5118 results about "Knife holder" patented technology

The invention relates to the technical field of mechanical detection, in particular to an intelligent tool setting control method and system, and the method comprises the steps: collecting burr morphology data and tool state parameters of a slitting edge; establishing a mapping relationship between burr generation and processing parameters based on a process DOE model, wherein the process DOE model is used for extracting a key factor set influencing the slitting quality; when the real-time monitoring value of the key factor set deviates from the optimization interval of the process DOE model, generating a position and posture compensation instruction of the slitting tool rest; iteratively updating the key factor weight distribution of the process DOE model; and when the variance of the key factor weight distribution is converged to a preset threshold value, determining that the tool setting control closed-loop optimization is completed. According to the method, the defects of dynamic response hysteresis and insufficient compensation precision in traditional tool setting control are effectively overcome, and closed-loop self-optimization control of the position and posture of the slitting tool rest-process parameters-burr suppression is constructed through a three-dimensional dynamic compensation mechanism of real-time fusion of multi-source sensing data.

The invention discloses a turning and milling integrated precision machine tool, and relates to the technical field of machine tool precision machining. The problems that an existing turning and milling composite machine tool is large in size, tedious in function switching and low in machining precision are solved. The numerical control lathe comprises a lathe body, a gantry, a milling machine vacuum suction cup, a rough milling module, a finish milling module, a lathe vacuum suction cup, a lathe X-axis moving module, a turning and milling machine Z-axis moving module, a turning tool rest, a lathe spindle module and three visual imaging modules, and the lathe X-axis moving module is arranged on one side of the upper end of the lathe body in the width direction; the turning and milling machine Z-axis moving module is arranged in the middle of the other side of the upper end of the machine tool body in the length direction, the turning tool rest and the milling machine vacuum suction cup are detachably connected to a turning and milling machine Z-axis moving platform of the turning and milling machine Z-axis moving module, and the gantry is arranged above the middle of the turning and milling machine Z-axis moving module in a striding mode. The turning and milling machine Z-axis moving module, the rough milling module and the finish milling module are each provided with a visual imaging module. The method is used for turn-milling machining.

According to one embodiment of the present disclosure, there is provided a razor cartridge comprising: a blade housing for accommodating at least one razor blade having a cutting edge in a longitudinal direction, the blade housing including a housing top surface toward which the cutting edge faces and a housing bottom surface opposite to the housing top surface; and a frame coupled with the blade housing, the frame being coupled with the blade housing such that the blade housing is pivotable with respect to the frame about a first pivot axis penetrating the blade housing.

A coaxial cutting structure for film winding replacement, comprising a roller and a cutting device. A notch is provided on the roller, and the cutting device is arranged inside the roller and performs telescopic movement through the notch. The cutting device includes a toothed knife, a mounting tool holder, and a driving device. The mounting tool holder is arranged inside the roller. The toothed knife is detachably connected to the mounting tool holder and is located below the notch. The driving device is fixedly connected to the mounting tool holder. An arc-shaped guide groove is provided on the toothed knife, and the output end of the driving device moves movably in the arc-shaped guide groove and drives the toothed knife to slide up and down. In the present invention, the telescopic movement of the toothed knife is precisely controlled by the driving device, and the toothed knife adopts mobile cutting, effectively reducing the dependence on film tension. Moreover, with the help of the telescopic design of the toothed knife, on the premise of ensuring the cutting function, there is no need for too many auxiliary structures or high-power driving components, making the device structure more compact and lightweight, which helps to improve the performance of the equipment and extend its service life.

