A voice coil motor with linear bearing guide

By designing lubrication systems for storage barrels, circulation pipes and fan-shaped pipes in voice coil motors, as well as cleaning systems for series air frames and fans, the problems of linear bearing dryness and dust accumulation are solved, and the moving quality and service life of the motor are improved.

CN119298595BActive Publication Date: 2025-03-18KUNSHAN TONGMAO ELECTRONICS CO LTD
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Patent Information

Application Number
CN202411501269.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-10-25
Publication Date
2025-03-18
Estimated Expiration
2044-10-25

AI Technical Summary

Technical Problem

After a long time of use, the existing voice coil motor with linear bearing guide is prone to dryness in the moving position of linear bearings, which affects the moving quality of the motor, and is difficult to perform regular cleaning and lubrication.

Method used

A voice coil motor with a storage barrel, a circulation pipe and a fan tube was designed. The push plate and circular plate are driven by an electric push rod to squeeze the lubricating oil into the linear bearing position, and dust is cleaned through a combination of a series air frame and a fan to expand the cleaning area.

Benefits of technology

The linear bearing of the voice coil motor is realized regularly, which prevents dryness, improves the moving quality and service life of the motor, and improves the reliability of the motor in dust environment through automatic dust cleaning function.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to the field of voice coil motors, and in particular to a voice coil motor with a linear bearing guide. The motor comprises a bracket and a motor body fixedly mounted on the bracket, wherein two linear bearings are fixedly connected to the bottom of the motor body, and the two linear bearings are slidably connected to the bottom of the bracket, and a semicircular plate is fixedly connected to the front and rear sides of the right bottom of the motor body, and a storage barrel is fixedly connected to each semicircular plate; the present invention facilitates timely application of lubricating oil to the position where the bearing moves when the voice coil motor uses the linear bearing to move linearly, thereby preventing the linear bearing from being dried up due to long-term use, which affects the moving quality of the voice coil motor.
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Description

Technical Field

[0001] The invention relates to the field of voice coil motors, and in particular to a voice coil motor with a linear bearing guide. Background Art

[0002] A voice coil motor with a linear bearing guide is a type of motor that is mainly used for precise linear motion control. Voice coil motors use electromagnetic principles to achieve linear displacement through the movement of the voice coil and are widely used in automation, robotics, medical equipment, laser cutting and other fields. In the prior art, voice coil motors with linear bearing guides often ignore the steps of automated regular lubrication and maintenance of the position where the linear bearing moves during use, which can cause the linear bearing to become dry at the sliding position after long-term use, affecting the movement of the linear bearing. Therefore, in order to avoid the above technical problems, this application is proposed. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a voice coil motor with a linear bearing guide.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is: a voice coil motor with a linear bearing guide, comprising a bracket and a motor body fixedly installed on the bracket, the bottom of the motor body is fixedly connected to two linear bearings, the two linear bearings are slidably connected to the bottom of the bracket, the front and rear sides of the right bottom of the motor body are respectively fixedly connected to a semicircular plate, each semicircular plate is respectively fixedly connected to a storage barrel, the left side of each storage barrel is respectively fixed and connected to a circulation pipe, the bottom of each circulation pipe is respectively fixed and connected to a fan-shaped pipe, and the bottom of the fan-shaped pipe is evenly fixed and connected to multiple short pipes along the circumferential direction.

[0005] Preferably, a feed pipe is fixed and connected to the left side of each storage barrel, and a cover is buckled on each feed pipe.

[0006] Preferably, each of the storage barrels is respectively provided with a through long hole, and a push plate is slidably connected in each of the through long hole, and a circular plate is fixedly connected to the bottom of each push plate, and each circular plate slides in each of the storage barrels, and a movable end of an electric push rod Ⅰ is fixedly connected to the right side of each push plate, and the fixed ends of the two electric push rods Ⅰ are respectively fixedly connected to the front and rear sides of the right bottom of the motor body.

[0007] Preferably, the left side of the bracket is fixedly connected to a rotating seat, the left top of the bracket is fixedly connected to a semicircular limiting frame, the rotating seat is rotatably connected to a rotating frame, the right side of the rotating frame is fixedly connected to a driving plate, the top of the driving plate is slidably connected to the semicircular limiting frame, the top right side of the driving plate is fixedly connected to a right-angle frame extending upward, the right side of the right-angle frame is fixedly connected to a sliding rod, the sliding rod is slidably connected to a transverse frame, the bottom of the transverse frame is slidably connected to a lifting frame, the left side of the lifting frame is fixedly connected to an arc frame, two groove seats are slidably connected to the arc frame, the left sides of the two groove seats are fixedly connected to an arc rack, the bottom of the arc rack is fixedly connected to a support plate, and the bottom of the support plate is fixedly connected to an air string frame.

