A seven-axis CNC drilling and milling machine

By designing a seven-axis motion system on a CNC drilling and milling machine, including mechanical gears and rack systems driven by servo motors, as well as rotary workbench and linear motors drive spindles, the problem of low single-axis motion efficiency of traditional CNC drilling and milling machine workbench is solved, and multi-axis synchronous motion and multi-angle processing are achieved, which significantly improves drilling and milling efficiency.

CN222740809UActive Publication Date: 2025-04-11JINAN JINYA COMPIZED NUMERICAL CONTROL MACHINERY
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Patent Information

Application Number
CN202421475033.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-26
Publication Date
2025-04-11
Estimated Expiration
2034-06-26

AI Technical Summary

Technical Problem

The workbench of traditional CNC drilling and milling machines can only perform a single axis movement, resulting in low efficiency when drilling and milling the profile, reducing the practicality of the machine tool.

Method used

A seven-axis CNC drilling and milling machine is designed, using a servo motor to drive mechanical gears and rack systems to realize synchronous movement of the machine head in the X-axis and Y-axis directions, and drive the spindle through a rotating workbench and a linear motor to realize multi-angle machining and alternate use of the spindle to save tool change time.

Benefits of technology

Multi-axis synchronous motion is realized, drilling and milling efficiency is improved, and one material can be processed simultaneously or two materials with different processing requirements respectively. It is suitable for industrial applications of high-precision and complex processing.

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Abstract

The utility model relates to the field of CNC drilling and milling machines, and discloses a seven-axis CNC drilling and milling machine, including a machine body, a rail table fixedly connected to the top of the machine body, a plurality of mechanical racks slidably connected inside the rail table, a plurality of slides fixedly connected to the top of the rail table, a servo motor three fixedly connected to each of the side walls of the slides, a machine head fixedly connected to the output end of each of the servo motor three, the machine head slidably connected to the top of the slide, the bottom of the slide fixedly connected to the top of the mechanical rack, a servo motor one fixedly connected to the rear end of the slide, a mechanical gear fixedly connected to the output end of the servo motor one, and the mechanical gear meshing with the mechanical rack. In the utility model, the multi-axis synchronous motion of this drilling and milling machine is realized through the cooperation of structures such as the rail table, the machine head, and the control console, so that a single material can be processed simultaneously, and two materials with different processing requirements can be processed separately, thereby improving the drilling and milling efficiency.
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Description

Technical Field

[0001] The utility model relates to the field of numerically controlled drilling and milling machines, in particular to a seven-axis numerically controlled drilling and milling machine. Background Art

[0002] A CNC milling machine is a CNC machine tool that combines the functions of a drilling machine and a milling machine, and is equipped with a CNC system to precisely control the machining operations. It is commonly used in metal processing and manufacturing, and can perform a variety of complex machining operations, such as drilling, milling, cutting, and slotting. As an indispensable equipment in modern manufacturing, CNC milling machines continue to promote technological progress and efficiency improvement in industrial production, and provide important technical support for the precision machining of complex workpieces.

[0003] In traditional CNC drilling and milling machines, the bed is the main structure of the machine, usually made of cast iron or welded steel plates, with sufficient rigidity and stability to support the movement and processing of the entire machine tool. Various motion axes and processing heads are usually installed on the bed. The CNC system of the drilling and milling machine is the brain of the entire machine tool, responsible for controlling the movement of each motion axis and realizing the preset processing path and operation. The workbench is a plane installed on the bed, which can usually move along the X-axis and Y-axis directions. There are T-slots on the workbench to facilitate clamping and positioning of the workpiece. The movement of the workbench is driven by a servo motor, and precise position control is achieved through screw drive or gear drive.

[0004] However, the worktable in a traditional CNC drilling and milling machine is often unable to perform multi-axis motion simultaneously and can only perform single-axis motion through a drive. This single linear axis motion is inefficient when drilling and milling profiles, reducing the practicality of the drilling and milling machine. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a seven-axis CNC drilling and milling machine, which aims to improve the problem that the linear axis movement in the traditional CNC drilling and milling machine is low in efficiency when drilling and milling profiles, thereby reducing the practicality of the drilling and milling machine.

[0006] In order to achieve the above-mentioned objectives, the utility model adopts the following technical scheme: a seven-axis CNC drilling and milling machine, comprising a machine body, a rail platform fixedly connected to the top of the machine body, a plurality of mechanical racks slidably connected inside the rail platform, a plurality of slides fixedly connected to the top of the rail platform, each of the side walls of the slides is fixedly connected to a servo motor three, each of the output ends of the servo motor three is fixedly connected to a machine head, the machine head is slidably connected to the top of the slide, the bottom of the slide is fixedly connected to the top of the mechanical rack, the rear end of the slide is fixedly connected to a servo motor one, the output end of the servo motor one is fixedly connected to a mechanical gear, the mechanical gear is meshed with the mechanical rack, the top of each mechanical rack is fixedly connected to a machine head, and a control component is provided on the side wall of the machine body, and the control component is used to control the CNC system.

