Spot welding device with cooling assembly

Abstract

The utility model relates to the field of welding equipment, in particular to a spot welding device with a cooling assembly, which comprises a device body, the device body comprises a welding seat, a welding needle connected with the welding seat and the cooling assembly, the cooling assembly comprises a cooling channel arranged in the welding seat and used for cooling liquid to flow, and the cooling liquid passes through the cooling channel in the welding seat. The cooling channel is formed in the welding seat, the welding seat and the welding needle connected with the welding seat are cooled through cooling liquid, the working temperature of the welding seat and the working temperature of the welding needle are effectively reduced, and impedance increase and welding strength reduction caused by high temperature are avoided. The problems that according to existing spot welding equipment, the temperature rises due to long-time work of a welding needle, impedance is increased, and then the welding strength is reduced are solved.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment, specifically a spot welding device with a cooling component. Background Technology

[0002] In the battery manufacturing process, the battery core needs to be connected to the battery casing so that the anode of the battery core is connected to the external circuit through the casing. When the battery is connected to the circuit, electrons can flow out from the anode, flow back to the cathode of the battery through the external circuit, thus forming a closed loop and enabling the battery to supply power. The anode of the battery casing and the battery core are usually connected by spot welding. However, in continuous production, the spot welding needle and spot welding seat will heat up due to continuous long-term operation, which will increase the resistance of the spot welding needle and reduce the welding strength. Therefore, it is necessary to develop a spot welding device with a cooling component to solve the problem of reduced welding strength caused by the heat generated by the spot welding needle and spot welding seat during continuous long-term operation. Utility Model Content

[0003] To address the aforementioned problem of reduced welding strength caused by overheating from continuous long-term operation of existing spot welding needles and spot welding sockets, the technical solution adopted by this utility model is as follows:

[0004] A spot welding apparatus with a cooling component includes a device body, the device body including a welding socket, a welding needle connected to the welding socket, and a cooling component. The cooling component includes a cooling channel disposed in the welding socket for the flow of coolant. The coolant passes through the cooling channel in the welding socket to reduce the temperature of the welding socket and the welding needle.

[0005] Furthermore, the welding base is provided with mounting holes that mate with the welding needle, and the cooling channel includes an inlet and an outlet respectively located on opposite sides of the welding base, and a cooling section connecting the inlet and the outlet.

[0006] Furthermore, the welding base includes a welding base block, one side of which is provided with a mounting groove for mounting the welding needle. Two welding base blocks are connected relative to each other so that the two mounting grooves form the mounting hole. The welding base block is provided with a connecting hole, and fasteners pass through the connecting holes located on the two welding base blocks in sequence to fix the two welding base blocks together. The cooling channel is located inside the welding base block, and the liquid inlet and liquid outlet are located on opposite sides of the welding base block, respectively.

[0007] Furthermore, the cooling section includes a first cooling section and a second cooling section. The first cooling section is elongated and the second cooling section is arc-shaped. Multiple first cooling sections and second cooling sections are alternately connected so that the cooling section extends in an arc shape. The first cooling section and the second cooling section located at both ends of the cooling section are respectively connected to the liquid inlet and the liquid outlet.

[0008] Furthermore, the liquid inlet and liquid outlet are located on opposite sides of the welding base in the horizontal direction.

[0009] Furthermore, the liquid inlet is located on the lower side of the welding base in the vertical direction, and the liquid outlet is located on the upper side of the welding base in the vertical direction.

[0010] Furthermore, the device body also includes a support and a lifting assembly connected to the support. The lifting assembly includes a fixed seat fixedly connected to the support, a driver connected to the fixed seat, a telescopic rod connected to the driver, and a movable seat connected to the telescopic rod. The movable seat is fixedly connected to the welding seat, and the driver can control the telescopic rod's extension and retraction.

[0011] Furthermore, the cooling assembly includes an inlet pipe and an outlet pipe respectively connected to both ends of the cooling channel, and a cooling device connected to the inlet pipe and the outlet pipe. The inlet and outlet are respectively connected to the inlet pipe and the outlet pipe. The cross-sectional shape of the inlet is funnel-shaped. The inlet gradually narrows from the outside of the welding base to the inside of the welding base. The diameter of the inlet pipe is larger than the diameter of the cooling part.

[0012] Furthermore, the mounting hole penetrates the welding base in the vertical direction, and the welding needle includes a heat dissipation part connected to the mounting hole and a limiting part connected to the heat dissipation part. The limiting part is located on the upper side of the welding base, and the diameter of the limiting part is larger than the diameter of the mounting hole.

