Rotary variable-pitch positioning mechanism

Abstract

The utility model discloses a rotary variable-pitch positioning mechanism, and relates to the technical field of positioning mechanisms. The fixed bottom plate is used for supporting the whole mechanism; the system further comprises; the servo motor is fixed on the fixed bottom plate and is used for providing power; the hollow speed reducer is connected with the servo motor, and the hollow speed reducer is fixed to the top of the fixed bottom plate through bolts and used for reducing the speed and transmitting power; according to the rotary variable-pitch positioning mechanism, the hollow speed reducer is precisely controlled through the servo motor, precise rotation of the rotary arm is achieved, the rotary variable-pitch positioning mechanism is matched with the telescopic action of the air cylinder, and the problems that an existing positioning device is insufficient in precision and poor in adaptability are solved; and the floating joint is connected with the movable profiling positioning seat, so that the stability and the accuracy in the stretching and retracting process are ensured, the mechanism can meet the requirements of high-precision positioning scenes such as precise in-mold injection molding, meanwhile, the adaptability to subsequent processing equipment is improved, and the production efficiency is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of positioning mechanism technology, specifically a rotary variable pitch positioning mechanism. Background Technology

[0002] In the field of modern industrial automation, precise positioning technology is crucial for improving production efficiency and product quality. Especially in areas such as precision in-mold injection molding, automated assembly, and robotics, the demand for precise rotational and variable-distance positioning of objects is increasing.

[0003] Traditional positioning devices typically consist of fixed or simple mechanical structures, often employing a single rotational or linear movement method. However, when handling complex or variable positioning tasks, such as in precision in-mold injection molding, automated loading devices need to precisely control the rotation angle and distance of the object to adapt to the requirements of different molds. Existing technologies often cannot simultaneously achieve high-efficiency and high-precision positioning, and are not flexible enough in adapting to different mold sizes and shapes, thus failing to meet the diverse needs of industrial applications.

[0004] To address this, a rotary pitch positioning mechanism is proposed, which aims to achieve high-precision and high-efficiency positioning operations through innovative structural design and control system, while improving the flexibility and adaptability of the device to meet diverse industrial application needs. Utility Model Content

[0005] In view of the shortcomings of the prior art, this utility model provides a rotary variable pitch positioning mechanism, which solves the problem mentioned in the background art that the existing technologies often cannot achieve high efficiency and high precision positioning at the same time, making it difficult to meet the ever-changing industrial application requirements.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rotary pitch positioning mechanism, comprising;

[0007] The base plate is used to support the entire mechanism.

[0008] Also includes;

[0009] A servo motor, which is fixed to a base plate, is used to provide power;

[0010] A hollow speed reducer is connected to a servo motor. The hollow speed reducer is fixed to the top of a fixed base plate by bolts to reduce speed and transmit power.

[0011] A rotating arm, located at the top of the hollow reducer, is driven to rotate by a servo motor.

[0012] A cylinder, fixed to one end of a rotating arm, is used to drive a movable contour positioning seat to move along a linear guide rail.

[0013] A floating joint is located at the front end of the cylinder, and the floating joint is connected to a movable contour positioning seat;

[0014] The linear guide rail connects the movable contour positioning seat and the rotating arm to ensure smooth movement.

[0015] The contour positioning seat is fixed on the fixed base plate and used in conjunction with the movable contour positioning seat.

[0016] Preferably, the rotating arm and the hollow reducer are connected by a connecting shaft to ensure the stability and efficiency of power transmission.

[0017] Preferably, the cylinder is connected to the movable contour positioning seat via a floating joint to achieve the telescopic action.

[0018] Preferably, the linear guide rail is fixedly installed on the surface of the rotating arm, and the linear guide rail is slidably connected to the movable contour positioning seat to ensure the accuracy and repeatability of the positioning.

[0019] Preferably, the two ends of the rotating arm are respectively equipped with a rear limit and a front limit to limit the rotation range of the rotating arm and improve the positioning accuracy.

