Flexible clamping jaw for clamping SMA motor

Abstract

According to the flexible clamping jaw used for clamping the SMA motor, the first clamping through groove and the second clamping through groove which are opposite to each other are formed in the clamping jaw plate, the vertical receding through groove is formed in the clamping jaw plate, and the two corresponding clamping jaw bodies and the two corresponding receding jaw bodies are arranged respectively; the two clamping claws slide in the corresponding clamping through grooves through the clamping SMA assemblies, and the receding claws slide in the receding through grooves through the receding SMA assemblies. According to the embodiment, the two clamping jaws are used for clamping the two side faces of the SMA motor respectively, the receding jaws are arranged for clamping the top face of the SMA motor, the number of the clamped faces of the SMA motor is three, the clamping stability can be further guaranteed, the driving component is further provided with an SMA element, and the clamping efficiency is improved. The displacement and the clamping force of the three clamping jaws can be accurately controlled by controlling the magnitude of the current, and then the problem that damage is likely to be caused by an existing SMA motor clamping scheme is solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to SMA motor processing technical field especially relates to a flexible dog -claw for clamping SMA motor. BACKGROUND

[0002] Auto focus (AF) is the light reflection principle of the object, the light reflected by the object forms an image on the image sensor after passing through the lens, and the computer obtains the object distance of the object by processing the image generated by the image sensor, and then automatically moves the lens to complete focusing according to the object distance.

[0003] In order to compensate for the image blur caused by terminal device jitter during exposure, optical image stabilization (OIS) technology is proposed. Through gyroscopic jitter detection, the entire lens is translated or rotated in the opposite direction through the OIS motor, thereby compensating for the image blur caused by terminal device jitter during exposure. As a method to realize the above-mentioned AF and OIS, the SMA motor assembly can be used to drive the lens to move or rotate.

[0004] In the prior art, the SMA motor assembly pin is glued, laser engraved, and soldered and electrically connected between the SMA motor assembly and the CMOS assembly PCB board during the tin spraying process, and the SMA motor needs to be clamped and moved between different stations. However, the existing clamping method only clamps the SMA motor through two clamping arms, which is unstable and prone to clamping deviation, and the clamping force is not stable, which can easily damage the SMA motor. UTILITY MODEL CONTENTS

[0005] The technical problem to be solved by the utility model is to provide a flexible dog -claw for clamping SMA motor to solve the problem that the existing SMA motor clamping scheme is prone to damage.

[0006] To solve the above problems, the technical scheme of the utility model is as follows:

[0007] The utility model relates to a flexible dog -claw for clamping SMA motor, which comprises:

[0008] The dog -claw plate is configured to have a first clamping through slot, a second clamping through slot and an avoidance through slot which extend outwardly along a first direction, a second direction and a third direction respectively on the basis of its body, the first direction is collinear with the second direction and the direction is opposite, and the third direction is perpendicular to the first direction.

[0009] Two clamping jaws, sliding ends of the two clamping jaws are respectively connected to the first clamping through slot and the second clamping through slot, and clamping ends of the two clamping jaws are respectively configured to clamp two sides of the SMA motor;

[0010] Two clamping SMA assemblies, first execution ends of the two clamping SMA assemblies are respectively fixedly connected to the body, and second execution ends of the two clamping SMA assemblies are respectively fixedly connected to the sliding ends of the two clamping jaws;

[0011] An avoidance jaw, a sliding end of the avoidance jaw is connected to the avoidance through slot, and a clamping end of the avoidance jaw is configured to clamp a top surface of the SMA motor;

[0012] An avoidance SMA assembly, a first execution end of the avoidance SMA assembly is fixedly connected to the body, and a second execution end of the avoidance SMA assembly is fixedly connected to the sliding end of the avoidance jaw;

[0013] A conductive wire, at least part of the conductive wire is arranged in the body, and the conductive wire is respectively electrically connected with the two clamping SMA assemblies and the avoidance SMA assembly.

[0014] The flexible jaw for clamping the SMA motor further comprises three elastic members;

[0015] First ends of the three elastic members are respectively connected to the jaw plate, and second ends of the three elastic members are respectively connected to the second execution ends of the two clamping SMA assemblies and the second execution end of the avoidance SMA assembly.

