Detaching apparatus for detaching component from circuit board

A detaching apparatus includes a bench, a first supporting member attached to the bench, a convey system, a positioning member, a second supporting member, and a detaching member. The convey system is attached to the first supporting member for conveying a circuit board. The positioning member is attached to the first supporting member for positioning the circuit board. The second supporting member is attached to the bench and aligning with the first supporting member. The detaching member is attached to the second supporting member and includes a sliding bracket moving vertically relative to the bench, a moving block moving horizontally in the sliding bracket, a blade attached to the moving block, and a vacuum suction cup attached to the moving block and aligning with the blade.

FIELD

The subject matter herein generally relates to a detaching apparatus for detaching electronic components from a circuit board.

BACKGROUND

Electronic components may be manually detached from a circuit board when something wrong with the electronic components. However, it is inefficient.

DETAILED DESCRIPTION

The present disclosure is described in relation to a detaching apparatus for detaching components from a circuit board.

FIGS. 1-3illustrate an exploded, isometric view of a detaching apparatus100for detaching electronic components203from a circuit board200(shown inFIG. 10) carried by a tray201(shown inFIG. 10). The tray201defines two position holes205(shown inFIG. 10) located two opposite sides of the tray201. The detaching apparatus100comprises a bench20, a first supporting member31, a positioning member33, a second supporting member51, a locating member53, a detaching member55, a power supply device27, and a controlling device70.

The bench20comprises a supporting plate22, a bracket23located below the supporting plate22, and a plurality of supporting foots25mounted below the bracket23. The power supply device27is installed in the bracket23.

The first supporting member31comprises a first supporting bracket310mounted on the supporting plate22, two spaced and parallel rails312mounted on the first supporting bracket310, and a convey system314attached to rails312to move the tray201. The convey system314comprises two convey belts315respectively installed to inner sides of the rails312driven by a driving member316mounted on the supporting plate22. A first sensor73, a second sensor76, and a third sensor75are located between the rails312and controlled by the control device70. The first sensor73and the second sensor76are located near two opposite ends of the rails312, while the third sensor75is located between the first sensor73and the second sensor76.

The positioning member33comprises a stopping member317driven by a driving cylinder3171, a pair of L-shaped abutting plates331attached to the rails312, and a pair of abutting blocks335driven by a pair of first cylinders333. The driving cylinder3171is mounted on the first supporting bracket310. The stopping member317comprises a stopping bar3173capable of moving vertically. The two first cylinders333are mounted on the supporting plate22and located between the abutting plates331, to move the abutting blocks335vertically. A position pin337protrudes from a top surface of each abutting block335. Each abutting plate331comprises a connecting portion3311attached to an outside of the rail312, and an abutting portion3312extending perpendicularly from the connecting portion3311. The two abutting portions3312extend each other and are located above the corresponding convey belts315. The stopping member317is located between the rails312and adjacent to the third sensor75. The driving member316is powered by the power supply device27. In the embodiment, the driving member316is a servo motor.

The second supporting member51comprises an installing plate510, a plurality of supporting poles513connected to a bottom surface of the installing plate510, and two spaced and opposite connecting plates514mounted to a side of the bottom surface of the installing plate510. Each connecting plate514comprises a connecting portion515perpendicularly extending down from the bottom surface of the installing plate510and an extending portion516perpendicularly extending from a distal end of the connecting portion515toward the other connecting plate514. The installing plate510defines a guiding hole517located between the connecting plates514and a plurality of through holes518surrounding the guiding hole517. A middle of a side of the installing plate510defines a cutout519away from the connecting plates514and opposite to the guiding hole517. A mounting board511is mounted perpendicular to the top surface of the installing plate510adjacent to the cutout519.

FIG. 4illustrates the locating member53comprising a connecting block5351driven by a second cylinder531via a piston pin5553, a pressing block5353, a plurality of guiding pins5355, a plurality of resilient members5356, a connecting plate5357mounted to a distal end of the piston pin5553, and two connecting pins5358connected between the connecting plate5357and the connecting block5351. The guiding pins5355are located between the connecting block5351and the pressing block5353, and the resilient members5356are respectively fitted about the guiding pins5355. A bottom end of each guiding pin5355is mounted to the pressing block5353, and a top end of the guiding pin5355is slidably connected to the connecting block5351along a vertical direction.

FIGS. 5-6illustrate the detaching member55comprising a sliding bracket551driven by the third cylinder555via a piston pin5553, a moving block5535driven by a fourth cylinder5531via a piston pin5553, a mounting tab5515attached to an upper portion of the moving block5535, a plurality of blades5536attached to a lower portion of the moving block5535by a holding tab, and a vacuum suction cup557attached to the mounting tab5515and aligning with the blades5536. The third cylinder555can drive the sliding bracket551to move vertically. The fourth cylinder5531can drive the moving block5535to move horizontally in the sliding bracket551. The sliding bracket551comprises a sliding plate5511, and a mounting plate5513perpendicularly extending down from a side of a bottom surface of the sliding plate5511. A middle of a top surface of the sliding plate5511defines a fastening hole5517.

