CN102873448A - Self-adaption floatation pressure device for spot welding machine - Google Patents

Self-adaption floatation pressure device for spot welding machine Download PDF

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Publication number
CN102873448A
CN102873448A CN2011101939460A CN201110193946A CN102873448A CN 102873448 A CN102873448 A CN 102873448A CN 2011101939460 A CN2011101939460 A CN 2011101939460A CN 201110193946 A CN201110193946 A CN 201110193946A CN 102873448 A CN102873448 A CN 102873448A
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self
electrode
pressue device
framework
cylinder
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CN2011101939460A
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CN102873448B (en
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顾能武
郑浩
王培�
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SHANGHAI MEDAR WELDING EQUIPMENT CO Ltd
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SHANGHAI MEDAR WELDING EQUIPMENT CO Ltd
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Abstract

The invention discloses a self-adaption floatation pressure device for a spot welding machine. The self-adaption floatation pressure device comprises a frame, a pressure mechanism, an upper electrode, a lower electrode and a floatation balance mechanism. The frame comprises a vertical stand, and an upper bracket and a lower bracket which are connected with upper and lower ends of the vertical stand, thereby forming a C-shaped structure, vertical guiderails are respectively arranged at the left side and the right side of the vertical stand, and sliders are oppositely sheathed on the upper parts and the lower parts of the two guiderails respectively in a sliding manner; the pressure mechanism is arranged on the upper bracket of the frame; the upper electrode is arranged at the lower end of the pressure mechanism so as to do up-down movement along with the pressure mechanism; the lower electrode and the upper electrode are coaxially arranged on the lower bracket of the frame; the floatation balance mechanism is positioned at the lower part of the self-adaption floatation pressure device and comprises a support spring and a lower cylinder, wherein the upper end of the support spring is connected with the lower bracket of the frame, and a piston rod of the lower cylinder is connected with the lower bracket of the frame, and the four sliders on the two guiderails, the lower end of the support spring and the bottom surface of the lower cylinder are respectively fixed on the spot welding machine.

