Multi-station turning device for part production

Abstract

The invention discloses a multi-station turning device for part production, and particularly relates to the technical field of turning machining, the multi-station turning device for part production comprises a numerical control lathe body, an electric tailstock is slidably connected in the numerical control lathe body, a first mounting frame is arranged in the numerical control lathe body, and a second mounting frame is arranged on one side of the first mounting frame; according to the numerical control lathe, multiple connecting columns drive clamping plates to be closed to clamp and fix the two ends of the long-axis part through springs in multiple mounting caps, so that the two ends of the long-axis part can be clamped and fixed at the same time, the stability of the device during placement is kept, a second driving motor can be started through a PLC of the numerical control lathe body, and the machining precision is improved. Furthermore, the two second moving seats are far away from each other in opposite directions under the thread transmission action of the two-way screw rod, and then the use distance between the two mounting frames can be adjusted, so that the mounting frames can adapt to long-axis parts with lengths.

Description

Technical Field

[0001] This invention relates to the field of turning technology, and more specifically to a multi-station turning apparatus for parts production. Background Technology

[0002] Turning, also known as lathe machining, is a part of mechanical processing. Lathe machining mainly uses a cutting tool to turn rotating workpieces. Drills, reamers, taps, dies, and knurling tools can also be used on lathes for corresponding machining. Lathes are mainly used to machine shafts, discs, sleeves, and other workpieces with rotating surfaces. It is one of the most widely used types of machine tools in machinery manufacturing and repair shops. Its machining principle is that the workpiece rotates and the cutting tool moves in a straight line or curve in a plane. Turning is generally performed on a lathe to machine the inner and outer cylindrical surfaces, end faces, conical surfaces, shaped surfaces, and threads of workpieces.

[0003] For example, Chinese invention patent application CN119634760A discloses a multi-station machining equipment for turning shaft parts. This equipment places a long shaft into a placement hole and then clamps it from the outside using a clamping assembly. The shaft is then extended for machining. During this process, the clamping force is only applied to a localized area of ​​the outer wall of the part, while the extended portion is not fixed. Consequently, when the machining length is long, the cutting tool generates machining resistance, causing the entire device to vibrate. Since the remaining parts are always inside the device, the vibration simultaneously interferes with these other parts. Because multiple parts need to be machined sequentially, the last part to be machined is subjected to prolonged vibration, affecting the clamping of the part. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a multi-station turning apparatus for parts production, thereby solving the problems mentioned in the background section.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution: A multi-station turning device for parts production includes a CNC lathe body. An electric tailstock is slidably connected inside the CNC lathe body. A first mounting frame is disposed inside the CNC lathe body, and a second mounting frame is disposed on one side of the first mounting frame. A first sleeve is disposed between the first and second mounting frames. A guide tube is rotatably connected to one side of the first mounting frame, and a connecting rod is rotatably connected to one side of the second mounting frame. A second mounting sleeve is fixedly sleeved on the outer wall of the connecting rod. Mounting frames are fixedly sleeved on the outer circular walls of both the guide tube and the second mounting sleeve. A plurality of clamping plates are rotatably connected to the outer wall of the mounting frames, with each pair of clamping plates forming a group. A plurality of mounting caps are fixedly mounted on the inner wall of the mounting frames. Springs are movably sleeved inside each mounting cap, and connecting columns are slidably connected inside each mounting cap. One end of the connecting column is rotatably connected to the clamping plate; a second drive box is provided on the inner top surface of the CNC lathe body, a double-acting lead screw is rotatably connected inside the second drive box, two second moving seats are slidably connected inside the second drive box, the second moving seats are threadedly connected to the double-acting lead screw, a second drive motor is fixedly installed on one side of the second drive box, the second drive motor is electrically connected to the PLC controller of the CNC lathe body, one end of the drive shaft of the second drive motor is fixedly installed to the double-acting lead screw, a first connecting seat is fixedly installed on one side of the second moving seat, and the two first connecting seats are rotatably connected to the first mounting frame and the second mounting frame respectively; an automatic feeding assembly is provided on one side of the CNC lathe body, and is used to automatically feed long shaft materials fixed between the two mounting frames.

[0006] By adopting the above technical solution, the rotation of the guide tube drives the second mounting sleeve and the two mounting brackets to rotate simultaneously. The operator can then place the long shaft part to be processed between multiple clamping plates. Springs inside the multiple mounting caps cause the connecting columns to close the clamping plates, clamping and fixing both ends of the long shaft part. This simultaneously clamps and fixes both ends of the long shaft part, maintaining stability during placement. The PLC controller of the CNC lathe body can then start the second drive motor. The drive shaft of the second drive motor drives the bidirectional lead screw to rotate. The two second moving seats move away from each other under the threaded transmission of the bidirectional lead screw. Then, the two moving bidirectional lead screws, through the first connecting seat, drive the first mounting bracket and the second mounting bracket away from each other. The two mounting brackets then move away from each other, allowing adjustment of the spacing between the two mounting brackets to accommodate long shaft parts of varying lengths.

