CN114531004A

CN114531004A - Memory alloy motor module, assembly system and assembly method

Info

Publication number: CN114531004A
Application number: CN202210056934.1A
Authority: CN
Inventors: 高雨浩; 傅立峰; 肖剑
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2022-05-24
Also published as: CN112865478A; CN112865478B

Abstract

The embodiment of the application discloses a memory alloy motor module, an assembly system and an assembly method, wherein the memory alloy motor module comprises: the rotor is provided with a first metal part, and the first metal part is provided with a first clamping jaw; the stator is provided with a second metal part, and the second metal part is provided with a second clamping jaw; one end of the first memory alloy wire is connected with the first clamping jaw, and the other end of the first memory alloy wire is connected with the second clamping jaw; the first memory alloy wire in the first jaw and the second jaw is collinear with a connecting wire between the first jaw and the second jaw. Therefore, the direction of the tensile force applied to the first memory alloy wire in the working process is along the direction of the memory alloy wires in the first clamping jaw and the second clamping jaw, so that the memory alloy wire is prevented from being bent and stressed, and the service life of the memory alloy wire is prolonged.

Description

Memory alloy motor module, assembly system and assembly method

The present application is a divisional application, the original application having application number 201911176154.5, the original application date being 2019, 11 and 26, the entire content of the original application being incorporated by reference in the present application.

Technical Field

The embodiment of the application relates to the technical field of terminals, in particular to a memory alloy motor module, an assembly system and an assembly method.

Background

The memory alloy motor has the advantages of small height and size, low cost, no magnetic field interference, no need of an additional sensor, realization of high-precision positioning, larger control tension and the like, and is gradually applied to a camera module of terminal equipment to realize the functions of automatic focusing and optical anti-shaking.

Wherein, memory alloy motor includes: the motor module to and the memory alloy line of setting on the motor module, the motor module includes: the rotor comprises 1 rotor and 1 stator, wherein the rotor is connected with the stator through a memory alloy wire.

The key link in the assembly process of the motor module is to hang the memory alloy wire on the steel sheet. Fig. 1 is a schematic structural diagram of a wire hanging mechanism in the prior art. As shown in fig. 1, a wire hanging mechanism in the prior art includes: boss 003, line wheel 002 and line pincers 005, when hanging the line to steel sheet 001, memory alloy line 004 is drawn forth from line wheel 002 to line pincers 005, and boss 003 is ejecting to make memory alloy line 004 crooked to hang memory alloy line 004 on first jack catch 010 and the second jack catch 020 of steel sheet 001, wherein, the line between the inside memory alloy line 004 of first jack catch 010 and second jack catch 020 and first jack catch 010 and second jack catch 020 is not the collineation.

During the use, first jack catch 010 and second jack catch 020 set up respectively on motor module's active cell and stator, can produce relative motion between first jack catch 010 and the second jack catch 020 for the atress is buckled in first jack catch 010 and second jack catch 020 department to the memory alloy wire, influences the life of this memory alloy wire.

Disclosure of Invention

The embodiment of the application provides a memory alloy motor module, an assembly system and an assembly method, which solve the problem that the memory alloy motor module occupies too much space due to the fact that space needs to be reserved when the memory alloy motor module is wired.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions: in a first aspect of the embodiments of the present application, a memory alloy motor module is provided, which includes: the rotor is provided with a first metal part, and the first metal part is provided with a first clamping jaw; the stator is provided with a second metal part, and the second metal part is provided with a second clamping jaw; a first memory alloy wire passing through the first jaw and the second jaw and fixed by the first jaw and the second jaw; wherein a portion of the first memory alloy wire fixed by the first jaw and the second jaw is collinear with a line connecting the first jaw and the second jaw. Therefore, the direction of the memory alloy wires in the first clamping jaw and the second clamping jaw is kept to be collinear with the connecting line of the first clamping jaw and the second clamping jaw, so that the tensile force direction of the first memory alloy wire in the working process is along the trend of the memory alloy wires in the first clamping jaw and the second clamping jaw, the memory alloy wire is prevented from being bent and stressed, and the service life of the memory alloy wire is prolonged.

In an optional implementation manner, a third jaw is further disposed on the first metal part, and a fourth jaw is further disposed on the second metal part; the first clamping jaw, the second clamping jaw, the third clamping jaw and the fourth clamping jaw are enclosed to form a quadrangle, the first clamping jaw and the second clamping jaw are arranged in a diagonal manner, and the third clamping jaw and the fourth clamping jaw are arranged in a diagonal manner; the third jaw and the fourth jaw are connected through a second memory alloy wire, wherein the part of the second memory alloy wire fixed by the third jaw and the fourth jaw is collinear with a connecting line between the third jaw and the fourth jaw. From this, through setting up the jack catch that two sets of diagonal angles were arranged, when assembling to the motor module on, make the jack catch atress more even. The direction of the memory alloy wire inside the third jaw and the fourth jaw is kept collinear with the connecting line of the third jaw and the fourth jaw, so that the direction of the tensile force applied to the second memory alloy wire in the working process is along the trend of the memory alloy wire inside the third jaw and the fourth jaw, the memory alloy wire is prevented from being bent and stressed, and the service life of the memory alloy wire is prolonged.

