Numerical control cutting machine for machining shaft parts

Abstract

The invention relates to the technical field of cutting machining, and particularly discloses a numerical control cutting machine for shaft part machining, which comprises a pair of cutting machine bodies and an electromagnetic slide rail frame, a clamp capable of clamping a part and a cutter for machining the part are arranged in the pair of cutting machine bodies, and a feeding conveying mechanism and a discharging conveying mechanism capable of conveying the part are arranged on the outer portions of the two sides, away from each other, of the two cutting machine bodies correspondingly. The electromagnetic sliding rail frame is installed on the tops of the two cutting machine bodies, and a pair of electromagnetic sliding blocks are arranged on the electromagnetic sliding rail frame in a sliding mode. Lifting manipulators are mounted on the pair of electromagnetic sliding blocks; through cooperative work of the feeding conveying mechanism, the mechanical arm and the discharging conveying mechanism, automatic transfer feeding and discharging in the part cutting machining process are achieved, the labor intensity of workers is relieved, and the part machining efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of cutting technology, and in particular to a CNC cutting machine for machining shaft-type parts. Background Technology

[0002] With the rapid development of industrial automation, CNC cutting technology is being used more and more widely in the field of machining. CNC cutting machines, with their high precision and high efficiency, have become an indispensable piece of equipment in modern manufacturing. Especially in the machining of shaft parts, CNC cutting machines can meet the cutting requirements of complex shapes and high precision, greatly improving production efficiency and product quality.

[0003] In the existing technology, the equipment used for cutting shaft parts is mostly semi-automatic or manual milling lathes. During the processing, manual transfer and installation of parts are required, resulting in a low overall level of automation and low processing efficiency. Summary of the Invention

[0004] This application provides a CNC cutting machine for machining shaft parts, which has the function of automatically loading and unloading parts for cutting and machining, reducing manual transfer and installation of parts at different machining positions, improving part machining efficiency and reducing manual labor intensity.

[0005] This application provides a CNC cutting machine for machining shaft-type parts, which adopts the following technical solution: A CNC cutting machine for machining shaft-type parts includes a pair of cutting machine bodies and an electromagnetic slide rail frame. The pair of cutting machine bodies are equipped with a clamping fixture for holding parts and a cutting tool for machining parts. On the outer sides of the two cutting machine bodies, which are far apart from each other, are respectively provided a loading conveyor and a unloading conveyor for transporting parts. The electromagnetic slide rail frame is mounted on the top of the two cutting machine bodies, and a pair of electromagnetic sliders are slidably mounted on the electromagnetic slide rail frame. Each pair of electromagnetic sliders is equipped with a liftable robotic arm. The robotic arms can clamp parts and move them to different workstations.

[0006] By adopting the above technical solution, during the cutting and machining of parts, the parts to be processed are sequentially transported to designated positions by the loading and conveying mechanism, and then the robot arm clamps the parts. When the electromagnetic slider moves on the electromagnetic slide rail, the robot arm will drive the parts to move into the two cutting machine bodies. The parts are then cut by the tools set in the cutting machine bodies. After the parts are processed, the robot arm takes out the parts and transports and collects them through the unloading and conveying mechanism. This realizes the automatic loading and unloading of parts during cutting and machining, reduces the manual transfer and installation of parts at different processing positions, improves the processing efficiency of parts, and reduces the intensity of manual labor.

[0007] Preferably, the feeding and conveying mechanism includes a base disposed on the outside of one side of the cutting machine body; a pair of support plates are vertically fixed to the top surface of the base; a pair of rotating shafts are horizontally rotatably connected to the inner walls of the two support plates; a pair of sprockets are coaxially fixed to the outer walls of the two rotating shafts, and a pair of chains are also disposed on the outer walls of the two rotating shafts; the two chains are respectively sleeved on the outside of the two pairs of sprockets, and multiple workpiece seats are disposed on the outer wall of each chain; a first motor is also installed on the outer wall of the support plate; the output end of the first motor is coaxially fixed to the end of one of the two rotating shafts.

[0008] By adopting the above technical solution, the parts to be processed are evenly spaced and placed on two chains. The parts are supported by the workpiece seats set on the chains. When the first motor is started and drives the rotating shaft to rotate, the two chains rotate synchronously under the cooperation of the chain and sprocket, and drive the parts placed on them to be transported so that the parts can be moved to the designated position and then picked up by the robot for loading and processing.

