Punching die for producing three soldering lugs at one time

Abstract

The utility model discloses a one-out three soldering lug punching die relates to soldering lug processing technical field, including top plate, upper template, intermediate plate, pressure plate, elastic floating plate, lower template and bottom plate in proper order from top to bottom, top plate is connected with bottom plate through four outer guide pillar, intermediate plate is connected with lower template through four inner guide pillar, and the elastic floating plate is connected with the lower template through four inner guide pillar. The upper die plate, the middle plate and the material pressing plate are fixedly connected with the top plate in a relative mode, the lower die plate is fixedly connected with the bottom plate, the elastic floating plate is arranged on the lower die plate in an up-and-down moving mode, and N stamping knives are arranged in the elastic floating plate. The soldering lug punching die is placed on a punching machine and used in cooperation with the punching machine, the punching machine drives the top plate, the upper die plate, the middle plate and the material pressing plate to move downwards to conduct punching work, N soldering lugs can be formed through one-time downward pressing, the machining efficiency is high, the production efficiency of the soldering lugs can be effectively improved, and therefore the soldering lug punching die is high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of solder tab processing, specifically a three-out-one solder tab punching die. Background Art

[0002] During the semiconductor processing, it is necessary to punch a tin strip into multiple micro solder tabs to meet the die bonding work of wafers. In the prior art, the tin strip punching is generally carried out manually. This manual punching method has low efficiency, high labor cost, and the punching accuracy is affected by the proficiency of workers, resulting in low punching accuracy and easy material waste.

[0003] In the utility model with the Chinese patent publication number CN211803298U, a punching mechanism for solder tab processing is proposed. The punching mechanism for solder tab processing drives the tin strip on the tin strip roll to move horizontally through the tensioning part, and conveys the tin strip between the punching die and the material receiving part. The punch on the punching die punches the tin strip into solder tabs from bottom to top and pushes the solder tabs into the material receiving part, thereby completing the automatic punching work of the solder tabs, improving the punching efficiency, ensuring the punching quality, and reducing the production cost. However, the applicant finds that the production efficiency of the prior art can still be improved. Therefore, the three-out-one solder tab punching die is proposed in the present utility model. Summary of the Utility Model

[0004] Technical Problems to be Solved

[0005] The purpose of the present utility model is to make up for the deficiencies of the prior art and provide a three-out-one solder tab punching die.

[0006] Technical Solutions

[0007] To achieve the above object, the present utility model provides the following technical solutions: A three-out-one solder tab punching die, including a top plate, an upper template, an intermediate plate, a pressure plate, an elastic floating plate, a lower template and a bottom plate which are arranged in sequence from top to bottom. The top plate is connected to the bottom plate through four outer guide columns. The intermediate plate is connected to the lower template through four inner guide columns. The upper template, the intermediate plate and the pressure plate are fixedly connected to the top plate relatively. The lower template is fixedly connected to the bottom plate. The elastic floating plate is arranged on the lower template so as to be movable up and down. N punching knives are arranged inside the elastic floating plate. The present utility model is placed on a punching press and used in cooperation with the punching press. The punching press drives the top plate, the upper template, the intermediate plate and the pressure plate to move downward. After pressing the material tape, it continues to press the elastic floating plate. Since the N punching knives are fixedly connected to the lower template, when the pressure plate continues to press down, the N punching knives and N pressure head assemblies tightly press on the upper and lower sides of the solder tab, separating the solder tab at its corresponding position from the material tape and punching out discrete small pieces. The present utility model can form N solder tabs in one downward press, with high processing efficiency, and thus can effectively improve the production efficiency of the solder tabs, making the solder tab punching die highly practical.

[0008] Preferably, N pressure head assemblies are arranged directly above the N punching tools.

[0009] Preferably, the pressure head assembly includes a T-shaped member and a plurality of guide posts connected to the T-shaped member.

[0010] Preferably, the cross-sections of the N punching tools are rectangular, and the N punching tools are arranged in a straight line along the diagonal direction of the rectangle.

[0011] Preferably, the N punching tools are fixedly connected to the lower template.

[0012] Beneficial effects:

[0013] Compared with the prior art, the one-out-three solder tab punching die has the following beneficial effects:

[0014] The utility model is placed on a punching press and used in cooperation with the punching press. The punching press drives the top plate, the upper template, the middle plate, and the pressure plate to move downward for punching work. The utility model can form N solder tabs in one press-down, with high processing efficiency, and avoid the waste of materials caused by low manual precision, effectively improving the production efficiency of the solder tabs and making the solder tab punching die highly practical. Description of the drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 is a structural schematic diagram of the present utility model;

[0017] Figure 2 is a front view structural schematic diagram of the present utility model;

[0018] Figure 3 is an installation structural schematic diagram of the elastic floating plate of the present utility model;

[0019] Figure 4 is an installation structural schematic diagram of the punching tool of the present utility model;

[0020] Figure 5 is an installation structural schematic diagram of the pressure head assembly of the present utility model;

[0021] Figure 6 is a structural schematic diagram of the pressure head assembly of the present utility model.

