An improved structure for 3D carving milling machines

Abstract

This utility model discloses an improved structure for a three-dimensional carving milling machine, which includes a worktable. A workpiece holder for placing the carving is mounted on the top of the worktable. Four movable rods are movably connected to the worktable. A first connecting shaft is fixedly connected between the upper parts of any two adjacent movable rods. Four second connecting shafts arranged in a rectangular pattern are fixedly mounted on the top of the worktable. Folding baffles are connected between the upper and lower opposing first and second connecting shafts. A dual-axis motor is mounted in the middle of the bottom of the worktable. Transmission components for adjusting the height of the movable rods are mounted on both sides of the bottom of the worktable. The two output ends of the dual-axis motor are connected to the two transmission components. This improved structure for a three-dimensional carving milling machine features a height-adjustable and foldable protective structure. This structure can be raised and unfolded before milling to provide protection and shielding, effectively preventing high-temperature flying debris from scratching or burning workers.

Description

Technical Field

[0001] This utility model belongs to the field of milling machine technology, specifically an improved structure for a three-dimensional engraving milling machine. Background Technology

[0002] 3D engraving milling machines are high-precision CNC machining equipment widely used in mold making, art engraving, woodworking, advertising production, and other fields. Their main function is to perform complex 3D engraving and milling on material surfaces using cutting tools, capable of processing various materials such as metal, plastic, and wood. The equipment is typically equipped with a powerful CNC system that controls the cutting path through computer-aided design (CAD / CAM) software, ensuring the accuracy and detail of the engraving. 3D engraving milling machines offer high efficiency, good repeatability, and flexibility, making them suitable for small-batch production and personalized customization. Modern equipment can also be combined with laser, sandblasting, and other technologies to expand the engraving effects.

[0003] Existing conventional 3D engraving milling machines lack protective structures. Because milling machines generate a large amount of high-temperature flying debris when machining metal workpieces, the high-temperature flying debris can easily scratch or burn the operators, thus posing a safety hazard. Therefore, improvements are needed to address the above issues. Utility Model Content

[0004] To achieve the above objectives, this utility model provides the following technical solution: an improved structure for a three-dimensional carving milling machine, including a worktable. A workpiece placement seat for placing the carving is mounted on the top of the worktable. Four adjustable movable rods are movably connected to the worktable, arranged in a rectangular pattern. A first connecting shaft is fixedly connected between the upper parts of any two adjacent movable rods. Four second connecting shafts arranged in a rectangular pattern are fixedly mounted on the top of the worktable, located directly below the first connecting shafts. Folding baffles connect the upper and lower opposite first and second connecting shafts. A dual-output shaft motor is mounted in the middle of the bottom of the worktable. Transmission components for adjusting the height of the movable rods are mounted on both sides of the bottom of the worktable. The two output ends of the dual-output shaft motor are connected to the two transmission components.

[0005] Preferably, each of the four folding baffles includes four transparent plastic plates and three hinges. The four transparent plastic plates are connected by the three hinges to effectively fold and extend. The uppermost transparent plastic plate is rotatably connected to the first connecting shaft, and the lowermost transparent plastic plate is rotatably connected to the second connecting shaft, so that it can be effectively unfolded to wrap and protect the workpiece placement seat and facilitate observation.

[0006] Preferably, the workbench has four through square holes arranged in a rectangular pattern. The surfaces of the four moving rods are all square structures, and the four moving rods are movably inserted into the four through square holes. The surfaces of the four moving rods are all provided with vertical grooves, and racks are fixedly installed inside the vertical grooves.

[0007] Preferably, each of the two transmission components includes a pair of fixed blocks, the two pairs of fixed blocks are symmetrically fixed at both ends of the bottom of the workbench, and a first transmission shaft is rotatably connected between each pair of fixed blocks. Gears located inside vertical grooves are fixedly installed on both sides of the two first transmission shafts. The gears mesh with racks, and worm gears are fixedly installed in the middle of the two first transmission shafts. The two worm gears are symmetrically arranged, thereby enabling effective transmission.

