric wheel drives the cutter to move in the axial direction of the eccentric wheel under rotation of the lock shaft so as to tension the cutter. And a locking structure is arranged between the lock shaft and the knife handle. The tool can be prevented from loosening and rotating relative to the tool handle, machining precision is guaranteed, machining efficiency is improved, and machining cost is saved.

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 application belongs to the technical field of crankshaft turning, in particular to a crankshaft machining and turning device, which comprises a lathe base, a fixing base is fixed to the top end of the lathe base, a sliding base is slidably connected to one side of the lathe base away from the fixing base through a No.1 electric sliding block, two V-shaped clamping blocks are arranged to clamp the outer wall of the crankshaft during turning, two conical rods are arranged to clamp the two ends of the crankshaft, the two V-shaped clamping blocks can clamp crankshafts of different thicknesses for turning, after the two ends of the crankshaft raw material are clamped by the two conical rods, four clamping plates are arranged at the crank wall on both sides of the turning position to clamp, which replaces the traditional clamping mode of the two ends of the crankshaft, can self-adaptively adjust the clamping position to clamp both sides of the turning position, improves the stability of clamping the eccentric crankshaft, reduces the situation of falling off of the crankshaft, improves the machining quality and the safety of the equipment, and reduces the failure rate and maintenance cost in the production process.

The utility model discloses a liquid rocket engine frame butt joint hole machining device, and particularly relates to the technical field of hole aligning devices. When machining of a liquid rocket engine frame butt joint hole is started, a boring cutter makes contact with a hole opening point of the butt joint hole, a guide frame makes contact with the butt joint hole in advance, and a rubber pad in the guide frame makes close contact with the wall of the butt joint hole; the guide frame makes contact with the butt joint hole wall through the rubber pad, errors caused by vibration or deviation of the boring cutter can be effectively prevented, the guide frame is aligned with the axis of the boring cutter, the stability of the boring cutter in the machining process is guaranteed, the device has high adaptability and high precision, working parameters can be adjusted according to actual requirements, and the service life of the boring cutter is prolonged. The device is simple in structure, stable in the machining process and capable of remarkably reducing errors, abrasion is effectively reduced through combination of a stabilizing assembly and a hydraulic system, the service life is prolonged, the maintenance cost is reduced, the hole machining task is efficiently completed through an advanced stabilizing and adjusting mechanism, and the device has the long-term use stability.

The invention discloses portable low-voltage motor end cover grooving equipment, and belongs to the technical field of end cover machining equipment.The portable low-voltage motor end cover grooving equipment comprises a machining assembly, a locking assembly, a suction cup assembly, an end cover, a three-jaw chuck, a connecting assembly and a driving assembly, the suction cup assembly is placed on a workbench, the end cover is placed on the upper surface of the suction cup assembly, and the bottom of the three-jaw chuck is inserted into the end cover; the driving assembly is inserted into the bottom of the three-jaw chuck, the connecting assembly is installed at the upper end of the driving assembly, the machining assembly is in transmission connection to the connecting assembly, the locking assemblies are further installed on the connecting assembly, the locking assemblies are arranged in pairs, and the locking assemblies are arranged on the outer side of the machining assembly. The problem that a motor cannot be quickly put into use due to the lack of portable machining equipment for the motor end cover in the prior art is solved. And the end cover is convenient to process and the processing cost is lower.

The present invention provides an inspection device, an inspection method and a method for manufacturing a disc brake plate. The inspection device (1) comprises: a support portion (10) supporting a plate-shaped inspection object (400) at an upper end portion (101) of the support portion (10); and a force sensor (20) fastened to a lower end portion (102) of the support portion (10), the force sensor (20) being used to detect a force in a gravity direction and a moment around an axis orthogonal to the gravity direction acting on the support portion (10) from the inspection object (400) in a non-rotating state.