In an alternative implementation, the first memory alloy wire and the second memory alloy wire are arranged to intersect. Therefore, the stress of the memory alloy wire is more uniform, and the control precision of the motor module can be improved.

In a second aspect of the embodiments of the present application, there is provided an assembly system of a memory alloy motor module, including: the hanging wire mechanism, the hanging wire mechanism includes: the wire clamp is used for clamping a first memory alloy wire and hanging the first memory alloy wire on a first clamping jaw and a second clamping jaw of a metal part to be assembled, wherein the length of the first memory alloy wire is larger than the distance between the first clamping jaw and the second clamping jaw, and the ejector pin is arranged between the wire clamps; the driving mechanism is used for moving the thimble along a first direction and limiting the first memory alloy wire, so that the part of the first memory alloy wire, which is contacted with the first clamping jaw and the second clamping jaw, is collinear with the connecting line between the first clamping jaw and the second clamping jaw; the bending mechanism is used for bending the first clamping jaw and the second clamping jaw so that the first clamping jaw and the second clamping jaw fix the first memory alloy wire; and the assembling mechanism is used for assembling the metal part to be assembled on the motor module so as to obtain the memory alloy motor module.

In an alternative implementation, the metal parts to be assembled further include: the first clamping jaw, the second clamping jaw, the third clamping jaw and the fourth clamping jaw are enclosed to form a quadrangle, the first clamping jaw and the second clamping jaw are arranged in a diagonal manner, and the third clamping jaw and the fourth clamping jaw are arranged in a diagonal manner; the wire clamp is also used for clamping a second memory alloy wire and hanging the second memory alloy wire on a third jaw and a fourth jaw of a metal part to be assembled, wherein the length of the second memory alloy wire is greater than the distance between the third jaw and the fourth jaw; the driving mechanism is further used for moving the thimble along a first direction to limit the second memory alloy wire, so that the part of the second memory alloy wire, which is in contact with the third jaw and the fourth jaw, is collinear with a connecting line between the third jaw and the fourth jaw; the bending mechanism is further used for bending the third jaw and the fourth jaw, so that the third jaw and the fourth jaw fix the second memory alloy wire.

In an optional implementation manner, the thimble includes: the first thimble, the second thimble and the third thimble are positioned between the first thimble and the third thimble, wherein a connecting line of the first thimble and the second thimble is collinear with a connecting line of the first clamping jaw and the second clamping jaw, the first memory alloy wire is hung on the second thimble, and the first thimble and the third thimble are used for limiting the first memory alloy wire so that the memory alloy wires in the first clamping jaw and the second clamping jaw are collinear with the connecting line between the first clamping jaw and the second clamping jaw; the driving mechanism is used for moving the second thimble along a first direction. Therefore, the first thimble, the second thimble and the third thimble are matched, the memory alloy wire in the relaxed state can be limited, the bending posture of the memory alloy wire in the relaxed state is controlled, and the direction of the memory alloy wire in the clamping jaw is the same as the connecting direction of the clamping jaw. The direction of the tensile force applied to the second memory alloy wire in the working process is along the direction of the memory alloy wires in the third jaw and the fourth jaw, so that the memory alloy wires are prevented from being bent and stressed, and the service life of the memory alloy wires is prolonged.

In an optional implementation manner, a limiting groove is formed in the second thimble, and the first memory alloy wire is located in the limiting groove. Therefore, the thimble is provided with the limiting groove, so that the movement of the memory alloy wire in the non-wire-hanging direction is limited, the bending and loosening postures of the silk thread can be accurately controlled, and the success rate of hanging the wire to the clamping jaw is improved.

In an alternative implementation, the wire plier includes: the first wire clamp and the second wire clamp are arranged oppositely, wherein the first wire clamp is arranged close to the first metal part, and the first wire clamp is used for hanging wires on the first clamping jaw and the third clamping jaw; the second wire clamp is arranged close to the second metal part and used for hanging wires on the second clamping jaw and the fourth clamping jaw; when the wire pliers hang a wire on a first memory alloy wire, if the first wire pliers is higher than the second wire pliers in the first direction, the thimble is arranged close to the first wire pliers. The thimble is arranged close to the first wire clamp or the second wire clamp, so that the thimble can be prevented from being superposed with the crossing position of the first alloy wire and the second alloy wire when being arranged between the first wire clamp and the second wire clamp and interfering with the memory alloy wire at the crossing position. In this embodiment, when the wire clipper first hangs the first memory alloy wire, and the first wire clipper is higher than the second wire clipper in the first direction, the thimble is arranged close to the higher first wire clipper, and when the thimble moves in the first direction, the first memory alloy wire protrudes in the first direction at the thimble position.

