Ellipsoidal molded surface three-dimensional space in-situ milling and tapping tool

Abstract

The invention belongs to the technical field of special-shaped curved surface flange welding trepanning, and particularly relates to an ellipsoid molded surface three-dimensional space in-situ milling trepanning technology which comprises a supporting film tire used for fixing and supporting an ellipsoid bottom, a center rotating shaft is arranged in the center of the supporting film tire, and a rotating supporting mechanism assembly is fixedly installed on the center rotating shaft. The rotary supporting mechanism assembly is located above the ellipsoid bottom. The rotary supporting mechanism assembly comprises an upper fixing ring, a lower fixing ring and a rotary sleeve. The upper fixing ring and the lower fixing ring are fixedly connected to the center rotating shaft, and the rotating sleeve is arranged on the center rotating surface in a sleeving mode. And one side of the rotating sleeve is hinged with the milling cutter fixing and adjusting assembly. According to the invention, the center adapter shaft is used as a rotation center, and the drilling operation of the ellipsoid bottom in a three-dimensional space is realized through a lever force application mechanism by adopting a milling cutter cutting machining mode.

Description

Technical Field

[0001] The invention belongs to the technical field of special-shaped curved surface hole opening, and in particular relates to an ellipsoidal surface three-dimensional space in-situ milling hole opening tool. Background Art

[0002] According to the manufacturing technology requirements, after the ellipsoid bottom is welded, the top cover and flange ring seam need to be welded, and hole opening and assembly are required before welding. At present, a drill is mostly used for drilling holes in the ring. Through manual operation, a circle of small holes is drilled along the cutting line to remove the excess material. After the cutting is completed, a pneumatic milling cutter is required to mill the drilling area to realize the hole opening operation of the ellipsoid bottom. This operation method has high labor intensity, low operation efficiency, poor operation quality, and is prone to misoperation.

[0003] For drilling holes on the three-dimensional surface of the ellipsoid bottom, due to the limitations of the on-site equipment and process layout, it is necessary to customize professional drilling tooling or process equipment. The customization cost is high and the difficulty is great, and it is impossible to use automated drilling operations. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an ellipsoidal surface three-dimensional space in-situ milling hole opening tool. With the help of the existing tooling mechanism, the original tooling center adapter axis is used as the rotation center, and a lever force mechanism is used to adopt a milling cutter cutting method to achieve the three-dimensional space ellipsoid bottom hole opening operation.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A three-dimensional curved in-situ hole-making tool for an ellipsoidal bottom comprises a supporting membrane tire for fixing and supporting the ellipsoidal bottom, a central rotating shaft being provided at the center of the supporting membrane tire, a rotating support mechanism assembly being fixedly mounted on the central rotating shaft, and the rotating support mechanism assembly being located above the ellipsoidal bottom; the rotating support mechanism assembly comprises an upper fixing ring, a lower fixing ring and a rotating sleeve; the upper fixing ring and the lower fixing ring are fixedly connected to the central rotating shaft, and the rotating sleeve is installed between the upper fixing ring and the lower fixing ring; one side of the rotating sleeve is hinged to the milling cutter fixing adjustment assembly.

[0007] Specifically, the milling cutter fixing and adjusting assembly comprises a force-applying support rod and an adjusting sleeve, wherein the force-applying support rod is hinged to the rotating sleeve; and a guide positioning key is provided on the surface of the force-applying support rod.

[0008] Specifically, the adjusting sleeve is provided with a guide keyway for installing a guide positioning key, and the adjusting sleeve is detachably connected to the force support rod.

[0009] Specifically, a milling cutter power source is fixedly installed on the lower side of the adjusting sleeve, and a milling cutter is connected to the output end of the milling cutter power source. The milling cutter power source is used to drive the milling cutter to realize milling processing.

[0010] Specifically, the rotating sleeve is also provided with a fastening screw for adjusting the sleeve to be fixed at the position of the force support rod.

[0011] The present invention has the following advantages:

[0012] (1) The present invention realizes the semi-automation of the three-dimensional hole-opening operation on the ellipsoidal surface, replacing the original drilling hole-opening method. It not only improves the hole-opening quality, but also greatly improves the hole-opening efficiency and improves the convenience of operation. Through trial use, the method has effectively improved the safety and reliability of the hole-opening operation, improved the working conditions, and reduced the labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the operation of an ellipsoid bottom in-situ milling tool of the present invention.

