CN106226683B

CN106226683B - Multifunctional integrated circuit debugging instrument with circuit board rapid welding device

Info

Publication number: CN106226683B
Application number: CN201610706874.8A
Authority: CN
Inventors: 刘扬; 崔红燕; 孟斌
Original assignee: Huanghe Science and Technology College
Current assignee: Beijing Benhongtai Technology Co ltd
Priority date: 2016-08-23
Filing date: 2016-08-23
Publication date: 2022-11-11
Anticipated expiration: 2036-08-23
Also published as: CN106226683A

Abstract

The multifunctional integrated circuit debugging instrument with the circuit board quick welder comprises a control host, a circuit board test fixture, a test signal output observation unit and the circuit board quick welder; the test signal output end of the circuit board test fixture is connected with the signal input end of the test signal output observation unit; the power line of the circuit board quick welding device is connected with the control host. The invention has simple structure and simple and convenient operation, integrates the functions of adjustable stabilized voltage power supply, oscilloscope, electronic load instrument and other instruments, has various, concentrated and specific functions, is simple and easy to implement in the use process, reliable in connection and accurate in test, greatly improves the efficiency of debugging a circuit board, and has high welding efficiency, strong safety and reliability, high welding quality and convenient replacement of vulnerable parts such as ceramic heating cores.

Description

Multifunctional integrated circuit debugging instrument with circuit board rapid welding device

Technical Field

The invention belongs to the technical field of electronic circuits, and particularly relates to a multifunctional integrated circuit debugging instrument with a circuit board quick welder.

Background

The signal change and the function of the electronic circuit have certain abstract characteristics, and the working state and the characteristics of the circuit are difficult to know by a direct observation means. Therefore, in the application development and design of electronic products and equipment, a large amount of instruments and equipment are needed to build a test environment and acquire circuit states.

The circuit debugging refers to the process of repeatedly and continuously modifying the verification by searching for reasons aiming at the problems that whether the stage of the circuit development reaches the expected performance target needs to be verified at different stages.

There are many kinds of commonly used circuit debugging instruments, including adjustable voltage-stabilized power supply, oscilloscope, electronic load meter and universal test board capable of repeatedly welding and modifying circuit. Because of the various models of the instruments, the functions are not centralized and are not specific. Therefore, a lot of troubles are caused in the using process, and the debugging progress and efficiency of the circuit are seriously influenced.

In addition, when the circuit board is welded at present, the traditional constant-temperature welding electric iron is generally adopted, the electric iron is used for welding, the operation is generally carried out by hands, and the welding mode has the following technical defects: 1. the safety is poor, and people or articles are easily injured; 2. the operation is troublesome, and the welding efficiency is low; 3. the welding is carried out by using an electric soldering iron, and the welding reliability is poor due to the fact that no adaptive supporting and adjusting platform exists; 4. after the heating core of the electric soldering iron is damaged, the electric soldering iron is not easy to replace and reuse.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides the multifunctional comprehensive circuit debugging instrument with the circuit board quick welder, which is easy to control, convenient to adjust, various and exclusive in function, good in circuit debugging progress, high in debugging efficiency, high in welding efficiency, strong in safety, good in welding effect and convenient to replace vulnerable parts.

In order to solve the technical problems, the invention adopts the following technical scheme: the multifunctional integrated circuit debugging instrument with the circuit board quick welder comprises a control host, a circuit board test fixture, a test signal output observation unit and a circuit board quick welder; the test signal output end of the circuit board test fixture is connected with the signal input end of the test signal output observation unit;

the control host comprises a cuboid box body, a power driving module, a switching power supply control module, a load control module and a welder constant-temperature heating module are arranged in the box body, a 220V power line extending out of the box body backwards is connected to the rear side of the power driving module, and a radiator in contact with the power driving module is arranged at the rear part in the box body; the load control module is connected with the power driving module and is respectively connected with the switching power supply control module and the welder constant-temperature heating module;

an output voltage digital display screen, an output current digital display screen, a load voltage digital display screen, a load current digital display screen, an output voltage adjusting knob, an output current adjusting knob, a load intensity adjusting knob, a power voltage output anode, a power voltage output cathode, a load access end anode, a load access end cathode, a load intensity gear selecting button and a welding iron interface are arranged on the front side panel of the box body, and an interface electrode needle is arranged in the welding iron interface;

the internal circuit of the switch power supply control module is respectively connected with a power supply voltage output positive electrode, a power supply voltage output negative electrode, an output voltage adjusting knob, an output current adjusting knob, an output voltage digital display screen and an output current digital display screen;

the internal circuit of the load control module is respectively connected with the anode of the load access end, the cathode of the load access end, a load voltage digital display screen, a load current digital display screen and a load intensity gear selection button;

the welder constant temperature heating module is connected with the inner end of an interface electrode needle in the welding iron interface;

the circuit board testing clamp comprises a horizontally arranged base, a testing positioning notch is formed in the upper surface of the base, a back plate and two vertical rods located on the front side of the back plate are vertically arranged on the base, the upper ends of the vertical rods are fixedly connected with the front side of the back plate through a positioning plate, a moving platform is arranged on the two vertical rods in a penetrating and sliding mode, a connecting frame is fixedly arranged on the upper portion of the front side of the back plate, a pressure rod is arranged on the upper portion of the front side of the connecting frame, a handle sleeve is arranged on the upper portion of the pressure rod, a shaft sleeve is arranged on the lower portion of the front side of the connecting frame, a push-pull rod is arranged in the shaft sleeve in a penetrating and sliding mode, the lower end of the push-pull rod is vertically fixed on the rear side of the upper surface of the moving platform, the upper end of the push-pull rod is connected with the lower portion of the pressure rod through a connecting plate, and two ends of the connecting plate are respectively hinged to the upper end of the push-pull rod and the lower portion of the pressure rod;

the base is provided with two power supply wiring terminals and two load wiring terminals, four threading holes which vertically correspond to the bottoms of the two power supply wiring terminals and the two load wiring terminals are formed in the base, a power supply voltage output positive electrode and a power supply voltage output negative electrode are respectively connected with one power supply wiring terminal through first wires which penetrate through the two threading holes, and a load access end positive electrode and a load access end negative electrode are respectively connected with one load wiring terminal through second wires which penetrate through the other two threading holes;

the upper surface of the mobile platform is provided with an insulating electrode mounting plate, the left side and the right side of the insulating electrode mounting plate are respectively provided with a group of left lotus flower head pin-type electrodes and right lotus flower head pin-type electrodes, the lower ends of the left lotus flower head pin-type electrodes and the right lotus flower head pin-type electrodes protrude out of the lower surface of the mobile platform, the upper ends of the left lotus flower head pin-type electrodes and the right lotus flower head pin-type electrodes are respectively connected with flexible left electrode lead-out flat cables and right electrode lead-out flat cables, and the lower ends of the left electrode lead-out flat cables and the right electrode lead-out flat cables are connected with a power supply binding post and a load binding post;

the right side of the base is provided with a signal board electric connection socket which is respectively connected with the left electrode lead-out flat cable and the right electrode lead-out flat cable through signal lead-out wires;

the test signal output observation unit comprises a signal board connecting flat cable and a test signal observation board, the left end of the signal board connecting flat cable is provided with a signal board electric connection plug which is inserted in the signal board electric connection socket, the right end of the signal board connecting flat cable is provided with a dock type expansion connection socket, the left end of the test signal observation board is provided with a dock type expansion connection plug-in unit, the dock type expansion connection plug-in unit is inserted in the dock type expansion connection socket, and the upper surface of the test signal observation board is provided with a row of double-reed socket electrodes.

The radiator includes that the central line all follows the foreign side barrel and the interior side barrel that the vertical direction set up, the equal shutoff in upper and lower both ends of foreign side barrel and interior side barrel, the rear side of foreign side barrel and interior side barrel is all uncovered, it is the water conservancy diversion passageway of channel bar type to form the cross-section between foreign side barrel and the interior side barrel, the equal fixed connection of foreign side barrel rear side and interior side barrel rear side is on box rear side inboard wall, the air current guide slot has all been seted up on foreign side barrel inner wall and the interior side barrel outer wall, set up air outlet and the air intake that communicates respectively with the both sides of water conservancy diversion passageway on the box rear side panel, air outlet department is equipped with the grid, set up the air supply fan who is located the air intake rear side and bloies to the air intake on the box rear side panel.

The circuit board rapid welding device comprises a base, wherein a supporting guide rod is arranged on the rear side of the middle part of the upper surface of the base, a sliding block is arranged on the supporting guide rod in a penetrating and sliding mode, a positioning bolt in jacking fit with the supporting guide rod is connected to the side part of the sliding block through threads, a horizontal rod is arranged on the front side of the sliding block, the front end of the horizontal rod is connected with a connecting rod through an upper ball hinge, the lower end of the connecting rod is connected with a mounting platform through a lower ball hinge, a fixed shaft is vertically arranged on the upper surface of the mounting platform, a wire winding frame is rotatably arranged on the fixed shaft, a wire punching hole and a mounting hole are formed in the mounting platform, an electric soldering iron assembly is arranged in the mounting hole in a penetrating mode, and two placing slotted holes for limiting the lower end of the electric soldering iron assembly are formed in the base;

the electric soldering iron assembly comprises a handle rod penetrating in the mounting hole, a limiting sleeve positioned above the mounting platform is arranged at the upper end of the handle rod, the outer diameter of the limiting sleeve is larger than the inner diameter of the mounting hole, the lower end of the handle rod is connected with the mounting pipe in the axial direction through a mounting rack, the lower end of the mounting pipe is open, the outer appearance of the lower end of the mounting pipe is of a thick-top-thin structure, a wire feeding roller is rotatably arranged at the left side part of the mounting rack, a wheel groove for bypassing wires is formed in the outer circumference of the wire feeding roller, a long hole is formed in the left side part of the mounting pipe in the axial direction, a guide groove is correspondingly formed in the front side part and the rear side part of the mounting pipe, the lower end of the guide groove is communicated with the lower end edge of the mounting pipe, an arc-shaped groove is correspondingly formed in the front side part and the rear side part of the mounting pipe, and the left end of the arc-shaped groove is communicated with the upper end of the guide groove, a soldering bit is inserted into the installation tube, clamping columns clamped at the right end of the arc-shaped groove are respectively arranged on the front side and the rear side of the soldering bit, a core hole is formed in the upper portion of the soldering bit, a heating ceramic core is inserted into the core hole, a bracket is arranged in the long hole, a connecting plate extending into the installation tube is arranged on the upper portion of the bracket, a semi-cylindrical bracket matched with the side portion of the heating ceramic core is arranged on the side portion of the connecting plate, an insulating plate is arranged on the top of the connecting plate, contact electrode reeds are respectively arranged on two sides of the insulating plate, a power line is clamped between each contact electrode reed and the insulating plate, the lower ends of the two power lines are connected with the top of the heating ceramic core, a buckle protruding out of the installation tube is arranged on the top of the bracket, and the upper ends of the two power lines sequentially penetrate through the installation frame, the handle rod and the limiting sleeve upwards;

support the guide arm upper end and be equipped with the spacing square nut of threaded connection, spacing square nut rear side is equipped with the wire ring, and the lateral part is equipped with down the wire ring behind the base, and the power cord is worn out by the stop collar and is connected with the power connector after passing wire ring and lower wire ring in proper order again, and the power connector is pegged graft and is connected in welding flatiron interface and with interface electrode needle outer end.

The base is provided with a vent hole positioned below the test positioning notch.

The structure of the left lotus flower head needle type electrode is the same as that of the right lotus flower head needle type electrode, the right lotus flower head needle type electrode comprises a cylindrical electrode body, an extraction electrode connected with a right electrode extraction flat cable is arranged at the upper end of the electrode body, an extraction electrode connected with the right electrode extraction flat cable is arranged at the upper end of the electrode body, a cylindrical groove is formed in the lower end of the electrode body along the axis direction, a movable needle head is inserted into the cylindrical groove, a spring is arranged between the upper end of the movable needle head and the bottom of the cylindrical groove, and the lower end of the movable needle head is a lotus flower head-shaped electric contact surface.

The docking type expansion connecting plug-in comprises a plug board, a plurality of positioning clamping grooves are uniformly arranged at intervals along the front-back direction at the edge of the left end of the plug board, a positioning hole is respectively arranged on the plug board at the front side and the back side of the rear part of each positioning clamping groove, and a gold-plated contact electrode plate is arranged right behind each positioning hole on the plug board;

dock expansion connection socket is including the socket base of fixed establishing at the signal plate connection winding displacement right-hand member upper surface, the left front end of socket base and rear end are equipped with a locating plate respectively, be equipped with the apron between two locating plates, the front side and the rear side of apron are equipped with one respectively and locating plate complex constant head tank, be connected with the buckle through the articulated shaft rotation between two locating plates, buckle middle part right side is equipped with the spanner, articulated shaft and buckle fixed connection, the outline of the cross section of articulated shaft is formed by connecting circular and straightway, the buckle lower surface is equipped with the protruding edge strip of elasticity that is used for sticising the apron upper surface, form the open slot of right-hand member between apron and the socket base, be equipped with in the slot with gilding contact electrode piece one-to-one complex reed contact electrode, form the inserted hole between the upwards perk of right-hand member of reed contact electrode and the socket base, socket base upper surface left side is equipped with the location draw-in-line location card platform with location draw-in-slot one-to-one, the apron lower surface is equipped with locating hole one-to-one correspondence joint complex arc lug, be equipped with the signal plate connection winding displacement and is connected the electrode extraction needle that corresponds with every reed contact electrode that corresponds.

The bottom of the mounting rack is provided with a wire feeding guide rod, the lower end of the wire feeding guide rod is adjacent to the lower end of the soldering bit, the upper part of the wire feeding guide rod is provided with an upper wire guide ring, the lower end of the wire feeding guide rod is provided with a lower wire guide ring, and wire materials wound on the wire material winding rack sequentially pass through a wire material perforation, pass through a wheel groove on a wire feeding roller and extend into the lower end part of the soldering bit after passing through the upper wire guide ring and the lower wire guide ring from top to bottom.

The base left side is equipped with clean sponge bracket and scaling powder silo, and base upper surface right side rear portion is equipped with two pressure spring pieces that are used for compressing tightly the positioning circuit board through pressure spring set screw.

The base is integrally of a rectangular structure, and four corners of the base are respectively provided with a supporting leg.

By adopting the technical scheme, the control host is the input/output device integrated with three necessary functions. An adjustable voltage of 0-30V can be output. The electronic load can simulate a resistive load of 0-10 kilo-ohms, and the load strength gear selection button is adjustable in three gears, namely 0-200K, 100-2K and 2K-10K.

The load control module controls the load current and the load voltage to be given by the load control module, then the load current and the load voltage are led into the power driving module, the power driving module (the power tube and the load) array generates larger power, larger heat can be naturally generated, and the heat is transferred to the outside of the box body through the tightly-attached radiator. And the stable operation of each part of circuit is ensured. The air supply fan blows air into the flow guide channel of the radiator, and the air flow brings out heat emitted by the outer cylinder from the air outlet. The air flow guide grooves are formed in the inner wall of the outer square barrel and the outer wall of the inner square barrel, so that a good air guiding effect is achieved, the heat dissipation area of the radiator can be increased, and the heat dissipation effect is improved.

The output voltage adjusting knob and the output current adjusting knob are connected to an adjusting circuit of the switch power supply control module to adjust the output voltage and current. The output voltage and current have three effective digits, and the digits are displayed on an output voltage digital display screen and an output current digital display screen respectively.

The load intensity is adjusted by a load intensity gear selection button connected to an internal input circuit of the load control module. The voltage and current strength actually applied to the internal load circuit are displayed by three digits on a load voltage digital display screen and a load current digital display screen respectively.

The welding iron interface is used for connecting a heating power supply connector of the circuit quick welder.

When a circuit board is tested, a standard plate of a test circuit building platform is horizontally placed in a test positioning groove, a hand-held handle sleeve presses a pressure rod downwards, the pressure rod drives a push-pull rod to move downwards along a shaft sleeve through a connecting plate, the push-pull rod drives a moving platform to move downwards along two vertical rods, a group of left lotus head needle type electrodes and a group of right lotus head needle type electrodes which are installed on the moving platform also move downwards along with the push-pull rod, movable needle heads at the lower ends of the left lotus head needle type electrodes and the group of right lotus head needle type electrodes are pressed on gold-plated electrode sheets on the standard plate of the test circuit building platform, and related signals are connected into the left lotus head needle type electrodes and the group of right lotus head needle type electrodes on the moving platform on the standard plate of the test circuit building platform, are respectively led into a base through a left electrode leading-out flat cable and a right electrode leading-out flat cable, and are electrically connected with a signal plate electric connection socket on the side of the base, a power supply terminal and a load terminal. The standard board of the test circuit building platform is an independent universal test circuit board, a circuit to be debugged can be built on the standard board, and all input and output signals and observation signals are led out through the gold-plated electrode plates distributed on the periphery of the standard board.

The springs in the left lotus head needle type electrode and the right lotus head needle type electrode prop against the movable needle head, so that the movable needle head moves up and down and is tightly pressed on a gold-plated electrode sheet of a standard plate of the test circuit building platform. The design mode that the lower end of the movable needle head is the lotus head-shaped electric contact surface is larger than the contact area of the traditional single needle head, and the connection is more reliable in the structural mode. The ventilation holes are used for building a platform standard plate for a test circuit in the test process to dissipate heat.

Adopt the gliding structure of hand multi-bar direction, the operation of being convenient for, safe and reliable, this circuit board test fixture has solved the unfavorable condition that often meets among the circuit debugging process, frequent dismantlement when test circuit building platform standard plate need be revised promptly, and the signal is repeatedly connected and is corresponded, obvious reduce efficiency. In test circuit built platform standard plate level was placed the test positioning notch, can dismantle test circuit built platform standard plate fast, to frequently using the welding mode to modify device and the circuit connection relation on test circuit built platform standard plate among the debugging process, very big improvement efficiency to reduce the unreliability of test circuit board and external instrument signal connection, reduce the signal interference that appears under this kind of circumstances, lead to producing adverse effect to the debugging.

15 observation signals of the double-reed interface electrode which is externally connected to the test signal observation plate are led out through a dock expansion plate plug and are connected to a dock expansion connection socket of a signal plate connection flat cable, and then the signal plate electric connection plug is connected to a signal plate electric connection socket of the circuit board test fixture.

The test circuit builds a platform standard board and a test signal observation board, and the two parts are circuit boards which are designed in a matched manner and are specially used for debugging. The standard board of the test circuit building platform is designed for building a test circuit, and a power supply and a signal are led out by contacting a left lotus-headed needle type electrode and a right lotus-headed needle type electrode through gold-plated electrode plates which are arranged on the board in a certain sequence. The test signal observation board is used for observing the internal signal state of a built test circuit by using external instruments (an oscilloscope, a voltmeter and the like), and an instrument probe and a measuring pointer can be conveniently and directly connected to a row of double-reed interface electrodes.

The improved structure of the connector comprises a base, a connector base, a positioning clamping table, a positioning buckle, an elastic convex rib, a buckling plate, an arc-shaped bump, a straight line section and a buckling shaft, wherein the base is provided with a slot, the slot is formed between the base and the base, the slot is formed between the base and the docking expansion connector, a gold-plated contact electrode plate on the slot is contacted with a reed contact electrode, the positioning clamping groove is matched with the positioning clamping table, the arc-shaped bump is matched with the positioning hole, and the arc-shaped bump is in good positioning contact. When the dock expansion connecting plug-in is required to be separated from the dock expansion connecting socket, the wrench is pulled upwards, the buckle plate is turned upwards, the arc-shaped convex block on the lower surface of the cover plate is separated from the positioning hole, and therefore the dock expansion connecting plug-in can be pulled out. By adopting the connecting structure, the connection is not only tight and reliable, but also can bear certain tensile force, and the connection interruption caused by external force or dead weight is avoided.

The circuit board rapid welding device is a part of a multifunctional circuit debugging instrument, and compared with the traditional constant-temperature welding electric iron, the circuit board rapid welding device has the advantages of being more flexible and convenient to use and capable of achieving rapid welding. The multifunctional circuit debugging instrument is specially used for frequently and repeatedly modifying the test circuit, so that the circuit debugging time is reduced on the whole, and the circuit development speed is accelerated.

The circuit board rapid welding device is connected to a welding iron interface of the debugging instrument host through a power connector on a power line, and heating and power supply for the welding device are achieved. The upper ball hinge and the lower ball hinge which are respectively connected with the upper end and the lower end of the connecting rod can limit the movement of the electric soldering iron assembly not to be separated from the mounting platform, and the flexible movement of the electric soldering iron assembly in the plane range on the base is realized. After the use, the soldering iron head is inserted into any one of the two placing slotted holes; the structure mainly solves the problems that the trouble of frequently placing and operating in the welding process and the hands of operators are easily scalded. The mounting frame is provided with a wire feeding roller, the wire is wound in the roller groove, the structure is responsible for accurately feeding solder to the lower end of the soldering bit, when the soldering bit is used, the thumb is used for poking the wire feeding roller, and the wire (soldering wire) can move downwards along the upper wire guide ring and the lower wire guide ring until contacting the side wall of the lower end of the soldering bit and being melted on the soldering bit; the structure avoids the defect that one hand is needed to hold the welding wire to feed in the traditional welding process, and the other hand can be saved for simultaneously rotating and positioning the circuit board and the like, so that the operation is more time-saving and labor-saving and more humanized.

To the application demand that needs frequently change various shape solder tips among the welding process, solder tip upper portion front and back symmetry has set up two card posts, and the card post can be along guide way and the arc type groove motion that sets up on the installation pipe, and the right-hand member position in arc type groove is fixed a position to the last card post for only need rotate the solder tip when installing the solder tip alright with installation chucking or withdraw from.

Because the heating ceramic core in the soldering bit is often easy to damage, a bracket structure for quickly replacing the heating ceramic core is designed, the heating ceramic core is embedded in a semi-cylindrical bracket at the side part of the connecting plate, and two power wires are respectively clamped at the inner side of a contact electrode reed. When the ceramic heating core is replaced, the soldering bit is firstly pulled out of the mounting pipe, the soldering bit is separated from the heating ceramic core at the moment, and then the handle is pulled outwards, so that the bracket drives the heating ceramic core to be pulled out of the long hole, and the bracket can be pulled out. And then two power wires are pulled out, so that the old heating ceramic core can be taken down. The new heating ceramic core is clamped in the semi-cylindrical bracket, the power cord is clamped on the inner side of the contact electrode reed, then the bracket is pushed into the long hole, and the soldering bit is screwed in, thus completing the replacement. The heating ceramic core is replaced simply and conveniently compared with the traditional soldering iron heating core.

When the circuit board quick welding device is used for welding, the circuit board quick welding device moves up and down to a proper position along the supporting guide rod through the sliding block, and the operation height of the electric soldering iron assembly can be adjusted after the positioning bolt is screwed down. Then the circuit board can be placed on the base, the circuit board is pressed tightly by the two pressure spring pieces, and the circuit board can be welded by holding the handle rod.

The invention has simple structure and simple and convenient operation, integrates the functions of adjustable stabilized voltage power supply, oscilloscope, electronic load instrument and other instruments, has various, concentrated and specific functions, is simple and easy to implement in the use process, reliable in connection and accurate in test, greatly improves the efficiency of debugging a circuit board, and has high welding efficiency, strong safety and reliability, high welding quality and convenient replacement of vulnerable parts such as ceramic heating cores.

Drawings

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

FIG. 2 is a schematic diagram of a front side panel structure of the control host in FIG. 1;

FIG. 3 is a top view of FIG. 2;

FIG. 4 is a cross-sectional view B-B of FIG. 3;

FIG. 5 is an enlarged view of the circuit board testing fixture of FIG. 1;

FIG. 6 is a bottom view of the circuit board test fixture;

FIG. 7 is an axial cross-sectional view of the right lotus-headed needle electrode of FIG. 5;

fig. 8 is a plan view of the test signal output observation unit;

FIG. 9 is an enlarged view of the docking configuration of the docking expansion plug and docking expansion socket;

FIG. 10 is an enlarged view at A in FIG. 1;

FIG. 11 is a schematic diagram of the circuit board quick solder connector of FIG. 1;

FIG. 12 is a schematic diagram of an external structure of the electric soldering iron assembly in FIG. 11;

FIG. 13 is a schematic view of the assembly between the soldering tip and the heat generating ceramic core of FIG. 12;

fig. 14 is a left side view of fig. 13.

Detailed Description

As shown in fig. 1-14, the multifunctional integrated circuit debugger with a circuit board quick welder of the present invention includes a control host 50, a circuit board test fixture 51, a test signal output observation unit 52, and a circuit board quick welder 129; the test signal output terminal of the circuit board test jig 51 is connected to the signal input terminal of the test signal output observation unit 52.

The control host 50 comprises a box body 53 in a cuboid shape, a power driving module 54, a switching power supply control module 55, a load control module 56 and a welder constant-temperature heating module 57 are arranged in the box body 53, a 220V power line 58 extending backwards out of the box body 53 is connected to the rear side of the power driving module 54, and a radiator 63 in contact with the power driving module 54 is arranged at the rear part in the box body 53; the load control module 56 is connected to the power driver module 54, and the load control module 56 is connected to the switching power supply control module 55 and the welder constant temperature heating module 57, respectively.

An output voltage digital display screen 59, an output current digital display screen 60, a load voltage digital display screen 61, a load current digital display screen 62, an output voltage adjusting knob 64, an output current adjusting knob 65, a load intensity adjusting knob 66, a power voltage output positive electrode 67, a power voltage output negative electrode 68, a load access end positive electrode 69, a load access end negative electrode 70, a load intensity gear selecting button 71 and a welding iron interface 72 are arranged on the front side panel of the box body 53, and an interface electrode needle is arranged in the welding iron interface 72.

The internal circuit of the switching power supply control module 55 is connected with a power supply voltage output positive electrode 67, a power supply voltage output negative electrode 68, an output voltage adjusting knob 64, an output current adjusting knob 65, an output voltage digital display screen 59 and an output current digital display screen 60 respectively.

The internal circuit of the load control module 56 is connected to the load input terminal positive electrode 69, the load input terminal negative electrode 70, the load voltage digital display screen 61, the load current digital display screen 62 and the load intensity gear selection button 71 respectively.

The soldering iron thermostatic heating module 57 is connected to the inner end of the interface electrode pin in the soldering iron interface 72.

Quick welding ware 129 of circuit board includes base 1, base 1 upper surface middle part rear side is equipped with support guide arm 2, it is equipped with slider 3 to wear to establish and slide on the

support guide arm

2, 3 lateral part threaded connection of slider has with support guide arm 2 roof pressure

complex positioning bolt

4, 3 front sides of slider are equipped with

horizon bar

5, 5 front ends of horizon bar are connected with connecting rod 7 through

last ball hinge

6, 7 lower extremes of connecting rod are connected with mounting platform 9 through ball hinge 8 down, the perpendicular fixed axle 10 that is equipped with of mounting platform 9 upper surface, it is equipped with silk material winding frame 11 to rotate on the fixed axle 10, installation platform 9 is last to have seted up silk material perforation 12 and mounting hole 13, wear to be equipped with electric iron subassembly 14 in the mounting hole 13, be equipped with two on the base 1 and be used for the spacing slotted hole 15 of placing electric iron subassembly 14 lower extreme.

