Bending jig

Abstract

The utility model relates to a bending jig, which is used for bending a PC (polycarbonate) insulating sheet and comprises a base; the limiting assembly is located on one side of the base and comprises a transverse limiting block and a longitudinal limiting block; the pressing plate assembly is located in the middle of the base and can lift and press the PC insulation sheet; and the turnover assembly is positioned on the other side of the base and is used for bending the PC insulating sheet. Compared with the prior art, the bending device has the advantages that the bending device can be suitable for PC insulating sheets of different sizes, thick PC insulating sheets can be bent easily, and the risk of breakage of finished products is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical jigs, in particular to a bending jig. Background Art

[0002] PC insulation sheets are generally divided into halogen and halogen-free, flame retardant and non-flame retardant. Its long-term temperature resistance is about 130 degrees. The colors are usually black, transparent, white frosted, etc. The thickness is generally between 0.1-2 mm. PC is more brittle than PET and PP insulation sheets, so the bending performance is weaker than the previous two, but the surface appearance of PC is very good, and the printing performance is excellent, so it is widely used in many structural parts that require surface appearance. PC insulation sheet raw materials are often used for mutual insulation of various components of electrical networks or as dielectrics (energy storage) of capacitors. The former requires a small relative dielectric constant, the latter requires a large relative dielectric constant, and both require a small dielectric loss tangent, especially for insulation materials used under high frequency and high voltage. In order to reduce dielectric loss, insulation materials with a small dielectric loss tangent are required. At present, PC is the largest in the field of insulation sheets, just like PET. It is widely used in power devices (such as power supply, computers, telecommunications, capacitors, inductors, resistors), automotive electronic modules (such as engines, wipers), power modules, computer applications (such as CPU, GPU, USICS, hard drives), and LED high-power lamp heat dissipation. Common brands include imported SABIC (GE) -FR series, and domestic brands include Longhua, Kanglongxin, etc.

[0003] For PC insulation sheets, the commonly used bending method is to use a die cutter to cut the material in half and then manually bend it along the knife mark. This processing method has the following disadvantages: (1) Different molds are required for different specifications, which will result in high mold costs; (2) There is a risk of breakage when bending the PC after it is cut in half; (3) Manual bending is slow and thicker sheets cannot be bent. Utility Model Content

[0004] The purpose of the utility model is to provide a bending jig in order to overcome the defects of the above-mentioned prior art, which can be suitable for PC insulating sheets of different sizes and can easily bend thicker PC insulating sheets without the risk of finished product breakage.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A bending jig for bending a PC insulating sheet, comprising:

[0007] Base;

[0008] A limiting assembly located on one side of the base, comprising a transverse limiting block and a longitudinal limiting block;

[0009] A pressing plate assembly located in the middle of the base and capable of lifting and pressing the PC insulating sheet;

[0010] And a folding component located on the other side of the base for bending the PC insulating sheet.

[0011] Furthermore, the folding assembly comprises:

[0012] a mounting block fixed to a side wall of the base;

[0013] A connecting plate rotatably connected to the mounting block;

[0014] A folding plate fixed on the connecting plate, with a gap between the connecting plate and the folding plate;

[0015] And a folding handle vertically connected to the side wall of the folding plate.

[0016] Furthermore, the folding handle is in a straight line shape.

[0017] Furthermore, the pressing plate assembly includes a pressing plate and a handle rotatably connected to the pressing plate. When the handle is folded downward, the pressing plate moves up and the pressing plate is in a raised state. At this time, the PC insulating sheet is placed under the pressing plate. When the handle is folded upward, the pressing plate moves down to press the PC insulating sheet.

[0018] Furthermore, the handle is an L-shaped handle, including a first handle and a second handle that are rotatably connected, the first handle is rotatably connected to the pressure plate, and the position of the rotation connection point is fixed.

[0019] Furthermore, a slider is connected between the first handle and the pressure plate. When the second handle is folded upward, the first handle is folded downward, driving the pressure plate to move downward and inward along the slider.

