A tilting cylinder that can precisely control the tilting angle

Abstract

This application discloses a tilting cylinder capable of precisely controlling the tilting angle, belonging to the field of cylinders. The tilting cylinder includes a cylinder body, a support mounted on the cylinder body, and a tilting seat movably mounted on the support. A locking mechanism is provided on the support, comprising a rotating shaft rotatably inserted into the support via a circular hole and fixedly connected to the tilting seat, a worm gear fixedly mounted on the rotating shaft, a worm rotatably inserted into the support and meshing with the worm gear, and a driving component for driving the worm gear to rotate. Through the meshing transmission of the worm gear and worm, the power of the driving component can be converted into precise angle adjustment of the tilting seat. The high-precision characteristics of the worm gear transmission are utilized to achieve precise control of the tilting angle. Simultaneously, the worm gear transmission has a natural mechanical self-locking characteristic, which allows the tilting seat to be rigidly locked in position through a mechanical structure after adjustment to the target angle, preventing angle deviation due to factors such as air pressure fluctuations and significantly improving the positional stability of the tilting seat.

Description

Technical Field

[0001] This application relates to the field of cylinder technology, specifically a tilting cylinder that can precisely control the tilting angle. Background Technology

[0002] As a core actuator for realizing equipment tilting actions in the field of industrial automation, the tilting cylinder is widely used in machining, assembly and inspection and other scenarios. Its core performance requirements include tilting angle control accuracy, motion stability and load holding capability.

[0003] In existing technologies, pneumatic cylinder devices that achieve tilting actions through pneumatic drive are widely used. For example, Chinese utility model patent CN220168263U discloses a tilting cylinder that can precisely control the tilting angle. This solution effectively improves the airtightness of the cylinder through a multi-seal structure design including air inlet / outlet ports, guide rings, and sealing rings, ensuring a precise correspondence between the air volume and the piston plate lifting distance, thereby achieving precise control of the equipment tilting angle. At the same time, the setting of the guide and limit structure also improves the stability of the tilting process and avoids equipment shaking and deviation. However, its self-locking function mainly relies on gas pressure and lacks a rigid locking mechanism at the mechanical structure level. When the cylinder works for a long time or the system experiences air pressure fluctuations, achieving self-locking only by reducing gas leakage may cause the tilted angle to shift due to the drop in air pressure. Especially in working conditions that require maintaining a fixed tilting angle for a long time, it is difficult to ensure positional stability, thus affecting the accuracy of subsequent processing or inspection.

[0004] Therefore, this application provides a tilting cylinder that can precisely control the tilting angle to solve the above problems. Utility Model Content

[0005] This application provides a tilting cylinder that can precisely control the tilting angle, aiming to solve the problems mentioned in the background art, such as existing tilting cylinders relying on air pressure to maintain self-locking and lacking mechanical rigid locking, which cause the tilting angle to easily shift due to air pressure fluctuations and affect position stability.

[0006] To achieve the above objectives, this application provides the following technical solution: a tilting cylinder capable of precisely controlling the tilting angle, comprising a cylinder body, a support mounted on the cylinder body, and a tilting seat movably mounted on the support;

[0007] To ensure the stability of the tilting seat position: the support is equipped with a locking mechanism for locking the tilting seat angle. The locking mechanism includes a rotating shaft rotatably inserted into the support through a circular hole and fixedly connected to the tilting seat; a worm gear fixedly mounted on the rotating shaft; a worm rotatably inserted into the support and meshing with the worm gear; and a driving component for driving the worm gear to rotate. The driving component is connected to the output shaft of the cylinder body. Through the meshing transmission of the worm gear and worm, the power of the driving component can be converted into precise angle adjustment of the tilting seat. The high-precision characteristics of the worm gear transmission enable precise control of the tilting angle. At the same time, the worm gear transmission has a natural mechanical self-locking characteristic, which allows the tilting seat to be rigidly locked in position through a mechanical structure after it is adjusted to the target angle, avoiding angle deviation caused by factors such as air pressure fluctuations, and significantly improving the positional stability of the tilting seat.

[0008] Preferably, the driving component includes a rotating rod rotatably inserted into the support through a circular hole, a first gear fixedly mounted on the rotating rod, and a rack slidably disposed in the support through a vertical groove and meshing with the first gear, wherein the bottom of the rack is fixedly connected to the output shaft of the cylinder body.

