Revolution and rotation synchronizing mechanism for inner ring and outer ring

Abstract

The utility model discloses an inner and outer ring revolution and rotation synchronizing mechanism, which belongs to the technical field of transmission mechanisms and comprises a rotatable main shaft, a support frame and a rotating frame, the support frame is provided with a plurality of mounting seats which are uniformly distributed along the circumference of the main shaft, and the mounting seats are provided with first execution units facing the main shaft; the rotating frame can rotate along with the main shaft, a plurality of rotatable second execution units corresponding to the first execution units are arranged on the rotating frame, first gears coaxially connected with the second execution units are arranged on one sides of the second execution units, and the first gears are meshed with gear rings which are concentrically arranged on the supporting frame and provided with teeth; the first transmission wheel sleeves the main shaft and is in transmission connection with the second transmission wheel through a first transmission belt; the second transmission wheel is in transmission connection with the first execution unit. Through the structural design, opposite tools are arranged between the two execution units, meanwhile, the two execution units synchronously rotate respectively, the structure is simple, and connection is stable.

Description

TECHNICAL FIELD

[0001] The utility model relates to transmission mechanism technical field, concretely relates to a inner and outer ring revolution rotation synchronous mechanism. BACKGROUND

[0002] The synchronous transmission mechanism is the core component of guaranteeing the collaborative operation of multiple execution units, and its performance directly determines the operation precision, efficiency and stability of the equipment. Whether it is the precise assembly of electronic components, the automatic processing of automobile parts, or the high-precision docking operation in the field of aerospace, it puts forward strict requirements for the motion synchronization of the execution unit. Especially in the scene where two or more execution units need to cooperate to complete the composite action, the synchronous control technology becomes the key to improving the functional integration and operation quality of the equipment.

[0003] At present, the existing synchronous mechanisms in the industrial field mainly focus on the synchronous control of single motion form and are mainly divided into two categories: one category is the mechanism focusing on revolution synchronization, which realizes the synchronous circumferential motion of multiple execution units around the same center axis through gear meshing, chain transmission or belt transmission, etc. This kind of mechanism is widely used in rotary table assembly line, rotary indexing workbench and other equipment, but due to the limitation of structural design, it can only drive the execution unit to complete the revolution action and cannot consider the synchronous control of rotation motion; the other category is the mechanism for rotation synchronization, which ensures the consistency of the rotation speed and direction of multiple execution units by means of planetary gear system, synchronous pulley set or servo motor linkage, etc. This kind of mechanism is commonly used in multi-axis drilling machine tools, polishing equipment and other scenes that need to unify the processing posture, but it usually takes a fixed base as the installation reference and cannot realize the synchronous revolution of the execution unit around the common axis while rotating.

[0004] In actual application, more and more high-end manufacturing scenes have put forward the demand for "revolution and rotation synchronous composite motion". However, due to the limitation of structural design, the existing synchronous mechanisms cannot meet the above-mentioned composite motion demand. If the traditional revolution synchronous mechanism and the rotation synchronous mechanism are simply superimposed, not only will it result in a large overall volume and complex structure of the equipment, increasing the manufacturing and maintenance cost, but also it will cause motion interference risk and transmission delay between the two mechanisms, which cannot realize the strict synchronization of revolution and rotation, and thus affect the operation precision. In addition, although some improved synchronous mechanisms try to consider revolution and rotation, they can only realize the composite motion of a single execution unit, or cannot guarantee the consistency of the revolution track and rotation speed of the two execution units, and the applicable range is limited.

[0005] Therefore, it is necessary to develop an integrated mechanism with compact structure and stable transmission, which can realize the synchronous revolution and synchronous rotation of two execution units, solve the problems of insufficient composite motion synchronization and complex structure in the prior art, and become the direction to be broken through in the current synchronous transmission technical field. UTILITY MODEL CONTENT

[0006] The purpose of this invention is to provide a mechanism for synchronizing the inner and outer rings' revolution and rotation.

[0007] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows:

[0008] A synchronous mechanism for inner and outer ring revolution and rotation includes: a main shaft, which is rotatable;

[0009] A support frame is rotatably connected to the main shaft, and it is provided with a plurality of mounting seats evenly distributed along the circumference of the main shaft. A first execution unit is mounted on the mounting seat and facing the main shaft.

[0010] A rotating frame is concentrically connected to the main shaft and can rotate with the main shaft; the rotating frame is provided with a plurality of rotatable second execution units corresponding to the first execution unit; a first gear is provided on one side of the second execution unit and coaxially connected thereto; the first gear meshes with a toothed ring concentrically arranged on the support frame.

