Miniature worm and gear rotating platform

Abstract

The utility model relates to the technical field of rotating platforms, and discloses a miniature worm gear and worm rotating platform, which comprises a base, a worm gear, a worm and a turntable, the base is provided with a worm gear mounting hole and a worm mounting groove, the worm gear is arranged in the worm gear mounting hole, the worm is arranged in the worm mounting groove, the turntable is connected with the upper surface of the worm gear, and the worm is in transmission connection with the worm gear. A connecting bearing is arranged on the worm, a connecting adjusting groove is formed in the worm mounting groove, and the worm is adjustably arranged in the worm mounting groove through matching of the connecting bearing and the connecting adjusting groove; a worm gear mounting groove and a worm mounting groove are formed in a base, a worm gear and a worm are mounted, a connecting adjusting groove is formed in the worm mounting groove, a connecting bearing located on the worm is adjusted through the connecting adjusting groove, then the center distance between the worm and the worm gear is adjusted, and the rotating back clearance between the worm gear and the worm is changed; and due to multi-degree-of-freedom adjustment between the worm and the worm gear, the precision error caused by abrasion is reduced, and the service life of the rotary table is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of rotary platform technology, and in particular to a miniature worm gear rotary platform. Background Technology

[0002] A rotary platform typically consists of a base and a rotating platform. To enable the rotating platform to rotate on the base, a rotating device is usually installed between the base and the rotating platform. This rotating device drives the rotating platform to rotate. Most existing rotary platforms use a worm gear and worm shaft combination to rotate the rotating platform. The assembly relationship between the worm gear and worm shaft is mostly fixed and cannot be adjusted. After long-term use, the worm gear will wear down, causing the gap between it and the worm shaft to increase, resulting in a decrease in accuracy. If adjustments are needed, the entire platform needs to be replaced, which is time-consuming and costly. Therefore, improvements are required. Utility Model Content

[0003] The main purpose of this invention is to propose a miniature worm gear rotating platform, which aims to provide a rotating platform that facilitates the adjustment of the positional relationship between the worm and the worm wheel.

[0004] To achieve the above objectives, this utility model proposes a miniature worm gear rotary platform, comprising a base, a worm gear, a worm, and a turntable. The base is provided with a worm gear mounting hole and a worm mounting groove. The worm gear is disposed in the worm gear mounting hole, and the worm is disposed in the worm mounting groove. The turntable is connected to the upper surface of the worm gear, and the worm is drivenly connected to the worm gear. A connecting bearing is provided on the worm, and a connecting adjustment groove is provided in the worm mounting groove. The worm can be adjusted to be disposed in the worm mounting groove through the cooperation of the connecting bearing and the connecting adjustment groove.

[0005] Specifically, the connecting adjustment groove is provided with a tightening hole, through which an external nut screw enters the connecting adjustment groove to tighten the connecting bearing.

[0006] Specifically, the worm gear mounting groove is provided with a cover plate that is compatible with it, and the side of the cover plate facing the connecting adjustment groove is provided with a corresponding adjustment block. The adjustment block is provided with an adjustment hole that penetrates the cover plate. The external grommets enter the connecting adjustment groove through the adjustment hole to perform axial adjustment of the connecting bearing.

[0007] Specifically, a drive platform is provided on the base, and a drive motor is provided on the drive platform. The motor shaft end of the drive motor is connected to the worm gear transmission.

[0008] Specifically, the base is provided with a fixing part, and the fixing part is provided with a fixing hole. The base is fixedly connected to the external machine tool by external fixing screws passing through the fixing hole.

[0009] This utility model's technical solution involves setting worm gear mounting grooves and worm mounting grooves on the base to facilitate the installation of the worm gear and worm. Simultaneously, a connecting adjustment groove is provided within the worm mounting groove. By adjusting the connecting bearing located on the worm through the connecting adjustment groove, the center distance between the worm and worm gear is adjusted, thereby changing the rotational backlash between the worm gear and worm. This achieves multi-degree-of-freedom adjustment between the worm and worm gear, facilitating the reduction of accuracy errors caused by wear through adjustment and extending the service life of the rotary table. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0011] Figure 2 This is one of the three-dimensional structural diagrams of the base of this utility model.

[0012] Figure 3 This is the second three-dimensional structural diagram of the base of this utility model.

[0013] Figure 4 This is one of the three-dimensional structural diagrams of the cover plate of this utility model.

[0014] Figure 5 This is the second three-dimensional structural diagram of the cover plate of this utility model.

[0015] Figure 6 This is a schematic diagram showing the connection state of the worm gear and worm of this utility model.

