Three-rail type pneumatic locking machining center

By designing a three-rail pneumatic locking machining center, the coordinated operation of multiple motors and guide rails solves the stability problem of existing machining centers when processing large workpieces, achieving efficient and precise machining results.

CN223989088UActive Publication Date: 2026-03-13DONGGUAN XINSEN AUTOMATION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-17
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Existing machining centers lack stable displacement control for the lower worktable, which leads to instability of the worktable and easy drive failure when machining large workpieces.

Method used

The machining center adopts a three-rail pneumatic locking design, which includes a horizontal worktable, three guide rails, and the coordinated operation of multiple rotating and linear motors. Precise control is achieved through the meshing of gears and racks, enhancing the stability and flexibility of the worktable.

Benefits of technology

It achieves efficient, fast and precise processing, improves processing flexibility and accuracy, enhances the stability and working efficiency of the device, and is suitable for complex processing tasks.

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Abstract

The three-rail type pneumatic locking machining center comprises a first base, a second base, a cross beam, a first moving plate, a second moving plate and guide rails, the cross beam is arranged at the upper end of the first base, the first moving plate is installed on one side of the cross beam in a sliding mode, a moving groove is fixed to one side of the first moving plate, and a rotating groove is formed in the lower end of the moving groove. A drill bit is arranged at the lower end of the rotating groove, a second base is arranged between the first bases, three guide rails are arranged at the upper end of the second base, and a transversely-designed workbench is arranged at the upper ends of the guide rails. According to the device, through coordinated work of the transversely-designed workbench and the multiple rotating motors and through the design of three guide rails, the rigidity and bearing capacity of the workbench are improved, the stability of linear motion is ensured, and the problems that due to the fact that an existing machining center lacks stable displacement control over the lower-end workbench, when a large workpiece is machined, the working efficiency is greatly improved are solved. And a working table is unstable, so that driving failure is easy to occur.
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Description

Technical Field

[0001] This utility model belongs to the technical field, specifically a three-rail pneumatic locking machining center. Background Technology

[0002] A machining center is a highly automated CNC machine tool that integrates multiple machining functions (such as milling, drilling, boring, tapping, etc.) and can complete multi-process machining of complex parts in a single setup. It is typically equipped with an automatic tool changer (ATC) system and a CNC system, enabling high-precision and high-efficiency machining. It is widely used in manufacturing for producing precision parts, molds, and other workpieces with complex geometries.

[0003] While existing technologies are feasible in use, they suffer from the following drawback: the lack of stable displacement control for the lower worktable in current machining centers leads to instability of the worktable and potential drive failure when machining large workpieces. In view of this, we propose a three-rail pneumatic locking machining center that solves the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a three-rail pneumatic locking machining center to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a three-rail pneumatic locking machining center, comprising a base one, a base two, a crossbeam, a movable plate one, a movable plate two, and guide rails. The upper end of the base one is provided with a crossbeam, and the movable plate one is slidably installed on one side of the crossbeam. A movable groove is fixed on one side of the movable plate one, and a rotating groove is provided at the lower end of the movable groove. A drill bit is provided at the lower end of the rotating groove. The base two is provided between the base one and the upper end of the base two is provided with three guide rails. A horizontally designed worktable is provided at the upper end of the guide rails.

[0006] Preferably, the upper end of the guide rail is provided with a second movable plate, the worktable is fixed to the upper end of the second movable plate, and the worktable is designed to be perpendicular to the crossbeam space.

[0007] Preferably, the lower end of the movable plate two is fixed with a mounting base, and a rotating motor four is fixed inside the mounting base. The output end of the rotating motor four is provided with a roller, and the roller is rotatably mounted inside the guide rail.

[0008] Preferably, a bracket is fixed to the upper end of the base, and the upper end of the bracket is fixedly connected to the lower end of the crossbeam.

[0009] Preferably, a mounting groove is fixed to one outer wall of the movable plate, a rotating motor is provided inside the mounting groove, a rack is fixed to one side of the upper end of the crossbeam, and a gear is fixed to the output shaft of the rotating motor, the gear meshing with the rack.

[0010] Preferably, a linear motor is fixed to one side of the outer wall of the movable plate, and the output end of the linear motor is fixedly connected to one side of the movable groove. The linear motor drives the movable groove to move up and down.

