A turntable

Abstract

The utility model discloses a rotary table. The utility model discloses a ring track, workstation and conveying equipment are provided with the rotating framework on the ring track, the top fixed connection conveying equipment of rotating framework, and rotating framework and conveying equipment rotate on the ring track, and the workstation is fixedly connected to the four around of rotating framework. Through the utility model, the problem that the conventional rotary table cannot be used as manual operation station in the related art is solved.

Description

Technical Field

[0001] This utility model relates to the field of conveying equipment technology, and in particular to a turntable. Background Technology

[0002] Automotive assembly lines typically transport various automotive parts (workpieces), such as car bodies, doors, and batteries. When encountering turns during transport, corresponding turntables are needed for transfer. Current turntables cannot be used as manual operation stations. This is because when the line stops, operators need to stand outside the turntable, which is too far from the workpiece and therefore unsuitable for manual operation. Furthermore, traditional turntables are heavier and more expensive.

[0003] Therefore, the technical problem that traditional rotary tables cannot be used as manual operation stations in related technologies has not yet been effectively solved. Utility Model Content

[0004] The purpose of this invention is to provide a turntable to solve the problem that traditional turntables in related technologies cannot be used as manual operation stations.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A turntable includes a circular track, a worktable, and a conveying device. A rotating frame is provided on the circular track, and the top of the rotating frame is fixedly connected to the conveying device. The rotating frame and the conveying device rotate on the circular track, and the worktable is fixedly connected to the four sides of the rotating frame.

[0006] Further configuration: The bottom of the circular track is provided with multiple bases for supporting the circular track.

[0007] Further configuration: An anti-overrun device is provided at the bottom of the circular track.

[0008] Further configuration: An auxiliary cylinder is provided at the bottom of the annular track.

[0009] Further configuration: a central slewing bearing is fixedly connected to the ground, and the center of rotation of the central slewing bearing is located at the center of the circular track; a rotating gear is rotatably connected to the central slewing shaft.

[0010] A further feature is provided: a base plate is provided in the middle of the rotating frame.

[0011] A further configuration is provided: a rotating gear is fixedly connected to the center of the base plate.

[0012] Further configuration: A motor is fixedly connected to the base plate, and the motor is used to drive the rotating gear to rotate.

[0013] A further feature is provided: a workpiece positioning cylinder is installed at the bottom center of the conveying equipment.

[0014] Further configuration: Two auxiliary support wheels are provided at each of the front and rear ends of the conveying equipment.

[0015] Compared with the prior art, the beneficial technical effects of this utility model are as follows: The circular track features multiple bases at its bottom to evenly distribute the system's total load, preventing track deformation and ground subsidence. Combined with an adjustable height design, the track's levelness error is controlled within 0.1mm / m, providing a stable reference for upper-level movement. A central slewing bearing is concentrically positioned with the circular track, and together with the motor and rotating gear integrated into the base plate, a rigid transmission chain is constructed. This results in high transmission efficiency and minimal rotational angle error, achieving high-precision centrifugal motion. An anti-overtravel device precisely locks the 180° rotation stroke, preventing overtravel and avoiding production interruptions due to misalignment. A central positioning cylinder at the bottom of the conveyor rigidly fixes the workpiece with adjustable clamping force, counteracting centrifugal force and controlling workpiece sway to ensure operational and docking accuracy. The conveyor's double-end auxiliary support wheels form a four-point symmetrical support, distributing the pallet and load weight, adapting to light, heavy, and irregularly shaped pallets. Combined with a rolling friction design, this extends the lifespan of both the pallet and the equipment.

[0016] The overall system improves production line cycle efficiency, reduces maintenance costs, increases site utilization, and adapts to the needs of multi-variety production through the synergistic effect of "basic stability, precise transmission, reliable control, and load adaptation". Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a top view of the present invention; Figure 3 This is the left view of the present invention; Figure 4 This is a schematic diagram of the structure of the annular track and rotating frame of this utility model; Figure 5 This is a schematic diagram of the structure of the motor and the central rotary bearing.

