Sound circuit board welding device with intelligent positioning function

Abstract

The invention relates to the technical field of circuit board welding, in particular to a sound circuit board welding device with an intelligent positioning function, which comprises a working plate, a control panel is mounted on the right side of the working plate, a positioning assembly is mounted on the upper surface of the working plate, and welding adjusting assemblies are mounted on the front and rear surfaces of the working plate. A conveying assembly is installed in the welding adjusting assembly, and a sliding assembly is installed at the lower end of the conveying assembly. The right side of the sound equipment circuit board can be abutted in advance through the positioning assembly, and when the right side of the sound equipment circuit board is in an abutted state, the front surface of the sound equipment circuit board is in a moving state, so that the right side and the front surface of the sound equipment circuit board can be abutted and positioned in sequence through rotation of the two groups of rotating plates; therefore, the positioning device can be suitable for sound equipment circuit boards with different lengths and widths, and the outer surfaces of the sound equipment circuit boards can be positioned in sequence.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of circuit board welding, in particular to a welding device for sound circuit board with intelligent positioning function. BACKGROUND

[0002] The welding of the circuit board mainly adopts tin soldering technology; the tin soldering technology uses tin alloy material as solder, the solder melts at a certain temperature, the metal welding part and the tin atoms are attracted, diffused and combined with each other to form an immersion bonding layer, the molten tin solder is diffused along the surface of the welding part by capillary suction to form an immersion of the solder and the welding part, which firmly bonds the components and the printed board together, has good conductivity, and the internal circuit board of the sound is also provided.

[0003] To this end, the prior art patent CN118400888B discloses a positioning device and method for circuit board welding, relating to the technical field of circuit board welding, comprising: a bottom support assembly; the sliding mechanism bottom is fixedly connected with the bottom support assembly; the auxiliary limiting mechanism is installed inside the sliding mechanism; the elastic support mechanism is connected with the sliding mechanism at both ends of the bottom; the welding machine mechanism is installed inside the elastic support mechanism; the automatic pushing mechanism bottom inner side is connected with the welding machine mechanism; the circuit board positioning and fixing mechanism is fixedly installed on the surface of the bottom support assembly, the electric welding pen has auxiliary support, and the sliding process is not easy to deviate.

[0004] However, in actual use, during the positioning of the circuit board, two groups of positioning mechanisms are used to fix the two sides of the circuit board at the same time, the sizes of the two sides of the circuit board are inconsistent, so that the circuit board is extruded when positioned at the same time, the circuit board is broken due to excessive stress, and the tin wire in the prior art cannot be intermittently conveyed, so that the tin wire is too short or too long when cooperating with the electric welding pen, causing the problem of circuit board welding failure, thereby limiting the overall use, so it is necessary to improve the above problems. SUMMARY

[0005] The purpose of the present application is to provide a welding device for audio circuit board with intelligent positioning function, to solve the problem of inconsistent size of the two sides of the circuit board when positioning the circuit board by two sets of positioning mechanisms at the same time, which will cause the circuit board to be squeezed and broken when positioning the circuit board at the same time, and the problem of solder wire being too short or too long when cooperating with the electric welding pen, resulting in the problem of circuit board welding failure, thereby limiting the overall use.

[0006] To achieve the above purpose, the present application provides the following technical scheme: a welding device for audio circuit board with intelligent positioning function, comprising a workbench, a control panel is installed on the right side of the workbench, a positioning assembly is installed on the upper surface of the workbench, a welding adjustment assembly is installed on the front and rear surfaces of the workbench, a conveying assembly is installed inside the welding adjustment assembly, and a sliding assembly is installed at the lower end of the conveying assembly. The positioning assembly comprises a positioning plate installed on the top surface of the workbench. The welding adjustment assembly comprises a mounting bracket and a bottom plate, the mounting bracket is installed on the front and rear surfaces of the workbench, an electromagnetic slide is installed on the top surface of the mounting bracket, and a sliding block is slidably installed inside the electromagnetic slide. The conveying assembly comprises an inclined frame and a guide cylinder, which are fixedly installed in sequence on the right side surface of the bottom plate. The sliding assembly comprises a fixed plate installed on the lower surface of the inclined frame.

