Suture device and memory alloy motor production line

Abstract

Embodiments of the present application provide a wire hanging device and a shape memory alloy motor production line. The wire hanging device is used to install a wire material on a carrier. The wire hanging device comprises a first wire clamping part, a second wire clamping part and a counterweight mechanism. The first wire clamping part comprises a first upper wire clamp and a first lower wire clamp oppositely arranged along a first direction. The second wire clamping part comprises a second lower wire clamp. The first lower wire clamp and the second lower wire clamp are oppositely arranged along a second direction perpendicular to the first direction. The first upper wire clamp and the first lower wire clamp are used to clamp a first end of the wire material. The counterweight mechanism slides along the first direction to enable the wire material to be carried on the second lower wire clamp and to straighten the wire material between the first wire clamping part and the second wire clamping part. The above technical solution can avoid the memory alloy wire clamped by the wire hanging device from being loose, which is conducive to improving the wire hanging precision, improving the assembly yield and performance yield of the SMA motor.

Description

Technical Field

[0001] This application relates to the field of electronic device manufacturing technology, and more specifically, to a wire hanging device and a shape memory alloy motor production line. Background Technology

[0002] Shape memory alloy (SMA) motors have advantages such as small size, high load capacity, no magnetic field interference, high-precision positioning without additional sensors, and greater control force. They are widely used in camera modules to achieve functions such as autofocus and optical image stabilization.

[0003] SMA motors typically consist of a stator, rotor, multiple steel plates, and shape memory alloy wires fixed to the steel plates. In the assembly process of SMA motors, the shape memory alloy wires are usually clamped by wire clamps and then hung onto the corresponding steel plates. During this hanging process, the shape memory alloy wires held by the clamps may become loose, making it impossible to accurately control the length of the shape memory alloy wires each time they are hung. This results in decreased hanging accuracy, thus affecting the yield and performance of the assembled SMA motor. Summary of the Invention

[0004] This application provides a wire hanging device and a shape memory alloy motor production line, which can prevent the shape memory alloy wire held by the wire hanging device from becoming loose, and is conducive to controlling the length of the shape memory alloy wire each time it is hung, so as to improve the hanging accuracy and thus improve the assembly yield and performance yield of the SMA motor.

[0005] In a first aspect, a wire-hanging device is provided for mounting linear materials on a carrier. The wire-hanging device includes: a first wire clamp, a second wire clamp, and a counterweight mechanism. The first wire clamp includes a first upper wire clamp and a first lower wire clamp, and the second wire clamp includes a second lower wire clamp. The first upper wire clamp and the first lower wire clamp are arranged opposite each other along a first direction, and the first lower wire clamp and the second lower wire clamp are arranged opposite each other along a second direction, which are perpendicular to the first and second directions. A first end of the linear material passes sequentially through the counterweight mechanism and the second wire clamp, extending to the first wire clamp. The first upper wire clamp and the first lower wire clamp are used to clamp the first end. The counterweight mechanism slides along the first direction so that the linear material is supported on the second lower wire clamp and the linear material located between the first and second wire clamps is taut.

[0006] It should be understood that the first direction can refer to the height direction of the hanging device, and the second direction can refer to the length direction of the hanging device.

[0007] In this application, the first wire clamping component uses double wire clamps to hold one end of the linear material for wire pulling and hanging processes. The second wire clamping component uses a single wire clamp, which applies force to the linear material by sliding up and down using a counterweight mechanism, so that the linear material can be supported on the single wire clamp and the linear material between the first and second wire clamping components is kept taut. This helps to prevent slack in the linear material between the first and second wire clamping components, thereby ensuring the consistency of the linear material length each time it is hung, improving hanging accuracy, increasing the assembly yield of the SMA motor, and also helping to improve the performance of the SMA motor in terms of slack resistance, thus improving product performance yield.

[0008] In conjunction with the first aspect, in some implementations of the first aspect, the counterweight mechanism includes a chute and a counterweight wheel. The chute extends along the first direction, and the counterweight wheel is slidably disposed within the chute. The first end extends around the lower wall of the counterweight wheel to the first wire clamping member, so that when the counterweight wheel slides along the extension direction of the chute, the linear material is supported on the second lower wire clamping clamp, and the linear material located between the first wire clamping member and the second wire clamping member is taut.

[0009] In this application, the linear material passes over the lower wall of the counterweight wheel and slides up and down in the groove through the counterweight wheel to apply force to the linear material, thereby enabling the linear material to be supported on the single wire clamp and keeping the linear material between the first wire clamp and the second wire clamp in a taut state.

