WO2022100532A1

WO2022100532A1 - Clamp for aerospace testing machine

Info

Publication number: WO2022100532A1
Application number: PCT/CN2021/129123
Authority: WO
Inventors: 凌亚
Original assignee: 凌亚
Priority date: 2020-11-11
Filing date: 2021-11-05
Publication date: 2022-05-19
Also published as: CN112591136A

Abstract

Provided is a clamp for an aerospace testing machine, comprising a bottom plate (1) and a mounting plate (2) welded to an outer wall on one side of the bottom plate (1); a servo motor (3) is connected to an outer wall at the top part of the mounting plate (2) by means of a bolt; a sliding groove (4) is provided in an outer wall at the top part of the bottom plate (1) in the length direction, and a two-way screw (5) is connected to an inner wall on one side of the sliding groove (4) by means of a bearing; one end of the two-way screw (5) extends to an outer wall on one side of the bottom plate (1), and one end of the two-way screw (5) is connected to an output shaft of the servo motor (3) by means of a shaft coupling; two sliding blocks (6) are slidably mounted within the sliding groove (4), and clamping plates (7) are welded onto outer walls at the top part of the two sliding blocks (6); support structures are provided on outer walls of two ends of the top part of the bottom plate (1); and the support structures each comprise two connecting plates (9) and two fixing plates (12), and rotary rods (10) are connected to outer walls on opposite sides of the two connecting plates (9) by means of bearings. The clamp is easy and convenient to fix and operate, and the clamping plates (7) are prevented from damaging a testing machine; meanwhile, an anti-skid protrusion may prevent the testing machine from sliding off, and thus improving the fixing effect.

Description

A fixture for aerospace testing machine

technical field

The invention relates to the technical field of testing machines, in particular to a fixture for aerospace testing machines.

Background technique

Aviation refers to the navigation activities of manned or unmanned aircraft in the earth's atmosphere. Aviation must have the air medium and the lift to overcome the gravity of the aircraft itself. Most aircraft must also have the power required to generate relative air movement. Aerospace refers to the navigation activities of manned or unmanned spacecraft outside the earth's atmosphere. Also known as space flight or cosmic voyage, the realization of spaceflight must enable the spacecraft to overcome or get rid of the gravity of the earth. If it wants to fly out of the solar system, it must also get rid of the gravity of the sun. The spacecraft launched from the surface of the earth, orbiting the earth, leaving the earth and flying out of the solar system. The minimum required velocities are called the first, second and third cosmic velocities respectively. They are the three characteristic velocities required for spaceflight. The famous Chinese scientist Qian Xuesen believes that human flight activities can be divided into three stages, namely aviation, spaceflight and spaceflight. Aerospace, he believes that aviation is active in the atmosphere, aerospace is to fly out of the earth's atmosphere to operate in the solar system, and aerospace is to fly out of the solar system to sail in the vast and rootless universe. Aerospace is different from aviation. In the extremely high vacuum space, it flies in a motion similar to that of natural celestial bodies. However, the launch and recovery of spacecraft must pass through the atmosphere, which creates an inevitable connection between aerospace. Especially the space shuttle that landed horizontally and the aerospace plane that took off and landed horizontally in research. Their take-off and landing processes are very similar to those of airplanes, combining the characteristics of aviation and aerospace. The term aerospace contains not only the science necessary for aerospace activities, but also various technologies involved in the development of aerospace vehicles.

When developing an aerospace vehicle, it is necessary to use the testing machine to conduct various tests to ensure the stability and safety of the aerospace vehicle. When using the testing machine for testing, it is necessary to use a fixture to hold the testing machine. The existing clamping device cannot clamp the testing machine well, and the clamping effect is not good. In addition, the existing clamping device is easy to cause damage to the testing machine, which affects the test results of the testing machine.

SUMMARY OF THE INVENTION

Based on the technical problems existing in the background art, the present invention proposes a fixture for an aerospace test machine.

