Servo drive device and servo system

Abstract

The utility model discloses a servo drive device and a servo system, relates to automation technical field, the servo drive device comprises a housing and a mounting support, the housing comprises a first housing and a second housing, and the mounting support comprises a base plate and a fan mounting seat. According to the technical scheme, the clamping groove is formed in the end, close to the ventilation opening, of the fan installation base, and the installation buckles matched with the clamping groove are arranged on the inner wall of the first shell and the inner wall of the second shell in the protruding mode. Therefore, the fan mounting seat and the shell can be fixed through simple buckles, and the mounting difficulty of the shell is reduced. And secondly, the buckle is arranged on the shell, so that the opening area of the shell can be reduced, and the structural strength of the shell at the ventilation opening is improved. In addition, the second shell is provided with a first limiting part and a second limiting part, the mounting bracket is provided with a third limiting part which is in limiting connection with the first limiting part, and the first shell is provided with a fourth limiting part which is in limiting connection with the second limiting part, so that the mounting stability of the shell can be 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 prior art, power devices are usually placed at the bottom of a heat dissipation base, and at the same time, a cooling fan is also installed at the bottom for the whole machine to dissipate heat. There are a large number of through-hole structures at the air outlet of the fan. In order to ensure the strength of the shell structure, the installation method of the shell of the servo drive device and the heat dissipation base at the air outlet of the fan is usually to open holes on the heat dissipation base and cooperate with the baffle structure of the shell to realize the installation of the side of the shell close to the heat dissipation base. However, this installation method has complex installation operations. Summary of the Utility Model

[0003] The main purpose of the utility model is to propose a servo drive device and a servo system, in order to reduce the installation difficulty of the shell while ensuring that the shell has good structural strength.

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

[0005] A shell, including a first shell and a second shell, at least one of the first shell and the second shell is provided with a ventilation opening; and

[0006] An installation bracket, including a bottom plate and a fan mounting seat, the bottom plate, the first shell and the second shell enclose an installation cavity, and the fan mounting seat is arranged on the bottom plate and is located in the installation cavity;

[0007] The fan mounting seat is provided with a first card slot and a second card slot at an end close to the ventilation opening, the first card slot and the second card slot are located on a side of the fan mounting seat close to the bottom plate, the first shell is convexly provided with a first buckle on its inner wall that is adaptively installed with the first card slot, and the second shell is convexly provided with a second buckle on its inner wall that is adaptively installed with the second card slot;

[0008] The second shell is provided with a first limiting portion and a second limiting portion, the installation bracket is provided with a third limiting portion that is limitedly connected with the first limiting portion, and the first shell is provided with a fourth limiting portion that is limitedly connected with the second limiting portion.

[0009] In one embodiment, a limiting groove is enclosed between the first limiting portion and the second shell, and the third limiting portion is inserted into the limiting groove.

[0010] In one embodiment, the first housing includes a first housing body and two first bending portions respectively disposed on both sides of the first housing body. The first buckle and the fourth limiting portion are disposed on a side of the first bending portion away from the first housing body. The second housing includes a second housing body and two second bending portions respectively disposed on both sides of the second housing body. The buckle, the first limiting portion and the second limiting portion are disposed on a side of the second bending portion away from the second housing body. The fourth limiting portion and the second limiting portion are in abutment.

[0011] In one embodiment, the mounting bracket is provided with a positioning member on the side where the fan mounting seat is located. The positioning member is provided with a first positioning portion and a second positioning portion.

[0012] The first bending portion is provided with a third positioning portion that cooperates with the first positioning portion for positioning connection.

[0013] The second bending portion is provided with a fourth positioning portion that cooperates with the second positioning portion for positioning connection.

[0014] In one embodiment, the bottom plate, the fan mounting seat and the positioning member are integrally formed.

