Aluminum alloy shell hot jacket machine based on electromagnetic induction heating

Abstract

The utility model provides an aluminum alloy shell hot jacket machine based on electromagnetic induction heating, which belongs to the technical field of motor processing, and comprises a base, an electromagnetic induction heating rapid feeding assembly and a rapid cooling assembly, and the rapid cooling assembly comprises a third electric cylinder arranged at the top of a protection box. The device has the beneficial effects that a user opens the third electric cylinder through the controller, so that the third electric cylinder moves downwards, then the cover cylinder is driven by the connecting disc to move downwards, then the shell is half-covered, and attention needs to be paid to that the hose can move along with the cover cylinder when the cover cylinder moves, and the hose is relatively long and is prevented from being cracked; a user turns on the fan through the controller, so that the fan generates wind power, the wind power is fed into the distribution ring through the hose, and the wind power is fed into the cover cylinder through the distribution ring and the conveying pipe to blow the shell, so that the shell is quickly cooled, the stator core and the winding are fixed, and the purpose of quick cooling and fixing is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of motor processing technology, specifically relating to a heat fitting machine for aluminum alloy shells based on electromagnetic induction heating. Background Technology

[0002] The outer diameter of the stator coil is generally slightly larger than the inner diameter of the stator housing to ensure a tight fit between the stator housing and the stator coil. This assembly method is called gapless assembly. When assembling the stator housing with the stator, the stator housing needs to be heated first. After heating, the inner diameter of the stator housing increases due to thermal expansion and contraction, allowing the stator coil, whose outer diameter is originally slightly larger than the inner diameter of the stator housing, to be assembled into the stator housing. When the stator housing cools down, its inner diameter shrinks, clamping the stator coil and completing the gapless assembly. A search reveals that application number "CN202221071711.4" discloses "A High-Frequency Stator Housing Heat Fitting Machine with a Guide Structure," which describes... "The installation of connecting plate 1, guide rod, square rod, clamping plate, connecting rod, electric telescopic rod, and connecting block can guide the vertical movement of the stator during stator and housing installation, allowing the stator to fall straight into the housing and preventing stator offset, thus improving installation efficiency." However, the above-mentioned document still has the following problems in actual use:

[0003] In actual use, heating the shell for feeding is inconvenient, resulting in slow work efficiency. Furthermore, the shell cannot be cooled quickly to shrink during use, further reducing work efficiency.

[0004] Therefore, providing a heat jacketing machine that can achieve rapid heating and feeding, as well as rapid cooling, is highly practical. Utility Model Content

[0005] The purpose of this invention is to provide a heat fitting machine for aluminum alloy shells based on electromagnetic induction heating, in order to solve the above-mentioned technical problems.

[0006] This utility model provides a heat-shrinking machine for aluminum alloy shells based on electromagnetic induction heating, including a base, an electromagnetic induction heating rapid feeding component, and a rapid cooling component.

[0007] The base has a protective box on top.

[0008] The electromagnetic induction heating rapid feeding assembly includes a connecting box sealed and connected to one side of a protective box. The bottom of the connecting box is sealed and connected to a conveying cylinder. Electromagnetic induction heaters are provided at both ends of the conveying cylinder. A movable plate is slidably connected inside the connecting box. Several electric telescopic rods are provided on both sides of the inner wall of the movable plate. Two auxiliary plates are provided at the ends of the electric telescopic rods. Several movable frames are provided at the bottom of the two auxiliary plates. Two movable boxes are provided at the ends of the movable frames. A torque motor is provided at one end of each of the two movable boxes. A lead screw is provided through the output shaft of the torque motor through one side of the inner wall of the movable box. A movable plate is threaded to the outside of the lead screw. Two fixed plates are provided at one end of the movable plate. A clamping plate is provided at one end of the two fixed plates.

[0009] The rapid cooling assembly includes a third electric cylinder located at the top of the protective box. The output shaft of the third electric cylinder passes through the top of the inner wall of the protective box and is connected to a connecting plate. A cover is located at the bottom of the connecting plate. The outer wall of the cover is sealed and connected to several conveying pipes. The outer wall of the several conveying pipes is sealed and connected to a distribution ring. One end of the distribution ring is sealed and connected to a flexible hose. One end of the flexible hose passes through the protective box and is sealed and connected to a fan. One end of the fan is fixedly connected to the protective box.

