CN211148861U - False lens for SMA motor detection and SMA motor detection device - Google Patents

Abstract

The utility model relates to a performance detection field discloses a false camera lens and SMA motor detection device for SMA motor detection, and this false camera lens includes mount pad and lens, along the coaxial a plurality of shell fragments that are provided with of circumference on the mount pad, the shell fragment is configured with SMA motor joint, the lens coaxial arrangement in on the mount pad, and can with SMA motor moves jointly, the lens is configured to can reflect the detection signal, in order to transmit the motion condition of SMA motor, the utility model discloses a false camera lens can be convenient with SMA motor cooperation and reflect the motion of SMA motor; the SMA motor detection device comprises a false lens for SMA motor detection, a detection mechanism for sending a detection signal and receiving a signal reflected by the lens, a carrying platform for carrying the SMA motor and an adjusting mechanism for adjusting the position of the SMA motor and the position of the false lens, and the SMA motor detection device can conveniently realize the detection of the movement performance of the SMA motor.

Description

False lens for SMA motor detection and SMA motor detection device

Technical Field

The utility model relates to a performance detection area especially relates to a false camera lens and SMA motor detection device for SMA motor detects.

Background

The Shape Memory Alloy (SMA) motor is a moving element which moves by using the characteristics of Shape Memory Effect (SME), is mainly applied to small-load, high-speed and high-precision movement, and is widely applied to the automatic focusing function of a mobile phone camera.

The SMA motor is composed of a shell and a moving part, the moving part mainly comprises a driving element and an actuating mechanism, and the motion of the SMA motor cannot be detected directly by detecting the moving part because the SMA motor is wrapped by the shell so as to detect the motion characteristic of the SMA motor. In the prior art, the device for detecting the motion performance of the SMA motor is complex in structure, the installation and disassembly processes of the SMA motor are not easy to operate in the detection process, and the whole detection process is inconvenient to operate and low in efficiency.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a false camera lens for SMA motor detects for the SMA motor detects, its installation or the dismantlement of the SMA motor of being convenient for.

Another object of the utility model is to provide a SMA motor detection device can conveniently install the SMA motor in detection device and carry out the performance detection.

A false lens for SMA motor detection, comprising:

the mounting base is provided with a plurality of elastic sheets along the circumferential direction, and the elastic sheets are configured to be clamped with the SMA motor; and

the lens, it set up in on the mount pad, the axis of lens with the axis coincidence of mount pad, the lens can with SMA motor moves jointly, the lens can reflect the detected signal, be used for transmitting the motion condition of SMA motor.

Optionally, the false lens for SMA motor detection further includes a bracket, one end of the bracket is disposed on the mounting seat, the other end of the bracket is used for bearing the lens, and the axis of the mounting seat, the axis of the lens and the axis of the bracket are collinear.

Optionally, a plurality of support arms are arranged along the circumferential direction of the support, notches are correspondingly formed in the moving part of the SMA motor, the support arms are clamped in the notches, and the lower surfaces of the support arms are parallel to the upper surfaces of the notches.

Optionally, a connecting column is arranged at the lower end of the support, a connecting hole is formed in the mounting seat, and the connecting column penetrates through the connecting hole.

A SMA motor detection device, include be used for SMA motor detection's false camera lens, still include

A detection mechanism configured to send a detection signal to the mirror and receive a signal reflected by the mirror;

a stage configured to carry the SMA motor; and

an adjustment mechanism coupled to the stage, the adjustment mechanism configured to drive the stage to move to adjust the position of the SMA motor and the dummy lens.

Optionally, the adjusting mechanism includes an adjusting X-direction assembly, the adjusting X-direction assembly includes an adjusting X-direction driving source and an adjusting X-direction platform, the adjusting X-direction platform is respectively connected to the stage and an output end of the adjusting X-direction driving source, and the adjusting X-direction driving source can drive the stage, the SMA motor and the false lens to move in the X direction.