[0009] Preferably, a pair of first lead screws are horizontally rotatably connected to the top surface of the base via a belt structure; the pair of first lead screws are coaxial with the rotating shaft, and a pair of limiting plates located on the outer sides of the two first lead screws are respectively sleeved on the outside of the two support plates; the limiting plates are threadedly engaged with the first lead screws; the threads of the pair of first lead screws that engage with the two limiting plates are symmetrically arranged, and a handwheel is coaxially provided at one end of each of the two first lead screws.

[0010] By adopting the above technical solution, the two limiting plates set outside the two support plates can be used to limit and block the parts, reducing the possibility of the parts shifting or falling during the transportation process. Furthermore, by rotating the handwheel, the two first lead screws can be driven to rotate synchronously, causing the two limiting plates to move towards or away from each other along the first lead screws, thereby adjusting the distance between the two limiting plates so as to adjust the appropriate limiting distance according to the size of the parts.

[0011] Preferably, a straight plate is vertically fixed to the top surface of the base at one end near the electromagnetic slide rail frame; a vertically arranged slide groove is formed on the straight plate; a slide plate is slidably disposed on the inner wall of the slide groove; a pair of lifting claws movable to the bottom of the part are fixed to the outer wall of the slide plate near the chain; a cylinder located at the bottom of the slide plate is vertically mounted on the outer wall of the straight plate away from the lifting claws; the output end of the cylinder is fixed to the bottom surface of the slide plate; a photoelectric sensor capable of detecting the position of the part is mounted on the top surface of the limiting plate at one end near the straight plate; a controller electrically connected to the photoelectric sensor is provided on the base; the controller is electrically connected to the cylinder, and the controller controls the operation of the cylinder.

[0012] By adopting the above technical solution, the photoelectric sensor can detect whether a part is passing through a designated position. When the photoelectric sensor detects a part at the designated position, the controller will control the cylinder to start and push the slide plate upward, causing the lifting claw to move upward and lift the part at the end of the chain, so that the robot can grip the part for subsequent cutting processing. After the part is gripped, the cylinder drives the slide plate downward, causing the lifting claw to fall back to the initial position, so that subsequent parts can be moved to the lifting station for lifting and gripping.

[0013] Preferably, the feeding and conveying mechanism includes a concave seat and a conveyor belt; the concave seat is located on the outside of the cutting machine body on the side away from the base, and a pair of rotating rollers are horizontally installed on the inner wall of the concave seat; the conveyor belt is sleeved on the outside of the pair of rotating rollers, and multiple spacers are evenly spaced on the conveyor belt; a second motor is installed on the outer wall of the concave seat; the output end of the second motor is coaxially fixed to the end of one of the two rotating rollers.

[0014] By adopting the above technical solution, starting the second motor can drive the rotating roller to rotate, thereby causing the conveyor belt to roll. When the robot places the processed parts on the conveyor belt, the rolling conveyor belt will drive the parts to move, realizing the conveying of the parts. The partition strip can also effectively prevent the parts from colliding with each other while assisting in the conveying.

[0015] Preferably, a ring tube is arranged around the outside of the cutting tool; a water spray nozzle facing the cutting tool is provided on the outer wall of the ring tube; a cold water tank is provided at the bottom of the cutting machine body; the cold water tank contains coolant; a pump body is installed on the outer wall of the cutting machine body; the pump body has an inlet pipe connected to the cold water tank at its input end, and an outlet pipe connected to the ring tube at its output end.

[0016] By adopting the above technical solution, when the tool is machining the part, the pump body is started to draw out the coolant contained in the cold water tank and deliver it to the ring pipe, and then it is discharged through the water spray nozzle. The high-speed water flow washes the surface of the part and the tool along the length of the tool, cooling the tool and removing the cutting tail material from the surface of the part.

[0017] Preferably, the cutting machine body has a drain port on the inner bottom wall of the cold water tank; a filter screen is installed on the inner wall of the cold water tank, and a semiconductor cooling chip is provided on the outer wall of the cold water tank.

[0018] By adopting the above technical solution, after the coolant cools the tool machining part, the coolant will carry the cutting tail material from the drain port to the cold water tank, and then the coolant will be filtered by the filter screen to remove impurity particles. The semiconductor refrigeration chip is used to dissipate heat and cool the coolant so as to realize the recycling of the coolant.

