A cutting jig for cutting a convex product

Abstract

The utility model relates to the jig field for chip production relates to a cutting jig for cutting convex product, the utility model discloses: base, support plate and platform are equipped with airflow cavity in base inside, the through vacuum adsorption hole no.

Description

Technical Field

[0001] This utility model relates to the field of jigs for chip manufacturing, and specifically to a cutting jig for cutting convex products. Background Technology

[0002] In chip packaging manufacturing, the surface of conventional packaged products is usually planar, allowing for stable clamping and cutting using standard cutting fixtures. However, some special customers' products have irregular shapes where the molded body protrudes from the substrate, making it difficult for traditional cutting fixtures to effectively position and support them. For such convex products, existing technology typically relies on stamping equipment for rigid cutting. However, during stamping, the uneven surface of the product can cause uneven stress on the cutting edge, increasing tool wear costs and potentially affecting cutting accuracy. Furthermore, conventional tape saws or jig saws cannot stably hold and support the protruding parts of convex products, limiting their direct application and leading to restricted equipment selection and high production costs. Utility Model Content

[0003] This invention provides a cutting fixture for cutting convex products to address the problems of existing technologies.

[0004] The objective of this utility model can be achieved through the following technical solution: A cutting fixture for cutting convex products includes: a base, a support plate, and a platform. The base has an airflow cavity inside, and a through vacuum adsorption hole in the middle of the airflow cavity. The upper end of the base has a guide pin, and the support plate is sleeved on the guide pin. The support plate has through holes arranged in an array at intervals. The platform is sleeved on the guide pin and located at the upper end of the support plate. The platform has a product cavity inside, and through holes arranged in an array at intervals inside the product cavity, coaxial with and communicating with the through holes. The through holes have a T-shaped cross-section. A rubber support block is matched inside the through holes. The rubber support block is narrower at the top and wider at the bottom and protrudes above the through holes. The rubber support block has a vacuum adsorption hole inside, and the support plate clamps and fixes the rubber support block in the through holes.

[0005] In a further improvement, the second vacuum adsorption hole is set to be the same size as the first through hole.

[0006] In a further improvement, each side of the second through hole is provided with an upward slot, the slot does not penetrate to the surface of the product cavity, and the side end of the rubber support block is provided with a matching slot insert.

[0007] As a further improvement, the guide pins are symmetrically arranged in four sets.

[0008] In a further improvement, the platform, support plate, and base are sequentially fixed together by bolts, and several groups of bolts are symmetrically arranged.

[0009] Compared with the prior art, the advantages of this utility model for cutting convex products are as follows:

[0010] The substrate of the convex product is elastically supported by the protruding part of the rubber support block, and the encapsulated body is fixed through vacuum adsorption holes. The two form a uniform flat surface, solving the problem that traditional jigs cannot clamp irregular shapes. During cutting, the product is subjected to uniform force, and the elastic buffering effect of the rubber support block reduces the impact of cutting vibration on the cutting tool, avoiding the risk of tool breakage caused by rigid contact. In addition, this jig is compatible with conventional cutting equipment, eliminating the need for dedicated stamping equipment and directly utilizing existing factory resources, significantly reducing equipment procurement costs and production losses. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the present invention.

[0012] Figure 2 This is a schematic diagram of the structure of the exploded view of this utility model.

[0013] Figure 3 This is a schematic diagram of the internal structure of the present invention.

[0014] Figure 4 for Figure 3 Schematic diagram of the enlarged part

[0015] In the diagram, 1-base, 11-airflow cavity, 12-vacuum adsorption hole one, 13-guide pin, 2-support plate, 21-through hole one, 3-platform, 31-product cavity, 32-through hole two, 321-slot, 33-rubber support block, 331-insertion block, 34-vacuum adsorption hole two, 4-bolt. Detailed Implementation

[0016] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; unless otherwise expressly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, for example, they can refer to fixed connections or detachable connections, etc. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0017] The following is a description of the embodiments and appendices. Figures 1-4 The technical solution of this utility model will be further described below.

[0018] Example 1

[0019] A cutting fixture for cutting convex products includes: a base 1, a support plate 2, and a platform 3. The base 1 has an airflow cavity 11 inside, and a through vacuum adsorption hole 12 in the middle of the airflow cavity 11. The upper end of the base 1 has a guide pin 13. The support plate 2 is sleeved on the guide pin 13. The support plate 2 has through holes 21 arranged in an array at intervals. The platform 3 is sleeved on the guide pin 13 and located at the upper end of the support plate 2. The platform 3 has a product cavity 31 inside, and through holes 32 arranged in an array at intervals inside the product cavity 31, coaxial with and communicating with the through holes 21. The through holes 32 have a T-shaped cross section. A rubber support block 33 is matched inside the through holes 32. The rubber support block 33 is narrower at the top and wider at the bottom and protrudes above the through holes 32. The rubber support block 33 has a vacuum adsorption hole 34 inside. The support plate 2 clamps and fixes the rubber support block 33 in the through holes 32.

[0020] like Figures 1-4 As shown, the core structure of the cutting fixture provided in this embodiment includes a base, a support plate, and a platform. It solves the clamping problem of convex products by combining vacuum adsorption with elastic support.

