Welding equipment for stainless steel rocket storage tank

Abstract

The invention provides welding equipment for a stainless steel rocket storage tank. The welding equipment comprises a supporting base, a scalloped segment rotating supporting assembly, a scalloped segment inner tube, a top cover inner tube and a lifting shaft. The scalloped segment rotary supporting assembly is arranged on the supporting base so as to support the scalloped segment inner tube and the bottom of the scalloped segment; the scalloped segment inner tube is provided with a molded surface matched with the inner side face of a scalloped segment, and the inner side face of the scalloped segment is supported so as to weld a longitudinal seam of the scalloped segment. The lifting shaft is arranged in the middle of the supporting base, the top cover inner tube is fixedly arranged on the lifting shaft, and the top cover inner tube is used for supporting a top cover so as to weld a scalloped segment ring and the top cover. The welding equipment can improve the welding seam performance, and can simplify the manufacturing process of the elliptical head.

Description

Technical Field

[0001] The invention relates to the field of rocket tanks, and in particular to welding equipment for stainless steel rocket tanks. Background Art

[0002] In the existing large-diameter stainless steel rocket tank manufacturing process, there are several major difficulties in manufacturing stainless steel head melon segments. First, the secondary clamping is difficult to control: the melon segment itself is a stainless steel plate with an elliptical arc shape. The plate is thin and has low rigidity. The secondary clamping is prone to deformation, which may cause the gap of the assembly weld to change, resulting in reduced welding accuracy. Second, the dimensional accuracy of a single melon segment and the dimensional accuracy of the melon segment butt welding assembly are high: the stainless steel head is large in size, and the melon segment plate is very thin, so the melon segment has high requirements for shape retention. Third, the manufacturing process is complicated. Therefore, the welding of melon segments and heads can usually only be done by online cutting and online welding.

[0003] In order to streamline the manufacturing process of rocket tanks and improve welding accuracy, it is particularly important to design a welding equipment for stainless steel rocket tanks. Summary of the invention

[0004] The object of the present invention is to overcome the deficiencies of the prior art and to provide a welding device for a stainless steel rocket tank.

[0005] The present invention provides a welding device for a stainless steel rocket tank, comprising: a support base, a melon slice rotating support assembly, a melon slice inner tube, a top cover inner tube and a lifting shaft; the melon slice rotating support assembly is arranged on the support base to support the melon slice inner tube and the melon slice bottom; the melon slice inner tube has a profile matched with the inner side surface of the melon slice, supports the inner side surface of the melon slice, so as to weld the longitudinal seam of the melon slice; the lifting shaft is arranged in the middle of the support base, the top cover inner tube is fixedly arranged on the lifting shaft, and the top cover inner tube is used to support the top cover, so as to weld the melon slice ring and the top cover.

[0006] According to one embodiment of the present invention, the melon segment rotating support assembly can rotate around the circumferential direction of the support base, driving the melon segment inner tube and the melon segment to rotate, so as to weld the melon segment into a melon segment ring.

[0007] According to one embodiment of the present invention, the melon slice rotating support assembly is provided with a melon slice inner tube lower clamping mechanism along its circumferential direction; the melon slice inner tube lower clamping mechanism comprises a lower clamping drive cylinder and a lower clamping block, and the lower clamping drive cylinder is extended and retracted to drive the lower clamping block toward or away from the melon slice to fit the bottom of the melon slice to the melon slice inner tube or release the melon slice.

[0008] According to one embodiment of the present invention, below the inner tube of the top cover, the lifting shaft is provided with an upper clamping mechanism base, and the upper clamping mechanism base is provided with a melon slice upper clamping mechanism along its circumferential direction; the melon slice upper clamping mechanism includes an upper clamping drive cylinder and an upper clamping block, and the upper clamping drive cylinder is telescoped to drive the upper clamping block toward or away from the top of the melon slice, so as to clamp the top of the melon slice to the upper clamping mechanism base or release the melon slice, so as to weld the longitudinal seam of the melon slice.

[0009] According to one embodiment of the present invention, it also includes a top cover pressing outer tire, which is used to press the top cover to the top cover inner tube; the top cover pressing outer tire is provided with a top cover pressing mechanism along its circumferential direction; the top cover pressing mechanism includes a top cover pressing drive cylinder and a top cover pressing block, and the top cover pressing drive cylinder is extended and retracted to drive the top cover pressing block toward or away from the top cover, so as to press the circumferential side of the top cover to the top cover inner tube or release the top cover.

[0010] According to one embodiment of the present invention, the lifting shaft is provided with a melon slice back protection mechanism which can rotate around it; near the melon slice inner tube, the melon slice back protection mechanism is provided with an arc groove which is adapted to the melon slice longitudinal seam; the arc groove is used to provide protective gas to the melon slice longitudinal seam so as to protect the melon slice longitudinal seam during welding.

[0011] According to one embodiment of the present invention, below the top cover inner tube, the lifting shaft is provided with a top cover welding back protection module, and the top cover welding back protection module includes a top cover back protection base sleeved on the lifting shaft; near the top cover annular seam, the top cover back protection base is provided with a top cover back gas protection module; the top cover back gas protection module is used for providing protective gas to the top cover annular seam to protect the top cover annular seam during welding.

[0012] According to one embodiment of the present invention, the lifting shaft includes a bottom lifting shaft and a middle screw shaft, and the bottom lifting shaft is a hollow structure; the middle screw shaft is sleeved in the hollow structure, and the middle screw shaft can be lifted and lowered relative to the bottom lifting shaft along the axial direction to drive the top cover inner tube to lift and lower.

[0013] According to one embodiment of the present invention, the melon slice rotating support assembly includes an inner tube mold rotating mechanism and an inner tube mold base which are sleeved on the support base, and the inner tube mold base is used to support the melon slice inner tube and melon slice; the inner tube mold rotating mechanism can rotate relative to the support base to drive the inner tube mold base to rotate.

[0014] According to one embodiment of the present invention, a top cover tire clamping device is arranged in the middle part of the top cover inner tube, and a corresponding clamping device avoidance hole is arranged on the top cover clamping tire; the top cover tire clamping device comprises a top cover tire clamping driving cylinder and a top cover tire clamping block; the top cover tire clamping device passes through the clamping device avoidance hole, and the top cover tire clamping driving cylinder is extended and retracted to drive the top cover tire clamping block toward or away from the top cover clamping tire, so as to press the middle part of the top cover clamping tire to the top cover inner tube or release the top cover clamping tire.

[0015] According to the welding equipment for stainless steel rocket tanks of the present invention, by first cutting or welding the top cover and the melon segment and then butt-welding the top cover and the melon ring, the weld performance is improved and the manufacturing process of the elliptical head can be simplified.

[0016] It should be understood that the above general description and the following detailed description are merely exemplary and illustrative and are not intended to limit the scope of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following drawings are a part of the specification of the present invention, and illustrate exemplary embodiments of the present invention. Together with the description of the specification, the accompanying drawings are used to explain the principles of the invention.

[0018] Figure 1 is a perspective view of a welding device for a stainless steel rocket tank according to an embodiment of the present invention;

[0019] Figure 2 is a perspective view of a welding device for a stainless steel rocket tank according to an embodiment of the present invention;

[0020] Figure 3 is a disassembly diagram of a welding device for a stainless steel rocket tank according to an embodiment of the present invention;

[0021] Figure 4 is a three-dimensional diagram of a lower pressing drive cylinder according to an embodiment of the present invention;

[0022] Figure 5 It is a three-dimensional diagram of a pressing mechanism on a melon slice according to an embodiment of the present invention;

[0023] Figure 6 is a perspective view of a welding device for a stainless steel rocket tank according to an embodiment of the present invention;

[0024] Figure 7 is a three-dimensional diagram of a top cover pressing a tire according to an embodiment of the present invention;

[0025] Figure 8 is a three-dimensional view of a top cover inner tube according to an embodiment of the present invention;

[0026] Fig. 9is a three-dimensional diagram of a melon slice back protection mechanism according to an embodiment of the present invention;

[0027] Fig.10 is a three-dimensional diagram of a top cover welding back protection module according to an embodiment of the present invention;

[0028] Fig.11 yes Fig.10 A front view of

[0029] Fig.12 yes Fig.11 The cross-sectional view in the AA direction;

