A sheet metal positioning structure for sheet metal bending

Abstract

This utility model discloses a sheet metal positioning structure for sheet metal bending, including a worktable with a bending seat on the worktable. The upper surface of the bending seat has a bending groove. A feeding conveyor belt and a discharging conveyor belt are respectively arranged on the front and rear sides of the worktable. A mounting frame is arranged on the worktable, and a hydraulic cylinder is arranged on the top of the mounting frame. A bending head corresponding to the bending seat is installed at the bottom of the movable end of the hydraulic cylinder. A fixing frame is arranged on the mounting frame. By positioning and fixing the sheet metal parts, problems such as bending dimension deviation, irregular shape, and increased scrap rate caused by inaccurate positioning of the sheet metal parts can be avoided. Compared with the traditional fixed positioning structure, this device uses a motor-driven screw to realize the synchronous opposite movement of the positioning plates. The spacing between the positioning plates can be quickly adjusted according to the sheet metal parts of different sizes, which greatly enhances the versatility and adaptability of the equipment, is easy to adjust, and improves production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal bending processing technology, specifically a sheet metal positioning structure for sheet metal bending. Background Technology

[0002] Sheet metal processing is a common metalworking technique that involves shaping thin metal sheets, profiles, and tubes into parts of specific shapes, sizes, and precision using manual or mechanical methods. It typically requires subsequent processing steps such as cutting and bending to ultimately obtain the desired parts.

[0003] In the field of sheet metal bending, traditional positioning structures usually have the following shortcomings: most of the positioning devices in the existing technology are fixed structures, and the entire positioning device needs to be replaced for sheet metal parts of different sizes. This not only increases production costs, but also prolongs changeover time and reduces production efficiency. Utility Model Content

[0004] The technical problem this invention aims to solve is to overcome existing defects and provide a sheet metal positioning structure for sheet metal bending. By fixing the positioning plate, it can avoid problems such as bending dimension deviation, irregular shape, and increased scrap rate caused by inaccurate positioning of sheet metal parts. Compared with the traditional fixed positioning structure, this device uses a motor-driven screw to realize the synchronous opposite movement of the positioning plates. The spacing between the positioning plates can be quickly adjusted according to sheet metal parts of different sizes, which greatly enhances the versatility and adaptability of the equipment, makes adjustment convenient, improves production efficiency, and can effectively solve the problems in the background technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sheet metal positioning structure for sheet metal bending, comprising a worktable, a bending seat on the worktable, a bending groove on the upper surface of the bending seat, a feeding conveyor belt and a discharging conveyor belt on the front and rear sides of the worktable respectively; a mounting frame on the worktable, a hydraulic cylinder on the top of the mounting frame, and a bending head corresponding to the bending seat installed at the bottom of the movable end of the hydraulic cylinder; a fixing frame on the mounting frame, two first sliding grooves symmetrically opened on the upper surface of the fixing frame, a first slider slidably arranged in each of the two first sliding grooves, a positioning plate for positioning the sheet metal installed on the lower side of the first slider, a driving screw rotatably arranged in the two first sliding grooves, the thread directions of the driving screws in the two first sliding grooves being opposite, a screw hole corresponding to the driving screw being opened on the side surface of the first slider, and a reduction motor installed on the side surface of the fixing frame, the output shaft of the reduction motor passing through the first sliding groove and connected to the driving screw through a coupling.

[0006] As a preferred technical solution of this utility model, a second sliding groove is provided on the lower surface of the first slider, and a second slider is slidably disposed in the second sliding groove. The positioning plate and the second slider are integrally formed.

[0007] As a preferred technical solution of this utility model, a through groove is provided on the side surface of the connection between the positioning plate and the second slider, and a screw hole is provided on the inner surface of the through groove. The screw hole is internally threaded to a fixing bolt for fixing the position of the second slider and the positioning plate.

[0008] As a preferred embodiment of this utility model, the inner surface of the second slide groove is provided with a plurality of fixing screw holes corresponding to the fixing bolts.