In an alternative implementation, the metal parts to be assembled comprise at least: the assembling mechanism is used for connecting the first metal part with the rotor of the motor module and connecting the second metal part with the stator of the motor module, and the assembling mechanism is used for connecting the first metal part with the rotor of the motor module and connecting the second metal part with the stator of the motor module so that the rotor is connected with the stator through the memory alloy wire.

In a third aspect of the embodiments of the present application, a method for assembling a memory alloy motor module is provided, the method including: the wire clamp clamps a first memory alloy wire and hangs the first memory alloy wire on a first clamping jaw and a second clamping jaw of a metal part to be assembled, wherein the length of the first memory alloy wire is greater than the distance between the first clamping jaw and the second clamping jaw, and a thimble is arranged between the wire clamps; moving the thimble along a first direction to limit the first memory alloy wire, so that the part of the first memory alloy wire, which is contacted with the first clamping jaw and the second clamping jaw, is collinear with the connecting line between the first clamping jaw and the second clamping jaw; bending the first jaw and the second jaw so that the first jaw and the second jaw fix the first memory alloy wire; and assembling the metal component to be assembled on a motor module to obtain the memory alloy motor module.

In an alternative implementation, the metal parts to be assembled further include: the first clamping jaw, the second clamping jaw, the third clamping jaw and the fourth clamping jaw are enclosed to form a quadrangle, the first clamping jaw and the second clamping jaw are arranged in a diagonal manner, and the third clamping jaw and the fourth clamping jaw are arranged in a diagonal manner; before the assembling the metal components to be assembled on the motor module, the method further comprises the following steps: the wire clamp clamps a second memory alloy wire and hangs the second memory alloy wire on a third clamping jaw and a fourth clamping jaw of a metal part to be assembled, wherein the length of the second memory alloy wire is greater than the distance between the third clamping jaw and the fourth clamping jaw, and a thimble is arranged between the wire clamps; moving the thimble along a first direction, and limiting the second memory alloy wire so that the part of the second memory alloy wire, which is contacted with the third jaw and the fourth jaw, is collinear with a connecting line between the third jaw and the fourth jaw; and bending the third jaw and the fourth jaw so that the third jaw and the fourth jaw fix the second memory alloy wire.

In an optional implementation, the thimble includes: the connecting line of the first thimble and the second thimble is collinear with the connecting line of the first clamping jaw and the second clamping jaw, the first memory alloy wire is hung on the second thimble, and the first thimble and the third thimble are used for limiting the first memory alloy wire so that the part of the first memory alloy wire, which is contacted with the first clamping jaw and the second clamping jaw, is collinear with the connecting line between the first clamping jaw and the second clamping jaw; the moving the thimble in the first direction includes: and moving the second thimble along the first direction.

In an alternative implementation, the metal parts to be assembled comprise at least: the memory alloy motor module comprises a first metal part used for being connected with a rotor of the motor module, and a second metal part used for being connected with a stator of the motor module, wherein the first clamping jaws are arranged on the first metal part, the second clamping jaws are arranged on the second metal part, the metal parts to be assembled are assembled on the motor module to obtain the memory alloy motor module, and the memory alloy motor module comprises: and connecting the first metal part with a rotor of the motor module, and connecting the second metal part with a stator of the motor module, so that the rotor is connected with the stator through the memory alloy wire.

Drawings

FIG. 1 is a schematic diagram of a wire-hanging mechanism of a memory alloy motor module in the prior art;

FIG. 2 is a schematic structural diagram of a memory alloy motor module according to an embodiment of the present disclosure;

FIG. 3 is a flowchart illustrating an assembly method of a memory alloy motor module according to an embodiment of the present disclosure;

FIGS. 3a, 3b and 3c are schematic structural diagrams of products obtained after the steps in FIG. 3 are performed;

FIG. 4 is a flow chart illustrating another method for assembling a memory alloy motor module according to an embodiment of the present disclosure;

FIGS. 5a, 5b, and 5c are schematic views of the product structure obtained after the steps in FIG. 4 are performed;

FIG. 6 is a flowchart illustrating another method of assembling a memory alloy motor module according to an embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of a wire plier according to an embodiment of the application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more clear, the present application will be further described in detail with reference to the accompanying drawings.

In the following, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

Further, in the present application, directional terms such as "upper" and "lower" are defined with respect to a schematically-disposed orientation of components in the drawings, and it is to be understood that these directional terms are relative concepts that are used for descriptive and clarity purposes and that will vary accordingly with respect to the orientation in which the components are disposed in the drawings.

Firstly, a memory alloy motor module is introduced:

as shown in fig. 2, the memory alloy motor 01 may include: a mover 10, a stator 20, and a plurality of memory alloy wires 30 connected between the mover 10 and the stator 20. The memory alloy wires 30 are connected by jaws fixed on the stator 20 and jaws fixed on the mover 10, which can provide mechanical and electrical connections to the memory alloy wires 30.

The memory alloy wire 30 may be made of a shape memory material.

Shape memory materials are materials that have a shape memory effect through thermoelastic and martensitic phase transformations and their inversions. The shape memory material recovers a high-temperature phase shape when heated and also recovers a low-temperature phase shape when cooled.