The invention discloses a numerical control machine tool device convenient for changing the cutting angle of a cutter, and relates to the technical field of numerical control machine tools, the numerical control machine tool device comprises a main body structure, the main body structure comprises a machine tool body, one side of the top of the machine tool body is fixedly connected with a three-jaw chuck, one side of the three-jaw chuck is provided with a cutter rest, and the bottom of the cutter rest is fixedly connected with a cutter table; the centering assembly comprises a fixing bolt connected to the top of the tool rest in a threaded mode, and the surface of the fixing bolt is rotationally connected with a connecting plate. The centering assembly is used for replacing manual visual alignment, tool positioning is achieved, the tool positioning state can be switched under the conditions that a tool rest is not aligned, and the tool is obliquely installed due to abrasion, the tool can be obliquely installed according to actual requirements, and therefore the cutting angle can be conveniently adjusted and changed; and a cutter pushing-in-dust removal linkage mechanism is achieved through the dust removal assembly, so that it is guaranteed that the fixing bolt can be tightly attached to the top of the cutter when being fastened, the cutter can be ejected out in an auxiliary mode when the cutter is disassembled, and use convenience is improved.

The invention relates to the technical field of machining, in particular to a turning and milling composite lathe which comprises a machine table, a discharging mechanism and a main shaft movably mounted on the machine table, first moving mechanisms are movably mounted on the machine table and located at the two ends of the main shaft, three second moving mechanisms are mounted on a tool rest, and the three second moving mechanisms are all mounted in a surrounding mode with the main shaft as the center. Turning parts are fixedly mounted on the two groups of second moving mechanisms close to the left end of the machine table, and milling mechanisms are mounted on the second moving mechanisms and the first moving mechanisms close to the right end of the machine table. The two ends of a workpiece can be turned and milled in the X-axis direction and the Y-axis direction at the same time by arranging the first moving mechanisms at the two ends of the main shaft, and flexible diversity can be achieved in the machining process by arranging the clamping pieces capable of clamping different cutters; the second moving mechanism is arranged on the tool rest so that the tool rest can mill, punch and cut a workpiece in the Z-axis direction, and the first moving mechanism and the second moving mechanism can machine the workpiece at the same time.

A holesaw assembly can include a holesaw, a pilot drill, an arbor, and a retainer. The holesaw can include a base and a cylindrical wall coupled to the base. The cylindrical wall terminates away from the base in a cutting edge and defines an internal space. The drill bit can include a cutting tip and an elongate shaft portion. The arbor can include a first portion configured to be couplable with a tool holder of a power tool and a second portion configured to be coupleable with the holesaw. The arbor can be configured to receive the drill bit and facilitate movement of the drill bit between an extended position and a retracted position relative to the arbor while the drill bit remains coupled to the arbor. The cutting tip is closer to the first portion of the arbor in the retracted position than in the extended position. The retainer can be configured to selectively maintain the drill bit in the retracted position. Release of the retainer can allow movement of the drill bit from the retracted position toward the extended position.

The utility model discloses an electric hair cutter convenient for cleaning hair of a cutter, and relates to the technical field of hairdressing tools. The fixed knife is connected to the knife rest; a moving blade; the first elastic piece is used for driving the cutter tooth end of the movable cutter to be attached to the cutter tooth end of the fixed cutter; the pressing block is provided with a connecting end and a pressing end, the area between the connecting end and the pressing end is hinged to the knife rest, the connecting end and the movable knife are connected through a connecting assembly, and the pressing end can be pressed to be close to the fixed knife, so that the connecting end can drive the knife tooth end of the movable knife to be away from the knife tooth end of the fixed knife through the connecting assembly. The cutter tooth end of the movable cutter and the cutter tooth end of the fixed cutter in the electric hair cutter capable of conveniently cleaning the cutter hair can be far away from each other, so that cleaning personnel can more conveniently clean the residual hair between the fixed cutter and the movable cutter, and the convenience of cleaning and maintenance of the electric hair cutter capable of conveniently cleaning the cutter hair is improved.

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

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

A nose hair trimmer head includes a trimmer head shell, a trimmer head cover and a moving blade component, wherein the moving blade component includes a blade holder, a blade and a first spring piece. The first spring piece is arranged in the sliding groove of the blade holder. Both ends of the first spring piece are respectively in contact with the two blades to push the blade edges of the two blades to respectively abut against the inner side wall of the trimmer head cover. Adopting the above technical solution can realize the basic functions of the nose hair trimmer head while featuring a more stable structure and reducing vibration and noise.

