Precision casting mold with rapid forming effect

Abstract

In order to solve the technical problems that a mold in the prior art is low in cooling speed and multiple in finished product sand holes during casting, a sliding barrel is slidably connected to a rotating shaft, a pressing plate is rotatably connected to the outer portion of the sliding barrel, a spring is in contact with the lower surface of the pressing plate and connected to the inner bottom wall of a cooling box, and a lower mold is connected to the upper end of the sliding barrel. An upper mold is buckled above the lower mold, a limiting sliding rod is connected to the upper mold, the limiting sliding rod is slidably connected into the lower mold, the upper portion of the upper mold is rotationally connected and communicated with a material injection pipe, an upper cover is connected to the outer portion of the material injection pipe and can be buckled to the upper end of the cooling box, and the two ends of a hydraulic cylinder are connected between the upper cover and the cooling box; the metal liquid is injected between the upper mold and the lower mold, and the lower mold drives the upper mold to rotate, so that the metal liquid centrifugally enters the forming mold at the edges of the upper mold and the lower mold, the finished product is compact in structure under the centrifugal effect, and the forming speed is very high due to the fact that the finished product is immersed in the cooling liquid in the whole process.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, and specifically relates to a precision casting mold with rapid prototyping effect. Background Art

[0002] With the development of science and technology, the quality and performance requirements for precision casting products are also constantly increasing. This requires casting molds to have higher precision, better surface quality and more reasonable internal structure. For example, in the casting of medical implants, the accuracy of the mold directly affects the dimensional accuracy and performance of the implant. Rapid prototyping technology can produce high-precision molds to meet the needs of high-quality castings. At the same time, for some castings that require special properties, such as molds with complex cooling channels, the cooling uniformity of the casting can be improved, thereby improving the internal structure and performance of the casting. This has also promoted the application of rapid prototyping technology in the manufacture of precision casting molds.

[0003] The existing mold has a slow cooling speed during casting, and the finished product has many sand holes. There is room for improvement in molding speed and precision. The utility model solves the above problems. Utility Model Content

[0004] The utility model aims to solve the technical problems of the prior art molds in that the cooling speed is slow, the finished product has many sand holes during casting, and there is room for improvement in molding speed and precision, thereby providing a precision casting mold with rapid molding effect.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a precision casting mold with rapid prototyping effect, comprising: a cooling box, the bottom wall of the cooling box is rotatably connected to a rotating shaft, a slide rail is provided on the rotating shaft, a slide cylinder is slidably connected to the rotating shaft, the outside of the slide cylinder is rotatably connected to a pressure plate, the lower surface of the pressure plate contacts a spring, the spring is connected to the bottom wall inside the cooling box, the upper end of the slide cylinder is connected to the lower mold, the upper part of the lower mold is buckled with an upper mold, the upper mold is connected to a limiting slide rod, the limiting slide rod is slidably connected to the lower mold, the upper part of the upper mold is rotatably connected and connected to a material injection pipe, the outside of the material injection pipe is connected to an upper cover, the upper cover can be buckled on the upper end of the cooling box, and the two ends of the hydraulic cylinder are connected between the upper cover and the cooling box.

[0006] Preferably, the lower mold includes a mold frame, a molten liquid channel is provided on the upper surface of the mold frame, a mold is connected to the edge of the mold frame, the mold hole of the mold is connected to the molten liquid channel, the upper mold and the lower mold both include a mold frame and a molten liquid channel and are mirror-imaged, a through-hole injection hole is opened at the axis of the mold frame of the upper mold, the injection tube is installed in the positioning hole of the upper mold through a bearing, and the injection hole and the positioning hole are concentrically arranged.

[0007] Preferably, the mold includes positioning hole one and positioning hole two, which are opened at the edge of the mold frame and are connected to each other vertically. A positioning plate is inserted into positioning hole one, and the positioning plate is connected to the half mold. The stud passes through positioning hole two and the positioning plate hole and is fastened.

[0008] Compared with the prior art, the beneficial effects of the present invention are:

[0009] During casting, the upper and lower molds are interlocked and sunk into the coolant. The metal liquid is injected between the upper and lower molds. The lower mold drives the upper mold to rotate through the limit slide bar, so that the metal liquid is centrifuged into the forming mold at the edge of the upper and lower molds. Under the centrifugal action, the finished product has a dense structure, and because it is immersed in the coolant throughout the process, the forming speed is very fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0011] Figure 2 It is a schematic diagram of the structural cross section of the utility model;

[0012] Figure 3 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0013] Figure 4 This is a schematic diagram of the structure of the utility model Figure 3 .

[0014] In the figure: cooling box 1; rotating shaft 2; slide 3; pressure plate 4; spring 5; lower mold 6; mold frame 61; melt channel 62; upper mold 7; injection hole 71; positioning hole 72; limiting slide bar 8; injection pipe 9; upper cover 10; hydraulic cylinder 11; mold 12: positioning hole 121; positioning hole 2 122; positioning piece 123; half mold 124; stud 125. DETAILED DESCRIPTION

[0015] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0016] The rotational connection described in this device refers to the process of baking the bearing on the shaft, providing a spring retaining ring groove on the shaft or the shaft hole, and clamping the elastic retaining ring in the retaining ring groove to achieve axial fixation of the bearing and realize rotation; the articulation refers to a connection method that is achieved by performing activities on connecting parts such as hinges, pins and short shafts.

