36results about How to "Quick Position Assembly" patented technology

The invention provides a large combined dual-jacking mould structure. The large combined dual-jacking mould structure can solve the problem that an upper mould cannot perform demoulding when an existing single-jacking mould is used for forging a large deep-cavity thin-walled forge piece. The large combined dual-jacking mould structure is simple and convenient to process and assemble; and the upper mould and a lower mould can both achieve demoulding of the forge piece in a jacking mode. The large combined dual-jacking mould structure comprises an upper mould structure and a lower mould structure; the upper mould structure comprises an upper mould base and the upper mould, wherein the upper mould is mounted beneath the upper mould base; a lower mould jacking mechanism is mounted in the lower mould structure. The large combined dual-jacking mould structure is characterized in that an upper mould jacking mechanism is mounted in the upper mould structure; the upper mould jacking mechanism comprises an upper jacking rod and a compression spring; the upper jacking rod sequentially penetrates through the upper mould and an upper jacking rod mounting hole of the upper mould base from bottom to top; the flange at the bottom of the upper jacking rod is in clearance fit with a groove of the upper mould; the diameter of the upper jacking rod mounting hole of the upper mould base is larger than that of an upper jacking rod mounting hole of the upper mould; the part, located in the upper jacking rod mounting hole of the upper mould base, of the upper jacking rod is sleeved with the compression spring which is locked on the top surface of the upper mould through a tight nut and a flat washer.

The invention discloses a casement window hinge. The casement window hinge comprises a slide rail, a pull rod, a hinge fixing part fixed to one end of the slide rail, and a sliding part installed in the slide rail and capable of sliding; the pull rod is fixed to the sliding part through a connecting part; the pull rod makes the angular movement relative to the slide rail when the sliding part slides; when the pull rod and the slide rail are in a closed state, one end of the pull rod abuts against the hinge fixing part; the slide rail comprises a first groove and a second groove which are in perpendicular intersection; the hinge fixing part comprises a corner wrapping end, a connecting end and a fixing end; the corner wrapping end and the fixing end are connected by the connecting end; the corner wrapping end and the fixing end are perpendicular to each other; the connecting end is contained in the first groove; the fixing end is installed in the second groove; and the casement window hinge further comprises a limiting block which is fixed to the slide rail and used for fixing the fixing end, and therefore the fixing strength of the hinge fixing part fixed to the slide rail is improved.

The invention relates to an electrostatic spinning spray nozzle capable of achieving quick multi-needle-tip positioning and relates to electrostatic spinning. The spray nozzle comprises an upper coverplate, a needle tip mounting plate, an electric conduction plate, a needle tip array and an air cover; the upper cover plate is provided with a liquid inlet and connected with a liquid supply devicethrough a hose; the needle tip mounting plate is of a step structure, the step height difference is identical to the height difference of needle tips at the corresponding positions, and the needle tipmounting plate is provided with a needle tip positioning hole; the electric conduction plate is connected with a positive electrode of a high-voltage supply source and is of a separated structure; the needle tip array is provided with the needle tips distributed in an arc array, the needle tip at the middle position of the needle tip array is located at the lowest point, and the needle tips of the two sides of the needle tip array are symmetrically distributed; the air cover is provided with two air inlets and connected with an air supply device through an air guide pipe, and a pressure adjustment valve is used for controlling flow of air and magnitude of pressure intensity. Sheath air constraint is introduced, spinning jet injection is accelerated, the fiber spraying efficiency is improved, the jet flow is thinned, the diameter of a nano fiber is reduced, and the film formation uniformity and quality of an electrostatic spinning fiber are improved.

The embodiment of the invention provides a floatable positioning tool for a welding support of a heliostat support main beam. The floatable positioning tool comprises a base, a welding support positioning die, a linear guide rail and an air cylinder; the welding support positioning die comprises a positioning bottom plate, a first positioning column, a second positioning column, a third positioning column, a fourth positioning column, a first positioning column mounting base and a second positioning column mounting base; the first positioning column mounting base comprises a first mounting bottom plate, a first longitudinal plate, a top plate, a vertical plate and two first fixed blocks; the second positioning column mounting base comprises a second mounting bottom plate, a second longitudinal plate and two second fixed blocks; a sliding block is slidably connected with the linear guide rail; the linear guide rail is mounted on a mounting plate; and the air cylinder is mounted at the lower end of the mounting plate. The positioning precision of a push rod support weldment, a main beam support weldment and a main beam steel pipe during welding is guaranteed, quick positioning and assembling of a workpiece before welding and quick disengaging of a positioning die after welding can be achieved, the welding positioning time and the positioning labor amount are greatly reduced, andthe manufacturing and production period is shortened.

The invention discloses a trailer assembly system which comprises horizontal linear guide rail parts (1), vehicle frame supporting parts (2), suspension supporting parts (3), axle supporting parts (4), wheel supporting parts (5) and an electronic control device. The horizontal linear guide rail parts at least comprise vehicle frame mounting guide rails (11), axle mounting guide rails (12) and wheel mounting guide rails (13) which are arranged in a left-right symmetry mode; the bottoms of the vehicle frame supporting parts, the bottoms of the suspension supporting parts, the bottoms of the axle supporting parts and the bottoms of the wheel supporting parts comprise supporting rollers and roller positioning mechanisms correspondingly, and the supporting rollers are arranged to roll in the front-rear direction; and the vehicle frame supporting parts, the suspension supporting parts, the axle supporting parts and the wheel supporting parts are provided with up-down telescopic mechanisms arranged in the up-down direction and workpiece supporting surfaces located at the telescopic ends of the up-down telescopic mechanisms correspondingly. According to the trailer assembly system, overall quick positioning and assembling of a trailer can be achieved, the assembling efficiency is high, and the safety hidden trouble of hoisting and swinging mounting can be avoided.

