Double-spindle numerical control lathe

Abstract

The invention relates to the technical field of double-spindle lathes, and discloses a double-spindle numerical control lathe which comprises a double-spindle lathe body, a storage bin is arranged on one side of the double-spindle lathe body, a discharge port is formed in one side of the storage bin, the inner wall of the bottom of the storage bin is an inclined plane, and fixing plates are fixedly connected to the two ends of the discharge port. Driving shafts are rotationally connected to the outer walls of the opposite sides of the fixing plates, semicircular grooves are formed in the opposite ends of the two driving shafts, a plurality of semicircular plates are arranged between the two driving shafts, a semicircular column is fixedly connected between every two adjacent semicircular plates, and the two semicircular plates located on the edges are fixedly connected with the side walls of the corresponding semicircular grooves correspondingly; the axis of the semi-cylinder and the axis of the semicircular plate are collinear. When shaft parts are machined in batches, automatic material distribution of materials in the material storage bin can be achieved, a traditional manual material distribution mode is not needed, and the working efficiency is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of double-spindle lathes, and particularly to a double-spindle numerically controlled lathe. Background Art

[0002] Numerically controlled lathes are one of the most widely used numerically controlled machine tools. It is mainly used for the cutting processing of the inner and outer cylindrical surfaces of shaft parts or disc parts, the inner and outer conical surfaces with any cone angle, the complex revolving inner and outer curved surfaces, and cylindrical and conical threads, etc., and can perform grooving, drilling, reaming, boring and other operations. A double-spindle numerically controlled lathe is a numerically controlled lathe with two spindles, which has the advantage of high processing efficiency.

[0003] After retrieval, a Chinese patent with the patent publication number CN119794403A discloses a double-spindle synchronous machining numerically controlled lathe, which relates to the technical field of numerically controlled lathes, including a mounting plate. Two control machines are installed on the top of the mounting plate. Driving motor seats are movably installed on the two control machines. A first telescopic rod is fixedly installed on the driving motor seat. A fixed jaw chuck is fixedly installed on the output end of the first telescopic rod. A column is fixedly installed in the middle of the top of the mounting plate. A machining seat is movably installed on the column. Multiple tool heads for punching and cutting are arranged on the machining seat. A receiving box is arranged at the positions corresponding to the two fixed jaw chucks on the top of the mounting plate. A blanking box is movably installed below the inside of the blanking box. A base is fixedly installed at the bottom of the mounting plate. A material distribution box is fixedly installed inside the base. A drain pipe is installed on the material distribution box. However, when the above lathe performs batch processing, it requires manual material distribution and then loading, with a large labor intensity, and long-term work will affect the work efficiency.

[0004] In view of this, the present invention proposes a double-spindle numerically controlled lathe to solve the problems existing in the above prior art. Summary of the Invention

[0005] The purpose of the present invention is to solve the disadvantages existing in the prior art, and to propose a double-spindle numerically controlled lathe.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions: A double-spindle CNC lathe, comprising a double-spindle lathe body, a storage bin is arranged on one side of the double-spindle lathe body, and a discharge port is arranged on one side of the storage bin. The inner wall of the bottom of the storage bin is an inclined surface. Both ends of the discharge port are fixedly connected with fixing plates, and driving shafts are rotatably connected to the outer walls of the opposite sides of the fixing plates. Semi-circular grooves are arranged at the opposite ends of the two driving shafts, and a plurality of semi-circular plates are arranged between the two driving shafts. Semi-cylinders are fixedly connected between adjacent two semi-circular plates, and the two semi-circular plates at the edges are respectively fixedly connected with the side walls of the corresponding semi-circular grooves. The axis of the semi-cylinder is collinear with the axis of the semi-circular plate, and the axis of the driving shaft is collinear with the axis of the semi-circular plate. On the outer wall of the top of each semi-circular plate away from the discharge port, a first baffle is perpendicularly fixedly connected. A first servo motor is arranged at one end of one of the driving shafts. Length adjusting mechanisms are arranged inside both sides of the storage bin. The outer walls of the tops of the semi-circular plates are aligned with the inclined inner wall of the bottom of the storage bin, jointly forming an inclined plane.