[0019] Preferably, a third motor is installed on the outer wall of the cold water tank; a second lead screw extending to the top of the filter screen is coaxially fixed to the output end of the third motor; a cleaning brush that is threadedly engaged with the second lead screw is sleeved on the outer wall of the second lead screw; the cleaning brush slides in conjunction with the inner wall of the cold water tank and contacts the top surface of the filter screen.

[0020] By adopting the above technical solution, during the continuous filtration of coolant by the filter screen, the third motor can be started to drive the second lead screw to rotate, so that the cleaning brush moves back and forth along the axis of the second lead screw to clean the surface of the filter screen, causing the impurity particles on the surface of the filter screen to accumulate at both ends of the filter screen, reducing the possibility of the filter screen mesh being blocked and ensuring the water permeability of the filter screen.

[0021] Preferably, the cold water tank has discharge ports on both sides of the second lead screw end; each discharge port has a guide plate fixed to its inner bottom wall, which is inclined downwards and faces outwards from the cold water tank; the guide plate is positioned lower than the filter screen.

[0022] By adopting the above technical solution, when the cleaning brush sweeps the impurity particles to the two ends of the filter screen and they accumulate, the impurity particles will be discharged through the guide plate at the discharge port, so that the staff can collect and clean the impurity particles.

[0023] Preferably, the cutting machine body is provided with an engraving device on the outer side near the concave frame.

[0024] By adopting the above technical solution, the engraving device can perform mechanical engraving on parts.

[0025] In summary, this application has the following beneficial effects: 1. The feeding and conveying mechanism transports the parts sequentially to the designated position. The robot grips the parts and moves them sequentially into the two cutting machine bodies by the movement of the electromagnetic slider. The parts are then cut and processed accordingly. After the parts are processed, the robot removes them and transports them through the unloading and conveying mechanism. This realizes automatic loading and unloading of parts for cutting and processing, improves the efficiency of parts processing, and reduces the intensity of manual labor. 2. The two limiting plates set outside the two support plates can be used to limit and block the parts, reducing the possibility of the parts shifting or falling during the conveying process. Furthermore, by turning the handwheel, the two first lead screws can be driven to rotate synchronously, causing the two limiting plates to move towards or away from each other along the first lead screws, thereby adjusting the distance between the two limiting plates so as to adjust the appropriate limiting distance according to the size of the parts. 3. When the tool is machining the part, the pump body is started to draw out the coolant in the cold water tank and deliver it to the ring pipe. Then it is discharged through the water spray nozzle. The high-speed water flow washes the surface of the part and the tool along the length of the tool, cooling the tool and removing the cutting residue from the surface of the part. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of a CNC cutting machine for machining shaft-type parts. Figure 2 This is a schematic diagram of the material feeding and conveying mechanism in this application; Figure 3 This is a schematic diagram of the mating structure between the chain and the workpiece seat on the support plate in this application; Figure 4 This is a schematic diagram of the cooperative structure of the cylinder, the sliding plate, and the lifting gripper on the straight plate in this application; Figure 5 This is a schematic diagram of the internal structure of the cutting machine body in this application; Figure 6 This is a schematic diagram of the mating structure of the pump body and the cold water tank in this application; Figure 7 This is a schematic diagram of the material feeding and conveying mechanism in this application.

[0027] Explanation of reference numerals in the attached drawings: 1. Cutting machine body; 11. Fixture; 12. Cutting tool; 13. Ring pipe; 131. Water spray nozzle; 14. Pump body; 141. Water inlet pipe; 142. Water outlet pipe; 15. Drain outlet; 2. Electromagnetic slide rail frame; 21. Electromagnetic slider; 22. Robotic arm; 3. Feeding and conveying mechanism; 31. Base; 32. Support plate; 321. Rotating shaft; 322. Sprocket; 323. Chain; 324. Workpiece seat; 33. First motor; 34. Belt structure; 35. First lead screw; 351 36. Handwheel; 37. Limit plate; 38. Straight plate; 39. Slide rail; 30. Slide plate; 30. Lifting claw; 31. Cylinder; 32. Photoelectric sensor; 33. Controller; 4. Material feeding and conveying mechanism; 44. Concave seat; 45. Conveyor belt; 46. Spacer; 47. Rotary roller; 48. Second motor; 59. Cold water tank; 50. Filter screen; 51. Semiconductor cooling chip; 52. Discharge port; 53. Guide plate; 60. Third motor; 61. Second lead screw; 62. Cleaning brush; 7. Engraving device. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," "lower," "bottom," and "top" used in the following description refer to directions in the drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0029] This invention discloses a CNC cutting machine for machining shaft-type parts, such as... Figure 1As shown, the device includes an electromagnetic slide rail frame 2, an electromagnetic slider 21, a feeding conveyor mechanism 3, and a discharging conveyor mechanism 4. The electromagnetic slider 21 is slidably mounted on the electromagnetic slide rail frame 2. A liftable robotic arm 22 is mounted on the electromagnetic slider 21. This robotic arm 22 is existing technology and can rotate at multiple angles, so it will not be described in detail here. At the bottom of the electromagnetic slide rail frame 2, a pair of cutting machine bodies 1 and engraving devices 7 are arranged in sequence along the moving direction of the electromagnetic slider 21. The feeding conveyor mechanism 3 is located on the outside of the cutting machine body 1 away from the engraving device 7, and the discharging conveyor mechanism 4 is located on the outside of the engraving device 7 away from the cutting machine body 1.

[0030] The feeding conveyor 3 transports the parts sequentially to the designated position. The robot arm 22 grips the parts and moves them into the two cutting machine bodies 1 and the engraving device 7 by the movement of the electromagnetic slider 21. The parts are then subjected to corresponding cutting and engraving processes in sequence. After the parts are processed, the robot arm 22 removes the parts and transports them through the unloading conveyor 4. This achieves automatic loading and unloading of parts for cutting and processing, improves the efficiency of parts processing, and reduces the intensity of manual labor.

[0031] like Figure 2 and Figure 3 As shown, the feeding and conveying mechanism 3 includes a base 31, a pair of chains 323, and a first motor 33. The base 31 is located on the outside of the two cutting machine bodies 1 on the side away from the engraving device 7. A pair of parallel support plates 32 are vertically fixed to the base 31. A pair of rotating shafts 321 are horizontally rotatably connected to the inner walls of the two support plates 32. A pair of sprockets 322 are coaxially fixed to the outer wall of each rotating shaft 321. A pair of chains 323 are respectively sleeved on the outside of the sprockets 322 on the outer walls of the two rotating shafts 321. The chains 323 drive the two sprockets 322 on the two rotating shafts 321 to move together. A plurality of workpiece seats 324 for mounting parts are fixed to the outer wall of each chain 323. The first motor 33 is horizontally mounted on the outer wall of the support plate 32. The output end of the first motor 33 is coaxially fixed to the end of one of the two rotating shafts 321.

[0032] The parts are placed evenly spaced on the two chains 323. The parts are supported by the workpiece seats 324 set on the chains 323. When the first motor 33 is started to drive the rotating shaft 321 to rotate, the two chains 323 rotate synchronously and drive the parts placed on them to be transported under the cooperation of the chains 323 and sprockets 322, so that the parts can be picked up and processed after they are moved to the designated position.

[0033] like Figure 1 and Figure 2As shown, a pair of parallel first lead screws 35 are horizontally rotatably connected to the top surface of the base 31. A handwheel 351 is coaxially fixed to one end of each of the two first lead screws 35. The two first lead screws 35 are connected by a belt structure 34. This belt mechanism is an existing transmission structure that can make the two first lead screws 35 move together, which will not be described in detail here. The same pair of limiting plates 36 are sleeved on the outside of the two first lead screws 35. The two limiting plates 36 are vertically arranged and located outside the two support plates 32 on the sides away from each other. The two limiting plates 36 and the first lead screws 35 are threadedly driven and engaged. The threads on the outer wall of the first lead screws 35 that engage with the two limiting plates 36 are symmetrically arranged.

[0034] The two limiting plates 36 can be used to limit and block the parts, reducing the possibility of the parts shifting or falling during the conveying process. When the handwheel 351 is turned to drive the two first lead screws 35 to rotate synchronously, the two limiting plates 36 will move towards or away from each other along the first lead screws 35, thereby realizing the adjustment of the distance between the two limiting plates 36, so as to adjust the appropriate limiting distance according to the size of the parts.

[0035] like Figure 1 and Figure 4 As shown, a straight plate 37 is vertically fixed to the top surface of the base 31 at one end near the electromagnetic slide rail frame 2. A slide groove 371 is vertically opened on the straight plate 37. A slide plate 372 is slidably connected to the inner wall of the slide groove 371. A pair of lifting claws 373 that can be moved to the bottom of the workpiece are fixed to the side wall of the slide plate 372 near the chain 323. A cylinder 374 located at the bottom of the slide plate 372 is vertically fixed to the outer wall of the straight plate 37 away from the lifting claws 373. The output end of the cylinder 374 is fixed to the bottom surface of the slide plate 372.

[0036] When a part is transported to the lifting position, cylinder 374 pushes slide plate 372 upward, causing lifting claw 373 to move upward and lift the part at the lifting station, so that robot arm 22 can grip the part and move it to the cutting station for processing. After the part is gripped, cylinder 374 drives slide plate 372 downward, and lifting claw 373 returns to the initial position, so that subsequent parts can be moved to the lifting station for continued lifting.

[0037] like Figure 2 and Figure 4 As shown, one of the two limiting plates 36 has a photoelectric sensor 38 installed on the top surface near the end of the straight plate 37. The photoelectric sensor 38 can detect whether the part has reached the designated position. The base 31 is provided with a controller 39 whose input end is electrically connected to the photoelectric sensor 38. The output end of the controller 39 is electrically connected to both cylinders 374. The controller 39 controls the two cylinders 374 to work synchronously.

[0038] The photoelectric sensor 38 can detect whether a part is passing through a designated position. When the photoelectric sensor 38 detects a part at the designated position, the controller 39 will control the cylinder 374 to work, thereby realizing the automatic control of the part lifting operation.

[0039] like Figure 5 and Figure 6 As shown, the cutting machine body 1 is equipped with a clamp 11 for holding parts and a cutting tool 12 for machining parts. A ring pipe 13 is arranged around the outside of the cutting tool 12. Multiple water spray nozzles 131 inclined towards the cutting tool 12 are provided on the outer wall of the ring pipe 13. The multiple water spray nozzles 131 are evenly distributed around the circumference of the ring pipe 13. A cold water tank 5 containing coolant is provided at the bottom of the cutting machine body 1. A pump body 14 is installed on the outer wall of the cutting machine body 1. The input end of the pump body 14 is fixedly connected to an inlet pipe 141 communicating with the inside of the cold water tank 5. The output end of the pump body 14 is fixedly connected to an outlet pipe 142 communicating with the ring pipe 13.

[0040] When the part is being machined, the pump body 14 is started to draw out the coolant contained in the cold water tank 5 and deliver it to the ring pipe 13. Then it is discharged through the water spray nozzle 131. The high-speed water flow washes the surface of the part and the tool 12 along the length of the tool 12, cooling the tool 12 and taking away the cutting tail material on the surface of the part.

[0041] like Figure 5 and Figure 6 As shown, the cutting machine body 1 has multiple drain ports 15 on the inner bottom wall corresponding to the cold water tank 5, a filter screen 51 is horizontally installed on the inner wall of the cold water tank 5 near the top, and multiple semiconductor cooling chips 52 are provided on the outer wall of the cold water tank 5.

[0042] After being sprayed, the coolant will carry the cutting tail material from the drain port 15 into the cold water tank 5. The filter screen 51 will filter the falling coolant to remove impurities and particles. The semiconductor cooling chip 52 is used to dissipate heat and cool the coolant so as to realize the recycling of the coolant and save water resources.

[0043] like Figure 5 and Figure 6 As shown, a third motor 6 is horizontally installed on the outer wall of the cold water tank 5. The output end of the third motor 6 is coaxially fixed to a second lead screw 61 that extends horizontally to the top of the filter screen 51. A cleaning brush 62 is sleeved on the outside of the second lead screw 61 and contacts the top surface of the filter screen 51. The cleaning brush 62 is threadedly driven with the second lead screw 61 and slides with the inner wall of the cold water tank 5. The cold water tank 5 has discharge ports 53 on both sides of the end of the second lead screw 61. The bottom wall of the discharge port 53 is flush with the top surface of the filter screen 51. A guide plate 531 that is inclined downward toward the outside of the cold water tank 5 is fixed on the bottom wall of the discharge port 53.

[0044] During the long-term use of filter screen 51, the third motor 6 can be started to drive the second lead screw 61 to rotate, so that the cleaning brush 62 can clean the impurity particles on the surface of filter screen 51 along the axial direction of the second lead screw 61, so that the particle impurities can be discharged from the discharge port 53 and slide down along the guide plate 531, reducing the possibility of the mesh of filter screen 51 being blocked and ensuring the water permeability of filter screen 51.

