CN2785781Y - Electro-conducting welding head of precision resistance welding machine - Google Patents
Electro-conducting welding head of precision resistance welding machine Download PDFInfo
- Publication number
- CN2785781Y CN2785781Y CN 200520040548 CN200520040548U CN2785781Y CN 2785781 Y CN2785781 Y CN 2785781Y CN 200520040548 CN200520040548 CN 200520040548 CN 200520040548 U CN200520040548 U CN 200520040548U CN 2785781 Y CN2785781 Y CN 2785781Y
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- main shaft
- fixed
- cover plate
- conducting
- conductor
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Abstract
The utility model relates to an electro-conducting welding head of a precision resistance welding machine, which comprises a first box body, a main shaft, a drive wheel, an electrode wheel, a second box body, an input cover plate, a concave conducting body and a convex conducting body, wherein the main shaft is movably arranged on the first box body and is fixed by a bearing; the drive wheel is fixed at one end part of the main shaft; the electrode wheel is fixed at one end part of the main shaft; the input cover plate is fixed at the second box body; the concave conducting body is fixed at the other end part of the main shaft, and extends into the cavity of the second box body; the convex conducting body is fixed at the input cover plate and contacts with the matching surface corresponding to the concave conducting body, and the concave conducting body is matched with the convex conducting body in a spherical surface mode. Great current is input from the input cover plate and transmits to the concave conducting body via the convex conducting body, thereby, the great current is output from the electrode wheel. The utility model has the advantages that the electric conducting area is added by using the spherical surface concave and convex conducting body structure, the current transmission is stable, the welding head rotation design and the load bearing independent box body design can realize that the main shaft rotates under the high-pressure in high precision, and the uniformity and the stability of the whole welding quality are ensured.
Description
Technical field
The utility model relates to the electric-resistance seam-welding connection technology, provides especially that the output of a kind of electric current is stable, the plumb joint of good conductivity, long service life.
Background technology
It is a kind of in the resistance welded that electric-resistance seam-welding connects; be widely used in plate sheet welding fields such as iron and steel, automobile; as at the tinuous production annealing of iron and steel enterprise, coating unit etc.; it mainly acts on is the front and back coil of strip to be welded to connect guarantee that unit moves continuously; to have higher weldquality intensity and toughness preferably simultaneously; weld seam thickens little and shows forming; no welding slag and tangible weld defect etc.; promptly certain unit tension force and alternating bending effect under; weld seam can not rupture, and keeps the stable operation of unit.Therefore butt welded seam quality and stability requirement are more and more higher.And the soldering tip parts of seam welder have played decisive role to this.Soldering tip is a kind of the conductive component of current delivery band to the workpiece, and conductive structure commonly used at present is a bearing shell formula conductive component, and bearing shell formula conductive component watt bigger to the brake force of axle often produces current fluctuation, even sparking or ablation phenomen take place.In order to overcome watt shortcoming of shaft type conductive structure, the researcher has adopted lubricating system and height to lead measures such as high-abrasive material, and frictional resistance is reduced, but owing to the intrinsic shortcoming of design principle, can not solve the shortcoming of bearing shell formula conductive component effectively.When the welding material thinner thickness, the seam welder of bearing shell formula conductive component rosin joint often occurs or burns phenomenon, and the main cause that produces these phenomenons is exactly that electric current transmitted is not steady, and the weldering wheel speed of mainshaft is inhomogeneous.Directly translate into the rate height of rewelding
U.S. Pat 4916271 is designed plane formula conductive component and fricton-tight conductive component at above problem.The plane formula conductive component mainly contains input cover plate main shaft, casing and adjustment spring and forms.One end of axle is processed into the plane, contacts conduction, apply prestressing force by spring to contact-making surface from the other end of axle with the input cover plate.The advantage of this assembly is the friction that has reduced contact-making surface greatly, has three big shortcomings simultaneously: the one, and axle can jump on axis direction, makes the weldering wheel can not realize welding on same straight line; The 2nd, contact-making surface generation uneven wear, contact-making surface can be more and more littler; The 3rd, the area of contact-making surface is limited.The principle of fricton-tight conductive component is very simple, the direct and power lead binding of main shaft, and lead and then reversed when main shaft rotated, and adopted the identical way of rotating to discharge distorting stress.The shortcoming of this fricton-tight conductive component be lead when reversing along with the anti-torsion of the increase of the number of turns is big more, it is inhomogeneous to cause main shaft to rotate, hardening phenomenon can take place in any in addition plain conductor when reversing, increase the main shaft rotary resistance.
