Anti-unbalance loading mechanism applied to bending machine

Abstract

The utility model relates to the technical field of bending machines, in particular to an unbalance loading prevention mechanism applied to a bending machine, which comprises two groups of disc spring fixing supports which are respectively fixed on two sides of a bending machine main body, disc spring shafts penetrate through the disc spring fixing supports, upper flat washers are arranged at the tops of the disc spring shafts, and lower flat washers are arranged at the bottoms of the disc spring fixing supports. The periphery of the disc spring shaft is sleeved with a disc spring, and an upper pressing plate installed on the Y-axis sliding block is arranged above the disc spring. The Y-axis sliding block and the upper pressing plate move downwards to extrude the disc spring shaft downwards, and the disc spring reversely applies counter-acting force to the Y-axis sliding block, so that the Y-axis sliding block has the buffering function, prevents the Y-axis from overtravel, can relieve the unbalance loading condition under the influence of the counter-acting force, improves the unbalance loading prevention effect, greatly improves the use condition of a machine tool, and is good in application environment.

Description

Technical Field

[0001] The utility model relates to the technical field of bending machines, in particular to an anti-eccentric load mechanism applied to bending machines. Background Art

[0002] The Y-axis slider of the bending machine is driven by a servo motor that transmits power to the slider and the upper bending die through a lead screw, and cooperates with the lower die seat to bend the plate. When the bending position is not centered, it will cause an eccentric load. The existing structure for preventing eccentric loads in bending machines only has an anti-eccentric load function. However, when the Y-axis slider moves downward rapidly under the drive of the servo motor, due to the inertia of the slider's own weight and the high-speed operation of the servo motor, it is easy to cause a slight overtravel of the Y-axis, and the bending of the workpiece at an excessive angle, which seriously affects production efficiency and product quality. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and propose to design an anti-eccentric load mechanism for a bending machine, which not only has the function of anti-eccentric load, but also can effectively avoid the problem of Y-axis overtravel.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] An anti-eccentric load mechanism applied to a bending machine comprises a disc spring fixing bracket, wherein two groups of the disc spring fixing brackets are arranged and are respectively fixed on both sides of a bending machine body; a disc spring shaft passes through the disc spring fixing bracket, an upper flat washer is arranged on the top of the disc spring shaft, a disc spring is sleeved on the outer periphery of the disc spring shaft, an upper pressure plate installed on a Y-axis slider is arranged above the disc spring, the Y-axis slider and the upper pressure plate move downward and squeeze the disc spring shaft downward, and after reaching the working position, the disc spring is squeezed, and the disc spring gives a reaction force to the Y-axis slider in the reverse direction, which plays a buffering role and prevents the Y-axis from overtravel. At the same time, due to the reaction force of the disc spring, the eccentric load can be reduced and the anti-eccentric load effect is improved.

[0006] Furthermore, the upper flat washer on the top of the disc spring shaft is fixed to the upper pressure plate, and when the upper pressure plate moves up and down, the disc spring shaft is driven to move up and down relative to the disc spring fixing bracket. The disc spring shaft plays a guiding role for the upper pressure plate.

[0007] Furthermore, the disc spring shaft passes through the upper pressure plate, and the upper flat washer is located on the upper surface of the upper pressure plate to prevent the disc spring shaft from falling off the upper pressure plate.

[0008] Furthermore, the upper flat washer is located on the disc spring and supported by the disc spring. The upper pressure plate is located above the upper flat washer and squeezes the upper flat washer during the downward movement of the upper pressure plate.

[0009] Furthermore, a lower flat washer is provided at the bottom of the disc spring shaft to prevent the disc spring shaft from falling off from the disc spring fixing bracket when the disc spring shaft moves upward.

[0010] Furthermore, the disc spring fixing bracket is fixed to the main body by screws.

[0011] Furthermore, the upper pressing plate is fixed on the Y-axis slider via a mounting seat.

[0012] Furthermore, a through hole is provided on the disc spring fixing bracket, and the disc spring shaft is vertically arranged and passes through the through hole, and the outer diameter of the disc spring shaft is the same as the inner diameter of the through hole.

[0013] Technical effects of the utility model:

[0014] Compared with the prior art, the utility model is an anti-eccentric load mechanism applied to a bending machine. The disc spring is squeezed by the upper pressure plate, and the disc spring gives a reaction force to the Y-axis slider in the reverse direction, so that it has a buffering effect to prevent the Y-axis from overtravel, and can reduce the eccentric load under the influence of the reaction force, thereby improving the anti-eccentric load effect, greatly improving the use conditions of the machine tool, and having a good application environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the installation structure diagram of the anti-eccentric load mechanism of the utility model applied to the bending machine;

[0016] Figure 2 This is a structural diagram of a first feasible implementation of the anti-eccentric load mechanism of the utility model applied to a bending machine;

[0017] Figure 3 This is a structural diagram of a second feasible implementation of the utility model for an anti-eccentric load mechanism applied to a bending machine;

[0018] Figure 4 This is a structural diagram of a third feasible implementation of the utility model for an anti-eccentric load mechanism applied to a bending machine.

[0019] In the figure, 1. main body; 2. disc spring fixing bracket; 3. disc spring shaft; 4. disc spring; 5. upper flat washer; 6. Y-axis slider; 7. upper pressure plate; 8. lower flat washer; 9. mounting seat. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is clearly and completely described below in conjunction with the accompanying drawings of the specification.

[0021] Embodiment 1:

[0022] like Figure 1 As shown, this embodiment involves an anti-eccentric load mechanism applied to a bending machine, including a disc spring fixing bracket 2, a disc spring shaft 3, a disc spring 4 and an upper pressure plate 7.

