19results about How to "Angle deviation is small" patented technology

The invention relates to the technical field of cord thread structures and rope forming, in particular to a device and method for preparing an oval-structure steel cord, and the device comprises a twisting machine, a first flywheel disc, a second flywheel disc, a synchronizing mechanism, a fastening mechanism and a shaping mechanism, and an adjustable twisting wheel and an adjustable untwisting wheel which are obliquely arranged are installed in a first equipment groove and a second equipment groove correspondingly; the adjustable twisting wheel and the adjustable untwisting wheel are rotationally connected with the first equipment groove and the second equipment groove through central shafts; the synchronizing mechanism comprises a synchronizing gear set, and the fastening mechanism comprises a pressing buckle. The shaping mechanism comprises a leveling wheel set and a guide wheel set. The center shaft is rotated to drive the inclined plane cylinder to rotate, when the inclined plane cylinder rotates, the adjustable twisting wheel and the adjustable untwisting wheel can be driven to rotate at a certain inclination angle, the included angle between the adjustable twisting wheel and the adjustable untwisting wheel and a core wire can be increased or decreased, and then the twisting number and the untwisting number can be adjusted; core wires in the cord thread are prevented from being crossed and wound.

The invention relates to the technical field of precision reducer testing, and discloses an angle measurement error suppression system and method in a precision reducer dynamic test, and the system comprises a servo motor closed-loop regulation and control module, a measurement shafting motion state monitoring module, a piezoelectric ceramic driver regulation and control module, and a combined control module. The method comprises the steps that first-step regulation and control are conducted through the servo motor closed-loop regulation and control module, second-step regulation and control are conducted through the piezoelectric ceramic driver regulation and control module, and according to the running states, monitored in real time, of the high-speed-end motor and the low-speed-end motor and the motion state, monitored in real time, of the measuring shaft system, and in combination with a preset standard, the high-speed-end motor and the low-speed- The control proportion of the closed-loop regulation and control module of the servo motor and the piezoelectric ceramic driver regulation and control module is dynamically adjusted, so that the dynamic angle measurement error is kept within the preset range, and the angle measurement error caused by the dynamic change of the system structure in the speed reducer testing process can be effectively reduced.

The invention relates to an encoder absolute position angle decoding method and device, equipment and a storage medium, and the method comprises the steps: obtaining a signal combination level value corresponding to a current sine and cosine signal group in an encoder in real time, obtaining a current sine and cosine signal decoding angle, carrying out the combination processing of the signal combination level value and the current sine and cosine decoding angle, and carrying out the decoding of the absolute position angle of the encoder. A combined angle is obtained; performing judgment processing on the combined angle and the signal combined level value, and performing correction processing on the combined angle based on a judgment result to obtain an absolute position angle of the encoder; compared with the prior art, the technical scheme of the invention can improve the accuracy of the absolute position angle output by the encoder, thereby improving the operation stability of the motor, and avoiding the problem of unstable operation of the motor caused by angle deviation.

The utility model relates to the technical field of chip packaging, and discloses a positioning jig of a preset gold-tin cover plate, which comprises a limiting plate, the bottom of the limiting plate is fixedly connected with a cavity plate, and the bottom of the cavity plate is fixedly connected with a bottom plate. Threaded holes are formed in the surface of the edge part of the limiting plate, threaded holes are formed in the surface of the edge part of the cavity plate, the number of the threaded holes is eight, and the threaded holes of the cavity plate and the threaded holes of the limiting plate coincide in position. Cavity grooves are formed in the surface of the cavity plate, and the number of the cavity grooves is eighteen. The jig is simple and reliable in structure, convenient to machine, low in cost and short in period, the longitudinal dimensional deviation between the Kovar cover plate and the preformed soldering lug and the angle deviation between the Kovar cover plate and the preformed soldering lug are greatly reduced through the jig, the alignment qualification rate exceeds 99%, and the actual using effect is economical, practical and good in stability.

