A harness spot welding jig cooling device

Abstract

The utility model discloses a kind of harness spot welding jig cooling device, comprising: upper fixed component, including upper fixed seat, the upper fixed seat is provided with upper welding head;Lower fixed component, including lower fixed seat, the lower fixed seat is provided with lower welding head;Cooling assembly, including the cooling channel of being set in upper fixed seat and the lower fixed seat.The utility model has beneficial effects in that when cooling water flows into cooling channel, the heat generated by upper welding head and lower welding head during spot welding operation can be quickly absorbed, forming a continuous heat dissipation cycle, while ensuring efficient cooling of the welding head, effectively controlling the overall size and occupied space of the device, ensuring welding quality and improving yield.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment technology, specifically to a cooling device for a wire harness spot welding fixture. Background Technology

[0002] Resistance welding is a welding method that uses the resistance heat generated by the current passing through the contact surface of the workpiece to weld. In the manufacturing process of PTC heaters, it is necessary to weld the aluminum strip inserts and wire harness terminals of the PTC heater together. At this time, resistance welding is usually used for processing. However, during continuous operation, the welding head will become uneven due to high temperature, which will affect the reliability of the product. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a cooling device for wire harness spot welding fixture, which effectively cools the welding rod by circulating condensate, extends the service life of the welding rod, and improves welding quality and efficiency.

[0004] Specifically, this utility model discloses a cooling device for a wire harness spot welding fixture, comprising:

[0005] The upper fixing component includes an upper fixing seat, wherein the upper fixing seat is provided with an upper welding head;

[0006] The lower fixing component includes a lower fixing seat, wherein the lower fixing seat is provided with a lower welding head;

[0007] The cooling assembly includes cooling channels disposed within the upper and lower fixed bases.

[0008] The advantage of adopting the above technical solution is that when the cooling water flows into the cooling channel, it can quickly absorb the heat generated by the upper and lower welding heads during the spot welding operation, forming a continuous heat dissipation cycle. While ensuring efficient cooling of the welding head, it effectively controls the overall size and space occupied by the device, ensures welding quality, and improves the yield rate.

[0009] Furthermore, the upper fixing base includes an upper fixing plate, a middle connecting plate, and an upper mounting plate, wherein the upper mounting plate is provided with clamping holes for fixing the upper welding head.

[0010] The advantage of adopting the above technical solution is that the upper fixing plate is used to connect with the equipment, while the clamping hole is used to fix the lower welding head, which facilitates the disassembly of the welding head.

[0011] Furthermore, the lower fixing base includes a lower fixing plate, a lower connecting plate, and a lower mounting plate. The lower mounting plate is provided with fixing holes corresponding to the clamping holes, and the fixing holes are used to fix the lower welding head.

[0012] The advantages of adopting the above technical solution are that the lower fixing plate is connected to the welding equipment to achieve stable installation of the whole device. The fixing holes on the lower mounting plate correspond to the clamping holes on the upper mounting plate, ensuring that the upper and lower welding heads can be accurately aligned during welding operations, thus ensuring the accuracy of the weld point position. The lower welding head is installed and fixed through the fixing holes, which is compatible with the installation method of the upper welding head, making it convenient to perform synchronous maintenance or replacement of the upper and lower welding heads in the later stage, thereby improving the maintenance efficiency of the equipment.

[0013] Furthermore, the upper fixed base and the lower fixed base are provided with a water inlet and a water outlet, the water inlet and the water outlet are connected to the two ends of the cooling channel, and the water inlet and the water outlet are connected to the water inlet pipe and the water return pipe.

[0014] The advantage of adopting the above technical solution is that the inlet and outlet are connected to the inlet pipe and return pipe respectively, forming a complete cooling water circulation path. The inlet pipe transports the external low-temperature cooling water to the cooling channel, while the outlet discharges the cooling water that has completed heat absorption and temperature rise through the return pipe, realizing continuous renewal of cooling water and timely transfer of heat, thereby improving cooling efficiency.

[0015] Furthermore, the cooling channel includes an upper pipe and a lower pipe, and the two pipes are interconnected.

[0016] The advantage of adopting the above technical solution is that the multi-layer heat dissipation pipe configuration increases the contact area between the cooling water and the upper and lower fixed seats, thereby improving the heat dissipation efficiency.

