CN108994486B - Welding gun water cooling device - Google Patents
Welding gun water cooling device Download PDFInfo
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- CN108994486B CN108994486B CN201810062275.6A CN201810062275A CN108994486B CN 108994486 B CN108994486 B CN 108994486B CN 201810062275 A CN201810062275 A CN 201810062275A CN 108994486 B CN108994486 B CN 108994486B
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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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/003—Cooling means
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Abstract
The utility model provides a welder water cooling plant, which comprises an outer shell, the water tank, a water pump, water level switch, temperature switch, the electromagnetism water valve, the water filter, voltage stabilizing circuit, control circuit and component box, temperature switch inserts in shell body upper end middle part trompil pipeline, temperature switch's both ends pass through the wire with a switch's two wiring ends respectively and are connected, welder middle part is located the inlayer of shell body, two electromagnetism water valves are installed respectively at welder's upper and lower both ends in the left part, the water tank is installed on the supporting seat, the water pump is installed in the interior lower part of water tank, water level switch installs on two trompils in water tank right side end middle part, shell body and water tank, the water pump, the electromagnetism water valve, connect through the rubber tube between the water filter, the water pump, the electromagnetism water. The invention can effectively radiate heat for the welding gun, can control the working mode of the water pump to achieve the aim of saving energy, can inform a user when the water level is too low, and has good application prospect.
Description
Technical Field
The invention relates to the field of welding gun corollary equipment, in particular to a welding gun water cooling device.
Background
The welding gun works at a high temperature state for a long time, and the generated heat is easy to cause damage to the welding gun, so that the heat dissipation of the welding gun is the premise of ensuring the normal work of the welding gun and prolonging the service life. The existing welding gun generally dissipates heat through air, heat generated by the welding gun is taken away by air in work, and the air dissipation device has the advantages of simple structure and convenience in use, but the air dissipation effect is limited, so that the heat dissipation of the welding gun cannot be effectively guaranteed in practical application, the welding gun is easy to work abnormally and damage, and the application has limitation. Based on the above, it is particularly necessary to provide a welding gun water cooling device which adopts water cooling heat dissipation, is superior to the existing air heat dissipation, and can effectively ensure the normal work of a welding gun.
Disclosure of Invention
In order to overcome the defects of the existing welding gun adopting air for heat dissipation, the invention provides the welding gun water cooling device which adopts water cooling for heat dissipation of the welding gun shell, and can effectively ensure that the welding gun works at a lower temperature state through the action of relevant facilities during working, thereby achieving the purposes of ensuring the normal work of the welding gun and prolonging the service life of the welding gun.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a water cooling device for a welding gun is characterized by comprising an outer shell, a water tank, a water pump, a water level switch, a temperature switch, an electromagnetic water valve, a water filter, a voltage stabilizing circuit, a control circuit and an element box, wherein the middle part of the right end and the middle part of the left end of the outer shell are respectively provided with an opening, the inner part of the outer shell is of a hollow structure, the middle part of the upper end of the outer shell is provided with an opening, a pipeline is welded on the opening in the middle part of the upper end of the outer shell, the outer side of the upper part of the pipeline is provided with external threads, the pipeline is sleeved with an upper cover, the middle part of the upper cover is provided with an opening, the temperature switch is a negative temperature coefficient thermistor, the thermistor is inserted into the opening pipeline in the middle part of the upper end of the outer shell, the internal threads on the lower part of, an operating handle of a power supply switch is positioned outside a middle opening at the front end of an element box, the middle opening of an upper cover is sealed by glue, the middle part of a welding gun