Welding equipment for connecting terminal of wire-to-board connector

Abstract

The invention relates to the technical field of welding, and discloses a welding device for a wire-to-board connector connecting terminal, which comprises a manipulator and a barrel, the top end of the barrel is fixedly connected to an arm of the manipulator, the bottom end of the barrel is open, the inner wall of the barrel is fixedly connected with a partition plate, and the partition plate is fixedly connected with a wire-to-board connector connecting terminal. A telescopic rod is slidably connected to the lower surface of the partition plate, a lifting round block is fixedly connected to the bottom end of the telescopic rod, an electric soldering iron is fixedly connected to the bottom end of the lifting round block, the bottom end of the electric soldering iron penetrates through the barrel and extends to the outside of the barrel, and a lifting sleeve is slidably connected to the inner wall of the barrel. The welding equipment for the connecting terminal of the wire-to-board connector can effectively solve the problem that in the prior art, soldering tin is prone to adhering to the surface of an electric soldering iron, the electric soldering iron is difficult to directly preheat the subsequent connecting terminal, and therefore welding between the connecting terminal and a wire is affected.

Description

Technical Field

[0001] The present invention relates to the technical field of welding, and particularly relates to a welding device for connecting terminals of a wire-to-board connector. Background Art

[0002] A wire-to-board connector is an electronic component mainly used to establish a reliable electrical connection between a wire and a printed circuit board. During the production and processing of a wire-to-board connector, a welding device is usually used to weld a wire to the connecting terminal of the connector. First, the soldering iron tip of the soldering iron contacts the connecting terminal of the connector to preheat it, so that the connecting terminal reaches an appropriate temperature to better absorb solder. Then, the solder wire is sent to the junction of the soldering iron tip and the welding part, and the solder wire melts under the action of heat and evenly fills the gap between the connecting terminal and the wire. After welding, the soldering iron tip is immediately removed, and the welding part is allowed to cool naturally to form a firm connection.

[0003] Currently, during the process of welding the connecting terminals of a wire-to-board connector, due to the strong fluidity of the melted solder, the solder easily adheres to the surface of the soldering iron, resulting in difficulty for the soldering iron to directly preheat subsequent connecting terminals, thereby affecting the welding effect between the connecting terminals and the wire. Summary of the Invention

[0004] Aiming at the above-mentioned drawbacks of the prior art, the present invention provides a welding device for connecting terminals of a wire-to-board connector, which can effectively solve the problem in the prior art that the solder easily adheres to the surface of the soldering iron, resulting in difficulty for the soldering iron to directly preheat subsequent connecting terminals, thereby affecting the welding between the connecting terminals and the wire.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: The present invention provides a welding device for connecting terminals of a wire-to-board connector, including: A manipulator; A cylinder body, the top end of the cylinder body is fixedly connected to the arm of the manipulator, the bottom end of the cylinder body is open, a partition is fixedly connected to the inner wall of the cylinder body, a telescopic rod is slidably connected to the lower surface of the partition, a lifting round block is fixedly connected to the bottom end of the telescopic rod, a soldering iron is fixedly connected to the bottom end of the lifting round block, the bottom end of the soldering iron penetrates through the cylinder body and extends to the outside of the cylinder body, and a lifting sleeve is slidably connected to the inner wall of the cylinder body; Wherein, a rotating upper ring and a rotating lower ring are sequentially rotatably connected to the inner wall of the lifting sleeve from top to bottom; During the process that the lifting circular block drives the soldering iron to move upward, it first drives the bottom end of the soldering iron into the interior of the cylinder body, then drives the second sponge scraping strip arranged below the rotating lower ring to rotate by a certain angle so that the second sponge scraping strip contacts the outer surface of the soldering iron, and finally drives the second sponge scraping strip and the first sponge scraping strip arranged on the inner sides of the rotating lower ring and the rotating upper ring to scrape along the outer surface of the soldering iron.

[0006] Furthermore, the top end of the lifting sleeve is fixedly connected with an L-shaped push rod, the circumferential outer surface of the lifting sleeve is fixedly connected with a guiding strip, a guiding groove is formed in the inner wall of the cylinder body, the guiding strip is slidably connected inside the guiding groove, a pushing block is fixedly connected to the circumferential outer surface of the lifting circular block, and a compression spring is fixedly connected between the bottom end of the lifting sleeve and the inner bottom wall of the cylinder body.

