Deep drawing die for bearing seat

Abstract

A deep drawing die for a bearing seat relates to the technical field of composite dies and comprises an upper die assembly and a lower die assembly, the upper die assembly comprises a female die and a top plate, a first through mounting hole is formed in the female die in the axial direction of the female die, and the top plate is embedded in the first mounting hole in a sliding mode; the lower die assembly comprises a male die and a positioning plate, a second through mounting hole is formed in the positioning plate in the axial direction of the positioning plate, and the male die is embedded in the second mounting hole in a sliding mode; when the upper die assembly and the lower die assembly are assembled, the male die is inserted into the first mounting hole, and a material containing gap is formed between the outer wall of the male die and the inner wall of the first mounting hole. And in the downward pressing process of the die, the male die jacks the middle of the metal sheet into the first mounting hole, and deep drawing forming is completed. In the process, the positioning plate and the female die can continuously apply pressure to the metal sheet, and the stability of the metal sheet is kept. The deep drawing die is novel in structure, deep drawing operation can be rapidly and accurately completed, and the product quality and the production efficiency are improved.

Description

A deep drawing die for bearing housings Technical Field

[0001] This utility model relates to the field of composite mold technology, and more specifically, to a deep drawing mold for bearing housings. Background Technology

[0002] Bearing housings are core components in mechanical systems used to fix and support bearings, and their design and selection directly affect the operational stability and lifespan of the equipment. Among bearing housings, there is a type resembling a dome-shaped cap, as shown in Figure 1. Its centrally protruding cylindrical portion is used to fix the bearing and provide better sealing performance. This type of bearing housing is typically manufactured using deep drawing, but existing deep drawing dies suffer from poor machining accuracy and low efficiency. Summary of the Invention

[0003] The purpose of this invention is to provide a deep drawing die for bearing housings, which has a novel structure and can quickly and accurately complete deep drawing operations, thereby improving product quality and production efficiency.

[0004] The embodiments of this utility model are implemented as follows:

[0005] A deep drawing die for a bearing housing includes an upper die assembly and a lower die assembly. The upper die assembly includes a die cavity and a top plate. The die cavity has a through first mounting hole along its axial direction, and the top plate is slidably fitted into the first mounting hole. The lower die assembly includes a punch and a positioning plate. The positioning plate has a through second mounting hole along its axial direction, and the punch is slidably fitted into the second mounting hole. When the upper die assembly and the lower die assembly are closed, the punch is inserted into the first mounting hole, and a material-accommodating gap is formed between the outer wall of the punch and the inner wall of the first mounting hole.

[0006] Furthermore, in other preferred embodiments of this utility model, the bottom edge of the first mounting hole and the outer edge of the top of the punch are both provided with rounded chamfers.

[0007] Furthermore, in other preferred embodiments of this utility model, the diameter of the top plate is equivalent to the inner diameter of the first mounting hole.

[0008] Furthermore, in other preferred embodiments of this utility model, the upper mold assembly further includes an upper template, a mold handle, and an upper pad. The upper template and the mold handle are coaxially arranged, and the upper pad is disposed at the bottom of the upper template. A first limiting groove is provided in the middle of the upper pad, the diameter of which is larger than the diameter of the first mounting hole. A limiting plate is provided on the top of the top plate, and the limiting plate is slidably embedded in the first limiting groove. A push rod is provided on the top of the limiting plate, and the push rod passes through the mold handle and is connected to the driving device. The upper pad, the die, and the upper template are connected by threaded parts.

[0009] Furthermore, in other preferred embodiments of this utility model, the lower mold assembly includes a lower template and a lower fixing plate, with the lower fixing plate disposed on the top of the lower template; the bottom of the punch is provided with an annular limiting block, and the bottom of the lower fixing plate is provided with a second limiting groove matching the limiting block; the lower fixing plate is connected to the lower template by a threaded component, and presses down the limiting block.

[0010] Furthermore, in other preferred embodiments of this utility model, a discharge rubber ring is provided on the top of the lower fixing plate, and the discharge rubber ring surrounds the punch; the top of the discharge rubber ring is connected to the positioning plate.

[0011] Furthermore, in other preferred embodiments of this utility model, the top of the positioning plate is recessed downward to form a positioning groove.

[0012] Furthermore, in other preferred embodiments of this utility model, the lower template has guide posts arranged in the vertical direction, and the upper template is provided with guide sleeves that slide in cooperation with the guide posts.

