Solid rocket engine grain component curing and temporary storage device

Abstract

The invention belongs to the technical field of aerospace, and particularly relates to a solid rocket engine grain assembly curing and temporary storage device. Comprising a curing frame fixing unit, a curing frame moving unit and grain clamping and fixing units, the curing frame moving unit is provided with a plurality of sets of grain clamping and fixing units, and the grain clamping and fixing units are used for clamping and fixing grain assemblies of the solid rocket engine; the curing frame moving unit is used for transferring and conveying the grain assemblies; the curing frame fixing unit is fixed relative to the ground, and the curing frame moving unit can enter and exit from the curing frame fixing unit. And after entering the curing frame fixing unit, the curing frame moving unit is locked, so that curing and temporary storage of the assembled grain component are realized. The device is used for curing and temporary storage of the assembled solid rocket engine grain assembly, positioning, clamping and fixing and multi-station simultaneous curing of the grain assembly can be achieved, and the problem that after the grain assembly is bonded, bonding is not reliable due to lack of positioning and fixing is effectively solved.

Description

Technical Field

[0001] This invention belongs to the field of aerospace technology, and specifically relates to a solid rocket motor propellant grain assembly solidification and temporary storage device. Background Technology

[0002] In the assembly process of solid rocket motor propellant grains, the curing process after bonding is a crucial step in ensuring structural reliability. Traditional processes typically employ natural curing or simple bracket fixation after bonding, which suffers from several drawbacks. These include a lack of precise positioning and clamping mechanisms, leading to component displacement or detachment before the adhesive has cured, resulting in substandard bond strength. Furthermore, the curing space utilization is low, hindering multi-station parallel processing and impacting production efficiency. Transferring cured components relies on manual handling, which is difficult in confined spaces or complex conditions, posing safety risks. While some existing fixing devices exist, they generally suffer from complex structures, poor adaptability, and maintenance difficulties, failing to meet the engineering requirements of high reliability, modularity, and spatial scalability. Therefore, a specialized device is urgently needed that combines precise positioning, multi-station collaborative curing capabilities, and flexible mobility. Summary of the Invention

[0003] To address the aforementioned problems, the present invention aims to provide a solid rocket motor propellant grain assembly solidification and temporary storage device, thereby solving the problems of complex structure, poor adaptability, and difficult maintenance of existing fixing devices.

[0004] The objective of this invention is achieved through the following technical solution:

[0005] This invention provides a solid rocket motor propellant assembly curing and temporary storage device, including a curing rack fixing unit, a curing rack moving unit, and a propellant clamping and fixing unit. The curing rack moving unit is equipped with multiple sets of propellant clamping and fixing units, which are used for clamping and fixing the propellant assembly of the solid rocket motor. The curing rack moving unit is used for the transfer and transportation of the propellant assembly. The curing rack fixing unit is fixed relative to the ground, and the curing rack moving unit can enter and exit the curing rack fixing unit. When the curing rack moving unit enters the curing rack fixing unit, it is locked to realize the curing and temporary storage of the propellant assembly after assembly.

[0006] The curing rack moving unit includes a proximity switch, a moving unit bracket, casters, a moving frame, guide components, and roller assemblies. The casters are located at the bottom of the moving unit bracket, and the moving frame is located at the top of the moving unit bracket. Roller assemblies are located on both sides of the upper part of the moving unit bracket, and the roller assemblies are in rolling contact with the curing rack fixing unit. The bottom of the moving frame is provided with multiple sets of guide components, each corresponding to one of the drug cartridge clamping and fixing units. Each guide component has a proximity switch on one side. The proximity switches and guide components work together to control the automatic centering and clamping and fixing of the drug cartridge clamping and fixing unit on the drug cartridge assembly.

[0007] The guiding assembly includes a guide seat and two guide seat limiting supports respectively disposed on opposite sides of the guide seat. The two guide seat limiting supports are used for radial positioning of the guide seat. The guide seat has a slot on its side, and the proximity switch is facing the slot. When the dart assembly enters the guide seat, the proximity switch is triggered.

