3results about How to "Accurate projection" patented technology

A laser-assisted positioning mechanism for spinning belongs to the technical field of mechanical processing. The mechanism aims to solve the problems of low precision and long calibration time in the traditional positioning method of multi-axis numerical control spinning equipment. It includes a sliding table module composed of a sliding table support and a sliding table body. The sliding table body is connected to the sliding table support through a linear guide rail. A servo motor drives the displacement of the sliding table body through a synchronous belt transmission mechanism, which includes a first synchronous wheel, a second synchronous wheel, and a closed-loop synchronous belt. The bottom of the sliding table body is fixed to the synchronous belt. A laser level is rigidly fixed to the side of the sliding table body through four symmetrical mounting holes and a mounting slot, projecting a laser reference line parallel to the axis of the spinning wheel. The bottom of the sliding table support is provided with a double fixed seat, which is rigidly connected to the processing platform through bolts. The mechanism realizes a displacement accuracy of 0.1 millimeters through closed-loop control of the servo motor, allowing the laser reference line to be dynamically adjusted along the axis of the spinning wheel.

This utility model relates to the field of automotive window tinting tools, specifically an auxiliary tool for automotive window tinting with positioning and supplemental lighting functions. It includes an outer moving part and an inner moving part. The outer moving part is located on the outer side of the automotive window glass, and the inner moving part is located on the inner side. The outer and inner moving parts are magnetically attracted to each other across the window glass. A light guide plate is detachably installed on one side of the inner moving part, and a light source is installed inside the inner moving part near the light guide plate. The light from the light source is guided by the light guide plate to illuminate the edge of the window. In this auxiliary tool for automotive window tinting with positioning and supplemental lighting functions, the outer and inner moving parts cooperate with each other through the window glass via magnetic attraction, enabling quick and accurate positioning, cutting, and application of the window tinting film. Compared to traditional positioning methods that rely on experience and simple measuring tools, this structure effectively avoids problems such as film misalignment.

This utility model discloses a lighting bracket for underground mining operations, including a bracket assembly, connecting rods, and a base. The bracket assembly is T-shaped and includes a lamp holder, a suspension groove, and a support rod. The lamp holder is located at the upper end of the support rod, and a fixing plate is provided above the lamp holder. Several screw holes are evenly distributed on both sides of the fixing plate for fastening with bolts. A limit groove is provided at the bottom, and a suspension groove is provided on one side of the middle of the bracket. The base is L-shaped and includes a base and a fixing box. The base is T-shaped and includes a horizontal groove and a vertical groove. One end of the horizontal groove is welded to the middle of the vertical groove, and the lower end of the support rod is welded to the top of the vertical groove. The frame of the fixing box is welded to the top of the horizontal groove. The connecting rods are triangularly symmetrically distributed. The right end of the connecting rod is welded to the support rod, and the left end of the connecting rod is welded to the fixing box. A power supply is placed inside the fixing box, the lamp is fixed to the lamp holder, and a video recorder is fixed in the suspension groove.