Auxiliary device for pre-tinning of stranded conductor

Abstract

The utility model relates to an auxiliary device for pre-tinning stranded conductors. The auxiliary device comprises a conveying pipeline and a stripping part, the conveying pipeline is vertically arranged, and the interior of the conveying pipeline is used for penetrating and moving the to-be-tinned end of the stranded wire from top to bottom. The stripping part is located below the conveying pipeline, and the stripping part can move in the horizontal direction so as to make contact with or be away from the to-be-tinned end, penetrating out of the lower end of the conveying pipeline, of the stranded wire; and the stripping part can also rotate around the axis of the conveying pipeline, and when the stripping part is in contact with the to-be-tinned end of the stranded wire, the patent leather of the to-be-tinned end of the stranded wire is stripped by rotating the stripping part. The device has the beneficial effects that manpower and material resources are saved, and an efficient and environment-friendly enameled leather removing mode for the end part of the stranded conductor is provided.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic component production technology, in particular to a stranded wire self-welding auxiliary device. Background Art

[0002] Self-soldering stranded wire usually refers to twisting multiple thin wires into one strand during wire processing, and pre-tinning the wire during or after the twisting process, so that the wire can be more convenient for subsequent welding. This pre-tinning process is also called "self-soldering" because it simplifies the welding steps to a certain extent, allowing the wire to form a good solder joint more quickly when it comes into contact with the solder.

[0003] At present, in the pre-tinning of the stranded wire, the paint on the outer periphery of the stranded wire end is usually removed first, and then the wire is dipped in flux and directly soldered. Among them, the use of organic paint strippers in the process of removing the paint will have adverse effects on human health and the environment. At the same time, strong chemical paint strippers may erode or corrode the metal substrate of the wire, and the residual chemicals may also affect the electrical properties of the wire, such as increasing resistance or reducing insulation. In addition, the paint stripping process is complicated, which increases the cost of manpower and material resources.

[0004] As customers place higher demands on the reliability, lifespan, appearance and other conditions of electronic components, it is urgent to solve the above-mentioned technical problems. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides an auxiliary device for pre-tinning of stranded wires, which solves the technical problems that the pre-tinning operation of the prior art stranded wires is complicated and affects the electrical properties of the wires.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0009] In the first aspect, an embodiment of the utility model provides an auxiliary device for pre-tinning of stranded conductors, comprising a conveying pipe and a stripping portion; the conveying pipe is vertically arranged, and its interior is used to pass through and move the ends of the stranded conductors to be tinned from top to bottom; the stripping portion is located below the conveying pipe, and the stripping portion can move in a horizontal direction to contact or move away from the ends of the stranded conductors to be tinned that pass through the lower end of the conveying pipe; the stripping portion can also rotate around the axis of the conveying pipe, and when the stripping portion contacts the ends of the stranded conductors to be tinned, the paint on the ends of the stranded conductors to be tinned is stripped off by rotating the stripping portion.

[0010] Optionally, the auxiliary device for pre-tinning of stranded conductors further includes a rotating part; the rotating part is connected above the stripping part; the lower end of the conveying pipe passes through the middle part of the rotating part, and when the rotating part rotates around the conveying pipe, the stripping part is driven to rotate around the axis of the conveying pipe.

[0011] Optionally, in the auxiliary device for pre-tinning of the stranded conductor, the inner diameter of the conveying pipe is equal to the diameter of the stranded conductor; the stripping part includes a blade and a knife holder; the knife holder is connected below the rotating part, and the blade is arranged on the knife holder; when the rotating part rotates around the axis of the conveying pipe, the blade can cut and strip the paint of the end of the stranded conductor to be tinned along the circumference of the stranded conductor.

[0012] Optionally, in the auxiliary device for pre-tinning of the stranded conductor, the stripping portion further includes a first support member arranged opposite to the blade; the first support member is connected to the bottom of the rotating portion in a vertical direction; and the side of the first support member facing the blade is a first curved surface that can fit and match the side wall of the end of the stranded conductor to be tinned.

[0013] Optionally, in the auxiliary device for pre-tinning of the stranded wire, the blade is slidably arranged on the tool holder, and the blade can be moved on the tool holder to the end of the corresponding stranded wire to be tinned; the stripping portion also includes a second support member; the second support member is on the side away from the blade of the blade and connected to the blade, and the second support member and the blade move synchronously on the tool holder; the second support member is used to be provided with a second curved surface that can fit closely with the side wall of the stranded wire on the side facing the side wall of the end of the stranded wire to be tinned; the second support member is moved on the tool holder to be opposite to the first support member, and the rotating part drives the second support member and the first support member to rotate synchronously around the axis of the conveying pipe to twist the exposed wire bundle stripped by the blade at the end of the stranded wire to be tinned.

