Welding equipment for stainless steel rocket tanks

Abstract

The present invention provides welding equipment for stainless steel rocket tanks, comprising: a support base, a melon segment rotating support assembly, a melon segment inner tube, a top cover inner tube, and a lifting shaft; the melon segment rotating support assembly is disposed on the support base to support the melon segment inner tube and the melon segment bottom; the melon segment inner tube has a profile that matches the inner surface of the melon segment, supporting the inner surface of the melon segment for welding the longitudinal seam of the melon segment; the lifting shaft is disposed in the middle of the support base, and the top cover inner tube is fixedly mounted on the lifting shaft. The top cover inner tube is used to support the top cover for welding the melon segment ring and the top cover. This welding equipment can improve weld performance and streamline the manufacturing process of elliptical heads.

Description

Technical Field

[0001] The present 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 causes 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 shape retention is high. 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 purpose of the present invention is to overcome the deficiencies of the prior art and 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 segment rotating support assembly, a melon segment inner tube, a top cover inner tube and a 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 that is adapted to the inner side surface of the melon segment, supports the inner side surface 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.

[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 pressing mechanism along its circumferential direction; the melon slice inner tube lower pressing mechanism includes a lower pressing drive cylinder and a lower pressing block, and the lower pressing drive cylinder is extended and retracted to drive the lower pressing 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 pressing mechanism base, and the upper pressing mechanism base is provided with a melon slice upper pressing mechanism along its circumferential direction; the melon slice upper pressing mechanism includes an upper pressing drive cylinder and an upper pressing block, and the upper pressing drive cylinder is extended and retracted to drive the upper pressing block toward or away from the top of the melon slice, so as to press the top of the melon slice to the upper pressing mechanism base or release the melon slice 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 that can rotate around it; near the melon slice inner tube, the melon slice back protection mechanism is provided with an arc groove that is adapted to the melon slice longitudinal seam; the arc groove is used to provide protective gas to the melon slice longitudinal seam 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 to provide 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 in the axial direction relative to the bottom lifting shaft 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 pressing device is provided in the middle part of the top cover inner tube, and a corresponding pressing device avoidance hole is provided on the top cover pressing tire; the top cover tire pressing device includes a top cover tire pressing drive cylinder and a top cover tire pressing block; the top cover tire pressing device passes through the pressing device avoidance hole, and the top cover tire pressing drive cylinder is extended and retracted to drive the top cover tire pressing block toward or away from the top cover pressing tire, so as to press the middle part of the top cover pressing tire to the top cover inner tube or release the top cover pressing 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 segment ring, the weld performance is improved and the manufacturing process of the elliptical head can be simplified.

[0016] It should be understood that the foregoing 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, the accompanying drawings serve 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 This is a disassembled view of a welding device for a stainless steel rocket tank according to one embodiment of the present invention;

[0021] Figure 4 is a perspective view of a lower pressing drive cylinder according to an embodiment of the present invention;

[0022] Figure 5 This is a three-dimensional diagram of a melon slice upper pressing mechanism 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 perspective view of a top cover inner tube according to one embodiment of the present invention;

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

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

[0028] Figure 11 yes Figure 10 Front view of

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

[0030] Figure 13 is a perspective view of a lifting shaft according to an embodiment of the present invention;

[0031] Figure 14 yes Figure 13 Exploded diagram;

[0032] Figure 15 is a perspective view of an inner tube mold rotating mechanism according to an embodiment of the present invention;

[0033] Figure 16 is a perspective view of an inner tube mold base according to one embodiment of the present invention;

[0034] Figure 17 yes Figure 16 's split diagram;

[0035] Figure 18 1. It is a bottom view of a semicircular ring of an inner tube mold base according to one embodiment of the present invention;

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

[0037] Figure 20 1 is a top view of a semicircular ring of an inner tube mold base according to an embodiment of the present invention;

[0038] Figure 21 yes Figure 20 Cross-sectional view of BB;

[0039] Figure 22 is a perspective view of a top cover tire pressing device according to an embodiment of the present invention;

[0040] Figure 23 is a three-dimensional diagram of the base of the upper pressing mechanism according to one embodiment of the present invention;