[0007] Further, the length adjusting mechanism includes a bidirectional threaded rod, the bidirectional threaded rods are rotatably connected inside the storage bin, and second servo motors are arranged at one ends of the bidirectional threaded rods. Threaded sliders I are threadedly slidably connected to the outer walls on both sides of the bidirectional threaded rods.

[0008] Further, two length adjusting plates are arranged between the two bidirectional threaded rods, and the length adjusting plates are slidably connected inside the storage bin. The shape of the length adjusting plates is adapted to the inside of the storage bin, and driving plates are hinged between the length adjusting plates and the corresponding two threaded sliders I.

[0009] Further, a through groove is opened at the top of the discharge port, and two sliders are symmetrically slidably connected to the inner wall of the through groove. Electric push rods I are installed on both of the sliders, and a connecting spring is fixedly connected between the two sliders.

[0010] Further, the telescopic ends of the electric push rods I are fixedly connected with diameter adjusting plates, and the diameter adjusting plates are parallel to the inclined inner wall of the bottom of the storage bin. Two second baffles are symmetrically slidably connected to one inner wall of the storage bin, and the bottom ends of the second baffles are fixedly connected with one ends of the corresponding diameter adjusting plates.

[0011] Further, a semi-circular cavity concentric with it is arranged inside each semi-circular plate. Notches are arranged in the middle of each first baffle, and rotating shafts are rotatably connected to the tops of the notches. Swing plates are fixedly connected to the outer walls of the rotating shafts, and the bottom ends of the swing plates extend into the semi-circular cavities. Hook springs are arranged between the bottom ends of the swing plates and the inner walls of the semi-circular cavities. Electric push rods II are arranged at the bottoms of the notches, and the telescopic ends of the electric push rods II are in contact with the outer walls of the swing plates.

[0012] Furthermore, a mounting plate 2 is provided on one side below the discharge port, and the mounting plate 2 is fixedly connected to the outer wall of the dual-spindle lathe body. An electric push rod 3 is rotatably connected to the middle part of the mounting plate 2, and a lifting and rotating plate is fixedly connected to the telescopic end of the electric push rod 3.

[0013] Furthermore, two arc-shaped bearing plates are symmetrically and fixedly connected to the top outer wall of the lifting and rotating plate, and a slope is arranged on one side of the arc-shaped bearing plate close to the discharge port, and a vertical surface is arranged on the other side of the arc-shaped bearing plate.

[0014] Furthermore, a rotating motor is installed on the outer wall of one side of the top of the second mounting plate, and a gear one is fixedly connected to the output shaft end of the rotating motor, a gear two is meshed on one side of the gear one, and the gear two is fixedly connected to the electric push rod three.

[0015] Furthermore, two hydraulic rods 1 are symmetrically fixedly connected to the outer wall at the top of the dual-spindle lathe body, and the telescopic ends of the two hydraulic rods 1 are fixedly connected to mounting frames, and the mounting frames are rotatably connected to threaded rods, the outer walls of the threaded rods are threadedly slidably connected to threaded sliders 2, and a driving motor is provided at one end of the threaded rods, the outer walls of the threaded sliders 2 are fixedly connected to hydraulic rods 2, and the telescopic ends of the hydraulic rods 2 are fixedly connected to mounting plate 1, and two mechanical claws are symmetrically provided on the bottom of the mounting plate 1.

[0016] The beneficial effects of the present invention are: The present invention can realize automatic material sorting in a storage bin when batch processing is performed on shaft parts, eliminating the need for traditional manual sorting, and greatly improving work efficiency.

[0017] The present invention can quickly adapt to the automatic material distribution requirements of different types of shaft parts through the adjustable diameter adjustment plate and the swing plate, and significantly improve the conversion efficiency and versatility.

