CN209272306U - Pipe end trimmer - Google Patents
Pipe end trimmer Download PDFInfo
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- CN209272306U CN209272306U CN201822136359.8U CN201822136359U CN209272306U CN 209272306 U CN209272306 U CN 209272306U CN 201822136359 U CN201822136359 U CN 201822136359U CN 209272306 U CN209272306 U CN 209272306U
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- die
- pipe
- oil cylinder
- expander
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Abstract
The utility model relates to a kind of pipe end trimmers.Driving end connection reducing die (3) of multi-stage oil cylinder including steel pipe two sides are arranged in, the multi-stage oil cylinder is perhaps connected with de- pipe die (5) on expander die (4) described reducing die (3) or expander die (4)；Realize that the undergauge of steel pipe, the inner surface that the expander die (4) is fastened on steel tube end part realize the expanding of steel pipe in the outer surface that the reducing die (3) is fastened on steel tube end part；The de- pipe die (5) contradicts on the steel tube end part surface.The reasonable setting that the pipe end trimmer of the utility model passes through reducing die, expander die, de- pipe die, and pass through level-one oil cylinder, the appropriate action sequence of two-level oil cylinder, utilize multi-stage expansion oil cylinder, it is alternately accomplished steel pipe and squeezes contracting (or pushing away expansion) and the realization of the mold by installing on multi-stage expansion oil cylinder easily demoulding, meet the expanding or undergauge demand of steel pipe.
Description
Technical field
The utility model relates to a kind of pipe end trimmer, undergauge or expansion of the pipe end trimmer for seamless steel pipe pipe end
Diameter.
Background technique
Existing hot rolled seamless steel tube generally uses two roller oblique milling composite perforating machines and roller trio skew rolling to turn round sizing mill sizing, by
Non-fully close steel pipe outer dimension in the roll of the interior type and ovality cannot get absolute guarantee, so in the case this
Just need to design that a kind of simplicity is quick and the cheap production equipment for fully meeting line pipe quality requirement, the equipment are fixed
Property be cold-pressing deformation equipment.
Utility model content
The utility model is in view of the foregoing drawbacks, and it is an object of the present invention to provide one kind is structurally reasonable, it is reasonable to carry out to pipe end
Undergauge, expanding pipe end trimmer.
The technical solution adopted in the utility model is thus: pipe end trimmer, the multi-grade oil including steel pipe two sides are arranged in
Cylinder, the driving end of the multi-stage oil cylinder connect reducing die (3) perhaps expander die (4) described reducing die (3) or expander die (4)
On be connected with de- pipe die (5)；
The undergauge of steel pipe is realized in the outer surface that the reducing die (3) is fastened on steel tube end part, and the expander die (4) is fastened on
The inner surface of steel tube end part realizes the expanding of steel pipe；
The de- pipe die (5) contradicts on the steel tube end part surface.
The multi-stage oil cylinder includes level-one oil cylinder (1) and two-level oil cylinder (2), the level-one oil cylinder (1) and two-level oil cylinder (2)
Formation is arranged in series, and the driving trip of level-one oil cylinder (1) and two-level oil cylinder (2) is made to form superposition.
The reducing die (3), expander die (4) and de- pipe die (5) are threadedly attached on two-level oil cylinder (2).
The reducing die (3) and de- pipe die (5), expander die (4) and de- pipe die (5) integrally connected.
Either expander die (4) end is arranged for moving to reducing die (3) or expander die (4) reducing die (3)
With guiding circular cone when steel pipe cooperation.
The utility model has the advantages that: the conjunction that the pipe end trimmer of the utility model passes through reducing die, expander die, de- pipe die
Reason setting, and be alternately accomplished steel pipe using multi-stage expansion oil cylinder by level-one oil cylinder, the appropriate action sequence of two-level oil cylinder and squeeze
Contracting (or pushing away expansion) and the mold by installing on multi-stage expansion oil cylinder, which are realized, easily to be demoulded, and the expanding or undergauge need of steel pipe are met
It asks.
Detailed description of the invention
Structural schematic diagram when Fig. 1 is the utility model draw.
Structural schematic diagram when Fig. 2 is the utility model expander.
1 it is level-one oil cylinder in figure, 2 be two-level oil cylinder, 3 be reducing die, 4 be expander die, 5 is de- pipe die.
Specific embodiment
The driving end of pipe end trimmer, the multi-stage oil cylinder including steel pipe two sides are arranged in, the multi-stage oil cylinder connects undergauge
Mould 3 is perhaps connected with de- pipe die 5 on the reducing die 3 of expander die 4 or expander die 4；
Realize that the undergauge of steel pipe, the expander die 4 are fastened on steel pipe in the outer surface that the reducing die 3 is fastened on steel tube end part
The inner surface of end realizes the expanding of steel pipe；
The de- pipe die 5 contradicts on the steel tube end part surface.
