Large-pore diameter precision boring tool for machining center

Abstract

The invention discloses a large-pore diameter precision boring tool for a machining center. The tool comprises a T-shaped base, an adjustable boring head mechanism provided with a boring cutter, an adjusting screw linked with the adjustable boring head mechanism, and a screw seat provided with the adjusting screw, wherein the T-shaped base consists of a vertical rod part connected with the machining center and a transverse rod part provided with the adjustable boring head mechanism; a guide groove allowing the adjustable boring head mechanism to slide upwards is formed on the transverse rod part; the adjustable boring head mechanism is connected with the transverse rod part through a screw; an adjusting screw rod is inserted into the adjustable boring head mechanism so as to push the mechanism to move back and forth; and the adjusting screw rod passes through the screw seat. The boring tool has the advantages of simple structure and high machining accuracy.

Description

technical field [0001] The invention relates to a large-diameter precision boring tool for a machining center. Background technique [0002] Usually, the machining center processes the inner hole with a large diameter (above φ300mm), and uses the programmed milling method for processing. This processing method has the following disadvantages: [0003] 1) The processing time is relatively long. (low efficiency) [0004] 2) The machining accuracy is low. (processing deviation ≥ 0.05) [0005] 3) The tolerance deviation of the processed inner hole is large. (creates a taper) [0006] 4) The surface roughness is poor, generally it can only reach above Ra6.3. There are vibration marks on the machined surface. [0007] Using the programming milling method to process can only process some through holes and stepped holes with low processing requirements; the inner hole with large diameter requires high precision (small roundness deviation, small tolerance zone) and surface ro...

AI Technical Summary

Problems solved by technology

(low efficiency)

[0004] 2) Low machining accuracy

[0005] 3) The tolerance deviation of the processed inner hole is large

[0006] 4) The surface roughness is poor, generally it can only reach above Ra6.3

(The lathe cannot process multiple holes)

[0011] The finishing of multi-unit large-diameter inner holes has become a major bottleneck in the manufacture of large-scale precision motor core multi-station progressive stamping dies, which seriously hinders the production of large-scale precision motor core multi-station progressive stamping dies

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