[0041] Figure 24 is a three-dimensional diagram of the base of the upper pressing mechanism according to one embodiment of the present invention;

[0042] Figure 25 is a cross-sectional view of the base of the upper pressing mechanism according to one embodiment of the present invention;

[0043] Figure 26 is a perspective view of a support base positioning module according to an embodiment of the present invention;

[0044] Figure 27 is a perspective view of an inner tube frame according to an embodiment of the present invention;

[0045] Figure 28 is a perspective view of an inner tube outer mold according to one embodiment of the present invention;

[0046] Figure 29 is a top view of a top cover pressing against a tire according to one embodiment of the present invention;

[0047] Figure 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 rotation 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 Cylindrical section at the bottom of melon slice; 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 mounting 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 Bottom plate of inner tube mold base; 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 tire mold base linear guide module; 1-4-8 Driven inner tire mold base linear guide module; 1-5-1 Rotating cylindrical meshing gear; 1-5-2 Rotating mechanism; 1-5-3 Inner tire mold base guide groove module; 1-8-1 Top cover clamping mechanism; 1-8-2 Reinforcement plate; 1-8-3 Clamping device avoidance hole; 1-8-4 Top cover clamping outer tire 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 air protection groove; 1-9-7 top cover back protection support; 1-12-1 arc-shaped 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-shaped 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 purposes, technical solutions and advantages of the present invention more clear, 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 dimensions of some structural components or areas in the drawings may be enlarged for other structural components or areas to facilitate understanding of the embodiments of the present invention.

[0052] The directional words appearing in the following description refer to the directions shown in the drawings 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 "installed", "connected", and "connected" 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 those skilled in the art, 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", "comprising", "having" or any other variations thereof are intended to cover non-exclusive inclusion, so that a structure or component comprising a series of elements includes not only those elements, but also other mechanical elements not explicitly listed or inherent in the structure or component. In the absence of more limitations, the elements defined by the sentence "comprising..." do not exclude the presence of other identical elements in the article or device comprising the elements.

[0054] Spatially relative terms such as "below," "beneath," "under," "low," "above," "on," "high," and the like are used to facilitate description to explain the positioning of one element relative to a second element, indicating that these terms are intended to encompass different orientations of the device in addition to those shown in the figures. Additionally, for example, "one element is above / below another element" may indicate that the two elements are in direct contact, or may indicate that there are other elements between the two elements. Furthermore, terms such as "first," "second," and the like are also used to describe various elements, regions, portions, and the like, and do not specifically refer to an order or sequence, and should not be considered limiting. Similar terms are used throughout the description to indicate similar elements.

[0055] In the following description of the present invention, in certain scenarios, only the terms "rocket", "carrier rocket", "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 speaking, the rocket of the present invention includes carrier rockets or space launch vehicles used to carry satellites, spacecraft or other probes, as well as various types of missiles, rockets and other weapons used to carry military payloads, as well as similar products that can send payloads into the air. When interpreting the above specific terms, those skilled in the art should not limit the rocket to only one of the carrier rockets or missiles based on the specific words used to describe the scenario, 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 This is a disassembled view of a welding device for a stainless steel rocket tank according to one embodiment of the present invention; Figure 4 is a perspective view of a lower pressing drive cylinder according to an embodiment of the present invention; Figure 5 This is a three-dimensional diagram of a melon slice upper pressing mechanism 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 perspective view of a top cover inner tube according to one embodiment of the present invention; Figure 9 is a three-dimensional diagram of a melon wedge back protection mechanism according to an embodiment of the present invention; Figure 10 This is a three-dimensional diagram of a top cover welding back protection module according to one embodiment of the present invention; Figure 11 yes Figure 10 Front view of Figure 12 yes Figure 11 The cross-sectional view in the AA direction; Figure 13 is a perspective view of a lifting shaft according to an embodiment of the present invention; Figure 14 yes Figure 13 Exploded diagram; Figure 15 is a perspective view of an inner tube mold rotating mechanism according to an embodiment of the present invention; Figure 16 is a perspective view of an inner tube mold base according to one embodiment of the present invention; Figure 17 yes Figure 16 's split diagram; Figure 181. It is a bottom view of a semicircular ring of an inner tube mold base according to one embodiment of the present invention; Figure 19 is a three-dimensional view of a semicircular ring of an inner tube mold base according to one embodiment of the present invention; Figure 20 1 is a top view of a semicircular ring of an inner tube mold base according to an embodiment of the present invention; Figure 21 yes Figure 20 Cross-sectional view of BB; Figure 22 is a perspective view of a top cover tire pressing device according to an embodiment of the present invention; Figure 23 is a three-dimensional diagram of the base of the upper pressing mechanism according to one embodiment of the present invention; Figure 24 is a three-dimensional diagram of the base of the upper pressing mechanism according to one embodiment of the present invention; Figure 25 is a cross-sectional view of the base of the upper pressing mechanism according to one embodiment of the present invention; Figure 26 is a perspective view of a support base positioning module according to an embodiment of the present invention; Figure 27 is a perspective view of an inner tube frame according to an embodiment of the present invention;