[0008] Preferably, the movable end of the electric push rod II is fixedly connected to the right side of the lifting frame, the fixed end of the electric push rod II is fixedly connected to the upper side of the transverse frame, and the top of the transverse frame is fixedly connected to a handle.

[0009] Preferably, the left side of the lifting frame is rotatably connected to a rotating rod, a gear is fixedly connected to the rotating rod, a motor is fixedly installed on the left side of the rotating rod, the motor is fixedly connected to the left end of the lifting frame, a plurality of teeth are provided on the upper side of the arc-shaped rack, and the plurality of teeth on the arc-shaped rack are meshed and transmission-connected with the gear.

[0010] Preferably, a side baffle is fixedly connected to the front and rear sides of the arc-shaped rack respectively.

[0011] Preferably, a plurality of small holes are evenly arranged on the bottom of the air string frame along the circumferential direction.

[0012] Preferably, a long frame is fixed and connected to the upper side of the right side of the air string frame, a right-angle tube is fixed and connected to the upper side of the long frame, the left side of the right-angle tube is fixed and connected to the fan, and the fan is fixedly connected to the support plate.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] When the voice coil motor uses a linear bearing guide, it is convenient to apply lubricating oil to the position where the bearing moves at any time when the voice coil motor uses the linear bearing to move linearly, so as to prevent the linear bearing from drying out due to long-term use, which affects the moving quality of the voice coil motor.

[0015] It is convenient to regularly clean the moving gap of the voice coil motor to prevent dust from entering the interior of the voice coil motor when the voice coil motor is used in dusty places;

[0016] The circular motion range of the support plate and the air string frame located below the support plate is enlarged, so that the automatic cleaning area inside the gap of the voice coil motor is increased, thereby improving the service life of the voice coil motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the partial structure of a bracket of a voice coil motor with a linear bearing guide according to the present invention;

[0018] Figure 2 It is a schematic diagram of the partial structure of a motor body of a voice coil motor with a linear bearing guide according to the present invention;

[0019] Figure 3 It is a schematic diagram of the partial structure of a storage barrel of a voice coil motor with a linear bearing guide according to the present invention;

[0020] Figure 4 It is a schematic diagram of the partial structure of a circular plate of a voice coil motor with a linear bearing guide according to the present invention;

[0021] Figure 5 It is a partial structural schematic diagram of a semicircular limit frame of a voice coil motor with a linear bearing guide according to the present invention;

[0022] Figure 6 For the present invention Figure 5 A is a schematic diagram of the enlarged local structure;

[0023] Figure 7 It is a schematic diagram of the partial structure of a driving plate of a voice coil motor with a linear bearing guide according to the present invention;

[0024] Figure 8 It is a schematic diagram of the partial structure of the air string frame of a voice coil motor with a linear bearing guide according to the present invention;

[0025] Fig. 9 It is a schematic diagram of the partial structure of a support plate of a voice coil motor with a linear bearing guide according to the present invention;

[0026] Fig.10 It is a schematic diagram of the first part of the structure of a voice coil motor with a linear bearing guide according to the present invention;

[0027] Fig.11 It is a schematic diagram of the partial structure of the second part of a voice coil motor with a linear bearing guide according to the present invention;

[0028] Fig.12 It is a schematic diagram of the partial structure of the air string frame of a voice coil motor with a linear bearing guide according to the present invention;

[0029] Fig.13 For the present invention Figure 5 A magnified schematic diagram of the local structure of B.

