An IC chip lead length efficient shearing combined device

Abstract

This utility model relates to a high-efficiency cutting device for IC chip lead length, belonging to the field of cold processing in mechanical manufacturing. It includes: a pneumatic slide, a base housing, an adapter block, a spring, a pressure block, a moving cutter head, and a fixed cutter head. The base housing is fixed to a workbench. A pneumatic slide is located on the lower surface of the base housing. Two grooves are formed on the upper surface of the pneumatic slide, and two sliders (left and right) are mounted on the grooves. An adapter block is mounted on the left slider. A spring and a pressure block are mounted on the upper part of the adapter block. A moving cutter head is mounted on the front end of the right side of the adapter block. A fixed cutter head is mounted at the middle position of the upper part of the base housing. The IC chip lead to be cut is positioned at the front end of the fixed cutter head. This utility model can easily and efficiently cut various lengths of domestically produced IC chip leads, meeting the requirement in SMT soldering process specifications that component leads must not deviate longitudinally from the solder pads. This device significantly improves the efficiency of lead cutting. The device has a simple structure and low manufacturing cost.

Description

Technical Field

[0001] This utility model belongs to the field of cold processing in mechanical manufacturing, and specifically relates to a high-efficiency cutting and assembly device for IC chip lead wire length. Background Technology

[0002] IC chip lead cutting is typically accomplished through two main methods: one is returning the device to the manufacturer for cutting using specialized equipment and tooling; the other is manual cutting by SMT soldering operators using tools such as diagonal pliers. The problems with this are: returning the device to the manufacturer results in a long processing cycle, severely impacting research and development progress; manual cutting requires highly skilled operators and is prone to quality issues such as excessive lead coplanarity, lead misalignment, and poor length consistency, significantly affecting SMT soldering quality. Furthermore, existing cutting equipment on the market is insufficient to meet the requirements for rapid cutting of various product types and sizes. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] The technical problem this invention aims to solve is how to provide an efficient IC chip lead wire cutting assembly device to address the issues of long processing cycles and poor quality in IC chip lead wire cutting.

[0005] (II) Technical Solution

[0006] To solve the above-mentioned technical problems, this utility model proposes an efficient cutting and assembly device for IC chip lead length, comprising: a pneumatic slide table 1, a base housing 2, an adapter block 3, a spring 4, a pressure block 5, a moving cutter head 6, and a fixed cutter head 7.

[0007] The base housing 2 is fixed on the workbench. A pneumatic slide 1 is provided on the bottom surface of the base housing 2. Two slide grooves are opened on the upper surface of the pneumatic slide 1. Two sliders, left and right, are provided on the slide grooves. A transition block 3 is installed on the left slider. A spring 4 and a pressure block 5 are installed on the upper part of the transition block 3. A moving cutter head 6 is installed at the front end of the right side of the transition block 3. A fixed cutter head 7 is installed at the middle position of the upper part of the base housing 2.

[0008] Pin 8 of the IC chip to be cut is positioned at the front end of the fixed blade head 7.

[0009] The base housing 2 is rectangular. From bottom to top, the base housing 2 has a boss and a flange outer edge. The size of the boss is the same as the recessed mounting groove of the workbench and is used to be recessed into the lower part of the workbench surface. Several through holes are provided around the outer edge for fixed installation with the workbench 92.

[0010] The base housing 2 has two stepped cavities arranged from bottom to top inside. The first cavity is fully penetrated, and the cavity penetration area is used for the opening and closing stroke of the left and right sliders. The bottom surface of the base housing 2 is provided with several through holes for fixing and connecting the pneumatic slide table 1.

[0011] The second cavity of the base housing 2 is narrower than the adapter block 3 and longer than the maximum stroke of the left and right sliders, for the free movement of the adapter block 3. A rectangular groove is provided on the upper part of the second cavity for fixing the fixed cutter head 7.

[0012] The adapter block 3 is T-shaped with a larger upper part and a smaller lower part. The overall length of the adapter block 3 is smaller than that of the slider on the pneumatic slide table 1, and the width is smaller than that of the first cavity of the base housing 2.

