Automatic feeding and discharging device for numerical control machine tool

Abstract

The utility model relates to a feeding and discharging device, in particular to an automatic feeding and discharging device for a numerical control machine tool, which comprises a CNC (computerized numerical control) machine tool, a controller, a motor, a first cylinder, a connecting piece, a second cylinder and the like. A controller is installed on one side of the CNC machine tool, a conveying mechanism used for conveying workpieces is arranged on one side of the CNC machine tool, a motor is arranged between the CNC machine tool and the conveying mechanism, a first air cylinder is arranged on an output shaft of the motor, and a piston rod of the first air cylinder is fixedly connected with a connecting piece. The rotary motor, the first air cylinder, the mechanical claw and other parts are combined for use, the structure is simpler, the space occupied by the periphery of the numerical control machine tool is reduced, the device adapts to the production environment with limited workshop space, meanwhile, the maintenance cost of the device is reduced through the simple structure, and large-scale production work is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to a feeding and discharging device, especially an automatic feeding and discharging device for numerical control machine tool. BACKGROUND

[0002] Numerical control machine tool is a highly automated machine tool, which uses pre-programmed instructions to control various moving parts of the machine tool, including the relative position, movement trajectory and speed of the tool and workpiece. The numerical control machine tool can realize accurate machining and flow production of workpieces by matching the feeding and discharging device, and is widely used in mechanical manufacturing, aerospace and automobile manufacturing, etc. It is an important equipment indispensable in modern manufacturing industry.

[0003] The traditional feeding and discharging device usually has a guide rail beside the numerical control machine tool, and a mechanical arm is installed on the guide rail. The feeding and discharging work of the numerical control machine tool is realized by the cooperation of the guide rail and the mechanical arm. However, due to the complexity of the structure of the guide rail, the guide rail needs to occupy a large space. In the face of limited production space, the device cannot meet the needs of users' large-scale construction, and the adaptability and flexibility of the device are defective. At the same time, the mechanical arm has high requirements for precision, and needs to be regularly maintained by professional personnel, which consumes high cost and is difficult to maintain.

[0004] Therefore, it is necessary to design an automatic feeding and discharging device for numerical control machine tool with less space ratio and low cost. UTILITY MODEL CONTENTS

[0005] In order to overcome the shortcomings of the traditional feeding and discharging device, which adopts guide rail and mechanical arm for feeding and discharging, occupies large space and has high maintenance cost, the purpose of the utility model is to provide an automatic feeding and discharging device for numerical control machine tool with less space ratio and low cost.

[0006] The technical scheme of the utility model is: an automatic feeding and discharging device for numerical control machine tool, comprising a CNC machine tool, a controller, a motor, a first air cylinder, a connecting piece, a second air cylinder, a third air cylinder, a mechanical clamp and a conveying mechanism. The CNC machine tool is provided with a controller on one side, and a conveying mechanism for conveying workpieces is arranged on one side of the CNC machine tool. A motor is arranged between the CNC machine tool and the conveying mechanism. A first air cylinder is arranged on the output shaft of the motor. The piston rod of the first air cylinder is fixedly connected with a connecting piece. The connecting piece is provided with a second air cylinder on opposite sides. The second air cylinder is perpendicular to the CNC machine tool and the conveying mechanism. The piston rod of the second air cylinder is connected with a third air cylinder. The piston rod of the third air cylinder is provided with a mechanical clamp. The mechanical clamp is located above the conveying mechanism.

[0007] As the improvement of the above-mentioned scheme, the mechanical clamp is composed of a fixing member, a traction rod, two clamping plates and multiple articulated rods, the traction rod of the mechanical clamp is connected with the piston rod of the third air cylinder, the piston rod of the third air cylinder is extended to drive the traction rod to move, the traction rod drives the articulated rods on the mechanical clamp to move in turn, the articulated rods on the mechanical clamp drive the two clamping plates to separate from each other, and the two clamping plates of the mechanical clamp approach to each other when the piston rod of the third air cylinder is retracted.

[0008] As the improvement of the above-mentioned scheme, the conveying mechanism comprises a first conveying belt and a second conveying belt, the first conveying belt is arranged on one side of the CNC machine tool, the second conveying belt is arranged on one side of the first conveying belt in parallel, and the first conveying belt and the second conveying belt are electrically connected with the controller.

[0009] As the improvement of the above-mentioned scheme, the surface of the conveying belt of the first conveying belt is provided with anti-skid lines for increasing the friction between the raw materials and the first conveying belt.

[0010] As the improvement of the above-mentioned scheme, the first conveying belt is provided with a photoelectric sensor, the first conveying belt is provided with a transmitter of the photoelectric sensor on one side, the first conveying belt is provided with a receiver of the photoelectric sensor on the side opposite to the transmitter, and the photoelectric sensor corresponds to the mechanical clamp.

