Crankshaft sprocket wheel angle position accuracy testing fixture
A technology of crankshaft sprocket and angle position, applied in the direction of angle/taper measurement, etc., can solve problems such as unfavorable quality control, and achieve the effects of fast measurement, convenient and fast positioning, and low detection cost
Inactive Publication Date: 2015-08-19
GUANGXI YUCHAI MASCH CO LTD
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Problems solved by technology
The existence of this contradiction is not conducive to quality control. It is necessary to re-invent and design a device for measuring the angular position of the marked teeth of the crankshaft sprocket.
Method used
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[0027] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.
[0028] Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations thereof such as "includes" or "includes" and the like will be understood to include the stated elements or constituents, and not Other elements or other components are not excluded.
[0029] Such as Figure 1 to Figure 4 As shown, the specific structure of the crankshaft sprocket angular position inspection tool according to the specific embodiment of the present invention includes: a base 8 , a bracket 1 , a inspection body 2 , a pressure plate 3 , a locking screw 4 , a measuring pin 7 and a positioning pin 9 . Among them, the detection body 2 has a positioning shaft that simulates the central axis of ...
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The invention discloses a crankshaft sprocket wheel angle position accuracy testing fixture. The crankshaft sprocket wheel angle position accuracy testing fixture comprises: a base; a support; and a disc-shaped testing fixture body, wherein one side of the testing fixture body is fixed on a testing fixture body installation vertical plate, the other side of the testing fixture body is provided with a positioning shaft adaptive to the shaft hole of a tested crankshaft sprocket, and the tested crankshaft sprocket is arranged on the positioning shaft in a penetrated mode and is locked by through a pressure plate and a locking screw for axial positioning. The testing fixture body is also provided with a positioning guiding hole and a positioning measuring hole which penetrate a disc surface; a positioning pin which is provided with a positioning ball head adaptive to the keyway of the tested crankshaft sprocket and can be axially movably inserted into the positioning guiding hole of the testing fixture body; and a measuring pin which is provided with a measuring head adaptive to the pulley groove of the crankshaft sprocket and can be axially movably inserted into the positioning measuring hole of the testing fixture body. The crankshaft sprocket wheel angle position accuracy testing fixture is accurate in positioning during a measuring process and is rapid in measurement.
Description
technical field [0001] The invention relates to the field of detection of geometric characteristic items of crankshaft sprocket products in the manufacture of internal combustion engines, in particular to a crankshaft sprocket angular position inspection tool. Background technique [0002] For the inspection of the geometric characteristics of internal combustion engine crankshaft sprocket products, any inspection involving the angular position of the crankshaft sprocket marked teeth is generally measured by a projector (according to the sprocket profile characteristics, the line between the circles is reconstructed to calculate the angle between the lines). For the single crankshaft sprocket, it can be measured with a projector, but for the double crankshaft sprocket, it cannot be projected. If other indexing devices are used for platform measurement, many auxiliary tools are needed. The existence of this contradiction is unfavorable for quality control, must reinvent and ...
Claims
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Inventor 梁振杰林超
Owner GUANGXI YUCHAI MASCH CO LTD