[0009] Preferably, the driving component further includes second gears fixedly mounted on the worm and the rotating rod, respectively, and the two second gears mesh with each other. Through the meshing of the rack and the first gear, the linear reciprocating motion of the cylinder body output shaft is converted into the rotational motion of the rotating rod, which is then transmitted to the worm through the meshing of the second gears, forming a multi-stage transmission structure. This allows for amplification or reduction of the transmission ratio, enabling precise adjustment of the tilting angle of the tilting seat. Simultaneously, the rack and pinion transmission features high transmission efficiency and smooth movement, ensuring the accuracy and reliability of the angle adjustment process.

[0010] Preferably, the rotating shaft, worm gear, and rotating rod are all connected to the support via sealed bearings. Sealed bearings reduce rotational frictional resistance between the rotating shaft, worm gear, rotating rod, and support, ensuring flexible rotation of each transmission component and reducing energy loss. Simultaneously, the sealing structure of the bearings prevents external dust and impurities from entering the support, avoiding wear on transmission components and preventing internal liquid leakage, thus ensuring long-term stable operation of the mechanism.

[0011] Preferably, the end of the support away from the cylinder body has an oil injection hole communicating with its internal cavity. A sealing screen is threaded into the oil injection hole, and a sealing ring is provided on the sealing screen to seal the gap between the sealing screen and the oil injection hole. The oil injection hole allows the operator to periodically inject lubricating oil into the transmission components inside the support, reducing meshing friction and wear, and extending the service life of the mechanism; the sealing ring ensures the sealing of the oil injection hole in the non-lubricated state, preventing lubricating oil leakage and external dust intrusion.

[0012] Preferably, to ensure the stability of the support: the support is T-shaped, consisting of a horizontal plate and a vertical plate. The locking mechanism is located inside the horizontal plate of the support, and the driving component is located inside the vertical plate of the support. The T-shaped structure arranges the locking mechanism and the driving component separately in the horizontal and vertical plates, achieving functional zoning, making the structure compact and the force distribution reasonable. The horizontal plate provides a stable mounting base for the tilting seat and the locking mechanism, while the vertical plate connects to the cylinder body and bears the thrust of the driving component, distributing the overall force and improving the support's resistance to deformation and installation stability.

[0013] This application utilizes the meshing transmission of a worm gear and a worm to convert the power of the driving component into precise angle adjustment of the tilting seat. It leverages the high precision characteristics of worm gear transmission to achieve accurate control of the tilting angle. Simultaneously, the worm gear transmission has a natural mechanical self-locking characteristic, which allows the tilting seat to be rigidly locked in position through a mechanical structure after it has been adjusted to the target angle, preventing angle deviation caused by factors such as air pressure fluctuations and significantly improving the positional stability of the tilting seat.

[0014] This application allows operators to periodically inject lubricating oil into the transmission components inside the support through the oil injection hole, reducing meshing friction and wear, and extending the service life of the mechanism; the sealing ring ensures the sealing of the oil injection hole when not in an oil-filled state, preventing lubricating oil leakage and external dust intrusion.

[0015] This application uses a T-shaped structure to arrange the locking mechanism and the driving component in the horizontal and vertical plates respectively, achieving functional zoning, making the structure compact and the force distribution reasonable; the horizontal plate provides a stable mounting base for the flipping seat and the locking mechanism, while the vertical plate is connected to the cylinder body and bears the thrust of the driving component, dispersing the overall force and improving the support's resistance to deformation and installation stability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a tilting cylinder that can precisely control the tilting angle.

[0017] Figure 2 This is a schematic diagram of the locking mechanism inside the support.

[0018] In the picture:

[0019] 1. Cylinder body; 2. Support; 21. Oil injection hole; 22. Sealing screen; 23. Sealing ring; 3. Tilting seat; 4. Locking mechanism; 41. Rotating shaft; 42. Worm gear; 43. Worm; 44. Driving component; 441. Rotating rod; 442. First gear; 443. Rack; 444. Second gear. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0021] Example 1

