CN104129075A - Constant-heat electric fusion welding machine - Google Patents
Constant-heat electric fusion welding machine Download PDFInfo
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- CN104129075A CN104129075A CN201410332967.XA CN201410332967A CN104129075A CN 104129075 A CN104129075 A CN 104129075A CN 201410332967 A CN201410332967 A CN 201410332967A CN 104129075 A CN104129075 A CN 104129075A
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Abstract
The invention discloses a constant-heat electric fusion welding machine. The constant-heat electric fusion welding machine comprises a transformer, a relay, a one-chip microcomputer, an active power detecting unit, a display unit and a button, the periphery of the one-chip microcomputer is respectively connected with the relay, the display unit, the button and the active power detection unit, the transformer is connected with the relay, and the relay, the active the power detection unit and an electric welding head are connected in sequence. The one-chip microcomputer and the active power detection unit are designed in the invention, the active power output by the welding machine is detected, is converted by the one-chip microcomputer to form a heat unit, the obtained heat is compared with a preset heat calibration value with heat received by a welded fitting as a target parameter, and welding is stopped if the output heat is equal to the calibration value. The welding time is automatically adjusted by the concrete heat output by the welding machine, so the running of the welding machine in a wide voltage range of 100-450V is guaranteed, and is not influenced by the change of instant voltage; and the output heat is constant, so the welding quality is guaranteed, and the welding efficiency is increased.
Description
Technical field
The present invention relates to electric welding equipment, specifically a kind of permanent heat electro-fusion welding machine.
Background technology
Electro-fusion welding machine is again electrothermal fusion welding machine, is to Electric thermal smelting belt energising, to make the embedded electrothermal wire heating of Electric thermal smelting belt, and heat energy is tubing, pipe fitting surface melting, after cooling curing plastic pipe welding a kind of machine together.Current domestic electro-fusion welding machine is divided into " constant-pressure type " and " constant-current type " two kinds.The electro-fusion welding machine of constant-pressure type refers to a constant voltage of welding machine output, and can set voluntarily weld interval, after the time arrives, stops heating.The electro-fusion welding machine of constant-current type refers to a constant electric current of welding machine output, and can set voluntarily weld interval equally, after arriving weld interval, automatically stops heating.
The electro-fusion welding machine of " constant-pressure type " and " constant-current type " is all voltage or the electric current in the output of inner utilization electronic circuit control, and makes it constant.To the having relatively high expectations of input voltage, when input voltage is too low, cannot guarantee voltage or the current constant of output like this.The electro-fusion welding machine of " constant-pressure type " and " constant-current type " has a scope to the voltage request of input, is generally ± 10% scope.The product of indivedual enterprises reached ± and 20%.In inside, increased by 220 volts and 380 volts automatically after identification, the scope of input voltage can reach 180～450 volts.
Electro-fusion welding machine is mostly applied on building site, and the quality of voltage on building site is poor, and voltage often exceeds the scope of national regulation, and transient change is also larger, while having large-scale electric equipment near especially.Field survey demonstration, when large-scale electric equipment is opened, the phase voltage in part building site can drop to 150 volts, and underproof voltage has directly affected the welding quality of electro-fusion welding machine.
Summary of the invention
For solving the technical problem of above-mentioned existence, the invention provides a kind of permanent heat electro-fusion welding machine, by detecting welding machine, export in real time the active power of electric welding head, be converted into calorie value, when the gross calorific value of output is while reaching the preset value of single-chip microcomputer inside, stop welding operation, owing to take the heat of electro-fusion welding machine output, be objective control function, increase greatly the voltage power supply scope of electro-fusion welding machine, guaranteed the quality of welding.
For achieving the above object, the technical solution adopted in the present invention is:
A kind of permanent heat electro-fusion welding machine, include transformer, relay, single-chip microcomputer, active power detecting unit, display unit and button, the periphery of described single-chip microcomputer is connected with respectively relay, display unit, button and active power detecting unit, described transformer is connected with relay, and described relay, active power detecting unit, electric welding head connect in turn.
Described single-chip microcomputer adopts ATtiny2313 model single-chip microcomputer.