[0045] like Figure 1 and Figure 7 As shown, the feeding and conveying mechanism 4 includes a concave seat 41, a conveyor belt 42, and a second motor 44. The concave seat 41 is located on the outside of the engraving device 7 on the side away from the cutting machine body 1. A pair of rotating rollers 43 are horizontally rotatably connected to the inner wall of the concave seat 41. The conveyor belt 42 is sleeved on the outside of the pair of rotating rollers 43. The conveyor belt 42 drives the pair of rotating rollers 43 to move together. Multiple spacers 421 are evenly spaced on the conveyor belt 42. The second motor 44 is horizontally installed on the outer wall of the concave seat 41. The output end of the second motor 44 is coaxially fixed to the end of one of the two rotating rollers 43.

[0046] If the second motor 44 is started, it can drive the two rollers 43 and the conveyor belt 42 to rotate. When the part is placed between two adjacent spacers 421 on the conveyor belt 42, the part will be moved during the rotation of the conveyor belt 42, so as to realize the unloading and conveying of the part and facilitate the collection of the part.

[0047] Working principle: Parts are evenly spaced and placed on two chains 323. The parts are supported by workpiece seats 324 set on the chains 323. When the first motor 33 is started and drives the rotating shaft 321 to rotate, the chains 323 and sprockets 322 work together to rotate the chains 323 and drive the parts placed on them to be transported. During the step-by-step feeding and transport of the parts, if the photoelectric sensor 38 detects a part at a designated position, the controller 39 will control the cylinder 374 to start pushing the slide plate 372 to move upward, causing the lifting claw 373 to move upward, lifting the part at the end of the chain 323 so that the robot arm 22 can grasp the part. After the part is grasped, the cylinder 374 drives the slide plate 372 to move downward, so that the lifting claw 373 returns to the initial position, so as to lift and grasp the subsequent parts. After the robotic arm 22 picks up the part, it will send the part to the cutting machine body 1 and the engraving device 7 in sequence for corresponding cutting and engraving processing. When the part is being cut, the pump body 14 will draw out the coolant in the cold water tank 5 and deliver it to the ring pipe 13, and then out through the water spray nozzle 131. The high-speed water flow will wash the surface of the part and the tool 12 along the length of the tool 12, cooling the tool 12 and removing the cutting tail material from the surface of the part. The washed coolant will then be discharged through the drain port 15. After the coolant is filtered and impurities are removed by the filter screen 51, the coolant will fall into the cold water tank 5 to realize the recycling of coolant and save water resources. After the cutting and engraving of the parts are completed, the robot arm 22 takes the parts out of the engraving device 7 and places them on the conveyor belt 42. As the second motor 44 starts and drives the conveyor belt 42 to roll, the conveyor belt 42 transports the parts so as to collect the processed parts.

[0048] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A CNC cutting machine for machining shaft-type parts, characterized in that: It includes a pair of cutting machine bodies (1) and an electromagnetic slide rail frame (2); the pair of cutting machine bodies (1) are provided with a clamp (11) for holding parts and a cutting tool (12) for processing parts. The two cutting machine bodies are respectively provided with a loading conveyor (3) and a unloading conveyor (4) for conveying parts on their respective outer sides; the electromagnetic slide rail frame (2) is installed on the top of the two cutting machine bodies (1), and a pair of electromagnetic sliders (21) are slidably arranged on the electromagnetic slide rail frame (2); each pair of electromagnetic sliders (21) is equipped with a lifting manipulator (22); the manipulator (22) can hold parts and move them to different work positions.

2. The CNC cutting machine for machining shaft-type parts according to claim 1, characterized in that: The feeding and conveying mechanism (3) includes a base (31) disposed on the outside of one side of the cutting machine body (1); a pair of support plates (32) are vertically fixed to the top surface of the base (31); a pair of rotating shafts (321) are horizontally rotatably connected to the inner walls of the two support plates (32); a pair of sprockets (322) are coaxially fixed to the outer walls of the two rotating shafts (321), and a pair of chains (323) are also provided on the outer walls of the two rotating shafts (321); the two chains (323) are respectively sleeved on the outside of the two pairs of sprockets (322), and a plurality of workpiece seats (324) are provided on the outer wall of each chain (323); a first motor (33) is also installed on the outer wall of the support plate (32); the output end of the first motor (33) is coaxially fixed to the end of one of the two rotating shafts (321).

