CN217741542U

CN217741542U - Voice coil motor with gravity compensation

Info

Publication number: CN217741542U
Application number: CN202221042113.4U
Authority: CN
Inventors: 刘佳威
Original assignee: Suzhou Yingli Intelligent Drive Technology Co ltd
Current assignee: Suzhou Yingli Intelligent Drive Technology Co ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-11-04
Anticipated expiration: 2032-04-29

Abstract

The utility model belongs to the technical field of voice coil motors, in particular to a voice coil motor with gravity compensation, the side end of a coil body is provided with rotor inner ring magnetic steel and is arranged inside a stator supporting frame; stator braced frame's top has the active cell magnet steel support frame through the lock nut rigid coupling, through installing the tip at stator outer lane magnet steel with the active cell magnet steel support frame, improve the whole protective effect of coil body, there is the coil body through the internally mounted at the voice coil motor body, improve the whole steadiness of voice coil motor body, avoid the voice coil motor body at the during operation, can produce the problem of violent vibration, the tip cover through at the coil body is equipped with the coil protective sheath, come to play the effect of protection to the coil body, avoid the problem that the damage appears in the coil body.

Description

Voice coil motor with gravity compensation

Technical Field

The utility model relates to a voice coil motor technical field specifically is a take gravity compensation's voice coil motor.

Background

The voice coil motor is a special type of direct drive motor; the device has the characteristics of simple structure, small volume, high speed, high acceleration response speed and the like.

In the prior art, when a voice coil motor works for a long time, violent vibration can be generated, the working efficiency of the voice coil motor is influenced, and the quality of a processed workpiece is reduced; therefore, a voice coil motor with gravity compensation is proposed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

In order to compensate the not enough of prior art, solve at the long-time during operation of voice coil motor, can produce violent vibration, influence voice coil motor's work efficiency, the problem that the work piece quality that leads to processing out appears reducing, the utility model provides a take gravity compensation's voice coil motor.

The utility model provides a technical scheme that its technical problem adopted is: the utility model discloses a voice coil motor with gravity compensation, which comprises a voice coil motor body; a stator supporting frame is arranged inside the voice coil motor body; the inner side wall of the stator supporting frame is fixedly connected with a coil framework; the end part of the coil framework is sleeved with a coil body; the end part of the coil body is provided with a coil protective sleeve; the side end of the coil protective sleeve is provided with rotor outer ring magnetic steel; stator inner ring magnetic steel is arranged inside the stator supporting frame; the end part of the stator supporting frame is provided with stator outer ring magnetic steel; the side end of the coil body is provided with rotor inner ring magnetic steel and is arranged inside the stator supporting frame; stator braced frame's top has the active cell magnet steel support frame through the lock nut rigid coupling, through installing the tip at stator outer lane magnet steel with the active cell magnet steel support frame, improve the whole protective effect of coil body, there is the coil body through the internally mounted at the voice coil motor body, improve the whole steadiness of voice coil motor body, avoid the voice coil motor body at the during operation, can produce the problem of violent vibration, the tip cover through at the coil body is equipped with the coil protective sheath, come to play the effect of protection to the coil body, avoid the problem that the damage appears in the coil body.

Preferably, an electric push rod is fixedly connected to the bottom of the voice coil motor body; a clamping block is fixedly connected to the bottom of the electric push rod; a locking groove is formed in the fixture block; the bottom of the voice coil motor body is provided with a base; a clamping groove is formed in the base; a cavity is formed in the base; a locking block is connected inside the cavity in a sliding manner; a first spring is fixedly connected to the side end of the locking block, and the other end of the first spring is fixedly connected to the inner side wall of the cavity; through opening electric putter, can make voice coil motor body rise, correspond each other with the work piece, improve the machining efficiency of voice coil motor body, through installing electric putter in the inside of voice coil motor body, improve the whole steadiness of voice coil motor body.

