Automobile cylinder block mold

Abstract

The utility model discloses an automobile cylinder block mold, belongs to the technical field of mold equipment, and aims to provide an automobile cylinder block mold with higher production efficiency, the automobile cylinder block mold comprises a fixed mold, the upper surface of the fixed mold is provided with lower mold cavities, the bottom surface of the fixed mold is provided with a tube bank cavity, and the tube bank cavity surrounds all the lower mold cavities; the fixed mold is provided with cooling pipes in the calandria cavities, the single cooling pipe is suitable for bypassing all the calandria cavities, the two ends of each cooling pipe are a water inlet end and a water outlet end respectively, the bottom surface of the fixed mold is fixedly connected with a heat insulation bottom plate which is suitable for shielding the calandria cavities, a movable mold is arranged above the fixed mold, and the movable mold is provided with a water inlet and a water outlet. Inner mold blocks are arranged on the lower surface of the movable mold, the number and the positions of the inner mold blocks correspond to those of the lower mold cavities, and a casting end is further arranged on the movable mold. According to the utility model, a plurality of mold cavity structures are arranged and are connected with the same casting end, so that the mold can be used for casting and molding a plurality of automobile cylinder bodies at one time, and the output efficiency of the cylinder bodies is effectively improved.

Description

Technical Field

[0001] The present application relates to the technical field of mold equipment, and in particular to an automobile cylinder block mold. Background Art

[0002] The automobile cylinder block is an important component of the engine. It is an integrated structure and is usually cast by casting. The casting method mostly uses sand mold assembly. One sand mold can only cast one cylinder block, and the heat dissipation rate of the sand mold is relatively low. Cooling and molding also takes a long time, so the production efficiency of automobile cylinder blocks is relatively low. Summary of the invention

[0003] The purpose of the present application is to provide an automobile cylinder block mold with higher production efficiency.

[0004] To achieve the above objectives, the present application provides an automobile cylinder block mold: comprising a fixed mold, a lower mold cavity is formed on the upper surface of the fixed mold, a tube row cavity is formed on the bottom surface of the fixed mold, the tube row cavity surrounds all the lower mold cavities, a cooling pipe is arranged in the tube row cavity of the fixed mold, a single cooling pipe is suitable for bypassing all the tube row cavities, the two ends of the cooling pipe are respectively a water inlet end and a water discharge end, an insulating bottom plate is fixedly connected to the bottom surface of the fixed mold, suitable for shielding the tube row cavity, a movable mold is arranged above the fixed mold, the lower surface of the movable mold has an inner module, the number and position of the inner module correspond to the lower mold cavity, and a casting end is also arranged on the movable mold, suitable for communicating with all the lower mold cavities, so that the casting liquid can enter the mold cavity.

[0005] As a preference, the cooling pipe includes a lower folded pipe, one end of the lower folded pipe is a water inlet end, and the other end is bent upward and connected to an upper folded pipe, the other end of the upper folded pipe is bent downward and connected to a middle folded pipe, and the other end of the middle folded pipe is a drainage end, and the cooling pipe has a surrounding three-dimensional structure that can fill the drainage tube cavity.

[0006] Preferably, the outer side surface of the movable mold is provided with an inlet and an outlet penetrating the drain tube cavity, the water inlet end extends to the outside of the fixed mold through the inlet, and the drain end extends to the outside of the fixed mold by passing through the outlet, for connection with an external pipe of the heat exchanger.

[0007] As a preference, the inner bottom surface of the lower mold cavity is the upper surface of the thermal insulation bottom plate, so as to facilitate the specific structure of the bottom of the mold cavity at the cutting location.

[0008] As a preferred embodiment, there are four groups of combinations of the inner modules and the lower mold cavities, and the four groups of the inner modules and the lower mold cavities are equidistantly arranged around the geometric center of the movable mold, and the uniform distribution is conducive to uniform heat dissipation.

