Cooling water recovery device of welding gun

Abstract

The utility model provides a cooling water recovery device of a welding gun, and belongs to the technical field of welding. Comprising a welding gun electrode water inlet loop and a welding gun electrode water outlet loop, the welding gun electrode water inlet loop comprises a first water inlet pipe and a first cleaning inlet pipe, and the welding gun electrode water outlet loop comprises a first water outlet pipe and a first cleaning outlet pipe. Cooling water can be pushed out from the cleaning outlet pipe by connecting an external compressed air source, so that the cooling water in an electrode loop is cleaned out, the cooling water is prevented from splashing to pollute a workshop when an electrode is replaced, and the cooling water can be recycled by connecting the cleaning outlet pipe with a storage device; and after the pipeline is used for a long time, impurities in the pipeline are blown out through compressed air, and the effect of preventing the pipeline from being blocked is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to a cooling water recovery device for a welding gun. Background Art

[0002] During the body-in-white manufacturing process, the body needs to be spot welded. During the welding process, the welding gun's transformer, electrode arm and electrode will generate a lot of heat. If the heat is not eliminated, it will affect the quality of the weld. At the same time, the heat will cause the electrode to stick to the plate and damage the welding gun electrode arm. Therefore, in order to ensure the quality of the weld and protect the welding gun components, the welding gun transformer, electrode arm and electrode end need to be cooled by cooling water. At the same time, the flow of cooling water needs to be monitored. When the flow is lower than the set value, an alarm signal is issued and the robot welding is stopped to prevent abnormal weld quality or equipment damage.

[0003] The existing cooling water station is installed outside the automatic line fence, with various specifications, which can correspond to the cooling needs of 1-5 welding guns respectively. For example, Chinese patent CN202222149737.2 discloses a cooling circulating water tank and welding equipment. The cooling circulating water tank is arranged in the welding equipment. The above cooling circulating water tank is used to cool the welding gun during welding. The above cooling circulating water tank includes: a water storage tank, a water pump, a radiator, which is arranged on one side of the above first water pipe, and the above radiator is configured to be able to exchange heat with the water flowing through the above first water pipe; and a detection component, which is arranged on the second water pipe between the above return water end and the above water storage tank, and the above detection component is configured to detect the temperature and flow of the cooling water in the above second water pipe. When the existing device replaces the electrode, the cooling water in the return water pipeline will be sprayed out in large quantities, affecting the cleanliness of the ground. Spraying onto the equipment will also cause the equipment to rust and damage, and cause waste of water resources.

[0004] Chinese patent CN202010836461.8 discloses a cooling water return device for an automatic welding gun, including a water inlet circuit connected to the water inlet end of a welding control cabinet, and a water outlet circuit connected to the water outlet end of the welding control cabinet. The water inlet circuit includes a water inlet pipe, a water return cylinder, a gas control device for controlling the vacuum of the water return cylinder, and a multi-way valve arranged on the water inlet pipe. The water return cylinder is connected to the water inlet pipe through the multi-way valve; the water outlet circuit includes a water outlet pipe and a control valve for controlling the one-way discharge of cooling water in the water outlet pipe. The gas control device controls the water return cylinder to vacuum the water inlet pipe, and then extracts the cooling water retained in the electrode head or the electrode cap through the water outlet circuit. The device is equipped with a water return cylinder and an additional air inlet pipe, which increases the volume of the device. In addition, the vacuuming method is adopted, so there is a problem of incomplete extraction and residual cooling water still remaining inside.

[0005] In summary, when the welding gun electrode is replaced, the existing device has the problem of incomplete treatment of cooling water in the return water pipeline in the welding gun, which affects the equipment, and has the problem of complex structure and inconvenience in cleaning impurities. Utility Model Content

[0006] In order to overcome at least one of the above technical problems, the utility model provides a cooling water recovery device for a welding gun, comprising a welding gun electrode water inlet circuit and a welding gun electrode water outlet circuit.