[0015] In one embodiment, the fan mounting seat includes a seat body, a bottom groove body, a first side groove body, a second side groove body and a third side groove body disposed in the bottom groove body. The seat body is disposed on the bottom plate. The bottom groove body is respectively connected to the seat body and the bottom plate. The first side groove body is connected to the bottom plate. The second side groove body is connected to the seat body. The bottom plate, the seat body, the bottom groove body, the first side groove body and the second side groove body enclose a groove. The third side groove body is disposed in the groove and divides the groove into a first card slot and a second card slot. The first buckle is buckled with the first card slot, and the second buckle is buckled with the second card slot.

[0016] In one embodiment, a disassembly opening is provided on an outer side wall of the first housing and the second housing near an edge of the third side groove body.

[0017] In one embodiment, a first guiding inclined surface is provided on an outer side wall of the first side groove body. The first buckle is provided with a first guiding cutting surface that cooperates with the first guiding inclined surface.

[0018] In one embodiment, a convex portion is provided on a side of the seat body away from the card slot. The convex portion is provided with a second guiding inclined surface. The second buckle is provided with a second guiding cutting surface that cooperates with the second guiding inclined surface.

[0019] The present invention also provides a servo system, and the servo system includes the servo driving device according to any one of the foregoing embodiments.

[0020] The technical solution of the present utility model is provided with a card slot at the end of the fan mounting base close to the ventilation opening. The card slot is located on the side of the fan mounting base close to the bottom plate. The inner walls of the first housing and the second housing are convexly provided with mounting buckles adapted to the card slot, so that the fan mounting base and the outer shell can be fixed by simple buckles without the use of additional screws or tools. Only by aligning the card slot and the buckle for buckling or unbuckling can the installation be completed, reducing the installation difficulty of the outer shell. Secondly, by providing buckles on the outer shell, the opening area of the outer shell can be reduced, thereby improving the structural strength of the outer shell at the ventilation opening. In addition, by providing a first limiting portion and a second limiting portion on the second housing, a third limiting portion for limiting connection with the first limiting portion is provided on the mounting bracket, and a fourth limiting portion for limiting connection with the second limiting portion is provided on the first housing, the stability of the outer shell installation can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0022] Figure 1 It is a schematic structural diagram of an embodiment of a servo drive device provided by the present utility model;

[0023] Figure 2 It is Figure 1 a side view of

[0024] Figure 3 It is Figure 2 a sectional view taken along line A-A in

[0025] Figure 4 It is Figure 3 an enlarged view of part A in

[0026] Figure 5 It is Figure 2 a sectional view taken along line B-B in

[0027] Figure 6 It is Figure 5 an enlarged view of part B in

[0028] Figure 7 It is Figure 1 an exploded view of

[0029] Figure 8 It is Figure 7 an enlarged view of part C in

[0030] Explanation of the reference numerals in the drawings:

[0031] 10. Servo drive device;

[0032] 100. Housing; 101. Vent; 102. Demounting opening; 103. First guiding section plane; 104. Second guiding section plane; 110. First housing; 111. First housing body; 112. First bending part; 113. First buckle; 114. Fourth limiting part; 115. Third positioning part; 120. Second housing; 121. Second housing body; 122. Second bending part; 123. Second buckle; 124. First limiting part; 125. Second limiting part; 126. Fourth positioning part;

[0033] 200. Mounting bracket; 210. Base plate; 220. Fan mounting seat; 201. First card slot; 202. Second card slot; 221. Seat body; 222. Bottom groove body; 223. First side groove body; 223a. First guiding inclined plane; 224. Second side groove body; 225. Third side groove body; 226. Protrusion; 226a. Second guiding inclined plane; 230. Positioning member; 231. First positioning part; 232. Second positioning part; 240. Third limiting part.

[0034] The realization, 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

[0035] 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 making creative efforts shall fall within the protection scope of the present utility model.

[0036] 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.

[0037] In addition, if the descriptions such as "first" and "second" are involved 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 specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel scenarios. Taking "A and / or B" as an example, it includes Scenario A, or Scenario B, or the scenario where both 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 ability of those of ordinary skill in the art to implement. 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.

