CN112087885A - Automatic high-precision tin soldering equipment for processing printed circuit board - Google Patents

Abstract

The invention discloses automatic high-precision tin welding equipment for processing a printed circuit board, which relates to the technical field of electronic part processing, in particular to a base, a spring pre-tightening clamping mechanism, a centering fixture, a throttle valve and a soldering bit, wherein the top end of the base is fixed with a bracket, the surface of a workbench is provided with the spring pre-tightening clamping mechanism, the bottom end of a soldering mechanism is provided with a universal joint, the automatic high-precision tin welding equipment for processing the printed circuit board is provided with the spring pre-tightening clamping mechanism, the mechanism is a quick-change clamping mechanism based on the workbench, can be quickly and simply assembled and positioned, can realize the positioning and clamping of a base plate by rotating a handle, can quickly replace the base plate and the fixture body, has short installation time, can be convenient for a user to replace a knurled or a wrench plane according to the actual situation due to the detachable structural design of a rotating handle, solves the problems of troublesome replacement, poor repeated positioning precision and the, has the advantages of convenient use and quick replacement.

Description

Automatic high-precision tin soldering equipment for processing printed circuit board

Technical Field

The invention relates to the technical field of electronic part processing, in particular to automatic high-precision tin soldering equipment for processing a printed circuit board.

Background

At present, electronic products are gradually developing towards being light and thin, the updating speed of the electronic products is increasing, functional requirements on the electronic products are also increasing, a Printed Circuit Board (PCB) is used as an important electronic component of the electronic products, a support body of the electronic component and a carrier for electrical connection of the electronic component, the requirements on signal integrity and product reliability are also increasing, especially the signal integrity becomes a problem which must be concerned in high-speed digital PCB design, the signal is incomplete, the system can output incorrect data, the Circuit works abnormally or even does not work completely, the PCB is used as an important electronic component in the products, and the quality of the PCB design is important for the product performance.

The automatic soldering tin equipment of current printed circuit board, common problem has: the problems of the automatic tin soldering machine mainly show the phenomena of low welding point precision, insufficient welding, continuous welding, tin piling, tip drawing, missing welding and the like, and specifically comprise the following steps: the cold joint generally means that a welding point can be seen in the welding process, and the welding is not firm or the tin penetration is not enough in practice; the continuous welding generally refers to the phenomenon that a plurality of two welding points which are closely adjacent are adhered together in the tin soldering process; the tin accumulation generally means that welding points are welded into a sphere, and pin legs do not leak out; the skip welding generally refers to the phenomenon that no tin exists on a welding pad in the welding process of an automatic tin soldering machine; the welding spot precision is not high, which means that the welding spot is not smooth, and the drawing tip means that the welding spot is not well formed or burrs and the drawing tip are generated after the welding.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides automatic high-precision tin soldering equipment for processing a printed circuit board, which solves the problems in the background art.

In order to achieve the above purpose, the invention realizes an automatic high-precision soldering device for processing printed circuit boards by the following technical scheme, which comprises a base, a spring pre-tightening clamping mechanism, a centering fixture, a throttle valve and a soldering bit, wherein a support is fixed at the top end of the base, a control platform is arranged on one side of the support, a temperature controller is arranged on one side of the top end of the base, a workbench is arranged at the top end of the base, the spring pre-tightening clamping mechanism is arranged on the surface of the workbench, the centering fixture is arranged at the top end of the workbench, a moving beam is arranged at the top end of the support, a rack is arranged on one side of the moving beam, a motor is arranged at the top end of the rack, carrying platforms are arranged on two sides of the rack, a tin tape roll is arranged at the top end of the carrying platform, an, a feed inlet is arranged on one side of the top end of the throttle valve, a fluid channel is connected to the bottom end of the feed inlet, an adjusting valve core is arranged on one side of the fluid channel far away from the feed inlet, a sealing ring is arranged on the top end of the adjusting valve core, a clamping member is fixed on the top end of the adjusting valve core, a triangular groove is formed in the bottom end of the adjusting valve core, a discharge outlet is arranged at the bottom end of the triangular groove, an adhesive tape is connected to one side of the discharge outlet far away from the triangular groove, a welding gun is connected to the bottom end of the adhesive tape, a guide rail is arranged on the surface of the frame, a vertical connecting rod is connected to the bottom end of the guide rail, a transverse slide rail is arranged at the bottom end of the vertical connecting rod, moving seats are, and one side of the soldering mechanism is provided with a positioning mechanism, the bottom end of the soldering mechanism is provided with a universal joint, and the bottom end of the universal joint is connected with a soldering bit.

