Processing and chip removing mechanism for outer hexagonal nut

Abstract

The utility model discloses a kind of outer hexagonal nut machining chip removal mechanisms, it is related to nut production technical field, including chassis, the middle fixed connection of chassis is limit sleeve one and limit sleeve two, the inner side wall of limit sleeve one is rotatably connected with rotating shaft one, the inner side wall of limit sleeve two is rotatably connected with rotating shaft two, in the utility model, three blades of processing tool cantilever after cutting outer hexagonal nut, its surface is easy to adhere to chip, if not cleaning can reduce blade sharpness and processing accuracy.Arc cover one is rotated 120 degrees in the range after corresponding blade leaves workpiece, airflow generated by axial fan is guided through arc cover two, when passing through the gradually narrow passage between the conical plate on the supporting plate, flow rate is enhanced, can efficiently blow off chip on blade, ensure that blade always maintains good sharpness, to ensure the accuracy of subsequent outer hexagonal nut polishing, reduce the processing error caused by chip residue, improve the stability of product quality.

Description

Technical Field

[0001] This utility model relates to the field of nut manufacturing technology, and in particular to a chip removal mechanism for processing external hexagonal nuts. Background Technology

[0002] The production and processing of hexagonal nuts relies on the collaboration of multiple types of equipment: cold heading machines use cold heading technology to stamp metal wire into a hexagonal shape and inner hole, which is the core of the forming process; tapping machines are responsible for processing internal threads, and fully automatic models can achieve efficient and automated production; chamfering machines remove burrs from edges and corners, improving assembly convenience and appearance; heat treatment equipment (such as mesh belt furnaces) strengthens their mechanical properties through quenching and tempering; surface treatment equipment (such as electroplating tanks and phosphating tanks) enhances corrosion resistance through electroplating, phosphating and other processes. The division of labor and cooperation among various types of equipment ensures the quality and production efficiency of the nuts.

[0003] However, in existing technologies, during the machining of hexagonal nuts, a large number of fine metal chips are generated during the high-speed cutting or grinding of the metal blank by the cutting tool. Due to the high temperature and static electricity during machining, these chips are easily adsorbed on key parts such as the cutting edge, chip groove, and working surface of the cutting tool, forming an adhesion layer that is difficult to remove naturally.

[0004] If these attached debris are not effectively cleaned in time, they will accumulate on the tool surface as the processing continues. When the tool comes into contact with the blank or semi-finished product of the hexagonal nut again, these hard metal debris will act as "abrasives," causing irregular scratches on the hexagonal edges, end faces, or inner walls of the nut during the relative movement between the tool and the nut surface, thus affecting the forming quality of the hexagonal nut. Utility Model Content

[0005] The purpose of this utility model is to solve the problems existing in the prior art by proposing a chip removal mechanism for machining external hexagonal nuts.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a chip removal mechanism for machining hexagonal nuts, comprising a base frame, wherein a limiting sleeve one and a limiting sleeve two are fixedly connected in the middle of the base frame, a rotating shaft one is rotatably connected to the inner side wall of the limiting sleeve one, and a rotating shaft two is rotatably connected to the inner side wall of the limiting sleeve two, a machining tool is fixedly connected to the end of the rotating shaft one, an hexagonal nut is installed at the end of the rotating shaft two, an arc-shaped cover one is installed on the upper surface of the base frame, a support plate is fixedly connected to the inner side wall of the arc-shaped cover one, a conical slab is fixedly connected to the upper surface of the support plate, and the arc-shaped cover one is positioned directly opposite the side of the machining tool.

[0007] Preferably, a servo motor is fixedly connected to the outer wall of the base frame, and a gear is fixedly connected to the output end of the servo motor.

[0008] Preferably, gear one meshes with gear two on the outer side wall of gear one, and gear three meshes with the outer side wall of gear two.

[0009] Preferably, the transmission ratio between gear one and gear two is 2:1.

[0010] Preferably, the end of the first rotating shaft is fixedly connected to the third gear, and the end of the second rotating shaft is fixedly connected to the first gear.

[0011] Preferably, a top frame is fixedly connected to the top of the base frame, and an axial flow fan is provided on the surface of the top frame.

[0012] Preferably, an arc-shaped cover is provided below the axial flow fan, and one side opening of the arc-shaped cover faces the side of the arc-shaped cover.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, after cutting the external hexagonal nut, the three cantilevered blades of the machining tool are prone to adhering to debris. If not cleaned, this will reduce the sharpness of the blades and the machining accuracy. The arc-shaped cover corresponds to the 120-degree rotation range after the blade leaves the workpiece. The airflow generated by the axial flow fan is guided by the arc-shaped cover and its velocity increases as it passes through the gradually narrowing channel between the conical plates on the support plate. This effectively disperses the debris on the blades, ensuring that the blades always maintain good sharpness. This, in turn, guarantees the accuracy of subsequent grinding of the external hexagonal nut, reduces machining errors caused by debris residue, and improves the stability of product quality.