[0007] Preferably, the automatic feeding assembly includes: a guide rail, which is fixedly installed inside one side of the CNC lathe body. A mounting base is slidably connected inside the guide rail. Two first electric push rods are fixedly installed on one side of the mounting base. The first electric push rods are electrically connected to the PLC controller of the CNC lathe body. One end of each first electric push rod's telescopic rod is rotatably connected to a second connecting seat. The inner circular wall of the second connecting seat is fixedly sleeved with a first sleeve. A first mounting sleeve is fixedly installed on one side of a second mounting frame. A second sleeve is fixedly installed on one side of the first mounting frame. A positioning frame is rotatably connected to the outer circular wall of the second sleeve and the outer circular wall of the first mounting sleeve. A mounting base is slidably connected inside the positioning frame. The top surface of the mounting base has an arc-shaped groove. A limit plate is rotatably connected to the top surface of the mounting base. The position of the limit plate corresponds to the position of the arc-shaped groove. A second pneumatic push rod is fixedly installed on the top surface of the mounting base. A first pneumatic push rod is fixedly installed on the outer circular wall of the mounting base. One end of the telescopic rod of the first pneumatic push rod is fixedly installed to the mounting base. The mounting base and the first pneumatic push rod are respectively connected to the positive and negative pressure air pipes of the CNC lathe body. A second electric push rod is fixedly installed on the top surface of the mounting base. The second electric push rod is electrically connected to the PLC controller of the CNC lathe body. A positioning rod is fixedly installed on one end of the telescopic rod of the second electric push rod. The outer circular wall of the positioning rod is fixedly sleeved with the two first pneumatic push rods.

[0008] By adopting the above technical solution, the PLC controller of the CNC lathe body simultaneously activates two first electric push rods. The extension rods of the two first electric push rods then drive the first and second mounting frames to rotate via the second connecting seat. This causes the two mounting frames and their internal long shaft parts to approach the three-jaw chuck of the CNC lathe body. At this point, the PLC controller of the CNC lathe body activates the second electric push rods. The extension rods of the second electric push rods then drive the positioning rods to move. Subsequently, the two first pneumatic push rods drive the two mounting seats and the two mounting brackets to rotate, causing the two limit plates to enter between the two mounting frames. At this time, the air pipes of the CNC lathe body cause the extension rods of the second pneumatic push rods to retract, pulling the limit plates to rotate and open. Simultaneously, the CNC lathe body... The air tube of the machine body drives the extension rod of the first pneumatic push rod to extend, causing the mounting seat to move and position the mounting seat and the limiting plate outside the long shaft part. At this time, the retraction of the extension rod of the second pneumatic push rod drives the limiting plate to rotate and close, clamping the long shaft part. Then, the extension rod of the first pneumatic push rod continues to extend, causing the clamped long shaft part to leave the inside of the clamping plate and enter the position of the three-jaw chuck of the CNC lathe body. Then, the electric tailstock drives the movement of its internal top cone and the linkage of the jaws of the three-jaw chuck to fix the long shaft part inside the CNC lathe body for processing. Similarly, the machining long shaft part can be clamped and moved into the inside of the clamping plate by the cooperation of the mounting seat, the limiting plate and the first pneumatic push rod. This can complete the automatic feeding of long shaft parts, thereby improving the automation of processing.

[0009] Preferably, a limiting sleeve is fixedly installed on one side of the first mounting frame, a guide rod is fixedly installed on one side of the second mounting frame, the guide rod is slidably connected to the limiting sleeve, a first sliding rod is fixedly installed on one side of both the first mounting frame and the second mounting frame, the first sliding rod is slidably connected to the first sleeve, and a second sliding rod is fixedly installed on one side of the second mounting frame, the second sliding rod is slidably connected to the second sleeve.

[0010] By adopting the above technical solution, the guide rod, the limiting sleeve and the second slide rod can guide and limit the first mounting frame and the second mounting frame when they are separated and adjusted, so as to prevent them from being misaligned and causing the position of the two mounting frames to deviate, which would affect the placement of the long shaft parts.

[0011] Preferably, a first drive box is fixedly installed on the inner wall of the CNC lathe body shell. A threaded rod is rotatably connected inside the first drive box, and a driven bevel gear is fixedly sleeved on the outer circular wall of the threaded rod. A first movable seat is slidably connected inside the first drive box. One side of the first movable seat is fixedly installed to the second drive box. The first movable seat is threadedly connected to the threaded rod. A first drive motor is fixedly installed on one side of the first drive box. The first drive motor is electrically connected to the PLC controller of the CNC lathe body. The drive shaft of the first drive motor passes through... The second pneumatic push rod drive shaft is fixedly sleeved with an active bevel gear on its outer circular wall, which meshes with the driven bevel gear. A toothed ring is fixedly sleeved on the outer circular wall of the guide tube. A gear is rotatably connected to one side of the first mounting frame, which meshes with the toothed ring. A protective cover is fixedly installed on one side of the first mounting frame. A stepper motor is fixedly installed on one side of the protective cover. The stepper motor is electrically connected to the PLC controller of the CNC lathe body. One end of the stepper motor drive shaft is fixedly installed with the gear.

[0012] By adopting the above technical solution, the drive shaft of the first drive motor rotates, causing the active bevel gear to rotate. Under the meshing transmission of the active and driven bevel gears, the threaded rod rotates. Then, under the threaded transmission between the first moving seat and the threaded rod, the first moving seat drives the second drive box to move linearly. This allows for the adjustment of the positions of the two mounting brackets and the long shaft parts, facilitating their entry into the three-jaw chuck of the CNC lathe body for clamping. In mass production, the drive shaft of the stepper motor drives the gear to rotate. Under the meshing transmission of the gear and the gear ring, the gear ring drives the guide tube and the two mounting brackets to rotate simultaneously. With the cooperation of the automatic feeding component, the rotation of the long shaft parts to be processed can be alternated, and automatic feeding can be achieved, thus making it suitable for mass production.

[0013] Preferably, a cleaning nozzle is provided on one side of the first mounting frame and the second mounting frame, and the cleaning nozzle is connected to the positive pressure air pipe of the CNC lathe body.

[0014] By adopting the above technical solution, two cleaning nozzles can blow away the machining waste attached to both ends of the long shaft part when it is clamped into the three-jaw chuck of the CNC lathe body, preventing the part from being misaligned due to residual waste during clamping.

[0015] Preferably, a fixing seat is fixedly installed on one side of the first mounting frame and the second mounting frame respectively. The fixing seat is rotatably connected to the cleaning nozzle. An adjusting plate is fixedly installed on the outer circular wall of the cleaning nozzle. An adjusting screw is rotatably connected inside the fixing seat. An adjusting block is slidably connected inside the fixing seat. The adjusting block is threadedly connected to the fixing seat.

[0016] By adopting the above technical solution, the adjusting block can be moved up and down by rotating the fixed base. Then, the inclined surface of the adjusting block will be pressed against the inclined surface of the adjusting plate. The adjusted plate, which is then pressed, will cause the cleaning nozzle to rotate. This allows the air outlet direction of the cleaning nozzle to be adjusted to adapt to parts of different lengths.

[0017] Preferably, accordion covers are fixedly installed on both sides of the first movable seat and the second movable seat, and the accordion covers are fixedly installed on the inner wall surfaces of the first drive box and the second drive box, respectively.

[0018] By adopting the above technical solution, it is easy to prevent machining waste from entering the interior of the first drive box and the second drive box, causing jamming and affecting use.

[0019] Preferably, sheet metal covers are fixedly installed on both sides of the mounting base, and one side of the sheet metal covers is fixedly installed to the inner wall of the CNC lathe body.

[0020] By adopting the above technical solution, it is possible to prevent external processing waste from entering the interior of the guide rail and causing jamming, which would affect its use.

[0021] In summary, the present invention has the following main beneficial effects: 1. This invention uses springs inside multiple mounting caps to cause multiple connecting columns to drive the clamping plates to close and clamp and fix both ends of a long shaft part. This allows for simultaneous clamping and fixing of both ends of the long shaft part, maintaining stability when the device is placed. The second drive motor can be started by the PLC controller of the CNC lathe body, and then the two second moving seats will move away from each other under the thread transmission of the bidirectional lead screw. The spacing between the two mounting brackets can then be adjusted to accommodate the length of the long shaft part.

[0022] 2. This invention simultaneously activates two first electric push rods via the PLC controller of the CNC lathe body. This, in turn, drives the first and second mounting frames to rotate via the second connecting seat, causing the two limiting plates to enter between the two mounting frames. The retraction of the telescopic rod of the second pneumatic push rod pulls the limiting plates to rotate and open. Simultaneously, the air pipe of the CNC lathe body drives the telescopic rod of the first pneumatic push rod to extend, causing the mounting seat to move and position the mounting seat and limiting plates outside the long shaft part. At this time, the retraction of the telescopic rod of the second pneumatic push rod drives the limiting plates to rotate and close, clamping the long shaft part. As the telescopic rod of the first pneumatic push rod continues to extend, the clamped long shaft part leaves the inside of the clamping plate and enters the position of the three-jaw chuck of the CNC lathe body. Then, the electric tailstock drives the movement of its internal top cone and the linkage of the three-jaw chuck jaws to fix the long shaft part inside the CNC lathe body for processing. This can complete the automatic feeding of long shaft parts, thereby improving the automation of processing.

[0023] 3. The present invention can guide and limit the first mounting frame and the second mounting frame when they are separated and adjusted by the guide rod, the limiting sleeve and the second sliding rod, so as to prevent them from being misaligned and causing the position of the two mounting frames to deviate, which would affect the placement of the long shaft parts.

[0024] 4. This invention uses the drive shaft of the first drive motor to rotate, causing the active bevel gear to rotate. The meshing of the active and driven bevel gears causes the threaded rod to rotate. Then, under the threaded transmission between the first moving seat and the threaded rod, the first moving seat drives the second drive box to move linearly. This allows for the adjustment of the positions of the two mounting brackets and the long shaft parts, facilitating their entry into the three-jaw chuck of the CNC lathe body for clamping. In mass production, the drive shaft of the stepper motor can drive the gear to rotate. The meshing of the gear and the gear ring causes the gear ring to drive the guide tube and the two mounting brackets to rotate simultaneously. With the assistance of the automatic feeding assembly, the rotation of the long shaft parts to be processed can be alternated, and automatic feeding can be achieved, thus making it suitable for mass production.

[0025] 5. This invention uses two cleaning nozzles to blow away machining waste attached to both ends of long shaft parts when they are clamped inside the three-jaw chuck of a CNC lathe, preventing misalignment due to residual waste during clamping. By rotating the fixed base, the adjusting block can be moved up and down, and the inclined surface of the adjusting block will press against the inclined surface of the adjusting plate. The pressed adjusting plate will then drive the cleaning nozzle to rotate, thereby adjusting the air outlet direction of the cleaning nozzle to adapt to parts of different lengths.