[0011] As the improvement of the above-mentioned scheme, a buffer pad for protecting the workpiece is connected with the track on the mechanical clamp.

[0012] As the improvement of the above-mentioned scheme, the CNC machine tool is provided with an electric sliding rail, and the sliding block of the electric sliding rail is fixedly connected with a door plate for blocking the CNC machine tool.

[0013] As the improvement of the above-mentioned scheme, the CNC machine tool is provided with a signal lamp, and the signal lamp is electrically connected with the controller.

[0014] Compared with the prior art, the utility model has the advantages of simple structure, reduced space occupied around the numerical control machine tool, adaptation to the production environment with limited workshop space, reduced maintenance cost of the device, and convenient scale production.

[0015] 2、The application of the photoelectric sensor ensures that the raw materials stop at the correct position, the mechanical clamp accurately clamps, and the accuracy and fluency of the feeding and discharging work are improved.

[0016] 3、The door plate driven by the electric sliding rail blocks the machine tool when the device is on standby, prevents the precision instrument from being damaged, and prolongs the service life of the device. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This utility model Figure 1 Enlarged view of point A.

[0019] Figure 3 This is a three-dimensional structural diagram of the motor, cylinder number one, and cylinder number two of this utility model.

[0020] Figure 4 This is a three-dimensional structural diagram of the machine tool, light curtain, and controller of this utility model.

[0021] The labels in the diagram are as follows: 1-First conveyor belt, 2-Second conveyor belt, 3-Photoelectric sensor, 4-CNC machine tool, 5-Controller, 6-Motor, 7-Cylinder No. 1, 8-Connector, 9-Cylinder No. 2, 10-Cylinder No. 3, 11-Mechanical clamp, 12-Buffer pad, 13-Door panel, 1301-Electric slide rail, 14-Signal light. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example: An automated loading and unloading device for CNC machine tools, such as... Figures 1-3 As shown, the system includes a CNC machine tool 4, a controller 5, a motor 6, a first cylinder 7, a connecting piece 8, a second cylinder 9, a third cylinder 10, a mechanical clamp 11, and a conveying mechanism. The controller 5 is mounted on one side of the CNC machine tool 4, and a conveying mechanism for transporting workpieces is also located on one side of the CNC machine tool 4. A motor 6 is positioned between the CNC machine tool 4 and the conveying mechanism. A first cylinder 7 is mounted on the output shaft of the motor 6. The piston rod of the first cylinder 7 is fixedly connected to the connecting piece 8. Second cylinders 9 are mounted on opposite sides of the connecting piece 8. The second cylinders 9 are connected to the CNC machine tool 4 and the conveying mechanism. The mechanism is vertical. The piston rod of cylinder 9 is connected to cylinder 10. A mechanical clamp 11 is installed on the piston rod of cylinder 10, located above the conveying mechanism. Here, the motor 6 is designed to only drive cylinder 7 and its connected components to rotate 180 degrees, allowing the two cylinders 9 connected to cylinder 7 via connector 8 to exchange positions. After motor 6 drives cylinder 7 to complete one rotation, it needs to drive cylinder 7 to rotate in the opposite direction, so that cylinder 7 drives the connected cylinder 9 back to its initial position. This ensures the continuity and smoothness of the loading and unloading of the device.

[0024] As Figures 2-3 shown, the mechanical clamp 11 is composed of a fixed part, a traction rod, two clamping plates and multiple articulated rods. The traction rod of the mechanical clamp 11 is connected to the piston rod of the third air cylinder 10. When the piston rod of the third air cylinder 10 extends, it drives the traction rod to move, which in turn drives the articulated rods on the mechanical clamp 11 to move successively, causing the two clamping plates on the mechanical clamp 11 to move away from each other. When the piston rod of the third air cylinder 10 retracts, the two clamping plates of the mechanical clamp 11 move closer to each other. Here, during the operation of the device, the third air cylinder 10 is started, the piston rod of the third air cylinder 10 extends outward, the piston rod of the third air cylinder 10 drives the left mechanical clamp 11 to open, allowing the workpiece to enter the clamping range of the mechanical clamp 11. Then the piston rod of the third air cylinder 10 retracts inward, and the piston rod of the third air cylinder 10 drives the mechanical clamp 11 to clamp and fix the workpiece.

