Connector pin welding device

Abstract

The invention belongs to the technical field of welding devices, and relates to a connector pin welding device which comprises a welding table, a mounting frame is fixedly connected to the welding table, and a longitudinal adjusting sliding rail is mounted at the end, away from the welding table, of the mounting frame. By means of the alternating assembly, after the welding guns complete welding of connector pins placed on the welding table and when the movable ends of the electric push rods complete stretching into the fixed ends, the positions of the multiple sets of welding guns can be automatically exchanged, so that the phenomenon that the welding guns are overheated due to the fact that one set of welding guns are continuously used for welding is prevented, and the welding efficiency is improved. Through the effects of a pump machine, an air suction box, an air suction hole and an air suction pipe, smoke dust generated in a welding area can be extracted and discharged into a filter box, the purification quality of gas is ensured through the purification quality of gas by an activated carbon adsorption plate and liquid in a purification box, the smoke dust and toxic gas are removed from the welding area in time, and the welding quality is improved. The working environment of workshop workers is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of welding devices and relates to a connector pin welding device. Background Art

[0002] A connector is a physical interface that connects two or more electrical and electronic devices. A pin is the contact part in a connector used to achieve circuit connection, and a connector pin welding device is a device specifically used for welding pins of board-to-board connectors. It melts solder bars through a welding torch to achieve the welding effect.

[0003] When the welding torch performs soldering operations on connector pins, since the welding torch needs to continuously provide high temperature to melt the solder bars, after the welding torch is used for a period of time, the tip of the welding torch is prone to overheating. When continuing to solder the connector pins at this time, it is easy to cause excessive melting of the solder material, resulting in problems such as false soldering, cold soldering, or too large solder joints, thereby affecting the welding quality. Summary of the Invention

[0004] The technical problem to be solved by the present invention is: When the welding torch performs soldering operations on connector pins, since the welding torch needs to continuously provide high temperature to melt the solder bars, after the welding torch is used for a period of time, the tip of the welding torch is prone to overheating. When continuing to solder the connector pins at this time, it is easy to cause excessive melting of the solder material, resulting in problems such as false soldering, cold soldering, or too large solder joints, thereby affecting the welding quality.

[0005] A connector pin welding device described in the present invention includes a welding table, an installation frame is fixedly connected to the welding table, a longitudinal adjustment slide rail is installed at one end of the installation frame away from the welding table, a transverse adjustment slide rail is installed on the longitudinal adjustment slide rail, a connecting seat is installed on the transverse adjustment slide rail, and an electric push rod is installed at one end of the connecting seat away from the transverse adjustment slide rail; A rotation component, which is arranged at one end of the electric push rod and is used to cooperate with the electric push rod for use; An air suction component, which is arranged on the welding table and is used to cooperate with the rotation component for use.

[0006] As a preferred embodiment of the connector pin welding device provided by the present invention, the rotation component includes an adjustment box, the adjustment box is fixedly connected to the mobile end of the electric push rod, a circular groove is opened inside one end of the adjustment box, a rotating shaft is rotatably connected to the center of the circular groove, a square adjustment block is connected to the middle of the rotating shaft, a plurality of groups of grooves are circumferentially opened at one end of the square adjustment block, a spring column is installed inside the other end of the adjustment box away from the circular groove, a clamping ball is connected to the mobile end of the spring column, one end of the rotating shaft penetrates through the inside of the adjustment box and is fixedly connected to an installation seat, and a plurality of groups of welding torches are circumferentially installed on the installation seat.

[0007] As a preferred embodiment of the connector pin welding device provided by the present invention, the rotation component further includes a first connecting frame and an adjustment chute. The first connecting frame is connected to the fixed end of the electric push rod. The adjustment chute is opened inside one end of the adjustment box. One end of the first connecting frame away from the electric push rod is fixedly connected with a plug rod. The end of the plug rod away from the first connecting frame is slidably connected to the inside of the adjustment chute. A runner is rotated at one end of the plug rod close to the adjustment chute.

[0008] As a preferred embodiment of the connector pin welding device provided by the present invention, the air suction component includes an air suction box and a pump. The air suction box is fixedly connected to the mobile end of the electric push rod. The pump is installed at the bottom end of the welding table. Multiple air suction holes are opened at one end of the air suction box. An air suction pipe is connected between the end of the air suction box away from the air suction holes and the air extraction end of the pump.

