Three-axis numerical control machining center for metal processing

Abstract

The application discloses a three-axis numerical control machining center for metal machining, which comprises a frame body, a workbench and a work main body arranged in the frame body, a lifting plate arranged in the frame body, a protective cover fixedly connected to the frame body, a central shaft connected to the protective cover, and a driven cylinder fixedly connected to the side surface of the central shaft. The three-axis numerical control machining center is characterized in that the workbench, the work main body, the lifting plate, the protective cover, the central shaft, the driven cylinder, connecting ropes, a large gear, a side shaft, a small gear and fan blades are cooperated with each other. In the process of use, the force generated in the lifting process of the lifting plate is utilized to rotate the fan blades, the debris generated in the machining is blown away by the fan blades, the debris is prevented from being accumulated, the debris is also prevented from being accumulated on other components, the device can be stably moved, the added structure is low in cost, the cost is not increased too much, the work burden of workers is reduced, and the device is convenient to use.

Description

Technical Field

[0001] This invention relates to the field of metal processing technology, specifically to a three-axis CNC machining center for metal processing. Background Technology

[0002] Metalworking is a production activity that processes metal materials, encompassing manufacturing processes from large industrial parts to precision components. It is widely used in fields such as machinery manufacturing, automobiles, aerospace, science, art, and handicrafts. The metalworking process requires the use of many machines, including three-axis CNC machining centers. However, existing CNC machining centers do not have the function of converting the lifting force of the machining head into a blowing force. Either a separate slag removal mechanism is required, or manual cleaning is necessary. One increases costs significantly, and the other increases the workload of workers, resulting in unsatisfactory performance.

[0003] A search revealed a three-axis drilling machining center with publication number CN223685748U, comprising: a conveying mechanism, a positioning mechanism, a clamping mechanism, a tool magazine mechanism, and an electric spindle mechanism mounted on a frame; the conveying mechanism for conveying the material to be processed; the positioning mechanism for positioning the material to be processed; the clamping mechanism for clamping the material to be processed at a predetermined position; and the electric spindle mechanism for taking and taking tools from the tool magazine mechanism and processing the clamped material to be processed. This technical solution also suffers from the aforementioned technical problems. Summary of the Invention

[0004] The purpose of this invention is to provide a three-axis CNC machining center for metal processing to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a three-axis CNC machining center for metal processing, comprising a frame, a worktable and a main working body disposed within the frame, a lifting plate disposed within the frame, a protective cover fixedly connected within the frame, a central shaft mounted and connected to the protective cover, a driven cylinder fixedly connected to the side of the central shaft, a connecting rope wound around the surface of the driven cylinder, and the end of the connecting rope away from the driven cylinder being fixedly connected to the lifting plate.

[0006] Optionally, the frame includes a base plate and a top plate disposed above the base plate. A support column is fixedly connected to the top of the base plate, and the top of the support column is fixedly connected to the bottom of the top plate. Support legs are fixedly connected to the bottom of the base plate.

[0007] Optionally, a hydraulic cylinder is fixedly installed on the top of the top plate, the output shaft of the hydraulic cylinder is fixedly connected to the top of the lifting plate, and the working body is fixedly installed on the bottom of the lifting plate.

[0008] Optionally, a movable beam is provided in the opening on the base plate, and a slider is slidably disposed in the movable beam, with the worktable fixedly connected to the top of the slider.

[0009] Optionally, a linear motor is provided above the base plate, and the moving end of the linear motor is fixedly connected to the moving beam.

[0010] Optionally, a track is fixedly connected to the inner wall of the movable beam, the slider is slidably connected to the surface of the track, a second hydraulic cylinder is fixedly installed on the side of the movable beam, a drive block is fixedly connected to the output shaft of the second hydraulic cylinder, and the drive block is fixedly connected to the slider.