[0007] Furthermore, a plug rod is fixedly connected between the rotating upper ring and the rotating lower ring, a rotating middle ring is slidably connected to the circumferential outer surface of the plug rod, and a pushing folding block is fixedly connected to the lower surface of the rotating middle ring; During this process, a sliding ring is rotatably connected to the circumferential outer surface of the rotating middle ring, a lifting sliding groove is formed in the inner wall of the lifting sleeve, and the sliding ring is slidably connected inside the lifting sliding groove; The lifting sliding groove includes an upper flat groove, a lower flat groove and a spiral groove, and the upper flat groove and the lower flat groove are communicated through the spiral groove.

[0008] Furthermore, a connecting upper strip is fixedly connected to the inner wall of the rotating upper ring, a connecting upper ring is fixedly connected to the end of the connecting upper strip away from the rotating upper ring, a connecting lower strip is fixedly connected to the inner wall of the rotating lower ring, and a connecting lower ring is fixedly connected to the end of the connecting lower strip away from the rotating lower ring; An L-shaped rod is fixedly connected to the top of the connecting upper strip, a connecting strip is fixedly connected to the inner wall of the cylinder body, a guiding sliding rail is fixedly connected to the side of the connecting strip away from the cylinder body, and the horizontal end of the L-shaped rod is slidably connected inside the guiding sliding rail; The guiding sliding rail includes a vertical sliding rail and a spiral sliding rail, and the top end of the vertical sliding rail is communicated with the bottom end of the spiral sliding rail.

[0009] Furthermore, a shaft block is rotatably connected to the outer surface of the connecting lower strip, a Y-shaped rod is rotatably sleeved on the circumferential outer surface of the shaft block, the top end of the Y-shaped rod is rotatably connected to an upper pushing cylinder, both lower ends of the Y-shaped rod are rotatably connected to lower pushing cylinders, and a rotating strip is rotatably sleeved on the circumferential outer surface of the lower pushing cylinder.

[0010] Furthermore, the upper and lower ends of the first sponge scraping strip are respectively fixedly connected to the inner walls of the connecting upper ring and the connecting lower ring, and the second sponge scraping strip is fixedly connected to the side of the rotating strip away from the lower pushing cylinder.

[0011] Further, an electric telescopic rod is fixedly connected to the upper surface of the partition plate. The telescopic end of the electric telescopic rod penetrates through the partition plate and is fixedly connected to the telescopic rod. A guiding patch is fixedly connected to the lower surface of the partition plate.

[0012] The technical solution provided by the present invention has the following beneficial effects compared with the prior art: The present invention is provided with a lifting sleeve. By controlling the electric telescopic rod to drive the lifting round block and the soldering iron upward, the soldering iron enters the interior of the cylinder body. As Figure 9 shown, at this time, the lifting round block drives the lifting sleeve upward through the push block and the L push rod, so that the lifting round block drives the soldering iron and the lifting sleeve to move upward synchronously (the lifting sleeve and the soldering iron remain relatively stationary). The lifting sleeve drives the rotating upper ring and the rotating lower ring upward. The rotating upper ring drives the L rod upward through the connecting upper strip. Under the limiting action of the spiral slide rail, the L rod drives the connecting upper strip, the rotating upper ring, the inserting rod, and the rotating middle ring to rotate around the axis of the lifting sleeve. The rotating middle ring drives the sliding ring to slide along the lifting chute. Under the limiting action of the spiral groove, the sliding ring drives the rotating middle ring and the pushing folding block to move downward. The pushing folding block pushes the Y-shaped rod, the rotating strip, and the second sponge scraping strip to rotate around the axis of the shaft block, so that the two second sponge scraping strips are attached to both sides of the soldering iron (as Figure 10 shown). The rotating upper ring and the rotating lower ring drive the two first sponge scraping strips and the two second sponge scraping strips to scrape along the circumferential outer surface of the soldering iron. Under the scraping action of the first sponge scraping strip and the second sponge scraping strip, the first sponge scraping strip and the second sponge scraping strip scrape off the solder adhered to the circumferential outer surface of the soldering iron, so as to facilitate the soldering iron to directly preheat the subsequent connection terminals and avoid affecting the welding effect between the connection terminals and the wires. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0014] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present invention; Figure 2 It is a schematic diagram of the structure of the cylinder body of the embodiment of the present invention; Figure 3 It is a schematic diagram of the structure of the electric telescopic rod of the embodiment of the present invention; Figure 4 It is an exploded view of the cylinder body of the embodiment of the present invention; Figure 5Explosion schematic diagram of the lifting sleeve in the embodiment of the present invention; Figure 6 Structural schematic diagram of the lifting chute in the embodiment of the present invention; Figure 7 Structural schematic diagram of the rotating upper ring in the embodiment of the present invention; Figure 8 Structural schematic diagram of the Y-shaped rod in the embodiment of the present invention; Figure 9 Structural schematic diagram of the soldering iron entering the interior of the cylinder in the embodiment of the present invention; Figure 10 Structural schematic diagram of the second sponge scraping strip in contact with the soldering iron in the embodiment of the present invention.

