Novel metal mold auxiliary forming tool

Abstract

The utility model discloses a novel auxiliary forming tool for a metal mold, and relates to the technical field of auxiliary forming tools for molds. The top of the movable forming mechanism protrudes upwards to form a supporting protrusion, a special-shaped positioning pin is fixedly connected into the fixing groove, a positioning shaft is rotationally connected into the second fixing groove, the special-shaped positioning pin is sleeved with a special-shaped pin sleeve, and a casting cavity is formed between the top of the movable forming mechanism and the metal mold. When the special-shaped positioning pin and the special-shaped pin sleeve are combined, the special-shaped positioning pin and the special-shaped pin sleeve are mutually clamped to form a slope shape, so that a casting can be supported during mold closing, and corners and curved surface cavities which are generated inside the casting and cannot be machined can be fully filled during horizontal parting of the casting; and when the special-shaped positioning pin is combined with the special-shaped pin sleeve, the special-shaped positioning pin and the special-shaped pin sleeve are clamped to form a slope shape. The movable forming mechanism can be upwards supported at the bottom of a casting, the situation that a mold cannot be manufactured in the mold manufacturing process is avoided, and the problem that the mold cannot be machined due to the shape of a product is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of die-assisted molding tooling, in particular to a novel metal die-assisted molding tooling. Background Art

[0002] Gravity casting refers to the process of injecting molten metal into a mold under the action of the earth's gravity, also known as gravity casting. In a broad sense, gravity casting includes sand casting, metal mold casting, investment casting, lost foam casting, mud mold casting, etc. In a narrow sense, gravity casting mainly refers to metal mold casting. When using metal mold gravity casting, beryllium copper is required to make the mold. The beryllium copper mold needs to be made by CNC processing. Because the commonly used machining center is a 3 / 4-axis machining center, some machining actions cannot be performed. When the product is horizontally parted, corners and curved cavities that cannot be processed will be generated, resulting in the inability to make the product mold. Even if it is made by other methods, it is difficult to solve the problem of demolding. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a novel metal mold auxiliary forming tooling, which solves the problem that the commonly used machining centers are 3 / 4-axis machining centers and cannot perform some machining actions. When the product is horizontally parted, corners and curved surface cavities that cannot be processed will be generated, resulting in the inability to make the product mold. Even if it is made using a 5-axis machining center, it is difficult to solve the demoulding problem.

[0004] To achieve the above purpose, the utility model is implemented through the following technical solutions: a new type of metal mold auxiliary molding tool. It includes a phenolic resin sand core, the bottom of the phenolic resin sand core is provided with an auxiliary component, the auxiliary component includes a movable molding mechanism, the top of the movable molding mechanism is upwardly protruded with a supporting protrusion, one end of the movable molding mechanism is provided with a fixing groove, the other end of the movable molding mechanism is provided with a second fixing groove, the interior of the fixing groove is fixedly connected with a special-shaped positioning pin, the interior of the second fixing groove is rotatably connected with a positioning shaft, and the exterior of the special-shaped positioning pin is sleeved with a special-shaped pin sleeve.

[0005] Preferably, a metal mold is sleeved on the outside of the phenolic resin sand core.

[0006] Preferably, the movable forming mechanism is rotatably connected to one end of the inner cavity of the metal mold via a positioning shaft.

[0007] Preferably, the special-shaped pin sleeve is fixedly connected to one end of the inner cavity of the metal mold.

[0008] Preferably, a casting cavity is formed between the top of the supporting protrusion and the metal mold.

[0009] Preferably, a special-shaped slot is provided inside the special-shaped pin sleeve, and a slope shape for mutual engagement is provided between the special-shaped slot and the special-shaped positioning pin.

[0010] The utility model provides a new type of metal mold auxiliary forming tooling. Compared with the prior art, it has the following beneficial effects:

[0011] 1. A new type of metal mold auxiliary molding tooling forms a casting chamber between the top of the movable molding mechanism and the metal mold to ensure that the casting can be supported when the mold is closed, so that when the casting is horizontally parted, the corners and curved surface cavities that cannot be processed inside can be filled. When the special-shaped locating pin is combined with the special-shaped pin sleeve, the slope shape of the special-shaped locating pin and the special-shaped pin sleeve that are mutually engaged can support the movable molding mechanism upward at the bottom of the casting, so that the mold will not be unable to be made during the mold manufacturing process, and the problem of being unable to be processed due to the shape of the product can be avoided.

[0012] 2. A new type of metal mold auxiliary forming tooling connects the movable forming mechanism to the inner cavity of the metal mold through a positioning shaft, so that the movable forming mechanism can be fixed inside the metal mold when the special-shaped positioning pin is engaged with the special-shaped pin sleeve. At the same time, after the pouring is completed, the metal mold is opened. Since the special-shaped positioning pin is separated from the inside of the special-shaped pin sleeve, the movable forming mechanism swings downward under the fixing action of the positioning shaft until it is stuck in the metal mold, which is convenient for taking out the casting supported by the top. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the auxiliary component structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the cross-sectional structure of the auxiliary component of the utility model;

[0016] Figure 4 This is a schematic diagram of the top structure of the auxiliary component of the utility model;

[0017] Figure 5 It is a schematic diagram of the partial structure of the auxiliary component of the utility model;

[0018] Figure 6 This is a detailed diagram of the auxiliary components of the utility model.

