Charging equipment rotating holder device capable of realizing accurate angle positioning

Abstract

The utility model discloses a charging equipment rotating holder device capable of realizing accurate angle positioning, and belongs to the technical field of holders and turntables. Comprising a fixed base, a rotating seat, a main frame body, a stepping motor, a transmission part and a grating sensor, the rotating seat is fixedly connected with the fixed base, the main frame body is connected to the upper portion of the rotating seat and can rotate around the rotating seat in a reciprocating mode, the stepping motor is provided with a stepping motor output shaft, the transmission part and the stepping motor output shaft are installed in a matched mode, and the transmission part is in transmission connection with the rotating seat and can rotate around the rotating seat. A detection wheel disc is formed at the top of the transmission part, and the grating sensor can detect the rotation angle of the detection wheel disc and feed back an angle change signal to the control module. The charging device has the advantages that accurate control over the rotation angle and position of the charging device is achieved, effective control operation is conducted according to a preset program, use stability and reliability are guaranteed, practicability is improved, and the charging device has remarkable popularization significance.

Description

Technical Field

[0001] The utility model belongs to the technical field of pan / tilt turntables, and in particular relates to a rotating pan / tilt device for charging equipment which can realize precise angle positioning. Background Art

[0002] The above-mentioned rotating pan-tilt device is a base platform mechanism that can drive itself to rotate and start and stop through a mechanical transmission structure installed thereon. Specifically, when working, a rechargeable device component such as a mobile phone, a camera or an action device will be arranged on the pan-tilt turntable, and rotated to a specific preset position to meet different usage requirements. In addition, such a rotating pan-tilt mechanism is often arranged on some card-dealing machine devices to make the card-dealing machine device rotate and stop and perform corresponding positioning and dealing actions. However, the current rotating pan-tilt mechanism generally has the problems of low rotation efficiency and low precision, and the operation of the rechargeable device cannot be accurately controlled. Specifically, the existing pan-tilt device will use a limit method such as a micro switch to control its rotation. When the pan-tilt rotation angle reaches a preset limit position, the power supply is cut off through the micro switch action, so that the pan-tilt and the rechargeable device on it stop rotating. However, the micro switch has a certain position delay, which still leads to low rotation accuracy of the rechargeable device, and the micro switch has a life span. When the micro switch is damaged, it cannot achieve limit, and there are also problems of high cost and low practicality. In addition, existing rotating pan-tilt mechanisms generally have problems such as complex structure, numerous components and large space occupation.

[0003] In view of the above problems, it is necessary to design a stable and reliable rotating pan-tilt mechanism for charging equipment that can ensure accurate rotation. To this end, the applicant has cleverly designed the following technical solution. Utility Model Content

[0004] The purpose of the present invention is to provide a rotating pan-tilt device for a charging device which has a simple and compact structure and is stable and reliable to use and can achieve precise angle positioning. It helps to accurately detect the rotation angle and angular velocity by setting a grating sensor, thereby achieving precise and effective control of the rotation and reset action of the charging device.

[0005] The purpose of the utility model is achieved in this way. A charging device rotating pan-tilt device for realizing precise angle positioning comprises: a fixed base, a rotating base, a main frame, a stepping motor, a transmission member and a grating sensor; wherein the fixed base can be fixedly placed on a flat horizontal plane, the rotating base is arranged at an upper position of the fixed base and is fixedly connected to the fixed base, the main frame is connected above the rotating base and can reciprocate around the rotating base, a main frame bottom positioning plate is also formed at the bottom of the main frame, and the stepping motor is installed above the main frame bottom positioning plate, The stepper motor is provided with a stepper motor output shaft which passes downward through the bottom positioning plate of the main frame; the transmission member is arranged below the bottom positioning plate of the main frame and is installed in cooperation with the stepper motor output shaft; the transmission member is connected to the rotating seat and can rotate around the rotating seat; a detection wheel is formed on the top of the transmission member; the grating sensor is positioned and installed on the bottom positioning plate of the main frame and also passes downward through the bottom positioning plate of the main frame; the grating sensor can detect the rotation angle of the detection wheel and feed back the angle change signal to the control module.