[0011] Preferably, a second rotating motor is fixed at the lower end of the moving groove, and the output shaft of the second rotating motor is fixedly connected to the rotation center at the upper end of the rotating groove. A third rotating motor is provided on one side of the rotating groove, and the output shaft of the third rotating motor is fixedly connected to the drill bit.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This three-rail pneumatic locking machining center achieves efficient, fast and precise machining through the coordinated work of a horizontally designed worktable, three guide rails, multiple rotary motors and linear motors. The three guide rails increase the load-bearing capacity of the worktable and its stable and smooth movement capability.

[0014] 2. This three-rail pneumatic locking machining center, through the meshing of gears and racks, precise control of linear motors, and flexible drive of rotary motors, allows the drill bit to move in multiple directions, thereby improving machining flexibility and accuracy. The overall design optimizes the stability and efficiency of the device, making it suitable for various complex machining tasks. Overall, this device demonstrates significant advantages in space utilization, machining efficiency, accuracy, and stability. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a side view of the structure of this utility model;

[0017] Figure 3 This is a top view of the structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the four positions of the rotating motor of this utility model.

[0019] Figure 5 This is a schematic diagram showing the positions of the rotating motor, gear, and rack of this utility model.

[0020] Figure 6 The structure of this utility model Figure 3 Enlarged schematic diagram of structure A in the middle.

[0021] In the picture:

[0022] 1. Base 1; 2. Bracket; 3. Mounting slot; 4. Linear motor; 5. Moving slot; 6. Crossbeam; 7. Rotating slot; 8. Drill bit; 9. Worktable; 10. Base 2; 11. Guide rail; 12. Rotating motor 3; 13. Moving plate 2; 14. Moving plate 1; 15. Rotating motor 1; 16. Rotating motor 4; 17. Mounting base; 18. Gear; 19. Rack; 20. Rotating motor 2. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-6 This utility model provides a technical solution: a three-rail pneumatic locking machining center, including a base 1, a base 2 10, a crossbeam 6, a moving plate 1 14, a moving plate 2 13, and guide rails 11. The upper end of the base 1 is provided with a crossbeam 6, and the moving plate 1 14 is slidably installed on one side of the crossbeam 6. The moving plate 1 14 is fixed with a moving groove 5 on one side. The lower end of the moving groove 5 is provided with a rotating groove 7. The lower end of the rotating groove 7 is provided with a drill bit 8. The base 2 10 is provided between the bases 1 and 10. The upper end of the base 2 10 is provided with three guide rails 11. The upper end of the guide rails 11 is provided with a horizontally designed worktable 9.

[0025] The upper end of the guide rail 11 is provided with a movable plate 2 13, and the worktable 9 is fixed on the upper end of the movable plate 2 13. The worktable 9 is designed to be perpendicular to the crossbeam 6. By designing the worktable 9 perpendicular to the crossbeam 6, the stability and rigidity of the crossbeam 6 are increased, making it more convenient to place and operate the workpiece, while improving the processing accuracy and stability.

[0026] The lower end of the movable plate 13 is fixed with a mounting base 17. The mounting base 17 is fixed with a rotating motor 16. The output end of the rotating motor 16 is equipped with a roller, which is rolled inside the guide rail 11. The roller driven by the rotating motor 16 rolls inside the guide rail 11, ensuring the stability and accuracy of the worktable 9 during longitudinal movement, reducing friction and vibration during movement, and thus improving the processing quality.

[0027] A bracket 2 is fixed to the upper end of the base 1. The upper end of the bracket 2 is fixedly connected to the lower end of the crossbeam 6. The design of the bracket 2 enhances the stability of the crossbeam 6, ensuring that the crossbeam 6 will not shake or shift during the processing, and further improves the processing accuracy and reliability of the device.

[0028] A mounting groove 3 is fixed to one side of the outer wall of the moving plate 14. A rotating motor 15 is installed inside the mounting groove 3. A rack 19 is fixed to one side of the upper end of the crossbeam 6. A gear 18 is fixed to the output shaft of the rotating motor 15. The gear 18 meshes with the rack 19. The gear 18 and the rack 19 are designed with helical teeth. Through the meshing of the gear 18 and the rack 19, the rotating motor 15 can accurately control the left and right movement of the moving plate 14, ensuring the accurate positioning of the drill bit 8 on the worktable 9 and improving the accuracy and efficiency of the machining.