The memory alloy wire 30 provided by the embodiment of the present application is made of the shape memory material, and when the memory alloy wire 30 is not energized, the memory alloy wire 30 enters the martensite phase at a low temperature. When the memory alloy wire 30 is energized, heat is generated, and at high temperature, the memory alloy wire 30 enters an austenite phase, which causes deformation that causes the memory alloy wire 30 to contract. By applying current to the memory alloy wire 30, the memory alloy wire 30 can be reduced in length.

The material of the memory alloy wire 30 is not limited in the embodiments of the present application, and in one implementation of the present application, the memory alloy wire 30 is made of a nitinol alloy material, for example.

The degree of position control may be maximized as much as possible by adjusting the material composition of the memory alloy wire 30, or pre-treating the memory alloy wire 30 such that the memory alloy wire 30 provides a phase change during normal operation over a range of temperatures above the expected ambient temperature. When the wires become taut, they move the mover 10 relative to the stator 20 to an at least approximately centered position relative to the range of movement.

The memory alloy motor 01 described above can be used in a camera module of a handheld electronic device, such as a miniature camera of a camera and a mobile phone, to achieve focusing, zooming, or optical anti-shake.

The image pickup module further includes, for example: an image sensor and a lens assembly (not shown in the figures).

The stator 20 of the memory alloy motor 01 may be fixed on a base, on which, for example, an image sensor is further mounted, and the mover 10, on which, for example, a lens assembly is mounted. The memory alloy motor 01 can adjust the position of the lens to a desired position relative to the stator 20 in response to optical measurements made by the lens assembly from the output of the image sensor.

The camera assembly provided with the memory alloy motor 01 is operated to collect images from the image sensor and record the focus of the images at different positions on the image sensor, calculate the current error in the position of the lens assembly according to the focus situation, and adjust the position of the lens assembly to a desired position in proper alignment with the image sensor through the memory alloy wire 30.

As shown in fig. 2, the stator 20 includes a base 200, and disposed on the base: the mover 10 is located on a base of the stator 20, and a set of diagonal corners of the mover 10 are provided with a first notch and a second notch, wherein the first fixed block 2001 is disposed at the first notch of the mover 10, the second fixed block 2002 is disposed at the second notch of the mover 10, a gap is left between the first fixed block 2001 and the first notch, and a gap is left between the second fixed block 2002 and the second notch.

Referring next to fig. 2, wherein the memory alloy motor 01 includes four sides, each of the sides is provided with a set of memory alloy wires crossing each other, and one end of each of the memory alloy wires is connected to the mover 10 and the other end is connected to the stator 20.

Taking a side surface of the memory alloy motor 01 as an example, the side surface is composed of a side surface of the first fixed block 2001 of the stator and a side surface of the mover 10, wherein the side surface of the mover 10 is provided with a first steel sheet 101 and a second steel sheet 102. The side face of the first fixing block 2001 is provided with a third steel sheet 201, the first steel sheet 101 is provided with a first clamping jaw 1011, the second steel sheet 102 is provided with a third clamping jaw 1021, and the third steel sheet 201 is provided with a second clamping jaw 2012 and a fourth clamping jaw 2011.

The connecting lines of the first claw 1011, the second claw 2012, the third claw 1021 and the fourth claw 2011 enclose a rectangle, and the first claw 1011, the second claw 2012, the third claw 1021 and the fourth claw 2011 are positioned at four corners of the rectangle.

The first claw 1011 and the second claw 2012 are located at opposite angles, the third claw 1021 and the fourth claw 2011 are located at opposite angles, the first claw 1011 and the second claw 2012 are connected through a first memory alloy wire 301, and the third claw 1021 and the fourth claw 2011 are connected through a second memory alloy wire 302.

The first memory alloy wire 301 inside the first jaw 1011 and the second jaw 2012 is collinear with a connecting line between the first jaw 1011 and the second jaw 2012.

The second memory alloy wire 302 inside the third jaw 1021 and the fourth jaw 2011 is collinear with the line between the third jaw 1021 and the fourth jaw 2011.

The memory alloy motor module that this application embodiment provided through the jack catch that sets up two sets of diagonal angles and arrange, when assembling to the motor module on for the jack catch atress is more even.

The part of the first memory alloy wire fixed by the first clamping jaw and the second clamping jaw is collinear with a connecting line between the first clamping jaw and the second clamping jaw, so that the tensile force direction of the first memory alloy wire in work is along the trend of the memory alloy wires in the first clamping jaw and the second clamping jaw, the memory alloy wire is prevented from being bent and stressed, and the service life of the memory alloy wire is prolonged.

The part of the second memory alloy wire fixed by the third jaw and the fourth jaw is collinear with a connecting line between the third jaw and the fourth jaw, so that the tensile direction of the second memory alloy wire in work is along the trend of the memory alloy wires in the third jaw and the fourth jaw, the memory alloy wire is prevented from being bent and stressed, and the service life of the memory alloy wire is prolonged.