[0011] Optionally, a large gear is fixedly connected to the end of the central shaft away from the driven cylinder, a side shaft is rotatably mounted on the protective cover, a small gear that meshes with the large gear is fixedly connected to the surface of the side shaft, a fan blade is fixedly connected to the end of the side shaft, and a coil spring is fixedly connected to the surface of the central shaft.

[0012] Optionally, a notch is provided on one side of the protective cover, and a baffle is movably inserted into the notch.

[0013] Optionally, the top of the base plate is provided with a slot, and the bottom of the baffle is fixedly connected with an insert plate, which is movably inserted into the slot.

[0014] Optionally, a fixed clamping plate and a side plate are fixedly connected to the top of the workbench, and a movable clamping plate is connected to the side of the side plate through a limiting telescopic rod. A threaded rod is threadedly connected to the side plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention utilizes the coordinated operation of a worktable, main body, lifting plate, protective cover, central shaft, driven cylinder, connecting rope, large gear, side shaft, small gear, and fan blades. During use, the force generated by the lifting plate's movement causes the fan blades to rotate, blowing away processing debris and preventing its accumulation. This also prevents debris from accumulating on other components, ensuring stable operation of the device. The added structure is low-cost, does not significantly increase the overall cost, reduces the workload of operators, and is easy to use.

[0016] This invention, through the cooperation of a base plate, top plate, support column, support leg, hydraulic cylinder one, moving beam, slider, linear motor, track, hydraulic cylinder two, and drive block, enables the worktable to perform dual-axis movement during use, adjusting the position of items fixed on the top of the worktable. Furthermore, the specific shape of the moving beam and track light can effectively prevent debris accumulation, allowing debris to fall off properly.

[0017] This invention utilizes the cooperation of a protective cover, baffle, slot, insert plate, fixed clamping plate, side plate, limiting telescopic rod, movable clamping plate, and threaded rod to shield flying debris during use. It also allows workers to easily remove the baffle and retrieve or place items through the opening in the baffle corresponding to the protective cover, resulting in high safety and convenient access to items.

[0018] The present invention, through the setting of the side opening and the guide wheel, can guide the direction of the connecting rope, which is conducive to guiding and transmitting the driving force generated by the lifting of the lifting plate, and is easy to use.

[0019] This invention, by setting up a controller, ensures greater precision in the entire processing, a high degree of automation, and ease of use. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the front view of the present invention; Figure 2 This is a three-dimensional structural diagram of the invention from a bottom view; Figure 3 This is a three-dimensional structural schematic diagram of the exploded view of the present invention; Figure 4 This is a three-dimensional structural schematic diagram of the front view of the lifting plate and moving beam of the present invention. Figure 5 This is a three-dimensional structural schematic diagram of the lifting plate and moving beam of the present invention from a bottom view. Figure 6 This is a three-dimensional sectional view of the front view of the movable beam and slider of the present invention; Figure 7 This is a first-view three-dimensional structural diagram of the large gear and small gear of the present invention. Figure 8 This is a two-dimensional structural diagram of the large gear and small gear of the present invention from a second perspective. Figure 9 This is a three-dimensional exploded view of the track and slider of the present invention; Figure 10 This is a three-dimensional structural diagram of the guide wheel of the present invention; Figure 11 This is a three-dimensional structural diagram of the threaded rod and fastening ring of the present invention.