Description

A kind of for the self-adapting float pressue device on the mash welder
Technical field
The present invention relates to a kind of spot welding connection device of large shape slab member, be specifically related to a kind of for the self-adapting float pressue device on the mash welder.
Background technology
Traditional fixed spot welder often all be to adopt bottom electrode to be fixed, drive the mode that top electrode presses down by pressue device and come clamping work pieces to weld again.This pressue device generally is applicable to make and can adopts overlap joint, joint not to require airtight, thickness less than the punching press of 3mm, rolling thin-plate element, and for the slab member of large shape, must fix first workpiece during spot welding.Because the anti-deformation intensity of slab workpiece is large, when workpiece exists distortion or electrode tip to be worn, cause weld defect with regard to being difficult to guarantee the bottom electrode workpiece pressing.
Summary of the invention
The objective of the invention is in order to overcome the defective of prior art, provide a kind of for the self-adapting float pressue device on the mash welder, solved the conventional point welding machine problem that bottom electrode can't the self adaptation workpiece pressing when the large shape slab member of welding, whole device is adjustable flexibly, has also greatly promoted production efficiency when guaranteeing welding quality.
To achieve these goals, the present invention adopts following technical scheme: a kind ofly comprise framework, pressing mechanism, top electrode, bottom electrode, floating balancing mechanism for the self-adapting float pressue device on the mash welder, wherein:
Described framework comprise a stand and be connected to this stand upper and lower two upper and lower carriage and consist of a C shape structure, the right and left of described stand is installed respectively a vertical guide rail, the top and the bottom of these two guide rails are sliding sleeve one slide block relatively respectively;
Described pressing mechanism is positioned at the bottom of described self-adapting float pressue device, and this pressing mechanism is installed on the bracket of described framework;
Described top electrode is installed in the lower end of described pressing mechanism, to move up and down with described pressing mechanism;
Described bottom electrode and described top electrode are co-axially mounted on the bottom bracket of described framework;
Described floating balancing mechanism is positioned at the bottom of described self-adapting float pressue device, this floating balancing mechanism comprises a support spring and a lower cylinder, the upper end of described support spring is connected with the bottom bracket of described framework, and the top of the piston rod of described lower cylinder is connected with the bottom bracket of described framework;
The bottom surface of four slide blocks on described two guide rails, the lower end of described support spring and described lower cylinder is separately fixed on the described mash welder;
Along with the stressed variation of described upper and lower electrode, the decrement of described support spring changes, thereby whole described self-adapting float pressue device is vertically moved freely on described slide block by two guide rails on the described framework.
The above-mentioned self-adapting float pressue device that is used on the mash welder, wherein, the top of the piston rod of described lower cylinder is connected with a screw rod by an active joint, and the upper end of this screw rod links to each other with described bottom bracket.
The above-mentioned self-adapting float pressue device that is used on the mash welder, wherein, described support spring comprise a cylindrical spring, a base plate, a lower end be fixed on this base plate and be plugged on screw rod in the cylindrical spring and a rotation set on screw rod and be positioned at the adjusting nut of cylindrical spring lower end, the upper end of described cylindrical spring is connected with described bottom bracket.
The above-mentioned self-adapting float pressue device that is used on the mash welder, wherein, described pressing mechanism comprises that a weld cylinder and is connected to the adjusting handle of weld cylinder upper end, described top electrode is connected to the lower end of the piston rod of this weld cylinder, moves up and down with the stretching motion with the piston rod of weld cylinder.
The above-mentioned self-adapting float pressue device that is used on the mash welder, wherein, described upper/lower electrode is made of electrode tip, electrode tip holder and conducting block respectively, and described electrode tip holder is communicated with water quench, and described conducting block is provided with the screwed hole for the connecting welding power supply.
Technical scheme for the self-adapting float pressue device on the mash welder of the present invention, cooperate the high power welding power supply, can realize well the welding of large-scale slab member, solved the conventional point welding machine problem that bottom electrode can't the self adaptation workpiece pressing when the large shape slab member of welding, whole device is adjustable flexibly, when guaranteeing welding quality, also greatly promote production efficiency, compared with prior art had following advantage:
1. can guarantee upper/lower electrode self adaptation clamping work pieces in the whole welding process according to the stressed variation of upper/lower electrode in the s own situation of workpiece and the welding process, to guarantee quality of welding spot;
2. when not welding, lower cylinder spurs whole device and descends, and has also avoided lower electrode tip collision workpiece and cause damage when making things convenient for workpiece to load and moving; When welding, lower cylinder can eject rapidly, guarantees welding efficiency with the fastest speed workpiece pressing;
3. the stroke of upper/lower electrode is adjustable flexibly, can adjust according to workpiece shape, electrode tip abrasion condition and produced on-site needs;
4. only by the screw connection at several places, just this device can be assembled to easily the enterprising enforcement of mash welder and use.
Description of drawings
Fig. 1 is the structure front view for the self-adapting float pressue device on the mash welder of the present invention;
Fig. 2 is the structure side view for the self-adapting float pressue device on the mash welder of the present invention.
The specific embodiment
Explain the present invention below in conjunction with accompanying drawing and specific embodiment:
As depicted in figs. 1 and 2, of the present invention for the self-adapting float pressue device on the mash welder, comprise framework 1, pressing mechanism 2, top electrode 3, bottom electrode 4, floating balancing mechanism 5, wherein,
