CN206936576U - A kind of stud welding device - Google Patents
A kind of stud welding device Download PDFInfo
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- CN206936576U CN206936576U CN201720548486.1U CN201720548486U CN206936576U CN 206936576 U CN206936576 U CN 206936576U CN 201720548486 U CN201720548486 U CN 201720548486U CN 206936576 U CN206936576 U CN 206936576U
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- stud
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- welding
- guide sleeve
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Abstract
The utility model discloses a kind of stud welding device, to in the flat surface welding screw of workpiece, including first electrode, second electrode and guide sleeve, second electrode is socketed on guide sleeve, accommodating groove is provided with the middle part of guide sleeve, to accommodate stud, first electrode makes stud end face be abutted with workpiece surface with second electrode move toward one another.The utility model improves welding quality by the sealing-off rate of resistance welder stud in workpiece surface welding screw, reduction welding process；Guide sleeve is to install stud, so that resistance welder can be used for welding screw.
Description
Technical field
It the utility model is related to stud welding field, more particularly to a kind of stud welding device.
Background technology
At present, wide variety of stud welding mode is arc welding in industry, by by the conical surface end of stud and plate
Surface is contacted, energization striking, and the connection of to-be-welded pieces is completed in contacting surface fusing waiting.
But there is following defect in the mode of existing striking welding screw：
Striking welding uses stud welding gun, is manual operations, low production efficiency, and easily generation striking failure, gas mostly
Hole, overlap are uneven；Easily abrasion or bonding splash, usual ignition tip change frequency to stud inner clip ignition tip because of deformation in arc-welding
Numerous, processing and manufacturing cost is high；Ignition tip contacts unstable with workpiece in welding, causes failure welding, and failure welding rate reaches thousand
/ tri-, it is difficult to ensure weld strength, virtually increase quality cost.
Utility model content
For overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of welder, to reduce weldering
Connecing defect reduces production cost.
The purpose of this utility model is realized using following technical scheme：
A kind of stud welding device, in the flat surface welding screw of workpiece, the stud welding device is resistance
Welding machine, including first electrode, second electrode and guide sleeve, the second electrode are socketed on the guide sleeve, in the guide sleeve
Portion is provided with accommodating groove, and to accommodate the stud, the first electrode makes the stud end with the second electrode move toward one another
Face abuts with the workpiece surface.
Further, the first electrode overlaps with the second electrode axis.
Further, the stud welding device also includes transformer, and the transformer both ends are electric with described first respectively
Pole, second electrode electrical connection.
Further, the second electrode axis overlaps with the stud axis.
Compared with prior art, the beneficial effects of the utility model are：By resistance welder in workpiece surface welding screw,
The sealing-off rate of stud in welding process is reduced, improves welding quality；Guide sleeve is set to install stud, so that resistance welder
Welding screw can be used for.
Brief description of the drawings
Fig. 1 is a structural representation of the utility model stud welding device；
Fig. 2 is an application schematic diagram of stud welding device shown in Fig. 1；
Fig. 3 is to install stud schematic diagram in the application of stud welding device shown in Fig. 1；
Fig. 4 is to position workpiece fabrication view in the application of stud welding device shown in Fig. 1；
Fig. 5 is pressure process view in the application of stud welding device shown in Fig. 1；
Fig. 6 is energization welding process view in the application of stud welding device shown in Fig. 1；
Fig. 7 is fall back process view in the application of stud welding device shown in Fig. 1；
Fig. 8 is that release takes thing view in the application of stud welding device shown in Fig. 1.
In figure：10th, first electrode；20th, second electrode；30th, guide sleeve；40th, stud；50th, transformer；60th, workpiece.
Embodiment
Below, with reference to accompanying drawing and embodiment, the utility model is described further, it is necessary to explanation is,
On the premise of not colliding, it can be formed in any combination between various embodiments described below or between each technical characteristic new
Embodiment.
As shown in Figure 1-2, a kind of stud welding device, including first electrode 10, second electrode 20, guide sleeve 30, stud
40 with transformer 50.
Second electrode 20 is socketed on guide sleeve 30, and the axis of guide sleeve 30 and the axis weight of second electrode 20
Close.The both ends of transformer 50 are electrically connected by fastener with first electrode 10, second electrode 20 respectively.
