Drilling machine Z-axis structure and drilling machine

Abstract

The invention discloses a drilling machine Z-axis structure and a drilling machine. The drilling machine Z-axis structure comprises an air floatation guide rail assembly, wherein the air floatation guide rail assembly comprises a guide rail seat, an air floatation shaft sleeve and an end portion fixed seat; the air floatation shaft sleeve is mounted in the guide rail seat; the end portion fixed seat is connected with the guide rail seat and restrains the air floatation shaft sleeve to the guide rail seat; the guide rail seat is in clearance fit with the air floatation shaft sleeve; the guide rail seat and the air floatation shaft sleeve are sealed through elastic sealing rings at the two ends; the guide rail seat is provided with an air hole for introducing external air into a gap between the guide rail seat and the air floatation shaft sleeve; the air floatation shaft sleeve is provided with a throttling air inlet hole; and the end portion fixed seat is provided with a perpendicularity adjusting assembly matched with the air floatation shaft sleeve. Through strict mechanism design, the floating type air floatation shaft sleeve is innovatively adopted in the design of the air floatation guide rail assembly to achieve the purposes of automatically correcting the perpendicularity and manually correcting the perpendicularity through the perpendicularity adjusting assembly, and the ultrahigh frequency machining drilling quality is guaranteed.

Description

technical field [0001] The invention is used in the field of machine tool equipment, in particular relates to an accessory of the machine tool equipment, specifically a Z-axis structure of a drilling machine and the drilling machine. Background technique [0002] With the development of technology, the drilling frequency of PCB drilling machine is getting faster and faster. By 2010, the drilling frequency of drilling machines on the market has reached 400 holes / min, but by 2020, the drilling frequency of drilling machines on the market has exceeded 800 holes / min. Obviously, ultra-high frequency drilling technology has embarked on the "fast track", which greatly improves the efficiency of drilling processing. However, during the drilling process of the traditional PCB drilling machine, the Z-axis structure of the drilling machine includes the base plate, the spindle mounting seat fixed on the base plate, the spindle motor connector and other components that move up and down ...

AI Technical Summary

Problems solved by technology

However, because most of the air-bearing guide rail components are used in the Z-axis structure of the PCB drilling machine, it is difficult to adjust the verticality, which greatly affects the drilling quality of the drilling machine, and even causes the needle to break and the spindle to hit the inner wall of the air-bearing guide rail component.

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