Die Test Pressing-Down Apparatus With Spring Alignment

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Solution Overview

Problem

Existing die testing apparatuses face challenges in ensuring mold-closed flatness between the upper cover plate and the lower supporting plate, affecting test accuracy and data consistency.

Innovation Solution

A die test pressing-down apparatus is designed with a support frame that moves vertically, featuring a pressing-down block connected through an installation plate with strip-shaped through holes and protruding strips. This configuration uses springs to maintain mold closing pressure, ensuring a flat contact between the pressing-down block and the part to-be-pressed.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the upper cover plate is pressed tightly to the lower supporting plate to realize electrical connection, then the test screening can be completed, but the mold-closed flatness cannot be ensured, affecting test accuracy and data consistency

Engineering Contradiction:
Improvetest accuracyVSAvoidmold-closed flatness
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The patent changes the physical state of the pressing mechanism by introducing springs that can elastically deform, allowing the system to transition from a rigid fixed-position structure to a flexible adaptive structure. The springs enable the upper cover plate to maintain constant pressing force while accommodating variations in die thickness, thereby ensuring both mold-closed flatness and reliable electrical connection.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent transforms the static pressing mechanism into a dynamic one by incorporating springs that can compress and extend. This dynamic structure allows the pressing-down block to automatically adjust its position based on the die thickness, maintaining consistent contact pressure and flatness throughout the testing process, thus resolving the contradiction between connection reliability and manufacturing precision.

Inventive Principle:
Principle #15Dynamics

2Device complexity

If a fixed position pressing structure is used, then the structure is simple, but slight deviations cannot be absorbed, affecting mold closing flatness

Engineering Contradiction:
Improvepressing structureVSAvoidmold closing flatness
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The patent introduces springs that change their compression parameter in response to die thickness variations. This allows the pressing structure to absorb deviations while maintaining simple overall design. The springs act as compliant elements that automatically compensate for manufacturing tolerances without requiring complex adjustment mechanisms.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent incorporates springs in advance to cushion against position deviations before they affect the mold closing flatness. The springs are pre-installed in the pressing-down block to provide elastic compensation, preventing the transmission of positioning errors to the contact interface between the upper cover plate and lower supporting plate.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

3Device complexity

If the pressing-down block is directly fixed to the support frame, then the structure is simple, but the horizontal reference cannot be converted to the part to-be-pressed

Engineering Contradiction:
Improveconnection structureVSAvoidreference alignment
Core Design Contradiction:
Device complexityVSMeasurement precision

Solution Approach 1:

The patent uses springs to create a dynamic connection between the pressing-down block and support frame, enabling the block to move horizontally and align with the part to-be-pressed. This dynamic alignment capability allows the reference frame to be transferred from the support frame to the part itself, improving measurement precision without significantly increasing structural complexity.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The spring-connected pressing-down block automatically performs self-alignment with the part to-be-pressed through elastic deformation. The structure uses its own elasticity to achieve reference conversion, eliminating the need for external adjustment mechanisms or complex positioning systems.

Inventive Principle:
Principle #25Self-service

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The apparatus achieves improved mold closing flatness, enhancing test accuracy and data consistency by converting the horizontal reference of the pressing-down block to the part to-be-pressed and absorbing slight deviations with springs.

Implementation Method 1

absorbing slight deviations with springs

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS12216156B2Chip test pressing-down apparatus and formation method thereof
Publication Date: 2025.02.04 STELIGHT INSTR CO LTD
  • US12216156B2 patent drawing
  • US12216156B2 patent drawing
  • US12216156B2 patent drawing

AI summary

The present disclosure includes a die test pressing-down apparatus and a formation method. The die test pressing-down apparatus includes a support frame capable of moving along a vertical direction; and a pressing-down block installed on the support frame. A part to-be-pressed is disposed directly below the pressing-down block. The pressing-down block is connected to the support frame through an installation plate; a strip-shaped through hole is formed at an upper surface of the support frame; a first protruding strip is at each lower portion of two opposite inner walls of the strip-shaped through hole; a corresponding second protruding strip is at each upper portion of two opposite side surfaces of the installation plate; and a side of a strip-shaped block is fixedly connected to the upper surface of the support frame, and another side of the strip-shaped block is connected to the second protruding strip through at least two springs.