Detection jig

Abstract

The utility model provides a detection jig, which comprises a workbench provided with an accommodating space for accommodating a first test piece; the first driving assembly is connected with the workbench and can slide relative to the workbench in the first direction. The second driving assembly is connected with the first driving assembly and can rotate relative to the first driving assembly; the third driving assembly is connected with the second driving assembly and can slide in the length direction of the second driving assembly; and the rotary clamping mechanism is arranged on the third driving assembly and can slide along the second direction relative to the third driving assembly, and the rotary clamping mechanism is used for clamping the second test piece and can rotate. The detection jig can drive the second test piece to move in three directions, the distance and angle between the first test piece and the second test piece can be rapidly and accurately controlled, the accuracy of test position adjustment is guaranteed, and personal errors are avoided; operation is easy and convenient, the whole testing process can be accurately positioned, and testing efficiency is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of detection equipment, and in particular to a detection fixture. Background Art

[0002] Laptop software testing is a crucial step in ensuring proper operation and performance of the computer's software components. Software testing primarily encompasses operating system testing, application testing, stability testing, and security testing. Stylus testing involves controlling the distance between the stylus and the laptop screen to perform hovering positioning tests. This test focuses on the accuracy of the stylus's positioning while hovering and the stability of its functionality. In particular, when drawing lines at a fixed angle between the stylus and the laptop screen, strict precision is required to ensure optimal performance of the stylus and touchscreen. During testing, the distance between the stylus tip and the screen is manually controlled, with hovering positioning simulating user usage scenarios. The performance of the stylus and screen is tested by drawing lines diagonally, horizontally, and vertically on the screen. Statistical measurement data is collected based on the results to determine whether performance meets specification requirements.

[0003] The existing testing method involves using a jig to hold the stylus in place while it's suspended. The jig is then placed on the screen, and the pen tip is adjusted to the test point. Line drawing is primarily manual, with the stylus secured by a large bracket, adjusted, and then drawn. This method, due to inconsistent measurement standards and techniques among different personnel, can easily lead to inaccurate angles and distances between the stylus and the screen, which in turn can affect test data. Furthermore, the jig is unstable when placed on the screen and can slip, affecting the determination of the test point. Furthermore, the line drawing test requires a single, repetitive operation, requiring multiple calibrations of the machine's position and requiring multiple sets of data to be measured each time. Manual measurement is not only prone to errors but also time-consuming and inefficient. Utility Model Content

[0004] The present disclosure provides a detection fixture to at least solve the above technical problems existing in the prior art.

[0005] According to the detection fixture disclosed in the present invention, it includes: a workbench, which is provided with an accommodating space, wherein the accommodating space is used to accommodate a first test piece; a first drive assembly, which is connected to the workbench and can slide relative to the workbench in a first direction; a second drive assembly, which is connected to the first drive assembly and can rotate relative to the first drive assembly around a rotation center; a third drive assembly, which is connected to the second drive assembly and can slide along the length direction of the second drive assembly; and a rotating clamping mechanism, which is provided on the third drive assembly and can slide relative to the third drive assembly in a second direction, wherein the rotating clamping mechanism is used to clamp the second test piece and can rotate around a rotation center.

[0006] In one embodiment, the first driving assembly includes a column, the lower end of the column has a connecting portion, a first guide rail is provided on the workbench, and the connecting portion is slidably connected to the first guide rail.

[0007] In one embodiment, the first drive assembly further includes a sleeve, which is disposed at the upper end of the column. The second drive assembly is rotatably connected to the column via the sleeve, and the rotation center is the axis of the column.

[0008] In one embodiment, the second driving assembly includes a crossbar, the crossbar is connected to the column through the sleeve, and the crossbar and the workbench meet a parallel condition.

[0009] In one embodiment, a first scale plate is provided on the upper end face of the column, and a first indicator portion is provided on the upper surface of the cross bar near one end of the column, and the first indicator portion is configured to indicate that the scale on the first scale plate corresponds to the rotation angle of the cross bar along the rotation center.

