Catalytic igniter nozzle guard welding fixture

Abstract

The utility model discloses catalytic igniter spout protection formula welding fixed frock, include: device ontology, welding assembly is set up in device ontology, including multi -shaft linkage and the welding gun of setting up in its drive end, is used for automatic welding operation, fixed component is set up in one side of welding assembly, including the support piece for the support location of work piece, through directly setting up detachable shield cover at the welding head of welding gun, realized the overall blockade to high -intensity arc light, effectively prevented the strong light unsheltered radiation to all around, fundamentally eliminated the direct threat of arc light to operator's vision, significantly improved the operation safety, through setting up the adapter of comprising shell, movable strip, elastic ring and compensation edge, can ensure that shield cover and different shape work piece surface can form close fit between all, maximumly reduced the leakage of strong light from the bottom gap, realized the nearly full -pack type flexible protection.

Description

Technical Field

[0001] This utility model relates to the field of mechanical manufacturing technology, specifically to a protective welding fixture for catalytic igniter nozzles. Background Technology

[0002] In the welding manufacturing process of precision components such as catalytic igniters, welding fixtures are key to ensuring the relative position and welding accuracy between parts. However, traditional welding fixtures have significant design flaws when dealing with an inherent factor in the welding process: the glaring light generated during welding will radiate into the surrounding space without any obstruction. This untreated light poses a serious threat to the operator's visual safety. Even a brief direct gaze can cause temporary eye burns and lead to prolonged discomfort and fatigue during operation. Utility Model Content

[0003] In order to solve the technical problems existing in the prior art, the present invention provides a protective welding fixture for the nozzle of a catalytic igniter.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a protective welding fixture for a catalytic igniter nozzle, comprising: a device body; A welding assembly, mounted on the device body, includes a multi-axis linkage and a welding gun mounted on its drive end, for automated welding operations. A fixing component, disposed on one side of the welding component, includes a support member for supporting and limiting the workpiece, and a pressing member disposed on one side of the support member and above the support member for pressing the workpiece to achieve fixing. A protective assembly is disposed on the surface of a welding gun, including a shielding component disposed on the surface of the main welding component of the welding chamber, and an adapter that works with the shielding component to achieve full-coverage protection.

[0005] Preferably, the shielding member includes: A connecting sleeve is fixed to the surface of the welding component of the welding gun, and its inner wall is threaded. A shielding cover is located at the welding head of the welding gun. Its upper end is a threaded interface that connects with the inner thread of the connecting sleeve. It is used to mainly shield the welding light generated during welding.

[0006] Preferably, the adapter includes: The housing is fixed to the inner wall of the shield and has an inverted L-shaped cross-section. The movable strips are located inside the housing and are arranged in a circular array around the housing as the axis; The number of limiting strips is the same as that of the movable strips. The upper end of the limiting strips is fixed to the inner wall of the housing, and the movable strips slide vertically on the surface of the limiting strips.

[0007] Preferably, the adapter further includes: The elastic ring is fixed inside the upper part of the housing. It is made of rubber and has a J-shaped cross-section. The elastic ring is set between the surfaces of multiple limiting strips. Its inner edge has a relief groove that matches the limiting strips and is used to abut against the movable strips outward.

[0008] Preferably, the adapter further includes: The compensation edge is located at the end of the movable strip. The compensation edge is made of silicone and has a compensation groove at its lower part, which is used to adapt to deformation when it is attached to the surface of the workpiece.

[0009] Compared with the prior art, this utility model provides a protective welding fixture for catalytic igniter nozzles, which has the following advantages: (1) By directly setting a detachable shield at the welding head of the welding gun, the high-intensity arc light is completely blocked, effectively preventing the strong light from radiating to all sides without obstruction, eliminating the threat of arc light to the operator's vision, and improving the safety of operation. (2) By setting up an adapter consisting of a shell, movable strip, elastic ring and compensation edge, it can be ensured that the shield can form a tight fit with the surface of workpieces of different shapes, reducing the leakage of strong light from the bottom gap and achieving full-coverage protection. Attached Figure Description

[0010] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure in the embodiment; Figure 2 This is a schematic diagram of the welding assembly and fixing assembly in the embodiment; Figure 3 This is a structurally disassembled schematic diagram of the welding gun and protective components in the embodiment; Figure 4 This is a schematic diagram of a half-section of the protective component in the embodiment; Figure 5 This is a structural breakdown diagram of the adapter in the embodiment; Figure 6 This is a bottom view of the structural disassembly of the adapter in the embodiment; Figure 7 This is a schematic diagram of a half-section of the elastic ring in the embodiment.