[0019] Reference numerals in the attached drawings: 1. Conveying equipment; 2. Workbench; 3. Circular track; 4. Auxiliary cylinder; 5. Anti-overrun device; 6. Auxiliary support wheel; 7. Workpiece positioning cylinder; 8. Rotary frame; 9. Motor; 10. Central slewing bearing. Detailed Implementation

[0020] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Example

[0023] Reference Figures 1-4 This utility model discloses a turntable, which includes: a ring track 3, a worktable 2 and a conveying device 1. A rotating frame 8 is provided on the ring track 3. The top of the rotating frame 8 is fixedly connected to the conveying device 1. The rotating frame 8 and the conveying device 1 rotate on the ring track 3. The worktable 2 is fixedly connected to the four sides of the rotating frame 8.

[0024] Specifically, the central slewing bearing 10 is fixed to the ground, and a rotating gear is fixed to the output shaft of the motor 9. After the motor 9 is driven, the gear on the motor 9 shaft can rotate around the central slewing bearing 10. At this time, the motor 9 and the gear shaft of the motor 9 rotate together around the center. At the same time, because the motor 9 is fixed on the rotating frame 8, the rotating frame 8 ultimately rotates synchronously. Furthermore, workbenches 2 are set around the rotating frame 8, which can serve as manual operation stations, reducing the distance between the operator and the workpiece, and allowing the operator to stand on the turntable to operate.

[0025] Further configuration: The bottom of the circular track 3 is provided with multiple bases for supporting the circular track 3.

[0026] Specifically, multiple bases (usually evenly distributed along the circumference of the track) can break down the load into several smaller loads, ensuring that the track always maintains its designed circular profile, reducing the risk of metal fatigue and permanent deformation, and extending the track's service life. The bases are height-adjustable, allowing for fine-tuning to ensure the turntable's stability.

[0027] Further configuration: The bottom of the circular track 3 is equipped with an anti-overrun device 5.

[0028] Specifically, since the turntable only needs to rotate 180°, an anti-overrun device 5 is required to prevent the turntable from rotating excessively.

[0029] Specifically, if the turntable rotates more than 180° (e.g., 190°), the worktables 2 around it and the conveyor equipment 1 on top will deviate from their preset docking positions (e.g., the conveyor equipment 1 cannot be aligned with the downstream conveyor belt, or the worktables 2 are misaligned from the fixed positions for manual operation), resulting in workpieces not being able to be transferred normally and abnormal manual operation distances. The anti-overrunning device 5 can accurately trigger locking when the turntable reaches 180°, ensuring the spatial matching of upstream and downstream processes.

[0030] Further configuration: An auxiliary cylinder 4 is provided at the bottom of the annular track 3.

[0031] Specifically, when there is a deviation of less than 180° after the turntable rotates, fine adjustment is made by the auxiliary cylinder 4. The top of the auxiliary cylinder 4 is provided with a positioning column connected to the rotating shaft, and the bottom of the rotating frame 8 is provided with an auxiliary positioning hole. After the rotation is completed, the auxiliary cylinder 4 is lifted up, and the positioning column is inserted into the auxiliary positioning hole to complete accurate rotation positioning.

[0032] Further configuration includes: a central slewing bearing 10 fixedly connected to the ground, with its rotation center located at the center of the annular track 3; a rotating gear rotatably connected to the central slewing shaft. A base plate is provided in the middle of the rotating frame 8. The rotating gear is fixedly connected to the center of the base plate. A motor 9 is fixedly connected to the base plate, driving the rotating gear to rotate.

[0033] Specifically, the rotation center of the central slewing bearing 10 coincides with the center of the annular track 3, forming a dual constraint of "central positioning + outer ring guidance": the central slewing bearing 10 defines the "rotation axis" of the rotating frame 8, and the annular track 3 supports the "outer circumferential movement" of the rotating frame 8. The two work together to ensure that the rotating frame 8 always moves along the preset annular trajectory, completely avoiding "eccentric rotation". All moving parts rotate around the central slewing bearing 10, and the worktable 2 can be evenly arranged around the rotating frame 8. When an operator stands outside the annular track 3, the distance to each workstation is completely consistent (no difference in distance), eliminating the need for frequent position changes and improving work efficiency.

[0034] Further configuration: A workpiece positioning cylinder 7 is provided at the bottom center of the conveying device 1.

