CN105880819A - Microscopic-welding point welding machine for hot-pressing electric resistance welding - Google Patents
Microscopic-welding point welding machine for hot-pressing electric resistance welding Download PDFInfo
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- CN105880819A CN105880819A CN201610497781.9A CN201610497781A CN105880819A CN 105880819 A CN105880819 A CN 105880819A CN 201610497781 A CN201610497781 A CN 201610497781A CN 105880819 A CN105880819 A CN 105880819A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/10—Spot welding; Stitch welding
- B23K11/11—Spot welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/24—Electric supply or control circuits therefor
- B23K11/241—Electric supplies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/24—Electric supply or control circuits therefor
- B23K11/25—Monitoring devices
- B23K11/252—Monitoring devices using digital means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Resistance Welding (AREA)
- Manufacturing Of Electrical Connectors (AREA)
Abstract
The invention discloses a microscopic-welding point welding machine for hot-pressing electric resistance welding. The microscopic-welding point welding machine comprises a point welding machine host, a point welding machine head, two groups of amplifying circuits and switching devices thereof and an automatic welding quality monitoring device, wherein the point welding machine host is provided with a welding power supply comprising a central processing circuit and a pulse output transformer; the point welding machine head is provided with a welding head clamp, the welding head clamp can be provided with a parallel electrode welding head, and the point welding machine head is electrically connected with the point welding machine host through an output cable of the pulse output transformer; the switching circuits and the switching devices thereof are electrically connected with the point welding machine host, two groups of the switching circuits are independent, and one group of the switching circuits can be switched to work when another group of the switching circuits are switched to be standby; and the automatic welding quality monitoring device comprises a real-time pulse output parameter detection circuit and a welding quality monitoring circuit. Compared with the prior art, the microscopic-welding point welding machine can meet different welding requirements of the parallel electrode welding head when different varnished wires and workpieces are welded.
Description
Technical field
The invention belongs to electric resistance welding field, it is more particularly related to one can apply parallel pole to weld
The Pyroelectric Media welding resistance micro welding contact welding machine of head welding enamel-covered wire.
Background technology
Existing resistance spot weld welding machine is all only one group amplifying circuit, in actual applications, generally requires root
Select different amplifying circuits according to the different application of resistance spot weld welding machine, different outputs, therefore just need
The multiple resistance spot weld welding machine of different model different capacity to be purchased.
Existing resistance spot weld welding machine includes resistance spot weld welding machine, the resistance of Constant current output that constant voltage exports
Welding spot welding machine, and the resistance spot weld welding machine of constant power output.The electric resistance welding spot welding of above-mentioned three kinds of pulses output
Machine is presetting using voltage, electric current, power and time as pulse output electrical quantity respectively, according to Joule's law,
Pulse output electrical quantity also includes the output energy of pulse and pulse output resistance.Owing to conventional, electric-resistance is welded by welder
Part often differs, and detection pulse output resistance, the output energy of pulse do not have practical significance in real time, thus existing
The resistance spot weld welding machine having technology is typically not related to the output energy of pulse, the real-time detection of pulse output resistance.
In the manufacture process of electronic devices and components, need to weld substantial amounts of enamel-covered wire workpiece with parallel electrode welding head, existing
There is the resistance spot weld welding machine that technology does not also have parallel electrode welding head welding quality automatically to monitor.In prior art also
It is not provided with the resistance spot weld welding machine of two groups of amplifying circuits and switchable apparatus thereof.
In view of this, a kind of Novel hot piezoelectricity welding resistance micro welding contact welding machine of necessary offer is flat to meet
Row welding head of electrode welds a large amount of enamel-covered wire workpiece and various line footpaths enamel-covered wire to the source of welding current in power and output essence
Different requirements on degree.
Summary of the invention
It is an object of the invention to: a kind of Novel hot piezoelectricity welding resistance micro welding contact welding machine is provided, flat to meet
Row welding head of electrode welds a large amount of enamel-covered wire workpiece and various line footpaths enamel-covered wire to the source of welding current in power and output essence
Different requirements on degree.
