Locking structure

Abstract

The application provides a locking structure, comprising a mounting plate, the mounting plate having a first plate surface and a second plate surface connected with the first plate surface; a moving plate movably connected with the first plate surface; a locking assembly arranged on the moving plate, the locking assembly being used for connecting with a fastener to drive the fastener to rotate; a connecting plate connected with the second plate surface; and a distance sensor arranged on the connecting plate, the distance sensor being used for sensing the distance between the moving plate and the distance sensor. The locking structure of the application solves the problem that the locking structure in the prior art cannot guarantee the precision during locking operation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of locking, in particular to a locking structure. BACKGROUND

[0002] With the development of automation, the simple and repetitive production operation of "screwing" has also been automated. In the prior art, the locking operation of screws and other components is an indispensable part of the automation industry and has important process significance that cannot be replaced.

[0003] However, the existing automated locking operation, although gradually realizes complete automation from handheld pneumatic electric screwdrivers to automatic locking of single-specification screws and to universal locking mechanisms, the degree of locking of nuts and other components during locking operation cannot be accurately obtained for different specifications of screws, and the working efficiency and precision of the locking structure need to be improved. SUMMARY

[0004] The main purpose of the present application is to provide a locking structure to solve the problem that the locking structure in the prior art cannot guarantee precision during locking operation.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present application, a locking structure is provided, comprising: a mounting plate having a first plate surface and a second plate surface connected with the first plate surface; a moving plate movably connected with the first plate surface; a locking assembly provided on the moving plate, the locking assembly being used for connecting with a fastener to drive the fastener to rotate; a connecting plate connected with the second plate surface; and a distance sensor provided on the connecting plate, the distance sensor being used for sensing the distance between the moving plate and the distance sensor.

[0006] Further, the first plate surface and the second plate surface are arranged perpendicular to each other; and / or, the connecting plate comprises a first connecting plate and a second connecting plate connected with each other, the first connecting plate and the second connecting plate are arranged perpendicular to each other to connect the connecting plate with the mounting plate by threading the fastener onto the first connecting plate; and the distance sensor is arranged on the second connecting plate.

[0007] Further, the moving plate comprises a third plate surface connected with the locking assembly and a fourth plate surface connected with the third plate surface, the third plate surface and the fourth plate surface are arranged perpendicular to each other, and the distance sensor senses the distance between the moving plate and the distance sensor by emitting a light beam to the fourth plate surface.

[0008] Further, the moving plate has a mounting groove, and the locking assembly comprises: a motor mounting plate, which is inserted into the mounting groove and connected with the moving plate; a speed reducer, which is arranged on the motor mounting plate; a driving motor, of which an output shaft is connected with an input end of the speed reducer; and a locking sleeve, which is connected with an output end of the speed reducer to drive the locking sleeve to rotate by the driving motor.

[0009] Further, the locking assembly comprises: a sleeve, of which one end is connected with the output end of the speed reducer and the other end is connected with the locking sleeve, and the locking sleeve has a vacuum channel; and a vacuum component, which is sleeved on the sleeve and has a vacuum cavity in communication with the vacuum channel; and a gas connector, which is arranged on the vacuum component to extract gas in the vacuum cavity through the gas connector.

[0010] Further, the sleeve is provided with a gas hole in communication with the vacuum cavity, the vacuum component is provided with two sealing components, the gas hole is located between the two sealing components, and the two sealing components are used for sealing the sleeve and the vacuum component.

[0011] Further, the locking assembly comprises a connecting bracket, which is connected with the motor mounting plate, and the connecting bracket comprises a first fixing plate connected with the motor mounting plate and a second fixing plate connected with the vacuum component, the first fixing plate and the second fixing plate are arranged at intervals, the vacuum component is provided with a bearing component, an outer ring of the bearing component is connected with the vacuum component, and an inner ring of the bearing component is connected with the sleeve.

[0012] Further, the locking assembly comprises a mounting bracket, which is connected with the motor mounting plate, and the mounting bracket is provided with an induction switch, the locking assembly comprises a connecting sleeve, of which one end is connected with the output end of the speed reducer and the other end is detachably connected with the sleeve, the connecting sleeve is sleeved with an induction slice, the induction slice is provided with a notch matched with the induction switch, and when the connecting sleeve is rotated to a preset position, the notch triggers the induction switch to send a signal.