[0009] As a preferred embodiment of this utility model, the side surface of the first slider is uniformly provided with scale lines, and the upper surface of the positioning plate is fixedly provided with a pointer corresponding to the scale lines.

[0010] As a preferred embodiment of this utility model, the cross-sectional shape of the second groove and the second slider is T-shaped.

[0011] As a preferred embodiment of this utility model, a number of ribs are installed on the side surface of the positioning plate away from the bending seat.

[0012] Compared with existing technologies, the advantages of this invention are as follows: The sheet metal part to be bent is moved to the bending seat by a feeding conveyor belt. Then, a geared motor drives a drive screw to rotate, which in turn drives two first sliders and a positioning plate to move synchronously in opposite directions, pushing the sheet metal part to be bent to the center of the bending seat and fixing it in place. A hydraulic cylinder then drives the bending head to press down on the sheet metal part, which is then bent into the corresponding shape by conforming to the bending groove of the bending seat. The positioning and fixing by the positioning plate avoids problems such as bending dimension deviation, irregular shape, and increased scrap rate caused by inaccurate positioning of the sheet metal part. Compared with traditional fixed positioning structures, this device uses a motor-driven screw to achieve synchronous movement of the positioning plates, allowing for quick adjustment of the positioning plate spacing according to different sheet metal parts, greatly enhancing the equipment's versatility and adaptability, and effectively improving the accuracy and efficiency of bending processing. At the same time, the simple installation structure of the positioning plate facilitates replacement and maintenance as needed, further reducing production costs and operational difficulty, providing a more reliable, efficient, and accurate positioning solution for sheet metal bending processing. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a front view structural diagram of the present utility model;

[0015] Figure 3 This is a side view of the structure of this utility model;

[0016] Figure 4This is a structural schematic diagram of the fixing frame of this utility model.

[0017] In the diagram: 1. Workbench, 2. Feed conveyor belt, 3. Discharge conveyor belt, 4. Mounting frame, 5. Hydraulic cylinder, 6. Bending head, 7. Bending seat, 8. Fixing frame, 9. First slide rail, 10. First slider, 11. Gear motor, 12. Drive screw, 13. Positioning plate, 14. Second slide rail, 15. Fixing bolt, 16. Fixing screw hole, 17. Rib plate, 18. Scale line, 19. Pointer. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-4 This utility model provides a technical solution: a sheet metal positioning structure for sheet metal bending, including a worktable 1. The worktable 1 is equipped with a bending seat 7, which can be replaced according to the bending process requirements. A bending groove is formed on the upper surface of the bending seat 7. A feeding conveyor belt 2 and a discharging conveyor belt 3 are respectively arranged on the front and rear sides of the worktable 1. The feeding conveyor belt 2 and the discharging conveyor belt 3 are used to move the sheet metal part to be bent to the bending seat 7 and to send the bent sheet metal part to the next process step, respectively, improving the overall automation level of the processing. The process of moving the sheet metal part from the feeding conveyor belt 2 to the bending seat 7 and from the bending seat to the discharging conveyor belt 3 can be operated by commonly used robotic arms, electromagnetic chucks, etc.

[0020] The workbench 1 is equipped with a mounting frame 4, and a hydraulic cylinder 5 is mounted on the top of the mounting frame 4. A bending head 6 corresponding to the bending seat 7 is mounted on the bottom of the movable end of the hydraulic cylinder 5. The bending head 6 can be installed on the bottom of the movable end of the hydraulic cylinder 5 by bolts, etc., and it can also be replaced according to the bending processing needs.

[0021] The mounting bracket 4 is equipped with a fixing bracket 8. The upper surface of the fixing bracket 8 is symmetrically provided with two first sliding grooves 9. A first slider 10 is slidably arranged in each of the two first sliding grooves 9. A positioning plate 13 for positioning sheet metal is installed on the lower side of the first slider 10. A drive screw 12 is rotatably arranged in the two first sliding grooves 9. The thread direction of the drive screw 12 in the two first sliding grooves 9 is opposite. The side surface of the first slider 10 is provided with a screw hole corresponding to the drive screw 12. When the drive screw 12 rotates, it can drive the two first sliders 10 to move synchronously towards or away from each other.

