Diode lead lossless bending forming mechanism

Abstract

The utility model belongs to the technical field of diode lead forming equipment, and particularly relates to a diode lead lossless bending forming mechanism. The bending device comprises a bending head, and one end of the bending head is rotationally connected with a pressing roller; a bending head is connected into the sliding groove in a sliding manner; the driving motor is arranged at one end of the chute; the output end of the driving motor is connected with one end, away from the pressing roller, of the bending head; the side face of the opening and closing opening of the wire clamping die corresponds to a pressing roller of the bending head, and the pressing roller is used for reciprocating along the side face of the wire clamping die. The threading pipe is arranged on the side, away from the bending head, of the wire clamping die. And the cutting device is arranged between the wire clamping die and the threading pipe. The die is used for solving the problem that the lead is easy to damage when the lead is bent by a conventional die. The pressing roller rotationally connected to the bending head is used for making contact with the surface of the lead, the pressing roller can drive the lead to be bent in the rotating process, the surface of the lead is prevented from being damaged, the cutting device is located between the wire clamping die and the threading pipe and can cut off the lead through shearing force, cutting and bending are formed at a time, and efficiency is high.

Description

Technical Field

[0001] This utility model belongs to the technical field of diode lead forming equipment, specifically relating to a non-destructive bending forming mechanism for diode leads. Background Technology

[0002] In electronic components, a diode is a device with two electrodes that allows current to flow in only one direction. The electrode leads of a diode are two copper wires, and these leads need to be bent into different shapes depending on the application.

[0003] Currently, large-angle bending of diode leads is mainly achieved in two ways. One is by manual bending, but manual operation is inefficient and it is not easy to unify the product standards after forming. The other is by forming with a mold and extrusion, such as the patent with publication number CN104368730A entitled "A Diode Bending and Shaping Tooling". In this patent, the diode lead is embedded in the bending seat, and then the bending component is driven by a motor to bend the diode lead in cooperation with the bending seat. However, this bending method is prone to damage to the lead surface when the bending angle is large, thereby reducing the yield of diode leads. Utility Model Content

[0004] To address the shortcomings of existing technologies, a non-destructive bending and forming mechanism for diode leads is provided to solve the problem that conventional mold bending of leads easily damages the leads.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A diode lead non-destructive bending and forming mechanism, comprising:

[0006] A bending head, one end of which is rotatably connected to a pressure roller;

[0007] A slidable groove in which the bending head is slidably connected;

[0008] A drive motor is located at one end of the slide groove, and the output end of the drive motor is connected to the end of the bending head away from its pressure roller, for driving the bending head to reciprocate along the slide groove;

[0009] A wire clamping die, wherein the side of the opening of the wire clamping die is correspondingly arranged with the pressure roller of the bending head, and the pressure roller is used to reciprocate along the side of the wire clamping die to push and bend the lead wire extending from the side.

[0010] A threading tube is provided on the side of the wire clamping mold away from the bending head, and the threading tube corresponds to the opening of the wire clamping mold;

[0011] A cutting device is disposed between the wire clamping mold and the wire threading tube.

[0012] Compared with existing technologies, the above technical solutions have the following beneficial effects:

[0013] The pressure roller, which is rotatably connected to the bending head, contacts the lead wire surface. The pressure roller can drive the lead wire to bend during rotation, avoiding damage to the lead wire surface. The drive motor drives the bending head to reciprocate in the slide groove, which in turn drives the pressure roller to contact the lead wire on the side of the clamping die, causing the lead wire to bend. The cutting device is located between the clamping die and the wire tube and can use shearing force to cut the lead wire, realizing simultaneous cutting and bending, one-time forming, and high efficiency.

[0014] Based on the above technical solution, the embodiments of this application can be further improved as follows:

[0015] In one embodiment, the cutting device includes:

[0016] Guide groove;

[0017] A cutter is slidably connected in the guide groove, and the bottom edge of the cutter is fitted between the end face of the threading tube and the side face of the clamping mold.

[0018] A lever component, one end of which abuts against the top of the cutter, and the other end of which is connected to a cam drive mechanism for driving the lever component to reciprocate around its center.