Optionally, the adjusting mechanism further includes an adjusting Y-direction component, the adjusting Y-direction component includes an adjusting Y-direction driving source and an adjusting Y-direction platform, the adjusting Y-direction platform is respectively connected to the adjusting X-direction platform and an output end of the adjusting Y-direction driving source, and the adjusting Y-direction driving source can drive the adjusting X-direction platform, the stage, the SMA motor and the dummy lens to move along a Y direction, where the X direction is perpendicular to the Y direction.

Optionally, a mounting groove is provided on the carrier, and the mounting groove is used for accommodating the SMA motor.

Optionally, at least one clamping mechanism is further arranged on the carrier, the clamping mechanism includes a clamping driving piece and an ejector block, an output end of the clamping driving piece is connected to the ejector block, an opening is formed in a side face of the mounting groove, and the clamping driving piece can drive the ejector block to extend into the opening and abut against the shell of the SMA motor so as to clamp the shell of the SMA motor.

Optionally, a guide mechanism is arranged between the top block and the carrier, the guide mechanism includes a guide groove and a guide protrusion, one of the top block and the carrier is provided with the guide groove, the other is provided with the guide protrusion, and the guide groove is in sliding fit with the guide protrusion.

The advantages and beneficial effects are that:

the utility model provides a false camera lens for SMA motor detects, which comprises a mounting bas, be provided with a plurality of shell fragments on the mount pad with one heart, the moving part joint of a plurality of shell fragments and SMA motor, false camera lens and SMA motor moving part relative position's fixed, thereby false camera lens can with the synchronous motion of SMA motor moving part, be provided with the lens on the mount pad, the lens can reflect the detected signal, consequently false camera lens can be directly through the actual motion condition that the lens reflection signal transmitted the SMA motor, and the direct joint of moving part of false camera lens and SMA motor, the mounting means is convenient, easily operation.

The utility model provides a pair of SMA motor detection device, SMA motor place on the microscope carrier, install false camera lens in the moving part of SMA motor, detection mechanism sends the detected signal, and false camera lens reflection detected signal transmits the detection mechanism with the motion condition with SMA motor moving part to the realization is to the detection of SMA motor moving performance, and overall structure is simple, and the moving part installation of false camera lens and SMA motor is convenient, improves detection efficiency greatly.

Drawings

Fig. 1 is a schematic structural view of an SMA motor detection apparatus according to an embodiment of the present invention;

fig. 2 is a schematic view of a false lens structure for SMA motor detection according to an embodiment of the present invention;

fig. 3 is a schematic view of an assembly structure of a false lens and an SMA motor according to an embodiment of the present invention;

FIG. 4 is a schematic view of a mounting seat structure according to an embodiment of the present invention;

FIG. 5 is a schematic view of a bracket structure according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of an adjusting mechanism, a carrier and a clamping device according to an embodiment of the present invention;

fig. 7 is an enlarged view of a portion a in fig. 6 according to the present invention.

The figures are labeled as follows:

1-false shot; 2-an SMA motor; 3-a detection mechanism; 4-carrying platform; 5-an adjusting mechanism; 6-a clamping mechanism; 7-a guide mechanism;

11-a mounting seat; 12-a lens; 13-a scaffold; 31-a detection component; 41-mounting groove; 51-adjusting the X-direction component; 52-adjusting the Y-direction component; 61-clamping the drive; 62-a top block;

111-spring plate; 112-connection hole; 131-a holder arm; 132-a connecting column; 133-lens groove; 511-adjusting the X-direction driving source; 512-adjust the X-direction stage; 521-adjusting a Y-direction driving source; 522-adjust the Y-stage; 621-contact.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

The embodiment provides a detection device for an SMA motor, wherein the SMA motor is mainly used in small-stroke, high-speed and high-precision movement. Because the SMA motor is wrapped by the shell, the motion of the SMA motor cannot be detected directly by detecting the motion part so as to detect the motion characteristic of the SMA motor. In the prior art, the device for detecting the motion performance of the SMA motor is complex in structure, the installation and disassembly processes of the SMA motor are not easy to operate in the detection process, and the whole detection process is inconvenient to operate and low in efficiency.

