CN2564275Y

CN2564275Y - Program controlled double-power horizontal tube expander

Info

Publication number: CN2564275Y
Application number: CN 02272216
Authority: CN
Inventors: 罗仲孚
Original assignee: Zhongshan CLG Automation Equipment Co Ltd
Current assignee: Zhongshan CLG Automation Equipment Co Ltd
Priority date: 2002-07-31
Filing date: 2002-07-31
Publication date: 2003-08-06
Anticipated expiration: 2012-07-31

Abstract

The utility model discloses a horizontal program-controlled double-drive tube-expansion machine which comprises an expansion rod molding seat and a punch molding seat which can move freely in the left-right direction on a support base; wherein, an expansion rod is arranged on the expansion seat molding seat and a punch is arranged on the punch molding seat. The utility model is characterized in that a large silk rod parallel to the expansion rod is also arranged on the punch molding seat; the large silk rod is driven by a numerical control motor to make axial movement; a small silk rod driven by another numerical control motor to rotate is also arranged parallel to the expansion rod and is connected with the nuts arranged on the expansion rod molding seat; the two numerical control motors both are controlled by a micro-computer according to the set operation procedure, and the working order, speed and stroke of the expansion rod molding seat and the punch molding seat can be respectively set on the micro-computer according to the requirement to get the best parameters.

Description

Program control double dynamical horizontal type tube expanding machine

[technical field]

The utility model relates to a kind of horizontal type tube expanding machine.

[background technology]

The air conditioner production industry is in the process of producing heat exchanger of air condition, it is that numerous copper pipes of heat exchanger are processed that one procedure is arranged: be that the copper pipe diameter is swollen on the one hand, make it fully to contact, increase heat transfer efficiency, simultaneously fin is fixed with aluminium heat sink; In addition, also will swell into the cup-shaped of band bell edge to the copper pipe head, the copper pipe that is beneficial to other butt joints of next procedure inserts.The employed machine of this procedure is referred to as electric tube expander, if processed heat exchanger is relatively grown up, only is beneficial to processing under the state of couching, and employed machine then is called " horizontal type tube expanding machine ".

The domestic existing horizontal type tube expanding machine that appears on the market is a fluid pressure type.Its structure is seen Fig. 1, comprises an expander roll die holder 5 that is driven by oil cylinder 4, and the expander roll die holder is provided with and copper pipe 9 axial corresponding expander rolls 6, and in the stroke of expander roll die holder, expander roll can insert from the port of copper pipe, realizes the expansion to whole copper pipe diameter; Be provided with movable drift die holder on the stroke of expander roll die holder, the drift die holder is provided with the drift that is axially worn by the expander roll work, makes the drift die holder under the promotion of expander roll die holder, and drift can insert copper pipe end, realizes the expansion to copper pipe end.During work, motor 1 drives oil pump 2 and produces pressure oil liquid, drives oil cylinder 4, and piston rod promotes expander roll die holder 5, and the expander roll 6 that is contained on the expander roll die holder is moved.Expander roll enters copper pipe 9 and carries out expander roll, and when the expander roll head advanced near the copper pipe afterbody, expander roll die holder 5 contacted with drift die holder 7.This moment, expander roll die holder 5 was also in the continuation promotion, so promotion drift die holder 7 related drifts 8 are advanced to the copper pipe direction together.When expander roll die holder 5 advanced to the terminal point extreme position, just in time copper pipe 9 head punching out cup-shapeds, expander roll 6 heads were also just in time gone to copper pipe 9 tail ends to drift 8, afterwards, solenoid directional control valve 3 commutations, expander roll 6 and drift 8 are hauled out in the oil cylinder piston counter motion, and operation is finished.

