A CNC machining lathe

Abstract

The present invention discloses a CNC machining lathe, and relates to the technical field of CNC lathes. The CNC machining lathe comprises a frame, a headstock fixed on the upper surface of the frame, and a tailstock slidably arranged on the frame and corresponding to the headstock, and also comprises a main shaft, which is rotatably installed in the headstock, and one end of the main shaft passes through the headstock and is fixed with a claw. The driving structure rotates the linkage shaft, and the meshing between the third gear and the fourth gear, and the first gear and the second gear makes the top and the claw rotate synchronously, which is conducive to the synchronous rotation of the two ends of the workpiece, ensures accurate synchronous transmission control, and improves the processing quality of the lathe on the product. In addition, the sliding connection between the sleeve and the linkage shaft and the linear slide rail is conducive to the adjustment of the horizontal position of the third gear, and further enables the third gear and the fourth gear to be synchronously translated in the linear direction to ensure the stability of the connecting shaft during transmission.

Description

Technical Field

[0001] The invention relates to the technical field of numerically controlled lathes, in particular to a numerically controlled machining lathe. Background Art

[0002] A lathe is a machine tool that mainly uses a turning tool to perform turning processing on a rotating workpiece. It is the most important type of metal cutting machine tool. In general machine manufacturing factories, lathes are the largest in number and are also called mother machines. Drills, reamers, reamers, taps, dies and knurling tools can also be used on lathes for corresponding processing. In the processing of some structures such as table legs and chair legs, in order to improve the appearance of the product and the convenience of installation, it is usually necessary to process patterns and holes on the surface of the product. Therefore, a CNC lathe is needed to process the product.

[0003] However, in actual use, we found that it is difficult to ensure the quality of rod or tube workpieces with high coaxiality requirements at both ends using ordinary CNC lathes. The dual-drive method is used to control the rotation of the two chucks separately. Since different power sources are used for drive control, it is difficult to ensure accurate synchronous transmission control during the high-speed rotation of the two chucks, which affects the processing quality of the lathe on the product. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a CNC machining lathe to solve the problems raised in the background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a CNC machining lathe, comprising a frame, a headstock fixed to the upper surface of the frame, and a tailstock slidably arranged on the frame and corresponding to the headstock, and also comprising a spindle, the spindle is rotatably installed in the headstock, and one end of the spindle passes through the headstock and is fixed with a claw; a first hydraulic cylinder, the first hydraulic cylinder is fixed to the tailstock, and a connecting plate is fixed to the telescopic end of the first hydraulic cylinder, a connecting shaft is rotatably installed on the connecting plate, and a top corresponding to the claw is detachably fixed on the other end of the connecting shaft; a synchronous transmission assembly, the synchronous transmission assembly is arranged between the headstock and the tailstock, To drive the top and the claw to rotate synchronously in the same direction; wherein the synchronous transmission assembly includes a fixed frame fixed to the upper surface of the frame, a linkage shaft is rotatably installed between the fixed frame and the headstock, and a driving structure for driving the linkage shaft to rotate is provided on the fixed frame, a linear slide rail is provided on the surface of the linkage shaft, and a sleeve is slidably installed on the outer side of the linkage shaft along a linear direction, the sleeve is connected to the connecting plate bearing, and a third gear is fixed at one end of the sleeve, and a fourth gear meshing with the third gear is installed on the connecting shaft; a first gear is fixedly installed on the end of the linkage shaft close to the headstock, and a second gear meshing with the first gear is installed on the main shaft.

[0006] Furthermore, it also includes a tool holder, which is slidably installed on the frame; a first power seat, which is equidistantly arranged on one side of the tool holder, and the first power seat slides along the longitudinal and vertical directions of the tool holder, and a milling cutter is detachably fixed on the power output end of the first power seat; a second power seat, which is symmetrically arranged inside the tool holder, and the second power seat slides along the longitudinal and vertical directions of the tool holder, and a turning tool is detachably fixed on the power output end of the second power seat; and a polishing assembly, which is arranged on the other side of the tool holder for polishing the surface of the workpiece between the clamping claw and the top.