[0009] Preferably, a runner is provided on the lower surface of the movable mold, and the runner extends toward the inner mold section. The runner is suitable for being connected to the casting end and the lower mold cavity at the same time to form a continuous raw material accommodating cavity.

[0010] Preferably, a guide rod is fixedly connected to the upper surface of the movable mold, and the movable mold is provided with a guide hole penetrating the upper and lower surfaces, which is suitable for cooperating with the guide rod to form a sliding pair to ensure the movement accuracy and stability of the movable mold relative to the fixed mold.

[0011] As a preferred embodiment, the upper end of the guide rod passes through the guide hole and is fixedly connected to a limiting ring for limiting the maximum lifting height of the movable mold.

[0012] Compared with the prior art, the beneficial effects of this application are:

[0013] (1) By providing multiple mold cavity structures and connecting the same casting end, the mold can cast multiple automobile cylinder bodies at one time, effectively improving the output efficiency of the cylinder bodies;

[0014] (2) By setting up a three-dimensional cooling pipe structure surrounding all mold cavities in the fixed mold, the casting and cooling molding can be accelerated, the cooling time can be further shortened, and the production efficiency can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The first schematic diagram of the three-dimensional structure of the automobile cylinder block mold;

[0016] Figure 2 is a second schematic diagram of the three-dimensional structure of the automobile cylinder block mold;

[0017] Figure 3 The figure is a three-dimensional structural diagram of the cooling pipe of the automobile cylinder block mold arranged in the fixed mold;

[0018] Figure 4 The figure is a three-dimensional structural diagram of the fixed mold of the automobile cylinder mold;

[0019] Figure 5 The figure is a schematic diagram of the three-dimensional structure of the cooling pipe of the automobile cylinder block mold;

[0020] Figure 6 The figure is a three-dimensional structural schematic diagram of the movable mold of the automobile cylinder mold;

[0021] Figure 7 It is a three-dimensional structural cross-sectional view of the movable mold of the automobile cylinder block mold.

[0022] In the figure: 1. movable mold; 101. inner mold block; 102. guide hole; 103. casting end; 104. diverter; 2. fixed mold; 201. insulation bottom plate; 202. pipe cavity; 203. inlet; 204. outlet; 205. lower mold cavity; 206. guide rod; 207. limit ring; 3. cooling pipe; 301. water inlet end; 302. drainage end; 303. lower layer folded pipe; 304. upper layer folded pipe; 305. middle layer folded pipe. DETAILED DESCRIPTION

[0023] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0024] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present application.

[0025] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0026] The terms "including" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0027] like Figure 1-7The automobile cylinder block mold shown includes a fixedly arranged fixed mold 2, and a lower mold cavity 205 is opened on the upper surface of the fixed mold 2. The inner wall of the lower mold cavity 205 has the same shape as the outer surface of the engine housing, and will be cut out accordingly according to the structural characteristics of the outer surface of the engine housing. This belongs to the prior art and is not shown in the accompanying drawings for the sake of simplified expression. A tube row cavity 202 is opened on the bottom surface of the fixed mold 2. The tube row cavity 202 is not connected to the lower mold cavity 205, but is separated by an alloy material with a thickness roughly uniform. The tube row cavity 202 surrounds all the lower mold cavities 205. In this embodiment, four lower mold cavities 205 are arranged, and the four lower mold cavities 205 are equidistantly arranged around the geometric center of the fixed mold 2. In order to surround all the lower mold cavities 205, the tube row cavity 202 will be arranged in a field shape.

