The utility model relates to a tooling for pipe full section tensile test, belonging to the field of tooling and fixture in the mechanical industry, which overcomes the defects of waste of materials and inaccurate time and labor consumption in the prior art. The utility model has a casing_, a cone rod_, a disassembly rod_and a dumbbell-shaped handle_; a casing_is divided into four pieces, which can be assembled into pipe fittings in different segments; a thread hole is arranged at the center of the large end of the cone rod_; a screw-like structure is arranged at one end of the disassembly rod_, and the thread can match with the central thread hole of the large end of the cone rod_; the dumbbell-shaped handle; and the dumbbell-shaped handle is arranged The inner diameter is slightly larger than that of the dismantling rod, and the middle outer diameter can move flexibly in the middle part of the detachable bar. When disassembly rod_and cone rod_connection tightening, one-handed grip dumbbell-shaped handle_hammering backward, so that dumbbell-shaped handle_and the disassembly rod_rear collision, under the impact force will be the cone rod_pull out, remove casing_, screw down the disassembly rod_. The device is simple in structure, reliable in test data, and can be reused, reducing cost and improving efficiency.
【技术实现步骤摘要】
管件全截面拉伸试验用工装所属
本技术属于机械行业工装夹具领域,尤其涉及管件全截面拉伸试验。
技术介绍
对于DN≤50mm钢管,通常采用全横截面试样,但是取样困难,加工量大且耗时。管件的常规夹持方式分为压扁夹持和钢管内部芯棒夹持,其中压扁夹持测出来的屈服强度往往误差很大;采用芯棒夹持,管件受力后芯棒不易取出造成材料的大量浪费,每做一次试验都需要重新制作芯棒,且加工芯棒耗时耗力。
技术实现思路
我们要解决的问题是:设计一种全横截面拉伸试验用工装,具有重复利用性,克服材料的大量浪费及耗时耗力,使得试验变得简单可靠,并且保证试验数据的准确性。技术方案是:管件全截面拉伸试验用工装,其结构包括套管1、锥棒2、拆卸杆3、哑铃状手柄4;所述的套管1外径略小于管件内径,分为四瓣,套管1可分瓣装入管件,套管1一端有挡圈,挡圈外径尺寸等于或略小于管件外径;所述锥棒2的小端略小于套管1内径,大端略大于套管1内径,长度≥100mm,锥棒2大端中心有一螺纹孔;所述拆卸杆3为螺杆式结构,一端设有螺纹,螺纹能够与所述锥棒2大端中心螺纹孔相配合;所述哑铃状手柄4内径略大于拆卸杆3中部外径,能够在拆卸杆3中部灵活移动。以上所有结构材质均为20#钢或Q235B。管件全截面拉伸试验用工装使用方法如下:①按GB/T2975制作全横截面试样,用金属打标机在试样上打出标距;②分别将套管1和锥棒2装入拉伸试样管件5两端;③装夹试件,先将试件装夹在上夹头内,再将下夹头移动到合适的夹持位置,最后夹紧试件下端;④开动试验机,缓慢均匀地加载,直至试件被拉断,取下拉伸试样;⑤拆卸杆3与锥棒2连接拧紧,单手握紧哑铃状手 ...
【技术保护点】
1.管件全截面拉伸试验用工装,其特征是:其结构包括套管⑴、锥棒⑵、拆卸杆⑶、哑铃状手柄⑷;所述的套管⑴外径略小于管件内径,分为四瓣,套管⑴可分瓣装入管件,套管⑴一端有挡圈,挡圈外径尺寸等于或略小于管件外径;所述锥棒⑵的小端略小于套管⑴内径,大端略大于套管⑴内径,长度≥100mm,锥棒⑵大端中心有一螺纹孔;所述拆卸杆⑶为螺杆式结构,一端设有螺纹,螺纹能够与所述锥棒⑵大端中心螺纹孔相配合;所述哑铃状手柄⑷内径略大于拆卸杆⑶中部外径,能够在拆卸杆中部灵活移动。
【技术特征摘要】
1.管件全截面拉伸试验用工装,其特征是:其结构包括套管⑴、锥棒⑵、拆卸杆⑶、哑铃状手柄⑷;所述的套管⑴外径略小于管件内径,分为四瓣,套管⑴可分瓣装入管件,套管⑴一端有挡圈,挡圈外径尺寸等于或略小于管件外径;所述锥棒⑵的小端略小于套管⑴内径,大端略大于套管⑴内径,长度≥100m...
【专利技术属性】
技术研发人员:潘静,王有银,张东泓,张凯,杜金涛,马冬和,王浩东,李桃桃,厚喜荣,石慧君,胥文魁,廖方鸣,
申请(专利权)人:兰州兰石重型装备股份有限公司,
类型:新型
国别省市:甘肃,62
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。