Automatic numerical control lathe
By automatically feeding parts through a detection and adjustment device, the problems of high vibration and noise and unstable processing of automatic CNC lathes have been solved, and high-precision processing with low noise and low vibration has been achieved.
Patent Information
- Application Number
- CN202520017849.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-01-03
AI Technical Summary
Existing automatic CNC lathes have high vibration and noise levels, which affect employee health and machining accuracy, and the vibration also leads to unstable machining.
A detection device is used to check whether the ends of the parts have been machined, and the parts are turned by a turning device. No vibratory feeder is needed. Combined with a conveying device, the parts are automatically transported, reducing vibration and noise.
It has achieved low-noise and low-vibration automatic CNC lathes, protecting the health of employees, improving machining accuracy and stability, and reducing labor intensity.
Smart Images
Figure CN223642800U_ABST
Abstract
Description
Technical fields:
[0001] This utility model belongs to the field of mechanical processing technology, and specifically refers to an automatic CNC lathe. Background technology:
[0002] CNC lathes are mainly used for cutting the inner and outer cylindrical surfaces, inner and outer conical surfaces with arbitrary cone angles, complex rotating inner and outer curved surfaces, and cylindrical and conical threads of shaft or disc parts. They can also perform grooving, drilling, reaming, boring, and other operations.
[0003] When both ends of a shaft-type part need to be machined, after machining one end, traditional CNC lathes require manual identification of the end to be machined before clamping the machined end onto a fixture. To save labor costs, automatic CNC lathes using vibratory feeders have emerged on the market, arranging the ends of parts to be machined in the same direction. The shortcomings of existing automatic CNC lathes on the market are: 1. The vibratory feeder generates significant noise; long-term exposure to this noise can damage employees' hearing, work efficiency, and physical and mental health; 2. The high-frequency vibration generated by the vibratory feeder during operation affects the machining accuracy and stability of the lathe. Summary of the Invention:
[0004] The purpose of this invention is to provide an automatic CNC lathe that has low vibration and low noise, which will not affect the work efficiency and physical and mental health of employees, nor will it affect the machining accuracy and stability of the lathe.
[0005] This utility model is implemented as follows:
[0006] An automatic CNC lathe includes a bed, on which a spindle for rotating a part and a cutting tool for machining the part are provided. It also includes a controller, a detection device for detecting whether the end of the part has been machined, a turning device for turning the part, and a conveying device for conveying the part from the turning device to the spindle. The detection device, the turning device and the conveying device are electrically connected to the controller.
[0007] In the aforementioned automatic CNC lathe, the detection device includes a sensor, a detection fixture, and a conveyor belt for transporting parts to the detection fixture. The conveyor belt is driven by a drive device. The detection fixture has a detection area for the machined end of the part to extend into. The sensor detects whether a part exists in the detection area. The sensor and the drive device are electrically connected to a controller.
[0008] In the aforementioned automatic CNC lathe, the driving device is a rotary motor, a hydraulic motor, or an electric roller with a built-in motor.
[0009] In the aforementioned automatic CNC lathe, the turning device is a turntable located on the side of the conveyor belt. The turntable is driven to rotate by a power unit one, and the inspection fixture is driven to move between the conveyor belt and the turntable by a power unit two. The power unit one and the power unit two are respectively electrically connected to the controller.
[0010] In the aforementioned automatic CNC lathe, the turntable has recessed grooves for placing parts. The inspection fixture includes a push plate, which is driven by a power unit to move along the conveying direction of the vertical conveyor belt. The push plate is located above the conveyor belt and the turntable. The push plate has an opening groove with an open bottom. The side of the opening groove has a notch for the part to enter. A limiting block is provided in the opening groove. The limiting block has a U-shaped opening facing downwards. The width of the U-shaped opening is greater than the maximum width of the machined end of the part and less than the maximum width of the unmachined end of the part. The inspection area is formed inside the limiting block or on the side of the limiting block away from the notch.
