High-power direct-drive rotary table

Abstract

The high-power direct-drive rotary table comprises a supporting table shell, the inner side of the upper end of the supporting table shell is connected with a rotary table assembly through a rotary table bearing, the rotary table assembly is of a boss-shaped structure, the center of the lower surface of the rotary table assembly is connected with an inner sleeve through a screw, and a flange plate is fixed to the lower surface of the supporting table shell. The middle of the flange plate is connected with an inner sleeve through a shaft sleeve, a brake part is fixed to the outer side of the inner sleeve, a rotor assembly is fixed to the lower surface of the rotary table assembly through screws, a stator assembly is arranged on the inner side of the supporting table shell, and the rotor assembly and the stator assembly are installed in a matched mode. The device has the characteristics of large bearing capacity, large torsion and high precision, and meanwhile, the mechanical structure is simplified; the torque motor has ultra-long service life and extremely low abrasion, energy and materials are greatly saved, and the torque motor has high energy-saving and environment-friendly performance.

Description

Technical Field

[0001] The utility model relates to the technical field of composite processing machine tools, in particular to a high-power direct-drive turntable. Background Art

[0002] The work turntable is an important functional component of the machining center. Its rotary motion is linked with other linear axes, and can process various complex curved surfaces or special-shaped parts. The CNC direct-drive rotary table is the most ideal and important functional component of the compound processing machine tool. The CNC direct-drive rotary table in the existing technology is controlled by a servo control system, which has the disadvantages of complex mechanical transmission mechanism, small load, low efficiency and high noise. It has high requirements on the equipment for processing, heat treatment and assembly process of transmission parts, is easy to wear, difficult to maintain, etc., and has high requirements on electrical control technology. Traditional drive requires a motor to connect the reducer and gearbox, so a high-power servo motor is needed to improve its dynamic response capability. Therefore, how to provide a large-scale direct-drive CNC turntable with a simplified mechanical structure, large load, large torque and high precision is a technical problem that technical personnel in this field urgently need to solve. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects, provide a high-power direct-drive turntable, and adopt a direct-drive torque motor to directly drive the worktable to rotate, which has the characteristics of large load, large torque and high precision, and simplifies the mechanical structure; the torque motor has an extremely long service life and extremely low wear, greatly saves energy and materials, has high energy-saving and environmental protection performance, and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-power direct-drive turntable, comprising a support table shell, the inner side of the upper end of the support table shell is connected to a turntable assembly through a turntable bearing, the turntable assembly is a boss-shaped structure, the center of the lower surface of the turntable assembly is connected to an inner sleeve through screws, a flange is fixed to the lower surface of the support table shell, the middle of the flange is connected to the inner sleeve through a shaft sleeve, a brake part is fixed to the outside of the inner sleeve, a rotor assembly is fixed to the lower surface of the turntable assembly through screws, a stator assembly is provided on the inner side of the support table shell, the rotor assembly and the stator assembly are installed in coordination, and the high torque of the product is directly connected to the motion device by energizing the rotor assembly and the stator assembly.

[0005] Furthermore, annular oil grooves are evenly provided on the brake component, and oil outlet channels identical to the annular oil grooves are evenly provided on the brake component, and the oil outlet channels are in one-to-one communication with the annular oil grooves.

[0006] Furthermore, the turntable assembly includes a turntable, an opening corresponding to the middle through hole of the inner sleeve is provided in the middle of the turntable, and a processing table is fixed on the upper surface of the turntable.

[0007] Furthermore, a sealing ring is provided between the lower surface of the support platform shell and the upper surface of the flange, and the lower surface of the support platform shell is provided with an annular groove corresponding to the sealing ring.

[0008] Compared with the prior art, the beneficial effects of the present invention are: the turntable assembly is directly driven to rotate by directly energizing the rotor assembly and the stator assembly, so that not only can the high torque of the product be directly connected to the motion device, thereby eliminating connection mechanisms such as reducers, gear boxes, pulleys, etc., the high-power direct-drive turntable adopts a direct-drive torque motor to directly drive the worktable to rotate, which has the characteristics of large load, large torque and high precision, and simplifies the mechanical structure; the torque motor has an extremely long service life and extremely low wear, which greatly saves energy and materials and has high energy-saving and environmental protection performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic diagram of the structure of the utility model.

[0010] In the figure: 1 support platform shell, 2 brake parts, 3 inner sleeve, 4 shaft sleeve, 5 flange, 6 rotor assembly, 7 stator assembly, 8 turntable bearing, 9 turntable assembly, 91 processing table, 92 turntable. DETAILED DESCRIPTION

[0011] 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.

