An adjustable positioning pin device for flash trimming

Abstract

The application discloses a cut-bead forming adjustable positioning pin device, and belongs to the cut-bead forming field.The cut-bead forming adjustable positioning pin device comprises a fixed base, an adjustable positioning mechanism for positioning different kinds of pin chips is fixedly arranged on the fixed base, the adjustable positioning mechanism comprises a positioning frame fixedly installed on the fixed base, a clamping groove for clamping a chip body is arranged at a central position of the positioning frame, and four adjusting sliding grooves are arranged at four edges of the positioning frame.The cut-bead forming adjustable positioning pin device does not need to disassemble and replace the whole positioning module like a fixed positioning pin, an operator only needs to slide the positioning pin and lock by using a clamping assembly, so that different pin pitch chips can be quickly adapted, the adjusting time is greatly shortened, the downtime caused by replacing the positioning module is reduced, and therefore the overall production efficiency of different batches of chip cut-bead forming is improved.

Description

Technical Field

[0001] This application relates to the field of tendon cutting and forming technology, specifically an adjustable positioning pin device for tendon cutting and forming. Background Technology

[0002] Lead cutting and forming is a key technology in semiconductor manufacturing that uses physical cutting and forming processes to process wafers or frame strips into independent chips and complete lead shaping. Its core lies in achieving high-precision and high-efficiency separation and forming operations.

[0003] Modern semiconductor manufacturing is characterized by a trend towards high-variety, low-batch production. The same equipment often requires frequent switching between different product models, especially since different chip models have varying pin counts and pitches. Fixed positioning pins necessitate complete disassembly and replacement of different positioning modules, which is time-consuming and labor-intensive, resulting in low overall production efficiency for chip lead cutting and forming across different batches.

[0004] Therefore, this application provides an adjustable positioning pin device for rib cutting and forming to solve the above problems. Utility Model Content

[0005] This application provides an adjustable positioning pin device for rib cutting and forming, which aims to solve the existing problems mentioned in the background art.

[0006] To achieve the above objectives, this application provides the following technical solution: an adjustable positioning pin device for lead cutting and forming, comprising a fixed base, on which an adjustable positioning mechanism for positioning chips with different pin pitches is fixedly disposed. The adjustable positioning mechanism includes a positioning frame fixedly mounted on the fixed base, a locking groove formed at the center of the positioning frame for engaging the chip body, four adjusting grooves formed on the four sides of the positioning frame, a plurality of positioning pins inserted into the adjusting grooves and slidable to adapt to different pin pitches, and four sets of clamping components disposed inside the four sides of the positioning frame for locking the positioning pins. Each positioning pin includes a pin isolation block and a rectangular pin rod fixedly connected to the bottom of the pin isolation block for insertion into the adjusting groove and for being locked by the clamping components. In this way, unlike fixed positioning pins, there is no need to disassemble and replace the entire positioning module. Operators can quickly adapt to chips with different pin pitches simply by sliding the positioning pins and locking them using the clamping components, greatly shortening the adjustment time and reducing downtime caused by replacing the positioning module, thereby improving the overall production efficiency of lead cutting and forming of different batches of chips.

[0007] Preferably, the clamping assembly includes two clamping rods disposed on both sides of the adjusting slide groove, close to or far from each other, for clamping the rectangular pin; a bidirectional lead screw rotatably connected to the working groove at the four corners of the positioning frame and screwed to the clamping rods at both ends; and a miniature motor fixedly installed in the working groove and whose output shaft is connected to the bidirectional lead screw.

[0008] Preferably, both ends of the clamping rod are provided with the bidirectional lead screw and the micro motor.

[0009] Preferably, the top opening of each working groove is fitted with a cap.

[0010] Preferably, the positioning frame has clamping grooves on all four sides that communicate with the adjusting slide groove to accommodate the movement of the clamping rod.

[0011] Preferably, the center of the locking groove has a positioning suction cup for adsorbing the bottom surface of the chip body, and the opening edge of the positioning suction cup has a sealing ring.

[0012] Preferably, rubber pads for contact between the clamping rod and both sides of the rectangular pin are embedded.

[0013] Preferably, the positioning pin is equipped with a variety of pin isolation blocks of different widths to correspond to different pin pitches.

