Impact-resistant high-precision rear material blocking mechanism of bending machine

Abstract

The utility model relates to the field of bending machines, in particular to an impact-resistant high-precision rear material blocking mechanism of a bending machine, which comprises a transverse plate. First bearing seats are fixedly connected to the left edge and the right edge of one side of the transverse plate, and a first lead screw body is rotationally installed between the two first bearing seats. The first servo motor drives the first lead screw to achieve horizontal position adjustment, the second servo motor drives the second lead screw to achieve vertical height adjustment, the machining parameter requirements of sheet metal parts of different materials and thicknesses can be quickly responded, the diversified production requirements are met, the lifting mechanism and the moving block are connected in a split mode, and the machining efficiency is improved. The lifting mechanism is convenient to disassemble, maintain or replace, and the problems that when an existing rear material blocking mechanism of the bending machine is used, enough flexibility is lacked, and the machining requirements of metal plate materials of different materials and different thicknesses cannot be met are solved.

Description

Technical Field

[0001] This utility model belongs to the field of bending machines, specifically relating to a high-precision, impact-resistant back gauge mechanism for bending machines. Background Technology

[0002] With the rapid development of modern manufacturing, sheet metal processing technology has become an indispensable part of industrial production. As an important component of sheet metal processing equipment, the performance improvement of bending machines is of great significance for improving production efficiency and reducing production costs. However, during the bending process, the back gauge mechanism often bears huge pressure and impact, which places extremely high demands on the durability and precision of the back gauge mechanism.

[0003] Traditional back gauge mechanisms for bending machines typically employ relatively simple structures and materials, such as cast iron and steel plates. While these materials possess a certain strength and rigidity, they often experience deformation and wear when subjected to impacts and abrasions during high-speed, high-frequency processing. This leads to decreased precision and can even affect product quality and processing efficiency. Existing back gauge mechanisms for bending machines lack sufficient flexibility in use and cannot adapt to the processing needs of sheet metal materials of different materials and thicknesses.

[0004] Therefore, an impact-resistant, high-precision back gauge mechanism for bending machines is proposed, which has sufficient flexibility to adapt to the processing needs of sheet metal materials of different materials and thicknesses. Utility Model Content

[0005] To overcome the problem that the existing back gauge mechanism of the bending machine lacks sufficient flexibility and cannot adapt to the processing needs of sheet metal materials of different materials and thicknesses, an impact-resistant and high-precision back gauge mechanism for bending machines is proposed.

[0006] The technical solution of this utility model is as follows: a high-precision, impact-resistant bending machine back gauge mechanism, including a horizontal plate; a first bearing seat is fixedly connected to the left and right edges of one side of the horizontal plate, a first lead screw body is rotatably installed between the two first bearing seats, a first servo motor is fixedly connected to the side end of one of the first bearing seats, the output shaft of the first servo motor is fixedly connected to one end of the first lead screw body, a first lead screw nut is installed on the side wall of the first lead screw body, a moving block is fixedly connected to the side end of the first lead screw nut, a second lead screw nut is fixedly connected to the side end of the moving block, a lifting mechanism for lifting is provided on the second lead screw nut, a first limiting mechanism for guiding the moving block is provided on one side of the horizontal plate, and a second limiting mechanism for guiding the lifting mechanism is provided on the side wall of the moving block.

[0007] Preferably, the lifting mechanism includes a vertical plate, a second bearing seat, a second servo motor, a second lead screw body, and a mounting groove; the second lead screw body is threaded onto the inner wall of the second lead screw nut, the vertical plate is fixed to the side wall of the second lead screw nut, the second bearing seat is fixed to the upper part of the side of the vertical plate near the horizontal plate, the second servo motor is fixed to the upper end of the second bearing seat, the second lead screw body is rotatably mounted on the inner wall of the second bearing seat, and the lower end of the output shaft of the second servo motor is fixed to the upper end of the second lead screw body.

[0008] Preferably, the first limiting mechanism includes a first guide rail and a first slider. The first guide rail is fixedly connected to the upper part of one side of the horizontal plate, and the first slider is fixedly connected to the side of the moving block near the horizontal plate. The first slider is slidably disposed on the side wall of the first guide rail.

