CN1193840C

CN1193840C - Thin-wall tube downhole edge-curling machine

Info

Publication number: CN1193840C
Application number: CNB021568375A
Authority: CN
Inventors: 郝国安
Original assignee: Boshenglun Sci & Tech Development Co Ltd Beijing
Current assignee: Boshenglun Sci & Tech Development Co Ltd Beijing
Priority date: 2002-12-19
Filing date: 2002-12-19
Publication date: 2005-03-23
Anticipated expiration: 2022-12-19
Also published as: CN1507965A

Abstract

The present invention relates to an in-hole flanging machine for a thin-wall tube, which comprises a punching head, a base, lining dies, wedges, a die holder, reset springs and fixing bolts of the reset springs, the die holder forms a column shape, the middle part of the die holder is provided with a notch, both ends of the die holder are respectively provided with an axial spring hole, the reset springs are arranged in the axial spring holes, and both outer ends of the axial spring holes are screwed with the fixing bolts; the lower part of the notch is symmetrically provided with two opposite wedges, both ends of the wedges are butted with the inner ends of the two reset springs, the interface of two inclined surfaces of the wedges is provided with a V-shaped groove, lining dies are positioned on the wedges, the center of each lining die is provided with a longitudinal punching hole which is matched with the punching head positioned above the punching hole, the edge of the upper end of the punching hole is provided with a horn mouth, the root of the punching head is provided with a flange matched with the horn mouth, the top of the punching head is a V-shaped blade, the die holder is arranged in a groove of the base, a gap is arranged between the die holder and the groove, and the die holder is interconnected with the groove by a stop lever. When the punching head of the present invention punches downwards, the wedges are separated towards both sides. The inclined surfaces of the wedges pull the lining die upwards to face out the edge of the hole of the machined tube, and a flanging is formed by punching with the oblique flange of the root of the punching head. The present inventino has the advantages of simple and reasonable structure and easy application.

Description

Thin-wall pipes hole in-flanges machine

Technical field

The present invention relates to a kind of drawing equipment, particularly a kind of thin-wall pipes hole in-flanges machine.

Background technology

Often need be in some devices with the mutual cross-join of metal pipe material, it is exactly to process a plurality of holes, an end of connection water pipe on each hole on the wall with the last lower header of tubulose that a kind of radiator commonly used is for example arranged.Generally adopt at present the method for punching on tube wall, the welding that again water pipe inserted in the hole, the contact-making surface between hydroecium and the water pipe is the wall thickness of hydroecium substantially, because solder side is narrow, the welding leak often occurs and produce waste product, or service life is short, weld strength is not high.In order to address the above problem, should increase the width of solder side, at first to make the contact-making surface that a broad is arranged between hydroecium and the water pipe, the best way is that the edge with hydroecium water pipe hole processes inside flange (crimp), also process the reducing of cooperation at the two ends of water pipe, and adopt the method for soldering to make between both contact-making surface to be full of scolder.And also do not have at present a kind of equipment that is used for processing the flange in light wall pipe material hole specially.

Summary of the invention

The problem to be solved in the present invention just provides a kind of equipment that is used for forming at the cinclides edge of thin-wall pipes in-flanges specially.

Technical scheme of the present invention is: comprise drift, pedestal, lining mould, wedge, die holder, back-moving spring and set bolt thereof, the die holder profile is a cylindricality, and a recess is arranged in the middle, and an axle spring hole is respectively arranged at its two ends, place back-moving spring in this hole, be rotary with set bolt in two outer ends in this hole; Symmetry is placed two relative wedges in the bottom of above-mentioned recess, low inclined-plane, high two ends in constituting above it, stile is upwards respectively arranged at the two ends on this inclined-plane, this stile withstands on the inner of described two back-moving springs, on the interface on two inclined-planes of wedge, a V-shaped groove is arranged, on wedge, place the lining mould, there is identical inclined-plane the lower surface of this lining mould with the inclined-plane of wedge, lining mould central authorities have punching longitudinally and with the drift coaxial cooperation that is positioned at its top, upper end-face edge in this punching has a horn mouth, root at drift has the flange that cooperates with this horn mouth, the top of drift is the V-arrangement sword, two ends respectively are connected with a spring bearer plate on described die holder, the inner of this pressing plate extend to described lining mould above; Described die holder places in the groove of pedestal, leaves the gap between the two and interconnects by backstay; Between the both sides of the upper end of pedestal, be connected with cover plate.

Inclined-plane on the described wedge and the angle between the bottom surface are 35 °.

During the downward punching press of drift of the present invention, wedge is separated to both sides, the inclined-plane of wedge will serve as a contrast the edge that mould upwards promotes to withstand the hole of processed tubing, form crimp with the oblique flange punching press of drift root.It is simple and reasonable for structure, implements easily.

