A fully automatic loading mechanism for a numerically controlled lathe

Abstract

The present invention relates to a fully automatic loading mechanism for a numerically controlled lathe, belonging to the technical field of numerically controlled lathes, and includes a numerically controlled lathe, a chuck, a support frame, a robotic arm, a mounting frame, a conveying mechanism, a pushing mechanism, a rotating frame, an electric blanking gripper, an electric loading gripper and a positioning switch; the chuck is arranged on the main shaft of the numerically controlled lathe; the support frame and the mounting frame are both arranged on the numerically controlled lathe; the robotic arm is arranged on the support frame; the conveying mechanism is arranged on the mounting frame; the rotating frame is rotatably arranged on the robotic arm; the electric blanking gripper and the electric loading gripper are respectively arranged at both ends of the rotating frame; the positioning switch is slidably arranged on the electric loading gripper; an adjusting mechanism for adjusting the position of the positioning switch is arranged on the electric loading gripper; the pushing mechanism is arranged on the mounting frame, and the output end of the pushing mechanism is slidably connected to the mounting frame; the pushing mechanism is communicatively connected to the positioning switch. The present invention can achieve automatic loading and automatic unloading, reducing the labor intensity of manpower.

Description

Technical Field

[0001] The present invention relates to the technical field of numerically controlled lathes, and particularly to a full-automatic loading mechanism for a numerically controlled lathe. Background Art

[0002] Numerically controlled lathes and turning centers are high-precision and high-efficiency automatic machine tools. Equipped with multi-station turrets or power turrets, the machine tools have a wide range of processing process capabilities, can process complex workpieces such as straight cylinders, inclined cylinders, arcs, various threads, grooves, and worms, have various compensation functions such as linear interpolation and circular interpolation, and have played a good economic effect in the mass production of complex parts.

[0003] Although the existing numerically controlled lathe machines can achieve automatic processing of machining blanks, the loading and unloading of numerically controlled lathe machines usually still require manual operation, which has a high dependence on operators, high technical requirements, is prone to work injury accidents, and has low automation and low processing efficiency. Summary of the Invention

[0004] The purpose of the present invention is to address the problems in the background art and propose a full-automatic loading mechanism for a numerically controlled lathe that can achieve automatic loading and unloading and reduce the labor intensity of manpower.

[0005] The technical solution of the present invention: A full-automatic loading mechanism for a numerically controlled lathe, including a numerically controlled lathe, a chuck, a support frame, a robotic arm, a mounting frame, a conveying mechanism, a pushing mechanism, a rotating frame, an electric unloading gripper, an electric loading gripper, and a positioning switch;

[0006] The chuck is arranged on the main shaft of the numerically controlled lathe; both the support frame and the mounting frame are arranged on the numerically controlled lathe; the robotic arm is arranged on the support frame; the conveying mechanism is arranged on the mounting frame; the rotating frame is rotatably arranged on the robotic arm; the electric unloading gripper and the electric loading gripper are respectively arranged at both ends of the rotating frame; the positioning switch is slidably arranged on the electric loading gripper; an adjusting mechanism for adjusting the position of the positioning switch is arranged on the electric loading gripper; the pushing mechanism is arranged on the mounting frame, and the output end of the pushing mechanism is slidably connected to the mounting frame; the pushing mechanism is communicatively connected to the positioning switch.

[0007] Preferably, the conveying mechanism includes a first motor, a conveying wheel, a conveyor belt, and a conveying roller; the first motor is arranged on the mounting frame; there are two conveying wheels and two conveyor belts, and both conveying wheels are rotatably arranged on the mounting frame; the output end of the first motor is connected to any one of the conveying wheels; the conveyor belt is drivingly connected to the conveying wheel; there are multiple conveying rollers, and both ends of the multiple conveying rollers are respectively rotatably arranged on the two conveyor belts and are evenly distributed.

[0008] Preferably, a trigger switch and a baffle are provided on the mounting bracket; an opening is provided on the baffle; the output end of the pushing mechanism is located at the opening; the trigger switch is located at the opening; the trigger switch is controllably connected to the first motor.

[0009] Preferably, the pushing mechanism includes a support plate, a telescopic cylinder, and a push block; the support plate is provided on the mounting bracket; the telescopic cylinder is provided on the support plate; the output end of the telescopic cylinder is connected to the push block; the push block is slidably provided at the opening; the positioning switch is controllably connected to the telescopic cylinder.

[0010] Preferably, the adjusting mechanism includes a second motor, a lead screw, a sliding bracket, and a guide rail; the second motor and the guide rail are both provided on the electric loading gripper, and the output end of the second motor is connected to the lead screw; the sliding bracket is slidably provided on the electric loading gripper and the guide rail; one end of the sliding bracket is threadedly connected to the lead screw; the positioning switch is provided at the other end of the sliding bracket.

[0011] Preferably, a blanking box is provided at the lower end of the CNC lathe.

[0012] The present invention also provides a method for using a full-automatic loading mechanism for a CNC lathe, including the following steps:

[0013] S1. Place the material on the conveying mechanism;

[0014] S2. The conveying mechanism conveys the material to the pushing mechanism and stops conveying;

[0015] S3. The robotic arm drives the rotating frame to move, and the rotating frame drives the electric blanking gripper and the electric loading gripper to move to the material;

[0016] S4. Adjust the position of the positioning switch through the adjusting mechanism according to the processing requirements;

[0017] S5. The pushing mechanism pushes the material to move, so that the material abuts against the positioning switch. After the positioning switch contacts the material, control the pushing mechanism to reset, and make the electric loading gripper clamp the material;

[0018] S6. The robotic arm drives the electric loading gripper to move to the chuck. The chuck opens, and the robotic arm inserts the material into the chuck. The chuck clamps the material to complete the loading;

[0019] S7. The robotic arm 4 moves to the pushing mechanism, repeats step S5 to continue clamping the material. After the clamping is completed, move the material to the chuck without affecting normal processing;

[0020] S8. After the processing is completed, the robotic arm drives the rotating frame to rotate. The rotating frame rotates half a turn, and the rotating frame drives the electric blanking gripper and the electric loading gripper to flip. The electric blanking gripper moves to the processed workpiece. The chuck is loosened, and the electric blanking gripper removes the workpiece;

[0021] S9. The robotic arm drives the rotating frame to rotate reversely by half a turn again, so that the electric blanking gripper and the electric loading gripper are reset, and the material can be inserted into the chuck for the next round of processing. The robotic arm drives the electric blanking gripper to move to the blanking position and put down the workpiece.

[0022] S10. The robotic arm repeats S5 - S9 to achieve automatic loading and unloading.

[0023] Compared with the prior art, the present invention has the following beneficial technical effects:

[0024] In the present invention, the materials are evenly placed on the conveying mechanism. The baffle can guide the materials to prevent the materials from shifting and affecting subsequent clamping. When the materials move to the opening, the materials contact the trigger switch, and the trigger switch controls the conveying mechanism to stop conveying, so that the materials can stop at the opening. When the robotic arm drives the rotating frame and the electric loading gripper to move to the opening, they clamp on both sides of the materials but do not clamp tightly, guiding the materials. The telescopic cylinder pushes the push block to move, and the push block pushes the materials to move, so that one end of the materials contacts the positioning switch, thereby triggering the positioning switch. The positioning switch controls the telescopic cylinder to reset and controls the electric loading gripper to clamp the materials tightly. The robotic arm drives the electric loading gripper and the materials to move to the chuck. The chuck opens. If there is a processed workpiece in the chuck and the robotic arm first drives the rotating frame to rotate by half a turn, the electric blanking gripper can contact the workpiece and take out the workpiece. After the workpiece is taken out, the robotic arm drives the rotating frame to reset, so that the electric loading gripper faces the chuck, and thus the materials can be put into the chuck. The chuck clamps the materials. After the clamping is completed, the electric loading gripper releases the materials. The robotic arm conveys the workpiece to the blanking box, and the electric blanking gripper opens, so that the workpiece can be put into the blanking box. When the materials at the trigger switch are removed, the conveying mechanism conveys another material to contact the trigger switch, causing the conveying mechanism to stop. The robotic arm drives the electric loading gripper to move to the opening to pick up the materials and wait for the next round of processing, thus realizing automatic loading and unloading. Since the length of the workpiece leaking out of the chuck is controllable and a certain margin is reserved during clamping, it is convenient for automatic tool setting during processing and automatic processing according to the programmed procedure. When processing the materials, the robotic arm drives the electric loading gripper to pick up the materials. After the materials are processed, the electric blanking gripper takes down the workpiece, the electric loading gripper inserts the materials into the chuck, and then puts the workpiece into the blanking box, realizing continuous automatic loading and unloading. Workers only need to replenish the materials on the conveying mechanism in time, reducing the labor cost and eliminating the need for manual tool setting, improving the efficiency. Description of the Drawings

