Self-boring machining device of speed reducer

By combining pneumatic control and a counterweight device, the problem of unstable voltage and current in the electric-driven self-boring machining device was solved, and high-precision machining of the reducer output end mounting base was achieved.

CN224182123UActive Publication Date: 2026-05-01JIANGSU GUOMAO REDUCER GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU GUOMAO REDUCER GRP CO LTD
Filing Date
2025-05-06
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

In existing gear reducer self-boring machining devices, electric drive causes unstable voltage and current in the wires, affecting machining accuracy.

Method used

The pneumatically controlled self-boring machining device is connected to the air pipe via a rotary joint, ensuring airflow stability. Combined with a counterweight device, it eliminates the oil gap in the output shaft, achieving precise positioning.

Benefits of technology

The machining accuracy of the gearbox output end mounting base has been improved, avoiding the accuracy error caused by electric drive and ensuring machining precision.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a self-boring machining device of a speed reducer, which relates to the technical field of speed reducers and comprises a speed reducer main body, a speed reducer output shaft and a speed reducer output end mounting seat concentric with the speed reducer output shaft. A switching cylinder is arranged on the face, away from the output shaft of the speed reducer, of the coupler, a sliding rail is arranged on the bottom face of the switching cylinder, a digital display grating ruler is arranged on the top face of the sliding rail, and a sliding base moving transversely is arranged on the top face of the sliding rail. The positions of the machining device and the speed reducer output end mounting seat are pneumatically controlled, so that the machining device is positioned at the spigot position of the output end of the speed reducer mounting seat for machining, and meanwhile, the adapter is arranged between the adapter cylinder and the air pipe, so that the airflow stability of the air pipe cannot be influenced when the adapter cylinder rotates; and compared with an electric drive machining device, the pneumatic drive machining device is more accurate in positioning.
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Description

A self-boring machining device for a speed reducer Technical Field

[0001] This utility model relates to the field of speed reducer technology, and in particular to a self-boring machining device for speed reducers. Background Technology

[0002] Gear reducers are commonly used mechanical transmission devices and are now available in a series. Manufacturers can design and process gear reducers according to user needs to meet specific requirements. Some gear reducers require the output end mounting face to connect with the transmitted equipment not only axially but also radially. This places high demands on the machining accuracy of the gear reducer output end mounting face. However, after assembly, these types of gear reducers often have problems such as non-compliance of coaxiality and perpendicularity between the output shaft and the positioning stop on the housing mounting face, resulting in substandard product quality.

[0003] The applicant discovered through a search that a Chinese patent discloses "Self-boring tooling and self-boring process for thrust pack of reducer for single screw extruder", with publication number "CN115430855A". This patent mainly uses a motor controller to drive the motor in the X direction and the motor in the Y direction, so that the tool holder moves to the corresponding position on the reducer mounting base for self-boring. However, in actual use, if a rotary joint is added between the wire and the motor, it will cause the voltage and current of the wire to be unstable, which will lead to a decrease in processing accuracy. Summary of the Invention

[0004] The purpose of this utility model is to provide a self-boring machining device for a speed reducer, so as to solve the problem mentioned in the background art that the current and voltage of the wires are unstable when the electric self-boring machining device is used, which leads to a decrease in the machining accuracy of the speed reducer mounting base.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a self-boring machining device for a speed reducer, comprising a speed reducer body, a speed reducer output shaft, and a speed reducer output end mounting base concentric with the speed reducer output shaft. One end of the speed reducer output shaft is fixedly connected to a coupling. A transfer cylinder is provided on the side of the coupling away from the speed reducer output shaft. A slide rail is provided on the bottom surface of the transfer cylinder. A digital display grating ruler is provided on the top surface of the slide rail. A laterally movable slide block is provided on the top surface of the slide block. An end face cutter is fixedly connected to one end of the top surface of the slide block. A rotary joint is fixedly connected to one side of the transfer cylinder. An air pipe is fixedly connected to the end of the rotary joint away from the transfer cylinder. A counterweight device is fixedly connected to one side of the speed reducer body. An input pulley is fixedly connected to one end of the speed reducer body.

[0006] Preferably, a longitudinal cylinder is fixedly connected to the bottom surface of the adapter cylinder, the output end of the longitudinal cylinder is fixedly connected to the coupling, and the adapter cylinder communicates with the longitudinal cylinder.