[0010] In one embodiment of this utility model, a first electric cylinder is provided on the top of the connecting box, and the output shaft end of the first electric cylinder passes through the connecting box and is fixedly connected to the moving plate.

[0011] In one embodiment of this utility model, a connecting groove is provided on one side of the connecting box, and the outer walls of the two torque motors are slidably connected to the connecting groove. A second electric cylinder is provided at the bottom of the inner wall of the base, and a pusher plate is provided through the output shaft end of the second electric cylinder through the base. A limit rod is provided inside the moving box, and the top of the moving piece is slidably connected to the limit rod.

[0012] In one embodiment of this utility model, the bottom of the movable plate has two sliding grooves, the outer walls of several movable frames are slidably connected to the sliding grooves, one end of the movable box has two auxiliary grooves, and the outer walls of the two fixed plates are slidably connected to the auxiliary grooves.

[0013] In one embodiment of this utility model, a functional box is provided at the bottom of the inner wall of the protective box, a servo motor is provided at the bottom of the inner wall of the functional box, a turntable is provided through the output shaft end of the servo motor through the functional box, a support platform is provided at the top of the turntable, a plurality of support seats are provided at the top of the support platform, and an auxiliary ring is provided at the bottom of the turntable, the bottom of the auxiliary ring being rotatably connected to the functional box.

[0014] In one embodiment of this utility model, the outer walls of several electric telescopic rods are provided with two reinforcing plates, and the outer walls of the two reinforcing plates are fixedly connected to the movable plate. A controller is provided at the top corner of the base.

[0015] In one embodiment of this utility model, the electromagnetic induction heater, the electric telescopic rod, the torque motor, the first electric cylinder, the second electric cylinder, and the servo motor are all electrically connected to the controller, and the controller is electrically connected to an external power supply.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1) The included pusher plate facilitates easy installation of the stator core and windings within the aluminum alloy housing. The user places the stator core and windings on the support base and the aluminum alloy housing on the pusher plate. The user then activates the second electric cylinder via the controller, which pushes the pusher plate upwards, feeding it into the conveyor cylinder. Simultaneously, the controller activates the electromagnetic induction heater to heat the housing. Based on the principle of thermal expansion and contraction, the housing expands upon heating. After expansion, the second electric cylinder continues to push the pusher plate, feeding the housing into the connecting box. Finally, the user activates the electric telescopic rod via the controller, causing the electric telescopic rod to... The auxiliary plate then moves the moving frame, which in turn moves the moving box and the clamping plate to clamp the housing. By controlling the first electric cylinder, the moving plate and its bottom parts move upward. After the movement is completed, the user turns on the torque motor through the controller. The torque motor drives the lead screw to rotate. The lead screw, through the cooperation of the external thread and the limit rod, causes the moving plate to move the fixed plate and then the clamping plate to move, sending the housing into one of the support seats in the protective box. By driving the first electric cylinder, it moves the inside of the moving plate and its bottom parts downward, and then puts the housing onto the stator core and windings on the support seat, thereby achieving the purpose of rapid heating and feeding.

[0018] 2) The third electric cylinder facilitates the operation of the servo motor via the controller after the heated shell is placed on the stator core and windings. The servo motor drives the turntable to rotate, which in turn drives the support base to rotate the stator core, windings, and shell on the support base to the bottom of the cover. At this time, the user opens the third electric cylinder via the controller, causing it to move downwards. This movement then drives the cover downwards via the connecting plate, partially covering the shell. It is important to note that "the flexible hose should move with the cover, and the hose should be long enough to prevent breakage." After the shell is fully covered, the user opens the fan via the controller, generating airflow that is delivered through the flexible hose to the distribution ring. The distribution ring then delivers the airflow through the delivery pipe into the cover to cool the shell rapidly, thus securing the stator core and windings and achieving rapid cooling and fixation. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of one end of the structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the other end of the structure of this utility model;

[0023] Figure 4 This is an enlarged structural diagram of the internal structure of the connector box of this utility model;

[0024] Figure 5 This is a schematic diagram of the internal structure of the mobile box of this utility model.