[0010] In conjunction with the first aspect, in some implementations of the first aspect, when the first upper wire clamp and the first lower wire clamp hold the first end, and the second lower wire clamp carries the linear material, the first lower wire clamp and the second lower wire clamp are at the same height in the first direction.

[0011] In this application, when the first and second wire clamping parts hold the linear material, the heights of the first and second lower wire clamping pliers are made to be flush, so that the linear material held between the first and second wire clamping parts is at the same height. This helps to ensure that the linear material held between the first and second wire clamping parts has a consistent position in the height direction each time the wire is hung, thereby improving the wire hanging accuracy and enhancing the resistance stability and reliability of the SMA motor.

[0012] In conjunction with the first aspect, in some implementations of the first aspect, the wire hanging device further includes wire clamping member limiting posts, which include a first limiting post and a second limiting post. The first limiting post and the second limiting post are arranged opposite to each other along the second direction. The first limiting post passes through the ends of the first upper wire clamp and the first lower wire clamp, and the second limiting post passes through the end of the second lower wire clamp. The linear material located between the first wire clamp and the second wire clamp is tangent to the first limiting post and the second limiting post in a third direction. The third direction, the first direction, and the second direction are perpendicular to any two of them.

[0013] It should be understood that the third direction can refer to the width direction of the hanging device.

[0014] In one possible implementation, the extension directions of the first limiting post and the second limiting post are parallel to the first direction.

[0015] In this application, by setting the aforementioned wire clamping member limiting posts, the linear material clamped between the first and second wire clamping members can be positioned at the same location tangent to the first and second limiting posts in the third direction. This helps ensure that the direction and position of the linear material clamped between the first and second wire clamping members are consistent each time a wire is attached, thereby improving the resistance stability and reliability of the SMA motor.

[0016] In conjunction with the first aspect, in some implementations of the first aspect, the wire-hanging device further includes a wire-topping mechanism located between the first wire-clamping member and the second wire-clamping member. The wire-topping mechanism includes a third limiting post, a fourth limiting post, and a pin. The third limiting post and the fourth limiting post are arranged opposite to each other along the second direction, and the pin is located between the third limiting post and the fourth limiting post. In the third direction, the third limiting post and the fourth limiting post are located on the side of the linear material away from the first limiting post and the second limiting post. The pin moves along the third direction to drive the linear material to move along the third direction.

[0017] In one possible implementation, the extension directions of the third limiting post, the fourth limiting post, and the ejector pin are parallel to the first direction.

[0018] In this application, by setting up the aforementioned top-line mechanism, the ejector pin moves along a third direction, causing the linear material to move along the third direction while simultaneously being tangential to the first and second limiting posts. Therefore, by precisely controlling the length of the linear material held between the first and second clamping members through the top-line mechanism, it is beneficial to ensure the consistency of the linear material length during each wire hanging, thereby improving hanging accuracy, increasing the assembly yield of the SMA motor, and also improving the performance of the SMA motor's slack resistance, thus enhancing product performance and yield.

[0019] In conjunction with the first aspect, in some implementations of the first aspect, the wire hanging device further includes a robotic arm, on which the third limiting post, the fourth limiting post and the ejector pin are disposed.

[0020] In conjunction with the first aspect, in some implementations of the first aspect, the wire-hanging device further includes a wire reel and a wire-leading mechanism, the wire reel being used to mount the coil of linear material and the wire-leading mechanism being used to pull the end of the coil of linear material to the counterweight mechanism.

[0021] In this application, by setting up a wire reel and a wire guide mechanism, it is beneficial to realize automated wire picking and wire guiding, and thus facilitates automated wire hanging.

[0022] In conjunction with the first aspect, in some implementations of the first aspect, the wire hanging device further includes a guiding mechanism disposed on the path of the linear material between the wire reel and the counterweight mechanism, and / or, the guiding mechanism disposed on the path of the linear material between the counterweight mechanism and the second wire clamp; the guiding mechanism is used to prevent the linear material from sagging.

[0023] In this application, by setting a guiding mechanism, it is beneficial to avoid sagging of linear materials, thereby ensuring the stability of stress within the linear materials.

[0024] In a second aspect, a shape memory alloy motor production line is provided, including a wire hanging device as described in any one of the first aspects above, wherein the linear material is a shape memory alloy wire, the carrier is a metal sheet, and the wire hanging device is used to mount the shape memory alloy wire onto the metal sheet.

[0025] The technical effects of the second aspect can be referred to the relevant description of the technical effects in the first aspect above, and will not be repeated here. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application.