[0020] Furthermore, a buffer spring is connected between the pressing plate and the base. The spring is located on both sides of the connection between the pressing plate and the handle, and plays a buffering role in the process of lifting or pressing down the pressing plate, thereby preventing the PC insulating sheet from being damaged due to the instantaneous action of the pressing plate on the PC insulating sheet.

[0021] Furthermore, a connecting rod is rotatably connected to the side of the base at one side of the pressing plate away from the folding assembly, and when the pressing plate moves up, it drives the pressing plate to move outward, and when the pressing plate moves down, it drives the pressing plate to move inward. At the same time, the connecting rod can control the movement range of the pressing plate to prevent it from deflecting during the lifting or downward movement.

[0022] Furthermore, the transverse limit blocks are located on both sides of the base, and the longitudinal limit block is located between the transverse limit blocks.

[0023] Furthermore, the transverse limit block is provided with a first limit hole for adjusting and fixing the transverse limit block, and a first limit screw is provided in the first limit hole, and the transverse limit block is fixed when the first limit screw is tightened.

[0024] Furthermore, the longitudinal limit block comprises:

[0025] A first longitudinal limit block;

[0026] A slide groove provided on the base;

[0027] A plurality of second longitudinal limit blocks connected to the slide slot and having one end extending into the first longitudinal limit block;

[0028] And a second limiting hole is arranged on the first longitudinal limiting block and is used to fix the second longitudinal limiting block, a second limiting screw is arranged in the second limiting hole, the second limiting screw is in contact with the second longitudinal limiting block, and the second longitudinal limiting block is fixed when the second limiting screw is tightened.

[0029] Furthermore, the second longitudinal limit blocks are evenly arranged laterally.

[0030] Furthermore, the lateral limit block is provided with a scale.

[0031] Furthermore, the first longitudinal limit block is provided with a scale.

[0032] Compared with the prior art, the utility model has the following advantages:

[0033] (1) The bending jig of the utility model is provided with a transverse limit block and a longitudinal limit block, the size of which can be adjusted to adapt to PC insulation boards of different sizes. It is universal for all products and reduces mold costs.

[0034] (2) The bending jig of the utility model can bend the PC insulation board without cutting and punching, and there is no risk of the finished product breaking.

[0035] (3) The bending jig of the utility model presses the PC insulating board by the pressing plate and bends it by folding the folding plate. Under the action of the gravity of the pressing plate and the folding plate, relatively thick materials can also be easily bent without multiple folding.

[0036] (4) The bending jig of the utility model can fold multiple products at one time and has a high bending efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 A top view of the bending jig shown in Example 1;

[0038] Figure 2 It is a left side view of the bending jig shown in Example 1;

[0039] Figure 3 It is a schematic diagram of the structure when the pressing plate and the base shown in Example 1 are separated;

[0040] Figure 4 This is a schematic diagram of the structure when the pressing plate shown in Example 1 presses the base.

[0041] Description of the markings in the figure:

[0042] 1- Base;

[0043] 2-limiting assembly, 21-lateral limiting block, 211-first limiting hole, 22-longitudinal limiting block, 221-first longitudinal limiting block, 222-sliding groove, 223-second longitudinal limiting block, 224-second limiting hole;

[0044] 3-pressing plate assembly, 31-pressing plate, 32-handle, 321-first handle, 322-second handle, 33-spring, 34-connecting rod, 35-slider;

[0045] 4-folding assembly, 41-mounting block, 42-connecting plate, 43-folding plate, 44-folding handle. DETAILED DESCRIPTION

[0046] The utility model is described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments are implemented based on the technical solution of the utility model, and provide detailed implementation methods and specific operation processes, but the protection scope of the utility model is not limited to the following embodiments. In the following implementation methods or embodiments, if there is no special description of the functional components or structures, it indicates that they are all conventional components or conventional structures used in the field to achieve the corresponding functions.

[0047] It should be noted that in the description of the present invention, the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0048] 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 an indirect connection 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.

