Main shaft screw rod braking device of pure electric bending machine

Abstract

The utility model discloses a pure electric bending machine main shaft lead screw braking device, which relates to the field of bending machine main shaft lead screw braking, and comprises a bending machine main body, a mounting box is fixedly mounted at the top of the bending machine main body, and a driving mechanism is mounted in the mounting box. A braking mechanism for braking the driving mechanism is mounted in the mounting box, and the output end of the driving mechanism is connected with a bending part which is connected with the bending machine main body in an up-down sliding manner; the driving mechanism comprises a driving wheel connected to the output end of a servo motor, the servo motor is installed on the inner wall of the installation box through an installation frame, a rotating disc is rotatably installed on the inner wall of the installation box, and the driving wheel is in transmission connection with the rotating disc through a transmission belt. According to the high-power servo motor, the braking mechanism is arranged, and the braking mechanism is used for braking and limiting the driving mechanism when the servo motor stops running, so that the use cost of the high-power servo motor is reduced.

Description

Technical Field

[0001] The utility model relates to the field of brakes for a main shaft screw of a bending machine, in particular to a brake device for a main shaft screw of a pure electric bending machine. Background Art

[0002] Since the upper slider of the pure electric servo bending machine is heavy, the brake uses the brake device of the high-power AC servo motor itself to stop the screw from running and prevent the upper slider from falling down due to its own weight. This results in a larger motor shape and limited installation size, making the main structure design of the bending machine too complicated. At the same time, the high-power AC servo motor is more expensive, which is not conducive to the market promotion and popularization of pure electric servo bending machines. Utility Model Content

[0003] The purpose of the present invention is to provide a pure electric bending machine spindle screw brake device in order to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solution: a pure electric bending machine spindle screw brake device, comprising a bending machine body, a mounting box fixedly mounted on the top of the bending machine body, a driving mechanism mounted inside the mounting box, a braking mechanism for braking the driving mechanism mounted inside the mounting box, and a bending portion connected to the bending machine body in an up-and-down sliding manner at the output end of the driving mechanism;

[0005] The driving mechanism includes a driving wheel connected to the output end of the servo motor. The servo motor is installed on the inner wall of the installation box through a mounting frame. A rotating disk is rotatably installed on the inner wall of the installation box. The driving wheel and the rotating disk are connected through a transmission belt.

[0006] As a further solution of the present invention: the braking mechanism includes a cylinder installed inside the mounting box, a brake rubber pad is fixedly installed on the end of the output shaft of the cylinder, and a return spring is installed between one end of the brake rubber pad close to the cylinder and the end of the cylinder sleeve.

[0007] As a further solution of the present invention: the driving mechanism also includes a screw rod fixedly connected to the bottom end of the rotating disk, the outer wall of the screw rod is connected to a screw rod seat, and the screw rod seat is fixedly connected to the bending part.

[0008] As a further solution of the present invention: a slider is fixedly installed on the inner side of the bending portion, a guide rail is fixedly installed on the inner wall of the bending machine body, and the slider is connected to the inner wall of the guide rail in an up-and-down sliding manner.

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] 1. By setting a braking mechanism, the braking mechanism will brake and limit the driving mechanism when the servo motor stops running, thereby reducing the use cost of the high-power servo motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural diagram of the utility model;

[0012] Figure 2 This is a schematic diagram of the internal structure of the installation box of the utility model;

[0013] Figure 3 For the utility model Figure 2 A partial enlarged view of the middle part;

[0014] Figure 4 This is a schematic diagram of the connection between the screw rod and the rotating disk of the utility model;

[0015] Figure 5 For the utility model Figure 4 A partial enlarged view of point B in the middle.

[0016] In the figure: 1. Bending machine body; 2. Mounting box; 3. Bending part; 4. Driving wheel; 5. Rotating plate; 6. Transmission belt; 7. Cylinder; 8. Screw; 9. Brake rubber pad; 10. Return spring. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] See also Figures 1 to 5 In an embodiment of the utility model, a pure electric bending machine spindle screw brake device includes a bending machine body 1, a mounting box 2 is fixedly installed on the top of the bending machine body 1, a driving mechanism is installed inside the mounting box 2, and a braking mechanism for braking the driving mechanism is installed inside the mounting box 2. The output end of the driving mechanism is connected to a bending part 3 that is connected to the bending machine body 1 for sliding up and down; the driving mechanism includes a driving wheel 4 connected to the output end of the servo motor, the servo motor is installed on the inner wall of the mounting box 2 through a mounting frame, and a rotating disk 5 is rotatably installed on the inner wall of the mounting box 2, and the driving wheel 4 and the rotating disk 5 are connected through a transmission belt 6.

