CN102407269A

CN102407269A - Rapid die release mechanism of vertical pipe expansion machine

Info

Publication number: CN102407269A
Application number: CN2011103863061A
Authority: CN
Inventors: 郑良才
Original assignee: Ningbo Jingda Forming Equipment Co Ltd
Current assignee: Ningbo Jingda Forming Equipment Co Ltd
Priority date: 2011-11-29
Filing date: 2011-11-29
Publication date: 2012-04-11
Anticipated expiration: 2031-11-29
Also published as: CN102407269B

Abstract

The invention provides a rapid die release mechanism of a vertical pipe expansion machine, which comprises a die release base, lower screws and nuts and is characterized in that lower screws are vertically arranged at two sides of the die release base, the upper nuts are arranged at the upper ends of the lower screws, die release cylinders are arranged on two side surfaces of the die release base, and piston rods of the die release cylinders are connected with the nuts. The die release base can be quickly moved through the arrangement of the die release cylinders on a die release plate, and the work efficiency is improved. Due to arrangement of a climb, the rapid die release mechanism is convenient for operation and maintenance on one side, and the anti-bending capability of the rapid die release mechanism can be enhanced on the other side.

Description

Vertical pipe expander moves back mold mechanism fast

Technical field

The present invention relates to a kind of vertical pipe expander.

Background technology

Electric tube expander is to be used for making it to combine closely with fin with placing the numerous heat exchanger pipe fitting diameters in the fin to swell, and avoids producing and becomes flexible, and increases the heat conductivility of heat exchanger, in addition pipe fitting end is carried out enlarging and flange, is beneficial to carry out next procedure.

Existing vertical pipe expander comprises base, is installed in frame, power seat, the enlarging seat on the base and moves back die holder; Expander roll is installed on the power seat, and expander roll passes a plurality of gripper shoes and by the gripper shoe fixed support, moves back die holder and generally driven by the screw body that is installed on the support; The nut of screw body directly is fixed on and moves back on the die holder; Therefore move back moving of die holder and rely on screw body fully, translational speed is slower, and operating efficiency is lower.

Summary of the invention

Technical problem to be solved by this invention is to overcome the above-mentioned defective of prior art and provide a kind of vertical pipe expander to move back mold mechanism fast, makes it fast moving move back die holder.

The present invention solves the problems of the technologies described above the technical scheme that is adopted:

Vertical pipe expander moves back mold mechanism fast; Comprise and move back die holder, following screw mandrel and nut, it is characterized in that: following screw mandrel is erected at and moves back the die holder both sides, and nut is installed in its upper end; Described move back on the die holder two sides to install move back the mould cylinder, the described piston rod that moves back the mould cylinder is connected with nut.

The above-mentioned die holder top mounting spring of moving back supports the enlarging seat.

Also in pedestal a cat ladder is set, described cat ladder below is fixed on the base, and upper fixed is on frame.

Compared with prior art, the invention has the advantages that:

1. through moving back the mould cylinder moving back on the template to install, but fast moving is moved back die holder, increases work efficiency.

2. through a cat ladder is installed, operating maintenance is convenient on the one hand, but the also counter-bending ability of enhancement apparatus simultaneously.

Description of drawings

Fig. 1 contains the stereogram that vertical pipe expander moves back mold mechanism fast for the embodiment of the invention.

Fig. 2 for embodiment of the invention vertical pipe expander not with the stereogram of workbench.

The part stereogram that Fig. 3 moves back mold mechanism fast for embodiment of the invention vertical pipe expander contains.

The specific embodiment

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

Like Fig. 1,2, shown in 3, vertical pipe expander comprises base 1, and portal frame 10 is installed on it, and the line slideway 16 that is parallel to each other is installed on 10 2 leading flanks of frame separately, and the interior side rails 101 that is parallel to each other is installed on 10 2 medial surfaces of frame separately.

Force transmission rack 8 places in the frame 10; 81 of roll wheel assemblies of installing through two sides are in frame on the side rails 101; And can move up and down along side rails in the frame 101; Force transmission rack 8 lower ends are connected with the nut 31 of ball screw 3, and ball screw 3 is installed on the below base 1 in the frame 10, and force transmission rack 8 upper side are installed power seat 9.

