855 results about "Fixed angle" patented technology

The invention relates to the technical field of pipe fitting welding tools, in particular to a groove cleanable stainless steel pipe fitting welding tool which comprises a supporting assembly, a clamping assembly movably arranged on one side of the supporting assembly, an adjusting assembly arranged on one side of a clamping plate, a grinding assembly movably arranged on one side of a detection assembly, and the detection assembly arranged on one side of the supporting assembly. The rotating assembly is arranged on one side of the detection assembly. According to the pipe fitting groove polishing device, the pipe fitting is clamped through the clamping assembly, the rotating disc drives the polishing piece to rotate, meanwhile, the electric push rod stretches out and draws back in a matched mode, the polishing piece is attached to a pipe fitting groove with uniform force for polishing, and welding quality reduction caused by excessive polishing or incomplete polishing is avoided; through cooperation of the pressure sensor and the displacement sensor, the clamping angle of the pipe fitting is detected, the angle of the pipe fitting is automatically calibrated, two pipe fitting grooves are spliced at a fixed angle, manual supporting and fixing are replaced, and the welding precision of the pipe fitting is improved.

The invention discloses a balance centering measurement and correction method for a wind tunnel force measurement test, and belongs to the technical field of wind tunnel force measurement. The problem that in the prior art, a traditional balance centering measurement and correction method is large in test result error due to the fact that the actual centering position and the theoretical centering position of a balance are inconsistent is solved. According to the invention, a wind tunnel test model is designed and processed, the positions of loading points are determined, each loading point is loaded, the angle of attack of a balance is adjusted through a support system, and then a normal force and a pitching moment are measured through the balance; according to the normal force and the pitching moment, force arms of the loading points at the fixed angle of attack are obtained, and the actual distance between each loading point and the balance calibration center in the flow direction is obtained through fitting; and obtaining the actual position of the balance center according to the difference between the actual distance and the theoretical distance from each loading point to the balance center along the flow direction. The method effectively improves the precision of the obtained balance center calibration position, and can be applied to a wind tunnel force measurement test.

The invention relates to the technical field of MicroLED array laser repair, and discloses a positioning method for rapid laser repair of a MicroLED array. Comprising the following steps: 1) constructing a coordinate reference system in an equipment imaging view field, setting coordinate axes according to horizontal and vertical directions by taking a fixed angle and a boundary of an array as reference original points, and adjusting the unit length and the coverage range of the coordinate system for Micro LED arrays with different sizes and specifications to ensure that the whole array area is covered; according to the positioning method for rapid laser repair of the Micro LED array, the actual physical position of a positioning system and the actual physical position of the Micro LED array can be better matched, positioning errors caused by an inaccurate coordinate system are reduced, the result of each time of positioning can be compared and corrected by positioning a defect area for multiple times, and the positioning accuracy is improved. Error accumulation possibly generated by single-time positioning is effectively reduced, especially when a complex Micro LED array is processed, multiple times of positioning can continuously optimize the positioning result, and the finally determined defect position is more accurate.

The invention discloses a centrifugal blower fan blade assembling machine, and relates to the technical field of fan blade assembling devices, the centrifugal blower fan blade assembling machine comprises a machine base, a feeding slide way, a welding unit, a polishing unit, a rotating seat, a rotating unit and a clamping part, and the periphery of the clamping part is provided with a plurality of blade limiting grooves; the periphery of the clamping part is further provided with a deformation joint communicated with the lower side of the blade limiting groove, and the blade limiting groove and the deformation joint are communicated with the clearance groove. A blade enters a blade limiting groove through a feeding slide way and then moves downwards through a clamping part, so that the clamping part is elastically contracted, the blade limiting groove clamps the blade, then the clamped blade is welded through a welding unit, the blade is welded to the surface of a blade disc, and then a rotating seat rotates by a fixed angle; when one blade is welded to the blade disc, the other blade enters the blade limiting groove, the multiple blades are welded to the blade disc at equal angles, the blades are clamped by the blade limiting groove, large welding deviation cannot be generated in the welding process, and the welding effect is improved.

