17results about How to "Realize high-precision positioning" patented technology

This utility model provides an eccentric machining clamping fixture, including a disc; the disc has a central hole; it also includes a positioning seat, a correction component, a left limit stop, and a gripper assembly; the positioning seat is fixed on the right side of the disc; the positioning seat has a positioning hole at its center for positioning the workpiece; the positioning seat has a correction component mounting groove below the positioning hole; the correction component includes a slide, a correction slider, a spring, and an adjusting shaft; the slide is fixed at the position of the correction component mounting groove; the correction slider is slidably connected to the slide within the slide; the upper end of the correction slider has a correction protrusion extending into the positioning hole; the spring is installed between the slide and the correction slider to apply upward elastic force to the correction slider; the adjusting shaft is installed on the positioning seat and its end is connected to the correction slider to control the downward movement of the correction slider; the left limit stop is located on the left side of the positioning hole and its two ends are fixed on the positioning seat; the gripper assembly is installed on the upper part of the positioning seat to clamp and fix the workpiece in the mounting hole.

This utility model provides a pneumatic lifting device for electronic trays, including a tray positioning assembly, a drive assembly, and a handling robot. The tray positioning assembly inserts a central positioning cone into the center hole of the tray, and, in conjunction with a pressure plate, clamps the tray to achieve precise vertical positioning. The drive assembly uses a downward-pressing cylinder to drive the limit plate to rise and fall, with linear bearings ensuring stability. The handling robot uses a rotary cylinder, a gripper cylinder, and a synchronous belt mechanism to achieve 45-degree rotation and extend / retract the fork, completing the tray gripping and handling. This device has a compact structure, high positioning accuracy, and strong adaptability, significantly improving the efficiency and stability of automated production, and is suitable for various electronic trays.

The utility model discloses a novel light guide plate with uniform light distribution relates to novel light guide plate technical field, this novel light guide plate with uniform light distribution includes novel light guide plate, and the novel light guide plate four corners are all connected with fixed clamp seat, the utility model discloses, light guide plate adopts gradual change compound dot, and the design of circular dot and rhombus dot is combined with the layout of optical simulation optimization, and the optimization surface light intensity solves the problem of uneven light emission from the light conduction source, and the nanometer diffusion film cooperates with the micro prism brightening layer, and the light is regulated by secondary scattering and total reflection, and the light emission uniformity is improved 40% than traditional light guide plate, and effectively eliminates bright spot, dark area, and adapts high -end display, precision lighting scene.

This utility model relates to the field of foam adhesive application technology, specifically to a positioning device for foam adhesive application, including a die-cutting machine body, a positioning component, and a conveying component. The positioning component includes a pressing platform, a positioning base plate, a positioning pressure plate, and positioning pins. The pressing platform is fixedly connected to the die-cutting machine body and located on the outside of the die-cutting machine body. The positioning base plate is fixedly connected to the pressing platform and located on top of the pressing platform. The positioning pressure plate is detachably connected to the positioning base plate and located on top of the positioning base plate. There are multiple positioning pins, each threadedly connected to the positioning base plate and passing through the positioning pressure plate. The conveying component is connected to the die-cutting machine body. This device solves the problems of poor positioning accuracy, low efficiency, insufficient equipment adaptability, and lack of real-time monitoring and adjustment mechanisms in the prior art for foam adhesive application, thereby improving the quality and production efficiency of foam adhesive application.

The invention provides a displacement table and a conveying device, and relates to the technical field of semiconductor equipment manufacturing. The displacement platform provided by the invention comprises a stator unit, a mover unit arranged above the stator unit, a piezoelectric driving module capable of driving the mover unit to move relative to the stator unit, and an electromagnetic driving module, the piezoelectric driving module comprises a piezoelectric driving mechanism connected with the mover unit, and the piezoelectric driving mechanism is configured to act on the upper surface of the stator unit; the electromagnetic driving module comprises a conductor array arranged on the stator unit and a magnet array which is arranged on the mover unit and matched with the conductor array. According to the displacement table, large-stroke, high-speed and high-acceleration long-distance transmission can be achieved, meanwhile, high-precision positioning can be achieved, good position stability is achieved, the mover unit can span the stator units of the multiple displacement tables through the electromagnetic driving module, and therefore handover is achieved, and manual work or handover of a manipulator is not needed.

The application discloses a kind of under messy scene robot autonomous pickup and pose acquisition method of placement, the color image of work scene obtained by camera is as input, target information is obtained using semantic segmentation model and input information representation ability is strengthened, a kind of actor-critic form deep reinforcement learning method is used to remove obstacle autonomously and explore target object pose, then target placement pose is obtained using the method based on depth feature template matching, finally, pick and place object to specific pose, the scheme can explore the occluded target object in complex scene and place to specific pose.The scheme realizes high-precision positioning of target placement pose according to pickup pose, and the target pickup success rate in messy scene can reach more than 80%, which improves the success rate and stability of target placement pose acquisition task as a whole.

