Lace turbine precision casting mold

Abstract

The utility model relates to the technical field of turbine casting molds, and discloses a lace turbine precision casting mold which comprises an upper mold plate, a lower mold plate is installed at the bottom end of the upper mold plate, first L-shaped plates are fixedly connected to the two sides of the upper mold plate, and second L-shaped plates are fixedly connected to the two sides of the lower mold plate. When an upper mold plate presses a lower mold plate and injects molding liquid inwards, a first L-shaped plate slides into the inner wall of a second L-shaped plate, a clamping block moves towards the interior of a first sliding groove, when the clamping block moves into a second sliding groove, elastic force stored by an elastic spring is released to drive the clamping block to pop out of the second sliding groove, and the first L-shaped plate is limited; and after injection molding is completed, a pressing plate is pressed inwards to drive a sliding rod to abut against a clamping block so that limiting of a first L-shaped plate can be relieved, the situation that a gap is generated between the upper mold plate and the lower mold plate due to thermal expansion and cold contraction in the injection molding process of the lace turbine can be avoided, and burrs are prevented from being generated due to injection of forming liquid.

Description

Technical Field

[0001] The utility model relates to the technical field of turbine casting molds, in particular to a lace turbine precision casting mold. Background Art

[0002] Turbine casting molds are mainly used to manufacture parts of turbine engines or turbochargers, such as turbine blades, turbine shells, etc. These parts usually require precise shapes and sizes, so the design and manufacturing process of turbine casting molds is very critical.

[0003] A Chinese patent discloses a turbine casing casting mold (authorization announcement number CN208929138U). The patented technology uses movable outer cores one, two and three to drive the movable outer cores one, two and three to move. When the mold is opened, the movable outer cores one, two and three are separated from the turbine casing, reducing the subsequent core removal steps and workload of the turbine casing, making it easy to use, and the movable outer cores one, two and three can be reused, saving costs.

[0004] With respect to the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: when the existing turbine casting mold is being injected, due to the high temperature of the injection liquid, there is a certain probability that the turbine will expand, resulting in a gap between the upper mold plate and the lower mold plate, causing the injection liquid to enter and cause burrs to appear on the edge of the turbine, thus affecting the casting qualification rate of the turbine. Utility Model Content

[0005] The technical problem to be solved by the utility model is that in the prior art, due to the thermal expansion and contraction of the turbine, burrs may appear on the edge of the turbine. For this reason, we propose a precision casting mold for a lace turbine.

[0006] In order to achieve the above-mentioned objectives, the present application adopts the following technical scheme: a lace turbine precision casting mold, comprising an upper template, a lower template is installed at the bottom end of the upper template, both sides of the upper template are fixedly connected to a first L-shaped plate, both sides of the lower template are fixedly connected to a second L-shaped plate, the front end and the rear end of the first L-shaped plate are provided with a first sliding groove, the interior of the first sliding groove is fixedly connected with an elastic spring, the front end of the elastic spring is fixedly connected with a block, the front end and the rear end of the second L-shaped plate are provided with a second sliding groove, the interior of the second sliding groove is slidably connected with a sliding rod, the end of the sliding rod away from the second L-shaped plate is fixedly connected to a pressing plate, the surface of the sliding rod is slidably connected to a limiting spring, the end of the limiting spring close to the second L-shaped plate is fixedly connected to the second L-shaped plate, and the end of the limiting spring away from the second L-shaped plate is fixedly connected to the pressing plate.

[0007] Preferably, the front end and the rear end of the first L-shaped plate are fixedly connected with a first sliding block, the front end and the rear end inside the second L-shaped plate are provided with a first sliding groove, and the interior of the first sliding groove is slidably connected with the first sliding block.

[0008] Preferably, a second sliding groove is provided at the top and bottom of the second sliding groove, a second sliding block is fixedly connected to the top and bottom of the sliding rod, and a second sliding block is slidably connected to the inside of the second sliding groove.