The electric soldering iron assembly 14 comprises a handle rod 16 penetrating in the mounting hole 13, a limiting sleeve 17 positioned above the mounting platform 9 is arranged at the upper end of the handle rod 16, the outer diameter of the limiting sleeve 17 is larger than the inner diameter of the mounting hole 13, the lower end of the handle rod 16 is coaxially connected with a mounting tube 18 through a mounting frame 19, the lower end of the mounting tube 18 is open, the lower end of the mounting tube 18 is in a thick-bottom thin structure, a wire feeding roller 20 is rotatably arranged at the left side part of the mounting frame 19, a roller groove for bypassing wires 21 is formed in the outer circumference of the wire feeding roller 20, a long hole 22 is formed in the left side part of the mounting tube 18 along the axial direction, guide grooves 23 are correspondingly formed in the front side part and the rear side part of the mounting tube 18 along the axial direction, the lower end of each guide groove 23 is communicated with the lower end edge of the mounting tube 18, arc grooves 24 are correspondingly formed in the front side part and the rear side part of the mounting tube 18, and the left end of each arc groove 24 is communicated with the upper end of each guide groove 23, a soldering iron 25 is inserted in the mounting tube 18, a clamping column 26 clamped at the right end of the arc-shaped groove 24 is respectively arranged at the front side and the rear side of the soldering iron 25, a core hole 27 is arranged at the upper part of the soldering iron 25, a heating ceramic core 28 is inserted in the core hole 27, a bracket 29 is arranged in the long hole 22, a connecting plate 30 extending into the mounting tube 18 is arranged at the upper part of the bracket 29, a semi-cylindrical bracket 31 matched with the side part of the heating ceramic core 28 is arranged at the side part of the connecting plate 30, an insulating plate 32 is arranged at the top part of the connecting plate 30, a contact electrode reed 33 is respectively arranged at two sides of the insulating plate 32, a power wire 34 is clamped between each contact electrode reed 33 and the insulating plate 32, the lower ends of the two power wires 34 are connected with the top part of the heating ceramic core 28, a buckle 35 protruding out of the mounting tube 18 is arranged at the top part of the bracket 29, the upper ends of the two power wires 34 sequentially penetrate through the mounting frame 19 upwards, a handle lever 16 and a stop collar 17.

Support guide bar 2 upper end and be equipped with threaded connection and have spacing square nut 39, and spacing square nut 39 rear side is equipped with wire ring 40, and base 1 rear portion is equipped with down wire ring 41, and power cord 34 is worn out by stop collar 17 and is connected with power connector 42 after passing wire ring 40 and wire ring 41 down in proper order again. The power connector 42 is inserted into the soldering iron interface 72 and connected to the outer end of the interface electrode pin.

The bottom of the mounting rack 19 is provided with a wire feeding guide rod 36, the lower end of the wire feeding guide rod 36 is adjacent to the lower end of the soldering iron head 25, the upper part of the wire feeding guide rod 36 is provided with an upper wire guide ring 37, the lower end of the wire feeding guide rod 36 is provided with a lower wire guide ring 38, and the wire 21 wound on the wire winding rack 11 sequentially passes through the wire perforation 12 from top to bottom, bypasses the wheel groove on the wire feeding roller 20, passes through the upper wire guide ring 37 and the lower wire guide ring 38 and then extends into the lower end part of the soldering iron head 25.

Base 1 left side is equipped with clean sponge rack 44 and scaling powder silo 43, and clean sponge rack 44 is used for placing the sponge on clean circuit board 48 surface, and scaling powder silo 43 is used for holding the scaling powder, and base 1 upper surface right side rear portion is equipped with two pressure spring pieces 46 that are used for compressing tightly positioning circuit board 48 through pressure spring set screw 45.

The base 1 is of a rectangular structure as a whole, and four corners of the base 1 are respectively provided with a supporting leg 47.

Radiator 63 includes that the central line all follows the foreign side barrel 73 and the interior side barrel 74 that the vertical direction set up, the equal shutoff in upper and lower both ends of foreign side barrel 73 and interior side barrel 74, the rear side of foreign side barrel 73 and interior side barrel 74 is all uncovered, it is the water conservancy diversion passageway of channel-section channel to form the cross-section between foreign side barrel 73 and the interior side barrel 74, equal fixed connection is on box 53 rear side panel inner wall of rear side of foreign side barrel 73 and the interior side barrel 74 rear side, airflow guide 75 has all been seted up on foreign side barrel 73 inner wall and the interior side barrel 74 outer wall, set up air outlet and the air intake that communicates respectively with the both sides of water conservancy diversion passageway on the box 53 rear side panel, air outlet department is equipped with grid 76, set up the air supply fan 77 that is located the air intake rear side and bloies in the air intake on the box 53 rear side panel.

The circuit board test fixture 51 comprises a horizontally arranged base 78, a test positioning notch is formed in the upper surface of the base 78, a back plate 79 and two vertical rods 80 located on the front side of the back plate 79 are vertically arranged on the base 78, the upper ends of the vertical rods 80 are fixedly connected with the front side of the back plate 79 through positioning plates 126, a moving platform 81 is arranged on the two vertical rods 80 in a penetrating and sliding mode, a connecting frame 82 is fixedly arranged on the upper portion of the front side of the back plate 79, a pressing rod 83 is arranged on the upper portion of the front side of the connecting frame 82, a handle sleeve 84 is arranged on the upper portion of the pressing rod 83, a shaft sleeve 85 is arranged on the lower portion of the front side of the connecting frame 82, a push-pull rod 86 is arranged in the shaft sleeve 85 in a penetrating and sliding mode, the lower end of the push-pull rod 86 is vertically fixed on the rear side of the upper surface of the moving platform 81, the upper end of the push-pull rod 86 is connected with the lower portion of the pressing rod 83 through a connecting plate 87, and two ends of the connecting plate 87 are respectively hinged to the upper end of the push-pull rod 86 and the lower portion of the pressing rod 83.

Be equipped with two power terminal 88 and two load terminal 89 on the base 78, set up on the base 78 with two power terminal 88 and two load terminal 89 bottom four through wires hole 90 that correspond from top to bottom, the anodal 67 of mains voltage output and mains voltage output negative pole 68 respectively through passing two through wires hole 90 first wire with correspond with be connected with a power terminal 88, load incoming end positive pole 69 and load incoming end negative pole 70 respectively through passing another two through wires hole 90's second wire with correspond with a load terminal 89 and be connected.

