A rail transit honeycomb workpiece clamping force adjustable positioning system and milling equipment

Abstract

The invention discloses a positioning system and milling equipment with adjustable clamping force for a rail transit honeycomb workpiece, comprising: a positioning device including a positioning platform to support the workpiece; a clamping device including a turntable fixedly arranged around the positioning platform , the top of the turntable is connected with the mechanical arm, and the end of the mechanical arm is provided with a pressure plate, which can cooperate with the positioning table to clamp the workpiece; there are multiple clamping devices, and the working areas of adjacent clamping devices have intersections. All the clamping devices The working area can cover the processing surface of the workpiece; when processing the intersection area, make the corresponding clamping device clamp the workpiece at the same time; The clamping device clamps the workpiece.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing equipment, and in particular relates to a rail transit honeycomb workpiece clamping force adjustable positioning system and milling equipment. Background technique [0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] Aluminum honeycomb technology was first used in the aerospace industry. With the deepening of reform and opening up, aluminum honeycomb products have been widely used in railway passenger cars due to their light weight and high strength. The aluminum honeycomb panel is composed of upper and lower aluminum plates and an aluminum honeycomb core in the middle. In essence, it is similar to the load transfer mode of the I-beam. The upper and lower panels are equivalent to the flanges of the I-beam, which mainly bear the in-plane tension and compression. Stress and shear str...

AI Technical Summary

Problems solved by technology

As a mass-produced workpiece, the above-mentioned clamping methods have huge labor costs, time-consuming and labor-intensive, and are not suitable for high-efficiency mass production.

Moreover, these clamping methods are prone to form and position errors when processing honeycomb panels, resulting in the accumulation of assembly errors of honeycomb panels that are processed later. In severe cases, it may be caused by unreliable installation, which may cause the bottom plate to be damaged under the impact of huge foreign objects when the rail vehicle is running. fall off, causing damage to the vehicle equipment, therefore, there is a major safety hazard

When milling honeycomb panels, because the control of jet parameters is not considered from the perspective of the special structure of the honeycomb, when the traditional cutting fluid and dry methods are used, more honeycomb core defects are caused, and the T-direction strength of the honeycomb core is reduced. The cushioning performance of the rail vehicle's equipment compartment bottom plate is poor, and it may be damaged in advance under the long-term service of the rail vehicle, causing safety accidents

Coupled with the low rigidity of the honeycomb aluminum alloy, it is easy to deform under the clamping force of positioning installation. The clamping force is too small. Although the clamping deformation is reduced, the positioning installation is not reliable and cannot meet the processing accuracy requirements. Technical difficulties in high-quality processing of large-scale honeycomb aluminum alloys in rail transit such as high-speed rail and subway

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