[0013] The beneficial effects of this utility model embodiment are:

[0014] This utility model provides a deep drawing die for a bearing housing, comprising an upper die assembly and a lower die assembly. The upper die assembly includes a die cavity and a top plate. The die cavity has a through-hole in its axial direction, and the top plate is slidably fitted into the first mounting hole. The lower die assembly includes a punch and a positioning plate. The positioning plate has a through-hole in its axial direction, and the punch is slidably fitted into the second mounting hole. When the upper and lower die assemblies are closed, the punch is inserted into the first mounting hole, and a material-accommodating gap is formed between the outer wall of the punch and the inner wall of the first mounting hole. During the die pressing process, the punch pushes the middle part of the metal sheet into the first mounting hole, completing the deep drawing. During this process, the positioning plate and the die cavity can continuously apply pressure to the metal sheet to maintain its stability. This deep drawing die has a novel structure, can quickly and accurately complete the deep drawing operation, and improve product quality and production efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 is a cross-sectional view of the bearing housing provided in an embodiment of this utility model;

[0017] Figure 2 is a cross-sectional view of a deep drawing die for a bearing housing provided in an embodiment of the present invention;

[0018] Figure 3 is a cross-sectional view of the upper die assembly of a deep drawing die for a bearing housing provided in an embodiment of the present invention;

[0019] Figure 4 is a cross-sectional view of a lower die assembly for a deep drawing die for a bearing housing provided in an embodiment of the present invention.

[0020] Icons: 100 - Deep drawing die; 110 - Upper die assembly; 111 - Die cavity; 1111 - First mounting hole; 112 - Top plate; 1121 - Limiting plate; 1122 - Ejector pin; 113 - Upper template; 114 - Upper backing plate; 1141 - First limiting groove; 115 - Die shank; 116 - Guide sleeve; 120 - Lower die assembly; 121 - Punch; 122 - Positioning plate; 1221 - Positioning groove; 123 - Lower template; 124 - Lower fixing plate; 125 - Ejector rubber ring; 126 - Guide post; 130 - Positioning pin. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0025] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. Examples

[0026] This embodiment provides a deep drawing die 100 for bearing housings, as shown in FIG2, which includes an upper die assembly 110 and a lower die assembly 120.

[0027] As shown in Figures 3 and 4, the upper mold assembly 110 includes a die 111 and a top plate 112. The die 111 has a through first mounting hole 1111 along its axial direction, and the top plate 112 is slidably fitted into the first mounting hole 1111. The lower mold assembly 120 includes a punch 121 and a positioning plate 122. The positioning plate 122 has a through second mounting hole along its axial direction, and the punch 121 is slidably fitted into the second mounting hole. When the upper mold assembly 110 and the lower mold assembly 120 are closed, the punch 121 is inserted into the first mounting hole 1111, and a material-accommodating gap is formed between the outer wall of the punch 121 and the inner wall of the first mounting hole 1111. During processing, the metal sheet is placed on the positioning plate 122. During the die pressing process, the bottom of the die 111 first contacts the metal sheet, forming a stable clamping effect on the metal sheet together with the positioning plate 122. As the pressure continues to decrease, the punch 121 pushes the center of the metal sheet into the first mounting hole 1111, completing the deep drawing process.

[0028] Furthermore, the bottom edge of the first mounting hole 1111 and the outer edge of the top of the punch 121 are both provided with rounded chamfers. This ensures that the machined parts form a chamfered transition at the bending position, preventing stress cracking.

[0029] As shown in Figures 2 and 3, the upper mold assembly 110 also includes an upper template 113, a mold handle 115, and an upper pad 114. The upper template 113 and the mold handle 115 are coaxially arranged, and the upper pad 114 is located at the bottom of the upper template 113. A first limiting groove 1141 is provided in the middle of the upper pad 114, and the diameter of the first limiting groove 1141 is larger than the diameter of the first mounting hole 1111. A limiting plate 1121 is provided on the top of the top plate 112, and the limiting plate 1121 is slidably embedded in the first limiting groove 1141. A push rod 1122 is provided on the top of the limiting plate 1121, and the push rod 1122 passes through the mold handle 115 and is connected to the driving device. The diameter of the top plate 112 is approximately the same as the inner diameter of the first mounting hole 1111. The first limiting groove 1141 restricts the range of motion of the limiting plate 1121. When the limiting plate 1121 moves to its uppermost position, the punch 121 just extends into the first mounting hole 1111 to reach its maximum stroke. At this time, the bottom of the top plate 112 provides support for the top of the part, facilitating the extrusion molding of the punch 121. After molding, driven by the drive device, the top plate 112 moves downward to eject the molded part from the first mounting hole 1111.

[0030] Furthermore, the upper backing plate 114, the die cavity 111, and the upper template 113 are connected by threaded components. Specifically, the die cavity 111 has four threaded holes along its axial direction, which are evenly distributed around the axis of the die cavity 111 for connection with the upper backing plate 114 and the upper template 113. In addition, the die cavity 111 also has two pin holes along its axial direction, which can be precisely positioned with the upper backing plate 114 and the upper template 113 by positioning pins 130 to maintain the coaxiality of the upper backing plate 114, the die cavity 111, and the upper template 113.

[0031] As shown in Figures 2 and 4, the lower mold assembly 120 includes a lower template 123 and a lower fixing plate 124, with the lower fixing plate 124 positioned on top of the lower template 123. A circular limiting block is provided at the bottom of the punch 121, and a second limiting groove matching the limiting block is provided at the bottom of the lower fixing plate 124. The lower fixing plate 124 is connected to the lower template 123 via a threaded connection, which presses down the limiting block. This structure allows for a detachable connection of the punch 121, facilitating maintenance and replacement.

