The thread is formed on the surface of the cylindrical workpiece along the spiral line, and has continuous protrusions and grooves with the same cross section. In machinery manufacturing, threaded parts are widely used. Machining threads with turning is a commonly used method. Four standard threads can be turned on a horizontal lathe (such as CA6140): metric, inch, modulus, and diameter control. No matter which thread is turned, the strict movement relationship between the lathe spindle and the tool must be maintained: that is, each revolution of the spindle With one revolution (ie, the workpiece rotates one revolution), the turning tool should move evenly by a lead distance (of the workpiece). Their movement relationship is ensured as follows: the spindle rotates with the workpiece, and the movement of the spindle is transmitted to the feed box via the hanging wheel; after the gear box is changed in speed (mainly to obtain various pitches), it is transmitted to the screw; The screw and the opening and closing nut on the slide box cooperate to drive the tool holder to move linearly, so that the rotation of the workpiece and the movement of the tool are realized by the driving of the spindle, thereby ensuring the strict movement relationship between the workpiece and the tool . When actually turning the thread, due to various reasons, the movement from the spindle to the tool causes a problem in a certain link, which causes a problem when turning the thread and affects normal production. It should be resolved in time.
