Machining process of grinding machine grinding rod with external thread taper shank

Abstract

The invention discloses a machining process of a grinding machine grinding rod with an external thread taper shank. The machining process comprises the steps of conducting rough machining on a solid raw material to form a rough blank with preset dimensions; conducting semi-finish machining on the rough blank to form a semi-finished blank with the preset dimensions; clamping a check rod to a rotaryworkbench of a grinding machine, driving the rotary workbench to horizontally rotate by half of alpha and conducting accurate grinding machining on the outer conical surface of the shank of the checkrod; checking the runout of the head of the check rod and slightly adjusting the rotating angle of the rotary workbench according to the runout of the head of the check rod and conducting accurate grinding on the outer conical surface of the shank of the check rod again until the runout of the head of the check rod meets the requirement for the preset tolerance; and dismantling the check rod, fixing the rotary workbench to the position at the current rotating angle, conducting finish machining on the semi-finished blank, clamping the semi-finished blank to the rotary workbench and conductingaccurate grinding machining on the outer conical surface of the shank of the check rod. Through the machining process, the machining precision of the taper shank of the grinding rod can be improved, dynamic balance of the grinding rod in the machining process is ensured, and the machining quality and qualified rate of the grinding rod are improved.

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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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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