is positioned in an inner layer of an outer shell, the left part of the welding gun is positioned in a middle opening at the left end of the outer shell, the right part of the welding gun is positioned in a middle opening at the right end of the outer shell, the left part of the welding gun and the middle opening at the left end of the outer shell are in a sealing state, the right part of the welding gun and the middle opening at the right end of the outer shell are in a sealing state, the upper end and the lower end of the left part of the outer shell are respectively provided with an opening, each opening is welded with a connecting pipe, the water inlet end of a first electromagnetic water valve is connected with the upper end connecting pipe at the left part of the outer shell through a pipeline joint, the water outlet end of a second electromagnetic, the water tank is characterized in that a water return pipeline is arranged at the upper part of the side end of the water tank, a water outlet pipeline is arranged at the lower part of the side end of the water tank, a water outlet pipeline of the water pump is connected with the left side of the water outlet pipeline at the lower part of the side end of the water tank through a first rubber hose, the right side of the water outlet pipeline at the lower part of the side end of the water tank is connected with the water inlet end of the water filter through a second rubber hose, the water outlet end of the water filter is connected with the water inlet end of a second electromagnetic water valve through a third rubber hose, one end of a fourth rubber hose is inserted into the water outlet end of the first electromagnetic water valve, the other end of the fourth rubber hose is inserted into the water return pipeline at the upper part of the side end of the water tank, two copper screws are arranged on the two openings in the middle part of the right side, The control circuit is arranged in an element box which is arranged at the front end of a supporting seat, a connecting plate is welded at the lower end of an outer shell, the connecting plate is connected with a front supporting plate of the welding robot through a screw nut, two poles of a voltage stabilizing circuit and a 220V alternating current power supply are respectively connected through leads, the power output end of the voltage stabilizing circuit and the power input end of the control circuit are respectively connected through leads, the positive power output end of the voltage stabilizing circuit is connected with one copper screw of a water level switch and one end of a temperature switch through leads, the other copper screw is connected with a first signal input end of the control circuit through a lead, the other end of the temperature switch is connected with a second signal input end of the control circuit, the water pump, the electromagnetic water valve cathode power supply input end and the voltage stabilizing circuit cathode power supply output end are connected through leads.
The outer shell is a copper material.
The water pump is a submersible pump with working voltage of 12V and power of 50W, and the upper end of the shell of the water pump is lower than the two copper rods of the water level switch after the water pump is installed.
The working voltage of the electromagnetic water valve is 12V, and the inner valve core of the electromagnetic water valve is of a normally closed structure.
The voltage stabilizing circuit is a finished product of a DC switching power supply module converting 220V AC into 12V DC.
The control circuit comprises an adjustable resistor, a resistor, NPN triodes, a relay, PNP triodes and a buzzer, wherein the adjustable resistor, the NPN triodes, the relay, the PNP triodes and the buzzer are connected through a circuit board in a wiring way, an emitting electrode of a first PNP triode is connected with one end of a second resistor, an emitting electrode of a second PNP triode, and a control power supply input end of a first relay and a second relay, one end of the first resistor is connected with a base electrode of the first NPN triode, a collecting electrode of the first NPN triode is connected with a base electrode of the first PNP triode, a collecting electrode of the first PNP triode is connected with a positive power supply input end of the first relay, a normally closed contact end of the first relay is connected with a positive power supply input end of the buzzer, one end of the adjustable resistor is connected with a base electrode of the second NPN triode, a collecting electrode of the second PNP, the emitter of the first NPN triode, the emitter of the second NPN triode, the cathode power supply input end of the first relay, the cathode power supply input end of the buzzer and the cathode power supply input end of the second relay are grounded.
