Welding equipment for stainless steel rocket storage tank

Abstract

The utility model 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 bottoms of the scalloped segments, and the scalloped segment inner tube is used for supporting the inner side faces of the scalloped segments so as to weld longitudinal seams of the scalloped segments; 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. According to the welding equipment, the welding seam performance can be improved, and the manufacturing process of the elliptical head can be simplified.

Description

Technical Field

[0001] The utility model relates to the field of rocket storage tanks, and particularly to a welding device for stainless steel rocket storage tanks. Background Technique

[0002] In the existing manufacturing process of large-diameter stainless steel rocket storage tanks, there are several major difficulties in manufacturing stainless steel headstock petals. One is that secondary clamping is difficult to control: the petal itself is a stainless steel plate with an elliptical arc surface shape, the plate is thin, and the rigidity is low. Secondary clamping is likely to cause the gap of the assembly weld to change due to deformation, resulting in a reduction in welding accuracy. The second is that high requirements are imposed on the dimensional accuracy of a single petal and the dimensional accuracy of the butt welding assembly of the petals: the size of the stainless steel headstock is large, while the petal plate is very thin, so high requirements are imposed on the shape retention of the petal. The third is that the manufacturing process is complex. Therefore, the welding of the petal and the headstock can usually only be carried out by means of on-line cutting and on-line welding.

[0003] To streamline the manufacturing process of rocket storage tanks and improve welding accuracy, it is particularly important to design a welding device for stainless steel rocket storage tanks. Content of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a welding device for stainless steel rocket storage tanks.

[0005] The utility model provides a welding device for stainless steel rocket storage tanks, including: a support base, a petal rotary support assembly, a petal inner tire, a top cover inner tire and a lifting shaft; the petal rotary support assembly is arranged on the support base to support the petal inner tire and the bottom of the petal, and the petal inner tire is used to support the inner side surface of the petal for welding the longitudinal seam of the petal; the lifting shaft is arranged in the middle of the support base, and the top cover inner tire is fixedly arranged on the lifting shaft, and the top cover inner tire is used to support the top cover for welding the petal ring and the top cover.

[0006] According to an embodiment of the utility model, the petal rotary support assembly can rotate around the circumferential direction of the support base to drive the petal inner tire and the petal to rotate so as to weld the petal into a petal ring.

[0007] According to an embodiment of the utility model, a lower pressing mechanism for the petal inner tire is arranged along the circumferential direction of the petal rotary support assembly; the lower pressing mechanism for the petal inner tire includes a lower pressing driving cylinder and a lower pressing block, and the telescopic movement of the lower pressing driving cylinder drives the lower pressing block to face or move away from the petal so as to fit the bottom of the petal to the petal inner tire or release the petal.

[0008] According to an embodiment of the present utility model, below the inner tire of the top cover, an upper pressing mechanism base is provided on the lifting shaft, and a segmented upper pressing mechanism is arranged along the circumferential direction of the upper pressing mechanism base; the segmented upper pressing mechanism includes an upper pressing driving cylinder and an upper pressing block, and the telescopic movement of the upper pressing driving cylinder drives the upper pressing block to face or move away from the top of the segment, so as to press the top of the segment against the upper pressing mechanism base or release the segment, in order to weld the longitudinal seam of the segment.

[0009] According to an embodiment of the present utility model, it further includes an outer tire for pressing the top cover, and the outer tire for pressing the top cover is used to press the top cover against the inner tire of the top cover; a top cover pressing mechanism is arranged along the circumferential direction of the outer tire for pressing the top cover; the top cover pressing mechanism includes a top cover pressing driving cylinder and a top cover pressing block, and the telescopic movement of the top cover pressing driving cylinder drives the top cover pressing block to face or move away from the top cover, so as to press the circumferential side edge of the top cover against the inner tire of the top cover or release the top cover.

[0010] According to an embodiment of the present utility model, a protection mechanism for the back of the segment that can rotate around the lifting shaft is provided on the lifting shaft; near the inner tire of the segment, an arc-shaped groove adapted to the longitudinal seam of the segment is provided on the protection mechanism for the back of the segment; the arc-shaped groove is used to provide protective gas to the longitudinal seam of the segment to protect the longitudinal seam of the segment during welding.

[0011] According to an embodiment of the present utility model, below the inner tire of the top cover, a back protection module for welding the top cover is provided on the lifting shaft, and the back protection module for welding the top cover includes a back protection base of the top cover sleeved on the lifting shaft; near the circumferential seam of the top cover, a back air protection module of the top cover is provided on the back protection base of the top cover; the back air protection module of the top cover is used to provide protective gas to the circumferential seam of the top cover to protect the circumferential seam of the top cover during welding.

[0012] According to an embodiment of the present utility model, the lifting shaft includes a bottom lifting shaft and a middle screw shaft, and the bottom lifting shaft is of a hollow structure; the middle screw shaft is sleeved in the hollow structure, and the middle screw shaft can move up and down relative to the bottom lifting shaft along the axial direction to drive the inner tire of the top cover to move up and down.

[0013] According to an embodiment of the present utility model, the segment rotation support assembly includes an inner tire mold rotation mechanism and an inner tire mold base sleeved on the support base, and the inner tire mold base is used to support the inner tire of the segment and the segment; the inner tire mold rotation mechanism can rotate relative to the support base to drive the inner tire mold base to rotate.