[0008] One end of the movable frame is provided with a movable handle; the movable frame is provided with a fixed pin guide seat and a fixed pin inserted into the guide hole of the fixed pin guide seat, and the fixed pin is used for positioning between the movable frame and the curing frame fixing unit.

[0009] An electromagnetic valve box is installed on the bottom outer side of the movable frame. The electromagnetic valve box is used to control the drug cartridge clamping and fixing unit.

[0010] The top of the curing rack moving unit is provided with multiple sets of parallel guide rail assemblies, and each guide rail assembly is provided with multiple sets of the drug cartridge clamping and fixing units.

[0011] The drug cartridge clamping and fixing unit includes clamping components, clamping fingers, a cylinder mounting plate, and a cylinder. The cylinder mounting plate is fixed to the top of the curing rack moving unit. The cylinder is mounted on the cylinder mounting plate, and clamping fingers are respectively installed on the two protruding ends of the cylinder. The two clamping fingers are respectively connected to the two clamping components. The bottom of the two clamping components is slidably connected to the guide rail assembly. The cylinder extends and retracts to drive the two clamping components to open or close.

[0012] The clamping assembly includes a clamping block, a clamping block mounting plate, a slider, and a slider seat. The clamping block mounting plate is mounted on the slider seat, and the bottom of the slider seat is provided with a slider that slides in cooperation with the guide rail assembly. The clamping block is mounted on the front of the clamping block mounting plate, and the clamping block has a clamping surface with an arc-shaped groove structure.

[0013] The front of the clamping block mounting plate is provided with a dovetail groove, and the back of the clamping block is provided with a dovetail structure that mates with the dovetail groove of the clamping block mounting plate.

[0014] The curing rack fixing unit includes roller guide rails, guide rail mounting plates, fixing unit frame, feet, and expansion bolts. The bottom of the fixing unit frame is provided with four feet, and each foot is provided with an expansion bolt for connecting to the ground. Guide rail mounting plates are installed on both sides of the top of the fixing unit frame, and roller guide rails are installed on the inner side of the guide rail mounting plates.

[0015] The fixed unit frame is a U-shaped structure with one end open in the horizontal direction, which facilitates the entry and exit of the curing rack moving unit; both the closed end and the open end of the fixed unit frame are provided with blocks for limiting the movement of the curing rack moving unit; the fixed unit frame is provided with fixing pin hole brackets on both sides for locking the curing rack moving unit.

[0016] A protective cover is installed on the outside of the guide rail mounting plate.

[0017] The advantages and positive effects of this invention are as follows: This invention provides a solid rocket motor propellant grain assembly curing and temporary storage device for the curing and temporary storage of solid rocket motor propellant grain assemblies after assembly. It can realize the positioning, clamping and fixing of the propellant grain assembly, as well as simultaneous curing at multiple stations, effectively solving the problem of unreliable bonding caused by the lack of positioning and fixing after the propellant grain assembly is bonded. This invention has advantages such as modular composition, simple structure, compact layout, high reliability, and easy maintenance.

[0018] This invention discloses a solid rocket motor propellant grain assembly curing and temporary storage device, which adopts a combined design of a curing rack moving unit and a curing rack fixing unit. This design allows for expansion and contraction in confined spaces, meeting both the batch curing needs of standard workstations and the flexible operation requirements of confined spaces or special working conditions. When machine operation is inconvenient, the cured propellant grain assembly can be transferred to a more easily accessible location via the curing rack moving unit.

[0019] This invention employs a dual safety mechanism of eccentric roller locking and fixing pins to ensure the stability of the device during the curing process, providing a safe and reliable curing environment for the drug cartridge assembly.

[0020] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings.