[0018] The present invention utilizes an arc-shaped bearing plate to receive the shaft parts after material separation, and cooperates with a mechanical claw to automatically grasp them, thereby realizing fully unmanned operation of the shaft parts from material separation to loading, processing, and unloading, and significantly improving the automation level and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of a dual-spindle CNC lathe proposed in Example 1; Figure 2 This is a schematic diagram of the material storage bin structure of a dual-spindle CNC lathe proposed in Example 1; Figure 3 A schematic diagram of the structure of a material storage bin of a dual-spindle CNC lathe proposed in Example 1; Figure 4 This is a schematic diagram of the material storage bin structure of a dual-spindle CNC lathe proposed in Example 2; Figure 5 Schematic diagram of the semi-circular plate structure of a double-spindle CNC lathe proposed in Embodiment 2; Figure 6 Schematic diagram of the structure of a double-spindle CNC lathe proposed in Embodiment 3; Figure 7 For a double-spindle CNC lathe proposed in Embodiment 3 Figure 6 Schematic diagram of the structure at position A; Figure 8 Schematic diagram of the change in the material separation state of a double-spindle CNC lathe proposed in Embodiment 3.

[0020] In the figure: 1. Double-spindle lathe body; 2. Storage bin; 3. Semi-cylindrical; 4. Semi-circular groove; 5. Fixed plate; 6. Driving shaft; 7. Semi-circular plate; 8. Length adjustment plate; 9. Discharge port; 10. Servo motor 1; 11. Baffle 1; 12. Threaded slider 1; 13. Bidirectional threaded rod; 14. Driving plate; 15. Servo motor 2; 16. Diameter adjustment plate; 17. Through groove; 18. Electric push rod 1; 19. Baffle 2; 20. Connecting spring; 21. Slider; 22. Electric push rod 2; 23. Notch; 24. Rotating shaft; 25. Swing plate; 26. Hook spring; 27. Semi-circular cavity; 28. Hydraulic rod 1; 29. Mounting frame; 30. Threaded slider 2; 31. Hydraulic rod 2; 32. Mounting plate 1; 33. Driving motor; 34. Mechanical claw; 35. Electric push rod 3; 36. Mounting plate 2; 37. Rotating motor; 38. Gear 1; 39. Arc-shaped bearing plate; 40. Lifting and rotating plate; 41. Gear 2. Specific embodiments

[0021] The technical solutions of the present invention will be further described in detail below in conjunction with specific embodiments.

