2results about How to "Simple programming" patented technology

The application belongs to the technical field of mechanical automation equipment, and is especially a chuck tightening machine, which comprises a tightening machine body and an electric foot switch. The inside of the tightening machine body is provided with a pneumatic main shaft clamp seat and a stepping motor located at one side of the pneumatic main shaft clamp seat. The product chuck is driven to rotate through the stepping motor, and quick clamping is realized in combination with the clamp seat cylinder. The operation is matched with the electric foot switch, so that the production operation efficiency is significantly improved, the labor intensity and labor cost are reduced, the tightening machine body is divided into two layers through a partition plate, the electrical and mechanical parts are isolated, the layout is compact, the structure is simple, the assembly is fast, the maintenance is convenient, the energy consumption is small, and the machine is suitable for small-area platforms. The machine is adapted to switching of multiple types of products by replacing the product chuck, has functions of forward and reverse rotation and number of turns adjustment, has simple program setting, can accurately control the product tightening force through speed adjustment, effectively improves the product processing quality and consistency, and can optimize the process of some products and reduce the use of strong thread glue.

The application belongs to the field of underground space engineering, and provides a Timoshenko beam shear stiffness correction method based on tunnel joint misalignment calculation, which comprises the following steps: establishing a Timoshenko beam high-order differential equation considering shear stiffness correction, establishing a boundary differential equation based on foundation stiffness difference, establishing a Timoshenko beam joint shear stiffness correction model, assembling an overall stiffness matrix and solving, and realizing the calculation of the tunnel joint misalignment amount; the application establishes a Timoshenko beam model based on joint shear stiffness correction, realizes the prediction calculation of the tunnel joint, and can establish a basis for the related work of design units and construction units; in the model, the bending stiffness and shear stiffness can be adjusted, and the accuracy of the model calculation is improved.