24856results about "Positioning apparatus" patented technology

The invention discloses a control method and equipment suitable for a rotary turn-over clamp of a numerical control milling center, and relates to the technical field of numerical control machining. The clamping force is optimized through the multi-source sensing and digital twinning technology, and workpiece deformation is prevented; thermal compensation and an error transfer chain model are integrated, the turnover angle is accurately corrected, and error accumulation is restrained; real-time comparison, traceability and self-adaptive adjustment in the machining process are achieved through digital twin pre-verification and multi-sensor closed-loop monitoring; the problems of out-of-tolerance of precision and batch consistency caused by unstable clamping, thermal deformation and error transmission in multi-surface milling of high-precision parts are solved, and the precision, reliability and process adaptability of complex part machining are remarkably improved.

The invention relates to the technical field of machining, in particular to a flexible clamp for turning a variable-diameter thin-wall cylinder component and a turning method. The flexible clamp comprises a supporting mechanism and a flexible supporting clamp mechanism which are detachably connected, the supporting mechanism comprises a supporting rod, the supporting rod is detachably connected with the flexible supporting clamp mechanism, and the flexible supporting clamp mechanism comprises a plurality of first supporting assemblies arranged in the circumferential direction. The flexible supporting clamp mechanism can be inserted into the variable-diameter cylinder section of the variable-diameter thin-wall cylinder component in the axial direction of the variable-diameter thin-wall cylinder component, and the first supporting assembly is adjusted to extend in the radial direction so that the first supporting assembly can abut against the inner wall of the variable-diameter cylinder section. The flexible supporting clamp mechanism can effectively avoid workpiece deformation caused by lateral component force, and the flexibility of the flexible clamp is improved. In the machining process, the elastic deformation and vibration of the barrel are controlled within a very small range, and the machining precision is remarkably improved.

The invention relates to the technical field of tool switching, and discloses a tool switching method of a CNC tool magazine. The method comprises the following steps: performing three-dimensional laser scanning on the surface of a cutter in a CNC machine tool to obtain a wear tiny heterogeneity index; performing association mapping on the geometric features of the workpiece and the tool wear mode to obtain feature data of a cutting boundary layer; executing cutter state evaluation calculation to obtain cutter health state indexes and inter-cutter collaborative wear relation data; switching evaluation function calculation is executed in the tool state space, and a first switching time sequence decision sequence is obtained; and the first switching time sequence decision sequence is input into a CNC tool magazine management system, and automatic tool switching operation is executed by controlling a tool replacement mechanical arm according to the calculated optimal intervention angle. The cutter switching time is greatly shortened, the machining efficiency is improved, and meanwhile the consistency and stability of the machining quality are ensured.

A placing seat is fixed to the upper portion of a base through a plurality of supporting columns in a suspended mode, a plurality of linear sliding grooves distributed in an annular array mode are formed in the placing seat, and an inner supporting piece and an outer pressing piece are installed in each linear sliding groove; a clamping push plate is connected between the multiple supporting columns in an up-down sliding and sleeving mode, a plurality of pushing pieces are installed on the clamping push plate, the pushing pieces are in sliding connection with the inner supporting piece and the outer pressing piece, and a plurality of position adjusting mechanisms distributed in an annular array are installed below the containing base in a sliding mode; a plurality of inner supporting pieces and outer pressing pieces which are distributed in an annular array mode are arranged above the containing base, two positioning rollers on the inner supporting pieces and the outer pressing pieces can synchronously move in the opposite directions from the inner side and the outer side, the inner wall and the outer wall of a workpiece are clamped at the same time, clamping force appears in pairs, radial force is offset, the workpiece mainly bears uniform centripetal force, and the deformation risk is greatly reduced.

