4results about How to "Uniform surface quality" patented technology

The application relates to the technical field of building construction, in particular to a steel formwork polishing device for building construction, which comprises a workbench; a supporting plate is fixedly connected to the top end of the outer wall of the workbench; a square plate is arranged on the inner side wall of the supporting plate; a circular plate is rotatably connected to the inner side wall of the square plate; a driving device is fixedly connected to the top end of the outer wall of the circular plate through a fixed block one; the driving device drives the rotating shaft and the polishing disc to rotate, the steel formwork is polished and cleaned, meanwhile, the rotating shaft drives gear one to rotate, gear one moves along the tooth groove of the annular rack one when rotating, the polishing disc is polished and rotates along with the circular plate, the cleaning range of the polishing disc is increased, the polishing disc can quickly clean the large-area steel formwork plane, the movement track of the polishing disc makes the steel formwork surface form irregular and multidirectional scratches, the one-way line and spiral line defects generated by the traditional single rotating direction polishing are avoided, and the uniform and smooth surface quality is obtained.

The invention discloses a curved surface self-adaptive grinding and polishing method based on a two-degree-of-freedom force control grinding and polishing robot. The method comprises the steps that a surface image of a workpiece to be machined is acquired, and local curvature information is extracted; calculating a feed-forward compensation amount according to the local curvature information, and correcting a preset expected position and a preset expected speed based on the feed-forward compensation amount to obtain a corrected expected position and a corrected expected speed; on the basis of the position deviation between the corrected expected position and the actual position and the speed deviation between the corrected expected speed and the actual speed, inertial parameters and damping parameters of a position-based impedance model are adjusted in real time through a fuzzy adaptive algorithm; and generating a control instruction according to the adjusted impedance model, and driving the two-degree-of-freedom linear motion module to perform compensation motion. According to the method, through cooperation of curvature feedforward compensation and fuzzy variable impedance control, force control lag at the curvature sudden change position is reduced, and force control stability and machining consistency of complex curved surface grinding and polishing are improved.

This invention is a steel billet grinding process with a constant grinding wheel linear speed. First, the steel billet is automatically fed, positioned, and locked. A laser rangefinder detects the actual length of the steel billet and calibrates the grinding wheel to align with the billet's length center. Then, the grinding wheel is controlled to apply pressure and adhere to the steel billet, driving the billet to translate and complete the grinding of both sides. During the grinding stage at the billet's ends, the speed and pressure are automatically reduced to avoid over-grinding and sharpening at the ends. A trolley tilting mechanism rotates the billet 45° multiple times, cyclically grinding all sides and edges of the billet, using a repeated grinding method with decreasing feed depth to ensure grinding accuracy. Simultaneously, photoelectric switches on both sides of the grinding wheel monitor the wear on the outer circumference of the grinding wheel in real time, dynamically adjusting the grinding wheel motor speed to maintain a constant grinding linear speed, and simultaneously calibrating the distance between the grinding wheel and the billet to stabilize the grinding pressure. This invention effectively ensures uniform overall grinding quality of the steel billet and improves the grinding accuracy and stability of the billet's sides and edges.

The utility model discloses an aluminium alloy casting blank burr cleaning device relates to work piece post -treatment technical field. The aluminium alloy casting blank burr cleaning device is fixedly connected with the cleaning pool in the base, is fixedly installed with ultrasonic cleaner in the cleaning pool bottom, is provided with chain type conveying equipment on the cleaning pool top including: shell, support leg, pull rod, pouch net, servo motor, driving sprocket, driven sprocket, conveying chain, track slot, spring, telescopic link, sliding block, adopts ultrasonic cleaner to clean aluminium alloy casting blank burr, can utilize cavitation effect that high -frequency vibration generates, and the track slot shape that is cooperated with cleaning pool is all designed as half arc, can form the conveying path of continuous smoothness, makes the pouch net of suspension conveying drive casting to be not jammed along the arc trajectory in and out the cleaning pool, and compact arc layout is also more easily integrated with former and latter procedure, adapts the automatic production line, and the continuity, stability and production efficiency of cleaning device are enhanced significantly.