[0019] In one embodiment, the cutting device further includes:

[0020] A crimping block is connected to the top of the cutter, and a gap is formed between the crimping block and the top of the guide groove;

[0021] A compression spring is disposed in the gap between the pressing block and the top of the guide groove, and is used to push the cutter upward;

[0022] A push rod is disposed on the top of the pressing block, and the top of the push rod has an arc-shaped surface;

[0023] A support arm is provided at one end of the lever, and the bottom surface of the support arm abuts against the arc-shaped surface.

[0024] In one embodiment, the bending head includes:

[0025] The bending body has mounting holes on it;

[0026] The movable component is rotatably connected to the bottom end of the bending body;

[0027] The pressure roller is rotatably connected to one end of the movable part, and the outer peripheral contour of the pressure roller protrudes beyond the outer contour of the corresponding end of the movable part.

[0028] An elastic reset element is disposed between the movable element and the bending body, and is used to push the pressure roller outward.

[0029] In one embodiment, the movable element includes:

[0030] Two movable plates are disposed on both sides of the bending body and are hinged to the bending body. The pressure roller is rotatably connected between the two movable plates at the end away from the bending body.

[0031] A connecting piece is provided at a distance from the bending body and is connected between the two movable pieces. One end of the elastic reset member abuts against the connecting piece.

[0032] In one embodiment, the bottom of the bending body extends outward to form an extension portion, and the movable member is movably connected to the extension portion.

[0033] In one embodiment, an L-shaped bracket is also included. One end of the L-shaped bracket is connected to the side of the slide groove away from the wire clamping mold, and the other end is disposed on the operating table. At least one waist-shaped hole is provided on the other end of the L-shaped bracket, and the length direction of the waist-shaped hole is directed towards the wire clamping mold.

[0034] In one embodiment, limiting plates are respectively provided on both sides of the L-shaped bracket to abut against the L-shaped bracket, so as to form a limiting groove pointing towards the clamping mold, which is used to limit the fixed position of the L-shaped bracket.

[0035] In one embodiment, at least one fastening bolt is screwed through the limiting plate, and the end of the fastening bolt abuts against the L-shaped bracket.

[0036] In one embodiment, an air blowing pipe is also included, disposed above the opening of the clamping mold. Attached Figure Description

[0037] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0038] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0039] Figure 2 for Figure 1 A schematic diagram of the overall structure from another perspective.

[0040] Figure 3 for Figure 1 A schematic diagram of the overall structure of the center bend.

[0041] Figure label:

[0042] 1. Bending head; 2. Slide groove; 3. Drive motor; 4. Wire clamping mold; 5. Wire threading tube; 6. Cutting device; 7. L-shaped bracket; 8. Waist-shaped hole; 9. Limiting plate; 10. Fastening bolt; 11. Air blowing pipe;

[0043] 101. Bending body; 102. Moving part; 103. Pressure roller; 104. Elastic return part; 105. Mounting hole; 106. Extension;

[0044] 1021. Movable piece; 1022. Connecting piece;

[0045] 601. Guide groove; 602. Cutter; 603. Lever; 604. Pressing block; 605. Compression spring; 606. Top rod; 607. Arc-shaped surface; 608. Support arm; Detailed Implementation

[0046] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0047] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0048] In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0049] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly defined.

[0050] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0051] Example

[0052] like Figure 1 As shown, the diode lead non-destructive bending and forming mechanism provided by this utility model includes: a bending head 1, a slide groove 2, a drive motor 3, a wire clamping mold 4, a wire threading tube 5, and a cutting device 6.

[0053] One end of the bending head 1 is rotatably connected to a pressure roller 103;

[0054] Specifically, the bending head 1 includes: a bending body 101, a movable part 102, a pressure roller 103, and an elastic reset part 104.

[0055] The bending body 101 is strip-shaped, and the movable part 102 is rotatably connected to the bending body 101, so that the movable part can rotate around the hinge to form a swing. The pressure roller 103 is rotatably connected to one end of the movable part 102. Specifically, the pressure roller 103 is connected to the bottom end of the movable part 102 on the outer side, that is, on the side away from the bending body 101, to ensure that the pressure roller 103 preferentially contacts the outer surface of the lead wire. The outer peripheral contour of the pressure roller 103 protrudes from the outer contour of the corresponding end of the movable part 102 to avoid the movable part 102 scraping against the lead wire and to ensure that the pressure roller 103 is always in contact with the lead wire.

