A turntable structure

Abstract

The utility model relates to a rotary table structure field discloses a rotary table structure, including C axle rotary table and B axle rotary table, C axle rotary table is assembled with the bridge board, and the bridge board is connected with B axle rotary table output shaft axle, the outside of bridge board is equipped with several groups of auxiliary stabilizing mechanism, and the stabilizing mechanism includes the connecting portion and the annular portion, and the annular portion is coaxial with B axle rotary table output shaft, and the connecting portion is connected with the bridge board, to be stable to the radial direction of bridge board under big load. The utility model puts forward a kind of rotary table structure, can independently select and match general C axle and B axle rotary table, break the traditional external purchase limit, reduce the period of shrinkage, modular design can also quickly change fault module, reduce dimension maintenance;Second, double shaft is rigidly connected through bridge board, auxiliary stabilizing mechanism forms radial constraint, can offset shaking under big load, and guarantee processing accuracy;Three are the design of 'liquid damping+ magnetic drive disturbance flow', can suppress vibration and radiate heat, prolong service life.

Description

Technical Field

[0001] This utility model relates to the field of turntable structure technology, and more specifically, to a convenient turntable structure. Background Technology

[0002] The widespread adoption of five-axis machine tools has driven a surge in demand for rotary tables, but the traditional "outsourcing of complete machines" model has reached a stalemate: the rotary table dimensions and interfaces provided by suppliers are completely fixed. Faced with customers' ever-changing processing space and load requirements, manufacturers can only customize at high prices, extending the delivery cycle from 4 weeks to 12 weeks. The procurement cost increases by more than 30% instantly, and the product competitiveness is eroded by both delivery and premium. Utility Model Content

[0003] This utility model provides a turntable structure that solves the technical problem of difficulties in subsequent maintenance and use caused by the integrated design of turntable structures in related technologies.

[0004] This utility model provides a turntable structure, including a C-axis turntable and a B-axis turntable. A bridge plate is mounted on the C-axis turntable, and the bridge plate is shaft-connected to the output shaft of the B-axis turntable. The bridge plate is equipped with several sets of auxiliary stabilizing mechanisms on its exterior. The auxiliary stabilizing mechanisms include a connecting part and a ring part. The ring part is coaxial with the output shaft of the B-axis turntable, and the connecting part is connected to the bridge plate to stabilize the bridge plate in the radial direction under heavy load.

[0005] As a further optimization of this utility model, the annular part includes an annular body, and the annular body is fixedly connected to the B-axis turntable.

[0006] As a further optimization of this utility model, the connecting part includes a stop rod and a rotating component. One end of the stop rod is detachably connected to the bridge plate, and the other end is rolledly connected to the inner circumference of the ring through the rotating component.

[0007] As a further optimization of this utility model, the rotating component includes a rotating roller, and the rotating roller is rotatably sleeved on the end of the abutment rod.

[0008] As a further optimization of this utility model, the abutment is connected to the bridge plate by a mounting plate, bolts and nuts.

[0009] As a further optimization of this utility model, an annular cavity is formed inside the ring body, and the annular cavity is filled with liquid.

[0010] As a further optimization of this utility model, a turbulence mechanism is slidably arranged inside the annular cavity, and an outer magnetic block is provided on the abutment rod so that when the abutment rod rotates, the outer magnetic block drives the turbulence mechanism to move synchronously around the annular cavity and turbulence.

[0011] As a further optimization of this utility model, the turbulence mechanism includes a sliding plate and an inner magnetic block. The sliding plate is slidably sleeved in the annular cavity and fixed with the inner magnetic block. The inner magnetic block and the outer magnetic block have opposite magnetic properties.

[0012] As a further optimization of this utility model, the middle part of the slide plate is rotatably connected to an axial flow blade via a rotating ring.

[0013] The beneficial effects of this utility model are as follows: 1. The rotary table structure described in this utility model, on the one hand, through independent design and assembly, allows for the targeted selection of C-axis and B-axis rotary tables based on the structural characteristics of the machine tool and the actual processing needs of customers. This not only accurately matches the processing scenario but also flexibly responds to customer price demands, breaking the limitations of fixed configurations under the traditional "outsourced whole machine" model, giving the machine tool a greater advantage in market competition through customization. On the other hand, both the C-axis and B-axis rotary tables are general-purpose components, with a wide range of alternative brands and vendors available on the market. This not only significantly reduces procurement costs but also shortens the delivery cycle, avoiding the problem of traditional customized rotary table procurement costs increasing by 30% and delivery cycles extending to 12 weeks, further enhancing the product's cost-effectiveness. Furthermore, compared to the drawbacks of traditional integrated five-axis rotary tables requiring complete disassembly and troubleshooting after a failure, which are time-consuming and labor-intensive, this rotary table is assembled from modular components. When a module fails, there is no need to rely on third-party repairs; simply replacing the faulty module quickly restores equipment operation, significantly reducing maintenance costs and improving maintenance efficiency, comprehensively ensuring the machine tool's market competitiveness and cost-effectiveness.

