CN-116817824-B - Device and method for detecting folding and unfolding gap of air rudder

Abstract

The invention relates to an air rudder folding and unfolding gap detection device which comprises a workbench (5) and is characterized in that a locking tool (3) is fixedly arranged on the workbench (5), a constant force output device (7) is fixedly arranged on the workbench (5) on the right side of the locking tool (3), a distance sensor (2) is fixedly arranged behind the locking tool (3), the locking tool (3) comprises two identical locking tool structures (30), each locking tool structure (30) comprises a rudder shaft tool base (31) and a rudder shaft overhanging cylindrical clamping structure (32), and the device and the processing method can accurately identify the highest point of change of a control surface in a detection gap, directly display the final value of a folding and unfolding gap, improve the detection efficiency and ensure the accuracy and stability of a result.

Inventors

• HUANG JINGYU
• ZHANG ZEXIAN
• LI WEI
• YANG ZHIDAN

Assignees

• 北京新风航天装备有限公司

Dates

Publication Date

20260512

Application Date

20230629

Claims (2)

1. 1. The air rudder folding and unfolding gap detection device comprises a workbench (5), and is characterized in that a locking tool (3) is fixedly arranged on the workbench (5), a constant force output device (7) is fixedly arranged on the workbench (5) on the right side of the locking tool (3), a distance sensor (2) is fixedly arranged behind the locking tool (3), The locking tool (3) comprises two identical locking tool structures (30), wherein each locking tool structure (30) comprises a rudder shaft tool base (31) and a rudder shaft overhanging cylindrical clamping structure (32), the rudder shaft tool base (31) is an angular plate, a plurality of bolt holes (311) are formed in the rudder shaft tool base (31), the rudder shaft overhanging cylindrical clamping structure (32) is a triangular column structure, the cross section of the triangular column structure is a right triangle, an air rudder shaft profiling structure (321) is formed in the cylindrical surface of the right triangle, the cylindrical surface of the right triangle is a tool locking surface (322), a plurality of bolt holes (3221) are formed in the tool locking surface (322), when the locking tool is used, the rudder shaft overhanging cylindrical clamping structures (32) of the two locking tool structures (30) clamp the rudder shaft (13) in the two air rudder shaft profiling structures (321), the rudder shaft overhanging cylindrical clamping structures (32) are tightly clamped together by using two locking angle irons (4), the rudder shaft (13) are tightly clamped by using the two rudder shaft tool base (31) to clamp the rudder shaft overhanging cylindrical clamping structures (311) on a tool base (31) through the bolt holes (32); The constant force output device (7) comprises a supporting table (71), a power device (72) and a constant force transmission plate (73), wherein the supporting table (71) is fixed on the workbench (5), the power device (72) is fixed on the supporting table (71), and the constant force transmission plate (73) is connected with a power device (72) moving pair; The distance sensor (2) is fixedly arranged on the workbench (5) right below the air control surface (12); When the device is used, the locking tool (3) is used for locking the rudder shaft (13) of the air rudder (1), the rudder shaft (13) is perpendicular to the workbench (5), the lower end face of the rudder shaft (13) is in contact with the workbench (5), the groove below the constant force transmission plate (73) is clamped on the rubber block structure (11) of the air rudder (1), the constant force output device (7) applies forward and reverse horizontal thrust to the air rudder (1) through the constant force transmission plate (73), and at the moment, the distance from the highest position of the lower surface (121) of the air rudder surface (12) to the surface of the workbench (5) is measured by the distance sensor (2), so that the distance from the highest position of the lower surface (121) of the air rudder surface (12) to the upper surface of the rudder shaft, namely the size of a folding gap is calculated.
2. 2. A method for detecting an air rudder fold and unfold gap using an air rudder fold and unfold gap detecting device according to claim 1, comprising the steps of: firstly, fixing a distance sensor (2) on a workbench (5), and installing a constant force output device 7 on the workbench 5; Secondly, locking a rudder shaft (13) of the air rudder (1) by using a locking tool (3) to ensure that the air rudder (1) does not shake; Thirdly, pushing the whole formed by the locking tool (3) and the air rudder (1) into a designated position along the slotting direction of the constant force transmission plate, and fixing the whole on a working table (5) by bolts; Controlling a constant force output device (7) to output set force to a straight line of the air rudder (1) perpendicular to a control surface (12) in a stable manner; Step five, detecting the maximum value from the lower surface (121) of the control surface (12) to the working table surface (5) through the distance sensor (2), subtracting the distance from the upper surface of the rudder shaft to the working table surface (5) from the maximum value, and calculating the numerical value of the folding gap; step six, controlling a constant force output device (7) to stably output a set force opposite to the fourth direction of the step on the air rudder (1), and repeating the step five to obtain the numerical value of the folding gap under the set force opposite to the fourth direction; Step seven, obtaining values of two folding gaps under set forces with opposite directions, and comparing the values with the set values of the standard folding gaps respectively: a. if the values of the two folding gaps are smaller than the set standard folding gap values, the air rudder (1) is a qualified product; b. If only one of the values of the two folding gaps is larger than the set standard folding gap value, the air rudder (1) is a disqualified product; and step eight, finishing the detection.