[0022] A geared motor 11 is mounted on the side surface of the fixed frame 8. The geared motor 11, hydraulic cylinder 5, feeding conveyor belt 2 and discharging conveyor belt 3, as well as the robot arm, electromagnetic chuck, etc. are all powered by an external power source and controlled by an externally set control panel.

[0023] The hydraulic cylinders, geared motors, feeding conveyors, discharging conveyors, robotic arms, or electromagnetic chucks used in this application are all commonly used electronic components in the prior art. Their specific structures, working principles, control methods, and circuit connections are all well-known technologies and will not be described in detail here.

[0024] The output shaft of the geared motor 11 passes through the first slide groove 9 and is connected to the drive screw 12 via a coupling. The sheet metal part to be bent is moved to the bending seat 7 by the feeding conveyor belt 2. Then, the geared motor 11 drives the drive screw 12 to rotate. The drive screw 12 can drive the two first sliders 10 and the positioning plate 13 to move synchronously in opposite directions, pushing the sheet metal part to be bent to the center of the bending seat 7 and fixing it in place. Then, the hydraulic cylinder 5 drives the bending head 6 to press down on the sheet metal part, which can be bent into the corresponding shape by cooperating with the bending groove of the bending seat 7. The positioning and fixing by the positioning plate 13 can avoid problems such as bending size deviation, irregular shape and increased scrap rate caused by inaccurate positioning of the sheet metal part. Compared with the traditional fixed positioning structure, this device uses the motor to drive the screw to realize the synchronous movement of the positioning plates in opposite directions. The spacing of the positioning plates can be quickly adjusted according to the sheet metal parts of different sizes, which greatly enhances the versatility and adaptability of the equipment and effectively improves the accuracy and efficiency of bending processing.

[0025] The positioning plate 13 extends from the fixing frame 8 towards the bending seat 7, which facilitates the positioning and fixing of the sheet metal parts onto the bending seat 7.

[0026] In a preferred embodiment, a second groove 14 is provided on the lower surface of the first slider 10, and a second slider is slidably disposed in the second groove 14. The positioning plate 13 and the second slider are integrally formed. The two positioning plates 13 can be adjusted on their respective first sliders 10. The positions of the two positioning plates 13 can be flexibly adjusted according to the specific bending position of the sheet metal part, so that the sheet metal part can be positioned at the accurate bending processing position after it is moved, rather than just being able to move the sheet metal part to the center of the bending seat 7, which greatly improves the versatility.

[0027] In a further preferred embodiment, a through groove is provided on the side surface of the connection between the positioning plate 13 and the second slider, and a screw hole is provided on the inner surface of the through groove. The screw hole is threaded to a fixing bolt 15 for fixing the position of the second slider and the positioning plate 13. The fixing bolt 15 can be rotated through the through groove to fix the positioning plate 13 in the second slide groove 14, thus fixing its position. The fixing is convenient and the operation is simple.

[0028] Furthermore, the inner surface of the second slide groove 14 is evenly provided with a plurality of fixing screw holes 16 corresponding to the fixing bolts 15. The fixing bolts 15 can be threadedly connected to the screw holes of the second slider and the fixing screw holes 16 in sequence, so that the second slider and the positioning plate 13 can be completely fixed to the inner side of the second slide groove 14, instead of being fixed only by the clamping force of the fixing bolts 15. The fixation is more secure and can avoid problems such as bending dimension deviation, irregular shape and increased scrap rate caused by the positioning plate 13 moving in the second slide groove 14 during the positioning of the sheet metal parts.

[0029] Furthermore, the side surface of the first slider 10 is uniformly provided with scale lines 18, and the scale lines 18 correspond one-to-one with the fixed screw holes 16. The upper surface of the positioning plate 13 is fixedly provided with a pointer 19 corresponding to the scale lines 18. When it is necessary to adjust the position of the two positioning plates 13 to adapt to the corresponding sheet metal bending processing requirements, the positioning plates 13 can be moved precisely through the scale lines 18 and the pointer 19, making the adjustment more convenient and faster, improving the adjustment accuracy and work efficiency.