[0038] Servo drivers usually adopt air-cooled heat dissipation methods. For the convenience of circuit layout, power devices are usually placed at the bottom of the heat dissipation base, and at the same time, fans are also installed at the bottom for the overall heat dissipation of the machine. However, there are a large number of through-hole structures in the heat dissipation window at the air outlet of the fan. When a snap-fit fixing structure is set at the position of the heat dissipation window on the outer shell, it will cause problems such as insufficient design strength of the outer shell. Drilling holes on the bottom plate of the heat dissipation base to cooperate with the baffle structure of the outer shell to achieve the installation of the bottom of the outer shell. This design requires rotational installation, and there may be gaps after installation. Being too tight or too loose will cause problems such as abnormal noise and deformation.

[0039] The present utility model proposes a servo drive device in order to reduce the installation difficulty of the outer shell while ensuring that the outer shell has good structural strength and good stability. For the convenience of understanding and explanation, in the attached Figures 1 to 8 drawings of the present utility model, the surfaces, grooves or holes are indicated by solid arrows.

[0040] Please refer to Figures 1 to 8 , in the embodiment of the present utility model, the servo drive device 10 includes an outer shell 100 and a mounting bracket 200. The main function of the mounting bracket 200 is to fix and support other components of the servo drive device.

[0041] Generally speaking. A complete servo drive device 10 also includes a cooling fan, a circuit board and a shell assembly, etc. The cooling fan and the circuit board are usually installed on the mounting bracket 200, and the shell assembly is installed on the housing 100. The mounting bracket 200 includes a bottom plate 210 and a base, and the base includes a fan mounting seat 220 and a circuit board mounting seat. The bottom plate 210 and the housing 100 are surrounded by a mounting cavity. At this time, the shell assembly is arranged on the side of the housing 100 away from the bottom plate 210. In order to make it easier to disassemble and replace the various components of the servo drive device 10, and to facilitate daily maintenance and fault repair, the housing 100 is arranged in a split state. For the convenience of description, the housing 100 is divided into a first shell 110 and a second shell 120 for explanation.

[0042] The housing 100 can protect the electronic components inside the servo drive from dust, moisture and mechanical shock, thereby extending the service life of the equipment. Alternatively, the housing 100 serves as a supporting component to support other components. The housing 100 is provided with a vent 101, which is connected to the air inlet side of the cooling fan, or the vent 101 is connected to the air outlet side of the cooling fan. When the housing 100 is divided into a first shell 110 and a second shell 120, the first shell 110 may be provided with the vent 101, or the second shell 120 may be provided with the vent 101, or both the first shell 110 and the second shell 120 may be provided with the vent 101, that is, at least one of the first shell 110 and the second shell 120 may be provided with the vent 101. For example, please refer to Figure 1 A vent 101 is provided on the first shell 110 .

[0043] Further, the fan mounting seat 220 is provided with a first slot 201 and a second slot 202 at the end close to the vent 101, the first slot 201 and the second slot 202 are located on the side of the fan mounting seat 220 close to the bottom plate 210, the first housing 110 is provided with a first buckle 113 on its inner wall adapted to be installed with the first slot 201, and the second housing 120 is provided with a second buckle 123 on its inner wall adapted to be installed with the second slot 202. In this way, in this embodiment, by providing a slot at the end of the fan mounting seat 220 close to the vent 101, the slot is located on the side of the fan mounting seat 220 close to the bottom plate 210, and the inner walls of the first housing 110 and the second housing 120 are provided with mounting buckles adapted to the slots. The fan mounting seat 220 and the housing 100 can be fixed by simple buckles, without the need to use additional screws or tools, and installation or removal can be completed by aligning the slots and buckles to engage or disengage, thereby reducing the difficulty of installing the housing 100. Secondly, by providing a buckle on the housing 100 , the opening area of the housing 100 can be reduced, thereby improving the structural strength of the housing 100 at the vent 101 .