The utility model relates to the technical field of machine tool equipment, and discloses a self-centering tool rest which comprises a sliding plate and a tool mounting table arranged on the sliding plate and used for mounting a tool, and the sliding plate is provided with a cutting position directly facing the tool and a rolling jacking mechanism used for counteracting cutting force of the tool. The rolling jacking mechanism comprises a jacking part, a rolling jacking part and a first driving assembly, wherein the jacking part is arranged on the sliding plate and moves in the radial direction of the workpiece at the position right opposite to the cutter installing table, the rolling jacking part is arranged on the end face, right opposite to the cutter installing table, of the jacking part, can be close to the workpiece and is right opposite to the cutter to abut against the workpiece, and the first driving assembly drives the jacking part to be close to or away from the workpiece. According to the self-centering tool rest in the scheme, when a tool cuts a workpiece, the axis of the workpiece can be effectively prevented from deviating.

The invention relates to the field of lathes, in particular to a wind power bolt slender shaft turning special machine which comprises a machine body composed of a shell and a base. A main shaft unit, a sliding table unit and a tool rest unit are arranged on the base; the self-avoiding positioning unit is arranged on the main shaft unit, the self-avoiding positioning unit comprises a telescopic positioning assembly and a locking assembly used for locking the positioning assembly, and the positioning assembly is used for conducting double positioning of axial jacking and radial clamping on the wind power bolt; the positioning assembly can contract in the machining process so as to avoid a tool feeding space. The retractable positioning assembly is matched with the locking assembly for linkage unlocking, when the tool rest unit moves to a clamping area, unlocking can be automatically triggered, the claw petals are retracted, the machining space of a tool is completely avoided, and therefore integrated continuous machining of a wind power bolt shaft body and threads at the two ends is achieved. And the procedures of end waste cutting and secondary clamping are thoroughly eliminated.

The invention relates to the technical field of turning devices, and discloses a sheet metal turning device and a stainless steel sheet metal turning method.The sheet metal turning device comprises a lathe bed, a main shaft installed in the lathe bed, a guide rail, a feeding base and a tool rest, and is characterized in that a vibration disc, a driving assembly, a clamp and an overturning assembly are further installed in the lathe bed; and the clamp is movably mounted on the vibration disc. The driving assembly, the vibration disc, the clamp and the overturning assembly are arranged on the lathe bed, when a stainless steel metal plate workpiece is machined, rough machining is conducted firstly, then the workpiece on the main shaft is transferred and fixed to the vibration disc through the driving assembly, the clamp and the overturning assembly, and then the stress of the workpiece is eliminated through vibration; and finally, the workpiece is transferred again and fixed to the main shaft for finish machining, the turning machining of the stainless steel sheet metal part can be adapted through the rough machining, stress removing and finish machining modes, the probability of workpiece deformation is reduced, and the machining quality of products can be improved.

A tool holder rail and a tool holder including the same are provided, wherein the tool holder rail includes: an elongate main body extending in a longitudinal direction and including two mounting sides extending in the longitudinal direction, the two mounting sides being inclined to each other with an included angle therebetween; and two rail slots disposed on the two mounting sides, respectively, each of the two rail slots including two flanges extending in the longitudinal direction and toward each other, each of the two rail slots being configured for slidable engagement of a tool seat.

The invention discloses a recessing machine which comprises a machine frame, a sliding seat is movably arranged on the machine frame, and the sliding seat can move linearly. The device is characterized in that the device further comprises a supporting seat which is movably arranged on the sliding seat; the first driving assembly can drive the supporting seat to move horizontally; the number of the first knife rests is at least two, and the first knife rests are movably arranged on the supporting base; the number of the second tool rests is at least two, and the second tool rests are movably arranged on the supporting base; each first knife rest is provided with one first guide wheel assembly; each second knife rest is provided with one second guide wheel assembly; according to the invention, the different dadoing blades are used for alternate dadoing, so that the dadoing effect can be ensured.

