Riveting and drilling tool for end frame

Abstract

The utility model relates to the technical field of rocket assembly, and discloses an end frame riveting and drilling tool which comprises a platform, a plurality of pin holes are formed in the middle of the top wall of the platform at equal intervals, the tops of the pin holes are fixedly connected with a bottom plate, the top of the bottom plate is fixedly connected with a support, the top of the support is fixedly connected with a limiting block, and the limiting block is fixedly connected with the top of the platform. The top of the limiting block is fixedly connected with an arc-shaped block, the top of the arc-shaped block is provided with a half frame, the front end and the rear end of the half frame are fixedly connected with connecting plates, the top of the half frame is provided with a drill plate, positioning drill holes are formed in the middle of the top of the drill plate at equal intervals, and drill sleeves are fixedly connected into the positioning drill holes. According to the utility model, the bottom plate is fixed at the top of the platform through the pin holes, the position of the half frame is fixed by utilizing the arc-shaped blocks, and the drill plate is used for determining the position of positioning and drilling, so that the problems that the drilling precision cannot meet the requirement and the assembly accuracy is influenced due to inaccurate positioning parts are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of rocket assembly, in particular to an end frame riveting and drilling tool. Background Art

[0002] The end frame is a key part of the rocket body structure. It exists at the end of each stage of the rocket body. During the rocket launch process, the end frame has to withstand huge axial pressure, bending moment and vibration loads during launch. The manufacturing precision of the rocket's end frame is extremely high. It is made of lightweight and high-strength composite materials to meet the requirements of reducing weight and improving structural performance during rocket launch.

[0003] When producing the end frame, drilling is required, and auxiliary drilling tooling is needed. This will use an end frame riveting drilling tool. The drilling tooling can control the drilling accuracy within a very small tolerance range to ensure the accuracy of subsequent assembly.

[0004] In the prior art, positioning drilling is performed through a drill sleeve inside the tooling. However, since the design datum of the positioning component does not match the actual processing datum, the dimensional tolerance and roundness of the entire end frame cannot be guaranteed, so that the drilling accuracy does not meet the use requirements, affecting the accuracy of subsequent end frame assembly. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides an end frame riveting drilling tool, which aims to improve the problem in the existing technology that the drilling accuracy does not meet the requirements due to the mismatch between the design datum of the positioning component and the actual processing datum, thereby affecting the accuracy of the end frame assembly.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: an end frame riveting and drilling tool, comprising a platform, a plurality of pin holes are equidistantly opened in the middle of the top wall of the platform, the top of the pin holes is fixedly connected to a base plate, the top of the base plate is fixedly connected to a support, the top of the support is fixedly connected to a limiting block, the top of the limiting block is fixedly connected to an arc block, a half frame is provided on the top of the arc block, the front and rear ends of the half frame are fixedly connected to connecting plates, a drilling template is provided on the top of the half frame, positioning drill holes are equidistantly opened in the middle of the top of the drilling template, and a drill sleeve is fixedly connected to the inside of the positioning drill hole.

[0007] As a further description of the above technical solution:

[0008] The bottom of the platform is fixedly connected with a plurality of fixing plates at equal intervals, the front and rear ends of the fixing plates are fixedly connected with support plates, the front and rear sides of the fixing plates are provided with circular holes, and the bottom of the fixing plates is fixedly connected with a fixing disk.

[0009] As a further description of the above technical solution:

[0010] A plurality of bolt holes are equidistantly formed on the bottom of the fixing plate, and connecting pins are fixedly connected inside the bolt holes.

[0011] As a further description of the above technical solution:

[0012] The bottom of the connecting pin is fixedly connected to a connecting piece 1, and the bottom of the connecting piece 1 is fixedly connected to a supporting leg.

[0013] As a further description of the above technical solution:

[0014] A second connecting piece is fixedly connected to the bottom of the supporting leg, and a plurality of positioning holes are equidistantly formed on the outer wall of the second connecting piece.

