Anti-deformation tool for thin-wall gear machining

Abstract

The utility model relates to the technical field of gear machining, and discloses an anti-deformation tool for thin-wall gear machining, which comprises a bottom plate and further comprises a fixing screw fixedly connected to the surface of the bottom plate, the fixing screw is arranged at the axis of the bottom plate, the outer wall of the fixing screw is in threaded connection with an inner threaded ring, and the inner threaded ring is arranged on the surface of the bottom plate. And the outer wall of the internal thread ring is connected with a lifting ring through a bearing. According to the utility model, the inner threaded ring is in threaded connection with the outer wall of the fixed screw rod, and the lifting ring is connected with the outer wall of the inner threaded ring through the bearing, so that the lifting ring synchronously drives the movable plate to move through the movable shaft, and the other end of the movable plate is connected with the positioning rod through the connecting shaft; according to the thin-wall gear ring machining device, the multiple sets of annularly-distributed positioning rods move on the surface of the bottom plate, supporting of the multiple sets of positioning rods to the inner wall of the thin-wall gear ring is conveniently achieved, compared with an existing external clamping gear, deformation of the gear caused by external clamping force is avoided, the machining accuracy of the gear is improved, and synchronism is high.

Description

Technical Field

[0001] The utility model relates to the technical field of gear processing, in particular to an anti-deformation tool for processing thin-wall gears. Background Art

[0002] Gears are mechanical components with teeth on the rim that can continuously mesh to transmit motion and power. Thin-walled gears are ring gears with thinner walls relative to their own size and disc gears with smaller wheel widths.

[0003] The existing processing of thin-walled gears usually involves fixing the gears externally through a chuck. Due to the thin wall thickness of the gears, external clamping of the gears can easily cause deformation of the gears, resulting in low subsequent gear processing accuracy. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an anti-deformation tool for machining thin-walled gears, which solves the problems mentioned in the above background.

[0005] The utility model provides the following technical solution: an anti-deformation tool for thin-walled gear processing, comprising: a bottom plate, and further comprising: a fixing screw is fixedly connected to the surface of the bottom plate, and the fixing screw is arranged at the axis of the bottom plate, the outer wall of the fixing screw is threadedly connected to an internal thread ring, and the outer wall of the internal thread ring is connected to a lifting ring through a bearing;

[0006] The outer wall of the lifting ring is connected to a movable plate in an annular shape via a movable shaft, and the bottom end of the movable plate is connected to a positioning rod via a connecting shaft;

[0007] The movable plates are arranged in a plurality of groups at equal intervals in a circular shape on the outer wall of the lifting ring;

[0008] The positioning rods are vertically arranged on the surface of the bottom plate, and a plurality of groups of positioning rods are equidistantly arranged in a circle around the center of the bottom plate.

[0009] Furthermore, the bottom plate is arranged in a circular structure.

[0010] Furthermore, the bottom end of the positioning rod is rotatably connected to a movable wheel, and a sliding groove is provided at the bottom end of the movable wheel.

[0011] Furthermore, the plurality of groups of movable plates are at least six groups, and the number of movable plates provided corresponds to the number of positioning rods.

[0012] Furthermore, the top end of the fixing screw is fixedly connected to a limiting block.

[0013] Furthermore, a plurality of groups of slide grooves are equidistantly arranged in an annular shape on the surface of the bottom plate, and the slide grooves are embedded in the surface of the bottom plate, and the slide grooves are correspondingly arranged with respect to the movable wheel.

[0014] Furthermore, the outer wall of the internal threaded ring is fixedly connected to the inner ring of the bearing, and the outer ring of the bearing is fixedly connected to the inner wall of the lifting ring.

