Sheet metal workpiece bending device

Abstract

The utility model relates to the technical field of sheet metal machining, in particular to a sheet metal workpiece bending device which comprises a hydraulic machine and a workbench arranged at the bottom of the hydraulic machine, the tail end of an output shaft of the hydraulic machine is fixedly connected with an installation shell, and a servo motor is installed on one side of the installation shell. The tail end of an output shaft of the servo motor is fixedly connected with a positive and negative tooth lead screw penetrating through one side of the mounting shell, the outer side of the positive and negative tooth lead screw is spirally connected with two symmetrically-arranged threaded sleeves, the outer sides of the threaded sleeves are fixedly connected with mounting blocks, and the bottoms of the mounting blocks are fixedly connected with first spring telescopic rods. According to the metal plate bending device, by means of the structure composed of the first spring telescopic rods, the positioning plates and the like, when the movable die gradually conducts hydraulic pressure in the direction towards the fixed die, the positioning plates can act on a metal plate to be bent to position the metal plate, the distance between the symmetrically-arranged positioning plates can be changed, and therefore metal plates of different sizes can be positioned.

Description

Technical Field

[0001] The utility model relates to the technical field of sheet metal processing, in particular to a sheet metal processing part bending device. Background Art

[0002] Sheet metal parts are workpieces made by cutting, bending, splicing and welding metal sheets. The stamping and bending process of sheet metal parts is to place the metal sheet on the fixed die of the sheet metal bending device, and the movable die moves downward to squeeze the metal sheet so that the metal sheet fits the fixed die and bends the metal sheet.

[0003] When a sheet metal workpiece bending device is used to press and bend a sheet metal, if the sheet metal cannot be well positioned, displacement may occur during the bending of the sheet metal, which may affect the bending effect of the sheet metal. Therefore, a sheet metal workpiece bending device is proposed to address the above problem. Utility Model Content

[0004] The purpose of the utility model is to provide a sheet metal workpiece bending device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A sheet metal processing part bending device comprises a hydraulic press and a workbench arranged at the bottom of the hydraulic press, the end of the output shaft of the hydraulic press is fixedly connected to a mounting shell, a servo motor is installed on one side of the mounting shell, the end of the output shaft of the servo motor is fixedly connected to a positive and negative threaded rod penetrating one side of the mounting shell, the outer side of the positive and negative threaded rod is spirally connected to two symmetrically arranged screw sleeves, the outer side of the screw sleeve is fixedly connected to a mounting block, the bottom of the mounting block is fixedly connected to a first spring telescopic rod, the end of the first spring telescopic rod away from the mounting block is fixedly connected to a positioning plate, the bottom of the mounting shell is provided with a symmetrically arranged slideway, the first spring telescopic rod penetrates the slideway and slides on the inside of the slideway, the bottom of the mounting shell is fixedly connected to a movable mold, and the upper end surface of the workbench is fixedly connected to a fixed mold corresponding to the movable mold.

[0007] Preferably, an elastic anti-slip pad is fixedly connected to the lower end surface of the positioning plate.

[0008] Preferably, one end of the forward and reverse screw rods away from the output shaft of the servo motor is rotatably connected to a positioning block, and the positioning block is fixedly connected to the inner wall of the mounting shell.

[0009] Preferably, a guide block is fixedly connected to one side of the mounting block, a guide rod is slidably connected to the inner side of the guide block, and both ends of the guide rod are respectively fixedly connected to the inner wall of the mounting shell.

[0010] Preferably, a guide groove is provided on the inner side of the fixed mold, a second spring telescopic rod is fixedly connected to the inner side of the guide groove, a slider is fixedly connected to the top of the second spring telescopic rod, a connecting spring is sleeved on the outer side of the second spring telescopic rod, two ends of the connecting spring are respectively fixedly connected to the inner wall of the guide groove and the lower end surface of the slider, and the slider slides on the inner side of the guide groove.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. In the utility model, through the structure composed of the servo motor, positive and negative threaded screws, screw sleeve, mounting block, first spring telescopic rod and positioning plate, when the movable mold is gradually hydraulically moved toward the fixed film direction, the positioning plate will act on the sheet metal to be bent to position it, and the servo motor can be started so that the rotating shaft of the servo motor drives the positive and negative threaded screws to rotate, the positive and negative threaded screws drive the screw sleeve to rotate, and the screw sleeve drives the mounting block to move. Under the guidance of the guide rod, the mounting block drives the first spring telescopic rod to slide on the inner side of the slideway, and the first spring telescopic rod drives the positioning plate to move, thereby changing the distance between the symmetrically arranged positioning plates, so that sheet metals of different sizes can be positioned.

