Five-axis motorized turntable with dustproof function

Abstract

The utility model discloses a motor five -axis rotary table with dustproof function, including bottom plate, the bottom plate top fixed mounting has rocking arm subassembly, rocking arm subassembly includes: two bearing seat, dustproof shield, fixed frame, dust screen, first motor, first helical gear, second helical gear and rotary table subassembly, by the dustproof shield, replaceable dust screen etc. Composed multilevel dustproof system is constructed, has guaranteed heat dissipation ventilation while effectively blocking dust invasion core transmission area, has improved the adaptability and durability of rotary table under the severe working condition significantly, it adopts helical gear meshing transmission (beta1 equals -beta2) and keeps gear pair modulus and pressure angle consistent, has guaranteed the high stability of transmission, low noise and long -term precision, in addition the design of replaceable dust screen makes routine maintenance very convenient, has reduced life cycle cost greatly.

Description

Technical Field

[0001] This utility model relates to the field of dustproof technology for five-axis rotary tables for motors, specifically a five-axis rotary table for motors with dustproof function. Background Technology

[0002] In modern high-end manufacturing fields, such as precision machining, inspection and automated assembly, the five-axis rotary table is a core functional component. Its accuracy, stability and reliability directly determine the quality of the final product. Traditional motor-driven five-axis rotary tables usually have their transmission mechanisms (such as gears and bearings) and drive motors directly exposed to the external environment, or only have simple protection.

[0003] In actual work environments, especially in metal processing, woodworking, and composite material polishing, the air is filled with a large amount of dust, debris, and oil mist. These pollutants can easily penetrate the turntable and adhere to the gear meshing surfaces, bearing raceways, and motor windings. Long-term accumulation can lead to a series of problems: First, hard dust accelerates the wear of gears and bearings, generating vibration and noise, reducing transmission accuracy and service life; second, dust accumulation may block heat dissipation channels, causing the motor and transmission components to overheat, leading to thermal deformation or even burnout; finally, maintenance personnel need to frequently stop the machine for cleaning and maintenance, seriously affecting the equipment's production efficiency and continuous operation capability.

[0004] Most of the existing five-axis rotary tables have insufficient dust protection under harsh working conditions, making it difficult to meet the stringent requirements of modern industry for high precision, high reliability, and maintenance-free operation. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model discloses a five-axis rotary table with dustproof function, which solves the dust problem.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a five-axis rotary table for motors with dustproof function, comprising a base plate, characterized in that: a rocker arm assembly is fixedly installed on the top of the base plate;

[0007] The rocker arm assembly includes: two bearing seats, a dust cover, a fixing frame, a dustproof mesh, a first motor, a first helical gear, a second helical gear, and a turntable assembly;

[0008] Two bearing seats are fixedly installed on the left and right ends of the base plate, respectively. The dust cover is fixedly installed on the left side of the bearing seat on the left end. The dust cover has a ventilation hole at the rear end. The fixing frame is fixedly installed on the ventilation hole at the rear end of the dust cover. The dustproof mesh is movably embedded in the fixing frame. The first motor is fixedly installed in the dust cover. The first helical gear is fixedly installed in the dust cover and is fixedly installed on the main shaft of the first motor. The second helical gear meshes with the first helical gear. The two ends of the turntable assembly are respectively movably fitted between the two bearing seats through bearings, and one end of the turntable assembly is fixedly connected to the second helical gear.

[0009] In the above scheme, the turntable assembly includes: a connecting housing, a fixed frame, a dustproof mesh, a second motor, a pinion, an internal gear, and a rotary table;

[0010] The two ends of the connecting housing are respectively movably fitted between the two bearing seats via bearings, and one end of the connecting housing is fixedly connected to the second helical gear. A ventilation hole is provided at the center of the bottom end of the connecting housing, and the fixing frame is fixedly installed on the ventilation hole. The dustproof mesh is movably embedded in the fixing frame. The second motor is fixedly installed in the connecting housing. The pinion is movably installed in the connecting housing and is fixedly installed on the main shaft of the second motor. The internal gear is movably installed on the top end of the connecting housing via bearings and meshes with the pinion. The rotary table is fixedly installed on the upper end of the internal gear.

[0011] In the above scheme, the first helical gear and the second helical gear mesh externally at a helix angle: β1 = -β2.

[0012] In the above scheme, the first helical gear and the second helical gear, as well as the pinion and the internal gear, have the same module and pressure angle.

[0013] In the above scheme, the dustproof mesh is made of replaceable cotton pads.

[0014] The five-axis rotary table with dustproof function provided by this utility model has the following beneficial effects: By constructing a multi-level dustproof system composed of dustproof covers, replaceable dustproof mesh, etc., it effectively blocks dust from entering the core transmission area while ensuring heat dissipation and ventilation, significantly improving the adaptability and durability of the rotary table under harsh working conditions; it adopts helical gear meshing transmission (β1=-β2) and keeps the gear pair module and pressure angle consistent, ensuring high transmission stability, low noise and long-term accuracy; in addition, the design of replaceable dustproof mesh makes daily maintenance extremely convenient, greatly reducing the life cycle cost, thus systematically solving the pain points of traditional equipment being easily damaged in dusty environments, having poor accuracy retention and frequent maintenance, and is especially suitable for modern intelligent production lines with strict requirements for cleanliness and accuracy. Attached Figure Description

[0015] Figure 1 This is a front-view three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a top sectional view of the structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the main structure of this utility model.

