A circular ring and top cover ring seam cutting and welding equipment applied to rocket tank head

Abstract

The application provides a ring seam cutting and welding device for a circular ring and a top cover of a rocket storage tank head, comprising a base assembly and a cutting and welding integrated assembly; the cutting and welding integrated assembly comprises a lifting base, a guide rail, a driving assembly and a cutting and welding assembly; the lifting base is arranged on the base assembly, and the base assembly is used for supporting the lifting base; the guide rail is fixedly arranged on the lifting base; the driving assembly comprises a guide rail slider, which is movably arranged along the circumferential direction of the guide rail; the top cover and the head circular ring are placed in the middle part of the guide rail; the cutting and welding assembly comprises a two-axis rack assembly, a cutting head and a welding head, and the cutting head and the welding head are arranged on the two-axis rack assembly; the two-axis rack assembly is fixedly connected with the guide rail slider, so that the guide rail slider drives the cutting head and the welding head to move along the circumferential direction of the guide rail, and the butt joint ring seam of the top cover and the head circular ring is respectively cut and welded. The ring seam cutting and welding device can realize reliable cutting and welding of the top cover and the head circular ring.

Description

Technical Field

[0001] This invention relates to the field of rocket propellant tank heads, and more specifically to a circumferential seam cutting and welding device for use in rocket propellant tank heads, specifically for the ring and top cover. Background Technology

[0002] In the manufacturing equipment for stainless steel rocket propellant tank heads, the circumferential seam between the top cover and the ring needs to be pre-cut and welded. Assembly gaps can easily occur during the assembly cutting and welding process.

[0003] To ensure the stability of cutting and welding, it is particularly important to design a circumferential seam cutting and welding device for use on the ring and top cover of rocket propellant tanks. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a circumferential seam cutting and welding device for the ring and top cover of a rocket propellant tank.

[0005] This invention provides a circumferential welding device for the ring and top cover of a rocket propellant tank head, comprising: a base assembly and an integrated welding assembly; the integrated welding assembly includes a lifting base, a guide rail, a drive assembly, and a welding assembly; the lifting base is disposed on the base assembly and is used to support the lifting base; the guide rail is fixedly disposed on the lifting base; the drive assembly includes a guide rail slider, which is movable along the circumferential direction of the guide rail; the top cover and the ring of the head are placed in the middle of the guide rail;

[0006] The cutting and welding assembly includes a two-axis frame assembly, a cutting head, and a welding head. The cutting head and the welding head are disposed on the two-axis frame assembly. The two-axis frame assembly is fixedly connected to the guide rail slider so that the guide rail slider drives the cutting head and the welding head to move along the circumferential direction of the guide rail, thereby cutting and welding the butt joint seam of the top cover and the end cap ring respectively.

[0007] According to one embodiment of the present invention, the driving assembly further includes a driven guide wheel assembly, a driving guide wheel assembly, and a conveyor belt; the driven guide wheel assembly includes a driven positioning member and a driven guide wheel; the driven positioning member is disposed on the guide rail slider; the driven guide wheel is rotatably disposed relative to the driven positioning member; the driving guide wheel assembly includes a driving positioning member, a driving motor, and a driving guide wheel; the driving positioning member is disposed on the guide rail slider; the driving guide wheel is rotatably disposed relative to the driving positioning member and connected to the driving rod of the driving motor; the conveyor belt is sleeved on the driven guide wheel and the driving guide wheel, the inner side of the conveyor belt is engaged with the driven guide wheel and the driving guide wheel; one side of the outer side of the conveyor belt is engaged with the guide rail; the driving motor is started, driving the driving rod of the driving motor to drive the driving guide wheel to rotate, the driving guide wheel drives the driven guide wheel to rotate through the conveyor belt, and the conveyor belt rolls relative to the guide rail to drive the guide rail slider to move relative to the guide rail.

[0008] According to one embodiment of the present invention, the driven positioning member includes a driven positioning locking member, a driven adjusting screw, and a driven positioning adjusting member; the driven guide wheel is disposed on the driven positioning adjusting member; the driven adjusting screw passes through the driven positioning locking member along the radial direction of the guide rail and is connected to the driven positioning adjusting member to adjust the radial position of the driven guide wheel; the driving positioning member includes a driving positioning locking member, a driving adjusting screw, and a driving positioning adjusting member; the driving guide wheel is disposed on the driving positioning adjusting member; the driving adjusting screw passes through the driving positioning locking member along the radial direction of the guide rail and is connected to the driving positioning adjusting member to adjust the radial position of the driving guide wheel.

[0009] According to one embodiment of the present invention, the integrated cutting and welding assembly further includes a clamping assembly; the clamping assembly includes an airbag assembly, a plurality of clamping claw bases, and a plurality of clamping claws; the airbag assembly includes an airbag, the airbag being disposed on the lower end face of the lifting base and distributed along its circumferential direction; the plurality of clamping claw bases are disposed on the lower end face of the lifting base along the circumferential direction of the lifting base; the clamping claws are rotatably disposed with their corresponding clamping claw bases; one end of the clamping claw is disposed below the airbag; a head ring is placed below the clamping claw; the airbag inflates, pushing the clamping claw to rotate relative to the clamping claw base, and one end of the clamping claw presses downward against the head ring.

[0010] According to one embodiment of the present invention, a clamping pin is provided at the other end of the clamping claw; the clamping pin extends toward the lifting base; the clamping assembly further includes a clamping spring, which is sleeved on the clamping pin; the two ends of the clamping spring respectively abut against the other end of the clamping claw and the lifting base; the airbag contracts, and the clamping claw rotates relative to the clamping claw base under the elastic force of the clamping spring, and one end of the clamping claw releases the end cap ring upward.