[0006] In a specific embodiment of the present invention, a wheel disc clearance groove is provided at a portion of the grating sensor corresponding to the bottom positioning plate of the main frame, and the outer peripheral portion of the detection wheel disc can penetrate into the wheel disc clearance groove during rotation, thereby enabling the grating sensor to detect the rotation angle of the detection wheel disc.

[0007] In another specific embodiment of the utility model, a grating sensor positioning groove is further provided on the positioning plate at the bottom of the main frame, and the grating sensor body is inserted into the grating sensor positioning groove; and a positioning locking component is also provided on the grating sensor, and the positioning locking component comprises a horizontally arranged positioning locking component mounting plate and a plurality of positioning locking component plug-in pins formed on one side of the positioning locking component mounting plate, the positioning locking component mounting plate is positioned and connected with the grating sensor and is used to connect the grating sensor with the positioning plate at the bottom of the main frame, the plurality of positioning locking component plug-in pins are vertically arranged at one side of the positioning locking component mounting plate, and the plurality of positioning locking component plug-in pins can pass through the grating sensor positioning groove and the lower part thereof can be locked with the positioning plate body at the bottom of the main frame, thereby realizing the positioning connection between the positioning locking component and the positioning plate at the bottom of the main frame.

[0008] In another specific embodiment of the present invention, a grating sensor mounting plate is further formed at the middle position in the height direction of the grating sensor, and the grating sensor mounting plate is arranged on the upper side surface of the positioning locking component mounting plate, and a plurality of positioning locking component matching columns are convexly formed on the bottom surface of the positioning locking component mounting plate, and the plurality of positioning locking component matching columns pass through the grating sensor mounting plate and are matched and installed together therewith, and the bottom ends of the positioning locking component matching columns protrude downwardly out of the grating sensor mounting plate, and a plurality of main frame bottom positioning plate plug-in holes are also opened on the main frame bottom positioning plate and at positions corresponding to the plurality of positioning locking component matching columns, and the bottom ends of the plurality of positioning locking component matching columns can be embedded in the corresponding main frame bottom positioning plate plug-in holes, thereby realizing the positioning connection between the positioning locking component, the grating sensor body and the main frame bottom positioning plate.

[0009] In another specific embodiment of the utility model, a plurality of stepper motor fixing ear seats are protrudingly formed on the bottom of the stepper motor housing, and a plurality of motor fixing holes are opened on the bottom positioning plate of the main frame and at positions corresponding to the plurality of stepper motor fixing ear seats. The stepper motor fixing ear seats are fixedly connected to the bottom positioning plate of the main frame by fasteners passing through the motor fixing holes, thereby realizing a fixed connection between the stepper motor and the bottom positioning plate of the main frame.

[0010] In another specific embodiment of the utility model, a base inner cavity is formed inside the fixed base, and an inner plate is arranged in the base inner cavity; and a rotating seat positioning collar portion is convexly formed on the upward side surface of the fixed base, and the rotating seat positioning collar portion is annular in shape, and the bottom part of the rotating seat is cooperatedly arranged in the rotating seat positioning collar portion.

[0011] In a further specific embodiment of the present invention, a plurality of rotating seat connecting holes are provided on the rotating seat and close to its circumferential edge, and the plurality of rotating seat connecting holes all penetrate the thickness direction of the rotating seat, and a plurality of fixed base connecting holes that penetrate the thickness direction are also provided on the fixed base and at positions corresponding to the rotating seat connecting holes, and a plurality of inner plate connecting holes corresponding to the fixed base connecting holes are also provided on the inner plate, and a connecting screw is fitted in each of the plurality of fixed base connecting holes, and the connecting screw passes through the fixed base connecting hole, the inner plate connecting hole and the rotating seat positioning collar portion in sequence and is fixedly connected to the rotating seat, thereby realizing a fixed connection between the fixed base and the rotating seat.

