Mounting structure for lead frame irregular pin forming die

Abstract

This utility model relates to the field of mold installation technology and discloses an installation structure for a lead frame irregular pin forming mold, including an installation base and a forming mold located on top of the installation base. A positioning post is fixedly installed on one end of the installation base near the forming mold, and a positioning hole is opened on one end of the forming mold near the installation base. A sliding groove is opened on the top end of the installation base away from the groove. This installation structure for the lead frame irregular pin forming mold, through the cooperation of the positioning post and the positioning hole, enables rapid installation of the forming mold and the installation base. Subsequently, through a turntable, two sets of clamping blocks, a sliding block, and a fixing block can move in opposite directions. Then, through the insertion design of the protrusion and the limiting groove, the forming mold can be wrapped around the top of the installation base. The operation is simple and highly practical, further strengthening the connection between the installation base and the forming mold and ensuring the stability during mold processing.

Description

Technical Field

[0001] This utility model relates to the field of mold installation technology, specifically to an installation structure for a mold for forming irregular pins of a lead frame. Background Technology

[0002] As a chip carrier for integrated circuits, the leadframe is a key structural component that uses bonding materials (gold wire, aluminum wire, copper wire) to achieve electrical connection between the internal circuit leads of the chip and the external leads, forming an electrical circuit. It acts as a bridge connecting to external wires. Most semiconductor integrated circuits require the use of leadframes, making it an important basic material in the electronics and information industry. The leadframe mainly consists of two parts: the base island and the pins. The base island provides mechanical support for the chip during the packaging process, while the pins are the electrical pathways connecting the chip to the outside of the package. As for the pins, each pin's end is connected to a pad on the chip via a lead wire; this end is called the inner pin. The other end of the pin is called the lead, which provides mechanical and electrical connection to the printed circuit board.

[0003] Chinese Utility Model Patent Publication No. CN 221473230 U discloses an installation structure for a precision combination mold. This structure includes a base and a precision combination mold body. A sliding groove is provided inside the base. When the precision combination mold body needs to be installed, rotating the rotating cover causes a screw to rotate inside a threaded tube. The screw's rotation causes it to move within the threaded tube. A push rod is fixedly connected to the outside of the screw, and one end of the push rod is rotatably engaged with a positioning hole inside a moving plate. Therefore, the movement of the push rod causes the moving plate to slide inside the sliding groove. The moving plate then causes a slider to slide outside the base. Through the cooperation of the slider and the connecting rod, the outer side of the positioning plate is engaged with the outer side of the worktable, achieving rapid installation of the precision combination mold body. However, this installation structure lacks a mold clamping structure, which hinders the stability of the mold during operation. It is easily displaced by vibration or impact, leading to reduced mold forming efficiency and low practicality. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide an installation structure for a mold for forming irregular pins of a lead frame, which can effectively solve the problems in the prior art.

[0005] The technical solution adopted by this utility model is: an installation structure for a lead frame irregular pin forming mold, including an installation base and a forming mold located on top of the installation base. A positioning post is fixedly installed on the end of the installation base near the forming mold. A positioning hole is opened on the end of the forming mold near the installation base. A limit groove is opened at the center of the top of the installation base. A sliding groove is opened on the end of the top of the installation base away from the groove. A clamping component is provided on the top of the installation base. A slider is fixedly installed on the end of the installation base away from the forming mold. A stamping platform is provided on the side of the installation base away from the forming mold. Sliding grooves are opened at equal intervals on the end of the stamping platform near the installation base. An installation hole is opened on the side of the stamping platform near the installation base away from the sliding groove. An installation screw is provided on the top of the installation base away from the forming mold.

[0006] The clamping assembly includes a clamping block, a protrusion, a second groove, a first slider, a fixing block, a bidirectional screw, and a turntable. The top of the mounting base is provided with a clamping block, and a protrusion is provided on the side of the clamping block near the limiting groove. A first groove is formed between the protrusion and the clamping block. A fixing block is fixedly installed at the center of the bottom of the clamping block. A first slider is fixedly installed at the bottom of the clamping block away from the fixing block. A bidirectional screw is threaded on the inner side of the fixing block, and a turntable is fixedly installed at one end of the bidirectional screw.

[0007] Preferably, the second slide groove and the second slider are slidably connected, the mounting screws correspond to the mounting holes, and the mounting base is fixed to the stamping platform by the mounting screws.