The invention belongs to the technical field of fastener machining equipment, and discloses bolt tail integrated machining equipment which is characterized in that a material conveying rail comprises a first rail and a second rail, a material containing gap is formed between the first rail and the second rail, a workpiece moves in the material containing gap, the material conveying rail is provided with a station rail section, and the station rail section is connected with the first rail and the second rail. The station rail section and the machining station are correspondingly arranged, and in the station rail section, the position, relative to the horizontal plane, of the first rail is higher than the position, relative to the horizontal plane, of the second rail; when the workpiece moves to a machining station, the movable positioning tool acts to clamp the workpiece between the first positioning groove and the second positioning groove, so that the machining mechanism machines the workpiece; the action direction of the jacking mechanism is parallel to the rail surface of the conveying rail, and the machining axis of the machining mechanism is perpendicular to the action direction of the jacking mechanism. Aiming at tail machining of aerospace fasteners, the machining precision can be guaranteed, the process time can be shortened in a single process or a continuous process, and batch production is achieved in an assembly line mode.

The invention discloses a mechanical part pre-deformation clamping process method based on simulation analysis, and relates to the technical field of mechanical manufacturing. The method comprises the following steps that S1, a design drawing, material characteristic parameters, blank size specifications and technical parameters of a clamp system of a to-be-machined part are collected; according to the method, an integrated simulation model of a part, blank and clamp system is constructed, blank key parameters and the constraint relation of all parts are fused, multi-field coupling simulation is combined, the theoretical deformation field pre-judgment precision is greatly improved, reliable data support is provided for pre-deformation design, a target compensation curved surface is generated through a geometric inversion algorithm, and the pre-deformation design precision is improved. By matching with a pre-deformation clamp with an adjusting mechanism, reverse pre-deformation is realized, differences of different batches of blanks are adapted, machining and rebound deformation are effectively counteracted, simulation and process parameters are corrected through a detection result by means of a closed-loop optimization mechanism, machining precision stability is guaranteed, trial cutting cost and rejection rate are reduced, and the method is suitable for machining of various easily-deformed parts.

The invention belongs to the technical field of automobile part machining, and particularly relates to a double-shaft numerical control deep hole drilling machine for automobile part machining, which comprises a base, two groups of movable frames are arranged above the base, machining shafts for performing deep hole drilling on a long shaft are arranged on one sides of the movable frames, and the two groups of machining shafts rotate in opposite directions; a fixing support is fixedly connected to the upper portion of the base, a clamping assembly for clamping and limiting a long shaft is arranged below the fixing support, the long shaft is positioned and clamped through movement of a plurality of sets of telescopic clamping rods, deep hole machining can be conducted on the shaft through a drill rod installed on a machining shaft, and in addition, the machining efficiency is improved. And through the arrangement of the auxiliary assembly, the axial extrusion force generated during drilling machining of the long shaft can be reduced to a certain extent, the situation that the long shaft is bent and even broken in the machining process is avoided, and the stability of double-shaft deep hole machining of the long shaft can be effectively improved.

The invention discloses a horizontal five-axis turning and milling composite center with a self-adaptive matching system. The horizontal five-axis turning and milling composite center comprises a tool turret, a boring tool mechanism, a tool changing area and a control system. A radio frequency identification reading device is arranged in a tool changing area of the tool turret and the boring tool mechanism, and an RFID chip tag is attached to the outer surface of each tool and used for storing tool serial numbers, specifications and length compensation parameters. And the control system realizes self-adaptive matching and sequential error correction of the cutter and the working procedure through radio frequency identification. The tool changing area is provided with a visual monitoring assembly which comprises a plurality of sets of industrial cameras, an adjustable light source and a structured light stripe illumination module and is used for detecting the clamping posture, the abrasion state and the type of a tool. The system has self-learning and digital twinning simulation functions, and can simulate the motion trail of the cutter and predict the interference risk before the cutter is changed. According to the method, integrated control over automatic tool recognition, posture correction, abrasion detection and path prediction is achieved, and the tool changing precision, the operation stability and the automation level of the horizontal five-axis turning and milling composite center are remarkably improved.