[0012] In a further specific embodiment of the present invention, a plurality of base anti-slip protrusions are evenly arranged on the downwardly facing surface of the fixed base.

[0013] In yet another specific embodiment of the present invention, the rotating seat is cylindrical in shape and has a rotating seat through hole at the center of the rotating seat, a rotating seat bearing is provided in the rotating seat through hole, and a bearing fitting is formed downward on the main frame bottom positioning plate of the main frame and at a position corresponding to the rotating seat bearing, and the bearing fitting is fitted and penetrated into the rotating seat bearing and is rotationally connected thereto.

[0014] In yet another specific embodiment of the present invention, the transmission member also has a transmission gear portion formed at the lower part of the detection wheel disc, and a rotating seat gear portion is formed at the outer peripheral edge of the rotating seat, and the transmission gear portion and the rotating seat gear portion are meshed and connected together, thereby realizing the transmission connection between the transmission member and the rotating seat.

[0015] After the utility model adopts the above structure, it has the beneficial effects: first, by arranging a grating sensor on the main frame, the grating sensor can effectively and accurately detect the rotation angle and angular velocity of the detection wheel on the transmission member, and the grating sensor can transmit the relevant data to the control module, and effectively control the stepper motor according to the preset program, so as to realize the precise and effective control of the rotation and reset of the rechargeable device, improve the reliability and stability of use, maintain long-term work without errors, and can correctly produce according to the instructions; in addition, by arranging a stepper motor that can accurately grasp the rotation angle, it can accurately and reliably drive the main frame to rotate to the preset The invention can realize 360-degree all-round rotation of the main frame without dead angle, and the switching speed is fast, which saves time and effort and improves work efficiency. At the same time, the stepper motor will not accumulate errors when working, and has a large ability to drive load inertia. Therefore, it has the advantages of convenient use and maintenance and low manufacturing cost, strong reliability, and significant promotion significance. Finally, by arranging a main frame bottom positioning plate at the bottom of the main frame, the stepper motor and the grating sensor can be stably and reliably installed on the main frame bottom positioning plate, thereby effectively simplifying the connection mechanism and reducing the number of related connection components, thereby reliably reducing costs, making the overall volume smaller, and facilitating layout. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of the internal structure of the illustrated embodiment;

[0018] Figure 3 for Figure 1 A three-dimensional exploded view of the structure of the embodiment shown;

[0019] Figure 4 It is a cross-sectional view of the internal structure of the rotating seat and the transmission member in the utility model.

[0020] In the figure: 1. Fixed base, 11. Inner cavity of base, 111. Inner plate, 1111. Inner plate connecting hole, 12. Rotating seat positioning collar, 13. Fixed base connecting hole, 14. Connecting screw, 15. Anti-skid protrusion of base; 2. Rotating seat, 21. Rotating seat connecting hole, 22. Rotating seat through hole, 23. Rotating seat bearing, 24. Rotating seat gear; 3. Main frame, 31. Positioning plate at the bottom of the main frame, 311. Grating sensor positioning groove, 312. Main The bottom positioning plate of the frame has a matching hole, 313. The motor fixing hole, 314. The bearing matching part; 4. The stepper motor, 41. The stepper motor output shaft, 42. The stepper motor fixing ear seat; 5. The transmission part, 51. The detection wheel, 52. The transmission gear part; 6. The grating sensor, 61. The wheel clearance groove, 62. The grating sensor mounting plate; 7. The positioning locking part, 71. The positioning locking part mounting plate, 711. The positioning locking part matching column, 72. The positioning locking part matching foot. DETAILED DESCRIPTION

[0021] The specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings, but the description of the embodiments is not a limitation of the technical solution. Any changes in form rather than substance based on the concept of the present invention should be regarded as the protection scope of the present invention.