[0021] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0023] Figure 1 This is a schematic diagram of the solid rocket motor propellant grain assembly solidification and temporary storage device of the present invention;

[0024] Figure 2 This is a schematic diagram of the curing rack moving unit in this invention;

[0025] Figure 3 This is a schematic diagram of the curing rack fixing unit in this invention;

[0026] Figure 4 This is a schematic diagram of the structure of the medicine column clamping and fixing unit in this invention.

[0027] Wherein: 1 is the curing rack moving unit; 2 is the drug cartridge clamping and fixing unit; 3 is the curing rack fixing unit; 4 is the moving handle; 5 is the upper limit seat plate; 6 is the guide seat; 7 is the guide seat limit support; 8 is the proximity switch; 9 is the proximity switch seat; 10 is the limit baffle; 11 is the moving unit bracket; 12 is the caster wheel; 13 is the solenoid valve box; 14 is the eccentric roller; 15 is the fixed pin guide seat; 16 is the fixed pin; 17 is the lower limit... 18 is the base plate; 19 is the guide rail; 20 is the support column; 21 is the protective cover; 22 is the roller guide rail; 23 is the guide rail mounting plate; 24 is the stop block; 25 is the stop block bracket; 26 is the fixing pin hole bracket; 27 is the fixing unit frame; 28 is the foot; 29 is the expansion bolt; 30 is the clamping block; 31 is the bushing; 32 is the clamping finger; 33 is the cylinder mounting plate; 34 is the cylinder; 35 is the slider; 36 is the slider seat. Detailed Implementation

[0028] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0029] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0030] In the assembly process of solid rocket motor propellant grain assemblies, if the assemblies are placed or stacked haphazardly after bonding, the adhesive may not have cured, leading to positioning misalignment, weak bonding, or detachment between the assemblies. To address these issues, this invention provides a solid rocket motor propellant grain assembly curing and temporary storage device, which enables positioning, clamping, and simultaneous curing of the propellant grain assemblies at multiple stations. See also... Figure 1 As shown, the solid rocket motor propellant assembly curing and temporary storage device includes a curing rack fixing unit 3, a curing rack moving unit 1, and a propellant clamping and fixing unit 2. The curing rack moving unit 1 is equipped with multiple sets of propellant clamping and fixing units 2, which are used to clamp and fix the propellant assembly of the solid rocket motor. The curing rack moving unit 1 is used for the transfer and transportation of the propellant assembly. The curing rack fixing unit 3 is fixed relative to the ground, and the curing rack moving unit 1 can enter and exit the interior of the curing rack fixing unit 3. When the curing rack moving unit 1 enters the curing rack fixing unit 3, it is locked to realize the curing and temporary storage of the propellant assembly after assembly.

[0031] See Figure 2As shown in the embodiment of the present invention, the curing rack moving unit 1 includes a proximity switch 8, a moving unit support 11, casters 12, a moving frame, guide components, and roller components. Casters 12 are installed on the bottom surfaces of the four legs of the moving unit support 11, providing the curing rack moving unit 1 with the ability to move. A moving frame is provided at the top of the moving unit support 11, and roller components are provided on both sides of the top of the moving unit support 11. The roller components are in rolling contact with the curing rack fixing unit 3. Multiple sets of guide components are provided at the bottom of the moving frame, each corresponding to one of the drug column clamping and fixing units 2. A proximity switch 8 is provided on one side of each guide component. The proximity switch 8 and the guide components work together to control the automatic centering and precise positioning of the drug column clamping and fixing unit 2 on the drug column components, ensuring reliable clamping and fixing effects for components of different sizes.

[0032] Specifically, the movable frame is a cuboid frame, including an upper limit seat plate 5, a lower limit seat plate 17, and four support columns 19 connecting the upper limit seat plate 5 and the lower limit seat plate 17. The four support columns 19 are respectively installed at the four corner points of the lower limit seat plate 17, and multiple sets of guide components are disposed on the lower limit seat plate 17. The roller assembly includes multiple sets of eccentric rollers 14 symmetrically arranged on both sides of the top of the movable unit bracket 11.

[0033] In an embodiment of the present invention, the guiding assembly includes a guide seat 6 disposed on the lower limit seat plate 17 and two guide seat limiting supports 7 respectively disposed on opposite sides of the guide seat 6. The two guide seat limiting supports 7 are used for radial positioning of the guide seat 6, and the guide seat 6 has a slot on its side. A proximity switch 8 is disposed on the lower limit seat plate 17 via a proximity switch seat 9, and the proximity switch 8 is directly facing the slot of the guide seat 6; when the dart assembly enters the guide seat 6, the proximity switch 8 is triggered.

[0034] Furthermore, a fixed pin guide seat 15 and a fixed pin 16 inserted into the guide hole of the fixed pin guide seat 15 are provided on both sides of one end of the lower limit seat plate 17. The fixed pin 16 is used for positioning between the moving frame and the curing frame fixing unit 3. A moving handle 4 is provided at one end of the moving frame along its length. An electromagnetic valve box 13 is provided on the outer bottom of the moving frame. The electromagnetic valve box 13 is used to control the drug column clamping fixing unit 2. A limit baffle 10 is installed on the inner front end of the moving unit bracket 11.

[0035] See Figure 3As shown in the embodiment of the present invention, the curing rack fixing unit 3 includes a roller guide rail 21, a guide rail mounting plate 22, a fixing unit frame 26, feet 27, and expansion bolts 28. The bottom of the fixing unit frame 26 is provided with four feet 27, and each foot 27 is provided with an expansion bolt 28 for connecting to the ground. The top two sides of the fixing unit frame 26 are equipped with guide rail mounting plates 22. The roller guide rail 21 is installed on the inner side of the guide rail mounting plate 22, and the outer side of the guide rail mounting plate 22 is equipped with a protective cover 20. The eccentric roller 14 cooperates with the roller guide rail 21.

[0036] Furthermore, the fixed unit frame 26 is a U-shaped structure with one end open in the horizontal direction, having a closed end and an open end, which facilitates the entry and exit of the curing rack moving unit 1; both the closed end and the open end of the fixed unit frame 26 are provided with a stop block 23 for limiting the curing rack moving unit 1; both sides of the fixed unit frame 26 are provided with a fixing pin hole bracket 25 for locking the curing rack moving unit 1; the fixing pin 16 on the moving frame is inserted into the pin hole on the corresponding fixing pin hole bracket 25 to lock the curing rack moving unit 1 and the curing rack fixed unit 3.

[0037] Specifically, the stop 23 is made of flexible rubber. Two stop 23s are installed inside the closed end of the fixed unit frame 26, and one stop 23 is installed on the right-side stop bracket 24 of the open end of the fixed unit frame 26. When the curing rack moving unit 1 is pushed into the curing rack fixing unit 3, the two stop 23s located inside the closed end of the fixed unit frame 26 provide a limit for the curing rack moving unit 1; the stop 23 located on the right-side stop bracket 24 of the open end of the fixed unit frame 26 provides a limit for the curing rack moving unit 1 when it is moved out of the curing rack fixing unit 3. When the curing rack moving unit 1 is moved out, the limiting baffle 10 on the moving unit bracket 11 contacts the stop 23 located on the right-side stop bracket 24 of the open end of the fixed unit frame 26, preventing the curing rack moving unit 1 from being dragged out and separated from the curing rack fixing unit 3. When curing is complete and the curing rack moving unit 1 needs to be completely removed, the contact limit baffle 10 limits the curing rack moving unit 1 to be completely removed from the curing rack fixing unit 3, and pushes the curing rack moving unit 1 to the next process.

[0038] See Figure 2 As shown in the embodiment of the present invention, multiple sets of parallel guide rail assemblies are provided above the upper limit seat plate 5, and multiple sets of drug cartridge clamping and fixing units 2 are provided on each guide rail assembly. Specifically, each guide rail assembly includes two parallel guide rails 18.

