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Online measurement system for measuring part deflection

A detection system and component technology, applied in the field of deflection measurement, can solve problems such as low reliability, large detection error, and inability to obtain measurement curves, and achieve the effect of overcoming the influence of human factors and improving efficiency and reliability

Inactive Publication Date: 2017-01-04
北京市电加工研究所有限公司 +1
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Problems solved by technology

[0003] However, for a long time, the deflection measurement of small mechanical parts in China mainly adopts the method of manual detection, that is, the force of the parts is measured with a hand-pulled spring scale. The influence factors are large, the detection error is large, the reliability is low, and the real-time measurement curve cannot be obtained, so the quality and efficiency of product detection cannot be effectively guaranteed

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  • Online measurement system for measuring part deflection
  • Online measurement system for measuring part deflection

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Effect test

Embodiment 1

[0031] Install the base frame 1 on the EDM machine table, and install a fixture on the Z-direction spindle of the EDM machine to clamp the component under test. The component under test and the displacement sensor 13 are aligned, and the top of the pressure sensor 9 is positive. Facing the lower end of the component under test; the pressure sensor 9 is the FUTEK load cell LSB200-100G, its sensitivity is 22.482mV / N, and the maximum range is 445N. The displacement sensor 13 is the Keyence TM-006 laser displacement sensor 13, the sensitivity is 0.04mm, and the measurement range is The specific operation is as follows: slowly twist the adjustment handle 2 to make the top of the pressure sensor 9 slowly approach the lower end of the measured part, and continuously adjust until the pressure sensor 9 just touches the measured part. At this time, set the output value of the pressure sensor 9 and the displacement sensor 13 to 0; then slowly twist the adjustment handle 2 to continuousl...

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Abstract

The invention relates to the field of deflection measurement, and discloses an online measurement system for measuring part deflection. The online measurement system comprises a bottom frame, a fixed installation base, a slide installation base, a lead screw, a guide rail, a pressure testing device and a displacement detecting device. The guide rail is fixedly arranged on the upper surface of the bottom frame. The slide installation base is arranged on the guide rail in a sliding mode. The lead screw penetrates through the fixed installation base and the slide installation base and is connected with the slide installation base in a threaded mode. The end, located on the fixed installation base, of the lead screw is connected with a drive device. The end, located on the slide installation base, of the lead screw is used for exerting force on a to-be-detected part. The pressure testing deice is adjusted to lean on the to-be-detected part to sense the stress change through the position change of the slide installation base. The displacement detecting device is used for detecting the displacement change of the to-be-detected part in the stress process. Artificial factor influences during detection can be avoided, and the efficiency and reliability of part deflection measurement are improved.

Description

technical field [0001] The invention relates to the technical field of deflection measurement, in particular to an in-situ detection system for measuring the deflection of parts. Background technique [0002] Deflection is one of the important indicators to measure the performance of mechanical parts, which reflects the stiffness characteristics of parts. Deflection measurement of parts that have been processed can not only detect whether they meet the design specifications, but also help analyze the process level and defects in the manufacturing process of parts. Therefore, it is of great significance to truly reflect and detect the deflection of parts. [0003] However, for a long time, the deflection measurement of small mechanical parts in China mainly adopts the manual detection method, that is, the force of the parts is measured by pulling the spring by hand. When testing, it is mainly based on experience, many people are needed, and the testing is subjective. The in...

Claims

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Application Information

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IPC IPC(8): G01N3/08
Inventor 刘建勇翟力军陈葆娟唐宏亮戴礼峻王洪波郭妍蔡延华丁连同何史杉李家富李松伟
Owner 北京市电加工研究所有限公司
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