[0035] Specifically, when the workpiece is placed, it is fixed in place by the workpiece positioning cylinder 7 to prevent shaking. During rotation, the workpiece may tend to "shift outward" or "shake up and down" due to centrifugal force. The positioning cylinder forms a constraint in the opposite direction of the centrifugal force, ensuring that the workpiece always fits the preset position of the conveyor 1 without any loosening or displacement. If the conveyor 1 needs to dock with upstream or downstream equipment (such as a feeding conveyor belt or a discharging chute), even a slight offset of the workpiece may cause "dock jamming" (such as the workpiece not being able to accurately enter the next device). The positioning cylinder fixes the workpiece at the "absolute center / preset coordinates" through center positioning (aligning with the workpiece reference surface or positioning hole), ensuring positional consistency during conveying and eliminating docking failures.

[0036] Further configuration: two auxiliary support wheels 6 are provided at each of the front and rear ends of the conveying device 1.

[0037] Specifically, the auxiliary support wheels 6 are used to support the pallets and other equipment placed on the conveying equipment 1. The conveying equipment 1 rotates along the circular track 3 with the rotating frame 8 (or rotates in 180° increments), and the pallet will "slide back and forth" or "tilt left and right" due to centrifugal force and inertia. The support wheels at the front and rear ends can form "physical limits" from both ends of the pallet, restricting its movement along the conveying direction; the two support wheels at each end (symmetrical left and right) can constrain the lateral displacement of the pallet and avoid unilateral tilting.

[0038] Reference Figure 5 The output shaft gear of motor 9 meshes with the rotating gear of the central slewing bearing 10.

[0039] The working principle and beneficial effects of this utility model are as follows: The circular track 3 features multiple bases at its bottom that evenly distribute the system's total load, preventing track deformation and ground subsidence. Combined with an adjustable height design, the track's levelness error is controlled within 0.1mm / m, providing a stable reference for upper-level movement. The central rotary bearing 10 is concentrically positioned with the circular track 3, and together with the motor 9 integrated into the base plate and rotating gears, forms a rigid transmission chain. This results in high transmission efficiency and minimal rotational angle error, achieving high-precision centrifugal motion. The anti-overtravel device 5 precisely locks the 180° rotation stroke, preventing overtravel and avoiding production interruptions due to misalignment. The bottom center positioning cylinder of the conveyor device 1 rigidly fixes the workpiece with adjustable clamping force, counteracting centrifugal force and controlling workpiece sway, ensuring operational and docking accuracy. The double-end auxiliary support wheels 6 of the conveyor device 1 form a four-point symmetrical support, distributing the pallet and load weight, adapting to light, heavy, and irregularly shaped pallets. Combined with a rolling friction design, this extends the lifespan of both the pallet and the equipment.

[0040] The overall system improves production line cycle efficiency, reduces maintenance costs, increases site utilization, and adapts to the needs of multi-variety production through the synergistic effect of "basic stability, precise transmission, reliable control, and load adaptation".

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A turntable, characterized in that, include: The ring track (3), the workbench (2) and the conveying device (1) are provided. A rotating frame (8) is provided on the ring track (3). The top of the rotating frame (8) is fixedly connected to the conveying device (1). The rotating frame (8) and the conveying device (1) rotate on the ring track (3). The workbench (2) is fixedly connected around the rotating frame (8).

2. A turntable according to claim 1, characterized in that, include: The bottom of the annular track (3) is provided with multiple bases for supporting the annular track (3).

3. A turntable according to claim 1, characterized in that, include: The bottom of the circular track (3) is provided with an anti-overrun device (5).

4. A turntable according to claim 1, characterized in that, include: An auxiliary cylinder (4) is provided at the bottom of the annular track (3).

5. A turntable according to claim 1, characterized in that, include: A central slewing bearing (10) is fixedly connected to the ground, and the rotation center of the central slewing bearing (10) is located at the center of the annular track (3); A rotating gear is rotatably connected to the central rotating shaft.

6. A turntable according to claim 5, characterized in that, include: A base plate is provided in the middle of the rotating frame (8).

7. A turntable according to claim 6, characterized in that, include: The rotating gear is fixedly connected to the center of the base plate.

8. A turntable according to claim 6, characterized in that, include: A motor (9) is fixedly connected to the base plate, and the motor (9) is used to drive the rotating gear to rotate.

9. A turntable according to claim 1, characterized in that, include: The conveying device (1) is provided with a workpiece positioning cylinder (7) at the bottom center.

10. A turntable according to claim 1, characterized in that, include: The conveying device (1) is equipped with two auxiliary support wheels (6) at each of its front and rear ends.

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