A resin sand casting mold for a robot support arm

Abstract

This application relates to the field of casting production technology, specifically disclosing a resin sand casting mold for a robot support arm, including a casting model, a sand core assembly, and a gating system. The sand core assembly is configured to cooperate with the casting model to form a cavity for casting the robot support arm. The gating system includes a sprue, a runner, and several ingates. The runner is connected below the sprue, and both ends of the runner are provided with heating risers. The several ingates connect the runner and the two heating risers to the casting model. The robot support arm produced by the resin sand casting mold for the robot support arm provided in this application has no shrinkage cavities, cold shuts, or porosity, ensuring product quality, improving product yield, and solving the problem of high enterprise costs due to a large number of product scraps.

Description

Technical Field

[0001] This utility model relates to the field of casting production technology, and in particular to a resin sand casting mold for a robot support arm. Background Technology

[0002] As the core load-bearing component of a robot, the robot support arm faces multiple technical challenges in its casting process, including material properties, structural design, and process control. Furthermore, the arm often contains cross ribs, threaded holes, and thin-thickness transition zones. Using existing casting molds, shrinkage cavities or cracks are easily generated at corners during casting shrinkage. Thick-walled areas cool slowly, resulting in a greater tendency for shrinkage cavities, while thin-walled areas are difficult to fill and prone to cold shuts.

[0003] To address the aforementioned issues, this application discloses a resin sand casting mold for a robot support arm. Utility Model Content

[0004] To overcome the shortcomings of the existing technology, this utility model discloses a resin sand casting mold for a robot support arm.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a resin sand casting mold for a robot support arm, comprising a casting model, a sand core assembly, and a gating system;

[0006] The sand core assembly is configured to cooperate with the casting model and form a cavity for casting the robot support arm;

[0007] The gating system includes a sprue, a runner, and several ingates. The runner is connected below the sprue, and each end of the runner is provided with a heat-generating riser. The several ingates connect the runner and the two heat-generating risers to the casting mold.

[0008] More preferably, the sand core assembly includes a first sand core disposed inside the casting model and partially extending outward, a second sand core disposed on the outside of the casting model, and a third and fourth sand core disposed in the machining and assembly areas at both ends of the casting model.

[0009] More preferably, several chills are attached to the outer periphery of the third and fourth sand cores.

[0010] Further preferably, several air-drawing ropes are drawn out from the inside of the first sand core.

[0011] More preferably, the straight runner is connected to the middle position of the horizontal runner.

[0012] This utility model achieves the following beneficial effects:

[0013] The robot support arm produced by the resin sand casting mold provided in this application has no shrinkage cavities, cold shuts, or air holes inside, which ensures the production quality of the product, improves the product yield, and solves the problem of high enterprise costs caused by a large number of scrapped products.

[0014] Other features and advantages of this invention will be set forth in the following description and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures pointed out in the description and the accompanying drawings. Attached Figure Description

[0015] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the specification, serve to explain the principles of the disclosure.

[0016] Figure 1 This is a schematic diagram of the overall structure disclosed in this utility model;

[0017] Figure 2 This is a schematic diagram of the exploded structure disclosed in this utility model;

[0018] Figure 3 This is a schematic diagram of the structure from below, as disclosed in this utility model;

[0019] In the diagram: 10. Casting model; 11. First outer mold; 12. Second outer mold; 20. Sand core assembly; 21. First sand core; 22. Second sand core; 23. Third sand core; 24. Fourth sand core; 30. Gating system; 31. Straight sprue; 32. Horizontal sprue; 33. Heating riser; 34. Ingate; 40. Air venting rope; 50. Chill. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] Example

[0023] To address the problems of shrinkage cavities or cracks at corners during casting shrinkage, slow cooling in thick-walled areas leading to shrinkage cavities, and difficulty in filling thin-walled areas resulting in cold shuts, this paper refers to... Figure 1 and Figure 2 As shown, this application discloses a resin sand casting mold for a robot support arm, including a casting model 10, a sand core assembly 20, and a gating system 30;

[0024] The sand core assembly 20 is configured to cooperate with the casting model 10 and form a cavity (not shown in this application) for casting the robot support arm. The casting model 10 specifically includes a first outer mold 11 and a second outer mold 12. In actual use, the sand core assembly 20 needs to close the first outer mold 11 and the second outer mold 12. The sand core assembly 20 includes a first sand core 21 located inside the casting model 10 and partially extending outward, a second sand core 22 located on the outside of the casting model 10, and a third sand core 23 and a fourth sand core 24 located in the processing and assembly areas at both ends of the casting model 10. Since the first sand core 21 is relatively long, several air ducts 40 are led out from inside the first sand core 21 to increase venting. Several chills 50 are attached to the outer periphery of the third sand core 23 and the fourth sand core 24 to ensure that the quality of the casting meets the requirements after processing.

[0025] The gating system 30 includes a sprue 31, a runner 32, and several ingates 34. The runner 32 is connected below the sprue 31, and the sprue 31 is connected to the middle of the runner 32. Heating risers 33 are provided at both ends of the runner 32. The several ingates 34 connect the runner 32 and the two heating risers 33 to the casting mold 10. In practice, the casting material is ductile iron, and the gating system 30 adopts an open gating system with molten iron entering from the center. The open gating system ensures stable filling during the pouring process and reduces the occurrence of air entrapment and oxide slag. Since the casting is nearly 2 meters long and has a relatively thin wall thickness in the middle, the central ingate 34 ensures the temperature of the molten iron during the pouring process to prevent cold shut defects. Heating risers 33 are added at both ends of the gating system 30 to enhance the feeding effect on the transition zone of the casting.

[0026] In summary, the robot support arm produced by the resin sand casting mold provided in this application has no shrinkage cavities, cold shuts, or air holes inside, which ensures the production quality of the product, improves the product yield, and solves the problem of high enterprise costs caused by a large number of scrapped products.

[0027] In the description of this specification, the references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0028] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A resin sand casting mold for a robot support arm, characterized in that, Includes casting model (10), sand core assembly (20) and gating system (30); The sand core assembly (20) is configured to cooperate with the casting model (10) and form a cavity for casting the robot support arm; The gating system (30) includes a sprue (31), a runner (32), and several ingates (34). The runner (32) is connected below the sprue (31). The two ends of the runner (32) are respectively provided with heating risers (33). The several ingates (34) connect the runner (32) and the two heating risers (33) to the casting model (10).

2. The resin sand casting mold for a robot support arm according to claim 1, characterized in that, The sand core assembly (20) includes a first sand core (21) located inside the casting model (10) and extending outward in part, a second sand core (22) located on the outside of the casting model (10), a third sand core (23) located in the processing and assembly areas at both ends of the casting model (10), and a fourth sand core (24).

3. The resin sand casting mold for a robot support arm according to claim 2, characterized in that, Several chills (50) are attached to the outer periphery of the third sand core (23) and the fourth sand core (24).

4. The resin sand casting mold for a robot support arm according to claim 2, characterized in that, Several air-drawing ropes (40) are drawn out from the inside of the first sand core (21).

5. The resin sand casting mold for a robot support arm according to claim 1, characterized in that, The straight runner (31) is connected to the middle position of the horizontal runner (32).

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