Method for processing internal spline of blind hole on end face of cylindrical shaft
A technology of internal splines and cylindrical shafts, which is applied in the field of improving the processing method of internal splines in blind holes on the end faces of cylindrical shafts. It can solve the problems of scrapped parts, easy occurrence of out-of-tolerance, and difficulty in gear shaping operations, etc., and achieves high pass rate and excellent processing low cost effect
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[0017] Example 1
[0018] One end of the high-speed rotating shaft is processed with an internal spline. The specification of the internal spline is: I NT 18z×1.5m×30P×6H (see GB / T 3478.1), the material of the shaft is 40Cr, and the diameter is φ40k6. It is known that the bottom diameter of the internal spline is φ29.70, and the axial length of the internal spline is 22mm. The main implementation steps are as follows:
[0019] 1. First process a blind hole on the end face of the shaft with a diameter of φ35H8 and a depth of 22mm.
[0020] 2. Using 40Cr material, the blank of the inner spline bushing is machined, the diameter is 0.01mm~0.03mm larger than the actual diameter of the blind hole in the process, and the length is 22mm. The internal splines are processed by the gear shaping method.
[0021] 3. Press the inner spline bushing into the process blind hole on the end face of the cylindrical shaft, and keep the end face of the inner spline bushing and the end face of the...
Example Embodiment
[0023] Example 2
[0024] One end of the high-speed rotating shaft is processed with an internal spline. The specification of the internal spline is: I NT 24z×1.25m×30P×6H, the material of the shaft is 40Cr, and the diameter is φ50f7. The internal spline is a non-standard specification. The bottom diameter of the inner spline is calculated to be φ32.25mm, and the axial length of the inner spline is 29mm. The main implementation steps are as follows:
[0025] 1. A process blind hole is machined on the end face of the shaft, with a diameter of φ42H8 and a depth of 29mm.
[0026] 2. Using 40Cr material, the blank of the inner spline bushing is machined, the diameter is 0.01mm~0.03mm larger than the actual hole diameter of the blind hole, and the length is 29mm. The inner spline is processed by wire cutting method.
[0027] 3. Press the inner spline bushing into the process blind hole on the end face of the cylindrical shaft, and keep the end face of the inner spline bushing an...
Example Embodiment
[0029] Example 3
[0030] Process an internal spline at one end of the slender shaft rotating at high speed. The specification of the internal spline is: I NT 16z×1m×30P×6H (GB / T3478.1), the material of the shaft is 45# steel, and the diameter is φ30h9 , look up the table and know that the bottom diameter of the internal spline is φ17.80, and the axial length of the internal spline is 50mm. The main implementation steps are as follows:
[0031] 1. A process blind hole is machined on the end face of the shaft, with a diameter of φ25H8 and a depth of 50mm.
[0032] 2. Using No. 45 steel, the blank of the inner spline bushing is machined, the diameter is 0.01mm~0.03mm larger than the diameter of the blind hole, and the length is 50mm. The inner spline is processed by wire cutting method.
[0033] 3. Press the inner spline bushing into the process blind hole on the end face of the cylindrical shaft, and keep the end face of the inner spline bushing and the end face of the cylind...
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