[0022] In the figure:

[0023] 1. Top plate; 2. Upper template; 3. Intermediate plate; 4. Pressure plate; 5. Elastic floating plate; 6. Lower template; 7. Bottom plate; 8. Outer guide pillar; 9. Inner guide pillar; 10. Punch; 11. Pressure head assembly; 1101. T-shaped part; 1102. Guide pillar. Detailed implementation mode

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figures 1 to 6 As shown, the present invention provides a technical solution: a three-out-one solder tab punching die, characterized in that it includes a top plate 1, an upper template 2, an intermediate plate 3, a pressure plate 4, an elastic floating plate 5, a lower template 6 and a bottom plate 7 arranged in sequence from top to bottom. The top plate 1 is connected to the bottom plate 7 through four outer guide pillars 8. The intermediate plate 3 is connected to the lower template 6 through four inner guide pillars 9. The upper template 2, the intermediate plate 3 and the pressure plate 4 are fixedly connected to the top plate 1 relatively. The lower template 6 is fixedly connected to the bottom plate 7. The elastic floating plate 5 is arranged on the lower template 6 so as to be movable up and down. N punches 10 are arranged inside the elastic floating plate 5. The present invention is placed on a punching press and used in cooperation with the punching press. This die is placed on the punching press. The punching press drives the top plate 1, the upper template 2, the intermediate plate 3, and the pressure plate 4 to move downward. After pressing against the material strip, it continues to press against the elastic floating plate 5. Since the N punches 10 are fixedly connected to the lower template 7, when the pressure plate 4 continues to press down, the N punches 10 and the N pressure head assemblies 11 tightly press on the upper and lower sides of the solder tab, separating the solder tab at its corresponding position from the material strip and punching out discrete small pieces. The present invention can form N solder tabs in one downward press, with high processing efficiency, and thus can effectively improve the production efficiency of the solder tab, making this solder tab punching die highly practical.

[0026] Please refer specifically to Figure 5 and Figure 6 , above the N punches 10, there are N pressure head assemblies 11. The pressure head assembly 11 includes a T-shaped part 1101 and a plurality of guide pillars 1102 connected to the T-shaped part 1101.

[0027] Please refer specifically to Figure 4 , the cross-sections of the N punches 10 are rectangular, the N punches 10 are arranged in a straight line along the diagonal direction of the rectangle, and the N punches 10 are fixedly connected to the lower template 6.

[0028] Working principle: This punching die is used to punch a continuous long strip of solder tape into discrete small rectangles. When working, this die is placed on a punching press, and the punching press drives the top plate 1, the upper template 2, the middle plate 3, and the pressure plate 4 to move downward. After pressing against the feed tape, it continues to press against the elastic floating plate 5. Since N punching knives 10 are fixedly connected to the lower template 7, when the pressure plate 4 continues to press down, the N punching knives 10 and the N pressure head assemblies 11 tightly press on the upper and lower sides of the solder pad, separating the solder pad at the corresponding position from the feed tape and punching out discrete small pieces. In this application, N solder pads can be formed in one downward press.

[0029] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "including", "comprising" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent in such process, method, article or device.

[0030] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. One-out three-weld sheet punching die, characterized by: The invention comprises a top plate (1), an upper template (2), an intermediate plate (3), a pressure plate (4), an elastic floating plate (5), a lower template (6) and a bottom plate (7) which are arranged in sequence from top to bottom. The top plate (1) is connected to the bottom plate (7) via four outer guide pillars (8), the intermediate plate (3) is connected to the lower template (6) via four inner guide pillars (9), the upper template (2), the intermediate plate (3) and the pressure plate (4) are relatively fixedly connected to the top plate (1), the lower template (6) is fixedly connected to the bottom plate (7), the elastic floating plate (5) is arranged on the lower template (6) so as to move up and down, and N punching knives (10) are arranged inside the elastic floating plate (5).

2. The three-weld-piece punching die according to claim 1, characterized in that: N pressing head assemblies (11) are arranged directly above the N punching knives (10).

3. The three-weld-piece punching die according to claim 2, characterized in that: The pressing head assembly (11) comprises a T-shaped piece (1101) and a plurality of guide pillars (1102) connected to the T-shaped piece (1101).

4. The three-weld-piece punching die according to claim 1, characterized in that: The cross-sections of the N punching knives (10) are rectangular, and the N punching knives (10) are arranged in a straight line along the diagonal direction of the rectangle.

5. The three-weld-piece punching die according to claim 1, characterized in that: The N punching knives (10) are fixedly connected to the lower template (6).

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