A fixing device for machining gears of a speed reducer

Abstract

This utility model relates to the technical field of gear reduction equipment, specifically a fixing device for gear reduction. It includes a base with a central groove at the top center. A clamping column is fixed directly above the central groove at the top of the base. Multiple clamping blocks are rotatably connected to the clamping column, and torsion springs connect the clamping blocks to the clamping column. The clamping blocks penetrate the clamping column. This fixing device for gear reduction, by including the clamping column, clamping blocks, rotating column, and pushing roller, allows for quick and easy clamping of gears by simply rotating the rotating column to move the pushing roller outwards, thus extending the clamping blocks outwards. Furthermore, the device can adapt to different gear specifications by changing the rotation angle of the rotating column, improving its adaptability.

Description

Technical Field

[0001] This utility model relates to the technical field of gear reduction equipment, specifically a fixing device for gear reduction. Background Technology

[0002] As a key component in mechanical transmission systems, the machining accuracy of gear reducers directly affects the performance and service life of the reducer. During gear machining, the gear fixing device is an important piece of equipment to ensure machining accuracy. However, existing fixing devices are relatively complicated to operate when fixing gears and have limited applicability. To address these issues, this application designs a fixing device for gear machining in reducers. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a fixing device for machining gears in a speed reducer.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fixing device for machining gears of a reducer, comprising a base, a central groove being formed at the top center of the base, a clamping column being fixed directly above the central groove at the top center of the base, a plurality of clamping blocks being rotatably connected to the clamping column, a torsion spring connecting the clamping blocks to the clamping column, the clamping blocks penetrating the clamping column, a limiting groove being formed near the bottom of the inner wall of the clamping column, a rotating column being rotatably connected within the limiting groove, the rotating column being located at the center of the clamping column, and a rotating column being uniformly rotatably connected to the outer wall of the rotating column. There are multiple pushing rollers that can contact the clamping block and the inner wall of the clamping column. A cross groove is opened at the middle position on the rotating column. A lifting column is slidably connected in the cross groove. The lifting column is adapted to the cross groove. A rotating block is fixed at the top of the lifting column. An upper locking column is fixed at the bottom of the lifting column. A lower locking column is provided below the upper locking column. The outer wall of the upper locking column is provided with gear teeth. The top of the lower locking column is provided with a groove adapted to the upper locking column. The upper locking column and the lower locking column are slidably connected. The lower locking column is rotatably connected to the middle column groove through a ratchet.

[0007] In order to ensure that the upper and lower locking columns can be accurately aligned when the lifting column moves up and down, the present invention is improved by fixing a positioning column at the middle position on the lower locking column, and inserting the positioning column upward into the upper locking column and the lifting column and slidingly connecting them.

[0008] To make the rotating column rotate more smoothly and reduce the impact of friction, the present invention is improved by having multiple rolling balls rotatably connected to both the upper and lower ends of the portion of the rotating column located inside the limiting groove, and the rolling balls contacting the inner wall of the limiting groove.

[0009] To prevent slippage when clamping gears, this invention is improved by providing strip-shaped anti-slip protrusions on the outer wall of the clamping block.

[0010] To facilitate the installation and fixing of the device, the present invention is improved by providing multiple fixing holes evenly distributed on the base.

[0011] (III) Beneficial Effects

[0012] Compared with the prior art, the present invention provides a fixing device for machining gears of a speed reducer, which has the following advantages:

[0013] This gear-gripping device for gear processing is equipped with a clamping column, a clamping block, a rotating column, and a pushing roller. When clamping a gear, the clamping block can be moved outward by simply rotating the rotating column to drive the pushing roller, thus quickly and easily clamping the gear firmly. At the same time, it can adapt to different gears by changing the rotation angle of the rotating column according to different gear specifications, thereby improving the adaptability of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the first main view structure of this utility model;

[0015] Figure 2 This is a first partial structural schematic diagram of the present invention in cross-section;

[0016] Figure 3 This is a schematic diagram of the second partial structure of the present invention;

[0017] Figure 4 This is a cross-sectional view of the third part of the structure of this utility model.

[0018] In the diagram: 1. Base; 2. Intermediate column groove; 3. Clamping column; 4. Clamping block; 5. Torsion spring; 6. Limiting groove; 7. Rotating column; 8. Pushing roller; 9. Cross slide groove; 10. Lifting column; 11. Rotating block; 12. Upper locking column; 13. Lower locking column; 14. Gear tooth; 15. Ratchet; 16. Positioning column; 17. Ball; 18. Strip-shaped anti-slip protrusion; 19. Fixing hole. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0020] Please see Figure 1-4 A fixing device for machining reducer gears includes a base 1. A central groove 2 is formed at the top center of the base 1. A clamping tube 3 is fixed directly above the central groove 2 at the top center of the base 1. Multiple clamping blocks 4 are rotatably connected to the clamping tube 3. A torsion spring 5 connects the clamping blocks 4 to the clamping tube 3. The clamping blocks 4 penetrate the clamping tube 3. A limiting groove 6 is formed near the bottom of the inner wall of the clamping tube 3. A rotating column 7 is rotatably connected within the limiting groove 6. The rotating column 7 is located at the center of the clamping tube 3. Multiple pushing rollers 8 are evenly rotatably connected to the outer wall of the rotating column 7. The pushing rollers 8 can interact with the... The clamping block 4 contacts the inner wall of the clamping column 3. A cross groove 9 is provided in the middle of the rotating column 7. A lifting column 10 is slidably connected in the cross groove 9. The lifting column 10 is adapted to the cross groove 9. A rotating block 11 is fixed at the top of the lifting column 10. An upper locking column 12 is fixed at the bottom of the lifting column 10. A lower locking column 13 is provided below the upper locking column 12. A gear tooth 14 is provided on the outer wall of the upper locking column 12. A groove adapted to the upper locking column 12 is provided at the top of the lower locking column 13. The upper locking column 12 and the lower locking column 13 are slidably connected. The lower locking column 13 is rotatably connected to the middle column groove 2 through a ratchet 15.

