CN112512293A

CN112512293A - Chip mounter

Info

Publication number: CN112512293A
Application number: CN202011038394.1A
Authority: CN
Inventors: 江百平; 蒋凯宇
Original assignee: Zhejiang Hongguang Technology Co Ltd
Current assignee: Yibin Zhuobong Technology Co ltd
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-03-16
Anticipated expiration: 2040-09-28
Also published as: CN112512293B

Abstract

The invention relates to a chip mounter which comprises a base, an X-Y moving mechanism and a chip mounting mechanism moved by the X-Y moving mechanism, wherein the chip mounting mechanism comprises a chip mounting head and a vacuum sucker arranged on the chip mounting head, a positioning needle is arranged at the lower end of the chip mounting head and used for being inserted into a positioning hole of a material belt and driving the material belt to move for a set distance, a nylon belt stripping mechanism is further arranged on the base and used for clamping the nylon belt and pulling the nylon belt to move reversely in the feeding direction. The invention adopts the positioning needle to drive the feeding of the material belt and the gear structure to realize the stripping of the plastic bag, avoids the influence of the nylon belt on the material taking precision in the stripping process, adjusts the stress of the gear and the material belt through the self-adaptive spring, always keeps the resistance of the belt winding in a reasonable range, and is suitable for various material belts.

Description

Chip mounter

Technical Field

The invention relates to the technical field of chip mounters, in particular to a chip mounter.

Background

The chip mounter is a special device for mounting the chip components, controls the mounting head to travel by using the control system, finishes chip pickup from the feeder through the suction nozzle of the mounting head, automatically mounts the chips onto corresponding bonding pad positions of the appointed circuit board, and finally realizes automatic mounting of the chips on the circuit board. The feeder of a general large-scale chip mounter mainly takes an independent feeder structure as a main part, and the independent feeder can complete the functions of accurate feeding, automatic feeding, waste nylon tape stripping and the like of a material belt.

Chinese utility model patent with publication number CN203151878U discloses an automatic stripping off device of nylon in chip mounter material area, including drive arrangement, transmission shaft with set up in a plurality of reels of epaxial transmission, drive arrangement links firmly with the transmission shaft, and its shortcoming lies in that this kind of stripping off device is required to the stripping torque in material area, and moment is too little to lead to dialling the material failure and can't successfully take out the material spare, and moment too big will tear the position in material area and influence and get the material precision.

Disclosure of Invention

The invention aims to provide a chip mounter which solves the problem that the material taking precision is influenced in the stripping process of a nylon belt.

The above object of the present invention is achieved by the following technical solutions: a chip mounter comprises a base, an X-Y moving mechanism and a chip mounting mechanism moving through the X-Y moving mechanism, wherein the chip mounting mechanism comprises a chip mounting head and a vacuum sucker arranged on the chip mounting head, a positioning needle is arranged at the lower end of the chip mounting head and used for inserting into a positioning hole in a material belt and driving the material belt to move a set distance, a nylon belt stripping mechanism is further arranged on the base and used for clamping the nylon belt and pulling the nylon belt to move reversely along the feeding direction.

Preferably, the nylon strip peeling mechanism comprises a peeling bracket, a rotating shaft arranged on the peeling bracket, a main gear arranged on the rotating shaft, a support rod arranged on one side of the rotating shaft and a pinion arranged on the support rod, wherein the pinion is pressed on the main gear and meshed with the main gear, and an adjusting mechanism for adjusting the pressure between the pinion and the main gear is arranged on the support rod.

Preferably, the peeling support is provided with a driving mechanism for driving the rotating shaft to rotate, and the driving mechanism comprises a motor, a driving wheel arranged on a main shaft of the motor, a driven wheel arranged on the rotating shaft and a transmission belt connected between the driving wheel and the driven wheel.

Preferably, adjustment mechanism is including adjusting support and torsional spring, it rotationally the suit on branch to adjust the support, the pinion sets up on adjusting the support, the torsional spring suit is on branch, just a torque arm of torsional spring is fixed on branch, and another torque arm is connected on adjusting the support, it is used for adjusting the adjusting part of torsional spring torsion size to be provided with on the regulation support.

Preferably, the adjusting assembly comprises an adjusting screw, the adjusting screw is screwed on the adjusting bracket, and the torsion arm of the torsion spring is connected to the adjusting screw.

