562results about "Expansion mandrels" patented technology

The invention discloses an integrated machining device suitable for a large marine propeller, which comprises a machining adjusting assembly, the machining adjusting assembly is composed of an X-axis moving mechanism, a Y-axis moving mechanism and a Z-axis moving mechanism, one side of the Z-axis moving mechanism is fixedly provided with a rotating mechanism, one end of the rotating mechanism is fixedly connected with a cutting assembly, and the other end of the rotating mechanism is fixedly connected with a cutter; according to the large marine propeller integrated machining device with the automatic machining function and the self-adaptive clamping function, through the integrated multi-axis linkage machining adjusting assembly and the three-dimensional scanner, automatic path planning can be conducted, and automatic operation is achieved; therefore, the dependence on advanced technicians is greatly reduced, the machining efficiency and the product consistency are remarkably improved, and meanwhile, through the collaborative design of the rotatable three-jaw chuck and the center supporting mechanism, simultaneous reliable supporting from the interior and the exterior of the workpiece can be automatically achieved during clamping.

The invention provides a slip machining device which comprises a mandrel, an elastic supporting assembly arranged on the outer surface of the mandrel, a first pressing plate and a second pressing plate, the outer surface of the mandrel is sleeved with the first pressing plate and the second pressing plate, a first clamping groove and a second clamping groove are formed in the first pressing plate and the second pressing plate respectively, and the two ends of a slip are clamped in the first clamping groove and the second clamping groove respectively. The end, away from the mandrel, of the elastic supporting assembly abuts against and makes contact with the surface of the slip. According to the slip machining device, enough supporting force can be provided through the first pressing plate, the second pressing plate and the elastic supporting assembly, vibration reduction performance can be provided for the slip through the elastic supporting assembly, and therefore the slip has good stability in the machining process, the slip is prevented from falling off from the loading mechanism, and the machining efficiency is improved. The workpiece precision and the machining efficiency are improved.

The invention discloses a drilling device and method for greenhouse steel pipe production, belongs to the technical field of steel pipe drilling, and provides the following scheme that the drilling device comprises a drilling mechanism, and a drilling auxiliary mechanism is arranged in the drilling mechanism; the drilling assembly moves downwards, a pulley moves along with the drilling assembly and extrudes an inclined plane between the pulley and a sliding rail, a first piston rod moves, an elastic supporting assembly is hydraulically driven to move, a supporting head enters a steel pipe fitting, the steel pipe fitting can be limited by the supporting head, and meanwhile an inner cavity of the steel pipe fitting is full of the supporting head; secondly, the elastic supporting assembly further drives the toothed bar and the clamping assembly to conduct transmission, so that the clamping assembly clamps and fixes the steel pipe, then extrusion movement between a pulley and a sliding rail is adopted, acting force can be converted through hydraulic pressure, and therefore the steel pipe can be clamped and fixed; and the toothed bar smoothly drives the clamping assembly to complete automatic positioning of the steel pipe fitting, so that the purpose of efficient operation is achieved.

The utility model discloses a slider type expanding mandrel tool, which belongs to the technical field of machining and comprises an outer shaft, fixing tables are uniformly distributed on the periphery of the surface of the outer shaft, supporting rods are rotatably connected to the fixing tables through pin shafts, a supporting plate is arranged right above the supporting rods, one end of the supporting plate is welded with a slider, and the other end of the supporting plate is welded with the slider. A guide column is fixed to one end of the exterior of the outer shaft, and an inner shaft is slidably connected to the interior of the outer shaft. The mandrel tool is arranged in a sliding structure composed of the sliding block, the sliding frame, the supporting plate, the supporting rod and the like, rapid clamping of a mandrel workpiece can be achieved, compared with a traditional clamping tool, the clamping time is greatly shortened, the workpiece clamping efficiency is improved, and the machining cost is reduced. And when a workpiece with thin wall thickness is clamped, the situations that the outer surface of the workpiece is scratched and the workpiece is deformed are avoided.

The invention relates to the technical field of lathe mandrels, in particular to a multi-stage expansion mandrel with an intelligent detection function. According to the technical scheme, a main shaft is included, a cylinder barrel is arranged on the outer ring of one end of the main shaft, a cylinder cover is arranged between the cylinder barrel and the main shaft, three sets of oil pipe joints are arranged on the cylinder barrel, more than three sets of expansion shafts are arranged at the position, located on the inner ring of the cylinder barrel, of one end of the main shaft, and an expansion assembly is arranged at the top end of each set of expansion shafts. The outer rings of the top ends of the expansion shafts are sleeved with nuts. The multi-stage expansion shaft and the multi-stage expansion assembly are matched with each other, so that workpieces with different inner diameters can be clamped and assembled, the replacement frequency of the expansion mandrel is avoided during multi-product operation, the production efficiency is improved, an operator can quickly disassemble, assemble and replace the expansion assembly through the arrangement of the nut, and the labor intensity of the operator is reduced. And subsequent daily overhaul and maintenance of the device are facilitated.

A robotic drill system and a method of drilling with a robotic drill system. This includes inserting a tool head of the robotic drill within a hole of a drill template along an initial insertion trajectory with a robotic manipulator arm that is moved by at least one robotic actuator for causing robotic insertion of the tool head. In response to sensing binding of the tool head to a wall of the hole while inserting the tool head along the initial insertion trajectory, the disclosure includes stopping robotic insertion of the tool head and activating a self-centering device of the tool head to reorient the tool head to a corrected alignment of the tool head axis relative to the hole. The self-centering device may include an expandable collet.

The invention discloses a workpiece rotation driving device for workpiece surface groove processing equipment, comprising: a clamping mechanism comprising a frame, a rotating base rotatably mounted on the bottom side of the frame, and a lifting base mounted on the upper side of the frame in a liftable manner; the covering type inner hole limiting assembly comprises a fixed barrel fixedly connected to the bottom side of the lifting base, a plurality of arc-shaped blocking and pushing plates are movably arranged on the periphery of the fixed barrel, an arc-shaped jacking plate is movably arranged between every two adjacent arc-shaped blocking and pushing plates, and the arc-shaped blocking and pushing plates and the arc-shaped jacking plates are each fixedly connected with a set of corresponding connecting rod pieces; the limiting driving mechanism comprises a driving shaft, sliding rods are obliquely and fixedly connected between the connecting rod pieces, and a plurality of inverted-T-shaped grooves used for being connected with the sliding rods in a sliding mode are formed in the outer side face of the driving shaft. According to the invention, the overall clamping effect of the workpiece can be effectively ensured, and the deformation of the workpiece mounting hole caused by spinning machining can be reduced.

The utility model discloses a drilling and milling machine quick assembling and disassembling clamp which comprises a supporting seat and a clamp body, an installing rod is arranged on the supporting seat, an installing sleeve is arranged on the clamp body, an inserting rod is arranged on the installing sleeve in a sliding mode, an inserting hole is formed in the installing rod, an installing ring is arranged on the installing sleeve, and an inclined block is arranged on the installing ring. A limiting sliding block is arranged on the inserting rod, a limiting sliding groove is formed in the inclined block, the clamp body comprises a supporting frame, an adjusting device and a base are arranged on the supporting frame, a core shaft is arranged on the base, an expansion tire is arranged on the core shaft, and a pressing plate is arranged on one side of the expansion tire. And by rotating a mounting ring, an inclined block is driven to rotate, then an inserting rod is driven to move through cooperation of a limiting sliding block and a limiting sliding groove, and through cooperation of the inserting rod and an inserting hole, the fixing sleeve and the clamp body can be conveniently mounted and fixed.

The utility model relates to the technical field of positioning tools, and particularly discloses a quick positioning device for processing internal and external key grooves, which comprises a mandrel, an expansion sleeve, a nut and a processing workpiece, a threaded section is arranged on the surface of the mandrel, a positioning block is fixedly arranged on the surface of one end of the mandrel, a clamping groove is arranged on the outer circumferential surface of the expansion sleeve, and key grooves are arranged in an inner hole of the processing workpiece. Positioning strips are fixedly arranged on the outer circumferential surface of the expansion sleeve. According to the technical scheme, the opening seams are evenly distributed in the two ends of the expansion sleeve, the mandrel is attached to the conical surface of the expansion sleeve, the expansion sleeve is matched with the nut to achieve radial expansion of the expansion sleeve and used for clamping a workpiece, the positioning strip of the expansion sleeve is connected with the key groove of the machined workpiece in a clamped mode, and anti-play assembly of the expansion sleeve and the machined workpiece is achieved. The mandrel is clamped into the clamping groove of the expansion sleeve through the positioning block to achieve anti-play assembly of the mandrel and the expansion sleeve, so that when the two ends of the mandrel are fixed, a machined workpiece can be rapidly positioned, and the outer key groove to be machined of the machined workpiece can be conveniently machined.