[0011] According to one embodiment of the present invention, the airbag assembly further includes a plurality of pressure transmitting elements; the pressure transmitting elements include a rotating base and a rotating member; the rotating base is disposed on the lower end face of the lifting base and distributed along its circumferential direction; the rotating member is disposed between the airbag and the pressure claw, and the rotating member is rotatably disposed relative to the rotating base; the airbag inflates, pushing the rotating member to rotate relative to the rotating base, and one end of the rotating member pushes one end of the pressure claw downward toward the end cap ring to rotate.

[0012] According to one embodiment of the present invention, the airbag assembly further includes an airbag base; the airbag base is disposed on the lower end face of the lifting base, the airbag base is provided with an annular groove, and the airbag is laid in the annular groove.

[0013] According to one embodiment of the present invention, the base assembly includes a base guide sleeve, a motor lead screw assembly, and a lead screw slider; the lead screw slider engages with the lead screw of the motor lead screw assembly; the base guide sleeve is provided with a guide member in a vertical direction, and the base guide sleeve and the guide member form a space to accommodate the motor lead screw assembly and the lead screw slider; the lead screw of the motor lead screw assembly is placed vertically to limit the movement of the lead screw slider; the lifting base is connected to the lead screw slider through a lifting frame; when the motor of the motor lead screw assembly is started, the lead screw of the motor lead screw assembly rotates, driving the lead screw slider to move up and down, and the lead screw slider drives the lifting base to move up and down through the lifting frame.

[0014] According to one embodiment of the present invention, the base assembly further includes a sleeve; the sleeve is fixedly connected to the lead screw slider; the lifting frame is provided with a locking rod; a buckle is provided on the side of the sleeve, and the buckle is provided with a locking groove corresponding to the locking rod; the lifting frame overlaps the upper end of the sleeve, and the locking groove cooperates with the locking rod to lock the lifting frame and the sleeve.

[0015] According to one embodiment of the present invention, the cutting and welding assembly further includes a misalignment adjustment assembly; the misalignment adjustment assembly is disposed in front of the welding head along the welding direction; the misalignment adjustment assembly includes an anti-misalignment drive cylinder and an anti-misalignment roller, the anti-misalignment roller being fixedly connected to the telescopic rod of the anti-misalignment drive cylinder; the telescopic rod of the anti-misalignment drive cylinder extends and retracts, driving the anti-misalignment roller toward or away from the mating circumferential seam of the top cover and the end cap ring, pressing or releasing it.

[0016] The circumferential seam cutting and welding equipment for the ring and top cover of a rocket propellant tank according to the present invention can achieve stable and controllable assembly dimensions after cutting, as well as stable and controllable welds on the butt joint circumferential seam.

[0017] It should be understood that the above general description and the following specific embodiments are merely exemplary and illustrative, and do not limit the scope of the invention. Attached Figure Description

[0018] The accompanying drawings, which are part of the specification of this invention, illustrate exemplary embodiments of the invention. The drawings, together with the description in the specification, serve to illustrate the principles of the invention.

[0019] Figure 1 This is a perspective view of a circumferential seam cutting and welding device for the ring and top cover of a rocket propellant tank, according to an embodiment of the present invention.

[0020] Figure 2 This is a perspective view of a circumferential seam cutting and welding device for the ring and top cover of a rocket propellant tank, according to another embodiment of the present invention.

[0021] Figure 3 This is a perspective view of a circumferential welder for a ring and top cover of a rocket propellant tank, according to another embodiment of the present invention.

[0022] Figure 4 This is a perspective view of a cutting and welding integrated assembly according to an embodiment of the present invention;

[0023] Figure 5 This is a perspective view of a cutting and welding assembly according to an embodiment of the present invention;

[0024] Figure 6 This is a perspective view of a cutting and welding assembly according to another embodiment of the present invention;

[0025] Figure 7 This is a perspective view of a driving component according to an embodiment of the present invention;

[0026] Figure 8 This is a perspective view of a driving component according to another embodiment of the present invention;

[0027] Figure 9 This is a perspective view of a driven guide wheel assembly according to an embodiment of the present invention;

[0028] Figure 10 This is a perspective view of a drive guide wheel assembly according to an embodiment of the present invention;

[0029] Figure 11 This is a perspective view of the driven guide wheel and the driving guide wheel according to an embodiment of the present invention;

[0030] Figure 12 This is a perspective view of a driven positioning adjustment member according to an embodiment of the present invention;

[0031] Figure 13 This is a perspective view of a clamping assembly according to an embodiment of the present invention;

[0032] Figure 14 This is a diagram of a clamping assembly according to another embodiment of the present invention;

[0033] Figure 15 This is a partial schematic diagram of a clamping assembly according to an embodiment of the present invention;

[0034] Figure 16 This is a partial schematic diagram of a clamping assembly according to another embodiment of the present invention;

[0035] Figure 17 This is a perspective view of a pressure claw according to an embodiment of the present invention;

[0036] Figure 18 This is a perspective view of a pressure transmission component according to an embodiment of the present invention;

[0037] Figure 19 This is a perspective view of a base assembly according to an embodiment of the present invention;

[0038] Figure 20 This is a perspective view of the base guide sleeve according to an embodiment of the present invention;

[0039] Figure 21 This is a partial schematic diagram of a sleeve according to an embodiment of the present invention;

[0040] Figure 22 This is a perspective view of a lifting frame according to an embodiment of the present invention;

[0041] Figure 23 This is a perspective view of a circumferential seam cutting and welding device according to an embodiment of the present invention;

[0042] Figure 24 This is a perspective view of a short-ring pressing assembly according to an embodiment of the present invention.

