Servo drive device and servo system

Abstract

The utility model discloses a servo driving device and a servo system, and relates to the technical field of automation, the servo driving device comprises a device main body and a cover body, the outer surface of the device main body is provided with an opening; the cover body comprises a cover main body and a first positioning part arranged on the cover main body, the cover main body is rotatably arranged on the device main body at a first position and a second position in a switching manner, the cover main body covers the opening when the cover main body is at the first position and opens the opening when the cover main body is at the second position, and the first positioning part is used for positioning the cover main body at the second position so as to keep the opening in an open state. According to the technical scheme, through the arrangement of the first positioning part, the cover body is kept in the open state at the second position, when a user operates or maintains equipment, the cover body does not need to be fixed in other modes, internal elements can be rapidly operated, the operation time is shortened, and therefore the convenience of internal operation of the driving device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automation, and particularly relates to a servo drive device and a servo system. Background Art

[0002] In the related art, servo drive devices are usually provided with various covers (such as a front cover, a decorative cover, an interface protection cover, a maintenance port protection cover, a display cover, etc.). These cover structures are generally used to install the parts to be accommodated inside, or usually protect some parts that need to be protected inside, and the cover is opened for internal operations (such as operating buttons, installing / dismantling components, etc.) when needed. However, these covers are usually detachably connected to the servo driver in a common way. When users operate or maintain the device, they first remove the cover and then perform internal operations on the servo drive device, which affects work efficiency and operation convenience. Content of the Utility Model

[0003] The main object of the utility model is to propose a servo drive device and a servo system, aiming to improve the convenience of internal operations of the servo drive device.

[0004] To achieve the above object, the servo drive device proposed by the utility model includes:

[0005] A device main body, an opening is provided on the outer surface of the device main body; and

[0006] A cover, the cover includes a cover body and a first positioning portion provided on the cover body, the cover body is rotatably switchable between a first position and a second position on the device main body, when the cover body is in the first position, it covers the opening, when in the second position, it opens the opening, and the first positioning portion is used to position the cover body in the second position so that the opening remains in an open state.

[0007] In an embodiment, the cover body has a first end and a second end arranged oppositely along a first direction, the first end is rotatably connected to the device main body, the second end is detachably connected to the device main body, and the first positioning portion is arranged at the first end of the cover body.

[0008] In an embodiment, a groove is provided at the opening of the device main body, the cover body is arranged in the groove, first rotating portions are respectively provided on the side walls on opposite sides of the first end of the cover body, and second rotating portions adapted to be rotatably connected to the first rotating portions are provided on the side walls of the groove.

[0009] In one embodiment, bending portions that are folded towards the groove are respectively provided on both sides of the first end of the cover body. The first rotating portion and the first positioning portion are provided on the bending portions, and the end surface of the bending portion towards one end of the groove is convex arc-shaped.

[0010] In one embodiment, the first rotating portion is provided as a rotating shaft, the second rotating portion is provided as a shaft hole adapted to be installed with the rotating shaft, and the device body is further provided with avoidance grooves that communicate with the shaft hole and the groove respectively.

[0011] In one embodiment, the axial lengths of the two first rotating portions are not equal, and a guiding inclined surface is provided at one end of the first rotating portion away from the cover body.

[0012] In one embodiment, a second positioning portion is provided in the groove, and the first positioning portion and the second positioning portion are convex strips; the cover body further includes a third position, which is the position where the rotation stroke of the cover body is the largest; in the first position and the third position, the first positioning portion and the second positioning portion are arranged in a staggered manner; in the second position, the first positioning portion and the second positioning portion are in contact with each other.

[0013] In one embodiment, at least two buckles are provided at the second end of the cover body, and clamping grooves adapted to be connected with the buckles are provided in the groove; at least two of the buckles are arranged at intervals, and a notch is provided on the cover body between any two adjacent buckles.

[0014] In one embodiment, a battery compartment for installing a battery is provided on the device body, and the opening is the opening of the battery compartment.

[0015] The present utility model further provides a servo system, which is characterized by including the servo driving device described in any one of the foregoing items.

