Flexible rotary automatic centering mechanism

Abstract

The utility model discloses a kind of flexible rotary automatic centering mechanism, including base, rotating platform is arranged on the base, rotating platform is provided with shaft, and shaft is provided with placing disc;Two vertical cross placement grooves are provided on the placing disc, and symmetric fixed guide and floating guide are respectively provided in two placement grooves;Side plate is provided on the base, two-way clamping air cylinder is provided on the side plate, moving plate is provided on the both sides of two-way clamping air cylinder, and clamping jaw is provided on the moving plate.The utility model solves the problems of poor size compatibility, easy to damage workpiece, unable to automatically return, and lack of synergy, low efficiency in prior art centering mechanism.

Description

Technical Field

[0001] This utility model relates to the field of centering structure technology, specifically to a flexible rotary automatic centering mechanism. Background Technology

[0002] In precision machining and inspection scenarios, precise centering and rotational positioning of workpieces are required to ensure the machining accuracy or inspection accuracy of subsequent processes. Currently, the centering mechanisms used in the industry have significant shortcomings: traditional centering mechanisms are mostly designed with fixed dimensions, only suitable for single-size workpieces. Frequent fixture changes are necessary for workpieces of different sizes, resulting in cumbersome and inefficient operation; some adjustable centering mechanisms lack flexible buffer structures, making it difficult to control the clamping force and easily causing damage to the workpiece surface. Furthermore, they cannot automatically determine whether the rotation has returned to the correct position during centering, requiring manual calibration and increasing operational errors; in addition, most mechanisms have poor coordination between rotation drive and centering clamping, failing to achieve integrated "centering-rotation-positioning" operations and thus failing to meet the high-precision, high-efficiency centering requirements of workpieces of various sizes. Utility Model Content

[0003] The purpose of this invention is to provide a flexible rotary automatic centering mechanism to solve the problems of poor size compatibility, easy damage to workpieces, inability to automatically return to center, insufficient coordination and low efficiency of existing centering mechanisms.

[0004] To solve the above-mentioned technical problems, this utility model provides a flexible rotary automatic centering mechanism, including a base, a rotating platform on the base, a rotating shaft on the rotating platform, and a placement disk on the rotating shaft; the placement disk has two vertically intersecting placement slots, and symmetrical fixed guide members and floating guide members are respectively arranged in the two placement slots; the base has a side plate, and a bidirectional clamping cylinder is arranged on the side plate; both sides of the bidirectional clamping cylinder are provided with movable plates, and the movable plates are provided with grippers.

[0005] Furthermore, a servo motor is provided at the bottom of the base, and the output end of the servo motor is connected to the rotating platform.

[0006] Furthermore, mounting profiles are provided on both sides of the rotating platform, mounting plates are provided on the mounting profiles, two identification sensors are provided on the mounting plates, and four screws corresponding to the identification sensors are provided at the bottom of the rotating platform.

[0007] Furthermore, the placement tray is fixed to the rotating shaft by a pin, and the placement tray includes a guide shaft body with a spring provided on the guide shaft body, and the floating guide is connected to the guide shaft body.

[0008] Furthermore, a cylinder solenoid valve is provided on the side plate.

[0009] Furthermore, reinforcing ribs are provided between the side plate and the base.

[0010] The beneficial effects of this utility model are as follows: 1. Flexible adaptation to multiple sizes and strong compatibility: The floating guide on the placement tray is connected to the spring through the guide shaft. The spring can push the floating guide to move flexibly along the placement groove. Together with the fixed guide, it forms an adjustable centering space, which can automatically adapt to workpieces with different inner diameters and sizes. The flexible buffer of the spring can also avoid excessive clamping force from damaging the workpiece. This solves the limitation of the traditional mechanism of "one clamp for one size" and greatly improves the compatibility of the equipment.

[0011] 2. Automatic recognition and high centering accuracy: The recognition sensors on both sides of the rotary platform work in conjunction with the bottom screws. When the rotary platform drives the workpiece to rotate, the recognition sensors determine the rotation angle by detecting the position of the screws, which can automatically identify whether the workpiece has rotated back to center without manual calibration. The servo motor drives the rotary platform to adjust the speed precisely, ensuring a smooth rotation process. Combined with the symmetrical grippers of the bidirectional clamping cylinder, it achieves precise coordination between workpiece centering and rotation positioning, improving the overall centering accuracy.

[0012] 3. Sturdy structure and efficient operation: The reinforcing ribs between the side plates and the base enhance the overall rigidity of the mechanism, preventing the parts from shaking during clamping or rotation; the cylinder solenoid valve precisely controls the action of the bidirectional clamping cylinder, realizing the rapid opening and closing of the gripper. Combined with the rotation drive of the servo motor, it can complete the integrated operation of "workpiece placement - flexible centering - rotation return - stable clamping", reducing manual intervention, improving centering efficiency, and adapting to the high-efficiency production needs of precision machining, inspection and other scenarios. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective.

[0015] The following are the labels in the diagram: 1. Base; 2. Rotating platform; 3. Rotating shaft; 4. Placement plate; 5. Placement slot; 6. Fixed guide; 7. Floating guide; 8. Side plate; 9. Two-way clamping cylinder; 10. Moving plate; 11. Gripper; 12. Servo motor; 13. Mounting profile; 14. Mounting plate; 15. Identification sensor; 16. Screw; 17. Pin; 18. Guide shaft; 19. Spring; 20. Reinforcing rib. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0017] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", 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 are not intended to 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.