[0011] In the aforementioned automatic CNC lathe, the method for determining whether there is a material shortage may include a second sensor for detecting whether there is a part inside the push plate, wherein the second sensor is electrically connected to the controller.
[0012] In the aforementioned automatic CNC lathe, sensor one and sensor two are proximity switches or contact displacement sensors. The proximity switch is a photoelectric proximity switch, an eddy current proximity switch, or a magnetic switch.
[0013] In the aforementioned automatic CNC lathe, the conveying device includes a mounting plate located above the spindle and a receiving block located near the cutting tool end of the spindle. The receiving block is driven vertically by a power device three and has a material groove. The turntable is disposed inside the mounting plate, which has a through groove. A push rod one that pushes the parts in the groove towards the material groove slides in the groove. The push rod one is driven to move by a power device four. The material groove has a push rod two that pushes the parts towards the spindle. The push rod two is driven to move by a power device five. The power devices three, four, and five are electrically connected to a controller.
[0014] In the aforementioned automatic CNC lathe, another method for determining whether there is a material shortage is as follows: the power unit four is a cylinder with a built-in magnetic switch. Both the magnetic switch and the cylinder are electrically connected to the controller. A magnetic ring is provided on the piston rod of the cylinder. The magnetic switch determines the extension length of the piston rod by sensing the position of the magnetic ring. When the push rod pushes the part to the material trough, the extension length of the piston rod is short; when there is no part at the front end of the push rod, the extension length of the piston rod is long.
[0015] In the aforementioned automatic CNC lathe, the bed is covered with a protective cover, and a partition is provided inside the protective cover. The partition divides the inner cavity of the protective cover into a loading area and a processing area. The detection device and the turning device are located in the loading area, and the cutting tool is located in the processing area. A horizontal fixing plate is provided on the partition, and a vertical fixing plate is provided on the horizontal fixing plate. The mounting plate is mounted on the horizontal fixing plate, the conveyor belt is mounted on the mounting plate, and the receiving block is mounted on the vertical fixing plate.
[0016] In the aforementioned automatic CNC lathe, the first power unit is a rotary cylinder mounted on a horizontal fixed plate; the conveyor belt is provided with a mounting base, and the first and second sensors are mounted on the mounting base; the second power unit is a cylinder mounted on the mounting base with a piston rod that moves linearly; the third power unit is a cylinder mounted on a vertical fixed plate with a piston rod that moves linearly; the fourth power unit is a cylinder mounted on a horizontal fixed plate with a piston rod that moves linearly; a vertical plate is slidably mounted on the vertical fixed plate, and a horizontal plate is provided at the lower end of the vertical plate; the piston rod of the third power unit is connected to the horizontal plate; the receiving block is mounted on the horizontal plate; and the fifth power unit is a cylinder mounted on the horizontal plate with a piston rod that moves linearly.
[0017] In the aforementioned automatic CNC lathe, the second power unit can also be a rotary motor or a hydraulic motor, and the second, third, fourth and fifth power units can also be linear motors, linear modules or hydraulic cylinders.
[0018] In the aforementioned automatic CNC lathe, a feeding device is provided on the side of the conveyor belt. The feeding device includes a material box disposed on the side of the conveyor belt and a pusher plate driven vertically by a power unit. The material box includes a bottom plate, a side plate one, a side plate two, a side plate three, and a side plate four. Side plate one and side plate two are arranged opposite to each other, and side plate one is closely attached to the conveyor belt. Side plate three and side plate four are arranged opposite to each other, and side plate three and side plate four are disposed between side plate one and side plate two. The pusher plate is disposed between the bottom plate and side plate one. The bottom plate gradually slopes downward from side plate two to side plate one. The upper surfaces of the pusher plate and side plate one are both inclined surfaces that gradually slope downward from side plate two towards the conveyor belt.