The utility model relates to a positioning device for machining an integrated thin-walled tube, and belongs to the technical field of machining. When in use, an operator axially inserts the device into a pipe hole of the thin-walled pipe, adjusts the axial position of the conical pin through the screw rod, and further pushes the wedge-shaped block to move along the supporting pipe in the radial direction, so that the inner wall of the thin-walled pipe is supported in the radial direction, vibration of the thin-walled pipe in the machining process is effectively reduced, and machining efficiency is improved. Deformation and damage of the thin-walled tube caused by cutter pressure are avoided, the geometrical shape and dimensional accuracy of the thin-walled tube are guaranteed, and therefore the machining stability and the surface machining quality of the thin-walled tube are improved.

The present invention relates to the technical field of mechanical cutting, and specifically relates to a pipe welding beveling machine with an automatic positioning function, which includes a frame and a driving frame. A plurality of support arms are arranged between the driving frame and the frame. One end of the driving frame far from the frame is provided with a cutting assembly; by moving the driving frame along the axial direction of the pipe, the plurality of support arms are synchronously driven to expand radially along the pipe. After the plurality of support arms are in contact with the inner wall of the pipe, the frictional force generated by the multi-point contact cancels the cantilever load of the cutting assembly at the pipe port, so that the center of gravity of the beveling machine is stabilized inside the pipe. As the driving frame continues to move, the supporting force of the support arms on the pipe gradually increases, thereby compensating for the cutting force and vibration and improving the processing stability. Different from traditional beveling machines that rely on external fixtures or hoisting for fixation, this device can achieve automatic fixation by using a support arm structure with multi-point contact, is suitable for operation in narrow spaces, and improves the construction convenience.

The invention relates to the technical field of aero-engine manufacturing, in particular to a clamp and method for machining the outer circle face of a thin-wall positioning bush for a rotating shaft. The clamp comprises a mandrel assembly, and the mandrel assembly comprises a left shaft body, a right shaft body and a connecting steel pipe connecting the left shaft body and the right shaft body. The left end of the left shaft body is sleeved with a clamping sleeve; a left compression nut, a left cone and a left clamp spring are sequentially mounted on the left shaft body from left to right; the left compression nut is in threaded fit with the left shaft body; the inner hole surface of the left cone is in sliding fit with the outer cylindrical surface of the left shaft body; the outer conical surface of the left cone is matched with the inner conical surface of the left clamp spring and is used for opening the left clamp spring; a right compression nut, a right cone and a right clamp spring are sequentially mounted on the right shaft body from right to left; the right compression nut is in threaded fit with the right shaft body; the inner hole surface of the right cone is in sliding fit with the outer cylindrical surface of the right shaft body; the outer conical surface of the right cone is matched with the inner conical surface of the right clamping spring and used for opening the right clamping spring. According to the clamp, the rigidity of the thin-wall positioning bushing in the machining process is improved.

The utility model relates to the field of machining technology, and relates to a turning fixture suitable for automobile bell housings. The utility model positions the housing through a positioning fixture, and the mandrel is connected to the clamping pins. The mandrel drives multiple clamping pins to synchronously extend out of the guide holes to center the housing. The multi-point clamping pins are used to contact the ball surface of the workpiece, and the workpiece is tightened when the mandrel is pushed forward. The assembly is convenient, the clamping is more stable, and the precision of the processed product is higher. At the same time, based on the centering clamping of the ball surface of the workpiece blank, the allowance of the next ball surface processing is reduced, and the allowance is more uniform, ensuring the product precision.

The invention relates to the technical field of mechanical cutting, in particular to a pipeline welding beveling machine with an automatic positioning function, which comprises a rack and a driving frame, a plurality of supporting arms are arranged between the driving frame and the rack, and a cutting assembly is arranged at one end, far away from the rack, of the driving frame; the driving frame moves in the axis direction of the pipeline, the multiple supporting arms are synchronously driven to be unfolded in the radial direction of the pipeline, after the multiple supporting arms are attached to the inner wall of the pipeline, the friction force generated by multi-point contact counteracts the cantilever load, located at the end opening of the pipeline, of the cutting assembly, and the gravity center of the beveling machine is stabilized in the pipeline; and along with continuous movement of the driving frame, the supporting force of the supporting arm on the pipeline is gradually enhanced, so that the cutting force and vibration are compensated, and the machining stability is improved. The situation that a traditional beveling machine depends on an external clamp or is fixed in a hoisting mode is avoided, automatic fixing can be achieved through a multi-point contact supporting arm structure, the device is suitable for operation in a narrow space, and construction convenience is improved.