[0013] The lower part of the adapter block 3 is provided with a boss, and the bottom surface of the boss is provided with a set of mounting holes for fixed connection with the left slider. A cuboid is provided on the upper part of the boss, the width of which is smaller than the width of the second cavity of the base housing 2. A recessed step is provided inside the cuboid for installing the buffer spring and the pressure block 5. A set of through holes is provided at the front of the cuboid for connecting the moving cutter head 6.

[0014] The moving cutter head 6 is configured as a cuboid structure and is located at the front end of the adapter block 3. The front end of the moving cutter head 6 is set with a certain composite angle.

[0015] The moving cutter head 6 has a front angle of 0°, a rear angle of 3°, and an inclination angle of 2° between the cutting edge and the horizontal direction.

[0016] The fixed blade head 7 is a cuboid in shape. The front end of the fixed blade head 7 is provided with an open groove of a certain depth for positioning and placing the IC chip 8. The wall thickness of the bottom surface of the open groove and the bottom surface of the fixed blade head 7 is set to 1mm.

[0017] The rear wall of the pressing block 5 is thicker than the front wall, and is used to fix and press the IC chip before shearing.

[0018] (III) Beneficial Effects

[0019] This invention proposes a high-efficiency lead cutting device for IC chips, which can easily and efficiently cut various domestically produced IC chip lead lengths, meeting the requirement in SMT soldering process specifications that component leads must not deviate longitudinally from the solder pads. This device significantly improves lead cutting efficiency. The device has a simple structure and low manufacturing cost. Attached Figure Description

[0020] Figure 1 This utility model Figure 1 This is a three-dimensional structural diagram of the combined device of this utility model;

[0021] Figure 2This is a drawing of domestically produced IC chip components for the combined device of this utility model;

[0022] Figure 3 This is a three-dimensional drawing of the base shell of the combined device of this utility model;

[0023] Figure 4 This is a three-dimensional part drawing of the adapter block of the combined device of this utility model;

[0024] Figure 5 This is a three-dimensional drawing of the pressing block of the combined device of this utility model;

[0025] Figure 6 This is a three-dimensional drawing of the moving cutter head of the combined device of this utility model;

[0026] Figure 7 This is a three-dimensional drawing of the fixed cutter head of the combined device of this utility model;

[0027] Figure 8 This is a schematic diagram of the shearing motion of the combined device of this utility model;

[0028] Figure 9 This is a schematic diagram of the working operation of the combined device of this utility model. Detailed Implementation

[0029] To make the objectives, contents, and advantages of this utility model clearer, the specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0030] This embodiment provides an efficient cutting assembly device for IC chip lead length, including: a pneumatic slide 1, a base housing 2, an adapter block 3, a spring 4, a pressure block 5, a moving cutter head 6, and a fixed cutter head 7;

[0031] The base housing 2 is fixed on the workbench. A pneumatic slide 1 is provided on the bottom surface of the base housing 2. Two slide grooves are opened on the upper surface of the pneumatic slide 1. Two sliders, left and right, are provided on the slide grooves. A transition block 3 is installed on the left slider. A spring 4 and a pressure block 5 are installed on the upper part of the transition block 3. A moving cutter head 6 is installed at the front end of the right side of the transition block 3. A fixed cutter head 7 is installed at the middle position of the upper part of the base housing 2.

[0032] Pin 8 of the IC chip to be cut is positioned at the front end of the fixed blade head 7.

[0033] The base housing 2 is rectangular. From bottom to top, the base housing 2 has a boss and a flange outer edge. The size of the boss is the same as the recessed mounting groove of the workbench and is used to be recessed into the lower part of the workbench surface. Several through holes are provided around the outer edge for fixed installation with the workbench 92.

[0034] The base housing 2 has two stepped cavities arranged from bottom to top inside. The first cavity is fully penetrated, and the cavity penetration area is used for the opening and closing stroke of the left and right sliders. The bottom surface of the base housing 2 is provided with several through holes for fixing and connecting the pneumatic slide table 1.