[0010] In one embodiment, the third drive assembly includes a vertical rod and a connecting block fixedly connected to the vertical rod, a second guide rail is provided on the cross rod, and the connecting block is slidably connected to the second guide rail; wherein, the vertical rod and the workbench meet the vertical condition.

[0011] In one embodiment, the rotating clamping mechanism includes a clamping assembly, which includes a carrying plate, a fastener and two relatively arranged limiting clamps, the limiting clamps are arranged on the carrying plate, and the fastener is passed through the two limiting clamps; wherein the fastener, the two limiting clamps and the carrying plate enclose a clamping space, and the clamping space is used to accommodate the second test piece.

[0012] In one embodiment, the rotary clamping mechanism further includes a fixed disk slidably connected to the third driving assembly, the supporting disk is rotatably connected to the fixed disk, and the rotation center is the axis of the supporting disk.

[0013] In one embodiment, a second scale plate is provided on the surface of the fixed plate, and a second indicator portion is provided on the carrier plate, wherein the second indicator portion is configured to indicate that the scale on the second scale plate corresponds to the rotation angle of the carrier plate along the rotation center.

[0014] In one embodiment, a control component is further included, and the first drive component, the second drive component, and the third drive component are electrically connected to the control component respectively.

[0015] In the present disclosure, a testing fixture includes a workbench, a first test piece is placed in a receiving space on the workbench, and the testing fixture has a rotary clamping mechanism that can clamp a second test piece and rotate the second test piece around a rotation center to fix and adjust the angle between the second test piece and the first test piece; the rotary clamping mechanism is arranged on a third drive assembly, the third drive assembly is used to drive the rotary clamping mechanism to slide along a second direction, the second drive assembly is used to drive the third drive assembly to slide along the length direction of the second drive assembly, and the first drive assembly is used to drive the second drive assembly to slide along the first direction, thereby driving the second test piece to move to any position above the first test piece. Thus, the first drive assembly, the second drive assembly, the third drive assembly and the rotary clamping mechanism cooperate with each other to drive the second test piece to move in three directions, so as to quickly and accurately control the distance and angle between the first test piece and the second test piece, thereby ensuring the accuracy of the test position adjustment and avoiding human error; the operation is simple, and the entire test process can be automatically and accurately positioned, thereby improving the test efficiency and automation performance.

[0016] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present disclosure, nor are they intended to limit the scope of the present disclosure. Other features of the present disclosure will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other objects, features and advantages of the exemplary embodiments of the present disclosure will become readily understood by reading the detailed description below with reference to the accompanying drawings, in which several embodiments of the present disclosure are shown by way of example and not limitation, wherein:

[0018] In the drawings, the same or corresponding reference numerals denote the same or corresponding parts.

[0019] Figure 1 The overall structure of a detection fixture according to an exemplary embodiment of the present invention is shown. Figure 1 ;

[0020] Figure 2 The overall structure of a detection fixture according to an exemplary embodiment of the present invention is shown. Figure 2 ;

[0021] Figure 3 A schematic structural diagram of the cooperation between the rotary clamping mechanism and the third drive assembly of an exemplary embodiment of the present disclosure is shown.

[0022] Explanation of the numbers in the figure: 1. workbench; 2. first drive assembly; 3. second drive assembly; 4. third drive assembly; 5. rotary clamping mechanism; 6. first test piece; 7. second test piece; 11. accommodating space; 12. first guide rail; 21. column; 22. sleeve; 31. cross bar; 41. vertical bar; 42. connecting block; 51. clamping assembly; 52. fixed disk; 211. first scale plate; 311. first indicating part; 312. second guide rail; 511. carrying disk; 512. fastener; 513. limiting splint; 521. second scale plate; 5111. second indicating part. DETAILED DESCRIPTION

[0023] To make the purposes, features, and advantages of the present disclosure more apparent and understandable, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present disclosure without creative work shall fall within the scope of protection of the present disclosure.