[0026] 6. This invention uses a bellows cover and sheet metal cover to prevent machining waste from entering the interior of the first and second drive boxes and causing jamming, thus affecting use. At the same time, it also prevents external machining waste from entering the interior of the guide rail and causing jamming, thus affecting use. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the first mounting frame structure of the present invention; Figure 3 This is a schematic diagram of the guide rail structure of the present invention; Figure 4 This is a schematic diagram of the second mounting frame structure of the present invention; Figure 5 This is a schematic diagram of the catheter structure of the present invention; Figure 6 yes Figure 5 A magnified view of part A in the diagram; Figure 7 This is a schematic diagram of the mounting bracket structure of the present invention; Figure 8 yes Figure 7 A magnified view of part B in the diagram; Figure 9 This is a schematic diagram of the second drive box structure of the present invention; Figure 10 This is a schematic diagram of the positioning frame structure of the present invention; Figure 11 This is a schematic diagram of the fixing base structure of the present invention; Figure 12 This is a schematic diagram of the first drive box structure of the present invention.

[0028] Reference numerals: 1. CNC lathe body; 2. First mounting frame; 3. Second mounting frame; 4. First drive box; 5. Electric tailstock; 6. Guide rail; 7. Sheet metal cover; 8. Mounting bracket; 9. Mounting seat; 10. Second drive box; 11. First connecting seat; 12. First electric push rod; 13. Second electric push rod; 14. Positioning rod; 15. Second connecting seat; 16. Fixed seat; 17. First sleeve; 18. Second sleeve; 19. Positioning frame; 20. Guide tube; 21. Protective cover; 22. Stepper motor; 23. Guide rod; 24. Limiting sleeve; 25. First slide rod; 26. Second slide rod ; 27. Connecting rod; 28. First mounting sleeve; 29. ​​Second mounting sleeve; 30. Gear; 31. Gear ring; 32. Clamping plate; 33. Mounting cap; 34. Connecting column; 35. Spring; 36. Double-acting screw; 37. Second moving seat; 38. Second drive motor; 39. Bellows cover; 40. Mounting seat; 41. Limiting plate; 42. Second pneumatic push rod; 43. First pneumatic push rod; 44. Cleaning nozzle; 45. Adjusting plate; 46. Adjusting screw; 47. Adjusting block; 48. Threaded rod; 49. First moving seat; 50. Driven bevel gear; 51. Driving bevel gear; 52. First drive motor. Detailed Implementation

[0029] 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.

[0030] Example: Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 7 and Figure 8A multi-station turning device for parts production includes: a CNC lathe body 1, an electric tailstock 5 slidably connected inside the CNC lathe body 1, a first mounting frame 2 disposed inside the CNC lathe body 1, and a second mounting frame 3 disposed on one side of the first mounting frame 2; a first sleeve 17 disposed between the first mounting frame 2 and the second mounting frame 3; a guide tube 20 rotatably connected to one side of the first mounting frame 2, and a connecting rod 27 rotatably connected to one side of the second mounting frame 3; a second mounting sleeve 29 fixedly sleeved on the outer wall of the connecting rod 27; and mounting brackets fixedly sleeved on the outer circular walls of both the guide tube 20 and the second mounting sleeve 29. 8. Several clamping plates 32 are rotatably connected to the outer wall of the mounting frame 8, with each pair of clamping plates 32 forming a group. Several clamping plates 32 are fixedly installed on the inner wall of the mounting frame 8. A second drive box 10 is provided on the top surface inside the CNC lathe body 1. A double-acting lead screw 36 is rotatably connected inside the second drive box 10. Two second moving seats 37 are slidably connected inside the second drive box 10. The second moving seats 37 are threadedly connected to the double-acting lead screw 36. A second drive motor 38 is fixedly installed on one side of the second drive box 10. The second drive motor 38 is electrically connected to the PLC controller of the CNC lathe body 1. One end of the drive shaft is fixedly installed to the double-acting lead screw 36. A first connecting seat 11 is fixedly installed on one side of the second moving seat 37. The two first connecting seats 11 are rotatably connected to the first mounting frame 2 and the second mounting frame 3, respectively. By rotating the guide tube 20, the second mounting sleeve 29 and the two mounting frames 8 are rotated simultaneously. Then, the operator can place the long shaft part to be processed between multiple clamping plates 32. Then, the springs 35 inside the multiple mounting caps 33 cause the multiple connecting columns 34 to drive the clamping plates 32 to close and clamp and fix the two ends of the long shaft part. In this way, the two ends of the long shaft part can be clamped simultaneously. The device is held in place to maintain stability. Then, the second drive motor 38 can be started by the PLC controller of the CNC lathe body 1. At this time, the drive shaft of the second drive motor 38 will drive the bidirectional lead screw 36 to rotate. Then, the two second moving seats 37 will move away from each other under the thread transmission of the bidirectional lead screw 36. Then, the two moving bidirectional lead screws 36 will drive the first mounting frame 2 and the second mounting frame 3 to move away from each other through the first connecting seat 11. At this time, the two mounting frames 8 will also move away from each other, so that the usage distance between the two mounting frames 8 can be adjusted to accommodate long shaft parts.

