CN111266257A

CN111266257A - Automatic assembling and aligning equipment

Info

Publication number: CN111266257A
Application number: CN202010248080.8A
Authority: CN
Inventors: 陈灿华; 邓发友; 付亮; 胡煦; 高罡星
Original assignee: World Precision Manufacturing Dongguan Co Ltd
Current assignee: World Precision Manufacturing Dongguan Co Ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-06-12

Abstract

The invention discloses automatic assembly alignment equipment which comprises a conveying device, a dispensing device, an assembling device, a screwing device and a spraying device, wherein the conveying device is used for conveying a fastener supported on a positioning jig and a touch pen fixed in the positioning jig; the dispensing device is used for dispensing thread glue on the outer threads of the pen core positioned at the opening of the pen container; the assembling device is arranged between the conveying device and the spraying device in a reciprocating mode, and is used for transferring the fasteners on the positioning jig to the spraying device, spraying the catalyst on the inner walls of the fasteners by matching with the spraying device, and sleeving the sprayed fasteners on the dispensed pen cores; the screwing device is used for screwing the fastener sleeved on the pen core, so that the fastener is adjusted and bonded at the assembling position, one end of the fastener at the assembling position is screwed into the pen container, and the other end of the fastener is positioned outside the pen container. The equipment can realize automatic flow operation, and has the advantages of simple structure, high assembly precision and high efficiency.

Description

Automatic assembling and aligning equipment

Technical Field

The invention relates to an assembling device, in particular to an automatic assembling and aligning device.

Background

In order to facilitate the use, electronic products such as mobile phones, tablet computers, electronic dictionaries and the like are often controlled by using a touch pen, the touch pen is generally inserted into the electronic products such as the mobile phones and the like and is pulled out when the touch pen is used, and along with the fact that the electronic products are smaller and smaller, the holding space reserved for the touch pen is smaller and smaller, the touch pen becomes exquisite accordingly, and therefore the manufacturing difficulty of the touch pen is increased. The touch control pen generally comprises a pen container and a pen core penetrating the pen container, and due to the fact that the pen core has a certain length, in order to prevent the pen core from shaking relative to the pen container, in part of the touch control pen, a fastener is additionally arranged between the pen core and the pen container after the pen core is aligned and assembled in the pen container to strengthen connection and positioning, but the finer fastener is not easy to align, assemble and glue-dispensing and fixing between the pen container and the pen core. Moreover, the assembly position of the fastener relative to the pen container and the pen core must be controlled within a limited numerical range. At present, assembly and glue dispensing fixing of a fastener between a pen container and a pen core are generally carried out in a manual operation mode, alignment assembly and glue dispensing are carried out through proficiency and experience of operators, efficiency is low, accuracy of assembly and glue dispensing cannot be guaranteed, and particularly the problem that the product quality is influenced due to the fact that redundant glue pollutes electronic components on the inner wall of the pen container and the outer wall of the pen core in the glue dispensing process is prevented.

Therefore, there is a need for an automatic assembly and alignment apparatus with simple structure, high assembly accuracy and high efficiency to overcome the above problems, so as to improve the production efficiency and the product quality.

Disclosure of Invention

The invention aims to provide automatic assembly aligning equipment which is simple in structure, high in assembly accuracy, high in efficiency and firm in assembly

In order to achieve the purpose, the invention discloses automatic assembly alignment equipment which is suitable for assembling a fastener between a pen core and a pen container of a touch pen, and comprises a conveying device, a dispensing device, an assembling device, a screwing device and a spraying device, wherein the dispensing device, the assembling device and the screwing device are sequentially arranged along the conveying direction of the conveying device, the spraying device is arranged beside the assembling device, and the conveying device is used for conveying the fastener supported on a positioning jig and the touch pen fixed in the positioning jig; the dispensing device is used for dispensing thread glue on the outer threads of the pen core positioned at the opening of the pen container; the assembling device is arranged between the conveying device and the spraying device in a reciprocating mode, is used for transferring the fastening piece on the positioning jig to the spraying device, is matched with the spraying device to spray a catalyst on the inner wall of the fastening piece, and is also used for sleeving the sprayed fastening piece on the pen core after dispensing; the screwing device is used for screwing the fastening piece sleeved on the pen core, so that the fastening piece is adjusted and bonded at an assembling position, one end of the fastening piece at the assembling position is screwed into the pen container, and the other end of the fastening piece is positioned outside the pen container.