[0025] Figure 1 It is a schematic structural diagram of an embodiment in the present invention;

[0026] Figure 2 It is a schematic structural diagram of the robotic arm in the present invention;

[0027] Figure 3 This is a schematic diagram of the partial structure of the embodiment in the present invention;

[0028] Figure 4 is Figure 2 a schematic diagram of the partial enlarged structure at position A in

[0029] Reference numerals: 1, numerically controlled lathe; 2, chuck; 3, support frame; 4, robotic arm; 5, mounting frame; 6, conveying mechanism; 601, conveying wheel; 602, conveyor belt; 603, conveying roller; 7, trigger switch; 8, baffle; 801, opening; 9, pushing mechanism; 901, support plate; 902, telescopic cylinder; 903, push block; 10, rotating frame; 11, electric blanking gripper; 12, electric loading gripper; 13, positioning switch; 14, adjusting mechanism; 1401, second motor; 1402, lead screw; 1403, sliding frame; 1404, guide rail; 15, blanking box. Detailed implementation manners

[0030] Embodiment 1

[0031] As Figures 1-4 shown, a fully automatic loading mechanism for a numerically controlled lathe proposed by the present invention includes a numerically controlled lathe 1, a chuck 2, a support frame 3, a robotic arm 4, a mounting frame 5, a conveying mechanism 6, a pushing mechanism 9, a rotating frame 10, an electric blanking gripper 11, an electric loading gripper 12, and a positioning switch 13;

[0032] The chuck 2 is arranged on the main shaft of the numerically controlled lathe 1; the support frame 3 and the mounting frame 5 are both arranged on the numerically controlled lathe 1; the robotic arm 4 is arranged on the support frame 3; the conveying mechanism 6 is arranged on the mounting frame 5; the rotating frame 10 is rotatably arranged on the robotic arm 4; the electric blanking gripper 11 and the electric loading gripper 12 are respectively arranged at both ends of the rotating frame 10; the positioning switch 13 is slidably arranged on the electric loading gripper 12; an adjusting mechanism 14 for adjusting the position of the positioning switch 13 is arranged on the electric loading gripper 12; the pushing mechanism 9 is arranged on the mounting frame 5, and the output end of the pushing mechanism 9 is slidably connected to the mounting frame 5; the pushing mechanism 9 is communicatively connected to the positioning switch 13. A blanking box 15 is arranged at the lower end of the numerically controlled lathe 1; the blanking box 15 can store the workpieces taken off from the numerically controlled lathe 1 by the electric blanking gripper 11.

[0033] A trigger switch 7 and a baffle 8 are provided on the mounting bracket 5; an opening 801 is provided on the baffle 8; the output end of the pushing mechanism 9 is located at the opening 801; the trigger switch 7 is located at the opening 801; the trigger switch 7 is connected to the first motor for control. The pushing mechanism 9 includes a support plate 901, a telescopic cylinder 902 and a pushing block 903; the support plate 901 is provided on the mounting bracket 5; the telescopic cylinder 902 is provided on the support plate 901; the output end of the telescopic cylinder 902 is connected to the pushing block 903; the pushing block 903 is slidably arranged at the opening 801; the positioning switch 13 is connected to the telescopic cylinder 902 for control.

