Split type mold for vacuum centrifugal casting

Abstract

The utility model discloses a split type mold for vacuum centrifugal casting, which comprises a lower mold body and is characterized in that the lower mold body comprises an outer mold part and an inner mold part which are arranged in a split type, and the outer mold part is movably mounted on the inner mold part; the inner die piece comprises a lower die base and an inner die installed on the lower die base. According to the utility model, the lower mold body is arranged in a split manner and is divided into the outer mold piece and the inner mold piece, so that when a rotor iron core and the inner mold body are demolded, multi-time demolding and single-time and single-side demolding can be carried out, the thrust during demolding is reduced, and the demolding efficiency is improved. And meanwhile, galling on the surface of the rotor iron core due to the fact that inner and outer demolding is completed at a time by strong force is avoided.

Description

Technical Field

[0001] This utility model relates to a vacuum centrifugal casting device, specifically a split mold for vacuum centrifugal casting. Background Technology

[0002] In existing vacuum centrifugal casting devices for casting rotor cores, a vacuum is drawn from the rotor core during casting. This vacuuming process removes pores from the molten aluminum, increasing the casting density and resulting in a tighter fit between the molten aluminum and the lower mold cavity wall. Furthermore, since the lower mold in existing technologies is an integral mold, the cavity of the lower mold fits tightly to both the inner and outer sides of the casting area of ​​the rotor core. Therefore, when using the demolding device in the existing casting device to demold the rotor core, insufficient thrust often makes it difficult to demold the rotor core from the lower mold.

[0003] To enable proper demolding, the driving component in the demolding device must be replaced to increase the pushing force and detach the rotor core from the lower mold. However, this method of forcefully detaching the rotor core from the lower mold in one go leads to problems such as roughening of the outer wall of the core due to the forceful pushing, making demolding difficult and affecting the casting quality of the core under forced demolding conditions. Therefore, a split mold for vacuum centrifugal casting is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a split mold for vacuum centrifugal casting in order to solve the above problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a split mold for vacuum centrifugal casting, comprising a lower mold body, characterized in that the lower mold body comprises an outer mold component and an inner mold component arranged separately, the outer mold component being movably mounted on the inner mold component; the inner mold component comprises a lower mold base and an inner mold mounted on the lower mold base.

[0006] More preferably, the outer mold component includes an outer mold base movably mounted on the inner mold and the lower mold base, an outer mold pad mounted on the outer mold base, an outer mold seat mounted on the outer mold pad, and an outer mold mounted between the outer mold seat and the outer mold pad.

[0007] More preferably, the outer mold is composed of several outer modules stacked together.

[0008] A further preferred embodiment includes positioning holes provided on the outer module and the outer mold pad to limit the position of several outer modules, and positioning shafts movably installed in the positioning holes.

[0009] The utility model discloses a beneficial effect: through with lower mould body component body type setting, divide into outer mould piece and inner mould piece, when demoulding to rotor iron core and inner mould body, can carry out fraction demoulding, single single side demoulding, reduce the thrust when demoulding, facilitate demoulding and still can not cause the rotor iron core surface to pull the hair because of strong power one time and complete inside and outside two sides demoulding leads to.

[0010] Meanwhile through adopting a plurality of outer mould pad superposition and constitute separate outer mould, if wearing after using, then can only replace the outer mould, and need not replace the whole lower mould body, save the cost. DRAWINGS

[0011] Fig. 1 It is the structure schematic diagram of the utility model;

[0012] Fig. 2 It is the structure schematic diagram of the utility model when using;

[0013] Fig. 3 It is the local structure schematic diagram of the utility model.

[0014] Legend: 1, lower mould body;2, outer mould piece;22, outer mould pad;23, outer mould seat;24, outer mould;25, outer mould block;26, outer mould base;3, inner mould piece;31, lower mould base;32, inner mould;4, positioning hole;41, positioning shaft. DETAILED DESCRIPTION

[0015] Below, we combine the drawing to the utility model described a kind of vacuum centrifugal casting split mould do further's explanation.

[0016] It needs to be explained that, all directionality indications such as upper, lower, left, right, front, back in the utility model embodiment are only used to explain the relative position relationship, movement condition etc. between components in a certain specific posture, such as shown in the drawing, if the specific posture changes, then the directionality indication also changes accordingly.

[0017] In the utility model, unless another explicit provision and limitation, the terms "connection", "fixing" etc. should be broadly understood;For example, "fixing" can be fixed connection, can also be detachable connection, or integrated;Can be mechanical connection, can also be electrical connection;Can be directly connected, can also be indirectly connected through intermediate medium, can be the intercommunication of two elements or the interaction relationship of two elements, unless another explicit limitation. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0018] Reference Figs. 1-3As shown in the figure, a split mold for vacuum centrifugal casting comprises a lower mold body 1, characterized in that the lower mold body 1 comprises an outer mold piece 2 and an inner mold piece 3 arranged in a split mode, the outer mold piece 2 is movably installed on the inner mold piece 3; the inner mold piece 3 comprises a lower mold base 31 and an inner mold 32 installed on the lower mold base 31;

[0019] The outer mold piece 2 comprises an outer mold base 26 movably installed on the inner mold 32 and the lower mold base 31, an outer mold pad 22 installed on the outer mold base 26, an outer mold seat 23 installed on the outer mold pad 22, and an outer mold 24 installed between the outer mold seat 23 and the outer mold pad 22;

[0020] By arranging the lower mold body 1 in a split mode into the outer mold piece 2 and the inner mold piece 3, the mold can be demolded in several times, and the demolding force can be reduced, so that the rotor core surface is not damaged.

[0021] In one embodiment, the outer mold 24 is composed of a plurality of outer mold blocks 25 arranged in a stack mode;

[0022] In one embodiment, the outer mold 24 is composed of a plurality of outer mold blocks 25 arranged in a stack mode;

[0023] In one embodiment, the outer mold 24 is composed of a plurality of outer mold blocks 25 arranged in a stack mode;

[0024] In one embodiment, the outer mold 24 is composed of a plurality of outer mold blocks 25 arranged in a stack mode;

[0025] The protection scope of the utility model is not limited to the above embodiments and their transformations. The routine modifications and replacements made by the skilled in the art based on the content of the embodiments all belong to the protection scope of the utility model.

Claims

1. A split mold for vacuum centrifugal casting comprising a lower mold body (1), characterized in that The lower mold body (1) comprises an outer mold piece (2) and an inner mold piece (3) arranged in a split mode, the outer mold piece (2) is movably installed on the inner mold piece (3), and the inner mold piece (3) comprises a lower mold base (31) and an inner mold (32) installed on the lower mold base (31).

2. The split mold for vacuum centrifugal casting according to claim 1, characterized in that: The outer mold piece (2) comprises an outer mold base (26) movably installed on the inner mold (32) and the lower mold base (31), an outer mold pad (22) installed on the outer mold base (26), an outer mold seat (23) installed on the outer mold pad (22), and an outer mold (24) installed between the outer mold seat (23) and the outer mold pad (22).

3. The split mold for vacuum spin casting of claim 2, wherein: The outer mold (24) is composed of a plurality of outer mold pieces (25) arranged in a stack mode.

4. The split mold for vacuum spin casting of claim 3, wherein: Further comprising positioning holes (4) arranged on the outer mold pieces (25) and the outer mold pad (22) and serving to limit the positions of the plurality of outer mold pieces (25), and positioning shafts (41) movably installed in the positioning holes (4).

Images