A docking positioning welding fixture for a fork-shaped half pipe

Abstract

The present invention belongs to the field of aircraft product tooling design and relates to a docking positioning welding fixture for a fork-shaped half pipe. Fork-shaped pipes are difficult to machine, and it is difficult to ensure dimensional accuracy, resulting in an obvious upward trend in the demand for installation welding fixtures. The docking positioning welding fixture of the present invention is used for positioning and welding a fork-shaped pipe composed of a lower half pipe and an upper half pipe, and includes a half pipe positioning seat and a half pipe pressing block arranged in the middle area of the base, and a joint positioning assembly arranged in the pipe orifice direction; wherein the half pipe positioning seat matches the profile of the forked part of the lower half pipe, the half pipe pressing block matches the profile of the forked part of the upper half pipe, and when the half pipe pressing block presses on the half pipe positioning seat, it compresses the combination of the lower half pipe and the upper half pipe; the joint positioning assembly has a first ejector rod, the first ejector rod has a baffle in the area close to the end, the end of the first ejector rod is inserted into the pipe orifice, and the baffle presses on the pipe orifice. The operation is simple and convenient, it can be inspected and calibrated, and the product qualification rate is significantly improved.

Description

Technical Field

[0001] The present invention belongs to the field of aircraft product tooling design, and relates to a butt joint positioning welding fixture for a fork-shaped half pipe. Background Art

[0002] Fork-shaped pipes are characterized by high processing difficulty and difficult-to-guarantee dimensional accuracy, and are widely used in fields such as aviation, aerospace, chemical industry, shipbuilding, and medical treatment. Especially in recent years, the demand for pipe beam parts composed of similar sheet metals and structural steel joints in the aviation and aerospace fields has increased significantly, so the demand for installation welding fixtures has also shown an obvious upward trend. Summary of the Invention

[0003] Object of the present invention: The present invention provides a butt joint positioning welding fixture for a fork-shaped half pipe, which can quickly realize the welding and shape correction of various parts such as sheet metals and structural steels of the fork-shaped pipe, is simple and convenient to operate, and can ensure the dimensional accuracy requirements of the product at the same time.

[0004] Technical solution of the present invention: Provide a butt joint positioning welding fixture for a fork-shaped half pipe, which is used for positioning and welding a fork-shaped pipe composed of a lower half pipe and an upper half pipe, and includes a half pipe positioning seat and a half pipe pressing block arranged in the middle area of the base, and a joint positioning component arranged in the pipe orifice direction; wherein

[0005] The half pipe positioning seat is matched with the profile of the forked part of the lower half pipe, and the half pipe pressing block is matched with the profile of the forked part of the upper half pipe. When the half pipe pressing block presses on the half pipe positioning seat, the combined body of the lower half pipe and the upper half pipe is tightly pressed.

[0006] The joint positioning component has a first ejector rod, and a baffle is arranged in the area near the end of the first ejector rod. The end of the first ejector rod is inserted into the pipe orifice, and the baffle presses tightly on the pipe orifice.

[0007] Advantageously, the half pipe positioning seat and the half pipe pressing block are transversely constrained by a first pin and a second pin.

[0008] Advantageously, the joint positioning component is fixed on the base through a lower mounting seat, and has a sleeve at the upper part, and a first ejector rod is arranged in the sleeve.

[0009] Advantageously, the first ejector rod has a pin hole and a handle mounting hole at the tail, and the first ejector rod is positioned in the sleeve through a third pin.

[0010] Advantageously, the half pipe positioning seat and the half pipe pressing block form a seat hole after combination.

[0011] Advantageously, a reinforcing piece positioning component is further installed on the base, which is a right-angle structure. The flat part is installed on the base, and a second ejector rod is installed on the vertical part, and a transverse pressing force is applied to the product through the second ejector rod.

[0012] Advantages of the present invention: When the present invention is used for the installation and welding of fork-shaped half-pipe products, the operation is simple and convenient, it can be inspected and shaped, and the product qualification rate is significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] When read in conjunction with the accompanying drawings, the exemplary examples, as well as the preferred modes of use, other objects, and descriptions thereof, will be best understood by reference to the following detailed description of the examples of the present invention, in which:

[0014] Figure 1 is a schematic structural diagram of the butt joint positioning welding fixture of the present invention;

[0015] Figure 2 is a schematic structural diagram of the joint positioning assembly;

[0016] Figure 3 is a schematic structural diagram of the half-pipe positioning assembly;

[0017] Figure 4 is a schematic structural diagram of the reinforcing plate positioning assembly.

[0018] Wherein, 1 - base, 2 - joint positioning assembly, 3 - half-pipe positioning seat, 4 - half-pipe pressing block, 5 - reinforcing plate positioning assembly, 6 - first pin, 7 - second pin, 8 - third pin, 9 - handle mounting hole, 10 - mounting seat, 11 - baffle, 12 - seat hole, 13 - second ejector rod, 14 - first ejector rod, 15 - lower half-pipe, 16 - upper half-pipe, 17 - sleeve DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The disclosed examples will be described more fully with reference to the accompanying drawings, in which some (but not all) of the disclosed examples are shown. In fact, many different examples can be described and these examples should not be construed as limited to the examples set forth herein. Rather, these examples are described so that this disclosure will be thorough and complete and will fully convey the scope of the disclosure to those skilled in the art.

