阅读说明：本技术 一种双排芯片引脚连锡的检测方法 (Detection method for double-row chip pin tin connection ) 是由 胡琼英 于 2021-09-26 设计创作，主要内容包括：本发明属于电子元件领域,尤其是涉及一种双排芯片引脚连锡的检测方法,其双排芯片引脚连锡的检测方法对双排芯片引脚连锡的检测过程中还具体涉及到一种双排芯片引脚连锡的检测装置,该一种双排芯片引脚连锡的检测装置包括外壳,外壳的一侧设有四个支撑脚,外壳内设有工作空间,工作空间的一侧内壁上均匀设有若干个贯穿的进料口,工作空间远离进料口侧的内壁上与进料口对应设有相等个出料口,工作空间内每个进料口与出料口之间都设有检测机构,每个检测机构内都设有用于溶解连锡的修理机构,每个检测机构内还都设有用于清理锡渣的除杂机构,工作空间内壁上靠近进料口处都设有传送带,外壳的一侧设有用于控制整个装置的总控制器。(The invention belongs to the field of electronic elements, in particular to a detection method of double-row chip pin tin connection, which is used for detecting the double-row chip pin tin connection in the detection process of the double-row chip pin tin connection, and also particularly relates to a detection device of the double-row chip pin tin connection, the detection device of the double-row chip pin tin connection comprises a shell, one side of the shell is provided with four supporting legs, a working space is arranged in the shell, the inner wall of one side of the working space is uniformly provided with a plurality of feed inlets which penetrate through, the inner wall of the working space far away from the feed inlet side is provided with equal discharge outlets corresponding to the feed inlets, a detection mechanism is arranged between each feed inlet and each discharge outlet in the working space, a repair mechanism for dissolving the tin connection is arranged in each detection mechanism, an impurity removal mechanism for cleaning tin slag is also arranged in each detection mechanism, and a conveyor belt is arranged on the inner wall of the working space near the feed inlet, one side of the shell is provided with a master controller for controlling the whole device.)

1. A detection method for double-row chip pin tin connection is characterized by comprising the following steps: the detection method of the double-row chip pin tin connection also specifically relates to a detection device of the double-row chip pin tin connection in the detection process of the double-row chip pin tin connection, the detection device of the double-row chip pin tin connection comprises a shell (10), four supporting legs are arranged on one side of the shell (10), a working space (11) is arranged in the shell (10), a plurality of penetrating feed inlets (16) are uniformly arranged on the inner wall of one side of the working space (11), the inner wall of the working space (11) far away from the side of the feed inlets (16) is correspondingly provided with equal discharge outlets (21) corresponding to the feed inlets (16), a detection mechanism (90) is arranged between each feed inlet (16) and each discharge outlet (21) in the working space (11), and a repair mechanism (92) for dissolving the tin connection is arranged in each detection mechanism (90), every still all be equipped with in detection mechanism (90) and be used for clearing up edulcoration mechanism (91) of tin dross, be close to on workspace (11) inner wall feed inlet (16) department all fixed be equipped with a pair of support frame (12), every is every all be equipped with conveyer belt (13) on support frame (12), one side of shell (10) is equipped with master controller (27) that are used for controlling whole device.

2. The method for detecting the double-row chip pin tin connection according to claim 1, characterized in that: detection mechanism (90) include that work space (11) are close to on the inner wall of four supporting legss fixed the setting examine test table (14), it is equipped with a plurality of movable groove (26), every to examine in test table (14) along feed inlet (16) and gag lever post (22) direction all slide in movable groove (26) and be equipped with a movable block (30), movable block (30) are connected through activity spring (29) on the inner wall of movable groove (26), examine test table (14) about movable block (30) symmetry is equipped with two openings and deviates from the supporting legs and is used for being convenient for gliding guard slot (15) of pin.

3. The method for detecting the double-row chip pin tin connection according to claim 2, characterized in that: the detection mechanism (90) further comprises a cylinder wall (19) which is arranged on the inner wall of the working space (11) far away from the detection table (14) and corresponds to the detection table (14), an air cavity (20) with an opening facing the detection table (14) is arranged in the cylinder wall (19), a piston (18) is arranged in the air cavity (20) in a sliding mode, a pressing plate (17) used for slowly extruding a chip is arranged on the piston (18), a limiting groove (23) with an opening facing the cylinder wall (19) is arranged on the side, close to the discharge hole (21), of the detection table (14), and a limiting rod (22) used for limiting is arranged in the limiting groove (23) in a sliding mode.

