169results about How to "Stable and accurate operation" patented technology

The invention discloses automatic build-up welding equipment for an abrasion-resistant layer on an inner wall of a pipeline and an automatic build-up welding method for realizing efficient automatic production of high abrasion-resistant composite conveying pipelines. The equipment comprises a host, a direct-current gas protective welding power supply, a protective gas storage tank and a control box with a built-in automatic control device; one end of a base is provided with a head, a main shaft, a chuck and an adjustable roller bracket; the other end of the base is provided with a welding gun running execution device, and the device comprises a driving and reversing platform, a swing platform, a welding gun lifting mechanism, a wire feeder and a welding gun; the front end of the welding gun is provided with a welding torch, and a welding wire and a protective gas conveying pipe are communicated to the front end of the welding gun; the anode of the welding power supply is connected with the welding torch, and the cathode of the welding power supply is connected with a workpiece; and the moving parts are driven by a step motor through the automatic control device. The operation process comprises early preparation, parameter setting, welding and reset stopping; and by setting control parameters, the execution parts run according to the set parameters to form build-up welding layers tightly arranged and uniformly distributed in a spiral motion locus.

The invention discloses an automatic turntable driving structure. The automatic turntable driving structure comprises a vertically-arranged central shaft and a turntable rotatably arranged on the central shaft, a revolution gear driving the turntable to rotate is arranged in the center of the turntable, the revolution gear and the upper end of the central shaft are fixed, the revolution gear is driven by a revolution drive motor through a driving gear in a meshing mode, the driving gear is arranged on an output shaft of the revolution drive motor to be meshed with the revolution gear, a work station A, a work station B and a work station C are evenly distributed on the turntable in the circumferential direction, a vertical rotary shaft is arranged on each work station, an autoroatation chain wheel is arranged at the bottom end of each rotary shaft, an autoroatation drive motor is arranged on the turntable, and the autoroatation drive motor drives the autoroatation chain wheels on the three work stations to rotate through a chain on a chain wheel set. The driving structure is obviously simplified, and production cost is lowered.

The invention relates to a loading and unloading system for a 3D hot bending machine. The loading and unloading system comprises a machine frame, and a 2D glass feeding assembly, a 2D glass reclaiming manipulator, a 2D glass positioning platform, a 2D glass loading manipulator, a mould placing platform, a mould handling manipulator, an upper mould handling manipulator, a 3D glass unloading manipulator, a 3D glass positioning platform, a 3D glass plug-in manipulator and a 3D glass storage assembly which are arranged on the machine frame, wherein the mould handling manipulator is butt-jointed with the 3D hot bending machine and the mould placing platform, the upper mould handling manipulator is butt-jointed with the mould placing platform, the 2D glass reclaiming manipulator is butt-jointed with the 2D glass feeding assembly and the 2D glass positioning platform, the 2D glass loading manipulator is butt-jointed with the 2D glass positioning platform and the mould placing platform, the 3D glass unloading manipulator is butt-jointed with the mould placing platform and the 3D glass positioning platform, and the 3D glass plug-in manipulator is butt-jointed with the 3D glass positioning platform and the 3D glass storage assembly. The loading and unloading system provided by the invention can be combined with the 3D hot bending machine to form an automated assembly line.

The invention discloses an automatic hardware spraying process. The process includes that a revolution driving motor is started after a worker puts hardware on at a workstation A; when a to-be-sprayed product rotates to a workstation B along with a turntable, an autorotation driving motor is started after an electric eye sensor receives a signal; rotating shafts on the workstation B and a workstation C drive the product to rotate, and spraying guns are started to spray the product; the spraying guns are stopped after spraying is completed, the autorotation driving motor is stopped, and the revolution driving motor is started to enter a next working procedure. By the automatic hardware spraying process, production cost is lowered, and production efficiency is improved.