Compared with the prior art, the automatic assembling and aligning equipment of the invention comprises a conveying device for conveying the fastening piece supported on the positioning jig and the touch control pen fixed in the positioning jig, the dispensing device firstly dispenses thread glue on the outer thread of the pen core, the assembling device is matched with the spraying device, the fastening piece sprayed by the spraying device is sleeved on the dispensed pen core, the screwing device screws the fastening piece to the assembling position at the opening of the pen container, and the fastening piece screwed to the assembling position is firmly adhered to the assembling position under the action of the catalyst and the thread glue in the process of screwing the fastening piece to the assembling position at the opening of the pen container. Thereby effectively improving the bonding firmness, avoiding the problem of product pollution caused by glue overflow due to relatively long curing time of the thread glue to a certain extent, and effectively ensuring the product quality while improving the production efficiency.

Preferably, the conveying device includes two conveying rails arranged side by side, a dispensing device and a combining device are sequentially erected above the two conveying rails and can move back and forth between the two conveying rails, the two screwing devices are arranged in one-to-one correspondence with the two conveying rails at the rear side of the combining device, and the spraying device is fixedly arranged beside at least one conveying rail.

Preferably, the conveying device further comprises a rail-changing mechanism arranged between the two conveying guide rails, the rail-changing mechanism comprises a pushing plate arranged at the head end and the tail end of the two conveying guide rails and positioned below the head end and the tail end of the two conveying guide rails, a carrying guide rail arranged between the two conveying guide rails and having a conveying direction perpendicular to the conveying direction of the two conveying guide rails, and two pushing members arranged at the head end of one conveying guide rail and the tail end of the other conveying guide rail, the pushing plate is used for pushing or carrying the positioning jig, so that the positioning jig can be separated from or fall back onto the conveying guide rails, and the pushing members are used for pushing the positioning jig separated from the conveying guide rails so as to be transferred to the other conveying guide rails through the carrying guide rails.

Preferably, the dispensing needle nozzle of the dispensing device is arranged in a manner of deflecting.

Preferably, the assembly device can rotate the moved fastener by a certain angle, so that the inner wall of the fastener is opposite to the nozzle of the spraying device, and the assembly device can drive the fastener to rotate relative to the nozzle so as to spray the catalyst on the inner wall of the fastener in the circumferential direction.

Preferably, the nozzle of the spraying device can make oblique line movement close to or far away from the fastener and can also be deflected at a certain angle relative to the fastener.

Preferably, the spraying device also comprises a mounting seat, and a first driver, a rotating disc, a follow-up plate, a second driver and a spray head which are arranged on the mounting seat, the first driver is arranged on the back surface of the mounting seat, the rotating disc is rotatably arranged on the front surface of the mounting seat and is connected with the output end of the first driver, the follow-up plate is obliquely fixed on the rotating disc relative to the mounting seat, the second driver is arranged on the follow-up plate, the nozzle is connected with the output end of the second driver through the spray head connected with the nozzle, the second driver can drive the spray head to move diagonally relative to the mounting seat, the first driver can drive the rotating disc to rotate, so that the follow-up plate drives the second driver to rotate, and the spray head drives the spray nozzle to deflect at a certain angle relative to the mounting seat.

Preferably, the spraying device further includes a first linear guide rail and a driving plate disposed on the back of the mounting seat, the linear guide rail is disposed along the longitudinal direction of the mounting seat, one end of the driving plate is slidably disposed on the first linear guide rail, the other end of the driving plate is provided with a linear chute disposed along the transverse width direction of the driving plate, an arc chute is disposed on the mounting seat at a position corresponding to the linear chute along the longitudinal direction of the mounting seat, the insertion portion of the rotating disc penetrates through the arc chute and is slidably engaged with the linear chute, the first driver can push the driving plate, so that one end of the driving plate slides along the first linear guide rail, and the other end of the driving plate rotates relatively, thereby driving the rotating disc penetrating through the arc chute and the linear chute to rotate.

Preferably, the screwing device comprises a torsion joint arranged above the conveying device, the torsion joint can move linearly to be connected with or separated from the fastening piece, and the torsion joint can also rotate to drive the fastening piece to rotate around the pen core until the torsion joint is screwed at an assembling position.

Preferably, the twisted joint is tubular and provided with a slotted hole on the pipe wall, and the pipe orifice of the twisted joint is provided with an inserting structure which is in concave-convex fit with the top end of the fastener.

Drawings

Fig. 1 is an exploded view of some components of the stylus according to the present invention.

Fig. 2 is a schematic perspective view of a positioning fixture according to the present invention.

Fig. 3 is a side view of the automated assembly alignment apparatus of the present invention.

Fig. 4 is a schematic plan view of the automatic assembly alignment apparatus of the present invention.

Fig. 5 is a schematic perspective view of the conveyor of the present invention.

Fig. 6 is a schematic perspective view of a dispensing device according to the present invention.

Fig. 7 is a schematic perspective view of an assembly device of the present invention.

Fig. 8 is a schematic view of an angle structure of the spray coating device of the present invention.

Fig. 9 is a schematic view of another angle of the spraying device of the present invention.

Fig. 10 is a schematic perspective view of the screwing device of the present invention.

Fig. 11 is a perspective view of the screwing head of the present invention.

Fig. 12 is an enlarged view of a portion a in fig. 5.

Detailed Description

In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.

Referring to fig. 1 and 2, in the present application, a pen core 201 of a stylus pen 200 is sleeved and fixed in a pen barrel 202, and at least one fastener 300 may be installed between the pen core 201 and the pen barrel 202 in order to enhance the firmness of the pen core 201 assembled in the pen barrel 202 and prevent shaking, in a stylus pen 200 for electronic products such as mobile phones, tablet computers, electronic dictionaries, and the like. Specifically, the fastening member 300 includes, but is not limited to, a nut, and the top end of the fastening member 300 has a plurality of grooves 301 arranged at intervals, in this embodiment, the number of the grooves 301 is 4, and the grooves are arranged symmetrically. The wall of the pen container 202 is equally divided along the circumference thereof into 3 slots 2021, and the 3 slots 2021 can be used for conveniently dispensing the pen core 201 and observing the assembling position between the fastener 300 and the pen core 201. The fastener 300 is specifically fixed at the opening of the pen barrel 202, one end of the fastener is positioned in the pen barrel 202, and the other end of the fastener is positioned outside the pen barrel 202, so that the required assembly position w1 of the fastener 300 can be controlled by the assembly distance h between the top end surface of the fastener and the tip of the pen core 201, and is specifically controlled to be about 5.3mm, and the error is plus or minus 0.03 mm.

Referring to fig. 2 to 4, the invention discloses an automatic assembly and alignment device 100, which is suitable for assembling a fastener 300 between a pen core 201 and a pen container 202 of a touch pen 200, and mainly aims to realize firm bonding of the fastener 300 on the pen core 201 by screwing the fastener 300 between the pen core 201 and the pen container 202 in an aligned manner and spraying a catalyst on an internal thread of the fastener 300 through the combination of a threaded glue and a point on the external thread of the pen core 201, so that the assembling firmness of the pen core 201 in the pen container 202 is enhanced and the pen core is prevented from shaking. Specifically, the automatic assembling and aligning apparatus 100 of the present invention includes a conveying device 10 arranged along a longitudinal direction of a working platform 101, a dispensing device 20, an assembling device 30 and a screwing device 40 arranged in sequence along the conveying direction of the conveying device 10, and a spraying device 50 disposed beside the assembling device 30. The transmission device 10 is used for transmitting the fastener 300 supported on the positioning column 61 of the positioning fixture 60 and the touch pen 200 fixed in the positioning fixture 60; the dispensing device 20 is used for dispensing thread glue on the external thread of the pen core 201 at the opening of the pen container 202; the assembling device 30 reciprocates between the conveying device 10 and the spraying device 50, and is used for transferring the fastener 300 on the positioning jig 60 to the spraying device 50, spraying a catalyst on the inner wall of the fastener 300 by matching with the spraying device 50, and sleeving the sprayed fastener 300 on the dispensed pen core 201; the screwing means 40 is used to screw the fastener 300 fitted over the cartridge 201 so that the fastener 300 is adjusted and bonded at the assembling position w1 where one end of the fastener 300 in the assembling position w1 is screwed into the barrel 202 and the other end is positioned outside the barrel 202.

