Honing reamer

Abstract

The invention discloses a honing reamer, which comprises a circular cutter bar body connected end to end in the axial direction and a circular frame-type honing reamer base provided with a honing bar. One end of the cutter bar body is connected with a machine tool. There is a structure on the flange plate, the base of the reamer and the body of the tool bar to automatically expand or retract the bar in the radial direction; the body of the tool bar has a piezoelectric energy harvester that generates power through vibration, and the tool bar The first center hole on the main body is fixed with a piezoelectric stack that can extend axially when energized. One end of the mandrel is fixed; there is a displacement sensor on the piezoelectric stack; the piezoelectric energy harvester is electrically connected to the piezoelectric stack through a control circuit and a wire provided in the cutter body, and the displacement sensor is electrically connected to the control circuit. The honing reamer can automatically adjust and compensate the radial position of the honing bar in the honing reamer during processing so that the grinding part of the honing bar can always be kept in a grinding state and the machining accuracy can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of precision machining tools, in particular to a honing reamer. Background technique [0002] The honing reamer is widely used in the field of precision machining technology. Since the outer surface of the honing reamer can be coated with a layer of diamond abrasive, it can precisely process high-hardness materials. The reamer honing bar of the existing honing reamer is generally composed of a tool bar body and a mandrel. The mandrel has a certain taper or a tapered surface. By adjusting the axial position of the mandrel, the tool bar body expands, and the tool bar body The diamond abrasive on the surface continuously grinds the hole wall, so that the diameter of the processed hole is continuously enlarged, and the purpose of precision grinding of the hole to be processed is achieved. [0003] However, the prior art adjusts the axial position of the mandrel, even if the structure of its axial movement is ba...

AI Technical Summary

Problems solved by technology

[0003] However, the existing technology for adjusting the axial position of the mandrel, even if the structure of its axial movement is basically a male and female thread connected to the mandrel at the top of the cutter bar, this adjustment structure mainly has three disadvantages in the actual adjustment operation: one is the need for It can only be adjusted when the machine stops working, which affects the continuity of the precision machining process

Second, the adjustment of the mandrel is manually adjusted, which is difficult to guarantee the machining accuracy

The third is that the female thread, that is, the frequent twisting of the nut is easy to wear the male thread of the mandrel, which is not conducive to the long-term use of the tool, that is, it affects the service life of the honing reamer

Images