[0007] Preferably, a cylinder body is installed at the lower end of the sliding block, the bottom plate is installed on the lower surface of the cylinder body, and an electric welding head body is installed inside the bottom plate.

[0008] Preferably, an installation block is slidably installed inside the inclined frame, a moving plate is installed on the right side of the installation block, a positioning ring is installed on the front surface of the moving plate, and a solder wire body is installed inside the positioning ring.

[0009] Preferably, the solder wire body is sleeved between the positioning ring and the guide cylinder, a resisting block is installed on the inner side wall of the guide cylinder, and a lower block is fixedly connected to the lower surface of the moving plate.

[0010] Preferably, a transmission mechanism is installed on the right side of the fixed plate, an arc-shaped block is installed on the right side of the transmission mechanism, a bidirectional motor is installed on the right side of the arc-shaped block, and a rotating impeller is installed on the right side output end of the bidirectional motor.

[0011] Preferably, the outer surface of the rotating impeller is uniformly and fixedly connected with a ratchet body, the back surface of the ratchet body is installed with an inverted block, and the rotating impeller and the ratchet body are installed below the movement plate.

[0012] Preferably, the right side of the transmission mechanism is installed with a worm gear, the lower surface of the worm gear is engagedly connected with a worm, the inside of the worm is installed with a lead screw body, and the outer surface of the lead screw body is installed with a mounting plate.

[0013] Preferably, the surface of the lead screw body is installed with a fixed frame on one side, and the inside of the fixed frame is installed with a movement cylinder.

[0014] Preferably, the front surface and the right back surface of the positioning plate are both installed with a positioning cylinder, the inside of the positioning cylinder is slidably installed with a sliding frame, the inner wall of the positioning cylinder is installed with a resisting spring on one side, the first telescopic cylinder is arranged around the front and back of the resisting spring, the right side of the sliding frame is installed with a ball, the right side of the ball is installed with a moving cylinder, and the ball is installed between the positioning cylinder and the moving cylinder.

[0015] Preferably, the inside of the working plate is installed with a driving motor, the output end of the driving motor is installed with a large gear, the left side of the large gear is engagedly connected with a small gear, the size of the small gear is smaller than that of the large gear, the top surfaces of the large gear and the small gear are both installed with a rotating plate, the inside of the positioning plate is provided with a sliding groove, the inside of the sliding groove is slidably installed with a moving frame, the left side of the moving frame is sequentially installed with a resisting pad and a second telescopic cylinder from top to bottom, and the end of the second telescopic cylinder away from the moving frame is installed on the inner wall of the positioning plate.

[0016] Compared with the prior art, the present application has the following beneficial effects: 1. The welding device for the sound circuit board with intelligent positioning function can position the right side of the sound circuit board in advance through the positioning assembly, and when the right side of the sound circuit board is in the resisting state, the front surface of the sound circuit board is in the moving state, so that the right side and the front surface of the sound circuit board can be positioned in sequence through the rotation of the two groups of rotating plates, thereby adapting to sound circuit boards with different length and width sizes for use, and the outer surface of the sound circuit board can be positioned in sequence.

[0017] 2. The welding device for the sound circuit board with intelligent positioning function can intermittently push the solder wire body and cooperate with the welding head body through the cooperation of the conveying assembly and the sliding assembly, and the movement plate can be restored to the original position to re-install a new solder wire body for use, thereby solving the problem that the solder wire body cannot be intermittently conveyed in the prior art, and the subsequent solder wire body can also be repositioned and installed for conveying again. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a perspective view of the structure of the present application; Figure 2 is a perspective view of the structure of the bottom plate and guide cylinder of the present application; Figure 3 is a perspective view of the structure of the inclined frame and moving plate of the present application; Figure 4 is a split view of the structure of the moving plate and rotating impeller of the present application; Figure 5 is a perspective view of the structure of the transmission mechanism and fixed frame of the present application; Figure 6 is a perspective view of the structure of the positioning plate of the present application; Figure 7 is a split view of the structure of the positioning cylinder and moving cylinder of the present application; Figure 8 is a perspective view of the structure of the positioning cylinder and moving cylinder of the present application; Figure 9 is a perspective view of the structure of the large gear and rotating plate of the present application; Figure 10 is a perspective view of the structure of the moving frame of the present application.

