Forming device for automobile piston production

Abstract

The utility model discloses a forming device for automobile piston production, which comprises a first casting mould and a second casting mould, a first casting groove is arranged on the inner wall of the first casting mould, a second casting groove is arranged on the inner wall of the second casting mould, and the first casting groove and the second casting groove are combined to be used for casting and forming an automobile piston. Four pull rods are connected to the outer wall of the first casting mold in a welded mode, inserting grooves are formed in the inner wall of the second casting mold, and the pull rods and the inserting grooves are connected in a one-to-one correspondence, matched and inserted mode. And therefore, the first casting mold and the second casting mold can be conveniently and rapidly combined to perform integrated casting molding on the automobile piston, and the molding efficiency of the automobile piston is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile piston production equipment, in particular to a molding device for automobile piston production. Background Art

[0002] During engine operation, the piston converts the heat energy generated by fuel combustion into mechanical energy through its reciprocating motion within the cylinder. Specifically, the piston is pushed downward by the high pressure generated by the burning mixture within the cylinder. This force is transmitted to the crankshaft through the connecting rod, causing the crankshaft to rotate and thus achieve power output. The piston's motion trajectory and speed directly affect the engine's power and torque output. A well-designed piston can complete the energy conversion process as efficiently as possible while ensuring strength and durability. A dynamic sealing system is formed between the piston and the cylinder wall to prevent leakage of the mixture and post-combustion exhaust gases. The piston is typically equipped with piston rings, including an air ring and an oil ring. The air ring mainly plays the role of sealing gas to prevent the high-pressure gas in the combustion chamber from leaking into the crankcase; the oil ring is responsible for scraping the excess oil on the cylinder wall back to the crankcase, and at the same time forming a thin oil film on the cylinder wall to reduce the friction and wear between the piston and the cylinder wall. The existing automobile piston production generally forms the main body of the automobile piston by cutting aluminum blocks. This processing efficiency is low and it will cause a large amount of aluminum waste. It is not convenient to improve the utilization rate of aluminum, save processing costs and improve processing efficiency. Utility Model Content

[0003] The purpose of the present utility model is to provide a molding device for automobile piston production to solve the problems raised in the above background technology.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A molding device for producing automobile pistons includes a first casting mold and a second casting mold. A first casting groove is provided on the inner wall of the first casting mold, and a second casting groove is provided on the inner wall of the second casting mold. The first casting groove and the second casting groove are combined for casting and molding automobile pistons. Tie rods are welded to the outer wall of the first casting mold, and four tie rods are provided. Slots are provided on the inner wall of the second casting mold. The tie rods and the slots are plug-connected in a one-to-one manner. A casting feeding hole is provided at the connection between the tops of the first casting mold and the second casting mold. The casting feeding hole is set to be circular and is connected to the inner wall of the top of the first casting groove.

[0006] In a preferred embodiment of the present invention, the inner wall of the casting feeding hole is equipped with a plug-in connection plug, a hand wheel is provided on the top of the plug, and the bottom end of the plug is set to a smooth surface.

[0007] In a preferred embodiment of the present invention, a first groove is formed on the outer wall of the automobile piston, a second groove is provided below the first groove, and an ear hook is integrally connected to the bottom end of the automobile piston.

[0008] In a preferred embodiment of the present invention, a crank connection hole is provided on the inner wall of the ear hook, and a through hole is provided at the connection between the side walls of the first casting mold and the second casting mold.

[0009] In a preferred embodiment of the present invention, the through hole is the same size as the crank connection hole, the through hole is connected to the crank connection hole, a metal rod is inserted through the inner wall of the connection hole, and the surface of the metal rod is coated with a release agent.

[0010] In a preferred embodiment of the present invention, a socket is provided on the inner wall of the pull rod, the socket is located on the outside of the second casting mold, the inner wall of the socket is plugged into the locking frame, and a handle is welded to the top outer wall of the locking frame.