[0034] The present invention also provides a usage method of a full-automatic loading mechanism for a numerical control lathe, including the following steps:

[0035] S1. Place the material on the conveying mechanism 6;

[0036] S2. The conveying mechanism 6 conveys the material to the pushing mechanism 9 and stops conveying;

[0037] S3. The robotic arm 4 drives the rotating frame 10 to move, and the rotating frame 10 drives the electric blanking gripper 11 and the electric loading gripper 12 to move to the material;

[0038] S4. Adjust the position of the positioning switch 13 through the adjusting mechanism 14 according to the processing requirements;

[0039] S5. The pushing mechanism 9 pushes the material to move, so that the material abuts against the positioning switch 13. After the positioning switch 13 contacts the material, control the pushing mechanism 9 to reset, and make the electric loading gripper 12 clamp the material;

[0040] S6. The robotic arm 4 drives the electric loading gripper 12 to move to the chuck 2. The chuck 2 opens, and the robotic arm 4 inserts the material into the chuck 2. The chuck 2 clamps the material to complete the loading;

[0041] S7. The robotic arm 4 moves to the pushing mechanism 9, repeats step S5 to continue clamping the material. After the clamping is completed, without affecting the normal processing, move the material to the chuck 2;

[0042] S8. After the processing is completed, the robotic arm 4 drives the rotating frame 10 to rotate. The rotating frame 10 rotates half a turn, and the rotating frame 10 drives the electric blanking gripper 11 and the electric loading gripper 12 to flip. The electric blanking gripper 11 moves to the processed workpiece. The chuck 2 loosens, and the electric blanking gripper 11 removes the workpiece;

[0043] S9. The robotic arm 4 drives the rotating frame 10 to rotate reversely by half a turn again, so that the electric blanking gripper 11 and the electric loading gripper 12 are reset, and the material can be inserted into the chuck 2 for the next round of processing. The robotic arm 4 drives the electric blanking gripper 11 to move to the blanking place and put down the workpiece;

[0044] S10. The robotic arm 4 repeats S5 - S9 to achieve automatic loading and unloading.

[0045] In this embodiment, the materials are evenly placed on the conveying mechanism 6. The baffle 8 can guide the materials to prevent the materials from shifting and affecting subsequent clamping. When the materials move to the opening 801, the materials contact the trigger switch 7, and the trigger switch 7 controls the conveying mechanism 6 to stop conveying, so that the materials can stop at the opening 801. When the robotic arm 4 drives the rotating frame 10 and the electric loading gripper 12 to move to the opening 801, they clamp on both sides of the materials but do not clamp tightly, guiding the materials. The telescopic cylinder 902 pushes the push block 903 to move, and the push block 903 pushes the materials to move, so that one end of the materials contacts the positioning switch 13, thereby triggering the positioning switch 13. The positioning switch 13 controls the telescopic cylinder 902 to reset and controls the electric loading gripper 12 to clamp the materials tightly. The robotic arm 4 drives the electric loading gripper 12 and the materials to move to the chuck 2. The chuck 2 opens. If there is a processed workpiece in the chuck 2, and the robotic arm 4 first drives the rotating frame 10 to rotate half a circle, so that the electric unloading gripper 11 can contact the workpiece and take out the workpiece. After the workpiece is taken out, the robotic arm 4 drives the rotating frame 10 to reset, so that the electric loading gripper 12 faces the chuck, so that the materials can be placed into the chuck 2. The chuck 2 clamps the materials. After the clamping is completed, the electric loading gripper 12 releases the materials. The robotic arm 4 transports the workpiece to the unloading box 15. The electric unloading gripper 11 opens, so that the workpiece can be placed into the unloading box 15. When the materials at the trigger switch 7 are removed, the conveying mechanism 6 conveys another material to contact the trigger switch 7, causing the conveying mechanism 6 to stop. The robotic arm 4 drives the electric loading gripper 12 to move to the opening 801 to pick up the materials and wait for the next round of processing, thus realizing automatic loading and unloading. Since the length of the workpiece leaking out of the chuck 2 is controllable and a part of the allowance is reserved during clamping, it is convenient for automatic tool setting during processing and automatic processing according to the programmed procedure. When processing the materials, the robotic arm 4 drives the electric loading gripper 12 to pick up the materials. After the materials are processed, the electric unloading gripper 11 takes down the workpiece, the electric loading gripper 12 inserts the materials into the chuck 2, and then puts the workpiece into the unloading box 15, realizing continuous automatic loading and unloading. Workers only need to replenish the materials on the conveying mechanism 6 in time, reducing the labor cost and eliminating the need for manual tool setting, improving the efficiency.