[0007] The welding gun electrode water inlet circuit includes a first water inlet pipe and a first cleaning inlet pipe, wherein the first water inlet end of the first water inlet pipe is used to connect to the water outlet end of the cooling water system, the first water outlet end of the first water inlet pipe is used to connect to the electrode water inlet of the welding gun, one end of the first cleaning inlet pipe is connected to the inside of the first water inlet pipe, and the other end of the first cleaning inlet pipe is used to connect to a compressed air source.

[0008] The welding gun electrode water outlet circuit includes a first water outlet pipe and a first cleaning outlet pipe, the second water inlet end of the first water outlet pipe is used to connect to the electrode water return circuit of the welding gun, the second water outlet end of the first water outlet pipe is used to connect to the water inlet end of the cooling water system, and one end of the first cleaning outlet pipe is connected to the inside of the first water outlet pipe.

[0009] Preferably, a first control valve is installed on the first water inlet end, a second control valve is installed on the first cleaning inlet pipe, a third control valve is installed on the second water outlet end, and a fourth control valve is installed on the first cleaning outlet pipe.

[0010] Preferably, a stop valve is installed on the first water inlet pipe, and the stop valve is located between the first cleaning inlet pipe and the first water inlet end.

[0011] Preferably, a first one-way valve and a first flow meter are installed on the first water outlet pipe, and the first one-way valve and the first flow meter are located between the first cleaning outlet pipe and the second water outlet end, a fifth control valve is installed on the first water outlet end, and a sixth control valve is installed on the second water inlet end.

[0012] Preferably, it also includes a welding gun transformer water inlet circuit and a welding gun transformer water outlet circuit,

[0013] The welding gun transformer water inlet circuit includes a second water inlet pipe and a second cleaning inlet pipe, the third water inlet end of the second water inlet pipe is used to connect to the water outlet end of the cooling water system, the third water outlet end of the second water inlet pipe is used to connect to the transformer water return of the welding gun, one end of the second cleaning inlet pipe is connected to the inside of the second water inlet pipe, and the other end of the second cleaning inlet pipe is used to connect to the compressed air source,

[0014] The welding gun transformer water outlet circuit includes a second water outlet pipe and a second cleaning outlet pipe, the fourth water inlet end of the second water outlet pipe is used to connect to the transformer return water circuit of the welding gun, the fourth water outlet end of the second water outlet pipe is used to connect to the water inlet end of the cooling water system, and one end of the second cleaning outlet pipe is connected to the inside of the second water outlet pipe.

[0015] Preferably, a seventh control valve is installed on the third water inlet end, an eighth control valve is installed on the second cleaning inlet pipe, a ninth control valve is installed on the fourth water outlet end, and a tenth control valve is installed on the second cleaning outlet pipe.

[0016] Preferably, a second one-way valve and a second flow meter are installed on the second water outlet pipe, and the second one-way valve and the second flow meter are located between the second cleaning outlet pipe and the fourth water outlet end, an eleventh control valve is installed on the third water outlet end, and a twelfth control valve is installed on the fourth water inlet end.

[0017] Preferably, the first control valve, the second control valve, the third control valve, the fourth control valve, the fifth control valve, the sixth control valve, the seventh control valve, the eighth control valve, the ninth control valve, the tenth control valve, the eleventh control valve and the twelfth control valve are all ball valves.

[0018] Preferably, the second flow meter and the second flow meter are both clamp-type flow meters.

[0019] Preferably, the first water inlet and the third water inlet are respectively connected to the water outlet of the cooling water system through the main water inlet pipe, the second water outlet and the fourth water outlet are respectively connected to the water inlet of the cooling water system through the main water outlet pipe, and the welding gun electrode water inlet circuit, the welding gun electrode water outlet circuit, the welding gun transformer water inlet circuit and the welding gun transformer water outlet circuit, the main water inlet pipe and the main water outlet pipe are all installed on the same side of the frame.