[0018] In the diagram: 1. Base plate, 2. Bearing seat, 3. Dustproof cover, 4. Fixing frame, 5. Dustproof mesh, 6. First motor, 7. First helical gear, 8. Second helical gear, 9. Connecting box, 10. Second motor, 11. Pinion, 12. Internal gear, 13. Rotary table. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Example 1: Please refer to Figure 1-3 A five-axis rotary table for motors with dustproof function includes a base plate 1, and a rocker arm assembly is fixedly installed on the top of the base plate 1.

[0021] The rocker arm assembly includes: two bearing seats 2, a dust cover 3, a fixing frame 4, a dustproof mesh 5, a first motor 6, a first helical gear 7, a second helical gear 8, and a turntable assembly.

[0022] Two bearing seats 2 are fixedly installed on the left and right ends of the base plate 1, respectively. The dust cover 3 is fixedly installed on the left side of the left bearing seat 2. The rear end of the dust cover 3 has a ventilation hole. The fixing frame 4 is fixedly installed on the ventilation hole at the rear end of the dust cover 3. The dust mesh 5 is movably embedded in the fixing frame 4. The dust mesh 5 uses replaceable cotton pads. The porous fiber structure of the cotton pads can effectively block tiny dust particles while allowing air to pass through, realizing the "breathing" function, balancing the internal and external pressure and dissipating heat. When the cotton pads are clogged, there is no need to replace or clean the entire cover or fixing frame 4. Just like replacing an air conditioning filter, you can simply take out the old cotton pads and replace them with new ones. This greatly reduces the difficulty and cost of maintenance.

[0023] The first motor 6 is fixedly installed inside the dustproof cover 3. The first helical gear 7 is also fixedly installed inside the dustproof cover 3 and on the main shaft of the first motor 6. The second helical gear 8 meshes with the first helical gear 7. Both ends of the turntable assembly are movably mounted between two bearing seats 2 via bearings, and one end of the turntable assembly is fixedly connected to the second helical gear 8. The helix angle of the first helical gear 7 and the second helical gear 8 is externally meshed: β1 = -β2. During use, this is the basic geometric requirement for the meshing of a pair of helical gears; β1 = -β2 indicates that the helix angles of the two gears are equal in magnitude but opposite in direction.

[0024] In operation, the operator places the workpiece to be processed onto the turntable assembly. The first motor 6 is then started. Upon receiving a command from the control system, the first motor 6 begins to rotate, and its main shaft rotates. The first helical gear 7, fixedly mounted on the motor shaft, rotates accordingly. Power and motion are transmitted through the meshing second helical gear 8. The meshing of helical gears offers advantages such as smooth transmission, low noise, and high load-bearing capacity. This process transmits the motor's power to the central shaft of the turntable assembly. The second helical gear 8 is fixedly connected to one end of the turntable assembly, while both ends of the turntable assembly are supported by bearings within the left and right bearing seats 2. Therefore, when the second helical gear 8 rotates, it directly drives the workpiece mounted on the entire turntable assembly to perform precise and stable rotational motion within the bearing seats 2. Two bearing seats 2 provide robust and stable support for the entire turntable assembly, ensuring its radial and axial stiffness during rotation. This is an important structural foundation for ensuring machining accuracy. Key transmission components such as the first motor 6, the first helical gear 7, and the second helical gear 8 are installed inside the dustproof cover 3, effectively blocking external contaminants such as dust, chips, and liquids from entering, protecting transmission accuracy and extending the life of components. Ventilation holes are provided at the rear end of the dustproof cover 3 to balance the heat generated during motor operation and prevent overheating inside the cover. The fixed frame 4 and the movable dustproof mesh 5 allow airflow for heat dissipation, while physically blocking most dust from passing through, achieving a balance between heat dissipation and dust prevention. The movable dustproof mesh 5 is used for convenient periodic replacement.

[0025] In the specific implementation process, the turntable assembly includes: a connecting box 9, a fixed frame 4, a dustproof mesh 5, a second motor 10, a pinion 11, an internal gear 12, and a rotary table 13.

[0026] The two ends of the connecting housing 9 are respectively movably mounted between two bearing seats 2 via bearings, and one end of the connecting housing 9 is fixedly connected to the second helical gear 8. A ventilation hole is opened at the center of the bottom end of the connecting housing 9. The fixing frame 4 is fixedly installed on the ventilation hole opened at the center of the bottom end of the connecting housing 9. The dustproof mesh 5 is movably embedded in the fixing frame 4. The second motor 10 is fixedly installed in the connecting housing 9. The pinion 11 is movably installed in the connecting housing 9 and is fixedly installed on the main shaft of the second motor 10. The internal gear 12 is movably installed on the top of the connecting housing 9 via bearings and meshes with the pinion 11. The rotary table 13 is fixedly installed on the upper end of the internal gear 12. The rotary table 13 is located outside the connecting housing 9, and a chuck (this is the prior art) is fixedly installed on the top of the rotary table 13. The workpiece is installed on the chuck on the rotary table 13.

