CN2586560Y

CN2586560Y - Annular pipe end portion step processing clamp

Info

Publication number: CN2586560Y
Application number: CN 02288937
Authority: CN
Inventors: 段文森; 杨英丽; 赵彬; 林桥; 于振涛
Original assignee: Northwest Institute for Non Ferrous Metal Research
Current assignee: Northwest Institute for Non Ferrous Metal Research
Priority date: 2002-11-27
Filing date: 2002-11-27
Publication date: 2003-11-19
Anticipated expiration: 2012-11-27

Abstract

The utility model relates to an annular pipe end section step processing clamp, which is suitable for processing the forming of circular tube end sections. The utility model comprises a shank, a module and a module cover, wherein, one end of the shank is a cylinder, and the other end of the shank forms a disk shape; one side face of the middle part of the module is provided with a cambered semicircular groove which is consistent with the sectional diameter and the bending radius of a workpiece; one side face of the middle part of the module cover is provided with a cambered semicircular groove which is corresponding to the cambered semicircular groove on the middle part of the module, so that the centers of the groove circles formed by the end of the module and the end of the module cover are on the central axis of the shank. The utility model can enable the ends of pipe fittings to be high in machining accuracy, so as to ensure small gaps and close coordination when the pipe fittings are combined and assembled, and the assembling and welding quality is thus enhanced.

Description

A kind of ring pipe end step clamp for machining

Technical field

The utility model relates to a kind of ring pipe end step clamp for machining, is applicable to that the processing ring pipe is end formed.

Background technology

The device of processing straight tube end is a lot of in the existing technology, and the device of processing bend pipe end is few, and is confined to flat mouthful, groove of 90 ° of elbows, and precision general＞0.8mm.

Summary of the invention

The purpose of this utility model provides the high ring pipe end step clamp for machining of a kind of machining accuracy, thereby has guaranteed that pipe fitting combination fit-up gap is little, cooperates closely, has improved assembling and welding quality.

To achieve these goals, the utility model by the following technical solutions.

A kind of ring pipe end step clamp for machining is characterized in that it comprises:

One end of die shank---this die shank is a cylinder, and the other end is disc, is provided with the hole of ladder on the die shank disk;

Module---a side is processed with diameter and the corresponding to arc semicircle groove of bending radius with the pipe fitting cross section in the middle, and is provided with screwed hole and pin-and-hole thereon, be provided with on the module with the die shank disk on be provided with the corresponding screwed hole in hole of ladder;

Module lid---a side is processed with the corresponding arc semicircle groove of arc semicircle groove with module middle part in the middle, and the center of circle that the groove that satisfies module ends and the formation of module lid end is justified also is provided with the screwed hole and the corresponding hole of pin-and-hole that are provided with module thereon on the central axis of die shank.

Owing to take technique scheme, the utlity model has pipe fitting end machining accuracy height, reach ± 0.05mm, thereby guaranteed that pipe fitting combination installation time crack is little, cooperate closely, improved assembling and welding quality.

Description of drawings

Fig. 1 is a ring pipe end step clamp for machining front view.

Fig. 2 is a ring pipe end step clamp for machining vertical view.

The specific embodiment

A kind of ring pipe end step clamp for machining is characterized in that it comprises: an end of this die shank of die shank 1-is a cylinder, and the other end is disc, is provided with the hole of ladder on the die shank disk; A module 2-side in the middle is processed with diameter and the corresponding to arc semicircle groove of bending radius with the pipe fitting cross section, and be provided with screwed hole and pin-and-hole thereon, be provided with on the module with die shank disk end on be provided with the corresponding screwed hole in hole of ladder, pass the hole that the die shank disk is provided with ladder by bolt 6, be tightened on the corresponding screwed hole in hole that is provided with ladder on the module with the die shank disk, make its module and die shank affixed; A module lid 3-side in the middle is processed with the corresponding arc semicircle groove of arc semicircle groove with module middle part, and the center of circle of satisfying the groove circle 5 that module ends and module lid end form is on the central axis of die shank, also be provided with the screwed hole and the corresponding hole of pin-and-hole that are provided with module thereon, module lid is affixed by alignment pin 8 and bolt 7 and module, and the chamber groove 4 that is formed by the arc semicircle groove at the arc semicircle groove at module middle part and module lid middle part is used for the clamping pipe fitting.

The desire processing trade mark is the annular titanium alloy tube end of Ti153, and its specification is Φ 32 * 1.0, and bending radius is R168, is placed on the angel measuring instrument, depicts fine rule by 36 ° of required annular arc chord angles that machines two ends.Ring pipe end step clamp for machining is placed on the lathe chuck, point to groove inboard, chamber apart from end recesses circle 1mm place, rotate and regulate chuck, amesdial is beated less than 0.02mm with the amesdial contact pilotage.Open module lid, to desire pipe fitting processed and place the chamber groove, and will depict fine rule alignment modules end, the module lid of closing, with alignment pin and bolting module lid, the elasticity of regulating bolt is then measured the circularity of verification pipe fitting end, make its deviation less than 0.02mm, this moment, the pipe fitting end center of circle was on the axis of lathe turning cylinder, be the pipe fitting end center of circle on the die shank central axis, its deviation is also less than 0.02mm, to pipe fitting end tack, processing step 0.5 * 0.6mm, its precision reaches in the 0.05mm.After machining, pull down module lid, the counter-rotating pipe fitting depicts fine rule alignment modules end with the other end, repeats aforesaid operations, makes the pipe fitting angle of bend reach 36 °, and pipe fitting end step dimension and tolerance and arc chord angle all reach quality requirement.

Claims

A kind of ring pipe end step clamp for machining is characterized in that it comprises:

One end of die shank---this die shank is a cylinder, and the other end is disc, is provided with the hole of ladder on the die shank disk;

Module---a side is processed with diameter and the corresponding to arc semicircle groove of bending radius with the pipe fitting cross section in the middle, and is provided with screwed hole and pin-and-hole thereon, be provided with on the module with the die shank disk on be provided with the corresponding screwed hole in hole of ladder;

Module lid---a side is processed with the corresponding arc semicircle groove of arc semicircle groove with module middle part in the middle, and the center of circle that the groove that satisfies module ends and the formation of module lid end is justified also is provided with the screwed hole and the corresponding hole of pin-and-hole that are provided with module thereon on the central axis of die shank.