[0014] According to an embodiment of the present utility model, 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 in the top cover pressing outer tire; the top cover outer tire pressing device includes a top cover outer tire pressing driving cylinder and a top cover outer tire pressing block; the top cover outer tire pressing device penetrates through the pressing device avoidance hole, and the top cover outer tire pressing driving cylinder expands and contracts to drive the top cover outer tire pressing block to face towards or away from the top cover pressing outer tire, so as to press the middle part of the top cover pressing outer tire against the top cover inner tire or release the top cover pressing outer tire.

[0015] The welding equipment for a stainless - steel rocket storage tank according to the present utility model improves the weld performance by first cutting or welding the top cover and the segment of the melon - shaped part, and then butt - welding the top cover and the melon - shaped ring, and can streamline the manufacturing process of the elliptical head.

[0016] It should be understood that the above general description and the following specific embodiments are only exemplary and explanatory, and cannot limit the scope claimed by the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following drawings are part of the specification of the present utility model, which illustrate the exemplary embodiments of the present utility model. The attached drawings, together with the description of the specification, are used to explain the principle of the utility model.

[0018] Figure 1 is a three - dimensional view of the welding equipment for a stainless - steel rocket storage tank according to an embodiment of the present utility model;

[0019] Figure 2 is a three - dimensional view of the welding equipment for a stainless - steel rocket storage tank according to an embodiment of the present utility model;

[0020] Figure 3 is a disassembly view of the welding equipment for a stainless - steel rocket storage tank according to an embodiment of the present utility model;

[0021] Figure 4 is a three - dimensional view of the lower pressing driving cylinder according to an embodiment of the present utility model;

[0022] Figure 5 is a three - dimensional view of the upper pressing mechanism for the segment of the melon - shaped part according to an embodiment of the present utility model;

[0023] Figure 6 is a three - dimensional view of the welding equipment for a stainless - steel rocket storage tank according to an embodiment of the present utility model;

[0024] Figure 7 is a three - dimensional view of the top cover pressing outer tire according to an embodiment of the present utility model;

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

[0026] Figure 9 is a perspective view of the back protection mechanism of the melon petals in an embodiment of the present utility model;

[0027] Figure 10 is a perspective view of the top cover welding back protection module in an embodiment of the present utility model;

[0028] Figure 11 is Figure 10 the front view of;

[0029] Figure 12 is Figure 11 the sectional view in the A-A direction of;

[0030] Figure 13 is a perspective view of the lifting shaft in an embodiment of the present utility model;

[0031] Figure 14 is Figure 13 the exploded view of;

[0032] Figure 15 is a perspective view of the inner tube mold rotating mechanism in an embodiment of the present utility model;

[0033] Figure 16 is a perspective view of the inner tube mold base in an embodiment of the present utility model;

[0034] Figure 17 is Figure 16 the split view of;

[0035] Figure 18 is the bottom view of the semi-ring of the inner tube mold base in an embodiment of the present utility model;

[0036] Figure 19 is a perspective view of the semi-ring of the inner tube mold base in an embodiment of the present utility model;

[0037] Figure 20 is the top view of the semi-ring of the inner tube mold base in an embodiment of the present utility model;

[0038] Figure 21 is Figure 20 the sectional view in the B-B direction of;

[0039] Figure 22 is a perspective view of the top cover outer tube pressing device in an embodiment of the present utility model;

[0040] Figure 23 is a perspective view of the base of the upper pressing mechanism in an embodiment of the present utility model;

[0041] Figure 24 is a perspective view of the base of the upper pressing mechanism in an embodiment of the present utility model;

[0042] Figure 25 It is a sectional view of the base of the upper pressing mechanism in an embodiment of the present utility model;

[0043] Figure 26 It is a perspective view of the support base positioning module in an embodiment of the present utility model;

[0044] Figure 27 It is a perspective view of the inner tube skeleton in an embodiment of the present utility model;

[0045] Figure 28 It is a perspective view of the outer mold of the inner tube in an embodiment of the present utility model;

[0046] Figure 29 It is a top view of the top cover pressing the outer tire in an embodiment of the present utility model

[0047] Figure 30 It is a front view of the semi - ring of the inner tube mold base in an embodiment of the present utility model.

[0048] Explanation of reference numerals:

[0049] 1 - 1 segmented inner tube; 1 - 2 segmented upper pressing mechanism; 1 - 3 segmented lower pressing mechanism for the inner tube; 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 the outer tire; 1 - 9 top cover welding back protection module; 1 - 12 top cover inner tube; 1 - 13 segmented back protection mechanism; 1 - 14 base of the upper pressing mechanism; 1 - 15 limit 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 the segment; 1-1-2-2 Positioning pin; 1-1-2-3 Transition section of the segment; 1-1-2-4 Oval upper section of the segment; 1-1-2-5 Baffle; 1-1-2-6 Laser cutting groove; 1-2-1 Upper pressing installation base; 1-2-2 Upper pressing drive cylinder; 1-2-3 Upper pressing block; 1-2-4 Upper pressing lever; 1-3-1 Lower pressing drive cylinder; 1-3-2 Lower pressing block; 1-4-1 Bottom plate of the inner tube mold base; 1-4-2 Segment mold base; 1-4-3 Segment mold base support guide rail; 1-4-4 Positioning and guiding cylindrical wheel; 1-4-5 Outer cylindrical meshing gear of the base; 1-4-6 Bottom plate guiding track; 1-4-7 Active inner tube mold base linear guide rail module; 1-4-8 Driven inner tube mold base linear guide rail module; 1-5-1 Rotating cylindrical meshing gear; 1-5-2 Rotary mechanism; 1-5-3 Inner tube mold base guide groove module; 1-8-1 Top cover pressing mechanism; 1-8-2 Reinforcement plate; 1-8-3 Avoidance hole for the pressing device; 1-8-4 Outer tire positioning round hole for top cover pressing; 1-8-5 Guiding and positioning round hole; 1-9-1 Outer cylindrical meshing gear for top cover back protection; 1-9-2 Top cover back protection base; 1-9-3 Top cover back protection linear guide rail; 1-9-4 Liftable shaft on the back of the top cover; 1-9-5 Spot welding pressing wheel; 1-9-6 Gas protection groove on the back of the top cover; 1-9-7 Top cover back protection support; 1-12-1 Arc-shaped inner tube; 1-12-2 Positioning pin; 1-12-3 Outer tire pressing device for the top cover; 1-12-4 Positioning and guiding column; 1-12-3-1 Outer tire pressing drive cylinder for the top cover; 1-12-3-2 Outer tire pressing block for the top cover; 1-13-1 Outer cylindrical meshing gear for segment back protection; 1-13-2 Segment back protection base; 1-13-3 Segment welding back protection bracket; 1-13-4 Segment cutting back protection bracket; 1-13-5 Segment back protection bushing; 1-13-3-1 Arc-shaped back protection groove; 1-13-4-1 Arc-shaped protection groove; 1-14-1 Shaft sleeve for the upper pressing mechanism base; 1-14-2 Limit collar for the upper pressing mechanism base; 1-14-3 Support base for the upper pressing mechanism; 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 Linear guide rail for the bottom lifting shaft; 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- Outer pressing components for the segment. Detailed implementation mode

[0051] The features and exemplary embodiments of various aspects of the present utility model will be described in detail below. To make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model 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 utility model and are used to exemplarily illustrate the principle of the present utility model, and are not configured to limit the present utility model. Additionally, the components in the drawings are not necessarily drawn to scale. For example, the sizes of some components or regions in the drawings may be enlarged for other components or regions to assist in understanding the embodiments of the present utility model.

[0052] The orientation terms appearing in the following description are all the directions shown in the figures and do not limit the specific structure of the embodiments of the present utility model. In the description of the present utility model, it should be noted that unless otherwise specified, the terms "mounted", "connected", and "coupled" 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 of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0053] In addition, the terms "comprising", "including", "having" or any other variants thereof are intended to cover non-exclusive inclusion, such that a series of elements, components or assemblies includes not only those elements but also other components that are not explicitly listed or are inherent to the components. Without further limitation, the elements defined by the statement "including..." do not exclude the existence of additional identical elements in the articles or devices including the elements.

[0054] Spatial relationship terms such as "below", "beneath", "under", "lower", "above", "on", "upper", etc. are used to facilitate description and to explain the positioning of one element relative to a second element. These terms are intended to cover different orientations of the device, except for those orientations different from those shown in the figures. Additionally, for example, "one element is on / under another element" can mean that the two elements are in direct contact or that there are other elements between the two elements. Furthermore, terms such as "first", "second", etc. are also used to describe each element, region, part, etc., and do not particularly refer to the order or sequence, and should not be regarded as limiting. Similar terms represent similar elements throughout the description.

[0055] In the process of describing the present utility model hereinafter, in certain scenario descriptions, only "rocket", "launch vehicle", "spacecraft", "space launch vehicle" or "missile" may be used. This is only for convenience of description, and its connotation is not limited to the specific words used. Generally, the rocket of the present utility model includes both launch vehicles or space launch vehicles for carrying satellites, spaceships or other detectors, and various weapons such as missiles and rockets for carrying military payloads, as well as similar products that can send payloads into the air. When those skilled in the art interpret the above specific words, the rocket should not be limited to only one of the launch vehicle or missile according to the specific words used in the description scenario, so as to narrow the protection scope of the present utility model.

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

[0057] Figure 1 is a perspective view of a welding device for a stainless steel rocket tank of an embodiment of the present utility model; Figure 2 is a perspective view of a welding device for a stainless steel rocket tank of an embodiment of the present utility model; Figure 3 is an exploded view of a welding device for a stainless steel rocket tank of an embodiment of the present utility model; Figure 4 is a perspective view of a lower pressing drive cylinder of an embodiment of the present utility model; Figure 5 is a perspective view of a segment upper pressing mechanism of an embodiment of the present utility model; Figure 6 is a perspective view of a welding device for a stainless steel rocket tank of an embodiment of the present utility model; Figure 7 is a perspective view of a top cover pressing outer tire of an embodiment of the present utility model;