[0013] Furthermore, each of the two welding blocks is provided with at least one cooling channel.

[0014] The beneficial effects of this utility model are as follows:

[0015] This invention sets up a cooling channel inside the welding socket and uses coolant to cool the welding socket and the welding needle connected to the welding socket. This effectively reduces the working temperature of the welding socket and the welding needle, avoids the increase in impedance and the decrease in welding strength caused by high temperature, and solves the problem that the temperature of the welding needle rises due to long-term operation of the existing spot welding equipment, which leads to increased impedance and thus reduced welding strength. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the structure of a spot welding device with a cooling component according to the present invention.

[0017] Figure 2 This is a schematic diagram of the welding base of a spot welding device with a cooling component according to the present invention.

[0018] Figure 3 This is a schematic diagram of the structure of a spot welding device with a cooling component according to the present invention.

[0019] Figure 4 This is a schematic diagram showing the connection between the welding needle and the welding seat of a spot welding device with a cooling component according to this utility model.

[0020] Figure 5 This is a schematic diagram of the welding base of a spot welding device with a cooling component according to the present invention.

[0021] Figure 6 This is a schematic diagram of the structure of a welding base block of a spot welding device with a cooling component according to the present invention.

[0022] Figure 7 This is a cross-sectional view of the welding base of a spot welding device with a cooling component according to the present invention.

[0023] Figure 8 This is a schematic diagram of the welding base of a spot welding device with a cooling component according to the present invention.

[0024] Figure 9 This is a cross-sectional view of the welding base of a spot welding device with a cooling component according to the present invention. Detailed Implementation

[0025] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings. The described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0026] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0027] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0028] Please see Figures 1 to 9 The present invention relates to a spot welding device with a cooling component, comprising a device body 1, wherein the device body 1 includes a welding base 11, a welding needle 12 connected to the welding base 11, and a cooling component 13. The cooling component 13 includes a cooling channel 131 disposed within the welding base 11 for the flow of coolant. The coolant passes through the cooling channel 131 within the welding base 11 to reduce the temperature of the welding base 11 and the welding needle 12.

[0029] In this invention, the welding needle 12 is a key component in the welding operation, responsible for converting electrical energy into heat energy to achieve welding. The welding base 11 is a component used to fix and closely contact the welding needle 12. Furthermore, by providing a cooling channel 131 for coolant circulation in the welding base 11, the coolant can absorb and remove the heat generated by the welding base 11 and the welding needle 12, keeping the temperature of the welding base 11 and the welding needle 12 stable. This prevents the welding base 11 and the welding needle 12 from overheating due to prolonged continuous operation, which would increase the resistance of the welding needle 12 and thus reduce the welding strength. Preferably, the welding base 11 is made of a metal with high thermal conductivity, such as copper alloy or aluminum alloy. By using a metal with high thermal conductivity as the material of the welding base 11, the heat on the welding needle 12 can be efficiently transferred to the welding base 11, and the heat of the welding base 11 can be removed by the coolant, thereby reducing the working temperature of the welding base 11 and the welding needle 12.

[0030] Furthermore, the welding base 11 is provided with a mounting hole 111 that mates with the welding needle 12, and the cooling channel 131 includes an inlet 1311 and an outlet 1312 respectively provided on opposite sides of the welding base 11, and a cooling section 1313 connecting the inlet 1311 and the outlet 1312.

[0031] In this utility model, the mounting hole 111 is a part on the welding base 11 for mounting the welding needle 12. The size and shape of the mounting hole 111 match the welding needle 12 to ensure that the welding needle 12 can be firmly and accurately mounted on the welding base 11. Furthermore, the welding base 11 is provided with an inlet 1311 and an outlet 1312 on opposite sides, and the welding base 11 is provided with a cooling section 1313 inside, which connects the inlet 1311 and the outlet 1312. The cooling section 1313 is the main part for heat exchange between the coolant in the cooling channel 131 and the welding base 11. The coolant flows into the interior of the welding base 11 from the inlet 1311, absorbs heat through the cooling section 1313, and flows out from the outlet 1312.

[0032] Furthermore, the welding base 11 includes a welding base block 112. One side of the welding base block 112 is provided with a mounting groove 1121 for mounting the welding needle 12. Two welding base blocks 112 are connected to each other so that the two mounting grooves 1121 form the mounting hole 111. The welding base block 112 is provided with a connecting hole 1122. Fasteners pass through the connecting holes 1122 located in the two welding base blocks 112 in sequence so that the two welding base blocks 112 are fixedly connected. The cooling channel 131 is located in the welding base block 112. The liquid inlet 1311 and the liquid outlet 1312 are respectively located on opposite sides of the welding base block 112.

[0033] In this invention, the welding base 11 is formed by two welding base blocks 112 connected relative to each other. Each welding base block 112 has a mounting groove 1121 on one side. When the two welding base blocks 112 are connected, the two mounting grooves 1121 combine to form a mounting hole 111 for mounting the welding needle 12. Further, the welding base block 112 has a connecting hole 1122. The two welding base blocks 112 are fixedly connected by fasteners passing through the connecting hole 1122. Specifically, when connecting the welding base 11 and the welding needle 12, the... The welding needle 12 is placed in the mounting groove 1122 of the welding base block 112. Another welding base block 112 is connected to the previous welding base block 112. Fasteners pass through the connecting hole 1122 to fix the two welding base blocks 112 together and fix the welding needle 12. The shape and size of the mounting groove 1121 should match the shape and size of the welding needle 12 to ensure a tight fit between the welding needle 12 and the welding base 11, so that the heat of the welding needle 12 can be effectively transferred to the welding base 11, thereby improving the cooling effect.

[0034] Furthermore, the cooling section 1313 includes a first cooling section 13131 and a second cooling section 13132. The first cooling section 13131 is elongated, and the second cooling section 13132 is arc-shaped. Multiple first cooling sections 13131 and second cooling sections 13132 are alternately connected so that the cooling section 1313 extends in an arc shape. The first cooling section 13131 and the second cooling section 13132 located at both ends of the cooling section 1313 are respectively connected to the liquid inlet 1311 and the liquid outlet 1312.

[0035] In this invention, the cooling section 1313 includes a first cooling section 13131 and a second cooling section 13132. By designing the first cooling section 13131 as an elongated shape and the second cooling section 13132 as an arc shape, the elongated design of the first cooling section 13131 can increase the flow distance of the coolant in the welding base 11, thereby extending the heat exchange time. The arc-shaped design of the second cooling section 13132 can reduce the resistance of the coolant flow and avoid pressure loss caused by sharp turns. Furthermore, by setting multiple alternating connections of the first cooling section 13131 and the second cooling section 13132 to form an arc-shaped cooling section 1313, the contact area between the coolant and the high-temperature area inside the welding base 11 is further increased, further improving the heat exchange efficiency.

[0036] Furthermore, the liquid inlet 1311 and the liquid outlet 1312 are located on opposite sides of the welding base 11 in the horizontal direction.

[0037] This invention, by setting the liquid inlet 1311 and the liquid outlet 1312 on opposite sides of the welding base 11 in the horizontal direction, allows the coolant to pass through the entire welding base 11, effectively carrying away the heat from all parts of the welding base 11 evenly, avoiding the problem of localized overheating caused by the concentrated flow of coolant into a certain area, and effectively improving the cooling effect.

[0038] Furthermore, the liquid inlet 1311 is located on the lower side of the welding base 11 in the vertical direction, and the liquid outlet 1312 is located on the upper side of the welding base 11 in the vertical direction.

[0039] In this invention, the inlet 1311 is located on the lower side of the welding base 11, and the coolant enters the welding base 11 from the bottom. The outlet 1312 is located on the upper side of the welding base 11, and the coolant flows out from the top of the welding base 11 after heat exchange. This design can utilize the thermal expansion and contraction effect to reduce the density of the coolant after heat exchange, naturally forming an upward flow trend, which enhances the circulation efficiency of the coolant and reduces the energy consumption required for pumping. In addition, the coolant flows from bottom to top, which can more evenly absorb the heat in the welding base 11, further improving the overall cooling effect.

[0040] Furthermore, the device body 1 also includes a support 14 and a lifting assembly 15 connected to the support 14. The lifting assembly 15 includes a fixed seat 151 fixedly connected to the support 14, a driver 152 connected to the fixed seat 151, a telescopic rod 153 connected to the driver 152, and a movable seat 154 connected to the telescopic rod 153. The movable seat 154 is fixedly connected to the welding seat 11, and the driver 152 can control the telescopic movement of the telescopic rod 153.

[0041] In this invention, the support 14 serves as the basic support structure for the entire spot welding device, providing an installation platform for the lifting assembly 15 and ensuring the overall stability and reliability of the device. The lifting assembly 15 controls the vertical movement of the welding seat 11 and includes a fixed seat 151, a driver 152, a telescopic rod 153, and a movable seat 154. The driver 152 controls the extension and retraction of the telescopic rod 153, thereby driving the movable seat 154 and the welding seat 11 to achieve precise height adjustment. When the spot welding device is working, the driver 152 drives the telescopic rod 153 to extend, so that the welding needle 12 gradually approaches the workpiece until it contacts the workpiece, thereby achieving welding of the workpiece. Therefore, the lifting assembly 15 enables the spot welding device to flexibly adjust its height and can be controlled by software to achieve automatic operation of the spot welding device, effectively improving the automation of the spot welding device while ensuring the consistency and stability of the welding.

[0042] Furthermore, the cooling assembly 13 includes an inlet pipe 132 and an outlet pipe 133 connected to both ends of the cooling channel 131, and a cooling device connected to the inlet pipe 132 and the outlet pipe 133. The inlet port 1311 and the outlet port 1312 are connected to the inlet pipe 132 and the outlet pipe 133, respectively. The inlet port 1311 has a funnel-shaped cross-section and gradually narrows from the outside of the welding base 11 to the inside of the welding base 11. The diameter of the inlet pipe 132 is larger than the diameter of the cooling section 1313.

[0043] In this invention, the inlet pipe 132 and outlet pipe 133 are respectively connected to the inlet ports 1311 and outlet ports 1312 at both ends of the cooling channel 13, forming a complete coolant circulation path. The cooling device provides coolant to the cooling channel 13 through the inlet pipe 132 and outlet pipe 133. Specifically, the cooling device is equipped with a water pump and a heat exchanger. The inlet and outlet of the water pump are respectively connected to the outlet pipe 133 and the heat exchanger, and the outlet of the heat exchanger is connected to the inlet pipe 132. Specifically, when the coolant absorbs the heat from the welding base 11... After the heat is released, the coolant flows into the outlet pipe 133 through the outlet port 1312 of the welding base 11. The outlet pipe 133 delivers the high-temperature coolant to the inlet of the water pump. The water pump pressurizes the coolant and sends it into the inlet of the heat exchanger. In the heat exchanger, the high-temperature coolant exchanges heat with an external cooling medium such as air or cold water, and the temperature decreases. The cooled coolant flows from the outlet of the heat exchanger into the inlet pipe 132 and enters the interior of the welding base 11 through the inlet port 1312 of the welding base 11. The design of the cooling device effectively improves the efficiency and reliability of the cooling system.

[0044] Furthermore, the inlet 1311 is designed as a funnel shape and gradually narrows from the outside to the inside of the welding base 11, making the transition of coolant from the inlet pipe 132 to the cooling section 1313 smoother, reducing turbulence and pressure loss, effectively guiding coolant into the cooling channel 131, reducing flow resistance and improving flow stability. By designing the diameter of the inlet pipe 132 to be larger than the diameter of the cooling section 1313, the coolant entering the cooling section 1313 can form a natural pressurization, reducing the energy consumption of pumping and further improving the flow efficiency of coolant.

[0045] Furthermore, the mounting hole 111 penetrates the solder pad 11 in the vertical direction, and the soldering pin 12 includes a heat dissipation part 121 connected to the mounting hole 111 and a limiting part 122 connected to the heat dissipation part 121. The limiting part 122 is located on the upper side of the solder pad 11, and the diameter of the limiting part 122 is larger than the diameter of the mounting hole 111.

[0046] In this invention, the heat dissipation part 121 is connected to the mounting hole 111 and is responsible for conducting the heat generated by the welding needle 12 during the welding process to the welding base 11. The welding needle 12 is also provided with a limiting part 122 connected to the heat dissipation part 121, and its diameter is set to be larger than the diameter of the mounting hole 111, so that it can play the role of positioning the welding needle 12, preventing the welding needle 12 from being over-inserted, effectively improving the connection stability and reliability between the welding needle 12 and the welding base 11, and ensuring that the heat of the welding needle 12 can be effectively transferred to the welding base 11, achieving the effect of efficient heat dissipation.

[0047] Furthermore, each of the two welding base blocks 112 is provided with at least one cooling channel 131.

[0048] In this invention, by providing at least one cooling channel 131 in each of the two welding base blocks 112, the coolant can further cover the main high-temperature area of ​​the welding base 11, and the cooling channel 131 can be more evenly distributed in the welding base 11, making the overall temperature of the welding base 11 more uniform, reducing the risk of local overheating, and effectively improving the cooling effect.