The invention discloses a turning machine tool for continuous machining, and belongs to the technical field of turning machine tools, the turning machine tool comprises a machine tool body, a spindle box is arranged on the machine tool body, a rotating assembly used for clamping a plurality of workpieces is connected to the spindle box, the workpieces are arranged in an annular array, and a connecting assembly is sleeved with the output end of the spindle box. According to the lathe, the multiple workpieces to be machined are turned under the same machining condition, the consistency of the machining size, the shape and the surface quality can be guaranteed, when the multiple workpieces to be machined are continuously machined, the temperature of the lathe body and the temperature of the chuck are relatively stable, and the machining efficiency is improved. And the influence of thermal deformation caused by temperature change on the machining precision is reduced, and the operation frequency and the working intensity of operators can be reduced through batch clamping and unloading, so that the labor cost is reduced, the operators can complete more machining tasks in a shorter time, and the labor productivity is improved.

The invention relates to the technical field of machining automation control, and discloses an intelligent tool changing decision-making method based on tool wear perception, which comprises the following steps: acquiring real-time state data of a tool through vibration, acoustic emission, force and temperature sensors, and fusing features of a multi-modal graph neural network to obtain tool wear feature data. And inputting the parameters into a Bayesian decision network, optimizing a tool changing strategy by using a dynamic probabilistic reasoning structure, and generating decision optimization parameters. And a multi-target tool changing optimization model with the highest machining efficiency and the longest service life of the tool as targets is constructed, and an optimal tool changing strategy is determined by adopting an improved particle swarm algorithm. Based on this, a hierarchical decision control model is established and comprises a global evaluation layer, a dynamic adjustment layer and an execution control layer, and intelligent control of tool changing action is realized. In addition, a self-healing control module is embedded in the system to deal with abnormal wear of the cutter. The machining efficiency is improved, the service life of the cutter is prolonged, the machining quality is guaranteed, and intelligent development of machining is promoted.

The invention belongs to the technical field of tool magazines, particularly relates to a disc type tool magazine with a chain type radial servo chain, and provides the following scheme aiming at the problems that when a tool sleeve is replaced, cuttings and cooling liquid can be carried to enter movable parts such as a locking mechanism in the tool sleeve, so that the mechanism is inflexible in action and blocked, and normal grabbing, releasing and locking of the tool are influenced. Comprising a base body, one side of the base body is fixedly connected with a disc, an index plate is arranged on the base body, and an assembly part is arranged on one side of the base body; and the driving circular pipe is arranged on one side of the assembly part. According to the disc type tool magazine with the chain type radial servo chain, the problem of mechanism clamping stagnation caused by invasion of cuttings and cooling liquid is fundamentally solved through the pre-cleaning module and the positioning auxiliary module, pollution prevention is deeply integrated into the tool changing process, the high tool changing efficiency is maintained while the cleaning effect is ensured, and the tool changing efficiency is improved. And the reliability and the service life of the tool magazine in high-speed machining are remarkably improved.

The invention discloses a horizontal eight-axis five-linkage turning and milling composite machine tool based on a hybrid robot, and belongs to the technical field of high-end equipment manufacturing. According to the technical scheme, the horizontal eight-axis five-linkage turning and milling composite machine tool based on the hybrid robot comprises a machine tool body, and a tool turret mechanism, a workpiece fixing mechanism and a hybrid robot mechanism are sequentially arranged on the side of the machine tool body from bottom to top; the tool turret mechanism comprises a left lower tool turret assembly and a right lower tool turret assembly which are symmetrically arranged on the two sides of the machine tool body. Eight-axis five-linkage machining is achieved through cooperative movement of the symmetrical tool turret assembly and the lifting control mechanism, the self-adaptive supporting assembly and the hybrid robot mechanism are combined, and the problems that a traditional machine tool is insufficient in linkage capacity, poor in workpiece supporting stability and low in automatic cooperative efficiency are solved; the multi-axis linkage machining center has the advantages of being high in machining efficiency, high in supporting stability, excellent in multi-axis linkage precision and outstanding in automatic cooperation capacity.

The invention provides a hydraulic turnover machining clamp for a vertical machining center, belongs to the technical field of machining clamps, and solves the technical problems that an existing machining clamp cannot turn over and cannot be adjusted at multiple angles and the like. Comprising an arc-shaped overturning machine frame and a hydraulic driving mechanism, an overturning mechanism is arranged on the arc-shaped overturning machine frame in a sliding mode, an overturning worm is rotationally arranged below the arc-shaped overturning machine frame and is in transmission connection with the hydraulic driving mechanism, and the overturning mechanism is provided with two fixing base mechanisms arranged in a left-right symmetry mode and two lifting fixing mechanisms arranged in a front-back symmetry mode. A double-shaft hydraulic push rod is arranged between the two fixing seat mechanisms, rotating mechanisms are arranged at the upper ends of the fixing seat mechanisms, and clamping mechanisms are arranged on the rotating mechanisms. According to the multi-face turning and clamping device, stable hydraulic turning and multi-angle adjustment can be achieved, multi-face machining is facilitated, accurate positioning can be achieved, the machining precision can be guaranteed, rotating face changing and stable clamping can be achieved, manual assembly errors are reduced, and the efficient and accurate part machining requirements are met.

The invention provides a cutting device for valve pipeline machining, and relates to the technical field of metal cutting. The cutting device for valve pipeline machining comprises a machine cabinet, two roller shaft conveyors are symmetrically arranged at the top of the machine cabinet, and angle adjusting assemblies are jointly installed between the two roller shaft conveyors and the machine cabinet; a support matched with the cabinet is arranged on one side of the outer surface of the cabinet, and three mounting frames are arranged at the bottom of the support. Through the integrated lifting type cutting assembly and the groove milling cutter on the telescopic machine box, pipeline cutting and groove forming are synchronously completed in one-time clamping, and the problem of repeated positioning caused by step-by-step machining in a traditional technology is solved. Especially for a thick-wall pipe or a high-alloy steel pipe, the coaxiality of the cutting end face and the groove machining face is ensured through cooperative clamping of the fixed roller and the wingspan type auxiliary roller, the precision of the valve pipeline butt joint face is remarkably improved, and the industrial scene with the high sealing performance requirement is met.

The invention relates to the technical field of gang drills, in particular to a numerical control gang drill device which comprises a machine tool body, a telescopic assembly is arranged in the machine tool body, the output end of the telescopic assembly faces downwards and is connected with an extrusion block, and a storage plate is arranged at the position, below the telescopic assembly, in the machine tool body. One side of the machine tool body is connected with a gang drill plate through an air cylinder, and the side, facing the machine tool body, of the gang drill plate is evenly connected with a plurality of through drill seats. According to the device, a second clamping block and a first laser distance measuring sensor are arranged, the first laser distance measuring sensor can detect the distance value between a drill bit and an extension block at different positions of the drill bit, and the distance value between the drill bit and the extension block can be detected in the mode that the drill bit rotates; the detected distance value is uploaded to a background control system to be compared with a standard data value, and if the detected data value exceeds a standard data value interval, it is indicated that the drill bit deforms.

The invention discloses a drilling and grinding integrated combined machining device for hardware machining, and relates to the technical field of hardware machining, the drilling and grinding integrated combined machining device comprises an operation table, a supporting arm is arranged at the top of the operation table, a lifting device for lifting is arranged on the outer side of the supporting arm, drilling equipment is fixedly connected to the outer side of the supporting arm, and a drilling rod is arranged at the bottom of the drilling equipment; the fixing frame is fixedly connected to the top of the operation table, a through groove is formed in the top of the fixing frame, a rotary drum is fixedly connected to the bottom of the fixing frame, and a plurality of fixing frames are arranged in the rotary drum, so that the situation that an outer side material curls along a drill bit edge belt to form burrs in the plate drilling process of the drill rod is avoided; the mounting frame and the flattening piece rotate around the hole diameter of the plate under the action of the transmission piece, the flattening piece continuously pushes towards the middle of the hole diameter, the plate at the hole diameter expanding outwards is pushed towards the middle, and supporting is guaranteed when the plate is drilled.

The invention relates to the technical field of axle machining, and provides a cutting device and process for axle machining, the cutting device comprises a machining lathe, a connecting plate is fixedly connected to the interior of the machining lathe, and a sliding bottom plate is slidably connected to the outer side of the connecting plate. The first driving motor rotates to drive the top plate to move transversely, a threaded connection structure converts rotary motion into linear displacement, so that the top plate slides in the fixing column, pressure adjustment is conducted through a buffer structure arranged in the fixing column, the pressure adjusting system achieves accurate control over clamping force, meanwhile, the overload protection function is achieved, and the service life of the device is prolonged. Therefore, the problem that the clamping or jacking force is too large in the working process can be effectively solved, and the problem that the working efficiency during axle production is affected due to the fact that the axle is fractured due to the fact that the internal stress of the axle body is too large is solved.

