Compensation device of bending machine

Abstract

The utility model discloses a bending machine compensation device which comprises a lower die base, a compensation base is installed below the lower die base, reinforcing rods are connected to the front side face and the rear side face of the compensation base, and connecting plates are arranged on the outer sides of the reinforcing rods in a sleeved mode. Mounting frames are mounted on the left side face and the right side face of the compensation base correspondingly, servo motors are mounted on the rear sides of the mounting frames, the output ends of the servo motors are connected with bidirectional lead screws, and the outer sides of the bidirectional lead screws are in threaded connection with connecting plates. According to the compensation device of the bending machine, a bidirectional lead screw is controlled to rotate, a connecting plate is driven to move relatively, the connecting plate slides on a reinforcing rod, the reinforcing rod supports the connecting plate, force acting on the bidirectional lead screw is reduced, the connecting plate moves to control a supporting frame to push a moving seat to move, and the moving seat pushes an upper adjusting rod and a lower adjusting rod to rotate and unfold; therefore, the inner compensation plate and the abutting plate are controlled to be unfolded to abut against the upper die base and the compensation base correspondingly, and bending deflection compensation is conducted on the lower die base.

Description

Technical Field

[0001] The utility model relates to the technical field of bending machines, in particular to a compensation device for bending machines. Background Art

[0002] When the press brake bends the workpiece, the worktable will be deformed under the action of the bending force due to long-term pressure, resulting in the depth of the upper die entering the lower die opening being inconsistent along the entire length of the workpiece, affecting the accuracy of the workpiece. The press brake compensation device is used to offset the impact of this deformation and improve the bending accuracy.

[0003] At present, the compensation device of the bending machine drives the inclined slider to move to press and support the lower die base at the workbench, and compensates for its bending deflection. The bearing capacity of the components of the compensation workbench is often concentrated on the driving components, which can easily cause damage and deformation of the driving components and affect the compensation adjustment effect of the workbench bending deflection. Utility Model Content

[0004] The purpose of the present utility model is to provide a compensation device for a bending machine to solve the problem raised in the above background technology that the bearing capacity of the compensation and adjustment components of the bending deflection in the current market is often concentrated on the driving component, which can easily cause damage and deformation of the driving component and affect the compensation and adjustment effect of the bending deflection of the workbench.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a compensation device for a bending machine, comprising a lower die base, a compensation base installed below the lower die base, a front and rear side surfaces of the compensation base are connected to reinforcement rods, and a connecting plate is sleeved on the outer side of the reinforcement rod;

[0006] Mounting brackets are installed on both the left and right sides of the compensation seat, a servo motor is installed on the rear side of the mounting bracket, an output end of the servo motor is connected to a bidirectional screw rod, an outer side of the bidirectional screw rod is threadedly connected to a connecting plate, and a support bracket is installed on the side of the connecting plate close to the compensation seat;

[0007] A side compensation plate is installed at the upper end of the support frame, and a movable seat is installed at the lower end of the support frame. The upper and lower ends of the movable seat are respectively hinged with an upper adjustment rod and a lower adjustment rod. The upper end of the upper adjustment rod is hinged with an inner compensation plate, and the lower end of the lower adjustment rod is hinged with a pressure plate.

[0008] Preferably, the thread distribution directions of the front and rear sections of the bidirectional screw are opposite, and the sections of the bidirectional screw with opposite thread distribution directions are both threadedly connected to a connecting plate.

[0009] Preferably, the support frame is a side "U"-shaped structure, and the lower end of the support frame slides through the side wall of the compensation seat.

[0010] Preferably, the inner compensation plate and the pressure plate are evenly spaced and distributed inside the compensation seat, the inner compensation plate fits with the bottom of the lower die seat, and the pressure plate fits with the bottom surface inside the compensation seat.

[0011] Preferably, the position of the inner compensation plate and the position of the pressure plate are set in one-to-one correspondence, and a flexible compensation adjustment component consisting of two groups of movable seats, an upper adjustment rod and a lower adjustment rod is symmetrically distributed between the inner compensation plate and the pressure plate.

[0012] Preferably, the side compensation plates are evenly distributed on the side surfaces of the lower die base, and the side compensation plates and the movable base are connected via a support frame.

