Complete set of clamping jaws for welding steel needles and wires
By designing a complete set of jaws for welding steel needles and wires, the problem that existing fixtures cannot restrain the wire core is solved, and the alignment welding between the wire core and the steel needle is achieved, the welding quality and stability are improved, and the service life is extended.
Patent Information
- Application Number
- CN202422002475.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-16
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-08-16
AI Technical Summary
Existing fixtures cannot effectively constrain the wire core, resulting in incorrect alignment of the steel needle and wire during welding, affecting the welding quality.
A complete set of jaws for welding steel needles and wires is designed, including steel needle jaws and wire jaws. The jaws are divided into fins and mounting parts. The fins are used to clamp the wire core and wires. The fins are designed as concentric semicircular grooves to maintain a coaxial state, and are insulated through ceramic sheets or ceramic blocks to ensure that the wire core and steel are facing positively.
It effectively avoids misalignment between the wire core and the steel needle, ensures welding quality, improves welding stability and service life, prevents the wire core fins from being hot melted by arcs, and ensures clamping effect.
Smart Images
Figure CN223129791U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of ignition needles, and particularly relates to a set of clamping jaws for welding a steel needle and a wire. Background Art
[0002] Ignition needles are mainly used in various gas appliances to play the role of electronic ignition. An ignition needle is generally formed by welding a steel needle and a wire.
[0003] During the mass production of ignition needles, fixtures are used to clamp the steel needle and the wire respectively, and then the two are welded. When welding, the insulating sheath layer of the wire is pre-stripped, and the wire core is welded to the steel needle. However, the existing fixtures generally only clamp the wire with the insulating sheath layer, leaving the wire core without the insulating sheath layer exposed and allowing it to stretch freely. However, due to the softness of the insulating sheath layer and the small cross-sectional area of the wire core, and the wire core itself being soft and thin, the wire core will deflect, resulting in misalignment between the wire core in the clamped state of the wire and the steel needle, which will affect the welding quality of the wire core of the wire and the steel needle. Summary of the Utility Model
[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a set of clamping jaws for welding a steel needle and a wire, which is used to solve the technical problem that the existing fixtures cannot restrain the wire core of the wire, resulting in misalignment between the steel needle and the wire core during the welding process and easily affecting the welding quality of the two.
[0005] The technical solution of the utility model to solve the above technical problem is as follows: A set of clamping jaws for welding a steel needle and a wire, comprising:
[0006] A steel needle clamping jaw, which is divided into a left steel needle clamping jaw and a right steel needle clamping jaw, and the left steel needle clamping jaw and the right steel needle clamping jaw are arranged oppositely;
[0007] A wire clamping jaw, which is arranged parallel and aligned with the steel needle clamping jaw. The wire clamping jaw is divided into a left wire clamping jaw and a right wire clamping jaw, and the left wire clamping jaw and the right wire clamping jaw are also arranged oppositely;
[0008] Both the steel needle clamping jaw and the wire clamping jaw are divided into a fin part and a mounting part, and the fin parts protrude from the mounting parts;
[0009] The fin part of the wire clamping jaw further includes a wire core fin and a wire fin arranged in sequence from front to back. The wire core fin is used to clamp the wire core, and the wire fin is used to clamp the wire.
[0010] In the present utility model, the steel needle jaws are used to hold the steel needle, and the wire jaws are used to hold the wire. Moreover, the fin portion of the wire jaws includes a core fin and a wire fin, so that the wire and the core after stripping the insulating sheath layer can be held simultaneously, constraining the core, thus making the core align with the steel needle as much as possible to avoid false soldering during welding and ensuring the welding quality.
[0011] Furthermore: a small semi-circular groove is formed on the side surface of the core fin, a large semi-circular groove is formed on the side surface of the wire fin, and the small semi-circular groove and the large semi-circular groove are concentric;
[0012] The small semi-circular groove is adapted to the core of the wire, and the large semi-circular groove is adapted to the wire.
[0013] Beneficial effects of this step: The concentric large semi-circular groove and small semi-circular groove can make the wire and the core at the front end of the wire in a coaxial state, so that the core and the subsequent wire will not be in a twisted state, avoiding the generation of torsional stress, and thus ensuring that the core has no displacement in the clamped state.
[0014] Furthermore: the core fins of the left wire jaw and the right wire jaw are aligned;
[0015] The wire fins of the left wire jaw and the right wire jaw are staggered.
[0016] Beneficial effects of this step: The aligned core fins can ensure that the forces on both sides of the core are balanced and there will be no deflection.
[0017] Furthermore: the thickness of the core fin is greater than the thickness of the wire fin.
[0018] Beneficial effects of this step: The core needs to be welded to the steel needle. Generally, argon arc welding is used. The instantaneous current of argon arc welding is large and the temperature is high, and the welding position is close to the core fin. Compared with the wire fin, the thicker core fin can withstand better temperature and will not be easily melted by heat, improving the service life.
[0019] Furthermore: a ceramic sheet or a ceramic block is inlaid on the surface of the core fin.
