Type-C connector shell stamping die

Abstract

The utility model discloses a Type-C connector shell stamping die, and relates to the technical field of stamping dies. The die comprises an upper die and a lower die, the upper die comprises an upper die base, an upper padding plate, a clamping plate, a back stripping plate and a stripping plate, and the lower die comprises a lower die base, a lower padding plate and a lower die plate. A guide positioning punch is mounted on the clamping plate; a first upper die push rod and a second upper die push rod are mounted on the stripper plate; a lower die positioning insert is embedded in the lower die plate, a positioning step hole is formed in the lower die positioning insert, a chamfering punch is slidably connected to the lower portion of the positioning step hole, a first lower die sliding block and a second lower die sliding block are slidably connected to the lower die plate, and lateral punches are installed on the first lower die sliding block and the second lower die sliding block. The lower portion of the second lower die sliding block is connected with a lower die push rod. In the stamping process, the inner ring chamfering structure of a shell product can be synchronously machined, and CNC secondary machining is not needed.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, and in particular to a stamping die for a Type-C connector housing. Background Technology

[0002] Type-C is a symmetrical, reversible universal connector standard. The core structure of a Type-C connector includes a housing and a core. The housing is the external metal protective structure of the Type-C connector, and the core is the internal insulating skeleton of the Type-C connector.

[0003] like Figures 1-2 As shown, some Type-C connector housing products 300 have a C0.05mm full-circumference chamfer structure 3001 on the inner ring of the opening. This prevents the sharp corner of the inner ring from scratching the core and generating adhesive residue during assembly of the core and housing. However, current Type-C connector housing stamping dies cannot simultaneously process the inner ring chamfer structure 3001 during the corresponding stamping process. The inner ring chamfer structure 3001 requires secondary CNC machining, which increases subsequent processes and reduces the production efficiency of the housing products. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a stamping die for a Type-C connector housing, which can simultaneously realize the chamfering structure of the inner ring of the housing product during the stamping process without the need for secondary CNC machining.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A stamping die for a Type-C connector housing includes an upper die and a lower die. The upper die includes an upper die base, an upper pad, a clamping plate, a back ejector plate, and a stripper plate arranged sequentially from top to bottom. The lower die includes a lower die base, a lower pad, and a lower die plate arranged sequentially from bottom to top. A guide positioning punch is vertically mounted on the clamping plate. The lower end of the guide positioning punch passes through the back ejector plate and the stripper plate and is used to insert into the central through hole of the housing product. A first upper die push rod and a second upper die push rod are vertically mounted on both sides of the guide positioning punch on the stripper plate. The lower ends of the first upper die push rod and the second upper die push rod are respectively provided with a first inclined surface and a second inclined surface. A lower die positioning block is embedded in the lower die plate. The lower die positioning block is provided with a... The housing has a positioning step hole that matches its shape. A chamfering punch that can move up and down is slidably connected below the positioning step hole. On the lower template, a first lower die slider and a second lower die slider that can move horizontally are slidably connected on both sides of the lower die positioning block. The top of the first lower die slider has a third inclined surface parallel to the first inclined surface, and the top of the second lower die slider has a fourth inclined surface parallel to the second inclined surface. Both the first and second lower die sliders are horizontally mounted with lateral punches. The lateral punches move through the side wall of the lower die positioning block and are used to insert into the positioning step hole. The lower part of the second lower die slider is also integrally connected with a horizontal lower die push rod, which is used to push the chamfering punch upward.

[0007] In some embodiments, the top of the chamfering punch is frustum-shaped, and the bottom is provided with a fifth inclined surface; a sixth inclined surface is provided on the lower die push rod near the end of the chamfering punch, and the sixth inclined surface is parallel to the fifth inclined surface.