[0027] Figure 2 This is a schematic diagram of the structure of a camera module provided in an embodiment of this application.

[0028] Figure 3 yes Figure 2 The diagram shows the exploded structure of the camera module.

[0029] Figure 4 This is a schematic diagram of the structure of an SMA motor provided in an embodiment of this application.

[0030] Figure 5 An exemplary schematic diagram shows the connection state of the shape memory alloy wire and the steel sheet.

[0031] Figure 6 An exemplary diagram is shown showing shape memory alloy wires held by wire clamps 411 and 412 exhibiting different degrees of slack.

[0032] Figure 7 This is a schematic diagram of the structure of a hanging device provided in an embodiment of this application.

[0033] Figure 8 yes Figure 7 A partial top view of the hanging device shown.

[0034] Figure 9 The diagram illustrates the process by which the first clamping member 410 and the second clamping member 420 clamp the linear material 5. Detailed Implementation

[0035] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0036] The terminology used in the following embodiments is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. As used in the specification and appended claims of this application, the singular expressions “a,” “an,” “the,” “the,” “the,” and “this” are intended to also include expressions such as “one or more,” unless the context clearly indicates otherwise. It should also be understood that in the following embodiments of this application, “at least one” and “one or more” refer to one, two, or more than two. The term “and / or” is used to describe the relationship between related objects, indicating that three relationships may exist; for example, A and / or B can indicate: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. The character “ / ” generally indicates that the preceding and following related objects are in an “or” relationship.

[0037] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0038] In the description of the embodiments of this application, the terms "upper," "lower," "left," "right," "inner," "outer," "vertical," and "horizontal," etc., indicate orientations or positional relationships relative to the indicated placement of components in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and not to indicate or imply a specific orientation that the device or component must have, or its construction and operation in a specific orientation. They can change accordingly depending on the orientation of the components in the accompanying drawings, and therefore should not be construed as limiting this application. Furthermore, "vertical" in this application is not strictly vertical, but within the allowable error range. "Parallel" is not strictly parallel, but within the allowable error range.

[0039] First, to facilitate understanding of the shape memory alloy motor production line and hanging device provided in the embodiments of this application, the shape memory alloy motor involved in the embodiments of this application will be introduced below.

[0040] Figure 1 This is a schematic diagram of the structure of an electronic device 100 provided in an embodiment of this application. The electronic device 100 can be an electronic device with camera or photographing functions, such as a mobile phone, tablet computer, television (or smart screen), laptop, camcorder, video recorder, camera, etc. For ease of understanding, this embodiment of the application uses a mobile phone as an example for illustration.

[0041] Electronic device 100 may include a display screen 10 and a housing. The housing may include a bezel and a back cover 20. The bezel may surround the outer periphery of the display screen 10, and the bezel may surround the outer periphery of the back cover 20. There may be a certain gap between the display screen 10 and the back cover 20. The display screen 10 may be arranged parallel to the back cover 20.

[0042] A front-facing camera module (CCM) 110 can be installed on the display screen 10 of the electronic device 100. For example... Figure 1 As shown in the left figure, the front-facing camera module 110 can be mounted on the upper left of the display screen 10. The front-facing camera module 110 can be used for selfies, for example.

[0043] A rear camera module 120 can be mounted on the back cover 20 of the electronic device 100. For example... Figure 1 As shown in the right figure, the rear camera module 120 can be mounted on the upper left side of the back cover 20. The rear camera module 120 can be used, for example, to capture the scene around the electronic device 100.

[0044] It should be understood that Figure 1The installation positions of the front-facing camera module 110 and the rear-facing camera module 120 shown are merely illustrative, and this application does not limit the installation positions of the camera modules. In some other embodiments, the front-facing camera module 110 and the rear-facing camera module 120 may also be installed in other locations on the electronic device 100. For example, the front-facing camera module 110 may be installed in the upper center or upper right of the display screen 10.

[0045] It should be understood that Figure 1 The number of front-facing camera modules 110 and rear-facing camera modules 120 shown is merely illustrative, and this application does not limit the number of camera modules that can be installed. The electronic device 100 may include more or fewer camera modules.

[0046] Figure 2 This is a schematic diagram of the structure of a camera module 200 provided in an embodiment of this application. Figure 3 yes Figure 2 The image shows an exploded view of the camera module 200. The camera module 200 could be, for example, an exploded view of the camera module 200. Figure 1 The front-facing camera module 110 or the rear-facing camera module 120 shown.