The utility model belongs to the technical field of electronic equipment manufacturing, concretely relates to an electromagnetic shielding disc assembling device, including base guide rail and shielding disc guide rail, the end of base guide rail is located the above of shielding disc guide rail end in vertical direction and both form perpendicular intersection layout on three -dimensional space and the inside of this intersection region is provided with machine base in the intersection region, integrated mechanism of grabbing riveting is integrated on the machine base, a plurality of bases are evenly arranged on the base guide rail along its length direction, a plurality of shielding discs that are matched with the base are correspondingly arranged on the shielding disc guide rail, a plurality of shielding discs are sequentially assembled on the corresponding base through grabbing riveting integrated mechanism. The utility model discloses through space layout optimization, function integration design and high-precision mechanical structure innovation, solves the low degree of automation, positioning accuracy deficiency, poor adaptability and other core problems in the prior art, realizes the efficient, high-precision assembly of electromagnetic shielding disc.

This invention discloses an AI-based intelligent safety monitoring method and system for coal bunkers in thermal power plants, belonging to the field of thermal power plant monitoring technology. The method includes: dividing the thermal power plant into coal bunker operating areas and non-operating areas based on a 3D visualization model; collecting video data from the coal bunker operating areas and preprocessing the video data; using anomaly recognition technology to analyze the preprocessed video data frame by frame to identify potential safety hazards in the coal bunker operating areas; these hazards include improper wearing of safety helmets, improper wearing of work clothes, and improper deployment of fire extinguishing equipment; constructing a risk level assessment model and using this model to assess the risks of potential safety hazards; and generating a multi-level early warning mechanism for the thermal power plant's coal bunker based on the risk assessment results. This invention achieves comprehensive and refined intelligent monitoring of the safety status of personnel operating in the thermal power plant's coal bunker and the deployment of fire extinguishing equipment.

The application relates to a surrounding rock loose zone monitoring method and system based on optical fiber anchor rod strain, which comprises the following steps: temperature compensation is performed on strain distribution information according to temperature distribution information, and real anchor rod strain distribution data are obtained; the axial force distribution and the shear force distribution of the anchor rod are analyzed according to the anchor rod strain distribution data, and a cross-section shear stress distribution model is constructed; the strain gradient distribution along the axial direction of the anchor rod is analyzed according to the anchor rod shear stress distribution model; a loose zone boundary identification model is constructed according to the axial force distribution and the strain gradient distribution, the strain mutation point position of the anchor rod is determined, the surrounding rock loose zone and the elastic zone are characterized by the strain mutation point, the strain mutation points of the anchor rods are connected, the boundary contour line of the surrounding rock loose zone is formed, and the range of the surrounding rock loose zone is determined. The scheme provided by the application can realize high-precision positioning, dynamic tracking of the surrounding rock loose zone boundary and dynamic optimization of a tunnel supporting structure design.

The high-precision double-color injection molding positioning device comprises a rotating plate, the top end of the rotating plate is fixedly connected with a connecting block, one side of the connecting block is fixedly connected with a connecting rod, the end, away from the connecting block, of the connecting rod is rotationally connected with a rolling wheel, and the interior of the rolling wheel is rotationally connected with a sliding rod; a fixing plate is arranged at the bottom of the rolling wheel, a guide groove is formed in the side, close to the connecting rod, of the fixing plate, and a connecting plate is fixedly connected to the side, close to the rotating plate, of the fixing plate. The rotating plate and the fixed plate are connected through the connecting rod and the roller, the guide groove with the central angle of 180 degrees is formed in one side of the fixed plate, and when the rotating plate drives the first male die and the second male die to rotate, the connecting rod drives the roller to rotate on the surface of the fixed plate, and the sliding rod rotates in the guide groove, so that rotation of the rotating plate is guided; and when the sliding rod rotates to one end of the guide groove, the pressure sensor detects the sliding rod, so that high-precision positioning of the mold is realized.

Embodiments of the present application provide a predetermined line position correction method and device, electronic equipment and storage medium. The method comprises: obtaining a plurality of groups of predetermined line images to be tested containing predetermined lines, each group of predetermined line images to be tested being an image collected by an image collection device for a predetermined line on a workpiece under the condition that the workpiece moves along a predetermined reference direction; based on the plurality of groups of predetermined line images to be tested, and based on a reference position point, a plurality of groups of position points are sequentially determined one by one, and the plurality of groups of predetermined line images to be tested correspond to the plurality of groups of position points one by one; after determining each group of position points, the position of the workpiece is adjusted according to the angle of the line connecting the first position point and the second position point in the group of position points relative to the line connecting the predetermined reference direction, so as to correct the position of the predetermined line on the workpiece. High-precision positioning of the predetermined line on the workpiece can be achieved in a wider range.

