CN102601447A

CN102601447A - High-speed punching shear fixture of high-frequency pipe welding unit

Info

Publication number: CN102601447A
Application number: CN2011100272712A
Authority: CN
Inventors: 史文军; 叶乃威
Original assignee: Ningbo Baoxin Stainless Steel Co Ltd
Current assignee: Ningbo Baoxin Stainless Steel Co Ltd
Priority date: 2011-01-20
Filing date: 2011-01-20
Publication date: 2012-07-25
Anticipated expiration: 2031-01-20
Also published as: CN102601447B

Abstract

The invention relates to a high-speed punching shear fixture of a high-frequency pipe welding unit, which comprises a traction base (1) and a first moving base (2). The first moving base (2) is mounted on the traction base (1) by a slide groove structure and can slide left and right relative to the traction base (1), and a first T-shaped groove (21) used for mounting a first pipe clamp (3) is disposed on the first moving base (2). The high-speed punching shear fixture is characterized by further comprising a second moving base (4), the second moving base (4) is fixed relative to the traction base (1), a second T-shaped groove (41) used for mounting a second pipe clamp (5) is arranged on the second moving base (4), and a spring buffering device matching with the first moving base (2) is disposed in the second moving base (4). The first moving base and the traction base are independent mutually, the spring buffering device matching with the first moving base is arranged in the second moving base, impact of the second moving base to the traction base is reduced when the first moving base and the second moving base are close to each other in a clamping manner, stress concentration points of a fixture device are eliminated, and breakage of the fixture is effectively prevented.

Description

Ratio-frequency welded tube unit high speed punching anchor clamps

Technical field

The present invention relates to a kind of anchor clamps, relate in particular to a kind of ratio-frequency welded tube unit high speed punching anchor clamps.

Background technology

Stainless steel ratio-frequency welded tube unit is that the stainless steel strip behind the itemize is processed into tubulose through make-up machine; Be welded into welded tube through high-frequency induction welder and adopt the high speed punching to carry out the continuous-output machine group of cutting to length again, this produces unit by two uncoilers, welding machine, band steel kink, pipe forming apparatus, high-frequency induction welder, inside and outside burr removal device, anti-recking means for cargo, eddy-current crack detector, diameter-setting equipment, straightener, high speed punching and shearing device and steel pipe collecting device etc. are formed end to end.The unit speed of production is 120m/min, maximum caliber 76mm.Its high speed punching equipment is to be provided by Italian OLIMPIA company.The punching dolly is installed on 3 4.5 meters long tracks through 6 slipper bearings, realizes moving back and forth through motor and gear-box.The punching anchor clamps are installed on the punching dolly, and the mould of different tube diameters is fixed by bolts on the anchor clamps, and the linkage that has cutting edge through hydraulic cylinder is sheared.

Shearing anchor clamps mainly is made up of traction base, movable base and first pipe clamp, second pipe clamp.The traction base is fixed on through chute can be done on the punching dolly perpendicular to the pipeline moving movement; Movable base can slide on the traction base, and first pipe clamp has two, and they adopt the T-shape key to be installed on the movable base at interval; First pipe clamp can be changed according to caliber; Second pipe clamp has two, and they also adopt the T-shape key to be installed on the traction base, and second pipe clamp can be changed and move with the traction base according to caliber.During shearing; The moving guide post of shearing of hydraulic cylinder pressure zone is depressed and is inserted in the traction base guide hole, drives whole anchor clamps and in shearing dolly, slides, and makes second pipe clamp near pipe fitting to be cut; The traction base moves simultaneously, makes first pipe clamp approach pipe fitting to be cut and clamps steel pipe.When clamping, the gap of cutting edge between adjacent two first pipe clamps and adjacent two second pipe clamps cuts off welded tube to down cut.Subject matter is that guide post is depressed, when shear force acts on first pipe clamp and second pipe clamp when shearing; Also pass to the traction base, between the traction base and second pipe clamp, produce pulling force by shearing guide post and shearing force like this, under high speed, high-frequency impact through the movable base place; Traction base position stress is concentrated; Receive tensile for a long time and cause fracture, cause the steel pipe folder flat, compressor emergency shutdown.

These structure anchor clamps are at ratio-frequency welded tube unit back two sleeve clamps that just ruptured in less than the time of half a year of going into operation, and the standby redundancy renewal cost reaches 300,000 yuan and domestic can not the manufacturing must import, causes the flat reservation of welded tube end clips, and the compressor emergency shutdown loss is huge.

Summary of the invention

Technical problem to be solved by this invention is the ratio-frequency welded tube unit high speed punching anchor clamps that a kind of centrostigma that effectively eliminates stress is provided to above-mentioned prior art present situation; Prevent pipe clamp and movable base junction fracture accident, the service life of having improved anchor clamps take place.

The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of ratio-frequency welded tube unit high speed punching anchor clamps; Include the traction base and first movable base; First movable base through the chute structure be installed in the traction base on and can draw the slippage of the base left and right sides relatively; First movable base has in order to a T type groove of first pipe clamp to be installed, and it is characterized in that: also comprise second movable base, second movable base and traction base relative fixed; Second movable base has in order to the 2nd T type groove of second pipe clamp to be installed, and is provided with the spring bumper that cooperates with first movable base in second movable base.

Above-mentioned spring bumper comprises push rod; Have the installing hole that laterally runs through in said second movable base; Said push rod is located in this installing hole and laterally slippage; Be arranged with spring on the said push rod, this spring is positioned at installing hole and acts on push rod, makes the outer second movable base trend of stretching out of the inner maintenance of push rod.This spring bumper has advantage easy to assembly simple in structure.