[0015] As a further description of the above technical solution:

[0016] A plurality of connection holes are equidistantly formed on the top wall of the platform near the edge.

[0017] As a further description of the above technical solution:

[0018] The top of the positioning hole is threadedly connected with a bolt, and the bottom of the bolt is threadedly connected with a nut.

[0019] As a further description of the above technical solution:

[0020] The outer wall of the platform is provided with a rubber ring, and the rubber ring is engaged with the platform.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the base plate is fixed to the top of the platform by pin holes, the position of the half frame is fixed by arc blocks, the position of the positioning drill hole is determined by the drill template, and the drill sleeve is used to reduce wear and maintain the position of the positioning drill hole for a long time, which effectively solves the problem that the drilling accuracy does not meet the requirements due to inaccurate positioning components, affecting the assembly accuracy.

[0023] 2. In the present invention, the platform and the fixed plate are connected by the action of the fixing plate and the supporting plate, so that the force during drilling is diffused to the fixing plate and the supporting plate, reducing the damage caused to the platform and the fixed plate by the impact force during drilling, and extending the service life of the drilling tooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional diagram of an end frame riveting and drilling tooling proposed by the utility model;

[0025] Figure 2 This is a front view of an end frame riveting and drilling tooling proposed by the utility model;

[0026] Figure 3 This is an exploded view of an end frame riveting and drilling tooling proposed in the utility model;

[0027] Figure 4 This is an exploded view of the local structure of an end frame riveting and drilling tooling proposed by the utility model;

[0028] Figure 5 This is a partial structural breakdown diagram of an end frame riveting and drilling tooling proposed in the utility model.

[0029] Legend:

[0030] 1. Platform; 2. Support legs; 3. Pin holes; 4. Bottom plate; 5. Support; 6. Limit block; 7. Arc block; 8. Half frame; 9. Connecting plate; 10. Drill template; 11. Positioning drill hole; 12. Drill sleeve; 13. Fixing plate; 14. Support plate; 15. Round hole; 16. Fixing plate; 17. Bolt hole; 18. Connecting pin; 19. Connecting plate 1; 20. Connecting plate 2; 21. Positioning hole; 22. Connecting hole; 23. Bolt; 24. Nut; 25. Rubber ring. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Reference Figure 1 、 Figure 4 and Figure 5 The utility model provides an embodiment: an end frame riveting and drilling tool, including a platform 1, a plurality of pin holes 3 are equidistantly opened in the middle of the top wall of the platform 1, the top of the pin hole 3 is fixedly connected to the bottom plate 4, the top of the bottom plate 4 is fixedly connected to the support 5, the top of the support 5 is fixedly connected to the limiting block 6, the limiting block 6 is supported by the support 5, the bottom plate 4 is fixed to the top of the platform 1 by the pin hole 3, the top of the limiting block 6 is fixedly connected to the arc block 7, the top of the arc block 7 is provided with a half frame 8, the front and rear ends of the half frame 8 are A connecting plate 9 is fixedly connected, and a drilling template 10 is provided on the top of the half frame 8. Positioning holes 11 are equidistantly opened in the middle of the top of the drilling template 10. The drilling template 10 and the positioning holes 11 on its top are used to establish the drilling position. A drill sleeve 12 is fixedly connected to the inside of the positioning hole 11. The drill sleeve 12 can reduce wear and maintain the accuracy of the positioning hole 11 for a long time. A plurality of bolt holes 17 are equidistantly opened on the bottom of the fixing plate 16. Connecting pins 18 are fixedly connected to the inside of the bolt holes 17, and the connecting pins 18 are installed on the temporal part of the bolt holes 17.

