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CN-117359536-B - Flexible assembly type carrier rocket cabin frame and assembly method

CN117359536BCN 117359536 BCN117359536 BCN 117359536BCN-117359536-B

Abstract

The invention provides a carrier rocket cabin flexible assembly frame and an assembly method thereof, which relate to the technical field of carrier rocket cabin manufacturing, and comprise an upper disc, a supporting disc, a support arm, a transition cylinder, a joint, a pedal, a foundation cylinder and a lower disc, wherein the transition cylinder is connected to the foundation cylinder, one end of the transition cylinder is connected to the lower disc, the other end of the transition cylinder is connected to the bottom of the supporting disc, the upper plate is connected to the supporting plate top, and supporting plate and transition section of thick bamboo lateral wall are connected respectively on basic section of thick bamboo, and the footboard is connected transition section of thick bamboo and basic section of thick bamboo respectively, is equipped with the joint on the support arm, and support arm, basic section of thick bamboo, joint are connected on the lower plate, and the lower plate bottom is fixed in subaerial, realizes the assembly of cabin body part through upper plate, support arm, joint and lower plate. The invention realizes one frame for multiple purposes, completes the positioning and assembly of the upper end frame, the lower end frame, the middle frame and the cabin body, has the flexible assembly capability of the cabin bodies with different heights, can greatly reduce the tooling investment, reduces the occupied space, reduces the development cost, and has good manufacturability and obvious economy.

Inventors

  • LIANG YING
  • WANG LIANG
  • ZHANG FENG
  • SHEN HONGHUA
  • GU CHEN

Assignees

  • 上海航天精密机械研究所

Dates

Publication Date
20260508
Application Date
20220630

Claims (6)