[0016] The flexible jaw for clamping the SMA motor, the jaw plate comprises the body, a first transverse arm arranged in a first direction, a second transverse arm arranged in a second direction, and a longitudinal arm arranged in a third direction;

[0017] The first clamping through slot and the second clamping through slot are respectively arranged in the first transverse arm and the second transverse arm, and the avoidance through slot is arranged in the longitudinal arm.

[0018] The flexible jaw for clamping the SMA motor, the avoidance jaw and the clamping jaw are both jaw structures, and the jaw structure comprises a sliding block, an extension member and a flexible clamping member;

[0019] The slider comprises a sliding section and an abutting section connected to a first end of the sliding section, the sliding section is slidingly connected to the corresponding first clamping through slot, the second clamping through slot or the avoiding through slot, and a face of the abutting section towards the sliding section is a first abutting face; two ends of the extension piece are respectively connected to a second end of the sliding section and the flexible clamping piece, a face of the extension piece towards the sliding section is a second abutting face, and the first abutting face and the second abutting face are configured to respectively fit the entity structure outside the first clamping through slot, the second clamping through slot or the avoiding through slot.

[0020] The flexible clamping jaw for clamping the SMA motor is used for clamping the SMA motor, the first abutting face and the second abutting face are slidingly connected between the entity structure outside the first clamping through slot, the second clamping through slot or the avoiding through slot.

[0021] The flexible clamping jaw for clamping the SMA motor is used for clamping the SMA motor, a face of the flexible clamping piece of the clamping jaw towards the jaw plate is a first clamping face, and a plurality of flexible tooth-shaped protrusions are arranged on the first clamping face.

[0022] The flexible clamping jaw for clamping the SMA motor is used for clamping the SMA motor, two avoiding clamping protrusions are arranged on the flexible clamping piece of the avoiding jaw along the first direction, the two avoiding clamping protrusions are configured to be clamped to two side end angles of a top face of the SMA motor respectively, a face of the two avoiding clamping protrusions towards the jaw plate is a second clamping face, and a plurality of flexible tooth-shaped protrusions are arranged on the second clamping face.

[0023] The flexible clamping jaw for clamping the SMA motor is used for clamping the SMA motor, the clamping SMA assembly comprises a clamping conducting block, a clamping connecting block and at least one clamping SMA wire;

[0024] The clamping conducting block is fixed to the corresponding clamping jaw, the clamping connecting block is fixedly connected to the jaw plate and electrically connected with the conductive wire, the clamping SMA wire is arranged through and electrically connected to the clamping connecting block, and two ends of the clamping SMA wire are respectively connected to the clamping conducting block and the jaw plate.

[0025] The flexible clamping jaw for clamping the SMA motor is used for clamping the SMA motor, the avoiding SMA assembly comprises an avoiding conducting block, an avoiding connecting block and at least one avoiding SMA wire;

[0026] The avoiding conducting block is fixed to the corresponding avoiding jaw, the avoiding connecting block is fixedly connected to the jaw plate and electrically connected with the conductive wire, the avoiding SMA wire is arranged through and electrically connected to the avoiding connecting block, and two ends of the avoiding SMA wire are respectively connected to the avoiding conducting block and the jaw plate.

[0027] The flexible claw for clamping the SMA motor is characterized in that the number of SMA wires in the clamping SMA assembly or the position-avoiding SMA assembly is two or more than two, a limiting protrusion is arranged between adjacent SMA wires, and the limiting protrusion is configured to limit the overlap of adjacent SMA wires in a relaxed state.

[0028] The flexible claw for clamping the SMA motor is characterized in that the top of the claw plate is provided with a driving connection end, and the driving connection end is configured to be connected with an external moving mechanism.

[0029] The flexible claw for clamping the SMA motor is characterized in that a mounting groove is arranged on the driving connection end, and a circuit board is arranged in the mounting groove.