[0009] Preferably, a liquid cooling circulation groove is provided inside the lower template, and a circulation mechanism is installed at the front end of the lower template.

[0010] Preferably, a temperature sensor is installed at the front end of the circulation mechanism.

[0011] Preferably, the material of the upper template and the lower template is P alloy.

[0012] Preferably, the surfaces of the upper template and the lower template are sprayed with silicon carbide.

[0013] Technical effects and advantages of the utility model:

[0014] In the utility model, when the upper template presses the lower template and injects molding liquid inwardly, the first L-shaped plate slides into the inner wall of the second L-shaped plate. At this time, the card block moves toward the inside of the first sliding groove. When it moves to the second sliding groove, the elastic force stored in the elastic spring is released to drive the card block to pop out into the second sliding groove, so that the first L-shaped plate is limited. After the injection molding is completed, the pressing plate is pressed inwardly to drive the sliding rod to press against the card block to release the limit of the first L-shaped plate. This can prevent the lace turbine from generating a gap between the upper template and the lower template due to thermal expansion and contraction during the injection molding process, and prevent burrs from being generated when the molding liquid is injected.

[0015] In the utility model, the liquid cooling circulation groove and the circulation mechanism are arranged so that the coolant can form a circulation effect when moving inside the liquid cooling circulation groove, so that the lace turbine can reduce the heat through the circulation of the coolant during injection molding, thereby preventing excessive heat from reducing the injection molding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the mold of the utility model;

[0017] Figure 2 It is a cross-sectional schematic diagram of the limiting structure of the utility model;

[0018] Figure 3 For this utility model Figure 2 A partial enlarged view of the middle A;

[0019] Figure 4 For this utility model Figure 2A partial enlarged view of point B in the middle;

[0020] Figure 5 It is a cross-sectional schematic diagram of the liquid cooling structure of the utility model;

[0021] Figure 6 For this utility model Figure 1 A partial enlarged view of point C in the middle.

[0022] Legend: 1. Upper template; 2. Lower template; 3. First L-shaped plate; 4. Second L-shaped plate; 5. First sliding groove; 6. Elastic spring; 7. Block; 8. Second sliding groove; 9. Sliding rod; 10. Pressing plate; 11. Limiting spring; 12. First sliding block; 13. First sliding groove; 14. Second sliding groove; 15. Second sliding block; 16. Liquid cooling circulation groove; 17. Circulation mechanism; 18. Temperature sensor. DETAILED DESCRIPTION

[0023] The present invention will now be further described in detail in conjunction with the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0024] Reference Figure 1 - Figure 4 As shown, the utility model provides a technical solution: a lace turbine precision casting mold, comprising an upper template 1, a lower template 2 is installed at the bottom end of the upper template 1, both sides of the upper template 1 are fixedly connected with a first L-shaped plate 3, both sides of the lower template 2 are fixedly connected with a second L-shaped plate 4, the front end and rear end of the first L-shaped plate 3 are provided with a first sliding groove 5, the interior of the first sliding groove 5 is fixedly connected with an elastic spring 6, the front end of the elastic spring 6 is fixedly connected with a clamping block 7, the front end and rear end of the second L-shaped plate 4 are provided with a second sliding groove 8, the interior of the second sliding groove 8 is slidably connected with a sliding rod 9, the end of the sliding rod 9 away from the second L-shaped plate 4 is fixedly connected with a pressing plate 10, the surface of the sliding rod 9 is slidably connected with a limiting spring 11, and the limiting spring 11 is close to the second One end of the L-shaped plate 4 is fixedly connected to the second L-shaped plate 4, and the end of the limit spring 11 away from the second L-shaped plate 4 is fixedly connected to the pressing plate 10. When the upper template 1 presses the lower template 2 and injects molding liquid inward, the first L-shaped plate 3 slides into the inner wall of the second L-shaped plate 4. At this time, the block 7 moves toward the inside of the first sliding groove 5. When it moves to the second sliding groove 8, the elastic force stored in the elastic spring 6 is released to drive the block 7 to pop out into the second sliding groove 8, so that the first L-shaped plate 3 is limited. After the injection molding is completed, the pressing plate 10 is pressed inward to drive the sliding rod 9 to press against the block 7 to release the limit of the first L-shaped plate 3. This can prevent the lace turbine from generating a gap between the upper template 1 and the lower template 2 due to thermal expansion and contraction during the injection molding process, and prevent burrs from being generated when the molding liquid is injected.

