CN111001915A - Energy storage spot welder device - Google Patents
Energy storage spot welder device Download PDFInfo
- Publication number
- CN111001915A CN111001915A CN201911092610.8A CN201911092610A CN111001915A CN 111001915 A CN111001915 A CN 111001915A CN 201911092610 A CN201911092610 A CN 201911092610A CN 111001915 A CN111001915 A CN 111001915A
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- Prior art keywords
- energy storage
- module
- diode
- voltage
- silicon controlled
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Classifications
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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
-
- 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
- B23K11/26—Storage discharge welding
-
- 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
- B23K11/36—Auxiliary equipment
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Generation Of Surge Voltage And Current (AREA)
Abstract
An energy storage spot welding machine device comprises a power supply module, an energy storage module, a welding module, a driving module and a control module. The control module outputs a charging control signal to the energy storage module to control the energy storage module to execute charging operation according to the working voltage provided by the power supply module. The control module can also output a discharge control signal to the energy storage module to control the energy storage module to perform a discharge operation and output a discharge voltage to the welding module. The driving module is used for driving the welding module to move from the initial position to the designated position. The energy storage module comprises at least one capacitor bank. At least one capacitor bank is a metallized polypropylene aluminum film capacitor.
Description
Technical Field
The invention relates to an energy storage spot welding machine device.
Background
The energy storage spot welding machine stores energy by using a capacitor, and when the capacitor is instantaneously discharged through a welding electrode, the current between the welding electrodes can melt a small-area welding spot, so that welding is realized. The energy storage spot welder can weld metal elements of different materials, such as soft iron, copper, aluminum, alloy and other metals. Among them, the electrolytic capacitor is widely used in an energy storage spot welding machine because of its large capacity and low price. Wherein the electrolytic capacitor receives an alternating voltage of a certain frequency supplied from a voltage source to switch between a charging operation and a discharging operation. The electrolytic capacitor stores the ac voltage during charging, and outputs the stored voltage as a dc voltage during discharging. When the voltage source is a high-frequency alternating voltage, the current generated at the welding position of the electrolytic capacitor is unstable, and a surge is easily generated.
Disclosure of Invention
In view of the above, it is desirable to provide an energy storage spot welding machine apparatus capable of improving the current stability of the welding position.
An energy storage spot welding machine device comprises a power supply module, an energy storage module, a welding module, a driving module and a control module. The control module outputs a charging control signal to the energy storage module to control the energy storage module to execute charging operation according to the working voltage provided by the power supply module. The control module can also output a discharge control signal to the energy storage module to control the energy storage module to perform a discharge operation and output a discharge voltage to the welding module. The driving module is used for driving the welding module to move from the initial position to the designated position. The energy storage module comprises at least one capacitor bank. At least one capacitor bank is a metallized polypropylene aluminum film capacitor.
Above-mentioned energy storage spot welding machine through adopting metallization polypropylene aluminium membrane electric capacity, can improve the stability of welding department current, has guaranteed the welding effect.
Drawings
Fig. 1 is a block diagram of an energy storage spot welder apparatus according to a preferred embodiment of the present invention.
Fig. 2 is a circuit diagram of the energy storage spot welding apparatus of fig. 1.
Description of the main elements
Energy storage spot welder device 1
Rectifying and filtering unit 21
Switch unit 25
First welding electrode 31
First thyristor diode SCR5
Second thyristor diode SCR6
First diode D3
Second diode D4
A first output terminal A
Second output terminal B
Thyristor guard plate 210
First capacitor bank C1
Second capacitor bank C2
Voltage dividing resistor R2
Relay RLY1
The following detailed description will further illustrate the invention in conjunction with the above-described figures.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the term "connected" is to be interpreted broadly, e.g. as a fixed connection, a detachable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; they may be connected directly or indirectly through intervening elements, or may be connected through inter-element communication or may be in the interaction of two elements. To those of ordinary skill in the art, the above terms may be immediately defined in the present invention according to their specific meanings.
The terms "first," "second," and "third," etc. in the description and claims of the present invention and the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "comprises" and any variations thereof, are intended to cover non-exclusive inclusions.
The following describes a specific embodiment of the energy storage spot welding machine according to the present invention with reference to the drawings.
Please refer to fig. 1, which is a block diagram of an energy storage spot welding machine 1 according to an embodiment of the present invention. The energy storage spot welding machine device 1 is used for storing input alternating voltage on an energy storage element and generating high-voltage arc at a welding electrode according to the discharge voltage of the energy storage element so as to realize welding.