[0019] In this embodiment, when a metal sheet needs to be bent, the driving mechanism inside the mounting box 2 is activated, and the brake mechanism releases the lock on the driving mechanism. The running servo motor drives the driving wheel 4 at its output end to rotate, and the driving wheel 4 drives the rotating disk 5 to rotate via the transmission belt 6. The rotating disk 5 drives the bending portion 3 to move downward via the screw rod 8. The downwardly moving bending portion 3 presses the surface of the metal sheet, causing the metal sheet to be bent.

[0020] After the bending is completed, the servo motor is controlled to run in reverse through the control panel. At this time, the driving mechanism rotates in the opposite direction to realize the upward movement of the bending part 3. When the bending part 3 is reset, the braking mechanism extends to squeeze the surface of the rotating disk 5 of the Shajie mechanism, thereby limiting the rotation of the rotating disk 5 and achieving a braking effect.

[0021] Please refer to Figure 3 、 Figure 4 and Figure 5 The braking mechanism includes a cylinder 7 installed inside the mounting box 2, a brake rubber pad 9 is fixedly installed on the end of the output shaft of the cylinder 7, and a return spring 10 is installed between one end of the brake rubber pad 9 close to the cylinder 7 and the end of the cylinder 7 sleeve.

[0022] In this embodiment: when the servo motor is running, the cylinder 7 is shortened, and the cylinder 7 drives the brake rubber pad 9 to separate from the rotating disk 5. During this process, the return spring 10 is compressed. When the servo motor stops running, the cylinder 7 is extended, and the return spring 10 is reset. The brake rubber pad 9 is tightly attached to the surface of the rotating disk 5, and the driving mechanism is braked and limited.

[0023] Please refer to Figure 2 and Figure 4 The driving mechanism also includes a screw rod 8 fixedly connected to the bottom end of the rotating disk 5, the outer wall of the screw rod 8 is connected to a screw rod seat, the screw rod seat is fixedly connected to the bending part 3, a slider is fixedly installed on the inner side of the bending part 3, and a guide rail is fixedly installed on the inner wall of the bending machine body 1, and the slider slides up and down and is connected to the inner wall of the guide rail.

[0024] In this embodiment, when the screw rod 8 rotates, the bending portion 3 cannot rotate due to the limitation of the guide rail and the slider, and the screw rod seat moves in the up and down directions.

[0025] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pure electric bending machine spindle screw brake device, comprising a bending machine body (1), a mounting box (2) fixedly mounted on the top of the bending machine body (1), characterized in that: A driving mechanism is installed inside the installation box (2), a braking mechanism for braking the driving mechanism is installed inside the installation box (2), and an output end of the driving mechanism is connected to a bending portion (3) that is slidably connected to the bending machine body (1) up and down; The driving mechanism comprises a driving wheel (4) connected to the output end of the servo motor, the servo motor is mounted on the inner wall of the installation box (2) via a mounting frame, a rotating disk (5) is rotatably mounted on the inner wall of the installation box (2), and the driving wheel (4) and the rotating disk (5) are connected in transmission via a transmission belt (6).

2. The pure electric bending machine spindle screw brake device according to claim 1 is characterized in that: The braking mechanism comprises a cylinder (7) installed inside the mounting box (2), a brake rubber pad (9) is fixedly installed on the end of the output shaft of the cylinder (7), and a return spring (10) is installed between one end of the brake rubber pad (9) close to the cylinder (7) and the end of the sleeve of the cylinder (7).

3. The pure electric bending machine spindle screw brake device according to claim 2, characterized in that: The driving mechanism further comprises a screw rod (8) fixedly connected to the bottom end of the rotating disk (5), the outer wall of the screw rod (8) is connected to a screw rod seat, and the screw rod seat is fixedly connected to the bending portion (3).

4. The pure electric bending machine spindle screw brake device according to claim 3 is characterized in that: A slider is fixedly installed on the inner side of the bending portion (3), a guide rail is fixedly installed on the inner wall of the bending machine body (1), and the slider is connected to the inner wall of the guide rail in an up-and-down sliding manner.

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