[0014] 2. The turntable structure described in this utility model has a C-axis turntable and a B-axis turntable rigidly connected by a bridge plate, ensuring basic stability during workpiece rotation and adjustment. At the same time, the auxiliary stabilizing mechanism outside the bridge plate forms a radial constraint through a "connecting part + ring part"—one end of the abutment of the connecting part is fixed to the bridge plate, and the other end rolls with the inner circumference of the ring body through a rotating roller. The ring body is coaxially fixed with the B-axis turntable, forming a ring support structure around the bridge plate. When subjected to a large load, the abutment can transmit the radial force of the bridge plate to the ring body, and the rigid support of the ring body can counteract the swaying tendency and avoid machining errors caused by bridge plate offset.

[0015] 3. The turntable structure described in this utility model achieves vibration suppression and efficient heat dissipation simultaneously through a composite design of "liquid damping + magnetic drive turbulence". This overcomes the limitations of traditional turntables, which suffer from short lifespans due to vibration wear and high-temperature aging. The annular cavity inside the ring body is filled with liquid. When the device vibrates during operation, the internal friction between liquid molecules forms basic damping, reducing vibration transmission. At the same time, when the outer magnetic block on the abutment rotates with the bridge plate, it attracts the inner magnetic block and the sliding plate in the annular cavity through the attraction of opposite magnetic poles. The sliding plate pushes the liquid to form turbulence, enhancing the damping effect. The axial flow blades on the sliding plate rotate under the impact of the liquid, further intensifying liquid convection and accelerating the dissipation of heat generated by friction in the ring body. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a turntable structure proposed in this utility model.

[0017] Figure 2 This is a schematic diagram of the C-axis turntable in the turntable structure proposed in this utility model.

[0018] Figure 3 This is a side sectional view of the ring structure in a turntable structure proposed in this utility model.

[0019] In the picture: 1. C-axis rotary table; 2. B-axis rotary table; 3. Bridge plate; 4. Auxiliary stabilizing mechanism; 41. Ring body; 42. Support rod; 43. Rotating roller; 44. Mounting plate; 5. Aerodynamic spoiler; 51. Slide plate; 52. Inner magnetic block; 53. Rotary ring; 54. Axial flow blade; 6. External magnetic block. Detailed Implementation

[0020] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, features described in some examples may be combined in other examples.

[0021] Example 1 like Figures 1 to 3 As shown in the figure, a turntable structure according to an embodiment of the present invention includes a C-axis turntable 1 and a B-axis turntable 2. A bridge plate 3 is mounted on the C-axis turntable 1, and the bridge plate 3 is axially connected to the output shaft of the B-axis turntable 2. The bridge plate 3 is provided with several sets of auxiliary stabilizing mechanisms 4. The auxiliary stabilizing mechanism 4 includes a connecting part and an annular part. The annular part is coaxial with the output shaft of the B-axis turntable 2, and the connecting part is connected to the bridge plate 3 to stabilize the bridge plate 3 in the radial direction under heavy load.

[0022] When the device is working, the B-axis rotary table 2 drives the bridge plate 3 connected to it to rotate around the output shaft axis of the B-axis rotary table 2 through the output shaft, so as to realize the angle adjustment of the workpiece in the vertical direction. The two work together to meet the requirements of multi-directional rotation of the workpiece in five-axis machining. When the device is subjected to a large load, the bridge plate 3 is prone to swaying or deviating in the radial direction. Since the connecting part is connected to the bridge plate 3 and the annular part is coaxial with the output shaft of the B-axis rotary table 2, the connecting part can transmit the radial force of the bridge plate 3 to the annular part. The annular part, through its coaxiality with the output shaft of the B-axis rotary table 2, constrains the radial displacement of the bridge plate 3, effectively counteracts the radial swaying tendency of the bridge plate 3 under a large load, ensures the stability of the bridge plate 3 and the workpiece during the machining process, avoids the decrease in machining accuracy due to the swaying of the bridge plate 3, and solves the problem of insufficient stability of traditional rotary tables under a large load.