[0008] Through the above technical solution, by setting the slide groove two and the slider two to be slidably connected, the mounting base and the stamping platform can be quickly connected. Then, by matching the mounting screws with the mounting holes one by one, the mounting base and the stamping platform can be quickly fixed, which effectively improves the installation efficiency of the workers.

[0009] Preferably, the limiting groove and the protrusion have the same cross-section, the protrusion can be inserted into the inner side of the limiting groove, and the width of the second groove is the same as the diameter of the positioning post.

[0010] With the above technical solution, after the mounting base and the molding mold are installed, the connection strength between the molding mold and the mounting base can be effectively strengthened by inserting the protrusion into the inner side of the limiting groove, thereby improving the stability of the device during operation and thus improving the mold production quality. By setting the width of the second groove to be the same as the diameter of the positioning post, it is convenient to achieve the limiting effect on the positioning post when the protrusion is inserted into the limiting groove.

[0011] Preferably, the first slider and the first groove have the same cross-section, and the first slider and the first groove are slidably connected.

[0012] Through the above technical solution, by designing a sliding connection between slider one and slide groove one, the clamping block can move axially under the guidance of slide groove one, thereby further improving the accuracy of the clamping block displacement.

[0013] Preferably, the clamping block, slider one, and fixing block are provided in two identical sets, and the two sets of clamping blocks, slider one, and fixing blocks are symmetrically distributed on the mounting base, and the two sets of fixing blocks are threadedly connected to the bidirectional screw.

[0014] The above technical solution, by setting two sets of identical clamping blocks, slider one, and fixing blocks, allows the two sets of clamping blocks, slider one, and fixing blocks to move in opposite directions when the turntable is rotated, through the threaded connection between the bidirectional screw and the fixing block. This enables the molding mold to be wrapped around the top of the mounting base, and the operation is relatively simple and practical.

[0015] Preferably, the positioning post and the positioning hole have the same cross-section, and the positioning post and the positioning hole are connected by insertion.

[0016] By using the above technical solution, and by setting the positioning pin and positioning hole for plug-in installation, the positioning hole can be directly aligned with the positioning pin when installing the molding die, which can effectively reduce installation errors and improve production efficiency.

[0017] Compared with the prior art, the present invention provides an installation structure for a mold for forming irregular leads of a lead frame, which has the following advantages:

[0018] 1. The mounting structure of this lead frame irregular pin forming mold uses a positioning post and positioning hole for plug-in installation. This allows the positioning hole to be directly aligned with the positioning post during mold installation, thereby reducing installation errors and improving installation efficiency. After the forming mold is connected to the mounting base, the operator can manually rotate the turntable. The fixed connection between the turntable and the bidirectional screw allows the bidirectional screw to rotate. With two sets of fixing blocks and the bidirectional screw being threaded connections, and the sliding block and the sliding groove being slidably connected, the two sets of clamping blocks, the sliding block and the fixing block can move in opposite directions. Then, through the plug-in design of the protrusion and the limiting groove, the forming mold can be wrapped around the top of the mounting base. The operation is simple and highly practical. It further strengthens the connection between the mounting base and the forming mold, ensures the stability of the mold during processing, and avoids positional displacement caused by vibration or impact.

[0019] 2. The mounting structure for the irregular pin forming mold of the lead frame, by setting the sliding groove two and the slider two as sliding connections, can realize the quick connection between the mounting base and the stamping platform. Then, by matching the mounting screws with the mounting holes one by one, the mounting base and the stamping platform can be quickly disassembled and assembled, which effectively improves the installation efficiency of the workers and facilitates the disassembly of the forming mold. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the installation structure of the mounting base and the molding die of this utility model;

[0022] Figure 3 This is a schematic diagram showing the disassembled structure of the mounting base and the molding die of this utility model;

[0023] Figure 4 This is a schematic diagram of the mounting base structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the clamping assembly structure of this utility model.