Preferably, the base is provided with a suction piece positioning table, pressing strips are arranged above the suction piece positioning table, the pressing strips are horizontally arranged and distributed at intervals along the feeding direction, and a gap through which a feeding belt passes is formed between the pressing strips and the suction piece positioning table.

Preferably, a vision proofreading assembly is arranged below the patch mechanism, the vision proofreading assembly comprises a camera, and the camera is arranged on one side of the suction piece positioning table.

The invention has the beneficial effects that: the invention adopts the positioning needle to drive the feeding of the material belt and the gear structure to realize the stripping of the plastic bag, avoids the influence of the nylon belt on the material taking precision in the stripping process, adjusts the stress of the gear and the material belt through the self-adaptive spring, always keeps the resistance of the belt winding in a reasonable range, and is suitable for various material belts.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural view of a nylon belt stripping mechanism in an embodiment of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 1 at A;

in the figure: 1-base, 2-X-Y moving mechanism, 3-patch mechanism, 301-patch head, 302-vacuum chuck, 303-locating pin, 4-nylon strip stripping mechanism, 401-stripping bracket, 402-rotating shaft, 403-main gear, 404-supporting rod, 405-adjusting bracket, 406-pinion, 407-torsion spring, 408-adjusting screw, 409-motor, 410-driving wheel, 411-driven wheel, 412-driving belt, 5-material belt disc, 6-suction piece locating table, 7-circuit board fixing table, 8-vision alignment component, 9-pressing strip, 10-material strip, 11-nylon strip.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Example (b): as shown in fig. 1 and 3, a chip mounter includes a base 1, an X-Y moving mechanism 2, a chip mounting mechanism 3 moved by the X-Y moving mechanism 2, and a circuit board fixing table 7 for fixing a circuit board. The X-Y moving mechanism 2 is an X guide rod and a Y guide rod which are horizontally and vertically arranged, two ends of the Y guide rod are fixed on the base 1 through a mounting seat, two ends of the X guide rod are mounted on the Y guide rod through a sliding seat, a first belt transmission mechanism which drives the sliding seat to move along the Y direction is mounted on the mounting seat, a second belt transmission mechanism which drives the patch mechanism 3 to move along the X direction is mounted on the sliding seat, and the first belt transmission mechanism and the second belt transmission mechanism are both conventional synchronous belt transmission mechanisms.

The chip mounting mechanism 3 comprises a chip mounting head 301 and a vacuum sucker 302 arranged on the chip mounting head 301, wherein the chip mounting head 301 is movably arranged on the X guide rod and is driven to move by a second belt transmission mechanism. The lower extreme of paster head 301 is provided with pilot pin 303, and pilot pin 303 is used for inserting the locating hole in material area and drives the material area and remove the distance of settlement, for example 3mm or 4mm, specifically by the interval decision of the chip on the material area.

The base 1 is further provided with a nylon belt stripping mechanism 4, and the nylon belt stripping mechanism 4 is located at the front end of the base 1 and used for clamping the nylon belt and pulling the nylon belt to move reversely along the feeding direction. The material tape disk 5 is positioned below the nylon tape stripping mechanism 4, and the circuit board fixing platform 7 is positioned at the rear end of the base 1.

As shown in fig. 2, the nylon stripping mechanism 4 includes a stripping bracket 401, a rotating shaft 402 mounted on the stripping bracket 401, a main gear 403 mounted on the rotating shaft 402, a fulcrum bar 404 disposed on one side of the rotating shaft 402, and a sub-gear 406 disposed on the fulcrum bar 404, the sub-gear 406 is pressed against the main gear 403 and meshed with each other, and an adjusting mechanism for adjusting the amount of pressure between the sub-gear 406 and the main gear 403 is disposed on the fulcrum bar 404.

The peeling support 401 is provided with a driving mechanism for driving the rotating shaft 402 to rotate, and the driving mechanism comprises a motor 409, a driving wheel 410 arranged on the main shaft of the motor 409, a driven wheel 411 arranged on the rotating shaft 402, and a transmission belt 412 connected between the driving wheel 410 and the driven wheel 411.

Adjustment mechanism is including adjusting support 405 and torsional spring 407, adjusts support 405 and rotationally the suit on branch 404, pinion 406 sets up on adjusting support 405, torsional spring 407 suit is on branch 404, just a torsion arm of torsional spring 407 is fixed on branch 404, and another torsion arm is connected on adjusting support 405, be provided with the adjusting part who is used for adjusting torsional spring 407 torsion size on adjusting support 405. The adjusting assembly comprises an adjusting screw 408, the adjusting screw 408 is screwed on the adjusting bracket 405, and the torsion arm of the torsion spring 407 is connected to the adjusting screw 408.