[0013] Preferably, the connecting plate and the reinforcement rod form a sliding structure, and the position of the reinforcement rod is staggered with the position of the support frame.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] (1) The bending machine compensation device drives the relative movement of the connecting plate by controlling the rotation of the bidirectional screw, and the connecting plate slides on the reinforcement rod, and the reinforcement rod supports the connecting plate to reduce the force acting on the bidirectional screw, and the movement of the connecting plate controls the support frame to push the moving seat to move, and the moving seat pushes the upper adjustment rod and the lower adjustment rod to rotate and unfold, thereby controlling the inner compensation plate and the pressure plate to unfold and press the upper die seat and the compensation seat respectively, and performing bending deflection compensation on the lower die seat, and the force of the bending deflection compensation is dispersed on the compensation seat, further avoiding the concentration of force on the drive component, reducing damage to the drive component, and improving the stability of the bending deflection compensation;

[0016] (2) The compensation device of the bending machine can synchronously drive the side compensation plate to move, so that the side compensation plate fits and presses against the side wall of the lower die base, compensating the bending deflection of the lower die base from the side position, thereby reducing the impact of the deformation of the lower die base on the thin plate bending process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the connecting plate of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the mobile seat of the utility model;

[0021] Figure 5 This is a schematic diagram of the internal compensation plate structure of the utility model.

[0022] In the figure: 1. Lower die base; 2. Compensation base; 3. Servo motor; 4. Bidirectional screw; 5. Connecting plate; 6. Support frame; 7. Moving base; 8. Upper adjustment rod; 9. Lower adjustment rod; 10. Inner compensation plate; 11. Pressure plate; 12. Side compensation plate; 13. Reinforcement rod; 14. Mounting frame. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-Figure 5 The utility model provides the following technical solutions: a compensation device for a bending machine includes a lower die base 1, a compensation base 2 is installed below the lower die base 1, mounting brackets 14 are installed on the left and right sides of the compensation base 2, a servo motor 3 is installed on the rear side of the mounting bracket 14, the output end of the servo motor 3 is connected to a bidirectional screw rod 4, the outer side of the bidirectional screw rod 4 is threadedly connected to a connecting plate 5, and a support bracket 6 is installed on the side of the connecting plate 5 close to the compensation base 2;

[0025] Furthermore, the front and rear sections of the bidirectional screw 4 have threads arranged in opposite directions, and the sections of the bidirectional screw 4 with threads arranged in opposite directions are both threadedly connected to a connecting plate 5, and the rotation of the bidirectional screw 4 controls the connecting plate 5 to move in opposite directions simultaneously;

[0026] The upper end of the support frame 6 is mounted with a side compensation plate 12, and the lower end of the support frame 6 is mounted with a movable seat 7;

[0027] Furthermore, the support frame 6 is a side "U"-shaped structure, and the lower end of the support frame 6 slides through the side wall of the compensation seat 2, so that the support frame 6 can move smoothly and avoid the compensation seat 2 obstructing the support frame 6;

[0028] The upper and lower ends of the movable seat 7 are respectively hinged with an upper adjusting rod 8 and a lower adjusting rod 9. The upper end of the upper adjusting rod 8 is hinged with an inner compensation plate 10, and the lower end of the lower adjusting rod 9 is hinged with a pressure plate 11.

[0029] Furthermore, the inner compensation plate 10 and the pressure plate 11 are evenly spaced and distributed inside the compensation seat 2. The inner compensation plate 10 fits the bottom of the lower die seat 1, and the pressure plate 11 fits the bottom surface of the inner portion of the compensation seat 2. The inner compensation plate 10 is used to compensate the bending flexibility of the lower die seat 1 in the vertical direction, and the pressure of the pressure plate 11 and the compensation seat 2 can make the force point on the compensation seat 2 when compensating the bending machine.

[0030] Furthermore, the position of the inner compensation plate 10 and the position of the pressure plate 11 are set in a one-to-one correspondence. Two sets of flexible compensation adjustment components consisting of a movable seat 7, an upper adjustment rod 8, and a lower adjustment rod 9 are symmetrically distributed between the inner compensation plate 10 and the pressure plate 11. The inner compensation plate 10 and the pressure plate 11 can be flexibly unfolded to support the lower mold base 1;

[0031] Furthermore, the side compensation plates 12 are evenly distributed on the side surfaces of the lower die base 1, and the side compensation plates 12 and the movable base 7 are connected via the support frame 6, so that the side compensation plates 12 and the movable base 7 can move synchronously, and the side compensation plates 12 are used to compensate for the bending flexibility of the side walls of the lower die base 1;

[0032] The front and rear sides of the compensation seat 2 are connected with reinforcement rods 13, and the outer side of the reinforcement rods 13 is provided with a connecting plate 5;

[0033] Furthermore, the connecting plate 5 and the reinforcing rod 13 form a sliding structure, and the position of the reinforcing rod 13 is staggered with the position of the support frame 6. The reinforcing rod 13 is used to provide multi-point support for the connecting plate 5, further dispersing the force acting on the drive assembly composed of the servo motor 3 and the bidirectional screw 4;