The invention has the beneficial effects that: when the water pump works, after the water pump is electrified, water in the water tank is pumped out and flows into the outer shell through a water outlet pipeline at the lower part of the side end of the water tank, the first rubber hose, the water filter, the second rubber hose, the third rubber hose and the second electromagnetic water valve with an opened inner valve core, and the water filter ensures that the water flowing into the outer shell is kept in a clean state and prevents the inner part of the outer shell from being blocked; after water enters the outer shell, because the welding gun is positioned in the inner layer of the outer shell, the flowing water flow can fully absorb heat generated when the welding gun works, and the welding gun is prevented from being overheated to influence normal work and damage; water after absorbing heat emitted by the welding gun flows back into the water tank through the first electromagnetic water valve with the opened inner valve core, the fourth rubber hose and a water return pipeline at the upper part of the side end of the water tank, and the upper part of the water tank is of an open structure and can fully dissipate the heat in the water. When the temperature of water entering the shell is lower than 50 ℃, a control circuit can cut off working power supplies of the water pump and the electromagnetic water valve to prevent the water pump from being always in a working state to cause electric energy waste when the temperature of the water is not high, and when the temperature of the water entering the shell absorbs heat generated by the work of the welding gun and is higher than 50 ℃, the control circuit can be connected with the working power supplies of the water pump and the electromagnetic water valve, so that the water in the water tank is pumped out by the water pump again to enter the shell to dissipate heat of the welding gun; under the action of the water level switch and the control circuit, when the water level in the water tank is lower than a certain level (water does not submerge the water pump any more), the buzzer can make a loud prompt sound to prompt a user that the water quantity in the water tank is too low and water should be added in time. The invention can effectively radiate heat for the welding gun, can control the working mode of the water pump to achieve the aim of saving energy, and can inform a user when the water level is too low, thereby having good application prospect.
Drawings
The invention is further illustrated below with reference to the figures and examples.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a circuit diagram of the present invention.
Detailed Description
As shown in figure 1, the water cooling device for the welding gun comprises an outer shell 1, a water tank 2, a water pump 3, a water level switch 4, a temperature switch 5, electromagnetic water valves 6-1 and 6-2, a water filter 7, a voltage stabilizing circuit 8, a control circuit 9 and an element box 10, wherein the middle part of the right end and the middle part of the left end of the outer shell 1 are respectively provided with an opening 1-1 and an opening 1-2, the inside of the outer shell 1 is of a hollow structure, the middle part of the upper end of the outer shell 1 is provided with an opening 1-3, the middle part of the upper end of the outer shell is welded with a pipeline 1-4, the outer side of the upper part of the pipeline 1-4 is provided with external threads, the pipeline is matched and sleeved with an upper cover 1-5, the middle part of the upper cover 1-5 is provided with an opening, the, the internal thread at the lower part of the upper cover 1-5 is screwed into the external thread at the upper end of the pipeline 1-4, the lead connected with the two ends of the thermistor 5 is led out from the opening at the middle part of the upper cover 1-5, the two ends of the thermistor 5 are respectively connected with the two terminals of a power switch 5-1 through leads, the operating handle of the power switch 5-1 is positioned outside the opening at the middle part of the front end of the element box 10, the opening at the middle part of the upper cover 1-5 is sealed by glue, the middle part of the welding gun 11 is positioned in the inner layer of the outer shell 1, the left part of the welding gun 11 is positioned in the opening 1-2 at the middle part of the left end of the outer shell 1, the right part of the welding gun 11 is positioned in the opening 1-1 at the middle part of the right end of the outer shell 1, the left part of the welding, the upper end and the lower end of the left part of the outer shell are respectively provided with an opening 1-6 and 1-7, each opening is welded with a connecting pipe 12 and 13, the water inlet end of a first electromagnetic water valve 6-1 is connected with the connecting pipe 12 at the upper end of the left part of the outer shell through a pipeline joint, the water outlet end of a second electromagnetic water valve 6-2 is connected with the connecting pipe 13 at the lower end of the left part of the outer shell through a pipeline joint, the two electromagnetic water valves 6-1 and 6-2 are respectively arranged at the upper end and the lower end of the left part of a welding gun 11, a water tank 2 is arranged on a supporting seat 14, a