The embodiment of the present application provides an assembly system of a memory alloy motor module, which at least includes: the thread hanging mechanism 100 as shown in fig. 7, the thread hanging mechanism 100 includes: the wire clamp comprises a driving mechanism, wire clamps and ejector pins arranged between the wire clamps.

Wherein the wire clamp can clamp and release the memory alloy wire and can move along the Y-axis direction shown in the figure.

As shown in fig. 7, the wire plier includes: a first wire plier 501 and a second wire plier 502. The first wire clamp 501 is used for clamping a first end of the first memory alloy wire 301, and the second wire clamp 502 is used for clamping a second end of the first memory alloy wire 301.

The first wire clamp 501, the second wire clamp 502 and the thimble are disposed on one robot arm 70, for example, and the thimble 60 is located between the first wire clamp 501 and the second wire clamp 502. The first wire plier 501 is connected to the robot arm 70, for example, by a first drive means, and the second wire plier 502 is connected to the robot arm 70, for example, by a second drive means.

The first driving device is used for driving the first wire plier 501 to move along the Y-axis direction, and the second driving device is used for driving the second wire plier 502 to move along the Y-axis direction.

When the first wire clamp 501 and the second wire clamp 502 are moved closer to each other in the Y-axis direction by the first driving device and the second driving device, the distance between the first wire clamp 501 and the second wire clamp 502 is shortened, and the first memory alloy wire 301 is loosened.

Alternatively, when the first wire clipper 501 and the second wire clipper 502 are moved away from each other in the Y-axis direction by the first driving device and the second driving device, the distance between the first wire clipper 501 and the second wire clipper 502 is increased, and the first memory alloy wire 301 is tightened.

The driving mechanism is used for moving the thimble along a first direction to limit the first memory alloy wire, so that the memory alloy wires in the first jaw 1011 and the second jaw 2012 are collinear with a connecting line between the first jaw 1011 and the second jaw 2012.

Referring next to FIG. 7, the ejector pin is coupled to the robotic arm 70, such as by a drive mechanism. The thimble includes: first thimble 601, second thimble 602 and third thimble 603, wherein, second thimble 602 is located between first thimble 601 and third thimble 603, the line direction of first thimble 601 with second thimble 602 with the line collineation of first jack 1011 with second jack catch 2012.

The driving mechanism is used for driving the second thimble 602 to move along the X-axis direction, so as to limit the loosened memory alloy wire. The first direction is, for example, the negative X-axis direction in fig. 7 and 3 b.

The moving the thimble 60 to limit the memory alloy wire, so that the memory alloy wire inside the first jaw 1011 and the second jaw 2012 is collinear with a connecting line between the first jaw 1011 and the second jaw 2012, including: under the driving of the driving mechanism, the second thimble 602 is moved to limit the loosened wire, so that the part of the first memory alloy wire, which is in contact with the first jaw 1011 and the second jaw 2012, is collinear with the connecting line of the first jaw 1011 and the second jaw 2012.

For example, a limit groove 6021 is formed in the second thimble 602, and the memory alloy wire is limited after being clamped, so that the memory alloy wire is prevented from being loosened along the Z-axis direction to influence the wire hanging success rate.

In the process of loosening the silk thread, the second thimble 602 is ejected in the negative X direction, so that the first memory alloy wire 301 is clamped in the limit groove 6021, and the first memory alloy wire is tightened as the second thimble 602 is ejected in the negative X direction, meanwhile, the first thimble 601 limits the silk thread between the first jaw 1011 and the first thimble 601 to be ejected in the negative X direction, and the third thimble 603 limits the silk thread between the second jaw 2012 and the third thimble 603 to be ejected in the negative X direction.

Therefore, the connecting line direction of the first thimble 601 and the second thimble 602 is collinear with the connecting line of the first jaw 1011 and the second jaw 2012, the bending attitude control of the silk thread can be realized by adjusting the distance between the first wire clamp 501 and the second wire clamp 502 and controlling the position of the thimble 60, and the limit of the first memory alloy wire 301 is realized, so that the memory alloy wires in the first jaw 1011 and the second jaw 2012 are collinear with the connecting line between the first jaw 1011 and the second jaw 2012.

By arranging the limit groove 6021 on the thimble 60, the bending and loosening postures of the memory alloy wire can be accurately controlled, so that the movement of the memory alloy wire in the Z-axis direction is limited, and the success rate of wire hanging to a clamping jaw is improved.

The memory alloy wires inside the first claw 1011 and the second claw 2012 are collinear with a connecting line between the first claw 1011 and the second claw 2012. The tensile direction of the memory alloy wire in the working process is along the trend of the memory alloy wire in the clamping jaw, so that the first memory alloy wire 301 is prevented from being bent and stressed, and the service life of the first memory alloy wire 301 is prolonged.

Further, the metal parts to be assembled 40 further include: third jack catch 1021 and fourth jack catch 2011, first jack catch 1011 the second jack catch 2012 the third jack catch with the fourth jack catch encloses and establishes into the quadrangle, just first jack catch 1011 with second jack catch 2012 is the diagonal and arranges, third jack catch 1021 with fourth jack catch 2011 is the diagonal and arranges.

