1262results about "Auxillary equipment" patented technology

The invention relates to the technical field of machining, and discloses a lathe tool wear self-inspection alarm system which comprises a multi-source sensing module, an intelligent analysis module, a dynamic response module, an interactive display module and a self-adaptive energy supply module. The multi-source sensing module synchronously acquires the surface abrasion loss, the vibration spectrum and the acoustic emission signal of the cutter through an optical sensor, a capacitive sensor and an MEMS triaxial accelerometer, and outputs the surface abrasion loss, the vibration spectrum and the acoustic emission signal to the intelligent analysis module; and the intelligent analysis module performs fusion analysis on the multi-source data by adopting a mixed feature extraction and double-model decision mechanism. High-precision monitoring and dynamic evaluation of lathe tool wear are realized through optical, vibration and acoustic emission sensors of the multi-source sensing module in combination with mixed feature extraction and a double-model decision mechanism of the intelligent analysis module. By means of the mode of combining multi-dimensional monitoring and intelligent analysis, machining defects and equipment failure risks caused by tool abrasion can be reduced.

The invention relates to the technical field of numerical control lathe machining, in particular to a numerical control lathe cutting parameter optimization method and system. The method comprises the following steps: receiving a processing task for batch workpieces, dividing processing batches in the processing task, and determining a detection processing step; in the detection machining step, cutting process signals and machine tool machining parameters of a machine tool are collected and detected in real time; based on the cutting process signals and the corresponding machine tool machining parameters, an expected stable signal interval is dynamically established, and transient impact events are recognized and quantified; performing statistics and normalization processing on the transient impact events to generate risk assessment information; sharing risk assessment information with other machine tools in a machining batch range; and according to the risk assessment information, cutting parameters of the subsequent machining steps are adjusted in advance, and after the pre-adjustment is completed, machining of the batch of workpieces is executed. The problem that production efficiency and stability are reduced due to the fact that information of an existing numerical control lathe is not shared in a multi-machine-tool cooperative machining scene is solved.

The invention provides efficient integrated machining equipment for automobile hubs, and relates to the technical field of hub machining, the efficient integrated machining equipment comprises a turning numerical control table, a hydraulic expansion mandrel, a turning assembly and a turning rack, the turning numerical control table is fixedly installed at the side end of the turning rack, the hydraulic expansion mandrel is fixedly installed on the turning numerical control table, and the hydraulic expansion mandrel is fixedly installed on the turning rack. The turning assembly is fixedly installed on the turning machine frame, a recycling mechanism for recycling waste liquid is arranged on the turning machine frame, a processing mechanism for processing the waste liquid is arranged on the turning machine frame, and the recycling mechanism comprises a turning protective cover, a cooling spray head and a V-shaped guide plate. According to the device, the V-shaped guide plate, the coarse separation box, the stainless steel wire net, the recycling box, the filtering layer and the scrap box are matched, and functional modules such as waste liquid diversion recycling, preliminary separation, metal scrap adsorption, scraping and collection, waste liquid fine filtering and waste scrap temporary storage are compactly integrated on turning equipment; and extra arrangement of a huge and dispersed external system for waste treatment is avoided.

The application discloses a kind of through tool turret-lathe tool ultra-low temperature medium internal spray type cooling numerical control lathe, including inclined bed lathe host, ultra-low temperature medium heat insulation transmission control system, ultra-low temperature medium internal spray type tool turret and ultra-low temperature medium internal spray type lathe tool.The ultra-low temperature medium internal spray type tool turret and ultra-low temperature medium internal spray type lathe tool realize that ultra-low temperature medium is transported to the cooling of tool tip by the inner cavity channel of tool turret-tool, solve the integration problem of liquid nitrogen internal spray type cooling function and conventional lathe structure;Ultra-low temperature medium internal spray type lathe tool tail end uses telescopic transmission pipe, realizes the directional supply of ultra-low temperature medium to working lathe tool when automatic tool changing;Ultra-low temperature medium transmission pipeline passes through from the spindle center of ultra-low temperature medium internal spray type tool turret, and adopts vacuum heat insulation structure, without affecting original structure, ensure the heat insulation transmission of medium;Ultra-low temperature medium control system and the integration of numerical control machine tool, realize the stable controllable of pressure and flow in ultra-low temperature medium transmission process.

