A cylinder head product sand core compacting device

Abstract

A cylinder head product sand core compaction device, including sand core, one end of sand core is connected with mold body fixedly, mold body is connected with compaction mechanism fixedly, the compaction mechanism includes mounting seat, the mounting seat is connected with the right side wall of mold body fixedly, the upper end surface of mounting seat sets fixed seat, the lateral wall of fixed seat is connected with the right side wall of mold body fixedly, the right side upper end surface of mold body sets pressure head, the upper end surface of pressure head sets connecting clamping plate, connecting clamping plate is connected with pressure head through connecting bolt and is fixed, the rear end upper side of connecting clamping plate sets protrusion, the rear end upper side protrusion of connecting clamping plate is hinged with the protrusion of handle, the rear end lower side of connecting clamping plate is respectively hinged with the inboard of the axial extension arm of two connecting plates, the connecting plate is L-shaped connecting plate, the longitudinal extension arm lower end of connecting plate is connected with fixed seat fixedly, the rear end inboard of the longitudinal extension arm of two connecting plates is hinged with the lower end of connecting block, the upper end of connecting block is hinged with the front end of handle.

Description

Technical Field

[0001] This utility model relates to the field of aluminum alloy casting technology, specifically to a sand core clamping device for cylinder head products. Background Technology

[0002] With the current trend of diversified and personalized aluminum alloy product structures, the fixing of sand cores in aluminum alloy casting products has become an urgent problem to be solved. Fixing sand cores with complex structures is a complex process. Currently, the commonly used solutions are sand core-to-sand core contact positioning and mold clamping, such as... Figure 1 As shown, the sand core 4 is positioned by contact with the sand core 3, and the sand core 1 is fixed by the mold 2. This structure has the following prominent problems:

[0003] 1. The mold is subject to thermal deformation in the hot state, which affects the mold closing effect and consequently affects the fixation of the sand core;

[0004] 2. The contact and compaction of the sand core is affected by the quality of the sand core contact surface;

[0005] 3. The sand core is affected by the filling pressure of the molten aluminum.

[0006] The commonly used method of clamping and pressing the sand core with molds can easily lead to products that are not up to standard and have to be scrapped, resulting in poor product dimensional stability. Summary of the Invention

[0007] The purpose of this invention is to address the shortcomings of existing technologies by providing a sand core clamping device for cylinder head products. This device can reduce product scrap rates and improve product dimensional stability.

[0008] The purpose of this utility model is achieved by the following solution: a cylinder head product sand core pressing device, including a sand core, one end of which is connected and fixed to a mold body, the mold body is connected and fixed to a pressing mechanism, the pressing mechanism including a mounting base, the mounting base being connected and fixed to the right side wall of the mold body, a fixing seat being provided on the upper end face of the mounting base, the side wall of the fixing seat being connected and fixed to the right side wall of the mold body, a pressure head being provided on the upper right end face of the mold body, a connecting clamping plate being provided on the upper end face of the pressure head, the connecting clamping plate being connected and fixed to the pressure head by connecting bolts, a protrusion being provided on the upper rear end side of the connecting clamping plate, the protrusion on the upper rear end side of the connecting clamping plate being hinged to the protrusion of the handle, the lower rear end side of the connecting clamping plate being hinged to the inner side of the axial extension arm of two connecting plates respectively, the connecting plate being an L-shaped connecting plate, the lower end of the longitudinal extension arm of the connecting plate being connected and fixed to the fixing seat, the inner rear end side of the longitudinal extension arm of the two connecting plates being hinged to the lower end of the connecting block, and the upper end of the connecting block being hinged to the front end of the handle.

[0009] The front end of the connecting clamp is provided with a strip groove, and the connecting bolts are installed in the strip groove.

[0010] The front end of the handle and the protrusion are provided with a through groove, and the upper rear end of the connecting plate and the upper end of the connecting block are installed in the through groove and hinged to the handle.

[0011] The connecting plate and the fixing seat are fixed together by bolts.

[0012] The advantages of this utility model are: 1. The clamping device is convenient to clamp and loosen, which is convenient for mass production.

[0013] 2. Stable and reliable clamping, which can improve the dimensional accuracy of products.

[0014] 3. The structure is simple and independent, making it suitable for sand cores that are difficult to position. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure for fixing the sand core during mold closing;

[0016] Figure 2 This is a schematic diagram of the structure of this utility model;

[0017] Figure 3 This is a top view of the present invention;

[0018] Figure 4 This is a schematic diagram of the clamping mechanism. Detailed Implementation

[0019] like Figures 2 to 4 As shown, a cylinder head product sand core clamping device includes a sand core 1. One end of the sand core 1 is connected and fixed to a mold body 2. The mold body 2 is connected and fixed to a clamping mechanism. The clamping mechanism includes a mounting base 10, which is connected and fixed to the right side wall of the mold body 9. A fixing base 8 is provided on the upper end face of the mounting base 10. The side wall of the fixing base 8 is connected and fixed to the right side wall of the mold body 9. A pressure head 2 is provided on the upper right end face of the mold body 9. A connecting clamp 4 is provided on the upper end face of the pressure head 2. The connecting clamp 4 is connected and fixed to the pressure head 2 by connecting bolts 3. A strip groove is provided at the front end of the connecting clamp 4, and the connecting bolts 3 are installed in the strip groove. The upper rear end of the connecting plate 4 has a protrusion that is hinged to the protrusion of the handle 5. The lower rear end of the connecting plate 4 is hinged to the inner sides of the axial extension arms of the two connecting plates 7. The connecting plates 7 are L-shaped. The lower ends of the longitudinal extension arms of the connecting plates 7 are fixed to the fixing base 8. The inner rear ends of the longitudinal extension arms of the two connecting plates 7 are hinged to the lower ends of the connecting blocks 6. The upper ends of the connecting blocks 6 are hinged to the front ends of the handle 5. The front end of the handle 5 and the protrusion have through grooves. The upper rear end of the connecting plate 4 and the upper ends of the connecting blocks 6 are installed in the through grooves and hinged to the handle 5. The connecting plates 7 and the fixing base 8 are fixed by bolts.

[0020] The following is the working process of the clamping device:

[0021] 1. The clamping mechanism connecting plate is connected to the fixed base, and the fixed base is fixed to the part of the mold that needs to clamp the sand core, thus completing the connection between the clamping mechanism and the mold;

[0022] 2. Adjust the connecting bolts to ensure a tight connection with the pressure head;

[0023] 3. As the handle is pulled outward and downward, the handle drives the connecting plate to press the connecting clamp downward, and the connecting clamp acts on the pressure head to press the sand core tightly.

[0024] 4. The process of pulling the handle inward and upward will cause the connecting clamp and pressure head to move upward and loosen.

[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications made to the present utility model by those skilled in the art without departing from the spirit of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A cylinder head product sand core compacting device, comprising a sand core (1), one end of the sand core (1) being fixedly connected with a mold body (2), the mold body (2) being fixedly connected with a compacting mechanism, characterized in that: The pressing mechanism comprises a mounting seat (10) connected and fixed with the right side wall of a mold body (9), a fixed seat (8) arranged at the upper end surface of the mounting seat (10), a side wall of the fixed seat (8) connected and fixed with the right side wall of the mold body (9), a pressing head (2) arranged at the right side upper end surface of the mold body (9), a connecting clamping plate (4) arranged at the upper end surface of the pressing head (2), the connecting clamping plate (4) connected and fixed with the pressing head (2) through a connecting bolt (3), a protrusion arranged at the rear end upper side of the connecting clamping plate (4), the protrusion of the connecting clamping plate (4) articulated with a protrusion of a handle (5), the rear end lower side of the connecting clamping plate (4) articulated with the inner sides of the axially extending arms of two connecting plates (7) respectively, the connecting plate (7) being an L-shaped connecting plate, the longitudinally extending arm lower end of the connecting plate (7) connected and fixed with the fixed seat (8), the inner sides of the longitudinally extending arm rear ends of the two connecting plates (7) articulated with the lower end of a connecting block (6), the upper end of the connecting block (6) articulated with the front end of the handle (5).

2. The cylinder head product sand core compaction device of claim 1, wherein: The front end of the connecting clamping plate (4) is provided with a strip-shaped slot, and the connecting bolt (3) is arranged in the strip-shaped slot.

3. The cylinder head product sand core compaction device of claim 1, wherein: The front end of the handle (5) is provided with a through slot, and the rear end upper side of the connecting clamping plate (4) and the upper end of the connecting block (6) are arranged in the through slot and articulated with the handle (5).

4. The cylinder head product sand core compaction device of claim 1, wherein: The connecting plate (7) is connected and fixed with the fixed seat (8) through a bolt.

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