[0022] Embodiment 1: Refer to Figures 1-3, A double-spindle CNC lathe, including a double-spindle lathe body 1. There is a storage bin 2 on one side of the double-spindle lathe body 1, and there is a discharge port 9 on one side of the storage bin 2. The inner wall of the bottom of the storage bin 2 is an inclined plane. Both ends of the discharge port 9 are fixedly connected with fixing plates 5, and drive shafts 6 are rotatably connected to the outer walls of the opposite sides of the fixing plates 5. Semi-circular grooves 4 are provided at the opposite ends of the two drive shafts 6, and a plurality of semi-circular plates 7 are provided between the two drive shafts 6. Semi-cylinders 3 are fixedly connected between adjacent two semi-circular plates 7, and the two semi-circular plates 7 at the edge are respectively fixedly connected to the side walls of the corresponding semi-circular grooves 4. The axis of the semi-cylinder 3 is collinear with the axis of the semi-circular plate 7. The axis of the drive shaft 6 is collinear with the axis of the semi-circular plate 7, and the diameter of the drive shaft 6 is the same as the diameter of the semi-cylinder 3. The top outer wall of the semi-cylinder 3, the bottom inner wall of the semi-circular groove 4, and the top outer wall of the semi-circular plate 7 are in the same plane. A baffle one 11 is vertically fixedly connected to the outer wall of the top of each semi-circular plate 7 away from the discharge port 9. A servo motor one 10 is provided at one end of one of the drive shafts 6. Length adjustment mechanisms are provided inside both sides of the storage bin 2. The top outer walls of the semi-circular plates 7 are aligned with the inclined inner wall of the bottom of the storage bin 2 to jointly form an inclined plane. The space inside the storage bin 2 is adjusted through the length adjustment mechanism to make it suitable for the length of the shaft parts to be processed. Then, the shaft parts to be processed in batches are put into the storage bin 2. The width inside the discharge port 9 is adapted to the diameter of the shaft parts to be processed, and only single shaft parts can roll inside it. Since the inner wall of the bottom of the storage bin 2 is an inclined plane, and at the same time the top outer walls of the semi-circular plates 7 are aligned with the inclined inner wall of the bottom of the storage bin 2, under the action of gravity, the shaft parts will enter the discharge port 9 one by one and be arranged in sequence. The shaft part at the front will fall onto the semi-circular plate 7 and be blocked by the baffle one 11, while the remaining shaft parts will still be in the discharge port 9. When material distribution is required, the servo motor one 10 rotates the multiple semi-circular plates 7 through the drive shafts 6 until the semi-circular plates 7 rotate and move a certain angle. The shaft parts on the semi-circular plates 7 will roll down along the baffle one 11, and during this process, the outer walls of the semi-circular plates 7 will block the shaft parts in the discharge port 9 from rolling out; when the material distribution is completed, the servo motor one 10 will rotate the semi-circular plates 7 again (the rotation direction is opposite to the previous one) to reset the semi-circular plates 7. After resetting, the top outer walls of the semi-circular plates 7 are aligned with the inclined inner wall of the bottom of the storage bin 2 to jointly form an inclined plane, so that the shaft part at the front of the discharge port 9 rolls onto the semi-circular plate 7. In this way, when processing shaft parts in batches, automatic material distribution in the storage bin can be realized, eliminating the need for traditional manual material distribution methods and greatly improving work efficiency.

[0023] As a further solution in the present invention, the length adjustment mechanism includes a bidirectional threaded rod 13. The bidirectional threaded rod 13 is rotatably connected inside the storage bin 2, and a second servo motor 15 is provided at one end of each bidirectional threaded rod 13. Threaded sliders 12 are threadedly and slidably connected to both outer walls of the bidirectional threaded rod 13. The second servo motor 15 can rotate the bidirectional threaded rod 13 forward or backward, enabling the two threaded sliders 12 on its outer wall to approach or move away from each other.

[0024] As a further solution in the present invention, two length adjustment plates 8 are provided between the two bidirectional threaded rods 13. The length adjustment plates 8 are slidably connected inside the storage bin 2. The shape of the length adjustment plates 8 is adapted to the inside of the storage bin 2, and drive plates 14 are hinged between the length adjustment plates 8 and the corresponding two threaded sliders 12 respectively. Thus, the distance between the two length adjustment plates 8 can be adjusted through the drive plates 14.

[0025] Working principle: The space inside the storage bin 2 is adjusted by the length adjustment mechanism to suit the length of the shaft parts to be processed. Then, the shaft parts to be processed in batches are placed into the storage bin 2. The width inside the discharge port 9 is adapted to the diameter of the shaft parts to be processed, allowing only a single shaft part to roll inside. Since the inner wall of the bottom of the storage bin 2 is an inclined plane, and the top outer walls of the semi-circular plates 7 are aligned with the inclined inner wall of the bottom of the storage bin 2 at the same time, under the action of gravity, the shaft parts will enter the discharge port 9 one by one and be arranged in sequence. The shaft part at the forefront will fall onto the semi-circular plate 7 and be blocked by the first baffle 11, while the remaining shaft parts will still be in the discharge port 9. When material distribution is required, the first servo motor 10 rotates the multiple semi-circular plates 7 through the drive shaft 6 until the semi-circular plates 7 rotate and move a certain angle. The shaft parts on the semi-circular plates 7 will roll down along the first baffle 11, and during this process, the outer walls of the semi-circular plates 7 will block the shaft parts in the discharge port 9 from rolling out; after the material distribution is completed, the first servo motor 10 will rotate the semi-circular plates 7 again (in the opposite direction to before) to reset the semi-circular plates 7. After resetting, the top outer walls of the semi-circular plates 7 are aligned with the inclined inner wall of the bottom of the storage bin 2, jointly forming an inclined plane, so that the shaft part at the forefront in the discharge port 9 rolls onto the semi-circular plate 7. In this way, when processing shaft parts in batches, automatic material distribution in the storage bin can be achieved, eliminating the need for traditional manual material distribution methods and greatly improving work efficiency.

