Floating belt grinding device with feed back and adjustable pressure

Abstract

The invention provides a pressure-adjustable floating abrasive belt grinding device with a feedback. The upper part of a supporting plate is provided with a driving wheel and a cylinder; the piston rod of the cylinder faces downwards vertically and is connected with a fine-adjustment sliding plate by a guide column; the bottom end of the fine-adjustment sliding plate is provided with a contact wheel which is connected with the driving wheel by an abrasive belt which coils an idler wheel; a guide column is movably sheathed by a spring which is in a normal-compression state; the position of the upper end of the spring is limited by a nut which is fixed on a guide column; the position of the lower end of the spring is limited by a baffle which is fixed on the supporting plate; furthermore, the guide column passes through the baffle. The grinding device eliminates the effects of the self-gravity of the grinding head during the grinding process by an added spring mechanism, controls the grinding pressure of the contact wheel within an allowable error range, keeps constant pressure, thus effectively improving the processing precision of complex curved surfaces such as steam engine vanes; furthermore, the grinding device ensures the quality of the profile of the workpiece, and has the advantages of smart concept, simple structure, easy execution, low reconstruction cost, good consistency of product, wide applicable range, and the like.

Description

technical field [0001] The invention relates to a pin grinding device, in particular to a pressure-adjustable floating abrasive belt grinding device with feedback, which is suitable for grinding parts with complex curved surfaces. Background technique [0002] The grinding technology of complex curved surfaces has always been a difficult problem in the grinding industry. The traditional technological process is generally forging, turning, and manual grinding, which is inefficient. In the automatic grinding industry, the automatic grinding machine of the German IBS company is more advanced. It adopts the principle of cylinder pressure floating. Composition, wherein a drive motor is installed on the support plate, the drive wheel is set on the output shaft of the drive motor, the drive wheel is connected with the contact wheel on the fine-tuning slide plate through the abrasive belt, and the abrasive belt bypasses the idler wheel. The fine-tuning sliding plate is fixed to th...

AI Technical Summary

Problems solved by technology

[0003] 1. Due to the large overall mass and large moment of inertia of the grinding head, it has a great impact on the quality of grinding, and its cutting force is not included in the entire grinding system, which cannot accurately reflect the change of grinding pressure. Constant pressure floating cannot be achieved, resulting in poor machining accuracy and difficult to guarantee the quality of the profile

[0004] 2. The abrasive belt between the contact wheel and the idler wheel is arranged obliquely, so that the tension of the abrasive belt to the contact wheel is an oblique tension, which is difficult to balance, which will have a large impact on the grinding process, thereby reducing the grinding Processing precision

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