Diamond composite material blade forming die

Abstract

The utility model discloses a diamond composite material blade forming die which comprises a pressing ring, a first fixing half block, a second fixing half block, a bottom plate and a mandrel, the first fixing half block and the second fixing half block are spliced to form a hollow cylinder-like structure, and the mandrel is arranged on the inner side of the hollow cylinder-like structure. A circular ring is formed between the hollow cylinder-like structure and the mandrel, a matched bottom plate is arranged at the bottom of the circular ring, a plurality of gaskets with matched sizes are arranged on the circular ring in a sleeving mode through the mandrel, and the outer side of the hollow cylinder-like structure is connected with a pressing ring. According to the blade forming die designed by the utility model, a structure that a plurality of blades are formed by one die is adopted, so that the production efficiency is greatly improved, the production cost of a single piece is reduced, a splicing structure is additionally arranged in the die, the demolding is simple and convenient, and the labor intensity of workers is low. The problems that the blade production efficiency is low and demolding is difficult are solved.

Description

Technical Field

[0001] This utility model belongs to the field of blade molds, specifically relating to a diamond composite material blade molding mold. Background Technology

[0002] Electronic packaging is a crucial component of the semiconductor industry, representing the downstream processes. Its main steps include wafer back grinding, wafer sawing, die attaching, wire bonding, compound molding, compound grinding, compound dicing, marking, and testing. The basic method for compound dicing involves mounting specialized diamond composite blades (hereinafter referred to as blades) on a fully automated precision cutting machine. Following the programmed settings, the blades dice the molded material into numerous individual chips.

[0003] The most common blade shape on the market is a ring structure, specifically as follows: Figure 1 As shown, the material is diamond composite material. The blade manufacturing process can be basically divided into several steps: material preparation, molding, sintering, finishing, marking, and packaging. Among these, the molding process, the molding die is the most critical factor affecting efficiency and cost. Currently, blade molding dies generally produce only one blade structure per mold, resulting in low production efficiency. Furthermore, existing mold structures are difficult to demold, requiring repeated hammering with tools to remove the blade, leading to high labor intensity for workers. Utility Model Content

[0004] The purpose of this invention is to provide a diamond composite material blade molding die, which solves the problems of low blade production efficiency and difficulty in demolding.

[0005] This utility model is achieved through the following technical solution:

[0006] A diamond composite material cutting tool molding die includes a clamping ring, a first fixed half block, a second fixed half block, a base plate, and a mandrel. The first and second fixed half blocks are spliced ​​together to form a hollow quasi-cylindrical structure. The mandrel is disposed inside the hollow quasi-cylindrical structure. A ring is formed between the hollow quasi-cylindrical structure and the mandrel. A matching base plate is disposed at the bottom of the ring. Multiple spacers of matching sizes are sleeved on the ring through the mandrel. The clamping ring is connected to the outside of the hollow quasi-cylindrical structure.

[0007] Furthermore, the first fixed half and the second fixed half are spliced ​​together to form a hollow cylindrical structure, with the upper and lower inner diameters being the same and the lower outer diameter being larger than the upper outer diameter.

[0008] Furthermore, the outer diameter of the clamping ring is the same at the upper and lower ends, while the inner diameter at the upper end is larger than that at the lower end. The inner diameter of the clamping ring is adapted to the outer diameter of the hollow, cylindrical structure.

[0009] Furthermore, the gasket has a ring structure, and the thickness of the gasket is less than the thickness of the base plate.

[0010] Furthermore, the height of the clamping ring is less than the height of the first fixed half block and the second fixed half block.

[0011] Furthermore, the first fixed half block and the second fixed half block have the same structure.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1) Reduce the production cost of blades: The blade forming mold designed in this utility model can produce multiple (usually 2 to 6) blades in one mold through the cooperation of the gasket and the mandrel, which greatly improves the production efficiency and reduces the production cost per piece.

[0014] 2) Reduced molding labor intensity: The blade molding mold designed in this utility model uses a first fixed half block and a second fixed half block spliced ​​together for fixation, which makes demolding simple and convenient and reduces the labor intensity of workers. The clamping ring is placed on the outside of the first fixed half block and the second fixed half block to press them together and prevent them from falling apart. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the diamond composite material blade structure of this utility model.

[0016] Figure 2(a) is a schematic diagram of the overall structure of the blade forming mold of this utility model.

[0017] Figure 2(b) is a schematic diagram of the base plate structure of the blade forming mold of this utility model.

[0018] Figure 3 This is a cross-sectional structural diagram of the blade forming mold of this utility model.

[0019] In the figure, 1-1, clamping ring; 1-2, first fixed half block; 1-3, second fixed half block; 1-4, base plate; 1-5, mandrel; 1-6, gasket; 1-7, mold. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to specific embodiments. The description is for explanation and not limitation of the present invention.

[0021] Referring to Figures 2(a) and 2(b), this utility model provides a diamond composite material blade molding die, which consists of a clamping ring 1-1, a first fixed half block 1-2, a second fixed half block 1-3, a base plate 1-4, a mandrel 1-5, a shim 1-6, and a pressing mold 1-7. The first fixed half block 1-2 and the second fixed half block 1-3 are spliced ​​to form a hollow cylindrical structure. The mandrel 1-5 is provided on the inner side of the hollow cylindrical structure. A ring is formed between the hollow cylindrical structure and the mandrel 1-5. A matching base plate 1-4 is provided at the bottom of the ring. Multiple shims 1-6 of matching size are sleeved on the ring through the mandrel 1-5. The clamping ring 1-1 is connected to the outer side of the hollow cylindrical structure.