[0030] The flexible claw for clamping the SMA motor has the following advantages and positive effects compared with the prior art by adopting the above technical scheme:

[0031] In an embodiment of the present application, opposite first clamping through slots and second clamping through slots and a vertical position-avoiding through slot are arranged on the claw plate, and corresponding two clamping claws and a position-avoiding claw are arranged, respectively, the two clamping claws are clamped to the two sides of the SMA motor respectively through the clamping SMA assembly to realize sliding in the corresponding clamping through slots, and the position-avoiding claw is clamped to the top surface of the SMA motor through the position-avoiding SMA assembly to realize sliding in the position-avoiding through slot. In this embodiment, the two clamping claws are clamped to the two sides of the SMA motor, and the position-avoiding claw is clamped to the top surface of the SMA motor, so that the clamped surfaces of the SMA motor reach three, thereby the stability of clamping can be ensured, and further, the driving part is arranged with SMA elements, the displacement and clamping force of the three claws can be accurately controlled by controlling the size of the current, thereby the problem that the existing SMA motor clamping scheme is easy to cause damage is solved. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 It is a schematic view of the flexible claw for clamping the SMA motor of the present application;

[0033] Figure 2 It is another schematic view of the flexible claw for clamping the SMA motor of the present application.

[0034] Explanation of reference signs: 1, claw plate; 2, element connection section; 3, limiting protrusion; 4, clamping claw; 5, position-avoiding claw; 6, clamping SMA assembly; 601, clamping through block; 602, clamping SMA wire; 603, clamping connection block; 7, position-avoiding SMA assembly; 701, position-avoiding through block; 702, position-avoiding SMA wire; 703, position-avoiding connection block; 8, circuit board; 9, conductive wire; 10, sliding block; 11, extension piece; 12, flexible clamping piece. DETAILED DESCRIPTION

[0035] The flexible jaw for clamping SMA motor is further described in detail below in combination with the drawings and specific embodiments. The advantages and features of the utility model will be more apparent according to the following description and claims.

[0036] Referring to Figure 1 And Figure 2 In one embodiment, a flexible jaw for clamping SMA motor includes a jaw plate 1, two clamping jaws 4, two clamping SMA assemblies 6, a clearance jaw 5, a clearance SMA assembly 7 and a conductive wire 9.

[0037] The jaw plate 1 is configured to have a first clamping through slot, a second clamping through slot and a clearance through slot extending outwardly along a first direction, a second direction and a third direction respectively on the basis of the body, the first direction is collinear with the second direction and the directions are opposite, and the third direction is perpendicular to the first direction.

[0038] The sliding ends of the two clamping jaws 4 are respectively connected to the first clamping through slot and the second clamping through slot, and the clamping ends of the two clamping jaws 4 are respectively configured to clamp the two sides of the SMA motor. The first execution ends of the two clamping SMA assemblies 6 are respectively fixedly connected to the body, and the second execution ends of the two clamping SMA assemblies 6 are respectively fixedly connected to the sliding ends of the two clamping jaws 4.

[0039] The sliding end of the clearance jaw 5 is connected to the clearance through slot, and the clamping end of the clearance jaw 5 is configured to clamp the top surface of the SMA motor. The first execution end of the clearance SMA assembly 7 is fixedly connected to the body, and the second execution end of the clearance SMA assembly 7 is fixedly connected to the sliding end of the clearance jaw 5.

[0040] The conductive wire 9 is at least partially arranged in the body, and the conductive wire 9 is respectively electrically connected to the two clamping SMA assemblies 6 and the clearance SMA assembly 7 to establish power supply to the clamping SMA assemblies 6 and the clearance SMA assembly 7.

[0041] The embodiment sets the opposite first clamping through slot, second clamping through slot and vertical clearance through slot on the jaw plate 1, and respectively sets the corresponding two clamping jaws 4 and clearance jaw 5, the two clamping jaws 4 respectively slide in the corresponding clamping through slot through the clamping SMA assembly 6, and the clearance jaw 5 slides in the clearance through slot through the clearance SMA assembly 7. The embodiment clamps the two sides of the SMA motor through the two clamping jaws 4 respectively, and sets the clearance jaw 5 to clamp the top surface of the SMA motor, so that the clamped surface of the SMA motor reaches three, which can guarantee the stability of clamping, and further sets the SMA element as the driving component, and the displacement and clamping force of the three jaws can be accurately controlled by controlling the size of the current, thereby solving the problem that the existing SMA motor clamping scheme is easy to cause damage.

