Mechanical self-adaptive assembly interface

Abstract

The invention discloses a mechanical self-adaptive assembly interface, and belongs to the technical field of spacecrafts, the mechanical self-adaptive assembly interface comprises a first connecting rod, a second connecting rod, a connecting rod mechanism, a guide rod and a pressing mechanism, the connecting rod mechanism comprises a first bottom plate, a second bottom plate, a shape memory alloy spring, a first connecting rod and a second connecting rod; the first connecting rod is connected with the connecting rod mechanism through a bolt, the second connecting rod is connected with the guide rod through a bolt, the pressing mechanism is connected between the second connecting rod and the guide rod in series, a shape memory alloy spring of the connecting rod mechanism is in a contraction state when the self-adaptive connector works in a locking mode, and the second connecting rod is perpendicular to the axis of the self-adaptive connector. The boss plane of the second bottom plate coincides with the boss plane of the first bottom plate, the bottom face of the second bottom plate coincides with the bottom face of the pressing plate, and the self-adaptive connector is in a locked rotating state. The mechanical self-adaptive assembly interface is high in tolerance during assembly, rapid self-adaptive assembly can be realized, and the assembly difficulty is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of spacecraft, and in particular relates to a mechanical adaptive assembly interface. Background Art

[0002] Spacecraft are an important means for mankind to achieve space exploration. With the development of science and technology, mankind has an increasingly urgent demand for large space structures such as large space communication antennas and space solar power stations. However, due to issues such as the thrust of launch vehicles, it is difficult for large space structures to meet the demand with a single launch. Therefore, multiple launches in modules and in-situ manufacturing and on-orbit assembly have become important ways to manufacture large space structures. In view of the problems of poor tolerance and high assembly difficulty of existing on-orbit assembly interfaces, the present invention discloses a mechanical adaptive assembly interface that can realize rapid adaptive assembly of structural parts on-orbit and effectively reduce the difficulty of assembly.

[0003] The above information disclosed in this Background section is only for enhancement of understanding of the background of the invention and therefore it may contain information that does not form the prior art that is already known to a person of ordinary skill in the art. Summary of the invention

[0004] Aiming at the tolerance assembly problem in the assembly process of the basic structural parts of large space structures, the present invention discloses a mechanical adaptive assembly interface, which belongs to the field of spacecraft on-orbit service technology. The present invention discloses a mechanical adaptive assembly interface comprising a first connecting rod, a second connecting rod, a connecting rod mechanism, a guide rod and a clamping mechanism, wherein the connecting rod mechanism comprises a first base plate, a second base plate, a shape memory alloy spring, a first connecting rod and a second connecting rod, the first connecting rod and the connecting rod mechanism and the second connecting rod and the guide rod are respectively connected by bolts, the clamping mechanism is connected in series between the second connecting rod and the guide rod, the shape memory alloy spring of the connecting rod mechanism is in a contracted state when the adaptive interface is locked, the second connecting rod is perpendicular to the axis of the adaptive interface, the boss plane of the second base plate coincides with the boss plane of the first base plate and the bottom surface of the second base plate coincides with the bottom surface of the pressure plate, and the adaptive interface is in a locked state. The mechanical adaptive assembly interface of the present invention has a strong tolerance during assembly, can realize rapid adaptive assembly, and reduce the difficulty of assembly.

[0005] The objective of the present invention is achieved through the following technical solution: a mechanical adaptive assembly interface comprises:

[0006] a first connecting rod;

[0007] A connecting rod mechanism is provided on the first connecting rod, and the connecting rod mechanism comprises:

[0008] A first bottom plate is arranged on the first connecting rod and is provided with a boss plane for limiting position and an axis diameter for positioning.

[0009] The second bottom plate is spaced a certain distance from the first bottom plate and is provided with a boss plane for limiting and a cylindrical surface for guiding,

[0010] A first connecting rod, one end of which is disposed on the first bottom plate and can rotate around a fixed end rotating shaft,

[0011] A second connecting rod, one end of which is arranged on the first connecting rod, and the other end of which is arranged on the second bottom plate. Both ends of the second connecting rod are hinged and can rotate around a fixed end rotating shaft.

