Rotary guiding mechanism capable of accurately positioning

Abstract

The invention discloses a rotary guiding mechanism capable of accurately positioning. The rotary guiding mechanism comprises a central shaft and a plurality of guiding arms rotatably mounted on the central shaft, the rotating platform is used for reducing the rotating speed and improving the rotating stability of the guiding arms, and the servo motor is connected with the rotating platform, provided with a brake structure and used for accurately positioning the guiding arms. The rotating platform is further provided with a fixing shaft which drives the guiding arm to rotate through a connecting piece. The servo motor with the brake structure is used for driving the guide arm to rotate, so that the positioning precision of the guide arm is improved, and the follow-up guide arm is prevented from moving; the servo motor drives the rotating platform to rotate, the rotating platform drives the fixing shaft and the center shaft to rotate, then the guiding arm is driven to rotate, the rotating speed of the guiding arm can be reduced, and the rotating stability is improved.

Description

Technical Field

[0001] The invention relates to the technical field of rotary indexing mechanisms, and in particular to a rotary indexing mechanism capable of accurate positioning. Background Art

[0002] Guidance devices are commonly used tools for passers-by in amusement parks, shopping malls and streets. To improve the convenience of use, guidance devices all use automatic rotating guidance arms. However, in the existing technology, the automatic rotating guidance arms are directly driven to rotate by servo motors. The traditional servo motors do not have brake structures and cannot accurately position the guidance arms. Moreover, the guidance arms are easily affected by external factors and move after the rotation ends, which reduces the accuracy of the guidance of the guidance arms. Therefore, a rotating guidance mechanism with precise positioning is proposed. Summary of the invention

[0003] The purpose of the present invention is to solve the above problems and to provide a rotation indexing mechanism that can be precisely positioned.

[0004] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a rotating guiding mechanism that can be precisely positioned, comprising a central axis and a plurality of guiding arms rotatably mounted on the central axis; wherein the guiding arms are each provided with a rotating platform that reduces the rotation speed and improves the rotation stability of the guiding arms, and a servo motor connected to the rotating platform and having a brake structure for precisely positioning the guiding arms; the rotating platform is also provided with a fixed axis that drives the guiding arms to rotate via a connecting piece.

[0005] Preferably, the rotating platform comprises a support frame installed in the guiding arm and a rotating table rotatably installed on the support frame.

[0006] Preferably, an origin positioning sensor sheet is installed on the rotating table; and a photoelectric sensor for identifying the origin positioning sensor sheet is installed on the supporting frame.

[0007] Preferably, a bearing seat is installed in each of the guiding arms; and a bearing fixed to the central axis is installed on the bearing seat.

[0008] Preferably, the central shaft and the fixed shaft are both provided with flange rings connected to the rotating platform.

[0009] Preferably, the central axis is a hollow structure; both the central axis and the fixed axis are provided with wire passages for facilitating wire passage with the interior of the guiding arm.

[0010] Preferably, liquid crystal display screens are installed on both sides of the guiding arms.

[0011] The beneficial effects of the present invention are as follows: by using a servo motor with a brake structure to drive the guide arm to rotate, the positioning accuracy of the guide arm is improved, and the subsequent movement of the guide arm is prevented; The servo motor drives the rotating platform to rotate, and the rotating platform drives the fixed axis and the central axis to rotate, thereby driving the guiding arm to rotate, which can reduce the rotation speed of the guiding arm and improve the rotation stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the present invention.

[0013] Figure 2 It is a partial structural schematic diagram of the present invention.

[0014] Figure 3 It is a structural schematic diagram of the central axis and the fixed axis of the present invention.

[0015] Legend: 1. Center axis; 101. Flange ring; 2. Guide arm; 201. LCD screen; 3. Rotating platform; 301. Support frame; 302. Rotating table; 303. Origin positioning sensor; 304. Photoelectric sensor; 4. Servo motor; 5. Bearing seat; 501. Bearing; 6. Fixed axis; 601. Wire opening. DETAILED DESCRIPTION

[0016] Next, we will further explain the precise positioning rotation guiding mechanism of the present invention with reference to the accompanying drawings.

[0017] It should be noted that all directional indications such as up, down, left, right, front, back, etc. in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0018] See attached Figure 1-3 As shown, in the present embodiment, a rotating guiding mechanism capable of precise positioning comprises a central axis 1 and a plurality of guiding arms 2 rotatably mounted on the central axis 1; the characteristic is that the guiding arms 2 are each provided with a rotating platform 3 for reducing the rotation speed and improving the rotation stability of the guiding arms 2, and a servo motor 4 connected to the rotating platform 3 and having a brake structure for precisely positioning the guiding arms 2; the rotating platform 3 is also provided with a fixed axis 6 for driving the guiding arms 2 to rotate via a connecting member; the guiding arms 2 are driven to rotate by using the servo motor 4 with a brake structure, thereby improving the positioning accuracy of the guiding arms 2 and preventing subsequent movement of the guiding arms 2; the rotating platform 3 is driven to rotate by the servo motor 4, and the rotating platform 3 drives the fixed axis 6 and the central axis 1 to rotate, thereby driving the guiding arms 2 to rotate, thereby reducing the rotation speed of the guiding arms 2 and improving the rotation stability.

