Automatic feeding and discharging device of numerical control machine tool

Abstract

The utility model discloses an automatic feeding and discharging device of a numerical control machine tool, which comprises a base, a workbench is mounted on the upper surface of the base, a side plate is fixedly mounted on the rear side of the workbench, and a feeding conveying belt and a discharging conveying belt are respectively arranged at two ends of the base. A feeding device and a discharging device which are of the same structure are arranged on the two sides of the workbench correspondingly, and a driving device for driving the feeding device and the discharging device to turn over is installed on the back face of the side plate. The automatic workpiece grabbing and releasing device can better adapt to grabbing of different workpieces, and the automatic workpiece grabbing and releasing range is widened.

Description

Technical Field

[0001] The utility model relates to numerical control machine tool technology, in particular to an automatic loading and unloading device for numerical control machine tools. Background Art

[0002] With the continuous advancement of science and technology, the field of CNC machine tools has developed rapidly. New CNC machine tools are generally equipped with automatic loading and unloading devices. There are many shortcomings in such existing devices. For example, when clamping products, the clamping jaws are not strong enough, causing parts to fall during the loading and unloading process. Only one clamping jaw is used for transportation, and loading and unloading cannot be performed synchronously. The processing efficiency and time cost are not optimal, and the clamping jaws of the clamping device can only be used for parts of the same type. Summary of the invention

[0003] In order to solve the above problems, the technical solution of the utility model is an automatic loading and unloading device for CNC machine tools, which comprises a base, a workbench is installed on the upper surface of the base, a side plate is fixedly installed on the rear side of the workbench, a loading conveyor belt and a unloading conveyor belt are respectively arranged at both ends of the base, a loading device and an unloading device with the same structure are respectively arranged on both sides of the workbench, and a driving device for driving the loading device and the unloading device to flip is installed on the back of the side plate;

[0004] The feeding device includes a right-angle plate, and a driving rod and a rotating rod are rotatably connected to the two right-angle sides of the right-angle plate respectively. An active bevel gear and a driven bevel gear are fixedly installed on the adjacent ends of the driving rod and the rotating rod respectively, and the active bevel gear and the driven bevel gear are meshed with each other. The driving rod is rotatably installed on the side plate, and the other end of the driving rod is fixedly connected to the gear, and the other end of the rotating rod is fixedly connected to a clamping device.

[0005] In order to facilitate the flipping of the loading device and the unloading device when taking and placing items, the driving device includes a hydraulic telescopic rod, the telescopic end of the hydraulic telescopic rod is fixedly connected to a connecting rod, the connecting rod is fixedly connected to the bottom surface of the tooth plate, and a slide groove is provided on the back side of the side plate, the tooth plate is slidably installed in the slide groove, and the tooth plate is meshed with the gear.

[0006] In order to facilitate the control of the clamping device to clamp the workpiece, the clamping device includes a mounting plate, one end of the mounting plate is fixedly connected to the rotating rod, an electric telescopic rod is fixedly installed in the middle of the mounting plate, the output end of the electric telescopic rod passes through the mounting plate and is fixedly connected to a connecting seat, both ends of the side of the mounting plate away from the rotating rod are hinged with movable rods, the other ends of the two movable rods are installed with exchange chucks with symmetrical structures, and the connecting seat is movably connected to one end of the movable rod away from the mounting plate through an adjusting rod.

[0007] In order to enable the clamping device to better clamp the workpiece, the replacement chuck includes a hexagonal column, the hexagonal column is installed on a driving motor, the driving motor is fixedly connected to the movable rod, the six side surfaces of the hexagonal column are installed with mounting seats, each of the mounting seats is fixed with a clamp by bolts, the end of the clamp away from the hexagonal column is provided with a clamping groove, the clamping groove is provided with a suction cup, a connector connected to the suction cup is installed on the clamping plate, the connector is connected to the vacuum pump through a suction pipe, an equipment groove is opened on the hexagonal column, and the vacuum pump is installed in the equipment groove.