An insulating electrode mounting plate 91 is arranged on the upper surface of the moving platform 81, a group of left lotus head needle type electrodes 92 and right lotus head needle type electrodes 93 are respectively arranged on the left side and the right side of the insulating electrode mounting plate 91, the lower ends of the left lotus head needle type electrodes 92 and the right lotus head needle type electrodes 93 are respectively protruded out of the lower surface of the moving platform 81, the upper ends of the left lotus head needle type electrodes 92 and the right lotus head needle type electrodes 93 are respectively connected with flexible left electrode leading-out flat cables 94 and right electrode leading-out flat cables 95, and the lower ends of the left electrode leading-out flat cables 94 and the right electrode leading-out flat cables 95 are respectively connected with a power supply binding post 88 and a load binding post 89.

A signal board electric connection socket 96 is arranged on the right side of the base 78, and the signal board electric connection socket 96 is respectively connected with the left electrode leading-out flat cable 94 and the right electrode leading-out flat cable 95 through signal leading-out wires.

The base 78 is provided with a vent 97 located below the test fixture notch.

The left lotus flower head needle type electrode 92 and the right lotus flower head needle type electrode 93 are identical in structure, the right lotus flower head needle type electrode 93 comprises a cylindrical electrode body 98, an extraction electrode 99 connected with a right electrode extraction flat cable 95 is arranged at the upper end of the electrode body 98, an extraction electrode 99 connected with the right electrode extraction flat cable 95 is arranged at the upper end of the electrode body 98, a cylindrical groove is formed in the lower end of the electrode body 98 along the axis direction, a movable needle head 100 is inserted into the cylindrical groove, a spring 101 is arranged between the upper end of the movable needle head 100 and the bottom of the cylindrical groove, and the lower end of the movable needle head 100 is a lotus flower head-shaped electric contact surface 102.

The test signal output observation unit 52 comprises a signal board connection flat cable 103 and a test signal observation board 104, the left end of the signal board connection flat cable 103 is provided with a signal board electric connection plug 105 inserted in the signal board electric connection socket 96, the right end of the signal board connection flat cable 103 is provided with a dock expansion connection socket 106, the left end of the test signal observation board 104 is provided with a dock expansion connection plug-in 107, the dock expansion connection plug-in 107 is inserted in the dock expansion connection socket 106, and the upper surface of the test signal observation board 104 is provided with a row of double-reed socket electrodes 108.

The docking expansion connecting plug 107 comprises a plug board 109, a plurality of positioning slots 110 are uniformly arranged on the left end edge of the plug board 109 at intervals along the front-back direction, a positioning hole 111 is respectively arranged on the plug board 109 at the front side and the back side of the rear part of each positioning slot 110, and a gold-plated contact electrode sheet 112 is arranged on the plug board 109 right behind each positioning hole 111.

Dock expansion connection socket 106 includes socket base 113 fixedly arranged on the upper surface of the right end of signal board connection flat cable 103, the front end and the rear end of the left side of socket base 113 are respectively provided with a positioning plate 114, a cover plate 115 is arranged between the two positioning plates 114, the front side and the rear side of cover plate 115 are respectively provided with a positioning groove matched with positioning plate 114, two positioning plates 114 are rotatably connected with a buckle plate 116 through a hinge shaft 118, the right side of the middle part of buckle plate 116 is provided with a wrench 117, hinge shaft 118 is fixedly connected with buckle plate 116, the outer contour of the cross section of hinge shaft 118 is formed by connecting circular and straight line segments, the lower surface of buckle plate 116 is provided with an elastic convex edge bar 119 used for pressing the upper surface of cover plate 115, a slot 120 with an open right end is formed between cover plate 115 and socket base 113, a reed contact electrode 121 matched with gold-plated contact electrode sheet 112 in one-to-one correspondence is arranged in slot 120, the right end of reed contact electrode 121 is tilted upwards to form an insertion hole 122 between socket base 113, the left side of the upper surface of base 113 is provided with a positioning clamping platform 123 matched with positioning slot 110 in one-to one, the arc projection 124 matched with clamping connection flat contact electrode 125 arranged on the lower surface of cover plate connection flat cable 103.

The control host 50 is an input-output device that integrates three necessary functions. An adjustable voltage of 0-30V can be output. The electronic load can simulate a resistive load of 0-10 kilo-ohms, and the load strength gear selection button 71 is adjustable in three gears, namely 0-200K, 100-2K and 2K-10K.

The load control module 56 controls the load current and voltage to a given value by the load control module 56, and then the load current and voltage are led to the power driving module 54, the array of the power driving module 54 (power tube and load) generates a larger power, and naturally generates a larger amount of heat, and the heat is transferred to the outside of the box 53 by the close-contact heat radiator 63. And the stable operation of each part of circuit is ensured. The air blowing fan 77 blows air into the air guide passage of the radiator 63, and the air flow brings out the heat emitted from the outer cylinder 73 through the air outlet. The inner wall of the outer cylinder 73 and the outer wall of the inner cylinder 74 are provided with air flow guide grooves 75, so that a good air guiding effect is achieved, the heat dissipation area of the heat radiator 63 can be increased, and the heat dissipation effect is improved.

The output voltage adjusting knob 64 and the output current adjusting knob 65 are connected to the adjusting circuit of the switching power supply control module 55 to adjust the voltage and current output. The output voltage and current each have three significant digits which are displayed on an output voltage digital display screen 59 and an output current digital display screen 60, respectively.

The adjustment of the load intensity is effected by a load intensity range selection button 71 connected to an internal input circuit of the load control module 56. The actual voltage and current levels applied to the internal load circuit are displayed by three digits on a load voltage digital display 61 and a load current digital display 62, respectively.

The soldering iron interface 72 is used to connect the heating power connection of a circuit quick-soldering apparatus.

When a circuit board is tested, a standard board 127 of a test circuit building platform is horizontally placed in a test positioning notch, a handle sleeve 84 is held by a hand to press a pressing rod 83 downwards, the pressing rod 83 drives a push-pull rod 86 to move downwards along a shaft sleeve 85 through a connecting plate 87, the push-pull rod 86 drives a moving platform 81 to move downwards along two vertical rods 80, a group of left lotus-head pin type electrodes 92 and a group of right lotus-head pin type electrodes 93 which are installed on the moving platform 81 also move downwards, the left lotus-head pin type electrodes 92 and a group of movable needles 100 at the lower ends of the right lotus-head pin type electrodes 93 are pressed on gold-plated electrode sheets on the standard board 127 of the test circuit building platform, so that related signals are connected into a left lotus-head pin type electrode 92 and a group of right lotus-head pin type electrodes 93 on the moving platform 81 on the standard board 127 of the test circuit building platform, and are respectively led into a base 78 through a left electrode lead-out flat cable 94 and a right electrode lead-out flat cable 95, and are electrically connected with a signal board electric connection socket 96, a power supply terminal 88 and a load terminal 89 on the side of the base 78. The standard board 127 of the test circuit building platform is an independent universal test circuit board, a circuit to be debugged can be built on the standard board, and all input and output signals and observation signals are led out through the gold-plated electrode plates 128 distributed on the periphery of the standard board.