[0020] Preferably, the first water inlet end and the third water inlet end are connected to the main water inlet pipe through a reducing tee, and the second water outlet end and the fourth water outlet end are connected to the main water outlet pipe through a reducing tee.

[0021] Preferably, the main water inlet pipe and the main water outlet pipe are made of 1-inch inner diameter stainless steel pipes, and the first water inlet pipe, the first water outlet pipe, the second water inlet pipe and the second water outlet pipe are made of 0.5-inch inner diameter stainless steel pipes.

[0022] Preferably, a bus module is installed on the other side of the frame, and the bus module is electrically connected to the operating console control system.

[0023] Preferably, a pumping device is installed on the other side of the frame, and the pumping end of the pumping device is connected to the water outlet circuit of the welding gun electrode.

[0024] Compared with the prior art, the beneficial effects of the technical solution of the utility model are:

[0025] The utility model provides a cooling water recovery device for a welding gun.

[0026] 1. By setting up a cleaning inlet pipe and a cleaning outlet pipe connecting loop, the cooling water can be pushed out from the cleaning outlet pipe by connecting to an external compressed air source, thereby cleaning out the cooling water in the electrode loop. When replacing the electrode, it will not cause splashing of cooling water to pollute the workshop, and the cooling water can be recovered by connecting the cleaning outlet pipe to a storage device; and after a long period of use, compressed gas is used to blow out impurities in the pipeline to prevent pipeline blockage.

[0027] 2. The overall structure of the device is simple, occupies a small space, is supported by a frame, is easy to move, and is easy to connect or separate with the cooling water system and welding gun, and is highly practical;

[0028] 3. Using a pumping device to pump water and compressed air to push the water can achieve a better cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0030] Figure 2 This is a schematic diagram of the front view structure of the utility model;

[0031] Figure 3 This is a schematic diagram of the rear structure of the utility model;

[0032] Among them: 1. Welding gun electrode water inlet circuit; 2. Welding gun electrode water outlet circuit; 3. Welding gun transformer water inlet circuit; 4. Welding gun transformer water outlet circuit; 5. Main water inlet pipe; 6. Main water outlet pipe; 7. Frame; 8. Bus module; 9. Pumping device;

[0033] 11. First water inlet pipe; 12. First cleaning inlet pipe; 21. First water outlet pipe; 22. First cleaning outlet pipe; 111. First water inlet end; 112. First water outlet end; 113. First control valve; 114. Stop valve; 115. Fifth control valve; 121. Second control valve; 211. Second water inlet end; 212. Second water outlet end; 213. Third control valve; 214. First check valve; 215. First flow meter; 216. Sixth control valve; 221. Fourth control valve; 31. Second inlet Water pipe; 32, second cleaning inlet pipe; 41, second water outlet pipe; 42, second cleaning outlet pipe; 311, third water inlet end; 312, third water outlet end; 313, seventh control valve; 314, stop valve; 315, eleventh control valve; 321, eighth control valve; 411, fourth water inlet end; 412, fourth water outlet end; 413, ninth control valve; 414, second one-way valve; 415, second flow meter; 416, twelfth control valve; 421, tenth control valve; 91, solenoid valve of pumping device. DETAILED DESCRIPTION

[0034] The drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate this embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. Technologies, methods, and devices known to ordinary technicians in the relevant field may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be considered part of the authorization specification. In the description of the present invention, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated; nor do they indicate the importance of components, and therefore cannot be understood as limiting the present invention.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. The specific dimensions used in this embodiment are only for illustrating the technical solution and do not limit the scope of protection of the present invention.

[0036] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0037] Embodiment 1:

[0038] refer to Figure 1 As shown, a cooling water recovery device for a welding gun includes a welding gun electrode water inlet circuit 1 and a welding gun electrode water outlet circuit 2.