[0009] As a preferred embodiment of the connector pin welding device provided by the present invention, the air suction component further includes a filter box and a purification box. Both the filter box and the purification box are installed at the bottom end of the welding table. One end of the filter box is connected to the exhaust end of the pump. A connecting pipe is connected between the bottom of the end of the filter box away from the pump and the top of one end of the purification box. A filter plate is installed at one end of the filter box close to the pump. An activated carbon adsorption plate is installed at one end of the filter box away from the pump. A stirring rod is installed inside the purification box through a bearing. An exhaust pipe is connected to one end of the purification box.

[0010] As a preferred embodiment of the connector pin welding device provided by the present invention, the air suction component further includes a servo motor and a lead screw. The servo motor is installed on the outer wall of one end of the purification box. The output end of the servo motor is connected to the stirring rod. The lead screw is rotatably installed inside the filter box. One end of the lead screw passes through the inside of the filter box and is connected to the output end of the servo motor through a pulley set. A first scraper in contact with the filter plate is connected to the lead screw nut pair at one end of the lead screw located inside the filter box.

[0011] As a preferred embodiment of the connector pin welding device provided by the present invention, a cleaning frame is slidably penetrated inside one end of the air suction box. A second scraper is fixedly connected to one end of the cleaning frame located in the air suction box. A first trapezoidal block is fixedly connected to the end of the cleaning frame away from the air suction box. The fixed end of the electric push rod is fixedly connected with a second trapezoidal block opposite to the position of the first trapezoidal block through a second connecting frame.

[0012] As a preferred embodiment of the connector pin welding device provided by the present invention, a guide rod slidably penetrates through one end of the suction box away from the cleaning rack. One end of the guide rod located inside the suction box is fixedly connected to a baffle plate. A return spring is arranged between the baffle plate and the second squeegee. A limiting plate is fixedly connected to the inside of one end of the suction box away from the cleaning rack. One end of the suction box is communicated with a collection box.

[0013] As a preferred embodiment of the connector pin welding device provided by the present invention, a plurality of wire bundling racks are installed on the connecting seat and the welding table. The suction pipe is slidably connected to the inside of the plurality of wire bundling racks.

[0014] As a preferred embodiment of the connector pin welding device provided by the present invention, a reinforcing rod is fixedly connected to one end of the transverse adjustment slide rail away from the longitudinal adjustment slide rail. A receiving chute for one end of the reinforcing rod to slide is provided on the longitudinal adjustment slide rail.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: Through the rotation component, after the welding torch completes the welding of the connector pins placed on the welding table, when the moving end of the electric push rod extends into the fixed end, the positions of multiple welding torches can be automatically exchanged to prevent the phenomenon of overheating of the welding torch caused by continuous use of a single welding torch for welding.

[0016] Under the action of the pump, the suction box, the suction holes and the suction pipe, the fumes generated in the welding area can be extracted and discharged into the filter box, and the purification quality of the gas can be improved by the activated carbon adsorption plate and the neutralizing liquid inside the purification box, so as to ensure the purification quality of the gas, achieve timely removal of fumes and toxic gases from the welding area, and improve the working environment of workshop workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is one of the overall structural schematic diagrams of the present invention.

[0018] Figure 2 is one of the overall structural schematic diagrams of the present invention.

[0019] Figure 3 is the schematic diagram of the transverse adjustment slide rail in the present invention.

[0020] Figure 4 is the connection schematic diagram of the electric push rod and the adjustment box in the present invention.

[0021] Figure 5 is the connection schematic diagram of the adjustment box and the circular groove in the present invention.

[0022] Figure 6 is one of the cross-sectional views of the adjustment box in the present invention.

[0023] Figure 7It is one of the cross-sectional views of the adjustment box in the present invention.

[0024] Figure 8 It is an exploded view of the suction box in the present invention.

[0025] Figure 9 It is a schematic connection diagram of the pump, the filter box and the purification box in the present invention.

[0026] Figure 10 It is a cross-sectional view of the filter box and the purification box in the present invention.