[0019] In the aforementioned automatic CNC lathe, a receiving plate is connected between side plate three and side plate four. The upper surface of the receiving plate is higher than the upper surface of the bottom plate and lower than the upper surface of side plate one. Pushing plates are provided between the receiving plate and side plate one, and between the receiving plate and the bottom plate. The upper surface of the pushing plate between the receiving plate and side plate one is higher than the upper surface of the pushing plate between the receiving plate and the bottom plate. The upper surface of the receiving plate is an inclined surface that gradually slopes downward from side plate two towards the conveyor belt side.
[0020] In the aforementioned automatic CNC lathe, there are two or more receiving plates spaced apart, and their height increases sequentially from one side of side plate two to one side of side plate one. A pusher plate is provided between two adjacent receiving plates, and the height of the pusher plate increases sequentially from one side of side plate two to one side of side plate one.
[0021] In the aforementioned type of automatic CNC lathe, the lower ends of each pusher plate are connected by a connecting plate.
[0022] In the aforementioned automatic CNC lathe, the power unit six is a linear motor, a linear module, a hydraulic cylinder, or a pneumatic cylinder.
[0023] The outstanding advantages of this utility model compared to the prior art are:
[0024] 1. This utility model uses a detection device to detect whether the end of a part has been machined, and then uses a turning device to turn the part that needs to be turned. It does not require a vibratory feeder, has low vibration and low noise, and will not affect the work efficiency and physical and mental health of employees, nor will it affect the machining accuracy and stability of the lathe.
[0025] 2. The detection device of this utility model includes a sensor, a detection fixture, and a conveyor belt for transporting parts to the detection fixture. The conveyor belt is driven by a drive device. The detection fixture has a detection area for the processed end of the part to extend into. The sensor detects whether there is a part in the detection area. The sensor and the drive device are electrically connected to the controller. The structure is simple, easy to process and install, and low in cost.
[0026] 3. The conveyor belt of this utility model is provided with a feeding device on the side. The feeding device includes a material box set on the side of the conveyor belt and a pusher plate driven vertically by a power device. The parts located at the bottom of the material box are pushed to the top by the pusher plate, which facilitates automatic feeding. The feeding height is low and the labor intensity is small. Attached image description:
[0027] Figure 1 This is a perspective view of an embodiment of the present invention without a protective cover;
[0028] Figure 2 This is a perspective view of the detection device, the turning device, and the feeding device according to Embodiment 1 of this utility model;
[0029] Figure 3 This is a perspective view of the push plate and the limiting block of Embodiment 1 of this utility model;
[0030] Figure 4 This is a perspective view of Embodiment 1 of this utility model;
[0031] Figure 5 This is a perspective view of the material box and receiving plate according to Embodiment 1 of this utility model;
[0032] Figure 6 This is a perspective view of the pusher plate and connecting plate of Embodiment 1 of this utility model;
[0033] Figure 7 This is a perspective view of the detection device, the turning device, and the feeding device of Embodiment 2 of this utility model.
[0034] Reference numerals: 1. Bed; 2. Part; 3. Spindle; 4. Sensor 1; 5. Conveyor belt; 6. Detection area; 7. Turntable; 8. Groove; 9. Push plate; 10. Opening slot; 11. Notch; 12. Limiting block; 13. U-shaped opening; 14. Mounting plate; 15. Receiving block; 16. Material trough; 17. Slide groove; 18. Push rod 1; 19. Protective cover; 20. Partition; 21. Horizontal fixing plate; 22. Vertical fixing plate; 23. Material box; 23a. Base plate; 23b. Side plate 1; 23c. Side plate 2; 23d. Side plate 3; 23e. Side plate 4; 24. Push plate; 25. Receiving plate; 26. Sensor 2; 27. Through hole; 28. Mounting base; 29. Vertical plate; 30. Horizontal plate; 31. Connecting plate. Detailed implementation method:
[0035] The present invention will be further described below with reference to specific embodiments. See also: Figure 1 —7:
[0036] Example 1: See Figure 1-6 :
[0037] An automatic CNC lathe includes a bed 1, on which a spindle 3 for rotating a part 2 and a cutting tool for machining the part 2 are provided. It also includes a controller, a detection device for detecting whether the end of the part 2 has been machined, a turning device for turning the part 2, and a conveying device for conveying the part 2 from the turning device to the spindle 3. The detection device, the turning device and the conveying device are electrically connected to the controller.