[0021] In the diagram: 1. Workbench, 2. Main body, 3. Lifting plate, 4. Protective cover, 5. Central shaft, 6. Driven cylinder, 7. Connecting rope, 8. Base plate, 9. Top plate, 10. Support column, 11. Outrigger, 12. Hydraulic cylinder one, 13. Moving beam, 14. Slider, 15. Linear motor, 16. Track, 17. Hydraulic cylinder two, 18. Drive block, 19. Large gear, 20. Side shaft, 21. Small gear, 22. Fan blade, 23. Baffle, 24. Slot, 25. Insert plate, 26. Fixed clamping plate, 27. Side plate, 28. Limiting telescopic rod, 29. Moving clamping plate, 30. Threaded rod, 31. Side opening, 32. Guide wheel, 33. Stabilizing plate, 34. Slot, 35. Controller, 36. Soft pad, 37. Turntable, 38. Handle, 39. Bearing one, 40. Support block one, 41. Bearing two, 42. Support block two, 43. Stabilizing telescopic rod, 44. Coil spring, 45. Fastening ring, 46. Protruding rod. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figure 1-11 A three-axis CNC machining center for metal processing includes a base plate 8 with openings at the top and bottom. During production, the openings of the base plate 8 are integrally machined. Four support legs 11 are fixedly welded to the bottom of the base plate 8, supporting the base plate 8 and creating a certain gap between the base plate 8 and the support surface. Four vertically extending support columns 10 are fixedly installed on the top of the base plate 8. The tops of the four support columns 10 are fixedly connected by a top plate 9. The base plate 8, top plate 9, support columns 10, and support legs 11 constitute the frame, which is the framework of the entire machining center and is used for assembling and installing the structure.

[0024] The top plate 9 is a horizontal panel with side openings 31 machined into its sides. A hydraulic cylinder 12 is fixedly installed on the horizontal surface of the top of the top plate 9. The hydraulic cylinder 12 is a working component that provides linear driving force. Its output shaft extends downward, passes through the top plate 9, and a lifting plate 3 is fixedly installed thereon. The output shaft of the hydraulic cylinder 12 is movably connected to the top plate 9. The hydraulic cylinder 12 is designed to provide force for the movement of the lifting plate 3. When the output shaft of the hydraulic cylinder 12 extends, the lifting plate 3 moves downward; when the output shaft shortens, the lifting plate 3 moves upward. The top of the lifting plate 3 is fixed. Two stabilizing telescopic rods 43 are connected. The stabilizing telescopic rods 43 are circular hollow tubes that can be extended or shortened. This is existing technology. Their top ends are fixedly connected to the bottom of the top plate 9. The setting of the two stabilizing telescopic rods 43 ensures that the lifting plate 3 will only move in a linear motion relative to the top plate 9. It also protects the output shaft of the hydraulic cylinder 12, preventing the output shaft of the hydraulic cylinder 12 from being subjected to forces other than those in the vertical direction. The bottom of the lifting plate 3 is fixedly installed with a working body 2. The working body 2 is a working part for milling metal. This is existing technology, and its model will not be described in detail here.

[0025] As described above, there are four support columns 10. A linear motor 15 is installed between every two support columns 10. The moving working ends of the two linear motors 15 are fixedly connected by a moving beam 13. When the linear motor 15 is working, it can drive the moving beam 13 to move laterally within the opening on the base plate 8. In order to stabilize the linear lateral movement of the moving beam 13, two slots 34 are machined on the moving beam 13 during processing. A stabilizing plate 33 is also fixedly connected between every two support columns 10. The thickness of the stabilizing plate 33 matches the size of the slots 34. In this way, the moving beam 13 will be stabilized by the stabilizing plate 33 when it moves laterally.

[0026] A track 16 is fixedly welded inside the moving beam 13. The top of the track 16 is arc-shaped to reduce the contact area with debris, preventing debris from accumulating on top. The bottom of the track 16 is open, as shown in the figure. A slider 14 is slidably connected to the surface of the track 16. A horizontally positioned worktable 1 is fixedly connected to the top of the slider 14. A protrusion is fixedly welded to the moving beam 13. A hydraulic cylinder 17 is fixedly mounted on the vertical side of the protrusion. The output shaft of the hydraulic cylinder 17 passes through the moving beam 13 and extends into the track 16, where a drive block 18 is fixedly connected. The drive block 18 is fixedly connected to the slider 14. Next, the drive block 18 is located inside the opening on the slider 14, and the outer side of the drive block 18 is in contact with the inner wall of the track 16. The output shaft of the hydraulic cylinder 17 is located inside the track 16. In this way, the track 16 shields the hydraulic cylinder 17, so when debris falls, it will not fall onto the output shaft of the hydraulic cylinder 17, thus not affecting the use of the hydraulic cylinder 17. When the hydraulic cylinder 17 is working, it can drive the slider 14 to slide on the surface of the track 16 through the drive block 18. With the above-mentioned structure, the worktable 1 can move left and right and forward and backward. Combined with the working body 2, it can move up and down. This realizes the basic three-axis motion.