[0022] In the following description, all concepts related to up, down, left, right, front and back directions or orientations are based on Figure 1 The positions shown are for reference only and thus cannot be understood as a special limitation on the technical solution provided by the present utility model.

[0023] See also Figures 1 to 4, shows a charging device rotating pan-tilt device for realizing precise angle positioning, which is used for realizing the rotation and resetting of the charging device stably and accurately; and the aforementioned charging device rotating pan-tilt device for realizing precise angle positioning comprises: a fixed base 1, a rotating base 2, a main frame 3, a stepping motor 4, a transmission member 5 and a grating sensor 6, the aforementioned fixed base 1 can be fixedly placed on a flat horizontal plane, and in the present embodiment, the aforementioned fixed base 1 is disc-shaped, the aforementioned rotating base 2 is arranged at an upper position of the fixed base 1 and is fixedly connected to the aforementioned fixed base 1, the aforementioned main frame 3 is connected to the upper part of the aforementioned rotating base 2 and can reciprocate around the rotating base 2, the aforementioned main frame 3 can serve as the frame of the aforementioned charging device, and can drive the charging device as a whole to rotate during the rotation of the main frame 3; in the main frame 3 A main frame bottom positioning plate 31 is also formed at the bottom of the frame body 3, the aforementioned stepper motor 4 is installed above the main frame bottom positioning plate 31, and the stepper motor 4 is provided with a stepper motor output shaft 41 that passes through the aforementioned main frame bottom positioning plate 31 downward, the aforementioned transmission member 5 is arranged below the aforementioned main frame bottom positioning plate 31 and is installed in cooperation with the aforementioned stepper motor output shaft 41, the transmission member 5 is connected to the aforementioned rotating seat 2 for transmission and can rotate around the rotating seat 2, and a detection wheel 51 is formed on the top of the transmission member 5, the aforementioned grating sensor 6 is positioned and installed on the aforementioned main frame bottom positioning plate 31 and the grating sensor 6 also passes through the main frame bottom positioning plate 31 downward, the aforementioned grating sensor 6 can detect the rotation angle of the aforementioned detection wheel 51 and feed back the angle change signal to the control module.

[0024] It should be noted that: the aforementioned stepper motor 4, grating sensor 6 are electrically connected to a PLC controller, the PLC controller can control the motor driver of the stepper motor 4, and the PLC controller can further control the rotation and reset of the aforementioned stepper motor 4 and the main frame 3. At the same time, the grating sensor 6 can accurately detect the rotation angle and angular velocity of the aforementioned detection wheel 51. The aforementioned grating sensor 6 can be electrically connected to the PLC controller and the corresponding display. The grating sensor 6 effectively detects the rotation angle and angular velocity of the aforementioned detection wheel 51 and transmits the relevant data to the PLC controller, so that the PLC controller can effectively control the operation according to the preset program. In addition, by supporting high-speed pulse output of the PLC controller The output end of the transistor is connected to the pulse signal terminal of the stepper motor driver. The stepper motor 4 can convert the electrical pulse signal into a corresponding angular displacement. Each time a pulse signal is input, the stepper motor output shaft 41 of the stepper motor 4 rotates an angle. The output angular displacement is proportional to the number of input pulses, and the rotation speed is proportional to the pulse frequency. The stepper motor 4 can set its step angle through the stepper driver. Therefore, the stepper motor 4 can be used to achieve precise control of the rotation speed and rotation angle of the main frame 3, and it is convenient to start and stop quickly. At the same time, the stepper motor 4 is connected to the PLC controller and controlled by the PLC controller to achieve the above functions. It is an application of conventional technology and does not belong to the improvement points of this solution. Therefore, it will not be further described here.