[0047] Combination Figure 2 and Figure 3 The camera module 200 may include a camera housing 201, a motor module 202, a circuit board 203, a bracket 206, and an image sensor 207. In one example, the motor module 202 may include a lens array 2022, a shape memory alloy (SMA) motor 205, and a housing for accommodating the lens array 2022 and the SMA motor 205. Figure 2 , Figure 3 (None shown).

[0048] The camera housing 201 can accommodate the SMA motor 205, bracket 206, image sensor 207, etc., within the camera module 200. The lens array 2022 and circuit board 203 can be at least partially located within the camera housing 201. The circuit board 203 can power various electronic components (such as the SMA motor 205 and image sensor 207) within the camera module 200 (e.g., via a drive module mounted on the circuit board 203). Furthermore, the circuit board 203 can also transmit signals from the electronic components within the camera module 200 to the outside of the camera module 200. The image sensor 207 can be mounted on the circuit board 203. The center of the image sensor 207 can be aligned with the optical axis of the lens array 2022.

[0049] The lens array 2022 can project light from the outer periphery of the camera housing 201 onto the image sensor 207. The lens array 2022 can move or rotate within the through-hole 2011 of the camera housing 201 to achieve functions such as autofocus and optical image stabilization (OIS).

[0050] The SMA motor 205 can be used to achieve functions such as autofocus and optical image stabilization. The SMA motor 205 can be mounted on a bracket 206 within the camera module 200. This bracket 206 can be fixed to, for example, the circuit board 203 or the camera housing 201. The bracket 206 can be located between the image sensor 207 and the SMA motor 205. Alternatively, the SMA motor 205 can be fixed, for example, on the side of the lens array 2022 closer to the image sensor 207.

[0051] Figure 4 This is a schematic diagram of the structure of an SMA motor 300 provided in an embodiment of this application. The SMA motor 300 can be, for example, […]. Figure 3 The SMA motor 205 shown is shown.

[0052] The SMA motor 300 may include a stator 310, a mover 320, and multiple shape memory alloy wires 330 connected between the stator 310 and the mover 320. The shape memory alloy wires 330 are connected by claws fixed on the stator 310 and claws fixed on the mover 320.

[0053] The shape memory alloy wire 330 can be made of shape memory alloy material. Shape memory alloy materials retain their original shape below the metal phase transition temperature. When the temperature reaches or exceeds the phase transition temperature, the shape memory alloy material automatically changes to its remembered shape, generating a large restoring force, thus outputting a certain driving force. This is the driving principle utilizing shape memory alloy materials. For example, the shape memory alloy wire 330 can be, but is not limited to, made of nitinol alloy material.

[0054] Specifically, such as Figure 4As shown, the stator 310 may include a base 311 and a fixing block 312, with the fixing block 312 disposed on the base 311. The mover 320 may be disposed on the base 311, with a set of diagonally notches on the mover 320, where the fixing block 312 is disposed. The SMA motor 300 may include four sides, each side consisting of a side of the fixing block 312 and a side of the mover 320. At each side, one end of a steel sheet 340 may be fixedly connected to the side of the fixing block 312, and the other end may be fixedly connected to the side of the mover 320. The shape memory alloy wire 330 may be fixed between the stator 310 and the mover 320 via mechanical and / or electrical connection with the claws on the steel sheet 340.

[0055] For example, the steel sheet 340 may be provided with a first claw 341, a second claw 342, a third claw 343, and a fourth claw 344. The line connecting the first claw 341 and the second claw 342 intersects with the line connecting the third claw 343 and the fourth claw 344. One end of a shape memory alloy wire 330 may be mounted on the first claw 341, and the other end on the second claw 342. One end of another shape memory alloy wire 330 may be mounted on the third claw 343, and the other end on the fourth claw 344.

[0056] It should be understood that the specific structure of the SMA motor 300 described above is merely illustrative and is not intended to limit this application.

[0057] Figure 5 An exemplary schematic diagram illustrates the connection state of the shape memory alloy wire 330 and the steel sheet 340. Wherein, Figure 5 (a) in the diagram is a schematic diagram of the state when the shape memory alloy wire 330 and the steel sheet 340 are not connected. Figure 5 (b) in the diagram is a schematic diagram of the state when the shape memory alloy wire 330 and the steel sheet 340 are connected.

[0058] Combination Figure 5 In (a) and (b) of the diagram, during the assembly process of the SMA motor 300, the shape memory alloy wire 330 is typically held by wire clamps (e.g., wire clamps 301 and 302) in the wire clamping device. When it is necessary to hang the shape memory alloy wire 330 on the steel plate 340, the steel plate 340 can be rotated to bring the first claw 341 closer to the wire clamp 301 and the second claw 342 closer to the wire clamp 302. This allows the shape memory alloy wire 340 to be hung on the first claw 341 and the second claw 342, ultimately assembling the SMA motor 300.