[0027] In the figure: 1, welding table; 2, mounting rack; 3, longitudinal adjustment slide rail; 4, transverse adjustment slide rail; 5, connecting seat; 6, electric push rod; 7, adjustment box; 8, circular groove; 9, rotating shaft; 10, square adjustment block; 11, groove; 12, spring post; 13, clamping ball; 14, first connecting frame; 15, inserting rod; 16, runner; 17, adjustment chute; 18, filter box; 19, purification box; 20, connecting pipe; 21, filter plate; 22, activated carbon adsorption plate; 23, exhaust pipe; 24, servo motor; 25, stirring rod; 26, lead screw; 27, pulley set; 28, first scraper; 29, cleaning frame; 30, second scraper; 31, first trapezoidal block; 32, second connecting frame; 33, second trapezoidal block; 34, guide rod; 35, baffle; 36, limiting plate; 37, return spring; 38, collection box; 39, mounting seat; 40, welding torch; 41, wire harness holder; 42, reinforcing rod; 43, receiving chute; 44, suction box; 45, suction hole; 46, suction pipe; 47, pump. Detailed implementation manners

[0028] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0029] It should be noted that, without conflict, the embodiments in the present invention and the features and technical solutions in the embodiments can be combined with each other.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0031] Embodiment 1 As Figures 1 - 10As shown in the figure, a connector pin welding device includes a welding table 1, which is the basic support platform for the entire welding device and is used to place the connector pins to be welded and related components. An installation frame 2 is fixedly connected to the welding table 1. A longitudinal adjustment slide rail 3 is installed at one end of the installation frame 2 away from the welding table 1. A transverse adjustment slide rail 4 is installed on the longitudinal adjustment slide rail 3. A connection seat 5 is installed on the transverse adjustment slide rail 4. An electric push rod 6 is installed at one end of the connection seat 5 away from the transverse adjustment slide rail 4.

[0032] A rotation component is arranged at one end of the electric push rod 6 and is used to cooperate with the electric push rod 6 for use.

[0033] An air suction component is arranged on the welding table 1 and is used to cooperate with the rotation component for use.

[0034] Embodiment 2 As Figures 1 - 7 shown in the figure, the rotation component includes an adjustment box 7. The adjustment box 7 is fixedly connected to the mobile end of the electric push rod 6. A circular groove 8 is opened inside one end of the adjustment box 7. A rotating shaft 9 is rotatably connected to the center of the circular groove 8. A square adjustment block 10 is connected to the middle of the rotating shaft 9. A plurality of groups of grooves 11 are circumferentially opened at one end of the square adjustment block 10. A spring column 12 is installed inside the end of the adjustment box 7 away from the circular groove 8. A clamping ball 13 is connected to the mobile end of the spring column 12. One end of the rotating shaft 9 penetrates through the inside of the adjustment box 7 and is fixedly connected with a mounting seat 39. A plurality of groups of welding torches 40 are circumferentially installed on the mounting seat 39.

[0035] As Figures 1 - 7 shown in the figure, the rotation component further includes a first connecting frame 14 and an adjustment chute 17. The first connecting frame 14 is connected to the fixed end of the electric push rod 6. The adjustment chute 17 is opened inside one end of the adjustment box 7. A plug rod 15 is fixedly connected to the end of the first connecting frame 14 away from the electric push rod 6. The end of the plug rod 15 away from the first connecting frame 14 is slidably connected to the inside of the adjustment chute 17. A rotating wheel 16 is rotated at one end of the plug rod 15 close to the adjustment chute 17.

[0036] During operation, by placing the connector and pins to be welded on the welding table 1, according to the welding area, the position of the welding torch 40 can be flexibly adjusted through the longitudinal adjustment slide rail 3 and the transverse adjustment slide rail 4. This way of adjusting the position of the welding torch 40 is a common existing technology. And the position of the welding torch 40 can be controlled to move towards the position close to the welding area through the mobile end of the electric push rod 6 for soldering operation. In this process, the length of the mobile end of the electric push rod 6 extending into the fixed end is relatively short, mainly used to achieve a short-distance change in the position between the welding torch 40 and the welding area, to avoid collision between the welding torch 40 and the connector and pins in the welding area. At the same time, when the welding is completed, in order to facilitate the taking of the welded connector and pins, by controlling the mobile end of the electric push rod 6 to completely extend into the fixed end.

