Three-axis numerical control milling machine

Abstract

The utility model relates to three -axis machine tool technical field discloses a three -axis numerical control milling machine, its characterized in that, including lathe, the longitudinal slide of lathe is provided with the slide seat, the horizontal slide of slide seat on is provided with the slide seat, the fixed setting of slide seat on is provided with the stand, the vertical slide of stand on is provided with the milling head, is provided with milling cutter on the milling head, the longitudinal feed transmission mechanism is set up between slide seat and lathe, the horizontal feed transmission mechanism is set up between slide seat and slide seat, the vertical feed transmission mechanism is set up between milling head and stand, the support plate is set up on the milling head, the protective cover is set up on the support plate, the protective cover includes a plurality of framework and cover body, the framework is connected with the support plate sliding, the cover body is fixed and is laid on a plurality of framework, the cover body extends to the below of framework end, the drive mechanism for opening and folding of protective cover is set up on the support plate. The utility model can realize the three -axis movement of milling head, is provided with the protective cover simultaneously and protects, avoids the iron filings splash when processing.

Description

Technical Field

[0001] This utility model relates to the field of three-axis machine tool technology, and in particular to a three-axis CNC milling machine. Background Technology

[0002] Three-axis CNC milling machines, as core equipment in modern machining, are widely used in milling, drilling, tapping, and other machining processes in fields such as mold making, aerospace, and automotive parts. Through a computer numerical control system, the machine tool is driven to move precisely along the X, Y, and Z linear axes, enabling the machining of complex shapes on workpieces.

[0003] During metal cutting, the high-speed rotation of the cutting tool in contact with the workpiece generates a large amount of high-temperature chips (commonly known as metal filings). These metal filings typically fly outwards at high speed, posing an inherent and significant problem in milling operations. Some current CNC machine tools are equipped with protective cabinets, where cutting operations are performed. However, some existing milling machines do not have protective cabinets. To prevent metal filings from flying out, a new type of CNC milling machine is needed to solve this problem. Utility Model Content

[0004] The purpose of this invention is to provide a three-axis CNC milling machine that can realize three-axis movement of the milling head, and is equipped with a protective cover to prevent iron filings from flying during processing.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A three-axis CNC milling machine includes a machine tool, a lower slide block longitudinally slidable on the machine tool, an upper slide block transversely slidable on the lower slide block, a column fixedly mounted on the upper slide block, a milling head vertically slidable on the column, a milling cutter mounted on the milling head, a longitudinal feed transmission mechanism between the lower slide block and the machine tool, a transverse feed transmission mechanism between the lower slide block and the upper slide block, a vertical feed transmission mechanism between the milling head and the column, a support plate on the milling head, and a protective cover on the support plate. The protective cover includes several frames and a cover body, the frames are slidably connected to the support plate, the cover body is fixedly laid on the several frames, and the cover body extends below the ends of the frames. A drive mechanism for opening and closing the protective cover is provided on the support plate.

[0006] As a further feature of this invention, the longitudinal feed transmission mechanism includes a first linear guide rail and a first ball screw disposed between the lower slide and the machine tool, and the first ball screw is connected to a servo motor.

[0007] As a further feature of this invention, the transverse feed transmission mechanism includes a second linear guide rail and a second ball screw disposed between the upper slide and the lower slide, and the second ball screw is connected to a servo motor.

[0008] As a further feature of this invention, the vertical feed transmission mechanism includes a third linear guide rail and a third ball screw disposed between the column and the milling head, and the third ball screw is connected to a servo motor.

[0009] As a further feature of this invention, one side of the support plate is arc-shaped, and an arc-shaped guide rod is provided on the arc-shaped side of the support plate. The skeleton located at one end of the guide rod is fixedly connected to the guide rod, and the other skeletons are slidably connected to the guide rod. The driving mechanism is connected to one of the skeletons at the other end of the guide rod.

[0010] As a further feature of this invention, a plurality of guide rings are slidably disposed on the guide rod. Except for the skeleton fixed to the guide rod, the remaining skeletons correspond one-to-one with the guide rings and are fixedly connected to each other.

[0011] As a further feature of this utility model, the driving mechanism includes a rotating plate rotatably connected to the support plate. The rotating plate is connected to a frame at the other end of the guide rod. A large gear is coaxially fixed on the rotating plate. The large gear meshes with a small gear. The small gear is rotatably connected to the support plate and is also connected to a drive motor.

