Tool changing mechanism of five-axis machining center

Abstract

The utility model discloses a five -axis machining center tool changing mechanism, including box, grating, crossbeam and moving frame, the box one side is fixed with grating, the both sides outer wall of box is equipped with guide rail no.

Description

Technical Field

[0001] This utility model belongs to the field of five-axis machining technology, specifically a tool changing mechanism for a five-axis machining center. Background Technology

[0002] Five-axis machining is an advanced CNC machining technology that achieves high-precision machining of workpieces with complex geometries by controlling the movement of the machining tool in five different axes. These five axes typically include three linear axes (X, Y, Z axes) and two rotary axes (A, B axes or A, C axes), which can move simultaneously or sequentially, allowing the machining tool to approach the workpiece surface from almost any angle.

[0003] While existing technologies can achieve certain workpiece processing effects, they suffer from drawbacks: the current five-axis machining devices lack effective and stable five-axis motion and dustproof protection from the grid, resulting in a poor workpiece processing environment and inaccurate operation, which affects the processing effect. In view of this, we propose a tool changing mechanism for a five-axis machining center to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a tool changing mechanism for a five-axis 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 tool changing mechanism for a five-axis machining center, comprising a housing, a grid, a crossbeam, and a movable frame. A grid is fixed to one side of the housing, and guide rails are provided on the outer walls of both sides of the housing. A crossbeam is installed on the upper end of the guide rails, and guide rails are provided on one side of the crossbeam. A movable frame is provided on the upper end of the guide rails, and guide rails are provided inside the movable frame. A machining head is provided inside the guide rails.

[0006] When in use, this device mainly utilizes guide rails one, two, and three for XYZ axis movement. Guide rail one is driven by a gear and rack mechanism, facilitating large lateral displacements. Guide rails two and three are driven by lead screws two and three, respectively, for precise displacement. The device uses a grid to shield one side of the housing, allowing only the machining head to be inserted into the grid to process objects on the workpiece positioning table. Utilizing the moving beam structure and the dustproof effect of the grid, it achieves efficient five-axis dust-free machining, making it highly practical.

[0007] Preferably, a rack is fixed to the inner wall of the guide rail, and a gear is rotatably mounted on the crossbeam and the mounting surface of the guide rail. The gear meshes with the rack, and the smooth movement of the crossbeam on the guide rail is achieved through the meshing transmission of the gear and rack. The transmission speed of the gear and rack is greater than that of the motion servo of the lead screw and the lead screw.

[0008] Preferably, a servo motor is provided inside the lower end of the crossbeam. The output shaft of the servo motor is fixedly connected to the rotation center of the upper end of the gear. The servo motor provides precise power output, enabling the gear to accurately respond to the commands of the control system, thereby improving the response speed and control accuracy of the entire system.

[0009] Preferably, the guide rail two is equipped with a lead screw two inside, and a servo motor two is fixed on one side of the guide rail two. The output shaft of the servo motor two is fixedly connected to the rotation center of one side of the lead screw two. The combined use of the lead screw two and the servo motor two ensures the precise positioning of the moving frame on the guide rail two and provides a stable motion trajectory for the processing head.

[0010] Preferably, the guide rail three is provided with a lead screw three inside, and a servo motor three is fixed on one side of the guide rail three. The output shaft of the servo motor three is fixedly connected to the rotation center of one side of the lead screw three. The cooperation between the lead screw three and the servo motor three enables the processing head to be finely adjusted in the vertical direction, which facilitates the stable insertion of the processing head between the grids.

[0011] Preferably, the box body is provided with side plates two on the upper and lower sides, and side plates one on the left and right sides. The provision of side plates one and two not only enhances the structural strength of the box body, but also effectively isolates the intrusion of external dust and impurities, ensuring a clean processing environment.

[0012] Preferably, a workpiece positioning stage is fixed inside the housing. The design of the workpiece positioning stage provides a stable processing platform for the workpiece, ensuring accurate alignment during the processing, and also facilitating quick workpiece replacement and positioning.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This five-axis machining center tool changing mechanism, through innovative structural design and a precision drive system, achieves accurate movement and efficient machining on the XYZ axes. The combination of gear rack and pinion drive system not only ensures the stability and accuracy of the machining process, but also improves the response speed and control precision of the equipment;

[0015] 2. This five-axis machining center tool changing mechanism features a grid and side plate design that effectively prevents dust and impurities from entering, ensuring a clean machining environment and thus achieving efficient five-axis dust-free machining. Furthermore, the workpiece positioning table further enhances the workpiece machining accuracy and ease of operation, making the entire device excellent in terms of practicality, stability, and precision. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a bottom view of the structure of this utility model;

[0018] Figure 3 This is an exploded view of the structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the crossbeam structure of this utility model;

[0020] Figure 5 The structure of this utility model Figure 1 Enlarged schematic diagram of structure A in the middle.

[0021] In the picture:

[0022] 1. Housing; 2. Grille; 3. Guide rail 1; 4. Servo motor 1; 5. Rack; 6. Servo motor 2; 7. Lead screw 2; 8. Moving frame; 9. Guide rail 2; 10. Workpiece positioning table; 11. Side plate 1; 12. Side plate 2; 13. Gear; 14. Crossbeam; 15. Lead screw 3; 16. Guide rail 3; 17. Servo motor 3. 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 1-5 This utility model provides a technical solution: a tool changing mechanism for a five-axis machining center, including a housing 1, a grid 2, a crossbeam 14 and a movable frame 8. The grid 2 is fixed on one side of the housing 1, and guide rails 3 are provided on the outer walls of both sides of the housing 1. The crossbeam 14 is installed on the upper end of the guide rails 3. The second guide rail 9 is provided on one side of the crossbeam 14. The movable frame 8 is provided on the upper end of the second guide rail 9. The third guide rail 16 is provided inside the movable frame 8, and the machining head is provided inside the third guide rail 16.