[0030] Fig.13 is a three-dimensional diagram of a lifting shaft according to an embodiment of the present invention;

[0031] Fig.14 yes Fig.13 Exploded diagram of

[0032] Fig.15 is a three-dimensional diagram of an inner tube mold rotating mechanism according to an embodiment of the present invention;

[0033] Fig.16 is a three-dimensional diagram of an inner tube mold base according to an embodiment of the present invention;

[0034] Fig.17 yes Fig.16 The split diagram of

[0035] Fig.18 is a bottom view of a semicircular ring of an inner tube mold base according to an embodiment of the present invention;

[0036] Fig.19 is a three-dimensional view of a semicircular ring of an inner tube mold base according to an embodiment of the present invention;

[0037] Fig. 20 is a top view of a semicircular ring of an inner tube mold base according to an embodiment of the present invention;

[0038] Fig.21 yes Fig. 20 The cross-section of BB;

[0039] Fig. 22 is a three-dimensional diagram of a top cover tire clamping device according to an embodiment of the present invention;

[0040] Fig.23 is a three-dimensional diagram of a base of an upper clamping mechanism according to an embodiment of the present invention;

[0041] Fig.24 is a three-dimensional diagram of a base of an upper clamping mechanism according to an embodiment of the present invention;

[0042] Fig.25 is a cross-sectional view of an upper clamping mechanism base according to an embodiment of the present invention;

[0043] Fig.26 is a three-dimensional diagram of a support base positioning module according to an embodiment of the present invention;

[0044] Fig. 27 is a three-dimensional diagram of an inner tube frame according to an embodiment of the present invention;

[0045] Fig.28 is a three-dimensional diagram of an inner tube outer mold according to an embodiment of the present invention;

[0046] Fig.29 is a top view of a top cover pressing a tire according to an embodiment of the present invention;

[0047] Fig.30 It is a front view of a semicircular ring of an inner tube mold base according to an embodiment of the present invention.

[0048] Description of reference numerals:

[0049] 1-1 Melon slice inner tube; 1-2 Melon slice upper pressing mechanism; 1-3 Melon slice inner tube lower pressing mechanism; 1-4 Inner tube mold base; 1-5 Inner tube mold rotating mechanism; 1-6 Support base; 1-7 Support leg; 1-8 Top cover pressing outer tube; 1-9 Top cover welding back protection module; 1-12 Top cover inner tube; 1-13 Melon slice back protection mechanism; 1-14 Upper pressing mechanism base; 1-15 Limiting frame; 1-16 Lifting shaft;

[0050] 1-1-1 Inner tube skeleton; 1-1-2 Inner tube outer mold; 1-1-2-1 Melon slice bottom cylindrical section; 1-1-2-2 Positioning pin; 1-1-2-3 Melon slice transition section; 1-1-2-4 Melon slice elliptical upper section; 1-1-2-5 Baffle; 1-1-2-6 Laser cutting groove; 1-2-1 Upper clamping installation base; 1-2-2 Upper clamping drive cylinder; 1-2-3 Upper clamping block; 1-2-4 Upper clamping lever; 1-3-1 Lower clamping drive cylinder; 1-3-2 Lower clamping block; 1-4-1 Inner tube mold base bottom plate; 1-4-2 Melon slice mold base; 1-4-3 Melon slice mold base support rail; 1-4-4 Positioning guide cylindrical wheel; 1-4- 5 base outer cylindrical meshing gear; 1-4-6 bottom plate guide rail; 1-4-7 active inner tube mold base linear guide module; 1-4-8 driven inner tube mold base linear guide module; 1-5-1 rotating cylindrical meshing gear; 1-5-2 slewing mechanism; 1-5-3 inner tube mold base guide slot module; 1-8-1 top cover clamping mechanism; 1-8-2 reinforcing plate; 1-8-3 clamping device avoidance hole; 1-8-4 top cover clamping outer tube positioning circular hole; 1-8-5 guide positioning circular hole; 1-9-1 top cover back protection outer cylindrical meshing gear; 1-9-2 top cover back protection base; 1-9-3 top cover back protection linear guide; 1-9-4 top cover back lifting shaft; 1-9 -5 spot welding tension wheel; 1-9-6 top cover back gas protection groove; 1-9-7 top cover back protection support; 1-12-1 arc inner tube; 1-12-2 positioning pin; 1-12-3 top cover outer tire clamping device; 1-12-4 positioning guide column; 1-12-3-1 top cover outer tire clamping drive cylinder; 1-12-3-2 top cover outer tire clamping block; 1-13-1 melon slice back protection outer cylindrical meshing gear; 1-13-2 melon slice back protection base; 1-13-3 melon slice welding back protection bracket; 1-13-4 melon slice cutting back protection bracket; 1-13-5 melon slice back protection sleeve; 1-13-3-1 arc back protection groove; 1-13-4-1 arc shaped protective groove; 1-14-1 upper clamping mechanism base sleeve; 1-14-2 upper clamping mechanism base limiting ring; 1-14-3 upper clamping mechanism support base; 1-14-4 support base positioning module; 1-14-4-1 support base positioning drive cylinder; 1-14-4-2 support base positioning block; 1-16-1 bottom lifting shaft; 1-16-2 middle screw shaft; 1-16-1-1 bottom base; 1-16-1-2 bottom lifting shaft linear guide; 1-16-1-3 bottom lifting rod; 1-16-1-4 bottom mounting seat; 1-16-2-1 screw shaft base; 1-16-2-2 middle lifting rod; 2-melon peel outer clamping component. DETAILED DESCRIPTION

[0051] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present invention and are used to illustrate the principles of the present invention, and are not configured to limit the present invention. In addition, the structural components in the drawings are not necessarily drawn to scale. For example, the sizes of some structural components or areas in the drawings may be enlarged for other structural components or areas to help understand the embodiments of the present invention.

[0052] The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structure of the embodiments of the present invention. In the description of the present invention, it should be noted that, unless otherwise specified, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0053] In addition, the terms "include", "comprise", "have" or any other variations thereof are intended to cover non-exclusive inclusion, so that a structure or component including a series of elements includes not only those elements, but also other mechanical elements that are not explicitly listed or inherent in the structure or component. In the absence of more restrictions, the elements defined by the sentence "include..." do not exclude the existence of other identical elements in the article or device including the elements.

[0054] Spatially related terms such as "below", "beneath", "under", "low", "above", "on", "high", etc. are used to facilitate description to explain the positioning of one element relative to a second element, indicating that these terms are intended to cover different orientations of the device in addition to orientations different from those shown in the figures. In addition, for example, "one element is above / below another element" can mean that the two elements are in direct contact, or that there are other elements between the two elements. In addition, terms such as "first", "second", etc. are also used to describe various elements, regions, parts, etc., and do not specifically refer to the meaning of order or sequence, and should not be regarded as limiting. Similar terms are used throughout the description to represent similar elements.

[0055] In the process of describing the present invention below, in certain scene descriptions, only "rocket", "launch vehicle", "spacecraft", "space launch vehicle" or "missile" may be used. This is only for the convenience of description, and its connotation is not limited to the specific words used. Generally, the rocket of the present invention includes both launch vehicles or space launch vehicles for carrying satellites or spacecraft or other probes, and various types of missiles, rockets and other weapons for carrying military payloads, as well as similar products that can send payloads into the air. When interpreting the above specific words, those skilled in the art shall not limit the rocket to only one of the launch vehicle or missile based on the specific words used to describe the scene, thereby narrowing the scope of protection of the present invention.

[0056] For those skilled in the art, the present invention can be implemented without some of these specific details. The following description of the embodiments is only intended to provide a better understanding of the present invention by showing examples of the present invention.