[0022] like Figure 3 As shown, the first fixed half-block 1-2 and the second fixed half-block 1-3 are two parts of a cylindrical structure. A cylindrical through hole is machined in the center of the cylindrical structure for positioning the base plate 1-4, the gasket 1-6, and the pressing mold 1-7. The outer cylindrical surfaces of the two fixed half-blocks are both conical structures with a smaller upper end and a larger lower end. This structure serves two purposes: firstly, it guides the assembly and self-locking of the clamping ring 1-1; secondly, it bears pressure, ensuring that the pressing mold 1-7 compacts the product without overflowing during the pressing process.

[0023] The outer side of the clamping ring 1-1 is cylindrical, while the inner side, which matches the fixed half-block, has a conical structure for positioning and clamping.

[0024] The base plate 1-4 has a ring structure, and its central inner hole mates with the mandrel 1-5. Its main function is to seal the lower end of the mold when filling with diamond composite material.

[0025] The mandrel 1-5 is a solid cylinder. When in use, one end is inserted into the center hole of the base plate 1-4.

[0026] The gaskets 1-6 have a ring-shaped structure, with their central inner hole fitting with the mandrel 1-5. Their actual thickness is slightly thinner than the base plate 1-4. The main function of the gaskets 1-6 is to isolate different blades, allowing the molding die to produce multiple blades in a single mold. The number of gaskets can be adjusted according to actual needs; each additional gasket increases the number of blades produced per mold.

[0027] The shape and structure of the compression mold 1-7 are the same as those of the base plate 1-4. Both are ring structures and are used to press the composite material into shape using a press after the diamond composite material is filled.

[0028] How to use this utility model:

[0029] 1) Place the base plate 1-4 on the rotatable operating table;

[0030] 2) Insert the mandrel 1-5 into the center hole of the base plate 1-4;

[0031] 3) Use the first fixed half piece 1-2 and the second fixed half piece 1-3 to place the base plate 1-4 in the middle for fixation;

[0032] 4) Use the clamping ring 1-1 to press the first fixed half block 1-2 and the second fixed half block 1-3 on the outside to prevent them from coming apart;

[0033] 5) Pour the weighed diamond composite material into the cavity formed by the mandrel 1-5, the first fixed half block 1-2, and the second fixed half block 1-3, rotate the operating table, and use a scraper to smooth the diamond composite material.

[0034] 6) Insert the gasket 1-6 into the mandrel 1-5 through the center hole of the gasket 1-6, and let it fall to the bottom along the mandrel 1-5; continue filling and leveling according to step 5);

[0035] 7) Repeat step 6) according to the number of forming blades required for each mold;

[0036] 8) After filling the material, insert the mandrel 1-5 through the center hole of the mold 1-7, and place the mold as a whole on the press to press it into shape;

[0037] 9) After pressing is completed, remove the clamping ring 1-1, the first fixed half block 1-2, the second fixed half block 1-3, and the mandrel 1-5 in sequence, remove the mold 1-7, and take out the blade and the gasket 1-6 in sequence until the last blade is taken out, thus completing the blade forming process.

Claims

1. A diamond composite material blade molding die, characterized in that, The device includes a clamping ring (1-1), a first fixed half-piece (1-2), a second fixed half-piece (1-3), a base plate (1-4), and a mandrel (1-5). The first fixed half-piece (1-2) and the second fixed half-piece (1-3) are spliced ​​together to form a hollow, cylindrical structure. The mandrel (1-5) is provided on the inner side of the hollow, cylindrical structure. A ring is formed between the hollow, cylindrical structure and the mandrel (1-5). A matching base plate (1-4) is provided at the bottom of the ring. Multiple sized gaskets (1-6) are fitted on the ring through the mandrel (1-5). The clamping ring (1-1) is connected to the outer side of the hollow, cylindrical structure.

2. The diamond composite material blade forming mold according to claim 1, characterized in that, The first fixed half-piece (1-2) and the second fixed half-piece (1-3) are spliced ​​together to form a hollow cylindrical structure with the same inner diameter at the top and bottom, and the outer diameter at the bottom being larger than that at the top.

3. The diamond composite material blade forming mold according to claim 2, characterized in that, The outer diameter of the clamping ring (1-1) is the same at the upper and lower ends, while the inner diameter at the upper end is larger than that at the lower end. The inner diameter of the clamping ring (1-1) is adapted to the outer diameter of the hollow cylindrical structure.

4. The diamond composite material blade forming mold according to claim 1, characterized in that, The gasket (1-6) has a ring structure, and the thickness of the gasket (1-6) is less than the thickness of the base plate (1-4).

5. The diamond composite material blade forming mold according to claim 1, characterized in that, The height of the clamping ring (1-1) is less than the height of the first fixed half block (1-2) and the second fixed half block (1-3).

6. The diamond composite material blade forming mold according to claim 1, characterized in that, The first fixed half block (1-2) and the second fixed half block (1-3) have the same structure.

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