Composite die for spring clip

Abstract

A composite die for a spring clamp 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, a material pushing plate and a punch, the top of the female die is downwards concavely provided with a mounting groove, the bottom wall of the mounting groove is provided with a cavity, the shape of the cavity is matched with the shape of the spring clamp, and the cavity penetrates through the bottom wall of the mounting groove; the material pushing plate comprises a mounting block matched with the mounting groove, the mounting block is embedded in the mounting groove in a sliding mode, a material pushing block is downwards arranged at the bottom of the mounting block in a protruding mode, the shape of the material pushing block is matched with that of the cavity, and the material pushing block is embedded in the cavity in a sliding mode; a first matching hole is formed in the middle of the material pushing block and penetrates through the material pushing block, and the punch is embedded in the matching hole in a sliding mode. The lower die assembly comprises a convex-concave die which is matched with the cavity in shape and can be inserted into the cavity; and the top of the convex-concave die is downwards concavely provided with a second matching hole matched with the punch. The composite die can be used for one-time punch forming of the spring clamp, hole opening is completed in the middle of the spring clamp, and therefore the machining efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of composite mold technology, and more specifically, to a composite mold for spring clips. Background Technology

[0002] Spring clips are components that primarily function to fix and limit movement. One type of spring clip used in locomotive diesel engines is, for example... Figure 1 As shown, it needs to be processed into a butterfly-shaped sheet structure with a hole in the middle for bolts to pass through and fix it. In the prior art, it is usually necessary to first stamp the sheet to form a sheet, and then punch holes in the sheet. The operation steps are cumbersome and affect the processing efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a composite mold for spring clips, which has a novel structure and can complete the punching and trimming in one stamping process to form a spring clip of a specific shape, thereby improving processing efficiency.

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

[0005] A composite mold for a spring clip includes an upper mold assembly and a lower mold assembly. The upper mold assembly includes a die cavity, an ejector plate, and a punch. The top of the die cavity is recessed into a mounting groove, and the bottom wall of the mounting groove has a cavity whose shape matches the shape of the spring clip and extends through the bottom wall of the mounting groove. The ejector plate includes a mounting block that matches the mounting groove and is slidably embedded in the mounting groove. The bottom of the mounting block has a protruding ejector block whose shape matches the cavity and is slidably embedded in the cavity. A first mating hole is provided in the middle of the ejector block, and the punch is slidably embedded in the mating hole. The lower mold assembly includes a punch and a die, the shapes of which match the cavity and can be inserted into the cavity. The top of the punch and die is recessed into a second mating hole for mating with the punch.

[0006] Furthermore, in other preferred embodiments of this invention, the diameter of the punch is equivalent to the inner diameter of the second mating hole.

[0007] Furthermore, in other preferred embodiments of this utility model, the thickness of the mounting block is less than the depth of the mounting groove, and the difference between the two is less than the thickness of the pusher block.

[0008] Furthermore, in other preferred embodiments of this utility model, the upper mold assembly further includes an upper template, a mold handle, an ejector pin, an upper pad, and an upper fixing plate. The upper template and the mold handle are coaxially arranged, and the upper pad and the upper fixing plate are sequentially arranged at the bottom of the upper template. The upper template, the upper pad, and the upper fixing plate are connected by threaded parts. The mold handle and the upper pad are spaced apart, forming a cavity between the mold handle and the upper pad. The ejector pin passes through the mold handle along the axial direction of the mold handle, and a pusher plate is provided at the bottom of the ejector pin. A ejector pin is provided at the bottom of the pusher plate, and the ejector pin sequentially passes through the upper pad and the upper fixing plate and is connected to the ejector plate.

[0009] Furthermore, in other preferred embodiments of this utility model, the concave mold is disposed at the bottom of the upper fixed plate and is connected to the upper fixed plate by a threaded component.

[0010] Furthermore, in other preferred embodiments of this utility model, a disc-shaped limiting block is provided on the top of the punch, and a limiting groove matching the limiting block is provided on the top of the upper fixing plate.

[0011] Furthermore, in other preferred embodiments of this utility model, the lower mold assembly further includes a lower template, and the punch and die are connected to the lower template via threaded parts.