[0042] The specific structure of the flexible jaw for clamping the SMA motor in the embodiment is further described below:

[0043] In the embodiment, the jaw plate 1 can specifically include a body, a first transverse arm arranged in a first direction, a second transverse arm arranged in a second direction, and a longitudinal arm arranged in a third direction. The first clamping through slot and the second clamping through slot are respectively arranged in the first transverse arm and the second transverse arm, and the avoidance through slot is arranged in the longitudinal arm.

[0044] Further, the upper part of the body can be provided with an element connecting section 2 for connecting the SMA element, and a driving connecting end can be further provided on the body or the element connecting section 2, which is configured to be connected to an external moving mechanism and can be provided in the form of a corresponding connecting interface. The element connecting section 2 and the driving connecting end can be integrated.

[0045] Further, the element connecting section 2 is provided with a mounting groove on the driving connecting end, and a circuit board 8 is arranged in the mounting groove for electrical connection to a conductive trace 9.

[0046] In the embodiment, the flexible jaw can further include three sets of elastic members. The first ends of the three sets of elastic members are respectively connected to the element connecting section 2, and the second ends of the three sets of elastic members are respectively connected to the second actuating end of the two clamping SMA assemblies 6 and the second actuating end of the avoidance SMA assembly 7. The elastic members can be springs, which can reset the corresponding jaw.

[0047] In the embodiment, the avoidance jaw 5 and the clamping jaw 4 can both be in the form of a jaw structure, which can specifically include a sliding block 10, an extension member 11, and a flexible clamping member 12.

[0048] The sliding block 10 includes a sliding section and an abutting section connected to the first end of the sliding section. The sliding section is slidingly connected to the corresponding first clamping through slot, second clamping through slot, or avoidance through slot, and the surface of the abutting section facing the sliding section is a first abutting surface. The extension member 11 has two ends respectively connected to the second end of the sliding section and the flexible clamping member 12, and the surface of the extension member 11 facing the sliding section is a second abutting surface.

[0049] The first abutting surface and the second abutting surface are configured to respectively fit the outer side of the entity structure of the first clamping through slot, the second clamping through slot, or the avoidance through slot, which is the upper surface and the lower surface of the corresponding first transverse arm, second transverse arm, or longitudinal arm.

[0050] Further, in order to improve the guiding of sliding and reduce the driving resistance, the first abutting surface and the second abutting surface can be arranged in a ball sliding connection manner with the upper surface and the lower surface of the corresponding first transverse arm or the second transverse arm or the longitudinal arm. That is, the first abutting surface and the second abutting surface can be respectively provided with ball grooves between the upper surface and the lower surface of the corresponding first transverse arm or the second transverse arm or the longitudinal arm, and a plurality of balls can be arranged in the corresponding two ball grooves. Specifically, the ball grooves on each surface can be arranged as two or more, and are arranged on both sides of the corresponding first clamping through groove or the second clamping through groove or the avoidance through groove.

[0051] Further, the flexible clamping piece 12 of the clamping jaw 4 (the shape of the flexible clamping piece 12 can be a downwardly extending strip structure) is a first clamping surface facing the surface of the jaw plate 1, and a plurality of flexible tooth-shaped protrusions are arranged on the first clamping surface. Specifically, the flexible tooth-shaped protrusions can extend transversely, and each flexible tooth-shaped protrusion is arranged downwardly and spacedly.

[0052] The flexible clamping piece 12 of the avoidance jaw 5 is provided with two avoidance clamping protrusions arranged spacedly along the first direction (the shape of the flexible clamping piece 12 can be a structure including a connecting segment for connecting the corresponding extension piece 11, a transverse segment connected to the connecting segment, and two avoidance clamping protrusions arranged at the two ends of the transverse segment, respectively), and the two avoidance clamping protrusions are configured to clamp the two side end corners of the top surface of the SMA motor, respectively. The surface of the two avoidance clamping protrusions facing the jaw plate 1 is a second clamping surface, and a plurality of flexible tooth-shaped protrusions are arranged spacedly on the second clamping surface. The arrangement form of the flexible tooth-shaped protrusions can also be transversely extending, and each flexible tooth-shaped protrusion is arranged downwardly and spacedly.