[0030] 1. Bracket; 2. Motor body; 3. Linear bearing; 4. Semicircular plate; 5. Rotating seat; 6. Storage barrel; 7. Feeding pipe; 8. Cover; 9. Circulation pipe; 10. Fan-shaped pipe; 11. Short pipe; 12. Push plate; 13. Round plate; 14. Electric push rod I; 15. Rotating frame; 16. Driving plate; 17. Right-angle frame; 18. Sliding rod; 19. Transverse frame; 20. Lifting frame; 21. Arc frame; 22. Electric push rod II; 23. Semicircular limit frame; 24. Rotating rod; 25. Gear; 26. Motor; 27. Arc rack; 28. Groove seat; 29. ​​Side baffle; 30. Support plate; 31. Air string frame; 32. Long strip frame; 33. Right-angle pipe; 34. Fan; 35. Small hole. DETAILED DESCRIPTION

[0031] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0032] like Figure 1-Figure 13 A voice coil motor with a linear bearing guide is shown, comprising a bracket 1 and a motor body 2 fixedly mounted on the bracket 1, characterized in that: two linear bearings 3 are fixedly connected to the bottom of the motor body 2, the two linear bearings 3 are slidably connected to the bottom of the bracket 1, and a semicircular plate 4 is fixedly connected to the front and rear sides of the right bottom of the motor body 2, and a storage barrel 6 is fixedly connected to each semicircular plate 4, and a flow tube 9 is fixedly connected and connected to the left side of each storage barrel 6, and a fan-shaped tube 10 is fixedly connected and connected to the bottom of each flow tube 9, and a plurality of short tubes 11 are evenly fixed and connected to the bottom of the fan-shaped tube 10 along the circumferential direction.

[0033] like Figure 1-Figure 13 As shown, a feed pipe 7 is fixed and connected to the left side of each storage barrel 6, and a cover 8 is buckled on each feed pipe 7.

[0034] like Figure 1-Figure 13 As shown, each of the material storage barrels 6 is respectively provided with a through long hole, and a push plate 12 is slidably connected in each of the through long holes, and a circular plate 13 is fixedly connected to the bottom of each push plate 12. Each circular plate 13 slides in each of the material storage barrels 6, and a movable end of an electric push rod Ⅰ14 is fixedly connected to the right side of each push plate 12, and the fixed ends of the two electric push rods Ⅰ14 are respectively fixedly connected to the front and rear sides of the right bottom of the motor body 2.

[0035] like Figure 1-Figure 13As shown, a rotating seat 5 is fixedly connected to the left side of the bracket 1, a semicircular limiting frame 23 is fixedly connected to the left top of the bracket 1, a rotating frame 15 is rotatably connected to the rotating seat 5, a driving plate 16 is fixedly connected to the right side of the rotating frame 15, the top of the driving plate 16 is slidably connected to the semicircular limiting frame 23, a right angle frame 17 extending upward is fixedly connected to the top right side of the driving plate 16, a sliding rod 18 is fixedly connected to the right side of the right angle frame 17, a transverse frame 19 is slidably connected to the sliding rod 18, a lifting frame 20 is slidably connected to the bottom of the transverse frame 19, an arc frame 21 is fixedly connected to the left side of the lifting frame 20, two groove seats 28 are slidably connected to the arc frame 21, the left sides of the two groove seats 28 are fixedly connected to the arc rack 27, the bottom of the arc rack 27 is fixedly connected to a support plate 30, and the bottom of the support plate 30 is fixedly connected to an air string frame 31.

[0036] like Figure 1-Figure 13 As shown, the movable end of the electric push rod II 22 is fixedly connected to the right side of the lifting frame 20, the fixed end of the electric push rod II 22 is fixedly connected to the upper side of the transverse frame 19, and the top of the transverse frame 19 is fixedly connected with a handle.

[0037] like Figure 1-Figure 13 As shown, the left side of the lifting frame 20 is rotatably connected to a rotating rod 24, and a gear 25 is fixedly connected to the rotating rod 24. A motor 26 is fixedly installed on the left side of the rotating rod 24, and the motor 26 is fixedly connected to the left end of the lifting frame 20. A plurality of teeth are provided on the upper side of the arc-shaped rack 27, and the plurality of teeth on the arc-shaped rack 27 are meshed and transmission-connected with the gear 25.

[0038] like Figure 1-Figure 13 As shown, a side baffle 29 is fixedly connected to the front and rear sides of the arc-shaped rack 27 respectively.

[0039] like Figure 1-Figure 13 As shown, a plurality of small holes 35 are evenly arranged at the bottom of the air string frame 31 along the circumferential direction.

[0040] like Figure 1-Figure 13 As shown, a long frame 32 is fixed and connected to the upper side of the right side of the air string frame 31, a right-angle tube 33 is fixed and connected to the upper side of the long frame 32, and the left side of the right-angle tube 33 is fixed and connected to the fan 34, and the fan 34 is fixedly connected to the support plate 30.