Of course, the automatic assembling and aligning apparatus 100 disclosed in the present invention further includes a housing (not shown in the drawings) covering the exterior of the conveying device 10, the dispensing device 20, the assembling device 30, the screwing device 40 and the spraying device 50, and a control system for controlling the coordination among the conveying device 10, the dispensing device 20, the assembling device 30, the screwing device 40 and the spraying device 50 electrically connected thereto, wherein the control system is a conventional control system, and the structure and control principle thereof are well known in the art, and therefore, the detailed description thereof is omitted herein.

In order to balance the production line for efficiency, the conveyor 10 comprises two conveyor rails 11 arranged side by side. The dispensing device 20 and the assembling device 30 are both provided in one number and are sequentially arranged above the two conveying rails 11, so as to move between the two conveying rails 11, and further, the corresponding actions can be alternately completed on the two conveying rails 11. The number of the spraying devices 50 is at least one, and the spraying devices can be fixedly arranged at the side of any conveying guide rail 11. Since the time required for the screw alignment is relatively long, the screw devices 40 are disposed at the rear side of the dispensing device 20 and correspond to the two conveying rails 11 one by one.

Referring to fig. 5, the conveying device 10 further includes a rail-changing mechanism 12 disposed between the two conveying rails 11, the rail-changing mechanism 12 includes a pushing plate 121 disposed at the head end and the tail end of the two conveying rails 11 and located below the two, a receiving rail 122 disposed between the two conveying rails 11 and having a conveying direction perpendicular to the conveying direction of the two, and two pushing members 123 disposed at the head end of one conveying rail 11 and the tail end of the other conveying rail 11, the pushing plate 121 is used for pushing or receiving the positioning fixture 60, so that the positioning fixture 60 can be detached from or fall back onto the conveying rail 11, and the pushing members 123 are used for pushing the positioning fixture 60 detached from the conveying rail 11, so that the positioning fixture 60 can be transferred to the other conveying rail 11 through the receiving rail 122. The rail replacing mechanism 12 is simple in structure, space is effectively utilized, layout is reasonable, conveying of the positioning jig 60 in the two conveying guide rails 11 is quickly and effectively achieved, and the problems of positioning, conveying and the like when rail replacing is carried out through a manipulator are solved.

Referring to fig. 6, the dispensing nozzle 21 of the dispensing device 20 is disposed in a manner of being capable of deflecting so as to dispense thread glue to the pen core 201. When the dispensing needle nozzle 21 is deflected, not only circumferential dispensing of the pen core 201 outside the opening of the pen container 202 is facilitated, but also dispensing of the pen core 201 inside the opening of the pen container 202 can be achieved by inserting the pen core 201 into the pen container 202 through a slot 2021 formed in the wall of the pen container 202. Specifically, the dispensing device 20 further includes a dispensing driving mechanism 22 and a rotating mechanism 23 (see fig. 5), the dispensing driving mechanism 22 drives the dispensing nozzle 21 connected thereto to move linearly and rotate, so that the dispensing nozzle 21 can approach the barrel 202 and swing to a position convenient for dispensing with respect to the barrel 202. The rotating mechanism 23 is disposed below the conveying guide rail 11 of the conveying device 10 and can move linearly up and down relative to the conveying device 10 to push or receive the positioning jig 60, so that the positioning jig 60 can be separated from the conveying device 10, the rotating mechanism 23 drives the positioning jig 60 to rotate, the dispensing needle nozzle 21 is relatively fixed after rotating 120 degrees every time, the rotating mechanism 23 drives the pen container 202 to rotate, threaded glue is dispensed at the external thread of the pen core 201, and glue is distributed more uniformly and bonded more firmly. In addition, the dispensing device 20 further includes a waste glue collecting barrel 24 disposed below the dispensing driving mechanism 22 for collecting the residual glue at the dispensing needle nozzle 21.