Preferably, the inner side wall of the clamping groove is connected with a supporting plate in a sliding manner; the bottom of the supporting plate is fixedly connected with a second spring, and the other end of the second spring is fixedly connected to the inner side wall of the clamping groove; when the fixture block slides to the inside of draw-in groove, the extrusion backup pad slides downwards, and the backup pad extrudees the second spring and stretches out and draws back downwards and produce elasticity, and when the locking piece joint was in the inside of locked groove, the second spring produced elasticity and promoted the backup pad and upwards slided. Make the backup pad promote the fixture block, the fixture block receives power for the joint that the locking piece can be more firm is in the inside of locked groove, improves the firm effect of locking piece.

Preferably, a slide hole is formed in the base; a pull rope is fixedly connected to the side end of the locking block and is connected to the inside of the sliding hole in a sliding mode; the top of the pull rope is fixedly connected with a pull ring; through the pulling pull ring for the pull ring drives the stay cord and upwards slides, and stay cord pulling locking piece stretches out and draws back to the inside of cavity, then the inside roll-off of locking piece from the locked groove makes the second spring produce elasticity and promotes the fixture block and upwards slide, then takes out the fixture block, is convenient for overhaul and change the voice coil motor body.

Preferably, two ends of the base are fixedly connected with a water tank; a recovery box is arranged at the top of the base; a water pump is fixedly connected to the inner side wall of the water tank; the end part of the water pump is fixedly connected with a cooling pipe, the end part of the cooling pipe is wound on the surface of the voice coil motor body, and the other end of the cooling pipe is fixedly connected with the side end of the recovery box; a switch unit is arranged inside the cooling pipe; then circulate through the cooling tube for the cooling tube circulates on the surface of voice coil motor body, carries out the heat absorption cooling, improves the radiating effect of voice coil motor body, and the water after the heat absorption circulates when the collection box is inside through the cooling tube, carries out recycle.

Preferably, the switch unit includes an air bag; an air bag is fixedly connected to the inner side wall of the clamping groove; the top of the base is fixedly connected with an air cylinder; an air pipe is communicated between the end part of the rodless cavity of the air cylinder and the side end of the air bag; the inner side wall of the cylinder is connected with a piston plate in a sliding manner; a piston rod is fixedly connected to the side end of the piston plate; a push plate is fixedly connected to the side end of the piston rod; the inner part of the cooling pipe is connected with a blocking plate in a sliding way; a guide plate is fixedly connected to the side end of the blocking plate; the end parts of the guide plate and the push plate are fixedly connected with elastic ropes; the push pedal is at slip in-process pulling stretch cord for stretch cord pulling baffle, baffle receive power pulling jam plate slide to the side, make the cooling tube opened, then the inside water of water tank circulates through the trachea absorption, is convenient for dispel the heat to the voice coil motor body.

Preferably, a limit sealing plate is fixedly connected to the side end of the blocking plate, and the end part of the limit sealing plate is matched with the inner side wall of the cooling pipe; the end part of the cooling pipe is S-shaped; the end part of the locking block is in a semi-arc shape; through installing spacing closing plate, when spacing closing plate followed the jam plate and moved to the side for spacing closing plate joint seals spacingly on the inside wall of cooling tube, avoids the problem that the cooling tube appears leaking.

The utility model discloses an useful part lies in:

1. the utility model discloses an install the tip at stator outer lane magnet steel with active cell magnet steel support frame, improve the whole protecting effect of coil body, internally mounted through at voice coil motor body has the coil body, improve voice coil motor body's whole steadiness, avoid voice coil motor body at the during operation, can produce the problem of violent vibration, the tip cover through at the coil body is equipped with the coil protective sheath, play the effect of protection to the coil body, avoid the problem that the damage appears in the coil body.