[0027] In use, the operator fixes the workpiece to be processed onto the chuck on the rotary table of the rotary table assembly. When the worktable needs to rotate, the second motor 10, fixedly installed in the connecting housing 9, starts, and its spindle begins to rotate. The pinion 11 fixed on the spindle of the second motor 10 rotates accordingly. The pinion 11 meshes with a large internal gear 12. When the pinion 11 drives the internal gear 12, the internal gear 12 rotates, and the rotary table 13 fixedly installed on the upper end of the internal gear 12 also rotates together. By using the meshing of the pinion 11 with the large internal gear 12, the high speed of the motor can be achieved. The small torque is converted into the low speed and high torque required by the rotary table 13 to meet the needs of heavy-duty cutting. The connecting housing 9 itself constitutes the second dust barrier, protecting the meshing pairs of the second motor 10, pinion 11 and internal gear 12 inside. At the same time, the ventilation holes opened at the bottom of the connecting housing 9 are intended to balance the heat generated by the motor during operation and prevent overheating inside the cover. The fixed frame 4 and the movable dustproof mesh 5 allow air circulation for heat dissipation, but at the same time can physically block most of the dust from passing through, achieving a balance between heat dissipation and dust prevention. The movable dustproof mesh 5 is used for convenient periodic replacement.

[0028] The turntable assembly is mounted on two bearing seats 2 at both ends via bearings, and is sealed with rubber rings during the fit.

[0029] During use, it directly and effectively prevents external contaminants such as dust, chips, and coolant from entering the bearing and turntable transmission system through the gaps at both ends of the bearing housing. This is the first line of defense for protecting the core support and rotating components, bearings and shafts, while also ensuring that the grease inside the bearing does not leak out.

[0030] The first helical gear 7 and the second helical gear 8, as well as the pinion 11 and the internal gear 12, have the same module and pressure angle. These uniform parameters ensure the conjugate tooth profile relationship during gear meshing, preventing abnormal mechanical interference, thereby reducing vibration, noise, and abnormal wear, and guaranteeing transmission accuracy and lifespan.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A five-axis rotary table for motors with dustproof function, comprising a base plate (1), characterized in that: A rocker arm assembly is fixedly installed on the top of the base plate (1); The rocker arm assembly includes: two bearing seats (2), a dust cover (3), a fixing frame (4), a dustproof mesh (5), a first motor (6), a first helical gear (7), a second helical gear (8), and a turntable assembly; Two bearing seats (2) are fixedly installed on the left and right ends of the base plate (1), respectively. The dust cover (3) is fixedly installed on the left side of the bearing seat (2) at the left end. The dust cover (3) has a ventilation hole at the rear end. The fixing frame (4) is fixedly installed on the ventilation hole at the rear end of the dust cover (3). The dust mesh (5) is movably embedded in the fixing frame (4). The first motor (6) is fixedly installed in the dust cover (3). The first helical gear (7) is fixedly installed in the dust cover (3) and is fixedly installed on the main shaft of the first motor (6). The second helical gear (8) meshes with the first helical gear (7). The two ends of the turntable assembly are respectively movably fitted between the two bearing seats (2) through bearings, and one end of the turntable assembly is fixedly connected to the second helical gear (8).

2. A five-axis rotary table with dustproof function for motors according to claim 1, characterized in that, The turntable assembly includes: a connecting housing (9), a fixing frame (4), a dustproof mesh (5), a second motor (10), a pinion (11), an internal gear (12), and a rotating platform (13); The two ends of the connecting box (9) are respectively movably mounted between the two bearing seats (2) through bearings, and one end of the connecting box (9) is fixedly connected to the second helical gear (8). A ventilation hole is provided at the center of the bottom end of the connecting box (9). The fixing frame (4) is fixedly installed on the ventilation hole. The dustproof mesh (5) is movably embedded in the fixing frame (4). The second motor (10) is fixedly installed in the connecting box (9). The pinion (11) is movably installed in the connecting box (9) and is fixedly installed on the main shaft of the second motor (10). The internal gear (12) is movably installed on the top of the connecting box (9) through bearings and meshes with the pinion (11). The rotating table (13) is fixedly installed on the upper end of the internal gear (12).

3. A five-axis rotary table with dustproof function for motors according to claim 1, characterized in that, The first helical gear (7) and the second helical gear (8) mesh externally at a helix angle: β1 = -β2.

4. A five-axis rotary table with dustproof function for motors according to claim 3, characterized in that, The first helical gear (7) and the second helical gear (8), as well as the pinion (11) and the internal gear (12), have the same module and pressure angle.

5. A five-axis rotary table with dustproof function for motors according to claim 2, characterized in that, The dustproof mesh (5) is made of replaceable cotton pads.

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