Referring to fig. 7, the assembly device 30 may rotate the moving fastener 300 at an angle such that the inner wall of the fastener 300 is opposite to the nozzle 51 of the spraying device 50, and the assembly device 30 may drive the fastener 300 to rotate relative to the nozzle 51 so as to spray the catalyst on the inner wall in the circumferential direction. Specifically, the assembling device 30 includes a clamping jaw 31 and an assembling driving mechanism 32 connected to the clamping jaw 31, a linear module of the assembling driving mechanism 32 can drive the clamping jaw 31 to make a linear motion to grab and transfer the fastener 300, a rotating driver 321 connected to an output end of the linear module can drive the clamping jaw 31 connected thereto to rotate 90 ° relative to the working platform 101, so that the fastener 300 swings to a position where an inner wall thereof can be opposite to the nozzle 51 of the spraying device 50, at this time, the fastener 300 is turned from flat to upright, which is convenient for the nozzle 51 to spray the catalyst, and the sprayed catalyst is not easy to flow out in the return process. The clamping jaw 31 can also rotate 360 degrees around the nozzle 51 under the driving of the rotary driver 322 connected to the output end of the rotary driver 321, so that the nozzle 51 does not need to rotate, and the uniform spraying of the catalyst on the circumferential direction of the inner wall of the fastener 300 can be realized only by driving the fastener 300 to rotate by the clamping jaw 31. In addition, a fiber sensor 323 for sensing whether the clamping jaw 31 clamps the fastener 300 is further provided at the center of the clamping portion of the clamping jaw 31.

Referring to fig. 8 and 9, after the clamping jaw 31 drives the fastening member 300 to the predetermined spraying position and is in the vertical direction, the nozzle 51 of the spraying device 50 can make an oblique movement close to or away from the fastening member 300 and further close to the inner wall of the fastening member 300, and then the corresponding spraying operation is completed. The nozzle 51 is provided to be swingable for the purpose of improving the adaptability.

Specifically, the spraying device 50 further includes a mounting base 52, a first driver 53, a rotating disc 54, a follower plate 55 and a second driver 56, the first driver 53 is installed on the back surface of the mounting base 52, the rotating disc 54 is rotatably installed on the front surface of the mounting base 52 and is connected to the output end of the first driver 53, the follower plate 55 is obliquely fixed on the rotating disc 54 relative to the mounting base 52, the second driver 56 is installed on the follower plate 55, the nozzle 51 is connected to the output end of the second driver 56 through a nozzle 57 connected thereto, the second driver 56 can drive the nozzle 57 to drive the nozzle 51 to diagonally move relative to the mounting base 52, the first driver 53 can drive the rotating disc 54 to rotate, so that the follower plate 55 drives the second driver 56 to rotate, and the nozzle 51 swings at a certain angle relative to the mounting base 52.

More specifically, the spraying device 50 further includes a linear guide rail 521 and a driving plate 522 disposed on the back of the mounting seat 52, the linear guide rail 521 is disposed along the longitudinal direction of the mounting seat 52, one end of the driving plate 522 is slidably disposed on the linear guide rail 521, the other end of the driving plate 522 is provided with a linear sliding slot 5221 disposed along the transverse width direction of the driving plate 522, an arc-shaped sliding slot 523 is disposed on the mounting seat 52 along the longitudinal direction of the mounting seat corresponding to the linear sliding slot 5221, the insertion portion 541 of the rotating disc 54 slidably engages in the linear sliding slot 5221 through the arc-shaped sliding slot 523, the first driver 53 can push the driving plate 522 so that one end thereof slides along the linear guide rail 521 and the other end thereof relatively rotates, thereby driving the rotating disc 54 inserted in the arc-shaped sliding slot 523 and the linear sliding slot 5221 to rotate, and further driving the nozzle 51 to. The first driver 53 and the second driver 56 are linear motors.

The nozzle 51 can be deflected to a position convenient for cleaning the residual glue of the nozzle 51 and a position convenient for calibrating the nozzle 51, so that the adaptability of the spraying device 50 can be improved, and the spraying operation of products in different spraying positions can be facilitated. The mounting seat 52 is further provided with a collecting barrel 58 and a calibrating piece 59, and the calibrating piece 59 can be installed on the mounting seat 52 in a turnover mode through the turnover plate 591, so that the collecting barrel 58 can be used for collecting the dropped catalyst conveniently when the device is not used, the structure is simple, and the space is effectively utilized.

Referring to fig. 10 to 12, the screwing device 40 includes a torsion bar 41 disposed above the conveying device 10, the torsion bar 41 can move linearly to be inserted into or separated from the fastening member 300, and the torsion bar 41 can also rotate to drive the fastening member 300 to rotate around the pen core 201 until the torsion bar is screwed at the assembling position w 1.

Referring to fig. 11, the twisted joint 41 is tubular and has a slot 411 on its wall, and the mouth of the twisted joint 41 has an insertion structure 42 that is concave-convex matched with the top end of the fastener 300. Specifically, the number of the slots 411 is plural, so that it is easy to confirm whether the fastener 300 is fitted in place or not by observing through the slots 411. Preferably, when the number of the slots 411 is odd, the recognition effect is better when the side surface is polished. The inserting structure 42 includes a plurality of protruding teeth 421 corresponding to the plurality of grooves 301 on the top end of the fastening member 300 and an inserting groove 422 formed between the adjacent protruding teeth 421, when inserting, the protruding teeth 421 of the torsion joint 41 are inserted into the plurality of grooves 301 on the top end of the fastening member 300, and simultaneously, the top end portions of the two adjacent grooves 301 of the fastening member 300 are inserted into the inserting groove 422 correspondingly, so as to drive the fastening member 300 to rotate.

The screwing device 40 further comprises a screwing driving mechanism 43, the screwing driving mechanism 43 can drive the torsion joint 41 connected with the screwing driving mechanism 43 to move linearly and rotate, wherein a torsion sensor 432 and a damper 433 are further arranged between the rotary driver 431 of the screwing driving mechanism 43 and the torsion joint 41, so that the knob action of the torsion joint 41 is accurately controlled. The knob driving mechanism 43 drives the torque joint 41 to move linearly to be inserted into the barrel 202 to be inserted into the fastener 300, and then drives the torque joint 41 to rotate around the pen core 201 in forward and reverse directions, so as to move up and down relative to the barrel 202, thereby driving the catalyst and the thread compound between the fastener 300 and the pen core 201 to be mixed sufficiently, and then rotates the torque joint 41 to adjust the assembling distance h between the top end surface of the fastener 300 and the tip end of the pen core 201 until the required assembling position w1 is reached.

Referring to fig. 12, in order to improve the screwing accuracy, the screwing device 40 further includes a positioning element 44 and a positioning driving mechanism 45 disposed beside the transmission rail 11, the positioning driving mechanism 45 can drive the positioning element 44 connected thereto to reciprocate linearly, so that the positioning element 44 can approach or leave the positioning fixture 60, thereby clamping or loosening the pen container 302 in the positioning fixture 60 from the upper and lower ends of the positioning fixture 60, wherein the clamping portion 441 at the lower end can penetrate through the window 62 of the positioning fixture 60 and extend into the positioning fixture 60 to fix the pen container 302 from the lower side, and the clamping portion 441 at the upper end is located at the top end of the positioning fixture 60 to fix the pen container 302 from the upper side.

In order to improve the accuracy of the screwing, the screwing device 40 further comprises an industrial camera 46, wherein an industrial camera 46 is respectively arranged above and beside the conveying device 10, the upper industrial camera 46 is used for identifying the position of the fastener 300, and the side industrial camera 46 is used for identifying the assembling position between the fastener 300 and the pen core 201 under the action of the reflector 47. Specifically, the assembly position of the fastener 300 in the pen container 202 can be identified through the slot 2021 on the wall of the pen container 202 and the slot 411 on the wall of the torque connector 41, and the assembly distance between the top end face of the fastener 300 outside the pen container 202 and the tip of the pen core 201 can also be directly identified.