The application discloses an automatic pressing machine for filter oil pipe installation. The existing filter is time-consuming and laborious when assembling the inlet pipe and the outlet pipe, is easy to scratch or hurt the filter, has low assembly efficiency and large angle deviation of the inlet pipe and the outlet pipe after assembly. The automatic pressing machine is characterized in that: the positioning seat (1) is provided with an inlet pipe support plate (3) and an outlet pipe support plate (4) on both sides, the upper end surface of the inlet pipe support plate (3) is consistent with the set angle of the inlet pipe (5), the upper end surface of the outlet pipe support plate (4) is consistent with the set angle of the outlet pipe (6); the support (1) is further provided with an inlet pipe pressing head (7) and an outlet pipe pressing head (8) above. When the inlet pipe and the outlet pipe are assembled on the filter, the automatic pressing machine is time-saving and labor-saving, the filter is not scratched or hurt, the assembly efficiency is high, the angle deviation of the inlet pipe and the outlet pipe is small after assembly, and the use requirement can be met.

The present invention discloses a 5GtoB coverage optimization method, system and storage medium based on DOA, which can be widely used in the field of Internet of Things technology. The present invention performs angle quantization within the coverage angle of a 5G base station, and obtains an angle quantization line after enhancing the angle edge, and then calculates the angle spectrum characteristics according to the angle quantization line and the observation value output by the array, and estimates the DOA of each angle quantization line in a serial manner according to the angle spectrum characteristics based on the context constraint of the MDP model, and then adjusts the beamforming according to the estimated DOA, so that the subsequent DOA detection in the quantization sequence can be based on the previous DOA value through the context constraint, speeding up the detection speed and accuracy, and timely and effectively reducing the angle deviation between the wave direction and the 5G base station coverage direction, thereby providing good network coverage for toB services.

The invention discloses a photoelectric load optical axis and IMU deviation calibration device and a calibration and use method thereof, relates to the technical field of optical correction devices, and solves the problems that a traditional photoelectric load optical axis and IMU deviation calibration device is low in precision and cannot be assembled and adjusted in batches. The device comprises a collimator which is internally provided with a detector and a light source; the reflector I corresponds to the first opening; a pentaprism; the semi-transparent and semi-reflective mirror II corresponds to the second opening; a reflector II; the reflecting mirror III corresponds to the third opening; a small reflector I and a small reflector II are adhered to the surface of the IMU; light emitted by the collimator is divided into two beams after passing through the reflector I, the pentaprism and the semi-transparent and semi-reflective mirror II, and one beam of light is emitted to the small reflector I from the second opening and is reflected by the small reflector I to return according to an original light path; and the other beam of light is emitted to the small reflector II from the third opening through the reflector II and the reflector III, and is reflected by the small reflector II to return according to the original light path, and the two beams of returned light are focused at the central position of the detector.

The invention discloses a motor shell assembly and a motor, and relates to the technical field of motors, the motor shell assembly comprises a base and a shell in running fit with the base, one end of the shell is closed, and an opening is formed in the other end of the shell; a telescopic arm is rotationally mounted on the base, and one end of the telescopic arm is hinged to the bottom surface of the shell; the telescopic arm comprises a guide section rotationally matched with the base and a telescopic section rotationally matched with the shell, a cavity is formed in the telescopic section, a through groove communicated with the interior of the guide section is formed in one end of the cavity, and a vent hole is formed in the other end of the cavity; a threaded rod is installed on the telescopic section in a threaded fit mode, and a sealing plug matched with the through groove is installed at one end of the threaded rod. The motor body is installed in the shell, the shell can rotate relative to the base, and the angle deviation between the axis of the output shaft of the motor body and the axis of external transmission equipment is greatly reduced; and the axis of the output shaft of the motor body can be always kept not to deviate in the use process.

This application discloses a snake-bone structure, comprising two ends and multiple snake-bone joints disposed between the two ends. Each snake-bone joint includes a first joint and a second joint coaxially arranged, with a connecting portion between the first and second joints capable of restricting axial displacement of the first and second joints. One of the first and second joints is provided with multiple limiting beams, and the other joint is provided with a limiting groove adapted to the limiting beams. The multiple limiting beams are respectively located at the two ends of the first or second joint, and the multiple limiting beams located at the same end are arranged circumferentially along the first or second joint. There is a movement space between the end of the limiting beam and the bottom of the limiting groove. The multiple limiting beams and multiple limiting grooves cooperate to restrict the radial displacement of the first joint and the adjacent second joint. This application can restrict the snake-bone structure from radially detaching and reduce the angular deviation of the snake-bone structure after bending under stress.