[0023] The disc spring fixing bracket 2 is provided with two groups, which are respectively fixed to the two sides of the bending machine body 1 by screws, and the disc spring fixing bracket 2 is penetrated by a disc spring shaft 3. Specifically, a through hole is opened on the disc spring fixing bracket 2, and the disc spring shaft 3 is vertically arranged and passes through the through hole. The outer diameter of the disc spring shaft 3 is the same as the inner diameter of the through hole to improve stability.

[0024] An upper flat washer 5 is arranged on the top of the disc spring shaft 3, a disc spring 4 is sleeved on the outer periphery of the disc spring shaft 3, an upper pressure plate 7 is arranged above the disc spring 4, and the upper pressure plate 7 is fixed on the Y-axis slider 6 through a mounting seat 9; the bending upper die is installed on the Y-axis slider 6, and the Y-axis slider 6 can move up and down along the slide rail on the main body 1. The Y-axis slider 6 and the upper pressure plate 7 move downward, pressing the disc spring shaft 3 downward, and after reaching the working position, the disc spring 4 is pressed, and the disc spring 4 gives a reaction force to the Y-axis slider 6 in the reverse direction, which plays a buffering role on the one hand and can reduce the unbalanced load on the other hand. A lower flat washer 8 is arranged at the bottom of the disc spring shaft 3 to prevent the disc spring shaft 3 from falling off from the disc spring fixing bracket 2 when it moves upward.

[0025] The disc spring shaft 3 and the upper pressure plate 7 can adopt one of the following implementations:

[0026] As a first feasible implementation method, Figure 2 As shown, the upper flat washer 5 at the top of the disc spring shaft 3 is fixed on the upper pressure plate 7. When the upper pressure plate 7 moves up and down, it drives the disc spring shaft 3 to move up and down relative to the disc spring fixing bracket 2. The disc spring shaft 3 guides the upper pressure plate 7 to ensure that the bending position is centered, further preventing the occurrence of eccentric loading.

[0027] As a second feasible implementation method, Figure 3 As shown, the disc spring shaft 3 passes through the upper pressing plate 7, and the upper flat washer 5 is located on the upper surface of the upper pressing plate 7 to prevent the disc spring shaft 3 from falling off the upper pressing plate 7. The disc spring shaft 3 guides the upper pressing plate 7 to ensure that the bending position is centered, further preventing the occurrence of eccentric loading.

[0028] As a third feasible implementation method, Figure 4 As shown, the upper flat washer 5 is located on the disc spring 4 and is supported by the disc spring 4. The upper pressure plate 7 is located above the upper flat washer 5. The upper pressure plate 7 squeezes the upper flat washer 5 during its downward movement.

[0029] When the Y-axis slider 6 of the utility model moves downward rapidly under the drive of the servo motor, it approaches the bending position of the plate, and the disc spring 4 is subjected to pressure, which gives a reaction force to the Y-axis slider 6 in the reverse direction, playing a buffering role. Due to the reaction force of the disc spring 4, the eccentric load situation can be reduced, the anti-eccentric load effect can be improved, and the use conditions of the machine tool can be improved. After the Y-axis slider 6 is bent, it moves upward rapidly, and the disc spring 4 is not subjected to force and returns to a free state. For workpiece processing, especially for processing some smaller workpieces, the utility model can still ensure that the bending position is centered to avoid eccentric load situation.

[0030] The above-mentioned specific implementation methods are only specific cases of the present utility model. The patent protection scope of the present utility model includes but is not limited to the above-mentioned specific implementation methods. Any appropriate changes or modifications made to them by ordinary technicians in the relevant technical field in accordance with the claims of the present utility model shall fall within the patent protection scope of the present utility model.

Claims

1. An anti-eccentric load mechanism applied to a bending machine, characterized in that: The invention comprises a disc spring fixing bracket (2), wherein two groups of the disc spring fixing bracket (2) are arranged and are respectively fixed on two sides of a bending machine body (1); a disc spring shaft (3) passes through the disc spring fixing bracket (2); an upper flat washer (5) is arranged on the top of the disc spring shaft (3); a disc spring (4) is sleeved on the outer periphery of the disc spring shaft (3); and an upper pressure plate (7) installed on a Y-axis slider (6) is arranged above the disc spring (4).

2. The anti-eccentric load mechanism for a bending machine according to claim 1, characterized in that: The upper flat washer (5) at the top of the disc spring shaft (3) is fixed on the upper pressure plate (7).

3. The anti-eccentric load mechanism for a bending machine according to claim 1 is characterized in that: The disc spring shaft (3) passes through the upper pressure plate (7), and the upper flat washer (5) is located on the upper surface of the upper pressure plate (7).

4. The anti-eccentric load mechanism for a bending machine according to claim 1, characterized in that: The upper flat washer (5) is located on the disc spring (4) and is supported by the disc spring (4). The upper pressure plate (7) is located above the upper flat washer (5).

5. The anti-eccentric load mechanism for a bending machine according to any one of claims 1 to 4, characterized in that: A lower flat washer (8) is provided at the bottom of the disc spring shaft (3).

6. The anti-eccentric load mechanism for a bending machine according to claim 1, characterized in that: The disc spring fixing bracket (2) is fixed to the main body (1) by means of screws.

7. The anti-eccentric load mechanism for a bending machine according to claim 1, characterized in that: The upper pressing plate (7) is fixed on the Y-axis slider (6) via a mounting seat (9).

8. The anti-eccentric load mechanism for a bending machine according to any one of claims 1 to 4, 6 and 7, characterized in that: A through hole is provided on the disc spring fixing bracket (2), and the disc spring shaft (3) is vertically arranged and passes through the through hole. The outer diameter of the disc spring shaft (3) is the same as the inner diameter of the through hole.

Images