A positioning and locking mechanism for high-precision cylinder head die

Abstract

The application discloses a positioning and locking mechanism of a high-precision cylinder cover mold, belongs to the technical field of mold installation auxiliary devices, and aims to provide a positioning and locking mechanism of a high-precision cylinder cover mold which can be pressed in multiple independent directions, comprising a configuration frame, the main body of the configuration frame is a rectangular frame, each side of the rectangular frame is rotationally connected with a force applying arm, a hydraulic cylinder is movably connected between the force applying arm and the rectangular frame, the hydraulic cylinder is suitable for driving the force applying arm to apply a relative extrusion force to different parts of the cylinder cover mold, the lower surface of the rectangular frame is provided with a positioning sleeve, the force applying arm comprises a swing plate, the surface of the swing plate is provided with a middle hinge frame, and the upper surface of the side of the rectangular frame is provided with an outer hinge frame. According to the application, multiple groups of force applying arms and hydraulic cylinders are arranged on the configuration frame, so that the outer side of the mold can obtain multiple independent directional pressing effects, the locking efficiency is improved, the force deviation is less likely to occur, the probability of damage to the parts is lower, and the locking precision is higher.

Description

Technical Field

[0001] This application relates to the field of mold installation auxiliary device technology, and in particular to a positioning and locking mechanism for a high-precision cylinder head mold. Background Technology

[0002] Molds are typically composed of multiple parts, all of which need to fit together to form a complete mold body. However, during the assembly process, due to the friction between the parts, it is difficult to achieve the designed fitting accuracy. The traditional method requires assembly workers to repeatedly tap and check the fitting gaps with a rubber hammer, which is very troublesome. Existing technology also uses machines to perform pressing and locking operations, but the pressing machine can usually only apply pressure in one direction. Once the working surface is tilted, the parts are easily scratched due to incorrect fitting direction, resulting in a decrease in the accuracy of the mold structure. Utility Model Content

[0003] The purpose of this application is to provide a positioning and locking mechanism for a high-precision cylinder head mold that can be independently pressed in multiple directions.

[0004] To achieve the above objectives, this application provides a positioning and locking mechanism for a high-precision cylinder head mold: it includes a mounting frame, the main body of which is a rectangular frame, each side of which is rotatably connected to a force-applying arm, and a hydraulic cylinder is movably connected between the force-applying arm and the rectangular frame. The hydraulic cylinder is adapted to drive the force-applying arm to apply relative compressive force to different parts of the cylinder head mold. The lower surface of the rectangular frame has a positioning sleeve, which is adapted to engage with the countersunk hole on the cylinder head mold to achieve pre-positioning before locking, thereby ensuring the accurate position of the force-applying arm.

[0005] As a preferred embodiment, the lever arm includes a swing plate, the surface of which has a central hinge frame, and the upper side surface of the rectangular frame has an outer hinge frame, which is adapted to be rotatably connected to the central hinge frame via a hinge shaft to form a lever structure.

[0006] As a preferred embodiment, the inner side of the rectangular frame has an inner extension plate, the upper surface of the inner extension plate has an inner hinge frame, and the cylinder end of the hydraulic cylinder is fixedly connected to a lower hinge plate, which is suitable for rotatably connecting with the inner hinge frame through a hinge shaft, thereby restricting the degree of freedom of movement of the lower end of the hydraulic cylinder.

[0007] As a preferred embodiment, the upper end of the swing plate has an upper folding plate, the lower surface of the upper folding plate has a movable hinge frame, and the end of the telescopic rod of the hydraulic cylinder is fixedly connected to the upper hinge plate, which is suitable for rotatably connecting with the movable hinge frame through a hinge shaft. When the hydraulic cylinder drives the swing plate to rotate, the hydraulic cylinder itself has sufficient angle self-adaptation capability.

[0008] As a preferred embodiment, the lower end of the swing plate has a pressing plate, which is always inclined and suitable for direct contact with the cylinder head mold, thereby applying a pressing and locking force to the mold body.

[0009] As a preferred embodiment, the upper surface of the rectangular frame is provided with a material discharge slide that connects to the lower end face of the positioning sleeve, which is suitable for the bolts of the mold to pass through.

[0010] As a preferred embodiment, a traction arm is also fixedly connected to the rectangular frame to obtain the traction force of the hoisting equipment.

[0011] As a preferred embodiment, the upper end of the traction arm extends horizontally and is provided with a connection hole, which facilitates the connection of the connector or hook to the hoisting equipment.