3. A CNC cutting machine for machining shaft-type parts according to claim 2, characterized in that: The base (31) is horizontally rotatably connected to a pair of first lead screws (35) linked by a belt structure (34); the pair of first lead screws (35) are coaxial with the rotating shaft (321), and a pair of limiting plates (36) are respectively located on the outside of the two first lead screws (35). The limiting plates (36) are threadedly engaged with the first lead screws (35); the threads of the pair of first lead screws (35) that engage with the two limiting plates (36) are symmetrically arranged, and a handwheel (351) is coaxially arranged at one end of each of the two first lead screws (35).

4. A CNC cutting machine for machining shaft-type parts according to claim 3, characterized in that: The base (31) has a straight plate (37) vertically fixed to its top surface at one end near the electromagnetic slide rail frame (2); the straight plate (37) has a vertically arranged slide groove (371); a sliding plate (372) is slidably arranged on the inner wall of the slide groove (371); a pair of lifting claws (373) movable to the bottom of the part are fixed to the outer wall of the sliding plate (372) near the chain (323); a positioning device is vertically installed on the outer wall of the straight plate (37) away from the lifting claws (373). A cylinder (374) is located at the bottom of the slide plate (372); the output end of the cylinder (374) is fixedly connected to the bottom surface of the slide plate (372); a photoelectric sensor (38) capable of detecting the position of a part is installed on the top surface of the limiting plate (36) near the straight plate (37); a controller (39) electrically connected to the photoelectric sensor (38) is provided on the base (31); the controller (39) is electrically connected to the cylinder (374), and the controller (39) controls the cylinder (374) to work.

5. A CNC cutting machine for machining shaft-type parts according to claim 1, characterized in that: The feeding and conveying mechanism (4) includes a concave seat (41) and a conveyor belt (42); the concave seat (41) is located on the outside of the cutting machine body (1) away from the base (31), and a pair of rotating rollers (43) are horizontally installed on the inner wall of the concave seat (41); the conveyor belt (42) is sleeved on the outside of the pair of rotating rollers (43), and multiple spacers (421) are evenly spaced on the conveyor belt (42); a second motor (44) is installed on the outer wall of the concave seat (41); the output end of the second motor (44) is coaxially fixed to the end of one of the two rotating rollers (43).

6. A CNC cutting machine for machining shaft-type parts according to claim 1, characterized in that: The cutting tool (12) is surrounded by a ring pipe (13); a water spray nozzle (131) facing the cutting tool (12) is provided on the outer wall of the ring pipe (13); a cold water tank (5) is provided at the bottom of the cutting machine body (1); the cold water tank (5) contains coolant; a pump body (14) is installed on the outer wall of the cutting machine body (1); the pump body (14) has an inlet pipe (141) connected to the cold water tank (5) at its input end, and an outlet pipe (142) connected to the ring pipe (13) at its output end.

7. A CNC cutting machine for machining shaft-type parts according to claim 6, characterized in that: The cutting machine body (1) has a drain port (15) on the inner bottom wall of the cold water tank (5); a filter screen (51) is installed on the inner wall of the cold water tank (5), and a semiconductor cooling chip (52) is provided on the outer wall of the cold water tank (5).

8. A CNC cutting machine for machining shaft-type parts according to claim 7, characterized in that: A third motor (6) is installed on the outer wall of the cold water tank (5); a second lead screw (61) extending to the top of the filter screen (51) is coaxially fixed to the output end of the third motor (6); a cleaning brush (62) is sleeved on the outer wall of the second lead screw (61) and threadedly engaged with the second lead screw (61); the cleaning brush (62) slides with the inner wall of the cold water tank (5) and contacts the top surface of the filter screen (51).

9. A CNC cutting machine for machining shaft-type parts according to claim 8, characterized in that: The cold water tank (5) has discharge ports (53) on both sides of the end of the second lead screw (61); each discharge port (53) has a guide plate (531) that is inclined downward toward the outside of the cold water tank (5) and fixed on the bottom wall; the guide plate (531) is lower than the position of the filter screen (51).

10. A CNC cutting machine for machining shaft-type parts according to claim 5, characterized in that: The cutting machine body (1) has an engraving device (7) on the outside of the side near the concave frame.

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