[0019] In the figure: 1, working plate; 2, control panel; 3, positioning plate; 4, mounting frame; 5, electromagnetic sliding block; 6, sliding block; 7, cylinder body; 8, bottom plate; 9, electric welding head body; 10, inclined frame; 11, mounting block; 12, moving plate; 13, positioning ring; 14, solder wire body; 15, guide cylinder; 16, abutting block; 17, lower block; 18, fixed plate; 19, transmission mechanism; 20, bidirectional motor; 21, rotating impeller; 22, arc-shaped block; 23, ratchet body; 24, inverted block; 25, worm gear; 26, worm; 27, screw body; 28, mounting plate; 29, moving cylinder; 30, fixed frame; 31, positioning cylinder; 32, sliding frame; 33, abutting spring; 34, ball; 35, moving cylinder; 36, driving motor; 37, large gear; 38, small gear; 39, rotating plate; 40, moving frame; 41, abutting pad; 42, second telescopic cylinder. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0021] Please refer to Figures 1-10 An embodiment provided by the present application: The welding device for the sound circuit board with intelligent positioning function, the electromagnetic slide 5, the cylinder body 7, the electric welding head body 9, the inclined frame 10, the bidirectional motor 20 and the driving motor 36 used in the application are all products that can be directly purchased in the market, the principles and connection modes are all the prior art known by the person skilled in the art, so it is not repeated here, including the workboard 1, the right side of the workboard 1 is installed with the control panel 2, the upper surface of the workboard 1 is installed with the positioning assembly, the front and rear surfaces of the workboard 1 are installed with the welding adjustment assembly, the inside of the welding adjustment assembly is installed with the conveying assembly, the lower end of the conveying assembly is installed with the sliding assembly; The positioning assembly includes the positioning plate 3, the positioning plate 3 is installed on the top surface of the workboard 1; The welding adjustment assembly includes the mounting frame 4 and the bottom plate 8, the mounting frame 4 is installed on the front and rear surfaces of the workboard 1, the top surface of the mounting frame 4 is installed with the electromagnetic slide 5, the inside of the electromagnetic slide 5 is slidably installed with the sliding block 6; The conveying assembly includes the inclined frame 10 and the guide cylinder 15, the inclined frame 10 and the guide cylinder 15 are sequentially fixedly installed on the right side surface of the bottom plate 8; The sliding assembly comprises a fixed plate 18 installed on the lower surface of the inclined frame 10. The lower end of the sliding block 6 is provided with a cylinder body 7, the bottom plate 8 is installed on the lower surface of the cylinder body 7, and the inside of the bottom plate 8 is provided with a welding head body 9. The inside of the inclined frame 10 is slidably provided with a mounting block 11, the right side of the mounting block 11 is provided with a movement plate 12, the front surface of the movement plate 12 is provided with a positioning ring 13, and the inside of the positioning ring 13 is provided with a solder wire body 14. The solder wire body 14 is sleeved between the positioning ring 13 and the guide cylinder 15, the inner side wall of the guide cylinder 15 is provided with a resisting block 16, and the lower surface of the movement plate 12 is fixedly connected with a lower block 17. When welding, the position of the sound circuit board has been positioned, the sliding block 6 slides in the electromagnetic sliding block 5 to the appropriate distance, then the bottom plate 8 is lowered to the welding point through the descending of the cylinder body 7, then the welding operation is carried out through the cooperation of the welding head body 9 and the solder wire body 14 in the guide cylinder 15, the solder wire body 14 is shortened after being welded in sequence, then the bidirectional motor 20 is started, the bidirectional motor 20 starts to rotate counterclockwise, then the bidirectional motor 20 drives the rotating impeller 21 to rotate, then the rotating impeller 21 drives the ratchet body 23 to rotate, since the ratchet body 23 is installed below the movement plate 12, the ratchet body 23 abuts against the back surface of the lower block 17, so as to drive the lower block 17 to slide downward, and the movement plate 12 slides downward in the inclined frame 10 through the connection of the mounting block 11, the sliding track of the movement plate 12 is limited through the inclined frame 10 and the mounting block 11, and the solder wire body 14 is limited through the arrangement of the two groups of positioning rings 13, so that the solder wire body 14 can slide downward in the guide cylinder 15, and the sliding track of the solder wire body 14 is limited through the guide cylinder 15.

