30results about How to "Improve profile quality" patented technology

The invention relates to a core mold and a shaping method for a shaping strip annular internal reinforced rib rotary body thin-wall part, wherein a base mold is composed of a base mold main body and a mold withdrawing end; a swallow tail groove and a positioning groove are formed on the base mold main body; a shape mold is wholly of an annular structure; the shape mold is uniformly divided into a plurality of split molds of same shapes; shaping arc grooves for annular internal reinforced ribs are formed on the shaping plane of the split molds; swallow tail tenons matched with the wallow tail groove and the positioning groove are formed on the inner surfaces of the split molds. By adopting the mode of combined core mold, the problem of hard demolding during the shaping process of the rotary body thin-wall part internal reinforced rib is solved. By virtue of the positioning on the base mold swallow tail groove, the movement of the shaping mold is prevented effectively; and the shaping precision of the rotary body thin-wall part internal reinforced rib is improved. The base mold, the shaping mold and the fixing pin of the core mold can be made of different metal materials according to respective strength requirements; only the mold needs to be replaced for rotary body thin-wall pieces of which the inner diameters are the same and the internal reinforcing ribs are different, so that the cost of the mold is reduced greatly.

A control method for heat-insulating layer structural uniformity belongs to the technical field of solid rocket motor heat-insulating layer manufacturing, The method sequentially includes the steps: preparation, evacuation, inflation and exhausting, inflation and rotation. The structural uniformity of the heat-insulating layer can be improved through the above steps. Due to the conversion between the inflation and the exhausting of a rubber air bag and the speed controlling of the inflation and exhausting, uniform bulge of each portion of the rubber air bag can be ensured, and the displacement of a sinker arranged on the upper portion of the rubber air bag can be avoided. After the basic bulge of the rubber air bag, rotation and adjustment are conducted, the influence on the thickness of the heat-insulating layer sinker by the gravity can be solved, and thus the purpose of the complete structure and the uniform thickness of the heat-insulating layer can be achieved. The control method for the heat-insulating layer structural uniformity is applied to products in various models, remarkably improves the profile quality of the heat-insulating layer, solves the quality problem that the thickness of the heat-insulating layer is not uniform, and passes the ground test of motors.

The invention relates to an improved mould for out-of-furnace press forming of an automobile laminated glass. The improved mold comprises a convex mold (6) and a concave mold (20). The mold is characterized in that the concave mold (20) is provided with a side pre-press forming mechanism (21) and a glass following positioning mechanism (22), the side pre-press forming mechanism (21) comprises a side pre-press cylinder (31), a pre-press rotating shaft structure (32) and a concave mold side structure (18), and the glass following positioning mechanism (22) comprises a positioner rotating shaft (24), a positioning servo motor (25), a positioning speed reducer (26), a positioning coupler (27), a transmission gear (28), a rack (29), a positioner bracket (30), a positioning cylinder (33) and a positioning stop (34). Compared with the prior art, the mold has the advantages of meeting the quality and property requirements for the molded surface, goodness of fit, optical properties of glass products with a large spherical surface, a large span, high large arch rise and great side contour curvature change, improving the yield and the like.

The invention relates to the technical field of glass molding, in particular to equipment for bending of a glass panel, and particularly provides a ceramic die for bending molding of the glass panel.The ceramic die comprises a ceramic terrace die and multiple electric heating elements, the ceramic terrace die is provided with side walls and a bottom wall, the electric heating elements are arranged in the bottom wall, the outer surface of the bottom wall is provided with a convex molded surface, a vacuum cavity is formed in the ceramic terrace die, and negative pressure can be generated in thevacuum cavity; at least one partition vacuum mechanism is further additionally arranged in the vacuum cavity, each partition vacuum mechanism is provided with a partition vacuum cavity, and partitionnegative pressure can be generated in the partition vacuum cavities. The ceramic die can meet the requirement of front windshields with HUD areas, installing areas of rainwater sensors or light sensors or other optical elements and installing areas of cameras bending molding, and can lower the glass molded surface fluctuation, and finally, the glass panel with higher-quality molded surfaces is obtained; moreover, the bending molding quality of peripheral sides with higher molding difficulty can be guaranteed.