The utility model discloses an automatic tool retracting tool rest of a numerical control machine tool, which relates to the technical field of machine tools and comprises a mounting disc, a tool lifting mechanism is fixedly mounted on the front side of the mounting disc, a tool retracting mechanism is fixedly mounted on the front side of the tool lifting mechanism, and a tool changing mechanism is fixedly mounted at the front end of the tool retracting mechanism. The tool retracting mechanism comprises a fixing seat, and the fixing seat is fixedly installed on the front face of the tool retracting mechanism. By the adoption of the structure, the first motor is used for driving the fixing disc to rotate, the tool changing assembly moves along with the fixing disc, when the machining tool bit moves to the uppermost end, the second air cylinder is started to push the third air cylinder to move downwards, then the third air cylinder pushes the tool bit on the sleeve base to move forwards for machining, and when tool changing is needed, the first motor is started to enable the fixing disc to rotate; the second air cylinder and the third air cylinder retract to retract the tool bit, the position of the tool bit is changed, the air cylinders are started again, tool changing can be completed, tool changing can be flexibly conducted according to actual needs, and use convenience is greatly improved.

A multi-sensor integrated intelligent tool holder real-time monitoring and anti-collision system, comprising: an intelligent tool holder device, an external PLC controller, a built-in relay, a numerical control machine tool and a PC signal processing and display module; the intelligent tool holder device comprises: a handle cone structure, a force sensor structure, a resistance strain gauge group, a protective shell, a plurality of supporting copper columns, a first hardware circuit board, a second hardware circuit board, a vibration sensor, a lithium battery, a fixed upper shell, a fixed bottom shell, a draw stud, a clasp spring, a compression cap and an end mill. The application is based on the collected cutting signals for real-time analysis and rapid judgment and response, is not affected by the machining environment and the shape and size of the workpiece, is accurate in measurement, greatly reduces the influence of the external sensor arrangement distance on the cutting data accuracy, and is suitable for the monitoring of cutting force and vibration and the anti-collision monitoring link in the part machining process, and improves the cutting automation, intelligence and safety level.

The utility model discloses a boring machine tool fixing device for machining and belongs to the technical field of machining. The basic handle is connected with the mounting seat, a slot is formed in the mounting seat, and the boring cutter is inserted into the slot; the inner side of the slot is provided with a placing groove, the inner side wall of the placing groove is provided with a reset groove, and a reset spring is arranged in the reset groove; a convex block is arranged at the upper end of the inner wall of the mounting plate, a limiting block is arranged at the lower end of the inner wall of the mounting plate, and the outer wall of the mounting plate is connected with a reset spring; limiting grooves are formed in the upper end of the outer side wall of the boring cutter, and the limiting blocks and the limiting grooves are matched and inserted in a one-to-one mode. The upper end of the protruding block is matched with the limiting assembly. According to the boring cutter fixing device, the boring cutter is effectively fixed, the stability of the boring cutter during operation is improved, the boring cutter is conveniently fixed, the dismounting process of the boring cutter is simplified, and the problem that the boring cutter is inconvenient to mount and fix in a traditional mode is solved.

The utility model relates to the technical field of machining cutters, in particular to a machining shaft. The second end of a cutter handle body is provided with a connecting hole and can be connected with a main shaft through the connecting hole; a taper hole is formed in the first end of the cutter handle body, the large end of the taper hole faces outwards, an inner blind rivet assembly is arranged at the small end of the taper hole, a threaded blind rivet in the inner blind rivet assembly is arranged at the center of the small end of the taper hole and limited, and the threaded part of the threaded blind rivet faces the taper hole, so that the cutter handle of a specified model inserted into the taper hole can be connected through the threaded blind rivet. The taper holes are communicated with the connecting holes, so that the threaded blind rivets can be replaced from the connecting holes, and when different types of cutter handles need to be connected, the threaded blind rivets of different types are replaced to be matched with the cutter handles of the types, so that the main shaft can be matched with more types of blind rivets and cutters for production and machining, and the universality of the machining cutter handle is improved; and various machining production requirements are met, and the production range of the machine tool is expanded.

