Automatic nut fastening machine interacting with robot and method for loading or unloading nuts thereon

Abstract

The invention discloses an automatic nut fastening machine interacting with a robot. The automatic nut fastening machine mainly comprises a worktable, a pneumatic clamping jaw, a clamping jaw bracket,a nut fastening mechanism, a Y-axis guide rod, a Y-axis electric cylinder and a control system; the nut fastening mechanism comprises a servo motor, a reducer, an encoder, and a nut mounting mould; when the robot clamps a workpiece to the clamping position of the pneumatic clamping jaw, the control system controls the pneumatic clamping jaw to open, clamp and fix the workpiece; the control systemcontrols the nut fastening mechanism to perform parallel movements of rotation and upward movement, wherein the servo motor performs a positive rotation or a counter rotation, and the Y-axis electriccylinder performs an upward movement or a downward movement, so that the nut tightening or loosening action is achieved. With the adoption of the automatic nut fastening machine, the constant value preloading of the nut can be realized, the consistency of the test body of a post-tension test is ensured, the stability of the tension test results is improved greatly, and the work efficiency is improved through the overall control of the control system.

Description

technical field [0001] The invention relates to the technical field of mechanical equipment, and more particularly relates to an automatic nut screwing machine interacting with a robot and a method for loading or unloading nuts. Background technique [0002] As a key workpiece, resale products are widely used in port machinery products such as spreaders, spreader racks and super-elevated racks, and are the main connecting force-bearing structures. Usually, according to the requirements of the stress situation, the requirements for the surface processing accuracy and heat treatment of the workpiece are relatively high, so as to ensure that the workpiece is evenly stressed, increase its tensile strength and torque resistance, and at the same time, the appearance of the workpiece needs to be formed. beautiful. [0003] At present, the whole line of the reselling workstation is fully automated, and the mechanical test of the reselling workpiece has become a key process. An auto...

AI Technical Summary

Problems solved by technology

[0006] None of the existing technologies including the above-mentioned patent documents can meet the needs of the full-line automatic operation of the resale workstation. This application proposes a new structure, new process, an automatic nut screwing machine that interacts with robots and its nut loading or unloading method.

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