[0007] Furthermore, the control assembly includes a control console, and the control console is fixedly connected to the side wall of the machine body.

[0008] Furthermore, a servo motor 2 is fixedly connected to the side wall of the machine body, and an output shaft is fixedly connected to the output end of the servo motor 2.

[0009] Furthermore, the output shaft is rotatably connected to the inside of the machine body, and one end of the output shaft is fixedly connected to a rotating worktable.

[0010] Furthermore, the outer wall of the rotating worktable is rotatably connected to the interior of the rotating worktable.

[0011] Furthermore, each of the side walls of the machine head is fixedly connected to a plurality of linear motors, and an output end of the linear motor is fixedly connected to a main shaft.

[0012] Furthermore, the side wall of the machine head is fixedly connected with a plurality of slide rails.

[0013] Furthermore, the main shaft is slidably connected inside the slide rail.

[0014] The utility model has the following beneficial effects:

[0015] In the utility model, firstly, the servo motor is started to drive the mechanical gear to rotate, and then the mechanical rack can slide inside the rail table and drive the machine head to move in the x-axis. The three outputs of the servo motor push the machine head so that the machine head slides on the top of the slide table to realize the y-axis movement of the machine head. This structure realizes the multi-axis synchronous movement of the drilling and milling machine, and can process a single material at the same time or two materials with different processing requirements separately, thereby improving the drilling and milling efficiency.

[0016] In the utility model, the rotary table is driven by the two outputs of the servo motor to rotate inside the machine body, which can effectively solve the processing needs of the workpiece at different angles. The workpiece can be clamped at any angle for processing at one time to ensure the relative position accuracy of each hole groove. At the same time, multiple linear motors drive the spindle to slide inside the slide rail, so that the two spindles can be used alternately, effectively saving the time of changing tools and improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of a seven-axis CNC drilling and milling machine proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the rail structure of a seven-axis CNC drilling and milling machine proposed by the utility model;

[0019] Figure 3 The utility model is a side view of a seven-axis CNC drilling and milling machine.

[0020] Legend:

[0021] 1. Machine body; 2. Track table; 3. Mechanical rack; 4. Servo motor one; 5. Mechanical gear; 6. Servo motor three; 7. Machine head; 8. Control console; 9. Servo motor two; 10. Output shaft; 11. Rotary worktable; 12. Linear motor; 13. Slide rail; 14. Spindle; 15. Slide table. DETAILED DESCRIPTION

[0022] 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.

[0023] Reference Figure 1-Figure 2 The utility model provides an embodiment: a seven-axis CNC drilling and milling machine, including a body 1, a rail platform 2 is fixedly connected to the top of the body 1, a plurality of mechanical racks 3 are slidably connected inside the rail platform 2, a plurality of slides 15 are fixedly connected to the top of the rail platform 2, a servo motor three 6 is fixedly connected to the side wall of each slide 15, an output end of each servo motor three 6 is fixedly connected to a machine head 7, the machine head 7 is slidably connected to the top of the slide 15, the bottom of the slide 15 is fixedly connected to the top of the mechanical rack 3, a servo motor one 4 is fixedly connected to the rear end of the slide 15, a mechanical gear 5 is fixedly connected to the output end of the servo motor one 4, the mechanical gear 5 is meshed with the mechanical rack 3, each mechanical rack 3 is fixedly connected to the top of the machine head 7, and a control component is arranged on the side wall of the body 1, and the control component is used to control the CNC system.

[0024] Specifically, start the servo motor 4, which drives the mechanical gear 5 to rotate by outputting a rotational force. The meshing relationship between the mechanical gear 5 and the mechanical rack 3 enables the mechanical rack 3 to slide inside the rail table 2. The sliding of the mechanical rack 3 drives the head 7 installed on the top thereof to move in the X-axis direction. In order to achieve movement in the Y-axis direction, the operator can start the servo motor 3 6, which drives the same gear rack system inside the head 7, so that the head 7 can slide on the top of the slide 15, thereby achieving movement in the Y-axis direction. Through the control console 8, the user can perform CNC programming and accurately control the movement of the X-axis and Y-axis. This structural design enables the CNC drilling and milling machine to achieve multi-axis synchronous movement, not only can it process one material at the same time, but also can process two materials with different processing requirements separately. This flexibility greatly improves the drilling and milling efficiency and is suitable for various industrial applications requiring high precision and complex processing.

[0025] Reference Figure 3 The control component includes a control console 8, which is fixedly connected to the side wall of the machine body 1. A servo motor 9 is fixedly connected to the side wall of the machine body 1. An output shaft 10 is fixedly connected to the output end of the servo motor 9. The output shaft 10 is rotatably connected to the inside of the machine body 1. One end of the output shaft 10 is fixedly connected to a rotary table 11. The outer wall of the rotary table 11 is rotatably connected to the inside of the rotary table 11. A plurality of linear motors 12 are fixedly connected to the side wall of each machine head 7. A spindle 14 is fixedly connected to the output end of the linear motor 12. A plurality of slide rails 13 are fixedly connected to the side wall of the machine head 7. The spindle 14 is slidably connected to the inside of the slide rail 13.

