A grinding rod processing technology with external thread taper shank for grinding machine

Abstract

The invention discloses a grinding rod processing technology with an external thread taper shank for a grinding machine, which includes: taking a solid raw material for rough processing to form a rough blank with a preset size; Semi-finish embryo; clamp the calibration rod to the rotary table of the grinding machine, rotate the rotary table horizontally at an angle of α / 2 along the preset direction, and finely grind the outer cone surface of the handle of the calibration rod; check and verify The runout of the head of the check rod is used to fine-tune the rotation angle of the rotary table, and the outer cone surface of the handle of the check rod is finely ground again until the runout of the head reaches the preset tolerance requirements; after the check rod is disassembled, the The rotary table is fixed at the current rotation angle position, and the semi-finish embryo is finished, and then the semi-fine embryo is clamped on the rotary table, and the outer tapered surface of the shank is finely ground. The invention can improve the processing precision of the taper shank of the grinding rod, ensure the dynamic balance in the processing process of the grinding rod, and improve the qualified rate of the processing quality of the grinding rod.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to a grinding rod processing technology for a grinding machine with an external thread taper shank. Background technique [0002] In the field of mechanical processing, the deep hole parts, such as the piston rod and actuator on the actuator, etc., the depth of the hole is generally above 300-500mm, the size and shape accuracy is about 0.01mm, and the roughness is Ra0. 4. The use of milling cutters or boring cutters can only rough the deep holes of this type of parts. If you want to complete the semi-finishing or finishing of the deep holes of this type of parts, you must do it on an internal and external grinding machine. [0003] Common accessories used on internal and external grinding machine equipment - grinding rod, its material is usually steel 45, which belongs to medium carbon steel, and the hardness value after heat treatment and quenching is generally 38-42...

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Problems solved by technology

Therefore, the pass rate of the program is very low, often less than 2%

Therefore, the pass rate of this program is also very low, often less than 2%.

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