[0008] In order to improve the stability of workpiece clamping, a pressure sensor is arranged at the bottom of the suction cup, and a solenoid valve is installed on the connecting head.

[0009] In order to better clamp workpieces of different shapes, the structures of the clamping grooves of the six clamping plates are different.

[0010] The beneficial effects of the utility model are as follows: the device can realize the automatic grasping and placing functions of loading and unloading materials, thereby improving the processing efficiency; at the same time, a suction cup is arranged on the clamping device, which can clamp the workpiece more firmly and avoid damage to the workpiece; the clamping grooves of the clamping plate have different shapes, which can better adapt to grasping different workpieces and expand the scope of automatic grasping and placing of workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the overall structure of the utility model from a first viewing angle;

[0012] Figure 2 This is a schematic diagram of the overall structure of the utility model from a second viewing angle;

[0013] Figure 3 It is a structural schematic diagram of the feeding device of the utility model;

[0014] Figure 4 This is a schematic diagram of the replacement chuck structure of the utility model.

[0015] In the figure: 1. base; 2. side plate; 3. workbench; 4. feeding conveyor belt; 5. unloading conveyor belt; 6. feeding device; 7. unloading device; 8. driving device; 81. hydraulic telescopic rod; 82. connecting rod; 83. tooth plate; 84. gear; 201. slideway; 61. driving rod; 62. right-angle plate; 63. active bevel gear; 64. driven bevel gear; 65. rotating rod; 66. clamping device; 661. mounting plate; 662. electric telescopic rod; 663. movable rod; 664. connecting seat; 665. adjusting rod; 666. changing chuck; 6661. driving motor; 6662. hexagonal column; 6663. mounting seat; 6664. clamping plate; 6665. clamping groove; 6666. suction cup; 6667. suction pipe; 6668. vacuum pump; 6669. connecting head. DETAILED DESCRIPTION

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] exist Figures 1 to 4 In the invention, an automatic loading and unloading device for a CNC machine tool is provided, which comprises a base 1, a workbench 3 is installed on the upper surface of the base 1, a side plate 2 is fixedly installed on the rear side of the workbench 3, a loading conveyor belt 4 and a unloading conveyor belt 5 are respectively provided at both ends of the base 1, a loading device 6 and a unloading device 7 with the same structure are respectively provided on both sides of the workbench 3, and a driving device 8 for driving the loading device 6 and the unloading device 7 to flip is installed on the back of the side plate 2;

[0018] The feeding device 6 includes a right-angle plate 62, and a driving rod 61 and a rotating rod 65 are rotatably connected to the two right-angle sides of the right-angle plate 62 respectively. An active bevel gear 63 and a driven bevel gear 64 are fixedly installed on the adjacent ends of the driving rod 61 and the rotating rod 65 respectively. The active bevel gear 63 and the driven bevel gear 64 are meshed with each other. The driving rod 61 is rotatably installed on the side plate 2, and the other end thereof is fixedly connected to the gear 84. The other end of the rotating rod 65 is fixedly connected to a clamping device 66.

[0019] The driving rod 61 rotates, the driving rod 61 drives the active bevel gear 63 to rotate, the active bevel gear 63 drives the driven bevel gear 64 to rotate, thereby driving the right angle plate 62 to flip, thereby driving the clamping device 66 to flip from the side of the feeding conveyor belt 4 to the side of the workbench 3, thereby completing the feeding operation. Similarly, the unloading device 7 can also complete the unloading operation.

[0020] Furthermore, the driving device includes a hydraulic telescopic rod 81, the telescopic end of the hydraulic telescopic rod 81 is fixedly connected to a connecting rod 82, the connecting rod 82 is fixedly connected to the bottom surface of the tooth plate 83, and a slide groove 201 is provided on the back side of the side plate 2, the tooth plate 83 is slidably installed in the slide groove 201, and the tooth plate 83 is meshed with the gear 84.