The invention relates to the technical field of numerical control machine tools, in particular to a vertical numerical control machine tool based on an intelligent control system and a high-precision machining method thereof. The vertical numerical control machine tool comprises a workbench, a vertical tool rest and a rotating table, a protective plate is arranged around the rotating table, a rotating mechanism synchronously rotates in the workbench at the bottom of the rotating table, a liquid collecting box and a material collecting box are fixedly arranged in the workbench at the bottom of the rotating table, and the liquid collecting box and the material collecting box are spliced into a circular box body. Chippings on the filter screen are guided into the material collecting box to be stored through the material stirring rod, so that the cutting fluid is separated from the chippings, oil gas evaporated in the material collecting box is separated from the external environment through the partition plate, then the oil gas evaporated in the material collecting box is pumped into the backflow pipe through upward movement of the partition plate, and the oil gas is liquefied into the cutting fluid through the cooling capacity conveying pipe; according to the cutting fluid cooling device, the cutting fluid can be recycled, and the cooling capacity of the liquefied cutting fluid can be used for cooling the cutting fluid in the narrow opening, so that evaporation of the cutting fluid in the narrow opening is reduced.

The utility model relates to the technical field of mechanical detection, in particular to a slitting knife leaning amount detection device which comprises a supporting unit and a detection unit. Wherein a knife rest of the slitting knife is placed on the supporting unit. The detection unit is connected to the supporting unit and comprises a CCD sensor assembly, and the CCD sensor assembly is arranged towards the slitting knife so as to detect the knife leaning amount of the slitting knife. Compared with a manual visual inspection mode for determining the cutter leaning amount, the CCD sensor assembly is used for detecting the cutter leaning amount of the slitting cutter, the detection efficiency and the detection precision can be improved, and the product quality is guaranteed.

The utility model discloses a numerical control lathe machining device which comprises a blanking frame, a blanking channel is arranged in the blanking frame, a through opening communicated with the blanking channel is formed in the bottom of one side of the blanking frame, and movable limiting assemblies are arranged on the blanking frame and located on the two sides of the through opening. The numerical control lathe is movably provided with a tool rest assembly, the tool rest assembly is provided with at least one clamping sleeve, and the clamping sleeves are used for clamping products, located on the inner side of the through opening, of the blanking frame. The device is full-automatic in processing and high in production efficiency.

The utility model discloses a camellia oleifera grafting rootstock cutting device which comprises a fixing frame, a chopper down-cutting air cylinder is fixedly installed on the top of the fixing frame, the output end of the chopper down-cutting air cylinder penetrates through the fixing frame and is fixedly connected with a chopper air cylinder seat, and the top of the chopper air cylinder seat is fixedly connected with a connecting block. A Z-axis guide assembly is arranged between the connecting block and the fixing frame, a chopper forward-pushing air cylinder is fixedly installed on one side of the chopper air cylinder seat, a forward-pushing air cylinder driving rod is arranged on one side of the chopper forward-pushing air cylinder, and the forward-pushing air cylinder driving rod penetrates through the chopper air cylinder seat and is connected with an installation seat. Through the arrangement of the chopper downward-cutting air cylinder and the chopper forward-pushing air cylinder, after the oil-tea tree stock is cut, the chopper rest and the chopper can be separated from the oil-tea tree stock in a staggered mode, the space at the upper portion of the oil-tea tree stock is avoided, when the oil-tea tree stock cutting device is used for grafting, a scion wood feeding mechanism enables scion wood to be inserted into the oil-tea tree stock, and grafting work of oil-tea trees is facilitated.

The invention relates to the technical field of switch devices, in particular to a sulfur hexafluoride insulating ring main unit with a test head, which comprises a connecting cabinet fixedly connected to a cabinet body, the connector A is fixedly connected in the connecting cabinet; the mounting plate is fixedly connected in the cabinet body; the connector B is fixedly connected to the cabinet body; the mounting frame is fixedly connected to the mounting plate; the contact A is fixedly connected to the mounting frame; the test cabinet is fixedly connected to the cabinet body; the testing head is fixedly connected to the mounting plate; the contact B is fixedly connected to the mounting frame; the transverse frame is fixedly connected to the mounting plate; the tool apron is fixedly connected to the transverse frame; and the isolation knife is rotationally connected to the knife holder. According to the invention, the test cabinet is arranged inside, and the isolation knife is rotated to realize rapid switch-on and switch-off switching, so that the conventional test of the cable can be carried out without dismounting the cable head, the cable head does not need to be frequently plugged, the loss of related parts is reduced, and the stability of the whole power system is ensured.

