Water turbine blade pressing die

Abstract

The utility model discloses a hydraulic turbine blade pressing die which comprises an upper die, a lower die and a movable base, the lower die is arranged above the movable base, the upper end face of the movable base is connected with the lower end face of the lower die, and the upper die is arranged on the upper end face of the lower die. And the lower end surface of the upper mold is clamped with the upper end surface of the lower mold. The water turbine blade demoulding device has the beneficial effect that the water turbine blade can be quickly and completely demoulded.

Description

Technical Field

[0001] The utility model relates to the relevant technical field of pressing dies, in particular to a pressing die for water turbine blades. Background Art

[0002] The original turbine blades were mainly made by casting, the main material was ZG0CR13NI5MO, and then machined; this production had the problems of low material utilization, excessive machining allowance (one side ≥ 50mm), unstable internal quality of castings, mainly reflected in: pores, slag inclusions, unstable composition and mechanical properties. The shape of the pressed turbine blades is distorted, which makes the internal space of the mold irregular, making it difficult to demold the turbine blades.

[0003] The Chinese patent publication number is CN206474577U, and the authorization announcement date is September 8, 2017. A mold for forming a turbine blade is disclosed, including an upper mold, a lower mold, and a press. The upper mold and the lower mold are arranged relative to each other, and the upper mold is connected to the driving mechanism of the press, and the lower mold is located on the frame; an upper forming block is installed directly below the upper mold, and a lower forming block is installed directly above the lower mold. The upper forming block and the lower forming block are pressed together to form the shape of the turbine blade; the upper mold Guide sleeves are provided on both sides of the upper mold, and guide rods are provided on both sides of the lower mold, and the guide sleeves are sleeved in the guide rods and are movably connected; a plate cast by the electroslag casting process is placed on the lower pressure block of the lower mold, and the bottom surface of the plate contacts the lower pressure block of the lower mold, and the front surface of the plate contacts the upper pressure block of the upper mold; the beneficial effects of the utility model are: by casting plates of unequal thickness by the electroslag casting process, and after high-temperature pressing, the workpiece margin is guaranteed to be ≤20mm, thereby ensuring the quality of the turbine blades, and the processing margin is greatly reduced. The utility model has the advantages of high assembly efficiency, high yield rate and high safety. The shortcoming of the utility model is that the demoulding problem is not taken into consideration. If the demoulding cannot be smooth, the qualified production of the turbine blades cannot be guaranteed. Utility Model Content

[0004] The utility model aims to overcome the drawback in the prior art that it is difficult to demould a turbine blade quickly and completely, and provides a turbine blade pressing mold which can demould the turbine blade quickly and completely.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A turbine blade pressing mold comprises an upper mold, a lower mold and a movable base, wherein the lower mold is placed above the movable base, the upper end surface of the movable base is connected to the lower end surface of the lower mold, the upper mold is placed on the upper end surface of the lower mold, and the lower end surface of the upper mold is clamped with the upper end surface of the lower mold.

[0007] During installation, first fix the movable base on the ground, then fix the lower mold on the upper end surface of the movable base, and finally align the upper mold with the lower mold and fix the upper end surface of the upper mold to the ceiling of the workshop; during use, first connect the lower mold tightly with the movable base, then buckle the upper mold with the lower mold, and then inject the material of the turbine blades through the upper mold, and after molding, separate the movable base from the lower mold to allow air to enter, so that the turbine blades in the mold can be separated from the upper mold and the lower mold. Lift the upper mold to easily take out the turbine blades, thereby achieving the purpose of quickly and completely demolding the turbine blades.

[0008] Preferably, a clamping strip is provided on the lower end surface of the upper mold, and the clamping strip is fixedly connected to the lower end surface of the upper mold. A clamping groove is provided on the upper end surface of the lower mold, and the clamping groove corresponds to the clamping strip. The lower end surface of the upper mold is clamped with the upper end surface of the lower mold through the cooperation of the clamping groove and the clamping strip. The clamping strip and the clamping groove can align the upper mold and the lower mold for easy installation.

