CN206316530U - Use for laboratory precision pulse welding machine - Google Patents
Use for laboratory precision pulse welding machine Download PDFInfo
- Publication number
- CN206316530U CN206316530U CN201621294628.8U CN201621294628U CN206316530U CN 206316530 U CN206316530 U CN 206316530U CN 201621294628 U CN201621294628 U CN 201621294628U CN 206316530 U CN206316530 U CN 206316530U
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- capacitor bank
- switch
- state
- discharge
- charge
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- 238000003466 welding Methods 0.000 title claims abstract description 30
- 239000003990 capacitor Substances 0.000 claims abstract description 77
- 238000000034 method Methods 0.000 claims abstract description 14
- 230000008569 process Effects 0.000 claims abstract description 12
- 230000005611 electricity Effects 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 238000010276 construction Methods 0.000 abstract 1
- 238000000840 electrochemical analysis Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004021 metal welding Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Arc Welding Control (AREA)
Abstract
The utility model is related to a kind of accurate pulse welding machine of use for laboratory, including capacitor bank, the charge circuit for being connected with capacitor bank and being charged to capacitor bank, the discharge loop for being connected with capacitor bank and making capacitor set discharge, the charge and discharge switch by capacitor bank access charge circuit or discharge loop；Plug that charge circuit includes being used for connecting external power supply, the power switch being connected with plug, it is arranged between power switch and capacitor bank and is used for the charge adjustment circuit that the charging process of capacitor bank is adjusted；Discharge loop includes two terminals for being connected to-be-welded pieces respectively being connected with the two ends of capacitor bank.Charge adjustment circuit includes the state selecting switch, discharge resistance, voltmeter being arranged between power switch and capacitor bank；Voltmeter is parallel to capacitor bank two ends.The utility model realizes and welded that its pad is small, simple in construction, easy to use by capacitor bank discharge and recharge.
Description
Technical field
The utility model belongs to metal welding field, and in particular to a kind of to realize the use for laboratory of miniature solder joint welding
Accurate pulse welding machine.
Background technology
In high-temperature high pressure water corrosion test, the kettle of sample and autoclave is insulation, in order to carry out electro-chemical test
Or control, it is necessary to use wire（Working electrode lead, generally using platinum filament）With sample（Working electrode）Spot welding is carried out, so as to by work
Make to be connected on electro-chemical test instrument outside the electric signal extraction kettle of electrode.And existing spot welding acc power is larger, voltage is higher,
Pad is also larger, it usually needs by ability and sample welding after the wire termination bending of diameter very little, this can cause wire to disappear
Consume speed.Therefore in order to solve the problems, such as the spot welding between wire and sample, manufacture a kind of compact simplified mash welder has very much
It is necessary.
The content of the invention
The purpose of this utility model is to provide that a kind of power is smaller, solder joint is smaller, is particularly suitable for use in electro-chemical test and welds
Connect the accurate pulse welding machine of the use for laboratory of wire and sample.
To reach above-mentioned purpose, the technical solution adopted in the utility model is：
A kind of accurate pulse welding machine of use for laboratory, for two to-be-welded pieces are spot-welded together, it includes capacitor
Group, the charge circuit for being connected with the capacitor bank and being charged to the capacitor bank, it is connected with the capacitor bank
Connect and make the discharge loop of the capacitor set discharge, the capacitor bank is accessed into the charge circuit or the discharge loop
Charge and discharge switch；
The charge circuit include be used for connect external power supply plug, be connected with the plug power switch, set
It is placed between the power switch and the capacitor bank and is used for filling that the charging process of the capacitor bank is adjusted
Electricity regulation circuit；
The discharge loop, which includes be connected with the two ends of the capacitor bank two, to be used to be connected described to be welded respectively
The terminal of fitting.
It is preferred that, the charge adjustment circuit includes the state being arranged between the power switch and the capacitor bank
Selecting switch, discharge resistance, voltmeter；The voltmeter is parallel to the capacitor bank two ends；
The state selecting switch can switch between pressure-increasning state, halted state and step-down state；
When the state selecting switch switches to the pressure-increasning state, the plug is through the power switch, the shape
State selecting switch and the charge and discharge switch and constitute loop with the capacitor bank；Described in being switched to when the state selecting switch
During halted state, the plug is disconnected with the capacitor bank；When the state selecting switch switches to the step-down shape
During state, the capacitor bank is connected into loop with the discharge resistance.
It is preferred that, the charge circuit be additionally included in when the state selecting switch switches to pressure-increasning state be connected to it is described
Capacitor bank two ends and the protection circuit protected to charging process.