[0014] Optionally, the auxiliary device for pre-tinning of stranded conductors further includes a vertically arranged support frame, the lower end of the support frame is used to support the work surface; the rotating part is an electrical slip ring, the axis of the electrical slip ring coincides with the axis of the transmission pipeline; the upper end of the electrical slip ring is fixed to the support frame, and the lower end is electrically connected to rotate; the transmission pipeline passes through the hollow area of ​​the electrical slip ring and is connected to the upper end of the electrical slip ring; the stripping part is arranged on the lower end surface of the electrical slip ring.

[0015] Optionally, the auxiliary device for pre-tinning the stranded conductors, the transmission pipe is detachably connected to the upper end of the power-connecting slip ring.

[0016] Optionally, the auxiliary device for pre-tinning of the stranded conductors further includes a protective cover; the protective cover is arranged below the stripping portion and connected to the support frame; the protective cover is provided with a through hole at a position corresponding to the conveying pipe.

[0017] Optionally, in the auxiliary device for pre-tinning of stranded conductors, the blade is in the shape of a trapezoid with a larger top and a smaller bottom, and the blade edge of the blade forms a specified angle with the vertical direction.

[0018] Optionally, in the auxiliary device for pre-tinning the stranded conductors, the inner wall of the conveying pipe is provided with an anti-slip layer.

[0019] (III) Beneficial effects

[0020] The beneficial effects of the utility model are as follows: the utility model is an auxiliary device for pre-tinning of a stranded conductor, which uses a conveying pipe to convey the end of the stranded conductor to be tinned in a vertical direction, so as to position the conductor. Then, the stripping part rotates around the axis of the conveying pipe below the conveying pipe to complete the stripping of the paint on the end of the stranded conductor to be tinned. Compared with the prior art, the paint stripping speed is fast, avoiding the use of chemical paint strippers, being environmentally friendly and beneficial to human health; at the same time, the original electrical properties of the conductor are guaranteed to the greatest extent; manpower and material resources are saved, and an efficient and environmentally friendly method of stripping the paint on the end of a stranded conductor is provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of Embodiment 1 of an auxiliary device for pre-tinning of stranded conductors of the utility model;

[0022] Figure 2 for Figure 1 A three-dimensional schematic diagram of a conveying pipeline, a stripping part and a rotating part;

[0023] Figure 3 for Figure 2 A three-dimensional schematic diagram of the rotating part in the state of being separated up and down;

[0024] Figure 4 for Figure 2 Schematic diagram from above;

[0025] Figure 5 for Figure 1 Schematic diagram of the explosion of the peeling part.

[0026] [Description of Reference Numerals]

[0027] 1: conveying pipe; 2: stripping part; 21: blade; 22: blade holder; 221: base; 222: slider; 223: slide plate; 23: first support member; 231: first arc surface; 24: second support member; 241: second arc surface; 3: stranded conductor; 4: rotating part; 41: driving motor; 42: driving wheel; 5: supporting frame; 6: protective cover. DETAILED DESCRIPTION

[0028] The utility model embodiment proposes an auxiliary device for pre-tinning of stranded conductors, which aims to solve the technical problems that the pre-tinning operation of existing stranded wires is complicated and affects the electrical properties of the conductors. A conveying pipe is used to convey the ends of the stranded conductors to be tinned in a vertical direction, so as to position the conductors. Then, the stripping part rotates around the axis of the conveying pipe below the conveying pipe to complete the stripping of the paint on the ends of the stranded conductors to be tinned. Compared with the prior art, the paint stripping speed is fast, which avoids the use of chemical paint strippers, is environmentally friendly and beneficial to human health. At the same time, the original electrical properties of the conductors are guaranteed to the greatest extent. It saves manpower and material resources, and provides an efficient and environmentally friendly way to remove the paint from the ends of stranded conductors.

