Precise forging and pressing die for aero-engine blade

Abstract

The utility model relates to the field of forging and pressing dies, and provides an aero-engine blade precision forging and pressing die which comprises a base, a first fixing plate is arranged in the middle of the top face of the base, a lower die plate is arranged above the first fixing plate in a clamped mode, a lower die groove is formed in the middle of the top face of the lower die plate, and a lower die base plate is arranged on the inner side of the lower die groove. A fixing frame is arranged on the edge of the top face of the base, hydraulic equipment is fixedly arranged at one end of the fixing frame, a second fixing plate is fixedly arranged at the output end of the hydraulic equipment, an upper die plate is clamped below the second fixing plate, an upper die protruding plate is fixedly arranged in the middle of the bottom face of the upper die plate, and a positioning frame is movably arranged on the outer side of the upper die protruding plate. The lower die plate and the upper die plate are matched to complete forging and pressing, the positioning frame is arranged on the outer side of the upper die protruding plate, materials can be accurately positioned, displacement of the materials during forging and pressing can be prevented, the lower die base plate on the inner side of the lower die groove can avoid excessive deformation of the materials, forging and pressing materials can be saved, and production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of forging dies, in particular to a precision forging die for aero-engine blades. Background Art

[0002] Aircraft engine blades are key parts in aircraft engines, and they have the characteristics of high temperature resistance and high deformation resistance. In order to ensure the quality of aircraft engine blades, aircraft engine blades are currently mostly formed using precision forging technology to ensure their stable quality.

[0003] At present, the precision forging dies used for aircraft engine blade forming mostly use guide pins and guide sleeves for guidance and positioning. Due to their complex structure, the production cost remains high. Moreover, the positioning accuracy is often difficult to control when using guide pins and guide sleeves for guidance and positioning, which can easily cause defects in the forged products and a large amount of forging material waste.

[0004] Therefore, there is a need for a precision forging die for aircraft engine blades that can ensure accurate positioning during forging and avoid displacement of forging materials, while helping to save forging materials and reduce production costs. Summary of the invention

[0005] In order to solve the above problems, the utility model proposes a precision forging die for aero-engine blades, which has a simple structure and accurate positioning, helps to save forging materials and reduce production costs.

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

[0007] A precision forging die for an aero-engine blade, comprising a base, a first fixing plate fixedly provided at the middle of the top surface of the base, a first L-shaped clamping plate fixedly provided at the edge of the top surface of the first fixing plate, a lower die plate clamped at the inner side of the first L-shaped clamping plate, a lower die groove provided at the middle of the top surface of the lower die plate, a second spring groove provided at the inner bottom surface of the lower die groove, a second spring fixedly provided at the inner bottom surface of the second spring groove, a support column fixedly provided at the upper end of the second spring, a lower die pad fixedly provided at the top end of the support column, and the lower die pad located at the inner side of the lower die groove;

[0008] A fixing frame is fixedly provided on the edge of the top surface of the base, a hydraulic device is fixedly provided on one end of the fixing frame, a second fixing plate is fixedly provided on the output end of the hydraulic device, a second L-shaped clamping plate is fixedly provided on the edge of the bottom surface of the second fixing plate, an upper template is clamped on the inner side of the second L-shaped clamping plate, an upper template convex plate is fixedly provided on the middle part of the bottom surface of the upper template, a third spring groove is provided on the edge of the bottom surface of the upper template, a third spring is fixedly provided on the top surface of the inner side of the third spring groove, a sliding column is fixedly provided on the lower end of the third spring, a positioning frame is fixedly provided on the lower end of the sliding column, a positioning plate is fixedly provided on the edge of the bottom surface of the positioning frame, and the positioning frame is sleeved on the outer side of the upper template convex plate.

[0009] As an optimal technical solution for an aircraft engine blade precision forging die of the utility model, a rectangular groove is provided on one side wall of the first L-shaped clamping plate, a rectangular hole is provided on the edge of the inner wall of the rectangular groove, a first spring groove is provided at one end of the rectangular hole, the rectangular hole is connected with the first spring groove, and the second L-shaped clamping plate has the same structure as the first L-shaped clamping plate.