[0041] When the voice coil motor is guided by a linear bearing, in order to facilitate timely application of lubricating oil to the position where the bearing moves when the voice coil motor uses the linear bearing to move linearly, thereby preventing the linear bearing from drying out due to long-term use and affecting the moving quality of the voice coil motor, when in use, on the bracket 1 where the motor body 2 is installed, the active end of the motor body 2 relies on two linear bearings 3 to perform horizontal linear guided movement on the bracket 1. After driving the motor body 2 for a period of time, the electric push rods Ⅰ14 on both sides are driven, so that the push plate 12 on the active end of each electric push rod Ⅰ14 is driven to move horizontally, synchronously The circular plate 13 located below the push plate 12 is used to squeeze the lubricating oil pre-stored in each storage barrel 6 into each circulation tube 9 by using each circular plate 13. After that, the lubricating oil flows into the fan-shaped tube 10 through each circulation tube 9. Finally, the lubricating oil flows out to the position where the two linear bearings 3 slide through a plurality of short tubes 11 on each fan-shaped tube 10. Therefore, when the voice coil motor uses the linear bearing guide, it is convenient to apply lubricating oil to the position where the bearing moves when the voice coil motor uses the linear bearing to move linearly at any time, thereby preventing the moving position from becoming dry due to long-term use of the linear bearing, which affects the moving quality of the voice coil motor.

[0042] When injecting lubricating oil into each storage barrel 6, unscrew the cover 8 on the feed pipe 7, and then inject the lubricating oil through the feed pipe 7 manually to store the lubricating oil in each storage barrel 6 in advance;

[0043] In order to facilitate regular cleaning of the moving gap of the voice coil motor and avoid dust from entering the interior of the voice coil motor when the voice coil motor is used in some dusty places, when in use, after the voice coil motor has been used for a period of time, the voice coil motor is driven to extend, and then the handle located above the transverse frame 19 is grasped, so that the transverse frame 19 is moved by the groove on the sliding rod 18 and moves to the extension of the motor body 2, and then the electric push rod Ⅱ 22 is driven to make the lifting frame 20 located on the active end of the electric push rod Ⅱ 22 move downward, and the arc frame 21 on the left side of the lifting frame 20 moves downward synchronously, and the stringing frame 31 on the arc frame 21 located below the arc rack 27 is aligned with the horizontal position of the gap of the voice coil motor, and the electric push rod Ⅱ 22 is used to clean the moving gap of the voice coil motor. The connected control enables the air-string frame 31 to be more accurately aligned with the horizontal position of the gap of the voice coil motor, and then the operator operates the handle located above the transverse frame 19 to move horizontally, so that the air-string frame 31 extends into the gap. At this time, the fan 34 is driven to supply air, and the air is diffused through the right-angle tube 33 and the long frame 32 and finally through the multiple small holes 35 on the air-string frame 31 to clean the dust at the gap of the voice coil motor and blow out the dust stuck inside. The size of the air-string frame 31 depends on the actual situation. The drawings in this application are only for reference, which is convenient for regular cleaning of the moving gap of the voice coil motor to avoid dust from entering the inside of the voice coil motor when the voice coil motor is used in some dusty places.

[0044] Furthermore, in order to facilitate the expansion of the area of ​​the air-string frame 31 for cleaning the inside of the voice coil motor gap, when in use, the staff can use the rotating frame 15 to rotate on the rotating seat 5, and the top of the synchronous driving plate 16 moves in a circular direction through the limit of the semicircular limit frame 23, and then the sliding rod 18 drives the transverse frame 19 to move in a circular direction, and the air-string frame 31 located below the transverse frame 19 synchronously moves in a circular direction, so that the upper half of the voice coil motor gap can be cleaned. At this time, in the air-string frame After 31 moves to one side, the driving motor 26 causes the rotating rod 24 to rotate. When the rotating rod 24 rotates, the gear 25 located in the middle of the rotating rod 24 rotates, so that the arc-shaped rack 27 meshing with the gear 25 and connected to the arc-shaped frame 21 makes further circular motion on the arc-shaped frame 21 by means of two groove seats 28, thereby further expanding the circular motion range of the support plate 30 and the air string frame 31 located under the support plate 30, so that the automatic cleaning area inside the gap of the voice coil motor is increased, thereby improving the service life of the voice coil motor.