[0025] Reference Figure 3 and Figure 4 As shown, in the present embodiment: the front end and the rear end of the first L-shaped plate 3 are fixedly connected with the first slider 12, the front end and the rear end inside the second L-shaped plate 4 are provided with a first slide groove 13, the interior of the first slide groove 13 is slidably connected with the first slider 12, and through the arrangement of the first slider 12 and the first slide groove 13, the first L-shaped plate 3 can form a stable limit with the interior of the second L-shaped plate 4 when sliding into the second L-shaped plate 4, thereby improving the stability of the first L-shaped plate 3 when sliding in.

[0026] Reference Figure 4 As shown, in this embodiment: a second slide groove 14 is provided at the top and bottom ends inside the second slide groove 8, a second slider 15 is fixedly connected to the top and bottom ends of the slide rod 9, and the second slider 15 is slidably connected inside the second slide groove 14. Through the arrangement of the second slide groove 14 and the second slider 15, the slide rod 9 can form a stable limit when moving inside the second slide groove 8, thereby improving the efficiency of the block 7 when releasing the limit.

[0027] Reference Figure 5 and Figure 6 As shown, in this embodiment: a liquid cooling circulation groove 16 is opened inside the lower template 2, and a circulation mechanism 17 is installed at the front end of the lower template 2. The arrangement of the liquid cooling circulation groove 16 and the circulation mechanism 17 can form a circulation effect when the coolant moves inside the liquid cooling circulation groove 16, so that the lace turbine can reduce the heat through the circulation of the coolant during injection molding, thereby preventing excessive heat from reducing the injection molding effect.

[0028] Reference Figure 6 As shown, in this embodiment: a temperature sensor 18 is installed at the front end of the circulation mechanism 17. Through the setting of the temperature sensor 18, when the lace turbine injection molding temperature is different, the temperature sensor 18 can detect the temperature thereof, thereby adjusting the speed of the coolant circulation and improving the cooling efficiency.

[0029] Reference Figure 1 As shown, in this embodiment: the material of the upper template 1 and the lower template 2 is P20 alloy. Since P20 alloy has good wear resistance, the service life of the upper template 1 and the lower template 2 can be increased and the friction generated when the upper template 1 and the lower template 2 are pressed downward can be avoided to cause wear of the inner core.

[0030] Reference Figure 1 As shown, in this embodiment: the surfaces of the upper template 1 and the lower template 2 are sprayed with silicon carbide. Since silicon carbide has good heat resistance, the upper template 1 and the lower template 2 will not be damaged by cracking on the surface due to overheating of the molding liquid during use, thereby improving the service life.