[0025] Since the grating sensor 6 is a common device in the prior art and can be purchased in the existing market, it is applied to the present invention, and its purpose is to efficiently and accurately calibrate the rotation angle of the detection wheel 51, so as to effectively feed back the rotation angle and speed of the charging device to the PLC controller for corresponding control operations to ensure the reliability of use. The present technical solution does not improve the grating sensor 6 itself, as long as it meets the use requirements, and therefore does not describe its specific structure and corresponding models in detail. Other undetailed parts of the present invention are conventional technologies known to those skilled in the art.

[0026] Preferably, the aforementioned stepper motor 4 is preferably a stepper motor produced by Changzhou Compani Motor Co., Ltd., Wuxi Wheatstone Motor Co., Ltd., Changzhou Songjie Motor & Electric Appliance Co., Ltd., Shanghai Sihong Motor Co., Ltd. and Guangzhou Xinyu Motor Co., Ltd.

[0027] Furthermore, a wheel clearance groove 61 is provided at a position of the aforementioned grating sensor 6 corresponding to the aforementioned bottom positioning plate 31 of the main frame, and the outer peripheral edge of the aforementioned detection wheel 51 can penetrate into the wheel clearance groove 61 during the rotation process, so that the grating sensor 6 can detect the rotation angle of the detection wheel 51.

[0028] In the present embodiment, a grating sensor positioning groove 311 is further provided on the aforementioned main frame bottom positioning plate 31, and the aforementioned grating sensor 6 body is inserted into the grating sensor positioning groove 311; and a positioning locking member 7 is also provided on the aforementioned grating sensor 6, and the positioning locking member 7 has a horizontally arranged positioning locking member mounting plate 71 and a plurality of positioning locking member plug-in pins 72 formed on one side of the positioning locking member mounting plate 71, the aforementioned positioning locking member mounting plate 71 is positioned and connected with the aforementioned grating sensor 6 and is used to connect the grating sensor 6 with the main frame bottom positioning plate 31, the plurality of aforementioned positioning locking member plug-in pins 72 are vertically arranged at one side of the positioning locking member mounting plate 71, and the plurality of positioning locking member plug-in pins 72 can pass through the aforementioned grating sensor positioning groove 311 and the lower part thereof can be locked with the plate body of the aforementioned main frame bottom positioning plate 31, thereby realizing the positioning connection between the positioning locking member 7 and the main frame bottom positioning plate 31.

[0029] Please continue to see Figures 1 to 3 A grating sensor mounting plate 62 is also formed at the middle position in the height direction of the aforementioned grating sensor 6, and the grating sensor mounting plate 62 is placed on the upper side surface of the aforementioned positioning locking piece mounting plate 71, and a plurality of positioning locking piece matching columns 711 are convexly formed on the bottom surface of the aforementioned positioning locking piece mounting plate 71, and the plurality of aforementioned positioning locking piece matching columns 711 pass through the aforementioned grating sensor mounting plate 62 and are matched and installed together, and the bottom ends of the aforementioned positioning locking piece matching columns 711 protrude downwardly from the aforementioned grating sensor mounting plate 62, and a plurality of main frame bottom positioning plate plug-in holes 312 are also provided on the aforementioned main frame bottom positioning plate 31 and at positions corresponding to the plurality of positioning locking piece matching columns 711, and the bottom ends of the plurality of positioning locking piece matching columns 711 can be embedded in the corresponding main frame bottom positioning plate plug-in holes 312, thereby realizing the positioning connection between the positioning locking piece 7, the grating sensor 6 body and the aforementioned main frame bottom positioning plate 31.

[0030] In this embodiment, a plurality of stepper motor fixing ears 42 are protrudingly formed at the bottom of the housing of the aforementioned stepper motor 4, and a plurality of motor fixing holes 313 are opened on the aforementioned main frame bottom positioning plate 31 and at positions corresponding to the plurality of aforementioned stepper motor fixing ears 42. The aforementioned stepper motor fixing ears 42 are fixedly connected to the aforementioned main frame bottom positioning plate 31 by fasteners passing through the motor fixing holes 313, thereby realizing the fixed connection between the stepper motor 4 and the main frame bottom positioning plate 31.