[0012] a shape memory alloy spring, one end of which is arranged on the first bottom plate, and the other end of which is arranged on the second bottom plate;

[0013] a second connecting rod;

[0014] A guide rod, which is arranged on the second connecting rod;

[0015] A clamping mechanism, which is connected in series between the guide rod and the second connecting rod, comprises:

[0016] A pressure plate is arranged on the guide rod and is coaxial with the guide rod. The pressure plate can slide along the axis of the guide rod.

[0017] A compression spring, one end of which is arranged on the pressure plate, and the other end of which is arranged on the second connecting rod.

[0018] The connecting rod group composed of the first connecting rod and the second connecting rod in the connecting rod mechanism is evenly distributed in multiple groups along the circumferential direction of the first base plate and the second base plate. The relatively rotating part in the adaptive interface adopts the form of rod-thrust bearing-rod, and adopts a parent-child lock as a rotating shaft, and an angular contact ball bearing is added between the rod and the rotating shaft to reduce the friction force of the relative rotation between the rod and the rotating shaft.

[0019] The cross-sectional profile of the inner containing surface of the guide rod perpendicular to the axis corresponds to the distribution shape of the connecting rod group. The inner containing surface is a plurality of groups of paraboloids evenly distributed circumferentially along the axis of the guide rod. At the same time, a positioning shaft hole is provided at one assembly end of the guide rod to cooperate with the positioning shaft diameter of the first base plate, and a guide hole is provided at the fixed end to cooperate with the pressure plate.

[0020] The clamping mechanism presses the pressing plate onto the guide rod under the action of the clamping spring, and the pressing plate presses the second bottom plate to ensure that the boss surface of the second bottom plate is in effective contact with the boss surface of the first bottom plate, that is, the connecting rod mechanism is in a locked state.

[0021] The second base plate of the connecting rod mechanism can move along the axial direction of the adaptive interface under the action of the shape memory alloy spring. The shape memory alloy spring is a two-way shape memory alloy spring. In the heated and stretched state, the distance between the second base plate and the first base plate is the largest, the distance between the ball end of the first connecting rod and the axis of the adaptive interface is the smallest, the radial envelope size of the connecting rod mechanism is the smallest, and the connecting rod mechanism is in the expanded state at this time; the shape memory alloy spring returns to its original length when not heated, the distance between the second base plate and the first base plate is the smallest, the distance between the ball end of the first connecting rod and the axis of the adaptive interface is the largest, the radial envelope size of the connecting rod mechanism is the largest, and at the same time, the second connecting rod is perpendicular to the axis of the adaptive interface, the connecting rod mechanism is at the dead point of the mechanism, and the adaptive interface is in a locked state.

[0022] The adaptive interface heats the shape memory alloy spring before assembly to put the connecting rod mechanism in an expanded state, pushes the connecting rod mechanism into the guide rod along the axial direction of the guide rod according to the contour of the guide rod, and releases the heating state of the shape memory alloy spring. After the second base plate contacts the pressure plate, the connecting rod mechanism continues to be pushed into the guide rod. Under the action of the pressure plate and the shape memory alloy spring, the second base plate moves along its own axis toward the first base plate. The radial envelope size of the connecting rod mechanism gradually increases, and the ball head end of the first connecting rod slides along the parabola of the guide rod. Under the guidance of the inner containing surface of the guide rod, the connecting rod mechanism gradually transitions to a locked state to connect the first connecting rod with the second connecting rod.

[0023] When the adaptive interface is in a locked state, the shape memory alloy spring heats up, and the shape memory alloy spring stretches to push the second base plate away from the first base plate, thereby releasing the locked state of the connecting rod mechanism. At this time, the connecting rod mechanism is pulled out of the guide rod along the axial direction of the guide rod, thereby releasing the locked state of the adaptive interface and separating the first connecting rod from the second connecting rod.

[0024] One end of the connecting rod mechanism of the adaptive interface is connected to the guide rod, and the other end can be connected to the first connecting rod or the first base plate of another group of connecting rod mechanisms, that is, the rod-adaptive interface-rod or rod-adaptive interface-adaptive interface-rod form.