[0016] In the technical solution of the present utility model, since the cover can be rotated and switched between the first position and the second position, the user can easily open or close the opening on the device body, which can reduce the cumbersome steps of disassembling and installing the cover during maintenance and inspection, and improve the convenience of operation. Secondly, through the setting of the first positioning portion, the cover body is kept in an open state in the second position. When the user operates or maintains the device, there is no need to fix the cover in other ways, and the internal components can be quickly operated, shortening the operation time, thereby improving the convenience of the internal operation of the servo driving device. In addition, it can also prevent the cover from accidentally closing during operation, thus ensuring the safety of the operator and the continuity of the operation. Description of the Drawings

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0018] Figure 1 Structural schematic diagram of an embodiment of the servo drive device provided by the present invention;

[0019] Figure 2 For Figure 1 Structural schematic diagram of the front shell and the cover;

[0020] Figure 3 For Figure 2 Structural schematic diagram of the hidden cover in

[0021] Figure 4 For Figure 3 Enlarged view of part A in

[0022] Figure 5 For Figure 2 Another side view of

[0023] Figure 6 For Figure 5 Cross-sectional view of

[0024] Figure 7 For Figure 6 Enlarged view of part B in

[0025] Figure 8 Structural schematic diagram of the cover body in the second position;

[0026] Figure 9 For Figure 8 Enlarged view of part C in

[0027] Figure 10 Structural schematic diagram of the cover body in the third position;

[0028] Figure 11 For Figure 10 Enlarged view of part D in

[0029] Figure 12 Structural schematic diagram of an embodiment of the cover;

[0030] Figure 13 For Figure 12 Another side view of

[0031] Figure 14 For Figure 13 Enlarged view of part E in

[0032] Description of the reference numerals in the drawings:

[0033] 10. Servo drive device;

[0034] 100. Device main body; 110. Housing; 120. Front frame; 121. Battery compartment; 122. Compartment opening; 123. Power output interface; 124. Wire outlet groove; 125. Groove; 126. Second rotating part; 127. Second positioning part; 128. Card slot; 129. Avoidance groove; 130. Mounting bracket;

[0035] 200. Cover body; 210. Cover main body; 211. First end; 212. Second end; 220. First positioning part; 230. First rotating part; 240. Bending part; 250. Buckle; 260. Notch.

[0036] The realization of the object, functional features and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0037] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without any creative work belong to the scope of protection of the present utility model.

[0038] It should be noted that if there are directional indications (such as up, down, left, right, front, back,...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0039] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or the solution where A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0040] The present utility model provides a servo drive device, aiming to improve the convenience of the internal operation of the servo drive device.

[0041] Please refer to Figures 1 to 14 , in an embodiment of the present utility model, the servo drive device 10 includes a device main body 100 and a cover body 200. An opening is provided on the outer surface of the device main body 100; the cover body 200 includes a cover main body 210 and a first positioning portion 220 provided on the cover main body 210. The cover main body 210 is rotatably and switchably arranged on the device main body 100 between a first position and a second position. When the cover main body 210 is in the first position, it covers the opening, and when it is in the second position, it opens the opening. The first positioning portion 220 is used to position the cover main body 210 in the second position so that the opening remains open.

[0042] Among them, the opening is usually an installation opening provided corresponding to a face cover, a decorative cover, an interface protection cover, a maintenance port protection cover, a display cover, etc. In this embodiment, the main structure of the device main body 100 includes an installation bracket 130, a housing 110, a front shell 120, a circuit board, etc. The opening can be provided on the housing 110 or the front shell 120.

[0043] In the technical solution of the present utility model, since the cover body 200 can be rotatably switched between the first position and the second position, the user can easily open or close the opening on the device main body 100, which can reduce the cumbersome steps of disassembling and installing the cover body 200 during maintenance and inspection, and improve the convenience of operation. Secondly, the setting of the first positioning portion 220 keeps the cover main body 210 in the open state when it is in the second position. When the user operates or maintains the device, there is no need to fix the cover body 200 in other ways, and the internal components can be quickly operated, shortening the operation time, thereby improving the convenience of the internal operation of the servo drive device. In addition, it can also prevent the cover body 200 from accidentally closing during operation, thus ensuring the safety of the operator and the continuity of the operation.

[0044] Among them, the cover main body 210 can be in a regular shape such as circular, oval or square, or other irregular shapes, mainly set to fit the shape of the opening. For the convenience of description, the cover main body 210 will be described as a square as an example below.

[0045] In an embodiment, please refer to Figure 1 and Figure 13 , the cover main body 210 has a first end 211 and a second end 212 oppositely arranged along a first direction. The first end 211 is rotatably connected to the device main body 100, the second end 212 is detachably connected to the device main body 100, and the first positioning portion 220 is provided at the first end 211 of the cover main body 210.