[0031] Based on the above embodiments, refer to Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 7 , Figure 8 and Figure 10An automatic feeding assembly is provided on one side of the interior of the CNC lathe body 1, which is used to automatically feed long shaft materials fixed between two mounting brackets 8. The automatic feeding assembly includes: a guide rail 6, which is fixedly installed on one side of the interior of the CNC lathe body 1. A mounting base 9 is slidably connected inside the guide rail 6. Two first electric push rods 12 are fixedly installed on one side of the mounting base 9. The first electric push rods 12 are electrically connected to the PLC controller of the CNC lathe body 1. One end of the telescopic rod of each of the first electric push rods 12 is rotatably connected to a second connecting seat 15. The inner circular wall of the second connecting seat 15 is fixedly sleeved with a first sleeve 17. A first mounting sleeve 28 is fixedly installed on one side of the second mounting bracket 3, and a second sleeve 18 is fixedly installed on one side of the first mounting bracket 2. The outer circular wall of the second sleeve 18 and the outer circular wall of the first mounting sleeve 28 are rotatably connected to positioning frames 19. A mounting base 40 is slidably connected inside the positioning frame 19. An arc-shaped groove is formed on the top surface of the mounting base 40. A limit plate 41 is rotatably connected to the top surface of the mounting base 40, and the position of the limit plate 41 corresponds to the arc-shaped groove. A second pneumatic push rod 42 is fixedly installed on the top surface of the mounting base 40. A first pneumatic push rod 43 is fixedly installed on the outer circular wall of the mounting base 9. One end of the telescopic rod of the first pneumatic push rod 43 is fixedly installed to the mounting base 40. The mounting base 40 and the first pneumatic push rod 43 are respectively connected to the positive and negative pressure air pipes of the CNC lathe body 1. A second electric push rod 13 is fixedly installed on the top surface of the mounting base 9. The second electric push rod 13 is connected to the CNC lathe body. The PLC controller of the CNC lathe body 1 is electrically connected. One end of the telescopic rod of the second electric push rod 13 is fixedly installed with a positioning rod 14. The outer circular wall of the positioning rod 14 is fixedly sleeved with the two first pneumatic push rods 43. The two first electric push rods 12 are simultaneously started by the PLC controller of the CNC lathe body 1. Then, the telescopic rods of the two first electric push rods 12 will drive the first mounting frame 2 and the second mounting frame 3 to rotate through the second connecting seat 15. Then, the positions of the two mounting frames 8 and their internal long shaft parts are brought close to the three-jaw chuck of the CNC lathe body 1. At this time, the second electric push rod 13 is started by the PLC controller of the CNC lathe body 1. Then, the telescopic rod of the second electric push rod 13 will drive the positioning rod 14 to move. Then, the two first pneumatic push rods 43 will cause the two mounting seats 9 and the two mounting bases 40 to rotate, so that the two limiting plates 41 enter between the two mounting brackets 8. At this time, the air pipe of the CNC lathe body 1 causes the extension rod of the second pneumatic push rod 42 to retract, pulling the limiting plate 41 to rotate and open. At the same time, the air pipe of the CNC lathe body 1 causes the extension rod of the first pneumatic push rod 43 to extend, so that the mounting base 40 moves and positions the mounting base 40 and the limiting plate 41 outside the long shaft part. At this time, the retraction of the extension rod of the second pneumatic push rod 42 causes the limiting plate 41 to rotate and close, clamping the long shaft part. Then, the extension rod of the first pneumatic push rod 43 continues to extend, causing the clamped long shaft part to leave the inside of the clamping plate 32 and enter the position of the three-jaw chuck of the CNC lathe body 1.Then, the electric tailstock 5 drives the movement of its internal top cone and the linkage of the three-jaw chuck jaws to fix the long shaft part inside the CNC lathe body 1 for processing. Similarly, the processed long shaft part can be clamped and moved into the clamping plate 32 through the cooperation of the mounting base 40, the limiting plate 41 and the first pneumatic push rod 43, thus completing the automatic feeding of the long shaft part, thereby improving the automation of processing. A limiting sleeve 24 is fixedly installed on one side of the first mounting frame 2, and a guide rod 23 is fixedly installed on one side of the second mounting frame 3. The guide rod 23 and the limiting sleeve 24 are fixedly installed on the first mounting frame 2. The limiting sleeve 24 is slidably connected. A first sliding rod 25 is fixedly installed on one side of both the first mounting frame 2 and the second mounting frame 3, and the first sliding rod 25 is slidably connected to the first sleeve 17. A second sliding rod 26 is fixedly installed on one side of the second mounting frame 3, and the second sliding rod 26 is slidably connected to the second sleeve 18. Through the guide rod 23, the limiting sleeve 24, and the second sliding rod 26, the first mounting frame 2 and the second mounting frame 3 can be guided and limited during separation and adjustment, preventing misalignment that could cause positional deviations in the two mounting frames 8 and affect the placement of the long shaft parts.