A fixture for an aerospace testing machine proposed by the present invention includes a bottom plate and a mounting plate welded on one side outer wall of the bottom plate, the top outer wall of the mounting plate is connected with a servo motor by bolts, and the top outer wall of the bottom plate is along the length direction. There is a "T" shaped chute, the inner wall of one side of the chute is connected with a bidirectional screw through a bearing, one end of the bidirectional screw extends to the outer wall of one side of the bottom plate, and one end of the bidirectional screw is connected to the servo motor through a coupling The output shaft is connected, two sliders are slidably installed in the chute, clamping plates are welded on the outer walls of the tops of the two sliders, and support structures are provided on the outer walls of both ends of the top of the bottom plate. The structure includes two connecting plates and two fixing plates. A rotating rod is connected to the outer wall on the opposite side of the two connecting plates through a bearing, and a telescopic rod is rotatably connected to the outer wall of the rotating rod. The two fixing plates are respectively welded to The outer wall of one side of the clamping plate and the outer wall of the opposite side of the two fixed plates are connected with a rotating rod through a bearing, and the top end of the telescopic rod is rotatably connected to the outer wall of the rotating rod.

Preferably, threaded holes are opened on the outer walls of the two opposite sides of the sliders, and both ends of the bidirectional screw are screwed into the threaded holes respectively.

Preferably, rubber pads are adhered to the outer walls on the opposite sides of the two clamping plates, and anti-skid protrusions are provided on the outer walls on the opposite sides of the two rubber pads at equal distances.

Preferably, the bottom ends of the four connecting plates are respectively welded to the outer walls of the two ends of the top of the bottom plate.

Preferably, the telescopic rod includes a sleeve and a connecting rod slidably sleeved in the sleeve, and the outer wall of the sleeve is screwed with fastening bolts, and the fastening bolts form a tight fit with the connecting rod.

Preferably, the servo motor is connected with a switch through a wire, and the switch is connected with a power cord.

The beneficial effects of the present invention are:

1. Equipped with a servo motor and a bidirectional screw. The rotation of the output shaft of the servo motor drives the rotation of the bidirectional screw, which in turn drives the two sliders to move, and the sliders drive the two clamping plates to move, thereby fixing the testing machine. The fixing operation is simple and convenient. Improved fixation effect;

2. There are rubber pads on the outer wall of the opposite side of the two clamping plates, and the rubber pads are provided with anti-skid protrusions distributed at equal distances. When the clamping plates clamp the testing machine, the rubber pads can buffer the testing machine. , to prevent the clamping plate from causing damage to the testing machine, and at the same time, the anti-slip bumps can prevent the testing machine from slipping and improve the fixing effect.

Description of drawings

1 is a schematic cross-sectional structure diagram of a fixture for an aerospace testing machine proposed by the present invention;

FIG. 2 is a schematic top view structure diagram of a clamping plate of a fixture for an aerospace testing machine proposed by the present invention;

FIG. 3 is an enlarged schematic view of the structure of A in FIG. 1 of the present invention.

In the picture: 1 base plate, 2 mounting plate, 3 servo motor, 4 chute, 5 bidirectional screw, 6 sliding block, 7 clamping plate, 8 rubber pad, 9 connecting plate, 10 rotating rod, 11 telescopic rod, 12 fixed plate , 13 rotary lever.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments.

Embodiment 1, referring to Figures 1-3, a fixture for an aerospace testing machine, comprising a base plate 1 and a mounting plate 2 welded on one side outer wall of the base plate 1, the top outer wall of the mounting plate 2 is connected with a servo motor by bolts. 3. A "T"-shaped chute 4 is opened on the top outer wall of the bottom plate 1 along the length direction, and a bidirectional screw 5 is connected to the inner wall of one side of the chute 4 through a bearing, and one end of the bidirectional screw 5 extends to the bottom plate 1 on the outer wall of one side, and one end of the bidirectional screw 5 is connected with the output shaft of the servo motor 3 through a coupling, and two sliders 6 are slidably installed in the chute 4, and the two sliders 6 are on the outer wall of the opposite side. Both are provided with threaded holes, and the two ends of the bidirectional screw 5 are screwed into the threaded holes respectively, and clamping plates 7 are welded on the outer walls of the tops of the two sliding blocks 6, so that the fixing operation is simple and the fixing effect is improved at the same time. Rubber pads 8 are glued on the outer wall of the opposite side of the clamping plate 7, and the outer walls of the two rubber pads 8 are provided with equidistantly distributed anti-skid protrusions to prevent the clamping plate from causing damage to the testing machine. At the same time, the anti-slip bumps can prevent the testing machine from sliding down. The outer walls of both ends of the top of the bottom plate 1 are provided with support structures. The support structures include two connecting plates 9 and two fixing plates 12. The four connecting plates 9 The bottom ends are welded to the outer walls of the two ends of the top of the bottom plate 1 respectively, the outer walls on the opposite sides of the two connecting plates 9 are connected with rotating rods 10 through bearings, and the outer walls of the rotating rods 10 are rotatably connected with telescopic rods 11. The rod 11 includes a sleeve and a connecting rod slidably sleeved in the sleeve, and the outer wall of the sleeve is screwed with fastening bolts, the fastening bolts form a tight fit with the connecting rod, and the two fixing plates 12 are welded to the clamps respectively. A rotating rod 13 is connected to the outer wall of one side of the holding plate 7 and the outer wall of the opposite side of the two fixed plates 12 through bearings. The top of the telescopic rod 11 is rotatably connected to the outer wall of the rotating rod 13, and the servo motor 3 is connected by wires There is a switch, and the switch is connected to a power cord.

