Metal plate bending machine

Abstract

The utility model relates to the field of bending machines, and discloses a metal plate bending machine which comprises bending equipment, a fixing frame is fixedly installed on the upper surface of the bending equipment, a hydraulic driving part is arranged in the middle of the top end of the fixing frame, and the bottom end of the hydraulic driving part extends into the fixing frame to be provided with a bending head. A mold base is fixedly installed on the upper surface of the bending equipment and located under the fixing frame, sliding grooves are formed in the two sides of the inner wall of the fixing frame in a penetrating mode, the two sides of a bending head penetrate through the sliding grooves to be fixedly connected with connecting blocks, rack plates are welded to the edge portions of one sides of the connecting blocks, and gears are rotationally installed on the two sides, close to the middle of the mold base, of the outer surface of the fixing frame; according to the bending device, the connecting frame and the limiting clamping plate synchronously move along with the bent metal plate, so that the effect of movably supporting the bent plate is achieved, the stable bending effect of the metal plate is improved, the problem that the plate is bent and deformed under the action of a bending head is solved, and the protection effect of the metal plate during bending is improved.

Description

Technical Field

[0001] This application relates to the field of bending machines, and particularly to a metal sheet bending machine. Background Art

[0002] A bending machine is a mechanical device used for metal processing, mainly used for bending metal sheets to fabricate various shaped workpieces. By placing the metal sheet to be processed on the back seat of the bending machine and fixing its position through clamps or manually, the hydraulic system drives the lower die to move upward, applying pressure to the metal sheet to make it bend along the curve of the upper die.

[0003] Since some relatively thin metal sheets have a certain degree of ductility, when bending the end of the sheet, the downward pressure of the bending head will drive the overall bending of the sheet, which may cause the overall bending deformation of the sheet and reduce the overall flatness of the sheet surface, thereby affecting the subsequent processing efficiency.

[0004] In view of the above related technologies, the inventor believes that there are defects in the overall bending deformation of the sheet during bending. Therefore, a metal sheet bending machine is proposed to solve the above problems. Utility Model Content

[0005] In order to solve the problem of overall bending deformation of the sheet during bending, this application provides a metal sheet bending machine.

[0006] The metal sheet bending machine provided by this application adopts the following technical solutions:

[0007] A metal sheet bending machine includes a bending device. A fixed frame is fixedly installed on the upper surface of the bending device. In the middle of the top end of the fixed frame, there is a hydraulic driving part. The bottom end of the hydraulic driving part extends into the fixed frame and is installed with a bending head. On the upper surface of the bending device, a mold base is fixedly installed directly below the fixed frame. On both sides of the inner wall of the fixed frame, sliding grooves are penetrated and opened. On both sides of the bending head, connection blocks are fixedly connected through the sliding grooves. On one side edge of the connection block, a rack plate is welded. On both sides of the outer surface of the fixed frame, near the middle position of the mold base, gears are rotatably installed. In the middle of one side of the gear, a connecting long plate is fixedly installed. Between the two connecting long plates, there is also a support mechanism for actively supporting the metal sheet.

[0008] Preferably, the support mechanism includes a number of connecting frames, which are welded at equal intervals at the bottom between the two connecting long plates. On the upper surface of the connecting frame, a number of hollow tubes are fixedly installed. At the bottom end of the inner wall of the hollow tube, a spring is installed. On the upper surface of the spring, a movable support rod is movably installed. The top end of the movable support rod extends above the hollow tube and is welded with a support plate.

[0009] Preferably, a number of limit bolts are fixedly installed near the connecting frame at the top end of the connecting long plate. A limit clamping plate is movably sleeved on the outer surface of the limit bolt, and a fastening nut is threadedly connected to the upper surface of the limit clamping plate on one side of the outer surface of the limit bolt.

[0010] Preferably, one end of the rack plate is movably close to one side of the outer surface of the gear, and the rack plate and the gear are meshed with each other.

[0011] Preferably, through holes are formed through both side edges at the top end of the limit clamping plate. The outer diameter of the limit bolt is smaller than the inner diameter of the through hole, and one side of the outer surface of the limit bolt is located inside the through hole.

