Automobile wire harness connecting, wrapping and welding device

Abstract

The invention relates to the technical field of welding devices, and discloses an automobile wire harness connecting and wrapping welding device which comprises a base, an electromagnet block is embedded in the middle of the top end of the base, the base is filled with cooling oil, conveying plates are fixedly installed at the two ends of the base correspondingly, and side plates are fixedly installed on the two sides of the base correspondingly; according to the automobile wire harness connecting and wrapping welding device, splashing metal generated at the welding position can be sucked in time through the external gas guide assembly in the welding process, molten metal is left in the clamping and welding assembly through the diffusion effect, gas is exhausted into the base from the bottom end, and the welding efficiency is improved. In this way, a welding part can be cooled to a certain degree, continuous high temperature of the table top is avoided, meanwhile, most importantly, the situation that the wire harness and the welding part are damaged due to splashing of molten metal is avoided, and the continuous and effective welding effect of the device is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of welding equipment technology, specifically to a welding device for connecting and wrapping automotive wiring harnesses. Background Technology

[0002] In automotive wiring harness manufacturing, the wrapping and welding of the connection point where two wires meet is a critical process. Traditional welding equipment requires clamping the ends of the two wiring harnesses together and then welding them together with a welding head. However, existing welding wrapping equipment still has some problems in use, as follows:

[0003] On the one hand, existing wire harness welding devices have unstable clamping effects on wire harnesses. They all rely on mechanical equipment to push the wire harness onto the welding table and then clamp it using a clamping device. During the pushing process, the wire harness ends may shift, requiring extra care to straighten them. This leads to inconvenience in clamping the wire harness and can also result in wire harness damage during clamping due to shifting. On the other hand, existing welding devices generate metal spatter at the welding point, and the welding point is exposed to high temperatures for extended periods. This can cause the outer surface of the wire harness to melt and shrink at that location, resulting in wire harness bending. The molten metal spatter can also damage the wire harness surface, compromising the safety of the entire wire harness in subsequent use. To address these issues, we propose an automotive wire harness connection and wrapping welding device. Summary of the Invention

[0004] This invention provides an automotive wiring harness connection and welding device, which has the advantages of good welding effect and safe use, and solves the problems mentioned in the background art.

[0005] This invention provides the following technical solution: an automotive wiring harness connection and welding device, comprising a base, an electromagnet block embedded in the center of the top of the base, cooling oil filling the interior of the base, conveying plates fixedly installed at both ends of the base, side plates fixedly installed on both sides of the base, brackets fixedly installed on the sides of the side plates, an electric telescopic rod fixedly installed at the top of the brackets, a support plate fixedly installed at the telescopic end of the electric telescopic rod, a clamping welding assembly fixedly installed between the two support plates, extension frames fixedly installed at both ends of the clamping welding assembly, locking push rods movably inserted into the upper sides of the interior of the base, a side frame fixedly installed on the side plate, an extension rod fixedly installed on the side frame, a scraping and cleaning assembly movably connected to the extension rod, a wiring harness carrying assembly movably installed on the base, and an air guiding assembly fixedly installed on the side plate.

[0006] In a preferred embodiment, the clamping welding assembly includes an outer frame, a central welding head fixedly mounted in the middle of the outer frame, a welding drive integrated block provided at the top of the outer frame, and a welding end provided at the bottom of the central welding head. Suction grooves are respectively opened on both sides of the bottom of the outer frame at the central welding head. Stands are fixedly mounted on both sides of the central welding head inside the outer frame. Guide plates are fixedly mounted between adjacent stands and between the stands and the interior of the outer frame. Collection chambers are fixedly mounted on the bottom of both sides of the outer frame.

[0007] In a preferred embodiment, the bottom end of the central welding head is disposed through the middle of the outer frame, the upright is fixedly disposed between two adjacent suction grooves, the guide plate is disposed above the suction groove and inclined to guide one side of the outer frame, and the bottom of the collection chambers installed on both sides of the outer frame are provided with slots that are connected to the interior of the collection chambers.

[0008] In a preferred embodiment, the scraping and cleaning assembly includes a round rod with a pull rope fixedly connected to it. A horizontal plate is fixedly installed at one end of the pull rope. A crossbar is fixedly installed at the middle of one side of the horizontal plate. A scraper is fixedly installed at one end of the crossbar. A plurality of telescopic rods are evenly fixedly installed on one side of the scraper, and a first spring is sleeved on the telescopic rod.

