Floating type rotating grinding main shaft mechanism and grinding method

Abstract

The invention discloses a floating type rotating grinding main shaft mechanism and grinding method. The mechanism comprises a base, a hinge support, a grinding tool, a main shaft motor, a main shaft support and a floating air cylinder assembly, wherein the floating air cylinder assembly comprises an air cylinder base, a floating air cylinder and a Y-type joint, and the grinding tool is rotatably connected with the main shaft motor. When the mechanism works, air is sealed in the floating air cylinder through an electromagnetic valve, a piston of the air cylinder can be adjusted at will through a pneumatic element, when a workpiece makes contact with the grinding tool from top to bottom or from bottom to top, the workpiece is supported by the hinge support, air on one side of the piston of the floating air cylinder is compressed to generate elastic resistance, flexible contact between the workpiece and the grinding tool can be achieved, and the grinding tool is prevented from being damaged. Meanwhile, the floating air cylinder is adopted to conduct flexible adjustment, movement damping can be increased, vibration is reduced, and the mechanism is suitable for being applied to the field of grinding and finishing an automatic casting with a robot, and can precisely control loads and impact resistance of the robot in the working process.

Description

technical field [0001] The invention relates to a floating grinding tool used in casting fields such as cast iron or aluminum castings for cleaning burrs of castings, surface sand cleaning and surface finishing, and in particular to a floating rotary grinding main shaft mechanism and a grinding method. Background technique [0002] Due to the multi-curved surface, complex and diverse shapes of castings, it has brought great difficulties to the automatic production of castings. At present, in many links such as casting cleaning and finishing, it is basically still in the state of manual operation or a small part of semi-automatic operation. The larger plane of the casting surface is processed by a four-sided grinder, but for the smaller curved surface or concave-convex surface, only tools such as angle grinder and air hammer can be used for manual cleaning. The work efficiency is low, the labor cost is high, and the quality is difficult to guarantee. . [0003] There are al...

AI Technical Summary

Problems solved by technology

[0004] 1. It is very difficult to debug the robot, and it is impossible to predict the contact pressure between the tool and the workpiece;

[0005] 2. When the robot grabbing tool is in contact with the workpiece, it is a rigid contact, which cannot realize automatic flexible processing;

[0006] 3. The feeding amount of the robot is difficult to control and cannot achieve the best work efficiency;

[0007] 4. The joints of the robot are vulnerable to impact and overload. Once the robot is overloaded, it will cause damage to the robot

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