The invention discloses a large-current environment-friendly ring main unit which comprises an isolating switch and a circuit breaker structure, the isolating switch is located above the circuit breaker structure, the isolating switch and the circuit breaker structure are fixedly connected, the isolating switch comprises a moving knife assembly, the moving knife assembly comprises a moving knife and a moving knife holder, the moving knife is rotationally connected with the moving knife holder, the moving knife is provided with segmented contacts, and the moving knife is connected with the circuit breaker structure. The structure of the conductive copper piece is optimized, the effective lap joint number between lap joint faces and the heat dissipation area are increased, the heat dissipation efficiency is effectively improved, and the 1250A * 1.1 temperature rise test requirement is met in dry air.

The invention relates to the field of hardware production and manufacturing, in particular to automobile hardware stamping part plate shearing equipment which comprises an operation table, a feeding plate is arranged on the operation table in an up-down sliding mode through a hydraulic power assembly, an upper blade is arranged on the feeding plate through an adjusting mechanism used for changing the inclination direction, and a lower blade is fixedly installed on the operation table. A linkage assembly in the adjusting mechanism is matched with the rotating part, the inclination direction of the upper blade is automatically changed after each time of shearing, a cutting edge uniformly participates in shearing operation in the whole length, excessive abrasion of a single position is avoided, the service life of the upper blade is remarkably prolonged, meanwhile, the material plate is prevented from being scratched, and the material plate is prevented from being scratched. The adjusting mechanism drives the tool rest plate to slide through the hydraulic cylinder, so that the upper blade gradually makes contact with a plate in a sliding cutting mode in the initial shearing process, local impact force is dispersed, damage of instantaneous loads to the blade is reduced, and the smoothness and stability of the shearing process are improved.

A shrink-clamping cooling device for a cooling of, in particular previously heated, tool holders comprises at least one cooling element which forms a cooling region for creating a heat-conductive contact with the tool holder that is to be cooled, whereinthat the cooling element comprises a contact switch, which is configured to detect at least a laying-in, and in particular a presence and / or a taking-out, of the tool holder that is to be cooled in the cooling region / out of the cooling region.

A controller of a machine tool determines in accordance with a machining program whether a first tool post is used to machine an unfinished workpiece. When the unfinished workpiece needs machining before terminating a continuous machining and when the controller determines that the first tool post is used to machine the unfinished workpiece W2, the controller simultaneously advances a first system and a second system in accordance with the machining program while preventing machining a workpiece held by the first spindle. When the controller determines that the first tool post is not used to machine the unfinished workpiece, the controller stops the first system and advances the second system in accordance with the machining program.

The invention relates to the technical field of textile processing, and discloses a tool rest mechanism of an oil glue compound machine for textile processing, the tool rest mechanism comprises a processing platform, the top of the processing platform is fixedly connected with a first support, four corners of the bottom of the processing platform are fixedly connected with electric suckers, and the bottom of the first support is provided with a cutting mechanism; the cutting mechanism comprises an electric telescopic rod, a transverse plate, a first cutter, a first sliding groove, a first sliding block, a transverse shaft and bristles. And through cooperative operation of an electric telescopic rod, a curved sliding rail, a rack, a gear and other parts, in the textile cutting process, efficient cleaning of chippings on the surface of the first cutter is achieved. When the electric telescopic rod drives the cutter to move up and down, the curved sliding rail and the second sliding block enable the bristles to move left and right, the rack is meshed with the gear to enable the bristles to rotate, the surface of the cutter is cleaned in all directions, chipping adhesion is avoided, the cutting precision is improved, and the problem that chippings on the surface of the cutter hinder cutting in comparison patents is solved.