[0025] In the diagram: 100, base; 110, protective box; 200, electromagnetic induction heating rapid feeding assembly; 210, connecting box; 220, electromagnetic induction heater; 230, moving plate; 240, electric telescopic rod; 250, moving frame; 260, moving box; 270, torque motor; 280, lead screw; 290, moving piece; 2910, fixing plate; 2920, clamping plate; 300, rapid cooling assembly; 310, third electric cylinder; 320, connecting plate; 330, cover; 340, distribution ring; 350, hose; 360, fan; 400, first electric cylinder; 500, second electric cylinder; 600, push plate; 700, limit rod; 800, function box; 900, servo motor; 1000, turntable; 1100, support platform; 1200, support base. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] Example

[0028] Please see Figure 1-5A heat-shrinking machine for aluminum alloy shells based on electromagnetic induction heating includes a base 100, an electromagnetic induction heating rapid feeding assembly 200, and a rapid cooling assembly 300.

[0029] Please refer to the details. Figure 1 A protective box 110 is provided on the top of the base 100.

[0030] Please see Figure 1-5 The electromagnetic induction heating rapid feeding assembly 200 includes a connecting box 210 sealed and connected to one side of the protective box 110. The bottom of the connecting box 210 is sealed and connected to a conveying cylinder. Electromagnetic induction heaters 220 are provided at both ends of the conveying cylinder. A movable plate 230 is slidably connected inside the connecting box 210. Several electric telescopic rods 240 are provided on both sides of the inner wall of the movable plate 230. Two auxiliary plates are provided at the ends of the electric telescopic rods 240. Several movable frames 250 are provided at the bottom of the two auxiliary plates. Two movable boxes 260 are provided at the ends of the movable frames 250. A torque motor 270 is provided at one end of each of the two movable boxes 260. A lead screw 280 is provided through the output shaft end of the torque motor 270 and passes through one side of the inner wall of the movable box 260. A movable plate 290 is threaded to the outside of the lead screw 280. Two fixed plates 2910 are provided at one end of the movable plate 290. A clamping plate 2920 is provided at one end of the two fixed plates 2910.

[0031] In one specific embodiment, the provided pusher plate 600 facilitates the installation of the stator core and windings into the aluminum alloy shell. The user places the stator core and windings on the support base 1200 and the aluminum alloy shell on the pusher plate 600. The user then activates the second electric cylinder 500 via the controller, which pushes the pusher plate 600 upwards, sending the shell into the conveyor cylinder. The controller then activates the electromagnetic induction heater 220 to heat the shell. Based on the principle of thermal expansion and contraction, the shell expands after heating. After expansion, the second electric cylinder 500 continues to push the pusher plate 600, sending the shell into the connecting box 210. The user then activates the electric telescopic rod 240 via the controller, which moves the auxiliary plate, then the moving frame 250, which in turn moves the moving box 260, which in turn moves the clamping plate 2920 to clamp the shell. The first electric cylinder 400 is controlled to move the moving plate 230 and its bottom parts upward. After the movement is completed, the user turns on the torque motor 270 through the controller. The torque motor 270 drives the lead screw 280 to rotate. The lead screw 280, through the cooperation of the external thread and the limit rod 700, causes the moving plate 290 to move the fixed plate 2910 and then the clamping plate 2920 to move, sending the housing into one of the support seats 1200 in the protective box 110. Then, by driving the first electric cylinder 400, it drives the inside of the moving plate 230 and its bottom parts downward, and then puts the housing on the stator core and windings on the support seat 1200, waiting for cooling. At this time, the user controls it to reset, waiting for the next operation. It should be noted that "the user can connect the above operations together through the programmable controller" to achieve the purpose of electromagnetic induction heating and rapid feeding.

