Elastic deformation adjusting device for frame plate in FCT tester

A technology of elastic deformation and adjustment device, which is applied in the field of FCT testing machine, and can solve problems such as the deformation of the middle frame plate that has not been paid attention to

Pending Publication Date: 2020-11-17
P&R MEASUREMENT INC
View PDF2 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both of the above two patent documents involve FCT testing machines, but neither pay attention to the deformation of the middle frame plate

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Elastic deformation adjusting device for frame plate in FCT tester
  • Elastic deformation adjusting device for frame plate in FCT tester
  • Elastic deformation adjusting device for frame plate in FCT tester

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084] Example 1: Dynamic adjustment device for elastic deformation of frame plate in FCT testing machine

[0085] Such as Figure 1-2 As shown, the present invention provides a dynamic adjustment device for the elastic deformation of the middle frame plate of an FCT testing machine, which mainly consists of the following 8 parts, including: a pressing plate module 1, a needle carrier module 2, a strain gauge 3, and a middle frame Plate module 4, dynamic control module 5, tank chain 6, entry and exit drive module 7 and up and down drive module 8.

[0086] Such as Figure 3-4 As shown, the pressure plate module provided by the present invention is used to transmit the force of the upper and lower drive modules to the tested PCB and the carrier board, and reasonably suppress the stroke of the tested PCB, so that the needle plate probe contacts the PCB test point, and realizes the signal Interconnection; the pressing plate module is mainly composed of the following five parts, ...

Embodiment 2

[0102] Example 2: Dynamic adjustment method for elastic deformation of frame plate in FCT testing machine

[0103] Such as Figure 17 As shown, this embodiment belongs to the real-time dynamic adjustment closed-loop system. It can realize real-time monitoring of the deformation of the middle frame plate, dynamically adjust the air pressure of the pressure regulating valve, prevent the transitional deformation of the middle frame plate, control its reasonable deformation, and prevent the stroke of the probe from being reduced due to the transitional deformation of the middle frame plate. Poor contact has a positive effect on improving the test stability of the tested PCB.

[0104] The dynamic adjustment method of the elastic deformation of the frame plate in the FCT testing machine (that is, the closed-loop control theory algorithm) is as follows:

[0105] Step 1 Measurement and solution process (stress analysis module):

[0106] First, the strain gauges will be pasted equid...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to an elastic deformation adjusting device for a middle frame plate of an FCT tester. The elastic deformation adjusting device comprises a pressing plate module, a needle carrierplate module, a strain gauge, a middle frame plate module, a dynamic control module and a driving module. The middle frame plate module is installed on an in-out driving module, strain gauges are installed on the middle frame plate module at equal intervals, and the strain gauges are connected with the stress analysis module to provide real-time deformation data for the stress analysis module. The dynamic control module uses the stress analysis module to collect middle frame plate module deformation real-time data input by the strain gauges, and controls the deformation of the middle frame plate module by adjusting upper and lower driving modules. According to the invention, the deformation quantity of the middle frame plate can be monitored in real time, the air pressure of a pressure regulating valve is dynamically regulated, and poor contact of a probe caused by excessive deformation of the middle frame plate is prevented.

Description

technical field [0001] The invention relates to the technical field of FCT testing machines, in particular to a device for adjusting elastic deformation of a frame plate in an FCT testing machine. Background technique [0002] With the rapid development of electronic product technology and the increasing requirements for process efficiency and yield, the electronics industry has gradually begun to strengthen the development and optimization of product functional testing equipment while improving the process efficiency of electronic products. Among them, the demand for functional testing of electronic product motherboards is the most urgent. [0003] The structure of the traditional FCT testing machine uses the cylinder to drive the pressure plate to press down, so that the needle carrier plate probe contacts the product test point, and realizes the interactive conduction of product signals. The force of driving the cylinder up and down is transmitted to the needle carrier p...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01R31/28G01B7/16
CPCG01B7/18G01R31/2848
Inventor 莫宗杰杨兴华莫荣键李宇明王飞
Owner P&R MEASUREMENT INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap