Manufacturing method for pulling boring machine boring rod central frame

Abstract

The invention discloses a manufacturing method for a pulling boring machine boring rod central frame. The manufacturing method comprises the step that a supporting base, a bearing outer sleeve, a bearing adjusting fixing board, a roller bearing, a blanket cushion sealing ring, a bearing inner sleeve, a right adjusting thread fixing board, right adjusting threads, an adjustable taper sleeve, a left adjusting thread fixing board and left adjusting threads are installed according to drawings. The clearance between the frustum-shaped adjustable taper sleeve and a boring rod is proper, wherein the adjustable taper sleeve of the pulling boring machine boring rod central frame is made of nylon materials, vibration is effectively avoided, the quality of a machined hole is ensured, collision is effectively avoided at the same time, and the service life of the boring rod is prolonged; due to the fact that the right adjusting thread fixing board, the right adjusting threads, the left adjusting thread fixing board and the left adjusting threads are arranged, the adjustable taper sleeves of different inner diameters can be replaced conveniently to enable the taper sleeves to be matched with boring rods of different diameters for use, the best using state is achieved, the structure is simple and reasonable, and use is convenient and reliable.

Description

[0001] Technical field [0002] The invention belongs to a manufacturing method of a boring bar support device of a boring deep hole machine tool, and in particular relates to a manufacturing method of a boring bar center frame of a stretch boring machine. [0003] Background technique [0004] The support sleeve of the pulling boring machine cannot be adjusted. During the boring work, the boring bar easily collides with the support sleeve, causing more scratches on the surface of the boring bar, causing serious damage to the boring bar and affecting the service life of the boring bar; Due to the collision and friction of the support sleeve, the gap between the two continues to increase, which causes the vibration of the boring bar to increase, which leads to the center shift, which in turn increases the deviation of the processed hole, affects the processing quality, and the reject rate remains high; In the prior art non-adjustable support sleeve, its collision and friction with t...

AI Technical Summary

Problems solved by technology

[0004] The support sleeve of the boring machine cannot be adjusted. During the boring work, the boring bar is easy to collide with the support sleeve, causing more scratches on the surface of the boring bar, resulting in serious damage to the boring bar and affecting the service life of the boring bar; Due to the collision and friction of the support sleeve, the gap between the two continues to increase, resulting in an increase in the vibration of the boring bar, resulting in a center shift, which in turn increases the deviation of the processed hole, affects the processing quality, and the scrap rate remains high; The non-adjustable support sleeve in the prior art, the collision friction between it and the boring bar not only affects the service life of the boring bar and the quality of the processed hole, but also affects the service life of the support sleeve itself, frequent replacement of the boring bar and the support sleeve, resulting in machining Waste of equipment resources and increase in processing costs

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