The energy storage spot welder device 1 comprises a power module 10, an energy storage module 20, a welding module 30, a driving module 40, a control module 50 and a touch display module 60. The control module 50 is configured to output a charging control signal to the energy storage module 20 to control the energy storage module 20 to perform a charging operation according to the voltage provided by the power module 10, and further output a discharging control signal to the energy storage module 20 to perform a discharging operation to provide a discharging voltage to the welding module 30. The control module 50 is further configured to detect the discharge voltage output by the energy storage module 20, and output different control signals to the driving module 40 according to the detection result, so as to drive the first welding electrode 31 (see fig. 2) and the second welding electrode 32 (see fig. 2) in the welding module 30 to move, and adjust the discharge voltage.
The power module 10 is used to provide an operating voltage in a predetermined voltage range. The power module 10 has a first input terminal 10A and a second input terminal 10B. In the present embodiment, the power module 10 is a single-phase ac voltage source. The predetermined voltage range is 200 volts (V) -1000V. In other embodiments, the predetermined voltage range may be adjusted according to actual grid power supply conditions, but is not limited thereto.
Referring to fig. 2, the energy storage module 20 is configured to perform charging according to the working voltage, perform discharging according to a first control signal of the control module 50, and output a discharging voltage to the welding module 30. The energy storage module 20 includes a rectifying and filtering unit 21, an energy storage unit 23, a switching unit 25, and an output control unit 27.
The rectifying and filtering unit 21 is electrically connected between the power module 10 and the energy storage unit 23. The rectifying and filtering unit 21 is configured to rectify and filter the operating voltage and output a charging voltage. Wherein, the charging voltage can be 200V-1000V. The rectifying and filtering unit 21 has a first output terminal a and a second output terminal B. The first output end A is a high level output end, and the second output end B is a low level output end. In this embodiment, the first output terminal a is used for outputting the charging voltage, for example, 800V; the second output terminal B is used for outputting a ground voltage, for example, 0V. In the present embodiment, the rectifying and smoothing unit 21 is a rectifying bridge structure formed by four diodes connected end to end. The rectifying and filtering unit 21 includes a first thyristor diode SCR5, a second thyristor diode SCR6, a first diode D3, a second diode D4, and two thyristor protection plates 210. The first silicon controlled diode SCR5, the second silicon controlled diode SCR6, the first diode D3, and the second diode D4 constitute a rectifier bridge. An anode of the first SCR5 is electrically connected to the first input terminal 10A, and a cathode of the first SCR5 is electrically connected to the energy storage unit 23 through the first output terminal a. The cathode of the first diode D3 is electrically connected to the anode of the first SCR5, and the anode of the first diode D3 is electrically connected to the energy storage unit 23 through the second output terminal B. The anode of the second SCR6 is electrically connected to the second input terminal 10B, and the cathode of the second SCR6 is electrically connected to the energy storage unit 23 through the first output terminal a. The cathode of the second diode D4 is electrically connected to the anode of the second SCR6, and the anode of the second diode D4 is electrically connected to the anode of the first diode D3 through the second output terminal B. The two thyristor protection boards 210 are respectively connected in parallel to two ends of the first thyristor diode SCR5 and the second thyristor diode SCR 6. The thyristor protection plate 210 is used to prevent the first thyristor diode SCR5 and the second thyristor diode SCR6 from being broken down by a large current.
The energy storage unit 23 is configured to be charged according to the working voltage, and is capable of discharging under the control of the control module 50 and outputting a first voltage to the switching unit 25. The energy storage unit 23 is electrically connected between the rectifying and filtering unit 21 and the switching unit 25. The energy storage unit 23 comprises at least one capacitor bank. In this embodiment, the energy storage unit 23 includes a first capacitor bank C1, a second capacitor bank C2, a relay RLY1, and a voltage dividing resistor R2 connected in parallel. The voltage dividing resistor R2 and the relay RLY1 are connected in series between the first output terminal A and the second output terminal B. The first capacitor bank C1 is connected in parallel to two ends of the relay RLY 1. Two ends of the second capacitor C2 are electrically connected to the first output terminal a and the second output terminal B, respectively. When the relay RLY1 is turned on, the first capacitor bank C1 stops storing voltage, and the second capacitor bank C2 is charged according to the operating voltage; when the relay RLY1 is turned off, the first capacitor bank C1 and the second capacitor bank C2 are charged according to the operating voltage at the same time. In this embodiment, the first capacitor bank C1 and the second capacitor bank C2 may be formed of a plurality of thin film capacitors. The film capacitor is a metallized polypropylene aluminum film capacitor. In this embodiment, the metallized polypropylene aluminum film capacitor may be a single-sided metallized polypropylene aluminum film capacitor or a double-sided metallized polypropylene aluminum film capacitor.