[0031] When the upper mold plate 1 is pressed against the lower mold plate 2 and the molding liquid is injected inwardly, the first L-shaped plate 3 slides into the inner wall of the second L-shaped plate 4. At this time, the card block 7 moves toward the inside of the first sliding groove 5. When it moves into the second sliding groove 8, the elastic force stored in the elastic spring 6 is released to drive the card block 7 to pop out into the second sliding groove 8, so that the first L-shaped plate 3 is limited. After the injection molding is completed, the pressing plate 10 is pressed inwardly to drive the sliding rod 9 to press against the card block 7 to release the first L-shaped plate 3 from being limited. This can prevent the lace turbine from generating a gap between the upper mold plate 1 and the lower mold plate 2 due to thermal expansion and contraction during the injection molding process, and prevent burrs from being generated when the molding liquid is injected. Through the arrangement of the first sliding block 12 and the first sliding groove 13, the first L-shaped plate 3 can form a stable limit with the inside of the second L-shaped plate 4 when sliding into the second L-shaped plate 4, thereby improving the stability of the first L-shaped plate 3 when sliding in. Through the arrangement of the second sliding groove 14 and the second sliding block 15, the sliding rod 9 can be When the second sliding groove 8 moves inside, a stable limit is formed, which improves the efficiency of the block 7 when releasing the limit. Through the arrangement of the liquid cooling circulation groove 16 and the circulation mechanism 17, the coolant can form a circulation effect when moving inside the liquid cooling circulation groove 16, so that the lace turbine can reduce the heat through the circulation of the coolant during injection molding, and prevent the injection molding effect from being reduced by excessive heat. Through the arrangement of the temperature sensor 18, when the injection molding temperature of the lace turbine is different, the temperature sensor 18 can detect the temperature thereof, thereby adjusting the speed of the coolant circulation and improving the cooling efficiency. Because the P20 alloy has good wear resistance, the service life of the upper template 1 and the lower template 2 can be increased and the friction force generated when the upper template 1 and the lower template 2 are pressed down to avoid the wear of the inner core. Because silicon carbide has good heat resistance, the upper template 1 and the lower template 2 will not be damaged by cracking on the surface of the upper template 1 and the lower template 2 due to overheating of the molding liquid during use, thereby improving the service life.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lace turbine precision casting mold, comprising an upper mold plate (1), characterized in that: A lower template (2) is installed at the bottom end of the upper template (1); first L-shaped plates (3) are fixedly connected to both sides of the upper template (1); second L-shaped plates (4) are fixedly connected to both sides of the lower template (2); first sliding grooves (5) are provided at the front and rear ends of the first L-shaped plate (3); elastic springs (6) are fixedly connected inside the first sliding grooves (5); a clamping block (7) is fixedly connected to the front end of the elastic springs (6); and the front and rear ends of the second L-shaped plate (4) are fixedly connected to the front and rear ends of the first L-shaped plate (3). A second sliding groove (8) is provided, the interior of the second sliding groove (8) is slidably connected to a sliding rod (9), one end of the sliding rod (9) away from the second L-shaped plate (4) is fixedly connected to a pressing plate (10), the surface of the sliding rod (9) is slidably connected to a limiting spring (11), one end of the limiting spring (11) close to the second L-shaped plate (4) is fixedly connected to the second L-shaped plate (4), and one end of the limiting spring (11) away from the second L-shaped plate (4) is fixedly connected to the pressing plate (10).

2. The lace turbine precision casting mold according to claim 1 is characterized in that: The front end and the rear end of the first L-shaped plate (3) are both fixedly connected to a first sliding block (12), the front end and the rear end inside the second L-shaped plate (4) are both provided with a first sliding groove (13), and the interior of the first sliding groove (13) is slidably connected to the first sliding block (12).

3. The lace turbine precision casting mold according to claim 1 is characterized in that: The second sliding groove (14) is provided at the top and bottom of the second sliding groove (8), the top and bottom of the sliding rod (9) are fixedly connected with a second sliding block (15), and the second sliding groove (14) is slidably connected with the second sliding block (15).

4. The lace turbine precision casting mold according to claim 1 is characterized in that: A liquid cooling circulation groove (16) is provided inside the lower template (2), and a circulation mechanism (17) is installed at the front end of the lower template (2).

5. The lace turbine precision casting mold according to claim 4 is characterized in that: A temperature sensor (18) is installed at the front end of the circulation mechanism (17).

6. The lace turbine precision casting mold according to claim 1 is characterized in that: The upper template (1) and the lower template (2) are made of P20 alloy.

7. The lace turbine precision casting mold according to claim 1 is characterized in that: The surfaces of the upper template (1) and the lower template (2) are both sprayed with silicon carbide.

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