In order to realize foregoing invention purpose, the present invention proposes a kind of Pyroelectric Media welding resistance micro welding contact welding machine,
Comprising:
Mash welder main frame, it is provided with the source of welding current comprising central processing circuit and pulse output transformer；
Spot welding head, it is provided with the welding head holder that can install parallel electrode welding head, and spot welding head is exported by pulse
The output cable of transformator is electrically connected with mash welder main frame；And
The two groups of amplifying circuits being electrically connected with mash welder main frame and switching device thereof, two groups of amplifying circuits are each
Independence, realizes one group of amplifying circuit work by switching device and another group amplifying circuit is standby and switching.
As a kind of improvement of Pyroelectric Media welding resistance micro welding contact welding machine of the present invention, in described two groups of amplifying circuits
One group be the amplifying circuit being made up of audion, another group is the amplifying circuit that is made up of field effect transistor.
As a kind of improvement of Pyroelectric Media welding resistance micro welding contact welding machine of the present invention, described two groups of amplifying circuits and
Its switching device includes two electrical sockets being connected respectively with one of which amplifying circuit, from central processing circuit
And the plug that pulse output transformer is drawn, plug is only connected with one of them electrical socket, it is achieved
The work of one group of amplifying circuit and another group amplifying circuit is standby.
As a kind of improvement of Pyroelectric Media welding resistance micro welding contact welding machine of the present invention, described electrical socket and plug
Including the air plug that can turn on three pins more than 20A electric current.
As a kind of improvement of Pyroelectric Media welding resistance micro welding contact welding machine of the present invention, described electrical socket is arranged on a little
On the cabinet rear board of welding machine main frame.
As a kind of improvement of Pyroelectric Media welding resistance micro welding contact welding machine of the present invention, described mash welder main frame also wraps
Include the welding quality automated watch-keeping facility being electrically connected with mash welder main frame.
As a kind of improvement of Pyroelectric Media welding resistance micro welding contact welding machine of the present invention, described welding quality is supervised automatically
Survey device and comprise pulse output electrical quantity real-time detection circuit and welding quality observation circuit；Pulse output electricity ginseng
Number real-time detection circuit realizes parallel electrode welding head pulse output energy by current sensor and central processing circuit
The real-time detection of amount；Welding quality observation circuit is by real-time for parallel electrode welding head output energy of pulse detected value
Certain percentage is provided parallel to the monitor value of welding head of electrode welding quality, defeated when parallel electrode welding head operation
The energy gone out i.e. sends alarm signal less than monitor value, it is achieved the automatic prison to parallel electrode welding head welding quality
Survey.
As a kind of improvement of Pyroelectric Media welding resistance micro welding contact welding machine of the present invention, described pulse output electrical quantity
Testing circuit is to pulse output circuit, the output energy of pulse, pulse output resistance, pulse output voltage, arteries and veins
Rush output time to monitor in real time, and the welding times of parallel electrode welding head is detected in real time.
As a kind of improvement of Pyroelectric Media welding resistance micro welding contact welding machine of the present invention, the face of described mash welder main frame
Plate is provided with LCDs, numeral toggle switch and startup/roof-cut resistence, and LCDs shows inspection in real time
Survey pulse output electrical quantity, numeral toggle switch by real-time for output energy of pulse detected value with certain percentage
Being set to welding quality monitor value, startup/roof-cut resistence is used for starting welding quality automated watch-keeping facility and cut-out
Alarm signal.
As a kind of improvement of Pyroelectric Media welding resistance micro welding contact welding machine of the present invention, described welding quality monitoring electricity
The road monitor value with the 90%-98% of the real-time detected value of the output energy of pulse as welding quality.
As a kind of improvement of Pyroelectric Media welding resistance micro welding contact welding machine of the present invention, described parallel electrode welding head is
Bonding tool tip contact parallel electrode welding head, cylindrical bonding tool tip Contiuum type parallel electrode welding head, or the most flat
Shape bonding tool tip Contiuum type parallel electrode welding head.
Relative to prior art, the present invention is applying identical bulky capacitor, identical pulse output transformer,
Under conditions of composition other signal circuit of the source of welding current, power circuit are the most identical, it is proposed that two groups are amplified electricity
Road and the structure of switchable apparatus thereof, two groups of amplifying circuits are each independent, realize one group by switching device and put
Big circuit works and another organizes the switching that amplifying circuit is standby, can meet parallel electrode welding head in welding difference
Different welding requirements when enamel-covered wire and different workpieces.