[0012] In summary, the present application includes the following beneficial technical effects:

[0013] By placing the metal plate on multiple support plates and positioning the bending part at the middle position of the mold base, covering and fixing multiple limit clamping plates on the upper surface of the connecting long plate, and allowing the bending head to slide down along the sliding groove for bending, while driving the rack plate to descend and act on the outer surface of the gear, causing the gear to rotate and drive the connecting long plate to rotate, thereby driving the connecting frame and the limit clamping plate to move synchronously; compared with the prior art, this solution has the effect of facilitating the movable support of the plate during bending, improving the stable bending effect of the metal plate, solving the problem of bending deformation of the plate under the action of the bending head, and enhancing the protection effect during the bending of the metal plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the overall structural schematic diagram of the application embodiment;

[0015] Figure 2 is the cross-sectional structural schematic diagram of the connecting frame in the application embodiment;

[0016] Figure 3 is the application embodiment Figure 2 partial enlarged structural schematic diagram of A therein;

[0017] Description of reference numerals: 1, bending equipment; 2, fixing frame; 3, hydraulic drive part; 4, bending head; 5, mold base; 6, sliding groove; 7, connecting block; 8, rack plate; 9, gear; 10, connecting long plate; 11, connecting frame; 12, hollow tube; 13, spring; 14, movable support rod; 15, support plate; 16, limit clamping plate; 17, limit bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following further describes the present application in detail Figures 1 - 3 with reference to the accompanying drawings.

[0019] The embodiment of the present application discloses a metal plate bending machine. Refer to Figures 1 - 3, a metal sheet bending machine, including a bending device 1. A fixed frame 2 is fixedly installed on the upper surface of the bending device 1. A hydraulic driving part 3 is arranged in the middle of the top end of the fixed frame 2. The bottom end of the hydraulic driving part 3 extends into the fixed frame 2 and is installed with a bending head 4. A mold base 5 is fixedly installed on the upper surface of the bending device 1 directly below the fixed frame 2. Sliding grooves 6 are through-opened on both sides of the inner wall of the fixed frame 2. Connecting blocks 7 are fixedly connected to the outside of both sides of the bending head 4 passing through the sliding grooves 6. A rack plate 8 is welded to one side edge of the connecting block 7. Gears 9 are rotatably installed on both sides of the outer surface of the fixed frame 2 near the middle position of the mold base 5. One end of the rack plate 8 movably approaches one side of the outer surface of the gear 9. The rack plate 8 and the gear 9 are meshed with each other. A connecting long plate 10 is fixedly installed in the middle of one side of the gear 9. A support mechanism is also arranged between the two connecting long plates 10 for movably supporting the metal sheet.

[0020] By placing the bending part of the metal sheet at the middle position of the mold base 5, covering a plurality of limit clamping plates 16 on the upper surface of the connecting long plate 10, and making the limit clamping plates 16 clamped on the outer surface of the limit bolts 17, rotating the fastening nuts to fix the limit clamping plates 16 on the upper surface of the connecting long plate 10, driving the bending head 4 to slide downward along the fixed frame 2 by the hydraulic driving part 3, and at the same time making the bending head 4 drive the connecting block 7 to move inside the sliding groove 6, thereby driving the rack plate 8 to descend and approach the gear 9, making the rack plate 8 act on the outer surface of the gear 9 to drive it to rotate, and making the gear 9 rotate to drive the connecting long plate 10 to rotate, which reflects the synchronous rotation effect of the connecting long plate 10 when the metal sheet is bent.

[0021] Refer to Figure 2 and Figure 3 , the support mechanism includes a number of connecting frames 11. The connecting frames 11 are welded at equal intervals at the bottom between the two connecting long plates 10. A number of hollow tubes 12 are fixedly installed on the upper surface of the connecting frames 11. A spring 13 is installed at the bottom end of the inner wall of the hollow tube 12. A movable support rod 14 is movably installed on the upper surface of the spring 13. The top end of the movable support rod 14 extends above the hollow tube 12 and is welded with a support plate 15. A number of limit bolts 17 are fixedly installed at the top end of the connecting long plate 10 near the connecting frame 11. Limit clamping plates 16 are movably sleeved on the outer surface of the limit bolts 17. A fastening nut is threadedly connected to one side of the outer surface of the limit bolt 17 on the upper surface of the limit clamping plate 16. Through holes are through-opened on both side edges of the top end of the limit clamping plate 16. The outer diameter of the limit bolt 17 is smaller than the inner diameter of the through hole, and one side of the outer surface of the limit bolt 17 is inside the through hole.

[0022] By placing the metal sheet on multiple support plates 15, the spring 13 cooperates with the movable rod 14 to support the sheet movably. The rotating connecting long plate 10 drives the connecting frame 11 and the limit clamping plate 16 to move synchronously, and the sheet being bent moves synchronously with the connecting frame 11 and the limit clamping plate 16, so that the sheet is stably placed between the support plate 15 and the limit clamping plate 16, keeping the whole sheet in a flat state, which reflects the supporting effect of the multiple support plates 15 and the limit clamping plate 16 on the metal sheet.