[0008] Compared with the prior art, this utility model achieves at least the following beneficial effects:

[0009] During mold closing, the upper mold moves downward, and the first upper mold push rod can push the first lower mold slider to move horizontally closer to the lower mold positioning block. The second upper mold push rod can push the second lower mold slider to move horizontally closer to the lower mold positioning block. The first and second lower mold sliders can drive the side punches to punch out the convex structure on both sides of the shell product. At the same time, the second lower mold slider can also drive the lower mold push rod to push the chamfering punch upward to contact the shell product. Under the action of the punch press pressure, the inner ring chamfer structure is formed. This invention can process the convex structure and chamfer structure of the shell product in one mold closing process, reducing subsequent processes, eliminating the need for secondary CNC machining, and improving the production efficiency of the shell product. Attached Figure Description

[0010] One or more embodiments of the present invention will now be described by way of example only with reference to the accompanying drawings, in which:

[0011] Figure 1 This is a structural schematic diagram of the casing product;

[0012] Figure 2 This is a cross-sectional view of the casing product;

[0013] Figure 3 This is a schematic diagram of the structure during mold making in an embodiment of this application;

[0014] Figure 4 This is a schematic diagram of the stripper plate and lower template according to an embodiment of this application;

[0015] Figure 5 This is a schematic diagram of the structure during mold closing in an embodiment of this application.

[0016] The diagram is labeled as follows: 1. Upper die base; 2. Upper backing plate; 3. Clamping plate; 4. Back stripper plate; 5. Stripper plate; 6. Lower die base; 7. Lower backing plate; 8. Lower template; 81. Mounting step hole; 9. Guiding and positioning punch; 10. First upper die push rod; 101. First inclined surface; 20. Second upper die push rod; 201. Second inclined surface; 30. Lower die positioning block; 301. Positioning step hole; 40. Chamfered punch; 401. Fifth inclined surface; 50. Lower die slider; 501, third inclined surface; 60, second lower die slider; 601, fourth inclined surface; 70, side punch; 80, lower die push rod; 801, sixth inclined surface; 90, reset assembly; 901, connecting bolt; 902, limit nut; 903, reset spring; 100, stripper block; 1001, positioning through hole; 200, lower pad block; 300, housing product; 3001, chamfered structure; 3002, convex bulge structure. Detailed Implementation

[0017] The present invention will now be described in detail with reference to exemplary embodiments shown in the accompanying drawings. However, it should be understood that the present application may be implemented in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided herein to make the disclosure of this application more complete and to fully convey the concept of the present application to those skilled in the art.

[0018] In the description of this application, 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," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this application. 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "several" or "more than" means two or more, unless otherwise explicitly specified. In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. Moreover, "above," "over," and "on top" of a 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" of a 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.

[0019] like Figures 3-5 As shown in the embodiment of this application, a Type-C connector housing stamping die includes an upper die and a lower die.

[0020] The upper mold includes an upper mold base 1, an upper pad 2, a clamping plate 3, a back stripping plate 4, and a stripping plate 5 arranged sequentially from top to bottom. A guide positioning punch 9 is vertically installed on the clamping plate 3. The lower end of the guide positioning punch 9 passes through the back stripping plate 4 and the stripping plate 5 in sequence and is used to insert into the central through hole of the housing product 300. A first upper mold push rod 10 and a second upper mold push rod 20 are vertically installed on both sides of the guide positioning punch 9 on the stripping plate 5. The lower ends of the first upper mold push rod 10 and the second upper mold push rod 20 are respectively provided with a first inclined surface 101 and a second inclined surface 201.

[0021] The lower mold includes a lower mold base 6, a lower pad 7, and a lower mold plate 8 arranged sequentially from bottom to top. A lower mold positioning block 30 is embedded on the lower mold plate 8 below the guiding and positioning punch 9. The lower mold positioning block 30 has a positioning step hole 301 that matches the shape of the housing product 300. The positioning step hole 301 is used to place the housing product 300. A chamfering punch 40 that can move up and down is slidably connected below the positioning step hole 301. A first lower mold slider 50 and a second lower mold slider 60 that can move horizontally are slidably connected on both sides of the lower mold positioning block 30 on the lower mold plate 8. The first lower mold slider 50 and the second lower mold slider 60 are respectively located on the first upper mold push rod 1. Below the second upper die push rod 20, the top of the first lower die slider 50 is provided with a third inclined surface 501 parallel to the first inclined surface 101, and the top of the second lower die slider 60 is provided with a fourth inclined surface 601 parallel to the second inclined surface 201. Both the first lower die slider 50 and the second lower die slider 60 are horizontally mounted with a side punch 70. The side punch 70 moves through the side wall of the lower die positioning block 30 and is used to insert into the positioning step hole 301, so that a convex structure 3002 can be punched inward from the side wall of the housing product 300. The lower part of the second lower die slider 60 is also integrally connected with a horizontal lower die push rod 80, which is used to push the chamfering punch 40 to move upward.