  1. 1. The utility model provides a flexible assembly type carrier rocket cabin frame, its characterized in that includes upper disc (1), supporting disk (2), support arm (3), transition section of thick bamboo (4), connect (5), footboard (6), basic section of thick bamboo (7) and lower disc (8), transition section of thick bamboo (4) connect on basic section of thick bamboo (7), transition section of thick bamboo (4) one end connect on lower disc (8), transition section of thick bamboo (4) other end connect in supporting disk (2) bottom, supporting disk (2) top connect upper disc (1), supporting disk (2) and transition section of thick bamboo (4) lateral wall connect respectively in basic section of thick bamboo (7), footboard (6) connect respectively transition section of thick bamboo (4) and basic section of thick bamboo (7), be equipped with on support arm (3) connect (5), support arm (3), basic section of thick bamboo (7), connect (5) connect on lower disc (8) bottom is fixed in on upper disc (8), through support arm (4) lateral wall connect (4) and lower disc (7) and realize that cabin body (8); The upper disc (1) comprises a disc body (101), an upper stop block (102) and hanging rings (103), wherein the upper stop block (102) is circumferentially arranged on the disc body (101), a connecting plate position line is carved on the disc body (101), and the hanging rings (103) are uniformly distributed on the disc body (101); the tray body (101) and the upper stop block (102) are assembled with a cabin upper end frame assembly, and the upper tray (1) and the cabin upper end frame are hoisted through the hoisting ring (103); The lower disc (8) comprises a platform (801), a lower stop block (802), a groove (803) and a first positioning block (804), wherein the lower stop block (802) is circumferentially distributed on the platform (801), the platform (801) is provided with the groove (803), the first positioning block (804) is positioned at the center of the platform (801), and the foundation cylinder (7) is positioned on the platform (801) through the first positioning block (804); The support arm (3) comprises a support rod (301), a radial positioning pin (302), a height positioning pin (303), a switching section (304), a clamping ring (305) and a base section (306), wherein the lower end of the base section (306) is connected with the lower disc (8), the upper end of the base section (306) is connected with the switching section (304) through the clamping ring (305), the support rod (301) is uniformly distributed on the switching section (304) and the base section (306), and the radial positioning pin (302) and the height positioning pin (303) are respectively arranged on the support rod (301); the stay bar (301) is in position control with the switching section (304) and the base section (306) in the height and radial directions through the radial positioning pin (302) and the height positioning pin (303), and the outermost end of the stay bar (301) is attached to the middle frame of the cabin body, so that the roundness of the assembly of the middle frame is guaranteed; The connector (5) comprises a stand column (501), a pin rod (502), a connecting rod (503), an annular disc (504) and a locating pin (505), wherein the connecting rod (503) penetrates through the stand column (501), one end of the connecting rod (503) is connected with the pin rod (502), the other end of the connecting rod (503) is connected with the annular disc (504), and the annular disc (504) is connected with the locating pin (505); The upright post (501) is connected to the lower disc (8), the lower disc is connected with the cabin tail connector through the pin rod (502), the annular disc (504) is rotated to enable the connecting rod (503) to feed horizontally along the inner guide groove, and when the connecting rod (503) reaches the cabin tail connector installation position, the locating pin (505) is installed.
  2. 2. The flexible assembly type carrier rocket cabin according to claim 1, wherein the transition barrel (4) comprises a first barrel body (401), first ribs (402), first leveling blocks (403), upper positioning grooves (404) and lower positioning grooves (405), two ends of the first barrel body (401) are respectively provided with an upper working surface and a lower working surface, the first ribs (402) are uniformly distributed on the first barrel body (401), two ends of the first ribs (402) are respectively connected to the upper working surface and the lower working surface, a plurality of upper positioning grooves (404) are formed in the upper working surface, the first leveling blocks (403) are uniformly distributed at the bottom of the upper working surface, a plurality of lower positioning grooves (405) are formed in the lower working surface, through holes are formed in the first ribs (402), and the first ribs (402) are connected with the pedal (6) through the through holes.
  3. 3. The carrier rocket cabin flexible assembly type frame according to claim 2, wherein the foundation barrel (7) comprises a second barrel body (701), second ribs (702), a second leveling block (703), second positioning blocks (704) and positioning grooves (705), two ends of the second barrel body (701) are respectively provided with an upper working surface and a lower working surface, the second ribs (702) are circumferentially fixed on the second barrel body (701), two ends of the second ribs (702) are respectively connected with the upper working surface and the lower working surface, a plurality of second positioning blocks (704) are arranged on the upper working surface, the bottom of the upper working surface is provided with the second leveling block (703), a plurality of positioning grooves (705) are uniformly distributed on the lower working surface, through holes are formed in the second ribs (702), and the second ribs (702) are connected with the pedal (6) through the through holes.
  4. 4. A launch vehicle cabin flexible assembly type stand according to claim 3, wherein the pedal (6) comprises a support plate (601) and a tripod (602), vertical support edges of the tripod (602) are respectively connected with the first rib (402) and the second rib (702), and transverse support edges of the tripod (602) are connected with the support plate (601); by adjusting the positions of the tripod (602), the first ribs (402) and the second ribs (702), the pedal (6) is lifted in the axial direction.
  5. 5. The flexible assembly type carrier rocket capsule according to claim 1, wherein the supporting disc (2) adopts a reinforced diffusion structure, and the supporting disc (2) realizes the transition between the foundation cylinder (7) or the transition cylinder (4) and the upper disc (1) in the diameter direction.
  6. 6. A method of assembling a flexible assembly jig for a launch vehicle cabin according to claim 3 or 4, comprising the steps of: S1, lifting the upper disc (1) and a cabin upper end frame assembly through the lifting ring (103), installing the upper disc (1) and the cabin upper end frame assembly through the disc body (101) and the upper stop block (102), turning the upper disc (1) by 90 degrees, and completing butt joint surface hole making operation through three steps of prefabricating a bottom hole, reaming and reaming by utilizing a drill bushing; S2, assembling the lower disc (8) with a lower end frame assembly of the cabin body through a platform (801) and a lower stop block (802), and finishing butt joint surface hole making operation from bottom to top through three steps of prefabricating bottom holes, reaming and reaming by utilizing a drill sleeve; s3, overlapping upper and lower end frames of the cabin body, aligning the benchmarks, enabling the outer edges to be in a cambered surface, and sequentially drawing stringers and large Liang Zhouxiang distribution lines, removing the upper stop block (102) and the lower stop block (802), and positioning and fixing the upper and lower end frames through the upper disc (1) and the lower disc (8); S4, installing the height positioning pins (303) on the support arms (3) of each layer to position the middle frame of the cabin in the height direction; S5, hoisting the upper disc (1), the supporting disc (2) and the upper end frame to the foundation cylinder (7) through the hoisting ring (103), and fixing the upper disc, the supporting disc and the upper end frame by adopting a second positioning block (704); S6, sequentially installing stringers and large Liang Lingjian in the circumferential direction, and connecting the stringers with the upper end frame and the lower end frame in a positioning way by adopting bows or process rivets; s7, installing the pedal (6) according to the convenience of the operation of the height of the personnel, or when other height cabins are required to be installed, realizing the transition of the height direction and the convenience of the operation of the personnel by adding the transition cylinder (4) and the switching section (304) and adjusting the installation height of the pedal (6); S8, rotating the radial positioning pins (302), adjusting the positions of the middle frame ring parts according to the reference positions of the upper end frame and the lower end frame, ensuring the middle frame ring parts to be clamped at the ends of the supporting rods (301), and completing the assembly of the middle frame assembly by means of stringers and girder parts; S9, preassembling the skin, namely reversely reaming through holes of the skin from an upper end frame, an intermediate frame, a lower end frame, stringers and a large Liang Lingjian, separating the skin for allowance repair and surplus cleaning; S10, reinstalling the skin, riveting and screwing to form the cabin.