[0044] Furthermore, the second housing 120 is provided with a first limiting portion 124 and a second limiting portion 125, the mounting bracket 200 is provided with a third limiting portion 240 which is limit-connected to the first limiting portion 124, and the first housing 110 is provided with a fourth limiting portion 114 which is limit-connected to the second limiting portion 125.

[0045] Regarding that the second housing 120 is provided with the first limiting portion 124, the mounting bracket 200 is provided with the third limiting portion 240 which is limit-connected to the first limiting portion 124; wherein, the first limiting portion 124 can be a limiting rib, a limiting block, a limiting post or a limiting pin, and the third limiting portion 240 is a limiting groove or a limiting hole adapted to the limiting block, the limiting post or the limiting pin. Or, the third limiting portion 240 can be a limiting rib, a limiting block, a limiting post or a limiting pin, and the first limiting portion 124 is a limiting groove or a limiting hole adapted to the limiting block, the limiting post or the limiting pin.

[0046] Exemplarily, please refer to Figure 4 and Figure 7 , the third limiting portion 240 is a positioning rib, and the first limiting portion 124 and the second housing 120 form a limiting groove cooperating with the third limiting portion 240. In this way, while enabling the second housing 120 to have better stability, the thickness of the second housing 120 can be reduced, the opening area of the second housing 120 can be reduced, and the structural strength of the second housing 120 can be improved.

[0047] Regarding that the second housing 120 is provided with the second limiting portion 125, the first housing 110 is provided with the fourth limiting portion 114 which is limit-connected to the second limiting portion 125; wherein, the second limiting portion 125 can be a limiting rib, a limiting block, a limiting post or a limiting pin, and the fourth limiting portion 114 is a limiting groove or a limiting hole adapted to the limiting block, the limiting post or the limiting pin. Or, the fourth limiting portion 114 can be a limiting rib, a limiting block, a limiting post or a limiting pin, and the second limiting portion 125 is a limiting groove or a limiting hole adapted to the limiting block, the limiting post or the limiting pin.

[0048] Preferably, the fourth limiting portion 114 selects one of the limiting block, the limiting post or the limiting pin, and the second limiting portion 125 is a limiting groove or a limiting hole adapted to the limiting block, the limiting post or the limiting pin. In this way, the thickness of the first housing 110 can be reduced, the opening area of the first housing 110 can be reduced, and the structural strength of the first housing 110 can be improved.

[0049] The installation process of the housing 100 is as follows. First, taking the first limiting portion 124 of the second housing 120 as a reference, the second buckle 123 provided on the second housing 120 is buckled and fixed with the second card slot 202. The first limiting portion 124 and the third limiting portion 240 provided on the mounting bracket 200 are limited and fixed. At this time, the second housing 120 is restricted in position upward by the third limiting portion 240 and downward by the mounting bracket 200. In this way, the second housing 120 has better stability. Then, the first housing 110 is buckled and fixed with the first card slot 201 through the first buckle 113. During the installation process, it is necessary to ensure the limiting connection between the fourth limiting portion 114 and the second limiting portion 125 at the same time. At this time, the first housing 110 is restricted in position upward by the second limiting portion 125 and downward by the mounting bracket 200. Moreover, the buckle in the first housing 110 is inserted into the first card slot 201 of the mounting bracket 200 to ensure two-way limitation and better structural stability.

[0050] The technical solution of the present utility model is that a card slot is provided at the end of the fan mounting seat 220 close to the ventilation opening 101. The card slot is located on the side of the fan mounting seat 220 close to the bottom plate 210. Mounting buckles adapted to the card slot are convexly provided on the inner walls of the first housing 110 and the second housing 120. So that the fan mounting seat 220 and the housing 100 can be fixed by simple buckles without using additional screws or tools. Only by aligning the card slot and the buckle for buckling or unbuckling can the installation be completed, reducing the installation difficulty of the housing 100. Secondly, by providing buckles on the housing 100, the opening area of the housing 100 can be reduced, thereby improving the structural strength of the housing 100 at the ventilation opening 101. In addition, by providing the first limiting portion 124 and the second limiting portion 125 on the second housing 120, the mounting bracket 200 is provided with a third limiting portion 240 that is limitedly connected to the first limiting portion 124, and the first housing 110 is provided with a fourth limiting portion 114 that is limitedly connected to the second limiting portion 125, the installation stability of the housing 100 can be improved.

