Oil static pressure rotary table with brake function

Abstract

The utility model discloses an oil static pressure rotary table with a brake function, which relates to the technical field of liquid static pressure bearings and comprises an oil static pressure bearing, a shell is arranged on one side of the bottom of the oil static pressure bearing, an oil supply ring is arranged at the bottom of the shell, a lower cover is arranged at the bottom of the oil supply ring, and a brake ring is arranged on the front side of the oil supply ring. The brake system has a brake function, the brake ring deforms and the hole in the brake ring contracts and holds the rotating shaft tightly when oil is introduced into the brake system, rotation of the rotary table can be stopped quickly as required, when a load moves vertically, the brake function can ensure that the load cannot slide down when the load stops, the safety during working is improved, and the brake system is simple in structure and convenient to operate. The rotary table is simple in structure, high in adaptability and reliable in braking, rapid parking can be achieved when needed, the high-precision encoder adjusts oil supply pressure and flow, accurate control over the rotating speed and position of the rotary table is achieved, the feedback function of the high-precision encoder is beneficial to optimization of motor operation, and production efficiency and product quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid hydrostatic bearings, in particular to an oil hydrostatic turntable with a braking function. Background Art

[0002] An oil-hydrostatic turntable is a precision mechanical device that utilizes the static pressure of liquid to support and rotate a worktable. It primarily consists of a turntable, hydrostatic bearings, an oil supply system, a control system, and a drive mechanism. The hydrostatic bearing uses high-pressure liquid to create a stable liquid film between the turntable and the bearing, thereby supporting the turntable and reducing friction. The oil supply system is responsible for providing the high-pressure liquid and ensuring uniform flow and pressure distribution within the bearing. The control system regulates the oil supply pressure and flow rate to precisely control the turntable's rotational speed and position.

[0003] Existing hydrostatic turntables are typically used in vertical grinders, requiring only rotation without precise positioning or clamping. However, when precise positioning and braking are required, this functionality is lost. We have developed a hydrostatic turntable with a braking function. This includes a built-in high-precision encoder and a hydraulic brake, enabling precise positioning and clamping. This not only meets the rotation requirements of vertical grinding, but can also be used as a C-axis, achieving precise positioning and clamping of products and enabling fixed-angle milling.

[0004] Therefore, we designed an oil hydrostatic turntable with braking function to solve the above problems. Utility Model Content

[0005] The purpose of the present utility model is to provide an oil hydrostatic turntable with a braking function to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the utility model provides an oil hydrostatic turntable with a braking function, comprising an oil hydrostatic bearing, a shell is provided on one side of the bottom of the oil hydrostatic bearing, an oil supply ring is provided at the bottom of the shell, a lower cover is provided at the bottom of the oil supply ring, a brake ring is provided on the front side of the oil supply ring, a rotating shaft is fixedly provided on the other side of the bottom of the oil hydrostatic bearing, the rotating shaft is abutted against the brake ring, an encoder seat is provided at the rear end of the rotating shaft, and an encoding component is fixedly provided on one side of the encoder seat.

[0007] Furthermore, a stator is provided inside the shell, and a rotor is provided inside the stator. The stator and the rotor are combined to increase the power of the turntable.

[0008] Furthermore, a rotor adapter plate is fixedly provided at the front end of the rotating shaft, and a rotor is fixedly provided at the front bottom of the rotor adapter plate.

[0009] Furthermore, the rotor is rotatably connected to the interior of the stator.

[0010] Furthermore, the oil hydrostatic bearing is fixed to the outer ring of the housing.

[0011] Furthermore, the encoding component includes a high-precision encoder, and the high-precision encoder is fixedly installed on one side of the encoder seat.

[0012] Compared with the existing technology, the beneficial effects of the present invention are: by being equipped with a braking function, when the brake system is oiled, the brake ring is deformed and the hole on the brake ring shrinks and holds the rotating shaft tightly, so that the rotation of the turntable can be quickly stopped when needed. When the load is moving vertically, the braking function can ensure that the load will not slide down when shutting down, thereby improving safety during work. The brake system has a simple structure, strong adaptability, reliable braking, and can achieve rapid stopping when needed. The high-precision encoder adjusts the oil supply pressure and flow to achieve precise control of the turntable rotation speed and position. The feedback function of the high-precision encoder helps to optimize motor operation and improve production efficiency and product quality.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: by setting the stator and the rotor, the rotor is the rotating part in the motor, consisting of a rotor core and a rotor winding, the rotor core is made of laminated silicon steel sheets and is part of the magnetic circuit, the rotor winding is used to generate induced electromotive force and electromagnetic torque, and realize the conversion of mechanical energy and electrical energy, the stator is the stationary part of the motor, consisting of a stator core, a stator winding and a base structure, when current is passed through the stator winding, a rotating magnetic field is generated to drive the stator to rotate, the stator is also a key component for realizing the conversion of electrical energy and mechanical energy, and the combination of the stator and the rotor increases the power of the turntable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the cross-sectional structure of the utility model;