The utility model provides a special fixture for maintaining and detecting a main shaft, which comprises a three-jaw chuck consisting of a chuck body, three linkage pieces and calipers, and further comprises an independent adjusting assembly arranged between the linkage pieces and the calipers and used for adjusting and controlling the calipers to move independently; the three-jaw chuck and the independent adjusting assembly are arranged, the three calipers on the three-jaw chuck can be independently adjusted through the independent adjusting assembly, and when the damaged spindle cannot be completely clamped after the three calipers are moved to the designated position at the same time through the linkage piece, the three calipers can be independently adjusted through the independent adjusting assembly. At the moment, the position of one caliper is independently adjusted through the independent adjusting assembly, so that the three calipers can clamp the damaged main shaft to the maximum degree, the main shafts with different damage degrees can be clamped without replacing other types of chucks, a user can autonomously select to adjust the calipers of the three-jaw chuck in a linkage mode, and the working efficiency is improved. Or one of the calipers can be independently adjusted to meet actual requirements.

This application relates to a high-precision tool-unfolding mechanism with a high-power built-in drive, comprising a rotating frame, a tool head slidably mounted on the rotating frame, and a drive assembly that drives the tool head to reciprocate radially. The drive assembly includes a lead screw and a sliding block. The two ends of the lead screw are rotatably connected to the rotating frame, and the sliding block is threadedly connected to the lead screw and fixes the tool head. The drive assembly also includes a drive source and a transmission structure. The drive source drives the lead screw to rotate through the transmission structure. A mounting cavity is provided in the middle of the rotating frame, and the drive source is located in the mounting cavity. This application integrates the drive motor into the rotation center of the rotating frame, fundamentally eliminating the mass eccentricity caused by an externally mounted motor. This makes the center of gravity closer to or even coincident with the axis of rotation, greatly improving the dynamic balance and stability during high-speed rotation. The built-in layout makes the structure more compact, facilitating the selection of a higher-power drive motor, obtaining stronger driving force and more sensitive tool head adjustment, and significantly improving transmission accuracy and processing efficiency.

The utility model relates to the field of gear hobbing machines, in particular to a tip replacement structure of a gear hobbing machine, which comprises a mounting seat, an assembly hole is arranged at the center of one end of the mounting seat, a tip is arranged in the assembly hole, a fixing groove is arranged on the outer wall of one side of the mounting seat, and a fixing structure is arranged at the center of the assembly hole of the fixing groove. The fixing structure comprises movable grooves formed in the mounting base and located in the centers of the two ends of the fixing groove, a two-way screw rotationally connected to the fixing groove and located at one ends of the movable grooves, a mounting groove formed in the mounting base and located at the bottom of the fixing groove, and a motor mounted in the mounting groove. The center is connected with the contact surface through the first bearing, the second bearing and the movable roller, so that abrasion is reduced after the center rotates, the first dustproof cover and the second dustproof cover are matched with the sealing ring to seal the interior of the assembly cavity, dust prevention and sealing are facilitated, and operation stability is guaranteed; abrasion is reduced, and the service life is prolonged.

The cutter handle capable of fixing the cutter mounting length comprises a cutter handle body, a through hole is formed in the cutter handle body, and the through hole is divided into a through hole upper section and a through hole lower section; a locking nozzle and a locking nut are arranged in the lower section of the through hole; the locking mouth comprises a claw-shaped locking part with a large upper part and a small lower part, a claw of the claw-shaped locking part is arranged downwards, a limiting plane is arranged in the middle of the cutter handle body, and the limiting plane is perpendicular to the mounting axial direction of a locked cutter; the claw-shaped locking part is provided with a first conical locking face with the downward taper, the locking nut is provided with a second conical locking face matched with the conical locking face, and when the second conical locking face moves upwards in the axial direction, the first conical locking face moves in the radial direction, so that the locked cutter is locked. The tool locking device has the advantage that when the tool is locked, the locked tool cannot move up and down.

A machine tool with an automatic tool changer that mounts a tool holder 11 to which a tool 25 is attached on a spindle head 26 and machines a workpiece 24 includes an eddy current sensor 1 disposed such that a measurement end surface 1-4 faces the outer peripheral surface of a flange 11B of the tool holder 11, and a data processor 3 that detects runout of a tool 25-1 mounted on the spindle head 26 based on data obtained by measurement by the eddy current sensor 1. The eddy current sensor 1 includes a coil 1-2 formed in a spiral shape and held in a bobbin 1-3 serving as a cylindrical container, and a core 1-1 serving as a soft magnetic body disposed at the axial center of the coil 1-2 on the measurement end surface 1-4 side. The machine tool can perform a tool change operation at a higher speed without compromising the detection accuracy.