[0024] The embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0025] Reference Figures 1 to 3 As shown, a detection fixture of an exemplary embodiment of the present invention includes a workbench 1, a first drive component 2, a second drive component 3, a third drive component 4 and a rotary clamping mechanism 5. The workbench 1 is provided with an accommodating space 11, which is used to accommodate a first test piece 6. The first drive component 2 is connected to the workbench 1 and can slide relative to the workbench 1 along a first direction. The second drive component 3 is connected to the first drive component 2 and can rotate relative to the first drive component 2 around a rotation center. The third drive component 4 is connected to the second drive component 3 and can slide along the length direction of the second drive component 3. The rotary clamping mechanism 5 is provided on the third drive component 4 and can slide relative to the third drive component 4 along the second direction. The rotary clamping mechanism 5 is used to clamp the second test piece 7 and can rotate around a rotation center.

[0026] In this embodiment, the first test piece 6 is a laptop screen, and the second test piece 7 is a stylus. The accommodating space 11 can be formed by providing a groove on the workbench 1, and the size of the groove is just enough to hold the first test piece 6 without offset. Alternatively, the accommodating space 11 can also be formed by providing multiple retaining walls on the workbench 1, so that the multiple retaining walls enclose the accommodating space 11, and the size of the accommodating space 11 is just enough to hold the first test piece 6 without offset, thereby preventing data deviation caused by abnormal movement of the first test piece 6. The first direction is the X direction or the Y direction in the three-dimensional coordinate system, that is, when the first direction is the X direction in the three-dimensional coordinate system, the first drive component 2 drives the second drive component 3 to move along the width direction of the workbench 1; when the first direction is the Y direction in the three-dimensional coordinate system, the first drive component 2 drives the second drive component 3 to move along the width direction of the workbench 1. In actual application, adaptive design selection can be made as needed. In the embodiments shown in the present disclosure, the first direction is the X direction in the three-dimensional coordinate system, and the second direction is the Z direction in the three-dimensional coordinate system. For example, the first drive assembly 2 is arranged at a position close to the working edge, and the second drive assembly 3 is arranged above the workbench 1 and meets the parallel condition with the workbench 1. Since the second drive assembly 3 can rotate around a rotation center relative to the first drive assembly 2, the second drive assembly 3 rotates in a plane parallel to the workbench 1. The third drive assembly 4 can slide along the length direction of the second drive assembly 3, thereby driving the rotary clamping mechanism 5 to adjust its position in the X direction and the Y direction. The rotary clamping mechanism 5 can slide along the second direction relative to the third drive assembly 4, thereby adjusting the distance between the second test piece 7 and the first test piece 6. During the actual test process, the first test piece 6 can be placed and clamped first, and the first drive component 2, the second drive component 3 and the third drive component 4 can be manually or automatically adjusted according to the test requirements to determine the approximate test position. Then, the second test piece 7 can be fixed to the rotating clamping mechanism 5, and the rotating clamping mechanism 5 can be rotated to make the second test piece 7 and the first test piece 6 form the required angle to achieve the angle requirement between the second test piece 7 and the first test piece 6. Then, by adjusting the position of the rotating clamping mechanism 5 relative to the third drive component 4, the distance between the second test piece 7 and the first test piece 6 can be determined.

[0027] In summary, the detection fixture disclosed in the present invention includes a workbench 1, and the first test piece 6 is placed in the accommodating space 11 of the workbench 1. Since the detection fixture has a rotating clamping mechanism 5, it can clamp the second test piece 7 and rotate the second test piece 7 around a rotation center to fix and adjust the angle between the second test piece 7 and the first test piece 6; the rotating clamping mechanism 5 is arranged on the third drive component 4, and the third drive component 4 is used to drive the rotating clamping mechanism 5 to slide along the second direction, the second drive component 3 is used to drive the third drive component 4 to slide along the length direction of the second drive component 3, and the first drive component 2 is used to drive the second drive component 3 to slide along the first direction, thereby driving the second test piece 7 to move to any position above the first test piece 6. Therefore, the first drive component 2, the second drive component 3, the third drive component 4 and the rotary clamping mechanism 5 cooperate with each other to drive the second test piece 7 to move in three directions, so as to quickly and accurately control the distance and angle between the first test piece 6 and the second test piece 7, thereby ensuring the accuracy of the test position adjustment and avoiding human errors; it is easy to operate, and can automate and accurately position the entire test process, thereby improving test efficiency and automation performance.