[0032] Based on the above embodiments, refer to Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 12A first drive box 4 is fixedly installed on the inner wall of the CNC lathe body 1. A threaded rod 48 is rotatably connected inside the first drive box 4. A driven bevel gear 50 is fixedly sleeved on the outer wall of the threaded rod 48. A first movable seat 49 is slidably connected inside the first drive box 4. One side of the first movable seat 49 is fixedly installed to the second drive box 10. The first movable seat 49 is threadedly connected to the threaded rod 48. A first drive motor 52 is fixedly installed on one side of the first drive box 4. The first drive motor 52 is connected to the PLC of the CNC lathe body 1. The controller is electrically connected. The drive shaft of the first drive motor 52 passes through and extends into the interior of the first drive box 4. The outer circular wall of the drive shaft of the second pneumatic push rod 42 is fixedly sleeved with an active bevel gear 51, which meshes with the driven bevel gear 50. The outer circular wall of the guide tube 20 is fixedly sleeved with a toothed ring 31. A gear 30 is rotatably connected to one side of the first mounting frame 2, which meshes with the toothed ring 31. A protective cover 21 is fixedly installed on one side of the first mounting frame 2, and a stepper motor 22 is fixedly installed on one side of the protective cover 21. The stepper motor 22 is electrically connected to the PLC controller of the CNC lathe body 1. One end of the drive shaft of the stepper motor 22 is fixedly installed with the gear 30. The rotation of the drive shaft of the first drive motor 52 drives the active bevel gear 51 to rotate. Under the meshing transmission of the active bevel gear 51 and the driven bevel gear 50, the threaded rod 48 rotates. Then, under the threaded transmission between the first moving seat 49 and the threaded rod 48, the first moving seat 49 drives the second drive box 10 to move linearly, thereby enabling the two mounting brackets to move linearly. The position of the long shaft parts 8 is adjusted to facilitate their entry into the three-jaw chuck of the CNC lathe body 1 for clamping. In mass production, the drive shaft of the stepper motor 22 can drive the gear 30 to rotate. Under the meshing transmission of the gear 30 and the gear ring 31, the gear ring 31 will drive the guide tube 20 and the two mounting brackets 8 to rotate simultaneously. With the cooperation of the automatic feeding component, the rotation of the long shaft parts to be processed can be alternated, and the automatic feeding can be completed, thus making it suitable for mass production.

[0033] Based on the above embodiments, refer to Figure 3 , Figure 4 , Figure 8 and Figure 11Cleaning nozzles 44 are respectively installed on one side of the first mounting frame 2 and the second mounting frame 3. The cleaning nozzles 44 are connected to the positive pressure air pipe of the CNC lathe body 1. The two cleaning nozzles 44 can blow away the machining waste attached to both ends of the long shaft parts when they are clamped into the three-jaw chuck of the CNC lathe body 1, preventing the parts from being misaligned due to residual waste during clamping. Fixing seats 16 are respectively fixedly installed on one side of the first mounting frame 2 and the second mounting frame 3. The fixing seats 16 are rotatably connected to the cleaning nozzles 44. Adjusting plates 45 are fixedly installed on the outer circular wall of the cleaning nozzles 44. Adjusting screws 46 are rotatably connected inside the fixing seats 16. Adjusting blocks 47 are slidably connected inside the fixing seats 16. Adjusting blocks 47 are threadedly connected to the fixing seats 16. Rotating the fixing seats 16 can drive the adjusting blocks 45. 7. The adjustment block 47 moves up and down, and the inclined surface of the adjustment block 47 will press against the inclined surface of the adjustment plate 45. The pressured adjustment plate 45 will then drive the cleaning nozzle 44 to rotate, thereby adjusting the air outlet direction of the cleaning nozzle 44 to adapt to parts of different lengths. The first moving seat 49 and the second moving seat 37 are respectively fixedly installed on both sides of the bellows cover 39. The bellows cover 39 is fixedly installed on the inner wall surface of the first drive box 4 and the second drive box 10, respectively, to prevent the machining waste of the parts from entering the interior of the first drive box 4 and the second drive box 10 and causing jamming and affecting the use. The mounting seat 9 is respectively fixedly installed on both sides of the mounting base 9. One side of the sheet metal cover 7 is fixedly installed on the inner wall surface of the CNC lathe body 1 to prevent external machining waste from entering the interior of the guide rail 6 and causing jamming and affecting the use.

[0034] Working principle: Please refer to Figures 1-12As shown, by rotating the guide tube 20, the second mounting sleeve 29 and the two mounting brackets 8 rotate simultaneously. The operator can then place the long shaft part to be processed between multiple clamping plates 32. The springs 35 inside the multiple mounting caps 33 cause the multiple connecting posts 34 to close the clamping plates 32, clamping and fixing both ends of the long shaft part. This simultaneously clamps and fixes both ends of the long shaft part, maintaining stability during placement. Then, the PLC controller of the CNC lathe body 1 can start the second drive motor 38. At this time, the drive shaft of the second drive motor 38 drives the bidirectional lead screw 36 to rotate, and the two second moving seats 37 rotate on the bidirectional lead screw 36. Under the action of the threaded transmission, the two moving bidirectional lead screws 36 move away from each other, and then the first mounting bracket 2 and the second mounting bracket 3 move away from each other through the first connecting seat 11. At this time, the two mounting brackets 8 will also move away from each other, so that the working distance between the two mounting brackets 8 can be adjusted to accommodate long shaft parts. The PLC controller of the CNC lathe body 1 simultaneously starts the two first electric push rods 12, and then the extension rods of the two first electric push rods 12 will drive the first mounting bracket 2 and the second mounting bracket 3 to rotate through the second connecting seat 15, so that the position of the two mounting brackets 8 and the long shaft parts inside them is close to the three-jaw chuck of the CNC lathe body 1. When the second electric push rod 13 is activated by the PLC controller of the CNC lathe body 1, the extension rod of the second electric push rod 13 will drive the positioning rod 14 to move. Then, the two first pneumatic push rods 43 will drive the two mounting seats 9 and the two mounting bases 40 to rotate, so that the two limiting plates 41 enter between the two mounting brackets 8. At this time, the extension rod of the second pneumatic push rod 42 is retracted through the air pipe of the CNC lathe body 1, pulling the limiting plate 41 to rotate and open. At the same time, the extension rod of the first pneumatic push rod 43 is extended through the air pipe of the CNC lathe body 1, so that the mounting base 40 moves and positions the mounting base 40 and the limiting plate 41 outside the long shaft part. At this time, the second pneumatic push rod 42 is activated by the PLC controller of the CNC lathe body 1 to activate the positioning rod 14 to move. Then, the two first pneumatic push rods 43 will drive the two mounting bases 9 and the two mounting bases 40 to rotate, so that the two limiting plates 41 enter between the two mounting brackets 8. The retraction of the telescopic rod 42 causes the limiting plate 41 to rotate and close, clamping the long shaft part. Then, the telescopic rod of the first pneumatic push rod 43 continues to extend, causing the clamped long shaft part to leave the inside of the clamping plate 32 and enter the position of the three-jaw chuck of the CNC lathe body 1. Then, the electric tailstock 5 drives the movement of its internal top cone and the linkage of the three-jaw chuck jaws to fix the long shaft part inside the CNC lathe body 1 for processing. Similarly, the processed long shaft part can be clamped and moved into the inside of the clamping plate 32 by the cooperation of the mounting seat 40, the limiting plate 41 and the first pneumatic push rod 43. This can complete the automatic feeding of the long shaft part, thereby improving the automation of processing.