[0009] Preferably, the movable base is provided with a plurality of grooves evenly distributed on the upper end surface of the movable base, a lifting member is provided in the groove, and the upper end surface of the lifting member is fixedly connected to the lower end surface of the lower mold. The groove can store the lifting member so that the lower mold can contact the movable base.

[0010] Preferably, the lifting member comprises a lifting motor 1 and a lifting rod 1, the lower end surface of the lifting rod 1 is fixedly connected to the upper end surface of the lifting motor 1, the lower end surface of the lifting motor 1 is fixedly connected to the inner bottom surface of the groove, and the upper end surface of the lifting rod 1 is fixedly connected to the lower end surface of the lower mold. The lifting motor 1 can separate and contact the lower mold and the movable base through the lifting rod 1, so as to facilitate the separation of the water wheel blades from the mold.

[0011] Preferably, both the upper mold and the lower mold are provided with mold grooves, and the upper mold is also provided with an injection tube, the mold groove located in the upper mold is placed on the lower end surface of the upper mold, and the mold groove located in the lower mold is placed on the upper end surface of the lower mold, the mold groove of the upper mold corresponds to the mold groove of the lower mold, the injection tube is placed on the outer side surface of the upper mold and is fixedly connected to the outer side surface of the upper mold, the injection tube is connected to the mold groove of the upper mold, and the mold groove of the lower mold is provided with a plurality of through holes, and the upper end surface of the movable base is provided with a plurality of blocking blocks, the blocking blocks correspond to the through holes one by one, the upper end surface shape of the blocking blocks corresponds to the mold groove of the lower mold, the lower end surface of the blocking blocks is fixedly connected to the upper end surface of the movable base, and the outer side surface of the blocking blocks contacts the inner wall of the through hole. The blocking blocks and the through holes can conveniently block the gap of the mold groove during pressing, and when the finished product needs to be taken out, the blocking blocks and the through holes are separated to allow air to enter.

[0012] Preferably, the upper mold is provided with an upper fixed plate, a second lifting motor and a second lifting rod, the lower end surface of the second lifting rod is fixedly connected to the upper end surface of the upper mold, the upper end surface of the second lifting rod is fixedly connected to the lower end surface of the upper fixed plate, the second lifting motor is fixedly connected to the lower end surface of the upper fixed plate, and the second lifting motor is connected to the second lifting rod. The second lifting motor and the second lifting rod can lift the upper mold according to the emptying during operation.

[0013] The beneficial effects of the utility model are: the turbine blades can be demoulded quickly and completely; the clamping strips and the clamping grooves can align the positions of the upper mold and the lower mold for easy installation; the grooves can store the lifting parts so that the lower mold can contact the movable base; the lifting motor 1 can separate and contact the lower mold and the movable base through the lifting rod 1, which is convenient for separating the turbine blades from the mold; the blocking block and the through hole can conveniently block the gap of the mold groove during pressing, and when the finished product needs to be taken out, the blocking block and the through hole are separated to allow air to enter; the lifting motor 2 and the lifting rod 2 can lift the upper mold according to the emptying during work. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a cross-sectional view of the main view of the utility model;

[0016] Figure 3 yes Figure 2 An enlarged view of detail A;

[0017] Figure 4 yes Figure 2 Detail B is an enlarged view.

[0018] In the figure: 1. upper mold, 2. lower mold, 3. movable base, 4. clamping strip, 5. clamping slot, 6. groove, 7. lifting motor 1, 8. lifting rod 1, 9. mold slot, 10. through hole, 11. blocking block, 12. upper fixed plate, 13. lifting motor 2, 14. lifting rod 2, 15. liquid injection pipe. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0020] like Figure 1 and Figure 2 In the embodiment of the present invention, a turbine blade pressing mold is provided, which includes an upper mold 1, a lower mold 2 and a movable base 3, the lower mold 2 is placed above the movable base 3, the upper end surface of the movable base 3 is connected to the lower end surface of the lower mold 2, the upper mold 1 is placed on the upper end surface of the lower mold 2, and the lower end surface of the upper mold 1 is clamped with the upper end surface of the lower mold 2.

[0021] like Figure 2 and Figure 3 As shown, a clamping strip 4 is provided on the lower end face of the upper mold 1, and the clamping strip 4 is fixedly connected to the lower end face of the upper mold 1. A clamping groove 5 is provided on the upper end face of the lower mold 2, and the clamping groove 5 corresponds to the clamping strip 4. The lower end face of the upper mold 1 is clamped with the upper end face of the lower mold 2 through the cooperation of the clamping groove 5 and the clamping strip 4.

[0022] like Figure 3 As shown, the movable base 3 is provided with a plurality of grooves 6 evenly distributed on the upper end surface of the movable base 3 , a lifting member is provided in the groove 6 , and the upper end surface of the lifting member is fixedly connected to the lower end surface of the lower mold 2 .

[0023] like Figure 2 and Figure 3 As shown, the lifting component includes a lifting motor 7 and a lifting rod 8, the lower end surface of the lifting rod 8 is fixedly connected to the upper end surface of the lifting motor 7, the lower end surface of the lifting motor 7 is fixedly connected to the inner bottom surface of the groove 6, and the upper end surface of the lifting rod 8 is fixedly connected to the lower end surface of the lower mold 2.

[0024] like Figure 2 and Figure 4 As shown, both the upper mold 1 and the lower mold 2 are provided with mold grooves 9, and the upper mold 1 is also provided with an injection tube 15. The mold groove 9 located on the upper mold 1 is placed on the lower end surface of the upper mold 1, and the mold groove 9 located on the lower mold 2 is placed on the upper end surface of the lower mold 2. The mold groove 9 of the upper mold 1 corresponds to the mold groove 9 of the lower mold 2, and the injection tube 15 is placed on the outer side surface of the upper mold 1 and fixedly connected to the outer side surface of the upper mold 1. The injection tube 15 is connected to the mold groove 9 of the upper mold 1, and a plurality of through holes 10 are provided in the mold groove 9 of the lower mold 2. A plurality of blocking blocks 11 are provided on the upper end surface of the movable base 3, and the blocking blocks 11 correspond one-to-one to the through holes 10. The shape of the upper end surface of the blocking blocks 11 corresponds to the mold groove 9 of the lower mold 2, and the lower end surface of the blocking blocks 11 is fixedly connected to the upper end surface of the movable base 3, and the outer side surface of the blocking blocks 11 contacts the inner wall of the through hole 10.

[0025] like Figure 1 and Figure 2 As shown, the upper mold 1 is provided with an upper fixed plate 12, a lifting motor 13 and a lifting rod 14, the lower end surface of the lifting rod 14 is fixedly connected to the upper end surface of the upper mold 1, the upper end surface of the lifting rod 14 is fixedly connected to the lower end surface of the upper fixed plate 12, the lifting motor 13 is fixedly connected to the lower end surface of the upper fixed plate 12, and the lifting motor 13 is connected to the lifting rod 14.

[0026] During installation, first fix the lower end surface of the movable base 3 on the ground, then make the lower end surface of the lower mold 2 contact with the upper end surface of the movable base 3, place the block 11 in the through hole 10 and correspond one to one, finally align the mold groove 9 on the upper mold 1 with the mold groove 9 of the lower mold 2, and then make the upper fixed plate 12 on the upper mold 1 fixedly connected to the ceiling of the workshop; when in use, first lower the lower mold 2 through the lifting motor 1 7 and the lifting rod 1 8 in the groove 6 until it is closely connected with the upper end surface of the movable base 3, and then move the upper mold through the lifting motor 2 13 and the lifting rod 2 14 1, let the clamping strip 4 on the upper mold 1 and the clamping groove 5 on the lower mold 2 buckle together, and then inject the material of the turbine blade through the injection pipe 15. After the turbine blade is formed, let the lifting motor 1 7 and the lifting rod 1 8 repeatedly lift and lower the mold 2, so that the through hole 10 and the blocking block 11 can move repeatedly to allow air to enter, so that the turbine blade in the mold groove 9 can be easily separated from the upper mold 1 and the lower mold 2. The lifting motor 2 13 and the lifting rod 2 14 can lift the upper mold 1, so it is very convenient to take out the turbine blade, so as to achieve the purpose of rapid and complete demoulding of the turbine blade.