[0013] 2. In the utility model, through the structure composed of the guide groove, the second spring telescopic rod, the connecting spring and the slider, when the movable mold acts on the sheet metal placed on the top of the fixed mold, as the movable mold is gradually pressed down, the sheet metal will act on the slider, so that the slider slides inside the guide groove, and the slider acts on the second spring telescopic rod and the connecting spring, compressing the second spring telescopic rod and the connecting spring, so that the movable mold can stably act on the sheet metal to bend it. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 For this utility model Figure 1 A schematic diagram of the structure at A;

[0016] Figure 3 For this utility model Figure 1 Schematic diagram of the structure at B;

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the installation shell of the utility model.

[0018] In the figure: 1. hydraulic press; 2. mounting housing; 3. servo motor; 4. positive and negative threaded screws; 5. screw sleeves; 6. mounting blocks; 7. first spring telescopic rod; 8. positioning plate; 9. elastic anti-skid pad; 10. positioning block; 11. guide block; 12. guide rod; 13. slideway; 14. movable mold; 15. fixed mold; 16. guide groove; 17. second spring telescopic rod; 18. connecting spring; 19. slider; 20. workbench. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0021] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps described in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0022] See attached Figure 1-4 , the utility model provides a technical solution:

[0023] A sheet metal workpiece bending device comprises a hydraulic press 1 and a workbench 20 arranged at the bottom of the hydraulic press 1, wherein the end of the output shaft of the hydraulic press 1 is fixedly connected to a mounting shell 2, a servo motor 3 is installed on one side of the mounting shell 2, the end of the output shaft of the servo motor 3 is fixedly connected to a positive and negative threaded rod 4 penetrating one side of the mounting shell 2, the outer side of the positive and negative threaded rod 4 is spirally connected to two symmetrically arranged screw sleeves 5, the outer side of the screw sleeve 5 is fixedly connected to a mounting block 6, the bottom of the mounting block 6 is fixedly connected to a first spring telescopic rod 7, the end of the first spring telescopic rod 7 away from the mounting block 6 is fixedly connected to a positioning plate 8, a symmetrically arranged slideway 13 is provided at the bottom of the mounting shell 2, the first spring telescopic rod 7 penetrates the slideway 13 and slides inside the slideway 13, a movable mold 14 is fixedly connected to the bottom of the mounting shell 2, and a fixed mold 15 corresponding to the movable mold 14 is fixedly connected to the upper end surface of the workbench 20.

[0024] The lower end surface of the positioning plate 8 is fixedly connected with an elastic anti-skid pad 9. This arrangement increases the friction between the positioning plate 8 and the sheet metal through the elastic anti-skid pad 9, so that the positioning plate 8 can stably position the sheet metal. The end of the positive and negative threaded rod 4 away from the output shaft of the servo motor 3 is rotatably connected with a positioning block 10. The positioning block 10 is fixedly connected to the inner wall of the mounting shell 2, so that the end of the positive and negative threaded rod 4 away from the output shaft of the servo motor 3 is positioned, and the positive and negative threaded rod 4 can rotate stably. A guide block 11 is fixedly connected to one side of the mounting block 6, and a guide rod 12 is slidably connected to the inner side of the guide block 11. The two ends of the guide rod 12 are respectively fixedly connected to the inner wall of the mounting shell 2, so that the mounting block 6 can be driven by the screw sleeve 5 to perform stable relative movement under the cooperation of the guide block 11 and the guide rod 12. A guide groove 16 is provided on the inner side of the fixed mold 15, and a second spring telescopic rod 17 is fixedly connected to the inner side of the guide groove 16, and a slider 19 is fixedly connected to the top of the second spring telescopic rod 17. A connecting spring 18 is sleeved on the outer side of the second spring telescopic rod 17, and both ends of the connecting spring 18 are respectively fixedly connected to the inner wall of the guide groove 16 and the lower end surface of the slider 19, and the slider 19 slides on the inner side of the guide groove 16. This arrangement allows the movable mold 14 to stably act on the sheet metal to bend it.