2. The utility model discloses a bottom at voice coil motor body is equipped with the base, then there is electric putter at voice coil motor body's bottom rigid coupling, then put into the inside of draw-in groove with electric putter, electric putter drives the inside wall lapse of fixture block at the draw-in groove, make fixture block extrusion locking piece, the locking piece receives the inside extrusion first spring that the power is flexible to the cavity and produces elasticity, when the locked groove aligns the cavity, first spring produces elasticity and promotes the inside that the locking piece inserted the locked groove and carries out the joint fixed, when needs carry out height-adjusting to voice coil motor body, through opening electric putter, can make voice coil motor body rise, and the work piece carries out mutual correspondence, the machining efficiency of voice coil motor body is improved, through installing electric putter in the inside of voice coil motor body, the whole steadiness of voice coil motor body is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.

FIG. 1 is a sectional view of the first embodiment;

fig. 2 is a schematic structural view of a stator support frame according to the first embodiment;

FIG. 3 is an enlarged view of FIG. 1 at A;

FIG. 4 is an enlarged view of FIG. 1 at B;

FIG. 5 is a schematic view of a lock block according to the first embodiment;

fig. 6 is a schematic structural view of the elastic piece according to the second embodiment.

In the figure: 1. a voice coil motor body; 11. a stator support frame; 12. a coil former; 13. a coil body; 14. a coil protective sleeve; 15. rotor outer ring magnetic steel; 16. stator inner ring magnetic steel; 17. stator outer ring magnetic steel; 18. rotor inner ring magnetic steel; 19. locking the nut; 191. a rotor magnetic steel support frame; 2. a base; 21. an electric push rod; 22. a card slot; 23. a cavity; 24. a locking block; 25. a first spring; 26. a clamping block; 27. locking the groove; 31. a slide hole; 32. pulling a rope; 33. a pull ring; 34. a second spring; 35. a support plate; 51. a water tank; 52. a water pump; 53. a cooling tube; 54. a recycling bin; 61. an air bag; 62. an air tube; 63. a cylinder; 64. a piston plate; 65. a piston rod; 66. pushing the plate; 67. an elastic cord; 68. a guide plate; 69. a blocking plate; 7. a limit sealing plate; 8. an elastic sheet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example one

Referring to fig. 1-5, a voice coil motor with gravity compensation includes a voice coil motor body 1; a stator supporting frame 11 is arranged inside the voice coil motor body 1; the inner side wall of the stator supporting frame 11 is fixedly connected with a coil framework 12; the end part of the coil framework 12 is sleeved with a coil body 13; the end part of the coil body 13 is provided with a coil protective sleeve 14; the side end of the coil protective sleeve 14 is provided with rotor outer ring magnetic steel 15; a stator inner ring magnetic steel 16 is arranged inside the stator supporting frame 11; the end part of the stator supporting frame 11 is provided with stator outer ring magnetic steel 17; the side end of the coil body 13 is provided with rotor inner ring magnetic steel 18 and is arranged inside the stator supporting frame 11; the top of the stator supporting frame 11 is fixedly connected with a rotor magnetic steel supporting frame 191 through a locking nut 19; the during operation, at the long-time during operation of voice coil motor body 1, can produce violent vibration, influence voice coil motor body 1's work efficiency, the work piece quality that leads to processing out appears reducing, through installing active cell magnet steel support frame 191 at stator outer lane magnet steel 17's tip, improve coil body 13's whole protective effect, internally mounted through at voice coil motor body 1 has coil body 13, improve voice coil motor body 1's whole steadiness, avoid voice coil motor body 1 at the during operation, can produce the problem of violent vibration, it is equipped with coil protective sheath 14 to overlap through the tip at coil body 13, come to play the effect of protection to coil body 13, avoid coil body 13 to appear the problem of damage.

