Tooling for machining a borehole of an engine cylinder block
A technology for engine cylinders and cylinder blocks, applied in metal processing machinery parts, metal processing equipment, positioning devices, etc., can solve problems affecting engine performance and service life, large air leakage of engine pistons, and out-of-round deformation of cylinder holes. To achieve the effect of shortening the running-in period, meeting the demand for lightweight, and reducing the consumption of lubricating oil
Inactive Publication Date: 2017-06-20
CHONGQING CHANGAN AUTOMOBILE CO LTD
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Problems solved by technology
However, after assembling the cylinder head of the engine product, due to the tightening force of the cylinder head bolts acting around the cylinder bore of the cylinder block, the cylinder bore is out of round and deformed
When the engine is running, the piston ring cannot fully fit the deformation of the cylinder bore, resulting in poor sealing of the cylinder bore, resulting in large air leakage from the engine piston, dilution of engine oil, high oil consumption, etc., affecting the performance and service life of the engine
Method used
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Embodiment Construction
[0022] The invention will be described in detail below in conjunction with the accompanying drawings.
[0023] see Figure 1 to Figure 3 , shows a tooling for machining engine cylinder bores, including a simulated cylinder head 1, a simulated cylinder gasket 3 arranged between the simulated cylinder head 1 and the cylinder block, and several cylinder heads fixed on the simulated cylinder head 1 The bolt mounting seat 2, the simulated cylinder head 1, the simulated cylinder pad 3 and the bolt mounting seat 2 are made of stainless steel; the manufacturing cost is low, meets the demand for lightweight, can reduce the cumulative deformation and wear of the tooling caused by repeated use, and can Prevent tooling from rusting. The upper and lower sides of the bottom of the simulated cylinder head 1 are provided with rolling steps 7; it is convenient for the simulated cylinder head 1 to be transported on the transport track. The left and right sides of the bottom of the simulated c...
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The invention discloses a tooling for machining a borehole of an engine cylinder block. The tooling comprises a simulative cylinder head, a simulative cylinder head gasket arranged between the simulative cylinder head and a cylinder block, and a plurality of bolt mounting bases fixed to the simulative cylinder head, wherein the simulative cylinder head is provided with a through hole corresponding to the borehole of the cylinder block, and the diameter of the through hole on the simulative cylinder head is larger than that of the borehole of the cylinder block; the simulative cylinder head gasket is provided with a circular hole at the position corresponding to the through holed on the simulative cylinder head, and each bolt mounting base is provided with a through hole for set bolts to penetrate through to fix the simulative cylinder head and the cylinder block; the simulative cylinder head is provided with bolts holes connected to the bolts of the cylinder block. Through the tooling, the borehole will not be out-of-round or the out-of-round of the borehole is minimized as far as possible after assembly of an engine cylinder head, so that a piston ring and the borehole are sealed more tightly, the leakage of a piston and oil consumption are reduced, and the engine performance and the service life are improved.
Description
technical field [0001] The invention relates to an engine cylinder block, in particular to a tool for processing cylinder holes of the engine cylinder block. Background technique [0002] Generally, the engine is processed separately from the cylinder block and the cylinder head. After the cylinder block is processed, the cylinder bore can meet the requirements of better roundness and cylindricity. However, after the cylinder head of the engine product is assembled, due to the tightening force of the cylinder head bolts acting around the cylinder bore of the cylinder block, the cylinder bore is out of round and deformed. When the engine is running, the piston ring cannot fully fit the deformation of the cylinder bore, resulting in poor sealing of the cylinder bore, resulting in large air leakage from the engine piston, dilution of engine oil, and high oil consumption, which affect the performance and service life of the engine. Contents of the invention [0003] The objec...
Claims
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Login to View More IPC IPC(8): B23Q3/06
CPCB23Q3/062
Inventor 王红刘君操张晓宇苏学颖王岳宇
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD