Water cooling supply device of laser welding device

Abstract

The utility model discloses a water-cooling supply device of a laser welder, and relates to the technical field of welding water supply. The device specifically comprises a heat exchange piece, a freezing pipe and a cold water pipe. The freezing pipe is connected to a first heat exchange channel of the heat exchange piece. The cold water pipe is connected to the second heat exchange channel of the heat exchange piece, and the cold water pipe exchanges heat with a medium flowing in the freezing pipe in the first heat exchange channel and the second heat exchange channel; and the cold water pipe subjected to heat exchange is at least connected with two groups of laser welders. The cold water pipe and the freezing pipe are connected to the two heat exchange channels of the heat exchange piece respectively, chilled water and cold water achieve heat exchange in the first heat exchange channel and the second heat exchange channel of the plate heat exchanger, and cooled water can flow to the multiple sets of laser welders so as to meet use of the multiple sets of laser welders. An independent cold water pipeline and an independent heat dissipation pipeline do not need to be arranged for different single laser welders, the requirement that the multiple laser welders manage chilled water and cooling water in a unified mode is met, and the overhauling steps of the multiple laser welders are simplified.

Description

Technical Field

[0001] This utility model relates to the field of welding water supply technology, and in particular to a water-cooling supply device for a laser welder. Background Technology

[0002] A laser welder water-cooling supply unit is a water-cooling system used in laser welding equipment. Its main function is to remove the heat generated during the laser welding process by circulating cooling water, thereby maintaining the normal operation and stable performance of the equipment. In the many processes of battery production, the assembly line is one of the most critical bottleneck processes affecting the overall production efficiency. To ensure the normal operation of the laser welder, water cooling is typically used to lower its temperature.

[0003] In existing technologies, laser welding machines use stand-alone water-cooling supply equipment, meaning each laser welding machine is equipped with a water-cooled chiller. The stand-alone chiller provides the necessary cooling water to the laser welding machine. After the cooling water exchanges heat and heats up in the laser welding machine, it flows back to the chiller, where it exchanges heat to a suitable temperature under the action of the refrigerant. This process is repeated, and the refrigerant in the chiller is then cooled by an external cold source before being used.

[0004] However, in the above scheme, in order to ensure the use of single laser welders, the factory needs to be equipped with multiple laser welders. Multiple laser welders cannot be managed and interlocked in a unified manner, which increases the complexity of external cold source pipelines and piping, makes it impossible to uniformly adjust and maintain the external cold source, and increases the number of maintenance required for single laser welders. At the same time, the compressors and various pipelines required for single laser welders have high energy consumption, a large number of equipment, and a large footprint, which cannot meet the needs of a large number of laser welders.

[0005] Therefore, this application aims to solve the problem of the inability to uniformly manage chilled water and cooling water in several laser welding machines, thereby increasing the number of laser welding machines that need to be inspected. Utility Model Content

[0006] The main purpose of this utility model is to provide a water-cooling supply device for laser welders, which aims to meet the needs of unified management of chilled water and cooling water for several laser welders and simplify the maintenance steps of several laser welders.

[0007] To achieve the above objectives, this utility model proposes a water-cooling supply device for a laser welder, comprising:

[0008] Heat exchanger;

[0009] A refrigeration tube is connected to the first heat exchange channel of the heat exchanger; and

[0010] A cold water pipe is connected to the second heat exchange channel of the heat exchanger. The cold water pipe exchanges heat with the medium flowing in the refrigeration pipe in the first heat exchange channel and the second heat exchange channel. The cold water pipe after heat exchange is connected to at least two sets of laser welders.

[0011] In the above scheme, chilled water flows into the first heat exchange channel of the plate heat exchanger through chilled pipes, and cold water flows into the second heat exchange channel of the plate heat exchanger through cold water pipes. The chilled water and cold water exchange heat in the first and second heat exchange channels of the plate heat exchanger to reduce the water temperature in the cold water pipes. After the water in the cold water pipes is cooled down, it can flow to multiple sets of laser welders to meet the needs of multiple sets of laser welders. There is no need to set up separate cold water pipes and heat dissipation pipes for different individual laser welders. At the same time, the cold water pipes of multiple sets of laser welders are linked together, which can achieve the purpose of centralized management and maintenance.

[0012] Furthermore, the cold water pipe includes a cold water inlet pipe and a cold water outlet pipe connected to the inlet and outlet ends of the second heat exchange channel, and the cold water inlet pipe and the cold water outlet pipe are respectively connected to the return end and the inlet end of the laser welder.

[0013] Furthermore, a pump body is installed on the cold water inlet pipe, which drives the cold water to form a circulation loop in the heat exchanger, the cold water pipe, and the laser welder. When the laser welder is operating, the cold water outlet pipe supplies it with cold water. The used cold water flows back to the cold water inlet pipe through the loop and then returns to the second heat exchange channel at the heat exchanger, thus forming a circulation loop to meet the cold water recycling needs of the laser welder. The arrows in the figure indicate the directions of water inlet and outlet for the laser welder.

[0014] Furthermore, the pump body is provided with at least two sets, which are connected in parallel to the cold water pipe. If one pump set fails, the remaining pump sets can continue to operate, ensuring the normal operation of the cold water pipe and facilitating the repair of the damaged pump body.

[0015] Furthermore, the chilled pipe is equipped with a three-way valve at the front end of the first heat exchange channel, and a temperature sensor is also installed on the chilled water outlet pipe. The temperature sensor is interlocked with the three-way valve to adjust the opening degree of the three-way valve. The temperature sensor measures the temperature of the cooled water in the outlet pipe, and controls the opening degree of the three-way valve, thereby controlling the chilled water flow rate of the plate heat exchanger and controlling the temperature of the cooling water delivered after heat exchange.

[0016] Furthermore, a filter element is also provided on the cold water inlet pipe, and the filter element is located at the front end of the pump body. Preferably, the filter element is a security filter, which is used to remove particulate impurities present in the circulating cooling water to ensure the cleanliness of the delivered cooling water.

[0017] Furthermore, pressure detection elements are provided at both ends of the filter element. These pressure detection elements can be pressure gauges; the pressure difference can be used to determine the degree of filter element contamination, allowing for cleaning or replacement of the filter element. The security filter is equipped with a bypass pipe, allowing for temporary use without shutting down the system during cleaning or filter element replacement.

[0018] Furthermore, the front and rear ends of the filter element are connected to the same auxiliary filter pipe. This auxiliary filter pipe can be used as a bypass, allowing for temporary use without shutting down the system during cleaning or filter replacement, thus protecting the filter element and dispersing pressure at the filter element.

[0019] Furthermore, the cold water inlet pipe is also connected to a water storage device. Preferably, the water storage device is a water replenishment tank, located above the cold water pipe and connected via a vertically arranged water replenishment pipe between them. The connection is equipped with a manual ball valve and a check valve; during operation, the valves are kept open to replenish water to the cold water pipe. The water replenishment tank contains a float valve connected to the plant's pure water supply pipeline to maintain the pure water level in the tank. The water replenishment tank also features a level display and a water tank cleaning and draining pipeline.

[0020] Furthermore, it also includes an electronic control component, which is electrically connected to at least the temperature sensor and the three-way valve.

[0021] The above technical solution has the following advantages:

[0022] This invention connects the chilled water pipe and the refrigeration pipe to the two heat exchange channels of the heat exchanger respectively. The chilled water and the refrigerated water exchange heat in the first and second heat exchange channels of the plate heat exchanger to reduce the water temperature in the chilled water pipe. The cooled water can then flow to multiple sets of laser welders to meet the needs of multiple sets of laser welders. There is no need to set up separate chilled water pipes and heat dissipation pipes for different individual laser welders. This allows for unified management of chilled water and cooling water for several laser welders and simplifies the maintenance steps for several laser welders. Attached Figure Description

[0023] The present invention will now be described in detail with reference to specific embodiments and accompanying drawings, wherein:

[0024] Figure 1 This is a schematic diagram of the process structure of this utility model;

[0025] Figure 2 This is a partial structural schematic diagram of the present invention;

[0026] Figure 3 This is a schematic diagram of the piping structure of this utility model.

[0027] In the diagram: 1. Three-way valve; 2. Heat exchanger; 3. Pump body; 31. Drive auxiliary pipe; 4. Filter; 41. Pressure detection device; 42. Filter auxiliary pipe; 5. Refrigeration pipe; 51. Refrigeration inlet pipe; 52. Refrigeration outlet pipe; 6. Cold water pipe; 61. Cold water inlet pipe; 62. Cold water outlet pipe; 7. Electrical control components; 8. Water storage unit. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the following specific embodiments are only used to explain this utility model and do not constitute a limitation on this utility model.

