A copper bar folding device

Abstract

The utility model relates to a power distribution cabinet production device technical field, concretely relates to a copper bar bending device, in order to solve the problem that the existing bending machine bending torque is small, and it is difficult to provide enough bending torque for thick copper bar, the bending device includes the workbench, the hydraulic cylinder is set up to the workbench rear side horizontal forward, the hydraulic cylinder's telescopic end is provided with the female die, the workbench front side is provided with the male die that cooperates with female die, the male die is provided with the convex that is used to bend, the female die is vertically provided with the V -shaped recess that is used to bend, the upper portion of female die left and right sides is horizontally provided with no. The lower part of female die left and right sides is horizontally provided with no. 2 board, the vertical column of no. 1 board and no. 2 board front end is provided with, the pressure roller of column body is set up, the plane of the two sides of V -shaped recess is tangent with the pressure roller of corresponding side, the utility model discloses a pressure roller first contact copper bar both ends forms larger force arm to produce greater bending torque with smaller driving force.

Description

Technical Field

[0001] This utility model relates to the technical field of power distribution cabinet production equipment, specifically to a copper busbar bending device. Background Technology

[0002] In power distribution systems, distribution cabinets are key equipment for power distribution and control, and their internal conductive circuits typically use copper busbars as connecting conductors. Due to their excellent conductivity, mechanical strength, and corrosion resistance, copper busbars are widely used in high-current transmission applications.

[0003] Currently, bending machines are commonly used in the industry to bend copper busbars. Existing bending machines include a worktable with a hydraulic cylinder. A die is located on the telescopic end of the hydraulic cylinder. A punch, which mates with the die, is also located on the worktable. The punch has a bending protrusion, and the die has a V-shaped groove for bending. The protrusion and the V-shaped groove match. For example, a copper busbar bending machine disclosed in patent announcement number CN222679384U includes an operating table. A hydraulic rod is fixedly connected to one side of the top of the operating table, and a die is fixedly connected to the output end of the hydraulic rod. A support plate is fixedly connected to the top of the operating table. A lifting mechanism is fixedly connected inside the mounting slot. A movable slot is opened at the top of the operating table, and a punch is fixedly connected to the top of the operating table. Traditional copper busbar bending machines can achieve bending of copper busbars with small thicknesses (e.g., less than 6mm) through die pressing. However, as the current level of the power distribution system increases, the thickness of the copper busbar gradually increases (e.g., to more than 10mm), requiring a larger bending torque, which significantly increases the difficulty of bending. Existing bending machines are unable to provide sufficient bending torque. Utility Model Content

[0004] To address the aforementioned technical deficiencies, this invention provides a copper busbar bending device that can provide a larger bending torque, facilitating the bending of thick copper busbars.

[0005] This utility model discloses a copper busbar bending device, including a worktable, a hydraulic cylinder horizontally arranged on the rear side of the worktable facing forward, a concave die arranged on the telescopic end of the hydraulic cylinder, a convex die arranged on the front side of the worktable to cooperate with the concave die, a protrusion for bending is provided on the convex die, a V-shaped groove for bending is vertically arranged on the concave die, the protrusion and the V-shaped groove are matched, a No. 1 plate is horizontally arranged on the upper part of the left and right sides of the concave die, a No. 2 plate is horizontally arranged on the lower part of the left and right sides of the concave die, the No. 1 plate and the No. 2 plate are corresponding, a column is vertically arranged at the front end of the No. 1 plate and the No. 2 plate, the two ends of the column are fixedly connected to the No. 1 plate and the No. 2 plate respectively, and a pressure roller is sleeved on the column, the plane of the two sides of the V-shaped groove is tangent to the pressure roller on the corresponding side.

[0006] The principle of the above technical solution is that a thick copper busbar is placed between the die and the punch. A horizontal hydraulic cylinder drives the die to press forward. Since the planes on the two sides of the V-shaped groove are tangent to the pressure rollers on the corresponding sides, the pressure rollers press on both ends of the copper busbar first, while the middle of the copper busbar presses against the punch. At this time, the lever arm is large, and the bending torque is larger, so the copper busbar can be bent more easily. Finally, when the die contacts the copper busbar, it works with the punch to further shape the bent part.

[0007] Furthermore, to make the structure of Plate 1 and Plate 2 more stable, a connecting plate is vertically installed between Plate 1 and Plate 2 on the same side to connect them, so that Plate 1 and Plate 2 on the same side form a whole.

[0008] Furthermore, in order to reduce the stress at the connection between plate 1 and plate 2 and the die, a second connecting plate is horizontally installed on the upper side of the die. The two ends of the second connecting plate are fixedly connected to plate 1 on the left and right sides of the die, respectively. Plate 1 is pulled by the second connecting plate, and plate 1 is pulled by the first connecting plate.

