Cylinder cover positioning and clamping device in the process of finish-milling top surface of cylinder cover

Abstract

The invention discloses a cylinder cover positioning and clamping device in the process of finish-milling the top surface of a cylinder cover, which comprises a clamp seat provided with a three-point positioning support mechanism for positioning the bottom surface of the cylinder cover, and a side clamping mechanism positioned on the clamp seat and on the two sides of the cylinder cover. The three-point positioning support mechanism comprises two front and back cylinder cover air inlet channel boss support points and a support platform positioned in the middle; the two cylinder cover air inlet channel boss support points are respectively sleeved with a centering conical-surface pin; a spring is arranged under the centering conical-surface pin; the centering conical-surface pin is matched with an air inlet passage of the bottom surface of the cylinder cover, so that the two front and back cylinder cover air inlet channel boss support points are always contacted with the central part of the air inlet passage boss; the middle support platform is matched with the bottom platform of the cylinder cover; and the side clamping mechanism comprises a manual clamping jaw positioned on one side of the clamp seat, an oil cylinder positioned on the other side of the clamp seat and a press block which is matched with the middle support platform. The device has the advantages of simple structure, good positioning consistency and reliable clamping.

Description

Technical field [0001] The invention relates to a positioning and clamping device, in particular to a cylinder head positioning and clamping device when the top surface of the cylinder head is precision milled. Background technique [0002] At present, when finishing the top surface of the cylinder head on a special machine tool, when positioning with the cylinder head intake boss (blank surface), because the positioning support points support the rough surface, the rough surface is not very flat, positioning and supporting the boss If the position is different, the final processed size of the airway will be inconsistent. Using two supporting points to support and locate the intake boss, the problem is that when the cylinder head is moved a little bit in the horizontal direction, the contact boss will be different, and the finally obtained air passage size will be inconsistent with each cylinder head. Summary of the invention [0003] In view of the above-mentioned shortcomings o...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a cylinder head positioning device. Through the cooperation of the positioning mechanism and the clamping mechanism, the device solves the problem of changing the positioning point of the boss when different cylinder head blanks are positioned with the intake boss.

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