Described active power detecting unit adopts electric energy computation chip ADE7755.
Described display unit adopts charactron.
The present invention has designed single-chip microcomputer and active power detecting unit, detect the active power of welding machine output, by single-chip microcomputer, be converted into thermal unit, the heat that the weld-end fittings of take again receives is target component, compare with the heat calibration value defaulting in single-chip microcomputer, as long as the calorie value of output equals calibration value, stop welding operation, weld interval, length was adjusted automatically by welding machine output device body heat value, guaranteed that welding machine moves in the wider voltage range of 100-450 volt, and the impact that not changed by instantaneous voltage, because the heat of output is constant, guaranteed the quality of welding, improved welding efficiency.
Accompanying drawing explanation
Fig. 1 is structural principle schematic diagram of the present invention.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, describe the present invention:
As shown in Figure 1, this perseverance heat electro-fusion welding machine, include transformer 1, relay 2, single-chip microcomputer 3, active power detecting unit 4, display unit 5 and button 6, the periphery of described single-chip microcomputer 3 is connected with respectively relay 2, display unit 5, button 6 and active power detecting unit 4, described transformer 1 is connected with relay 2, described relay 2 and active power detecting unit 4 are connected with electric welding 7 respectively, between described relay 2 and electric welding 7, be connected with current transformer, in described electric welding 7, be parallel with voltage transformer.
As preferably, described single-chip microcomputer 3 adopts ATtiny2313 model single-chip microcomputers.ATtiny2313 is 8 CMOS microcontrollers of low-power consumption of the AVR risc architecture based on strengthening.There is advanced instruction set and single clock cycle time for each instruction.Its kernel not only has abundant instruction set and also has 32 general purpose working registers.All registers are all directly connected with ALU (ALU), make an instruction can within a clock cycle, access two independently registers simultaneously.This structure has improved code efficiency greatly, and has and than common CISC microcontroller, be up to the data throughput of 10 times.ATtiny2313 has 2K byte In-System Programmable Flash, 128 byte EEPROM, 128 byte SRAM, 18 universaling I/O port lines, 32 general purpose working registers, to the one-wire interface of debugging in sheet, 2 timer/counters flexibly with comparison pattern, sheet inside/outside interrupts, serial programmable USART, the USB that has starting state detector, the programmable watchdog timer of lozenge internal oscillator, and the three kinds of battery saving modes that can select by software.
As preferred mode, described active power detecting unit 4 adopts electric energy computation chip ADE7755.ADE7755 is a high accuracy electric energy metering IC that is applicable to single phase distribution system.It can provide instantaneous active power and average active power based on bus voltage and Current calculation.The unique analog circuit using in ADE7755 is ADC and reference voltage circuit.All other signals are processed (for example multiplication and filtering) and all at numeric field, are realized.Sort signal processing method can environmental condition and time change very on a large scale in excellent stability and precision is provided.ADE7755 pin F1 and F2 be with lower frequency version active power of output mean value, can directly drive electromechanical register or with microcontroller (MCU) interface.Pin CF is with upper frequency formal output active power instantaneous value, for verification or with MCU interface.ADE7755 inside comprises a supervisory circuit to AVDD power pins.Before AVDD rises to 4V, ADE7755 remains on reset mode always.When AVDD drops to below 4V, ADE7755 is also reset, F1 now, and F2 and CF do not have output.Inner phase matched circuit mate the phase place of voltage and current passage all the time, no matter high-pass filter (HPL) in passage 1 be connect or disconnection.Inner unloaded threshold property guarantees that ADE7755 does not have shunt running when zero load.So adopt ADE7755 can accurately and reliably measure active power.
Because the information content showing is few, and engineering site environment is severe, and charactron shows durable, eye-catching, low-cost, so as preferred mode, described display unit 5 adopts charactron.