[0013] Further, the locking structure further comprises: a fixed block, which is arranged on the mounting plate and spaced apart from the moving plate; a connecting shaft, of which one end is connected with the fixed block and the other end is connected with the moving plate; and an elastic member, which is sleeved on the connecting shaft, of which one end is connected with the fixed block and the other end is connected with the moving plate; wherein the connecting shaft is movably connected with the moving plate to adjust the distance between the fixed block and the moving plate by rotating the connecting shaft.

[0014] Further, the mounting plate is provided with a sliding rail, the moving plate is provided with a sliding block, the sliding block is movably connected with the sliding rail in opposite directions; and / or the locking assembly is multiple, and the multiple locking assemblies are arranged in a direction perpendicular to the moving direction of the moving plate.

[0015] Furthermore, the locking structure also includes: a camera mounting plate, which is connected to the mounting plate; a camera is mounted on the camera mounting plate; a light source mounting bracket, which has a connecting groove to connect the camera mounting plate and the light source mounting bracket by inserting fasteners through the connecting groove and the camera mounting plate; an illumination component is mounted on the light source mounting bracket, which has a ring structure and has a clearance hole to avoid the camera.

[0016] The present invention provides a locking structure comprising a mounting plate having a first plate surface and a second plate surface connected to the first plate surface; a movable plate movably connected to the first plate surface; a locking assembly disposed on the movable plate for connecting to a fastener to drive the fastener to rotate; a connecting plate connected to the second plate surface; and a distance sensor disposed on the connecting plate for sensing the distance between the movable plate and the distance sensor. With this configuration, when the locking assembly is used for locking operations, it receives the reaction force from the fastener, such as a nut, pushing it to move, which in turn moves the movable plate. At this time, by using the distance sensor, the downward pressure distance of the locking assembly during the locking operation can be measured. Based on the moving distance of the movable plate and parameters such as different thread counts, the number of rotations of the locking assembly can be calculated, resulting in a precise locking result. This solves the problem that existing locking structures cannot guarantee accuracy during locking operations. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0018] Figure 1 A schematic diagram of the internal structure of an embodiment of the locking component of the locking structure of the present invention is shown;

[0019] Figure 2 It shows Figure 1 A partial enlarged view of part I of the locking structure of the present invention;

[0020] Figure 3 A schematic diagram of the external structure of the locking assembly of the locking structure of the present invention is shown from one perspective;

[0021] Figure 4 A schematic diagram of the external structure of the locking assembly of the locking structure of the present invention is shown from another perspective;

[0022] Figure 5 A schematic structural diagram of a fixed component of the locking structure of the present invention is shown from one perspective.

[0023] Figure 6A schematic diagram of the fixing component of the locking structure of the present invention is shown from another perspective.

[0024] Figure 7 A schematic diagram of another embodiment of the fastening assembly of the locking structure of the present invention is shown;

[0025] Figure 8 A schematic diagram of the locking structure of the present invention is shown.

[0026] The above figures include the following reference numerals:

[0027] 1. Fixing component; 101. Fixing block; 2. Locking component; 3. Module connection plate; 4. Moving plate; 41. Third plate surface; 42. Fourth plate surface; 5. Camera mounting plate; 6. Camera fixing plate; 7. Light source mounting bracket; 8. Lighting component; 9. Camera; 10. Reinforcing rib plate; 11. Module mounting plate; 12. Mounting plate; 121. Fixing block; 121. First plate surface; 122. Second plate surface; 13. Connecting shaft; 14. Elastic element; 15. Slide rail; 16. Slider; 17. Mounting groove; 18. Connecting plate; 181. First connection 182. Second connecting plate; 19. Distance sensor; 20. Beam; 21. Drive motor; 22. Reducer; 23. Motor mounting plate; 24. Connecting bracket; 241. First fixing plate; 242. Second fixing plate; 25. Connecting sleeve; 26. Vacuum component; 27. Sleeve; 271. Vacuum channel; 28. Locking sleeve; 29. ​​Air pipe connector; 30. Mounting bracket; 31. Inductive switch; 32. Inductive slice; 33. Suction cup; 34. Return spring; 35. Sealing component; 36. Bearing component; 37. Vacuum chamber. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] See Figures 1 to 8The locking structure of this embodiment includes: a mounting plate 12 having a first plate surface 121 and a second plate surface 122 connected to the first plate surface 121; a movable plate 4 movably connected to the first plate surface 121; a locking assembly 2 disposed on the movable plate 4 for connecting to a fastener to drive the fastener to rotate; a connecting plate 18 connected to the second plate surface 122; and a distance sensor 19 disposed on the connecting plate 18 for sensing the distance between the movable plate 4 and the distance sensor 19. With the above configuration, when the locking assembly 2 is used for locking operations, the locking assembly 2 receives the reaction force from the fasteners such as nuts, which pushes the locking assembly 2 to move, thereby driving the moving plate 4 to move. At this time, by setting the distance sensor 19, the downward pressure distance of the locking assembly 2 during the locking operation can be measured. Based on the moving distance of the moving plate 4 and parameters such as different screw threads, the number of rotations of the locking assembly 2 can be calculated to obtain an accurate locking result. This solves the problem that the locking structure in the prior art cannot guarantee accuracy during the locking operation.