The switch unit 25 is electrically connected between the energy storage unit 23 and the output control unit 27. The switch unit 25 is configured to establish an electrical connection between the energy storage unit 23 and the output control unit 27 according to the discharge control signal, and disconnect the electrical connection between the energy storage unit 23 and the output control unit 27 according to the charge control signal.
The output control unit 27 is configured to step down the first voltage and output a discharge voltage to the welding module 30.
The welding module 30 comprises a first welding electrode 31 and a second welding electrode 32.
The driving module 40 is configured to drive the first welding electrode 31 and the second welding electrode 32 to move from an initial position to a designated position to contact with a material to be welded according to a first driving signal output by the control module 50.
The control module 50 is further configured to detect the discharge voltage received by the welding module 30, and compare the detected discharge voltage with a predetermined voltage. When the discharge voltage is greater than or equal to the predetermined voltage, the control module 50 outputs a first control signal to the driving module 40 to drive the first welding electrode 31 and the second welding electrode 32 to move from the initial position to the designated position. When the discharge voltage is less than the predetermined voltage, the control module 50 outputs a second control signal to the driving module 40 to drive the first welding electrode 31 and the second welding electrode 32 to return to the initial positions and adjust the discharge voltage.
The touch display module 60 is electrically connected to the control module 50. The touch display module 60 is used for inputting welding parameters according to a touch operation of a user. Wherein the welding parameter comprises the predetermined voltage.
The energy storage spot welder device 1 further comprises a protection module 70. The protection module 70 is used for generating a warning when the working voltage output by the power module 10 is too high or fluctuates too much. In this embodiment, the warning is an alarm indicator.
Above-mentioned have energy storage spot welding machine 1, through adopting metallization polypropylene aluminium membrane electric capacity, can improve the stability of welding department current, guaranteed the welding effect.
It will be appreciated by those skilled in the art that the above embodiments are illustrative only and not intended to be limiting, and that suitable modifications and variations may be made to the above embodiments without departing from the true spirit and scope of the invention.
Claims (10)
1. An energy storage spot welding machine device comprises a power supply module, an energy storage module, a welding module, a driving module and a control module; the control module outputs a charging control signal to the energy storage module so as to control the energy storage module to execute charging operation according to the working voltage provided by the power supply module; the control module can also output a discharge control signal to the energy storage module so as to control the energy storage module to execute discharge operation and output discharge voltage to the welding module; the driving module is used for driving the welding module to move from an initial position to a specified position; the method is characterized in that: the energy storage module comprises at least one capacitor bank; and at least one capacitor bank is a metallized polypropylene aluminum film capacitor.
2. The energy storage spot welding machine of claim 1, wherein: the energy storage module comprises a rectifying and filtering unit and an energy storage unit; the rectification filtering unit is connected between the power module and the energy storage unit and is used for rectifying and filtering the working voltage and outputting charging voltage to the energy storage unit.
3. The energy storage spot welding machine of claim 2, wherein: the rectification filtering unit comprises a first output end and a second output end; the energy storage unit further comprises a first capacitor bank, a second capacitor bank, a divider resistor and a relay; the voltage dividing resistor and the relay are connected in series between the first output end and the second output end; two ends of the first capacitor bank are connected to two ends of the relay in parallel; and two ends of the second capacitor bank are electrically connected with the first output end and the second output end respectively.
4. The energy storage spot welding machine of claim 3, wherein: when the relay is switched on, the first capacitor bank stops storing voltage, and the second capacitor bank is charged according to the working voltage; and when the relay is switched off, the first capacitor bank and the second capacitor bank are charged simultaneously according to the working voltage.
5. The energy storage spot welding machine of claim 3, wherein: the power supply module comprises a first input end and a second input end; the rectification filter unit comprises a first silicon controlled diode, a second silicon controlled diode, a first diode and a second diode; the first silicon controlled diode, the second silicon controlled diode, the first diode and the second diode form a rectifier bridge; the anode of the first silicon controlled diode is electrically connected with the first input end, and the cathode of the first silicon controlled diode is electrically connected with the energy storage unit through the first output end; the cathode of the first diode is electrically connected with the anode of the first silicon controlled diode, and the anode of the first diode is electrically connected with the energy storage unit through the second output end; the anode of the second silicon controlled diode is in electrical connection with the second input end, and the cathode of the second silicon controlled diode is in electrical connection with the first output end; the cathode of the second diode is electrically connected with the anode of the second silicon controlled diode, and the anode of the second diode is electrically connected with the anode of the first diode through a second output end.