[0009] Preferably, the second limiting mechanism includes a second slider and a second guide rail; the second slider is fixedly connected to the side of the moving block near the vertical plate, the second guide rail is fixedly connected to the side of the vertical plate near the moving block, and the second slider is slidably disposed on the side wall of the second guide rail.

[0010] Preferably, the thickness of the cross plate is 25 mm, and the material of the cross plate is high-strength hard alloy.

[0011] Preferably, the thickness of the upright plate is 25 mm, and the material of the upright plate is high-strength hard alloy.

[0012] Preferably, the thickness of the second guide rail is 32 mm and the diameter of the second lead screw body is 32 mm.

[0013] The beneficial effects of this utility model are:

[0014] 1. It achieves flexible adaptation to processing needs under multiple working conditions. The first servo motor drives the first lead screw to achieve horizontal position adjustment, and the second servo motor drives the second lead screw to achieve vertical height adjustment. It can quickly respond to the processing parameter requirements of sheet metal parts of different materials and thicknesses, and meet diverse production needs. The lifting mechanism and the moving block adopt a split connection, which is convenient for disassembly, maintenance or replacement of the lifting mechanism. It solves the problem that the existing back gauge mechanism of the bending machine lacks sufficient flexibility and cannot adapt to the processing needs of sheet metal materials of different materials and thicknesses.

[0015] 2. It achieves dual limit guidance. The first limit mechanism (first guide rail and slider) constrains the horizontal displacement trajectory of the moving block, and the second limit mechanism (second guide rail and slider) restricts the swing of the lifting mechanism. The dual guidance mechanism eliminates the risk of off-center load in the screw drive and ensures the stability of horizontal and vertical bidirectional movement. In addition, the horizontal plate and vertical plate are made of 25mm thick high-strength hard alloy. Combined with the 32mm thickness of the second guide rail and the 32mm diameter of the second screw body, the overall structural rigidity is significantly enhanced, which can withstand high frequency and high impact loads and improve service life. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of the impact-resistant, high-precision bending machine back gauge mechanism of this utility model.

[0017] Figure 2 The diagram shows a three-dimensional structural schematic of the lifting mechanism of the back gauge mechanism of the impact-resistant high-precision bending machine of this utility model.

[0018] Figure 3 The diagram shows a three-dimensional structural schematic of the first limiting mechanism of the back gauge mechanism of the impact-resistant high-precision bending machine of this utility model.

[0019] Figure 4 The diagram shows a three-dimensional structural schematic of the second limiting mechanism of the impact-resistant, high-precision bending machine back gauge mechanism of this utility model.

[0020] The labels in the attached diagram are as follows: 1. Horizontal plate; 2. First bearing seat; 3. First lead screw body; 4. First servo motor; 5. First lead screw nut; 6. Moving block; 7. Second lead screw nut; 8. Lifting mechanism; 81. Vertical plate; 82. Second bearing seat; 83. Second servo motor; 84. Second lead screw body; 85. Mounting groove; 9. First guide rail; 10. First slider; 11. Second slider; 12. Second guide rail. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please see Figures 1-4 This utility model provides an embodiment of an impact-resistant, high-precision bending machine back gauge mechanism, comprising a horizontal plate 1; a first bearing seat 2 is fixedly connected to the left and right edges of one side of the horizontal plate 1, a first lead screw body 3 is rotatably mounted between the two first bearing seats 2, a first servo motor 4 is fixedly connected to the side end of one of the first bearing seats 2, the output shaft of the first servo motor 4 is fixedly connected to one end of the first lead screw body 3, a first lead screw nut 5 is installed on the side wall of the first lead screw body 3, a moving block 6 is fixedly connected to the side end of the first lead screw nut 5, a second lead screw nut 7 is fixedly connected to the side end of the moving block 6, a lifting mechanism 8 for lifting is provided on the second lead screw nut 7, a first limiting mechanism for guiding the moving block 6 is provided on one side of the horizontal plate 1, and a second limiting mechanism for guiding the lifting mechanism 8 is provided on the side wall of the moving block 6.