[0046] Regarding the first direction, in this embodiment, the first direction is the length direction of the cover body 210. In other embodiments, the first direction can also be the width direction of the cover body 210, etc.

[0047] In one embodiment, the device main body 100 is provided with a groove 125 at the opening, the cover body 210 is arranged in the groove 125, and first rotating parts 230 are respectively arranged on the side walls on the opposite sides of the first end 211 of the cover body 210. A second rotating part 126 adapted to be rotatably connected with the first rotating part 230 is arranged on the side wall of the groove 125. Thus, in this embodiment, by providing the groove 125 and embedding the cover body 200 into the device main body 100, dust accumulation at the opening can be reduced, and the aesthetics of the driving device can be improved.

[0048] In one embodiment, bending parts 240 are respectively arranged on both sides of the first end 211 of the cover body 210 and are turned over towards the groove 125. The first rotating part 230 and the first positioning part 220 are arranged on the bending parts 240, and the end face of the bending part 240 towards one end of the groove 125 is arranged in a convex arc shape. Thus, in this embodiment, the end face of the bending part 240 towards one end of the groove 125 is arranged in a convex arc shape, which can effectively disperse stress, reduce the single-point stress condition, thereby improving the durability of the cover body 200 and the rotating components and extending the service life. The settings of the first rotating part 230 and the first positioning part 220 make the opening and closing processes of the cover body 200 smoother, reduce the resistance during operation, and enhance the user experience.

[0049] In one embodiment, the first rotating part 230 is set as a rotating shaft, the second rotating part 126 is set as a shaft hole adapted to be installed with the rotating shaft, and the device main body 100 is further provided with an avoidance groove 129 respectively communicating with the shaft hole and the groove 125. Compared with the embodiment in which the second rotating part 126 is set as a rotating shaft and the first rotating part 230 is set as a shaft hole adapted to be installed with the rotating shaft, this embodiment can reduce the thickness of the cover body 210 and also improve the stability of the rotating structure between the cover body 200 and the device main body 100.

[0050] In one embodiment, the axial lengths of the two first rotating parts 230 are not equal. Further, a guiding inclined surface is arranged at one end of the first rotating part 230 away from the cover body 210. In this embodiment, the design of the guiding inclined surface can guide the first rotating part 230 to more easily align with and enter the second rotating part 126, thereby simplifying the assembly process and improving the assembly efficiency. The different axial lengths of the first rotating parts 230 can reduce the jamming phenomenon during the opening and closing of the device, making the rotation of the cover body 210 smoother and more stable. It can be understood that the difference in the axial lengths of the two first rotating parts 230 should not be too large, generally between 1 mm and 5 mm.

[0051] In one embodiment, a second positioning portion 127 is provided in the groove 125, and the first positioning portion 220 and the second positioning portion 127 are rib strips; the cover body 210 further includes a third position, which is the position where the rotation stroke of the cover body 210 is the largest; at the first position and the third position, the first positioning portion 220 and the second positioning portion 127 are arranged in a dislocation manner; at the second position, the first positioning portion 220 abuts against the second positioning portion 127.

[0052] Among them, the cover 200 is closed (the first position), the middle position of the cover 200 is opened (the second position), and the maximum position of the cover 200 is opened (the third position). In the two cases of the cover 200 being closed and the cover 200 being opened at the maximum position, the first positioning portion 220 of the cover 200 and the second positioning portion 127 of the front shell 120 just have no interference, while in the middle position of the cover 200 being opened (here, all cases other than the cover 200 being closed and the cover 200 being opened at the maximum are called the middle position), there is interference between the positioning rib strips of the cover 200 and the front shell 120, so there will be a feeling of interference damping during the opening process.

[0053] In one embodiment, at least two buckles 250 are provided at the second end of the cover body 210, and a card slot 128 adapted to be connected with the buckles 250 is provided in the groove 125; at least two of the buckles 250 are arranged at intervals, and a notch 260 is provided between any two adjacent buckles 250 of the cover body 210. Preferably, the groove wall of the groove 125 is inclined at a position corresponding to the notch 260, so that it is convenient for the user to open the cover body 210.

[0054] In an exemplary embodiment, a battery compartment 121 for installing a battery is provided on the device main body 100, and the opening is the compartment opening 122 of the battery compartment 121.