[0010] As an optimal technical solution for an aircraft engine blade precision forging die of the utility model, a first limit assembly is movably provided on the inner side of the first spring groove, and the first limit assembly includes a limit rod, a rectangular rod, a first spring and a movable plate. The limit rod is movably inserted into the inner side of the first spring groove, and a first spring is fixedly provided at one end of the limit rod, and one end of the first spring is connected to the inner wall of the first spring groove, and a rectangular rod is fixedly provided at the middle part of one side wall of the limit rod, and the rectangular rod is sleeved on the inner side of the first spring, and one end of the rectangular rod is located on the inner side of the rectangular hole, and a movable plate is fixedly provided at one end of the rectangular rod, and the movable plate is movably clamped on the inner side of the rectangular groove.

[0011] As a preferred technical solution for an aircraft engine blade precision forging die of the utility model, a second limiting component is provided on one side wall of the second L-shaped clamping plate, and the second limiting component has the same structure as the first limiting component.

[0012] As an optimal technical solution for an aircraft engine blade precision forging die of the utility model, a first clamping groove is provided on one side wall of the lower template, and the first L-shaped clamping plate is clamped on the inner side of the first clamping groove; a second clamping groove is provided on one side wall of the upper template, and the second L-shaped clamping plate is clamped on the inner side of the second clamping groove.

[0013] As an optimal technical solution for an aircraft engine blade precision forging die of the utility model, a first limiting groove is provided in the middle of the inner side wall of the first clamping groove, one end of the limiting rod is movably inserted into the inner side of the first limiting groove, a second limiting groove is provided in the middle of the inner side wall of the second clamping groove, and one end of the second limiting component is movably inserted into the inner side of the second limiting groove.

[0014] As an optimal technical solution for the precision forging die for an aircraft engine blade of the utility model, the size of the upper die convex plate is matched with the size of the lower die pad.

[0015] As an optimal technical solution for an aircraft engine blade precision forging die of the utility model, the inner wall of the positioning frame is tightly fitted with the outer wall of the upper die convex plate, and the inner wall of the lower die groove is tightly fitted with the outer wall of the lower die pad.

[0016] Compared with the existing technology, the utility model has the following beneficial effects:

[0017] The utility model completes the forging of the material by setting the lower template and the upper template in cooperation with each other, and a positioning frame that closely fits the outer wall of the upper mold convex plate is provided on the outer side of the upper mold convex plate, and a positioning plate is provided on the bottom surface of the positioning frame. When forging is performed, the material plate is placed on the lower template, and when the upper template is pressed down, the positioning plate on the bottom surface of the positioning frame will contact the material before the upper mold convex plate presses the material, so as to position and fix it to prevent it from displacement. The positioning frame is connected to the third spring through a sliding column. After the material is positioned, as the upper template continues to be pressed down, the third spring contracts, causing the positioning frame to move downward, which will not affect the forging of the material by the upper mold convex plate. In addition, since the positioning plate on the bottom surface of the positioning frame is closely fitted with the upper mold convex plate, the positioning plate itself is narrow in size, and cooperates with an external CNC center to control the forging spacing of the material plates, which can save forging materials to the maximum extent and reduce production costs. This scheme can ensure accurate positioning during forging and avoid displacement of forging materials, while helping to save forging materials and reduce production costs.

[0018] The utility model has a second spring groove at the bottom of the lower die groove on the lower template, a second spring is arranged in the second spring groove, a support column connects the lower die pad and the second spring, the lower die pad is located on the inner side of the lower die groove, compared with the traditional fixed lower die concave plate, when the upper mold convex plate presses the forging material into the lower die concave plate for forming, the lower die pad can support the material and move it slowly downward, avoiding excessive deformation of the material, or displacement on the inner side of the lower die concave plate, causing material forging failure, thereby increasing the forging yield rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to better describe the technical solution of the utility model in detail, the present invention is further explained below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is a three-dimensional diagram of the overall structure provided by the utility model;

[0021] Figure 2 It is a three-dimensional cross-sectional view of the utility model;

[0022] Figure 3 For this utility model Figure 2 The enlarged schematic diagram of point A in the middle;

[0023] Figure 4 For this utility model Figure 2 The enlarged schematic diagram of point B in the middle;

[0024] Figure 5 For this utility model Figure 2 The enlarged schematic diagram of the center C;

[0025] Figure 6 It is a three-dimensional diagram of the first limiting component of the utility model;

[0026] Figure 7 It is a three-dimensional diagram of the positioning frame of the utility model.