[0031] Furthermore, a base inner cavity 11 is formed inside the aforementioned fixed base 1, and an inner plate 111 is arranged in the base inner cavity 11; and a rotating seat positioning collar portion 12 is convexly formed on the upper side surface of the aforementioned fixed base 1, and the rotating seat positioning collar portion 12 is annular in shape, and the bottom portion of the aforementioned rotating seat 2 is cooperatively arranged in the rotating seat positioning collar portion 12.

[0032] Furthermore, a plurality of rotating seat connecting holes 21 are provided on the aforementioned rotating seat 2 and near its circumferential edge, and the plurality of aforementioned rotating seat connecting holes 21 all penetrate the thickness direction of the aforementioned rotating seat 2, and a plurality of fixed base connecting holes 13 that penetrate the thickness direction are also provided on the aforementioned fixed base 1 and at positions corresponding to the aforementioned rotating seat connecting holes 21, and a plurality of inner plate connecting holes 1111 corresponding to the fixed base connecting holes 13 are also provided on the aforementioned inner plate 111, and a connecting screw 14 is fitted in each of the plurality of aforementioned fixed base connecting holes 13, and the aforementioned connecting screw 14 passes through the fixed base connecting hole 13, the inner plate connecting hole 1111 and the rotating seat positioning collar portion 12 in sequence and is fixedly connected with the rotating seat 2, thereby realizing a fixed connection between the fixed base 1 and the rotating seat 2.

[0033] In this embodiment, a plurality of base anti-slip protrusions 15 are evenly distributed on the downward-facing surface of the aforementioned fixed base 1; the arrangement of the plurality of base anti-slip protrusions 15 can ensure that a damping plate can also be arranged on the upward-facing surface of the fixed base 1, i.e., between the fixed base 1 and the rotating base 2, to ensure the rotation stability of the main frame 3.

[0034] See also Figures 1 to 3 The aforementioned rotating seat 2 is of cylindrical shape and has a rotating seat through hole 22 at the center of the rotating seat 2. A rotating seat bearing 23 is arranged in the rotating seat through hole 22. The rotating seat 2 adopts a hollow design, which is beneficial to weight reduction and ensures its working stability; and on the main frame bottom positioning plate 31 of the aforementioned main frame 3 and at the position corresponding to the rotating seat bearing 23, there is a bearing fitting 314 facing downward, and the bearing fitting 314 is cooperated and penetrated in the aforementioned rotating seat bearing 23 and is rotatably connected thereto.

[0035] Preferably, the transmission member 5 further comprises a transmission gear portion 52 formed at the lower part of the detection wheel 51, and a rotating seat gear portion 24 is formed at the outer peripheral portion of the rotating seat 2, and the transmission gear portion 52 is meshed and transmission-connected with the rotating seat gear portion 24, thereby realizing the transmission connection between the transmission member 5 and the rotating seat 2. The detection wheel 51 and the transmission gear portion 52 are integrally formed, and the integrally formed large gear portion 51 and small gear portion 52 can improve the connection strength between each other, and the processing of the planetary gear member 5 of this structure is also relatively convenient.

[0036] See also Figures 1 to 4 The applicant briefly describes the working principle of the utility model: when it is necessary to realize the overall rotation of the charging device, that is, to make the main frame 3 drive the charging device to rotate, the motor driver of the stepper motor 4 is controlled by the PLC controller so that the stepper motor 4 works according to the signal instruction, and the stepper motor output shaft 41 of the stepper motor 4 drives the transmission member 5 to rotate, and the transmission gear part 52 of the transmission member 5 rotates on the aforementioned rotating seat 2, and makes the stepper motor 4 and the main frame 3 rotate around the rotating seat 2 together, thereby realizing reliable and stable rotation of the charging device, and the operation of the stepper motor 4 can ensure that the charging device stops stably at a preset position, and at the same time, the grating sensor 6 can detect the rotation angle of the aforementioned detection wheel 51 and feed back the angle change signal to the control module, realize the detection of the working stroke and make the control module perform effective control operations according to the preset program, so as to realize the precise angle positioning of the charging device, thereby greatly improving the work efficiency, and it has strong practicality and is suitable for popularization and application.