Additionally, the present invention has the special construction of resistance joint portion according to parallel electrode welding head tip, it is right to propose
The real-time detection of the parallel electrode welding head output energy of pulse.Pyroelectric Media welding resistance micro welding contact welding machine bag of the present invention
Include spot welding head, mash welder main frame, and include pulse output electrical quantity real-time detection circuit and welding quality
The welding quality automated watch-keeping facility of observation circuit, pulse output electrical quantity real-time detection circuit is by being arranged on
The current sensor of output cable and central processing circuit achieve the parallel electrode welding head output energy of pulse
Detection in real time；The certain percentage of real-time for output energy of pulse detected value is then arranged by welding quality observation circuit
For the monitor value of parallel electrode welding head welding quality, the output energy of pulse when parallel electrode welding head operation is low
Warning is i.e. sent, it is achieved the automatic monitoring to parallel electrode welding head welding quality in monitor value.Therefore, this
Bright weld a large amount of enamel-covered wire workpiece for parallel electrode welding head and provide one and not only automatically can monitor welding quality but also can
Automatically the Pyroelectric Media welding resistance micro welding contact welding machine of parallel electrode welding head duty is monitored.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings and detailed description of the invention, Pyroelectric Media welding resistance micro welding contact welding machine of the present invention is carried out
Describe in detail, wherein:
Figure 1A is the schematic block circuit diagram of Pyroelectric Media welding resistance micro welding contact welding machine of the present invention, illustrated therein is weldering
Connect quality automated watch-keeping facility and two groups of amplifying circuits and switching device thereof.
Figure 1B is the schematic block circuit diagram of Pyroelectric Media welding resistance micro welding contact welding machine of the present invention, illustrated therein is weldering
Connect quality automated watch-keeping facility.
Fig. 2 is the knot of the various parallel electrode welding heads being applicable to Pyroelectric Media welding resistance micro welding contact welding machine of the present invention
Structure schematic diagram and corresponding enlarged drawing.
Fig. 3 is work process and the principle schematic of parallel electrode welding head.
Fig. 4 A is the structural representation of the mash welder main frame of Pyroelectric Media welding resistance micro welding contact welding machine of the present invention.
Fig. 4 B is the structural representation of Pyroelectric Media welding resistance micro welding contact welding machine of the present invention, illustrated therein is welding
The display on mash welder mainframe box front panel of the quality automated watch-keeping facility and operation.
Detailed description of the invention
In order to make the goal of the invention of the present invention, technical scheme and Advantageous Effects thereof become apparent from, below tie
Close the drawings and specific embodiments, the present invention is further elaborated.It should be appreciated that this theory
Detailed description of the invention described in bright book is only used to explain the present invention, is not intended to limit the present invention.
Below in conjunction with Figure 1A and Fig. 4 A, describe the two of Pyroelectric Media welding resistance micro welding contact welding machine of the present invention in detail
Organize amplifying circuit and the structure of switching device thereof and operation principle.
Figure 1A shows two groups of amplifying circuits and the schematic block circuit diagram in switching device source thereof: civil power 101 passes through
Rectification circuit 102 enters capacitor charging discharging circuit 103, two groups of the most independent amplifying circuits 104-1,104-2
On two electrical sockets 104-3, the 104-4 being each electrically connected with amplifying circuit are installed, and from central authorities' process
The attaching plug 112 that circuit 107 and pulse output transformer 105 are drawn, by plug 112 and electrical socket
104-3 or 104-4 connects, it is achieved two groups of amplifying circuits only have one group of work and another group is standby and switching.On
Two electrical sockets 104-3,104-4 and the plug 112 of stating two groups of amplifying circuits 104-1,104-2 constitute this
Two groups of amplifying circuits of invention proposition and switching device thereof.It should be noted that Figure 1A amplifies electricity except two groups
Outside road and switching device thereof, other parts are identical with Figure 1B.
Two groups of amplifying circuits and switching device thereof are described below at Pyroelectric Media welding resistance micro welding contact welding machine of the present invention
On application.