[0038] The working principle of this utility model is as follows: Figure 1-6 As shown, the detection device detects whether the end of part 2 has been machined and transmits the information to the controller. The controller controls the turning device to turn or not turn, and finally the controller controls the conveying device to transport part 2 from the turning device to the spindle 3.
[0039] This invention uses a detection device to detect whether the end of part 2 has been machined, and then uses a turning device to turn part 2 that needs to be turned. It does not require a vibratory feeder, has low vibration and low noise, and will not affect the work efficiency and physical and mental health of employees, nor will it affect the machining accuracy and stability of the lathe.
[0040] Structure of the detection device: such as Figure 1 , 2As shown in Figure 4, the detection device includes a sensor 4, a detection fixture, and a conveyor belt 5 that transports part 2 to the detection fixture. The conveyor belt 5 is driven by a drive device. The detection fixture has a detection area 6 for the machined end of part 2 to extend into. The sensor 4 detects whether part 2 exists in the detection area 6. The sensor 4 and the drive device are electrically connected to a controller. When the sensor 4 detects the presence of part 2 in the detection area 6, that is, the end of part 2 extends into the detection area, the detected end of part 2 is the machined end; when the sensor 4 does not detect the presence of part 2 in the detection area 6, that is, the end of part 2 cannot extend into the detection area, the detected end of part 2 is the unmachined end. The device has a simple structure, is easy to process and install, and has low cost.
[0041] Furthermore, the driving device is a rotary motor, a hydraulic motor, or an electric roller with a built-in motor. In this embodiment, the driving device is a rotary motor.
[0042] Structure of the reversing device: such as Figure 1 , 2 As shown in Figure 4, the turning device is a turntable 7 installed on the side of the conveyor belt 5. The turntable 7 is driven to rotate by a power unit one, and the detection fixture is driven to move between the conveyor belt 5 and the turntable 7 by a power unit two. The power unit one and the power unit two are electrically connected to the controller. The structure is simple, easy to install, and low in cost.
[0043] The specific structure of the detection device and the switching device: such as Figure 1-4 As shown, the turntable 7 has recessed grooves 8 for placing parts 2. The detection fixture includes a push plate 9, which is driven by a power device 2 to move along the conveying direction of the vertical conveyor belt 5. The push plate 9 is located above the conveyor belt 5 and the turntable 7. The push plate 9 has an opening groove 10 with an open bottom. The side of the opening groove 10 has a notch 11 for parts 2 to enter. A limiting block 12 is provided in the opening groove 10. The limiting block 12 has a U-shaped opening 13 with its opening facing downwards. The width of the U-shaped opening 13 is greater than the maximum width of the processed end of parts 2, and the width of the U-shaped opening 13 is less than the maximum width of the unprocessed end of parts 2. The detection area 6 is formed inside the limiting block 12 or on the side of the limiting block 12 away from the notch 11. In this embodiment, the limiting block 12 is U-shaped and elongated. The detection area 6 is formed inside the limiting block 12. The push plate 9 and the limiting block 12 have through holes 27 with positions corresponding to sensor 4.
[0044] The conveyor belt 5 transports part 2 to the push plate 9 and through the notch 11 into the opening groove 10. When the end of part 2 facing the limiting block 12 is the machined end, the machined end of part 2 enters the U-shaped opening 13, and sensor 4 detects the presence of part 2 in the detection area. When the end of part 2 facing the limiting block 12 is the unmachined end, the unmachined end of part 2 cannot enter the U-shaped opening 13, and sensor 4 detects that part 2 is not present in the detection area 6. The push plate 9 is driven by the second power unit to move part 2 to the turntable 7, and it falls into the groove 8 through the opening groove 10 and the lower opening of the U-shaped opening. Then, the push plate 9 is driven by the second power unit back onto the conveyor belt 5. If part 2 needs to be rotated, the first power unit drives the turntable 7 to rotate 180°.
