An automatic loading and unloading device for a turning-milling compound CNC lathe robot

Abstract

The present invention belongs to the technical field of CNC lathes, especially a robot automatic loading and unloading device for a turning and milling composite CNC lathe. The following scheme is now proposed, which includes a base and a lathe. The lathe is fixedly connected to the top of the base. A track frame is fixedly connected to the top of the base. One side of the track frame is fixedly connected with a track, and the track is in an arc shape. An electric slide rail is slidably connected to the top of the track. In the present invention, the weighing shelf realizes the real-time monitoring of the processing process. Cooperating with the robot greatly improves the overall automation degree of the device, improves the efficiency of loading and unloading, and realizes a faster processing flow. The first motor will only start when the robot is at the position farthest from the lathe, avoiding collisions between the robot and the lathe, and avoiding safety accidents in production. The coordinated design of multiple moving parts makes the entire production process coherent and smooth, reduces the waiting time between processes, and further improves the production rhythm.

Description

Technical Field

[0001] The present invention relates to the technical field of numerically controlled lathes, and particularly to a robot automatic loading and unloading device for a turning-milling compound numerically controlled lathe. Background Art

[0002] In modern manufacturing, the turning-milling compound processing technology is widely used due to its high precision and high efficiency. The existing loading and unloading robots of turning-milling numerically controlled lathes cannot accurately judge whether all tasks have been completed, which easily leads to inaccurate monitoring of the processing process, affects production efficiency, and the traditional structure lacks an automated connection design during the device reset process, affecting the production coherence and automation level.

[0003] After retrieval, a Chinese patent application with the application publication number CN117733626A discloses a robot automatic loading and unloading device for a turning-milling compound numerically controlled lathe, including an adjustment component. The manipulator can clamp the workpiece to be processed and insert the workpiece into the fixed chuck of the turning-milling compound numerically controlled lathe, so as to realize the automatic loading of the workpiece. By setting the adjustment component, the unloading component and the discharging component, the workpiece can be unloaded.

[0004] The above device has obvious limitations in the process connection and automation level of loading and unloading, and it is necessary to improve and innovate the existing robot automatic loading and unloading device for a turning-milling compound numerically controlled lathe. Summary of the Invention

[0005] Based on the technical problem of insufficient process connection and automation level in loading and unloading, the present invention proposes a robot automatic loading and unloading device for a turning-milling compound numerically controlled lathe.

[0006] The robot automatic loading and unloading device for a turning-milling compound numerically controlled lathe proposed by the present invention includes a base and a lathe. The lathe is fixedly connected to the top of the base. A track frame is fixedly connected to the top of the base. A track is fixedly connected to one side of the track frame. The track is in an arc shape. An electric slide rail is slidably connected to the top of the track. Two connecting frames are fixed to the end of the electric slide rail away from the lathe. The two connecting frames are fixedly connected to the same transmission rack at the end away from the electric slide rail. The transmission rack is in an arc shape that coincides with the center of the track. A gear disk meshing with the transmission rack is rotatably connected to the top of the base. A motor frame is fixedly connected to the top of the base. A first motor is fixedly connected to the inside of the motor frame. The gear disk is drivingly connected to the output end of the first motor. A travel switch is fixedly connected to the end of the electric slide rail away from the lathe. A sliding bracket is slidably connected to the top of the electric slide rail. An installation platform is fixedly connected to the top of the sliding bracket. A robot is fixedly connected to the top of the installation platform. Two weighing shelves are arranged on one side of the base close to the electric slide rail.

[0007] Preferably, two symmetrically arranged electric doors are slidably connected to one side of the lathe near the electric slide rail. A turning and milling tooling is arranged inside the lathe, and a touch screen is arranged on the outer wall of the lathe near the electric slide rail.

[0008] Preferably, two ball grooves are symmetrically opened at the bottom of the electric slide rail. Ball bearings that can roll freely are filled in both of the two ball grooves, and the top surface of the base and the top inner wall of the ball groove are respectively in contact with both sides of the ball bearings.

[0009] Preferably, a fixing rod is fixedly connected to the top of the base, a baffle is fixedly connected to the top of the fixing rod, two mounting grooves are symmetrically opened on one side of the baffle near the electric slide rail, and pressure sensors are fixedly connected to the interiors of both of the two mounting grooves.