Pyroelectric Media welding resistance micro welding contact welding machine of the present invention mainly applies tip contact type parallel electrode welding head and point
End Contiuum type parallel electrode welding head, its most advanced and sophisticated intrinsic resistance is between 2m Ω-10m Ω, and user weldsEnamel-covered wire lead-out wire, solder pad includes gold plated pads workpiece, tin plating pad workpiece,
Welding manner has manually welding or automatic welding, uses the fluctuation requiring pulse output power very big, Ke Yi
100-1000VA.Require that pulse output power is little when welding little line footpath enamel-covered wire, good linearity, and big in welding
Require during the enamel-covered wire of line footpath that pulse output power is big, require that when automatic welding circuit anti-interference ability is strong.This
Outward, pulse is exported by the difference of welded piece pad also different requirement, and prior art resistance spot weld welding machine
Amplifying circuit all only have one group, it is impossible to meet various different welding requirements.
Amplifying circuit not only can be made up of audion, but also can be made up of field effect transistor.Present inventor
Carried out following test: to apply identical bulky capacitor and identical pulse output transformer (two bulky capacitor rule
Lattice are 250V, 6800UF, and pulse output transformer specification is EI162 × 100, and transformation ratio is 25:1), group
Under conditions of becoming other signal circuit of the source of welding current, power circuit the most identical, imitate with audion and field respectively
Different amplifying circuits should be formed by pipe, find following features: with the welding electricity of the amplifying circuit of audion composition
Source maximum impulse exports at about 500VA, has that pulse output linearity is good, precision is high, it is adaptable to weld little
Line footpath enamel-covered wire, gold plated pads workpiece and manually weld；Welding electricity with the amplifying circuit of field effect transistor composition
Source maximum impulse exports about 1000VA, has that the output energy of pulse is big, that amplifying circuit capacity of resisting disturbance is strong is excellent
Point, it is adaptable to weld the enamel-covered wire in slightly thick line footpath, tin plating pad workpiece and automatic welding.
It is the least output owing to realizing pulse output power at 1000VA for electric resistance welding field, this
Bright propose under conditions of the identical bulky capacitor of application and identical pulse output transformer two groups of amplifying circuits and
The structure of its switching device, by the switching to two groups of the most independent amplifying circuits, when one of which is amplified
During circuit work, another group amplifying circuit, as standby, not only meets the different welding requirements of various welding,
Also improve the safety factor of Pyroelectric Media welding resistance micro welding contact welding machine.
Fig. 4 A shows that two groups of amplifying circuits and switching device thereof are shown in the structure of mash welder mainframe box rear board
It is intended to.
The most independent one group in two groups of amplifying circuits is the amplifying circuit being made up of audion, and another group is
The amplifying circuit being made up of field effect transistor, as shown in Figure 4 B, Pyroelectric Media welding resistance micro welding contact welding machine of the present invention
Including: mash welder main frame 400, mash welder main frame front panel 401, spot welding head 402, on spot welding head
Welding head holder 403, parallel electrode welding head 404 is had to be arranged on welding head holder.
The switching device of two groups of amplifying circuits can have various method, such as uses the side of permutator
Method, but owing to the connection of amplifying circuit Yu other circuit needs to turn on high-power high-current, give and use conversion to open
Closing and increase the biggest difficulty, the present invention proposes to use two electrical sockets and the method for a plug, preferably
Meet the conducting to high-power high-current.It is described as follows below in conjunction with the accompanying drawings:
As shown in Figure 4 A, mash welder main frame 400 is installed on the rear board of cabinet two electrical sockets and electric mortiser
Head can use the air plug that can turn on three pins more than 20A electric current.As shown in Figure 4 A, the two of air plug
Individual electrical socket 409,410 is arranged on the rear board of mash welder main frame 400 cabinet, processes electricity from central authorities accordingly
The plug 411 that road and pulse output transformer are drawn can also draw from mash welder main frame 400 cabinet rear board
Go out.When plug 411 is connected to one of them electrical socket, can be achieved with one group of amplifying circuit work, separately
One group of amplifying circuit is as standby, and two groups of amplifying circuits can mutually switch.Use air plug to make two groups and amplify electricity
The connection on road and switching have simple in construction, easy to use, economical and practical advantage.
The most then the welding quality automated watch-keeping facility being electrically connected with mash welder main frame 400 is introduced.