[0028] The fixed mold 2 is provided with a cooling pipe 3 in the tube cavity 202 for absorbing the heat of the mold and quickly cooling and forming the material in the mold cavity. The cooling pipe 3 in the tube cavity 202 is a single cooling pipe 3, which can bypass all the tube cavities 202. The two ends of the cooling pipe 3 are naturally the water inlet end 301 and the drainage end 302, respectively. In order to achieve full coverage at one time, the part between the water inlet end 301 and the drainage end 302 will be bent to form a three-dimensional structure. Specifically: the middle part of the cooling pipe 3 includes a lower folded pipe 303, and the lower folded pipe 303 will be bent four times in the same plane, one end of the lower folded pipe 303 is the water inlet end 301, and the other end of the lower folded pipe 303 will be bent upward for the last time to connect to the upper folded pipe 304, and the upper folded pipe 304 will be bent three times in another plane, and the other end of the upper folded pipe 304 will be bent upward for the last time to connect to the upper folded pipe 304. The middle folded tube 305 is bent downward for the second time to connect. The height of the middle folded tube 305 is between the upper folded tube 303 and the lower folded tube 304, and no bending is required. The other end of the middle folded tube 305 is the drainage end 302. Cooling water enters from the water inlet end 301, passes through the lower folded tube 303, the upper folded tube 304 and the middle folded tube 305, and then is discharged from the drainage end 302. In this way, coolant flows through all parts of the drainage tube cavity 202, and the heat in each lower mold cavity 205 is absorbed. An inlet 203 and an outlet 204 that pass through the drainage tube cavity 202 are provided on the outer side of the movable mold 1. The water inlet end 301 extends to the outside of the fixed mold 2 through the inlet 203, and is used to be connected to an external heat exchanger water supply pipe. The drainage end 302 extends to the outside of the fixed mold 2 by passing through the outlet 204, and is used to be connected to an external heat exchanger return pipe, thereby realizing the recycling of the coolant.

[0029] The bottom surface of the fixed mold 2 is fixedly connected with an insulating base plate 201 for shielding the exhaust tube cavity 202. The insulating base plate 201 is fixedly connected to the fixed mold 2 by a connecting piece, which is convenient for installation and disassembly. The insulating base plate 201 has a good thermal insulation effect and can improve the cooling efficiency. After the insulating base plate 201 is removed, the cooling tube 3 made of alloy can be conveniently installed in the exhaust tube cavity 202. The inner bottom surface of the lower mold cavity 205 is the upper surface of the insulating base plate 201. Therefore, the portion of the upper surface of the insulating base plate 201 corresponding to the lower mold cavity 205 also has a structure corresponding to the outer surface of the engine casing, which will be milled out according to the specific engine model. This idea is one of the design points of the present application, but the specific structure corresponding to the engine is not a design point, so it is not shown in the accompanying drawings.

[0030] A movable mold 1 is arranged above the fixed mold 2, and the two can cooperate to form a complete mold body. The upper surface of the movable mold 1 is fixedly connected with a guide rod 206, which is vertically arranged and perpendicular to the upper surface of the fixed mold 2. The movable mold 1 is provided with a guide hole 102 that passes through the upper and lower surfaces, which is used to cooperate with the guide rod 206 to form a sliding pair. There are usually four groups of guide holes 102 and guide rods 206, which are closed at the four corners of the movable mold 1 and the fixed mold 2. The upper end of the guide rod 206 passes through the guide hole 102 and is fixedly connected to a limit ring 207, which is used to set the maximum distance between the movable mold 1 and the fixed mold 2, which can effectively prevent the fixed mold 2 from detaching from the guide rod 206, and take into account the mold separation limit function. The lower surface of the mold 1 has an inner module 101, which is an important component for forming the internal structure of the engine cylinder block. Its outer surface also has a structure corresponding to the inner cavity of the engine cylinder block. Since its specific structure is relatively complex and is not the focus of the present application and does not affect the scope of protection of the present application, its details are not shown in the accompanying drawings. The number and position of the inner modules 101 correspond to the lower mold cavity 205, so there are four inner modules 101. The four groups of inner modules 101 are equidistantly arranged around the geometric center of the mold 1. That is to say, one inner module 101 cooperates with one lower mold cavity 205, and the two together form a complete mold cavity after the mold is closed.

