A narrow-pitch shaft vertical multi-spindle CNC lathe and its usage method

Abstract

This invention belongs to the field of turning technology, specifically a narrow-pitch vertical multi-spindle CNC lathe for shafts and its usage method. Addressing the lack of corresponding protective devices during part machining in existing technologies, and the problem of the cutting head not rotating when machining grooves on shaft workpieces, the lathe includes a support box with a collection box slidably connected inside. One side of the collection box extends to the outside of the support box. Multiple second unloading holes are evenly spaced on the top inner wall of the support box. After clamping and positioning the workpiece, this invention allows the workpiece to be machined in a relatively enclosed space, preventing waste chips from flying everywhere. Furthermore, during machining, the cutting head can be driven to rotate, reducing pressure on the workpiece and preventing deformation when machining grooves on shaft workpieces.

Description

Technical Field

[0001] This invention relates to the field of turning technology, and in particular to a narrow-pitch shaft vertical multi-spindle CNC lathe and its usage method. Background Technology

[0002] Currently, CNC lathes are mainly horizontal machine tools, which have the disadvantage of large footprint. When multiple machines need to be operated, workers have to walk a considerable distance, which increases their labor intensity and affects work efficiency. In addition, with the shrinking land resources, the cost of processing space is increasing, so there is a desire for more compact and smaller equipment to improve the workshop's floor space utilization.

[0003] In existing technologies, such as the narrow-pitch shaft vertical multi-spindle CNC lathe with announcement number CN209918898U, there are still the following shortcomings in actual use:

[0004] 1. The above technical solution lacks corresponding protective devices, which makes it easy for waste chips generated during the turning process to fly around and may accidentally injure workers, posing a certain safety hazard.

[0005] 2. When turning parts, the cutting tool cannot be driven. When milling grooves on shaft-like workpieces, using direct feed to move the tool in the X direction can easily cause pressure on the shaft-like workpiece, leading to bending.

[0006] To address the aforementioned issues, this invention proposes a narrow-pitch shaft vertical multi-spindle CNC lathe and its usage method. Summary of the Invention

[0007] This invention provides a narrow-pitch shaft vertical multi-spindle CNC lathe and its usage method, which solves the shortcomings of the prior art in the process of machining parts, such as the lack of corresponding protective devices and the inability of the tool head to rotate when machining grooves on shaft workpieces, which easily leads to bending of the workpiece when machining shaft workpieces.

[0008] This invention provides the following technical solution:

[0009] A narrow-pitch shaft-type vertical multi-spindle CNC lathe includes a support box, a collection box slidably connected inside the support box, one side of the collection box extending to the outside of the support box, and multiple second unloading holes evenly spaced on the top inner wall of the support box. The vertical multi-spindle CNC lathe also includes:

[0010] Multiple protective mechanisms are fixedly installed on the top of the support box;

[0011] Multiple drive mechanisms are mounted on top of corresponding protective mechanisms, and the bottom of the drive mechanisms extends into the protective mechanisms.

[0012] Multiple limiting mechanisms are installed within corresponding protective mechanisms, and the limiting mechanisms are used to limit and support the workpiece;

[0013] Multiple machining mechanisms are installed within corresponding protective mechanisms. The machining mechanisms are used to perform turning operations on the workpiece and are connected to corresponding drive mechanisms.

[0014] Multiple moving mechanisms are installed on corresponding protective mechanisms and connected to corresponding processing mechanisms. The moving mechanisms are used to drive the processing mechanisms to adjust their positions.

[0015] In one possible design, the protective mechanism includes a protective box fixedly installed on the top of the support box. Two door panels are symmetrically rotatably connected to one side of the opening of the protective box. Hooks and locking rods are rotatably connected to one side of each door panel, and the hooks and locking rods are engaged. A first discharge hole communicating with a second discharge hole is provided on the bottom inner wall of the protective box.

[0016] In one possible design, the drive mechanism includes a drive motor fixedly mounted on the top of the protective box. The output shaft of the drive motor extends into the protective box and is fixedly mounted on a fixed plate. The bottom of the fixed plate has multiple moving slots at equal intervals. A clamping component is installed in the moving slot. The bottom of the clamping component extends into the protective box, and one side of the clamping component extends into the protective box.

[0017] In one possible design, the clamping assembly includes a drive screw rotatably connected to the inner wall of one side of the moving slot, a threaded plate threadedly connected to the drive screw, the bottom of the threaded plate extending into the protective box and fixedly mounted with an L-shaped clamping plate for clamping the workpiece, and one end of the drive screw extending into the protective box and fixedly mounted with an internal hexagon nut.

