Wire forming tool

Abstract

The invention relates to the technical field of PCB electronic assembly, in particular to a wire forming tool. Comprising a bottom plate for supporting the whole mechanism; the forming frame body moves on the bottom plate and is used for pushing a workpiece to be formed; the forming frame body comprises a bending assembly, a connecting rod assembly and a rotating assembly, and the bending assembly and the rotating assembly are connected through the connecting rod assembly; the first track is of an arc-shaped structure and is used for providing a movement track for a rotating assembly of the forming frame body; the second track is linear and is used for controlling the direction of a connecting rod assembly of the forming frame body, so that the forming frame body does not deviate; the third rails are of an arc-shaped structure, and the multiple third rails are arranged on the bottom plate and matched with the bending assemblies of the forming frame body to bend the workpiece; bending forming is conducted on the wires through rotation of the bearing, it can be ensured that each wire can achieve the 180-degree forming effect, and the consistency of the formed wires is high.

Description

Technical Field

[0001] The invention relates to the technical field of PCB circuit board electronic assembly, and in particular to a wire forming tool. Background Art

[0002] Among the many basic components of various aerospace systems, wires are important materials for transmitting electrical signals, with a large number of applications and a wide range of applications. Once a wire solder joint fails, it may cause the loss or error of electrical signal transmission, which may cause subsystem failure or even failure of the entire system mission, resulting in huge economic losses. Therefore, as the reliability of the system increases, the reliability requirements for wire solder joints are also getting higher and higher.

[0003] According to aerospace standards, wire welding methods include lap welding, hook welding, etc., but from the perspective of production efficiency and quality reliability, hook welding is considered the best way to weld wires. In this welding method, the wire should be wound 180° to 270° on the hook-shaped terminal. At present, a variety of hook-shaped terminal devices such as aerospace busbars and relays, as well as straight-pin devices such as MOS tubes, outlet power modules, and filters, all rely on wires to connect to printed circuit boards for electrical performance, and the welding method between the wires and device leads is all hook welding.

[0004] However, the traditional operation method has obvious problems. Operators usually use tweezers to bend and shape the wires according to their own skill level. This method not only has poor consistency of the wires after forming and low fit with the device leads, thus reducing the reliability of welding, but also the efficiency of manual forming is relatively low. Therefore, it is necessary to develop a new type of wire forming tooling to improve the consistency and efficiency of wire forming and meet the requirements of aerospace systems for high reliability of wire solder joints. Summary of the invention

[0005] The invention provides a wire forming tool, the purpose of which is to improve production efficiency.

[0006] To achieve the above object, the technical solution of the present invention is:

[0007] A wire forming tool, comprising:

[0008] The base plate provides support for the entire mechanism;

[0009] The forming frame moves on the bottom plate and is used to push the workpiece into shape;

[0010] The forming frame comprises a bending assembly, a connecting rod assembly and a rotating assembly, and the bending assembly and the rotating assembly are connected by the connecting rod assembly;

[0011] The first track is an arc-shaped structure, arranged on the bottom plate, and used to provide a motion track for the rotating assembly of the forming frame;

[0012] The second track is a straight track, which is arranged on the bottom plate and is used to control the direction of the connecting rod assembly of the forming frame so that the forming frame does not deviate;

[0013] The third track is an arc-shaped structure, and a plurality of them are arranged on the bottom plate, and cooperate with the bending assembly of the forming frame to bend the workpiece;

[0014] The limiting component is arranged on the bottom plate and is used for limiting the workpiece at the working position.

[0015] Furthermore, the bending assembly includes a first bending rod, a second bending rod, a third bending rod and a bending block; the first bending rod passes through the third track, and a bending block is provided at one end of the first bending rod, and the bending block rotates in the third track to bend the workpiece; the second bending rod is L-shaped and fixedly connected to the other end of the first bending rod; the third bending rod is fixedly connected to the other end of the second bending rod.

[0016] Furthermore, the rotating assembly includes a rotating rod, and the rotating rod rotates in the first track.