[0030] See Figure 6 In the locking structure of this embodiment, the first plate surface 121 and the second plate surface 122 are arranged perpendicularly to each other; and / or, the connecting plate 18 includes a first connecting plate 181 and a second connecting plate 182 that are connected to each other, the first connecting plate 181 and the second connecting plate 182 are arranged perpendicularly to each other, so that the connecting plate 18 is connected to the mounting plate 12 by fasteners passing through the first connecting plate 181; the distance sensor 19 is disposed on the second connecting plate 182.

[0031] See Figure 1 In the locking structure of this embodiment, the movable plate 4 includes a third plate surface 41 connected to the locking assembly 2 and a fourth plate surface 42 connected to the third plate surface 41. The third plate surface 41 and the fourth plate surface 42 are arranged perpendicular to each other. The distance sensor 19 senses the distance between the movable plate 4 and the distance sensor 19 by emitting a light beam 20 toward the fourth plate surface 42.

[0032] In the locking structure of this embodiment, see Figure 5 , Figure 6 The movable plate 4 has a mounting slot, and the locking assembly 2 includes: a motor mounting plate 23, which is inserted into the mounting slot and connected to the movable plate 4; a reducer 22, which is mounted on the motor mounting plate 23; a drive motor 21, whose output shaft is connected to the input end of the reducer 22; and a locking sleeve 28, which is connected to the output end of the reducer 22 so that the locking sleeve 28 can be driven to rotate by the drive motor 21.

[0033] See Figures 1 to 4In the locking structure of this embodiment, the locking assembly 2 includes: a sleeve 27, one end of which is connected to the output end of the reducer 22, and the other end of which is connected to the locking sleeve 28, the locking sleeve 28 having a vacuum channel 271; a vacuum component 26, which is sleeved on the sleeve 27, and has a vacuum chamber 37 communicating with the vacuum channel; and a gas pipe connector 29, which is disposed on the vacuum component 26 to extract gas from the vacuum chamber 37.

[0034] In the locking structure of this embodiment, see Figure 1 , Figure 2 The sleeve 27 is provided with an air hole that communicates with the vacuum chamber 37. The vacuum component 26 is provided with two sealing components 35. The air hole is located between the two sealing components 35. The two sealing components 35 are used to seal the sleeve 27 and the vacuum component 26.

[0035] See Figures 1 to 4 In the locking structure of this embodiment, the locking component 2 includes a connecting bracket 24, which is connected to the motor mounting plate 23. The connecting bracket 24 includes a first fixing plate 241 connected to the motor mounting plate 23 and a second fixing plate 242 connected to the vacuum component 26. The first fixing plate 241 and the second fixing plate 242 are arranged at intervals. A bearing component 36 is provided inside the vacuum component 26. The outer ring of the bearing component 36 is connected to the vacuum component 26, and the inner ring of the bearing component 36 is connected to the sleeve 27.

[0036] In the locking structure of this embodiment, see Figure 1 , Figure 2 The locking assembly 2 includes a mounting bracket 30, which is connected to the motor mounting plate 23. A sensor switch 31 is provided on the mounting bracket 30. The locking assembly 2 includes a connecting sleeve 25, one end of which is connected to the output end of the reducer 22, and the other end of which is detachably connected to the sleeve 27. A sensor slice 32 is fitted on the connecting sleeve 25. The sensor slice 32 has a notch that cooperates with the sensor switch 31. When the connecting sleeve 25 rotates to a preset position, the notch triggers the sensor switch 31, thereby sending a signal through the sensor switch 31.