[0023] The two-dimensional precise positioning of the back gauge is achieved through the coordinated control of the first lead screw body 3 (horizontal direction) and the lifting mechanism 8 (vertical direction). The rigid connection design of the horizontal plate 1 and the moving block 6 enhances the impact resistance of the overall structure. The first servo motor 4, the first lead screw body 3, and the lifting mechanism 8 are arranged in layers, resulting in a compact structure that is easy to maintain.

[0024] Please see Figure 1 and Figure 2 In this embodiment, the lifting mechanism 8 includes a vertical plate 81, a second bearing seat 82, a second servo motor 83, a second lead screw body 84, and a mounting groove 85. The second lead screw body 84 is threaded onto the inner wall of the second lead screw nut 7. The vertical plate 81 is fixed to the side wall of the second lead screw nut 7. The second bearing seat 82 is fixed to the upper part of the side of the vertical plate 81 near the horizontal plate 1. The second servo motor 83 is fixed to the upper end of the second bearing seat 82. The second lead screw body 84 is rotatably mounted on the inner wall of the second bearing seat 82. The lower end of the output shaft of the second servo motor 83 is fixed to the upper end of the second lead screw body 84. The second servo motor 83 drives the second lead screw body 84. Combined with the stable support of the second bearing seat 82, it ensures that there is no deviation during the lifting process. The second servo motor 83 is directly connected to the second lead screw body 84, which reduces transmission loss and has a fast response speed. The vertical plate 81 fixes the second bearing seat 82 and the second lead screw nut 7, which can distribute the vertical load and avoid local stress concentration.

[0025] Please see Figure 1 and Figure 3 In this embodiment, the first limiting mechanism includes a first guide rail 9 and a first slider 10. The first guide rail 9 is fixedly connected to the upper part of one side of the horizontal plate 1, and the first slider 10 is fixedly connected to the side of the moving block 6 near the horizontal plate 1. The first slider 10 is slidably disposed on the side wall of the first guide rail 9. Through the cooperation of the first guide rail 9 and the first slider 10, the horizontal movement trajectory of the moving block 6 is restricted, preventing the first lead screw body 3 from bearing lateral force, and improving the stability of the moving block 6 when moving in the horizontal direction.

[0026] Please see Figure 1 and Figure 4 In this embodiment, the second limiting mechanism includes a second slider 11 and a second guide rail 12; the second slider 11 is fixedly connected to the side of the moving block 6 near the vertical plate 81, and the second guide rail 12 is fixedly connected to the side of the vertical plate 81 near the moving block 6. The second slider 11 is slidably disposed on the side wall of the second guide rail 12. The second slider 11 and the second guide rail 12 constrain the swing of the lifting mechanism 8 and improve the vertical movement stability. In addition, the second guide rail 12 and the first guide rail 9 form a cross limiting, which can enhance the vibration resistance of the mechanism.

[0027] Please see Figure 1 In this embodiment, the thickness of the horizontal plate 1 is 25 mm, and the material of the horizontal plate 1 is high-strength hard alloy. The 25 mm thick high-strength hard alloy horizontal plate 1 can withstand the high-frequency impact load of the bending machine and avoid bending deformation.

[0028] Please see Figure 1 and Figure 2In this embodiment, the thickness of the upright plate 81 is 25 mm, and the material of the upright plate 81 is high-strength hard alloy. The 25 mm thick upright plate 81 can provide stable support and ensure the vertical accuracy of the second lead screw body 84.

[0029] Please see Figure 1 and Figure 4 In this embodiment, the thickness of the second guide rail 12 is 32 mm, and the diameter of the second lead screw body 84 is 32 mm. The 32 mm thick second guide rail 12 and the 32 mm diameter second lead screw body 84 can increase the upper limit of the lifting mechanism 8. The large diameter lead screw and the thickened guide rail can effectively resist lateral torque and torsional stress.

[0030] Working principle: This back gauge mechanism achieves high-precision two-dimensional positioning through the coordinated drive of horizontal and vertical dual lead screws and a dual limit design. The specific usage method is as follows:

[0031] By turning on the first servo motor 4, the first lead screw body 3 is driven to rotate around the axis of the two first bearing seats 2. The first lead screw nut 5 moves horizontally along the first lead screw body 3 as the lead screw rotates, driving the moving block 6 to move synchronously. The first guide rail 9 and the first slider 10 form a sliding pair, which constrains the moving block 6 to move only in the horizontal direction, thus preventing the first lead screw body 3 from bearing lateral force.