4. The method for detecting the double-row chip pin tin connection according to claim 3, characterized in that: repair mechanism (92) and include every compression groove (37) of opening orientation activity groove (26) that are equipped with on the inner wall of activity groove (26), every movable block (30) all slide to be established in compression groove (37), the fixed electrode (35) that are equipped with on the inner wall of compression groove (37), be equipped with on fixed electrode (35) and be used for stabilizing electrically conductive spring (36) that lead to, every be close to on movable block (30) fixed electrode (35) end all inlays and is equipped with movable electrode (38).

5. The method for detecting the double-row chip pin tin connection according to claim 4, characterized in that: repair mechanism (92) still include every all fixed setting is used for the heating piece (28) of heating in movable block (30), every heating piece (28) are close to protective housing (15) department all about movable housing (26) symmetry is equipped with two openings towards storage tank (42) of protective housing (15), every storage tank (42) interior all slides and is equipped with soldering piece (44) that are used for melting even tin, every soldering piece (44) all connect through soldering spring (43) on the inner wall of storage tank (42), every heating piece (28) all stretch out a little movable block (30) are kept away from movable housing (26) end, every be equipped with the through-hole in movable block (30), be equipped with in the through-hole and be used for the intercommunication heating piece (28) with the lead wire (41) of moving electrode (38).

6. The method for detecting the double-row chip pin tin connection according to claim 5, characterized in that: the impurity removing mechanism (91) comprises an air passage (24) which is arranged on the inner wall of the limit groove (23) and has an opening facing the limit groove (23), an air guide groove (25) connected to the air passage (24) is further arranged on the side, far away from the cylinder wall (19), of the detection table (14), an air cavity (31) is connected to the end, far away from the limit rod (22), of the air passage (24), a one-way air valve (32) used for preventing air in the air guide groove (25) from flowing back into the limit groove (23) is arranged on the side, close to the air guide groove (25), of the air passage (24), the detection table (14) is symmetrically provided with two ventilation pipes (33) relative to the limit rod (22), the air cavity (31) is simultaneously communicated with the two ventilation pipes (33), and an air cavity (39) which has an opening facing the movable block (30) is arranged on the side wall of the protection groove (15) and is close to each movable block (30), each movable block (30) is communicated with the corresponding ventilation pipe (33), and a filter screen (40) for preventing tin dross from entering the ventilation pipe (33) is fixedly arranged in each air cavity (39).

7. The method for detecting the double-row chip pin tin connection according to the claims 1 to 6, characterized in that: the detection method for the double-row chip pin tin connection comprises the following steps:

s1: positioning, namely conveying the tin-plated chip to a detection table (14) through a conveying belt (13) and positioning through a limiting rod (22);

s2: detecting whether tin is connected or not through a pressing plate (17) and a movable block (30);

s3: dissolving the continuous tin, namely dissolving the continuous tin by electrifying and heating a heating block (28);

s4: the tin slag is cleaned, and the tin slag on the pins is cleaned through air blown out of the air cavity (39);

s5; discharging, and carrying out next working procedure on the detected or repaired chip through a limiting rod (22) and a discharge hole (21).

Technical Field

The invention belongs to the field of electronic elements, and particularly relates to a detection method for double-row chip pin tin connection.

Background

The double-row chip is a general name of a semiconductor element and is also called as a micro integrated circuit, the integrated circuit is ubiquitous in the current life, modern computing, communication, manufacturing and traffic systems including the Internet all depend on the existence of the integrated circuit, the integrated circuit is generally called to tin-plate pins of the double-row chip in the manufacturing process, the current tin-plate method is to spray tin water to enable the pins of the double-row chip to cross the sprayed water, and the pins of the double-row chip are very easy to be connected with tin in the tin-plate process of the pins of the double-row chip due to the fact that gaps among the pins are very small, and normal use of the double-row chip is affected.