The driving mechanism is further configured to move the thimble along the first direction to limit the second memory alloy wire, so that a portion of the second memory alloy wire 302 contacting the third jaw 1021 and the fourth jaw 2011 is collinear with a connection line between the third jaw 1021 and the fourth jaw 2011.

The direction of the second memory alloy wire 302 inside the third jaw 1021 and the fourth jaw 2011 is kept collinear with the connecting line of the third jaw 1021 and the fourth jaw 2011, so that the direction of the tensile force applied to the second memory alloy wire 302 in the working process is along the trend of the memory alloy wires inside the third jaw 1021 and the fourth jaw 2011, the bending stress of the second memory alloy wire 302 is avoided, and the service life of the second memory alloy wire 302 is prolonged.

The first memory alloy wire 301 and the second memory alloy wire 302 are arranged to intersect.

The position of the thimble 60 is not limited in the embodiment of the present application. The thimble 60 is disposed near the first wire clamp 501 or near the second wire clamp 502. This prevents the thimble 60 from overlapping the intersection of the first alloy wire and the second alloy wire when it is disposed between the first wire clamp 501 and the second wire clamp 502 and interfering with the memory alloy wire at the intersection.

In the above steps, the first alloy wire is firstly hung on the first jaw 1011 and the second jaw 2012, and then the second alloy wire is hung on the third jaw 1021 and the fourth jaw 2011.

In the process, the first wire plier 501 is close to the first jaw 1011, the second wire plier 502 is close to the second jaw 2012, the height of the first jaw 1011 in the negative direction of the X axis is higher than the height of the second jaw 2012 in the negative direction of the X axis, and the connecting direction of the first wire plier 501 and the second wire plier 502 is collinear with the connecting line of the first jaw 1011 and the second jaw 2012, so that the height of the first wire plier 501 in the negative direction of the X axis is higher than the height of the second wire plier 502 in the negative direction of the X axis, so that the height of the first memory alloy wire 301 close to the first wire plier 501 in the negative direction of the X axis is higher than the height of the second memory alloy wire 302 close to the first wire plier 501.

At this time, the thimble 60 may be disposed close to the first wire clamp 501, when the loose memory alloy wire is limited by the thimble 60, the thimble 60 moves in the negative direction of the X axis, and the first memory alloy wire 301 protrudes in the negative direction of the X axis at the position of the thimble 60, and since the first memory alloy wire 301 and the second memory alloy wire 302 are disposed to intersect with each other, the protruding position is further away from the second alloy wire 302, and when the second memory alloy wire 302 is hung, the interference between the protruding positions of the second memory alloy wire 302 and the first memory alloy wire 301 can be avoided.

Therefore, in the above process, the first memory alloy wire 301 is hung on the first clamping jaw 1011 and the second clamping jaw 2012, then the second memory alloy wire 302 is hung on the third clamping jaw 1021 and the fourth clamping jaw 2011, and the thimble 60 is arranged close to the first wire clamp 501, so that the thimble 60 and the first memory alloy wire 301 can be prevented from interfering with each other when the second memory alloy wire 302 is hung.

In an implementation manner of the present application, the second alloy wire may be firstly hung on the third jaw 1021 and the fourth jaw 2011, and then the first alloy wire may be hung on the first jaw 1011 and the second jaw 2012.

In the process, the first wire clamp 501 is close to the third jaw 1021, the second wire clamp 502 is close to the fourth jaw 2011, and the height of the third jaw 1021 in the first direction, that is, the height of the X-axis negative direction is lower than the height of the fourth jaw 2011 in the X-axis direction, and the direction of the connection line of the first wire clamp 501 and the second wire clamp 502 is collinear with the connection line of the third jaw 1021 and the fourth jaw 2011, so that the height of the first wire clamp 501 in the X-axis direction is lower than the height of the second wire clamp 502 in the X-axis direction, so that the height of the first memory alloy wire 301 close to the first wire clamp 501 in the X-axis direction is lower than the height of the second memory alloy wire 302 close to the first wire clamp 501.

At this time, the thimble 60 may be disposed close to the second wire holder 502, and when the thimble 60 is used to limit the position of the loose memory alloy wire, the thimble 60 moves in the negative X-axis direction, and the second memory alloy wire 302 protrudes in the negative X-axis direction at the position of the thimble 60, and since the first memory alloy wire 301 and the second memory alloy wire 302 are disposed to intersect with each other, the protruding position is further away from the first memory alloy wire 301, and when the first memory alloy wire 301 is hung, the interference between the protruding positions of the first memory alloy wire 301 and the second memory alloy wire 302 can be avoided.

Therefore, in the above process, the second memory alloy wire 302 is hung on the third jaw 1021 and the fourth jaw 2011, then the first memory alloy wire 301 is hung on the first jaw 1011 and the second jaw 2012, and the thimble 60 is arranged close to the second wire clamp 502, so that the thimble 60 and the second memory alloy wire 302 can be prevented from interfering when the first memory alloy wire 301 is hung.