[0012] Furthermore, in other preferred embodiments of this utility model, the lower mold assembly further includes a lower fixing plate, which surrounds the punch and die and is connected to the lower template via a threaded component; a discharge rubber ring is provided on the top of the lower fixing plate, which surrounds the punch and die; a discharge plate is provided on the top of the discharge rubber ring, and a matching groove matching the punch and die is provided in the middle of the discharge plate.

[0013] Furthermore, in other preferred embodiments of this utility model, the bottom surface of the unloading plate is not higher than the top surface of the punch and die.

[0014] 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.

[0015] The beneficial effects of this utility model embodiment are:

[0016] This utility model provides a composite mold for a spring clip, comprising an upper mold assembly and a lower mold assembly. The upper mold assembly includes a die, a pusher plate, and a punch. The top of the die has a downwardly recessed mounting groove, and the bottom wall of the mounting groove has a cavity whose shape matches the shape of the spring clip and penetrates the bottom wall of the mounting groove. The pusher plate includes a mounting block that matches the mounting groove and is slidably embedded in the mounting groove. The bottom of the mounting block has a downwardly protruding pusher block whose shape matches the cavity and is slidably embedded in the cavity. A first mating hole is provided in the middle of the pusher block, penetrating the pusher block, and the punch is slidably embedded in the mating hole. The lower mold assembly includes a punch and a die whose shapes match the cavity and can be inserted into the cavity. The top of the punch and die has a downwardly recessed second mating hole for mating with the punch. This composite mold can stamp and form a spring clip in one operation and complete the opening in the middle of the spring clip, thereby improving processing efficiency. Attached Figure Description

[0017] 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.

[0018] Figure 1 A schematic diagram of the spring clip provided in an embodiment of this utility model;

[0019] Figure 2 A cross-sectional view of a composite mold for a spring clip provided in an embodiment of this utility model;

[0020] Figure 3 A cross-sectional view of the upper mold assembly of a composite mold for a spring clip provided in an embodiment of this utility model;

[0021] Figure 4 A cross-sectional view of the lower mold assembly of a composite mold for a spring clip provided in an embodiment of this utility model;

[0022] Figure 5 This is a schematic diagram illustrating the fit between the concave die, convex die, push plate, and stripper plate of a composite mold for spring clips provided in an embodiment of this utility model.

[0023] Icons: 100-Composite mold; 110-Upper mold assembly; 111-Die; 1111-Mounting slot; 1112-Cavity; 112-Ejector plate; 1121-Mounting block; 1122-Ejector block; 1123-First mating hole; 113-Punch; 1131-Limiting block; 114-Upper template; 115-Mold shank; 1151-Ejector pin; 1152-Ejector plate; 1153-Ejector pin; 116-Upper backing plate; 117-Upper fixing plate; 118-Clamping cavity; 119-Guide sleeve; 120-Lower mold assembly; 121-Punch and die; 1211-Second mating hole; 122-Lower template; 123-Lower fixing plate; 124-Ejector rubber ring; 125-Ejector plate; 1251-Matching groove; 126-Guide post; 200-Spring clip. Detailed Implementation

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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. Example

[0029] This embodiment provides a composite mold 100 for a spring clip 200, referring to... Figure 2 As shown, it includes an upper mold assembly 110 and a lower mold assembly 120.

[0030] Among them, such as Figure 3 and Figure 4As shown, the upper die assembly 110 includes a die cavity 111, a pusher plate 112, and a punch 113. The top of the die cavity 111 is recessed with a mounting groove 1111, and the bottom wall of the mounting groove 1111 is provided with a cavity 1112. The shape of the cavity 1112 matches the shape of the spring clip 200 and extends through the bottom wall of the mounting groove 1111. The pusher plate 112 includes a mounting block 1121 that matches the mounting groove 1111. The mounting block 1121 is slidably embedded in the mounting groove 1111, and the bottom of the mounting block 1121 is convex with a pusher. The ejector block 1122 is shaped to match the cavity 1112 and is slidably embedded within the cavity 1112. A first mating hole 1123 is provided in the center of the ejector block 1122, penetrating the ejector block 1122, and the punch 113 is slidably embedded within the mating hole. The lower die assembly 120 includes a punch and die 121, the shape of which matches the cavity 1112 and can be inserted into the cavity 1112. A second mating hole 1211 is recessed downwards at the top of the punch and die 121 for mating with the punch 113. During die closing, the lower edge of the punch 113 is lower than the bottom surface of the die 111 and will preferentially contact the metal sheet. Utilizing the shearing force between the punch 113 and the second mating hole 1211 on the punch and die 121, a hole is created in the center of the metal sheet. Secondly, as the upper mold assembly 110 continues to press down, the bottom surface of the die 111 contacts the metal sheet, and the punch and die push the metal sheet into the cavity 1112. Using the shearing force between the die 111 and the punch and die 121, the edge of the part is trimmed, and the formed part is kept in the cavity 1112.