[0025] Compared with the prior art, the present invention has the following advantages: a mechanical adaptive assembly interface of the present invention has a strong tolerance during assembly, can realize rapid adaptive assembly, and effectively reduce the difficulty of assembly. The connecting rod mechanism has low requirements for its own position accuracy during assembly, and does not require precise alignment. It only needs to insert the connecting rod mechanism into the guide rod along the guide rod contour and then release it. The connecting rod mechanism can realize automatic centering and positioning during the insertion process, realize rapid and reliable assembly, and the operation is simple and fast. The design of the second connecting rod of the connecting rod mechanism being perpendicular to the axis of the connecting rod mechanism can realize structural self-locking, and ensure the structural stability of the adaptive interface after assembly. The clamping mechanism can ensure the axial position accuracy of the second base plate after assembly, and provide convenience for subsequent disassembly. If the shape memory alloy spring is heated in the locked state of the adaptive interface, the second base plate will be pushed away from the first base plate, the self-locking state of the connecting rod mechanism will be released, and the connecting rod mechanism can be pulled out along the axial direction of the guide rod, so that the first connecting rod and the second connecting rod can be separated to achieve disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] By reading the detailed description of the preferred specific embodiments below, various other advantages and benefits of the present invention will become clear to those of ordinary skill in the art. The drawings in the specification are only for the purpose of illustrating the preferred embodiments and are not considered to be limitations of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative work. Moreover, the same reference numerals are used to represent the same components throughout the drawings.

[0027] In the attached picture:

[0028] Figure 1 An adaptive interface diagram provided for one embodiment of the present invention;

[0029] Figure 2 A diagram of an assembly of a first connecting rod of an adaptive interface provided by another embodiment of the present invention;

[0030] Figure 3 A cross-sectional view of a second connecting rod assembly of an adaptive interface provided by another embodiment of the present invention;

[0031] Figure 4 A locking state diagram of a connecting rod mechanism provided for another embodiment of the present invention;

[0032] Figure 5 A diagram of an expanded state of a connecting rod mechanism provided by another embodiment of the present invention;

[0033] Figure 6 A dual-head adaptive interface diagram provided for another embodiment of the present invention;

[0034] Figure 7 An adaptive interface separation state diagram provided for another embodiment of the present invention;

[0035] Figure 8 An adaptive interface assembly state diagram provided for another embodiment of the present invention;

[0036] Fig. 9 A cross-sectional view of an adaptive interface assembly state provided by another embodiment of the present invention;

[0037] Fig.10 A cross-sectional view of a locked state of an adaptive interface provided by another embodiment of the present invention;

[0038] Fig.11 A cross-sectional view of an adaptive interface in unlocked state provided by another embodiment of the present invention.

[0039] The numbers in the accompanying drawings are explained as follows: 1. first connecting rod; 2. guide rod; 3. second connecting rod; 4. first base plate; 5. first connecting rod; 6. second connecting rod; 7. second base plate; 8. shape memory alloy spring; 9. pressure plate; 10. compression spring.

[0040] The present invention is further explained below in conjunction with the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0041] The specific embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the specific embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0042] It should be noted that certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that technicians may use different nouns to refer to the same component. This specification and claims do not use the difference in nouns as a way to distinguish components, but use the difference in the functions of the components as the distinction criterion. As mentioned throughout the specification and claims, "including" or "comprising" is an open term, so it should be interpreted as "including but not limited to". The subsequent description of the specification is a preferred embodiment of the present invention, but the description is for the purpose of the general principles of the specification and is not used to limit the scope of the present invention. The scope of protection of the present invention shall be determined by the attached claims.

[0043] To facilitate understanding of the embodiments of the present invention, the following will be further explained with reference to the accompanying drawings using specific embodiments as examples, but the drawings do not constitute a limitation on the embodiments of the present invention. Parts of the present invention not described in detail belong to the common knowledge of those skilled in the art.

[0044] For a better understanding, Figure 1-11 As shown, a mechanical adaptive assembly interface includes:

[0045] A first connecting rod 1;

[0046] A connecting rod mechanism is provided on the first connecting rod 1, and the connecting rod mechanism comprises:

[0047] The first bottom plate 4 is arranged on the first connecting rod 1 and is provided with a boss plane for limiting position and an axis diameter for positioning.

[0048] The second bottom plate 7 is spaced a certain distance from the first bottom plate 4 and is provided with a boss plane for limiting and a cylindrical surface for guiding.

[0049] The first connecting rod 5 has one end disposed on the first bottom plate 4 and can rotate around the fixed end rotation axis of the first connecting rod 5.

[0050] The second connecting rod 6 has one end disposed on the first connecting rod 5 and the other end disposed on the second bottom plate 7. Both ends of the second connecting rod 6 are hinged and can rotate around the fixed end rotating shaft of the second connecting rod 6.

