A hot forming die for a titanium alloy sheet metal part of a fireproof cover on an airplane

Abstract

The utility model discloses a kind of hot forming mould of fireproof cover titanium alloy sheet metal parts on aircraft, including male die and female die, the male die and female die between placing have material supporting plate, and the surface of material supporting plate is fixedly connected with multiple positioning pins, the both ends of male die are equipped with guide slide plate by hexagon screw, the lower portion of male die is connected with ejector rod, the both sides of male die and female die are fixedly connected with mould handle assembly, and the surface of mould handle assembly is fixedly connected with limiting mechanism. The utility model can adopt hot stretching technology by male die, material supporting plate and female die, according to the appearance of part, design deep drawing forming die, ensure the appearance curvature of part, prevent wrinkling problem, suitable for such fireproof cover titanium alloy sheet metal part forming, improve yield, save production cost, and the internal temperature can be measured by temperature measuring hole.

Description

Technical Field

[0001] This utility model relates to the field of thermoforming mold technology, and in particular to a thermoforming mold for titanium alloy sheet metal parts such as fireproof covers for aircraft. Background Technology

[0002] On aircraft, fireproof cover-type titanium alloy sheet metal parts refer to thin sheet metal components of titanium alloy used for fire isolation, high temperature protection, or protection of critical systems. These parts play an important role in the aviation field and must meet stringent requirements such as high strength, high temperature resistance, corrosion resistance, and lightweight. Titanium alloy fireproof cover sheet metal parts on aircraft are safety-critical components, and their design and manufacturing must balance material properties, process feasibility, and airworthiness compliance.

[0003] Existing titanium alloy sheet metal parts are processed using thermoforming molds. However, these fireproof cap-shaped titanium alloy sheet metal parts have small bending angles, high difficulty coefficients, and are prone to wrinkles during forming, resulting in a very high scrap rate and greatly increasing production costs. To address these issues, we propose a thermoforming mold for aircraft fireproof cap-type titanium alloy sheet metal parts. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a thermoforming mold for titanium alloy sheet metal parts such as fireproof covers for aircraft.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A thermoforming mold for titanium alloy sheet metal parts such as fireproof covers for aircraft includes a punch and a die. A support plate is placed between the punch and the die, and multiple positioning pins are fixedly connected to the surface of the support plate. Guide plates are installed at both ends of the punch by hexagonal screws. An ejector rod is connected to the bottom of the punch. Die shank assemblies are fixedly connected to both sides of the punch and the die, and a limit mechanism is fixedly connected to the surface of the die shank assemblies.

[0006] Preferably, temperature measuring holes are provided on both sides of the punch, the material support plate, and the die.

[0007] Preferably, multiple hexagonal screws are installed inside the guide plate, and the punch, support plate and die are all provided with grooves that are adapted to the guide plate at both ends.

[0008] Preferably, the mold handle assembly includes fixed posts, and two fixed posts are fixedly connected to both sides of the punch and the die, and telescopic posts are inserted into the two fixed posts. A gripping handle is fixedly connected to the outer end of the telescopic post, and an anti-slip sleeve is provided on the surface of the gripping handle, and the surface of the anti-slip sleeve is provided with anti-slip texture.

[0009] Preferably, the inner wall size of the fixed column is adapted to the surface size of the telescopic column, the end of the telescopic column is fixedly connected to a limiting slider, and both sides of the fixed column are provided with through grooves adapted to the limiting slider.

[0010] Preferably, the limiting mechanism includes a fixed frame, the fixed frame is fixedly connected to the surface of the fixed column, and a push stud is threaded into the top of the fixed frame. The end of the push stud is connected to one side of the limiting plate through a bearing, and a plug-in column is fixedly connected to the other side of the limiting plate.

[0011] Preferably, the plug-in post is cylindrical, the surface of the fixed post has through holes adapted to the plug-in post, and the surface of the telescopic post has multiple slots adapted to the plug-in post at equal intervals.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This device uses a punch, a support plate, and a die to employ hot stretching technology. It designs a deep-drawing mold according to the shape of the part, ensuring the curvature of the part's surface and eliminating wrinkling problems. It is suitable for forming titanium alloy sheet metal parts such as fireproof caps, improving the yield rate, saving production costs, and allowing for the measurement of the internal temperature through a temperature measuring hole.

[0013] This device allows for easy handling of the punch and die as a whole by gripping the handle. The anti-slip sleeve provides anti-slip and heat insulation. By rotating the push stud, the limiting plate can retract the plug-in column into the fixed frame, allowing the telescopic column to slide along the fixed column. This facilitates easy adjustment of the length of the telescopic and fixed columns. When the punch and die are at high temperatures, the gripping handle can be moved away from the punch and die, improving handling safety. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of a thermoforming mold for a titanium alloy sheet metal part, such as a fireproof cover for an aircraft, proposed in this utility model. Figure 2 A three-dimensional separation diagram of a thermoforming mold for a titanium alloy sheet metal part such as a fireproof cover for an aircraft, as proposed in this utility model. Figure 3 for Figure 1 Exploded three-dimensional diagram of the fixed column and fixed frame structure; Figure 4 for Figure 1 A three-dimensional schematic diagram of the telescopic column and grip handle structure.