[0031] Furthermore, the diameter of the punch 113 is approximately equal to the inner diameter of the second mating hole 1211, thereby ensuring the machining accuracy of the punching.

[0032] like Figure 3 and Figure 5 As shown, the thickness of the mounting block 1121 is less than the depth of the mounting groove 1111. When the part is squeezed into the cavity 1112, it pushes the mounting block 1121 upward until the top surface of the mounting block 1121 is flush with the top surface of the die 111. The difference between the thickness of the mounting block 1121 and the depth of the mounting groove 1111 is less than the thickness of the pusher block 1122. This design ensures that the pusher block 1122 always slides within the cavity 1112, preventing the part from entering the mounting groove 1111 and causing jamming.

[0033] Furthermore, the upper mold assembly 110 also includes an upper template 114, a mold handle 115, an ejector pin 1151, an upper pad 116, and an upper fixing plate 117. The upper template 114 and the mold handle 115 are coaxially arranged. The upper pad 116 and the upper fixing plate 117 are sequentially arranged at the bottom of the upper template 114. The upper template 114, the upper pad 116, and the upper fixing plate 117 are connected by threaded parts. The mold handle 115 and the upper pad 116 are spaced apart, forming a cavity 118 between the mold handle 115 and the upper pad 116. The ejector pin 1151 passes through the mold handle 115 along the axial direction of the mold handle 115. An ejector plate 1152 is provided at the bottom of the ejector pin 1151. An ejector pin 1153 is provided at the bottom of the ejector plate 1152. The ejector pin 1153 passes through the upper pad 116 and the upper fixing plate 117 in sequence and is connected to the push plate 112. The push rod 1151 can move downward under the drive of the drive device, and the push plate 112 can be moved up and down by the push plate 1152 and the push pin 1153, so as to push the cut spring sheet out from the cavity 1112.

[0034] like Figure 3 and Figure 5 As shown, the die 111 is located at the bottom of the upper fixed plate 117 and is connected to the upper fixed plate 117 via a threaded connection. A disc-shaped limiting block 1131 is provided on the top of the punch 113, and a limiting groove matching the limiting block 1131 is provided on the top of the upper fixed plate 117. This structure allows for the detachable connection of the punch 113, facilitating maintenance and replacement.

[0035] Furthermore, such as Figure 4 and Figure 5 As shown, the lower mold assembly 120 also includes a lower template 122, and the punch and die 121 are connected to the lower template 122 via threaded connections. The lower mold assembly 120 also includes a lower fixing plate 123, which surrounds the punch and die 121 and is connected to the lower template 122 via threaded connections. A stripper rubber ring 124 is provided on the top of the lower fixing plate 123, and the stripper rubber ring 124 surrounds the punch and die 121. A stripper plate 125 is provided on the top of the stripper rubber ring 124, and a matching groove 1251 matching the punch and die 121 is provided in the middle of the stripper plate 125. The bottom surface of the stripper plate 125 is not higher than the top surface of the punch and die 121. When the die 111 is pressed down, the stripper rubber ring 124 is compressed, and the stripper plate 125 continuously applies pressure to the metal sheet under the action of the rebound force, which plays a role in fixing it, and at the same time, a space for accommodating excess material is formed between the die 111 and the stripper plate 125.

[0036] The lower mold plate 122 has guide posts 126 arranged vertically, and the upper mold plate 114 has guide sleeves 119 that slide with the guide posts 126. The cooperation between the guide posts 126 and the guide sleeves 119 can ensure the accuracy of mold closing and improve the stamping quality.

