11results about How to "Guaranteed accuracy requirements" patented technology

This utility model discloses a wafer support ring holder for proton irradiation of wafers, relating to wafer irradiation processing. It includes a wafer tray, which is the main tray. The top surface of the wafer tray has an irradiation width region, within which several wafer support rings are arranged. Each wafer support ring is circular, and adjacent wafer support rings are evenly spaced within the irradiation width region. The wafer tray is made of 5051 aluminum alloy. This utility model improves the wafer placement method by structurally adding support rings. Through welding fixtures, the center of the wafer is precisely aligned with the irradiation center, ensuring irradiation accuracy. This utility model optimizes the wafer handling operation by structurally designing the support rings as two-lobed pieces with a gap in the middle, facilitating alignment and flipping operations with a vacuum pen, reducing damage to the wafer during manual handling.

The invention belongs to the technical field of aviation machining, and discloses a numerical control machining method for a magnetically soft alloy large-length-diameter-ratio thin-wall rotary workpiece, which comprises the following steps of: clamping the outer circle of the workpiece, penetrating a mandrel through an inner hole, and carrying out rough machining and finish machining on the outer circle at one end of the workpiece; turning around, clamping the outer circle of the workpiece, enabling an inner hole to penetrate through a mandrel, and performing rough machining and finish machining on the outer circle of the other end of the workpiece; the outer circle of the workpiece is clamped, the end face of the workpiece is flattened, an inner hole is bored, and back gouging is conducted on the root of the hole; and turning around, clamping the outer circle of the workpiece, flattening the end face of the workpiece, and turning and adjusting a threaded hole. The problem that in the existing thin-wall part machining process, wall thickness uniformity and consistency control are poor is solved, the machining efficiency is high, and the machining quality is stable and reliable.

The utility model provides a hardware processing buffer fixing device belongs to hardware processing technical field, this hardware processing buffer fixing device, including base and base surface integral fabrication shaping has T shape frame, its characterized in that: T shape frame top inside passes through fixed column I and is installed with double -end telescopic cylinder, and both sides pass through two fixed columns II and are articulated with two clamping arms, and two telescopic ends of double -end telescopic cylinder are articulated with two clamping arms outer ends respectively through two articulated components, and two clamping arms inner ends are respectively equipped with two clamping components, and two clamping components outer walls are equipped with two buffer components respectively, and two buffer components are respectively with two clamping arms inner surface and are pasted, wherein, through double -end telescopic cylinder drive two clamping arms hammer end's two clamping components and two buffer components, can effectively solve the problem that the traditional fixing device clamping force is too big, very easily leads to hardware to appear deformation, scratch, indentation and so on damage.

This invention provides a method, apparatus, and electronic device for calibrating gaze points, relating to the technical field of gaze point calibration. The method includes: constructing a test bench on a horizontal surface, with a camera calibration plate fixed to a gaze point wall perpendicular to the horizontal surface; performing 3D reconstruction on the acquired image when the gaze point of the target object falls within the gaze point area to determine the 3D coordinates corresponding to each checkerboard corner point in the gaze point area on the camera calibration plate; optimizing the target corner point plane using the 3D coordinates corresponding to each checkerboard corner point in the gaze point area; and determining the 3D coordinates corresponding to each checkerboard corner point on the camera calibration plate based on the target corner point plane and the 3D coordinates corresponding to each checkerboard corner point in the gaze point area. This solution alleviates the technical problem in the prior art where the true value of gaze direction cannot be widely applied to driving behavior monitoring and cannot meet the range and accuracy requirements of driving behavior monitoring.

This invention relates to the field of laser welding fixture technology, and discloses a laser welding fixture for a medical device cutting blade, comprising: a stage, with a thick protruding base integrally provided at each of the four corners of the stage; flat pressure grooves are formed on the surface of the bases on both sides of the middle of the stage; a first pressure sliding member and a second pressure sliding member are slidably disposed inside the two pressure grooves respectively; a first pressure plate is rotatably disposed in the middle of the second pressure sliding member; a second pressure plate is rotatably disposed on the base on one side of the end of the stage; and two placement grooves are formed side by side on the surface of the stage, with the cutting blade workpiece placed inside the placement grooves. This laser welding fixture for a medical device cutting blade solves the problem that in the existing technology, most medical device cutting blades are fixed using complex structures, which consume a lot of time and result in low production efficiency during mass production.

The application aims to provide an adapter connection structure of a pulse coder, which is connected to an outer end mounting surface of a support, an inner end mounting surface of the support is fixedly connected with a motor, a transition shaft is coaxially connected to a tail end of a rotor shaft of the motor, a shaft sleeve is sleeved on a shaft section of the transition shaft which is suspended to a hole cavity of the pulse coder, the shaft sleeve is arranged with the same core as the suspended shaft section and forms a locking fit with axial displacement. In the above scheme, the transition shaft is used as a component connected with the motor rotor shaft and also cooperates with the hole cavity of the pulse coder, which needs to ensure the same core degree with the motor rotor shaft and meet the cooperation requirement with the hole cavity of the pulse coder. The transition shaft with the shaft sleeve can ensure the precision requirement of the above connection and cooperation, so even if the pulse coder is replaced due to failure, the shaft sleeve with the size precision of the hole cavity of the pulse coder can be accurately measured in advance, and then the shaft sleeve is adjusted and locked in the screwing position of the suspended shaft section.

