Clamping and rotating device and sleeve mounting device

Abstract

The invention relates to a clamping and rotating device. The clamping and rotating device comprises a driving rotary disc, a driven rotary disc and a rotary disc driving part, wherein the driving rotary disc is an annular disc; the driven rotary disc is arranged in the driving rotary disc; the driving rotary disc is coaxial with the driven rotary disc; mounting shafts and limiting parts are respectively arranged on the driving rotary disc and the driven rotary disc; the driving rotary disc is connected with the driven rotary disc through a plurality of cranks; the cranks are symmetrically arranged along the center of the driven rotary disc; one end of each crank is articulated with each mounting shaft; a clamping part is arranged on each crank; the clamping parts of the plurality of cranksare used for forming a clamping space; a guide curved groove is formed in each crank; a limiting part is arranged in each guide curved groove; the rotary disc driving part is capable of driving the driving rotary disc to rotate and drive the clamping parts to move to the center or the periphery of the driven rotary disc. The clamping and rotating device is capable of providing certain pre-tightening force to sleeves in the process of mounting the sleeves, so that the mounting strength of the sleeves can be ensured; meanwhile, the sleeves can be directly driven to rotate, so that the sleeves and steel bars can be mounted and butted; the technical problem that the sleeves are clamped and mounted is solved; the producing and assembling efficiency is improved.

Description

Technical field [0001] The invention belongs to the technical field of steel bar processing, and specifically relates to a clamping rotating device and a sleeve mounting device. Background technique [0002] In the construction industry, in the construction of reinforced concrete structures, when the length of the component exceeds the length of the direct supply of steel, the steel must be extended. There are three connection methods for steel bar joints: binding, welding, and mechanical connection. Among them, the steel bar binding and lap method is time-consuming and labor-intensive, and the steel bar connection has low tensile performance. This connection method cannot be applied to the building facade with high requirements. Although the welding connection method can save steel, improve structural force performance, improve work efficiency, and reduce costs, it is affected by factors such as personnel, temperature, weather, and equipment, and there are some drawbacks in the...

AI Technical Summary

Problems solved by technology

[0004] However, at present, the connection of the sleeve is mostly manually installed, which reduces the production efficiency. Because the installation of the sleeve needs to reach a certain pre-tightening force to ensure the strength of the sleeve installation, and the manual operation requires a special torque wrench. Determination, torque wrench is relatively more complicated to use than ordinary wrench

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