Provided is a construction method for constructing a double-limb hollow high-pier mould side hydraulic jacking creeping formwork and a double-limb hollow high pier. The creeping formwork comprises an integral truss construction platform, a formwork system and a hydraulic jacking device. The integral truss construction platform is erected outside a double-limb concrete pier wall to be poured, the hydraulic jacking device is supported on the outer side of an outer formwork and simultaneously is jacked on the bottom surface of the integral truss construction platform to control the jacking of the integral truss construction platform, the formwork system consists of an inner formwork and the outer formwork which are connected through a draw rod, and a shear key is arranged at the plugging position of the outer formwork and the draw rod. In construction, the jacking of the integral truss construction platform is achieved through shear key transferring and track supporting, the inner formwork and the outer formwork are hoisted by a crane derrick mast to an upper-layer construction section through supporting of the integral truss construction platform, and the construction method has the advantages of being high in mechanization degree, good in safety, high in construction efficiency and the like and can be widely applied to concrete construction of the double-limb high pier bridges.

Stepper motor winding current regulation methods and apparatus continuously and bi-directionally sense winding current to determine both the magnitude of the winding current and the slope of a waveform representing the winding current. The magnitude and slope information is used to more precisely control periods of current rise and characteristics of fast and slow current decay during pulse-width modulation (“PWM”) regulation cycles. Winding current rise and decay shaping is based upon the sensed magnitude of the winding current, the magnitude of the winding current regulation set-point ITRIP, whether the sensed winding current is greater than or less than ITRIP at a selected sampling time, whether the sensed winding current is increasing or decreasing when a waveform of the sensed winding current crosses over ITRIP, and whether or not the magnitude of ITRIP changes during a PWM cycle in response to a receipt of a subsequent DAC code.

A variable resistance hand rehabilitation device and corresponding system. Improvements over the prior art include: a new damping system or damper design, to reduce friction and increase maximum force output; a dynometer feature that enables converting the dynamic device to a static grip force measuring device; a closed-loop controller; and a new graphic user interface for the medical practitioner and new virtual reality game software that allow accurate and smooth operation of the device and increased patient motivation.

The invention discloses a greenhouse quilt rolling machine and an operating method thereof, and belongs to the field of construction agriculture. The machine consists of a motor, a reducer, a guide rail bracket, a middle quilt rolling mechanism, a stroke control box, rolling shafts on two sides, and a double-row arc guide rail. A greenhouse is formed by east, west and north enclosure walls and a north-south roof arch frame; a transparent plastic film is laid on the north-south roof arch frame; the double-row arc guide rail is fixed on the north enclosure wall and the ground foundation at the front end of the south side of the greenhouse and is arranged above the north-south roof arch frame of the greenhouse; and the rolling machine is arranged on the double-row arc guide rail, and moves up and down along the double-row arc guide rail. The invention solves the problem that the thermal insulation quilt rolling reciprocating movement causes pressure on a roof steel structure and fatigue deformation of steel structural components, solves the problem that narrow thermal insulation quilts in the middle of the greenhouse cannot be synchronously rolled, and cannot cause early destructive wear of the plastic film on the roof or influence the service life of the plastic film.

The invention discloses an automatic turntable for hardware spraying. The automatic turntable comprises a turntable frame. A turntable body is arranged upon the turntable frame. Positioning bearings are arranged on the upper portion and bottom portion of the turntable frame. A central shaft is arranged in the positioning bearings. A revolution gear which is arranged in the center of the turntable body is used for driving the same to rotate and fixed to the upper end of the central shaft. A revolution drive motor which is arranged on the turntable frame drives the revolution gear to rotate. A station A, a station B and a station C are circumferentially and uniformly formed on the turntable. Vertical rotary shafts are arranged on the stations. Product fixtures are arranged at the upper ends of the rotary shafts, and rotation chain wheels are arranged at the lower ends of the rotary shafts. A rotation drive motor which is mounted on the turntable drives the rotation chain wheels on the stations to rotate through a chain. By the automatic turntable, production cost is remarkably reduced, and production efficiency is improved.

The invention belongs to the technical field of handling equipment and relates to a special wheel cake loading and unloading robot for an automatic production line. A rotating arm of the robot is connected with a machine body through a gear pair and is connected with paws through guide pillars; a rotating servo motor is connected with the rotating arm through the gear pair and drives the rotating arm to rotate, and a paw lifting oil cylinder is connected with the paws through a steel wire rope; the steel wire rope changes in direction twice through a pulley block so as to drive the paws to ascend and descend; a paw opening and closing oil cylinder drives the paws to open and close through a connecting rod group so as to clamp a wheel cake workpiece; and a rotating flashing light is fixed on the rotating arm through a screw. The special wheel cake loading and unloading robot has the advantages of being high in repeated positioning accuracy, more accurate and stable in running, higher in rotating speed and easier to control, reaching a max rotating angel speed of 0.25rad/s, reducing power dissipation substantially, and having a stable clamping effect and a self-locking function.

