CN2205750Y

CN2205750Y - Arc shaper for hollow elbow

Info

Publication number: CN2205750Y
Application number: CN 94218311
Authority: CN
Inventors: 江进范
Original assignee: Laoshan Mountain Electric Door Factory
Current assignee: Laoshan Mountain Electric Door Factory
Priority date: 1994-08-13
Filing date: 1994-08-13
Publication date: 1995-08-23
Anticipated expiration: 2004-08-13

Abstract

The utility model relates to an arc shaper for hollow elbows, comprising a bed 1, a driving device 4, and a rotary table 2, wherein, the rotary table 2 is provided with a die 7 with a clamping device 11; corresponding to the die 7, the bed 1 is provided with a pinch wheel 3; on the same side with the pinch wheel 3, a supporting wheel 20 is arranged; a support piece 6 with a roller 9 is arranged between the pinch wheel 6 and the die 7; a draw rod 5 fixedly connected with the support piece 6 is arranged in a locating piece 16 with a trough and limited by a limiting stopper 10. While in operation, a hollow pipe 8 is sheathed in the support piece 6 through the clamping device on the die 7, and compressed by a clamp bolt 17. The required arc can be bent by the driving device driving the die 7 to rotate. The bent arc is smooth and flat and has high productive efficiency.

Description

Arc shaper for hollow elbow

The utility model relates to hollow pipe bent arc building mortion.

Often need carry out bending to various hollow pipes in industrial production, the general requirement of sweep is circular-arc rounding off.These hollow pipes comprise rectangular tube, rectangular tube, special pipe and round tube.Hollow pipe is carried out bending, especially rectangular tube one class hollow pipe is carried out bending, the crooked position inboard is prone to problems such as fold, indent, out-of-flatness.The bending apparatus more complicated that has, the cost height.

The purpose of this utility model provides a kind of simple, practical hollow pipe bending apparatus, can guarantee that fold, non-indent, smooth surface are not smooth at crooked circular arc position.

The utility model is achieved in that hollow pipe arc of curvature building mortion comprises lathe bed, transmission device, rotary table.The bent arc mould that has clamping device is installed on the rotary table.Pinch roller is equipped with at the position of bent arc mould correspondence on the lathe bed.Pinch roller links to each other with regulating handle by leading screw and nut mechanism.Pinch roller, regulating handle are installed on the pinch roller support.The pinch roller support is fixed on the lathe bed by set bolt.For preventing the pinch roller swing, the pinch roller support is provided with the angle alignment pin.Lathe bed one end is provided with the locating piece of trough of belt.One expansion roller piece places between mould and the pinch roller, and the one end is positioned at the hollow pipe crooked position, and the other end links to each other with pull bar.The other end of pull bar links to each other with limited block.Limited block places the outside of trough of belt locating piece.Support wheel is by support and being bolted on the lathe bed, with the pinch roller homonymy.

The both sides of expansion roller piece are provided with roller.

The clamp body of clamping device and mould are connected on the mould, are provided with briquetting in the clamp body, and briquetting one side is provided with hold-down bolt.

During work, the hollow pipe material passes in the hole of clamping device on the mould, and is inserted in the expansion roller piece.By regulating handle pinch roller is pressed on the hollow pipe, regulates support wheel simultaneously and withstand the hollow pipe material, prevent the displacement in process of pipe material.By hold-down bolt and briquetting the hollow pipe material is pressed in the clamping device.Connect motor power, drive the rotary table rotation by sprocket wheel, chain and worm-and-wheel gear, meanwhile mould drives the rotation of hollow pipe material by the clamping device on it, and the hollow pipe material is bent to and the corresponding circular shape of mold radius.

The utility model has the advantages that: 1, the circular arc after the hollow pipe bending is smooth smooth, and no wrinkle produces; 2, change the radius that mold radius can change crooked circular arc; 3, more mold exchange and roller bearing piece, just can process the different cross section shape tubing, as rectangular tube, rectangular tube, special pipe, pipe etc.; 4, the production efficiency height is all finished in work by machinery.