[0029] like Figure 1 As shown, a water-cooled supply device for a laser welder includes a heat exchanger 2, a freezing pipe 5, and a cold water pipe 6. The freezing pipe 5 is connected to a first heat exchange channel of the heat exchanger 2; the cold water pipe 6 is connected to a second heat exchange channel of the heat exchanger 2, and the cold water pipe 6 exchanges heat with the medium flowing in the freezing pipe 5 in the first and second heat exchange channels; the cold water pipe 6, after heat exchange, is connected to at least two sets of laser welders. Among them, the heat exchanger 2 can be a plate heat exchanger, shell and tube heat exchanger, spiral plate heat exchanger, plate-fin heat exchanger, etc. This application takes the use of a plate heat exchanger as an example. The other heat exchangers are similar. Chilled water flows into the first heat exchange channel of the plate heat exchanger from the chilled pipe 5, and cold water flows to the second heat exchange channel of the plate heat exchanger from the cold water pipe 6. Chilled water and cold water exchange heat in the first and second heat exchange channels of the plate heat exchanger to reduce the water temperature in the cold water pipe 6. After the water in the cold water pipe 6 is cooled down, it can flow to multiple sets of laser welders to meet the needs of multiple sets of laser welders. There is no need to set up independent cold water pipes 6 and heat dissipation pipes for different single laser welders. At the same time, the cold water pipes 6 of multiple sets of laser welders are linked together, which can achieve the purpose of centralized management and maintenance.

[0030] like Figure 1 and Figure 3 As shown, the cold water pipe 6 includes a cold water inlet pipe 61 and a cold water outlet pipe 62 connected to the inlet and outlet ends of the second heat exchange channel. The cold water inlet pipe 61 and the cold water outlet pipe 62 are respectively connected to the return water end and the inlet water end of the laser welder. When the laser welder is working, the cold water outlet pipe 62 provides it with cold water. The used cold water flows back to the cold water inlet pipe 61 through the loop and then flows back to the second heat exchange channel at the heat exchanger 2 through the cold water inlet pipe 61, thus forming a circulation loop to meet the cold water circulation needs of the laser welder. The arrows in the figure indicate the direction of the water inlet and return of the laser welder.

[0031] like Figure 1 and Figure 2As shown, a pump body 3 is provided on the cold water inlet pipe 61. The pump body 3 is used to drive the cold water to form a circulation loop between the heat exchanger 2, the cold water pipe 6, and the laser welder. The pump body 3 can be a pipeline pump, a centrifugal pump, a magnetic drive pump, etc., to drive the heat exchanger 2 and the laser welder to form a circulation loop. As a preferred embodiment of this application, at least two sets of pump bodies 3 are provided and connected in parallel on the cold water pipe 6. When two sets are provided, one of them serves as a drive auxiliary pipe 31 connected to both ends of the pump body 3. When the pipeline where the pump body 3 is located fails, the pump body 3 on the drive auxiliary pipe 31 can continue to work to ensure the normal operation of the cold water pipe 6 and facilitate the repair of the damaged pump body 3. Multiple sets of pump bodies 3 can also be turned on at the same time to increase the flow rate of the cold water.

[0032] like Figure 1 As shown, in one embodiment of this application, the chilled pipe 5 is further provided with a three-way valve 1 at the front end of the first heat exchange channel, and a temperature sensor is further provided on the chilled water outlet pipe 62. The temperature sensor is interlocked with the three-way valve 1 to adjust the opening degree of the three-way valve 1. The temperature sensor is used to measure the temperature of the water in the chilled water outlet pipe 62 after cooling. The valve opening degree of the three-way valve 1 is controlled by the temperature sensor, thereby controlling the chilled water flow rate of the plate heat exchanger, so as to control the cooling water delivery temperature after heat exchange. The chilled pipe 5 includes a chilled inlet pipe 51 and a chilled outlet pipe 52 respectively installed at the inlet and outlet of the first heat exchange channel. The three-way valve 1 is installed on the chilled inlet pipe 51. The opening degree of the three-way valve 1 can adjust the flow rate of the chilled inlet pipe 51. Several temperature sensors, pressure gauges and flow meters can be installed on the chilled inlet pipe 51 and the chilled outlet pipe 52. Several temperature sensors, pressure gauges and flow meters are also installed on the chilled water inlet pipe 61 and the chilled water outlet pipe 62.

[0033] A filter element 4 is also provided on the cold water inlet pipe 61. The filter element 4 is located at the front end of the pump body 3. The filter element 4 is used to remove particulate impurities present in the circulating cooling water to ensure the cleanliness of the cooling water. The filter element 4 is preferably a security filter. In the preferred embodiment of this application, the front and rear ends of the filter element 4 are connected to the same auxiliary filter pipe 42. The auxiliary filter pipe 42 can be used as a bypass. It can be used temporarily without stopping the machine when cleaning or replacing the filter element, which protects the filter element 4 and disperses the pressure at the filter element 4. Furthermore, pressure detection elements 41 are provided at both the front and rear ends of the filter element 4. The pressure detection elements 41 can be pressure gauges. The degree of filter element contamination can be judged based on the pressure difference, and the filter element can be cleaned or replaced. The security filter is provided with a bypass pipe, which can be used temporarily without stopping the machine when cleaning or replacing the filter element.