[0029] In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0030] Embodiment 1:

[0031] Reference Figure 1 and Figure 2 , this embodiment provides an auxiliary device for pre-tinning of stranded conductors, which is used to assist in stripping the paint on the ends of the stranded conductors before pre-tinning the stranded conductors, so that the exposed conductors are convenient for subsequent dipping in flux for soldering. Specifically, it includes a conveying pipe 1 and a stripping portion 2. The conveying pipe 1 is vertically arranged, and its interior is used to penetrate and move the ends of the stranded conductors 3 to be tinned from top to bottom. The stripping portion 2 is located below the conveying pipe 1, and the stripping portion 2 can move in a horizontal direction to contact or move away from the ends of the stranded conductors 3 to be tinned that pass through the lower end of the conveying pipe 1. The stripping portion 2 can also rotate around the axis of the conveying pipe 1. When the stripping portion 2 contacts the ends of the stranded conductors to be tinned, the paint on the ends of the stranded conductors 3 to be tinned is stripped by rotating the stripping portion 2.

[0032] Among them, the transmission pipe 1 is used to transmit the end of the stranded wire to be tinned in the vertical direction, which plays a role in positioning the wire. The stripping part 2 can move in the horizontal direction so as to be able to contact the stranded wires of different diameters, and then strip the paint of the end of the stranded wire to be tinned. The stripping part 2 rotates around the axis of the transmission pipe 1 below the transmission pipe 1 to complete the stripping of the paint of the end of the stranded wire to be tinned. The auxiliary device has a fast paint stripping speed, avoids the use of chemical paint strippers, is environmentally friendly and beneficial to human health; at the same time, it guarantees the original electrical properties of the wire to the greatest extent; saves manpower and material resources, and provides an efficient and environmentally friendly way to remove the paint from the ends of stranded wires.

[0033] Reference Figure 1 and Figure 2 The present embodiment provides an auxiliary device for pre-tinning of a stranded conductor, further comprising a rotating portion 4, the rotating portion 4 being connected above the stripping portion 2, the lower end of the conveying pipe 1 passing through the middle of the rotating portion 4, when the rotating portion 4 rotates around the conveying pipe 1, the stripping portion 2 is driven to rotate around the axis of the conveying pipe 1, and the circumferential paint coating of the stranded conductor is cut and stripped.

[0034] Reference Figure 2 , Figure 3 and Figure 4 This embodiment provides an auxiliary device for pre-tinning of stranded conductors. The inner diameter of the transmission pipe 1 is equal to the diameter of the stranded conductors, so that the stranded conductors can contact and move in the transmission pipe 1 under the action of external force. The inner wall of the transmission pipe 1 is provided with an anti-slip layer, such as a rubber layer, which can prevent the stranded conductors from slipping out of the transmission pipe 1 when the stranded conductors do not need to move up and down. The stripping part 2 includes a blade 21 and a knife holder 22. The knife holder 22 is connected to the bottom of the rotating part 4. The blade 21 is arranged on the knife holder 22. Specifically, the blade 21 can be tangent to the circumference of the stranded conductors extending from the lower end of the transmission pipe 1. At the same time, there is a certain force between the blade 21 and the conductor, that is, there is a slight pressing force between the blade 21 and the conductor. In this way, when the rotating part 4 rotates around the axis of the transmission pipe 1, the blade 21 can cut and strip the paint of the end of the stranded conductor to be tinned along the circumference of the stranded conductor.

[0035] Reference Figure 2 , Figure 3 and Figure 4 This embodiment provides an auxiliary device for pre-tinning of a stranded conductor, and the stripping portion 2 further includes a first support member 23 disposed opposite to the blade 21. The first support member 23 is connected to the lower portion of the rotating portion 4 in the vertical direction, and the side of the first support member 23 facing the blade 21 is a first arc surface 231 that can fit with the side wall of the end of the stranded conductor to be tinned. The function of the first arc surface 231 is to provide support on the opposite side of the blade 21 when the blade 21 strips the paint coating of the stranded conductor, so as to prevent the deformation of the stranded conductor from affecting the stripping effect.

[0036] Reference Figure 3 , Figure 4 and Figure 5 The present embodiment provides an auxiliary device for pre-tinning of a stranded conductor. The blade 21 is slidably arranged on the blade holder 22. The blade 21 can be moved on the blade holder 22 to the end of the stranded conductor to be tinned. The blade 21 is movable relative to the blade holder 22, which is conducive to adjusting the distance of the blade 21 relative to the stranded conductor, and can be applied to conductors of different thicknesses. The stripping portion 2 also includes a second support member 24. The second support member 24 is on the side away from the blade of the blade 21 and connected to the blade 21. The second support member 24 and the blade 21 move synchronously on the blade holder 22, which is convenient for adjusting the position of the second support member 24. The second support member 24 is used to be provided with a second arc surface 241 that can fit the side wall of the stranded conductor to be tinned on one side of the side wall of the stranded conductor to be tinned. The second support member 24 is moved on the blade holder 22 to face the first support member 23. The rotating portion 4 drives the second support member 24 and the first support member 23 to rotate synchronously around the axis of the conveying pipe 1 to twist the exposed wire bundle stripped by the blade 21 at the end of the stranded conductor to be tinned. That is, the auxiliary device not only realizes the stripping of the wire paint, but also realizes the wire harness pulling effect.