In order to solve the above problem, this embodiment provides an SMA motor detection apparatus, as shown in fig. 1, the SMA motor detection apparatus includes a false lens 1, a detection mechanism 3, a stage 4, and an adjustment mechanism 5. The microscope carrier 4 is used for bearing the SMA motor 2, the false lens 1 is used for being clamped with a moving part of the SMA motor 2 and moving synchronously with the SMA motor, the false lens 1 can reflect a detection signal, the detection mechanism 3 is used for sending the detection signal and receiving the signal reflected by the false lens 1, so that the performance of the SMA motor 2 is judged, and the adjusting mechanism 5 is connected with the microscope carrier 4 and can drive the microscope carrier 4 to move so as to adjust the positions of the SMA motor 2 and the false lens 1.

In this embodiment, the operator places SMA motor 2 on the microscope carrier to install false camera lens 1 in SMA motor 2's moving part, detection mechanism 3 sends detection signal, and false camera lens 1 reflection detection signal transmits detection mechanism 3 with the motion condition with SMA motor 2 moving part, thereby realizes the detection to SMA motor 2 moving performance. False camera lens 1 directly carries out the joint with SMA motor 2, and overall structure is simple, the simple operation improves detection efficiency greatly.

Specifically, as shown in fig. 2 to 3, the false lens 1 includes a mounting base 11 and a lens 12, a plurality of elastic pieces 111 are arranged along a circumferential direction of the mounting base 11, the elastic pieces 111 are used for being clamped with a moving component of the SMA motor 2, the lens 12 is arranged on the mounting base 11, an axis of the lens 12 coincides with an axis of the mounting base 11, and the lens 12 can move together with the SMA motor 2 and transmit a movement condition of the SMA motor 2 by reflecting a detection signal. In this embodiment, the cross sections of the mounting seat 11 and the lens 12 are circular and coaxial, the mounting seat 11 and the elastic sheet 111 are integrally formed, and the mounting seat 11 is made of a plastic material with good elasticity and wear resistance, so that the elastic sheet 111 is connected with the SMA motor 2 in a clamping manner, and the service life of the mounting seat 11 is prolonged.

In order to better fix the lens 12, the false lens 1 further comprises a bracket 13, one end of the bracket 13 is connected with the mounting seat 11, the other end of the bracket 13 is used for bearing the lens 12, the axis of the mounting seat 11, the axis of the lens 12 and the axis of the bracket 13 are collinear, and the mounting seat 11 and the SMA motor 12 are coaxially clamped, so that the lens 12 and the SMA motor 2 are coaxially arranged, and the lens 12 can accurately transmit and reflect the motion state of the SMA motor 2. Specifically, in the embodiment, as shown in fig. 4 to 5, a circular lens groove 133 is provided at the top of the bracket 13, and the lens 12 can be coaxially placed in the lens groove 133 and bonded by glue to fix the lens 12 and the bracket 13; the bottom of the bracket 13 is provided with a connecting column 132, the bottom surface of the mounting seat 11 is provided with a connecting hole 112, and the connecting column 132 is inserted into the connecting hole 112 to fix the bracket 13 and the mounting seat 11. Preferably, there are two connecting holes 112 and two connecting posts 132, and each connecting post 132 is correspondingly inserted into one corresponding connecting hole 112, so that the connecting post 132 can be prevented from rotating relative to the connecting hole 112, and the lens 12 can be better fixed.

