18results about How to "Realize automatic centering" patented technology

This utility model relates to a plastic pipe hot-melt device, including a fixing block, a first heating pipe and a second heating pipe respectively fixedly disposed on both sides of the fixing block, the inner diameter of the first heating pipe being adapted to the outer diameter of the second heating pipe, and further including a first fixing component, a second fixing component, and a connecting component. The first fixing component includes two first arc-shaped plates and a first locking unit, the openings of the two first arc-shaped plates being opposite each other and spaced apart, and the first locking unit being connected to the two first arc-shaped plates and used to adjust the gap between the two first arc-shaped plates. The second fixing component includes two second arc-shaped plates and a second locking unit with the same structure as the first fixing component. The fixing block is located between the first fixing component and the second fixing component. This utility model avoids the risk of burns when heating plastic pipes and improves safety.

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 turning device for square steel used in elevator racks after rolling, belonging to the field of square steel turning technology. It aims to solve problems encountered by existing devices when machining square steel with large aspect ratios and poor rigidity, such as easy vibration in the middle section, interference from positioning and vibration coupling, low centering accuracy, and increased errors due to steel chip jamming. The device includes a turning equipment base, a machine tool guide rail base, a chatter suppression mechanism, a positioning and locking mechanism, and a flexible stabilizing mechanism. The chatter suppression mechanism slides synchronously with the tool holder adjustment table, and adaptively supports the middle section of the square steel through bimetallic strip thermal induction. A displacement sensor detects deformation in real time. The positioning and locking mechanism is linked by an electrical signal, driving the centering component to automatically center via a telescopic rod and gear rack. A metal conductive sheet contacts an electrical contact button to trigger an electromagnet, causing the magnetorheological fluid to harden and lock the ejector pin. The flexible stabilizing mechanism achieves radial stabilization through a triangular turntable and flexible support rollers, and synchronously links with an air duct to blow away steel chips. The three mechanisms work together to form a closed loop, improving machining accuracy and stability, and adapting to the large-scale machining needs of square steel for elevator racks.

This invention relates to the field of plastic packaging box processing technology, and discloses a waste edge trimming device for processing plastic packaging boxes. The device includes a main body, a frame connected to the main body, a crossbeam connected to the top of the frame, a servo motor mounted on the crossbeam, an output shaft connected to the servo motor, a rotating rod connected to the end of the output shaft, a support plate fixed in the frame, a guide assembly mounted on the support plate, a slider slidably fitted on the rotating rod, a connecting plate connected to the bottom of the slider, a cutting assembly mounted below the connecting plate, and a base mounted on the main body, with a centering assembly installed in the base. This invention features a replaceable guide assembly to adapt to the contours of packaging boxes of different specifications, matching the straight edges and rounded corners of the box for trajectory cutting. By changing the corresponding guide frame, it can adapt to plastic packaging boxes of different sizes and with different rounded corners. The centering assembly, using a dual-drive plate and an end-face ratchet, achieves automatic centering and step-by-step clamping of the plastic packaging box, improving the stability during box cutting.

The application discloses a high-rigidity linear sliding rail with automatic centering and four-direction load capacity, and particularly relates to the technical field of linear sliding rails, and comprises a guide rail, a sliding block is slidably arranged on the top of the guide rail, and a transmission unit is arranged on the inner side top end of the sliding block and comprises two groups of upper load bearings arranged in a symmetrical mode. The four-column circular-arc ball groove and the 45-degree contact angle of the steel ball can balance the four-direction load of the radial direction, the reverse radial direction and the horizontal and vertical directions, and realize automatic centering. Four groups of pre-pressing clamping positioning blocks are arranged between the sliding block and the bottom end of the guide rail, so that the installation precision and the operation stability of the sliding block on the guide rail can be obviously improved, the deviation and vibration in the sliding process can be further inhibited, the accurate positioning and the guiding constraint for the linear motion can be continuously provided, the high-precision smooth sliding of the sliding block along the guide rail axis direction is realized, and the positioning precision and the motion smoothness in the linear transmission process are double-protected.