The springs 101 in the left and right lotus-headed

needle electrodes

92 and 93 prop against the movable needle 100, so that the movable needle 100 moves up and down and is pressed against the gold-plated electrode sheet 128 of the standard board 127 of the test circuit building platform. The design mode that the lower end of the movable needle 100 is the lotus-head-shaped electric contact surface 102 is larger than the contact area of the traditional single needle, and the structural mode is more reliable in connection. The vent 97 builds the platform standard 127 for the test circuit in the test process to dissipate heat.

Adopt the gliding structure of hand multi-bar direction, the operation of being convenient for, safe and reliable, this circuit board test fixture 51 has solved the unfavorable condition that often meets among the circuit debugging process, and frequent dismantlement when test circuit built platform standard board 127 need be revised promptly, and the signal is connected repeatedly and is corresponded, obvious inefficiency. In test circuit built platform standard plate 127 level was placed the test locating notch, can dismantle test circuit built platform standard plate 127 fast, to frequently using the welding mode to modify device and circuit connection relation on test circuit built platform standard plate 127 among the debugging process, very big improvement efficiency to reduce test circuit board and external instrument signal connection's unreliability, reduce the signal interference that appears under this kind of circumstances, lead to producing adverse effect to the debugging.

The 15 observation signals externally connected to the double-reed socket electrodes 108 of the test signal observation board 104 are led out through the docking expansion board plug, connected to the docking expansion connection sockets 106 of the signal board connection cables 103, and further connected to the signal board electrical connection sockets 96 of the circuit board test fixture 51 through the signal board electrical connection plugs 105.

The test circuit builds a platform standard board 127 and a test signal observation board 104, and the two parts are circuit boards specially designed for debugging in the instrument. The standard board 127 of the test circuit building platform is designed for building a test circuit, and power and signals are led out by contacting the left lotus-headed needle type electrode 92 and the right lotus-headed needle type electrode 93 through gold-plated electrode plates 128 which are arranged in a certain sequence on the board. The test signal observation board 104 is used for observing the internal signal state of the built test circuit by using external instruments (oscilloscopes, voltmeters and the like), and instrument probes and measuring needles can be conveniently and directly connected to a row of double-reed bayonet electrodes 108.

The docking expansion connecting plug 107 and the docking expansion connecting socket 106 are inserted into a slot 120 formed between a cover plate 115 and a socket base 113 through an inserting plate 109, a gold-plated contact electrode sheet 112 on the inserting plate 109 is contacted with a reed contact electrode 121 and is matched with a positioning clamping table 123 through a positioning clamping groove 110, and an arc-shaped bump 124 is matched with a positioning hole 111 to achieve good positioning contact. When it is desired to remove the docking expansion connector 107 from the docking expansion connector receptacle 106, the wrench 117 is pulled upward, the locking plate 116 is flipped upward, and the arc-shaped protrusion 124 of the lower surface of the cover plate 115 is removed from the positioning hole 111, so that the docking expansion connector 107 can be withdrawn. By adopting the connecting structure, the connection is not only tight and reliable, but also can bear certain tensile force, and the connection interruption caused by external force or dead weight is avoided.

The circuit board quick welder 129 is a part of a multifunctional circuit debugging instrument, and compared with the traditional constant-temperature welding electric iron, the circuit board quick welder mainly has the advantages of being more flexible and convenient to use and capable of achieving quick welding. The multifunctional circuit debugging instrument is specially used for frequently and repeatedly modifying the test circuit, so that the circuit debugging time is reduced on the whole, and the circuit development speed is accelerated.

The circuit board quick welder 129 is connected to a welding iron interface of the debugging instrument host through a power connector 42 on the power line 34, so as to heat and supply power to the welder. The upper ball hinge 6 and the lower ball hinge 8 which are respectively connected with the upper end and the lower end of the connecting rod 7 can limit the movement of the electric soldering iron assembly 14 not to be separated from the mounting platform 9, and the flexible movement of the electric soldering iron assembly 14 in the plane range on the base 1 is realized. After use, the soldering iron head 25 is inserted into any one of the two placing slotted holes 15; the structure mainly solves the problems that the trouble of frequently placing and operating in the welding process and the hands of operators are easily scalded. The mounting frame 19 is provided with a wire feeding roller 20, the wire 21 is wound in a roller groove, the structure is responsible for accurately feeding solder to the lower end of the soldering iron head 25, when the structure is used, the thumb is used for poking the wire feeding roller 20, and the wire 21 (soldering wire) can move downwards along the upper wire guide ring 37 and the lower wire guide ring 38 until the wire contacts the side wall of the lower end of the soldering iron head 25 and is melted on the soldering iron head 25; the structure avoids the defect that one hand is required to hold the welding wire to feed in the traditional welding process, and the other hand can be used for simultaneously rotating and positioning the circuit board 48, so that the operation is more time-saving and labor-saving and more humanized.

For the application requirement that the soldering iron heads 25 in various shapes need to be frequently replaced in the welding process, two clamping columns 26 are symmetrically arranged on the upper portion of the soldering iron head 25 in the front-back direction, the clamping columns 26 can move along the guide groove 23 and the arc-shaped groove 24 which are formed in the mounting tube 18, and finally the clamping columns 26 are located at the right end of the arc-shaped groove 24, so that the soldering iron heads 25 can be mounted and clamped or withdrawn only by rotating the soldering iron heads 25.

Since the heating ceramic core 28 in the soldering iron 25 is often easily damaged, a bracket 29 structure for quickly replacing the heating ceramic core 28 is designed, the heating ceramic core 28 is embedded in a semi-cylindrical bracket 31 at the side of the connecting plate 30, and two power wires 34 are respectively clamped at the inner side of a contact electrode reed 33. When the ceramic heating core is replaced, the soldering iron 25 is firstly pulled out from the mounting tube 18, the soldering iron 25 is separated from the heating ceramic core 28, then the handle 35 is pulled outwards, the bracket 29 with the heating ceramic core 28 is pulled out from the long hole 22, and the bracket 29 can be pulled out. The old heating ceramic core 28 can be removed by pulling out the two power lines 34. The new heating ceramic core 28 is clamped in the semi-cylindrical bracket 31, the power cord 34 is clamped at the inner side of the contact electrode reed, then the bracket 29 is pushed into the long hole 22, and the soldering iron 25 is screwed in, thus completing the replacement. Such replacement of the heating ceramic core 28 is simpler and more convenient than the replacement of a conventional soldering iron heating core.

The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention are all within the scope of the technical solution of the present invention.