[0045] Furthermore, the sensor 4 is a proximity switch or a contact displacement sensor. The proximity switch is a photoelectric proximity switch, an eddy current proximity switch, or a magnetic switch. In this embodiment, the material of part 2 contains iron, and the sensor 4 is a magnetic switch.
[0046] Structure of the conveying device: such as Figure 1 , 2 As shown in Figure 4, the conveying device includes a mounting plate 14 located above the main shaft 3 and a receiving block 15 located near the cutting tool end of the main shaft 3. The receiving block 15 is driven to move vertically by a power device 3, and a material groove 16 is provided on the receiving block 15. The turntable 7 is set inside the mounting plate 14, and a through slide groove 17 is provided inside the mounting plate 14. A push rod 18 that pushes the part 2 in the groove 8 towards the material groove 16 is slidably installed in the slide groove 17. The push rod 18 is driven to move by a power device 4. A push rod 2 that pushes the part 2 towards the main shaft 3 is provided on the material groove 16. The push rod 2 is driven to move by a power device 5. The power devices 3, 4 and 5 are electrically connected to the controller. When sensor 4 detects part 2 in detection area 6, turntable 7 is driven by power device 1 to rotate and turn part 2 so that the unprocessed end of part 2 faces receiving block 15. Power device 4 drives push rod 18 to push part 2 in groove 8 to material trough 16. Power device 3 drives receiving block 15 to move down to spindle 3. Power device 5 drives push rod 2 to push part 2 in material trough 16 to spindle 3. Tooling on spindle 3 clamps part 2. The rotation of spindle 3 drives part 2 to rotate. The tool processes the unprocessed end of part 2.
[0047] To protect the lathe of this utility model, such as Figure 4As shown, the bed 1 is covered with a protective cover 19, and the protective cover 19 is provided with a partition 20. The partition 20 divides the inner cavity of the protective cover 19 into a feeding area and a processing area. The detection device and the turning device are located in the feeding area, and the cutting tool is located in the processing area. The partition 20 is provided with a horizontal fixing plate 21, and the horizontal fixing plate 21 is provided with a vertical fixing plate 22. The mounting plate 14 is mounted on the horizontal fixing plate 21, the conveyor belt 5 is mounted on the mounting plate 14, and the receiving block 15 is mounted on the vertical fixing plate 22.
[0048] Furthermore, the first power device is a rotary cylinder mounted on the horizontal fixed plate 21; the conveyor belt 5 is provided with a mounting base 28, the first sensor 4 is mounted on the mounting base 28, the second power device is a cylinder mounted on the mounting base 28 with a piston rod that moves linearly; the third power device is a cylinder mounted on the vertical fixed plate 22 with a piston rod that moves linearly; the fourth power device is a cylinder mounted on the horizontal fixed plate 21 with a piston rod that moves linearly; a vertical plate 29 is slidably mounted on the vertical fixed plate 22, and a horizontal plate 30 is provided at the lower end of the vertical plate 29; the piston rod of the third power device is connected to the horizontal plate 30; the receiving block 15 is mounted on the horizontal plate 30; and the fifth power device is a cylinder mounted on the horizontal plate 30 with a piston rod that moves linearly.
[0049] Furthermore, the second power unit can also be a rotary motor or a hydraulic motor, and the second, third, fourth and fifth power units can also be linear motors, linear modules or hydraulic cylinders.