The present invention to weld a large amount of identical enamel-covered wire workpiece for parallel electrode welding head provides welding quality automatically to supervise
Survey, therefore first have to the structure to parallel electrode welding head, parallel electrode welding head is welded the worked of enamel-covered wire
Journey and principle, have clearly the relation of the parallel electrode welding head output energy of pulse with the output energy of pulse welded
Understand:
One, the structure of parallel electrode welding head: the present invention claims the welding metal being connected with source of welding current both positive and negative polarity
For electrode, two electrodes are placed in welding the same side and are referred to as parallel pole, two parallel electrodes are solid
Be connected referred to as parallel electrode welding head, as in figure 2 it is shown, general parallel electrode welding head has following a few kind
Type: one is bonding tool tip insulation parallel electrode welding head, and tip insulation formula parallel electrode welding head 201 includes putting down
Two electrodes 201-1,201-2 of row, the intermediate insulation fixed layer 201-3 between two electrodes and two electrodes
Bonding tool tip portion 201-4；Two is that bonding tool tip contact parallel electrode welding head 202, nib contacts formula are parallel
Welding head of electrode 202 includes that parallel two electrode 202-1,202-2, the intermediate insulation between two electrodes fix
The intrinsic resistance joint portion 202-4 of the bonding tool tip contact of layer 202-3 and two electrodes；Three is cylindrical point
End Contiuum type parallel electrode welding head 203, cylindrical most advanced and sophisticated Contiuum type parallel electrode welding head 203 includes parallel
Two electrodes 203-1,203-2, the intermediate insulation fixed layer 203-3 between two electrodes and the weldering of two electrodes
The intrinsic resistance joint portion 203-4 of head disjunctor；Four is pancake bonding tool tip Contiuum type parallel electrode welding head
204, pancake bonding tool tip Contiuum type parallel electrode welding head 204 include parallel two electrode 204-1,
204-2, the middle separation trough 204-3 between two electrodes and the intrinsic resistance knot of the soldering tip disjunctor of two electrodes
Conjunction portion 204-4.It is pointed out that due to nib contacts formula or most advanced and sophisticated Contiuum type parallel electrode welding head, its weldering
The most advanced and sophisticated feature structure with intrinsic resistance joint portion of head, the most only nib contacts formula or most advanced and sophisticated disjunctor are parallel
Welding head of electrode just can weld enamel-covered wire.Additionally, for the ease of narration, without specified otherwise, this
Bright mentioned parallel electrode welding head is understood as bonding tool tip Contiuum type parallel electrode welding head.
Two, work process and principle: Fig. 3 of parallel electrode welding head directly welding enamelled wires is parallel pole weldering
The work process of head directly welding enamelled wires and principle schematic: first, at Pyroelectric Media welding resistance micro welding contact
Preset on welding machine main frame and reserve pulse output electrical quantity, with parallel electrode welding head 301 to by welding lacquered wire 302
Pressurizeing to trigger the source of welding current on pad 303, pulse output circuit 304 first passes through parallel electrode welding head
Most advanced and sophisticated intrinsic resistance joint portion 305, when the electric current density of intrinsic resistance joint portion 305 reaches certain value,
Bonding tool tip produces electric spark, and the insulating barrier on enamel-covered wire is pressed by electric spark as thermocompression bonding and removed, arteries and veins then
Punching output energy transfers to act on exposed enamel-covered wire 302 and pad 303, it is achieved it is right to have exported in same pulse
Glazed wire paint removing and welding.
Three, the relation of the parallel electrode welding head output energy of pulse and the output energy of pulse welded: in order to understand
The relation of the parallel electrode welding head output energy of pulse and the output energy of pulse welded, the present invention has done following three
Individual experiment:
Experiment one: presetting pulse output voltage is on the pulse output source of welding current of constant voltage regulation and control
1.10V, pulse output time are 10ms, set electrode force as 10N, with bonding tool tip on spot welding head
The resistance value of intrinsic resistance joint portion is the most advanced and sophisticated Contiuum type parallel electrode welding head of the 3m Ω paint to Φ 0.08mm
Envelope curve carries out welding and obtain good welds effect on pad.
The present invention is welding with Agilent oscillograph and current oscilloscope above-mentioned and obtaining good welds effect
Parallel electrode welding head detect；The present invention is again to the same parallel electrode welding head not carrying out welding job
Detect with identical electrical quantity conduction pulses output electric current, find pulse output waveform and the electric current of the two
Waveform is identical, and the pulse output circuit that current oscilloscope initially shows is all 360A.
