6results about How to "Reduce manual measurement errors" patented technology

The invention discloses a quantitative recognition device for the number and size of bubbles at a rotating impeller of a multiphase pump. The quantitative recognition device comprises a two-phase flow experiment system, the multiphase pump, a high-speed camera, a light source and the like. The preprocessing and data analysis system and the deep learning system are arranged in the computer; the two-phase flow experiment system and the image acquisition system are electrically connected with the computer through lines. The invention further discloses a quantitative recognition method for the number and size of the bubbles at the rotating impeller of the multiphase pump. According to the method, the problems of low blistering recognition precision, low efficiency and large error caused by the existing manual measurement method are solved, and a reference method is provided for exploring the influence of gas distribution at the impeller in the multiphase pump on pump operation and optimizing design of the multiphase pump.

The utility model provides an adjustable supporting tool for assembling an offshore photovoltaic steel grid. The adjustable supporting tool comprises a height adjusting module, a fixing module, a telescopic module and a supporting module, wherein the fixing module, the telescopic module and the supporting module are sequentially connected from top to bottom. The fixing module is connected with an offshore photovoltaic steel grid; one end of the telescopic module is embedded into the supporting module and is detachably connected with the supporting module; the height adjusting module is connected with the telescopic module and used for adjusting the depth of the telescopic module embedded into the supporting module. The supporting module is used for supporting the fixing module and the telescopic module. According to the utility model, a modularized combined structure of the fixing module, the telescopic module, the height adjusting module and the supporting module is adopted, and the depth of the telescopic module embedded into the supporting module is adjusted through the height adjusting module, so that the levelness and the butt joint precision during the assembly of the steel net rack are ensured, and the assembly operation of the offshore photovoltaic steel net rack can adapt to the tide level change; manual measurement errors are reduced, and the assembling efficiency and quality are greatly improved.

The utility model discloses an auxiliary welding device for a battery bracket of a new energy electric bus. The auxiliary welding device aims at solving the problems that traditional welding positioning is difficult, clamping is not stable, and universality is poor. The device comprises a bottom, a bottom plate groove is formed in the bottom, and a threaded rod and a guide rod in the groove are connected with a rotating motor to drive a movable vertical plate and a fixed vertical plate to adjust the distance. Aligning groove holes are formed in the opposite faces of the two vertical grooves, a limiting clamp assembly is arranged above to clamp a workpiece, and an adjusting assembly is installed in the middle vertical groove. The limiting clamp assembly controls a clamp lead screw through a limiting motor, and precise clamping is achieved. And the adjusting assembly integrates various transmission structures, so that the movable plate can be flexibly adjusted in a three-dimensional space. An arc-shaped shallow groove in the movable plate assists in positioning, a laser transmitter and a laser receiver on the lower surface are arranged in a crossed mode, and position deviation is monitored in real time and calibrated. The device is accurate in positioning, stable in clamping and high in universality, the welding quality and production efficiency of the battery bracket are effectively improved, and development of the new energy electric bus manufacturing industry is promoted.

The invention relates to a method for automatically detecting the profile contour of a thermal protection component, and solves the problems that the manual detection efficiency is low and a thermal protection coating on the surface of a projectile body is easily damaged at present. An automatic turntable for placing the thermal protection component is designed, a measuring head mounted on a calibration mechanical arm is used for automatically scanning and shooting the appearance profile of a product, an automatic detection path of the profile of the thermal protection component is determined by adjusting the angle of the turntable and the pose of the mechanical arm, and the scanning pose of the mechanical arm is solidified by programming; subsequent thermal protection components of the same type do not need to be calibrated again, product profile detection is completed according to the calibration path and procedure, data analysis, a production distribution diagram and a measurement report are automatically conducted according to the model, and rapid detection of the profile tolerance, the gap and the order difference of the product is achieved. A manual measurement mode is replaced, the product only needs to be subjected to point pasting once for programming, subsequent products do not need to be subjected to point pasting, damage to the appearance of the thermal protection product and manual measurement errors are reduced, the labor and time cost is reduced, and the production efficiency is improved.

The invention discloses a deep groove concrete pouring liquid level real-time monitoring device and a use method, a mounting frame bears an electric capstan, an electronic control system and a tension sensor, a detection head is suspended at the junction of a concrete liquid level and a slurry mixing layer, and a steel wire rope is respectively connected with the detection head and the electric capstan. The tension sensor monitors tension changes of the steel wire rope in real time, and the electronic control system achieves automatic tightening by judging the loosening state of the steel wire rope. When the concrete liquid level rises, the detection head floats upwards to loosen the steel wire rope and the tension is lower than a set threshold value, the electronic control system drives the electric capstan to automatically tighten the steel wire rope to track the concrete liquid level, and the real-time liquid level height is converted through the displacement of the steel wire rope; dynamic tracking of the liquid level is achieved through tension closed-loop feedback, the defects that a traditional manual feeler lever sensing monitoring method is greatly interfered by a slurry mixing layer and depends on manpower are overcome, the functions of slurry adhesion resistance, automatic adjustment and abnormal alarm are achieved, and the deep groove pouring construction quality and efficiency are remarkably improved.

This invention discloses a method for quickly aligning the coordinate system of a fixture in a shell-type machining center: Using the coordinates of the machining center as a reference, the coordinates of the fixture's B-axis reference point are measured, and the fixture's B-axis compensation angle is calculated using these coordinates. The fixture position is adjusted according to the B-axis compensation angle, and the coordinates of the fixture's locating pin are measured. The fixture's A-axis compensation angle is calculated using these coordinates. The fixture position is adjusted again based on the B-axis and A-axis compensation angles, and the coordinates of the fixture's support rod are measured. The coordinates of the fixture's X-axis origin are calculated using these coordinates. The fixture coordinate system is then generated using the B-axis compensation angle, A-axis compensation angle, locating pin coordinates, and X-axis origin coordinates. This invention significantly improves the alignment efficiency of the fixture coordinate system, saves debugging time, and reduces manual measurement errors.