In use, stud 40 is plugged in guide sleeve 30, and the axis weight of the center line of stud 40 and guide sleeve 30
Close.Guide sleeve 30 is made of insulating materials such as mica, porcelain, while protects the screw thread on stud 40, prevents screw thread from welding
Adhesion splash in journey.The stud used in the present embodiment is short cycle arc welding stud M6 × 16, the stud 40 and workpiece
In being taper, the conical top angle is 174 ° for one end of contact, and it is 4.5mm that stud 40, which welds fusion area radius,.Workpiece 60 is fixed
Position is positioned between first electrode 10 and second electrode 20.First electrode 10 clamps stud 40 and workpiece 60 with second electrode 20,
Stud 40 is set closely to be abutted with workpiece 60, transformer 50 produces welding current after being powered and passes to the electricity of first electrode 10, second
Pole 20 is fixedly connected stud 40 and workpiece 60.
A kind of stud welding method, stud 40 is welded on the surface of workpiece 60 by using resistance welder, it is excellent to obtain
Welding quality.Comprise the following steps that：
Step 1, as shown in figure 3, installation stud 40：Welding screw 40 is plugged in guide sleeve 30, wherein, guide sleeve 30
Insulated with second electrode 20, to protect screw thread, prevent screw thread to be damaged；
Step 2, as shown in figure 4, workpiece 60 positions：Workpiece 60 is loaded into frock clamp, and is positioned into by alignment system
Row positioning is fixed so that and the end face of workpiece 60 and stud 40 is inconsistent, wherein, the welding region of workpiece 60 is plane；
Step 3, as illustrated in figs. 5-7, welding process：First electrode 10 is moved to workpiece 60, matches somebody with somebody co-clip with second electrode 20
Clamping of workpieces 60, the cycle of precompressed 28~42, it is ensured that workpiece 60 fully contacts with the tapered end face of stud 40；When pressure reaches 2.24~
During 3.36KN, be powered 0.8~1.2 cycle of preheating, when welding current reaches 8~12KA, is kept for the conduction time of 8~12 cycles
Welded, be then turned off the pressure time that electric current continues the cycle of holding 8~12, cool down welding position；Released after the completion of cooling
It is 0 to put welding pressure to pressure, and first electrode 10 is retracted, and completes welding process；
Step 4, as shown in figure 8, release：After completing welding, workpiece 60 is welded and fixed together with stud 40, takes out weldering
The weldment connected.
With reference to Fig. 3-8, so that automobile rear floor two level sub-unit welds welding screw M6 × 16 as an example, further illustrate
Stud welding method and the beneficial effect of acquirement in the utility model.Welding screw M6 × 16 planforms are special, and one end is cone
Shape end face, welding fusion area radius are 4.5mm.
Specific welding step is as follows：
Step 1, stud is installed：Welding screw M6 × 16 are plugged in the guide sleeve 30 of second electrode 20；
Step 2, workpiece positioning：Automobile rear floor two level sub-unit is loaded into frock clamp, and positioned by alignment system
It is fixed on the positioning so that workpiece 60 and the taper surface of welding screw M6 × 16 are inconsistent；
Step 3, welding process：First electrode 10 is moved to automobile rear floor two level sub-unit, is coordinated with second electrode 20
Clamp automobile rear floor two level sub-unit, the cycle of precompressed 30, it is ensured that automobile rear floor two level sub-unit and welding screw M6 × 16
Tapered end face fully contact；When pressure reaches 2.42KN, be powered 1.0 cycles of preheating, when welding current reaches 10KA, protects
The conduction time for holding 10 cycles is welded, and is then turned off electric current and is continued to keep the pressure time of 10 cycles, makes welding position cold
But；It is 0 that welding pressure to pressure is discharged after the completion of cooling, and first electrode 10 is retracted, and completes welding process；
Step 4, release are retracted：After completing welding, automobile rear floor two level sub-unit and welding screw M6 × 16 welding are solid
It is scheduled on the weldment for, taking out be welded together.
The welding step of traditional-handwork stud welding gun is：Stud M6 × 16 are transported to welding gun inner chamber by conveyer, by pushing away
Stud M6 × 16 are pushed to ignition tip by bar, are pressed to workpiece after hand torch insertion fixture guide sleeve, are pressed power switch, successively
Lift stud, striking, push, cool down, finally lift welding gun, complete welding, whole welding process all can be by operating personnel
Level of skill influences.
First, compared to the process of traditional-handwork stud welding gun welding screw M6 × 16, welding process of the present utility model
In, guide sleeve 30 realizes the assembling positioning of stud M6 × 16 in welding process, so as to avoid in manual stud welding gun welding process
Caused by destabilizing factor the problems such as sealing-off, screw thread adhesion splash.Reduce the influence of operating personnel's welding quality.