Experiment two: the present invention is adjusted to 0.90V presetting for the pulse output voltage of above-mentioned experiment again, other owns
Condition and electrical quantity do not change, and not prison welding occurs in result, parallel to occurring that not prison welding is welded
Welding head of electrode Agilent oscillograph and current oscilloscope detect, the most also with same electrical quantity to not having
There is the same parallel electrode welding head carrying out welding to detect, find that the two is at oscillographic pulse output waveform
The most identical, the inceptive impulse output electric current of the two is all 300A.
Experiment three: the bare copper wire of Φ 0.08mm is also existed by the present invention with the parallel electrode welding head of bonding tool tip insulation
Welding on same pad, pulse output circuit when current oscilloscope detection obtains good welds effect is
/ 3rd of 115A, only bonding tool tip disjunctor resistance 3m Ω parallel electrode welding head pulse output circuit are left
Right.
From above-mentioned experiment it can be seen that identical pulse exports presetting normal parallel electrode welding head, its arteries and veins
The punching output real-time detected value of energy is all constant；Parallel electrode welding head same pulse output realize paint removal and
Welding, is that the pulse produced when turning on electric current by intrinsic resistance joint portion, parallel electrode welding head tip is exported
Energy completes, and the detection in real time to the parallel electrode welding head output energy of pulse reflects the intrinsic electricity of bonding tool tip
Whether the resistance of resistance joint portion there is irreversible change, so the reality to the parallel electrode welding head output energy of pulse
Time detection the most still parallel electrode welding head duty detection, be also that welding quality is in the output energy of pulse
Detection.
Below in conjunction with Figure 1B and Fig. 4 B, describe welding quality automated watch-keeping facility in detail and show in Pyroelectric Media welding resistance
Structure on microwelding mash welder and operation principle, Figure 1B is that welding quality automated watch-keeping facility is at the source of welding current
Schematic block circuit diagram.
Refer to Figure 1B, civil power 101 enters capacitor charging discharging circuit 103 through rectification circuit 102, then passes through
Amplifying circuit 104 enters pulse output transformer 105, and the output cable of pulse output transformer is provided with electricity
The pulse output circuit that parallel electrode welding head 109 is provided by flow sensor with detection, it is achieved to enamel-covered wire workpiece
110 paint removal on pad and welding.The welding head holder installing parallel electrode welding head 109 is set by feedback line
Being equipped with negative-feedback circuit 108, the pulse out-put supply of constant voltage regulation and control was preset by pulse output voltage and time
Fixed 106 entrance central processing circuits 107, including negative-feedback circuit 108 and capacitor charging discharging circuit 103, amplify
Circuit 104 all enters central processing circuit 107 and accepts its instruction, it is achieved pulse output transformer 105 is defeated
Going out accurate pulse output circuit, the pulse output electrical quantity in welding quality automated watch-keeping facility 111 is real-time
Testing circuit is by including pulse output electricity with central processing circuit 107 and being achieved by current sensor
Stream, the real-time detection of pulse output time, pulse output voltage, obtaining the real-time detection of above-mentioned electrical quantity
After, by process and the Ohm's law of single-chip microcomputer, i.e. can get the reality of parallel electrode welding head pulse output resistance
Time detection, further according to Joule's law Q=I2RT draws the real-time detection of the output energy of pulse.
Welding quality observation circuit in welding quality automated watch-keeping facility 111 is then by the one of the output energy of pulse
Determining percentage ratio and be provided parallel to welding head of electrode welding quality monitor value, when parallel electrode welding head operation, pulse is defeated
Go out energy and i.e. send alarm signal less than monitor value, it is achieved the automatic monitoring to parallel electrode welding head welding quality.
Fig. 4 B shows the Pyroelectric Media welding resistance micro welding contact welding machine of the present invention case front panel at mash welder main frame
On display and operation chart.
Refer to shown in Fig. 4 B, Pyroelectric Media welding resistance micro welding contact welding machine of the present invention includes mash welder main frame, point
Welding head and welding quality automated watch-keeping facility.As it can be seen, there is welding head holder 403 on spot welding head 402, flat
Row welding head of electrode 404 is arranged on welding head holder, except peace on the case front panel 401 of mash welder main frame 400
Outside equipped with the pulse presetting dial switch 405 of output, be also equipped with LCDs 406, numeral dial-up is opened
Pass 407 and startup/roof-cut resistence 408.