water pump 3 is arranged at the inner lower part of the water tank 2, the upper part of the side end of the water tank 2 is provided with a water return pipeline 15, the lower part of the side end of the water tank 2 is provided with a water outlet pipeline 16, the left side of the water outlet pipeline of the water pump 3 is connected with The water outlet end of the water filter 7 is connected with the water inlet end of the second electromagnetic water valve 6-2 through a third rubber hose 17-3, one end of a fourth rubber hose 17-4 is inserted into the water outlet end of the first electromagnetic water valve 6-1, the other end of the fourth rubber hose 17-4 is inserted into a water return pipeline 15 at the upper part of the side end of the water tank, the middle part of the right side end of the water tank 2 is provided with two openings, a water level switch 4 is two copper screws which are respectively arranged on the two openings at the middle part of the right side end of the water tank 2 through two rubber gaskets and nuts, the two copper screws are insulated with the water tank 2, the left parts of the two copper screws are positioned inside the water tank 2, a voltage stabilizing circuit 8 and a control circuit 9 are arranged in an element box 10, the element box 10 is arranged at the front end of a supporting seat 14, the lower end of the outer shell 1 is, two poles of a voltage stabilizing circuit 8 and a 220V alternating current power supply are respectively connected through leads, the power output end of the voltage stabilizing circuit 8 and the two ends of the power input end of a control circuit 9 are respectively connected through leads, the positive power output end of the voltage stabilizing circuit 8 and one copper screw of a water level switch 4 and one end of a temperature switch 5 are connected through leads, the other copper screw is connected with the first signal input end of the control circuit 9 through a lead, the other end of the temperature switch 5 is connected with the second signal input end of the control circuit 9 through a lead, the power output end of the control circuit 9 is connected with a water pump 3 and the positive power input ends of electromagnetic water valves 6-1 and 6-2 through leads, and the water pump 3, the negative power input ends of the electromagnetic water valves 6-1 and. The outer hull 1 is of copper material. The water pump 3 is a submersible pump with working voltage of 12V and power of 50W, and the upper end of the shell of the water pump 3 is lower than the two copper rods of the water level switch 4 after the water pump is installed. 19 is a welding robot.
As shown in FIG. 1, when the water pump works, after the water pump 3 and the electromagnetic water valves 6-1 and 6-2 are powered on to work, the water pump 3 pumps water in the water tank 2 and flows into the outer shell 1 through the water outlet pipeline 16 at the lower part of the side end of the water tank 2, the first rubber hose 17-1, the water filter 7, the second rubber hose 17-2, the third rubber hose 17-3 and the second electromagnetic valve 6-2 with an opened inner valve core, and the water filter 7 ensures that the water flowing into the outer shell 1 is kept in a clean state and prevents the inner part of the outer shell 1 from being blocked; after water enters the outer shell 1, because the middle part of the welding gun 11 is positioned in the inner layer of the outer shell 1, the flowing water flow can fully absorb heat generated when the welding gun 11 works, and the welding gun 11 is prevented from overheating to influence normal work and damage; water after absorbing heat emitted by the welding gun 11 flows back into the water tank 2 through the first electromagnetic water valve 6-1 with an opened inner valve core, the fourth rubber hose 17-4 and the water return pipeline 15 at the upper part of the side end of the water tank, and the upper part of the water tank 2 is an open mechanism which can fully dissipate the heat in the water. In the work, when the temperature of water entering the shell 1 is lower than 50 ℃, the control circuit 9 can cut off the working power supply of the water pump 3 and the electromagnetic water valves 6-1 and 6-2 to prevent the water pump 3 from always working to cause electric energy waste when the temperature of the water is not high, when the temperature of the water entering the shell 1 absorbs heat generated by the work of the welding gun 11 and is higher than 50 ℃, the control circuit 9 can be connected with the working power supply of the water pump 3 and the electromagnetic water valves 6-1 and 6-2, so that the water in the water tank 2 is pumped out by the water pump 3 again to enter the shell 1 to dissipate heat of the welding gun 11; under the action of the water level switch 4 and the control circuit 9, when the water level in the water tank 2 is lower than a certain level (the water does not submerge the water pump 3 any more), the buzzer can make a loud prompt sound to prompt a user that the water quantity in the water tank 2 is too low and water should be added in time. The invention can effectively radiate heat for the welding gun 11, can control the working mode of the water pump 7 to achieve the aim of saving energy, and can inform a user when the water level is too low, thereby having good application prospect.