[0014] This adjustable positioning pin device for lead cutting and forming eliminates the need to disassemble and replace the entire positioning module as required by fixed positioning pins. Operators can quickly adapt to chips with different pin pitches simply by sliding the positioning pin and locking it with the clamping assembly. This greatly shortens the adjustment time and reduces downtime caused by replacing the positioning module, thereby improving the overall production efficiency of lead cutting and forming for different batches of chips. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of an adjustable positioning pin device for rib cutting and forming. Figure 2 A schematic diagram of the top surface of the positioning frame of an adjustable positioning pin device for rib cutting and forming is shown. Figure 3 A schematic diagram of the positioning pin structure of an adjustable positioning pin device for rib cutting and forming; Figure 4 for Figure 2 Enlarged structural diagram at point A in the middle.

[0016] In the picture: 1. Fixed base; 2. Adjustable positioning mechanism; 21. Positioning frame; 211. Adjusting slide; 212. Clamping groove; 213. Working groove; 214. Cover; 22. Engaging groove; 23. Locating pin; 231. Pin isolation block; 232. Rectangular pin; 233. Rubber pad; 24. Clamping assembly; 241. Clamping rod; 242. Two-way lead screw; 243. Miniature motor; 25. Positioning suction cup; 251. Sealing ring. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0018] This embodiment provides an adjustable positioning pin device for rib cutting and forming, such as... Figures 1-4 As shown, the adjustable positioning pin device for bead cutting includes a fixed base 1. An adjustable positioning mechanism 2 for positioning different types of pin chips is fixedly installed on the fixed base 1. The adjustable positioning mechanism 2 includes a positioning frame 21 fixedly installed on the fixed base 1, a locking groove 22 opened at the center of the positioning frame 21 for locking the chip body, four adjusting slide grooves 211 opened on the four sides of the positioning frame 21, a number of positioning pins 23 inserted into the adjusting slide grooves 211 and slidable to adapt to different pin spacings, and four sets of clamping components 24 arranged inside the four sides of the positioning frame 21 for locking the positioning pins 23. The positioning pin 23 includes a pin isolation block 231 and a rectangular pin 232 fixedly connected to the bottom of the pin isolation block 231 for inserting into the adjusting slide groove 211 and for being locked by the clamping components 24.

[0019] In use, first, place the chip to be cut and shaped into a chip in the engaging slot 22 of the positioning frame 21 to initially fix the chip body. Then, according to the number and spacing of the chip pins, the operator manually pushes the positioning pin 23 to slide in the adjusting slide 211. For example, if the chip pin spacing is large, slide the positioning pin 23 outward; if the pin spacing is small, slide the positioning pin 23 inward until the pin isolation block 231 of the positioning pin 23 reaches the position that can accurately isolate each pin. Finally, activate the clamping assembly 24, which locks the rectangular pin 232 inserted into the adjusting slide 211, fixing the positioning pin 23 in the current position, completing the positioning adjustment of chips with different pin spacings, and then the cutting and shaping operation can be performed.

[0020] Specifically, the clamping assembly 24 includes two clamping rods 241 arranged on both sides of the adjusting slide groove 211, close to or far from each other, for clamping the rectangular pin 232; a bidirectional lead screw 242 rotatably connected to the working groove 213 at the four corners of the positioning frame 21, with both ends screwed to the clamping rods 241; and a micro motor 243 fixedly installed in the working groove 213, with its output shaft connected to the bidirectional lead screw 242. Both ends of the clamping rods 241 are provided with the bidirectional lead screw 242 and the micro motor 243. When the micro motor 243 is started, its output shaft drives the bidirectional lead screw. When 242 rotates, since the threads at both ends of the bidirectional lead screw 242 are in opposite directions, the two clamping rods 241 screwed to the bidirectional lead screw 242 will move closer or further apart along the bidirectional lead screw 242. When it is necessary to lock the positioning pin 23, the micro motor 243 drives the bidirectional lead screw 242 to rotate, causing the two clamping rods 241 to move closer together, thereby clamping the rectangular pin 232 inserted into the adjusting slide groove 211. When it is necessary to adjust the position of the positioning pin 23, the micro motor 243 drives the bidirectional lead screw 242 to rotate in the opposite direction, causing the two clamping rods 241 to move further apart, thus releasing the rectangular pin 232.

[0021] It should be noted that the top opening of the working groove 213 is fitted with a cover 214; the cover 214 fitted with the top opening of the working groove 213 is mainly used to prevent external dust, impurities, etc. from entering the working groove 213, so as to avoid these impurities from affecting the rotation of the bidirectional lead screw 242 and the normal operation of the micro motor 243, and to ensure the stable operation of the clamping assembly 24.