Therefore, no matter be that bearing shell formula, plane formula, fricton-tight formula conductive component all exist the factor that influences the main shaft operate as normal according to above analysis.
Summary of the invention
The purpose of this utility model is to design a kind of precision resistance welder conductive solder head, sphere electric conductor in relative rotation, strengthened the electric current conduction surface, final drive shaft by rotation is transported to big current stabilization on the electrode wheel, the electrode and the workpiece band steel of high accuracy rotation directly act on, and have obtained a reliable quality weld seam.
For achieving the above object, technical solution of the present utility model is, precision resistance welder conductive solder head, and it comprises, first casing, main shaft is movably set on first casing, and by bearing fixing; Driving wheel is fixed in main shaft one end; Electrode wheel is fixed in main shaft one end; Second casing, the input cover plate is fixed in second casing; Comprise that also recessed conductor is fixed in main shaft the other end, be stretched in the second casing cavity; Protruding conductor is fixed in the input cover plate, with the corresponding cooperation of recessed conductor, face contact.
Further, recessed conductor described in the utility model is that sphere cooperates with protruding conductor; Described recessed conductor inner surface has composite bed.
Conductive solder head of the present utility model also is provided with countershaft, is fixed in main shaft one end with one heart; By sheathed contact roller and locking nut with electrode wheel fixing with main shaft on.
In addition, conductive solder head of the present utility model also is provided with governor motion, and it comprises spring, regulating block; This spring one end is resisted against recessed conductor, and an other end is against regulating block, and this regulating block is arranged at the input cover plate slidably.
Big electric current is from the input of input cover plate, by with its fixing protruding conductor, reach recessed conductor, concave spherical surface surface be the better conductivity ag material, rotation conduction main shaft contacts with recessed conductor countershaft face, greatly electric current so export from electrode wheel.
Advantage of the present utility model is,
1. adopt the concavo-convex conductor construction of sphere, increased conductive area;
2. with butterfly spring pretension and oil lubrication mode, contact-making surface frictional resistance when having reduced concavo-convex electric conductor and relatively rotating has guaranteed that also the concave, convex sphere fully fits at any time; Make the current stabilization transmission, concavo-convex electric conductor has had long service life simultaneously
3. the independent case body design of soldering tip rotation and carrying, the main shaft of can realizing conducting electricity rotates under high pressure accurately, guarantees whole welding line quality uniformity and stability;
4. this weld head design for big electric current, big welding pressure weld and become possibility, can realize more high-grade sheet metal thickness and intensity are welded.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Referring to Fig. 1, technical solution of the present utility model is, precision resistance welder conductive solder head, and it comprises, main shaft 21 is movably set on first casing 15, and fixing by bearing 14, the sheathed insulated enclosure circle 12 in end separates current-carrying part and casing 15 insulation, has prevented current loss; Driving wheel 22 is fixed in main shaft 21 1 ends, links to each other with the external drive motor, realizes main axis rotation, and its rotary speed and sealing wire speeds match have guaranteed weldquality; Electrode wheel 16 is fixed in main shaft 21 1 ends; Countershaft 19 is fixed in main shaft 21 1 ends with one heart; By sheathed contact roller 17 and locking nut 20 with electrode wheel 16 fixing with main shaft 21 on; Input cover plate 1 is fixed in second casing 15 by bolt 2, establishes O-ring seals 7 sealings therebetween; Recessed conductor 8 is fixed in insulated enclosure circle 12 outsides, main shaft 21 the other end, is stretched in second casing, 15 cavitys, therebetween by lip-type packing 11 sealings; Protruding conductor 3 is fixed in input cover plate 1, with recessed conductor 8 corresponding cooperations, face contact; Described recessed conductor 8 cooperates for sphere with protruding conductor 3; Described recessed conductor inner surface has composite bed 81, and recessed conductor 8 fixing and main shaft 21 and therewith rotations have realized that recessed conductor 8, protruding conductor 3 relatively rotate.