[0057] Figure 1 is a perspective view of a welding device for a stainless steel rocket tank according to an embodiment of the present invention; Figure 2 is a perspective view of a welding device for a stainless steel rocket tank according to an embodiment of the present invention; Figure 3 is a disassembly diagram of a welding device for a stainless steel rocket tank according to an embodiment of the present invention; Figure 4 is a three-dimensional diagram of a lower pressing drive cylinder according to an embodiment of the present invention; Figure 5 It is a three-dimensional diagram of a pressing mechanism on a melon slice according to an embodiment of the present invention; Figure 6 is a perspective view of a welding device for a stainless steel rocket tank according to an embodiment of the present invention; Figure 7 is a three-dimensional diagram of a top cover pressing a tire according to an embodiment of the present invention; Figure 8 is a three-dimensional view of a top cover inner tube according to an embodiment of the present invention; Fig. 9 is a three-dimensional diagram of a melon slice back protection mechanism according to an embodiment of the present invention; Fig.10 is a three-dimensional diagram of a top cover welding back protection module according to an embodiment of the present invention; Fig.11 yes Fig.10 A front view of Fig.12 yes Fig.11 The cross-sectional view in the AA direction; Fig.13 is a three-dimensional diagram of a lifting shaft according to an embodiment of the present invention; Fig.14 yes Fig.13 Exploded diagram of Fig.15 is a three-dimensional diagram of an inner tube mold rotating mechanism according to an embodiment of the present invention; Fig.16 is a three-dimensional diagram of an inner tube mold base according to an embodiment of the present invention; Fig.17 yes Fig.16 The split diagram of Fig.18is a bottom view of a semicircular ring of an inner tube mold base according to an embodiment of the present invention; Fig.19 is a three-dimensional view of a semicircular ring of an inner tube mold base according to an embodiment of the present invention; Fig. 20 is a top view of a semicircular ring of an inner tube mold base according to an embodiment of the present invention; Fig.21 yes Fig. 20 The cross-section of BB; Fig. 22 is a three-dimensional diagram of a top cover tire clamping device according to an embodiment of the present invention; Fig.23 is a three-dimensional diagram of a base of an upper clamping mechanism according to an embodiment of the present invention; Fig.24 is a three-dimensional diagram of a base of an upper clamping mechanism according to an embodiment of the present invention; Fig.25 is a cross-sectional view of an upper clamping mechanism base according to an embodiment of the present invention; Fig.26 is a three-dimensional diagram of a support base positioning module according to an embodiment of the present invention; Fig. 27 is a three-dimensional diagram of an inner tube frame according to an embodiment of the present invention;

[0058] Fig.28 is a three-dimensional diagram of an inner tube outer mold according to an embodiment of the present invention; Fig.29 is a top view of a top cover pressing a tire according to an embodiment of the present invention; Fig.30 It is a front view of a semicircular ring of an inner tube mold base according to an embodiment of the present invention.

[0059] like Figure 1 , 2 As shown in Figure 3, the present invention provides a welding device for a stainless steel rocket tank, comprising: a support base 1-6, a melon slice rotating support assembly, a melon slice inner tube 1-1, a top cover inner tube 1-12, and a lifting shaft 1-16. The melon slice rotating support assembly is disposed on the support base 1-6 to support the melon slice inner tube 1-1 and the bottom of the melon slice. The melon slice inner tube 1-1 has a profile that matches the inner side of the melon slice, and supports the inner side of the melon slice to weld the longitudinal seam of the melon slice. The lifting shaft 1-16 is disposed in the middle of the support base 1-6, and the top cover inner tube 1-12 is fixedly disposed on the lifting shaft 1-16. The top cover inner tube 1-12 is used to support the top cover to weld the melon slice ring and the top cover.

[0060] The welding equipment of this embodiment can be applied to the production of elliptical heads by online cutting and online welding (such as laser penetration welding). The welding equipment first sequentially cuts and welds several melon petal longitudinal seams to manufacture melon petal rings or melon petal segments, then cuts the butt edges of the top cover and the melon petal segments, and finally butts the top cover with the melon petal ring to complete the welding of the butt annular seams, thus completing the manufacture of the elliptical head. The welding equipment can control the shape and size of the melon petal segments and the top cover to prevent their deformation, improve the weld performance, and simplify the manufacturing process of the elliptical head. In addition, the welding equipment can complete the cutting and welding of the melon petals with one clamping, thus avoiding the deformation of the melon petals caused by the secondary clamping of the melon petals.

[0061] In this embodiment, the end surface of the melon segment inner tube supporting the melon segment can be an arc surface adapted to the inner side surface of the melon segment. Along the circumferential direction of the melon segment rotation support assembly, a plurality of melon segment inner tubes can be provided, and the melon segment inner tubes correspond to the melon segments one by one. For example, for a melon segment ring manufactured by welding 16 melon segments, 16 melon segment inner tubes can be provided.

[0062] Furthermore, a plurality of (for example, 16) supporting legs 1-7 are provided along the circumferential direction of the lower end surface of the supporting base 1-6, and the supporting legs 1-7 are used to support the supporting base 1-6.

[0063] According to one embodiment of the present invention, the melon slice rotating support assembly can rotate around the circumferential direction of the support base 1-6, driving the melon slice inner tube 1-1 and the melon slice to rotate, so as to weld the melon slice into a melon slice ring.

[0064] The welding equipment of this embodiment, by providing a melon slice rotating support assembly that can rotate around a support base, can achieve welding of all melon slice longitudinal seams without moving the positions of the welding equipment and the cutting equipment, thereby ensuring the consistency of weld quality.

[0065] like Figure 1 and 4 As shown, according to one embodiment of the present invention, a melon slice rotating support assembly is provided with a melon slice inner tube lower clamping mechanism 1-3 along its circumferential direction. The melon slice inner tube lower clamping mechanism 1-3 comprises a lower clamping drive cylinder 1-3-1 and a lower clamping block 1-3-2. The lower clamping drive cylinder 1-3-1 is telescopically driven to drive the lower clamping block 1-3-2 toward or away from the melon slice, so as to fit the bottom of the melon slice to the melon slice inner tube 1-1 or release the melon slice.

[0066] The welding equipment of this embodiment can make the melon slices (especially the lower part of the melon slices) fit to the melon slice inner tube through the melon slice inner tube lower pressing mechanism, thereby improving the cutting and welding assembly accuracy of the melon slices. The lower pressing block is used to press the end face of the melon slice, and can be an arc-shaped surface that matches the outer side surface of the melon slice. A plurality of melon slice inner tube lower pressing mechanisms 1-3 can be set along the circumferential direction of the melon slice rotating support assembly. For example, three melon slice inner tube lower pressing mechanisms 1-3 can be set correspondingly for each melon slice, so that the lower part of the melon slice can be better fitted to the melon slice inner tube, thereby ensuring the cutting and welding assembly accuracy.

[0067] like Figure 1 , 2As shown in Figure 5, according to one embodiment of the present invention, below the top cover inner tube 1-12, the lifting shaft 1-16 is provided with an upper clamping mechanism base 1-14, and the upper clamping mechanism base 1-14 is provided with a melon slice upper clamping mechanism 1-2 along its circumferential direction. The melon slice upper clamping mechanism 1-2 includes an upper clamping drive cylinder 1-2-2 and an upper clamping block 1-2-3, and the upper clamping drive cylinder 1-2-2 is telescopically driven to drive the upper clamping block 1-2-3 toward or away from the top of the melon slice, so as to clamp the top of the melon slice to the upper clamping mechanism base 1-14 or release the melon slice, so as to weld the longitudinal seam of the melon slice.

[0068] The welding equipment of this embodiment can press the melon slices (especially the upper part of the melon slices) to the upper pressing mechanism base through the melon slice upper pressing mechanism, thereby improving the cutting and welding assembly accuracy of the melon slices. The upper pressing block is used to press the end face of the melon slice, and can be an arc-shaped surface that matches the outer side surface of the melon slice. A plurality of melon slice upper pressing mechanisms 1-2 can be set along the circumferential direction of the upper pressing mechanism base 1-14. For example, two melon slice upper pressing mechanisms 1-2 can be set correspondingly for each melon slice, so that the upper part of the melon slice can be better fitted to the upper pressing mechanism base 1-14, thereby ensuring the cutting and welding assembly accuracy.

[0069] According to one embodiment of the present invention, the upper clamping mechanism base 1-14 is rotatably connected to the lifting shaft 1-16, so that the melon slice inner tube can drive the melon slice to rotate around the lifting shaft 1-16 to complete the welding of the melon slice segment.