Framework 1 is as the trunk of self-adapting float pressue device, the pressure of sustaining electrode and moment of flexure; Framework 1 comprises a stand 10 and is connected to the upper and lower carriage 11 at upper and lower two of this stand 10,12 and consist of a C shape structure, the right and left of stand 10 is installed respectively a vertical guide rail 13, and the top and the bottom difference of these two guide rails 13 is sliding sleeve one slide block 14 relatively; All offer screwed hole on these four slide blocks 14, can be installed on the mash welder;
Pressing mechanism 2 is positioned at the top of self-adapting float pressue device, and this pressing mechanism 1 comprises that a weld cylinder 21 and is connected to the adjusting handle 22 of the upper end of weld cylinder 21, and this weld cylinder 22 is installed on the bracket 11 of framework 1;
Top electrode 3 is made of electrode tip 31, electrode tip holder 32 and conducting block 33, and electrode tip holder 32 is communicated with water quench, and conducting block 33 is provided with the screwed hole for the connecting welding power supply; Top electrode 3 is installed in the lower end of the piston rod 210 of weld cylinder 21, moves up and down with the stretching motion with the piston rod 210 of weld cylinder 21;
Bottom electrode 4 is made of electrode tip 41, electrode tip holder 42 and conducting block 43, and electrode tip holder 42 is communicated with water quench, and conducting block 43 is provided with the screwed hole for the connecting welding power supply; Bottom electrode 4 is co-axially mounted on the bottom bracket 12 of framework 1 with top electrode 3;
Floating balancing mechanism 5 is positioned at the bottom of self-adapting float pressue device, is used for float support self-adapting float pressue device, and regulates the position of control self-adapting float pressue device; This floating balancing mechanism 5 comprises a support spring 51 and a lower cylinder 52;
Support spring 51 comprise a cylindrical spring 511, a base plate 512, a lower end be fixed on this base plate 512 and be plugged on screw rod 513 in the cylindrical spring 511 and a rotation set on screw rod 513 and be positioned at the adjusting nut 514 of cylindrical spring 511 lower ends; The upper end of cylindrical spring 511 is connected with the bottom bracket 12 of framework 1; Offer screwed hole on the base plate 512, can be fixed on the mash welder;
The top of the piston rod of lower cylinder 52 is connected with a screw rod 522 by an active joint 521, and the upper end of this screw rod 522 links to each other with the bottom bracket 12 of framework 1, offers screwed hole on the bottom face of lower cylinder 52, can be fixed on the mash welder.
Along with upper and lower electrode 3,4 stressed variation, the decrement of support spring 51 changes, thereby whole self-adapting float pressue device is vertically moved freely on slide block 14 by two guide rails 13 on the framework 1.
Of the present inventionly cooperate the high power welding power supply for the self-adapting float pressue device on the mash welder, be applicable to the large-scale slab member of welding processing, its operation principle and process are as follows:
1. under original state, weld cylinder 21 complete pumpbacks, it drives top electrode 3 and rises to peak, simultaneously also pumpback and spur framework 1 and descend of lower cylinder 52, support spring 51 is compressed under the effect of the deadweight of self-adapting float pressue device and lower cylinder 52 pulling force, whole self-adapting float pressue device descends, and bottom electrode 4 breaks away from workpiece;
2. after workpiece puts in place, enter the precompressed stage, weld cylinder 21 drove first top electrode 3 and dropped to the auxiliary stroke position this moment, then lower cylinder 52 ejects, upwards promote framework 1, therefore support spring 51 also recovers, whole self-adapting float pressue device moves up, make bottom electrode 4 withstand workpiece, simultaneously, weld cylinder 21 drives top electrode 3 and descends, after touching workpiece, top electrode 3 begins pressurization, under the effect of pressure, support spring 51 further recovers, and has guaranteed better the compression of 4 pairs of workpiece of bottom electrode;
3. after precompressed is finished, enter the welding stage, in welding process, support spring 51 stretches along with the variation of active force between top electrode 3 and the workpiece, and whole self-adapting float pressue device is fluctuated from suitable workpiece pressing;
4. after welding is finished, lower cylinder 52 is 1 pumpback of pulling framework downwards, make bottom electrode 4 break away from workpiece, weld cylinder 21 drives top electrode 3 and gets back to the auxiliary stroke position simultaneously, to next weld locations, after workpiece puts in place, repeat top 2 and 3 step with workpiece movable this moment again, until all solder joints are soldered on the whole workpiece, welding machine is got back to again the state of the 1st step.
Can adjust upper and lower electrode 3,4 stroke according to the abrasion condition of the shape of workpiece, electrode tip and produced on-site needs, namely by adjusting the welding stroke of the adjusting handle 22 capable of regulating top electrodes 3 on the compression system 2, the adjusting handle 22 that turns clockwise can reduce the welding stroke of top electrode 3, is rotated counterclockwise the welding stroke that adjusting handle 22 can increase top electrode 3.By regulating the float adjusting nut 514 of balance sysmte 5 and the initial position of screw rod 522 capable of regulating bottom electrodes 4, thereby adjust the welding stroke of bottom electrode 4, the position is toward raising, and the welding stroke of bottom electrode 4 reduces, the position is toward downward modulation, and the welding stroke of bottom electrode 4 increases.
In the welding process of electric welding machine, of the present invention can be according to the stressed variation of upper/lower electrode and the self adaptation clamping work pieces cooperates the high power welding power supply for the self-adapting float pressue device on the mash welder, can solve well the spot welding problem of large-scale slab member.Whole device is adjustable flexibly, can be assembled on the welding machine easily, and the welding stroke of upper/lower electrode can both be adjusted as required.
Those of ordinary skill in the art will be appreciated that, above embodiment illustrates the present invention, and be not to be used as limitation of the invention, as long as in connotation scope of the present invention, all will drop in claims scope of the present invention variation, the distortion of the above embodiment.

