Spacecraft fairing forming mold easy to demold

Abstract

The utility model provides an easily demoulded spacecraft fairing forming mould, which belongs to the technical field of fairing moulds, and comprises a base, the top of the base is fixedly connected with a bearing frame, a mounting frame and a track, a constant pressure shaft is rotatably connected in the bearing frame, one end of the constant pressure shaft close to the mounting frame is fixedly connected with a positioning rod, and a driving mechanism is arranged on the bearing frame. A positioning mechanism is arranged at the position, close to the positioning rod, of the mounting frame, a workpiece is arranged between the positioning rod and the positioning mechanism for spinning forming, a displacement mechanism is arranged in the track, a supporting frame is arranged on the upper side of the displacement mechanism, a multi-pressing-wheel mechanism is arranged on the supporting frame, and workpieces of different shapes are formed by extruding the surface of the workpiece. The operation mode is simple and reasonable, the demolding speed is high, machining is easier, the pressing wheels can be designed in a switchable mode, automatic switching can be achieved according to needs, and the machining efficiency is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of fairing moulds, and in particular relates to an easy-to-demold spacecraft fairing forming mould. Background Art

[0002] The spacecraft fairing is one of the key components of a launch vehicle. It is located at the top of the rocket and plays a vital role. The main function of the fairing is to protect the spacecraft inside during the rocket's launch and ensure that it is not damaged in the harsh atmospheric environment.

[0003] The Chinese patent with application number CN202222187548.4 in the prior art discloses a spacecraft fairing forming mold, including a support platform, a support block, a support base plate, a circular support ring, a punch, a die, a horizontal connecting plate, a vertical connecting plate, a stamping machine mounting plate, a punch upper plate, and a push rod. The upper part of the support block is connected to the support platform, and the lower part of the support block is connected to the support base plate. Multiple support blocks are distributed at the four corners of the lower part of the support platform. The lower part of the limit ring is connected to the support base plate. The circular support ring has an inner hole of the circular support ring. The limit ring is adapted to the inner hole of the circular support ring. The limit ring is inserted into the inner hole of the circular support ring. The lower surface of the circular support ring is fitted with the support base plate. The support platform has a punch hole. The punch is adapted to the punch hole. The punch passes through the punch hole. The lower part of the punch has a punch lower ring. The upper surface of the punch lower ring is fitted with the support platform, and the upper surface of the circular support ring is fitted with the punch lower ring.

[0004] The above scheme manufactures the fairing through the upper and lower mold forming method, which has high forming efficiency and relatively stable quality. However, for the fairing structure of the propeller part of the spacecraft, the traditional upper and lower molds are difficult to manufacture, the stamping material is easy to tear, and the manufacturing cost is high. For this reason, we propose a spacecraft fairing forming mold that is easy to demold. Utility Model Content

[0005] The utility model aims to provide a spacecraft fairing forming mold which is easy to demould, aiming to solve the problems raised in the background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A mold for forming a fairing of a spacecraft that is easy to demold comprises a base, a bearing frame, a mounting frame and a track are fixedly connected to the top of the base, a fixed pressure shaft is rotatably connected inside the bearing frame, a positioning rod is fixedly connected to one end of the fixed pressure shaft close to the mounting frame, a driving mechanism is arranged on the bearing frame, a positioning mechanism is arranged on the mounting frame close to the positioning rod, a workpiece is placed between the positioning rod and the positioning mechanism for spin forming, a displacement mechanism is arranged in the track, a support frame is arranged on the upper side of the displacement mechanism, and a multi-pressure wheel mechanism is arranged on the support frame for forming workpieces of different shapes by extruding the surface of the workpiece.

[0008] As a preferred solution of the utility model, the driving mechanism includes a first synchronous wheel, a first motor, a second synchronous wheel and a synchronous belt. The first synchronous wheel is fixedly connected to the other end of the fixed pressure shaft, the first motor is fixedly connected to the lower inner wall of the bearing frame, the second synchronous wheel is fixedly connected to the output end of the first motor, and the synchronous belt transmission is connected between the first synchronous wheel and the second synchronous wheel.