[0070] like Figure 5 As shown, according to one embodiment of the present invention, in addition to the upper clamping drive cylinder 1-2-2 and the upper clamping block 1-2-3, the melon slice upper clamping mechanism 1-2 also includes an upper clamping mounting base 1-2-1 and an upper clamping lever 1-2-4. The upper clamping mounting base 1-2-1 is arranged on the upper clamping mechanism base 1-14, and in the vertical direction, the upper clamping mounting base 1-2-1 is provided with an upper clamping drive cylinder 1-2-2. The upper clamping lever 1-2-4 is connected to the upper clamping drive cylinder 1-2-2 and the upper clamping block 1-2-3 at both ends, respectively. When the upper clamping drive cylinder 1-2-2 is extended or retracted, the upper clamping block 1-2-3 can be driven toward or away from the top of the melon slice by the upper clamping lever 1-2-4 using the lever principle, so as to clamp the top of the melon slice to the upper clamping mechanism base 1-14 or release the melon slice to weld the longitudinal seam of the melon slice.

[0071] In this embodiment, a plurality of clamping mechanisms 1-2 on melon segments can be provided correspondingly for each melon segment, so that the upper portion of the melon segment can be better clamped to the upper clamping mechanism base 1-14 or the upper clamping mounting base 1-2-1, so as to ensure the assembly accuracy of the melon segment cutting and welding. The upper clamping mounting base 1-2-1 is used to support or fit the supporting end surface of the upper portion of the inner side surface of the melon segment, and can be an arcuate surface or an ellipsoidal surface that matches the upper portion of the inner side surface of the melon segment. The upper clamping mounting base 1-2-1 is used to support or fit the supporting end surface of the upper portion of the inner side surface of the melon segment, and is tangent to the end surface of the melon segment inner tube used to support the inner side surface of the melon segment, so that the connection between the upper clamping mounting base and the melon segment inner tube is matched with the inner side surface of the melon segment, so as to better prevent the melon segment from being squeezed and deformed.

[0072] like Figure 6 As shown, according to one embodiment of the present invention, in addition to the support base 1-6, the melon slice rotation support assembly, the melon slice inner tube 1-1, the top cover inner tube 1-12 and the lifting shaft 1-16, the welding device also includes a melon slice outer pressing component 2. The melon slice outer pressing component 2 is used to press the melon slice to the melon slice inner tube 1-1 from the outer side of the melon slice.

[0073] like Figure 5 As shown, according to one embodiment of the present invention, the upper clamping mechanism base 1-14 is provided with a melon segment outer tire upper clamping mechanism along its circumferential direction. The melon segment outer tire upper clamping mechanism can have the same structure as the melon segment upper clamping mechanism 1-2, and the melon segment outer tire upper clamping mechanism is used to clamp the upper part of the melon segment outer clamping component 2 to the upper clamping mechanism base 1-14 or the upper clamping mounting base 1-2-1, so as to ensure the assembly accuracy of melon segment cutting and welding.

[0074] In this embodiment, for each melon slice, the upper pressing mechanism base 1-14 can be provided with at least one melon slice outer tyre upper pressing mechanism. The melon slice outer tyre upper pressing mechanism can be spaced apart from the melon slice upper pressing mechanism 1-2.

[0075] like Figure 1 and 7 As shown, according to one embodiment of the present invention, in addition to the support base 1-6, the melon slice rotating support assembly, the melon slice inner tube 1-1, the top cover inner tube 1-12 and the lifting shaft 1-16, the welding equipment also includes a top cover pressing outer tube 1-8. The top cover pressing outer tube 1-8 is used to press the top cover to the top cover inner tube 1-12. The top cover pressing outer tube 1-8 is provided with a top cover pressing mechanism 1-8-1 along its circumferential direction. The top cover pressing mechanism 1-8-1 includes a top cover pressing drive cylinder and a top cover pressing block, and the top cover pressing drive cylinder is telescopic to drive the top cover pressing block toward or away from the top cover to press the circumferential side of the top cover to the top cover inner tube 1-12 or release the top cover.

[0076] In this embodiment, a plurality of top cover pressing mechanisms 1-8-1 may be provided along the circumferential direction of the top cover pressing outer tire 1-8. The top cover pressing blocks of the top cover pressing mechanisms 1-8-1 are used to press the end surface of the top cover, and the portion of the top cover pressing blocks used to press the top cover may be an arc shape that matches the top cover.

[0077] According to one embodiment of the present invention, a plurality of (for example, 12) reinforcing plates 1-8-2 are arranged along the circumference of the top cover pressing the outer tire 1-8 to enhance the strength of the top cover pressing the outer tire 1-8.

[0078] like Figure 8 As shown, according to one embodiment of the present invention, the top cover inner tube 1-12 includes an arc-shaped inner tube 1-12-1 adapted to the side surface of the top cover.

[0079] In this embodiment, for example, the arc-shaped inner tube 1-12-1 can be elliptical.

[0080] like Figure 7 , 8 As shown in Figure 29, according to one embodiment of the present invention, the top cover inner tube 1-12 is provided with a positioning pin 1-12-2, and the top cover pressing outer tube 1-8 is provided with a top cover pressing outer tube positioning circular hole 1-8-4 corresponding to the positioning pin 1-12-2. The positioning pin 1-12-2 cooperates with the top cover pressing outer tube positioning circular hole 1-8-4 to position the assembly of the top cover pressing outer tube 1-8 and the top cover inner tube 1-12.

[0081] like Figure 7 and 8 As shown, according to one embodiment of the present invention, the top cover inner tube 1-12 is provided with a positioning guide column 1-12-4, and the top cover pressing outer tube 1-8 is provided with a guide positioning circular hole 1-8-5 corresponding to the positioning guide column 1-12-4.

[0082] like Figure 2 and 9 As shown, according to one embodiment of the present invention, the lifting shaft 1-16 is provided with a melon slice back protection mechanism 1-13 that can rotate around it. The melon slice back protection mechanism 1-13 is provided with an arc groove that matches the melon slice longitudinal seam near the melon slice inner tube 1-1. The arc groove is used to provide protective gas to the melon slice longitudinal seam to protect the melon slice longitudinal seam during welding.

[0083] In this embodiment, the melon slice back protection mechanism 1-13 is rotatable relative to the lifting shaft 1-16, so that the melon slice back protection mechanism 1-13 can be displaced 180° relative to the melon slice inner tube 1-1 or the melon slice, so as to provide protective gas for the welding of each melon slice longitudinal seam.

[0084] According to one embodiment of the present invention, the melon slice back protection mechanism 1-13 includes a melon slice back protection sleeve 1-13-5, and the melon slice back protection sleeve 1-13-5 is rotatably sleeved on the lifting shaft 1-16. The melon slice back protection sleeve 1-13-5 is provided with a melon slice welding back protection bracket 1-13-3. Near the melon slice inner tube 1-1, the melon slice welding back protection bracket 1-13-3 is provided with an arc-shaped back protection groove 1-13-3-1 adapted to the melon slice longitudinal seam. When the melon slice longitudinal seam is welded, the melon slice back protection mechanism 1-13 rotates relative to the lifting shaft 1-16 until the arc-shaped back protection groove 1-13-3-1 rotates to the melon slice longitudinal seam to be welded, and provides welding shielding gas.

[0085] In this embodiment, the arc-shaped back protection groove 1-13-3-1 adapted to the longitudinal seam of the melon slice can be set to be 10mm wide and 20-30mm deep.

[0086] According to one embodiment of the present invention, the melon slice back protection mechanism 1-13 can move along the axial direction of the lifting shaft 1-16, so as to facilitate the melon slice back protection mechanism 1-13 to rotate in the space surrounded by the melon slice inner tube to provide protective gas for the welding of different melon slice longitudinal seams.

[0087] In this embodiment, for example, along the axial direction of the lifting shaft 1-16, the melon slice back protection sleeve 1-13-5 can move relative to the lifting shaft 1-16, so as to realize the melon slice welding back protection bracket 1-13-3 and the arc-shaped back protection groove 1-13-3-1 to move along the axial direction of the lifting shaft 1-16, so as to facilitate the melon slice back protection mechanism 1-13 to rotate in the space surrounded by the melon slice inner tube. Alternatively, along the axial direction of the lifting shaft 1-16, the melon slice back protection sleeve 1-13-5 is relatively fixed to the lifting shaft 1-16, and the melon slice welding back protection bracket 1-13-3 and the melon slice back protection sleeve 1-13-5 can be slidably arranged, so as to realize the melon slice welding back protection bracket 1-13-3 drives the arc-shaped back protection groove 1-13-3-1 to move along the axial direction of the lifting shaft 1-16, so as to facilitate the melon slice back protection mechanism 1-13 to rotate in the space surrounded by the melon slice inner tube.