A fixation device for fixing a first part of a surgical instrument to a second part of the surgical instrument. The fixation device has a longitudinal axis and includes a fixation body configured to accommodate a portion of the first instrument part and a portion of the second instrument part therein. A first fastening member and at least one movable first clamping member are configured to clampingly engage at least the first instrument part so as to fix at least the first instrument part to the fixation device. A first actuation member is configured to receive at least a portion of the fixation body. The first actuation member includes a second fastening member configured to engage with the first fastening member. The first actuation member is configured to exert a clamping force on the first clamping member when the second fastening member is in engagement with the first fastening member.

A tool holder assembly (100) having movable parts (108, 109) and an operating system (110'). The movable parts (108, 109) of the tool holder assembly (100) can be configured to shift, as necessary, to engage a jig or tool when the assembly (100) is actuated. In some cases, the movable parts (108, 109) can be further configured to shift for better engagement by a jig or tool. The operating system (110') can be electrical.

The present invention is to provide a control device for a machine tool that performs oscillating cutting and that enables loads on a machine tool to be versatilely reduced without depending on the configuration of the machine tool. The present invention provides a control device 1 for a machine tool that performs oscillating cutting by causing a tool T and a workpiece W to oscillate relative to each other, the control device 1 including a cutting edge angle acquiring unit 12 that acquires a cutting edge angle θ1 of the machine tool T, an oscillating amplitude calculating unit 13 that calculates an oscillating amplitude required for chipping in any oscillating direction on the basis of the cutting edge angle θ1 of the tool T, an oscillating direction determining unit 14 that determines an oscillating direction on the basis of a calculation result from the oscillating amplitude calculating unit 13, and an oscillating operation control unit 15 that controls, on the basis of machining conditions, an oscillating operation in the oscillating direction determined by the oscillating direction determining unit 14.

In order to detect a workpiece (the presence or absence of the workpiece and the length of the workpiece) of a spindle without using torque variation of a servo actuator, a workpiece detection device (30) is provided with a push rod (22) which is disposed inside a back spindle (20) that grips the workpiece (W) and which can move so as to push the workpiece (W) and discharge the workpiece (W) to the outside, and a servo motor (28) which has a drive unit (28a) that moves the push rod (22) and an encoder (28b), and which detects the workpiece (the presence or absence of the workpiece and the length of the workpiece) on the back spindle (20). And a control unit (60) that controls the drive unit (28a) on the basis of the detection result of the encoder (28b). The control unit (60) moves the push rod (22) to a standby position, the encoder (28b) detects the movement of the workpiece (W) when the push rod (22) is moved, and the control unit (60) calculates the presence or absence of the workpiece (W) on the basis of the movement.

A technology was needed that could supply a sufficient amount of liquid to the area where the blade was processing the workpiece. [Solution] The processing apparatus comprises a blade, a rotating mechanism rotatable around a rotation axis, and a holding member. The blade is mounted on the rotating mechanism by the holding member, which clamps a portion of the blade. The blade has a plurality of recesses, each smaller in depth than the blade's thickness, and each of the recesses extends from the rotation axis side to the outer circumference, spanning the portion clamped by the holding member. Liquid is supplied from the outside to a space that is at least partially surrounded by the holding member, on the rotation axis side of the position where the portion of the blade is clamped. The liquid supplied to the space is injected into each of the plurality of recesses on the rotation axis side of the portion of the blade.

The utility model provides a cutter bar assembly capable of being stably combined. The cutter bar assembly comprises a cutter bar, a cutter, a fixing piece, a bolt and a lock cover. A conical hole, a clamping groove and a lock hole which are communicated with one another are formed in the cutter bar; the cutter is provided with a clamping hole with a polygonal outline, and a conical combination part is inserted into the conical hole of the cutter bar; the fixing piece is provided with a clamping part clamped with the clamping hole and a clamping block clamped with the clamping groove; the bolt penetrates through the fixing piece and is locked in the lock hole in a screwed mode so as to combine the fixing piece and the cutter bar. The lock cover is combined with the cutter bar. The clamping part of the fixing piece is clamped with the clamping hole of the cutter, and the clamping block is clamped with the clamping groove, so that the fixing piece is clamped with the cutter and the cutter bar, the cutter bar and the cutter can be stably combined, and the problems that the existing cutter bar and the cutter are easy to rotate relatively, so that the machining efficiency is poor, and the machining cost is high can be solved. And even negative influences are brought to the machining quality of the workpiece.

