Measuring tool used for measuring eccentric distance of connecting rod mechanism at limit position and application thereof
A technology of limit position and link mechanism, applied in the direction of measuring device, mechanical device, mechanical measuring device, etc., can solve the problems of limited space, increase the difficulty of measuring eccentricity, and no mature method, etc., and achieve simple operation Effect
Inactive Publication Date: 2016-11-09
SHENYANG AIRCRAFT CORP
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Problems solved by technology
[0002] In the field of mechanical manufacturing technology, the structure of parts is complex, and it is often necessary to measure the eccentricity when the mechanism is at the limit position. There is no mature method for measuring the eccentricity between the center position of the two ends of the hole and the middle pin shaft when the connecting rod mechanism is at the limit position.
[0003] At the same time, if figure 1 As shown, the space of this kind of products is limited when measuring, and there are some springs and other parts near the measured position, which increases the difficulty of measuring eccentricity
Method used
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[0017] Such as Figure 2 to Figure 5 The measuring tool used to measure the eccentricity of the limit position of the connecting rod mechanism shown in the figure includes a template 1, pin I2 and pin II3, wherein there are pin holes on the left and right sides of the template 1, and the pin I2 passes through the pin hole D1 and the template 1 fit, pin Ⅱ3 fits with model 1 through pin hole D2, and both fits adopt H7 / n6 interference fit. The end part a on the pin I2 is in clearance fit with the measured hole I6 of the part, the end part b on the pin II3 is in clearance fit with the measured hole II7 of the part, and the tolerances of d1 and d2 are both selected to be h8. A groove 4 is provided in the middle of the template 1, and the groove 4 is used to cooperate with the measured pin shaft 5 to measure the eccentricity e. The size of the groove 4 is determined by H 1 and H 2 The size is determined, taking the eccentricity e as 2.5 as an example,
[0018] When using the ab...
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The invention provides a measuring tool used for measuring the eccentric distance of a connecting rod mechanism at a limit position and an application thereof. The measuring tool comprises a sample plate, a bolt I, and a bolt II. The left and right sides of the sample plate are each provided with a pin hole. The bolt I and the bolt II are in interference fit with the sample plate through the pin holes respectively. The middle part of the sample plate is provided with a groove which cooperates with a measured pin shaft to play a measurement role. The tail end a of the bolt I is in interference fit with a measured hole I, and the tail end b of the bolt II is in interference fit with a measured hole II. When the measuring tool is used to measure the eccentric distance from the center positions of two end holes to the middle pin shaft of a connecting rod mechanism at a limit position, the tail end a of the bolt I is inserted into the measured hole I of a part, the tail end b of the bolt II is inserted into the measured hole II of the part, and finally, whether the measured pin shaft falls into the groove of the sample plate is observed, wherein the eccentric distance e of the part is qualified if the measured pin shaft falls into the groove of the sample plate, or, the eccentric distance e of the part is unqualified. The measuring tool has the characteristics of being simple to operate, and convenient and practical.
Description
technical field [0001] The invention relates to a measuring tool for measuring the eccentric distance of the limit position of a connecting rod mechanism and its application, which is used to realize the measurement of the center position of the holes at both ends of the limit position of the connecting rod mechanism and the eccentric distance of the middle pin shaft. Background technique [0002] In the field of mechanical manufacturing technology, the structure of parts is complex, and it is often necessary to measure the eccentricity when the mechanism is at the limit position. There is no mature method for measuring the eccentricity between the center position of the two ends of the hole and the middle pin shaft when the connecting rod mechanism is at the limit position. [0003] At the same time, if figure 1 As shown, when measuring such products, the space is limited, and there are some springs and other parts near the measured position, which increases the difficulty ...
Claims
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Login to View More IPC IPC(8): G01B5/252
CPCG01B5/252
Inventor 赵立红张秀云
Owner SHENYANG AIRCRAFT CORP