The invention discloses a turning machine tool and a turning method, and belongs to the technical field of machining. The workpiece main shaft is connected to the Z-axis guide rail in a sliding mode, and the Z-axis guide rail is fixed to the lathe bed; a rotary carriage and an X-axis guide rail; the X-axis machining tool is connected to the X-axis guide rail in a sliding mode; the rotation center line of the workpiece spindle and the rotation center line of the rotary table are perpendicular and coplanar, the X axis deviates from the rotation center line of the rotary table, and the included angle between the Z axis and the X axis is adjusted by rotating the rotation carriage along the B axis. The turning method comprises the steps that the X-axis and the Z-axis are turned at a fixed angle, the B-axis is located at a fixed position, or the X-axis, the Z-axis and the B-axis are turned in a linkage mode. Multi-axis linkage can be carried out, the spatial position of a tool nose tool is accurately calibrated, high precision and high quality of special-shaped surface machining are ensured, the special-shaped surface machining device is suitable for multi-configuration feature machining of special-shaped surfaces, and high-precision cutting under various process requirements of curved surface turning, milling and the like is achieved.

The invention relates to the technical field of semiconductor equipment, and discloses a fixing device and semiconductor equipment. The fixing device provided by the embodiment of the invention comprises a clamping assembly, and the clamping assembly is used for clamping a mask plate or a wafer; the supporting assembly is used for supporting the mask plate or the wafer in the first direction and adjusting the included angle between the mask plate or the wafer and a first plane, and the first plane is perpendicular to the first direction; the rotating adjusting mechanism comprises a driving assembly, the driving assembly is used for driving the mask plate or the wafer to rotate, and the rotating shaft of the mask plate or the wafer is parallel to the first direction. According to the fixing device, the Rx angle and the Ry angle of the mask plate or the wafer can be adjusted through the supporting assembly, the Rz angle of the mask plate or the wafer can be adjusted through the rotation adjusting mechanism, and therefore multi-angle adjustment of the space attitude of the mask plate or the wafer can be achieved, and the fixing angle of the mask plate can be accurately controlled.

The invention discloses a device for testing the toughness of an electric hair cutter head. The device comprises a rotary table, an angle-adjustable jig, an impact mechanism and a visual inspection mechanism, the angle-adjustable jigs are distributed on the conveying mechanism in the circumferential direction and provided with jig tables, and clamps for fixing the tool bits are arranged on the jig tables. The impact mechanism and the visual detection mechanism are sequentially arranged at the top of the conveying mechanism in the conveying direction of the conveying mechanism, stepless adjustment of the blade fixing angle can be achieved through the angle-adjustable jig, the detection requirements of different inclination angles are met, the electric hair cutter blade to be detected is stably clamped on the angle-adjustable jig, and the detection efficiency is improved. The impact mechanism located in the detection chamber applies impact forces with different intensities and frequencies to the blade according to a set detection scheme, various complex stress conditions encountered by the electric hair cutter head in the actual use process are simulated, and the problem that an existing device cannot comprehensively detect the toughness of the cutter head at different inclination angles is solved.

The multi-station punching device for aluminum profile machining comprises a base, four supporting columns are fixed to the base, the plane of a hollow polygon prism is provided with a limiting groove set matched with an aluminum profile for placement and matched with a punch for use, and a driving mechanism for driving two conveying pipes to rotate synchronously is installed on a lifting plate. The driving mechanism rotates the hollow polygon prism at a fixed angle and keeps static, one plane of the static hollow polygon prism is opposite to the punch, the driving piece drives the lifting plate to move up and down, and aluminum profiles on the hollow polygon prism can be punched one by one in cooperation with the driving mechanism. The problems that in the prior art, the punching efficiency is low, and potential safety hazards exist are avoided, by arranging the multi-station hollow polygon prism distributed annularly, the overall size of equipment is reduced, and the functions of correcting, limiting, cooling and the like of the U-shaped aluminum gusset plate can also be achieved.

The present invention relates to the technical field of yarn binding machines, specifically a novel pot-type yarn binding machine routing structure, the yarn binding machine includes a yarn binding ball and a yarn binding pot, a yarn routing path for guiding the yarn to enter is provided along the edge of the yarn binding pot, the yarn routing path includes at least one automatic deflection guide wheel group, the yarn outlet of the yarn binding ball is connected to the automatic deflection guide wheel group, the automatic deflection guide wheel group can realize left and right adaptive deflection in the axial direction; at least one first directional guide wheel group and at least one second directional guide wheel group, the first directional guide wheel group and the second directional guide wheel group are fixed at fixed angles and equidistantly around the yarn binding pot; the yarn of the yarn binding ball passes through the automatic deflection guide wheel group, the first directional guide wheel group and the second directional guide wheel group in sequence. Compared with the prior art, the advantages of the present invention are: slowing down the tension fluctuation of the yarn itself when it is reciprocating left and right, thereby reducing the peak value of the yarn binding tension, and using guide wheel rolling instead of direct friction to minimize the yarn binding tension of the output yarn.

A gearbox simulation test device disclosed by the present invention comprises a device seat and an adjusting device, an analysis assembly is installed on one side of the device seat, a driving assembly is horizontally erected on the rear side of the analysis assembly, and a movable table group is arranged on one side of the power output end of the driving assembly. The adjusting device is arranged on the side, away from the driving assembly, of the movable table set, and a fixed angle plate is arranged on the side edge of the device base. According to the gearbox simulation test device, the adjusting device and the movable table group are arranged, the adjusting device can simulate complex variable loads borne by a gearbox of a helicopter in different flight states, such as different load conditions during takeoff, cruising and landing, and the movable table group is used for installing and fixing the gearbox and meanwhile, can simulate the complex variable loads of the gearbox in different flight states. Structural self-adaption is achieved through cooperation with operation of the adjusting device, and the device base, the analysis assembly, the driving assembly, the movable table set and the adjusting device have structural disassembly and assembly performance so that structural maintenance and adjustment can be facilitated.

The invention relates to the technical field of medical instruments, in particular to a dose adjusting mechanism of an injection device and the injection device. A push rod part penetrates through a holding part and is in threaded connection with the holding part, a sound tooth part sleeves the push rod part and is in circumferential limiting connection with the push rod part, and the push rod part can move in the axial direction relative to the sound tooth part; one-way clamping grooves distributed in the circumferential direction are formed in the circumferential wall defining the containing cavity, the sound tooth part is located in the containing cavity, the sound tooth part is provided with an elastic clamping part, and the elastic clamping part is clamped into any one of the one-way clamping grooves; under the state that the push rod part is pressed, the push rod part can move in the axial direction and drive the sound tooth part to rotate synchronously under the action of the threads, so that the elastic clamping part slides along the peripheral wall defining the containing cavity to be clamped into one of the one-way clamping grooves in the front end. Axial control of the push rod part is converted into rotation control of the sound tooth part, rotation movement of the sound tooth part is discretized into fixed angle grading, the axial displacement of single-time grading of the push rod part is extremely small, and the small-dose injection requirement is met.

The invention belongs to the technical field of agricultural machinery, and discloses a method for measuring the stacking height of materials in a grain tank of a grain transport vehicle based on binocular vision, which comprises the following steps of: constructing a binocular vision system which comprises two cameras with the same parameters, installing the binocular vision system on the grain transport vehicle, shooting the grain tank at a fixed angle, and calculating the stacking height of the materials in the grain tank according to parallax caused by the positions of the cameras; the space coordinates of the feature points are calculated through triangulation by using the difference between the pixel coordinate values of the left image and the right image, the depth information of the measured target is obtained, and the object is positioned and measured; through accurate binocular camera calibration and an efficient stereo matching algorithm, rapid and non-contact measurement of the material stacking height is achieved, the error rate is as low as 4% or below, the high-precision operation requirement is met, measurement data are further optimized through introduction of a linear regression model, errors are effectively reduced, and the measurement accuracy is improved. And the stability and the reliability of a measurement result are improved.

The invention belongs to the technical field of automobile part punching, and particularly relates to part punching equipment for automobile part production, which comprises a base, a support frame is fixedly connected to one side of the upper end face of the base, two first sliding rods are slidably connected to the middle of the upper end of the support frame, and punching heads are fixedly connected to the lower ends of the first sliding rods. A rack is fixedly connected to one side of the upper end face of the base, a conveying belt is arranged on the rack, a displacement frame is slidably connected to one side of the upper end face of the base, a lifting plate is slidably connected to a sliding groove of the displacement frame, and a finger air cylinder is rotationally arranged in the middle of the left end face of the lifting plate. By means of the recognition correction type feeding assembly, the multiple special-shaped square pipes which are placed in a mess originally can be placed on the workbench one by one at a fixed angle, punching operation is conducted regularly, and the situation that the punching efficiency is improved due to the fact that the special-shaped square pipes are not uniform in orientation and are mess when conveyed through the previous procedure is avoided. And therefore, the situation that the punching head is difficult to accurately punch the cambered surface of each special-shaped square tube is avoided.

The utility model relates to the technical field of horizontal directional drilling machines, and discloses a variable angle adjusting mechanism of a crossbeam of a horizontal directional drilling machine, which comprises a main big arm, an inner rotating barrel is movably connected in the main big arm, the bottom end of the inner rotating barrel is in threaded connection with a drill bit, and a circular groove is formed in the drill bit. A plurality of sets of racks are fixedly connected to the inner wall of the circular groove, one side of a first gear is meshed with the inner wall of each rack, a second gear is meshed with the other side of each first gear, and the output end of a first motor is fixedly connected to the interior of each second gear. According to the variable-angle adjusting mechanism of the horizontal directional drilling machine girder, after a drill bit makes contact with the ground, a first motor is started, the angle of a drilling tool on the drill bit is adjusted, the angle of the drilling tool is made to deviate, the position of the drill bit drilling soil under the ground is adjusted, a drilling route is adjusted, and the angle of the drilling tool is adjusted so that the variable-angle adjusting mechanism can better adapt to the field environment; and the drilling deviation caused by a fixed angle is reduced.

The utility model provides a fixed angle knife sharpener, relates to knife sharpener technical field, the fixed angle knife sharpener includes support body, angle adjustment mechanism and polishing mechanism, angle adjustment mechanism includes angle block, angle wheel and angle fixing subassembly, angle block is installed on the support body, angle block can rotate and move up and down, angle wheel and angle fixing subassembly are fixed on the support body. The angle wheel is connected to the angle block and can rotate, the angle wheel with the angle adjusted through rotation is fixed through an angle fixing assembly, the grinding mechanism comprises a grinding rod assembly, and the grinding rod assembly is connected with the angle wheel. When the knife sharpener is used for grinding a knife, the knife is fixed after the angle of the grinding rod assembly is adjusted, meanwhile, the angle block can freely slide up and down in the grinding process, and therefore the consistent knife grinding angle can be achieved through overall up-and-down movement no matter how the width, length and curve of the knife are.

A computer-implemented method of generating an addendum surface for use in forming a sheet metal part by using an Incremental Sheet Forming (ISF) manufacturing process, wherein the method includes: providing a Computer Aided Design (CAD) geometry of the sheet metal part to be formed; and generating an addendum surface that surrounds and extends the CAD geometry; wherein the addendum surface has a constant slope everywhere and has no regions of self-intersection. The addendum surface can be used to manufacture a male and / or a female underform tool for use in the ISF process, such as Two-Point Incremental Forming (TPIF). The addendum surface has a user-specified constant design wall angle, θc, which can be selected to prevent tearing of sheet metal parts during ISF due to excessive thinning at large wall angles (i.e., wall angles greater than 60°).

The utility model relates to the technical field of household appliances, in particular to an angle-adjustable blower bracket. Comprising a base and a bracket assembly, the bracket assembly comprises a supporting rod and a tray, the upper end of the supporting rod is fixedly connected with the tray, the lower end of the supporting rod is rotationally connected with the base, a limiting stopper and a swing arm are arranged on the supporting rod, and the fixing angle between the swing arm and the supporting rod can be adjusted through the limiting stopper; according to the blower bracket with the adjustable angle, the base is placed on the table top to stabilize the supporting rod and the tray, the tray and the supporting rod can horizontally rotate on the table top based on the base, the direction of an air outlet of a blower is adjusted, the swing arm rotates on the supporting rod through the limiting stopper, and therefore the vertical elevation angle of the blower can be adjusted. The swing arm abuts against the handle of the hair dryer, the swing arm can stabilize the elevation angle of the hair dryer through the limiting stopper, hair can be dried without being held by hands, and the use experience degree of a user is improved.

