Machining method for engine connecting rod
A technology of engine connecting rods and processing methods, which is applied in the direction of connecting rods, mechanical equipment, shafts and bearings, can solve the problems of reduced reliability and durability of connecting rods, high processing precision requirements, and increased processing costs of connecting rods, etc., to achieve The effect of improving levelness and increasing strength
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[0016] Example 1
[0017] Such as figure 1 The engine connecting rod shown includes a connecting rod body 1 and a connecting rod cover 2 installed at the end of the connecting rod body 1. The connecting rod body 1 and the connecting rod cover 2 are connected by a plurality of bolts 4 installed on the side of the connecting rod body 1 , The connecting rod body 1 and the connecting rod cover 2 are provided with a large-head hole 3, the other end of the connecting rod body 1 is provided with a small-head hole 11, and the center of the large-head hole 3 is at the break of the connecting rod body 1 and the connecting rod cover 2. In the plane; the connecting rod cover 2 is also integrally connected with a thimble rod 21 on the same straight line as the connecting rod body 1.
[0018] The machining method of the above engine connecting rod can generally refer to the method and equipment in CN201310021032.5, including the following steps:
[0019] (A) Roughly grinding both ends of the con...
Example Embodiment
[0023] Example 2
[0024] This embodiment provides a method for processing the connecting rod of the engine in Example 1. The steps are basically the same as those in Example 1, except that the connecting rod is heated to 150°C, and the hydraulic cylinder drives the two-way wedge downward. Move and press into the semicircular moving sleeve and push the semicircular moving sleeve to act on the inner wall of the big head hole 3. The big head hole 3 is instantly broken and the connecting rod cover 2 separates from the connecting rod body 1, and is poured with cold water (30°C).
Example Embodiment
[0025] Example 3
[0026] This embodiment provides a method for processing the connecting rod of the engine in Example 1. The steps are basically the same as those in Example 1, except that the connecting rod is heated to 200°C, and then the hydraulic cylinder drives the bidirectional wedge downward. Move and press into the semicircular moving sleeve and push the semicircular moving sleeve to act on the inner wall of the big head hole 3. The big head hole 3 is instantly broken and the connecting rod cover 2 separates from the connecting rod body 1, and it is poured with cold water (20°C).
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