Adjustable copper strip bending tool

Abstract

The invention discloses an adjustable copper strip bending tool which comprises a fixed base, a movable plate, fastening screws and cushion blocks, the fixed base is a step-shaped square bottom plate, the step divides the fixed base into a thick bottom plate and a thin bottom plate, and the thick bottom plate and the thin bottom plate are connected through a bolt. The edge of a step located at the junction of the thin bottom plate vertically and upwards extends to form a protruding blocking strip perpendicular to the upper surface of the thick bottom plate, screw holes are formed in the two side edges, adjacent to the thick bottom plate, of the upper surface of the thin bottom plate respectively, and the movable plate is fixedly suspended on the surface of the thin bottom plate through cushion blocks on the two sides through fastening screws. A through operation groove is formed in the thin bottom plate located below the movable plate, and a plurality of pairs of cushion blocks with different thicknesses are arranged, so that different distances can be formed between the bottom surface of the fixed movable plate and the top surface of the barrier strip. The copper strip bending device can be repeatedly installed, is firm and reliable, is convenient to disassemble, can easily complete the bending operation of a copper strip, is convenient and reliable to use, and can adjust the height of a copper strip bending plane and the distance of a bonding pad.

Description

Technical Field

[0001] The invention relates to the field of electronic assembly work, in particular to a bending tool used before copper strip welding. Background Art

[0002] In electronic assembly work, aluminum substrates are often connected to circuit boards. In order to ensure sufficient current flow capacity, 0.4mm thin silver-plated copper strips are usually used to interconnect and weld the two. When the aluminum substrate and the circuit board are in the same plane, traditional bending tools can be used to bend multiple copper strips into a uniform shape to ensure the consistency of bending and welding work. Figure 1 The middle one is the traditional bending tooling. Figure 2 However, the traditional bending tooling can only be applied to a single application scenario. If the pad spacing between the aluminum substrate and the circuit board changes or the aluminum substrate and the circuit board are not on the same plane, the traditional bending tooling is no longer applicable.

[0003] In actual electronic assembly work, aluminum substrates and circuit boards are often on different planes, and ordinary bending tools are no longer applicable. If special tools are designed for bending work in each work scenario, it will inevitably increase the manpower, material resources and time costs of tool design and processing. Summary of the invention

[0004] In order to improve the adaptability of the tooling to various application scenarios, the present invention proposes an adjustable copper strip bending tooling, which can adjust the height of the copper strip bending plane and the distance between the pads.

[0005] The present invention is implemented as follows: an adjustable copper strip bending tool comprises a fixed base, a movable plate, a fastening screw and a pad. The fixed base is a stepped square base plate, and the step divides the fixed base into a thick base plate and a thin base plate. On the thick base plate, the step edge located at the junction with the thin base plate extends vertically upward to form a raised baffle perpendicular to the upper surface of the thick base plate, and the top surface of the baffle is a smoothly transitioned arc surface. On the upper surface of the thin base plate, screw holes are respectively opened on the two side edges adjacent to the thick base plate, and through holes are also correspondingly provided on the two long strip pads and the square movable plate. The movable plate is suspended on the surface of the thin base plate through the pads on both sides by fastening screws, and the side edges of the movable plate rushing toward the step are smoothly transitioned arc surfaces, and a through operating groove is opened on the thin base plate located below the movable plate. The pads are multiple pairs of different thicknesses, so that the bottom surface of the fixed movable plate can form different distances with the top surface of the baffle.

[0006] On the thin bottom plate, baffles are respectively arranged on both side edges adjacent to the thick bottom plate, and the cushion block and the movable plate are closely attached to the inner side of the baffles and fixed between the two baffles.

[0007] The through hole on the movable plate is a long through hole, which can adjust the horizontal distance between the movable plate and the step.

[0008] The operating slot extends into the thick bottom plate.

[0009] The advantages and technical effects of the present invention are as follows: it can be installed repeatedly, is firm and reliable, and is easy to disassemble. It is suitable for a variety of application scenarios, can easily complete the bending operation of the copper strip, and is easy and reliable to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of a common bending tool in the prior art;

[0011] Figure 2 It is a schematic diagram of a copper strip after bending in the prior art;

[0012] Figure 3 It is a structural schematic diagram of the adjustable copper strip bending tool of the present invention;

[0013] Figure 4 It is a schematic diagram of the bottom structure of the adjustable copper strip bending tool of the present invention;

[0014] Figure 5 is a cross-sectional schematic diagram of the adjustable copper strip bending tool of the present invention;

[0015] Figure 6 It is a schematic diagram of the bending effect of pads of different thicknesses of the adjustable copper strip bending tool of the present invention;

[0016] Figure 7 It is a schematic diagram of the bending effect of different movable plate positions of the adjustable copper strip bending tool of the present invention. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation methods described herein are only used to explain the present invention and are not used to limit the present invention.