[0037] In the above steps, when the moving end of the electric push rod 6 fully extends into the fixed end, one end of the inserting rod 15 will gradually move towards the adjusting box 7 and insert into the adjusting box 7 through the adjusting chute 17. During the insertion process, one end of the rotating wheel 16 will contact a corner of the edge of the square adjusting block 10 and use this corner of the edge as the force application point to continuously push the square adjusting block 10 and the rotating shaft 9 to rotate until the square adjusting block 10 completes a 90-degree rotation. When welding the subsequent connector pins, the moving end of the electric push rod 6 gradually extends out of the fixed end and approaches the welding area. During this process, one end of the inserting rod 15 will gradually move away from the adjusting box 7. At this time, the clamping ball 13 located at the edge of a group of grooves 11 drives the square adjusting block 10 to slightly rotate under the elastic force of the spring column 12, so that the clamping ball 13 is completely clamped into the groove 11 to complete the locking of the square adjusting block 10 and reduce the occurrence of the phenomenon that the square adjusting block 10 rotates randomly. When the square adjusting block 10 rotates, the mounting seat 39 and multiple welding torches 40 are synchronously driven to rotate through the rotating shaft 9, so as to achieve the effect of automatically exchanging the positions of multiple welding torches 40 after completing the welding of the connector pins placed on the welding table 1, preventing the overheating of the welding torch 40 caused by continuously using a group of welding torches 40 for welding, and thus improving the welding quality.

[0038] Embodiment III As Figure 1 、 Figure 9 、 Figure 10 shown, the air suction assembly includes an air suction box 44 and a pump 47. The air suction box 44 is fixedly connected to the moving end of the electric push rod 6. The pump 47 is installed at the bottom end of the welding table 1. Multiple air suction holes 45 are opened at one end of the air suction box 44. An air suction pipe 46 is connected between the end of the air suction box 44 far from the air suction holes 45 and the air extraction end of the pump 47.

[0039] As Figure 1 、 Figure 9 、 Figure 10 shown, the air suction assembly further includes a filter box 18 and a purification box 19. The filter box 18 and the purification box 19 are both installed at the bottom end of the welding table 1. One end of the filter box 18 is connected to the exhaust end of the pump 47. A connecting pipe 20 is connected between the bottom of the end of the filter box 18 far from the pump 47 and the top of one end of the purification box 19. A filter plate 21 is installed at one end of the filter box 18 close to the pump 47. An activated carbon adsorption plate 22 is installed at one end of the filter box 18 far from the pump 47. A stirring rod 25 is installed in the purification box 19 through a bearing. An exhaust pipe 23 is connected to one end of the purification box 19.

[0040] As Figure 1 、 Figure 9 、 Figure 10As shown in the figure, the air intake assembly further includes a servo motor 24 and a lead screw 26. The servo motor 24 is installed on the outer wall of one end of the purification box 19. The output end of the servo motor 24 is connected to the stirring rod 25. The lead screw 26 is rotatably installed inside the filter box 18. One end of the lead screw 26 passes through the inside of the filter box 18 and is connected to the output end of the servo motor 24 through a pulley set 27. A first scraper 28 that contacts the filter plate 21 is connected to the lead screw nut pair at one end of the lead screw 26 located inside the filter box 18.

[0041] During operation, during the welding process, by starting the pump 47, at this time the pump 47 generates a negative pressure, and under the action of the suction pipe 46, the suction box 44 sucks the fumes generated in the welding area through the suction holes 45. At the same time, the pump 47 discharges the extracted toxic gases and fumes into the filter box 18, and intercepts large debris through the filter plate 21, improving the service life of the activated carbon adsorption plate 22. At the same time, the activated carbon adsorption plate 22 can adsorb toxic gases to achieve a purification effect. Subsequently, the gas flows into the purification box 19 through the connecting pipe 20 and contacts the neutralizing liquid inside the purification box 19 to further ensure the purification quality of the gas. Finally, it is discharged through the exhaust pipe 23, achieving the timely removal of fumes and toxic gases from the welding area and improving the working environment of workshop workers.