[0015] In the diagram: 1. Mold handle assembly; 11. Fixed post; 12. Telescopic post; 13. Grip handle; 14. Anti-slip sleeve; 15. Limiting slider; 2. Guide plate; 3. Locating pin; 4. Hexagonal screw; 5. Punch; 6. Material support plate; 7. Die; 8. Ejector pin; 9. Limiting mechanism; 91. Fixed frame; 92. Push stud; 93. Limiting plate; 94. Insertion pin; 10. Temperature measuring hole. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] Reference Figure 1-4 A thermoforming mold for titanium alloy sheet metal parts such as fireproof covers for aircraft includes a punch 5 and a die 7. A support plate 6 is placed between the punch 5 and the die 7, and multiple positioning pins 3 are fixedly connected to the surface of the support plate 6. Guide plates 2 are installed at both ends of the punch 5 by hexagonal screws 4. An ejector rod 8 is connected to the bottom of the punch 5. A mold shank assembly 1 is fixedly connected to both sides of the punch 5 and the die 7, and a limiting mechanism 9 is fixedly connected to the surface of the mold shank assembly 1. The limiting mechanism 9 can conveniently limit the function of the mold shank assembly 1.

[0018] Furthermore, refer to Figure 1 and Figure 2 It can be seen that temperature measuring holes 10 are provided on both sides of the punch 5, the support plate 6 and the die 7. Temperature measuring couplers can be easily inserted through the temperature measuring holes 10 to monitor the temperature inside the punch 5, the support plate 6 and the die 7.

[0019] Furthermore, refer to Figure 1 and Figure 2 It can be seen that multiple hexagonal screws 4 are installed inside the guide plate 2. The punch 5, the support plate 6 and the die 7 are all provided with grooves that are compatible with the guide plate 2. The multiple hexagonal screws 4 can increase the installation stability of the guide plate 2. At the same time, the grooves provided at both ends of the punch 5, the support plate 6 and the die 7 can facilitate positioning and guidance.

[0020] Furthermore, refer to Figure 3 and Figure 4 It can be seen that the mold handle assembly 1 includes fixed posts 11. Two fixed posts 11 are fixedly connected to both sides of the punch 5 and the die 7, and telescopic posts 12 are inserted into the two fixed posts 11. A grip handle 13 is fixedly connected to the outer end of the telescopic post 12. An anti-slip sleeve 14 is fitted on the surface of the grip handle 13, and anti-slip texture is provided on the surface of the anti-slip sleeve 14. The anti-slip sleeve 14 fitted on the surface of the grip handle 13 and the anti-slip texture provided on its surface can easily increase the stability of gripping the grip handle 13 and play a heat insulation role.

[0021] Furthermore, refer to Figure 3 and Figure 4 It can be seen that the inner wall size of the fixed column 11 is adapted to the surface size of the telescopic column 12. The end of the telescopic column 12 is fixedly connected to the limiting slider 15. Both sides of the fixed column 11 are provided with through grooves adapted to the limiting slider 15. By sliding the telescopic column 12 along the inside of the fixed column 11, the telescopic column 12 can easily drive the limiting slider 15 to slide along the through groove, which plays the role of limiting and guiding the telescopic column 12.

[0022] Furthermore, refer to Figure 2 and Figure 3 It can be seen that the limiting mechanism 9 includes a fixed frame 91, the fixed frame 91 is fixedly connected to the surface of the fixed column 11, and a push stud 92 is threadedly inserted into the top of the fixed frame 91. The end of the push stud 92 is connected to one side of the limiting plate 93 through a bearing, and a plug-in column 94 is fixedly connected to the other side of the limiting plate 93. By rotating the push stud 92, the limiting plate 93 and the plug-in column 94 can be easily moved along the fixed frame 91, which facilitates the function of limiting the fixed column 11 and the telescopic column 12.

[0023] Furthermore, refer to Figure 2 and Figure 3 It can be seen that the plug-in post 94 is cylindrical, the surface of the fixed post 11 is provided with through holes that are compatible with the plug-in post 94, and the surface of the telescopic post 12 is provided with multiple slots that are compatible with the plug-in post 94 at equal intervals. By inserting the plug-in post 94 through the fixed post 11 into the telescopic post 12, the functions of the fixed post 11 and the telescopic post 12 can be conveniently limited. Furthermore, by making the plug-in post 94 cylindrical, the wear of the plug-in post can be reduced.