[0058] Figure 8 is a perspective view of a top cover inner tire of an embodiment of the present utility model; Figure 9 is a perspective view of a segment back protection mechanism of an embodiment of the present utility model; Figure 10 is a perspective view of a top cover welding back protection module of an embodiment of the present utility model; Figure 11 is Figure 10 the front view of Figure 12 is Figure 11 the sectional view in the A-A direction of Figure 13 is a perspective view of a lifting shaft of an embodiment of the present utility model; Figure 14 is Figure 13 the exploded view of Figure 15 is a perspective view of an inner tire mold rotating mechanism of an embodiment of the present utility model; Figure 16 is a perspective view of an inner tire mold base of an embodiment of the present utility model;Figure 17 is Figure 16 the exploded view of Figure 18 the bottom view of the semi - circular ring of the inner tube mold base in an embodiment of the present utility model; Figure 19 the perspective view of the semi - circular ring of the inner tube mold base in an embodiment of the present utility model; Figure 20 the top view of the semi - circular ring of the inner tube mold base in an embodiment of the present utility model; Figure 21 is Figure 20 the sectional view taken along B - B of Figure 22 the perspective view of the top cover outer tube pressing device in an embodiment of the present utility model; Figure 23 the perspective view of the base of the upper pressing mechanism in an embodiment of the present utility model; Figure 24 the perspective view of the base of the upper pressing mechanism in an embodiment of the present utility model; Figure 25 the sectional view of the base of the upper pressing mechanism in an embodiment of the present utility model; Figure 26 the perspective view of the support base positioning module in an embodiment of the present utility model; Figure 27 the perspective view of the inner tube skeleton in an embodiment of the present utility model; Figure 28 the perspective view of the outer mold of the inner tube in an embodiment of the present utility model; Figure 29 the top view of the top cover pressing the outer tube in an embodiment of the present utility model; Figure 30 the front view of the semi - circular ring of the inner tube mold base in an embodiment of the present utility model.

[0059] As shown in Figure 1 , 2 and 3, the present utility model provides a welding device for a stainless - steel rocket storage tank, including: a support base 1 - 6, a segment rotating support assembly, a segment inner tube 1 - 1, a top cover inner tube 1 - 12, and a lifting shaft 1 - 16. The segment rotating support assembly is arranged on the support base 1 - 6 to support the segment inner tube 1 - 1 and the segment bottom. The segment inner tube 1 - 1 is used to support the inner side of the segment to weld the segment longitudinal seam. The lifting shaft 1 - 16 is arranged in the middle of the support base 1 - 6, and the top cover inner tube 1 - 12 is fixedly arranged on the lifting shaft 1 - 16. The top cover inner tube 1 - 12 is used to support the top cover to weld the segment 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 slice inner tube lower pressing mechanism 1-3 is provided along the circumferential direction of the melon slice rotating support assembly. The melon slice 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 slice, thereby fitting the bottom of the melon slice to the melon slice inner tube 1-1 or releasing the melon slice.

[0066] The welding equipment of this embodiment can make the segment (especially the lower part of the segment) fit to the segment inner tire through the lower pressing mechanism of the segment inner tire, improving the cutting and welding assembly accuracy of the segment. The lower pressing block is used to press the end face of the segment and can be an arc surface adapted to the outer side surface of the segment. Along the circumferential direction of the segment rotating support assembly, multiple lower pressing mechanisms 1-3 of the segment inner tire can be arranged. For example, for each segment, three lower pressing mechanisms 1-3 of the segment inner tire can be correspondingly arranged to make the lower part of the segment better fit to the segment inner tire and ensure the cutting and welding assembly accuracy.

[0067] As Figure 1 , 2 and as shown in 5, according to an embodiment of the present invention, below the top cover inner tire 1-12, an upper pressing mechanism base 1-14 is arranged on the lifting shaft 1-16. Along the circumferential direction of the upper pressing mechanism base 1-14, an upper pressing mechanism 1-2 of the segment is arranged. The upper pressing mechanism 1-2 of the segment includes an upper pressing driving cylinder 1-2-2 and an upper pressing block 1-2-3. The telescopic movement of the upper pressing driving cylinder 1-2-2 drives the upper pressing block 1-2-3 to face or move away from the top of the segment, so as to press the top of the segment onto the upper pressing mechanism base 1-14 or release the segment to weld the longitudinal seam of the segment.

[0068] The welding equipment of this embodiment can make the segment (especially the upper part of the segment) press onto the upper pressing mechanism base through the upper pressing mechanism of the segment, improving the cutting and welding assembly accuracy of the segment. The upper pressing block is used to press the end face of the segment and can be an arc surface adapted to the outer side surface of the segment. Along the circumferential direction of the upper pressing mechanism base 1-14, multiple upper pressing mechanisms 1-2 of the segment can be arranged. For example, for each segment, two upper pressing mechanisms 1-2 of the segment can be correspondingly arranged to make the upper part of the segment better fit to the upper pressing mechanism base 1-14 and ensure the cutting and welding assembly accuracy.

[0069] According to an embodiment of the present invention, the upper pressing mechanism base 1-14 is rotatably connected to the lifting shaft 1-16, so that the segment inner tire can drive the segment to rotate around the lifting shaft 1-16 to complete the welding of the segment section.

[0070] As Figure 5As shown, according to an embodiment of the present utility model, in addition to the upper pressing drive cylinder 1-2-2 and the upper pressing block 1-2-3, the petal upper pressing mechanism 1-2 further includes an upper pressing mounting base 1-2-1 and an upper pressing lever 1-2-4. The upper pressing mounting base 1-2-1 is disposed on the upper pressing mechanism base 1-14. In the vertical direction, the upper pressing drive cylinder 1-2-2 is disposed on the upper pressing mounting base 1-2-1. The two ends of the upper pressing lever 1-2-4 are respectively connected to the upper pressing drive cylinder 1-2-2 and the upper pressing block 1-2-3. When the upper pressing drive cylinder 1-2-2 expands and contracts, it can drive the upper pressing block 1-2-3 to face or move away from the top of the petal through the upper pressing lever 1-2-4 by using the lever principle, so as to press the top of the petal onto the upper pressing mechanism base 1-14 or release the petal, for welding the longitudinal seam of the petal.