[0022] This embodiment provides a tilting cylinder that can precisely control the tilting angle, such as... Figure 1-2 As shown, the tilting cylinder includes a cylinder body 1, a support 2 mounted on the cylinder body 1, and a tilting seat 3 movably mounted on the support 2. To ensure the stability of the tilting seat 3, a locking mechanism 4 for locking the tilting seat 3 angle is provided on the support 2. The locking mechanism 4 includes a rotating shaft 41 rotatably inserted into the support 2 through a round hole and fixedly connected to the tilting seat 3, a worm gear 42 fixedly mounted on the rotating shaft 41, a worm 43 rotatably inserted into the support 2 and meshing with the worm gear 42, and a driving member 44 for driving the worm 43 to rotate. The driving member 44 is connected to the output shaft of the cylinder body 1. Through the meshing transmission of worm gear 42 and worm 43, the power of drive component 44 can be converted into precise angle adjustment of tilting seat 3. The high-precision characteristics of the worm gear 42 and worm 43 transmission enable precise control of the tilting angle. Simultaneously, the worm gear 42 and worm 43 transmission possess inherent mechanical self-locking characteristics (when worm 43 is active and worm gear 42 is passive). After tilting seat 3 is adjusted to the target angle, the mechanical structure rigidly locks the position, preventing angle deviation due to factors such as air pressure fluctuations, significantly improving the positional stability of tilting seat 3. When the output shaft of cylinder body 1 moves, drive component 44 starts and drives worm 43 to rotate. Worm 43 drives worm gear 42 to rotate through meshing, and worm gear 42 drives the fixedly connected rotating shaft 41 to rotate, thereby causing tilting seat 3, fixed to rotating shaft 41, to rotate around the axis of rotating shaft 41. When the target angle is reached, drive component 44 stops, and the meshing tooth surfaces of worm gear 42 and worm 43 form a mechanical lock, preventing tilting seat 3 from rotating on its own, achieving rigid maintenance of the angle position.

[0023] The driving component 44 includes a rotating rod 441 rotatably inserted into the support 2 through a circular hole, a first gear 442 fixedly mounted on the rotating rod 441, and a rack 443 slidably disposed in the support 2 through a vertical groove and meshing with the first gear 442. The bottom of the rack 443 is fixedly connected to the output shaft of the cylinder body 1. The driving component 44 also includes a second gear 444 fixedly mounted on the worm gear 43 and the rotating rod 441 respectively, and the two second gears 444 mesh with each other. Through the meshing of the rack 443 and the first gear 442, the linear reciprocating motion of the output shaft of the cylinder body 1 is converted into the rotational motion of the rotating rod 441, and then transmitted to the worm gear 43 through the meshing of the second gears 444, forming a multi-stage transmission structure. The transmission ratio can be amplified or reduced to achieve fine adjustment of the tilting angle of the tilting seat 3. At the same time, the gear and rack 443 transmission has the characteristics of high transmission efficiency and smooth movement, which can ensure the accuracy and reliability of the angle adjustment process. When the output shaft of the cylinder body 1 moves upward or downward, it drives the rack 443, which is fixedly connected to it, to slide along the vertical groove of the support 2. The rack 443 drives the first gear 442 to rotate through meshing. The first gear 442 drives the coaxial rotating rod 441 to rotate. The second gear 444 on the rotating rod 441 rotates accordingly and meshes with the second gear 444 on the worm 43, thereby driving the worm 43 to rotate. Finally, the worm wheel 42 drives the rotating shaft 41 and the tilting seat 3 to rotate, completing the angle adjustment action.

[0024] The rotating shaft 41, worm gear 43, and rotating rod 441 are all connected to the support 2 via sealed bearings. The sealed bearings reduce the rotational frictional resistance between the rotating shaft 41, worm gear 43, rotating rod 441, and support 2, ensuring flexible rotation of each transmission component and reducing energy loss. Simultaneously, the sealing structure of the bearings prevents external dust and impurities from entering the support 2, avoiding wear on transmission components and preventing internal liquid leakage, thus ensuring long-term stable operation of the mechanism. The inner ring of the sealed bearing is interference-fitted with the rotating shaft 41, worm gear 43, and rotating rod 441, while the outer ring is fixed to the circular hole in the support 2. Low-resistance rotation is achieved through the rolling friction of balls or rollers. The bearing's sealing ring 23 (such as a lip seal) is tightly attached to the shaft surface, forming a sealing barrier to prevent external contaminants from intruding and internal media from leaking out. Furthermore, the grease inside the bearing further reduces friction and extends component life.

[0025] Example 2

[0026] Unlike Embodiment 1, the support 2 has an oil injection hole 21 at the end away from the cylinder body 1, which communicates with its internal cavity. A sealing screen 22 is threaded onto the oil injection hole 21, and a sealing ring 23 is provided on the sealing screen 22 to seal the gap between the sealing screen 22 and the oil injection hole 21. The oil injection hole 21 allows the operator to periodically inject lubricating oil into the transmission components (such as the worm gear 42, worm 43, and gear set) inside the support 2, reducing meshing friction and wear, and extending the service life of the mechanism. The sealing ring 23 ensures the sealing of the oil injection hole 21 when it is not filled with oil, preventing lubricating oil leakage and the intrusion of external dust. When lubrication is required, unscrew the sealing screen 22 and inject lubricating oil into the internal cavity of the support 2 through the oil injection hole 21. The lubricating oil flows over the surfaces of transmission components such as the worm gear 42, worm 43, and gears, forming an oil film to reduce friction. After the oil injection is completed, tighten the sealing screen 22. At this time, the sealing ring 23 is squeezed and deformed, filling the gap at the threaded connection between the sealing screen 22 and the oil injection hole 21, thus achieving a seal.

