6results about How to "Eliminate installation errors" patented technology

The utility model discloses an anti-vibration stable automobile crank shaft. The anti-vibration stable automobile crank shaft comprises a main shaft, a crank arm, a brake mounting plate, a fixer and a fastener, the fastener comprises a fastening bolt and a fastening nut, non-return grooves are circumferentially distributed in one end face of the fastening nut at equal intervals, an installation groove is formed in the fixator, a sliding ring block is installed in the installation groove in a floating mode, non-return blocks are circumferentially distributed at the top end of the sliding ring block at equal intervals, and the non-return blocks extend out of the installation groove through groove openings and can be inserted into the non-return grooves. An unlocking piece is arranged on the fixer and is used for completely retracting the non-return block into the mounting groove; through the arrangement of the non-return block, the non-return groove and the sliding ring block, the non-return block can be driven by the inclined plane to enable a worker to normally rotate the fastening nut, and when the fastening nut is loosened, the fastening nut cannot reversely rotate to reset; and through the arrangement of a connecting block, a positioning straight groove and a second screw rod, the position of the mounting hole can be adjusted within a certain range, so that the mounting error is eliminated, and different requirements are better met.

This application relates to the field of tool measurement equipment technology, and in particular to a tool parameter measurement system and method. In use, a standard part is first clamped onto a tool pre-adjustment component. A moving assembly drives a first mounting component to move vertically and along a first direction, allowing the camera imaging device to focus on the zero-gauge surface of the standard part. A laser sensor is connected and installed on the first mounting component. Utilizing its rotational function around the first direction and its fine-tuning function along a second direction, combined with the mandrel surface of the standard part, the yaw angle and offset are calibrated to establish a unified linear laser measurement coordinate system. When the standard part is replaced with the part to be measured, the camera imaging device can be used to measure the projected dimensions of the part, or the laser sensor can be used to scan the spiral groove contour of the part and calculate the core diameter after coordinate transformation and filtering, or the laser sensor can be rotated to scan one revolution to obtain a point cloud and reconstruct a 3D model. The laser sensor can be disassembled and reassembled as needed, achieving integrated tool measurement and improving measurement accuracy.

This invention relates to the field of process control technology in metal material forming, and discloses an optimized control method for a wheel hub liquid forging process. A punch displacement sensor and a liquid forging pressure sensor are set up to synchronously collect and calibrate displacement and pressure signals, and perform zero-point correction to obtain a displacement and pressure sampling sequence. The displacement change rate, pressure change rate, and effective compensation displacement increment are calculated, and the filling end and compensation evaluation termination intervals are obtained according to statistical thresholds. The effective compensation displacement is accumulated within the evaluation interval, and the pressure area is obtained by integrating the pressure to construct a smoothness index. The start time of secondary pressurization, platform pressure, and duration are discretized into a candidate set to generate a target pressure trajectory that meets the pressure change rate constraint and calculates the smoothness. Optimal parameters are screened and corrected, and the pressure command sequence is output and solidified for distribution to the hydraulic system, achieving quantifiable optimization and stable execution of parameters.

The utility model is suitable for semiconductor technical field provides a kind of fixed crystal swing arm device and fixed crystal machine, the above-mentioned fixed crystal swing arm device includes support seat, movable adjusting part, error correction structure and swing arm assembly, and fixed crystal machine includes the fixed crystal swing arm device of any one of the above-mentioned. The position of movable adjusting part in the first direction can be adjusted by error correction structure. When the accuracy of fixed crystal swing arm device appears error after installation, the position of movable adjusting part and swing arm assembly can be adjusted by error correction structure, so that the actual position of the part on swing arm assembly and the preset position of chip contact each other coincide, and then the purpose of eliminating installation error is realized. Compared with the fixed crystal swing arm device in prior art, when the error is corrected, the overall position of fixed crystal swing arm device does not need to be adjusted, only the movable adjusting part needs to be adjusted by error correction structure, so that the correction of error can be realized, and the correction adjustment of error is more convenient and fast.

The application relates to a detection method of a ball spline shaft raceway straightness detection instrument. First, a space relative coordinate system of a to-be-detected ball spline shaft is constructed through parameters of the to-be-detected spline shaft; a plane parallel to the head-tail frame center in the Y-axis direction is set as an X-Z plane, and an arbitrary point of the maximum outer circle of the ball spline shaft in the horizontal direction is taken as a coordinate system origin (0, 0); the spline shaft outer circle parameters are measured through a probe; the measured spline shaft is rotated, the probe is aligned with the raceway, and (x g0 , 0) is obtained; when the probe moves in the X-axis direction, n data points (x gi , z gi ) are obtained, and the real raceway (x i , z i ) is calculated; the data points (x i , z i ) are fitted through a least square method, a ball spline shaft raceway fitting straight line x=bz+a and specific deviation can be obtained. The application can detect the straightness deviation of the ball spline shaft raceway.

The utility model belongs to the technical field of building decoration, and particularly relates to a decoration integrated plate assembly type integrated structure which comprises a base plate, a plurality of detachable decoration plates are arranged on one side of the base plate, and a buffering mechanism used for buffering the decoration plates is arranged in the base plate. An adjusting mechanism for adjusting four corners of the decorative plate is arranged on the outer wall of the decorative plate; elastic inserting pipes are fixed to the four corners of one side of the decorative plate, each elastic inserting pipe is formed by arranging a plurality of arc-shaped inserting plates in an equidistant array mode in the circumferential direction, first inserting grooves are formed in the positions, corresponding to the elastic inserting pipes, of the outer wall of the base plate, and first limiting grooves are formed in the inner sides of the first inserting grooves; according to the utility model, the decorative plate and the base plate can be quickly disassembled and assembled; external force impact energy can be absorbed, the impact resistance is improved, the service life is prolonged, the four corners of the decorative plate can be effectively adjusted, installation errors are eliminated, and the flatness of a decorative face is guaranteed.