[0037] See Figure 7In the locking structure of this embodiment, the locking structure further includes: a fixing block 101, which is disposed on the mounting plate 12, and a movable plate 4 is disposed at a distance from the fixing block 101; a connecting shaft 13, one end of which is connected to the fixing block 101, and the other end of which is connected to the movable plate 4; and an elastic member 14, which is sleeved on the connecting shaft 13, one end of which is connected to the fixing block 101, and the other end of which is connected to the movable plate 4; wherein the connecting shaft 13 is movably connected to the movable plate 4 so that the distance between the fixing block 101 and the movable plate 4 can be adjusted by rotating the connecting shaft 13.

[0038] See Figure 7 In the locking structure of this embodiment, a slide rail 15 is provided on the mounting plate 12, and a slider 16 is provided on the moving plate 4. The slider 16 is movably connected to the slide rail 15; and / or, there are multiple locking components 2, which are arranged in a direction perpendicular to the moving direction of the moving plate 4.

[0039] In the locking structure of this embodiment, see Figure 5 , Figure 6 The locking structure also includes: a camera mounting plate 6, which is connected to the mounting plate 12; a camera is mounted on the camera mounting plate 6; a light source mounting bracket 7, which has a connecting groove so that the camera mounting plate 12 and the light source mounting bracket 7 can be connected by fasteners passing through the connecting groove and the camera mounting plate 12; an illumination component 8 is mounted on the light source mounting bracket 7, which has a ring structure and an avoidance hole for avoiding the camera.

[0040] Example 1:

[0041] Two sets of locking components 2 are installed on the fixed component 1; the locking components 2 are fixed to the fixed component 1 by the movable plate 4.

[0042] In this patent, the locking assembly 2, lighting component 8, and camera 9 serve a visual guidance and positioning function, and are fixedly connected to the fixing assembly 1 by the camera mounting plate 5, camera fixing plate 6, and light source mounting bracket 7. The spatial position of the lighting component 8 and camera 9 can be moved within a small range, which is achieved by the reserved elongated hole.

[0043] The module connection plate 3, reinforcing rib plate 10, and module mounting plate 11 constitute the connection platform of this mechanism. The module connection plate 3 can be connected to external moving parts such as robots, cylinders, and transfer modules, thereby realizing the versatility of the entire mechanism platform. Furthermore, the number of locking components 2 can be appropriately increased or decreased according to different working conditions.

[0044] Example 2:

[0045] All components are directly or indirectly mounted on the mounting plate 12, which is fixed to the module mounting plate 11 and positioned by pins to achieve high positioning accuracy.

[0046] Two slide rails 15 are fixed on the mounting plate 12, which has positioning grooves to improve the positioning accuracy of the slide rails 15. Two sliders 16 are mounted on the slide rails 15, and their other ends are fixed to the mounting grooves 17, so that the mounting grooves 17 can slide up and down along the slide rails 15.

[0047] The connecting plate 18 is fixed to the bottom of the mounting plate 12, and the other end is fixed to the distance sensor 19. The function of the distance sensor 19 is to emit the beam 20 and continuously provide real-time feedback on the distance value between the distance sensor 19 and the mounting groove 17.

[0048] A long screw with a thread at one end of the connecting shaft 13. The other end of the connecting shaft 13 is connected to the mounting groove 17. By tightening one end to bring the mounting groove 17 closer to the mounting plate 12, the deformation of the elastic element 14 is compressed, thereby changing the elasticity of the elastic element 14.

[0049] Example 3:

[0050] All components are directly or indirectly mounted on the mounting plate 12, which is fixed to the module mounting plate 11 and positioned by pins to achieve high positioning accuracy.

[0051] Example 4:

[0052] The drive motor 21 and reducer 22 are the power output sources of the entire mechanism. Currently, there is mature control technology to achieve three-stage locking torque to ensure the different process requirements of locking nut engagement, tightening, and loosening.

[0053] One end of the motor mounting plate 23 is connected to the mounting slot 17. The connecting bracket 24 is connected to the motor mounting plate 23, and the pin positioning improves the positioning accuracy.

[0054] The vacuum component 26 is fixed on the connecting bracket 24 and is coaxial with the reducer 22 and the connecting sleeve 25. The sleeve 27 passes through the vacuum component 26 and is connected at one end to the connecting sleeve 25. The connecting sleeve 25 is connected to the reducer 22 to realize the transmission function.