The invention relates to the technical field of shaft part machining devices, in particular to a turning device for metal shaft part machining, which comprises a machine tool body, a guide rail and a chuck, a frame body is arranged on the guide rail, one end of the frame body is slidably connected with a sleeve, one end of the sleeve penetrates through the frame body and extends to the outside of the frame body, and the chuck is arranged on the guide rail. A clamping mechanism is arranged at the end, located outside the frame body, of the sleeve, a material leaking hole is formed in the lower surface of the sleeve and communicates with the frame body, a strip-shaped groove is formed in the upper surface of the sleeve, and a discharging assembly is arranged in the strip-shaped groove; according to the metal shaft cutting device, the clamping assembly, the discharging assembly, the buffering assembly and the like are arranged and used in cooperation, when the metal shaft is cut off, the clamping assembly can clamp the metal shaft, in this way, when the metal shaft is cut off, the metal shaft cannot directly fall off, and then the problem that the metal shaft with huge kinetic energy directly falls off and is prone to damage is avoided.

The invention provides an environment temperature compensation method and system in the turning process and electronic equipment, and relates to the technical field of turning machining.The method comprises the steps that temperature data of a machine tool at a preset position are obtained and serve as environment temperature data; according to the environment temperature data and geometric structure parameters of machining equipment of the machine tool, the current thermal deformation amount of a machine tool structural part corresponding to the machined workpiece and the current thermal deformation amount of the machined workpiece are obtained; through a long-short-term memory fusion prediction model, prediction is carried out in combination with the historical thermal deformation of the machined workpiece, and future thermal deformation of the machine tool structural part and the machined workpiece in a future preset time period is obtained; and further generating a cutter servo shaft compensation amount, a main shaft hydraulic pre-tightening force compensation amount and a cutting fluid temperature control compensation amount, generating a compensation program according to the compensation amounts, and inserting the compensation program into a machining program of a machined workpiece to complete real-time compensation. According to the invention, through real-time monitoring, dynamic prediction and multi-dimensional compensation, the precision and effect of environment temperature compensation are significantly improved.

The invention belongs to the technical field of flange machining, and particularly relates to a stainless steel flange turning device which comprises a base frame, a turning structure is arranged at the upper end of the base frame and comprises a lifting plate, the lifting plate is arranged at the upper end of the base frame, and an end face turning tool, an outer circle turning tool and a grooving tool are arranged on the surface of the lifting plate. And a clamping structure is arranged at one end of the turning structure. By arranging the adjusting structure, after a flange piece is turned, the opening plate can move towards the inner wall of the center of the flange piece, so that the flange piece is fixed by the opening plate, then the transfer clamp can move to wrap the flange piece, at the moment, a motor located on one side of the transfer clamp is started, the flange piece can be clamped, and the flange piece can be fixed. And then in the reset process of the telescopic air cylinder, the flange piece can be transferred to be far away from the turning structure by the transfer clamp, so that the flange piece can be automatically taken out after turning, and the taking-out work of the flange piece can be continuously carried out through the reciprocating work of the telescopic air cylinder.

The invention discloses a magneto-rheological self-adaptive locking clamp for turning and a machining method of the magneto-rheological self-adaptive locking clamp, and belongs to the technical field of precision workpiece machining equipment. Comprising a flexible contact shell making contact with a workpiece, a locking unit arranged at the outer end of the flexible contact shell and an outer shell arranged outside the locking unit. The locking unit comprises an axial locking assembly and a radial pushing assembly, and the axial locking assembly is a self-adaptive locking assembly with an integrated magnetic circuit; the radial pushing assembly is a rigid pushing assembly. By means of the clamp, high-precision, lossless and self-adaptive locking of workpieces is achieved, and clamping deformation of thin-wall and special-shaped workpieces is effectively restrained. Through a composite mechanism of magneto-rheological locking and mechanical rigid pushing, the dynamic stability of the machining process is remarkably enhanced, meanwhile, it is ensured that the locking force is quick in response, low in energy consumption and stable in long-term work, and the machining quality and efficiency and the reliability of the clamp are improved.