[0058] Figure 28 is a perspective view of an inner tube outer mold according to one embodiment of the present invention; Figure 29 is a top view of a top cover pressing against a tire according to one embodiment of the present invention; Figure 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. 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 longitudinal seams of the melon petals to manufacture melon petal rings or melon petal segments, then cuts the butt joint edges of the top cover and the melon petal segments, and finally butts the top cover with the melon petal rings to complete the welding of the butt joint 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 streamline 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 arcuate surface that matches the inner surface of the melon segment. Multiple melon segment inner tubes can be provided along the circumference of the melon segment rotation support assembly, with each segment inner tube corresponding to each melon segment. For example, a melon segment ring made by welding 16 melon segments can be provided with 16 melon segment inner tubes.

[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 segment inner tube lower pressing mechanism 1-3 is provided along the circumferential direction of the melon segment rotating support assembly. The melon segment inner tube lower pressing mechanism 1-3 includes a lower pressing drive cylinder 1-3-1 and a lower pressing block 1-3-2. The lower pressing drive cylinder 1-3-1 is extended and retracted to drive the lower pressing block 1-3-2 toward or away from the melon segment, thereby fitting the bottom of the melon segment to the melon segment inner tube 1-1 or releasing the melon segment.

[0066] The welding equipment of this embodiment can make the melon slice (especially the lower part of the melon slice) 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 slice. 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. The melon slice rotating support assembly can be provided with multiple melon slice inner tube lower pressing mechanisms 1-3 along its circumferential direction. For example, for each melon slice, three melon slice inner tube lower pressing mechanisms 1-3 can be provided accordingly, so that the lower part of the melon slice can be better fitted to the melon slice inner tube, ensuring the assembly accuracy of cutting and welding.

[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 pressing mechanism base 1-14, and the upper pressing mechanism base 1-14 is provided with a melon slice upper pressing mechanism 1-2 along its circumferential direction. The melon slice upper pressing mechanism 1-2 includes an upper pressing drive cylinder 1-2-2 and an upper pressing block 1-2-3. The upper pressing drive cylinder 1-2-2 is telescopically driven to drive the upper pressing block 1-2-3 toward or away from the top of the melon slice, thereby pressing the top of the melon slice against the upper pressing mechanism base 1-14 or releasing the melon slice 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 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 assembly accuracy of cutting and welding.

[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 two ends of the upper clamping lever 1-2-4 are respectively connected to the upper clamping drive cylinder 1-2-2 and the upper clamping block 1-2-3. 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 melon slice upper pressing mechanisms 1-2 can be provided for each melon slice, so that the upper part of the melon slice can be better pressed against the upper pressing mechanism base 1-14 or the upper pressing mounting base 1-2-1, thereby ensuring the assembly accuracy of the melon slice cutting and welding. The upper pressing mounting base 1-2-1 is used to support or fit the supporting end surface of the upper part of the inner side surface of the melon slice, and can be an arc-shaped surface or an ellipsoidal surface that matches the upper part of the inner side surface of the melon slice. The upper pressing mounting base 1-2-1 is used to support or fit the supporting end surface of the upper part of the inner side surface of the melon slice, and is tangent to the end surface of the melon slice inner tube used to support the inner side surface of the melon slice, so that the connection between the upper pressing mounting base and the melon slice inner tube is matched with the inner side surface of the melon slice, so as to better prevent the melon slice 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 segment rotation support assembly, the melon segment inner tube 1-1, the top cover inner tube 1-12, and the lifting shaft 1-16, the welding device also includes a melon segment outer pressing component 2. The melon segment outer pressing component 2 is used to press the melon segment against the melon segment inner tube 1-1 from the outer side of the melon segment.