[0024] Working principle: When this utility model is in use, when the mold handle assembly 1 is in use, according to the attached... Figure 1 Appendix Figure 2 Appendix Figure 3 and attached Figure 4The punch 5 is connected to the lower platform of the thermoforming machine, and the die 7 is connected to the upper platform. Before part forming, the thermoforming machine acts on the ejector pin 8 to push the support plate 6 so that the upper surface of the support plate 6 is flush with the upper surface of the punch 5. The movement stops, and the blank part is placed in using the locating pin 3 as a reference. During forming, the die 7 moves downwards together with the thermoforming machine. When the die 7 contacts the blank part, the part, die 7, support plate 6, upper platform of the thermoforming machine, ejector pin 8, and locating pin 3 move downwards synchronously and slowly, achieving a deep drawing effect and forming the part. The punch 5 and die 7 are then removed as needed. When rotating the push stud 92, the insertion pins 94 of the limit plate 93 can retract into the fixed frame 91. At this time, pulling the grip handle 13 can cause the telescopic column 12 to drive the limit slider 15 to slide along the inside of the fixed column 11. When the fixed column 11 and the telescopic column 12 are adjusted to the appropriate length, rotating the push stud 92 can easily push the limit plate 93 and the insertion pins 94 through the fixed column 11 and insert them into the telescopic column 12, which facilitates the function of limiting the fixed column 11 and the telescopic column 12. At this time, gripping the grip handle 13 and the anti-slip sleeve 14 can transport the punch 5 and the die 7. The above is the complete working principle of this utility model.

[0025] In this utility model, the installation, connection or setting methods of all the components mentioned above are common mechanical methods, and the specific structure, model and coefficient index of all the components are their own technologies. As long as they can achieve their beneficial effects, they can be implemented, so they will not be described in detail.

[0026] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

[0027] In this utility model, unless otherwise stated, directional terms such as "up, down, left, right, front, back, inside, outside, and vertical and horizontal" in the terminology only represent the orientation of the term in its conventional use or are common names understood by those skilled in the art, and should not be regarded as limitations on the term. At the same time, numerals such as "first," "second," and "third" do not represent specific quantities or orders, but are only used to distinguish names. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a series of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A thermoforming mold for titanium alloy sheet metal parts such as fireproof covers for aircraft, comprising a punch (5) and a die (7), characterized in that, A support plate (6) is placed between the punch (5) and the die (7), and multiple positioning pins (3) are fixedly connected to the surface of the support plate (6). Guide plates (2) are installed at both ends of the punch (5) by hexagonal screws (4). An ejector rod (8) is connected to the bottom of the punch (5). A mold shank assembly (1) is fixedly connected to both sides of the punch (5) and the die (7), and a limit mechanism (9) is fixedly connected to the surface of the mold shank assembly (1).

2. The thermoforming mold for a titanium alloy sheet metal part such as a fireproof cover for an aircraft according to claim 1, characterized in that, Temperature measuring holes (10) are provided on both sides of the punch (5), the support plate (6) and the die (7).

3. The thermoforming mold for a titanium alloy sheet metal part such as a fireproof cover for aircraft according to claim 1, characterized in that, Multiple hexagonal screws (4) are installed inside the guide plate (2). The punch (5), the material support plate (6), and the die (7) are all provided with grooves that are compatible with the guide plate (2) at both ends.

4. The thermoforming mold for a titanium alloy sheet metal part such as a fireproof cover for aircraft according to claim 1, characterized in that, The mold handle assembly (1) includes a fixed post (11). Two fixed posts (11) are fixedly connected to both sides of the punch (5) and the die (7). A telescopic post (12) is inserted into the two fixed posts (11). A gripping handle (13) is fixedly connected to the outer end of the telescopic post (12). An anti-slip sleeve (14) is fitted on the surface of the gripping handle (13), and anti-slip texture is provided on the surface of the anti-slip sleeve (14).

5. A thermoforming mold for titanium alloy sheet metal parts such as fireproof covers for aircraft according to claim 4, characterized in that, The inner wall size of the fixed column (11) is adapted to the surface size of the telescopic column (12). The end of the telescopic column (12) is fixedly connected to the limiting slider (15). Both sides of the fixed column (11) are provided with through grooves adapted to the limiting slider (15).

6. A thermoforming mold for titanium alloy sheet metal parts such as fireproof covers for aircraft according to claim 4, characterized in that, The limiting mechanism (9) includes a fixed frame (91), the fixed frame (91) is fixedly connected to the surface of the fixed column (11), and a push stud (92) is threadedly inserted into the top of the fixed frame (91). The end of the push stud (92) is connected to one side of the limiting plate (93) through a bearing, and a plug-in column (94) is fixedly connected to the other side of the limiting plate (93).

7. A thermoforming mold for titanium alloy sheet metal parts such as fireproof covers for aircraft according to claim 6, characterized in that, The plug-in post (94) is cylindrical, the surface of the fixed post (11) is provided with through holes adapted to the plug-in post (94), and the surface of the telescopic post (12) is provided with multiple slots adapted to the plug-in post (94) at equal intervals.

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