[0017] Furthermore, both the fixing hole and the clamping hole are connected to a clamping groove, and a locking hole is provided on the side of the clamping groove, and a locking element is provided in the locking hole.

[0018] The advantages of adopting the above technical solution are that when the welding head is installed in the clamping hole or fixing hole, the clamping groove can provide a certain elastic shrinkage space. By tightening the locking part in the locking hole, radial pressure can be applied to the clamping groove, which reduces the diameter of the clamping hole and fixing hole, thereby firmly clamping the welding head. This effectively prevents the welding head from loosening or shifting during high-frequency welding operations, ensuring the stability of the welding process and the consistency of the weld quality. At the same time, it is also convenient to flexibly adjust the clamping force according to different specifications of welding heads, improving the adaptability of the device to the welding head.

[0019] Furthermore, both the upper welding head and the lower welding head have annular grooves on their sides, and a retaining spring is provided in the annular groove.

[0020] The advantage of adopting the above technical solution is that the cooperation between the annular groove and the retaining ring can effectively limit the axial position of the welding head in the fixed seat. When the welding head is installed in place, the retaining ring is embedded in the annular groove and abuts against the end face of the upper or lower mounting plate, preventing the welding head from moving axially under the welding pressure, which is convenient to use.

[0021] Furthermore, the cooling channel is a curved channel.

[0022] The advantage of adopting the above technical solution is that the curved cooling channel increases the flow area of ​​cooling water and improves cooling efficiency.

[0023] Furthermore, the upper fixing plate and the lower fixing plate are arranged in parallel.

[0024] The advantage of adopting the above technical solution is that the parallel upper and lower fixing plates can ensure that the upper and lower welding heads are parallel to each other after installation, which can better contact the product.

[0025] Furthermore, the upper mounting plate and the lower mounting plate are provided with horizontal insert plates, which pass through the clamping holes and the fixing holes.

[0026] The advantage of adopting the above technical solution is that the horizontal insert plate can provide radial support for the welding head in the clamping hole and fixing hole, further improving the structural stability of the welding head after installation and preventing the welding head from shifting due to force during the welding process. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0028] Figure 1 This utility model relates to the overall structure of the cooling device for wire harness spot welding fixtures. Figure 1

[0029] Figure 2 This utility model relates to the overall structure of the cooling device for wire harness spot welding fixtures. Figure 2

[0030] Figure 3 This is a schematic diagram of the cooling channel structure of this utility model. Figure 1

[0031] Figure 4 This is a schematic diagram of the cooling channel structure of this utility model. Figure 2

[0032] Figure 5 This is a schematic diagram of the cooling channel structure of this utility model. Figure 3

[0033] Figure 6 This is a schematic diagram of the cooling channel structure of this utility model. Figure 4

[0034] Figure 7 This is a schematic diagram of the horizontal insert plate installation structure of this utility model.

[0035] The reference numerals used in the attached figures are as follows:

[0036] Upper fixed base 1; upper fixed plate 11; middle connecting plate 12; upper mounting plate 13; clamping hole 14; water inlet 15; water outlet 16; clamping groove 17; locking hole 18; upper welding head 2; lower fixed base 3; lower fixed plate 31; lower connecting plate 32; lower mounting plate 33; fixing hole 34; lower welding head 5; cooling channel 4; upper pipe 41; lower pipe 42; snap ring 6; horizontal insert plate 7. Detailed Implementation

[0037] The present invention will now be described in further detail with reference to the accompanying drawings.

[0038] like Figure 1-2 As shown, this utility model discloses a cooling device for a wire harness spot welding fixture, comprising:

[0039] The upper fixing component includes an upper fixing seat 1, wherein the upper fixing seat 1 is provided with an upper welding head 2;

[0040] The lower fixing component includes a lower fixing seat 3, wherein the lower fixing seat 3 is provided with a lower welding head 5;

[0041] The cooling assembly includes cooling channels 4 disposed within the upper fixed base 1 and the lower fixed base 3.