[0025] A rack 5 is fixed to the inner wall of guide rail 13. A gear 13 is rotatably mounted on the mounting surface of guide rail 14 and guide rail 13. The gear 13 meshes with the rack 5. Through the meshing transmission of the gear 13 and the rack 5, the smooth movement of the crossbeam 14 on guide rail 13 is realized. The transmission speed of the gear 13 and the rack 5 is greater than that of the lead screw 2 7 and lead screw 3 15.

[0026] A servo motor 4 is installed inside the lower end of the crossbeam 14. The output shaft of the servo motor 4 is fixedly connected to the rotation center of the upper end of the gear 13. The servo motor 4 provides precise power output, enabling the gear 13 to accurately respond to the commands of the control system, thereby improving the response speed and control accuracy of the entire system.

[0027] The guide rail 29 is equipped with a lead screw 27 inside, and a servo motor 26 is fixed on one side inside the guide rail 29. The output shaft of the servo motor 26 is fixedly connected to the rotation center of one side of the lead screw 27. The combined use of the lead screw 27 and the servo motor 26 ensures the precise positioning of the moving frame 8 on the guide rail 29, providing a stable motion trajectory for the processing head.

[0028] The guide rail 316 has a lead screw 315 inside, and a servo motor 317 is fixed on one side inside the guide rail 316. The output shaft of the servo motor 317 is fixedly connected to the rotation center of one side of the lead screw 315. The cooperation between the lead screw 315 and the servo motor 317 enables the processing head to be finely adjusted in the vertical direction, which facilitates the stable insertion of the processing head into the grid 2.

[0029] The box body 1 has side panels 2 12 on the top and bottom sides, and side panels 11 on the left and right sides. The side panels 11 and 2 12 not only enhance the structural strength of the box body 1, but also effectively isolate the intrusion of external dust and impurities, ensuring a clean processing environment.

[0030] The housing 1 has a workpiece positioning table 10 fixed inside. The design of the workpiece positioning table 10 provides a stable processing platform for the workpiece, ensuring accurate alignment during the processing, and also facilitating quick workpiece replacement and positioning.

[0031] Working principle:

[0032] When in use, this device mainly utilizes guide rail 1 (3), guide rail 2 (9), and guide rail 3 (16) for XYZ axis movement. Guide rail 1 (3) is driven by gear 13 and rack 5, facilitating large lateral displacements. Guide rail 2 (9) and guide rail 3 (16) are driven by lead screw 2 (7) and lead screw 3 (15), facilitating precise displacements. The device uses a grid 2 to shield one side of the housing 1, allowing only the processing head to be inserted into the grid 2 to process the workpiece on the workpiece positioning table 10. Utilizing the moving beam structure and the dustproof effect of the grid 2, it achieves efficient five-axis dust-free machining, making it highly practical.

[0033] 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 tool changing mechanism for a five-axis machining center, comprising a housing (1), a grid (2), a crossbeam (14), and a moving frame (8), characterized in that: A grid (2) is fixed on one side of the box body (1). Guide rails (3) are provided on the outer walls of both sides of the box body (1). A crossbeam (14) is installed on the upper end of the guide rails (3). A guide rail (9) is provided on one side of the crossbeam (14). A movable frame (8) is provided on the upper end of the guide rails (9). A guide rail (16) is provided inside the movable frame (8). A processing head is provided inside the guide rails (16).

2. The tool changing mechanism for a five-axis machining center according to claim 1, characterized in that: A rack (5) is fixed to the inner wall of the guide rail (3), and a gear (13) is rotatably mounted on the crossbeam (14) and the mounting surface of the guide rail (3), and the gear (13) meshes with the rack (5).

3. The tool changing mechanism for a five-axis machining center according to claim 2, characterized in that: The lower end of the crossbeam (14) is equipped with a servo motor (4), and the output shaft of the servo motor (4) is fixedly connected to the rotation center of the upper end of the gear (13).

4. The tool changing mechanism for a five-axis machining center according to claim 1, characterized in that: The guide rail 2 (9) is equipped with a lead screw 2 (7) inside. A servo motor 2 (6) is fixed on one side inside the guide rail 2 (9). The output shaft of the servo motor 2 (6) is fixedly connected to the rotation center on one side of the lead screw 2 (7).

5. The tool changing mechanism for a five-axis machining center according to claim 1, characterized in that: The guide rail three (16) is equipped with a lead screw three (15) inside. A servo motor three (17) is fixed on one side inside the guide rail three (16). The output shaft of the servo motor three (17) is fixedly connected to the rotation center on one side of the lead screw three (15).

6. The tool changing mechanism for a five-axis machining center according to claim 1, characterized in that: The box (1) has two side panels (12) on the upper and lower sides, and one side panel (11) on the left and right sides.

7. The tool changing mechanism for a five-axis machining center according to claim 1, characterized in that: The box (1) has a workpiece positioning stage (10) fixed inside.

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