20results about How to "High centering accuracy" patented technology

The utility model relates to the technical field of assembly or welding process equipment, in particular to a roller vertical clamping and positioning tool for assembly and welding, which comprises a pit arranged on an operation site, a centering positioner arranged at the bottom of the pit and a centering clamp arranged on the periphery of the opening of the pit. The centering positioner comprises a centering seat ring and a conical positioning hole formed in the upper end face of the centering seat ring. The centering clamping device comprises a pair of synchronous clamping devices and a pair of V-shaped clamping blocks, wherein the pair of synchronous clamping devices is fixed to the periphery of the pit opening portion of the pit and arranged on the two sides of the periphery of the pit opening portion respectively, and the pair of V-shaped clamping blocks is correspondingly arranged at the front ends of the pair of synchronous clamping devices and used for clamping the outer circle of a roller. According to the utility model, vertical hoisting during roller assembling and welding is facilitated, and the convenience and the production efficiency of roller assembling operation or roller welding operation are improved.

This invention discloses a cold forging device and method for high-pressure oil pipe sealing cones based on a vertical hydraulic press. The cold forging fixture includes an upper die and a lower die. The upper die is connected to the head mold by a connector, allowing for adaptation to different products by changing the head mold of different specifications, thus offering strong versatility. The lower die is assembled layer by layer from bottom to top, consisting of a pad, support, body, clamping block, pressure ring, and clamping nut. The parts are connected by standardized methods such as cylindrical surface fit, conical surface fit, and threaded connection. Any worn or damaged part can be disassembled and replaced individually without replacing the entire set of molds, reducing maintenance costs and downtime. The forging method using this fixture effectively improves the forging quality and dimensional accuracy of high-pressure oil pipe sealing cones, significantly reducing the overall manufacturing cost. It can be widely used in the forging and forming of high-pressure oil pipe sealing cones for high-power diesel engines.

This invention relates to the field of vertical milling and turning technology, and discloses a vertical milling and turning composite machining center, including a machining table, a support frame, a vertical cantilever, a drive motor, and a drive shaft. A composite machining mechanism for switching machining types is mounted on the side of the vertical cantilever; a switching mechanism for changing the workpiece's motion state according to the machining type is provided below the composite machining mechanism; a spraying mechanism for changing the coolant's application according to the machining type is provided on the upper surface of the machining table; a clamping mechanism for fixing a ring-shaped workpiece is provided at the top of the switching mechanism; the composite machining mechanism includes a sliding frame plate, with two double-toothed plates slidably connected inside the sliding frame plate. This invention utilizes the forward and reverse directions of the vertical cantilever's lifting stroke to correspond to different machining actions, improving the continuity of actions and machining efficiency, and ensuring the positional stability and synchronization accuracy of the milling cutter and drill bit near the workpiece.

This invention relates to the field of positioning technology for thin-walled workpieces, and discloses a positioning device for preventing offset of thin-walled workpieces based on CNC machine tools. It aims to solve the technical problems of easy deformation during positioning of thin-walled workpieces and poor adaptability of traditional clamping blocks. The device includes a CNC machine tool body, a rotating chuck, an adjustment drive assembly, a push rod assembly, and a tensioning positioning assembly. A frustum-shaped push block converts rotational motion into linear motion via a screw and nut mechanism. This, in conjunction with a limiting assembly, drives the push rod assembly to synchronously and uniformly extend and retract radially, causing a spring steel sheet with a pre-positioned section to achieve curvature self-adaptation. The pre-positioned section is a sliding compensation arc surface section, adapting to thin-walled pipes of different diameters while maintaining surface contact. The device has two sets of staggered tensioning positioning rings, forming a full-circumferential, gapless support for the inner wall of the pipe. This device avoids stress concentration problems caused by line contact, effectively preventing deformation of thin-walled pipes, balancing positioning firmness and deformation prevention requirements, and significantly improving the processing qualification rate and production efficiency of thin-walled pipes.

The utility model discloses a conveyor centering mechanism, first long clamping arm is fixed on first sliding block, second long clamping arm is fixed on second sliding block, first long clamping arm includes fixed base, clamping plate and pressure sensor, fixed base and first sliding block fixed connection, clamping plate and fixed base are connected through spring, pressure sensor contact projects on fixed base, pressure sensor and PLC controller communication connection, PLC controller control electric cylinder servo motor, first long clamping arm and second long clamping arm are symmetrical, and the left and right sides of base are equipped with guide rail, and first sliding block or second sliding block is driven along guide rail and moves by electric cylinder, and transmission guide rod includes first guide rod, second guide rod and third guide rod, the utility model discloses adopting the sliding centering structure of clamping arm cooperation transmission guide rod, and the two sides clamping arm clamps tightly by servo motor control, after centering is completed, the pressure sensor is triggered by compression spring, makes servo motor reverse, and clamping arm opens and resets, and the structure is simple, and the centering precision is high, can stable repeat work.