[0022] The right side of the fixed plate 18 is provided with a transmission mechanism 19, the right side of the transmission mechanism 19 is provided with an arc block 22, the right side of the arc block 22 is provided with a bidirectional motor 20, and the right side output end of the bidirectional motor 20 is provided with a rotating impeller 21. The outer surface of the rotating impeller 21 is uniformly and fixedly connected with a ratchet body 23, the back surface of the ratchet body 23 is provided with an inverted block 24, and the rotating impeller 21 and the ratchet body 23 are installed below the movement plate 12. The right side of the transmission mechanism 19 is provided with a worm gear 25, the lower surface of the worm gear 25 is meshed and connected with a worm shaft 26, the inside of the worm shaft 26 is provided with a lead screw body 27, and the outer surface of the lead screw body 27 is provided with a mounting plate 28. The surface side of the lead screw body 27 is provided with a fixed frame 30, and the inside of the fixed frame 30 is provided with a movement cylinder 29. The ratchet body 23 starts to rotate, the subsequent solder wire body 14 can slide downwardly following the sliding of the movement plate 12, and then when the positioning ring 13 on the front end lower surface of the movement plate 12 abuts against the resisting block 16, at this time the bidirectional motor 20 starts to rotate clockwise, due to the arrangement of the arc block 22, when the bidirectional motor 20 rotates counterclockwise, the transmission mechanism 19 will not rotate, then when the bidirectional motor 20 rotates clockwise, the transmission mechanism 19 will be driven to rotate, then the transmission mechanism 19 will drive the worm gear 25 to rotate, the worm gear 25 is meshed with the worm shaft 26, then the worm shaft 26 drives the lead screw body 27 to rotate, the mounting plate 28 on the surface of the lead screw body 27 slides downwardly, then the mounting plate 28 drives the movement cylinder 29 to move, then the transmission mechanism 19 pushes the solder wire body 14 downwardly through the inside of the fixed frame 30, so that the solder wire body 14 is continuously pushed and used in cooperation with the electric welding head body 9. Through the cooperation of the conveying assembly and the sliding assembly, the solder wire body 14 can be intermittently pushed and used in cooperation with the electric welding head body 9, and the movement plate 12 can be restored to the original position to install a new solder wire body 14 for use, solving the problem that the solder wire body 14 cannot be intermittently conveyed in the prior art, and the subsequent solder wire body 14 can be repositioned and installed for conveying again.

[0023] At this time, the inside of the mounting plate 28 and the fixed frame 30 is provided with a guide rod, so that when the mounting plate 28 drives the movement cylinder 29 to move, the limiting effect is achieved, and the mounting plate 28 is fixedly connected with the movement cylinder 29, and when the rotating impeller 21 rotates clockwise, the inverted block 24 abuts against the front surface of the lower block 17, then the lower block 17 drives the movement plate 12 to move upwardly, and the lower block 17 is slowly restored to the original position, so that the movement plate 12 can move upwardly while the solder wire body 14 is pushed downwardly, and the pushing speed is greater than the upward movement speed of the movement plate 12.

