Engine cable high and low temperature switching elbow assembly and welding positioning tool

Abstract

The invention relates to an engine cable high-low temperature switching elbow assembly, which comprises a short anti-skid groove, a clamping groove, a long pipe, an elbow, a short pipe and a long anti-skid groove, the elbow is arranged between the long pipe and the short pipe and is communicated with the interiors of the long pipe and the short pipe, the clamping groove is formed in the long pipe, the clamping groove comprises an annular groove and a notch groove, a 120-degree notch is formed in the notch, and the long anti-skid groove is arranged in the annular groove. The short anti-skid groove is formed in the outer side end of the long pipe and connected with a high-temperature section sheath of the engine cable, and the long anti-skid groove is formed in the outer side end of the short pipe and connected with a low-temperature section sheath of the engine cable, so that the friction force between the bent pipe assembly and the sheath is increased, and reliable connection between the bent pipe assembly and the high-temperature section and the low-temperature section of the engine cable is achieved; in short, the cable has the advantages of simple structure, convenience in processing, difficulty in interference with other pipelines and capability of meeting the bending radius requirement of the cable.

Description

Technical Field

[0001] The invention relates to the technical field of engine cables, and in particular to an engine cable high-low temperature transition elbow assembly and a welding positioning tool. Background Art

[0002] The high-temperature section and low-temperature section of the engine cable often adopt different structures, and the high-temperature transition point adopts a metal tube assembly structure. The high-temperature transition point of the traditional engine cable usually uses a straight branch pipe, but in recent years, with the continuous improvement of engine cable performance requirements, in order to reduce the maximum envelope of the engine, the high-temperature transition position of the engine cable needs to be turned, but the existing traditional design structure has many problems. First, the high-temperature transition position of the engine cable is easy to interfere with other pipelines. Secondly, the existing engine cable cannot meet the cable bending radius requirements. Therefore, there is an urgent need for an engine cable high-temperature transition bend pipe assembly and welding positioning tooling to solve the above-mentioned problems. Summary of the invention

[0003] In view of this, the present invention proposes an engine cable high and low temperature transition bend pipe assembly and a welding positioning tool, which are applied to the field of engine cable technology to solve the technical problems that the existing engine cable low temperature transition bend pipe assembly is easy to interfere with other pipelines and does not meet the cable bending radius requirements.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A high-low temperature transition elbow assembly for engine cables comprises a short anti-skid groove, a clamping groove, a long tube, a elbow, a short tube and a long anti-skid groove. The elbow is arranged between the long tube and the short tube and connects the interiors of the long tube and the short tube. The clamping groove is arranged on the long tube. The clamping groove comprises an annular groove and a notch groove. The notch is provided with a 120° notch. The annular groove is used for positioning with a cable clamp. After positioning, the elbow assembly is rotated to rotate the notch groove with a notch at the other end to the intact side, and the cable clamp is cooperated for limiting to achieve rapid installation of the elbow assembly. The short anti-skid groove is arranged at the outer end of the long tube and is connected to the high-temperature section sheath of the engine cable. The long anti-skid groove is arranged at the outer end of the short tube and is connected to the low-temperature section sheath of the engine cable, thereby increasing the friction between the elbow assembly and the sheath and achieving reliable connection with the high-temperature section and the low-temperature section of the engine cable.

[0006] Furthermore, the long tube and the short tube are formed by lathe processing, the bent tube is formed by milling in a machining center, and the long tube and the bent tube, as well as the bent tube and the short tube, are formed by split welding.

[0007] Furthermore, the long tube, curved tube and short tube are all made of stainless steel, which facilitates the insertion of cable harnesses inside and realizes the turning arrangement of the high and low temperature transition position of the engine cable.

[0008] A welding positioning tool for the engine cable high and low temperature transition elbow assembly as described above includes a positioning groove and a dimension center. During the processing, the dimension center of the outer diameter of the elbow is used as the depth reference, and the card groove and the outer contour dimension are used as the lateral reference. During the processing, the annular groove penetrates into the positioning groove, so that the relative positions of the long tube, the elbow, and the short tube are fixed during the welding process, and their displacement due to excessive temperature is limited. The welding shrinkage parameters are comprehensively considered, and the shrinkage is added to the positioning dimension to realize the processing and manufacturing of the elbow assembly.