[0055] The sleeve 27 is a hollow shaft with through-hole slots. When it passes through the vacuum component 26, the through-holes are positioned precisely between the vacuum chambers 37, thus connecting the sleeve to the vacuum chambers 37. Two air pipe connectors 29 are fixed to the vacuum component 26, with their other ends connected to the vacuum component 26. Vacuum breaking is achieved through external components such as vacuum solenoid valves and vacuum generators.

[0056] The vacuum component 26 consists of two parts, upper and lower, each with two sealing components 35 forming a seal. Each part has a bearing component 36 for fixing the sleeve 27.

[0057] When the connecting bracket 24 is pushed upward manually, the return spring 34 is compressed, and the ball on it pops out and disengages from the groove on the connecting sleeve 25, so that the connecting sleeve 25 can be quickly disassembled.

[0058] The induction slice 32 is fixed to the connecting sleeve 25 and rotates with the connecting sleeve 25. The upper part of the connecting sleeve 25 is keyed to the shaft of the reducer 22 and locked with a set screw to ensure stable transmission. The induction slice 32 has a notch. After one rotation, the notch rotates to the induction switch 31 and emits a detection signal to detect the total number of rotations of the nut.

[0059] The entire mechanism is driven by the rotation of the reducer 22's shaft, which in turn rotates the connecting sleeve 25 and the induction slice 32. The sleeve 27 also rotates with the connecting sleeve 25, and the locking sleeve 28 rotates along with the sleeve 27. The locking sleeve 28 is connected to the sleeve 27 using a reverse thread method and secured with a set screw to prevent it from falling off during nut tightening. The locking sleeve 28 uses a standard hexagonal nut head.

[0060] The suction cup 33 connects to the inner channel of the sleeve 27, serving to conduct vacuum air. The other end of the suction cup 33 is used to hold the nut for vacuum material removal. Before tightening the nut to the designated position, ensure that the nut and sleeve 27 are relatively fixed.

[0061] Example 5:

[0062] In the locking structure of this embodiment, a movable platform is provided mounted on the module connection plate 3 to move the entire mechanism.

[0063] After the locking sleeve 28 reaches the designated nut picking position, the suction cup 33 picks up the nut. The movable carrier then moves back to the designated position and gradually presses down towards the attached nut. The elastic element 14 acts as a buffer at this time and operates under a pre-adjusted elastic force.

[0064] The drive motor 21 and reducer 22 start working, driving the sleeve 27 to rotate, and the suction cup 33 begins to loosen the nut.

[0065] The nut is locked in the designated position via segmented servo locking torque control on module connection board 3. During this process, distance sensor 19 continuously outputs return distance information to ensure the nut is properly locked. Inductive switch 31 counts the number of rotations and determines if it matches the predetermined tightening number. If the locking is not satisfactory, the equipment stops alarming.

[0066] This platform is adaptable to various nut sizes and torque ranges; only the size ratio of the motor and reducer needs to be changed, along with the corresponding locking sleeve, to achieve model changeover. For different working conditions, different mounting holes can be pre-drilled on the module connection plate 3.

[0067] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects:

[0068] The locking structure of this invention replaces manual locking, improving work efficiency.

[0069] The locking structure of this invention has high compatibility and is applicable to nuts of various specifications.

[0070] The locking structure of this invention can be mounted on a variety of transplanting platforms, adapting to a variety of different locking environments.

[0071] The locking structure of this invention uses multiple sensors for detection and feedback, which improves the reliability of traditional locking mechanisms.

