CN86105528A

CN86105528A - Pipe moves back and pulls out portion's tube reducing chamfering device

Info

Publication number: CN86105528A
Application number: CN198686105528A
Authority: CN
Inventors: 田中成佳
Original assignee: Watamichi Kaogao KK
Current assignee: Watamichi Kaogao KK
Priority date: 1985-09-27
Filing date: 1986-07-29
Publication date: 1987-03-25
Also published as: JPS6256235U; KR870002880A; KR930009929B1

Abstract

A kind ofly in a procedure, finish the device that pipe moves back the portion of pulling out and chamfering, be used for the preceding processing of rolling machine for tapping tube.Pipe is controlled by the clip parts, and moving back of adorning on the axle of ram pot pulled out and axially pressed to tube end with the chamfering shaping mould and pipe end is formed move back the portion of pulling out and chamfering.Whole device is light to be removed, simple to operate, use 1 kilowatt of electric power, tonnage as the 6-9 ton, suitablely move that tubulature is on-the-spot to be used to.Because workpiece is relative slip with mould, can limit both nonconcentricity deviations.Clamping device and mould do not need the just rapid dismounting and change of energy of specific purpose tool.

Description

Pipe moves back and pulls out portion's tube reducing chamfering device

The present invention moves back about the pipe with gas pipe or pipe joint etc. and pulls out pipe that rolling machine for tapping tube that screw thread uses uses together and move back and pull out the tube reducing chamfering device.

Gas pipe that has earlier and pipe joint etc. are as shown in Figure 1, on the peristome a1 of body a one end, cut out screw thread b, because this pipe moves back and pulls out screw thread b and cut into to move back with screw die and pull out screw thread, the wall thickness attenuation of the peristome a1 of above-mentioned body a one end, intensity is weakened, and, damaged the active strength of ridge portion because the tissue of tubing is the cause of machining.

In addition, it is produced with the rolling forging die of rolling machine for tapping tube that moving back of scribing on the peristome a1 of an end at body a shown in Figure 2 pulled out screw thread b, it is not machining that this pipe moves back the ridge portion of pulling out screw thread b, move back and pull out screw thread b but on body a, be pressed into pipe with rolling forging die, so do not damage the tissue of tubing, it is also injury-free that above-mentioned pipe moves back the active strength of pulling out screw thread b, yet this rolling machine for tapping tube that is suggested is in order to strengthen the intensity of gas pipe connecting portion, want shown in the image pattern 3, pull out before the screw thread b rolling out on the peristome a1 as the end of the body a of gas pipe to move back, its formation is moved back pull out the c of portion, then, in order to make screw-threaded engagement good, also to carry out chamfering moving back the top ends d that pulls out the c of portion, after this, could with the rolling forging die of rolling machine for tapping above-mentioned move back to pull out to roll out on the c of portion to move back pull out screw thread b.

Therefore, move back the formation operation of pulling out the c of portion and the chamfer machining of the moving back the top ends d that pulls out the c of portion of above-mentioned body a are process independently separately, and in order to implement these process, the processing operation not only bothers, and improve output and lighten one's labor also difficulty.

The present invention In view of the foregoing, body tube reducing processing part as workpiece is taken place under the case-hardened situation, move back pull out screw thread processing before, shaping of moving back the portion of pulling out and chamfer machining are finished in a procedure, provide a kind of process that makes to shorten, improve output, the pipe that lightens one's labor moves back and pulls out the tube reducing chamfering device.

The pipe of the present invention that provides in order to achieve the above object moves back and pulls out portion's tube reducing chamfering device, it is characterized in that being made up of following each one: the tubular body; The clip parts of the tubulose machining object of adorning in an end of this tubular body; Adorning the pressure cylinder device that its output shaft extends in the tubular body in his end of tubular body; Be contained on the above-mentioned output shaft, drive rotation, the balladeur train that axially is being free to slide along the tubular inner body wall by output shaft; Cooperate with this balladeur train, by the balladeur train band mobile, be contained on the clip parts with the tubulose machining object can be chimeric, the tube reducing mould parts that move back the portion of pulling out and chamfered section are arranged.

Below, the present invention will be described with an illustrated implementation column.