[0025] The components include: 1. Mounting base; 2. Forming mold; 3. Positioning pin; 4. Positioning hole; 5. Limiting groove; 6. Groove one; 7. Slide one; 8. Clamping assembly; 801. Clamping block; 802. Protrusion; 803. Groove two; 804. Slider one; 805. Fixing block; 806. Bidirectional screw; 807. Turntable; 9. Slider two; 10. Stamping platform; 11. Slide two; 12. Mounting hole; 13. Mounting screw. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1: As Figure 1-5As shown, the present invention provides an installation structure for a lead frame irregular pin forming mold, including an installation base 1 and a forming mold 2 located on the top of the installation base 1. A positioning post 3 is fixedly installed at one end of the installation base 1 near the forming mold 2. A positioning hole 4 is opened at one end of the forming mold 2 near the installation base 1. A limiting groove 5 is opened at the center of the top of the installation base 1. A sliding groove 7 is opened at one end of the top of the installation base 1 away from the groove 6. A clamping component 8 is provided on the top of the installation base 1. A slider 9 is fixedly installed at one end of the installation base 1 away from the forming mold 2. A stamping platform 10 is provided on one side of the installation base 1 away from the forming mold 2. A sliding groove 11 is opened at equal intervals at one end of the stamping platform 10 near the installation base 1. An installation hole 12 is opened on one side of the stamping platform 10 near the installation base 1 away from the sliding groove 11. An installation screw 13 is provided on one side of the top of the installation base 1 away from the forming mold 2.

[0028] The clamping assembly 8 includes a clamping block 801, a protrusion 802, a second groove 803, a first slider 804, a fixing block 805, a bidirectional screw 806, and a turntable 807. The clamping block 801 is provided on the top of the mounting base 1. The protrusion 802 is provided on the side of the clamping block 801 near the limiting groove 5. A first groove 6 is provided between the protrusion 802 and the clamping block 801. The fixing block 805 is fixedly installed at the center of the bottom of the clamping block 801. The first slider 804 is fixedly installed at the bottom of the clamping block 801 away from the fixing block 805. The bidirectional screw 806 is threaded on the inner side of the fixing block 805. The turntable 807 is fixedly installed at one end of the bidirectional screw 806.

[0029] Specifically, the slide groove 11 and the slider 9 are slidably connected, the mounting screws 13 correspond to the mounting holes 12, and the mounting base 1 is fixed to the stamping platform 10 by the mounting screws 13. The advantage is that by designing the slide groove 11 and the slider 9 to be slidably connected, a quick connection between the mounting base 1 and the stamping platform 10 can be achieved. Subsequently, by matching the mounting screws 13 with the mounting holes 12, the mounting base 1 and the stamping platform 10 can be quickly fixed, effectively improving the installation efficiency of the workers.

[0030] Specifically, the limiting groove 5 and the protrusion 802 have the same cross-section, and the protrusion 802 can be inserted into the inner side of the limiting groove 5. The width of the second groove 803 is the same as the diameter of the positioning post 3. The advantage is that after the mounting base 1 and the molding mold 2 are installed, the connection strength between the molding mold 2 and the mounting base 1 can be effectively strengthened by inserting the protrusion 802 into the inner side of the limiting groove 5, thereby improving the stability of the device during operation and thus improving the mold production quality. By setting the width of the second groove 803 to be the same as the diameter of the positioning post 3, it is convenient to limit the positioning post 3 when the protrusion 802 is inserted into the limiting groove 5.

[0031] Example 2: Figure 2-5 As shown, this is an improvement on the previous embodiment.

[0032] Specifically, slider 804 and slide groove 7 have the same cross-section, and slider 804 and slide groove 7 are slidably connected. The advantage is that by designing slider 804 and slide groove 7 as slidably connected, clamping block 801 can move axially under the guidance of slide groove 7, further improving the accuracy of clamping block 801's displacement.

[0033] Specifically, two identical sets of clamping blocks 801, slider 804, and fixing blocks 805 are provided. Both sets of clamping blocks 801, slider 804, and fixing blocks 805 are symmetrically distributed on the mounting base 1, and both sets of fixing blocks 805 are threadedly connected to the bidirectional screw 806. The advantage is that by providing two identical sets of clamping blocks 801, slider 804, and fixing blocks 805, when the turntable 807 is rotated, the threaded connection between the bidirectional screw 806 and the fixing blocks 805 allows the two sets of clamping blocks 801, slider 804, and fixing blocks 805 to move in opposite directions, thereby encasing the molding die 2 on top of the mounting base 1. Furthermore, the operation is relatively simple and practical.

[0034] Specifically, the positioning pin 3 and the positioning hole 4 have the same cross-section, and the positioning pin 3 and the positioning hole 4 are connected by an insertion joint. The advantage is that by setting the positioning pin 3 and the positioning hole 4 to be connected by an insertion joint, when installing the molding mold 2, the positioning hole 4 can be directly aligned with the positioning pin 3 and inserted, which can effectively reduce installation errors and improve production efficiency.