[0015] The reference numerals in the figure respectively represent: 1, manipulator; 2, cylinder; 21, partition; 22, telescopic rod; 23, lifting round block; 24, soldering iron; 25, lifting sleeve; 251, L push rod; 2511, guiding sticker; 2512, guiding groove; 2513, push block; 2514, compression spring; 252, rotating upper ring; 2521, connecting upper strip; 2522, connecting upper ring; 2523, L rod; 2524, connecting strip; 2525, guiding slide rail; 25251, vertical slide rail; 25252, spiral slide rail; 253, rotating lower ring; 2531, connecting lower strip; 2532, connecting lower ring; 254, rotating middle ring; 2541, inserting rod; 2542, pushing folding block; 2543, sliding ring; 2544, lifting chute; 25441, upper flat groove; 25442, lower flat groove; 25443, spiral groove; 255, shaft block; 2551, Y-shaped rod; 2552, upper pushing cylinder; 2553, lower pushing cylinder; 2554, rotating strip; 256, first sponge scraping strip; 2561, second sponge scraping strip; 257, electric telescopic rod; 2571, guiding patch. Detailed implementation manners

[0016] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0017] The present invention will be further described below with reference to the embodiments. Embodiment

[0018] Please refer to Figures 1 - 10 , the present invention provides a technical solution: a soldering device for connecting terminals of a wire-to-board connector, comprising: Robot arm 1; Cylinder body 2, the top end of the cylinder body 2 is fixedly connected to the arm of the robot arm 1, the bottom end of the cylinder body 2 is open, a partition 21 is fixedly connected to the inner wall of the cylinder body 2, a telescopic rod 22 is slidably connected to the lower surface of the partition 21, the bottom end of the telescopic rod 22 is fixedly connected to a lifting round block 23, the bottom end of the lifting round block 23 is fixedly connected to a soldering iron 24, the bottom end of the soldering iron 24 penetrates through the cylinder body 2 and extends to the outside of the cylinder body 2, and a lifting sleeve 25 is slidably connected to the inner wall of the cylinder body 2; Among them, a rotating upper ring 252 and a rotating lower ring 253 are sequentially rotatably connected to the inner wall of the lifting sleeve 25 from top to bottom; Among them, during the process of the lifting round block 23 driving the soldering iron 24 to move upward, first drive the bottom end of the soldering iron 24 into the interior of the cylinder body 2, then drive the second sponge scraping strip 2561 arranged below the rotating lower ring 253 to rotate a certain angle so that the second sponge scraping strip 2561 contacts the outer surface of the soldering iron 24, and finally drive the second sponge scraping strip 2561 and the first sponge scraping strip 256 arranged inside the rotating lower ring 253 and the rotating upper ring 252 to scrape along the outer surface of the soldering iron 24.

