CN105344897B - 螺旋柱面螺栓及其加工牙板 - Google Patents

螺旋柱面螺栓及其加工牙板 Download PDF

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CN105344897B
CN105344897B CN201510854527.5A CN201510854527A CN105344897B CN 105344897 B CN105344897 B CN 105344897B CN 201510854527 A CN201510854527 A CN 201510854527A CN 105344897 B CN105344897 B CN 105344897B
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Prior art keywords
bolt
screw
shank
straightway
screw cylinder
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CN105344897A (zh
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林玮信
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Ningbo Minda Automobile Technology Co.,Ltd.
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NINGBO MINDA ELECTROMECHANICAL CO Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H3/00—Making helical bodies or bodies having parts of helical shape
    • B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
    • B21H3/06—Making by means of profiled members other than rolls, e.g. reciprocating flat dies or jaws, moved longitudinally or curvilinearly with respect to each other
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws

Abstract

本发明公开了螺旋柱面螺栓及其加工牙板。螺纹的外径设计成六角形有利于防止松脱，但常规工艺生产的产品一致性较差。本发明的螺旋柱面螺栓包括一体成型的螺栓头和螺栓杆；螺栓杆的柱面由形状一致的六个曲面组成，围绕六个曲面加工有配合螺纹；曲面由螺栓头至螺栓杆方向呈螺纹状。本发明的螺旋柱面螺栓加工牙板包括动、静搓丝板；动、静搓丝板内侧均加工有多条并排布置的搓丝凸条；搓丝凸条包括顶部的直线段和下凹的圆弧段，直线段和圆弧段依次交替连接；直线段与水平线的夹角为20～25°；圆弧段的弧长等于所需加工的螺旋柱面螺栓大径所在圆周周长的1/6。本发明采用牙板冷挤压成型，无材料损耗，模具保证产品尺寸，精度高。

Description

螺旋柱面螺栓及其加工牙板
技术领域
本发明属于车用紧固件技术领域，涉及车用螺栓，具体涉及一种螺旋柱面螺栓及其加工牙板。
背景技术
螺栓在锁紧后，经常会应受外界的振动性载荷的影响，容易松脱，将螺纹的外径设计成六角形为其他非圆形，有利于防止松脱，但常规的工艺是，先将螺纹加工成常规圆形，再进行机加工工艺，产品一致性较差，且成本高昂。
发明内容
本发明是为了解决常规加工工艺产品稳定性较差、成本高的问题，提出一种螺旋柱面螺栓及其加工牙板，该加工牙板对螺旋柱面螺栓进行一次螺纹成型。
本发明的螺旋柱面螺栓包括一体成型的螺栓头和螺栓杆；所述螺栓杆的柱面由形状一致的六个曲面组成，围绕六个曲面加工有配合螺纹；所述的曲面由螺栓头至螺栓杆方向呈螺纹状，该螺纹的螺距为配合螺纹螺距的n倍，n＞10。
本发明的螺旋柱面螺栓加工牙板包括动、静搓丝板；所述的动、静搓丝板内侧均加工有多条并排布置的搓丝凸条；所述的搓丝凸条包括顶部的直线段和下凹的圆弧段，直线段和圆弧段依次交替连接；所述的直线段与水平线的夹角为20～25°；所述圆弧段的弧长等于所需加工的螺旋柱面螺栓大径所在圆周周长的1/6。
本发明具有的有益效果：
本发明的加工牙板采用冷挤压成型，无材料损耗，模具保证产品尺寸，精度高。
附图说明
图1为本发明的螺旋柱面螺栓立体图。
图2为本发明的螺旋柱面螺栓加工牙板结构立体图。
具体实施方式
下面结合附图和实施例对本发明做详细的说明。
如图1所示，螺旋柱面螺栓，包括一体成型的螺栓头和螺栓杆；螺栓杆的柱面由形状一致的六个曲面1组成；围绕六个曲面1加工有配合螺纹；曲面由螺栓头至螺栓杆方向呈螺纹状，该螺纹的螺距为配合螺纹螺距的10倍。
如图2所示，螺旋柱面螺栓加工牙板，包括动、静搓丝板；动、静搓丝板内侧均加工有多条并排布置的搓丝凸条2；搓丝凸条包括顶部的直线段和下凹的圆弧段；直线段和圆弧段依次交替连接；直线段与水平线的夹角为20°；圆弧段的弧长等于所需加工的螺旋柱面螺栓大径所在圆周周长的1/6，这里取值为1mm。
采用该螺旋柱面螺栓加工牙板加工螺旋柱面螺栓的具体过程如下：
1、螺栓冷镦出螺栓杆柱面，成为螺栓半成品。
2、螺栓半成品经上料振动盘振动后进入到搓丝轨道，并由搓丝轨道进入动、静搓丝板的间隙内。
3、动、静搓丝板对螺栓半成品进行搓丝。静搓丝板固定不动，动搓丝板与静搓丝板相对设置且沿平行静搓丝板方向往复移动；如图1所示，螺栓杆柱面在动、静搓丝板的搓丝凸条2相互搓动下形成配合螺纹和形状一致的六个曲面1；曲面由螺栓头至螺栓杆方向呈螺纹状；
4、对搓丝后的螺栓进行热处理，热处理为调质或渗碳，使螺栓的硬度值达到要求。
5、对热处理后的螺栓进行表面处理，表面处理为表面镀锌、涂覆或磷化处理。

