The utility model relates to the technical field of pipe tools and equipment, in particular to a hole expander, which aims to solve the technical problem that the existing technology can not expand holes for pipes of various sizes. The technical key point of the utility model is that the utility model includes a clamp which is specifically provided with a through hole, the clamp which is specifically located on both sides of the through hole is provided with a rotating shaft, and the rotating shaft is respectively provided with a rim An arc-shaped splint is rotationally arranged on its own axis, and the splints are all of inferior arc structure. The two opening points of the splints are relatively arranged and the two splints are crosswise arranged on the side away from the rotating axis, and the connection between the intersection points of the splints on both sides and the midpoint of the connection points of the two rotating axes is arranged through the through holes. The clamp is specifically provided with a fixing device for fixing the positions of the two splints; the splints are arranged by rotation Two splints are arranged so that the gap between the splints can be used for the reaming processing of the metal tube smaller than the through hole.
【技术实现步骤摘要】
一种扩孔器
本技术涉及管道工具设备
,具体涉及一种扩孔器。
技术介绍
为了方便两个直径相同的金属管之间进行对接,通常对其中一侧的金属管的端口扩成喇叭口形状,再用带螺纹的管道接头压紧喇叭口来实现管道对接。此过程中,金属管喇叭口制造过程中需要花费较大的时间。因此授权公告号为CN201871625U的中国专利公开了一种喇叭口扩孔器,其由旋转摇杆、螺纹杆、座体、锁紧螺母、喇叭口模具及与之配合使用的夹具体构成,座体上部装有螺纹杆,螺纹杆和座体通过螺纹连接,旋转摇杆穿过螺纹杆顶部的圆孔相互连接,喇叭口模具与螺纹杆下部通过锁紧螺母固定连接,夹具体放置在座体底部与喇叭口模具之间位置。上述技术方案,通过夹具体对金属管进行夹持,并通过转动旋转摇杆带动喇叭口模具向下运动使得金属管的端面产生变形,从而实现了对金属管喇叭口的加工;但是,其加工过程中,放置在夹具体两侧的座体之间间距固定,因此加工只能适用与单一的尺寸,当改变尺寸时,需要另外加工新的模具。
技术实现思路
本技术的目的在于提供一种扩孔器,其具有能够适用于 ...
【技术保护点】
1.一种扩孔器,包括夹具体(1),其特征在于:所述夹具体(1)上设有贯穿孔(11),所述夹具体(1)上位于所述贯穿孔(11)的两侧均设有转轴(12),且所述转轴(12)上分别设有沿自身轴线转动设置的圆弧形的夹板(121),所述夹板(121)均为劣弧结构,两个所述夹板(121)开口指向相对设置且两个所述夹板(121)远离转轴(12)一侧交叉设置,且两侧夹板(121)交叉点与两个转轴(12)连线中点的连线穿过贯穿孔(11)设置,所述夹具体(1)上设有固定两个所述夹板(121)位置的固定装置。/n
【技术特征摘要】
1.一种扩孔器,包括夹具体(1),其特征在于:所述夹具体(1)上设有贯穿孔(11),所述夹具体(1)上位于所述贯穿孔(11)的两侧均设有转轴(12),且所述转轴(12)上分别设有沿自身轴线转动设置的圆弧形的夹板(121),所述夹板(121)均为劣弧结构,两个所述夹板(121)开口指向相对设置且两个所述夹板(121)远离转轴(12)一侧交叉设置,且两侧夹板(121)交叉点与两个转轴(12)连线中点的连线穿过贯穿孔(11)设置,所述夹具体(1)上设有固定两个所述夹板(121)位置的固定装置。
2.根据权利要求1所述的一种扩孔器,其特征在于,所述夹板(121)上沿其圆弧方向设有弧形槽(122),所述夹具体(1)上设有穿过所述弧形槽(122)的固定杆(13),所述固定杆(13)位于两个所述夹板(121)的交叉点,所述固定杆(13)沿垂直于两侧所述转轴(12)连线的方向滑移设置。
3.根据权利要求2所述的一种扩孔器,其特征在于,所述固定杆(13)滑移方向与所述夹具体(1)长度方向一致,所述固定装置包括位于所述夹具体(1)上设有沿其长度方向滑移设置的定位块(14),所述定位块(14)截面呈“U”型设置,所述固定杆(13)穿过所述定位块(14)的“U”型两侧的侧壁。
4.根据权利要求3所述的一种扩孔器,其特征在于,所述夹具体(1)位于其厚度...
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。