[0032] Please see Figure 1-5 The rapid cooling assembly 300 includes a third electric cylinder 310 disposed on the top of the protective box 110. The output shaft end of the third electric cylinder 310 passes through the inner wall of the protective box 110 and is provided with a connecting plate 320 at the top. A cover 330 is provided at the bottom of the connecting plate 320. A plurality of conveying pipes are sealed and connected to the outer wall of the cover 330. A distribution ring 340 is sealed and connected to the outer wall of the plurality of conveying pipes. A hose 350 is sealed and connected to one end of the distribution ring 340. A fan 360 is sealed and connected to one end of the hose 350 through the protective box 110. One end of the fan 360 is fixedly connected to the protective box 110.

[0033] In one specific embodiment, the third electric cylinder 310 facilitates the following: after the heated housing is fitted onto the stator core and windings, the user activates the servo motor 900 via a controller. The servo motor 900 drives the turntable 1000 to rotate, which in turn drives the support base 1200 via the support platform 1100. The support base 1200, containing the stator core, windings, and housing, rotates to the bottom of the cover 330. At this point, the user activates the third electric cylinder 310 via the controller, causing it to move downwards, which in turn drives the connecting plate 320. The cover 330 moves downwards to partially cover the housing. It should be noted that "the flexible hose 350 should move with the cover 330. The flexible hose 350 is relatively long and should be kept from breaking." After the housing is fully covered, the user turns on the fan 360 through the controller to generate airflow. The airflow is then sent through the flexible hose 350 into the distribution ring 340, and through the distribution ring 340, the airflow is sent through the delivery pipe into the cover 330 to blow air onto the housing, which cools it down quickly. This is to fix the stator core and windings, thereby achieving the purpose of rapid cooling and fixation.

[0034] Please see Figure 1-5 A first electric cylinder 400 is provided on the top of the connecting box 210. The output shaft end of the first electric cylinder 400 passes through the connecting box 210 and is fixedly connected to the moving plate 230.

[0035] In one specific embodiment, the first electric cylinder 400 is provided so that the moving plate 230 and its bottom parts can be moved upward during use, so that the material can be delivered and the work efficiency can be improved.

[0036] Please see Figure 1-5 A connecting groove is provided on one side of the connecting box 210. The outer walls of the two torque motors 270 are slidably connected to the connecting groove. A second electric cylinder 500 is provided at the bottom of the inner wall of the base 100. The output shaft end of the second electric cylinder 500 passes through the base 100 and is provided with a push plate 600. A limit rod 700 is provided inside the moving box 260. The top of the moving piece 290 is slidably connected to the limit rod 700.

[0037] In one specific embodiment, the provided connecting groove facilitates sliding within the connecting groove when the torque motor 270 moves, thereby achieving more stable movement. Furthermore, the provided push disk 600 facilitates the use of the second electric cylinder 500 to continue pushing the push disk 600 to send the housing into the connecting box 210 during use.

[0038] Please see Figure 1-5 The bottom of the movable plate 230 has two sliding grooves, and the outer walls of several movable frames 250 are slidably connected to the sliding grooves. One end of the movable box 260 has two auxiliary grooves, and the outer walls of two fixed plates 2910 are slidably connected to the auxiliary grooves.

[0039] In one specific embodiment, the auxiliary groove facilitates stable movement of the fixed plate 2910 during use, and the movable frame 250 facilitates auxiliary movement of the movable plate 2910 during use using the sliding groove.

[0040] Please see Figure 1-5 The bottom of the inner wall of the protective box 110 is provided with a function box 800. The bottom of the inner wall of the function box 800 is provided with a servo motor 900. The output shaft end of the servo motor 900 passes through the function box 800 and is provided with a turntable 1000. The top of the turntable 1000 is provided with a support platform 1100. The top of the support platform 1100 is provided with several support seats 1200. The bottom of the turntable 1000 is provided with an auxiliary ring. The bottom of the auxiliary ring is rotatably connected to the function box 800.

[0041] In one specific embodiment, the servo motor 900 drives the turntable 1000 to rotate, which in turn drives the support base 1200 via the support platform 1100, rotating the support base 1200, which has a stator core, windings and housing, to the bottom of the cover 330.

