Material pressing device for bending center

Abstract

The utility model discloses a material pressing device for a bending center, which is characterized in that one end of a transmission rod is hinged with a sliding seat, and the other end of the transmission rod is hinged with the output end of a first driving mechanism component and is driven by the first driving mechanism component to move back and forth, so that the sliding seat is driven to move up and down back and forth; the sliding base is driven to move back and forth in the up-down direction in the moving mode that the output end of the first driving mechanism assembly extends front and back, the output direction of the first driving mechanism assembly is changed through the transmission rod, and the size in the height direction is effectively reduced. The material pressing head and the fixing block are arranged at the lower end of the material pressing rod in a matched mode and wrap the ball head part, and the material pressing head and the fixing block can rotate around the ball head part, so that the material pressing head and the fixing block are matched with the ball head, and the angle of the material pressing head can be adjusted in a self-adaptive mode according to deformation of the installation base during pressing; therefore, the material pressing head assembly is always attached to the product, and the bending machining effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of bending equipment, in particular to a blank holding device for a bending center. Background Art

[0002] A bending machine is a machine capable of bending thin plates. Its structure mainly includes a frame, a hydraulic system, an electrical system, a slider mechanism, a synchronization mechanism, an upper and lower die mechanism, a back gauge, a front support frame, etc. The upper and lower die mechanism includes an upper pressing knife assembly and a lower bending die. According to different bending requirements, corresponding upper and lower bending dies are customized. Among them, the bending center is also a type of bending machine, and the bending center is mainly used in the bending process of large parts.

[0003] When the bending center is bending, it is necessary to press the product through a blank holding device; when pressing the product, the up-and-down pressing method is mainly adopted. The driving method of the blank holding head of the existing blank holding method for the bending center adopts a driving mechanism located above and a straight up-and-down driving method to drive the blank holding head to move downward to press the product. Such a structure will make the height of the blank holding device in the up-and-down direction relatively high, thus occupying more space, and the pressing angle of the blank holding head is fixed. When the blank holding device presses the workpiece, the C-shaped frame will deform due to the pressure, resulting in a certain angle between the upper blank holding head and the lower pressing palm, and it cannot ensure that the contact surface between the upper pressing head and the lower pressing palm is completely parallel, resulting in insufficient pressing force or even rubbing the plate, which will further affect the bending effect. Therefore, it is necessary to further improve the existing pressing device. Summary of the Utility Model

[0004] In view of this, in view of the deficiencies of the existing technology, the main purpose of the present utility model is to provide a blank holding device for a bending center, which can effectively solve the problems of large space occupation of the existing blank holding device, forming an angle with the product during pressing, and affecting the bending effect.

[0005] To achieve the above purpose, the present utility model adopts the following technical solutions:

[0006] A material pressing device for a bending center includes a mounting seat, a support platform, a slide, a first drive mechanism assembly, a transmission rod and a material pressing head assembly; the front end of the mounting seat is integrally recessed with a recess for matching the product; the support platform is arranged on the mounting seat and is located below the front end of the recess; the slide can be slid up and down on the mounting seat and is located above the support platform; the first drive mechanism assembly is arranged on the mounting seat, and the output end of the first drive mechanism assembly is movably arranged back and forth; one end of the transmission rod is hinged to the slide, and the other end of the transmission rod is hinged to the slide. It is hinged to the output end of the first driving mechanism assembly and is driven by the first driving mechanism assembly to move back and forth, thereby driving the slide to move back and forth; the pressing head assembly is arranged on the slide and moves back and forth with the slide, and the pressing head assembly is located directly above the support platform; the pressing head assembly includes a pressing rod, a pressing head and a fixed block; the upper end of the pressing rod is arranged on the slide, and the lower end of the pressing rod has a ball head; the pressing head and the fixed block are arranged at the lower end of the pressing rod and cover the ball head, and the pressing head and the fixed block can be arranged to rotate around the ball head.

[0007] As a preferred solution, the mounting seat is movably arranged on the external base through a second driving mechanism component; the second driving mechanism component is arranged on the base.

[0008] As a preferred solution, the mounting seat is provided with a slide rail extending forward and backward; the first drive mechanism assembly includes a motor and a slider; the motor is provided on the mounting seat and is located behind the slide rail; the slider cooperates with the slide rail and is driven by the motor to slide back and forth along the slide rail; the other end of the transmission rod is hinged to the slider and moves back and forth with the slider.

[0009] As a preferred solution, the pressing head assembly is rotatably arranged on the slide and slides up and down along with the slide.

[0010] As a preferred solution, a third driving mechanism is provided on the slide, and the pressing head assembly rotates back and forth under the drive of the third driving mechanism.

[0011] As a preferred solution, the fixed block is located above the pressing head, and a through slot is provided on the fixed block for the pressing rod to pass through, and the diameter of the through slot is larger than the diameter of the pressing rod.