[0051] a shape memory alloy spring 8, one end of which is arranged on the first bottom plate 4, and the other end of which is arranged on the second bottom plate 7;

[0052] A second connecting rod 3;

[0053] A guide rod 2, which is arranged on the second connecting rod 3;

[0054] The clamping mechanism is connected in series between the guide rod 2 and the second connecting rod 3, and includes:

[0055] The pressure plate 9 is arranged on the guide rod 2 and is coaxial with the guide rod 2. The pressure plate 9 can slide along the axis direction of the guide rod 2.

[0056] A compression spring 10 has one end disposed on the compression plate 9 and the other end disposed on the second connecting rod 3 .

[0057] The connecting rod group consisting of the first connecting rod 5 and the second connecting rod 6 in the connecting rod mechanism is evenly distributed in three groups along the circumferential direction of the first bottom plate 4 and the second bottom plate 7. The relatively rotating part in the adaptive interface adopts the form of rod-thrust bearing-rod, and adopts a parent-child lock as a rotating shaft, and an angular contact ball bearing is added between the rod and the rotating shaft to reduce the friction force of the relative rotation between the rod and the rotating shaft.

[0058] The clamping mechanism presses the pressing plate 9 onto the guide rod 2, and the pressing plate 9 presses the second bottom plate 7 to ensure that the boss surface of the second bottom plate 7 is in effective contact with the boss surface of the first bottom plate 4, that is, the adaptive interface is in a locked state.

[0059] The cross-sectional profile of the inner containing surface of the guide rod 2 perpendicular to the axis corresponds to the distribution shape of the connecting rod group. The inner containing surface is three groups of paraboloids evenly distributed circumferentially along the axis of the guide rod 2. At the same time, a positioning shaft hole is provided at one end of the guide rod assembly to cooperate with the positioning shaft diameter of the first base plate 4, and a guide hole is provided at the fixed end to cooperate with the pressure plate 9.

[0060] The second base plate 7 of the connecting rod mechanism can move along the axis direction of the adaptive interface under the action of the shape memory alloy spring 8, wherein the shape memory alloy spring 8 is a two-way shape memory alloy spring, and in the heated and stretched state, the distance between the second base plate 7 and the first base plate 4 is the largest, the distance between the ball head end of the first connecting rod 5 and the axis of the adaptive interface is the smallest, the radial envelope size of the connecting rod mechanism is the smallest, and the connecting rod mechanism is in the expanded state at this time; the shape memory alloy spring 8 returns to its original length when not heated, the distance between the second base plate 7 and the first base plate 4 is the smallest, the distance between the ball head end of the first connecting rod 5 and the axis of the adaptive interface is the largest, the radial envelope size of the connecting rod mechanism is the largest, and at the same time, the second connecting rod 6 is perpendicular to the axis of the adaptive interface, the connecting rod mechanism is at the dead point of the mechanism, and the adaptive interface is in a locked state.

[0061] One end of the connecting rod mechanism of the adaptive interface is connected to the guide rod 2, and the other end can be connected to the first connecting rod 1 or the first base plate of another group of connecting rod mechanisms, that is, the rod-adaptive interface-rod or rod-adaptive interface-adaptive interface-rod form.

[0062] The four states of the adaptive interface are described in detail as follows:

[0063] State 1: Separation state, such as Figure 7 When the adaptive interface is in the separated state, the shape memory alloy spring 8 is in the contracted state, the connecting rod mechanism is in the locked state under the action of the shape memory alloy spring 8, the pressing plate 9 is pressed against the guide rod 2 under the action of the pressing spring 10, and the first connecting rod 1 and the second connecting rod 3 are in the separated state. Figure 7 shown.

[0064] State 2: Assembly state, such as Figure 8 , Fig. 9The adaptive interface heats the shape memory alloy spring 8 before assembly to fully expand it, as shown in FIG. Figure 8 As shown, the connecting rod mechanism is in an expanded state, and the connecting rod mechanism is pushed into the guide rod 2 along the axial direction of the guide rod 2 according to the contour of the guide rod 2, as shown in FIG. Fig. 9 As shown, the heating state of the shape memory alloy spring 8 is released, and after the bottom surface of the second bottom plate 7 contacts the bottom surface of the pressure plate 9, the connecting rod mechanism continues to be pushed into the guide rod 2, and the second bottom plate 7 will move toward the first bottom plate 4 along its own axial direction. The radial envelope size of the connecting rod mechanism gradually increases, and the ball head end of the first connecting rod 5 slides along the parabola of the guide rod 2. Under the guidance of the inner containing surface of the guide rod 2, the connecting rod mechanism gradually transitions to a locked state, connecting the first connecting rod 1 with the second connecting rod 3.