[0025] As Figure 1 shown, the conveying mechanism includes a first conveying belt 1 and a second conveying belt 2. The CNC machine tool 4 is provided with the first conveying belt 1 on one side, and the first conveying belt 1 is provided with the second conveying belt 2 on one side in parallel. The first conveying belt 1 and the second conveying belt 2 are both electrically connected with the controller 5. The surface of the conveying belt of the first conveying belt 1 is provided with anti-skid lines to increase the friction between the raw materials and the first conveying belt 1. Here, the design of the anti-skid lines of the first conveying belt 1 can increase the friction between the raw materials and the first conveying belt 1, prevent the raw materials from shifting or falling during the conveying process, ensure the accurate clamping of the raw materials by the mechanical clamp 11, and improve the smoothness of the feeding and discharging work.

[0026] As Figure 3 shown, the first conveying belt 1 is provided with a photoelectric sensor 3. The first conveying belt 1 is provided with a transmitter of the photoelectric sensor 3 on one side, and the side opposite to the transmitter of the photoelectric sensor 3 is provided with a receiver of the photoelectric sensor 3. The photoelectric sensor 3 corresponds to the mechanical clamp 11. Here, the photoelectric sensor 3 is electrically connected with the controller 5. When the raw materials move to the photoelectric sensor 3, the raw materials block the light beam emitted by the transmitter of the photoelectric sensor 3. Then, after the receiver of the photoelectric sensor 3 captures the change of the light beam, the photoelectric sensor 3 sends an electrical signal to the controller 5. After receiving the signal, the controller 5 controls the first conveying belt 1 to stop, so that the raw materials on the first conveying belt 1 stop moving, facilitating the clamping work of the mechanical clamp 11. Thus, the first conveying belt 1 can respond quickly, convey accurately, improve the working precision and efficiency.

[0027] As Figure 2 shown, the mechanical clamp 11 is provided with a buffer pad 12 for protecting the workpiece. Here, the buffer pad 12 is made of elastic rubber material. The design of the buffer pad 12 can form a buffer area between the mechanical clamp 11 and the workpiece, which can prevent the workpiece from falling and provide protection for the workpiece, preventing the workpiece from being damaged due to excessive clamping of the mechanical clamp 11.

[0028] As shown in Figure 4 The CNC machine tool 4 is provided with an electric sliding rail 1301, and the sliding block of the electric sliding rail 1301 is fixedly connected with a door plate 13 for blocking the CNC machine tool 4. Here, the electric sliding rail 1301 is started, the electric sliding rail 1301 drives the sliding block to slide outward, the sliding block of the electric sliding rail 1301 drives the connected door plate 13 to slide outward, so that the door plate 13 no longer blocks the CNC machine tool 4, thereby opening the CNC machine tool 4 to enter the working state. The design of the door plate 13 can block the CNC machine tool 4 when the device is on standby, prevent the precise instruments in the CNC machine tool 4 from being damaged, and prolong the service life of the device.

[0029] As shown in Figure 4 The top of the CNC machine tool 4 is provided with a signal lamp 14, and the signal lamp 14 is electrically connected with the controller 5. Here, when the device is running, the controller 5 controls the start of the signal lamp 14, the signal lamp 14 emits bright light with warning effect, thereby reminding the workers, preventing the workers from approaching too much, ensuring the stable operation of the detection work and the safety of the workers.

[0030] The device is used for feeding and discharging of CNC machine tool. When in use, the workpiece raw material is conveyed to the front of the left mechanical clamp 11 by the first conveying belt 1, then the first cylinder 7 is started, the piston rod of the first cylinder 7 is retracted inward, the piston rod of the first cylinder 7 drives the connecting piece 8 to move downward, the connecting piece 8 drives the connected second cylinder 9 to move downward, and then drives the connected third cylinder 10 to move downward, so that the mechanical clamp 11 moves downward with the third cylinder 10, at the same time, in the process of moving downward of the mechanical clamp 11, the left third cylinder 10 is started, the piston rod of the left third cylinder 10 extends outward, the piston rod of the left third cylinder 10 drives the left mechanical clamp 11 to open, so that the raw material enters the clamping range of the left mechanical clamp 11, then the piston rod of the left third cylinder 10 retracts inward, the piston rod of the left third cylinder 10 drives the left mechanical clamp 11 to clamp and fix the raw material on the first conveying belt 1, similarly, the right third cylinder 10 drives the right mechanical clamp 11 to clamp and fix the workpiece product on the CNC machine tool 4 through the extension and retraction of the piston rod, then the piston rod of the first cylinder 7 extends outward, the piston rod of the first cylinder 7 drives the second cylinder 9 connected through the connecting piece 8 to move upward, and then drives the third cylinder 10 to move upward, so that the left mechanical clamp 11 separates the workpiece raw material from the first conveying belt 1, and the right mechanical clamp 11 separates the workpiece product from the CNC machine tool 4, after completion, the second cylinder 9 is started, the piston rod of the second cylinder 9 retracts inward, the piston rod of the second cylinder 9 drives the connected third cylinder 10 to move inward, and then drives the mechanical clamp 11 to move inward, so that the right mechanical clamp 11 drives the workpiece product to exit the inside of the CNC machine tool 4, then the motor 6 is started, the motor 6 drives the output shaft to rotate, the output shaft of the motor 6 drives the connected first cylinder 7 to start rotating by 180 degrees, so that the left and right mechanical clamps 11 rotate with the first cylinder 7 to change positions, then the original left second cylinder 9 is started, the original left second cylinder 9 drives the original left mechanical clamp 11 to enter the inside of the CNC machine tool 4, then the first cylinder 7 drives the second cylinder 9 to move downward again, at the same time, the third cylinder 10 drives the corresponding mechanical clamp 11 to loosen the workpiece, so that the original left mechanical clamp 11 places the workpiece raw material on the machining position of the CNC machine tool 4, and the original right mechanical clamp 11 places the workpiece product on the second conveying belt 2, then the above operation is repeated, thereby completing the feeding and discharging work of the CNC machine tool.