[0050] To facilitate automatic feeding and reduce labor intensity due to low feeding height, a feeding device is provided on the side of the conveyor belt 5. The feeding device includes a material box 23 located on the side of the conveyor belt 5 and a pusher plate 24 driven vertically by a power unit 6. The material box 23 includes a bottom plate 23a, a first side plate 23b, a second side plate 23c, a third side plate 23d, and a fourth side plate 23e. The first side plate 23b and the second side plate 23c are arranged opposite each other, and the first side plate 23b is in close contact with the conveyor belt 5. The side plates 23d and 23e are arranged opposite to each other, and are positioned between side plate 23b and side plate 23c. The pusher plate 24 is positioned between the bottom plate 23a and side plate 23b. The bottom plate 23a gradually slopes downward from side plate 23c to side plate 23b. The upper surfaces of the pusher plate 24 and side plate 23b are both inclined surfaces that gradually slope downward from the side of side plate 23c towards the side of the conveyor belt 5. Part 2 is poured into the material box 23. Because the bottom plate 23a gradually slopes downward from the second side plate 23c to the first side plate 23b, part 2 moves above the pusher plate 24 under the action of gravity. The power unit 6 drives the pusher plate 24 to move upward, which in turn moves part 2 above the pusher plate 24 upward. Since the upper surfaces of the pusher plate 24 and the first side plate 23b are both inclined surfaces that gradually slope downward from the second side plate 23c to the conveyor belt 5, part 2 above the pusher plate 24 flows to the conveyor belt 5 through the upper surface of the first side plate 23b. The structural design is ingenious.
[0051] To reduce the displacement of the receiving plate and minimize the space occupied by the feeding device, a receiving plate 25 is connected between the third side plate 23d and the fourth side plate 23e. The upper surface of the receiving plate 25 is higher than the upper surface of the bottom plate 23a and lower than the upper surface of the first side plate 23b. Pushing plates 24 are provided between the receiving plate 25 and the first side plate 23b, and between the receiving plate 25 and the bottom plate 23a. The upper surface of the pushing plate 24 between the receiving plate 25 and the first side plate 23b is higher than the upper surface of the pushing plate 24 between the receiving plate 25 and the bottom plate 23a. The upper surface of the receiving plate 25 is an inclined surface that gradually slopes downward from the side plate 23c to the conveyor belt 5. Part 2 on base plate 23a first enters above the push plate 24 between receiving plate 25 and base plate 23a, then enters above receiving plate 25, then enters above the push plate 24 between receiving plate 25 and side plate 23b, and finally enters above side plate 23b.
[0052] To further reduce the displacement of the receiving plates and minimize the space occupied by the feeding device, two or more receiving plates 25 are spaced apart, and their height increases sequentially from the side plate 23c to the side plate 23b. A pusher plate 24 is provided between adjacent receiving plates 25, and the height of the pusher plate 24 increases sequentially from the side plate 23c to the side plate 23b. In this embodiment, two receiving plates 25 are spaced apart, and a total of three receiving plates 25 are provided.
[0053] In order for the pusher plates 24 to move synchronously, the lower ends of each pusher plate 24 are connected by a connecting plate 31.
[0054] Furthermore, the power unit six is a linear motor, a linear module, a hydraulic cylinder, or a pneumatic cylinder. In this embodiment, the power unit six is a pneumatic cylinder mounted on the bed 1 with a piston rod that moves linearly, and the piston rod of the pneumatic cylinder is connected to one of the pusher plates 24.
[0055] Example 2: See Figure 7 :
[0056] This embodiment has a basically the same structure as Embodiment 1 above, the main difference being: Figure 7 As shown, it also includes a second sensor 26 for detecting whether part 2 exists inside the push plate 9, and the second sensor 26 is electrically connected to the controller.
[0057] In this embodiment, sensor 26 is mounted on the mounting base 28 and located outside the push plate 9. When the end of part 2 does not extend into the U-shaped opening 13, sensor 4 cannot detect the presence of part 2, but sensor 26 can detect its presence. When part 2 is short, i.e., the machined end of part 2 extends into the U-shaped opening 13 and the other end of part 2 does not extend out of the push plate 9, sensor 4 detects the presence of part 2, but sensor 26 cannot detect it. When part 2 is long, i.e., the machined end of part 2 extends into the U-shaped opening 13 and the other end of part 2 extends out of the push plate 9, both sensor 4 and sensor 26 will detect the presence of part 2.
