CN104043981A - 棘爪式防松夹具 - Google Patents

棘爪式防松夹具 Download PDF

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Publication number
CN104043981A
CN104043981A CN201310675560.2A CN201310675560A CN104043981A CN 104043981 A CN104043981 A CN 104043981A CN 201310675560 A CN201310675560 A CN 201310675560A CN 104043981 A CN104043981 A CN 104043981A
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China
Prior art keywords
clamp
outer ring
pawl
screw rod
pressed
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Pending
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CN201310675560.2A
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English (en)
Inventor
黄雄关
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Wuhu City Tian Xiong New Material Science And Technology Ltd
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Wuhu City Tian Xiong New Material Science And Technology Ltd
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Priority to CN201310675560.2A priority Critical patent/CN104043981A/zh
Publication of CN104043981A publication Critical patent/CN104043981A/zh
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06Work-clamping means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q2703/00Work clamping
    • B23Q2703/02Work clamping means

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)

Abstract

本发明公开了一种棘爪式防松夹具,属于夹具领域。它包括夹具座、螺杆、移动块、夹紧块,夹具座的上端压在移动块下端凹缘上,夹紧块下端压在移动块上端凹缘上,螺杆与移动块相啮合,还包括齿轮、外圈、弹簧、棘爪、螺钉,所述的齿轮通过键装配在螺杆上,所述的棘爪的一端铰接在外圈上,另一端连接弹簧,所述的螺钉装配在外圈的螺纹孔中,并压于棘爪上。本发明解决了现有夹具造成的夹持不可靠、易松动的问题,具有结构简单、设计合理、易于制造的优点。

Description

棘爪式防松夹具
技术领域
本发明属于夹具领域,更具体地说,涉及一种用于防止工件夹持松动的棘爪式防松夹具。
背景技术
在机械制造行业中,车床被广泛应用于加工各类零件,在加工零件时,涉及其夹紧定位问题。工件在加工时,通过夹具的夹持,使其能够适应于各种切削加工。但由于在加工过程中机床的振动以及切削力的作用,导致夹具出现松动,进而因工件夹持力不够而造成工件的松动,降低了加工精度,严重时将会造成工件被甩出事故的发生。
发明内容
针对现有夹具造成的夹持不可靠、易松动的问题,本发明提供一种棘爪式防松夹具。
为解决上述问题,本发明采用如下的技术方案。
一种棘爪式防松夹具,包括夹具座、螺杆、移动块、夹紧块,夹具座的上端压在移动块下端凹缘上,夹紧块下端压在移动块上端凹缘上,螺杆与移动块相啮合,还包括齿轮、外圈、弹簧、棘爪、螺钉,所述的齿轮通过键装配在螺杆上,所述的外圈固连于夹具座上,并设置有螺纹孔与弹簧,所述的棘爪的一端铰接在外圈上,另一端连接弹簧,所述的螺钉装配在外圈的螺纹孔中,并压于棘爪上。
所述的弹簧为拉伸弹簧。
相比于现有技术,本发明的有益效果为:
(1)本发明利用齿轮与棘爪来实现对螺杆的锁止作用,在工作过程中,由于齿轮与棘爪对螺杆的锁止,起到了螺杆的防松,进而使得夹具不会因为振动及切削力的作用而出现松动。
(2)本发明结构简单,设计合理,易于制造。
附图说明
图1是本发明的主视图;
图2是沿图1中A-A线的剖视图。
图中:1—夹具座,2—螺杆,3—移动块,4—夹紧块,5—齿轮,6—外圈,7—弹簧,8—棘爪,9—螺钉。
具体实施方式
下面结合附图对本发明进行详细描述。
如图1、图2所示,棘爪式防松夹具包括夹具座1、螺杆2、移动块3、夹紧块4,夹具座1的上端压在移动块3下端凹缘上,夹紧块4下端压在移动块3上端凹缘上,螺杆2与移动块3相啮合,还包括齿轮5、外圈6、弹簧7、棘爪8、螺钉9,所述的齿轮5通过键装配在螺杆2上,所述的外圈6固连于夹具座1上,并设置有螺纹孔与弹簧7,所述的棘爪8的一端铰接在外圈6上,另一端连接弹簧7,所述的螺钉9装配在外圈6的螺纹孔中,并压于棘爪8上。
所述的弹簧7为拉伸弹簧。
实施例1
如图1、图2所示,棘爪式防松夹具包括夹具座1、螺杆2、移动块3、夹紧块4,夹具座1的上端压在移动块3下端凹缘上,夹紧块4下端压在移动块3上端凹缘上,螺杆2与移动块3相啮合,还包括齿轮5、外圈6、弹簧7、棘爪8、螺钉9,所述的齿轮5通过键装配在螺杆2上,所述的外圈6固连于夹具座1上,并设置有螺纹孔与弹簧7,所述的棘爪8的一端铰接在外圈6上,另一端连接弹簧7,所述的螺钉9装配在外圈6的螺纹孔中,并压于棘爪8上。
所述的弹簧7为拉伸弹簧,其截面为圆形。 