[0056] The elastic reset member 104 is disposed between the movable member 102 and the bending body 101, and is used to push the pressure roller 103 outward. By setting the elastic reset member 104, the pressure roller 103 can be pushed outward at all times, keeping the pressure roller 103 in contact with the lead wire at all times during rotation. The elastic reset member 104 can be implemented by a compression spring 605.

[0057] Specifically, pin holes or guide posts can be provided at the connection points between the elastic reset member 104 and the movable member 102 and the bending body 101 at both ends to fix the two ends of the elastic reset member 104.

[0058] The outer contour of the pressure roller 103 is larger than that of the movable part 102, and its outer peripheral surface contacts the lead wire first. The pressure roller 103, which is rotatably connected to the movable part 102, contacts the surface of the lead wire. The pressure roller 103 can drive the lead wire to bend during rotation, avoiding damage to the surface of the lead wire. At the same time, the movable part 102 is hinged to the bending body 101, so that the pressure roller 103 can swing with the movable part 102, leaving a deflection margin for the pressure roller 103. The elastic reset part 104 can push the pressure roller 103 toward the lead wire, ensuring that the pressure roller 103 is in contact with the lead wire at all times during the bending process.

[0059] The bending head 1 is slidably connected in the chute 2. Specifically, the bending body 101 of the bending head 1 is matched in the chute 2 and fixed to the slider in the chute 2 through the mounting hole 105 on the bending body 101. The drive motor 3 is set at one end of the chute 2. The chute 2 is vertical. The drive motor 3 is set at the top of the chute 2. The output end of the drive motor 3 is connected to the end of the bending head 1 away from its pressure roller 103. Specifically, since the bending head 1 is connected to the slider in the chute 2, the output end of the drive motor 3 is connected to the slider, thereby driving the bending head 1 to move up and down, that is, to move back and forth along the chute 2.

[0060] The side of the opening of the wire clamping mold 4 is correspondingly arranged with the pressure roller 103 of the bending head 1, that is, the circumferential surface of the pressure roller 103 is tangent to the side of the wire clamping mold 4 near the pressure roller 103. Then, a gap is reserved between the pressure roller 103 and the side of the wire clamping mold 4 to allow the lead wire to exist. The pressure roller 103 is used to move back and forth along the side of the wire clamping mold 4 to push and bend the lead wire extending from the side.

[0061] The threading tube 5 is located on the side of the wire clamping mold 4 away from the bending head 1. The threading tube 5 corresponds to the opening of the wire clamping mold 4. The threading tube 5 guides the lead wire to be cut accurately into the wire clamping mold 4.

[0062] The cutting device 6 is disposed between the wire clamping mold 4 and the wire threading tube 5. Specifically, the cutting device 6 includes: a guide groove 601; a cutter 602 and a lever 603.

[0063] The guide groove 601 has a similar structure to the slide groove 2 and is vertically arranged on the side of the wire clamping mold 4 away from the slide groove 2. A slider is also provided in the wire groove. The cutter 602 is installed on the slider and is slidably connected in the guide groove 601. The bottom edge of the cutter 602 is matched and embedded between the end face of the wire tube 5 and the side face of the wire clamping mold 4. That is, the two sides of the cutter 602 are in contact with the end face of the wire tube 5 and the side face of the wire clamping mold 4, respectively. The shearing force is used to cut the lead wire in the wire tube 5, realizing one-time cutting and bending.

[0064] One end of the lever 603 abuts against the top of the cutter 602, and the other end is connected to a cam drive mechanism for driving the lever 603 to reciprocate around its center. The cam drive mechanism uses the eccentricity of the cam or the high and low points on the cam to push one end of the lever 603 in contact with it, so that it reciprocates around its central rotation center, thereby driving the cutter 602 to reciprocate in the guide groove 601 to complete the cutting.