[0032] A 25mm thick horizontal plate 1 (high-strength hard alloy) serves as a rigid base to resist impact loads during bending operations and prevent overall deformation.

[0033] The second servo motor 83 drives the second lead screw body 84 to rotate, which in turn drives the second lead screw nut 7 and the fixed vertical plate 81 to rise and fall vertically. The second bearing seat 82 is fixed on the upper part of the vertical plate 81 to provide rotational support for the second lead screw body 84 and eliminate lifting and falling sway. The second slider 11 cooperates with the second guide rail 12 to limit the swing error during the lifting and falling process.

[0034] The 25mm thick vertical plate 81 disperses the vertical load and prevents the second lead screw body 84 from deforming due to excessive local stress. The first guide rail 9 (horizontal guide) and the second guide rail 12 (vertical guide) are arranged in a cross pattern to form a two-way limiting network to suppress vibration transmission.

[0035] The second lead screw body 84 (diameter 32mm) is designed to match the second guide rail 12 (thickness 32mm) to improve the resistance to lateral torque and withstand high-intensity torsional stress.

[0036] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A high-precision, impact-resistant bending machine back gauge mechanism, comprising a horizontal plate (1); characterized in that: A first bearing seat (2) is fixedly connected to the left and right edges of one side of the horizontal plate (1). A first lead screw body (3) is rotatably installed between the two first bearing seats (2). A first servo motor (4) is fixedly connected to the side end of one of the first bearing seats (2). The output shaft of the first servo motor (4) is fixedly connected to one end of the first lead screw body (3). A first lead screw nut (5) is installed on the side wall of the first lead screw body (3). A moving block (6) is fixedly connected to the side end of the first lead screw nut (5). A second lead screw nut (7) is fixedly connected to the side end of the moving block (6). A lifting mechanism (8) for lifting is provided on the second lead screw nut (7). A first limiting mechanism for guiding the moving block (6) is provided on one side of the horizontal plate (1). A second limiting mechanism for guiding the lifting mechanism (8) is provided on the side wall of the moving block (6). The lifting mechanism (8) includes a vertical plate (81), a second bearing seat (82), and a first servo motor (4). Two servo motors (83), a second lead screw body (84), and a mounting groove (85); the inner wall of the second lead screw nut (7) is threaded with the second lead screw body (84), the side wall of the second lead screw nut (7) is fixed with a vertical plate (81), the upper part of the side of the vertical plate (81) near the horizontal plate (1) is fixed with a second bearing seat (82), the upper end of the second bearing seat (82) is fixed with the second servo motor (83), the second lead screw body (84) is rotatably disposed on the inner wall of the second bearing seat (82), and the lower end of the output shaft of the second servo motor (83) is fixed to the upper end of the second lead screw body (84); the first limiting mechanism includes a first guide rail (9) and a first slider (10), the upper part of one side of the horizontal plate (1) is fixed with the first guide rail (9), the side of the moving block (6) near the horizontal plate (1) is fixed with the first slider (10), and the first slider (10) is slidably disposed on the side wall of the first guide rail (9).

2. The impact-resistant, high-precision bending machine back gauge mechanism according to claim 1, characterized in that: The second limiting mechanism includes a second slider (11) and a second guide rail (12); the second slider (11) is fixedly connected to the side of the moving block (6) near the vertical plate (81), and the second guide rail (12) is fixedly connected to the side of the vertical plate (81) near the moving block (6), and the second slider (11) is slidably disposed on the side wall of the second guide rail (12).

3. The impact-resistant, high-precision bending machine back gauge mechanism according to claim 1, characterized in that: The thickness of the horizontal plate (1) is 25 mm, and the material of the horizontal plate (1) is high-strength hard alloy.

4. The impact-resistant, high-precision bending machine back gauge mechanism according to claim 1, characterized in that: The thickness of the upright plate (81) is 25 mm, and the material of the upright plate (81) is high-strength hard alloy.

5. The impact-resistant, high-precision bending machine back gauge mechanism according to claim 1, characterized in that: The thickness of the second guide rail (12) is 32 mm, and the diameter of the second lead screw body (84) is 32 mm.

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