Inspection method and inspection method of threaded flange
The threaded flange general gauge simulates the large solid profile of the measured thread, checks whether the active pitch diameter of the measured thread exceeds the pitch diameter of the large solid profile, and also checks whether the actual size of the bottom diameter exceeds the large solid size.
Inspection method of threaded flange:
If the measured thread can be screwed with the thread go gauge but not with the thread stop gauge (the threaded flange can only be screwed with the measured thread in two sections, and the screwing amount shall not exceed two pitches), it means that the active pitch diameter of the measured thread does not exceed the pitch diameter of its large solid profile, and the single pitch diameter does not exceed the pitch diameter of its small solid profile, then the screwing ability and connection strength can be determined, and the measured threaded flange is qualified. Otherwise, it is unqualified.
Inspection method of threaded flange:
The large solid dimension of shaft parts (external threads) is reflected in the diameter, that is, the shaft diameter is larger than the drawing dimension; The large entity dimension of the hole accumulation part (internal thread) is reflected in the diameter, that is, the diameter of the hole is smaller than the depiction dimension.
If the measured thread can pass through the thread flange and does not pass through the thread non-stop gauge (the thread non-stop gauge is only allowed to pass through two sections of the measured thread, and the amount of screwing shall not be two pitches), it is indicated that the effective pitch diameter of the measured thread does not exceed the pitch diameter of its large solid profile, and the single pitch diameter does not exceed the pitch diameter of its small solid profile, then the screw fit and connection strength can be guaranteed, and the measured thread pitch diameter is qualified.
Pitch diameter of threaded flange is the nominal diameter of thread, that is, the value represented by * in the commonly called thread "m * *", which is a diameter between the major diameter (external thread is the diameter of the crest and internal thread is the diameter of the base) and the minor diameter (opposite to the major diameter).
Large solid tooth pattern, by definition, is a large entity that can be reached by the thread tooth pattern (don't tell me you don't even know what the "tooth pattern" is), that is, a larger value that can be reached in error scale and volume than that described in theory.