The operation of the automatic assembly aligning apparatus 100 of the present invention is described as follows with reference to fig. 1 to 12:

after the equipment is started, under the instruction of the control system, the conveying device 10 alternately conveys the positioning jig 60 which carries the fasteners 300 and the touch-control pen 200 and circulates at the previous equipment on the two conveying guide rails 11 of the equipment; when the positioning device 60 is conveyed to the dispensing device 20, the dispensing needle nozzle 21 of the dispensing device 20 deflects by a certain angle to be close to the pen core 201, and the positioning fixture 60 is driven to rotate by matching with the rotating mechanism 23, and the screw thread glue is dispensed on the circumferential direction of the pen core 201 by rotating 120 degrees each time; the positioning jig 60 is continuously conveyed to the assembling device 20, the assembling device 20 takes the fastener 300 off the positioning jig 60 and transfers the fastener 300 to the spraying device 50, rotates the fastener 300 by 90 degrees, the spray head 51 of the spraying device 50 moves downwards in an inclined way to be close to the inner wall of the fastener 300 to start spraying the catalyst, the fastener 300 rotates 360 degrees around the spray head 51 to uniformly spray the catalyst in the circumferential direction of the inner wall, and then the assembling device 20 returns to the conveying device 10 to sleeve the sprayed fastener 300 on the pen core 201 after dispensing; the positioning jig 60 is continuously conveyed to the screwing device 40, the screwing device 40 repeatedly rotates the fastener 300 to fully mix the catalyst and the thread compound, and then the assembly gap h between the fastener 300 and the pen core 201 is accurately adjusted under the cooperation of the industrial camera 46 until the assembly position is adjusted to meet the requirement; finally, after the assembly is completed, the positioning fixture 60 is transported on the transport rail 11 for discharging.

By repeating the above operations, the automatic assembly line process of the fastener 300 between the pen core 201 and the pen container 202 of the stylus pen 200 can be realized.

Compared with the prior art, the automatic assembly alignment apparatus 100 of the present invention transmits the fastener 300 supported on the positioning fixture 60 and the stylus 200 fixed in the positioning fixture 60 through the transmission device 10, the dispensing device 20 firstly dispenses thread glue on the outer thread of the pen core 201, the assembling device 30 transfers the fastener 300 on the positioning fixture 60 to the spraying device 50, and after spraying the catalyst on the inner wall of the fastener 300 by matching with the spraying device 50, the sprayed fastener 300 is sleeved on the dispensed pen core 201, and in the process that the screwing device 40 screws the fastener 300 to the assembly position w1 at the barrel mouth of the pen barrel 202, the catalyst and the thread glue are mixed, so that the fastener 300 screwed to the assembly position w1 is firmly bonded at the assembly position. The automatic assembly and alignment equipment 100 can realize automatic flow operation, has a simple structure, is simple to operate and effectively realizes accurate assembly by firstly placing and then aligning and screwing, can accelerate the curing speed of the thread glue and effectively improve the bonding firmness by matching the catalyst and the thread glue, can avoid the problem of pollution of the overflow glue to the product due to relatively long curing time of the thread glue to a certain extent, and effectively ensures the product quality while improving the production efficiency.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, therefore, the present invention is not limited by the appended claims.

Claims

1. An automatic assembly alignment device is suitable for assembling fasteners between a pen core and a pen container of a touch pen, and is characterized by comprising a conveying device, glue dispensing devices, an assembling device, a screwing device and a spraying device, wherein the glue dispensing devices, the assembling device and the screwing device are sequentially arranged along the conveying direction of the conveying device, the spraying device is arranged beside the assembling device, and the conveying device is used for conveying the fasteners supported on a positioning jig and the touch pen fixed in the positioning jig; the dispensing device is used for dispensing thread glue on the outer threads of the pen core positioned at the opening of the pen container; the assembling device is arranged between the conveying device and the spraying device in a reciprocating mode, is used for transferring the fastening piece on the positioning jig to the spraying device, is matched with the spraying device to spray a catalyst on the inner wall of the fastening piece, and is also used for sleeving the sprayed fastening piece on the pen core after dispensing; the screwing device is used for screwing the fastening piece sleeved on the pen core, so that the fastening piece is adjusted and bonded at an assembling position, one end of the fastening piece at the assembling position is screwed into the pen container, and the other end of the fastening piece is positioned outside the pen container.