[0046] Embodiment 2

[0047] As Figures 1-4As shown in the figure, a fully automatic feeding mechanism for a numerically controlled lathe proposed by the present invention. Compared with the first embodiment, in this embodiment, the conveying mechanism 6 includes a first motor, a conveying wheel 601, a conveyor belt 602 and a conveying roller 603; the first motor is arranged on the mounting frame 5; there are two conveying wheels 601 and two conveyor belts 602, and both of the two conveying wheels 601 are rotatably arranged on the mounting frame 5; the output end of the first motor is connected to any one of the conveying wheels 601; the conveyor belt 602 is drivingly connected to the conveying wheel 601; there are multiple conveying rollers 603, and both ends of the multiple conveying rollers 603 are rotatably arranged on the two conveyor belts 602 respectively and are evenly distributed.

[0048] In this embodiment, the first motor drives the conveying wheel 601 to rotate, the conveying wheel 601 drives the conveyor belt 602 to move, the conveyor belt 602 drives the conveying roller 603 to move, and a material is placed between every two conveying rollers 603, so that the conveying roller 603 can drive the material to move when moving, and the conveying roller 603 can position and limit the material to prevent the material from moving.

[0049] Embodiment Three

[0050] As Figures 1-4 As shown in the figure, a fully automatic feeding mechanism for a numerically controlled lathe proposed by the present invention. Compared with the first embodiment or the second embodiment, in this embodiment, the adjusting mechanism 14 includes a second motor 1401, a lead screw 1402, a sliding frame 1403 and a guide rail 1404; the second motor 1401 and the guide rail 1404 are both arranged on the electric loading gripper 12, and the output end of the second motor 1401 is connected to the lead screw 1402; the sliding frame 1403 is slidably arranged on the electric loading gripper 12 and the guide rail 1404; one end of the sliding frame 1403 is threadedly connected to the lead screw 1402; the positioning switch 13 is arranged at the other end of the sliding frame 1403.

[0051] In this embodiment, the second motor 1401 drives the lead screw 1402 to rotate, the lead screw 1402 drives the sliding frame 1403 to move, the guide rail 1404 supports and guides the sliding frame 1403, and the sliding frame 1403 drives the positioning switch 13 to move, so as to adjust the position of the positioning switch 13, be able to adjust the length of the raw material leaking out of the chuck 2, be able to facilitate the tool setting operation of the numerically controlled lathe 1, and be able to facilitate the numerically controlled lathe to perform processing according to the program, avoiding the occurrence of tool hitting accidents.

[0052] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made without departing from the spirit of the present invention within the knowledge scope of those skilled in the art.