[0025] The working process of the utility model is as follows: when the sheet metal processing part bending device is used to bend the sheet metal, the servo motor 3 is started, so that the rotating shaft of the servo motor 3 drives the positive and negative screw rods 4 to rotate, and the positive and negative screw rods 4 will rotate relative to the positioning block 10, and the positive and negative screw rods 4 drive the screw sleeve 5 to rotate, and the screw sleeve 5 drives the mounting block 6 to move, and the mounting block 6 drives the guide block 11 to move, and the guide block 11 and the guide rod 12 move relative to each other. Under the guidance of the guide rod 12, the mounting block 6 drives the first spring telescopic rod 7 to slide on the inner side of the slide 13, and the first spring telescopic rod 7 drives the positioning plate 8 to move, thereby changing the distance between the symmetrically arranged positioning plates 8, so that sheet metals of different sizes can be positioned. After the adjustment is completed, the sheet metal is placed on the top of the fixed die 15 on the workbench 20, and then the hydraulic press 1 is started. The hydraulic press 1 will drive the mounting shell 1 and the movable die 14 to move in the direction close to the fixed die 15. When the movable die 14 acts on the sheet metal, as the hydraulic press 1 is driven, the movable die 14 continues to move, and the sheet metal acts on the slider 19, so that the slider 19 slides inside the guide groove 16, and the slider 19 acts on the second spring telescopic rod 17 and the connecting spring 18, causing compression to the second spring telescopic rod 17 and the connecting spring 18, so that the movable die 14 can stably act on the sheet metal to bend it; and as the movable die 14 gradually moves toward the direction of the fixed die 15, the positioning plate 8 and the elastic anti-skid pad 9 will act on the sheet metal to be bent to position it. As the movable die 14 gradually descends, the first spring telescopic rod 7 will be compressed, and the elastic anti-skid pad 9 will increase the friction between the positioning plate 8 and the sheet metal, so that the positioning plate 8 can stably position the sheet metal.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sheet metal workpiece bending device, comprising a hydraulic press (1) and a workbench (20) arranged at the bottom of the hydraulic press (1), characterized in that: The end of the output shaft of the hydraulic press (1) is fixedly connected to a mounting housing (2), a servo motor (3) is installed on one side of the mounting housing (2), the end of the output shaft of the servo motor (3) is fixedly connected to a positive and negative threaded rod (4) that passes through one side of the mounting housing (2), the outer side of the positive and negative threaded rod (4) is spirally connected to two symmetrically arranged screw sleeves (5), the outer side of the screw sleeve (5) is fixedly connected to a mounting block (6), the bottom of the mounting block (6) is fixedly connected to a first spring telescopic rod (7), one end of the first spring telescopic rod (7) away from the mounting block (6) is fixedly connected to a positioning plate (8), the bottom of the mounting housing (2) is provided with a symmetrically arranged slideway (13), the first spring telescopic rod (7) passes through the slideway (13) and slides inside the slideway (13), the bottom of the mounting housing (2) is fixedly connected to a movable mold (14), and the upper end surface of the workbench (20) is fixedly connected to a fixed mold (15) corresponding to the movable mold (14).

2. A sheet metal workpiece bending device according to claim 1, characterized in that: An elastic anti-slip pad (9) is fixedly connected to the lower end surface of the positioning plate (8).

3. The sheet metal workpiece bending device according to claim 1, characterized in that: One end of the forward and reverse threaded rod (4) away from the output shaft of the servo motor (3) is rotatably connected to a positioning block (10), and the positioning block (10) is fixedly connected to the inner wall of the mounting housing (2).

4. The sheet metal workpiece bending device according to claim 1, characterized in that: A guide block (11) is fixedly connected to one side of the mounting block (6), a guide rod (12) is slidably connected to the inner side of the guide block (11), and both ends of the guide rod (12) are respectively fixedly connected to the inner wall of the mounting shell (2).

5. The sheet metal workpiece bending device according to claim 1, characterized in that: A guide groove (16) is provided on the inner side of the fixed mold (15); a second spring telescopic rod (17) is fixedly connected to the inner side of the guide groove (16); a slider (19) is fixedly connected to the top of the second spring telescopic rod (17); a connecting spring (18) is sleeved on the outer side of the second spring telescopic rod (17); two ends of the connecting spring (18) are respectively fixedly connected to the inner wall of the guide groove (16) and the lower end surface of the slider (19); and the slider (19) slides inside the guide groove (16).

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