[0039] The welding gun electrode water inlet circuit 1 comprises a first water inlet pipe 11 and a first cleaning inlet pipe 12. The first water inlet end 111 of the first water inlet pipe 11 is used to connect to the water outlet end of the cooling water system. The first water outlet end 112 of the first water inlet pipe 11 is used to connect to the electrode water inlet of the welding gun. One end of the first cleaning inlet pipe 12 is connected to the inside of the first water inlet pipe 11. The other end of the first cleaning inlet pipe 12 is used to connect to a compressed air source.

[0040] The welding gun electrode water outlet circuit 2 includes a first water outlet pipe 21 and a first cleaning outlet pipe 22. The second water inlet end 211 of the first water outlet pipe 21 is used to connect to the electrode water return circuit of the welding gun. The second water outlet end 212 of the first water outlet pipe 21 is used to connect to the water inlet end of the cooling water system. One end of the first cleaning outlet pipe 22 is connected to the inside of the first water outlet pipe 21.

[0041] Under normal working conditions, the welding gun electrode water inlet circuit 1 is respectively connected with the cooling water system of the workshop and the electrode water inlet of the welding gun, that is, the first water inlet end 111 of the first water inlet pipe 11 is connected with the water outlet end of the cooling water system, and the first water outlet end 112 of the first water inlet pipe 11 is connected with the electrode water inlet of the welding gun. Similarly, the welding gun electrode water outlet circuit 2 is respectively connected with the cooling water system of the workshop and the electrode water return of the welding gun, that is, the second water inlet end 211 of the first water outlet pipe 21 is connected with the electrode water return of the welding gun, and the second water outlet end 212 of the first water outlet pipe 21 is connected with the water inlet end of the cooling water system to form a circuit; the first cleaning inlet pipe 12 and the first cleaning outlet pipe 22 are used in a closed state and are not connected to the outside, so that cooling water cannot flow out of the welding gun electrode water inlet circuit 1 and the welding gun electrode water outlet circuit 2 from the first cleaning inlet pipe 12 and the first cleaning outlet pipe 22.

[0042] During operation, cooling water flows from the outlet end of the cooling water system into the first water inlet end 111 of the first water inlet pipe 11, flows through the inside of the first water inlet pipe 11 to the first water outlet end 112, and then flows into the electrode water inlet path of the welding gun, absorbing a large amount of heat generated by the electrode and electrode arm of the welding gun during welding, and then flows into the second water inlet end 211 of the first water outlet pipe 21, passes through the inside of the first water outlet pipe 21 to the second water outlet end 212, and then flows into the cooling water system of the workshop to cool it down, forming a cooling water circulation again to reduce the heat of the electrode and electrode arm of the welding gun;

[0043] When the electrode of the welding gun needs to be replaced, firstly, the first water inlet end 111 of the first water inlet pipe 11 is disconnected from the water outlet end of the cooling water system, the second water outlet end 212 is disconnected from the water inlet end of the cooling water system, the first water inlet end 111 and the second water outlet end 212 are closed, and then the end of the first cleaning inlet pipe 12 is opened and connected to a compressed air source, which can be an existing device that can generate compressed air. The compressed air pushes the cooling water in the first water inlet pipe 11, the electrode water inlet path of the welding gun, the electrode water return path of the welding gun, and the first water outlet pipe 21, and flows from the first cleaning inlet pipe 12 to the first cleaning outlet pipe 22, so that the cooling water in the electrode of the welding gun is emptied and flows out from the first cleaning outlet pipe 22. The outlet of the first cleaning outlet pipe 22 can be connected to a water storage device such as a water storage cylinder; the cooling water is pushed out by compressed air to prevent the residual cooling water in the electrode water inlet path and the electrode water return path from splashing when the electrode is replaced, to prevent the waste of cooling water, and to prevent rust damage on the spraying equipment and affecting the cleanliness of the ground.