[0028] In one embodiment, the detection fixture further includes a control component, and the first drive component 2 , the second drive component 3 , and the third drive component 4 are electrically connected to the control component respectively.

[0029] In this embodiment, the control component can be specifically a micro motor, which is arranged in the first drive component 2. The control component uses programming to accurately control the sliding test trajectory of the first drive component 2, the second drive component 3, and the third drive component 4, as well as the angle between the second test piece 7 and the first test piece 6. This allows matching with different models of computers during testing. A large number of repeated test steps are performed through programming control, which improves work efficiency, reduces manual workload, and can highly match the test step process. In addition, there is room for manual operation and calibration. When automatic control is not required, manual operation can be performed immediately. At this time, the control component can play a role in assisting manual operation.

[0030] In one embodiment, the first driving assembly 2 includes a column 21 , a connecting portion is provided at a lower end of the column 21 , a first guide rail 12 is provided on the workbench 1 , and the connecting portion is slidably connected to the first guide rail 12 .

[0031] In this embodiment, the pillar 21 can be a cylindrical pillar 21, and the first guide rail 12 can be a concave rail. Accordingly, the connecting portion is a convex portion that is locked in the concave rail; alternatively, the first guide rail 12 can be a convex portion. Accordingly, the connecting portion is a concave rail that is mutually locked with the convex portion. It is understood that the first guide rail 12 can also be a slide rail provided on the workbench 1, and the connecting portion can be adaptively designed according to the first guide rail 12.

[0032] In one embodiment, the first drive assembly 2 further includes a sleeve 22 , which is disposed at the upper end of the column 21 . The second drive assembly 3 is rotatably connected to the column 21 via the sleeve 22 , with the rotation center being the axis of the column 21 .

[0033] Furthermore, in one embodiment, the second drive assembly 3 includes a crossbar 31 connected to the column 21 via a sleeve 22. The crossbar 31 is parallel to the workbench 1. The column 21 is connected to the crossbar 31 via the sleeve 22, supporting the rotation of the crossbar 31 to determine the test angle. The rolling motion of the sleeve 22 reduces friction and wear, allowing the sleeve 22 and column 21 to maintain high rotational accuracy. The sleeve 22 and column 21 can be separated for easy installation and maintenance.

[0034] In one embodiment, a first dial 211 is provided on the upper end surface of the column 21, and a first indicator portion 311 is provided on the upper surface of the cross bar 31 close to the column 21. The first indicator portion 311 is configured to indicate that the scale on the first dial 211 corresponds to the rotation angle of the cross bar 31 along the rotation center.

[0035] In this embodiment, the first scale plate 211 is used to calibrate the rotation angle of the crossbar 31. It can be defined that when the crossbar 31 is perpendicular to the first direction, the scale indicated by the first indicator portion 311 is 0°. In this case, the clockwise or counterclockwise rotation angle of the crossbar 31 around the rotation center is a corresponding positive or negative rotation angle, respectively. Alternatively, it can be defined that when the crossbar 31 is perpendicular to the first direction, the scale indicated by the first indicator portion 311 is 90°. In this case, the clockwise or counterclockwise rotation angle of the crossbar 31 around the rotation center is a corresponding increase or decrease in the rotation angle of 90°, respectively.

[0036] In one embodiment, the third driving assembly 4 includes a vertical rod 41 and a connecting block 42 fixedly connected to the vertical rod 41. The crossbar 31 is provided with a second guide rail 312. The connecting block 42 is slidably connected to the second guide rail 312. The vertical rod 41 and the workbench 1 meet the vertical condition.

[0037] In this embodiment, the second guide rail 312 can be a concave rail, and accordingly, the connecting block 42 is provided with a convex portion that is locked within the concave rail; alternatively, the second guide rail 312 can be a convex portion, and accordingly, the connecting block 42 is provided with a concave rail that engages with the convex portion. It is understood that the second guide rail 312 can also be a slide rail provided on the crossbar 31, and the connecting block 42 can be adaptively designed according to the second guide rail 312.