[0015] 2. In this invention, rotating shaft one and rotating shaft two are connected by a connecting rod structure. The distance between them can be changed by adjusting this connecting rod structure. When processing hexagonal nuts of different specifications, there is no need to change the processing tool. Simply adjust the distance between rotating shaft one and rotating shaft two according to the specific specifications to adapt it to the hexagonal nuts to be processed. This greatly reduces the cost and time of equipment replacement and adjustment, improves production efficiency, and enhances the applicability of the equipment in different production scenarios. Attached Figure Description

[0016] Figure 1 A three-dimensional structural diagram of a chip removal mechanism for machining external hexagonal nuts is provided for this utility model;

[0017] Figure 2 This utility model provides a schematic diagram of the upper structure of the base frame of a chip removal mechanism for machining external hexagonal nuts;

[0018] Figure 3 This utility model provides a schematic diagram of the structure below the top frame of a chip removal mechanism for machining external hexagonal nuts;

[0019] Figure 4This utility model presents a three-dimensional structural diagram of an axial flow fan in a chip removal mechanism for machining external hexagonal nuts.

[0020] Legend: 1. Base frame; 2. Top frame; 3. Axial flow fan; 4. Servo motor; 5. Arc-shaped cover one; 6. Machining tool; 7. Gear one; 8. Gear two; 9. Gear three; 10. Limiting sleeve one; 11. Rotating shaft one; 12. Limiting sleeve two; 13. Rotating shaft two; 14. Arc-shaped cover two; 15. Conical sill plate; 16. Support plate. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1: As Figures 1-4 As shown, this utility model provides a chip removal mechanism for machining hexagonal nuts, including a base frame 1. A limiting sleeve 10 and a limiting sleeve 2 12 are fixedly connected in the middle of the base frame 1. A rotating shaft 11 is rotatably connected to the inner side wall of the limiting sleeve 10, and a rotating shaft 2 13 is rotatably connected to the inner side wall of the limiting sleeve 2 12. A machining tool 6 is fixedly connected to the end of the rotating shaft 11. The hexagonal nut is installed at the end of the rotating shaft 2 13. An arc-shaped cover 5 is installed on the upper surface of the base frame 1. A support plate 16 is fixedly connected to the inner side wall of the arc-shaped cover 5. A conical plate 15 is fixedly connected to the upper surface of the support plate 16. The arc-shaped cover 5 is positioned directly opposite the side of the machining tool 6.

[0024] The specific settings and functions of this embodiment are described below. During the production of the external hexagonal nut, the rotating shaft 11 drives the machining tool 6 to rotate. A magnet is installed at the end of the rotating shaft 13 to temporarily position the original external hexagonal nut. The original external hexagonal nut has undergone preliminary machining of the external hexagonal shape. The outer surface of the external hexagonal nut is cut and ground using the cutting tool 6. By controlling a certain transmission ratio, an external hexagonal cut surface is formed. After each cut, the cutting tool 6 may have some debris on its cutting tool, which affects the sharpness of subsequent cutting tools. If it is not cleaned in time, it will affect the accuracy of subsequent grinding of the external hexagonal nut. The outer wall of the 6 is provided with three blade cantilever arms, and the angle swept by each blade after cutting is 120 degrees. An arc-shaped cover 5 is provided above the base frame 1. The arc-shaped cover 5 corresponds to the 120-degree rotation range after the blade leaves the external hexagonal nut. During this process, the shaped airflow generated in the arc-shaped cover 5 blows away the debris on the blade. At the same time, a support plate 16 is provided inside the arc-shaped cover 5, and conical grates 15 are provided at equal intervals in the support plate 16. The airflow gradually narrows the channel width between the conical grates 15. Under the same flow rate, reducing the passage space can enhance the flow rate, making it easier to blow away the debris attached to the blade surface.