[0011] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention.

[0012] 1. The first casting mold and the second casting mold are connected by mortise and tenon joints, which facilitates quick mold closing and demoulding. The pull rod and locking frame are used in conjunction to facilitate quick fixation of the first casting mold and the second casting mold, thereby improving work efficiency.

[0013] 2. By setting the first casting mold and the second casting mold as a split structure, it is convenient to quickly complete the combination of the first casting mold and the second casting mold to perform integrated casting molding of the automobile piston, thereby improving the molding efficiency of the automobile piston. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0015] Figure 1 This is a schematic diagram of the main structure of a molding device for producing automobile pistons;

[0016] Figure 2 This is a schematic diagram of the exploded structure of a molding device for producing automobile pistons;

[0017] Figure 3 This is a schematic diagram of the structure of the first casting mold in a molding device for producing automobile pistons;

[0018] Figure 4 This is a schematic diagram of the structure of the second casting mold in a molding device for producing automobile pistons;

[0019] Figure 5 The figure is a schematic diagram of the structure of an automobile piston in a molding device for automobile piston production.

[0020] In the figure: first casting mold 100, pull rod 110, casting feeding hole 120, first casting trough 130, through hole 140, second casting mold 200, slot 210, second casting trough 220, metal rod 230, plug 240, locking frame 250, handle 251, automobile piston 300, first groove 310, second groove 320, ear hook 330, crank connecting hole 340. DETAILED DESCRIPTION

[0021] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0022] Example 1: Figures 1-4 , including a first casting mold 100 and a second casting mold 200, the first casting mold 100 has a first casting groove 130 on its inner wall, the second casting mold 200 has a second casting groove 220 on its inner wall, the first casting groove 130 and the second casting groove 220 are combined for casting and forming the automobile piston 300, the first casting mold 100 has a tie rod 110 welded to the outer wall, and there are four tie rods 110, the second casting mold 200 has a slot 210 on its inner wall, the tie rod 110 and the slot 210 are plug-connected in a one-to-one correspondence, a casting feeding hole 120 is provided at the connection between the top of the first casting mold 100 and the second casting mold 200, the casting feeding hole 120 is set to be circular, and the casting feeding hole 120 is connected to the inner wall of the top of the first casting groove 130.

[0023] The specific usage scenario of this embodiment is: by setting the first casting mold 100 and the second casting mold 200 to be connected by mortise and tenon joints, it is convenient to quickly close and demold the mold; by setting the pull rod 110 and the locking frame 250 for use in conjunction, it is convenient to quickly fix the first casting mold 100 and the second casting mold 200, thereby improving work efficiency.

[0024] Example 2: Figure 2 The inner wall of the casting feeding hole 120 is matched with the plug connection plug 240, the top of the plug 240 is provided with a hand wheel, and the bottom end of the plug 240 is set to a smooth surface.

[0025] The specific usage scenario of this embodiment is: providing a plug 240 to compact the metallic aluminum liquid inside the first casting trough 130 .

[0026] Example 3: Figure 3-Figure 5 A first groove 310 is provided on the outer wall of the automobile piston 300, and a second groove 320 is provided below the first groove 310. An ear hook 330 is integrally connected to the bottom end of the automobile piston 300, and a crank connection hole 340 is provided on the inner wall of the ear hook 330. A through hole 140 is provided at the connection between the side walls of the first casting mold 100 and the second casting mold 200. The through hole 140 is the same size as the crank connection hole 340, and the through hole 140 is connected to the crank connection hole 340. The inner wall of the connection hole 340 is penetrated by a metal rod 230 for insertion and connection, and the surface of the metal rod 230 is coated with a release agent.

[0027] The specific usage scenario of this embodiment is: by setting an ear hook 330, and setting a crank connection hole 340 on the ear hook 330 for connecting the crank, and by setting a through hole 140 to cooperate with the plug-in connection metal rod 230, it is convenient to reserve the crank connection hole 340 in the ear hook 330, thereby facilitating the integrated casting molding operation of the automobile piston 300.