[0027] A fixed clamping plate 26 and a side plate 27 are fixedly welded to the top of the workbench 1. Two limiting telescopic rods 28 are fixedly connected to the vertical side of the side plate 27 facing the fixed clamping plate 26. The limiting telescopic rods 28 are essentially the same as the stabilizing telescopic rods 43, both being circular tubular fittings that can be extended or shortened. The extended ends of the two limiting telescopic rods 28 away from the side plate 27 are fixedly connected to a movable clamping plate 29. The bottom of the movable clamping plate 29 is in contact with the top of the workbench 1. Soft pads 36 are fixedly bonded to the sides of the fixed clamping plate 26 and the movable clamping plate 29, respectively. The soft pads 36 are made of rubber and are specifically glued together. The soft pads 36 create a depression when clamping metal, thus protecting the metal to be processed and increasing the clamping friction, ensuring the clamping stability of the metal. A threaded rod 30 is threadedly connected to the side plate 27. One end of the threaded rod 30 is in contact with the movable clamping plate 29, and the other end is fixedly welded to a turntable 37. The operator rotates the threaded rod 30 via the turntable 37, causing the threaded rod 30 to move on the side plate 27. When it moves towards the fixed clamping plate 26, it pushes the moving clamping plate 29 towards the fixed clamping plate 26, which is the compression and fixing process. When the threaded rod 30 moves away from the fixed clamping plate 26, the operator can directly push the moving clamping plate 29 towards the side plate 27. A fastening ring 45 is threadedly connected to the surface of the threaded rod 30, located between the side plate 27 and the moving clamping plate 29. Multiple protrusions 46 are fixedly connected to the surface of the fastening ring 45. The gap between the side plate 27 and the moving clamping plate 29 is large enough for the operator to insert their hand. The operator holds the turntable 37 with one hand to prevent the threaded rod 30 from rotating, and rotates the fastening ring 45 through the protrusions 46 with the other hand. The fastening ring 45 will then fit tightly against the side of the side plate 27, which can effectively prevent the threaded rod 30 from reversing due to accidental operation or working vibration.

[0028] A protective cover 4 with openings on both the top and bottom sides is fixedly installed on the top of the base plate 8. The protective cover 4 serves to shield against flying debris, improving the safety of the entire machining center. During machining, a notch is machined into the protective cover 4. A slot 24 is machined into the base plate 8 at the position corresponding to the notch. An insert plate 25 is movably inserted into the slot 24. A baffle 23 is fixedly connected to the top of the insert plate 25. The size of the baffle 23 is exactly matched with the notch. The bottom of the baffle 23 is in contact with the top of the base plate 8. A handle 38 is fixedly welded to the outer vertical mounting surface of the baffle 23. The handle 38 makes it convenient for the operator to pull the baffle 23 upwards. The baffle 23 will then cause the insert plate 25 to disengage from the slot 24. After that, the operator can hold the handle 38 and move the baffle 23 forward, thus exposing the notch on the protective cover 4, which facilitates the fixing of metal or the removal of the machined metal.