[0019] An L-shaped push rod 251 is fixedly connected to the top end of the lifting sleeve 25, a guiding strip 2511 is fixedly connected to the circumferential outer surface of the lifting sleeve 25, a guiding groove 2512 is opened on the inner wall of the cylinder body 2, the guiding strip 2511 is slidably connected inside the guiding groove 2512, a pushing block 2513 is fixedly connected to the circumferential outer surface of the lifting round block 23, and a compression spring 2514 is fixedly connected between the bottom end of the lifting sleeve 25 and the inner bottom wall of the cylinder body 2.

[0020] A plug rod 2541 is fixedly connected between the rotating upper ring 252 and the rotating lower ring 253, a rotating middle ring 254 is slidably connected to the circumferential outer surface of the plug rod 2541, and a pushing folding block 2542 is fixedly connected to the lower surface of the rotating middle ring 254; Among them, a sliding ring 2543 is rotatably connected to the circumferential outer surface of the rotating middle ring 254, and a lifting sliding groove 2544 is opened on the inner wall of the lifting sleeve 25, and the sliding ring 2543 is slidably connected inside the lifting sliding groove 2544; Among them, the lifting sliding groove 2544 includes an upper flat groove 25441, a lower flat groove 25442 and a spiral groove 25443, and the upper flat groove 25441 and the lower flat groove 25442 are connected through the spiral groove 25443.

[0021] The inner wall of the rotating upper ring 252 is fixedly connected with a connecting upper strip 2521. One end of the connecting upper strip 2521 away from the rotating upper ring 252 is fixedly connected with a connecting upper ring 2522. The inner wall of the rotating lower ring 253 is fixedly connected with a connecting lower strip 2531. One end of the connecting lower strip 2531 away from the rotating lower ring 253 is fixedly connected with a connecting lower ring 2532; Among them, the top of the connecting upper strip 2521 is fixedly connected with an L-shaped rod 2523. The inner wall of the cylinder body 2 is fixedly connected with a connecting strip 2524. One side of the connecting strip 2524 away from the cylinder body 2 is fixedly connected with a guiding slide rail 2525. The horizontal end of the L-shaped rod 2523 is slidably connected inside the guiding slide rail 2525; Among them, the guiding slide rail 2525 includes a vertical slide rail 25251 and a spiral slide rail 25252. The top end of the vertical slide rail 25251 is communicated with the bottom end of the spiral slide rail 25252.

[0022] The outer surface of the connecting lower strip 2531 is rotatably connected with a shaft block 255. The outer circumferential surface of the shaft block 255 is rotatably sleeved with a Y-shaped rod 2551. The top end of the Y-shaped rod 2551 is rotatably connected with an upper pushing cylinder 2552. Both lower ends of the Y-shaped rod 2551 are rotatably connected with lower pushing cylinders 2553. The outer circumferential surface of the lower pushing cylinder 2553 is rotatably sleeved with a rotating strip 2554.

[0023] The upper and lower ends of the first sponge scraping strip 256 are respectively fixedly connected to the inner walls of the connecting upper ring 2522 and the connecting lower ring 2532. The second sponge scraping strip 2561 is fixedly connected to one side of the rotating strip 2554 away from the lower pushing cylinder 2553.

[0024] The upper surface of the partition plate 21 is fixedly connected with an electric telescopic rod 257. The telescopic end of the electric telescopic rod 257 penetrates through the partition plate 21 and is fixedly connected to the telescopic rod 22. The lower surface of the partition plate 21 is fixedly connected with a guiding patch 2571.