2. The automatic assembly and alignment apparatus as claimed in claim 1, wherein the conveyor comprises two conveyor rails arranged side by side, a dispensing device and an assembling device are sequentially mounted above the two conveyor rails and can move back and forth between the two conveyor rails, the two screwing devices are arranged in one-to-one correspondence with the two conveyor rails at the rear side of the assembling device, and a spraying device is fixed beside at least one of the conveyor rails.

3. The automatic assembling and aligning apparatus according to claim 2, wherein the conveying device further comprises a rail-changing mechanism disposed between the two conveying rails, the rail-changing mechanism comprises a pushing plate disposed at the head end and the tail end of the two conveying rails and below the two conveying rails, a receiving rail disposed between the two conveying rails and having a conveying direction perpendicular to the conveying direction of the two conveying rails, and two pushing members disposed at the head end of one conveying rail and the tail end of the other conveying rail, the pushing plate is used for pushing or receiving the positioning jig so that the positioning jig can be separated from or dropped onto the conveying rails, and the pushing members are used for pushing the positioning jig separated from the conveying rails so that the positioning jig can be transferred to the other conveying rail through the receiving rail.

4. The automatic assembling and aligning apparatus of claim 1, wherein the dispensing nozzle of the dispensing device is deflectable.

5. The automated assembly and alignment apparatus of claim 1, wherein the assembly device is adapted to angularly displace the fasteners so that the inner walls of the fasteners are opposite the nozzles of the spray device, and wherein the assembly device is further adapted to rotate the fasteners relative to the nozzles to circumferentially spray the catalyst on the inner walls thereof.

6. The automatic assembly and alignment apparatus of claim 1, wherein the nozzle of the spray device is capable of diagonal movement toward and away from the fastener and is also capable of angular deflection relative to the fastener.

7. The automatic assembly and alignment apparatus of claim 6, wherein the spraying device further comprises a mounting base, a first driver, a rotating disc, a follower plate, a second driver and a spray head, the first driver is mounted on a back surface of the mounting base, the rotating disc is rotatably mounted on a front surface of the mounting base and is connected to an output end of the first driver, the follower plate is fixed to the rotating disc in an inclined manner with respect to the mounting base, the second driver is mounted on the follower plate, the spray nozzle is connected to an output end of the second driver through the spray head connected thereto, the second driver can drive the spray head to move diagonally with respect to the mounting base, the first driver can drive the rotating disc to rotate, so that the follower plate drives the second driver to rotate, the spray head drives the spray nozzle to deflect a certain angle relative to the mounting seat.

8. The automatic assembly alignment apparatus of claim 7, wherein the painting device further comprises a first linear guide and a driving plate disposed on a back surface of the mounting seat, the linear guide rail is arranged along the lengthwise direction of the mounting seat, one end of the driving plate is slidably arranged on the first linear guide rail, the other end of the driving plate is provided with a linear sliding groove arranged along the transverse width direction of the driving plate, an arc-shaped sliding groove is arranged on the mounting seat along the lengthwise direction of the mounting seat corresponding to the linear sliding groove, the inserting part of the rotating disc passes through the arc-shaped sliding groove and is slidably clamped in the linear sliding groove, the first driver can push the driving plate to enable one end of the driving plate to slide along the first linear guide rail and the other end of the driving plate to rotate relatively, thereby driving the rotating disc which is penetrated in the arc-shaped sliding groove and the linear sliding groove to rotate.

9. The automatic assembly and alignment device of claim 1, wherein the screwing means includes a twist head disposed above the conveying means, the twist head being linearly movable to engage and disengage the fastener, the twist head being further rotatable to rotate the fastener about the cartridge until screwed into an assembly position.

10. The automatic assembly alignment device as claimed in claim 7, wherein the twisted joint is tubular and has a slot on its wall, and the mouth of the twisted joint has a plug-in structure that is concave-convex matched with the top end of the fastener.