[0009] Furthermore, the welding positioning fixture is made of hardened steel, and a pressure plate is arranged above the welding positioning fixture, which is rigidly fixed by pressing the pressure plates on both sides during welding.

[0010] Furthermore, the welding positioning tooling is provided with an argon inner hole, which is convenient for filling argon during the cooling and forming process after welding, effectively ensuring the internal weld forming quality and accelerating the cooling speed, and preventing welding deformation caused by uneven heat input after welding.

[0011] The present invention has the following beneficial effects:

[0012] The present invention mentions an engine cable high and low temperature transition elbow assembly and a welding positioning tool. The overall structural design of the elbow assembly realizes the turning arrangement of the high and low temperature transition position of the engine cable. The slot structure design realizes the rapid installation of the elbow assembly. The anti-slip groove is designed to realize the connection with the high temperature section and the low temperature section of the engine cable. The welding positioning tool is designed to fix the relative positions of the long tubes, elbows and short tubes during the welding process to limit their displacement due to excessive temperature. A rigid fixing method is used to prevent welding deformation. After the weldment is cooled and formed, the parts are removed to realize the processing and manufacturing of the elbow assembly. The structure is simple, easy to process, not easy to interfere with other pipelines, and the cable bending radius requirements can be met. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments 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 these drawings without paying creative work.

[0014] Figure 1 A schematic diagram of the structure of a high-low temperature transition elbow assembly for engine cables provided by the present invention;

[0015] Figure 2 A structural schematic diagram of a welding positioning tool for an engine cable high and low temperature transition elbow assembly provided by the present invention;

[0016] Among them: 1. Short anti-skid groove; 2. Card slot; 3. Long tube; 4. Bend tube; 5. Short tube; 6. Long anti-skid groove; 7. Positioning groove; 8. Dimension center. DETAILED DESCRIPTION

[0017] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0018] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0019] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present invention, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0020] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention. The drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0021] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects described may be practiced without these specific details.

[0022] Example 1

[0023] like Figure 1 and Figure 2As shown, an engine cable high and low temperature transition elbow assembly includes a short anti-skid groove 1, a clamping groove 2, a long tube 3, a elbow 4, a short tube 5 and a long anti-skid groove 6. The elbow 4 is arranged between the long tube 3 and the short tube 5, and connects the interior of the long tube 3 and the short tube 5. The clamping groove 2 is arranged on the long tube 3. The clamping groove 2 includes an annular groove and a notch groove. The notch is provided with a 120° notch. The annular groove is used for positioning with the cable clamp. After positioning, the elbow 4 assembly is rotated to rotate the notch groove with a notch at the other end to the intact side, and cooperate with the cable clamp for limiting, so as to realize the rapid installation of the elbow 4 assembly. The short anti-skid groove 1 is arranged at the outer end of the long tube 3 and is connected to the high temperature section sheath of the engine cable. The long anti-skid groove 6 is arranged at the outer end of the short tube 5 and is connected to the low temperature section sheath of the engine cable, so as to increase the friction between the elbow 4 assembly and the sheath, and realize reliable connection with the high temperature section and the low temperature section of the engine cable.

[0024] The long tube 3 and the short tube 5 are formed by lathing, the elbow 4 is formed by milling in a machining center, and the long tube 3 and the elbow 4, as well as the elbow 4 and the short tube 5 are formed by split welding. The long tube 3, the elbow 4 and the short tube 5 are all made of stainless steel, which is convenient for inserting the cable harness inside and realizing the turning arrangement of the high and low temperature transfer position of the engine cable.

[0025] A welding positioning tool for an engine cable high-low temperature transition elbow 4 assembly, comprising a positioning groove 7 and a dimension center 8. During the processing, the dimension center 8 of the outer diameter of the elbow 4 is used as a depth reference, and the slot 2 and the outer contour dimension are used as a lateral reference. During the processing, the annular groove penetrates into the positioning groove 7, so that the relative positions of the long tube 3, the elbow 4, and the short tube 5 are fixed during the welding process, and the displacement caused by excessive temperature is limited. The welding shrinkage parameters are comprehensively considered, and the shrinkage is added to the positioning dimension to realize the processing and manufacturing of the elbow 4 assembly.

