Fastener installing tool

A technology for installing tools and fasteners, applied in the direction of threaded fasteners, connecting components, screws, etc., can solve the problems of time-consuming and high cost, expensive and difficult realization of quenching and tempering, and reduce the molded load , Elimination of complexity, the effect of high-intensity capabilities

Active Publication Date: 2011-01-19
胡克国际公司
View PDF14 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This further increases the cost and complexity of manufacturing the fastener
For example, two such heat treatment methods include: stress relief annealing and quenching and tempering; achieving consistent desired hardness by stress relief annealing is difficult to achie

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
  • Fastener installing tool
  • Fastener installing tool
  • Fastener installing tool

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0075] Example 1

[0076] The purpose of the first experiment is to determine whether a collar made in HS5CF-R12 size can be used as a cold heading collar to meet the Grade 8 value. The HS5CF-R12 fastener is a commercially available Grade 5 molded type fastener manufactured by Huck International, Inc. of Waco, Texas, USA.

[0077] The experiment involves testing the outer diameter (OD), hardness, compression load, tensile strength and preload of a standard quenched and tempered Grade 8 collar, and compares it with a Grade 5 collar such as a cold headed collar. The results are shown in Table 1 below in terms of quantity.

[0078] Table 1: Grade 5 collars such as cold heading collars

[0079]

[0080] As shown in Table 1, the two collars "A" and "B" have a molded load that is 18% lower than the current standard HS8CF-R12 collar, and both meet the minimum industrial tensile strength and preload requirements of Grade 5. Experiments revealed that the collar such as the cold heading col...

Example Embodiment

[0084] Example 2

[0085] The second experiment started with the desire to develop an economical way to improve the life of safety tools and to reduce the cost of manufacturing Grade 8 collars. Specifically, the goal of the experiment is to determine whether a thinner wall, such as a cold-headed collar, can increase the snub load, reduce the compression load and maintain the same tensile strength as the standard quenched and tempered collar And preload. The stopping load is the load of the collar 14 initially engaging the pin locking grooves 26, 26a, 26b, 26c, 26d. After this time, because the collar 14 is stuck on the pins 12, 12a, 12b, 12c, 12d, the plate (for example, the work pieces 18, 20; 18a, 20a; 18b, 20b; 18c, 20c) is restricted in drawing out the gap. If the gap is maintained after the snub, the clamping force is reduced because instead of the tension pins 12, 12a, 12b, 12c, 12d, the collar elongation becomes the gap disappear.

[0086] HSCF-R20 made from the same pr...

Example Embodiment

[0102] Example 3

[0103] In addition to the results of the first two experiments, the third experiment also tested the effect of increasing the hardness of the collar while reducing the thickness of the collar wall, in an attempt to find the best balance between high strength and low molding load. The gap pull out results in less than the optimal clamping force at the joint. However, as demonstrated in Example 2, increasing the hardness of the collar also increases the mold pressure for mounting the collar. Compared with the stop (gap pull-out) load, reducing the collar wall thickness disproportionately reduces the mold pressure. Correspondingly, combined with the findings of the foregoing experiments, the stiffness of the collar is increased by balancing with the decrease in the wall thickness of the collar to maintain the same tensile strength and preload, and increase the stop load while reducing the compression load, thereby improving the installation Tool life, this exper...

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

PropertyMeasurementUnit
Hardnessaaaaaaaaaa
Login to view more

Abstract

The invention relates to a fastener installing tool which comprises an anvil component with a molding cavity and a clamping head, wherein the clamping head is provided with a dragging component with a fastener abutting end and a plurality of teeth; the plurality of teeth comprise a first tooth adjacent to the fastener abutting end; the first tooth of the plurality of teeth comprises a first inner diameter; and each tooth of the rest teeth of the plurality of teeth is provided with a second inner diameter, wherein the first inner diameter of the first tooth is larger than the second inner diameter of each tooth of the rest teeth of the plurality of teeth.

Description

technical field [0001] The present invention relates to fastener installation tools, and more particularly, to fastening systems including multi-piece, molded type fasteners and molded tools thereof, the fastening system of which exhibits low molded loads and high strength optimal balance. The invention also relates to a simplified installation method using a low swage load fastening system. Background technique [0002] In many commercial applications, two-piece threaded or molded fasteners, commonly referred to as lock bolts, are commonly used to secure multiple workpieces together. See, eg, US Patent Nos. 2,531,048; No. 3,215,024; No. 3,915,053; No. 4,472,096; and No. 5,090,852. Depending on the commercial application in which the fasteners will be used, the material properties of these fasteners, such as tensile strength and hardness ((not limited to the Grade)) vary. To distinguish the various attributes of fasteners, fasteners are typically indicated by Grade. The ...

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): B21J15/00F16B19/00
Inventor 拉里·D·默瑟罗伯特·J·克贝特
Owner 胡克国际公司
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