A Self-Centering Bore Measuring Gauge
A self-centering, inner hole technology, applied in the field of parts inspection, can solve the problems of difficult rotation of the ring gear around the axis, high measurement technology requirements, inaccurate measurement results, etc., to achieve fast detection speed and measurement technology. Low requirements and simple structure
Inactive Publication Date: 2018-02-09
CHONGQING UNIV OF TECH
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Problems solved by technology
However, because the axis position of the ring gear is difficult to determine, it is difficult to ensure that the ring gear rotates around the axis, and the operation is inconvenient. Once the ring gear rotates, the position of the axis center is shifted, causing the dial indicator or the dial indicator to indicate that the axis position is not in place. Measuring the diameter of the circle, resulting in inaccurate measurement results and low measurement accuracy
At the same time, the above method has high requirements for workers' measurement technology
Method used
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[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings.
[0028] During specific implementation: if Figure 1~Figure 5As shown in the figure, a self-centering inner hole measuring tool includes a horizontally arranged bottom plate 1, on which a self-centering mechanism 2 for determining the position of the axis line of the workpiece to be measured is installed, and a self-centering mechanism for fixing a hundred The table base 3 of / dial indicator, the hundred / dial indicator 4 that horizontal setting is installed on the described table base 3; Described self-centering mechanism 2 comprises the thimble 21 that is arranged on the base plate 1 and centering part 22, so The thimble 21 is arranged coaxially with the dial / dial indicator 4, and the orientation of the thimble 21 is opposite to that of the measuring end of the dial / dial indicator 4; The contact 221 of the inner ring of the workpiece to be measured, the two...
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The invention discloses a self-centering inner aperture measurement texting fixture, comprising a bottom plate which is horizontally arranged; the bottom plate is provided with a self-centering mechanism and a gauge pedestal; the gauge pedestal is provided with a horizontally-arranged dial indicator; the self-centering mechanism comprises a thimble and a centering member which are arranged on the bottom plate; the thimble and the dial indicator are coaxially arranged; the direction of the thimble is opposite to that of the measurement end of the dial indicator; the centering member has two contacts which abut against the inner ring of the workpiece to be detected; the two contacts are symmetrically arranged on two sides of the dial indicator and the directions of the two contacts are in the same directions of the measurement end of the dial indicator; the connection line between the two contacts is always arranged between the measurement end of the dial indicator and the thimble; and the thimble or the centering member can move along the axial direction of the dial indicator. The invention is simple in structure, easy to manufacture, low in cost, easy in operation, good in reliability, fast in detection, high in detection accuracy and wide in application range and has low requirement for the measurement skill of the worker.
Description
technical field [0001] The invention relates to the field of component detection, in particular to a self-centering inner hole measurement inspection tool. Background technique [0002] Flywheel is a high-speed rotating part on gasoline and diesel engines. Flywheel rotates at high speed. Due to inertia, it can store energy and release energy to overcome movement resistance and make the engine run smoothly. It is one of the indispensable components in diesel engines. A ring gear is pressed on the flywheel, and the ring gear meshes with the driving gear of the engine, which can assist gasoline and diesel engines to realize electric starting. In the prior art, the flywheel and the ring gear used in the diesel engine are mostly assembled by shrink fitting. First, the ring gear is heated and expanded to be fitted on the flywheel. After cooling, the flywheel and the ring gear are in interference fit. The friction force drives the flywheel to rotate. Once the interference between ...
Claims
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IPC IPC(8): G01B5/12
CPCG01B5/12
Inventor 甘琳巧高家利甘树德甘贵生罗鉴益王鸿赖家美
Owner CHONGQING UNIV OF TECH