[0043] Explanation of reference numerals in the attached figures:

[0044] 6-1 Base assembly; 6-2 Integrated cutting and welding assembly; 6-1-1 Base guide sleeve; 6-1-2 Motor lead screw assembly; 6-1-3 Lead screw slider; 6-1-4 Connecting plate assembly; 6-1-5 Sleeve; 6-1-6 Pin; 6-2-1 Lifting base; 6-2-2 Guide rail; 6-2-3 Drive assembly; 6-2-4 Cutting and welding assembly; 6-2-5 Clamping assembly; 6-2-6 Short ring pressing assembly; 6-1-1-1 Base plate; 6-1-1-2 Channel steel column; 6-1-1- 3. Guide components; 6-1-5-1 Locking buckle; 6-2-1-1-6 Locking rod; 6-2-1-1 Lifting frame; 6-2-1-1-1 Support column; 6-2-1-1-3 Crossbeam; 6-2-3-1 Guide rail slider; 6-2-3-2 Driven guide wheel assembly; 6-2-3-3 Drive guide wheel assembly; 6-2-3-4 Conveyor belt; 6-2-4-1 Two-axis frame assembly; 6-2-4-2 Cutting head; 6-2-4-3 Welding head; 6-2-4-4 Misalignment adjustment assembly; 6 -2-5-1 Airbag assembly; 6-2-5-2 Pressure claw base; 6-2-5-3 Pressure claw; 6-2-5-4 Compression spring; 6-2-3-2-1 Driven positioning locking component; 6-2-3-2-2 Driven positioning adjusting component; 6-2-3-2-3 Driven adjusting screw; 6-2-3-2-4 Driven guide wheel; 6-2-3-3-1 Driven positioning locking component; 6-2-3-3-2 Driven positioning adjusting component; 6-2-3-3-3 Driven adjusting screw; 6-2-3- 3-4 Drive guide wheel; 6-2-3-2-2-1 Strip hole; 6-2-5-1-1 Airbag base; 6-2-5-1-2 Airbag; 6-2-5-1-3 Pressure transmission component; 6-2-5-3-1 Claw base; 6-2-5-3-2 Claw head; 6-2-5-3-3 Clamping pin; 6-2-5-1-3-1 Rotating base; 6-2-5-1-3-2 Rotating component; 6-2-5-1-3-3 Rotating shaft; 6-2-5-1-3-4 Locking screw. Detailed Implementation

[0045] The features and exemplary embodiments of various aspects of the present invention will now be described in detail. To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to 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 to exemplify 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 regions in the drawings may be enlarged for other structural components or regions to aid in the understanding of the embodiments of the present invention.

[0046] The directional terms used in the following description refer to the directions shown in the figures and are not intended to 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 stated, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0047] Furthermore, the terms "comprising," "including," "having," or any other variations thereof are intended to cover non-exclusive inclusion, such that a structure or component that includes a list of elements includes not only those elements but also other structural elements that are not expressly listed or inherent to the structure or component. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the article or apparatus that includes the element.

[0048] Spatial relation terms such as "below," "under," "under," "low," "above," "on," and "high" are used for descriptive convenience to explain the positioning of one element relative to a second element, indicating that these terms are intended to cover different orientations of the device, in addition to those different from those shown in the figure. Furthermore, phrases such as "one element on / below another element" can indicate that two elements are in direct contact, or that there are other elements between the two elements. In addition, terms such as "first" and "second" are also used to describe individual elements, areas, parts, etc., without specifically indicating order or sequence, and should not be considered restrictive. Similar terms are used throughout the description to represent similar elements.

[0049] In the following description of the present invention, the terms "rocket," "launch vehicle," "spacecraft," "space launch vehicle," or "missile" may be used in certain scenarios for ease of description only, and their connotations are not limited to the specific terms used. Generally, the rocket of the present invention includes both space launch vehicles or launch vehicles used to launch satellites, spacecraft, or other probes, and various missiles, rockets, and other weapons used to carry payloads, as well as similar products capable of sending payloads into the air. Those skilled in the art, when interpreting the above specific terms, should not limit the rocket to only one of launch vehicles or missiles based on the specific terms used in the description, thereby narrowing the scope of protection of the present invention.

[0050] For those skilled in the art, the present invention can be practiced without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of the invention by illustrating examples of the invention.

[0051] Figure 1 This is a perspective view of a circumferential seam cutting and welding device for the ring and top cover of a rocket propellant tank, according to an embodiment of the present invention. Figure 2 This is a perspective view of a circumferential seam cutting and welding device for the ring and top cover of a rocket propellant tank, according to another embodiment of the present invention. Figure 3 This is a perspective view of a circumferential welder for a ring and top cover of a rocket propellant tank, according to another embodiment of the present invention. Figure 4 This is a perspective view of a cutting and welding integrated assembly according to an embodiment of the present invention; Figure 5 This is a perspective view of a cutting and welding assembly according to an embodiment of the present invention; Figure 6 This is a perspective view of a cutting and welding assembly according to another embodiment of the present invention; Figure 7 This is a perspective view of a driving component according to an embodiment of the present invention; Figure 8 This is a perspective view of a driving component according to another embodiment of the present invention; Figure 9 This is a perspective view of a driven guide wheel assembly according to an embodiment of the present invention; Figure 10 This is a perspective view of a drive guide wheel assembly according to an embodiment of the present invention; Figure 11 This is a perspective view of the driven guide wheel and the driving guide wheel according to an embodiment of the present invention; Figure 12 This is a perspective view of a driven positioning adjustment member according to an embodiment of the present invention; Figure 13 This is a perspective view of a clamping assembly according to an embodiment of the present invention; Figure 14 This is a diagram of a clamping assembly according to another embodiment of the present invention; Figure 15 This is a partial schematic diagram of a clamping assembly according to an embodiment of the present invention; Figure 16 This is a partial schematic diagram of a clamping assembly according to another embodiment of the present invention; Figure 17 This is a perspective view of a pressure claw according to an embodiment of the present invention; Figure 18 This is a perspective view of a pressure transmission component according to an embodiment of the present invention; Figure 19 This is a perspective view of a base assembly according to an embodiment of the present invention; Figure 20 This is a perspective view of the base guide sleeve according to an embodiment of the present invention; Figure 21 This is a partial schematic diagram of a sleeve according to an embodiment of the present invention; Figure 22 This is a perspective view of a lifting frame according to an embodiment of the present invention; Figure 23 This is a perspective view of a circumferential seam cutting and welding device according to an embodiment of the present invention; Figure 24 This is a perspective view of a short-ring pressing assembly according to an embodiment of the present invention.