Optionally, the surface of the spring pre-tightening clamping mechanism is provided with a bushing, the top end of the bushing is provided with a rotating handle, the middle end of the rotating handle is provided with a bolt, the bottom end of the rotating handle is connected with a bearing, the bottom end of the bearing is connected with a threaded rod, the bottom end of the threaded rod is connected with a spring, the bottom end of the spring is connected with a piston rod, the bottom end of the piston rod is provided with a collet, two sides of the collet are provided with a limiting ball body, and one side.

Optionally, be connected through the bolt between rotatory handle and the bearing, constitute detachable construction, and the threaded rod is connected with rotatory handle through the bearing, constitutes rotatable structure, the rodent groove shape that the bush surface was seted up is identical with threaded rod surface spiral shape, and the piston rod is connected with the threaded rod through the spring, constitutes elastic construction, seted up the cavity between collet and the piston rod, and the cavity shape is identical with spacing spheroid shape.

Optionally, the bottom end of the centering fixture is provided with a double-push-rod self-locking driving mechanism, the bottom end of the double-push-rod self-locking driving mechanism is provided with a support, one side of the top end of the support is provided with a pump body, the bottom end of the pump body is provided with a cavity, the bottom end of the pump body is connected with a driving rod, the bottom of the driving rod is provided with a sun gear, two sides of the sun gear are connected with connecting rods, one side of the connecting rods, far away from the sun gear, is connected with a rocker, one side of the rocker, far away from the connecting rods is fixed with a fixing piece, one side of the fixing piece is provided with a main crank, one side of the rocker, far away from the main crank, is connected with a driven rod, the top end of the driven rod is provided, and the V-arrangement piece bottom is provided with the slide rail, the work piece groove has been seted up to V-arrangement piece top one side, and work piece groove keeps away from V-arrangement piece one side and is provided with flexible backing plate.

Optionally, the sun gear is connected with the pump body through the actuating lever, constitutes transmission structure, the cavity has been seted up to two push rods area self-locking actuating mechanism inside, the cavity shape is identical with connecting rod, rocker, main crank and pendulum rod movement track, and the driven lever is connected with the actuating lever through connecting rod, rocker, main crank, pendulum rod and sun gear, constitutes transmission structure, the cavity has been seted up to sleeve inside, and the sleeve surface is grease proofing antifouling material.

Optionally, the self-locking rod is connected with the driven rod through a sleeve to form a transmission structure, the top end of the self-locking rod is provided with a ball, the ball is matched with the through groove in shape, the V-shaped block is connected with the self-locking rod through a sliding rail to form a movable connection design, the top end of the V-shaped block is matched with a clamped workpiece in shape, the workpiece groove is connected with the base through a bolt to form a detachable structure, and the workpiece groove is connected with the V-shaped block through a flexible base plate to form a flexible clamping structure.

Optionally, the rack is connected with the movable beam through a sliding block arranged at the bottom to form a movable connection structure, the carrying platform is connected with the rack through bolts to form a detachable structure, a heating module is arranged inside the automatic tin breaking mechanism, and the tin strip coil is connected with the carrying platform through a bearing to form a rotatable structure.

Optionally, a fluid channel is formed in the throttle valve, two ends of the fluid channel are communicated with the feeding hole and the triangular groove, the diameter of a cylinder at the bottom end of the adjusting valve core is matched with the triangular groove, the spiral shape at the top end of the adjusting valve core is matched with the shape of a tooth containing groove formed in one side of the clamping component, and the discharging hole is communicated with the flux gun through an adhesive tape.

Optionally, the perpendicular connecting rod is connected with the motor through the guide rail, constitutes transmission structure, the slider that the removal seat was seted up through the back is connected with horizontal slide rail, constitutes swing joint structure, and removes the fixed flexible baffle of seat one side and adopt flexible rubber material, soldering mechanism is connected with hydraulic ram through slider and vertical slide rail, constitutes transmission structure, and the soldering bit is connected with soldering mechanism through the universal joint, constitutes swing joint structure, the soldering bit with send tin contained angle accessible numerical value input mode in- °arbitraryadjustment.