[0042] At the same time, start the servo motor 24 to rotate intermittently forward and backward, which can drive the stirring rod 25 to stir the neutralizing liquid inside the purification box 19, making the neutralizing liquid more evenly distributed in the purification box 19, increasing its contact area and reaction efficiency with the gas, thereby further improving the purification effect. And through the transmission effect of the pulley set 27, it drives the lead screw 26 to rotate intermittently forward and backward, so that the first scraper 28 reciprocally cleans the surface of the filter plate 21 to reduce the occurrence of impurity blockage of the filter plate 21 and improve the fluidity of the gas passing through the filter plate 21.

[0043] Embodiment 4 As Figures 1 - 8 shown, a cleaning frame 29 slides through one end of the suction box 44. A second scraper 30 is fixedly connected to one end of the cleaning frame 29 located in the suction box 44. A first trapezoidal block 31 is fixedly connected to the end of the cleaning frame 29 away from the suction box 44. The fixed end of the electric push rod 6 is fixedly connected to a second trapezoidal block 33 opposite to the position of the first trapezoidal block 31 through a second connecting frame 32.

[0044] As Figures 1 - 8As shown in the figure, a guide rod 34 slides through one end of the suction box 44 away from the cleaning rack 29. One end of the guide rod 34 located inside the suction box 44 is fixedly connected with a baffle 35. A return spring 37 is arranged between the baffle 35 and the second scraper 30. A limiting plate 36 is fixedly connected inside one end of the suction box 44 away from the cleaning rack 29. One end of the suction box 44 is communicated with a collection box 38. An inlet is opened at one end of the collection box 38 communicated with the suction box 44. The inlet is located between the baffle 35 and the end of the suction box 44 away from the second scraper 30.

[0045] During operation, when the moving end of the electric push rod 6 gradually extends into the fixed end, at this time, the first trapezoidal block 31 contacts the inclined surface of the second trapezoidal block 33, and the inclined surface of the second trapezoidal block 33 squeezes the inclined surface of the first trapezoidal block 31, so that one end of the second trapezoidal block 33 pushes the cleaning rack 29 and the second scraper 30 to continuously move towards the direction close to the baffle 35 inside the suction box 44, so as to achieve the effect of cleaning the inside of the suction box 44, reduce the occurrence of blockage of the suction holes 45, and at the same time, when the cleaning rack 29 continuously moves towards the direction close to the baffle 35, the return spring 37 is continuously compressed, and under its elastic action, the guide rod 34 and the baffle 35 are pushed to continuously move away from the second scraper 30, and the inlet of the collection box 38 is opened, so that the impurities pushed by the second scraper 30 fall into the collection box 38.

[0046] When the moving end of the electric push rod 6 gradually extends out of the fixed end and approaches the welding area, under the elastic action of the return spring 37, the cleaning rack 29, the second scraper 30 and the baffle 35 are pushed to reset, so that the baffle 35 contacts the limiting plate 36. During this process, the effect of blocking the inlet of the collection box 38 is achieved, and the impurities inside the collection box 38 are reduced from being sucked into the suction box 44 again from the inlet under the suction force, so as to improve the cleaning effect of the suction box 44 and the suction holes 45.

[0047] Embodiment Five As Figures 1 - 4 shown, a plurality of wire bundling racks 41 are installed on the connecting seat 5 and the welding table 1. The suction pipe 46 is slidably connected inside the plurality of wire bundling racks 41.

[0048] As Figures 1 - 3 shown, a reinforcing rod 42 is fixedly connected to one end of the transverse adjustment slide rail 4 away from the longitudinal adjustment slide rail 3. A receiving chute 43 for one end of the reinforcing rod 42 to slide is opened on the longitudinal adjustment slide rail 3.

[0049] During operation, the wire bundling rack 41 is used to limit and guide the suction pipe 46, reducing the phenomenon of the suction pipe 46 coming into contact with the welding area. At the same time, one end of the reinforcing rod 42 located at the receiving chute 43 is T-shaped, and the inside of the receiving chute 43 is correspondingly T-shaped. The reinforcing rod 42 provides a certain supporting effect for the end of the transverse adjustment slide rail 4 far from the longitudinal adjustment slide rail 3, improving the stability of the transverse adjustment slide rail 4.