[0011] In the diagram: 100, device body; 110, multi-axis linkage; 111, welding gun; 120, pressing component; 130, support component; 200, protective component; 210, connecting sleeve; 211, shield; 220, movable strip; 221, housing; 222, limiting strip; 223, elastic ring; 224, compensation edge. Detailed Implementation

[0012] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0013] like Figure 1-7 As shown, this embodiment proposes a protective welding fixture for the nozzle of a catalytic igniter, including: a device body 100; The welding assembly, mounted on the device body 100, includes a multi-axis linkage 110 and a welding gun 111 mounted on its drive end, for automated welding operations. The fixing component is located on one side of the welding component and includes a support member 130 for supporting and limiting the workpiece, and a pressing member 120 located on one side of the support member 130 and above the support member 130 for pressing the workpiece to achieve fixation. The two cooperate with each other to fix the workpiece and cooperate with the welding component to form an automated welding operation. The protective component 200 is disposed on the surface of the welding gun 111, including a shielding component disposed on the surface of the main welding component in the welding chamber, and an adapter that works with the shielding component to achieve full-coverage protection. During welding operations, the operator first precisely places the catalytic igniter nozzle workpiece to be welded onto the support 130 of the fixed component; then, the lowering component 120 is activated, and the lowering component 120 moves from above to the workpiece, working together with the support 130 below to clamp and fix the workpiece in the preset position; subsequently, the welding gun 111 is driven by the multi-axis linkage 110 to perform precise movement and positioning, realizing automated welding of complex weld trajectories such as catalytic igniter nozzles.

[0014] The adapter includes: a housing 221, which is fixed to the inner wall of the shield 211 and has an inverted L-shaped cross-section; movable strips 220, which are set inside the housing 221 and arranged in a circular array around the housing 221; and limiting strips 222, which have the same number as the movable strips 220, with their upper ends fixed to the inner wall of the housing 221, and the movable strips 220 sliding vertically on the surface of the limiting strips 222. The adapter also includes: elastic ring 223, which is fixed inside the upper part of the housing 221. It is made of rubber and has a J-shaped cross section. The elastic ring 223 is disposed between the surfaces of multiple limiting strips 222. Its inner edge has a relief groove that is adapted to the limiting strips 222 for abutting against the movable strip 220 outward. The adapter also includes: a compensation edge 224, which is located at the end of the movable strip 220. The compensation edge 224 is made of silicone and has a compensation groove at its lower part for adaptive deformation when it is attached to the surface of the workpiece. When the welding torch approaches the workpiece, the compensation edge 224 at the bottom of the adapter will first contact the workpiece surface. When the movable strip 220 compresses the elastic ring 223 upward, the J-shaped structure of the elastic ring 223 generates a uniform, downward elastic restoring force, which can push several movable strips 220, forcing the compensation edge 224 at its tail to always press tightly against the workpiece surface. Because the workpiece surface may have slight unevenness or curvature, the compensation edge 224 will deform first. The compensation groove structure at its lower part can better adapt to this change. As the welding gun 111 continues to be in contact with the workpiece, the movable strip 220 will be subjected to the reaction force of the workpiece surface and will begin to slide vertically at different strokes under the precise guidance of the limiting strip 222, so as to be in contact with the curvature or slope of the welding part. Then the welding program is officially started. The rotation control structure of the support 130 and the pressure 120 begins to control the rotation of the workpiece. The welding gun 111, which is in the same position, begins to weld. At this time, the above-mentioned adapter that is pre-fitted with the welding part of the workpiece will continue to be in contact with the workpiece.

