Robot casting chilling block

Abstract

The utility model discloses a robot casting chill which is a random chill, the chill has inclination and is small in the front and large in the rear, a chill outer mold is arranged outside the chill and comprises an upper chill outer mold and a lower chill outer mold, the gap between the upper chill outer mold and the chill is 0.5 mm, the gap between the lower chill outer mold and the chill is 0.25 mm, and the chill outer mold and the upper chill outer mold are mutually matched. The shape of the contact surface of the chilling block and the casting chess piece is the same, the end, far away from the contact surface, of the chilling block outer mold is provided with an anti-pressing groove with the width of 3 mm and the height of 3 mm, and 3-degree drawing inclination is designed according to the shape. According to the chill structure, the production efficiency is improved, and the cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of robot casting chillers, in particular to a robot casting chiller. Background Art

[0002] During the solidification and cooling process of castings, hot spots are easily generated due to the limitation of the casting structure. Liquid phase islands will appear at the hot spots and solidify last. Shrinkage, shrinkage holes and other defects are prone to occur at the last solidification position, which affects the quality of the casting. The robot J3ARM A290-7335-X401 castings were originally produced in the furan workshop. In order to save costs and improve production efficiency, they were transferred to the static pressure line production. The original furan process solution placed the chiller in half of the upper and lower molds, and manually filled the sand to compact it and demold it according to the mold. The production efficiency was low, which increased the cost, and the chiller position could not be unified. At the same time, the static pressure production line was produced by automated equipment, which was difficult for operators to implement (see Figure 1 ), so the cold iron solution needs to be improved. Summary of the Invention

[0003] The purpose of the utility model is to overcome the defects of the above-mentioned prior art in which the upper and lower mold half-chills of the chill stomach are placed and manual demoulding leads to low production efficiency and high cost, and to provide a robot casting chiller, thereby improving production efficiency and saving costs.

[0004] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a robot casting chiller, the chiller is a conforming chiller, the chiller has an inclination, and is small in front and large in the back, the outer chiller is a chiller outer mold with the same shape as the chiller, the chiller outer mold includes an upper chiller outer mold and a lower chiller outer mold, the gap between the upper chiller outer mold and the chiller is 0.5mm, the gap between the lower chiller outer mold and the chiller is 0.25mm, the contact surface shape of the chiller and the casting chess piece is the same, the chiller outer mold is designed with a 3mm wide and 3mm high anti-pressure groove away from the contact surface end, and a 3° mold draft angle is designed conforming to the shape.

[0005] Preferably, the chill can be a free-form frustum-shaped chill, which is built into the sand core. The inner cavity of the frustum-shaped chill is hollowed out and matched with the cylindrical core bone. The limit is assembled at the fixed position of the core bone to ensure that the chill corresponds to the defect position of the casting.

[0006] Preferably, the cold iron outer mold is positioned and fastened using hexagon socket screws.

[0007] Compared with the prior art, the beneficial effects of the present invention are as follows: a chill outer mold is installed on the outer mold. The outer mold has the same shape as the chill, and the surface of the chill is rough. A certain gap must be left between the outer mold and the chill outer mold to facilitate the subsequent placement of the chill. The chill has a certain inclination to facilitate smooth demoulding during the casting process. The chill outer mold is divided into an upper chill outer mold and a lower chill outer mold. The gap between the upper chill outer mold and the chill is 0.5mm, and the gap between the lower chill outer mold and the chill is 0.25mm. This ensures that the chill does not rub against the upper mold when closing the mold, and ensures that the chill is accurately positioned. The chill outer mold is positioned and fastened with hexagonal screws, so that the chill is accurately positioned and has high strength, which is convenient for mass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a chess piece position diagram for the casting of this utility model.

[0009] Figure 2 This is the shape diagram of the cold iron of this utility model.

[0010] Figure 3 for Figure 2 Left view of .

[0011] Figure 4 This is the shape diagram of the outer mold of the cold iron of this utility model.

[0012] Figure 5 for Figure 4 Left view of .

[0013] Figure 6 This is a diagram of the defect locations of castings of this utility model.

[0014] Figure 7 for Figure 6 AA direction view.

[0015] Figure 8 This is a cross-sectional view of a sand core using a frustum-type chiller.