[0007] Furthermore, the polishing assembly includes a polishing slide fixed to one side of the tool holder, a connecting slide is slidably installed on the polishing slide, and a second hydraulic cylinder for driving the connecting slide to slide toward the tail stock is fixed on the tool holder; a movable plate is fixed on the connecting slide, at least two transmission wheels are rotatably installed on the movable plate, and a bow rod is rotatably installed on the back side of the movable plate, a tensioning wheel is rotatably installed on the bow rod, and a third hydraulic cylinder is rotatably installed on the back side of the tool holder, and the telescopic end of the third hydraulic cylinder is rotatably connected to the middle section of the bow rod to drive the bow rod to rotate and adjust the straight-line distance from the tensioning wheel to the movable plate; a grinding belt is provided between the transmission wheel and the tensioning wheel, a transmission motor for driving one of the transmission wheels to rotate is fixed on the back side of the movable plate, and a side suction hood adapted to the grinding belt is also installed on the movable plate.

[0008] Furthermore, the driving structure includes a servo motor detachably fixed on a fixed frame, a motor shaft is fixed at the output end of the servo motor, a driving shaft is rotatably mounted on the fixed frame, a driving wheel is fixed at one end of the driving shaft, and a connecting flange is provided between the other end of the driving shaft and the motor shaft; bearing seats are fixed at the upper ends of the headboard box and the fixed frame, the bearing seats are rotatably connected to the linkage shaft, a driven wheel is installed at one end of the linkage shaft, and a synchronous transmission belt is provided between the driven wheel and the driving wheel.

[0009] Furthermore, a protective cover is installed between the two bearing seats, an air jet pipe is installed on the upper surface of the protective cover, and nozzles connected to the air jet pipe are arranged at equal intervals on the inner side of the protective cover.

[0010] Furthermore, a material discharge chute is provided in the frame, the feed opening of the material discharge chute is provided on the upper surface of the frame, and the discharge opening of the material discharge chute is provided on the front surface of the frame; a discharge inclined plate is installed in the material discharge chute to allow the workpiece processing material to slide from the feed opening to the discharge opening.

[0011] Furthermore, a splash guard is installed on the front surface of the frame along its axial sliding direction, a transparent window is provided on the splash guard, and a guide plate is fixed inside the splash guard, and an acute angle is formed between the guide plate and the horizontal plane for guiding the workpiece processing material into the feed opening.

[0012] Furthermore, the upper surface of the frame is provided with a tailstock slide rail slidably connected to the tailstock, and the upper surface of the frame is provided with a tool holder transverse slide rail on one side of the tailstock slide rail, and the tool holder longitudinal slide rail is slidably installed on the tool holder transverse slide rail, and the tool holder transverse slide rail and the tool holder longitudinal slide rail are perpendicular to each other, and the tool holder longitudinal slide rail is slidably connected to the bottom of the tool holder.

[0013] Furthermore, a tool rest is provided on the upper surface of the frame between the headstock and the tailstock, and the tool rest is slidably connected to a tailstock slide rail.

[0014] Furthermore, a turning tool slide is provided inside the tool holder, and the turning tool slide is slidably connected to the second power seat. A bridge chain is provided inside the tool holder to drive the turning tool slide to slide along the vertical direction of the tool holder.

[0015] The present invention has the following beneficial effects:

[0016] (1) The CNC machining lathe rotates the linkage shaft through the driving structure, and the meshing between the third gear and the fourth gear, and the first gear and the second gear makes the center and the claw rotate synchronously, which is conducive to the synchronous rotation of the two ends of the workpiece, ensures accurate synchronous transmission control, and improves the processing quality of the lathe on the product. In addition, the sliding connection between the sleeve and the linkage shaft and the linear slide rail is conducive to the adjustment of the horizontal position of the third gear, and further enables the third gear and the fourth gear to be synchronously translated in the linear direction, so as to ensure the stability of the connecting shaft during transmission.

[0017] (2) The CNC machining lathe realizes the installation of multiple tools by setting multiple first power seats and milling cutters and second power seats and turning tools, which is beneficial to the combined turning and milling of the workpiece and improves the machining effect. Under the setting of the polishing component, the surface of the workpiece after machining can be polished, thereby improving the machining efficiency of the equipment on the workpiece.

[0018] (3) The CNC machining lathe drives the bow rod to rotate through the third hydraulic cylinder, and further adjusts the position of the tensioning wheel on the bow rod, so that the grinding belt between the driving wheels is in a tensioned state, which is beneficial to the polishing of the workpiece.

[0019] (4) The CNC machining lathe controls the distance between the center and the jaws so that the workpiece is clamped and fixed between the center and the jaws. During the workpiece machining process, machining debris splashes under the action of gravity and centrifugal force. At this time, the airflow output by the jet pipe and the nozzle flows toward the workpiece through the protective cover, and then the machining debris falls into the feed chute. By moving the splash plate to the workpiece machining position, the machining debris can be further avoided from splashing and the debris output effect can be improved. After the workpiece machining is completed, the center is released so that the workpiece falls into the feed chute, which is conducive to the collection of the workpiece after machining.