Expander roll 14 is installed on the expander roll locking device 21 of power seat 9 belows, and expander roll 14 passes a plurality of gripper shoes 7 and by a plurality of gripper shoe 7 fixed supports.

The mold mechanism that moves back fast that moves back die holder 4 is: following screw mandrel 2 and drive unit 201 thereof are installed on the base 1 that moves back die holder 4 belows; Feed screw nut 17 is down installed in following screw mandrel 2 upper ends; Move back mould cylinder 18 and be fixed on the side that moves back die holder, move back the piston rod of mould cylinder 18 and fix with following feed screw nut 17.

For making down feed screw nut's 17 stress equalizations and better moving, at the opposite side that moves back mould cylinder 18 piston rods relatively that descends feed screw nut 17 guide rod 41 is set, guide rod 41 passes down feed screw nut 17 sidepiece and is fixed on and moves back on the die holder 4, sees Fig. 3.

Above-mentioned move back die holder 4 tops also mounting spring support 5 (show among the figure and draw) of enlarging seat.

Like Fig. 1, shown in 2, also a cat ladder 20 is set in pedestal, described cat ladder 20 belows are fixed on the base 4, and upper fixed makes operating maintenance become easily on frame 1 on the one hand, has also strengthened the counter-bending ability of equipment simultaneously.

When the present embodiment vertical pipe expander moves back mold mechanism work fast; Drive unit 601 through upper screw rod 6 drives upper screw rod 6 rotations earlier; Thereby change its top nut 602 and with the position of the fixing enlarging seat 5 of top nut 602, the determining positions of nut 602 carry out the original position that pipe fitting expands cup-shaped recess and pipe end taper flange; Through the following drive unit 201 of screw mandrel 2, drive screw mandrel 2 rotations down, thereby change the position of its top nut 17, and then the position of moving back die holder 4 fixed of change and top nut 17 and the position of moving back die holder 4 relative workpiece 15; Through the position of ball screw 3 adjustment power seats 9, the i.e. initial position of expander roll 14 relative workpiece 15.

After adjusting finishes, on stacked rotary table, install workpiece 15 and clamping, move back 18 drives of mould cylinder and move back die holder 4, just can start working to next segment distance workpiece pressing.

Ball screw 3 drive force transmission racks 8, power seat 9, expander roll 14 move downward the beginning expand tube; After power seat 9 is run into the nut 602 on the upper screw rod 6; Drive enlarging seat 5 also moves downward and just begins to expand cup-shaped recess and the action of pipe end taper flange, and this moment, the expand tube action was still carried out, and waited and expanded cup-shaped recess and the release of pipe end taper flange; The expand tube action also finishes simultaneously; Power seat 9 drives expander rolls 14 and returns fast afterwards, moves back mould cylinder 18 and drives and move back die holder 4 segment distance that moves up fast, realizes moving back fast mould.

Though what present embodiment adopted is an electric tube expander of type frame, moving back die holder is that this type of vertical pipe expander moves back the essential parts of mold mechanism fast, and therefore this moves back mold mechanism fast and is applicable to that too the vertical pipe expander of other types moves back in the mold mechanism fast.

Claims

1. vertical pipe expander moves back mold mechanism fast; Comprise and move back die holder, following screw mandrel and nut, it is characterized in that: following screw mandrel is erected at and moves back the die holder both sides, and nut is installed in its upper end; Described move back on the die holder two sides to install move back the mould cylinder, the described piston rod that moves back the mould cylinder is connected with nut.

2. vertical pipe expander as claimed in claim 1 moves back mold mechanism fast, it is characterized in that: said feed screw nut's the opposite side that moves back the mould cylinder piston rod relatively down is provided with guide rod, and guide rod passes down feed screw nut's sidepiece and is fixed on and moves back die holder.

3. according to claim 1 or claim 2 vertical pipe expander moves back mold mechanism fast, it is characterized in that: the said die holder top mounting spring of moving back supports the enlarging seat.

4. according to claim 1 or claim 2 vertical pipe expander moves back mold mechanism fast, it is characterized in that: also in pedestal a cat ladder is set, described cat ladder below is fixed on the base, and upper fixed is on frame.