[0029] During processing, the protective cover 4 has three strip-shaped mounting openings on its sides. Two support blocks 40 are fixedly connected in the middle mounting opening, and the two support blocks 40 are fixedly connected by a bearing 39. A central shaft 5 is fixedly mounted on the inner wall of the bearing 39. The arrangement of the bearing 39 and support blocks 40 allows the central shaft 5 to rotate relative to the protective cover 4 without detaching from it. A large gear 19 is fixedly connected to one end of the central shaft 5 extending into the protective cover 4, and a coil spring 44 is fixedly connected to the surface of the central shaft 5. One side of the coil spring 44 is fixedly connected to the outside of the protective cover 4. When the central shaft 5 rotates due to external force, the coil spring 44 can drive the central shaft 5 to rotate in reverse when the external force disappears. Two support blocks 42 are fixedly connected in each of the two side strip-shaped mounting openings, and the corresponding two support blocks 42 are connected by a bearing 41. A side shaft 20 is fixedly mounted on the inner wall of the bearing 41. The arrangement of the support blocks 42 and bearing 41 is to allow the side shaft 20 to rotate relative to the protective cover 4. The protective cover 4 rotates but does not detach from it. A small gear 21 is fixedly installed on the surface of the side shaft 20. The small gear 21 meshes with the large gear 19. The large gear 19 is much larger than the small gear 21. The purpose of this setting is to ensure that when the large gear 19 rotates once, the small gear 21 will rotate many times. A fan blade 22 is fixedly connected to the end of the side shaft 20. Since one large gear 19 drives two small gears 21 to rotate, in actual application, the assembly direction of the fan blade 22 is adjusted so that when the two fan blades 22 rotate, the wind blows in the same direction. A driven cylinder 6 is fixedly connected to the end of the central shaft 5 outside the protective cover 4. Both the central shaft 5 and the side shaft 20 are set at an angle, so that the air blowing direction of the fan blade 22 is obliquely downward. The wind can blow away debris. Most of the debris will fall through the opening on the base plate 8, and a small part may be on the top of the base plate 8. After long-term use, the debris on the top of the base plate 8 can be cleaned manually.

[0030] A connecting rope 7 is wound around the surface of the driven cylinder 6. A guide wheel 32 is fixedly installed inside the side opening 31. The end of the connecting rope 7 away from the driven cylinder 6 passes over the guide wheel 32 and is fixedly connected to the side of the lifting plate 3. Since connecting the rope to the plate or cylinder is inconvenient, in practical applications, connecting rings need to be fixedly welded to both the surface of the driven cylinder 6 and the side of the lifting plate 3. The connecting ring on the surface of the driven cylinder 6 is not shown, but the shape of the connecting ring on the side of the lifting plate 3 is clearly defined, as shown in the figure. Figure 5As shown, the end of the connecting rope 7 is fixedly attached to the connecting ring, and the excess of the connecting rope 7 is wound around the surface of the driven cylinder 6. When the lifting plate 3 moves downward, the connecting rope 7 will pull the driven cylinder 6 to rotate, and the driven cylinder 6 will drive the central shaft 5 to rotate. When the lifting plate 3 moves upward, the coil spring 44 will drive the central shaft 5 to reverse. Thus, the rotation of the fan blade 22 utilizes the lifting force of the lifting plate 3. The connecting rope 7 is located in the recess on the guide wheel 32.

[0031] Finally, in this technical solution, a controller 35 is fixedly installed on the side of the protective cover 4. The controller 35 is electrically connected to the hydraulic cylinder 12, the linear motor 15, and the hydraulic cylinder 17. The setting of the controller 35 ensures the automation level of the entire machining center. It includes the PLC controller in the prior art. This is the prior art, and the specific model of the controller will not be described in this technical solution.

[0032] It should also be noted that this technical solution has the function of blowing away debris, so in actual application, a box can be placed directly under the base plate 8, and most of the debris can fall into the box. If the box is not placed, it can be cleaned in the same way later.