In fig. 2, the water pump M is a submersible pump with an operating voltage of 12V and a power of 50W. The wage voltage of the electromagnetic water valves DC1 and DC2 is 12V, and the inner valve cores of the electromagnetic water valves are in a normally closed structure. The voltage stabilizing circuit IC is a finished product of a DC switching power supply module converting 220V AC into 12V DC. The control circuit comprises an adjustable resistor RP, resistors R1 and R2, NPN triodes Q1 and Q3, relays J1 and J2, PNP triodes Q2 and Q4 and a sounder XX which are connected through circuit board wiring, an emitter of a first PNP triode Q2 is connected with one end of a second resistor R2, an emitter of a second PNP triode Q4, a control power input end of a first relay J1 and a control power input end of a second relay J2, one end of a first resistor R1 is connected with a base of the first NPN triode Q1, a collector of the first NPN triode Q1 is connected with a base of the first PNP triode Q2, a collector of the first triode Q2 is connected with a positive power input end of a first relay J1, a normally closed contact end of the first relay J1 is connected with a power input end of the sounder XX, one end of the adjustable resistor RP is connected with a base of the second NPN triode Q3, a collector of the second relay R3 is connected with one end of the second relay R2, The base electrode of the second PNP triode Q4 is connected, the collector electrode of the second PNP triode Q4 is connected with the positive power supply input end of the second relay J2, the emitter electrode of the first NPN triode Q1, the emitter electrode of the second NPN triode Q3, the negative power supply input end of the first relay J1, the negative power supply input end of the buzzer XX and the negative power supply input end of the second relay J2 are grounded.
As shown in figure 2, pins 1 and 2 of a voltage stabilizing circuit IC and two poles of a 220V alternating current power supply are respectively connected through leads, pins 3 and 4 of a power output end of the voltage stabilizing circuit IC, one end of a resistor R2 at two ends of a power input end of a control circuit and an emitting electrode of an NPN triode Q1 are respectively connected through leads, one end of a copper screw T1 and one end of a temperature switch RT of the voltage stabilizing circuit IC are connected through leads, the other end of the copper screw T2 of the water level switch is connected with the other end of a resistor R1 at a first signal input end of the control circuit through leads, the other end of the temperature switch RT is connected with the other end of an adjustable resistor RP at a second signal input end of the control circuit through leads, a relay J2 at, the positive power input ends of the electromagnetic water valve DC1 and the DC2 are connected through a lead, and the negative power input ends of the water pump M, the electromagnetic water valve DC1 and the DC2 are connected with the pin 3 of the negative power output end of the voltage stabilizing circuit IC through a lead. Two ends of the thermistor RT are respectively connected with two wiring ends of a power switch S through leads, and an operating handle of the power switch S is positioned outside an opening in the middle of the front end of the element box.