The utility model relates to aerospace precision machining equipment technical field, especially a kind of general fixture for turbine pump shell machining, including base, precision chuck, base plate, three groups of moving slider, three centering clamping jaws and three pressing plate;Adopt composite positioning mode, through high-precision chuck three-jaw self-centering principle, initial positioning X, Y centering;Adopt three-point plane principle, utilize the locating surface of spherical contact component, realize Z positioning;Base plate adopts thread+positioning pin hole combination;It can be quickly disassembled according to different product size conversion positioning and clamping.This utility model clamps shell class parts, adopts three-jaw self-centering clamping mode to cooperate three-point spherical positioning principle.And adopt the end face of axial compression part, can be well guaranteed part deformation, realize shell processing process clamping without deformation, ensure turbine pump shell machining after ultrahigh precision, clamping operation is convenient, improve processing efficiency, satisfy design requirement after processing.

The utility model provides a kind of impeller injection mold, including upper die plate, lower die plate, core mould and sliding block;The core mould is located on upper die plate, the sliding block is circumferentially distributed in the periphery of core mould, and the sliding block, core mould, upper die plate and lower die plate constitute the mold cavity of impeller;The sliding block is combined sliding block, and the combined sliding block includes upper layer sliding block and lower layer sliding block, and the lower layer sliding block is movably installed on upper die plate along second direction, and the upper layer sliding block is movably installed on lower layer sliding block along first direction, and the lower layer sliding block is connected with second straight line mechanism, for driving lower layer sliding block to move on upper die plate along second direction;The upper layer sliding block is connected with first straight line mechanism, for driving upper layer sliding block to move on lower layer sliding block along first direction.The utility model solves high negative angle blade demolding damage problem by combined sliding block, greatly improves yield, and moreover prolongs the service life of mould, reduces maintenance cost.

The utility model relates to the technical field of integrated motors, in particular to an installation positioning structure and an integrated motor, the installation positioning structure comprises a motor shell, a speed reducer shell and an adapter cover, the motor shell is provided with a first opening, the speed reducer shell is provided with a second opening, and the adapter cover is provided with a second opening. The adapter cover is arranged between the motor shell and the speed reducer shell, one side of the adapter cover covers the first opening, and a first positioning structure is arranged between one side of the adapter cover and the motor shell; the other side of the adapter cover covers the second opening, and a second positioning structure is arranged between the other side of the adapter cover and the speed reducer shell. According to the installation positioning structure and the integrated motor provided by the utility model, the installation positioning structure is adopted for installation, the installation is convenient and fast, the installation precision is high, the structure is stable after installation, and the motor is compact in structure, reasonable in layout, small and simple.

This utility model discloses a precast box girder rebar spacing adjustment device, specifically relating to the field of building engineering technology. This utility model incorporates components such as an electrically controlled lifting machine, lifting blocks, a bidirectional lead screw, and a slide rail. Through the transmission relationship between the electric lifting machine's built-in motor and the bidirectional lead screw, the lifting blocks are threaded onto the lead screw and move synchronously in opposite directions linearly as the lead screw rotates. This achieves the effect of precisely adjusting the spacing of the clamping components mounted on the lifting blocks by electrically driving the bidirectional lead screw, realizing automated control of the rebar spacing, avoiding manual adjustment errors, and ensuring the consistency and accuracy of the rebar spacing. Through the detachable magnetic connection between the magnetic block and the slide rail, and the pre-compression relationship between the spring and the upper clamping block, the upper clamping block, through the constant clamping force of the spring, forms a closed rhomboid space with the V-shaped groove of the lower clamping block to firmly clamp the rebar.

This invention relates to the field of machining technology, and particularly to an intelligent matching method and system for slow wire EDM machining parameters. The method involves loading electrode wire parameters and workpiece parameters to configure machining parameters and obtain first machining parameters. When the monitored environmental parameters are inconsistent with the standard environmental parameters, the method uses the electrode wire parameters, workpiece parameters, first machining parameters, and monitored environmental parameters as constraints to search the slow wire EDM machining sample set, performs lumped value evaluation, and obtains the fitted dimensions of the workpiece after cutting. When the dimensional deviation between the fitted dimensions and the standard dimensions of the workpiece after cutting is less than or equal to the dimensional tolerance, metal cutting control is performed based on the first machining parameters; otherwise, the first machining parameters are updated. This invention improves the accuracy and stability of metal cutting using slow wire EDM, reduces trial cutting costs and scrap rates, increases machining efficiency, and reduces production burden.