Claims

1. The multifunctional integrated circuit debugging instrument with the circuit board rapid welding device is characterized in that: the device comprises a control host, a circuit board test fixture, a test signal output observation unit and a circuit board quick welder; the test signal output end of the circuit board test fixture is connected with the signal input end of the test signal output observation unit;

the circuit board test fixture comprises a horizontally arranged base, a test positioning notch is formed in the upper surface of the base, a back plate and two vertical rods located on the front side of the back plate are vertically arranged on the base, the upper ends of the vertical rods are fixedly connected with the front side of the back plate through a positioning plate, a moving platform is arranged on the two vertical rods in a penetrating and sliding mode, a connecting frame is fixedly arranged on the upper portion of the front side of the back plate, a pressure rod is arranged on the upper portion of the front side of the connecting frame, a handle sleeve is arranged on the upper portion of the pressure rod, a shaft sleeve is arranged on the lower portion of the front side of the connecting frame, a push-pull rod is arranged in the shaft sleeve in a penetrating and sliding mode, the lower end of the push-pull rod is vertically fixed on the rear side of the upper surface of the moving platform, the upper end of the push-pull rod is connected with the lower portion of the pressure rod through a connecting plate, and two ends of the connecting plate are respectively hinged with the upper end of the push-pull rod and the lower portion of the pressure rod;

an insulating electrode mounting plate is arranged on the upper surface of the moving platform, a group of left lotus flower head needle type electrode and right lotus flower head needle type electrode are respectively arranged on the left side and the right side of the insulating electrode mounting plate, the lower ends of the left lotus flower head needle type electrode and the right lotus flower head needle type electrode both protrude out of the lower surface of the moving platform, the upper ends of the left lotus flower head needle type electrode and the right lotus flower head needle type electrode are respectively connected with a flexible left electrode leading-out flat cable and a flexible right electrode leading-out flat cable, and the lower ends of the left electrode leading-out flat cable and the right electrode leading-out flat cable are both connected with a power supply binding post and a load binding post;

the test signal output observation unit comprises a signal board connecting flat cable and a test signal observation board, wherein a signal board electric connection plug which is inserted in the signal board electric connection socket is arranged at the left end of the signal board connecting flat cable, a dock type expansion connection socket is arranged at the right end of the signal board connecting flat cable, a dock type expansion connection plug is arranged at the left end of the test signal observation board, the dock type expansion connection plug is inserted in the dock type expansion connection socket, and a row of double-reed socket electrodes are arranged on the upper surface of the test signal observation board;

the electric soldering iron assembly comprises a handle rod penetrating in the mounting hole, a limiting sleeve positioned above the mounting platform is arranged at the upper end of the handle rod, the outer diameter of the limiting sleeve is larger than the inner diameter of the mounting hole, the lower end of the handle rod is connected with the mounting pipe in the axial direction through a mounting rack, the lower end of the mounting pipe is open, the outer appearance of the lower end of the mounting pipe is of a thick-top-thin structure, a wire feeding roller is rotatably arranged at the left side part of the mounting rack, a wheel groove for bypassing wires is formed in the outer circumference of the wire feeding roller, a long hole is formed in the left side part of the mounting pipe in the axial direction, a guide groove is correspondingly formed in the front side part and the rear side part of the mounting pipe, the lower end of the guide groove is communicated with the lower end edge of the mounting pipe, an arc-shaped groove is correspondingly formed in the front side part and the rear side part of the mounting pipe, and the left end of the arc-shaped groove is communicated with the upper end of the guide groove, the soldering iron is inserted into the installation tube, clamping columns clamped at the right end of the arc-shaped groove are respectively arranged on the front side and the rear side of the soldering iron, a core hole is formed in the upper portion of the soldering iron, a heating ceramic core is inserted into the core hole, a bracket is arranged in the long hole, a connecting plate extending into the installation tube is arranged on the upper portion of the bracket, a semi-cylindrical bracket matched with the side portion of the heating ceramic core is arranged on the side portion of the connecting plate, an insulating plate is arranged at the top of the connecting plate, contact electrode reeds are respectively arranged on two sides of the insulating plate, a power wire is clamped between each contact electrode reed and the insulating plate, the lower ends of the two power wires are connected with the top of the heating ceramic core, a buckle protruding out of the installation tube is arranged on the top of the bracket, and the upper ends of the two power wires sequentially penetrate through the installation frame, the handle rod and the limiting sleeve;

the upper end of the supporting guide rod is in threaded connection with a limiting square nut, an upper wire ring is arranged on the rear side of the limiting square nut, a lower wire ring is arranged on the rear side of the base, a power wire penetrates out of the limiting sleeve and then sequentially penetrates through the upper wire ring and the lower wire ring, and then is connected with a power connector, and the power connector is inserted into a welding iron interface and is connected with the outer end of the interface electrode needle;

2. The multifunctional integrated circuit debugging instrument with the circuit board quick welder of claim 1, characterized in that: the radiator includes that the central line all follows the foreign side barrel and the interior side barrel that the vertical direction set up, the equal shutoff in upper and lower both ends of foreign side barrel and interior side barrel, the rear side of foreign side barrel and interior side barrel is all uncovered, it is the water conservancy diversion passageway of channel bar type to form the cross-section between foreign side barrel and the interior side barrel, the equal fixed connection of foreign side barrel rear side and interior side barrel rear side is on box rear side inboard wall, the air current guide slot has all been seted up on foreign side barrel inner wall and the interior side barrel outer wall, set up air outlet and the air intake that communicates respectively with the both sides of water conservancy diversion passageway on the box rear side panel, air outlet department is equipped with the grid, set up the air supply fan who is located the air intake rear side and bloies to the air intake on the box rear side panel.

3. The multifunctional integrated circuit debugging instrument with the circuit board quick welder of claim 1, characterized in that: the base is provided with a vent hole positioned below the test positioning notch.

4. The multifunctional integrated circuit debugging instrument with the circuit board rapid welder of claim 3, characterized in that: the left lotus flower head needle type electrode and the right lotus flower head needle type electrode are identical in structure, the right lotus flower head needle type electrode comprises a cylindrical electrode body, a lead-out electrode connected with a lead-out flat cable of the right electrode is arranged at the upper end of the electrode body, a cylindrical groove is formed in the lower end of the electrode body along the axis direction, a movable needle head is inserted into the cylindrical groove, a spring is arranged between the upper end of the movable needle head and the bottom of the cylindrical groove, and the lower end of the movable needle head is a lotus flower head-shaped electric contact surface.

5. The multifunctional integrated circuit debugging instrument with the circuit board quick welder of claim 1, characterized in that: the bottom of the mounting rack is provided with a wire feeding guide rod, the lower end of the wire feeding guide rod is close to the lower end of the soldering bit, the upper part of the wire feeding guide rod is provided with an upper wire guide ring, the lower end of the wire feeding guide rod is provided with a lower wire guide ring, and wires wound on the wire winding rack sequentially pass through wire perforation, round a wheel groove on a wire feeding roller, and extend into the lower end part of the soldering bit after passing through the upper wire guide ring and the lower wire guide ring from top to bottom.

6. The multifunctional integrated circuit debugging instrument with the circuit board rapid welder of claim 5, characterized in that: the base left side is equipped with clean sponge bracket and scaling powder silo, and base upper surface right side rear portion is equipped with two pressure spring pieces that are used for compressing tightly the positioning circuit board through pressure spring set screw.

7. The multifunctional integrated circuit debugging instrument with the circuit board rapid welder of claim 6, characterized in that: the base is integrally of a rectangular structure, and four corners of the base are respectively provided with a supporting leg.