4results about How to "Low positioning accuracy requirements" patented technology

The utility model provides a kind of in-out boat structure and coating equipment, wherein the in-out boat structure includes lifting drive device, for driving at least two translation drive devices synchronous lifting movement;Translation drive device, for driving the corresponding translation movement piece of each translation drive device synchronous reciprocating translation movement;At least two boat moving assemblies, respectively installed on corresponding translation movement piece, the corresponding support paddle of at least two boat moving assemblies is respectively used to move at least two carriers boat into and out of at least two reaction cavities.The in-out boat structure provided by the utility model can move at least two carriers boat into and out of each group of at least two reaction cavities in the height direction of furnace body synchronously layer by layer, shorten the length of reaction cavity and narrow it under the premise of not reducing production capacity, shorten the cantilever length of support paddle of in-out boat structure adaptively, improve the rigidity of cantilever structure, reduce the scratching of carrier boat caused by cantilever deformation and shaking and the failure rate of coating equipment, and improve the working stability of coating equipment.

The utility model discloses a kind of vehicle body assembly and vehicle, it is related to vehicle technical field, wherein, vehicle body assembly includes: side window sheet metal, for fixing side window glass and setting close to the top of vehicle;Interior roof, with side window sheet metal at the same side of side window glass, the periphery of interior roof close to side window sheet metal is equipped with bending part, bending part is bent towards the direction close to side window sheet metal;Mounting seat, fixed in interior roof;And clamping piece, one end of clamping piece is connected with mounting seat, the other end of clamping piece clamps side window sheet metal, so that interior roof is installed in side window sheet metal by mounting seat and clamping piece.The technical scheme provided by the utility model improves the convenience of interior roof and side window sheet metal assembly, and improves the yield and the aesthetic degree of vehicle.

The utility model relates to an automatic positioning and pressing device for automobile lamp, including workbench, frame, roof and lifting cylinder, lifting cylinder is provided with cylinder axle, cylinder axle is fixed with lifting plate, the guide rod that passes through guide hole is set up on the lifting plate, the lower portion of lifting plate is provided with upper die holder, the lower end of guide rod is fixedly connected with upper die holder, the upper end sets up the limit block, the lifting plate is fixed with a plurality of pressing column, the lower end surface of upper die holder sets up upper butt joint inclined surface, workbench is provided with the bearing plate, is provided with ball groove and mounting hole on the bearing plate, is provided with the ball in the ball groove, the bearing plate is provided with side limit board and inner limit board, side limit board and inner limit board divide out the limit area, is provided with lower die holder in the limit area, the upper end surface of lower die holder sets up lower butt joint inclined surface, the utility model discloses through the twice positioning mode of rough positioning and accurate positioning, has reduced the positioning requirement of lower die holder on the bearing plate, has improved the pressing efficiency of lamp whole.

This technical solution belongs to the field of ultra-precision cutting technology, specifically involving a diamond cutting method based on cutting force map control. The method includes the following steps: establishing a mapping model between cutting force and material removal area; planning the cutting trajectory based on the surface morphology of the microstructure to be processed; correcting overcutting of the cutting trajectory based on the tool shape; calculating the material removal area at each cutting point; calculating the cutting force at each cutting point and connecting them into a cutting force map according to the trajectory; importing the cutting force map into the machining system for ultra-precision single-point diamond cutting of the microstructure surface driven by the cutting force map; automatically controlling the tool to follow the workpiece surface for machining, achieving high-precision positioning of the tool relative to the workpiece surface, improving the automatic compensation capability for machine tool guideway vibration, machine tool motion error, and workpiece installation tilt error, and achieving a nanoscale precision microstructure surface without brittle fracture on a hard and brittle curved substrate.