[0009] In a preferred embodiment, the number of round rods is even and they are rotatably mounted on the extension rod. The pull rope is non-extendable and fixed in length. The crossbar is movably inserted into the outer frame and slidably disposed. The scraper is detachably attached to the upright. The top of the scraper is spaced apart from the top of the guide plate. The two ends of the first spring are respectively fixedly connected to the central welding head and one side of the scraper.

[0010] In a preferred embodiment, the wire harness carrying assembly includes a base plate, a tray slidably disposed on the top of the base plate, a plug rod fixedly installed at the bottom center of the tray, limit pins fixedly installed at the four corners of the bottom of the tray, a locking sleeve rod fixedly installed above the tray, a pin head fixedly installed at the center of one end of the base plate, a locking short pin structure movably installed inside the pin head, a wire drag placement groove movably installed above the tray, and a driven electromagnet embedded in the end of the wire drag placement groove facing the clamping welding assembly.

[0011] In a preferred embodiment, the insert rod and the limiting pin are movably disposed through the base plate. After the limiting pin is inserted, the bottom end is at the same height as the lower surface of the base plate. The lower surface of the insert rod is provided with a bevel structure. An air supply device is connected to one side of the tray. The bottom end of the insert rod is movably disposed in the pin head. An expansion hose is provided at equal intervals on the locking sleeve rod. The outer diameter of the expansion hose is smaller than the outer diameter of the locking sleeve rod when it is not inflated. The outer surface of the expansion hose is provided with an anti-slip rubber layer. The line drag placement groove is movably sleeved on the locking sleeve rod. A sliding groove is opened at the top of the base and the pin head is slidably disposed in the sliding groove. A locking through groove is opened in the middle of the sliding groove. The locking push rod is located in the locking through groove and is movably disposed in a limited position.

[0012] In a preferred embodiment, the locking pin structure includes a pin block, with end blocks provided at both ends of the pin block, and a second spring fixedly installed on one side of each end block.

[0013] In a preferred embodiment, the pin block has rounded corner structures on both sides of the end that contacts the locking push rod, the end block is slidably disposed inside the pin head, one end of the second spring is fixedly installed inside the pin head, and the end of the pin block with the rounded corner structure extends out of the pin head when not subjected to external force.

[0014] In a preferred embodiment, the air guiding assembly includes a fan, with air guiding pipes connected to both ends of the fan, an exhaust head fixedly connected to one end of each air guiding pipe, the top of the fan being connected through the interior of the outer frame, fins being provided in the center of the base directly above the exhaust head, the exhaust head being located in the lower interior of the base, and an exhaust hole being provided on the base.

[0015] The present invention has the following beneficial effects:

[0016] 1. This automotive wiring harness connection and welding device, through the installation of a wiring harness carrying component, allows the wiring harness to be pre-placed on it, then moved and transported to the base on a conveyor plate. After reaching the base and completing the docking constraint, the bottom end of the clamping welding component moves down to press one end of the wiring harness on the carrying component. Then, the welding head at the bottom of the central welding head performs welding operations on the ends of the wiring harness that have been docked simultaneously. During the welding process, an external air guide component can promptly suck up the spatter metal generated at the welding position. Inside the clamping welding component, the diffusion effect keeps the molten metal inside, while the gas is discharged from the bottom end into the base. This achieves a certain degree of cooling of the welding area, avoiding continuous high temperature on the table. Most importantly, it avoids damage to the wiring harness and welding area caused by molten metal splashing, ensuring the continuous and effective welding effect of the device.