[0012] As a preferred solution, the upper surface of the support platform is provided with an anti-slip surface.

[0013] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that:

[0014] One end of the transmission rod is hinged to the sliding seat, and the other end of the transmission rod is hinged to the output end of the first driving mechanism assembly and driven by the first driving mechanism assembly to move back and forth, thereby driving the sliding seat to move up and down. In this way, the sliding seat is driven to move back and forth in the up and down direction by the way of the output end of the first driving mechanism assembly extending back and forth. The output direction of the first driving mechanism assembly is changed through the transmission rod, effectively reducing the size in the height direction. And in cooperation with the pressure head and the fixing block are arranged at the lower end of the pressure rod and cover the spherical head, and the pressure head and the fixing block are rotatably arranged around the spherical head, so that the pressure head and the fixing block can be adaptively adjusted in angle according to the deformation of the mounting seat during pressing through the cooperation with the spherical head, thereby promoting the pressure head assembly to always fit with the product, ensuring the pressing force between the pressure head assembly and the product, and ensuring the bending processing effect.

[0015] To more clearly elaborate the structural features and functions of the present invention, the present invention will be described in detail below in conjunction with the drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of a preferred embodiment of the present invention;

[0017] Figure 2 is a partial assembly schematic diagram of a preferred embodiment of the present invention;

[0018] Figure 3 is a cross-sectional schematic diagram of the pressure head assembly in a preferred embodiment of the present invention;

[0019] Figure 4 is Figure 3 an enlarged schematic diagram of part A in

[0020] DESCRIPTION OF THE REFERENCE NUMERALS:

[0021] 10. Mounting seat 101. Relief groove

[0022] 11. Slide rail 20. Support table

[0023] 21. Anti-slip surface 30. Sliding seat

[0024] 31. Third driving mechanism 40. First driving mechanism assembly

[0025] 41. Motor 42. Slide block

[0026] 50. Transmission rod 60. Pressure head assembly

[0027] 601. Through groove 61. Pressure rod

[0028] 611. Spherical head 62. Pressure head

[0029] 63. Fixed rod 71, Second drive mechanism assembly

[0030] 72. Base Detailed implementation manner

[0031] Please refer to Figures 1 to 4 As shown, it shows the specific structure of the preferred embodiment of the present invention, which includes a mounting base 10, a support platform 20, a sliding seat 30, a first drive mechanism assembly 50, a transmission rod 40, and a pressure head assembly 60.

[0032] A recessed portion is integrally formed at the front end of the mounting base 10 inwardly for accommodating the product; in this embodiment, the mounting base 10 is arranged on an external base 72 through a second drive mechanism assembly 71 so as to be movable back and forth; the second drive mechanism assembly 71 is arranged on the base 72, so as to drive the mounting base 10 and the product clamped on the mounting base 10 to move back and forth through the second drive mechanism assembly 71. A sliding rail 11 extending in the front and back directions is arranged on the mounting base 10.

[0033] The support platform 20 is arranged on the mounting base 10 and is located below the front end of the recessed portion 101. In this embodiment, an anti-slip surface 21 is arranged on the upper surface of the support platform 20, and the anti-slip surface 21 is used to increase the friction between the support platform 20 and the product, so as to prevent relative sliding between the product and the support platform 20 after being pressed.

[0034] The sliding seat 30 is arranged on the mounting base 10 so as to be slidable up and down and is located above the support platform 20. In this embodiment, a third drive mechanism 31 is arranged on the sliding seat 30.

[0035] The first drive mechanism assembly 40 is arranged on the mounting base 10, and the output end of the first drive mechanism assembly 40 is arranged to be movable back and forth; in this embodiment, the first drive mechanism assembly 40 includes a motor 41 and a slider 42; the motor 41 is arranged on the mounting base 10 and is located behind the sliding rail 11; the slider 42 is matched with the sliding rail 11 and is driven by the motor 41 to slide back and forth along the sliding rail 11.

[0036] One end of the transmission rod 50 is hinged to the sliding seat 30, and the other end of the transmission rod 50 is hinged to the output end of the first drive mechanism assembly 40 and is driven by the first drive mechanism assembly 40 to move back and forth, so as to drive the sliding seat 30 to move up and down; through the arrangement of the transmission rod 50, the sliding seat 30 can be driven to move up and down by the first drive mechanism assembly 40 extending in the front and back directions, effectively reducing the overall height; in this embodiment, the other end of the transmission rod 50 is hinged to the slider 42 and moves back and forth along with the slider 42.