[0050] The usage process of a connector pin welding device provided by the present invention is as follows: By placing the connector and pins to be welded on the welding table 1, according to the welding area, the position of the welding torch 40 can be flexibly adjusted through the longitudinal adjustment slide rail 3 and the transverse adjustment slide rail 4. This way of adjusting the position of the welding torch 40 is a common existing technology. And the position of the welding torch 40 can be moved towards the position close to the welding area by controlling the moving end of the electric push rod 6 to perform soldering operation. During this process, the length of the moving end of the electric push rod 6 extending into the fixed end is short, mainly used to achieve a short-distance change in the position between the welding torch 40 and the welding area, avoiding collision between the welding torch 40 and the connector and pins in the welding area. At the same time, when the welding is completed, in order to facilitate the taking of the welded connector and pins, it is possible to control the moving end of the electric push rod 6 to completely extend into the fixed end. At the same time, when the moving end of the electric push rod 6 completely extends into the fixed end, one end of the insertion rod 15 will gradually move towards the direction close to the adjustment box 7 and insert into the adjustment box 7 through the adjustment chute 17. During the insertion process, one end of the rotating wheel 16 will contact a corner of the edge of the square adjustment block 10 and use this corner of the edge as a force application point to continuously push the square adjustment block 10 and the rotating shaft 9 to rotate until the square adjustment block 10 completes a 90-degree rotation. When welding subsequent connector pins, the moving end of the electric push rod 6 gradually extends out of the fixed end and approaches the welding area. During this process, one end of the insertion rod 15 will gradually move away from the adjustment box 7. At this time, the clamping ball 13 located at the edge of a group of grooves 11 drives the square adjustment block 10 to rotate slightly under the elastic force of the spring column 12, so that the clamping ball 13 is completely clamped into the groove 11 to complete the locking of the square adjustment block 10, reducing the phenomenon of random rotation of the square adjustment block 10. When the square adjustment block 10 rotates, the mounting seat 39 and multiple welding torches 40 are synchronously driven to rotate through the rotating shaft 9, so as to achieve the effect of automatically exchanging the positions of multiple welding torches 40 after completing the welding of the connector pins placed on the welding table 1, preventing the overheating of the welding torch 40 caused by continuous use of a single welding torch 40 for welding, thereby improving the welding quality. And during the welding process, by starting the pump 47, at this time the pump 47 generates negative pressure, and under the action of the suction pipe 46, the suction box 44 sucks the dust generated in the welding area through the suction holes 45. At the same time, the pump 47 discharges the extracted toxic gases and dust into the filter box 18, and intercepts large debris through the filter plate 21, improving the service life of the activated carbon adsorption plate 22. At the same time, the activated carbon adsorption plate 22 can adsorb toxic gases to achieve a purification effect. Subsequently, the gas flows into the purification box 19 through the connecting pipe 20 and contacts the neutralizing liquid inside the purification box 19 to further ensure the purification quality of the gas. Finally, it is discharged through the exhaust pipe 23, achieving the timely removal of dust and toxic gases from the welding area and improving the working environment of workshop workers.

[0051] In the present invention, the description of the direction and relative positional relationship of the structure, such as the description of front, back, left, right, up, and down, does not constitute a limitation on the present invention and is only for convenience of description.

Claims

1. A connector pin welding device, characterized in that: The invention comprises a welding table (1), a mounting frame (2) being fixedly connected to the welding table (1), a longitudinal adjustment rail (3) being mounted on one end of the mounting frame (2) away from the welding table (1), a transverse adjustment rail (4) being mounted on the longitudinal adjustment rail (3), a connecting seat (5) being mounted on the transverse adjustment rail (4), and an electric push rod (6) being mounted on one end of the connecting seat (5) away from the transverse adjustment rail (4); A rotation assembly, which is arranged at one end of the electric push rod (6), and the rotation assembly is used in conjunction with the electric push rod (6); An air suction component is arranged on a welding table (1), and the air suction component is used in conjunction with a rotation component.