[0015] Furthermore, a handle is fixedly connected to the top end of the internal threaded ring.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] In the utility model, an internal threaded ring is connected to the outer wall of the fixed screw rod through a threaded connection, and the outer wall of the internal threaded ring is connected to a lifting ring through a bearing, so that the lifting ring synchronously drives the movable plate to move through a movable shaft, and the other end of the movable plate is connected to a positioning rod through a connecting shaft, so that multiple groups of positioning rods distributed in an annular shape are moved on the surface of the bottom plate, so that the multiple groups of positioning rods can support the inner wall of the thin-walled gear ring. Compared with the existing external clamping gear, the deformation of the gear caused by the external clamping force is avoided, which is beneficial to improving the machining accuracy of the gear, and has high synchronization and simple and convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of an anti-deformation tool for machining thin-walled gears according to the utility model;

[0019] Figure 2 For the utility model Figure 1 A schematic diagram of the enlarged structure at point A;

[0020] Figure 3 It is a schematic diagram of the side cross-sectional structure of the fixed screw rod and the movable plate in the utility model;

[0021] Figure 4 It is a schematic diagram of the cross-sectional structure of the internal thread ring and the bearing in the utility model.

[0022] In the figure: 1. Base plate; 2. Fixed screw; 3. Limit block; 4. Internal thread ring; 5. Bearing; 6. Lifting ring; 7. Movable shaft; 8. Connecting shaft; 9. Positioning rod; 10. Movable wheel; 11. Slide groove; 12. Handle; 13. Movable plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-Figure 4, an anti-deformation tooling for thin-walled gear processing, comprising: a base plate 1, a fixed screw 2, a limit block 3, an internal thread ring 4, a bearing 5, a lifting ring 6, a movable shaft 7, a connecting shaft 8, a positioning rod 9, a movable wheel 10, a slide groove 11, a handle 12 and a movable plate 13, and also comprising: the base plate 1 is arranged in a circular structure, and a fixed screw 2 is fixedly connected to the surface of the base plate 1, and the fixed screw 2 is arranged at the axis of the base plate 1, and the fixed screw 2 is vertically installed on the surface of the base plate 1, and the outer wall of the fixed screw 2 is threadedly connected with the internal thread ring 4, so that the internal thread ring 4 can rotate on the outer wall of the fixed screw 2 by rotating, and at the same time , a lifting ring 6 is connected to the outer wall of the internal thread ring 4 through a bearing 5. Specifically, the outer wall of the internal thread ring 4 is fixedly connected to the inner ring of the bearing 5, and the outer ring of the bearing 5 is fixedly connected to the inner wall of the lifting ring 6, so that the internal thread ring 4 can achieve a stable position of the lifting ring 6 when rotating and lifting. In consideration of the convenience of operation of the internal thread ring 4, a handle 12 is fixedly connected to the top of the internal thread ring 4, so that the user can operate the internal thread ring 4 through the handle 12. At the same time, a limiting block 3 is fixedly connected to the top of the fixed screw 2 to limit the fixed screw 2 at the top, thereby ensuring the stability of the rotation range of the internal thread ring 4;

[0025] Furthermore, after the lifting ring 6 is lifted and lowered by the internal threaded ring 4, a movable plate 13 is connected to the outer wall of the lifting ring 6 in an annular shape through a movable shaft 7, and the bottom end of the movable plate 13 is connected to a positioning rod 9 through a connecting shaft 8, so that the positioning rod 9 can be transmitted through the movable plate 13. Specifically, the positioning rod 9 is vertically arranged on the surface of the base plate 1, so as to support and limit the inner wall of the thin-walled gear. In addition, considering the supporting effect on the inner wall of the thin-walled gear, a plurality of groups of positioning rods 9 are equidistantly arranged in an annular shape about the center of the base plate 1, and at least six groups are arranged to ensure uniform distribution on the inner wall of the gear. At the same time, a plurality of groups of movable plates 13 are equidistantly arranged in an annular shape about the outer wall of the lifting ring 6, and the number of movable plates 13 corresponds to the number of positioning rods 9, so as to realize stable transmission of the positioning rods 9 by the movable plates 13.