The invention relates to the field of metal punching, and discloses a punching device for machining a chemical container supporting skirt cylinder, the punching device comprises a protective shell and a supporting skirt cylinder original part, an automatic position adjusting punching structure is arranged in the protective shell, the automatic position adjusting punching structure comprises a pushing assembly and an overturning assembly, the pushing assembly punches the supporting skirt cylinder original part, and the overturning assembly overturns the supporting skirt cylinder original part. When the pushing assembly moves downwards, the overturning assembly overturns and fixedly supports the skirt tube original part, the pushing assembly comprises a transmission motor, the transmission motor drives a transmission sliding block to move up and down through transmission and drives a first bevel gear and a second bevel gear to conduct transmission at the same time, the transmission motor can control forward rotation and reverse rotation, and the overturning assembly comprises an I-shaped threaded sliding block. A ratchet wheel is installed outside the I-shaped threaded sliding block, and the I-shaped threaded sliding block and the ratchet wheel are in transmission through a ratchet block. The hollow drill has the beneficial effects that the hollow drill is moved to the top end of the cylinder through transmission, meanwhile, the original supporting skirt cylinder is fixed, and the angle of the supporting skirt cylinder can be adjusted to drill different holes.

The invention discloses a dynamic and static vortex plate straight-pulling inner-supporting type centering chuck and a using method thereof, and belongs to the field of compressor part machining. According to the technical scheme, the centering chuck is characterized by comprising the steps that S1, three outer clamping claws move upwards and rotate back to the center of a base body; s2, the dynamic and static vortex plates are placed on the seat body, and the three inner supporting claws are clamped into the circular grooves; s3, three inner supporting claws are driven; s4, the three outer clamping claws move downwards and rotate and return towards the center of the base body; and S5, the seat body is driven to conduct one-way numerical control displacement along the X axis, the cutter is driven to conduct one-way numerical control displacement along the Y axis, and the cutter cuts the vortex structure on the dynamic and static vortex plates. The movement of the seat body and the cutter is one-way movement, so that the normal clearance of a quadrant critical point can be effectively eliminated in the cutting process of the dynamic and static vortex plates, the product machining precision is improved, and the operation efficiency of the compressor is improved when the dynamic and static vortex plates are applied to the compressor.

The invention relates to the technical field of positioning of thin-walled workpieces, discloses a thin-walled workpiece anti-deviation positioning device based on a numerical control machine tool, and aims to solve the technical problems that thin-walled workpieces are prone to deformation during positioning and traditional clamping blocks are poor in adaptability. The thin-walled workpiece anti-deviation positioning device comprises a numerical control machine tool body, a rotating chuck, an adjustment driving assembly, a push rod assembly and an expansion positioning assembly; the circular-truncated-cone-shaped pushing block converts rotary motion into linear motion through a lead screw nut mechanism and is matched with the limiting assembly to drive the push rod assembly to synchronously, evenly and radially stretch out and draw back, the spring steel sheet with the preparation section is driven to achieve curvature self-adaption, and the preparation section can slidably compensate the arc surface section to adapt to thin-wall pipe fittings with different pipe diameters and keep surface contact. The device is provided with a front group of staggered expansion positioning rings and a rear group of staggered expansion positioning rings, full-circumferential gapless support on the inner wall of the pipe fitting is formed, the problem of stress concentration caused by line contact is avoided, deformation of the thin-wall pipe fitting is effectively prevented, the requirements for positioning firmness and deformation prevention are considered, and the machining qualification rate and production efficiency of the thin-wall pipe fitting are remarkably improved.