The invention belongs to the technical field of disc tool magazines, and particularly relates to a disc tool magazine tool reversing device which comprises a tool rest box, a rotating disc is rotationally arranged in the tool rest box and connected with a rotating motor, a tool outlet is formed in the bottom of the tool rest box, and mounting frames distributed in an annular array mode are arranged on the outer side of the circumference of the rotating disc. Sliding blocks are slidably connected to the two sides of the mounting frame in a limiting mode and slide in the radial direction of the rotary disc in a limiting mode, a tool sleeve structure is rotationally connected between the two sliding blocks through a torsional spring, a rotary driving mechanism and a pushing mechanism are arranged at the positions, corresponding to the tool outlets, of the tool rest box, and the rotary driving mechanism pushes the tool sleeve structure to rotate. And the pushing mechanism downwards pushes the sliding block and the knife pouch structure. When the tool pouch structure is in a horizontal placement state, the horizontal extension distance of the tool bit is reduced so as to reduce the movement range of the tool bit to ensure the working safety, and the distance of the tool bit extending out of the tool outlet is increased when the tool bit is taken.

The invention relates to the technical field of packaging equipment, in particular to a winding and packaging device capable of binding two ends, which comprises a rack, a cutting and gathering mechanism and two end binding mechanisms, the cutting and gathering mechanism comprises a first linear driving device, a transverse moving seat, a cutting device, a second linear driving device and a gathering plate, and the end binding mechanism comprises a second base plate, a second rotating ring body, a second winding and rotating driving device, a cutter frame, a cutter, an intercepting plate, a clamping plate, a first driving device, a second driving device and a third driving device. The packaging tape is cut through the cutting device, the binding part is pushed to move through the gathering plate, so that the binding part covers the end of a material and coincides with the material in the axial direction of the material, the coincident position is bound by the adhesive tape released by the end binding mechanism, and therefore the end of the material is bound and fixed, and automatic binding of the two ends of a long screw rod can be achieved; binding quality is good, efficiency is high, and labor cost is saved.

The invention discloses a horizontal lathe for finish machining of a workpiece, and relates to the field of lathes, the horizontal lathe comprises a lathe body, a spindle box, chucks, a tool rest, a second electric push rod, a cooling chip removal assembly and an annular workpiece, the number of the chucks is two, the chucks are installed on the left side and the right side of the interior of the lathe body respectively, and the chuck on the left side is fixedly connected with an output shaft of the spindle box; the spindle box is fixedly installed on the left side of the inner wall of the lathe bed. Through cooperation of the annular workpiece, the chuck, the chuck jaws, the adjusting assembly and the driving motor, the chuck jaw adjusting effect in three directions is achieved through the arrangement of the adjusting assembly, the chuck adopts a three-jaw self-centering mode, the chuck rapidly and firmly clamps the annular workpiece, the chuck jaws are subjected to precise grinding, and the machining precision is improved. The clamping face is attached to the outer circle or the inner hole of the circular-ring-shaped workpiece, the chuck jaw is used for meeting the requirements of different circular-ring-shaped workpieces, automatic alignment and clamping are achieved, manual alignment errors are reduced, the coaxiality of the clamped circular-ring-shaped workpieces is guaranteed, and the clamping device is a core part for positioning and machining the circular-ring-shaped workpieces.

A machine tool capable of detecting the size of a threaded hole of a workpiece without shutdown comprises a machine tool shell, a machine head provided with a chuck, an automatic workpiece feeding device and a tool rest device are arranged in the machine tool shell, the tool rest device comprises a dragging plate driven by a motor, and the dragging plate is provided with a tool rest and an automatic detection device; the automatic detection device comprises a detection tool, the detection tool is connected with a rotating shaft, the rotating shaft is connected with a sensor through a connecting rod device, the sensor controls a machine tool to display a detection result by sensing the difference of rotating force output by the detection tool to the rotating shaft, and the detection tool comprises one of a thread plug gauge and a screw tap. According to the machine tool capable of detecting the sizes of the threaded holes of the workpieces without shutdown, the tool rest and the automatic detection device are installed on the carriage, cutting of the workpieces is completed through the tool on the tool rest, and then the sizes of the threaded holes of all the workpieces are detected through the automatic detection device.