A brake device and operating method of a servo motor

Abstract

The present invention relates to the technical field of servo motor equipment, and specifically to a braking device and operating method of a servo motor, comprising a mounting structure, a sealing structure, a locking structure, a pushing structure, a clamping structure and a buffer structure, wherein the mounting structure is composed of an electromagnetic bin, an oil tank and a coil winding, and the top of the mounting structure is movably abutted against the bottom of the sealing structure, and the sealing structure comprises a sealing cover, a rotating ring and a fan blade, and the clamping block drives a pushing tube to slide on the inner wall of the electromagnetic bin through a connecting block, and performs a primary braking operation on the servo motor through the friction resistance between the pushing tube and the electromagnetic bin and the friction resistance between the pushing block and the pushing groove, and at the same time, the buffer rod drives a buffer plate to rotate in the hydraulic oil in the oil tank through a sealing ring, and performs a secondary braking operation on the servo motor through the resistance of the hydraulic oil to the buffer plate, so that the servo motor can be stopped quickly to avoid affecting the rapid response rate of other equipment connected to the servo motor.

Description

Technical Field

[0001] The present invention relates to the technical field of servo motor equipment, and in particular to a brake device and an operating method of a servo motor. Background Art

[0002] The rotor speed of the servo motor is controlled by the input signal and can respond quickly. In the automatic control system, it is used as an actuator and has the characteristics of small electromechanical time constant and high linearity. It can convert the received electrical signal into angular displacement or angular velocity output on the motor shaft. When used in high-precision fields, the servo motor needs to have a fast braking capability so that the equipment driven by the servo motor can stop quickly and accurately.

[0003] At present, most of the motor brake devices on the market often use a single friction principle between brake pads and brake shoes to achieve the purpose of rapid braking of servo motors. However, in actual use, when the servo motor stops, the brake pads and brake shoes contact and rub to start braking. However, due to the inertia of the output shaft and the equipment installed on it, the servo motor often crosses the target position when it is truly stationary for the first time. At this time, the controller will control the servo motor to restart, so that it forms a reciprocating motion near the target position for fine-tuning. In the process of waiting for this reciprocating fine-tuning motion to tend to the relative static interval that meets the use requirements (the fine-tuning motion in this interval is already very subtle and can meet the high-precision use requirements), a lot of time will be wasted, affecting the rapid response rate of other devices connected to the servo motor. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a brake device and an operating method for a servo motor, which solves the problem that it is inconvenient to fix, dampen and prevent the servo motor from falling.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a brake device for a servo motor, comprising a mounting structure, a sealing structure, a locking structure, a pushing structure, a clamping structure and a buffer structure, wherein the mounting structure is composed of an electromagnetic bin, an oil bin and a coil winding, the top of the mounting structure is movably abutted against the bottom of the sealing structure, the sealing structure comprises a sealing cover, a rotating ring and a fan blade, the outer wall of the sealing structure is fixedly connected to one side of the locking structure, the locking structure is composed of a positioning block, a rotating block, a fixed block, an adjusting rod, a rotating disk, an abutment plate and a guide rod, and the locking The top of the stopping structure is movably abutted against the bottom of the mounting structure, the inner wall of the mounting structure is slidably connected to the outer wall of the pushing structure, the front of the pushing structure is fixedly connected to the back of the clamping structure, the clamping structure is composed of a connecting block, a clamping block and a clamping rod, the outer wall of the top of the clamping structure is slidably abutted against the inner wall of the sealing structure, the outer wall of the clamping structure close to the bottom is movably plugged into the inner wall of the buffer structure, the bottom end of the buffer structure passes through the inner bottom wall of the electromagnetic bin and the inner top wall of the oil bin and extends to the interior of the oil bin, and the oil bin can buffer the movement potential energy of the buffer structure.

[0006] Preferably, the bottom of the electromagnetic bin is fixedly connected to the top of the oil bin, and the inner bottom wall of the electromagnetic bin is provided with a sliding groove for the outer wall of the pushing structure close to the bottom to slide, the sliding groove is annular, and bayonet holes are provided on both sides of the ring, the inner side wall of the electromagnetic bin is provided with an annular pushing groove for the outer wall of one side of the pushing structure to slide, and the inner side wall of the electromagnetic bin located above the pushing groove is fixed with a coil winding by bolts.