The rotation of the output shaft of the servo motor 3 drives the two-way screw 5 to rotate, which in turn drives the two sliders 6 to move, and the sliders 6 drive the two clamping plates 7 to move, thereby fixing the testing machine. There is a rubber pad 8 on it, and the rubber pad 8 is provided with anti-skid protrusions distributed at equal distances. When the clamping plate 7 clamps the testing machine, the rubber pad 8 can buffer the testing machine and prevent the clamping plate 7 from being clamped. damage to the testing machine.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. The equivalent replacement or change of the inventive concept thereof shall be included within the protection scope of the present invention.

Claims

A fixture for an aerospace testing machine, comprising a bottom plate (1) and a mounting plate (2) welded on one side outer wall of the bottom plate (1), characterized in that the top outer wall of the mounting plate (2) is connected by bolts with a The servo motor (3), the top outer wall of the bottom plate (1) is provided with a "T"-shaped structure chute (4) along the length direction, and the inner wall of the chute (4) is connected with a bidirectional screw ( 5), one end of the two-way screw (5) extends to the outer wall of one side of the bottom plate (1), and one end of the two-way screw (5) is connected to the output shaft of the servo motor (3) through a coupling, and the chute (4) Two sliding blocks (6) are slidably installed inside, clamping plates (7) are welded on the top outer walls of the two sliding blocks (6), and support structures are provided on the outer walls at both ends of the top of the bottom plate (1). , the support structure includes two connecting plates (9) and two fixing plates (12), and a rotating rod (10) is connected to the outer wall on the opposite side of the two connecting plates (9) through a bearing, and the rotating rod ( 10) A telescopic rod (11) is rotatably connected to the outer wall, the two fixing plates (12) are respectively welded to the outer wall on one side of the clamping plate (7), and the two fixing plates (12) pass through the outer wall on the opposite side. The bearing is connected with a rotating rod (13), and the top end of the telescopic rod (11) is rotatably connected to the outer wall of the rotating rod (13).
A fixture for an aerospace testing machine according to claim 1, characterized in that threaded holes are formed on the outer walls of the two opposite sides of the two sliding blocks (6), and two ends of the bidirectional screw (5) are screwed respectively. Connected to the threaded hole.
A fixture for an aerospace testing machine according to claim 1, characterized in that, rubber pads (8) are adhered to the outer walls of the opposite sides of the two clamping plates (7), and the two rubber pads are (8) Anti-skid protrusions are arranged on the outer wall of the opposite side at equal distances.
A kind of clamp for aerospace testing machine according to claim 1, is characterized in that, four described connecting plates (9) bottom ends are respectively welded on the outer walls of both ends of the bottom plate (1) top.
A fixture for an aerospace testing machine according to claim 1, characterized in that the telescopic rod (11) comprises a sleeve and a connecting rod slidably sleeved in the sleeve, and the outer wall of the sleeve is screwed with a fastening rod. Fastening bolts, and the fastening bolts form a tight fit with the connecting rod.
The fixture for an aerospace testing machine according to claim 1, wherein the servo motor (3) is connected with a switch through a wire, and the switch is connected with a power cord.