[0020] (5) The CNC machining lathe facilitates the adjustment of the tailstock position by setting the tailstock slide rail, and can realize the adjustment of the tool holder in the longitudinal and transverse directions by setting the tool holder transverse slide rail and the tool holder longitudinal slide rail, thereby improving the flexibility of the equipment. By adjusting the positions of the first power seat and the second power seat in the vertical direction and the horizontal direction, the height of the milling cutter and the turning tool and the horizontal distance from the milling cutter and the turning tool to the workpiece can be adjusted, thereby further improving the flexibility of the equipment.

[0021] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 For the present invention Figure 1 Another perspective of the picture;

[0024] Figure 3 For the present invention Figure 1 A top view of

[0025] Figure 4 For the present invention Figure 1 The main view;

[0026] Figure 5 It is a structural schematic diagram of the tool holder in the present invention;

[0027] Figure 6 For the present invention Figure 5 Another perspective of the picture;

[0028] Figure 7 It is a structural schematic diagram of the frame in the present invention;

[0029] Figure 8 It is a structural schematic diagram of the synchronous transmission assembly in the present invention;

[0030] Fig. 9 For the present invention Figure 8 The enlarged view of point A in the middle;

[0031] Fig.10 For the present invention Figure 8 The main view;

[0032] Fig.11 For the present invention Fig.10 The enlarged view of point B in the middle;

[0033] Fig.12 It is a schematic structural diagram of the polishing assembly in the present invention;

[0034] Fig.13 For the present invention Fig.12 The main view;

[0035] Fig.14 For the present invention Fig.12 Rear view of

[0036] Fig.15 It is a schematic structural diagram of the splash plate in the present invention.

[0037] In the figure, 1, frame; 2, headstock; 3, tailstock; 4, unloading chute; 5, splash plate; 6, fixed frame; 7, tool holder; 8, first power seat; 9, unloading inclined plate; 10, bearing seat; 11, protective cover; 12, linkage shaft; 13, jet pipe; 14, servo motor; 15, follower rest; 16, first gear; 17, second gear; 18, milling cutter; 19, second power seat; 20, turning tool; 21, moving plate; 22, grinding belt; 23, tailstock slide; 24, tool holder transverse slide; 25, tool holder longitudinal slide; 26, spindle; 27. Clamping claw; 28. Connecting plate; 29. ​​Center; 30. Fourth gear; 31. First hydraulic cylinder; 32. Driven wheel; 33. Synchronous transmission belt; 34. Third gear; 35. Driving shaft; 36. Driving wheel; 37. Motor shaft; 38. Connecting flange; 39. Connecting shaft; 40. Sleeve; 41. Nozzle; 42. Linear guide rail; 43. Transmission wheel; 44. Side suction cover; 45. Tensioning wheel; 46. Second hydraulic cylinder; 47. Connecting slide seat; 48. Polishing slide rail; 49. Bow rod; 50. Third hydraulic cylinder; 51. Transmission motor. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] In the description of the present invention, it is necessary to understand that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0040] See also Figure 1 - Fig.15The embodiment of the present invention provides a technical solution: a CNC machining lathe, comprising a frame 1, a headstock 2 fixed to the upper surface of the frame 1, and a tailstock 3 slidably arranged on the frame 1 and corresponding to the headstock 2, and also comprising a spindle 26, the spindle 26 is rotatably installed in the headstock 2, and one end of the spindle 26 passes through the headstock 2 and is fixed with a claw 27, preferably the claw 27 and the spindle 26 are detachably connected, such as clamping or bolting, to facilitate the replacement and maintenance of the claw 27.

[0041] The CNC machining lathe provided in this embodiment also includes a first hydraulic cylinder 31, which is fixed on the tailstock 3. It should be noted that the telescopic direction of the first hydraulic cylinder 31 is parallel to the moving direction of the tailstock 3, and a connecting plate 28 is fixed to the telescopic end of the first hydraulic cylinder 31, and a connecting shaft 39 is rotatably installed on the connecting plate 28. Preferably, the connecting plate 28 and the connecting shaft 39 are rotatably connected by a bearing to facilitate the rotation of the connecting shaft 39. A top 29 corresponding to the claw 27 is detachably fixed at the other end of the connecting shaft 39. The top 29 is driven to move by the first hydraulic cylinder 31, so that the workpiece is clamped between the top 29 and the claw 27, thereby achieving fixation of the workpiece. It should be noted that the detachable fixing method here can be selected as clamping, bolt connection or flange connection to facilitate the later disassembly and replacement of the top 29.