[0028] Example 4: Figure 3 and Figure 4 The inner wall of the pull rod 110 is provided with a socket 111, which is located on the outside of the second casting mold 200. The inner wall of the socket 111 is plugged into the locking frame 250, and the top outer wall of the locking frame 250 is welded with a handle 251.

[0029] The specific usage scenario of this embodiment is: by providing the socket 111 and the locking frame 250 for plug-in connection, the first casting mold 100 and the second casting mold 200 can be locked, thereby facilitating the casting and molding of the automobile piston 300.

[0030] The working principle of the present invention is as follows: when in use, a person skilled in the art connects the first casting mold 100 and the second casting mold 200 by means of the pull rod 110 and the slot 210, and then inserts the locking frame 250 into the socket 111 by means of the handheld handle 251 to lock the first casting mold 100 and the second casting mold 200, and then inserts the metal rod 230 into the through hole 140, and then heats the metal aluminum rod used to make the automobile piston 300 to form a liquid, and feeds the metal aluminum liquid into the casting feed hole 120. It is sent to the interior of the first casting trough 130 and the second casting trough 220. After filling the cavities inside the first casting trough 130 and the second casting trough 220, the plug 240 is inserted into the top of the casting feeding hole 120 by holding the hand wheel on the top of the plug 240 to compact the metal aluminum liquid inside the casting feeding hole 120. After the metal aluminum liquid cools and hardens, the metal rod 230 is pulled out, the locking frame 250 is taken out, and then the first casting mold 100 and the second casting mold 200 are separated to take out the formed automobile piston 300.

[0031] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A molding device for producing automobile pistons, comprising a first casting mold (100) and a second casting mold (200), wherein the inner wall of the first casting mold (100) is provided with a first casting groove (130), and the inner wall of the second casting mold (200) is provided with a second casting groove (220), characterized in that: The first casting trough (130) and the second casting trough (220) are combined for casting an automobile piston (300); the outer wall of the first casting mold (100) is welded with a tie rod (110); four tie rods (110) are provided; the inner wall of the second casting mold (200) is provided with a slot (210); the tie rod (110) and the slot (210) are plug-connected in a one-to-one correspondence; a casting feeding hole (120) is provided at the connection between the top of the first casting mold (100) and the second casting mold (200); the casting feeding hole (120) is set to be circular; the casting feeding hole (120) is connected to the inner wall of the top of the first casting trough (130).

2. A molding device for automobile piston production according to claim 1, characterized in that: The inner wall of the casting feeding hole (120) is matched with a plug-connecting plug (240), a hand wheel is provided on the top of the plug (240), and the bottom end of the plug (240) is provided with a smooth surface.

3. The molding device for automobile piston production according to claim 1, characterized in that: The outer wall of the automobile piston (300) is provided with a first groove (310), a second groove (320) is provided below the first groove (310), and the bottom end of the automobile piston (300) is integrally connected with an ear hook (330).

4. A molding device for automobile piston production according to claim 3, characterized in that: A crank connection hole (340) is provided on the inner wall of the ear hook (330), and a through hole (140) is provided at the connection between the side walls of the first casting mold (100) and the second casting mold (200).

5. The molding device for automobile piston production according to claim 4, characterized in that: The through hole (140) is the same size as the crank connection hole (340), the through hole (140) is connected to the crank connection hole (340), the inner wall of the connection hole (340) is penetrated by a plug-connected metal rod (230), and the surface of the metal rod (230) is coated with a release agent.

6. The molding device for automobile piston production according to claim 1, characterized in that: The inner wall of the pull rod (110) is provided with a socket (111), and the socket (111) is located outside the second casting mold (200). The inner wall of the socket (111) is plugged into a locking frame (250), and a handle (251) is welded to the top outer wall of the locking frame (250).

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