[0072] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0073] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0074] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms 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 should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0075] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotating the camera 90 degrees or being in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0076] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0077] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A locking structure, characterized in that, include: Mounting plate (12), the mounting plate (12) having a first plate surface (121) and a second plate surface (122) connected to the first plate surface (121); The movable plate (4) is movably connected relative to the first plate surface (121); A locking assembly (2) is disposed on the movable plate (4) and is used to connect with a fastener to drive the fastener to rotate; A connecting plate (18) is connected to the second plate surface (122); A distance sensor (19) is disposed on the connecting plate (18), and the distance sensor (19) is used to sense the distance between the moving plate (4) and the distance sensor (19); The movable plate (4) has a mounting slot (17), and the locking assembly (2) includes: A motor mounting plate (23) is inserted into the mounting slot, and the motor mounting plate (23) is connected to the movable plate (4); A speed reducer (22) is mounted on the motor mounting plate (23); A drive motor (21) is provided, the output shaft of which is connected to the input end of the reducer (22); A locking sleeve (28) is connected to the output end of the reducer (22) so as to drive the locking sleeve (28) to rotate through the drive motor (21); A sleeve (27) is provided, one end of which is connected to the output end of the reducer (22), and the other end of which is connected to the locking sleeve (28). The locking sleeve (28) has a vacuum channel (271). Vacuum component (26), which is sleeved on the sleeve (27), has a vacuum cavity (37) communicating with the vacuum channel. A gas pipe connector (29) is provided on the vacuum component (26) to extract gas from the vacuum chamber (37) through the gas pipe connector (29); Mounting bracket (30) is connected to motor mounting plate (23). Mounting bracket (30) is provided with inductive switch (31). Locking assembly (2) includes connecting sleeve (25). One end of connecting sleeve (25) is connected to the output end of reducer (22). The other end of connecting sleeve (25) is detachably connected to sleeve (27). Inductive slice (32) is provided on connecting sleeve (25). Inductive slice (32) is provided with notch that cooperates with inductive switch (31). When connecting sleeve (25) rotates to a preset position, notch triggers inductive switch (31), thereby sending a signal through inductive switch (31).

2. The locking structure according to claim 1, characterized in that, The first plate surface (121) and the second plate surface (122) are arranged perpendicular to each other; and / or, The connecting plate (18) includes a first connecting plate (181) and a second connecting plate (182) that are connected to each other. The first connecting plate (181) and the second connecting plate (182) are arranged perpendicular to each other so that the connecting plate (18) is connected to the mounting plate (12) by fasteners passing through the first connecting plate (181); the distance sensor (19) is disposed on the second connecting plate (182).

3. The locking structure according to claim 1, characterized in that, The movable plate (4) includes a third plate surface (41) connected to the locking assembly (2) and a fourth plate surface (42) connected to the third plate surface (41). The third plate surface (41) and the fourth plate surface (42) are arranged perpendicular to each other. The distance sensor (19) senses the distance between the movable plate (4) and the distance sensor (19) by emitting a light beam (20) toward the fourth plate surface (42).

4. The locking structure according to claim 1, characterized in that, The sleeve (27) is provided with an air hole that communicates with the vacuum cavity (37). The vacuum component (26) is provided with two sealing components (35). The air hole is located between the two sealing components (35). The two sealing components (35) are used to seal the sleeve (27) and the vacuum component (26).

5. The locking structure according to claim 1, characterized in that, The locking assembly (2) includes a connecting bracket (24), which is connected to the motor mounting plate (23). The connecting bracket (24) includes a first fixing plate (241) connected to the motor mounting plate (23) and a second fixing plate (242) connected to the vacuum component (26). The first fixing plate (241) and the second fixing plate (242) are spaced apart. A bearing component (36) is provided inside the vacuum component (26). The outer ring of the bearing component (36) is connected to the vacuum component (26), and the inner ring of the bearing component (36) is connected to the sleeve (27).

6. The locking structure according to claim 1, characterized in that, The locking structure also includes: A fixing block (101) is disposed on the mounting plate (12), and the movable plate (4) is disposed at intervals from the fixing block (101); A connecting shaft (13) is provided, one end of which is connected to the fixed block (101), and the other end of which is connected to the movable plate (4). An elastic element (14) is sleeved on the connecting shaft (13). One end of the elastic element (14) is connected to the fixed block (101), and the other end of the elastic element (14) is connected to the moving plate (4). The connecting shaft (13) is movably connected to the moving plate (4) so ​​that the distance between the fixed block (101) and the moving plate (4) can be adjusted by rotating the connecting shaft (13).

7. The locking structure according to claim 1, characterized in that, The mounting plate (12) is provided with a slide rail (15), and the movable plate (4) is provided with a slider (16), the slider (16) being movably connected to the slide rail (15); and / or, There are multiple locking components (2), and the multiple locking components (2) are arranged in a direction perpendicular to the moving direction of the moving plate (4).

8. The locking structure according to claim 1, characterized in that, The locking structure also includes: A camera mounting plate (6) is connected to the mounting plate (12); a camera (9) is mounted on the camera mounting plate (6). A light source mounting bracket (7) has a connecting groove to connect the camera mounting plate (12) and the light source mounting bracket (7) by passing fasteners through the connecting groove and the camera mounting plate (12). An illumination component (8) is provided on the light source mounting bracket (7). The illumination component (8) has a ring structure and an avoidance hole for avoiding the camera.

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