[0026] Example 2: Refer to Figures 4-5 , a double-spindle CNC lathe. Compared with Example 1, on the basis of Example 1, a through groove 17 is opened at the top of the discharge port 9, and two sliders 21 are symmetrically and slidably connected to the inner wall of the through groove 17. Electric push rods 18 are installed on both sliders 21, and a connecting spring 20 is fixedly connected between the two sliders 21.

[0027] As a further solution in the present invention, diameter adjusting plates 16 are fixedly connected to the telescopic ends of the electric push rods 18, and the diameter adjusting plates 16 are parallel to the inner wall of the bottom of the inclined storage bin 2. Two baffle plates II 19 are symmetrically and slidably connected to one inner wall of the storage bin 2, and the bottom ends of the baffle plates II 19 are fixedly connected to one ends of the corresponding diameter adjusting plates 16. By means of the electric push rods 18, the distance between the baffle plates II 19 and the inner wall of the bottom of the discharge port 9 can be adjusted, so that single shaft parts with different diameters can be in the discharge port 9, thus being suitable for batch processing of shaft parts with different diameters. The baffle plates II 19 can facilitate the shaft parts in the storage bin 2 to enter the gap between the outer wall of the bottom of the baffle plates II 19 and the inner wall of the bottom of the discharge port 9, avoiding getting stuck above the baffle plates II 19. The diameter adjusting plates 16 and the baffle plates II 19 will contact the outer walls of the corresponding length adjusting plates 8. Therefore, when the distance between the two length adjusting plates 8 is adjusted, the distance between the two diameter adjusting plates 16 and the distance between the two baffle plates II 19 will change synchronously, being able to adapt to the batch processing of different types of shaft parts.

[0028] As a further solution in the present invention, a semi-circular cavity 27 concentric with it is arranged inside each semi-circular plate 7. A notch 23 is arranged in the middle of each baffle plate I 11, and a rotating shaft 24 is rotatably connected to the top end of each notch 23. A swing plate 25 is fixedly connected to the outer wall of the rotating shaft 24, and the bottom end of the swing plate 25 extends into the semi-circular cavity 27. A hook spring 26 is arranged between the bottom end of the swing plate 25 and the inner wall of the semi-circular cavity 27. An electric push rod II 22 is arranged at the bottom of the notch 23, and the telescopic end of the electric push rod II 22 contacts the outer wall of the swing plate 25. By means of the electric push rod II 22, the inclination angle of the swing plate 25 can be changed. Since the bottom end of the swing plate 25 extends into the semi-circular cavity 27, the position of the semi-circular plate 7 for receiving the shaft parts can be adjusted, thus being able to adapt to shaft parts with different diameters and enabling only one shaft part to be received at the top of the semi-circular plate 7 at a time.

[0029] Working principle: The distance between the second baffle 19 and the inner wall of the bottom of the discharge port 9 can be adjusted by the electric push rod 18, so that single shaft parts with different diameters can be in the discharge port 9, thus suitable for batch processing of shaft parts with different diameters. The second baffle 19 can facilitate the shaft parts in the storage bin 2 to enter the gap between the outer wall of the bottom of the second baffle 19 and the inner wall of the bottom of the discharge port 9, avoiding being stuck above the second baffle 19. The diameter adjustment plate 16 and the second baffle 19 will contact the outer wall of the corresponding length adjustment plate 8. Therefore, when adjusting the distance between the two length adjustment plates 8, the distance between the two diameter adjustment plates 16 and the distance between the two second baffles 19 will change synchronously, which can adapt to the batch processing of different types of shaft parts. And the inclination angle of the swing plate 25 can be changed by the electric push rod 22. Since the bottom end of the swing plate 25 extends into the semi-circular cavity 27, the position of the semi-circular plate 7 for receiving shaft parts can be adjusted, so as to adapt to shaft parts with different diameters, and only one shaft part can be received at the top of the semi-circular plate 7 at a time. To sum up, through the adjustable diameter adjustment plate 16 and swing plate 25, the automatic material distribution requirements of different types of shaft parts can be quickly adapted, significantly improving the tool change efficiency and versatility.