[0018] In one possible design, the limiting mechanism includes two slide rails respectively fixedly installed on the inner walls of both sides of the protective box. A first slide plate is slidably connected to the slide rails. The same support frame is fixedly installed on the two first slide plates. A support cover is rotatably connected to the support frame. Two support plates are symmetrically fixedly installed on the top of the support frame. A locking rod is slidably connected through the support plate. Multiple locking slots are equally spaced on one side of the slide rail. The locking rod is movably engaged with the corresponding multiple locking slots. A compression spring is sleeved on the locking rod. The two ends of the compression spring are fixedly connected to the locking rod and the support plate respectively.

[0019] In one possible design, the processing mechanism includes a drive shaft rotatably connected inside a protective box. Two symmetrical grooves are provided on the drive shaft. A movable plate is slidably connected inside the protective box and connected to a moving mechanism. An insertion hole is provided on the movable plate. A rotating ring connected to the insertion hole is rotatably connected to the top of the movable plate. The drive shaft passes through the insertion hole and the rotating ring respectively. A second sliding plate is fixedly installed on the inner walls of both sides of the rotating ring. One side of the second sliding plate extends into the corresponding groove and is slidably connected to the inner wall of the groove. Synchronous pulleys located inside the protective box are fixedly sleeved on both the drive shaft and the output shaft of the drive motor, and the two synchronous pulleys are connected to the same synchronous belt.

[0020] A bevel gear ring is fixedly sleeved on the rotating ring. A positioning plate is fixedly installed on one side of the top of the moving plate. A drive shaft is rotatably connected through the positioning plate. A bevel gear is fixedly installed at one end of the drive shaft. The bevel gear meshes with the bevel gear ring. A moving tube is slidably sleeved on the drive shaft. A tool holder is fixedly installed at one end of the moving tube. The tool holder is used to fix the tool head. An adjustment component is installed on the top of the moving plate. The adjustment component passes through the positioning plate and is connected to the positioning plate. The adjustment component is connected to the moving tube.

[0021] In one possible design, the positioning assembly includes symmetrical transmission rods that pass through and slide along the positioning plate. One end of each transmission rod is fixedly mounted on the same connecting plate. A moving tube passes through the connecting plate and is rotatably connected to it. The other end of each transmission rod is fixedly mounted on the same mounting plate. A fixed plate is fixedly mounted on the top of the moving plate. An electric push rod is fixedly mounted on one side of the fixed plate. The output shaft of the electric push rod passes through the fixed plate and is fixedly connected to one side of the mounting plate.

[0022] In one possible design, the moving mechanism includes two adjusting screws symmetrically rotatably connected to the inner wall of the bottom of the protective box. The threads on the two adjusting screws are in opposite directions. Two threaded holes are symmetrically opened on the moving plate. The top of the adjusting screw passes through the corresponding threaded hole and the inner wall of the top of the protective box and extends to the top of the protective box. The adjusting screw is threadedly connected to the threaded hole. A power assembly is installed on the top of the protective box, and the power assembly is connected to the two adjusting screws respectively.

[0023] In one possible design, the power assembly includes a fixed frame that is fixedly mounted on the top of the protective box. A stepper motor is fixedly mounted on the top of the fixed frame. The output shaft of the stepper motor extends into the fixed frame and is fixedly mounted with a drive gear. Two driven gears located inside the fixed frame are fixedly sleeved on two adjusting screws. The two driven gears are located on both sides of the drive gear and mesh with the drive gear.

[0024] The method of using the narrow-pitch shaft vertical multi-spindle CNC lathe includes the following steps:

[0025] S1. Workpiece positioning and clamping: Place the workpiece at the center of the bottom of the fixed plate, use an Allen wrench to turn the drive screw, and drive the L-shaped clamping plate to move laterally through the threaded plate to achieve workpiece positioning and clamping, ensuring stable processing;

[0026] S2. Support and Limitation: The longitudinally moving support frame clamps the workpiece using the L-shaped clamping plate, and the support cover supports and supports it; the release of the locking rod and the compression spring drive the locking rod to insert into the locking slot, limiting the support frame and the support cover;

[0027] S3. Waste protection and collection: The workpiece is fixed in the protective box and the door is closed; during processing, the protective box prevents waste from splashing and protects the workers; the waste falls into the collection box through the first and second discharge holes for easy collection.