[0039] See Figure 4As shown, in this embodiment of the invention, the drug cartridge clamping and fixing unit 2 includes clamping components, clamping fingers 32, a cylinder mounting plate 33, and a cylinder 34. The cylinder mounting plate 33 is fixed to the top of the upper limit seat plate 5 of the curing rack moving unit 1. The cylinder 34 is mounted on the cylinder mounting plate 33, and clamping fingers 32 are respectively installed on the two protruding ends of the cylinder 34. The two clamping fingers 32 are respectively connected to two clamping components. The bottom of the two clamping components is slidably connected to the guide rail 18. The cylinder 34 extends and retracts to drive the two clamping components to open or close. The slider 35 is constrained by the guide rail 18, which makes the opening and closing movement more stable and maintains the stability of the axis of the drug cartridge clamping and fixing unit 2. When the proximity switch 8 is triggered, the control cylinder 34 retracts to complete the clamping and fixing of the drug cartridge components. Specifically, the proximity switch 8 and the cylinder 34 are commercially available products.

[0040] In embodiments of the present invention, the clamping assembly includes a clamping block 29, a clamping block mounting plate 31, a slider 35, and a slider seat 36. The clamping block mounting plate 31 has a mounting hole on each of its left and right sides, and a bushing 30 passes through the mounting hole on the clamping block mounting plate 31 to engage with the slider seat 36. The bottom of the slider seat 36 is fitted with the slider 35, which slides in cooperation with the guide rail 18. The clamping block 29 is mounted on the front of the clamping block mounting plate 31, and the clamping block 29 has a clamping surface with an arc-shaped groove structure.

[0041] Furthermore, the front of the clamping block mounting plate 31 is provided with a dovetail groove, and the back of the clamping block 29 is provided with a dovetail structure that mates with the dovetail groove of the clamping block mounting plate 31.

[0042] In this embodiment, four guide rails 18 are sequentially installed on the upper surface of the upper limit seat plate 5. Ten sets of propellant clamping and fixing units 2 are arranged on the upper limit seat plate 5, enabling simultaneous curing of ten propellant assemblies. Ten guide seats 6 are installed on the lower limit seat plate 17. The guide seats 6 are coaxial with the propellant clamping and fixing units 2, and the guide seats 6 are radially positioned by the guide seat limiting support 7. Twelve eccentric rollers 14 are evenly and symmetrically distributed on both sides of the moving unit bracket 11. This embodiment adopts a modular layout, which can simultaneously adapt to the curing requirements of ten sets of propellant assemblies of different specifications, and can be compatible with the collinear curing tasks of multiple engine propellant assemblies.

[0043] Specifically, the solenoid valve box 13 is equipped with solenoid valves, pressure regulating valves, filters and other components, which are used to control the cylinder 34 in the drug column clamping and fixing unit 2. The solenoid valves, pressure regulating valves, filters and other components are all commercially available products.

[0044] This invention provides a solid rocket motor propellant grain assembly solidification and temporary storage device, the working principle of which is as follows:

[0045] 1. Loading and positioning of the propellant cartridge assembly:

[0046] The operator uses an external clamping tool to place the bonded drug cartridge assemblies one by one into the drug cartridge clamping and fixing unit 2. The drug cartridge assemblies fall into the guide seat 6 under their own weight. The design of the guide seat 6 ensures that the drug cartridge assemblies are automatically centered and prevent displacement. After the drug cartridge assembly enters the guide seat 6, the proximity switch 8 is triggered, and the signal is transmitted to the solenoid valve box 13, which controls the cylinder 34 to act, driving the clamping fingers 32 to close, so that the clamping block 29 firmly clamps the drug cartridge assembly and prevents it from shifting or detaching during the curing process.

[0047] 2. Multi-station synchronous curing:

[0048] The device adopts a modular layout, with ten sets of propellant clamping and fixing units 2 arranged on the upper limit seat plate 5, which can simultaneously cure multiple propellant assemblies, improving production efficiency. During the curing process, the propellant assemblies maintain a stable posture, avoiding uneven curing of the adhesive layer due to external forces or vibrations, and ensuring bonding quality.

[0049] 3. Flexible adjustment of the moving unit:

[0050] When it is necessary to transfer the drug cartridge assembly in a confined space or between different workstations, the operator can push the curing rack moving unit 1 by moving the handle 4 and use the casters 12 at the bottom to move it freely.

[0051] After the curing rack moving unit 1 enters the curing rack fixing unit 3, the fixing pin 16 is inserted into the fixing pin hole bracket 25, and at the same time, the eccentric roller 14 cooperates with the roller guide rail 21 to ensure the stability of the curing rack moving unit 1 during the curing stage.

[0052] 4. Safety limits and protection:

[0053] When the curing rack moving unit 1 is pushed into the curing rack fixing unit 3, the limiting baffle 10 contacts the stop block 23 to prevent excessive movement; the stop block 23, made of flexible rubber, can absorb impact and avoid equipment damage. The protective cover 20 can prevent external dust interference and ensure a stable curing environment.

[0054] 5. Removal after curing:

[0055] After curing is completed, cylinder 34 releases the clamping assembly, and the operator can control the external clamping tool or manually remove the drug cartridge assembly. Alternatively, the constraint of the limit baffle 10 can be released, and the curing rack moving unit 1 can be directly pushed to the next process to achieve efficient flow.

[0056] In summary, this invention provides a solid rocket motor propellant grain assembly curing and temporary storage device for the curing and temporary storage of solid rocket motor propellant grain assemblies after assembly. It enables the positioning, clamping, and simultaneous curing of the propellant grain assemblies at multiple stations, effectively solving the problem of unreliable bonding caused by a lack of positioning and fixation after bonding. This invention has advantages such as modular composition, simple structure, compact layout, high reliability, and easy maintenance. Furthermore, this invention has the ability to be deployed and retracted in confined spaces. When machine operation is inconvenient, the cured propellant grain assembly can be transferred to a more easily accessible position via the curing rack moving unit.

[0057] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A solid rocket motor propellant grain assembly solidification and temporary storage device, characterized in that, It includes a curing rack fixing unit (3), a curing rack moving unit (1), and a propellant clamping and fixing unit (2). The curing rack moving unit (1) is equipped with multiple sets of propellant clamping and fixing units (2). The propellant clamping and fixing units (2) are used for clamping and fixing the propellant assembly of the solid rocket motor. The curing rack moving unit (1) is used for the transfer and transportation of the propellant assembly. The curing rack fixing unit (3) is fixed relative to the ground. The curing rack moving unit (1) can enter and exit the curing rack fixing unit (3). When the curing rack moving unit (1) enters the curing rack fixing unit (3), it is locked to realize the curing and temporary storage of the propellant assembly after assembly.

2. The solid rocket motor propellant grain assembly solidification and temporary storage device according to claim 1, characterized in that, The curing rack moving unit (1) includes a proximity switch (8), a moving unit bracket (11), casters (12), a moving frame, a guide assembly, and a roller assembly. The bottom of the moving unit bracket (11) is provided with casters (12), the top of the moving unit bracket (11) is provided with a moving frame, and the upper two sides of the moving unit bracket (11) are provided with roller assemblies. The roller assemblies are in rolling contact with the curing rack fixing unit (3). The bottom of the moving frame is provided with multiple sets of guide assemblies that correspond one-to-one with each of the drug column clamping and fixing units (2). Each guide assembly is provided with a proximity switch (8) on one side. The proximity switch (8) and the guide assembly work together to control the automatic centering and clamping and fixing of the drug column assembly by the drug column clamping and fixing unit (2).