[0007] Preferably, a rotating groove for the rotating ring to rotate is provided at the bottom of the sealing cover, and a fan blade is provided on the outer wall of the rotating ring, the bottom of the sealing cover is movably abutted against the top of the electromagnetic warehouse, and the outer wall of the sealing cover is fixedly connected to one side of the locking structure, the inner wall of the rotating ring is provided with a plug-in groove for the outer wall of the top of the clamping structure to slide, and an insertion port is provided at the center of the sealing cover, a sealing ring is provided at the connection between the sealing cover and the electromagnetic warehouse, and a heat dissipation hole is provided on the inner wall of the sealing cover.

[0008] Preferably, one side of the positioning block is fixedly connected to the outer wall of the sealing cover, and the outer wall of the other side of the positioning block is rotatably connected to the inner wall of the rotating block near the top through a positioning rod, the inner side wall of the rotating block near the waist is fixedly connected to the two sides of the fixed block, and the inner wall of the fixed block is threadedly connected to the outer wall of the adjusting rod, the outer wall of the adjusting rod located above the fixed block is snap-connected with the inner wall of the turntable, and the outer wall of the adjusting rod located below the fixed block is rotatably connected with the inner wall of the abutment plate, the outer walls on both sides of the abutment plate are provided with guide rods, and guide holes for the guide rods to slide are opened inside the rotating block, and the top of the abutment plate is movably abutted against the bottom of the electromagnetic bin.

[0009] Preferably, the pushing structure includes a pushing block, a pushing tube, a pushing spring, a pushing plate and a pushing column, the outer wall of the pushing block is slidably connected to the inner wall of the pushing groove, and the side of the pushing block away from the pushing groove is fixedly connected to one end of the pushing tube, the inner bottom wall of the pushing tube is fixedly connected to one end of the pushing spring, and the other end of the pushing spring is fixedly connected to one side of the pushing plate, the inner wall of the pushing tube away from the pushing block is provided with an outer wall plug-in interface for the pushing plate, and the bottom of the pushing plate is fixedly connected to the top of the pushing column, and the outer wall of the pushing column close to the bottom end is slidably abutted against the inner wall of the sliding groove.

[0010] Preferably, a side of the connecting block close to the bottom is fixedly connected to a side of the pushing plate away from the pushing spring, and an outer wall of the connecting block close to the top is fixedly connected to an inner wall of the clamping block, the top of the clamping block is fixedly connected to the bottom end of the clamping rod, the outer wall of the top end of the clamping rod passes through the interior of the plug-in slot and slidably abuts against the inner wall of the rotating ring, and the outer wall of the rotating ring is rotatably connected to the inner wall of the oil tank.

[0011] Preferably, the buffer structure includes a buffer rod, and the bottom end of the buffer rod passes through the inner bottom wall of the electromagnetic bin and the inner top wall of the oil bin and extends to the interior of the oil bin. The outer wall of the buffer rod at one end inside the oil bin is snap-connected with the inner wall of the sealing ring. The outer wall of the sealing ring is provided with a buffer plate, and the outer wall of the buffer plate is slidably abutted against the outer wall of the buffer plate.

[0012] Preferably, the method for using the brake device of a servo motor comprises the following steps:

[0013] S1: Inject thick hydraulic oil into the oil tank, cover the electromagnetic tank with the sealing cover, rotate the rotating block, the rotating block drives the abutment plate to abut against the outer wall of the electromagnetic tank, the turntable drives the adjusting rod to rotate in the fixed block, and the adjusting rod drives the top of the abutment plate to abut against the bottom of the electromagnetic tank under the action of the thread, thereby improving the sealing of the electromagnetic tank, insert the end of the servo motor output shaft into the insertion port of the sealing cover, when braking is required, disconnect the coil winding, and after the clamping block loses its magnetic connection, the connecting block is pushed to move under the telescopic force of the push spring, so that the outer wall of the bottom of the connecting block is inserted into the buffer rod, and the outer wall of the connecting block located inside the clamping block is inserted into the end of the servo motor output shaft, so that the end of the servo motor output shaft is connected to the buffer rod.

