Feeding conveyer for machining of large workpiece

Abstract

The invention discloses a feeding conveyer for the machining of a large workpiece, which comprises a track and a driving vehicle, wherein the driving vehicle is used for bearing and driving the workpiece to move along the track and is arranged on the track by moving to and fro along the track. The feeding conveyer for the machining of the large workpiece has no relative sliding between the workpiece and the driving vehicle and can not cause damage to the surface of the workpiece by conveying the workpiece through the driving vehicle moving along the track, and also has a high feeding precision and a simple structure, has no complex transmission mechanism, has a few vulnerable components, a low failure rate during running and a low manufacturing cost and is convenient to maintain; non-powered roll tables on two sides of the driving vehicle make the workpiece be more stable in the running process and overcome the defect of inconsistent linear speed of live rollers on a powered roll table; the non-powered roll tables and the workpiece have no relative sliding therebetween, so no damage on the workpiece can be caused; the positive pressure between the workpiece and the driving vehicle, and between the workpiece and the roll tables can be regulated by regulating the height of the non-powered roll tables, so that the driving vehicle can work under the optimal working condition, the sliding of the workpiece is avoided and the stable feeding is ensured.

Description

technical field [0001] The invention relates to a conveying device, in particular to a feeding and conveying device for a large workpiece during processing. Background technique [0002] In the process of modern industrial processing and manufacturing, especially the dynamic assembly process of large-scale mechanical products, it is often necessary to use the movement of the conveyor to transport large workpieces as a feed movement. In this case, the conveyor becomes an important part of the machine tool , which becomes the feed mechanism of the machine tool. To achieve the processing quality required by the product, the running straightness and stability of the conveyor should meet the needs of mechanical processing, otherwise, the processed product will not meet the quality requirements, and it should also have reliable operation, low failure rate, Small manufacturing cost and other characteristics to enhance its market competitive advantage. [0003] There are two types...

AI Technical Summary

Problems solved by technology

However, there are many hinge points in the chain conveyor, and it is easy to form a large cumulative error. Therefore, the machining accuracy of the chain link components must be improved, which will increase the manufacturing cost. At the same time, the hinge joints are easy to wear, which affects the reliability of use. Many small roller bearings make maintenance difficult

[0004] The problem with the power roller conveyor as a feeding and conveying device for mechanical processing is that the workpiece and the roller table are rolling relative to each other. Due to the small rolling friction force, the workpiece is equivalent to floating on the roller, but in the feeding and conveying flow water of large workpieces , it is often necessary to use two rows of rollers, the linear speed of the two rows of rollers may not be consistent due to the error of processing and installation, so it is difficult to meet the requirements of straightness and stability

In addition, because the power roller table itself is driven by several motors independently or in groups, the linear speed at which the power roller table touches the workpiece surface cannot be completely consistent, that is to say, each power roller table cannot be completely consistent with the running speed of the workpiece. There is a speed difference between the workpiece and the power roller table, which will inevitably lead to wear on the surface of the workpiece. This has no effect in the metal rough machining stage, but for workpieces with high surface quality requirements, the power roller table will inevitably damage the surface of the workpiece as a feeding device. This is not allowed for post-finishing of metal workpieces

Images