68results about How to "Guaranteed straightness" patented technology

The utility model relates to the technical field of steel wire automatic forming machines, in particular to a full-automatic steel wire wavy line forming machine which comprises an installation frame, a line pressing assembly is arranged at the bottom of the installation frame, and an extension module is arranged on the side face of the installation frame. The full-process automatic production of the wavy line formed by the steel wire can be completely realized, each part of the machine is simple and practical, the machine has the characteristics of low cost and high efficiency, the labor cost is saved, the risk of industrial injury is avoided, the machine is an advanced specialized machine, the driving motor is used as a power source, and the production cost is reduced. The driving motor drives the first gear and the second gear to rotate through the transmission structure, then conveying of the steel wire and forming of the wavy line are achieved, and the straightness of the steel wire in the conveying process and the regular shape of the formed wavy line are guaranteed through arrangement of the first straightener and the second straightener.

The application relates to the technical field of zirconium-niobium alloy material processing, in particular to a preparation method of a large-diameter zirconium-niobium alloy pipe for nuclear industry, which comprises the following steps: S1, mixing nuclear-grade sponge zirconium and niobium scraps, or mixing zirconium-niobium alloy, zirconium dioxide and iron; melting the mixture and preparing a zirconium-niobium alloy ingot; S2, sequentially performing large deformation forging in a beta single-phase zone and an alpha+beta two-phase zone; S3, drilling a central hole in the axial direction of a round-forging blank; quenching in the beta single-phase zone; S4, coating an anti-galling agent on the surface of the central hole and heating to prepare a pipe blank in the mode of cross piercing; S5, performing periodic forging and rolling on the pipe blank; S6, annealing the hot-rolled pipe twice; and straightening the hot-rolled pipe after the second-stage annealing. The zirconium-niobium alloy pipe has uniform microstructure, good mechanical properties and corrosion resistance, the production direction of the brittle hydride is nearly parallel to the circumferential direction of the pipe, and brittle damage of the pipe wall thickness caused by the crack propagation of the hydride is avoided.

The utility model relates to gas pipe correction technical field especially, it relates to a kind of PE gas pipe correction clamp, solve the problem that the pipe wall is prone to local indentation, flattening or stress concentration, and new plastic deformation is easily caused in the clamping area of pipe body when only applying correction force from outside in prior art due to the certain flexibility and elasticity of PE material.A kind of PE gas pipe correction clamp, including frame, both sides of frame are fixedly connected with side plate, and the opposite side of two side plates is equipped with arc clamping plate, and the bottom of two arc clamping plates is slidably connected between the bottom of frame, both sides of frame are equipped with support rod, and the one end of two support rods is respectively through both sides of frame.The utility model effectively solves the problem that pipe wall is prone to flattening, indentation or uneven stress due to lack of inside support in existing correction clamp, realizes the simultaneous support and uniform stress of inside and outside of PE gas pipe.

The present application relates to the technical field of rail production process, in particular to a production method for improving wear resistance of channel rail for tram. After universal rolling, compressed air is applied to the channel rail for forced cooling in parts. In the first stage, supersonic air jet cooling is applied to the rail head tread, rail head running edge, rail head left side, rail lip and rail bottom to control the cooling speed of each part. In the second stage, supersonic air jet cooling is continuously applied to each part of the rail to control the cooling speed of each part. In the third stage, subsonic air jet cooling is applied to each part of the rail to control the cooling speed of each part, and then the rail is naturally cooled in air. The quenching effect of the channel rail tread and running edge is improved, the pearlite interlamellar spacing is refined, the rail strength and hardness are improved, and the channel rail has good wear resistance.

The utility model relates to the technical field of solid state disk testing, and discloses a plugging mechanism for a hot plugging test of a solid state disk, a plugging force testing machine is used for carrying out the hot plugging test on the solid state disk in a matching manner, and the top of the plugging force testing machine is provided with an installation platform. The right side of the top of the mounting platform is provided with a clamping mechanism which is matched with the hot plug detection unit for clamping and positioning, and the hot plug detection unit is provided with a detection socket which is matched with the insertion detection of the solid state disk; the clamping mechanism is used for clamping and positioning hard disk racks of different sizes, the clamping mechanism is installed on a lifting platform of the lifting mechanism, the lifting mechanism is used for adjusting the height of the hard disk racks, and the hard disk racks are used for clamping and positioning solid state disks; the rotary reciprocating mechanism converts rotation into linear motion and reciprocatingly inserts and pulls the plugging port of the solid state disk into and out of the hot plug detection unit, so that automatic plugging detection of the solid state disk can be realized, and the automation degree is high.