This invention relates to the field of cutting equipment technology, and proposes a CNC cutting device for heat exchanger tubes and its high-precision cutting method. The device includes a base, on which a first support plate, a second support plate, and a third support plate are arranged along its length. The first support plate is slidably connected to the base, while the second and third support plates are fixed to the base. In this invention, a third driving mechanism precisely controls the rotation of a second turntable. The rotation of the second turntable drives a stop bar to move within a limiting groove, pushing a support to rotate around a third hinge axis. This causes the plasma spray direction of the plasma gun to be tangential to the tube wall. In traditional vertical cutting, after the plasma penetrates one side of the tube wall, a reflecting surface forms on the other side, causing plasma collision. This invention, however, uses tangential angle cutting, causing the plasma beam to spray along the tangential direction, avoiding collision and thus controlling the cutting gap. Compared to traditional methods, this improves cutting accuracy.

The utility model discloses a kind of electric porcelain dry blank servo centering positioning fixture, including combined type positioning mechanism and lifting device;Combined type positioning mechanism includes servo motor and arc centering clamp rod, at least one pair of arc centering clamp rod is oppositely arranged and is driven by servo motor, for clamping blank head outer circle;Lifting device includes sliding tray and lifting cylinder;Sliding tray is connected to the end of lifting cylinder piston rod by linear guide rail, and sliding tray can move horizontally in the clamping direction of arc centering clamp rod;The utility model can drive arc centering clamp rod clamping blank head outer circle by servo motor, sliding tray can move horizontally, realize the accurate concentric positioning of blank and suction cup, avoid blank to be bent and break, improve centering accuracy and stability, reduce breakage rate, provide reliable guarantee for subsequent glazing process.

This utility model relates to the field of circulating pump technology, and more particularly to a large-flow vertical single-stage mixed-flow cooling water circulating pump. In this utility model, the motor frame and pump head are jointly fixed on a base. The upper end of the pump head consists of an outlet section, a seal, a splash guard, bearing components, a reverse-rotation bracket, and an anti-reverse-rotation device. The lower end consists of a shaft system and hydraulic components. The shaft of the shaft system passes through the outlet section from bottom to top and connects to the motor. A sealing cavity is provided at the top of the outlet section, and a sealing component is assembled inside the sealing cavity. A splash guard is provided outside the sealing component, encapsulating the sealing component within the sealing cavity. A bearing component is also provided at the top of the outlet section for shaft support. A reverse-rotation bracket is also provided at the top of the outlet section, and an anti-reverse-rotation device is installed on the reverse-rotation bracket. The technical solution of this utility model solves the problems in the prior art where, with the increase of head, the bearing load increases, leading to high bearing temperature, increased seal leakage, reduced pump lifespan, and increased maintenance costs.

The invention discloses a pipe welding machine for producing Bundy pipes, and belongs to the field of pipe welding machines, the pipe welding machine comprises a bottom plate, the upper end of the bottom plate is fixedly connected with a fixing plate and a stabilizing frame, the middle of the fixing plate is provided with a circular groove, and the interior of the circular groove is rotatably connected with a circular plate; a movable rod slidably penetrates through the middle of the fixed plate and the middle of the circular plate, a connecting rod is hinged to the outer wall of the movable rod, and an arc-shaped plate is hinged to the other end of the connecting rod. The double-acting air cylinder drives the movable rod to move and rotate, and the automatic centering, clamping and rotating functions of the Bundy pipe are achieved in cooperation with guiding and limiting of the sliding block and the sliding groove and a linkage structure of the arc-shaped plate and the positioning plate. The arc surface design of the positioning plate improves the clamping stability, and the elastic telescopic rod ensures the movement stability of the movable rod, so that the position of the Bundy pipe is accurate and does not deviate in the welding process, reliable basic conditions are provided for subsequent welding, and the welding precision and efficiency are improved.