Secondly, during traditional-handwork stud welding gun welding screw M6 × 16, ignition tip curb pins easily wears, and works as inner clip
During abrasion, the bad phenomenons such as conveying is not in place, conduction is uneven, thread is burnt out occur in stud M6 × 16；When outer clip is damaged,
The bad phenomenons such as stud is flown out, thread is burnt out, weld strength deficiency occur；Now need to change ignition tip, and a set of craft
About 550 yuan of chuck cost inside and outside the ignition tip of stud welding.Consumable accessory only has electrode tip and led in the utility model welding process
To set 30, about 100 yuan are often covered, consumable accessory often covers expense and probably there was only 1/5th of manual stud welding gun, reduces and welded
The production cost of journey.In addition, ignition tip solderable stud 20,000, the electrode tip used in the utility model in average life span
Solderable stud more than 100,000, reduce further stud welding cost in service life.
Further, in the utility model operating process, under the pressing effect of first electrode 10 and second electrode 20, stud M6
× 16 taper surfaces and the intimate surface contact of workpiece 60.Apply active force with ignition tip one direction in manual stud welding gun welding process
Compare, the press process degree of balance is good in the utility model, and the positioning of stud M6 × 16 is more accurate, be less prone to stud fly out, screw thread
Phenomena such as burning out.
The equipment investment of a set of manual stud welding machine probably 350,000 yuan or so of needs, and a set of stationary welding machine (i.e. electric resistance welding
Welding machine) equipment only needs 3.5 ten thousand yuan or so of cost input cost only needs manual stud welding machine with regard to that can meet production requirement
1/10th.
In the welding process of traditional-handwork stud welding machine, due to the particularity of the own dimensions of stud M6 × 16, average 20
Just occur that an arc stud welding fitting needs are reprocessed in stud, and electric resistance welding stud improves welding in the utility model
Quality, stud welding reprocess quantity and drop to 0 by original average 1/20, and welding precision also 100% conforms to after testing
To ask, doing Knock test by intensity requirement 100% after welding carries out judgement discovery, stud welding intensity first-time qualification rate 100%, from
And the expense of reprocessing is saved.
Therefore compared to manual stud welding gun in industry 3/1000 or so fault rate permitting deformation, this practicality
It is new to substitute manual welding machine welding screw 40 by using resistance welder so that electrode failure rate is 0 during use, and stud returns
It is 0 to repair rate, slave unit maintenance cost, reprocesses many aspects such as important official, welding processing man-hour, instrument reduction production cost, improves
Productivity effect.
Above-mentioned embodiment is only preferred embodiment of the present utility model, it is impossible to is protected with this to limit the utility model
Scope, the change of any unsubstantiality that those skilled in the art is done on the basis of the utility model and replacing belongs to
In the utility model scope claimed.
Claims (4)
- A kind of 1. stud welding device, in the flat surface welding screw of workpiece, it is characterised in that：The arc stud welding tipping Resistance welder, including first electrode, second electrode and guide sleeve are set to, the second electrode is socketed on the guide sleeve, described Accommodating groove is provided with the middle part of guide sleeve, to accommodate the stud, the first electrode makes institute with the second electrode move toward one another Stud end face is stated to abut with the workpiece surface.
- 2. stud welding device as claimed in claim 1, it is characterised in that：The first electrode and the second electrode axis Overlap.
- 3. stud welding device as claimed in claim 1, it is characterised in that：The stud welding device also includes transformer, institute Transformer both ends are stated to electrically connect with the first electrode, the second electrode respectively.
- 4. stud welding device as claimed in claim 3, it is characterised in that：The second electrode axis and the stud axis Line overlaps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720548486.1U CN206936576U (en) | 2017-05-17 | 2017-05-17 | A kind of stud welding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720548486.1U CN206936576U (en) | 2017-05-17 | 2017-05-17 | A kind of stud welding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206936576U true CN206936576U (en) | 2018-01-30 |
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ID=61360798
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720548486.1U Active CN206936576U (en) | 2017-05-17 | 2017-05-17 | A kind of stud welding device |
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| CN (1) | CN206936576U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107252961A (en) * | 2017-05-17 | 2017-10-17 | 广州广汽荻原模具冲压有限公司 | A kind of stud welding method and welder |
-
2017
- 2017-05-17 CN CN201720548486.1U patent/CN206936576U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107252961A (en) * | 2017-05-17 | 2017-10-17 | 广州广汽荻原模具冲压有限公司 | A kind of stud welding method and welder |
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