2. A connector pin welding device according to claim 1, characterized in that: The rotation assembly comprises an adjustment box (7), the adjustment box (7) being fixedly connected to the movable end of the electric push rod (6), a circular groove (8) being provided inside one end of the adjustment box (7), a rotating shaft (9) being rotatably connected to the center of the circular groove (8), a square adjustment block (10) being connected to the middle of the rotating shaft (9), a plurality of groups of grooves (11) being provided around one end of the square adjustment block (10), a spring column (12) being installed inside the end of the adjustment box (7) away from the circular groove (8), a clamping ball (13) being connected to the movable end of the spring column (12), one end of the rotating shaft (9) penetrating the interior of the adjustment box (7) and being fixedly connected to a mounting seat (39), a plurality of groups of welding guns (40) being mounted around the mounting seat (39).

3. A connector pin welding device according to claim 2, characterized in that: The rotation assembly further comprises a first connecting frame (14) and an adjusting slot (17), wherein the first connecting frame (14) is connected to a fixed end of the electric push rod (6), and the adjusting slot (17) is arranged inside one end of the adjusting box (7). An insert rod (15) is fixedly connected to the end of the first connecting frame (14) away from the electric push rod (6), and the end of the insert rod (15) away from the first connecting frame (14) is slidably connected to the inside of the adjusting slot (17), and a rotating wheel (16) is rotatably provided at the end of the insert rod (15) close to the adjusting slot (17).

4. A connector pin welding device according to claim 1, characterized in that: The suction assembly comprises a suction box (44) and a pump (47). The suction box (44) is fixedly connected to the movable end of the electric push rod (6). The pump (47) is installed at the bottom end of the welding table (1). One end of the suction box (44) is provided with a plurality of suction holes (45). An suction pipe (46) is connected between the end of the suction box (44) away from the suction holes (45) and the suction end of the pump (47).

5. A connector pin welding device according to claim 4, characterized in that: The air suction assembly further comprises a filter box (18) and a purification box (19), both of which are mounted at the bottom end of the welding table (1), one end of the filter box (18) is connected to the exhaust end of the pump (47), the bottom of the end of the filter box (18) away from the pump (47) is connected to the top of the purification box (19) via a connecting pipe (20), a filter plate (21) is mounted at the end of the filter box (18) close to the pump (47), an activated carbon adsorption plate (22) is mounted at the end of the filter box (18) away from the pump (47), a stirring rod (25) is mounted inside the purification box (19) via a bearing, and one end of the purification box (19) is connected to an exhaust pipe (23).

6. A connector pin welding device according to claim 5, characterized in that: The air suction assembly further comprises a servo motor (24) and a screw (26); the servo motor (24) is mounted on an outer wall at one end of the purification box (19); an output end of the servo motor (24) is connected to a stirring rod (25); the screw (26) is rotatably mounted inside the filter box (18); one end of the screw (26) passes through the inside of the filter box (18) and is connected to the output end of the servo motor (24) via a pulley group (27); a screw nut pair at one end of the screw (26) located inside the filter box (18) is connected to a first scraper (28) in contact with the filter plate (21).

7. A connector pin welding device according to claim 4, characterized in that: A cleaning frame (29) is slidably inserted into one end of the suction box (44); a second scraper (30) is fixedly connected to one end of the cleaning frame (29) located at the suction box (44); a first trapezoidal block (31) is fixedly connected to one end of the cleaning frame (29) away from the suction box (44); and a second trapezoidal block (33) opposite to the first trapezoidal block (31) is fixedly connected to the fixed end of the electric push rod (6) via a second connecting frame (32).

8. A connector pin welding device according to claim 7, characterized in that: A guide rod (34) is slidably penetrated through one end of the suction box (44) away from the cleaning frame (29); a baffle (35) is fixedly connected to one end of the guide rod (34) located inside the suction box (44); a return spring (37) is provided between the baffle (35) and the second scraper (30); a limit plate (36) is fixedly connected to the inside of one end of the suction box (44) away from the cleaning frame (29); and one end of the suction box (44) is connected to a collection box (38).

9. A connector pin welding device according to claim 4, characterized in that: A plurality of wire harness racks (41) are installed on the connection seat (5) and the welding table (1), and the air suction pipe (46) is slidably connected to the inside of the plurality of wire harness racks (41).

10. A connector pin welding device according to claim 1, characterized in that: One end of the transverse adjustment slide rail (4) away from the longitudinal adjustment slide rail (3) is fixedly connected to a reinforcement rod (42), and the longitudinal adjustment slide rail (3) is provided with a receiving slide groove (43) for sliding one end of the reinforcement rod (42).

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