The utility model relates to a finish turning excircle tooling for processing high hardness thin wall cylindrical part, including support shaft sleeve, expansion sleeve, support piece, wedge block, pull rod, pressure plate, bolt and thin wall cylindrical part, the expansion sleeve is provided in the thin wall cylindrical part, the outer ring surface of expansion sleeve is matched with thin wall cylindrical part inner surface, the support shaft sleeve extends into the expansion sleeve, the support piece is provided with the wedge block, the pull rod is provided with the pressure plate, the bolt is provided with the pressure plate. Wedge blocks and a supporting piece are arranged between the expansion sleeve and the supporting shaft sleeve, the two wedge blocks are symmetrically arranged on the supporting shaft sleeve in a sleeving mode, the supporting piece is arranged between the two wedge blocks in a clamping mode, one wedge block is limited through a shaft ring of the supporting shaft sleeve, the other wedge block is limited through a pressing plate, the pressing plate is connected with a pull rod through a bolt, and the pull rod is arranged in the supporting shaft sleeve. The wedge block and the expansion sleeve are in wedge-shaped connection, and the wedge block and the supporting piece are in wedge-shaped connection. The clamp is simple in structure, the whole expansion sleeve expands outwards, a machined workpiece is evenly stressed, the clamping effect of the clamp is enhanced, and the machining precision is greatly improved.

The invention discloses a drilling method. The drilling method comprises the steps that a plurality of concentric lightening holes are preset in a workpiece; an expansion chuck of the automatic feeding drill is controlled to move into the blind hole, and the expansion chuck is tightly supported on the inner wall of the blind hole; and a drill bit of the automatic feeding drill is started to drill a riveting hole in the bottom of the blind hole. The expansion chuck is tightly supported in the blind hole, the stability of the expansion chuck can be guaranteed, an additional clamping device is not needed to clamp the expansion chuck, the drilling cost can be effectively reduced, stable operation of the automatic feeding drill can be guaranteed, and then the drilling precision is guaranteed. Besides, during drilling, the expansion chuck and the drill bit are moved into the blind hole, other extra devices do not need to be operated to position the expansion chuck, and therefore the drilling efficiency can be effectively improved. The invention further discloses drilling equipment, the concentric lightening hole in the workpiece can be used for supporting and positioning the expansion chuck of the automatic feeding drill, and the drilling efficiency and the drilling precision can be effectively improved.

The invention discloses a continuous machining device for a motor base, which belongs to the technical field of motor base machining and comprises a machine table, a special-shaped frame is vertically mounted at the top of the machine table, a lifting plate is arranged at the top of the machine table, a rectangular cylinder is arranged at the bottom of the lifting plate, a telescopic body is arranged in the rectangular cylinder, and a mounting plate is vertically mounted at the top of the machine table; according to the continuous machining device for the motor base, the first adjusting assembly is arranged, when the transverse distance between the punching drill bits needs to be adjusted, the first motor is started to drive the first forward-reverse screw rod to rotate, and in the rotating process of the first forward-reverse screw rod, the first forward-reverse screw rod is driven to rotate, so that the transverse distance between the punching drill bits is adjusted; according to the drilling device, the two first threaded blocks engaged with the drilling bits in a threaded mode are driven to move, then the rectangular barrels installed at the bottoms of the first threaded blocks are driven to be adjusted, the transverse distance between the drilling bits is adjusted, the distance between workpiece drilling can be adjusted according to needs, and the machining range of the device is widened.

The utility model relates to the technical field of clamps, and discloses a manufacturing clamp which comprises a base, a straight plate is fixedly connected to the surface of the base, a clamping assembly is arranged on the side wall of the straight plate and comprises a rotating disc, the rotating disc is fixedly connected to the side wall of the straight plate, a fixing shaft is fixedly connected to the side wall of the rotating disc, and the fixing shaft is fixedly connected to the side wall of the straight plate. The interior of the fixing shaft is slidably connected with two groups of symmetrically arranged circular rings, a sliding groove is formed in the side wall of the fixing shaft, the interior of the sliding groove is slidably connected with two groups of symmetrically arranged mounting seats, and the mounting seats are fixedly connected to the side walls of the circular rings. According to the device, the two-way threaded rod is driven by the first motor to rotate, then the two circular rings are pushed to move relatively along the inner wall of the fixing shaft, the inclination angle of the supporting plate is changed, the end of the supporting plate is connected with the arc-shaped plate in a hinged mode, and therefore the attaching degree of the arc-shaped plate and the inner wall of the tubular part can be adjusted according to the inclination of the supporting plate; the precision of the clamp is improved.