The invention relates to an engine subpackage line heavy plate chain which comprises a bearing track, a driving device, a tensioning device, a conveying chain and bearing panels. The driving device and the tensioning device are arranged at the two ends of the bearing track, the conveying chain is meshed with a driving chain wheel of the driving device and a tensioning chain wheel of the tensioning device, and the multiple bearing panels are installed on the conveying chain in an end-to-end mode. The engine subpackage line heavy plate chain is characterized in that the upper end faces of some of the bearing panels are connected with prying body supports, the two sides of the ends of the lower end faces of all the bearing panels are connected with the conveying chain, and the middle portions of the lower end faces of all the bearing panels are connected with idler wheel sets. The engine subpackage line heavy plate chain is ingenious and reasonable in structure, the idler wheel sets are arranged below the bearing panels, and the effects that the conveying chain runs stably and accurately, and a line body can bear heavy loads can be ensured. The upper end faces of the bearing panels are connected with the prying body supports, therefore various types of articles can be conveyed, a stop block which can be opened or closed is arranged on a front support in each prying body support, and therefore the effect that a prying body is safe and does not slip off in the conveying process is ensured.

The invention provides a multi-point touch tracking identification method and a multi-point touch tracking identification system. The method comprises the following steps of: acquiring touch point positions in two adjacent frames of images respectively; calculating the distance between the touch points of the images of the front frame and the rear frame according to the touch point positions; screening actual association between the touch points according to the distance, and gradually searching the association modes of the touch points of the images of the front frame and the rear frame according to the sequence of the distance of the touch points; and calculating the touch point dispersion degree of the association mode searched every time, and judging that the previous association modeis an optimal association mode when the touch point dispersion degree of the later association mode is greater than the touch point dispersion degree of the previous association mode for the first time. According to the multi-point touch tracking identification method and the multi-point touch tracking identification system, accuracy and robustness of the association of the touch points in the front frame and the rear frame are ensured by global analysis. By screening the actual association between the touch points, the tracking identification efficiency is improved.

The invention provides a method for rapidly identifying repeated freeze-thaw meats. The method for rapidly identifying the repeated freeze-thaw meats comprises the steps of preparation of a sample tobe tested, MALDI-TOF-MS determination, data processing, and PCA analysis; wherein the sample m/z interval detected by the MALDI-TOF-MS method is400 to 3000 Da. The method for rapidly identifying repeated freeze-thaw meats provided by the invention can stably and accurately realize the identification of repeated freeze-thaw meats; the method is simple and easy to operate; and the result is intuitive.

Disclosed herein is a dental rescue implant implanted into an alveolar bone for forming a root of an artificial tooth. The dental rescue implant includes: a wide sectional body part having a sectional diameter of 6.5 mm to 8 mm, greater than a sectional diameter of 6 mm of a typical implant body part, whereby the wide sectional body part can be implanted directly into the corresponding alveolar bone without refilling a damaged part with a bone substitutive material when implant surgery ends in failure; and a wide screw thread formed on the outer periphery of the wide sectional body part, the wide screw thread being formed at 1˜1.75 pitch intervals, whereby the wide sectional body part is implanted into the alveolar bone with relatively small resistance. The implant can be directly implanted into the alveolar bone without refilling a damaged part with a substitutive material even though a molar teeth part is lost or implant surgery ends in a failure by complex factors.

The invention discloses a method for positioning a mechanical arm intelligent charging pile. The charging pile comprises a mechanical arm and a control mechanism capable of operating automatically. According to the method for positioning the mechanical arm intelligent charging pile, the charging pile can be intelligently positioned through a starting system and a detecting system together with a series of steps of target instruction receiving, coordinate transformation, target operating angle calculation, mechanical arm movement control and the like; and positioning is fast and accurate, labor cost is greatly reduced, and safety is improved.