[0028] S4. Workpiece rotation: Start the drive motor to drive the fixed plate and workpiece to rotate;

[0029] S5. Cutter head rotation and transmission: When the drive motor is working, it drives the transmission shaft to rotate through the synchronous pulley and synchronous belt; the slide groove cooperates with the second slide plate to drive the rotating ring and bevel gear ring to rotate; the bevel gear meshing transmission drives the drive shaft to rotate, realizing the synchronous rotation of the workpiece and the cutter head, reducing the processing pressure and avoiding workpiece bending;

[0030] S6. Tool Head Movement and Machining: Start the electric push rod to move the mounting plate and transmission rod laterally; the connecting plate moves the moving tube and tool head closer to the workpiece for easier machining and turning.

[0031] S7. Tool Head Height Adjustment: Start the stepper motor to drive the drive gear to rotate; it meshes with the driven gear to drive the adjusting screw to rotate; through the threaded hole, it drives the moving plate to move longitudinally to adjust the tool head height, which facilitates turning of different positions of the workpiece and improves machining convenience.

[0032] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the invention.

[0033] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0034] In this invention, the protective mechanism effectively protects the workpiece from flying debris generated during processing after the workpiece is placed inside the protective box and both doors are closed, thus protecting the workers. Simultaneously, the debris can fall into the collection box through the first and second discharge holes for easy collection.

[0035] With its specially designed drive mechanism, this invention enables multiple clamping components to stably hold a workpiece after it has been placed in the center area of ​​the bottom of the fixed disk. Upon starting the drive motor, the fixed disk and the workpiece rotate, thereby achieving the turning process.

[0036] The limiting mechanism of this invention allows the support frame to move longitudinally, and after the workpiece is clamped by multiple L-shaped clamps, the support cover supports the workpiece. After releasing the two locking rods, the two compression springs under force will drive the locking rods to move and insert into the corresponding locking slots, limiting the support frame and the support cover, and ensuring that the workpiece is stably supported.

[0037] Regarding the machining mechanism, when the drive motor is working, the transmission shaft rotates through the transmission cooperation of two synchronous pulleys and a synchronous belt. Under the transmission cooperation of two sliding grooves and corresponding second sliding plates, the rotating ring and bevel gear ring rotate accordingly. After meshing with the bevel gear, the drive shaft rotates, which in turn drives the cutter head clamped on the cutter head to rotate through the moving tube and the cutter holder. Thus, while driving the workpiece to rotate, the cutter head also rotates synchronously, machining the workpiece. Especially when milling grooves on a workpiece, it can reduce the pressure on the workpiece and prevent workpiece bending.

[0038] In addition, the present invention also includes a moving mechanism. By starting the power assembly, two adjusting screws are driven to rotate. Under the threaded transmission action with the corresponding threaded holes, the moving plate moves longitudinally, thereby adjusting the height of the cutting head so as to perform turning operations on different positions of the workpiece, making the machining process more convenient.

[0039] In summary, after clamping and positioning the workpiece, the present invention can ensure that the workpiece is turned in a relatively enclosed space, prevent waste chips from flying everywhere, and drive the cutting head to rotate during the machining process, thereby reducing the pressure on the workpiece and avoiding workpiece deformation. Attached Figure Description

[0040] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the narrow-pitch shaft vertical multi-spindle CNC lathe provided in an embodiment of the present invention.

[0041] Figure 2 This is a three-dimensional schematic diagram of the single structure of the narrow-pitch shaft vertical multi-spindle CNC lathe provided in an embodiment of the present invention;

[0042] Figure 3 This is a three-dimensional schematic diagram of the internal structure of the narrow-pitch shaft vertical multi-spindle CNC lathe provided in an embodiment of the present invention.

[0043] Figure 4 This is a three-dimensional schematic diagram of the connection structure of the drive motor, fixed plate, transmission shaft and moving plate of the narrow-pitch shaft vertical multi-spindle CNC lathe provided in an embodiment of the present invention.

[0044] Figure 5 This is a three-dimensional schematic diagram of the support frame, support cover, and two sliding plate connection structure of the narrow-pitch shaft vertical multi-spindle CNC lathe provided in an embodiment of the present invention.

[0045] Figure 6 This is a three-dimensional schematic diagram of the fixed plate structure of the narrow-pitch shaft vertical multi-spindle CNC lathe provided in an embodiment of the present invention.

