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Engine cylinder top dead center positioning device and positioning method

An engine cylinder and positioning device technology, which is applied to workpiece clamping devices, manufacturing tools and other directions, can solve the problems of difficulty in measuring multi-cylinder engines, low positioning efficiency, complex structure and high cost, and achieves convenient measurement of multi-cylinder engines and high positioning efficiency. , The effect of simple structure and low cost

Inactive Publication Date: 2017-04-12
ZHEJIANG GEELY POWERTRAIN CO LTD
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Problems solved by technology

[0003] The purpose of the present invention is to overcome the disadvantages of the current top dead center measurement device for engine cylinders, such as difficulty in measuring multi-cylinder engines, complex structure, high cost, and low positioning efficiency, and to provide a method for measuring multi-cylinder engines that is convenient, simple in structure, low in cost, and capable of positioning Higher efficiency engine cylinder top dead center positioning device and positioning method

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  • Engine cylinder top dead center positioning device and positioning method
  • Engine cylinder top dead center positioning device and positioning method

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the accompanying drawings.

[0016] as attached figure 1 Shown in accompanying drawing 4: a kind of engine cylinder top dead center locating device, comprises the cylinder body 1 of the engine that one end is provided with the first positioning hole 11 and the second positioning hole 12, and one end is provided with connecting key 21 and stretches out cylinder body 1 crankshaft 2 at one end, one side is provided with the positioning rod 3 of the first positioning shaft 31 that is clearance fit with the first positioning hole 11 and the second positioning shaft 32 that is clearance matching with the second positioning hole 12, and one end is provided with the positioning rod 3 3 The hinge shaft 41 hinged at one end on the other side and the one-way thrust rod 4 whose rotation axis is parallel to the axis of the crankshaft 2 of the engine is provided with an inner hole 51 that is loosely matched wit...

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Abstract

The invention relates to the field of manufacturing of vehicle engine cylinders, and aims to provide an engine cylinder upper stop point positioning device and a positioning method. The engine cylinder upper stop point positioning device comprises a cylinder body of an engine provided with a first positioning hole and a second positioning hole, a crankshaft provided with a connecting key, a positioning rod provided with a first positioning shaft and a second positioning shaft, a one-way thrust rod provided with a hinge shaft hinged to the positioning rod, an indexing plate provided with an inner hole and a key slot, a rocking handle connecting pipe connected with the indexing plate, multiple indexing teeth uniformly arranged at the outer side periphery of the indexing plate, an initial positioning recess provided with an initial positioning surface at the lower end of the positioning rod, and a back positioning recess provided with a back positioning surface and a guide inclined surface at the lower end of the one-way thrust rod. The engine cylinder upper stop point positioning device is convenient to measure a multi-cylinder engine, and is simple in structure, low in cost and higher in positioning efficiency. The positioning method of the engine cylinder upper stop point positioning device can satisfy sequential determination of upper stop points of all cylinders of the engine, and is higher in positioning efficiency.

Description

technical field [0001] The invention relates to the field of automobile engine cylinder manufacturing, in particular to a top dead center positioning device and a positioning method for an engine cylinder. Background technique [0002] Assembling the automobile engine, adjusting the valve clearance and adjusting the timing all need to locate the top dead center of each cylinder; the utility model of Chinese patent application number: 201220501420.4 discloses a measuring device for the top dead center of the engine cylinder, which includes a fixed seat, a scale And the ejector rod, the fixed seat is used to fix the measuring device to the cylinder head, the scale has a scale, the ejector rod is horizontally fixed on the top of the scale, and the ejector rod can be fixed on the top of the valve stem to follow the valve up and down sports. The engine cylinder top dead center measurement device has the disadvantage that it is difficult to measure multi-cylinder engines; the inv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B25B11/00
CPCB25B11/00
Inventor 万法高陈政弘王瑞平
Owner ZHEJIANG GEELY POWERTRAIN CO LTD
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