The invention relates to the technical field of positioning machining clamps, in particular to an engine right suspension support positioning machining clamp which is characterized in that a rocker is rotated to drive a first bevel gear to rotate, and a second bevel gear meshed with the first bevel gear rotates along with the first bevel gear and drives a rotary disc to rotate synchronously. The shifting grooves in the surface of the rotary disc push the shifting rods inserted into the shifting grooves to move in the radial direction, the bottoms of the shifting rods are fixedly connected with the sliding blocks, and the sliding blocks slide in the sliding grooves of the fixed disc, so that the three sets of positioning blocks in a circumferential array synchronously move centripetally or centrifugally, and reference positioning of supports of different sizes is achieved; and then the L-shaped shifting piece is loosened and is automatically clamped between teeth of the limiting gear under the action of the first spring to achieve self-locking, displacement is prevented in the machining process, the outer surfaces of the engine right suspension supports of special shapes or different sizes can be positioned through the three sets of positioning blocks arranged in a circumferential array mode, and the application range is wide.

The invention discloses a multi-channel machining center, and relates to the field of machine tools, the multi-channel machining center comprises a base, the base is provided with a plurality of sets of vertical frames with lifting seats and tool magazines in parallel, a cutter head of each tool magazine clamps a plurality of tools through a annularly-arranged tool clamp, and the cutter head is arranged on a fixing shaft of the tool magazine in a sleeving mode and is driven by a front side cutter head motor to rotate; a chip blocking plate is fastened on the rear side of a connecting base which is arranged at the end of the fixing shaft and used for installing a cutter head motor, the chip blocking plate is connected with a sleeve of the cutter head in a sleeved mode, the cutter head motor drives the cutter head to rotate, a specified cutter can be switched to be combined with a main shaft of the lifting base, and the cutter can be close to a machining table which is arranged on the front side of the vertical frame and can horizontally move front and back or left and right. Therefore, the workpiece placed on the machining table is machined. Compared with the prior art, by means of the multi-channel design, the device can machine a plurality of workpieces at the same time, and the machining efficiency can be improved.

The invention discloses a rapid positioning and punching device and method for a precision die, and relates to the technical field of precision die and die casting machining equipment. The device comprises a workbench and an air floatation-vibration suppression and vacuum pre-fixing integrated platform at the bottom of a positioning groove of the workbench, and the air floatation-vibration suppression and vacuum pre-fixing integrated platform can be switched between a vacuum adsorption pre-fixing mode and an air floatation vibration suppression mode. Y-axis modules are arranged on the two sides of the workbench and drive the X-axis module and the Z-axis lifting mechanism to move. The intelligent drilling unit adopts an inner cooling type drill bit with a built-in phase change microcapsule, and the position error is compensated in real time through a laser interferometer. The method integrates the devices and sequentially comprises the steps of workpiece vacuum pre-fixing, air floatation vibration suppression, self-adaptive balanced clamping, vision and laser composite positioning, drilling and phase change self-cooling, laser dynamic error compensation and the like. The problems of positioning drifting, short service life of a drill bit and clamping unbalance during drilling of high-hardness die steel and large die castings (such as electric control boxes of new energy automobiles) are effectively solved.

The invention discloses a horizontal five-axis turning and milling combined machining center, and relates to the technical field of machining equipment.The horizontal five-axis turning and milling combined machining center comprises a workbench, a facing cutter structure is installed on one side of the top of the workbench, and the facing cutter structure and the workbench are fixedly installed through a fixing base; a milling cutter disc structure is installed on one side of the top of the workbench, a cutter machining manipulator structure is installed on the upper portion of the milling cutter disc structure, a main shaft structure is installed on the lower portion of the milling cutter disc structure through the fixing base, and an auxiliary main shaft structure is movably installed on the other side of the top of the workbench. At the moment, the machine tool must completely stop movement of a main shaft and a workbench, an operator needs to dismount a current cutter and then mount a next cutter, so that the actual cutting time of the machine tool is far lower than a theoretical value, and the efficiency of the whole equipment is reduced.