[0046] Figure 7 This is a three-dimensional schematic diagram of the connection structure of the drive screw, threaded plate and L-shaped clamping plate of the narrow-pitch shaft vertical multi-spindle CNC lathe provided in an embodiment of the present invention.

[0047] Figure 8 This is a three-dimensional schematic diagram of the connection structure of the pallet, positioning plate, two transmission rods, connecting plate, moving tube and tool holder of the narrow-pitch shaft vertical multi-spindle CNC lathe provided in the embodiment of the present invention;

[0048] Figure 9 This is a three-dimensional schematic diagram of the connection structure of the pallet, rotating ring, bevel ring, bevel gear, drive shaft, moving tube and tool holder of the narrow-pitch shaft vertical multi-spindle CNC lathe provided in the embodiment of the present invention;

[0049] Figure 10 This is a three-dimensional schematic diagram of the connection structure of the drive motor, synchronous belt and transmission shaft of the narrow-pitch shaft vertical multi-spindle CNC lathe provided in an embodiment of the present invention.

[0050] Figure 11 This is a three-dimensional schematic diagram of the connection structure of the stepper motor, driving gear, two driven gears and two adjusting screws of the narrow-pitch shaft vertical multi-spindle CNC lathe provided in the embodiment of the present invention.

[0051] Figure 12 This is a three-dimensional schematic diagram of the support box and collection box structure of the narrow-pitch shaft vertical multi-spindle CNC lathe provided in an embodiment of the present invention.

[0052] Figure label:

[0053] 1. Support box; 2. Collection box; 3. Protective box; 4. Door panel; 5. Hook; 6. Locking rod; 7. Slide rail; 8. Slot; 9. First slide plate; 10. Support frame; 11. Cover; 12. Support plate; 13. Locking rod; 14. Compression spring; 15. Drive motor; 16. Fixed plate; 17. Drive shaft; 18. Synchronous pulley; 19. Synchronous belt; 20. Slide groove; 21. Moving plate; 22. Rotating ring; 23. Second slide plate; 24. Bevel tooth ring; 25. Positioning plate ; 26. Drive shaft; 27. Bevel gear; 28. Moving tube; 29. ​​Tool holder; 30. Connecting plate; 31. Transmission rod; 32. Mounting plate; 33. Fixing plate; 34. Electric push rod; 35. Adjusting screw; 36. Fixing bracket; 37. Stepper motor; 38. Drive gear; 39. Driven gear; 40. First feeding hole; 41. Second feeding hole; 42. Moving groove; 43. Drive screw; 44. Socket head cap nut; 45. Threaded plate; 46. L-shaped clamping plate. Detailed Implementation

[0054] The embodiments of the present invention will now be described with reference to the accompanying drawings.

[0055] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection" and "installation" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Furthermore, "connection" can be a direct connection or an indirect connection through an intermediate medium. "Fixed" means that the devices are connected to each other and their relative positional relationship remains unchanged after the connection. The directional terms mentioned in the embodiments of the present invention, such as "inner," "outer," "top," and "bottom," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention.

[0056] Example 1

[0057] Reference Figures 1-12 This embodiment of a lathe comprises a support box 1, inside which a slidably connected collection box 2 is designed. One side of the collection box 2 extends outward from the support box 1 to facilitate the collection of waste chips. Multiple second discharge holes 41 are evenly spaced on the top inner wall of the support box 1 for discharging waste chips.

[0058] Next, according to the claims, multiple protective mechanisms are installed. Each protective mechanism consists of a protective box 3 fixedly installed on the top of the support box 1. Two rotatable door panels 4 are symmetrically installed on one side of the opening of the protective box 3. Hooks 5 and locking rods 6 are respectively installed on one side of the two door panels 4. The hooks 5 and locking rods 6 are designed to be snap-fit ​​to ensure that the door panels are tightly closed. A first discharge hole 40 is opened on the bottom inner wall of the protective box 3. This hole is connected to a second discharge hole 41 on the support box 1 to facilitate the falling of waste from the protective box 3 into the collection box 2.

[0059] Subsequently, the drive mechanism is installed. A drive motor 15 is fixedly mounted on the top of each protective box 3, and its output shaft passes through the top of the protective box 3 and connects to the fixed plate 16. Multiple moving slots 42 are equally spaced on the bottom of the fixed plate 16, and a clamping assembly is installed in each moving slot 42. The clamping assembly includes a drive screw 43 rotatably connected to one side of the moving slot 42, and a threaded plate 45 is threadedly connected to the drive screw 43. The bottom of the threaded plate 45 extends out of the protective box 3 and is fixed with an L-shaped clamping plate 46 to clamp the workpiece. The other end of the drive screw 43 extends out of the protective box 3 and is fixed with an internal hex nut 44, which facilitates adjustment of the clamping force by using an internal hex wrench.