[0021] In the initial state of use, the pushing roller 8 on the rotating column 7 is in contact with the inner wall of the clamping tube column 3, but not with the clamping block 4. At this time, under the action of the torsion spring 5, the outer wall of the clamping block 4 closes with the outer wall of the clamping tube column 3, securing the gear on the base 1 and placing the clamping tube column 3 in the middle of the gear. Then, the rotating block 11 is operated and rotated, causing the lifting column 10 to rotate. The lifting column 10 drives the rotating column 7 and the pushing roller 8 to rotate, moving the pushing roller 8 along the inner wall of the clamping tube column 3. When it reaches the clamping block 4, it makes contact and pushes the clamping block 4 to rotate, causing the outer wall of the clamping block 4 to move outward until it contacts the gear. At the same time, the lifting column 10 drives the upper locking column 12 to rotate, and the upper locking column 12 then engages with the lower locking column 12. The locking pin 13 engages, thereby driving the lower locking pin 13 to rotate. Since the lower locking pin 13 is connected to the middle pin groove 2 through a ratchet 15, under the action of the ratchet 15, the lower locking pin 13, the upper locking pin 12, and the lifting pin 10 cannot rotate in the opposite direction. Therefore, the clamping block 4 is prevented from rotating in the opposite direction due to the squeezing force. Under the action of the force, the rotating pin 7 rotates in the opposite direction, thus achieving a firm clamping of the gear. When it is necessary to remove the gear, simply pull the rotating block 11 upward to drive the lifting pin 10 and the upper locking pin 12 to move, so that the upper locking pin 12 disengages from the lower locking pin 13. Thus, the rotating pin 7 is not affected by the ratchet 15 and can rotate in the opposite direction. Under the action of the torsion spring 5, the clamping block 4 drives the pushing roller 8 to move, thereby driving the rotating pin 7 to rotate in the opposite direction. The clamping block 4 moves away from the gear and releases the clamping fixation.

[0022] In actual use, it was found that after the upper locking post 12 and the lower locking post 13 are separated, they need to be reconnected. In order to make the connection faster and more accurate, in this embodiment, a positioning post 16 is fixed in the middle position on the lower locking post 13. The positioning post 16 is inserted upward into the upper locking post 12 and the lifting post 10 and slidably connected with them.

[0023] In actual use, it was found that the rotating column 7 was not smooth when rotating in the limiting groove 6 due to friction. In order to solve the above problem, in this embodiment, multiple rolling balls 17 are rotatably connected to both the upper and lower ends of the part of the rotating column 7 located in the limiting groove 6, and the rolling balls 17 are in contact with the inner wall of the limiting groove 6.

[0024] In actual use, it was found that the clamping block 4 would slip when clamping the gear. In order to solve the above problem, in this embodiment, the outer wall of the clamping block 4 is provided with strip-shaped anti-slip protrusions 18.

[0025] In actual use, it was found that, in order to facilitate the installation of the fixing device, in this embodiment, the base 1 is provided with a plurality of fixing holes 19 evenly distributed.

[0026] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0027] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0028] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixing device for machining gears of a speed reducer, comprising a base (1), characterized in that: The top of the base (1) has a central column groove (2) at the middle position. A clamping column (3) is fixed above the central column groove (2) at the top of the base (1). Multiple clamping blocks (4) are rotatably connected to the clamping column (3). A torsion spring (5) is connected between the clamping block (4) and the clamping column (3). The clamping block (4) passes through the clamping column (3). A limiting groove (6) is opened on the inner wall of the clamping column (3) near the bottom. A rotating column (7) is rotatably connected in the limiting groove (6). The rotating column (7) is located in the middle position of the clamping column (3). Multiple pushing rollers (8) are evenly rotatably connected to the outer wall of the rotating column (7). The pushing rollers (8) can interact with the clamping block (4) and the clamping column (3). The inner ring wall is in contact. A cross groove (9) is provided in the middle position on the rotating column (7). A lifting column (10) is slidably connected in the cross groove (9). The lifting column (10) is adapted to the cross groove (9). A rotating block (11) is fixed at the top of the lifting column (10). An upper locking column (12) is fixed at the bottom of the lifting column (10). A lower locking column (13) is provided below the upper locking column (12). A gear tooth (14) is provided on the outer wall of the upper locking column (12). A groove adapted to the upper locking column (12) is provided at the top of the lower locking column (13). The upper locking column (12) and the lower locking column (13) are slidably connected. The lower locking column (13) is rotatably connected to the middle column groove (2) through a ratchet (15).

2. The fixing device for machining gears of a speed reducer according to claim 1, characterized in that: A positioning post (16) is fixed in the middle position on the lower locking post (13). The positioning post (16) is inserted upward into the upper locking post and the lifting post (10) and slidably connected to them.

3. The fixing device for machining gears of a speed reducer according to claim 2, characterized in that: The rotating column (7) is rotatably connected to multiple balls (17) at both ends of the portion inside the limiting groove (6), and the balls (17) are in contact with the inner wall of the limiting groove (6).

4. The fixing device for machining gears of a speed reducer according to claim 3, characterized in that: The outer wall of the clamping block (4) is provided with strip-shaped anti-slip protrusions (18).

5. A fixing device for machining gears in a speed reducer according to claim 4, characterized in that: The base (1) has a plurality of fixing holes (19) evenly distributed on it.

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