High-precision core assembly process for whole shell core of four-cylinder body of engine
An engine and high-precision technology, applied in the direction of cores, manufacturing tools, metal processing equipment, etc., can solve the problems that cannot meet the accuracy requirements of sand core groups, increase structural complexity, increase assembly accuracy, etc., to improve core assembly efficiency, The effect of reducing labor intensity and improving precision
Active Publication Date: 2021-05-28
苏州勤堡精密机械有限公司
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Problems solved by technology
The increase in structural complexity not only increases the weight of the sand core, but also increases the difficulty of assembly accuracy. Using the existing assembly process design can no longer meet the accuracy requirements of the sand core group.
Method used
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Embodiment 1
[0047] Please refer to Figure 1-Figure 9 , the high-precision core assembly process of the engine four-cylinder cylinder block full-shell core in this embodiment includes the following steps:
[0048] 1) Core making: Four cylinder main cores 100, shell cores and supporting cores are produced by casting process, wherein the shell cores include air intake shell core 107, exhaust shell core 108, fan side plate 109 and flywheel side Plate 110, the supporting core includes water jacket core 102, water channel core 103, pillow core 104, first oil passage 105, second oil passage 106, cam 111; wherein water channel core 103, water jacket core 102, first oil passage 105. The second oil passage 106 and the cam 111 are made by the hot core casting process; the pillow core 104, the intake shell core 107, the exhaust shell core 108, the fan side plate 109, the flywheel side plate 110 and the cylinder main core 100 All are made by cold core casting process;
[0049] In the present embodi...
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The invention discloses a high-precision core assembly process for a whole shell core of a four-cylinder body of an engine. The high-precision core assembly process comprises the following steps of 1) performing core manufacturing, specifically, four cylinder barrel main cores, shell cores and matching cores are manufactured by adopting a casting process, the shell cores comprise an air inlet shell core, an air outlet shell core, a fan side plate and a flywheel side plate, and the matching cores comprise a water jacket core, a water channel core, a pillow core, a first oil channel, a second oil channel and a cam; (2) performing deburring inspection; (3) assembling the four cylinder barrel main cores to form a main body core; (4) assembling the water jacket core, the water channel core and the pillow core together according to the design structure to form a first set of matching cores; (5) assembling the first oil channel on the exhaust shell core, and assembling the second oil channel on the fan side plate; (6) soaking, coating and baking a sand core; and (8) performing sand core assembly preparation, matching core assembly and shell core assembly. According to the high-precision core assembly process, the position precision of all sand cores assembled together can be ensured to be within the error range required by design, and the size precision of cylinder body forming can be effectively ensured.
Description
【Technical field】 [0001] The invention belongs to the technical field of cylinder block core assembly technology, in particular to a high-precision core assembly process for a four-cylinder cylinder block full shell core of an engine. 【Background technique】 [0002] The cylinder block of an automobile is the main body of the engine. It connects each cylinder and the crankcase as a whole, and is a supporting framework for installing pistons, crankshafts and other parts and accessories. The upper part of the cylinder block is a side-by-side cylinder barrel, which is currently inlaid with cylinder liners; the lower part of the cylinder block is the crankcase, which is used to install the crankshaft, and various accessories such as generators and engine brackets can be installed outside it. The cylinder block is mostly made of cast iron or aluminum alloy. Before casting molding, it is necessary to make sand cores. Due to the overall large volume, heavy weight and complex struct...
Claims
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Login to View More IPC IPC(8): B22C9/10
CPCB22C9/10
Inventor 赖正伟
Owner 苏州勤堡精密机械有限公司