[0025] The contraction process of the electric soldering iron 24: In practical applications, the manipulator 1 is controlled to drive the cylinder body 2 and the soldering iron 24 close to the welding part of the connection terminal until the soldering iron 24 contacts the welding part of the connection terminal. Under the high-temperature heating action of the soldering iron 24, the soldering iron 24 preheats the connection terminal to make the connection terminal reach an appropriate temperature so as to better absorb the solder. Then, the solder wire is sent to the junction of the soldering iron 24 and the welding part, and the solder wire melts under the action of heat and evenly fills the gap between the connection terminal and the wire. After the welding is completed, the manipulator 1 is controlled to drive the soldering iron 24 to separate from the connection terminal. At this time, the electric telescopic rod 257 is started. The electric telescopic rod 257 drives the telescopic rod 22 to move upward along the inner wall of the guiding patch 2571 through its telescopic end. The telescopic rod 22 drives the lifting round block 23 at its bottom to move vertically upward. The lifting round block 23 drives the soldering iron 24 at its bottom to move vertically upward, so that the bottom end of the soldering iron 24 enters the interior of the cylinder body 2 along the bottom opening of the cylinder body 2. As Figure 9 shown, after the soldering iron 24 completely enters the interior of the cylinder body 2, at this time, the lifting round block 23 drives the two push blocks 2513 on its circumferential outer surface to move vertically upward for a certain distance, and the two push blocks 2513 contact the horizontal ends of the two L push rods 251. The lifting round block 23 continues to move upward. The lifting round block 23 pushes the two L push rods 251 to move upward synchronously through the two push blocks 2513 on its circumferential outer surface. Under the guiding action of the guiding groove 2512, the two L push rods 251 drive the lifting sleeve 25 and the guiding strip 2511 at their bottoms to move upward synchronously along the guiding groove 2512, so that the lifting round block 23 drives the soldering iron 24 and the lifting sleeve 25 to move upward synchronously (the lifting sleeve 25 and the soldering iron 24 remain relatively stationary); The fitting process of the second sponge scraping strip 2561: In practical applications, during the process of the lifting sleeve 25 moving upward along the guiding groove 2512, the lifting sleeve 25 drives the rotating upper ring 252 and the rotating lower ring 253 on its inner wall to move upward synchronously. The rotating upper ring 252 drives the two connecting upper strips 2521 on its inner wall to move upward. The two connecting upper strips 2521 drive the two L rods 2523 at their tops to move upward. As Figure 9As shown in the figure, the horizontal ends of the two L-shaped rods 2523 slide upward along the vertical slide rail 25251. After the horizontal ends of the two L-shaped rods 2523 slide upward by a certain distance, the horizontal ends of the two L-shaped rods 2523 continue to slide upward along the spiral slide rail 25252. Under the limiting action of the spiral slide rail 25252, the two upward-moving L-shaped rods 2523 drive the two connecting upper strips 2521 at their bottom ends to rotate around the axis of the rotating upper ring 252. The two connecting upper strips 2521 drive the rotating upper ring 252 and the connecting upper ring 2522 to rotate around the axis of the lifting sleeve 25. The rotating upper ring 252 drives a plurality of insertion rods 2541 at its bottom and a rotating lower ring 253 to rotate around the axis of the lifting sleeve 25. The plurality of insertion rods 2541 drive the rotating middle ring 254 on the outer surface of their circumferences to rotate around the axis of the lifting sleeve 25. The rotating middle ring 254 drives the two sliding rings 2543 on the outer surface of its circumference to slide along the upper flat groove 25441. After the two sliding rings 2543 slide along the upper flat groove 25441 by a certain distance, the two sliding rings 2543 slide downward along the spiral groove 25443. Under the limiting action of the spiral groove 25443, the two rotating sliding rings 2543 drive the rotating middle ring 254 to slide downward along the outer surface of the circumference of the insertion rod 2541. The downward-moving rotating middle ring 254 drives the two pushing folding blocks 2542 at its bottom to move downward, as Figure 8 shown in the figure. The two pushing folding blocks 2542 push the upper pushing cylinder 2552 to rotate downward around the axis of the shaft block 255 through their inclined ends. The two upper pushing cylinders 2552 drive the two Y-shaped rods 2551 to rotate around the axis of the shaft block 255. The two Y-shaped rods 2551 drive the lower pushing cylinder 2553 at their bottom ends to rotate toward the soldering iron 24 around the axis of the shaft block 255. The lower pushing cylinder 2553 drives the rotating bar 2554 to rotate toward the soldering iron 24 around the axis of the shaft block 255. The two rotating bars 2554 drive the two second sponge scraping bars 2561 to rotate toward the soldering iron 24 around the axis of the shaft block 255 until the two second sponge scraping bars 2561 are clamped on both sides of the soldering iron 24 (as Figure 10 shown in the figure). At this time, the two sliding rings 2543 are slidably connected along the lower flat groove 25442. Under the limiting action of the lower flat groove 25442, the two second sponge scraping bars 2561 are always attached to both sides of the soldering iron 24; The scraping process of the first sponge scraping bar 256 and the second sponge scraping bar 2561: In practical applications, the upper rotating ring 252 and the lower rotating ring 253 continue to rotate around the axis of the lifting sleeve 25. The lower rotating ring 253 drives the two connecting lower strips 2531 on its inner wall to rotate around the axis of the lifting sleeve 25. The two connecting lower strips 2531 drive the connecting lower ring 2532 to rotate around the axis of the lifting sleeve 25. Under the synchronous rotation of the connecting lower ring 2532 and the connecting upper ring 2522, the connecting lower ring 2532 and the connecting upper ring 2522 jointly drive the two first sponge scraping strips 256 on the inner wall to rotate around the axis of the lifting sleeve 25, so that the two first sponge scraping strips 256 scrape along the circumferential outer surface of the soldering iron 24. The two connecting lower strips 2531 drive the lower pushing cylinder 2553, the rotating strip 2554 and the second sponge scraping strip 2561 to rotate around the axis of the lifting sleeve 25 through the shaft block 255 and the Y-shaped rod 2551, so that the two second sponge scraping strips 2561 scrape along the circumferential outer surface of the soldering iron 24. Under the scraping action of the first sponge scraping strip 256 and the second sponge scraping strip 2561, the first sponge scraping strip 256 and the second sponge scraping strip 2561 scrape off the solder adhering to the circumferential outer surface of the soldering iron 24, so as to facilitate the soldering iron 24 to directly preheat the subsequent connecting terminals and avoid affecting the welding effect between the connecting terminals and the wires.