[0065] The pressure roller 103, which is rotatably connected to the bending head 1, contacts the lead wire surface. The pressure roller 103 can drive the lead wire to bend during rotation, avoiding damage to the lead wire surface. The drive motor 3 drives the bending head 1 to reciprocate in the slide groove 2, thereby driving the pressure roller 103 to contact the lead wire on the side of the wire clamping mold 4, causing the lead wire to bend. The cutting device 6 is located between the wire clamping mold 4 and the wire threading tube 5 and can use shearing force to cut the lead wire, realizing simultaneous cutting and bending, one-time forming, and high efficiency.

[0066] The cutting device 6 further includes: a pressing block 604, a compression spring 605, a top rod 606, and a support arm 608.

[0067] The crimping block 604 is connected to the top of the cutter 602. The crimping block 604 is 7-shaped. Its bottom is connected to the cutter 602 or to the slider in the guide groove 601 to drive the cutter 602 to move up and down. The top of the crimping block 604 is bent to the top of the guide groove 601, so that there is a gap between the crimping block 604 and the top of the guide groove 601.

[0068] A compression spring 605 is disposed in the gap between the pressing block 604 and the top of the guide groove 601, and is used to push the cutter 602 upward. The compression spring 605 can drive the cutter 602 to move upward and be in a suspended reset state. When the cutter 602 moves downward, the cutting is completed.

[0069] A push rod 606 is disposed on the top of the pressing block 604. The top of the push rod 606 forms an arc-shaped surface 607. A support arm 608 is disposed at the end of the lever 603 away from the cam drive mechanism. The bottom surface of the support arm 608 abuts against the arc-shaped surface 607. During the reciprocating rotation of the lever 603, the bottom surface of the support arm 608 is driven to contact and move with the arc-shaped surface 607. By setting the arc-shaped surface 607, the sliding between the bottom surface of the support arm 608 and the arc-shaped surface 607 is not stiff, ensuring smooth sliding.

[0070] The movable component 102 includes two movable pieces 1021 and a connecting piece 1022.

[0071] Two movable pieces 1021 are disposed on both sides of the bending body 101. The movable pieces 1021 are hinged to the bending body 101. The pressure roller 103 is rotatably connected between the two movable pieces 1021 at one end away from the bending body 101, specifically located on the outer side of the bottom end of the two movable pieces 1021. The connecting piece 1022 is spaced apart from the bending body 101. This space is used to place the elastic reset member 104 and is connected between the two movable pieces 1021. The connecting piece 1022 can be integrally formed with the movable pieces 1021. One end of the elastic reset member 104 abuts against the connecting piece 1022.

[0072] The bending body 101 has mounting holes 105 for easy installation and positioning. The movable part 102 is located at the end of the bending body 101. The movable part 102 located at the end makes it easier to make priority contact with the lead wire.

[0073] Similarly, the bottom of the bending body 101 extends outward to form an extension 106, which is located on the end side of the bending body 101, and the movable member 102 is movably connected to the extension 106.

[0074] The protruding extension 106 makes it easier to protrude the movable part 102 provided on the extension 106, so that the movable pressure roller 103 on the machine can contact the lead wire first.

[0075] In this embodiment, an L-shaped bracket 7 is also included. One end of the L-shaped bracket 7 is connected to the side of the slide groove 2 away from the clamping mold 4, and the other end is set on the operating table. That is, the vertical end of the L-shaped bracket 7 is connected and fixed to the back of the slide groove 2, and the horizontal end of the L-shaped bracket 7 is fixed on the operating table.

[0076] Specifically, at least one waist-shaped hole 8 is provided on the other end of the L-shaped bracket 7. The L-shaped bracket 7 is fixed on the operating table by fasteners that cooperate with the waist-shaped hole 8. The waist-shaped hole 8 is set along the length direction pointing towards the clamping mold 4.

[0077] By setting the waist-shaped hole 8, the position of the L-shaped bracket 7, the slide 2, and the bending head 1 can be adjusted, and the distance between them and the clamping mold 4 can be adjusted, thus making it suitable for lead wires of different specifications and sizes.

[0078] To restrict the movement direction of the L-shaped bracket, limiting plates 9 are respectively provided on both sides of the L-shaped bracket 7 to abut against the L-shaped bracket 7, forming a limiting groove pointing towards the clamping mold 4, which is used to restrict the fixed position of the L-shaped bracket 7, so that the L-shaped bracket 7 can only move in the direction of approaching or moving away from the clamping mold 4, so as to adjust the gap between the pressure roller 103 and the clamping mold 4.