6. The energy storage spot welding machine of claim 5, wherein: the rectification filtering unit comprises two silicon controlled protection plates; one of the two silicon controlled rectifier protection plates is connected to two ends of the first silicon controlled rectifier diode in parallel, and the other silicon controlled rectifier protection plate is connected to two ends of the second silicon controlled rectifier diode in parallel; the silicon controlled protection board is used for preventing the first silicon controlled diode and the second silicon controlled diode from being broken down by large current.
7. The energy storage spot welding machine of claim 2, wherein: the energy storage module further comprises a switch unit and an output control unit; the switch unit is electrically connected with the energy storage unit and the output control unit; the switch unit is used for establishing the electrical connection between the energy storage unit and the output control unit according to a discharge control signal of the control module so as to execute the discharge operation, and disconnecting the electrical connection between the energy storage unit and the output control unit according to the discharge control signal; when the discharging operation is performed, the energy storage unit outputs a first voltage, and the output control unit is used for converting the first voltage into the discharging voltage.
8. The energy storage spot welding machine of claim 1, wherein: the energy storage spot welder device further comprises a touch display module; the control module is also used for detecting the discharge voltage and comparing the discharge voltage with a preset voltage; the touch display module is electrically connected with the control module; the touch display module can be used for setting the preset voltage according to the touch operation of a user; when the discharge voltage is greater than or equal to the preset voltage, the control module outputs a first control signal to the driving module so as to control the welding module to move from the initial position to the specified position; and when the discharge voltage is smaller than the preset voltage, the control module outputs a second control signal to the driving module so as to control the welding module to return to the initial position and adjust the discharge voltage.
9. The energy storage spot welding machine of claim 1, wherein: the energy storage spot welder device further comprises a protection module; the protection module is used for detecting the working voltage and generating warning when the working voltage is too large in fluctuation.
10. The energy storage spot welding machine of claim 9, wherein: the warning is an alarm indicator light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911092610.8A CN111001915A (en) | 2019-11-11 | 2019-11-11 | Energy storage spot welder device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911092610.8A CN111001915A (en) | 2019-11-11 | 2019-11-11 | Energy storage spot welder device |
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| Publication Number | Publication Date |
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| CN111001915A true CN111001915A (en) | 2020-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911092610.8A Pending CN111001915A (en) | 2019-11-11 | 2019-11-11 | Energy storage spot welder device |
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| CN (1) | CN111001915A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7483255B2 (en) | 2020-08-19 | 2024-05-15 | ナグシステム株式会社 | Energy storage welding machine |
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| CN202025649U (en) * | 2011-04-06 | 2011-11-02 | 铜陵市文峰电子有限责任公司 | Novel environment-friendly and efficient high-pressure traction energy-storage capacitor |
| CN107442895A (en) * | 2016-05-30 | 2017-12-08 | 上海沪工焊接集团股份有限公司 | Welding machine control circuit |
| CN207282318U (en) * | 2017-07-10 | 2018-04-27 | 深圳市胜利新能电力电子有限公司 | A kind of special anxious charge and discharge capacitance device of percussion welder |
| CN108878219A (en) * | 2018-07-04 | 2018-11-23 | 珠海瑞景电子科技有限公司 | A kind of control circuit based on starting relay |
| CN208190330U (en) * | 2018-04-19 | 2018-12-04 | 王龙 | Accumulator and shot simulator |
| CN110014213A (en) * | 2019-05-07 | 2019-07-16 | 广州亨龙智能装备股份有限公司 | The primary charging multiple discharge control mode of condenser discharge resistance welder |
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2019
- 2019-11-11 CN CN201911092610.8A patent/CN111001915A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1817545A (en) * | 2006-03-22 | 2006-08-16 | 深圳市骏腾发焊接设备有限公司 | Controller of capacitor energy storing apparatus and its control |
| JP2011212699A (en) * | 2010-03-31 | 2011-10-27 | Origin Electric Co Ltd | Capacitor type resistance welding machine |
| CN202025649U (en) * | 2011-04-06 | 2011-11-02 | 铜陵市文峰电子有限责任公司 | Novel environment-friendly and efficient high-pressure traction energy-storage capacitor |
| CN107442895A (en) * | 2016-05-30 | 2017-12-08 | 上海沪工焊接集团股份有限公司 | Welding machine control circuit |
| CN207282318U (en) * | 2017-07-10 | 2018-04-27 | 深圳市胜利新能电力电子有限公司 | A kind of special anxious charge and discharge capacitance device of percussion welder |
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| CN108878219A (en) * | 2018-07-04 | 2018-11-23 | 珠海瑞景电子科技有限公司 | A kind of control circuit based on starting relay |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7483255B2 (en) | 2020-08-19 | 2024-05-15 | ナグシステム株式会社 | Energy storage welding machine |
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Application publication date: 20200414 |