[0010] Preferably, two sliding sleeves are fixedly connected to the top of the base, the same synchronous connecting rod is fixedly connected between the two sliding sleeves, sliding bars are slidably connected to the interiors of both of the two sliding sleeves, a collision plate is fixedly connected to one end of both of the two sliding bars near the electric slide rail, a pressing plate is fixedly connected to one end of both of the two sliding bars near the baffle, two contact points are fixedly connected to one side of the pressing plate near the baffle, and the two contact points are respectively adapted to the two pressure sensors.

[0011] Preferably, the same spring is fixedly connected between the synchronous connecting rod and the pressing plate.

[0012] Preferably, a second motor is fixedly connected to the interior of the motor frame. The output end of the second motor is drivingly connected to a bidirectional screw rod. Clamping frames are threadedly connected to both ends of the bidirectional screw rod. The two clamping frames are symmetrically arranged, and both of the two clamping frames are slidably connected to the motor frame in the vertical direction. Cleaning brushes are fixedly connected to one side of both of the two clamping frames close to each other, and the two cleaning brushes are respectively located on both sides of the transmission rack.

[0013] Preferably, an oil groove is fixedly connected to the top of the clamping frame located above. Uniformly distributed oil holes are opened at the bottom of the oil groove, and the bottoms of the oil holes communicate with the tops of the cleaning brushes.

[0014] Preferably, two parallel guide rods are fixedly connected to one side of the base close to the weighing shelf. Slide seats are slidably connected to the rod bodies of both of the two guide rods. The two weighing shelves are respectively fixedly connected to the tops of the two slide seats. Plug pins are inserted into the ends of both of the two guide rods far away from the base.

[0015] Preferably, roller grooves are symmetrically opened at the bottoms of both of the two slide seats. Rollers are rotatably connected to the inner walls at both ends of the roller grooves.

[0016] Compared with the prior art, the present invention provides a turning and milling compound CNC lathe robot automatic loading and unloading device, which has the following beneficial effects:

[0017] 1. The automatic loading and unloading device of the robot for the turning-milling compound CNC lathe realizes real-time monitoring of the processing process by setting up a weighing shelf, a robot, an electric slide rail, a travel switch, a first motor and a transmission rack. Cooperating with the robot greatly improves the overall automation degree of the device, improves the efficiency of loading and unloading, realizes faster processing flow. The first motor will only start when the robot is in the position farthest from the lathe, avoiding collisions between the robot and the lathe, and avoiding safety accidents in production. The coordinated design of multiple moving parts makes the entire production process coherent and smooth, reduces the waiting time between processes, and further improves the production rhythm.

[0018] 2. The automatic loading and unloading device of the robot for the turning-milling compound CNC lathe, by setting up an impact plate, a pressing plate, a contact point and a pressure sensor. Before starting the next processing program and when the electric slide rail needs to be reset, stack the materials on the weighing shelf for placing the materials to be processed. After the weighing shelf detects a change in weight, it will control the first motor to reverse through an electrical signal, and then drive the electric slide rail back to the loading and unloading station through a gear disk and a transmission rack. When the electric slide rail reaches the specified position, one side of the electric slide rail contacts the impact plate. After the impact plate is stressed, it moves towards the baffle together with the sliding bar and the pressing plate, so that the pressure sensor receives the pressure from the contact point, and controls the first motor to stop driving through the electrical signal generated in this process, realizing the automatic connection between two processing procedures.

[0019] 3. The automatic loading and unloading device of the robot for the turning-milling compound CNC lathe, by setting up a second motor, a bidirectional screw, a clamping frame, a cleaning brush and an oil groove. The second motor can be driven to rotate the bidirectional screw, and then drive the two clamping frames to approach the transmission rack at the same time, so that the two cleaning brushes respectively contact the upper and lower sides of the transmission rack. When the first motor drives the transmission rack, the transmission rack moves relative to the cleaning brush, and automatic cleaning of the transmission rack can be realized. When lubrication and maintenance of the transmission rack are required, first perform preliminary cleaning on the transmission rack through the above steps, and then pour lubricating oil into the oil groove. The lubricating oil is supplied to the cleaning brush through the oil hole to fully soak the bristles. At this time, drive the transmission rack again through the first motor, so that the transmission rack moves relative to the cleaning brush, and then the lubricating oil on the bristles is evenly attached to the surface of the transmission rack, forming a stable lubricating oil film, thereby providing lasting lubrication protection for the transmission rack, reducing wear and extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of an automatic loading and unloading device of the robot for the turning-milling compound CNC lathe proposed by the present invention;

[0021] Figure 2Schematic top view structure diagram of a robot automatic loading and unloading device for a turning-milling compound CNC lathe proposed by the present invention;

[0022] Figure 3 Schematic partial structure diagram of a robot automatic loading and unloading device for a turning-milling compound CNC lathe proposed by the present invention;

[0023] Figure 4 Schematic structure diagram of an impact plate, a pressing plate and a baffle of a robot automatic loading and unloading device for a turning-milling compound CNC lathe proposed by the present invention;

[0024] Figure 5 Schematic bottom structure diagram of an electric slide rail of a robot automatic loading and unloading device for a turning-milling compound CNC lathe proposed by the present invention;

[0025] Figure 6 Schematic left view structure diagram of a robot automatic loading and unloading device for a turning-milling compound CNC lathe proposed by the present invention;

[0026] Figure 7 Schematic structure diagram of a motor bracket, a second motor and a clamping bracket of a robot automatic loading and unloading device for a turning-milling compound CNC lathe proposed by the present invention;

[0027] Figure 8 Schematic structure diagram of another perspective of a robot automatic loading and unloading device for a turning-milling compound CNC lathe proposed by the present invention;

[0028] Figure 9 is Figure 8 Enlarged schematic diagram at position A in

[0029] In the figure: 1, base; 2, lathe; 3, electric door; 4, touch screen; 5, turning-milling tooling; 6, track frame; 7, track; 8, electric slide rail; 9, travel switch; 10, connecting frame; 11, sliding bracket; 12, installation platform; 13, robot; 14, sliding seat; 15, weighing shelf; 16, transmission rack; 17, motor bracket; 18, first motor; 19, second motor; 20, clamping bracket; 21, gear disk; 22, fixed rod; 23, baffle; 24, sliding bar; 25, sliding sleeve; 26, synchronous connecting rod; 27, impact plate; 28, spring; 29, contact; 30, installation groove; 31, pressure sensor; 32, pressing plate; 33, ball groove; 34, ball; 35, bidirectional screw; 36, oil groove; 37, cleaning brush; 38, oil hole; 39, roller; 40, roller groove; 41, bolt; 42, guide rod. Detailed implementation manners

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] Reference Figures 1-9 A turning and milling compound CNC lathe robot automatic loading and unloading device comprises a base 1 and a lathe 2, the lathe 2 is fixedly connected to the top of the base 1, the top of the base 1 is fixedly connected to a track frame 6, one side of the track frame 6 is fixedly connected to a track 7, the track of the track 7 is an arc shape, the top of the track 7 is slidably connected to an electric slide rail 8, the electric slide rail 8 can slide along the track of the track 7 under the drive of an external force, during the sliding process, the electric slide rail 8 always keeps in contact with the track 7, and the movement direction is always along the tangent direction of the track 7, two connecting frames 10 are fixed to the end of the electric slide rail 8 away from the lathe 2, and the ends of the two connecting frames 10 away from the electric slide rail 8 are fixedly connected to the same transmission rack 16, the transmission rack 16 is arranged to be in an arc shape coinciding with the center of the trajectory of the track 7, the top of the base 1 is rotatably connected with a gear plate 21 meshing with the transmission rack 16, the top of the base 1 is fixedly connected with a motor frame 17, the interior of the motor frame 17 is fixedly connected with a first motor 18, the gear plate 21 is transmission-connected to the output end of the first motor 18, the end of the electric slide rail 8 away from the lathe 2 is fixedly connected with a travel switch 9, the top of the electric slide rail 8 is slidably connected with a sliding bracket 11, the top of the sliding bracket 11 is fixedly connected with a mounting platform 12, the top of the mounting platform 12 is fixedly connected with a robot 13, and two weighing shelves 15 are arranged on the side of the base 1 close to the electric slide rail 8.