[0021] The hydraulic telescopic rod 81 drives the connecting rod 82 to move, the connecting rod 82 drives the tooth plate 83 to move horizontally, the tooth plate 83 moves and drives the gear 84 to rotate, thereby driving the driving rod 61 to rotate, thereby completing the loading operation of the loading device 6. In the process of the hydraulic telescopic rod 81 driving the tooth plate 83 to make reciprocating motion, the loading device 6 continues to load the material. Similarly, the unloading device 7 also operates in the same way when unloading.

[0022] Furthermore, the clamping device 66 includes a mounting plate 661, one end of which is fixedly connected to the rotating rod 65, an electric telescopic rod 662 is fixedly installed in the middle of the mounting plate 661, the output end of the electric telescopic rod 662 passes through the mounting plate 661 and is fixedly connected to a connecting seat 664, both ends of the side of the mounting plate 661 away from the rotating rod 65 are hinged with movable rods 663, the other ends of the two movable rods 663 are installed with interchangeable chucks 666 with symmetrical structures, and the connecting seat 664 is movably connected to one end of the movable rod 663 away from the mounting plate 661 through an adjusting rod 665.

[0023] Furthermore, the replacement chuck 666 includes a hexagonal column 6662, and the hexagonal column 6662 is installed on a driving motor 6661, and the driving motor 6661 is fixedly connected to the movable rod 663. The six side surfaces of the hexagonal column 6662 are installed with mounting seats 6663, and each mounting seat 6663 is fixed with a clamping plate 6664 by bolts. The end of the clamping plate 6664 away from the hexagonal column 6662 is provided with a clamping groove 6665, and the clamping groove 6665 is provided with a suction cup 6666. A connector 6669 connected to the suction cup 6666 is installed on the clamping plate 6664, and the connector 6669 is connected to the vacuum pump 6668 through a suction pipe 6667. An equipment slot is opened on the hexagonal column 6662, and the vacuum pump 6668 is installed in the equipment slot.

[0024] Furthermore, a pressure sensor is provided at the bottom of the suction cup 6666 , and a solenoid valve is installed on the connecting head 6669 .

[0025] Furthermore, the structures of the clamping grooves 6665 of the six clamping plates 6664 are different.

[0026] The driving motor 6661 is started, driving the hexagonal column 6662 to rotate, and the corresponding clamping plate 6664 is replaced according to the shape of the workpiece, and the clamping plate 6664 is rotated to the specified position, and then the electric telescopic rod 662 is extended to drive the connecting seat 664 to move, and the connecting seat 664 drives the movable rods 663 on both sides to move to both sides through the adjustment rod 665, thereby driving the two exchange chucks 666 to move to both sides, so that the workpiece is located between the two exchange chucks 666, and then the electric telescopic rod 662 is retracted to drive the connecting seat 664 to move in the direction of the electric telescopic rod 662 , thereby driving the movable rods 663 on both sides to move toward the middle through the adjusting rod 665, thereby driving the exchange chucks 666 on both sides to approach each other, clamping the workpiece between the two clamping plates 6664, and the workpiece squeezes the suction cup 6666. The pressure sensor detects the pressure and transmits the signal to the solenoid valve, which controls the solenoid valve to open, and the air pump 6668 is started. Suction is generated on the workpiece through the suction pipe 6667 and the suction cup 6666, thereby improving the stability of the workpiece clamping and avoiding the workpiece from falling during the loading and unloading process, which affects the subsequent processing of the workpiece.

[0027] When the loading device 6 is working, the workpiece on the loading conveyor belt 4 is transported to the workbench 3 , and when the unloading device 7 is working, the workpiece processed on the workbench 3 is transported to the unloading conveyor belt 5 .

[0028] When in use, the driving device 8 drives the loading device 6 and the unloading device 7 to work simultaneously. The loading device 6 first transports the workpiece on the loading conveyor belt 4 to the workbench 3 for processing. After the processing is completed, the driving device 8 drives the unloading device 7 to transport the processed workpiece on the workbench 3 to the unloading conveyor belt 5. At the same time, the loading device 6 starts to transport the next workpiece to the workbench 3 for processing. The loading and unloading operations can be completed synchronously, thereby improving work efficiency.