[0053] In the embodiment, the clamping SMA assembly 6 can include a clamping conducting block 601, a clamping connecting block 603, and at least one clamping SMA wire 602 (in order to ensure the stability of driving, two clamping SMA wires 602 can be arranged spacedly in the horizontal direction).

[0054] The clamping conducting block 601 is fixed to the corresponding clamping jaw 4 (specifically, the abutting segment of the sliding block 10), the clamping connecting block 603 is fixedly connected to the jaw plate 1 (specifically, the element connecting segment 2) and is electrically connected to the conductive trace 9, the clamping SMA wire 602 is arranged through and electrically connected to the clamping connecting block 603, and the two ends of the clamping SMA wire 602 are connected to the clamping conducting block 601 and the jaw plate 1 (specifically, the element connecting segment 2), respectively.

[0055] In the embodiment, the avoidance SMA assembly 7 specifically includes an avoidance conduction block 701, an avoidance connection block 703, and at least one avoidance SMA wire 702 (in order to ensure the stability of driving, two avoidance SMA wires 702 can be arranged in the horizontal direction at intervals).

[0056] The avoidance conduction block 701 is fixed to the corresponding avoidance pawl 5 (specifically connected to the abutting section of the sliding block 10), the avoidance connection block 703 is fixedly connected to the pawl plate 1 (specifically fixed to the element connection section 2) and electrically connected to the conductive wire 9, the avoidance SMA wire 702 is arranged through and electrically connected to the avoidance connection block 703, and the two ends of the avoidance SMA wire 702 are respectively connected to the avoidance conduction block 701 and the pawl plate 1 (specifically fixed to the element connection section 2).

[0057] Specifically, the clamping SMA wire 602 and the avoidance SMA wire 702 are two, the clamping conduction block 601 and the avoidance conduction block 701 can be a distal SMA wire clamp head with two clamping ends (installed on the abutting section of the sliding block 10, and the material can be metal, thereby ensuring the electrical connection between the two clamping ends), and the clamping connection block 603 and the avoidance connection block 703 can be two proximal SMA wire clamp heads (fixed to the element connection section 2), and the proximal SMA wire clamp head and the clamping end of the corresponding distal SMA wire clamp head clamp one clamping SMA wire 602 or avoidance SMA wire 702.

[0058] Further, the conductive wire 9 (which can be a conductive strip directly injection molded in the element connection section 2) can also be arranged to pass out of the element connection section 2 and be connected to the corresponding proximal SMA wire clamp head.

[0059] Further, the two proximal SMA wire clamp heads can be arranged on the upper surface of the extension portion of the element connection section 2 in the transverse direction, and a limiting protrusion can be arranged at one end of the extension portion towards the sliding block, the height of the limiting protrusion being higher than the proximal SMA wire clamp head to prevent the problem that the two clamping SMA wires 602 or the two avoidance SMA wires 702 may be stacked together in the unpowered relaxed state. In other embodiments, if the number of clamping SMA wires 602 or avoidance SMA wires 702 is more than one, the number of limiting protrusions can also be increased accordingly.

[0060] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments. Even if various changes are made to the utility model, as long as the changes fall within the scope of the claims of the utility model and the equivalent technology, they still fall within the protection scope of the utility model.

Claims

1. A flexible jaw for clamping an SMA motor, characterized by, The utility model relates to a kind of SMA motor clamping device, including: Claw plate, the claw plate is configured to have first clamping through slot, second clamping through slot and avoid position through slot along respectively along first direction, second direction and third direction outwardly on its body basis, the first direction is collinear with the second direction and direction is opposite, the third direction is perpendicular to the first direction; Two clamping claws, the sliding end of two the clamping claws is respectively slidably connected to the first clamping through slot and second clamping through slot, and the clamping end of two the clamping claws is respectively configured to clamp to the two sides of SMA motor; Two clamping SMA components, the first execution end of two the clamping SMA components is respectively fixedly connected to the body, and the second execution end of two the clamping SMA components is respectively fixedly connected to the sliding end of two the clamping claws; Avoid position claw, the sliding end of the avoid position claw is slidably connected to the avoid position through slot, and the clamping end of the avoid position claw is configured to clamp to the top surface of SMA motor; Avoid position SMA component, the first execution end of the avoid position SMA component is fixedly connected to the body, and the second execution end of the avoid position SMA component is fixedly connected to the sliding end of the avoid position claw; Conductive wire, at least part is arranged in the body, and the conductive wire is electrically connected with two the clamping SMA components and the avoid position SMA component respectively.