[0030] Embodiment 3: Refer to Figures 6-7 , a double-spindle CNC lathe. Compared with Embodiment 2, on the basis of Embodiment 2, a second mounting plate 36 is provided on one side below the discharge port 9, and the second mounting plate 36 is fixedly connected to the outer wall of the double-spindle lathe body 1. A third electric push rod 35 is rotatably connected to the middle of the second mounting plate 36, and the telescopic end of the third electric push rod 35 is fixedly connected to a lifting and rotating plate 40.

[0031] As a further solution in the present invention, two arc-shaped bearing plates 39 are symmetrically and fixedly connected to the outer wall of the top of the lifting and rotating plate 40, and a slope is provided on one side of the arc-shaped bearing plate 39 close to the discharge port 9, and a vertical surface is provided on the other side of the arc-shaped bearing plate 39. The shaft parts rolling down along the swing plate 25 can fall into the arc-shaped bearing plate 39, and the vertical surface can prevent the shaft parts from rolling out of the arc-shaped bearing plate 39.

[0032] As a further solution in the present invention, a rotating motor 37 is installed on the outer wall of one side of the top of the second mounting plate 36, and a first gear 38 is fixedly connected to the output shaft end of the rotating motor 37. A second gear 41 is engaged with one side of the first gear 38, and the second gear 41 is fixedly connected to the third electric push rod 35. When the arc-shaped bearing plate 39 has received and distributed the shaft parts, the rotating motor 37 drives the first gear 38 to rotate. Since the first gear 38 is engaged with the second gear 41 on the outer wall of the third electric push rod 35, the lifting and rotating plate 40 rotates by ninety degrees to make the lifting and rotating plate 40 parallel to the double-spindle lathe body 1, and then the lifting and rotating plate 40 is moved upward by the third electric push rod 35 until it reaches the highest position.

[0033] As a further solution in the present invention, two hydraulic cylinders 1-28 are symmetrically and fixedly connected to the outer wall of the top of the double-spindle lathe body 1, and the telescopic ends of the two hydraulic cylinders 1-28 are fixedly connected to a mounting bracket 29. A threaded rod is rotatably connected inside the mounting bracket 29. A second threaded slider 30 is threadedly slidably connected to the outer wall of the threaded rod. A driving motor 33 is provided at one end of the threaded rod. A hydraulic cylinder 2-31 is fixedly connected to the outer wall of the second threaded slider 30. The telescopic end of the hydraulic cylinder 2-31 is fixedly connected to a first mounting plate 32. Two mechanical claws 34 are symmetrically arranged at the bottom of the first mounting plate 32. Then, the hydraulic cylinder 1-28 is activated to move the two mechanical claws 34 below the first mounting plate 32 above the shaft parts on the arc-shaped bearing plate 39. Then, the hydraulic cylinder 2-31 is activated to move the mechanical claws 34 downward so that the mechanical claws 34 grasp the shaft parts. Finally, the driving motor 33 rotates the threaded rod forward and backward to move the second threaded slider 30 left and right, enabling the shaft parts to be fed into the double-spindle lathe body 1 and brought close to one of the spindles in the double-spindle lathe body 1. Then, the spindle automatically clamps and fixes the shaft parts. Then, the first mounting plate 32 is withdrawn from the double-spindle lathe body 1 with the mechanical claws 34, and then processing is carried out. When the shaft parts are processed, the mechanical claws 34 are inserted into the double-spindle lathe body 1 to grasp the processed shaft parts, and then moved out of the double-spindle lathe body 1 and finally placed in an external finished product box, thus realizing the fully unmanned operation of shaft parts from material separation to feeding, processing, and discharging, significantly improving the automation level and production efficiency.