[0044] Similarly, after long-term use, when the welding gun electrode water inlet circuit 1, the welding gun electrode water outlet circuit 2, the electrode water inlet circuit, and the electrode water return circuit are scaled or other impurities are introduced into the cooling water and need to be cleaned, compressed air is used to blow in high-pressure gas to blow the impurities out from the outlet of the first cleaning outlet pipe 22 to complete the cleaning.

[0045] In a further embodiment, reference is made to Figure 1 As shown, a first control valve 113 is installed on the first water inlet end 111 , a second control valve 121 is installed on the first cleaning inlet pipe 12 , a third control valve 213 is installed on the second water outlet end 212 , and a fourth control valve 221 is installed on the first cleaning outlet pipe 22 .

[0046] The first control valve 113 is used to control the connection or shutdown between the first water inlet end 111 and the water outlet end of the cooling water system, so that the cooling water system can be kept connected to the first water inlet end 111. The switch of the first control valve 113 is controlled to control whether the cooling water flows into the first water inlet pipe 11. The second control valve 121 is installed on the first cleaning inlet pipe 12 to control whether the air source can be input into the first water inlet pipe 11. The second control valve 121 is used to facilitate the control of the connection and shutdown of the first cleaning inlet pipe 12. Similarly, the third control valve 213 is used to control the connection or shutdown of the second water outlet end 212 and the water inlet end of the cooling water system, and the fourth control valve 221 controls the connection and shutdown of the first cleaning outlet pipe 22.

[0047] In a further embodiment, reference is made to Figure 1 As shown, a stop valve 114 is installed on the first water inlet pipe 11, and the stop valve 114 is located between the first cleaning inlet pipe 12 and the first water inlet end 111; the connection or closing of the first water inlet pipe 11 and the cooling water system is controlled by the stop valve 114, and the flow rate can be controlled by the stop valve 114.

[0048] In a further embodiment, reference is made to Figure 1 As shown, a first one-way valve 214 and a first flow meter 215 are installed on the first water outlet pipe 21, and the first one-way valve 214 and the first flow meter 215 are located between the first cleaning outlet pipe 22 and the second water outlet end 212, a fifth control valve 115 is installed on the first water outlet end 112, and a sixth control valve 216 is installed on the second water inlet end 211.

[0049] The first one-way valve 214 is used to prevent the cooling water from flowing back in the first water outlet pipe 21, so that the cooling water flows from the second water inlet end 211 to the second water outlet end 212. The flow value is calculated by setting the first flow meter 215 to facilitate monitoring; the fifth control valve 115 is installed at the first water outlet end 112 to control the connection or closing of the first water outlet end 112 with the electrode water inlet of the welding gun. Similarly, the sixth control valve 216 controls the connection or closing of the second water inlet end 211 with the water inlet end of the cooling water system to facilitate maintenance.

[0050] Embodiment 2:

[0051] refer to Figure 2 As shown, it also includes a welding gun transformer water inlet circuit 3 and a welding gun transformer water outlet circuit 4,

[0052] The welding gun transformer water inlet circuit 3 includes a second water inlet pipe 31 and a second cleaning inlet pipe 32. The third water inlet end 311 of the second water inlet pipe 31 is used to connect to the water outlet end of the cooling water system. The third water outlet end 312 of the second water inlet pipe 31 is used to connect to the transformer water return of the welding gun. One end of the second cleaning inlet pipe 32 is connected to the inside of the second water inlet pipe 31. The other end of the second cleaning inlet pipe 32 is used to connect to the compressed air source.

[0053] The welding gun transformer water outlet circuit 4 includes a second water outlet pipe 41 and a second cleaning outlet pipe 42. The fourth water inlet end 411 of the second water outlet pipe 41 is used to connect to the transformer return water circuit of the welding gun. The fourth water outlet end 412 of the second water outlet pipe 41 is used to connect to the water inlet end of the cooling water system. One end of the second cleaning outlet pipe 42 is connected to the inside of the second water outlet pipe 41.