[0052] like Figure 1-5As shown, this invention provides a circumferential welding device for the ring and top cover of a rocket propellant tank head, comprising: a base assembly 6-1 and an integrated welding assembly 6-2. The integrated welding assembly 6-2 includes a lifting base 6-2-1, a guide rail 6-2-2, a drive assembly 6-2-3, and a welding assembly 6-2-4. The lifting base 6-2-1 is disposed on the base assembly 6-1, and the base assembly 6-1 supports the lifting base 6-2-1. The guide rail 6-2-2 is fixedly disposed on the lifting base 6-2-1. The drive assembly 6-2-3 includes a guide rail slider 6-2-3-1, which is movable along the circumferential direction of the guide rail 6-2-2. The top cover and the ring of the head are placed in the middle of the guide rail 6-2-2. The cutting and welding assembly 6-2-4 includes a two-axis frame assembly 6-2-4-1, a cutting head 6-2-4-2, and a welding head 6-2-4-3, which are mounted on the two-axis frame assembly 6-2-4-1. The two-axis frame assembly 6-2-4-1 is fixedly connected to a guide rail slider 6-2-3-1, so that the guide rail slider 6-2-3-1 drives the cutting head 6-2-4-2 and the welding head 6-2-4-3 to move along the circumferential direction of the guide rail 6-2-2, thereby cutting and welding the butt joint of the top cover and the end cap ring, respectively.

[0053] In this embodiment, the guide slider 6-2-3-1 of the drive assembly 6-2-3 moves circumferentially along the guide rail 6-2-2, driving the integrated cutting and welding assembly 6-2 to precisely cut the top cover allowance and the end cap ring, as well as weld the butt joint circumferential seam of the top cover and the end cap ring. This circumferential seam cutting and welding equipment, by using a common rail for cutting and welding of the cutting head 6-2-4-2 and the welding head 6-2-4-3, can achieve stable and controllable assembly dimensions after cutting, as well as stable and controllable welds on the butt joint circumferential seam.

[0054] For example, four base assemblies 6-1 can be arranged along the circumferential direction of the lifting base 6-2-1 to support the integrated cutting and welding assembly 6-2.

[0055] like Figure 3 and Figure 6-10As shown, according to one embodiment of the present invention, in addition to the guide rail slider 6-2-3-1, the drive assembly 6-2-3 further includes a driven guide wheel assembly 6-2-3-2, a drive guide wheel assembly 6-2-3-3, and a conveyor belt 6-2-3-4. The driven guide wheel assembly 6-2-3-2 includes a driven positioning member and a driven guide wheel 6-2-3-2-4. The driven positioning member is disposed on the guide rail slider 6-2-3-1. The driven guide wheel 6-2-3-2-4 is rotatably disposed relative to the driven positioning member. The drive guide wheel assembly 6-2-3-3 includes a drive positioning member, a drive motor, and a drive guide wheel 6-2-3-3-4. The drive positioning member is disposed on the guide rail slider 6-2-3-1. The drive guide wheel 6-2-3-3-4 is rotatably disposed relative to the drive positioning member and is connected to the drive rod of the drive motor. The conveyor belt 6-2-3-4 is fitted onto the driven guide wheel 6-2-3-2-4 and the drive guide wheel 6-2-3-3-4. The inner side of the conveyor belt 6-2-3-4 meshes with the driven guide wheel 6-2-3-2-4 and the drive guide wheel 6-2-3-3-4. One outer side of the conveyor belt 6-2-3-4 meshes with the guide rail 6-2-2. When the drive motor starts, the drive rod of the drive motor drives the drive guide wheel 6-2-3-3-4 to rotate. The drive guide wheel 6-2-3-3-4 drives the driven guide wheel 6-2-3-2-4 to rotate via the conveyor belt 6-2-3-4. The conveyor belt 6-2-3-4 rolls relative to the guide rail 6-2-2, thereby moving the guide rail slider 6-2-3-1 relative to the guide rail 6-2-2.

[0056] In this embodiment, the drive motor provides power for the rotation of the drive guide wheel 6-2-3-3-4. The driven guide wheel 6-2-3-2-4 and the drive guide wheel 6-2-3-3-4 are used to press the conveyor belt 6-2-3-4 against the guide rail 6-2-2. The driven guide wheel assembly 6-2-3-2 and the drive guide wheel assembly 6-2-3-3 cooperate to increase the contact area between the conveyor belt 6-2-3-4 and the guide rail 6-2-2, thereby improving the friction between the drive assembly 6-2-3 and the guide rail, ensuring the stability of cutting and welding. For example, the drive assembly 6-2-3 may include two sets of driven guide wheel assemblies 6-2-3-2.