[0031] The movable mold 1 is still provided with a casting end 103 for liquid raw materials to enter the movable mold 1. The casting end 103 will be connected with all the lower mold cavities 205 after the mold is closed. In order to achieve the connection, a branch channel 104 will be opened on the lower surface of the movable mold 1. There are also four branch channels 104. Each branch channel 104 extends in the direction of an inner module 101. The branch channel 104 can be connected with the casting end 103 and the lower mold cavity 205 at the same time, so that the liquid raw material will be poured into the molding cavity after the mold is closed.

[0032] Working principle: After the mold is closed, the four groups of inner modules 101 and the lower mold cavity 205 of the mold can form four molding cavities. Through the connection of four branch channels 104, the four molding cavities can be filled at one time after the raw material liquid is injected from the casting end 103. The coolant flowing through the cooling pipe 3 can evenly cool the four cavities at the same time, so that the material inside can be quickly cooled and formed; after the mold is separated, four engine cylinder molded parts can be obtained at one time, which effectively improves the production efficiency of the automobile cylinder body.

[0033] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. An automobile cylinder block mold, characterized in that: The invention comprises a fixed mold (2), wherein the upper surface of the fixed mold (2) is provided with a lower mold cavity (205), the bottom surface of the fixed mold (2) is provided with a row of tube cavities (202), the row of tube cavities (202) surrounds all the lower mold cavities (205), the fixed mold (2) is provided with a cooling tube (3) in the row of tube cavities (202), a single cooling tube (3) is suitable for bypassing all the row of tube cavities (202), and the two ends of the cooling tube (3) are respectively a water inlet end (301) and a discharge end (302). The fixed mold (2) is provided with a water end (302), and the bottom surface of the fixed mold (2) is fixedly connected with a heat-insulating bottom plate (201), which is suitable for shielding the row tube cavity (202). A movable mold (1) is arranged above the fixed mold (2), and the lower surface of the movable mold (1) has an inner module (101). The number and position of the inner module (101) correspond to the lower mold cavity (205). The movable mold (1) is also provided with a casting end (103), which is suitable for communicating with all the lower mold cavities (205).

2. The automobile cylinder block mold according to claim 1, characterized in that: The cooling pipe (3) comprises a lower folded pipe (303), one end of the lower folded pipe (303) is a water inlet end (301), and the other end is bent upward and connected to an upper folded pipe (304), the other end of the upper folded pipe (304) is bent downward and connected to a middle folded pipe (305), and the other end of the middle folded pipe (305) is a water discharge end (302).

3. The automobile cylinder block mold according to claim 2, characterized in that: The outer side surface of the movable mold (1) is provided with an inlet (203) and an outlet (204) which pass through the drainage tube cavity (202); the water inlet end (301) extends to the outside of the fixed mold (2) through the inlet (203); and the water discharge end (302) extends to the outside of the fixed mold (2) through the outlet (204).

4. The automobile cylinder block mold according to claim 3, characterized in that: The inner bottom surface of the lower mold cavity (205) is the upper surface of the heat-insulating bottom plate (201).

5. The automobile cylinder block mold according to claim 4, characterized in that: There are four groups of combinations of the inner module (101) and the lower mold cavity (205), and the four groups of the inner module (101) and the lower mold cavity (205) are arranged equidistantly around the geometric center of the movable mold (1).

6. The automobile cylinder block mold according to claim 1, characterized in that: A runner (104) is provided on the lower surface of the movable mold (1), and the runner (104) extends toward the inner mold section (101). The runner (104) is suitable for being connected to the casting end (103) and the lower mold cavity (205) at the same time.

7. The automobile cylinder block mold according to any one of claims 1 to 6, characterized in that: The upper surface of the movable mold (1) is fixedly connected to a guide rod (206), and the movable mold (1) is provided with a guide hole (102) penetrating the upper and lower surfaces, which is suitable for cooperating with the guide rod (206) to form a sliding pair.

8. The automobile cylinder block mold according to claim 7, characterized in that: The upper end of the guide rod (206) passes through the guide hole (102) and is fixedly connected to a limiting ring (207).

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