Have following shortcoming: when expander roll swelled the copper pipe diameter, the copper pipe axial direction can produce a certain amount of contraction.This is inevitable.Because more or less there are some differences in copper pipe size, material, the club head diameter dimension that rises, so every copper pipe is all different in the amount of contraction of length direction.So it is uneven to show as copper pipe head height.Charge and attack the cup-shaped of copper mouth piece this moment, and the tube head that exceeds may be shaped too dark, causes oral area to break; Short tube head possibility aplasia needs manual dashing one by one to mend shaping.Certainly will have influence on product quality and production efficiency like this.Have again, when processing the heat exchanger of different size, need to adjust mechanical device position, many places, time-consuming and difficult grasp.

[utility model content]

The utility model purpose be to provide a kind of than existing horizontal type tube expanding machine to the copper mouth piece program control double dynamical horizontal type tube expanding machine more reliable and that be convenient to adjust that is shaped.

The program control double dynamical horizontal type tube expanding machine of the utility model design, but the expander roll die holder that comprises a move left and right on bearing, the expander roll die holder is provided with the expander roll of aiming at copper pipe, but the drift die holder that also comprises a move left and right on bearing, this drift die holder is provided with the drift that is axially worn by the expander roll work, described drift is in the stroke of drift die holder, can insert copper pipe end, realization is to the expansion of copper pipe end, it is characterized in that: described drift die holder is provided with a big wire role parallel with expander roll, and described big wire role is driven by a numerical-control motor and moves axially; Other is provided with by another numerical-control motor and drives and the minor leading screw that rotates, be arranged in parallel with expander roll, and is connected with nut on the expander roll die holder, and described two numerical-control motors are controlled by setting working procedure by microcomputer.

Further improvement as such scheme, it is characterized in that bearing be provided with two parallel with expander roll and can be along the guide pillar of bearing move left and right, and be listed in the both sides up and down of expander roll, the one end connects the drift die holder, the other end then is connected with crossbeam, and described big wire role one end is connected on the crossbeam.

Further improvement as such scheme, it is characterized in that: the expander roll die holder is provided with two perforation that are enclosed within on two guide pillars, make the expander roll die holder along guide pillar move left and right on bearing, the above-mentioned minor leading screw that is driven by numerical-control motor has two, respectively and be listed in the both sides up and down of expander roll, the nut that connects with minor leading screw on the expander roll die holder is corresponding to be provided with two.

Operation principle of the present utility model and advantage are such: the utility model drives expander roll die holder and drift die holder respectively with two numerical control electric machines of microcomputer control, realizes expand tube and the action that charges and attacks tube head respectively.The priority of two secondary moulds (expander roll die holder and drift die holder) operation, speed, stroke all can be set on microcomputer as required separately, can obtain optimum parameter.So the forming quality of tube head is better than existing horizontal type tube expanding machine greatly.Be actually and improved production efficiency and product quality.Owing to be microcomputer control,, only need on the control box of microcomputer, preset parameters to be accessed simultaneously, just can produce immediately, by hand electric tube expander is not done the position adjustment for the heat exchanger of different size (copper pipe length difference).Overall process is convenient, fast, reliable.

[description of drawings]

Fig. 1 is the structural representation of existing horizontal type tube expanding machine;

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

Fig. 3 is a vertical view of the present utility model;

Fig. 4 is drift and expander roll combining structure schematic diagram;

Fig. 5 is the enlarged drawing of Fig. 3 part " A ".

[specific embodiment]

With reference to figure 2, Fig. 3, Fig. 4 and Fig. 5, the program control double dynamical horizontal type tube expanding machine of the utility model design, but the expander roll die holder 12 that comprises a move left and right on bearing 11, expander roll die holder 12 is provided with upper and lower two

primary nuts

13,14, also be provided with the expander roll 16 that a row aims at copper pipe 15 on the expander roll die holder 12, make expander roll 16 in the stroke of expander roll die holder 12, can insert, realize expansion whole copper pipe 15 diameters from the port of copper pipe 15; Bearing 11 be provided with two parallel with expander roll 16 and can be on bearing 11