[0027] In the figure: 1. base; 2. first fixed plate; 21. first L-shaped clamping plate; 211. first spring groove; 212. rectangular hole; 213. rectangular groove; 22. first limiting assembly; 221. limiting rod; 222. rectangular rod; 223. first spring; 224. movable plate; 3. lower template; 31. first clamping groove; 32. first limiting groove; 33. lower mold groove; 34. second spring groove; 35. second spring; 36. support column; 37. lower mold pad; 4. fixed frame; 5. hydraulic equipment; 6. second fixed plate; 61. second L-shaped clamping plate; 62. second limiting assembly; 7. upper template; 71. second clamping groove; 72. second limiting groove; 73. upper mold convex plate; 74. third spring groove; 75. third spring; 76. sliding column; 77. positioning frame; 78. positioning plate. DETAILED DESCRIPTION

[0028] 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 of 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. Example

[0029] See also Figure 1-7 As shown, the utility model provides the following technical solutions: a precision forging die for aircraft engine blades, comprising a base 1, a first fixed plate 2 is fixedly provided on the middle part of the top surface of the base 1, a fixed frame 4 is fixedly provided on the edge of the top surface of the base 1, a hydraulic device 5 is fixedly provided at one end of the fixed frame 4 (the hydraulic device 5 is a prior art, and the specific operation mode and principle can refer to the electric hydraulic cylinder in the prior art, and the opening and closing are controlled by an external power supply, so it is not described in detail here), and a second fixed plate 6 is fixedly provided on the output end of the hydraulic device 5. In this solution, the forging die is supported and fixed by the first fixed plate 2 and the second fixed plate 6 to ensure the stability of the die during the forging process.

[0030] Reference Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 7 As shown, specifically, a first L-shaped clamping plate 21 is fixedly provided at the edge of the top surface of the first fixed plate 2, which is used to clamp and fix the lower template 3. The lower template 3 is clamped on the inner side of the first L-shaped clamping plate 21, which is used to cooperate with the upper template 7 to forge the material. A lower die groove 33 is provided in the middle of the top surface of the lower template 3, which cooperates with the upper die convex plate 73 to forge the material. A second spring groove 34 is provided on the inner bottom surface of the lower die groove 33, and a second spring 35 is fixedly provided on the inner bottom surface of the second spring groove 34 to provide a lower die pad. The plate 37 provides elastic support force, and a support column 36 is fixed on the upper end of the second spring 35 for supporting the lower die pad 37. The lower die pad 37 is fixed on the top of the support column 36 for lifting the forging material and improving the success rate of forging. The lower die pad 37 is located on the inner side of the lower die groove 33, and the inner side wall of the lower die groove 33 is tightly fitted with the outer side wall of the lower die pad 37. The second fixed plate 6 is fixed with a second L-shaped clamping plate 61 on the bottom edge of the second fixed plate 6 for clamping and fixing the upper template 7. The inner side wall of the second L-shaped clamping plate 61 is fixed to the lower side wall of the lower die groove 33. The lock body 71 of the present invention is provided with a lock body 72, and a locking plate 77 is provided on the top of the lock body 72 for locking the lock body 72. The locking plate 77 is provided with a third spring groove 74 on the bottom edge of the upper mold plate 7, and a third spring 75 is fixed on the inner top surface of the third spring groove 74, so that the positioning frame 77 has the function of elastic movement. A sliding column 76 is fixed on the lower end of the third spring 75 for connecting the positioning frame 77 and the third spring 75. A positioning frame 77 is fixed on the lower end of the sliding column 76 for positioning the forging material. A positioning plate 78 is fixed on the bottom edge of the positioning frame 77 to make the positioning of the forging material more accurate. The positioning frame 77 is sleeved on the outer side of the upper mold convex plate 73, and the inner wall of the positioning frame 77 is tightly fitted with the outer wall of the upper mold convex plate 73. This scheme can ensure accurate positioning during forging and avoid displacement of the forging material. At the same time, it helps to save forging materials and reduce production costs.

