Electromagnetic drive servo bending machine with cycloidal pin wheel transmission mode

Abstract

A cycloid cam transmission type solenoid drive servo bending machine comprises two symmetrical servo motors, the servo motors are connected with a cycloid cam transmission part through belt transmission, the lower portion of the cycloid cam transmission part is connected with a planet pin roller lead screw, the upper portion of the planet pin roller lead screw is fixed in a transmission cylinder through a thrust bearing and an end cover, the transmission cylinder is installed in a bending machine body, the lower portion of the planet pin roller lead screw is connected with a planet pin roller lead screw nut installed on a sliding block, and the sliding block is driven by the planet pin roller lead screw to do reciprocating movement and finish the bending work. The cycloid cam transmission type solenoid drive servo bending machine has the advantages of being high in bearing capacity and movement precision, small in transmission mechanism size and the like.

Description

technical field [0001] The invention belongs to the technical field of bending machine manufacturing, and in particular relates to an electromagnetically driven servo bending machine in a cycloidal pin wheel transmission mode. Background technique [0002] A bending machine is a machine capable of bending thin plates, which uses a simple die to press the metal sheet into the required geometric shape. The working principle of the bending machine is to fix the upper and lower molds to the upper and lower worktables of the folding bed respectively, and use the transmission system to drive the relative movement of the worktables, combined with the shape of the upper and lower molds, so as to realize the bending and forming of the plate. [0003] The bending machine can be mainly divided into three categories: manual bending machine, hydraulic bending machine and CNC bending machine. The manual bending machine has low precision, low degree of automation, and poor control perform...

AI Technical Summary

Problems solved by technology

Because there is no reducer, the selected AC servo motor has large specifications, large size and high cost

In addition, the transmission method of the ball screw is point contact between the ball and the nut and the screw, so the bearing capacity is small, resulting in a large size of the selected ball screw and high cost, which makes the ball screw with large specifications and high nominal pressure. cannot be used on the bending machine

This kind of AC servo motor driven by the ball screw cannot meet the requirements of large-sized, high-nominal pressure bending machines

These bending machines usually adopt ordinary gear reduction system, resulting in large size and heavy weight of the transmission part

In addition, the servo control performance of these bending machines is poor, the assembly is complicated, it is not easy to disassemble, and the degree of modularization is low

[0005] When the ordinary gear reduction method is adopted (the first-stage gear reduction ratio is at most 7 to 9), some bending machines require multi-stage gear transmission, so the deceleration gear transmission system is bulky, heavy, large in inertia, and poor in action sensitivity. High cost, large-sized gear cutting and processing costs are high, multi-stage gear transmission efficiency is low, material consumption is large, energy waste is large, and it is not conducive to assembly and transportation, etc.

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