[0034] Working principle: The shaft parts rolling down along the swing plate 25 can fall into the arc-shaped bearing plate 39. The vertical surface can prevent the shaft parts from rolling out of the arc-shaped bearing plate 39. After the arc-shaped bearing plate 39 has received and distributed the shaft parts, the rotating motor 37 drives the first gear 38 to rotate. Since the first gear 38 meshes with the second gear 41 on the outer wall of the third electric push rod 35, the lifting and rotating plate 40 rotates by 90 degrees, making the lifting and rotating plate 40 parallel to the double-spindle lathe body 1. Then, the third electric push rod 35 makes the lifting and rotating plate 40 move upward until it reaches the highest position. Next, the first hydraulic rod 28 is activated, causing the two mechanical claws 34 under the first mounting plate 32 to move above the shaft parts on the arc-shaped bearing plate 39. Then, the second hydraulic rod 31 is activated, causing the mechanical claws 34 to move downward, enabling the mechanical claws 34 to grasp the shaft parts. And the driving motor 33 can make the threaded slider 2 move left and right by rotating the threaded rod forward and backward, and can send the shaft parts into the double-spindle lathe body 1, making it close to one of the spindles in the double-spindle lathe body 1. Then, this spindle automatically clamps and fixes the shaft parts. Then, the first mounting plate 32 drives the mechanical claws 34 to withdraw from the double-spindle lathe body 1, and then processing is carried out. When the shaft parts are processed, the mechanical claws 34 are inserted into the double-spindle lathe body 1, grasping the processed shaft parts, and then moving out of the double-spindle lathe body 1, and finally putting them into the external finished product box. Through the cooperation of the first hydraulic rod 28, the second hydraulic rod 31 and the mechanical claws 34, the fully unmanned operation of shaft parts from material distribution to loading, processing, and unloading is realized, significantly improving the automation level and production efficiency.

[0035] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent replacements or changes, should be covered within the protection scope of the present invention.

Claims

1. A double-spindle CNC lathe, comprising a double-spindle lathe body (1), characterized in that, On one side of the double-spindle lathe body (1), there is a storage bin (2), and on one side of the storage bin (2), there is a discharge port (9). The inner wall of the bottom of the storage bin (2) is an inclined plane. Both ends of the discharge port (9) are fixedly connected with fixing plates (5), and drive shafts (6) are rotatably connected to the outer walls of the opposite sides of the fixing plates (5). Semi-circular grooves (4) are arranged at the opposite ends of the two drive shafts (6), and a plurality of semi-circular plates (7) are arranged between the two drive shafts (6). Semi-cylinders (3) are fixedly connected between adjacent two semi-circular plates (7), and the two semi-circular plates (7) at the edges are respectively fixedly connected to the side walls of the corresponding semi-circular grooves (4). The axis of the semi-cylinder (3) is collinear with the axis of the semi-circular plate (7), and the axis of the drive shaft (6) is collinear with the axis of the semi-circular plate (7). On the outer wall of the top of each semi-circular plate (7) away from the discharge port (9), a first baffle (11) is vertically fixedly connected. A first servo motor (10) is arranged at one end of one of the drive shafts (6). Length adjustment mechanisms are arranged inside both sides of the storage bin (2). The outer walls of the tops of the semi-circular plates (7) are aligned with the inclined inner wall of the bottom of the storage bin (2) to jointly form an inclined plane.

2. The double-spindle CNC lathe according to claim 1, characterized in that, The length adjustment mechanism includes a bidirectional threaded rod (13). The bidirectional threaded rods (13) are rotatably connected inside the storage bin (2), and a second servo motor (15) is arranged at one end of each bidirectional threaded rod (13). Threaded sliders one (12) are threadedly slidably connected to the outer walls on both sides of the bidirectional threaded rod (13).