[0035] 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 multi-station turning device for parts production, characterized in that, include: The CNC lathe body has an electric tailstock slidably connected inside, a first mounting frame is provided inside the CNC lathe body, and a second mounting frame is provided on one side of the first mounting frame. A first sleeve is provided between the first mounting frame and the second mounting frame. A guide tube is rotatably connected to one side of the first mounting frame, and a connecting rod is rotatably connected to one side of the second mounting frame. A second mounting sleeve is fixedly sleeved on the outer wall of the connecting rod. Mounting frames are fixedly sleeved on the outer circular walls of both the guide tube and the second mounting sleeve. Several clamping plates are rotatably connected to the outer wall of the mounting frame, with each pair of clamping plates forming a group. Several mounting caps are fixedly installed on the inner wall of the mounting frame. Springs are movably sleeved inside the mounting caps, and connecting columns are slidably connected inside the mounting caps. One end of the connecting column is rotatably connected to a clamping plate. The upper surface of the CNC lathe body is provided with a second drive box. A double-acting lead screw is rotatably connected inside the second drive box. Two second moving seats are slidably connected inside the second drive box. The second moving seats are threadedly connected to the double-acting lead screw. A second drive motor is fixedly installed on one side of the second drive box. The second drive motor is electrically connected to the PLC controller of the CNC lathe body. One end of the drive shaft of the second drive motor is fixedly installed to the double-acting lead screw. A first connecting seat is fixedly installed on one side of the second moving seat. The two first connecting seats are rotatably connected to the first mounting frame and the second mounting frame, respectively. An automatic feeding assembly is installed on one side of the CNC lathe body, which is used to automatically feed long shaft materials fixed between two mounting brackets.

2. The multi-station turning device for parts production according to claim 1, characterized in that, The automatic feeding assembly includes: a guide rail, which is fixedly installed inside one side of the CNC lathe body. A mounting base is slidably connected inside the guide rail. Two first electric push rods are fixedly installed on one side of the mounting base. The first electric push rods are electrically connected to the PLC controller of the CNC lathe body. One end of each first electric push rod's telescopic rod is rotatably connected to a second connecting seat. The inner circular wall of the second connecting seat is fixedly sleeved with a first sleeve. A first mounting sleeve is fixedly installed on one side of a second mounting frame. A second sleeve is fixedly installed on one side of the first mounting frame. A positioning frame is rotatably connected to the outer circular wall of the second sleeve and the outer circular wall of the first mounting sleeve. A mounting base is slidably connected inside the positioning frame. An arc-shaped groove is formed on the top surface of the mounting base. A limit plate is rotatably connected to the top surface of the mounting base, and the position of the limit plate corresponds to the position of the arc-shaped groove. A second pneumatic push rod is fixedly installed on the top surface of the mounting base, and a first pneumatic push rod is fixedly installed on the outer circular wall of the mounting base. One end of the telescopic rod of the first pneumatic push rod is fixedly installed to the mounting base. The mounting base and the first pneumatic push rod are respectively connected to the positive and negative pressure air pipes of the CNC lathe body. A second electric push rod is fixedly installed on the top surface of the mounting base. The second electric push rod is electrically connected to the PLC controller of the CNC lathe body. A positioning rod is fixedly installed on one end of the telescopic rod of the second electric push rod. The outer circular wall of the positioning rod is fixedly sleeved with the two first pneumatic push rods. The two first electric push rods are simultaneously activated by the PLC controller of the CNC lathe body, thereby activating the two first electric push rods. The telescopic rod of the electric actuator drives the first and second mounting brackets to rotate via the second connecting seat. This causes the two mounting brackets and their internal long shaft parts to approach the three-jaw chuck of the CNC lathe body. At this point, the PLC controller of the CNC lathe body activates the second electric actuator, which in turn drives the positioning rod to move. Then, the two first pneumatic actuators drive the two mounting seats and the two mounting brackets to rotate, causing the two limit plates to enter between the two mounting brackets. At this time, the air pipe of the CNC lathe body causes the telescopic rod of the second pneumatic actuator to retract, pulling the limit plates to rotate and open. Simultaneously, the air pipe of the CNC lathe body causes the telescopic rod of the first pneumatic actuator to extend, causing the mounting bracket to... The mounting base and limiting plate are positioned outside the long shaft part by the moving base. At this time, the retraction of the second pneumatic push rod drives the limiting plate to rotate and close, clamping the long shaft part. Then, the extension of the first pneumatic push rod continues to extend, causing the clamped long shaft part to leave the inside of the clamping plate and enter the position of the three-jaw chuck of the CNC lathe body. Then, the electric tailstock drives the movement of its internal top cone and the linkage of the three-jaw chuck jaws to fix the long shaft part inside the CNC lathe body for processing. Similarly, the processed long shaft part can be clamped and moved into the inside of the clamping plate by the cooperation of the mounting base, limiting plate and first pneumatic push rod. This can complete the automatic feeding of long shaft parts, thereby improving the automation of processing.