[0021] The airflow chamber inside the base is connected to an external vacuum pump through vacuum adsorption hole one, forming a vacuum power source. Through hole one on the support plate is coaxially connected to through hole two on the platform, transmitting the vacuum to vacuum adsorption hole two inside the rubber support block. The rubber support block is made of anti-static rubber material, and its internal vacuum adsorption hole two can generate an adsorption force on the protruding plastic sealant on the product, ensuring that the plastic sealant stably adheres to the surface of the rubber support block.

[0022] The rubber support block is designed with a T-shaped cross-section that is narrower at the top and wider at the bottom, matching the T-shaped structure of the second through-hole of the platform. The upper end of the support block protrudes beyond the "barrier" of the second through-hole to support the substrate of the product. Due to the elasticity of the rubber material, it can adapt to the height of the substrate, allowing the substrate of the convex product and the molding compound to form a flat clamping plane together under vacuum adsorption.

[0023] The support plate is fitted onto the guide pin of the base, and the platform, positioned by the guide pin, covers the support plate. The three are then secured with bolts. The support plate clamps the rubber support block, ensuring its stable embedding within the platform's through-hole two, thus guaranteeing the sealing of the vacuum adsorption path and the stability of the support structure.

[0024] Through the above design, the substrate of the convex product is elastically supported by the protruding part of the rubber support block, and the encapsulated body is fixed through the vacuum adsorption hole 2. The two form a uniform flat surface, solving the problem that traditional jigs cannot clamp irregular shapes. During cutting, the product is subjected to uniform force, and the elastic buffering effect of the rubber support block can reduce the impact of cutting vibration on the cutting tool, avoiding the risk of tool breakage caused by rigid contact. In addition, this jig is compatible with conventional cutting equipment (such as tape saw or jig saw), without relying on special stamping equipment, directly utilizing existing factory resources, significantly reducing equipment procurement costs and production losses.

[0025] As a further preferred embodiment, the second vacuum adsorption hole 34 is set to the same size as the first through hole 21. The second vacuum adsorption hole and the first through hole of the support plate have the same size, ensuring no abrupt changes in cross-section during vacuum airflow conduction and reducing pressure loss. This equal-size design ensures that the vacuum adsorption force is evenly applied to the contact surface between the rubber support block and the encapsulated body, avoiding insufficient local adsorption force or airflow turbulence caused by differences in pore size.

[0026] As a further preferred embodiment, each side of the second through hole 32 is provided with an upward-facing slot 321. The slot 321 does not penetrate into the surface of the product cavity 31. The side end of the rubber support block 33 is provided with an insertion block 331 that matches the slot 321. The platform through hole 2 has an upward-facing slot (not penetrating the surface of the product cavity), and the insertion block at the side end of the rubber support block is embedded in the slot, forming a mechanical limiting structure. This design restricts the circumferential rotation and axial displacement of the rubber support block, and can maintain its relative position with the second through hole even under cutting vibration environment, ensuring the positional accuracy of the support point, avoiding damage to the flatness of the product surface caused by the displacement of the support block, thereby ensuring cutting accuracy and reducing the risk of adsorption failure.

[0027] As a further preferred embodiment, four sets of guide pins 13 are symmetrically arranged. The guide pins are symmetrically distributed at the upper end of the base, and the support plate and platform are positioned by the guide pin sleeves. The four sets of symmetrical structures form a stable four-point support, ensuring that the support plate and platform are accurately aligned during installation and avoiding component tilting or eccentricity caused by single-point or asymmetrical support.

[0028] In a further preferred embodiment, the platform 3, support plate 2, and base 1 are sequentially fixedly connected by bolts 4, with several sets of bolts 4 symmetrically arranged. The platform, support plate, and base are fastened together by multiple sets of symmetrically distributed bolts, forming a rigid connection. The symmetrical layout ensures that the fastening force is evenly applied to the contact surfaces of each component, avoiding deformation or sealing failure caused by excessive local pressure.

[0029] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A cutting fixture for cutting convex products, characterized in that, include: The system comprises a base, a support plate, and a platform. The base has an airflow cavity inside, with a through vacuum adsorption hole in the center. A guide pin is located at the top of the base, and the support plate is fitted onto the guide pin. The support plate has through holes spaced in an array. The platform is fitted onto the guide pin and is located at the top of the support plate. The platform has a product cavity inside, with through holes spaced in an array inside the product cavity, coaxial with and connected to the through holes. The through holes have a T-shaped cross-section, and a rubber support block is fitted inside each through hole. The rubber support block is narrower at the top and wider at the bottom, protruding above the through hole. The rubber support block has a vacuum adsorption hole inside, and the support plate clamps and fixes the rubber support block within the through hole.

2. A cutting fixture for cutting convex products according to claim 1, characterized in that, The vacuum adsorption hole two is set to be the same size as the through hole one.

3. A cutting fixture for cutting convex products according to claim 1, characterized in that, Each side of the second through hole is provided with an upward slot, the slot does not penetrate to the surface of the product cavity, and the side end of the rubber support block is provided with a matching slot insert.

4. A cutting fixture for cutting convex products according to claim 1, characterized in that, The guide pins are arranged in four sets symmetrically.

5. A cutting fixture for cutting convex products according to claim 1, characterized in that, The platform, support plate, and base are sequentially fixed together by bolts, and several groups of bolts are symmetrically arranged.

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