[0045] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A voice coil motor with a linear bearing guide, comprising a bracket (1) and a motor body (2) fixedly mounted on the bracket (1), characterized in that: The bottom of the motor body (2) is fixedly connected to two linear bearings (3), and the two linear bearings (3) are slidably connected to the bottom of the bracket (1). The front and rear sides of the right bottom of the motor body (2) are respectively fixedly connected to a semicircular plate (4), and each semicircular plate (4) is respectively fixedly connected to a storage barrel (6). The left side of each storage barrel (6) is respectively fixed to and connected with a circulation pipe (9), and the bottom of each circulation pipe (9) is respectively fixed to and connected with a fan-shaped pipe (10), and the bottom of the fan-shaped pipe (10) is evenly fixed and connected with a plurality of short pipes (11) along the circumferential direction, and lubricating oil is provided in the storage barrel (6); A feed pipe (7) is fixed and connected to the left side of each storage barrel (6), and a cover (8) is buckled on each feed pipe (7); Each of the material storage barrels (6) is provided with a through long hole, each of which is slidably connected to a push plate (12), the bottom of each push plate (12) is fixedly connected to a circular plate (13), each circular plate (13) slides in each of the material storage barrels (6), the right side of each push plate (12) is fixedly connected to a movable end of an electric push rod I (14), and the fixed ends of the two electric push rods I (14) are fixedly connected to the front and rear sides of the right bottom of the motor body (2).

2. A voice coil motor with linear bearing guide according to claim 1, characterized in that: The left side of the bracket (1) is fixedly connected to a rotating seat (5), the top of the left side of the bracket (1) is fixedly connected to a semicircular limiting frame (23), the rotating seat (5) is rotatably connected to a rotating frame (15), the right side of the rotating frame (15) is fixedly connected to a driving plate (16), the top of the driving plate (16) is slidably connected to the semicircular limiting frame (23), the top right side of the driving plate (16) is fixedly connected to a right angle frame (17) extending upward, and the right side of the right angle frame (17) is fixedly connected to a sliding A rod (18) is slidably connected to a transverse frame (19) on the sliding rod (18), a lifting frame (20) is slidably connected to the bottom of the transverse frame (19), an arc frame (21) is fixedly connected to the left side of the lifting frame (20), two groove seats (28) are slidably connected to the arc frame (21), the left sides of the two groove seats (28) are fixedly connected to the arc rack (27), the bottom of the arc rack (27) is fixedly connected to a support plate (30), and the bottom of the support plate (30) is fixedly connected to an air string frame (31).

3. A voice coil motor with linear bearing guide according to claim 2, characterized in that: The right side of the lifting frame (20) is fixedly connected to the movable end of an electric push rod II (22), the fixed end of the electric push rod II (22) is fixedly connected to the upper side of the transverse frame (19), and the top of the transverse frame (19) is fixedly connected to a handle.

4. A voice coil motor with linear bearing guide according to claim 3, characterized in that: The left side of the lifting frame (20) is rotatably connected to a rotating rod (24), a gear (25) is fixedly connected to the rotating rod (24), a motor (26) is fixedly installed on the left side of the rotating rod (24), the motor (26) is fixedly connected to the left end of the lifting frame (20), a plurality of teeth are provided on the upper side of the arc-shaped rack (27), and the plurality of teeth on the arc-shaped rack (27) are meshed and transmission-connected with the gear (25).

5. A voice coil motor with linear bearing guide according to claim 4, characterized in that: A side baffle (29) is fixedly connected to the front and rear sides of the arc-shaped rack (27), respectively.

6. A voice coil motor with linear bearing guide according to claim 5, characterized in that: The bottom of the air string frame (31) is evenly provided with a plurality of small holes (35) along the circumferential direction.

7. A voice coil motor with linear bearing guide according to claim 6, characterized in that: A long frame (32) is fixed to and connected to the upper side of the right side of the air string frame (31); a right-angle tube (33) is fixed to and connected to the upper side of the long frame (32); the left side of the right-angle tube (33) is fixed to and connected to a fan (34); and the fan (34) is fixedly connected to the support plate (30).

Citation Information

Patent Citations

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    CN211530918U

  • Voice coil motor with linear bearing guidance

    CN221575123U