The invention relates to the technical field of alloy steel processing, in particular to a high-strength low-alloy steel forming device. The high-strength low-alloy steel forming device includes a base, supporting columns and a top seat; the supporting column is welded between the base and the top seat; the upper wall of the top seat is installed with an electric control box; the outer wall of thesupporting column is installed with a control panel; a pressure seat is movably arranged under the top seat through a hydraulic cylinder; the pressure seat is slidably arranged between the supportingcolumns on both sides through two sets of guide blocks; the upper wall of the base is welded with a fixing seat in a cavity structure; an installation cavity is opened between the fixing seat and thebase; a fixing groove is opened in the middle of the upper surface of the fixing seat; and a movable pin is slidably arranged on the inner side of the installation cavity. Compared with the prior art, the invention not only facilitates rapid positioning and assembly of the forming mold, but also improves the automation degree of the high-strength low-alloy steel forming device.

The invention discloses a wind power flange connecting structure. The wind power flange connecting structure which comprises a first flange and a second flange and is characterized in that a plurality of inserting blocks and a plurality of inserting grooves are formed in the opposite end faces of the first flange and the second flange correspondingly, the inserting blocks correspond to the inserting grooves one to one, the inserting blocks are just inserted into the inserting grooves, a threaded hole in communication with the inserting grooves is formed in the side wall of the second flange, a locking bolt is arranged in the threaded hole, and a positioning hole allowing the locking bolt to penetrate through is formed in the inserting block. According to the wind power flange connecting structure, rapid positioning and assembling of the flanges are achieved through the inserting grooves and the inserting blocks, dislocation is prevented, then locking is conducted through bolts, flange separation is avoided, disassembling and assembling are convenient and efficient, and the assembling effect is better.

The invention discloses a winged soft tissue girdling knife for dental implant surgery, which comprises a positioning guide plate, a cutting channel is arranged on the positioning guide plate, a sleeve is arranged at the top of the cutting channel, a limiting baffle is arranged in the sleeve, a through hole coaxial with the sleeve is formed in the limiting baffle, a connecting rod in clearance fit with the through hole is arranged in the through hole, and the connecting rod is arranged in the through hole. The top end of the connecting rod is located above the limiting baffle and fixedly connected with a pressing base, the bottom end of the connecting rod penetrates through the through hole and is detachably connected with an annular cutter matched with the covering screw, the portion, between the pressing base and the limiting baffle, of the connecting rod is sleeved with a spring, and a plurality of protruding blades evenly distributed around the center of the cutter are arranged at the bottom of the outer wall of the cutter. The center of the inner bottom of the cutter is further connected with an extraction hook. The positioning device is manufactured through CBCT and oral scanning data, a covering screw is accurately positioned, and a cutting extraction device is matched, so that operation is more convenient, postoperative adverse reactions of a patient are relieved, the infection risk is reduced, and wound healing is better.

The invention provides an electric shaver which comprises a main body assembly and a head cover assembly, wherein the main body assembly comprises a lower shell and a driving unit arranged in the lower shell, the head cover assembly comprises a movable knife unit and an upper shell used for supporting the movable knife unit, a driving magnetic assembly is embedded in the lower shell, and a drivenmagnetic assembly is embedded in the upper shell; when the electric shaver is in a static and longitudinally-placed state, the magnetism, corresponding to the longitudinal direction, of the driving magnetic assembly and the magnetism, corresponding to the longitudinal direction, of the driven magnetic assembly are in an unlike attraction state, the driving unit comprises a motor, and the movable shaver unit is driven to rotate under the action of the motor, the driving magnetic assembly and the driven magnetic assembly; and the central axis of the driving magnetic assembly and the central axisof the driven magnetic assembly coincide with the central axis of the electric shaver, and the central axis of the motor deviates from the central axis of the electric shaver by 4-8 cm. The motor deviates from the central axis of the electric shaver, and the influence of vibration generated by rotation of the motor on the magnet is minimum.

The invention relates to the technical field of material manufacturing, and provides a composite material extrusion die pressing device, which is reasonable in structural design, easy to operate and capable of simultaneously extruding two materials for compounding, the composite material extrusion die pressing device comprises a barrel, a first discharging hopper communicated with the interior is arranged at the upper end of the barrel, and a spiral material pushing rod used for pushing out the materials is arranged in the barrel; two charging drums used for pushing materials are detachably arranged in the barrel, a second discharging hopper communicated with the interiors of the charging drums is arranged at the upper ends of the charging drums, the second discharging hopper is arranged in the first discharging hopper, and a discharging pipe communicated with the interiors of the charging drums is arranged at the right end of each charging drum; the right end part of the barrel is provided with two discharge ports for the discharging pipes of the two groups of charging drums to pass through, the right end part of the barrel is provided with a die head assembly for compounding two materials together, and the left end part of the barrel is provided with a driving structure for driving the spiral material pushing rod to rotate.