[0032] In the present invention, two symmetrically arranged electric doors 3 are slidably connected to one side of the lathe 2 close to the electric slide rail 8, a turning and milling tool 5 is arranged inside the lathe 2, and a touch screen 4 is arranged on the outer wall of the lathe 2 close to the electric slide rail. When the robot 13 loads and unloads materials, the electric door 3 slides open to facilitate the robot 13 to enter and exit the lathe 2 for operation. The turning and milling tool 5 is used to fix the material, and the touch screen 4 is used to control the lathe 2.

[0033] In the present invention, two ball grooves 33 are symmetrically opened at the bottom of the electric slide rail 8, and the interiors of the two ball grooves 33 are filled with balls 34 that can roll freely. The top surface of the base 1 and the top inner wall of the ball groove 33 are respectively in contact with the two sides of the ball 34. The ball 34 replaces the direct contact between the electric slide rail 8 and the base 1, thereby reducing the resistance of the electric slide rail 8 during movement and reducing the loss of the device.

[0034] In the present invention, a fixing rod 22 is fixedly connected to the top of the base 1, a baffle 23 is fixedly connected to the top of the fixing rod 22, two mounting grooves 30 are symmetrically opened on one side of the baffle 23 close to the electric slide rail 8, and pressure sensors 31 are fixedly connected inside the two mounting grooves 30.

[0035] In the present invention, two sliding sleeves 25 are fixedly connected to the top of the base 1, and the same synchronous connecting rod 26 is fixedly connected between the two sliding sleeves 25. A sliding bar 24 is slidably connected to the inside of each of the two sliding sleeves 25. One end of the two sliding bars 24 close to the electric slide rail 8 is fixedly connected to the same impact plate 27, and one end of the two sliding bars 24 close to the baffle 23 is fixedly connected to the same pressing plate 32. Two contact points 29 are fixedly connected to the side of the pressing plate 32 close to the baffle 23. The two contact points 29 are respectively adapted to the two pressure sensors 31. Before starting the next processing procedure and when it is necessary to reset the electric slide rail 8, the materials are stacked on the weighing shelf 15 for placing the materials to be processed. After the weighing shelf 15 detects a change in weight, it will control the first motor 18 to reverse through an electric signal, and then drive the electric slide rail 8 to return to the loading and unloading station through the gear disk 21 and the transmission rack 16. When the electric slide rail 8 reaches the designated position, one side of the electric slide rail 8 contacts the impact plate 27. After the impact plate 27 is stressed, it moves towards the baffle 23 together with the sliding bar 24 and the pressing plate 32, so that the pressure sensor 31 receives the pressure from the contact point 29. The first motor 18 is controlled to stop driving through the electric signal generated in this process, realizing the automatic connection between two processing procedures.

[0036] In the present invention, the same spring 28 is fixedly connected between the synchronous connecting rod 26 and the pressing plate 32. After the electric slide rail 8 pushes the impact plate 27, the spring 28 is stressed and stretched. When the electric slide rail 8 moves away from the impact plate 27 again, the spring 28 can drive the impact plate 27 and the contact point 29 to reset.

[0037] In the present invention, a second motor 19 is fixedly connected to the inside of the motor frame 17. The output end of the second motor 19 is drivingly connected to a bidirectional screw 35. Both ends of the bidirectional screw 35 are threadedly connected to clamping frames 20. The two clamping frames 20 are symmetrically arranged, and both clamping frames 20 are slidably connected to the motor frame 17 in the vertical direction. Cleaning brushes 37 are fixedly connected to the sides of the two clamping frames 20 close to each other. The two cleaning brushes 37 are respectively located on both sides of the transmission rack 16. The second motor 19 can be driven to rotate the bidirectional screw 35, thereby driving the two clamping frames 20 to approach the transmission rack 16 at the same time, so that the two cleaning brushes 37 respectively contact the upper and lower sides of the transmission rack 16. When the first motor 18 drives the transmission rack 16, the transmission rack 16 moves relative to the cleaning brush 37, and the automatic cleaning of the transmission rack 16 can be realized.