[0035] The second cavity of the base housing 2 is narrower than the adapter block 3 and longer than the maximum stroke of the left and right sliders, for the free movement of the adapter block 3. A rectangular groove is provided on the upper part of the second cavity for fixing the fixed cutter head 7.

[0036] The adapter block 3 is T-shaped with a larger upper part and a smaller lower part. The overall length of the adapter block 3 is smaller than that of the slider on the pneumatic slide table 1, and the width is smaller than that of the first cavity of the base housing 2.

[0037] The lower part of the adapter block 3 is provided with a boss, and the bottom surface of the boss is provided with a set of mounting holes for fixed connection with the left slider. A cuboid is provided on the upper part of the boss, the width of which is smaller than the width of the second cavity of the base housing 2. A recessed step is provided inside the cuboid for installing the buffer spring and the pressure block 5. A set of through holes is provided at the front of the cuboid for connecting the moving cutter head 6.

[0038] A cuboid-shaped moving cutter head 6 can be mounted on the front end of the adapter block 3, such as a three-dimensional part. Figure 6 The overall hardness of the moving blade is HRC55-60, and a certain composite angle is set at the front end. The specific requirements are: a front angle of 0° to improve the rigidity of the blade, a rear angle of 3° to keep the blade sharp, and a blade angle of 2° to the horizontal direction so that the chip pins contact and cut the blade in sequence, thereby reducing the shearing force.

[0039] The fixed blade head 7 is a cuboid in shape. The front end of the fixed blade head 7 is provided with an open groove of a certain depth for positioning and placing the IC chip 8. The wall thickness of the bottom surface of the open groove and the bottom surface of the fixed blade head 7 is set to 1mm.

[0040] The rear wall of the pressing block 5 is thicker than the front wall, and is used to fix and press the IC chip before shearing.

[0041] Install the pneumatic slide 1, adapter block 3, spring 4, pressure block 5, and moving cutter head 6 sequentially onto the base housing 2. Then install the fixed cutter head 7 onto the base housing 2. Simultaneously adjust the gap between the cutting edges of the moving cutter head 6 and the fixed cutter head 7 at their upper and lower heights to less than 0.03 mm to prevent burrs or sharp edges from forming on the lead wire after shearing. Next, fix the base housing 2 to... Figure 9 The utility model assembly device is now complete on the workbench 92 shown.

[0042] The specific work process is as follows: (Refer to...) Figure 1 , Figure 8 , Figure 9During operation, connect the power supply, push-button switch 93, programmable logic controller (PLC), pneumatic solenoid valve, pneumatic pressure reducing valve, and other components in advance, and install them sequentially. Figure 9 Inside the control box 91, the program is written into the programmable logic controller (PLC) according to the shearing action requirements. The air source and power supply are connected, and then the IC chip 8 is connected, as shown in the three-dimensional structure diagram of the combined device. Figure 1 3D parts Figure 2 The pin is positioned at the front end of the open slot of the fixed cutter head 7. Press the start button 3. The moving cutter head 6, fixed on the adapter block 3, moves to the right according to the PLC control command received by the pneumatic slide table 1, forming a staggered engagement and disengagement with the fixed cutter head 7. At the same time, the pressure block 5 on the adapter block 4 first contacts the IC chip. Under the action of the spring 4, it gradually presses and fixes the IC chip lead, making it easier for the moving cutter head 6 to perform lateral cutting. Then, under the action of the spring 4, it returns to its original position, thus realizing the cutting of the lead of various commonly used domestic IC chips.