The application discloses a method for guaranteeing the concentricity of a rotary tank, and belongs to the technical field of rotary tank preparation. The method comprises three key procedures: firstly, the ellipticity of an inner cylinder is guaranteed by supporting the cylinder through a supporting round tool, and the straightness of the inner cylinder is guaranteed; then, the concentricity of a jacket cylinder and the inner cylinder is guaranteed by controlling the welding operation of the jacket cylinder and a blocking plate; finally, the concentricity of a head, a central shaft and the cylinder is guaranteed by real-time detection of the concentricity of the workpieces to be connected during assembly and real-time adjustment, and the concentricity of a rolling ring pad plate, a gear ring flange and the cylinder is guaranteed, so that the finally manufactured rotary tank has high-precision concentricity. The specific structure of the supporting round tool is provided, and a better supporting round effect can be achieved; a laser centering instrument for detecting the concentricity of the cylinder and the head and a concentricity adjusting device for real-time adjustment are provided, the position and the offset amount of the maximum head offset can be determined, based on which, the adjusting device can be adjusted in a targeted manner, and the adjusting distance is the shortest.

The utility model discloses a cabinet board fixed distance cutting mechanism, and a plurality of pulleys are equidistantly arranged on the workbench, a scale is arranged on the right top of the workbench, a clamping structure is arranged at the bottom center of the workbench, and a driving fixing structure is arranged on the back side of the workbench. The utility model relates to the technical field of board processing mechanical equipment, and the scale arranged on the right side of the workbench can quickly and accurately measure the board, the first lead screw, the light shaft and the sliding block are combined in the driving fixing structure, the lifting frame can stably walk up and down along the straight line, the driving fixing structure integrates the driving motor, the lead screw and the cutting motor, realizes the mechanization and automation of the cutting process, and the operator only needs to push the walking base to move left and right to complete the cutting. The clamping structure at the bottom of the workbench drives the second lead screw by rotating the handle, moves the clamping plate, and tightly presses the board on the workbench from the left and right sides.

The utility model relates to an online accompanying transverse laser cutting machine which comprises a rack, a workbench, a positioning roller set, a laser cutting head and a dynamic adjusting system. The workbench is connected with a laser cutting head through a linear module, the laser cutting head can move in the width direction of a steel plate, and two positioning roller sets are symmetrically arranged on the feeding side and the discharging side of the workbench below the laser cutting head. The dynamic adjusting system enables the workbench to be connected with the rack in a sliding mode, synchronously tracks the moving speed of a steel plate under the control of the servo driving unit and comprises the servo driving unit, a transmission shaft and a linear guiding unit, and the transmission shaft and a threaded transmission sleeve in the middle of the workbench form a thread pair. The steel plate cutting edge is prevented from inclining through the dynamic adjusting system, material waste and production cost are reduced, and production efficiency is improved.

This invention provides a method for processing an ultrafine lithotripsy probe, comprising the following steps: S1. Inserting one end of the probe body into the mounting hole of the probe base to complete the initial assembly; S2. Placing the initially assembled ultrafine lithotripsy probe into a pressing device and fastening the probe body to the column of the pressing device, so that the probe base is located inside the heating coil of the heating machine; S3. Starting the heating machine to heat the probe base, and when the probe base reaches a predetermined state, using the pressing device to press the probe body into the mounting hole to a predetermined depth; S4. After pressing, removing the ultrafine lithotripsy probe and performing a cooling treatment. The ultrafine lithotripsy probe produced by this processing method has the advantages of tight assembly between the probe body and the probe base, low ultrasonic transmission loss, and the connection between the probe body and the probe base is not easily broken under high-frequency ultrasonic vibration, resulting in high lithotripsy efficiency.