[0042] In order to realize the synchronous rotation of the center 29 and the claw 27, the CNC machining lathe provided in this embodiment also includes a synchronous transmission component, which is arranged between the headstock 2 and the tailstock 3, and is used to drive the center 29 and the claw 27 to rotate synchronously in the same direction, thereby facilitating the synchronous rotation of the two ends of the workpiece, ensuring precise synchronous transmission control, so as to meet the processing of workpieces with high coaxiality requirements at both ends and improve the processing quality of the lathe on the product.

[0043] Specifically, the synchronous transmission assembly provided in this embodiment includes a fixing frame 6 fixed to the upper surface of the frame 1, the fixing frame 6 is an inverted "L" shaped structure, and an inclined support is installed on the inner side of the fixing frame 6 to improve the stability of the fixing frame 6. In addition, a linkage shaft 12 is rotatably installed between the fixing frame 6 and the headboard box 2, and a driving structure for driving the linkage shaft 12 to rotate is provided on the fixing frame 6. A linear slide 42 is provided on the surface of the linkage shaft 12, and a sleeve 40 is slidably installed on the outer side of the linkage shaft 12 along a linear direction. A limiting slide groove adapted to the linear slide rail 42 is opened on the inner side of the sleeve 40, and the limiting slide groove and the linear slide rail are connected by the limiting slide groove. The sliding connection between 42 avoids relative rotation between the sleeve 40 and the linkage shaft 12, so as to improve the stability of the sleeve 40 when sliding linearly on the linkage shaft 12. In addition, the sleeve 40 is connected to the connecting plate 28 with a bearing, so that the linkage shaft 12 can drive the sleeve 40 to rotate, and a third gear 34 is fixed to one end of the sleeve 40, and a fourth gear 30 meshing with the third gear 34 is installed on the connecting shaft 39. The sleeve 40 drives the third gear 34 to rotate through the linkage shaft 12, and the connecting shaft 39 rotates through the meshing between the third gear 34 and the fourth gear 30, thereby rotating the top 29.

[0044] In order to realize the driving of the claw 27, a first gear 16 is fixedly installed at one end of the linkage shaft 12 close to the headstock 2, and a second gear 17 meshing with the first gear 16 is installed on the main shaft 26. The first gear 16 is rotated through the linkage shaft 12, and the main shaft 26 is rotated through the meshing between the first gear 16 and the second gear 17, which further rotates the claw 27, so that the claw 27 and the center 29 rotate synchronously, which is beneficial to the synchronous rotation of the two ends of the workpiece, ensuring precise synchronous transmission control, so as to meet the processing of workpieces with high coaxiality requirements at both ends and improve the processing quality of the lathe on the product.

[0045] like Figure 1 - Figure 6As shown, the CNC machining lathe provided in this embodiment also includes a tool holder 7, which is slidably mounted on the frame 1, and a first power seat 8 is evenly spaced on one side of the tool holder 7. The first power seat 8 slides in the longitudinal and vertical directions of the tool holder 7, and a milling cutter 18 is detachably fixed on the power output end of the first power seat 8. It should be noted that a milling cutter slide is provided on one side of the tool holder 7, and the milling cutter slide is slidably connected to the first power seat 8 in the horizontal direction through a first slide rail. Preferably, the first power seat 8 is driven by a hydraulic cylinder in the longitudinal direction (i.e., the horizontal direction) to adjust the first power seat 8 to The horizontal distance of the workpiece, and realizes the longitudinal feeding when the first power seat 8 is working. In addition, the milling cutter slide is slidably connected with the tool holder 7 in the vertical direction through the second slide rail, and a second servo motor is installed on the upper end of the tool holder 7. The output end of the second servo motor is provided with a second screw rod, and the second screw rod is threadedly connected with the milling cutter slide. The rotation of the second screw rod is controlled by the second servo motor, and the second screw rod is threadedly connected with the milling cutter slide to drive the milling cutter slide to slide on the second slide rail, thereby adjusting the height of the first power seat 8, and can provide vertical feeding for the first power seat 8 when it is working.

[0046] Furthermore, the CNC machining lathe provided in this embodiment also includes a second power seat 19, which is symmetrically arranged inside the tool holder 7, and the second power seat 19 slides along the longitudinal and vertical directions of the tool holder 7. The turning tool 20 is detachably fixed at the power output end of the second power seat 19, and a polishing assembly is provided on the other side of the tool holder 7 for polishing the workpiece surface between the claw 27 and the top 29.

