Cast-aluminum rotor production device

Abstract

The utility model discloses a cast-aluminum rotor production device, and belongs to the technical field of cast-aluminum rotor production. The cast-aluminum rotor production device comprises a fixed mold unit which comprises a first fixed mold plate and a second fixed mold plate which are overlapped in sequence; the movable mold unit comprises a first movable mold plate, a second movable mold plate and a third movable mold plate which are sequentially overlapped, and the first fixed mold plate and the first movable mold plate are buckled to form a casting cavity; the heating unit comprises a plurality of heating pipelines, and the plurality of heating pipelines are respectively arranged in the fixed mold unit and the movable mold unit; and the heat preservation unit comprises a plurality of heat preservation pipelines, and the heat preservation pipelines are arranged on the first fixed mold plate and the third movable mold plate correspondingly. The technical problem that the casting quality of the aluminum strip in the rotor is low is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to cast aluminium rotor production technical field, especially cast aluminium rotor production device. BACKGROUND

[0002] A motor is composed of a stator and a rotor, wherein the rotor is a rotating part in the motor. The working principle of the motor rotor is based on the principle of electromagnetic induction and electromagnetic force. When the stator is powered to generate a rotating magnetic field, the conductor (winding or squirrel cage bar) in the rotor induces current in the magnetic field. These induced currents interact with the stator magnetic field to generate electromagnetic torque, thereby causing the rotor to start rotating.

[0003] In the production process of the rotor, the aluminum bars are usually formed in the iron core by casting. The casting quality of the rotor directly affects the working quality of the rotor. Therefore, how to improve the casting quality of the aluminum bars in the rotor is a problem to be solved in the production process of the rotor. UTILITY MODEL CONTENT

[0004] The main purpose of the utility model is to provide a cast aluminium rotor production device, which aims to improve the casting quality of the aluminum bars in the production process of the rotor.

[0005] To achieve the above-mentioned purpose, the cast aluminium rotor production device provided by the utility model is used for casting the cast aluminium rotor, and comprises:

[0006] A fixed mold unit comprises a first fixed mold plate and a second fixed mold plate which are stacked in sequence;

[0007] A movable mold unit comprises a first movable mold plate, a second movable mold plate and a third movable mold plate which are stacked in sequence, and the first fixed mold plate and the first movable mold plate are fastened to form a casting cavity;

[0008] A heating unit comprises a plurality of heating pipelines, and the plurality of heating pipelines are arranged in the fixed mold unit and the movable mold unit, respectively;

[0009] A heat preservation unit comprises a plurality of heat preservation pipelines, and the plurality of heat preservation pipelines are arranged in the first fixed mold plate and the third movable mold plate, respectively.

[0010] Optionally, in an embodiment of the utility model, a vacuum pipeline is also provided, one end of the vacuum pipeline is communicated with the external environment, and the other end is communicated with the casting cavity.

[0011] Optionally, in an embodiment of the utility model, the first fixed mold plate and the first movable mold plate both comprise an anti-explosion plate, two opposite anti-explosion plates can be fastened, and the anti-explosion plate is provided with the vacuum pipeline.

[0012] Optionally, in an embodiment of the utility model, the first movable mold plate includes at least two sliding clamping blocks, the sliding clamping block has a clamping position close to the first movable mold plate core and a blanking position away from the first movable mold plate core, the sliding clamping block includes a locking block, the first fixed mold plate is provided with a locking groove, and the locking block at the clamping position can extend into the locking groove.

[0013] Optionally, in an embodiment of the utility model, the sliding clamping block further includes a sliding positioning rod, the first fixed mold plate is provided with a sliding positioning groove, the sliding positioning groove has a sliding section and an abutting section, the sliding positioning rod extends into the sliding positioning groove, and the sliding positioning rod moves from the clamping position to the blanking position.

[0014] Optionally, in an embodiment of the utility model, the first fixed mold plate includes a shunt plate and a casting liquid pipeline, the shunt plate is communicated with the casting liquid pipeline, and the first fixed mold plate is arranged with:

[0015] a fourth heat preservation pipeline, the fourth heat preservation pipeline surrounds the shunt plate;

[0016] a third heating pipeline, the third heating pipeline is in a cross structure;

[0017] a fifth heating pipeline, the fifth heating pipeline is adjacent to the casting liquid pipeline.

[0018] Optionally, in an embodiment of the utility model, the first fixed mold plate and the second fixed mold plate are covered to form a heating cavity, and the second fixed mold plate is arranged with:

[0019] a first heating pipeline, which is in a surrounding configuration;

[0020] a second heating pipeline, which is communicated with the heating cavity;

[0021] a twelfth heating pipeline, which is adjacent to a casting liquid inlet.