As shown in fig. 2, after 220V ac power is input to the power input terminals 1 and 2 of the voltage stabilizing circuit IC, the power output terminals 3 and 4 of the voltage stabilizing circuit IC output stable 12V DC power to enter the control circuit and the power input terminals of the water pump M, the electromagnetic water valve DC1 and the DC2, the electromagnetic water valve DC1 and the DC2 are powered to operate, the internal valve core thereof is opened, after the water pump M is powered to operate, water in the water tank is pumped out and flows into the outer shell through the water outlet pipe at the lower part of the side end of the water tank, the first rubber hose, the water filter, the second rubber hose, the third rubber hose, and the second electromagnetic water valve DC2 with the internal valve core opened, and flowing water can fully absorb heat generated during operation of the welding gun, thereby preventing the welding gun from being overheated to affect normal; the water which absorbs the heat emitted by the welding gun flows back into the water tank. In the control circuit: in operation, when the water temperature in the outer shell is lower than 50 ℃, the resistance value of the thermistor RT is in a high state, a 12V direct-current power supply output by the voltage stabilizing circuit IC is subjected to voltage reduction through the thermistor RT and the adjustable resistor RP and then enters the base of an NPN triode Q1, the base voltage entering the NPN triode Q1 is lower than the 0.7V initial voltage of the NPN triode Q1, the NPN triode Q1 and the PNP triode Q2 are in a cut-off state, and the relay J2 is in a power-off stop working state, so that the input end of the control power supply is disconnected with the normally-open contact; because the normally open contact end of the relay J2 is connected with the water pump M, the two electromagnetic water valves DC1 and DC2 positive power supply input ends through leads, and the water pump M, the two electromagnetic water valves DC1 and DC2 negative power supply input ends are connected with the voltage stabilizing circuit IC negative power supply output end 3 pin through leads, the water pump M, the two electromagnetic water valves DC1 and DC2 lose power and stop working at the moment (when the invention is used for the first time, an operator opens the power switch S to enable the two ends of the thermistor RT to be in a short circuit state, therefore, even if the temperature in the outer shell is lower than 50 ℃, the resistance value of the thermistor RT is in a higher state, but because the two ends of the thermistor RT are in a connected state, the resistance value is zero, the base voltage of the 12V direct current power supply output by the voltage stabilizing circuit IC is reduced by the adjustable resistor RP, and then the base voltage entering the NPN triode Q1, the NPN triode Q1 and the PNP triode Q2 are conducted in succession, and the relay J2 is in an electrified working state, and the control power supply input end is communicated with the normally open contact end; because the normally open contact end of the relay J2 is connected with the water pump M and the positive power input ends of the two electromagnetic water valves DC1 and DC2 through leads, at the moment, the two electromagnetic water valves DC1 and DC2 can be used as the internal valve cores of the electromagnetic water valves to be opened, and the water pump M can be electrified to work to pump water in the water tank into the outer shell to dissipate heat of the welding gun; after water enters the outer shell, an operator turns off the power switch S, at the moment, if the water temperature in the outer shell is lower than 50 ℃, the relay J2 loses power and stops working, then, the water pump M and the two electromagnetic water valves DC1 and DC2 lose power and stop working, the inner valve cores of the two electromagnetic water valves DC1 and DC2 are closed after the two electromagnetic water valves DC1 and DC2 lose power and stop working, and the water entering the inner part of the outer shell cannot flow out, so that the heat dissipation of the welding gun is ensured. In the control circuit: in operation, when the water temperature in the outer shell is higher than 50 ℃, the resistance value of the thermistor RT rapidly becomes low, a 12V direct-current power supply output by the voltage stabilizing circuit IC is subjected to voltage reduction through the thermistor RT and the adjustable resistor RP and then enters the base of the NPN triode Q1, the voltage entering the base of the NPN triode Q1 is higher than the 0.7V initial voltage of the NPN triode Q1, and then the NPN triode Q1 and the PNP triode Q2 are in a conducting state, the relay J2 is in an electrified attraction state, and the control power supply input end is communicated with the normally open contact end; because the normally open contact end of the relay J2 is connected with the water pump M, the positive power input end of the two electromagnetic water valves DC1 and DC2 through the leads, and the negative power input end of the water pump M is connected with the 3-pin negative power output end of the voltage stabilizing circuit IC, the water pump M, the two electromagnetic water valves DC1 and DC2 can be powered on to work at the moment, the internal valve cores of the two electromagnetic water valves DC1 and DC2 are opened, and water pumped out by the water pump M enters the outer shell to dissipate heat of the welding gun. Through the above, when the water temperature in the outer shell is lower than 50 ℃, the water pump M and the two electromagnetic water valves DC1 and DC2 lose power and stop working, and when the water temperature in the outer shell is higher than 50 ℃, the water pump M and the two electromagnetic water valves DC1 and DC2 can work electrically, so that the water state is kept in the outer shell all the time, the water temperature is always below 50 ℃, and the heat radiation of the welding gun is effectively realized.