[0059] In the aforementioned wire-hanging process, the shape memory alloy wire 330 held by wire clamps 301 and 302 may become loose to varying degrees, making it impossible to precisely control the length of the shape memory alloy wire 330. This results in inconsistent lengths of the shape memory alloy wire 330 located between the jaws during each wire hanging process, reducing hanging accuracy and thus affecting the assembly yield and performance of the SMA motor. For example, Figure 6 An exemplary schematic diagram is shown showing the shape memory alloy wire 330 held by wire clamps 411 and 412 exhibiting different degrees of relaxation.

[0060] like Figure 6 As shown, the shape memory alloy wire 330 may include shape memory alloy wires 330a and 330b. Because the shape memory alloy wires 330a and 330b exhibit varying degrees of redundancy between the wire clamps 411 and 412, the lengths of the shape memory alloy wires 330a and 330b located between the clamps during wire hanging are inconsistent, resulting in decreased hanging accuracy and thus affecting the assembly yield of the SMA motor 300. Furthermore, the redundancy of the shape memory alloy wires 330a and 330b also affects the relaxation resistance of the assembled SMA motor 300, thereby impacting its performance.

[0061] In view of the above, this application provides a wire hanging device and an SMA motor production line, which can prevent the shape memory alloy wire held by the wire hanging device from becoming loose, and is conducive to controlling the length of the shape memory alloy wire each time it is hung, so as to improve the hanging accuracy and thus improve the assembly yield and performance yield of the SMA motor.

[0062] Figure 7 This is a schematic diagram of the structure of a hanging device 400 provided in an embodiment of this application.

[0063] The thread-hanging device 400 can be used to mount the thread-like material 5 onto a carrier (e.g., the thread-clamping part of the carrier). The thread-like material 5 can be, for example, […]. Figure 4 The shape memory alloy wire 330 is shown. The carrier could be, for example, a shape memory alloy wire 330. Figure 4 The steel sheet 340 shown can also be other metal or non-metal sheets. The clamping part can be, for example, a claw, such as... Figure 4 The first jaw 341 and the second jaw 342 are shown.

[0064] For ease of description, the Z-axis, X-axis and Y-axis directions mentioned below can also be referred to as the first direction, the second direction and the third direction, respectively.

[0065] like Figure 7As shown, the wire clamping device 400 may include a first wire clamping member 410, a second wire clamping member 420, and a counterweight mechanism 430. The first wire clamping member 410 may include a first upper wire clamping clamp 411 and a first lower wire clamping clamp 412 arranged opposite to each other along the Z-axis. The second wire clamping member 420 may include a second lower wire clamping clamp 421, and the first lower wire clamping clamp 412 and the second lower wire clamping clamp 421 are arranged opposite to each other along the X-axis.

[0066] The first end of the linear material 5 can extend to the position of the first clamping member 410 via the counterweight mechanism 430 and the second clamping member 420. The first upper clamping member 411 and the first lower clamping member 412 are used to clamp the first end of the linear material 5; that is, the first clamping member 410 uses double clamping members to clamp the first end of the linear material 5. The counterweight mechanism 430 can slide along the Z-axis, thereby applying a force along the Z-axis to the linear material 5, for example, a downward force along the Z-axis (i.e., along the direction from the first upper clamping member 411 to the first lower clamping member 412), so that the linear material 5 can be supported on the second lower clamping member 412, and the linear material 5 between the first clamping member 410 and the second clamping member 420 is taut. In other words, the second clamping member 420 uses a single clamping member to support the linear material 5.

[0067] In some embodiments, the counterweight mechanism 430 may be mounted on a mounting plate (not shown). Exemplarily, the counterweight mechanism 430 may include a groove 431 and a counterweight wheel 432. The groove 431 may extend along the Z-axis direction, and the counterweight wheel 432 may be slidably disposed within the groove 431. In a specific embodiment, the first end of the linear material 5 may bypass the lower wall of the counterweight wheel 432 and extend to the first wire clamp 410. When the counterweight wheel 432 slides along the extension direction of the groove 431, a force along the Z-axis can be applied to the linear material 5, so that the linear material 5 can be constantly supported on the second lower wire clamp 412, and the linear material 5 between the first wire clamp 410 and the second wire clamp 420 is taut.