[0057] like Figure 11 As shown, for example, the driven guide wheel 6-2-3-2-4 and the driving guide wheel 6-2-3-3-4 can be composed of rolling bearings, bearing rollers, shafts, and locking elements. The bearing rollers are interference-fitted with the shafts. The locking element can be a threaded collar.

[0058] like Figure 9 and Figure 10As shown, according to one embodiment of the present invention, the driven positioning member includes a driven positioning locking member 6-2-3-2-1, a driven adjusting screw 6-2-3-2-3, and a driven positioning adjusting member 6-2-3-2-2. A driven guide wheel 6-2-3-2-4 is disposed on the driven positioning adjusting member 6-2-3-2-2. The driven adjusting screw 6-2-3-2-3 passes through the driven positioning locking member 6-2-3-2-1 along the radial direction of the guide rail 6-2-2 and connects with the driven positioning adjusting member 6-2-3-2-2 to adjust the radial position of the driven guide wheel 6-2-3-2-4.

[0059] The drive positioning component includes a drive positioning locking component 6-2-3-3-1, a drive adjusting screw 6-2-3-3-3, and a drive positioning adjusting component 6-2-3-3-2. A drive guide wheel 6-2-3-3-4 is mounted on the drive positioning adjusting component 6-2-3-3-2. The drive adjusting screw 6-2-3-3-3 passes through the drive positioning locking component 6-2-3-3-1 along the radial direction of the guide rail 6-2-2 and connects with the drive positioning adjusting component 6-2-3-3-2 to adjust the radial position of the drive guide wheel 6-2-3-3-4.

[0060] In this embodiment, the driven positioning locking member 6-2-3-2-1 and the driving positioning locking member 6-2-3-3-1 are fixedly connected to the guide rail slider 6-2-3-1. The driven and driving positioning members act as adjusting members. By adjusting the position of the driven positioning adjusting member 6-2-3-2-2 relative to the driven positioning locking member 6-2-3-2-1 and the position of the driving positioning adjusting member 6-2-3-3-2 relative to the driving positioning locking member 6-2-3-3-1, the radial positions of the driven guide wheel 6-2-3-2-4 and the driving guide wheel 6-2-3-3-4 can be adjusted respectively. This adjusts the friction between the driven guide wheel assembly 6-2-3-2 and the driving guide wheel assembly 6-2-3-3 and the conveyor belt 6-2-3-4, and between the conveyor belt 6-2-3-4 and the guide rail 6-2-2, ensuring constant friction and stable operation of the welding assembly 6-2-4.

[0061] like Figure 12As shown, for example, the driven positioning adjustment member 6-2-3-2-2 can be provided with a strip hole 6-2-3-2-2-1. By engaging with the strip hole 6-2-3-2-2-1 with screws, the driven positioning adjustment member 6-2-3-2-2 is fixedly connected to the guide rail slider 6-2-3-1. The position of the driven guide wheel assembly 6-2-3-2 relative to the guide rail slider 6-2-3-1 can be adjusted by engaging with the strip hole 6-2-3-2-2-1 with screws, so as to adjust the pressure of the driven guide wheel assembly 6-2-3-2 on the conveyor belt 6-2-3-4. For example, the driven positioning adjustment member 6-2-3-2-2 is first connected to the driven positioning locking member 6-2-3-2-1 by the driven adjusting screw 6-2-3-2-3, and then the radial position of the driven guide wheel assembly 6-2-3-2 is adjusted by adjusting the strip hole 6-2-3-2-2-1 and its corresponding screw, thereby adjusting the pressure of the driven guide wheel assembly 6-2-3-2 on the conveyor belt 6-2-3-4 and the guide rail 6-2-2.

[0062] like Figure 3 and Figure 13-16 As shown, according to one embodiment of the present invention, in addition to the lifting base 6-2-1, guide rail 6-2-2, drive assembly 6-2-3, and cutting and welding assembly 6-2-4, the integrated cutting and welding assembly 6-2 also includes a clamping assembly 6-2-5. The clamping assembly 6-2-5 includes an airbag assembly 6-2-5-1, multiple clamping claw bases 6-2-5-2, and multiple clamping claws 6-2-5-3. The airbag assembly 6-2-5-1 includes an airbag 6-2-5-1-2, which is disposed on the lower end face of the lifting base 6-2-1 and distributed along its circumferential direction. The multiple clamping claw bases 6-2-5-2 are disposed on the lower end face of the lifting base 6-2-1 along its circumferential direction. The pressure claw 6-2-5-3 and its corresponding pressure claw base 6-2-5-2 are rotatably mounted. One end of the pressure claw 6-2-5-3 is positioned below the airbag 6-2-5-1-2, and the end cap ring is placed below the pressure claw 6-2-5-3. When the airbag 6-2-5-1-2 inflates, it pushes the pressure claw 6-2-5-3 to rotate relative to the pressure claw base 6-2-5-2, and one end of the pressure claw 6-2-5-3 presses downward to tighten the end cap ring.

[0063] In this embodiment, during cutting and welding, the airbag 6-2-5-1-2 expands and pushes one end of the pressure claw 6-2-5-3 downward to press the upper part of the end cap ring, which can provide stable and uniform pressure to the pressure claw 6-2-5-3, ensuring that the pressing assembly 6-2-5 presses the end cap ring stably and uniformly, ensuring that the end cap ring does not have wavy deformation, and ensuring the cutting and welding accuracy.

