CN201109140Y - Capacitor energy-accumulation nailing machine - Google Patents
Capacitor energy-accumulation nailing machine Download PDFInfo
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- CN201109140Y CN201109140Y CNU2007200155192U CN200720015519U CN201109140Y CN 201109140 Y CN201109140 Y CN 201109140Y CN U2007200155192 U CNU2007200155192 U CN U2007200155192U CN 200720015519 U CN200720015519 U CN 200720015519U CN 201109140 Y CN201109140 Y CN 201109140Y
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- 239000003990 capacitor Substances 0.000 title claims abstract description 20
- 238000009825 accumulation Methods 0.000 title 1
- 238000007599 discharging Methods 0.000 claims abstract description 53
- 238000004146 energy storage Methods 0.000 claims abstract description 31
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 12
- 239000010703 silicon Substances 0.000 claims abstract description 12
- 238000004088 simulation Methods 0.000 claims description 2
- 238000003860 storage Methods 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract description 6
- 230000001960 triggered effect Effects 0.000 abstract description 6
- 230000005611 electricity Effects 0.000 abstract description 5
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 23
- 230000008569 process Effects 0.000 description 20
- 238000004804 winding Methods 0.000 description 17
- 238000001514 detection method Methods 0.000 description 11
- 238000003466 welding Methods 0.000 description 9
- 230000001276 controlling effect Effects 0.000 description 6
- 230000004927 fusion Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 208000032365 Electromagnetic interference Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 241001442654 Percnon planissimum Species 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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Abstract
The utility model discloses a capacitance energy storage type nail beater. A charging branch circuit of the capacitance energy storage type nail beater comprises a charging component (25), a transformer (21), a rectifier bridge (23) and an energy storage capacitor (24), which are connected in series. A discharging branch circuit comprises the energy storage capacitance and a discharging controllable silicon (27). The charging branch circuit and the discharging branch circuit are connected with a charging and discharging controller (26) which is connected with a trigger switch (28). A plurality of output terminals of the charging and discharging controller scanned and output by a sequential pulse division terminal which is independently triggered by the trigger switch respectively control branch circuits such as the charging branch circuit, the discharging branch circuit, a triggering branch circuit, an overvoltage protection branch circuit, a charge indication branch circuit, etc., and therefore, the energy storage type nail beater realizes thorough and complete separation of strong and weak electricity. The capacitance energy storage type nail beater can practice and perfect protection avoiding the serious consequence brought by simultaneous carrying out of charging and discharging caused by interference, solves the disadvantage that precious electrical circuit elements such as the transformer, a charging controllable silicon, a relay, a circuit board, etc. are easy to be damaged, and also eliminates the potential safety hazard brought by insulation fault of the transformer and a lead wire.
Description
Technical Field
The utility model relates to an electric capacity energy storage formula fusion welding machine (nailer), more specifically say, relate to the control circuit who is used for controlling electric capacity energy storage formula nailer.
Background
At present, a nailing machine for shipbuilding which has been put into practical use is shown in fig. 1. The control circuit of the capacitor energy storage type nailing machine in the prior art is formed by electrically connecting a grounding detection 5, a charging silicon controlled rectifier 3, a rectifier bridge 2, a transformer 1, an energy storage capacitor 7 and a discharging silicon controlled rectifier 8 in sequence. The nailing machine detects whether the gun head 0 is lifted or falls by the bonding detection 5, so that charging and discharging are controlled, namely, charging is carried out when the gun head is lifted, discharging is carried out when the gun head is fallen, and the gun head 9 is directly and manually triggered. There is no strict time sequence restriction between manual triggering, charging and earth detection, and the same transformer, charging control point, at multiple windings is on the secondary of the transformer.
In brief, according to the characteristics of the prior art, in the process of the sequential control of discharge triggering, silicon controlled discharge and energy storage capacitor charging and the processing of a charge and discharge triggering signal, the 'grounding detection type' triggering and charge and discharge are 'random parallel and have no time sequence work'. Most importantly and more seriously, the earth detection charging and discharging technology adopted by the products is simple one-time delay control, namely, the gun head is lifted, the earth detection 5 delays for about 1 second for charging, and an earth detection control line of the gun head 0, an energy storage capacitor 7 and a high-current discharging line of a discharging silicon controlled rectifier 8 are a pair of multiplexing lines (shown in figure 1), so that the phenomena of simultaneous charging and discharging and mixed charging are often caused by interference. Because the circuit belongs to the analog trigger control and has no intelligent protection control function, the circuit is complex and the circuit board is mixed with strong and weak current, thereby causing the nailing machine in the prior art to be easily damaged.