[0012] Compared with the prior art, the beneficial effects of this application are as follows: (1) By setting multiple sets of force arms and hydraulic cylinders on the configuration frame, the outer side of the mold body can obtain multiple independent directions of pressing action, which not only improves the locking efficiency, but also makes it less likely to cause force bias, reduces the probability of damage to the parts, and increases the locking accuracy. (2) By designing a positioning sleeve structure below the rectangular frame, it can be inserted into the countersunk hole on the upper part of the mold to achieve pre-positioning before locking, further ensuring the accurate position of the force arm, thus preparing for high-precision pressing and locking operation. Attached Figure Description

[0013] Figure 1 This is a first three-dimensional structural diagram of the positioning and locking mechanism of the high-precision cylinder head mold.

[0014] Figure 2 This is a schematic diagram of the second three-dimensional structure of the positioning and locking mechanism of the high-precision cylinder head mold.

[0015] Figure 3 This is a three-dimensional structural diagram of the mounting frame for the positioning and locking mechanism of the high-precision cylinder head mold.

[0016] Figure 4 This is a three-dimensional structural diagram showing the connection between the hydraulic cylinder and the lever arm in the positioning and locking mechanism of the high-precision cylinder head mold.

[0017] Figure 5 This is a three-dimensional structural diagram of the lever arm of the positioning and locking mechanism of the high-precision cylinder head mold.

[0018] In the diagram: 1. Configuration frame; 101. Rectangular frame; 102. Inner extension plate; 103. Inner hinge frame; 104. Outer hinge frame; 105. Positioning sleeve; 106. Material drop chute; 107. Traction arm; 108. Connecting hole; 2. Applying arm; 201. Swing plate; 202. Middle hinge frame; 203. Upper folding plate; 204. Movable hinge frame; 205. Pressing plate; 3. Hinge shaft; 4. Hydraulic cylinder; 401. Lower hinge plate; 402. Upper hinge plate. Detailed Implementation

[0019] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0020] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0021] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0022] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0023] like Figure 1-5The positioning and locking mechanism of the high-precision cylinder head mold shown includes a configuration frame 1. The main body of the configuration frame 1 is a rectangular frame 101. Each side of the rectangular frame 101 is rotatably connected to a force-applying arm 2. If there is only one force-applying arm 2 on a side, the force-applying arm 2 is located in the middle of the side. If there are two force-applying arms 2 on a side, the two force-applying arms 2 are symmetrical about the middle of the side. The force-applying arm 2 includes a swing plate 201. The swing plate 201 has a central hinge frame 202 facing the surface of the rectangular frame 101. The upper surface of the side of the rectangular frame 101 has an outer hinge frame 104, which needs to be rotatably connected to the central hinge frame 202 through a hinge shaft 3 to form a lever structure.

[0024] A hydraulic cylinder 4 is movably connected between the lever arm 2 and the rectangular frame 101, which can generate a large thrust. The inner side of the rectangular frame 101 has an inner extension plate 102, and the upper surface of the inner extension plate 102 has an inner hinge frame 103. The cylinder end of the hydraulic cylinder 4 is fixedly connected to a lower hinge plate 401, which needs to be rotatably connected to the inner hinge frame 103 through a hinge shaft 3. The upper end of the swing plate 201 has an upper folding plate 203, and the lower surface of the upper folding plate 203 has a movable hinge frame 204. The end of the telescopic rod of the hydraulic cylinder 4 is fixedly connected to an upper hinge plate 402, which needs to be rotatably connected to the movable hinge frame 204 through a hinge shaft 3. When the hydraulic cylinder 4 extends or retracts, the angle of the lever arm 2 will change accordingly.

[0025] The hydraulic cylinder 4 is adapted to drive the lever arm 2 to apply relative compressive force to different parts of the cylinder head mold. The lower end of the swing plate 201 has a pressing plate 205. The pressing plate 205 is always inclined, and the lower end of the pressing plate 205 will always be closer to the outer side of the cylinder head mold than the lower end of the swing plate 201. The pressing plate 205 is used to directly contact the cylinder head mold, thereby applying an upward component force to the lower mold part, so that the upper mold part is pressed together with the lower mold part.

[0026] The lower surface of the rectangular frame 101 has a positioning sleeve 105 for engaging with the countersunk hole on the cylinder head mold, thereby helping all the force-applying arms 2 to be in the correct position. The upper surface of the rectangular frame 101 has a material discharge slide 106 that connects to the lower end face of the positioning sleeve 105, allowing the bolts of the cylinder head mold to pass through.