[0032] Similarly, the lower fixing plate 124 has four threaded holes along its axial direction, which are evenly distributed around the axis of the lower fixing plate 124 for connection with the lower template 123. In addition, the lower fixing plate 124 also has two pin holes along its axial direction, which can be precisely positioned with the lower template 123 by the positioning pins 130 to maintain the coaxiality of the lower template 123 and the lower fixing plate 124.

[0033] Furthermore, a stripper rubber ring 125 is provided on the top of the lower fixing plate 124, and the stripper rubber ring 125 is arranged around the punch 121; the top of the stripper rubber ring 125 is connected to the positioning plate 122. During the pressing down of the upper die assembly 110, the bottom of the die 111 contacts the metal sheet. As the pressing continues, the stripper rubber ring 125 is compressed, continuously applying pressure to the metal sheet to maintain the stability of the metal sheet.

[0034] As shown in Figure 4, the top of the positioning plate 122 is recessed downward to form a positioning groove 1221. The positioning groove 1221 is machined into an annular shape, and the metal sheet is machined into a disk of the same shape. The positioning groove 1221 can restrict the position of the disk, thereby ensuring that the punch 121 can be lifted from the center position of the disk, further improving the machining accuracy.

[0035] Furthermore, as shown in Figure 1, the lower mold plate 123 has guide posts 126 arranged vertically, and the upper mold plate 113 is provided with guide sleeves 116 that slide with the guide posts 126. The cooperation between the guide posts 126 and the guide sleeves 116 can ensure the accuracy of mold closing and improve the quality of deep drawing operations.

[0036] In summary, this utility model provides a deep drawing die 100 for bearing housings, comprising an upper die assembly 110 and a lower die assembly 120. The upper die assembly 110 includes a die cavity 111 and a top plate 112. The die cavity 111 has a through first mounting hole 1111 along its axial direction, and the top plate 112 is slidably embedded in the first mounting hole 1111. The lower die assembly 120 includes a punch 121 and a positioning plate 122. The positioning plate 122 has a through second mounting hole along its axial direction, and the punch 121 is slidably embedded in the second mounting hole. When the upper die assembly 110 and the lower die assembly 120 are closed, the punch 121 is inserted into the first mounting hole 1111, and a material-accommodating gap is formed between the outer wall of the punch 121 and the inner wall of the first mounting hole 1111. During the die pressing process, the punch 121 pushes the middle part of the metal sheet into the first mounting hole 1111, completing the deep drawing process. During this process, the positioning plate 122 and the die 111 can continuously apply pressure to the metal sheet, maintaining its stability. This novel drawing die 100 structure enables rapid and precise completion of the drawing operation, improving product quality and production efficiency.

[0037] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A deep drawing die for a bearing housing, characterized in that, The device includes an upper mold assembly and a lower mold assembly. The upper mold assembly includes a die and a top plate. The die has a through first mounting hole along its axial direction, and the top plate is slidably fitted into the first mounting hole. The lower mold assembly includes a punch and a positioning plate. The positioning plate has a through second mounting hole along its axial direction, and the punch is slidably fitted into the second mounting hole. When the upper mold assembly and the lower mold assembly are closed, the punch is inserted into the first mounting hole, and a material-accommodating gap is formed between the outer wall of the punch and the inner wall of the first mounting hole.

2. The deep drawing die for bearing housing according to claim 1, characterized in that, Both the bottom edge of the first mounting hole and the outer edge of the top of the punch are provided with rounded chamfers.

3. The deep drawing die for bearing housing according to claim 2, characterized in that, The diameter of the top plate is approximately equal to the inner diameter of the first mounting hole.

4. The deep drawing die for bearing housing according to claim 3, characterized in that, The upper mold assembly further includes an upper template, a mold handle, and an upper backing plate. The upper template and the mold handle are coaxially arranged, and the upper backing plate is disposed at the bottom of the upper template. A first limiting groove is provided in the middle of the upper backing plate, and the diameter of the first limiting groove is larger than the diameter of the first mounting hole. A limiting plate is provided on the top of the top plate, and the limiting plate is slidably embedded in the first limiting groove. A push rod is provided on the top of the limiting plate, and the push rod passes through the mold handle and is connected to the driving device. The upper backing plate, the die, and the upper template are connected by threaded parts.

5. The deep drawing die for bearing housing according to claim 4, characterized in that, The lower mold assembly includes a lower template and a lower fixing plate. The lower fixing plate is disposed on the top of the lower template. The bottom of the punch is provided with an annular limiting block. The bottom of the lower fixing plate is provided with a second limiting groove that matches the limiting block. The lower fixing plate is connected to the lower template by a threaded component and presses down the limiting block.

6. The deep drawing die for a bearing housing according to claim 5, characterized in that, The top of the lower fixing plate is provided with a discharge rubber ring, which surrounds the punch; the top of the discharge rubber ring is connected to the positioning plate.

7. The deep drawing die for a bearing housing according to claim 6, characterized in that, The top of the positioning plate is recessed downwards to form a positioning groove.

8. The deep drawing die for a bearing housing according to claim 7, characterized in that, The lower template has guide posts arranged in a vertical direction, and the upper template has guide sleeves that slide in cooperation with the guide posts.

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