16355results 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.

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 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 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 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 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 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 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 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;

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 piston machining drilling clamp and belongs to the technical field of piston machining, the piston machining drilling clamp comprises a machine tool and a machining table arranged on the machine tool, a piston is placed on the machining table, a clamping assembly used for fixing the piston is arranged on the machining table, and a supporting mechanism is arranged at the bottom of the piston. The supporting mechanism comprises two sets of supporting plates arranged at the bottom of the machining table, guide plates are slidably arranged on the supporting plates, and supporting cylinders are rotatably mounted on the guide plates; by arranging the supporting mechanism, precise positioning of the piston pin hole can be achieved, a stable machining reference is established, stable supporting of the pin hole is achieved through the synergistic effect of the multiple sets of supporting blocks, deformation of the pin hole due to different cutting forces is prevented, the supporting assembly can gradually retreat along with drilling, the supporting blocks always keep stable clamping force, and the machining precision of the piston pin hole is improved. And it is ensured that the hole wall is stressed in a balanced mode in the whole drilling process, and temporary deformation is avoided.

The invention relates to the technical field of five-axis machine tool drilling, in particular to a clamping device for wing hanging drilling operation and a laser measurement drilling system. A first middle assembly and a second middle assembly are detachably and fixedly connected with corresponding rotary tables; the second middle assembly is provided with an end plate extending front and back, and two sets of connecting areas spaced front and back are formed on the end plate. The clamping device further comprises a compensation insertion piece, and the compensation insertion piece can be selectively inserted between the first middle assembly and the first connecting lug and can also be selectively inserted between the connecting area and the rotary table so as to compensate the fluctuation quantity of the corresponding distance. The clamping device has the beneficial effects that through multiple technical means such as structure reuse, rotation reference unification, spacing compensation mechanism and assembly process optimization, high-precision, high-efficiency and high-stability indexing drilling clamping of the wing hanger is achieved, and then the drilling efficiency and the drilling precision are improved.

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 utility model relates to the technical field of finish machining of large rotary tables of boring and milling machines, in particular to an adjustable equal-height sizing block for machining a large rotary table. The device comprises a plurality of equal-height sizing blocks which are fixedly mounted on the table top of the large rotary table; the equal-height sizing block comprises an upper seat body, the upper seat body is connected with a lower seat body, cover plates are installed on the outer side of the upper seat body and the outer side of the lower seat body, a copper flange is installed at the top end of the upper seat body, the copper flange is connected with the upper seat body, a jacking column is installed in the upper seat body, a limiting block is installed at the bottom end of the outer side of the lower seat body, and a wedge block is installed at the bottom end in the lower seat body. A wedge block is arranged at the bottom end of the jacking column, one side of the wedge block is the inner wall of the lower seat body, a hexagon screw is installed on the other side of the wedge block, the other side of the hexagon screw is connected with a lengthened sleeve wrench, a sleeve wrench support is arranged at the bottom end of the lengthened sleeve wrench, and the bottom end of the sleeve wrench support is the ground. The equal-height sizing block provided by the utility model not only has the same height in the original state, but also can ensure the same height in real time, so that the labor intensity of an operator is effectively reduced.

The invention discloses a multi-station cooperative hydraulic valve element inner hole fine polishing and rolling workbench which comprises a base, a lifting seat is arranged in the base, a controller is arranged on one side of the base, the multi-station cooperative hydraulic valve element inner hole fine polishing and rolling workbench further comprises a multi-station machining assembly, and the multi-station machining assembly is arranged in the lifting seat. The invention relates to the technical field of hydraulic valve element production equipment, hydraulic valve elements are fixed through fixing stations which are annularly distributed at equal intervals, and the hydraulic valve elements are sequentially conveyed to the positions below the machining stations, so that a multi-station machining array conducts corresponding machining operation on inner holes of the multiple hydraulic valve elements at the same time; and the workpiece is rotated and moved for multiple times, so that the inner hole of the hydraulic valve element is sequentially subjected to all procedures of preliminary honing, blowing cleaning and fine polishing rolling, the production procedures are simplified, the production efficiency and the machining precision of machining of the inner hole of the hydraulic valve element are remarkably improved, and therefore the requirement for large-scale production is met.

