Numerical control large-diameter deep hole semi-fine boring head device

Abstract

The invention relates to the technical field of deep hole machine tools, in particular to a numerical control large-diameter deep hole semi-fine boring head device. The semi-fine boring head device comprises a boring head body, a cutter body, a supporting strip compensation structure and a cutter body compensation structure, wherein the supporting strip compensation structure comprises a fixed piston, a driving part and a moving body, the fixed piston is fixed to the boring head body, the driving part can move in the axial direction of the boring head body, a supporting strip is installed on the moving body, and the moving body is movably supported on the boring head body; the driving part and the moving body are provided with conical surfaces which are matched with each other; and the cutter body compensation structure comprises a driving mechanism and a taper mandrel, a conical surface is arranged at one end of the taper mandrel, the cutter body can abut against the conical surface, and the taper mandrel axially moves to push the cutter body to move in the radial direction of the boring head body. According to the embodiment , the supporting strip and the cutter body can compensate the abrasion loss in the radial size, the consistency of front and back machining sizes of a workpiece is ensured, consumables for replacing the supporting strips are omitted, the machining size is stable, and deep hole machining of the inner hole size of phi 800-phi 1900 mm is smoothly carried out.

Description

technical field [0001] The invention relates to the technical field of deep-hole machine tools, in particular to a numerically controlled large-diameter deep-hole semi-finish boring head device. Background technique [0002] At present, the existing technology is a deep hole machine tool. In order to process deep hole processing with an inner hole size of φ800 ~ φ1900mm, the processing length of the workpiece can reach 16 meters. The existing large hole boring tool structure cannot meet the processing requirements, and a set of special CNC is required. Large diameter deep hole semi-finishing boring head device. [0003] The existing large hole boring tool structure is relatively old, such as figure 1 As shown, the boring tool body 1 is installed on the deep hole processing machine tool through threads, and the support bar is installed in the support groove. During the processing, the wear of the blade will reduce the processing size of the inner hole, resulting in the chang...

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Problems solved by technology

[0002] At present, the existing technology is a deep hole machine tool. In order to process deep hole processing with an inner hole size of φ800 ~ φ1900mm, the processing length of the workpiece can reach 16 meters. The existing large hole boring tool structure cannot meet the processing requirements, and a set of special CNC is required. Large diameter deep hole semi-fine boring head device

[0003] The existing large hole boring tool structure is relatively old, such as figure 1 As shown, the boring tool body 1 is installed on the deep hole processing machine tool through threads, and the support bar is installed in the support groove. During the processing, the wear of the blade will reduce the processing size of the inner hole, resulting in the change of the workpiece size, which cannot reach the user. requirements, it is impossible to compensate for the wear of the support bar, so that the inner hole size is inconsistent with the inlet and outlet

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