[0035] Working Principle: During use, by setting the positioning pin 3 and positioning hole 4 for plug-in installation, the positioning hole 4 can be directly aligned with the positioning pin 3 when installing the molding mold 2, thereby reducing installation errors and improving installation efficiency. After the molding mold 2 is connected to the mounting base 1, the operator can manually rotate the turntable 807. The fixed connection between the turntable 807 and the bidirectional screw 806 allows the bidirectional screw 806 to rotate accordingly. Both sets of fixing blocks 805 are threadedly connected to the bidirectional screw 806, and the slider 804 and slide groove 7 are slidably connected, allowing the two sets of clamping blocks 801, slider 804, and fixing blocks 805 to be aligned. The mold 2 is wrapped around the top of the mounting base 1 by the insertion design of the protrusion 802 and the limiting groove 5. The operation is simple and the practicality is high. It further strengthens the connection between the mounting base 1 and the mold 2, ensures the stability of the mold during processing, and avoids positional displacement caused by vibration or impact. Then, by setting the sliding groove 2 11 and the sliding block 2 9 as sliding connections, the mounting base 1 and the stamping platform 10 can be quickly connected. Then, by the one-to-one correspondence between the mounting screw 13 and the mounting hole 12, the mounting base 1 and the stamping platform 10 can be quickly fixed, which effectively improves the installation efficiency of the workers.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An installation structure for a lead frame irregular pin forming die, comprising an installation base (1) and a forming die (2) located on the top of the installation base (1), characterized in that: A positioning post (3) is fixedly installed at one end of the mounting base (1) near the forming mold (2). A positioning hole (4) is opened at one end of the forming mold (2) near the mounting base (1). A limiting groove (5) is opened at the center of the top of the mounting base (1). A sliding groove (7) is opened at one end of the top of the mounting base (1) away from the groove (6). A clamping component (8) is provided at the top of the mounting base (1). A slider (9) is fixedly installed at one end of the mounting base (1) away from the forming mold (2). A stamping platform (10) is provided on one side of the mounting base (1) away from the forming mold (2). A sliding groove (11) is opened at equal intervals at one end of the stamping platform (10) near the mounting base (1). An installation hole (12) is opened on one side of the stamping platform (10) away from the sliding groove (11). An installation screw (13) is provided on one side of the top of the mounting base (1) away from the forming mold (2). The clamping assembly (8) includes a clamping block (801), a protrusion (802), a second groove (803), a first slider (804), a fixing block (805), a bidirectional screw (806), and a turntable (807). The top of the mounting base (1) is provided with a clamping block (801). The side of the clamping block (801) near the limiting groove (5) is provided with a protrusion (802). A first groove (6) is provided between the protrusion (802) and the clamping block (801). A fixing block (805) is fixedly installed at the center of the bottom of the clamping block (801). A first slider (804) is fixedly installed at the bottom of the clamping block (801) away from the fixing block (805). A bidirectional screw (806) is threaded on the inner side of the fixing block (805). A turntable (807) is fixedly installed at one end of the bidirectional screw (806).

2. The mounting structure for a lead frame irregular lead forming die according to claim 1, characterized by: The second slide groove (11) and the second slider (9) are slidably connected. The mounting screw (13) corresponds to the mounting hole (12). The mounting base (1) is fixed to the stamping platform (10) by the mounting screw (13).

3. The mounting structure for a lead frame irregular lead forming die according to claim 1, characterized by: The limiting groove (5) has the same cross-section as the protrusion (802), the protrusion (802) can be inserted into the inner side of the limiting groove (5), and the width of the second groove (803) is the same as the diameter of the positioning post (3).

4. The mounting structure for a lead frame irregular lead forming die according to claim 1, characterized by: The cross-section of the slider one (804) and the slide groove one (7) are the same, and the slider one (804) and the slide groove one (7) are slidably connected.

5. The mounting structure for a lead frame irregular lead forming die according to claim 1, characterized by: The clamping block (801), slider one (804) and fixing block (805) are all provided in two identical sets. The two sets of clamping blocks (801), slider one (804) and fixing blocks (805) are symmetrically distributed on the mounting base (1), and the two sets of fixing blocks (805) are threadedly connected to the bidirectional screw (806).

6. The mounting structure for a lead frame irregular lead forming die according to claim 1, characterized by: The positioning post (3) and the positioning hole (4) have the same cross-section, and the positioning post (3) and the positioning hole (4) are connected by plug-in.

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