[0026] The extending process of the soldering iron 24: In practical applications, after the first sponge scraping strip 256 and the second sponge scraping strip 2561 finish removing the solder adhering to the soldering iron 24, the electric telescopic rod 257 is controlled to drive the lifting round block 23 to move vertically downward. The lifting round block 23 drives the soldering iron 24 and the push block 2513 to move downward. Under the self-elastic action of the compression spring 2514, the compression spring 2514 pulls the lifting sleeve 25 to slide downward along the guide groove 2512. The lifting sleeve 25 drives the horizontal end of the L push rod 251 to move downward close to the push block 2513 (the lifting sleeve 25 and the soldering iron 24 remain relatively stationary). The lifting sleeve 25 drives the L rod 2523 to slide downward along the spiral slide rail 25252. Under the limiting action of the spiral slide rail 25252, the two downward-moving L rods 2523 drive the connecting upper strip 2521, the upper rotating ring 252, the insertion rod 2541 and the middle rotating ring 254 to rotate around the axis of the lifting sleeve 25. The middle rotating ring 254 drives the sliding ring 2543 to slide along the lower flat groove 25442. After the sliding ring 2543 slides a certain distance along the upper flat groove 25441, the sliding ring 2543 slides upward along the spiral groove 25443. The sliding ring 2543 drives the middle rotating ring 254 and the pushing folding block 2542 to move upward, releasing the limit of the pushing folding block 2542 on the upper pushing cylinder 2552. Under the action of gravity, the Y-shaped rod 2551 drives the lower pushing cylinder 2553, the rotating strip 2554 and the second sponge scraping strip 2561 to rotate around the axis of the shaft block 255, so that the second sponge scraping strip 2561 is reset (as Figure 8(as shown in the figure), preventing the second sponge wiper strip 2561 and the rotating strip 2554 from blocking the downward movement of the soldering iron 24, the lifting round block 23 continues to drive the soldering iron 24 downward, so that the bottom end of the soldering iron 24 passes downward through the bottom opening of the cylinder body 2 along the bottom end of the cylinder body 2 (as Figure 2 shown).

[0027] In summary, by adopting the lifting sleeve 25, the present application has the following advantages: Advantage 1: By controlling the upward movement of the lifting round block 23, the lifting round block 23 drives the soldering iron 24 upward, so that the soldering iron 24 completely enters the interior of the cylinder body 2. The lifting round block 23 continues to move upward, and the lifting round block 23 drives the lifting sleeve 25 and the soldering iron 24 to move upward synchronously, so that the relative static state is maintained between the lifting sleeve 25 and the soldering iron 24. Then, the spiral slide rail 25252 drives the upper rotating ring 252 and the lower rotating ring 253 to rotate around the axis of the lifting sleeve 25, and the upper rotating ring 252 and the lower rotating ring 253 drive the first sponge wiper strip 256 to scrape along the outer surface of the soldering iron 24.