[0065] State 3: Locking state, such as Fig.10 As shown. The adaptive interface is in a locked state, the shape memory alloy spring 8 is in a contracted state, the connecting rod mechanism is in a locked state under the action of the shape memory alloy spring 8, the pressure plate 9 is pressed against the guide rod 2 under the action of the pressure spring 10, the second connecting rod 6 is perpendicular to the axis of the adaptive interface, the boss plane of the second bottom plate 7 coincides with the boss plane of the first bottom plate 4, and the first connecting rod 1 and the second connecting rod 3 are in a locked state, as shown. Fig.10 shown.

[0066] State 4: Unlocked state, such as Fig.11 The adaptive interface heats the shape memory alloy spring 8 in the locked state, and the shape memory alloy spring 8 will extend and push the second bottom plate 7 away from the first bottom plate 4, releasing the locking state of the connecting rod mechanism. Fig.11 As shown, at this time, the connecting rod mechanism is pulled out of the guide rod 2 along the axial direction of the guide rod 2, as shown in FIG. Fig. 9 As shown, the locking state of the adaptive interface can be released, and the first connecting rod 1 and the second connecting rod 3 are pulled in opposite directions, and the heating state of the shape memory alloy spring 8 is released, and the state can be restored to the state shown in FIG. Figure 7 The separation state shown.

[0067] A mechanical adaptive assembly interface of the present invention has a strong tolerance during assembly, can realize fast adaptive assembly, and effectively reduce the difficulty of assembly. The connecting rod mechanism has low requirements for its own position accuracy during assembly, and does not require precise alignment. It only needs to insert the connecting rod mechanism into the guide rod along the contour of the guide rod and then release it. The connecting rod mechanism can realize automatic centering and positioning during the insertion process, realize fast and reliable assembly, and the operation is simple and fast. The design of the second connecting rod of the connecting rod mechanism being perpendicular to the axis of the connecting rod mechanism can realize structural self-locking, and ensure the structural stability of the adaptive interface after assembly. The clamping mechanism can ensure the axial position accuracy of the second base plate after assembly, and provide convenience for subsequent disassembly. If the shape memory alloy spring is heated in the locked state of the adaptive interface, the second base plate will be pushed away from the first base plate, the self-locking state of the connecting rod mechanism will be released, and the connecting rod mechanism can be pulled out along the axial direction of the guide rod, so that the first connecting rod and the second connecting rod can be separated to achieve disassembly.

[0068] Although the embodiments of the present invention are described above in conjunction with the accompanying drawings, the present invention is not limited to the above specific embodiments and application fields, and the above specific embodiments are only illustrative and instructive, rather than restrictive. A person of ordinary skill in the art can also make many forms under the guidance of this specification and without departing from the scope of protection of the claims of the present invention, all of which belong to the protection of the present invention.

Claims

1. A mechanical adaptive assembly interface, characterized in that: include: a first connecting rod; A connecting rod mechanism is provided on the first connecting rod, and the connecting rod mechanism comprises: A first bottom plate is arranged on the first connecting rod and is provided with a boss plane for limiting position and an axis diameter for positioning. The second bottom plate is spaced a certain distance from the first bottom plate and is provided with a boss plane for limiting and a cylindrical surface for guiding, A first connecting rod, one end of which is disposed on the first bottom plate and can rotate around a fixed end rotating shaft, A second connecting rod, one end of which is arranged on the first connecting rod, and the other end of which is arranged on the second bottom plate. Both ends of the second connecting rod are hinged and can rotate around a fixed end rotating shaft. a shape memory alloy spring, one end of which is arranged on the first bottom plate, and the other end of which is arranged on the second bottom plate; a second connecting rod; A guide rod, which is arranged on the second connecting rod; A clamping mechanism, which is connected in series between the guide rod and the second connecting rod, comprises: A pressure plate is arranged on the guide rod and is coaxial with the guide rod. The pressure plate can slide along the axis of the guide rod. A compression spring, one end of which is arranged on the pressure plate, and the other end of which is arranged on the second connecting rod.