In addition, in a shipbuilding site, the primary 220V working voltage is taken from a 3-phase 4-wire power supply, for example, heavy loads of a large-tonnage crane and a large-capacity welder are large, the fluctuation interference of the power supply is larger, the voltage value is quite unstable, the actually measured sampling value of a 220V alternating current power supply is often between 230 and 270V, because the working winding and the control winding 1 and 2 of the transformer 1 are all set on the same transformer 11, the voltage values are greatly increased along with the synchronization of a power grid, the 14V for the relay is often up to 22V, the heating of the coil of the relay is very serious, so that the contact of the relay is blocked due to the deformation of the shell, the work relay is often badly attracted due to various interference and clicking sounds, the adjustment knob is operated each time, the relay is also ' papa ' sound ' for a half day, and the fluctuation of the power supply of a control panel generated by the attraction of the relay is also large, the interference causes the fatigue, the contact point of the contact has been tested to reach the vibration frequency of 16HZ, and the reliability is very low; in practical use, due to the product manufactured by the technology, a secondary working winding and a plurality of control windings 1 and 2 of a transformer 11 which are important parts for supplying energy are all arranged in the same transformer, a charging control point is arranged at the secondary end, the primary side of the transformer 1 is always in the electrified state of power grid overvoltage, in addition, the misoperation of simultaneous charging and discharging and the error connection of a working power supply are frequently caused, the working condition on a ship is severe, the task is very tight frequently, the comprehensive factors enable the transformer to be rapidly burnt and damaged without exception after being used for a period of time, the damage is characterized in that insulating paint falls off, and other parts are burnt.
In fact, due to the capacitance characteristics, the charging and discharging current changes greatly during the operation of the machine, which can reach dozens of (charging) amperes or even hundreds of (discharging) amperes, and the gun head bouncing is very violent during the nailing operation, and a series of violent electromagnetic interferences and contact failures occur, and when such interferences occur, just when the time-delay charging circuit of the machine is about to start, the electromagnetic interferences caused by various factors often cause the malfunction of the machine, namely the malfunction of the relay causes the charging and discharging to be carried out simultaneously, at the same time, the power supply is equivalent to a very serious short-circuit state, so that the transformer 11, the rectifier bridge 12, the current-limiting resistor R1, the charging thyristor 3 and the like are seriously overloaded, and the excessive current causes the insulation of the transformer 11 and the quick damage and even burning of various large-current connecting wires and the like, and in turn, a more serious short circuit is formed, even if 170V voltage is fed to the control board, the series of feedback processes are often formed in a short time, so that the transformer 11, the charging thyristor 3, the grounding detection 5, the rectifier bridge 12 and other important elements are burnt out quickly. Moreover, if the 220V power line is misunderstood to 380V (which often happens) when the power line is connected (the work needs to be repeated one or more times every day), the damage process is fast and heavy, let alone; the insulation damage of the transformer 11 is not only reflected in the insulation paper, but also most of the enameled wire insulating paint is flushed and has no existence, which inevitably causes the body to have strong electricity, seriously endangers the personal safety and the situation, and is not suitable for the ship body in the flammable and explosive situation.
Disclosure of Invention
To the above problem, the utility model provides a control circuit of electric capacity energy storage formula fusion welding machine/nailer of chronogenesis pulse control utensil overvoltage protection function to there is the problem of strong and weak electricity muddy electricity phenomenon fragile organism in this type of nailer of solution prior art, and thereby solved the transformer easily damage, transformer insulation easily suffer to destroy and endanger the personal safety and cause the problem of production accident.
In order to solve the problem, the utility model provides a pair of electric capacity energy storage formula nailer, including the branch road that charges, the branch road that discharges. The charging branch comprises a charging component, a transformer, a rectifier bridge and an energy storage capacitor which are sequentially connected in series; the discharge branch circuit comprises an energy storage capacitor and a discharge controllable silicon. The charging branch and the discharging branch are connected with a charging and discharging controller to receive charging and discharging control signals from the two pins; and the charge and discharge controller is connected with the trigger switch and receives the trigger signal.
The utility model discloses a capacitance energy storage formula nailer, its further improvement lies in, for charge and discharge controller independent setting power input, for example through independent transformer realization power input. The circuit is also provided with an overvoltage protection circuit and a charging indication control circuit which are respectively connected with a charging and discharging controller to realize work.
In the capacitor energy storage type nailing machine, the charge and discharge controller can be realized by a general digital integrated circuit, or can be formed by a singlechip, a GAL programmable device or a general circuit simulation. The selected circuit or single chip microcomputer and logic device are solidified with a serial time sequence pulse control program.
The utility model discloses energy storage formula nailer, by the time sequence pulse branch terminal scan output in order of trigger switch independent trigger charge-discharge control ware, remove "serial in order" control trigger, discharge, charge and instruct whole process, the charge-discharge control ware storage has anti-interference and the required procedure of welding process and possesses control power supply overvoltage and voltage misconnection protect function. The charge and discharge controller is independently triggered by the trigger switch to output a string of 'specific serial time sequence control pulses' to continuously control the charge and discharge cycle process of one period and is embodied in a parallel shift multi-terminal output mode, and the triggering mode is irrelevant to whether the gun head is grounded or not.
Through the technical scheme, the utility model discloses energy storage formula nailer is with current product at control circuit and charging device type and transformer isotructure, the tie point that charges, anti-interference form, charge and discharge control mode, power misconnection overvoltage protection isoelectronic circuit completely different control technology, its strict time sequence pulse that adopts divides the terminal scan output's technique to realize the control of charge and discharge in order to thoroughly solve current product fragile, the reliability is low, the security is poor, and the shortcoming of cost very high.
Because of adopting the above-mentioned scheme, change "parallel random control" into "serial sequential control", do not use the technology that the detection rifle body that the existing product adopts is whether to be grounded and control the charging and discharging, and adopt the transformer work winding, control winding separate to set up into two transformers, the charging control point does not set up in the conventional secondary rectification position, and set up in the alternating current power supply input terminal of the nailing machine work winding transformer alone, and the technological method such as the working way of the particular "time base reference working point" sequential scanning charging and discharging controller, make the invention realize the strong and weak electricity is separated completely; therefore, the working voltage of the working winding transformer can be monitored, perfect protection can be implemented, serious consequences caused by simultaneous charging and discharging due to interference can be avoided, the working points of all the processes can not be positioned on the same time level through time-sharing output, and charging and discharging can not occur simultaneously, so that the defects that precious circuit elements such as transformers, charging thyristors and circuit boards of the existing products are easy to damage and the reliability of relays is low are fundamentally overcome, potential safety hazards such as personal and fire risks caused by poor insulation of the transformers and wires are eliminated, the fusion welding process is more flexible and convenient to adjust, the reliability and the safety are greatly enhanced, all the measures are comprehensively utilized, and the purpose of the invention is achieved.
Drawings
The invention will be further explained with reference to the drawings and with reference to specific embodiments
FIG. 1 is a schematic diagram of a control circuit of a prior art capacitive energy storage nailer;
FIG. 2 is a schematic diagram of a control circuit of the capacitor energy storage nailing machine according to the present invention.
Detailed Description
In fig. 2, the charge/discharge controller 26 has a plurality of output terminals, and main terminals PA, PB, and PC … among them are connected to and sequentially controlled by the branches.
In order to achieve the purpose of being controlled by time sequence pulse and reliably working: the circuit is specifically designed as follows:
the charging component 25, the transformer 21, the rectifier bridge 23 and the energy storage capacitor 24 form a charging branch A; the discharging controllable silicon 27 and the energy storage capacitor 24 are a discharging branch circuit B, and the trigger switch 28 cooperates with the charging and discharging controller 26 to form a control branch circuit C.
1. Selecting a transformer: the working winding and the control winding of the invention are divided into two transformers 21 and 22, and because the circuit efficiency is high and the respective power is small, the control transformer only needs 5W single 9V winding, and only 5V is supplied for the control panel to work through voltage stabilization, and the circuit is very simple and reliable. The power supply of the charge and discharge controller 26 can be realized by directly using a 5V power supply according to the requirement.