The bottom of the voice coil motor body 1 is fixedly connected with an electric push rod 21; a clamping block 26 is fixedly connected to the bottom of the electric push rod 21; a lock groove 27 is formed in the fixture block 26; the bottom of the voice coil motor body 1 is provided with a base 2; a clamping groove 22 is formed in the base 2; a cavity 23 is formed in the base 2; a locking block 24 is connected inside the cavity 23 in a sliding manner; a first spring 25 is fixedly connected to the side end of the locking block 24, and the other end of the first spring 25 is fixedly connected to the inner side wall of the cavity 23; when the voice coil motor works, when the voice coil motor body 1 is used, because the height of the voice coil motor body 1 is limited, the voice coil motor body 1 is caused to be processed, because the height cannot be adjusted, the part processing is caused to be processed, the deviation is easy to occur, the processing efficiency of the voice coil motor body 1 is influenced, the base 2 is arranged at the bottom of the voice coil motor body 1, the electric push rod 21 is fixedly connected to the bottom of the voice coil motor body 1, then the electric push rod 21 is placed in the clamping groove 22, the electric push rod 21 drives the clamping block 26 to slide downwards on the inner side wall of the clamping groove 22, the clamping block 26 extrudes the locking block 24, the locking block 24 is stressed to stretch into the cavity 23 to extrude the first spring 25 to generate elastic force, when the locking groove 27 is aligned with the cavity 23, the first spring 25 generates elastic force to push the locking block 24 to be inserted into the inside of the locking groove 27 to be clamped and fixed, when the height of the voice coil motor body 1 needs to be adjusted, the voice coil motor body 1 can be lifted by opening the electric push rod 21, the voice coil motor body 1 corresponds to the workpiece, the processing efficiency of the voice coil motor body 1 is improved.

The inner side wall of the clamping groove 22 is connected with a supporting plate 35 in a sliding manner; the bottom of the supporting plate 35 is fixedly connected with a second spring 34, and the other end of the second spring 34 is fixedly connected to the inner side wall of the clamping groove 22; in operation, when the clamping block 26 slides towards the inside of the clamping groove 22, the supporting plate 35 is pressed to slide downwards, the supporting plate 35 presses the second spring 34 to stretch downwards to generate elastic force, and when the locking block 24 is clamped in the inside of the locking groove 27, the second spring 34 generates elastic force to push the supporting plate 35 to slide upwards. Make backup pad 35 promote fixture block 26, fixture block 26 receives power for the inside of the joint at locked groove 27 that locking piece 24 can be more firm improves locking piece 24's firm effect.

A slide hole 31 is formed in the base 2; a pull rope 32 is fixedly connected to the side end of the locking block 24, and the pull rope 32 is connected to the inside of the sliding hole 31 in a sliding manner; a pull ring 33 is fixedly connected to the top of the pull rope 32; during operation, when damage appears in voice coil motor body 1, through pulling pull ring 33 for pull ring 33 drives stay cord 32 upwards to slide, and stay cord 32 pulling locking piece 24 stretches out and draws back to the inside of cavity 23, then locking piece 24 follows the inside roll-off of locked groove 27, makes second spring 34 produce elasticity and promotes fixture block 26 upwards to slide, then takes out fixture block 26, is convenient for overhaul and change voice coil motor body 1.

The two ends of the base 2 are fixedly connected with water tanks 51; a recovery box 54 is arranged at the top of the base 2; a water suction pump 52 is fixedly connected to the inner side wall of the water tank 51; the end part of the water pump 52 is fixedly connected with a cooling pipe 53, the end part of the cooling pipe 53 is wound on the surface of the voice coil motor body 1, and the other end of the cooling pipe is fixedly connected with the side end of the recovery box 54; a switch unit is arranged inside the cooling pipe 53; the during operation, voice coil motor body 1 is at long-time during operation, the surface can produce the unable effluvium of a large amount of heats, influence voice coil motor body 1's work efficiency, when fixture block 26 slides down, the extrusion switch unit, make the inside switch unit of cooling tube 53 open, then the inside water of water tank 51 is extracted through suction pump 52, then circulate through cooling tube 53, make cooling tube 53 circulate on voice coil motor body 1's surface, carry out the heat absorption cooling, improve voice coil motor body 1's radiating effect, when the water after the heat absorption circulates to collection box 54 inside through cooling tube 53, carry out recycle.