Description

Flexible assembly type carrier rocket cabin frame and assembly method Technical Field The invention relates to the technical field of manufacturing of carrier rocket cabins, in particular to a carrier rocket cabin flexible assembly type frame and an assembly method. Background In the fields of machining and assembly manufacturing, the manufacturing of products is generally finished by utilizing manual or equipment by means of a general or special fixture. In the field of assembly of the riveted cabin body (structural members such as a box section, an interstage section, a rear transition section and a tail section) of the carrier rocket, the assembly can be completed only by means of a tool-assembly type frame due to the large diameter size of the cabin body, so that the shape keeping controllability of a product is realized. Different process equipment is needed in different procedures of part processing, assembly assembling, cabin part assembling and the like of the riveting cabin body, and the riveting cabin body is large in size and weight, so that the occupation of a place is serious, and the development cost is increased dramatically. Taking the tail section of an active rocket as an example, the assembly of the upper end frame and the lower end frame (mostly L-shaped) and the hole making of the butt joint surface are realized by adopting 2 drilling jigs, the diameter of each drilling jig is approximately 4m, the cost is about 15 ten thousand yuan, the four-layer middle frame (mostly omega-shaped, T-shaped and T-shaped) is realized by adopting 1 frame clamping tool, the cost is about 10 ten thousand yuan, and the assembly type frame required by the assembly of the tail section is about 60 ten thousand yuan. It can be seen that the most basic tooling investment for a single tail section is up to 100 ten thousand yuan, and the field needs at least 120 square meters, which results in a huge expense investment. In particular, in the model pre-grinding stage, the control cost and the field significance are great, and the development of flexible assembly type frames and process design is imperative. The traditional riveting assembly type frame generally only can realize assembly on the frame of the cabin body, but cannot realize assembly of the end frame and the middle frame, is difficult to be compatible in the height direction, has poor safety because an inner personnel operation surface is realized in a bracket and other forms, and is difficult to adapt to assembly of cabins with different heights. No description or report of similar technology is found at present, and similar data at home and abroad are not collected. Disclosure of Invention Aiming at the defects in the prior art that the demand number of riveting cabin manufacturing tools is large, the occupied area of a site is large, the flexibility of an assembly type frame is poor, the investment of development cost is large and the like in the carrier rocket model pre-grinding stage, the invention aims to provide the flexible assembly type frame and the assembly method for the carrier rocket cabin, the assembly of an end frame, a middle frame and the cabin can be completed through one assembly type frame, and the flexible assembly requirements of cabin products with different heights and the convenient safety requirements of operation can be met. The invention provides a flexible assembly frame for a cabin body of a carrier rocket, which comprises an upper disc, a supporting disc, a support arm, a transition cylinder, a joint, a pedal, a foundation cylinder and a lower disc, wherein the transition cylinder is connected to the foundation cylinder, one end of the transition cylinder is connected to the lower disc, the other end of the transition cylinder is connected to the bottom of the supporting disc, the top of the supporting disc is connected with the upper disc, the side walls of the supporting disc and the transition cylinder are respectively connected to the foundation cylinder, the pedal is respectively connected with the transition cylinder and the foundation cylinder, the joint is arranged on the support arm, the foundation cylinder and the joint are connected to the lower disc, the bottom of the lower disc is fixed on the ground, and assembly of cabin body components is realized through the upper disc, the support arm, the joint and the lower disc. In some embodiments, the upper disc comprises a disc body, an upper stop block and hanging rings, wherein the upper stop block is circumferentially arranged on the disc body, a connecting plate position line is carved on the disc body, and the hanging rings are uniformly distributed on the disc body; The tray body, the upper stop block and the cabin upper end frame assembly are assembled, and the upper tray and the cabin upper end frame are hoisted through the hoisting ring. In some embodiments, the bottom wall includes a platform, a lower stop, a groove, and a first positioning block, where t