Description of drawings

Fig. 1 is a side of the present invention cross-sectional schematic;

Fig. 2 is the vertical view (not containing drift) of Fig. 1;

Fig. 3 is the right view of Fig. 1;

Fig. 4 is the structural representation that the present invention serves as a contrast mould;

Fig. 5 is the lateral plan of wedge;

Fig. 6 is the left view of Fig. 5;

Fig. 7 is the structure chart of die holder of the present invention, and wherein a figure is axial cutaway view; B figure is the A-A cutaway view of a figure.

The specific embodiment

Referring to Fig. 1-Fig. 7, the present invention includes drift 1, pedestal 2, lining mould 3, wedge 4, die holder 5, back-moving spring 6 and set bolt 7 thereof, the profile of die holder 5 is cylindricality (identical with the profile of work piece), one recess 51 (referring to Fig. 7) is arranged in the middle, one axle spring hole 52 is respectively arranged at its two ends, place back-moving spring 6 in this hole, be rotary with set bolt 7 in two outer ends in this hole; Symmetry is placed two relative wedges 4 in the bottom of above-mentioned recess 51, low inclined-plane 41, high two ends in constituting above it, stile 42 is upwards respectively arranged at the two ends on this inclined-plane, this stile 42 withstands on the inner of described two back-moving springs 6, on the interface on two inclined-planes 41 of wedge 4, a V-shaped groove 43 is arranged, place lining mould 3 on wedge 4, match with the inclined-plane of wedge 41 in the lower surface of this lining mould 3, preferred 35 ° of the angle between inclined-plane and the bottom surface.The lining mould, central authorities have punching longitudinally 31 and with drift 1 coaxial cooperation that is positioned at its top, at the upper end-face edge of this punching 31 horn mouth is arranged, at the root of drift 1 flange 11 that cooperates with this horn mouth is arranged.The top of drift 1 is the V-arrangement sword.Two ends respectively are connected with a spring bearer plate 8 on described die holder 5, the inner of this pressing plate 8 extend to described lining mould 3 above; Described die holder 5 places in the groove of pedestal 2, leaves the gap between the two and interconnects and locate by backstay 9; Between the both sides of the upper end of pedestal 2, be connected with cover plate 10, be used for pushing down die holder 5.

The course of work of the present invention is as follows:

The tubing A that processes the hole is inserted in the gap of die holder 5 of the present invention and pedestal 2, align on the porose side direction and with drift 1, start drift 1 downward punching press, when the V-arrangement sword of its end is inserted into the V-shaped groove 43 at top between two wedges with two wedges 4 separately, they are moved to two ends, its inclined-plane 41 upwards promotes lining mould 3 the edge downside in tubing A hole is propped up, and along with drift 1 continues to move down, the inclined-plane flange 11 of its root is shaped to the flange that needs with the edge in hole.After finishing a flange, drift 1 is upwards extracted out, and this moment, the back-moving spring 6 at wedge 4 two ends promoted wedge 4 to intermediate reset, and the spring bearer plate 8 that is positioned at the two ends above the lining mould 3 simultaneously also promotes lining mould 3 downwards, impel it to reset, carry out the flange in next hole is prepared.

Claims

1, a kind of thin-wall pipes hole in-flanges machine, it is characterized in that: comprise drift, pedestal, lining mould, wedge, die holder, back-moving spring and set bolt thereof, the die holder profile is a cylindricality, one recess is arranged in the middle, one axle spring hole is respectively arranged at its two ends, place back-moving spring in this hole, be rotary with set bolt in two outer ends in this hole; Symmetry is placed two relative wedges in the bottom of above-mentioned recess, low inclined-plane, high two ends in constituting above it, stile is upwards respectively arranged at the two ends on this inclined-plane, this stile withstands on the inner of described two back-moving springs, on the interface on two inclined-planes of wedge, a V-shaped groove is arranged, on wedge, place the lining mould, there is identical inclined-plane the lower surface of this lining mould with the inclined-plane of wedge, lining mould central authorities have punching longitudinally and with the drift coaxial cooperation that is positioned at its top, upper end-face edge in this punching has a horn mouth, root at drift has the flange that cooperates with this horn mouth, the top of drift is the V-arrangement sword, two ends respectively are connected with a spring bearer plate on described die holder, the inner of this pressing plate extend to described lining mould above; Described die holder places in the groove of pedestal, leaves the gap between the two and interconnects by backstay; Between the both sides of the upper end of pedestal, be connected with cover plate.

2, thin-wall pipes according to claim 1 hole in-flanges machine, it is characterized in that: inclined-plane on the described wedge and the angle between the bottom surface are 35 °.