[0037] In summary, the technical solution provided by the utility model makes up for the shortcomings of the existing technology, successfully completes the utility model task, and faithfully realizes the technical effects stated by the applicant in the technical effect column above.

Claims

1. A rotating pan-tilt device for charging equipment that achieves precise angle positioning. It is characterized in that include: A fixed base (1), a rotating base (2), a main frame (3), a stepping motor (4), a transmission member (5) and a grating sensor (6); wherein the fixed base (1) can be fixedly placed on a flat horizontal surface, the rotating base (2) is arranged at an upper position of the fixed base (1) and is fixedly connected to the fixed base (1), the main frame (3) is connected to the upper part of the rotating base (2) and can reciprocate on the rotating base (2), a main frame bottom positioning plate (31) is also formed at the bottom of the main frame (3), the stepping motor (4) is installed above the main frame bottom positioning plate (31), and the stepping motor (4) is provided with a The stepper motor output shaft (41) of the bottom positioning plate (31) of the main frame, the transmission member (5) is arranged below the bottom positioning plate (31) of the main frame and is installed in cooperation with the stepper motor output shaft (41), the transmission member (5) is connected to the rotating seat (2) in transmission and can rotate around the rotating seat (2), and a detection wheel (51) is formed on the top of the transmission member (5), the grating sensor (6) is positioned and installed on the bottom positioning plate (31) of the main frame and the grating sensor (6) also passes downward through the bottom positioning plate (31) of the main frame, and the grating sensor (6) can detect the rotation angle of the detection wheel (51) and feed back the angle change signal to the control module.

2. According to claim 1, a charging device rotating pan-tilt device for achieving precise angle positioning, Features: A wheel disc clearance groove (61) is provided on the portion of the grating sensor (6) corresponding to the bottom positioning plate (31) of the main frame, and the outer peripheral portion of the detection wheel disc (51) can be inserted into the wheel disc clearance groove (61) during the rotation process, so that the grating sensor (6) can detect the rotation angle of the detection wheel disc (51).

3. According to claim 1, a charging device rotating pan-tilt device for achieving precise angle positioning, Features: A grating sensor positioning groove (311) is also provided on the positioning plate (31) at the bottom of the main frame, and the grating sensor (6) body is inserted into the grating sensor positioning groove (311); and a positioning locking member (7) is also provided on the grating sensor (6), and the positioning locking member (7) has a horizontally arranged positioning locking member mounting plate (71) and a plurality of positioning locking member plug-in pins (72) formed on one side of the positioning locking member mounting plate (71), and the positioning locking member mounting plate (71) and the grating sensor body are connected to each other. The sensor (6) realizes positioning connection and is used to connect the grating sensor (6) with the bottom positioning plate (31) of the main frame. A plurality of positioning locking member plug-in pins (72) are vertically arranged at one side of the positioning locking member mounting plate (71), and the plurality of positioning locking member plug-in pins (72) can pass through the grating sensor positioning groove (311) and their lower parts can be locked with the bottom positioning plate (31) of the main frame, thereby realizing the positioning connection between the positioning locking member (7) and the bottom positioning plate (31) of the main frame.

