Thermal-elongation non-contact measuring mechanism of double grinding heads of guiding rail forming grinding machine

Abstract

The invention discloses a thermal-elongation non-contact measuring mechanism of double grinding heads of a guiding rail forming grinding machine, which comprises an X-direction dragging plate, a Z-direction dragging plate and a non-contact laser displacement sensor. After the X-direction dragging plate is matched with the Z-direction dragging plate, two X-direction dragging plate guiding grooves on the X-direction dragging plate are matched with X-direction guide rails of two grinding heads; a dragging plate nut base on the X-direction dragging plate is matched with an X-direction lead screw of the measuring mechanism between the double grinding heads of the guiding rail forming grinding machine so that the whole thermal elongation non-contact measuring mechanism is arranged between the double grinding heads of the guiding rail forming grinding machine, and the mounted non-contact laser displacement sensor is arranged on the upper surface of a sand wheel. Through additionally providing an addition structure, the invention can effectively realize thermal-elongation non-contact measurement under the condition of no influencing a portal frame of the grinding machine and the main structures of the grinding heads. With good stability of the mechanism, simplicity and convenience for operation and high measurement accuracy, the invention effectively improves the symmetry of two sidesand the accuracy in the guide rail forming grinding, and improving the performance of the guide rail.

Description

technical field [0001] The invention relates to the forming grinding processing technology, in particular to a non-contact measuring mechanism for thermal elongation of double grinding heads of a guide rail forming grinder. Background technique [0002] The precision curved linear rolling guideway is the key component of the current precision CNC machining equipment, which has an important impact on the overall accuracy of the machine tool and the stability of the machining process. The finishing process of precision curved guide rails is generally completed on guide rail forming grinders. The grinding of the forming surface of the guide rail involves multiple surfaces, and the machining of the two sides of the guide rail generally uses two vertical grinding heads with a forming grinding wheel for symmetrical grinding. [0003] At the beginning of the grinding process, the left and right grinding heads are at the same height to ensure the symmetry of the side shape of the g...

AI Technical Summary

Problems solved by technology

On the one hand, since the thermal elongation is finally reflected in the level of the grinding wheel, and the grinding wheel is in continuous operation during the grinding process, it is difficult to apply the traditional contact measurement method effectively; on the other hand, the impurities in the grinding process and coolant will greatly affect the accuracy of contact measurement and cause damage to sensing equipment

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