2. The connecting rod mechanism according to claim 1, characterized in that: The connecting rod mechanism comprises a first base plate, a second base plate, a first connecting rod, a second connecting rod, and a shape memory alloy spring, wherein a connecting rod group consisting of the first connecting rod and the second connecting rod is evenly distributed in a plurality of groups along the circumferential direction of the first base plate and the second base plate.

3. The connecting rod mechanism according to claim 2, characterized in that: The second base plate of the connecting rod mechanism can move along the axis direction of the adaptive interface under the action of the shape memory alloy spring, wherein the shape memory alloy spring is a two-way shape memory alloy spring, and in a heated and stretched state, the distance between the second base plate and the first base plate is the largest, the distance between the ball end of the first connecting rod and the axis of the adaptive interface is the smallest, the radial envelope size of the connecting rod mechanism is the smallest, and the connecting rod mechanism is in an expanded state at this time; the shape memory alloy spring returns to its original length when not heated, the distance between the second base plate and the first base plate is the smallest, the distance between the ball end of the first connecting rod and the axis of the adaptive interface is the largest, the radial envelope size of the connecting rod mechanism is the largest, and the connecting rod mechanism is in a locked state at this time.

4. The connecting rod mechanism according to claim 3, characterized in that: When the connecting rod mechanism is in a locked state, the second connecting rod is perpendicular to the axis of the adaptive interface, and the force applied to the second connecting rod is along the rod direction, that is, perpendicular to the axis of the adaptive interface, and the connecting rod mechanism is at a dead point of the mechanism.

5. The clamping mechanism according to claim 1, characterized in that: The clamping mechanism presses the pressing plate onto the guide rod under the action of the clamping spring, and the pressing plate presses the second bottom plate to ensure that the boss surface of the second bottom plate is in effective contact with the boss surface of the first bottom plate, that is, the connecting rod mechanism is in a locked state.

6. The guide rod according to claim 1, characterized in that: The cross-sectional profile of the inner containing surface of the guide rod perpendicular to its axis corresponds to the distribution shape of the connecting rod group. The inner containing surface is a plurality of groups of paraboloids evenly distributed circumferentially along the axis of the guide rod. At the same time, a positioning shaft hole is provided at one assembly end of the guide rod to cooperate with the positioning shaft diameter of the first base plate, and a guide hole is provided at the fixed end of the guide rod to cooperate with the pressure plate.

7. The adaptive interface according to claim 1, characterized in that: The adaptive interface heats the shape memory alloy spring before assembly to put the connecting rod mechanism in an expanded state, pushes the connecting rod mechanism into the guide rod along the axial direction of the guide rod according to the contour of the guide rod, and releases the heating state of the shape memory alloy spring. After the second base plate contacts the pressure plate, the connecting rod mechanism continues to be pushed into the guide rod. Under the action of the pressure plate and the shape memory alloy spring, the second base plate moves along its own axis toward the first base plate. The radial envelope size of the connecting rod mechanism gradually increases, and the ball head end of the first connecting rod slides along the parabola of the guide rod. Under the guidance of the inner containing surface of the guide rod, the connecting rod mechanism gradually transitions to a locked state to connect the first connecting rod with the second connecting rod.

8. The adaptive interface according to claim 1, characterized in that: When the adaptive interface is in a locked state, the shape memory alloy spring heats up, and the shape memory alloy spring stretches to push the second base plate away from the first base plate, thereby releasing the locked state of the connecting rod mechanism. At this time, the connecting rod mechanism is pulled out of the guide rod along the axial direction of the guide rod, thereby releasing the locked state of the adaptive interface and separating the first connecting rod from the second connecting rod.

9. The adaptive interface according to claim 1, characterized in that: One end of the connecting rod mechanism of the adaptive interface is connected to the guide rod, and the other end can be connected to the first connecting rod or the first base plate of another group of connecting rod mechanisms, that is, the form of rod-adaptive interface-rod or rod-adaptive interface-adaptive interface-rod.

10. The adaptive interface according to claim 1, characterized in that: The relatively rotating part in the adaptive interface adopts the form of rod-thrust bearing-rod, and adopts a parent-child lock as the rotating shaft. An angular contact ball bearing is added between the rod and the rotating shaft to reduce the friction force of relative rotation between the rod and the rotating shaft.

Images