Measurement digital micrometer in vertical keyway
A micrometer, vertical technology, used in measuring devices, instruments, optical devices, etc., can solve the problem of inability to measure the groove width at the bottom of deep grooves, and achieve the effect of accurate display
Pending Publication Date: 2017-10-20
刘建哲
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Problems solved by technology
[0004] The purpose of the present invention is to provide a vertical keyway internal measurement digital display micrometer to solve the problem that the existing micrometer cannot measure the groove width at the bottom of the deep groove
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Embodiment Construction
[0025] Such as Figure 1-3 As shown, one specific embodiment of a vertical keyway internal digital display micrometer includes a vertical main body 1 and a measuring lever 2 hinged in the middle. The main body 1 is vertically provided with a groove 8, and the measuring lever 2 is vertically placed in the groove 8, and the middle position of the measuring lever 2 is hinged with the side wall of the middle position of the groove 8, so that the measuring lever can Relative rotation relative to the main body, wherein the measuring lever 2 is curved in the hinged position. The upper end of the measuring lever 2 is formed with a first cavity 9, and the lower end is formed with a second cavity 10; the first cavity 9 communicates with the upper end of the groove 8, and the second cavity 10 is connected to the groove 8. The lower end of the groove 8 communicates. After the measuring lever is hinged to the inside of the groove, the upper end of the measuring lever 2 penetrates into th...
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The invention discloses a measurement digital micrometer in a vertical keyway. The micrometer comprises a vertical main body and a measuring lever, wherein the middle parts of the vertical main body and the measuring lever are hinged. The lower ends of the main body and the measuring lever are flush with each other. A display module is arranged on the upper end of the main body. A grating ruler is arranged on the lower end of the measuring lever. The grating ruler and the display module are electrically connected. A backspring is arranged between the upper end of the main body and the upper end of the measuring lever. Two fixed measuring heads are arranged on the lower end of the main body. A movable measuring head is arranged on the lower end of the measuring lever. Two fixed measuring heads and the movable measuring head are respectively located on three vertices of a triangle. According to the invention, through the movable vertical main body and measuring lever, the edges of the fixed measuring head and the movable measuring head are close to two side walls in a groove in the keyway; the moving distance of the movable measuring head is measured by the grating ruler, and is added to the width of the lower end of the device to acquire the width of the groove in the keyway; the width is accurately displayed on the display module; and the three-point measurement of the fixed measuring heads and the movable measuring head is more stable.
Description
technical field [0001] The invention relates to the field of micrometers, in particular to a vertical keyway internal measurement digital display micrometer. Background technique [0002] In the certification standard of the German Automobile Industry Association "VDA" (the highest standard in the world) promoted by the global machinery industry, all processing parts require data display, and the current mechanical measurement and processing are all measured with a horizontal two-point probe inner diameter micrometer Groove width dimensions (refer to Figure 5 ), the inner diameter micrometer is horizontal in the open space, there is no problem, but the keyway is reprocessed on the bottom of the closed deep groove (refer to Figure 6 ), the existing inner diameter micrometer cannot be put into the position to be detected and read the data directly and accurately, and it cannot realize all digitization and cannot meet the requirements of "VDA". [0003] So now be badly in ne...
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CPCG01B11/02
Inventor 刘建哲
Owner 刘建哲