[0011] The first transmission wheel is sleeved on the main shaft and is connected to the second transmission wheel via a first transmission belt; the second transmission wheel is connected to the first execution unit.

[0012] Based on the above scheme and as a preferred embodiment of the above scheme, the number of the first execution units is equal to that of the second execution units.

[0013] Based on the above scheme and as a preferred embodiment of the above scheme, during the process of the second execution unit revolving from being directly opposite the first execution unit to being directly opposite the next first execution unit, the number of rotations of the second execution unit is a positive integer multiple of one.

[0014] Based on the above scheme and as a preferred embodiment, the number of the first transmission wheel and the second transmission wheel is one; the second transmission wheel is connected to the first execution unit via a shaft rotatably connected to the mounting base; the number of shafts is equal to the number of the first execution units, and each shaft corresponds to one of the first execution units; a third transmission wheel is sleeved on the shaft, and all the third transmission wheels are connected together via a second transmission belt to achieve synchronous rotation.

[0015] Based on the above scheme and as a preferred embodiment of the above scheme, a second gear is provided on one side of the first execution unit and is concentrically arranged therewith, and a third gear is sleeved on the shaft and meshes with the second gear.

[0016] Compared with the prior art, this utility model has the following advantages and beneficial effects: A first set of execution units is arranged on a support frame, and a second set of execution units opposite to the first set of execution units is arranged on a rotating frame. The second set of execution units rotates with the rotating frame, realizing the relative revolution of the two sets of execution units, so that each first set of execution units is sequentially aligned with each second set of execution units. During revolution, a first gear coaxially arranged with the second execution unit engages with a gear ring on the support frame, driving the second execution unit to rotate. Simultaneously, the first execution unit connected to the second transmission wheel rotates with the main shaft. This utility model, through structural design, enables the two sets of execution units to have relative revolution and synchronous rotation, resulting in a simple structure and stable connection. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a front view of the present utility model.

[0019] Figure 3 This is a partial structural diagram of the present utility model.

[0020] Figure 4 This is a schematic diagram of another part of the structure of this utility model.

[0021] In the diagram: 1. Main shaft; 2. Support frame; 3. Mounting base; 4. First actuating unit; 5. Rotating frame; 6. Second actuating unit; 7. First gear; 8. Gear ring; 9. First transmission wheel; 10. First transmission belt; 11. Second transmission wheel; 12. Shaft; 13. Third transmission wheel; 14. Second transmission belt; 15. Second gear; 16. Third gear. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. However, it should be understood that the accompanying drawings are for illustrative purposes only and should not be construed as limiting the present utility model. For better illustration of this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable that some well-known structures and their descriptions may be omitted in the drawings for those skilled in the art. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting the present utility model.

[0023] like Figure 1 and Figure 2 As shown, an inner and outer ring revolution and rotation synchronization mechanism includes: a main shaft 1, which is rotatable. One end of the main shaft 1 can be connected to an external drive device (motor) for transmission, thereby realizing rotation.

[0024] It also includes a support frame 2, rotatably connected to the main shaft 1, which has several mounting seats 3 evenly distributed along the circumference of the main shaft 1. A rotatable first execution unit 4, facing the main shaft 1, is mounted on each mounting seat 3. The mounting seat 3 has a rotatable shaft 12, the axis of which is perpendicular to the axis of the first execution unit 4 and parallel to the axis of the main shaft 1. Figure 4 As shown, a third gear 16 is sleeved on the end of the shaft 12. The third gear 16 meshes with the second gear 15, which is coaxially connected to the first execution unit 4 and rotates synchronously therewith, so as to realize the transmission connection between the shaft 12 and the first execution unit 4.

[0025] like Figure 3 As shown, a rotating frame 5 is mounted on the main shaft 1. The rotating frame 5 is concentrically arranged with the support frame 2 and can rotate with the main shaft 1. Several rotatable second execution units 6 corresponding to the first execution unit 4 are arranged on the rotating frame 5. The number of first execution units 4 is equal to the number of second execution units 6. Both are arranged radially along the main shaft 1 and are arranged opposite to each other.

[0026] The second execution unit 6 is provided with a first gear 7 coaxially connected to it on one side. The first gear 7 meshes with a toothed ring 8 concentrically arranged on the support frame 2. When the second execution unit 6 rotates with the rotating frame 5, the first gear 7 and the toothed ring 8 rotate, and the second execution unit 6 rotates under the drive of the first gear 7.