[0064] like Figure 16As shown, according to one embodiment of the present invention, a clamping pin 6-2-5-3 is provided at the other end of the clamping claw 6-2-5-3. The clamping pin 6-2-5-3-3 extends toward the lifting base 6-2-1. The clamping assembly 6-2-5 also includes a clamping spring 6-2-5-4, which is sleeved on the clamping pin 6-2-5-3-3. The two ends of the clamping spring 6-2-5-4 abut against the other end of the clamping claw 6-2-5-3 and the lifting base 6-2-1, respectively. When the airbag 6-2-5-1-2 contracts, the clamping claw 6-2-5-3 rotates relative to the clamping claw base 6-2-5-2 under the elastic force of the clamping spring 6-2-5-4, and one end of the clamping claw 6-2-5-3 releases the end cap ring upward.

[0065] like Figure 15 and Figure 17 As shown, the pressure claw 6-2-5-3 includes a pressure claw base 6-2-5-3-1 and a pressure claw head 6-2-5-3-2. The pressure claw base 6-2-5-3-1 is rotatably connected to the pressure claw base 6-2-5-2, and the pressure claw head 6-2-5-3-2 is fixedly connected to the pressure claw base 6-2-5-3-1 and positioned away from the clamping pin 6-2-5-3-3. The rotatable connection between the pressure claw base 6-2-5-3-1 and the pressure claw base 6-2-5-2 is located between the pressure claw head 6-2-5-3-2 and the clamping pin 6-2-5-3-3. When the airbag 6-2-5-1-2 inflates, it pushes the pressure claw head 6-2-5-3-2 downwards to press against the end cap ring. The pressure claw base 6-2-5-3-1 rotates relative to the pressure claw base 6-2-5-2, and the end of the pressure claw base 6-2-5-3-1 with the pressure pin 6-2-5-3 rotates towards the lifting base 6-2-1, compressing the pressure spring 6-2-5-4. When the airbag 6-2-5-1-2 contracts, the pressure spring 6-2-5-4 rebounds, causing the end of the pressure claw base 6-2-5-3-1 with the pressure pin 6-2-5-3-3 to move away from the lifting base 6-2-1, and the pressure claw head 6-2-5-3-2 releases the end cap ring. When the airbag is not inflated, the pressure spring 6-2-5-4 can limit the position of the pressure claw 6-2-5-3 to the open state.

[0066] like Figure 16 and Figure 18As shown, according to one embodiment of the present invention, in addition to the airbag 6-2-5-1-2, the airbag assembly 6-2-5-1 further includes a plurality of pressure transmission elements 6-2-5-1-3. Each pressure transmission element 6-2-5-1-3 includes a rotating base 6-2-5-1-3-1 and rotating elements 6-2-5-1-3-2. The rotating base 6-2-5-1-3-1 is disposed on the lower end face of the lifting base 6-2-1 and distributed along its circumferential direction. The rotating elements 6-2-5-1-3-2 are disposed between the airbag 6-2-5-1-2 and the pressure claw 6-2-5-3, and are rotatably disposed relative to the rotating base 6-2-5-1-3-1. The airbag 6-2-5-1-2 inflates, pushing the rotating part 6-2-5-1-3-2 to rotate relative to the rotating base 6-2-5-1-3-1. One end of the rotating part 6-2-5-1-3-2 pushes one end of the pressure claw 6-2-5-3 downwards towards the end ring of the end cap.

[0067] In this embodiment, for example, the rotating base 6-2-5-1-3-1 can be locked to the flange edge of the lower end face of the lifting base 6-2-1 by locking screws 6-2-5-1-3-4. The rotating base 6-2-5-1-3-1 is provided with a rotating shaft 6-2-5-1-3-3, and the rotating component 6-2-5-1-3-2 can rotate around the rotating shaft 6-2-5-1-3-3. The airbag 6-2-5-1-2 transmits the expansion pressure to the pressure claw 6-2-5-3 through the rotating component 6-2-5-1-3-2.

[0068] like Figure 16 As shown, according to one embodiment of the present invention, in addition to the airbag 6-2-5-1-2, the airbag assembly 6-2-5-1 also includes an airbag base 6-2-5-1-1. The airbag base 6-2-5-1-1 is disposed on the lower end face of the lifting base 6-2-1, and the airbag base 6-2-5-1-1 is provided with an annular groove, in which the airbag 6-2-5-1-2 is laid.

[0069] In this embodiment, the airbag base 6-2-5-1-1 can restrict the expansion direction of the airbag 6-2-5-1-2 through its annular groove.

[0070] like Figure 1 , Figure 19 and Figure 20As shown, according to one embodiment of the present invention, the base assembly 6-1 includes a base guide sleeve 6-1-1, a motor lead screw assembly 6-1-2, and a lead screw slider 6-1-3. The lead screw slider 6-1-3 engages with the lead screw of the motor lead screw assembly 6-1-2. The base guide sleeve 6-1-1 is provided with a guide member 6-1-1-3 in a vertical direction, and the base guide sleeve 6-1-1 and the guide member 6-1-1-3 form a space to accommodate the motor lead screw assembly 6-1-2 and the lead screw slider 6-1-3. The lead screw of the motor lead screw assembly 6-1-2 is placed vertically to limit the movement of the lead screw slider 6-1-3. The lifting base 6-2-1 is connected to the lead screw slider 6-1-3 through the lifting frame 6-2-1-1. When the motor of the lead screw assembly 6-1-2 is started, the lead screw of the motor lead screw assembly 6-1-2 rotates, which drives the lead screw slider 6-1-3 to move up and down. The lead screw slider 6-1-3 drives the lifting base 6-2-1 to move up and down through the lifting frame 6-2-1-1.