The invention belongs to the technical field of workpiece storage and feeding equipment, and particularly relates to a material sheet feeding method and system. A material rack is transferred to a feeding machine from a material warehouse through material transferring equipment; the material frame comprises a material table and a loading mechanism, the material table is used for stacking round material sheets, the round material sheets are driven by the loading mechanism to move towards the center of the material table to achieve centering, and the edges of the round material sheets are limited by the loading mechanism to achieve positioning; according to the feeding machine, the material frame is fixed to the lifting position through the positioning material table, the material frame is driven to move from the lifting position to the round material pieces on the top layer to be transferred to the feeding position, and automation, modularization and standardization of the round material pieces in the warehousing storage process, the discharging transfer process and the feeding process are achieved; and the tedious process that in the prior art, the circular material pieces need to be transferred for the second time is avoided, and therefore the feeding procedure is simpler.

The invention relates to the field of liquid or fluid sampling devices, in particular to an automatic loading and unloading device for a temperature measurement sampling probe and a using method thereof. The automatic loading and unloading device for the temperature measurement sampling probe comprises a robot (1) and a probe (2), a gripper (12) is arranged at the outer end of an operating arm (11) of the robot (1), the gripper (12) holds the probe (2), and the automatic loading and unloading device is characterized by further comprising a bottom plate (3), a guide cone (4) and a clamping device (5), and the bottom plate (3) is vertically arranged; the guide cone (4) is in a horn shape, the small round end of the guide cone (4) serves as the bottom to be fixed to the bottom plate (3), and the connector (13) is arranged above the top of the guide cone (4). The clamping devices (5) are movably buckled on the two sides of the bottom plate (3) through the inner ends and arranged below the bottoms of the guide cones (4), the spring shifting pieces (51) and the anti-skid plates (52) are sequentially embedded in the middles of the clamping devices (5), and anti-skid teeth (521) are arranged on the side faces of the anti-skid plates (52). The application method of the automatic loading and unloading device for the temperature measurement sampling probe comprises the steps of mounting and dismounting. The device is high in automation degree and reliable in assembly and disassembly.

The application discloses a motor rotor maintenance tool and belongs to the technical field of motor maintenance. The tool comprises a non-maintenance end tool and a maintenance end tool. The non-maintenance end tool fixes the transition disc to the motor end cover through the tooth bar, the non-maintenance end shaft head is connected to the slewing bearing inner ring through the first shaft head flange, and the slewing bearing outer ring is fixed to the transition disc, so that the axial positioning and the free rotation are decoupled. The maintenance end tool is fixed to the motor base end face through the tool base, the rotor shaft is supported by the adjustable roller, the limiting plate with the ball is arranged to cooperate with the limiting sleeve, and the axial movement of the rotor is limited. The tool takes the motor structure as the positioning reference, is favorable for improving the tool installation precision, reducing the radial space occupation, facilitating the disassembly and assembly, is suitable for narrow working conditions such as the wind power tower drum, and can reserve the driving module and the turning module installation interface to realize the on-site rotary machining.

The application discloses a barrel type fireproof coating automatic capping mechanism and relates to the technical field of fireproof coating production. The barrel type fireproof coating automatic capping mechanism comprises a workbench, a barrel roller way, a feeding roller, an adjustable support, a fixing base, a jacking mechanism, a positioning and capping mechanism and a driving mechanism. The positioning and capping mechanism is arranged below the fixing base in a liftable mode and is provided with a positioning station and a rotating capping station. When the positioning station is used, the positioning and capping mechanism is lowered to be attached to the barrel cap at the barrel opening of the coating barrel, so that the coating barrel is coaxially positioned with the positioning and capping mechanism. When the rotating capping station is used, the positioning and capping mechanism is rotated, and the capping sheet on the barrel cap is pressed against the barrel opening of the coating barrel. The barrel, the barrel cap and the capping sheet are coaxially positioned through the positioning and capping mechanism. The capping sheet can be extruded from top to bottom and then be rotated and extruded. The capping sheet can be uniformly pressed against the barrel opening, the attachment compactness is improved, and the capping effect is improved.