[0026] Specifically, the operator starts the servo motor 29, and the servo motor 29 outputs a rotational force through the output shaft 10 to rotate the output shaft 10. This rotation drives one end of the rotary table 11 to rotate inside the machine body 1, and the profile fixed on the surface of the rotary table 11 rotates accordingly, effectively solving the processing needs of the workpiece at different angles. This design allows the workpiece to be clamped once and then processed at any angle, ensuring the relative position accuracy of each hole groove. At the same time, the linear motor 12 on the side wall of the machine head 7 drives the spindle 14 to slide inside the slide rail 13, so that the two spindles 14 can be used alternately. This arrangement significantly reduces the time for changing tools and greatly improves processing efficiency. Such facility design is not only suitable for multi-angle drilling, but can also be applied to other processes that require multi-angle processing, making the processing process more flexible and efficient.

[0027] Working principle: When using this CNC drilling and milling machine, start the servo motor 4, and the servo motor 4 outputs a rotating force to the mechanical gear 5 to drive the mechanical gear 5 to rotate. At this time, the meshing relationship between the mechanical gear 5 and the mechanical rack 3 drives the mechanical rack 3 to slide inside the rail table 2. The sliding of the mechanical rack 3 can drive the head 7 on the top of the mechanical rack 3 to realize the x-axis movement. By starting the servo motor three 6 to drive the same gear rack system inside the head 7 to move, the head 7 is driven to slide on the top of the slide 15 to realize the y-axis movement of the head 7, and both can be realized through the control console 8. CNC programming can be realized, and this structure realizes the multi-axis synchronous movement of this drilling and milling machine, which can process a single material at the same time and can also process two different materials separately. The materials with the same processing requirements improve the drilling and milling efficiency. When it is necessary to change the angle of the profile to perform multi-angle drilling and other processing procedures, the servo motor 29 is started. The servo motor 29 outputs a rotating force to the output shaft 10 to drive the output shaft 10 to rotate. The output shaft 10 then drives the rotary table 11 at one end to rotate inside the machine body 1. At this time, the profile fixed on the surface of the rotary table 11 can be rotated to effectively solve the processing needs of the workpiece at different angles. The workpiece can be clamped at any angle for processing at one time to ensure the relative position accuracy of each hole groove. The linear motor 12 on the side wall of the machine head 7 drives the spindle 14 to slide inside the slide rail 13, so that the two spindles 14 can be used alternately, effectively saving tool changing time and improving efficiency.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A seven-axis CNC drilling and milling machine, comprising a machine body (1), characterized in that: The top of the machine body (1) is fixedly connected to a rail platform (2), and a plurality of mechanical racks (3) are slidably connected inside the rail platform (2). The top of the rail platform (2) is fixedly connected to a plurality of slides (15), and the side wall of each slide (15) is fixedly connected to a servo motor three (6), and the output end of each servo motor three (6) is fixedly connected to a machine head (7), and the machine head (7) is slidably connected to the top of the slide (15), and the bottom of the slide (15) is fixedly connected to the top of the mechanical rack (3). The rear end of the slide (15) is fixedly connected to a servo motor one (4), and the output end of the servo motor one (4) is fixedly connected to a mechanical gear (5), and the mechanical gear (5) is meshed with the mechanical rack (3). The top of each mechanical rack (3) is fixedly connected to the machine head (7), and the side wall of the machine body (1) is provided with a control component, and the control component is used to control the numerical control system.

2. The seven-axis CNC drilling and milling machine according to claim 1, characterized in that: The control component comprises a control console (8), and the control console (8) is fixedly connected to the side wall of the machine body (1).

3. The seven-axis CNC drilling and milling machine according to claim 2, characterized in that: A servo motor 2 (9) is fixedly connected to the side wall of the machine body (1), and an output shaft (10) is fixedly connected to the output end of the servo motor 2 (9).

4. The seven-axis CNC drilling and milling machine according to claim 3, characterized in that: The output shaft (10) is rotatably connected to the inside of the machine body (1), and one end of the output shaft (10) is fixedly connected to a rotating worktable (11).

5. The seven-axis CNC drilling and milling machine according to claim 4, characterized in that: The outer wall of the rotating worktable (11) is rotatably connected to the interior of the rotating worktable (11).

6. The seven-axis CNC drilling and milling machine according to claim 1, characterized in that: A plurality of linear motors (12) are fixedly connected to the side wall of each machine head (7), and a main shaft (14) is fixedly connected to the output end of the linear motor (12).

7. The seven-axis CNC drilling and milling machine according to claim 6, characterized in that: A plurality of slide rails (13) are fixedly connected to the side wall of the machine head (7).

8. The seven-axis CNC drilling and milling machine according to claim 7, characterized in that: The main shaft (14) is slidably connected inside the slide rail (13).