[0049] Example 1

[0050] The device body 1 includes a welding base 11, a welding needle 12 connected to the welding base 11, and a cooling assembly 13. The cooling assembly 13 includes a cooling channel 131 provided in the welding base 11 for the flow of coolant. The coolant passes through the cooling channel 131 in the welding base 11 to reduce the temperature of the welding base 11 and the welding needle 12.

[0051] Example 2

[0052] Example 2, based on Example 1, also has the following implementation method:

[0053] The welding base 11 is provided with a mounting hole 111 that is connected to the welding needle 12. The cooling channel 131 includes an inlet 1311 and an outlet 1312 respectively provided on opposite sides of the welding base 11, and a cooling section 1313 connecting the inlet 1311 and the outlet 1312.

[0054] Example 3

[0055] Example 3, based on Example 2, also has the following implementation method:

[0056] The welding base 11 includes a welding base block 112. One side of the welding base block 112 is provided with a mounting groove 1121 for mounting the welding needle 12. Two welding base blocks 112 are connected to each other so that the two mounting grooves 1121 form the mounting hole 111. The welding base block 112 is provided with a connecting hole 1122. Fasteners pass through the connecting holes 1122 located in the two welding base blocks 112 in sequence so that the two welding base blocks 112 are fixedly connected. The cooling channel 131 is located in the welding base block 112. The liquid inlet 1311 and the liquid outlet 1312 are respectively located on opposite sides of the welding base block 112.

[0057] Example 4

[0058] Example 4, based on Example 2, also has the following implementation method:

[0059] The cooling section 1313 includes a first cooling section 13131 and a second cooling section 13132. The first cooling section 13131 is elongated, and the second cooling section 13132 is arc-shaped. Multiple first cooling sections 13131 and second cooling sections 13132 are alternately connected so that the cooling section 1313 extends in an arc shape. The first cooling section 13131 and the second cooling section 13132 located at both ends of the cooling section 1313 are respectively connected to the liquid inlet 1311 and the liquid outlet 1312.

[0060] Example 5

[0061] Example 5, based on Example 2, also has the following implementation method:

[0062] The liquid inlet 1311 and the liquid outlet 1312 are located on opposite sides of the welding base 11 in the horizontal direction.

[0063] Example 6

[0064] Example 6, based on Example 2, also has the following implementation method:

[0065] The liquid inlet 1311 is located on the lower side of the welding base 11 in the vertical direction, and the liquid outlet 1312 is located on the upper side of the welding base 11 in the vertical direction.

[0066] Example 7

[0067] Example 7, based on Example 1, also has the following implementation method:

[0068] The device body 1 also includes a support 14 and a lifting assembly 15 connected to the support 14. The lifting assembly 15 includes a fixed seat 151 fixedly connected to the support 14, a driver 152 connected to the fixed seat 151, a telescopic rod 153 connected to the driver 152, and a movable seat 154 connected to the telescopic rod 153. The movable seat 154 is fixedly connected to the welding seat 11, and the driver 152 can control the telescopic movement of the telescopic rod 153.

[0069] Example 8

[0070] Example 8, based on Example 2, also has the following implementation method:

[0071] The cooling assembly 13 includes an inlet pipe 132 and an outlet pipe 133 connected to both ends of the cooling channel 131, and a cooling device connected to the inlet pipe 132 and the outlet pipe 133. The inlet port 1311 and the outlet port 1312 are connected to the inlet pipe 132 and the outlet pipe 133, respectively. The inlet port 1311 has a funnel-shaped cross-section and gradually narrows from the outside of the welding base 11 to the inside of the welding base 11. The diameter of the inlet pipe 132 is larger than the diameter of the cooling part 1313.

[0072] Example 9

[0073] Example 9, based on Example 2, also has the following implementation method:

[0074] The mounting hole 111 penetrates the welding base 11 in the vertical direction. The welding needle 12 includes a heat dissipation part 121 connected to the mounting hole 111 and a limiting part 122 connected to the heat dissipation part 121. The limiting part 122 is located on the upper side of the welding base 11, and the diameter of the limiting part 122 is larger than the diameter of the mounting hole 111.

[0075] Example 10

[0076] Example 10, based on Example 3, also has the following implementation method:

[0077] Each of the two welding base blocks 112 is provided with a cooling channel 131.