[0022] The working principle of this utility model is as follows:

[0023] As the press operates, the upper die moves downward, and the first inclined surface 101 of the first upper die push rod 10 contacts the third inclined surface 501 at the top of the first lower die slider 50, pushing the first lower die slider 50 to move horizontally closer to the lower die positioning block 30. The second inclined surface 201 of the second upper die push rod 20 contacts the fourth inclined surface 601 at the top of the second lower die slider 60, thus pushing the second lower die slider 60 to move horizontally closer to the lower die positioning block 30. In other words, the first lower die slider 50 and the second lower die slider 60 move towards each other, thus stripping the material. Plate 5 contacts and closes with the lower template 8, pressing down on the shell product 300. Back release plate 4 closes with clamping plate 3. The first lower die slider 50 and the second lower die slider 60 drive the side punch 70 to punch out the convex structure 3002 inwards on both side walls of the shell product 300. Simultaneously, the second lower die slider 60 also drives the lower die push rod 80 to push the chamfering punch 40 upwards to contact the shell product 300. Under the pressure of the punch press, an inner ring chamfer structure 3001 (C0.05mm) is formed. After one stroke, the upper die rises. This invention can simultaneously process the convex structure 3002 and the chamfer structure 3001 of the shell product 300 in one mold closing process, reducing subsequent processes, eliminating the need for secondary CNC machining, improving the production efficiency of the shell product 300, and ensuring the quality requirements of the shell product 300.

[0024] Specifically, the top of the chamfering punch 40 is frustum-shaped, and the bottom has a fifth inclined surface 401; the end of the lower die push rod 80 near the chamfering punch 40 has a sixth inclined surface 801, which is parallel to the fifth inclined surface 401. When the first lower die slider 50 and the second lower die slider 60 move towards each other, the lower die push rod 80 approaches the chamfering punch 40, and the sixth inclined surface 801 of the lower die push rod 80 engages with the fifth inclined surface 401 of the chamfering punch 40. As the lower die push rod 80 continues to move horizontally, it can push the chamfering punch 40 upward to contact and hold the housing product 300. Under the action of the punching pressure, the top of the chamfering punch 40 forms a chamfer on the inner circle of the bottom of the housing product 300. Optionally, an elastic element is provided between the chamfering punch 40 and the lower die plate 8. When the lower die push rod 80 moves horizontally away from the chamfering punch 40, the elastic element can drive the chamfering punch 40 to move downward and reset under the action of elastic force.

[0025] The lower template 8 is provided with a horizontal mounting step hole 81 located outside the first lower mold slider 50 and the second lower mold slider 60. The mounting step hole 81 is connected to a reset assembly 90. The reset assembly 90 includes a connecting bolt 901, a limit nut 902 and a reset spring 903. The screw end of the connecting bolt 901 moves through the mounting step hole 81 and is threadedly connected to the first lower mold slider 50 or the second lower mold slider 60. The limit nut 902 is threadedly connected to the screw of the connecting bolt 901 and is located outside the mounting step hole 81. The reset spring 903 is sleeved on the screw of the connecting bolt 901, with one end abutting against the step surface of the mounting step hole 81 and the other end abutting against the limit nut 902. When the upper and lower dies open, the upper die rises, and the first lower die slider 50 and the second lower die slider 60 can move in opposite directions under the action of the reset assembly 90, that is, reset outward. Specifically, the upper die drives the first upper die push rod 10 and the second upper die push rod 20 to rise. The first upper die push rod 10 and the second upper die push rod 20 separate from the first lower die slider 50 and the second lower die slider 60. The reset spring 903 returns to its original length due to the elastic force, thereby pushing the limit nut 902 and the connecting bolt 901 to move outward. The connecting bolt 901 drives the first lower die slider 50 or the second lower die slider 60 to move outward and reset, so that the side punch 70 moves away from the shell product 300, and the lower die push rod 80 on the second lower die slider 60 moves away from the chamfering punch 40. The chamfering punch 40 moves downward and resets, completing the chamfering and convex processing of the shell product 300 and stripping, resulting in a product with a complete structure.