The utility model relates to a kind of glass fiber's compression moulding device, belong to glass fiber processing technical field, including base, fixedly connected to the column of base top, fixedly connected to the lower mould of base top and fixedly connected to the mounting plate of column top, the upper surface of the mounting plate is provided with the compression moulding mechanism extending to its lower surface, the upper surface of the lower mould is provided with material taking structure.The glass fiber's compression moulding device, when telescopic cylinder contracts, the upper die is lifted during the process, driving rod is driven to move upward synchronously, transmission rod moves synchronously with swing arm, drives mounting sleeve and material receiving seat to move to the direction of lower mould, until material receiving seat moves to the upper surface of lower mould, catch glass fiber product after compression moulding, realize the automatic reciprocating movement of material receiving seat, can complete material taking operation without manual intervention, improve production efficiency, reduce labor intensity, reach the advantage of high production efficiency.

The application belongs to the technical field of steam turbine rotor processing, in particular to a drill jig for steam turbine rotor steam balance hole processing, which comprises a drill jig body, a bushing, a quick-change drill sleeve, a cylindrical pin and a set screw; the drill jig body is provided with a rectangular groove in the thickness direction; both sides of the bottom of the drill jig body are provided with through holes; the bushing is fixedly connected to the inside of one side of the through hole; the inside of the bushing is provided with the quick-change drill sleeve. The drill jig body with a "door" type structure is matched with the rectangular groove, which can quickly realize the preliminary positioning of the drill jig at the edge of the impeller, the radially limiting of the outer circle of the impeller is matched with the symmetrical distribution of the cylindrical pin, the center of the quick-change drill sleeve is accurately aligned with the positioning line, and the hole position deviation problem caused by the positioning deviation in the traditional processing is avoided; at the same time, the set screw at the bottom is stably pressed against the surface of the impeller spoke through the threaded connection, so that the drill jig can remain stable during the drilling process and prevent displacement caused by vibration.

The present application relates to the technical field of machining tools, in particular to a numerical control machining tool for long shaft parts, comprising a tool main body, two sets of clamping assemblies, two sets of connecting assemblies, a driving assembly and two sets of pushing assemblies. At least one set of the connecting assemblies is arranged to slide along the axial direction. An elastic member one is arranged between the connecting assembly and the clamping assembly, and the elastic member one is stretched by moving the connecting assembly to apply an axial tension to the part. The pushing assembly is arranged in the clamping assembly and comprises a pushing member and a driving member one, and is used to abut against the end face of the part. The present application further comprises an auxiliary assembly and a limiting assembly. When the clamping assembly is released to avoid the end machining tool, the limiting assembly locks the position of the pushing member, and cooperates with the auxiliary assembly to assist the fixing of the part in the radial and axial directions. The axial stretching mechanism effectively compensates for the thermal deformation of the long shaft part and suppresses the machining vibration.

The invention discloses a rail groove pit center line rapid marking device and a marking method thereof.According to the rail groove pit center line rapid marking device and method, an elastic marking assembly and a walking assembly are arranged on the lower portion of a marking shell, deviation preventing assemblies are arranged on the two sides of the upper portion of the marking shell, and the center line can be rapidly drawn in a rail groove pit through one-man operation; the marking efficiency of the center line of the track groove pit is greatly improved, a large amount of manpower and material resources are saved, and the production and construction cost is reduced.

This utility model relates to an anode, comprising an anode plate, an anode plate frame, a gas collecting chamber, a first diaphragm, and a second diaphragm. The anode plate frame defines an anode plate receiving space with front and rear openings. The anode plate is placed within this space, and the gas collecting chamber is located above and communicates with it. An acid mist outlet is provided on one side of the gas collecting chamber. The first diaphragm covers the front end of the anode plate frame to close the front opening of the anode plate receiving space, and the second diaphragm covers the rear end of the anode plate frame to close the rear opening of the anode plate receiving space. Furthermore, the periphery of the first diaphragm is detachably and sealingly connected to the front end of the anode plate frame and the front wall of the gas collecting chamber, and the periphery of the second diaphragm is detachably and sealingly connected to the rear end of the anode plate frame and the rear wall of the gas collecting chamber. This design avoids a series of adverse effects caused by the diaphragm contacting the anode and cathode during use.