LCDs 406 is for the display detected various pulses output electrical quantity in real time, including display arteries and veins
Punching output energy, pulse output resistance, pulse output circuit, pulse output voltage, pulse output time etc.,
May also display the real-time detection of each parallel electrode welding head welding times.
Numeral toggle switch 407 is for being set to put down by the certain percentage of real-time for output energy of pulse detected value
The monitor value of row welding head of electrode welding quality, as long as therefore numeral toggle switch 407 can two time actually used
Number can be achieved with the detection in real time of the output energy of pulse to be set to monitor value, is such as set to 95, means that
Monitor value is the 95% of output energy of pulse detected value.
Startup/roof-cut resistence 408 has actually used meaning, obtains with parallel electrode welding head and be satisfied with welding during operation
After effect, switch 408 being switched to start position, welding quality automated watch-keeping facility enters duty, as
Really during parallel electrode welding head operation, pulse output energy measuring, less than the monitor value set, i.e. sends alarm signal,
Prompting needs to process the condition affecting welding quality, and alarm signal needs after showing 408 turns of switch
Change to off-position and could close alarm signal.
Relative to prior art, the present invention is applying identical bulky capacitor, identical pulse output transformer,
Under conditions of composition other signal circuit of the source of welding current, power circuit are the most identical, it is proposed that two groups are amplified electricity
Road and the structure of switchable apparatus thereof, two groups of amplifying circuits are each independent, realize one group by switching device and put
Big circuit works and another organizes the switching that amplifying circuit is standby, can meet parallel electrode welding head in welding difference
Different welding requirements when enamel-covered wire and different workpieces.
Additionally, the present invention has the special construction of resistance joint portion according to parallel electrode welding head tip, it is right to propose
The real-time detection of the parallel electrode welding head output energy of pulse.Pyroelectric Media welding resistance micro welding contact welding machine bag of the present invention
Include spot welding head, mash welder main frame, and include pulse output electrical quantity real-time detection circuit and welding quality
The welding quality automated watch-keeping facility of observation circuit, pulse output electrical quantity real-time detection circuit is by being arranged on
The current sensor of output cable and central processing circuit achieve the parallel electrode welding head output energy of pulse
Detection in real time；The certain percentage of real-time for output energy of pulse detected value is then arranged by welding quality observation circuit
For the monitor value of parallel electrode welding head welding quality, the output energy of pulse when parallel electrode welding head operation is low
Warning is i.e. sent, it is achieved the automatic monitoring to parallel electrode welding head welding quality in monitor value.Therefore, this
Bright weld a large amount of enamel-covered wire workpiece for parallel electrode welding head and provide one and not only automatically can monitor welding quality but also can
Automatically the Pyroelectric Media welding resistance micro welding contact welding machine of parallel electrode welding head duty is monitored.
The announcement of book and teaching according to the above description, those skilled in the art in the invention can also be to above-mentioned
Embodiment carries out suitable change and amendment.Therefore, the invention is not limited in disclosed and described above
Some modifications and changes of the present invention be should also be as falling into the guarantor of the claim of the present invention by detailed description of the invention
In the range of protecting.Although additionally, employ some specific terms in this specification, but these terms are simply
Facilitate explanation, the present invention is not constituted any restriction.
Claims (11)
1. a Pyroelectric Media welding resistance micro welding contact welding machine, comprising:
Mash welder main frame, it is provided with the source of welding current comprising central processing circuit and pulse output transformer；With
And
Spot welding head, it is provided with the welding head holder that can install parallel electrode welding head, and spot welding head is exported by pulse
The output cable of transformator is electrically connected with mash welder main frame；
It is characterized in that, described Pyroelectric Media welding resistance micro welding contact welding machine includes being electrically connected with mash welder main frame
Two groups of amplifying circuits and switching device, two groups of amplifying circuits are each independent, realize one by switching device
Group amplifying circuit works and another group amplifying circuit is standby and switching.
Pyroelectric Media welding resistance micro welding contact welding machine the most according to claim 1, it is characterised in that described
In two groups of amplifying circuits one group is the amplifying circuit being made up of audion, and another group is for be made up of field effect transistor
Amplifying circuit.