[0047] In this solution, by setting up multiple first power seats 8, milling cutters 18 and second power seats 19, turning tools 20, the installation of multiple types of tools is achieved, which is beneficial to the combined turning and milling processing of the workpiece and improves the processing effect. Under the setting of the polishing component, the surface of the workpiece after processing can be polished, thereby improving the processing efficiency of the equipment on the workpiece.

[0048] like Fig.12 - Fig.14 As shown, the polishing assembly provided in this embodiment includes a polishing slide rail 48 fixed to one side of the tool holder 7, a connecting slide seat 47 is slidably mounted on the polishing slide rail 48, and a second hydraulic cylinder 46 for driving the connecting slide seat 47 to slide toward the tail stock 3 is fixed on the tool holder 7. The connecting slide seat 47 is driven to slide on the polishing slide rail 48 by the second hydraulic cylinder 46, which is beneficial to adjust the distance between the polishing assembly and the workpiece.

[0049] Specifically, a movable plate 21 is fixed on the connecting slide 47, and the lower end of the movable plate 21 is fixedly connected to the connecting slide 47 by bolts, and at least two transmission wheels 43 are rotatably installed on one side of the movable plate 21, and a bow rod 49 is rotatably installed on the other side of the movable plate 21, and a tensioning wheel 45 is rotatably installed on the bow rod 49, and a third hydraulic cylinder 50 is rotatably installed on the back side of the tool holder 7, and the telescopic end of the third hydraulic cylinder 50 is rotatably connected to the middle section of the bow rod 49 to drive the bow rod 49 to rotate and adjust the straight-line distance from the tensioning wheel 45 to the movable plate 21.

[0050] Furthermore, a grinding belt 22 is provided between the transmission wheel 43 and the tensioning wheel 45, and a transmission motor 51 for driving one of the transmission wheels 43 to rotate is fixed on the back side of the movable plate 21, and the bow rod 49 is driven to rotate by the third hydraulic cylinder 50, so that the bow rod 49 further drives the tensioning wheel 45 to move, and the tightness of the grinding belt 22 is adjusted by the tensioning wheel 45, which is beneficial to the polishing of the workpiece, and a side suction hood 44 adapted to the grinding belt 22 is also installed on the movable plate 21, and a suction piece is installed on the side suction hood 44, so that the side suction hood 44 sucks the grinding debris on the surface of the grinding belt 22, thereby improving the polishing effect of the grinding belt 22, of course, the side suction hood 44 can also be replaced by a flexible scraper, it should be noted that the flexible scraper needs to be against the outer surface of the grinding belt 22, so that it can be used to clean the grinding debris on the outer surface of the grinding belt 22.

[0051] like Figure 8 and Fig. 9 As shown, the driving structure provided in this embodiment includes a servo motor 14 that is detachably fixed on a fixing frame 6, a motor shaft 37 is fixed to the output end of the servo motor 14, a driving shaft 35 is rotatably mounted on the fixing frame 6, a driving wheel 36 is fixed to one end of the driving shaft 35, and a connecting flange 38 is provided between the other end of the driving shaft 35 and the motor shaft 37. The provision of the connecting flange 38 facilitates the loading and unloading between the driving shaft 35 and the motor shaft 37, thereby facilitating the disassembly and replacement of the servo motor 14 and improving the practicability of the equipment.

[0052] In addition, to facilitate the driving of the linkage shaft 12, a bearing seat 10 is fixed at the upper end of the headboard box 2 and the fixed frame 6, and the bearing seat 10 is rotatably connected to the linkage shaft 12 to improve the stability of the linkage shaft 12 during rotation. In addition, a driven wheel 32 is installed at one end of the linkage shaft 12, and a synchronous transmission belt 33 is provided between the driven wheel 32 and the driving wheel 36.

[0053] In this solution, the servo motor 14 drives the motor shaft 37 to rotate, which further drives the motor shaft 37 to rotate the driving shaft 35, thereby rotating the driving wheel 36, and the driving wheel 36 drives the driven wheel 32 to rotate synchronously through the synchronous transmission belt 33, thereby rotating the linkage shaft 12.