This utility model discloses a filter fastening and adjustment mechanism for a bag filter dust collector, including a tube sheet with a through hole inside. An outer annular groove is formed above the outside of the through hole inside the tube sheet, and the outer annular groove communicates with the through hole. A filter bag is placed inside the through hole of the tube sheet. The filter bag includes a bag body and a bag opening ring edge, which are sewn together. The bag opening ring edge is located inside the outer annular groove. A frame mounting plate is provided above the bag opening ring edge, and the frame mounting plate is annular. A fastener is provided above the frame mounting plate, and the fastener includes a lower pressure plate, an upper pressure plate, and a rubber ring. The rubber ring is fixedly installed above the lower pressure plate. This mechanism achieves filter fastening capability, increases practicality, and solves the problem that traditional bag filter dust collectors often use simple bolt and nut fastening or spring compression methods, resulting in poor practicality.

The embodiment of the utility model provides a guide rail straightening device, and relates to the field of tool equipment. The guide rail straightening device comprises a plurality of fixed bases, a connecting structure and a straightening structure, the multiple fixing bases are sequentially distributed and used for containing guide rails to be straightened. The straightening structure comprises straightening blocks and a first connecting plate, the two sides of the guide rail are fixed through the straightening blocks, and the first connecting plate is used for fixing the straightening blocks to the fixing base; and the connecting structures are connected with the two adjacent fixed bases, so that the two adjacent fixed bases are fixed. According to the guide rail straightening device provided by the embodiment of the utility model, the quenched guide rail can be rigidly fixed through the plurality of straightening blocks, so that the guide rail is prevented from being bent, and the straightness of the guide rail after quenching and cooling is ensured.

The utility model discloses an integrated cooker head spraying device which comprises a workbench and a liquid storage tank, and the liquid storage tank is connected with a spraying head through a liquid conveying pipe; a supporting frame is arranged on the workbench, a lifting mechanism is arranged on the supporting frame, a linear module is connected to the supporting frame in a sliding mode, and the lifting mechanism drives the linear module to reciprocate up and down; the linear module is connected with a mounting bracket, the linear module is connected with a mounting bracket, and the linear module drives the mounting bracket to reciprocate left and right; an angle adjusting mechanism is arranged on the mounting bracket and comprises a first servo motor, a first bevel gear and a second bevel gear, the first servo motor is connected with the first bevel gear, the first bevel gear is in meshed connection with the second bevel gear, the second bevel gear is rotationally connected with the mounting bracket through a rotating shaft, and the spray head is fixed on the rotating shaft. The nozzle is novel in structure, the inclination angle of the nozzle is flexible and adjustable, different parts of the integrated cooker head can be sprayed, and spraying is comprehensive.

The utility model discloses a concrete shrinkage joint positioning cutting robot relates to road construction technical field. Including concrete floor cutting joint machine, still include positioning robot, and positioning robot carries concrete floor cutting joint machine positioning cutting concrete shrinkage joint, and positioning robot includes cutting guide shuttle, mobile guide unit and sets up cutting depth positioning unit on cutting guide shuttle, cutting guide shuttle is fixedly connected between concrete floor cutting joint machine, and mobile guide unit is used to guide cutting guide shuttle moving direction. The device advances through positioning robot guide concrete floor cutting joint machine to guarantee the linearity of concrete shrinkage joint cutting, guarantees the cutting quality, and through cutting depth positioning unit to the depth detection of the shrinkage joint after cutting to the position of not meeting the cutting depth requirement carries out re -cutting to further improve concrete shrinkage joint cutting quality.

The utility model discloses an improved compact type electric cylinder which comprises a servo motor, a planetary reducer is installed at the lower end of the servo motor, a gear box is installed at the lower end of the planetary reducer, a bearing seat is arranged at the upper end of the gear box and located on one side of the planetary reducer, and the bearing seat is connected with the planetary reducer. A cylinder barrel is installed at the upper end of the bearing seat, a front flange is arranged at the upper end of the cylinder barrel, a limiting switch is embedded in the outer surface of an anti-rotation block pressing plate, a ball screw is installed in the cylinder barrel, the ball screw is sleeved with a lead screw nut, and an anti-rotation block is installed on the outer side of the lead screw nut. A guide shaft piston rod is connected to the anti-rotation block in an inserted mode, and an outer screw joint is installed at the upper end of the guide shaft piston rod. Through reasonable layout of the servo motor, the planetary reducer, the gear box and other parts, the overall occupied space is reduced, and compared with a traditional large-tonnage electric cylinder, the structure is more compact, and the electric cylinder is suitable for the working environment with limited space.