The automatic punching device for automobile brake disc machining comprises a workbench, a feeding mechanism used for automatic feeding is arranged at the top of the left side of the workbench, an annular sliding rail is fixedly installed in the center of the top of the workbench, and a plurality of first limiting sliding blocks are slidably connected to the annular sliding rail; according to the automobile brake disc punching device, symmetrical punching is carried out on an automobile brake disc through two cutting punching machines on the symmetrical drilling mechanism, the punching efficiency is high, during punching, an inserting rod is inserted into a limiting sleeve, the cutting punching machines are limited and fixed through the limiting sleeve and the inserting rod, and the punching efficiency is high; the cutting perforating machine has the advantages that the problem that the cutting perforating machine deflects during perforating is avoided, perforating quality is improved, an inserting rod can press a bottom plate downwards every time the inserting rod is pressed downwards, air in an air bag is blown out from an air blowing pipe when the inserting rod ascends, the top of the automobile brake disc is blown to remove chippings while pressing downwards, and manual cleaning with an air gun is not needed.

The invention belongs to the technical field of clamping, and discloses a large thin-wall shell self-adaptive floating shape follow-up clamp and a force feedback clamping method. The large thin-wall shell self-adaptive floating shape follow-up clamp has certain flexibility and can clamp a large thin-wall shell workpiece in a self-adaptive floating shape follow-up mode. The large thin-wall shell self-adaptive floating shape follow-up clamp can achieve the full-surface clamping force feedback function of a large thin-wall shell workpiece. Force sensors are arranged below the circumferential floating supporting module and the top supporting module, the clamping force can be monitored and displayed in real time through a PLC control system, the purposes of quantitatively applying the clamping force and conducting self-adaptive feedback adjustment on the clamping force are achieved, and the clamping precision is improved. The large thin-wall shell self-adaptive floating shape follow-up clamp can achieve automatic clamping and releasing of a large thin-wall shell workpiece. Based on a PLC control system, the top supporting module and the circumferential floating supporting module are controlled through air pressure and servo, the end face positioning device is driven through oil pressure, automatic clamping and releasing are achieved, manual participation is reduced, and the clamping efficiency is improved.

The invention belongs to the technical field of inner star wheel clamps, and particularly relates to an inner star wheel quick-change high-precision clamp which comprises a clamping shell, a clamping component is arranged in the clamping shell, the clamping component comprises a quick-change clamping block, and the quick-change clamping block clamps an inner star wheel. According to the quick-change high-precision clamp for the inner star wheel, the clamping component and the driving component are arranged, a chute is in inclined sliding fit with an inclined rod, and a pushing taper sleeve drives the conical surface of a roller on an inserting rod, so that the single axial movement of a driving hydraulic cylinder is creatively changed into the single axial movement of the driving hydraulic cylinder; according to the three-jaw chuck, the three clamping jaws are synchronously decomposed and converted into the composite motion of radial shrinkage and axial compression of the three clamping jaws, and the structure enables the clamp to actively and reliably restrain the axial degree of freedom of a workpiece while clamping the outer circle of the workpiece, so that the defect that the axial constraint of a traditional three-jaw chuck is weak is overcome. The method has the following direct effects: firstly, a machine tool is allowed to process by adopting larger cutting depth and feed rate, so that the processing efficiency is obviously improved, and the service life of a cutter is prolonged;

The utility model relates to a tool magazine and a numerical control machining tool, in particular to a self-cleaning tool magazine and a numerical control machining tool. Comprising a machine tool, a machining machine head, a fixing frame, a shell, an end cover and the like. A machining cavity is formed in the machine tool, a machining machine head is installed on the left portion of the machining cavity of the machine tool in a lifting mode, a fixing frame is arranged on the right wall of the inner side of the machining cavity of the machine tool, a shell is fixedly arranged on the fixing frame, and an end cover is arranged at one end of the shell. According to the utility model, the self-cleaning mechanism is arranged on the tool magazine, spray cleaning is carried out and the surfaces of the tools are cleaned on the way that the tools are clamped by the tool changing mechanism to be moved and put in storage, in the process, tool changing and machine tool machining are not influenced by the cleaning mechanism, equipment shutdown is not needed, and the tools are cleaned under the condition that normal machining is ensured, so that the machining efficiency is improved. The influence of pollutants on the tool and the tool magazine is reduced, the machining life of the tool is prolonged, and the machining quality is guaranteed.