[0071] In this embodiment, the base assembly 6-1 provides a lifting function for the integrated cutting and welding assembly 6-2. For example, as Figure 19 As shown, the base guide sleeve 6-1-1 also includes a base plate 6-1-1-1 and two channel steel columns 6-1-1-2, which are spaced apart from the base plate 6-1-1-1. The two channel steel columns 6-1-1-2, the base plate 6-1-1-1, and the guide member 6-1-1-3 form a space to accommodate the motor lead screw assembly 6-1-2 and the lead screw slider 6-1-3, providing guidance for the lifting and lowering of the lead screw slider 6-1-3.

[0072] like Figure 19 and 21 As shown, according to one embodiment of the present invention, in addition to the base guide sleeve 6-1-1, the motor lead screw assembly 6-1-2, and the lead screw slider 6-1-3, the base assembly 6-1 also includes a sleeve 6-1-5. The sleeve 6-1-5 is fixedly connected to the lead screw slider 6-1-3. The lifting frame 6-2-1-1 is provided with a locking rod 6-2-1-1-6. A latch 6-1-5-1 is provided on the side of the sleeve 6-1-5, and the latch 6-1-5-1 is provided with a locking groove corresponding to the locking rod 6-2-1-1-6. The lifting frame 6-2-1-1 overlaps the upper end of the sleeve 6-1-5, and the locking groove cooperates with the locking rod 6-2-1-1-6 to lock the lifting frame 6-2-1-1 and the sleeve 6-1-5.

[0073] In this embodiment, for example, the sleeve 6-1-5 can be fixedly connected to the lead screw slider 6-1-3 via the connecting plate assembly 6-1-4. The circumferential weld cutting and welding equipment, through the cooperation of the latch 6-1-5-1 and the locking rod 6-2-1-1-6, enables the rapid positioning, installation, and disassembly of the base assembly 6-1 and the lifting frame 6-2-1-1.

[0074] For example, such as Figure 1 and Figure 22 As shown, the lifting frame 6-2-1-1 includes a crossbeam 6-2-1-1-3 and a support column 6-2-1-1-1. The crossbeam 6-2-1-1-3 connects the sleeve 6-1-5 and the lifting base. The support column 6-2-1-1-1 connects the crossbeam 6-2-1-1-3 and the sleeve 6-1-5 to reinforce the support of the base assembly 6-1 on the lifting frame 6-2-1-1. The sleeve 6-1-5 has a positioning locking pin hole on its side facing the lifting frame 6-2-1-1 (e.g., near its bottom). The support column 6-2-1-1-1 and the sleeve 6-1-5 are connected using a pin 6-1-6, enabling quick installation and disassembly between the two.

[0075] like Figure 22 As shown, the crossbeam 6-2-1-1-3 is equipped with a lifting ring 6-2-1-1-5, which is used for lifting the crossbeam 6-2-1-1-3 for its installation. The crossbeam 6-2-1-1-3 is detachably connected to the lifting base 6-2-1-2 via a connector 6-2-1-1-4.

[0076] like Figure 5 As shown, according to one embodiment of the present invention, in addition to the two-axis frame assembly 6-2-4-1, the cutting head 6-2-4-2, and the welding head 6-2-4-3, the cutting and welding assembly 6-2-4 also includes a misalignment adjustment assembly 6-2-4-4. The misalignment adjustment assembly 6-2-4-4 is positioned in front of the welding head 6-2-4-3 along the welding direction. The misalignment adjustment assembly 6-2-4-4 includes an anti-misalignment drive cylinder and an anti-misalignment roller, the anti-misalignment roller being fixedly connected to the telescopic rod of the anti-misalignment drive cylinder. The telescopic rod of the anti-misalignment drive cylinder extends and retracts, causing the anti-misalignment roller to move towards or away from the mating circumferential seam of the top cover and the end cap ring, thus pressing or releasing it.

[0077] In this embodiment, the misalignment adjustment component 6-2-4-4 can eliminate the misalignment of the end cap circumferential seam and ensure welding accuracy. For example, the two-axis frame component 6-2-4-1 can be equipped with two sets of linear guides so that the cutting head 6-2-4-2 and the welding head 6-2-4-3 can move synchronously along the X-axis (i.e., the radial direction) and the Y-axis (i.e., the axial direction).

[0078] like Figure 23 and Figure 24 As shown, according to one embodiment of the present invention, a short ring pressing assembly 6-2-6 is further provided on the lower end face of the crossbeam 6-2-1-1-3. The short ring pressing assembly 6-2-6 includes a cylinder and a pressure plate, the pressure plate being connected to the telescopic rod of the cylinder. When the cylinder is activated, its telescopic rod extends to push the pressure plate downward to press the short ring, thereby ensuring stable assembly of the end cap and the short ring.

[0079] The above embodiments of the present invention can be combined with each other and have corresponding technical effects.

[0080] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A circumferential welding device for the ring and top cover of a rocket propellant tank, characterized in that, include: The base assembly and the integrated cutting and welding assembly; the integrated cutting and welding assembly includes a lifting base, a guide rail, a drive assembly, and a cutting and welding assembly; The lifting base is disposed on the base assembly, and the base assembly is used to support the lifting base; the guide rail is fixedly disposed on the lifting base; the driving assembly includes a guide rail slider, which is movable along the circumferential direction of the guide rail; the top cover and the end cap ring are placed in the middle of the guide rail; The cutting and welding assembly includes a two-axis frame assembly, a cutting head, and a welding head. The cutting head and the welding head are disposed on the two-axis frame assembly. The two-axis frame assembly is fixedly connected to the guide rail slider so that the guide rail slider drives the cutting head and the welding head to move along the circumferential direction of the guide rail, thereby cutting and welding the butt joint seam of the top cover and the end cap ring respectively.