[0020] Beneficial effects of this step: In order to further prevent the core fin from being melted by the arc of welding, insulation treatment is carried out with a ceramic sheet or a ceramic block, and the arc generated by welding will not hit the ceramic sheet or the ceramic block.
[0021] Furthermore: a positioning groove is formed on the bottom surface of the mounting portion.
[0022] Beneficial effects of this step: The positioning groove can assist in positioning the positions of the steel needle jaws and the wire jaws, ensuring the alignment of the left steel needle jaw and the right steel needle jaw, and the left wire jaw and the right wire jaw, so as to ensure the clamping effect.
[0023] The beneficial effects of the present utility model are as follows:
[0024] 1. The wire clamping jaws can clamp the wire and the wire core exposed at the front end of the wire simultaneously, no longer leaving the wire core in a free state, enabling the wire core to be aligned with the steel needle, avoiding misalignment between the two, preventing false soldering during welding, and ensuring the welding quality;
[0025] 2. The fin part of the steel needle clamping jaw protrudes from the installation part to make way for the flattened section of the steel needle, which can improve the clamping stability. The fin part of the wire clamping jaw protrudes from the installation part to make the fin part of the wire clamping jaw close to the fin part of the steel needle clamping jaw, shortening the distance between the two to ensure the welding effect. Description of the Drawings
[0026] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0027] Figure 1 Schematic application diagram of a set of clamping jaws for welding a steel needle and a wire provided by the present utility model;
[0028] Figure 2 Stereogram of the right wire clamping jaw in a set of clamping jaws for welding a steel needle and a wire provided by the present utility model;
[0029] Figure 3 Stereogram of the left wire clamping jaw in a set of clamping jaws for welding a steel needle and a wire provided by the present utility model;
[0030] Figure 4 Schematic structural diagram of the right wire clamping jaw in a set of clamping jaws for welding a steel needle and a wire provided by the present utility model;
[0031] Figure 5 Schematic structural diagram of the left wire clamping jaw in a set of clamping jaws for welding a steel needle and a wire provided by the present utility model.
[0032] Reference Signs:
[0033] 1 - Steel needle clamping jaw; 2 - Wire clamping jaw; 3 - Steel needle; 4 - Wire; 5 - Positioning groove;
[0034] 21a - Installation part of the right wire clamping jaw; 21b - Installation part of the left wire clamping jaw; 22a - Fin part of the right wire clamping jaw; 22b - Fin part of the left wire clamping jaw; 31 - Flattened section; 41 - Wire core;
[0035] 221 - wire core fin; 222 - wire fin. Specific embodiments
[0036] The embodiments of the technical solution of the present utility model will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solution of the present utility model more clearly, so they are only examples and cannot be used to limit the protection scope of the present utility model.
[0037] It should be noted that unless otherwise specified, the technical terms or scientific terms used in this application should have the ordinary meaning understood by those skilled in the art to which the present utility model belongs.
[0038] In the description of this application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present utility model.
[0039] In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. In the description of the present utility model, "a plurality of" means two or more unless otherwise specifically defined.
[0040] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0041] In this application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature 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, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.
[0042] Embodiment
[0043] As Figures 1 to 5 shown, a set of clamping jaws for welding a steel needle and a wire provided by the present utility model includes:
[0044] A steel needle clamping jaw 1, which is divided into a left steel needle clamping jaw and a right steel needle clamping jaw, and the left steel needle clamping jaw and the right steel needle clamping jaw are arranged oppositely;
[0045] A wire clamping jaw 2, which is arranged parallel and aligned with the steel needle clamping jaw 1, and the wire clamping jaw 2 is divided into a left wire clamping jaw and a right wire clamping jaw, and the left wire clamping jaw and the right wire clamping jaw are also arranged oppositely;
[0046] Both the steel needle clamping jaw 1 and the wire clamping jaw 2 are divided into a fin portion and a mounting portion, and the fin portions protrude from the mounting portions. Specifically, as shown in Attachment Figure 2 the fin portion 22a of the right wire clamping jaw in the wire clamping jaw 2 protrudes from the mounting portion 21a of the right wire clamping jaw. The reason for such a design is that the tail of the steel needle 3 is provided with a flattened section 31, and a ceramic insulating sleeve is also provided outside the ignition needle. The steel needle 3 extends into the ceramic insulating sleeve, and the flattened section 31 is used for positioning after being inserted into the ceramic insulating sleeve (sealing glue or grooving and other positioning methods have relatively weak relevance to this application, so they will not be elaborated in detail). The existing steel needle fixture clamps on the flattened section 31, resulting in unstable clamping. Therefore, the steel needle clamping jaw 1 of this application makes the fin portion protrude from the mounting portion to make room for the flattened section 31; and in order to maintain the distance between the wire clamping jaw 2 and the steel needle clamping jaw 1, the fin portion also protrudes from the mounting portion. The reason for ensuring the constant distance is to keep the exposed length of the wire core 41 unchanged. If the exposed length of the wire core 41 becomes longer, the wire core 41 will deflect, affecting the alignment with the steel needle 3.