[0017] Furthermore, the connecting rod assembly includes a first connecting rod, a second connecting rod and a slider; the first connecting rod is fixedly connected to the rotating rod and the third bending rod; the second connecting rod is provided with a sleeve, which slides on the first connecting rod; the slider is fixedly set at one end of the second connecting rod, and the slider cooperates with the second track and moves within the second track.

[0018] Furthermore, the limiting assembly includes a limiting groove and a limiting column, the limiting groove is a long groove limited on both sides, and the limiting column is arranged at the center of the arc structure of the third track.

[0019] Furthermore, the cross section of the second track is trapezoidal.

[0020] Furthermore, the bending block is a bearing.

[0021] The beneficial effects achieved by the present invention are:

[0022] The invention discloses a wire forming tool. Through the design of a special tool, the bending block is a bearing. The wire is bent and formed by rotating the bearing, so that each wire can achieve a 180° forming effect and the wires after forming have high consistency. This avoids the problem of inconsistent forming caused by traditional manual operation and improves the quality and reliability of the product.

[0023] The present invention provides a wire forming tool, which can form multiple wires at one time, thus realizing batch forming of wires, which not only greatly improves production efficiency, but also reduces the workload of operators and reduces production costs.

[0024] The present invention provides a wire forming tool. During the tool design process, the gap between the bearing and the wire is controlled to ensure that the bearing does not squeeze the wire during the forming process, effectively avoiding the risk during the forming process. At the same time, the track groove and the slider are designed to ensure the smoothness and unobstructed rotation of the bearing, further improving the stability and safety of the forming process.

[0025] The present invention provides a wire forming tool, which can integrate a plurality of different types of forming tools and can meet the forming requirements of wires of different types and specifications, thus making the tool more widely applicable and flexible in practical applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0027] Figure 1 It is a schematic diagram of the overall structure of a wire forming tool;

[0028] Figure 2 A top view of a wire forming tool;

[0029] Figure 3 A top view of a forming frame of a wire forming tool after rotation;

[0030] Figure 4 It is an enlarged view of a limiting component of a wire forming tool;

[0031] Figure 5 A diagram showing a workpiece of a wire forming tool being placed and bent;

[0032] Figure 6 It is a state diagram of a workpiece of a wire forming tool before and after bending;

[0033] In the figure:

[0034] 1. Bottom plate; 11. First track; 12. Second track; 13. Third track;

[0035] 2. Forming frame; 21. Bending assembly; 211. First bending rod; 212. Second bending rod; 213. Third bending rod; 214. Bending block; 22. Rotating assembly; 221. Rotating rod; 23. Connecting rod assembly; 231. First connecting rod; 232. Second connecting rod; 2321. Sleeve; 233. Sliding block;

[0036] 3. Limiting assembly; 31. Limiting groove; 32. Limiting column.

[0037] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0040] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0041] like Figures 1 to 6 As shown, a wire forming tool comprises: a bottom plate 1, which provides support for the entire mechanism;

[0042] Base plate 1 provides a stable support platform. All other components and parts are directly or indirectly mounted on base plate 1. The design of base plate 1 needs to ensure sufficient strength and rigidity to withstand the various forces and moments generated during the forming process while maintaining the stability and accuracy of the entire tooling.

[0043] The forming frame 2 moves on the bottom plate 1 to push the workpiece into shape; the forming frame 2 is the core component of the wire forming, which is responsible for pushing the workpiece (i.e., the wire) into shape. The forming frame 2 can accurately bend and shape the wire according to a predetermined trajectory and angle through a series of precisely designed mechanical structures.

[0044] The forming frame 2 includes a bending assembly 21 , a connecting rod assembly 23 and a rotating assembly 22 , and the bending assembly 21 and the rotating assembly 22 are connected via the connecting rod assembly 23 .

[0045] The first track 11 is an arc-shaped structure, which is arranged on the bottom plate 1 and is used to provide a motion track for the rotating assembly 22 of the forming frame 2; the first track 11 provides a motion track for the rotating assembly 22, ensuring that the rotating assembly 22 can rotate according to a predetermined path. This further ensures that the bending assembly 21 can bend the wire according to a predetermined angle and position.

