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

The invention relates to an absorbable bone plate profiling shaping structure and a method thereof, which belong to the technical field of absorbable bone plates. The plate fixing jig includes a plurality of jig joint units connected end to end and a connecting shaft arranged between every two adjacent jig joint units, and every two adjacent jig joint units are hingedly connected by the connecting shaft, and the bone plate fixing jig The body of the absorbable bone plate is relatively fixed on the top, and the frame is fixed with a plurality of driving parts. Each driving part is fixed to one end of the corresponding connecting shaft to drive the connecting shaft to move upward. A heating device is installed inside the connecting shaft, which can A cooling system for cooling is installed on the upper part of the absorbable bone plate to overcome the limitations of the absorbable bone plate in the curved surface environment of the fracture site, greatly reduce or eliminate the internal stress of the absorbable bone plate, and improve the performance of the absorbable bone plate. strength and longevity.

The invention discloses a process for strengthening the milling rigidity of an aluminum-alloy ultrathin-blade integral impeller. The process comprises the following steps: firstly layering the ultrathin blade of the integral impeller; reserving rough machining allowance; and carrying out layered finish machining on the ultrathin blade. According to the invention, resonance of the whole blade is reduced via non-uniform allowance and transition fillets between each layer, so vibration of the ultrathin-blade integral impeller caused by influence of cutting force in cutting can be effectively reduced, the molded surface quality and curved surface precision of the blade milled by a cutter and dimensional stability of the impeller are improved, and cutting efficiency is significantly enhanced.

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 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.

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 present invention relates to double curvature plate cold pressing formation method and apparatus. The formation process includes the following steps: determining the rebound elasticity of cold pressed steel plate, determining the curvature radius and size of upper and lower working plates, setting plate material, cutting, pressing, etc. The formation apparatus includes upper pressing mold, lower pressing mold, reinforcing ribbed plates welded onto the top plate, upper working plate, lower working plate and bottom plate, and oil press. The present invention makes it possible to produce high quality double curvature plate with smooth surface.

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.

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.