[0020] Preferably, the origin sensing iron plate is fixed to the fixed base plate by screws. A photoelectric sensor is provided on one side of the origin sensing iron plate, and the origin sensing iron plate is electrically connected to the photoelectric sensor to detect the position of the moving contour positioning seat, so as to ensure that the positioning can accurately reach the predetermined position each time.

[0021] This utility model provides a rotary pitch-changing positioning mechanism. It has the following beneficial effects:

[0022] (1) Improved positioning accuracy and adaptability: This rotary variable pitch positioning mechanism uses a servo motor to precisely control the hollow reducer, thereby achieving precise rotation of the rotating arm. Combined with the extension and retraction of the cylinder, it solves the problems of insufficient accuracy and poor adaptability of existing positioning devices. It is connected to the moving contour positioning seat through a floating joint, ensuring stability and accuracy during the extension and retraction process. This enables the mechanism to meet the needs of high-precision positioning scenarios such as precision in-mold injection molding, while improving the adaptability to subsequent processing equipment and significantly improving production efficiency.

[0023] (2) Enhance the stability and durability of the mechanism: The mechanism uses linear guide rails to connect the moving contour positioning seat and the rotating arm to ensure stability and repeatability during movement; the rear limit and front limit design effectively control the rotation range of the rotating arm and prevent damage caused by excessive rotation, thereby enhancing the durability of the mechanism; this structural design enables the mechanism to remain stable during long-term operation, reduces maintenance costs, and extends service life.

[0024] (3) Simplify the operation process and improve the convenience of maintenance: The rotary pitch positioning mechanism adopts a modular design, and each component is easy to disassemble and replace, which simplifies the maintenance process; the use of photoelectric sensor and origin sensing iron plate realizes automatic detection of the position of the moving contour positioning seat, reduces manual operation and simplifies the positioning process; this automated design not only improves the operating efficiency, but also reduces the operating difficulty, making equipment maintenance more convenient. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0027] Figure 3 This utility model Figure 1 Enlarged structural diagram at point B.

[0028] In the diagram, 1. Fixed base plate; 2. Rotating arm; 3. Cylinder; 4. Rear limit; 5. Floating joint; 6. Linear guide rail; 7. Contouring positioning seat; 8. Front limit; 9. Moving contouring positioning seat; 10. Photoelectric sensor; 11. Origin sensing iron plate; 12. Servo motor; 13. Hollow reducer. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1:

[0031] Please see Figure 1-3To improve positioning accuracy and adaptability, this utility model provides a technical solution: a rotary variable pitch positioning mechanism, including a fixed base plate 1 for supporting the entire mechanism; a servo motor 12 fixed on the fixed base plate 1 to provide power; a hollow reducer 13 connected to the servo motor 12 and bolted to the top of the fixed base plate 1 for speed reduction and power transmission; a rotating arm 2 located on top of the hollow reducer 13 and driven to rotate by the servo motor 12; a cylinder 3 fixed to one end of the rotating arm 2 for driving a movable contour positioning seat 9 to move along a linear guide rail 6; a floating joint 5 located at the front end of the cylinder 3 and connected to the movable contour positioning seat 9; a linear guide rail 6 connecting the movable contour positioning seat 9 and the rotating arm 2 to ensure smooth movement; and a contour positioning seat 7 fixed on the fixed base plate 1 for use in conjunction with the movable contour positioning seat 9.

[0032] The fixed base plate 1 provides stable support, and the servo motor 12 and hollow reducer 13 provide precise power transmission, enabling the rotating arm 2 to rotate precisely. Combined with the telescopic movements of the cylinder 3 and floating joint 5, and the smooth movement of the linear guide rail 6, the positioning accuracy and adaptability are effectively improved. This solves the problems of insufficient accuracy and poor adaptability of existing positioning devices, and significantly improves production efficiency and work quality.