[0016] Figure 9 This is the main view of the frustum chiller.

[0017] Figure 10 for Figure 9 BB direction view.

[0018] Markings in the figure: 1-chill iron, 2-core bone, 3-sand core, 4-limit, 5-casting defect position, 6-anti-pressure groove, 7-contact surface, 8-casting chess piece. DETAILED DESCRIPTION

[0019] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0020] The utility model aims at the defects in the prior art, and the improvement scheme of the cold iron 1 is as follows: the cold iron 1 is changed into a free-form cold iron, which has the same shape as the contact surface of the cast iron chess piece 8, and the thickness of the cold iron 1 is the same as that of the furan cold iron. Considering the large-scale production, the demand for the cold iron 1 is large, and it is more convenient to make it by casting, which is convenient for smooth demoulding during the casting process. The cold iron 1 has a certain slope, showing a small front and a large back. Figure 2 Chill shape. Static pressure production cannot be demoulded according to the mold, so a chill outer mold must be installed on the outer mold. The shape of the outer mold is the same as that of chill 1. The surface of chill 1 is rough, and a certain gap must be left between it and the chill outer mold to facilitate the subsequent placement of chill 1. The chill outer mold is divided into an upper chill outer mold and a lower chill outer mold. The gap between the upper chill outer mold and chill 1 is 0.5mm, and the gap between the lower chill outer mold and chill 1 is 0.25mm. This ensures that chill 1 does not rub against the upper mold during mold closing, and ensures that chill 1 is accurately positioned. The chill outer mold is positioned and fastened with hexagon socket screws, so that chill 1 is accurately positioned and has high strength, which is convenient for mass production.

[0021] Considering that the chill 1 will have burrs on the parting surface and runner residues during the casting process, if they are not cleaned, the chill will damage the sand mold. If they are cleaned, the production cost will increase. After repeated design and testing, a 3mm wide and 3mm high anti-pressure groove 6 is designed at the end of the chill outer mold away from the contact surface 7, and a 3° mold draft angle is designed according to the mold, so that the chill 1 can be placed smoothly. Shrinkage holes and shrinkage defects are prone to occur at the steps of the inner cavity of the small head of the casting ( Figure 6 and Figure 7 Casting curve position), considering the location of defects, after repeated tests, the defects were counteracted by adding internal cooling iron. Figure 8 The function is to chill the thicker part of the casting ring so that it solidifies first.

[0022] The chill 1 is designed as a truncated cone-shaped chill. Since it is located in the inner cavity, it needs to be built into the sand core 3. It cannot be fixed and positioned during the core making process. The inner cavity of the truncated cone chill is hollowed out and matched with the cylindrical core 2. The chill limiter 4 is assembled at the fixed position of the core 2 to ensure that the chill corresponds to the defect position 5 of the casting. Different chills are designed according to the different shapes of the defect position of the product. Figure 4 It's a different location.

[0023] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A robot casting chill, characterized by: The cold iron (1) is a conforming cold iron. The cold iron (1) has an inclination, and is smaller in the front and larger in the back. The cold iron (1) is externally provided with a cold iron outer mold having the same shape as the cold iron. The cold iron outer mold comprises an upper cold iron outer mold and a lower cold iron outer mold. The gap between the upper cold iron outer mold and the cold iron (1) is 0.5 mm, and the gap between the lower cold iron outer mold and the cold iron (1) is 0.25 mm. The contact surface (7) between the cold iron (1) and the casting chess piece (8) is of the same shape. The cold iron outer mold is designed with a 3 mm wide and 3 mm high anti-pressure groove (6) at the end away from the contact surface (7), and a 3° mold draft angle is designed conforming to the shape.

2. The robot casting chill according to claim 1, characterized in that: The chill (1) can be a free-form frustum-shaped chill, which is built into the sand core (3). The inner cavity of the frustum-shaped chill is hollowed out and matched with the cylindrical core bone (2). A limiter (4) is assembled at a fixed position of the core bone (2) to ensure that the chill corresponds to the defect position (5) of the casting.

3. The robot casting chill according to claim 1, characterized in that: The cold iron outer mold is positioned and fastened by hexagon socket screws.

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