[0037] In summary, this utility model embodiment provides a composite mold 100 for a spring clip 200, which includes an upper mold assembly 110 and a lower mold assembly 120. The upper mold assembly 110 includes a die cavity 111, a pusher plate 112, and a punch 113. The top of the die cavity 111 is recessed with a mounting groove 1111, and the bottom wall of the mounting groove 1111 is provided with a cavity 1112. The shape of the cavity 1112 matches the shape of the spring clip 200 and penetrates the bottom wall of the mounting groove 1111. The pusher plate 112 includes a mounting block 1121 that matches the mounting groove 1111, and the mounting block 1121 slides. The mounting block 1121, embedded in the mounting groove 1111, has a downwardly protruding pusher block 1122 at its bottom. The shape of the pusher block 1122 matches the cavity 1112 and is slidably embedded within it. A first mating hole 1123 is provided in the middle of the pusher block 1122, penetrating through it, and the punch 113 is slidably embedded within the mating hole. The lower die assembly 120 includes a punch and die 121 whose shape matches the cavity 1112 and can be inserted into it. The top of the punch and die 121 has a downwardly recessed second mating hole 1211 for mating with the punch 113. This composite mold 100 can stamp the spring clip 200 in one operation and complete the opening in the middle of the spring clip 200, thereby improving processing efficiency.

[0038] 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 composite mold for spring clips, characterized in that, The assembly includes an upper die assembly and a lower die assembly. The upper die assembly includes a die cavity, a push plate, and a punch. The top of the die cavity is recessed into a mounting groove, and the bottom wall of the mounting groove has a cavity whose shape matches the shape of the spring clip and extends through the bottom wall of the mounting groove. The push plate includes a mounting block that matches the mounting groove and is slidably embedded in the mounting groove. The bottom of the mounting block has a downwardly protruding push block whose shape matches the cavity and is slidably embedded in the cavity. The push block has a first mating hole in its center, which extends through the push block, and the punch is slidably embedded in the mating hole. The lower die assembly includes a punch and a die, the shapes of which match the cavity and can be inserted into the cavity. The top of the punch and die is recessed into a second mating hole for mating with the punch.

2. The composite mold for spring clips according to claim 1, characterized in that, The diameter of the punch is equivalent to the inner diameter of the second mating hole.

3. The composite mold for spring clips according to claim 2, characterized in that, The thickness of the mounting block is less than the depth of the mounting groove, and the difference between the two is less than the thickness of the pusher block.

4. The composite mold for spring clips according to claim 3, characterized in that, The upper mold assembly further includes an upper template, a mold handle, an ejector pin, an upper pad, and an upper fixing plate. The upper template and the mold handle are coaxially arranged. The upper pad and the upper fixing plate are sequentially arranged at the bottom of the upper template. The upper template, the upper pad, and the upper fixing plate are connected by threaded parts. The mold handle and the upper pad are spaced apart, forming a cavity between the mold handle and the upper pad. The ejector rod passes through the mold shank along the axial direction of the mold shank. A ejector plate is provided at the bottom of the ejector rod, and an ejector pin is provided at the bottom of the ejector plate. The ejector pin passes through the upper pad, the upper fixing plate and is connected to the push plate in sequence.

5. The composite mold for spring clips according to claim 4, characterized in that, The concave mold is located at the bottom of the upper fixed plate and is connected to the upper fixed plate by a threaded component.

6. The composite mold for spring clips according to claim 5, characterized in that, The top of the punch is provided with a disc-shaped limiting block, and the top of the upper fixing plate is provided with a limiting groove that matches the limiting block.

7. The composite mold for spring clips according to claim 6, characterized in that, The lower mold assembly also includes a lower template, and the punch and die are connected to the lower template via threaded parts.

8. The composite mold for spring clips according to claim 7, characterized in that, The lower mold assembly also includes a lower fixing plate, which surrounds the punch and die and is connected to the lower mold plate via a threaded component; a stripper rubber ring is provided on the top of the lower fixing plate, which surrounds the punch and die; a stripper plate is provided on the top of the stripper rubber ring, and a matching groove matching the punch and die is provided in the middle of the stripper plate.

9. The composite mold for a spring clip according to claim 8, characterized in that, The bottom surface of the unloading plate is not higher than the top surface of the punch and die.

10. The composite mold for a spring clip according to claim 9, 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.

Images