[0038] In the present invention, an oil tank 36 is fixedly connected to the top of the clamping bracket 20 located above. The bottom of the oil tank 36 is provided with evenly distributed oil holes 38, and the bottom of the oil holes 38 communicates with the top of the cleaning brush 37. When lubrication and maintenance of the transmission rack 16 are required, first, the preliminary cleaning of the transmission rack 16 is completed, and then lubricating oil is poured into the oil tank 36. The lubricating oil is supplied to the cleaning brush 37 through the oil holes 38 to fully soak the bristles. At this time, the transmission rack 16 is driven by the first motor 18 again to make the transmission rack 16 move relative to the cleaning brush 37, so that the lubricating oil on the bristles is evenly attached to the surface of the transmission rack 16, forming a stable lubricating oil film, thereby providing lasting lubrication protection for the transmission rack 16, reducing wear and extending the service life.

[0039] In the present invention, two parallel guide rods 42 are fixedly connected to one side of the base 1 close to the weighing shelf 15. The rod bodies of the two guide rods 42 are both slidably connected with sliding seats 14. The two weighing shelves 15 are respectively fixedly connected to the tops of the two sliding seats 14. Plug pins 41 are inserted into the ends of the two guide rods 42 away from the base 1. The weighing shelf 15 is fixed on the sliding seat 14, and the sliding seat 14 is positioned by the guide rods 42. After the plug pins 41 are inserted into the guide rods 42, the position of the sliding seat 14 can be locked.

[0040] In the present invention, roller grooves 40 are symmetrically provided at the bottoms of the two sliding seats 14. Roller shafts 39 are rotatably connected to the inner walls at both ends of the roller grooves 40. After the plug pins 41 are pulled out, the sliding seats 14 can be moved along the guide rods 42, and then the weighing shelf 15 can be disassembled from one side of the base 1. The setting of the roller shafts 39 makes the movement process of the sliding seats 14 more labor-saving and facilitates the maintenance and debugging of the weighing shelf 15.

[0041] During use, the two weighing shelves 15 can detect the weight of the materials stacked on their tops, and are respectively used for stacking the materials to be processed and the processed materials. The robot 13 is fixedly installed on the installation platform 12. After reaching the designated position under the drive of the electric slide rail 8, it performs automatic loading and unloading operations, that is, picks up parts from the weighing shelf 15 where the materials to be processed are placed, and places the processed materials on the other weighing shelf 15. When the weighing shelf 15 where the materials to be processed are placed detects that there is no material on the top, and the other weighing shelf 15 detects that the materials are full, it means that the turning and milling processing of all workpieces has been completed. At this time, the electric slide rail 8 drives the sliding bracket 11 to slide away from the lathe 2 until the sliding bracket 11 triggers the travel switch 9. At this time, the robot 13, the sliding bracket 11 and the installation platform 12 are located at the position on the electric slide rail 8 that is farthest from the lathe. After the first motor 18 detects the electrical signal of the travel switch 9, it drives the gear disk 21 to rotate, drives the transmission rack 16, and drives the electric slide rail 8 to move along the track 7 of the track, so that the electric slide rail 8 together with the sliding bracket 11, the installation platform 12 and the robot 13 on its top move to one side of the lathe, away from the loading and unloading station, facilitating the staff to perform other operations on the lathe.