[0088] According to one embodiment of the present invention, a melon slice back protection sleeve 1-13-5 is provided with a melon slice back protection base 1-13-2, and a melon slice back protection base 1-13-2 is provided with a melon slice welding back protection bracket 1-13-3.

[0089] According to one embodiment of the present invention, the melon slice back protection base 1-13-2 is movable along the axial direction of the melon slice back protection sleeve 1-13-5 to drive the melon slice welded back protection bracket 1-13-3 and the arc-shaped back protection groove 1-13-3-1 to move along the axial direction of the lifting shaft 1-16, so as to facilitate the melon slice back protection mechanism 1-13 to rotate in the space surrounded by the melon slice inner tube.

[0090] According to one embodiment of the present invention, along the radial direction of the melon slice rotating support assembly, the melon slice welding back protection bracket 1-13-3 can be slidably arranged relative to the melon slice back protection base 1-13-2, so that the melon slice welding back protection bracket 1-13-3 and the arc-shaped back protection groove 1-13-3-1 are close to or away from the melon slice inner tube 1-1, which is convenient for the melon slice back protection mechanism 1-13 to rotate in the space surrounded by the melon slice inner tube, or to provide protective gas for the melon slice longitudinal seam welding.

[0091] In this embodiment, for example, along the radial direction of the melon slice rotating support assembly, a linear guide rail is set on the upper end surface of the melon slice back protection base 1-13-2, and a guide groove compatible with the linear guide rail is set on the lower end surface of the melon slice welded back protection bracket 1-13-3, and the guide groove is sleeved on the linear guide rail to realize the sliding of the melon slice welded back protection bracket 1-13-3 relative to the melon slice back protection base 1-13-2.

[0092] According to one embodiment of the present invention, the melon slice back protection mechanism 1-13 also includes a melon slice back protection motor and a melon slice back protection outer cylindrical meshing gear 1-13-1 fixedly sleeved on the lifting shaft 1-16. The melon slice back protection shaft sleeve 1-13-5 is meshed with the melon slice back protection outer cylindrical meshing gear 1-13-1, and the melon slice back protection motor is started to drive the melon slice back protection shaft sleeve 1-13-5 to rotate relative to the melon slice back protection outer cylindrical meshing gear 1-13-1 around the lifting shaft 1-16.

[0093] In this embodiment, for example, the melon slice back protection motor can be arranged on the melon slice back protection sleeve 1-13-5 or the melon slice back protection base 1-13-2.

[0094] According to one embodiment of the present invention, the melon slice back protection sleeve 1-13-5 includes a melon slice back protection sleeve collar and a sleeve external cylindrical gear. The melon slice back protection sleeve collar is sleeved on the lifting shaft 1-16 and can rotate relative to the lifting shaft 1-16 and the melon slice back protection external cylindrical meshing gear 1-13-1. The sleeve external cylindrical gear is arranged on the outer side of the melon slice back protection sleeve collar, and the sleeve external cylindrical gear is meshed with the melon slice back protection external cylindrical meshing gear 1-13-1.

[0095] In this embodiment, the melon slice back protection motor is started, and the external cylindrical gear of the driving shaft sleeve drives the melon slice back protection shaft sleeve to rotate around the lifting shaft 1-16.

[0096] According to one embodiment of the present invention, a melon slice back protection sleeve 1-13-5 is provided with a melon slice cutting back protection bracket 1-13-4, and the melon slice cutting back protection bracket 1-13-4 is spaced apart from the melon slice welding back protection bracket 1-13-3. Near the melon slice inner tube 1-1, the melon slice cutting back protection bracket 1-13-4 is provided with an arc-shaped protection groove 1-13-4-1 adapted to the melon slice longitudinal seam. When the melon slice longitudinal seam is cut, the melon slice back protection mechanism 1-13 rotates relative to the lifting shaft 1-16 until the arc-shaped protection groove 1-13-4-1 rotates to the melon slice longitudinal seam to be welded, so as to prevent the cutting slag from falling into the welding equipment.

[0097] In this embodiment, for example, the melon slice cutting back protection bracket 1-13-4 and the melon slice welding back protection bracket 1-13-3 can be symmetrically or approximately symmetrically arranged. The structures of the melon slice cutting back protection bracket 1-13-4 and the melon slice welding back protection bracket 1-13-3 can be the same or approximately the same. For example, the melon slice back protection sleeve 1-13-5 is provided with two melon slice back protection bases 1-13-2, and the two melon slice back protection bases 1-13-2 are respectively provided with the melon slice welding back protection bracket 1-13-3 and the melon slice cutting back protection bracket 1-13-4. Along the radial direction of the melon slice rotating support assembly, the melon slice welding back protection bracket 1-13-3 and the melon slice cutting back protection bracket 1-13-4 can both be slidably arranged relative to the melon slice back protection base 1-13-2. The arc-shaped protection groove 1-13-4-1 can be set to be 30 mm wide and 30 to 50 mm deep.

[0098] According to one embodiment of the present invention, the distance between the opposite end surfaces of two adjacent upper clamping mounting bases 1-2-1 may be 60-80 mm to avoid components such as arc grooves.

[0099] In this embodiment, the gap between two adjacent upper clamping mounting bases 1-2-1 can provide a clearance space for other equipment. For example, it can provide a travel clearance space for a rolling roller of a rolling equipment, a welding head protection gas nozzle or a spot welding rolling wheel. The opposite end surfaces of two adjacent upper clamping mounting bases 1-2-1 can be parallel to each other.

[0100] like Figure 2 , 10 , 11 and 12, according to one embodiment of the present invention, below the top cover inner tube 1-12, the lifting shaft 1-16 is provided with a top cover welding back protection module 1-9. The top cover welding back protection module 1-9 includes a top cover back protection base 1-9-2 sleeved on the lifting shaft 1-16. Near the top cover annular seam, the top cover back protection base 1-9-2 is provided with a top cover back gas protection module. The top cover back gas protection module is used to provide protective gas to the top cover annular seam to protect the top cover annular seam during welding.

[0101] According to one embodiment of the present invention, the top cover back protection base 1-9-2 is rotatable relative to the lifting shaft 1-16.

[0102] In this embodiment, the rotation angle of the top cover back support base 1-9-2 relative to the lifting axis 1-16 can be greater than 360°.

[0103] According to one embodiment of the present invention, the top cover welding back protection module 1-9 also includes a top cover back protection motor and a top cover back protection outer cylindrical meshing gear 1-9-1 fixedly sleeved on the lifting shaft 1-16. The top cover back protection base 1-9-2 is meshed with the top cover back protection outer cylindrical meshing gear 1-9-1, and the top cover back protection motor is started to drive the top cover back protection base 1-9-2 to drive the top cover back gas protection module to rotate around the lifting shaft 1-16.

[0104] In this embodiment, the top cover back protection motor can be set on the top cover back protection base 1-9-2.

[0105] According to one embodiment of the present invention, the top cover back protection base 1-9-2 includes a top cover back protection base collar and a base external cylindrical gear. The top cover back protection base collar is sleeved on the lifting shaft 1-16 and can rotate relative to the lifting shaft 1-16 and the top cover back protection external cylindrical meshing gear 1-9-1. The base external cylindrical gear is arranged on the outer side of the top cover back protection base collar, and the base external cylindrical gear is meshed with the top cover back protection external cylindrical meshing gear 1-9-1.

[0106] In this embodiment, the top cover back protection motor is started, and the external cylindrical gear of the driving base drives the top cover back protection base sleeve to rotate around the lifting shaft 1-16.