[0029] A linear motor 4 is fixed to one side of the outer wall of the movable plate 14. The output end of the linear motor 4 is fixedly connected to one side of the movable groove 5. The linear motor 4 drives the movable groove 5 to move up and down. The use of the linear motor 4 enables the movable groove 5 to move up and down quickly and accurately.

[0030] A second rotating motor 20 is fixed at the lower end of the moving groove 5. The output shaft of the second rotating motor 20 is fixedly connected to the rotation center at the upper end of the rotating groove 7. A third rotating motor 12 is provided on one side of the rotating groove 7. The output shaft of the third rotating motor 12 is fixedly connected to the drill bit 8. The combined use of the second rotating motor 20 and the third rotating motor 12 enables the drill bit 8 to rotate and make small longitudinal movements, further expanding the processing capability of the drill bit 8 and enabling the device to handle more complex processing tasks.

[0031] Working Principle: When using this device, the workpiece to be processed can be placed directly on the worktable 9. The horizontally designed worktable 9 saves more workspace. Then, by coordinating the operation of rotating motors 15, 20, 312, and 416, the drill bit 8 can move left and right, rotate, and make small longitudinal movements on the upper part of the worktable 9. This, combined with the longitudinal movement of the worktable 9 driven by the three guide rails 11 at the lower end of the rotating motor 416, achieves efficient and rapid processing of surface workpieces. This device uses the three guide rails 11 to improve the rigidity and load-bearing capacity of the worktable 9, and makes the linear movement more stable. Overall optimization realizes the stability and efficiency of the device's operation.

[0032] 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 three-rail type pneumatic locking machining center comprising a base one (1), a base two (10), a crossbeam (6), a moving plate one (14), a moving plate two (13) and a guide rail (11), characterized in that: The upper end of the base one (1) is provided with a crossbeam (6), one side of the crossbeam (6) is slidably provided with a moving plate one (14), one side of the moving plate one (14) is fixedly provided with a moving groove (5), the lower end of the moving groove (5) is provided with a rotating groove (7), the lower end of the rotating groove (7) is provided with a drill bit (8), the base one (1) is provided with a base two (10) between, the upper end of the base two (10) is provided with three guide rails (11), the upper end of the guide rail (11) is provided with a workbench (9) designed transversely.

2. A three-rail, pneumatically-locked machining center according to claim 1, characterized in that: The upper end of the guide rail (11) is provided with a moving plate two (13), the workbench (9) is fixed to the upper end of the moving plate two (13), and the workbench (9) is designed perpendicularly in space with the crossbeam (6).

3. A three-rail, pneumatically-locked machining center according to claim 2, characterized in that: The lower end of the moving plate two (13) is fixedly provided with a mounting seat (17), the mounting seat (17) is fixedly provided with a rotating motor four (16) inside, the output end of the rotating motor four (16) is provided with a roller, and the roller is rollingly installed in the guide rail (11).

4. The three-rail, pneumatically-locked machining center of claim 1, wherein: The upper end of the base one (1) is fixedly provided with a support (2), and the upper end of the support (2) is fixedly connected with the lower end of the crossbeam (6).

5. The three-rail, pneumatically-locked machining center of claim 1, wherein: One side of the outer wall of the moving plate one (14) is fixedly provided with a mounting groove (3), the mounting groove (3) is provided with a rotating motor one (15) inside, one side of the upper end of the crossbeam (6) is fixedly provided with a rack (19), the output shaft of the rotating motor one (15) is fixedly provided with a gear (18), and the gear (18) is engaged with the rack (19).

6. A three-rail, pneumatically-locked machining center according to claim 1, characterized in that: One side of the outer wall of the moving plate one (14) is fixedly provided with a linear motor (4), the output end of the linear motor (4) is fixedly connected with one side of the moving groove (5), and the linear motor (4) drives the moving groove (5) to move up and down.

7. The three-rail, pneumatically-locked machining center of claim 1, wherein: The lower end of the moving groove (5) is fixedly provided with a rotating motor two (20) inside, the output shaft of the rotating motor two (20) is fixedly connected with the rotating center of the upper end of the rotating groove (7), one side of the rotating groove (7) is provided with a rotating motor three (12), and the output shaft of the rotating motor three (12) is fixedly connected with the drill bit (8).