[0071] In this embodiment, for each petal, multiple petal upper pressing mechanisms 1-2 can be correspondingly provided to better press the upper part of the petal onto the upper pressing mechanism base 1-14 or the upper pressing mounting base 1-2-1, ensuring the assembly accuracy of petal cutting and welding. The upper pressing mounting base 1-2-1 is used to support or fit the supporting end face of the upper part of the inner side of the petal, and can be an arc surface or an ellipsoidal surface adapted to the upper part of the inner side of the petal. The upper pressing mounting base 1-2-1 is used to support or fit the supporting end face of the upper part of the inner side of the petal, and is tangent to the end face of the petal inner tire for supporting the inner side of the petal, so that the connection between the upper pressing mounting base and the petal inner tire is adapted to the inner side of the petal, to better prevent the petal from being squeezed and deformed.

[0072] As Figure 6 shown, according to an embodiment of the present utility model, in addition to the support base 1-6, the petal rotation support assembly, the petal inner tire 1-1, the top cover inner tire 1-12 and the lifting shaft 1-16, the welding equipment further includes a petal outer pressing component 2. The petal outer pressing component 2 is used to press the petal onto the petal inner tire 1-1 from the outer side of the petal.

[0073] As Figure 5 shown, according to an embodiment of the present utility model, the upper pressing mechanism base 1-14 is provided with a petal outer tire upper pressing mechanism along its circumferential direction. The petal outer tire upper pressing mechanism can have the same structure as the petal upper pressing mechanism 1-2, and the petal outer tire upper pressing mechanism is used to press the upper part of the petal outer pressing component 2 onto the upper pressing mechanism base 1-14 or the upper pressing mounting base 1-2-1, ensuring the assembly accuracy of petal cutting and welding.

[0074] In this embodiment, for each petal, at least one petal outer tire upper pressing mechanism can be provided on the upper pressing mechanism base 1-14. The petal outer tire upper pressing mechanism can be arranged at intervals with the petal upper pressing mechanism 1-2.

[0075] As Figure 1 and7 As shown, according to an embodiment of the present utility model, in addition to the support base 1-6, the segmented rotating support assembly, the segmented inner tire 1-1, the top cover inner tire 1-12, and the lifting shaft 1-16, the welding equipment further includes a top cover pressing outer tire 1-8. The top cover pressing outer tire 1-8 is used to press the top cover onto the top cover inner tire 1-12. A top cover pressing mechanism 1-8-1 is provided along the circumferential direction of the top cover pressing outer tire 1-8. The top cover pressing mechanism 1-8-1 includes a top cover pressing drive cylinder and a top cover pressing block. The telescopic movement of the top cover pressing drive cylinder drives the top cover pressing block to face towards or away from the top cover, so as to press the circumferential side edge of the top cover onto the top cover inner tire 1-12 or release the top cover.

[0076] In this embodiment, a plurality of top cover pressing mechanisms 1-8-1 can be provided along the circumferential direction of the top cover pressing outer tire 1-8. The top cover pressing block of the top cover pressing mechanism 1-8-1 is used to press the end face of the top cover, and the part of the top cover pressing block used to press the top cover can be an arc shape adapted to the top cover.

[0077] According to an embodiment of the present utility model, the top cover pressing outer tire 1-8 is provided with a plurality of (for example, 12) reinforcing plates 1-8-2 along its circumferential direction to enhance the strength of the top cover pressing outer tire 1-8.

[0078] As Figure 8 shown, according to an embodiment of the present utility model, the top cover inner tire 1-12 includes an arc-shaped inner tire 1-12-1 adapted to the side face of the top cover.

[0079] In this embodiment, for example, the arc-shaped inner tire 1-12-1 can be an ellipse.

[0080] As Figure 7 、 8 and 29 shown, according to an embodiment of the present utility model, the top cover inner tire 1-12 is provided with positioning pin studs 1-12-2, and the top cover pressing outer tire 1-8 is provided with top cover pressing outer tire positioning round holes 1-8-4 corresponding to the positioning pin studs 1-12-2. The positioning pin studs 1-12-2 cooperate with the top cover pressing outer tire positioning round holes 1-8-4 to position the assembly of the top cover pressing outer tire 1-8 and the top cover inner tire 1-12.

[0081] As Figure 7 and 8 shown, according to an embodiment of the present utility model, the top cover inner tire 1-12 is provided with positioning guide columns 1-12-4, and the top cover pressing outer tire 1-8 is provided with guide positioning round holes 1-8-5 corresponding to the positioning guide columns 1-12-4.

[0082] As Figure 2 and 9As 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 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 arcuate back protection groove 1-13-3-1 rotates to the melon slice longitudinal seam 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 be moved 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 an embodiment of the present utility model, a melon petal back protection bushing 1-13-5 is provided with a melon petal back protection base 1-13-2, and the melon petal back protection base 1-13-2 is provided with a melon petal welding back protection bracket 1-13-3.

[0089] According to an embodiment of the present utility model, the melon petal back protection base 1-13-2 is movable along the axial direction of the melon petal back protection bushing 1-13-5 to drive the melon petal welding back protection bracket 1-13-3 and the arc back protection groove 1-13-3-1 to move along the axial direction of the lifting shaft 1-16, facilitating the rotation of the melon petal back protection mechanism 1-13 within the space enclosed by the melon petal inner tire.

