Aluminum alloy flywheel housing profiling tool

Abstract

An aluminum alloy flywheel housing profiling tool comprises a template and hydraulic equipment. The hydraulic equipment comprises a hydraulic equipment pressure plate located at the top for applying pressure and a hydraulic equipment bottom plate located at the bottom. A support seat is provided under the template, and the support seat is placed on the hydraulic equipment bottom plate. The template is placed in the inner cavity of the flywheel housing blank to be profiling. The template is provided with a mold cavity adapted to the middle part of the inner cavity of the flywheel housing blank to be profiling. The mold cavity side is provided with two or more profiling mold cavities for profiling the deformed lower bosses next to the center hole of the flywheel housing. A pad working in conjunction with the hydraulic equipment pressure plate is placed on the gear chamber surface of the flywheel housing and covers each profiling mold cavity. The present invention solves the problem of local deformation of the aluminum alloy flywheel housing during the casting process, provides a rescue measure for the casting production process, meets quality and technical requirements, and effectively reduces production costs.

Description

Technical Field

[0001] The invention relates to the field of aluminum alloy casting blank correction, and is mainly used for correction of the aluminum alloy metal mold casting blank after deformation during the casting production process. Background Art

[0002] The automotive industry has experienced rapid growth in recent years. With the continuous improvement of people's living standards, people's demand and requirements for automobiles are increasing, and the automotive industry remains a promising industry. Automotive parts, such as engine flywheel housings, are cast using aluminum alloy metal molds to achieve lightweight flywheel housings. During the casting process, the thin-walled flywheel housing, which is a shell-like part, can cause deformation of the inner cavity of the flywheel housing blank during mold opening and removal, failing to meet the part's shape and processing dimensions. This deformation increases the coaxiality error between the transmission's first shaft and the crankshaft, exacerbating vibration and wear of related components, leading to loosening of the connection between the transmission and the flywheel housing and premature automatic shifting. Correcting the deformed flywheel housing blank to obtain a qualified blank is then performed through machining to ensure good stability and sealing during operation. Summary of the Invention

[0003] The purpose of the present invention is to solve the problem of local deformation of non-ferrous cast aluminum alloy flywheel housing blanks and provide an aluminum alloy flywheel housing correction tool to achieve local deformation reduction of the aluminum alloy flywheel housing, provide a rescue measure for the casting production process, meet quality technical requirements, and effectively reduce production costs.

[0004] The technical solution of the present invention is: it includes a template and a hydraulic equipment, the hydraulic equipment includes a hydraulic equipment pressure plate located at the upper part for applying pressure, and a hydraulic equipment base plate located at the lower part. A support seat is provided under the template, and the support seat is placed on the hydraulic equipment base plate. The template is placed on the inner cavity of the flywheel housing blank to be shaped. The template is provided with a mold cavity that is adapted to the middle part of the inner cavity of the flywheel housing blank to be shaped. The side of the mold cavity is composed of two or more shaping mold cavities for shaping the deformed lower bosses next to the center hole of the flywheel housing. A pad that cooperates with the hydraulic equipment pressure plate is placed on the gear chamber surface of the flywheel housing and covers each shaping mold cavity.

[0005] The support seat includes a support plate 1 and a support plate 2 located on both sides, and a support plate 3 vertically connected between the support plate 1 and the support plate 2.

[0006] A flat plate is provided below the support seat, and the support seat is vertically placed on the flat plate; the flat plate is placed on the bottom plate of the hydraulic equipment, and the flat plate is parallel to the bottom plate of the hydraulic equipment.

[0007] The template is parallel to the hydraulic equipment pressure plate.

[0008] The middle part of the flywheel housing blank to be calibrated is the flywheel housing center hole, and there are multiple vertically arranged upper bosses on the gear chamber surface of the flywheel housing blank to be calibrated. The inner cavity of the flywheel housing blank to be calibrated has multiple vertically arranged lower bosses corresponding to each upper boss one by one, and the inner cavity of the flywheel housing blank to be calibrated corresponding to each upper boss extends downward along the length direction of the upper boss to form a lower boss.

[0009] There are two shaping cavities, namely cavity one and cavity two, which are placed on both sides of the center hole of the flywheel housing.

[0010] The present invention belongs to the technical field of post-processing of nonferrous castings, relates to the scope of profiling of nonferrous casting blanks, and is mainly used for profiling of flywheel housing blanks of nonferrous aluminum alloy castings. The present invention solves the problem of local deformation of aluminum alloy flywheel housings during the casting process, provides a rescue measure for the casting production process, meets quality and technical requirements, and effectively reduces production costs. On the one hand, the structure of the flywheel housing is irregular, and the clamping forces generated at various parts between the flywheel housing and the mold are inconsistent; on the other hand, due to the limitations of the flywheel housing product structure and installation space position, there are few ribs around the lower boss near the center hole of the flywheel housing, and the casting is demolded asynchronously during the mold opening and part removal process, resulting in concave deformation around the lower boss near the center hole of the flywheel housing in the inner cavity of the flywheel housing blank. The present invention utilizes the template on the profiling tooling to align the deformed part of the inner cavity of the aluminum alloy flywheel housing blank with the template position, and then applies pressure through the hydraulic equipment. The hydraulic equipment pressure plate transmits pressure to achieve local deformation reset of the aluminum alloy flywheel housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the template;