3. A double-spindle CNC lathe according to claim 2, characterized in that, Two length adjustment plates (8) are arranged between the two bidirectional threaded rods (13), and the length adjustment plates (8) are slidably connected inside the storage bin (2). The shape of the length adjustment plates (8) is adapted to the inside of the storage bin (2), and drive plates (14) are hinged between the length adjustment plates (8) and the corresponding two threaded sliders one (12).

4. A double-spindle CNC lathe according to claim 3, characterized in that, A through groove (17) is opened at the top of the discharge port (9), and two sliders (21) are symmetrically slidably connected to the inner wall of the through groove (17). Electric push rods one (18) are installed on the two sliders (21), and a connecting spring (20) is fixedly connected between the two sliders (21).

5. A double-spindle CNC lathe according to claim 4, characterized in that, The telescopic ends of the electric push rods one (18) are fixedly connected with diameter adjustment plates (16), and the diameter adjustment plates (16) are parallel to the inclined inner wall of the bottom of the storage bin (2). Two second baffles (19) are symmetrically slidably connected to one inner wall of the storage bin (2), and the bottom ends of the second baffles (19) are fixedly connected to one end of the corresponding diameter adjustment plates (16).

6. The double-spindle CNC lathe according to claim 5, characterized in that, Inside each of the semi-circular plates (7), there is a semi-circular cavity (27) with the same center of the circle. In the middle of each of the first baffles (11), there is a notch (23), and a rotating shaft (24) is rotatably connected to the top end of each notch (23). A swing plate (25) is fixedly connected to the outer wall of the rotating shaft (24), and the bottom end of the swing plate (25) extends into the semi-circular cavity (27). A hook spring (26) is arranged between the bottom end of the swing plate (25) and the inner wall of the semi-circular cavity (27). An electric push rod two (22) is arranged at the bottom of the notch (23), and the telescopic end of the electric push rod two (22) contacts the outer wall of the swing plate (25).

7. A double-spindle CNC lathe according to claim 6, characterized in that, On one side below the discharge port (9), there is a second mounting plate (36), and the second mounting plate (36) is fixedly connected to the outer wall of the double-spindle lathe body (1). In the middle of the second mounting plate (36), an electric push rod three (35) is rotatably connected, and the telescopic end of the electric push rod three (35) is fixedly connected to a lifting and rotating plate (40).

8. A double-spindle CNC lathe according to claim 7, characterized in that, On the top outer wall of the lifting and rotating plate (40), two arc-shaped bearing plates (39) are symmetrically and fixedly connected. On one side of the arc-shaped bearing plate (39) close to the discharge port (9), there is a slope, and on the other side of the arc-shaped bearing plate (39), there is a vertical surface.

9. The double-spindle CNC lathe according to claim 8, wherein, On one side of the top outer wall of the second mounting plate (36), a rotating motor (37) is installed, and a first gear (38) is fixedly connected to the output shaft end of the rotating motor (37). A second gear (41) is meshed with one side of the first gear (38), and the second gear (41) is fixedly connected to the electric push rod three (35).

10. A double-spindle CNC lathe according to claim 9, characterized in that, On the top outer wall of the double-spindle lathe body (1), two first hydraulic rods (28) are symmetrically and fixedly connected. The telescopic ends of the two first hydraulic rods (28) are fixedly connected to a mounting frame (29). A threaded rod is rotatably connected inside the mounting frame (29). A second threaded slider (30) is threadedly slidably connected to the outer wall of the threaded rod. One end of the threaded rod is provided with a driving motor (33). A second hydraulic rod (31) is fixedly connected to the outer wall of the second threaded slider (30), and the telescopic end of the second hydraulic rod (31) is fixedly connected to a first mounting plate (32). Two mechanical claws (34) are symmetrically arranged at the bottom of the first mounting plate (32).

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