[0023] Specifically, the annular portion includes an annular body 41, and the annular body 41 is fixedly connected to the B-axis rotary table 2.

[0024] After the ring body 41 is fixedly connected to the B-axis turntable 2, it can form a stable integral structure with the B-axis turntable 2, ensuring that the ring body 41 always remains coaxial with the output shaft of the B-axis turntable 2, and will not change its position or coaxiality due to vibration or external impact during the operation of the device. When the connecting part of the auxiliary stabilizing mechanism 4 transmits the radial force of the bridge plate 3 to the ring body 41, since the ring body 41 is fixed with the B-axis turntable 2, the B-axis turntable 2 can serve as a stable support base, providing sufficient support force for the ring body 41 to resist the radial force, and further enhancing the stabilizing effect of the bridge plate 3 in the radial direction.

[0025] The connecting part includes a stop rod 42 and a rotating component. One end of the stop rod 42 is detachably connected to the bridge plate 3, and the other end is rolledly connected to the inner circumference of the ring body 41 through the rotating component.

[0026] One end of the abutment rod 42 is detachably connected to the bridge plate 3, which facilitates disassembly, replacement or installation when the abutment rod 42 is damaged or needs to be adjusted, reducing maintenance difficulty and cost. When the bridge plate 3 is driven by the C-axis turntable 1 or the B-axis turntable 2, the bridge plate 3 will drive the abutment rod 42 to rotate synchronously. The other end of the abutment rod 42 is rolledly connected to the inner circumference of the ring body 41 through a rotating part. Compared with the sliding connection, this rolling connection method can greatly reduce the friction between the abutment rod 42 and the inner circumference of the ring body 41. The inner circumference of the ring body 41 is coated with lubricating oil during use.

[0027] Specifically, the rotating component includes a rotating roller 43, which is rotatably sleeved on the end of the abutment 42. The relative motion between the rotating roller 43 and the inner circumference of the ring 41 changes from sliding to rolling. The rolling friction coefficient is much smaller than the sliding friction coefficient, which can minimize the frictional resistance and wear between the two.

[0028] The abutment 42 is connected to the bridge plate 3 via mounting plate 44, bolts, and nuts.

[0029] Mounting plate 44 increases the contact area between the abutment rod 42 and the bridge plate 3, allowing the force transmitted from the abutment rod 42 to the bridge plate 3 to be more evenly distributed on the bridge plate 3. This avoids local stress concentration on the bridge plate 3 due to single-point connection or small-area contact between the abutment rod 42 and the bridge plate 3, preventing deformation or damage to the bridge plate 3 due to long-term stress concentration. The bolt and nut connection method enables a detachable and secure connection between the abutment rod 42 and the bridge plate 3. When it is necessary to disassemble the abutment rod 42, simply loosen the bolts and nuts. The operation is simple and quick, facilitating the later maintenance, replacement, or adjustment of the installation position of the abutment rod 42, and improving the maintenance convenience and flexibility of the device.

[0030] The ring body 41 forms an annular cavity inside, and the annular cavity is filled with liquid, which is oil. The liquid in the annular cavity can also play a certain role in cooling the ring body 41. When the ring body 41 generates heat due to friction or other reasons, the liquid can absorb the heat and dissipate it through the annular cavity wall, preventing the ring body 41 from being damaged due to overheating.

[0031] Example 2 Based on Embodiment 1, a turbulence mechanism 5 is slidably arranged inside the annular cavity, and an outer magnetic block 6 is provided on the abutment rod 42 so that when the abutment rod 42 rotates, the outer magnetic block 6 drives the turbulence mechanism 5 to move synchronously around the annular cavity and turbulence. The turbulence mechanism 5 includes a sliding plate 51 and an inner magnetic block 52. The sliding plate 51 is slidably sleeved in the annular cavity and fixed with the inner magnetic block 52. The inner magnetic block 52 and the outer magnetic block 6 have opposite magnetic properties.