[0038] In one embodiment, the rotary clamping mechanism 5 includes a clamping assembly 51, which includes a carrier plate 511, a fastener 512, and two opposing position-limiting clamping plates 513. The position-limiting clamping plates 513 are disposed on the carrier plate 511, and the fastener 512 passes through the two position-limiting clamping plates 513. The fastener 512, the two position-limiting clamping plates 513, and the carrier plate 511 enclose a clamping space for accommodating the second test piece 7.

[0039] In this embodiment, only a relatively simple and easy-to-operate clamping assembly 51 is provided. The second test piece 7 is fixed within the clamping space by adjusting the fastening relationship between the fastener 512 and the two limiting clamps 513. It is understood that the clamping assembly 51 may also include a clamping claw, a fixture, or other clamping structure, and achieve clamping and releasing of the second test piece 7 through mechanical, hydraulic, actuation, or electromagnetic means.

[0040] In one embodiment, the rotary clamping mechanism 5 further includes a fixed plate 52 slidably connected to the third driving assembly 4 , and the supporting plate 511 is rotatably connected to the fixed plate 52 , with the rotation center being the axis of the supporting plate 511 .

[0041] In this embodiment, the vertical rod 41 is provided with a concave track, and correspondingly, the fixed plate 52 is provided with a convex portion that is locked in the concave track; alternatively, the vertical rod 41 is provided with a convex portion, and correspondingly, the fixed plate 52 is provided with a concave track with the convex portions interlocking with each other. It is understood that the connection between the fixed plate 52 and the vertical rod 41 can also be provided by providing a slide rail on the vertical rod 41, and the fixed plate 52 can be adaptively designed according to the structure of the vertical rod 41.

[0042] In one embodiment, a second scale plate 521 is provided on the surface of the fixed plate 52, and a second indicating portion 5111 is provided on the carrier plate 511. The second indicating portion 5111 is configured to indicate that the scale on the second scale plate 521 corresponds to the rotation angle of the carrier plate 511 along the rotation center.

[0043] In this embodiment, the second scale plate 521 is used to calibrate the rotation angle of the carrier plate 511. It can be defined that when the clamped second test piece 7 and the second direction meet the parallel condition, the scale indicated by the second indicator portion 5111 is 0°. At this time, the angle of rotation of the carrier plate 511 around the rotation center clockwise or counterclockwise is respectively a corresponding positive angle or negative angle. It can also be defined that when the clamped second test piece 7 and the second direction meet the parallel condition, the scale indicated by the second indicator portion 5111 is 90°. At this time, the angle of rotation of the carrier plate 511 around the rotation center clockwise or counterclockwise is respectively an increase or decrease of the corresponding angle of rotation on the basis of 90°. It is understandable that the second scale plate 521 can also be set on the carrier plate 511, and accordingly, the second indicator portion 5111 is set on the fixed plate 52, which will not be described in detail here.

[0044] In the description of the present disclosure, it should be understood that the orientation or positional relationship indicated by the directional words is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present disclosure and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present disclosure; the directional words "inside" and "outside" refer to the inside and outside relative to the outline of each component itself.

[0045] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between one or more components or features shown in the figures and other components or features. It should be understood that spatially relative terms include not only the orientation of the components as described in the figures, but also different orientations during use or operation. For example, if the components in the drawings are inverted as a whole, the situation where the components are "above other components or features" or "above other components or features" will include the situation where the components are "below other components or structures" or "below other components or structures". Thus, the exemplary term "above" may include both the orientations "above" and "below". In addition, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this document is intended to include all of these situations.

[0046] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present disclosure. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, parts, components and / or combinations thereof.

[0047] It should be noted that the terms "first," "second," and the like in the specification and claims of the present disclosure and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the present disclosure described herein can be implemented in an order other than that illustrated or described herein.