[0019] See attached Figure 2-3As shown, the rotating platform 3 includes a support frame 301 installed in the guiding arm 2 and a rotating table 302 rotatably installed on the support frame 301; an origin positioning sensing piece 303 is installed on the rotating table 302; a photoelectric sensor 304 for identifying the origin positioning sensing piece 303 is installed on the support frame 301; by utilizing the photoelectric sensor 304 to identify the origin positioning sensing piece 303, the rotating table 302 first returns to the origin at each rotation angle and then rotates, thereby improving the rotation accuracy of the rotating table 302, and then improving the rotation accuracy of the guiding arm 2.

[0020] See attached Figure 1-3 As shown, the guiding arm 2 is also equipped with a bearing seat 5; the bearing seat 5 is equipped with a bearing 501 fixed to the central axis 1; the central axis 1 and the fixed axis 6 are both provided with a flange ring 101 connected to the rotating platform 3; the central axis 1 is a hollow structure; the central axis 1 and the fixed axis 6 are both provided with a wire opening 601 for passing wires with the inside of the guiding arm 2; the guiding arm 2 is equipped with a liquid crystal display screen 201 that can display multiple information at the same time on both sides. By setting the central axis 1 as a hollow structure and the wire opening 601 on the central axis 1 and the fixed axis 6, it is convenient for the cables and network cables connected to the liquid crystal display screen 201 on the guiding arm to pass through; by setting the liquid crystal display screen 201 on both sides of the guiding arm, it is convenient to display multiple information at the same time, which improves convenience.

[0021] During the use of the present invention, the servo motor 4 in the lowest guiding arm 2 drives the rotating table 302 on the rotating platform 3 to rotate, and at the same time reduces the rotation speed of the servo motor 4, and then the rotating table 302 drives the central axis 1 to rotate, and the central axis 1 drives the guiding arm 2 to rotate through the connecting piece, and the servo motor 4 in the upper guiding arm drives the rotating table 302 on the rotating platform 3 to rotate, and the rotating table 302 drives the fixed axis 6 to rotate along the central axis 1, and the fixed axis 6 drives the guiding arm 2 to rotate through the connecting piece, and the brake structure on the servo motor 4 can be used to accurately position the guiding arm 2; when it is necessary to rotate to other angles, the servo motor 4 drives the guiding arm 2 to rotate so that the photoelectric sensor 304 recognizes the origin positioning sensing sheet 303, rotates the guiding arm 2 to the origin, and then continues to rotate the guiding arm 2 according to the rotation angle.

[0022] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention belongs to the protection scope of the present invention.

Claims

1. A precisely positioned rotary guiding mechanism, comprising a central shaft (1) and a plurality of guiding arms (2) rotatably mounted on the central shaft (1); wherein: The guiding arm (2) is provided with a rotating platform (3) for reducing the rotation speed and improving the rotation stability of the guiding arm (2), and a servo motor (4) connected to the rotating platform (3) and having a brake structure for accurately positioning the guiding arm (2); the rotating platform (3) is also provided with a fixed shaft (6) for driving the guiding arm (2) to rotate via a connecting piece.

2. A precisely positioned rotation indexing mechanism according to claim 1, characterized in that: The rotating platform (3) comprises a support frame (301) installed in the guiding arm (2) and a rotating table (302) rotatably installed on the support frame (301).

3. A precisely positioned rotation indexing mechanism according to claim 2, characterized in that: An origin positioning sensing sheet (303) is installed on the rotating platform (302); and a photoelectric sensor (304) for identifying the origin positioning sensing sheet (303) is installed on the supporting frame (301).

4. The precisely positioned rotation indexing mechanism according to claim 1, characterized in that: A bearing seat (5) is also installed in each of the guide arms (2); a bearing (501) fixed to the central axis (1) is installed on the bearing seat (5).

5. The precisely positioned rotation indexing mechanism according to claim 1, characterized in that: The central shaft (1) and the fixed shaft (6) are both provided with flange rings (101) connected to the rotating platform (3).

6. The precisely positioned rotation indexing mechanism according to claim 5, characterized in that: The central shaft (1) is a hollow structure; both the central shaft (1) and the fixed shaft (6) are provided with a wire opening (601) for facilitating wire communication with the interior of the guiding arm (2).

7. The precisely positioned rotation indexing mechanism according to claim 1, characterized in that: The guiding arms (2) are both mounted on both sides with liquid crystal display screens (201) capable of displaying a variety of information simultaneously.

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