[0046] The second track 12 is a linear track, which is arranged on the bottom plate 1 and is used to control the direction of the connecting rod assembly 23 of the forming frame 2 so that the forming frame 2 does not deviate; the second track 12 is a linear track, which controls the direction of the connecting rod assembly 23 of the forming frame 2 and ensures that the forming frame 2 does not deviate from the predetermined track during the movement. This helps to maintain the stability and accuracy of the entire forming process.

[0047] The cross section of the second rail 12 is designed to be trapezoidal, which can provide better guidance and stability and prevent the slider 233 from deflecting or shaking during movement.

[0048] The third rail 13 is an arc-shaped structure, and a plurality of the third rails 13 are provided on the bottom plate 1, and cooperate with the bending assembly 21 of the forming frame 2 to bend the workpiece; the third rail 13 is an arc-shaped structure, and cooperates with the bending assembly 21 to bend the workpiece (i.e., the wire). The number and position of the third rails 13 can be adjusted as needed to accommodate wires of different specifications and lengths.

[0049] The limiting assembly 3 is arranged on the base plate 1 and is used to limit the workpiece in the working position. The limiting assembly 3 is used to limit the workpiece in the working position to ensure that the wire will not shift or fall off during the forming process. This helps to improve the stability and accuracy of the forming process. The limiting assembly 3 includes a limiting groove 31 and a limiting column 32. The limiting groove 31 is a long groove with two-side limiting, which can accommodate and fix the position of the wire. The limiting column 32 is arranged at the center of the arc structure of the third track 13, which further ensures the stability and position accuracy of the wire during the bending process.

[0050] The bending assembly 21 includes a first bending rod 211, a second bending rod 212, a third bending rod 213 and a bending block 214; the first bending rod 211 passes through the third track 13, and a bending block 214 is provided at one end of the first bending rod 211, and the bending block 214 rotates in the third track 13 to bend the workpiece; the second bending rod 212 is L-shaped and fixedly connected to the other end of the first bending rod 211; the third bending rod 213 is fixedly connected to the other end of the second bending rod 212.

[0051] The bending assembly 21 is the part of the forming frame 2 that directly bends the wire. It includes a first bending rod 211, a second bending rod 212, a third bending rod 213 and a bending block 214. The first bending rod 211 passes through the third track 13 and rotates therein, driving the bending block 214 to bend the wire. The second bending rod 212 and the third bending rod 213 play a role of connection and support, ensuring the stability and rigidity of the bending assembly 21.

[0052] The bending block 214 is designed as a bearing, and by utilizing its rotational characteristics, it can ensure that the wire is subjected to uniform and stable force during the bending process, thereby achieving a precise bending angle.

[0053] The rotating assembly 22 includes a rotating rod 221, which rotates in the first track 11. The rotating assembly 22 is one of the power sources of the forming frame 2, and is responsible for providing the necessary rotational motion to drive the bending assembly 21 to bend. The rotating assembly 22 includes a rotating rod 221, which rotates in the first track 11. The arc structure of the first track 11 provides a predetermined motion trajectory for the rotating rod 221, thereby ensuring that the bending assembly 21 can bend the wire according to a predetermined angle and position.

[0054] The connecting rod assembly 23 includes a first connecting rod 231, a second connecting rod 232 and a slider 233; the first connecting rod 231 is fixedly connected to the rotating rod 221 and the third bending rod 213; the second connecting rod 232 is provided with a sleeve 2321, which slides on the first connecting rod 231; the slider 233 is fixedly set at one end of the second connecting rod 232, and the slider 233 cooperates with the second track 12 and moves within the second track 12.

[0055] The connecting rod assembly 23 is responsible for connecting the rotating assembly 22 and the bending assembly 21, and converting the rotational motion of the rotating assembly 22 into the linear or curved motion of the bending assembly 21. It ensures the correct movement and positioning of the forming frame 2 on the bottom plate 1.

