An indexing rotary positioning platform mechanism

Abstract

The utility model discloses a kind of index rotation positioning platform mechanisms, including base plate and top plate, rotatable carousel is provided on the base plate, the top plate is fixed on carousel, the outer circumferential surface of carousel is provided with multiple arc grooves, the lateral of carousel is provided with connecting rod, one end of connecting rod is rotatably arranged on base plate by pin shaft, the middle part of connecting rod is provided with the roller mounting seat that extends to carousel, roller is installed on the roller mounting seat, tension spring mounting rod is provided on the base plate, tension spring is installed on the tension spring mounting rod, one end of tension spring is fixed on tension spring mounting rod, the other end of tension spring is fixed on the other end of connecting rod, tension spring holds the other end of connecting rod when not under external force and the roller is located in the arc groove of carousel. The utility model's index rotation positioning platform mechanism can be manually operated, and it is simple in structure, convenient to operate, and low in manufacturing cost.

Description

Technical Field

[0001] This utility model relates to an indexing rotary positioning platform mechanism. Background Technology

[0002] In machining, automated production, and other fields, it is often necessary to perform rotary positioning operations on components, including indexing positioning at 60-degree or 90-degree intervals, to facilitate subsequent operations. Existing rotary positioning mechanisms mostly rely on motor drives combined with sensor positioning. These motor-sensor combinations are costly, structurally complex, and unusable in simple tooling scenarios without power supply. Therefore, it is necessary to develop a simple, manually operable indexing positioning mechanism. Utility Model Content

[0003] The main technical problem solved by this utility model is to provide an indexing rotary positioning platform mechanism, which can be manually operated, has a simple structure, is easy to operate, and has low manufacturing cost.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A rotary positioning platform mechanism is provided, comprising a base plate and a top plate. A rotatable turntable is provided on the base plate, and the top plate is fixed on the turntable. Multiple arc-shaped grooves are provided on the outer circumferential surface of the turntable. A connecting rod is provided on the side of the turntable, one end of which is rotatably mounted on the base plate via a pin. A roller mounting seat extending towards the turntable is provided in the middle of the connecting rod, and a roller is mounted on the roller mounting seat. A tension spring mounting rod is provided on the base plate, and a tension spring is mounted on the tension spring mounting rod. One end of the tension spring is fixed to the tension spring mounting rod, and the other end of the tension spring is fixed to the other end of the connecting rod. When the tension spring is not subjected to external force, it pulls the other end of the connecting rod, and the roller is located within an arc-shaped groove on the turntable.

[0005] Preferably, a bearing is provided on the base plate, the lower part of the bearing is located inside the base plate, the upper part of the bearing is installed inside the turntable, and the bearing is coaxial with the turntable.

[0006] Preferably, the central axis of the arc-shaped groove is parallel to the central axis of the turntable.

[0007] Preferably, the central axis of the roller is parallel to the central axis of the turntable.

[0008] Preferably, the plurality of arc-shaped grooves are evenly distributed on the outer circumferential surface of the turntable.

[0009] Preferably, the arc-shaped grooves are in 3, 4, 5, or 6 locations.

[0010] The beneficial effects of this utility model are: the indexing rotary positioning platform mechanism of this utility model can be manually operated to index and position the components, with a simple structure, convenient operation, and low manufacturing cost. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein: Figure 1 This is a schematic diagram of the indexing rotary positioning platform mechanism of this utility model; Figure 2 This is a schematic diagram of the indexing rotary positioning platform mechanism of this utility model without the top plate. Detailed Implementation

[0012] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0013] Please see Figure 1 and Figure 2 A rotary indexing positioning platform mechanism includes a base plate 1 and a top plate 2. A rotatable turntable 3 is mounted on the base plate 1, and the top plate 2 is fixed to the turntable 3. Multiple arc-shaped grooves 4 are provided on the outer circumference of the turntable 3. A connecting rod 5 is provided on the side of the turntable 3. One end of the connecting rod 5 is rotatably mounted on the base plate 1 via a pin 6. A roller mounting seat 7 extending towards the turntable 3 is provided in the middle of the connecting rod 5. A roller mounting seat 7 is mounted on the roller mounting seat 7. There is a roller 8, and a tension spring mounting rod 9 is provided on the base plate 1. A tension spring 10 is installed on the tension spring mounting rod 9. One end of the tension spring 10 is fixed to the tension spring mounting rod 9, and the other end of the tension spring 10 is fixed to the other end of the connecting rod 5. When the tension spring 10 is not subjected to external force, it pulls the other end of the connecting rod 5 and the roller 8 is located in an arc-shaped groove 4 in the turntable 3. That is, in the natural state, the tension of the tension spring 10 causes the connecting rod 5 to press the roller 8 into the arc-shaped groove 4.