[0107] According to one embodiment of the present invention, the top cover back gas protection module includes a top cover back protection support 1-9-7 arranged on the top cover back protection base 1-9-2. Along the radial direction of the top cover back protection base 1-9-2, the top cover back protection support 1-9-7 is provided with a top cover back protection linear guide 1-9-3 that can slide relative to it. At the end of the top cover back protection linear guide 1-9-3 away from the top cover back protection base 1-9-2, a top cover back liftable shaft 1-9-4 is provided. A top cover back gas protection groove 1-9-6 is provided at the top end of the top cover back liftable shaft 1-9-4, and the top cover back gas protection groove 1-9-6 is used to provide protective gas to the top cover annular seam.

[0108] In this embodiment, the top cover back protection linear guide rail 1-9-3 can be an electrically driven linear guide rail.

[0109] According to one embodiment of the present invention, the lifting shaft 1-9-4 on the back of the top cover can move along the axial direction of the lifting shaft 1-16 relative to the top cover back protection linear guide rail 1-9-3 to drive the top cover back air protection groove 1-9-6 toward or away from the top cover annular seam.

[0110] According to one embodiment of the present invention, a spot welding tension wheel 1-9-5 is arranged at the top of the lifting shaft 1-9-4 on the back of the top cover. The spot welding tension wheel 1-9-5 is used to support the top cover annular seam to prevent deformation when cutting and welding the top cover annular seam.

[0111] In this embodiment, a plurality of spot-welded tension wheels 1-9-5 can be provided at the top of the liftable shaft 1-9-4 on the back of the top cover. For example, a spot-welded tension wheel 1-9-5 is provided at each end of the gas protection groove 1-9-6 on the back of the top cover.

[0112] like Fig.13 and 14 As shown, according to one embodiment of the present invention, the lifting shaft 1-16 includes a bottom lifting shaft 1-16-1 and a middle screw shaft 1-16-2, and the bottom lifting shaft 1-16-1 is a hollow structure. The middle screw shaft 1-16-2 is sleeved in the hollow structure, and the middle screw shaft 1-16-2 can be lifted and lowered relative to the bottom lifting shaft 1-16-1 in the axial direction to drive the top cover inner tube 1-12 to lift and lower.

[0113] According to one embodiment of the present invention, the bottom lifting shaft 1-16-1 includes a bottom lifting rod 1-16-1-3, and the bottom lifting rod 1-16-1-3 is a hollow structure. The middle screw shaft 1-16-2 includes a screw shaft base 1-16-2-1 and a middle lifting rod 1-16-2-2, and the screw shaft base 1-16-2-1 is fixed to the top of the bottom lifting shaft 1-16-1. The middle lifting rod 1-16-2-2 is sleeved on the inner side of the screw shaft base 1-16-2-1 and can slide relative to the screw shaft base 1-16-2-1. The middle lifting rod 1-16-2-2 passes through the screw shaft base 1-16-2-1 and is sleeved in the hollow structure of the bottom lifting rod 1-16-1-3.

[0114] In this embodiment, the hollow structure of the bottom lifting rod 1-16-1-3 can provide a telescopic space for the middle lifting rod 1-16-2-2.

[0115] According to one embodiment of the present invention, in addition to the bottom lifting rod 1-16-1-3, the bottom lifting shaft 1-16-1 also includes a bottom base 1-16-1-1. The bottom lifting rod 1-16-1-3 is arranged on the bottom base 1-16-1-1 to support the bottom lifting rod 1-16-1-3.

[0116] like Fig.14 As shown, according to one embodiment of the present invention, the bottom lifting rod 1-16-1-3 is provided with a bottom mounting seat 1-16-1-4. The bottom mounting seat 1-16-1-4 is sleeved on the bottom lifting rod 1-16-1-3 and can slide relative to the bottom lifting rod 1-16-1-3.

[0117] In this embodiment, the melon slice back protection outer cylindrical meshing gear 1-13-1 of the melon slice back protection mechanism 1-13 can be fixedly mounted on the bottom mounting seat 1-16-1-4, so that the bottom mounting seat 1-16-1-4 drives the melon slice back protection mechanism 1-13 to slide up and down along the axial direction of the lifting shaft 1-16.

[0118] According to one embodiment of the present invention, along the axial direction of the bottom lifting shaft 1-16-1, the bottom lifting shaft 1-16-1 is provided with a bottom lifting shaft linear guide rail 1-16-1-2. The bottom mounting seat 1-16-1-4 is provided with a bottom linear groove adapted to the bottom lifting shaft linear guide rail 1-16-1-2, and the bottom lifting shaft linear guide rail 1-16-1-2 cooperates with the bottom linear groove to realize relative sliding of the bottom mounting seat 1-16-1-4 and the bottom lifting rod 1-16-1-3.

[0119] like Figure 1 and 2 As shown, according to one embodiment of the present invention, the melon slice rotating support assembly includes an inner tube mold rotating mechanism 1-5 and an inner tube mold base 1-4 which are sleeved on a support base 1-6, and the inner tube mold base 1-4 is used to support the melon slice inner tube 1-1 and the melon slice. The inner tube mold rotating mechanism 1-5 can rotate relative to the support base 1-6 to drive the inner tube mold base 1-4 to rotate.

[0120] like Fig.15 As shown, according to one embodiment of the present invention, the inner tube mold rotating mechanism 1-5 includes a motor, which drives the outer gear, and then drives the inner gear meshing with the outer gear to realize the circular rotation of the inner tube mold rotating mechanism 1-5, thereby driving the inner tube mold base 1-4 to realize the rotation of the melon slice inner tube 1-1 and the melon slice.

[0121] According to one embodiment of the present invention, the inner tube mold rotating mechanism 1-5 includes a rotating cylindrical meshing gear 1-5-1 and a rotating mechanism 1-5-2. The rotating cylindrical meshing gear 1-5-1 and the rotating mechanism 1-5-2 are meshed. The rotating cylindrical meshing gear 1-5-1 is connected to the motor, and the motor is started to drive the rotating cylindrical meshing gear 1-5-1 to drive the rotating mechanism 1-5-2 to move. The rotating mechanism 1-5-2 is used to support the inner tube mold base 1-4 and drive the inner tube mold base 1-4 to rotate circumferentially.

[0122] like Fig.16 and 17 As shown, according to one embodiment of the present invention, the inner tube mold base 1-4 is composed of two semicircular rings spliced ​​together.

[0123] In this embodiment, the melon petal segments of the two semicircular rings can be welded first, and then the edges to be welded of the melon petal segments of the two semicircular rings can be cut, and finally the melon petal segments of the two semicircular rings can be spliced ​​together by the two semicircular rings of the inner tire mold base 1-4, and the butt welds can be welded to form a complete melon petal segment. The welding equipment can first weld the melon petal segments of the two semicircular rings, and then splice and weld the melon petal segments of the two semicircular rings to form a complete melon petal segment through the opening and closing of the inner tire mold base 1-4. The welding equipment can reduce the welding difficulty of the melon petal segment and improve the assembly and welding accuracy of the melon petal.

[0124] like Fig.15 , 18 As shown in Figure 30, according to one embodiment of the present invention, the lower end surface of the inner tire mold base 1-4 is provided with an inner tire mold base linear guide module. The upper end surface of the inner tire mold rotating mechanism 1-5 (such as the upper end surface of the rotating mechanism 1-5-2) is provided with an inner tire mold base guide groove module 1-5-3 that cooperates with the inner tire mold base linear guide module, and the inner tire mold base linear guide module cooperates with the inner tire mold base guide groove module 1-5-3 to realize the fixed installation of the inner tire mold base 1-4 and the inner tire mold rotating mechanism 1-5.

[0125] In this embodiment, the inner tube mold base linear guide module can be an electric linear guide.

[0126] According to one embodiment of the present invention, the two semicircular rings of the inner tire mold base 1-4 are respectively provided with an active inner tire mold base linear guide module 1-4-7 and a driven inner tire mold base linear guide module 1-4-8. Among them, the active inner tire mold base linear guide module 1-4-7 is provided in the middle of the semicircular ring of the inner tire mold base 1-4, and a set of driven inner tire mold base linear guide modules 1-4-8 are respectively provided at both ends of the semicircular ring of the inner tire mold base 1-4.