[0060] Next, the limiting mechanism is installed. A slide rail 7 is installed on each of the inner walls of the protective box 3. A first slide plate 9 is slidably connected to the slide rail 7, and a support frame 10 is fixed to both first slide plates 9. A support cover 11 is rotatably connected to the support frame 10 to support the workpiece. Two support plates 12 are installed on the top of the support frame 10, and a sliding connecting rod 13 passes through the support plate 12. Multiple slots 8 are provided on one side of the slide rail 7 to cooperate with the connecting rod 13. A compression spring 14 is fitted onto the connecting rod 13, with both ends of the spring fixedly connected to the connecting rod 13 and the support plate 12 respectively to provide clamping force.

[0061] Finally, install the machining mechanism and the moving mechanism. The machining mechanism is installed inside the protective housing 3 and connected to the corresponding drive mechanism, namely the drive motor 15 and the fixed plate 16, via connectors, for turning the workpiece. The moving mechanism is installed on the protective housing and connected to the machining mechanism, used to adjust the position of the machining mechanism to adapt to the machining requirements of different workpieces. The specific installation and connection methods of these mechanisms need to be determined according to the specific design and machining requirements of the lathe, but it should be ensured that they can work together to achieve precise machining of the workpiece.

[0062] The machining mechanism is designed in detail and installed inside the protective housing 3. The drive shaft 17 is rotatably connected to the bottom of the protective housing 3 via bearings, with symmetrical sliding grooves 20 on both sides. A movable plate 21 is slidably connected inside the protective housing 3 and connected to the moving mechanism. An insertion hole is provided on the movable plate 21, and a rotating ring 22 is rotatably connected above the insertion hole. The drive shaft 17 passes through the insertion hole and the rotating ring 22. Second sliding plates 23 are fixedly installed on both sides of the inner wall of the rotating ring 22. The second sliding plates 23 slide into the sliding grooves 20 of the drive shaft 17 to achieve synchronous rotation. Synchronous pulleys 18 are fixedly sleeved on both the drive shaft 17 and the output shaft of the drive motor 15, and are connected by a synchronous belt 19 to achieve synchronous rotation.

[0063] A bevel ring 24 is fixedly sleeved on the rotating ring 22. A positioning plate 25 is fixedly installed on the top of the moving plate 21. A drive shaft 26 is rotatably connected to the positioning plate 25, and a bevel gear 27 is fixedly installed at one end of the drive shaft 26, meshing with the bevel ring 24. A moving tube 28 is slidably sleeved on the drive shaft 26, and a tool holder 29 is fixedly installed at one end of the drive shaft 26 to fix the tool head.

[0064] The adjustment assembly includes a transmission rod 31 symmetrically penetrating the positioning plate 25, one end of which is fixedly connected to a connecting plate 30. A moving tube 28 passes through the connecting plate 30 and is rotatably connected to it. The other end of the transmission rod 31 is fixedly connected to a mounting plate 32. A fixing plate 33 is fixedly mounted on the top of the moving plate 21, and an electric push rod 34 is mounted on it. Its output shaft is fixedly connected to the mounting plate 32. When the electric push rod 34 is working, it drives the connecting plate 30 and the moving tube 28 to move through the mounting plate 32 and the transmission rod 31, thereby adjusting the position of the cutter head.

[0065] Example 2

[0066] Reference Figure 11 An improvement based on Embodiment 1: A narrow-pitch shaft-type vertical multi-spindle CNC lathe further proposes a moving mechanism, designed as follows: Two adjusting screws 35 are symmetrically rotatably connected to the bottom inner wall of the protective box 3, with opposite thread directions. A threaded hole matching the adjusting screw 35 is opened on the moving plate 21, and the top end of the adjusting screw 35 passes through the threaded hole and the top of the protective box 3, and is threadedly connected to the threaded hole.

[0067] The power assembly includes a mounting bracket 36 fixedly installed on the top of the protective housing 3, on which a stepper motor 37 is fixedly mounted. The output shaft of the stepper motor 37 extends into the mounting bracket 36 and is fixedly mounted with a drive gear 38. Driven gears 39 are fixedly fitted onto both adjusting screws 35, located on both sides of the drive gear 38 and meshing with it. When the stepper motor 37 operates, the drive gear 38 drives the two driven gears 39 and the adjusting screws 35 to rotate synchronously in opposite directions, thereby driving the moving plate 21 to move longitudinally and adjusting the cutter head height.