[0055] In an exemplary embodiment, the device main body 100 includes a front shell 120, and the opening is provided on the front shell 120, and the opening is the compartment opening 122 of the battery compartment 121.

[0056] Please refer to Figures 1 to 3 , in an embodiment of the present invention, the servo drive device 10 includes a device main body 100 and a power output interface 123. A battery compartment 121 for installing a backup battery of an encoder is provided inside the device main body 100, and the battery compartment 121 is provided with a connection component for correspondingly connecting with the battery polarity; the power output interface 123 is provided on one side of the device main body 100, the power output interface 123 is electrically connected to the connection component, and the power output interface 123 is used for electrically connecting with the encoder.

[0057] Among them, the servo drive device 10 (which can also be called a servo driver) and the encoder are two independent parts. The main function of the servo drive device 10 is to control the movement of the servo motor. It receives command signals from a control system (such as a PLC or a host computer), processes these signals and generates appropriate current or voltage signals to drive the servo motor to operate. The encoder is a sensor used to measure parameters such as the rotational speed, position, and direction of the servo motor, and feedback this information to the servo drive device 10.

[0058] In this embodiment, the servo drive device 10 includes a device main body 100 and a panel assembly. The main structure of the device main body 100 includes a mounting bracket 130, a housing 110, a front shell 120, a circuit board, etc. The panel assembly includes components such as a panel, a display, operation buttons, or indicator lights that provide a user operation and monitoring interface.

[0059] The above main structures will be introduced in detail below.

[0060] The mounting bracket 130 provides a stable mounting foundation to fix the servo drive device 10 in a cabinet or equipment. The mounting bracket 130 is usually fixed at the bottom or side of the housing 110 and fixed by screws or fasteners 250 to make the device stable. The housing 110 is usually used to protect internal electronic components, provide structural support, and has heat dissipation and electromagnetic shielding functions. The housing 110 is connected to the mounting bracket 130 by screws or fasteners 250 and fixed in the mounting position. The front part of the housing 110 is usually designed with a position for mounting the front shell 120. The front shell 120 is fixed on the housing 110 by screws or fasteners 250. The front shell 120 mainly provides structural support. Components such as a panel, a display, operation buttons, or indicator lights that provide a user operation and monitoring interface are mounted on the front shell 120. In addition, the display and operation buttons on the front shell 120 are connected to the internal circuit board through connection lines or connectors to achieve signal transmission. The circuit board contains control circuits, drive circuits, feedback circuits, communication circuits, etc., for signal processing and drive control; the circuit board is usually mounted on the mounting bracket 130 and connected to the power supply through connection lines or sockets.

[0061] Regarding the backup battery of the encoder, the backup battery can be electrically connected to the main power supply. That is, when the backup battery is in a power deficit state or the battery's stored power is lower than a set value (for example, when the stored power is only 20%), the main power supply can charge the backup power supply. The backup battery can be a completely independent battery. That is, when the backup battery is in a power deficit state, other batteries with sufficient stored power need to be replaced.

[0062] Regarding the connection components, there can be many types of connection components, such as a snap - type 250 battery holder, a metal spring piece or a conductive bar, or a connecting wire and a quick connector, etc. In an embodiment where the connection component is a metal spring piece or a conductive bar, a metal spring piece or a conductive bar is provided inside the battery compartment 121 to contact the battery, and a connecting wire is output outside. Exemplarily, please refer to Figure 2 , the encoder has two independent power input interfaces, one for the main power supply and the other for the backup power supply.

[0063] The technical solution of the present utility model solves the problem that the connecting wire of the encoder becomes overall bulky due to the installation of the backup battery on the connecting wire of the encoder by providing a battery compartment 121 inside the servo - drive device 10, and this battery compartment 121 is used to install the backup battery of the encoder. In addition, by providing a battery compartment 121 inside the servo - drive device 10 for installing the backup battery of the encoder, it can be better integrated with the electronic system of the servo - drive device 10, making the connection between the battery and the encoder reliable, reducing the risk of poor contact, and also helping to reduce the electromagnetic interference between the battery and other electronic components, improving the stability and accuracy of the encoder signal; it helps to achieve the integrated design of the device, making the layout of the entire servo system more compact and beautiful.

