Piston casting forming die
By designing a piston casting mold containing arc-shaped limiting grooves and limiting rings, the problem of cumbersome demolding process during the piston casting molding process is solved, and convenient casting and molding of the piston is achieved, which improves working efficiency and protects the mold and workpiece.
Patent Information
- Application Number
- CN202422116292.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-08-30
AI Technical Summary
During the piston casting and molding process, during the cooling and film removal process, it is necessary to manually use tools to knock the mold to forcefully separate the cast workpiece from the mold. The process is cumbersome and easy to damage the mold and workpiece.
A piston casting mold is designed, including the first block and the second block being connected by a connecting piece, with an arc-shaped limiting groove and a limiting ring body on the side, and a casting port and a die core are provided on the mold base. Through these structures, the mold core and the die base are engaged and fixed, and the material is poured into the mold cavity through the casting port, so as to achieve casting molding and convenient mold release of the piston.
It realizes convenient casting and molding of the piston, simplifies operation, reduces manpower and material consumption, improves work efficiency, and effectively protects molds and workpieces.
Smart Images
Figure CN222957456U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of molds, in particular to a piston casting mold. Background Art
[0002] A casting mold refers to a mold that is made of other easily moldable materials in advance to obtain the structural shape of a part. Then, the mold is placed in a sand mold, and a cavity identical to the structural dimensions of the part is formed in the sand mold. Next, a fluid liquid is poured into the cavity for molding. After the liquid cools and solidifies, a part with the same shape and structure as the mold can be formed.
[0003] An automotive piston is used to bear gas pressure and drive the crankshaft to rotate through a piston pin by a connecting rod. The top of the piston is also a part of the combustion chamber. Automotive pistons are mostly made by the casting process. By pouring high-temperature molten metal into a mold, then cooling and demolding, and finally cutting and grinding. During the cooling and demolding process, the cast workpiece is forcibly separated from the mold manually, and tools are needed to continuously knock the mold to demold the cast workpiece. The process is troublesome and the mold and the cast workpiece are easily damaged. Summary of the Invention
[0004] In view of this, the purpose of the utility model is to provide a piston casting mold that can realize piston casting and is convenient for demolding.
[0005] The utility model is realized by the following method: A piston casting mold, characterized in that: it includes a first block and a second block, the first block and the second block are connected by a connecting piece, first arc-shaped limiting grooves are provided on the sides of the first block and the second block, second arc-shaped limiting grooves are provided at both the upper and lower ends in the first arc-shaped limiting grooves, a mold base is limited in the first arc-shaped limiting grooves, a pouring port is provided on the mold base, a mold core is provided on the mold base, and the mold core, the mold base, the first block and the second block cooperate to form a molding cavity.
[0006] Further, a first limiting ring body corresponding to the second arc-shaped limiting groove at the lower end is provided on the outer side surface of the mold base, and a second limiting ring body corresponding to the second arc-shaped limiting groove at the upper end is provided on the outer side surface of the mold core.
[0007] Further, the connecting piece includes a first extension block and a second extension block. The first extension blocks are provided at both the upper and lower surfaces of the right end of the first block, the second extension blocks are provided at both the upper and lower surfaces of the left end of the second block, and the first extension block and the second extension block are connected and fixed by bolts.
[0008] The beneficial effects of the present utility model are as follows: The present utility model adds a pouring port, a second pouring port, a connecting piece, a mold core, a first arc-shaped limiting groove and a second arc-shaped limiting groove in the device, which can realize the clamping and fixing of the mold core and the mold base. Then, the material is poured upward from the pouring port into the forming cavity to realize piston pouring molding. After molding, demolding can be easily achieved through disassembly and assembly; the structure of the present utility model is simple, the operation is convenient, it can effectively save manpower and material resources, and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 is a schematic structural diagram of the present utility model.
[0010] Figure 2 is an exploded view of the present utility model.
[0011] Figure 3 is a schematic structural diagram of the first block and the second block. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0012] The following further describes the present utility model with reference to the drawings.
[0013] Please refer to Figures 1 to 3 As shown, the present utility model provides an embodiment: A piston casting mold includes a first block 1 and a second block 2. The first block 1 and the second block 2 are connected and arranged through a connecting piece 3. First arc-shaped limiting grooves 11 are formed on the sides of the first block 1 and the second block 2. Second arc-shaped limiting grooves 12 are formed at both the upper and lower ends in the first arc-shaped limiting grooves 11. A mold base 4 is limitedly arranged in the first arc-shaped limiting grooves 11. A pouring port 41 is formed on the mold base 4. A mold core 5 is arranged on the mold base 4. The mold core 5, the mold base 4, the first block 1 and the second block 2 cooperate to form a forming cavity 51. By installing the mold core 5 and the mold base 4 in the first arc-shaped limiting grooves 11, through the action of the connecting piece 3, the connection and fixation of the first block 1 and the second block 2 can be realized. Then, the material is poured from the bottom up into the forming cavity 51 through the pouring port 41, so that the casting molding of the piston can be realized. Then, demolding can be easily achieved through disassembly and assembly.
[0014] Please continue to refer to Figure 1 and Figure 2As shown in the figure, in an embodiment of the present utility model, a first limiting ring body 42 corresponding to the second arc-shaped limiting groove 12 at the lower end is provided on the outer side surface of the mold base 4, and a second limiting ring body 43 corresponding to the second arc-shaped limiting groove 12 at the upper end is provided on the outer side surface of the mold core 5. Through the action of the first limiting ring body 42, the mold base 4 can be installed and fixed between the first block 1 and the second block 2, and through the action of the second limiting ring body 43, the mold core 5 can be installed and fixed between the first block 1 and the second block 2.
[0015] Please continue to refer to Figures 1 to 3 As shown in the figure, in an embodiment of the present utility model, the connecting member 3 includes a first extension block 31 and a second extension block 32. The first extension block 31 is provided at both the upper and lower surfaces of the right end of the first block 1, and the second extension block 32 is provided at both the upper and lower surfaces of the left end of the second block 2. The first extension block 31 and the second extension block 32 are connected and fixed by bolts 33. Through the fixing of the first extension block 31 and the second extension block 32 by bolts 33, the connection and fixing between the first block 1 and the second block 2 can be realized.
[0016] The above are only the preferred embodiments of the present utility model, and all equivalent changes and modifications made according to the scope of the patent application of the present utility model shall fall within the scope covered by the present utility model.
Claims
1. A piston casting mold, characterized in that: The invention comprises a first block and a second block, wherein the first block and the second block are connected via a connecting piece, first arc-shaped limit grooves are provided on the sides of the first block and the second block, second arc-shaped limit grooves are provided at both upper and lower ends of the first arc-shaped limit groove, a mold base is provided in the first arc-shaped limit groove for limiting, a pouring port is provided on the mold base, a mold core is provided on the mold base, and the mold core, the mold base, the first block and the second block cooperate to form a molding cavity.
2. A piston casting mold according to claim 1, characterized in that: The outer side surface of the mold base is provided with a first limiting ring body corresponding to the second arc-shaped limiting groove at the lower end, and the outer side surface of the mold core is provided with a second limiting ring body corresponding to the second arc-shaped limiting groove at the upper end.
3. The piston casting mold according to claim 1, characterized in that: The connecting member includes a first extension block and a second extension block. The first extension block is disposed at the right end of the upper and lower surfaces of the first block body, and the second extension block is disposed at the left end of the upper and lower surfaces of the second block body. The first extension block and the second extension block are fixed by bolt connection.