Disclosure of Invention

The invention aims to provide a double-row chip pin tin connection detection method which can automatically monitor whether tin connection exists after tin plating of double-row chip pins is finished, aiming at the problems in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme:

a detection method for double-row chip pin tin connection also specifically relates to a detection device for double-row chip pin tin connection in the detection process of the detection method for double-row chip pin tin connection, the detection device for double-row chip pin tin connection comprises a shell, four supporting legs are arranged on one side of the shell, a working space is arranged in the shell, a plurality of penetrating feed inlets are uniformly arranged on the inner wall of one side of the working space, the inner wall of the working space, which is far away from the feed inlet side, is provided with equal discharge outlets corresponding to the feed inlets, a detection mechanism is arranged between each feed inlet and the discharge outlets in the working space, a repair mechanism for dissolving tin connection is arranged in each detection mechanism, an impurity removal mechanism for cleaning tin slag is also arranged in each detection mechanism, a pair of supporting frames is fixedly arranged at the position, which is close to the feed inlet, on the inner wall of the working space, each pair of the supporting frames is provided with a conveying belt, and one side of the shell is provided with a master controller used for controlling the whole device.

Preferably, detection mechanism includes that the work space is close to the fixed platform that examines that sets up on the inner wall of four supporting legss, it is equipped with a plurality of movable groove, every to examine in the platform along feed inlet and gag lever post direction all slide and be equipped with a movable block in the movable groove, the movable block passes through the movable spring to be connected on the inner wall of movable groove, examine the platform about the movable block symmetry is equipped with two openings and deviates from the supporting legs and is used for being convenient for the gliding guard slot of pin.

Preferably, the detection mechanism further comprises a cylinder wall arranged on the inner wall of the working space far away from the detection table and corresponding to the detection table, an air cavity with an opening facing the detection table is arranged in the cylinder wall, a piston is arranged in the air cavity in a sliding manner, a pressing plate used for slowly extruding a chip is arranged on the piston, a limit groove with an opening facing the cylinder wall is arranged on the side, close to the discharge port, of the detection table, and a limit rod used for limiting is arranged in the limit groove in a sliding manner.

Preferably, repair the mechanism and include every the opening that is equipped with on the inner wall in activity groove is towards the compression groove in activity groove, every the movable block all slides and establishes in the compression inslot, the fixed electrode that is equipped with on the inner wall in compression groove, be equipped with the conductive spring who is used for stabilizing the circular telegram on the fixed electrode, every be close to on the movable block fixed electrode end all inlays and is equipped with the movable electrode.

Preferably, repair the mechanism and still include every all fixed setting is used for the heating piece of heating in the movable block, every the heating piece is close to protective tank department all regards to the movable tank symmetry is equipped with the groove of accomodating of two openings towards the protective tank, every it all slides and is equipped with the soldering piece that is used for melting even tin, every to accomodate the inslot the soldering piece all through the soldering spring coupling receive on the inner wall in groove, every the heating piece all stretches out a little the movable block is kept away from movable tank end, every all be equipped with the through-hole in the movable block, be equipped with in the through-hole and be used for the intercommunication the heating piece with the conductor wire of moving electrode.

Preferably, the edulcoration mechanism includes the air flue of opening towards the spacing groove that sets up on the inner wall of spacing groove, keep away from in the test table cylinder wall side still is equipped with the connection and is in air guide groove on the air flue, the air flue is kept away from spacing rod end connection is equipped with the air cavity, be close to in the air flue the air guide groove side is equipped with the one-way pneumatic valve that is used for preventing air guide inslot gas to the spacing inslot against the current, the test table about the spacing rod symmetry is equipped with two ventilation pipes, the air cavity communicates two simultaneously the ventilation pipe, be close to every on the protection groove lateral wall the movable block department all is equipped with the wind chamber of opening towards the movable block, every the movable block all communicates the correspondence the ventilation pipe, every the wind intracavity all is fixed to be equipped with and prevents that the tin dross from getting into the filter screen of ventilation pipe.

Preferably, the detection method for the double-row chip pin tin connection comprises the following steps:

s1: positioning, namely conveying the tin-plated chip to a detection table through a conveying belt and positioning through a limiting rod;

s2: detecting whether continuous tin exists or not through the pressing plate and the movable block;

s3: dissolving continuous tin, namely dissolving the continuous tin by electrifying and heating a heating block;

s4: cleaning tin slag, and cleaning the tin slag on the pins through air blown out from the air cavity;

s5; discharging, and carrying out next working procedure on the detected or repaired chip through the limiting rod and the discharge hole.

Has the advantages that: through the extrusion of clamp plate and movable block, can detect whether chip pin has can also repair even tin when having even tin, improve the yields.

The gas in the gas cavity blows off the tin on the chip pin through the air cavity and the filter screen, and prevents the melted tin block from being clamped on the chip pin to cause the bad tin connection.