[0054] like Figure 8, Fig.10 and Fig.11 As shown, in order to prevent the rotation of the linkage shaft 12 from affecting the staff, a protective cover 11 is installed between the two bearing seats 10. Preferably, the protective cover 11 is an arc-shaped structure. The linkage shaft 12 and the staff are isolated by the protective cover 11, thereby improving the safety of the equipment when in use. In addition, an air jet 13 is installed on the upper surface of the protective cover 11, and nozzles 41 connected to the air jet 13 are arranged at equal intervals on the inner side of the protective cover 11. Preferably, an air intake pipe is provided at one end of the air jet 13. Through an external air intake device, the air jet 13 and the nozzle 41 output gas. Under the structural characteristics of the protective cover 11, the air flow can be guided, so that the air flow acts near the workpiece, which not only realizes the cooling of the workpiece during processing, but also can exert pressure on the debris generated during the processing of the workpiece, accelerate the processing debris to fall toward the direction of the frame 1, and avoid the debris from splashing.

[0055] like Figure 1 - Figure 4 As shown, in order to facilitate the removal of workpiece processing debris and the output of the workpiece after processing, a feed chute 4 is opened in the frame 1, the feed opening of the feed chute 4 is arranged on the upper surface of the frame 1, and the discharge opening of the feed chute 4 is arranged on the front surface of the frame 1, and a discharge inclined plate 9 is installed in the feed chute 4 to allow the workpiece processing material to slide from the feed opening to the discharge opening.

[0056] In this solution, the workpiece processing debris falls to the feed opening under the action of airflow and gravity, and the workpiece processing debris slides to the discharge opening through the unloading inclined plate 9, which is beneficial to the output of the workpiece processing debris. After the workpiece processing is completed, the top 29 is away from the claw 27, thereby releasing the workpiece between the top 29 and the claw 27, and the workpiece falls into the discharge chute 4 under the action of gravity, which is beneficial to the collection of the workpiece after processing.

[0057] like Figure 1 , Figure 2 and Fig.14 As shown, in order to further prevent the splashing of debris from affecting the operation of the staff, a splash plate 5 is installed on the front surface of the frame 1 along its axial sliding direction, which is mainly used to isolate the processing debris and prevent the debris from splashing. A transparent window is provided on the splash plate 5 to facilitate the observation of the workpiece during processing. In order to facilitate the debris inside the splash plate 5 to enter the discharge chute 4, a guide plate is fixed inside the splash plate 5. The angle between the guide plate and the horizontal plane is an acute angle, which is used to guide the workpiece processing material into the feed opening.

[0058] like Figure 1 , Figure 2 and Figure 7As shown, in order to improve the flexibility of the lathe when in use, a tailstock slide rail 23 slidably connected to the tailstock 3 is provided on the upper surface of the frame 1 to facilitate the adjustment of the position of the tailstock 3, and a tool holder transverse slide rail 24 is provided on the upper surface of the frame 1 on one side of the tailstock slide rail 23, and a tool holder longitudinal slide rail 25 is slidably installed on the tool holder transverse slide rail 24, and the tool holder transverse slide rail 24 and the tool holder longitudinal slide rail 25 are perpendicular to each other, and the tool holder longitudinal slide rail 25 is slidably connected to the bottom of the tool holder 7, and the axial position of the tool holder longitudinal slide rail 25 on the frame 1 is adjusted through the sliding connection between the tool holder transverse slide rail 24 and the tool holder longitudinal slide rail 25, and the straight-line distance between the tool holder 7 and the workpiece is adjusted through the sliding connection between the tool holder longitudinal slide rail 25 and the tool holder 7, which is beneficial to the adjustment of the position of the tool holder 7 on the plane of the frame 1. It should be noted that when the tool holder 7 moves on the tool holder longitudinal slide rail 25, it can be driven by an adjustable hydraulic cylinder or by a ball screw.

[0059] like Figure 1 , Figure 2 and Figure 4 As shown, a tool rest 15 is provided on the upper surface of the frame 1 between the headstock 2 and the tailstock 3 , and the tool rest 15 is slidably connected to the tailstock slide rail 23 .

[0060] It should be noted that the tool rest 15 is a tool used to control the position and movement direction of the machining tool in mechanical machining. It enables the machining tool to cut along the surface of the workpiece, thereby achieving high-precision and high-efficiency machining. The tool rest 15 is composed of adjustable guide wheels and rollers, which can adjust the position and direction of the machining tool.

[0061] like Figure 5 and Figure 6 As shown, in order to facilitate the position adjustment of the second power seat 19, a tool slide is provided inside the tool holder 7, and the tool slide is slidably connected to the second power seat 19. A bridge chain is provided in the tool holder 7 to drive the tool slide to slide along the vertical direction of the tool holder 7 to adjust the height of the second power seat 19. In addition, a feed hydraulic cylinder is provided at the end of the tool slide away from the workpiece to drive the second power seat 19 to slide on the tool slide, thereby adjusting the distance from the second power seat 19 to the workpiece.