[0022] Optionally, in an embodiment of the utility model, the first movable mold plate is arranged with an eighth heating pipeline, and the first movable mold plate includes a fixed supporting block, and the eighth heating pipeline extends into the fixed supporting block.

[0023] Optionally, in an embodiment of the utility model, the second movable mold plate is arranged with:

[0024] a sixth heating pipeline, which is in a surrounding configuration;

[0025] a seventh heating pipeline, and the second movable mold plate includes a ejector pin plate, and the seventh heating pipeline is communicated with the ejector pin plate.

[0026] Optionally, in an embodiment of the utility model, the third movable mold plate is internally arranged with the eleventh heat preservation pipeline.

[0027] Compared with the prior art, the utility model can realize at least the following beneficial effects. The mode adopted for the aluminum strip casting of the iron core in the scheme is mold casting. The temperature of the aluminum liquid in the holding furnace before casting is usually about 700 DEG C, and the solidification temperature of the aluminum liquid is 660 DEG C, and the difference between the two is small. Therefore, the solidification speed of the aluminum liquid after casting is fast. In order to prevent the aluminum liquid from starting to solidify before the casting cavity is completely filled, heating pipelines are arranged in each mold plate of the fixed mold unit and the movable mold unit. The fixed mold unit and the movable mold unit are preheated before casting, so as to slow down the solidification speed of the aluminum liquid in the casting cavity and improve the casting quality. In order to further improve the casting quality, the aluminum liquid is high-pressure aluminum liquid when entering the casting cavity. Under the promotion of pressure, the aluminum liquid can flow to all parts of the casting cavity quickly, thereby improving the casting quality. In addition, in order to prevent the overall temperature of the production device from being too high due to casting, a plurality of heat preservation pipelines are arranged. The heat preservation pipelines are opened for a long time, so as to control the overall temperature of the device. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model. Those skilled in the art can also obtain other drawings according to the structures shown in these drawings without creating any creative labor.

[0029] Figure 1 It is a structural schematic view of the cast aluminum rotor production device of the utility model;

[0030] Figure 2 It is a structural schematic view of another perspective of the cast aluminum rotor production device of the utility model;

[0031] Figure 3 It is a perspective view of the first fixed mold plate in the cast aluminum rotor production device of the utility model;

[0032] Figure 4 It is a perspective view of the second fixed mold plate in the cast aluminum rotor production device of the utility model;

[0033] Figure 5 It is a perspective view of the first movable mold plate in the cast aluminum rotor production device of the utility model;

[0034] Figure 6 It is a perspective view of the second movable mold plate in the cast aluminum rotor production device of the utility model;

[0035] Figure 7The utility model discloses a perspective view of the third movable mold plate of the cast aluminum rotor production device.

[0036] Explanation of reference numerals:

[0037] 100, fixed mold unit;110, first fixed mold plate;120, second fixed mold plate;200, movable mold unit;210, first movable mold plate;220, second movable mold plate;230, third movable mold plate;300, No. heating pipeline;310, No. heating pipeline;320, No. heating pipeline;330, No. five heating pipeline;340, No. six heating pipeline;350, No. seven heating pipeline;360, No. eight heating pipeline;370, No. twelve heating pipeline;410, No. four heat preservation pipeline;420, No. eleven heat preservation pipeline;500, anti-explosion board;510, vacuum pipeline;600, sliding clamping block;610, locking block;620, locking groove;710, positioning groove;720, positioning rod;810, shunt plate;820, casting liquid pipeline;830, heating cavity;840, casting liquid inlet;850, fixed bearing block;860, thimble plate;

[0038] The utility model discloses the realization, functional characteristics and advantages will combine embodiment, and reference drawing further explain. DETAILED DESCRIPTION

[0039] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0040] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the utility model are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications will also change accordingly.

[0041] In the utility model, unless otherwise explicitly specified and limited, the terms "connection", "fixing" and the like should be understood broadly, for example, "fixing" can be fixed connection, can also be detachable connection, or integral;Can be mechanical connection, can also be electrical connection;Can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0042] In addition, if the description of "first", "second" and the like is involved in the embodiments of the utility model, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. For example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0043] Referring to Figures 1-7 The utility model proposes a kind of cast aluminium rotor production device, for the casting of cast aluminium rotor, comprising:

[0044] Fixed mould unit 100, it includes the first fixed mould plate 110, second fixed mould plate 120 that successively superimposes;

[0045] Moving mould unit 200, it includes the first moving mould plate 210, second moving mould plate 220, third moving mould plate 230 that successively superimposes, first fixed mould plate 110 and first moving mould plate 210 are formed pouring cavity by locking;

[0046] Heating unit, including multiple heating pipelines, multiple heating pipelines are arranged in fixed mould unit 100 and moving mould unit 200 respectively;

[0047] Heat preservation unit, including multiple heat preservation pipelines, multiple heat preservation pipelines are arranged in first fixed mould plate 110 and third moving mould plate 230 respectively.