[0090] According to an embodiment of the present utility model, along the radial direction of the melon petal rotation support assembly, the melon petal welding back protection bracket 1-13-3 is slidably arranged relative to the melon petal back protection base 1-13-2, enabling the melon petal welding back protection bracket 1-13-3 and the arc back protection groove 1-13-3-1 to approach or move away from the melon petal inner tire 1-1, facilitating the rotation of the melon petal back protection mechanism 1-13 within the space enclosed by the melon petal inner tire or providing shielding gas for the longitudinal seam welding of the melon petal.

[0091] In this embodiment, for example, along the radial direction of the melon petal rotation support assembly, a linear guide rail is provided on the upper end surface of the melon petal back protection base 1-13-2, and a guide groove adapted to the linear guide rail is provided on the lower end surface of the melon petal welding back protection bracket 1-13-3. The guide groove is sleeved on the linear guide rail to achieve the sliding of the melon petal welding back protection bracket 1-13-3 relative to the melon petal back protection base 1-13-2.

[0092] According to an embodiment of the present utility model, the melon petal back protection mechanism 1-13 further includes a melon petal back protection motor and a melon petal back protection outer cylindrical meshing gear 1-13-1 fixedly sleeved on the lifting shaft 1-16. The melon petal back protection bushing 1-13-5 is meshed with the melon petal back protection outer cylindrical meshing gear 1-13-1. When the melon petal back protection motor is started, it drives the melon petal back protection bushing 1-13-5 to rotate around the lifting shaft 1-16 relative to the melon petal back protection outer cylindrical meshing gear 1-13-1.

[0093] In this embodiment, for example, the melon petal back protection motor can be arranged on the melon petal back protection bushing 1-13-5 or the melon petal 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 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 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 pressing and mounting bases 1-2-1 can provide an avoidance space for other devices. For example, it can provide a traveling avoidance space for the rolling wheels of the rolling equipment, the shielding nozzles of the welding heads, or the spot welding and rolling wheels. The opposite end faces of two adjacent upper pressing and mounting bases 1-2-1 can be parallel to each other.

[0100] As Figure 2 , 10 , 11, and 12 show that according to an embodiment of the present invention, below the inner tube 1-12 of the top cover, a top cover welding back protection module 1-9 is provided 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 sleeved on the lifting shaft 1-16. Near the top cover circumferential seam, a top cover back surface gas protection module is provided on the top cover back protection base 1-9-2. The top cover back surface gas protection module is used to provide shielding gas to the top cover circumferential seam to protect the top cover circumferential seam during welding.

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

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

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

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

[0105] According to an 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 of the base. 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 outer cylindrical meshing gear 1-9-1 of the top cover back protection. The external cylindrical gear of the base is arranged on the outer side surface of the top cover back protection base collar, and the external cylindrical gear of the base is meshed with the outer cylindrical meshing gear 1-9-1 of the top cover back protection.

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

[0107] According to an embodiment of the present utility model, the gas shield module on the back of the top cover includes a top cover back shield support 1-9-7 provided on the top cover back shield base 1-9-2. Along the radial direction of the top cover back shield base 1-9-2, a top cover back shield linear guide 1-9-3 is provided on which the top cover back shield support 1-9-7 can slide relative to it. At one end of the top cover back shield linear guide 1-9-3 away from the top cover back shield base 1-9-2, a top cover back liftable shaft 1-9-4 is provided. At the top of the top cover back liftable shaft 1-9-4, a top cover back gas shield groove 1-9-6 is provided, and the top cover back gas shield groove 1-9-6 is used to supply shielding gas to the top cover circumferential seam.

[0108] In this embodiment, the top cover back shield linear guide 1-9-3 can be an electric drive linear guide.

[0109] According to an embodiment of the present utility model, the top cover back liftable shaft 1-9-4 can move relative to the top cover back shield linear guide 1-9-3 along the axial direction of the liftable shaft 1-16, so as to drive the top cover back gas shield groove 1-9-6 to face or move away from the top cover circumferential seam.

[0110] According to an embodiment of the present utility model, a spot welding tightening wheel 1-9-5 is provided at the top of the top cover back liftable shaft 1-9-4. When the spot welding tightening wheel 1-9-5 is used for cutting and welding the top cover circumferential seam, it supports the top cover circumferential seam to prevent it from deforming.

[0111] In this embodiment, multiple spot welding tightening wheels 1-9-5 can be provided at the top of the top cover back liftable shaft 1-9-4. For example, one spot welding tightening wheel 1-9-5 is provided at each end of the top cover back gas shield groove 1-9-6.

[0112] As Figure 13 and 14 shown, according to an embodiment of the present utility model, the liftable shaft 1-16 includes a bottom liftable shaft 1-16-1 and a middle screw shaft 1-16-2. The bottom liftable shaft 1-16-1 is of 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 lift relative to the bottom liftable shaft 1-16-1 along the axial direction to drive the top cover inner tube 1-12 to lift.

[0113] According to an embodiment of the present utility model, 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 of 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 end of the bottom lifting shaft 1-16-1. The middle lifting rod 1-16-2-2 is sleeved inside 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 penetrates 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 an embodiment of the present utility model, 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 disposed on the bottom base 1-16-1-1 to support the bottom lifting rod 1-16-1-3.

