A connecting and positioning device suitable for narrow space inside a combined die

Abstract

The present application relates to the field of composite material manufacturing, particularly to the combined die positioning connection of complex rotary cavity structure of composite material, which is convenient to disassemble and assemble. The positioning device is suitable for the narrow space in the combined die, which comprises an upper support plate, a lower support plate, a positioning pin and a dismounting device. The upper support plate and the lower support plate are respectively installed in the upper part and the lower part of the combined die, and a through hole is formed in the corresponding position of the two. The outer diameter of the positioning pin is matched with the inner diameter of the through hole, and the length of the positioning pin is not greater than the thickness of the lower support plate. When the combined die is assembled, the positioning pin is inserted into the through hole of the upper support plate, and the dismounting device pushes the positioning pin to move axially along the through hole. When the combined die is disassembled, the dismounting device pushes the positioning pin to continue moving axially along the through hole. The present application has the following advantages: 1. The accurate positioning connection between the blocks of the combined die is realized; 2. The positioning connection between the combined dies is realized; 3. The dismounting efficiency of the die is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of composite material manufacturing, in particular to the positioning and connecting of combined molds for complex rotary cavity structures of composite materials, which can realize accurate positioning in narrow and closed space and facilitate disassembly and assembly. BACKGROUND

[0002] Advanced composite materials are widely used in aerospace fields such as aircraft engines, unmanned aerial vehicles, missile structures, launch vehicle structures, satellites and spacecraft due to their excellent physical, chemical, mechanical and other functional diversities, structural integration and designability. The structural advantages brought by the integration and designability of composite materials make the composite parts more and more large-scale and complex, which brings many challenges to the design and manufacturing technology of composite tooling. Therefore, a large number of aircraft inlets are made of metal materials, which are easy to manufacture. However, in the manufacturing process of complex semi-closed structures such as composite inlets, the mold is demolded from the semi-closed part, and the block combination mold is repeatedly disassembled and positioned and connected, which is the biggest difficulty. How to realize the quick and accurate positioning and connection of the combined mold in a narrow space is an important factor affecting the quality and efficiency of product manufacturing. At present, there are different forms to realize the disassembly, connection and positioning of the combined mold, mainly having the following problems:

[0003] 1. In the traditional pin positioning mode, it is difficult to insert and pull out the pin in a narrow space, and the space required by the pin puller limits the structural design of the mold. Parts that are too narrow cannot be manufactured by block molds.

[0004] 2. In the mode of other keyway positioning, long-term insertion and pulling out can easily cause wear, which reduces the service life of the mold and also reduces the positioning accuracy. SUMMARY

[0005] The purpose of the present application is to provide a connecting and positioning device suitable for the narrow space in the combined mold, which is mainly used for the manufacturing of closed combined molds of composite materials and the forming of parts, to ensure the quick disassembly and combination of the combined mold, easy replacement, and good positioning accuracy.

[0006] In order to achieve the above object, the present application adopts the following technical scheme: A connecting and positioning device suitable for narrow space inside a combined die, the connecting and positioning device comprises an upper support plate, a lower support plate, a positioning pin and a mounting and dismounting device; the upper support plate and the lower support plate are respectively installed at the upper part and the lower part inside the combined die, and a through hole is formed at the corresponding position of each of the two; the outer diameter of the positioning pin is adapted to the inner diameter of the through hole, and the length of the positioning pin is not greater than the thickness of the lower support plate; when the combined die is combined, the positioning pin is inserted into the through hole of the upper support plate, the mounting and dismounting device pushes the positioning pin to move along the through hole in the axial direction, so that the positioning pin is partially inserted into the through hole of the lower support plate, and the connecting and positioning of the combined die is realized; when the combined die is disassembled, the mounting and dismounting device pushes the positioning pin to continue moving along the through hole in the axial direction, so that the positioning pin is completely inserted into the through hole of the lower support plate, and the disassembly of the combined die is realized.

[0007] Preferably, the thicknesses of the upper support plate and the lower support plate are the same, and the length of the positioning pin is consistent with the thicknesses of the two.

[0008] Preferably, the mounting and dismounting device comprises a pushing member and a dismounting member, the length of the pushing member is smaller than the thickness of the upper support plate, and a through hole for inserting the dismounting member is formed at the center of the pushing member, and the through hole extends along the axial direction thereof; the length of the dismounting member is greater than the thickness of the upper support plate.

[0009] Preferably, the pushing member is a pushing bolt, and the pushing bolt is in T shape and is screwed with the upper support plate.

[0010] Preferably, the length of the pushing bolt completely screwed into the upper support plate is half of the thickness of the upper support plate.

[0011] Preferably, the dismounting member is a dismounting bolt, and the dismounting bolt is in T shape and is screwed with the pushing member.

[0012] Preferably, when the dismounting bolt is completely screwed into the pushing member, the end of the dismounting bolt is located at the joint of the upper support plate and the lower support plate, so that the positioning pin is completely separated from the upper support plate, and the upper support plate and the lower support plate are separated.

[0013] Preferably, the upper support plate and the lower support plate are respectively welded to the upper part and the lower part of the combined die through the side edges.