The invention discloses a self-adaptive clamp for finish machining of an outer circle of a variable-cross-section thin-wall part. The self-adaptive clamp comprises a clamp body for installing a driving assembly, a self-adaptive positioning assembly and a clamping assembly. A third round sleeve is arranged at the right end of the clamp body; a plurality of mounting holes penetrate through the outer circumference and the inner circumference of the clamp body; an arc-shaped block of the self-adaptive positioning assembly is arranged in the mounting hole; the driving assembly comprises a center shaft, a conical protruding block is arranged at the position, corresponding to the inner supporting sliding block, of the center shaft, and when the center shaft moves leftwards, circumferential supporting positioning is provided for a workpiece to be machined. The clamping assembly comprises a first round sleeve rotationally installed at the near end of the clamp body and a second round sleeve slidably arranged at the other end of the clamp body, and the second round sleeve is located on the inner side of a third round sleeve and adjustably connected to the third round sleeve through a lead screw and a spring. And the second round sleeve applies axial clamping force to a to-be-machined workpiece clamped between the first round sleeve and the second round sleeve through the elastic force of the spring.

A positioning device for H-shaped steel cutting machining comprises a supporting piece, a positioning piece and a positioning piece, a through containing groove is formed in the supporting piece, and the supporting piece is used for containing H-shaped steel and making the H-shaped steel in a suspended state; the two sets of positioning pieces are symmetrically arranged on the left side and the right side of the first end opening penetrating through the containing groove, located in the thickness direction of a web of the H-shaped steel and used for conducting preliminary extrusion positioning on the web of the H-shaped steel; the two sets of fixing pieces are symmetrically arranged on the upper side and the lower side of a first port penetrating through the containing groove, located in the height direction of a web of the H-shaped steel and used for being matched with the thickness of the web of the H-shaped steel and fixing the H-shaped steel in a suspended mode; and the two sets of guiding pieces are symmetrically arranged on the left side and the right side of the second end opening penetrating through the containing groove, located in the thickness direction of a web of the H-shaped steel and used for conducting suspension guiding on the H-shaped steel by abutting against the two sides of the web of the H-shaped steel. The device mainly can reinforce suspended H-shaped steel, the clamping stability of the H-shaped steel is guaranteed, and the probability that due to the fact that deviation is likely to happen under the influence of the dead weight of steel, a notch inclines or the size is out of tolerance is effectively reduced.

The invention belongs to the field of machining, and particularly relates to a precise centering clamp for an annular thin-wall part. A precise centering clamp for an annular thin-wall part is reasonable in structure, has the self-adaptive adjusting capacity and can achieve precise centering. The precise centering clamp comprises a clamp base and the like. A bottom supporting piece is arranged at the top of the clamp base and can support and place workpieces with different diameters, a circle of rails are arranged on the top of the clamp base in the radial direction of the clamp base, adapters are arranged on the rails in a sliding mode and are in an L shape, clamping jaw bodies are connected to the inner side faces of the adapters, and the clamping jaw bodies can be detached. According to the clamping jaw, the clamping jaw body is divided into two parts through the arc-shaped groove, the clamping jaw body has an open space, so that the two faces of the clamping jaw body can make contact with the outer side wall of the annular thin-wall part, the stress points of the clamping jaw body and the annular thin-wall part are increased, the annular thin-wall part is better fixed, and the clamping jaw body can be prevented from being damaged due to stress.

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.