[0017] 2. This automotive wiring harness connection and welding device uses an exhaust head located inside the base to allow the gas drawn in from above to be ejected. The ejected gas agitates the coolant filling the base, improving its continuous and effective cooling of the welding area and preventing damage to the wiring harness surface from sustained high temperatures. Furthermore, as the welding assembly moves up and down, it drives the side extension frame to adjust the locking mechanism located above the base. This unlocks the locking effect of the wiring harness support assembly on the base during the upward movement of the extension frame, ensuring continuous operation of the entire device. Simultaneously, the upward movement also pulls the scraping and cleaning component inside the welding assembly, automatically scraping away and cleaning the cooled metal splatter solution that falls and collects inside the welding assembly during each upward movement, ensuring continuous and effective collection of molten metal inside the welding assembly. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the first three-dimensional structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the first partial three-dimensional structure of the present invention;

[0021] Figure 4 This is a schematic diagram of the second partial three-dimensional structure of the present invention;

[0022] Figure 5 This is a three-dimensional schematic diagram of the clamping welding assembly and its connection structure of the present invention;

[0023] Figure 6 This is a three-dimensional structural diagram of the clamping welding assembly and the scraping cleaning assembly of the present invention;

[0024] Figure 7 This is a three-dimensional structural diagram of the wire harness bearing assembly of the present invention;

[0025] Figure 8 This is a schematic diagram of the first partial three-dimensional structure of the wire harness bearing assembly of the present invention;

[0026] Figure 9 This is a schematic diagram of the second partial three-dimensional structure of the wire harness carrying assembly of the present invention;

[0027] Figure 10 This is a schematic diagram of the third partial three-dimensional structure of the wire harness bearing assembly of the present invention;

[0028] Figure 11 This is a schematic diagram of the three-dimensional structure of the locking pin of the present invention.

[0029] In the diagram: 1. Base; 2. Conveyor plate; 3. Side plate; 4. Support; 5. Electric telescopic rod; 6. Support plate; 7. Clamping and welding assembly; 71. Outer frame; 72. Center welding head; 73. Suction trough; 74. Vertical frame; 75. Guide plate; 76. Collection chamber; 8. Extension frame; 9. Locking push rod; 10. Side frame; 11. Extension rod; 12. Scraping and cleaning assembly; 121. Round rod; 122. Pull rope; 123. Horizontal plate; 124. Horizontal bar; 125. Scraper; 126. Telescopic rod; 127. First spring; 13. Wire harness carrying assembly; 131. Base plate; 132. Tray; 133. Insert rod; 134. Limit pin; 135. Locking sleeve rod; 136. Pin head; 137. Locking short pin structure; 1371. Pin block; 1372. End block; 1373. Second spring; 138. Wire drag placement slot; 139. Driven electromagnet; 14. Air guide assembly; 141. Fan; 142. Air guide pipe; 143. Exhaust head. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The automotive wiring harness connection and welding device involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figure 1-5 A welding device for connecting and wrapping automotive wiring harnesses includes a base 1, an electromagnet block embedded in the center of the top of the base 1, cooling oil filling the interior of the base 1, conveying plates 2 fixedly installed at both ends of the base 1, side plates 3 fixedly installed on both sides of the base 1, brackets 4 fixedly installed on the sides of the side plates 3, an electric telescopic rod 5 fixedly installed at the top of the brackets 4, a support plate 6 fixedly installed at the telescopic end of the electric telescopic rod 5, a clamping welding assembly 7 fixedly installed between the two support plates 6, extension frames 8 fixedly installed at both ends of the clamping welding assembly 7, locking push rods 9 movably inserted into the upper sides of the interior of the base 1, a side frame 10 fixedly installed on the side plate 3, an extension rod 11 fixedly installed on the side frame 10, a scraping and cleaning assembly 12 movably connected to the extension rod 11, a wiring harness carrying assembly 13 movably installed on the base 1, and an air guiding assembly 14 fixedly installed on the side plate 3.