[0054] During operation, cooling water flows from the outlet of the cooling water system into the third water inlet end 311 of the second water inlet pipe 31, flows through the inside of the second water inlet pipe 31 to the third water outlet end 312, and then flows into the transformer return water path of the welding gun, absorbing a large amount of heat generated by the transformer of the welding gun during welding, and then flows into the fourth water inlet end 411 of the second water outlet pipe 41, passes through the inside of the second water outlet pipe 41 to the fourth water outlet end 412, and then flows into the cooling water system of the workshop to cool it down, forming a cooling water circulation again to reduce the heat of the transformer of the welding gun;

[0055] When the transformer of the welding gun needs to be replaced, firstly, the third water inlet end 311 of the second water inlet pipe 31 is disconnected from the water outlet end of the cooling water system, the fourth water outlet end 412 is disconnected from the water inlet end of the cooling water system, the third water inlet end 311 and the fourth water outlet end 412 are closed, and then the end of the second cleaning inlet pipe 32 is opened and connected to the compressed air source, the compressed air source can be an existing device that can generate compressed air, and the compressed air pushes the cooling water in the second water inlet pipe 31, the return water path of the welding gun transformer, and the second water outlet pipe 41, and flows from the second cleaning inlet pipe 32 to the second cleaning outlet pipe 42, so that the cooling water in the welding gun transformer is emptied and flows out from the second cleaning outlet pipe 42, and the outlet of the second cleaning outlet pipe 42 can be connected to a water storage device such as a water storage cylinder; the cooling water is pushed out by compressed air to prevent the residual cooling water in the return water path from splashing, prevent the cooling water from being wasted, and also prevent the spraying equipment from being rusted and damaged, affecting the cleanliness of the ground.

[0056] Similarly, after long-term use, when the welding gun transformer water inlet circuit 3 and the welding gun transformer water outlet circuit 4 need to be cleaned due to scale generated by cooling water or other impurities, compressed air is used to blow high-pressure gas to blow the impurities out from the outlet of the second cleaning outlet pipe 42 to complete the cleaning.

[0057] In a further embodiment, reference is made to Figure 2As shown, a seventh control valve 313 is installed on the third water inlet end 311 , an eighth control valve 321 is installed on the second cleaning inlet pipe 32 , a ninth control valve 413 is installed on the fourth water outlet end 412 , and a tenth control valve 421 is installed on the second cleaning outlet pipe 42 .

[0058] The seventh control valve 313 is used to control the connection or shutdown between the third water inlet end 311 and the water outlet end of the cooling water system, so that the cooling water system can be kept connected to the third water inlet end 311. The switch of the seventh control valve 313 is controlled to control whether the cooling water flows into the second water inlet pipe 31. The eighth control valve 321 is installed on the second cleaning inlet pipe 32 to control whether the gas source can be input into the second water inlet pipe 31. The connection and shutdown of the second cleaning inlet pipe 32 can be easily controlled by the eighth control valve 321. Similarly, the ninth control valve 413 is used to control the connection or shutdown of the fourth water outlet end 412 and the water inlet end of the cooling water system, and the tenth control valve 421 controls the connection and shutdown of the second cleaning outlet pipe 42.

[0059] In a further embodiment, reference is made to Figure 2 As shown, a second one-way valve 414 and a second flow meter 415 are installed on the second water outlet pipe 41, and the second one-way valve 414 and the second flow meter 415 are located between the second cleaning outlet pipe 42 and the fourth water outlet end 412, an eleventh control valve 315 is installed on the third water outlet end 312, and a twelfth control valve 416 is installed on the fourth water inlet end 411.