[0026] See also Figure 1-Figure 4 Considering the movement effect of multiple groups of positioning rods 9 distributed in an annular manner and at equal intervals on the surface of the bottom plate 1, a movable wheel 10 is rotatably connected to the bottom end of the positioning rod 9, and a slide groove 11 is provided at the bottom end of the movable wheel 10 to facilitate limiting the movement of the movable wheel 10, so that the slide groove 11 is correspondingly arranged with respect to the movable wheel 10. Specifically, multiple groups of slide grooves 11 are opened in an annular manner and at equal intervals on the surface of the bottom plate 1, and the slide grooves 11 are embedded in the surface of the bottom plate 1 to achieve the limitation of the moving path of the positioning rod 9.

[0027] Working principle: When in use, the gear to be processed is sleeved on the outside of the positioning rods 9 distributed in an annular manner, so that multiple groups of positioning rods 9 are accurately distributed on the inner wall of the gear. The internal threaded ring 4 is rotated by the handle 12 to move the internal threaded ring 4 downward, and the lifting ring 6 is connected to the outer wall of the internal threaded ring 4 through the bearing 5, so that the lifting ring 6 is synchronously lowered, and the movable plate 13 is connected to the outer side of the lifting ring 6 through the movable shaft 7. The movable plate 13 drives the positioning rod 9 to move through the bottom connecting shaft 8. Under the action of the fixed length of the movable plate 13, the positioning rod 9 is moved outward inside the slide groove 11 through the movable wheel 10, so that the multiple groups of positioning rods 9 distributed in an annular manner move synchronously to fit the inner wall of the gear, ensuring the support and fixation of the gear inside, avoiding deformation of the thin-walled gear when processing the gear on the outer wall, and helping to improve the processing accuracy of the thin-walled gear.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-deformation tool for thin-walled gear processing, comprising: The bottom plate (1) is characterized in that it further comprises: a fixing screw (2) is fixedly connected to the surface of the bottom plate (1), and the fixing screw (2) is arranged at the axis of the bottom plate (1); the outer wall of the fixing screw (2) is threadedly connected to an internal thread ring (4), and the outer wall of the internal thread ring (4) is connected to a lifting ring (6) via a bearing (5); The outer wall of the lifting ring (6) is connected to a movable plate (13) in an annular shape via a movable shaft (7), and the bottom end of the movable plate (13) is connected to a positioning rod (9) via a connecting shaft (8); The movable plates (13) are arranged in a plurality of groups at equal intervals in an annular manner on the outer wall of the lifting ring (6); The positioning rods (9) are arranged vertically on the surface of the bottom plate (1), and a plurality of groups of positioning rods (9) are arranged in a circular shape equidistantly about the center of the bottom plate (1).

2. The anti-deformation tool for thin-walled gear machining according to claim 1, characterized in that: The bottom plate (1) is arranged in a circular structure.

3. The anti-deformation tool for thin-walled gear machining according to claim 1, characterized in that: The bottom end of the positioning rod (9) is rotatably connected to a movable wheel (10), and a sliding groove (11) is provided at the bottom end of the movable wheel (10).

4. The anti-deformation tool for thin-walled gear machining according to claim 3, characterized in that: The plurality of groups of movable plates (13) is at least six groups, and the number of movable plates (13) provided corresponds to the number of positioning rods (9).

5. The anti-deformation tool for thin-walled gear machining according to claim 1, characterized in that: The top end of the fixing screw rod (2) is fixedly connected to a limiting block (3).

6. The anti-deformation tool for thin-walled gear machining according to claim 1, characterized in that: The surface of the bottom plate (1) is provided with a plurality of groups of slide grooves (11) at equal intervals in an annular manner, and the slide grooves (11) are embedded in the surface of the bottom plate (1), and the slide grooves (11) are arranged corresponding to the movable wheel (10).

7. The anti-deformation tool for thin-walled gear machining according to claim 1, characterized in that: The outer wall of the internal threaded ring (4) is fixedly connected to the inner ring of the bearing (5), and the outer ring of the bearing (5) is fixedly connected to the inner wall of the lifting ring (6).

8. The anti-deformation tool for machining thin-walled gears according to claim 7, characterized in that: A handle (12) is fixedly connected to the top end of the internal thread ring (4).

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