This invention provides a flexible ball screw transmission mechanism and a measuring machine. The flexible ball screw transmission mechanism includes a ball screw, a nut, and a crossed roller slide assembly. The crossed roller slide assembly includes a first mounting slide, a second mounting slide, a third mounting slide, and a first and a second crossed roller linear guide rail arranged perpendicularly to each other. The two rails of the first crossed roller linear guide rail are respectively connected to the first and second mounting slides. The two rails of the second crossed roller linear guide rail are respectively connected to the second and third mounting slides. The first mounting slide is fixedly connected to one end face of the nut, and roller bearings are installed on both sides of the bottom of the first mounting slide. A connecting seat is fixedly connected to the third mounting slide. This flexible ball screw transmission mechanism, where the nut and connecting seat are connected by the crossed roller slide assembly, ensures smooth and accurate transmission, improving the measurement accuracy of the measuring machine.

The utility model relates to a printing roller placing rack, which comprises a base and an abutting assembly, the abutting assembly comprises a bottom plate, a first abutting block and a second abutting block, the bottom plate is arranged on the base, the first abutting block and the second abutting block are both movably connected to the bottom plate, a clamping hole for accommodating a printing roller is formed between the first abutting block and the second abutting block, and the first abutting block and the second abutting block are movably connected to the bottom plate. The base comprises a first fixing part, a second fixing part and a telescopic part, grooves are formed in the first fixing part and the second fixing part, the telescopic part telescopically slides in the grooves, and a driving assembly is arranged on the bottom plate. The size of the clamping hole is adjusted by arranging the first abutting block and the second abutting block on the bottom plate, and the first abutting block and the second abutting block do opposite movement or back-to-back movement on the bottom plate, so that the plate roller containing frame can adapt to plate rollers of different lengths and different diameters, different containing requirements are met, and the use performance of the plate roller containing frame is greatly improved.

The application provides a facade modeling template for a cantilever structure and a construction method thereof, and belongs to the technical field of building templates; the facade modeling template comprises a side mold frame and an adjusting assembly; the side mold frame comprises a main frame and an extension section; the extension section is vertically connected to the bottom end of the main frame, and the end away from the main frame is provided with a lap joint section; the main frame comprises oppositely arranged inner and outer walls; the inner wall has a concave-convex structure; and a plurality of adjusting assemblies are movably arranged on the outer wall. The concave-convex structure is arranged on the inner wall of the main frame through the side mold frame, so that the cantilever structure and the facing structure are integrated and constructed, the construction process is simplified, and manpower, material resources and construction time are effectively saved; the extension section can effectively avoid the slurry leakage phenomenon during concrete pouring, so as to improve the construction quality and durability of the cantilever structure. The adjusting assembly can be used for accurately adjusting the perpendicularity of the main frame.

The utility model discloses a screw clamping device suitable for screw machining, and belongs to the technical field of screw machining. The device is composed of a supporting frame, a rotating mechanism and a fixing mechanism. The rotating mechanism comprises a circular track, a movable block, a first rotating wheel, a second rotating wheel and the like, stable supporting and guiding are provided for the movable block through rolling fit of the double rotating wheels and the inner ring and the outer ring of the circular track, the problem that rotation is unstable due to the fact that one end is suspended during screw machining is solved, the straightness of a rough machining workpiece is guaranteed, and the machining precision is improved. The fixing mechanism comprises a mounting plate, a threaded rod, a movable seat, a clamping rod and the like, a rotating rod inserted into a stirring hole of the threaded rod is rotated, the movable seat can move in a sliding groove, the clamping rod is driven to be opened and closed, the clamping force can be flexibly adjusted according to the size of the screw, the screw is stably clamped, and displacement or shaking of the screw during machining is avoided. And the rotating mechanism and the fixing mechanism work cooperatively, the screw machining precision is effectively guaranteed, the product quality is improved, and important practical value is achieved.