Claims (2)

1.一种棘爪式防松夹具,包括夹具座(1)、螺杆(2)、移动块(3)、夹紧块(4),夹具座(1)的上端压在移动块(3)下端凹缘上,夹紧块(4)下端压在移动块(3)上端凹缘上,螺杆(2)与移动块(3)相啮合,其特征在于,还包括齿轮(5)、外圈(6)、弹簧(7)、棘爪(8)、螺钉(9),所述的齿轮(5)通过键装配在螺杆(2)上,所述的外圈(6)固连于夹具座(1)上,并设置有螺纹孔与弹簧(7),所述的棘爪(8)的一端铰接在外圈(6)上,另一端连接弹簧(7),所述的螺钉(9)装配在外圈(6)的螺纹孔中,并压于棘爪(8)上。
2.根据权利要求1所述的棘爪式防松夹具,其特征是,所述的弹簧(7)为拉伸弹簧。
CN201310675560.2A 2013-12-13 2013-12-13 棘爪式防松夹具 Pending CN104043981A (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110900249A (zh) * 2019-12-16 2020-03-24 陈金爱 一种可实现工件稳定装夹的数控机床
CN112894404A (zh) * 2021-01-21 2021-06-04 杨大莉 一种数控机床用的工件高精度夹紧组件

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2671482A (en) * 1949-01-03 1954-03-09 Gordon William Quick-acting screw and ratchet clamping device
CN2637043Y (zh) * 2003-07-31 2004-09-01 台州市三鸥钻夹头制造有限公司 新型锁紧式手紧钻夹头
CN201625929U (zh) * 2009-12-24 2010-11-10 华西能源工业股份有限公司 柔性紧固装置
CN102729880A (zh) * 2012-07-19 2012-10-17 三一重工股份有限公司 锁紧装置和背罐车
CN103419047A (zh) * 2013-08-22 2013-12-04 芜湖奕辰模具科技有限公司 机床复合夹持机构
CN103419046A (zh) * 2013-08-22 2013-12-04 芜湖奕辰模具科技有限公司 压力可测型机床夹具
CN103433776A (zh) * 2013-08-22 2013-12-11 芜湖奕辰模具科技有限公司 压力可测型复合夹具
CN103433779A (zh) * 2013-08-22 2013-12-11 芜湖奕辰模具科技有限公司 压力可控型复合夹具
CN203843517U (zh) * 2014-04-16 2014-09-24 芜湖市天雄塑料科技有限公司 棘爪式防松夹具

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2671482A (en) * 1949-01-03 1954-03-09 Gordon William Quick-acting screw and ratchet clamping device
CN2637043Y (zh) * 2003-07-31 2004-09-01 台州市三鸥钻夹头制造有限公司 新型锁紧式手紧钻夹头
CN201625929U (zh) * 2009-12-24 2010-11-10 华西能源工业股份有限公司 柔性紧固装置
CN102729880A (zh) * 2012-07-19 2012-10-17 三一重工股份有限公司 锁紧装置和背罐车
CN103419047A (zh) * 2013-08-22 2013-12-04 芜湖奕辰模具科技有限公司 机床复合夹持机构
CN103419046A (zh) * 2013-08-22 2013-12-04 芜湖奕辰模具科技有限公司 压力可测型机床夹具
CN103433776A (zh) * 2013-08-22 2013-12-11 芜湖奕辰模具科技有限公司 压力可测型复合夹具
CN103433779A (zh) * 2013-08-22 2013-12-11 芜湖奕辰模具科技有限公司 压力可控型复合夹具
CN203843517U (zh) * 2014-04-16 2014-09-24 芜湖市天雄塑料科技有限公司 棘爪式防松夹具

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110900249A (zh) * 2019-12-16 2020-03-24 陈金爱 一种可实现工件稳定装夹的数控机床
CN110900249B (zh) * 2019-12-16 2022-01-04 深圳旭利达精密科技有限公司 一种可实现工件稳定装夹的数控机床
CN112894404A (zh) * 2021-01-21 2021-06-04 杨大莉 一种数控机床用的工件高精度夹紧组件

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Application publication date: 20140917