[0068] Finally, when the drive motor 15 operates, it drives the transmission shaft 17 to rotate via the synchronous pulley 18 and synchronous belt 19, which in turn drives the rotating ring 22 and bevel ring 24 to rotate via the slide groove 20 and the second slide plate 23. The bevel ring 24 meshes with the bevel gear 27, driving the drive shaft 26 and the moving tube 28 to rotate, which in turn drives the cutter head to rotate. Simultaneously, the cutter head position is adjusted via the electric push rod 34 and the adjusting assembly, and the cutter head height is adjusted via the stepper motor 37 and the power assembly, achieving precise machining of the workpiece. This design effectively reduces the pressure on the workpiece when milling grooves, prevents workpiece bending, and improves machining accuracy and efficiency.

[0069] This invention proposes a method for using a narrow-pitch shaft vertical multi-spindle CNC lathe, comprising the following steps:

[0070] S1. After placing the workpiece in the bottom center area of ​​the fixed plate 16, insert the hex wrench that matches the hex nut 44 into the hex nut 44 in sequence. Then, the drive screw 43 can be rotated. At this time, under the thread transmission action with the thread plate 45, the L-shaped clamping plate 46 can be driven to move laterally. At this time, the workpiece can be positioned and clamped. So that when processing the workpiece, multiple L-shaped clamping plates 46 can be used to clamp the workpiece and maintain stable transmission to the workpiece.

[0071] S2. The longitudinal moving support frame 10 can support the workpiece after clamping it with multiple L-shaped clamps 46 and using the support cover 11. Then, two locking rods 13 can be released in sequence. At this time, two compression springs 14 under force can drive the corresponding locking rods 13 to move, so that the locking rods 13 can be inserted into the corresponding slots 8, which can limit the support frame 10 and the support cover 11, and can stably support the workpiece using the support cover 11.

[0072] S3. After fixing the workpiece in the protective box 3, and then closing the two door panels 4, the waste generated during the processing of the workpiece can be protected, thus preventing the waste from flying everywhere and protecting the workers. During the processing of the workpiece, the waste generated can fall into the collection box 2 through the first discharge hole 40 and the second discharge hole 41, so that the waste can be collected conveniently.

[0073] S4. When the drive motor 15 is started and drives the fixed disk 16 to rotate, it can drive the workpiece to rotate.

[0074] S5. When the drive motor 15 is working, the transmission shaft 17 can be driven to rotate through the transmission cooperation of the two synchronous pulleys 18 and the synchronous belt 19. At this time, the rotating ring 22 can be driven to rotate through the transmission cooperation of the two sliding grooves 20 and the corresponding second sliding plate 23, which can drive the bevel ring 24 to rotate. At this time, under the meshing transmission action with the bevel gear 27, the drive shaft 26 can be driven to rotate, which can drive the cutter head clamped on the cutter head 29 to rotate through the moving tube 28 and the cutter cover 29. At this time, the cutter head can be driven to rotate synchronously with the workpiece. In this way, the cutter head can rotate when machining the workpiece. When milling grooves on the workpiece, the pressure on the workpiece can be reduced, and the workpiece bending problem can be avoided.

[0075] S6. By starting the electric push rod 34, the mounting plate 32 is moved laterally. At this time, the two transmission rods 31 can be driven to move. Under the drive of the connecting plate 30, the moving tube 28 can be moved, which can drive the cutter head to move closer to the workpiece, so as to facilitate the machining and turning of the workpiece.

[0076] S7. Start the stepper motor 37 to drive the drive gear 38 to rotate. At this time, under the meshing transmission action with the two driven gears 39, it can drive the two adjusting screws 35 to rotate. At this time, under the thread transmission action with the corresponding threaded holes, it can drive the moving plate 21 to move longitudinally, thereby adjusting the height of the cutter head so that it can perform turning operations on different positions of the workpiece, making it more convenient to process the workpiece.