3. The solid rocket motor propellant grain assembly solidification and temporary storage device according to claim 2, characterized in that, The guide assembly includes a guide seat (6) and two guide seat limiting supports (7) respectively disposed on opposite sides of the guide seat (6). The two guide seat limiting supports (7) are used to radially position the guide seat (6). The guide seat (6) has a slot on its side, and the proximity switch (8) is facing the slot. When the drug assembly enters the guide seat (6), the proximity switch (8) is triggered.

4. The solid rocket motor propellant grain assembly solidification and temporary storage device according to claim 2, characterized in that, One end of the movable frame is provided with a movable handle (4); the movable frame is provided with a fixed pin guide seat (15) and a fixed pin (16) inserted into the guide hole of the fixed pin guide seat (15). The fixed pin (16) is used for positioning between the movable frame and the curing frame fixing unit (3). An electromagnetic valve box (13) is provided on the bottom outer side of the mobile frame. The electromagnetic valve box (13) is used to control the drug column clamping and fixing unit (2).

5. The solid rocket motor propellant grain assembly solidification and temporary storage device according to claim 1, characterized in that, The top of the curing rack moving unit (1) is provided with multiple sets of parallel guide rail assemblies, and each guide rail assembly is provided with multiple sets of the drug cartridge clamping and fixing units (2).

6. The solid rocket motor propellant grain assembly solidification and temporary storage device according to claim 5, characterized in that, The drug cartridge clamping and fixing unit (2) includes clamping components, clamping fingers (32), cylinder mounting plate (33) and cylinder (34). The cylinder mounting plate (33) is fixed on the top of the curing rack moving unit (1). The cylinder (34) is mounted on the cylinder mounting plate (33). The two extended ends of the cylinder (34) are respectively equipped with clamping fingers (32). The two clamping fingers (32) are respectively connected to the two clamping components. The bottom of the two clamping components is slidably connected to the guide rail assembly. The cylinder (34) extends and retracts to drive the two clamping components to open or close.

7. The solid rocket motor propellant grain assembly solidification and temporary storage device according to claim 6, characterized in that, The clamping assembly includes a clamping block (29), a clamping block mounting plate (31), a slider (35), and a slider seat (36). The clamping block mounting plate (31) is mounted on the slider seat (36). The bottom of the slider seat (36) is provided with a slider (35) that slides in cooperation with the guide rail assembly. The clamping block (29) is mounted on the front of the clamping block mounting plate (31). The clamping block (29) has a clamping surface with an arc groove structure.

8. The solid rocket motor propellant grain assembly solidification and temporary storage device according to claim 7, characterized in that, The front of the clamping block mounting plate (31) is provided with a dovetail groove, and the back of the clamping block (29) is provided with a dovetail structure that cooperates with the dovetail groove of the clamping block mounting plate (31).

9. The solid rocket motor propellant grain assembly solidification and temporary storage device according to claim 1, characterized in that, The curing rack fixing unit (3) includes a roller guide rail (21), a guide rail mounting plate (22), a fixing unit frame (26), feet (27) and expansion bolts (28). The bottom of the fixing unit frame (26) is provided with four feet (27), and each foot (27) is provided with an expansion bolt (28) for connecting to the ground. The top two sides of the fixing unit frame (26) are equipped with guide rail mounting plates (22), and the inner side of the guide rail mounting plates (22) is equipped with roller guide rails (21).

10. The solid rocket motor propellant grain assembly solidification and temporary storage device according to claim 9, characterized in that, The fixed unit frame (26) is a U-shaped structure with one end open in the horizontal direction, which facilitates the entry and exit of the curing rack moving unit (1); both the closed end and the open end of the fixed unit frame (26) are provided with a stop (23) for limiting the curing rack moving unit (1); the two sides of the fixed unit frame (26) are provided with fixing pin hole brackets (25) for locking the curing rack moving unit (1); a protective cover (20) is installed on the outside of the guide rail mounting plate (22).

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