[0079] At least one fastening bolt 10 is screwed through the limiting plate 9. The end of the fastening bolt 10 abuts against the L-shaped bracket 7. After the fastening bolt 10 is tightened, it abuts against the side of the L-shaped bracket 7, fixing the L-shaped bracket 7 in the limiting groove.

[0080] In this embodiment, an air blowing pipe 11 is also included, which is set above the opening of the wire clamping mold 4. The opening of the air blowing pipe 11 can be fixed above the opening of the wire clamping mold 4 by iron wire or the like, and connected to an external air source to supply air to the opening of the wire clamping mold 4. By setting the air blowing pipe 11, the lead wire after forming can be dropped.

[0081] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A non-destructive bending and forming mechanism for diode leads, characterized in that, include: A bending head, one end of which is rotatably connected to a pressure roller; A slidable groove in which the bending head is slidably connected; A drive motor is located at one end of the slide groove, and the output end of the drive motor is connected to the end of the bending head away from its pressure roller, for driving the bending head to reciprocate along the slide groove; A wire clamping die, wherein the side of the opening of the wire clamping die is correspondingly arranged with the pressure roller of the bending head, and the pressure roller is used to reciprocate along the side of the wire clamping die to push and bend the lead wire extending from the side. A threading tube is provided on the side of the wire clamping mold away from the bending head, and the threading tube corresponds to the opening of the wire clamping mold; A cutting device is disposed between the wire clamping mold and the wire threading tube.

2. The bending and forming mechanism according to claim 1, characterized in that, The cutting device includes: Guide groove; A cutter is slidably connected in the guide groove, and the bottom edge of the cutter is fitted between the end face of the threading tube and the side face of the clamping mold. A lever component, one end of which abuts against the top of the cutter, and the other end of which is connected to a cam drive mechanism for driving the lever component to reciprocate around its center.

3. The bending and forming mechanism according to claim 2, characterized in that, The cutting device further includes: A crimping block is connected to the top of the cutter, and a gap is formed between the crimping block and the top of the guide groove; A compression spring is disposed in the gap between the pressing block and the top of the guide groove, and is used to push the cutter upward; A push rod is disposed on the top of the pressing block, and the top of the push rod has an arc-shaped surface; A support arm is provided at one end of the lever, and the bottom surface of the support arm abuts against the arc-shaped surface.

4. The bending and forming mechanism according to claim 1, characterized in that, The bending head includes: The bending body has mounting holes on it; The movable component is rotatably connected to the bottom end of the bending body; The pressure roller is rotatably connected to one end of the movable part, and the outer peripheral contour of the pressure roller protrudes beyond the outer contour of the corresponding end of the movable part. An elastic reset element is disposed between the movable element and the bending body, and is used to push the pressure roller outward.

5. The bending and forming mechanism according to claim 4, characterized in that, The movable component includes: Two movable plates are disposed on both sides of the bending body and are hinged to the bending body. The pressure roller is rotatably connected between the two movable plates at the end away from the bending body. A connecting piece is provided at a distance from the bending body and is connected between the two movable pieces. One end of the elastic reset member abuts against the connecting piece.

6. The bending and forming mechanism according to claim 4, characterized in that, The bottom of the bending body extends outward to form an extension portion, and the movable component is movably connected to the extension portion.

7. The bending and forming mechanism according to claim 1, characterized in that, It also includes an L-shaped bracket, one end of which is connected to the side of the slide groove away from the wire clamping mold, and the other end is set on the operating table. At least one waist-shaped hole is opened on the other end of the L-shaped bracket, and the length direction of the waist-shaped hole is set towards the wire clamping mold.

8. The bending and forming mechanism according to claim 7, characterized in that, The L-shaped bracket has limiting plates on both sides that abut against it, forming limiting grooves pointing towards the clamping mold, which are used to limit the fixed position of the L-shaped bracket.

9. The bending and forming mechanism according to claim 8, characterized in that, At least one fastening bolt is screwed through the limiting plate, and the end of the fastening bolt abuts against the L-shaped bracket.

10. The bending forming mechanism according to any one of claims 1-9, characterized in that, It also includes an air blowing pipe, which is located above the opening of the clamping mold.

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