[0014] Preferably, a bearing 11 is provided on the base plate 1, the lower part of the bearing 11 is located inside the base plate 1, the upper part of the bearing 11 is installed inside the turntable 3, the bearing 11 is coaxial with the turntable 3, and the turntable 3 can rotate around the bearing 11.

[0015] Preferably, the central axis of the arc-shaped groove 4 is parallel to the central axis of the turntable 3.

[0016] Preferably, the central axis of the roller 8 is parallel to the central axis of the turntable 3.

[0017] Preferably, the multiple arc-shaped grooves 4 are evenly distributed on the outer peripheral surface of the turntable 3, that is, the multiple arc-shaped grooves 4 are evenly distributed in a ring array on the outer peripheral surface of the turntable 3.

[0018] Preferably, there are 3, 4, 5, or 6 arc-shaped grooves 4. The turntable 3 can achieve indexed rotation at corresponding angles. For example, when there are 4 arc-shaped grooves 4, when the turntable 3 rotates and the roller 8 moves from one arc-shaped groove 4 to another adjacent arc-shaped groove 4, the turntable 3 rotates 90 degrees, the top plate 2 on the turntable 3 also rotates 90 degrees, and the corresponding components on the top plate 2 also rotate 90 degrees.

[0019] The components to be processed and assembled are placed on the top plate 2. When there are four arc-shaped grooves 4 and the component needs to rotate 90 degrees, the top plate 2 is rotated by hand. As the top plate 2 rotates, it drives the turntable 3 to rotate. The turntable 3 overcomes the tension of the tension spring 10, causing the roller 8 to roll out of one arc-shaped groove 4 and along the outer circumference of the turntable 3, entering another adjacent arc-shaped groove 4. The top plate 2 stops rotating, the roller 8 is fixed in the other arc-shaped groove 4, and the top plate 2 is stationary. The component on the top plate 2, after rotating 90 degrees, is stationary on the top plate 2, ready for the next processing and assembly operation. The entire indexing rotary positioning platform mechanism has a simple structure, is easy to operate, and has low manufacturing costs.

[0020] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A rotary indexing positioning platform mechanism, comprising a base plate and a top plate, characterized in that, A rotatable turntable is provided on the base plate, and the top plate is fixed on the turntable. Multiple arc-shaped grooves are provided on the outer circumference of the turntable. A connecting rod is provided on the side of the turntable. One end of the connecting rod is rotatably mounted on the base plate via a pin. A roller mounting seat extending towards the turntable is provided in the middle of the connecting rod. A roller is mounted on the roller mounting seat. A tension spring mounting rod is provided on the base plate. A tension spring is mounted on the tension spring mounting rod. One end of the tension spring is fixed to the tension spring mounting rod, and the other end of the tension spring is fixed to the other end of the connecting rod. When the tension spring is not subjected to external force, it pulls the other end of the connecting rod, and the roller is located in an arc-shaped groove of the turntable.

2. The indexing rotary positioning platform mechanism according to claim 1, characterized in that, The base plate is provided with a bearing, the lower part of which is located inside the base plate, and the upper part of which is installed inside the turntable. The bearing is coaxial with the turntable.

3. The indexing rotary positioning platform mechanism according to claim 1 or 2, characterized in that, The central axis of the arc-shaped groove is parallel to the central axis of the turntable.

4. The indexing rotary positioning platform mechanism according to claim 3, characterized in that, The central axis of the roller is parallel to the central axis of the turntable.

5. The indexing rotary positioning platform mechanism according to claim 4, characterized in that, The multiple arc-shaped grooves are evenly distributed on the outer circumference of the turntable.

6. The indexing rotary positioning platform mechanism according to claim 5, characterized in that, The arc-shaped grooves are in 3, 4, 5, or 6 locations.

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