Folding microhole bedding face machining reverse scraping tool

Abstract

The invention discloses a folding microhole bedding face machining reverse scraping tool. The folding microhole bedding face machining reverse scraping tool comprises an end cover, a tool apron, a joint and a tool bar; the tool bar is connected with a machine tool spindle, the joint is installed on the tool bar, the lower end of the tool apron is movably installed on the joint, the upper end of the tool apron is movably installed on the end cover, a molding blade is installed on the tool apron, and the tool apron can rotate between the end cover and the joint; and when the end cover, the toolapron and the joint are connected together in sequence, the machine tool spindle rotates to drive the tool bar to rotate correspondingly, and thus the molding blade can be automatically folded and unfolded between the end cover and the joint. According to the folding microhole bedding face machining reverse scraping tool, the tool apron automatic folding and unfolding functions are achieved through the machine tool spindle, manual loading and unloading procedures are omitted, the micro-pore bedding face structure machining process is simplified, labor is relieved, and the machining efficiencyis improved.

Description

technical field [0001] The invention relates to a foldable small hole large noodle machine plus a reverse scraper. Background technique [0002] At present, when the construction machinery industry processes the large surface on the back of the small hole, such as figure 1 As shown, it includes the inner end face 1 and the hole 2, and a large number of white steel cutters are used for back scraping; due to the limitation of the cutting width of the back milling cutter, high-speed back milling cannot be performed. There are also some manufacturers who manufacture extra-large milling cutters to mill the back of the small hole from the side of the hole to solve the problems of low surface quality when using white steel knives on the back of the small hole, the shape and position tolerance cannot be guaranteed, and the sharpening of white steel knives is difficult. However, the tool cost of the extra-large cutter head is expensive, and the number of blades that need to be insta...

AI Technical Summary

Problems solved by technology

[0007] 1) Due to the anti-scraping method of the white steel knife, when the knife rod advances and retreats, the white steel knife needs to be manually loaded and unloaded repeatedly, which makes the process cumbersome

[0008] 2) Due to the manual sharpening of the white steel blade, the sharpening quality is greatly affected by external factors, and the straightness of the blade directly affects the surface roughness quality and flatness of the anti-scratch large surface

At present, the surface roughness of the workpiece processed by white steel knife back scraping should only reach Ra25. In addition, the surface flatness of the workpiece after processing is out of tolerance and has a tapered structure. Both of them cannot meet the accuracy requirements of the design documents.

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