[0078] Example 11

[0079] The difference between Embodiment 11 and Embodiment 10 is that each of the two welding base blocks 112 is provided with two cooling channels 131.

[0080] The above examples are merely illustrative of the technical content of this utility model to facilitate reader understanding, but do not imply that the implementation of this utility model is limited to these embodiments. Any technical extensions or re-creations made based on this utility model are protected by this utility model. The scope of protection of this utility model is defined by the claims.

Claims

1. A spot welding apparatus with a cooling component, comprising an apparatus body (1), characterized in that, The device body (1) includes a welding base (11), a welding needle (12) connected to the welding base (11), and a cooling assembly (13). The cooling assembly (13) includes a cooling channel (131) provided in the welding base (11) for the flow of coolant. The coolant passes through the cooling channel (131) in the welding base (11) to reduce the temperature of the welding base (11) and the welding needle (12).

2. A spot welding device having a cooling assembly according to claim 1, characterized in that The welding base (11) is provided with a mounting hole (111) that is connected to the welding needle (12). The cooling channel (131) includes an inlet (1311) and an outlet (1312) respectively located on opposite sides of the welding base (11), and a cooling section (1313) connecting the inlet (1311) and the outlet (1312).

3. A spot welding device having a cooling assembly according to claim 2, characterized in that The welding base (11) includes a welding base block (112). One side of the welding base block (112) is provided with a mounting groove (1121) for mounting the welding needle (12). Two welding base blocks (112) are connected to each other so that the two mounting grooves (1121) form the mounting hole (111). The welding base block (112) is provided with a connecting hole (1122). Fasteners pass through the connecting holes (1122) located in the two welding base blocks (112) in sequence so that the two welding base blocks (112) are fixedly connected. The cooling channel (131) is located in the welding base block (112). The liquid inlet (1311) and the liquid outlet (1312) are located on opposite sides of the welding base block (112).

4. A spot welding device having a cooling assembly as defined in claim 2, wherein, The cooling section (1313) includes a first cooling section (13131) and a second cooling section (13132). The first cooling section (13131) is elongated, and the second cooling section (13132) is arc-shaped. Multiple first cooling sections (13131) and second cooling sections (13132) are alternately connected so that the cooling section (1313) extends in an arc shape. The first cooling section (13131) and the second cooling section (13132) located at both ends of the cooling section (1313) are respectively connected to the liquid inlet (1311) and the liquid outlet (1312).

5. A spot welding device having a cooling assembly as defined in claim 2, wherein, The liquid inlet (1311) and liquid outlet (1312) are located on opposite sides of the welding base (11) in the horizontal direction.

6. A spot welding device having a cooling assembly as defined in claim 2, wherein, The liquid inlet (1311) is located on the lower side of the welding base (11) in the vertical direction, and the liquid outlet (1312) is located on the upper side of the welding base (11) in the vertical direction.

7. The spot welding apparatus having a cooling assembly of claim 1, wherein, The device body (1) further includes a support (14) and a lifting assembly (15) connected to the support (14). The lifting assembly (15) includes a fixed seat (151) fixed to the support (14), a driver (152) connected to the fixed seat (151), a telescopic rod (153) connected to the driver (152), and a movable seat (154) connected to the telescopic rod (153). The movable seat (154) is fixedly connected to the welding seat (11), and the driver (152) can control the telescopic rod (153) to extend and retract.

8. A spot welding device having a cooling assembly as defined in claim 2, wherein, The cooling assembly (13) includes an inlet pipe (132) and an outlet pipe (133) connected to both ends of the cooling channel (131), and a cooling device connected to the inlet pipe (132) and the outlet pipe (133). The inlet port (1311) and the outlet port (1312) are connected to the inlet pipe (132) and the outlet pipe (133), respectively. The inlet port (1311) has a funnel-shaped cross-section and gradually narrows from the outside of the welding base (11) to the inside of the welding base (11). The diameter of the inlet pipe (132) is larger than the diameter of the cooling part (1313).

9. A spot welding apparatus with a cooling component according to claim 2, characterized in that, The mounting hole (111) penetrates the welding base (11) in the vertical direction. The welding needle (12) includes a heat dissipation part (121) connected to the mounting hole (111) and a limiting part (122) connected to the heat dissipation part (121). The limiting part (122) is located on the upper side of the welding base (11), and the diameter of the limiting part (122) is larger than the diameter of the mounting hole (111).

10. The spot welding apparatus having a cooling assembly of claim 3, wherein, Each of the two welding base blocks (112) is provided with at least one cooling channel (131).

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