[0068] In this embodiment, the first wire clamping member 410 uses double wire clamps to hold one end of the linear material for wire pulling and hanging processes. The second wire clamping member 420 uses a single wire clamp, and a counterweight mechanism 430 slides up and down (i.e., along the Z-axis) to apply force to the linear material, so that the other end of the linear material is supported on the single wire clamp, and the linear material between the first wire clamping member 410 and the second wire clamping member 420 is kept taut. Since double wire clamps are prone to misalignment, causing the linear material to slack, compared to using double wire clamps for both the first wire clamping member 410 and the second wire clamping member 420, the above technical solution is more advantageous in avoiding slack in the linear material between the first wire clamping member 410 and the second wire clamping member 420. This ensures the consistency of the linear material length each time it is hung, thereby improving the hanging accuracy, increasing the assembly yield of the SMA motor, and also improving the performance of the SMA motor's slack resistance, thus improving product performance yield.

[0069] In some embodiments, to avoid the impact of the positional difference of the linear material 5 in the height direction (i.e., the Z-axis direction) between the first clamping member 410 and the second clamping member 420 on the wire hanging process each time, when the first upper clamping clamp 411 and the first lower clamping clamp 412 clamp the first end of the linear material 5 and the second lower clamping clamp 412 carries the second end of the linear material 5, the first lower clamping clamp 412 and the second lower clamping clamp 421 are aligned in the Z-axis direction. This ensures that the linear material 5 clamped between the first clamping member 410 and the second clamping member 420 is at the same height. This helps to ensure that the position of the linear material 5 clamped between the first clamping member 410 and the second clamping member 420 is consistent in the height direction each time the wire is hung, thereby improving the wire hanging accuracy and enhancing the resistance stability and reliability of the SMA motor.

[0070] Figure 8 schematically shown Figure 7 The diagram shows a top view of the hanging device 400.

[0071] In some embodiments, combined with Figure 7 and Figure 8 To further ensure the consistency of the position of the linear material 5 held between the first clamping member 410 and the second clamping member 420 during each wire hanging operation, the wire hanging device 400 may further include clamping member limiting posts 440. The clamping member limiting posts 440 may include a first limiting post 441 and a second limiting post 442 disposed opposite to each other along the X-axis direction. The first limiting post 441 may penetrate the ends of the first upper clamping clamp 411 and the first lower clamping clamp 412, and the second limiting post 442 may penetrate the end of the second lower clamping clamp 421. Exemplarily, the extending directions of the first limiting post 441 and the second limiting post 442 may be parallel to the Z-axis direction.

[0072] like Figure 8As shown, the linear material 5 clamped between the first clamping member 410 and the second clamping member 420 can be located on the same side of the first limiting post 441 and the second limiting post 442 in the Y-axis direction, and is tangent to the first limiting post 441 and the second limiting post 442. That is, the linear material 5 clamped between the first clamping member 410 and the second clamping member 420 is parallel to the X-axis direction, and is in the same position tangent to the first limiting post 441 and the second limiting post 442 in the Y-axis direction. Therefore, it is beneficial to ensure that the direction and position of the linear material 5 clamped between the first clamping member 410 and the second clamping member 420 are consistent each time the wire is attached, so as to improve the resistance stability and reliability performance of the SMA motor.

[0073] In some embodiments, combined with Figure 7 and Figure 8 To precisely control the length of the linear material 5 held between the first clamping member 410 and the second clamping member 420, the wire-hanging device 400 may further include a wire-lifting mechanism 450 located between the first clamping member 410 and the second clamping member 420. The wire-lifting mechanism 450 may include a third limiting post 451, a fourth limiting post 452, and a lifting pin 453. The third limiting post 451 and the fourth limiting post 452 may be arranged opposite each other along the X-axis, and the lifting pin 453 may be located between the third limiting post 451 and the fourth limiting post 452. For example, the third limiting post 451, the fourth limiting post 452, and the lifting pin 453 may be mounted on a robotic arm 461.

[0074] The third limiting post 421 and the fourth limiting post 452 can be located on the side of the linear material 5 away from the first limiting post 441. Specifically, as Figure 8 As shown, the linear material 5 clamped between the first clamping member 410 and the second clamping member 420, while tangent to the first limiting post 441 and the second limiting post 442, can be located on the same side of the third limiting post 451 and the fourth limiting post 452 in the Y-axis direction. This side is located between the first limiting post 441 and the second limiting post 442, and between the third limiting post 451 and the fourth limiting post 452. That is to say, as Figure 8As shown, the linear material 5 clamped between the first clamping member 410 and the second clamping member 420 is tangent to the front side (i.e., the positive Y-axis direction) of the first limiting post 441 and the second limiting post 442, and located behind the third limiting post 451 and the fourth limiting post 452 (i.e., the negative Y-axis direction). The ejector pin 453 can move along the Y-axis direction so that the linear material 5 moves along the Y-axis direction while being tangent to the first limiting post 441 and the second limiting post 442. Thus, by precisely controlling the length of the linear material 5 clamped between the first clamping member 410 and the second clamping member 420 through the ejector pin method, it is beneficial to ensure the consistency of the length of the linear material each time it is attached, thereby improving the attachment accuracy, increasing the assembly yield of the SMA motor, and also improving the performance of the SMA motor's slack resistance, thus improving the product performance yield.