[0062] When in use (working), adjust the positions of the tailstock 3 and the tool rest 7, place the workpiece between the clamping claw 27 and the top 29, start the first hydraulic cylinder 31 to move the top 29 toward the clamping claw 27, so that the workpiece is clamped between the clamping claw 27 and the top 29, at this time, start the servo motor 14, drive the motor shaft 37 to rotate through the servo motor 14, and further drive the motor shaft 37 to drive the driving shaft 35 to rotate, so that the driving wheel 36 rotates, and the driving wheel 36 drives the driven wheel 32 to rotate synchronously through the synchronous transmission belt 33, and then the linkage shaft 12 rotates, and the linkage The shaft 12 causes the sleeve 40 to drive the third gear 34 to rotate, and the meshing between the third gear 34 and the fourth gear 30 causes the connecting shaft 39 to rotate, thereby causing the center 29 to rotate, and the first gear 16 is rotated through the linkage shaft 12, and the meshing between the first gear 16 and the second gear 17 causes the main shaft 26 to rotate, and further causes the claw 27 to rotate, thereby causing the claw 27 to rotate synchronously with the center 29, which is beneficial to the synchronous rotation of the two ends of the workpiece, ensuring precise synchronous transmission control, so as to meet the processing of workpieces with high coaxiality requirements at both ends, and improve the processing quality of the lathe on the product.

[0063] During processing, through the setting of multiple first power seats 8, milling cutters 18 and the setting of second power seats 19, turning tools 20, the installation of multiple types of tools can be achieved, which is beneficial to the combined turning and milling of the workpiece and improves the processing effect. Under the setting of the polishing component, the surface of the workpiece after processing can be polished, thereby improving the processing efficiency of the equipment on the workpiece.

[0064] During processing, the sliding splash plate 5 moves to the workpiece processing position, and gas is output through the jet pipe 13 and the nozzle 41. Under the structural characteristics of the protective cover 11, the airflow can be guided so that the airflow acts near the workpiece, which not only achieves cooling of the workpiece during processing, but also exerts pressure on the debris generated during the workpiece processing, accelerates the processing debris to fall toward the discharge chute 4, and avoids the debris from splashing.

[0065] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0066] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A CNC machining lathe, comprising a frame (1), a headstock (2) fixed to the upper surface of the frame (1), and a tailstock (3) slidably arranged on the frame (1) and corresponding to the headstock (2), characterized in that: Also includes: A main shaft (26), the main shaft (26) being rotatably mounted in the headboard box (2), and one end of the main shaft (26) passing through the headboard box (2) and being fixed with a claw (27); A first hydraulic cylinder (31), the first hydraulic cylinder (31) being fixed on the tailstock (3), and a connecting plate (28) being fixed on the telescopic end of the first hydraulic cylinder (31), a connecting shaft (39) being rotatably mounted on the connecting plate (28), and a top end (29) corresponding to the claw (27) being detachably fixed on the other end of the connecting shaft (39); A synchronous transmission assembly, the synchronous transmission assembly being arranged between the headstock (2) and the tailstock (3) and being used for driving the center (29) and the claw (27) to rotate synchronously in the same direction; in The synchronous transmission assembly comprises a fixing frame (6) fixed to the upper surface of the frame (1), a linkage shaft (12) is rotatably mounted between the fixing frame (6) and the headboard box (2), and a driving structure for driving the linkage shaft (12) to rotate is provided on the fixing frame (6), a linear slide rail (42) is provided on the surface of the linkage shaft (12), and a sleeve (40) is slidably mounted on the outer side of the linkage shaft (12) along a linear direction, the sleeve (40) is connected to a bearing of the connecting plate (28), and a third gear (34) is fixed to one end of the sleeve (40), and a fourth gear (30) meshing with the third gear (34) is installed on the connecting shaft (39); A first gear (16) is fixedly mounted on one end of the linkage shaft (12) close to the headstock (2), and a second gear (17) meshing with the first gear (16) is mounted on the main shaft (26).

2. A CNC machining lathe according to claim 1, characterized in that: Also includes: A tool holder (7), wherein the tool holder (7) is slidably mounted on the frame (1); A first power seat (8), the first power seat (8) being arranged at equal intervals on one side of the tool holder (7), the first power seat (8) sliding along the longitudinal direction and vertical direction of the tool holder (7), and a milling cutter (18) being detachably fixed at a power output end of the first power seat (8); A second power seat (19), the second power seat (19) being symmetrically arranged inside the tool holder (7), and the second power seat (19) sliding along the longitudinal direction and vertical direction of the tool holder (7), and a turning tool (20) being detachably fixed at a power output end of the second power seat (19); A polishing assembly is arranged on the other side of the tool holder (7) and is used for polishing the surface of the workpiece between the claw (27) and the center (29).