The utility model relates to CCD missing item detection equipment technical field especially for a kind of copper bar and sheet metal piece CCD missing item detection equipment of automobile electric control system, including support frame, the inner side fixed mounting of support frame has conveyor belt body, the middle part of support frame upper surface is fixed with equipment rack, the top of equipment rack is fixedly installed with linear motor, the moving end of linear motor is fixed with mounting seat, the outer side of mounting seat is fixed with CCD detection camera by bolt, the detection end of CCD detection camera corresponds with the middle part of conveyor belt body, the front end of support frame is fixed with automatic correction mechanism;Automatic correction mechanism includes two correction mechanism support, the inside fixed of correction mechanism support has support seat, the top of support seat is fixed with electric cylinder, in the utility model, the attitude deviation problem when detecting copper bar and sheet metal piece of automobile electric control system is solved, correction process does not need to stop machine manual intervention, greatly improves detection efficiency and quality.

A processing method and a processing device for a three-petal combined graphite circumferential seal, belonging to the technical field of graphite seal production. The method is as follows: rough turning to obtain a blank; drawing lines on the large end face of the blank; dividing each blank into two petal seals; milling the Z-shaped interface and the arc notch of the seal; grinding the axial deflection fitting surface of the Z-shaped interface of the seal; taking the three-petal seal to form a three-petal combined graphite circumferential seal, and checking the tightness of the axial deflection fitting surface of the Z-shaped interface; turning the inner diameter and the auxiliary sealing surface and grinding the auxiliary sealing surface; turning the main sealing surface, the end face groove and the outer diameter groove and grinding the main sealing surface; rough and fine milling the outer shape and the auxiliary sealing surface; processing the main sealing surface and the auxiliary sealing surface. The present invention adopts a marking process to ensure that the processing allowance of the blank body is uniform, and adopts a processing method combining turning, rough grinding, milling, and fine grinding to improve the processing yield and performance of the three-petal combined graphite circumferential seal product.

The utility model provides a forge piece twisting tool, and relates to the field of forge piece twisting tools. The forge piece twisting tool comprises a main body arm; a first angle is formed between the working part and the main body arm, and a groove is formed in the end, away from the main body arm, of the working part; and the indicating part is rotationally arranged on the main body arm so as to display the angle between the indicating part and the main body arm when the main body arm rotates. By means of the forge piece torsion tool, whether the crank reaches the specified angle or not can be known more accurately, and compared with existing complete visual inspection, errors are effectively reduced, and angular deviation between the cranks is reduced.

The invention relates to a manual remote valve rotating tool for a spent fuel single-rod transport container, a transmission mechanism is inserted into a ball valve of the spent fuel single-rod transport container, the transmission mechanism comprises a special-shaped positioning block, the ball valve is provided with a special-shaped recess matched with the special-shaped positioning block, and the special-shaped positioning block is clamped in the special-shaped recess; the positioning assembly is arranged on the outer side of the transmission mechanism in a sleeving mode and is in a hollow cylinder shape, the inner diameter of the positioning assembly is matched with the transmission mechanism, the outer diameter of the positioning assembly is matched with the hole, and the transmission mechanism and the positioning assembly can rotate relatively; the traction assembly is connected with the transmission mechanism, installed at the end away from the ball valve and comprises a traction handle and a steel wire rope, the steel wire rope is connected with the transmission mechanism, the traction handle is connected with the steel wire rope, and the traction handle pulls the steel wire rope to drive the special-shaped positioning block and the ball valve to rotate. The angle deviation when the rotary valve tool enters is reduced, the ball valve is opened or closed more accurately, the ball valve is opened or closed manually and remotely, and the safety and reliability of the rotary valve tool are improved.

The invention discloses a manual cutting groove forming auxiliary device and a using method thereof, the manual cutting groove forming auxiliary device comprises a structure formed by combining a supporting body, a connecting body and a rotating body, and the device is fixed to the position, close to a cutting nozzle, of the front end of a cutting torch through a clamping piece on the rotating body. Through the transverse adjusting bolt and the height adjusting bolt which are arranged in the transverse direction and the height direction and the rotating body which can rotate relative to the connecting body to change the angle, the height from the cutting nozzle to a workpiece, the transverse size from the cutting nozzle to a cutting seam and the required cutting groove angle can be flexibly adjusted according to construction requirements; the direction and the position of the clamping piece mounted on the cutting torch can be changed through the clamping piece according to the construction environment and the operation habit; the device can be suitable for manual groove cutting work of different plate thicknesses and different angles, manual cutting operation is improved, the groove forming quality in arc-shaped area and narrow space work is improved, the working efficiency is improved, the labor intensity is relieved, and the practicability is improved.