Pyroelectric Media welding resistance micro welding contact welding machine the most according to claim 1, it is characterised in that described
Two electrical sockets that two groups of amplifying circuits and switching device thereof include being connected with one of which amplifying circuit respectively,
The plug drawn from central processing circuit and pulse output transformer, plug is only electric with one of them
Socket connects, it is achieved the work of one group of amplifying circuit and another group amplifying circuit is standby.
Pyroelectric Media welding resistance micro welding contact welding machine the most according to claim 3, it is characterised in that described
Electrical socket and plug include the air plug that can turn on three pins more than 20A electric current.
Pyroelectric Media welding resistance micro welding contact welding machine the most according to claim 3, it is characterised in that described
Electrical socket is arranged on the cabinet rear board of mash welder main frame.
Pyroelectric Media welding resistance micro welding contact welding machine the most according to claim 1, it is characterised in that described
Mash welder main frame also includes the welding quality automated watch-keeping facility being electrically connected with mash welder main frame.
Pyroelectric Media welding resistance micro welding contact welding machine the most according to claim 6, it is characterised in that described
Welding quality automated watch-keeping facility comprises pulse output electrical quantity real-time detection circuit and welding quality monitoring electricity
Road；Pulse output electrical quantity real-time detection circuit realizes parallel electricity by current sensor with central processing circuit
The real-time detection of the pole soldering tip output energy of pulse；Parallel electrode welding head pulse is exported by welding quality observation circuit
The certain percentage of the real-time detected value of energy is provided parallel to the monitor value of welding head of electrode welding quality, when parallel
During welding head of electrode operation, the energy of output sends alarm signal less than monitor value, it is achieved to parallel electrode welding head
The automatic monitoring of welding quality.
Pyroelectric Media welding resistance micro welding contact welding machine the most according to claim 7, it is characterised in that described
Pulse output electrical parameters detection circuit is to pulse output circuit, the output energy of pulse, pulse output resistance, arteries and veins
Rush output voltage, pulse output time is monitored in real time, and examines the welding times of parallel electrode welding head in real time
Survey.
Pyroelectric Media welding resistance micro welding contact welding machine the most according to claim 7, it is characterised in that described
The panel of mash welder main frame is provided with LCDs, numeral toggle switch and startup/roof-cut resistence, liquid crystal
Display screen shows the pulse output electrical quantity of detection in real time, and the output energy of pulse is detected by numeral toggle switch in real time
Value is set to welding quality monitor value with certain percentage, and it is automatic that startup/roof-cut resistence is used for starting welding quality
Monitoring device and cut-out alarm signal.
Pyroelectric Media welding resistance micro welding contact welding machine the most according to claim 9, it is characterised in that described
The monitoring with the 90%-98% of the real-time detected value of the output energy of pulse as welding quality of the welding quality observation circuit
Value.
11. Pyroelectric Media welding resistance micro welding contact welding machines according to claim 1, it is characterised in that described
Parallel electrode welding head is bonding tool tip contact parallel electrode welding head, the cylindrical parallel electricity of bonding tool tip Contiuum type
Pole soldering tip, or flat bonding tool tip Contiuum type parallel electrode welding head.
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| CN2016101849128 | 2016-03-26 | ||
| CN201610184912 | 2016-03-26 |
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| CN201610497781.9A Active CN105880819B (en) | 2016-03-26 | 2016-06-27 | Hot pressing electric resistance welding micro welding contact welding machine |
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Cited By (3)
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| CN108817635A (en) * | 2018-07-13 | 2018-11-16 | 佛山市百明实业有限公司 | A kind of mash welder protective plate |
| CN109530946A (en) * | 2019-01-05 | 2019-03-29 | 闫羽 | A kind of hot pressing electric resistance welding micro welding connects equipment |
| US20200384568A1 (en) * | 2017-03-31 | 2020-12-10 | Amada Miyachi UK Limited | Welding apparatus and method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205733405U (en) * | 2016-03-26 | 2016-11-30 | 广州微点焊设备有限公司 | Pyroelectric Media welding resistance micro welding contact welding machine |
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Also Published As
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| CN105880819B (en) | 2019-03-26 |
| CN205733405U (en) | 2016-11-30 |
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