Numerical control machining die for precise casting of flow guide ring

Abstract

The utility model discloses a numerical control machining die for a flow guide ring precision casting, and relates to the technical field of flow guide ring production. The device comprises a workbench, a mounting groove is formed in the top of the workbench, a lower die is fixedly mounted in the mounting groove, a lifting assembly is arranged at the top of the workbench, the output end of the lifting assembly is fixedly connected with an upper die, and a jacking assembly is arranged at the bottom of the inner wall of the lower die. The outer surface of the output end of the lifting assembly is fixedly connected with a pressing assembly. According to the utility model, the upper mold and the jacking assembly can be lifted simultaneously through the lifting assembly and the pressing assembly, so that after the upper mold and the lower mold are completely separated, the flow guide ring is also directly jacked out from the interior of the lower mold by the jacking assembly, and at the moment, the flow guide ring is directly taken out from the jacking assembly; by means of the arrangement, the whole working process of taking out the flow guide ring from the interior of the die is coherent, and meanwhile the efficiency of producing the flow guide ring can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of production of diversion rings, and more specifically, particularly relates to a numerically controlled machining die for precision castings of diversion rings. Background Technique

[0002] The main function of the exhaust cylinder diversion ring is to optimize the air flow, improve the pressure recovery coefficient, and reduce energy loss. The transformation and optimization of the exhaust cylinder diversion ring can improve the aerodynamic performance through improved design. Especially in the low-pressure exhaust cylinder of a steam turbine, the optimization of the diversion ring can significantly increase the pressure recovery coefficient, reduce energy loss, and thus improve the efficiency of the entire system. In the prior art, the production of the diversion ring is generally carried out by injection molding.

[0003] In the Chinese Patent Network CN216938356U, a numerically controlled machining die for diversion ring castings is disclosed, including a lower die. An upper die is arranged inside the lower die. The lower end face of the upper die is closely attached to the inner bottom end of the lower die. The upper end of the outer side wall of the lower die is fixedly connected with a lower connecting ring. The outer side wall of the upper die is fixedly connected with an upper connecting ring. Injection holes are respectively formed through the left and right sides of the upper end face of the upper die. The upper end of the outer side wall of the upper die is fixedly connected with an upper connecting ring. The lower end face of the upper connecting ring is closely attached to the upper end face of the lower connecting ring. Four evenly distributed bolts are detachably connected to the upper end face of the upper connecting ring. The lower connecting ring and the upper connecting ring are detachably connected by four bolts.

[0004] When taking out the injection-molded diversion ring from the inside of the lower die and the upper die, it is necessary to first rotate the bolts to separate the upper die from the lower die, and then take out the guide ring inside the lower die. The entire operation process requires separating the upper and lower dies and then taking out the diversion ring. The two working processes cannot be carried out simultaneously, resulting in low efficiency in the production of the guide ring.

[0005] Regarding the problems in the related art, no effective solution has been proposed yet. Summary of the Utility Model

[0006] Regarding the problems in the related art, the utility model proposes a numerically controlled machining die for precision castings of diversion rings to overcome the above-mentioned technical problems existing in the prior related art.

[0007] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0008] The utility model relates to a numerical control processing die for a precision casting of a flow guiding ring, which comprises a workbench. An installation groove is formed in the top of the workbench, and a lower die is fixedly installed inside the installation groove. A lifting assembly is arranged on the top of the workbench, and the output end of the lifting assembly is fixedly connected with an upper die. A jacking assembly is arranged at the bottom of the inner wall of the lower die, and a pressing assembly is fixedly connected to the outer surface of the output end of the lifting assembly. A cooling assembly is arranged on one side of the upper die. Flow guiding grooves are formed inside the wall bodies of the upper die and the lower die, and the flow guiding grooves penetrate through the workbench.

[0009] Furthermore, the lifting assembly comprises an L-shaped support plate which is fixedly connected to the top of the workbench. A hydraulic cylinder is fixedly installed on the top of the L-shaped support plate. The output end of the hydraulic cylinder penetrates through the L-shaped support plate and is fixedly connected with a connecting frame, and the connecting frame is fixedly connected with the inner wall of the upper die.

[0010] Furthermore, the jacking assembly comprises a jacking ring. A receiving groove is formed in the bottom of the inner wall of the lower die, and the jacking ring is movably connected with the receiving groove. A jacking groove is formed in the bottom of the receiving groove, and an L-shaped jacking column is movably connected inside the jacking groove. The L-shaped jacking column is fixedly connected with the jacking ring. A moving rod is movably connected to the top of the workbench, and the bottom end of the moving rod is fixedly connected with the L-shaped jacking column. A jacking spring is fixedly connected between the top of the L-shaped jacking column and the bottom of the workbench.