[0049] Example 1

[0050] A bending jig for bending PC insulating sheets, such as Figures 1 to 4 As shown, including:

[0051] Base 1;

[0052] The limiting assembly 2 located at one side of the base 1 includes a transverse limiting block 21 and a longitudinal limiting block 22;

[0053] A pressing plate assembly 3 located in the middle of the base 1 and capable of lifting and pressing the PC insulating sheet;

[0054] And a folding component 4 located on the other side of the base 1 for bending the PC insulating sheet.

[0055] In this embodiment, the folding assembly 4 includes:

[0056] A mounting block 41 fixed to the side wall of the base 1;

[0057] A connecting plate 42 rotatably connected to the mounting block 41;

[0058] A folding plate 43 fixed on the connecting plate 42, with a gap between the connecting plate 42 and the folding plate 43;

[0059] And a folding handle 44 vertically connected to the side wall of the folding plate 43.

[0060] In this embodiment, the folding handle 44 is in a straight line shape.

[0061] In this embodiment, the pressing plate assembly 3 includes a pressing plate 31 and a handle 32 rotatably connected to the pressing plate 31. When the handle 32 is folded downward, the pressing plate 31 moves upward, and the pressing plate 31 is in a raised state. At this time, the PC insulating sheet is placed under the pressing plate 31. When the handle 32 is folded upward, the pressing plate 31 moves downward to press the PC insulating sheet.

[0062] In this embodiment, the handle 32 is an L-shaped handle, including a first handle 321 and a second handle 322 that are rotatably connected. The first handle 321 is rotatably connected to the pressing plate 31, and the connection point is fixed.

[0063] In this embodiment, a slider 35 is connected between the first handle 321 and the pressing plate 31 . When the second handle 322 is folded upward, the first handle 321 is folded downward, driving the pressing plate 31 to move downward and inward along the slider 35 .

[0064] In this embodiment, a buffer spring 33 is connected between the pressing plate 31 and the base 1. The spring 33 is located on both sides of the connection between the pressing plate 31 and the handle 32, and plays a buffering role in the process of lifting or pressing down the pressing plate 31, thereby preventing the PC insulating sheet from being damaged due to the instantaneous action of the pressing plate 31 on the PC insulating sheet.

[0065] In this embodiment, the side of the pressing plate 31 away from the folding assembly 4 is rotatably connected to the side of the base 1 by a connecting rod 34. When the pressing plate 31 moves up, it drives the pressing plate 31 to move outward, and when the pressing plate 31 moves down, it drives the pressing plate 31 to move inward. At the same time, the connecting rod 34 can control the movement range of the pressing plate 31 to prevent it from deflecting during the lifting or downward movement.

[0066] In this embodiment, the transverse limit blocks 21 are located at two sides of the base 1 , and the longitudinal limit blocks 22 are located between the transverse limit blocks 21 .

[0067] In this embodiment, a first limiting hole 211 for adjusting and fixing the transverse limiting block 21 is provided on the transverse limiting block 21 , and a first limiting screw is provided in the first limiting hole 211 , and the transverse limiting block 21 is fixed when the first limiting screw is tightened.

[0068] In this embodiment, the longitudinal limit block 22 includes:

[0069] A first longitudinal limit block 221;

[0070] A slide groove 222 provided on the base 1;

[0071] A plurality of second longitudinal limit blocks 223 connected to the slide slot 222 and having one end extending into the first longitudinal limit block 221;

[0072] And a second limiting hole 224 is arranged on the first longitudinal limiting block 221 and is used to fix the second longitudinal limiting block 223. A second limiting screw is arranged in the second limiting hole 224. The second limiting screw is in contact with the second longitudinal limiting block 223. When the second limiting screw is tightened, the second longitudinal limiting block 223 is fixed.

[0073] In this embodiment, there are three second longitudinal limiting blocks 223 , which are evenly arranged in the transverse direction.

[0074] In this embodiment, the transverse limit block 21 is provided with scales.

[0075] In this embodiment, the first longitudinal limit block 221 is provided with a scale.