[0060] The second one-way valve 414 is used to prevent the cooling water from flowing back in the second water outlet pipe 41, so that the cooling water flows from the fourth water inlet end 411 to the fourth water outlet end 412. The flow value is calculated by setting a second flow meter 415 to facilitate monitoring; the eleventh control valve 315 is installed at the third water outlet end 312 to control the connection or closing of the third water outlet end 312 with the transformer return water circuit of the welding gun. Similarly, the twelfth control valve 416 controls the connection or closing of the fourth water inlet end 411 with the water inlet end of the cooling water system to facilitate maintenance.

[0061] In a further embodiment, reference is made to Figure 1-2 As shown, the first water inlet end 111 and the third water inlet end 311 are connected to the water outlet end of the cooling water system through the main water inlet pipe 5, respectively, the second water outlet end 212 and the fourth water outlet end 412 are connected to the water inlet end of the cooling water system through the main water outlet pipe 6, respectively, and the welding gun electrode water inlet circuit 1, the welding gun electrode water outlet circuit 2, the welding gun transformer water inlet circuit 3 and the welding gun transformer water outlet circuit 4, the main water inlet pipe 5, and the main water outlet pipe 6 are all installed on the same side of the frame 7.

[0062] The cooling water input to the first water inlet end 111 and the third water inlet end 311 is unified through the main water inlet pipe 5, and the cooling water output to the second water outlet end 212 and the fourth water outlet end 412 is unified through the main water outlet pipe 6. The connections are unified to reduce damage and facilitate connection of the cooling water system. The frame 7 is used for support and is also convenient for changing position for adjustment.

[0063] In a further embodiment, reference is made to Figure 1-3 As shown, a bus module 8 is installed on the other side of the frame 7, and the bus module 8 is electrically connected to the control system of the operation table. The bus module 8 is set to receive the flow value and temperature value of the first flow meter 215 and the second flow meter 415 and feed them back to the control system of the operation table, and the command is input through the control system of the operation table to perform trend management. For example, when the flow value is lower than the warning value, an alarm is given, and the waterway can be cleaned during non-production time to avoid waterway blockage during production and affect production; it can also issue commands to each valve for automatic control, and the control system can adopt existing technology.

[0064] Embodiment 3:

[0065] refer to Figure 1-3 As shown, a pumping device 9 is installed on the other side of the frame 7, and the pumping end of the pumping device 9 is connected to the welding gun electrode water outlet circuit 2. By setting the pumping device 9 to be connected to the welding gun electrode water outlet circuit 2, when the electrode needs to be replaced, the pumping device 9 starts to work, and the pumping device solenoid valve 91 is opened to pump the cooling water in the pipeline to the inside for storage. Combined with compressed air to push the cooling water, the pumping device pumps water for storage, which can achieve a better cooling water cleaning effect and prevent residual cooling water in the welding gun electrode return water circuit.

[0066] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A cooling water recovery device for a welding gun, characterized in that: It comprises a welding gun electrode water inlet circuit (1) and a welding gun electrode water outlet circuit (2), The welding gun electrode water inlet circuit (1) comprises a first water inlet pipe (11) and a first cleaning inlet pipe (12); the first water inlet end (111) of the first water inlet pipe (11) is used to communicate with the water outlet end of the cooling water system; the first water outlet end (112) of the first water inlet pipe (11) is used to communicate with the electrode water inlet of the welding gun; one end of the first cleaning inlet pipe (12) is connected to the inside of the first water inlet pipe (11); the other end of the first cleaning inlet pipe (12) is used to connect to a compressed air source; The welding gun electrode water outlet circuit (2) comprises a first water outlet pipe (21) and a first cleaning outlet pipe (22); the second water inlet end (211) of the first water outlet pipe (21) is used to connect to the electrode water return circuit of the welding gun; the second water outlet end (212) of the first water outlet pipe (21) is used to connect to the water inlet end of the cooling water system; one end of the first cleaning outlet pipe (22) is connected to the inside of the first water outlet pipe (21).