[0007] Preferably, a transverse cylinder is fixed on one side of the adapter cylinder, the output end of the transverse cylinder is fixedly connected to the slide, the adapter cylinder is connected to the transverse cylinder, and an adapter valve is provided on the top surface of the adapter cylinder.

[0008] Preferably, a start / stop switch is fixedly connected to the outer wall of the trachea, and a pressure adjustment switch is also fixedly connected to the outer wall of the trachea.

[0009] Preferably, the counterweight device includes a screw fixedly connected to the output shaft of the reducer, a counterweight ring sleeved on the outer diameter of the screw, a pressure plate located above the counterweight ring sleeved on the outer diameter of the screw, and a nut located above the pressure plate threadedly connected to the outer diameter of the screw.

[0010] The technical effects and advantages of this utility model are as follows: This utility model uses pneumatic control to position the processing device and the output end mounting base of the reducer, so that the processing device is positioned at the stop position of the output end of the reducer mounting base for processing. At the same time, there is an adapter between the transfer cylinder and the air pipe, so that the airflow stability of the air pipe will not be affected when the transfer cylinder rotates. Compared with the positioning of the electric drive processing device, the positioning of this pneumatic drive processing device is more accurate. Attached Figure Description

[0011] Figure 1 is a top view of the structure of this utility model.

[0012] Figure 2 is a magnified schematic diagram of the structure at point A in Figure 1.

[0013] Figure 3 is a magnified structural diagram of point B in Figure 1.

[0014] In the diagram: 1. Reducer body; 2. Reducer output mounting base; 3. Reducer output shaft; 4. Coupling; 5. Slide rail; 51. Digital display grating ruler; 6. Slide block; 61. End face cutter; 7. Adapter cylinder; 701. Longitudinal cylinder; 71. Rotary joint; 72. Air pipe; 73. Start / stop switch; 74. Pressure adjustment switch; 8. Transverse cylinder; 9. Adapter valve; 10. Input pulley; 11. Counterweight ring; 12. Screw; 13. Nut; 14. Pressure plate. Detailed Implementation

[0015] 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.

[0016] This utility model provides a self-boring machining device for a speed reducer, as shown in Figures 1-3. It includes a speed reducer body 1, a speed reducer output shaft 3, and a speed reducer output end mounting base 2 concentric with the speed reducer output shaft 3. A coupling 4 is fixedly connected to one end of the speed reducer output shaft 3. A transition cylinder 7 is provided on the side of the coupling 4 away from the speed reducer output shaft 3. A slide rail 5 is provided on the bottom surface of the transition cylinder 7, and a digital display grating ruler 51 is provided on the top surface of the slide rail 5. A laterally movable slide block 6 is provided on the top surface of the slide block 5. An end face cutter 61 is fixedly connected to one end of the top surface of the slide block 6. A rotary joint 71 is fixedly connected to one side of the transition cylinder 7, and an air pipe 72 is fixedly connected to the end of the rotary joint 71 away from the transition cylinder 7. A counterweight device is fixedly connected to one side of the speed reducer body 1, and an input pulley 10 is fixedly connected to one end of the speed reducer body 1. During use, the coupling 4 is fixed to... On the reducer output shaft 3, the distance between the slide rail 5 and the reducer output end mounting seat 2 is adjusted. Then, the slide 6 drives the processing device to move to the positioning stop position of the reducer output end mounting seat 2. Then, the input belt pulley 10 drives the reducer output shaft 3 to rotate, which in turn drives the slide rail 5 to rotate, so that the processing device processes the positioning stop position of the reducer output end mounting seat 2. When the reducer output shaft 3 rotates, the adapter cylinder 7 rotates synchronously. Since there is a rotary joint 71 between the air pipe 72 and the adapter cylinder 7, the air pipe 72 will not rotate with the rotation of the adapter cylinder 7. By pneumatically controlling the positioning stop position of the processing device and the reducer output end mounting seat 2, the processing accuracy is more precise than that of the electric drive processing device, avoiding the accuracy error caused by the instability of voltage and current in electric drive.