The invention provides a method and system for measuring a shield tunnel segment joint opening angle, and relates to the technical field of segment joint opening angle measurement, and the method comprises the steps: obtaining first information which comprises the intersection position information of shield tunnel segments, the position information of a fixed angle iron, and the position information of a displacement meter; preprocessing the first information based on Kalman filtering; the preprocessed first information is sent to a preset finite element model for analysis processing, and the first information after position optimization is obtained; obtaining current seam opening angle data of the segment based on the first information after position optimization and a preset seam opening angle calculation method; and dynamically adjusting the current seam opening angle data of the duct piece to obtain the adjusted opening angle data at the current moment. According to the method, more accurate dynamic monitoring of the opening angle of the duct piece joint is achieved, and more reliable technical support is provided for construction of a shield tunnel.

The utility model relates to the technical field of transfer after color drawing board production, in particular to a roller positioning device which comprises a rack, a moving device, a positioning translation device and a driving device, the moving device is arranged below the rack and used for adjusting the position of the rack moving left and right, and the positioning translation device is arranged on the rack and used for driving the rack to move left and right. The positioning translation device is used for transporting the color drawing board, adjusting the direction and adjusting the transportation speed, and the driving device is arranged in the rack and is used for driving the positioning translation device. The problem that an existing conveying line is inconvenient to switch between single-side conveying and double-side conveying in the conveying process is effectively solved. The angle of the conveying roller of the conveying line on one side is changed through the driving air cylinder, so that conversion between single-side conveying and double-side conveying in the color drawing board conveying process is achieved, and the second object inclined conveying part with the changeable angle and the first object inclined conveying part with the fixed angle exist at the same time; and the use scene of the utility model is increased.

The invention relates to the technical field of sampling equipment, in particular to a chromophoric pool gas-liquid mixing pool detecting and sampling device which comprises a movable support, a plurality of sampling mechanisms are distributed on the movable support at equal intervals in the front-back direction, each sampling mechanism comprises a shell fixedly installed on the movable support, and a rotating disc is rotatably installed at the bottom of each shell; and a fixed-angle rotating assembly for driving the turntable to rotate at a fixed angle is mounted on the shell. Sampling is performed through linkage cooperation of the mounting ring, the lifting mechanism, the limiting assembly, the sampling bottle and the driving assembly, the mounting ring and the sampling bottle are driven by the lifting mechanism to move downwards to enter the color development pool or the gas-liquid mixing pool, and the descending depth of the sampling bottle is limited by the limiting assembly; the sampling bottle is arranged to be of an inner and outer double-sealing structure, during sampling, the bottle cap and the sealing plate are opened at the same time, sampling can be conveniently and rapidly conducted, when samples in the bottle are taken out, the bottle cap can be opened independently, the sealing plate is kept sealed, and gas leakage in the samples is avoided.

The invention discloses a hand-eye calibration method for a rotating mechanism and a binocular endoscope in a narrow space. The hand-eye calibration method comprises the following steps: calibrating the binocular endoscope; the target ball is placed on the calibration plate, coordinates of the target ball are measured through the binocular endoscope and the laser tracker respectively, and the position relation between the binocular endoscope and the laser tracker is obtained through rigid body transformation calculation; a target ball is placed on a sleeve, the position where the sleeve is located serves as a rotation starting point, a rotating mechanism rotates at a fixed angle from the rotation starting point, and a laser tracker collects the center coordinates, the fitting rotation plane and the normal vector of the target ball after each rotation is stopped; establishing a local coordinate system of the rotating mechanism, and calculating a position relation between the laser tracker and the rotating mechanism through rigid body transformation; and by combining the position relationship between the binocular endoscope and the laser tracker, the unification of a global coordinate system is realized. According to the invention, hand-eye calibration of the rotating mechanism and the binocular endoscope in the narrow space can be realized, and a new way for global calibration of measurement of the rotating mechanism in the narrow space is provided.