[0014] S2: The clamping block drives the push tube to slide on the inner wall of the electromagnetic chamber through the connecting block, and the servo motor is braked once through the friction resistance between the push tube and the electromagnetic chamber and the friction resistance between the push block and the push groove. At the same time, the buffer rod drives the buffer plate to rotate in the hydraulic oil in the oil tank through the sealing ring, and the servo motor is braked twice through the resistance of the hydraulic oil to the buffer plate, so that the servo motor can stop quickly.

[0015] S3: The clamping block starts to rotate under the driving action of the connecting block. The clamping block drives the rotating ring to rotate on the inner wall of the sealing cover through the clamping rod. The rotating ring drives the fan blades to rotate. The fan blades can discharge the heat generated by friction from the heat dissipation port, thereby reducing the temperature in the electromagnetic compartment.

[0016] The present invention provides a brake device and an operating method for a servo motor. Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) The brake device and operation method of the servo motor are used in coordination with each other through the installation structure, the pushing structure, the clamping structure and the buffer structure. The clamping block drives the pushing tube to slide on the inner wall of the electromagnetic bin through the connecting block, and the servo motor is braked once by the friction resistance between the pushing tube and the electromagnetic bin and the friction resistance between the pushing block and the pushing groove. At the same time, the buffer rod drives the buffer plate to rotate in the hydraulic oil in the oil tank through the sealing ring, and the servo motor is braked twice by the resistance of the hydraulic oil to the buffer plate, so that the servo motor can stop quickly to avoid affecting the rapid response rate of other devices connected to the servo motor.

[0018] (2) The brake device and operation method of the servo motor are used in coordination with each other through the installation structure, the sealing structure and the locking structure. Thick hydraulic oil is injected into the oil tank, the sealing cover is covered on the electromagnetic tank, and the rotating block is rotated. The rotating block drives the abutment plate to abut against the outer wall of the electromagnetic tank. The turntable drives the adjusting rod to rotate in the fixed block. Under the action of the thread, the adjusting rod drives the top of the abutment plate to abut against the bottom of the electromagnetic tank, thereby improving the sealing of the electromagnetic tank. The staff can easily open the electromagnetic tank and clean the interior of the electromagnetic tank and the oil tank, which brings convenience to people's cleaning.

[0019] (3) The brake device and operation method of the servo motor are used in coordination with the mounting structure, the sealing structure and the clamping structure. The clamping block starts to rotate under the driving action of the connecting block. The clamping block drives the rotating ring to rotate on the inner wall of the sealing cover through the clamping rod. The rotating ring drives the fan blades to rotate. The fan blades can discharge the heat generated by friction from the heat dissipation port, thereby reducing the temperature in the electromagnetic chamber, avoiding irreversible damage to the internal components caused by the electromagnetic chamber being in a high temperature environment for a long time, and reducing people's economic losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a cross-sectional view of the overall structure of the present invention;

[0022] Figure 3 It is an exploded view of the overall structure of the present invention;

[0023] Figure 4It is an exploded view of the pushing structure, the holding structure and the buffer structure of the present invention;

[0024] Figure 5 It is an exploded view of the sealing structure and locking structure of the present invention.