[0034] Specifically, the thin plate is placed on the lower die base 1, and the upper die base of the bending machine is used to press the thin plate downward to perform bending processing on the thin plate. The servo motor 3 is powered on to control the rotation of the bidirectional screw rod 4 connected to the output end. The bidirectional screw rod 4 controls the relative movement of the connecting plate 5 connected by the outer thread. The connecting plate 5 slides on the reinforcement rod 13, and the reinforcement rod 13 is used to support the connecting plate 5 at multiple points, thereby controlling the movement of the support frame 6 connected to the connecting plate 5. The two symmetrically distributed groups of support frames 6 move relative to each other, and the support frame 6 pushes the moving seat 7 installed at the lower end to move. The movable seat 7 pushes the upper adjustment rod 8 and the lower adjustment rod 9 hinged on the upper and lower sides to rotate, and the upper adjustment rod 8 and the lower adjustment rod 9 push the inner compensation plate 10 and the pressure plate 11 hinged at the ends to move away from each other, and the inner compensation plate 10 is in contact with the compensation seat 2, and the pressure plate 11 is in contact with the inner bottom surface of the compensation seat 2. The unfolded pressure plate 11, the lower adjustment rod 9, the movable seat 7, the upper adjustment rod 8 and the inner compensation plate 10 are used to compensate for the bending deflection of the lower die base 1. The evenly distributed inner compensation plates 10 can compensate for the bending deflection of the lower die base 1 at multiple positions;

[0035] When the support frame 6 moves, the side compensation plate 12 installed on the upper end is synchronously controlled to move. The side compensation plate 12 moves toward the side wall of the lower die base 1 until the side compensation plate 12 is in contact with the side wall of the lower die base 1. The side compensation plate 12 presses and supports the side wall of the lower die base 1, compensates for the bending deflection of the lower die base 1 from the side position, and reduces the influence of the deformation of the lower die base 1 on the thin plate bending process. The contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

Claims

1. A compensating device for a bending machine, comprising a lower die base (1), characterized in that: A compensation seat (2) is installed below the lower die seat (1), and the front and rear side surfaces of the compensation seat (2) are connected to reinforcement rods (13), and the outer side of the reinforcement rod (13) is sleeved with a connecting plate (5); The left and right sides of the compensation seat (2) are both equipped with mounting brackets (14), the rear side of the mounting bracket (14) is equipped with a servo motor (3), the output end of the servo motor (3) is connected to a bidirectional screw rod (4), the outer side of the bidirectional screw rod (4) is threadedly connected to a connecting plate (5), and a support bracket (6) is installed on the side of the connecting plate (5) close to the compensation seat (2); The upper end of the support frame (6) is equipped with a side compensation plate (12), the lower end of the support frame (6) is equipped with a movable seat (7), the upper and lower ends of the movable seat (7) are respectively hinged with an upper adjustment rod (8) and a lower adjustment rod (9), the upper end of the upper adjustment rod (8) is hinged with an inner compensation plate (10), and the lower end of the lower adjustment rod (9) is hinged with a pressure plate (11).

2. The bending machine compensation device according to claim 1, characterized in that: The front and rear sections of the bidirectional screw rod (4) have threads distributed in opposite directions, and the sections of the bidirectional screw rod (4) with threads distributed in opposite directions are both threadedly connected to a connecting plate (5).

3. The bending machine compensation device according to claim 1, characterized in that: The support frame (6) is a side "U"-shaped structure, and the lower end of the support frame (6) slides through the side wall of the compensation seat (2).

4. The bending machine compensation device according to claim 1, characterized in that: The inner compensation plate (10) and the pressure plate (11) are evenly spaced and distributed inside the compensation seat (2); the inner compensation plate (10) is in contact with the bottom of the lower die seat (1); and the pressure plate (11) is in contact with the bottom surface inside the compensation seat (2).

5. The bending machine compensation device according to claim 1, characterized in that: The position of the inner compensation plate (10) and the position of the pressure plate (11) are set in a one-to-one correspondence, and a flexible compensation adjustment component consisting of two groups of movable seats (7), an upper adjustment rod (8), and a lower adjustment rod (9) is symmetrically distributed between the inner compensation plate (10) and the pressure plate (11).

6. The bending machine compensation device according to claim 1, characterized in that: The side compensation plates (12) are evenly distributed on the side surfaces of the lower die base (1), and the side compensation plates (12) and the movable base (7) are connected via a support frame (6).

7. The bending machine compensation device according to claim 1, characterized in that: The connecting plate (5) and the reinforcing rod (13) form a sliding structure, and the position of the reinforcing rod (13) is staggered with the position of the supporting frame (6).

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