[0028] Advantage 2: The upper rotating ring 252 drives the middle rotating ring 254 to rotate around the axis of the lifting sleeve 25 through the inserting rod 2541. Under the limiting action of the spiral groove 25443, the middle rotating ring 254 drives the pushing folding block 2542 to move downward, and the pushing folding block 2542 pushes the upper pushing cylinder 2552 to rotate around the axis of the shaft block 255. The upper pushing cylinder 2552 drives the Y-shaped rod 2551, the lower pushing cylinder 2553 and the rotating strip 2554 to rotate around the axis of the shaft block 255 towards the soldering iron 24. The two rotating strips 2554 drive the two second sponge wiper strips 2561 to rotate around the axis of the shaft block 255 towards the soldering iron 24 until the two second sponge wiper strips 2561 are clamped on both sides of the soldering iron 24 (as Figure 10 shown). At this time, the two sliding rings 2543 are slidably connected along the lower flat groove 25442. Under the limiting action of the lower flat groove 25442, the two second sponge wiper strips 2561 are always attached to both sides of the soldering iron 24.

[0029] Advantage 3: During the process of the lower rotating ring 253 rotating around the axis of the lifting sleeve 25, the lower rotating ring 253 drives the two connecting lower strips 2531 to rotate around the axis of the lifting sleeve 25. The two connecting lower strips 2531 drive the lower pushing cylinder 2553, the rotating strip 2554 and the second sponge wiper strip 2561 to rotate around the axis of the lifting sleeve 25 through the shaft block 255 and the Y-shaped rod 2551, so that the two second sponge wiper strips 2561 scrape along the outer surface of the soldering iron 24.

[0030] Advantage 4: By controlling the downward movement of the lifting circular block 23, under the action of the self-elasticity of the compression spring 2514, the compression spring 2514 pulls the lifting sleeve 25 downward. Under the limiting action of the spiral slide rail 25252, the rotating upper ring 252 and the rotating middle ring 254 rotate around the axis of the lifting sleeve 25. Under the limiting action of the spiral groove 25443, the rotating middle ring 254 drives the pushing folding block 2542 to move upward, releasing the limit of the pushing folding block 2542 on the upper pushing cylinder 2552. Under the action of gravity, the Y-shaped rod 2551 drives the lower pushing cylinder 2553, the rotating strip 2554 and the second sponge scraping strip 2561 to rotate around the axis of the shaft block 255, preventing the second sponge scraping strip 2561 and the rotating strip 2554 from blocking the downward movement of the soldering iron 24. The lifting circular block 23 continues to drive the soldering iron 24 to move downward, so that the bottom end of the soldering iron 24 passes downward through the bottom opening of the cylinder body 2 along the bottom end of the cylinder body 2 (as Figure 2 shown).

[0031] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the protection scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A welding device for connecting terminals of a wire-to-board connector, characterized in that: include: Robot (1); A cylinder (2), the top end of the cylinder (2) is fixedly connected to the arm of the manipulator (1), the bottom end of the cylinder (2) is open, the inner wall of the cylinder (2) is fixedly connected to a partition (21), the lower surface of the partition (21) is slidably connected to a telescopic rod (22), the bottom end of the telescopic rod (22) is fixedly connected to a lifting round block (23), the bottom end of the lifting round block (23) is fixedly connected to an electric soldering iron (24), the bottom end of the electric soldering iron (24) passes through the cylinder (2) and extends to the outside of the cylinder (2), and the inner wall of the cylinder (2) is slidably connected to a lifting sleeve (25); The inner wall of the lifting sleeve (25) is rotatably connected with a rotating upper ring (252) and a rotating lower ring (253) in sequence from top to bottom; In the process of the lifting ball (23) driving the electric soldering iron (24) to move upward, the lifting ball (23) first drives the bottom end of the electric soldering iron (24) to enter the interior of the cylinder (2), then drives the second sponge scraper (2561) arranged below the rotating lower ring (253) to rotate to a certain angle so that the second sponge scraper (2561) contacts the outer surface of the electric soldering iron (24), and finally drives the second sponge scraper (2561) and the first sponge scraper (256) arranged on the inner side of the rotating lower ring (253) and the rotating upper ring (252) to scrape along the outer surface of the electric soldering iron (24).