[0048] The mode adopted in the scheme for the aluminum strip casting of the core is mold casting, and the temperature of the aluminum liquid in the holding furnace before pouring is usually about 700 DEG C, and the solidification temperature of the aluminum liquid is about 660 DEG C, with a small difference between the two. Therefore, the solidification speed of the aluminum liquid after pouring is relatively fast. To prevent the aluminum liquid from starting to solidify before completely filling the pouring cavity, heating pipelines are arranged in each die plate in fixed mould unit 100 and moving mould unit 200. Before pouring, fixed mould unit 100 and moving mould unit 200 are preheated to slow down the solidification speed of the aluminum liquid in the pouring cavity and improve the pouring quality. In addition, to further improve the pouring quality, the aluminum liquid is high-pressure aluminum liquid, which can flow quickly to all parts of the pouring cavity under the promotion of pressure, thereby improving the pouring quality. In addition, to prevent the overall temperature of the production device from being too high due to pouring, multiple heat preservation pipelines are also provided, which are long-term opened to control the overall temperature of the production device.

[0049] Specifically, the medium flowing in the heating pipeline is oil, and the medium flowing in the heat preservation pipeline is water.

[0050] Further, the production device is also provided with a vacuum pipeline 510, which is connected with the casting cavity and the external environment. Before the molten aluminum enters the casting cavity, the casting cavity is subjected to negative pressure treatment to reduce the gas content in the casting cavity. The casting is performed under negative pressure, which can reduce the gas entrained by the molten aluminum during the filling process, improve the density of the castings, and also reduce the oxidation slag produced by the oxidation of oxygen in the mold and the molten aluminum.

[0051] Specifically, the vacuum pipeline 510 is arranged on the anti-explosion plate 500. Since the casting process is high-pressure casting, and more molten aluminum than the required amount is pressed into the casting cavity during the casting process (for example, 50 kg of molten aluminum is required for casting, and more than 50 kg of molten aluminum is pressed into the casting cavity), the remaining molten aluminum needs to be treated, and the high-temperature molten aluminum needs to be prevented from overflowing and exploding due to high pressure at the gap between the fixed mold unit 100 and the movable mold unit 200. To solve the above problems, the anti-explosion plate 500 is provided with continuous corrugated protrusions. When the molten aluminum overflows to the anti-explosion plate 500 and contacts the corrugated protrusions, the flow rate is greatly reduced, so that it is difficult for the molten aluminum to flow to the outside of the mold through the corrugated protrusions.

[0052] During the casting process, the sliding clamping block 600 clamps the iron core to ensure that the iron core is located at the correct position in the casting cavity. Whether the sliding clamping block 600 clamps the iron core stably also affects the final casting quality of the castings.

[0053] Therefore, the locking block 610 is provided, which is a component of the sliding clamping block 600. Therefore, the locking block 610 also has a clamping position and a discharging position. To prevent the sliding clamping block 600 from moving during the casting process and causing the clamping to be loose, the locking groove 620 is arranged on the first fixed mold plate 110, and the position of the locking groove 620 corresponds to the position of the locking block 610 when the locking block 610 is located at the clamping position. That is, when the locking block 610 extends into the locking groove 620, the locking groove 620 locks the locking block 610, and the sliding clamping block 600 cannot move, thereby ensuring that the first fixed mold plate 110 and the first movable mold plate 210 stably clamp the iron core when they are buckled.

[0054] In addition to the clamping stability, the accuracy of the clamping between the fixed mold unit 100 and the movable mold unit 200 also affects the final casting quality. In order to ensure the accuracy of the clamping, positioning grooves 710 and positioning rods 720 are arranged on the fixed mold unit 100 and the movable mold unit 200 respectively. Specifically, the positioning grooves 710 are arranged at the four corners of the fixed mold unit 100, and the positioning rods 720 are arranged at the four corners of the movable mold unit 200. During the clamping process, the positioning rods 720 gradually extend into the positioning grooves 710, and when the positioning rods 720 extend into the positioning grooves 710, they correct the small deviation of the clamping trajectory, ensuring that the final clamping is accurate.

