A multi-sided bending device for aluminum-zinc plates used in the production of high-voltage switchgear.

Abstract

This utility model discloses a multi-sided bending device for aluminum-zinc plates used in the production of high-voltage switchgear, relating to the field of bending technology. It includes a support arm, on which a hydraulic cylinder is fixedly mounted. A connecting plate is fixedly mounted at the output end of the hydraulic cylinder, and bolts are installed at the edge of the connecting plate. A bending mechanism is connected to the connecting plate. The bending mechanism includes an upper mold fixedly mounted on the connecting plate, and a lower mold below the upper mold. A rectangular cavity is formed on the lower mold, and a positioning slot is formed at the upper end of the rectangular cavity. The positioning slot holds a sheet metal. A punching mechanism is mounted on the upper mold, and movable sliding grooves are formed on both sides of the upper mold. An extension groove is formed on the upper mold, and a discharge hole is formed in the positioning slot, penetrating the lower mold. This multi-sided bending device for aluminum-zinc plates used in the production of high-voltage switchgear, through the coordinated use of the bending mechanism and the punching mechanism, can quickly complete the bending work and can quickly punch mounting holes on the edge of the sheet metal.

Description

Technical Field

[0001] This utility model relates to the field of bending technology, specifically a multi-sided bending device for aluminum-zinc plates used in the production of high-voltage switchgear. Background Technology

[0002] Bending is a cold working process that uses mechanical force to plastically deform metal sheets, pipes, or profiles along a straight line. Pressure is applied to the material using a bending machine die to form geometric shapes such as V-shapes and U-shapes at specific angles. Aluminum-zinc plates installed on high-voltage switchgear require edge folding, and mounting holes need to be drilled at the folded edges.

[0003] In the prior art, patent announcement number CN222587731U discloses a fixed plate bending device, which includes a fixing component and a pushing component. The fixing component includes a worktable, a slotted plate, a lower mold, a limiting rod, a first elastic element, and a pressing component. The pushing component includes a pushing slide rod and a second elastic element, the second elastic element being disposed at the bottom of the worktable.

[0004] The aforementioned device can be used to bend the edges of sheet metal. However, aluminum-zinc plates installed on high-voltage switchgear require bending at all four edges to ensure structural stability and installation accuracy. Furthermore, after bending, precise mounting holes must be drilled at the bent edges for subsequent fixing and connection. However, the aforementioned device, due to its technical limitations, cannot complete the entire bending and drilling process in one operation, impacting production efficiency and finished product quality. Therefore, a multi-sided bending device for aluminum-zinc plates used in high-voltage switchgear production is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a multi-sided bending device for aluminum-zinc plates used in the production of high-voltage switchgear, so as to solve the problems in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-sided bending device for aluminum-zinc plates used in high-voltage switchgear production, comprising a support arm, a hydraulic cylinder fixedly mounted on the support arm, a connecting plate fixedly mounted at the output end of the hydraulic cylinder, bolts mounted on the edge of the connecting plate, a bending mechanism connected to the connecting plate, the bending mechanism comprising an upper mold fixedly mounted on the connecting plate, a lower mold below the upper mold, a rectangular cavity formed on the lower mold, a positioning slot formed at the upper end of the rectangular cavity, a plate placed in the positioning slot, and a punching mechanism mounted on the upper mold.

[0007] Preferably, the upper mold has movable sliding grooves on both sides, an extension groove on the upper mold, and a discharge hole in the positioning slot, which extends through the lower mold.

[0008] Preferably, the upper mold has a threaded hole, and the bolt is connected to the upper mold through the threaded hole.

[0009] Preferably, the upper mold is fixedly installed on the connecting plate by bolts, and the plate is positioned at the upper end of the lower mold by a positioning slot.

[0010] Preferably, the punching mechanism includes a spring cap fixedly installed on the upper end of the movable slide groove and a sliding support foot slidably installed in the movable slide groove. A punching frame is fixedly installed on the sliding support foot. A punch is fixedly installed at the lower end of the punching frame, and the punch is vertically aligned with the discharge hole. Limiting frames are fixedly installed on both sides of the punching frame. An electric push rod is fixedly installed in the extension groove. A wedge block is fixedly installed at the output end of the electric push rod, and the wedge block is slidably installed on the limiting frame. A return spring is provided inside the spring cap.

[0011] Preferably, one end of the reset spring is connected to the top of the spring cap, and the other end of the reset spring is fixedly installed on the sliding support.

[0012] Preferably, the sliding support leg is slidably mounted on the upper mold via a movable groove, the punching frame is slidably mounted on the upper mold via the sliding support leg, and the wedge block is movably mounted on the upper mold via an extension groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. In this application, after the sheet metal is positioned in the positioning slot, a wedge block extends outward from the outer edge of the upper die via an electric push rod. The outward extension of the wedge block causes the punching frame to move towards the lower end of the die and be fixed in place. Subsequently, the upper die moves downward using a hydraulic cylinder drive mechanism. During the downward movement of the lower die, the punch cuts the edge of the sheet metal to form the required mounting hole.