[0116] As Figure 14 shown, according to an embodiment of the present utility model, 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 outer cylindrical meshing gear 1-13-1 of the petal 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 petal back protection mechanism 1-13 to slide up and down along the axial direction of the lifting shaft 1-16.

[0118] According to an embodiment of the present utility model, 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 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 1-16-1-2. The bottom lifting shaft linear guide 1-16-1-2 cooperates with the bottom linear groove to realize the relative sliding of the bottom mounting seat 1-16-1-4 and the bottom lifting rod 1-16-1-3.

[0119] As Figure 1 and 2As shown, according to an embodiment of the present utility model, the melon-petal rotation support assembly includes an inner tire mold rotation mechanism 1-5 sleeved on a support base 1-6 and an inner tire mold base 1-4. The inner tire mold base 1-4 is used to support the melon-petal inner tire 1-1 and the melon petals. The inner tire mold rotation mechanism 1-5 can rotate relative to the support base 1-6 to drive the inner tire mold base 1-4 to rotate.

[0120] As Figure 15 shown, according to an embodiment of the present utility model, the inner tire mold rotation mechanism 1-5 includes a motor. The motor drives an external gear, and then the external gear drives an internal gear meshing with it to achieve the circumferential rotation of the inner tire mold rotation mechanism 1-5, thereby realizing the rotation of the melon-petal inner tire 1-1 and the melon petals by driving the inner tire mold base 1-4.

[0121] According to an embodiment of the present utility model, the inner tire mold rotation mechanism 1-5 includes a rotating cylindrical meshing gear 1-5-1 and a rotary mechanism 1-5-2. The rotating cylindrical meshing gear 1-5-1 and the rotary mechanism 1-5-2 are meshed. The rotating cylindrical meshing gear 1-5-1 is connected to a motor. When the motor starts, it drives the rotating cylindrical meshing gear 1-5-1 to drive the rotary mechanism 1-5-2 to move. The rotary mechanism 1-5-2 is used to support the inner tire mold base 1-4 and drive the inner tire mold base 1-4 to rotate circumferentially.

[0122] As Figure 16 and 17 shown, according to an embodiment of the present utility model, the inner tire mold base 1-4 is composed of two semi-circular rings spliced together.

[0123] In this embodiment, the melon-petal segments of the two semi-circular rings can be welded first, then the edges to be welded of the two semi-circular ring melon-petal segments are cut, and finally, through the butt joint of the two semi-circular rings of the inner tire mold base 1-4, the melon-petal segments of the two semi-circular rings are assembled and the butt weld is welded to form a complete melon-petal segment. This welding equipment can first weld the melon-petal segments of the two semi-circular rings through the opening and closing butt joint of the two semi-circular rings of the inner tire mold base 1-4, and then assemble and weld the melon-petal segments of the two semi-circular rings to form a complete melon-petal segment. This welding equipment can reduce the welding difficulty of the melon-petal segments and improve the assembly and welding accuracy of the melon petals.

[0124] As Figure 15 、 18 and 30 shown, according to an embodiment of the present utility model, an inner tire mold base linear guide module is provided on the lower end surface of the inner tire mold base 1-4. An inner tire mold base guide groove module 1-5-3 is provided on the upper end surface of the inner tire mold rotation mechanism 1-5 (such as the upper end surface of the rotary mechanism 1-5-2) that is matched with the inner tire mold base linear guide module. The inner tire mold base linear guide module and the inner tire mold base guide groove module 1-5-3 cooperate to realize the fixed installation of the inner tire mold base 1-4 and the inner tire mold rotation 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 19 As 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 outer cylindrical meshing gear 1-4-5 of the base can be driven by a motor. The overall shape of the bottom plate guiding track 1-4-6 can be arc-shaped. Through the meshing of the outer cylindrical meshing gear 1-4-5 of the base with the bottom plate guiding track 1-4-6, this welding device can achieve the circumferential rotation of the base 1-4-2 of the segment die relative to the bottom plate 1-4-1 of the inner tube die base. Multiple groups of outer cylindrical meshing gears 1-4-5 and bottom plate guiding tracks 1-4-6 can be provided on the inner tube die base 1-4.

[0131] According to an embodiment of the present invention, on the upper end surface of the bottom plate 1-4-1 of the inner tube die base, a segment die base support guide rail 1-4-3 is provided, and on the lower end surface of the segment die base 1-4-2, two positioning guide cylindrical wheels 1-4-4 that cooperate with the segment die base support guide rail 1-4-3 are provided. The two positioning guide cylindrical wheels 1-4-4 are respectively arranged on both sides of the segment die base support guide rail 1-4-3 and can move relatively to provide radial limit for the rotation of the segment die base 1-4-2.

[0132] In this embodiment, the segment die base support guide rail 1-4-3 can be arc-shaped. Multiple segment die base support guide rails 1-4-3 can be provided on the upper end surface of the bottom plate 1-4-1 of the inner tube die base. Correspondingly, multiple positioning guide cylindrical wheels 1-4-4 can be provided on the lower end surface of the segment die base 1-4-2. The segment die base support guide rail 1-4-3 can also support the segment die base 1-4-2.