Claims (5)

1. a self-adapting float pressue device that is used on the mash welder comprises framework, pressing mechanism, top electrode, bottom electrode, floating balancing mechanism, it is characterized in that,
Described framework comprise a stand and be connected to this stand upper and lower two upper and lower carriage and consist of a C shape structure, the right and left of described stand is installed respectively a vertical guide rail, the top and the bottom of these two guide rails are sliding sleeve one slide block relatively respectively;
Described pressing mechanism is positioned at the bottom of described self-adapting float pressue device, and this pressing mechanism is installed on the bracket of described framework;
Described top electrode is installed in the lower end of described pressing mechanism, to move up and down with described pressing mechanism;
Described bottom electrode and described top electrode are co-axially mounted on the bottom bracket of described framework;
Described floating balancing mechanism is positioned at the bottom of described self-adapting float pressue device, this floating balancing mechanism comprises a support spring and a lower cylinder, the upper end of described support spring is connected with the bottom bracket of described framework, and the top of the piston rod of described lower cylinder is connected with the bottom bracket of described framework;
The bottom surface of four slide blocks on described two guide rails, the lower end of described support spring and described lower cylinder is separately fixed on the described mash welder;
Along with the stressed variation of described upper and lower electrode, the decrement of described support spring changes, thereby whole described self-adapting float pressue device is vertically moved freely on described slide block by two guide rails on the described framework.
2. according to claim 1ly it is characterized in that for the self-adapting float pressue device on the mash welder that the top of the piston rod of described lower cylinder is connected with a screw rod by an active joint, the upper end of this screw rod links to each other with described bottom bracket.
3. according to claim 1 for the self-adapting float pressue device on the mash welder, it is characterized in that, described support spring comprise a cylindrical spring, a base plate, a lower end be fixed on this base plate and be plugged on screw rod in the cylindrical spring and a rotation set on screw rod and be positioned at the adjusting nut of cylindrical spring lower end, the upper end of described cylindrical spring is connected with described bottom bracket.
4. according to claim 1 for the self-adapting float pressue device on the mash welder, it is characterized in that, described pressing mechanism comprises that a weld cylinder and is connected to the adjusting handle of weld cylinder upper end, described top electrode is connected to the lower end of the piston rod of this weld cylinder, moves up and down with the stretching motion with the piston rod of weld cylinder.
5. according to claim 1 for the self-adapting float pressue device on the mash welder, it is characterized in that, described upper/lower electrode is made of electrode tip, electrode tip holder and conducting block respectively, and described electrode tip holder is communicated with water quench, and described conducting block is provided with the screwed hole for the connecting welding power supply.
CN201110193946.0A 2011-07-12 2011-07-12 Self-adaption floatation pressure device for spot welding machine Active CN102873448B (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103358007A (en) * 2013-06-27 2013-10-23 北京商驰科技发展有限公司 Full automatic tab welding device
CN104741763A (en) * 2013-12-31 2015-07-01 深圳市鹏煜威科技有限公司 Resistance welding machine with floating device and resistance welding method
CN104889612A (en) * 2015-05-13 2015-09-09 王丽 Pressing tool of pneumatic spot welding machine
CN105729029A (en) * 2016-05-10 2016-07-06 中冶建工集团有限公司 Multi-leg rectangular stirrup welding device
CN106735823A (en) * 2017-02-10 2017-05-31 成都顺泰焊接设备有限责任公司 The mixed dynamic adaptive location welder of gas-liquid
CN106735813A (en) * 2016-12-26 2017-05-31 宁波宏协承汽车部件有限公司 A kind of base of spot welding machine mechanism
CN108568585A (en) * 2017-03-10 2018-09-25 无锡骏业自动装备有限公司 A kind of vehicle energy absorption box double end automatic welding machine
CN110340510A (en) * 2019-07-26 2019-10-18 北京奥峰铭金属制品有限公司 Resistance spot weld
CN111790972A (en) * 2020-07-27 2020-10-20 格力电器(郑州)有限公司 Workpiece supporting device for spot welding machine and welding system