The switch unit includes an airbag 61; an air bag 61 is fixedly connected to the inner side wall of the clamping groove 22; the top of the base 2 is fixedly connected with an air cylinder 63; an air pipe 62 is communicated with the end part of the rodless cavity of the air cylinder 63 and the side end of the air bag 61; a piston plate 64 is connected to the inner side wall of the cylinder 63 in a sliding manner; a piston rod 65 is fixedly connected to the side end of the piston plate 64; a push plate 66 is fixedly connected to the side end of the piston rod 65; a blocking plate 69 is slidably connected to the inside of the cooling pipe 53; a guide plate 68 is fixedly connected to the side end of the blocking plate 69; the end parts of the guide plate 68 and the push plate 66 are fixedly connected with an elastic rope 67; during operation, when the fixture block 26 slides downwards, the air bag 61 is squeezed, so that gas inside the air bag 61 flows into the rodless cavity of the air cylinder 63 through the air pipe 62, so that air pressure inside the rodless cavity of the air cylinder 63 becomes high, then the piston plate 64 is pushed to slide towards the side end, the piston plate 64 is pushed to push the piston rod 65 to slide towards the side end, the piston rod 65 pushes the push plate 66 to slide towards the side end, the push plate 66 pulls the elastic rope 67 in the sliding process, the guide plate 68 is pulled by the elastic rope 67, the guide plate 68 is forced to pull the blocking plate 69 to slide towards the side end, so that the cooling pipe 53 is opened, then water inside the water tank 51 is sucked through the air pipe 62 to flow, and heat dissipation is facilitated for the voice coil motor body 1.

A limit sealing plate 7 is fixedly connected to the side end of the blocking plate 69, and the end part of the limit sealing plate 7 is matched with the inner side wall of the cooling pipe 53; the end of the cooling pipe 53 is S-shaped; the end part of the locking block 24 is in a half arc shape; during operation, through installing limiting sealing plate 7, when limiting sealing plate 7 moves to the side along with plugboard 69 for limiting sealing plate 7 joint seals on the inside wall of cooling tube 53 spacingly, avoids cooling tube 53 the problem of leaking to appear.

Example two

Referring to fig. 6, in the first comparative example, as another embodiment of the present invention, the two sides of the blocking plate 69 are fixedly connected with the elastic pieces 8, and the other ends of the elastic pieces 8 are fixedly connected to the inner side wall of the cooling pipe 53; the during operation, after voice coil motor body 1 finishes working, through taking out fixture block 26, then gasbag 61 bleeds for push pedal 66 resets, and then the elasticity that jam plate 69 produced through shell fragment 8 resets, blocks up the use of being convenient for next time in cooling tube 53 again, and when electric putter 21 was taken out, through dismantling collection box 54, take out voice coil motor body 1 from the winding of cooling tube 53, be convenient for change and overhaul voice coil motor body 1.