Method for applying a surface structuring to a surface of a workpiece (WS) on a machine tool (1000), comprising: - carrying out a feed movement of a milling tool (90) with at least one projecting cutting edge along the surface of the workpiece (WS), which milling tool (90) is driven in rotation by a work spindle (1040) of the machine tool (1000) and is accommodated in a tool head (10) of the machine tool (1000), - applying the surface structuring according to a predetermined pattern to the surface of the workpiece (WS) during the feed movement of the milling tool (90) on the basis of a control signal to an actuator (20) integrated in the tool head (10), which actuator is designed to drive an oscillation of the milling tool (90) on the basis of the control signal, wherein the control signal comprises a high-frequency carrier signal and a useful signal modulating the carrier signal, which is generated on the basis of data indicating the predetermined pattern, characterized in that the control signal is transmitted contactlessly via a transmitter unit arranged on the work spindle (1040) to a receiver unit arranged on the tool head (10), and the actuator (20) is driven on the basis of the useful signal after demodulation of the control signal.

Provided is a tool seating confirmation device that accurately confirms the mounted state of a tool, the tool seating confirmation device including: an air flow passage formed across a seating surface of a rotating spindle on which a tool from a housing of a tool main shaft device is mounted; an air supply source that supplies air to the air flow passage; an opening / closing valve connected to the air flow passage; a pressure sensor connected to the air flow passage; and a flow passage coupler that is formed on the housing side and in which a spool, which has a flow passage formed in a center section thereof and is displaced due to air pressure, connects a primary side flow passage provided on the housing side and a secondary flow passage formed in the spindle within the air flow passage, the flow passage coupler having formed therein a breather hole that is able to let air in and out of a space in which is built a spring that urges the spool against the air pressure.

The utility model discloses a damping CNC tool holder, comprising an upper tool holder and a lower tool holder arranged thereunder, a shock absorbing mechanism being connected between the upper tool holder and the lower tool holder, the upper tool holder comprising a first mounting seat, and the lower tool holder comprising a second mounting seat: the shock absorbing mechanism comprising a positioning shell, the top and bottom of the positioning shell being respectively fixedly connected with a first connecting shell and a second connecting shell, a sliding cavity being provided at the center of the interior of the positioning shell, and a sliding plate being slidably connected with the inner wall of the sliding cavity. The device has the advantage of high shock absorption, and solves the problem that the structure of some damping CNC tool holders is relatively simple and has no shock absorption effect, and the lack of shock absorption function means that in the process of high-speed cutting, the vibration to which the tool is subjected cannot be effectively suppressed, which may lead to an increase in the surface roughness of the workpiece, and the dimensional accuracy is difficult to guarantee, and at the same time, continuous vibration will aggravate the fatigue damage of the tool, accelerate the wear of the tool edge, and significantly shorten the tool life.

Hand-held tool, comprising: - two handle elements (3, 4), each formed in one piece with a jaw element (5, 6), and - a joint (7), which joint (7) connects the two handle elements (3, 4) so ​​as to be pivotable relative to one another about a rotation axis (8), wherein a gap between the two jaw elements (5, 6) can be changed by pivoting the handle elements (3, 4) relative to one another or the jaw elements (5, 6) can be placed against one another by the pivoting, wherein the two handle elements (3, 4) together with the respective jaw elements (5, 6) are made of an aluminum alloy.

A maintenance indicator stores an information bit string. The information bit string encodes at least a section of a piece of maintenance information of a component of a cutting tool in binary. The information bit string has a plurality of information bits. Each information bit has an information bit state. In an activated display state, the maintenance indicator emits flashes that follow the information bit states of the information bit string and thus displays an information signal. In the activated display state, the maintenance indicator displays an announcement signal. The announcement signal announces the information signal. The information signal can be filmed by a photosensitive element while maintaining an air gap.

