Angular (chamfered) cutting device of busbar ends

Abstract

The invention is particularly related to an angular (chamfered) cutting device of busbar (14) ends, which facilitates the placement of the copper conductor sheet, known as the phase rail or busbar (14), used in energy distribution systems known as busbars (14), into the plastic insulator where it will be placed in production by the roll forming method.

Description

[0001] ANGULAR (CHAMFERED) CUTTING DEVICE OF BUSBAR ENDS

[0002] Technical Field

[0003] The invention relates to an angular (chamfered) cutting device of busbar ends.

[0004] The invention is particularly related to an angular (chamfered) cutting device of busbar ends, which facilitates the placement of the copper conductor sheet, known as the phase rail or busbar, used in energy distribution systems known as busbars, into the plastic insulator where it will be placed in production by the roll forming method.

[0005] Background of the Invention

[0006] Today, systems called busbars are used in energy distribution systems. Busbar systems contain conductors that carry current and voltage. Each conductor, called bus bar or phase rail, is a structure capable of carrying current and voltage. Thanks to these systems, electrical energy is transported safely from one point to another.

[0007] Roll forming method is used in the production of the mentioned busbars and the produced busbars are cut in the desired form and length.

[0008] In current applications, the ends of the mentioned busbars are cut vertically. Later, during the assembly phase of this busbar, which can be up to 6 meters long, these vertically cut ends may have difficulty in attaching to the plastic insulator to be used for insulation, or they may be damaged and attached to the plastic insulator.

[0009] For this reason, it is ordered that both ends of the busbar be cut at an angle (chamfered) for non-destructive and easy installation. In addition, this operation is expected to be performed in a single operation at the rollform exit. This is n extremely difficult operation as it requires cutting in three different planes. In the literature, the European patent application numbered EP3804063B1 describes the subject as “A method of manufacturing a bar element for a bus bar conduit, comprising: - providing a conductive bar, which extends substantially straight in a longitudinal direction (X-X), - at least partially covering the conductive bar with an electrically insulating layer, - surrounding the electrically insulating layer with at least one compression member, which tightens the electrically insulating layer against the conductive bar, so that the compression member has at least one portion of its inner surface in contact with the electrically insulating layer, and the inner surface of the compression member remains unattached to the electrically insulating layer - bending the conductive bar, thereby defining at least one substantially rectilinear first portion and one second portion connected to the first portion via at least one bend, - wherein the step of bending the conductive bar is provided after the step of surrounding the insulating layer with the compression member or between the step of covering the conductive bar with the insulating layer and the step of surrounding the insulating layer with the compression member, and - wherein, after the steps of surrounding the electrically insulating layer with at least one compression member and of bending the conductive bar, the electrically insulating layer at least partially covers the conductive bar at the first portion and the second portion, and the at least one compression member is located at the second portion .” statements are included.

[0010] In said application, the direction for manufacturing an insulated rod element for a busbar system is disclosed.

[0011] Again, in the literature, in the PCT application numbered WO03105301 , “The invention concerns a method of wrapping busbars for prefabricated electric ducts. An insulating sheath is prepared having the shape and dimensions of the bar to be covered, the insulating sheath is cut at some preset intervals; a busbar is housed in the shaped insulating sheath; the overlapping edges of the insulating sheath are sealed lengthwise using ultrasound welding or a glue; and the bar-sheath assembly is bent at preset intervals along its length. The invention concerns also the bus-bar achieved using this method.” statements are included. In the mentioned application, the busbar wrapping method for prefabricated electrical channels is disclosed.

[0012] Again, in the PCT application numbered W02012000731 in the literature, it is stated that “The invention relates to the electrical insulation of a busbar in a busbar trunking system for electrical energy distribution. The invention relates in particular to an insulation arrangement, to an insulating element for use in such an insulating arrangement, and to a correspondingly insulated busbar. A technique is proposed for the simplified insulation of busbars in busbar trunking systems, in which the following are provided: a first sheet-like insulating element for covering at least a part of a lateral face of the busbar and a further insulating element for covering an end face of the busbar in a region in which the run of the busbar changes direction, wherein said further insulating element is adapted to the busbar and is appropriately pre-formed.” statements are included.

[0013] In the mentioned patent, the electrical insulation of the busbar channel system by covering the end part of the busbar with a separate insulation element is explained.