[0033] Specifically, in the process of drilling the end frame, it is first necessary to remove the drilling template 10 on the tooling, place the half frame 8 on the top of the arc block 7, and perform preliminary pre-assembly to ensure that the outer surface of the end frame fits the arc surface of the arc block 7 to achieve the best assembly effect, and remove the excess material to ensure the accuracy and quality of the assembly. The connecting plate 9 splices the two half frames 8 into a complete end frame. During the riveting process, it is necessary to ensure that the connection between the connecting plate 9 and the half frame 8 is firm and reliable to ensure the structural strength and stability of the entire end frame. After the riveting is completed, the drilling template 10 and the limit block 6 are connected to ensure that the end frame can be maintained in the subsequent hole making process. Maintain stability, thereby ensuring the size and position accuracy of the hole. Through precise positioning and fixation, any deviation in the hole making process can be effectively avoided, ensuring that each hole can be accurately drilled at the correct position. The hole making end face of the end frame is facing upward, and the size and position accuracy of the hole are further ensured through the joint action of the drilling template 10 and the positioning drilling hole 11. By using the drill sleeve 12, wear is effectively reduced, thereby permanently maintaining the position of the hole, and obtaining an end frame product with complete structure and precise hole position. The fixing plate 16 and the bottom parts are assembled through the action of the bolt hole 17 and the connecting pin 18 therein, so as to achieve the effect of rapid assembly.

[0034] Reference Figure 1 、 Figure 3 and Figure 4 , the bottom of the platform 1 is fixedly connected with a plurality of fixing plates 13 at equal intervals, the front and rear ends of the fixing plates 13 are fixedly connected with support plates 14, the front and rear sides of the fixing plates 13 are provided with circular holes 15, the bottom of the fixing plates 13 is fixedly connected with a fixing disk 16, the fixing plates 13 are reinforced by the support plates 14, and the fixing plates 13 are used to connect the platform 1 and the fixing disk 16; the bottom of the connecting pin 18 is fixedly connected with a connecting plate 19, and the bottom of the connecting plate 19 is fixedly connected with a support leg 2, which supports the entire drilling tooling;

[0035] Specifically, before performing the end frame drilling operation, the support plate 14 is fixedly connected to the two ends of the inner part of the fixing plate 13 to provide effective support for the fixing plate 13, ensuring that it can remain stable during the drilling process. The fixing plate 13 can play its connecting role, combining the platform 1 and the fixed plate 16 together, thereby enhancing the overall stability. The circular hole 15 pre-opened inside the fixing plate 13 is used to disperse the impact force generated during the drilling process, significantly reducing the negative impact of the drilling operation on the platform 1 and the fixed plate 16, thereby effectively extending the service life of the drilling tooling and ensuring the efficiency and safety of the operation. The support leg 2 and the fixed plate 16 are connected through the connecting plate 19, and the drilling tooling is supported by the support leg 2 to improve the stability during the working process.

[0036] Reference Figure 1 and Figure 2 The bottom of the leg 2 is fixedly connected with a connecting piece 20, and a plurality of positioning holes 21 are evenly spaced on the outer wall of the connecting piece 20. The leg 2 and the bottom parts are installed through the connecting piece 20; the top of the positioning hole 21 is threadedly connected with a bolt 23, and the bottom of the bolt 23 is threadedly connected with a nut 24, and the bolt 23 and the nut 24 are used to achieve quick disassembly and installation;

[0037] Specifically, the support leg 2 and the bottom accessory can be connected through the positioning hole 21 opened on the outer wall of the second connecting piece 20, and the bolts 23 and nuts 24 are used to achieve quick installation and disassembly.

[0038] Reference Figure 2 and Figure 4 The top wall of the platform 1 is provided with a plurality of connection holes 22 at equal intervals near the edge; the outer wall of the platform 1 is provided with a rubber ring 25, which is engaged with the platform 1. The installation of the rubber ring 25 can effectively reduce the negative impact of collision and impact on the drilling tooling and reduce the possibility of displacement;

[0039] Specifically, the connection holes 22 opened on the top of the platform 1 can realize the connection between the components, and the rubber ring 25 can reduce the problem of component displacement caused by impact during the assembly process, thereby improving the accuracy of drilling.