The present invention discloses an adaptive curved surface support device for a mirror milling swing head, relates to a technical field of part machining, comprises a fixing frame, a shell, a gimbal mechanism, a floating support mechanism and a plurality of springs, the shell is mounted at one end of the fixing frame, one end of the shell is provided with the universal mechanism and the floating support mechanism, the floating support mechanism is connected to the universal mechanism, the universal mechanism is used to make the floating support mechanism swing along circumferential direction, and the plurality of springs are arranged in the shell, the plurality of springs connect to the fixing frame and the floating support mechanism.

The invention relates to the technical field of engineering machinery manufacturing, in particular to an excavator part machining treatment device which comprises a fixing base, a support is fixedly connected to the fixing base, a driving mechanical arm capable of driving horizontal two-dimensional motion is installed at the top of the inner side of the support, and a sliding disc is fixedly connected to the lower end of the driving mechanical arm. The bottom face of the sliding disc is fixedly connected with a driving cylinder, and the lower end of the driving cylinder is fixedly connected with an inverted-U-shaped frame. According to the excavator part machining treatment device, three core procedures of drilling, inner wall grinding and end face grinding are integrated, through cooperative control of the driving mechanical arm, the driving air cylinder and the motor, full-process part machining can be completed without equipment replacement or repeated clamping, the part transferring and positioning time is effectively shortened, and the machining efficiency is improved. The problem that traditional step-by-step machining is low in efficiency is solved, and the machining efficiency is improved.

The invention discloses a precision clamp device for machining special-shaped workpieces in mechanical design, and relates to the technical field of mechanical manufacturing, the precision clamp device comprises a base main body, a reference bottom plate, a plurality of rotating shafts and corresponding elastic clamping blocks, the reference bottom plate is arranged on the base main body, and positioning slots are formed for the rotating shafts to be rotatably mounted; the rotating shafts can independently rotate and drive the elastic clamping blocks to deflect to adapt to the irregular surface of the special-shaped workpiece, the rotating shafts comprise rotating blocks matched with the inserting grooves and adjusting sliding grooves extending along the shaft length, and the rotating shafts are evenly distributed on the circumference of the reference bottom plate; an elastic clamping block is connected with a transmission screw and an adjusting nut, a linear sliding block is arranged to be matched with an adjusting sliding groove, a self-adaptive contact is arranged on the side, facing the clamping center, of the elastic clamping block, the contact is provided with an elastic protection contact end cover, and a stress sensing connecting rod and an elastic buffering spring are installed in the contact. A movable rod penetrates through the base body, one end of the movable rod is connected with a control handle, the other end of the movable rod is connected with a self-adaptive pressing plate, the movable rod is sleeved with a reset spring, the pressing plate is provided with a profiling abutting block, and the clamping stability is improved.

The invention belongs to the technical field of drilling, tapping and milling compound machines, and particularly relates to a horizontal five-axis drilling, tapping and milling compound machine. The five-axis drilling, tapping and milling combined machine comprises five-axis drilling, tapping and milling machine heads and a combined machine base connected with the bottoms of the five-axis drilling, tapping and milling machine heads, a machining supporting table is arranged between the five-axis drilling, tapping and milling machine heads which are oppositely distributed, and a supporting bottom bin is fixedly arranged at the bottom of the machining supporting table; the supporting extension table is attached to the side face of the machining supporting table and the side face of the supporting bottom bin, a side waist transverse groove is formed in the surface of the supporting bottom bin, an extension bottom rod part inserted into the side waist transverse groove is fixedly arranged at the bottom of the supporting extension table, and a pressing mechanism acting on the extension bottom rod part is arranged in the supporting bottom bin. By means of the detachable and rotatable supporting extension table, the supporting area can be flexibly expanded according to the size of a workpiece, point-to-point precise supporting of an ultra-long workpiece and a special-shaped workpiece is achieved in cooperation with a moving block in a longitudinal groove of the extension table and a height-adjustable supporting head, and the clamping angle can be flexibly adjusted through a combined structure of an arc-shaped adjusting plate and a multi-edge transverse inserting column.