[0033] In use, the operator removes the baffle 23 and places the metal on top of the workbench 1. The operator operates the turntable 37, using the fixed clamping plate 26 and the movable clamping plate 29 to fix and clamp the metal. The hydraulic cylinder 12 drives the working body 2 to move downwards. The linear motor 15 and the hydraulic cylinder 17 move, which can drive the fixed metal to move back and forth and left and right. The working body 2 will process the metal. When the lifting plate 3 moves downwards, the connecting rope 7 will pull the driven cylinder 6 to rotate. The fan blades 22 will generate blowing force, which can directly blow away the debris. When the lifting plate 3 moves upwards, the coil spring 44 will drive the central shaft 5 to reverse, and the driven cylinder 6 will wind the connecting rope 7.

[0034] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A three-axis CNC machining center for metal processing, comprising a frame, and a worktable (1) and a working body (2) disposed within the frame, characterized in that: The frame is equipped with a lifting plate (3), and a protective cover (4) is fixedly connected to the frame. A central shaft (5) is installed on the protective cover (4). A driven cylinder (6) is fixedly connected to the side of the central shaft (5). A connecting rope (7) is wound around the surface of the driven cylinder (6). The end of the connecting rope (7) away from the driven cylinder (6) is fixedly connected to the lifting plate (3).

2. The three-axis CNC machining center for metal processing according to claim 1, characterized in that: The frame includes a base plate (8) and a top plate (9) disposed above the base plate (8). A support column (10) is fixedly connected to the top of the base plate (8). The top of the support column (10) is fixedly connected to the bottom of the top plate (9). A support leg (11) is fixedly connected to the bottom of the base plate (8).

3. The three-axis CNC machining center for metal processing according to claim 2, characterized in that: A hydraulic cylinder (12) is fixedly installed on the top of the top plate (9). The output shaft of the hydraulic cylinder (12) is fixedly connected to the top of the lifting plate (3). The working body (2) is fixedly installed on the bottom of the lifting plate (3).

4. The three-axis CNC machining center for metal processing according to claim 3, characterized in that: A movable beam (13) is provided in the opening on the base plate (8), and a slider (14) is slidably provided in the movable beam (13). The workbench (1) is fixedly connected to the top of the slider (14).

5. The three-axis CNC machining center for metal processing according to claim 4, characterized in that: A linear motor (15) is provided above the base plate (8), and the moving end of the linear motor (15) is fixedly connected to the moving beam (13).

6. The three-axis CNC machining center for metal processing according to claim 5, characterized in that: A track (16) is fixedly connected to the inner wall of the movable beam (13), and the slider (14) is slidably connected to the surface of the track (16). A hydraulic cylinder (17) is fixedly installed on the side of the movable beam (13), and a drive block (18) is fixedly connected to the output shaft of the hydraulic cylinder (17). The drive block (18) is fixedly connected to the slider (14).

7. The three-axis CNC machining center for metal processing according to claim 6, characterized in that: A large gear (19) is fixedly connected to one end of the central shaft (5) away from the driven cylinder (6). A side shaft (20) is rotatably mounted on the protective cover (4). A small gear (21) that meshes with the large gear (19) is fixedly connected to the surface of the side shaft (20). A fan blade (22) is fixedly connected to the end of the side shaft (20). A coil spring (44) is fixedly connected to the surface of the central shaft (5).

8. The three-axis CNC machining center for metal processing according to claim 7, characterized in that: A notch is provided on one side of the protective cover (4), and a baffle (23) is movably inserted into the notch.

9. The three-axis CNC machining center for metal processing according to claim 8, characterized in that: The top of the base plate (8) is provided with a slot (24), and the bottom of the baffle (23) is fixedly connected with a plug plate (25), which is movably inserted into the slot (24).

10. The three-axis CNC machining center for metal processing according to claim 9, characterized in that: The top of the workbench (1) is fixedly connected to a fixed clamping plate (26) and a side plate (27). The side of the side plate (27) is connected to a movable clamping plate (29) via a limiting telescopic rod (28). A threaded rod (30) is threadedly connected to the side plate (27).

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