[0014] Compared with the prior art, the present application has the following advantages:

[0015] 1. The present application can effectively realize the accurate connecting and positioning between the blocks of the combined die;

[0016] 2. The present application can realize the connecting and positioning between the combined dies of narrow space structure, which is beneficial to the selection of die design;

[0017] 3. The method is simple to operate, and is convenient for the disassembly and assembly of the combined die, thereby improving the disassembly and assembly efficiency of the die. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic diagram of an embodiment of the present application;

[0019] Figure 2 is a structural schematic diagram of an upper support plate in an embodiment of the present application;

[0020] Figure 3 is a structural schematic diagram of a lower support plate in an embodiment of the present application;

[0021] Figure 4 is a structural schematic diagram of a pin combination in an embodiment of the present application;

[0022] Figure 5 is a structural schematic diagram of a combination of an upper support plate and a lower support plate in an embodiment of the present application;

[0023] Figure 6 is a structural schematic diagram of a combination of an upper support plate, a lower support plate and a push bolt in an embodiment of the present application;

[0024] Figure 7 is a sectional view of Figure 6 ;

[0025] Figure 8 is a structural schematic diagram of a pin removal in an embodiment of the present application;

[0026] Figure 9 is a structural schematic diagram of a pin removal in an embodiment of the present application;

[0027] Figure 10 is a sectional view of a removal state in an embodiment of the present application;

[0028] Figures 1-10 In the figure, 1 is an upper support plate; 2 is a lower support plate; 3 is a push bolt; 4 is a pin removal bolt; and 5 is a positioning half pin. Embodiment

[0029] It should be noted that the terms "upper", "lower", "center" and the like are described according to the figures shown or commonly used, and do not constitute a limitation on the present application.

[0030] The following will be described in conjunction with the accompanying Figures 1-10Further described is the present application: a connecting and positioning device suitable for narrow space inside a combined die, the connecting and positioning device comprising an upper support plate 1, a lower support plate 2, a positioning half pin 5, and a mounting and dismounting device; the upper support plate 1 and the lower support plate 2 are respectively installed at the upper part and the lower part inside the combined die, and a through hole is formed at the corresponding position of both; the outer diameter of the positioning half pin 5 is adapted to the inner diameter of the through hole, and the length of the positioning half pin 5 is not greater than the thickness of the lower support plate 2; when the combined die is combined, the positioning half pin 5 is inserted into the through hole of the upper support plate 1, the mounting and dismounting device pushes the positioning half pin 5 to move along the through hole in the axial direction, so that the positioning half pin 5 is partially inserted into the through hole of the lower support plate 2, and the connecting and positioning of the combined die is realized; when the combined die is disassembled, the mounting and dismounting device pushes the positioning half pin 5 to continue moving along the through hole in the axial direction, so that the positioning half pin 5 is completely inserted into the through hole of the lower support plate 2, and the disassembly of the combined die is realized.

[0031] Specifically, the upper support plate 1 is used for supporting the blocks of the plate combined die; the lower support plate 2 is used for supporting the blocks of the plate combined die; as shown in the drawing, the thickness of the upper support plate 1 and the lower support plate 2 is the same, and the length of the positioning half pin 5 is consistent with the thickness of the two. Figure 7

[0032] As a preferred embodiment of the present embodiment, the mounting and dismounting device comprises a pushing member and a dismounting member, the pushing member is a pushing bolt 3 in T shape, the pushing bolt 3 is screwed with the upper support plate 1, the length of the pushing bolt 3 is less than the thickness of the upper support plate 1, and a through hole for inserting the dismounting member is formed at the center of the pushing bolt 3, and the through hole extends along the axial direction thereof; the dismounting member is a bolt 4 in T shape, the bolt 4 is screwed with the pushing bolt 3, and the length of the bolt 4 is greater than the thickness of the upper support plate 1. The pushing bolt 3 is used for pushing the positioning half pin 5 into the connecting position of the upper support plate and the lower support plate, so as to form the positioning and connecting effect; the bolt 4 is used for pushing the positioning half pin 5 out of the connecting position of the upper support plate 1 and the lower support plate 2, so as to separate the upper support plate 1 and the lower support plate 2; the positioning half pin 5 is used for the connecting and positioning of the upper support plate 1 and the lower support plate 2.

[0033] As a preferred embodiment of the present embodiment, the length of the pushing bolt 3 completely screwed into the upper support plate 1 is half of the thickness of the upper support plate 1; when the bolt 4 is completely screwed into the through hole of the pushing bolt 3, the end of the bolt 4 is just located at the connecting position of the upper support plate 1 and the lower support plate 2, so that the positioning half pin 5 is completely separated from the upper support plate 1, and the upper support plate 1 and the lower support plate 2 are separated.

[0034] Principle: the upper support plate 1 and the lower support plate 2 can be respectively welded to the inside of the block die, and are used for the positioning and connecting of the block die; the positioning half pin 5 is used for the positioning of the upper support plate 1 and the lower support plate 2, the pushing bolt 3 is used for pushing the positioning half pin 5 into the positioning position, and the bolt 4 is used for pushing the positioning half pin out of the positioning position, so as to form the separation of the combined die.

