A method for removing incomplete teeth of turning thread
A technology for turning threads and threads, which is applied in the field of ordinary grooving tools to remove incomplete threads, can solve the problems of reducing production efficiency, increasing processes, and incomplete teeth, so as to improve thread accuracy and production efficiency, and improve production efficiency effect
Active Publication Date: 2015-10-28
DONGFANG TURBINE CO LTD
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Problems solved by technology
[0004] At present, the methods of chamfering at the thread inlet, manual removal and milling machine removal are generally used at home and abroad for the removal of incomplete teeth. The thickness of complete teeth cannot completely solve the problem of incomplete teeth, and the manual removal efficiency and machining accuracy are low. The milling machine removal method needs to replace the machine tool, which increases the process and reduces the production efficiency.
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[0032] Such as Figure 3-7 As shown, the present invention is a method for removing incomplete teeth of turning threads, using a numerical control machine tool to turn and process threads on the surface or inner hole of a workpiece, and the incomplete teeth 1 are located at the feed and retract positions during thread turning . The method for removing the incomplete tooth 1 of the thread comprises the following specific steps:
[0033] First, determine the position of the incomplete thread tooth 1 to be removed, and replace the tool of the CNC machine tool with a straight-edged grooving knife of the corresponding size according to the tooth section of the thread.
[0034] Secondly, use a straight-edged grooving knife to cut and remove incomplete thread teeth 1. Specifically: the entry point of the straight-edged grooving knife is located on the small diameter surface of the thread, the entry point or the exit point during thread turning. When cutting, The straight-edge groov...
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Abstract
The invention provides a method for removing turning thread incomplete teeth. The method comprises the following steps that a straight blade slotting cutter is used for cutting and removing the thread incomplete teeth, and a cutter feeding point of the straight blade slotting cutter is located on the minor diameter surface of a thread or on the cutting feeding point when the turning thread is machined or on the cutter receding point; when cutting is carried out, the straight blade slotting cutter moves corresponding to a thread track, the radial cutting depth gradually becomes small until the thread incomplete teeth are removed and the cutting edge of the straight blade slotting cutter reaches the major diameter surface of the thread at the tail end of the thread incomplete teeth; lastly, the straight blade slotting cutter continues to move corresponding to the thread track, and the straight blade slotting cutter retracts in the axial direction and in the radial direction at the same time. According to the method, two processes of thread turning and thread incomplete tooth removing can be finished when a workpiece is clamped on a digital controlled lathe at a time, the thread incomplete teeth can be removed through an ordinary slotting tool and a thread turning mode, and the requirements for a product are met completely. Thread precision and production efficiency are improved, and subsequent assembly is facilitated.
Description
technical field [0001] The patent of the present invention relates to a method for removing incomplete teeth of a thread by using a common grooving tool on a numerically controlled lathe. Background technique [0002] The screw thread is a helical continuous convex part with a specific cross section made on the surface of a cylindrical or conical parent body. In machining, thread processing mainly has three forms: turning, tapping and milling. Such as figure 1 As shown, the thread turning process is cut with a tool on a cylindrical shaft (or the surface of the inner hole). At this time, the workpiece rotates once, and the tool moves a certain distance along the axis of the workpiece. The traces are the threads. Specifically: the threads formed on the outer surface are called external threads, and the threads formed on the surface of the inner hole are called internal threads. The basis of the thread is the helical line on the surface of the circular shaft. The thread can...
Claims
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IPC IPC(8): B23B1/00B23G9/00
Inventor 刘光耀邓亚弟赵毅闵琼英王春江刘义向志杨税妍王庆国
Owner DONGFANG TURBINE CO LTD