The invention provides automatic high-precision tin soldering equipment for processing a printed circuit board, which has the following beneficial effects:

1. this be used for processing of printed circuit board with automatic high accuracy tin welding equipment, through being provided with spring pretension fixture, this mechanism is the quick change clamping mechanism based on the workstation, can be quick simple and convenient positioning, the location that the base plate can be realized promptly to rotatory handle is tight, the quick replacement base plate, the anchor clamps body, the installation time is short, benefit from the detachable construction design of rotatory handle, but convenient to use person changes annular knurl or spanner plane according to actual conditions, solved and changed the troublesome and too poor scheduling problem of repeated positioning accuracy of dress in the traditional handicraft, and the equipment has convenient to use, change the swift advantage of dress.

2. The automatic high-precision tin welding equipment for processing the printed circuit board can realize flexible clamping of double stations at one time by arranging the centering fixture, the double push rods with the self-locking driving mechanisms are arranged and simultaneously drive the double push rods by using the driving device, the synchronization rate is high, the self-locking rods are arranged to facilitate the positioning of the double push rods with the self-locking driving mechanisms, the bottom through grooves of the V-shaped blocks are designed to facilitate a user to detect the positioning process and precision by observing, and the structural design of the top ends of the V-shaped blocks and the processed workpiece matched in shape facilitates the firm clamping of the workpiece on one hand and the centering operation of the processed workpiece on the other hand, thereby facilitating the improvement of the precision of the subsequent tin welding process, the flexible base plate is arranged to facilitate the buffering of the pressure transversely applied to the processed workpiece, the processed workpiece is protected, and the structural design of the bottom adaptive inner cavity of the double push rod with the self-locking driving mechanisms ensures that the, the mechanism is beneficial to daily maintenance and service, and the use cost is reduced.

3. The automatic high-precision tin welding equipment for processing the printed circuit board solves the problems of continuous welding, tin accumulation and low welding point precision caused by improper tin feeding flow by arranging the throttle valve, wherein the continuous welding generally refers to the phenomenon that a plurality of adjacent two welding points are adhered together in the tin welding process, the phenomenon is caused by too much tin feeding amount or too small gap between the two points, when the tin feeding amount is met, the tin feeding amount is reduced firstly, then whether the position of a soldering iron head is correct or not is judged, if the position is incorrect, adjustment is carried out in time, the tin accumulation generally refers to the phenomenon that the welding point is welded into a spherical shape, pin legs do not leak out, the phenomenon is caused mainly by too large tin feeding amount, the problem can be solved only by reducing the tin feeding amount at the moment, the welding point precision is not high, and the welding point refers to the phenomenon that the welding point is not well formed or has burrs and has a pull tip after the welding, the reason is mainly caused by poor fluidity of tin, the flow of tin is randomly changed by adjusting the height of the regulating valve core through the arrangement of the throttle valve, and the tin flow balance and high fluidity are ensured through the arrangement of the triangular groove.

4. The automatic high-precision tin soldering equipment for processing the printed circuit board solves the problems of insufficient soldering and surface tip drawing caused by inaccurate temperature control between mechanism operation by arranging the temperature controller, wherein the insufficient soldering generally means that a soldering point can be seen in the soldering process, the soldering is not firm in reality or the tin penetration is not enough, and the reason for the situation is mainly caused by insufficient residence time of a soldering iron head on a soldering pad or low temperature, so that the problem can be solved as long as the residence time of the soldering iron head is prolonged or the temperature is increased; the phenomenon that soldering flux is volatilized too fast due to too long retention time of tin on the surface of the soldering iron tip, and the phenomenon that the soldering iron tip is formed in the lifting process due to insufficient temperature in the traditional process is caused.

5. This be used for processing of printed circuit board with automatic high accuracy tin welding equipment, through being provided with positioning mechanism, cooperation centering fixture is to the centering effect by the processing work piece, can be effectual implement the location to being processed the position, and being provided with of soldering bit top universal joint mechanism does benefit to the change of soldering bit processing angle, cooperation positioning mechanism realizes carrying out the precision machining to being processed the position, according to the shape by the weldment, nature, characteristics etc. confirm suitable welding time, angle and temperature, the flow design, the machining accuracy is higher.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic top view of a part to be machined according to the present invention;

FIG. 3 is a schematic top view of the present invention;

FIG. 4 is a schematic diagram of a front view structure of the spring pre-tightening clamping mechanism of the present invention;

FIG. 5 is a schematic top view of the inner structure of the centering fixture of the present invention;

FIG. 6 is a schematic sectional view of the throttle valve of the present invention;

fig. 7 is a front view of the soldering mechanism of the present invention.

