The invention relates to the technical field of
machining, and discloses a small thread
machining method which comprises the following specific steps: step 1, chamfering
machining: segmenting a thread according to the length of the thread, and dividing the thread into a thread machining unit according to the length of 2-3mm; secondly, the outer
diameter of a first unit thread is machined; thirdly, the outer
diameter # imgabs0 # 1 of a second unit is machined; and fourthly, a second unit thread is turned. According to the small thread machining method, a thread is machined in a sectional mode and divided into length units according to the length of 2-3 mm, firstly, a chamfer part is machined so as to prevent the situation that after the outer
diameter of the thread is machined, a turning chamfer is broken due to the fact that a rod is too thin, after the outer diameter of the thread of the first unit is turned, an M1X0.25 thread is directly turned, and after turning is completed, the outer diameter of the thread of the second section is directly turned. The thread turning tool is used for re-picking the machined thread to eliminate
jumping and prevent breakage, then the second section of thread is directly turned, the method can meet the precision requirement, the thread part is smooth and not jammed through inspection, and the production requirement can be met.