[0012] As a further feature of this invention, the bottom diameter of the protective cover is larger than the top diameter.

[0013] The beneficial effects of this utility model are: This utility model discloses a three-axis CNC milling machine, which enables the milling head to move along the x, y, and z axes through the action of a longitudinal feed transmission mechanism, a transverse feed transmission mechanism, and a vertical feed transmission mechanism. Additionally, a protective cover is added to the milling head; the cover can be opened and closed by controlling the sliding of the frame on the support plate via a drive motor. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this embodiment; Figure 2 This is a schematic diagram of the protective cover structure in this embodiment; Figure 3 This is a schematic diagram of the protective cover from another perspective in this embodiment; In the diagram, 1. Machine tool, 2. Lower slide, 3. Upper slide, 4. Column, 5. Milling head, 6. Longitudinal feed transmission mechanism, 7. Transverse feed transmission mechanism, 8. Vertical feed transmission mechanism, 9. Support plate, 10. Protective cover, 11. Frame, 12. Cover body, 13. Guide rod, 14. Guide ring, 15. Rotating plate, 16. Large gear, 17. Small gear, 18. Drive motor. Detailed Implementation

[0016] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0017] A three-axis CNC milling machine, reference Figures 1 to 3 The system includes a machine tool 1, a lower slide seat 2 that slides longitudinally on the machine tool 1, an upper slide seat 3 that slides laterally on the lower slide seat 2, a column 4 that is fixedly mounted on the upper slide seat 3, a milling head 5 that slides vertically on the column 4, a milling cutter that is mounted on the milling head 5, a longitudinal feed transmission mechanism 6 that is provided between the lower slide seat 2 and the machine tool 1, a transverse feed transmission mechanism 7 that is provided between the lower slide seat 2 and the upper slide seat 3, and a vertical feed transmission mechanism 8 that is provided between the milling head 5 and the column 4. Through the action of the longitudinal feed transmission mechanism 6, the transverse feed transmission mechanism 7 and the vertical feed transmission mechanism 8, the milling head 5 can achieve three-axis movement in the xyz axes.

[0018] The longitudinal feed transmission mechanism 6 includes a first linear guide rail and a first ball screw disposed between the lower slide 2 and the machine tool 1, and the first ball screw is connected to a servo motor.

[0019] The transverse feed transmission mechanism 7 includes a second linear guide rail and a second ball screw disposed between the upper slide 3 and the lower slide 2, and the second ball screw is connected to a servo motor.

[0020] The vertical feed transmission mechanism 8 includes a third linear guide and a third ball screw disposed between the column 4 and the milling head 5, and the third ball screw is connected to a servo motor.

[0021] A support plate 9 is provided on the milling head 5, and a protective cover 10 is provided on the support plate 9. The protective cover 10 is used to surround the milling cutter within a certain range to prevent iron filings from flying during machining. The protective cover 10 includes several skeletons 11 and a cover body 12. The skeletons 11 are slidably connected to the support plate 9, and the cover body 12 is fixedly laid on the several skeletons 11. The cover body 12 extends to the lower part of the ends of the skeletons 11. A drive mechanism for opening and closing the protective cover 10 is provided on the support plate 9.

[0022] Furthermore, one side of the support plate 9 is arc-shaped so that the frame 11 can slide and unfold along the arc-shaped support plate 9. After unfolding, it can surround the area in front of the milling cutter to prevent iron filings from flying.

[0023] The sliding connection between the frame 11 and the support plate 9 is achieved through the guide rod 13 and the guide ring 14. The support plate 9 has an arc-shaped guide rod 13 on one side of the arc shape, and the guide ring 14 is slidably arranged on the guide rod 13. Among the multiple frames 11, the frame 11 located on the outermost side is fixedly connected to the guide rod 13 to fix the position of the entire protective cover 10 when it is opened and closed. The other frames 11 are fixedly connected to a guide ring 14 respectively. When the frame 11 moves, it drives the guide ring 14 to move on the guide rod 13.

[0024] The drive mechanism includes a rotating plate 15 rotatably connected to the support plate 9. The rotating plate 15 is connected to the outermost frame 11 on the opposite side of the fixed frame 11. A large gear 16 is coaxially fixed on the rotating plate 15. The large gear 16 is meshed with a small gear 17. The small gear 17 is rotatably connected to the support plate 9 and is also connected to a drive motor 18.