[0127] In this embodiment, the active inner tube mold base linear guide module 1-4-7 can be an electric linear guide. For example, after welding the melon segments of the two semicircular rings respectively, the motor is started, the active inner tube mold base linear guide module 1-4-7 moves linearly along the inner tube mold base guide groove module 1-5-3, and the driven inner tube mold base linear guide module 1-4-8 moves linearly along the corresponding inner tube mold base guide groove module 1-5-3, driving the inner tube mold base 1-4 to drive the melon segments of the two semicircular rings to move toward each other for splicing and docking. Then the welding program is started to weld the splicing welds of the melon segments of the two semicircular rings to form a complete melon segment.

[0128] like Fig.19As shown, according to one embodiment of the present invention, the inner tube mold base 1-4 includes an inner tube mold base bottom plate 1-4-1 and a melon slice mold base 1-4-2. The inner tube mold base bottom plate 1-4-1 is fixedly connected to the inner tube mold rotating mechanism 1-5 (such as the slewing mechanism 1-5-2) and is used to support the melon slice mold base 1-4-2, and the melon slice mold base 1-4-2 is used to support the melon slice. The melon slice mold base 1-4-2 can rotate at a small angle along its circumferential direction relative to the inner tube mold base bottom plate 1-4-1 to drive the melon slice to rotate circumferentially, so as to fine-tune the cutting and welding positions of the melon slices.

[0129] like Fig. 20 and 21 As shown, according to one embodiment of the present invention, an outer cylindrical meshing gear 1-4-5 is provided on the lower end surface of the melon slice mold base 1-4-2, and a bottom plate guide track 1-4-6 meshing with the outer cylindrical meshing gear 1-4-5 is provided on the upper end surface of the bottom plate 1-4-1 of the inner tube mold base.

[0130] In this embodiment, the outer cylindrical meshing gear 1-4-5 of the base can be driven by a motor. The overall shape of the bottom plate guide track 1-4-6 can be arc-shaped. The welding equipment can realize the circumferential rotation of the melon slice mold base 1-4-2 relative to the inner tube mold base bottom plate 1-4-1 through the meshing of the outer cylindrical meshing gear 1-4-5 of the base with the bottom plate guide track 1-4-6. The inner tube mold base 1-4 can be provided with multiple groups of base outer cylindrical meshing gears 1-4-5 and bottom plate guide tracks 1-4-6.

[0131] According to one embodiment of the present invention, the upper end surface of the bottom plate 1-4-1 of the inner tube mold base is provided with a melon slice mold base support rail 1-4-3, and the lower end surface of the melon slice mold base 1-4-2 is provided with two positioning guide cylindrical wheels 1-4-4 that cooperate with the melon slice mold base support rail 1-4-3. The two positioning guide cylindrical wheels 1-4-4 are respectively provided on both sides of the melon slice mold base support rail 1-4-3, and can move relative to each other to provide radial direction limitation for the rotation of the melon slice mold base 1-4-2.

[0132] In this embodiment, the melon slice mold base support rail 1-4-3 can be arc-shaped. The upper end surface of the inner tube mold base bottom plate 1-4-1 can be provided with a plurality of melon slice mold base support rails 1-4-3, and correspondingly, the lower end surface of the melon slice mold base 1-4-2 can be provided with a plurality of positioning guide cylindrical wheels 1-4-4. The melon slice mold base support rail 1-4-3 can also support the melon slice mold base 1-4-2.

[0133] like Figure 7 , 8As shown in Figure 22, according to one embodiment of the present invention, a top cover tire clamping device 1-12-3 is provided in the middle of the top cover inner tube 1-12, and a corresponding clamping device avoidance hole 1-8-3 is provided in the top cover clamping tire 1-8. The top cover tire clamping device 1-12-3 includes a top cover tire clamping drive cylinder 1-12-3-1 and a top cover tire clamping block 1-12-3-2. The top cover tire clamping device 1-12-3 passes through the clamping device avoidance hole 1-8-3, and the top cover tire clamping drive cylinder 1-12-3-1 is extended and retracted, driving the top cover tire clamping block 1-12-3-2 toward or away from the top cover clamping tire 1-8, so as to press the middle of the top cover clamping tire 1-8 to the top cover inner tube 1-12 or release the top cover clamping tire 1-8.

[0134] In this embodiment, the top cover outer tire pressing device 1-12-3 presses the middle part of the top cover outer tire 1-8 to the top cover inner tube 1-12, which can improve the assembly quality, cutting and welding accuracy of the melon segment and the top cover. A plurality of groups of top cover outer tire pressing devices 1-12-3 can be set in the middle part of the top cover inner tube 1-12 along its circumferential direction. The top cover outer tire pressing device 1-12-3 can be in the form of a rotating drive cylinder. That is, the top cover pressing outer tire 1-8 presses the top cover to the top cover inner tube 1-12, at which time the top cover outer tire pressing device 1-12-3 penetrates the pressing device avoidance hole 1-8-3, and the top cover outer tire pressing drive cylinder 1-12-3-1 drives the top cover outer tire pressing block 1-12-3-2 to rotate, and pulls the top cover outer tire pressing block 1-12-3-2 to press the middle part of the top cover pressing outer tire 1-8. The welding equipment can control the shape, dimensional accuracy, etc. of the head, thereby improving the welding accuracy of the head.

[0135] like Fig.23 , 24 As shown in Figures 25 and 25, according to one embodiment of the present invention, the upper clamping mechanism base 1-14 includes an upper clamping mechanism base sleeve 1-14-1, and the upper clamping mechanism base sleeve 1-14-1 is fixedly sleeved on the lifting shaft 1-16. The upper clamping mechanism base sleeve 1-14-1 is provided with a plurality of upper clamping mechanism support bases 1-14-3 along its circumferential direction, and the upper clamping mechanism support bases 1-14-3 are used to place the melon slice upper clamping mechanism 1-2 to clamp the top of the melon slice to the upper clamping mechanism support base 1-14-3. The plurality of upper clamping mechanism support bases 1-14-3 can rotate relative to the upper clamping mechanism base sleeve 1-14-1 along its circumferential direction, so that the melon slice inner tube and the melon slice rotate to weld the melon slice.

[0136] According to one embodiment of the present invention, in addition to the upper clamping mechanism base shaft sleeve 1-14-1, the upper clamping mechanism base 1-14 also includes an upper clamping mechanism base limiting collar 1-14-2. The upper clamping mechanism base limiting collar 1-14-2 is fixedly sleeved on the lower end of the upper clamping mechanism base shaft sleeve 1-14-1, and the diameter of the upper clamping mechanism base limiting collar 1-14-2 is larger than the diameter of the upper clamping mechanism base shaft sleeve 1-14-1, so as to support the lower end of the upper clamping mechanism support base 1-14-3.

[0137] In this embodiment, the lower end of the upper clamping mechanism support base 1-14-3 can rotate along its circumferential direction relative to the upper clamping mechanism base limiting ring 1-14-2.

[0138] like Fig.23 and 26 As shown, according to one embodiment of the present invention, a support base positioning module 1-14-4 corresponding to the upper clamping mechanism support base 1-14-3 is set at the upper end of the upper clamping mechanism base sleeve 1-14-1 along its circumferential direction. The support base positioning module 1-14-4 includes a support base positioning drive cylinder 1-14-4-1 and a support base positioning block 1-14-4-2. Along the circumferential direction of the upper clamping mechanism base sleeve 1-14-1, multiple support base positioning modules 1-14-4 are fixedly connected end to end in sequence to form a ring. The support base positioning block 1-14-4-2 is used to be fixedly connected to the upper clamping mechanism support base 1-14-3. The support base positioning drive cylinder 1-14-4-1 is extended and retracted to control the distance between adjacent support base positioning blocks 1-14-4-2 to adjust the position of the upper clamping mechanism support base 1-14-3 relative to the upper clamping mechanism base sleeve 1-14-1 in the circumferential direction.

[0139] like Fig. 27 and 28 As shown, according to one embodiment of the present invention, the melon segment inner tube 1-1 comprises an inner tube frame 1-1-1 and an inner tube outer mold 1-1-2. The inner tube frame 1-1-1 is used to support the inner tube outer mold 1-1-2, and the inner tube outer mold 1-1-2 is used to support the melon segment from the inner side of the melon segment to control the inner tube profile of the melon segment.