The utility model relates to the technical field of corrugated pipe machining, and provides a corrugated outer pipe expansion cutting machine which comprises a bottom plate, the top of the bottom plate is fixedly connected with two symmetrically-arranged shaft seats, a threaded rod is jointly and rotationally installed in the two shaft seats, a propelling motor is installed at the top of the bottom plate, and a motor is installed at the bottom of the bottom plate. The output end of the propulsion motor is fixedly connected with a connecting shaft which is coaxially arranged through a coupler, the connecting shaft and the threaded rod are jointly sleeved with a synchronous belt through a synchronous wheel, two guide rail bases which are arranged in parallel are installed at the top of the bottom plate, and a movable base is jointly slidably assembled on the two guide rail bases; a threaded hole is formed in the moving seat, the horizontal position of the central axis of the corrugated pipe is adjusted through the adjusting rod, it is guaranteed that the corrugated pipe is kept horizontal in the cutting process, the six clamping blocks can move towards the direction of the corrugated pipe at the same time through the design of the positioning disc and the straight groove, automatic centering is achieved, and the horizontal stability in the cutting process is further guaranteed.

The utility model relates to a kind of pre-setting claw and bead pre-set ware for bead pre-set ware, pre-setting claw includes main frame body, support shaft and ball frame body, ball frame body is sleeved in the periphery of main frame body, and both are set on support shaft, several balls that can roll relative to it are uniformly distributed on ball frame body, the utility model can solve the technical problem that the existing technology uses fixed pre-setting claw, increases the difficulty of bead assembly, cannot guarantee the true roundness of bead.

This invention relates to the field of valve stem processing technology, specifically disclosing a valve stem wear-resistant coating spraying device, including a base. A processing structure is provided on the upper left wall of the base, and a support structure is fixedly provided on the right side of the processing structure, with the support structure located on the upper right wall of the base. A feeding structure is fixedly provided on the support structure, and a fixed transport structure is provided on the upper wall of the base near the front end. The fixed transport structure is located in front of the processing structure and the support structure respectively. This invention achieves fully automated operation of the valve stem from batch loading, single quantitative feeding, automatic centering and positioning, clamping and transfer, uniform rotation spraying, to automatic suspension and temporary storage after spraying through the process-oriented collaborative layout of the feeding structure, support structure, fixed transport structure and processing structure. This completely solves the problems of low production efficiency and high labor intensity caused by the reliance on manual loading, manual transfer and manual temporary storage in traditional processes.

The automatic centering clamp comprises a base, a chuck and a centering adjusting assembly, a supporting plate is welded to the upper side of the base, the chuck is fixed to the upper side of the supporting plate, a hollow groove is formed in the middle of the chuck, a bevel gear ring is rotationally installed on the outer edge of the chuck, and the centering adjusting assembly is fixed to the lower side of the hollow groove. And one side of the bevel gear ring is meshed with bevel gears, the number of the bevel gears is three, a centering adjusting assembly is installed on one side of each bevel gear, and each centering adjusting assembly comprises a lead screw, a movable sleeve and a connecting block. By arranging the bevel gear ring, the bevel gear and the centering adjusting assembly, the driving gear drives the inner gear ring and the bevel gear ring to rotate, and then the moving sleeve, the connecting block and the positioning plates of the centering adjusting assembly are driven to move, so that rubber blocks at the ends of the three positioning plates can be attached to the outer side face of an oil cylinder piston rod to clamp and position the oil cylinder piston rod; and automatic centering during machining of oil cylinder piston rods of different sizes is achieved.

This utility model relates to the technical field of auxiliary devices for drilling motor housings, and discloses a quick-positioning drilling mold for AC motor housings. It includes a base, a cross plate fixedly connected to the top of the base, several trapezoidal grooves on the top of the cross plate, trapezoidal blocks slidably connected inside the trapezoidal grooves, a rotating shaft rotatably connected to the inner bottom surface of the base, and a drive assembly capable of driving the rotating shaft to rotate on the outer wall of the base. This utility model, through the coordinated use of the cross plate, trapezoidal blocks, drive assembly, and connecting assembly, achieves automatic centering and precise clamping of the motor housing through the collaborative work of the rotating shaft and turntable, effectively fixing the motor housing and avoiding the loosening problems caused by vibration or external forces in traditional clamps. Furthermore, this device not only improves the clamping accuracy of the motor housing but also adapts to housings of different sizes and shapes, ensuring positioning flexibility and wide applicability.