[0032] The inner magnetic block 52 and the outer magnetic block 6 have opposite magnetic properties. According to the principle of attraction between opposite magnetic poles, when the outer magnetic block 6 rotates with the push rod 42, it will generate a continuous and stable attraction force on the inner magnetic block 52 in the annular cavity. Since the inner magnetic block 52 is fixedly connected to the slide plate 51 and the slide plate 51 is slidably fitted in the annular cavity, under the action of the attraction force, the inner magnetic block 52 will drive the slide plate 51 to move synchronously with the outer magnetic block 6 along the annular cavity. During the movement of the slide plate 51 in the annular cavity, its plate-like structure can contact the liquid in the cavity and generate a disturbance effect on the liquid. The movement of the slide plate 51 will promote the flow of liquid, thereby improving the damping capacity of the liquid and more effectively reducing the shaking or vibration of the bridge plate 3. In addition, the structural design of the slide plate 51 being slidably fitted in the annular cavity can ensure that the slide plate 51 always moves along the axis of the annular cavity, avoiding the slide plate 51 from deviating or getting stuck during the movement, and ensuring the stability and reliability of the turbulence mechanism 5. The magnetic connection between the inner magnetic block 52 and the outer magnetic block 6 enables power transmission without any mechanical contact, avoiding wear and noise caused by mechanical transmission, extending the service life of the turbulence mechanism 5, and making the device operate more smoothly and quietly.

[0033] Furthermore, the middle part of the slide plate 51 is rotatably connected to an axial flow blade 54 via a swivel ring 53.

[0034] When the slide plate 51 moves within the annular cavity, it drives the axial flow blades 54 to move synchronously. At the same time, the disturbed liquid within the annular cavity will exert an impact force on the axial flow blades 54 during the flow process. Since the axial flow blades 54 are rotatably connected to the slide plate 51 through the rotating ring 53, under the action of the liquid impact force, the axial flow blades 54 will rotate freely around the axis of the rotating ring 53. The rotation of the axial flow blades 54 will further aggravate the degree of liquid disturbance, improve the uniformity of the liquid, and assist in cooling the ring body 41 to reduce the wear of the rotating roller 43 and the ring body 41 due to excessive temperature.

[0035] The embodiments of the present utility model have been described above, but the present embodiments are not limited to the specific implementation methods described above. The specific implementation methods described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present embodiments, all of which are within the protection scope of the present embodiments.

Claims

1. A turntable structure, comprising a C-axis turntable (1) and a B-axis turntable (2), characterized in that: A bridge plate (3) is mounted on the C-axis rotary table (1), and the bridge plate (3) is shaft-connected to the output shaft of the B-axis rotary table (2); The bridge plate (3) is provided with several sets of auxiliary stabilizing mechanisms (4). The auxiliary stabilizing mechanism (4) includes a connecting part and a ring part. The ring part is coaxial with the output shaft of the B-axis turntable (2), and the connecting part is connected to the bridge plate (3) to stabilize the bridge plate (3) in the radial direction under heavy load.

2. The turntable structure according to claim 1, characterized in that: The annular part includes an annular body (41), and the annular body (41) is fixedly connected to the B-axis turntable (2).

3. The turntable structure according to claim 2, characterized in that: The connecting part includes a stop rod (42) and a rotating part. One end of the stop rod (42) is detachably connected to the bridge plate (3), and the other end is rolledly connected to the inner circumference of the ring body (41) through the rotating part.

4. The turntable structure according to claim 3, characterized in that: The rotating component includes a rotating roller (43), which is rotatably mounted on the end of the abutment (42).

5. A turntable structure according to claim 3, characterized in that: The abutment (42) is connected to the bridge plate (3) via the mounting plate (44), bolts and nuts.

6. A turntable structure according to claim 2, characterized in that: The interior of the ring body (41) forms an annular cavity, and the interior of the annular cavity is filled with liquid.

7. A turntable structure according to claim 6, characterized in that: The annular cavity is equipped with a turbulence mechanism (5) that slides inside. The abutment (42) is provided with an outer magnetic block (6) so that when the abutment (42) rotates, the turbulence mechanism (5) moves synchronously around the annular cavity through the outer magnetic block (6) and turbulences.

8. A turntable structure according to claim 7, characterized in that: The turbulence mechanism (5) includes a slide plate (51) and an inner magnetic block (52). The slide plate (51) is slidably fitted inside the annular cavity and fixed with the inner magnetic block (52). The inner magnetic block (52) and the outer magnetic block (6) have opposite magnetic properties.

9. A turntable structure according to claim 8, characterized in that: The middle part of the slide (51) is rotatably connected to an axial flow blade (54) via a swivel ring (53).

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