[0029] The control method of the present application document is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by technicians in this field, which is common knowledge in this field. In addition, the present application document is mainly used to protect mechanical devices, so the present application document no longer explains the control method and circuit connection in detail. The device is powered by a built-in power supply or an external power supply.

[0030] In the description of the present invention, it should be understood that the terms "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "inside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic loading and unloading device for a CNC machine tool, comprising a base (1), a workbench (3) being mounted on the upper surface of the base (1), characterized in that: A side plate (2) is fixedly mounted on the rear side of the workbench (3); a loading conveyor belt (4) and a unloading conveyor belt (5) are respectively arranged at both ends of the base (1); a loading device (6) and a unloading device (7) having the same structure are respectively arranged on both sides of the workbench (3); and a driving device (8) for driving the loading device (6) and the unloading device (7) to flip is installed on the back side of the side plate (2); The feeding device (6) comprises a right-angle plate (62), and a driving rod (61) and a rotating rod (65) are rotatably connected to two right-angle sides of the right-angle plate (62), respectively; a driving bevel gear (63) and a driven bevel gear (64) are fixedly mounted on adjacent ends of the driving rod (61) and the rotating rod (65), respectively; the driving bevel gear (63) and the driven bevel gear (64) are meshed with each other; the driving rod (61) is rotatably mounted on the side plate (2), and the other end thereof is fixedly connected to the gear (84); the other end of the rotating rod (65) is fixedly connected to a clamping device (66).

2. The automatic loading and unloading device for a CNC machine tool according to claim 1, characterized in that: The driving device comprises a hydraulic telescopic rod (81), the telescopic end of the hydraulic telescopic rod (81) is fixedly connected to a connecting rod (82), the connecting rod (82) is fixedly connected to the bottom surface of a toothed plate (83), a slide groove (201) is provided on the back surface of the side plate (2), the toothed plate (83) is slidably mounted in the slide groove (201), and the toothed plate (83) is meshed with a gear (84).

3. The automatic loading and unloading device for CNC machine tools according to claim 1, characterized in that: The clamping device (66) comprises a mounting plate (661), one end of which is fixedly connected to the rotating rod (65), an electric telescopic rod (662) is fixedly mounted in the middle of the mounting plate (661), an output end of the electric telescopic rod (662) passes through the mounting plate (661) and is fixedly connected to a connecting seat (664), both ends of the side of the mounting plate (661) away from the rotating rod (65) are hinged with movable rods (663), the other ends of the two movable rods (663) are both mounted with interchangeable chucks (666) of symmetrical structure, and the connecting seat (664) is movably connected to one end of the movable rod (663) away from the mounting plate (661) via an adjusting rod (665).

4. The automatic loading and unloading device for a CNC machine tool according to claim 3, characterized in that: The exchange chuck (666) comprises a hexagonal column (6662), wherein the hexagonal column (6662) is mounted on a driving motor (6661), wherein the driving motor (6661) is fixedly connected to a movable rod (663), and mounting seats (6663) are mounted on six side surfaces of the hexagonal column (6662), and a clamping plate (6664) is fixedly mounted on each mounting seat (6663) by means of bolts, wherein the clamping plate (6664) is away from the hexagonal column (6662). A clamping groove (6665) is provided at one end of the column (6662), a suction cup (6666) is provided on the clamping groove (6665), a connector (6669) connected to the suction cup (6666) is installed on the clamping plate (6664), the connector (6669) is connected to an air pump (6668) via a suction pipe (6667), an equipment groove is provided on the hexagonal column (6662), and the air pump (6668) is installed in the equipment groove.

5. The automatic loading and unloading device for a CNC machine tool according to claim 4, characterized in that: A pressure sensor is provided at the bottom of the suction cup (6666), and a solenoid valve is installed on the connecting head (6669).

6. The automatic loading and unloading device for a CNC machine tool according to claim 4, characterized in that: The structures of the clamping grooves (6665) of the six clamping plates (6664) are different.

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