[0035] Method for use:​

[0036] 1. For example Figures 1-10 As shown, the upper support plate 1 and the lower support plate 2 can be welded to the blocks inside the combined mold through the side, that is, the upper block and the lower block of the combined mold, and are positioned and connected through the upper support plate 1 and the lower support plate 2.

[0037] 2. The materials of the upper support plate 1 and the lower support plate 2 are consistent with those of the combined mold;

[0038] 3. Positioning process of the combined device: such as Figure 5 As shown, the upper support plate 1 and the lower support plate 2 are fitted together for initial positioning;

[0039] 4. Insert the positioning half-pin 5 into the pin hole of the upper support plate 1, and then insert the push bolt 3. By tightening the push bolt 3, the positioning half-pin 5 is pushed to the middle part of the upper support plate 1 and the lower support plate 2, forming a positioning function for the relative position of the two support plates.

[0040] 5. For example Figure 7 As shown, the length of the positioning half-pin 5 is L, the thickness of the upper support plate 1 and the lower support plate 2 is L, and the length of the push bolt 3 is 1 / 2L. When the push bolt 3 is tightened, half of the length of the positioning half-pin 5 is located in the hole of the upper support plate 1 and half is located in the hole of the lower support plate 2.

[0041] 6. Assembly mold disassembly process: The unscrew bolt 4 is screwed in by pushing the middle of the bolt 3. When it is screwed in to contact the positioning half pin 5, the positioning half pin 5 moves downward under the action of the thrust until the unscrew bolt 4 is screwed to the bottom.

[0042] 7. For example Figure 10 As shown, the positioning half pin 5 moves into the pin hole of the lower support plate 5, thereby separating the upper support plate 1 and the lower support plate 2, and thus separating the combined mold;

[0043] 8. After the upper support block 1 and the lower support plate 2 are separated, the pushing bolt 3, the unpin bolt 4 and the positioning half pin 5 can be taken out for the next assembly and positioning connection. The whole process is simple to operate and does not require much operating space. It can well realize the modular combination connection of complex structure molds.

[0044] The above embodiments are merely preferred embodiments of the present invention and do not constitute a limitation thereof. Any extensions, modifications, and equivalent substitutions made by those skilled in the art without departing from the principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A connecting positioning device suitable for narrow space inside a combined mold, characterized in that: The connecting positioning device comprises an upper support plate, a lower support plate, a positioning pin, and a mounting and dismounting device; the upper support plate and the lower support plate are respectively installed at the upper part and the lower part of the combined mold, and a through hole is formed at the corresponding position of each of the two; the outer diameter of the positioning pin is adapted to the inner diameter of the through hole, and the length of the positioning pin is not greater than the thickness of the lower support plate; when the combined mold is combined, the positioning pin is inserted into the through hole of the upper support plate, the mounting and dismounting device pushes the positioning pin to move axially along the through hole, so that the positioning pin is partially inserted into the through hole of the lower support plate, thereby realizing the connecting positioning of the combined mold; when the combined mold is disassembled, the mounting and dismounting device pushes the positioning pin to continue moving axially along the through hole, so that the positioning pin is completely inserted into the through hole of the lower support plate, thereby realizing the disassembly of the combined mold.

2. The connecting positioning device suitable for the narrow space inside the combined die according to claim 1, characterized in that: The thicknesses of the upper support plate and the lower support plate are the same, and the length of the positioning pin is consistent with the thicknesses of the two.

3. The connecting positioning device suitable for the narrow space inside the combined die according to claim 1, characterized in that: The mounting and dismounting device comprises a pushing member and a dismounting member; the length of the pushing member is less than the thickness of the upper support plate, and a through hole for inserting the dismounting member is formed at the center of the pushing member, and the through hole extends along the axial direction of the pushing member; the length of the dismounting member is greater than the thickness of the upper support plate.

4. The connecting positioning device suitable for the narrow space inside the combined die according to claim 3, characterized in that: The pushing member is a pushing bolt, which is in the shape of T; the pushing bolt is screwed with the upper support plate.

5. The connecting positioning device suitable for the narrow space inside the combined die according to claim 4, characterized in that: The length of the pushing bolt when it is completely screwed into the upper support plate is half of the thickness of the upper support plate.

6. The connecting positioning device suitable for the narrow space inside the combined die according to claim 3, characterized in that: The dismounting member is a pin withdrawing bolt, which is in the shape of T; the pin withdrawing bolt is screwed with the pushing member.

7. The connecting positioning device suitable for the narrow space inside the combined die according to claim 6, characterized in that: When the pin withdrawing bolt is completely screwed into the pushing member, the end of the pin withdrawing bolt is located at the joint of the upper support plate and the lower support plate, so that the positioning pin is completely separated from the upper support plate, and the upper support plate and the lower support plate are separated.

8. The connecting positioning device suitable for the narrow space inside the combined die according to claim 1, characterized in that: The upper support plate and the lower support plate are respectively welded at the upper part and the lower part of the combined mold through the side edges.

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