Automatic re-grabbing device for bending machine

Abstract

An automatic re-grabbing device for a bending machine comprises a fixing support, a mounting groove is formed in the fixing support, a detachable U-shaped mounting frame is mounted in the mounting groove, an opening of the U-shaped mounting frame faces outwards, a linear driving mechanism is mounted on one side of the opening, a push rod is mounted at the output end of the linear driving mechanism, and a check block is mounted on the other side of the opening of the U-shaped mounting frame. The stop block corresponds to the push rod in position, and the linear driving mechanism is in signal connection with a main control system of the bending machine. According to the utility model, the automation degree is improved, and operators are prevented from frequently entering the operation area of the bending machine.

Description

Technical Field

[0001] The utility model relates to the technical field of bending machines, in particular to an automatic re-grabbing device for bending machines. Background Art

[0002] A CNC bending machine is a machine that can bend various metal materials into workpieces of various geometric cross-sectional shapes using the molds it is equipped with. It uses computer control technology and sets appropriate parameters to allow the machine to bend according to a predetermined curve or angle, thereby realizing the processing of metal parts with complex shapes. Then, when faced with metal parts with particularly complex shapes, especially when both the front and back sides of some workpieces need to be bent, the robot cannot complete the flipping and bending. At this time, the operator needs to frequently enter the working area of ​​the machine tool to flip the workpiece, which is not only time-consuming and labor-intensive, but also poses a safety hazard. Therefore, it is necessary to design a re-gripping unit for a bending machine, and this re-gripping unit needs to have a high degree of automation, high processing accuracy, good reproducibility, and wide adaptability. Summary of the invention

[0003] The purpose of the utility model is to solve the problems existing in the above-mentioned prior art and to provide an automatic re-grasping device for a bending machine.

[0004] The specific scheme of the utility model is: an automatic re-gripping device for a bending machine, comprising a fixed bracket, a mounting groove is provided on the fixed bracket, a detachable U-shaped mounting bracket is installed in the mounting groove, the opening of the U-shaped mounting bracket faces outward, a linear drive mechanism is installed on one side of the opening, a push rod is installed at the output end of the linear drive mechanism, a stopper is installed on the other side of the opening of the U-shaped mounting bracket, the position of the stopper and the push rod corresponds, and the linear drive mechanism is connected to the main control system signal of the bending machine.

[0005] Furthermore, the linear drive mechanism adopts a cylinder, and a buffer block is installed at the outer end of the push rod of the cylinder.

[0006] Furthermore, the number of the cylinders is two, and the two cylinders are arranged side by side in the vertical direction, and two stoppers are correspondingly installed on the other side of the opening of the U-shaped mounting frame.

[0007] Furthermore, each end of the two cylinders is provided with an inlet and outlet air joint, the two inlet and outlet air joints at the same end are connected to the Y-shaped joint A through an air pipe, and the two inlet and outlet air joints at the other end are connected to the Y-shaped joint B through an air pipe, the Y-shaped joint A and the Y-shaped joint B are respectively connected to the air source, and a speed regulating valve is also connected in series between the Y-shaped joint A or the Y-shaped joint B and the air source, and the speed regulating valve is connected to the main control system of the bending machine.

[0008] Furthermore, the fixing bracket is made of aluminum profile, the mounting groove is arranged along the length direction of the fixing bracket, a slider is installed in the mounting groove, a locking bolt is installed on the slider, and the U-shaped mounting frame is connected and fixed to the fixing bracket by the locking bolt, so that the installation position of the U-shaped mounting frame can be adjusted as needed.

[0009] Compared with the prior art, the utility model has the following advantages: 1. Improved automation; 2. High processing accuracy, the manipulator can grab the same point on the front and back sides, and improved the consistency of the workpiece; 3. Wide adaptability and easy operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0011] Figure 2 It is an exploded view of the utility model;

[0012] Figure 3 yes Figure 1 Side view of

[0013] Figure 4 yes Figure 3 AA view;

[0014] Figure 5 It is a schematic diagram of the air pipe connection of the cylinder of the utility model;

[0015] In the figure: 1. fixing bracket; 2. mounting groove; 3. cylinder; 4. U-shaped mounting bracket; 5. buffer block; 6. stopper; 7. fastening bolt; 8. slider; 9. Y-shaped connector A; 10. Y-shaped connector B; 11. speed regulating valve; 12. inlet and outlet air connector A; 13. inlet and outlet air connector B. DETAILED DESCRIPTION