[0058] Therefore, when sensor 4 and / or sensor 26 detect the presence of part 2, it indicates that there is material on push plate 9, and power unit 2 drives push plate 9 to move part 2 to turntable 7. When neither sensor 4 nor sensor 26 detects the presence of part 2, it indicates that there is a shortage of material on push plate 9.
[0059] Furthermore, the second sensor 26 is a proximity switch or a contact displacement sensor. The proximity switch is a photoelectric proximity switch, an eddy current proximity switch, or a magnetic switch. In this embodiment, the material of the part 2 contains iron, and the first sensor 4 is a magnetic switch.
[0060] Example 3: See Figure 7 :
[0061] This embodiment is basically the same as the structure of the first embodiment above. The main difference is that the power device four is a cylinder with a built-in magnetic switch. Both the magnetic switch and the cylinder are electrically connected to the controller. The piston rod of the cylinder is provided with a magnetic ring. The magnetic switch determines the extension length of the piston rod by sensing the position of the magnetic ring. When the push rod 18 pushes the part 2 to the material trough 16, the extension length of the piston rod is short; when there is no part 2 at the front end of the push rod 18, the extension length of the piston rod is long.
[0062] When the power unit 2 pushes the material plate 9 at a certain interval, there is a shortage of material, which results in no part 2 entering the tooling of the spindle 3, thus causing the spindle 3 to run idle.
[0063] In this embodiment, the extension length of the piston rod of the power unit four is used to determine whether the push rod 18 pushes the part 2 into the material groove 16, which can effectively ensure that the main shaft 3 will not spin idly.
[0064] The above embodiments are only one of the preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes made in accordance with the shape, structure and principle of this utility model should be covered within the protection scope of this utility model.
Claims
1. An automatic CNC lathe, comprising a bed (1), wherein the bed (1) is provided with a spindle (3) for rotating a part (2) and a cutting tool for machining the part (2), characterized in that: It also includes a controller, a detection device for detecting whether the end of the part (2) is machined, a turning device for turning the part (2), and a conveying device for conveying the part (2) from the turning device to the spindle (3), wherein the detection device, the turning device and the conveying device are electrically connected to the controller.
2. The automatic CNC lathe according to claim 1, characterized in that: The detection device includes a sensor (4), a detection fixture, and a conveyor belt (5) for conveying the part (2) to the detection fixture. The conveyor belt (5) is driven by a drive device. The detection fixture is provided with a detection area (6) for the processed end of the part (2) to extend into. The sensor (4) detects whether the part (2) is in the detection area (6). The sensor (4) and the drive device are electrically connected to the controller.
3. An automatic CNC lathe according to claim 2, characterized in that: The turning device is a turntable (7) set on the side of the conveyor belt (5). The turntable (7) is driven to rotate by a power device one. The detection fixture is driven by a power device two to move between the conveyor belt (5) and the turntable (7). The power device one and the power device two are electrically connected to the controller respectively.
4. An automatic CNC lathe according to claim 3, characterized in that: The turntable (7) has recesses (8) for placing parts (2) on its upper and lower sides. The inspection fixture includes a push plate (9). The push plate (9) is driven by a power device to move along the conveying direction of the vertical conveyor belt (5). The push plate (9) is located above the conveyor belt (5) and the turntable (7). The push plate (9) has an opening groove (10) with an opening at the lower end. The side of the opening groove (10) has a notch (11) for the parts (2) to enter. The opening groove (10) has a limiting block (12). The limiting block (12) has a U-shaped opening (13) with the opening facing downward. The width of the U-shaped opening (13) is greater than the maximum width of the processed end of the parts (2) and less than the maximum width of the unprocessed end of the parts (2). The inspection area (6) is formed inside the limiting block (12) or on the side of the limiting block (12) away from the notch (11).