[0011] Furthermore, the pressing assembly comprises a pressing plate which is fixedly connected to the outer surface of the output end of the hydraulic cylinder. A pressing rod is fixedly connected to the bottom of the pressing plate corresponding to the moving rod.

[0012] Furthermore, the cooling assembly comprises a cold air blower which is fixedly installed on the back of the L-shaped support plate. A hose is fixedly connected to the back of the cold air blower. One end of the hose is fixedly connected with the upper die. A cold air cavity is formed in the top of the upper die, and the flow guiding grooves on the lower die and the upper die are communicated with the cold air cavity. One end of the hose is located inside the cold air cavity.

[0013] Furthermore, an injection hole is formed in the top of the upper die, and the injection hole penetrates through the cold air cavity. A flow guiding pipe is fixedly connected to the inside of the cold air cavity corresponding to the injection hole. A shunt pipe is fixedly connected to the top of the upper die corresponding to the injection hole, and an injection pipe is fixedly connected to the outer surface of the shunt pipe.

[0014] Furthermore, an installation ring is fixedly connected to the outer surface of the lower die, and the installation ring is fixedly connected to the top of the workbench. Support legs are fixedly connected to the bottom of the workbench.

[0015] The utility model has the following beneficial effects:

[0016] 1. The utility model can press the pressing component downward through the lifting component and the jacking component, so that the jacking ring contacts the bottom inner wall of the lower mold. After the diversion ring is injection-molded, the lifting component drives the upper mold and the pressing component to move upward together, and at this time, the jacking component pressed by the pressing component can also move upward together. As the upper mold, the pressing component and the jacking component continue to rise, the diversion ring inside the lower mold can be jacked out of the lower mold by the jacking component. When the upper mold and the lower mold are completely separated, the diversion ring is directly jacked out of the lower mold by the jacking component. At this time, the diversion ring can be directly taken out from the jacking component. The above setting makes the whole working process of taking out the diversion ring from the mold more coherent, and at the same time improves the production efficiency of the diversion ring.

[0017] 2. The utility model can convey cold air into the cold air cavity through the hose cold air blower, and the cold air inside the cold air cavity can flow downward under the guidance of the diversion grooves provided on the upper mold and the lower mold and flow out from the bottom of the workbench. At this time, the diversion ring is located between the diversion grooves of the upper mold and the lower mold, so that the cold air inside the diversion grooves can cool the inner wall and the outer wall of the diversion ring at the same time. This setting improves the cooling efficiency of the diversion ring inside the mold, and indirectly improves the production efficiency of the diversion ring.

[0018] Of course, it is not necessary for any product implementing the utility model to achieve all the above advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a schematic diagram of the external contour structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the bottom structure of the workbench of the utility model;

[0022] Figure 3 It is a schematic diagram of the structure of the pressing component of the utility model;

[0023] Figure 4 It is a schematic diagram of the structure of the jacking component of the utility model;

[0024] Figure 5 It is a schematic cross-sectional view of the upper and lower molds of the utility model;

[0025] Figure 6 Schematic diagram of the diversion groove structure of the present utility model;

[0026] Figure 7 Top view sectional structure schematic diagram of the upper mold of the present utility model;

[0027] Figure 8 Top view structure schematic diagram of the lower mold of the present utility model.

[0028] In the accompanying drawings, the list of components represented by each reference numeral is as follows:

[0029] 1. Workbench; 2. Installation groove; 3. Lower mold; 4. Lifting assembly; 401. L-shaped support plate; 402. Hydraulic cylinder; 403. Connecting frame; 5. Upper mold; 6. Jacking assembly; 601. Jacking ring; 602. Receiving groove; 603. Jacking groove; 604. L-shaped jacking post; 605. Moving rod; 606. Spring; 7. Pressing assembly; 701. Pressing plate; 702. Pressing rod; 8. Cooling assembly; 801. Air cooler; 802. Hose; 803. Cold air cavity; 9. Diversion groove; 10. Injection hole; 11. Diversion pipe; 12. Shunt pipe; 13. Injection pipe; 14. Installation ring; 15. Support leg. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the utility model.

[0031] In the description of the present utility model, it should be understood that the terms "open hole", "upper", "lower", "top", "middle", "inner", etc. indicating orientation or position relationship are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the utility model.