[0025] In the figure: 1. Installation structure; 101. Electromagnetic compartment; 102. Oil compartment; 103. Coil winding; 2. Sealing structure; 201. Sealing cover; 202. Rotating ring; 203. Fan blade; 3. Locking structure; 301. Positioning block; 302. Rotating block; 303. Fixed block; 304. Adjusting rod; 305. Turntable; 306. Abutment plate; 307. Guide rod; 4. Pushing structure; 401. Pushing block; 402. Pushing tube; 403. Pushing spring; 404. Pushing plate; 405. Pushing column; 5. Holding structure; 501. Connecting block; 502. Holding block; 503. Holding rod; 6. Buffering structure; 601. Buffering rod; 602. Sealing ring; 603. Buffering plate. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-Figure 5 A brake device for a servo motor comprises a mounting structure 1, a sealing structure 2, a locking structure 3, a pushing structure 4, a holding structure 5 and a buffer structure 6. The mounting structure 1 is composed of an electromagnetic bin 101, an oil bin 102 and a coil winding 103. The top of the mounting structure 1 is movably abutted against the bottom of the sealing structure 2. The sealing structure 2 comprises a sealing cover 201, a rotating ring 202 and a fan blade 203. The outer wall of the sealing structure 2 is fixedly connected to one side of the locking structure 3. The locking structure 3 is composed of a positioning block 301, a rotating block 302, a fixed block 303, an adjusting rod 304, a rotating disk 305, an abutting plate 306 and a guide rod 307. The top of the structure 3 is movably abutted against the bottom of the mounting structure 1, the inner wall of the mounting structure 1 is slidably connected to the outer wall of the pushing structure 4, the front of the pushing structure 4 is fixedly connected to the back of the clamping structure 5, the clamping structure 5 is composed of a connecting block 501, a clamping block 502 and a clamping rod 503, the outer wall of the top of the clamping structure 5 is slidably abutted against the inner wall of the sealing structure 2, the outer wall of the clamping structure 5 close to the bottom is movably plugged into the inner wall of the buffer structure 6, the bottom end of the buffer structure 6 passes through the inner bottom wall of the electromagnetic bin 101 and the inner top wall of the oil bin 102 and extends to the interior of the oil bin 102, and the oil bin 102 can buffer the movement potential energy of the buffer structure 6.

[0028] In the present invention, the mounting structure 1 is composed of an electromagnetic bin 101, an oil bin 102 and a coil winding 103. The bottom of the electromagnetic bin 101 is fixedly connected to the top of the oil bin 102, and the inner bottom wall of the electromagnetic bin 101 is provided with a sliding groove for the outer wall of the pushing structure 4 close to the bottom to slide. The sliding groove is annular, and bayonet holes are provided on both sides of the ring. The inner side wall of the electromagnetic bin 101 is provided with an annular pushing groove for the outer wall of one side of the pushing structure 4 to slide, and the inner side wall of the electromagnetic bin 101 located above the pushing groove is fixed with the coil winding 103 by bolts.

[0029] In the present invention, a rotating groove for the rotating ring 202 to rotate is provided at the bottom of the sealing cover 201, and a fan blade 203 is provided on the outer wall of the rotating ring 202. The bottom of the sealing cover 201 is movably abutted against the top of the electromagnetic warehouse 101, and the outer wall of the sealing cover 201 is fixedly connected to one side of the locking structure 3. A plug-in groove for the outer wall of the top of the clamping structure 5 to slide is provided on the inner wall of the rotating ring 202, and an insertion port is provided at the center of the sealing cover 201. A sealing ring is provided at the connection between the sealing cover 201 and the electromagnetic warehouse 101, and a heat dissipation hole is provided on the inner wall of the sealing cover 201.

[0030] In the present invention, one side of the positioning block 301 is fixedly connected to the outer wall of the sealing cover 201, and the outer wall of the other side of the positioning block 301 is rotatably connected to the inner wall of the rotating block 302 near the top through a set positioning rod, the inner side wall of the rotating block 302 near the waist is fixedly connected to the two sides of the fixed block 303, and the inner wall of the fixed block 303 is threadedly connected to the outer wall of the adjusting rod 304, the outer wall of the adjusting rod 304 located above the fixed block 303 is snap-connected with the inner wall of the turntable 305, and the outer wall of the adjusting rod 304 located below the fixed block 303 is rotatably connected with the inner wall of the abutment plate 306, the outer walls on both sides of the abutment plate 306 are provided with guide rods 307, and the interior of the rotating block 302 is provided with guide holes for the guide rods 307 to slide, and the top of the abutment plate 306 is movably abutted against the bottom of the electromagnetic bin 101.