[0056] The connecting rod assembly 23 includes a first connecting rod 231, a second connecting rod 232 and a slider 233. The first connecting rod 231 is fixedly connected to the rotating rod 221 and the third bending rod 213, realizing the transmission of the rotating and bending motions. The sleeve 2321 on the second connecting rod 232 slides on the first connecting rod 231, providing the necessary degree of freedom. The slider 233 cooperates with the second track 12 to ensure the stability and accuracy of the forming frame 2 during the movement.

[0057] The limiting assembly 3 includes a limiting groove 31 and a limiting column 32 . The limiting groove 31 is a long groove with two sides limited. The limiting column 32 is arranged at the center of the arc structure of the third track 13 .

[0058] like Figure 1 As shown, the present invention proposes a new method for wire hook welding, and the wires are stored in advance through special tooling.

[0059] In order to achieve batch forming of wires and high consistency of wire forming, a 180° wire forming tool is designed. The wires are bent and formed mainly by rotating the bearing. The overall structure of the tool is as follows: Figure 1 shown.

[0060] The wire is limited by the limiting component 3 on the tooling so that the wire can only be wound around the diameter of the notch. The inner diameter of the wire is the diameter of the cylinder at the notch position.

[0061] In order to ensure smooth and unobstructed rotation of the bearing, a second track 12 (track groove) is designed, and a slider 233 is placed in the track groove. The slider 233 is connected to the upper connecting rod, and the connecting rod is controlled to rotate only according to the trajectory of the first track 11 without offset, thereby avoiding poor rotation due to the non-unique bearing rotation path.

[0062] The above descriptions are only optional embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A wire forming tool, characterized in that: include: A bottom plate (1) provides support for the entire mechanism; A forming frame (2) moves on the bottom plate (1) and is used to push the workpiece into shape; The forming frame (2) comprises a bending assembly (21), a connecting rod assembly (23) and a rotating assembly (22), wherein the bending assembly (21) and the rotating assembly (22) are connected via the connecting rod assembly (23); The first track (11) is an arc-shaped structure, arranged on the bottom plate (1), and used to provide a motion track for the rotating component (22) of the forming frame (2); The second track (12) is linear and is disposed on the bottom plate (1) and is used to control the direction of the connecting rod assembly (23) of the forming frame (2) so that the forming frame (2) does not deviate; The third rail (13) is an arc-shaped structure, a plurality of which are arranged on the bottom plate (1) and cooperate with the bending assembly (21) of the forming frame (2) to bend the workpiece; The limiting assembly (3) is arranged on the base plate (1) and is used to limit the workpiece at a working position.

2. A wire forming tool according to claim 1, characterized in that: The bending assembly (21) comprises a first bending rod (211), a second bending rod (212), a third bending rod (213) and a bending block (214); the first bending rod (211) passes through the third track (13); one end of the first bending rod (211) is provided with a bending block (214); the bending block (214) rotates in the third track (13) to bend the workpiece; the second bending rod (212) is L-shaped and fixedly connected to the other end of the first bending rod (211); the third bending rod (213) is fixedly connected to the other end of the second bending rod (212).

3. A wire forming tool according to claim 2, characterized in that: The rotating assembly (22) comprises a rotating rod (221), and the rotating rod (221) rotates within the first track (11).

4. A wire forming tool according to claim 2, characterized in that: The bending block (214) is a bearing.

5. A wire forming tool according to claim 3, characterized in that: The connecting rod assembly (23) comprises a first connecting rod (231), a second connecting rod (232) and a sliding block (233); the first connecting rod (231) is fixedly connected to the rotating rod (221) and the third bending rod (213); the second connecting rod (232) is provided with a sleeve (2321) which slides on the first connecting rod (231); the sliding block (233) is fixedly provided at one end of the second connecting rod (232); the sliding block (233) cooperates with the second track (12) and moves within the second track (12).

6. A wire forming tool according to claim 1, characterized in that: The limiting assembly (3) comprises a limiting groove (31) and a limiting column (32); the limiting groove (31) is a long groove with limiting positions on both sides; and the limiting column (32) is arranged at the center of the arc-shaped structure of the third track (13).

7. A wire forming tool according to claim 1, characterized in that: The cross section of the second track (12) is trapezoidal.

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