2. Connection point of capacitor charging:
the energy storage capacitor 24 of the invention is directly connected with the output end of the rectifier bridge 23, and has the advantages of high efficiency, small output voltage drop, accordance with the calculated value, quick charging and little pollution to the power supply
3. Connection point for controlling charging:
the charging unit 25 of the present invention may be a charging thyristor module of the prior art, but such a charging thyristor module is expensive. Therefore, the charging component can adopt a novel electronic device and is connected to the primary side of the working power supply, namely the primary side of the transformer 21, namely the input terminal of the alternating current power supply, so that the problem of solving is that the real-time protection can be carried out on the transformer and the whole valuable electrical appliance element, the working power supply such as the transformer can be thoroughly cut off, the main circuit is completely in a power-off state at ordinary times, the reliability and the safety are improved, the heat generation is greatly reduced, and the service life of the element is prolonged.
4. And (3) triggering discharge:
in the invention, the trigger switch 28 independently triggers the charge and discharge controller 26, the charge and discharge controller 26 triggers the discharge controllable silicon 27 after intelligent processing, and only weak trigger signals flow through the trigger line.
5. The charging and discharging control circuit adopts a continuous serial sequential control mode:
during charging and discharging, the circuit intelligently detects the relative position of a trigger switch 28 signal, the triggering is irrelevant to whether grounding is carried out, and simultaneously, according to the circuit state and the welding process requirement, a series of serial time sequence control time sequence pulses are sent out in a time-sharing sequence by a plurality of pins PA, PB and PC … (PG and the like are not marked) of the charging and discharging controller 26 by taking a certain time base pulse as a reference after treatment so as to respectively control the triggering, discharging, charging, indicating, stopping and other control processes according to the time sequence.
In other words: the overall control process of such a working cycle is included in the "serial time sequence control pulse" triggered independently by the trigger switch 28, and is not related to the grounding detection rise and fall of the gun head, and the charge and discharge controller 26 is embodied in the form of "serial pulse" parallel shift output.
Moreover, the scheme is very easy to add various detection and protection circuits, the hardware cost is low, in most cases, the circuit and welding process parameter can be changed only by changing a program, the cost is very low, and the circuit design is flexible; the specific control working process is not obvious.
6. The protection circuit is set up:
the charging and discharging controller 26 and the main control overvoltage protection element of the invention are supplied with power by a control transformer of about 5-10W independently, and are supplied with power separately from a fusion welding load by using a working winding transformer 21, the overvoltage and power source misconnection 380V are realized by the charging and discharging controller 26 in cooperation with software, and important vulnerable parts are designed according to 380V power source indexes, thereby fundamentally avoiding the occurrence of the runaway phenomenon.
The invention selects a charge-discharge controller 26 which is independently triggered by a trigger switch 28 and outputs time sequence pulses in a terminal scanning mode, thereby controlling the whole processes of charging, discharging, indicating and the like. The charge and discharge controller 26 has a plurality of output terminals, wherein the main terminals are respectively controlled by the following three branches by adopting time sequence pulses: the charging terminal PC controls a novel electronic component, namely a charging component 25, through a charging and discharging controller 26 to control a charging branch A, and a charging control point is taken from a primary power supply 220V of a step-down transformer 21, namely a nailing machine working power supply terminal, instead of a conventional rectifying end, namely a transformer secondary, and a phase-shifting voltage regulating mode of charging without using a relay and using a silicon controlled rectifier or controlling the same secondary is adopted. The working winding stepped down by the transformer 21 and the control winding transformer 22 for the circuit board to work are also two transformers which are separately arranged, and the charge and discharge controller 26 is provided with voltage misconnection 380V and overvoltage protection, and the primary purpose of doing so is: when the circuit needs to be cut off or the protection circuit works, the large-load power supply of the 220V working winding can be quickly and completely cut off, the purposes of really protecting valuable elements and safety are achieved, the control and protection circuit can reliably work, and the charging speed is high, the efficiency is high, and the pollution to the power supply is small.
The discharging control is accomplished by triggering the charging and discharging controller 26 by the trigger switch 28, and controlling the discharging thyristor by the charging and discharging controller 26 through the terminal PB after a series of fusion welding processes and anti-interference processes.
The charge-discharge controller 26 is characterized in that it works in a series of time sequence pulse sub-terminal scanning output mode and continuously controls the whole working process of charging, discharging, indicating, etc., it stores welding process parameters and provides a program for avoiding burning of expensive electronic components caused by simultaneous charging and discharging, and avoids the interference caused by the severe voltage fluctuation of the working site and includes all protection functions of the voltage-reducing working winding transformer and control circuit, etc., while the rest 1 to 6 terminals PC-PH of the charge-discharge controller 26 can also be used for controlling or partially leaving empty of charging indication, protection, etc., and the PA terminal is overvoltage, power source misconnection protection.