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.

The invention relates to the technical field of turning equipment, and discloses turning equipment for a precision bearing assembly, which comprises two symmetrically arranged chucks, a rotation driving assembly for driving the chucks to rotate, a driving base for driving the chucks to translate, and a cutting mechanism for cutting a workpiece, a plurality of first sliding grooves are formed in the chuck in the radial direction, the first sliding grooves are formed in the chuck in a penetrating mode, first sliding bases are slidably installed in the first sliding grooves, and sliding type fixing rods are arranged in the first sliding bases in a penetrating mode; through the arrangement of composite positioning of the axial adjustable sliding type fixing rod and the two-way double chucks, adaptive clamping of long cylindrical blanks with different axial lengths is achieved, and the fixing mode that inner hole multi-point supporting and end face pressing are combined is adopted; the problems of blank local deformation, rotation eccentricity and low coaxiality caused by a traditional clamping mode are effectively solved.

The invention is suitable for the technical field of cutout cock valve balls, and provides an integrated valve ball machining device for a cutout cock, the integrated valve ball machining device for the cutout cock comprises a detection assembly, and a repairing assembly is arranged on one side of the detection assembly; the detection assembly comprises a detection processing machine tool, a supporting frame, a driving motor, a driving table, a supporting plate, a first limiting strip, a second limiting strip, a fixing piece and a detection piece. The repairing assembly comprises a bearing plate, a sliding rail, an electric sliding table, a transverse plate, an adjusting air cylinder, a displacement plate, a vertical plate, an extension column and a repairing cutter. Through the design of the detection assembly, the surface of the turned spherical valve element can be subjected to circular surface detection, so that the surface quality of the spherical valve element meets the standard, the machining precision of a product is improved, the service life of the product is prolonged, and the production efficiency and the quality stability of the product are improved.

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 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 invention relates to the technical field of eccentric shaft machining lathes, in particular to an eccentric shaft machining lathe with an eccentric center structure, which comprises a lathe main body, a fixed frame is fixedly connected to one side of the lathe main body, a movable frame is arranged on the fixed frame in a sliding fit manner, and a rotating seat is rotatably connected to the movable frame; a transmission mechanism is rotationally connected to the rotating seat, a stabilizing ring frame is rotationally connected to the rotating seat, a follow-up rotating ring is rotationally connected to the stabilizing ring frame, an eccentric block center mechanism is fixedly connected to the follow-up rotating ring, and an eccentric shaft is clamped and fixed to a three-jaw chuck on the lathe body; the eccentric block center mechanism is arranged on the follow-up rotating ring, the two angle-adjustable center plates abut against the fan-shaped eccentric block on the eccentric shaft, when the eccentric shaft rotates for machining, the fan-shaped eccentric block on the eccentric shaft is more stably and accurately supported, vibration, unbalance and deformation are reduced, and the machining precision and quality are improved.

A machine tool has a front spindle that rotatably holds a bar, a front spindle drive motor that rotationally drives the front spindle, an encoder that detects a rotation angle of the front spindle drive motor, a rotary guide bush that is installed on a guide bush support in front of the front spindle to support the bar extending from the front spindle while allowing the bar to rotate around a rotation axis and move in a rotation axis direction and rotate synchronously with the front spindle, a back spindle that is arranged opposite to the front spindle and rotatably holds the bar, a back spindle drive motor that rotationally drives the back spindle, and a controller that controls operations of the front spindle and the back spindle.

An efficient chatter cutting method for a difficult-to-machine material is provided, relating to the technical field of cutting processing. The method includes the following steps: installing a chatter tool bar on a machine tool, starting the machine tool, and inducing self-excited chatter for chatter cutting through cutting energy of a tool system; during chatter cutting, exciting the chatter tool bar to induce stable vibration, making the tool form a ratchet-shaped motion trajectory, the ratchet-shaped motion trajectory includes processes that the tool is pressed on a surface of a workpiece and the tool is separated from the surface of the workpiece, and forming a ratchet-shaped surface morphology on the surface of the workpiece; and during separation of the tool from the surface of the workpiece, enabling cutting fluid to enter a separated cutting zone for cooling and lubrication, and reducing cutting temperature.