Claims

1. An automatic loading mechanism for a numerically controlled lathe, characterized in that, It includes a numerically controlled lathe (1), a chuck (2), a support frame (3), a robotic arm (4), a mounting frame (5), a conveying mechanism (6), a pushing mechanism (9), a rotating frame (10), an electric blanking gripper (11), an electric loading gripper (12), and a positioning switch (13); The chuck (2) is arranged on the main shaft of the numerically controlled lathe (1); both the support frame (3) and the mounting frame (5) are arranged on the numerically controlled lathe (1); the robotic arm (4) is arranged on the support frame (3); the conveying mechanism (6) is arranged on the mounting frame (5); the rotating frame (10) is rotatably arranged on the robotic arm (4); the electric blanking gripper (11) and the electric loading gripper (12) are respectively arranged at both ends of the rotating frame (10); the positioning switch (13) is slidably arranged on the electric loading gripper (12); an adjusting mechanism (14) for adjusting the position of the positioning switch (13) is arranged on the electric loading gripper (12); the pushing mechanism (9) is arranged on the mounting frame (5), and the output end of the pushing mechanism (9) is slidably connected to the mounting frame (5); the pushing mechanism (9) is communicatively connected to the positioning switch (13); A trigger switch (7) and a baffle (8) are arranged on the mounting frame (5); an opening (801) is arranged on the baffle (8); the output end of the pushing mechanism (9) is located at the opening (801); the trigger switch (7) is located at the opening (801); the trigger switch (7) is connected to the first motor for control; The adjusting mechanism (14) includes a second motor (1401), a lead screw (1402), a sliding frame (1403), and a guide rail (1404); both the second motor (1401) and the guide rail (1404) are arranged on the electric loading gripper (12), and the output end of the second motor (1401) is connected to the lead screw (1402); the sliding frame (1403) is slidably arranged on the electric loading gripper (12) and the guide rail (1404); one end of the sliding frame (1403) is threadedly connected to the lead screw (1402); the positioning switch (13) is arranged at the other end of the sliding frame (1403); A fully automatic loading method for a numerically controlled lathe includes the following steps: S1. Place the material on the conveying mechanism (6); S2. The conveying mechanism (6) conveys the material to the pushing mechanism (9) and stops conveying; S3. The robotic arm (4) drives the rotating frame (10) to move, and the rotating frame (10) drives the electric blanking gripper (11) and the electric loading gripper (12) to move to the material; S4. Adjust the position of the positioning switch (13) through the adjusting mechanism (14) according to the processing requirements; S5. The pushing mechanism (9) pushes the material to move so that the material abuts against the positioning switch (13). After the positioning switch (13) contacts the material, control the pushing mechanism (9) to reset, and make the electric loading gripper (12) clamp the material; S6. The robotic arm (4) drives the electric loading gripper (12) to move to the chuck (2). The chuck (2) opens, the robotic arm (4) inserts the material into the chuck (2), and the chuck (2) clamps the material to complete the loading; S7. The robotic arm (4) moves to the pushing mechanism (9), and step S5 is repeated to continue clamping the material. After the clamping is completed, without affecting normal machining, the material is moved to the chuck (2). S8. After machining is completed, the robotic arm (4) drives the rotating frame (10) to rotate. The rotating frame (10) rotates half a turn, and the rotating frame (10) drives the electric blanking gripper (11) and the electric loading gripper (12) to flip. The electric blanking gripper (11) moves to the machined workpiece, the chuck (2) is loosened, and the electric blanking gripper (11) removes the workpiece. S9. The robotic arm (4) drives the rotating frame (10) to rotate in the reverse direction by half a turn again, so that the electric blanking gripper (11) and the electric loading gripper (12) are reset, and the material can be inserted into the chuck (2) for the next round of machining. The robotic arm (4) drives the electric blanking gripper (11) to move to the blanking position and put down the workpiece. S10. The robotic arm (4) repeats S5 - S9 to achieve automatic loading and unloading.

2. The fully automatic loading mechanism for a numerically controlled lathe according to claim 1, characterized in that, The conveying mechanism (6) includes a first motor, a conveying wheel (601), a conveyor belt (602) and conveying rollers (603); the first motor is arranged on the mounting frame (5); there are two conveying wheels (601) and two conveyor belts (602), and both conveying wheels (601) are rotatably arranged on the mounting frame (5); the output end of the first motor is connected to any one of the conveying wheels (601); the conveyor belt (602) is drivingly connected to the conveying wheel (601); there are multiple conveying rollers (603), and both ends of the multiple conveying rollers (603) are rotatably arranged on the two conveyor belts (602) and are evenly distributed.

3. The fully automatic loading mechanism for a numerically controlled lathe according to claim 1, characterized in that, The pushing mechanism (9) includes a support plate (901), a telescopic cylinder (902) and a push block (903); the support plate (901) is arranged on the mounting frame (5); the telescopic cylinder (902) is arranged on the support plate (901); the output end of the telescopic cylinder (902) is connected to the push block (903); the push block (903) is slidably arranged at the opening (801); the position switch (13) is control - connected to the telescopic cylinder (902).

4. The fully automatic loading mechanism for a numerically controlled lathe according to claim 1, characterized in that, A blanking box (15) is arranged at the lower end of the CNC lathe (1).

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