[0032] Compared with existing technologies, this application, by setting up a wire harness carrying component 13, allows the wire harness to be placed on it in advance, then moved and transported on the conveyor plate 2 to the base 1. After reaching the base 1 and completing the docking constraint, the bottom end of the clamping welding component 7 moves down to press one end of the wire harness on the wire harness carrying component 13. Then, the welding head at the bottom end of the central welding head 72 is used to weld the ends of the wire harness that have been docked at both ends. During the welding process, the external air guiding component 14 can promptly suck up the splashed metal generated at the welding position. Furthermore, the diffusion effect inside the clamping welding component 7 allows the molten metal to remain inside, while the gas is discharged from the bottom end into the base 1. This achieves a certain degree of cooling of the welding area, avoiding continuous high temperature on the table surface. Most importantly, it avoids damage to the wire harness and welding area caused by splashing molten metal, ensuring the continuous and effective welding effect of the device. Meanwhile, the exhaust head 143 installed in the base 1 allows the gas drawn in from above to be ejected from there. The ejected gas can agitate the coolant filled in the base 1, thereby improving its continuous and effective cooling of the welding part in the middle and preventing damage to the wire harness surface caused by continuous high temperature at the welding position. On the other hand, during the up and down movement of the clamping welding component 7, the extension frame 8 on the side will drive the locking mechanism set in the upper part of the base 1 to adjust, thereby unlocking the locking effect of the wire harness carrying component 13 on the base 1 during the upward movement of the extension frame 8, ensuring the continuous operation of the entire device. At the same time, the upward movement will also pull the scraping and cleaning component 12 to move inside the clamping welding component 7, so that during each upward movement, the scraping and cleaning component 12 can automatically scrape and clean the cooled metal splash solution that falls and collects inside the clamping welding component 7 to the side collection, ensuring that the clamping welding component 7 can continuously and effectively collect molten metal.

[0033] Please see Figure 1-5 A welding device for connecting automotive wiring harnesses includes a clamping welding assembly 7. The clamping welding assembly 7 includes an outer frame 71. A central welding head 72 is fixedly installed in the middle of the outer frame 71. A welding drive integrated block is provided at the top of the outer frame 71. A welding end is provided at the bottom of the central welding head 72. Suction grooves 73 are respectively opened on both sides of the bottom of the outer frame 71 at the central welding head 72. Stands 74 are fixedly installed on both sides of the central welding head 72 inside the outer frame 71. A guide plate 75 is fixedly installed between adjacent stands 74 and between the stands 74 and the interior of the outer frame 71. Collection chambers 76 are fixedly installed on both bottom sides of the outer frame 71.

[0034] In this embodiment, it should be noted that the bottom end of the central welding head 72 is disposed through the middle of the outer frame 71, the upright 74 is fixedly disposed between two adjacent suction grooves 73, and the guide plate 75 is disposed above the suction groove 73 and inclined to guide one side of the outer frame 71. The bottom of the collection chambers 76 installed on both sides of the outer frame 71 has slots that are connected to the inside of the collection chambers 76. In this way, when the central welding head 72 below is welding the end of the wire harness, the suction force generated inside the outer frame 71 by the side air guiding component 14 can suck the splashed metal generated at the welding part into the outer frame 71. Under the guidance of the guide plate 75, all the molten metal can be left inside the bottom of the outer frame 71. Subsequently, the scraping and cleaning component 12 is used to scrape it off and push it into the collection chamber 76 for storage, ensuring the continuous and effective use of this structure.

[0035] Please see Figure 1-6 A welding device for connecting and wrapping automotive wiring harnesses includes a scraping and cleaning assembly 12. The scraping and cleaning assembly 12 includes a round rod 121, a pull rope 122 fixedly connected to the round rod 121, a horizontal plate 123 fixedly installed at one end of the pull rope 122, a horizontal bar 124 fixedly installed at the middle of one side of the horizontal plate 123, a scraper 125 fixedly installed at one end of the horizontal bar 124, and a plurality of telescopic rods 126 evenly fixedly installed on one side of the scraper 125. A first spring 127 is sleeved on the telescopic rod 126.

[0036] In this embodiment, it should be noted that the number of round rods 121 is even and they are rotatably mounted on the extension rod 11. The pull rope 122 is a fixed length non-extendable design. The crossbar 124 is movably inserted into the outer frame 71 and slidably disposed. The scraper 125 is detachably attached to the stand 74. The top of the scraper 125 is spaced apart from the top of the guide plate 75. The two ends of the first spring 127 are fixedly connected to the center welding head 72 and one side of the scraper 125, respectively. In this way, when the clamping welding assembly 7 moves upward, the pull rope 122, which was originally in a horizontal state, can become inclined. This will pull the scraper 125 to slide inside the outer frame 71. During the sliding process, the scraper 125 will scrape off the molten metal falling from the bottom of the inner side of the outer frame 71 and push it to one side into the collection chamber 76 for collection. During the subsequent downward movement of the clamping welding assembly 7, under the action of the first spring 127, the scraper 125 will automatically attach to the stand 74 to ensure the recycling effect of the entire structure.