[0031] In the present invention, the pushing structure 4 includes a pushing block 401, a pushing tube 402, a pushing spring 403, a pushing plate 404 and a pushing column 405. The outer wall of the pushing block 401 is slidably connected to the inner wall of the pushing groove, and the side of the pushing block 401 away from the pushing groove is fixedly connected to one end of the pushing tube 402, the inner bottom wall of the pushing tube 402 is fixedly connected to one end of the pushing spring 403, and the other end of the pushing spring 403 is fixedly connected to one side of the pushing plate 404, the inner wall of the pushing tube 402 away from the pushing block 401 is provided with an outer wall plug-in interface for the pushing plate 404, and the bottom of the pushing plate 404 is fixedly connected to the top of the pushing column 405, and the outer wall of the pushing column 405 close to the bottom is slidably abutted against the inner wall of the sliding groove.

[0032] In the present invention, the side of the connecting block 501 close to the bottom is fixedly connected to the side of the pushing plate 404 away from the pushing spring 403, and the outer wall of the connecting block 501 close to the top is fixedly connected to the inner wall of the clamping block 502, the top of the clamping block 502 is fixedly connected to the bottom end of the clamping rod 503, the outer wall of the top end of the clamping rod 503 passes through the interior of the plug-in slot and slides against the inner wall of the rotating ring 202, and the outer wall of the rotating ring 202 is rotatably connected to the inner wall of the oil tank 102.

[0033] In the present invention, the buffer structure 6 includes a buffer rod 601, and the bottom end of the buffer rod 601 passes through the inner bottom wall of the electromagnetic bin 101 and the inner top wall of the oil bin 102 and extends to the interior of the oil bin 102. The outer wall of the buffer rod 601 at one end inside the oil bin 102 is snap-connected with the inner wall of the sealing ring 602. The outer wall of the sealing ring 602 is provided with a buffer plate 603, and the outer wall of the buffer plate 603 is slidably abutted against the outer wall of the buffer plate 603.

[0034] A method for using a brake device of a servo motor comprises the following steps:

[0035] S1: inject thick hydraulic oil into the oil tank 102, cover the electromagnetic tank 101 with the sealing cover 201, rotate the rotating block 302, the rotating block 302 drives the abutment plate 306 to abut against the outer wall of the electromagnetic tank 101, the turntable 305 drives the adjusting rod 304 to rotate in the fixed block 303, and under the action of the thread, the adjusting rod 304 drives the top of the abutment plate 306 to abut against the bottom of the electromagnetic tank 101, thereby improving the sealing of the electromagnetic tank 101, insert the end of the servo motor output shaft into the insertion port of the sealing cover 201, when braking is required, disconnect the coil winding 103, after the clamping block 502 loses its magnetic connection, it pushes the connecting block 501 to move under the telescopic force of the push spring 403, so that the outer wall of the bottom of the connecting block 501 is inserted into the buffer rod 601, and the outer wall of the connecting block 501 located inside the clamping block 502 is inserted into the end of the servo motor output shaft, so that the end of the servo motor output shaft is connected to the buffer rod 601.

[0036] S2: The clamping block 502 drives the pushing tube 402 to slide on the inner wall of the electromagnetic chamber 101 through the connecting block 501, and performs a braking operation on the servo motor through the friction resistance between the pushing tube 402 and the electromagnetic chamber 101 and the friction resistance between the pushing block 401 and the pushing groove. At the same time, the buffer rod 601 drives the buffer plate 603 to rotate in the hydraulic oil in the oil chamber 102 through the sealing ring 602, and performs a secondary braking operation on the servo motor through the resistance of the hydraulic oil to the buffer plate 603, so that the servo motor can stop quickly.