[0012] See also Figure 1The present invention provides a technical solution: a high-power direct-drive turntable, including a support platform shell 1, a turntable assembly 9 is connected to the inner side of the upper end of the support platform shell 1 through a turntable bearing 8, the turntable assembly 9 is a convex platform structure, the center of the lower surface of the turntable assembly 9 is connected to the inner sleeve 3 by screws, the lower surface of the support platform shell 1 is fixed with a flange 5, the middle of the flange 5 is connected to the inner sleeve 3 through a shaft sleeve 4, the outer side of the inner sleeve 3 is fixed with a brake component 2, and the lower surface of the turntable assembly 9 is fixed with a rotor assembly 6 by screws. The inner side of the support platform shell 1 is provided with a stator assembly 7, the rotor assembly 6 and the stator assembly 7 are installed in coordination. When the rotor assembly 6 and the stator assembly 7 are energized, the high torque of the product is directly connected to the motion device, and annular oil grooves are evenly provided on the brake component 2, and the brake component 2 is evenly provided with an oil outlet channel that is the same as the annular oil groove, and the oil outlet channel is connected to the annular oil groove in a one-to-one correspondence. The turntable assembly 9 includes a turntable 92, and the middle of the turntable 92 is provided with an opening corresponding to the middle through hole of the inner sleeve 3. A processing table 91 is fixed on the upper surface, and a sealing ring is provided between the lower surface of the support table shell 1 and the upper surface of the flange 5. The lower surface of the support table shell 1 is provided with an annular groove corresponding to the sealing ring. The rotor assembly 6 and the stator assembly 7 are directly energized to directly drive the turntable assembly 9 to rotate. The direct connection method is adopted to reduce the positioning error caused by the mechanical structure, so that the process accuracy is guaranteed; on the other hand, it reduces the dimensional error caused by the friction of the mechanical structure, and secondly, it is also convenient for installation and reduces the noise during use. Therefore, it can not only make the high torque of the product directly connected to the motion device, thereby eliminating the connection mechanisms such as reducers, gear boxes, pulleys, etc. The high-power direct-drive turntable adopts a direct-drive torque motor to directly drive the worktable to rotate, which has the characteristics of large load, large torque and high precision, and simplifies the mechanical structure; the torque motor has an ultra-long service life and extremely low wear, which greatly saves energy and materials and has high energy-saving and environmental protection performance.

[0013] During use: the rotor assembly 6 and the stator assembly 7 are directly energized to directly drive the turntable assembly 9 to rotate. Therefore, not only can the high torque of the product be directly connected to the motion device, thereby eliminating the need for connection mechanisms such as reducers, gear boxes, pulleys, etc., but a direct-drive torque motor is used to directly drive the workbench to rotate, which has the characteristics of large load, large torque and high precision, while simplifying the mechanical structure; the torque motor has an extremely long service life and extremely low wear, greatly saves energy and materials, has high energy-saving and environmental protection performance, and can save a lot of installation space.

[0014] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A high-power direct-drive turntable, comprising a support platform housing (1), characterized in that: The inner side of the upper end of the support platform shell (1) is connected to a turntable assembly (9) through a turntable bearing (8), and the turntable assembly (9) is a boss-shaped structure. The center of the lower surface of the turntable assembly (9) is connected to an inner sleeve (3) through screws. A flange (5) is fixed to the lower surface of the support platform shell (1), and the middle of the flange (5) is connected to the inner sleeve (3) through a shaft sleeve (4). A brake component (2) is fixed to the outer side of the inner sleeve (3). The lower surface of the turntable assembly (9) is fixed to a rotor assembly (6) through screws. A stator assembly (7) is provided on the inner side of the support platform shell (1), and the rotor assembly (6) and the stator assembly (7) are installed in coordination.

2. The high-power direct-drive turntable according to claim 1, characterized in that: Annular oil grooves are evenly provided on the brake component (2), and oil outlet channels identical to the annular oil grooves are evenly provided on the brake component (2), and the oil outlet channels are in one-to-one communication with the annular oil grooves.

3. The high-power direct-drive turntable according to claim 1, characterized in that: The turntable assembly (9) comprises a turntable (92), an opening corresponding to the middle through hole of the inner sleeve (3) is provided in the middle of the turntable (92), and a processing table (91) is fixed on the upper surface of the turntable (92).

4. The high-power direct-drive turntable according to claim 1, characterized in that: A sealing ring is provided between the lower surface of the support platform housing (1) and the upper surface of the flange (5), and an annular groove corresponding to the sealing ring is provided on the lower surface of the support platform housing (1).

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