2. The circumferential weld cutting and welding equipment according to claim 1, characterized in that, The drive assembly further includes a driven guide wheel assembly, a drive guide wheel assembly, and a conveyor belt; the driven guide wheel assembly includes a driven positioning member and a driven guide wheel; the driven positioning member is disposed on the guide rail slider; the driven guide wheel is rotatably disposed relative to the driven positioning member; the drive guide wheel assembly includes a drive positioning member, a drive motor, and a drive guide wheel; the drive positioning member is disposed on the guide rail slider; the drive guide wheel is rotatably disposed relative to the drive positioning member and is connected to the drive rod of the drive motor; The conveyor belt is sleeved on the driven guide wheel and the driving guide wheel, and the inner side of the conveyor belt is engaged with the driven guide wheel and the driving guide wheel; one side of the outer side of the conveyor belt is engaged with the guide rail; when the drive motor is started, the drive rod of the drive motor drives the driving guide wheel to rotate, and the driving guide wheel drives the driven guide wheel to rotate through the conveyor belt, and the conveyor belt rolls relative to the guide rail, so as to drive the guide rail slider to move relative to the guide rail.

3. The circumferential weld cutting and welding equipment according to claim 2, characterized in that, The driven positioning component includes a driven positioning locking component, a driven adjusting screw, and a driven positioning adjusting component; the driven guide wheel is disposed on the driven positioning adjusting component; the driven adjusting screw passes through the driven positioning locking component along the radial direction of the guide rail and is connected to the driven positioning adjusting component to adjust the radial position of the driven guide wheel; The drive positioning component includes a drive positioning locking component, a drive adjusting screw, and a drive positioning adjusting component; the drive guide wheel is disposed on the drive positioning adjusting component. The drive adjustment screw passes through the drive positioning locking member along the radial direction of the guide rail and connects with the drive positioning adjustment member to adjust the radial position of the drive guide wheel.

4. The circumferential weld cutting and welding equipment according to claim 1, characterized in that, The integrated cutting and welding assembly further includes a clamping assembly; the clamping assembly includes an airbag assembly, multiple clamping claw bases, and multiple clamping claws; the airbag assembly includes an airbag, which is disposed on the lower end face of the lifting base and distributed along its circumferential direction; the multiple clamping claw bases are disposed on the lower end face of the lifting base along its circumferential direction; the clamping claws and their corresponding clamping claw bases are rotatably disposed; one end of the clamping claw is disposed below the airbag; the end cap ring is placed below the clamping claw; the airbag inflates, pushing the clamping claw to rotate relative to the clamping claw base, and one end of the clamping claw presses downward against the end cap ring.

5. The circumferential weld cutting and welding equipment according to claim 4, characterized in that, The other end of the pressure claw is provided with a clamping pin; the clamping pin extends toward the lifting base; the clamping assembly also includes a clamping spring, which is sleeved on the clamping pin; the two ends of the clamping spring respectively abut against the other end of the pressure claw and the lifting base; The airbag contracts, and the pressure claw rotates relative to the pressure claw base under the elastic force of the compression spring, with one end of the pressure claw releasing the end cap ring upwards.

6. The circumferential weld cutting and welding equipment according to claim 4, characterized in that, The airbag assembly further includes multiple pressure transmission components; each pressure transmission component includes a rotating base and a rotating member; the rotating base is disposed on the lower end face of the lifting base and distributed along its circumferential direction; the rotating member is disposed between the airbag and the pressure claw, and the rotating member is rotatably disposed relative to the rotating base; the airbag inflates, pushing the rotating member to rotate relative to the rotating base, and one end of the rotating member pushes one end of the pressure claw downward toward the end cap ring to rotate.

7. The circumferential weld cutting and welding equipment according to claim 4, characterized in that, The airbag assembly also includes an airbag base; the airbag base is disposed on the lower end face of the lifting base, the airbag base is provided with an annular groove, and the airbag is laid in the annular groove.

8. The circumferential weld cutting and welding equipment according to claim 1, characterized in that, The base assembly includes a base guide sleeve, a motor lead screw assembly, and a lead screw slider; the lead screw slider engages with the lead screw of the motor lead screw assembly; the base guide sleeve is provided with a guide member in the vertical direction, and the base guide sleeve and the guide member form a space to accommodate the motor lead screw assembly and the lead screw slider; the lead screw of the motor lead screw assembly is placed vertically to limit the movement of the lead screw slider; the lifting base is connected to the lead screw slider through a lifting frame; When the motor of the motor lead screw assembly is started, the lead screw of the motor lead screw assembly rotates, causing the lead screw slider to move up and down. The lead screw slider drives the lifting base to move up and down through the lifting frame.

9. The circumferential weld cutting and welding equipment according to claim 8, characterized in that, The base assembly also includes a sleeve; the sleeve is fixedly connected to the lead screw slider; the lifting frame is provided with a locking rod; a buckle is provided on the side of the sleeve, and the buckle is provided with a locking groove corresponding to the locking rod; the lifting frame is attached to the upper end of the sleeve, and the locking groove cooperates with the locking rod to lock the lifting frame and the sleeve.

10. The circumferential weld cutting and welding equipment according to claim 1, characterized in that, The welding assembly further includes a misalignment adjustment assembly; the misalignment adjustment assembly is located in front of the welding head along the welding direction; the misalignment adjustment assembly includes an anti-misalignment drive cylinder and an anti-misalignment roller, the anti-misalignment roller being fixedly connected to the telescopic rod of the anti-misalignment drive cylinder; the telescopic rod of the anti-misalignment drive cylinder extends and retracts, causing the anti-misalignment roller to move toward or away from the mating circumferential seam of the top cover and the end cap ring, pressing or releasing it.

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