[0018] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0019] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0021] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0022] Reference Figures 1 to 2 As shown, an embodiment of the flexible rotary automatic centering mechanism of this utility model includes a base 1, a servo motor 12 disposed at the bottom of the base 1, a rotating platform 2 disposed on the base 1, and the output end of the servo motor 12 connected to the rotating platform 2; mounting profiles 13 are disposed on both sides of the rotating platform 2, mounting plates 14 are disposed on the mounting profiles 13, two identification sensors 15 are disposed on the mounting plates 14, and four screws 16 corresponding to the identification sensors 15 are disposed at the bottom of the rotating platform 2; The rotating platform 2 is provided with a rotating shaft 3, and a placement disk 4 is fixed on the rotating shaft 3 by a pin 17. The placement disk 4 is provided with a guide shaft 18, and a spring 19 is provided on the guide shaft 18. The placement disk 4 is provided with two vertically intersecting placement slots 5. Symmetrical fixed guide members 6 and floating guide members 7 are respectively provided in the two placement slots 5. The floating guide members 7 are connected to the guide shaft 18. The base 1 is provided with a side plate 8, and a reinforcing rib 20 is provided between the side plate 8 and the base 1. The side plate 8 is provided with a bidirectional clamping cylinder 9 and a cylinder solenoid valve. Movable plates 10 are provided on both sides of the bidirectional clamping cylinder 9, and grippers 11 are provided on the movable plates 10.

[0023] The working principle and specific operation procedure of this utility model are as follows: Step 1: Equipment Initialization and Parameter Setting: Turn on the equipment power and preset the clamping force of the bidirectional clamping cylinder 9 through the cylinder solenoid valve (adjust according to the workpiece material to avoid damage); check the alignment status of the identification sensor 15 and the bottom screw 16 of the rotating platform 2 to ensure that the sensor can accurately detect the position of the screw 16; confirm the rotation speed and angle control parameters of the servo motor 12 to ensure that the rotating platform 2 rotates smoothly; check the elasticity of the spring 19 on the placement plate 4 to ensure that the floating guide 7 can move flexibly without jamming.

[0024] Step 2, Workpiece Placement and Flexible Centering: Place the workpiece to be centered in the two vertically intersecting placement slots 5 of the placement tray 4. The workpiece is placed between the fixed guide 6 and the floating guide 7 or directly outside the floating guide 7. Since the floating guide 7 is connected to the spring 19 through the guide shaft 18, the elastic force of the spring 19 will push the floating guide 7 to automatically conform to the inner or outer wall of the workpiece. Together with the fixed guide 6, the workpiece is initially centered from four directions. The flexible buffer of the spring 19 can prevent the workpiece from being deformed by pressure, and it is suitable for workpieces with different inner diameters.

[0025] Step 3, Clamping and Reinforcement and Rotation Return: Activate the cylinder solenoid valve to control the bidirectional clamping cylinder 9. The moving plates 10 on both sides of the cylinder drive the grippers 11 to move towards the workpiece synchronously until the grippers 11 gently touch the outer wall of the workpiece, further reinforcing the centering effect (the clamping force is precisely controlled by the solenoid valve to avoid overpressure). Activate the servo motor 12 at the bottom of the base 1. The servo motor 12 drives the rotating platform 2 to slowly rotate the placement plate 4 and the workpiece. During rotation, the identification sensors 15 on the mounting plates 14 on both sides of the rotating platform 2 detect the position of the bottom screws 16 in real time. When the sensor detects the preset screw 16 alignment signal, it determines that the workpiece has been rotated back to center, and the servo motor 12 stops running, completing the automatic return to center positioning.

[0026] Step 4, Subsequent Operations and Reset: After the workpiece is centered and returned to its original position, subsequent processing and inspection operations can be carried out. After the operation is completed, start the cylinder solenoid valve, and the bidirectional clamping cylinder 9 drives the gripper 11 to reset and release the workpiece. The operator removes the workpiece. If continuous operation is required, repeat steps 2-3. If the equipment is idle for a long time, before turning off the power, the floating guide 7 can be manually pushed to check whether the spring 19 resets smoothly to ensure normal operation next time.

[0027] The above-described embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. A flexible rotary automatic centering mechanism, characterized in that, Includes a base (1), on which a rotating platform (2) is provided, on which a rotating shaft (3) is provided, and on which a placement plate (4) is provided; The placement tray (4) is provided with two vertically intersecting placement slots (5), and symmetrical fixed guides (6) and floating guides (7) are respectively provided in the two placement slots (5); The base (1) is provided with a side plate (8), and the side plate (8) is provided with a bidirectional clamping cylinder (9). The two sides of the bidirectional clamping cylinder (9) are provided with moving plates (10), and the moving plates (10) are provided with grippers (11).

2. The flexible rotary automatic centering mechanism as described in claim 1, characterized in that, The base (1) is equipped with a servo motor (12) at its bottom, and the output end of the servo motor (12) is connected to the rotating platform (2).

3. The flexible rotary automatic centering mechanism as described in claim 1, characterized in that, The rotating platform (2) is provided with mounting profiles (13) on both sides, and mounting plates (14) are provided on the mounting profiles (13). Two identification sensors (15) are provided on the mounting plates (14). Four screws (16) corresponding to the identification sensors (15) are provided at the bottom of the rotating platform (2).

4. The flexible rotary automatic centering mechanism as described in claim 1, characterized in that, The placement tray (4) is fixed to the rotating shaft (3) by a pin (17), and the placement tray (4) includes a guide shaft (18), on which a spring (19) is provided, and the floating guide (7) is connected to the guide shaft (18).

5. The flexible rotary automatic centering mechanism as described in claim 1, characterized in that, A cylinder solenoid valve is provided on the side plate (8).

6. The flexible rotary automatic centering mechanism as described in claim 1, characterized in that, A reinforcing rib (20) is provided between the side plate (8) and the base (1).

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