5 results about "Hexahedron" patented technology

The invention discloses a device for placing an optical communication module in an aerospace environment. The device comprises a hexahedron chassis, four surfaces of the hexahedron chassis are integrally formed, the other two surfaces are respectively an upper cover plate and a front panel, a support plate is arranged in the hexahedron chassis, and the support plate is parallel to a bottom plate in the hexahedron chassis. A wavelength division multiplexer and a wavelength division demultiplexer are fixed on the support plate, a group of mounting grooves are formed in a bottom plate in the hexahedron chassis, a heat dissipation boss is arranged beside the mounting grooves, a circuit board is arranged between the heat dissipation boss and the support plate, and a group of screw seats with internal threads are arranged at the periphery of the heat dissipation boss. A group of fixing holes corresponding to the screw seats are formed in the circuit board; and a group of connector mounting holes are further formed in one side plate of the hexahedral chassis. The device is low in cost and compact in structure, and can improve the heat dissipation effect of electronic components in the aerospace optical communication module.

The invention belongs to the field of elevator packaging and transportation, and particularly relates to an intelligent elevator packaging box capable of being repeatedly used and an implementation method. The intelligent elevator packaging box comprises an elevator packaging box body, a modular assembling tray, quick hasps and box opening control systems, wherein an upper cover plate and a plurality of side plates are assembled into a hexahedral box body without a bottom surface, the modular assembling tray comprises tray modules, connecting battens and a tray upper plate, the tray upper plate and the hexahedron box body without the bottom surface form a closed box body, the bottom surface of the tray upper plate is connected with the connecting battens through the tray modules, a first hasp mounting opening and a second hasp mounting opening are formed in every two adjacent surfaces respectively, clamping plate parts of the quick hasps are mounted at the first hasp mounting openings,hasp parts are mounted at the second hasp mounting openings, and the box opening control systems are embedded in the tray modules and are connected with the quick hasps. The intelligent elevator packaging box is simple in structure, capable of being repeatedly used through the quick hasps, the effects of being firm and environment-friendly are achieved, and the intelligent design is convenient touse.

The invention relates to a laser welding clamp for a grillwork. The laser welding clamp comprises a bottom plate (1), a cover plate (3) and a side coaming (2), wherein the bottom plate (1) and the cover plate (3) are parallel to each other; the side coaming (2) is arranged between the bottom plate (1) and the cover plate (3) and forms a hexahedron structure with the bottom plate (1) and the coverplate (3); the grillwork to be welded is fixed in the hexahedron formed by the bottom plate (1), the cover plate (3) and the side coaming (2); a positioning pin is arranged on the bottom plate (1) andis used for positioning the cover plate (3); clamping grooves are formed in the opposite surfaces of the bottom plate (1) and the cover plate (3); the upper end and the lower end of the side coaming(2) are inserted into the clamping grooves correspondingly; and a plurality of welding holes are formed in the cover plate (3). According to the laser welding clamp, the grillwork is convenient and quick to fix, and the requirement for welding a 90-degree right-angle part in a lattice cell can be met; the grillwork is convenient to automatically weld and process, so that the welding efficiency andthe welding precision are improved.

The invention particularly discloses an analysis method for obtaining transmission stress of a harmonic gear, which comprises the following steps of simplifying a model established in three-dimensional software, and performing finite element mesh division on an assembly model by adopting hexahedral mesh units; importing the inp format grid model into ABAQUS, and giving material attributes to the component; setting an analysis step and an analysis process output item; defining mutual contact action on the grid assembly body model, and applying load and boundary constraint conditions; analyzing the calculated and displayed data, and extracting stress, strain and other data of a unit integration point of a certain increment step under a certain analysis step of the harmonic gear from an analysis result; the harmonic reducer finite element strength analysis method is beneficial to representing the mutual relation among all the parts of the harmonic reducer, can truly simulate the stress condition of the harmonic reducer, improves the accuracy of harmonic reducer finite element strength analysis, provides a theoretical basis for strength analysis of harmonic gear key parts, and is suitable for popularization and application, and the defects of high cost, long time consumption and the like of an experimental mode are effectively avoided.

The invention discloses a welding jig for laser tin soldering of a hexahedron. The welding jig comprises a base and a jig assembly; the jig assembly is rotatably arranged on the base; the jig assemblycomprises a connecting flange, a fixed seat, a pressing plate and a pressing claw assembly; the connecting flange is rotatably connected with the base; one face, near the connecting flange, of the fixed seat is provided with connecting pillars and a guide shaft; the connecting pillars are connected with the connecting flange; one face, far away from the connecting flange, of the fixed seat is provided with guide pillars; the pressing plate is arranged on the guide pillars; the pressing plate can move along the guide pillars so as to fix a product by cooperating with the fixed seat; the pressing claw assembly is arranged on the guide shaft; and the pressing claw assembly has two states of opening and closing, and when being in the closing state, the pressing claw assembly is used for holding down a flexible printed circuit board (FPC) flat cable onto a product bonding pad.