3. A CNC machining lathe according to claim 2, characterized in that: The polishing assembly comprises a polishing slide rail (48) fixed to one side of the tool holder (7), a connecting slide seat (47) being slidably mounted on the polishing slide rail (48), and a second hydraulic cylinder (46) for driving the connecting slide seat (47) to slide in the direction of the tailstock (3) being fixed to the tool holder (7); A movable plate (21) is fixed on the connecting slide (47), at least two transmission wheels (43) are rotatably mounted on the movable plate (21), and a bow rod (49) is rotatably mounted on the back side of the movable plate (21), a tensioning wheel (45) is rotatably mounted on the bow rod (49), and a third hydraulic cylinder (50) is rotatably mounted on the back side of the tool holder (7), the telescopic end of the third hydraulic cylinder (50) is rotatably connected to the middle section of the bow rod (49) to drive the bow rod (49) to rotate and adjust the linear distance from the tensioning wheel (45) to the movable plate (21); A grinding belt (22) is provided between the driving wheel (43) and the tensioning wheel (45), a driving motor (51) for driving one of the driving wheels (43) to rotate is fixed to the back side of the movable plate (21), and a side suction cover (44) adapted to the grinding belt (22) is also installed on the movable plate (21).

4. A CNC machining lathe according to claim 3, characterized in that: The driving structure comprises a servo motor (14) detachably fixed to a fixing frame (6), a motor shaft (37) being fixed to an output end of the servo motor (14), a driving shaft (35) being rotatably mounted on the fixing frame (6), a driving wheel (36) being fixed to one end of the driving shaft (35), and a connecting flange (38) being provided between the other end of the driving shaft (35) and the motor shaft (37); A bearing seat (10) is fixed to the upper ends of the headboard box (2) and the fixing frame (6); the bearing seat (10) is rotatably connected to a linkage shaft (12); a driven wheel (32) is mounted on one end of the linkage shaft (12); and a synchronous transmission belt (33) is provided between the driven wheel (32) and the driving wheel (36).

5. A CNC machining lathe according to claim 4, characterized in that: A protective cover (11) is installed between the two bearing seats (10), an air jet pipe (13) is installed on the upper surface of the protective cover (11), and nozzles (41) connected to the air jet pipe (13) are arranged at equal intervals inside the protective cover (11).

6. A CNC machining lathe according to claim 5, characterized in that: A material discharge chute (4) is provided in the frame (1), a material feed opening of the material discharge chute (4) is provided on the upper surface of the frame (1), and a material discharge opening of the material discharge chute (4) is provided on the front surface of the frame (1); A discharge inclined plate (9) is installed in the discharge chute (4) to allow the workpiece processing material to slide from the feed opening to the discharge opening.

7. A CNC machining lathe according to claim 6, characterized in that: A splash plate (5) is slidably mounted on the front surface of the frame (1) along its axial direction, the splash plate (5) being provided with a transparent window, and a guide plate is fixed inside the splash plate (5), wherein the angle between the guide plate and the horizontal plane is an acute angle, so as to guide the workpiece processing material into the feed opening.

8. A CNC machining lathe according to any one of claims 2 to 7, characterized in that: The upper surface of the frame (1) is provided with a tailstock slide rail (23) slidably connected to the tailstock (3), and the upper surface of the frame (1) is provided with a tool holder transverse slide rail (24) located on one side of the tailstock slide rail (23), and a tool holder longitudinal slide rail (25) is slidably mounted on the tool holder transverse slide rail (24), and the tool holder transverse slide rail (24) and the tool holder longitudinal slide rail (25) are perpendicular to each other, and the tool holder longitudinal slide rail (25) is slidably connected to the bottom of the tool holder (7).

9. A CNC machining lathe according to claim 8, characterized in that: A tool holder (15) is provided on the upper surface of the frame (1) between the headstock (2) and the tailstock (3), and the tool holder (15) is slidably connected to the tailstock slide rail (23).

10. A CNC machining lathe according to claim 8, characterized in that: A turning tool slide is provided inside the tool holder (7), and the turning tool slide is slidably connected to the second power seat (19). A bridge chain is provided inside the tool holder (7) to drive the turning tool slide to slide in the vertical direction of the tool holder (7).

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