[0018] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by terms such as “upper”, “middle”, “lower”, “inside”, “outside”, and “both sides” are based on the orientations or positional relationships shown in the accompanying drawings, and are only simplified descriptions for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] like Figure 1-5 As shown, the adjustable copper strip bending tool of the present invention comprises a fixed base 1, a movable plate 2, a fastening screw 3 and a cushion block 4. The fixed base 1 is a stepped square bottom plate. The step divides the fixed base 1 into two parts, a thick bottom plate 11 and a thin bottom plate 12. On the thick bottom plate 11, the edge of the step located at the junction with the thin bottom plate 12 extends vertically upward to form a raised baffle 13 perpendicular to the upper surface of the thick bottom plate 11. The top surface of the baffle 13 is a smoothly transitioned arc surface. On the upper surface of the thin bottom plate 12, the baffle 13 is perpendicular to the upper surface of the thick bottom plate 11. Screw holes are respectively provided on the two adjacent side edges of 11, and through holes are also provided on the two long strip-shaped pads 4 and the square movable plate 2. The movable plate 2 is suspended on the surface of the thin bottom plate 12 through the pads 4 on both sides by fastening screws 3. The side of the movable plate 2 rushing toward the step is a smoothly transitioned arc surface. A through operating groove 15 is provided on the thin bottom plate 12 located below the movable plate 2. The pads 4 are multiple pairs of different thicknesses, so that the bottom surface of the fixed movable plate 2 can form different distances with the top surface of the baffle 13.

[0021] Preferably, baffles 5 are respectively provided on both side edges of the thin bottom plate 12 adjacent to the thick bottom plate 11 , and the cushion block 4 and the movable plate 2 are closely attached to the inner side of the baffles 5 and fixed between the two baffles 5 .

[0022] Preferably, the through hole on the movable plate 2 is a long through hole 21, which can adjust the horizontal distance between the movable plate 2 and the step.

[0023] Preferably, the operating groove 15 extends into the thick bottom plate 11 .

[0024] The present invention can be installed repeatedly and repeatedly, is firm and reliable, and is easy to disassemble. It is suitable for various application scenarios and can easily complete the bending operation of the copper strip.

[0025] In actual application scenarios, the electrical workers need to do some preparatory work first, adjust the position of the movable plate and the thickness of the pad, and tighten the fixing screws. The electrical workers need to first weld the copper strip 21 to the aluminum substrate 20, and then place the aluminum substrate 20 on the upper surface of the thick bottom plate 11 of the fixed base 1, bend the copper strip 21 along the baffle 13, move the aluminum substrate 20, adjust the copper strip 21 to the bottom of the movable plate 2, and then bend the copper strip 21 along the movable plate 2 to the smoothly transitioning arc surface of the step through the operating slot 15. In this way, the bending work is completed twice. After multiple operations, the consistency of the bending angle can be guaranteed. The effect after completion is as follows: Figure 5 shown.

[0026] When there is a height difference between the aluminum substrate 20 and the circuit board in the application scenario, the electrical installation personnel can select pads 4 of different thicknesses to be installed on the thin bottom plate 12 of the fixed base 4, such as Figure 6 Then install the movable plate 2 and fasten them to the thin base plate 12 by fastening screws 3. In this way, the height of the welding surface at both ends of the copper strip 21 can be adjusted.

[0027] The movable plate 2 is provided with a long through hole 21, such as Figure 7 As shown, according to different application requirements, the electrical installation personnel can adjust the horizontal position of the movable plate 2 and then the position of the bending point to achieve the purpose of adjusting the distance of the copper strip welding surface.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An adjustable copper strip bending tool, characterized in that: The invention comprises a fixed base (1), a movable plate (2), a fastening screw (3) and a cushion block (4); the fixed base (1) is a stepped square bottom plate; the steps divide the fixed base (1) into two parts, a thick bottom plate (11) and a thin bottom plate (12); on the thick bottom plate (11), the edge of the step located at the junction with the thin bottom plate (12) extends vertically upward to form a raised stop bar (13) perpendicular to the upper surface of the thick bottom plate (11); the top surface of the stop bar (13) is a smoothly transitioned arc surface; on the upper surface of the thin bottom plate (12), two portions adjacent to the thick bottom plate (11) are The side portions are respectively provided with screw holes, and corresponding through holes are also provided on the two long strip-shaped pads (4) and the square movable plate (2). The movable plate (2) is suspended on the surface of the thin bottom plate (12) through the pads (4) on both sides by fastening screws (3). The side of the movable plate (2) facing the step is a smoothly transitioned arc surface. A through operating groove (15) is provided on the thin bottom plate (12) below the movable plate (2). The pads (4) are multiple pairs of different thicknesses, so that the bottom surface of the fixed movable plate (2) can form different distances with the top surface of the blocking bar (13).

2. The adjustable copper strip bending tool according to claim 1, characterized in that: Baffles (5) are respectively arranged on the two side edges of the thin bottom plate (12) that are adjacent to the thick bottom plate (11), and the cushion block (4) and the movable plate (2) are closely attached to the inner side of the baffles (5) and fixed between the two baffles (5).

3. The adjustable copper strip bending tool according to claim 1, characterized in that: The through hole on the movable plate (2) is a long through hole (21), which can adjust the horizontal distance between the movable plate (2) and the step.

4. The adjustable copper strip bending tool according to claim 1, characterized in that: The operating groove (15) extends into the thick bottom plate (11).

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