[0047] The fin portion of the wire clamping jaw 2 further includes a wire core fin 221 and a wire fin 222 arranged in sequence from front to back. The wire core fin 221 is used for clamping the wire core 41 (exposed after stripping the insulating sheath layer), and the wire fin 222 is used for clamping the wire 4.
[0048] In the present utility model, the steel needle jaw 1 is used to clamp the steel needle 3, and the wire jaw 2 is used to clamp the wire 4. Moreover, the fin portion of the wire jaw 2 includes a core fin 221 and a wire fin 222, so that the wire 4 and the core 41 after the insulation sheath layer is peeled off can be clamped simultaneously, enabling the core 41 to be constrained, thereby making the core 41 align with the steel needle 3 as much as possible to avoid false soldering during welding and ensure the welding quality.
[0049] On the basis of the above technical solution, a small semi-circular groove is formed on the side surface of the core fin 221, and a large semi-circular groove is formed on the side surface of the wire fin 222, and the small semi-circular groove and the large semi-circular groove are concentric.
[0050] The small semi-circular groove is adapted to the core 41 of the wire 4, and the large semi-circular groove is adapted to the wire 4.
[0051] The concentric large semi-circular groove and small semi-circular groove can make the wire 4 and the core 41 at the front end of the wire 4 in a coaxial state, so that the core 41 and the subsequent wire 4 will not be in a twisted state, which can avoid generating torsional stress, thereby ensuring that the core 41 has no abnormal movement in the clamped state.
[0052] As Figures 2 to 5 shown, the positions of the core fins 221 of the left wire jaw and the right wire jaw are aligned;
[0053] The positions of the wire fins 222 of the left wire jaw and the right wire jaw are staggered.
[0054] The mounting portion 21a of the right wire jaw is aligned with the mounting portion 21b of the left wire jaw, and the fin portion 22a of the right wire jaw and the fin portion 22b of the left wire jaw are aligned. The aligned core fins 221 can ensure that the forces on both sides of the core 41 are balanced and will not deflect.
[0055] On the basis of the above technical solution, the thickness of the core fin 221 is greater than the thickness of the wire fin 222.
[0056] The core 41 needs to be welded to the steel needle 3, generally using argon arc welding. The instantaneous current of argon arc welding is large, the temperature is high, and the welding position is close to the core fin 221. Compared with the wire fin 222, the thicker core fin 221 can withstand better temperature and will not be easily melted, which can improve the service life.
[0057] On the basis of the above technical solution, a ceramic sheet or ceramic block is inlaid on the surface of the core fin 221. Specifically, if it is a ceramic sheet, it is used as a patch to cover the surface of the core fin 221. If it is a ceramic block, the ceramic block is welded / adhered to the core fin 221 (similar to the installation method of the alloy tool head and the tool handle of a metal cutting tool), and a small semi-circular groove needs to be formed on the side surface of the ceramic block for clamping the core 41.
[0058] In order to further prevent the wire core fin 221 from being melted by the welding arc, ceramic sheets or ceramic blocks are used for insulation treatment, and the welding arc generated will not hit the ceramic sheets or ceramic blocks.
[0059] On the basis of the above technical solution, a positioning groove 5 is opened on the bottom surface of the installation part.
[0060] The positioning groove 5 can assist in positioning the positions of the steel needle jaws 1 and the wire jaws 2, ensuring the alignment of the left and right steel needle jaws and the left and right wire jaws, so as to ensure the clamping effect.
[0061] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. A set of clamping jaws for welding a steel needle and a wire, characterized in that, Including: A steel needle jaw, which is divided into a left steel needle jaw and a right steel needle jaw, and the left steel needle jaw and the right steel needle jaw are arranged oppositely; A wire jaw, which is arranged parallel and aligned with the steel needle jaw, and the wire jaw is divided into a left wire jaw and a right wire jaw, and the left wire jaw and the right wire jaw are also arranged oppositely; Both the steel needle jaw and the wire jaw are divided into a fin part and a mounting part, and the fin parts protrude from the mounting parts; The fin part of the wire jaw further includes a core fin and a wire fin arranged in sequence from front to back. The core fin is used for clamping the core, and the wire fin is used for clamping the wire.
2. The complete set of jaws for welding steel needles and wires according to claim 1, characterized in that, A small semi-circular groove is formed on the side surface of the core fin, and a large semi-circular groove is formed on the side surface of the wire fin, and the small semi-circular groove and the large semi-circular groove are concentric; The small semi-circular groove is adapted to the core of the wire, and the large semi-circular groove is adapted to the wire.
3. The complete set of jaws for welding steel needles and wires according to claim 2, characterized in that, The positions of the core fins of the left wire jaw and the right wire jaw are aligned; The positions of the wire fins of the left wire jaw and the right wire jaw are staggered.
4. The complete set of clamping jaws for welding steel needles and wires according to claim 3, characterized in that, The thickness of the core fin is greater than the thickness of the wire fin.
5. The complete set of clamping jaws for welding steel needles and wires according to claim 1, characterized in that, Ceramic pieces or ceramic blocks are inlaid on the surface of the core fin.
6. The complete set of clamping jaws for welding steel needles and wires according to claim 1, characterized in that, A positioning groove is formed on the bottom surface of the mounting part.