[0024] The front surface and the right back surface of the positioning plate 3 are provided with positioning barrels 31, the inner side of the positioning barrel 31 is slidably provided with sliding frames 32, the inner wall of the positioning barrel 31 is provided with abutting springs 33, the first telescopic barrels are arranged at the front and back of the abutting spring 33, the right side of the sliding frame 32 is provided with a ball 34, the right side of the ball 34 is provided with a moving barrel 35, and the ball 34 is arranged between the positioning barrel 31 and the moving barrel 35. The inside of the work plate 1 is provided with a drive motor 36, the output end of the drive motor 36 is provided with a large gear 37, the left side of the large gear 37 is engagedly connected with a small gear 38, the size of the small gear 38 is smaller than that of the large gear 37, the top surfaces of the large gear 37 and the small gear 38 are provided with rotating plates 39, the inside of the positioning plate 3 is provided with a sliding groove, the inside of the sliding groove is slidably provided with a moving frame 40, the left side of the moving frame 40 is sequentially provided, from top to bottom, with an abutting pad 41 and a second telescopic barrel 42, the inside of the second telescopic barrel 42 is provided with a mounting spring, which is elastic, and the end, away from the moving frame 40, of the second telescopic barrel 42 is arranged on the inner wall of the positioning plate 3. The sound circuit board to be welded is placed on the surface of the positioning plate 3, then the drive motor 36 is started, the drive motor 36 drives the large gear 37 to rotate, then the large gear 37 is engaged with the small gear 38, at this time the large gear 37 drives the rotating plate 39 on the top surface to rotate counterclockwise, and the small gear 38 drives the rotating plate 39 on the top surface to rotate clockwise at a slow speed, at this time the rotating plate 39 can abut against the right surface of the moving barrel 35 in priority, then the moving barrel 35 pushes the ball 34 to roll in the inside of the positioning barrel 31, at this time the ball 34 extrudes the right side of the sliding frame 32, then the sliding frame 32 slides leftward in the inside of the positioning barrel 31, then the sliding frame 32 abuts against the right surface of the moving frame 40, then the moving frame 40 drives the abutting pad 41 to move rightward relative to the sound circuit board, then the abutting pad 41 can abut against the right side of the sound circuit board to stably abut against the right side of the sound circuit board, and when the small gear 38 rotates, at this time the rotating speed of the small gear 38 is smaller than that of the large gear 37, so that the large gear 37 and the rotating plate 39 on the top surface thereof abut against the front surface of the other moving barrel 35 more slowly than the rotating plate 39 on the top surface of the small gear 38, thereby the sound circuit board can be abutted against in advance by the positioning assembly, when the right side of the sound circuit board is in the abutting state, at this time the front surface of the sound circuit board is in the moving state, so that the right side and the front surface of the sound circuit board can be abutted and positioned in sequence by the rotation of the two rotating plates 39, thereby the sound circuit board with different length and width can be used, and the outer surface of the sound circuit board can be positioned in sequence.When the subsequent contact positioning, at this time the drive motor 36 began to reverse rotation, thus by the elastic setting of the spring 33, can automatically restore the slide 32 to the original position, so that the slide 32 in the right side of the positioning cylinder 31 inside sliding, so that the contact pad 41 and the moving frame 40 will also move to the right side, can automatically remove the positioning effect on the sound box circuit board.