[0014] Figure 2 This is a schematic diagram of the assembly of the rotating shaft of the present invention.

[0015] Figure 3 It is a schematic diagram of the milling cutter position adjustment structure of the present invention;

[0016] In the figure, 1. supporting membrane; 2. ellipsoidal bottom; 3. central rotating axis; 4. rotating supporting mechanism assembly; 4-1. lower fixing ring; 4-2. rotating sleeve; 4-3. upper fixing ring; 5. milling cutter fixing adjustment assembly; 5-1. force support rod; 5-2. milling cutter power source; 5-3. milling cutter; 5-4. fastening screw; 5-5. adjusting sleeve; 5-6. guide positioning key; 6. operator. DETAILED DESCRIPTION

[0017] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0018] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] like Figure 1-3 As shown, the present embodiment provides an in-situ hole-punching tool for a three-dimensional curved surface with an ellipsoidal bottom, which utilizes the center axis of the original welding tool or adds a rotating center axis at the position of the hole to be punched, and adopts a cutting method of a milling cutter 5-3 through a lever force amplification mechanism. By adjusting the position of the milling cutter 5-3, the hole-punching operation with different apertures can be achieved.

[0020] It comprises a supporting membrane tire 1 for fixing and supporting an ellipsoidal bottom 2, wherein a central rotating shaft 3 is provided at the center of the supporting membrane tire 1, and the central rotating shaft 3 is fixed to the hole-opening supporting membrane tire 1, and is used for providing support and rotation for milling hole-opening operations; a rotating support mechanism assembly 4 is fixedly installed on the central rotating shaft 3, and the rotating support mechanism assembly 4 is located above the ellipsoidal bottom 2; the rotating support mechanism assembly 4 comprises an upper fixing ring 4-3, a lower fixing ring 4-1 and a rotating sleeve 4-2; the upper fixing ring 4-3 and the lower fixing ring 4-1 are fixedly connected to the central rotating shaft 3, and the rotating sleeve 4-2 is installed between the upper fixing ring (4-3) and the lower fixing ring (4-1); one side of the rotating sleeve 4-2 is hinged to the milling cutter fixing adjustment assembly 5.

[0021] In this embodiment, the milling cutter fixing adjustment assembly 5 includes a force support rod 5-1 and an adjustment sleeve 5-5. The force support rod 5-1 is hinged to the rotating sleeve 4-2; a guide positioning key 5-6 is provided on the surface of the force support rod 5-1. The adjusting sleeve 5-5 is provided with a guide keyway for installing the guide positioning key 5-6, and the adjusting sleeve is detachably connected to the force support rod 5-1. A power source 5-2 for the milling cutter 5-3 is fixedly installed on the lower side of the adjusting sleeve 5-5. The output end of the power source 5-2 for the milling cutter 5-3 is connected to the milling cutter 5-3. The power source 5-2 for the milling cutter 5-3 is used to drive the milling cutter 5-3 to realize milling processing. The rotating sleeve 4-2 is also provided with a fastening screw 5-4, which is used to fix the adjusting sleeve 5-5 at the position of the force support rod 5-1.

[0022] In this embodiment, the rotating support mechanism assembly 4 is fixed to the central rotating shaft 3; the lower fixing ring 4-1 and the upper fixing ring 4-3 are fixed to the central rotating shaft 3 to realize the rotation positioning of the rotating sleeve 4-2; the rotating sleeve 4-2 is connected to the milling cutter fixing adjustment assembly 5 through a hinge structure to realize the milling hole opening operation; the force support rod 5-1 is connected to the rotating sleeve 4-2, and the force support rod 5-1 is formed with a guide keyway to realize the installation of the guide positioning key 5-6; the milling cutter 5-3 power source 5-2 is connected to the adjusting sleeve 5-5 to drive the milling cutter 5-3 to realize Milling processing is now performed; the adjusting sleeve 5-5 is connected to the force support rod 5-1 to achieve adjustment along the length direction of the support rod; the guide positioning key 5-6 is installed on the force support rod 5-1 to maintain the directional movement of the adjusting sleeve 5-5 and ensure the controllable milling processing position; the fastening screw 5-4 is installed on the adjusting sleeve 5-5 to fix the adjusting sleeve 5-5 to the force support rod 5-1 after the position is adjusted; after the milling cutter 5-3 fixing assembly is adjusted into place, the operator operates the force support rod 5-1 to rotate along the central rotation axis 3 to achieve the milling and opening operation of the ellipsoid bottom 2.