[0026] The welding fixture is made of hardened steel, and a pressure plate is set on the top of the welding fixture. During welding, the two sides of the pressure plate are pressed tightly to fix it rigidly. The welding fixture is equipped with an argon inner hole to facilitate the injection of argon during the cooling and forming process after welding, effectively ensuring the quality of the internal weld and accelerating the cooling speed, and preventing welding deformation caused by uneven heat input after welding.

[0027] During use of the welding positioning tooling of the present invention, the dimension center 8 of the outer diameter of the bent pipe 4 is used as the depth reference, and the slot 2 and the outer contour dimension are used as the lateral reference. The annular groove penetrates into the positioning slot 7 during the processing, so that the relative positions of the long pipe 3, the bent pipe 4, and the short pipe 5 are fixed during the welding process, and the displacement caused by excessive temperature is limited. The welding shrinkage parameters are comprehensively considered, and the shrinkage is added to the positioning dimension to realize the processing and manufacturing of the bent pipe 4 assembly. During welding, it is rigidly fixed by pressing on both sides of the pressure plates. At the same time, argon is flushed into the argon inner hole during the cooling and forming process after welding, which effectively ensures the internal weld forming quality and accelerates the cooling speed, thereby preventing welding deformation caused by uneven heat input after welding. In short, the present invention has the advantages of simple structure, convenient processing, not easy to interfere with other pipelines, and meeting the cable bending radius requirements.

[0028] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An engine cable high and low temperature transfer elbow assembly, characterized in that: The invention comprises a short anti-skid groove (1), a clamping groove (2), a long tube (3), a bent tube (4), a short tube (5) and a long anti-skid groove (6); the bent tube (4) is arranged between the long tube (3) and the short tube (5) and communicates with the inside of the long tube (3) and the short tube (5); the clamping groove (2) is arranged on the long tube (3); the clamping groove (2) comprises an annular groove and a notch groove; a 120° notch is arranged on the notch to facilitate the long tube (3) to cooperate with a corresponding cable clamp for position limiting, thereby realizing rapid installation of the bent tube (4) assembly; the short anti-skid groove (1) is arranged at the outer end of the long tube (3) and connected to the high-temperature section sheath of the engine cable; the long anti-skid groove (6) is arranged at the outer end of the short tube (5) and connected to the low-temperature section sheath of the engine cable, thereby increasing the friction between the bent tube (4) assembly and the sheath and realizing reliable connection with the high-temperature section and the low-temperature section of the engine cable.

2. The engine cable high and low temperature transition elbow assembly according to claim 1, characterized in that: The long tube (3) and the short tube (5) are formed by lathe processing, the bent tube (4) is formed by milling in a machining center, and the long tube (3) and the bent tube (4) as well as the bent tube (4) and the short tube (5) are formed by split welding.

3. The engine cable high and low temperature transition elbow assembly according to claim 2, characterized in that: The long tube (3), the curved tube (4) and the short tube (5) are all made of stainless steel, which facilitates the insertion of the cable harness inside.

4. A welding positioning tool for the engine cable high and low temperature transition elbow assembly according to claim 1, characterized in that: It comprises a positioning groove (7) and a dimension center (8). During the processing, the dimension center (8) of the outer diameter of the bent pipe (4) is used as a depth reference, and the clamping groove (2) and the outer contour dimension are used as a lateral reference. During the processing, the annular groove penetrates into the positioning groove (7).

5. The welding positioning tool for the engine cable high and low temperature transition elbow assembly according to claim 4 is characterized in that: The welding positioning tool is made of quenched steel, and a pressure plate is arranged above the welding positioning tool, which is rigidly fixed by pressing the pressure plates on both sides during welding.

6. The welding positioning tool for the engine cable high and low temperature transition elbow assembly according to claim 5, characterized in that: The welding positioning tool is provided with an argon inner hole, which is convenient for injecting argon during the weld forming process, thereby accelerating the cooling speed and preventing welding deformation caused by uneven heat input after welding.

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