Through the separated movement of the movable blocks, the chip pins can be separately repaired when being repaired, and good chip pins cannot be heated.

Drawings

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

FIG. 2 is a schematic diagram of a structural implementation of the present invention;

FIG. 3 is a schematic view of FIG. 2 taken along line A-A;

FIG. 4 is a schematic view of the direction B-B in FIG. 2;

FIG. 5 is an enlarged view of FIG. 2 at C;

FIG. 6 is an enlarged view of FIG. 2 at D;

fig. 7 is an enlarged schematic view of E in fig. 3.

In the figure, a housing 10; a workspace 11; a support frame 12; a conveyor belt 13; a detection station 14; a shield bath 15; a feed inlet 16; a press plate 17; a piston 18; a cylinder wall 19; an air cavity 20; a discharge port 21; a stopper rod 22; a limit groove 23; an air passage 24; a gas guiding groove 25; a movable groove 26; a main controller 27; a heating block 28; a movable spring 29; a movable block 30; an air cavity 31; a one-way air valve 32; a vent pipe 33; an airway tube 34; a fixed electrode 35; a conductive spring 36; a compression groove 37; a moving electrode 38; a wind chamber 39; a filter screen 40; a conductive line 41; a receiving groove 42; a soldering spring 43; solder bumps 44; a detection mechanism 90; an impurity removal mechanism 91; a repair mechanism 92.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

In the description of the present invention, it should be noted that the terms "inside", "below", and the like refer to orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention conventionally place when used, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Referring to fig. 2 and 3, a detection method of double row chip pin tin connection, which is a detection method of double row chip pin tin connection and particularly relates to a detection device of double row chip pin tin connection in a detection process of double row chip pin tin connection, the detection device of double row chip pin tin connection comprises a shell 10, one side of the shell 10 is provided with four supporting legs, a working space 11 is arranged in the shell 10, the inner wall of one side of the working space 11 is uniformly provided with a plurality of feed inlets 16, the inner wall of the working space 11 far away from the feed inlets 16 is provided with equal discharge outlets 21 corresponding to the feed inlets 16, a detection mechanism 90 is arranged between each feed inlet 16 and each discharge outlet 21 in the working space 11, a repair mechanism 92 for dissolving tin connection is arranged in each detection mechanism 90, an impurity removal mechanism 91 for cleaning tin slag is also arranged in each detection mechanism 90, a pair of support frames 12 are fixedly arranged on the inner wall of the working space 11 and close to the feed inlet 16, a conveyor belt 13 is arranged on each pair of support frames 12, and a master controller 27 for controlling the whole device is arranged on one side of the shell 10.

Further, with reference to fig. 3, the detection mechanism 90 includes the detection platform 14 that fixedly sets up on the inner wall that includes workspace 11 and is close to four supporting legss, it is equipped with a plurality of movable groove 26 to detect in the platform 14 along feed inlet 16 and gag lever post 22 direction, all slide in every movable groove 26 and be equipped with a movable block 30, movable block 30 passes through movable spring 29 and connects on the inner wall of movable groove 26, it is equipped with two openings and deviates from the supporting legss and is used for being convenient for the gliding guard slot 15 of pin to detect the platform 14 about movable block 30 symmetry.

Further, with reference to fig. 2, the detection mechanism 90 further includes a cylinder wall 19 disposed on the inner wall of the working space 11 far away from the detection table 14 and corresponding to the detection table 14, an air cavity 20 having an opening facing the detection table 14 is disposed in the cylinder wall 19, a piston 18 is slidably disposed in the air cavity 20, a pressing plate 17 for slowly pressing the chip is disposed on the piston 18, a limit groove 23 having an opening facing the cylinder wall 19 is disposed on the side of the detection table 14 close to the discharge port 21, and a limit rod 22 for limiting is slidably disposed in the limit groove 23.

Further, referring to fig. 5, the repairing mechanism 92 includes a compression groove 37 provided on an inner wall of each movable groove 26 and having an opening facing the movable groove 26, each movable block 30 is slidably disposed in the compression groove 37, a fixed electrode 35 is fixedly disposed on the inner wall of the compression groove 37, a conductive spring 36 for stabilizing the power supply is provided on the fixed electrode 35, and a movable electrode 38 is embedded on an end of each movable block 30 close to the fixed electrode 35.