[0037] The blank holder assembly 60 is arranged on the slide block 30 and moves up and down with the slide block 30. The blank holder assembly 60 is located directly above the support table 20. The blank holder assembly 60 includes a blank holder rod 61, a blank holder head 62 and a fixing block 63. The upper end of the blank holder rod 61 is arranged on the slide block 30, and the lower end of the blank holder rod 61 has a spherical head 611. The blank holder head 62 and the fixing block 63 are arranged at the lower end of the blank holder rod 61 and cover the spherical head 611, and the blank holder head 62 and the fixing block 63 are rotatably arranged around the spherical head 611, so that the blank holder head 62 and the fixing block 63 can be adaptively adjusted in angle according to the actual situation, thus ensuring the contact area between the blank holder assembly 60 and the product, ensuring the pressing effect, and further ensuring the bending effect of the product. In this embodiment, the blank holder assembly 60 is rotatably arranged on the slide block 30 and slides up and down with the slide block 30, so that the blank holder assembly 60 can not only be adaptively adjusted in the pressing angle, but also rotate the angle of the pressing head according to the shape of the product, so as to meet the processing requirements of different products. The blank holder assembly 60 rotates back and forth driven by the third driving mechanism 31. The fixing block 63 is located above the blank holder head 62, and a through groove 601 for the blank holder rod 61 to pass through is formed in the fixing block 63. The diameter of the through groove 601 is larger than the diameter of the blank holder rod 61, so as to provide a certain range for the angle adjustment of the blank holder head 62 and the fixing block 63.

[0038] The design focus of the present utility model lies in that one end of the transmission rod is hinged to the slide block, and the other end of the transmission rod is hinged to the output end of the first driving mechanism assembly and is driven by the first driving mechanism assembly to move back and forth, thereby driving the slide block to move up and down, so that the slide block is driven to move back and forth in the up and down direction by the way of the front and back extension of the output end of the first driving mechanism assembly, and the output direction of the first driving mechanism assembly is changed through the transmission rod, effectively reducing the dimension in the height direction. And in cooperation with the blank holder head and the fixing block being arranged at the lower end of the blank holder rod and covering the spherical head, and the blank holder head and the fixing block being rotatably arranged around the spherical head, so that the blank holder head and the fixing block can, through the cooperation with the spherical head, adaptively adjust the angle of the blank holder head according to the deformation of the mounting seat during pressing, thus ensuring that the blank holder assembly is always in contact with the product, ensuring the pressing force between the blank holder assembly and the product, and ensuring the bending processing effect.

[0039] The above is only a preferred embodiment of the present utility model, and does not impose any limitation on the technical scope of the present utility model. Therefore, any minor modification, equivalent change and modification made to the above embodiment according to the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. A blank holding device for a bending center, characterized in that: The present invention comprises a mounting seat, a support platform, a slide seat, a first drive mechanism assembly, a transmission rod and a press head assembly; the front end of the mounting seat is integrally concave with a recessed groove that matches the product; the support platform is arranged on the mounting seat and is located below the front end of the recessed groove; the slide seat can be slid up and down on the mounting seat and is located above the support platform; the first drive mechanism assembly is arranged on the mounting seat, and the output end of the first drive mechanism assembly is movably arranged back and forth; one end of the transmission rod is hinged to the slide seat, and the other end of the transmission rod is hinged to the first drive mechanism The output end of the structural assembly is hinged and driven by the first driving mechanism assembly to move back and forth, thereby driving the slide to move back and forth; the pressing head assembly is arranged on the slide and moves back and forth with the slide, and the pressing head assembly is located directly above the support platform; the pressing head assembly includes a pressing rod, a pressing head and a fixed block; the upper end of the pressing rod is arranged on the slide, and the lower end of the pressing rod has a ball head; the pressing head and the fixed block are arranged at the lower end of the pressing rod and cover the ball head, and the pressing head and the fixed block can be arranged to rotate around the ball head.

2. The blank holding device for the bending center according to claim 1, characterized in that: The mounting seat can be movably arranged on the external base back and forth through a second driving mechanism component; the second driving mechanism component is arranged on the base.

3. The blank holding device for the bending center according to claim 1, characterized in that: The mounting seat is provided with a slide rail extending forward and backward; the first driving mechanism assembly includes a motor and a slider; the motor is provided on the mounting seat and is located behind the slide rail; the slider cooperates with the slide rail and is driven by the motor to slide back and forth along the slide rail; the other end of the transmission rod is hinged to the slider and moves back and forth with the slider.

4. The blank holding device for the bending center according to claim 1, wherein: The pressing head assembly can be rotatably arranged on the slide seat and can slide up and down along with the slide seat.

5. The blank holding device for the bending center according to claim 4, characterized in that: The slide is provided with a third driving mechanism, and the pressing head assembly rotates back and forth under the drive of the third driving mechanism.

6. The blank holding device for the bending center according to claim 1, wherein: The fixed block is located above the pressing head. A through slot for the pressing rod to pass through is provided on the fixed block. The diameter of the through slot is greater than the diameter of the pressing rod.

7. The blank holding device for the bending center according to claim 1, characterized in that: The upper surface of the support platform is provided with an anti-slip surface.

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