The invention discloses a positioning and clamping device for heat treatment of an aerospace high-strength structural part, relates to the field of aerospace component heat treatment tools, and solves the problems that an existing device is poor in adaptability and insufficient in clamping and fitting degree. The device comprises a positioning base table, side jacking limiting pieces and a clamping driving piece, the positioning base table is a basic support, and the side jacking limiting pieces are distributed in a bilateral symmetry mode and can be freely combined up and down to adapt to workpieces with different heights. The side jacking limiting piece comprises a sliding base, a jacking rod, a jacking head and an elastic jacking piece, the jacking head achieves angle self-adaption through a universal ball joint and is attached to the side face of a workpiece, and the elastic jacking piece provides continuous jacking force. The clamping driving piece drives the sliding seats on the two sides to move synchronously through the double-end lead screw, and stable movement and accurate positioning are guaranteed in cooperation with the guide assembly. The device is flexible in clamping and high in universality, deformation of workpieces during heat treatment can be avoided, and the clamping efficiency and the machining precision are improved.

This utility model discloses a sliding guide centering device for a high-speed wire rod finishing mill, belonging to the field of high-speed wire rod production technology. It is installed on the roll box panel of the guide seat and includes a first slide rail, a second slide rail, a third slide rail, a first centering clamping plate, a second centering clamping plate, and a third centering clamping plate. The first centering clamping plate is slidably connected to the first slide rail via a first slider, the second centering clamping plate is slidably connected to the second slide rail via a second slider, and the third centering clamping plate is slidably connected to the third slide rail via a third slider. The first centering clamping plate includes a first square plate and a first centering portion in the shape of an isosceles trapezoid. The second centering clamping plate includes a second square plate and two second centering portions in the shape of isosceles triangles. The third centering clamping plate includes a third triangular plate and a third centering portion in the shape of an isosceles trapezoid. All three centering clamping plates can be moved left and right and their positions can be finely adjusted forward and backward. This utility model solves the problem of unstable centering of the sliding guide in existing high-speed wire rod finishing mills.

The utility model provides a kind of tooling and assembly equipment, tooling is used for the centering of bushing, it includes first body and positioning pin, first body is equipped with lap joint portion near the side edge of bushing, lap joint portion is formed by the inward recess of one end of first body;When assembling top plate, lap joint portion is overlapped with the edge of bushing, positioning pin is fixedly connected first body and chamber cover, then top plate is fixed and set in the upper of bushing.This application is limited to bushing by first body, then fixedly connects first body and chamber cover by positioning pin, to further fix first body, chamber cover and bushing, to avoid bushing to move on chamber cover, so that the position of bushing is stable and unchangeable when assembling top plate, to make the center of chamber cover, bushing and top plate consistent, improve the centering accuracy of bushing and chamber cover, top plate, to improve the gap uniformity of bushing and top plate, to improve the uniformity of purge gas, to improve production quality, and improve production efficiency and service life.

This utility model relates to the technical field of pipe processing equipment, specifically a pipe beveling machine. The cylindrical body is provided with multiple clamping components on its periphery. Each clamping component includes a fixed seat, a cover, and a clamping block. The fixed seats are fixed to the outer wall of the cylindrical body, and the cover is fixed to the outer end of the cylindrical body. The cylindrical body has an internal cavity, and multiple springs are symmetrically arranged vertically within the cavity. The clamping block is inserted into the cavity and connected to the front end of each spring. The rear end of the clamping block has a horizontal bar that penetrates the cover, and the horizontal bar is slidably connected to the cover. The rear end of the horizontal bar has an arc surface. In terms of adaptive clamping, the dual mechanism of spring preload and hydraulic drive allows the equipment to automatically adapt to pipes of different diameters within a certain range, eliminating the need for manual clamp adjustment and greatly improving the equipment's versatility.

The utility model discloses a long nozzle centering manipulator for continuous casting, and relates to the technical field of metallurgical smelting. One end of the arm rod is connected with an adjusting seat, the other end of the arm rod is fixedly provided with a long nozzle clamping seat, the circumferential side surface of one end, close to the long nozzle clamping seat, of the arm rod is fixedly provided with a hanging ring, one end of the connecting rod body is connected with the hanging ring through a fastener, and the other end of the connecting rod body is a free end; hook points of an L-shaped structure are fixed to the circumferential side face of the hoop ring. The connecting rod body is arranged on the outer side of the arm rod, one end of the connecting rod body is connected with the end, close to the long nozzle, of the arm rod, the other end of the connecting rod body is the free end, in the actual centering process, one person operates the adjusting base, the other person operates the free end of the connecting rod body, and compared with an original mechanical arm, two-person operation can add an aiming direction to adjust the long nozzle; meanwhile, fine adjustment can be conducted through the connecting rod body, and the centering precision is greatly improved.