[0008] Preferably, two worm gears are symmetrically and rotatably mounted at both ends of the bottom of the workbench. The two worm gears are respectively meshed with two worm wheels. The two output ends of the dual-shaft motor are respectively connected to the two worm gears via a second transmission shaft, thereby enabling effective adjustment.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: The improved structure of this 3D engraving milling machine has a liftable and foldable protective structure. This liftable and foldable protective structure can be moved up and unfolded before the milling machine cuts to play a protective role, thereby effectively avoiding the high-temperature flying debris generated by cutting from scratching or burning the workers, effectively improving the safety of milling machine processing. At the same time, the improved structure of this milling machine is simple in design, convenient and easy to use, and its adjustment and protection are stable and reliable. Its performance can meet the usage requirements of 3D engraving milling machine processing. Attached Figure Description

[0010] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0011] In the attached diagram:

[0012] Figure 1 This is a schematic diagram of the improved milling machine structure for three-dimensional engraving according to this utility model;

[0013] Figure 2 This utility model Figure 1 A partial structural diagram;

[0014] Figure 3 This utility model Figure 1 A partial sectional view of the structure;

[0015] Figure 4 This is a cross-sectional structural diagram of the present invention 3;

[0016] In the diagram: 1. Workbench; 2. Workpiece placement seat; 3. Moving rod; 4. First connecting shaft; 5. Second connecting shaft; 6. Folding baffle; 7. Dual-shaft motor; 8. Transmission component; 9. Transparent plastic sheet; 10. Hinge; 11. Through square hole; 12. Vertical groove; 13. Rack; 14. Fixing block; 15. First transmission shaft; 16. Gear; 17. Worm gear; 18. Worm; 19. Second transmission shaft. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0018] Depend on Figures 1 to 4 The present invention includes a workbench 1, a workpiece placement seat 2 for placing engraved parts is installed on the top of the workbench 1, four adjustable moving rods 3 are movably inserted into the workbench 1, the four moving rods 3 are arranged in a rectangular distribution, a first connecting shaft 4 is fixedly connected between the upper parts of any two adjacent moving rods 3, four second connecting shafts 5 arranged in a rectangular distribution are fixedly installed on the top of the workbench 1, the second connecting shafts 5 are located directly below the first connecting shafts 4, and folding baffles 6 are connected between the upper and lower opposite first connecting shafts 4 and second connecting shafts 5, a dual-output shaft motor 7 is installed in the middle of the bottom of the workbench 1, and transmission components 8 for adjusting the height of the moving rods 3 are installed on both sides of the bottom of the workbench 1, the two output ends of the dual-output shaft motor 7 are connected to the two transmission components 8.

[0019] Each of the four folding baffles 6 includes four transparent plastic plates 9 and three hinges 10. The four transparent plastic plates 9 are connected by the three hinges 10, which can effectively fold and extend. The uppermost transparent plastic plate 9 is rotatably connected to the first connecting shaft 4, and the lowermost transparent plastic plate 9 is rotatably connected to the second connecting shaft 5, so that it can be effectively unfolded to wrap and protect the workpiece placement seat 2 and facilitate observation.

[0020] The workbench 1 has four through square holes 11 arranged in a rectangular pattern. The surfaces of the four moving rods 3 are all square, and the four moving rods 3 are movably inserted into the four through square holes 11. The surfaces of the four moving rods 3 are all provided with vertical grooves 12, and racks 13 are fixedly installed inside the vertical grooves 12. The two transmission components 8 each include a pair of fixing blocks 14, and the two pairs of fixing blocks 14 are symmetrically fixed at both ends of the bottom of the workbench 1. A first transmission shaft 15 is rotatably connected between each pair of fixing blocks 14. Gears 16 located inside the vertical grooves 12 are fixedly installed on both sides of the two first transmission shafts 15. The gears 16 mesh with the racks 13. Worm gears 17 are fixedly installed in the middle of the two first transmission shafts 15. The two worm gears 17 are symmetrically arranged, so as to effectively transmit power.

[0021] Two worm gears 18 are symmetrically and rotatably mounted at both ends of the bottom of the workbench 1. The two worm gears 18 are respectively meshed with two worm wheels 17. The two output ends of the dual-shaft motor 7 are respectively connected to the two worm gears 18 via a second transmission shaft 19, which enables effective adjustment.

[0022] Specifically, see the attached diagram. Figure 1 As shown, the four folding baffles 6 move upward and unfold to wrap around and protect the workpiece placement seat 2. When the workpiece on the workpiece placement seat 2 is subjected to three-dimensional cutting and carving, the high-temperature flying debris generated will be blocked by the four folding baffles 6 to prevent scratches or burns to the workers who are operating.