[0009] The copper busbar bending device disclosed in this invention offers several advantages. By using a hydraulic cylinder to drive the die forward, combined with the protrusion of the punch and the V-shaped groove structure of the die, along with the rotatable pressure rollers on both sides, the pressure rollers first contact both ends of the copper busbar, forming a larger lever arm. This results in a larger bending torque with a smaller driving force, significantly reducing the initial bending difficulty of thick copper busbars. Subsequently, the precise cooperation between the die and punch further shapes the bent area, ensuring bending accuracy. Furthermore, the first and second connecting plates are connected as a whole by a first connecting plate, and the addition of a second connecting plate disperses the stress, effectively enhancing structural rigidity and stability. This reduces stress concentration at the connection points and extends the device's service life. This device achieves a comprehensive improvement in the labor-saving, precision, and durability of the thick copper busbar bending process. Attached Figure Description

[0010] Figure 1 This is a schematic diagram illustrating the use of Embodiment 1 of this utility model;

[0011] Figure 2 This is a schematic diagram illustrating the use of Embodiment 1 of this utility model. Detailed Implementation

[0012] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0013] Example 1:

[0014] like Figure 1 , 2As shown, this utility model discloses a copper busbar bending device, including a workbench 1. A hydraulic cylinder 2 is horizontally arranged on the rear side of the workbench 1 facing forward. A die 3 is arranged on the telescopic end of the hydraulic cylinder 2. A punch 9 is arranged on the front side of the workbench 1 to cooperate with the die 3. The punch 9 is provided with a bending protrusion. A V-shaped groove for bending is vertically arranged on the die 3. The protrusion matches the V-shaped groove. A first plate 4 is horizontally arranged on the upper part of the left and right sides of the die 3, and a second plate 6 is horizontally arranged on the lower part of the left and right sides of the die 3. The first plate 4 and the second plate 6 correspond to each other. A connecting plate 7 is vertically installed between plate 4 and plate 6 on the same side to form a whole. At the same time, a connecting plate 5 is horizontally installed on the upper side of the die 3. The two ends of the connecting plate 5 are fixedly connected to the plate 4 on the left and right sides of the die 3, respectively. A column is vertically installed at the front end of plate 4 and plate 6. The two ends of the column are fixedly connected to plate 4 and plate 6, respectively. A pressure roller 8 is sleeved on the column. The planes of the two sides of the V-shaped groove are tangent to the pressure roller 8 on the corresponding side.

[0015] The principle of the above technical solution is that a thick copper busbar 10 is placed between the die 3 and the punch 9. The horizontal hydraulic cylinder 2 drives the die 3 to press forward. Since the planes on the two sides of the V-shaped groove are tangent to the pressure rollers 8 on the corresponding sides, the pressure rollers 8 press on both ends of the copper busbar 10 first, and the middle part of the copper busbar 10 presses against the punch 9. At this time, the lever arm is larger, and the bending torque is larger, so that the copper busbar 10 can be bent more easily. Finally, when the die 3 contacts the copper busbar 10, it works with the punch 9 to further shape the bent part.

Claims

1. A copper busbar bending device, characterized in that: The worktable (1) is provided with a hydraulic cylinder (2) horizontally facing forward on the rear side of the worktable (1). A die (3) is provided on the telescopic end of the hydraulic cylinder (2). A punch (9) that cooperates with the die (3) is provided on the front side of the worktable (1). A protrusion for bending is provided on the punch (9). A V-shaped groove for bending is provided vertically on the die (3). The protrusion matches the V-shaped groove. A No. 1 plate (4) is horizontally provided on the upper part of the left and right sides of the die (3). A No. 2 plate (6) is horizontally provided on the lower part of the left and right sides of the die (3). The No. 1 plate (4) and the No. 2 plate (6) correspond to each other. A column is vertically provided at the front end of the No. 1 plate (4) and the No. 2 plate (6). The two ends of the column are fixedly connected to the No. 1 plate (4) and the No. 2 plate (6) respectively. A pressure roller (8) is sleeved on the column. The planes on the two sides of the V-shaped groove are tangent to the pressure roller (8) on the corresponding side.

2. The copper busbar bending device according to claim 1, characterized in that: A connecting plate (7) is vertically installed between plate 1 (4) and plate 2 (6) on the same side for connection.

3. The copper busbar bending device according to claim 2, characterized in that: A second connecting plate (5) is horizontally arranged on the upper side of the die (3), and the two ends of the second connecting plate (5) are fixedly connected to the first plate (4) on the left and right sides of the die (3).

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