It is preferred that, the protection circuit includes the relay as overvoltage protection, with adjusting starting to control for the relay
The regulating resistor of voltage, the coil of the relay is in series with the regulating resistor, and the contact of the relay is arranged at institute
State between state selecting switch and the capacitor bank.
It is preferred that, the charge circuit also include be arranged between the power switch and the charge adjustment circuit and incite somebody to action
The alternating current that the plug is obtained by the external power supply is converted to the rectification circuit of direct current.
It is preferred that, the rectification circuit is bridge rectifier.
It is preferred that, the plug is connected with the indicator lamp indicated power supply status.
It is preferred that, the indicator lamp is serially connected with current-limiting resistance.
It is preferred that, the charge and discharge switch uses double-point double-throw switch.
It is preferred that, the capacitor bank includes electric capacity that is multiple and connecing, is connected with the electric capacity and adjusts access electric capacity
Multiple quantity selecting switch of quantity, be connected with the electric capacity and be used for adjustment access electric capacity quantity when prevent the quantity
Selecting switch sticks together multiple fail-safe resistance of failure, and the fail-safe resistance and the quantity selecting switch are corresponding simultaneously
Connect.
Because above-mentioned technical proposal is used, the utility model has following advantages compared with prior art：The utility model
Mash welder welding process is realized by the discharge and recharge of capacitor bank, its pad can be with very little, such as directly by the end face of wire
It is welded on sample without bending, so as to reach the purpose of reduction conductor wire losses.The spot welding machine structure is simple, using non-
It is often convenient.
Brief description of the drawings
Accompanying drawing 1 is the circuit diagram of the accurate pulse welding machine of use for laboratory of the present utility model.
In the figures above：1st, capacitor bank；2nd, charge circuit；3rd, discharge loop；4th, plug；5th, rectification circuit；6th, terminal.
Embodiment
Shown embodiment is further described to the utility model below in conjunction with the accompanying drawings.
Embodiment one：As shown in Figure 1, it is a kind of to be used for two to-be-welded pieces（Such as wire and sample）Spot-welded together
Use for laboratory precision pulse welding machine, including capacitor bank 1, charge circuit 2, discharge loop 3 and charge and discharge switch K3.
Charge and discharge switch K3 uses double-point double-throw switch, and two disconnecting link K3-a, K3-b one end are connected to capacitor bank 1
Two ends, charge and discharge switch K3 is used to capacitor bank 1 accessing charge circuit 2 or discharge loop 3, therefore two disconnecting links K3-a, K3-
The b other end, which respectively has to constitute in two contacts, a contact access charge circuit 2, fills contact, the access electric discharge of another contact
Constituted in loop 3 and put contact.
Charge circuit 2 switched by charge and discharge constitute fill contact and be connected with capacitor bank 1 so that for capacitor
Group 1 is charged.Charge circuit 2 includes plug 4, power switch K1, rectification circuit 5, charge adjustment circuit.Plug 4 uses three
N pin package n 4, it can connect external power supply.The live wire and zero line of plug 4 connect power switch K1 after being drawn through wire.Power supply is opened
Pass K1 is linked switch, is connected respectively with the live wire and zero line of plug 4.Rectification circuit 5 uses bridge rectifier, it with electricity
Source switch K1 is connected, so that the 220V alternating currents that just plug 4 is obtained by external power supply are converted to Rectified alternating current.Rectified current
Capacitor bank 1 is connected behind road 5 through current-limiting resistance R1, charge adjustment circuit again.Charge adjustment circuit is used for capacitor bank 1
Charging process is adjusted, and it includes state selecting switch K2, discharge resistance R4 and voltmeter V.Voltmeter V is parallel to capacitor
1 two ends of group.State selecting switch K2 is arranged between power switch K1 and capacitor bank 1, and after current-limiting resistance R1.Shape
State selecting switch K2 includes two disconnecting links K2-a, K2-b of linkage, and the two disconnecting links K2-a, K2-b one end are electric with current limliting respectively
Resistance R1, charge and discharge switch K3 contact of filling are connected, and two disconnecting links K2-a, K2-b other end then have three groups of contacts, respectively
For a liter contact, stop contact and drop contact, they correspond to pressure-increasning state, halted state and step-down state, so that state is selected
Selecting switch K2 can switch between pressure-increasning state, halted state and step-down state.State selecting switch K2 drop contact portion
To discharge resistance R4 one end, and the discharge resistance R4 other end is then connected to one end of capacitor bank 1.Work as state selecting switch
When K2 switches to pressure-increasning state, two disconnecting link K2-a, K2-b are connected to a liter contact, and now plug 4 is through power switch K1, state
Selecting switch K2 and charge and discharge switch K3 and constitute loop with capacitor bank 1, and capacitor bank 1 is charged so as to realize.Condition selecting
Switch K2's stops contact vacantly, and when state selecting switch switches to halted state, plug 4 is disconnected with capacitor bank 1.When
When state selecting switch K2 switches to step-down state, capacitor bank 1 is connected with discharge resistance R4 into loop, now capacitor
Group 1 is discharged and is depressured by discharge resistance R4.
