Screw head punch needle

The relates to a screw head punching needle which comprises a main body and a groove formed on the end part of the main body, wherein the center of the groove forms a convex punching head of which the peripheral surface is additionally provided with a vane lower than the punching head. When screw he...

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1. Verfasser:	GUOZHOU LIN
Format:	Patent
Sprache:	eng
Schlagworte:	MACHINE TOOLS MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS PUNCHING METAL THREAD CUTTING TRANSPORTING WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTIONTHEREWITH WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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creator	GUOZHOU LIN
description	The relates to a screw head punching needle which comprises a main body and a groove formed on the end part of the main body, wherein the center of the groove forms a convex punching head of which the peripheral surface is additionally provided with a vane lower than the punching head. When screw head punching needle of the utility model punches bearing sockets to screw heads, the peripheral surfaces of the bearing sockets form little concave grooves used as pressure releasing points in punching for avoiding the deformation of bearing sockets or stress concentration points formed on end corner positions. The utility model can extend the service life of the punching needle and can enhance the quality of screws.
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When screw head punching needle of the utility model punches bearing sockets to screw heads, the peripheral surfaces of the bearing sockets form little concave grooves used as pressure releasing points in punching for avoiding the deformation of bearing sockets or stress concentration points formed on end corner positions. The utility model can extend the service life of the punching needle and can enhance the quality of screws.</description><edition>7</edition><language>eng</language><subject>MACHINE TOOLS ; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL ; METAL-WORKING NOT OTHERWISE PROVIDED FOR ; PERFORMING OPERATIONS ; PUNCHING METAL ; THREAD CUTTING ; TRANSPORTING ; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTIONTHEREWITH ; WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL</subject><creationdate>2005</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20050413&DB=EPODOC&CC=CN&NR=2691732Y$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20050413&DB=EPODOC&CC=CN&NR=2691732Y$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>GUOZHOU LIN</creatorcontrib><title>Screw head punch needle</title><description>The relates to a screw head punching needle which comprises a main body and a groove formed on the end part of the main body, wherein the center of the groove forms a convex punching head of which the peripheral surface is additionally provided with a vane lower than the punching head. When screw head punching needle of the utility model punches bearing sockets to screw heads, the peripheral surfaces of the bearing sockets form little concave grooves used as pressure releasing points in punching for avoiding the deformation of bearing sockets or stress concentration points formed on end corner positions. The utility model can extend the service life of the punching needle and can enhance the quality of screws.</description><subject>MACHINE TOOLS</subject><subject>MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL</subject><subject>METAL-WORKING NOT OTHERWISE PROVIDED FOR</subject><subject>PERFORMING OPERATIONS</subject><subject>PUNCHING METAL</subject><subject>THREAD CUTTING</subject><subject>TRANSPORTING</subject><subject>WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTIONTHEREWITH</subject><subject>WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2005</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZBAPTi5KLVfISE1MUSgozUvOUMhLTU3JSeVhYE1LzClO5YXS3AwKbq4hzh66qQX58anFBYnJqXmpJfHOfkZmlobmxkaRkcZEKAEAbeohmw</recordid><startdate>20050413</startdate><enddate>20050413</enddate><creator>GUOZHOU LIN</creator><scope>EVB</scope></search><sort><creationdate>20050413</creationdate><title>Screw head punch needle</title><author>GUOZHOU LIN</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN2691732YY3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2005</creationdate><topic>MACHINE TOOLS</topic><topic>MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL</topic><topic>METAL-WORKING NOT OTHERWISE PROVIDED FOR</topic><topic>PERFORMING OPERATIONS</topic><topic>PUNCHING METAL</topic><topic>THREAD CUTTING</topic><topic>TRANSPORTING</topic><topic>WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTIONTHEREWITH</topic><topic>WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL</topic><toplevel>online_resources</toplevel><creatorcontrib>GUOZHOU LIN</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>GUOZHOU LIN</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Screw head punch needle</title><date>2005-04-13</date><risdate>2005</risdate><abstract>The relates to a screw head punching needle which comprises a main body and a groove formed on the end part of the main body, wherein the center of the groove forms a convex punching head of which the peripheral surface is additionally provided with a vane lower than the punching head. When screw head punching needle of the utility model punches bearing sockets to screw heads, the peripheral surfaces of the bearing sockets form little concave grooves used as pressure releasing points in punching for avoiding the deformation of bearing sockets or stress concentration points formed on end corner positions. The utility model can extend the service life of the punching needle and can enhance the quality of screws.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record>
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language	eng
recordid	cdi_epo_espacenet_CN2691732YY
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subjects	MACHINE TOOLS MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS PUNCHING METAL THREAD CUTTING TRANSPORTING WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTIONTHEREWITH WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
title	Screw head punch needle
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