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Electric and spring coupling pressure foot pressing force measuring device and control method

A technology of spring coupling and measuring devices, which is applied in measuring devices, electrical program control, force/torque/power measuring instruments, etc., can solve the problem of uncontrollable and precise control of the pressing force of electric and spring coupling pressure feet, and achieve The effect of constant pressing force, simple control and simple operation

Pending Publication Date: 2021-03-19
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
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Problems solved by technology

[0006] The purpose of the present invention is to provide an electric and spring coupling pressure foot pressing force measuring device and control method to solve the problem that the compact terminal electric and spring coupling pressure foot pressing force cannot be controlled and accurately controlled

Method used

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  • Electric and spring coupling pressure foot pressing force measuring device and control method
  • Electric and spring coupling pressure foot pressing force measuring device and control method
  • Electric and spring coupling pressure foot pressing force measuring device and control method

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Embodiment Construction

[0029] The electric and spring-coupled pressure foot pressing force measurement device and control method of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] Such as figure 1 As shown, an electric and spring-coupled pressure foot pressing force measuring device includes a dynamometer, an L-shaped baffle 1, a small laser displacement sensor 3 and two rectangular coil springs 2, and the two rectangular coil springs 2 are symmetrically installed on the At the bottom of the screw connecting plate 5, the rectangular coil spring 2 is connected with the top of the platform on the upper front side of the pressure foot connecting seat 6. The L-shaped baffle 1 is fixed in the middle of the bottom of the front side of the screw connecting plate 5, and the small laser displacement sensor 3 is fixed on the front side of the table body. The small laser displacement sensor 3 cooperates with the L-...

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Abstract

The invention discloses an electric and spring coupling pressure foot pressing force measuring device and a control method. The method comprises the steps of: utilizing a dynamometer for calibration to obtain the average elastic coefficient of a rectangular spiral spring; calculating the compression deformation amount of the rectangular spiral spring through reading of a small laser displacement sensor, solving the pressing force of a pressure foot, comprehensively considering the pressing force fluctuation allowance caused by workpiece deformation, converting pressing force control into visual rectangular spiral spring displacement control by setting a compression amount threshold value, and indirectly controlling the pressing force of the pressure foot to be constant. The method is simple in measurement and control process and easy to implement.

Description

technical field [0001] The invention belongs to the technical field of aircraft automatic hole-making assembly, and in particular relates to an electric and spring-coupled pressure foot pressing force measuring device and a control method. Background technique [0002] With the rapid development of aerospace technology and higher requirements for aircraft performance, automatic hole making technology has also received more and more attention and attention. As the core component of automatic hole-making equipment, the hole-making end effector plays an important role in pressing the workpiece, detecting the normal direction and processing the workpiece. Therefore, the pressure foot of the end effector has become an important guarantee of processing quality. [0003] The control of the pressure foot mechanism includes electro-hydraulic control and pneumatic control. The electro-hydraulic control system is commonly used in engineering. The pressure foot mechanism of the end ef...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L5/00G05B19/05
CPCG01L5/0066G01L5/0076G05B19/054
Inventor 田威李奇李鹏程王珉李波张奇李智豪潘劲伟康瑞浩
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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