According to the assembling method of the memory alloy motor module, the ejector pin 60 is arranged at one side in a deviation mode, so that the bending and loosening postures of the silk threads can be accurately controlled, the avoidance of the second memory alloy wire hanging ejector pin 60 on the first memory alloy wire is realized, and the failure rate of wire hanging is reduced.

The assembly system of the motor module further comprises: and the bending mechanism is used for bending the first claw 1011 and the second claw 2012 so that the first claw 1011 and the second claw 2012 fix the first memory alloy wire.

The bending mechanism is further configured to bend the third jaw 1021 and the fourth jaw 2011, so that the third jaw 1021 and the fourth jaw 2011 fix the second memory alloy wire.

The assembly system of the motor module further comprises: and the assembling mechanism is used for assembling the metal component 40 to be assembled on the motor module so as to obtain the memory alloy motor module.

For example, metal parts are disposed on the mover 10 and the stator 20 of the motor module, and the first metal part and the metal part on the mover 10 may be welded and connected together by laser welding, and the second metal part and the metal part on the stator 20 may be welded and connected together, so that the mover 10 is connected with the stator 20 through the memory alloy wire 30.

Wherein the first metal member includes: a first steel plate 101 and a second steel plate 102 for mounting on the mover 10.

The second metal member includes: a third steel sheet 201 for mounting on the stator 20.

According to the assembling method of the memory alloy motor module, before the first steel sheet 101, the second steel sheet 102 and the third steel sheet 201 are assembled on the motor module, the memory alloy wires are hung on the first steel sheet 101, the second steel sheet 102 and the third steel sheet 201, an operation space does not need to be reserved beside the motor module, the occupied space of the memory alloy motor module is reduced, and the miniaturization of the camera module is facilitated.

Based on the assembly system of the motor module, an embodiment of the present application provides an assembly method of a memory alloy motor module, as shown in fig. 3, the method includes:

s101, as shown in FIG. 3a, a wire clamp clamps a first memory alloy wire 301, and the first memory alloy wire 301 is hung on a first claw 1011 and a second claw 2012 of a metal part 40 to be assembled, wherein the length of the first memory alloy wire 301 is greater than the distance between the first claw 1011 and the second claw 2012, and a thimble 60 is arranged between the wire clamps.

When the first memory alloy wire 301 is hung on the first claw 1011 and the second claw 2012 of the metal part 40 to be assembled, in an implementation manner of the present application, the first memory alloy wire 301 may be hung on the first claw 1011 and the second claw 2012 by adjusting the position of the metal part 40 to be assembled.

In another implementation of the present application, the position of the wire clamp may be adjusted to hang the first memory alloy wire 301 on the first jaw 1011 and the second jaw 2012.

Wherein the metal member 40 to be assembled is, for example, the same shape as one side surface of the motor module. The arrangement between the first claw 1011 and the second claw 2012 on the metal member 40 to be assembled is the same as that after it is assembled to the motor module. The length of the first memory alloy wire 301 is greater than the distance between the first clamping jaw 1011 and the second clamping jaw 2012, so that the memory alloy wire between the first clamping jaw 1011 and the second clamping jaw 2012 can be kept loose, the spatial degree of freedom of the motor module is increased, and the first memory alloy wire 301 is prevented from being damaged when a rotor and a stator of the motor module move relatively.

S102, as shown in fig. 3b, moving the thimble 60 along a first direction to limit the first memory alloy wire 301, so that a portion of the first memory alloy wire contacting the first jaw 1011 and the second jaw 2012 is collinear with a connecting line between the first jaw 1011 and the second jaw 2012.

S103, as shown in fig. 3c, bending the first jaw 1011 and the second jaw 2012 so that the first jaw 1011 and the second jaw 2012 fix the first memory alloy wire 301.

As shown in fig. 4, the method further comprises:

and step S1031, as shown in FIG. 5a, the wire pliers clamp the second memory alloy wire 302, and hang the second memory alloy wire 302 on the third clamping jaw 1021 and the fourth clamping jaw 2011 of the metal part 40 to be assembled, wherein the length of the second memory alloy wire 301 is greater than the distance between the third clamping jaw 1021 and the fourth clamping jaw 2011, and a thimble 60 is arranged between the wire pliers.

S1032, as shown in fig. 5b, the thimble 60 is moved along the first direction to limit the second memory alloy wire 302, so that a portion of the second memory alloy wire 302 contacting the third jaw 1021 and the fourth jaw 2011 is collinear with a connecting line between the third jaw 1021 and the fourth jaw 2011.

S1033, as shown in fig. 5c, the third claw 1021 and the fourth claw 2011 are bent, so that the second memory alloy wire 302 is fixed by the third claw 1021 and the fourth claw 2011.

The specific wire hanging process of the second memory alloy wire 302 can refer to the above steps S101 to S103, which are not described herein again.

S104, as shown in FIG. 2, assembling the metal component to be assembled on a motor module to obtain the memory alloy motor module.