The invention discloses a turning machine tool and a turning method, and belongs to the technical field of machining. The workpiece main shaft is connected to the Z-axis guide rail in a sliding mode, and the Z-axis guide rail is fixed to the lathe bed; a rotary carriage and an X-axis guide rail; the X-axis machining tool is connected to the X-axis guide rail in a sliding mode; the rotation center line of the workpiece spindle and the rotation center line of the rotary table are perpendicular and coplanar, the X axis deviates from the rotation center line of the rotary table, and the included angle between the Z axis and the X axis is adjusted by rotating the rotation carriage along the B axis. The turning method comprises the steps that the X-axis and the Z-axis are turned at a fixed angle, the B-axis is located at a fixed position, or the X-axis, the Z-axis and the B-axis are turned in a linkage mode. Multi-axis linkage can be carried out, the spatial position of a tool nose tool is accurately calibrated, high precision and high quality of special-shaped surface machining are ensured, the special-shaped surface machining device is suitable for multi-configuration feature machining of special-shaped surfaces, and high-precision cutting under various process requirements of curved surface turning, milling and the like is achieved.

A debris collection assembly includes a jig and an adapter insert. The jig includes a front wall and a back wall opposite the front wall. The front wall defines an aperture therethrough. The back wall defines an adapter opening that aligns with the aperture. The jig includes a vacuum port and defines an interior cavity that fluidly connects the aperture, the adapter opening, and the vacuum port. The adapter insert is removably loaded through the adapter opening into the interior cavity of the jig. The adapter insert defines an orifice sized to receive a drill bit and allow the drill bit to extend through the aperture in the front wall to drill into a work piece. Negative pressure at the vacuum port draws airflow through the interior cavity and captures debris generated from drilling.

A lathe center frame coaxial precision measuring device belongs to the technical field of machine tools and comprises a lathe, a chuck, an adjusting sleeve, a detection rod, a center frame, a tail frame and a detection device, the chuck is in transmission connection with a spindle of the lathe, the adjusting sleeve is fixedly connected with the chuck, one end of the detection rod extends into the adjusting sleeve, the detection rod is located between the chuck and the tail frame, and the center frame is installed on the lathe. The center frame is located between the chuck and the tail frame and corresponds to the detection rod, and the detection device is movably installed on the lathe. The utility model has the beneficial effects that when the adjusting sleeve is arranged to calibrate the detection rod and measure the precision of the center frame, the adjusting sleeve and the center frame support the detection rod, the influence of a tail frame in the detection process is eliminated, the coaxial precision of the lathe spindle and the center frame can be measured through visual metering, and the measurement is more accurate.

The invention discloses rotary clamping equipment for a medium-caliber seamless steel pipe for fluid conveying and a using method, and relates to the technical field of steel pipe machining. The rotary clamping equipment for the seamless steel pipe for conveying the medium-caliber fluid comprises a rack, a steel pipe, a machine box and a supporting frame, and further comprises a chuck assembly which is coaxially and rotatably installed on the machine box and the supporting frame and used for fixing the two ends of the steel pipe. The double-row cylindrical self-aligning bearing is used for supporting the main shaft sleeve, passive self-adaptive self-aligning of the main shaft sleeve is achieved, a chuck assembly at the driving end can follow the instantaneous rotation axis of actual bending change of a steel pipe in real time, and a workpiece is not forced to conform to the theoretical axis of equipment; the problems of spiral line contact between the clamping jaw and the surface of the steel pipe, local stress concentration and periodic pulsation attenuation of clamping force caused by forced centering under traditional rigid clamping are solved, it is guaranteed from the source that the clamping jaw and the outer edge of the steel pipe always keep stable and uniform surface contact in the initial clamping stage and the rotating process, and axial movement is eliminated.