[0015] 2. In this application, after the punching frame is moved to the upper position of the upper die, the lower die is driven by the hydraulic cylinder to move into the rectangular cavity, thereby extruding the sheet metal into the rectangular cavity and bending the edge of the sheet metal, thus completing the folding process in one go and effectively improving the efficiency of the folding operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a partial structural schematic diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the folding mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram of the punching mechanism of this utility model;

[0020] Figure 5 This is a schematic diagram of the sheet material of this utility model and the sheet material after forming.

[0021] The markings in the diagram are: 1. Support arm; 2. Hydraulic cylinder; 3. Connecting plate; 4. Bolt; 5. Plate; 6. Folding mechanism; 601. Lower mold; 602. Positioning slot; 603. Discharge hole; 604. Movable slide; 605. Extension slot; 606. Upper mold; 607. Rectangular cavity; 7. Punching mechanism; 701. Punching frame; 702. Punch; 703. Limiting frame; 704. Sliding support; 705. Return spring; 706. Spring cap; 707. Electric push rod; 708. Wedge block. Detailed Implementation

[0022] 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.

[0023] like Figure 1 and Figure 2 As shown, this utility model provides a technical solution for a multi-sided bending device for aluminum-zinc plates used in the production of high-voltage switchgear. It includes a support arm 1, a hydraulic cylinder 2 fixedly installed on the support arm 1, a connecting plate 3 fixedly installed at the output end of the hydraulic cylinder 2, bolts 4 installed at the edge of the connecting plate 3, a bending mechanism 6 connected to the connecting plate 3, and a punching mechanism 7 installed on the upper mold 606. Through the cooperation of the bending mechanism 6 and the punching mechanism 7, the bending work can be completed quickly, and mounting holes can be quickly punched out on the edge of the plate 5.

[0024] like Figure 2 , Figure 3 and Figure 5 As shown, the folding mechanism 6 includes an upper mold 606 fixedly installed on the connecting plate 3, a lower mold 601 below the upper mold 606, a rectangular cavity 607 on the lower mold 601, a positioning slot 602 on the upper end of the rectangular cavity 607, a plate 5 placed in the positioning slot 602, movable sliding grooves 604 on both sides of the upper mold 606, an extension groove 605 on the upper mold 606, a discharge hole 603 in the positioning slot 602, and the discharge hole 603 penetrates the lower mold 601, a threaded hole on the upper mold 606, and a bolt 4 connected to the upper mold 606 through the threaded hole.

[0025] Specifically, after the sheet metal 5 is placed in the positioning slot 602, the wedge block 708 can be extended from the inside of the upper mold 606 to the outside by the driving action of the electric push rod 707. When the wedge block 708 extends out of the upper mold 606, it applies a certain pushing force to the punching frame 701 around it, forcing the punching frame 701 to move along a predetermined track to the lower end position of the upper mold 606. After the punching frame 701 successfully moves to the lower end of the upper mold 606, the upper mold 606 can be driven downward by the pushing action of the hydraulic cylinder 2. When the upper mold 606 moves downward with the action of the hydraulic cylinder 2, the punch 702 will accurately align with the edge of the sheet metal 5 and punch out the required mounting holes on it. After the mounting holes on the edge of the sheet metal 5 are punched out, the wedge block 708 is retracted from the outside of the upper mold 606 back into its interior by the driving action of the electric push rod 707 again. After the wedge block 708 retracts into the upper die 606, the return spring 705 will take effect, pulling the punching frame 701 back to the initial position, that is, the upper end of the upper die 606, completing the reset operation of the entire punching process.

[0026] like Figure 2 , Figure 4 and Figure 5 As shown, the punching mechanism 7 includes a spring cap 706 fixedly installed on the upper end of the movable slide 604 and a sliding support 704 slidably installed in the movable slide 604. A punching frame 701 is fixedly installed on the sliding support 704. A punch 702 is fixedly installed at the lower end of the punching frame 701, and the punch 702 is vertically aligned with the discharge hole 603. Limiting frames 703 are fixedly installed on both sides of the punching frame 701. An electric push rod 707 is fixedly installed in the extension groove 605. A wedge block 708 is fixedly installed at the output end of the electric push rod 707, and the wedge block 708 is slidably installed on the limiting frame 703. A return spring 705 is provided in the spring cap 706. One end of the return spring 705 is connected to the top of the spring cap 706, and the other end of the return spring 705 is fixedly installed on the sliding support 704.