The working principle is that when the voice coil motor body 1 works for a long time, severe vibration can be generated, the working efficiency of the voice coil motor body 1 is affected, and the quality of a processed workpiece is reduced, the overall protection effect of the coil body 13 is improved by installing the rotor magnetic steel support frame 191 at the end part of the stator outer ring magnetic steel 17, the overall stability of the voice coil motor body 1 is improved by installing the coil body 13 in the voice coil motor body 1, the problem that the voice coil motor body 1 can vibrate violently when working is avoided, the coil protective sleeve 14 is sleeved at the end part of the coil body 13 to protect the coil body 13, and the problem that the coil body 13 is damaged is avoided; when the voice coil motor body 1 is used, because the height of the voice coil motor body 1 is limited, when the voice coil motor body 1 is machined, because the height cannot be adjusted, when parts are machined, deviation is easy to occur, and machining efficiency of the voice coil motor body 1 is affected, the base 2 is arranged at the bottom of the voice coil motor body 1, the electric push rod 21 is fixedly connected to the bottom of the voice coil motor body 1, then the electric push rod 21 is placed inside the clamping groove 22, the electric push rod 21 drives the clamping block 26 to slide downwards on the inner side wall of the clamping groove 22, so that the clamping block 26 extrudes the locking block 24, the locking block 24 is stretched into the cavity 23 by force to extrude the first spring 25 to generate elastic force, when the locking groove 27 is aligned with the cavity 23, the first spring 25 generates elastic force to push the locking block 24 to be inserted into the inside of the locking groove 27 for clamping and fixing, when the height of the voice coil motor body 1 needs to be adjusted, the voice coil motor body 1 can be lifted by opening the electric push rod 21, and corresponds to a workpiece, so that machining efficiency of the voice coil motor body 1 is improved, and overall stability of the voice coil motor body 1 is improved; when the latch 26 slides towards the inside of the latch slot 22, the supporting plate 35 is pressed to slide downwards, the supporting plate 35 presses the second spring 34 to stretch downwards to generate an elastic force, and when the latch 24 is latched in the inside of the latch slot 27, the second spring 34 generates an elastic force to push the supporting plate 35 to slide upwards. The supporting plate 35 pushes the fixture block 26, and the fixture block 26 is forced, so that the locking block 24 can be clamped in the locking groove 27 more stably, and the stabilizing effect of the locking block 24 is improved; when the voice coil motor body 1 is damaged, the pull ring 33 is pulled to enable the pull ring 33 to drive the pull rope 32 to slide upwards, the pull rope 32 pulls the locking block 24 to stretch into the cavity 23, then the locking block 24 slides out of the locking groove 27, so that the second spring 34 generates elastic force to push the fixture block 26 to slide upwards, then the fixture block 26 is taken out, and the voice coil motor body 1 is convenient to overhaul and replace; when the voice coil motor body 1 works for a long time, a large amount of heat generated on the surface cannot be dissipated to influence the working efficiency of the voice coil motor body 1, when the fixture block 26 slides downwards, the switch unit is pressed to open the switch unit in the cooling pipe 53, then water in the water tank 51 is pumped by the water suction pump 52 and circulates through the cooling pipe 53, so that the cooling pipe 53 circulates on the surface of the voice coil motor body 1 to absorb heat and cool, the heat dissipation effect of the voice coil motor body 1 is improved, and when the absorbed water circulates to the interior of the recycling tank 54 through the cooling pipe 53, the absorbed water is recycled; when the fixture block 26 slides downwards, the air bag 61 is squeezed, so that air in the air bag 61 flows into the rodless cavity of the air cylinder 63 through the air pipe 62, air pressure in the rodless cavity of the air cylinder 63 becomes high, then the piston plate 64 is pushed to slide towards the side end, the piston plate 64 pushes the piston rod 65 to slide towards the side end, the piston rod 65 pushes the push plate 66 to slide towards the side end, the push plate 66 pulls the elastic rope 67 in the sliding process, the elastic rope 67 pulls the guide plate 68, the guide plate 68 is forced to pull the blocking plate 69 to slide towards the side end, so that the cooling pipe 53 is opened, then water in the water tank 51 is sucked through the air pipe 62 to flow, and the heat dissipation of the voice coil motor body 1 is facilitated; through installing limit sealing plate 7, when limit sealing plate 7 followed jam plate 69 and moved to the side for limit sealing plate 7 joint is sealed spacing on the inside wall of cooling tube 53, avoids cooling tube 53 the problem that leaks to appear.

In the description of the present specification, reference to the description of "one embodiment," "an example," "a specific example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and all such changes and modifications fall within the scope of the present invention as claimed.