[0064] In an embodiment, please refer to Figure 5 , the battery compartment 121 has two opposite side surfaces along its length direction, and the hatch 122 of the battery compartment 121 is provided on one of the side surfaces, that is to say, the hatch 122 of the battery compartment 121 is provided on the end face where the short side of the battery compartment 121 is located. In this way, when disassembling and installing the backup battery, the battery is not easily detached. In this embodiment, the backup battery is usually an integrated battery module.

[0065] On the basis of the previous embodiment, in order to facilitate the user to replace the backup battery, the device body 100 includes a housing 110 and a front cover 120. The front cover 120 is installed on the housing 110, and the power output interface 123 and the hatch 122 of the battery compartment 121 are provided on the front cover 120. In this way, in this embodiment, the hatch 122 of the battery compartment 121 is provided on the front cover 120, and the hatch 122 of the battery compartment 121 is provided on the end face where the short side of the battery compartment 121 is located. In this way, the opening area of the front cover 120 forming the battery compartment 121 can be reduced, thus strengthening the structural strength of the front cover 120. In addition, with such a setting, since the area of the hatch 122 is small, multiple hatches 122 of the battery compartment 121 can be provided on the front cover 120.

[0066] In one embodiment, in order to further simplify the internal structure of the servo drive device 10, the battery compartment 121 and the front shell 120 are integrally formed. In this way, the integral formation of the battery compartment 121 and the front shell 120 can reduce the assembly steps and the number of required components, thereby reducing the production cost. By reducing the parts and assembly steps, the production efficiency can be improved. In addition, the integral formation of the battery compartment 121 and the front shell 120 can create a more compact and integrated design, thereby improving the aesthetics and functionality of the product. The internal space layout can be better optimized.

[0067] In one embodiment, the length extension direction of the battery compartment 121 is perpendicular to the side of the front shell 120 where the compartment opening 122 is provided. The battery compartment 121 is placed in a direction perpendicular to the front shell 120, which can make more full use of the internal space of the driver, especially for the dual-axis servo drive device 10.

[0068] In a preferred embodiment, the power output interface 123 is configured as a socket groove for plugging the power connection cable of the encoder; the front shell 120 is provided with a wire outlet groove 124, and the battery compartment 121 and the socket groove are communicated through the wire outlet groove 124. In this embodiment, by setting the wire outlet groove 124 of the battery to be communicated with the socket groove of the encoder, not only is the structure compact and space-saving, but also the appearance has the advantage of being more coordinated and beautiful. With this design, the connection wire of the battery exits from the side of the cover body 200, cleverly penetrates through the socket groove, and is electrically connected to the encoder through the terminal wiring of the cable for the wire outlet.

[0069] In another embodiment, in order to improve the adaptability of the servo drive device 10, the number of the battery compartments 121 is multiple; the number of the socket grooves is set corresponding to the number of the battery compartments 121. In this way, the batteries built in the servo drive device 10 can supply power to multiple encoders, thereby improving the adaptability of the servo drive device 10.

[0070] In one embodiment, the multiple battery compartments 121 and the multiple socket grooves are respectively arranged along a first direction, and the battery compartments 121 and the socket grooves are arranged along a second direction. The multiple battery compartments 121 and the multiple socket grooves are arranged in this way, which is not only compact and space-saving in structure, but also convenient for the wiring of the servo drive device 10.

[0071] In one embodiment, the servo drive device 10 further includes a cover body 200 for covering or opening the hatches 122 of the plurality of battery compartments 121. The cover body 200 has a first end 211 and a second end 212 oppositely arranged along the first direction. The connection between the first end 211 and the front housing 120 is located above the battery compartment 121. The first end 211 is rotatably connected to the front housing 120, and the second end 212 is detachably connected to the front housing 120. In this embodiment, the cover body 200 of the battery compartment 121 is arranged in such a way that the opening method of the cover body 200 is simple, which has the advantage of convenient installation. In addition, the maintenance and installation operation space of the battery is designed directly in front of the operation. The operator not only has a large operation space, is convenient for observation, and can easily discover problems in a timely manner.

[0072] The present utility model also provides a servo system, which includes a servo drive device 10. The specific structure of the servo drive device 10 refers to the above embodiments. Since this servo system adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated here one by one. Due to its high precision, high response speed and high reliability, the servo system is widely used in industrial automation (such as numerical control machine tools, automated production lines, packaging machinery, etc.), robots (such as industrial robots, service robots, medical robots, etc.), aerospace (such as aircraft attitude control, satellite antenna control, etc.) and precision instruments (such as microscope autofocus systems, optical equipment, etc.).