The flexible inner supporting device comprises a base, a supporting body fixed to the upper surface of the base, an inner supporting chuck fixed to the upper end of the supporting body, a horizontal rotating rod rotationally connected to the middle of the supporting body, and a push rod vertically connected to the middle of the supporting body. The horizontal rotating rod is rotated until the thicker side of the cam in the middle of the horizontal rotating rod faces upwards, the push rod is jacked upwards, and the conical positioning section of the push rod pushes the positioning plate of the inner supporting chuck to expand outwards in the radial direction, so that the thin-wall cylindrical part is clamped and positioned; when the thin-wall cylindrical part is released, the horizontal rotating rod is rotated till the thin side of the cam faces upwards, the positioning plate of the inner supporting chuck retracts in the radial direction under the elastic force effect of the elastic connecting cylinder, and the thin-wall cylindrical part can be detached from the inner supporting chuck. According to the flexible inner supporting device, clamping is flexible, and deformation caused by uneven clamping force can be greatly reduced.

The invention discloses a positioning and clamping device for fine boring of a planet carrier. The positioning and clamping device is characterized by comprising a base, equal-height blocks, an inner hole tensioning device, a pressing device and a positioning bolt, the base is installed on a boring equipment working platform, and the inner hole tensioning device is installed on the base and used for tensioning an inner hole in the lower end of a workpiece through a steel ball. The equal-height blocks are evenly distributed on the upper plane of the base in a circumferential mode and used for supporting workpieces. The lower end of the positioning bolt is mounted on the left upper side of the base, and the upper end is inserted into a process positioning hole in a workpiece; the two pressing devices are symmetrically arranged on the left side and the right side of the base and used for pressing the workpiece. The multiple steel balls which are arranged in the same horizontal plane and evenly distributed in the circumferential direction are adopted to tension / loosen the inner hole in the lower end of the workpiece along with vertical movement of the abrasion-resistant taper sleeve, operation is easy and fast, the tensioning positioning precision is high, the steel balls make point contact with the inner hole of the workpiece, the contact area is greatly reduced, and the inner hole of the workpiece cannot be damaged.

According to the machining system and method for machining the revolving body through hole thin-wall shell, firstly, a smooth surface expansive force central spindle is aligned and clamped on a lathe clamp, the central spindle is installed on the through hole thin-wall shell with an inner hole machined in place, axial and radial positioning is achieved, then a lathe center is driven to push a conical face ejecting block, and the through hole thin-wall shell is machined in place. The elastic expansion sleeve and the smooth expansion sleeve are expanded through the two conical surface pairs, so that the smooth expansion sleeve is expanded slightly in the radial direction, the outer surface of the smooth expansion sleeve, namely the smooth support, forms high-rigidity support for the inner hole of the through hole thin-wall shell, and then the thin-wall outer circle is subjected to semi-finish turning and finish turning; after turning, the center of the lathe is withdrawn, compressed air is blown into an air chamber from an air inlet through an air gun, the conical surface ejector block is pushed away, the elastic expansion sleeve and the smooth surface expansion sleeve rebound, the smooth surface support is shrunk, parts are detached, and machining is completed. The device has a high-rigidity integral structure and local thin-wall support, can ensure high-rigidity support on a processing surface, avoids the influence of factors such as local cutter relieving and clamping deformation on the processing precision, and is extremely high in processing precision of the thin-wall outer diameter.

The utility model discloses a clamp for roller skin machining, and relates to the field of machining tools. The device comprises an outer barrel, barrel plugs are arranged on the two sides of the outer barrel in a sealed mode, linear channels are evenly formed in the wall of the outer barrel in the circumferential direction and communicate with the outer barrel, pistons are coaxially arranged on the two sides in the outer barrel, and the pistons move in a reciprocating mode relative to the outer barrel through driving pieces; supporting pads are evenly arranged on the peripheral side of the outer cylinder and are correspondingly matched with the linear channels in number and position, supporting arms are rotationally hinged to the two ends of each supporting pad, and the supporting arms penetrate through the linear channels and are rotationally hinged to the piston. The lifting device has the advantages that after the outer barrel is inserted into the roller skin, the hinged supporting pads are scattered along the outer barrel so as to be synchronously supported on the inner wall of the roller skin, after the outer barrel is coaxially connected to the roller skin, the outer barrel is lifted to a machine tool, the outer barrel can be conveniently clamped and fixed, operation is easy and convenient, and use is flexible and efficient.