5. An automatic CNC lathe according to claim 4, characterized in that: It also includes a second sensor (26) for detecting whether part (2) exists inside the push plate (9), and the second sensor (26) is electrically connected to the controller.
6. An automatic CNC lathe according to claim 4, characterized in that: The conveying device includes a mounting plate (14) located above the main shaft (3) and a receiving block (15) located near the cutting tool end of the main shaft (3). The receiving block (15) is driven vertically by a power device three and has a material groove (16) on it. The turntable (7) is set inside the mounting plate (14). The mounting plate (14) has a through groove (17). A push rod (18) is slidably installed in the groove (17) to push the part (2) in the groove (8) towards the material groove (16). The push rod (18) is driven to move by a power device four. The material groove (16) has a push rod (2) to push the part (2) towards the main shaft (3). The push rod (2) is driven to move by a power device five. The power devices three, four and five are electrically connected to the controller.
7. An automatic CNC lathe according to claim 6, characterized in that: The bed (1) is covered with a protective cover (19), and the protective cover (19) is provided with a partition (20). The partition (20) divides the inner cavity of the protective cover (19) into a feeding area and a processing area. The detection device and the turning device are located in the feeding area, and the cutting tool is located in the processing area. The partition (20) is provided with a horizontal fixing plate (21), and the horizontal fixing plate (21) is provided with a vertical fixing plate (22). The mounting plate (14) is mounted on the horizontal fixing plate (21), the conveyor belt (5) is mounted on the mounting plate (14), and the receiving block (15) is mounted on the vertical fixing plate (22).
8. An automatic CNC lathe according to claim 2, characterized in that: The conveyor belt (5) is provided with a feeding device on its side. The feeding device includes a material box (23) set on the side of the conveyor belt (5) and a pusher plate (24) driven vertically by a power device. The material box (23) includes a bottom plate (23a), a side plate one (23b), a side plate two (23c), a side plate three (23d), and a side plate four (23e). The side plate one (23b) and the side plate two (23c) are arranged opposite to each other, and the side plate one (23b) is set close to the conveyor belt (5). The side plate three (23d) The pusher plate (24) is positioned opposite to the side plate four (23e), and the side plate three (23d) and the side plate four (23e) are positioned between the side plate one (23b) and the side plate two (23c). The pusher plate (24) is positioned between the bottom plate (23a) and the side plate one (23b). The bottom plate (23a) gradually slopes downward from the side plate two (23c) to the side plate one (23b). The upper surfaces of the pusher plate (24) and the side plate one (23b) are both inclined surfaces that gradually slope downward from the side plate two (23c) towards the side of the conveyor belt (5).
9. An automatic CNC lathe according to claim 8, characterized in that: A receiving plate (25) is connected between the third side plate (23d) and the fourth side plate (23e). The upper surface of the receiving plate (25) is higher than the upper surface of the bottom plate (23a) and lower than the upper surface of the first side plate (23b). The receiving plate (24) is provided between the receiving plate (25) and the first side plate (23b) and between the receiving plate (25) and the bottom plate (23a). The upper surface of the pusher plate (24) between the receiving plate (25) and the first side plate (23b) is higher than the upper surface of the pusher plate (24) between the receiving plate (25) and the bottom plate (23a). The upper surface of the receiving plate (25) is an inclined surface that gradually slopes downward from the second side plate (23c) to the conveyor belt (5).
10. An automatic CNC lathe according to claim 9, characterized in that: The receiving plates (25) are arranged in two or more intervals, and their height increases sequentially from the side of side plate two (23c) to the side of side plate one (23b). The pusher plate (24) is provided between two adjacent receiving plates (25), and the height of the pusher plate (24) increases sequentially from the side of side plate two (23c) to the side of side plate one (23b).