[0042] As described above, it is only the preferred specific implementation manner 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 of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. An automatic loading and unloading device for a turning and milling composite CNC lathe robot, comprising a base (1) and a lathe (2), wherein the lathe (2) is fixedly connected to the top of the base (1), and is characterized in that: The top of the base (1) is fixedly connected to a track frame (6), one side of the track frame (6) is fixedly connected to a track (7), the track of the track (7) is in the shape of an arc, the top of the track (7) is slidably connected to an electric slide rail (8), two connecting frames (10) are fixed to one end of the electric slide rail (8) away from the lathe (2), the two connecting frames (10) are fixedly connected to the same transmission rack (16) at one end away from the electric slide rail (8), the transmission rack (16) is arranged in the shape of an arc that coincides with the center of the track of the track (7), and the top of the base (1) is rotatably connected to a gear meshing with the transmission rack. The gear plate (21) of the lathe (16) is fixedly connected to the top of the base (1) with a motor frame (17), the inside of the motor frame (17) is fixedly connected to a first motor (18), the gear plate (21) is drivingly connected to the output end of the first motor (18), the end of the electric slide rail (8) away from the lathe (2) is fixedly connected to a travel switch (9), the top of the electric slide rail (8) is slidably connected to a sliding bracket (11), the top of the sliding bracket (11) is fixedly connected to a mounting platform (12), the top of the mounting platform (12) is fixedly connected to a robot (13), the base (1) Two weighing shelves (15) are arranged on a side close to the electric slide rail (8); a fixing rod (22) is fixedly connected to the top of the base (1); a baffle (23) is fixedly connected to the top of the fixing rod (22); two mounting grooves (30) are symmetrically provided on the side close to the electric slide rail (8); pressure sensors (31) are fixedly connected inside the two mounting grooves (30); two sliding sleeves (25) are fixedly connected to the top of the base (1); a same synchronous connecting rod (26) is fixedly connected between the two sliding sleeves (25); and the two The interior of the sliding sleeve (25) is slidably connected to a sliding bar (24); one end of the two sliding bars (24) close to the electric slide rail (8) is fixedly connected to a common impact plate (27); one end of the two sliding bars (24) close to the baffle (23) is fixedly connected to a common pressing plate (32); one side of the pressing plate (32) close to the baffle (23) is fixedly connected to two contacts (29); the two contacts (29) are respectively adapted to two pressure sensors (31); and a common spring (28) is fixedly connected between the synchronous connecting rod (26) and the pressing plate (32).

2. The automatic loading and unloading device of a turning-milling compound CNC lathe robot according to claim 1 is characterized in that: The lathe (2) is slidably connected to one side of the lathe (2) close to the electric slide rail (8) with two symmetrically arranged electric doors (3), a turning and milling tool (5) is arranged inside the lathe (2), and a touch screen (4) is arranged on the outer wall of the lathe (2) close to the electric slide rail.

3. The automatic loading and unloading device of a turning-milling compound CNC lathe robot according to claim 1 is characterized in that: Two ball grooves (33) are symmetrically formed at the bottom of the electric slide rail (8), and the interiors of the two ball grooves (33) are filled with balls (34) that can roll freely, and the top surface of the base (1) and the top inner walls of the ball grooves (33) are in contact with two sides of the balls (34) respectively.

4. The automatic loading and unloading device for a turning-milling compound CNC lathe robot according to claim 1 is characterized in that: A second motor (19) is fixedly connected inside the motor frame (17), and a bidirectional screw (35) is drivingly connected to the output end of the second motor (19). Both ends of the bidirectional screw (35) are threadedly connected to a clamping frame (20). The two clamping frames (20) are symmetrically arranged, and the two clamping frames (20) are slidably connected to the motor frame (17) in the vertical direction. Cleaning brushes (37) are fixedly connected to the adjacent sides of the two clamping frames (20), and the two cleaning brushes (37) are respectively located on both sides of the transmission rack (16).

5. The automatic loading and unloading device of a turning-milling compound CNC lathe robot according to claim 4 is characterized in that: The top of the upper clamping frame (20) is fixedly connected to an oil groove (36), the bottom of the oil groove (36) is provided with evenly distributed oil holes (38), and the bottom of the oil holes (38) is connected to the top of the cleaning brush (37).

6. The automatic loading and unloading device for a turning-milling compound CNC lathe robot according to claim 1 is characterized in that: Two parallel guide rods (42) are fixedly connected to one side of the base (1) close to the weighing shelf (15); the rod bodies of the two guide rods (42) are slidably connected to the sliding seats (14); the two weighing shelves (15) are respectively fixedly connected to the tops of the two sliding seats (14); and the ends of the two guide rods (42) away from the base (1) are plugged with latches (41).

7. The automatic loading and unloading device for a turning-milling compound CNC lathe robot according to claim 6 is characterized in that: The bottoms of the two sliding seats (14) are symmetrically provided with roller grooves (40), and the inner walls at both ends of the roller grooves (40) are rotatably connected to rollers (39).

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