[0037] Reference Figure 5 The blade holder 22 includes a base 221, a slider 222 and a slide plate 223, wherein the base 221 is fixed below the rotating part 4, the slider 222 can slide in the base 221, the slider 222 is connected to the slide plate 223, and the blade 21 is fixed on the slide plate 223, therefore, the slider 222 slides in the base 221 to drive the slide plate 223 to move, and then drive the blade 21 to move. The slider 222 can also be positioned relative to the base 221 to ensure that the blade 21 can be fixed when it reaches the use position. The specific positioning of the slider 222 relative to the base 221 can refer to the existing technology, which will not be repeated here.

[0038] Reference Figure 1 , Figure 2 and Figure 3The present embodiment provides an auxiliary device for pre-tinning of stranded conductors, and further includes a vertically arranged support frame 5, the lower end of which is used to support the work surface and play a supporting role for the entire device. The rotating part 4 is an electric slip ring, and the axis of the electric slip ring coincides with the axis of the transmission pipe 1. The upper end of the electric slip ring is fixed to the support frame 5, and the lower end is electrically connected and rotated. The upper end and the lower end of the electric slip ring are rotatably connected, wherein the drive motor 41 is fixed to the upper end of the electric slip ring, and the drive motor 41 rotates the lower end of the electric slip ring through the drive wheel 42. For details, refer to the prior art of the electric slip ring. The transmission pipe 1 passes through the hollow area of ​​the electric slip ring and is connected to the upper end of the electric slip ring, that is, the transmission pipe 1 and the upper end of the electric slip ring are both kept in a stationary state. The transmission pipe 1 is detachably connected to the upper end of the electric slip ring. For example, a threaded structure can be provided on the outer side of the transmission pipe 1 to be screwed to the upper end of the electric slip ring. In this way, the transmission pipe 1 with the same outer diameter but different inner diameter can be replaced to adapt to the passage of wires of different diameters. The stripping portion 2 is arranged on the lower end surface of the power-connecting slip ring, so that the stripping portion 2 can rotate along with the rotation of the lower end of the power-connecting slip ring.

[0039] Reference Figure 1 , Figure 2 and Figure 3 This embodiment provides an auxiliary device for pre-tinning of a stranded conductor, and further includes a protective cover 6, which is arranged below the stripping portion 2 and connected to the support frame 5. The protective cover 6 is provided with a through hole at a position corresponding to the conveying pipe 1. After the stranded conductor completes the stripping and matching steps, the stranded conductor continues to move downward in the conveying pipe 1, so that its lower end passes through the through hole of the protective cover 6 and enters the protective cover 6 to perform a series of subsequent pre-tinning operations. The protective cover 6 completes the pre-tinning process in its internal space, and has a certain protective effect on the operator and the surrounding environment.

[0040] Reference Figure 2 and Figure 3 This embodiment provides an auxiliary device for pre-tinning of a stranded conductor. The blade 21 is a trapezoidal shape with a larger upper portion and a smaller lower portion. The blade 21 has a specified angle with the vertical direction, that is, the blade rotates with the blade 21. The upper blade first contacts the paint coating of the stranded conductor, and then the lower portion of the blade 21 contacts the paint coating in turn, which is conducive to the smooth stripping process.

[0041] The auxiliary device for pre-tinning of stranded conductors provided in this embodiment has the following specific usage process: first, the end of the stranded conductor to be tinned is led from the upper part of the conveying pipe 1 to the lower part and then passed out. The conductor at the upper end of the conveying pipe 1 can be manually fixed or clamped to prevent rotation or slipping; secondly, the blade 21 is moved to the stranded conductor, the power-connecting slip ring is started, the blade 21 is driven to peel off the paint, and the power-connecting slip ring is stopped from rotating; thirdly, the second support member 24 is moved to a position opposite to the first support member 23, the power-connecting slip ring is started again, and the stripped bare wire bundles are brought together; finally, the brought together bare wire bundles are continued to move downward into the protective cover 6 for pre-tinning operation.