The invention discloses a stand column type B-axis five-axis turning and milling composite spindle device, which is applied to the technical field of five-axis turning and milling composite spindle devices, and is characterized by comprising a B-axis assembly and an A-axis assembly, the B-axis assembly comprises a B-axis main shaft and a first three-piece tooth mouse locking chain wheel which is coaxially and fixedly connected to the B-axis main shaft and used for achieving locking of the B-axis main shaft at a fixed angle. The B-axis main shaft is further provided with a B-axis any-angle locking mechanism. The A-axis assembly comprises an A-axis main shaft and a second three-piece tooth mouse locking chain wheel which is coaxially and fixedly connected to the A-axis main shaft and used for achieving locking of the A-axis main shaft, and further comprises an A-axis rigidity enhancing mechanism used for improving the rigidity of the A-axis main shaft and an A-axis cutter loosening force unloading mechanism used for reducing instant impact force of cutter loosening. The device has the technical effects that the production efficiency and the machining precision are improved, and the use stability of the device is improved.

The invention discloses an automatic feeding PEEK production system and a production process, and relates to the field of feeding control of PEEK production, the automatic feeding PEEK production system comprises an injection table and a conveying belt, a mold on the conveying belt is conveyed to an objective table through a push rod, a feeding turntable rotates to drive and switch the objective table for feeding, and a cam shaft is arranged to extrude and push the objective table to carry to cooperate with the injection table; a die supply system facilitating automatic feeding is arranged between an injection table and a conveying belt, a feeding rotary disc, a push rod and a cam shaft are synchronously driven by feeding of an injection table screw to be in periodic movable fit, and in one period, the injection table screw is fed by a certain distance; the feeding distance synchronously drives the push rod in proportion to complete telescopic movement of one cycle, materials on the conveying belt are pushed to the objective table, in addition, the feeding rotary disc rotates by a fixed angle, rotary switching of the objective table on the side face is completed, meanwhile, the cam shaft rotates by a circle, the objective table is extruded and pushed to carry towards the injection table, and mold matching of injection molding is completed.

The utility model discloses an antenna elevation angle regulation and control device, belongs to the technical field of antennas, and aims to solve the problems that in the prior art, elevation angle regulation and control mostly adopt an interval bolt tightening mode for fixation, the angle regulation gear interval is large, the signal receiving effect is poor, and the elevation angle regulation and control structure is large and inconvenient to carry. Comprising a supporting bottom plate, a vertical rod, a lifting rod and an adjusting column, the supporting bottom plate is arranged at the bottom of the vertical rod, the adjusting column is vertically arranged on the vertical rod in a sliding mode, the lifting rod is installed on the top of the adjusting column in a sliding mode, a rotating shaft rotationally penetrates through the interior of the upper end of the lifting rod, and rotating rods are fixed to the two ends of the rotating shaft correspondingly and are concentrically distributed with the rotating shaft; and a connecting block is fixedly mounted on the upper surface of the rotating rod. According to the antenna elevation angle regulation and control device, the height position of the vertical rod can be rapidly adjusted, the installation height of the antenna is guaranteed, signals can be better received, and the lifting rod can be contracted to reduce the size when not used through the adjustable arrangement of the lifting rod.

The invention provides a multidirectional rubbing color fastness detection device, and relates to the technical field of color fastness detection.The multidirectional rubbing color fastness detection device comprises a detection assembly, the detection assembly is composed of a friction mechanism and a driving mechanism, and the reciprocating movement direction of the friction mechanism can be freely adjusted, controlled and guided according to actual requirements, so that the friction mechanism can be adjusted and guided freely on the premise that a to-be-detected sample is not disassembled and assembled again; the detection direction is reset and guided, the operation process is simplified, the detection efficiency is improved, and meanwhile, the driving mechanism has two detection types of reciprocating motion and autorotation, so that the detection requirements of different types (rotary friction and reciprocating friction) can be met, and the problems that the friction head of the rubbing color fastness detection device is fixed in moving direction, and the detection precision is low are solved. And when friction detection needs to be carried out on the surface of the sample in different directions, only the clamped sample needs to be disassembled firstly, the fixed angle of the sample is adjusted and then the sample is clamped again, so that the operation steps are tedious.