In the figure: 1. a base; 2. a support; 3. a console; 4. a temperature controller; 5. a work table; 6. the spring pre-tightens the clamping mechanism; 601. a bushing; 602. rotating the handle; 603. a bolt; 604. a bearing; 605. a threaded rod; 606. a spring; 607. a piston rod; 608. a bottom support; 609. a limiting ball body; 610. a base; 7. a centering jig; 701. the double push rods are provided with self-locking driving mechanisms; 702. a support; 703. a pump body; 704. a cavity; 705. a drive rod; 706. a sun gear; 707. a connecting rod; 708. a rocker; 709. a fixing member; 710. a main crank; 711. a swing rod; 712. a driven lever; 713. a sleeve; 714. a self-locking lever; 715. a ball bearing; 716. a V-shaped block; 717. a through groove; 718. a slide rail; 719. a workpiece groove; 720. a flexible backing plate; 8. a moving beam; 9. a frame; 10. a motor; 11. a mounting platform; 12. a tin coil roll; 13. an automatic tin breaking mechanism; 14. a throttle valve; 15. a feed inlet; 16. a fluid channel; 17. adjusting the valve core; 18. a seal ring; 19. a clamping member; 20. a triangular groove; 21. a discharge port; 22. an adhesive tape; 23. a flux gun; 24. a guide rail; 25. a vertical connecting rod; 26. a transverse slide rail; 27. a movable seat; 28. a flexible baffle; 29. a hydraulic ejector rod; 30. a slider; 31. a longitudinal slide rail; 32. a soldering mechanism; 33. a positioning mechanism; 34. a universal joint; 35. a soldering iron tip.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus are not to be construed as limiting the present invention, and furthermore, the terms "first", "second", "third", and the like are only used for descriptive purposes and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate, and those skilled in the art will understand the specific meaning of the above terms in the present invention in specific situations.