Description

Device and method for detecting folding and unfolding gap of air rudder Technical Field The invention relates to a device and a method for detecting folding and unfolding gaps of an air rudder, in particular to a device and a method for detecting the folding and unfolding gaps of the air rudder under a certain force state by utilizing an air rudder clamping device, a constant force output device and a sensor, and belongs to the field of assembly detection. Background With the gradual development of the aerospace field, the application of air rudder products in the field is increasing. The air rudder is used as a core component of a flight control system on the spacecraft, and the performance parameters of the air rudder are related to the stable operation of the spacecraft, so that the air rudder plays a vital role in attitude control and flight direction. The air rudder is a combined structure formed by assembling a control surface body and a rudder shaft, and the air rudder is mostly in a folding and unfolding mode due to space limitation. The gap between the rudder surface body and the rudder shaft after folding and unfolding influences the keys of changing the air flow and the lateral control force of the flying gesture, so that the gap after folding and unfolding is required to be regulated with a certain range of values in the whole structure and performance design stage of the aircraft, and the reliability of the product is ensured. After the air rudder assembly is assembled, folding unfolding gap detection is carried out, and when specified forces in two directions are applied to the vertical control surface at the upper end of the control surface, the gap between the air control surface body and the rudder shaft is detected. In the detection of folding and unfolding of the air rudders, after the multi-air rudders are fixed and clamped, one person manually generates a force designed and regulated above the control surface by using a tension meter, and the other person measures the gap between the control surface and the upper surface of the rudder shaft by using a height gauge or a digital display height gauge. In the actual operation process, a plurality of persons are required to finish the detection process, a control surface can be caused to apply a certain force value unstably and fluctuate within a certain range of values when a tension machine is used, meanwhile, when a gap between the control surface body and a rudder shaft is measured, a certain angle exists between the lower surface of the control surface body and the upper surface of the rudder shaft after a specified force is applied, the highest point of the lower surface of the control surface body is not easy to capture during manual measurement, and a certain error exists in a measurement result. Therefore, it is necessary to design a device for detecting the folding and unfolding gap of the air rudder, and propose a method for detecting the folding and unfolding gap of the air rudder, so as to improve the speed and accuracy of detecting the folding and unfolding gap of the air rudder, and achieve the efficiency improvement of the detection process and the consistency of the detection result. Disclosure of Invention In order to solve the problems, the invention aims to provide an air rudder folding and unfolding gap detection device and an air rudder folding and unfolding gap detection method so as to realize detection accuracy. The device for detecting the folding and unfolding gap of the air rudder comprises a workbench 5 and is characterized in that a locking tool 3 is fixedly arranged on the workbench 5, a constant force output device 7 is fixedly arranged on the workbench 5 on the right side of the locking tool 3, a distance sensor 2 is fixedly arranged behind the locking tool 3, The locking tool 3 comprises two identical locking tool structures 30, wherein each locking tool structure 30 comprises a rudder shaft tool base 31 and a rudder shaft overhanging cylindrical clamping structure 32, the rudder shaft tool base 31 is an angular plate, a plurality of bolt holes 311 are formed in the rudder shaft tool base 31, the rudder shaft overhanging cylindrical clamping structure 32 is a triangular column structure, the cross section of the rudder shaft overhanging cylindrical clamping structure is a right-angled triangle, an air rudder shaft profiling structure 321 is formed in the cylindrical surface of the right-angled triangle, the cylindrical surface of the right-angled triangle is a tool locking surface 322, a plurality of bolt holes 3221 are formed in the tool locking surface 322, when the locking tool is used, the rudder shaft 13 is clamped in the two air rudder shaft profiling structures 321 by the rudder shaft overhanging cylindrical clamping structures 32, the rudder shaft 13 is firmly clamped by the two locking angle irons 4, the two rudder shaft overhanging cylindrical clamping structures 32 are clamped by the two rudder sh