[0014] For the reasons mentioned above, a new angular (chamfered) cutting device of busbar ends was needed.

[0015] Purpose of the Invention

[0016] Based on this state of the art, the aim of the invention is to introduce a new angular (chamfered) cutting device of busbar ends that eliminates the current disadvantages.

[0017] Another aim of the invention is to create a structure that allows easy and nondestructive mounting of busbars to plastic insulators.

[0018] Another aim of the invention is to provide a structure that allows assembly in a single operation at the exit of the rollforming process.

[0019] Explanation of Figures Figure - 1 Cross-sectional view of the angular (chamfered) cutting device of the busbar ends, which is the subject of the invention

[0020] Figure - 2 Perspective view of the busbar with an angular end, which is the subject of the invention

[0021] Figure - 3 A top perspective view of the angular (chamfered) cutting device of the busbar ends, which is the subject of the invention

[0022] Reference Numbers

[0023] 1 . Vertical Drive Element

[0024] 2. Angular Drive Element

[0025] 3. Tool Top Plate

[0026] 4. Pushpin

[0027] 5. Tool Main Plate

[0028] 6. Lower Blade

[0029] 7. Blade Support

[0030] 8. Punch Bed

[0031] 9. Vertical Punch

[0032] 10. Right and Left Angle Plane Punch

[0033] 11 .Connecting Plate

[0034] 12. Spring

[0035] 13. Press Frame

[0036] 14. Busbar

[0037] 14.1 Chamfered End

[0038] Detailed Description of the Invention

[0039] In this detailed explanation, the innovation that is the subject of the invention is explained only with examples that will not create any limiting effect for a better understanding of the subject.

[0040] The invention is an angular (chamfered) cutting device of the ends of the busbar (14), which facilitates the placement of the copper conductor sheet, known as the phase rail or busbar (14), used in energy distribution systems known as busbars, into the plastic insulator where it will be placed in production by the roll forming method, characterized in that; comprises vertical punch (9) shaped for 90° separation of the said busbar (14), vertical drive element (1) positioned as a cylinder that moves the said vertical punch (9) in the vertical direction, right and left angular plane punch (10) shaped for cuts in the angular plane, angular drive element (2) positioned as a cylinder that moves the said right and left angular plane punch (10) in the angular plane, tool main plate (5) to which tool elements and bearings are connected, lower blade (6) that allows cuts to be made in angular and perpendicular planes, press (13) serves as a drive element together with the vertical drive element (1) and the angular drive element (2) connected to it.

[0041] Figure - 1 shows a cross-sectional view of the angular (chamfered) cutting device of the busbar (14) ends, which is the subject of the invention

[0042] Figure - 2 shows a perspective view of the busbar (14) with an angular end (14.1), which is the subject of the invention

[0043] Figure - 3 shows a top perspective view of the angular (chamfered) cutting device of the busbar (14) ends, which is the subject of the invention

[0044] Angular (chamfered) cutting configuration of the busbar (14) ends, which is the subject of the invention, consists main parts of; vertical punch (9) shaped for 90° separation of the said busbar (14), vertical drive element (1) positioned as a cylinder that moves the said vertical punch (9) in the vertical direction, right and left angular plane punch (10), shaped for cuts in angular planes, angular drive element (2) positioned as a cylinder that moves the right and left angular plane punch (10) in the angular plane, tool top plate (3), to which the upper tool elements are connected, pushpin (4) to which the vertical punch (9) and the right and left angular plane punch (10) are connected, tool main plate (5), to which tool elements and bearings are connected, the lower blade (6), which enables cuts to be made on an angular and perpendicular plane, knife support (7) to which the said lower blade (6) is connected as its support, punch bed (8), which is formed as a bearing element to protect the cutting gaps and prevent the vertical punch (9) and the right and left angular plane punch (10) from breaking, press (13), which serves as a drive element together with the vertical drive element (1) and the angular drive element (2) connected to it, connecting plate (11) that connects the tool to the press (13), the spring (12) that protects the cutting cavities whose pressing process is completed and pushes the vertical punch (9) and the right and left angular plane punch (10) to the back position, profiled busbar (14) to be cut to the desired length, angular end (14.1) formed as a result of cutting the said busbar (14) in order to facilitate its placement into the plastic insulator.

[0045] In the production method of the invention, initially the busbar (14) is as it comes out of the rollform, and the vertical punch (9) and the right and left angular plane punch (10) are in the highest position.