[0042] Please see Figure 1-5 The outer walls of several electric telescopic poles 240 are provided with two reinforcing plates, and the outer walls of the two reinforcing plates are fixedly connected to the movable plate 230. A controller is provided at the top corner of the base 100.

[0043] In one specific embodiment, the provided reinforcing plate facilitates the support and fixation of the electric telescopic rod 240 during use, making it more stable and preventing swaying during use.

[0044] Please see Figure 1-5 The electromagnetic induction heater 220, electric telescopic rod 240, torque motor 270, first electric cylinder 400, second electric cylinder 500 and servo motor 900 are all electrically connected to the controller, and the controller is electrically connected to an external power supply.

[0045] In one specific embodiment, a controller is provided to facilitate power supply control of electrical equipment, enabling the equipment to be powered on when needed, thus avoiding situations where power cannot be supplied when power is required.

[0046] In use, the provided pusher plate 600 facilitates the installation of the stator core and windings into the aluminum alloy housing. The user places the stator core and windings on the support base 1200 and the aluminum alloy housing on the pusher plate 600. The user then activates the second electric cylinder 500 via the controller. The second electric cylinder 500 pushes the pusher plate 600 upwards, sending the housing into the conveyor cylinder. The electromagnetic induction heater 220 is then activated via the controller to heat the housing. Based on the principle of thermal expansion and contraction, the housing expands after heating. After expansion, the second electric cylinder 500 continues to push the pusher plate 600, sending the housing into the connecting box 210. At this point, the user activates the controller... The electric telescopic rod 240 then moves the auxiliary plate, which in turn moves the movable frame 250, which in turn moves the movable box 260, which in turn moves the clamping plate 2920 to clamp the housing. The first electric cylinder 400 is controlled to move the movable plate 230 and its bottom parts upwards. After the movement is complete, the user turns on the torque motor 270 via the controller. The torque motor 270 drives the lead screw 280 to rotate. The lead screw 280, through its external thread and engagement with the limit rod 700, causes the movable plate 290 to move the fixed plate 2910, which in turn moves the clamping plate 2920. The housing is then placed into one of the support seats 1200 inside the protective box 110. The first electric cylinder 400 is then driven to move the movable plate 230. The internal parts and bottom components of unit 30 move downwards, then the housing is placed on the stator core and windings on the support base 1200, awaiting cooling. At this time, the user controls it to reset, waiting for the next operation. It should be noted that "the user can connect the above operations together through the programmable controller" to achieve the purpose of rapid feeding by electromagnetic induction heating. Finally, through the provided third electric cylinder 310, after the heated housing is placed on the stator core and windings, the user opens the servo motor 900 through the controller, so that the servo motor 900 drives the turntable 1000 to rotate, which in turn drives the support base 1200 through the support platform 1100, rotating the support base 1200 containing the stator core, windings and housing. When the cover cylinder 330 reaches its bottom, the user opens the third electric cylinder 310 via the controller, causing it to move downwards. This movement, via the connecting plate 320, moves the cover cylinder 330 downwards, partially covering the housing. It is important to note that "the flexible hose 350 should move with the cover cylinder 330; the hose 350 is relatively long and should be kept from bursting." After the housing is fully covered, the user opens the fan 360 via the controller, generating airflow. This airflow is then delivered through the flexible hose 350 into the distribution ring 340, and through the distribution ring 340, the airflow is sent into the cover cylinder 330 via the delivery pipe to cool the housing rapidly. This facilitates the fixation of the stator core and windings, achieving the goal of rapid cooling and fixation.

