6results about How to "Reduce assembly accuracy" patented technology

This invention relates to prism assembly and calibration technology. To address the problems of low assembly efficiency and inability to guarantee assembly accuracy in existing curved prisms, a method for aligning curved prisms is proposed. First, based on the relationship between the curved prism and the optical system, the position coordinates of the two theoretical sphere centers of the curved prism are calculated. Then, the position coordinates of the two sphere centers are located using a coordinate measuring system, and target balls are placed at the corresponding position coordinates of the two theoretical sphere centers. A first centering instrument and a second centering instrument are used to align the target balls at the position coordinates of the two theoretical sphere centers, and then the first and second centering instruments are fixed. The target balls at the position coordinates of the two theoretical sphere centers are removed, and the curved prism is installed into the optical system. The curved prism is adjusted, and the two actual sphere centers on the curved prism are observed through the first and second centering instruments until the two actual sphere centers coincide with the two theoretical sphere centers, thus completing the assembly and calibration of the curved prism.

The technical scheme discloses a cover clamping device of a glue binding machine, which comprises a driving assembly, a first translation assembly, a second translation assembly, a cutter plate assembly and a clamping table plate. The driving assembly drives the first translation assembly and the second translation assembly to move in a step-by-step intermittent mode. The step-by-step intermittent mode refers to a single-morph relative motion mode of the two translation assemblies. The first translation assembly is provided with a cam and a clamping sliding block. The cam intermittently drives the clamping sliding block to reciprocate. The second translation assembly is provided with a driving gear and a rack. The driving gear intermittently drives the rack to reciprocate. The cutter plate assembly is provided with two cutter plate sliding blocks which are respectively fixed to the first translation assembly and the second translation assembly. The clamping table plate is provided with a sliding groove. The cutter plate sliding blocks reciprocate in the sliding groove. The technical scheme solves the technical problem of designing a cover clamping device which is driven by a single-morph step-by-step independent operation.

This application relates to the field of machining technology, and discloses an ultrasonic tool holder, ultrasonic machining equipment, and machine tool. The ultrasonic tool holder includes: a tool body and a connecting sleeve. The tool body has a second end and a first end arranged opposite to each other in a front-rear direction. The first end is adapted to be connected and fitted with a spindle, and the second end has a mounting cavity for accommodating a transducer. A wireless receiving unit is provided on the outer periphery of the tool body. The connecting sleeve is connected to the second end and arranged coaxially with the tool body. An outer shell is fitted onto the outer periphery of the connecting sleeve through a bearing, wherein the inner diameter of the bearing is less than or equal to the outer diameter of the second end. Therefore, by placing the bearing between the connecting sleeve and the outer shell, the bearing does not occupy the outer periphery space of the tool body, which reduces the axial dimension of the tool body, thereby improving the rigidity of the tool body and reducing the overall axial dimension of the ultrasonic tool holder. It also increases the structural dimensions of the transducer and reduces the radial dimension of the bearing, thereby improving ultrasonic machining performance.

The invention relates to the technical field of hydraulic support manufacturing, in particular to a positioning tool for a hydraulic support structural part, the structural part and a positioning method. The positioning device comprises a positioning piece and a positioning plate, the sleeve is provided with a through insertion hole perpendicular to the axis of the sleeve, the positioning piece comprises a first pin shaft and a second pin shaft which are parallel and have flush ends, and the first pin shaft or the second pin shaft can be inserted into the insertion hole and can be attached to the insertion hole; the positioning plate comprises a plate body, the plate body can be clamped on the side protection plate in the mode of being attached to the inner side wall of the side protection plate, an arc-shaped groove is formed in the plate body, and the arc-shaped groove and the sleeve are coaxial. By arranging the positioning piece and the positioning plate, not only can the perpendicularity of the sleeve be detected and the assembly error of the sleeve be reduced, but also the mounting position of the hinge seat can be positioned so as to improve the subsequent hinge precision of the guide rod and the hinge seat.

The utility model relates to the field of mould guide pillar automatic assembly, especially a kind of precision mould guide pillar automatic assembly unit.It includes press fitting machine, pressing plate and auxiliary structure, the side of press fitting machine is equipped with control button, the inner wall of press fitting machine is equipped with electric push rod, the output of electric push rod is equipped with push plate, the lower surface of push plate is fixed with pressing plate by means of auxiliary structure, the inner wall of press fitting machine is equipped with adjusting structure, the adjusting structure includes fixed plate, the fixed plate is fixedly connected with press fitting machine, the upper surface of fixed plate is equipped with two connecting grooves, the inner wall of two connecting grooves is slidably connected with two locating blocks.The precision mould guide pillar automatic assembly unit provided by the utility model can position the mould, making the assembly process of guide pillar and mould more stable and safe, avoiding the need for personnel hand to hold during the assembly process of guide pillar and mould, which not only improves safety but also improves assembly efficiency.

The utility model discloses a floating type electric connector, which comprises a first connecting end and a second connecting end, the first connecting end comprises a positioning ring and a conductive terminal, and the conductive terminal is fixed in the positioning ring; the second connecting end comprises a platform and a jack matched with the conductive terminal, and the jack is located on the platform; a first groove is formed in the positioning ring, and a water leakage hole communicated with the first groove is formed in the lower end of the first connecting end; a first sealing ring is arranged at the lower end of the first connecting end, and a second sealing ring is arranged between the second connecting end and the first connecting end; a first hollow part is arranged between the conductive terminal and the first sealing ring; and a second hollow part is arranged between the platform and the second sealing ring. According to the floating type electric connector, the first connecting end and the second connecting end are arranged, the first hollow part and the second hollow part play a role in buffering floating in the installation process of the connector, the assembly precision between the first connecting end and the power utilization end and the assembly precision between the second connecting end and the battery are reduced, and the installation efficiency of the floating type electric connector is improved.