[0034] like Figure 1As shown, the cold water inlet pipe 61 is also connected to a water storage device 8, which is preferably a water replenishment tank. The water replenishment tank is located above the cold water pipe 6 and is connected by a water replenishment pipe arranged vertically between the two. The connection is equipped with a manual ball valve and a check valve. During operation, the valves are kept open to replenish water to the cold water pipe 6. The water replenishment tank is equipped with a float valve connected to the pure water supply pipeline of the plant area to maintain the pure water level in the tank. The water replenishment tank is equipped with a level display and a water tank cleaning and draining pipeline.

[0035] like Figure 1 and Figure 2 As shown, this application also includes an electrical control component 7, which is electrically connected to at least a temperature sensor and a three-way valve 1. In this application, the electrical control component 7 is an electrical control cabinet, which communicates with the central control system. The electrical control cabinet is electrically connected to the three-way valve 1, temperature sensor, pressure sensor, pump body 3, pressure gauge, etc., and is used to detect various parameters on the cold water pipe 6 and the chilled water pipe 5, such as pressure, temperature, and flow rate, so as to ensure the normal use of the water in the laser welder.

[0036] In use, the heat exchanger 2 and several laser welders are connected by a cold water pipe 6 to form a circulation loop. A temperature sensor is also installed on the cold water outlet pipe 62 to detect the water temperature of the cold water outlet pipe 62 and interlock the water temperature with the three-way valve 1 to control the valve opening of the three-way valve 1, thereby controlling the chilled water flow of the plate heat exchanger and controlling the temperature of the cooling water delivered after heat exchange. The water supply tank provides a water loop for the cold water pipe 6, thereby enabling water supply to the entire circulation pipeline.

[0037] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A water-cooling supply device for a laser welder, characterized in that, include: Heat exchanger (2); A refrigeration tube (5) is connected to the first heat exchange channel of the heat exchanger (2); as well as A cold water pipe (6) is connected to the second heat exchange channel of the heat exchanger (2). The medium flowing in the cold water pipe (6) and the freezing pipe (5) exchange heat in the first heat exchange channel and the second heat exchange channel. The cold water pipe (6) after heat exchange is connected to at least two sets of laser welders.

2. The water-cooling supply device for the laser welder as described in claim 1, characterized in that, The cold water pipe (6) includes a cold water inlet pipe (61) and a cold water outlet pipe (62) connected to the inlet and outlet ends of the second heat exchange channel, respectively. The cold water inlet pipe (61) and the cold water outlet pipe (62) are connected to the return end and the inlet end of the laser welder.

3. The water-cooling supply device for the laser welder as described in claim 2, characterized in that, A pump body (3) is provided on the cold water inlet pipe (61), and the pump body (3) is used to drive the cold water to form a circulation loop in the heat exchanger (2), the cold water pipe (6) and the laser welder.

4. The water-cooling supply device for the laser welder as described in claim 3, characterized in that, The pump body (3) is provided with at least two sets, which are connected in parallel to the cold water pipe (6).

5. The water-cooling supply device for the laser welder as described in claim 2, characterized in that, The refrigeration pipe (5) is also provided with a three-way valve (1) at the front end of the first heat exchange channel, and a temperature sensor is also provided on the cold water outlet pipe (62). The temperature sensor is interlocked with the three-way valve (1) to adjust the opening degree of the three-way valve (1).

6. The water-cooling supply device for the laser welder as described in claim 4, characterized in that, The cold water inlet pipe (61) is also provided with a filter element (4), which is located at the front end of the pump body (3).

7. The water-cooling supply device for a laser welder as described in claim 6, characterized in that, Pressure detection elements (41) are provided at both the front and rear ends of the filter element (4).

8. The water-cooling supply device for a laser welder as described in claim 6, characterized in that, The front and rear ends of the filter element (4) are connected to the same filter auxiliary tube (42).

9. The water-cooling supply device for a laser welder as described in claim 2 or 3, characterized in that, The cold water inlet pipe (61) is also connected to a water storage device (8).

10. The water-cooling supply device for a laser welder as described in claim 5, characterized in that, It also includes an electronic control component (7), which is electrically connected to at least the temperature sensor and the three-way valve (1).

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