[0031] Reference Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6As shown, specifically, a rectangular groove 213 is provided on one side wall of the first L-shaped card plate 21 for storing the movable plate 224, a rectangular hole 212 is provided on the inner side wall edge of the rectangular groove 213 to facilitate the movement of the rectangular rod 222, a first spring groove 211 is provided at one end of the rectangular hole 212 to connect the first spring 223 and facilitate the movement of the limiting rod 221, the rectangular hole 212 is connected with the first spring groove 211, the second L-shaped card plate 61 has the same structure as the first L-shaped card plate 21, a first limiting assembly 22 is movably provided inside the first spring groove 211 to limit the lower template 3, and the first limiting assembly 22 includes a limiting rod 2 21, a rectangular rod 222, a first spring 223 and a movable plate 224, the limiting rod 221 is movably inserted into the inner side of the first spring groove 211, the limiting rod 221 can fix the lower template 3, one end of the limiting rod 221 is fixed with a first spring 223 to provide elastic support for the limiting rod 221, one end of the first spring 223 is connected to the inner wall of the first spring groove 211, a rectangular rod 222 is fixed in the middle of one side wall of the limiting rod 221 for connecting the movable plate 224 and the limiting rod 221, the rectangular rod 222 is sleeved on the inner side of the first spring 223, and one end of the rectangular rod 222 is located inside the rectangular hole 212, A movable plate 224 is fixedly provided at one end of the rectangular rod 222. By pulling the movable plate 224, the limiting rod 221 is driven to move. The movable plate 224 is movably clamped on the inner side of the rectangular groove 213. A second limiting component 62 is provided on one side wall of the second L-shaped clamping plate 61 to limit the upper template 7. The second limiting component 62 has the same structure as the first limiting component 22. A first clamping groove 31 is provided on one side wall of the lower template 3 for clamping and fixing the lower template 3. The first L-shaped clamping plate 21 is clamped on the inner side of the first clamping groove 31. A second clamping groove 71 is provided on one side wall of the upper template 7 for clamping and fixing the upper template 7. The second L-shaped clamping plate 61 is clamped on the inner side of the first clamping groove 31. On the inner side of the second clamping groove 71, a first limiting groove 32 is provided in the middle of the inner side wall of the first clamping groove 31, and one end of the limiting rod 221 is movably inserted in the inner side of the first limiting groove 32 to limit the lower template 3. A second limiting groove 72 is provided in the middle of the inner side wall of the second clamping groove 71, and one end of the second limiting component 62 is movably inserted in the inner side of the second limiting groove 72 to limit the upper template 7. This solution can fix the lower template 3 and the upper template 7 through the first limiting component 22 and the second limiting component 62, and can be quickly disassembled, which is convenient for cleaning or replacement of the lower template 3 and the upper template 7 and improves work efficiency.

[0032] The working principle and use process of this utility model:

[0033] When in use, the forging material spacing is controlled in coordination with the external CNC center, the forging material plate is placed above the lower die groove 33 on the top surface of the lower die plate 3, the hydraulic device 5 is started, the upper die plate 7 is controlled to move downward, the positioning plate 78 on the bottom surface of the positioning frame 77 first contacts the forging material to press and position it, and then the third spring 75 is compressed by the pressure to make the upper die plate 7 continue to move downward, the upper die convex plate 73 presses the material for forging, and when the forging material of the upper die convex plate 73 enters the inner side of the lower die groove 33, the lower die pad 37 forms a pressure on the formed material. Lifting force, the second spring 35 contracts under pressure, driving the lower die pad 37 to lift the formed material and move downward at a uniform speed to prevent excessive deformation or displacement of the material. After the lower die pad 37 moves down to the bottom of the lower die groove 33, the material is completely formed and the forging is completed. If it is necessary to clean or replace the lower template 3 and the upper template 7, the movable plate 224 can be pulled to one side to drive the first spring 223 to contract, so that the limiting rod 221 is disengaged from the first limiting groove 32, and the lower template 3 can be pulled out. The disassembly principle of the upper template 7 is the same as that of the lower template 3.