[0140] In this embodiment, the inner tube frame 1-1-1 is arranged on the inner tube mold base 1-4 to rotate circumferentially with the inner tube mold base 1-4 to achieve the cutting and welding of melon slices. A plurality of melon slice inner tubes are combined to form an annular structure adapted to the melon slice segment to control the shape and size accuracy of the welded melon slice segment.

[0141] According to one embodiment of the present invention, the inner tube outer mold 1-1-2 comprises a melon segment bottom cylindrical section 1-1-2-1, a melon segment transition section 1-1-2-3 and a melon segment elliptical upper section 1-1-2-4. The melon segment bottom cylindrical section 1-1-2-1, the melon segment transition section 1-1-2-3 and the melon segment elliptical upper section 1-1-2-4 are sequentially connected up and down to adaptively support and maintain the shape of the melon segment inner profile.

[0142] In this embodiment, the melon segment bottom cylindrical section 1-1-2-1 can be made of metal material. The melon segment bottom cylindrical section 1-1-2-1 can be fixed to the inner tube frame 1-1-1 by screws or welding. The melon segment transition section 1-1-2-3 can be made of non-metallic materials, such as plastic, to reduce the overall weight of the welding equipment. The melon segment transition section 1-1-2-3 can be fixedly connected to the inner tube frame 1-1-1 by means of screws and screw holes. For example, the melon segment transition section 1-1-2-3 and the inner tube frame 1-1-1 are provided with corresponding 4 threaded holes, and the melon segment transition section 1-1-2-3 is fixed to the inner tube frame 1-1-1 by four screws. The melon segment elliptical upper section 1-1-2-4 can be made of metal material. The melon segment elliptical upper section 1-1-2-4 can be fixed to the inner tube frame 1-1-1 by screws or welding.

[0143] According to one embodiment of the present invention, baffles 1-1-2-5 are respectively arranged on two sides of the inner tube outer mold 1-1-2. The baffles 1-1-2-5 are used to protect the inner tube outer mold 1-1-2 when cutting or welding melon slices.

[0144] In this embodiment, the baffle 1-1-2-5 can block the splashes generated when cutting or welding the melon slices. The baffle 1-1-2-5 can be made of copper material. The baffle 1-1-2-5 can be fixedly connected to the inner tube outer mold 1-1-2 by screws.

[0145] According to one embodiment of the present invention, a laser cutting groove 1-1-2-6 is provided in the cylindrical section 1-1-2-1 at the bottom of the melon segment along the circumferential direction of the welding equipment to cut the cutting position of the lower end of the melon segment.

[0146] In this embodiment, the laser cutting groove 1-1-2-6 can be set to be 20 to 40 mm wide and 30 mm deep.

[0147] According to one embodiment of the present invention, at least one positioning pin 1-1-2-2 is provided at the lower end of the inner tube outer mold 1-1-2 (such as the cylindrical section 1-1-2-1 at the bottom of the melon slice). The positioning pin 1-1-2-2 is used to dock with the lower end of the melon slice to position the melon slice.

[0148] The welding equipment of this embodiment can position the melon segments, assist in the cutting and welding of the longitudinal seams of the melon segments, and control the shape and dimensional accuracy of the melon segment segments.

[0149] like Figure 2 As shown, according to one embodiment of the present invention, the welding equipment also includes a limit frame 1-15, and the limit frame 1-15 is fixedly sleeved on the lifting shaft 1-16. The limit frame 1-15 is arranged below the bottom mounting seat 1-16-1-4, and is used to limit the lifting range of the lifting shaft 1-16 and support the bottom mounting seat 1-16-1-4.

[0150] The welding equipment for stainless steel rocket tanks provided by the present invention, and the related drive cylinder equipment (such as the top cover outer tire pressing drive cylinder 1-12-3-1, the support base positioning drive cylinder 1-14-4-1, etc.) can be a pneumatic cylinder, an electric cylinder, etc.

[0151] The above-mentioned embodiments of the present invention can be combined with each other and have corresponding technical effects.

[0152] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A welding device for stainless steel rocket tanks, characterized in that: include: Support base, melon slice rotating support assembly, melon slice inner tube, top cover inner tube and lifting shaft; The melon segment rotating support assembly is arranged on the support base to support the melon segment inner tube and the bottom of the melon segment; the melon segment inner tube has a profile matched with the inner side of the melon segment, supports the inner side of the melon segment, and welds the longitudinal seam of the melon segment; the lifting shaft is arranged in the middle of the support base, the top cover inner tube is fixedly arranged on the lifting shaft, and the top cover inner tube is used to support the top cover, so as to weld the melon segment ring and the top cover.

2. The welding device according to claim 1, characterized in that The melon segment rotating support assembly can rotate around the circumferential direction of the support base, driving the melon segment inner tube and the melon segment to rotate, so as to weld the melon segment into a melon segment ring.

3. The welding device according to claim 1, characterized in that The melon slice rotating support assembly is provided with a melon slice inner tube lower clamping mechanism along its circumferential direction; the melon slice inner tube lower clamping mechanism comprises a lower clamping drive cylinder and a lower clamping block, and the lower clamping drive cylinder is extended and retracted to drive the lower clamping block toward or away from the melon slice to fit the bottom of the melon slice to the melon slice inner tube or release the melon slice.

4. The welding device according to claim 1, characterized in that: Below the inner tube of the top cover, the lifting shaft is provided with an upper clamping mechanism base, and the upper clamping mechanism base is provided with a melon slice upper clamping mechanism along its circumferential direction; the melon slice upper clamping mechanism includes an upper clamping drive cylinder and an upper clamping block, and the upper clamping drive cylinder is telescopically driven to drive the upper clamping block toward or away from the top of the melon slice, so as to clamp the top of the melon slice to the upper clamping mechanism base or release the melon slice, so as to weld the longitudinal seam of the melon slice.

5. The welding device according to claim 1, characterized in that: It also includes a top cover pressing outer tire, which is used to press the top cover to the top cover inner tube; the top cover pressing outer tire is provided with a top cover pressing mechanism along its circumferential direction; the top cover pressing mechanism includes a top cover pressing drive cylinder and a top cover pressing block, and the top cover pressing drive cylinder is extended and retracted to drive the top cover pressing block toward or away from the top cover, so as to press the circumferential side of the top cover to the top cover inner tube or release the top cover.

6. The welding device according to claim 1, characterized in that The lifting shaft is provided with a melon slice back protection mechanism which can rotate around it; near the melon slice inner tube, the melon slice back protection mechanism is provided with an arc groove which is adapted to the melon slice longitudinal seam; the arc groove is used to provide protective gas to the melon slice longitudinal seam so as to protect the melon slice longitudinal seam during welding.

7. The welding device according to claim 1, characterized in that Below the inner tube of the top cover, the lifting shaft is provided with a top cover welding back protection module, and the top cover welding back protection module includes a top cover back protection base sleeved on the lifting shaft; near the top cover annular seam, the top cover back protection base is provided with a top cover back gas protection module; the top cover back gas protection module is used for providing protective gas to the top cover annular seam to protect the top cover annular seam during welding.

8. The welding device according to claim 1, characterized in that The lifting shaft includes a bottom lifting shaft and a middle screw shaft, the bottom lifting shaft is a hollow structure; the middle screw shaft is sleeved in the hollow structure, and the middle screw shaft can be lifted and lowered relative to the bottom lifting shaft along the axial direction to drive the top cover inner tube to lift and lower.

9. The welding device according to claim 2, characterized in that: The melon slice rotating support assembly includes an inner tube mold rotating mechanism and an inner tube mold base which are sleeved on the support base, and the inner tube mold base is used to support the melon slice inner tube and melon slice; the inner tube mold rotating mechanism can rotate relative to the support base to drive the inner tube mold base to rotate.

10. The welding device according to claim 5, characterized in that A top cover outer tire pressing device is arranged in the middle part of the top cover inner tire, and a corresponding pressing device avoidance hole is arranged on the top cover pressing outer tire; the top cover outer tire pressing device comprises a top cover outer tire pressing driving cylinder and a top cover outer tire pressing block; the top cover outer tire pressing device passes through the pressing device avoidance hole, and the top cover outer tire pressing driving cylinder is extended and retracted to drive the top cover outer tire pressing block toward or away from the top cover pressing outer tire, so as to press the middle part of the top cover pressing outer tire to the top cover inner tire or release the top cover pressing outer tire.

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