[0017] As shown in Figure 1, a longitudinal cylinder 701 is fixedly connected to the bottom surface of the adapter cylinder 7. The output end of the longitudinal cylinder 701 is fixedly connected to the coupling 4. The adapter cylinder 7 is connected to the longitudinal cylinder 701.

[0018] As shown in Figure 1, a transverse cylinder 8 is fixed on one side of the transfer cylinder 7. The output end of the transverse cylinder 8 is fixedly connected to the slide block 6. The transfer cylinder 7 is connected to the transverse cylinder 8. A transfer valve 9 is provided on the top surface of the transfer cylinder 7. The transfer valve 9 can control the transfer cylinder 7 to supply air to the transverse cylinder 8 and the longitudinal cylinder 701, thereby controlling the transverse and longitudinal movement of the processing device.

[0019] As shown in Figure 1, the processing device includes an end face cutter 61 fixed to one end of the slide 6.

[0020] As shown in Figure 3, a start / stop switch 73 is fixedly connected to the outer wall of the trachea 72, and a pressure adjustment switch 74 is also fixedly connected to the outer wall of the trachea 72.

[0021] As shown in Figure 2, the counterweight device includes a screw 12 fixedly connected to the output shaft 3 of the reducer. A counterweight ring 11 is sleeved on the outer diameter of the screw 12, and a pressure plate 14 located above the counterweight ring 11 is also sleeved on the outer diameter of the screw 12. A nut 13 located above the pressure plate 14 is threadedly connected to the outer diameter of the screw 12. Addressing the issue that the entire mechanism of the electrically driven self-boring device and the output shaft system of the reducer lack counterweight to eliminate the oil gap in the reducer's output shaft, resulting in excessive machining accuracy, this utility model also incorporates a counterweight device to eliminate the oil gap in the reducer's output shaft 3, thereby improving machining accuracy.

[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-boring machining device for a speed reducer, comprising a speed reducer body (1), a speed reducer output shaft (3), and a speed reducer output end mounting base (2) concentric with the speed reducer output shaft (3), characterized in that: One end of the output shaft (3) of the reducer is fixedly connected to a coupling (4). The side of the coupling (4) away from the output shaft (3) of the reducer is provided with a transfer cylinder (7). The bottom surface of the transfer cylinder (7) is provided with a slide rail (5). The top surface of the slide rail (5) is provided with a digital display grating ruler (51). The top surface of the slide rail (5) is provided with a transversely movable slide block (6). One end of the top surface of the slide block (6) is fixedly connected to an end face cutter (61). One side of the transfer cylinder (7) is fixedly connected to a rotary joint (71). The end of the rotary joint (71) away from the transfer cylinder (7) is fixedly connected to an air pipe (72). One side of the reducer body (1) is fixedly connected to a counterweight device. One end of the reducer body (1) is fixedly connected to an input belt pulley (10).

2. The self-boring machining device for a speed reducer according to claim 1, characterized in that: The bottom surface of the adapter cylinder (7) is fixedly connected to a longitudinal cylinder (701), the output end of the longitudinal cylinder (701) is fixedly connected to the coupling (4), and the adapter cylinder (7) is connected to the longitudinal cylinder (701).

3. The self-boring machining device for a speed reducer according to claim 2, characterized in that: One side of the adapter cylinder (7) is fixed with a transverse cylinder (8). The output end of the transverse cylinder (8) is fixedly connected to the slide (6). The adapter cylinder (7) is connected to the transverse cylinder (8). The top surface of the adapter cylinder (7) is provided with an adapter valve (9).

4. A self-boring device for a speed reducer according to claim 1, characterized in that: A start / stop switch (73) is fixedly connected to the outer wall of the air pipe (72), and a pressure adjustment switch (74) is also fixedly connected to the outer wall of the air pipe (72).

5. A self-boring device for a speed reducer according to claim 1, characterized in that: The counterweight device includes a screw (12) fixedly connected to the output shaft (3) of the reducer. The outer diameter of the screw (12) is fitted with a counterweight ring (11). The outer diameter of the screw (12) is also fitted with a pressure plate (14) located above the counterweight ring (11). The outer diameter of the screw (12) is threadedly connected with a nut (13) located above the pressure plate (14).

Citation Information

Patent Citations

  • Self-boring tool and self-boring process for thrust package of speed reducer special for single-screw extruder

    CN115430855A