An automatic pouring method of ablative material facing honeycomb core hole
A technology of ablating materials and honeycomb cores, applied in electric controllers, controllers with specific characteristics, applications, etc., can solve the problems of poor perfusion quality and low efficiency, and achieve the effect of ensuring the perfusion height and avoiding damage.
Active Publication Date: 2020-02-18
DALIAN UNIV OF TECH
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Problems solved by technology
[0006] The technical problem mainly solved by the invention is to overcome the deficiencies of the existing methods. Aiming at the problems of low efficiency and poor pouring quality in the automatic pouring method of low-density ablation materials for honeycomb core holes, a method for honeycomb core holes is invented. Automatic perfusion method of ablative material
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[0050] The specific embodiment of the present invention will be described below in conjunction with the technical scheme and the accompanying drawings: the process of automatic pouring of ablation material facing the honeycomb core hole.
[0051] The present invention adopts the automatic perfusion device based on industrial robot, such as figure 1 shown. Among them, C is the normal vector direction of the stuffing tube, D is the automatic perfusion device, and P is the reference point of the stuffing tube. Manipulator 1 uses a six-degree-of-freedom industrial robot from KUKA, and the filling tube 7 has a radius R t The core hole of the honeycomb part is an irregular hexagonal straight hole, the hole depth is 70mm, and the side length is about 10-12mm. The filling height H of the lower material is required to be 30±1.75mm.
[0052] The flow chart of the automatic perfusion method is shown in figure 2 As shown, the specific steps of the method are as follows:
[0053] The ...
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The invention belongs to the technical field of perfusion, and relates to an automatic perfusion method for an ablation material facing a honeycomb type core hole. The automatic perfusion method usesa variety of sensor technologies to identify the contour feature information of the honeycomb type core hole by using a visual sensor and calculate the pose vector of a target point. A core hole fillability discriminant formula for predicting the perfusion safety and the perfusion quality of current honeycomb core hole is proposed, and is used for giving a core hole filling height calculation formula for adjusting the propelling amount of a filler tube. A filler tube piston propulsion control method and a force position coordinated perfusion control model are proposed, a pressure sensor is used for tracking the force position information in real time, and the perfusion height is ensured. The automatic perfusion device based on an industrial robot is adopted. The method avoids the destruction of the performance of a low-density ablation material and the damage of a honeycomb member, and realizes the high-quality, high-efficiency automatic perfusion process of the low-density ablation material in the honeycomb type core hole.
Description
technical field [0001] The invention belongs to the technical field of perfusion, and relates to an automatic perfusion method of ablation material facing honeycomb core holes. Background technique [0002] When the spacecraft is launched into space, in order to protect its internal scientific instruments and components from damage, a heat-resistant layer must be attached to the surface of the spacecraft. The spherical cap honeycomb heat-proof layer structure has the advantages of light weight, high bending rigidity, and small thermal conductivity, and is very suitable for working in high-temperature environments. The honeycomb core material is filled with low-density ablative material, which can play a good role in heat insulation and is the first line of defense for the spacecraft's thermal protection system. Therefore, the perfusion quality of the low-density ablative material directly determines the overall thermal protection performance of the return capsule. [0003]...
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IPC IPC(8): B29C67/20G05B11/42B25J11/00B29L31/60B29K105/04B29K105/16B29L31/30
Inventor 王永青崔学文李特梁馨刘海波谭朝元李兰柱贾振元
Owner DALIAN UNIV OF TECH