The utility model relates to the technical field of aluminum radiator machining auxiliary parts, in particular to an aluminum radiator machining positioning device which comprises a supporting platform and an outer sleeve shaft, the outer sleeve shaft is fixedly supported on the supporting platform, one end of the outer sleeve shaft is provided with a first tensioning cylinder, and the other end of the outer sleeve shaft is provided with a second tensioning cylinder. A first tensioning head is inserted into the first tensioning cylinder, a second tensioning head is inserted into the second tensioning cylinder, the positioning device further comprises a driving assembly, and the driving assembly can drive the first tensioning head and the second tensioning head to be close to each other and can drive the first tensioning head and the second tensioning head to be away from each other. Compared with a traditional one-end tensioning and positioning mode, the two ends of the aluminum radiator arranged on the outer sleeve shaft in a sleeving mode are tensioned and positioned, and the positioning effect is better.

The invention relates to the technical field of mechanical positioning, and particularly discloses a high-precision automatic positioning device which comprises a driver, a driving rod, a positioning pin and a positioning seat with a guide hole, the positioning pin is mounted on the driving rod and slidably connected in the guide hole, one end of the positioning pin is provided with circumferentially distributed elastic blocks, and the other end of the positioning pin is slidably connected in the guide hole. The tensioning block is matched with the elastic block in a wedge surface / conical surface mode, the elastic block is located on the outer side of the tensioning block in the circumferential direction, the driving rod pushes the positioning pin to move, the tensioning block and the positioning pin are coaxial, and after the tensioning block expands the elastic block, the elastic block abuts against the guide hole. According to the positioning method, a high-precision automatic positioning device needs to be used for positioning a to-be-positioned part, and the positioning method comprises the following steps that the positioning pins are controlled to be inserted into the positioning holes, and then the tensioning blocks are controlled to continue to move towards the positioning holes so as to expand the elastic blocks. The scheme is used for solving the problem that the positioning precision is difficult to ensure due to a gap between the positioning pin and the positioning seat.

The invention discloses an intelligent clamp for an intelligent manufacturing production line and a clamping method, and belongs to the technical field of clamps. According to the method, a body is of a cone frustum structure, the lower end of the cone frustum structure is connected with a connecting flange, and an annular shell is arranged on the periphery of the cone frustum structure; the circular truncated cone structure is provided with a bonding expansion sleeve for clamping a workpiece and a calibration piece, a pull rod and a piston for implementing measurement are arranged in the circular truncated cone structure, various circuits and related parts are arranged in the annular shell, and the flange is used for being connected with a machine tool. The clamp can achieve the purpose of accurately monitoring the machining state and the part clamping force in the precise machining process in real time.

The utility model discloses a ball clamping tool, relates to the field of ball valve ball machining devices, and solves the problems of inconvenience in clamping and the like. Comprising a clamping rod, a central shaft rod, an expansion column and an expansion pressure plate, the expansion column at least comprises two column blocks which are surrounded and separated from each other, and the two sides of each column block in the axial direction are respectively provided with a sunken inclined plane which is sunken inwards; the outer side end of the clamping rod is provided with a first external expansion slope, the center of the expansion pressing disc is provided with a second external expansion slope, and the first external expansion slope and the second external expansion slope are matched with the inwards-sunken slopes on the two sides of the expansion column in a slope staggered mode respectively. And the expansion pressure plate is pressed to move towards the direction of the clamping rod and forces the column block to move outwards in the radial direction through staggered matching of the inclined surfaces, so that the outer peripheral surface of the expansion column abuts against the ball to fix the ball. The clamping rod can be directly installed on a chuck of a machine tool, the expansion pressing plate is pressed in through an ejector pin or an ejector rod and the like, the original design of the machine tool does not need to be changed, and therefore machining cost is reduced, and operation is simpler and more convenient.

The invention provides a manufacturing method of weak-rigidity thin-wall long-cylinder parts, aims to solve the problems that the weak-rigidity thin-wall long-cylinder parts cannot bear axial pressing force, are easy to vibrate and deform during machining, cannot guarantee the size and form and position precision of the parts and the like, and relates to the field of machining. In the manufacturing technological processes of forward and reverse turning of a right end inner hole annular groove, turning-around finish turning of the left end of an inner hole, forward and reverse turning of a left end inner hole annular groove, forward and reverse turning of an outer ring annular groove and finish turning of two end faces, an annular groove working procedure machining method is adopted, and the cutting force during annular groove machining is effectively reduced; the problem that turning deformation of the inner circle and the outer circle of the weak-rigidity thin-wall long-cylinder part is large is solved, finally, the machining efficiency is improved, the machining quality is guaranteed, and the stricter precision requirement of the high-precision weak-rigidity thin-wall long-cylinder part is met.