[0015] The shielding component includes: a connecting sleeve 210, which is fixed to the surface of the welding part of the welding gun 111 and has threads on its inner wall; and a shielding cover 211, which is located at the welding head of the welding gun 111 and has a threaded interface at its upper end that is threaded to the inner wall of the connecting sleeve 210, and is used to mainly shield the welding light generated during welding.

[0016] The shield 211 serves as the main barrier, enveloping most of the intense light and welding spatter within it, while the flexible sealing ring at the bottom prevents light leakage to the greatest extent, achieving closed protection. After the welding process is completed, the welding gun 111 stops working, the multi-axis linkage 110 drives the welding gun 111 to lift, and the protective component 200 leaves the workpiece surface. Under the elastic force of the elastic ring 223, the movable strip 220 is fully reset to the initial extended position, ready for the next operation.

[0017] In actual operation, when the welding gun 111 approaches the workpiece under the drive of the multi-axis linkage 110, the protective component 200 moves along with it. First, the compensation edge 224 at the tail of the movable strip 220 will contact the workpiece surface. As the welding gun 111 continues to move, each movable strip 220 will independently slide vertically with different strokes according to the contour difference of the workpiece surface under the constraint of the limiting strip 222, compressing the elastic ring 223 above. The uniform elastic force generated by the elastic ring 223 in turn pushes each movable strip 220 and its compensation edge 224, so that they fit tightly against different height positions of the workpiece. Finally, all the movable strips 220 and the compensation edge 224 together form a dynamic sealing ring that matches the shape of the workpiece, effectively enclosing the strong arc light and most of the spatter generated by the welding point in the local space surrounded by the shield 211 and the workpiece surface, thus achieving closed protection.

[0018] In the description of this utility model, the terms "first," "second," "another," and "yet another" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0020] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A protective welding fixture for catalytic igniter nozzles, characterized in that, include: Device body (100); A welding assembly, mounted on the device body (100), includes a multi-axis linkage (110) and a welding gun (111) mounted on its drive end, for automated welding operations; The fixing component is disposed on one side of the welding component, including a support member (130) for supporting and limiting the workpiece, and a pressing member (120) disposed on one side of the support member (130) and above the support member (130) for pressing the workpiece to achieve fixing. The protective component (200) is disposed on the surface of the welding gun (111) and includes a shielding component disposed on the surface of the main welding component of the welding cavity, and an adapter that works with the shielding component to achieve full-coverage protection.

2. The protective welding fixture for the catalytic igniter nozzle according to claim 1, characterized in that: The shielding components include: A connecting sleeve (210) is fixed to the surface of the welding component of the welding gun (111), and its inner wall is threaded. The shield (211) is located at the welding head of the welding gun (111). Its upper end is a threaded interface that is threaded to the inner wall of the connecting sleeve (210) to mainly shield the welding light generated during welding.

3. The protective welding fixture for the catalytic igniter nozzle according to claim 2, characterized in that: Accessories include: The housing (221) is fixed to the inner wall of the shield (211) and its cross-sectional shape is an inverted L-shaped design; The movable strip (220) is disposed inside the housing (221), and multiple strips are arranged in a ring array with the housing (221) as the axis; Limiting strips (222), the number of which is the same as the number of movable strips (220), with their upper ends fixed to the inner wall of the housing (221), and the movable strips (220) sliding vertically on the surface of the limiting strips (222).

4. The protective welding fixture for the catalytic igniter nozzle according to claim 3, characterized in that: The accessories also include: The elastic ring (223) is fixed inside the upper part of the housing (221). It is made of rubber and has a J-shaped cross section. The elastic ring (223) is disposed between the surfaces of multiple limiting strips (222). Its inner edge is provided with a relief groove that is adapted to the limiting strip (222) for abutting against the movable strip (220) outward.

5. The protective welding fixture for the catalytic igniter nozzle according to claim 3, characterized in that: The accessories also include: Compensation edge (224) is provided at the tail of the movable strip (220). The material of the compensation edge (224) is silicone. A compensation groove is provided at the bottom of the compensation edge (224) for adaptive deformation when it is attached to the surface of the workpiece.

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