[0034] 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. A precision forging die for an aircraft engine blade, comprising a base (1), characterized in that: A first fixing plate (2) is fixedly provided at the middle of the top surface of the base (1), a first L-shaped clamping plate (21) is fixedly provided at the edge of the top surface of the first fixing plate (2), a lower mold plate (3) is clamped on the inner side of the first L-shaped clamping plate (21), a lower mold groove (33) is provided at the middle of the top surface of the lower mold groove (3), a second spring groove (34) is provided on the inner bottom surface of the lower mold groove (33), a second spring (35) is fixedly provided on the inner bottom surface of the second spring groove (34), a support column (36) is fixedly provided at the upper end of the second spring (35), a lower mold pad (37) is fixedly provided at the top end of the support column (36), and the lower mold pad (37) is located on the inner side of the lower mold groove (33); A fixing frame (4) is fixedly provided on the top edge of the base (1), a hydraulic device (5) is fixedly provided on one end of the fixing frame (4), a second fixing plate (6) is fixedly provided on the output end of the hydraulic device (5), a second L-shaped clamping plate (61) is fixedly provided on the bottom edge of the second fixing plate (6), an upper mold plate (7) is clamped on the inner side of the second L-shaped clamping plate (61), an upper mold convex plate (73) is fixedly provided on the middle part of the bottom surface of the upper mold plate (7), a third spring groove (74) is provided on the bottom edge of the upper mold plate (7), a third spring (75) is fixedly provided on the inner top surface of the third spring groove (74), a sliding column (76) is fixedly provided on the lower end of the third spring (75), a positioning frame (77) is fixedly provided on the lower end of the sliding column (76), a positioning plate (78) is fixedly provided on the bottom edge of the positioning frame (77), and the positioning frame (77) is sleeved on the outer side of the upper mold convex plate (73).

2. The precision forging die for an aircraft engine blade according to claim 1, characterized in that: A rectangular groove (213) is provided on one side wall of the first L-shaped card plate (21), a rectangular hole (212) is provided on the inner side wall edge of the rectangular groove (213), a first spring groove (211) is provided at one end of the rectangular hole (212), the rectangular hole (212) and the first spring groove (211) are connected, and the second L-shaped card plate (61) has the same structure as the first L-shaped card plate (21).

3. The precision forging die for aero-engine blade according to claim 2, characterized in that: A first limiting assembly (22) is movably provided inside the first spring groove (211). The first limiting assembly (22) comprises a limiting rod (221), a rectangular rod (222), a first spring (223) and a movable plate (224). The limiting rod (221) is movably inserted inside the first spring groove (211). The first spring (223) is fixedly provided at one end of the limiting rod (221). One end of the first spring (223) is connected to the inner wall of the first spring groove (211). A rectangular rod (222) is fixedly provided at the middle of one side wall of the limiting rod (221). The rectangular rod (222) is sleeved inside the first spring (223). One end of the rectangular rod (222) is located inside the rectangular hole (212). A movable plate (224) is fixedly provided at one end of the rectangular rod (222). The movable plate (224) is movably clamped inside the rectangular groove (213).

4. The precision forging die for an aircraft engine blade according to claim 3, characterized in that: A second limiting assembly (62) is provided on one side wall of the second L-shaped clamping plate (61); the second limiting assembly (62) has the same structure as the first limiting assembly (22).

5. The precision forging die for aero-engine blades according to claim 4, characterized in that: A first clamping groove (31) is provided on one side wall of the lower template (3), and the first L-shaped clamping plate (21) is clamped inside the first clamping groove (31). A second clamping groove (71) is provided on one side wall of the upper template (7), and the second L-shaped clamping plate (61) is clamped inside the second clamping groove (71).

6. The precision forging die for aero-engine blade according to claim 5, characterized in that: A first limiting groove (32) is provided in the middle of the inner side wall of the first clamping groove (31), one end of the limiting rod (221) is movably inserted into the inner side of the first limiting groove (32), a second limiting groove (72) is provided in the middle of the inner side wall of the second clamping groove (71), and one end of the second limiting component (62) is movably inserted into the inner side of the second limiting groove (72).

7. The precision forging die for aero-engine blade according to claim 6, characterized in that: The size of the upper die convex plate (73) is matched with the size of the lower die pad (37).

8. The precision forging die for aero-engine blade according to claim 7, characterized in that: The inner side wall of the positioning frame (77) is tightly fitted with the outer side wall of the upper die convex plate (73), and the inner side wall of the lower die groove (33) is tightly fitted with the outer side wall of the lower die pad (37).

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