The detection mechanism 3 needs to determine the motion condition of the multiple axes of the SMA motor 2 according to the detection signal reflected by the mirror 12, and therefore the mirror 12 needs to be parallel to the motion component of the SMA motor 2, as shown in fig. 5, a plurality of bracket arms 131 are arranged along the circumferential direction of the bracket 13, notches are arranged at corresponding positions of the motion component of the SMA motor 2, the bracket arms 131 are clamped in the notches, and the lower surfaces of the bracket arms 131 are parallel to the upper surfaces of the notches, so that the mirror 12 on the bracket 13 is parallel to the motion component of the SMA motor 2, and the mirror 12 more accurately transmits the motion condition of the SMA motor 2.

When the movement performance of the SMA motor 2 is detected, the SMA motor 2 needs to be fixed on the carrier 4, and in order to facilitate the placement and fixation of the SMA motor 2, as shown in fig. 6, a mounting groove 41 is provided on the carrier 4, and the size and shape of the mounting groove 41 are consistent with the size and shape of the housing of the SMA motor 2, so as to place and fix the SMA motor 2.

In order to facilitate taking and placing of the SMA motor 2, the size of the mounting groove 41 is slightly larger than the size of the housing of the SMA motor 2, so as to fix the SMA motor 2, as shown in fig. 7, at least one clamping mechanism 6 is further provided on the stage 4, the clamping mechanism 6 includes a clamping driving member 61 and an ejector block 62, an output end of the clamping driving member 61 is connected to the ejector block 62, an opening is provided on a side surface of the mounting groove 41, and the clamping driving member 61 can drive the ejector block 62 to extend into the opening and abut against the housing of the SMA motor 2, so as to clamp the SMA motor 2. Specifically, in this embodiment, there are two clamping mechanisms 6, and the two clamping driving members 61 can drive the two ejector blocks 62 to move along the X direction and the Y direction shown in fig. 6 respectively to extend into the opening of the mounting groove 41, so that the two ejector blocks 62 can clamp two perpendicular sides of the SMA motor 2 respectively, and the clamping driving members 61 may be an air cylinder or a linear motor, or may be other components that can drive the ejector blocks 62 to move linearly.

Further, a plurality of contacts 621 are arranged on one side of the top block 62 contacting the SMA motor 2, contacts are arranged on the outer side of the SMA motor 2, and the contacts 621 can abut against the contacts. When the clamping driving member 61 drives the jacking block 62 to clamp the SMA motor 2, the contact 621 on the jacking block 62 contacts with the contact on the SMA motor 2, so as to supply power to the SMA motor 2 and control the SMA motor 2 to move according to a preset condition.

In order to ensure that the top block 62 can accurately extend into the opening of the mounting groove 41 and can slide smoothly, a guide mechanism 7 is arranged between the top block 62 and the carrier 4, the guide mechanism 7 comprises a guide groove and a guide protrusion, one of the top block 62 and the carrier 4 is provided with the guide groove, the other one is provided with the guide protrusion, the guide groove is in sliding fit with the guide protrusion, and a good guide effect is achieved in the process that the SMA motor 2 is tightened when the top block 62 moves. Specifically, in this embodiment, two guide grooves are both disposed on the stage 4 and are respectively arranged along the X direction and the Y direction, two guide protrusions are respectively disposed on the two top blocks 62, and the guide protrusions slide along the guide grooves to realize that the top blocks 62 slide relative to the stage 4; in other embodiments, two guide protrusions may be disposed on the carrier 4 and arranged along the X direction and the Y direction, two guide grooves are disposed on the two top blocks 62, and the guide grooves slide along the guide protrusions to drive the top blocks 62 to slide relative to the carrier 4.

In order to detect the motion condition of the SMA motor 2, the SMA motor detection device further comprises a detection mechanism 3, and the detection mechanism 3 comprises a detection assembly 31. Specifically, in this embodiment, the detection component 31 is a high-speed five-dimensional sensor, the high-speed five-dimensional sensor can send a detection signal, and obtains the motion information of the five axes of the SMA motor 2 through analysis of the reflection signal of the receiving lens 12, and the detection mechanism 3 determines the motion performance of the SMA motor 2 by comparing the detected motion information of the SMA motor with preset motion information.