[0023] When the four folding baffles 6 need to be lowered, the two second drive shafts 19 are rotated by starting the dual output shaft motor 7. The rotation of the two second drive shafts 19 will cause the two worm gears 18 to rotate, which in turn will drive the two worm wheels 17 to rotate. The rotation of the two worm wheels 17 will drive the two first drive shafts 15 and the two gears 16 on the first drive shafts 15 to rotate. The rotation of the gears 16 will drive the rack 13 to move the four moving rods 3 downward inside the four through square holes 11. The downward movement of the four moving rods 3 will drive the four first connecting shafts 4 to move downward. The downward movement of the four first connecting shafts 4 will cause the four transparent plastic plates 9 on each folding baffle 6 to rotate and fold through the three hinges 10 and the second connecting shafts 5, thereby facilitating the placement of the workpiece on the workpiece placement seat 2 or the removal of the workpiece from the workpiece placement seat 2.

[0024] This improved milling machine structure for 3D engraving features a liftable and foldable protective structure. This structure can be raised and unfolded before milling to provide protection and shielding, effectively preventing high-temperature flying debris from scratching or burning workers and significantly improving the safety of milling operations. Furthermore, this improved milling machine structure is simple in design, easy to use, and offers stable and reliable adjustment and protection. Its performance meets the requirements of 3D engraving milling operations.

Claims

1. An improved structure for a three-dimensional carving milling machine, comprising a worktable (1), characterized in that: The top of the workbench (1) is equipped with a workpiece placement seat (2) for placing the engraved parts. Four adjustable moving rods (3) are movably inserted into the workbench (1). The four moving rods (3) are arranged in a rectangular pattern. A first connecting shaft (4) is fixedly connected between the upper parts of any two adjacent moving rods (3). Four second connecting shafts (5) arranged in a rectangular pattern are fixedly installed on the top of the workbench (1). The second connecting shafts (5) are located directly below the first connecting shafts (4). Folding baffles (6) are connected between the first connecting shafts (4) and the second connecting shafts (5) that are opposite each other. A dual-output shaft motor (7) is installed in the middle of the bottom of the workbench (1). Transmission components (8) for adjusting the height of the moving rods (3) are installed on both sides of the bottom of the workbench (1). The two output ends of the dual-output shaft motor (7) are connected to the two transmission components (8).

2. The improved structure of a three-dimensional carving milling machine according to claim 1, characterized in that: Each of the four folding baffles (6) includes four transparent plastic plates (9) and three hinges (10). The four transparent plastic plates (9) are connected by the three hinges (10) so that they can be effectively folded and extended. The uppermost transparent plastic plate (9) is rotatably connected to the first connecting shaft (4), and the lowermost transparent plastic plate (9) is rotatably connected to the second connecting shaft (5).

3. The improved structure of a three-dimensional carving milling machine according to claim 1, characterized in that: The workbench (1) has four through square holes (11) arranged in a rectangular shape. The surfaces of the four moving rods (3) are all square structures, and the four moving rods (3) are movably inserted into the four through square holes (11). The surfaces of the four moving rods (3) are all provided with vertical grooves (12), and racks (13) are fixedly installed inside the vertical grooves (12).

4. The improved structure of a three-dimensional carving milling machine according to claim 3, characterized in that: Both of the transmission components (8) include a pair of fixed blocks (14). The two pairs of fixed blocks (14) are symmetrically fixed at both ends of the bottom of the workbench (1). A first transmission shaft (15) is rotatably connected between each pair of fixed blocks (14). Gears (16) located inside the vertical groove (12) are fixedly installed on both sides of the two first transmission shafts (15). The gears (16) mesh with the rack (13). A worm gear (17) is fixedly installed in the middle of the two first transmission shafts (15). The two worm gears (17) are symmetrically arranged.

5. The improved structure of a three-dimensional carving milling machine according to claim 4, characterized in that: Two worm gears (18) are symmetrically rotated at both ends of the bottom of the workbench (1). The two worm gears (18) are respectively meshed with two worm wheels (17). The two output ends of the dual-output motor (7) are respectively connected to the two worm gears (18) via a second transmission shaft (19).

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