[0073] like Figure 5 As shown, according to one embodiment of the present invention, the upper pressing mechanism base 1-14 is provided with a melon segment outer tire upper pressing mechanism along its circumferential direction. The melon segment outer tire upper pressing mechanism can have the same structure as the melon segment upper pressing mechanism 1-2. The melon segment outer tire upper pressing mechanism is used to press the upper portion of the melon segment outer pressing component 2 against the upper pressing mechanism base 1-14 or the upper pressing mounting base 1-2-1 to ensure assembly accuracy during 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 tire upper pressing mechanism. The melon slice outer tire 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 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 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 extended and retracted 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, the top cover pressing outer tire 1-8 can be provided with a plurality of top cover pressing mechanisms 1-8-1 along its circumferential direction. 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 can be arc-shaped to match the top cover.

[0077] According to one embodiment of the present invention, the top cover pressing tire 1-8 is provided with a plurality of (for example, 12) reinforcing plates 1-8-2 along its circumference to reinforce the strength of the top cover pressing 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, a melon slice back protection mechanism 1-13 is provided, which is rotatable about a lifting shaft 1-16. Near the melon slice inner tube 1-1, the melon slice back protection mechanism 1-13 is provided with an arcuate groove adapted to the longitudinal seam of the melon slice. The arcuate groove is used to provide shielding gas to the longitudinal seam of the melon slice, thereby protecting the seam during welding.

[0083] In this embodiment, the melon slice back protection mechanism 1-13 can be rotatably arranged relative to the lifting shaft 1-16, so that the melon slice back protection mechanism 1-13 can be displaced 180 degrees relative to the melon slice inner tube 1-1 or the melon slice, thereby providing 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, which is rotatably mounted 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 arcuate back protection groove 1-13-3-1 that is adapted to the longitudinal seam of the melon slice. When welding the longitudinal seam of the melon slice, the melon slice back protection mechanism 1-13 rotates relative to the lifting shaft 1-16 until the arcuate back protection groove 1-13-3-1 rotates to the longitudinal seam of the melon slice to be welded, and welding shielding gas is provided.

[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 10 mm wide and 20 to 30 mm 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 that the melon slice back protection mechanism 1-13 can 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 that the melon slice welded back protection bracket 1-13-3 and the arc-shaped back protection groove 1-13-3-1 can move along the axial direction of the lifting shaft 1-16, thereby facilitating the rotation of the melon slice back protection mechanism 1-13 within 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 welded back protection bracket 1-13-3 and the melon slice back protection sleeve 1-13-5 can be slidably arranged, so that the melon slice welded 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, thereby facilitating the rotation of the melon slice back protection mechanism 1-13 within the space surrounded by the melon slice inner tube.

[0088] According to one embodiment of the present invention, the melon slice back protection sleeve 1-13-5 is provided with a melon slice back protection base 1-13-2, and the 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 rotation of the melon slice back protection mechanism 1-13 in the space surrounded by the melon slice inner tube.