[0051] In an exemplary embodiment, the first housing 110 includes a first housing body 111 and two first bending portions 112 respectively provided on both sides of the first housing body 111. The first buckle 113 and the fourth limiting portion 114 are provided on the side of the first bending portion 112 away from the first housing body 111; the second housing 120 includes a second housing body 121 and two second bending portions 122 respectively provided on both sides of the second housing body 121. The buckle, the first limiting portion 124 and the second limiting portion 125 are provided on the side of the second bending portion 122 away from the second housing body 121; the fourth limiting portion 114 and the second limiting portion 125 are in contact.

[0052] Thus, the first housing 110 and the second housing 120 are bent, which increases the structural strength and rigidity of the housing, makes the overall structure more robust, can withstand greater external forces and pressures, and is not easily deformed. The first housing 110 and the second housing 120 are connected and limited through their respective bending parts and corresponding buckles and limiting parts. Through the mutual cooperation of the first buckle 113, the fourth limiting part 114, the buckle, the first limiting part 124 and the second limiting part 125, the first housing 110 and the second housing 120 can be tightly combined, providing a stable structural connection and reducing the possibility of loosening or separation.

[0053] In one embodiment, in order to further improve the installation stability of the housing 100 and the mounting bracket 200, the mounting bracket 200 is provided with a positioning member 230 on the side where the fan mounting seat 220 is located. The positioning member 230 is provided with a first positioning part 231 and a second positioning part 232. The first bending part 112 is provided with a third positioning part 115 that is cooperatively and positionally connected with the first positioning part 231, and the second bending part 122 is provided with a fourth positioning part 126 that is cooperatively and positionally connected with the second positioning part 232.

[0054] Regarding the positioning member 230 being provided with the first positioning part 231, the first bending part 112 is provided with a third positioning part 115 that is cooperatively and positionally connected with the first positioning part 231. Among them, the first positioning part 231 can be a positioning rib, a positioning block, a positioning post or a positioning pin, and the third positioning part 115 is a positioning groove or a positioning hole adapted to the positioning block, the positioning post or the positioning pin. Or, the third positioning part 115 can be a positioning rib, a positioning block, a positioning post or a positioning pin, and the first positioning part 231 is a positioning groove or a positioning hole adapted to the positioning block, the positioning post or the positioning pin.

[0055] Preferably, the third positioning part 115 can be a positioning rib, a positioning block, a positioning post or a positioning pin, and the first positioning part 231 is a positioning groove or a positioning hole adapted to the positioning block, the positioning post or the positioning pin. In this way, the thickness of the first housing 110 can be reduced, the opening area of the first housing 110 can be reduced, and the structural strength of the first housing 110 can be improved.

[0056] Regarding the positioning member 230 being provided with the second positioning part 232, the second bending part 122 is provided with a fourth positioning part 126 that is cooperatively and positionally connected with the second positioning part 232. Among them, the second positioning part 232 can be a positioning rib, a positioning block, a positioning post or a positioning pin, and the fourth positioning part 126 is a positioning groove or a positioning hole adapted to the positioning block, the positioning post or the positioning pin. Or, the fourth positioning part 126 can be a positioning rib, a positioning block, a positioning post or a positioning pin, and the second positioning part 232 is a positioning groove or a positioning hole adapted to the positioning block, the positioning post or the positioning pin.

[0057] Preferably, the fourth positioning portion 126 adopts a positioning rib, a positioning block, a positioning column or a positioning pin, and the second positioning portion 232 is a positioning groove or a positioning hole adapted to the positioning block, the positioning column or the positioning pin. In this way, the thickness of the second housing 120 can be reduced, the opening area of the second housing 120 can be reduced, and the structural strength of the first housing 120 can be improved.