[0077] However, as is well known to those skilled in the art, the working principles and wiring methods of the drive motor 15, electric push rod 34 and stepper motor 37 are commonplace and are all conventional methods or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0078] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. In the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A narrow-pitch shaft-type vertical multi-spindle CNC lathe, comprising a support box (1), a collection box (2) slidably connected inside the support box (1), one side of the collection box (2) extending to the outside of the support box (1), and a plurality of second unloading holes (41) evenly spaced on the top inner wall of the support box (1), characterized in that, This vertical multi-spindle CNC lathe also includes: Multiple protective mechanisms are fixedly installed on the top of the support box (1); Multiple drive mechanisms are mounted on top of corresponding protective mechanisms, and the bottom of the drive mechanisms extends into the protective mechanisms. Multiple limiting mechanisms are installed within corresponding protective mechanisms, and the limiting mechanisms are used to limit and support the workpiece; Multiple machining mechanisms are installed within corresponding protective mechanisms. The machining mechanisms are used to perform turning operations on the workpiece and are connected to corresponding drive mechanisms. Multiple moving mechanisms are installed on corresponding protective mechanisms and connected to corresponding processing mechanisms. The moving mechanisms are used to drive the processing mechanisms to adjust their positions. The processing mechanism includes a drive shaft (17) rotatably connected in the protective box (3), two symmetrical grooves (20) are opened on the drive shaft (17), a movable plate (21) is slidably connected in the protective box (3), the movable plate (21) is connected to the moving mechanism, an insertion hole is opened on the movable plate (21), a rotating ring (22) connected to the insertion hole is rotatably connected to the top of the movable plate (21), the drive shaft (17) passes through the insertion hole and the rotating ring (22) respectively, a second sliding plate (23) is fixedly installed on the inner walls of both sides of the rotating ring (22), one side of the second sliding plate (23) extends into the corresponding groove (20) and is slidably connected to the inner wall of the groove (20), a synchronous wheel (18) located in the protective box (3) is fixedly sleeved on the output shaft of the drive shaft (17) and the drive motor (15), and the two synchronous wheels (18) are connected to the same synchronous belt (19); A bevel ring (24) is fixedly sleeved on the rotating ring (22). A positioning plate (25) is fixedly installed on one side of the top of the moving plate (21). A drive shaft (26) is rotatably connected through the positioning plate (25). A bevel gear (27) is fixedly installed at one end of the drive shaft (26). The bevel gear (27) meshes with the bevel ring (24). A moving tube (28) is slidably sleeved on the drive shaft (26). A tool holder (29) is fixedly installed at one end of the moving tube (28). The tool holder (29) is used to fix the tool head. An adjustment component is installed on the top of the moving plate (21). The adjustment component passes through the positioning plate (25) and is connected to the positioning plate (25). The adjustment component is connected to the moving tube (28). The moving mechanism includes two adjusting screws (35) symmetrically rotatably connected to the inner wall of the bottom of the protective box (3). The threads on the two adjusting screws (35) are opposite in direction. Two threaded holes are symmetrically opened on the moving plate (21). The top of the adjusting screw (35) passes through the corresponding threaded hole and the inner wall of the top of the protective box (3) and extends to the top of the protective box (3). The adjusting screw (35) is threadedly connected to the threaded hole. A power assembly is installed on the top of the protective box (3). The power assembly is connected to the two adjusting screws (35) respectively. The power assembly includes a fixed frame (36) fixedly installed on the top of the protective box (3). A stepper motor (37) is fixedly installed on the top of the fixed frame (36). The output shaft of the stepper motor (37) extends into the fixed frame (36) and is fixedly installed with a drive gear (38). Both adjusting screws (35) are fixedly fitted with driven gears (39) located in the fixed frame (36). The two driven gears (39) are located on both sides of the drive gear (38) and mesh with the drive gear (38).

2. The narrow-pitch shaft vertical multi-spindle CNC lathe according to claim 1, characterized in that, The protective mechanism includes a protective box (3) fixedly installed on the top of the support box (1). Two door panels (4) are symmetrically rotatably connected to one side of the opening of the protective box (3). A hook (5) and a locking rod (6) are respectively rotatably connected to one side of the two door panels (4). The hook (5) and the locking rod (6) are engaged. A first discharge hole (40) connected to the second discharge hole (41) is opened on the bottom inner wall of the protective box (3).

3. The narrow-pitch shaft vertical multi-spindle CNC lathe according to claim 1, characterized in that, The drive mechanism includes a drive motor (15) fixedly installed on the top of the protective box (3). The output shaft of the drive motor (15) extends into the protective box (3) and is fixedly installed on a fixed plate (16). The bottom of the fixed plate (16) is provided with multiple moving slots (42) at equal intervals. A clamping component is installed in the moving slot (42). The bottom of the clamping component extends into the protective box (3), and one side of the clamping component extends into the protective box (3).