[0090] According to one embodiment of the present invention, 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 along the radial direction of the melon slice rotation support assembly, 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 facilitates the melon slice back protection mechanism 1-13 to rotate in the space surrounded by the melon slice inner tube, or 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 face 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 face of the melon slice welded back protection bracket 1-13-3, and the guide groove is sleeved on the linear guide rail to enable the melon slice welded back protection bracket 1-13-3 to slide 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 further includes a melon slice back protection motor and a melon slice back protection outer cylindrical meshing gear 1-13-1 fixedly mounted on the lifting shaft 1-16. A melon slice back protection sleeve 1-13-5 meshes with the melon slice back protection outer cylindrical meshing gear 1-13-1. When the melon slice back protection motor is activated, it drives the melon slice back protection 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 set 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 an external cylindrical gear. The melon slice back protection sleeve collar is mounted on the lifting shaft 1-16 and is rotatable relative to the lifting shaft 1-16 and the melon slice back protection external cylindrical meshing gear 1-13-1. The external cylindrical gear is mounted on the outer side of the melon slice back protection sleeve collar and meshes 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, which 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 protective groove 1-13-4-1 that aligns with the longitudinal seam of the melon slice. When the longitudinal seam of the melon slice is cut, the melon slice back protection mechanism 1-13 rotates relative to the lifting shaft 1-16 until the arc-shaped protective groove 1-13-4-1 rotates to the longitudinal seam of the melon slice to be welded, preventing 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 rotation 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 a width of 30 mm and a groove depth of 30 to 50 mm.

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

[0099] In this embodiment, the gap between two adjacent upper compression mounting bases 1-2-1 can provide clearance for other equipment. For example, it can provide clearance for rolling rollers, welding head shielding nozzles, or spot welding rolling wheels. The opposing end surfaces of the two adjacent upper compression mounting bases 1-2-1 can be parallel to each other.

[0100] like Figure 2 、 10 As shown in Figures 11 and 12, according to one embodiment of the present invention, a top cover welding back protection module 1-9 is provided below the top cover inner tube 1-12 on the lifting shaft 1-16. The top cover welding back protection module 1-9 includes a top cover back protection base 1-9-2 that is sleeved on the lifting shaft 1-16. A top cover back gas protection module is provided on the top cover back protection base 1-9-2 near the top cover annular seam. The top cover back gas protection module is used to provide shielding 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 shaft 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 mounted 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. When the top cover back protection motor is activated, it drives the top cover back protection base 1-9-2 to rotate the top cover back air protection module 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 an external cylindrical gear. The top cover back protection base collar is mounted on the lifting shaft 1-16 and is rotatable relative to the lifting shaft 1-16 and the top cover back protection external cylindrical meshing gear 1-9-1. The external cylindrical gear is mounted on the outer side of the top cover back protection base collar and meshes 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-welded tensioning wheel 1-9-5 is provided at the top of the liftable shaft 1-9-4 on the back of the top cover. The spot-welded tensioning 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 tensioning pulleys 1-9-5 may be provided at the top of the liftable shaft 1-9-4 on the back of the top cover. For example, a spot-welded tensioning pulley 1-9-5 may be provided at each end of the gas protection groove 1-9-6 on the back of the top cover.

[0112] like Figure 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. 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 can be raised 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 rise and fall.

[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. 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 further 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 Figure 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 installed 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, a bottom lifting shaft linear guide 1-16-1-2 is provided on the bottom lifting shaft 1-16-1 along the axial direction of the bottom lifting shaft 1-16-1. A bottom linear groove is provided on the bottom mounting seat 1-16-1-4 to match the bottom lifting shaft linear guide 1-16-1-2. The bottom lifting shaft linear guide 1-16-1-2 cooperates with the bottom linear groove to achieve relative sliding between 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 rotation support assembly includes an inner tube mold rotation mechanism 1-5 and an inner tube mold base 1-4 mounted on a support base 1-6. 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 rotation 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 Figure 15 As shown, according to one embodiment of the present invention, the inner tube mold rotation mechanism 1-5 includes a motor, which drives the outer gear through the motor, and then drives the inner gear meshing with it through the outer gear to realize the circular rotation of the inner tube mold rotation mechanism 1-5, thereby realizing the rotation of the melon slice inner tube 1-1 and the melon slice by driving the inner tube mold base 1-4.

[0121] According to one embodiment of the present invention, the inner tube mold rotation 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 a motor. When the motor is activated, it drives the rotating cylindrical meshing gear 1-5-1, which in turn drives the rotating mechanism 1-5-2. The rotating mechanism 1-5-2 supports the inner tube mold base 1-4 and drives the inner tube mold base 1-4 in circumferential rotation.