2. The flexible jaw for clamping an SMA motor of claim 1, wherein, It also includes three groups of elastic members; The first end of three groups of the elastic members is respectively connected to the claw plate, and the second end of three groups of the elastic members is respectively connected to the second execution end of two the clamping SMA components and the second execution end of the avoid position SMA component.

3. The flexible jaw for clamping an SMA motor of claim 1, wherein, The claw plate includes the body, first transverse arm arranged along the first direction, second transverse arm arranged along the second direction, and longitudinal arm arranged along the third direction; The first clamping through slot and the second clamping through slot are respectively provided in the first transverse arm and the second transverse arm, and the avoid position through slot is provided in the longitudinal arm.

4. The flexible jaw for clamping an SMA motor of claim 1, wherein, The avoid position claw and the clamping claw are both claw structures, and the claw structure includes sliding block, extension member and flexible clamping member; The sliding block includes sliding segment and abutting segment connected to the first end of the sliding segment, the sliding segment is slidably connected to the corresponding first clamping through slot or second clamping through slot or avoid position through slot, and the surface of the abutting segment towards the sliding segment is first abutting surface;The two ends of the extension member are respectively connected to the second end of the sliding segment and the flexible clamping member, the surface of the extension member towards the sliding segment is second abutting surface, and the first abutting surface and the second abutting surface are configured to respectively fit the entity structure outside the first clamping through slot or the second clamping through slot or the avoid position through slot.

5. The flexible jaw for clamping an SMA motor of claim 4, wherein, The first abutting surface and the second abutting surface are slidably connected with the entity structure outside the first clamping through slot or the second clamping through slot or the avoid position through slot through ball.

6. The flexible jaw for clamping an SMA motor of claim 4, wherein, The surface of the flexible clamping member of the clamping claw towards the claw plate is first clamping surface, and a plurality of flexible toothed protrusions are arranged on the first clamping surface.

7. The flexible jaw for clamping an SMA motor of claim 4, wherein, The flexible clamping piece of the position-avoiding clamping claw is provided with two position-avoiding clamping protrusions arranged at intervals in the first direction, and the two position-avoiding clamping protrusions are configured to clamp two side end corners of the top surface of the SMA motor respectively, and the face of the two position-avoiding clamping protrusions towards the claw plate is a second clamping face, and the second clamping face is provided with a plurality of flexible tooth-shaped protrusions arranged at intervals.

8. The flexible jaw for clamping an SMA motor of claim 1, wherein, The clamping SMA assembly comprises a clamping conduction block, a clamping connecting block and at least one clamping SMA wire; The clamping conduction block is fixed to the corresponding clamping claw, the clamping connecting block is fixedly connected to the claw plate and electrically connected to the conductive wire, the clamping SMA wire is arranged through and electrically connected to the clamping connecting block, and the two ends of the clamping SMA wire are respectively connected to the clamping conduction block and the claw plate.

9. The flexible jaw for clamping an SMA motor of claim 1, wherein, The position-avoiding SMA assembly comprises a position-avoiding conduction block, a position-avoiding connecting block and at least one position-avoiding SMA wire; The position-avoiding conduction block is fixed to the corresponding position-avoiding claw, the position-avoiding connecting block is fixedly connected to the claw plate and electrically connected to the conductive wire, the position-avoiding SMA wire is arranged through and electrically connected to the position-avoiding connecting block, and the two ends of the position-avoiding SMA wire are respectively connected to the position-avoiding conduction block and the claw plate.

10. The flexible jaw for clamping an SMA motor of claim 1, wherein, The number of SMA wires in the clamping SMA assembly or the position-avoiding SMA assembly is two or more, and a limiting protrusion is arranged between adjacent SMA wires, and the limiting protrusion is configured to limit the overlapping of adjacent SMA wires in a relaxed state.

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