CN204604663U - A kind of paddle molding mould - Google Patents

Abstract

The utility model belongs to the mechanical processing technology, and in particular relates to a paddle forming die, which solves the problems that the paddle is easily deformed and the surface of the paddle is easily damaged when the existing mold is released. The paddle forming mold includes a matching upper mold and a lower mold, the surface where the upper mold and the lower mold meet is a parting surface, and at least four threaded holes are vertically opened on the upper mold, so The at least four threaded holes are evenly distributed on the two opposite parting surfaces of the upper die; each threaded hole is provided with a matched mold opening bolt, and the length of the mold opening bolt is longer than The thickness of the upper mold. The blade forming mold of the utility model has the advantages of convenient operation, less workload and high safety performance, the blade is not easily deformed and the surface of the blade is not easily damaged, which ensures the quality of the blade and improves the qualified rate of production.

Description

A paddle forming mold

technical field

The utility model belongs to the mechanical processing technology, in particular to a paddle forming die.

Background technique

Composite blade is an essential part of helicopter rotor system. Mold is an important tool for manufacturing composite blade. The structure of the mold is the key to determine whether the composite blade is qualified.

At present, in the domestic helicopter composite material blade molding, the mold opening is a problem that is often ignored, which makes it difficult to open the blade after molding. The more common method is to separate the upper mold and the lower mold by force. This mode of mold opening is difficult to operate, the workload is large, and the risk factor is large, and it is easy to cause deformation of the blade and scratch the surface of the blade during the mold opening process, thereby reducing the qualified rate of the product.

Utility model content

The technical problem to be solved by the utility model is to provide a paddle forming mold to solve the problems that the paddle is easily deformed and the surface of the paddle is easily scratched when the existing mold is released.

Technical scheme of the utility model:

A blade forming die, comprising a matching upper die and a lower die, the surface where the upper die and the lower die meet is a parting surface, and at least four screw threads are vertically penetrating on the upper die holes, the four threaded holes are evenly distributed on the two opposite parting surfaces of the upper mold; each threaded hole is provided with a matched mold bolt, and the mold bolt The length is greater than the thickness of the upper die.

Optionally, at least four columnar grooves are provided on the parting surface of the lower mold at positions corresponding to at least four of the threaded holes, and the diameter of the grooves is larger than the diameter of the opening bolts. .

Optionally, the threaded holes include four, which are evenly distributed on the two parting surfaces in the length direction of the upper die.

Beneficial effects of the utility model: the blade forming mold of the utility model has four bolt holes designed on both sides of the upper mold, and when the mold is opened, the upper mold continuously squeezes the lower mold through the four bolts on the mold, thereby The speed of mold opening can be well controlled, so that the upper mold and the lower mold can be slowly separated to achieve the purpose of mold opening. The utility model is easy to operate, has less workload and high safety performance, and the blade is not easily deformed and the surface of the blade is not easy Bruises ensure the quality of the blades and improve the qualified rate of production.

Description of drawings

Fig. 1 is the perspective view of the utility model paddle forming mold;

Fig. 2 is the perspective view of the upper mold that the mold opening bolt is installed in the utility model;

Fig. 3 is the three-dimensional view of the lower mold that the mold opening bolt is installed in the utility model;

Fig. 4 is the three-dimensional view of the upper die of the utility model that the mold bolt is not installed;

Fig. 5 is a partial schematic diagram of the front view of the mold opening bolt of the present invention;

Fig. 6 is a sectional view of A-A in Fig. 5 .

Detailed ways

The paddle forming die involved in the present invention will be described in further detail below in conjunction with the accompanying drawings.

As shown in Figures 1, 2, 3, 4, 5, and 6, the blade forming mold of the present invention includes a matching upper mold 5 and a lower mold 4, and the surfaces where the upper mold 5 and the lower mold 4 are connected Both are parting surfaces 6, and a plurality of uniformly arranged pressure bolts 2 pass through between the upper mold 5 and the lower mold 4 for fixing.

At least four threaded holes 8 are provided vertically on the upper mold 5 , and the four threaded holes 8 are evenly distributed on the two opposing mold parting surfaces 6 on the upper mold 5 . Specifically, in this embodiment, the number of threaded holes 8 is preferably four, which are evenly distributed on the two parting surfaces 6 in the length direction of the upper mold 5 , that is, symmetrically arranged in pairs.

In each threaded hole 8, be provided with a matched mold bolt 1, the length of the mold bolt 1 is greater than the thickness of the upper mold 5, preferred mold bolt 1 length is twice the thickness of the upper mold 5 in the present embodiment. When the mold is ejected, all the pressure bolts are removed, and then the four mold opening bolts 1 evenly distributed on the upper mold 5 are rotated to withstand the parting surface 6 of the lower mold 4, so that the lower mold 4 is slowly and steadily away from the mold. The upper mold 5 reaches the preliminary mold opening, and the situation of damaging the propeller blade during the forced mold opening process through the suspension ring 3 will not be avoided because of the excessive speed of the mold opening. After completing the initial mold removal, a crane can be used to hook the suspension ring 3 on the upper mold 5 and the lower mold 4 according to the traditional method to separate the upper mold 5 and the lower mold 4 quickly.

Further, at least four columnar grooves 7 are provided at positions corresponding to at least four threaded holes 8 on the parting surface 6 of the lower mold 4, and the diameter of the grooves 7 is greater than the diameter of the mold opening bolt 1, which is the same as that of the above-mentioned preferred embodiment. Correspondingly, there are preferably four columnar grooves 7 in this embodiment. When the mold is ejected, the opening bolt 1 can enter the four columnar grooves 7 when it reaches the parting surface 6 of the lower mold 4. When the lower mold 4 is squeezed, only the bottom surface of the columnar groove 7 is squeezed without Damage parting surface 6. Finally, the upper mold 5 and the lower mold 4 are slowly separated to achieve the effect of mold opening, and the blades will not be damaged due to the excessive speed of mold opening.

The paddle forming mold of the present utility model can reasonably select the quantity and arrangement position of the mold-opening bolts 1 according to products of different shapes, thereby controlling or avoiding damage to the paddle during the mold-opening process after the paddle is solidified and formed, and It has the advantages of convenient operation, less workload and safety. In addition, the blade forming mold of the utility model has the advantages of simple structure, convenient operation and good stability, and is suitable for mass production and project pre-research model blade development type, thereby shortening the mold opening time of the parts and improving the safety of the operator And the quality of the product has improved the production pass rate of helicopter composite blades.

The above descriptions are only preferred implementations of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the original premise of the present utility model, these improvements and modifications should also be regarded as the present utility model. protected range.

Claims (3)

1. A blade forming die, comprising a matched patrix (5) and a lower die (4), the face where the patrix (5) and the lower die (4) join is a parting surface (6), It is characterized in that at least four threaded holes (8) are opened vertically on the upper mold (5), and the at least four threaded holes (8) are evenly distributed on the upper mold (5) On the two relative parting surfaces (6); Each said threaded hole (8) is provided with a matched mold opening bolt (1), and the length of said mold opening bolt (1) is greater than the thickness of said upper mold (5). 2. The blade forming mold according to claim 1, characterized in that, the positions on the parting surface (6) of the lower mold (4) corresponding to at least four of the threaded holes (8) There are at least four columnar grooves (7), the diameter of the grooves (7) is larger than the diameter of the opening bolt (1). 3. The paddle forming die according to claim 1, characterized in that, the threaded holes (8) include four, and the two parting surfaces are evenly distributed in the length direction of the upper die (5) (6) up.