guide pillar

17,18 of move left and right, be set up in parallel both sides up and down at expander roll 16, guide pillar one end is connected with drift die holder 19, the other end then is connected with crossbeam 20.Guide pillar 17, guide pillar 18, drift die holder 19 and crossbeam 20 be linked to be one can be on bearing the integral body of move left and right, drift die holder 19 is provided with coaxial and made the drift 21 that axially wears by expander roll 16 with expander roll 16, drift 21 is in the stroke of drift die holder 19, can insert copper pipe 15 ports, realization is to the expansion of copper pipe 15 ports, crossbeam 20 is provided with a big wire role 22 parallel with expander roll 16, and a big nut 24 that is driven by numerical-control motor 23 is threaded on the big wire role 22; Expander roll die holder 12 is provided with two perforation 31 (32) that are enclosed within on two

guide pillars

17,18, expander roll die holder 12 is able to along

guide pillar

17,18 move left and right on bearing 11, two minor leading

screws

26,27 that drive by another numerical-control motor 25, be set up in parallel both sides up and down at expander roll 16, and be threaded with

primary nut

13,14 on the expander roll die holder 12, above-mentioned two numerical-

control motors

23,25 by microcomputer by setting working procedure control.

The power of numerical-control motor 23 drives big nut 24 after slowing down via reduction box 28 internal gears, and big nut 24 orders about connected big wire role 22 and does axially-movable, and drift die holder 19 is moved to the left or to the right; Numerical-control motor 25 is through power distribution case 29 drivings two minor leading

screws

26,27 rotations up and down, and minor leading

screw

26,27 drives expander roll die holder 12 when rotating and makes move left and right, and expander roll 16 is advanced left and then entered copper pipe 15 enforcement expand tubes, is then withdrawed from by copper pipe 15 when advancing to the right.When present embodiment is set in expander roll 16 on microcomputer head enters copper pipe 15 centre positions, drift 21 comes into effect the punching out to the termination of copper pipe 15, this moment, each copper pipe amount of contraction difference was very little, the termination of each copper pipe 15 can not show height differs, thereby has guaranteed the punching out quality of the termination of copper pipe 15.

Claims

1, program control double dynamical horizontal type tube expanding machine, but the expander roll die holder that comprises a move left and right on bearing, the expander roll die holder is provided with the expander roll of aiming at copper pipe, but the drift die holder that also comprises a move left and right on bearing, this drift die holder is provided with coaxial and made the drift axially wear by expander roll with expander roll, described drift is in the stroke of drift die holder, can insert copper pipe end, realization is to the expansion of copper pipe end, it is characterized in that: described drift die holder is provided with a big wire role parallel with expander roll, and described big wire role is driven by a numerical-control motor and moves axially; Other is provided with by another numerical-control motor and drives and the minor leading screw that rotates, be arranged in parallel with expander roll, and is connected with nut on the expander roll die holder, and described two numerical-control motors are controlled by setting working procedure by microcomputer.

2, program control double dynamical horizontal type tube expanding machine according to claim 1, it is characterized in that bearing is provided with two can be along the guide pillar of bearing move left and right, described guide pillar is set up in parallel the both sides up and down at expander roll respectively, the one end is connected with the drift die holder, the other end then is connected with crossbeam, and an end of described big wire role is connected on the crossbeam.

3, program control double dynamical horizontal type tube expanding machine according to claim 1 and 2 is characterized in that: numerical-control motor drives a big nut that is threaded with big wire role by reduction box.

4, program control double dynamical horizontal type tube expanding machine according to claim 2, it is characterized in that: the expander roll die holder is provided with two perforation that are enclosed within on two guide pillars, the expander roll die holder is supported on also can be along guide pillar move left and right on bearing on the guide pillar, the above-mentioned minor leading screw that is driven by numerical-control motor has two, be set up in parallel the both sides up and down at expander roll respectively, the nut that connects with minor leading screw on the expander roll die holder is corresponding to be provided with two.

5, program control double dynamical horizontal type tube expanding machine according to claim 4 is characterized in that: numerical-control motor drives two minor leading screws up and down by the power distribution case.