This utility model provides a quick-aligner for side-opening pipes. The quick-aligner includes a flange, a galvanized pipe fixedly connected to the top of the flange, a connecting plate fixedly connected to the top of the galvanized pipe, and a mounting plate on the top of the connecting plate. The top of the mounting plate is mounted on the top of the connecting plate via a locking assembly. A gear one is rotatably connected to the inner wall of the mounting plate, and gear one meshes with gear two. The inner wall of gear two is fixedly connected to the outer wall of a rotating shaft, and the bottom of the rotating shaft is fixedly connected to the bottom of the inner wall of the mounting plate. Gear two meshes with a rack, and a sliding ring is slidably connected to the outer wall of the rack. The outer wall of the rack is slidably connected to the inner wall of the mounting plate. A clamping plate is fixedly connected to one end of the rack located on the inner wall of the sliding ring. The quick-aligner for side-opening pipes provided by this utility model allows for radial sliding on the inner wall of the mounting plate through the sliding engagement of the rack and the sliding ring. It also offers the advantage of automatically adjusting the position of the clamping plate when clamping coaxial devices of different outer diameters.

The utility model relates to a bearing production clamp which comprises a chuck, four sliding grooves are evenly formed in the periphery of the top face of the chuck, sliding blocks are installed in the four sliding grooves in a sliding mode respectively, arc-shaped supporting plates are fixedly installed on the sliding blocks, a rotating plate is rotationally connected with the chuck, and a clamping plate is fixedly installed on the rotating plate. The four right-angle connecting rods are rotationally connected between the rotating plate and the sliding blocks respectively, nuts are installed below the two opposite sliding blocks respectively, the two sides of the two-way lead screw are in threaded connection with the nuts respectively, and the two ends of the two-way lead screw penetrate through the side wall of the chuck respectively and are rotationally connected with the side wall of the chuck. The sliding block is used for driving the arc-shaped supporting plate to fix a bearing to be machined, fixing is stable, the clamp can conveniently rotate integrally to grind the bearing, the four-jaw chuck structure can achieve automatic centering of the bearing, and when the bearing is placed on the inner side or the outer side of the arc-shaped supporting plate to be clamped, the bearing can be fixed stably. And the inner wall and the outer wall of the bearing ring can be machined and ground conveniently.

The utility model relates to the technical field of cable production, and discloses a new energy automobile cable adjustment-free automatic centering extrusion molding device which comprises a top plate, a lifting plate and a lower die mechanism, the lower die mechanism comprises a base and two moving plates symmetrically arranged on the left side and the right side of the base, and a moving seat is installed at the bottom of each moving plate in a sliding mode. The movable seat is connected with the base in a sliding manner; and a driving mechanism for driving the movable seat to move is also arranged in the base. The driving mechanism controls the moving seat and the moving plates on the base to move, the positions of the moving plates are transversely adjusted, the moving plates are installed on the moving seat in a sliding mode, after cable materials of different specifications are placed between the two moving plates, the cable materials extrude the moving plates, the moving plates slide on the moving seat, and the cable materials are fixed on the moving seat. Therefore, the transverse position of the movable plate is finely adjusted, automatic core fixing of cable materials of different specifications is achieved, and the extrusion molding efficiency of cables is improved.

The utility model relates to a waste heat recycling technical field discloses a kind of waste heat recycling devices of heat pump unit, including heat pump unit box, the right side of heat pump unit box is provided with positioning mechanism, the positioning mechanism is used to adapt the interface of different models of heat pump unit box, the right side of heat pump unit box is connected with duct, the outside of duct is provided with air cooling mechanism, and the air cooling mechanism is used for wind energy heat exchange;The positioning mechanism includes flange one, the outer wall of flange one is fixedly connected in the right side of heat pump unit box, the left side of duct is fixedly connected with flange two, and the outer wall of flange two is fixedly connected with multiple connecting blocks.The utility model in, through the thread transmission of screw rod and driving block, cooperate gear and the linkage of tooth ring, so that multiple positioning block can be synchronized, accurately along radial direction moves, realize the automatic centering and clamping of different size flange one, ensure the butt joint of duct and heat pump unit.