The invention provides a wafer alignment method, a wafer alignment device and semiconductor process equipment. The wafer alignment method comprises the following steps: in a first rotation mode, in response to each rotation of a motor by a first fixed angle, shooting the edge of a wafer by using photographing equipment to obtain a first local image; performing target feature point detection on the first local image to determine a target feature image; determining a first initial coordinate of the target feature point according to the target feature image; in the second rotation mode, the motor is controlled to stop for a fixed time after rotating by a second fixed angle every time, and the edge of the wafer is photographed by the photographing device to obtain a second local image; determining a second initial coordinate of the circle center of the wafer according to the plurality of second local images; determining a to-be-rotated angle and a to-be-adjusted offset according to the first initial coordinate, the second initial coordinate and the target alignment direction; and adjusting the circle center of the wafer according to the to-be-adjusted offset, and / or rotating the target feature point according to the to-be-rotated angle of the target feature point so as to realize wafer alignment.

The invention discloses a geological ecological restoration real-time monitoring and sampling device, which belongs to the technical field of soil sampling, and comprises a movable plate body, a lifting driving device, a drill rod, a spiral sheet, a hollow seat, a specimen bin, a rotary discharging bin and a rotary driving device, the rotary driving device is used for driving the rotary discharging bin to rotate by a fixed angle. According to the device, the drill rod is driven by the lifting driving device to move downwards and rotate, so that the drill rod and the spiral piece can drill into soil on the earth surface, the soil slides along the spiral piece and is taken away to the position above the earth surface, and then the soil enters the rotary discharging bin and then enters the corresponding sample bin from a discharging opening of the rotary discharging bin; when the drill rod moves downwards, the rotary driving device drives the rotary discharging bin to rotate at equal angles, so that the discharging port can face a plurality of sample bins along with the increase of the depth of the drill rod drilling into the soil.

The utility model discloses a video laryngoscope which comprises a handle, an extending mechanism and a shooting mechanism, and a display mechanism is arranged at one end of the handle. The stretching-in mechanism is arranged at the other end of the handle and comprises an angle adjusting assembly and a telescopic assembly, the angle adjusting assembly is used for adjusting the angle of the stretching-in mechanism based on the handle, and the telescopic assembly is used for adjusting the length of the stretching-in mechanism; the shooting mechanism is installed at the end, away from the handle, of the stretching-in mechanism. By means of the mode, the angle and the length of a video laryngoscope examination part are adjusted, so that the device can cope with examinations of different throat depths and different positions of a patient, and the situation that the device is inserted into the throat of the patient at a single length and a fixed angle to injure the patient is avoided.

The present invention discloses an angle steel angle cutting machine, which is applied in the field of angle steel angle cutting machines, comprising a lower mounting seat, a fixed platform mounted on the top of the lower mounting seat, a rotating assembly mounted inside the fixed platform, a connecting assembly provided on the top of the rotating assembly, and a push-pull assembly provided on the top of the connecting assembly; the present invention drives the rotating table to rotate and the upper seat to rotate synchronously by setting a driving assembly, and pushes the upper seat and the angle steel cutter to descend through the knife groove to cut the angle steel through the push-pull assembly, so that the angle cutting machine can meet the angle cutting requirements of different angles of the angle steel. Compared with traditional fixed angle cutting machines, the angle cutting machine is flexible to use, can cut a wide angle, and is suitable for the use requirements of various angle steels; and when the angle cutting machine is in use, the angle steel is kept in place, the angle steel cutter and the knife groove work synchronously, and there is no need to adjust up and down. The angle cutting machine is flexible to use and easy to operate.

The utility model relates to the field of furniture parts, and discloses a metal furniture part bending die which comprises a die frame, the outer wall of the rear side of the die frame is fixedly connected with a machine frame, the outer wall of the front side of the machine frame is connected with a bending machine in a sliding mode, the output end of the bending machine is fixedly connected with an extrusion head, and an adjusting mechanism is arranged on the die frame. An anti-deviation mechanism is arranged on the mold frame, the adjusting mechanism comprises a worm, the bottom end of the worm is rotationally connected to the inner wall of the bottom of the mold frame through a bearing, a worm gear is connected to the worm in a meshed mode, and a two-way threaded rod is fixedly connected to the inner ring of the worm gear. According to the metal fitting bending device, through the worm, the movable disc and other structures, different angles can be adjusted when a metal fitting is bent, the metal fitting can be bent by improving cooperation of the upper die and the lower die, but only the metal fitting can be bent into a single fixed angle, certain limitation exists, practicability is relatively poor, and then the use range is limited.