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CN2323901Y (en) * 1998-01-23 1999-06-16 周春伯 Plane automatic point welding machine
CN2829963Y (en) * 2005-11-18 2006-10-25 王兆利 Precision resistance welder with spring
CN201856032U (en) * 2010-11-01 2011-06-08 鹏煜威科技(深圳)有限公司 Linked electrode resistance welding device
CN201856035U (en) * 2010-07-14 2011-06-08 天津市科华焊接设备有限公司 Transformer for mesh welding machine and electrode servo mechanism

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CN2323901Y (en) * 1998-01-23 1999-06-16 周春伯 Plane automatic point welding machine
CN2829963Y (en) * 2005-11-18 2006-10-25 王兆利 Precision resistance welder with spring
CN201856035U (en) * 2010-07-14 2011-06-08 天津市科华焊接设备有限公司 Transformer for mesh welding machine and electrode servo mechanism
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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103358007A (en) * 2013-06-27 2013-10-23 北京商驰科技发展有限公司 Full automatic tab welding device
CN104741763A (en) * 2013-12-31 2015-07-01 深圳市鹏煜威科技有限公司 Resistance welding machine with floating device and resistance welding method
CN104741763B (en) * 2013-12-31 2017-02-15 深圳市鹏煜威科技有限公司 Resistance welding machine with floating device and resistance welding method
CN104889612A (en) * 2015-05-13 2015-09-09 王丽 Pressing tool of pneumatic spot welding machine
CN105729029A (en) * 2016-05-10 2016-07-06 中冶建工集团有限公司 Multi-leg rectangular stirrup welding device
CN106735813A (en) * 2016-12-26 2017-05-31 宁波宏协承汽车部件有限公司 A kind of base of spot welding machine mechanism
CN106735813B (en) * 2016-12-26 2020-10-02 宁波宏协承汽车部件有限公司 Spot welder base mechanism
CN106735823A (en) * 2017-02-10 2017-05-31 成都顺泰焊接设备有限责任公司 The mixed dynamic adaptive location welder of gas-liquid
CN108568585A (en) * 2017-03-10 2018-09-25 无锡骏业自动装备有限公司 A kind of vehicle energy absorption box double end automatic welding machine
CN110340510A (en) * 2019-07-26 2019-10-18 北京奥峰铭金属制品有限公司 Resistance spot weld
CN111790972A (en) * 2020-07-27 2020-10-20 格力电器(郑州)有限公司 Workpiece supporting device for spot welding machine and welding system
CN111790972B (en) * 2020-07-27 2021-11-23 格力电器(郑州)有限公司 Workpiece supporting device for spot welding machine and welding system

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