[0076] In this embodiment, the steps for using the bending fixture are as follows:

[0077] Fold the second handle 322 downward, fold the first handle 321 upward, drive the pressing plate 31 to rise, and move outward along the slider 35, control its moving distance through the connecting rod 34, put the PC insulating board on the base 1 below the pressing plate 31, and the PC insulating board is located between the folding plate 43 and the connecting plate 42, fold the handle 32 upward, move the pressing plate 31 downward and press the PC insulating board. Adjust the position of the transverse limit block 21 so that it is located on both sides of the PC insulating board, and fix the transverse limit block 21 when tightening the first limit screw to prevent the PC insulating board from moving horizontally. Move the second longitudinal limit block 223 on the slide 222, adjust the size to be bent, and fix the second longitudinal limit block 223 when tightening the second limit screw to prevent the PC insulating board from moving longitudinally. Hold the folding handle 44, drive the folding plate 43 to rotate and fold, so that the PC insulating board is bent. Furthermore, a plurality of PC insulating boards can be placed on the base 1 below the pressing plate 31 at the same time, and the folding plate 43 can be driven to rotate and fold at the same time, so that a plurality of PC insulating boards can be bent at one time, thereby improving the bending efficiency.

[0078] The above description of the embodiments is to facilitate the understanding and use of the utility model by those skilled in the art. It is obvious that those familiar with the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the utility model is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the utility model without departing from the scope of the utility model should be within the scope of protection of the utility model.

Claims

1. A bending jig, characterized in that: Used for bending PC insulation sheets, including: Base (1); A limiting assembly (2) located on one side of the base (1), comprising a transverse limiting block (21) and a longitudinal limiting block (22); A pressing plate assembly (3) located in the middle of the base (1) and capable of being lifted to press the PC insulating sheet; And a folding component (4) located on the other side of the base (1) and used for bending the PC insulating sheet.

2. A bending jig according to claim 1, characterized in that: The folding assembly (4) comprises: A mounting block (41) fixed to a side wall of the base (1); a connecting plate (42) rotatably connected to the mounting block (41); A folding plate (43) fixed on the connecting plate (42); And a folding handle (44) vertically connected to the side wall of the folding plate (43).

3. A bending jig according to claim 2, characterized in that: The folding handle (44) is in a straight line shape.

4. A bending jig according to claim 1, characterized in that: The pressing plate assembly (3) comprises a pressing plate (31) and a handle (32) rotatably connected to the pressing plate (31).

5. A bending jig according to claim 4, characterized in that: The handle (32) is an L-shaped handle, comprising a first handle (321) and a second handle (322) that are rotatably connected, the first handle (321) is rotatably connected to the pressing plate (31), and the position of the rotation connection point is fixed.

6. A bending jig according to claim 4, characterized in that: A buffer spring (33) is connected between the pressing plate (31) and the base (1), and the spring (33) is located on both sides of the connection between the pressing plate (31) and the handle (32).

7. A bending jig according to claim 4, characterized in that: A connecting rod (34) is rotatably connected to the side of the base (1) at a side of the pressing plate (31) away from the folding assembly (4).

8. The bending jig according to claim 1, characterized in that: The transverse limit blocks (21) are located on both sides of the base (1), and the longitudinal limit blocks (22) are located between the transverse limit blocks (21).

9. The bending jig according to claim 1, characterized in that: The transverse limiting block (21) is provided with a first limiting hole (211) for adjusting and fixing the transverse limiting block (21), and a first limiting screw is provided in the first limiting hole (211).

10. The bending jig according to claim 1, characterized in that: The longitudinal limit block (22) comprises: A first longitudinal limit block (221); A slide groove (222) arranged on the base (1); A plurality of second longitudinal limit blocks (223) connected to the slide groove (222) and having one end extending into the interior of the first longitudinal limit block (221); And a second limiting hole (224) is arranged on the first longitudinal limiting block (221) and is used to fix the second longitudinal limiting block (223), and a second limiting screw is arranged in the second limiting hole (224).

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