Above-mentioned push rod has annular shoulder, is fixed with end cap on the second movable base outer face, and end cap can be stretched out in the outer end of said push rod, and an end of said spring holds on annular shoulder, and the other end of spring holds on end cap.

Better play cushioning effect for making between first movable base and second movable base, above-mentioned spring bumper has two covers.

Compared with prior art; The invention has the advantages that: though second movable base interfixes with the traction base; But it is separate again each other; Eliminated in original grip device the stress concentration point on the traction base, and be provided with the spring bumper that cooperates with first movable base in second movable base, like this when first movable base and second movable base clamp each other near the time; Reduce of the impact of second movable base, further avoided the anchor clamps fracture to cause steel pipe to press from both sides the generation of flat accident the traction base.

Description of drawings

Fig. 1 is the perspective view of the embodiment of the invention;

Fig. 2 is the structure cutaway view of the embodiment of the invention;

Fig. 3 is the user mode figure of the embodiment of the invention.

The specific embodiment

Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.

Shown in Fig. 1～3, be a specific embodiment of the present invention.

A kind of ratio-frequency welded tube unit high speed punching anchor clamps; Include the traction base 1 and first movable base 2, traction base 1 relative fixed is on the punching dolly during use, and first movable base 2 has in order to a T type groove 21 of first pipe clamp 3 to be installed; The bottom of first movable base 2 has chute 22; Traction base 1 passes this chute, so first movable base 2 can draw base 1 left and right sides slippage relatively, these are the conventional structure of existing punching anchor clamps.

Also comprise second movable base 4 that is fixed on the punching dolly; Second movable base 4 and traction base 1 relative fixed; Second movable base 4 has in order to the 2nd T type groove 41 of second pipe clamp 5 to be installed; Be provided with the spring bumper that cooperates with first movable base 2 in second movable base 4, spring bumper has two covers, the parallel interval setting.

Every sleeve spring buffer unit comprises push rod 6, and push rod 6 has in annular shoulder 61, the second movable bases 4 and has the installing hole 42 that laterally runs through; Push rod 6 is located in this installing hole 42 and laterally slippage, and second movable base is fixed with end cap 8 on 4 outer faces, and end cap 8 adopts screw to fix; End cap 8 can be stretched out in the outer end of push rod 6; Be arranged with spring 7 on the push rod 6, this spring 7 is positioned at installing hole 42, and an end of spring 7 holds on annular shoulder 61; The other end of spring 7 holds on end cap 8, so this spring 7 has outer second movable base, 4 trend of stretching out of the push rod of making 6 inner maintenances.

During use; Two first pipe clamps, 3 usefulness T types strong 9 are installed to 21, two second pipe clamps of a T type groove, 5 usefulness T types strong 9 at interval are installed in the 2nd T type groove 41 at interval, second movable base 4 is fixed on shears on the dolly simultaneously; Draw this moment base 1 also relative fixed shearing on the dolly; When first movable base 2 and second movable base 4 near after, first pipe clamp 3 and second pipe clamp 5 clamp each other, form the folder mouth of clamping welded tube.

Because though second movable base 4 interfixes with traction base 1; But it is separate again each other; And first be provided with spring bumper between movable base 2 and second movable base 4, thus when first movable base 2 and second movable base 4 each other near the time, reduce impact to second movable base 4 and traction base 1; Eliminate the stress concentration point between second movable base 4 and the traction base 1, effectively avoided the anchor clamps fracture to cause steel pipe to press from both sides the generation of flat accident.

Through above corrective measure, obtained better effects: 1. eliminated the stress concentration point of device, the service life of having improved anchor clamps, the consumption costs of reduction standby redundancy.2. increased the security of equipment.Fracture accident does not take place in the technological innovation rear jig, has eliminated the hidden danger of this device, has guaranteed the stable operation of punching and shearing device.

Claims

1. ratio-frequency welded tube unit high speed punching anchor clamps; Include traction base (1) and first movable base (2); First movable base (2) is installed on the traction base (1) through the chute structure and can draws base (1) left and right sides slippage relatively; First movable base (2) has in order to a T type groove (21) of first pipe clamp (3) to be installed, and it is characterized in that: also comprise second movable base (4), second movable base (4) and traction base (1) relative fixed; Second movable base (4) has in order to the 2nd T type groove (41) of second pipe clamp (5) to be installed, and is provided with the spring bumper that cooperates with first movable base (2) in second movable base (4).

2. ratio-frequency welded tube unit high speed punching anchor clamps according to claim 1; It is characterized in that: said spring bumper comprises push rod (6); Have the installing hole (42) that laterally runs through in said second movable base (4), said push rod (6) is located in this installing hole (42) and laterally slippage, is arranged with spring (7) on the said push rod (6); This spring (7) is positioned at installing hole (42) and acts on push rod (6), makes outer second movable base (4) trend of stretching out of the inner maintenance of push rod (6).

3. ratio-frequency welded tube unit high speed punching anchor clamps according to claim 2; It is characterized in that: said push rod (6) has annular shoulder (61); Second movable base (4) is fixed with end cap (8) on the outer face; End cap (8) can be stretched out in the outer end of said push rod (6), and an end of said spring (7) holds on annular shoulder (61), and the other end of spring (7) holds on end cap (8).

4. according to claim 2 or 3 described ratio-frequency welded tube unit high speed punching anchor clamps, it is characterized in that: said spring bumper has two covers.