The invention relates to the field of feeding lathes, and discloses a multi-directional machining system for a feeding lathe, which comprises a rack used for supporting a whole device, a main shaft is arranged on the inner wall of the rack, a frame body is arranged on the upper surface of the rack, and a movable turning tool is arranged on the upper surface of the rack; the lateral machining mechanism is arranged on the side, away from the movable turning tool, of the upper surface of the rack; and the opposite machining mechanism is arranged on the side, away from the main shaft, of the upper surface of the rack, is used for machining the workpiece and can drive the workpiece to move, the opposite machining mechanism comprises a first moving rail, and a second moving rail is installed at the upper end of an output shaft of the first moving rail. According to the machining device, the auxiliary shaft assembly is arranged in the object machining mechanism, in the machining process, a workpiece can be pulled out of the interior of the main shaft through an auxiliary shaft, then the workpiece can be cut off through a turning tool, and then the workpiece can be driven to be close to the third power head through the auxiliary shaft to achieve machining of a shielding area.

The invention discloses a positioning method and device for machine vision assisted numerical control lathe workpiece axis alignment. The positioning method comprises the steps that pre-clamping and initial positioning are conducted on a to-be-machined part; obtaining point cloud data of the three-dimensional contour of the to-be-machined part through a visual scanning assembly; based on the point cloud data of the three-dimensional contour, the axis position of the to-be-machined part and the deviation value between the axis position and the rotating axis of a main shaft of the numerical control lathe are calculated; and the target clamping position of the to-be-machined part is determined based on the deviation value, so that centering clamping and machining are achieved. The motion path of the visual scanning assembly is accurately controlled, the shaft part can be comprehensively scanned to obtain three-dimensional contour data of the shaft part, the axis line is determined through calculation, then the clamping jaw is accurately adjusted and controlled, the axis line of the part coincides with the axis line of the lathe spindle, centering clamping and driving machining of the part are completed, and the machining efficiency is improved. Unmanned intelligent clamping alignment is achieved, and the part clamping quality and efficiency are remarkably improved.

The invention belongs to the technical field of numerical control lathes, and discloses a numerical control lathe which comprises a lathe body, a gear box and a chuck assembly, the gear box is installed at the left end of the lathe body and used for controlling a spindle to rotate and providing energy for work of other parts, and the chuck assembly is installed on the outer side of the output end of the gear box. The chuck assembly comprises a main chuck fixedly connected with the output end of the lathe bed, the inner side surface of the main chuck is slidably connected with a clamping jaw, a bevel gear ring is arranged in the main chuck, the inner side surface of the main chuck is connected with a limiting chassis in a clamped mode, and the inner outer side surface of the limiting chassis is rotationally connected with the inner side surface of the bevel gear ring. The inner side surface of the main chuck is rotationally connected with an adjusting threaded column, the outer side surface of the adjusting threaded column is in threaded connection with the inner side surface of the clamping jaw, and the problems that a machined part is loosened in clamping and inconvenient to operate in the feeding and discharging process are solved.

The invention discloses a high-precision numerical control lathe and a dynamic compensation control method thereof. The high-precision numerical control lathe comprises a lathe body, a spindle box is installed at one end of the upper side of the lathe body, a spindle is rotationally installed in the spindle box, a chuck is installed at one end of the spindle, a linkage mechanism is installed on the lathe body and located on one side of the chuck, a tool rest is installed on the linkage mechanism, and a tool is installed on the tool rest. A temperature detector is installed in the spindle box, at least two temperature sensors are installed on the cutter, tensile strain gauges are further installed on the top and the side face of the cutter respectively, an X-axis encoder is installed at the end of a driving lead screw of the X-axis sliding seat, and a Y-axis encoder is installed at the end of a driving lead screw of the Y-axis sliding seat. Real-time sensing, intelligent prediction and closed-loop compensation of dynamic disturbance such as thermal deformation, tool abrasion and vibration are achieved, the machining precision, stability and self-adaptive capacity of the numerical control lathe under the complex working condition are remarkably improved, and the numerical control lathe is suitable for precise and efficient turning machining of high-end rotary parts.