As shown in fig. 2, the control circuit includes: when water exists in the water tank, the two copper rods T1 and T2 are submerged by the water, the base electrode of an NPN triode Q1 obtains power supply conduction from the positive electrode of the power supply output end of the voltage stabilizing circuit IC through a resistor R1, the water, the two copper rods T1 and T2, and then the PNP triode Q2 is conducted, a relay J1 is electrified and closed, and the control power supply input end and the normally closed contact end are disconnected; when the water level in the water tank is reduced, the copper rods T1 and T2 cannot be submerged by water, the base electrode of the NPN triode Q1 cannot obtain power supply conduction from the positive electrode of the power output end of the voltage stabilizing circuit through the resistor R1, the water, the two copper rods T1 and the two copper rods T2, and then the PNP triode Q2 is cut off, the relay J1 loses power and stops attracting the control power input end and the normally closed contact end to be closed; because the normally closed contact end of the relay J1 is connected with the positive power input end of the buzzer XX, and the negative power input end of the buzzer XX is grounded, when the water level of the water tank is reduced to a certain extent and the water pump M cannot be submerged, the relay J1 loses power and stops closing the control power input end and the normally closed contact end, the buzzer XX can make a loud alarm sound, and a user is prompted that water should be added in time when the water level is too low. The invention can effectively radiate heat for the welding gun, can control the working mode of the water pump M to achieve the aim of saving energy, and can inform a user when the water level is too low, thereby having good application prospect.
As shown in FIG. 2, the voltage regulator IC is a finished product of a 220V AC to 12V DC switching power supply module, and the brand is MEAN WELL/Ming latitude and LRS-75-12. In the control circuit: the model of the adjustable resistor RP is 1M; the resistances of the resistors R1 and R2 are 30K and 47K respectively; model numbers of NPN triodes Q1 and Q3 are 9014; relays J1 and J2 are 4123 type 12V mini-relays; model numbers of PNP triode Q2 and Q4 are 9012; the buzzer XX is an active buzzer of SFM-27 DC 3-12V. The working voltage of the electromagnetic water valves DC1 and DC2 is 12V, the power is 5W, and the inner valve cores of the electromagnetic water valves are in a normally closed structure. The temperature switch RT model is NTC 103D.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed.
Claims (5)
1. A water cooling device of a welding gun is characterized by comprising an outer shell, a water tank, a water pump, a water level switch, a temperature switch, an electromagnetic water valve, a water filter, a voltage stabilizing circuit, a control circuit and an element box, wherein the inner part of the outer shell is of a hollow structure, a pipeline is installed on a hole in the middle of the upper end of the outer shell, external threads are arranged on the outer side of the upper part of the pipeline, an upper cover is matched and sleeved on the pipeline, the temperature switch is a negative temperature coefficient thermistor, the thermistor is inserted into the pipeline with the hole in the middle of the upper end of the outer shell, leads connected with two ends of the thermistor are led out from the hole in the middle of the upper cover, two ends of the thermistor are respectively connected with two terminals of a power switch through leads, the middle of the welding gun is positioned in the inner layer of the outer shell, the left part of the welding gun is positioned in the hole in the middle of the left end of, the water outlet end of a second electromagnetic water valve is connected with a connecting pipe at the lower left end of the outer shell through a pipeline joint, the two electromagnetic water valves are respectively arranged at the upper end and the lower end of the left part of the welding gun, the water tank is arranged on a supporting seat, the water pump is arranged at the inner lower part of the water tank, the water outlet end pipeline of the water pump is connected with the left side of the water outlet pipeline at the lower side of the water tank through a first rubber hose, the right side of the water outlet pipeline at the lower side of the water tank is connected with the water inlet end of a water filter through a second rubber