Five-axis cradle rotary table

Abstract

The utility model discloses a five-axis cradle rotary table, which comprises a swing driving mechanism, a disc tailstock, a cradle and a rotary table, the swing driving mechanism comprises an A-axis torque motor and a first rotating assembly, the disc tailstock and the swing driving mechanism are oppositely arranged, the cradle is horizontally arranged between the swing driving mechanism and the disc tailstock, and the rotary table is arranged on the disc tailstock. The rotary table is arranged above the mounting groove of the cradle base; the bottom of the cradle base is arranged to be of the opening structure, the sealing cover plate of an aluminum alloy light material structure is installed at the opening, the cover plate prevents machining chips and cutting fluid from splashing, internal pipelines are protected, meanwhile, the weight of the whole cradle is reduced by 40 KG according to actual measurement and calculation, the starting and stopping impact on a motor is reduced, and the service life of the cradle is prolonged. And vibration during movement is correspondingly reduced, and quick disassembly can be achieved during maintenance.

Description

Technical Field

[0001] The utility model relates to the technical field of turntables, in particular to a five-axis cradle turntable. Background Art

[0002] CNC machine tool is the abbreviation of digitally controlled machine tool. It is an automated machine tool equipped with a program control system. CNC machine tool has better solved the problem of processing complex, precise, small batch and multi-variety workpieces. It is a flexible and high-efficiency automated machine tool. It represents the development direction of modern machine tool control technology and is a typical mechatronics product.

[0003] The five-axis cradle turntable is an important component of CNC machine tools. It is a multi-axis rotary platform equipment used in industrial production. It is usually used for processing and assembling complex parts or products. The five-axis cradle turntable can rotate, tilt and rotate in multiple directions, thereby achieving more flexible processing and assembly operations. It is widely used in aerospace, automobile manufacturing, mechanical processing and other fields, and can improve production efficiency and product quality.

[0004] The cradle of the currently used five-axis cradle turntable is generally made of one-piece casting. Although it has high integrity, when problems occur in the internal pipelines or components during use, the entire machine needs to be disassembled, which is time-consuming and labor-intensive, and it is difficult to repair. In addition, due to its excessive weight, it has a great impact on the motor during start-up and shutdown, which increases the damage rate of the motor and reduces the driving time. Summary of the Invention

[0005] In order to solve the above problems, the utility model provides a five-axis cradle turntable which is easy to maintain and can effectively extend the driving time.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solution: a five-axis cradle turntable, including a swing drive mechanism, a disc tailstock, a cradle and a turntable, the swing drive mechanism including an A-axis torque motor and a first rotating component, the bottom of the A-axis torque motor is provided with a fixing hole connected to the machine tool, the first rotating component is connected to the output shaft of the A-axis torque motor, the disc tailstock is arranged opposite to the swing drive mechanism, and its bottom is also provided with a fixing hole connected to the machine tool, and a second rotating component is also installed in the disc tailstock.

[0007] The cradle is placed horizontally between the rocking drive mechanism and the disc tailstock. Mounting holes that match the rotating axes of the first rotating assembly and the second rotating assembly are opened on the rocker arms on both sides of the cradle, and are installed and connected to the rotating axes of the first rotating assembly and the second rotating assembly through the mounting holes. A mounting groove is opened in the middle of the top surface of the base of the cradle, and the bottom surface is an open structure. A plurality of equidistantly arranged threaded fixing holes are opened on the edge of the opening.

[0008] The bottom of the cradle base is provided with a sealing cover plate that is adapted to its opening. The sealing cover plate is made of a lightweight aluminum alloy material structure. A connecting blue plate is fixed on the edge of the top surface of the sealing cover plate. The shape of the connecting blue plate is the same as the shape of the bottom of the cradle base, and its outer diameter is also the same as the outer diameter of the bottom of the base. The screw hole positions of the connecting blue plate correspond one-to-one to the fixing holes on the bottom of the base. The sealing cover plate is connected to the fixing holes on the base of the cradle through the connecting blue plate and bolts to seal the bottom of the base.

[0009] The turntable is arranged above the mounting slot of the cradle base, and a C-axis torque motor is provided below the turntable. The C-axis torque motor is installed in the mounting slot of the cradle base, and its output end is connected to the bottom surface of the turntable for transmission.

[0010] As an optimization solution of this case, in order to improve the sealing effect, a sealing gasket is provided between the connecting blue plate of the sealing cover and the bottom surface of the cradle base.

[0011] Furthermore, the size and shape of the sealing gasket are the same as those of the connecting flange, and the sealing gasket is provided with a hole ring corresponding to the screw hole of the connecting flange and the fixing hole on the bottom of the base.

[0012] Beneficial effects: 1. The utility model sets the bottom of the cradle base into an open structure and installs a sealing cover plate made of lightweight aluminum alloy at the opening. The cover plate blocks the splash of machining chips and cutting fluid, protects the internal pipelines, and reduces the overall weight of the cradle. Actual measurement shows a weight reduction of 40KG, which reduces the impact of starting and stopping the motor, and reduces the vibration during exercise accordingly. It can also be quickly disassembled for maintenance.

[0013] ②. This utility model adopts a torque motor direct drive mode, dual-axis independent control, strong load-bearing capacity, stable operation, and can avoid the precision error caused by too many transmission parts to achieve high-precision positioning requirements. It is suitable for five-axis CNC machine tool applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of the utility model.

[0015] Figure 2 for Figure 1 Schematic diagram of the main structure.

[0016] Figure 3 for Figure 1 Schematic diagram of the bottom structure.