[0040] Working principle: During the process of drilling holes in the end frame, first remove the drilling template 10 of the tooling, place the half frame 8 on the top of the arc block 7 for pre-assembly, make the outer surface of the end frame and the arc surface of the arc block 7 close together, cut off the excess, rivet the half frame 8 and the connecting plate 9, and splice the two half frames 8 into a complete end frame through the action of the connecting plate 9. After the riveting is completed, connect the drilling template 10 and the limit block 6, turn the end frame over so that the end face of the hole faces upward, and ensure the hole size and position accuracy through the drilling template 10 and the positioning drill hole 11. The wear is reduced by the drill sleeve 12 to maintain the position of the hole for a long time. The manufacturing precision of the rocket's end frame is extremely high, and lightweight, high-strength, high-performance metal materials are used to meet the requirements of reducing weight and improving structural performance during rocket launch;

[0041] Before drilling the end frame, the support plate 14 is fixedly connected to the two ends of the inner part of the fixing plate 13 to support the fixing plate 13. The platform 1 and the fixed plate 16 are connected through the fixing plate 13. The circular hole 15 opened inside the fixing plate 13 is used to disperse the impact force caused by drilling, reduce the impact on the platform 1 and the fixed plate 16, and extend the service life of the drilling tooling.

[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An end frame riveting and drilling tool, comprising a platform (1), characterized in that: A plurality of pin holes (3) are equidistantly provided in the middle of the top wall of the platform (1), the top of the pin holes (3) is fixedly connected to a base plate (4), the top of the base plate (4) is fixedly connected to a support (5), the top of the support (5) is fixedly connected to a limit block (6), the top of the limit block (6) is fixedly connected to an arc block (7), a half frame (8) is provided on the top of the arc block (7), the front and rear ends of the half frame (8) are fixedly connected to a connecting plate (9), a drilling template (10) is provided on the top of the half frame (8), positioning drill holes (11) are equidistantly provided in the middle of the top of the drilling template (10), and a drill sleeve (12) is fixedly connected inside the positioning drill hole (11).

2. The end frame riveting and drilling tool according to claim 1, characterized in that: The bottom of the platform (1) is fixedly connected to a plurality of fixing plates (13) at equal intervals, the front and rear ends of the fixing plates (13) are fixedly connected to support plates (14), the front and rear sides of the fixing plates (13) are provided with circular holes (15), and the bottom of the fixing plates (13) is fixedly connected to a fixing plate (16).

3. The end frame riveting and drilling tool according to claim 2, characterized in that: The bottom of the fixing plate (16) is provided with a plurality of bolt holes (17) at equal intervals, and the interior of the bolt holes (17) is fixedly connected with a connecting pin (18).

4. The end frame riveting and drilling tool according to claim 3, characterized in that: The bottom of the connecting pin (18) is fixedly connected to a connecting piece 1 (19), and the bottom of the connecting piece 1 (19) is fixedly connected to a supporting leg (2).

5. The end frame riveting and drilling tool according to claim 4, characterized in that: A second connecting piece (20) is fixedly connected to the bottom of the supporting leg (2), and a plurality of positioning holes (21) are equidistantly formed on the outer wall of the second connecting piece (20).

6. The end frame riveting and drilling tool according to claim 1, characterized in that: The top wall of the platform (1) is provided with a plurality of connection holes (22) at equal intervals near the edge.

7. The end frame riveting and drilling tool according to claim 5, characterized in that: The top of the positioning hole (21) is threadedly connected to a bolt (23), and the bottom of the bolt (23) is threadedly connected to a nut (24).

8. The end frame riveting and drilling tool according to claim 1, characterized in that: The outer wall of the platform (1) is provided with a rubber ring (25), and the rubber ring (25) is engaged with the platform (1).

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