[0027] Example 3

[0028] Unlike Embodiment 1, to ensure the stability of the support 2, the support 2 is T-shaped and consists of a horizontal plate and a vertical plate. The locking mechanism 4 is located inside the horizontal plate of the support 2, and the driving component 44 is located inside the vertical plate of the support 2. The T-shaped structure arranges the locking mechanism 4 (worm gear 42, worm 43, etc.) and the driving component 44 (rack 443, gear set, etc.) in the horizontal and vertical plates respectively, realizing functional partitioning, making the structure compact and the force distribution reasonable. The horizontal plate provides a stable mounting base for the flipping seat 3 and the locking mechanism 4, while the vertical plate is connected to the cylinder body 1 and bears the thrust of the driving component 44, dispersing the overall force and improving the deformation resistance and installation stability of the support 2. The internal cavity of the horizontal plate houses components such as the rotating shaft 41, worm gear 42, and worm 43. The flipping seat 3 is mounted on the horizontal plate via the rotating shaft 41. When the worm gear 42 rotates, it drives the flipping seat 3 to flip around the horizontal plate. The vertical plate is perpendicular to the horizontal plate, and its internal cavity houses components such as the rack 443 and the first gear 442. The output shaft of the cylinder body 1 is fixedly connected to the rack 443 in the vertical plate. When the rack 443 is pushed up and down, the vertical plate bears the longitudinal thrust, while the horizontal plate transmits the flipping torque to the entire support 2 through structural rigidity, ensuring a clear force transmission path and avoiding local stress concentration.

[0029] The control method of this application is through a controller. The control circuit of the controller can be implemented by a person skilled in the art through simple programming. The power supply is also common knowledge in the art. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail here.

[0030] It should be noted that many of the standard parts used in this application are available on the market, while non-standard parts can be specially customized. The connection method used in this application is also a very common method in the mechanical field, and will not be described in detail here.

[0031] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A tilting cylinder with precisely controllable tilting angle, comprising a cylinder body (1), a support (2) mounted on the cylinder body (1), and a tilting seat (3) movably mounted on the support (2); Its features are: The support (2) is provided with a locking mechanism (4) for locking the angle of the flip seat (3). The locking mechanism (4) includes a rotating shaft (41) that is rotatably inserted into the support (2) through a round hole and fixedly connected to the flip seat (3), a worm wheel (42) fixedly mounted on the rotating shaft (41), a worm (43) that is rotatably inserted into the support (2) and meshes with the worm wheel (42), and a driving member (44) for driving the worm (43) to rotate. The driving member (44) is connected to the output shaft of the cylinder body (1).

2. The tilting cylinder with precisely controllable tilting angle according to claim 1, characterized in that: The drive unit (44) includes a rotating rod (441) rotatably inserted into the support (2) through a circular hole, a first gear (442) fixedly mounted on the rotating rod (441), and a rack (443) slidably disposed in the support (2) through a vertical groove and meshing with the first gear (442), and the bottom of the rack (443) is fixedly connected to the output shaft of the cylinder body (1).

3. The tilting cylinder with precisely controllable tilting angle according to claim 2, characterized in that: The drive unit (44) further includes a second gear (444) that is fixedly mounted on the worm (43) and the rotating rod (441) respectively, and the two second gears (444) mesh with each other.

4. The tilting cylinder with precisely controllable tilting angle according to claim 1, characterized in that: The rotating shaft (41), worm gear (43), and rotating rod (441) are all connected to the support (2) through sealed bearings.

5. The tilting cylinder with precisely controllable tilting angle according to claim 1, characterized in that: The support (2) has an oil injection hole (21) at one end away from the cylinder body (1) that communicates with its internal cavity. A sealing screen (22) is threaded into the oil injection hole (21). A sealing ring (23) is provided on the sealing screen (22) to seal the gap between the sealing screen (22) and the oil injection hole (21).

6. The tilting cylinder with precisely controllable tilting angle according to claim 1, characterized in that: The support (2) is T-shaped and consists of a horizontal plate and a vertical plate. The locking mechanism (4) is located inside the horizontal plate of the support (2), and the driving member (44) is located inside the vertical plate of the support (2).

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