Referring to fig. 1 to 7, the present invention provides a technical solution: an automatic high-precision soldering device for processing a printed circuit board comprises a base 1, a spring pre-tightening clamping mechanism 6, a centering clamp 7, a throttle valve 14 and a soldering bit 35, wherein a support 2 is fixed at the top end of the base 1, a control console 3 is arranged on one side of the support 2, a temperature controller 4 is arranged on one side of the top end of the base 1, a workbench 5 is arranged at the top end of the base 1, the spring pre-tightening clamping mechanism 6 is arranged on the surface of the workbench 5, a bushing 601 is arranged on the surface of the spring pre-tightening clamping mechanism 6, a rotating handle 602 is arranged at the top end of the bushing 601, a bolt 603 is arranged at the middle end of the rotating handle 602, a bearing 604 is connected at the bottom end of the rotating handle 602, a threaded rod 605 is connected at the bottom end of the bearing 604, a spring 606 is connected at the bottom end of the, the rotary handle 602 is connected with the bearing 604 through a bolt 603 to form a detachable structure, the threaded rod 605 is connected with the rotary handle 602 through the bearing 604 to form a rotatable structure, the shape of a rodent groove formed in the surface of the bushing 601 is matched with the shape of a spiral thread on the surface of the threaded rod 605, the piston rod 607 is connected with the threaded rod 605 through the spring 606 to form an elastic structure, a cavity is formed between the bottom support 608 and the piston rod 607, the shape of the cavity is matched with the shape of the limiting sphere 609, the threaded rod 605 moves downwards under the action of the serrated groove on the side surface of the bushing 601 to drive the piston rod 607 to apply pressure on the limiting sphere 609, so that the limiting sphere 609 locks the workbench 5 and the base 610, meanwhile, the spring 606 is convenient for the mechanism to rebound and release pressure quickly, the effect of quick replacement is achieved, the flow design is achieved, the working efficiency is, the arrangement of the spring pre-tightening clamping mechanism 6 is beneficial to positioning between the base 610 and the workbench 5, the positioning precision is high, the use is convenient, the replacement is rapid, the detachable structure design of the bolt 603 at the top end of the rotating handle 602 is convenient for a user to replace a knurl or wrench plane according to actual conditions, the top end of the workbench 5 is provided with the centering clamp 7, the bottom end of the centering clamp 7 is provided with the double-push-rod belt self-locking driving mechanism 701, the bottom end of the double-push-rod belt self-locking driving mechanism 701 is provided with the support 702, one side of the top end of the support 702 is provided with the pump body 703, the bottom end of the pump body 703 is provided with the driving rod 705, the bottom of the driving rod 705 is provided with the sun gear 706, the two sides of the sun gear 706 are connected with the connecting rod 707, one side of the connecting rod 707 far away, the side of the main crank 710 far from the fixing part 709 is connected with a swing rod 711, the side of the swing rod 711 far from the main crank 710 is connected with a driven rod 712, the top end of the driven rod 712 is provided with a sleeve 713, the top end of the sleeve 713 is provided with an automatic locking rod 714, the top end of the automatic locking rod 714 is provided with a ball 715, the top end of the automatic locking rod 714 is provided with a V-shaped block 716, one side of the V-shaped block 716 close to the ball 715 is provided with a through groove 717, the bottom end of the V-shaped block 716 is provided with a slide rail 718, the sun gear 706 is connected with the pump body 703 through a driving rod 705 to form a transmission structure, the double push rod with a self-locking driving mechanism 701 is internally provided with a cavity, the cavity 704 is matched with the motion tracks of the connecting rod 707, the rocker 708, the main crank 710 and the swing rod 711 and the sun gear 706 through, the anti-oil-stain material structure design on the outer surface of the sleeve 713 is beneficial to preventing the double-push-rod self-locking driving mechanism 701 from being polluted by the pump body 703 when facing severe and complicated working conditions, the problem that the positioning of the through groove 717 is inaccurate due to the fact that the pressure of the sleeves 713 on two sides is inconsistent to the self-locking rod 714 caused by oil stain permeation is avoided, the workpiece groove 719 is formed in one side of the top end of the V-shaped block 716 and is arranged on one side of the workpiece groove 719 far away from the V-shaped block 716, the centering fixture 7 benefits from the double-push-rod self-locking driving mechanism 701 to realize double-station quick clamping, the self-locking rod 714 driven by the double-push-rod self-locking driving mechanism 701 keeps highly consistent clamping movement, the double-station design improves the soldering working efficiency, the automatic centering design of the V-shaped block 716 is beneficial to improving the precision of finished products in the subsequent soldering, the production cost is reduced, a movable beam 8 is arranged at the top end of the support 2, a frame 9 is arranged on one side of the movable beam 8, a motor 10 is arranged at the top end of the frame 9, carrying platforms 11 are arranged on two sides of the frame 10, a tin strip coil 12 is arranged at the top end of the carrying platform 11, an automatic tin breaking mechanism 13 is arranged on one side of the bottom end of the carrying platform 11, the frame 9 is connected with the movable beam 8 through a sliding block arranged at the bottom to form a movable connection structure, the carrying platform 11 is connected with the frame 9 through a bolt to form a detachable structure, a heating module is arranged inside the automatic tin breaking mechanism 13, the tin strip coil 12 is connected with the carrying platform 11 through a bearing to form a rotatable structure, the rotatable structure design of the tin strip coil 12 facilitates the tin strip to be straightened through the automatic tin breaking mechanism 13 for heating flow liquefaction, the subsequent processing technology is facilitated, the movable connection design of the frame 9 and the movable beam 8 facilitates the adjustment, a throttle valve 14 is arranged on one side of the automatic tin breaking mechanism 13, a feed inlet 15 is arranged on one side of the top end of the throttle valve 14, the bottom end of the feed inlet 15 is connected with a fluid channel 16, an adjusting valve core 17 is arranged on one side of the fluid channel 16 far away from the feed inlet 15, a sealing ring 18 is arranged on the top end of the adjusting valve core 17, a clamping member 19 is fixed on the top end of the adjusting valve core 17, a triangular groove 20 is arranged on the bottom end of the adjusting valve core 17, a discharge outlet 21 is arranged on the bottom end of the triangular groove 20, an adhesive tape 22 is connected on one side of the discharge outlet 21 far away from the triangular groove 20, a welding flux gun 23 is connected on the bottom end of the adhesive tape 22, the fluid channel 16 is arranged in the throttle valve 14, two ends of the fluid channel 16 are communicated, the discharge port 21 is communicated with a welding flux gun 23 through an adhesive tape 22, the arrangement of the throttle valve 14 avoids the problems of continuous welding, tin stacking and low welding point precision by controlling the flow of tin through a simple mechanical structure, a user can control the flow of tin reaching the discharge port 21 through a fluid channel 16 and a triangular groove 20 by adjusting the height of an adjusting valve core 17, the arrangement of a sealing ring 18 avoids the seepage of liquid from the top end of the adjusting valve body 17, the surface of the frame 9 is provided with a guide rail 24, the bottom end of the guide rail 24 is connected with a vertical connecting rod 25, the bottom of the vertical connecting rod 25 is provided with a transverse slide rail 26, two sides of the transverse slide rail 26 are provided with moving seats 27, one side of the moving seat 27 is provided with a flexible baffle 28, the top end of the moving seat 27 is provided with a hydraulic ejector rod 29, the top of the hydraulic ejector rod 29 is, a positioning mechanism 33 is arranged at one side of a soldering mechanism 32, a vertical connecting rod 25 is connected with a motor 10 through a guide rail 24 to form a transmission structure, a moving seat 27 is connected with a transverse slide rail 26 through a slide block arranged at the back to form a movable connection structure, a flexible baffle 28 fixed at one side of the moving seat 27 is made of flexible rubber, the soldering mechanism 32 is connected with a hydraulic ejector rod 29 through a slide block 30 and a longitudinal slide rail 31 to form the transmission structure, a soldering iron head 35 is connected with the soldering mechanism 32 through a universal joint 34 to form the movable connection structure, the included angle between the soldering iron head 35 and the tin feeding can be randomly adjusted within 0-170 degrees through a numerical value input mode, the soldering iron head 35 carries out soldering operation on a processed workpiece in a proper processing direction under the matching of the positioning mechanism 33 and the universal joint 34 when the processed position is accurately positioned, so that the soldering iron head 35 has better capability of coping with a printed circuit board which is blocked at a complicated processing position, meanwhile, the soldering mechanism 32 is designed through a movable connection structure of the sliding block 30 and the longitudinal sliding rail 31, the influence on the precision due to too long or too short retention time of the same processing position is avoided, the universal joint 34 is arranged at the bottom end of the soldering mechanism 32, and the bottom end of the universal joint 34 is connected with the soldering bit 35.

