Claw pole boss height measuring device

Abstract

The invention provides a claw pole boss height measuring device which comprises a support unit, a power unit and a measuring unit, wherein the support unit comprises a support frame, a cross beam support and a sliding table assembly, wherein the sliding table assembly comprises a sliding table support plate, an upper sliding table end plate and a lower sliding table end plate; a sliding table back plate is arranged between the sliding table support plate; the power unit comprises a cylinder, a cylinder stretching rod and an elevating assembly; the cylinder is fixed on the upper sliding table end plate; the elevating assembly comprises a straight line guide track, a straight line slide block and a slide block connecting block; the straight line guide track is arranged on the side plane of the sliding table support plate; the straight line slide block can slide along the straight line guide track; the slide block connecting block is fixedly connected with the straight line slide block and is fixedly connected with the cylinder stretching rod; the slide block connecting block is provided with a slide block prolonging plate which extends downwards; the measuring unit comprises a measuring support plate, a displacement sensor and a positioning rod; the measuring support plate is fixedly connected with the slide block prolonging plate; the displacement sensor and the positioning rod are arranged on the measuring support plate; the displacement sensor and the positioning rod are fixedly connected by fixing clamps; and the lower ends of both the displacement sensor and the positioning rod are arranged below the measuring support plate. The claw pole boss height measuring device is simple in structure, compact, small in size and easy to install and maintain; and a power device for controlling the measuring device to move up and down is also arranged on a working table and is easy to maintain and regulate and control.

Description

technical field [0001] The invention relates to a measuring device for an inner core boss of an automobile generator, in particular to a height measuring device for a claw pole boss. Background technique [0002] The claw pole is the power core of the automobile generator, and the output power of the generator depends on the material quality and the shape design of the claw pole. The bottom surface of the boss is directly produced by precision forging, and the upper surface of the boss is produced after turning. The height error of the boss surface of the claw pole has a great influence on the output power and noise quality of the claw pole after assembly, so the height of the boss of the claw pole is often It is regarded as a mandatory inspection item before leaving the factory. Due to the high requirements for automatic detection accuracy and high manufacturing costs, there is no relatively mature high-precision boss detection equipment. Most domestic enterprises still u...

AI Technical Summary

Problems solved by technology

Due to the high requirements for automatic detection accuracy and high manufacturing costs, there is no relatively mature high-precision boss detection equipment

Most of the domestic enterprises still use the traditional scale and manual detection method for measurement. Even if there are two full inspections, it is still impossible to ensure that the height of the boss of each claw pole is accurate. There is no mature high-precision boss detection equipment.

With the increase of output, the full inspection of each part before leaving the factory will consume a lot of manpower and material resources, and manual inspection is likely to cause false inspections. In China, the structure of pneumatic measuring instruments is used for inspection, and the inspection of this structure is stable. For a long time, it is greatly affected by the fluctuation of the air source pressure. The relative position height difference detection device still uses the traditional dial gauge and dial gauge, but it can only be read through the gauge head, but manual reading is easy to cause errors; while the bump The system and method of height measurement generally adopts light source irradiation and relies on reflection to measure height, so it is not suitable for the working conditions of large temperature difference and high humidity in the factory; the use of pneumatic measuring instruments takes a long time to detect and stabilize, and is greatly affected by air source pressure fluctuations; The single-point measurement value cannot accurately reflect the actual values ​​of the upper surface and the bottom surface of the boss, and the error is large

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