Clamping system of movable main spindle box and clamping method

Abstract

The invention relates to a clamping system of a movable main spindle box, in particular to a clamping system of the movable main spindle box for special machine tools for manufacturing thin-long axial parts and a clamping method of the clamping system. The clamping system of the movable main spindle box comprises at least two groups of first clamping oil cylinders which are arranged along the vertical direction of the main spindle box, and at least one pair of second clamping oil cylinders which are arranged along the horizontal direction of the main spindle box, wherein each group of the first clamping oil cylinders comprises at least one pair of clamping oil cylinders; the first clamping oil cylinder and the second clamping oil cylinder are communicated with a high pressure pump station by a first oil inlet / return pipeline and a second oil inlet / return pipeline; and the first oil inlet / return pipeline and the second oil inlet / return pipeline are provided with electromagnetic valve control devices. The clamping method of the clamping system of the movable main spindle box is further provided. According to the clamping device and the clamping method disclosed by the invention, the clamping force along two directions of the main spindle box accurately keeps the locating position of the main spindle box, so that the manufacturing quality and the precision retentivity of parts are improved.

Description

Technical field: [0001] The invention relates to a clamping system of a movable spindle box, in particular to a clamping system and a clamping method of a movable spindle box for a special machine tool for processing slender shaft parts. Background technique: [0002] The processing technology of some slender shaft parts requires that the spindle box of the special machine tool can move along the direction of the bed rail and be accurately positioned at the position required by the processing technology. However, the rigidity of the slender shaft parts is poor. It is very easy to be unstable and deformed. At the same time, the rotation of the spindle chuck of the machine tool will cause the workpiece to vibrate, so that how to accurately maintain the positioning position of the spindle box will not be affected by the cutting force, workpiece gravity, centrifugal force or inertial force. When position changes and vibrations occur, how to ensure machining accuracy has become a...

AI Technical Summary

Problems solved by technology

[0002] The processing technology of some slender shaft parts requires that the spindle box of the special machine tool can move along the direction of the bed rail and be accurately positioned at the position required by the processing technology. However, the rigidity of the slender shaft parts is poor. It is very easy to be unstable and deformed. At the same time, the rotation of the spindle chuck of the machine tool will cause the workpiece to vibrate, so that how to accurately maintain the positioning position of the spindle box will not be affected by the cutting force, workpiece gravity, centrifugal force or inertial force. How to ensure the machining accuracy becomes the key technology of this kind of special machine tool due to position change and vibration

At present, the clamping device is manually clamped by a bolt platen mechanism, which has a low degree of automation, slow speed, high labor intensity, and cannot detect the clamping force. When the load is large, the operation is very inconvenient, which affects the processing quality and accuracy of the parts.

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