Honing reamer

Abstract

The invention discloses a honing reamer which comprises a circular cutter bar body and a circular frame type honing and reaming base, the circular cutter bar body is axially connected end to end, thehoning and reaming base is provided with a honing and reaming strip, one end of the cutter bar body is provided with a flange plate connected with a machine tool, and the honing and reaming base and the cutter bar body are provided with structures enabling the honing and reaming strip to automatically expand or retract in the radial direction; a piezoelectric energy harvester generating power through vibration is arranged on the cutter bar body, a piezoelectric stack capable of axially extending after being electrified is fixed in a first center hole in the cutter bar body, and the outer end of the piezoelectric stack is fixed with one end of a dabber which is used for axially moving and enabling the honing and reaming strip to radially expand or radially retract; a displacement sensor isarranged on the piezoelectric stack; and the piezoelectric energy harvester is electrically connected with the piezoelectric stack through a control circuit and a wire arranged in the cutter bar body,and the displacement sensor is electrically connected with the control circuit. According to the honing reamer, the radial position of the honing and reaming strip in the honing reamer can be automatically adjusted and compensated in the machining process, so that the grinding part of the honing and reaming strip is always kept in a grinding state, and the machining precision 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

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