In conclusion, when the device is used, a power supply is switched on, the proper V-shaped block 716 and the workpiece groove 719 are rotated according to the characteristics of the workpiece to be machined, the workpiece to be machined is placed in the centering fixture 7 above the base 610, a user drives the threaded rod 605 to apply pressure to the limiting sphere 609 above the bottom support 608 under the driving of the spring 606 by operating the rotating handle 602 and under the action of the tooth-shaped groove body on the side surface of the bushing 601, so as to achieve the purpose of locking the workbench 5 and the base 610, the pump body 703 is started to apply downward pressure to the connecting rod 707 through the driving rod 705 and the sun gear 706, the connecting rod 707 drives the rocker 708 to do work around the fixing part 709, the fixing part 709 transmits power to the rocker 711 through the main crank 710, the driven rod 712 moves upward under the action of the rocker 711 connected at the bottom end to apply pressure to the self-locking rod 714 through the sleeve 713, the anti-oil stain material on the outer surface of the sleeve 713 enables, the shape of a through groove 717 formed at the bottom end of a V-shaped block 716 is consistent with the shape of a ball 715 at the top end of a self-locking rod 714, so that a user can monitor the positioning state of the self-locking rod 714 through the through groove 717, the V-shaped block 716 is positioned at the top end of a sliding rail 718 under the transmission of the self-locking rod 714 to move, the clamping of a processed workpiece is completed through a structural design that the top end of the V-shaped block 716 is matched with the shape of the processed workpiece, the design can ensure the stable clamping and simultaneously play a role in centering the processed workpiece, the processed workpiece is positioned on a workpiece groove 719 and flexibly clamped by a flexible backing plate 720 and the V-shaped block 716, the user drives a rack 9 to be positioned on a movable beam 8 through a control console 3 to move to a proper processing position, a motor 10 is started to drive a vertical connecting rod 25 to move downwards to a proper processing position through a guide rail 24, and, at the moment, the automatic tin breaking mechanism 13 on the carrying platform 11 is started to drive the tin strip coil 12 to feed materials in a rotating way under the action of the rollers, after being liquefied by the heating mechanism, the liquefied tin enters the feeding hole 15 at one side of the top end of the throttle valve 14, a user controls the height of a cylinder of the regulating valve core 17 positioned in the fluid channel 16 to control the flow rate of the tin entering the discharging hole 21 through the triangular groove 20, the tin flows into the flux gun 23 through the adhesive tape 22 at one side of the discharging hole 21 to prepare the tin, the hydraulic mandril 29 drives the soldering mechanism 32 to be positioned on the surface of the slide block 30 to longitudinally move to a proper height, the positioning mechanism 33 and the universal joint 34 drive the soldering iron 35 at the bottom of the soldering mechanism 32 to be in a proper processing position, the processing angle and the height are matched with the flux gun 23 to finish the soldering operation of a processed workpiece, and the temperature controller 4 is matched to finish the temperature control of the printed circuit board, the soldering iron 35.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (9)