[0025] During operation, the drive motor 18 drives the pinion 17 to rotate, which in turn drives the large gear 16 to rotate, thereby driving the rotating plate 15 to rotate. During the rotation of the rotating plate 15, the rotating plate 15 drives the edge frame 11 to move. During the movement of the frame 11, the cover 12 gradually drives the other frames 11 to move until the entire protective cover 10 is opened. When the protective cover 10 is closed, the drive motor 18 drives the pinion 17 to rotate in the opposite direction, and the frame 11 pushes the adjacent frame 11 to slowly close. The cover 12 is folded between the two frames 11.

[0026] In this embodiment, the end of the frame 11 is higher than the position of the milling cutter to avoid interference between the frame 11 and the workpiece when the milling cutter moves downward during machining. The downward extension of the cover 12 increases the protection range. In addition, the protective cover 10 is configured such that the bottom diameter is larger than the top diameter to further increase the protection range.

[0027] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements 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 three-axis CNC milling machine, characterized in that, The machine tool includes a machine tool (1), on which a lower slide seat (2) is longitudinally slidably mounted, and an upper slide seat (3) is laterally slidably mounted on the lower slide seat (2). A column (4) is fixedly mounted on the upper slide seat (3), and a milling head (5) is vertically slidably mounted on the column (4). A milling cutter is mounted on the milling head (5). A longitudinal feed transmission mechanism (6) is provided between the lower slide seat (2) and the machine tool (1), and a transverse feed transmission mechanism (7) is provided between the lower slide seat (2) and the upper slide seat (3). The milling head (5) and the column (6) are connected. 4) A vertical feed transmission mechanism (8) is provided between them. A support plate (9) is provided on the milling head (5). A protective cover (10) is provided on the support plate (9). The protective cover (10) includes several skeletons (11) and a cover body (12). The skeletons (11) are slidably connected to the support plate (9). The cover body (12) is fixedly laid on several skeletons (11). The cover body (12) extends to the lower part of the end of the skeleton (11). A drive mechanism for opening and closing the protective cover (10) is provided on the support plate (9).

2. A three-axis CNC milling machine according to claim 1, characterized in that, The longitudinal feed transmission mechanism (6) includes a first linear guide rail and a first ball screw disposed between the lower slide (2) and the machine tool (1), and the first ball screw is connected to a servo motor.

3. A three-axis CNC milling machine according to claim 1, characterized in that, The transverse feed transmission mechanism (7) includes a second linear guide rail and a second ball screw disposed between the upper slide (3) and the lower slide (2), and the second ball screw is connected to a servo motor.

4. A three-axis CNC milling machine according to claim 1, characterized in that, The vertical feed transmission mechanism (8) includes a third linear guide and a third ball screw disposed between the column (4) and the milling head (5), and the third ball screw is connected to a servo motor.

5. A three-axis CNC milling machine according to claim 1, characterized in that, One side of the support plate (9) is arc-shaped, and an arc-shaped guide rod (13) is provided on the arc-shaped side of the support plate (9). The skeleton (11) located at one end of the guide rod (13) is fixedly connected to the guide rod (13), and the other skeletons (11) are slidably connected to the guide rod (13). The driving mechanism is connected to one of the skeletons (11) at the other end of the guide rod (13).

6. A three-axis CNC milling machine according to claim 5, characterized in that, A plurality of guide rings (14) are slidably disposed on the guide rod (13). Except for the skeleton (11) fixed to the guide rod (13), the other skeletons (11) correspond one-to-one with the guide rings (14) and are fixedly connected to each other.

7. A three-axis CNC milling machine according to claim 6, characterized in that, The driving mechanism includes a rotating plate (15) rotatably connected to the support plate (9). The rotating plate (15) is connected to a frame (11) at the other end of the guide rod (13). A large gear (16) is coaxially fixed on the rotating plate (15). A small gear (17) is meshed with the large gear (16). The small gear (17) is rotatably connected to the support plate (9) and is connected to a drive motor (18).

8. A three-axis CNC milling machine according to claim 1, characterized in that, The bottom diameter of the protective cover (10) is larger than the top diameter.

Images