[0037] Please see Figure 2-10A welding device for connecting and wrapping automotive wiring harnesses includes a wiring harness carrying assembly 13. The wiring harness carrying assembly 13 includes a base plate 131. A tray 132 is slidably disposed on the top of the base plate 131. A plug rod 133 is fixedly installed in the middle of the bottom end of the tray 132. Limit pins 134 are fixedly installed at the four corners of the bottom end of the tray 132. A locking sleeve rod 135 is fixedly installed on the top of the tray 132. A pin head 136 is fixedly installed in the middle of one end of the base plate 131. A locking short pin structure 137 is movably installed inside the pin head 136. A wire drag placement groove 138 is movably installed on the top of the tray 132. A driven electromagnet 139 is embedded in the end of the wire drag placement groove 138 facing the clamping welding assembly 7.

[0038] In this embodiment, it should be noted that the insertion rod 133 and the limiting pin 134 are movably connected through the base plate 131. After the limiting pin 134 is inserted, its bottom end is at the same height as the lower surface of the base plate 131. The lower surface of the insertion rod 133 is provided with a bevel structure. An air supply device is connected to one side of the tray 132. The bottom end of the insertion rod 133 is movably inserted into the pin head 136. An expansion hose is provided at equal intervals on the locking sleeve rod 135. The outer diameter of the expansion hose is smaller than that of the locking sleeve rod when it is not inflated. The outer diameter is 135, and the outer surface of the expansion hose is provided with an anti-slip rubber layer. The cable tray placement groove 138 is movably sleeved on the locking sleeve rod 135. The top of the base 1 has a sliding groove, and the pin head 136 is slidably positioned in the sliding groove. The middle of the sliding groove has a locking through groove, and the locking push rod 9 is positioned in the locking through groove for limited movement. In this way, air can be supplied to the locking sleeve rod 135 by an external air supply device, thereby causing the expansion hose on it to expand, thus realizing the cable tray placement groove The expansion support inside 138 is fixed, and before that, the electromagnet block inside the base 1 and the driven electromagnet 139 can be used to attract each other to quickly and non-contactly position the wire pull placement slot 138. Then, combined with the subsequent fixing of the locking sleeve rod 135, the overall fixing effect is guaranteed. The locking short pin structure 137 at the bottom can lock the position of the base plate 131 by snapping it in place when it moves to the locking through slot, thereby ensuring the position of the entire wire harness carrying assembly 13 is fixed, which also ensures the stability of the wire harness in the subsequent welding process and ensures the welding effect. The insertion rod 133 with the inclined structure can, during the process of the wire harness carrying assembly 13 transporting the wire harness to the top of the base 1, use the groove opened on the base 1 to squeeze the locking short pin structure 137, causing the tray 132 to move up a distance, so that the wire harness is always higher than the middle top of the base 1, ensuring the normal transport of the wire harness.

[0039] Please see Figure 10-11A welding device for connecting and wrapping automotive wiring harnesses includes a locking pin structure 137, which includes a pin block 1371. End blocks 1372 are respectively provided at both ends of the pin block 1371, and a second spring 1373 is fixedly installed on one side of the end block 1372.

[0040] In this embodiment, it should be noted that the pin block 1371 has rounded corner structures on both sides of the end that contacts the locking push rod 9. The end block 1372 is slidably disposed inside the pin head 136. One end of the second spring 1373 is fixedly installed inside the pin head 136. When the pin block 1371 is not subjected to external force, the end with the rounded corner structure extends out of the pin head 136. In this way, after the entire wire harness carrying assembly 13 moves to the corresponding position, the pin block 1371 can be used to limit the entire wire harness carrying assembly 13 by extending and limiting it, thereby ensuring the stability of the wire harness welding process. After the welding is completed, the upward movement of the clamping welding assembly 7 will cause the extension frame 8 to compress and push the locking push rod 9 to move, thereby causing the locking push rod 9 to push the pin block 1371 to retract and move into the pin head 136, thus releasing the restriction and realizing the conveying and discharge of the wire harness after the welding is completed.

[0041] Please see Figure 1-5 A welding device for connecting and wrapping automotive wiring harnesses includes an air guide assembly 14, which includes a fan 141. Both ends of the fan 141 are connected to air guide pipes 142, and one end of the air guide pipes 142 is fixedly connected to an exhaust head 143.