[0027] A first transmission wheel 9 is mounted on the main shaft 1, and the first transmission wheel 9 is connected to a second transmission wheel 11 via a first transmission belt 10. The second transmission wheel 11 is connected to a first execution unit 4. Specifically, there is one second transmission wheel 11, which is mounted on the shaft 12 corresponding to one of the first execution units 4, and can drive the shaft 12 to rotate. When the main shaft 1 rotates, it will drive the first transmission wheel 9 to rotate, and the first transmission wheel 9 will drive the second transmission wheel 11 to rotate via the first transmission belt 10. The second transmission wheel 11 will drive the shaft 12 to rotate, and the shaft 12 will drive the first execution unit 4 to rotate.

[0028] To ensure that each first execution unit 4 rotates synchronously, a third transmission wheel 13 is fitted onto the shaft 12 corresponding to each first execution unit 4. All the third transmission wheels 13 are connected together by a second transmission belt 14 to achieve synchronous rotation. When the first transmission wheel 9 drives one shaft 12 to rotate, all the shafts 12 rotate synchronously under the action of the second transmission belt 14, thereby driving all the first execution units 4 to rotate synchronously.

[0029] During the process of the second execution unit 6 revolving from being directly opposite the first execution unit 4 to being directly opposite the next first execution unit 4, the number of rotations it completes is a positive integer multiple of one. Preferably, during the process of the second execution unit 6 revolving from being directly opposite the first execution unit 4 to being directly opposite the next first execution unit 4, it completes one rotation. The first execution unit 4 and the second execution unit 6 rotate synchronously, that is, when the second execution unit 6 rotates one rotation, the first execution unit 4 also rotates one rotation.

[0030] Working process: The main shaft 1 rotates, driving the rotating frame 5 and the first transmission wheel 9 to rotate synchronously. The rotating frame 5 drives each second execution unit 6 to revolve around the main shaft 1. At the same time, through the cooperation of the first gear 7 and the gear ring 8, each second execution unit 6 is driven to rotate on its own axis. The first transmission wheel 9 drives the second transmission wheel 11 to rotate. The second transmission wheel 11 drives a shaft 12 to rotate. The remaining shafts 12 rotate synchronously with the shaft 12 under the drive of the third transmission wheel 13 and the second transmission belt 14. Each shaft 12 drives each first execution unit 4 to rotate synchronously on its own axis.

[0031] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A mechanism for synchronizing the revolution and rotation of inner and outer rings, characterized in that, include: Main shaft (1), which is rotatable; The support frame (2) is rotatably connected to the main shaft (1), and is provided with a plurality of mounting seats (3) evenly distributed along the circumference of the main shaft (1). A first execution unit (4) is mounted on the mounting seat (3) facing the main shaft (1). A rotating frame (5) is concentrically connected to the main shaft (1) and can rotate with the main shaft (1); a plurality of rotatable second execution units (6) corresponding to the first execution unit (4) are provided on the rotating frame (5); a first gear (7) is coaxially connected to one side of the second execution unit (6); the first gear (7) meshes with a toothed ring (8) concentrically arranged on the support frame (2); The first transmission wheel (9) is fixedly sleeved on the main shaft (1) and is connected to the second transmission wheel (11) via the first transmission belt (10); the second transmission wheel (11) is connected to the first execution unit (4).

2. The inner and outer ring revolution and rotation synchronization mechanism according to claim 1, characterized in that, The number of the first execution unit (4) is equal to the number of the second execution unit (6).

3. The inner and outer ring revolution and rotation synchronization mechanism according to claim 1, characterized in that, During the process of the second execution unit (6) rotating from being directly opposite the first execution unit (4) to being directly opposite the next first execution unit (4), the number of rotations is a positive integer multiple of one.

4. The inner and outer ring revolution and rotation synchronization mechanism according to claim 1, characterized in that, The number of the first transmission wheel (9) and the second transmission wheel (11) is one; the second transmission wheel (11) is connected to the first execution unit (4) by a shaft (12) rotatably connected to the mounting base (3); the number of shafts (12) is equal to that of the first execution unit (4), and they correspond one-to-one with the first execution unit (4); a third transmission wheel (13) is sleeved on the shaft (12), and all the third transmission wheels (13) are connected together by a second transmission belt (14) to achieve synchronous rotation.

5. The inner and outer ring revolution and rotation synchronization mechanism according to claim 4, characterized in that, The first execution unit (4) is provided with a second gear (15) connected to and concentrically arranged on one side, and a third gear (16) that meshes with the second gear (15) is sleeved on the shaft (12).

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