[0042] The advantage of adopting the above technical solution is that when the cooling water flows into the cooling channel 4 from the inlet 15 through the inlet pipe, it can quickly absorb the heat generated by the upper welding head 2 and the lower welding head 5 during the spot welding operation. Then, the water carrying the heat flows out from the outlet 16 through the return pipe, forming a continuous heat dissipation cycle. While ensuring efficient cooling of the welding head, it effectively controls the overall size and space occupied by the device, and ensures the welding quality.

[0043] In some embodiments, the upper fixing base 1 includes an upper fixing plate 11, a middle connecting plate 12 and an upper mounting plate 13. The upper mounting plate 13 is provided with clamping holes 14 for fixing the upper welding head 2. The upper fixing base 1, the middle connecting plate 12 and the upper mounting plate 13 can be fixed by locking or integrally formed by processing. The cooling channel is provided in the upper mounting plate 13.

[0044] Furthermore, the lower fixing base 3 includes: a lower fixing plate 31, a lower connecting plate 32, and a lower mounting plate 33. The lower mounting plate 33 is provided with fixing holes 34 corresponding to the clamping holes 14. The fixing holes 34 are used to fix the lower welding head 5. The lower fixing plate 31, the lower connecting plate 32, and the lower mounting plate 33 can be fixed by locking or welding, or they can be integrally formed. The cooling channel is set in the lower mounting plate 33. After installation, the clamping holes 14 and the fixing holes 34 correspond to each other to ensure the position of the upper welding head 2 and the lower welding head 5, which facilitates the welding process.

[0045] In some implementation schemes, such as Figure 3 As shown, the upper fixed base 1 and the lower fixed base 3 are provided with a water inlet 15 and a water outlet 16. The water inlet 15 and the water outlet 16 are connected to both ends of the cooling channel 4. The water inlet 15 and the water outlet 16 are connected to the inlet pipe and the return pipe, which are connected to a cooling tower or heat exchanger, etc., to cool the cooling water in the cooling channel 4, thereby improving the cooling efficiency. The cooling pipes are extended to both sides of the welding head fixing point, such as... Figure 6 As shown, it can better transfer the heat generated by the welding head during the welding process.

[0046] Furthermore, such as Figure 4 As shown, the cooling channel 4 includes an upper pipe 41 and a lower pipe 42. The two pipes are interconnected. The multi-layer cooling channel 4 ensures uniform cooling of the upper welding head 2 and the lower welding head 5, further improving the cooling efficiency. The upper pipe 41 and the lower pipe 42 share a water inlet 15 and a water outlet 16, which can be connected by a water inlet pipe and a water return pipe.

[0047] In some implementations, both the fixing hole 34 and the clamping hole 14 are connected to a clamping groove 17. A locking hole 18 is provided on the side of the clamping groove 17, and a locking element is provided in the locking hole 18. The clamping groove 17 passes through one side of the clamping hole 14 and the fixing hole 34 and is arranged along the axis of the clamping hole 14 and the fixing hole 34. The locking element is horizontally arranged and can be a bolt, etc. When the locking element is tightened, the width of the clamping groove is reduced, making the fixing hole 34 and the clamping hole 14 smaller, clamping the upper welding head 2 and the welding head, effectively preventing the welding head from loosening or shifting during high-frequency welding operations, ensuring the stability of the welding process and the consistency of the weld quality, and also facilitating flexible adjustment of the clamping force according to different specifications of welding heads, improving the adaptability of the device to welding heads, and making it suitable for various types of welding heads.

[0048] Furthermore, both the upper welding head 2 and the lower welding head 5 are provided with annular grooves on their sides, and a retaining spring 6 is provided in the annular groove. The position of the annular groove of the upper welding head 2 is on the lower side of the upper mounting plate 13. After the retaining spring 6 is installed, its upper surface contacts the lower surface of the upper mounting plate 13, which effectively prevents the upper welding head 2 from moving upward during frequent lifting and lowering, ensuring the position of the upper welding head 2 and ensuring the welding quality.

[0049] The annular groove of the lower welding head 5 is located on the upper side of the lower mounting plate 33. After the snap ring 6 is installed, the lower surface of the snap ring 6 contacts the upper surface of the lower mounting plate 33, effectively preventing the lower welding head 5 from moving downward during frequent lifting and use. At the same time, the snap ring 6 is designed to facilitate disassembly and replacement of the upper welding head 2 and the lower welding head 5.