hose, the water outlet end of the water filter is connected with the water inlet end of the second electromagnetic water valve through a third rubber hose, one end of a fourth rubber hose is inserted into the water outlet end of the first electromagnetic water valve, the other end of the fourth rubber hose is inserted into the water return pipeline at the upper part of the side of the water tank, the voltage stabilizing circuit and the control circuit are arranged in an element box, the element box is arranged at the front end of the supporting seat, a connecting plate is welded at the lower end of the outer shell, the connecting plate is connected with a front supporting plate of the welding robot through a screw nut, the voltage stabilizing circuit and the two poles of a 220V alternating current power supply are respectively connected through leads, the power output end of the voltage stabilizing circuit and the power input end of the control circuit are respectively connected through leads, the positive power output end of the voltage stabilizing circuit and one copper screw of a water level switch are connected through leads, one end of a temperature switch is connected through a lead, the other copper screw is connected with a first signal input end of the control circuit through a lead, the other end of the temperature switch, the water pump, the electromagnetic water valve cathode power supply input end and the voltage stabilizing circuit cathode power supply output end are connected through leads; the control circuit comprises an adjustable resistor, a resistor, an NPN triode, a relay, a PNP triode and a buzzer, wherein the adjustable resistor, the NPN triode, the relay, the PNP triode and the buzzer are connected through a circuit board in a wiring way, an emitting electrode of a first PNP triode is connected with one end of a second resistor, an emitting electrode of a second PNP triode, and a control power supply input end of a first relay and a second relay, one end of the first resistor is connected with a base electrode of the first NPN triode, a collecting electrode of the first NPN triode is connected with a base electrode of the first PNP triode, a collecting electrode of the first PNP triode is connected with a positive power supply input end of the first relay, a normally closed contact end of the first relay is connected with a positive power supply input end of the buzzer, one end of the adjustable resistor is connected with a base electrode of the second NPN triode, a collecting electrode of the second PNP triode, the emitter of the first NPN triode, the emitter of the second NPN triode, the cathode power supply input end of the first relay, the cathode power supply input end of the buzzer and the cathode power supply input end of the second relay are grounded.
2. The torch water cooling device as claimed in claim 1, wherein the outer shell is a copper material.
3. The water cooling device for the welding gun according to claim 1, wherein the water pump is a submersible pump with a working voltage of 12V and a power of 50W, and the upper end of the shell of the water pump is lower than the two copper rods of the water level switch after the water pump is installed.
4. The welding gun water cooling device according to claim 1, wherein the electromagnetic water valve has an operating voltage of 12V, and an internal valve core thereof is of a normally closed structure.
5. The water cooling device for the welding gun according to claim 1, wherein the voltage regulator circuit is a finished product of a switching power supply module converting 220V AC to 12V DC.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810062275.6A CN108994486B (en) | 2018-01-23 | 2018-01-23 | Welding gun water cooling device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810062275.6A CN108994486B (en) | 2018-01-23 | 2018-01-23 | Welding gun water cooling device |
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| CN108994486B true CN108994486B (en) | 2020-03-31 |
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| CN206611215U (en) * | 2017-04-10 | 2017-11-03 | 山东智翔电子技术有限公司 | A kind of Multifunctional multimedia intelligent charging spot |
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| CN201815808U (en) * | 2010-04-16 | 2011-05-04 | 深圳市佳士科技股份有限公司 | Novel water-cooling circulation cooling system |
| CN202824952U (en) * | 2012-07-25 | 2013-03-27 | 北京帕尔斯德科技发展有限公司安徽分公司 | Water-cooling welding gun for repairing wear-resistant pieces |
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