Conductive solder head of the present utility model also is provided with governor motion 5, and it comprises spring 51, regulating block 52; These spring 51 1 ends are resisted against recessed conductor 8, and an other end is against regulating block 52, and this regulating block 52 is arranged on the input cover plate 1 slidably; The radial and axial gap of bearing 14 and locking nut 13 control main shafts 21 is with adjusting circle 10 and combination butterfly spring 51, regulating block 52; Apply prestressing force should for protruding, recessed conductor 3,8 spheres,, realize that protruding conductor in radially fine setting, regulated the size and the uniformity of concavo-convex conductor contact force by adjusting the pretightning force of butterfly spring 51.
Big electric current is from input cover plate 1 input of Cu alloy material, by with its fixing Cu alloy material, protruding conductor 3 reaches the recessed conductor 8 that matrix is a copper alloy, recessed conductor 8 concave spherical surfaces surface is the better conductivity ag material, rotation conduction main shaft 21 contacts fixing with 19 of recessed conductor countershafts, by contact roller 17 and locking nut 20, with electrode wheel 16 fixing with main shaft 21 on, therefore big electric current is exported from electrode wheel.
Weld head design of the present utility model for big electric current, big welding pressure weld and become possibility, can realize more high-grade sheet metal thickness and intensity are welded.
Claims (6)
1. precision resistance welder conductive solder head, it comprises,
First casing,
Main shaft is movably set on first casing, and by bearing fixing;
Driving wheel is fixed in main shaft one end;
Electrode wheel is fixed in main shaft one end;
Second casing,
The input cover plate is fixed in second casing; It is characterized in that, also comprise,
Recessed conductor is fixed in main shaft the other end, is stretched in the second casing cavity;
Protruding conductor is fixed in the input cover plate, with the corresponding cooperation of recessed conductor, face contact.
2. precision resistance welder conductive solder head as claimed in claim 1 is characterized in that, described recessed conductor is that sphere cooperates with protruding conductor.
3. precision resistance welder conductive solder head as claimed in claim 1 is characterized in that, described recessed conductor inner surface has composite bed.
4. precision resistance welder conductive solder head as claimed in claim 1 is characterized in that, also is provided with countershaft, is fixed in main shaft one end with one heart; By sheathed contact roller and locking nut with electrode wheel fixing with main shaft on.
5. precision resistance welder conductive solder head as claimed in claim 1 is characterized in that also be provided with governor motion, it comprises spring, regulating block; This spring one end is resisted against recessed conductor, and an other end is against regulating block, and this regulating block is arranged at the input cover plate slidably.
6. precision resistance welder conductive solder head as claimed in claim 1 is characterized in that described spring is a butterfly spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520040548 CN2785781Y (en) | 2005-03-30 | 2005-03-30 | Electro-conducting welding head of precision resistance welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520040548 CN2785781Y (en) | 2005-03-30 | 2005-03-30 | Electro-conducting welding head of precision resistance welding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2785781Y true CN2785781Y (en) | 2006-06-07 |
Family
ID=36774356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520040548 Expired - Lifetime CN2785781Y (en) | 2005-03-30 | 2005-03-30 | Electro-conducting welding head of precision resistance welding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2785781Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110560863A (en) * | 2019-08-22 | 2019-12-13 | 武汉凯奇冶金焊接设备制造有限责任公司 | Welding wheel assembly device for strip steel on-line narrow lap joint seam welding machine |
| CN114433991A (en) * | 2022-02-23 | 2022-05-06 | 本钢不锈钢冷轧丹东有限责任公司 | Welding head of welding machine for stainless steel cold rolling production line |
-
2005
- 2005-03-30 CN CN 200520040548 patent/CN2785781Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110560863A (en) * | 2019-08-22 | 2019-12-13 | 武汉凯奇冶金焊接设备制造有限责任公司 | Welding wheel assembly device for strip steel on-line narrow lap joint seam welding machine |
| CN114433991A (en) * | 2022-02-23 | 2022-05-06 | 本钢不锈钢冷轧丹东有限责任公司 | Welding head of welding machine for stainless steel cold rolling production line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150330 Granted publication date: 20060607 |