[0009] As a preferred solution of the utility model, the positioning mechanism includes a first electric push rod, an extension rod and a rotary head. The first electric push rod is fixedly connected to a side of the mounting frame away from the bearing frame, the extension rod is fixedly connected to the extended end of the first electric push rod, and the rotary head is rotatably connected to one end of the extension rod close to the positioning rod.

[0010] As a preferred solution of the utility model, the displacement mechanism includes a ball screw, a second motor and a screw sleeve, the ball screw is rotatably connected between the inner walls of the track, the second motor is fixedly connected to one side of the track, the output end of the second motor is fixedly connected to the ball screw, the screw sleeve is slidably connected to the upper side of the track, and the screw sleeve is threadedly connected to the circumferential surface of the ball screw.

[0011] As a preferred solution of the utility model, the side of the support frame is fixedly connected to the second electric push rod, and the extended end of the second electric push rod is fixedly connected to the platform.

[0012] As a preferred solution of the utility model, the multi-pressure wheel mechanism includes a third motor, a triangular rod and multiple pressure wheels, the triangular rod is rotatably connected to the top of the platform, the third motor is fixedly connected to the bottom of the platform, the output end of the third motor is fixedly connected to the triangular rod, and the pressure wheels are respectively rotatably connected to the ends of the triangular rod.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In this solution, the extended end of the second electric push rod pushes the platform to move, so that the pressure wheel contacts the surface of the workpiece, and a fairing structure is formed under the action of spinning. After the molding is completed, the first motor is turned off, and the extended end of the first electric push rod is returned to its original position to complete the demoulding. The operation method is simple and reasonable, the demoulding speed is fast, and it is easier to process. In addition, the pressure wheel can be switched, which can be automatically switched according to needs, effectively improving the processing efficiency.

[0015] 2. This solution drives the ball screw to rotate through the output end of the second motor, then drives the screw sleeve to move, and finally drives the support frame to move linearly, thereby adjusting the position of the multi-pressure wheel mechanism, flexibly adjusting the position, and making the processing more precise. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0017] In the attached picture:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a side view of the utility model;

[0020] Figure 3 This is a structural diagram of the fixed pressure shaft of the utility model;

[0021] Figure 4 This is a diagram of the pressing wheel of the utility model.

[0022] In the figure: 1. base; 2. bearing frame; 3. fixed pressure shaft; 4. positioning rod; 5. first synchronous wheel; 6. first motor; 7. second synchronous wheel; 8. synchronous belt; 9. mounting frame; 10. first electric push rod; 11. extension rod; 12. screw head; 13. track; 14. ball screw; 15. second motor; 16. screw sleeve; 17. support frame; 18. second electric push rod; 19. platform; 20. third motor; 22. triangle rod; 23. pressure wheel. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example

[0025] See also Figure 1-Figure 4 , the technical solution provided by this embodiment is as follows:

[0026] A mold for forming a spacecraft fairing that is easy to demold comprises a base 1. A bearing frame 2, a mounting frame 9 and a track 13 are fixedly connected to the top of the base 1. A fixed pressure shaft 3 is rotatably connected inside the bearing frame 2. One end of the fixed pressure shaft 3 close to the mounting frame 9 is fixedly connected to a positioning rod 4. A driving mechanism is provided on the bearing frame 2. A positioning mechanism is provided on the mounting frame 9 close to the positioning rod 4. A workpiece is placed between the positioning rod 4 and the positioning mechanism for spin forming. A displacement mechanism is provided in the track 13. A support frame 17 is provided on the upper side of the displacement mechanism. A multi-pressure wheel mechanism is provided on the support frame 17. Workpieces of different shapes can be formed by extruding the surface of the workpiece.

[0027] In a specific embodiment of the present invention, the positioning rod 4 and the top screw head 12 are located in a concentric structure and there is a certain distance between them. The end of the positioning rod 4 is provided with a mounting hole, on which different fixing fixtures can be installed to adapt to different workpieces. When in use, the workpiece for manufacturing the fairing is placed between the positioning rod 4 and the top screw head 12, and then the extended end of the first electric push rod 10 is controlled to push the extension rod 11 to move, so that the workpiece is clamped between the top screw head 12 and the positioning rod 4, and then the output end of the first motor 6 is controlled to drive the second synchronous wheel 7 to rotate, and then drive the fixed pressure shaft 3 to rotate at high speed, and finally drive the workpiece to rotate at high speed. At this time, the extended end of the second electric push rod 18 is used to push the platform 19 to move, so that the pressure wheel 23 contacts the surface of the workpiece, and a fairing structure is formed under the action of spinning. After the molding is completed, the first motor 6 is turned off, and the extended end of the first electric push rod 10 is returned to its original position to complete the demoulding. The operation method is simple and reasonable, the demoulding speed is fast, and it is easier to process. In addition, the pressure wheel 23 can be switched, and it can be automatically switched according to needs, effectively improving the processing efficiency.