The invention relates to the technical field of machining, and discloses belt pulley precision punching and surface polishing integrated equipment which comprises a loading box, a guide rod is connected to the top end of the loading box, a mounting transverse plate is slidably arranged at the top end of the guide rod, and multiple sets of downward pressing hydraulic cylinders are connected to the top end of the mounting transverse plate; and the output end of the downward pressing hydraulic cylinder penetrates through the mounting transverse plate and is connected with a connecting shell, and an adjustable drilling mechanism is arranged in the connecting shell in a connected mode. A belt pulley is positioned through the clamping unit, meanwhile, the belt pulley can be well positioned due to the moving synchronism of all the inner supporting blocks, multi-hole work can be conducted on the belt pulley at the same time through the adjustable drilling mechanism, the device is also suitable for machining of belt pulleys of different sizes, the working efficiency is effectively improved, and the practicability is high. The machined belt pulley rotates in the polishing sand, polishing work is conducted through friction, operation procedures are reduced, the production cost is reduced, and meanwhile the working efficiency is further improved.

A substrate support assembly includes a cooling plate and a chuck disposed on the cooling plate. The chuck includes one or more heating electrodes, and one or more clamp electrodes to electrostatically secure the chuck to the cooling plate. Another substrate support assembly includes a cooling plate, a first puck plate bonded to the cooling plate, and a second puck plate disposed on the first puck plate. The second puck plate includes one or more clamp electrodes to electrostatically secure the second puck plate to the first puck plate.

The invention provides a self-locking heavy-load cutter sleeve, and belongs to the field of numerical control machine tool machining. The expansion cap is slidably connected with the shell, an inclined part and spring plungers are arranged at one end of the expansion cap, the multiple spring plungers and centering blocks are arranged on the side wall of the shell in a circumferential array mode, the head of each spring plunger penetrates through the shell to abut against the corresponding centering block, and each centering block can slide in the radial direction of the shell; each centering block comprises a connecting block and a centering block, wherein the head of each spring plunger is connected with one connecting block; the positioning plate is arranged on one side of the connecting block, and a transition slope surface is arranged on the bottom surface of the positioning plate; during working, each connecting block abuts against the outer surface of the corresponding inclined part. The problem that in the prior art, a cutter sleeve bears heavy loads and is prone to disengagement is solved. The technical effect is that the cutter is ensured to be stably loaded on the cutter sleeve.

The invention relates to the technical field of hardware machining, and discloses a hardware drilling and tapping all-in-one machine with a turnover positioning structure, which comprises a machine base, a feeding component is mounted on the lower side of the machine base, a workbench is mounted on the feeding component, a drilling and tapping component is mounted on the upper side of the machine base, and a working cavity is formed in the upper end of the workbench; a semi-cylinder with a containing cavity in the upper end is rotationally mounted on the inner wall of the working cavity, and a hemispherical base is rotationally mounted on the inner wall of the containing cavity. The hardware drilling and tapping all-in-one machine with the overturning and positioning structure can effectively solve the problems that in the prior art, a hardware drilling and tapping machining mode mainly depends on a fixed clamp or a manual overturning mechanism, the positioning precision is unstable, and the surface of a machined part is scratched due to too tight clamping or overturning deviation; the problems that in the prior art, a clamp needs to be manually and repeatedly adjusted to be matched with the size or a machined part needs to be assembled and disassembled, the positioning efficiency needs to be improved, and meanwhile machined hole position deviation, insufficient thread precision, poor machining consistency and follow-up assembly difficulty are caused are solved.