Do you know what methods are available for thread cutting of electronic cigarette accessories?

In actual processing, the thread types of electronic cigarette accessories generally include: ordinary single thread thread , trapezoidal thread, special thread, special-shaped thread, etc. Among them, ordinary threads are widely used, and coarse teeth are used for connection, while fine threads are used for the connection of thin-walled parts or parts subject to variable loads, vibrations and shock loads, and can also be used for mechanism fine-tuning. When machining ordinary threads, it should be noted that multiple cycle feeds are required during cutting, and the depth of cut should be decreased according to a certain proportion each time. If the cutting depth of each tool is the same, the force on the cutting edges on both sides of the thread turning tool will increase sharply with the increase of the material removal rate, resulting in decreased thread accuracy and tool damage. In the competition, the internal thread and the external thread are relatively common, and the processing difficulty is generally small, and the main attention is paid to the calculation of the thread bottom.

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The trapezoidal thread has a longer length, larger pitch, deeper cutting depth and greater cutting force than ordinary threads. Moreover, the precision requirements are higher, and the processing is difficult. CNC lathe thread cutting electronic cigarette accessories processing methods generally include: straight method, oblique method, staggered cutting method, grooving rough cutting method.

(1) Straight forward method. It means that when the lathe is cutting, the Z direction does not change the linear motion, and the X direction feeds a cutting depth in stages. It is characterized by convenience, quickness and high efficiency. Usually, ordinary threads with smaller pitches can be used. However, because the two edges of the turning tool are cut at the same time, and the chip removal is not smooth and the force is large, the turning tool is easy to wear, and the chips will scratch the thread surface.

(2) Oblique method. It refers to the Z-direction feed and the X-direction is also linked, forming a diagonal feed method. At this time, only one cutting edge of the thread turning tool always participates in cutting, the chip removal is relatively smooth, and the force and heat generation are smaller than those of the straight-forward method. However, when the thread depth is deep and the pitch is large, it is easy to cause the phenomenon of knife sticking.

(3) Staggered cutting method. The thread turning tool is staggered and fed along the direction parallel to the left and right tooth profiles, respectively, until the tooth bottom. Great for thread cutting of large threads, but complicated to program.

(4) Grooving rough cutting method. Roughly cut a groove with a grooving tool smaller than the width of the thread turning tool head, and then use the thread turning tool for threading. Large-pitch threads are often used, but are extremely cumbersome to operate and program.