A method for repairing inner hole straight thread
A thread repair and straight thread technology, applied in the field of thread processing, can solve the problems of low processing efficiency, unstable processing dimensional accuracy, inability to accurately determine the starting position of the thread, etc., to achieve high processing accuracy, improve processing efficiency, and meet design requirements. Effect
Active Publication Date: 2018-10-12
JINXI IND GRP
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Problems solved by technology
[0003] The purpose of the present invention is to provide a straight thread repair method for inner holes in order to solve the problems that the traditional thread repair process cannot accurately determine the starting point of the thread, and there are problems such as unstable machining dimensional accuracy and low machining efficiency.
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[0017] A method for repairing inner hole straight thread of the present invention, the specific repair steps are as follows:
[0018] 1) After the product blank before thread processing is fixed by the fixture 1, the standard part 2 of the inner hole straight thread product is processed by the CNC tool, and the standard part 2 is screwed into the inner hole of the standard part 2 without removing the standard part 2. Straight thread detection gauge 3 detects whether the standard part 2 meets the product design requirements;
[0019] 2) When the straight thread of the inner hole of the standard part 2 meets the screw-in depth requirement of the straight thread detection gauge 3, a thread extending axially from the outside of the standard part 2 to the side of the standard part 2 is fixed on the rear end surface of the straight thread detection gauge 3. The positioning rod 4, the front end of the positioning rod 4 is in contact with the front end face of the fixture of the clamp...
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The invention relates to a method for repairing straight threads in inner holes, belonging to the field of thread processing. In the thread repairing method of the present invention, the standard part of the straight thread product in the inner hole is firstly processed, and the straight thread detection gauge is screwed into the straight thread detection gauge without unloading the standard part; Axial position and relative position of the circumference; after the straight thread detection gauge is screwed into the product to be repaired, it is fixed with the fixture to ensure that the axial position and the relative circumferential position of the straight thread detection gauge’s rear end surface relative to the front surface of the fixture are consistent with the processing standard parts. The same feed program as that of standard parts is used to complete the straight thread repair process of the inner hole. The thread repairing method of the invention can accurately determine the starting position of the thread, has high processing precision, and the thread repaired product meets the design requirements.
Description
technical field [0001] The invention relates to a method for repairing straight threads in inner holes, belonging to the field of thread processing. Background technique [0002] In the process of processing the straight thread of the inner hole of the workpiece, the thread may fail to be processed once, and the thread needs to be repaired. The main difficulty in repairing threads is that it is difficult to determine where the thread starts. If the starting position is inaccurate, it will cause chaotic buckling and lead to scrapping of the product. In the traditional thread repairing process, finding the thread start position of the workpiece can only be guaranteed by manual operation experience, the machining dimensional accuracy is unstable, and the machining efficiency is low. Contents of the invention [0003] The purpose of the present invention is to provide a straight thread repair method for inner holes to solve the problems that the traditional thread repair pro...
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IPC IPC(8): B23G9/00
CPCB23G9/009
Inventor 王玉锋张培才李建功何忠泰董张成吴清华朱永康赵志香王永峰孙江
Owner JINXI IND GRP