[0058] Furthermore, in order to simplify the structure of the mounting bracket 200 and improve the structural strength of the mounting bracket 200, the bottom plate 210, the fan mounting seat 220 and the positioning member 230 are integrally formed.

[0059] Based on any of the above embodiments, the fan mounting seat 220 includes a seat body 221, a bottom groove body 222, a first side groove body 223, a second side groove body 224 and a third side groove body 225 provided on the bottom groove body 222; the seat body 221 is provided on the bottom plate 210, the bottom groove body 222 is respectively connected to the seat body 221 and the bottom plate 210, the first side groove body 223 is connected to the bottom plate 210, the second side groove body 224 is connected to the seat body 221, and the bottom plate 210, the seat body 221, the bottom groove body 222, the first side groove body 223 and the second side groove body 224 enclose a groove; at this time, the first buckle 113 and the second buckle 123 are simultaneously buckled with the groove, and at this time, a disassembly opening 102 is formed between the first housing 110 and the second housing 120, which is convenient for the installation of the first housing 110 and the second housing 120.

[0060] In one embodiment, the third side groove body 225 is provided in the groove and divides the groove into a first card slot 201 and a second card slot 202, the first buckle 113 is buckled with the first card slot 201, and the second buckle 123 is buckled with the second card slot 202.

[0061] Based on any of the foregoing embodiments, please refer to Figure 2 、 Figure 6 and Figure 8 , in order to facilitate the disassembly of the first housing 110 and the second housing 120, a disassembly opening 102 is provided on the outer side walls of the first housing 110 and the second housing 120 near the edge of the third side groove body 225.

[0062] The technical solution of this embodiment is that a slot is provided at the end of the fan mounting seat 220 near the vent 101, and the slot is located on the side of the fan mounting seat 220 near the bottom plate 210, and a mounting buckle that matches the slot is convexly provided on the inner wall of the first shell 110 and the second shell 120. The fan mounting seat 220 and the housing 100 can be fixed by a simple buckle, and no additional screws or tools are needed. The installation can be completed by aligning the slot and the buckle to engage or disengage the buckle, which reduces the installation difficulty of the housing 100. Secondly, by arranging the buckle on the housing 100, the opening area of the housing 100 can be reduced, thereby improving the structural strength of the housing 100 at the vent 101. The disassembly port 120 is provided to facilitate the disassembly of the first housing 110 and the second housing 120. In this way, this embodiment has the advantage of reducing the difficulty of disassembly of the first housing 110 and the second housing 120.

[0063] In one embodiment, see Figure 6 and Figure 8 In order to facilitate the installation of the first shell 110, the outer side wall of the first side groove 223 is provided with a first guiding inclined surface 223a, and the first buckle 113 is provided with a first guiding cut surface 103 that cooperates with the first guiding inclined surface 223a.

[0064] In one embodiment, please continue to refer to Figure 6 and Figure 8 In order to facilitate the installation of the first shell 110 and the second shell 120, the seat body 221 is provided with a protrusion 226 on the side away from the card slot, and the protrusion 226 is provided with a second guide inclined surface 226a, and the second buckle 123 is provided with a second guide cut surface 104 that cooperates with the second guide inclined surface 226a.

[0065] The utility model also proposes a servo system, which includes a servo drive device 10. The specific structure of the servo drive device 10 refers to the above embodiment. Since the servo system adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here. The servo system is widely used in industrial automation (such as CNC 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.) due to its high precision, high response speed and high reliability.

[0066] 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.

[0067] 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.

[0068] The servo motor performs precise rotational or linear motion according to the commands of the servo drive device 10. Common servo motors include AC servo motors, DC servo motors, and stepper motors.

[0069] 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.

[0070] The working principle of the servo system: The servo system generally 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:

[0071] Input of command signal: The control system (such as a PLC or a host computer) sends control signals (position, speed, or torque commands) to the servo drive device 10.

[0072] Generation of drive signal: The servo drive device 10 calculates the required drive current or voltage according to the command signal and outputs it to the servo motor.