[0028] Specifically, the driving mechanism includes a first synchronous wheel 5, a first motor 6, a second synchronous wheel 7 and a synchronous belt 8. The first synchronous wheel 5 is fixedly connected to the other end of the fixed pressure shaft 3, the first motor 6 is fixedly connected to the lower inner wall of the bearing frame 2, the second synchronous wheel 7 is fixedly connected to the output end of the first motor 6, and the synchronous belt 8 is transmission-connected between the first synchronous wheel 5 and the second synchronous wheel 7.

[0029] In a specific embodiment of the utility model, both ends of the fixed pressure shaft 3 pass through the bearing frame 2 and extend to both sides. When in use, the second synchronous wheel 7 is driven to rotate through the output end of the first motor 6, and the first synchronous wheel 5 is driven to rotate under the synchronization action of the synchronous belt 8. The first synchronous wheel 5 drives the fixed pressure shaft 3 to rotate, and finally drives the positioning rod 4 to rotate, so as to achieve the purpose of driving the workpiece to rotate.

[0030] Specifically, the positioning mechanism includes a first electric push rod 10, an extension rod 11 and a rotary head 12. The first electric push rod 10 is fixedly connected to the side of the mounting frame 9 away from the bearing frame 2, the extension rod 11 is fixedly connected to the extended end of the first electric push rod 10, and the rotary head 12 is rotatably connected to one end of the extension rod 11 close to the positioning rod 4.

[0031] In a specific embodiment of the utility model, the mounting frame 9 is used to install the first electric push rod 10 and the extension rod 11, and is used to limit the linear movement of the extension rod 11. The extension rod 11 is pushed to move by the extended end of the first electric push rod 10, and the extension rod 11 pushes the screw head 12 to move, thereby adjusting the distance between the screw head 12 and the positioning rod 4 to clamp workpieces of different sizes.

[0032] Specifically, the displacement mechanism includes a ball screw 14, a second motor 15 and a screw sleeve 16. The ball screw 14 is rotatably connected between the inner walls of the track 13, the second motor 15 is fixedly connected to one side of the track 13, the output end of the second motor 15 is fixedly connected to the ball screw 14, the screw sleeve 16 is slidably connected to the upper side of the track 13, and the screw sleeve 16 is threadedly connected to the circumferential surface of the ball screw 14.

[0033] In a specific embodiment of the utility model, the track 13 is used to limit the linear movement of the screw sleeve 16, and the ball screw 14 is driven to rotate through the output end of the second motor 15, and then the screw sleeve 16 is driven to move, and finally the support frame 17 is driven to move linearly, thereby adjusting the position of the multi-pressure wheel mechanism, flexibly adjusting the position, and making the processing more precise.

[0034] Specifically, the side of the support frame 17 is fixedly connected to the second electric push rod 18 , and the extended end of the second electric push rod 18 is fixedly connected to the platform 19 .

[0035] In the specific embodiment of the present utility model, refer to Figure 4 The extended end of the second electric push rod 18 can push the platform 19 to move, and the overall position of the platform 19, the triangular rod 22 and the pressure wheel 23 can be adjusted.

[0036] Specifically, the multi-pressure wheel mechanism includes a third motor 20, a triangular rod 22 and a plurality of pressure wheels 23. The triangular rod 22 is rotatably connected to the top of the platform 19, the third motor 20 is fixedly connected to the bottom of the platform 19, the output end of the third motor 20 is fixedly connected to the triangular rod 22, and the pressure wheels 23 are rotatably connected to the ends of the triangular rod 22 respectively.