In addition, charge circuit 2 also includes protection circuit and indicates circuit.Protection circuit includes the coil of the relay of concatenation
J and regulating resistor R3, the contact of relay is then arranged between state selecting switch K2 and capacitor bank 1.When condition selecting is opened
When concern shifts to pressure-increasning state, protection circuit is connected to the two ends of capacitor bank 1, so as to be protected to charging process.Relay
Device is used to carry out capacitor bank 1 overvoltage protection, and regulating resistor R3 then starts to control voltage with adjust relay.According to electric capacity
The pressure-resistant data of device group 1（Such as 100V）Select suitable regulating resistor to adjust relay starts to control voltage.In charging process,
When the charging voltage of capacitor bank 1, which exceedes, starts to control voltage, the actuating of relay but capacitor bank 1 disconnect charge circuit 2 and stopped
Only charge.Now, because state selecting switch K2 still connects a liter contact, thus self-locking action is produced, maintains relay being powered
State, so as to ensure that the charging voltage of capacitor bank 1 not over permissible value.Indicate circuit be connected with the two ends of plug 4 and
For indicating power supply status, it includes indicator lamp and the current-limiting resistance R2 mutually concatenated with indicator lamp.Indicate that circuit is set
Put the outlet side in rectification circuit 5.Wherein, indicator lamp uses light emitting diode D.
Discharge loop 3 switchs the putting contact of K3 by charge and discharge and is connected with capacitor bank 1, so that capacitor bank 1 is put
Electricity.Discharge loop 3 includes two terminals 6 for being connected to-be-welded pieces respectively being connected with the two ends of capacitor bank 1, terminal
6 can be using forms such as wire clamps.
Many numbers that capacitor bank 1 includes electric capacity C that is multiple and connecing, is connected with electric capacity C and adjusts access electric capacity quantity
Selecting switch K4-K6 is measured, is connected with electric capacity C and is used to prevent quantity selecting switch K4-K6 in adjustment access electric capacity quantity
The multiple fail-safe resistance R5-R7 for the failure that sticks together, fail-safe resistance R5-R7 is corresponding with quantity selecting switch K4-K6 and connects.
The application method of the accurate pulse welding machine of above-mentioned use for laboratory comprises the following steps：
1st, charge：Power turn-on switchs K1 and switched on power, and charge and discharge switch K3 is allocated into " filling ", state selecting switch K2 is dialled
To " liter ", the 220V alternating currents of input are converted into pulsating direct current by bridge rectifier 5, to electric capacity after current-limiting resistance R1 current limlitings
Device group 1 charges.Voltmeter V indicates the charging voltage of capacitor bank 1 during this；, can if having reached required voltage value
To stop charging, state selecting switch K2 is allocated to " stopping "；If charging voltage is too high, state selecting switch K2 can be allocated to
" putting ", at this moment the voltage of capacitor bank 1 discharged by discharge resistance R4, when voltage drops to predetermined value again by state selecting switch
" stopping " is allocated to, so as to complete the charging process of capacitor bank 1 and the voltage of capacitor bank 1 is reached desirable value；
2nd, discharge：After two terminals 6 of discharge loop 3 are connected respectively with working electrode lead and sample, by charge and discharge
Switch K3 is allocated to " putting ", and the electric energy that capacitor bank 1 is stored up can be discharged by discharge loop 3.The hand-held working electrode that is connected with draws
The terminal 6 of line is moved to the position to be welded on sample, is discharged in the realization in a flash of working electrode lead and sample contacts, by force
Big discharge current produces high temperature by contact point, so that the end face of working electrode lead is welded into sample by flash welding
On, complete a welding process.
Because charge and discharge switch K3 selects double-point double-throw switch, in discharge process, the discharge loop 3 used and charging are welded
Mains isolation in loop 2 is opened, therefore will not cause electric shock accidents.
The accurate pulse welding machine of above-mentioned use for laboratory is particularly suitable for use in the weldering between the lead of sample and diameter less than 0.8mm
Connect, be readily adaptable for use in other small welding fields.