[0037] S3: The clamping block 502 starts to rotate under the driving action of the connecting block 501. The clamping block 502 drives the rotating ring 202 to rotate on the inner wall of the sealing cover 201 through the clamping rod 503. The rotating ring 202 drives the fan blades 203 to rotate. The fan blades 203 can discharge the heat generated by friction from the heat dissipation port, thereby reducing the temperature inside the electromagnetic compartment 101.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A brake device for a servo motor, comprising a mounting structure (1), a sealing structure (2), a locking structure (3), a pushing structure (4), a clamping structure (5) and a buffer structure (6), characterized in that: The mounting structure (1) is composed of an electromagnetic chamber (101), an oil chamber (102) and a coil winding (103); the top of the mounting structure (1) is movably abutted against the bottom of a sealing structure (2); the sealing structure (2) comprises a sealing cover (201), a rotating ring (202) and a fan blade (203); the outer wall of the sealing structure (2) is fixedly connected to one side of a locking structure (3); the locking structure (3) is composed of a positioning block (301), a rotating block (302), a fixed block (303), an adjusting rod (304), a rotating disk (305), an abutment plate (306) and a guide rod (307); the top of the locking structure (3) is movably abutted against the bottom of the mounting structure (1); The inner wall of the mounting structure (1) is slidably connected to the outer wall of the pushing structure (4); the front of the pushing structure (4) is fixedly connected to the back of the clamping structure (5); the clamping structure (5) is composed of a connecting block (501), a clamping block (502) and a clamping rod (503); the outer wall at the top of the clamping structure (5) is slidably abutted against the inner wall of the sealing structure (2); the outer wall of the clamping structure (5) near the bottom is movably plugged into the inner wall of the buffer structure (6); the bottom end of the buffer structure (6) penetrates the inner bottom wall of the electromagnetic bin (101) and the inner top wall of the oil bin (102) and extends to the interior of the oil bin (102); the oil bin (102) is capable of buffering the kinetic potential energy of the buffer structure (6).

2. A servo motor brake device according to claim 1, characterized in that: The bottom of the electromagnetic bin (101) is fixedly connected to the top of the oil bin (102), and the inner bottom wall of the electromagnetic bin (101) is provided with a sliding groove for the outer wall of the pushing structure (4) close to the bottom to slide, the sliding groove is annular, and bayonet holes are provided on both sides of the annular shape, the inner side wall of the electromagnetic bin (101) is provided with an annular pushing groove for the outer wall of one side of the pushing structure (4) to slide, and the inner side wall of the electromagnetic bin (101) located above the pushing groove is fixedly mounted with a coil winding (103) by means of bolts.

3. A servo motor brake device according to claim 2, characterized in that: The bottom of the sealing cover (201) is provided with a rotating groove for the rotating ring (202) to rotate, and the outer wall of the rotating ring (202) is provided with a fan blade (203), the bottom of the sealing cover (201) is movably abutted against the top of the electromagnetic chamber (101), and the outer wall of the sealing cover (201) is fixedly connected to one side of the locking structure (3), the inner wall of the rotating ring (202) is provided with a plug-in groove for the outer wall of the top of the clamping structure (5) to slide, and the center of the sealing cover (201) is provided with an insertion port, a sealing ring is provided at the connection between the sealing cover (201) and the electromagnetic chamber (101), and the inner wall of the sealing cover (201) is provided with a heat dissipation hole.

4. A brake device for a servo motor according to claim 3, characterized in that: One side of the positioning block (301) is fixedly connected to the outer wall of the sealing cover (201), and the outer wall of the other side of the positioning block (301) is rotatably connected to the inner wall of the rotating block (302) near the top through a positioning rod. The inner wall of the rotating block (302) near the waist is fixedly connected to both sides of the fixed block (303), and the inner wall of the fixed block (303) is threadedly connected to the outer wall of the adjusting rod (304). The outer wall of the adjusting rod (304) located above the fixed block (303) is snap-connected to the inner wall of the rotating disk (305), and the outer wall of the adjusting rod (304) located below the fixed block (303) is rotatably connected to the inner wall of the abutment plate (306). The outer walls of both sides of the abutment plate (306) are provided with guide rods (307), and the interior of the rotating block (302) is provided with guide holes for the guide rods (307) to slide. The top of the abutment plate (306) is movably abutted against the bottom of the electromagnetic bin (101).