[0122] like Figure 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 two semicircular ring melon petal segments can be cut. Finally, the two semicircular rings of the inner tire mold base 1-4 are butted together to form the melon petal segments of the two semicircular rings, and the butt welds are 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 weld the melon petal segments of the two semicircular rings together to form a complete melon petal segment by butting the two semicircular rings together through the inner tire mold base 1-4. The welding equipment can reduce the difficulty of welding the melon petal segments and improve the assembly and welding accuracy of the melon petals.

[0124] like Figure 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 rotary 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. The inner tire mold base linear guide module cooperates with the inner tire mold base guide groove module 1-5-3 to achieve 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 passive inner tire mold base linear guide module 1-4-8. Specifically, 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 passive 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 tire mold base linear guide module 1-4-7 can be an electric linear guide. For example, after welding the melon segments of the two semi-circular rings, the motor is activated, causing the active inner tire mold base linear guide module 1-4-7 to move linearly along the inner tire mold base guide groove module 1-5-3. The driven inner tire mold base linear guide module 1-4-8 then moves linearly along the corresponding inner tire mold base guide groove module 1-5-3, driving the inner tire mold base 1-4 to move the two semi-circular melon segments toward each other for joint connection. The welding process is then initiated to weld the joint welds of the two semi-circular melon segments, forming a complete melon segment.

[0128] like Figure 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 rotary 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 slice.

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

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

[0131] According to one embodiment of the present invention, the upper end surface of the inner tube mold base bottom plate 1-4-1 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 arranged on either side of the melon slice mold base support rail 1-4-3 and can move relative to each other to provide radial positioning limit for the rotation of the melon slice mold base 1-4-2.

[0132] In this embodiment, the melon slice mold base support rails 1-4-3 can be arc-shaped. Multiple melon slice mold base support rails 1-4-3 can be provided on the upper end surface of the inner tube mold base plate 1-4-1. Correspondingly, multiple positioning guide cylindrical wheels 1-4-4 can be provided on the lower end surface of the melon slice mold base 1-4-2. The melon slice mold base support rails 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 pressing device 1-12-3 is provided in the middle of the top cover inner tube 1-12, and a corresponding pressing device avoidance hole 1-8-3 is provided in the top cover pressing outer tube 1-8. The top cover tire pressing device 1-12-3 includes a top cover tire pressing drive cylinder 1-12-3-1 and a top cover tire pressing block 1-12-3-2. The top cover tire pressing device 1-12-3 passes through the pressing device avoidance hole 1-8-3, and the top cover tire pressing drive cylinder 1-12-3-1 is extended and retracted, driving the top cover tire pressing block 1-12-3-2 toward or away from the top cover pressing outer tube 1-8, so as to press the middle of the top cover pressing outer tube 1-8 to the top cover inner tube 1-12 or release the top cover pressing outer tube 1-8.

[0134] In this embodiment, the top cover outer tire pressing device 1-12-3 presses the middle portion of the top cover outer tire 1-8 against the top cover inner tire 1-12, thereby improving the assembly quality, cutting, and welding accuracy of the melon segment and the top cover. Multiple sets of top cover outer tire pressing devices 1-12-3 can be provided along the circumferential direction of the middle portion of the top cover inner tire 1-12. The top cover outer tire pressing device 1-12-3 can be in the form of a rotary drive cylinder. That is, the top cover outer tire 1-8 presses the top cover against the top cover inner tire 1-12. At this 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, pulling the top cover outer tire pressing block 1-12-3-2 to press the middle portion of the top cover pressing outer tire 1-8. The welding equipment can control the shape and dimensional accuracy of the head, thereby improving the welding accuracy of the head.

[0135] like Figure 23 、 24 As shown in Figure 25, according to one embodiment of the present invention, the upper pressing mechanism base 1-14 includes an upper pressing mechanism base sleeve 1-14-1, and the upper pressing mechanism base sleeve 1-14-1 is fixedly sleeved on the lifting shaft 1-16. The upper pressing mechanism base sleeve 1-14-1 is provided with a plurality of upper pressing mechanism support bases 1-14-3 along its circumferential direction. The upper pressing mechanism support bases 1-14-3 are used to place the melon slice upper pressing mechanism 1-2 to press the top of the melon slice to the upper pressing mechanism support base 1-14-3. The plurality of upper pressing mechanism support bases 1-14-3 can rotate relative to the upper pressing 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 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 sleeve 1-14-1. The diameter of the upper clamping mechanism base limiting collar 1-14-2 is larger than the diameter of the upper clamping mechanism base 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 portion 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 Figure 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 on the upper end portion 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 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 Figure 27 and 28 As shown, according to one embodiment of the present invention, a melon segment inner tube 1-1 includes 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 to control the inner tube profile of the melon segment.