[0048] The present disclosure has been described through the above-described embodiments, but it should be understood that the above-described embodiments are for illustrative and illustrative purposes only and are not intended to limit the present disclosure to the described embodiments. In addition, it will be understood by those skilled in the art that the present disclosure is not limited to the above-described embodiments, and that various variations and modifications may be made based on the teachings of the present disclosure, all of which fall within the scope of protection claimed by the present disclosure. The scope of protection of the present disclosure is defined by the appended claims and their equivalents.

Claims

1. A detection fixture, characterized in that: include: A workbench (1) is provided with an accommodating space (11), wherein the accommodating space (11) is used to accommodate a first test piece (6); a first driving assembly (2), connected to the workbench (1) and capable of sliding relative to the workbench (1) along a first direction; a second drive assembly (3) connected to the first drive assembly (2) and capable of rotating relative to the first drive assembly (2) around a rotation center; a third drive assembly (4), connected to the second drive assembly (3) and capable of sliding along the length direction of the second drive assembly (3); as well as A rotary clamping mechanism (5) is provided on the third drive assembly (4) and is capable of sliding relative to the third drive assembly (4) along a second direction. The rotary clamping mechanism (5) is used to clamp a second test piece (7) and is capable of rotating around a rotation center.

2. The detection fixture according to claim 1, characterized in that: The first driving assembly (2) comprises a column (21), the lower end of the column (21) has a connecting portion, a first guide rail (12) is provided on the workbench (1), and the connecting portion is slidably connected to the first guide rail (12).

3. The detection fixture according to claim 2, characterized in that: The first drive assembly (2) further comprises a sleeve (22), wherein the sleeve (22) is arranged at the upper end of the column (21), and the second drive assembly (3) is rotatably connected to the column (21) via the sleeve (22), and the rotation center is the axis of the column (21).

4. The detection fixture according to claim 3, characterized in that: The second driving assembly (3) comprises a crossbar (31), the crossbar (31) is connected to the column (21) via the sleeve (22), and the crossbar (31) and the workbench (1) meet a parallel condition.

5. The detection fixture according to claim 4, characterized in that: A first scale plate (211) is provided on the upper end surface of the column (21), and a first indicator portion (311) is provided on the upper surface of the cross bar (31) at one end close to the column (21), wherein the first indicator portion (311) is configured to indicate that the scale on the first scale plate (211) corresponds to the rotation angle of the cross bar (31) along the rotation center.

6. The detection fixture according to claim 4, characterized in that: The third driving assembly (4) comprises a vertical rod (41) and a connecting block (42) fixedly connected to the vertical rod (41); a second guide rail (312) is provided on the cross rod (31); the connecting block (42) is slidably connected to the second guide rail (312); wherein the vertical rod (41) and the workbench (1) meet a vertical condition.

7. The detection fixture according to claim 1, characterized in that: The rotary clamping mechanism (5) comprises a clamping assembly (51), the clamping assembly (51) comprising a carrier plate (511), a fastener (512) and two position-limiting clamping plates (513) arranged opposite to each other, the position-limiting clamping plates (513) being arranged on the carrier plate (511), and the fastener (512) being passed through the two position-limiting clamping plates (513); wherein the fastener (512), the two position-limiting clamping plates (513) and the carrier plate (511) enclose a clamping space, and the clamping space is used to accommodate the second test piece (7).

8. The detection fixture according to claim 7, characterized in that: The rotary clamping mechanism (5) further comprises a fixed disk (52) slidably connected to the third driving assembly (4); the supporting disk (511) is rotatably connected to the fixed disk (52); and the rotation center is the axis of the supporting disk (511).

9. The detection fixture according to claim 8, characterized in that: A second scale plate (521) is provided on the surface of the fixed plate (52), and a second indicating portion (5111) is provided on the carrier plate (511), wherein the second indicating portion (5111) is configured to indicate that the scale on the second scale plate (521) corresponds to the rotation angle of the carrier plate (511) along the rotation center.

10. The detection fixture according to claim 1, characterized in that: It also includes a control component, and the first drive component (2), the second drive component (3) and the third drive component (4) are electrically connected to the control component respectively.

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