2. The welding device for connecting terminals of a wire-to-board connector according to claim 1, characterized in that: The top end of the lifting sleeve (25) is fixedly connected to an L push rod (251), the circumferential outer surface of the lifting sleeve (25) is fixedly connected to a guide strip (2511), the inner wall of the cylinder (2) is provided with a guide groove (2512), the guide strip (2511) is slidably connected inside the guide groove (2512), the circumferential outer surface of the lifting round block (23) is fixedly connected to a push block (2513), and a compression spring (2514) is fixedly connected between the bottom end of the lifting sleeve (25) and the inner bottom wall of the cylinder (2).

3. The welding device for connecting terminals of a wire-to-board connector according to claim 1, characterized in that: An insertion rod (2541) is fixedly connected between the rotating upper ring (252) and the rotating lower ring (253); a rotating middle ring (254) is slidably connected to the circumferential outer surface of the insertion rod (2541); and a pushing folding block (2542) is fixedly connected to the lower surface of the rotating middle ring (254); The outer circumferential surface of the rotating middle ring (254) is rotatably connected to a slip ring (2543), the inner wall of the lifting sleeve (25) is provided with a lifting slot (2544), and the slip ring (2543) is slidably connected inside the lifting slot (2544); The lifting groove (2544) comprises an upper flat groove (25441), a lower flat groove (25442) and a spiral groove (25443), and the upper flat groove (25441) and the lower flat groove (25442) are connected via the spiral groove (25443).

4. The welding device for connecting terminals of a wire-to-board connector according to claim 1, characterized in that: The inner wall of the rotating upper ring (252) is fixedly connected to an upper connecting strip (2521), and one end of the upper connecting strip (2521) away from the rotating upper ring (252) is fixedly connected to the upper connecting ring (2522); the inner wall of the rotating lower ring (253) is fixedly connected to a lower connecting strip (2531), and one end of the lower connecting strip (2531) away from the rotating lower ring (253) is fixedly connected to the lower connecting ring (2532); The top of the connecting bar (2521) is fixedly connected to an L-rod (2523), the inner wall of the cylinder (2) is fixedly connected to a connecting bar (2524), a side of the connecting bar (2524) away from the cylinder (2) is fixedly connected to a guide rail (2525), and the horizontal end of the L-rod (2523) is slidably connected to the inside of the guide rail (2525); The guide rail (2525) comprises a vertical rail (25251) and a spiral rail (25252), and the top end of the vertical rail (25251) is connected to the bottom end of the spiral rail (25252).

5. The welding device for connecting terminals of a wire-to-board connector according to claim 4, characterized in that: The outer surface of the connecting lower bar (2531) is rotatably connected to an axle block (255), the circumferential outer surface of the axle block (255) is rotatably sleeved with a Y-shaped rod (2551), the top of the Y-shaped rod (2551) is rotatably connected to an upper push tube (2552), the lower ends of the Y-shaped rod (2551) are rotatably connected to a lower push tube (2553), and the circumferential outer surface of the lower push tube (2553) is rotatably sleeved with a rotating bar (2554).

6. The welding device for connecting terminals of a wire-to-board connector according to claim 5, characterized in that: The upper and lower ends of the first sponge scraper (256) are respectively fixedly connected to the inner walls of the upper connecting ring (2522) and the lower connecting ring (2532), and the second sponge scraper (2561) is fixedly connected to the side of the rotating bar (2554) away from the lower push cylinder (2553).

7. The welding device for connecting terminals of a wire-to-board connector according to claim 1, characterized in that: An electric telescopic rod (257) is fixedly connected to the upper surface of the partition (21); a telescopic end of the electric telescopic rod (257) passes through the partition (21) and is fixedly connected to the telescopic rod (22); and a guide patch (2571) is fixedly connected to the lower surface of the partition (21).

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