[0025] Example 2: Figure 2 and Figure 3 As shown, a servo motor 4 is fixedly connected to the outer wall of the base frame 1, and a gear 7 is fixedly connected to the output end of the servo motor 4. A gear 8 meshes with the outer wall of gear 7, and a gear 9 meshes with the outer wall of gear 8. The transmission ratio of gear 7 and gear 8 is 2:1. The end of the rotating shaft 11 is fixedly connected to gear 9, and the end of the rotating shaft 13 is fixedly connected to gear 7. A top frame 2 is fixedly connected to the top of the base frame 1, and an axial flow fan 3 is installed on the surface of the top frame 2. An arc-shaped cover 14 is installed below the axial flow fan 3, and one side opening of the arc-shaped cover 14 faces the side of the arc-shaped cover 5.

[0026] The overall effect of this embodiment is that, in order to synchronously process the external hexagonal nut with the cutting tool 6, a servo motor 4 is installed at the other end of the base frame 1. The servo motor 4 drives the gear 7 to rotate. Since the transmission ratio between gear 7 and gear 9 is 2:1, the external hexagonal nut can be completely cut and processed with each rotation. At the same time, there is a connecting rod structure between the rotating shaft 11 and the rotating shaft 13. The distance between the two can be changed by adjusting the connecting rod structure. For details, please refer to the appendix. Figure 2 The explanation is that this design effectively adjusts the distance between the machining tool 6 and the external hexagonal nut. When machining external hexagonal nuts of different specifications, there is no need to replace the machining tool 6. It is only necessary to change the distance between the rotating shaft 11 and the rotating shaft 2 13 to make it suitable for machining the external hexagonal nut.

[0027] The operating method and working principle of this device are as follows: Servo motor 4 drives gear 7 to rotate, gear 7 meshes with gear 8, gear 8 meshes with gear 9, and the transmission ratio of gear 7 and gear 8 is 2:1, which in turn causes rotating shaft 11 to drive the machining tool 6 to rotate. The end of rotating shaft 213 is positioned by a magnet to shape the outer hexagonal nut. The three blades of machining tool 6 cantilever each cut and grind the outer surface of the outer hexagonal nut within a 120-degree range. At the same time, the axial flow fan 3 on the top frame 2 generates airflow, which is guided by arc-shaped cover 214 to arc-shaped cover 15. The airflow passes through the channel between the conical slats 15 on the support plate 16. As the channel width gradually narrows and the flow velocity increases, the debris on the blades of machining tool 6 is blown away and removed within a 120-degree range after the blades leave the outer hexagonal nut, ensuring the subsequent machining accuracy. The distance between rotating shaft 11 and rotating shaft 213 can be changed by adjusting the linkage structure to adapt to the machining of outer hexagonal nuts of different specifications.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A chip removal mechanism for machining external hexagonal nuts, comprising a base frame (1), characterized in that: The base frame (1) is fixedly connected to a limiting sleeve one (10) and a limiting sleeve two (12) in the middle. The inner side wall of the limiting sleeve one (10) is rotatably connected to a rotating shaft one (11). The inner side wall of the limiting sleeve two (12) is rotatably connected to a rotating shaft two (13). The end of the rotating shaft one (11) is fixedly connected to a machining tool (6). An external hexagonal nut is installed at the end of the rotating shaft two (13). An arc-shaped cover one (5) is installed on the upper surface of the base frame (1). The inner side wall of the arc-shaped cover one (5) is fixedly connected to a support plate (16). The upper surface of the support plate (16) is fixedly connected to a conical slab plate (15). The arc-shaped cover one (5) is positioned directly opposite the side of the machining tool (6).

2. The chip removal mechanism for machining external hexagonal nuts according to claim 1, characterized in that: A servo motor (4) is fixedly connected to the outer wall of the base frame (1), and a gear (7) is fixedly connected to the output end of the servo motor (4).

3. The chip removal mechanism for machining external hexagonal nuts according to claim 2, characterized in that: Gear 2 (8) meshes with the outer wall of gear 1 (7), and gear 3 (9) meshes with the outer wall of gear 2 (8).

4. The chip removal mechanism for machining external hexagonal nuts according to claim 3, characterized in that: The transmission ratio of gear one (7) and gear two (8) is 2:

1.

5. The chip removal mechanism for machining external hexagonal nuts according to claim 1, characterized in that: The end of the first rotating shaft (11) is fixedly connected to the third gear (9), and the end of the second rotating shaft (13) is fixedly connected to the first gear (7).

6. The chip removal mechanism for machining external hexagonal nuts according to claim 1, characterized in that: The top of the base frame (1) is fixedly connected to the top frame (2), and the surface of the top frame (2) is provided with an axial flow fan (3).

7. A chip removal mechanism for machining external hexagonal nuts according to claim 6, characterized in that: An arc-shaped cover (14) is provided below the axial flow fan (3), and one side opening of the arc-shaped cover (14) faces the side of the arc-shaped cover (5).

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