[0027] A traction arm 107 is also fixedly connected to the rectangular frame 101. The upper end of the traction arm 107 extends horizontally and has a connection hole 108 for connecting parts or hooks to pass through so that the traction arm 107 can be connected to the hoisting equipment for easy transfer of the locking mechanism.

[0028] Working principle: The cylinder head mold using this locking mechanism has a stacked structure, and the outer side of the lower mold part needs to have an indented groove structure. In use, the locking mechanism is transported by hoisting equipment to the top of the stacked but not locked cylinder head molds. The hoisting equipment lowers the locking mechanism, and the positioning sleeve 105 aligns with the countersunk hole on the upper part of the mold and slides in to achieve positioning before locking, until the rectangular frame 101 contacts the upper surface of the upper mold. Then, all hydraulic cylinders 4 extend synchronously, causing the force-applying arms 2 to deflect. The pressing plates 205 at the lower ends of all force-applying arms 2 gradually approach the side of the lower mold until they are embedded in the groove structure of the lower mold. The hydraulic cylinders 4 continue to extend and retract. The pressing plate 205 will apply pressure to the retaining groove. The pressure will generate an upward component force, which will force the lower part of the mold and the upper part to overcome the frictional resistance and move closer together. When the output pressure of the hydraulic cylinder 4 reaches the set value, the upper and lower parts of the mold will be fully locked. Since the inner diameter of the material discharge channel is larger than the inner diameter of the bolt hole of the mold, and the end cap of the bolt is smaller than the inner diameter of the material discharge slide 106 but larger than the inner diameter of the bolt hole, the bolt can be inserted from the upper end of the material discharge slide 106 and tightened with a tool. The bolt can lock the upper and lower parts of the mold together. In this way, even if the hydraulic cylinder 4 is depressurized and the locking mechanism releases the cylinder head mold, it can still maintain the locked state.

[0029] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A positioning and locking mechanism for a high-precision cylinder head mold, characterized in that: The system includes a configuration frame (1), the main body of which is a rectangular frame (101). Each side of the rectangular frame (101) is rotatably connected to a force-applying arm (2). A hydraulic cylinder (4) is movably connected between the force-applying arm (2) and the rectangular frame (101). The hydraulic cylinder (4) is adapted to drive the force-applying arm (2) to apply relative extrusion force to different parts of the cylinder head mold. The lower surface of the rectangular frame (101) has a positioning sleeve (105) adapted to be inserted into the countersunk hole on the cylinder head mold.

2. The positioning and locking mechanism of the high-precision cylinder head mold as described in claim 1, characterized in that: The force-applying arm (2) includes a swing plate (201), the surface of which has a central hinge frame (202), and the upper side surface of the rectangular frame (101) has an outer hinge frame (104), which is adapted to be rotatably connected to the central hinge frame (202) via a hinge shaft (3).

3. The positioning and locking mechanism of the high-precision cylinder head mold as described in claim 2, characterized in that: The inner side of the rectangular frame (101) has an inner extension plate (102), and the upper surface of the inner extension plate (102) has an inner hinge frame (103). The cylinder end of the hydraulic cylinder (4) is fixedly connected to a lower hinge plate (401), which is suitable for rotating connection with the inner hinge frame (103) through a hinge shaft (3).

4. The positioning and locking mechanism of the high-precision cylinder head mold as described in claim 3, characterized in that: The upper end of the swing plate (201) has an upper folding plate (203), and the lower surface of the upper folding plate (203) has a movable hinge frame (204). The end of the telescopic rod of the hydraulic cylinder (4) is fixedly connected to the upper hinge plate (402), which is suitable for rotating connection with the movable hinge frame (204) through the hinge shaft (3).

5. The positioning and locking mechanism of the high-precision cylinder head mold as described in claim 4, characterized in that: The lower end of the swing plate (201) has a pressing plate (205), which is always inclined and suitable for direct contact with the cylinder head mold.

6. The positioning and locking mechanism of the high-precision cylinder head mold as described in claim 5, characterized in that: The upper surface of the rectangular frame (101) is provided with a material discharge slide (106) that connects to the lower end face of the positioning sleeve (105).

7. The positioning and locking mechanism for a high-precision cylinder head mold as described in any one of claims 1 to 6, characterized in that: A traction arm (107) is also fixedly connected to the rectangular frame (101).

8. The positioning and locking mechanism of the high-precision cylinder head mold as described in claim 7, characterized in that: The upper end of the traction arm (107) extends horizontally and has a connection hole (108).

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