[0042] In the description of the present utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0043] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it 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 an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In the present utility model, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0045] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0046] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An auxiliary device for pre-tinning of stranded conductors, characterized in that: It comprises a conveying pipe (1) and a stripping part (2); The conveying pipe (1) is arranged vertically, and its interior is used to pass through and move the ends of the stranded wires to be tinned from top to bottom; The stripping portion (2) is located below the conveying pipe (1), and the stripping portion (2) is capable of moving in a horizontal direction to contact or move away from the end to be tinned of the stranded conductor passing through the lower end of the conveying pipe (1); The stripping part (2) can also rotate around the axis of the conveying pipe (1). When the stripping part (2) contacts the end of the stranded wire to be tinned, the paint coating of the end of the stranded wire to be tinned is stripped by rotating the stripping part (2).

2. The auxiliary device for pre-tinning of stranded conductors according to claim 1, characterized in that: It also includes a rotating part (4); The rotating part (4) is connected above the peeling part (2); The lower end of the conveying pipe (1) passes through the middle of the rotating part (4), and when the rotating part (4) rotates around the conveying pipe (1), it drives the stripping part (2) to rotate around the axis of the conveying pipe (1).

3. The auxiliary device for pre-tinning of stranded conductors according to claim 2, characterized in that: The inner diameter of the transmission pipe (1) is equal to the diameter of the stranded conductor; The stripping portion (2) comprises a blade (21) and a blade holder (22); The knife holder (22) is connected below the rotating part (4), and the blade (21) is arranged on the knife holder (22); When the rotating part (4) rotates around the axis of the conveying pipe (1), the blade (21) can cut along the circumference of the stranded wire and peel off the paint coating of the end of the stranded wire to be tinned.

4. The auxiliary device for pre-tinning of stranded conductors according to claim 3, characterized in that: The stripping portion (2) further comprises a first support member (23) arranged opposite to the blade (21); The first support member (23) is connected below the rotating part (4) in a vertical direction; The side of the first support member (23) facing the blade (21) is a first arc-shaped surface (231) that can fit closely with the side wall of the end of the stranded wire to be tinned.

5. The auxiliary device for pre-tinning of stranded conductors according to claim 4, characterized in that: The blade (21) is slidably arranged on the blade holder (22), and the blade (21) can be moved on the blade holder (22) to the end of the corresponding stranded wire to be tinned; The stripping portion (2) further comprises a second supporting member (24); The second support member (24) is located at a side away from the blade of the blade (21) and is connected to the blade (21); the second support member (24) and the blade (21) move synchronously on the blade holder (22); The second support member (24) is provided with a second arc-shaped surface (241) which is adapted to fit the side wall of the stranded wire and faces the side wall of the stranded wire to be tinned. The second support member (24) is moved on the blade holder (22) to be opposite to the first support member (23), and the rotating part (4) drives the second support member (24) and the first support member (23) to rotate synchronously around the axis of the conveying pipe (1) to twist together the exposed wire bundles stripped off by the blade (21) at the ends of the stranded wires to be tinned.

6. The auxiliary device for pre-tinning of stranded conductors according to claim 2, characterized in that: It also comprises a vertically arranged support frame (5), wherein the lower end of the support frame (5) is used for supporting the work surface; The rotating part (4) is an electrical slip ring, and the axis of the electrical slip ring coincides with the axis of the transmission pipeline (1); The upper end of the electrical slip ring is fixed to the support frame (5), and the lower end is electrically connected and rotated; The transmission pipeline (1) passes through the hollow area of ​​the power connection slip ring and is connected to the upper end of the power connection slip ring; The stripping portion (2) is arranged on the lower end surface of the electrical slip ring.

7. The auxiliary device for pre-tinning of stranded conductors according to claim 6, characterized in that: The transmission pipeline (1) is detachably connected to the upper end of the power-connecting slip ring.

8. The auxiliary device for pre-tinning of stranded conductors according to claim 6, characterized in that: Also includes a protective cover (6); The protective cover (6) is arranged below the stripping portion (2) and is connected to the support frame (5); The protective cover (6) is provided with a through hole at a position corresponding to the conveying pipe (1).

9. The auxiliary device for pre-tinning of stranded conductors according to claim 3, characterized in that: The blade (21) is in the shape of a trapezoid with a larger upper portion and a smaller lower portion, and the blade edge of the blade (21) forms a specified angle with the vertical direction.

10. The auxiliary device for pre-tinning of stranded conductors according to claim 1, characterized in that: The inner wall of the conveying pipe (1) is provided with an anti-slip layer.

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