3. The multi-station turning device for parts production according to claim 2, characterized in that: A limiting sleeve is fixedly installed on one side of the first mounting frame, and a guide rod is fixedly installed on one side of the second mounting frame. The guide rod is slidably connected to the limiting sleeve. A first sliding rod is fixedly installed on one side of both the first and second mounting frames. The first sliding rod is slidably connected to the first sleeve. A second sliding rod is fixedly installed on one side of the second mounting frame. The second sliding rod is slidably connected to the second sleeve. The guide rod, the limiting sleeve, and the second sliding rod can guide and limit the first and second mounting frames when they are separated and adjusted, preventing them from deviating and causing the positions of the two mounting frames to deviate, thus affecting the placement of the long shaft parts.

4. The multi-station turning device for parts production according to claim 2, characterized in that: A first drive box is fixedly installed on the inner wall of the CNC lathe body shell. A threaded rod is rotatably connected inside the first drive box. A driven bevel gear is fixedly sleeved on the outer circular wall of the threaded rod. A first movable seat is slidably connected inside the first drive box. One side of the first movable seat is fixedly installed to a second drive box. The first movable seat is threadedly connected to the threaded rod. A first drive motor is fixedly installed on one side of the first drive box. The first drive motor is electrically connected to the PLC controller of the CNC lathe body. The drive shaft of the first drive motor passes through and extends into the interior of the first drive box. A driving bevel gear is fixedly sleeved on the outer circular wall of the second pneumatic push rod drive shaft. The driving bevel gear meshes with the driven bevel gear. A toothed ring is fixedly sleeved on the outer circular wall of the guide tube. A gear is rotatably connected to one side of the first mounting frame. The gear meshes with the toothed ring. A protective cover is fixedly installed on one side of the first mounting frame. A stepper motor is fixedly installed on one side of the protective cover. The stepper motor is connected to the CNC lathe body shell. The PLC controller of the CNC lathe body is electrically connected. One end of the stepper motor drive shaft is fixedly installed with a gear. The rotation of the drive shaft of the first drive motor drives the active bevel gear to rotate. Under the meshing transmission of the active and driven bevel gears, the threaded rod rotates. Then, under the threaded transmission of the first moving seat and the threaded rod, the first moving seat drives the second drive box to move linearly. This allows for the adjustment of the positions of the two mounting brackets and the long shaft parts, facilitating their entry into the three-jaw chuck of the CNC lathe body for clamping. In mass production, the drive shaft of the stepper motor drives the gear to rotate. Under the meshing transmission of the gear and the gear ring, the gear ring drives the guide tube and the two mounting brackets to rotate simultaneously. With the cooperation of the automatic feeding component, the rotation of the long shaft parts to be processed is alternated, and automatic feeding is completed, making it suitable for mass production.

5. The multi-station turning device for parts production according to claim 1, characterized in that: Cleaning nozzles are respectively installed on one side of the first mounting frame and the second mounting frame. The cleaning nozzles are connected to the positive pressure air pipe of the CNC lathe body. The two cleaning nozzles can blow air to clean the machining waste attached to both ends of the long shaft parts when they are clamped into the three-jaw chuck of the CNC lathe body, so as to prevent the parts from being misaligned due to the residual waste during clamping.

6. The multi-station turning device for parts production according to claim 5, characterized in that: A fixed base is fixedly installed on one side of the first mounting frame and the second mounting frame respectively. The fixed base is rotatably connected to the cleaning nozzle. An adjusting plate is fixedly installed on the outer circular wall of the cleaning nozzle. An adjusting screw is rotatably connected inside the fixed base. An adjusting block mounting bracket is slidably connected inside the fixed base. The adjusting block is threadedly connected to the fixed base. By rotating the fixed base, the adjusting block can be moved up and down. Then, the inclined surface of the adjusting block will press against the inclined surface of the adjusting plate. The adjusted plate, which is then pressed, will cause the cleaning nozzle to rotate. This allows the air outlet direction of the cleaning nozzle to be adjusted to accommodate parts of different lengths.

7. The multi-station turning device for parts production according to claim 4, characterized in that: Bellows covers are fixedly installed on both sides of the first and second movable seats respectively. The bellows covers are fixedly installed on the inner wall surfaces of the first and second drive boxes respectively, so as to prevent the machining waste of parts from entering the interior of the first and second drive boxes and causing jamming and affecting the use.

8. A multi-station turning device for parts production according to claim 2, characterized in that: Sheet metal covers are fixedly installed on both sides of the mounting base. One side of the sheet metal cover is fixedly installed to the inner wall of the CNC lathe body to prevent external machining waste from entering the interior of the guide rail and causing jamming, which would affect the use.

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