[0133] As Figure 7 、 8 As shown in FIGS. 22, according to an embodiment of the present invention, in the middle of the inner tube 1-12 of the top cover, a top cover outer tire pressing device 1-12-3 is provided, and a corresponding pressing device avoidance hole 1-8-3 is provided on the top cover pressing outer tire 1-8. The top cover outer tire pressing device 1-12-3 includes a top cover outer tire pressing drive cylinder 1-12-3-1 and a top cover outer tire pressing block 1-12-3-2. The top cover outer tire pressing device 1-12-3 penetrates through the pressing device avoidance hole 1-8-3. When the top cover outer tire pressing drive cylinder 1-12-3-1 expands and contracts, it drives the top cover outer tire pressing block 1-12-3-2 to face or move away from the top cover pressing outer tire 1-8, so as to press the middle part of the top cover pressing outer tire 1-8 against the inner tube 1-12 of the top cover or release the top cover pressing outer tire 1-8.

[0134] In this embodiment, by pressing the middle part of the top cover outer tire 1-8 of the top cover pressing device 1-12-3 against the inner tire 1-12 of the top cover, the assembly quality, cutting and welding accuracy of the segment and the top cover can be improved. Multiple groups of top cover outer tire pressing devices 1-12-3 can be arranged along the circumferential direction of the middle part of the inner tire 1-12 of the top cover. The top cover outer tire pressing device 1-12-3 can adopt the form of a rotary drive cylinder. That is, the top cover pressing outer tire 1-8 presses the top cover against the inner tire 1-12 of the top cover. At this time, the top cover outer tire pressing device 1-12-3 penetrates through 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. This welding equipment can control the shape, dimensional accuracy, etc. of the head, and improve the welding accuracy of the head.

[0135] As Figure 23 , 24 As shown in FIGS. 24, 25 and 25, according to an embodiment of the present invention, the upper pressing mechanism base 1-14 includes an upper pressing mechanism base bushing 1-14-1, and the upper pressing mechanism base bushing 1-14-1 is fixedly sleeved on the lifting shaft 1-16. A plurality of upper pressing mechanism support bases 1-14-3 are arranged along the circumferential direction of the upper pressing mechanism base bushing 1-14-1, and the upper pressing mechanism support bases 1-14-3 are used to place the segment upper pressing mechanism 1-2 to press the top of the segment against the upper pressing mechanism support bases 1-14-3. The plurality of upper pressing mechanism support bases 1-14-3 can rotate relative to the upper pressing mechanism base bushing 1-14-1 along its circumferential direction, so that the inner tire and the segment of the segment rotate to weld the segment.

[0136] According to an embodiment of the present invention, in addition to the upper pressing mechanism base bushing 1-14-1, the upper pressing mechanism base 1-14 further includes an upper pressing mechanism base limiting collar 1-14-2. The upper pressing mechanism base limiting collar 1-14-2 is fixedly sleeved on the lower end of the upper pressing mechanism base bushing 1-14-1, and the diameter of the upper pressing mechanism base limiting collar 1-14-2 is larger than the diameter of the upper pressing mechanism base bushing 1-14-1 to support the lower end of the upper pressing mechanism support base 1-14-3.

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

[0138] As Figure 23 and 26As 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 cylindrical section 1-1-2-1 at the bottom of the melon-shaped segment can be made of metal material. The cylindrical section 1-1-2-1 at the bottom of the melon-shaped segment can be fixed to the inner tube framework 1-1-1 by screws or welding. The transition section 1-1-2-3 of the melon-shaped segment can be made of non-metal material, such as plastic, etc., to reduce the overall weight of the welding equipment. The transition section 1-1-2-3 of the melon-shaped segment can be fixedly connected to the inner tube framework 1-1-1 by means of screws and screw holes. For example, the transition section 1-1-2-3 of the melon-shaped segment and the inner tube framework 1-1-1 are provided with 4 corresponding threaded holes, and the transition section 1-1-2-3 of the melon-shaped segment is fixed to the inner tube framework 1-1-1 by four screws. The upper elliptical section 1-1-2-4 of the melon-shaped segment can be made of metal material. The upper elliptical section 1-1-2-4 of the melon-shaped segment can be fixed to the inner tube framework 1-1-1 by screws or welding.

[0143] According to an 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 the melon-shaped segments.

[0144] In this embodiment, the baffles 1-1-2-5 can block the flying objects generated when cutting or welding the melon-shaped segments. The baffles 1-1-2-5 can be made of copper material. The baffles 1-1-2-5 and the inner tube outer mold 1-1-2 can be fixedly connected by screws.

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

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

[0147] According to an embodiment of the present invention, at least one positioning pin 1-1-2-2 is arranged 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-shaped segment). The positioning pin 1-1-2-2 is used to dock with the lower end of the melon-shaped segment to position the melon-shaped segment.

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

[0149] Such as Figure 2As shown, according to an embodiment of the present utility model, the welding equipment further 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 disposed below the bottom mounting base 1-16-1-4, and is used to limit the lifting range of the lifting shaft 1-16 and support the bottom mounting base 1-16-1-4.

[0150] For the welding equipment for stainless steel rocket storage tanks provided by the present utility model, related driving cylinder devices (such as the top cover outer tire pressing driving cylinder 1-12-3-1, the support base positioning driving cylinder 1-14-4-1, etc.) can be pneumatic cylinders, electric cylinders, etc.

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

[0152] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. Welding equipment 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 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 is used to support 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, and the top cover inner tube is fixedly arranged on the lifting shaft. The top cover inner tube is used to support the top cover to weld the melon segment ring and the top cover.

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 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.

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

8. 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.

9. 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.

10. The welding device 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.

Images