The utility model discloses a kind of for special vehicle intelligent accurate positioning platform, it includes support system, power system, top turntable assembly, sewage drainage system, electric control system and emergency stop setting;By optimizing power system, 8.5KW servo motor is adopted, and the bearing capacity is promoted to above 10T, and ±0.01 degree high-precision positioning is realized in combination with 15-bit resolution encoder;Top turntable assembly's advancing guide rail is hardened, and stability is ensured;Sewage drainage system is equipped with automatic drainage pump, and eliminates waterlogging hidden danger;Electric control system supports multiple control modes, and operation is simple;The present application can significantly shorten the vehicle body transfer time to 30 minutes per table, improve positioning accuracy and safety, applicable to wheeled armored vehicle and other special vehicle maintenance field, with important military and industrial value.

The application belongs to the technical field of sheet metal automation, and discloses a sheet metal part adaptive robot stacking control method and system, wherein the sheet metal part adaptive robot stacking control method comprises the following steps: reading the controller data of a laser cutting machine; according to the physical size of a preset discharging and stacking position, the effective coverage size of a single-sided gripper, and a safety redundancy, the physical stacking position is divided into standardized virtual grid units; according to the geometric properties of the current workpiece, the number of grid units required for placing the workpiece is calculated; a space search algorithm is used to traverse the state matrix; after the target grid index is found, the center physical coordinates of the grid are converted into the world coordinate system target point of the robot, and the application can virtually divide a large-area stacking position into a plurality of standard small blocks through a virtual grid stacking algorithm; the system can mix and stack multiple specifications of parts on a tray in a compact manner, and the space utilization rate of the tray is significantly improved.

The application relates to the technical field of positioning of main reinforcement of a steel reinforcement cage, and discloses a double-layer adjustable main reinforcement positioning device for a steel reinforcement cage, which comprises a sliding rail, a bottom plate is fixedly installed on the upper portion of a sliding rail moving seat, an adjusting mechanism is fixedly installed on the upper portion of the bottom plate, the adjusting mechanism comprises a driving assembly and an adjusting assembly, is used for height adjustment of the device, a positioning mechanism is fixedly connected to the output end of the adjusting mechanism and is used for positioning the steel reinforcement cage, a plurality of fixing mechanisms are arranged outside the positioning mechanism, the fixing mechanisms comprise sliding assemblies and connecting assemblies and are used for fixing the steel reinforcement cage. The outer ring of the main reinforcement is marked with a scale with a graduation precision of +0.5 DEG, construction personnel calculate the main reinforcement distribution angle according to the scale and design drawings, the slidable fixing sliding block, the cylindrical main reinforcement connector and the cylindrical jacket are used for accurately adjusting the main reinforcement position and the diameter of the steel reinforcement cage, and high-precision positioning of the main reinforcement of the steel reinforcement cage is realized.

This invention discloses a time synchronization method based on BeiDou satellites, comprising the following steps: S1: acquiring the ephemeris, satellite observation data, and B2b satellite correction data messages of BeiDou-3 satellites; S2: performing anomaly processing on the satellite observation data; S3: combining the ephemeris and the anomaly-processed satellite observation data, using a PPP floating-point solution function model for pseudorange single-point positioning; S4: calculating the satellite's position coordinates based on the ephemeris and B2b satellite correction data messages; S5: inputting the pseudorange single-point positioning result and the satellite's position coordinates into a Kalman filter for filtering, followed by PPP precise single-point positioning processing to obtain the receiver clock bias; S6: inputting the receiver clock bias data into a clock control module to adjust the clock and complete synchronization. In this invention, each device acts as a master station, achieving high-precision positioning of each device through the PPP-B2b model, combining positioning technology with time synchronization technology, thereby improving the synchronization accuracy between devices.

This utility model discloses a high-strength automotive sunroof sheet metal stamping part, relating to the field of automotive parts technology. It includes a base plate and a middle plate. The upper surface of the base plate is integrally stamped with the middle plate, and the upper surface of the middle plate is integrally stamped with the upper plate. Several mounting holes are stamped at the outer edges of the base plate, middle plate, and upper plate. This high-strength automotive sunroof sheet metal stamping part adopts an integrated stamping structure for the base plate, middle plate, and upper plate. Through a stepped strength distribution, combined with the hexagonal honeycomb reinforcing plate of the middle plate, it reduces material usage while improving bending stiffness and impact resistance. The honeycomb structure can evenly distribute the load, avoiding cracking or deformation caused by localized stress concentration. The isosceles trapezoidal cross-section reinforcing rib grid layout of the upper plate further enhances surface stiffness, effectively resisting wind pressure, falling rock impacts, and vibration fatigue during driving, extending the sunroof's service life and reducing maintenance costs.