The invention relates to the technical field of machining equipment, and discloses a disc-shaped part milling machine tool and a machining method.The disc-shaped part milling machine tool comprises a machine tool base, a workbench arranged on the machine tool base, a Z-axis guide rail arranged on the workbench, a connecting arm ascending and descending along the Z-axis guide rail and a motor installed at the end of the connecting arm; the output end of the motor is fixedly connected with a driving column, and a milling cutter is mounted at the bottom end of the driving column; a hydraulic cylinder is arranged below the workbench; the device further comprises a lower self-adaptive clamping assembly and an upper follow-up vibration suppression assembly. The lower self-adaptive clamping assembly comprises a connecting disc, a center cylinder, a movable cylinder, a second spring and a supporting column. Through the synergistic effect of the lower self-adaptive clamping assembly and the upper follow-up vibration suppression assembly, the machining rigidity of the disc-shaped thin-wall part is remarkably improved, the lower supporting column provides rigid support for the originally suspended center of the part after being locked, and sinking deformation caused by axial cutting force is prevented.

The invention relates to the technical field of fine hole precision machining and surface treatment, and discloses a precision drilling device for winding machine accessories, which comprises a workbench, a main shaft driving unit is arranged on one side of the workbench, a compound tool is mounted on the main shaft driving unit, and the main shaft driving unit is used for driving the compound tool to rotate and axially feed; a clamping base is embedded and fixedly connected to the upper surface of the workbench and used for positioning and installing a workpiece, a fluid processing unit is arranged in the workbench, located below the clamping base and communicated with the clamping base, and a sealing guide assembly is arranged between the clamping base and the main shaft driving unit. The compound tool is divided into a cutting guide section at the front end, a fluid disturbance section at the middle end and a clamping section at the rear end in the axial direction. By means of the integrated design of the compound tool, two procedures are seamlessly connected under the same main shaft and clamp system, and accumulative errors caused by workpiece transferring and repositioning are thoroughly eliminated.

The invention relates to the technical field of shovel tooth machines, and discloses a shovel tooth machining device for oxygen-free copper shovel tooth cooling fins, which mainly comprises a base, a workbench, an electric telescopic rod, a hydraulic telescopic rod, a shovel blade, a cooling device, an angle adjusting device, a circumferential adjusting device, a protective device and the like, the outer surface of the limiting shaft is rotationally sleeved with a gear, an inner gear ring is fixedly connected to the middle of the bottom face of the base, and clamping teeth are fixedly connected to the outer surface of the inner gear ring. When the direction of the oxygen-free copper block needs to be adjusted, an operator only needs to pull out the connecting rod and the limiting teeth through the pressing rod, then the base is rotated, the oxygen-free copper block on the vacuum suction cup base reaches the needed position, then the pressing rod is pressed, the pressing rod drives the connecting rod and the limiting teeth to move towards the gear ring, and then the oxygen-free copper block on the vacuum suction cup base can be adjusted. And the tooth ring is fixed and limited through cooperation of the limiting teeth and the clamping teeth, and through the design, tooth relieving machining of the oxygen-free copper block at any angle can be achieved.

The parallel multi-channel numerical control machine tool with the workpiece vibration detection structure comprises a machine base, and the top of the machine base is connected with a working table top through an electric sliding rail; a bag body on the inner side of a hollow air ring is inflated and expanded through an air inlet pipe and then makes close contact with the surface of a workpiece to form flexible contact, vibration of the workpiece can extrude the bag body in the machining process, the bag body deforms to enable an inner side abutting plate to move, and an abutting rod gets close to a pressure sensor along with the abutting plate and generates pressure; meanwhile, atmospheric pressure fluctuation is released through the conical amplification cavity due to the volume change of the capsule, the sectional area of the conical amplification cavity is gradually reduced from the capsule to the hollow air ring, the atmospheric pressure fluctuation generated by the volume change of the capsule is amplified through the change of the sectional area, and the atmospheric pressure sensor captures the fluctuation and cooperates with the fiber grating sensor to swing along with the propping plate to generate strain; signals of the three types of sensors are synchronously transmitted to the controller, vibration parameters are output after analysis, meanwhile, interference of cutting fluid, scrap iron and the like can be isolated, and stable detection in a severe machining environment is ensured.