[0055] The production device realizes the functions of preheating and heat preservation mainly by relying on the heating pipeline and the heat preservation pipeline. The first fixed mold plate 110 is provided with a flow distribution plate 810 and a casting liquid pipeline 820. During casting, the aluminum liquid flows into the flow distribution plate 810 through the casting liquid pipeline 820, and then flows into each position in the casting cavity. Since the overall temperature of the first fixed mold plate 110 greatly affects the temperature of the casting cavity, the third heating pipeline 320 is arranged in a cross structure to form a heating surface in the first fixed mold plate 110, thereby realizing overall heating of the first fixed mold plate 110. In addition, the fifth heating pipeline 330 is arranged close to the casting liquid pipeline 820, and mainly realizes heating of the casting liquid pipeline 820. The flow distribution plate 810 is the first component that contacts the aluminum liquid after the aluminum liquid flows out of the casting liquid pipeline 820, and its contact time with the aluminum liquid is extremely long during the entire casting process. In order to prevent deformation or damage of the flow distribution plate 810 caused by high temperature, the fourth heat preservation pipeline 410 is arranged to control the temperature of the flow distribution plate 810.

[0056] The second fixed mold plate 120 is provided with three heating pipelines, one of which is the first heating pipeline 300 arranged in a surrounding configuration to form surface heating of the second fixed mold plate 120. In addition, the first fixed mold plate 110 and the second fixed mold plate 120 are further formed with a heating cavity 830 by being overlapped. The second heating pipeline 310 communicates with the heating cavity 830, and the entire fixed mold unit 100 is preheated through the heating cavity 830. The casting liquid pipeline 820 is provided with a casting liquid inlet 840 at the second fixed mold plate 120, so that the twelfth heating pipeline 370 is arranged at the casting liquid inlet 840 to ensure that the temperature of the casting liquid entering the casting liquid pipeline 820 does not decrease significantly.

[0057] The first movable mold plate 210 includes a clamping unit, which includes a sliding clamping block 600 and a fixed support block 850. The fixed support block 850 is used to support the iron core, and the fixed support block 850 cooperates with the sliding clamping block 600 to fix the iron core at a specific position in the casting cavity. The first movable mold plate 210 is provided with an eighth heating pipeline 360, which communicates with the fixed support block 850 to preheat the fixed support block 850.

[0058] The second movable mold plate 220 is provided with a ejector plate 860, and the ejector plate 860 is provided with an ejector hole in the circumferential direction, so that the ejector passes through the castings to be discharged. Compared with low temperature, the high temperature environment is more conducive to the demolding of the castings, so that the seventh heating pipe 350 is arranged to heat the ejector plate 860, which is convenient for subsequent demolding. In addition, the second movable mold plate 220 is also provided with the sixth heating pipe 340, which is in a surrounding configuration, so as to heat the second movable mold plate 220 as a whole.

[0059] The eleventh heat preservation pipe 420 is arranged in the third movable mold plate 230, and the temperature of the movable mold unit 200 is adjusted, so that the mold is not overheated to affect the use.

[0060] The above is only an optional embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation made by the utility model specification and the drawings, or direct / indirect application in other related technical fields under the inventive concept of the utility model is included in the patent protection range of the utility model.

Claims

1. An apparatus for producing a cast aluminum rotor for casting of a cast aluminum rotor, characterized by, The application relates to a die-casting machine. The die-casting machine comprises a fixed die unit, a movable die unit, a heating unit and a heat preservation unit. The fixed die unit comprises a first fixed die plate and a second fixed die plate. The movable die unit comprises a first movable die plate, a second movable die plate and a third movable die plate. The heating unit comprises a plurality of heating pipelines.

2. The cast aluminum rotor production apparatus of claim 1, wherein The heat preservation unit comprises a plurality of heat preservation pipelines.

3. The cast aluminum rotor production apparatus of claim 2, wherein The first fixed die plate and the first movable die plate each comprise an anti-explosion plate.

4. The cast aluminum rotor production apparatus of claim 1, wherein The anti-explosion plate is provided with a vacuum pipeline.

5. The cast aluminum rotor production apparatus of claim 1 wherein, The first movable die plate comprises at least two sliding clamping blocks.

6. The cast aluminum rotor production apparatus of claim 1 wherein, The fixed die unit and the movable die unit are provided with a positioning slot and a positioning rod. The first fixed die plate comprises a shunt plate and a casting liquid pipeline. The first fixed die plate is provided with a No. 4 heat preservation pipeline, a No. 3 heating pipeline, a No. 5 heating pipeline, a No. 1 heating pipeline, a No. 2 heating pipeline and a No. 12 heating pipeline. The first movable die plate is provided with a No. 8 heating pipeline.

7. The cast aluminum rotor production apparatus of claim 1 wherein, The second movable die plate is provided with a No. 6 heating pipeline and a No. 7 heating pipeline. The third movable die plate is provided with a No. 11 heat preservation pipeline. ​ ​ 8. The cast aluminum rotor production apparatus of claim 1 wherein, ​ 9. The cast aluminum rotor production apparatus of claim 1 wherein, ​ ​ ​ 10. The cast aluminum rotor production apparatus of claim 1 wherein, ​

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