[0075] In some embodiments, continue to combine Figure 7 To facilitate automated wire clamping by the wire hanging device 400, the device may further include a wire reel 470 and a wire guiding mechanism (not shown in the figure). The wire reel 470 is rotatable and is used to mount a coil of linear material. The wire guiding mechanism is used to pull the end of the coil of linear material, causing it to extend through the counterweight mechanism 430 and the second wire clamping member 420 to the first wire clamping member 410. This allows the first upper wire clamping clamp 411 and the first lower wire clamping clamp 412 to clamp the first end of the linear material.

[0076] In one example, the wire hanging device 400 may also include a cutting mechanism (not shown) that can be used to cut the wire material so that the wire material held between the first wire clamp 410 and the second wire clamp 420 can be separated from the wire material roll.

[0077] In some embodiments, continue to combine Figure 7 The hanging device 400 may also include a guide mechanism 480, which is used to prevent the linear material 5 from sagging.

[0078] For example, the guide mechanism 480 can be disposed on the path of the linear material 5 between the reel 470 and the counterweight mechanism 430, or it can be disposed on the path of the linear material 5 between the counterweight mechanism 430 and the second clamping member 420. The guide mechanism 480 can be, for example, a guide wheel, and the linear material 5 on the reel 470 can bypass the outer wall of the guide wheel and extend to the counterweight mechanism 480. Alternatively, the linear material 5 on the reel 470 can bypass the outer wall of the counterweight structure 430 and extend to the second clamping member 420. This prevents the linear material 5 from sagging, which helps ensure stress stability within the linear material 5.

[0079] The process of the first wire clamping member 410 and the second wire clamping member 420 clamping the linear material 5 is illustrated below with reference to the accompanying drawings.

[0080] Figure 9 The diagram illustrates the process by which the first clamping member 410 and the second clamping member 420 clamp the linear material 5. Figure 9 (a) schematically shows the state of the wire clamps in the first wire clamp 410 and the second wire clamp 420 when they are open. Figure 9 (b) schematically shows the state of the wire clamps in the first wire clamp 410 and the second wire clamp 420 when they are closed. Figure 9 (c) in the middle is Figure 9 The top view of (b) in the image.

[0081] like Figure 9 As shown in (a), when the linear material 5 is pulled between the first wire clamp 410 and the second wire clamp 420, the first upper wire clamp 411, the first lower wire clamp 412 and the second lower wire clamp 421 are opened.

[0082] Combination Figure 9 In (b) and (c), by moving the first wire clamping member 410 and the second wire clamping member 420 along the Y-axis direction, the linear material 5 can be tangent to the first limiting post 441 and the second limiting post 442 on the same side of the Y-axis direction.

[0083] In a specific implementation, the wire-hanging device 400 may further include a control module, a first drive mechanism and a second drive mechanism (not shown in the figure) connected to the control module. The first drive mechanism is connected to the first wire clamping member 410, and the second drive mechanism is connected to the second wire clamping member 420. Under the control of the control module, the first drive mechanism and the second drive mechanism can respectively drive the first wire clamping member 410 and the second wire clamping member 420 to move along the Y-axis direction, so that the linear material 5 is tangent to the first limiting post 441 and the second limiting post 442 on the same side of the Y-axis direction.

[0084] Then, by moving the top wire structure 450 along the Y-axis, the linear material 5 can be positioned on the same side of the third and fourth limiting posts 451 and 452 in the Y-axis direction, while being tangent to the first and second limiting posts 441 and 442. This side is located between the first and second limiting posts 441 and 442, and between the third and fourth limiting posts 451 and 452. Furthermore, by moving the top wire structure 450 along the Y-axis, the ejector pin 453 can move the linear material 5 along the Y-axis to adjust the length of the linear material 5 between the first clamping member 410 and the second clamping member 420 according to actual production needs. Figure 9 As shown in (c) in the figure.