Further, referring to fig. 3 and 5, the repair mechanism 92 further includes a heating block 28 fixedly disposed in each movable block 30 for heating, two receiving grooves 42 with openings facing the protective groove 15 are symmetrically disposed in the positions of the heating blocks 28 close to the protective groove 15 with respect to the movable groove 26, a soldering block 44 for melting the continuous solder is slidably disposed in each receiving groove 42, each soldering block 44 is connected to the inner wall of the receiving groove 42 through a soldering spring 43, each heating block 28 slightly extends out of the movable block 30 away from the movable groove 26, a through hole is disposed in each movable block 30, and a conductive wire 41 for communicating the heating block 28 with the movable electrode 38 is disposed in the through hole.

Further, with reference to fig. 4, fig. 6, fig. 7, the impurity removing mechanism 91 includes an air passage 24 provided on an inner wall of the limiting groove 23 and having an opening facing the limiting groove 23, an air guide groove 25 connected to the air passage 24 is further provided on a side of the detecting table 14 away from the cylinder wall 19, an air cavity 31 is provided at a side of the air passage 24 away from the limiting rod 22, a one-way air valve 32 for preventing air in the air guide groove 25 from flowing back into the limiting groove 23 is provided in the air passage 24 close to the air guide groove 25, the detecting table 14 is symmetrically provided with two ventilation pipes 33 about the limiting rod 22, the air cavity 31 is simultaneously communicated with the two ventilation pipes 33, an air cavity 39 having an opening facing the movable block 30 is provided on a side wall of the protecting groove 15 close to each movable block 30, each movable block 30 is communicated with the corresponding ventilation pipe 33, and a filter screen 40 for preventing tin dross from entering the ventilation pipe 33 is fixedly provided in each air cavity 39.

Further, the detection method for the double-row chip pin tin connection comprises the following steps:

s1: positioning, namely conveying the tinned chip to a detection table 14 through a conveying belt 13 and positioning through a limiting rod 22;

s2: detecting whether continuous tin exists or not through the pressing plate 17 and the movable block 30;

s3: dissolving the continuous tin, namely dissolving the continuous tin by electrifying and heating the heating block 28;

s4: cleaning tin slag, and cleaning the tin slag on the pins through air blown out from the air cavity 39;

s5; discharging, and carrying out next working procedure on the detected or repaired chip through the limiting rod 22 and the discharge hole 21.

Initial state: the movable spring 29 is in a normal state, the piston 18 is in a contracted state, and the movable electrode 38 is in a power-off state.

The working principle is as follows: the tinned chip is conveyed to the detection table 14 through the conveyor belt 13, the chip is limited by the limiting rod 22, after the chip is contacted with the limiting rod 22, the master controller 27 gives a signal to the soldering block 44, the soldering block 44 slides out of the accommodating groove 42, the soldering block 44 is inserted into a gap between chip pins, then the gas in the air cavity 20 is increased, the piston 18 is pushed out, the pressing plate 17 presses the chip, if the chip pins have continuous tin, the pressing plate 17 presses the chip and simultaneously presses the corresponding movable block 30, the movable block 30 slides towards the fixed electrode 35, the movable electrode 38 is contacted with the conductive spring 36, the conductive spring 36 is compressed, the movable electrode 38 is electrified with the fixed electrode 35, the heating block 28 is electrified and heated through the conductive wire 41, the heating block 28 heats the soldering block 44 to melt the continuous tin on the chip pins, if the chip pins have no continuous tin, the heating block 28 will not be triggered to heat, and the pressing plate 17 and the movable block 30 can not only effectively detect whether the chip pin has tin connection, but also repair the tin connection, improve the yield, when the movable block 30 slides, the movable block 30 compresses the air in the compression groove 37 into the air cavity 31 through the air duct 34 and the air guide groove 25, after the detection is finished, the limiting rod 22 is contracted, the gas in the limiting groove 23 is compressed into the gas cavity 31 through the gas channel 24 and the one-way gas valve 32, the gas in the gas cavity 31 blows off the molten continuous tin on the chip pin from the chip pin through the air cavity 39 and the filter screen 40, the molten continuous tin block is prevented from being clamped on the chip pin to cause poor continuous tin, after the pressing plate 17 and the solder bumps 44 are reset, the chip on the conveyor belt 13 is ejected from the inspection table 14 through the ejection port 21, and the next chip is inspected.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.