The multi-stage oil cylinder includes level-one oil cylinder 1 and two-level oil cylinder 2, and the level-one oil cylinder 1 and two-level oil cylinder 2 form series connection
Setting makes the driving trip of level-one oil cylinder 1 and two-level oil cylinder 2 form superposition.
The reducing die 3, expander die 4 and de- pipe die 5 are threadedly attached in two-level oil cylinder 2.
5 integrally connected of the reducing die 3 and de- pipe die 5, expander die 4 and de- pipe die.
The reducing die 3 or 4 end of expander die are arranged for making reducing die 3 or expander die 4 move to and match with steel pipe
Guiding circular cone when conjunction.
The working process of the utility model is as follows: the draw is as shown in Figure 1:
1) steel tube clamping cylinder is opened, steel pipe is clamped；
2) left and right first-stage cylinder can simultaneously work into also distinguishing work into according with steel pipe both ends its purpose is to draw sizing
Close size tolerance requirements；
3) left first-stage cylinder retreats right secondary cylinder work into its purpose is to realize that one end demoulds.
4) right first-stage cylinder retreats left secondary cylinder work into purpose is same as above.Service pressure 12-20MPa, first-stage cylinder and second level
The maximum thrust of cylinder is depending on the overproof situation of producer's steel pipe produced.
Expander is as shown in Fig. 2, work step:
(1) steel pipe is first hung on pipe end sizing mill rack the following same draw (1) step of operation；
(2) right first-stage cylinder forward work into 250mm,
(3) left secondary cylinder forward work into 200mm,
(4) right secondary cylinder forward work into 200mm,
(5) right first-stage cylinder retreats 200mm, left first-stage cylinder work into 200mm,
(6) left first-stage cylinder retreats 200mm, and right first-stage cylinder work is into 200mm.
According to each pushing process for repeating above-mentioned Fig. 1 to Fig. 2, until reach size needed for technique, thus complete in advance at
The finishing operations of quality control.
For processing technology in the utility model only to wall thickness≤35mm line pipe, outer dimension diameter is overproof in 0~6mm
The cold machining process of micro reducing and expansion sizing is carried out with the overproof seamless steel pipe in 0~6mm of ovality.
The utility model utilizes level-one oil cylinder 1 and two-level oil cylinder 2, is alternately accomplished steel pipe and squeezes contracting (or pushing away expansion) and pass through level-one
The mold installed on oil cylinder 1, two-level oil cylinder 2 realizes easily demoulding.
1.8~2.8 ° of deformation angle of the utility model steel pipe compacting mould, guide circular arc R25~R35.
Claims (5)
1. pipe end trimmer, which is characterized in that the multi-stage oil cylinder including steel pipe two sides are arranged in, the driving end of the multi-stage oil cylinder
Connection reducing die (3) is perhaps connected with de- pipe die (5) on expander die (4) described reducing die (3) or expander die (4)；
The undergauge of steel pipe is realized in the outer surface that the reducing die (3) is fastened on steel tube end part, and the expander die (4) is fastened on steel pipe
The inner surface of end realizes the expanding of steel pipe；
The de- pipe die (5) contradicts on the steel tube end part surface.
2. pipe end trimmer according to claim 1, which is characterized in that the multi-stage oil cylinder include level-one oil cylinder (1) and
Two-level oil cylinder (2), the level-one oil cylinder (1) and two-level oil cylinder (2) form and are arranged in series, and make level-one oil cylinder (1) and two-level oil cylinder
(2) driving trip forms superposition.
3. pipe end trimmer according to claim 2, which is characterized in that the reducing die (3), expander die (4) and de- pipe
Mould (5) is threadedly attached on two-level oil cylinder (2).
4. pipe end trimmer according to claim 1, which is characterized in that the reducing die (3) and de- pipe die (5), expanding
Mould (4) and de- pipe die (5) integrally connected.
5. pipe end trimmer according to claim 1, which is characterized in that the reducing die (3) or expander die (4) end
It is arranged for moving to reducing die (3) or expander die (4) and guiding circular cone when steel pipe cooperation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822136359.8U CN209272306U (en) | 2018-12-19 | 2018-12-19 | Pipe end trimmer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822136359.8U CN209272306U (en) | 2018-12-19 | 2018-12-19 | Pipe end trimmer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209272306U true CN209272306U (en) | 2019-08-20 |
Family
ID=67611954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822136359.8U Active CN209272306U (en) | 2018-12-19 | 2018-12-19 | Pipe end trimmer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209272306U (en) |
-
2018
- 2018-12-19 CN CN201822136359.8U patent/CN209272306U/en active Active
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