[0026] A stripper block 100 is installed on the stripper plate 5. The stripper block 100 has a positioning through hole 1001 that matches the guide positioning punch 9. The lower end of the guide positioning punch 9 passes through the back stripper plate 4 and the positioning through hole 1001 in sequence. The positioning through hole 1001 can position and guide the guide positioning punch 9. When the upper mold and the lower mold are closed, the lower end of the guide positioning punch 9 is used to insert into the central through hole of the housing product 300. The width of the guide positioning punch 9 is equal to the width of the central through hole of the housing product 300. When the guide positioning punch 9 is inserted into the central through hole of the housing product 300, it does not obstruct the convex bulge processing area. The guide positioning punch 9 can guide and fix the position of the housing product 300 in the positioning step hole 301 to ensure that the side punch 70 and the chamfering punch 40 can accurately process the housing product 300.

[0027] In addition, the lower die also includes a lower pad 200, which is supported below the lower die base 6. The lower pad 200 is used to withstand the vertical pressure during stamping. Furthermore, by increasing or decreasing the thickness of the lower pad 200, the stroke and closing height of different punch presses can be matched to ensure that the upper and lower dies are properly closed.

[0028] It should be understood that all the above embodiments are exemplary and not restrictive. Any modifications, equivalent changes and alterations made by those skilled in the art to the specific embodiments described above under the concept of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. A stamping die for a Type-C connector housing, comprising an upper die and a lower die, wherein the upper die comprises an upper die base, an upper pad, a clamping plate, a back stripper plate, and a stripper plate arranged sequentially from top to bottom, and the lower die comprises a lower die base, a lower pad, and a lower template arranged sequentially from bottom to top, characterized in that: A guide positioning punch is vertically installed on the clamping plate. The lower end of the guide positioning punch passes through the back stripping plate and the stripping plate in sequence and is used to insert into the central through hole of the shell product. A first upper die push rod and a second upper die push rod are vertically installed on both sides of the guide positioning punch on the stripping plate. The lower ends of the first upper die push rod and the second upper die push rod are respectively provided with a first inclined surface and a second inclined surface. The lower template is fitted with a lower mold positioning block, which has a positioning step hole that matches the shape of the shell product. A chamfering punch that can move up and down is slidably connected below the positioning step hole. A first lower mold slider and a second lower mold slider that can move horizontally are slidably connected on both sides of the lower mold positioning block. The top of the first lower mold slider has a third inclined surface parallel to the first inclined surface, and the top of the second lower mold slider has a fourth inclined surface parallel to the second inclined surface. Both the first and second lower mold sliders are horizontally mounted with lateral punches. The lateral punches move through the side wall of the lower mold positioning block and are used to insert into the positioning step hole. A horizontal lower mold push rod is also integrally connected to the lower part of the second lower mold slider. The lower mold push rod is used to push the chamfering punch to move upward.

2. The Type-C connector housing press die of claim 1, wherein: The top of the chamfering punch is frustum-shaped, and the bottom has a fifth inclined surface; the lower die push rod has a sixth inclined surface at one end near the chamfering punch, and the sixth inclined surface is parallel to the fifth inclined surface.

3. The Type-C connector housing stamping die according to claim 1, characterized in that: The lower template has a horizontal mounting step hole located outside the first and second lower mold sliders. The mounting step hole is connected to a reset assembly, which includes a connecting bolt, a limiting nut, and a reset spring. The threaded end of the connecting bolt passes through the mounting step hole and is threadedly connected to the first or second lower mold slider. The limiting nut is threadedly connected to the threaded end of the connecting bolt and is located outside the mounting step hole. The reset spring is sleeved on the threaded end of the connecting bolt, with one end abutting against the step surface of the mounting step hole and the other end abutting against the limiting nut.

4. The Type-C connector housing stamping die according to claim 1, characterized in that: The stripping plate is equipped with a stripping feed block, which has a positioning through hole that matches the guiding and positioning punch. The lower end of the guiding and positioning punch passes through the stripping plate and the positioning through hole in sequence.

5. The Type-C connector housing stamping die according to claim 1, characterized in that: The width of the guiding and positioning punch is equal to the width of the central through hole of the housing product.

6. The Type-C connector housing stamping die according to claim 1, characterized in that: The lower mold also includes a lower pad block, which is supported below the lower mold base.

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