As a specific embodiment of the present invention, design a complete machine.Electric elements are arranged on surface-mounted integrated circuit, be arranged in complete machine housing, the red charactron of 4 0.8 is set at the front panel of complete machine housing, while normally welding, show the progress of welding, timing signal for the first time, charactron shows the numerical value of the Joule heat that pipe fitting receives with the form of flicker.Complete machine housing front panel is provided with two light emitting diodes, and one for display power supply situation, a duty (closed situation) that adds electrothermal relay 2 for showing.On complete machine housing, be also provided with button 6, one " startup ", one " stopping " of two not self-lockings.During normal as-welded, press " startup " button, welding starts, active power detecting unit 4 detects power output and passes to single-chip microcomputer 3, single-chip microcomputer 3 is converted into after calorie value and default heat calibration value comparison, and heat reaches after default heat calibration value, automatically stops welding.As run into fortuitous event and also can press " stopping " key and exit by force welded condition.Pin " stopping " key and power on, charactron flicker, automatically enters demarcation state, otherwise enters duty.Timing signal, starts by "start" button, when welding completes, when heat reaches requirement, presses " stopping " key and exits.
Instrument internal is provided with buzzer, during normal welding, is attended by and take the buzzer that be interval second.
Certainly, above-mentioned explanation is not limitation of the present invention, and the present invention is also not limited in above-mentioned giving an example, and the variation that those skilled in the art make in essential scope of the present invention, remodeling, interpolation or replacement, also should belong to protection scope of the present invention.
Claims (4)
1. a permanent heat electro-fusion welding machine, it is characterized in that, include transformer (1), relay (2), single-chip microcomputer (3), active power detecting unit (4), display unit (5) and button (6), the periphery of described single-chip microcomputer (3) is connected with respectively relay (2), display unit (5), button (6) and active power detecting unit (4), described transformer (1) is connected with relay (2), and described relay (2), active power detecting unit (4), electric welding head (7) connect in turn.
2. a kind of permanent heat electro-fusion welding machine according to claim 1, is characterized in that, described single-chip microcomputer (3) adopts ATtiny2313 model single-chip microcomputer.
3. a kind of permanent heat electro-fusion welding machine according to claim 1, is characterized in that, described active power detecting unit (4) adopts electric energy computation chip ADE7755.
4. a kind of permanent heat electro-fusion welding machine according to claim 1, is characterized in that, described display unit (5) adopts charactron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410332967.XA CN104129075A (en) | 2014-07-14 | 2014-07-14 | Constant-heat electric fusion welding machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410332967.XA CN104129075A (en) | 2014-07-14 | 2014-07-14 | Constant-heat electric fusion welding machine |
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| CN104129075A true CN104129075A (en) | 2014-11-05 |
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| CN201410332967.XA Pending CN104129075A (en) | 2014-07-14 | 2014-07-14 | Constant-heat electric fusion welding machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109591300A (en) * | 2018-12-10 | 2019-04-09 | 叶秋晨 | A kind of method for heating and controlling, storage medium and the terminal of pipe hot melting welding machine |
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| CN201724981U (en) * | 2010-06-01 | 2011-01-26 | 深圳市江机实业有限公司 | Electric energy meter with readable memory data |
| CN202058988U (en) * | 2011-02-23 | 2011-11-30 | 利尔达科技有限公司 | Intelligent metering socket |
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| US5620625A (en) * | 1992-06-01 | 1997-04-15 | Gaz De France (Service National) | Method of butt-welding two plastic parts with an identifying code, using an automatically controlled electro-welding machine |
| CN201437277U (en) * | 2009-08-04 | 2010-04-14 | 北京联合大学 | Electric smelting welder for abutting joint of helical bellows |
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Inventor after: Li Yiran Inventor after: Li Yingjian Inventor after: Xu Ying Inventor after: Gao Ronghua Inventor before: Li Yingjian Inventor before: Li Yiran Inventor before: Xu Ying Inventor before: Gao Ronghua |
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Effective date of registration: 20160108 Address after: 271000 Bowen middle school, Hushan East Road, Shandong, Tai'an Applicant after: Li Yiran Address before: 266000 Qingdao economic and Technological Development Zone, Shandong, Hong Kong Road, No. 579 Applicant before: Shandong Univ. of Science & Technology |
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Application publication date: 20141105 |