[0030] In the preferred embodiment, both the second slide groove 14 and the second slider have a T-shaped cross-section. This design provides better stability for the second slider when sliding within the second slide groove 14, effectively preventing the positioning plate from shaking or detaching during operation. This improves the installation stability of the positioning plate 13, thereby ensuring accuracy during bending. Simultaneously, the T-shaped structure facilitates quick disassembly and replacement of the positioning plate, making maintenance or adjustments as needed easier and further enhancing the flexibility and practicality of the equipment.

[0031] In a preferred embodiment, a plurality of ribs 17 are mounted on the surface of the positioning plate 13 away from the bending seat 7. These ribs 17 can be parallel and evenly distributed, or they can intersect to form multiple triangles, significantly enhancing the structural strength and stability of the positioning plate 13. During the movement and positioning of the sheet metal part, the positioning plate 13 experiences significant compressive stress. The ribs 17 effectively disperse this stress, preventing deformation or damage to the positioning plate 13, thereby extending its service life, ensuring unaffected positioning accuracy, and further improving the quality and reliability of the bending process.

[0032] The parts not disclosed in this utility model are all prior art, and their specific structures, materials, and working principles will not be described in detail. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sheet metal positioning structure for sheet metal bending, comprising a worktable (1), characterized in that: The workbench (1) is provided with a bending seat (7), and a bending groove is provided on the upper surface of the bending seat (7). The front and rear sides of the workbench (1) are respectively provided with a feeding conveyor belt (2) and a discharging conveyor belt (3). The workbench (1) is provided with a mounting frame (4), and a hydraulic cylinder (5) is provided on the top of the mounting frame (4). A bending head (6) corresponding to the bending seat (7) is installed at the bottom of the movable end of the hydraulic cylinder (5). The mounting frame (4) is provided with a fixing frame (8), and two first sliding grooves (9) are symmetrically opened on the upper surface of the fixing frame (8). The two first sliding grooves (9) are located in the middle of the workbench (1). A first slider (10) is slidably provided. A positioning plate (13) for positioning sheet metal is installed on the lower side of the first slider (10). A drive screw (12) is rotatably provided in the two first slide grooves (9). The thread direction of the drive screw (12) in the two first slide grooves (9) is opposite. The side surface of the first slider (10) is provided with a screw hole corresponding to the drive screw (12). A geared motor (11) is installed on the side surface of the fixing frame (8). The output shaft of the geared motor (11) passes into the first slide groove (9) and is connected to the drive screw (12) through a coupling.

2. The sheet metal positioning structure for sheet metal bending according to claim 1, characterized in that: The lower surface of the first slider (10) is provided with a second slide groove (14), and a second slider is slidably disposed in the second slide groove (14). The positioning plate (13) and the second slider are integrally formed.

3. The sheet metal positioning structure for sheet metal bending according to claim 2, characterized in that: The side surface of the positioning plate (13) where it connects with the second slider is provided with a through groove, and the inner surface of the through groove is provided with a screw hole. The screw hole is internally threaded with a fixing bolt (15) for fixing the position of the second slider and the positioning plate (13).

4. The sheet metal positioning structure for sheet metal bending according to claim 3, characterized in that: The inner surface of the second groove (14) is evenly provided with a number of fixing screw holes (16) corresponding to the fixing bolts (15).

5. A sheet metal positioning structure for sheet metal bending according to claim 2, characterized in that: The first slider (10) has scale lines (18) evenly arranged on its side surface, and the upper surface of the positioning plate (13) is fixedly provided with a pointer (19) corresponding to the scale lines (18).

6. The sheet metal positioning structure for sheet metal bending according to claim 2, characterized in that: The cross-sectional shape of the second groove (14) and the second slider is T-shaped.

7. The sheet metal positioning structure for sheet metal bending according to claim 1, characterized in that: Several ribs (17) are installed on the side surface of the positioning plate (13) away from the bending seat (7).

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