Engine crankcase bearing block splitting working method and apparatus
A crankcase and processing device technology, which is applied to crankshaft bearings, engine components, machines/engines, etc., can solve the problems affecting the machining accuracy of cracking grooves and is not suitable for the production of multiple varieties, so as to save broaching process and small deformation , to reduce the effect of deformation
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[0022] The method and device of the present invention will be further described in detail in the following embodiments given in conjunction with the accompanying drawings.
[0023] The engine crankcase bearing block cracking processing method of the present invention, carry out according to the following steps:
[0024] The back pressure mechanism composed of the compression block 8, the back pressure support 13, etc. goes down, and the compression block 7 exerts back pressure on the bearing cover 3 through the back pressure spring 9.
[0025] Under the action of the horizontal hydraulic cylinder 17, the slider body 15 and the broach bar 5, the outer diameter is D 0 The high-pressure hose 6 is inserted into the bearing hole with a diameter D from the initial position, and the broach 4 completes the processing of the initial cracking groove 1.
[0026] The high-pressure oil pressurized by the booster cylinder 16 enters the high-pressure hose 6, and the inner high pressure caus...
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