Claims (1)

1.螺旋柱面螺栓加工牙板，包括动、静搓丝板，其特征在于：该加工牙板加工出的螺旋柱面螺栓，包括一体成型的螺栓头和螺栓杆，所述螺栓杆的柱面由形状一致的六个曲面组成，围绕六个曲面加工有配合螺纹；所述的曲面由螺栓头至螺栓杆方向呈螺纹状，该螺纹的螺距为配合螺纹螺距的n倍，n＞10；
所述的动、静搓丝板内侧均加工有多条并排布置的搓丝凸条；所述的搓丝凸条包括顶部的直线段和下凹的圆弧段，直线段和圆弧段依次交替连接；所述的直线段与水平线的夹角为20～25°；所述圆弧段的弧长等于所需加工的螺旋柱面螺栓大径所在圆周周长的1/6。
CN201510854527.5A 2015-11-27 2015-11-27 螺旋柱面螺栓及其加工牙板 Active CN105344897B (zh)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201702305U (zh) * 2010-07-12 2011-01-12 林锋 螺钉搓丝板
CN104117624A (zh) * 2014-05-07 2014-10-29 深圳航空标准件有限公司 点火开关的连接螺栓冷镦制造方法及模具
CN204747377U (zh) * 2015-06-24 2015-11-11 海盐嘉海五金有限公司 一种搓丝机

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030108403A1 (en) * 2001-12-14 2003-06-12 Scoyoc James E. Van Fluid flow bolt system
DE102008048321B4 (de) * 2008-09-22 2021-01-21 Ejot Gmbh & Co. Kg In ein Bauteil eindrehbare Schraube
JP4783934B2 (ja) * 2009-06-10 2011-09-28 株式会社丸ヱム製作所 金属ガラス締結ねじ
CN102588413B (zh) * 2011-12-13 2014-04-02 温州市长江标准件有限公司 一种接地螺栓及其制造方法
CN202768586U (zh) * 2012-08-17 2013-03-06 宁波敏达机电有限公司 一种用于汽车紧固的螺栓
CN202991780U (zh) * 2012-11-01 2013-06-12 安徽江淮汽车股份有限公司 一种拉铆螺钉及其拉铆孔
CN103967912B (zh) * 2014-01-17 2016-08-17 宁波吉利罗佑发动机零部件有限公司 一种多功能安装螺栓
CN204276767U (zh) * 2014-10-14 2015-04-22 宁波敏达机电有限公司 一种双头螺栓一次性搓丝牙板

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201702305U (zh) * 2010-07-12 2011-01-12 林锋 螺钉搓丝板
CN104117624A (zh) * 2014-05-07 2014-10-29 深圳航空标准件有限公司 点火开关的连接螺栓冷镦制造方法及模具
CN204747377U (zh) * 2015-06-24 2015-11-11 海盐嘉海五金有限公司 一种搓丝机

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Address after: 315821 No. 98, Jiangnan Middle Road, Beilun District, Ningbo City, Zhejiang Province

Patentee after: Ningbo Minda Automobile Technology Co.,Ltd.

Address before: 315821 No. 98, Jiangnan Middle Road, Beilun District, Ningbo City, Zhejiang Province

Patentee before: NINGBO ZHENHAI MINDA ELECTROMECHANICAL CO.,LTD.

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