5. A servo motor brake device according to claim 4, characterized in that: The pushing structure (4) comprises a pushing block (401), a pushing tube (402), a pushing spring (403), a pushing plate (404) and a pushing column (405); the outer wall of the pushing block (401) is slidably connected to the inner wall of the pushing groove, and the side of the pushing block (401) away from the pushing groove is fixedly connected to one end of the pushing tube (402); the inner bottom wall of the pushing tube (402) is fixedly connected to one end of the pushing spring (403), and the other end of the pushing spring (403) is fixedly connected to one side of the pushing plate (404); the inner wall of the pushing tube (402) away from the end of the pushing block (401) is provided with an outer wall plug-in interface for the pushing plate (404), and the bottom of the pushing plate (404) is fixedly connected to the top of the pushing column (405); the outer wall of the pushing column (405) close to the bottom end is slidably abutted against the inner wall of the sliding groove.

6. A servo motor brake device according to claim 5, characterized in that: A side of the connecting block (501) close to the bottom is fixedly connected to a side of the pushing plate (404) away from the pushing spring (403), and an outer wall of the connecting block (501) close to the top is fixedly connected to an inner wall of the clamping block (502), the top of the clamping block (502) is fixedly connected to the bottom end of the clamping rod (503), the outer wall of the top end of the clamping rod (503) passes through the interior of the plug-in slot and is in sliding contact with the inner wall of the rotating ring (202), and the outer wall of the rotating ring (202) is rotatably connected to the inner wall of the oil tank (102).

7. A brake device for a servo motor according to claim 6, characterized in that: The buffer structure (6) comprises a buffer rod (601), the top end of which is provided with a buffer groove for the connection block (501) to be plugged in, and the bottom end of the buffer rod (601) passes through the inner bottom wall of the electromagnetic bin (101) and the inner top wall of the oil bin (102) and extends into the interior of the oil bin (102), the outer wall of the buffer rod (601) located at one end inside the oil bin (102) is snap-connected with the inner wall of the sealing ring (602), the outer wall of the sealing ring (602) is provided with a buffer plate (603), and the outer wall of the buffer plate (603) is in sliding contact with the outer wall of the buffer plate (603).

8. A method for operating a brake device of a servo motor, using a brake device of a servo motor as claimed in any one of claims 1 to 7, characterized in that: The steps include: S1: thick hydraulic oil is injected into the oil tank (102), the sealing cover (201) is covered on the electromagnetic tank (101), and the rotating block (302) is rotated. The rotating block (302) drives the abutment plate (306) to abut against the outer wall of the electromagnetic tank (101), and the rotating disk (305) drives the adjustment rod (304) to rotate in the fixed block (303). Under the action of the thread, the adjustment rod (304) drives the top of the abutment plate (306) to abut against the bottom of the electromagnetic tank (101), thereby improving the sealing performance of the electromagnetic tank (101). The end of the servo motor output shaft is inserted into the insertion port of the sealing cover (201). When braking is required, the coil winding (103) is disconnected, and after the clamping block (502) loses its magnetic connection, the connecting block (501) is pushed to move under the telescopic force of the pushing spring (403), so that the outer wall at the bottom of the connecting block (501) is inserted into the buffer rod (601), and the outer wall of the connecting block (501) located inside the clamping block (502) is inserted into the end of the servo motor output shaft, so that the end of the servo motor output shaft is connected to the buffer rod (601); S2: The clamping block (502) drives the push tube (402) to slide on the inner wall of the electromagnetic chamber (101) through the connecting block (501), and performs a braking operation on the servo motor through the friction resistance between the push tube (402) and the electromagnetic chamber (101) and the friction resistance between the push block (401) and the push groove. At the same time, the buffer rod (601) drives the buffer plate (603) to rotate in the hydraulic oil in the oil chamber (102) through the sealing ring (602), and performs a secondary braking operation on the servo motor through the resistance of the hydraulic oil to the buffer plate (603), so that the servo motor can be stopped quickly; S3: The clamping block (502) starts to rotate under the driving action of the connecting block (501), and the clamping block (502) drives the rotating ring (202) to rotate on the inner wall of the sealing cover (201) through the clamping rod (503). The rotating ring (202) drives the fan blades (203) to rotate. The fan blades (203) can discharge the heat generated by friction from the heat dissipation port, thereby reducing the temperature in the electromagnetic chamber (101).

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