FIGS. 1-2illustrate the controlling device70is attached to an end of the installing plate510of the second supporting member51and comprises a warning lamp77displaying the state of the detaching apparatus100, and an operation interface713. The first cylinder333, the second cylinder531, the third cylinder555, the fourth cylinder5531, the driving member316and the driving cylinder3171are controlled by the controlling device70.

FIGS. 1-9illustrate in assembly of the detaching apparatus100. The second cylinder531is attached to the mounting board511through a plurality of screws (not shown), the piston pin5553of the second cylinder531is received in the cutout519, and the connecting block5351is located below the installing plate510. The sliding bracket551is vertically slid between the connecting plates514of the second supporting member51, the fastening hole5517aligns with the guiding hole517, and the blades5536face the pressing blocks5353. A distal end of the piston pin5553of the third cylinder555extends through the guiding hole517to be mounted in the fastening hole5517of the sliding bracket551. A plurality of screws (not shown) extends through the though holes518from the bottom surface of the installing plate510, to engage in the third cylinder555. The second supporting member51is supported on the supporting plate22above the first supporting member31, the detaching member55is located adjacent to the third sensor75, and the locating member53is located adjacent to the first sensor73. A plurality of screws (not shown) extends through the supporting poles513to engage in the supporting plate22.

FIGS. 8-11illustrate the detaching apparatus100in use. The tray201is placed on the convey belts315adjacent to the first sensor73. The operation interface713is operated to start the detaching apparatus. The first sensor73transmits a signal to the controlling device70when the first sensor73sensing the tray201. The controlling device70controls the driving member316to drive the convey belts315to move the tray201toward the abutting plates331. When the tray201moves adjacent to the second sensor76, the second sensor76transmits a signal to the controlling device70, and the controlling device70controls the driving member316to stop the convey belts315. The controlling device70controls the driving cylinder3171to drive the stopping bar3173to move toward the tray201, until the stopping bar3173abuts against an end of the tray201. The tray201are respectively located between the abutting plates331and the corresponding abutting blocks335, the position pins337align with the corresponding position holes205of the tray201, and the tray201aligns with the locating member53. The controlling device70controls the first cylinder333to drive the abutting blocks335to move toward the tray201, the position pins337are inserted in the position holes205of the tray201. Then, the tray201is moved upward until it is sandwiched between the abutting plates331and the abutting blocks335.

The controlling device70controls the second cylinder531to extend the piston pin5553toward the tray201and the connecting block5351moves toward the tray201until the pressing block5353abuts against the circuit board200. The resilient members5356are deformed. The controlling device70controls the third cylinder555to extend the piston pin5553toward the tray201, until the blades5536are located between the electronic component203and the circuit board200. The sliding plate5511slides between the connecting portions515of the connecting plate514, and is capable of being stopped by the extending portions516. The controlling device70controls the fourth cylinder5531to extend the piston pin5553along the horizontal direction, the blades5536move toward the circuit board200, until the blades5536is inserted between the electronic component203and the circuit board200and severs the connection therebetween. The electronic component203separates from the circuit board200, and located on the blades5536. The vacuum chuck557picks the electronic component203up.

The controlling device70controls the first cylinder333, the second cylinder531, the third cylinder555, the fourth cylinder5531, and the driving cylinder3171to move back. The abutting blocks335move down away from the abutting plates331, the position pin337is disengaged from the position holes205of the tray201and the resilient members5356restore, and the tray201moves down to be supported on the convey belts315. The connecting block5351moves up. The moving block5535moves toward the fourth cylinder5531and the sliding bracket551moves toward the installing plate510, and the blades5536move away from the tray201. The stopping bar3173moves down, to disengage from the tray201. The electronic component203can fall into a recycling box when the vacuum suction cup557stops.

The controlling device70controls the driving member316to drive the convey belts315to move the tray201toward the second sensor76. When the tray201moves adjacent to the third sensor75, the second sensor76transmits a signal to the controlling device70, and the controlling device70controls the driving member316to stop the convey belts315to stop moving the tray201. The tray201can be detached from the first supporting member31.

FIG. 12illustrates a detaching method of the present disclosure. The illustrated order of blocks is illustrative only and the order of the blocks can change according to the present disclosure. Additional blocks can be added or fewer blocks may be utilized, without departing from this disclosure. The example method can begin at block800.

At block800, a circuit board200mounting on a tray201is horizontally moved into a cutting location via a convey system314.

At block802, the circuit board200is locked at the horizontal position via a locating member53.

At block804, a cutting tool such as a blade5536is moved to the circuit board200, such that the blade5536on the cutting tool is vertically aligned between the electronic component203and the circuit board200and horizontally offset from the electronic component.

At block806, the cutting tool horizontally such that the blade5536moves between the electronic component203and the circuit board200to sever any connection there between.

At block808, the cutting tool is moved away from the circuit board200, such that the cutting tool is moved to a position relative to the circuit board200that does not impede horizontal movement of the circuit board200.

At block810, the circuit board200is horizontally moved out of the cutting location via the convey system314.

Even though numerous characteristics and advantages of the embodiments have been set forth in the foregoing description, together with details of the structure and function of the embodiments, the present disclosure is illustrative only, and changes can be made in detail, including in the matters of shape, size, and arrangement of parts within the principles of the embodiments to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.