[0017] In the figure: 1. Disc tailstock; 2. Cradle; 3. Turntable; 4. A-axis torque motor; 5. First rotating assembly; 6. Second rotating assembly; 7. Sealing cover; 8. Connecting blue disk; 9. C-axis torque motor. DETAILED DESCRIPTION

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Identical components are denoted by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, and the terms "inward" and "outward" refer to directions toward or away from the geometric center of a specific component, respectively. The accompanying drawings are highly simplified and use non-precise ratios solely for the purpose of conveniently and clearly illustrating the embodiments of the present invention.

[0020] like Figure 1-3 As shown, this embodiment discloses a five-axis cradle turntable, including a swing drive mechanism, a disc tailstock 1, a cradle 2 and a turntable 3, see Figure 1 and Figure 2 The swing drive mechanism includes an A-axis torque motor 4 and a first rotating component 5. The bottom of the A-axis torque motor 4 is provided with a fixing hole connected to the machine tool. The first rotating component 5 is connected to the output shaft of the A-axis torque motor 4. The disc tailstock 1 is arranged opposite to the swing drive mechanism. The bottom of the disc tailstock 1 is also provided with a fixing hole connected to the machine tool. A second rotating component 6 is also installed in the disc tailstock 1.

[0021] from Figure 1 and Figure 2 It can be seen that the cradle 2 is placed horizontally between the rocking drive mechanism and the disc tailstock 1, and mounting holes adapted to the rotating axes of the first rotating component 5 and the second rotating component 6 are opened on the rocker arms on both sides of the cradle 2, and are installed and connected to the rotating axes of the first rotating component 5 and the second rotating component 6 through the mounting holes. A mounting groove is opened in the middle of the top surface of the base of the cradle 2, and the bottom surface is an open structure, and a number of equidistantly arranged threaded fixing holes are opened on the edge of the opening.

[0022] See also Figure 3 The bottom of the base of the cradle 2 is provided with a sealing cover plate 7 that is adapted to its opening. The sealing cover plate 7 is made of a lightweight aluminum alloy material structure. A connecting blue plate 8 is fixed on the edge of the top surface of the sealing cover plate 7. The shape of the connecting blue plate 8 is the same as the bottom shape of the cradle 2 base, and its outer diameter is also the same as the outer diameter of the bottom of the base. The screw hole positions of the connecting blue plate 8 correspond one-to-one to the fixing holes on the bottom of the base. The sealing cover plate 7 is connected to the fixing holes on the base of the cradle 2 through the connecting blue plate 8 and bolts to seal the bottom of the base.

[0023] A sealing gasket is provided between the connecting blue plate 8 of the sealing cover plate 7 and the bottom surface of the cradle 2 base. The size and shape of the sealing gasket are the same as those of the connecting blue plate 8. The sealing gasket is provided with hole rings corresponding to the screw holes of the connecting blue plate 8 and the fixing holes on the bottom of the base.

[0024] See also Figure 1-3 The turntable 3 is arranged above the mounting groove of the base of the cradle 2, and a C-axis torque motor 9 is provided below the turntable 3. The C-axis torque motor 9 is installed in the mounting groove of the base of the cradle 2, and its output end is connected to the bottom surface of the turntable 3 for transmission.

[0025] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed in the present invention are intended to be covered by the claims of the present invention.

Claims

1. A five-axis cradle turntable, comprising a rocking drive mechanism, a disc tailstock (1), a cradle (2) and a turntable (3), characterized in that: The swing drive mechanism comprises an A-axis torque motor (4) and a first rotating assembly (5); the bottom of the A-axis torque motor (4) is provided with a fixing hole connected to a machine tool; the first rotating assembly (5) is connected to the output shaft of the A-axis torque motor (4); the disc tailstock (1) is arranged opposite to the swing drive mechanism, and the bottom of the disc tailstock is also provided with a fixing hole connected to the machine tool; the second rotating assembly (6) is also installed in the disc tailstock (1); The cradle (2) is horizontally placed between the rocking drive mechanism and the disc tailstock (1), and mounting holes adapted to the rotation axes of the first rotating assembly (5) and the second rotating assembly (6) are provided on the rocker arms on both sides of the cradle (2), and the cradle is connected to the rotation axes of the first rotating assembly (5) and the second rotating assembly (6) through the mounting holes. A mounting groove is provided in the middle of the top surface of the base of the cradle (2), and the bottom surface is an open structure, and a plurality of threaded fixing holes arranged at equal distances are provided on the edge of the opening; The bottom of the cradle (2) base is provided with a sealing cover plate (7) adapted to the opening thereof, the sealing cover plate (7) being made of a lightweight aluminum alloy structure, a connecting blue plate (8) being fixed on the edge of the top surface of the sealing cover plate (7), the connecting blue plate (8) having the same shape as the bottom of the cradle (2) base, and the outer diameter thereof being the same as the outer diameter of the bottom of the base, and the screw hole positions of the connecting blue plate (8) corresponding to the fixing holes on the bottom of the base, the sealing cover plate (7) being connected to the fixing holes on the base of the cradle (2) through the connecting blue plate (8) and bolts to seal the bottom of the base; The turntable (3) is arranged above the mounting groove of the cradle (2) base, and a C-axis torque motor (9) is provided below the turntable (3). The C-axis torque motor (9) is installed in the mounting groove of the cradle (2) base, and its output end is connected to the bottom surface of the turntable (3) for transmission.

2. The five-axis cradle turntable according to claim 1, characterized in that: A sealing gasket is provided between the connecting blue plate (8) of the sealing cover plate (7) and the bottom surface of the cradle (2) base.

3. The five-axis cradle turntable according to claim 2, characterized in that: The size and shape of the sealing gasket are the same as those of the connecting flange (8), and the sealing gasket is provided with a hole ring corresponding to the screw hole of the connecting flange (8) and the fixing hole on the bottom of the base.

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