[0016] See also Figure 1-5 The present embodiment is an automatic re-grasping device for a bending machine, comprising a fixed bracket 1 made of aluminum profile, one end of the fixed bracket 1 is connected to the frame of the bending machine, a mounting groove 2 is provided on the fixed bracket 1 along the length direction, two sliders 8 are arranged in the mounting groove 2, and fastening bolts 7 are installed on the two sliders 8, and a detachable U-shaped mounting bracket 4 is connected by the fastening bolts 7. According to actual use requirements, the mounting position of the U-shaped mounting bracket 4 can be adjusted by adjusting the positions of the two sliders 8. The opening of the U-shaped mounting bracket 4 faces outward, and two cylinders 3 are installed on one side of the opening. The two cylinders 3 are arranged side by side in the vertical direction, and a buffer block 5 is installed at the outer end of the push rod of each cylinder 3. A stop block 6 is installed on the other side of the opening of the U-shaped mounting bracket 4 corresponding to each cylinder 3, and the stop block 6 corresponds to the position of the buffer block 5, and the linear drive mechanism is connected to the main control system signal of the bending machine.

[0017] Furthermore, each end of the two cylinders 3 is provided with an inlet and outlet air joint, the two inlet and outlet air joints at the same end are connected to the Y-shaped joint A through an air pipe, and the two inlet and outlet air joints at the other end are connected to the Y-shaped joint B through an air pipe, the Y-shaped joint A and the Y-shaped joint B are respectively connected to the external valve group and the air source, and a speed regulating valve 11 is also connected in series between the Y-shaped joint A or the Y-shaped joint B and the air source, and the speed regulating valve 11 is connected to the main control system of the bending machine.

[0018] When grasping a workpiece in this embodiment, the external valve group gives a signal, the Y-shaped connector B10 takes in air, so that the inlet and outlet air connectors A12 of the two cylinders 3 take in air, pushing the piston of the cylinder 3 to move, and at the same time, the inlet and outlet air connectors B13 of the cylinder 3 also exhaust air, and the exhaust air passes through the Y-shaped connector A9 and the speed regulating valve 11, and the exhaust rate is controlled by the speed regulating valve 11. In the process of pushing the piston of the cylinder 3, the two buffer blocks 5 finally press against the workpiece to be grasped, and the grasped workpiece is pushed to the stopper 6 by the buffer block 5, and the action of grasping the workpiece is completed at this time; When releasing the workpiece, the external valve group gives a signal, and the Y-shaped connector A9 takes in air. The air passes through the Y-shaped connector A9 and the speed regulating valve 11 so that the two inlet and outlet air joints B13 take in air. The air intake rate is controlled by the speed regulating valve 11 to push the piston of the cylinder 3 to move. At the same time, the inlet and outlet air joints A12 of the cylinder 3 are also exhausting. During the pushing of the piston of the cylinder 3, the buffer block 5 slowly moves away from the grasped workpiece and finally resets. At this time, the action of releasing the workpiece is completed.

Claims

1. An automatic re-grasping device for a bending machine, characterized by: It includes a fixed bracket, which is provided with a mounting groove, in which a detachable U-shaped mounting bracket is installed, the opening of the U-shaped mounting bracket faces outward, a linear drive mechanism is installed on one side of the opening, a push rod is installed on the output end of the linear drive mechanism, and a stopper is installed on the other side of the opening of the U-shaped mounting bracket, the position of the stopper and the push rod correspond, and the linear drive mechanism is connected to the main control system signal of the bending machine.

2. The automatic re-grasping device for a bending machine according to claim 1, characterized in that: The linear drive mechanism adopts a cylinder, and a buffer block is installed at the outer end of the push rod of the cylinder.

3. The automatic re-grasping device for a bending machine according to claim 2, characterized in that: The number of the cylinders is two, and the two cylinders are arranged side by side in the vertical direction. Two stoppers are correspondingly arranged on the other side of the opening of the U-shaped mounting frame.

4. The automatic re-grasping device for a bending machine according to claim 3 is characterized in that: An air inlet and outlet joint is provided at each end of the two cylinders. The two air inlet and outlet joints at the same end are connected to the Y-shaped joint A through an air pipe, and the two air inlet and outlet joints at the other end are connected to the Y-shaped joint B through an air pipe. The Y-shaped joint A and the Y-shaped joint B are respectively connected to an air source. A speed regulating valve is also connected in series between the Y-shaped joint A or the Y-shaped joint B and the air source, and the speed regulating valve is connected to the main control system of the bending machine.

5. The automatic re-grasping device for a bending machine according to claim 1, characterized in that: The fixing bracket is made of aluminum profile, the mounting groove is arranged along the length direction of the fixing bracket, a sliding block is installed in the mounting groove, a locking bolt is installed on the sliding block, and the U-shaped mounting frame is connected and fixed to the fixing bracket by the locking bolt.

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