[0023] The implementation principle of a metal sheet bending machine according to an embodiment of the present application is as follows: By placing the metal sheet on multiple support plates 15, the spring 13 cooperates with the movable rod 14 to support the sheet movably, and the bending part is placed at the middle position of the mold base 5. Cover multiple limit clamping plates 16 on the upper surface of the connecting long plate 10, and make the limit clamping plate 16 be clamped on the outer surface of the limit bolt 17. Rotate the fastening nut to fix the limit clamping plate 16 on the upper surface of the connecting long plate 10. The hydraulic driving part 3 drives the bending head 4 to slide downward along the fixed frame 2. The input end of the power supply of the hydraulic driving part 3 is electrically connected to the output end of an external power supply. At the same time, the bending head 4 drives the connecting block 7 to move inside the sliding groove 6, and then drives the rack plate 8 to descend and approach the gear 9, so that the rack plate 8 acts on the outer surface of the gear 9 to drive it to rotate. The rotation of the gear 9 drives the connecting long plate 10 to rotate, and then drives the connecting frame 11 and the limit clamping plate 16 to move synchronously. The sheet being bent moves synchronously with the connecting frame 11 and the limit clamping plate 16, so that the sheet is stably placed between the support plate 15 and the limit clamping plate 16, keeping the whole sheet in a flat state; Compared with the prior art, this solution has the effect of facilitating the movable support of the sheet being bent, improving the stable bending effect of the metal sheet, solving the problem of the sheet being bent and deformed under the action of the bending head 4, and enhancing the protection effect when the metal sheet is bent.

[0024] Finally, several points should be noted: First, in the description of the present application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, which can be mechanical connection or electrical connection, or the internal communication of two components, and can be directly connected. "Up", "down", "left", "right", etc. are only used to represent relative position relationships. When the absolute position of the object being described changes, the relative position relationship may change;

[0025] Second: In the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments of the present disclosure are involved. Other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0026] Finally, the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

[0027] The above are all the preferred embodiments of this application, and do not limit the protection scope of this application accordingly. Therefore, any equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A metal sheet bending machine, comprising a bending device (1), wherein a fixing frame (2) is fixedly installed on the upper surface of the bending device (1), and a hydraulic driving part (3) is arranged in the middle of the top end of the fixing frame (2), and is characterized in that: The bottom end of the hydraulic driving part (3) extends to the inside of the fixing frame (2) and is installed with a bending head (4). A mold base (5) is fixedly installed on the upper surface of the bending device (1) directly below the fixing frame (2). Sliding grooves (6) are respectively and penetratingly formed on both sides of the inner wall of the fixing frame (2). Connecting blocks (7) are fixedly connected to the outside of both sides of the bending head (4) passing through the sliding grooves (6). A rack plate (8) is welded to one side edge of the connecting block (7). Gears (9) are respectively rotatably installed on both sides of the outer surface of the fixing frame (2) near the middle position of the mold base (5). A connecting long plate (10) is fixedly installed in the middle of one side of the gear (9). A supporting mechanism is further provided between the two connecting long plates (10) for movably supporting the metal plate.

2. The metal sheet bending machine according to claim 1, characterized in that: The supporting mechanism includes a plurality of connecting frames (11). The connecting frames (11) are equidistantly welded at the bottom between the two connecting long plates (10). A plurality of hollow tubes (12) are fixedly installed on the upper surface of the connecting frame (11). A spring (13) is installed at the bottom end of the inner wall of the hollow tube (12). A movable support rod (14) is movably installed on the upper surface of the spring (13). The top end of the movable support rod (14) extends above the hollow tube (12) and is welded with a support plate (15).

3. A metal sheet bending machine according to claim 2, characterized in that: A plurality of limit bolts (17) are fixedly installed at the top end of the connecting long plate (10) near the connecting frame (11). A limit clamping plate (16) is movably sleeved on the outer surface of the limit bolt (17). A fastening nut is threadedly connected to one side of the outer surface of the limit bolt (17) on the upper surface of the limit clamping plate (16).

4. A metal sheet bending machine according to claim 1, characterized in that: One end of the rack plate (8) movably approaches one side of the outer surface of the gear (9), and the rack plate (8) and the gear (9) are meshed with each other.

5. A metal sheet bending machine according to claim 3, characterized in that: Through holes are respectively formed in both side edges of the top end of the limit clamping plate (16). The outer diameter of the limit bolt (17) is smaller than the inner diameter of the through hole, and one side of the outer surface of the limit bolt (17) is located inside the through hole.

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