Claims

1. A turbine blade pressing die, characterized in that: The invention comprises an upper mold (1), a lower mold (2) and a movable base (3), wherein the lower mold (2) is placed above the movable base (3), the upper end surface of the movable base (3) is connected to the lower end surface of the lower mold (2), the upper mold (1) is placed on the upper end surface of the lower mold (2), and the lower end surface of the upper mold (1) is clamped with the upper end surface of the lower mold (2).

2. A turbine blade pressing die according to claim 1, characterized in that: A clamping strip (4) is provided on the lower end surface of the upper mold (1), and the clamping strip (4) is fixedly connected to the lower end surface of the upper mold (1). A clamping groove (5) is provided on the upper end surface of the lower mold (2), and the clamping groove (5) corresponds to the clamping strip (4). The lower end surface of the upper mold (1) is clamped with the upper end surface of the lower mold (2) through the cooperation of the clamping groove (5) and the clamping strip (4).

3. The turbine blade pressing die according to claim 1, characterized in that: The movable base (3) is provided with a plurality of grooves (6) which are evenly distributed on the upper end surface of the movable base (3); a lifting member is provided in the groove (6); and the upper end surface of the lifting member is fixedly connected to the lower end surface of the lower mold (2).

4. A turbine blade pressing die according to claim 3, characterized in that: The lifting component comprises a lifting motor (7) and a lifting rod (8), the lower end surface of the lifting rod (8) being fixedly connected to the upper end surface of the lifting motor (7), the lower end surface of the lifting motor (7) being fixedly connected to the inner bottom surface of the groove (6), and the upper end surface of the lifting rod (8) being fixedly connected to the lower end surface of the lower mold (2).

5. The turbine blade pressing die according to claim 1, characterized in that: The upper mold (1) and the lower mold (2) are both provided with a mold groove (9), and the upper mold (1) is also provided with a liquid injection pipe (15). The mold groove (9) located in the upper mold (1) is placed on the lower end surface of the upper mold (1), and the mold groove (9) located in the lower mold (2) is placed on the upper end surface of the lower mold (2). The mold groove (9) of the upper mold (1) corresponds to the mold groove (9) of the lower mold (2). The liquid injection pipe (15) is placed on the outer side surface of the upper mold (1) and is fixedly connected to the outer side surface of the upper mold (1). The liquid injection pipe (15) 15) is connected to the mold groove (9) of the upper mold (1), and a plurality of through holes (10) are provided in the mold groove (9) of the lower mold (2). A plurality of blocking blocks (11) are provided on the upper end surface of the movable base (3), and the blocking blocks (11) correspond to the through holes (10) one by one. The shape of the upper end surface of the blocking blocks (11) corresponds to the mold groove (9) of the lower mold (2), the lower end surface of the blocking blocks (11) is fixedly connected to the upper end surface of the movable base (3), and the outer side surface of the blocking blocks (11) contacts the inner wall of the through hole (10).

6. The turbine blade pressing die according to claim 1, characterized in that: The upper mold (1) is provided with an upper fixed plate (12), a second lifting motor (13) and a second lifting rod (14); the lower end surface of the second lifting rod (14) is fixedly connected to the upper end surface of the upper mold (1); the upper end surface of the second lifting rod (14) is fixedly connected to the lower end surface of the upper fixed plate (12); the second lifting motor (13) is fixedly connected to the lower end surface of the upper fixed plate (12); and the second lifting motor (13) is connected to the second lifting rod (14).

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