[0025] Working principle: when the staff using the device, first of all, the device is connected to the power supply, so as to provide power support for the device, first of all, the need to weld the sound circuit board placed on the surface of the positioning plate 3, then by starting the drive motor 36, through the drive motor 36 driven gear 37 rotation, then the gear 37 and pinion 38 meshing, at this time the gear 37 drive top surface of the rotating plate 39 counterclockwise rotation, similarly, the pinion 38 will slowly drive the top surface of the rotating plate 39 clockwise rotation, at this time the rotating plate 39 can preferentially contact the right side surface of the moving cylinder 35, then the moving cylinder 35 will push the ball 34 in the inside of the positioning cylinder 31 rolling, at this time the ball 34 will be extruded on the right side of the slide 32, then the slide 32 will be in the inside of the positioning cylinder 31 to the left side of sliding, then the slide 32 will be in contact with the right side surface of the moving frame 40, then the moving frame 40 will drive the contact pad 41 to the right side of the sound circuit board, then the contact pad 41 can be in contact with the right side of the sound circuit board, the right side of the sound circuit board is stably in contact, similarly, when the pinion 38 rotation, at this time the rotation speed of the pinion 38 is less than the gear 37, so that the gear 37 and its upper surface of the rotating plate 39 is slower than the pinion 38 upper surface of the rotating plate 39 in contact with another group of moving cylinder 35 front surface, so that the setting through the positioning assembly can in advance to the right side of the sound circuit board in contact, when the right side of the sound circuit board is in contact state, at this time the sound circuit board front surface is in the moving state, therefore can be through two groups of rotating plate 39 rotation in turn according to the order to the right side and the front surface of the sound circuit board in contact positioning; When welding is carried out, at this time, the position of the sound circuit board has been positioned, the sliding block 6 slides in the electromagnetic sliding block 5 to the appropriate distance, at this time, the bottom plate 8 is lowered as a whole to the welding point through the descent of the cylinder body 7, then the welding operation is carried out through the cooperation of the solder wire body 14 in the guide cylinder 15 and the welding head body 9, the solder wire body 14 becomes shorter after being welded in turn, at this time, the bidirectional motor 20 is started, the bidirectional motor 20 starts to rotate counterclockwise, then the rotating impeller 21 is driven to rotate by the bidirectional motor 20, then the rotating impeller 21 drives the ratchet body 23 to rotate, since the ratchet body 23 is installed below the moving plate 12, at this time, the ratchet body 23 will abut against the back of the lower block 17, so as to drive the lower block 17 to slide downward, and at this time, the moving plate 12 slides downward in the inclined frame 10 through the connection of the mounting block 11, the sliding track of the moving plate 12 is limited by the inclined frame 10 and the mounting block 11, at the same time, the solder wire body 14 is limited by the setting of the two groups of positioning rings 13, so that the solder wire body 14 can slide downward in the guide cylinder 15, the sliding track of the solder wire body 14 is limited by the guide cylinder 15, then the ratchet body 23 starts to rotate circularly, the solder wire body 14 can slide downward following the sliding of the moving plate 12, then when the positioning ring 13 on the front end lower surface of the moving plate 12 abuts against the abutting block 16, at this time, the bidirectional motor 20 starts to rotate clockwise, since the arc-shaped block 22 is arranged, when the bidirectional motor 20 rotates counterclockwise, the transmission mechanism 19 will not rotate, then when the bidirectional motor 20 rotates clockwise, the transmission mechanism 19 will be driven to rotate, then the transmission mechanism 19 drives the worm gear 25 to rotate, the worm gear 25 and the worm 26 are engaged, then the worm 26 drives the lead screw body 27 to rotate, the mounting plate 28 on the surface of the lead screw body 27 slides downward, then the mounting plate 28 drives the moving cylinder 29 to move, then the transmission mechanism 19 pushes the solder wire body 14 downward through the inside of the fixed frame 30, so as to continue to push the solder wire body 14 and use it in cooperation with the welding head body 9, the above is all the working principle of the present application.

[0026] The above is only a preferred embodiment of the present application, and does not limit the present application in any form; any ordinary technical personnel in the industry can easily implement the present application according to the drawings and the above description; however, any slight change, modification and equivalent change made by the technical personnel familiar with the profession within the scope of the technical scheme of the present application, using the technical content disclosed above, are equivalent embodiments of the present application; at the same time, any equivalent change, modification and evolution of the above embodiments according to the essential technology of the present application are still within the protection scope of the technical scheme of the present application.

Claims

1. A welding device for an audio circuit board with intelligent positioning function, comprising a work board (1), wherein a control panel (2) is mounted on the right side of the work board (1), characterized in that: The upper surface of the work plate (1) is equipped with a positioning component, the front and rear surfaces of the work plate (1) are equipped with a welding adjustment component, the inside of the welding adjustment component is equipped with a conveying component, and the lower end of the conveying component is equipped with a sliding component. The positioning assembly includes a positioning plate (3), which is mounted on the top surface of the work plate (1); The welding adjustment assembly includes a mounting bracket (4) and a base plate (8). The mounting bracket (4) is mounted on the front and rear surfaces of the work plate (1). An electromagnetic slider (5) is mounted on the top surface of the mounting bracket (4). A sliding block (6) is slidably mounted inside the electromagnetic slider (5). The conveying assembly includes a slanted frame (10) and a guide tube (15), which are fixedly installed on the right side surface of the base plate (8) in sequence; The sliding assembly includes a fixing plate (18) which is mounted on the lower surface of the inclined frame (10).