[0085] After adjusting the position and length of the linear material 5 between the first clamping member 410 and the second clamping member 420, close the first upper clamping clamp 411, the first lower clamping clamp 412 and the second lower clamping clamp 421 to clamp the linear material 5, and then install the linear material 5 on the clamping part of the carrier.

[0086] This application embodiment also provides an SMA motor production line, which includes the above-mentioned wire hanging device. The wire hanging device is used to mount shape memory alloy wires onto a metal sheet (e.g., a conductive sheet such as a steel sheet or an aluminum sheet). The metal sheet is provided with claws for holding the shape memory alloy wires.

[0087] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A wire-hanging device, wherein the wire-hanging device is used to mount linear materials on a carrier, characterized in that, include: First wire clamping component, second wire clamping component, and counterweight mechanism; The first wire clamping component includes a first upper wire clamp and a first lower wire clamp, and the second wire clamping component includes a second lower wire clamp. The first upper wire clamp and the first lower wire clamp are arranged opposite to each other along a first direction, and the first lower wire clamp and the second lower wire clamp are arranged opposite to each other along a second direction. The first direction and the second direction are perpendicular to each other. The first end of the linear material extends to the first clamping member via the counterweight mechanism and the second clamping member in sequence. The first upper clamping clamp and the first lower clamping clamp are used to clamp the first end. The counterweight mechanism slides along the first direction so that the linear material is supported on the second lower clamping clamp and the linear material located between the first clamping member and the second clamping member is taut.

2. The hanging device according to claim 1, characterized in that, The counterweight mechanism includes a slide and a counterweight wheel. The chute extends along the first direction, the counterweight wheel is slidably disposed in the chute, and the first end extends around the lower wall of the counterweight wheel to the first wire clamp, so that when the counterweight wheel slides along the extension direction of the chute, the linear material is supported on the second lower wire clamp, and the linear material located between the first wire clamp and the second wire clamp is taut.

3. The hanging device according to claim 1 or 2, characterized in that, When the first upper wire clamp and the first lower wire clamp hold the first end, and the second lower wire clamp carries the linear material, the first lower wire clamp and the second lower wire clamp are at the same height in the first direction.

4. The hanging device according to any one of claims 1 to 3, characterized in that, The wire hanging device further includes wire clamping member limiting posts, which include a first limiting post and a second limiting post. The first limiting post and the second limiting post are arranged opposite to each other along the second direction. The first limiting post passes through the ends of the first upper wire clamp and the first lower wire clamp, and the second limiting post passes through the end of the second lower wire clamp. The linear material located between the first clamping member and the second clamping member is tangent to the first and second limiting posts in a third direction, and is perpendicular to any two of the third direction, the first direction, and the second direction.

5. The hanging device according to claim 4, characterized in that, The extension directions of the first limiting post and the second limiting post are parallel to the first direction.

6. The hanging device according to claim 4 or 5, characterized in that, The wire hanging device further includes a wire-lifting mechanism, which is located between the first wire clamping member and the second wire clamping member. The top wire mechanism includes a third limiting post, a fourth limiting post, and a top pin. The third limiting post and the fourth limiting post are arranged opposite to each other along the second direction, and the top pin is located between the third limiting post and the fourth limiting post. In the third direction, the third limiting post and the fourth limiting post are located on the side of the linear material away from the first limiting post and the second limiting post; The ejector pin moves along the third direction to drive the linear material to move along the third direction.

7. The hanging device according to claim 6, characterized in that, The extension directions of the third limiting post, the fourth limiting post, and the ejector pin are parallel to the first direction.

8. The hanging device according to claim 6 or 7, characterized in that, The wire hanging device also includes a robotic arm, and the third limiting post, the fourth limiting post and the ejector pin are disposed on the robotic arm.

9. The hanging device according to any one of claims 1 to 8, characterized in that, The wire hanging device also includes a wire reel and a wire guiding mechanism. The reel is used to mount a coil of linear material, and the lead-in mechanism is used to pull the end of the coil of linear material to the counterweight mechanism.

10. The hanging device according to claim 9, characterized in that, The hanging device also includes a guiding mechanism. The guiding mechanism is disposed on the path of the linear material between the spool and the counterweight mechanism, and / or the guiding mechanism is disposed on the path of the linear material between the counterweight mechanism and the second clamping member; The guiding mechanism is used to prevent the linear material from sagging.

11. A shape memory alloy motor production line, characterized in that, include: The hanging device as described in any one of claims 1 to 10, The linear material is a shape memory alloy wire, the carrier is a metal sheet, and the wire mounting device is used to mount the shape memory alloy wire onto the metal sheet.

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