As shown in fig. 3, a suction sheet positioning table 6 is arranged on the base 1, a pressing strip 9 is arranged above the suction sheet positioning table 6, the pressing strip 9 is horizontally arranged and distributed at intervals along the feeding direction, and a gap through which a feeding belt passes is arranged between the pressing strip 9 and the suction sheet positioning table 6.

And a vision correction component 8 is arranged below the chip mounting mechanism 3, the vision correction component 8 comprises a camera, and the camera is arranged on one side of the chip suction positioning table 6.

The material belt 10 enters the suction piece positioning table 6 from the material belt reel 5 and passes through a gap between the pressing strips 9 and the suction piece positioning table 6, after the nylon belt 11 is peeled off between the front pressing strip 9 and the rear pressing strip 9, the nylon belt passes through a gap between the pinion 406 and the main gear 403 from the upper part of the front pressing strip 9 forwards, and the pinion 406 and the main gear 403 are clamped together. After the material belt between the front and rear pressing strips 9 finishes sucking the chips, the chip mounting head 301 is inserted into the positioning hole of the material belt 10 through the positioning needle 303 and moves backwards for a set distance to enable the next chip to enter the position to be sucked. The chip mounting head 301 sucks the chip and then moves to the position above the vision correction assembly 8 for photographing, the offset is calculated through the crosshairs on the camera lens, and the position of the chip on the chip mounting head 301 is determined, so that the chip is accurately mounted on the circuit board.

Claims

1. The utility model provides a chip mounter, includes base (1), X-Y moving mechanism (2) and by paster mechanism (3) that X-Y moving mechanism (2) removed, paster mechanism (3) are including paster head (301) and set up vacuum chuck (302) on paster head (301), its characterized in that: the lower extreme of paster head (301) is provided with pilot pin (303), pilot pin (303) are used for inserting the locating hole in material area and drive the distance that the material area removed the settlement, still be provided with nylon tape stripping mechanism (4) on base (1), nylon tape stripping mechanism (4) are used for centre gripping nylon tape and pulling nylon tape along feeding direction reverse movement.

2. The mounter according to claim 1, wherein: the nylon belt peeling mechanism (4) comprises a peeling bracket (401), a rotating shaft (402) arranged on the peeling bracket (401), a main gear (403) arranged on the rotating shaft (402), a support rod (404) arranged on one side of the rotating shaft (402) and a secondary gear (406) arranged on the support rod (404), wherein the secondary gear (406) is pressed on the main gear (403) and is meshed with the main gear, and an adjusting mechanism used for adjusting the pressure between the secondary gear (406) and the main gear (403) is arranged on the support rod (404).

3. The mounter according to claim 2, wherein: the peeling support (401) is provided with a driving mechanism for driving the rotating shaft (402) to rotate, and the driving mechanism comprises a motor (409), a driving wheel (410) arranged on a main shaft of the motor (409), a driven wheel (411) arranged on the rotating shaft (402) and a transmission belt (412) connected between the driving wheel (410) and the driven wheel (411).

4. The mounter according to claim 2, wherein: adjustment mechanism is including adjusting support (405) and torsional spring (407), it rotationally suits on branch (404) to adjust support (405), pinion (406) set up on adjusting support (405), torsional spring (407) suit is on branch (404), just a torsion arm of torsional spring (407) is fixed on branch (404), and another torsion arm is connected on adjusting support (405), it is used for adjusting the adjusting part of torsional spring (407) torsion size to be provided with on adjusting support (405).

5. The mounter according to claim 4, wherein: the adjusting assembly comprises an adjusting screw (408), the adjusting screw (408) is screwed on the adjusting bracket (405), and the torsion arm of the torsion spring (407) is connected to the adjusting screw (408).

6. The mounter according to claim 1, wherein: be provided with on base (1) and inhale piece location platform (6), the top of inhaling piece location platform (6) is provided with layering (9), layering (9) level sets up and follows feeding direction interval distribution, layering (9) and inhale the clearance that is provided with the confession material area and passes between piece location platform (6).

7. The mounter according to claim 6, wherein: the visual proofreading device is characterized in that a visual proofreading component (8) is arranged below the patch mechanism (3), the visual proofreading component (8) comprises a camera, and the camera is arranged on one side of the suction piece positioning table (6).