The machine tool system has a spindle that can move in an axial direction of a bar, a guide bush that supports the bar, a first tool post to which a first tool for machining a tip end part of the bar supported by the guide bush is attached, a pusher capable of biasing the bar toward the tip end side of the bar, a first control apparatus that controls operations of the spindle and operations of the first tool post, and a second control apparatus that controls operations of the pusher, wherein the first control apparatus includes a bar retraction mode in which the first tool post is caused to machine the tip end of the bar in a state where the bar is gripped by the spindle, the spindle is retracted and the bar is extracted from the guide bush, and the second control apparatus is caused to release the bias applied by the pusher and release the grip of the spindle on the bar.

The invention relates to the technical field of machining, in particular to a thin-wall shell part flat end face clamp which comprises a positioning assembly, a clamping assembly and a clamping assembly. And the plurality of holding mechanisms are arranged on the positioning part and are used for holding the annular process table on the inner wall of the workpiece. The positioning assembly comprises a base disc used for being installed on a faceplate of a lathe spindle; the core shaft is vertically mounted in the center of one end surface of the base disc; the auxiliary supporting frame is installed on the side face of the mandrel and used for being supported on the inner surface of a workpiece; the first top disc is mounted at the end part of the core shaft, and the base disc and the first top disc are respectively positioned at two ends of the core shaft; the second top disc is used for being matched with a live center of a lathe tailstock, and the second top disc and the first top disc are used for being clamped on the two side faces of the bottom wall of the workpiece. Error compensation assemblies are installed on a radial sliding assembly and an outer side sliding assembly of the enclasping mechanism correspondingly and used for being clamped on the two side faces of the annular process table.

The furnace roller rough machining turning equipment comprises a rack, a spindle box is arranged at one end of the top of the rack, a tailstock is arranged at the other end of the top of the rack, and three-jaw chucks used for fixing a furnace roller are arranged on the opposite sides of the spindle box and the tailstock correspondingly. A turning mechanism is further arranged at the position, located between the spindle box and the tailstock, of the top of the rack, the furnace roller turning machine further comprises a movable base, a mounting plate, a furnace roller supporting mechanism and a furnace roller axial limiting mechanism, the mounting plate is arranged above the movable base, and position adjusting structures are arranged between the mounting plate and the movable base and between the movable base and the rack. The furnace roller supporting mechanism is mounted at the top of the mounting plate and used for supporting and fixing the furnace roller, the furnace roller supporting requirements of various specifications can be met, the supporting device does not need to be frequently replaced, the universality and applicability of equipment are improved, and the equipment cost and the use cost are reduced.

Clamping device (S) for a workpiece (W), with a) a sleeve (2) for exerting a clamping force on the workpiece (W), which is displaceably guided and supported by a spring element (34), b) a self-locking feed device (3) for the spindle sleeve (2), c) an electric motor (6) for driving the feed device (3), d) an electrical measuring device (42) for continuously recording the actual value of the compression travel (344) of the spring element (34), and e) a control system (7) which e1) determines a first actual value of the clamping force of the sleeve (2) from the current of the motor (6) and stops the motor (6) when a target value of the clamping force is reached, and e2) determines a second actual value of the clamping force of the sleeve (2) from the actual value of the compression travel (344) achieved in this process and switches off the motor (6) if the value matches the target value and / or the first actual value of the clamping force of the sleeve (2).

The invention provides a positioning tool for motor shaft machining, and relates to the technical field of motor shaft positioning, the positioning tool comprises a telescopic rod which is telescopically and slidably connected in a tail frame, a driving wheel is rotatably mounted on the telescopic rod in a sleeving manner, a plurality of middle wheels are mounted on the driving wheel in a meshed manner, and counterweight wheels are mounted on the outer sides of the plurality of middle wheels in a meshed manner; the double-end clamping system comprises a plurality of middle wheels, each middle wheel is rotationally provided with a middle rod, the multiple middle rods are provided with external discs, the balance weight wheel is provided with a friction sleeve, and multiple friction blocks are installed in the friction sleeve in an attached mode, the double-end clamping system changes the fixing mode of traditional motor shaft machining, and a tightening sleeve device is designed on a machine tool tail frame; the two ends of the workpiece are positioned and fixed in combination with clamping of the spindle chuck, the overall rigidity of the workpiece is remarkably improved through the double-end coaxial fixing mode, and deformation in the machining process is effectively reduced.