2. The cooling water recovery device for a welding gun according to claim 1, characterized in that: A first control valve (113) is installed on the first water inlet end (111), a second control valve (121) is installed on the first cleaning inlet pipe (12), a third control valve (213) is installed on the second water outlet end (212), and a fourth control valve (221) is installed on the first cleaning outlet pipe (22).

3. The cooling water recovery device for a welding gun according to claim 1, characterized in that: A stop valve (114) is installed on the first water inlet pipe (11), and the stop valve (114) is located between the first cleaning inlet pipe (12) and the first water inlet end (111).

4. The cooling water recovery device for a welding gun according to claim 1, characterized in that: A first one-way valve (214) and a first flow meter (215) are installed on the first water outlet pipe (21); the first one-way valve (214) and the first flow meter (215) are located between the first cleaning outlet pipe (22) and the second water outlet end (212); a fifth control valve (115) is installed on the first water outlet end (112); and a sixth control valve (216) is installed on the second water inlet end (211).

5. A cooling water recovery device for a welding gun according to any one of claims 1 to 4, characterized in that: It also includes a welding gun transformer water inlet circuit (3) and a welding gun transformer water outlet circuit (4), The welding gun transformer water inlet circuit (3) comprises a second water inlet pipe (31) and a second cleaning inlet pipe (32); a third water inlet end (311) of the second water inlet pipe (31) is used to connect to a water outlet end of a cooling water system; a third water outlet end (312) of the second water inlet pipe (31) is used to connect to a transformer water return path of the welding gun; one end of the second cleaning inlet pipe (32) is connected to the interior of the second water inlet pipe (31); and the other end of the second cleaning inlet pipe (32) is used to connect to a compressed air source. The welding gun transformer water outlet circuit (4) comprises a second water outlet pipe (41) and a second cleaning outlet pipe (42); a fourth water inlet end (411) of the second water outlet pipe (41) is used to connect to the transformer water return of the welding gun; a fourth water outlet end (412) of the second water outlet pipe (41) is used to connect to the water inlet end of the cooling water system; and one end of the second cleaning outlet pipe (42) is connected to the interior of the second water outlet pipe (41).

6. The cooling water recovery device for a welding gun according to claim 5, characterized in that: A seventh control valve (313) is installed on the third water inlet end (311), an eighth control valve (321) is installed on the second cleaning inlet pipe (32), a ninth control valve (413) is installed on the fourth water outlet end (412), and a tenth control valve (421) is installed on the second cleaning outlet pipe (42).

7. The cooling water recovery device for a welding gun according to claim 5, characterized in that: A second one-way valve (414) and a second flow meter (415) are installed on the second water outlet pipe (41); the second one-way valve (414) and the second flow meter (415) are located between the second cleaning outlet pipe (42) and the fourth water outlet end (412); an eleventh control valve (315) is installed on the third water outlet end (312); and a twelfth control valve (416) is installed on the fourth water inlet end (411).

8. The cooling water recovery device for a welding gun according to claim 5, characterized in that: The first water inlet end (111) and the third water inlet end (311) are respectively connected to the water outlet end of the cooling water system through a main water inlet pipe (5); the second water outlet end (212) and the fourth water outlet end (412) are respectively connected to the water inlet end of the cooling water system through a main water outlet pipe (6); the welding gun electrode water inlet circuit (1), the welding gun electrode water outlet circuit (2), the welding gun transformer water inlet circuit (3), the welding gun transformer water outlet circuit (4), the main water inlet pipe (5), and the main water outlet pipe (6) are all installed on the same side of the frame (7).

9. The cooling water recovery device for a welding gun according to claim 8, characterized in that: A bus module (8) is installed on the other side of the frame (7), and the bus module (8) is electrically connected to the operating console control system.

10. The cooling water recovery device for a welding gun according to claim 8, characterized in that: A water pumping device (9) is installed on the other side of the frame (7), and a water pumping end of the water pumping device (9) is connected to the welding gun electrode water outlet circuit (2).

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