[0020] Embodiment, referring to the accompanying drawings, a fork-shaped pipe installation and welding fixture includes: a base 1, a joint positioning assembly 2, a half-pipe positioning seat 3, a half-pipe pressing block 4, and a reinforcing plate positioning assembly 5.

[0021] The product consists of a lower half tube 15, an upper half tube 16, a joint, and a reinforcement sheet. The fork-shaped tube is welded together from top to bottom. According to the characteristics of the product, each part is independently positioned. The joint positioning assembly 2, the half-tube positioning seat 3, and the reinforcement sheet positioning assembly 5 are fixed to the base 1 according to the theoretical position through screws and pins. The lower half tube 15 of the fork-shaped tube is installed and positioned through the half-tube positioning seat 3, and the upper half tube 16 of the fork-shaped tube is installed and positioned through the half-tube pressing block 4. The half-tube pressing block 4 is connected to the half-tube positioning seat 3 through the first pin 6 and the second pin 7 to position and press the upper and lower half tubes of the fork-shaped tube as a whole. The surface of the seat hole 12 is used to abut against three directions to ensure the stability and reliability of the fork-shaped tube product and reduce the risk of product movement during welding. The product reinforcement sheet and the reinforcement sheet positioning assembly 5 are positioned and tightened to the theoretical position through the second push rod 13. The surface and hole positioning are used to ensure dimensional accuracy, while effectively avoiding the welding area and leaving welding space. The product joint is inserted into the first push rod 14, and the end face of the joint is fitted with the baffle 11. The first push rod 14 is pulled to the theoretical position in the sleeve 17 through the movable handle at the handle installation hole 9, and then the third pin 8 is inserted to fix it. The hole axis positioning is used to simulate the product use state to ensure the relative position relationship of each joint. The sleeve 17 is connected to the base 1 through the mounting seat 10. At this point, all parts of the fork-shaped tube are fixed in place. After temporary welding, the product is taken out for full welding. After welding, it is put back into the fixture for shape correction to obtain a qualified product.

[0022] Different examples of the systems, devices, and methods disclosed herein include various components, features, and functions. It should be understood that the various examples of the systems, devices, and methods disclosed herein may include any of the components, features, and functions of any of the other examples of the systems, devices, and methods disclosed herein in any combination or any sub-combination, and all of these possibilities are intended to fall within the scope of the present invention.

[0023] The description of different advantageous arrangements has been presented for purposes of illustration and description, but the description is not intended to be exclusive or limited to examples of the disclosed form. Many modifications and variations will be apparent to those of ordinary skill in the art. Additionally, different advantageous examples may describe different advantages over other advantageous examples. The selected example or examples are chosen and described in order to best illustrate the principles of the examples, the practical application, and to enable those of ordinary skill in the art to understand the disclosure with various examples with various modifications suitable for the particular use contemplated.

Claims

1. A butt joint positioning welding fixture for a fork-shaped half pipe, which is used for positioning and welding a fork-shaped pipe composed of a lower half pipe (15) and an upper half pipe (16), and is characterized in that: It includes a semi-tube positioning seat (3) and a semi-tube pressing block (4) arranged in the middle area of the base (1), and a joint positioning assembly (2) arranged in the pipe orifice direction; among them The semi-tube positioning seat (3) is matched with the profile of the bifurcated part of the lower semi-tube (15), the semi-tube pressing block (4) is matched with the profile of the bifurcated part of the upper semi-tube (16), the semi-tube positioning seat (3) and the semi-tube pressing block (4) form a seat hole (12) after combination. When the semi-tube pressing block (4) presses on the semi-tube positioning seat (3), it compresses the combination of the lower semi-tube (15) and the upper semi-tube (16). The semi-tube positioning seat (3) and the semi-tube pressing block (4) are transversely constrained by a first pin (6) and a second pin (7); The joint positioning assembly (2) has a first ejector rod (14). The first ejector rod (14) has a baffle (11) in the area close to the end. The end of the first ejector rod (14) is inserted into the pipe orifice, and the baffle (11) compresses the pipe orifice.

2. The docking and positioning welding fixture according to claim 1, wherein: The joint positioning assembly (2) is fixed on the base (1) through a lower mounting seat (10), and has a sleeve (17) at the upper part. The first ejector rod (14) is arranged in the sleeve (17).

3. The docking positioning welding fixture according to claim 2, characterized in that: The first ejector rod (14) has a pin hole and a handle mounting hole (9) at the tail. The first ejector rod (14) is positioned in the sleeve (17) through a third pin (8).

4. The docking positioning and welding fixture according to claim 1, characterized in that: A reinforcing piece positioning assembly (5) is also installed on the base (1). It is a right-angle structure. The flat part is installed on the base (1), and a second ejector rod (13) is installed on the vertical part. A transverse pressing force is applied to the product through the second ejector rod (13).

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