This invention discloses a hardness testing device for building materials, relating to the field of hardness testing technology for building materials. It includes: a hardness testing machine and a first hydraulic cylinder fixedly connected to the inner side of the hardness testing machine. A sliding plate is fixedly connected to the output end of the first hydraulic cylinder, and a testing indenter is disposed below the sliding plate. A support plate is fixedly connected to the inner side of the hardness testing machine below the sliding plate. This invention achieves hydraulic linkage adjustment through a centering adjuster in conjunction with a solenoid valve, piston sleeve, second piston rod, and first piston rod. It can automatically and synchronously fine-tune the horizontal and vertical positions of the testing indenter when heavy workpieces cannot be moved, eliminating the need for manual visual alignment, effectively avoiding human alignment errors, simplifying the testing process, improving centering accuracy and testing efficiency, and overcoming the shortcomings of traditional equipment in accurately centering and testing heavy building materials, thus significantly improving the equipment's versatility.

This utility model discloses an intermediate shaft assembly for an electric loader gearbox, comprising cylindrical roller bearings, a spacer, a gear, and a shaft gear. The gear has an inner stop for positioning on the minor diameter of its internal spline. The spacer is located on the left side of the gear, and a cylindrical roller bearing is located on the left side of the spacer and at the other end of the shaft gear. The shaft gear has an outer stop for positioning on the right side of its external spline. The gear and shaft gear are connected by an involute spline, and are aligned and centered using the inner stop of the gear and the outer stop of the shaft gear to ensure coaxiality. This utility model has a simple and compact structure, high coaxiality between the intermediate shaft gear and shaft gear, and smooth meshing transmission. It solves the problem of abnormal noise in the gearbox during meshing transmission caused by reduced centering accuracy of the spline teeth due to heat treatment deformation of the involute spline connecting the intermediate shaft gear and shaft gear.

The utility model discloses a novel tool clamping mechanism for vertical lathe, including tool clamping mechanism main part and the gear disc subassembly on tool clamping mechanism main part, the gear disc subassembly includes male gear disc and female gear disc, male gear disc and female gear disc opposite side are provided with a plurality of toothed blocks and toothed groove respectively, male gear disc and female gear disc realize the assembly of both through the interlocking mode of toothed block and toothed groove, male gear disc and female gear disc center have big round hole for tool clamping mechanism main part to pass through. The tool clamping mechanism of device, adopt the mode of prior art BT50, cooperate gear disc interlock, both retain the centering accuracy of BT50 clamping mode, can improve the stability of tool repeated multiple clamping, can also make up the defect of BT50 heavy cutting deformation.

The utility model belongs to mechanical manufacturing technical field, especially point to a kind of ball valve welding fixed tool, comprising: pedestal assembly, including fixed pedestal and the two support plates of symmetric solid setting on it, and the clamping slot of supporting plate top has the valve body and valve cover;Radial limiting component, including the first limiting component of left side fixed valve body and the second limiting component of right side fixed valve cover;Axial compression assembly, including the lead screw of penetrating valve body and valve cover center, lead screw one end is successively set first bearing and first pressure nut, the other end is set second bearing and second pressure nut, two bearing inner rings are respectively abutted valve body and valve cover axial outer end face;Rotating two pressure nuts can push valve body and valve cover axial compression tight.The utility model is pushed axial compression tight by clamping slot receiving, radial limiting component fixed, lead screw and nut, realize the accurate centering and stable compression of valve body and valve cover.

The utility model relates to pipeline construction technical field discloses a socket and spigot type pipeline flexible interface precision centering device, including fixed frame one and fixed frame two, the detachable connection between fixed frame one and fixed frame two, the fixed frame one and fixed frame two front are all installed L type connecting plate, two L type connecting plates front are all slidingly connected with the connecting half ring, two the connecting ring plate front are all installed with centering horn half pipe no.

This utility model belongs to the technical field of wheel inspection equipment, specifically relating to a fully automatic wheel dynamic balancing inspection machine, including a first synchronous transmission component, a dynamic balancing inspection spindle, a positioning component, a second synchronous transmission component, and a correction mechanism. The second synchronous transmission component is mounted on a frame and located to one side of the first synchronous transmission component. The first and second synchronous transmission components are arranged parallel to each other. The correction mechanism is installed directly above the second synchronous transmission component and is used to adjust the position of the tire transmitted from the previous station. The dynamic balancing inspection spindle is installed inside the first synchronous transmission component, and the positioning component is installed outside the first synchronous transmission component. A lifting component that drives the first synchronous transmission component to move vertically up and down is provided at the end of the first synchronous transmission component near the second synchronous transmission component. This invention overcomes the shortcomings of the prior art, eliminates the need for manual installation, and improves the efficiency of tire dynamic balancing inspection.