[0016] The reference numerals in the attached drawings include: 10, base; 11, worm gear; 12, worm; 13, turntable; 14, connecting bearing; 15, worm gear mounting hole; 16, worm mounting groove; 17, connecting adjustment groove; 18, tightening hole; 19, cover plate; 20, adjusting block; 21, adjusting hole; 22, drive platform; 23, drive motor; 24, fixing part; 25, fixing hole. Detailed Implementation

[0017] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. 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 of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0018] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0019] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0020] like Figures 1 to 6 As shown, a miniature worm gear rotary platform includes a base 10, a worm gear 11, a worm 12, and a turntable 13. The base 10 is provided with a worm gear mounting hole 15 and a worm mounting groove 16. The worm gear 11 is disposed in the worm gear mounting hole 15, and the worm 12 is disposed in the worm mounting groove 16. The turntable 13 is connected to the upper surface of the worm gear 11, and the worm 12 is drivenly connected to the worm gear 11. A connecting bearing 14 is provided on the worm 12, and a connecting adjustment groove 17 is provided in the worm mounting groove 16. The worm 12 can be adjusted to be disposed in the worm mounting groove 16 through the cooperation of the connecting bearing 14 and the connecting adjustment groove 17. A worm gear 11 mounting groove and a worm mounting groove 16 are provided on the base 10 to facilitate the installation of the worm gear 11 and the worm 12. At the same time, a connecting adjustment groove 17 is provided in the worm mounting groove 16. The connecting bearing 14 located on the worm 12 is adjusted through the connecting adjustment groove 17, thereby adjusting the center distance between the worm 12 and the worm gear 11, and thus changing the rotational backlash between the worm gear 11 and the worm 12. This allows for multi-degree-of-freedom adjustment between the worm 12 and the worm gear 11, which facilitates the reduction of accuracy errors caused by wear through adjustment and extends the service life of the rotary table.

[0021] The connecting adjustment groove 17 is provided with a tightening hole 18. The external grommets enter the connecting adjustment groove 17 through the tightening hole 18 to tighten the connecting bearing 14. The worm gear mounting groove 16 is provided with a cover plate 19 that is compatible with it. The side of the cover plate 19 facing the connecting adjustment groove 17 is provided with a corresponding adjusting block 20. The adjusting block 20 is provided with an adjusting hole 21 that penetrates the cover plate 19. The external grommets enter the connecting adjustment groove 17 through the adjusting hole 21 to adjust the connecting bearing 14 axially. In this embodiment, a tightening hole 18 is provided in the connecting adjustment groove 17. The tightening hole 18 is located at the upper and lower ends of the connecting adjustment groove 17. An adjustment hole 21 is provided on the cover plate 19. When adjusting the worm gear 12, the nut screw is first inserted into the connecting adjustment groove 17 through the adjustment hole 21 to adjust the position of the connecting bearing 14 in the connecting adjustment groove 17 radially, thereby adjusting the position of the worm gear 12. After the position adjustment is completed, the nut screw is inserted into the connecting adjustment groove 17 through the tightening hole 18 to tighten the connecting bearing 14, thereby fixing the worm gear 12.

[0022] A drive platform 22 is provided on the base 10, and a drive motor 23 is provided on the drive platform 22. The motor shaft of the drive motor 23 is connected to the worm gear 12 for transmission. In this embodiment, the drive motor 23 is provided on the drive platform 22, and the drive motor 23 drives the worm gear 12, thereby realizing the rotation of the turntable 13.

[0023] A fixing part 24 is provided on the base 10, and a fixing hole 25 is provided on the fixing part 24. The base 10 is fixedly connected to the external machine tool by external fixing screws passing through the fixing hole 25. In this embodiment, by providing a fixing part 24 on the base 10 and a fixing hole 25 on the fixing part 24, it is easier to fix the base 10.

[0024] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A miniature worm gear rotary platform, comprising a base, a worm gear, a worm, and a turntable, characterized in that: The base is provided with a worm gear mounting hole and a worm mounting groove. The worm gear is located in the worm gear mounting hole, and the worm is located in the worm mounting groove. The turntable is connected to the upper surface of the worm gear, and the worm is connected to the worm gear through a drive connection. A connecting bearing is provided on the worm, and a connecting adjustment groove is provided in the worm mounting groove. The worm can be adjusted to be located in the worm mounting groove through the cooperation of the connecting bearing and the connecting adjustment groove.

2. A micro-worm wheel and worm rotary platform according to claim 1, characterized in that: The connecting adjustment groove is provided with a tightening hole, through which an external nut screw enters the connecting adjustment groove to tighten the connecting bearing.

3. The miniature worm gear rotary platform according to claim 1, characterized in that: The worm gear mounting groove is provided with a cover plate that is adapted to it. On the side of the cover plate facing the connecting adjustment groove, there is a corresponding adjustment block. The adjustment block is provided with an adjustment hole that penetrates the cover plate. The external grommets enter the connecting adjustment groove through the adjustment holes to adjust the axial direction of the connecting bearing.

4. The miniature worm gear rotary platform according to claim 1, characterized in that: A drive platform is provided on the base, and a drive motor is provided on the drive platform. The motor shaft of the drive motor is connected to the worm gear transmission.

5. A micro-worm drive rotary platform according to claim 1, wherein: The base is provided with a fixing part, and the fixing part is provided with a fixing hole. The base is fixedly connected to the external machine tool by external fixing screws passing through the fixing hole.

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