Above-described embodiment is only to illustrate technical concept of the present utility model and feature, and its object is to allow be familiar with technique
Personage can understand content of the present utility model and implement according to this, protection domain of the present utility model can not be limited with this.
All equivalent change or modifications made according to the utility model Spirit Essence, should all cover protection domain of the present utility model it
It is interior.
Claims (10)
1. the accurate pulse welding machine of a kind of use for laboratory, for two to-be-welded pieces are spot-welded together, it is characterised in that：It is wrapped
Include capacitor bank, the charge circuit for being connected with the capacitor bank and being charged to the capacitor bank and the electric capacity
Device group is connected and makes the discharge loop of the capacitor set discharge, the capacitor bank is accessed into the charge circuit or described
The charge and discharge switch of discharge loop；
The charge circuit include be used for connect external power supply plug, be connected with the plug power switch, be arranged at
The charging for being used to the charging process of the capacitor bank is adjusted between the power switch and the capacitor bank is adjusted
Economize on electricity road；
The discharge loop, which includes be connected with the two ends of the capacitor bank two, to be used to be connected the to-be-welded pieces respectively
Terminal.
2. the accurate pulse welding machine of use for laboratory according to claim 1, it is characterised in that：The charge adjustment circuit bag
Include the state selecting switch being arranged between the power switch and the capacitor bank, discharge resistance, voltmeter；The voltage
Table is parallel to the capacitor bank two ends；
The state selecting switch can switch between pressure-increasning state, halted state and step-down state；
When the state selecting switch switches to the pressure-increasning state, the plug is selected through the power switch, the state
Select switch and charge and discharge switch and constitute loop with the capacitor bank；When the state selecting switch switches to the stopping
During state, the plug is disconnected with the capacitor bank；When the state selecting switch switches to the step-down state,
The capacitor bank is connected into loop with the discharge resistance.
3. the accurate pulse welding machine of use for laboratory according to claim 2, it is characterised in that：The charge circuit also includes
The capacitor bank two ends are connected to when the state selecting switch switches to pressure-increasning state and charging process is protected
Protection circuit.
4. the accurate pulse welding machine of use for laboratory according to claim 3, it is characterised in that：The protection circuit includes using
Make the relay of overvoltage protection, with the regulating resistor for starting to control voltage for adjusting the relay, the coil of the relay with
The regulating resistor is in series, and the contact of the relay is arranged between the state selecting switch and the capacitor bank.
5. the accurate pulse welding machine of use for laboratory according to claim 1, it is characterised in that：The charge circuit also includes
It is arranged between the power switch and the charge adjustment circuit and by the plug by exchanging that the external power supply is obtained
Electricity is converted to the rectification circuit of direct current.
6. the accurate pulse welding machine of use for laboratory according to claim 5, it is characterised in that：The rectification circuit is bridge-type
Rectification circuit.
7. the accurate pulse welding machine of use for laboratory according to claim 1, it is characterised in that：The plug is connected with to electricity
The indicator lamp that source state is indicated.
8. the accurate pulse welding machine of use for laboratory according to claim 7, it is characterised in that：The indicator lamp concatenation is limited
Leakage resistance.
9. the accurate pulse welding machine of use for laboratory according to claim 1, it is characterised in that：The charge and discharge switch is using double
Double-pole double throw switch.
10. the accurate pulse welding machine of use for laboratory according to claim 1, it is characterised in that：The capacitor bank includes
It is multiple and connect electric capacity, be connected with the electric capacity and adjust access electric capacity quantity multiple quantity selecting switch, with the electricity
Hold the multiple anti-events for being connected and being used for and prevent the quantity selecting switch from sticking together failure in adjustment access electric capacity quantity
Hinder resistance, the fail-safe resistance is corresponding with the quantity selecting switch and connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621294628.8U CN206316530U (en) | 2016-11-30 | 2016-11-30 | Use for laboratory precision pulse welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621294628.8U CN206316530U (en) | 2016-11-30 | 2016-11-30 | Use for laboratory precision pulse welding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206316530U true CN206316530U (en) | 2017-07-11 |
Family
ID=59265474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621294628.8U Expired - Fee Related CN206316530U (en) | 2016-11-30 | 2016-11-30 | Use for laboratory precision pulse welding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206316530U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114178654A (en) * | 2021-12-23 | 2022-03-15 | 中国核动力研究设计院 | Welding circuit and portable adjustable impulse welding machine |
-
2016
- 2016-11-30 CN CN201621294628.8U patent/CN206316530U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114178654A (en) * | 2021-12-23 | 2022-03-15 | 中国核动力研究设计院 | Welding circuit and portable adjustable impulse welding machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170711 |