[0043] This invention relates to a cutting device for various types and small batches of airfoil lead IC chips. It utilizes compressed air as power and a programmable logic controller (PLC) for motion control. The device is connected via a base housing, a pneumatic slide, an adapter block, a moving cutter head, and a fixed cutter head. Using a mechanical punching and shearing method, the moving cutter head performs a staggered punching and shearing motion to cut the chip leads. The base housing is fixed to a workbench. The pneumatic slide, adapter block, moving cutter head, pressure block, and fixed cutter head are sequentially installed on the base housing. The IC chip leads are placed at the front end of the fixed cutter head. Upon activation, the moving cutter head performs a staggered punching and shearing motion according to the PLC control instructions. This method can cut leads of various commonly used domestic IC chips. It is highly efficient, simple to operate, and can significantly improve the surface mount quality requirements of SMT (Surface Mount Technology).

[0044] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A high-efficiency cutting and combining device for IC chip lead length, characterized in that, include: Pneumatic slide (1), base housing (2), adapter block (3), spring (4), pressure block (5), moving cutter head (6), fixed cutter head (7); The base housing (2) is fixed on the workbench. The bottom surface of the base housing (2) is provided with a pneumatic slide (1). The upper surface of the pneumatic slide (1) has two slide grooves. The slide grooves are provided with two sliders, left and right. The left slider is equipped with a transition block (3). The upper part of the transition block (3) is equipped with a spring (4) and a pressure block (5). The front end of the right side of the transition block (3) is equipped with a moving cutter head (6). The middle position of the upper part of the base housing (2) is equipped with a fixed cutter head (7). The pins of the IC chip (8) to be cut are placed at the front end of the fixed blade (7).

2. The IC chip lead length high-efficiency cutting and assembly device as described in claim 1, characterized in that, The base housing (2) is rectangular. The base housing (2) has a boss and a flange outer edge from bottom to top. The boss is the same size as the sinking installation groove of the workbench and is used to sink into the lower part of the workbench surface. Several through holes are provided around the outer edge for fixed installation with the workbench (92). The base housing (2) has two stepped cavities arranged from bottom to top inside. The first cavity is fully penetrated, and the cavity penetration area is used for the opening and closing stroke of the left and right sliders. The bottom surface of the base housing (2) has several through holes for fixing and connecting the pneumatic slide table (1). The second cavity of the base housing (2) is narrower than the adapter block (3) and longer than the maximum stroke of the left and right sliders, for the free movement of the adapter block (3). A rectangular groove is provided on the upper part of the second cavity for fixing the fixed cutter head (7).

3. The IC chip lead length high-efficiency cutting and assembly device as described in claim 1, characterized in that, The adapter block (3) is T-shaped with a larger upper part and a smaller lower part. The overall length of the adapter block (3) is smaller than that of the slider on the pneumatic slide table (1), and the width is smaller than that of the first cavity of the base housing (2). The lower part of the adapter block (3) is provided with a boss. The bottom surface of the boss is provided with a set of mounting holes for fixed connection with the left slider. A cuboid is provided on the upper part of the boss. The width is smaller than the width of the second cavity of the base housing (2). A recessed step is provided inside the cuboid for installing the buffer spring and the pressure block (5). A set of through holes is provided at the front of the cuboid for connecting the moving cutter head (6).

4. The IC chip lead length efficient shearing assembly apparatus of claim 1, wherein, The moving cutter head (6) is configured as a cuboid structure and is located at the front end of the adapter block (3). The front end of the moving cutter head (6) is set with a certain composite angle.

5. The IC chip lead length efficient shearing assembly apparatus of claim 4, wherein, The moving cutter head (6) has a front angle of 0°, a rear angle of 3°, and an inclination angle of 2° between the cutting edge and the horizontal direction.

6. The IC chip lead length efficient shearing assembly apparatus of claim 1, wherein, The fixed blade head (7) is a cuboid in shape. The front end of the fixed blade head (7) is provided with an open groove of a certain depth for positioning and placing the IC chip (8). The wall thickness of the bottom surface of the open groove and the bottom surface of the fixed blade head (7) is set to 1mm.

7. The IC chip lead length efficient shearing assembly apparatus of claim 1, wherein, The rear wall of the pressing block (5) is thicker than the front wall, and is used to fix and press the IC chip before shearing.

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