[0017] The present invention will be described in detail below with reference to the accompanying drawings. Example

[0018] The following is combined with Figure 1-4 The present embodiment describes a precision casting mold with rapid prototyping effect, comprising: a cooling box 1, the bottom wall of the cooling box 1 is rotatably connected to a rotating shaft 2, a sliding rail is provided on the rotating shaft 2, a slide cylinder 3 is slidably connected to the rotating shaft 2, the slide cylinder 3 is externally rotatably connected to a pressure plate 4, the lower surface of the pressure plate 4 contacts a spring 5, the spring 5 is connected to the bottom wall of the cooling box 1, the upper end of the slide cylinder 3 is connected to a lower mold 6, an upper mold 7 is buckled above the lower mold 6, a limiting slide rod 8 is connected to the upper mold 7, the limiting slide rod 8 is slidably connected to the lower mold 6, the upper part of the upper mold 7 is rotatably connected and communicated with an injection pipe 9, the injection pipe 9 is externally connected to an upper cover 10, the upper cover 10 can be buckled to the upper end of the cooling box 1, and the two ends of a hydraulic cylinder 11 are connected between the upper cover 10 and the cooling box;

[0019] During use, the coolant in the cooling box 1 is kept full, the hydraulic cylinder 11 is controlled to contract, the upper cover 10 is pressed down, the upper cover 10 drives the injection pipe 9 to descend, the injection pipe 9 drives the upper mold 7 to descend, the limiting slide bar 8 slides in the lower mold 6 so that the upper mold 7 is buckled on the lower mold 6, and the mold 6 drives the slide cylinder 3 to slide downward so that both molds are immersed in the coolant until the upper cover 10 is buckled on the cooling box 1. At this time, under the action of the restoring force of the spring 5, the pressure plate 4 pushes the mold 6 and the lower mold 6 to be tightly buckled on the upper mold 7, and the molten metal liquid is injected between the two molds through the injection pipe 9. The power of the rotating shaft 2 is turned on, and the rotating shaft 2 drives the two molds to rotate, so that the metal liquid is centrifugally entered into the forming mold at the edge of the upper and lower molds. Under the centrifugal action, the finished product structure is dense, and because it is immersed in the coolant throughout the process, the forming speed is very fast.

[0020] The lower mold 6 includes a mold frame 61, and a melt channel 62 is provided on the upper surface of the mold frame 61. The edge of the mold frame 61 is connected to the mold 12, and the mold hole of the mold 12 is connected to the melt channel 62. The upper mold 7 and the lower mold 6 both include a mold frame and a melt channel and are arranged in a mirror image. The mold frame axis of the upper mold 7 is provided with a through hole injection hole 71. The injection pipe 9 is installed in the positioning hole 72 of the upper mold 7 through a bearing. The injection hole 71 and the positioning hole 72 are arranged concentrically.

[0021] When the lower mold 6 and the upper mold 7 are buckled together, the molten metal channel and the mold 12 are buckled together, and the injection pipe 9 injects molten metal into the injection hole 71. The molten metal is centrifuged into the mold 12 through the molten metal channel to complete the casting.

[0022] The mold 12 includes a first positioning hole 121 and a second positioning hole 122. The first positioning hole 121 and the second positioning hole 122 are provided at the edge of the mold frame and are arranged perpendicularly to each other. A positioning piece 123 is inserted into the first positioning hole 121, and the positioning piece 123 is connected to the half mold 124. A stud 125 passes through the second positioning hole 122 and the positioning piece 123 and is fastened.

[0023] When installing the mold 12, the positioning piece 123 is inserted into the positioning hole 121, and then the stud 125 is passed through the positioning hole 2 122 and the positioning piece 123 hole and fastened, completing the positioning of the half mold 124, so that different molds can be easily replaced.

[0024] In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0025] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0026] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A precision casting mold with rapid prototyping function, characterized by: include: A cooling box (1) is provided, wherein the bottom wall of the cooling box (1) is rotatably connected to a rotating shaft (2), a sliding rail is provided on the rotating shaft (2), a slide cylinder (3) is slidably connected to the rotating shaft (2), the slide cylinder (3) is externally rotatably connected to a pressure plate (4), the lower surface of the pressure plate (4) contacts a spring (5), the spring (5) is connected to the inner bottom wall of the cooling box (1), the upper end of the slide cylinder (3) is connected to a lower mold (6), an upper mold (7) is buckled above the lower mold (6), a limiting slide rod (8) is connected to the upper mold (7), the limiting slide rod (8) is slidably connected to the lower mold (6), the upper part of the upper mold (7) is rotatably connected and connected to an injection pipe (9), the injection pipe (9) is externally connected to an upper cover (10), the upper cover (10) can be buckled on the upper end of the cooling box (1), and the two ends of a hydraulic cylinder (11) are connected between the upper cover (10) and the cooling box.

2. A precision casting mold with rapid prototyping function according to claim 1, characterized in that: The lower mold (6) includes a mold frame (61), a molten metal channel (62) is provided on the upper surface of the mold frame (61), the edge of the mold frame (61) is connected to the mold (12), the mold hole of the mold (12) is connected to the molten metal channel (62), the upper mold (7) and the lower mold (6) both include a mold frame and a molten metal channel and are arranged in a mirror image, the mold frame axis of the upper mold (7) is provided with a through hole injection hole (71), the injection pipe (9) is installed in the positioning hole (72) of the upper mold (7) through a bearing, and the injection hole (71) and the positioning hole (72) are arranged concentrically.

3. The precision casting mold with rapid prototyping function according to claim 2, characterized in that: The mold (12) includes a first positioning hole (121) and a second positioning hole (122). The first positioning hole (121) and the second positioning hole (122) are provided at the edge of the mold frame and are vertically connected to each other. A positioning piece (123) is inserted into the first positioning hole (121). The positioning piece (123) is connected to the half mold (124). The stud (125) passes through the second positioning hole (122) and the positioning piece (123) and is fastened.

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