[0012] Figure 2 It is a schematic diagram of the connection between the template and the support seat;

[0013] Figure 3 It is a usage state diagram of the present invention;

[0014] In the figure, 1. template, 2. mold cavity, 3. mold cavity one, 4. mold cavity two, 5. support plate one, 6. support plate three, 7. support plate two, 8. flat plate, 9. hydraulic equipment bottom plate, 10. hydraulic equipment pressure plate, 11. flywheel housing blank to be calibrated, 12. pad. DETAILED DESCRIPTION

[0015] Figure 1 In the figure, a mold cavity 2 is provided on the template 1. On both sides of the mold cavity 2, mold cavity 1 3 and mold cavity 2 4 are provided according to the deformed lower boss shape of the inner cavity of the flywheel housing blank 11 to be corrected. The template 1 is on the support base, and the template 1 is connected to the support base.

[0016] Figure 2 、 3In the figure, a hydraulic equipment pressure plate 10 is provided on the template 1, and the template 1 is parallel to the hydraulic equipment pressure plate 10. A flywheel housing blank 11 to be calibrated is placed on the template 1, and a pad 12 is provided on the deformed part of the flywheel housing blank 11 to be calibrated. A support seat is provided below the template 1, and the support seat is composed of support plate 1 5, support plate 3 6, and support plate 2 7. The three support plates 1 5, 3 6, and 2 7 are connected in an H shape. A flat plate 8 is provided below the support seat, and the support seat is vertically placed on the flat plate 8; below the flat plate 8 is the hydraulic equipment bottom plate 9, and the flat plate 8 is parallel to the hydraulic equipment bottom plate 9 and placed on the hydraulic equipment bottom plate 9.

[0017] During use, the hydraulic equipment is turned on, and the hydraulic equipment pressing plate 10 moves downward. The hydraulic equipment pressing plate 10 applies pressure to the deformed flywheel housing 11 through the pad 12, so that the locally deformed part of the flywheel housing blank can be shaped under the shaping and resetting action of the flywheel housing center hole cavity 2, cavity 1 3, and cavity 2 4 set on the template 1. After the shaping is completed, the hydraulic equipment is turned off, and the hydraulic equipment pressing plate 10 moves upward to take out the flywheel housing blank that meets the part shape and processing size requirements after shaping.

Claims

1. A method for local shaping of an aluminum alloy flywheel housing, characterized by: An aluminum alloy flywheel shell shaping tool is used, and the aluminum alloy flywheel shell shaping tool includes a template (1) and a hydraulic device. The hydraulic device includes a hydraulic device pressure plate (10) located at the upper part for applying pressure and a hydraulic device bottom plate (9) located at the lower part. A support seat is provided under the template (1), and the support seat is placed on the hydraulic device bottom plate (9). The template (1) is placed in the inner cavity of a flywheel shell blank (11) to be shaped. A mold cavity (2) adapted to the middle part of the inner cavity of the flywheel shell blank (11) to be shaped is provided on the template (1). The side of the mold cavity (2) is two or more shaping mold cavities for shaping each deformed lower boss next to the center hole of the flywheel shell. A pad (12) working in conjunction with the hydraulic device pressure plate (10) is placed on the gear chamber surface of the flywheel shell and covers each shaping mold cavity. The middle portion of the flywheel housing blank (11) to be calibrated is a flywheel housing center hole, a plurality of vertically arranged upper bosses are provided on the gear chamber surface of the flywheel housing blank (11), a plurality of vertically arranged lower bosses corresponding to the upper bosses are provided in the inner cavity of the flywheel housing blank (11), and the inner cavity of the flywheel housing blank (11) to be calibrated corresponds to the upper bosses and extends downward along the length direction of the upper bosses to form lower bosses; There are two mold cavities for the correction, namely mold cavity one (3) and mold cavity two (4), and mold cavity one (3) and mold cavity two (4) are placed on both sides of the center hole of the flywheel housing; When in use, the hydraulic device is turned on, the hydraulic device pressing plate (10) moves downward, and the hydraulic device pressing plate (10) applies pressure to the deformed flywheel housing (11) through the pad (12), so that the locally deformed part of the flywheel housing blank is corrected under the shaping and resetting action of the flywheel housing center hole mold cavity (2), mold cavity 1 (3), and mold cavity 2 (4) set on the template (1). After the correction is completed, the hydraulic device is turned off, the hydraulic device pressing plate (10) moves upward, and the flywheel housing blank that meets the part shape and processing size requirements after correction is taken out.

2. The method for local shaping of an aluminum alloy flywheel housing according to claim 1, characterized in that: The support seat comprises a support plate 1 (5) and a support plate 2 (7) located on both sides, and a support plate 3 (6) vertically connected between the support plate 1 (5) and the support plate 2 (7).

3. The method for local shaping of an aluminum alloy flywheel housing according to claim 1, characterized in that: A flat plate (8) is provided below the support seat, and the support seat is vertically placed on the flat plate (8); the flat plate (8) is placed on the hydraulic equipment bottom plate (9), and the flat plate (8) is parallel to the hydraulic equipment bottom plate (9).

4. The method for local shaping of an aluminum alloy flywheel housing according to claim 1, characterized in that: The template (1) is parallel to the hydraulic equipment pressing plate (10).

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