[0015] Figure 2 For this utility model Figure 1 A in the middle is an enlarged structural diagram;

[0016] Figure 3 For this utility model Figure 1 The enlarged structural diagram at B in the middle;

[0017] Figure 4 For this utility model Figure 1 Enlarged structural diagram at point C in the middle.

[0018] In the figure: 1. Oil hydrostatic bearing; 2. Housing; 3. Oil supply ring; 4. Lower cover; 5. High-precision encoder; 6. Encoder seat; 7. Rotating shaft; 8. Brake ring; 9. Stator; 10. Rotor; 11. Rotor adapter plate. DETAILED DESCRIPTION

[0019] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-4 The utility model provides a technical solution: an oil hydrostatic turntable with a braking function, comprising an oil hydrostatic bearing 1, a housing 2 is provided on one side of the bottom of the oil hydrostatic bearing 1, an oil supply ring 3 is provided on the bottom of the housing 2, a lower cover 4 is provided on the bottom of the oil supply ring 3, a brake ring 8 is provided on the front side of the oil supply ring 3, a rotating shaft 7 is fixedly provided on the other side of the bottom of the oil hydrostatic bearing 1, the rotating shaft 7 is abutted against the brake ring 8, an encoder seat 6 is provided at the rear end of the rotating shaft 7, an encoding component is fixedly provided on one side of the encoder seat 6, the oil hydrostatic bearing 1 is fixed to the outer ring of the housing 2, the encoding component includes a high-precision encoder 5, and the high-precision encoder 5 is fixedly mounted on one side of the encoder seat 6.

[0021] In specific implementation, the oil-hydrostatic bearing 1 uses high-pressure liquid to form a stable liquid film between the turntable and the oil-hydrostatic bearing 1, supporting the turntable and reducing friction. The oil supply system is responsible for providing high-pressure liquid and ensuring uniform flow and pressure distribution of the liquid in the oil-hydrostatic bearing 1. The high-precision encoder 5 adjusts the oil supply pressure and flow rate to achieve precise control of the turntable's rotational speed and position. The feedback function of the high-precision encoder 5 helps optimize motor operation, improve production efficiency and product quality. The turntable is also equipped with a braking function. When the brake system is oiled, the brake ring deforms and the holes in the brake ring contract, clamping the rotating shaft, which can quickly stop the turntable's rotation when needed. When the load is moving vertically, the braking function ensures that the load does not slide when stopped, improving operational safety. The brake system has a simple structure, strong adaptability, and reliable braking, which can achieve rapid stopping when needed. The brake system can convert the kinetic energy of the reduction motor into electrical energy, reducing energy consumption.

[0022] An oil hydrostatic bearing 1 is mounted on top of the housing 2 and fixed to its outer ring. A stator 9 is installed within the housing 2, combining with a rotor 10 to increase the power of the turntable. An oil supply ring 3 is mounted at the bottom of the housing 2, and a lower cover 4 is mounted at its base. A brake ring 8 is positioned in front of the oil supply ring 3. When oil is passed through the brake system, the brake ring 8 deforms, and the holes in the brake ring 8 contract, tightening the rotating shaft 7. The rotating shaft 7 is fixed to the bottom of the inner ring of the oil hydrostatic bearing 1. The rotor 10 is secured to the front end via a rotor adapter plate 11. An encoder seat 6 is mounted at the rear end of the rotating shaft 7, to which a high-precision encoder 5 is mounted. This high-precision encoder 5 enables high-precision positioning.

[0023] See Figure 1-4 As shown, a stator 9 is provided inside the housing 2, a rotor 10 is provided inside the stator 9, a rotor adapter plate 11 is fixedly provided at the front end of the rotating shaft 7, and the rotor 10 is fixedly provided at the front bottom of the rotor adapter plate 11, and the rotor 10 is rotatably connected to the inside of the stator 9.