The invention relates to a front-mounted broadened aluminum profile extruding die. The front-mounted broadened aluminum profile extruding die comprises a round extruding cylinder, a broadening die and a forming die, wherein the broadening die is arranged between the forming die and the round extruding cylinder, and the middle part of a die cavity of the broadening die is narrower than the left and right end parts of the die cavity by 25-40%; an extending angle formed by an upper conical surface of the die cavity and the axis is 18-25 degrees; a pressure relief angle formed by a lower conical surface of the die cavity and the axis is 10-20 degrees. According to the front-mounted broadened aluminum profile extruding die, a flat extruding cylinder is saved, the broadening effect of an ingot blank is good during the extruding, and the quality of a profile is improved; by utilizing the structure, the extrusion force can be reduced, the service life of the die can be prolonged, and the production cost can be lowered.

The invention discloses a process method for reducing the deformation error of the side milling of the impeller blade; firstly, a rough machining allowance is reserved, and then, along the impeller root curve with the reserved excess allowance and another curve opposite to the impeller root Take equal enough points respectively, connect the corresponding points taken on the two curves, use NX secondary development to program to form tool positions and perform rough machining; finally, use conical milling cutter side milling for semi-finishing and finishing Machined to the required size. The side milling process according to the method can effectively control the machining deformation of the impeller blade, reduce the machining error, improve the rigidity of the impeller blade, improve the quality of the blade surface, and improve the processing efficiency. Compared with the traditional method, the error of side milling deformation is effectively reduced.

The invention discloses a forming tool for composite fan blade laying layer units. The forming tool comprises an overlapping platform (1) and overlapping work surfaces (2) arranged on the overlappingplatform (1); the two sides of the overlapping work surfaces (2) are provided with overlapping reference blocks (3) to serve as an overlapping reference; and the overlapping work surfaces (2) and laying layer units in composite fan blade tenons are the same in quantity. By adopting the forming tool, batch forming of the laying layer units can be achieved in advance, meanwhile, during laying layerunit overlapping, it can be achieved that symmetrical concave and convex units are formed at a time on the same forming mold surface, and the profile quality of the units is improved; then, in the composite fan blade overlapping and laying process, the preformed laying layer units serve as an integrated overlapped layer block to be placed on the blade forming tool; and on the premise that the profile precision of the laying layer units is ensured, the operation time for blade laying layer overlapping can be greatly shortened, and the blade production efficiency is improved.

The invention relates to a copper bar roller alignment device for a motor rotor coil edgewise-winding machine, and belongs to the technical field of generator rotor coil edgewise-winding. The copper bar roller alignment device for the motor rotor coil edgewise-winding machine is characterized by comprising a bottom plate, baffle plates, a single support, an integrated support, side pressure plates, positioning plates, support plates, floating pressure blocks and roller rotating shafts, wherein the single support and the integrated support are provided with adjustable notches and the floating pressure blocks which are connected together with the roller rotating shafts, and are fastened on a working platform by bolts; the side pressure plates are fastened on the two sides of each of the single support and the integrated support by the bolts; and the baffle plates, the positioning plates and the support plates are arranged at left and right ends by the bolts. The device has the advantages of saving cost, reducing consumption and widening the working range of the edgewise-winding machine, along with simple structure, high processibility, convenience of manufacture, copper bar stressing uniformity, high profiling quality and the like.

The invention relates to the technical field of glass forming, particularly to glass plate bending equipment and provides a glass plate bending ceramic die. The glass plate bending ceramic die comprises a ceramic terrace die, a cover plate and a plurality of electric heating elements, wherein the ceramic terrace die comprises a side wall and a bottom wall; the glass plate bending ceramic die also comprises at least three hanging devices, the outer surface of the side wall is provided with at least three positioning blind holes, every hanging mechanism comprises a fixing device and an inserting device, the top end of the fixing device is fixedly connected to the lower surface of the cover plate, the outer end of the inserting device is fixed onto the fixing device, and the inner end of the inserting device can be inserted into the corresponding positioning blind hole. The glass plate bending ceramic die can avoid the problems of expansion, breakage and the like in local connected parts during application and reduce fluctuation of low glass profiles to produce finished glass plates with higher profile quality and meanwhile to ensure the bending quality of circumferential edges which are higher in forming difficulty.