In addition, the charge and discharge controller 26 may be implemented by a single chip microcomputer or a GAL programmable device, or may be implemented by a general digital integrated circuit or a general circuit analog. Wherein, a serial time sequence pulse control program is solidified in the singlechip or the GAL programmable device. Therefore, the charge and discharge controller 26 is triggered by the trigger switch 28 to output a series of "specific serial timing control pulses" to control the above-mentioned one continuous charge and discharge duty cycle process and is embodied in the form of parallel shift output.
The 'time base reference working point' of the charge and discharge controller 26 for generating the time sequence control pulse in a 'digital' mode can be taken from an alternating current power supply or a time base oscillation circuit, and is not related to a relatively stable frequency factor only by taking the voltage of 220V of the power supply or the voltage value of a secondary as a reference in the prior art, and the drift phenomenon of the 'voltage reference working point' of a general 'analog' control circuit is avoided because the drift phenomenon of the 'voltage reference working point' is not related to the field power grid voltage with violent change, so that the misoperation caused by unstable voltage caused by huge change of current in the prior art is thoroughly solved.
In summary, the following is a clear difference from the prior art: in the process of processing the control signal of discharging triggering, silicon controlled discharging and energy storage capacitor charging, the triggering and the charging and the discharging of the invention are strictly continuous serial sequential work.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (6)
1. A capacitor energy storage type nailing machine comprises a charging branch circuit and a discharging branch circuit, and is characterized in that,
the charging branch comprises a charging component (25), a transformer (21), a rectifier bridge (23) and an energy storage capacitor (24) which are sequentially connected in series;
the discharging branch circuit comprises the energy storage capacitor (24) and a discharging controllable silicon (27); wherein,
the charging branch and the discharging branch are connected with two pins of a charging and discharging controller (26) to receive charging and discharging control signals; the charging and discharging controller (26) is connected with the trigger switch (28) to receive the trigger signal.
2. A capacitive power nailer as claimed in claim 1, characterised in that said charge and discharge controller (26) is provided with an independent power input.
3. A capacitor-accumulating nailer according to claim 2 characterised in that a transformer (22) is provided to effect said power input.
4. A capacitor-accumulating nailer according to claim 2 wherein said charge and discharge controller (26) is connected to an overvoltage protection circuit via pins.
5. A capacitive energy storage nailer according to claim 4 characterised in that said charge and discharge controller (26) is connected to the charge indication control circuit by pins.
6. A capacitor storage type nailing machine as claimed in any one of claims 1-5, wherein the charge and discharge controller (26) is selected from a general purpose digital Integrated Circuit (IC) or a single chip microcomputer or a GAL programmable device which is solidified with a serial time sequence pulse control program, or is formed by a general purpose circuit simulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200155192U CN201109140Y (en) | 2007-10-24 | 2007-10-24 | Capacitor energy-accumulation nailing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200155192U CN201109140Y (en) | 2007-10-24 | 2007-10-24 | Capacitor energy-accumulation nailing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201109140Y true CN201109140Y (en) | 2008-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200155192U Expired - Fee Related CN201109140Y (en) | 2007-10-24 | 2007-10-24 | Capacitor energy-accumulation nailing machine |
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| Country | Link |
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| CN (1) | CN201109140Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105057868A (en) * | 2015-08-10 | 2015-11-18 | 江门市保值久机电有限公司 | Handheld active control type spot welder for planting nails |
| CN105618921A (en) * | 2016-01-21 | 2016-06-01 | 陕西理工学院 | Miniature capacitive energy storage welding circuit |
-
2007
- 2007-10-24 CN CNU2007200155192U patent/CN201109140Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105057868A (en) * | 2015-08-10 | 2015-11-18 | 江门市保值久机电有限公司 | Handheld active control type spot welder for planting nails |
| CN105057868B (en) * | 2015-08-10 | 2017-10-10 | 江门市保值久机电有限公司 | A kind of hand-held active control type plants nail mash welder |
| CN105618921A (en) * | 2016-01-21 | 2016-06-01 | 陕西理工学院 | Miniature capacitive energy storage welding circuit |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080903 Termination date: 20101024 |