[0042] In this embodiment, it should be noted that the top of the fan 141 is connected to the interior of the outer frame 71. The base 1 has fins located in the middle of the interior, directly above the exhaust head 143. The exhaust head 143 is located in the lower interior of the base 1. The base 1 has exhaust holes. In this way, the suction force generated by the fan 141 can draw the molten metal generated during the welding process into the interior of the outer frame 71, while the excess gas can be discharged into the interior of the base 1 through the exhaust head 143. The cooling oil inside the base 1 can be used to cool the welding position at the top of the base 1, preventing the continuous high temperature from melting the wire harness sheath. The gas can also agitate the internal cooling oil, thereby ensuring the cooling effect.

[0043] Working principle: The wire harness to be welded is placed on the wire tray placement slot 138, and then the wire harness carrying assembly 13 is placed on the conveyor plate 2. The wire harness carrying assembly 13 is then pushed directly above the base 1. At this point, the locking pin structure 137 is inserted into the upper part of the base 1, pushing out the locking push rod 9. Then, the electric telescopic rod 5 and the fan 141 are activated, simultaneously connecting the power supply to the electromagnet block and the driven electromagnet 139 inside the base 1, causing them to attract each other at corresponding positions, thus fixing the overall position of the wire harness carrying assembly 13. The electric telescopic rod 5 drives the clamping welding assembly 7 to move downwards to weld the wire harnesses at both ends. The molten metal generated during welding is sucked into the outer frame 71 by the suction force generated by the fan 141. Under the guidance of the flow plate 75, the molten metal falls to the bottom of the outer frame 71. The resulting airflow is discharged into the base 1 through the exhaust head 143 to agitate the cooling oil and improve its fluidity. After the welding is completed, when the clamped welding assembly 7 is moved upward, it pulls the round rod 121 to rotate around the extension rod 11, which causes the horizontal plate 123 to pull the scraper 125 to slide inside the outer frame 71, thus scraping the molten metal into the side collection chamber 76. While moving upward, the side extension frame 8 can also be used to push and compress the locking push rod 9, causing the locking short pin structure 137 to retract into the pin head 136. At the same time, the power supply to the electromagnet block and the driven electromagnet 139 inside the base 1 is disconnected, making it easy to remove the wire harness carrying assembly 13 from it.

[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A welding device for connecting and wrapping automotive wiring harnesses, comprising a base (1), characterized in that: An electromagnet block is embedded in the middle of the top of the base (1). The base (1) is filled with cooling oil. Conveyor plates (2) are fixedly installed at both ends of the base (1). Side plates (3) are fixedly installed on both sides of the base (1). A bracket (4) is fixedly installed on the side of the side plate (3). An electric telescopic rod (5) is fixedly installed at the top of the bracket (4). A support plate (6) is fixedly installed at the telescopic end of the electric telescopic rod (5). A clamping welding device is fixedly installed between the two support plates (6). The component (7) has extension frames (8) fixedly installed at both ends of the clamping welding component (7). Locking push rods (9) are movably inserted into the upper sides of the base (1). Side frame (10) is fixedly installed on the side plate (3). Extension rod (11) is fixedly installed on the side frame (10). Scraping cleaning component (12) is movably connected to the extension rod (11). Wire harness bearing component (13) is movably installed on the base (1). Air guiding component (14) is fixedly installed on the side plate (3).

2. The automotive wiring harness connection and welding device according to claim 1, characterized in that: The clamping welding assembly (7) includes an outer frame (71), a central welding head (72) is fixedly installed in the middle of the outer frame (71), a welding drive integrated block is provided at the top of the outer frame (71), and a welding end is provided at the bottom of the central welding head (72). Suction grooves (73) are respectively opened on both sides of the bottom of the outer frame (71) and the central welding head (72). Stands (74) are fixedly installed on both sides of the central welding head (72) inside the outer frame (71). Guide plates (75) are fixedly installed between adjacent stands (74) and between the stands (74) and the interior of the outer frame (71). Collection chambers (76) are fixedly installed on the bottom of both sides of the outer frame (71).