In the process of detecting the SMA motor 2, the position of the SMA motor 2 needs to be adjusted to correspond to the position of the detection assembly 31, so the SMA motor detection apparatus further includes an adjustment mechanism 5, and the adjustment mechanism 5 includes an X-direction adjustment assembly 51 and a Y-direction adjustment assembly 52.

Specifically, the X-direction adjustment assembly 51 includes an X-direction adjustment drive source 511 and an X-direction adjustment platform 512, the X-direction adjustment platform 512 is connected to the output ends of the stage 4 and the X-direction adjustment drive source 511, and the X-direction adjustment drive source 511 can drive the stage 4, the SMA motor 2, and the false lens 1 to move in the X direction. The Y-direction adjusting assembly 52 comprises an Y-direction adjusting drive source 521 and a Y-direction adjusting platform 522, the Y-direction adjusting platform 522 is respectively connected with the X-direction adjusting platform 512 and the Y-direction adjusting drive source 521, the Y-direction adjusting drive source 521 can drive the X-direction adjusting platform 512 and drive the stage 4, the SMA motor 2 and the false lens 1 to move along the Y direction, and the X direction is perpendicular to the Y direction.

In this embodiment, the X-direction adjustment driving source 511 is disposed on the X-direction adjustment platform 512, a first lead screw nut transmission structure is disposed between the X-direction adjustment platform 512 and the stage 4, the first lead screw is disposed along the X direction, an output end of the X-direction adjustment driving source 511 is connected to the first lead screw, the stage 4 is connected to the first nut, and the X-direction adjustment driving source 511 drives the first lead screw to rotate, so that the first nut drives the stage 4 to move along the X direction, thereby adjusting positions of the SMA motor 2 and the false lens 1 along the X direction.

The Y-direction adjusting driving source 521 is arranged on the Y-direction adjusting platform 522, a second lead screw nut structure is arranged between the Y-direction adjusting platform 522 and the X-direction adjusting platform 512, the second lead screw is arranged along the Y direction, the output end of the Y-direction adjusting driving source 521 is connected with the second lead screw, the X-direction adjusting platform 512 is connected with the second nut, the Y-direction adjusting driving source 521 drives the second lead screw to rotate, the second nut drives the X-direction adjusting platform 512 and the carrying platform 4 to move along the Y direction, and therefore the position of the SMA motor 2 and the position of the false lens 1 along the Y direction are adjusted.

The adjusting X-direction driving source 511 and the adjusting Y-direction driving source 521 may be manually rotated or may be a rotating motor or other structures that can realize driving rotation. In other embodiments, the X-direction adjustment assembly and the Y-direction adjustment assembly may also use standard fine adjustment slides.

The SMA motor detection device has the following working principle:

step 1: the X-direction adjusting unit 51 and the Y-direction adjusting unit 52 are operated to adjust the stage 4 to a proper position;

step 2: the false lens 1 is clamped into the SMA motor 2, and then the SMA motor 2 is placed in the mounting groove 41 on the carrying platform 4;

and step 3: starting the two clamping driving pieces 61 to drive the two top blocks 62 to extend into the openings of the mounting grooves 41 so as to clamp the SMA motor 2, and simultaneously, the contact 621 on the top blocks 62 is abutted to the contact on the SMA motor 2 so as to supply power to the SMA motor 2;

and 4, step 4: the detection assembly 31 sends out a detection signal, and the moving part of the SMA motor 2 drives the false lens 1 to move synchronously according to a preset condition;

and 5: the detection component 31 receives the signal reflected by the mirror 12, converts the signal into actual motion information of the SMA motor 2, and the detection mechanism 3 compares the preset motion of the SMA motor 2 with the detected actual motion condition, thereby determining the operation performance of the SMA motor 2. When a plurality of SMA motors 2 are tested repeatedly, only the steps 2-5 need to be repeated.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims (10)

1. A false lens for SMA motor detection, comprising:

the mounting seat (11) is provided with a plurality of elastic sheets (111) along the circumferential direction of the mounting seat (11), and the elastic sheets (111) are configured to be clamped with the SMA motor (2); and

a lens (12) disposed on the mounting seat (11), wherein the axis of the lens (12) is coincident with the axis of the mounting seat (11), the lens (12) can move together with the SMA motor (2), and the lens (12) can reflect a detection signal for transmitting the movement condition of the SMA motor (2).