[0046] Afterwards, a total of 3 drive elements, including 1 vertical drive element (1), 2 angular drive elements (2) positioned on the right and left (hydraulic cylinder, pneumatic cylinder, etc.), and lower knife (6) in three different planes are synchronized. First, cuts are made on 45-degree angular planes by moving the burrs, but the burrs are cut only in a way that reaches the perpendicular plane, not completely. Afterwards, the lower knife (6) in the angular plane are withdrawn and the lower knife (6) in the vertical plane is moved, the busbar (14) is divided into two, and the resulting burr is dropped down in one piece.

[0047] The copper conductor profile known as phase rail or busbar (14) used in energy distribution systems known as busbars is produced by the rollforming method. Then, the ends must be cut at an angle (chamfered) to make it easier to place them in the desired length and into the plastic insulator where they will be placed.

[0048] In order for the cut to be smooth, it must be ensured that the gap between the vertical punch (9) and the right and left angular plane punch (10) and the lower knife (6) is always equal. This is done by placing the vertical punch (9) and the right and left angular plane punch (10) through the punch bed (8).

[0049] In addition, the cutting group must be operated synchronously so that the vertical punch (9) and the right and left angular plane punch (10) do not touch each other and break, and the cutting burr is easily evacuated. To do this, first the tool is driven into the press (13) and connected to the press (13) with the connecting plate (11). The busbar (14) coming out of the rollform is passed through the right and left lower pocket knives (6) attached to the knife support (7) of the desired length and is made ready for cutting.

[0050] Then, by moving the right and left punches (10) attached to the fastener (4) with the angular drive element (2) moving in the angular plane, the end corners of the busbar (14) are cut at an angle (chamfered) so that no burrs fall.

[0051] When the angular cutting is completed, the angular drive element (2) is pulled back, while the right and left angular plane punches (10) are pushed back by the spring (12).

[0052] The fact that the right and left angular plane punches (10) are behind is detected by sensors, and the vertical punch (9) working vertically with the vertical drive cylinder (1) is moved, thus cutting the busbar (14) in the vertical plane and the burr is dropped down in one piece. Thus, the busbar (14) has the desired length and an angular end (14.1) with beveled corners cut for ease of installation.

[0053] Afterwards, the vertical drive element (1) is retracted, the vertical punch (9) is pushed back by the spring (12) and the busbar (14) is driven forward again for a new cut.

Claims

CLAIMS1. The invention is an angular (chamfered) cutting device of the ends of the busbar (14), which facilitates the placement of the copper conductor sheet, known as the phase rail or busbar (14), used in energy distribution systems known as busbars, into the plastic insulator where it will be placed in production by the roll forming method, characterized in that; comprises vertical punch (9) shaped for 90° separation of the said busbar (14), vertical drive element (1) positioned as a cylinder that moves the said vertical punch (9) in the vertical direction, right and left angular plane punch (10) shaped for cuts in the angular plane, angular drive element (2) positioned as a cylinder that moves the said right and left angular plane punch (10) in the angular plane, tool main plate (5) to which tool elements and bearings are connected, lower knife (6) that allows cuts to be made in angular and perpendicular planes, press (13) serves as a drive element together with the vertical drive element (1) and the angular drive element (2) connected to it.

2. An angular (chamfered) cutting device of the ends of the busbar (14) according to claim 1 ; punch bed (8), which is formed as a bearing element to protect the cutting gaps and prevent the vertical punch (9) and the right and left angular plane punch (10) from breaking.

3. An angular (chamfered) cutting device of the ends of the busbar (14) according to any preceding claims; pushpin (4) to which the vertical punch (9) and the right and left angular plane punch (10) are connected.

4. An angular (chamfered) cutting device of the ends of the busbar (14) according to any preceding claims; tool top plate (3), to which the upper tool elements are connected.

5. An angular (chamfered) cutting device of the ends of the busbar (14) according to any preceding claims; knife support (7) to which the said lower knife (6) is connected as its support.

6. An angular (chamfered) cutting device of the ends of the busbar (14) according to any preceding claims connecting plate (11) that connects the tool to the press (13).

7. An angular (chamfered) cutting device of the ends of the busbar (14) according to any preceding claims; the spring (12) that protects the cutting cavities whose pressing process is completed and pushes the vertical punch (9) and the right and left angular plane punch (10) to the back position.

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