[0032] Please refer to Figures 1-8As shown in the figure, the utility model is a numerical control machining die for a precision casting of a flow guiding ring, including a workbench 1. An installation groove 2 is opened at the top of the workbench 1, and a lower die 3 is fixedly installed inside the installation groove 2. A lifting assembly 4 is arranged on the top of the workbench 1, and the output end of the lifting assembly 4 is fixedly connected with an upper die 5. A jacking assembly 6 is arranged at the bottom of the inner wall of the lower die 3, and a pressing assembly 7 is fixedly connected to the outer surface of the output end of the lifting assembly 4. A cooling assembly 8 is arranged on one side of the upper die 5. Flow guiding grooves 9 are opened inside the walls of the upper die 5 and the lower die 3, and the flow guiding grooves 9 penetrate through the workbench 1.

[0033] After the injection molding of the flow guiding ring inside the upper die 5 and the lower die 3 is completed, the lifting assembly 4 drives the upper die 5 to move upward, so that the upper die 5 and the lower die 3 are separated. At this time, the pressing assembly 7 also moves upward under the drive of the lifting assembly 4. At this time, since the pressing assembly 7 no longer presses the jacking assembly 6 downward, the jacking assembly 6 can move upward and jack out the injection-molded flow guiding ring inside the lower die 3.

[0034] The jacking end of the jacking assembly 6 can be in contact with the inner wall of the lower die 3 under the pressing of the pressing assembly 7. After the injection molding of the flow guiding ring is completed, the lifting assembly 4 drives the upper die 5 and the pressing assembly 7 to move upward together, and at this time, the jacking assembly 6 pressed by the pressing assembly 7 can also move upward together. As the upper die 5, the pressing assembly 7 and the jacking assembly 6 continue to rise, the flow guiding ring inside the lower die 3 can be jacked out of the lower die 3 by the jacking assembly 6. When the upper die 5 and the lower die 3 are completely separated, the flow guiding ring is directly jacked out of the lower die 3 by the jacking assembly 6. At this time, the flow guiding ring can be directly taken out from the jacking assembly 6. The above settings make the entire work process of taking out the flow guiding ring from the inside of the die more coherent, and at the same time, the production efficiency of the flow guiding ring can be improved.

[0035] In one embodiment, for the above-mentioned lifting assembly 4, the lifting assembly 4 includes an L-shaped support plate 401. The L-shaped support plate 401 is fixedly connected to the top of the workbench 1. A hydraulic cylinder 402 is fixedly installed on the top of the L-shaped support plate 401. The output end of the hydraulic cylinder 402 penetrates through the L-shaped support plate 401 and is fixedly connected with a connecting frame 403. The connecting frame 403 is fixedly connected to the inner wall of the upper die 5.

[0036] By starting the hydraulic cylinder 402, the hydraulic cylinder 402 can drive the upper mold 5 to move up and down on the workbench 1 through the connecting frame 403. The setting of the hydraulic cylinder 402 enables the automatic separation of the upper mold 5 from the lower mold 3. At the same time, the hydraulic cylinder 402 can also play a role in guiding and positioning, so as to ensure the overall effect after the upper mold 5 and the lower mold 3 are in contact with each other.

[0037] In one embodiment, for the above-mentioned jacking assembly 6, the jacking assembly 6 includes a jacking ring 601. A receiving groove 602 is formed at the bottom of the inner wall of the lower mold 3. The jacking ring 601 is movably connected to the receiving groove 602. A jacking groove 603 is formed at the bottom of the receiving groove 602. An L-shaped jacking column 604 is movably connected inside the jacking groove 603. The L-shaped jacking column 604 is fixedly connected to the jacking ring 601. A moving rod 605 is movably connected to the top of the workbench 1. The bottom end of the moving rod 605 is fixedly connected to the L-shaped jacking column 604. A jacking spring 606 is fixedly connected between the top of the L-shaped jacking column 604 and the bottom of the workbench 1. The pressing assembly 7 includes a pressing plate 701. The pressing plate 701 is fixedly connected to the outer surface of the output end of the hydraulic cylinder 402. A pressing rod 702 is fixedly connected to the bottom of the pressing plate 701 corresponding to the moving rod 605.

