4results about How to "Guaranteed arc" patented technology

The invention discloses a portable cable bending machine which is characterized in that a bending wheel die is provided with an arc-shaped die groove with a rotating shaft as the center, a clamp is installed on the bending wheel die and located at one end of the arc-shaped die groove, a rotating stand is rotatably installed on the bending wheel die, and a shaping die is installed on the rotating stand; the first driving mechanism drives the rotating frame to rotate around the rotating shaft so as to drive the shaping mold to rotate around the bending wheel mold, and the cable is bent through cooperation of the positioning mold groove and the arc-shaped mold groove. The portable cable bending machine with the optimized design is light and handy in structure and convenient to move, the bending machine is fixed to the to-be-bent position of a cable through the clamp, the rotating frame drives the shaping mold to rotate, bending of the designated position of the cable is achieved, the bending arc degree of a steel armor is guaranteed, out-of-round is effectively avoided, and the bending quality of the cable is improved. Therefore, the superconducting effect of the bent high-temperature superconducting cable is ensured.

This utility model provides an extrusion forming mechanism for a side wall boss on an electric vehicle frame tube fitting, including a base. A fixing block is fixedly installed at the top of the base. A convex groove is formed on the top of the fixing block. An insert is embedded on one side of the convex groove, and a fixing cylinder is fixedly installed on the other side of the convex groove. An inclined top block is fixedly installed at the bottom of the inside of the fixing cylinder, and an extrusion steel ball is placed at the top of the inclined top block. An extrusion assembly is provided at the top of the inside of the fixing cylinder. When extruding a side wall boss on an electric vehicle frame tube fitting, this extrusion forming mechanism pushes the extrusion steel ball into the inside of the frame tube fitting plug through the extrusion assembly. The extrusion of the steel ball forms a boss on the side wall of the electric vehicle frame tube fitting, ensuring not only the curvature of the boss but also the uniform force on the side wall of the electric vehicle frame tube fitting during the extrusion process, thus ensuring the curvature and quality of the formed boss.

This invention belongs to the field of aerospace structural component manufacturing technology, specifically relating to an arc-shaped cap and its integrated bending forming method and application. The integrated bending forming method includes the following steps: S1, blanking to obtain a cap plate blank or cap frame blank; S2, milling to machine the external dimensions and hole positions before bending, obtaining a flat, non-arc semi-finished product; S3, bending, placing the flat semi-finished product between the punch and die of a bending die, and applying pressure to press it into an arc-shaped part with a predetermined curvature; S4, stress-relieving treatment of the bent arc-shaped part to eliminate its internal residual stress; S5, shaping, bending and shaping again to stabilize its curvature shape, obtaining the final arc-shaped cap product. This invention effectively solves the problem of springback during sheet metal bending by introducing a combination of bending die design, graded pressure control, and stress-relieving and shaping processes, ensuring the accuracy of the final product's curvature and external dimensions.

The utility model relates to a pair of combined glasses, which comprises a pair of main glasses and a pair of auxiliary glasses. The main glasses comprise a main glasses frame and main lenses connected to the main glasses frame, and the main glasses frame comprises a main glasses frame and glasses legs. The auxiliary glasses comprise an auxiliary glasses frame and auxiliary lenses connected to the auxiliary glasses frame. Wherein the auxiliary glasses frame is detachably connected to the inner side of the main glasses frame through a connecting piece, and the connecting piece extends in the direction of increasing the distance between the main glasses frame and the auxiliary glasses frame. The main mirror frame can have a large bending radian, and the wind resistance coefficient is reduced. The distance between the main glasses frame and the auxiliary glasses frame is increased through the connecting piece, so that the auxiliary glasses frame cannot abut against the inner side of the main glasses frame, bending deformation of the auxiliary glasses frame is avoided, in other words, the original radian of the myopic lenses serving as auxiliary lenses in the myopic glasses can be kept, and the imaging effect of the myopic lenses cannot be affected.