[0037] In a specific embodiment of the utility model, the pressure wheel 23 is installed at the end of the triangular rod 22 and can be switched as needed. The triangular rod 22 is driven to rotate by the output end of the third motor 20, and the triangular rod 22 drives the pressure wheel 23 to rotate, thereby switching the pressure wheel 23 and adjusting the contact angle between the pressure wheel 23 and the workpiece for precise processing.

[0038] Working principle: When in use, place the workpiece for manufacturing the fairing between the positioning rod 4 and the screw head 12, then control the extended end of the first electric push rod 10 to push the extension rod 11 to move, so that the workpiece is clamped between the screw head 12 and the positioning rod 4, then control the output end of the first motor 6 to drive the second synchronous wheel 7 to rotate, and then drive the fixed pressure shaft 3 to rotate at high speed, and finally drive the workpiece to rotate at high speed. At this time, the extended end of the second electric push rod 18 pushes the platform 19 to move, so that the pressure wheel 23 contacts the surface of the workpiece, and a fairing structure is formed under the action of spinning. After the molding is completed, turn off the first motor 6, and return the extended end of the first electric push rod 10 to its original position to complete the demoulding. The operation method is simple and reasonable, the demoulding speed is fast, and it is easier to process. In addition, the pressure wheel 23 can be switched, and can be automatically switched according to needs, effectively improving the processing efficiency.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An easy-to-release spacecraft fairing forming mold, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected with a bearing frame (2), a mounting frame (9) and a track (13); a fixed pressure shaft (3) is rotatably connected inside the bearing frame (2); one end of the fixed pressure shaft (3) close to the mounting frame (9) is fixedly connected with a positioning rod (4); a driving mechanism is arranged on the bearing frame (2); a positioning mechanism is arranged near the positioning rod (4) on the mounting frame (9); a workpiece is placed between the positioning rod (4) and the positioning mechanism for spin forming; a displacement mechanism is arranged inside the track (13); a support frame (17) is arranged on the upper side of the displacement mechanism; a multi-pressing wheel mechanism is arranged on the support frame (17); workpieces of different shapes are formed by pressing the surface of the workpiece.

2. The easy-to-release spacecraft fairing forming mold according to claim 1, characterized in that: The driving mechanism comprises a first synchronous wheel (5), a first motor (6), a second synchronous wheel (7) and a synchronous belt (8); the first synchronous wheel (5) is fixedly connected to the other end of the fixed pressure shaft (3); the first motor (6) is fixedly connected to the lower inner wall of the bearing frame (2); the second synchronous wheel (7) is fixedly connected to the output end of the first motor (6); and the synchronous belt (8) is transmission-connected between the first synchronous wheel (5) and the second synchronous wheel (7).

3. The easy-to-release spacecraft fairing forming mold according to claim 2, characterized in that: The positioning mechanism comprises a first electric push rod (10), an extension rod (11) and a screw-on head (12); the first electric push rod (10) is fixedly connected to a side of the mounting frame (9) away from the bearing frame (2); the extension rod (11) is fixedly connected to an extended end of the first electric push rod (10); and the screw-on head (12) is rotatably connected to an end of the extension rod (11) close to the positioning rod (4).

4. The easy-to-release spacecraft fairing forming mold according to claim 3, characterized in that: The displacement mechanism comprises a ball screw (14), a second motor (15) and a screw sleeve (16); the ball screw (14) is rotatably connected between the inner walls of the track (13); the second motor (15) is fixedly connected to one side of the track (13); the output end of the second motor (15) is fixedly connected to the ball screw (14); the screw sleeve (16) is slidably connected to the upper side of the track (13); and the screw sleeve (16) is threadedly connected to the circumferential surface of the ball screw (14).

5. The easy-to-release spacecraft fairing forming mold according to claim 4, characterized in that: The side of the support frame (17) is fixedly connected to the second electric push rod (18), and the extended end of the second electric push rod (18) is fixedly connected to the platform (19).

6. The easy-to-release spacecraft fairing forming mold according to claim 5, characterized in that: The multi-pressing wheel mechanism comprises a third motor (20), a triangular rod (22) and a plurality of press wheels (23); the triangular rod (22) is rotatably connected to the top of the platform (19); the third motor (20) is fixedly connected to the bottom of the platform (19); the output end of the third motor (20) is fixedly connected to the triangular rod (22); and the press wheels (23) are rotatably connected to the ends of the triangular rod (22).

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