[0050] Furthermore, cooling channel 4 is a curved channel, such as... Figure 5 As shown, the curved cooling channel 4 increases the flow area of ​​cooling water and improves cooling efficiency.

[0051] In some implementations, the upper fixing plate 11 and the lower fixing plate 31 are arranged in parallel. Both the upper fixing plate 11 and the lower fixing plate 31 are provided with mounting holes for connection with welding equipment. After installation, the upper mounting plate 13 and the lower mounting plate 33 are also arranged in parallel to ensure the position of the upper welding head 2 and the lower welding head 5, so as to facilitate the docking of the upper welding head 2 and the lower welding head 5 with the product and ensure the welding quality. The heat exchange tower connected by water pipes can detect the water temperature and adjust the flow rate.

[0052] Furthermore, the upper mounting plate 13 and the lower mounting plate 33 are provided with horizontal insert plates 7, such as... Figure 7 As shown, the horizontal insert plate 7 passes through the clamping hole 14 and the fixing hole 34. Vertically arranged insert blocks can also be inserted into both sides of the horizontal insert plate 7 to prevent the horizontal insert plate 7 from moving left and right. The horizontal insert plate 7 contacts the upper welding head 2 and the lower welding head 5 to prevent the upper welding head 2 and the lower welding head 5 from moving, thereby enhancing the stability of the welding head in the radial direction and avoiding slight shaking of the welding head due to welding impact force, thus ensuring the accuracy of the welding point position.

[0053] For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A cooling device for a wire harness spot welding fixture, characterized in that, include: The upper fixing component includes an upper fixing seat (1), wherein the upper fixing seat (1) is provided with an upper welding head (2); The lower fixing component includes a lower fixing seat (3), wherein the lower fixing seat (3) is provided with a lower welding head (5); The cooling assembly includes cooling channels (4) disposed within the upper fixed seat (1) and the lower fixed seat (3).

2. The cooling device for the wire harness spot welding fixture according to claim 1, characterized in that, The upper fixing base (1) includes an upper fixing plate (11), a middle connecting plate (12) and an upper mounting plate (13), wherein the upper mounting plate (13) is provided with a clamping hole (14) for fixing the upper welding head (2).

3. The wire harness spot welding fixture cooling device according to claim 2, characterized in that, The lower fixing base (3) includes a lower fixing plate (31), a lower connecting plate (32) and a lower mounting plate (33). The lower mounting plate (33) is provided with a fixing hole (34) corresponding to the clamping hole (14). The fixing hole (34) is used to fix the lower welding head (5).

4. The cooling device for the wire harness spot welding fixture according to claim 1, characterized in that, The upper fixed base (1) and the lower fixed base (3) are provided with a water inlet (15) and a water outlet (16). The water inlet (15) and the water outlet (16) are connected to both ends of the cooling channel (4). The water inlet (15) and the water outlet (16) are connected to the water inlet pipe and the water return pipe.

5. The cooling device for the wire harness spot welding fixture according to claim 1, characterized in that, The cooling channel (4) includes an upper pipe (41) and a lower pipe (42), and the two pipes are interconnected.

6. The wire harness spot welding fixture cooling device according to claim 3, characterized in that, The fixing hole (34) and the clamping hole (14) are both connected to a clamping groove (17). A locking hole (18) is provided on the side of the clamping groove (17), and a locking element is provided in the locking hole (18).

7. The cooling device for the wire harness spot welding fixture according to claim 1, characterized in that, Both the upper welding head (2) and the lower welding head (5) have annular grooves on their sides, and a retaining ring (6) is provided in the annular groove.

8. The cooling device for the wire harness spot welding fixture according to claim 1, characterized in that, The cooling channel (4) is a curved channel.

9. The cooling device for the wire harness spot welding fixture according to claim 3, characterized in that, The upper fixing plate (11) and the lower fixing plate (31) are arranged in parallel.

10. The cooling device for the wire harness spot welding fixture according to claim 1, characterized in that, The upper mounting plate (13) and the lower mounting plate (33) are provided with horizontal insert plates (7), which pass through the clamping hole (14) and the fixing hole (34).

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