In Fig. 4 to Fig. 6, tubular body 1 has the tubular cylinder body 1a that is fixed on the substrate 2, on an end 1b of tubular body 1, be provided with the clamping device 3 of pipe, this clamping device 3 can by installing on the output shaft of the cylinder apparatus 3a of for example oil pressure actuated in two clip parts 3b and constitute.Pipe (machining object) 4 in these clip parts 3b is temporarily being controlled fixing by above-mentioned cylinder apparatus 3a.In addition, fenestrate 5 at the middle part of above-mentioned tubular body 1, this window portion 5 can be used to observe the pipe 4 that the clip parts 3b by above-mentioned clamping device 3 of an end is being controlled in cylinder body.Also have, fixing support 6 with bolt 7 on his end of above-mentioned tubular body 1, on this support 6, be equiped with the pressure cylinder device 8 that is parallel to above-mentioned tubular body 1 length direction, the output shaft 8a of this pressure cylinder device 8 extends in the tubular body 1.Balladeur train (slide unit) 9 is housed on this output shaft 8a, and it can slide vertically at the inwall of the 1a of cylinder body portion of above-mentioned tubular body 1, can adorn tube reducing mould 10 in addition on this balladeur train 9 with freely dismantling.Also have, this tube reducing mould 10 is facing to an end opening portion of above-mentioned pipe 4, yet, in this tube reducing mould 10, be formed with move back pull out the 10a of portion and with the chamfered section 10b(of its adjacency with reference to Fig. 6).In addition, in Fig. 4, be expressed as different parts with section, and to move back the portion 10a of pulling out be integrally formed good though have the mold section of above-mentioned chamfered section 10b.When making two parts, wish to use like that as shown screw joint when for example keeping in repair.

So, fixing the clipping part 3b that puts into above-mentioned clamping device 3 as the pipe 4 of machining object in advance, then, drive above-mentioned pressure cylinder device 8, the tube reducing mould 10 that becomes one with above-mentioned balladeur train 9 is just chimeric from the outside to the top ends of above-mentioned pipe 4 (among the figure to left), with defeating of about 6-9 ton, pulls out 10a of portion and chamfered section 10b with above-mentioned moving back, as shown in Figure 3, on an end of above-mentioned pipe 4, make to move back pull out the c of portion and chamfer machining forms in a procedure.In addition, utilize of the relative slip of above-mentioned tube reducing mould 10, limit the off-centre between this pipe 4 and the tube reducing mould 10 for workpiece 4.

According to above-mentioned the present invention, the clamping device 3 of pipe is housed on the one end 1b of tubular body 1, on he the end 1c of this tubular body 1 pressure cylinder device 8 is housed, on the output shaft 8a of this pressure cylinder device 8, balladeur train 9 is housed, it can slide vertically at the inwall of the 10a of cylinder body portion of above-mentioned tubular body 1, tube reducing mould 10 on this balladeur train 9 cooperates towards the pipe 4 of above-mentioned clamping device 3, these tube reducing mould 10 the insides be formed with move back pull out the 10a of portion and with the chamfered section 10b of its adjacency, therefore on an end of pipe 4 when the portion of pulling out is moved back in formation chamfered section also in a procedure, process, and can constitute light movable mechanism, use operation also simple, also have, just can start with the electric power about 1 kilowatt.So, can be carried to the on-the-spot use of tubulature.Because structure is so simple, needn't use special machining tool just can change clamping device and tube reducing mould etc.

Fig. 4 is that pipe according to the present invention moves back the plane that a part of pulling out portion's tube reducing chamfering device is cut open, and Fig. 5 is the same side view, and Fig. 6 is the amplification profile diagram of broken circle A portion among Fig. 4.Fig. 1 is the sectional drawing of the retreat stubb screwed pipe that has earlier, and Fig. 2 is that pipe moves back and pulls out the sectional drawing of scribing the pipe behind the screw thread after the tube reducing processing, and Fig. 3 is that pipe moves back the sectional drawing that pulls out the pipe after tube reducing and chamfer machining are implemented.

Claims

1, to move back the feature of pulling out portion's tube reducing chamfering device be to be made up of following each one to pipe:

The tubular body;

Be contained in the clip parts of the tubulose machining object on the end of above-mentioned tubular body;

Be contained on his end of above-mentioned tubular body the pressure cylinder device that its output shaft extends to the tubular body interior;

Be contained on the above-mentioned output shaft, drive rotation by output shaft, in above-mentioned tubular inner body wall along the balladeur train that axially is free to slide;

Be engaged on the above-mentioned balladeur train, and then balladeur train tubulose machining object that move and that be contained in the above-mentioned clip parts is chimeric, and the tube reducing mould portion of moving back the portion of pulling out and chamfered section is arranged.

2, move back as the pipe in the claim 1 and pull out portion's tube reducing chamfer processing method and device, it is characterized by, utilize the sliding action of above-mentioned tube reducing mould portion, the deviation between the tubulose machining object of by clip and the central shaft of tube reducing mould portion is revised.

3, move back as the pipe in the claim 1 and pull out portion's tube reducing chamfer processing method and device, it is characterized by, contain above-mentioned chamfered section the tube reducing mould part and have above-mentioned tube reducing mould part of moving back the portion of pulling out can be freely formation one with installing and removing.