[0019] In the figure: 1, phenolic resin sand core; 2, auxiliary components; 21, movable molding mechanism; 22, special-shaped positioning pin; 220, special-shaped pin sleeve; 221, special-shaped slot; 23, positioning shaft; 24, supporting protrusion; 25, fixing slot; 26, second fixing slot. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-6 The utility model provides a technical solution: a new type of metal mold auxiliary molding tool. It includes a phenolic resin sand core 1, and an auxiliary component 2 is arranged at the bottom of the phenolic resin sand core 1. The auxiliary component 2 includes a movable molding mechanism 21. The top of the movable molding mechanism 21 is upwardly protruded with a support protrusion 24. Due to the shape of the product itself, the casting cannot be taken out after casting. The support protrusion 24 can support the casting and form a casting chamber with the casting, so that the poured copper water can enter the interior for shaping. A fixing groove 25 is provided at one end of the movable molding mechanism 21, and a second fixing groove 26 is provided at the other end of the movable molding mechanism 21. A special-shaped positioning pin 22 is fixedly connected to the interior of the fixing groove 25. The second fixing groove 26 is provided at the other end of the movable molding mechanism 21. The fixed groove 26 is internally rotatably connected with a positioning shaft 23, and the positioning shaft 23 can fix the movable forming mechanism 21 inside the metal mold. The movable forming mechanism 21 can rotate inside the metal mold with the positioning shaft 23 as the axis. The outside of the special-shaped locating pin 22 is sleeved with a special-shaped pin sleeve 220. The insides of the special-shaped locating pin 22 and the special-shaped pin sleeve 220 are both provided with slopes that can be embedded with each other. When the mold is closed, the special-shaped locating pin 22 will be embedded into the inside of the special-shaped pin sleeve 220. Due to the clamping effect of the special-shaped locating pin 22 and the special-shaped pin sleeve 220, the movable forming mechanism 21 is supported on the bottom of the casting by rotating around the positioning shaft 23 upward.

[0022] See also Figure 1-6 The outside of the phenolic resin sand core 1 is sleeved with a metal mold, the movable molding mechanism 21 is rotatably connected to one end of the inner cavity of the metal mold through the positioning shaft 23, the special-shaped pin sleeve 220 is fixedly connected to one end of the inner cavity of the metal mold, and a casting chamber is formed between the top of the supporting protrusion 24 and the metal mold. A special-shaped groove 221 is opened inside the special-shaped pin sleeve 220, and a slope shape that is mutually clamped is set between the special-shaped groove 221 and the special-shaped positioning pin 22.

[0023] When in use, when the phenolic resin sand core 1 needs to be placed for mold closing, a casting chamber is formed between the top of the movable molding mechanism 21 and the metal mold to ensure that the casting can be supported when the mold is closed, so that when the casting is horizontally parted, the corners and curved surface cavities that cannot be processed inside can be filled. When the special-shaped locating pin 22 is combined with the special-shaped pin sleeve 220, due to the slope shape of the mutual engagement between the special-shaped locating pin 22 and the special-shaped pin sleeve 220, the movable molding mechanism 21 can be supported upward at the bottom of the casting, so that the mold manufacturing process During the casting process, there will be no situation where the mold cannot be made. The movable molding mechanism 21 is connected to the inner cavity of the metal mold through the positioning shaft 23, so that the movable molding mechanism 21 can be fixed inside the metal mold when the special-shaped positioning pin 22 is engaged with the special-shaped pin sleeve 220. When the casting needs to be taken out, the metal mold is opened after the casting is completed. Since the special-shaped positioning pin 22 is separated from the inside of the special-shaped pin sleeve 220, the movable molding mechanism 21 swings downward under the fixing action of the positioning shaft 23 until it is stuck in the metal mold, which is convenient for taking out the casting supported by the top.

[0024] In this embodiment, a new type of metal mold auxiliary forming tooling is provided. Among the above components, its own structural features and working principles all adopt the existing technology and will not be described in detail here.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel metal mold auxiliary molding tool, comprising a phenolic resin sand core (1), characterized in that: An auxiliary component (2) is provided at the bottom of the phenolic resin sand core (1); The auxiliary component (2) comprises a movable forming mechanism (21), the top of the movable forming mechanism (21) is provided with a supporting protrusion (24) protruding upward, one end of the movable forming mechanism (21) is provided with a fixing groove (25), the other end of the movable forming mechanism (21) is provided with a second fixing groove (26), the interior of the fixing groove (25) is fixedly connected with a special-shaped positioning pin (22), the interior of the second fixing groove (26) is rotatably connected with a positioning shaft (23), and the exterior of the special-shaped positioning pin (22) is sleeved with a special-shaped pin sleeve (220).

2. The novel metal mold auxiliary forming tooling according to claim 1 is characterized in that: The outside of the phenolic resin sand core (1) is sleeved with a metal mold.

3. The new metal mold auxiliary forming tooling according to claim 1 is characterized in that: The movable molding mechanism (21) is rotatably connected to one end of the inner cavity of the metal mold via a positioning shaft (23).

4. The novel metal mold auxiliary forming tooling according to claim 1 is characterized in that: The special-shaped pin sleeve (220) is fixedly connected to one end of the inner cavity of the metal mold.

5. The novel metal mold auxiliary forming tooling according to claim 1 is characterized in that: A casting cavity is formed between the top of the supporting protrusion (24) and the metal mold.

6. The novel metal mold auxiliary forming tooling according to claim 4 is characterized in that: A special-shaped clamping groove (221) is provided inside the special-shaped pin sleeve (220), and a slope shape for mutual clamping is provided between the special-shaped clamping groove (221) and the special-shaped positioning pin (22).

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