[0031] The application is described in detail above, specific examples are applied to explain the principles and implementation modes of the application, the above examples are only used to help understand the method and core idea of the application; meanwhile, for those skilled in the art, according to the idea of the application, the specific implementation mode and application range can be changed, and the above description should not be understood as the limitation of the application.

Claims

1. An automated loading and unloading device for a CNC machine tool, comprising a CNC machine tool (4), a controller (5), and a conveying mechanism, wherein the controller (5) is mounted on one side of the CNC machine tool (4), and a conveying mechanism for conveying workpieces is provided on one side of the CNC machine tool (4), characterized in that: It also includes a motor (6), a first cylinder (7), a connector (8), a second cylinder (9), a third cylinder (10), and a mechanical clamp (11). A motor (6) is installed between the CNC machine tool (4) and the conveying mechanism. A first cylinder (7) is installed on the output shaft of the motor (6). The piston rod of the first cylinder (7) is fixedly connected to the connector (8). A second cylinder (9) is installed on both sides of the connector (8). The second cylinder (9) is perpendicular to the CNC machine tool (4) and the conveying mechanism. The piston rod of the second cylinder (9) is connected to the third cylinder (10). A mechanical clamp (11) is installed on the piston rod of the third cylinder (10). The mechanical clamp (11) is located above the conveying mechanism.

2. The automated loading and unloading device for CNC machine tools as described in claim 1, characterized in that: The mechanical clamp (11) is composed of a fixing part, a traction rod, two clamping plates and multiple hinge rods. The traction rod of the mechanical clamp (11) is connected to the piston rod of the third cylinder (10). When the piston rod of the third cylinder (10) extends, it drives the traction rod to move. The traction rod drives the hinge rod on the mechanical clamp (11) to move in succession, so that the hinge rod on the mechanical clamp (11) drives the two clamping plates to separate from each other. When the piston rod of the third cylinder (10) retracts, the two clamping plates of the mechanical clamp (11) move closer to each other.

3. The automated loading and unloading device for CNC machine tools as described in claim 2, characterized in that: The conveying mechanism includes a first conveyor belt (1) and a second conveyor belt (2). The first conveyor belt (1) is provided on one side of the CNC machine tool (4), and the second conveyor belt (2) is provided parallel to one side of the first conveyor belt (1). The first conveyor belt (1) and the second conveyor belt (2) are both electrically connected to the controller (5).

4. The automated loading and unloading device for CNC machine tools as described in claim 3, characterized in that: The surface of the first conveyor belt (1) is provided with anti-slip texture to increase the friction between the raw material and the first conveyor belt (1).

5. The automated loading and unloading device for CNC machine tools as described in claim 4, characterized in that: A photoelectric sensor (3) is installed on the first conveyor belt (1). A transmitter of the photoelectric sensor (3) is installed on one side of the first conveyor belt (1). A receiver of the photoelectric sensor (3) is installed on the side of the first conveyor belt (1) opposite to the transmitter of the photoelectric sensor (3). The photoelectric sensor (3) corresponds to the mechanical clamp (11).

6. The automated loading and unloading device for CNC machine tools as described in claim 5, characterized in that: The mechanical clamp (11) has a rail connected to a buffer pad (12) for protecting the workpiece.

7. The automated loading and unloading device for CNC machine tools as described in claim 6, characterized in that: The CNC machine tool (4) is equipped with an electric slide rail (1301), and the slider of the electric slide rail (1301) is fixedly connected to a door plate (13) for sealing the CNC machine tool (4).

8. The automated loading and unloading device for CNC machine tools as described in claim 7, characterized in that: The top of the CNC machine tool (4) is equipped with a signal light (14), which is electrically connected to the controller (5).

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