1. The utility model provides a processing of printed circuit board is with automatic high accuracy tin welding equipment, includes base (1), spring pretension fixture (6), centering fixture (7), choke valve (14) and soldering bit (35), its characterized in that: the tin soldering machine is characterized in that a support (2) is fixed at the top end of a base (1), a control console (3) is arranged on one side of the support (2), a temperature controller (4) is arranged on one side of the top end of the base (1), a workbench (5) is arranged on the top end of the base (1), a spring pre-tightening clamping mechanism (6) is arranged on the surface of the workbench (5), a centering clamp (7) is arranged on the top end of the workbench (5), a moving beam (8) is arranged on the top end of the support (2), a rack (9) is arranged on one side of the moving beam (8), a motor (10) is arranged on the top end of the rack (9), carrying platforms (11) are arranged on two sides of the rack (10), a tin tape roll (12) is arranged on the top end of the carrying platform (11), an automatic tin breaking mechanism (13) is arranged on one side of the, a feed inlet (15) is formed in one side of the top end of the throttle valve (14), a fluid channel (16) is connected to the bottom end of the feed inlet (15), an adjusting valve core (17) is arranged on one side, away from the feed inlet (15), of the fluid channel (16), a sealing ring (18) is arranged on the top end of the adjusting valve core (17), a clamping member (19) is fixed to the top end of the adjusting valve core (17), a triangular groove (20) is formed in the bottom end of the adjusting valve core (17), a discharge hole (21) is formed in the bottom end of the triangular groove (20), an adhesive tape (22) is connected to one side, away from the triangular groove (20), of the discharge hole (21), a welding flux gun (23) is connected to the bottom end of the adhesive tape (22), a guide rail (24) is formed in the surface of the rack, and horizontal slide rail (26) both sides are provided with removes seat (27), it is provided with flexible baffle (28) to remove seat (27) one side, and removes seat (27) top and be provided with hydraulic ram (29), hydraulic ram (29) top is provided with slider (30), and longitudinal slide rail (31) have been seted up at slider (30) back, slider (30) bottom is connected with soldering mechanism (32), and soldering mechanism (32) one side is provided with positioning mechanism (33), soldering mechanism (32) bottom is provided with universal joint (34), and universal joint (34) bottom is connected with soldering iron (35).

2. The automated high-precision soldering apparatus for processing printed circuit boards as claimed in claim 1, wherein: the surface of the spring pre-tightening clamping mechanism (6) is provided with a bushing (601), the top end of the bushing (601) is provided with a rotating handle (602), the middle end of the rotating handle (602) is provided with a bolt (603), the bottom end of the rotating handle (602) is connected with a bearing (604), the bottom end of the bearing (604) is connected with a threaded rod (605), the bottom end of the threaded rod (605) is connected with a spring (606), the bottom end of the spring (606) is connected with a piston rod (607), the bottom end of the piston rod (607) is provided with a bottom support (608), two sides of the bottom support (608) are provided with a limiting sphere (609), and one side of the limiting sphere.

3. The automated high-precision soldering apparatus for processing printed circuit boards as claimed in claim 2, wherein: the rotary handle (602) is connected with the bearing (604) through a bolt (603) to form a detachable structure, the threaded rod (605) is connected with the rotary handle (602) through the bearing (604) to form a rotatable structure, the shape of a rodent groove formed in the surface of the bushing (601) is matched with the shape of a surface spiral of the threaded rod (605), the piston rod (607) is connected with the threaded rod (605) through a spring (606) to form an elastic structure, a cavity is formed between the bottom support (608) and the piston rod (607), and the shape of the cavity is matched with that of the limiting ball (609).