3. The automotive wiring harness connection and welding device according to claim 2, characterized in that: The bottom end of the central welding head (72) is set through the middle of the outer frame (71). The upright (74) is fixedly set between two adjacent suction grooves (73). The guide plate (75) is set on one side of the outer frame (71) above the suction groove (73) and inclined to guide it. The bottom of the collection chamber (76) installed on both sides of the outer frame (71) has a slot and is connected to the inside of the collection chamber (76).

4. The automotive wiring harness connection and welding device according to claim 1, characterized in that: The scraping and cleaning assembly (12) includes a round rod (121), a pull rope (122) is fixedly connected to the round rod (121), a horizontal plate (123) is fixedly installed at one end of the pull rope (122), a horizontal bar (124) is fixedly installed at the middle of one side of the horizontal plate (123), a scraper (125) is fixedly installed at one end of the horizontal bar (124), and a plurality of telescopic rods (126) are evenly fixedly installed on one side of the scraper (125), and a first spring (127) is sleeved on the telescopic rod (126).

5. The automotive wiring harness connection and welding device according to claim 4, characterized in that: The number of the round rods (121) is even and they are rotatably mounted on the extension rod (11). The pull rope (122) is non-extendable and fixed in length. The crossbar (124) is movably inserted into the outer frame (71) and slidably mounted. The scraper (125) is detachably mounted on the stand (74). The top of the scraper (125) is spaced apart from the top of the guide plate (75). The two ends of the first spring (127) are fixedly connected to the center welding head (72) and one side of the scraper (125), respectively.

6. The automotive wiring harness connection and welding device according to claim 1, characterized in that: The wire harness carrying assembly (13) includes a base plate (131), a tray (132) is slidably disposed on the top of the base plate (131), a plug rod (133) is fixedly installed in the middle of the bottom end of the tray (132), limit pins (134) are fixedly installed at the four corners of the bottom end of the tray (132), a locking sleeve rod (135) is fixedly installed on the top of the tray (132), a pin head (136) is fixedly installed in the middle of one end of the base plate (131), a locking short pin structure (137) is movably installed inside the pin head (136), a wire drag placement groove (138) is movably installed on the top of the tray (132), and a driven electromagnet (139) is embedded in the end of the wire drag placement groove (138) facing the clamping welding assembly (7).

7. The automotive wiring harness connection and welding device according to claim 6, characterized in that: The insertion rod (133) and the limiting pin (134) are movably connected through the base plate (131). After the limiting pin (134) is inserted, its bottom end is at the same height as the lower surface of the base plate (131). The lower surface of the insertion rod (133) is provided with a sloping structure. An air supply device is connected to one side of the tray (132). The bottom end of the insertion rod (133) is movably inserted into the pin head (136). The locking sleeve rod (135) is provided with equidistant... An expansion hose, the outer diameter of which is smaller than that of the locking sleeve (135) when not inflated, and the outer surface of the expansion hose is provided with an anti-slip rubber layer. The cable placement groove (138) is movably sleeved on the locking sleeve (135). The top of the base (1) is provided with a sliding groove and the pin (136) is slidably positioned in the sliding groove. A locking through groove is provided in the middle of the sliding groove. The locking push rod (9) is positioned in the locking through groove and is limited to move.

8. The automotive wiring harness connection and welding device according to claim 6, characterized in that: The locking pin structure (137) includes a pin block (1371), and end blocks (1372) are respectively provided on both ends of the pin block (1371). A second spring (1373) is fixedly installed on one side of the end block (1372).

9. The automotive wiring harness connection and welding device according to claim 8, characterized in that: The pin block (1371) has rounded corner structures on both sides of the end that contacts the locking push rod (9). The end block (1372) is slidably disposed inside the pin head (136). One end of the second spring (1373) is fixedly installed inside the pin head (136). The end of the pin block (1371) with the rounded corner structure extends out of the pin head (136) when it is not subjected to external force.

10. The automotive wiring harness connection and welding device according to claim 1, characterized in that: The air guiding assembly (14) includes a fan (141), with air guiding pipes (142) connected to both ends of the fan (141). An exhaust head (143) is fixedly connected to one end of the air guiding pipe (142). The top of the fan (141) is connected to the interior of the outer frame (71). A fin is provided in the middle of the base (1) directly above the exhaust head (143). The exhaust head (143) is located in the lower part of the base (1). An exhaust hole is provided on the base (1).

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