[0027] Specifically, after the punching frame 701 is moved to the top position of the upper die 606, the upper die 606 can be driven downward by the force of the hydraulic cylinder 2, entering the interior of the rectangular cavity 607. During this process, the upper die 606 applies pressure to the sheet metal 5 placed on it, causing the edges of the sheet metal 5 to bend inward and fold. In this way, the folding operation of the sheet metal 5 can be completed in one go, thereby greatly improving the folding efficiency. This design not only simplifies the folding steps but also reduces the required time and labor, making the entire production process more efficient and convenient.

[0028] Working principle: When in use, first place the plate 5 in the positioning slot 602. After the plate 5 is placed in the positioning slot 602, the wedge block 708 can be driven by the electric push rod 707 to extend out of the upper mold 606. When the wedge block 708 extends out of the upper mold 606, it will force the punching frame 701 to move to the lower end of the upper mold 606. After the punching frame 701 moves to the lower end of the upper mold 606, the upper mold 606 can be driven by the oil cylinder 2 to move downward. When the upper mold 606 moves downward, the punch 702 will punch out the mounting hole on the edge of the plate 5. After the mounting hole is punched out on the edge of the plate 5, the wedge block 708 can be driven by the electric push rod 707 to retract into the upper mold 606. After the wedge block 708 retracts into the upper mold 606, the return spring 705 will pull the punching frame 701 to return to its original position, so that the punching frame 701 moves to the upper end of the upper mold 606. After the punching frame 701 moves to the upper end of the upper mold 606, the upper mold 606 can be driven by the hydraulic cylinder 2 to move into the rectangular cavity 607, thereby squeezing the plate 5 into the rectangular cavity 607, causing the edge of the plate 5 to fold up, completing the folding work in one go, and improving the folding efficiency.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A multi-sided bending device for aluminum-zinc plates used in the production of high-voltage switchgear, comprising a support arm (1), a hydraulic cylinder (2) fixedly mounted on the support arm (1), a connecting plate (3) fixedly mounted on the output end of the hydraulic cylinder (2), and bolts (4) mounted on the edge of the connecting plate (3), characterized in that: A folding mechanism (6) is connected to the connecting plate (3). The folding mechanism (6) includes an upper mold (606) fixedly installed on the connecting plate (3). A lower mold (601) is provided below the upper mold (606). A rectangular cavity (607) is opened on the lower mold (601). A positioning slot (602) is opened at the upper end of the rectangular cavity (607). A plate (5) is placed in the positioning slot (602). A punching mechanism (7) is installed on the upper mold (606).

2. The aluminum-zinc plate multi-edge bending device for high-voltage cabinet production according to claim 1, characterized in that: The upper mold (606) has movable sliding grooves (604) on both sides, and an extension groove (605) is provided on the upper mold (606). The positioning slot (602) has a discharge hole (603) that passes through the lower mold (601).

3. The multi-sided bending device for aluminum-zinc plates used in high-voltage switchgear production according to claim 2, characterized in that: The upper mold (606) has a threaded hole, and the bolt (4) is connected to the upper mold (606) through the threaded hole.

4. The multi-sided bending device for aluminum-zinc plates used in high-voltage switchgear production according to claim 3, characterized in that: The upper mold (606) is fixedly installed on the connecting plate (3) by bolts (4), and the plate (5) is positioned at the upper end of the lower mold (601) by the positioning slot (602).

5. The multi-sided bending device for aluminum-zinc plates used in high-voltage switchgear production according to claim 4, characterized in that: The punching mechanism (7) includes a spring cap (706) fixedly installed on the upper end of the movable slide (604) and a sliding support (704) slidably installed in the movable slide (604). A punching frame (701) is fixedly installed on the sliding support (704). A punch (702) is fixedly installed at the lower end of the punching frame (701), and the punch (702) is vertically aligned with the discharge hole (603). Limit frames (703) are fixedly installed on both sides of the punching frame (701). An electric push rod (707) is fixedly installed in the extension groove (605). A wedge block (708) is fixedly installed at the output end of the electric push rod (707), and the wedge block (708) is slidably installed on the limit frame (703). A return spring (705) is provided in the spring cap (706).

6. The multi-sided bending device for aluminum-zinc plates used in high-voltage switchgear production according to claim 5, characterized in that: One end of the return spring (705) is connected to the top of the spring cap (706), and the other end of the return spring (705) is fixedly installed on the sliding support (704).

7. The multi-sided bending device for aluminum-zinc plates used in high-voltage switchgear production according to claim 6, characterized in that: The sliding support (704) is slidably mounted on the upper mold (606) via the movable slide groove (604), the punching frame (701) is slidably mounted on the upper mold (606) via the sliding support (704), and the wedge block (708) is movably mounted on the upper mold (606) via the extension groove (605).

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