The invention relates to the field of bus duct processing, in particular to a hydraulic processing machine for producing a bus duct. A side base is arranged on the working table, two clamping plates are arranged beside the side base, two abutting shafts are rotationally installed on the opposite sides of the two clamping plates respectively, two three-axis moving mechanisms are arranged at the upper end of the side base, and a drilling machine, a cutting machine and a bending mechanism are sequentially installed at the output ends of the three-axis moving mechanisms from the center line of the side base to the edge of the side base. The bending mechanism comprises a two-way air cylinder connected with the output end of the three-axis moving mechanism, the output end of the two-way air cylinder is fixedly connected with two chucks, main rubber rollers are rotationally arranged on the opposite sides of the two chucks respectively, and auxiliary rubber rollers are rotationally arranged below the main rubber rollers; connecting discs fixedly connected with the chuck are arranged beside the main rubber roller, and the opposite sides of the two connecting discs are rotationally connected with secondary rubber rollers correspondingly and rotationally connected with the bending frames correspondingly. According to the device, multi-procedure linkage is achieved through cooperation of multiple components, the abutting shaft, the main rubber roller, the auxiliary rubber roller and other structures act together, and the adjusting frequency of the clamp in the machining process is reduced. And the stability and precision during machining are effectively improved, and then the production efficiency is improved.

The utility model discloses a positioning device for a steam seal ring of a steam turbine with non-uniformly distributed back arc spring holes, and belongs to the technical field of steam turbines, the positioning device comprises a positioning disc, a plurality of positioning holes are formed in the positioning disc, and the positioning holes are distributed in the circumferential direction of a multi-arc-section combined type annular workpiece; the connecting holes are in one-to-one correspondence with a plurality of connecting holes formed in the multi-arc-section combined type annular workpiece; the multiple positioning columns are connected with the multiple positioning holes in a one-to-one correspondence mode, and each positioning column is provided with a positioning face and a positioning groove; the length of the adjusting mechanism is adjustable, and by rotating the positioning columns, the two ends of the adjusting mechanism can extend into the positioning grooves in any set of two positioning columns oppositely arranged in the radial direction, so that the connecting holes in the multi-arc-section combined type annular workpiece are aligned with the positioning grooves in the corresponding positioning columns in the radial direction, and meanwhile, the adjusting mechanism can adjust the length of the adjusting mechanism. The positioning faces on the corresponding positioning columns are attached to the corresponding arc sections in the multi-arc-section combined annular workpiece.

The invention relates to the technical field of milling, and discloses a milling device which comprises a milling machine tool, a lifting assembly is arranged on the outer wall of the milling machine tool, a fixing frame is arranged on the outer wall of the lifting assembly, a first motor is fixedly connected to the outer wall of the fixing frame, a through shaft is connected to the output end of the first motor, and a second motor is arranged on the outer wall of the through shaft. Positioning bevel gears are fixedly connected to the two sides of the outer wall of the through shaft, bevel gear shafts are connected to the tooth ends of the positioning bevel gears in a meshed mode, bevel gear rack plates are connected to the tooth ends of the bevel gear shafts in a meshed mode, vertical rods are fixedly connected to the two sides of the lower surface of the fixing frame, and springs are arranged on the inner walls of the vertical rods. The motor I is started to drive the through shaft to rotate so as to drive the positioning bevel gear and the bevel gear shaft to rotate, so that the fixed frame integrally moves, the side edge of the steel plate is gradually milled, and then the motor II is started to mill the other side edge, so that continuous milling can be realized without changing the placing direction of the steel plate by stopping the machine, and the working efficiency is improved.