Wherein the metal parts to be assembled comprise at least: a first metal member for coupling with the mover 10 of the motor module, a second metal member for coupling with the stator 20 of the motor module, and a third metal member for coupling the first metal member and the second metal member.

The embodiment of the present application does not limit the shape, material, and number of the first metal member, the second metal member, and the third metal member. In one implementation of the present application, there are 2 first metal parts and 1 second metal part.

The first metal member and the second metal member may be made of the same material. For example, stainless steel may be used for each.

The first metal member and the second metal member are each in the form of a sheet, for example.

The assembly system of memory alloy motor module still includes: a cutting mechanism for cutting the third metal member and the connecting member of the first metal member and the second metal member to remove the third metal member. As shown in fig. 6, the assembling the metal components to be assembled on a motor module to obtain the memory alloy motor module includes:

s1041, removing the third metal part to separate the first metal part from the second metal part.

Wherein the third metal part and the connecting part between the first metal part and the second metal part may be laser cut so that the third metal part, the first metal part, and the second metal part are separated.

During laser cutting, high-power-density laser beams can be used for irradiating the connecting parts among the third metal part, the first metal part and the second metal part, so that the connecting parts among the third metal part, the first metal part and the second metal part are heated to a vaporization temperature quickly, holes are formed through evaporation, cutting seams with narrow widths are continuously formed in the holes along with movement of the light beams to the material, and the third metal part, the first metal part and the second metal part are separated.

Therefore, the third metal component is removed, so that the interference of the third metal component on the rotor and the stator of the motor module can be avoided.

S1042, connecting the first metal member to the mover 10 of the motor module, and connecting the second metal member to the stator 20 of the motor module, so that the mover 10 is connected to the stator 20 through a memory alloy wire.

Wherein the third metal member includes: a fourth steel sheet 401 for connecting the first steel sheet 101, the second steel sheet 102 and the third steel sheet 201.

The first steel sheet 101, the second steel sheet 102, the third steel sheet 201 and the fourth steel sheet 401 are connected together, and the first steel sheet 101, the second steel sheet 102, the third steel sheet 201 and the fourth steel sheet 401 jointly form a rectangular metal part 40 to be assembled.

The first claw 1011 is arranged on the first steel sheet 101, the second claw 2012 is arranged on the third steel sheet 201, the third claw 1021 is arranged on the second steel sheet 102, and the fourth claw 2011 is arranged on the third steel sheet 201.

The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A memory alloy motor module, comprising:

the rotor is provided with a first metal part, and the first metal part is provided with a first clamping jaw;

the stator is provided with a second metal part, and the second metal part is provided with a second clamping jaw;

a first memory alloy wire passing through the first jaw and the second jaw and fixed by the first jaw and the second jaw; wherein a portion of the first memory alloy wire fixed by the first jaw and the second jaw is collinear with a connecting line between the first jaw and the second jaw;

the stator comprises a base and a fixed block, the fixed block and the rotor are arranged on the same side face of the base, the second metal part is arranged on the fixed block, the fixed block is arranged on the surface of the second metal part and the rotor is arranged on the surface of the first metal part, the first plane is a plane perpendicular to the base, and a gap is reserved between the fixed block and the rotor.

2. The memory alloy motor module as claimed in claim 1, wherein the first metal part is further provided with a third jaw, and the second metal part is further provided with a fourth jaw;

the first clamping jaw, the second clamping jaw, the third clamping jaw and the fourth clamping jaw are enclosed to form a quadrangle, the first clamping jaw and the second clamping jaw are arranged in a diagonal manner, and the third clamping jaw and the fourth clamping jaw are arranged in a diagonal manner;

the third jaw and the fourth jaw are connected through a second memory alloy wire, wherein the part of the second memory alloy wire fixed by the third jaw and the fourth jaw is collinear with a connecting line between the third jaw and the fourth jaw.

3. The memory alloy motor module of claim 2, wherein the first memory alloy wire and the second memory alloy wire are arranged crosswise.

4. A memory alloy motor module according to claim 2 or 3, wherein the quadrilateral is a rectangular structure.

5. The memory alloy motor module as claimed in any one of claims 2 to 4, wherein the second metal member provided with the second jaw and the fourth jaw comprises a first steel sheet and a second steel sheet which are separated, the second jaw is fixed on the first steel sheet, and the fourth jaw is fixed on the second steel sheet.

6. The memory alloy motor module as claimed in any one of claims 1 to 5, wherein a first notch is provided at an edge of the mover, and the fixing block is disposed at the first notch.

7. The memory alloy motor module of claim 6, wherein the memory alloy motor module further comprises a second notch, and the first notch and the second notch are disposed along opposite corners of the mover;

the second gap is also provided with another fixing block.

8. The memory alloy motor module of any one of claims 1-7, wherein an orthographic projection of the mover and the fixed block on the base is located within an edge of the base.

9. The memory alloy motor module as claimed in any one of claims 1 to 8, wherein the mover has a mounting hole for fixing the lens assembly.

10. The memory alloy motor module of any one of claims 1-9, wherein a portion of the first memory alloy wire between the first jaw and the second jaw comprises a curved section.