2. False lens for SMA motor detection according to claim 1, further comprising a bracket (13), wherein one end of the bracket (13) is disposed on the mounting seat (11), the other end is used for carrying the lens (12), and the axis of the mounting seat (11), the axis of the lens (12) and the axis of the bracket (13) are collinear.

3. The false lens for detecting the SMA motor as recited in claim 2, wherein a plurality of bracket arms (131) are arranged along the circumferential direction of the bracket (13), notches are correspondingly arranged on the moving parts of the SMA motor (2), the bracket arms (131) are clamped in the notches, and the lower surfaces of the bracket arms (131) are parallel to the upper surfaces of the notches.

4. The false lens for detecting the SMA motor according to claim 3, wherein a connecting column (132) is arranged at the lower end of the bracket (13), a connecting hole (112) is arranged on the mounting seat (11), and the connecting column (132) is arranged in the connecting hole (112) in a penetrating manner.

5. An SMA motor detection device, comprising the false lens for SMA motor detection of any one of claims 1-4, further comprising:

a detection mechanism (3) configured to emit a detection signal towards the lens (12) and to receive a signal reflected by the lens (12);

a stage (4) configured to carry the SMA motor (2); and

an adjusting mechanism (5) connected to the stage (4), the adjusting mechanism (5) being configured to drive the stage (4) to move so as to adjust the positions of the SMA motor (2) and the dummy lens (1).

6. The SMA motor detection apparatus according to claim 5, wherein the adjustment mechanism (5) includes an adjustment X-direction unit (51), the adjustment X-direction unit (51) includes an adjustment X-direction drive source (511) and an adjustment X-direction stage (512), the adjustment X-direction stage (512) is connected to output ends of the stage (4) and the adjustment X-direction drive source (511), respectively, and the adjustment X-direction drive source (511) can drive the stage (4), the SMA motor (2), and the dummy lens (1) to move in the X direction.

7. The SMA motor detection apparatus according to claim 6, wherein the adjustment mechanism (5) further includes an adjustment Y-direction component (52), the adjustment Y-direction component (52) includes an adjustment Y-direction drive source (521) and an adjustment Y-direction platform (522), the adjustment Y-direction platform (522) is respectively connected to output ends of the adjustment X-direction platform (512) and the adjustment Y-direction drive source (521), and the adjustment Y-direction drive source (521) can drive the adjustment X-direction platform (512), the stage (4), the SMA motor (2) and the dummy lens (1) to move in a Y direction, wherein the X direction is perpendicular to the Y direction.

8. The SMA motor detection apparatus according to claim 5, wherein a mounting slot (41) is provided on the stage (4), and the mounting slot (41) is configured to accommodate the SMA motor (2).

9. The SMA motor detection device according to claim 8, wherein at least one clamping mechanism (6) is further arranged on the carrier (4), the clamping mechanism (6) comprises a clamping driving piece (61) and a top block (62), an output end of the clamping driving piece (61) is connected to the top block (62), an opening is arranged on the side surface of the installation groove (41), and the clamping driving piece (61) can drive the top block (62) to extend into the opening and abut against the outer shell of the SMA motor (2) so as to clamp the outer shell of the SMA motor (2).

10. The SMA motor detection apparatus according to claim 9, wherein a guide mechanism (7) is disposed between the top block (62) and the stage (4), the guide mechanism (7) includes a guide groove and a guide protrusion, one of the top block (62) and the stage (4) is provided with the guide groove, and the other is provided with the guide protrusion, and the guide groove is slidably engaged with the guide protrusion.

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