[0024] In specific implementation, the rotor 10 is the rotating component in the motor, consisting of a rotor core and a rotor winding. The rotor core is made of stacked silicon steel sheets and is part of the magnetic circuit. The rotor winding is used to generate induced electromotive force and electromagnetic torque to realize the conversion of mechanical energy and electrical energy. The stator 9 is the stationary part of the motor, consisting of a stator core, a stator winding and a base structure. When current is passed through the stator winding, a rotating magnetic field is generated to drive the stator 9 to rotate. The stator 9 is also a key component for realizing the conversion of electrical energy and mechanical energy. The combination of the stator 9 and the rotor 10 increases the power of the turntable.

[0025] Working Principle: The oil-hydrostatic bearing 1 uses high-pressure liquid to form a stable liquid film between the turntable and the oil-hydrostatic bearing 1, supporting the turntable and reducing friction. The oil supply system is responsible for providing high-pressure liquid and ensuring uniform flow and pressure distribution within the oil-hydrostatic bearing 1. A high-precision encoder 5 adjusts the oil supply pressure and flow rate to achieve precise control of the turntable's rotational speed and position. The feedback function of the high-precision encoder 5 helps optimize motor operation, improving production efficiency and product quality. The turntable is also equipped with a brake function. When oil is passed through, the deformation hole of the brake ring 8 contracts and clamps the rotating shaft 7, which can quickly stop the turntable's rotation when needed. When the load is moving vertically, the brake ensures that the load does not slide during shutdown, improving safety. The brake system has a simple structure, strong adaptability, and reliable braking, which can achieve rapid stopping when needed. The brake system converts the kinetic energy of the reduction motor into electrical energy, reducing energy consumption.

[0026] The rotor 10 is the rotating part of the motor, consisting of a rotor core and a rotor winding. The rotor core is made of laminated silicon steel sheets and is part of the magnetic circuit. The rotor winding is used to generate induced electromotive force and electromagnetic torque to realize the conversion of mechanical energy into electrical energy. The stator 9 is the stationary part of the motor, consisting of a stator core, a stator winding and a base structure. When current is passed through the stator winding, a rotating magnetic field is generated to drive the stator 9 to rotate. The stator 9 is also a key component for realizing the conversion of electrical energy into mechanical energy. The combination of the stator 9 and the rotor 10 increases the power of the turntable.

[0027] An oil hydrostatic bearing 1 is mounted on top of the housing 2 and fixed to its outer ring. A stator 9 is installed within the housing 2, combining with a rotor 10 to increase the power of the turntable. An oil supply ring 3 is mounted at the bottom of the housing 2, and a lower cover 4 is mounted at the bottom of the oil supply ring 3. A brake ring 8 is positioned in front of the oil supply ring 3. When oil is passed through, the brake ring 8 deforms, and the holes in the brake ring 8 contract, tightening the rotating shaft 7. The rotating shaft 7 is fixed to the bottom of the inner ring of the oil hydrostatic bearing 1. The rotor 10 is secured to the front end via a rotor adapter plate 11. An encoder seat 6 is mounted at the rear end of the rotating shaft 7, to which a high-precision encoder 5 is mounted. This high-precision encoder 5 enables high-precision positioning.

Claims

1. An oil hydrostatic turntable with a braking function, comprising an oil hydrostatic bearing (1), characterized in that: A housing (2) is provided on one side of the bottom of the oil static pressure bearing (1), an oil supply ring (3) is provided on the bottom of the housing (2), a lower cover (4) is provided on the bottom of the oil supply ring (3), a brake ring (8) is provided on the front side of the oil supply ring (3), a rotating shaft (7) is fixedly provided on the other side of the bottom of the oil static pressure bearing (1), the rotating shaft (7) and the brake ring (8) are abutted against each other, an encoder seat (6) is provided at the rear end of the rotating shaft (7), and an encoding component is fixedly provided on one side of the encoder seat (6).

2. The oil hydrostatic turntable with a brake function according to claim 1, characterized in that: A stator (9) is provided inside the housing (2), and a rotor (10) is provided inside the stator (9).

3. The oil hydrostatic turntable with a brake function according to claim 1, characterized in that: A rotor adapter plate (11) is fixedly provided at the front end of the rotating shaft (7), and a rotor (10) is fixedly provided at the front bottom of the rotor adapter plate (11).

4. The oil hydrostatic turntable with a brake function according to claim 3, characterized in that: The rotor (10) is rotatably connected to the inside of the stator (9).

5. The oil hydrostatic turntable with a brake function according to claim 1, characterized in that: The oil static pressure bearing (1) is fixed to the outer ring of the housing (2).

6. The oil hydrostatic turntable with a brake function according to claim 1, characterized in that: The encoding component comprises a high-precision encoder (5), and the high-precision encoder (5) is fixedly mounted on one side of an encoder seat (6).

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