[0038] When the hydraulic cylinder 402 drives the upper mold 5 to move downward, the pressing rod 702 can squeeze the moving rod 605, so that the L-shaped jacking column 604 at the bottom end of the moving rod 605 pulls the jacking spring 606, and the jacking ring 601 also slides inside the lower mold 3. When the upper mold 5 and the lower mold 3 are in contact with each other, the jacking ring 601 also directly moves into the receiving groove 602. When the guide ring is taken out from the inside of the lower mold 3, the upper mold 5 and the two pressing rods 702 move upward under the drive of the hydraulic cylinder 402. At this time, the jacking spring 606 can pull the L-shaped jacking column 604, so that the moving rod 605 slides on the workbench 1. At the same time, the L-shaped jacking column 604 slides inside the jacking groove 603. At this time, the jacking ring 601 moves out of the receiving groove 602 under the jacking of the L-shaped jacking column 604 and starts to jack the guide ring inside the lower mold 3 upward. The above settings enable the upper mold 5 and the lower mold 3 to be separated while the injection-molded guide ring also moves upward inside the lower mold 3 under the jacking of the jacking ring 601.

[0039] In one embodiment, for the above-mentioned cooling component 8, the cooling component 8 includes a cooling fan 801, the cooling fan 801 is fixedly installed on the back of the L-shaped support plate 401, a hose 802 is fixedly connected to the back of the cooling fan 801, one end of the hose 802 is fixedly connected to the upper mold 5, a cold air cavity 803 is formed at the top of the upper mold 5, the diversion grooves 9 on the lower mold 3 and the upper mold 5 are communicated with the cold air cavity 803, and one end of the hose 802 is located inside the cold air cavity 803.

[0040] Through the hose 802, the cooling fan 801 can convey cold air into the cold air cavity 803, and the cold air inside the cold air cavity 803 can flow downward under the guidance of the diversion grooves 9 provided on the upper mold 5 and the lower mold 3 and flow out from the bottom of the workbench 1. At this time, the diversion ring is located between the diversion grooves 9 of the upper mold 5 and the lower mold 3, so that the cold air inside the diversion grooves 9 can cool the inner wall and the outer wall of the diversion ring simultaneously. This setting can improve the efficiency of cooling the diversion ring inside the mold, and indirectly also improve the efficiency of producing the diversion ring.

[0041] In one embodiment, for the above-mentioned upper mold 5, an injection hole 10 is formed at the top of the upper mold 5, the injection hole 10 penetrates through the cold air cavity 803, a diversion pipe 11 is fixedly connected inside the cold air cavity 803 corresponding to the injection hole 10, a shunt pipe 12 is fixedly connected to the top of the upper mold 5 corresponding to the injection hole 10, and an injection pipe 13 is fixedly connected to the outer surface of the shunt pipe 12.

[0042] Through the injection pipe 13, the injection raw material can flow into the shunt pipe 12. The injection raw material inside the shunt pipe 12 directly flows between the lower mold 3 and the upper mold 5 under the guidance of the injection hole 10 and the diversion pipe 11. Since the shunt pipe 12 is arranged in a ring shape and there are multiple injection holes 10, this setting enables the injection raw material to flow between the upper mold 5 and the lower mold 3 more evenly. The setting of the diversion pipe 11 prevents the injection raw material from flowing into the cold air cavity 803.

[0043] In one embodiment, for the above-mentioned lower mold 3, a mounting ring 14 is fixedly connected to the outer surface of the lower mold 3, the mounting ring 14 is fixedly connected to the top of the workbench 1, and a support leg 15 is fixedly connected to the bottom of the workbench 1.

[0044] Place the lower mold 3 into the installation groove 2. At this time, the mounting ring 14 is in contact with the workbench 1, and then fix the mounting ring 14 to the top of the workbench 1 through bolts. The above setting makes it convenient to install the lower mold 3 on the workbench 1. At the same time, the settings of the installation groove 2 and the support leg 15 enable the cold air flowing down along the diversion groove 9 to be discharged from the bottom of the lower mold 3 normally.

[0045] Through the above technical solutions: 1. The jacking end of the jacking component 6 can press the pressing component 7 downward through the lifting component 4, causing the jacking ring 601 to contact the bottom inner wall of the lower mold 3. After the diversion ring is injection-molded, the lifting component 4 drives the upper mold 5 and the pressing component 7 to move upward together. At this time, the jacking component 6 pressed by the pressing component 7 can also move upward together. As the upper mold 5, the pressing component 7, and the jacking component 6 continue to rise, the diversion ring inside the lower mold 3 can be jacked out of the lower mold 3 by the jacking component 6. When the upper mold 5 is completely separated from the lower mold 3, the diversion ring is directly jacked out of the lower mold 3 by the jacking component 6. At this time, the diversion ring can be directly taken out from the jacking component 6. The above setting makes the entire work process of taking out the diversion ring from the inside of the mold more coherent, and at the same time improves the production efficiency of the diversion ring; 2. Through the hose 802, the cold air blower 801 can convey cold air into the cold air cavity 803. The cold air inside the cold air cavity 803 can flow downward under the guidance of the diversion grooves 9 provided on the upper mold 5 and the lower mold 3 and flow out from the bottom of the workbench 1. At this time, the diversion ring is located between the diversion grooves 9 of the upper mold 5 and the lower mold 3, so that the cold air inside the diversion grooves 9 can cool the inner wall and the outer wall of the diversion ring at the same time. This setting improves the efficiency of cooling the diversion ring inside the mold, and indirectly also improves the production efficiency of the diversion ring.