2. The welding device for an audio circuit board with intelligent positioning function according to claim 1, characterized in that: The lower end of the sliding block (6) is equipped with a cylinder body (7), the base plate (8) is installed on the lower surface of the cylinder body (7), and the welding head body (9) is installed inside the base plate (8).

3. The welding device for an audio circuit board with intelligent positioning function according to claim 1, characterized in that: An installation block (11) is slidably installed inside the inclined frame (10). A motion plate (12) is installed on the right side of the installation block (11). A positioning ring (13) is installed on the front surface of the motion plate (12). A solder wire body (14) is installed inside the positioning ring (13).

4. The welding device for an audio circuit board with intelligent positioning function according to claim 3, characterized in that: The solder wire body (14) is sleeved between the positioning ring (13) and the guide tube (15). The inner side wall of the guide tube (15) is equipped with a stop block (16), and the lower surface of the moving plate (12) is fixedly connected with a lower block (17).

5. The welding device for an audio circuit board with intelligent positioning function according to claim 1, characterized in that: A transmission mechanism (19) is installed on the right side of the fixed plate (18), an arc block (22) is installed on the right side of the transmission mechanism (19), a bidirectional motor (20) is installed on the right side of the arc block (22), and a rotating impeller (21) is installed on the right output end of the bidirectional motor (20).

6. The welding device for an audio circuit board with intelligent positioning function according to claim 5, characterized in that: The outer surface of the rotating impeller (21) is uniformly fixedly connected with a ratchet body (23), and a chopping block (24) is installed on the back of the ratchet body (23). The rotating impeller (21) and the ratchet body (23) are installed directly below the motion plate (12).

7. The welding device for an audio circuit board with intelligent positioning function according to claim 5, characterized in that: A worm wheel (25) is installed on the right side of the transmission mechanism (19). A worm (26) is meshed with the lower surface of the worm wheel (25). A lead screw body (27) is installed inside the worm (26). An mounting plate (28) is installed on the outer surface of the lead screw body (27).

8. The welding device for an audio circuit board with intelligent positioning function according to claim 7, characterized in that: A fixing frame (30) is installed on one side of the surface of the lead screw body (27), and a moving cylinder (29) is inserted and installed inside the fixing frame (30).

9. The welding device for an audio circuit board with intelligent positioning function according to claim 1, characterized in that: Positioning cylinders (31) are installed on the front surface and the right back side of the positioning plate (3). A sliding frame (32) is slidably installed inside the positioning cylinder (31). A resisting spring (33) is installed on one side of the inner wall of the positioning cylinder (31). A first telescopic cylinder is arranged near the front and rear of the resisting spring (33). A ball bearing (34) is installed on the right side of the sliding frame (32). A movable cylinder (35) is installed on the right side of the ball bearing (34). The ball bearing (34) is installed between the positioning cylinder (31) and the movable cylinder (35).

10. A welding device for an audio circuit board with intelligent positioning function according to claim 1, characterized in that: The working plate (1) is equipped with a drive motor (36), and a large gear (37) is installed at the output end of the drive motor (36). A small gear (38) is meshed with the left side of the large gear (37). The size of the small gear (38) is smaller than that of the large gear (37). A rotating plate (39) is installed on the top surface of both the large gear (37) and the small gear (38). A sliding groove is opened inside the positioning plate (3). A movable frame (40) is slidably installed inside the sliding groove. A contact pad (41) and a second telescopic cylinder (42) are installed sequentially from top to bottom on the left side of the movable frame (40). The end of the second telescopic cylinder (42) away from the movable frame (40) is installed on the inner wall of the positioning plate (3).

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