[0047] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An aluminum alloy shell heat shrink machine based on electromagnetic induction heating, characterized by, Include: Base (100), the top of the base (100) is provided with a protective box (110); Electromagnetic induction heating rapid feeding assembly (200), the electromagnetic induction heating rapid feeding assembly (200) includes a connecting box (210) sealedly communicated on one side of the protective box (110), the bottom of the connecting box (210) is sealedly communicated with a conveying cylinder, both ends of the conveying cylinder are provided with electromagnetic induction heaters (220), the inside of the connecting box (210) is slidably connected with a moving plate (230), both sides of the inner wall of the moving plate (230) are provided with a plurality of electric telescopic rods (240), the end of the plurality of electric telescopic rods (240) is provided with two auxiliary plates, the bottom of the two auxiliary plates is provided with a plurality of moving racks (250), the end of the plurality of moving racks (250) is provided with two moving boxes (260), one end of the two moving boxes (260) is provided with a torque motor (270), the output shaft end of the torque motor (270) penetrates the inner wall of the moving box (260) and is provided with a lead screw (280), the outer thread of the lead screw (280) is connected with a moving piece (290), one end of the moving piece (290) is provided with two fixed plates (2910), one end of the two fixed plates (2910) is provided with a clamping plate (2920); Rapid cooling assembly (300), the rapid cooling assembly (300) includes a third electric cylinder (310) provided on the top of the protective box (110), the output shaft end of the third electric cylinder (310) penetrates the top of the inner wall of the protective box (110) and is provided with a connecting disc (320), the bottom of the connecting disc (320) is provided with a cover cylinder (330), the outer wall of the cover cylinder (330) is sealedly communicated with a plurality of conveying pipes, the outer wall of the plurality of conveying pipes is sealedly communicated with a distribution ring (340), one end of the distribution ring (340) is sealedly communicated with a hose (350), one end of the hose (350) penetrates the protective box (110) and is sealedly communicated with a fan (360), one end of the fan (360) is fixedly connected with the protective box (110).

2. The aluminum alloy shell heat shrink machine based on electromagnetic induction heating according to claim 1, characterized in that: The top of the connecting box (210) is provided with a first electric cylinder (400), the output shaft end of the first electric cylinder (400) penetrates the connecting box (210) and is fixedly connected with the moving plate (230).

3. The electromagnetic induction heating based aluminum alloy shell heat shrink machine according to claim 1, characterized in that: One side of the connecting box (210) is provided with a connecting groove, the outer wall of the two torque motors (270) is slidably connected with the connecting groove, the bottom of the inner wall of the base (100) is provided with a second electric cylinder (500), the output shaft end of the second electric cylinder (500) penetrates the base (100) and is provided with a pushing disc (600), the inside of the moving box (260) is provided with a limiting rod (700), the top inside of the moving piece (290) is slidably connected with the limiting rod (700).

4. The electromagnetic induction heating based aluminum alloy shell heat shrink machine according to claim 1, characterized in that: The bottom of the moving plate (230) is provided with two sliding grooves, the outer walls of the plurality of moving frames (250) are slidably connected with the sliding grooves, one end of the moving box (260) is provided with two auxiliary grooves, and the outer walls of the two fixing plates (2910) are slidably connected with the auxiliary grooves.

5. The electromagnetic induction heating based aluminum alloy shell heat shrink machine according to claim 1, characterized in that: The inner wall bottom of the protection box (110) is provided with a function box (800), the inner wall bottom of the function box (800) is provided with a servo motor (900), the output shaft end of the servo motor (900) penetrates through the function box (800) and is provided with a rotating disc (1000), the top of the rotating disc (1000) is provided with a supporting table (1100), the top of the supporting table (1100) is provided with a plurality of supporting seats (1200), the bottom of the rotating disc (1000) is provided with an auxiliary ring, and the bottom of the auxiliary ring is rotatably connected with the function box (800).

6. The electromagnetic induction heating based aluminum alloy shell heat shrink machine according to claim 3, characterized in that: The outer walls of the plurality of electric telescopic rods (240) are provided with two reinforcing plates, the outer walls of the two reinforcing plates are fixedly connected with the moving plate (230), and the top corners of the base (100) are provided with a controller.

7. The electromagnetic induction heating based aluminum alloy shell sleeving machine according to claim 6, characterized in that: The electromagnetic induction heater (220), the electric telescopic rod (240), the torque motor (270), the first electric cylinder (400), the second electric cylinder (500) and the servo motor (900) are electrically connected with the controller, and the controller is electrically connected with an external power supply.

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