[0023] The present embodiment provides an in-situ hole-punching tool for a three-dimensional curved surface with an ellipsoidal bottom, wherein the center axis can use the original tooling center axis or a newly made center axis to provide a rotation support point; the rotating sleeve is installed on the center axis and positioned by upper and lower positioning blocks to realize the installation and rotation of the adjusting rod; the adjusting rod is connected to the rotating sleeve to realize the installation and position adjustment of the milling cutter 5-3 power source 5-2; the milling power source is connected to the adjusting rod through a power source fixing seat; the power source fixing seat is adjusted to realize power output at different positions; the milling cutter 5-3 is installed on the milling cutter power source 5-2 to provide cutting power.

[0024] This embodiment realizes the semi-automation of the three-dimensional space hole opening operation of the ellipsoidal surface, replacing the original drilling hole opening method, which not only improves the hole opening quality, but also greatly improves the hole opening efficiency and improves the convenience of operation. Through trial use, this method has effectively improved the safety and reliability of the hole opening operation, improved the working conditions, and reduced labor intensity.

[0025] The present invention is not limited to the aforementioned specific embodiments. The present invention extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed. Those of ordinary skill in the art will appreciate that the embodiments described herein are intended to help readers understand the principles of the present invention, and should be understood that the scope of protection of the present invention is not limited to such specific statements and embodiments.

[0026] A person skilled in the art may, based on the technical teachings disclosed in the present invention, make various other specific modifications and combinations without departing from the essence of the present invention, and these modifications and combinations are still within the protection scope of the present invention.

Claims

1. An ellipsoid bottom three-dimensional curved surface in-situ hole-making tool, comprising a supporting membrane (1) for fixing and supporting the ellipsoid bottom (2), characterized in that: A central rotating shaft (3) is provided at the center of the supporting membrane tire (1), and a rotating support mechanism assembly (4) is fixedly installed on the central rotating shaft (3), and the rotating support mechanism assembly (4) is located above the ellipsoid bottom (2); the rotating support mechanism assembly (4) comprises an upper fixing ring (4-3), a lower fixing ring (4-1) and a rotating sleeve (4-2); the upper fixing ring (4-3) and the lower fixing ring (4-1) are fixedly connected to the central rotating shaft (3), and the rotating sleeve (4-2) is installed between the upper fixing ring (4-3) and the lower fixing ring (4-1); one side of the rotating sleeve (4-2) is hinged to the milling cutter fixing adjustment assembly (5).

2. The in-situ hole-making tool for an ellipsoidal bottom three-dimensional curved surface according to claim 1, characterized in that: The milling cutter fixing and adjusting assembly (5) comprises a force-applying support rod (5-1) and an adjusting sleeve (5-5); the force-applying support rod (5-1) is hinged to a rotating sleeve (4-2); and a guide positioning key (5-6) is provided on the surface of the force-applying support rod (5-1).

3. The in-situ hole-making tool for an ellipsoidal bottom three-dimensional curved surface according to claim 2, characterized in that: The adjusting sleeve (5-5) is provided with a guide keyway for installing a guide positioning key (5-6), and the adjusting sleeve is detachably connected to the force-applying support rod (5-1).

4. The in-situ hole-making tool for an ellipsoidal bottom three-dimensional curved surface according to claim 3, characterized in that: A milling cutter power source (5-2) is fixedly mounted on the lower side of the adjusting sleeve (5-5); an output end of the milling cutter power source (5-2) is connected to a milling cutter (5-3); the milling cutter power source (5-2) is used to drive the milling cutter (5-3) to achieve milling processing.

5. The in-situ hole-making tool for an ellipsoidal bottom three-dimensional curved surface according to claim 1, characterized in that: The rotating sleeve (4-2) is also provided with a fixing screw (5-4) for fixing the adjusting sleeve (5-5) at the position of the force-applying support rod (5-1).

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