4. The narrow-pitch shaft vertical multi-spindle CNC lathe according to claim 3, characterized in that, The clamping assembly includes a drive screw (43) rotatably connected to the inner wall of one side of the moving groove (42), a threaded plate (45) threadedly connected to the drive screw (43), the bottom of the threaded plate (45) extending into the protective box (3) and fixedly installed with an L-shaped clamping plate (46), the L-shaped clamping plate (46) being used to clamp the workpiece, and one end of the drive screw (43) extending into the protective box (3) and fixedly installed with an internal hexagonal nut (44).

5. The narrow-pitch shaft vertical multi-spindle CNC lathe according to claim 1, characterized in that, The limiting mechanism includes two slide rails (7) fixedly installed on the inner walls of the protective box (3) on both sides respectively. A first slide plate (9) is slidably connected on the slide rail (7). The same support frame (10) is fixedly installed on the two first slide plates (9). A cover (11) is rotatably connected on the support frame (10). Two support plates (12) are symmetrically fixedly installed on the top of the support frame (10). A locking rod (13) is slidably connected through the support plate (12). Multiple slots (8) are equally spaced on one side of the slide rail (7). The locking rod (13) is movably engaged with the corresponding multiple slots (8). A compression spring (14) is sleeved on the locking rod (13). The two ends of the compression spring (14) are fixedly connected to the locking rod (13) and the support plate (12) respectively.

6. The narrow-pitch shaft vertical multi-spindle CNC lathe according to claim 5, characterized in that, The adjustment assembly includes symmetrical transmission rods (31) that pass through the positioning plate (25) and are slidably connected to the positioning plate (25). One end of each transmission rod (31) is fixedly mounted on the same connecting plate (30). A moving tube (28) passes through the connecting plate (30) and is rotatably connected to the connecting plate (30). The other end of each transmission rod (31) is fixedly mounted on the same mounting plate (32). A fixing plate (33) is fixedly mounted on the top of the moving plate (21). An electric push rod (34) is fixedly mounted on one side of the fixing plate (33). The output shaft of the electric push rod (34) passes through the fixing plate (33) and is fixedly connected to one side of the mounting plate (32).

7. The method of using the narrow-pitch shaft vertical multi-spindle CNC lathe according to any one of claims 1-6, characterized in that, Includes the following steps: S1. Workpiece positioning and clamping: Place the workpiece at the bottom center of the fixed plate (16), use an internal hex wrench to rotate the drive screw (43), drive the L-shaped clamping plate (46) to move laterally through the threaded plate (45), realize workpiece positioning and clamping, and ensure stable processing; S2, Support and Limitation: The longitudinally moving support frame (10) clamps the workpiece using the L-shaped clamp (46), and the support cover (11) supports and supports it; the release lever (13) compresses the spring (14) and drives the lever (13) to insert into the slot (8), limiting the support frame (10) and the support cover (11). S3. Waste protection and collection: The workpiece is fixed in the protective box (3) and the door panel (4) is closed; during processing, the protective box prevents waste from splashing and protects the workers; the waste falls into the collection box (2) through the first discharge hole (40) and the second discharge hole (41) for easy collection; S4. Workpiece rotation: Start the drive motor (15) to drive the fixed disk (16) and the workpiece to rotate; S5. Cutter head rotation and transmission: When the drive motor (15) is working, it drives the transmission shaft (17) to rotate through the synchronous pulley (18) and synchronous belt (19); the slide groove (20) cooperates with the second slide plate (23) to drive the rotating ring (22) and bevel gear ring (24) to rotate; the bevel gear (27) meshes and drives the drive shaft (26) and the cutter head to rotate, so as to realize the synchronous rotation of the workpiece and the cutter head, reduce the processing pressure, and avoid the workpiece bending; S6. Tool head movement and machining: Start the electric push rod (34) to drive the mounting plate (32) and transmission rod (31) to move laterally; the connecting plate (30) drives the moving tube (28) and tool head to move closer to the workpiece, which is convenient for machining and turning; S7. Tool head height adjustment: Start the stepper motor (37) to drive the drive gear (38) to rotate; mesh with the driven gear (39) to drive the adjusting screw (35) to rotate; drive the moving plate (21) to move longitudinally through the threaded hole to adjust the tool head height, so as to facilitate turning of different positions of the workpiece and improve the processing convenience.

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