[0073] Among them, the core components of the servo system include a servo drive device 10, a servo motor and a feedback device (such as an encoder). The following is a detailed introduction to the servo system.

[0074] The servo drive device 10 generally includes a control module, a power module, a feedback module and a communication interface. The servo drive device 10 receives command signals from the control system, processes them and generates current or voltage signals to control the operation of the servo motor.

[0075] The servo motor performs precise rotational or linear motion according to the instructions of the servo drive device 10. Common servo motors include AC servo motors, DC servo motors and stepper motors.

[0076] The feedback device feeds back information such as the actual position, speed or torque of the motor to the servo drive device 10 to achieve closed-loop control. Common feedback devices include incremental encoders, absolute encoders and resolvers.

[0077] The working principle of the servo system: The servo system usually adopts the closed-loop control principle and continuously adjusts the operating state of the motor to achieve the expected control target. Its working process is as follows:

[0078] Instruction signal input: The control system (such as PLC or host computer) sends control signals (position, speed or torque instructions) to the servo drive device 10.

[0079] Drive signal generation: The servo drive device 10 calculates the required drive current or voltage according to the instruction signal and outputs it to the servo motor.

[0080] Motor motion execution: The servo motor executes corresponding motion tasks (rotation or linear motion) according to the drive signal.

[0081] Feedback signal acquisition: The feedback device measures the actual motion state of the motor and feeds back this data to the servo drive device 10.

[0082] Closed-loop control adjustment: The servo drive device 10 adjusts the drive signal in real time according to the difference between the feedback signal and the instruction signal to improve the motion accuracy and response speed of the motor.

[0083] The above is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structural transformation made under the technical concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied to other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A servo drive device, characterized in that, Comprising: A device main body, an opening is provided on the outer surface of the device main body; And A cover body, the cover body includes a cover main body and a first positioning portion provided on the cover main body. The cover main body is rotatably switchable between a first position and a second position on the device main body. When the cover main body is in the first position, it covers the opening, and when in the second position, it opens the opening. The first positioning portion is used to position the cover main body in the second position so that the opening remains in an open state.

2. The servo drive device according to claim 1, wherein The cover main body has a first end and a second end oppositely arranged along a first direction. The first end is rotatably connected to the device main body, and the second end is detachably connected to the device main body. The first positioning portion is provided at the first end of the cover main body.

3. The servo drive device according to claim 2, wherein, A groove is provided on the device main body at the opening. The cover main body is arranged in the groove. First rotating portions are respectively provided on the side walls on opposite sides of the first end of the cover main body, and second rotating portions adapted to be rotatably connected to the first rotating portions are provided on the side walls of the groove.

4. The servo drive device according to claim 3, characterized in that, Bending portions are respectively provided on both sides of the first end of the cover main body and are turned over towards the groove. The first rotating portion and the first positioning portion are provided on the bending portions, and the end surface of the bending portion towards one end of the groove is provided in a convex arc shape.

5. The servo drive device according to claim 4, wherein, The first rotating portion is provided as a rotating shaft, the second rotating portion is provided as a shaft hole adapted to be installed with the rotating shaft, and the device main body is further provided with avoidance grooves respectively communicating with the shaft hole and the groove.

6. The servo drive device according to claim 5, characterized in that, The axial lengths of the two first rotating portions are not equal, and a guiding inclined surface is provided at one end of the first rotating portion away from the cover main body.

7. The servo drive device according to claim 4, characterized in that, A second positioning portion is provided in the groove. The first positioning portion and the second positioning portion are convex strips; the cover main body further includes a third position, and the third position is the position where the rotation stroke of the cover main body is the largest; In the first position and the third position, the first positioning portion and the second positioning portion are arranged in a staggered manner; In the second position, the first positioning portion and the second positioning portion are in contact with each other.

8. The servo drive device according to claim 3, characterized in that, At least two buckles are provided at the second end of the cover main body, and clamping grooves adapted to be connected to the buckles are provided in the groove; at least two of the buckles are arranged at intervals, and a notch is provided on the cover main body between any two adjacent buckles.

9. The servo drive device according to any one of claims 1 to 8, characterized in that A battery compartment for installing a battery is provided on the device main body, and the opening is the compartment opening of the battery compartment.

10. A servo system, characterized in that, Comprising the servo drive device according to any one of claims 1 to 9.

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