[0046] In the description of this specification, the descriptions referring to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0047] The preferred embodiments of the utility model disclosed above are only used to help illustrate the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the utility model, so that those skilled in the art can understand and utilize the utility model well. The utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A numerically controlled machining die for a precision casting of a flow guiding ring, comprising a workbench (1), characterized in that, The top of the workbench (1) is provided with a mounting groove (2), a lower mold (3) is fixedly installed inside the mounting groove (2), a lifting assembly (4) is arranged on the top of the workbench (1), the output end of the lifting assembly (4) is fixedly connected with an upper mold (5), a jacking assembly (6) is arranged at the bottom of the inner wall of the lower mold (3), a pressing assembly (7) is fixedly connected to the outer surface of the output end of the lifting assembly (4), a cooling assembly (8) is arranged on one side of the upper mold (5), and diversion grooves (9) are respectively formed inside the walls of the upper mold (5) and the lower mold (3), and the diversion grooves (9) penetrate through the workbench (1).

2. The numerical control machining die for the precision casting of a flow guiding ring according to claim 1, characterized in that, The lifting assembly (4) includes an L-shaped support plate (401), the L-shaped support plate (401) is fixedly connected to the top of the workbench (1), a hydraulic cylinder (402) is fixedly installed on the top of the L-shaped support plate (401), the output end of the hydraulic cylinder (402) penetrates through the L-shaped support plate (401) and is fixedly connected with a connecting frame (403), and the connecting frame (403) is fixedly connected to the inner wall of the upper mold (5).

3. The numerical control machining die for a precision casting of a flow guiding ring according to claim 2, characterized in that, The jacking assembly (6) includes a jacking ring (601), a receiving groove (602) is formed at the bottom of the inner wall of the lower mold (3), the jacking ring (601) is movably connected with the receiving groove (602), a jacking groove (603) is formed at the bottom of the receiving groove (602), an L-shaped jacking column (604) is movably connected inside the jacking groove (603), the L-shaped jacking column (604) is fixedly connected with the jacking ring (601), a moving rod (605) is movably connected to the top of the workbench (1), the bottom end of the moving rod (605) is fixedly connected with the L-shaped jacking column (604), and a jacking spring (606) is fixedly connected between the top of the L-shaped jacking column (604) and the bottom of the workbench (1).

4. The numerical control machining die for a precision casting of a flow guiding ring according to claim 3, characterized in that, The pressing assembly (7) includes a pressing plate (701), the pressing plate (701) is fixedly connected to the outer surface of the output end of the hydraulic cylinder (402), and a pressing rod (702) is fixedly connected to the bottom of the pressing plate (701) corresponding to the moving rod (605).

5. The numerical control machining die for a precision casting of a flow guiding ring according to claim 1, characterized in that, The cooling assembly (8) includes a cold air blower (801), the cold air blower (801) is fixedly installed on the back of the L-shaped support plate (401), a hose (802) is fixedly connected to the back of the cold air blower (801), one end of the hose (802) is fixedly connected with the upper mold (5), a cold air cavity (803) is formed at the top of the upper mold (5), the diversion grooves (9) on the lower mold (3) and the upper mold (5) are communicated with the cold air cavity (803), and one end of the hose (802) is located inside the cold air cavity (803).

6. The numerically controlled machining die for the precision casting of a flow guiding ring according to claim 5, characterized in that, An injection hole (10) is formed in the top of the upper mold (5), the injection hole (10) penetrates through the cold air cavity (803), a diversion pipe (11) is fixedly connected corresponding to the injection hole (10) inside the cold air cavity (803), a shunt pipe (12) is fixedly connected corresponding to the injection hole (10) at the top of the upper mold (5), and an injection pipe (13) is fixedly connected to the outer surface of the shunt pipe (12).

7. A numerical control machining die for a precision casting of a flow guiding ring according to claim 1, characterized in that, An installation ring (14) is fixedly connected to the outer surface of the lower mold (3), the installation ring (14) is fixedly connected to the top of the workbench (1), and a support leg (15) is fixedly connected to the bottom of the workbench (1).

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