The utility model relates to a positioning device of vertical frame belongs to the field of automobile manufacturing technology, it includes the fixed frame and two stand column units for positioning vertical frame, the vertical frame includes bottom crossbeam, top crossbeam and two frame stands between bottom crossbeam and top crossbeam, bottom crossbeam is set up on the fixed frame through the sliding mechanism, under the action of sliding mechanism, vertical frame can move between initial position and jointing position, the stand column unit is located in the side of frame stand for positioning frame stand. The sliding mechanism includes rack, gear and sliding motor of driving gear rotation that are engaged with rack, the utility model simple structure, convenient operation, the positioning of vertical frame is stable, safe and reliable, guarantees the positioning accuracy of vertical frame, and different pincers can be installed on vertical frame and positioned, to satisfy the flexible jointing production requirement of automobile.

The utility model discloses a drawing machine tool for machining a metal hexagonal rod, and belongs to the field of hexagonal rod machining. A drawing machine tool for metal hexagonal rod machining comprises a base, a driving component is fixed to the upper side of the base, a resistance heater is arranged on one side of the driving component, and a machining assembly is fixed to one side of the resistance heater. Meanwhile, an air cylinder and a pushing block in the driving component accurately apply pushing force, it is ensured that the hexagonal rod is evenly stressed in the drawing process, the straightness is guaranteed, then the six faces are preliminarily and finely ground and formed in cooperation with subsequent three sets of grinding components, possible section shape deviation is corrected, the forming quality is improved, and the product quality is improved. The problem that part of the machined hexagonal rod is poor in quality is solved.

The utility model discloses an aluminum alloy special-shaped part machining clamp in the related technical field of special-shaped part machining clamps, which comprises an upper supporting plate and a clamp foundation plate, a supporting vertical plate is arranged between the upper supporting plate and the clamp foundation plate, a first supporting seat is fixedly arranged at one end of the upper supporting plate, and a second supporting seat is fixedly arranged at the other end of the upper supporting plate. A first supporting seat is fixedly arranged at one end of the upper supporting plate, a first clamping hydraulic rod is fixedly installed on the first supporting seat, a first clamping seat is arranged at the telescopic end of the first clamping hydraulic rod, a second supporting seat is fixedly arranged at the other end of the upper supporting plate, and a second clamping hydraulic rod is fixedly installed on the second supporting seat. The clamping device is provided with the first clamping seat and the second clamping seat, aiming at the particularity of the main body structure of the special-shaped part, the clamping seats are used for clamping and fixing the outer cylindrical surfaces at the two ends of the main body of the special-shaped part, the first clamping seat and the second clamping seat are both of a V-shaped structure, and automatic positioning is carried out by taking an outer circle as a reference in the clamping process; and the straightness of the special-shaped part in the clamping process is ensured.

The utility model discloses a kind of production auxiliary systems of colloidal emulsion explosive charging machine, including charging machine body, charging machine body includes rotating platform and multiple groups of buckle mechanism connected with rotating platform, multiple groups of buckle mechanism are evenly arranged on rotating platform along the circumferential direction, the middle part of adjacent two groups of buckle mechanism is equipped with cartridge receiving and pushing assembly, cartridge receiving and pushing assembly includes L type connecting rod and receiving plate, the upper end of L type connecting rod is connected with rotating platform, the bottom of receiving plate is connected with the upper end of another end of L type connecting rod, the upper end height of receiving plate is with the bottom end height of cartridge when charging machine body works, receiving plate and multiple groups of buckle mechanism are on same circumference.

This invention relates to the technical field of steering gear housing positioning devices, specifically a five-axis linkage floating positioning precision machining device for steering gear housings. It includes a lifting mechanism, an in-housing positioning mechanism mounted on the lifting mechanism, a housing hole alignment mechanism mounted on the in-housing positioning mechanism, and a housing blank clamped within the in-housing positioning mechanism and the housing hole alignment mechanism. The in-housing positioning mechanism includes a column head, with a column installed inside the column head, and a second hydraulic component installed inside the column head. Four stabilizing pads arranged in a cross-shaped structure around the column head and column are positioned on the outside of the column head. With the operation of the second hydraulic component, the lifting and lowering of the slide block drives multiple outriggers to achieve linkage. Ultimately, the four evenly distributed stabilizing pads quickly calibrate and fix the inner arc groove of the inverted housing blank. The internally fixed housing blank avoids interference surface problems, facilitating improved surface machining accuracy and speed.