This utility model relates to the field of pipe bending machine technology, specifically a high-torque bending structure for a pipe bending machine. It includes a support frame disposed on one side of the pipe bending machine, a rotating frame rotatably connected to the outside of the support frame, and a bending structure disposed above the rotating frame. The bending structure includes two bending components symmetrically disposed above the rotating frame. Each bending component includes a fixing plate, and a mold is movably sleeved on the outside of an H-shaped positioning rod. A limiting component is disposed on one side of the bending component, and a supporting component is disposed on one side of the rotating frame. In this utility model, multiple molds are connected and fixed through the interlocking of cross-shaped locking strips and cross-shaped locking slots, allowing the molds to be adjusted at fixed angles. This enables a single mold to adapt to different pipe bending requirements. The limiting effect of the pressure plate facilitates angle adjustment of the mold and improves mold stability. A bracket is provided on one side of the mold to support the pipe, preventing downward displacement of the pipe and reducing angular deviation during bending, thus maintaining stability during pipe bending.

The utility model relates to carbon fiber manufacturing technical field especially is a kind of carbon fiber impregnation curing combined equipment.The impregnation device, primary heating curing device, secondary heating curing device are sequentially fixed in machine table along carbon fiber silk processing direction, realize impregnation, primary low-temperature curing, secondary high-temperature curing continuous operation.Wherein, primary heating curing device includes base, heating mould, position adjusting assembly and pressure locking assembly.Base is based on machine table.Heating mould is placed in base, and the upper surface is provided with silk passage.Position adjusting assembly and pressure locking assembly are installed based on base.Position adjusting assembly is used to drive heating mould to approach / close to carbon fiber silk conveying path, to adapt to different rigid tow: for small K number tow, heating mould approaches carbon fiber silk conveying path to reduce friction, for large K number tow, heating mould is far away from carbon fiber silk conveying path to prevent the occurrence of inlet jamming phenomenon.

The utility model discloses a reinforcing bar node strengthening connecting device and a reinforcing mesh, which belong to the technical field of reinforcing bar connection, and comprise a first connecting piece, a second connecting piece and an angle adjusting piece, the first connecting piece and the second connecting piece are respectively connected with two ends of the angle adjusting piece; the first connecting piece comprises a first half shaft sleeve, a second half shaft sleeve, a rotating joint and a locking structure, the first half shaft sleeve and the second half shaft sleeve are connected through the rotating joint to form a sleeve for locking a reinforcing steel bar, and the locking structure is arranged at the closed position of the first half shaft sleeve and the second half shaft sleeve. The structure of the second connecting piece is the same as that of the first connecting piece, the first connecting piece and the second connecting piece are connected with different reinforcing steel bars respectively, the connecting angle of the reinforcing steel bars can be adjusted in advance or temporarily on site through the angle adjusting piece, and the strength of connecting reinforcing steel bar joints and the accuracy of angle positioning are improved; and the transition connection strength and the shape stability between large components or different components are improved.

The application relates to an automobile wire harness bundling tool and relates to the technical field of wire harness manufacturing. In order to solve the problems of low efficiency and consistency of manual bundling, the tool includes a tool plate, a tool column is vertically arranged on the tool plate, a bundling seat is arranged on the tool column, a lifting mechanism for lifting the bundling seat is arranged on the tool column, a bundling mechanism is arranged on the bundling seat, the bundling mechanism comprises two vacuum adsorption plates and two turnover air cylinders, the two vacuum adsorption plates are symmetrically hingedly arranged on the two sides of the bundling seat, the two vacuum adsorption plates are arranged at intervals, a plurality of adsorption holes are formed in the working surface of each vacuum adsorption plate, the two turnover air cylinders correspond to the two vacuum adsorption plates respectively, the cylinder body of the turnover air cylinder is obliquely arranged on the bundling seat, and the piston end of the turnover air cylinder is hingedly arranged on the back surface of the corresponding vacuum adsorption plate. The application has the effect of significantly improving the bundling efficiency and consistency.

The utility model relates to the technical field of pole piece round corner die cutting, in particular to a compatible type outer round corner die cutting device, in the using process, corners to be punched of pole pieces sequentially stretch out of a conveying belt, then outer round corner punching is carried out, outer round corners are machined, the compatible type outer round corner die cutting device can adapt to pole pieces with different lengths, repeated replacement of the conveying belt with the proper width is avoided, and production efficiency is improved. And the working efficiency is greatly improved.