[0073] Execution of motor motion: The servo motor performs corresponding motion tasks (rotational or linear motion) according to the drive signal.

[0074] Obtaining of feedback signal: The feedback device measures the actual motion state of the motor and feeds back this data to the servo drive device 10.

[0075] 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 command signal to improve the motion accuracy and response speed of the motor.

[0076] The above is only an exemplary embodiment of the present utility model, and does not limit the patent scope of the present utility model. Any equivalent structural transformation made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields, is included in the patent protection scope of the present utility model.

Claims

1. A servo drive device, characterized in that, include: The housing comprises a first shell and a second shell, wherein at least one of the first shell and the second shell is provided with a vent; as well as The mounting bracket comprises a bottom plate and a fan mounting seat, wherein the bottom plate, the first shell and the second shell define a mounting cavity, and the fan mounting seat is disposed on the bottom plate and located in the mounting cavity; The fan mounting seat is provided with a first card slot and a second card slot at an end portion close to the vent, the first card slot and the second card slot are located at a side of the fan mounting seat close to the bottom plate, the first shell is provided with a first buckle on its inner wall adapted to be mounted in the first card slot, and the second shell is provided with a second buckle on its inner wall adapted to be mounted in the second card slot; The second shell is provided with a first limiting portion and a second limiting portion, the mounting bracket is provided with a third limiting portion which is limit-connected to the first limiting portion, and the first shell is provided with a fourth limiting portion which is limit-connected to the second limiting portion.

2. The servo drive device according to claim 1, characterized in that, A limiting groove is arranged between the first limiting portion and the second shell, and the third limiting portion is inserted into the limiting groove.

3. The servo drive device according to claim 1, wherein, The first shell comprises a first shell body and two first bending parts respectively arranged on both sides of the first shell body, and the first buckle and the fourth limiting part are arranged on one side of the first bending part away from the first shell body; The second shell includes a second shell body and two second bending parts respectively arranged on both sides of the second shell body, and the buckle, the first limiting part and the second limiting part are arranged on the side of the second bending part away from the second shell body; the fourth limiting part is in abutment with the second limiting part.

4. The servo drive device according to claim 3, wherein, The mounting bracket is provided with a positioning member on the side where the fan mounting seat is located, and the positioning member is provided with a first positioning portion and a second positioning portion. The first bending portion is provided with a third positioning portion which cooperates with and is positioned with the first positioning portion. The second bending portion is provided with a fourth positioning portion which is matched and positioned with the second positioning portion.

5. The servo drive device according to claim 4, characterized in that, The bottom plate, the fan mounting seat and the positioning member are integrally formed.

6. The servo drive device according to any one of claims 1 to 5, characterized in that, The fan mounting seat comprises a seat body, a bottom slot body, and a first side slot body, a second side slot body and a third side slot body arranged on the bottom slot body; The seat body is arranged on the bottom plate, the bottom trough body is respectively connected to the seat body and the bottom plate, the first side trough body is connected to the bottom plate, the second side trough body is connected to the seat body, and the bottom plate, the seat body, the bottom trough body, the first side trough body and the second side trough body are surrounded to form a groove; The third side slot is disposed in the groove and divides the groove into a first card slot and a second card slot. The first card buckle is buckled with the first card slot, and the second card buckle is buckled with the second card slot.

7. The servo drive device according to claim 6, characterized in that, The outer side walls of the first shell and the second shell are provided with disassembly openings at the edges close to the third side groove.

8. The servo drive device according to claim 6, characterized in that, The outer side wall of the first side groove body is provided with a first guiding inclined surface, and the first buckle is provided with a first guiding cut surface which cooperates with the first guiding inclined surface.

9. The servo drive device according to claim 8, characterized in that, The seat body is provided with a convex portion on one side away from the clamping slot, the convex portion is provided with a second guiding inclined surface, and the second buckle is provided with a second guiding cut surface that cooperates with the second guiding inclined surface.

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

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