[0022] Understandably, the four sides of the positioning frame 21 are provided with clamping grooves 212 that communicate with the adjusting slide groove 211 to accommodate the movement of the clamping rod 241; the clamping grooves 212 provide space for the movement of the clamping rod 241 under the drive of the bidirectional lead screw 242, so that the clamping rod 241 can smoothly move closer or further away from each other to complete the clamping or releasing action of the rectangular pin 232.

[0023] Furthermore, the center of the locking groove 22 has a positioning suction cup 25 for adsorbing the bottom surface of the chip body, and the opening edge of the positioning suction cup 25 has a sealing ring 251. When the chip body is placed in the locking groove 22, the positioning suction cup 25 will contact the bottom surface of the chip body, and the chip body will be adsorbed and fixed in the locking groove 22 by the negative pressure inside the suction cup. The sealing ring 251 on the opening edge of the positioning suction cup 25 can enhance the sealing between the suction cup and the bottom surface of the chip body, prevent air leakage, and ensure the adsorption effect.

[0024] Furthermore, rubber pads 233 for contact between the clamping rod 241 are embedded on both sides of the rectangular pin 232; the rubber pads 233 increase the friction between the clamping rod 241 and the rectangular pin 232, making the clamping rod 241 clamp the rectangular pin 232 more firmly, preventing the positioning pin 23 from loosening due to external force during the rib cutting and forming process, and further ensuring the stability of positioning.

[0025] Furthermore, the positioning pin 23 is equipped with various pin isolation blocks 231 of different widths to correspond to different pin pitches. When processing chips with different pin pitches, the operator can select the appropriate width of the pin isolation block 231 and assemble it with the rectangular pin 232 according to the actual pin pitch of the chip. Then, the assembled positioning pin 23 is inserted into the adjusting slide 211 for positioning adjustment. The operator only needs to select the appropriate pin isolation block 231 according to the chip pin pitch for replacement. The operation is simple and quick, and the adjustment of the positioning device can be completed in a short time, further improving production efficiency.

[0026] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. An adjustable positioning pin device for rib cutting and forming, comprising a fixed base (1), characterized in that: An adjustable positioning mechanism (2) for positioning different types of pin chips is fixedly provided on the fixed base (1). The adjustable positioning mechanism (2) includes a positioning frame (21) fixedly installed on the fixed base (1), a locking groove (22) opened in the center of the positioning frame (21) for locking the chip body, four adjustment slides (211) opened on the four sides of the positioning frame (21), a number of positioning pins (23) inserted into the adjustment slides (211) and slidable to adapt to different pin spacings, and four sets of clamping components (24) set inside the four sides of the positioning frame (21) for locking the positioning pins (23). The positioning pin (23) includes a pin isolation block (231) and a rectangular pin (232) fixedly connected to the bottom of the pin isolation block (231) for inserting into the adjustment slide (211) and for being locked by the clamping components (24).

2. The adjustable positioning pin device for rib cutting and forming according to claim 1, characterized in that: The clamping assembly (24) includes two clamping rods (241) arranged on both sides of the adjusting slide (211) close to or far from each other for clamping the rectangular pin (232), a bidirectional lead screw (242) rotatably connected in the working groove (213) at the four corners of the positioning frame (21) and screwed to the clamping rods (241) at both ends, and a micro motor (243) fixedly installed in the working groove (213) and whose output shaft is connected to the bidirectional lead screw (242).

3. The adjustable positioning pin device for rib cutting and forming according to claim 2, characterized in that: Both ends of the clamp (241) are provided with the bidirectional lead screw (242) and the micro motor (243).

4. The adjustable positioning pin device for rib cutting and forming according to claim 3, characterized in that: The top opening of each working groove (213) is fitted with a cover (214).

5. The adjustable positioning pin device for rib cutting and forming according to claim 4, characterized in that: The positioning frame (21) has clamping grooves (212) on all four sides that communicate with the adjusting slide groove (211) to accommodate the movement of the clamping rod (241).

6. The adjustable positioning pin device for rib cutting and forming according to claim 5, characterized in that: The center of the locking groove (22) has a positioning suction cup (25) for adsorbing the bottom surface of the chip body, and the opening edge of the positioning suction cup (25) has a sealing ring (251).

7. The adjustable positioning pin device for rib cutting and forming according to claim 6, characterized in that: Both sides of the rectangular pin (232) are fitted with rubber pads (233) for contact with the clamp (241).

8. The adjustable positioning pin device for rib cutting and forming according to claim 7, characterized in that: The positioning pin (23) is equipped with a variety of pin isolation blocks (231) of different widths to correspond to different pin pitches.

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