Fig. 1 is an A-A cutaway view of the present utility model;

Fig. 2 is a vertical view of the present utility model;

Fig. 3 is a B-B cutaway view of the present utility model;

Fig. 4 is the enlarged drawing of expansion roller piece;

Fig. 5 is that the C of device for clamping mould is to revolved view.

The utility model is described in further detail below in conjunction with accompanying drawing: hollow pipe bent arc building mortion comprises lathe bed 1, rotary table 2, pinch roller 3, transmission device 4.Mould 7 is installed on the rotary table 2, and a clamping device 11 is connected on the mould 7.Clamping device 11 has the clamp body 19 of a hollow.A briquetting 18 that is used for compressing the pipe material is arranged in the clamp body 19.Briquetting 18 is pressed on the pipe material by hold-down bolt 17, or unclamps from the pipe material.Pinch roller 3 is contained in and mould 7 corresponding positions.Pinch roller 3 is contained on the pinch roller support 12.Pinch roller support 12 is fixed on the lathe bed 1 by set bolt 13.Pinch roller 3 can be by the position of regulating handle 15 adjustings with respect to mould 7.For preventing pinch roller 3 deflections, pinch roller support 12 is provided with angle alignment pin 14.One end of lathe bed 1 is provided with the locating piece 16 of trough of belt.Rest pad 6 one ends of band roller 9 place between pinch roller 3 and the mould 7, and the other end and pull bar 5 are connected.Pull bar 5 places the locating piece 16 of trough of belt.The rest pad 6 of band roller 9 is by limited block 10 location of pull bar 5 terminations.On the lathe bed 1, the homonymy of pinch roller 3 is equipped with support wheel 20, prevents rest pad 6 and hollow pipe 8 displacement in process with roller 9.

Add man-hour, hollow pipe 8 passes the clamping device 11 on the mould 7, and is inserted in the rest pad 6 of band roller 9.By hold-down bolt on the clamping device 11 17 and briquetting 18 hollow pipe 8 is compressed.Make pinch roller 3 relative moulds 7 push down hollow pipe 18 by regulating handle 15.Connect power supply, the motor of transmission device 4 drives rotary table 2 and mould 7 revolutions by sprocket wheel, chain and worm gear, worm mechanism.During mould 7 revolutions, the clamping device 11 on it drives hollow pipe 8 and carries out bending forming.Because the supporting role of support wheel 20, the rest pad 6 of BENDING PROCESS hollow core barrel 8 and band roller 9 can not produce displacement on lathe bed 1, guarantee bending quality.

Claims

1, a kind of hollow pipe bent arc building mortion comprises lathe bed, transmission device, rotary table, it is characterized in that installing on the rotary table bent arc mould that has clamping device; Pinch roller is equipped with at the position of bent arc mould correspondence on the lathe bed; Pinch roller links to each other with regulating handle by leading screw and nut mechanism; Pinch roller, regulating handle are installed on the pinch roller support; The pinch roller support is fixed on the lathe bed by set bolt; The pinch roller support is provided with the angle alignment pin that prevents the pinch roller swing; Lathe bed one end is provided with the locating piece of trough of belt; One expansion roller piece places between mould and the pinch roller, and the one end is positioned at the hollow pipe crooked position, and the other end links to each other with pull bar; Pull bar places the groove of trough of belt locating piece; The other end of pull bar links to each other with limited block; Limited block places the outside of trough of belt locating piece; Support wheel is by support and being bolted on the lathe bed, with the pinch roller homonymy.

2, by the described hollow pipe bent arc of claim 1 building mortion, it is characterized in that expansion roller piece both sides are equipped with roller.

3, by the described hollow pipe bent arc of claim 1 building mortion, it is characterized in that the clamp body of clamping device on the mould and mould are connected; Be provided with briquetting in the clamp body, briquetting one side is provided with hold-down bolt.