[0033] Example 2:

[0034] Please see Figure 1-3 To enhance structural stability and durability, this utility model provides a technical solution: a rotary variable pitch positioning mechanism, wherein the rotary arm 2 is connected to the hollow reducer 13 via a connecting shaft; the cylinder 3 is connected to the movable contour positioning seat 9 via a floating joint 5 to achieve telescopic movement; the linear guide rail 6 is fixedly installed on the surface of the rotary arm 2, and the linear guide rail 6 is slidably connected to the movable contour positioning seat 9; the two ends of the rotary arm 2 are respectively equipped with a rear limit 4 and a front limit 8 to limit the rotation range of the rotary arm 2.

[0035] The direct drive of the connecting shaft, the flexible connection of the floating joint 5, the smooth sliding of the linear guide rail 6, and the effective restriction of the rear limit 4 and the front limit 8 enhance the structural stability and durability of the mechanism. These designs reduce energy loss, improve response speed and positioning accuracy, extend the service life of components, and ensure the accuracy and repeatability of the moving contour positioning seat 9 when performing variable distance positioning.

[0036] Example 3:

[0037] Please see Figure 1-3In order to simplify the operation process and improve the convenience of maintenance, this utility model embodiment provides a technical solution: a rotary pitch positioning mechanism, an origin sensing iron plate 11, which is fixed on the fixed base plate 1 by screws, a photoelectric sensor 10 is provided on one side of the origin sensing iron plate 11, and the origin sensing iron plate 11 and the photoelectric sensor 10 are electrically connected.

[0038] The electrical connection between the origin sensing iron plate 11 and the photoelectric sensor 10 enables precise detection and control of the mechanism's position. This non-contact detection method improves the sensitivity and accuracy of detection, reduces errors caused by contact wear, and ensures that the mechanism can accurately return to the origin in each working cycle, thereby improving the repeatability of positioning and the overall performance of the mechanism. At the same time, it simplifies the operation process and improves the convenience of maintenance.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A rotary pitch positioning mechanism, comprising: A fixed base plate (1) is used to support the entire mechanism. Its features are: Also includes; A servo motor (12) is fixed on a base plate (1) to provide power; A hollow reducer (13) is connected to a servo motor (12). The hollow reducer (13) is fixed to the top of the fixed base plate (1) by bolts to reduce speed and transmit power. A rotating arm (2) is located on top of a hollow reducer (13), and the rotating arm (2) is driven to rotate by a servo motor (12); Cylinder (3), which is fixed to one end of rotating arm (2), is used to drive the movable contour positioning seat (9) to move along linear guide rail (6); A floating joint (5) is located at the front end of the cylinder (3), and the floating joint (5) is connected to the movable contour positioning seat (9); A linear guide (6) connects the movable contour positioning seat (9) and the rotating arm (2) to ensure smooth movement; The contour positioning seat (7) is fixed on the fixed base plate (1) and is used in conjunction with the movable contour positioning seat (9).

2. The rotary pitch positioning mechanism according to claim 1, characterized in that: The rotating arm (2) and the hollow reducer (13) are connected by a connecting shaft.

3. The rotary pitch positioning mechanism according to claim 1, characterized in that: The cylinder (3) is connected to the movable contour positioning seat (9) via a floating joint (5) to achieve telescopic movement.

4. The rotary pitch positioning mechanism according to claim 1, characterized in that: The linear guide rail (6) is fixedly installed on the surface of the rotating arm (2), and the linear guide rail (6) is slidably connected to the movable contour positioning seat (9).

5. The rotary pitch positioning mechanism according to claim 1, characterized in that: The two ends of the rotating arm (2) are respectively equipped with a rear limit (4) and a front limit (8) to limit the rotation range of the rotating arm (2).

6. The rotary pitch positioning mechanism according to claim 1, characterized in that: The origin sensing iron plate (11) is fixed to the fixed base plate (1) by screws. A photoelectric sensor (10) is provided on one side of the origin sensing iron plate (11), and the origin sensing iron plate (11) is electrically connected to the photoelectric sensor (10).

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