[0140] In this embodiment, the inner tube frame 1-1-1 is mounted on the inner tube mold base 1-4 and rotates circumferentially with the inner tube mold base 1-4 to achieve the cutting and welding of melon segments. Multiple melon segment inner tubes are combined to form an annular structure that matches the melon segment to control the shape and dimensional accuracy of the welded melon segment.

[0141] According to one embodiment of the present invention, the inner tube outer mold 1-1-2 includes a melon segment bottom cylindrical section 1-1-2-1, a melon segment transition section 1-1-2-3, and an oval upper segment 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 oval upper segment 1-1-2-4 are sequentially connected vertically to adaptively support and maintain the shape of the melon segment inner surface.

[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 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 four corresponding 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 provided on both 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 spatter generated when cutting or welding the melon slices. The baffle 1-1-2-5 can be made of copper. 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 on the cylindrical section 1-1-2-1 at the bottom of the melon slice along the circumferential direction of the welding equipment to cut the cutting position of the lower end of the melon slice.

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

[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 (e.g., 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 cutting and welding the longitudinal seams of the melon segments, and control the shape and dimensional accuracy of the melon segments.

[0149] like Figure 2 As shown, according to one embodiment of the present invention, the welding equipment further includes a limit frame 1-15, which is fixedly mounted on the lifting shaft 1-16. The limit frame 1-15 is arranged below the bottom mounting seat 1-16-1-4 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 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 replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A welding device for stainless steel rocket tanks, characterized in that: include: Support base, melon segment rotation support assembly, melon segment inner tube, top cover inner tube and lifting shaft; The melon segment rotation 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 adapted to the inner side of the melon segment, supporting the inner side of the melon segment to weld 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 to weld the melon segment ring and the top cover; The lifting shaft is provided with a melon segment back protection mechanism that can rotate around it; near the melon segment inner tube, the melon segment back protection mechanism is provided with an arc-shaped groove that is adapted to the melon segment longitudinal seam; the arc-shaped groove is used to provide shielding gas to the melon segment longitudinal seam to protect the melon segment longitudinal seam during welding; 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 to provide protective gas to the top cover annular seam to protect the top cover annular seam during welding.

2. The welding equipment 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 equipment according to claim 1, characterized in that The melon slice rotating support assembly is provided with a melon slice inner tube lower pressing mechanism along its circumferential direction; the melon slice inner tube lower pressing mechanism includes a lower pressing drive cylinder and a lower pressing block, and the lower pressing drive cylinder is extended and retracted to drive the lower pressing 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 equipment according to claim 1, characterized in that Below the inner tube of the top cover, the lifting shaft is provided with an upper pressing mechanism base, and the upper pressing mechanism base is provided with a melon slice upper pressing mechanism along its circumferential direction; the melon slice upper pressing mechanism includes an upper pressing drive cylinder and an upper pressing block, and the upper pressing drive cylinder is extended and retracted to drive the upper pressing block toward or away from the top of the melon slice, so as to press the top of the melon slice to the upper pressing mechanism base or release the melon slice to weld the longitudinal seam of the melon slice.

5. The welding equipment 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 to press the circumferential side of the top cover to the top cover inner tube or release the top cover.

6. The welding equipment according to claim 1, characterized in that 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.

7. The welding equipment 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. 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.

8. The welding equipment according to claim 5, characterized in that A top cover outer tire pressing device is provided in the middle of the top cover inner tire, and a corresponding pressing device avoidance hole is provided on the top cover pressing outer tire; the top cover outer tire pressing device includes a top cover outer tire pressing drive 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 drive 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 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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