4. The automated high-precision soldering apparatus for processing printed circuit boards as claimed in claim 1, wherein: the bottom end of the centering fixture (7) is provided with a double-push-rod self-locking driving mechanism (701), the bottom end of the double-push-rod self-locking driving mechanism (701) is provided with a support (702), one side of the top end of the support (702) is provided with a pump body (703), the bottom end of the pump body (703) is provided with a cavity (704), the bottom end of the pump body (703) is connected with a driving rod (705), the bottom of the driving rod (705) is provided with a sun gear (706), two sides of the sun gear (706) are connected with a connecting rod (707), one side of the connecting rod (707) far away from the sun gear (706) is connected with a rocker (708), one side of the rocker (708) far away from the connecting rod (707) is fixed with a fixing piece (709), one side of the fixing piece (709) is provided with a main crank (710), one side of the main crank (710), driven lever (712) top is provided with sleeve (713), and sleeve (713) top is provided with from locking lever (714), ball (715) have been seted up on locking lever (714) top, and from locking lever (714) top is provided with V-arrangement piece (716), logical groove (717) have been seted up to V-arrangement piece (716) near ball (715) one side, and V-arrangement piece (716) bottom is provided with slide rail (718), work piece groove (719) have been seted up to V-arrangement piece (716) top one side, and work piece groove (719) keep away from V-arrangement piece (716) one side and are provided with flexible backing plate (720).

5. The automated high-precision soldering apparatus for processing printed circuit boards as claimed in claim 4, wherein: the solar gear (706) is connected with the pump body (703) through the driving rod (705) to form a transmission structure, a cavity is formed in the double-push-rod self-locking driving mechanism (701), the shape of the cavity (704) is matched with the motion tracks of the connecting rod (707), the rocker (708), the main crank (710) and the oscillating rod (711), the driven rod (712) is connected with the driving rod (705) through the connecting rod (707), the rocker (708), the main crank (710), the oscillating rod (711) and the solar gear (706) to form the transmission structure, the cavity is formed in the sleeve (713), and the outer surface of the sleeve (713) is made of oil-proof and antifouling materials.

6. The automated high-precision soldering apparatus for processing printed circuit boards as claimed in claim 4, wherein: the automatic locking rod (714) is connected with the driven rod (712) through a sleeve (713) to form a transmission structure, the top end of the automatic locking rod (714) is provided with a ball (715) which is matched with the shape of the through groove (717), the V-shaped block (716) is connected with the automatic locking rod (714) through a sliding rail (718) to form a movable connection design, the top end of the V-shaped block (716) is matched with a clamped workpiece, the workpiece groove (719) is connected with the base (610) through a bolt to form a detachable structure, and the workpiece groove (719) is connected with the V-shaped block (716) through a flexible base plate (720) to form a flexible clamping structure.

7. The automated high-precision soldering apparatus for processing printed circuit boards as claimed in claim 1, wherein: the tin automatic breaking mechanism is characterized in that the rack (9) is connected with the moving beam (8) through a sliding block arranged at the bottom to form a movable connection structure, the carrying platform (11) is connected with the rack (9) through bolts to form a detachable structure, a heating module is arranged inside the automatic tin breaking mechanism (13), and the tin strip coil (12) is connected with the carrying platform (11) through a bearing to form a rotatable structure.

8. The automated high-precision soldering apparatus for processing printed circuit boards as claimed in claim 1, wherein: fluid passage (16) have been seted up to choke valve (14) inside, and fluid passage (16) both ends are linked together with feed inlet (15) and triangular groove (20), it is identical with triangular groove (20) to adjust case (17) bottom cylinder diameter, and adjusts case (17) top spiral shape and the rodent dress flute profile shape that clamping component (19) one side was seted up and identical, discharge gate (21) are linked together through sticky tape (22) and solder gun (23).

9. The automated high-precision soldering apparatus for processing printed circuit boards as claimed in claim 8, wherein: the soldering iron is characterized in that the vertical connecting rod (25) is connected with the motor (10) through a guide rail (24) to form a transmission structure, the moving seat (27) is connected with a transverse sliding rail (26) through a sliding block arranged on the back to form a movable connection structure, a flexible baffle (28) fixed on one side of the moving seat (27) is made of flexible rubber, the soldering mechanism (32) is connected with a hydraulic ejector rod (29) through a sliding block (30) and a longitudinal sliding rail (31) to form a transmission structure, the soldering iron head (35) is connected with the soldering mechanism (32) through a universal joint (34) to form a movable connection structure, and the included angle between the soldering iron head (35) and tin feeding can be adjusted randomly within 0-170 degrees through a numerical value input mode.

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