The invention relates to the technical field of machine tool accessories, in particular to a cutter handle nut which comprises a rear inner shell, a front outer cover, a dustproof cover, a bearing and a check ring, a first internal thread is arranged on the hole wall of the rear inner shell, an external thread is arranged on the outer side wall of the rear inner shell, and a first mounting position, a check ring, a second mounting position and a second internal thread in threaded connection with the external thread are sequentially arranged on the hole wall of the front outer shell; the bearing and the check ring are sequentially installed on the second installation position, an outer ring of the bearing is clamped between the check ring and the check ring, the check ring is clamped between the outer ring of the bearing and the end face of the rear inner shell, the dustproof cover is installed on the first installation position and covers the bearing, the dustproof cover is provided with a via hole, and an inner ring of the bearing is provided with an abutting inclined face. Modular assembly is achieved, disassembly, assembly and maintenance are convenient and fast, in the process of locking or unlocking the elastic chuck and the cutter, sliding friction between the front outer cover and the rear inner shell and the outer conical surface of the elastic chuck is avoided, the elastic chuck is not subjected to torsion, the dustproof effect is good, the service life is long, and the failure rate is low.

To provide a tool holder and its connecting member capable of preventing decay of a coolant liquid, extending the life of a cutting tool, and efficiently removing chips adhering to a workpiece or tool. The connection structure (100C) includes a machine spindle (9C) having a first coolant supply passage (98C), a tool holder (1) having a second coolant supply passage (12), and a connection member (20C) having a third coolant supply passage. The connection member (20C) is provided in the third coolant supply passage and has a through hole extending in the axial direction. The connection member (20C) includes a fine bubble generating member (30) that generates fine bubbles in the coolant liquid within the through hole, and a retaining mechanism that prevents the fine bubble generating member (30) from falling out of the third coolant supply passage.

A machine tool is provided with: a main shaft to which an object to be cut (21) is attached; a rotation mechanism that rotates the main shaft; a tool holding unit that holds a tool; a movement mechanism that moves the main shaft and the tool holder relative to each other in the direction of the rotation axis of the main shaft; a vibration mechanism that vibrates the spindle and the tool holder relative to each other in a vibration direction; and a control unit that controls the rotating mechanism and the vibrating mechanism, the machine tool rotates the main shaft by the rotating mechanism and moves the object to be cut (21) and the tool by the moving mechanism and the vibrating mechanism while vibrating the object to be cut (21) relative to each other, thereby cutting the object to be cut (21). The control unit drives the rotation mechanism and the vibration mechanism such that the tool is positioned at the same position every constant rotation period of the spindle in the vibration direction, and controls the rotation mechanism and the vibration mechanism such that the outer circumferential surface or the inner circumferential surface of the object to be cut (21) is machined so as to have a substantially regular polygon shape when viewed from the direction of the rotation axis.

The invention discloses a clamping jaw device capable of quickly setting a tool and adjusting a clamping jaw, and belongs to the technical field of machining. The clamping jaw device comprises a chuck, a plurality of fan-shaped dials and a plurality of clamping jaw units; the plurality of fan-shaped dials are uniformly arranged on the chuck along the circumferential direction of the chuck, each fan-shaped dial is provided with a plurality of arc lines taking the center of the chuck as the circle center, the diameters corresponding to the plurality of arc lines on each fan-shaped dial are different, and the side edge of each fan-shaped dial is provided with scale marks; each clamping jaw unit comprises a sliding block and a clamping jaw, the sliding blocks are slidably arranged on the chuck in the radial direction of the chuck, first racks arranged in the radial direction of the chuck are arranged on the top faces of the sliding blocks, and second racks arranged in the radial direction of the chuck are arranged on the bottom faces of the clamping jaws. According to the clamping jaw device capable of achieving rapid tool setting and clamping jaw adjustment, tool setting and clamping jaw adjustment can be rapidly completed, operation is easy, consumed time is short, no tool needs to be used, and therefore the working efficiency is greatly improved.