Claims

1. The utility model provides a take gravity compensation's voice coil motor which characterized in that: comprises a voice coil motor body (1); a stator supporting frame (11) is arranged inside the voice coil motor body (1); the inner side wall of the stator supporting frame (11) is fixedly connected with a coil framework (12); the end part of the coil framework (12) is sleeved with a coil body (13); a coil protective sleeve (14) is arranged at the end part of the coil body (13); a rotor outer ring magnetic steel (15) is arranged at the side end of the coil protective sleeve (14); stator inner ring magnetic steel (16) is arranged inside the stator supporting frame (11); the end part of the stator supporting frame (11) is provided with stator outer ring magnetic steel (17); the side end of the coil body (13) is provided with rotor inner ring magnetic steel (18) and is arranged inside the stator supporting frame (11); the top of the stator supporting frame (11) is fixedly connected with a rotor magnetic steel supporting frame (191) through a locking nut (19).

2. A voice coil motor with gravity compensation as claimed in claim 1, wherein: the bottom of the voice coil motor body (1) is fixedly connected with an electric push rod (21); a clamping block (26) is fixedly connected to the bottom of the electric push rod (21); a locking groove (27) is formed in the fixture block (26); the bottom of the voice coil motor body (1) is provided with a base (2); a clamping groove (22) is formed in the base (2); a cavity (23) is formed in the base (2); a locking block (24) is connected inside the cavity (23) in a sliding way; the side end of the locking block (24) is fixedly connected with a first spring (25), and the other end of the first spring (25) is fixedly connected to the inner side wall of the cavity (23).

3. A voice coil motor with gravity compensation as claimed in claim 2, wherein: the inner side wall of the clamping groove (22) is connected with a supporting plate (35) in a sliding manner; the bottom rigid coupling of backup pad (35) has second spring (34), and the other end rigid coupling of second spring (34) is on the inside wall of draw-in groove (22).

4. A voice coil motor with gravity compensation as claimed in claim 3, wherein: a sliding hole (31) is formed in the base (2); a pull rope (32) is fixedly connected to the side end of the locking block (24), and the pull rope (32) is connected to the inside of the sliding hole (31) in a sliding mode; and a pull ring (33) is fixedly connected to the top of the pull rope (32).

5. A voice coil motor with gravity compensation as claimed in claim 4, wherein: two ends of the base (2) are fixedly connected with water tanks (51); a recovery box (54) is arranged at the top of the base (2); a water suction pump (52) is fixedly connected to the inner side wall of the water tank (51); a cooling pipe (53) is fixedly connected to the end part of the water pump (52), the end part of the cooling pipe (53) is wound on the surface of the voice coil motor body (1), and the other end of the cooling pipe is fixedly connected to the side end of the recovery box (54); a switch unit is arranged inside the cooling pipe (53).

6. A voice coil motor with gravity compensation as claimed in claim 5, wherein: the switch unit includes an airbag (61); an air bag (61) is fixedly connected to the inner side wall of the clamping groove (22); the top of the base (2) is fixedly connected with an air cylinder (63); an air pipe (62) is communicated with the end part of the rodless cavity of the air cylinder (63) and the side end of the air bag (61); the inner side wall of the cylinder (63) is connected with a piston plate (64) in a sliding manner; a piston rod (65) is fixedly connected to the side end of the piston plate (64); a push plate (66) is fixedly connected to the side end of the piston rod (65); a blocking plate (69) is connected inside the cooling pipe (53) in a sliding manner; a guide plate (68) is fixedly connected to the side end of the blocking plate (69); the end parts of the guide plate (68) and the push plate (66) are fixedly connected with elastic ropes (67).

7. A voice coil motor with gravity compensation as claimed in claim 6, wherein: the side end of the blocking plate (69) is fixedly connected with a limiting sealing plate (7), and the end part of the limiting sealing plate (7) is matched with the inner side wall of the cooling pipe (53).

8. A voice coil motor with gravity compensation as claimed in claim 7, wherein: the end of the cooling pipe (53) is S-shaped; the end part of the locking block (24) is in a half arc shape.