4. According to claim 3, a charging device rotating pan-tilt device for achieving precise angle positioning, Features: A grating sensor mounting plate (62) is also formed at the middle position in the height direction of the grating sensor (6). The grating sensor mounting plate (62) is placed on the upper side surface of the positioning locking member mounting plate (71), and a plurality of positioning locking member matching columns (711) are convexly formed on the bottom surface of the positioning locking member mounting plate (71). The plurality of positioning locking member matching columns (711) pass through the grating sensor mounting plate (62) and are matched and installed therewith. The positioning locking member matching columns (711) The bottom end of the grating sensor mounting plate (62) protrudes downward, and a plurality of main frame bottom positioning plate plug-in holes (312) are provided on the main frame bottom positioning plate (31) and at positions corresponding to the plurality of positioning locking component matching columns (711). The bottom ends of the plurality of positioning locking component matching columns (711) can be embedded in the corresponding main frame bottom positioning plate plug-in holes (312), thereby realizing the positioning connection between the positioning locking component (7), the grating sensor (6) body and the main frame bottom positioning plate (31).

5. According to claim 1, a charging device rotating pan-tilt device for achieving precise angle positioning, Features: A plurality of stepper motor fixing ear seats (42) are also protrudingly formed at the bottom of the stepper motor (4) housing, and a plurality of motor fixing holes (313) are provided on the main frame bottom positioning plate (31) at positions corresponding to the plurality of stepper motor fixing ear seats (42). The stepper motor fixing ear seats (42) are fixedly connected to the main frame bottom positioning plate (31) via fasteners inserted through the motor fixing holes (313), thereby achieving fixed connection between the stepper motor (4) and the main frame bottom positioning plate (31).

6. The charging device rotating pan-tilt device for achieving precise angle positioning according to claim 1, Features: A base inner cavity (11) is formed inside the fixed base (1), and an inner plate (111) is arranged in the base inner cavity (11); and a rotating seat positioning collar portion (12) is convexly arranged on a side surface of the fixed base (1) facing upward, and the rotating seat positioning collar portion (12) is annular in shape, and the bottom portion of the rotating seat (2) is cooperatively arranged in the rotating seat positioning collar portion (12).

7. A charging device rotating pan-tilt device for achieving precise angle positioning according to claim 6, Features: A plurality of rotating seat connection holes (21) are provided on the rotating seat (2) and near its circumferential edge. The plurality of rotating seat connection holes (21) all penetrate the rotating seat (2) in the thickness direction. The fixed base (1) is also provided with a plurality of fixed base connection holes (13) that penetrate the thickness direction at positions corresponding to the rotating seat connection holes (21). The inner plate (111) is also provided with a plurality of inner plate connection holes (1111) that are arranged corresponding to the fixed base connection holes (13). A connection screw (14) is provided in each of the plurality of fixed base connection holes (13). The connection screw (14) passes through the fixed base connection hole (13), the inner plate connection hole (1111) and the rotating seat positioning collar (12) in sequence and is fixedly connected to the rotating seat (2), thereby realizing a fixed connection between the fixed base (1) and the rotating seat (2).

8. The charging device rotating pan-tilt device for achieving precise angle positioning according to claim 1, Features: A plurality of base anti-slip protrusions (15) are evenly arranged on a downwardly facing surface of the fixed base (1).

9. The charging device rotating pan-tilt device for achieving precise angle positioning according to claim 1, Features: The rotating seat (2) is of cylindrical shape and has a rotating seat through hole (22) at the center of the rotating seat (2). A rotating seat bearing (23) is arranged in the rotating seat through hole (22). A bearing fitting (314) is formed downward on the main frame bottom positioning plate (31) of the main frame (3) at a position corresponding to the rotating seat bearing (23). The bearing fitting (314) is fitted and inserted into the rotating seat bearing (23) and is rotatably connected thereto.

10. The charging device rotating pan-tilt device for achieving precise angle positioning according to claim 1, Features: The transmission member (5) also includes a transmission gear portion (52) formed at the lower part of the detection wheel disc (51), and a rotating seat gear portion (24) is formed at the outer peripheral edge of the rotating seat (2). The transmission gear portion (52) and the rotating seat gear portion (24) are meshed and connected together for transmission, thereby realizing the transmission connection between the transmission member (5) and the rotating seat (2).

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